WO2025107749A1 - 转动机构和可折叠电子设备 - Google Patents

转动机构和可折叠电子设备 Download PDF

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Publication number
WO2025107749A1
WO2025107749A1 PCT/CN2024/112088 CN2024112088W WO2025107749A1 WO 2025107749 A1 WO2025107749 A1 WO 2025107749A1 CN 2024112088 W CN2024112088 W CN 2024112088W WO 2025107749 A1 WO2025107749 A1 WO 2025107749A1
Authority
WO
WIPO (PCT)
Prior art keywords
stop surface
swing arm
main swing
base
sub
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/112088
Other languages
English (en)
French (fr)
Inventor
黄圣贤
董绍洪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honor Device Co Ltd
Original Assignee
Honor Device Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honor Device Co Ltd filed Critical Honor Device Co Ltd
Priority to EP24834589.4A priority Critical patent/EP4583083A4/en
Publication of WO2025107749A1 publication Critical patent/WO2025107749A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating 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
    • G09F9/301Indicating 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00Pivots; Pivotal connections
    • F16C11/04Pivotal connections
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00Pivots; Pivotal connections
    • F16C11/04Pivotal connections
    • F16C11/12Pivotal connections incorporating flexible connections, e.g. leaf springs
    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16Constructional details or arrangements
    • G06F1/1613Constructional details or arrangements for portable computers
    • G06F1/1633Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681Details related solely to hinges
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216Foldable in one direction, i.e. using a one degree of freedom hinge
    • H04M1/022The hinge comprising two parallel pivoting axes
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00Casings, cabinets or drawers for electric apparatus
    • H05K5/02Details
    • H05K5/0217Mechanical details of casings
    • H05K5/0226Hinges
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026Details of the structure or mounting of specific components
    • H04M1/0266Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268Details of the structure or mounting of specific components for a display module assembly including a flexible display panel

Definitions

  • the present application relates to the technical field of electronic products, and in particular to a rotating mechanism and a foldable electronic device.
  • the appearance (ID) of electronic devices tends to develop from straight-screen phones to foldable phones.
  • Foldable electronic devices have a large display screen when open, which fully satisfies the visual experience of consumers. When closed, they are small in size and easy to carry.
  • the hinge is the core component of a foldable electronic device, and the main swing arm in the hinge supports the movement of the middle frame.
  • the main swing arm has a virtual position, which will cause redundancy and anti-arching of the display screen, affecting the user experience.
  • the present application provides a rotating mechanism and a foldable electronic device, which can reduce the virtual position of the foldable electronic device in a flattened state and solve the technical problem that the display screen is prone to redundancy and arching.
  • the present application provides a rotation mechanism.
  • the rotation mechanism includes a base, a first main swing arm and a second main swing arm.
  • the base is provided with a first rotation groove and a second rotation groove, and the first rotation groove and the second rotation groove are arranged opposite to each other along the width direction of the rotation mechanism.
  • the base includes a first stop surface, the first stop surface is located in the first rotation groove, and the plane where the first stop surface is located intersects with the width direction of the base.
  • the first main swing arm includes a second stop surface, and the plane where the second stop surface is located intersects with the width direction of the base.
  • the first main swing arm is installed in the first rotation groove, the second stop surface faces the first rotation groove, and the first main swing arm can rotate and slide along the first rotation groove; the second main swing arm is installed in the second rotation groove, and the second main swing arm can rotate and slide along the second rotation groove.
  • the first stop surface and the second stop surface are arranged opposite to each other, and the first main swing arm and the base are stopped along the width direction of the base, and the first main swing arm and the second main swing arm can be rotated in a direction approaching each other so that the first main swing arm can be folded relative to the second main swing arm.
  • a first stop surface is set on the base
  • a second stop surface is set on the first main swing arm
  • the second stop surface is arranged opposite to the first stop surface, so that the first stop surface can prevent the first main swing arm from moving toward the base along the width direction of the base, thereby reducing or even avoiding the virtual position of the rotating mechanism in the unfolded state, thereby improving the user's experience; at the same time, it can also avoid redundancy and arching of the display screen, thereby improving the service life of the display screen.
  • the base also includes a third stop surface, which is located in the second rotation groove, and the plane where the third stop surface is located intersects with the width direction of the base.
  • the second main swing arm includes a fourth stop surface, and the plane where the fourth stop surface is located intersects with the width direction of the base.
  • the second main swing arm is installed in the second rotation groove.
  • the fourth stop surface faces the second rotation groove, and the second main swing arm can rotate and slide along the second rotation groove.
  • a third stop surface is set on the base and a fourth stop surface is set on the second main swing arm.
  • the fourth stop surface is arranged opposite to the third stop surface, so that the third stop surface can prevent the second main swing arm from moving toward the base along the width direction of the base, thereby further reducing or even avoiding the virtual position of the rotating mechanism in the unfolded state, thereby improving the user experience.
  • the first stop surface and the second stop surface abut against each other, and the direction of the abutting force between the first stop surface and the second stop surface is consistent with the width direction of the base.
  • the fourth stop surface and the third stop surface abut against each other, and the direction of the abutting force between the fourth stop surface and the third stop surface is consistent with the width direction of the base.
  • the rotating mechanism when the rotating mechanism is in the unfolded state, the user may apply a force toward the base to the main swing arm during use. This force causes the main swing arm to have a tendency to move toward the base along the width direction of the base. This tendency is the virtual position when the rotating mechanism is in the unfolded state.
  • the direction of the supporting force between the first stop surface and the second stop surface is consistent with the width direction of the base, so that the stop force direction of the rotating mechanism is parallel to the direction in which the user squeezes the virtual position when using the foldable electronic device, thereby improving the stop accuracy of the rotating mechanism and enhancing the user experience.
  • the first rotation groove includes a first inner wall, the first inner wall is arranged opposite to the second rotation groove, and the first inner wall includes the first stop surface.
  • the base also includes a first guide rail, the first guide rail is fixed to the first inner wall and extends in a direction away from the second rotation groove, and the first guide rail and the first stop surface are arranged side by side.
  • the first main swing arm includes a first end, the first main swing arm is provided with a first groove, the opening of the first groove is located on the top surface or the bottom surface of the first main swing arm, and the first groove passes through the first end.
  • the first main swing arm When the first main swing arm is installed on the base, the first end faces the first rotation groove, at least part of the first guide rail is located in the first groove, and the first main swing arm can rotate and slide in the first rotation groove along the first guide rail.
  • a first guide rail is set on the base, a first groove is set on the first main swing arm, and the first guide rail is installed in the first groove, so that the first main swing arm can rotate relative to the base along the first guide rail, thereby improving the rotation stability of the first main swing arm and preventing the first main swing arm from deviating from the preset path during rotation, thereby improving the stopping effect and stopping accuracy between the second stop surface and the first stop surface.
  • the first guide rail and the first stop surface are arranged side by side; the opening of the first groove is located at the bottom surface of the first main swing arm, and the second stop surface is arranged on the side wall of the first groove and faces the first end.
  • the first guide rail is located on the side of the first groove facing away from the top surface of the base, and the top surface of the first guide rail is opposite to and in contact with the bottom wall surface of the groove.
  • the first guide rail and the first stop surface are arranged side by side along the length direction of the base, and the second stop surface is arranged on the side wall of the first groove, so that when the first main swing arm rotates relative to the base along the first guide rail, the first stop surface can The first main swing arm can rotate along the rotation path of the first main swing arm toward the second stop surface, thereby preventing the first stop surface from deviating from the second stop surface when the first main swing arm is unfolded relative to the base, thereby improving the stopping effect and stopping accuracy between the second stop surface and the first stop surface.
  • the first guide rail and the first stop surface are arranged side by side, and the first guide rail is located on the side of the first stop surface close to the top surface of the base.
  • the opening of the first groove is located on the top surface of the first main swing arm, and the second stop surface is arranged at the first end and connected between the bottom surface of the first main swing arm and the bottom wall surface of the first groove.
  • the area of the second stop surface can be increased, thereby increasing the contact area between the second stop surface and the first stop surface, and increasing the stop area between the first main swing arm and the base, thereby further improving the stopping effect and stopping accuracy of the first main swing arm and the base, and further reducing or even avoiding the virtual position when the rotating mechanism is in the unfolded state.
  • the first stop surface includes a first sub-stop surface, which is arranged side by side with the first guide rail along the thickness direction of the base, and the first sub-stop surface is located on a side of the first guide rail close to the top surface of the base.
  • the opening of the first groove is located on the bottom surface of the first main swing arm, and the second stop surface includes a second sub-stop surface, which is arranged at the first end and connected between the top surface of the first main swing arm and the bottom wall of the first groove.
  • the first guide rail When the first main swing arm is installed on the base, the first guide rail is located on the side of the first groove facing away from the top surface of the base, and the top surface of the first guide rail is opposite to and in contact with the bottom wall surface of the first groove.
  • the first sub-stop surface When the first main swing arm is unfolded relative to the base, the first sub-stop surface is arranged opposite to the second sub-stop surface.
  • the area of the second sub-stop surface can be increased, thereby increasing the contact area between the second sub-stop surface and the first sub-stop surface, and increasing the stop area between the first main swing arm and the base, thereby further improving the stopping effect and stopping accuracy of the first main swing arm and the base, and further reducing or even avoiding the virtual position when the rotating mechanism is in the unfolded state.
  • the first stop surface further includes a third sub-stop surface, and the third sub-stop surface is arranged side by side with the first guide rail along the length direction of the base.
  • the first main swing arm further includes a fourth sub-stop surface, and the fourth sub-stop surface is arranged on the side wall of the first groove and faces the first end. When the first main swing arm is unfolded relative to the base, the third sub-stop surface is arranged opposite to the fourth sub-stop surface.
  • the first main swing arm and the base are stopped not only by the second sub-stop surface and the first sub-stop surface, but also by the fourth sub-stop surface and the third sub-stop surface, thereby further preventing the first main swing arm from continuing to move along the width direction of the base toward the base, further improving the stopping effect and stopping accuracy, reducing or even avoiding the virtual position when the rotating mechanism is in the unfolded state, and improving the user experience.
  • the first stop surface includes a first sub-stop surface, and the first guide rail and the first sub-stop surface are arranged side by side along the length direction of the base.
  • the second stop surface includes a second sub-stop surface, and the second sub-stop surface is arranged at one end of the first main swing arm and connected between the top surface of the first main swing arm and the bottom surface of the first main swing arm.
  • the area of the second sub-stop surface can be further increased, thereby increasing the contact area between the second sub-stop surface and the first sub-stop surface, increasing the stop area between the first main swing arm and the base, and further improving the stopping effect and stopping accuracy of the first main swing arm and the base, and further reducing or even avoiding the virtual position when the rotating mechanism is in the unfolded state.
  • the first stop surface further includes a third sub-stop surface, which is arranged side by side with the first stop surface and the first guide rail along the length direction of the base, and the third sub-stop surface is located between the first sub-stop surface and the first guide rail.
  • the opening of the first groove is located at the bottom surface of the first main swing arm;
  • the second stop surface further includes a fourth sub-stop surface, which is arranged on the side wall of the first groove and faces the first end.
  • the first main swing arm and the base are stopped not only by the second sub-stop surface and the first sub-stop surface, but also by the fourth sub-stop surface and the third sub-stop surface, thereby further preventing the first main swing arm from continuing to move along the width direction of the base toward the base, further improving the stopping effect and stopping accuracy, reducing or even avoiding the virtual position when the rotating mechanism is in the unfolded state, and improving the user experience.
  • the first stop surface and the second stop surface are interference fit.
  • the "interference fit” mentioned here refers to mutual support and compression.
  • a compression fit between the first stop surface and the second stop surface can be achieved, thereby further preventing the first main swing arm from moving along the width direction of the base toward the base, thereby further improving the stop accuracy of the rotating mechanism, reducing the virtual position of the rotating mechanism in the unfolded state, improving the reliability of the display screen of the foldable electronic device, and improving the user experience.
  • the interference between the first stop surface and the second stop surface is 0 mm to 0.1 mm.
  • the rotating mechanism further includes a wear-resistant layer, and the wear-resistant layer is provided on the first stop surface and/or the second stop surface.
  • the wear resistance of the stop surface can be improved, thereby improving the stopping effect between the first stop surface and the second stop surface, thereby improving the service life of the rotating mechanism and improving the stopping accuracy of the rotating mechanism throughout its life cycle.
  • the rotating mechanism has a folded state and an unfolded state.
  • the first main swing arm rotates along a first direction.
  • the rotating mechanism is in the unfolded state, the first main swing arm and the base stop in a second direction; wherein the second direction is opposite to the first direction.
  • the rotating mechanism when the rotating mechanism is in the unfolded state, the first main swing arm and the base stop in the second direction, thereby preventing the foldable electronic device from being over-unfolded and causing damage to the display screen.
  • the base includes a shaft cover and a support plate, wherein the shaft cover and the support plate are stacked and fixedly connected to each other.
  • the shaft cover and the support plate are stacked and fixedly connected to each other.
  • the top surface of the first main swing arm, the top surface of the second main swing arm and the top surface of the support plate are used together to support the display screen, thereby improving the reliability of the display screen and ensuring good display of the display screen.
  • the present application provides a foldable electronic device.
  • the foldable electronic device includes a first shell, a second shell, a display screen, and the above-mentioned rotating mechanism.
  • the rotating mechanism is connected between the first shell and the second shell, and the display screen is installed on the first shell, the second shell, and the rotating mechanism. When the rotating mechanism rotates, the first shell and the second shell rotate relative to each other to drive the display screen to bend or unfold.
  • the foldable electronic device with the above-mentioned rotating mechanism has little or no empty space when in the unfolded state, and the display screen is not prone to redundancy and arching.
  • the rotating mechanism has a first stop surface set on the base and a second stop surface set on the first main swing arm, and when the first main swing arm is unfolded relative to the base, the second stop surface is arranged opposite to the first stop surface, so that the second stop surface can prevent the first main swing arm from moving toward the base along the width direction of the base, thereby reducing or even avoiding the virtual position of the rotating mechanism in the unfolded state, thereby improving the user's sense of experience; at the same time, it can also avoid redundancy and arching of the display screen, thereby improving the service life of the display screen, and can also avoid excessive unfolding of the foldable electronic device and damage to the display screen.
  • FIG1 is a schematic structural diagram of a foldable electronic device in a first state provided by an embodiment of the present application
  • FIG2 is a schematic structural diagram of a foldable electronic device in a second state provided by an embodiment of the present application.
  • FIG3 is a schematic structural diagram of a foldable electronic device in a third state provided by an embodiment of the present application.
  • FIG4 is a schematic diagram of the exploded structure of the foldable electronic device shown in FIG3 ;
  • FIG5 is a schematic structural diagram of a rotating mechanism in the foldable electronic device shown in FIG4 ;
  • FIG6 is a schematic diagram of the exploded structure of the rotating mechanism shown in FIG5 ;
  • FIG7 is a schematic diagram of a partial structure of a base in the rotating mechanism shown in FIG5 ;
  • FIG8 is an enlarged structural schematic diagram of the main swing arm in the rotating mechanism shown in FIG6;
  • FIG9 is a schematic structural diagram of the main swing arm shown in FIG8 at another angle
  • FIG10 is a schematic diagram of a partial structure of the rotating mechanism shown in FIG5;
  • FIG11 is a schematic diagram of the cross-sectional structure of the rotating mechanism shown in FIG10 along the A-A direction;
  • FIG12 is a schematic diagram of a partial structure of the rotating mechanism shown in FIG5 in a second embodiment
  • FIG13 is a schematic structural diagram of a bracket in the rotating mechanism shown in FIG12;
  • FIG14 is a schematic diagram of the exploded structure of the bracket shown in FIG13 at another angle
  • FIG15 is an enlarged structural schematic diagram of the main swing arm in the rotating mechanism shown in FIG12;
  • FIG16 is an enlarged structural schematic diagram of the main swing arm shown in FIG15 at another angle
  • Fig. 17 is a schematic diagram of the cross-sectional structure of the rotating mechanism shown in Fig. 12 along the B-B direction;
  • FIG18 is a schematic diagram of a partial structure of the rotating mechanism shown in FIG5 in a third embodiment
  • FIG19 is a schematic diagram of the exploded structure of the rotating mechanism shown in FIG18;
  • FIG20 is a schematic diagram of the exploded structure of the rotating mechanism shown in FIG18 at another angle
  • Fig. 21 is a schematic diagram of the cross-sectional structure of the rotating mechanism shown in Fig. 18 along the C-C direction;
  • FIG22 is a schematic diagram of a partial structure of the rotating mechanism shown in FIG5 in a fourth embodiment
  • FIG23 is a schematic diagram of the exploded structure of the rotating mechanism shown in FIG22;
  • FIG24 is a schematic diagram of the exploded structure of the rotating mechanism shown in FIG22 at another angle;
  • FIG25 is a schematic diagram of the cross-sectional structure of the rotating mechanism shown in FIG22 along the D-D direction;
  • FIG26 is a schematic structural diagram of a fixing frame in the first rotating assembly of the rotating mechanism shown in FIG5 ;
  • FIG27 is a schematic diagram of a partial structure of a pressure plate in the rotating mechanism shown in FIG5;
  • FIG. 28 is a schematic diagram of a partially exploded structure of the rotating mechanism shown in FIG. 6 .
  • the hinge is the core component of the foldable electronic device, and the main swing arm in the hinge supports the movement of the middle frame.
  • the rotating mechanism provided in the present application has a stop mechanism, which can reduce the virtual position of the foldable electronic device in the unfolded state and avoid redundancy and anti-arching of the display screen.
  • Figure 1 is a structural schematic diagram of the foldable electronic device 1000 provided in an embodiment of the present application in a first state
  • Figure 2 is a structural schematic diagram of the foldable electronic device 1000 provided in an embodiment of the present application in a second state
  • Figure 3 is a structural schematic diagram of the foldable electronic device 1000 provided in an embodiment of the present application in a third state.
  • the width direction of the foldable electronic device 1000 is defined as the X direction
  • the length direction of the foldable electronic device 1000 is defined as the Y direction
  • the thickness direction of the foldable electronic device 1000 is defined as the Z direction.
  • the X direction, the Y direction, and the Z direction are perpendicular to each other.
  • the foldable electronic device 1000 includes, but is not limited to, a cell phone, a notebook computer, a tablet personal computer, a laptop computer, a personal digital assistant, a wearable device, or a mobile device, etc. In the embodiment of the present application, the foldable electronic device 1000 is taken as an example of a cell phone.
  • the foldable electronic device 1000 includes a folded state and an unfolded state.
  • the unfolded state includes a semi-expanded state and a flattened state.
  • the foldable electronic device 1000 shown in FIG1 is in a folded state
  • the foldable electronic device 1000 shown in FIG2 is in a semi-expanded state
  • the foldable electronic device 1000 shown in FIG3 is in a flattened state.
  • the unfolding angle ⁇ of the foldable electronic device 1000 shown in FIG2 is 90 degrees
  • the unfolding angle ⁇ of the foldable electronic device 1000 shown in FIG3 is 180 degrees.
  • the unfolding angle ⁇ of the foldable electronic device 1000 shown in FIG. 2 is 90 degrees, which means that ⁇ can be 90 degrees, or approximately 90 degrees, such as 80 degrees, 85 degrees, 95 degrees or 0 degrees.
  • the unfolding angle ⁇ of the foldable electronic device 1000 shown in FIG. 3 is 180 degrees, which means that ⁇ can be 180 degrees, or approximately 180 degrees, such as 170 degrees, 175 degrees, 185 degrees and 190 degrees.
  • the angles illustrated in the following text can be understood in the same way.
  • the foldable electronic device 1000 shown in the embodiment of the present application is an electronic device that can be folded once.
  • the foldable electronic device 1000 can also be an electronic device that can be folded multiple times (more than twice).
  • the foldable electronic device 1000 may include multiple parts. Two adjacent parts can be folded relatively close to each other until the foldable electronic device 1000 is in a folded state, and two adjacent parts can be unfolded relatively far away from each other until the foldable electronic device 1000 is in a flattened state.
  • FIG. 4 is a schematic diagram of the exploded structure of the foldable electronic device 1000 shown in FIG. 3 .
  • the foldable electronic device 1000 includes a folding device 200 and a display screen 300, and the display screen 300 is installed on the folding device 200.
  • the display screen 300 includes a display surface 340 and a mounting surface 350, and the display surface 340 and the mounting surface 350 are arranged opposite to each other.
  • the display surface 340 is used to display text, images, videos, etc.
  • the display screen 300 includes a first part 310, a second part 320 and a foldable part 330.
  • the foldable part 330 is located between the first part 310 and the second part 320, and the foldable part 330 can be bent along the Y direction.
  • the first part 310, the second part 320 and the foldable part 330 together constitute the display screen 300.
  • the display screen 300 is a flexible display screen 300.
  • the folding device 200 includes a first shell 210, a second shell 220 and a rotating mechanism 100.
  • the rotating mechanism 100 is partially fixed to the first shell 210 and partially fixed to the second shell 220 to achieve a rotating connection between the first shell 210 and the second shell 220.
  • the display screen 300 is mounted on the folding device 200, and the mounting surface 350 is fixedly connected to the folding device 200.
  • the first shell 210 carries the first part 310 of the display screen 300
  • the second shell 220 carries the second part 320.
  • the first part 310 is mounted on the first shell 210
  • the second part 320 is mounted on the second shell 220.
  • the rotating mechanism 100 is arranged opposite to the foldable part 330.
  • the first shell 210 and the second shell 220 can rotate relative to each other through the rotating mechanism 100, so that the folding device 200 can switch between the folded state and the flattened state.
  • the first housing 210 and the second housing 220 rotate relative to each other through the rotating mechanism 100, and the first housing 210 and the second housing 220 are relatively close to each other to drive the display screen 300 to fold, so that the foldable electronic device 1000 is folded.
  • the foldable electronic device 1000 is in the folded state, the foldable portion 330 of the display screen 300 is bent, and the first portion 310 and the second portion 320 are arranged relative to each other.
  • the display screen 300 is between the first housing 210 and the second housing 220, which can greatly reduce the probability of the display screen 300 being damaged, and effectively protect the display screen 300.
  • the first shell 210 and the second shell 220 rotate relative to each other through the rotating mechanism 100.
  • the first shell 210 and the second shell 220 move away from each other to drive the display screen 300 to unfold, so that the foldable electronic device 1000 is unfolded to a semi-expanded state.
  • the first shell 210 and the second shell 220 unfold to an angle of ⁇
  • the first part 310 and the second part 320 unfold relative to each other, and drive the foldable part 330 to unfold.
  • the angle between the first part 310 and the second part 320 is ⁇ .
  • is 90 degrees.
  • may also be approximately 90 degrees, or 80 degrees, 85 degrees, 95 degrees, or 0 degrees.
  • the first shell 210 and the second shell 220 rotate relative to each other through the rotating mechanism 100.
  • the first shell 210 and the second shell 220 move away from each other to drive the display screen 300 to further unfold until the foldable electronic device 1000 is flattened.
  • the angle between the first shell 210 and the second shell 220 is ⁇ .
  • the foldable part 330 unfolds, and the first part 310 and the second part 320 unfold relative to each other.
  • the angles between the first part 310, the second part 320 and the foldable part 330 are all ⁇ , and the display screen 300 has a large display area, realizing a large screen display of the foldable electronic device 1000 and improving the user experience.
  • is 180 degrees.
  • can also be approximately 180 degrees, and can be 170 degrees, 175 degrees, 185 degrees, 190 degrees, etc.
  • the angle ⁇ and the angle ⁇ are both the angles between the first shell 210 and the second shell 220, which are only used to distinguish the different angles between the first shell 210 and the second shell 220 in different states of the foldable electronic device 1000.
  • the angle ⁇ refers to the angle between the first shell 210 and the second shell 220 when the foldable electronic device 1000 is in the semi-expanded state; the angle ⁇ refers to the angle between the first shell 210 and the second shell 220 when the foldable electronic device 1000 is in the flattened state.
  • the angle between the two shells 220 is both the angles between the first shell 210 and the second shell 220, which are only used to distinguish the different angles between the first shell 210 and the second shell 220 in different states of the foldable electronic device 1000.
  • the angle ⁇ refers to the angle between the first shell 210 and the second shell 220 when the foldable electronic device 1000 is in the semi-expanded state
  • the angle ⁇ refers to the angle between the first shell 210 and the
  • FIG. 5 is a schematic structural diagram of the rotating mechanism 100 in the foldable electronic device 1000 shown in FIG. 4
  • FIG. 6 is a schematic exploded structural diagram of the rotating mechanism 100 shown in FIG. 5 .
  • the present application sets a reference plane P.
  • the reference plane P passes through the center of the rotating mechanism 100 and is perpendicular to the X direction.
  • the directional terms such as "top” and “bottom” used in the present application embodiment to describe the rotating mechanism 100 are mainly explained based on the display orientation of the rotating mechanism 100 in FIG. 5, with the negative direction of the Z axis as the "top” and the positive direction of the Z axis as the “bottom”, which does not constitute a limitation on the orientation of the rotating mechanism 100 in actual application scenarios.
  • the rotating mechanism 100 includes a base 10, a rotating assembly 1, a synchronous assembly 50 and a pressure plate 40.
  • the rotating assembly 1 and the synchronous assembly 50 are both mounted on the base 10 and can rotate relative to the base 10, and the synchronous assembly 50 is slidably connected to the rotating assembly 1.
  • the pressure plate 40 is mounted on the rotating assembly 1 and is slidably connected to the rotating assembly 1.
  • the four rotating components 1 are respectively a first rotating component 101, a second rotating component 102, a third rotating component 103 and a fourth rotating component 104.
  • the first rotating component 101, the second rotating component 102, the third rotating component 103 and the fourth rotating component 104 are arranged in sequence along the Y direction.
  • the first rotating component 101 is located on the positive direction side of the Y axis of the base 10
  • the fourth rotating component 104 is located on the negative direction side of the Y axis of the base 10
  • the second rotating component 102 and the third rotating component 103 are located between the first rotating component 101 and the second rotating component 102.
  • the rotating components 1 can also be one, two, three or more than five. This application does not specifically limit the number of rotating components 1.
  • the first rotating assembly 101 includes a fixed frame 30 and a main swing arm 20.
  • the fixed frame 30 includes a first fixed frame 31 and a second fixed frame 32.
  • the main swing arm 20 includes a first main swing arm 21, a second main swing arm 24, a third main swing arm 27 and a fourth main swing arm 28.
  • the main swing arm 20 is mounted on the base 10 and can slide and rotate relative to the base 10.
  • the first fixed frame 31, the first main swing arm 21 and the third main swing arm 27 are located on one side of the base 10 in the X direction, and the first main swing arm 21 and the third main swing arm 27 are both rotatably connected to the first fixed frame 31.
  • the first fixed frame 31 When the first fixed frame 31 rotates relative to the base 10, it drives the first main swing arm 21 and the third main swing arm 27 to slide and rotate relative to the base 10.
  • the second fixed frame 32, the second main swing arm 24 and the fourth main swing arm 28 are located on the other side of the base 10 in the X direction, and the second main swing arm 24 and the fourth main swing arm 28 are both rotatably connected to the second fixed frame 32.
  • the second fixing frame 32 rotates relative to the base 10
  • the second main swing arm 24 and the fourth main swing arm 28 are driven to slide and rotate relative to the base 10 .
  • the second rotating assembly 102 and the first rotating assembly 101 may be the same or similar components, symmetrical or partially symmetrical structures, or different structures.
  • the second rotating assembly 102 has the same structure as the first rotating assembly 101.
  • the second rotating assembly 102 includes a fixed frame 30A and a main swing arm 20A.
  • the fixed frame 30A includes a first fixed frame 31A and a second fixed frame 32A.
  • the main swing arm 20A includes a first main swing arm 21A, a second main swing arm 24A, a third main swing arm 27A, and a fourth main swing arm 28A.
  • the basic structure of each component in the second rotating assembly 102, the connection relationship between the components, and the connection relationship between the components and the components outside the assembly can all refer to the relevant design of the first rotating assembly 101.
  • the second rotating assembly 102 and the first rotating assembly 101 may be the same or different in the detailed structure or position arrangement of the components.
  • the third rotating assembly 103 and the first rotating assembly 101 may be the same or similar assembly, symmetrical or partially symmetrical structure, or different structure.
  • the third rotating assembly 103 includes a fixing frame 30B and a main swing arm 20B.
  • the fixing frame 30B includes a first fixing frame 31B and a second fixing frame 32B.
  • the main swing arm 20B includes a first main swing arm 21B and a second fixing frame 32B. Second main swing arm 24B.
  • the basic structure of each component in the third rotating assembly 103, the connection relationship between the components, and the connection relationship between the components and the components outside the assembly can all refer to the relevant design of the first rotating assembly 101.
  • the difference between the third rotating assembly 103 and the first rotating assembly 101 is that there are two main swing arms 20B in the third rotating assembly 103. That is, the main swing arms 20B of the third rotating assembly 103 only include the first main swing arm 21B and the second main swing arm 24B, and do not include the third main swing arm and the fourth main swing arm.
  • the fourth rotating assembly 104 and the first rotating assembly 101 may be the same or similar assembly, symmetrical or partially symmetrical structure, or different structure.
  • the fourth rotating assembly 104 includes a fixed frame 30C and a main swing arm 20C.
  • the fixed frame 30C includes a first fixed frame 31C and a second fixed frame 32C.
  • the main swing arm 20C includes a first main swing arm 21C and a second main swing arm 24C.
  • the basic structure of each component in the fourth rotating assembly 104, the connection relationship between the components, and the connection relationship between the components and the components outside the assembly can all refer to the relevant design of the first rotating assembly 101.
  • the fourth rotating assembly 104 and the first rotating assembly 101 may be the same or different in the detailed structure or position arrangement of the components.
  • the difference between the fourth rotating assembly 104 and the first rotating assembly 101 is that there are two main swing arms 20 in the fourth rotating assembly 104. That is, the main swing arm 20C of the fourth rotating assembly 104 only includes the first main swing arm 21C and the second main swing arm 24C, and does not include the third main swing arm and the fourth main swing arm. Furthermore, the structure of the first main swing arm 21C in the fourth rotating assembly 104 is slightly different from that of the first main swing arm 21 in the first rotating assembly 101 .
  • the first fixed frames and the second fixed frames in the four rotating components 1 are all separate structural members, that is, the first fixed frames in the four rotating components 1 are split structures, and the second fixed frames are split structures.
  • the first fixed frames in the four rotating components 1 can also be fixedly connected to each other as a structural member, and the second fixed frames are fixed to each other as a structural member. That is, the first fixed frame 31 in the first rotating component 101, the first fixed frame 31A of the second rotating component 102, the first fixed frame 31B of the third rotating component 103, and the first fixed frame 31C of the fourth rotating component 104 are fixed to each other and are the same structural member.
  • the second fixed frame 32 in the first rotating component 101, the second fixed frame 32B of the second rotating component 102, the second fixed frame 32B of the third rotating component 103, and the second fixed frame 32C of the fourth rotating component 104 are fixed to each other and are the same structural member.
  • the pressing plate 40 includes a first pressing plate 41 and a second pressing plate 42.
  • the first pressing plate 41 is mounted on the first fixing frame, and is simultaneously rotated and slidably connected with the first fixing frame 31, 31A, 31B, 31C. At the same time, the first pressing plate 41 is also simultaneously slidably and rotatably connected with the first main swing arm 21, 21A, 21B and 21C and the third main swing arm 27.
  • the first fixing frame 31, 31A, 31B, 31C rotates relative to the base 10
  • the first pressing plate 41 is driven to rotate relative to the base 10, and rotate and slide relative to the first fixing frame 31, and rotate and slide relative to the first main swing arm 21, 21A, 21B and 21C.
  • the second pressing plate 42 is mounted on the second fixing frame 32, and is simultaneously rotated and slidably connected with the second fixing frame 32, 32A, 32B, 32C. At the same time, the second pressing plate 42 is also simultaneously slidably and rotatably connected with the second main swing arm 24, 24A, 24B and 24C and the fourth main swing arm 28.
  • the second fixing frame 32, 32A, 32B, 32C rotates relative to the base 10
  • the second pressing plate 42 is driven to rotate relative to the base 10, and rotate and slide relative to the second fixing frame 32, and rotate and slide relative to the second main swing arm 24, 24A, 24B and 24C.
  • the main swing arm 20 of this embodiment is connected to the fixing frame and the pressing plate at the same time, and the fixing frame 30 and the pressing plate 40 can jointly drive the main swing arm 20 to rotate relative to the base 10.
  • the main swing arm 20 of this embodiment also takes into account the role of the pressing plate swing arm.
  • the rotating mechanism 100 also includes a pressing plate swing arm.
  • One end of the pressing plate swing arm is mounted on the base 10 and is rotatably connected to the base 10, and the other end is mounted on the pressing plate 40 and is rotatably and slidably connected to the pressing plate 40.
  • the pressing plate 40 rotates relative to the base 10
  • the pressing plate swing arm is driven to rotate relative to the base 10. That is to say, the pressure plate swing arm and the main swing arm 20 are two types of swing arms that are separately arranged.
  • the synchronization assembly 50 is mounted on the base 10 and is slidably connected to the fixed frame 30. In this embodiment, there are three synchronization assemblies 50.
  • the four synchronization assemblies 50 are respectively a first synchronization assembly 501, a second synchronization assembly 502 and a third synchronization assembly 503.
  • the first synchronization assembly 501 includes a first synchronization swing arm 51, a second synchronization swing arm 52, a synchronization gear 53 and a damping member 60.
  • the first synchronization swing arm 51 and the second synchronization swing arm 52 are respectively arranged on opposite sides of the synchronization gear 53 in the X direction, and mesh with the synchronization gear 53, and are hinged with the damping member 60.
  • the damping member 60 and the synchronization gear 53 are both mounted on the base 10 and can rotate relative to the base 10.
  • the first synchronization swing arm 51 is located on the same side as the first main swing arm 21, is spaced apart from the first main swing arm 21 and the third main swing arm 27, and is slidably connected to the first fixed frame 31 in the first rotating assembly 101.
  • the second synchronous swing arm 52 is located on the same side as the second main swing arm 24, is spaced apart from the second main swing arm 24 and the fourth main swing arm 28, and is slidably connected to the second fixed frame 32 in the first rotating assembly 101.
  • the first rotating assembly 101 When the first rotating assembly 101 rotates relative to the base 10, it drives the first synchronous swing arm 51 to rotate, thereby driving the synchronous gear 53 to rotate, so as to drive the second synchronous swing arm 52 to rotate, thereby realizing the synchronous rotation of the rotating mechanism 100.
  • the first synchronous swing arm 51 and the second synchronous swing arm 52 rotate relative to the base 10, they abut the damping member 60, so that the damping member 60 generates elastic force, and in turn acts on the first synchronous swing arm 51 and the second synchronous swing arm 52, thereby providing damping force for the rotating mechanism 100 and providing a damping feel for the user.
  • the second synchronous assembly 502 and the third synchronous assembly 503 can be the same or similar components, symmetrical or partially symmetrical structures, or different structures as the first synchronous assembly 501.
  • the structure of the second synchronous assembly 502 is a mirror-symmetrical structure with the first synchronous assembly 501.
  • the second synchronous assembly 502 is mounted on the base 10 and is slidably connected to the fixed frame 30A in the second rotating assembly 102.
  • the structure of the third synchronous assembly 503 is a mirror-symmetrical structure with the first synchronous assembly 501.
  • the third synchronous assembly 503 is mounted on the base 10 and is slidably connected to the fixed frame 30C in the fourth rotating assembly 104.
  • the synchronous swing arms in the first synchronous assembly 501, the second synchronous assembly 502 and the third synchronous assembly 503 also function as damping swing arms.
  • the damping member 60 acts on the synchronous swing arms, the synchronous swing arms have a damping force.
  • the rotating mechanism 100 further includes an auxiliary damping assembly 70.
  • the auxiliary damping assembly 70 includes an auxiliary damping member 71, a first damping swing arm 72 and a second damping swing arm 73.
  • the auxiliary damping member 71 has the same or similar structure as the damping member 60.
  • the auxiliary damping member 71 is mounted on the base 10.
  • the first damping swing arm 72 and the second damping swing arm 73 are respectively arranged on opposite sides of the auxiliary damping member 71 in the X direction and are hinged to the auxiliary damping member 71.
  • the first damping swing arm 72 is slidably connected to the first fixed frame 31B in the third rotating assembly 103.
  • the second damping swing arm 73 is slidably connected to the second fixed frame 32B in the third rotating assembly 103.
  • first fixed frame 31B rotates relative to the base 10
  • second damping swing arm 73 drives the first damping swing arm 72 to rotate relative to the base 10 and resists the auxiliary damping member 71, so that the auxiliary damping member 71 generates elastic force, which in turn acts on the first damping swing arm 72.
  • the second fixing frame 32B rotates relative to the base 10
  • the second damping swing arm 73 is driven to rotate relative to the base 10 and abut the auxiliary damping member 71 , so that the auxiliary damping member 71 generates elastic force, which in turn acts on the second damping swing arm 73 , thereby further providing damping force for the rotating mechanism 100 .
  • FIG. 7 is a partial structural diagram of the base 10 in the rotating mechanism 100 shown in FIG. 5 .
  • the base 10 is in the shape of an elongated strip.
  • the length direction of the base 10 is parallel to the Y direction.
  • the base 10 includes a shaft cover 11, a bracket 12 and a support plate 13.
  • the shaft cover 11, the bracket 12 and the support plate 13 are stacked in sequence and fixedly connected to each other.
  • the shaft cover 11 includes an outer surface 111 and an inner surface 112.
  • the outer surface 111 and the inner surface 112 are arranged opposite to each other and are respectively located on opposite sides of the shaft cover 11 in the thickness direction (Z direction).
  • the bracket 12 includes a plate 121 and a stopper 123.
  • the stopper 123 includes a first stopper 124 and a second stopper 125.
  • the multiple first stoppers 124 are spaced apart along the Y direction.
  • the plate body 121 is on one side in the X direction.
  • a plurality of second stoppers 125 are arranged at intervals along the Y direction on the other side of the plate body 121 in the X direction.
  • the bracket 12 includes a plurality of sub-brackets 12.
  • the plurality of sub-brackets 12 are arranged at intervals along the Y direction on the inner surface 112 of the shaft cover 11 and are fixedly connected to the shaft cover 11.
  • the bracket 12 may also be an integrated structure.
  • the support plate 13 is a long strip plate structure.
  • the support plate 13 includes a support plate body 14 and a guide rail portion 17.
  • the guide rail portion 17 is fixedly connected to the support plate body 14.
  • the guide rail portion 17 is used to install the main swing arm 20 so that the main swing arm 20 slides and rotates along the guide rail portion 17.
  • the support plate body 14 includes a top surface 141, a bottom surface 142, a first side surface 143 and a second side surface 144.
  • the top surface 141 and the bottom surface 142 are arranged opposite to each other and are respectively located on opposite sides of the Z direction.
  • the first side surface 143 and the second side surface 144 are arranged opposite to each other and are respectively located on opposite sides of the X direction, and are connected between the top surface 141 and the bottom surface 142.
  • the top surface 141 is provided with an escape groove 145.
  • the escape groove 145 is formed by the first side surface 143 and the second side surface 144 being bent and recessed toward the center of the top surface 141 in the X direction respectively.
  • the escape groove 145 is used to avoid the display screen 300.
  • the bent portion of the display screen 300 is at least partially located in the escape groove 145 to avoid undesirable phenomena such as creases when the display screen 300 is bent, which helps to extend the service life of the display screen 300.
  • the support plate body 14 is provided with a first notch 15 and a second notch 16.
  • the first notch 15 and the second notch 16 are spaced and arranged oppositely along the X direction.
  • the first notch 15 is provided on the first side surface 143 and passes through the top surface 141 and the bottom surface 142.
  • the first notch 15 includes a first inner wall 151 and two second inner walls 154.
  • the two second inner walls 154 are arranged oppositely along the Y direction, and the first inner wall 151 is connected between the two second inner walls 154.
  • the first inner wall 151 includes a first arc surface 152 and a first stop surface 153.
  • the first arc surface 152 includes two sub-arc surfaces.
  • the second notch 16 is symmetrically arranged with respect to the reference plane P with respect to the first notch 15.
  • the second notch 16 is arranged on the second side surface 144 and passes through the top surface 141 and the bottom surface 142.
  • the second notch 16 includes a third inner wall 161 and two fourth inner walls 164.
  • the two fourth inner walls 164 are arranged opposite to each other along the Y direction, and the third inner wall 161 is connected between the two fourth inner walls 164.
  • the third inner wall 161 includes a second arc surface 162 and a third stop surface 163.
  • the third stop surface 163 is located between the two sub-arc surfaces of the second arc surface 162.
  • the third stop surface 163 faces the second side surface 144.
  • the third stop surface 163 is a plane, and the plane where the third stop surface 163 is located intersects with the X direction. In this embodiment, the third stop surface 163 is perpendicular to the X direction. The third stop surface 163 is used to stop with the second main swing arm 24.
  • the guide rail portion 17 includes a first slide rail 171 and a first guide rail 172.
  • the first slide rail 171 and the first guide rail 172 are both arranged on the inner wall of the first notch 15.
  • Each first slide rail 171 is fixed to a second inner wall 154 and extends toward the first notch 15.
  • the two first slide rails 171 are arranged opposite to each other and spaced apart along the Y direction.
  • the top surface of the first slide rail 171 is flush with the top surface 141, and is used to jointly support the display screen 300.
  • the bottom surface of the first slide rail 171 is arc-shaped, and is used to cooperate with the first main swing arm 21.
  • first guide rail 172 is fixedly connected to the first inner wall 151, and the other end extends toward the first side surface 143.
  • first stop surface 153 is located on opposite sides of the first guide rail 172.
  • the top surface of the first guide rail 172 is arc-shaped, and is used to cooperate with the first main swing arm 21.
  • the guide rail portion 17 further includes a second guide rail 173 and a second guide rail 174.
  • the second guide rail 173 and the second guide rail 174 are both arranged on the inner wall of the second notch 16.
  • One second guide rail 173 is fixed to one fourth inner wall 164 and extends toward the inside of the second notch 16.
  • the two second guide rails 173 are arranged opposite to each other and spaced apart along the Y direction.
  • the top surface of the second slide rail 173 is flush with the top surface 141, and they are used together to support the display screen 300.
  • the bottom surface of the second slide rail 173 is arc-shaped, and is used to cooperate with the second main swing arm 24.
  • One end of the second guide rail 174 is fixedly connected to the third inner wall 161, and the other end extends toward the second side surface 144.
  • the top surface 141 of the second guide rail 174 is arc-shaped, and is used to cooperate with the second main swing arm 24.
  • the support plate body 14 is further provided with a first mounting opening 146, a second mounting opening 147, a third notch 148 and a fourth notch 149.
  • the first mounting opening 146 and the second mounting opening 147 are symmetrically arranged relative to the reference plane P.
  • the third notch 148 and the fourth notch 149 are symmetrically arranged relative to the reference plane P.
  • the first mounting opening 146, the third notch 148 and the first notch 15 are arranged side by side and spaced apart along the Y direction
  • the second mounting opening 147, the fourth notch 149 and the second notch 16 are arranged side by side and spaced apart along the Y direction.
  • the structure of the third notch 148 is consistent with that of the first notch 15, and the structure of the fourth notch 149 is consistent with that of the second notch 16.
  • the first mounting opening 146 is used to install the first synchronous swing arm 51, and the second mounting opening 147 is used to install the second synchronous swing arm 52.
  • the guide rail portion 17 further includes a third guide rail 175, a fourth guide rail 176, a third guide rail 177, and a fourth guide rail 178.
  • the structure of the third guide rail 175 is consistent with the structure of the first guide rail 171.
  • the structure of the third guide rail 177 is consistent with the structure of the first guide rail 172.
  • the third guide rail 175 and the third guide rail 177 are fixed to the inner wall of the third notch 148.
  • the structure of the fourth guide rail 176 is consistent with the structure of the second guide rail 173.
  • the structure of the fourth guide rail 178 is consistent with the structure of the second guide rail 174.
  • the fourth guide rail 176 and the fourth guide rail 178 are fixed to the inner wall of the fourth notch 149.
  • the bracket 12 is mounted on the inner surface 112 of the shaft cover 11.
  • the three sub-brackets 12 of the bracket 12 are arranged side by side and at intervals along the Y direction.
  • the support plate 13 is mounted on the side of the bracket 12 facing away from the shaft cover 11, and is clamped between the first stopper 124 and the second stopper 125.
  • the stopper 123 fixes the support plate 13 and can improve the structural stability of the support plate 13.
  • the base 10 also includes a plurality of bolts. The bolts pass through the support plate 13 and the bracket 12, and are fixedly connected to the shaft cover 11, thereby realizing a fixed connection between the support plate 13, the bracket 12 and the shaft cover 11.
  • the inner wall of the first notch 15 and the first sub-bracket 12 enclose a first rotation groove, and the first stop surface 153 is located in the first rotation groove.
  • the first rotation groove is used to install the first main swing arm 21, and the first main swing arm 21 can rotate and slide in the first rotation groove.
  • the inner wall of the second notch 16 and the first sub-bracket 12 enclose a second rotation groove, and the third stop surface 163 is located in the second rotation groove.
  • the second rotation groove is used to install the second main swing arm 24, and the second main swing arm 24 can rotate and slide in the second rotation groove.
  • the first rotation groove and the second rotation groove are arranged oppositely along the width direction (X direction) of the base 10.
  • the inner wall of the third notch 148 and the third sub-bracket 12 enclose a third rotation groove, and the third rotation groove is used to install the third main swing arm 27.
  • the inner wall of the fourth notch 149 and the third sub-bracket 12 enclose a fourth rotation groove, and the fourth rotation groove is used to install the fourth main swing arm 28.
  • Figure 7 only shows the partial structure of the base 10 in the positive direction of the Y-axis.
  • the structure of the base 10 in the negative direction of the Y-axis is the same as or similar to the structure in the positive direction of the Y-axis, and the structure of the base 10 in the negative direction of the Y-axis can be appropriately adjusted according to the structures of the second rotating component 102, the third rotating component 103 and the fourth rotating component.
  • FIG. 8 is an enlarged structural diagram of the main swing arm 20 in the rotating mechanism 100 shown in FIG. 6
  • FIG. 9 is a structural diagram of the main swing arm 20 shown in FIG. 8 at another angle.
  • the main swing arm 20 includes a first main swing arm 21 and a second main swing arm 24.
  • the first main swing arm 21 includes a first rotating body 22, a first swinging body 212 and a first shaft seat 211.
  • the first shaft seat 211 is provided with a shaft hole.
  • the extension direction of the shaft hole of the first shaft seat 211 is parallel to the Y direction.
  • the first shaft seat 211 is used for rotationally connecting with the first main swing arm 21.
  • the first swinging body 212 is in the shape of a flat plate.
  • the first swinging body 212 is provided with a first rotating hole 213.
  • the first rotating hole 213 penetrates the first main swing arm 21 in the width direction (Y direction) of the first main swing arm 21.
  • the direction along the first rotating hole 213 is parallel to the Y direction. That is, the first rotating hole
  • the extending direction of the first shaft seat 213 is consistent with the extending direction of the first shaft seat 211.
  • the first swinging body 212 is fixedly connected between
  • the first rotating body 22 includes a first end 221 and a second end 222.
  • the first end 221 and the second end 222 are arranged opposite to each other and are respectively located on opposite sides of the X direction.
  • the second end 222 of the first rotating body 22 is fixedly connected to an end of the first swinging body 212 facing away from the first shaft seat 211.
  • the first rotating body 22 includes a first supporting surface 223 and a first rotating surface 224.
  • the first rotating surface 224 and the first supporting surface 223 are arranged opposite to each other along the thickness direction of the first main swing arm 21.
  • the first rotating surface 224 is a curved surface for installation in the first rotating groove.
  • the first supporting surface 223 is a plane.
  • the first supporting surface 223 and the top surface 141 of the support plate 13 are roughly in the same plane for jointly supporting the display screen 300.
  • the first supporting surface 223 is provided with first arc grooves 225 on opposite sides of the Y direction.
  • the first arc groove 225 is used for sliding connection with the first slide rail 171.
  • the first rotating body 22 is also provided with a first groove 227 and a first avoidance hole 226.
  • the opening of the first groove 227 is located at the first rotating surface 224 and passes through the first end 221.
  • the first groove 227 includes a first bottom wall 2271 and two first side walls 2272.
  • the two first side walls 2272 are arranged opposite to each other along the Y direction and are fixedly connected to the first bottom wall 2271.
  • the first bottom wall 2271 is arc-shaped and is used for sliding connection with the first guide rail 172.
  • the first side wall 2272 is provided with a step structure.
  • the first main swing arm 21 also includes a second stop surface 23.
  • the second stop surface 23 is located at the step structure of the first side surface 143.
  • the second stop surface 23 faces the first end 221.
  • the second stop surface 23 is the step surface of the step structure provided on the first side wall 2272.
  • the plane where the second stop surface 23 is located intersects with the X direction.
  • the second stop surface 23 is used to stop with the first stop surface 153.
  • the second stop surface 23 is perpendicular to the X direction.
  • the angle between the second stop surface 23 and the X direction may be slightly greater than 90 degrees, or slightly less than 90 degrees.
  • the first avoidance hole 226 is provided on the first bottom wall 2271 and penetrates the first rotating body 22 in the thickness direction of the first rotating body 22. The first avoidance hole 226 is used to avoid the first guide rail 172.
  • the second main swing arm 24 has the same structure as the first main swing arm 21.
  • the second main swing arm 24 includes a second rotating body 25, a second swinging body 242 and a second shaft seat 241.
  • the second swinging body 242 is provided with a second rotating hole 243.
  • the second swinging body 242 is fixedly connected between the second shaft seat 241 and the second rotating body 25.
  • the second rotating body 25 includes a third end 251 and a fourth end 252.
  • the fourth end 252 is fixedly connected to an end of the second swinging body 242 facing away from the second shaft seat 241.
  • the second rotating body 25 includes a second supporting surface 253 and a second rotating surface 254.
  • the second supporting surface 253 is provided with a second arc groove 255, a second groove 257 and a second avoidance hole 256.
  • the second arc groove 255 is used for sliding connection with the second slide rail 173.
  • the opening of the second groove 257 is located on the second rotating surface 254 and passes through the third end 251.
  • the second groove 257 includes a second bottom wall 2571 and two second side walls 2572.
  • the second bottom wall 2571 is used for sliding connection with the second guide rail 174.
  • the second side wall 2572 is provided with a step structure.
  • the second main swing arm 24 also includes a fourth stop surface 26.
  • the fourth stop surface 26 is located at the step structure of the second side wall 2572.
  • the fourth stop surface 26 faces the third end 251.
  • the fourth stop surface 26 is a step surface of the step structure provided on the second side wall 2572.
  • the fourth stop surface 26 is used to stop with the third stop surface 163.
  • the structure of the third main swing arm 27 is the same as that of the first main swing arm 21
  • the structure of the fourth main swing arm 28 is the same as that of the second main swing arm 24 , which will not be described in detail here.
  • Figure 10 is a schematic diagram of a partial structure of the rotating mechanism 100 shown in Figure 5
  • Figure 11 is a schematic diagram of the cross-sectional structure of the rotating mechanism 100 shown in Figure 10 along the A-A direction.
  • "cut along A-A” means cutting along the A-A line and the planes where the arrows at both ends of the A-A line are located. The description of the drawings in the following text can be understood in the same way.
  • the first main swing arm 21 and the second main swing arm 24 are both mounted on the base 10 and are located at opposite ends of the base 10 on the X axis. Both sides. Among them, the first rotating body 22 of the first main swing arm 21 is installed in the first rotating groove. The first rotating surface 224 faces the bracket 12.
  • the first slide rail 171 is located in the first arc groove 225, and the bottom surface of the first slide rail 171 is opposite to and in contact with the bottom wall of the first arc groove 225.
  • the first guide rail 172 is located in the first groove 227, and the top surface of the first guide rail 172 is opposite to and in contact with the first bottom wall 2271 of the first groove 227, and the two opposite side walls of the first guide rail 172 in the Y direction are respectively opposite to the two opposite first side walls 2272 of the first groove 227.
  • the first rotating body 22 can slide and rotate in the first rotating groove along the extension direction of the first slide rail 171 and the first guide rail 172.
  • the second rotating body 25 of the second main swing arm 24 is installed in the second rotating groove.
  • the second rotating surface 254 faces the bracket 12.
  • the second slide rail 173 is located in the second arc groove 255, and the bottom surface of the second slide rail 173 is opposite to and in contact with the bottom wall of the second arc groove 255.
  • the second guide rail 174 is located in the second groove 257, and the top surface 141 of the second guide rail 174 is opposite to and in contact with the second bottom wall 2571 of the second groove 257, and the two opposite side walls of the second guide rail 174 in the Y direction are respectively opposite to the two opposite second side walls 2572 of the second groove 257.
  • the first main swing arm 21 and the second main swing arm 24 rotate in opposite directions relative to the base 10.
  • the first main swing arm 21 rotates in the second direction
  • the second main swing arm 24 rotates in the first direction
  • the first main swing arm 21 rotates in the first direction
  • the second main swing arm 24 rotates in the second direction.
  • the first direction is opposite to the second direction.
  • the first direction is the counterclockwise direction
  • the second direction is the clockwise direction.
  • the first main swing arm 21 rotates clockwise, the first rotating surface 224 slides along the first arc surface 152 toward the direction close to the first rotating groove, the bottom wall of the first arc groove 225 slides along the bottom surface of the first slide rail 171 toward the direction close to the first rotating groove, the first bottom wall 2271 of the first groove 227 slides along the top surface of the first guide rail 172 toward the direction close to the first rotating groove, and the second stop surface 23 moves toward the first stop surface 153 and stops with each other.
  • the second main swing arm 24 rotates counterclockwise, the second rotating surface 254 slides along the second arc surface 162 toward the direction close to the second rotating groove, the bottom wall of the second arc groove 255 slides along the bottom surface of the second slide rail 173 toward the direction close to the second rotating groove, the second bottom wall 2571 of the second groove 257 slides along the top surface 141 of the second guide rail 174 toward the direction close to the second rotating groove, and the fourth stop surface 26 moves toward the third stop surface 163 and stops each other, so that the rotating mechanism 100 is in a flattened state.
  • the first main swing arm 21 and the second main swing arm 24 are unfolded relative to the base 10, and the end of the first guide rail 172 facing away from the first inner wall 151 is located in the first avoidance hole 226, and the end of the second guide rail 174 facing away from the third inner wall 161 is located in the second avoidance hole 256.
  • the first support surface 223, the second support surface 253 and the top surface 141 of the support plate 13 are roughly in the same plane and are used together to support the display screen 300.
  • the second stop surface 23 is opposite to the first stop surface 153 and is locked with each other.
  • the second stop surface 23 and the first stop surface 153 can be in contact with each other or can be against each other.
  • the fourth stop surface 26 is opposite to the third stop surface 163 and is locked with each other.
  • the fourth stop surface 26 and the third stop surface 163 can be in contact with each other or can be against each other.
  • the first main swing arm 21 rotates counterclockwise, the first rotating body 22 rotates and slides along the first slide rail 171 and the first guide rail 172 in a direction away from the first rotating groove, the second stop surface 23 moves in a direction away from the first stop surface 153 and unlocks with the first stop surface 153.
  • the second main swing arm 24 rotates clockwise, the second rotating body 25 rotates and slides along the second slide rail 173 and the second guide rail 174 in a direction away from the second rotating groove, the fourth stop surface 26 moves in a direction away from the third stop surface 163 and unlocks with the third stop surface 163, and the first main swing arm 24 rotates clockwise. 21 and the second main swing arm 24 are folded relative to each other, so that the rotating mechanism 100 is in a folded state.
  • the rotating mechanism 100 when the rotating mechanism 100 is in the flattened state, the user will apply a force toward the base 10 to the main swing arm 20 during use, and this force makes the main swing arm 20 have a tendency to move toward the base 10 along the width direction (X direction) of the base 10. This tendency is the virtual position when the rotating mechanism 100 is in the flattened state.
  • the main swing arm 20 still has room to move toward the base 10
  • the main swing arm 20 will continue to move toward the base 10 along the X direction, that is, the rotating mechanism 100 has a large virtual position, which will affect the user's experience.
  • the main swing arm 20 after the main swing arm 20 continues to move toward the base 10 along the X direction, it will squeeze the display screen 300, resulting in redundancy, reverse arching, etc.
  • the “redundancy” mentioned here refers to the phenomenon that the display screen 300 is wrinkled when it is squeezed from the opposite sides along the X direction toward the middle. “Reverse arching” means that the display screen 300 is bent away from the base 10.
  • the second stop surface 23 and the first stop surface 153 abut against each other, so that when the rotating mechanism 100 is in the flattened state, the second stop surface 23 can prevent the first main swing arm 21 from moving along the X direction toward the base 10, that is, the first main swing arm 21 and the base 10 are stopped in the X direction, thereby reducing or even avoiding the virtual position of the rotating mechanism 100 in the flattened state, improving the user's use experience; at the same time, it can also avoid the redundancy and anti-arch of the display screen 300, and improve the service life of the display screen 300.
  • the rotating mechanism 100 when the rotating mechanism 100 is in the flattened state, the first main swing arm 21 and the base 10 are also stopped in the clockwise direction, thereby preventing the first main swing arm 21 from further rotating clockwise, preventing the foldable electronic device 1000 from being over-unfolded and causing damage to the display screen 300.
  • the fourth stop surface 26 and the third stop surface 163 abut against each other, so that when the rotating mechanism 100 is in the flattened state, the second main swing arm 24 cannot move along the X direction toward the base 10, thereby further reducing or even avoiding the virtual position of the rotating mechanism 100 in the flattened state, thereby improving the user experience.
  • the directions of the first stop surface 153, the second stop surface 23, the third stop surface 163 and the fourth stop surface 26 are all perpendicular to the X direction, and the direction of the abutment force between the first stop surface 153 and the second stop surface 23, and the direction of the abutment force between the third stop surface 163 and the fourth stop surface 26 are all parallel or substantially parallel to the direction in which the user squeezes the virtual position. That is, the stop force direction of the rotating mechanism 100 is parallel to the direction in which the user squeezes the virtual position when using the foldable electronic device 1000, thereby improving the stop accuracy of the rotating mechanism 100 and improving the user experience.
  • the rotating mechanism 100 in this embodiment achieves stoppage through abutment between surfaces, which can increase the stop area, thereby further improving the stop accuracy of the rotating structure, and further improving the user experience.
  • the squeezing force of the user on the rotating mechanism 100 can be transferred to the first stop surface 153 and the third stop surface 163.
  • the reaction of the base 10 to the first main swing arm 21 is located at the second stop surface 23, and the reaction force to the second main swing arm 24 is located at the fourth stop surface 26, avoiding the weak area of the main swing arm 20, thereby optimizing the force of the main swing arm 20, avoiding damage to the main swing arm 20 caused by the force of the base 10 on the main swing arm 20, and improving the reliability and service life of the rotating mechanism 100.
  • the first main swing arm 21 can rotate relative to the base 10 along the first guide rail 172, thereby improving the stability of the rotation of the first main swing arm 21, preventing the first main swing arm 21 from deviating from the preset path when rotating, and further improving the stopping effect and stopping force between the second stop surface 23 and the first stop surface 153. Precision.
  • the second main swing arm 24 can rotate relative to the base 10 along the second guide rail 174, thereby improving the rotation stability of the second main swing arm 24, preventing the second main swing arm 24 from deviating from the preset path when rotating, and further improving the stopping effect and stopping precision between the fourth stop surface 26 and the third stop surface 163.
  • the first stop surface 153 and the second stop surface 23 are interference fit.
  • the interference amount of the first stop surface 153 and the second stop surface 23 is 0 to 0.1 mm. In some embodiments, the interference amount of the first stop surface 153 and the second stop surface 23 is 0 to 0.04 mm.
  • the "interference fit” mentioned here means that the first stop surface 153 and the second stop surface 23 abut and squeeze each other.
  • the deformation amount caused by the difference in squeezing between the first stop surface 153 and the second stop surface 23 is the interference amount.
  • the “interference amount” here is the sum of the deformation amount of the first stop surface 153 and the deformation amount of the second stop surface 23.
  • a compression fit between the first stop surface 153 and the second stop surface 23 can be achieved, thereby further preventing the first main swing arm 21 from moving along the X direction toward the base 10, and further improving the stopping accuracy of the rotating mechanism 100, reducing the virtual position of the rotating mechanism 100 in the flattened state, improving the reliability of the display screen 300 of the foldable electronic device 1000, and improving the user experience.
  • the third stop surface 163 and the fourth stop surface 26 are interference fit.
  • the interference amount of the third stop surface 163 and the fourth stop surface 26 is 0 to 0.1 mm. In some embodiments, the interference amount of the third stop surface 163 and the fourth stop surface 26 is 0 to 0.04 mm.
  • the “interference amount” here is the sum of the deformation amount of the third stop surface 163 and the deformation amount of the fourth stop surface 26.
  • the rotating mechanism 100 includes a wear-resistant layer.
  • the wear-resistant layer can be a metal material or a polymer material.
  • the wear-resistant layer is polytetrafluoroethylene.
  • the first stop surface 153, the second stop surface 23, the third stop surface 163 and the fourth stop surface 26 are all provided with a wear-resistant layer.
  • the wear-resistant layer is formed by a physical vapor deposition method. In other embodiments, the wear-resistant layer can also be formed by other coating processes.
  • the wear resistance of the stop surface can be improved, thereby improving the stopping effect between the first stop surface 153 and the second stop surface 23, and the stopping effect between the third stop surface 163 and the fourth stop surface 26, thereby improving the service life of the rotating mechanism 100 and improving the stopping accuracy of the rotating mechanism 100 during its entire life.
  • the wear-resistant layer may be disposed on one of the first stop surface 153, the second stop surface 23, the third stop surface 163, and the fourth stop surface 26.
  • the wear-resistant layer may also be disposed on two or three of the first stop surface 153, the second stop surface 23, the third stop surface 163, and the fourth stop surface 26.
  • Figure 12 is a partial structural schematic diagram of the rotating mechanism 100 shown in Figure 5 in the second embodiment
  • Figure 13 is a structural schematic diagram of the bracket 12 in the rotating mechanism 100 shown in Figure 12
  • Figure 14 is a schematic diagram of the decomposed structure of the bracket 12 shown in Figure 13 at another angle.
  • the first stop surface 153 of the support plate 13 is located between the two sub-arc surfaces of the first arc surface 152 and faces the first side surface 143.
  • the first stop surface 153 and the first guide rail 172 are arranged side by side along the Z direction, and the first stop surface 153 is located on the positive direction side of the Z axis of the first guide rail 172.
  • the top surface of the first guide rail 172 is a plane and is aligned with the top surface of the bracket 12. 141, and are used to jointly support the display screen 300.
  • the bottom surface of the first guide rail 172 is arc-shaped, and is used to cooperate with the first main swing arm 21.
  • the bottom surface of the first guide rail 172 is connected to the first stop surface 153.
  • the bottom surface of the first slide rail 171 is a plane, and is flush with the bottom surface 142 of the bracket 12. Alternatively, there can also be a small height difference between the bottom surface of the first slide rail 171 and the bottom surface 142 of the support plate 13.
  • the top surface of the first slide rail 171 is arc-shaped, and forms a first sliding groove 131.
  • the first sliding groove 131 is used to install the first main swing arm 21.
  • the third stop surface 163 is located between the two sub-arc surfaces of the second arc surface 162 and faces the second side surface 144.
  • the third stop surface 163 and the second guide rail 174 are arranged side by side along the Z direction, and the third stop surface 163 is located on the positive direction side of the Z axis of the second guide rail 174.
  • the top surface of the second guide rail 174 is a plane and is flush with the top surface 141 of the bracket 12, and is used to jointly support the display screen 300.
  • the bottom surface of the second guide rail 174 is an arc, which is used to cooperate with the second main swing arm 24.
  • the bottom surface of the second guide rail 174 is connected to the third stop surface 163.
  • the bottom surface of the second slide rail 173 is a plane and is flush with the bottom surface 142 of the bracket 12.
  • the top surface of the second slide rail 173 is an arc, and forms a second sliding groove 132.
  • the second sliding groove 132 is used to install the second main swing arm 24.
  • Figure 15 is an enlarged structural schematic diagram of the main swing arm 20 in the rotating mechanism 100 shown in Figure 12
  • Figure 16 is an enlarged structural schematic diagram of the main swing arm 20 shown in Figure 15 at another angle.
  • the main swing arm 20 in the rotating mechanism 100 shown in this embodiment is different from the main swing arm 20 shown in FIG. 8 in that:
  • the first main swing arm 21 further includes a first slider 214.
  • the two first sliders 214 are respectively fixed to opposite sides of the first rotating body 22 along the Y direction.
  • the top surface of the first slider 214 is flush with the first supporting surface 223, and is used to jointly support the display screen 300.
  • the bottom surface of the first slider 214 is arc-shaped, and is used to cooperate with the first slide rail 171.
  • the first end 221 is provided with a first avoidance gap 228.
  • the first avoidance gap 228 runs through the first supporting surface 223 and the first rotating surface 224.
  • the second stop surface 23 is provided on the bottom surface of the first avoidance gap 228 and faces the first end 221.
  • the second stop surface 23 is perpendicular to the X direction. In some other embodiments, the angle between the second stop surface 23 and the X direction may also be slightly greater than 90 degrees, or slightly less than 90 degrees. It can be understood that the second stop surface 23 is the bottom wall surface of the first avoidance gap 228.
  • the second stop surface 23 is used to stop with the first stop surface 153.
  • the first rotating body 22 is provided with a first groove 227. The opening of the first groove 227 is located on the first supporting surface 223 and communicates with the first avoidance gap 228.
  • the first bottom wall 2271 of the first groove 227 is arc-shaped. The first bottom wall 2271 is connected to the second stop surface 23.
  • the first groove 227 is used to install the first guide rail 172.
  • the second main swing arm 24 further includes two second sliders 244.
  • the two second sliders 244 are respectively fixed to opposite sides of the second rotating body 25 along the Y direction.
  • the top surface of the second slider 244 is flush with the second supporting surface 253, and is used to jointly support the display screen 300.
  • the bottom surface of the second slider 244 is arc-shaped, and is used to cooperate with the second slide rail 173.
  • the third end 251 is provided with a second avoidance gap 258.
  • the second avoidance gap 258 passes through the second supporting surface 253 and the second rotating surface 254.
  • the second avoidance gap 258 includes a fourth stop surface 26.
  • the fourth stop surface 26 faces the third end 251.
  • the fourth stop surface 26 is used to stop with the third stop surface 163.
  • the second rotating body 25 is provided with a second groove 257.
  • the opening of the second groove 257 is located on the second supporting surface 253 and is connected to the second avoidance gap 258.
  • the second bottom wall 2571 of the second groove 257 is arc-shaped.
  • the second bottom wall 2571 is connected to the fourth stop surface 26.
  • the second groove 257 is used for installing the second guide rail 174 .
  • Fig. 17 is a schematic diagram of the cross-sectional structure of the rotating mechanism 100 shown in Fig. 12 along the B-B direction.
  • the first main swing arm 21 and the second main swing arm 24 are both mounted on the base 10 and are located on opposite sides of the base 10 on the X axis.
  • the first rotating body 22 of the first main swing arm 21 is mounted in the first rotating groove.
  • the first rotating surface 224 faces the first inner wall 151 and can slide along the first arc surface 152 of the first inner wall 151.
  • the first sliding block 214 is located in the first sliding groove. 131, and can slide along the first sliding groove 131.
  • the first guide rail 172 is located in the first groove 227, and the bottom surface of the first guide rail 172 is opposite to and in contact with the first bottom wall 2271 of the first groove 227.
  • the second rotating body 25 of the second main swing arm 24 is installed in the second rotating groove.
  • the second rotating surface 254 faces the third inner wall 161 and can slide along the second arc surface 162 of the third inner wall 161.
  • the second slider 244 is located in the second sliding groove 132 and can slide along the second sliding groove 132.
  • the second guide rail 174 is located in the second groove 257, and the bottom surface of the second guide rail 174 is opposite to and in contact with the second bottom wall 2571 of the second groove 257.
  • the first main swing arm 21 rotates clockwise, the first rotating surface 224 slides along the first arc surface 152 toward the direction close to the first rotating groove, the first sliding slider 214 slides along the first sliding groove 131 toward the direction close to the first rotating groove, the first bottom wall 2271 of the first groove 227 slides along the bottom surface of the first guide rail 172 toward the direction close to the first guide rail 172, and the second stop surface 23 moves toward the first stop surface 153 and stops with the first stop surface 153.
  • the second main swing arm 24 rotates counterclockwise, the second rotating surface 254 slides along the second arc surface 162 toward the second rotating groove, the second sliding block 244 slides along the second sliding groove 132 toward the second rotating groove, the second bottom wall 2571 of the second groove 257 slides along the bottom surface of the second guide rail 174 toward the second guide rail 174, the fourth stop surface 26 moves toward the third stop surface 163, and stops with the third stop surface 163, so that the rotating mechanism 100 is in a flattened state.
  • the first main swing arm 21 and the second main swing arm 24 are relatively unfolded, the first slider 214 is located in the first sliding groove 131, the first guide rail 172 is located in the first groove 227, the second slider 244 is located in the first sliding groove 131, and the second guide rail 174 is located in the second groove 257.
  • the first support surface 223, the top surface of the first guide rail 172, the second support surface 253, the top surface of the second guide rail 174 and the top surface 141 of the support plate 13 are roughly in the same plane and are used together to support the display screen 300.
  • the second stop surface 23 is opposite to the first stop surface 153 and interlocks with each other.
  • the second stop surface 23 and the first stop surface 153 can be in contact or can be against each other.
  • the fourth stop surface 26 is opposite to the third stop surface 163 and interlocks with each other.
  • the fourth stop surface 26 and the third stop surface 163 can be in contact or can be against each other.
  • the second stop surface 23 is set on the first main swing arm 21, and when the rotating mechanism 100 is in the flattened state, the second stop surface 23 and the first stop surface 153 are abutted against each other, so that when the rotating mechanism 100 is in the flattened state, the second stop surface 23 can prevent the first main swing arm 21 from moving along the X direction toward the base 10, thereby reducing or even avoiding the virtual position of the rotating mechanism 100 in the flattened state, thereby improving the user's usage experience; at the same time, it can also avoid redundancy and anti-arching of the display screen 300, thereby improving the service life of the display screen 300, and can also prevent the foldable electronic device 1000 from being over-unfolded and causing damage to the display screen 300.
  • the second stop surface 23 is arranged at the end of the first main swing arm 21, which can increase the area of the second stop surface 23, thereby increasing the contact area between the second stop surface 23 and the first stop surface 153, and increasing the stop area between the first main swing arm 21 and the base 10, thereby further improving the stopping effect and stopping accuracy of the first main swing arm 21 and the base 10, and further reducing or even avoiding the virtual position when the rotating mechanism 100 is in the flattened state.
  • the fourth stop surface 26 and the third stop surface 163 abut against each other, so that when the rotation mechanism 100 is in the flattened state, the second main swing arm 24 cannot continue to move along the X direction toward the base 10.
  • the movement can further reduce or even avoid the virtual position of the rotating mechanism 100 in the flattened state, thereby improving the user experience.
  • Figure 18 is a partial structural schematic diagram of the rotating mechanism 100 shown in Figure 5 in the third embodiment
  • Figure 19 is a decomposed structural schematic diagram of the rotating mechanism 100 shown in Figure 18
  • Figure 20 is a decomposed structural schematic diagram of the rotating mechanism 100 shown in Figure 18 at another angle.
  • the base 10 in the rotating mechanism 100 shown in this embodiment is different from the base 10 shown in FIG. 7 in that:
  • the first inner wall 151 of the support plate 13 includes a first arc surface 152 and a first stop surface 153.
  • the first stop surface 153 includes a first sub-stop surface 155 and a third sub-stop surface 156.
  • the first arc surface 152 includes two sub-arc surfaces. The two sub-arc surfaces are respectively located on opposite sides of the first inner wall 151 in the Y direction.
  • the third sub-stop surface 156 and the first sub-stop surface 155 are both connected between the two sub-arc surfaces of the first arc surface 152.
  • the third sub-stop surface 156 and the first sub-stop surface 155 are arranged side by side along the Z direction.
  • the first sub-stop surface 155 is located on the negative Z-axis side of the third sub-stop surface 156.
  • the third sub-stop surface 156 and the first sub-stop surface 155 are both planes and face the first side surface 143.
  • the plane where the first sub-stop surface 155 is located and the plane where the third sub-stop surface 156 is located both intersect with the X direction.
  • the first sub-stop surface 155 and the third stop surface 163 are both perpendicular to the X direction.
  • the top surface of the first guide rail 172 has a height difference with the top surface 141 of the bracket 12, and the top surface of the first guide rail 172 is located in the positive direction of the Z axis of the top surface 141.
  • the first sub-stop surface 155 is connected between the top surface 141 and the top surface of the first guide rail 172.
  • the third sub-stop surface 156 is located on opposite sides of the first guide rail 172 in the Y direction, and is fixedly connected to the side surface of the first guide rail 172 in the Y direction.
  • the second inner wall 154 further includes a second arc surface 162 and a third stop surface 163.
  • the third stop surface 163 includes a fifth sub-stop surface 165 and a seventh sub-stop surface 166.
  • the second arc surface 162 includes two sub-arc surfaces. The two sub-arc surfaces of the second arc surface 162 are respectively located on opposite sides of the second inner wall 154 in the Y direction.
  • the seventh sub-stop surface 166 and the fifth sub-stop surface 165 are both connected between the two sub-arc surfaces of the second arc surface 162.
  • the seventh sub-stop surface 166 and the fifth sub-stop surface 165 are arranged side by side along the Z direction.
  • the fifth sub-stop surface 165 is located on the negative Z-axis side of the seventh sub-stop surface 166.
  • the seventh sub-stop surface 166 and the fifth sub-stop surface 165 are both planes and face the second side surface 144.
  • the plane where the seventh sub-stop surface 166 is located and the plane where the fifth sub-stop surface 165 is located are perpendicular to the X direction.
  • the top surface of the second guide rail 174 has a height difference with the top surface 141 of the bracket 12, and the top surface of the second guide rail 174 is located in the positive direction of the Z axis of the top surface 141.
  • the fifth sub-stop surface 165 is connected between the top surface 141 and the top surface of the second guide rail 174.
  • the seventh sub-stop surface 166 is located on opposite sides of the second guide rail 174 in the Y direction, and is fixedly connected to the side surface of the second guide rail 174 in the Y direction.
  • the main swing arm 20 of the rotating mechanism 100 shown in this embodiment is different from the main swing arm 20 shown in FIG. 8 in that:
  • the first end 221 of the first main swing arm 21 is provided with a first avoidance gap 228.
  • the first avoidance gap 228 penetrates the first support surface 223 and the first rotating surface 224.
  • the second stop surface 23 includes a second sub-stop surface 231 and a fourth sub-stop surface 232.
  • the second sub-stop surface 231 is provided on the bottom wall surface of the first avoidance gap 228.
  • the second sub-stop surface 231 faces the first end 221.
  • the second sub-stop surface 231 is perpendicular to the X direction. It can be understood that the second sub-stop surface 231 is the bottom wall surface of the first avoidance gap 228.
  • the opening of the first groove 227 is located at the first rotating surface 224 and is connected to the first avoidance gap 228.
  • the fourth sub-stop surface 232 is provided on the first side wall 2272 of the first groove 227 and faces the first end 221.
  • the structure of the fourth sub-stop surface 232 in this embodiment is the same as the structure of the second stop surface 23 in the embodiment shown in FIG. 8.
  • the first bottom wall 2271 of the first groove 227 is arc-shaped.
  • the first bottom wall 2271 is connected to the second sub-stop surface 231. That is, the second sub-stop surface 231 is connected between the first bottom wall 2271 and the first supporting surface 223.
  • the second sub-stop surface 231 is used to stop with the first sub-stop surface 155 provided in the first rotation groove.
  • the third end 251 of the second main swing arm 24 is provided with a second avoidance notch 258.
  • the second avoidance notch 258 penetrates the second support surface 253 and the second rotation surface 254.
  • the fourth stop surface 26 includes a sixth sub-stop surface 261 and an eighth sub-stop surface 262.
  • the sixth sub-stop surface 261 is provided on the bottom wall surface of the second avoidance notch 258.
  • the sixth sub-stop surface 261 faces the third end 251.
  • the sixth sub-stop surface 261 is perpendicular to the X direction.
  • the opening of the second groove 257 is located on the second rotation surface 254 and communicates with the second avoidance notch 258.
  • the eighth sub-stop surface 262 is provided on the second side wall 2572 of the second groove 257 and faces the third end 251.
  • the structure of the eighth sub-stop surface 262 in this embodiment is the same as that of the fourth stop surface 26 in the embodiment shown in FIG. 8.
  • the second bottom wall 2571 of the second groove 257 is arc-shaped.
  • the second bottom wall 2571 is connected to the sixth sub-stop surface 261. That is, the sixth sub-stop surface 261 is connected between the second bottom wall 2571 and the second support surface 253.
  • the sixth sub-stop surface 261 is used to stop with the fifth sub-stop surface 165 provided on the second rotation groove.
  • Figure 21 is a schematic diagram of the cross-sectional structure of the rotating mechanism 100 shown in Figure 18 along the C-C direction.
  • the first main swing arm 21 and the second main swing arm 24 are both mounted on the base 10 and are respectively located on opposite sides of the base 10 on the X axis.
  • the first rotating body 22 of the first main swing arm 21 is mounted on the first rotating groove.
  • the first rotating surface 224 faces the bracket 12.
  • the first slide rail 171 is located in the first arc groove 225, and the bottom surface of the first slide rail 171 is opposite to and in contact with the bottom wall of the first arc groove 225.
  • the first guide rail 172 is located in the first groove 227, and the top surface of the first guide rail 172 is opposite to and in contact with the first bottom wall 2271 of the first groove 227, and the two opposite side walls of the first guide rail 172 in the Y direction are respectively opposite to the two opposite first side walls 2272 of the first groove 227.
  • the first rotating body 22 can slide and rotate in the first rotating groove along the extension direction of the first slide rail 171 and the first guide rail 172.
  • the second rotating body 25 of the second main swing arm 24 is installed in the second rotating groove.
  • the second rotating surface 254 faces the bracket 12.
  • the second slide rail 173 is located in the second arc groove 255, and the bottom surface of the second slide rail 173 is opposite to and in contact with the bottom wall of the second arc groove 255.
  • the second guide rail 174 is located in the second groove 257, and the top surface of the second guide rail 174 is opposite to and in contact with the second bottom wall 2571 of the second groove 257, and the two opposite side walls of the second guide rail 174 in the Y direction are respectively opposite to the two opposite second side walls 2572 of the second groove 257.
  • the first main swing arm 21 rotates clockwise, the first rotating surface 224 slides along the first arc surface 152 toward the direction close to the first rotating groove, the bottom wall of the first arc groove 225 slides along the bottom surface of the first slide rail 171 toward the direction close to the first rotating groove, the first bottom wall 2271 of the first groove 227 slides along the top surface of the first guide rail 172 toward the direction close to the first guide rail 172, the fourth sub-stop surface 232 moves toward the third sub-stop surface 156 and stops with each other, and the second sub-stop surface 231 moves toward the first sub-stop surface 155 and stops with each other.
  • the second main swing arm 24 rotates counterclockwise, the second rotating surface 254 slides along the second arc surface 162 toward the direction close to the second rotating groove, the bottom wall of the second arc groove 255 slides along the bottom surface of the second slide rail 173 toward the direction close to the second rotating groove, the second bottom wall 2571 of the second groove 257 slides along the top surface 141 of the second guide rail 174 toward the direction close to the second guide rail 174, the eighth sub-stop surface 262 moves toward the seventh sub-stop surface 166 and stops with each other, the sixth sub-stop surface 261 moves toward the fifth sub-stop surface 165 and stops with each other, so that the rotating mechanism 100 is in a flattened state.
  • the first main swing arm 21 and the second main swing arm 24 are relatively unfolded, the end of the first guide rail 172 facing away from the first inner wall 151 is located in the first avoidance hole 226, and the end of the second guide rail 174 facing away from the third inner wall 161 is located in the second avoidance hole 256.
  • the first support surface 223, the second support surface 253 and the top surface 141 of the support plate 13 are roughly in the same plane and are used together to support the display screen 300.
  • the fourth sub-stop surface 232 is opposite to the third sub-stop surface 156 and is locked with each other.
  • the fourth sub-stop surface 232 and the third sub-stop surface 156 can be in direct contact or can be against each other.
  • the second sub-stop surface 231 is opposite to the first sub-stop surface 155 and locked with each other.
  • the second sub-stop surface 231 and the first sub-stop surface 155 can be in contact with each other or can be against each other.
  • the eighth sub-stop surface 262 is opposite to the seventh sub-stop surface 166 and locked with each other.
  • the eighth sub-stop surface 262 and the seventh sub-stop surface 166 can be in contact with each other or can be against each other.
  • the sixth sub-stop surface 261 is opposite to the fifth sub-stop surface 165 and locked with each other.
  • the sixth sub-stop surface 261 and the fifth sub-stop surface 165 can be in contact with each other or can be against each other.
  • the first main swing arm 21 and the base 10 are stopped not only by the fourth sub-stop surface 232 and the third sub-stop surface 156, but also by the second sub-stop surface 231 and the first sub-stop surface 155, so that the first main swing arm 21 can be further prevented from continuing to move along the X direction toward the base 10, thereby improving the stopping effect and stopping accuracy, further reducing or even avoiding the virtual position of the rotating mechanism 100 in the flattened state, and improving the user's usage experience; at the same time, it can also further avoid redundancy and anti-arching of the display screen 300, thereby improving the service life of the display screen 300, and avoiding excessive unfolding of the foldable electronic device 1000 and damage to the display screen 300.
  • the second main swing arm 24 and the base 10 are stopped not only by the seventh sub-stop surface 166 and the eighth sub-stop surface 262, but also by the fifth sub-stop surface 165 and the sixth sub-stop surface 261, thereby further preventing the second main swing arm 24 from continuing to move along the X direction toward the base 10, improving the stopping effect and stopping accuracy, further reducing or even avoiding the virtual position of the rotating mechanism 100 in the flattened state, and improving the user experience.
  • Figure 22 is a partial structural schematic diagram of the rotating mechanism 100 shown in Figure 5 in the fourth embodiment
  • Figure 23 is a schematic diagram of the decomposed structure of the rotating mechanism 100 shown in Figure 22
  • Figure 24 is a schematic diagram of the decomposed structure of the rotating mechanism 100 shown in Figure 22 at another angle.
  • the base 10 in the rotating mechanism 100 shown in this embodiment is different from the base 10 shown in FIG. 7 in that:
  • the first inner wall 151 of the support plate 13 includes a first stop surface 153.
  • the first stop surface 153 includes a third sub-stop surface 156 and a first sub-stop surface 155.
  • the first sub-stop surface 155 includes two parts. The two parts of the first sub-stop surface 155 are respectively located on opposite sides of the first inner wall 151 in the Y direction.
  • the third sub-stop surface 156 is connected between the two parts of the first sub-stop surface 155.
  • the third sub-stop surface 156 and the first sub-stop surface 155 are both planes, and both face the first side surface 143.
  • the first sub-stop surface 155 and the third sub-stop surface 156 are both perpendicular to the X direction.
  • the second inner wall 154 includes a third stop surface 163.
  • the third stop surface 163 includes a seventh sub-stop surface 166 and a fifth sub-stop surface 165.
  • the fifth sub-stop surface 165 includes two parts. The two parts of the fifth sub-stop surface 165 are respectively located on opposite sides of the second inner wall 154 in the Y direction.
  • the seventh sub-stop surface 166 is connected between the two parts of the fifth sub-stop surface 165.
  • the seventh sub-stop surface 166 and the fifth sub-stop surface 165 are both planes and both face the second side surface 144.
  • the fifth sub-stop surface 165 and the seventh sub-stop surface 166 are both perpendicular to the X direction.
  • the main swing arm 20 of the rotating mechanism 100 shown in this embodiment is different from the main swing arm 20 shown in FIG. 8 in that:
  • the second stop surface 23 includes a second sub-stop surface 231 and a fourth sub-stop surface 232.
  • the second sub-stop surface 231 is disposed on a side of the first end 221 away from the second end 222.
  • the second sub-stop surface 231 is a plane, and the plane where the second sub-stop surface 231 is located is perpendicular to the X direction. It can be understood that the second sub-stop surface 231 is the first rotating body 22
  • the fourth sub-stop surface 232 is provided on the first side wall 2272 of the first groove 227 and faces the first end 221.
  • the structure of the fourth sub-stop surface 232 in this embodiment is the same as the structure of the second stop surface 23 in the embodiment shown in FIG. 8 .
  • the orientation of the second sub-stop surface 231 is the same as the orientation of the fourth sub-stop surface 232.
  • the second sub-stop surface 231 is used to stop with the first sub-stop surface 155
  • the fourth sub-stop surface 232 is used to stop with the third sub-stop surface 156. That is, the second sub-stop surface 231 and the fourth sub-stop surface 232 are used together to resist the base 10.
  • the fourth stop surface 26 of the second main swing arm 24 includes a sixth sub-stop surface 261 and an eighth sub-stop surface 262.
  • the sixth sub-stop surface 261 is provided on the bottom wall surface of the second avoidance gap 258.
  • the sixth sub-stop surface 261 is provided on the side of the second end 222 away from the second end 222.
  • the sixth sub-stop surface 261 is a plane, and the plane where the sixth sub-stop surface 261 is located is perpendicular to the X direction. It can be understood that the sixth sub-stop surface 261 is the end surface of the second rotating body 25 in the negative direction of the X axis.
  • the eighth sub-stop surface 262 is provided on the second side wall 2572 of the second groove 257 and faces the third end 251.
  • the structure of the eighth sub-stop surface 262 in this embodiment is the same as the structure of the fourth stop surface 26 in the embodiment shown in FIG. 8.
  • the orientation of the sixth sub-stop surface 261 is the same as the orientation of the eighth sub-stop surface 262.
  • the sixth sub-stop surface 261 is used to stop with the fifth sub-stop surface 165
  • the eighth sub-stop surface 262 is used to stop with the seventh sub-stop surface 166 . That is, the sixth sub-stop surface 261 and the eighth sub-stop surface 262 are used together to abut against the base 10 .
  • Figure 25 is a schematic diagram of the cross-sectional structure of the rotating mechanism 100 shown in Figure 22 along the D-D direction.
  • the first main swing arm 21 and the second main swing arm 24 are both mounted on the base 10 and are respectively located on opposite sides of the base 10 on the X axis. Among them, the first rotating body 22 of the first main swing arm 21 is mounted in the first rotating groove. The first rotating surface 224 faces the bracket 12.
  • the first slide rail 171 is located in the first arc groove 225, and the bottom surface of the first slide rail 171 is opposite to and in contact with the bottom wall of the first arc groove 225.
  • the first guide rail 172 is located in the first groove 227, and the top surface of the first guide rail 172 is opposite to and in contact with the first bottom wall 2271 of the first groove 227, and the opposite two side walls of the first guide rail 172 in the Y direction are respectively facing the opposite two first side walls 2272 of the first groove 227.
  • the first rotating body 22 can slide and rotate in the first rotating groove along the extension direction of the first slide rail 171 and the first guide rail 172.
  • the second rotating body 25 of the second main swing arm 24 is installed in the second rotating groove.
  • the second rotating surface 254 faces the bracket 12.
  • the second slide rail 173 is located in the second arc groove 255, and the bottom surface of the second slide rail 173 is opposite to and in contact with the bottom wall of the second arc groove 255.
  • the second guide rail 174 is located in the second groove 257, and the top surface of the second guide rail 174 is opposite to and in contact with the second bottom wall 2571 of the second groove 257, and the two opposite side walls of the second guide rail 174 in the Y direction are respectively facing the two opposite second side walls 2572 of the second groove 257.
  • the second main swing arm 24 rotates counterclockwise, the bottom wall of the second arc groove 255 slides along the bottom surface of the second slide rail 173 toward the second rotating groove, the second bottom wall 2571 of the second groove 257 slides along the top surface 141 of the second guide rail 174 toward the second guide rail 174, the eighth sub-stop surface 262 moves toward the seventh sub-stop surface 166 and stops with each other, the sixth sub-stop surface 261 moves toward the fifth sub-stop surface 165 and stops with each other, so that the rotating mechanism 100 is in a flattened state.
  • the end of the first guide rail 172 facing away from the first inner wall 151 is located at the first avoidance position.
  • one end of the second guide rail 174 facing away from the third inner wall 161 is located in the second avoidance hole 256.
  • the first support surface 223, the second support surface 253 and the top surface 141 of the support plate 13 are roughly in the same plane and are used to support the display screen 300 together.
  • the fourth sub-stop surface 232 is opposite to the third sub-stop surface 156 and is locked with each other.
  • the fourth sub-stop surface 232 and the third sub-stop surface 156 can be in contact or can be against each other.
  • the second sub-stop surface 231 is opposite to the first sub-stop surface 155 and is locked with each other.
  • the second sub-stop surface 231 and the first sub-stop surface 155 can be in contact or can be against each other.
  • the eighth sub-stop surface 262 is opposite to the seventh sub-stop surface 166 and is locked with each other.
  • the eighth sub-stop surface 262 and the seventh sub-stop surface 166 can be in contact or can be against each other.
  • the sixth sub-stop surface 261 and the fifth sub-stop surface 165 are opposite to each other and locked with each other.
  • the sixth sub-stop surface 261 and the fifth sub-stop surface 165 may just contact or resist each other.
  • the first main swing arm 21 and the support plate 13 are stopped not only by the third sub-stop surface 156 and the fourth sub-stop surface 232, but also by the first sub-stop surface 155 and the second sub-stop surface 231, so that the first main swing arm 21 can be further prevented from continuing to move along the X direction toward the base 10, thereby improving the stopping effect and stopping accuracy, further reducing or even avoiding the virtual position of the rotating mechanism 100 in the flattened state, and improving the user's usage experience; at the same time, it can also further avoid redundancy and anti-arching of the display screen 300, improve the service life of the display screen 300, and avoid excessive unfolding of the foldable electronic device 1000 and damage to the display screen 300.
  • the second main swing arm 24 and the support plate 13 are stopped not only by the seventh sub-stop surface 166 and the eighth sub-stop surface 262, but also by the fifth sub-stop surface 165 and the sixth sub-stop surface 261, thereby further preventing the second main swing arm 24 from continuing to move along the X direction toward the base 10, improving the stopping effect and stopping accuracy, further reducing or even avoiding the virtual position of the rotating mechanism 100 in the flattened state, and improving the user experience.
  • the area of the first sub-stop surface 155 can be increased, so that the stop area of the first main swing arm 21 and the support plate 13 can be increased, and then the stopping effect and stopping accuracy of the first main swing arm 21 and the support plate 13 can be further improved, and the virtual position of the rotating mechanism 100 when it is in the flattened state can be further reduced or even avoided.
  • the structure of the main swing arm 20 in any rotating component 1 in the rotating mechanism 100 shown in Figure 5 can be the same as the structure of any main swing arm 20 in the above four embodiments, and the structure of the support plate 13 can be adjusted according to the structure of the main swing arm 20 adopted.
  • FIG. 26 is a schematic structural diagram of the fixing frame 30 in the first rotating assembly 101 of the rotating mechanism 100 shown in FIG. 5 .
  • the fixing frame 30 in the first rotating assembly 101 includes a first fixing frame 31 and a second fixing frame 32.
  • the first fixing frame 31 is a long strip plate structure with thickness.
  • the first fixing frame 31 is provided with a first guide slot 311, a first shaft hole 312, a first slot 313 and a third shaft hole 314.
  • the first guide slot 311 is arc-shaped.
  • the first guide slot 311 is used for sliding connection with the first pressing plate 41.
  • the three first guide slots 311 are arranged along the first fixing frame 101.
  • the first axial hole 312 is arranged at intervals in the length direction (Y direction) of the fixed frame 31.
  • the extension direction of the first axial hole 312 is parallel to the X direction.
  • the first axial hole 312 is used for rotational connection with the first main swing arm 21 in the first rotating assembly 101.
  • the third axial hole 314 is arranged at intervals from the first axial hole 312.
  • the extension direction of the third axial hole 314 is parallel to the X direction.
  • the third axial hole 314 is used for rotational connection with the third main swing arm 27 in the first rotating assembly 101.
  • the first slide groove 313 is provided on the top surface of the first fixed frame 31.
  • the extension direction of the first slide groove 313 is parallel to the width direction (X direction) of the first fixed frame 31.
  • the first slide groove 313 is used for sliding connection with the first synchronous swing arm 51.
  • the second fixed frame 32 is a symmetrical structure with the first fixed frame 31, and the second fixed frame 32 is mirror-symmetrical with the first fixed frame 31 about the reference plane P.
  • the second fixed frame 32 is provided with a second guide slot 321, a second shaft hole 322, a second slot 323 and a fourth shaft hole 324.
  • the second guide slot 321 is used for sliding connection with the second pressing plate 42.
  • the three second guide slots 321 are arranged at intervals along the length direction (Y direction) of the second fixed frame 32.
  • the extension direction of the second shaft hole 322 is parallel to the X direction.
  • the second shaft hole 322 is used for rotational connection with the second main swing arm 24 in the first rotating assembly 101.
  • the fourth shaft hole 324 is arranged at intervals with the second shaft hole 322.
  • the extension direction of the fourth shaft hole 324 is parallel to the X direction.
  • the fourth shaft hole 324 is used for rotational connection with the fourth main swing arm 28 in the first rotating assembly 101.
  • the second slot 323 is provided on the top surface of the second fixed frame 32.
  • the extending direction of the second slide groove 323 is parallel to the width direction (X direction) of the second fixing frame 32.
  • the second slide groove 323 is used for sliding connection with the second synchronous swing arm 52.
  • FIG. 27 is a partial structural diagram of the pressure plate 40 in the rotating mechanism 100 shown in FIG. 5 .
  • the pressing plate 40 includes a first pressing plate 41 and a second pressing plate 42.
  • the first pressing plate 41 includes a first body 411 and a first guide slider 412.
  • the first body 411 is a long strip plate-like structure.
  • the first guide slider 412 is arc-shaped.
  • the structure of the first guide slider 412 matches the structure of the first guide slot 311.
  • the first guide slider 412 is fixed to the bottom surface of the first body 411.
  • the first guide slider 412 is used to be installed in the first guide slot 311 to achieve rotation and sliding connection with the first fixed frame 31.
  • the three first guide sliders 412 are arranged at intervals along the length direction (Y direction) of the first body 411.
  • the three first guide sliders 412 are arranged in a one-to-one correspondence with the three first guide slots 311.
  • the first body 411 is provided with a first sliding hole 413 and a third sliding hole 414.
  • the first sliding hole 413 is provided on the bottom surface of the first body 411.
  • the depth direction of the first sliding hole 413 is parallel to the Y direction.
  • the first sliding hole 413 is used to realize the rotation and sliding connection between the first pressing plate 41 and the first main swing arm 21.
  • the first sliding hole 413 is in the shape of a curved water drop.
  • the shape of the first sliding hole 413 mentioned here refers to the shape of the cross section of the first sliding hole 413. Among them, the cross-sectional direction is perpendicular to the depth direction of the first sliding hole 413.
  • the first sliding hole 413 may also be a long strip or other special-shaped structures.
  • the shape of the first sliding hole 413 is not specifically limited here, as long as the first sliding hole 413 can realize the rotation and sliding of the first pressing plate 41 and the first main swing arm 21.
  • the shape of the third sliding hole 414 is the same as or similar to that of the first sliding hole 413.
  • the third sliding hole 414 is spaced apart from the first sliding hole 413.
  • the third sliding hole 414 is used to achieve sliding and rotational connection between the first pressing plate 41 and the third main swing arm 27.
  • the second pressing plate 42 and the first pressing plate 41 are symmetrical structures, and the second pressing plate 42 and the first pressing plate 41 are mirror-symmetrical about the reference plane P.
  • the second pressing plate 42 includes a second body 421 and a second guide slider 422.
  • the second body 421 is a long strip plate-like structure.
  • the second guide slider 422 is arc-shaped.
  • the structure of the second guide slider 422 matches the structure of the second guide slot 321.
  • the second guide slider 422 is fixed to the bottom surface of the second body 421.
  • the second guide slider 422 is used to be installed in the second guide slot 321 to achieve rotation and sliding connection with the second fixed frame 32.
  • the three second guide sliders 422 are arranged at intervals along the length direction (Y direction) of the second body 421.
  • the three second guide sliding blocks 422 are arranged in one-to-one correspondence with the three second guide sliding grooves 321 .
  • the second body 421 is provided with a second sliding hole 423 and a fourth sliding hole 424.
  • the second sliding hole 423 is provided on the bottom surface of the second body 421.
  • the depth direction of the second sliding hole 423 is parallel to the Y direction.
  • the second sliding hole 423 is used to realize the rotation and sliding connection between the second main swing arm 24 and the second pressure plate 42.
  • the second sliding hole 423 is a curved water drop shape.
  • the shape of the fourth sliding hole 424 is the same as or similar to the shape of the second sliding hole 423.
  • the fourth sliding hole 424 is spaced apart from the second sliding hole 423.
  • the fourth sliding hole 424 is used to realize the sliding and rotation connection between the second pressure plate and the third main swing arm 27.
  • the first fixed frame 31, the first pressure plate 41, the first main swing arm 21 and the third main swing arm 27 are all located on the positive side of the X-axis of the base 10.
  • the first pressure plate 41 is mounted on the first fixed frame 31 and can slide and rotate relative to the first fixed frame 31.
  • the bottom surface of the first pressure plate 41 faces the top surface of the first fixed frame 31.
  • the first guide slider 412 is located in the first guide slot 311 and can slide along the first guide slot 311.
  • the first rotating body 22 of the first main swing arm 21 is mounted in the first rotating slot, and the first shaft seat 211 faces the first fixed frame 31.
  • the rotating mechanism 100 also includes a first rotating shaft a and a second rotating shaft b.
  • the first rotating shaft a is mounted in the first shaft hole 312 and can rotate in the first shaft hole 312.
  • the second rotating shaft b is mounted in the first sliding hole 413.
  • the second rotating shaft b can rotate around the axial direction of the second rotating shaft b in the first sliding hole 413, and can also slide in the first sliding hole 413.
  • the third main swing arm 27 is spaced apart from the first main swing arm 21.
  • the third main swing arm 27 is rotatably connected to the first fixing frame 31, and is rotatably and slidably connected to the first pressing plate 41.
  • the third main swing arm 27 is installed in the third rotating groove, and can rotate and slide in the third rotating groove.
  • the connection method of the third main swing arm 27 with the first fixing frame 31 and the first pressing plate 41 can refer to the first main swing arm 21, and will not be described here.
  • the first fixing frame 31 is fixedly connected to the first housing 210.
  • the second fixed frame 32, the second pressure plate 42, the second main swing arm 24 and the fourth main swing arm 28 are all located on the negative side of the X-axis of the base 10.
  • the second pressure plate 42 is mounted on the second fixed frame 32 and can slide and rotate relative to the second fixed frame 32.
  • the bottom surface of the second pressure plate 42 faces the top surface of the second fixed frame 32.
  • the second guide slider 422 is located in the second guide slot 321 and can slide along the second guide slot 321.
  • the second rotating body 25 of the second main swing arm 24 is mounted in the second rotating slot, and the second shaft seat 241 faces the second fixed frame 32.
  • the rotating mechanism 100 also includes a third rotating shaft c and a fourth rotating shaft d.
  • the third rotating shaft c is mounted in the second shaft hole 322 and can rotate in the second shaft hole 322.
  • the third rotating shaft c is mounted in the second sliding hole 423, and the second rotating shaft can rotate around the axial direction of the third rotating shaft c in the second sliding hole 423, and can also slide in the second sliding hole 423.
  • the fourth main swing arm 28 is spaced apart from the second main swing arm 24.
  • the fourth main swing arm 28 is rotatably connected to the second fixing frame 32, and is rotatably and slidably connected to the second pressing plate 42.
  • the fourth main swing arm 28 is installed in the fourth rotation groove, and can rotate and slide in the fourth rotation groove.
  • the connection method of the fourth main swing arm 28, the second fixing frame 32 and the second pressing plate 42 can all refer to the second main swing arm 24, and will not be repeated here.
  • the second fixing frame 32 is fixedly connected to the second housing 220.
  • the rotation of the first housing 210 relative to the base 10 can drive the first fixing frame 31 to rotate relative to the base 10, thereby driving the first pressing plate 41 to rotate relative to the base 10, and driving the first pressing plate 41 to rotate and slide relative to the first fixing frame 31 along the first guide slot 311.
  • the rotation of the first fixing frame 31 relative to the base 10 also drives the first main swing arm 21 to rotate, and makes the first rotating body 22 rotate and slide in the first rotating slot, the first rotating shaft a rotates in the first shaft hole 312, and the second rotating shaft b rotates and slides in the first sliding hole 413.
  • the rotation of the second housing 220 relative to the base 10 can drive the second fixing frame 32 to rotate relative to the base 10, thereby driving the second pressing plate 42 to rotate relative to the base 10, and driving the second pressing plate 42 to rotate and slide relative to the second fixing frame 32 along the second guide slot 321.
  • the rotation of the second fixing frame 32 relative to the base 10 also drives the second main swing arm 24 to rotate, and makes the second rotating body 25 rotate and slide in the second rotating slot, the third rotating shaft c rotates in the second shaft hole 322, and the fourth rotating shaft d rotates and slides in the second sliding hole 423.
  • the first housing 210 and the second housing 220 rotate in opposite directions
  • the first fixing frame 31 and the second fixing frame 32 rotate in opposite directions
  • the first pressing plate 41 and the second pressing plate 42 rotate in opposite directions
  • the first main swing arm 21 and the second main swing arm 24 rotate in opposite directions.
  • the rotating mechanism 100 rotates from the flattened state to the folded state
  • the first fixing frame 31, the first pressing plate 41 and the first main swing arm 21 rotate counterclockwise
  • the second fixing frame 32, the second pressing plate 42 and the second main swing arm 24 rotate clockwise
  • the rotating mechanism 100 rotates from the folded state to the flattened state
  • the first fixing frame 31, the first pressing plate 41 and the first main swing arm 21 rotate clockwise
  • the second fixing frame 32, the second pressing plate 42 and the second main swing arm 24 rotate counterclockwise.
  • the connection strength between the fixing frame 30 and the shell can be increased, thereby improving the rotation stability of the foldable electronic device 1000.
  • the first pressing plate 41 and the second pressing plate 42 are both arranged opposite to the display screen 300. That is, the orthographic projection of the display screen 300 on the first pressing plate 41 and the second pressing plate 42 completely covers the first pressing plate 41 and the second pressing plate 42, or partially covers the first pressing plate 41 and the second pressing plate 42.
  • the first pressing plate 41, the second pressing plate 42 and the supporting plate 13 jointly support the display screen 300, thereby increasing the stability of the connection of the display screen 300 to ensure a good display of the display screen 300.
  • the first pressing plate 41 is rotated by the rotation of the first fixing frame 31, and the second pressing plate 42 is rotated by the rotation of the second fixing frame 32, so as to realize the folding and unfolding of the display screen 300.
  • the first pressing plate 41 can slide in an arc shape relative to the first fixing frame 31; by providing a guide slot on the second pressing plate 42 and an arc-shaped guide slider on the second fixing frame 32, the second pressing plate 42 can slide in an arc shape relative to the second fixing frame 32.
  • the first pressing plate 41 and the second pressing plate 42 rotate relative to each other, and the first pressing plate 41 slides in an arc shape relative to the first fixing frame 31, and the second pressing plate 42 slides in an arc shape relative to the second fixing frame 32, so that the angle between the first pressing plate 41 and the second pressing plate 42 can be adjusted, so as to adapt to the folding angle of the foldable part of the display screen 300, so as to avoid the first pressing plate 41 and the second pressing plate 42 from squeezing the display screen 300 when the rotating mechanism 100 is in the folded state.
  • the angle between the first fixing frame 31 and the second fixing frame 32 is different from the angle between the first pressing plate 41 and the second pressing plate 42, and the angle between the first pressing plate 41 and the second pressing plate 42 can be adjusted according to the bending angle of the display screen 300 to adapt to the bending of the display screen 300.
  • FIG. 28 is a schematic diagram of a partial exploded structure of the rotating mechanism 100 shown in FIG. 6 .
  • the synchronization assembly 50 includes a first synchronization swing arm 51, a second synchronization swing arm 52, a synchronization gear 53 and a damping member 60.
  • the synchronization gear 53 and the damping member 60 are both mounted on the base 10.
  • the first synchronization swing arm 51 and the second synchronization swing arm 52 are respectively located on opposite sides of the base 10 in the X direction, and mesh with the synchronization gear 53 and the damping member 60 at the same time.
  • the first synchronization swing arm 51 rotates, it drives the synchronization gear 53 to rotate, thereby driving the second synchronization swing arm 52 to rotate, so as to achieve the synchronous movement of the first synchronization swing arm 51 and the second synchronization swing arm 52.
  • first synchronization swing arm 51 and the second synchronization swing arm 52 rotate, they abut against the damping member 60, so that the damping member 60 generates a damping force, thereby providing a damping force for the rotation of the rotating mechanism 100 and providing a damping feel for the user.
  • the synchronization assembly 50 further includes a fixing rod 54.
  • the two fixing rods 54 are respectively a first fixing rod 541 and a second fixing rod 542.
  • the first fixing rod 541 and the second fixing rod 542 are arranged at intervals along the X direction.
  • the extension directions of the first fixing rod 541 and the second fixing rod 542 are both parallel to the Y direction, and are fixedly connected to the base 10.
  • the damping member 60 includes a baffle 61, a first damping plate 62, a second damping plate 63 and a damping spring 64.
  • the first damping plate 62 is provided with a first hinge seat 621 and a second hinge seat 622.
  • the first hinge seat 621 includes a plurality of protrusions and a plurality of recesses. The plurality of protrusions and the plurality of recesses are alternately arranged to form an annular structure.
  • the second hinge seat 622 has the same or similar structure as the first hinge seat 621.
  • the first hinge seat 621 and the second hinge seat 622 are spaced apart along the X direction.
  • the second damping plate 63 is provided with a third hinge seat 631 and a fourth hinge seat 632.
  • the third hinge seat 631 and the fourth hinge seat 632 are spaced apart along the X direction.
  • the third hinge seat 631 and the fourth hinge seat 632 have the same or similar structure as the first hinge seat 621.
  • the baffle plate 61, the first damping plate 62 and the second damping plate 63 are all sleeved on the fixed rod 54 and are arranged in sequence along the Y direction.
  • the first damping plate 62 is located between the baffle plate 61 and the second damping plate 63.
  • the baffle plate 61 and the second damping plate 63 are both fixedly connected to the fixed rod 54.
  • the first damping plate 62 is slidably connected to the fixed rod 54 and can move along the length direction of the fixed rod 54.
  • the first hinge seat 621 and the second hinge seat 622 face the second damping plate 63, and the third hinge seat 631 and the fourth hinge seat 632 face the first damping plate 62.
  • the damping spring 64 is installed between the baffle plate 61 and the first damping plate 62, and is fixedly connected to the baffle plate 61 and the first damping plate 62.
  • the two synchronous gears 53 are respectively a third gear 531 and a fourth gear 532.
  • the third gear 531 and the fourth gear 532 are arranged side by side along the X direction and mesh with each other.
  • the synchronous gear 53 is arranged between the two fixing rods 54 and is rotatably connected to the second damping plate 63.
  • the first synchronous swing arm 51 includes a first sliding body 511, a first gear 512 and a first rotating column 513.
  • the first sliding body 511 is a plate-like structure.
  • the first sliding body 511 is used to be installed in the first sliding groove 313 so that the first synchronous swing arm 51 is slidably connected to the first fixed frame 31.
  • the first rotating column 513 and the first gear 512 are arranged side by side along the width direction of the first sliding body 511, and are both connected to one end of the first synchronous swing arm 51.
  • a first hinged body 514 is provided at one end of the first rotating column 513 facing away from the first gear 512.
  • a third hinged body 515 is provided at one end of the first gear 512 facing away from the first rotating column 513.
  • the structure of the first hinged body 514 matches the structure of the first hinge seat 621.
  • the structure of the third hinged body 515 matches the structure of the third hinge seat 631.
  • the first rotating column 513 and the first gear 512 are both hollow structures, and the central axis of the first rotating column 513 and the first gear 512 coincide.
  • the first synchronous swing arm 51 is mounted on the first fixed rod 541.
  • the first gear 512 and the first rotating column 513 are sleeved on the outer periphery of the first fixed rod 541 and are located between the first damping baffle 61 and the second damping baffle 61.
  • the first gear 512 is meshed with the third gear 531
  • the first hinge body 514 is hinged with the first hinge seat 621
  • the third hinge body 515 is hinged with the third hinge seat 631.
  • the second synchronous swing arm 52 includes a second sliding body 521, a second gear 522 and a second rotating column 523.
  • the second sliding body 521 is a plate-like structure.
  • the second sliding body 521 is used to be installed in the second sliding groove 323 so that the second synchronous swing arm 52 is slidably connected to the second fixing frame 32.
  • the second rotating column 523 and the second gear 522 are arranged side by side along the width direction of the second sliding body 521, and are both connected to one end of the second synchronous swing arm 52.
  • a second hinge 524 is provided at one end of the second rotating column 523 facing away from the second gear 522.
  • a fourth hinge 525 is provided at one end of the second gear 522 facing away from the second rotating column 523.
  • the structure of the second hinge 524 matches the structure of the second hinge seat 622, and the structure of the fourth hinge 525 matches the structure of the fourth hinge seat 632.
  • the second rotating column 523 and the second gear 522 are both hollow structures, and the central axis of the second rotating column 523 and the second gear 522 coincide.
  • the second synchronous swing arm 52 is mounted on the second fixed rod 542.
  • the second gear 522 and the second rotating column 523 are sleeved on the outer periphery of the second fixed rod 542 and are located between the first damping baffle 61 and the second damping baffle 61.
  • the second gear 522 is meshed with the fourth gear 532
  • the second hinge body 524 is hinged with the second hinge seat 622
  • the fourth hinge body 525 is hinged with the fourth hinge seat 632Articulated.
  • the first synchronization assembly 501 is installed on the base 10, the damping member 60 and the synchronization gear 53 are located in the base 10, the rotating rod is fixedly connected to the base 10, and the first synchronization swing arm 51 and the second synchronization swing arm 52 are respectively located on opposite sides of the base 10 in the X direction.
  • the first synchronization swing arm 51 is located in the positive direction of the X axis of the base 10
  • the second synchronization swing arm 52 is located in the negative direction of the X axis of the base 10.
  • the first sliding body 511 is installed in the first slide groove 313 of the first fixed frame 31 and can slide in the first slide groove 313.
  • the second sliding body 521 is installed in the second slide groove 323 of the second fixed frame 32 and can slide in the second slide groove 323.
  • the rotating mechanism 100 When the rotating mechanism 100 is in the flattened state, the first synchronous swing arm 51 and the second synchronous swing arm 52 are relatively unfolded, that is, the angle between the first synchronous swing arm 51 and the second synchronous swing arm 52 is approximately 180°.
  • the rotating mechanism 100 When the rotating mechanism 100 is in the folded state, the first synchronous swing arm 51 and the second synchronous swing arm 52 are relatively folded. That is, the first synchronous swing arm 51 and the second synchronous swing arm 52 are arranged approximately in parallel.
  • first fixed frame 31 When the first fixed frame 31 rotates relative to the base 10, it drives the first sliding body 511 to rotate relative to the base 10 and slide in the first slide groove 313.
  • first sliding body 511 When the first sliding body 511 rotates relative to the base 10, it drives the first rotating column 513 and the first gear 512 to rotate around the first rotating rod.
  • the rotation of the first gear 512 drives the third gear 531 to rotate.
  • the third gear 531 drives the fourth gear 532 to rotate.
  • the fourth gear 532 drives the second gear 522 to rotate around the second rotating rod.
  • the rotation of the second gear 522 drives the second sliding body 521 to rotate relative to the base 10, and makes the second sliding body 521 slide in the second slide groove 323, and drives the second fixed frame 32 to rotate relative to the base 10, thereby realizing the synchronous rotation of the first synchronous swing arm 51 and the second synchronous swing arm 52, and the synchronous rotation of the first fixed frame 31 and the second fixed frame 32.
  • the rotation directions of the first synchronous swing arm 51 and the second synchronous swing arm 52 are opposite, and the rotation directions of the first fixed frame 31 and the second fixed frame 32 are opposite.
  • first synchronous swing arm 51 When the first synchronous swing arm 51 rotates around the first rotating rod, it drives the first hinge 514 and the third hinge 515 to rotate, the third hinge 515 repeatedly abuts against the third hinge seat 631, and the first hinge 514 repeatedly abuts against the first hinge seat 621.
  • second synchronous swing arm 52 rotates around the second rotating rod, it drives the second hinge 524 and the fourth hinge 525 to rotate, the fourth hinge 525 repeatedly abuts against the fourth hinge seat 632, and the second hinge 524 repeatedly abuts against the second hinge seat 622.
  • the first hinge 514 and the second hinge 524 repeatedly push the first damping baffle 61 to move toward the damping spring 64, and repeatedly squeeze the damping spring 64, so that the damping spring 64 generates elastic force.
  • the elastic restoring force of the damping spring 64 acts on the first synchronous swing arm 51 and the second synchronous swing arm 52, thereby providing a damping force for the rotation of the first synchronous swing arm 51 and the second synchronous swing arm 52.
  • the damping force of the first synchronous swing arm 51 acts on the first shell 210 via the first fixed frame 31, and the damping force of the second synchronous swing arm 52 acts on the second shell 220 via the second fixed frame 32, thereby providing a damping feel for the user.
  • the second synchronization swing arm 52 can be driven to rotate through the synchronization gear 53, so that the synchronous rotation of the first synchronization swing arm 51 and the second synchronization swing arm 52 can be achieved, and then the synchronous rotation of the rotating mechanism 100 and the foldable electronic device 1000 can be achieved, so as to facilitate the user's use and enhance the user's experience.
  • the damping member 60 when the first synchronous swing arm 51 and the second synchronous swing arm 52 rotate relative to the base 10, the damping member 60 always presses against the first synchronous swing arm 51 and the second synchronous swing arm 52 to generate a damping force, thereby providing a damping feel for the user and improving the user's experience.

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Abstract

本申请提供一种转动机构和可折叠电子设备。转动机构包括基座、第一主摆臂和第二主摆臂。基座的第一止位面位于基座的第一转动槽内,第一止位面所在的平面以及第一主摆臂的第二止位面均与基座的宽度方向相交。第一主摆臂安装于第一转动槽,第二止位面朝向第一转动槽,且第一主摆臂能够沿第一转动槽转动并滑动。第一主摆臂相对基座展开时,第一止位面与第二止位面相对设置,沿基座的宽度方向,第一主摆臂与基座止位,且第一主摆臂和第二主摆臂能够朝向相互靠近方向转动,以使第一主摆臂相对第二主摆臂折叠。本申请提供的转动机构能够降低可折叠电子设备在展平态的虚位,解决显示屏易于发生冗余和反拱的技术问题。

Description

转动机构和可折叠电子设备
本申请要求于2023年11月21日提交中国专利局、申请号为202311549715.8、申请名称为“转动机构和可折叠电子设备”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电子产品技术领域,尤其涉及一种转动机构和可折叠电子设备。
背景技术
随着科技的发展,电子设备(如手机、平板电脑等)的外观(ID)形态有从直板机往折叠机发展的趋势。可折叠电子设备在打开状态下具有大面积显示屏,充分满足了消费者的视觉体验,在闭合状态下体积小,便于携带。转轴是可折叠电子设备的核心部件,转轴中的主摆臂支撑着中框的运动。现有技术中,可折叠电子设备处于展平状态时,主摆臂具有虚位,会造成显示屏的冗余和反拱,影响用于的使用体验。
发明内容
本申请提供一种转动机构和可折叠电子设备,能够降低可折叠电子设备在展平态的虚位,解决显示屏易于发生冗余和反拱的技术问题。
第一方面,本申请提供一种转动机构。转动机构包括基座、第一主摆臂和第二主摆臂。所述基座设有第一转动槽和第二转动槽,所述第一转动槽和所述第二转动槽沿所述转动机构的宽度方向相对设置。所述基座包括第一止位面,所述第一止位面位于所述第一转动槽内,所述第一止位面所在的平面与所述基座的宽度方向相交。所述第一主摆臂包括第二止位面,所述第二止位面所在的平面与所述基座的宽度方向相交。所述第一主摆臂安装于所述第一转动槽,所述第二止位面朝向所述第一转动槽,且所述第一主摆臂能够沿所述第一转动槽转动并滑动;所述第二主摆臂安装于所述第二转动槽内,且所述第二主摆臂能够沿所述第二转动槽转动并滑动。
所述第一主摆臂相对所述基座展开时,所述第一止位面与所述第二止位面相对设置,沿所述基座的宽度方向,所述第一主摆臂与所述基座止位,且所述第一主摆臂和所述第二主摆臂能够朝向相互靠近方向转动,以使所述第一主摆臂相对所述第二主摆臂折叠。
本实施例中,通过在基座设置第一止位面,第一主摆臂设置第二止位面,且第一主摆臂相对所述基座展开时,第二止位面与第一止位面相对设置,使得第一止位面可以阻止第一主摆臂沿着基座的宽度方向朝向基座方向移动,从而可以减小甚至避免转动机构处于展开状态下的虚位,提升用户的使用体验感;同时,也可以避免显示屏发生冗余和反拱,提升显示屏的使用寿命。
所述基座还包括第三止位面,所述第三止位面位于所述第二转动槽内,所述第三止位面所在的平面与所述基座的宽度方向相交。所述第二主摆臂包括第四止位面,所述第四止位面所在的平面与所述基座的宽度方向相交。所述第二主摆臂安装于所述第二转动槽,所 述第四止位面朝向所述第二转动槽,且所述第二主摆臂能够沿所述第二转动槽转动并滑动。所述第二主摆臂相对所述基座展开时,所述第三止位面与所述第四止位面相对设置,沿所述基座的宽度方向,所述第额主摆臂与所述基座止位。
本实施例中,通过在基座设置第三止位面,第二主摆臂设置第四止位面,且第二主摆臂相对所述基座展开时,第四止位面与第三止位面相对设置,使得第三止位面可以阻止第二主摆臂沿着基座的宽度方向朝向基座方向移动,从而可以进一步减小甚至避免转动机构处于展开状态下的虚位,提升用户的使用体验感。
一种可能的实施方式中,所述第一主摆臂相对所述基座展开时,所述第一止位面与所述第二止位面相互抵持,且所述第一止位面和所述第二止位面之间的抵持力方向与所述基座的宽度方向一致。所述第二主摆臂相对所述基座展开时,所述第四止位面与所述第三止位面相互抵持,且所述第四止位面和所述第三止位面之间的抵持力方向与所述基座的宽度方向一致。
需要说明的是,转动机构处于展开状态时,用户在使用时可能会对主摆臂施加朝向基座方向的作用力,该作用力使得主摆臂具有沿基座的宽度方向朝向基座方向移动的趋势,这种趋势即为转动机构处于展开状态时的虚位。
本实施例中,通过将第一止位面和第二止位面的方向设置为与基座的宽度方向垂直,使得第一止位面与第二止位面之间的抵持力方向与基座的宽度方向一致,从而使得转动机构的止位受力方向与用户在使用可折叠电子设备时挤压虚位的方向平行,从而可以提升转动机构的止位精度,提升用户的使用体验。
一种可能的实施方式中,所述第一转动槽包括第一内壁,所述第一内壁背向所述第二转动槽设置,所述第一内壁包括所述第一止位面。所述基座还包括第一导轨,所述第一导轨固定于所述第一内壁,并朝向背离所述第二转动槽方向延伸,所述第一导轨与所述第一止位面并排设置。所述第一主摆臂包括第一端,所述第一主摆臂设有第一凹槽,所述第一凹槽的开口位于所述第一主摆臂的顶面或底面,且所述第一凹槽贯穿所述第一端。
所述第一主摆臂安装于所述基座时,所述第一端朝向所述第一转动槽,至少部分所述第一导轨位于所述第一凹槽内,且所述第一主摆臂能够沿所述第一导轨在所述第一转动槽内转动并滑动。
本实施例中,通过在基座设置第一导轨,在第一主摆臂设置第一凹槽,并将第一导轨安装于第一凹槽内,使得第一主摆臂可以沿着第一导轨相对基座转动,从而可以提升第一主摆臂转动的稳定性,避免第一主摆臂转动时偏离预设路径,进而可以提升第二止位面与第一止位面之间的止位效果和止位精度。
一种可能的实施方式中,沿所述基座的长度方向,所述第一导轨与所述第一止位面并排设置;所述第一凹槽的开口位于所述第一主摆臂的底面,所述第二止位面设于所述第一凹槽的侧壁,并朝向所述第一端。所述第一主摆臂安装于所述基座时,所述第一导轨位于所述第一凹槽背向所述基座的顶面的一侧,且所述第一导轨的顶面与所述凹槽的底壁面相对并接触。
本实施例中,通过将第一导轨与第一止位面沿基座的长度方向并排设置,并将第二止位面设于第一凹槽的侧壁,使得第一主摆臂沿着第一导轨相对基座转动时,第一止位面能 够沿着第一主摆臂的转动路径朝向第二止位面方向转动,从而可以避免第一主摆臂相对基座展开时第一止位面偏离第二止位面,进而可以提升第二止位面与第一止位面之间的止位效果和止位精度。
一种可能的实施方式中,沿所述基座的厚度方向,所述第一导轨与所述第一止位面并排设置,且所述第一导轨位于所述第一止位面靠近所述基座的顶面的一侧。所述第一凹槽的开口位于所述第一主摆臂的顶面,所述第二止位面设于所述第一端,并连接于所述第一主摆臂的底面和所述第一凹槽的底壁面之间。所述第一主摆臂安装于所述基座时,所述第一导轨位于所述第一凹槽靠近所述基座的顶面的一侧,且所述第一导轨的底面与所述凹槽的底壁面相对并接触。
本实施例中,通过将第二止位面设于第一主摆臂的端部,可以增大第二止位面的面积,从而可以增大第二止位面与第一止位面的接触面积,增大第一主摆臂与基座的止位面积,进而可以进一步提升第一主摆臂与基座的止位效果和止位精度,并进一步减小甚至避免转动机构处于展开状态下的虚位。
一种可能的实施方式中,所述第一止位面包括第一子止位面,沿所述基座的厚度方向,所述第一子止位面与所述第一导轨并排设置,且所述第一子止位面位于所述第一导轨靠近所述基座的顶面的一侧。所述第一凹槽的开口位于所述第一主摆臂的底面,所述第二止位面包括第二子止位面,所述第二子止位面设于所述第一端,并连接于所述第一主摆臂的顶面和所述第一凹槽的底壁面之间。
所述第一主摆臂安装于所述基座时,所述第一导轨位于所述第一凹槽背向所述基座的顶面的一侧,且所述第一导轨的顶面与所述第一凹槽的底壁面相对并接触。所述第一主摆臂相对所述基座展开时,所述第一子止位面与所述第二子止位面相对设置。
本实施例中,通过在第二止位面设置第二子止位面,且第二子止位面设于第一主摆臂的端部,可以增大第二子止位面的面积,从而可以增大第二子止位面与第一子止位面的接触面积,增大第一主摆臂与基座的止位面积,进而可以进一步提升第一主摆臂与基座的止位效果和止位精度,并进一步减小甚至避免转动机构处于展开状态下的虚位。
一种可能的实施方式中,所述第一止位面还包括第三子止位面,沿所述基座的长度方向,所述第三子止位面与所述第一导轨并排设置。所述第一主摆臂还包括第四子止位面,所述第四子止位面设于所述第一凹槽的侧壁,并朝向所述第一端。所述第一主摆臂相对所述基座展开时,所述第三子止位面与所述第四子止位面相对设置。
本实施例中,通过在基座进一步设置第三子止位面,第一主摆臂进一步设置第四子止位面,使得转动机构处于展开状态时,第一主摆臂与基座不仅通过第二子止位面和第一子止位面实现止位,还通过第四子止位面和第三子止位面实现止位,从而可以进一步阻止第一主摆臂沿基座的宽度方向朝向基座方向继续移动,进一步提升止位效果和止位精度,减小甚至避免转动机构处于展开状态下的虚位,提升用户的使用体验感。
一种可能的实施方式中,所述第一止位面包括第一子止位面,沿所述基座的长度方向,所述第一导轨与所述第一子止位面并排设置。所述第二止位面包括第二子止位面,所述第二子止位面设于所述第一主摆臂的一端,并连接于所述第一主摆臂的顶面和所述第一主摆臂的底面之间。所述第一主摆臂相对所述基座展开时,所述第一子止位面与所述第二子止 位面相对设置。
本实施例中,通过在第二止位面设置第二子止位面,且第二子止位面为第一主摆臂的端面,可以进一步增大第二子止位面的面积,从而可以增大第二子止位面与第一子止位面的接触面积,增大第一主摆臂与基座的止位面积,进而可以进一步提升第一主摆臂与基座的止位效果和止位精度,并进一步减小甚至避免转动机构处于展开状态下的虚位。
一种可能的实施方式中,所述第一止位面还包括第三子止位面,沿所述基座的长度方向,所述第三子止位面与所述第一止位面及所述第一导轨并排设置,且所述第三子止位面位于所述第一子止位面和所述第一导轨之间。所述第一凹槽的开口位于所述第一主摆臂的底面;所述第二止位面还包括第四子止位面,所述第四子止位面设于所述第一凹槽的侧壁,并朝向所述第一端。所述第一主摆臂安装于所述基座时,所述第一导轨位于所述第一凹槽背向所述基座的顶面的一侧,且所述第一导轨的顶面与所述第一凹槽的底壁面相对并接触。所述第一主摆臂相对所述基座展开时,所述第三子止位面与所述第四子止位面相对设置。
本实施例中,通过在基座进一步设置第三子止位面,第一主摆臂进一步设置第四子止位面,使得转动机构处于展开状态时,第一主摆臂与基座不仅通过第二子止位面和第一子止位面实现止位,还通过第四子止位面和第三子止位面实现止位,从而可以进一步阻止第一主摆臂沿基座的宽度方向朝向基座方向继续移动,进一步提升止位效果和止位精度,减小甚至避免转动机构处于展开状态下的虚位,提升用户的使用体验感。
一种可能的实施方式中,所述第一止位面与所述第二止位面过盈配合。
需要解释的是,这里所说的“过盈配合”是指,互相抵持并挤压。本实施例中,通过将第一止位面和第二止位面过盈配合,可以实现第一止位面和第二止位面之间的压紧配合,从而可以进一步阻止第一主摆臂沿基座的宽度方向朝向基座方向移动,进而可以进一步提升转动机构的止位精度,减小转动机构处于展开状态的虚位,提升可折叠电子设备的显示屏可靠性,提升用户的使用体验。
一种可能的实施方式中,所述第一止位面与所述第二止位面的过盈量为0mm~0.1mm。
一种可能的实施方式中,所述转动机构还包括耐磨层,所述耐磨层设于所述第一止位面或/和所述第二止位面。
本实施例中,通过在止位面设置耐磨层,可以提升止位面的耐磨性,从而可以提升第一止位面和第二止位面之间的止位效果,进而提升转动机构的使用寿命,提升转动机构在全寿命过程中的止位精度。
一种可能的实施方式中,所述转动机构具有折叠状态和展开状态,所述转动机构由所述展开状态切换至所述折叠状态时,所述第一主摆臂沿第一方向转动,所述转动机构处于所述展开状态时,所述第一主摆臂与所述基座在第二方向上止位;其中,所述第二方向与所述第一方向相反。
本实施例中,所述转动机构处于所述展开状态时,所述第一主摆臂与所述基座在第二方向上止位,从而可以避免可折叠电子设备展开过度,对显示屏造成损坏。
一种可能的实施方式中,所述基座包括轴盖和支撑板,所述轴盖与所述支撑板层叠设置,且彼此固定连接。所述第一主摆臂和所述第二主摆臂相对展开时,所述第一主摆臂的顶面和所述第二主摆臂的顶面均与所述支撑板背向所述轴盖的表面平齐。
第一主摆臂的顶面、第二主摆臂的顶面和支撑板的顶面共同用于支撑显示屏,从而可以提高显示屏的可靠性,保证显示屏的良好显示。
第二方面,本申请提供一种可折叠电子设备。可折叠电子设备包括第一壳体、第二壳体、显示屏和上述转动机构。所述转动机构连接所述第一壳体和所述第二壳体之间,所述显示屏安装于所述第一壳体、所述第二壳体及所述转动机构。所述转动机构转动时,所述第一壳体和所述第二壳体相对转动,以带动所述显示屏弯折或展开。
具有上述转动机构的可折叠电子设备在展开状态时虚位小甚至没有虚位,显示屏不易发生冗余和返拱现象。
综上,本申请提供的转动机构,通过在基座设置第一止位面,第一主摆臂设置第二止位面,且第一主摆臂相对所述基座展开时,第二止位面与第一止位面相对设置,使得第二止位面可以阻止第一主摆臂沿着基座的宽度方向朝向基座方向移动,从而可以减小甚至避免转动机构处于展开状态下的虚位,提升用户的使用体验感;同时,也可以避免显示屏发生冗余和反拱,提升显示屏的使用寿命,还可以避免可折叠电子设备展开过度,对显示屏造成损坏。
附图说明
为了更清楚地说明本申请实施例或背景技术中的技术方案,下面将对本申请实施例或背景技术中所需要使用的附图进行说明。
图1是本申请实施例提供的可折叠电子设备在第一种状态下的结构示意图;
图2是本申请实施例提供的可折叠电子设备在第二种状态下的结构示意图;
图3是本申请实施例提供的可折叠电子设备在第三种状态下的结构示意图;
图4是图3所示可折叠电子设备的分解结构示意图;
图5是图4所示可折叠电子设备中的转动机构的结构示意图;
图6是图5所示转动机构的分解结构示意图;
图7是图5所示转动机构中的基座的部分结构示意图;
图8是图6所示转动机构中的主摆臂的放大结构示意图;
图9是图8所述主摆臂在另一角度的结构示意图;
图10是图5所示转动机构的部分结构示意图;
图11是图10所示转动机构沿A-A方向的剖面结构示意图;
图12是图5所示转动机构在第二种实施方式中的部分结构示意图;
图13是图12所示转动机构中支架的结构示意图;
图14是图13所示支架在另一角度的分解结构示意图;
图15是图12所示转动机构中主摆臂的放大结构示意图;
图16是图15所示主摆臂在另一角度的放大结构示意图;
图17是图12所示转动机构沿B-B方向的剖面结构示意图;
图18是图5所示转动机构在第三种实施方式中的部分结构示意图;
图19是图18所示转动机构的分解结构示意图;
图20是图18所示转动机构在另一角度的分解结构示意图;
图21是图18所示转动机构沿C-C方向的剖面结构示意图;
图22是图5所示转动机构在第四种实施方式中的部分结构示意图;
图23是图22所示转动机构的分解结构示意图;
图24是图22所示转动机构在另一角度的分解结构示意图;
图25是图22所示转动机构沿D-D方向的剖面结构示意图;
图26是图5所示转动机构的第一转动组件中的固定架的结构示意图;
图27是图5所示转动机构中压板的部分结构示意图;
图28是图6所示转动机构的部分分解结构示意图。
具体实施方式
下面结合本申请实施例中的附图对本申请实施例进行描述。
随着科技的发展,电子设备(如手机、平板电脑等)的外观(ID)形态有从直板机往折叠机发展的趋势。可折叠电子设备在打开状态下具有大面积屏幕,充分满足了消费者的视觉体验,在闭合状态下体积小,便于携带。转轴是可折叠电子设备的核心部件,转轴中的主摆臂支撑着中框的运动。现有技术中,可折叠电子设备处于展开状态时,主摆臂具有虚位,会造成显示屏的冗余和反拱,影响用于的使用体验。本申请提供的转动机构具有止位机构,能够降低可折叠电子设备在展开态的虚位,避免显示屏发生冗余和反拱等现象。
请参阅图1至图3,图1是本申请实施例提供的可折叠电子设备1000在第一种状态下的结构示意图,图2是本申请实施例提供的可折叠电子设备1000在第二种状态下的结构示意图,图3是本申请实施例提供的可折叠电子设备1000在第三种状态下的结构示意图。
为了便于描述,将可折叠电子设备1000的宽度方向定义为X方向,将可折叠电子设备1000的长度方向定义为Y方向,将可折叠电子设备1000的厚度方向定义为Z方向。X方向、Y方向和Z方向两两相互垂直。
可折叠电子设备1000包括但不限于手机(cellphone)、笔记本电脑(notebook computer)、平板电脑(tablet personal computer)、膝上型电脑(laptop computer)、个人数字助理(personal digital assistant)、可穿戴式设备(wearabledevice)或车载设备(mobiledevice)等。本申请实施例中,以可折叠电子设备1000为手机为例进行说明。
可折叠电子设备1000包括折叠状态和展开状态。展开状态包括半展开状态和展平状态。图1所示可折叠电子设备1000处于折叠状态,图2所示可折叠电子设备1000处于半展开状态,图3所示可折叠电子设备1000处于展平状态。其中,图2所示可折叠电子设备1000的展开角度α为90度,图3所示可折叠电子设备1000的展开角度β为180度。
需要说明的是,本申请实施例举例说明的角度均允许存在少许偏差。例如,图2所示可折叠电子设备1000的展开角度α为90度是指,α可以为90度,也可以大约为90度,比如80度、85度、95度或0度等。图3所示可折叠电子设备1000的展开角度β为180度是指,β可以为180度,也可以大约为180度,比如170度、175度、185度和190度等。后文中举例说明的角度可做相同理解。
本申请实施例所示可折叠电子设备1000为可发生一次折叠的电子设备。在其他一些实施例中,可折叠电子设备1000也可以为可发生多次(两次以上)折叠的电子设备。此时, 可折叠电子设备1000可以包括多个部分,相邻两个部分可相对靠近折叠至可折叠电子设备1000处于折叠状态,相邻两个部分可相对远离展开至可折叠电子设备1000处于展平状态。
请参阅图4,图4是图3所示可折叠电子设备1000的分解结构示意图。
可折叠电子设备1000包括折叠装置200和显示屏300,显示屏300安装于折叠装置200。显示屏300包括显示面340和安装面350,显示面340和安装面350相对设置。显示面340用于显示文字、图像和视频等。显示屏300包括第一部分310、第二部分320和可折叠部分330。可折叠部分330位于第一部分310和第二部分320之间,可折叠部分330可以沿Y方向发生弯折。第一部分310、第二部分320和可折叠部分330共同构成显示屏300。本实施例中,显示屏300为柔性显示屏300。
折叠装置200包括第一壳体210、第二壳体220和转动机构100。转动机构100部分固定于第一壳体210,部分固定于第二壳体220,以实现第一壳体210和第二壳体220之间的转动连接。显示屏300安装于折叠装置200,且安装面350与折叠装置200固定连接。具体的,第一壳体210承载显示屏300的第一部分310,第二壳体220承载第二部分320。换言之,第一部分310安装于第一壳体210,第二部分320安装于第二壳体220。其中,转动机构100与可折叠部分330相对设置。第一壳体210和第二壳体220可通过转动机构100相对转动,使得折叠装置200在折叠状态和展平状态之间相互切换。
结合图1,第一壳体210和第二壳体220通过转动机构100相对转动,通过第一壳体210和第二壳体220相对靠近带动显示屏300折叠,以使可折叠电子设备1000折叠。当可折叠电子设备1000处于折叠状态时,显示屏300的可折叠部分330发生弯折,第一部分310和第二部分320相对设置。此时,显示屏300处于第一壳体210和第二壳体220之间,可大大降低显示屏300被损坏的概率,实现对显示屏300的有效保护。
请一并参阅图2和图4,第一壳体210和第二壳体220通过转动机构100相对转动,通过第一壳体210和第二壳体220相对远离带动显示屏300展开,以使可折叠电子设备1000展开至半展开状态。当可折叠电子设备1000处于半展开状态时,第一壳体210和第二壳体220展开至夹角为α,第一部分310和第二部分320相对展开,并带动可折叠部分330展开。此时,第一部分310和第二部分320之间的夹角为α。本实施例中,α为90度。在其它实施例中,α也可以大约为90度,也可以是80度、85度、95度或0度等。
请一并参阅图3和图4,第一壳体210和第二壳体220通过转动机构100相对转动,通过第一壳体210和第二壳体220相对远离带动显示屏300进一步展开,直至可折叠电子设备1000展平。当折叠装置200处于展平状态时,第一壳体210和第二壳体220之间的夹角为β。可折叠部分330展开,第一部分310和第二部分320相对展开。此时,第一部分310、第二部分320和可折叠部分330之间的夹角均为β,显示屏300具有大面积的显示区域,实现可折叠电子设备1000的大屏显示,提高用户的使用体验。本实施例中,β为180度。在其它实施例中,β也可以大约为180度,可以是170度、175度、185度和190度等。
需要说明的是,夹角α和夹角β均为第一壳体210和第二壳体220之间的夹角,这里只是为了区分可折叠电子设备1000在不同状态下第一壳体210和第二壳体220之间的角度不同。其中,夹角α是指,可折叠电子设备1000处于半展开状态下第一壳体210和第二壳体220之间的角度;夹角β是指,可折叠电子设备1000处于展平状态下第一壳体210和第 二壳体220之间的角度。
请参阅图5和图6,图5是图4所示可折叠电子设备1000中的转动机构100的结构示意图,图6是图5所示转动机构100的分解结构示意图。
为了便于描述,本申请设置参考面P。参考面P穿过转动机构100的中心,并与X方向垂直。应当理解的是,本申请实施例描述转动机构100时所采用“顶”、“底”等方位用词主要依据转动机构100于附图5中的展示方位进行阐述,以朝向Z轴负方向为“顶”,以朝向Z轴正方向为“底”,其并不形成对转动机构100于实际应用场景中的方位的限定。
转动机构100包括基座10、转动组件1、同步组件50和压板40。转动组件1和同步组件50均安装于基座10,并可相对基座10转动,且同步组件50与转动组件1滑动连接。压板40安装于转动组件1,并与转动组件1滑动连接。转动组件1相对基座10转动时,带动压板40和同步组件50同时相对基座10转动,从而实现转动机构100在折叠和展平状态之间相互切换。
本实施例中,转动组件1有四个,四个转动组件1分别为第一转动组件101、第二转动组件102、第三转动组件103和第四转动组件104。第一转动组件101、第二转动组件102、第三转动组件103和第四转动组件104沿Y方向依次间隔排布。其中,第一转动组件101位于基座10的Y轴正方向一侧,第四转动组件104位于基座10的Y轴负方向一侧,第二转动组件102和第三转动组件103位于第一转动组件101和第二转动组件102之间。在其他实施例中,转动组件1也可以是一个、两个、三个或者五个以上。本申请对转动组件1的数量不做具体限制。
第一转动组件101包括固定架30和主摆臂20。固定架30包括第一固定架31和第二固定架32。主摆臂20包括第一主摆臂21、第二主摆臂24、第三主摆臂27和第四主摆臂28。主摆臂20安装于基座10,且可相对基座10滑动并转动。其中,第一固定架31、第一主摆臂21和第三主摆臂27位于基座10在X方向的一侧,且第一主摆臂21和第三主摆臂27均与第一固定架31转动连接。第一固定架31相对基座10转动时,带动第一主摆臂21和第三主摆臂27相对基座10滑动并转动。第二固定架32、第二主摆臂24和第四主摆臂28位于基座10在X方向的另一侧,且第二主摆臂24和第四主摆臂28均与第二固定架32转动连接。第二固定架32相对基座10转动时,带动第二主摆臂24和第四主摆臂28相对基座10滑动并转动。
第二转动组件102与第一转动组件101可以是相同或相似的组件、对称或部分对称的结构、或者不同的结构。本实施例中,第二转动组件102与第一转动组件101的结构相同。第二转动组件102包括固定架30A和主摆臂20A。固定架30A包括第一固定架31A和第二固定架32A。主摆臂20A包括第一主摆臂21A、第二主摆臂24A、第三主摆臂27A和第四主摆臂28A。第二转动组件102中各个部件的基础结构、部件之间的连接关系、以及部件与组件之外的部件之间的连接关系,均可以参照第一转动组件101的相关设计。第二转动组件102与第一转动组件101在部件的细节结构或位置排布上可以相同,也可以不同。
第三转动组件103与第一转动组件101可以是相同或相似的组件、对称或部分对称的结构、或者不同的结构。本实施例中,第三转动组件103包括固定架30B和主摆臂20B。固定架30B包括第一固定架31B和第二固定架32B。主摆臂20B包括第一主摆臂21B和第 二主摆臂24B。第三转动组件103中各个部件的基础结构、部件之间的连接关系、以及部件与组件之外的部件之间的连接关系,均可以参照第一转动组件101的相关设计。本实施例中,第三转动组件103与第一转动组件101的不同之处在于,第三转动组件103中的主摆臂20B为两个。也就是,第三转动组件103的主摆臂20B仅包括第一主摆臂21B和第二主摆臂24B,不包括第三主摆臂和第四主摆臂。
第四转动组件104与第一转动组件101可以是相同或相似的组件、对称或部分对称的结构、或者不同的结构。本实施例中,第四转动组件104包括固定架30C和主摆臂20C。固定架30C包括第一固定架31C和第二固定架32C。主摆臂20C包括第一主摆臂21C和第二主摆臂24C。第四转动组件104中各个部件的基础结构、部件之间的连接关系、以及部件与组件之外的部件之间的连接关系,均可以参照第一转动组件101的相关设计。第四转动组件104与第一转动组件101在部件的细节结构或位置排布上可以相同,也可以不同。本实施例中,第四转动组件104与第一转动组件101的不同之处在于,第四转动组件104中的主摆臂20为两个。也就是,第四转动组件104的主摆臂20C仅包括第一主摆臂21C和第二主摆臂24C,不包括第三主摆臂和第四主摆臂。并且,第四转动组件104中的第一主摆臂21C与第一转动组件101中的第一主摆臂21的结构稍有不同。
需要说明的是,本实施例中,四个转动组件1中的第一固定架和第二固定架均为单独的结构件,也就是四个转动组件1中的第一固定架为分体式结构,第二固定架为分体式结构。在其他一些实施方式中,四个转动组件1中的第一固定架也可以互相固定连接为一个结构件,第二固定架互相固定为一个结构件。也就是,第一转动组件101中的第一固定架31,第二转动组件102的第一固定架31A,第三转动组件103的第一固定架31B和第四转动组件104的第一固定架31C互相固定,并且为同一结构件。第一转动组件101中的第二固定架32,第二转动组件102的第二固定架32B,第三转动组件103的第二固定架32B和第四转动组件104的第二固定架32C互相固定,并且为同一结构件。
压板40包括第一压板41和第二压板42。第一压板41安装于第一固定架,并与第一固定架31、31A、31B、31C同时转动且滑动连接,同时,第一压板41还与第一主摆臂21、21A、21B和21C以及第三主摆臂27同时滑动且转动连接。第一固定架31、31A、31B、31C相对基座10转动时,带动第一压板41相对基座10转动,并相对第一固定架31转动并滑动,同时相对第一主摆臂21、21A、21B和21C转动并滑动。第二压板42安装于第二固定架32,并与第二固定架32、32A、32B、32C同时转动且滑动连接,同时,第二压板42还与第二主摆臂24、24A、24B和24C以及第四主摆臂28同时滑动且转动连接。第二固定架32、32A、32B、32C相对基座10转动时,带动第二压板42相对基座10转动,并相对第二固定架32转动并滑动,同时相对第二主摆臂24、24A、24B和24C转动并滑动。可以理解的是,本实施例的主摆臂20同时与固定架和压板连接,固定架30和压板40可共同带动主摆臂20相对基座10转动。也就是说,本实施例的主摆臂20还兼顾压板摆臂的作用。
在其他一些实施方式中,主摆臂20也可以不与压板40连接。转动机构100还包括压板摆臂。压板摆臂的一端安装于基座10,并与基座10转动连接,另一端安装于压板40,并与压板40转动并滑动连接。压板40相对基座10转动时,带动压板摆臂相对基座10转 动。也就是说,压板摆臂和主摆臂20为单独设置的两种摆臂。
同步组件50安装于基座10,并与固定架30滑动连接。本实施例中,同步组件50有三个。四个同步组件50分别为第一同步组件501、第二同步组件502和第三同步组件503。第一同步组件501包括第一同步摆臂51、第二同步摆臂52、同步齿轮53和阻尼件60。第一同步摆臂51和第二同步摆臂52分别设于同步齿轮53在X方向的相对两侧,并与同步齿轮53啮合,同时与阻尼件60铰接。阻尼件60和同步齿轮53均安装于基座10,且可相对基座10转动。第一同步摆臂51与第一主摆臂21位于同一侧,与第一主摆臂21和第三主摆臂27间隔设置,并与第一转动组件101中的第一固定架31滑动连接。第二同步摆臂52与第二主摆臂24位于同一侧,与第二主摆臂24和第四主摆臂28间隔设置,并与第一转动组件101中的第二固定架32滑动连接。第一转动组件101相对基座10转动时,带动第一同步摆臂51转动,从而带动同步齿轮53转动,以带动第二同步摆臂52转动,进而实现转动机构100的同步转动。同时,第一同步摆臂51和第二同步摆臂52相对基座10转动时,抵持阻尼件60,使阻尼件60产生弹性力,并反过来作用于第一同步摆臂51和第二同步摆臂52,从而为转动机构100提供阻尼力,为用户提供阻尼手感。
第二同步组件502和第三同步组件503与第一同步组件501可以是相同或相似的组件、对称或部分对称的结构、或者不同的结构。本实施例中,第二同步组件502的结构与第一同步组件501为镜像对称结构。第二同步组件502安装于基座10,并与第二转动组件102中的固定架30A滑动连接。第三同步组件503的结构与第一同步组件501为镜像对称结构。第三同步组件503安装于基座10,并与第四转动组件104中的固定架30C滑动连接。
可以理解的是,第一同步组件501、第二同步组件502和第三同步组件503中的同步摆臂兼顾阻尼摆臂的作用,阻尼件60作用于同步摆臂时,使同步摆臂具有阻尼力。
本实施例中,转动机构100还包括辅助阻尼组件70。辅助阻尼组件70包括辅助阻尼件71、第一阻尼摆臂72和第二阻尼摆臂73。辅助阻尼件71与阻尼件60的结构相同或者相似。辅助阻尼件71安装于基座10。第一阻尼摆臂72和第二阻尼摆臂73分别设于辅助阻尼件71在X方向的相对两侧,并与辅助阻尼件71铰接。第一阻尼摆臂72与第三转动组件103中的第一固定架31B滑动连接。第二阻尼摆臂73与第三转动组件103中的第二固定架32B滑动连接。第一固定架31B相对基座10转动时,带动第一阻尼摆臂72相对基座10转动,并抵持辅助阻尼件71,使辅助阻尼件71产生弹性力,并反过来作用于第一阻尼摆臂72。第二固定架32B相对基座10转动时,带动第二阻尼摆臂73相对基座10转动,并抵持辅助阻尼件71,使辅助阻尼件71产生弹性力,并反过来作用于第二阻尼摆臂73,从而进一步为转动机构100提供阻尼力。
请参阅图7,图7是图5所示转动机构100中的基座10的部分结构示意图。
基座10为长条形。基座10的长度方向与Y方向平行。基座10包括轴盖11、支架12和支撑板13。轴盖11、支架12和支撑板13依次层叠设置,且彼此固定连接。轴盖11包括外表面111和内表面112。外表面111和内表面112相对设置,并分别位于轴盖11在厚度方向(Z方向)的相对两侧。
支架12包括板体121和挡块123。挡块123包括第一挡块124和第二挡块125。本实施例中,第一挡块124和第二挡块125均为多个。多个第一挡块124沿Y方向间隔设置于 板体121在X方向的一侧。多个第二挡块125沿Y方向间隔设置于板体121在X方向的另一侧。本实施例中,支架12包括多个子支架12。多个子支架12沿Y方向间隔设置于轴盖11的内表面112,并与轴盖11固定连接。在其他实施例中,支架12也可以为一体式结构。
支撑板13为长条形板状结构。支撑板13包括支撑板本体14和导轨部17。导轨部17固定连接于支撑板本体14。导轨部17用于安装主摆臂20,以使主摆臂20沿导轨部17滑动并转动。
支撑板本体14包括顶面141、底面142、第一侧面143和第二侧面144。顶面141和底面142相对设置,并分别位于Z方向的相对两侧。第一侧面143和第二侧面144相对设置,并分别位于X方向的相对两侧,且连接于顶面141和底面142之间。顶面141设有避让槽145。避让槽145由第一侧面143和第二侧面144分别朝向顶面141在X方向的中心处弯曲并凹陷形成。避让槽145用于避让显示屏300。可折叠电子设备1000处于折叠状态时,显示屏300的弯曲部分至少部分位于避让槽145内,以避免显示屏300弯折时产生折痕等不良现象,有助于延长显示屏300的使用寿命。
支撑板本体14设有第一缺口15和第二缺口16。第一缺口15和第二缺口16沿X方向间隔且相对设置。第一缺口15设于第一侧面143,并贯穿顶面141和底面142。第一缺口15包括第一内壁151和两个第二内壁154。两个第二内壁154沿Y方向相对设置,第一内壁151连接于两个第二内壁154之间。第一内壁151包括第一弧面152和第一止位面153。第一弧面152包括两个子弧面。两个子弧面分别位于第一内壁151在Y方向的相对两侧。第一止位面153位于第一弧面152的两个子弧面之间。第一止位面153朝向第一侧面143。第一止位面153为平面,且第一止位面153所在的平面与X方向相交。本实施例中,第一止位面153与X方向垂直。第一止位面153用于与第一主摆臂21止位。
第二缺口16与第一缺口15相对参考面P对称设置。第二缺口16设于第二侧面144,并贯穿顶面141和底面142。第二缺口16包括第三内壁161和两个第四内壁164。两个第四内壁164沿Y方向相对设置,第三内壁161连接于两个第四内壁164之间。第三内壁161包括第二弧面162和第三止位面163。第三止位面163位于第二弧面162的两个子弧面之间。第三止位面163朝向第二侧面144。第三止位面163为平面,且第三止位面163所在的平面与X方向相交。本实施例中,第三止位面163与X方向垂直。第三止位面163用于与第二主摆臂24止位。
导轨部17包括第一滑轨171和第一导轨172。第一滑轨171和第一导轨172均设于第一缺口15的内壁。本实施例中,第一滑轨171有两个。每一第一滑轨171固定于一个第二内壁154,并朝向第一缺口15内延伸。两个第一滑轨171沿Y方向相对并间隔设置。第一滑轨171的顶面与顶面141平齐,用于共同支撑显示屏300。第一滑轨171的底面为弧形,用于与第一主摆臂21配合。第一导轨172的一端与第一内壁151固定连接,另一端朝向第一侧面143方向延伸。并且,第一止位面153位于第一导轨172的相对两侧。第一导轨172的顶面为弧形,用于与第一主摆臂21配合。
导轨部17还包括第二滑轨173和第二导轨174。第二滑轨173和第二导轨174均设于第二缺口16的内壁。本实施例中,第二滑轨173有两个。一个第二滑轨173固定于一个第四内壁164,并朝向第二缺口16内延伸。两个第二滑轨173沿Y方向相对并间隔设置。第 二滑轨173的顶面与顶面141平齐,共同用于支撑显示屏300。第二滑轨173的底面为弧形,用于与第二主摆臂24配合。第二导轨174的一端与第三内壁161固定连接,另一端朝向第二侧面144方向延伸。第二导轨174的顶面141为弧形,用于与第二主摆臂24配合。
支撑板本体14还设有第一安装口146、第二安装口147、第三缺口148和第四缺口149。第一安装口146和第二安装口147相对参考面P对称设置。第三缺口148和第四缺口149相对参考面P对称设置。并且,第一安装口146、第三缺口148和第一缺口15沿Y方向并排且间隔设置,第二安装口147、第四缺口149和第二缺口16沿Y方向并排且间隔设置。其中,第三缺口148的结构与第一缺口15的结构一致,第四缺口149的结构与第二缺口16的结构一致。第一安装口146用于安装第一同步摆臂51,第二安装口147用于安装第二同步摆臂52。
导轨部17还包括第三滑轨175、第四滑轨176、第三导轨177和第四导轨178。第三滑轨175的结构与第一滑轨171的结构一致。第三导轨177的结构与第一导轨172的结构一致。第三滑轨175和第三导轨177固定于第三缺口148的内壁。第四滑轨176的结构与第二滑轨173的结构一致。第四导轨178的结构与第二导轨174的结构一致。第四滑轨176和第四导轨178固定于第四缺口149的内壁。
支架12安装于轴盖11的内表面112。支架12的三个子支架12沿Y方向并排且间隔设置。支撑板13安装于支架12背向轴盖11的一面,并卡持在第一挡块124和第二挡块125之间。挡块123对支撑板13起到固定作用,能够提升支撑板13的结构稳定性。基座10还包括多个螺栓。螺栓穿过支撑板13和支架12,与轴盖11固定连接,从而实现支撑板13、支架12和轴盖11之间固定连接。
可以理解的是,第一缺口15的内壁和第一子支架12围合形成第一转动槽,第一止位面153位于第一转动槽内。第一转动槽用于安装第一主摆臂21,且第一主摆臂21可在第一转动槽内转动并滑动。第二缺口16的内壁和第一子支架12围合形成第二转动槽,第三止位面163位于第二转动槽内。第二转动槽用于安装第二主摆臂24,且第二主摆臂24可在第二转动槽内转动并滑动。第一转动槽和第二转动槽沿基座10的宽度方向(X方向)相对设置。第三缺口148的内壁和第三子支架12围合形成第三转动槽,第三转动槽用于安装第三主摆臂27。第四缺口149的内壁和第三子支架12围合形成第四转动槽,第四转动槽用于安装第四主摆臂28。
需要说明的是,图7中仅示出基座10在Y轴正方向的部分结构,基座10在Y轴负方向的结构与Y轴正方向的结构相同或者相似,并且基座10在Y轴负方向的结构可根据第二转动组件102、第三转动组件103和第四转动件的结构做适当调整。
请参阅图8和图9,图8是图6所示转动机构100中的主摆臂20的放大结构示意图,图9是图8所述主摆臂20在另一角度的结构示意图。
主摆臂20包括第一主摆臂21和第二主摆臂24。第一主摆臂21包括第一转动体22、第一摆动体212和第一轴座211。第一轴座211设有轴孔。第一轴座211的轴孔的延伸方向与Y方向平行。第一轴座211用于与第一主摆臂21转动连接。第一摆动体212呈平面板状。第一摆动体212设有第一转动孔213。第一转动孔213在第一主摆臂21的宽度方向(Y方向)贯穿第一主摆臂21。第一转动孔213的沿着方向与Y方向平行。也就是,第一转动孔 213的延伸方向与第一轴座211的延伸方向一致。第一摆动体212固定连接于第一轴座211和第一转动体22之间。
第一转动体22包括第一端221和第二端222。第一端221和第二端222相对设置,并分别位于X方向的相对两侧。第一转动体22的第二端222与第一摆动体212背向第一轴座211的一端固定连接。第一转动体22包括第一支撑面223和第一转动面224。第一转动面224与第一支撑面223沿第一主摆臂21的厚度方向相对设置。第一转动面224为曲面,用于安装在第一转动槽内。第一支撑面223为平面。第一主摆臂21相对基座10展开时,第一支撑面223与支撑板13的顶面141大致在同一平面,用于共同支撑显示屏300。第一支撑面223在Y方向的相对两侧分别设有第一弧形槽225。第一弧形槽225用于与第一滑轨171滑动连接。
第一转动体22还设有第一凹槽227和第一避让孔226。第一凹槽227的开口位于第一转动面224,并贯穿第一端221。第一凹槽227包括第一底壁2271和两个第一侧壁2272。两个第一侧壁2272沿Y方向相对设置,并且均与第一底壁2271固定连接。第一底壁2271为弧形,用于与第一导轨172滑动连接。第一侧壁2272设有台阶结构。第一主摆臂21还包括第二止位面23。第二止位面23位于第一侧面143台阶结构处。第二止位面23朝向第一端221。第二止位面23即为设于第一侧壁2272的台阶结构的台阶面。第二止位面23所在的平面与X方向相交。第二止位面23用于与第一止位面153止位。本实施例中,第二止位面23与X方向垂直。在其他一些实施方式中,第二止位面23与X方向的夹角也可以稍大于90度,或者稍小于90度。第一避让孔226设于第一底壁2271,并在第一转动体22的厚度方向贯穿第一转动体22。第一避让孔226用于避让第一导轨172。
第二主摆臂24与第一主摆臂21的结构相同。第二主摆臂24包括第二转动体25、第二摆动体242和第二轴座241。第二摆动体242设有第二转动孔243。第二摆动体242固定连接于第二轴座241和第二转动体25之间。第二转动体25包括第三端251和第四端252。第四端252与第二摆动体242背向第二轴座241的一端固定连接。
第二转动体25包括第二支撑面253和第二转动面254。第二主摆臂24相对基座10展开时,第二支撑面253与支撑板13的顶面141大致在同一平面,用于共同支撑显示屏300。第二支撑面253设有第二弧形槽255、第二凹槽257和第二避让孔256。第二弧形槽255用于与第二滑轨173滑动连接。第二凹槽257的开口位于第二转动面254,并贯穿第三端251。第二凹槽257包括第二底壁2571和两个第二侧壁2572。第二底壁2571用于与第二导轨174滑动连接。第二侧壁2572设有台阶结构。第二主摆臂24还包括第四止位面26。第四止位面26位于第二侧壁2572的台阶结构处。第四止位面26朝向第三端251。第四止位面26即为设于第二侧壁2572的台阶结构的台阶面。第四止位面26用于与第三止位面163止位。
请一并参阅图6,第三主摆臂27的结构与第一主摆臂21的结构相同,第四主摆臂28的结构与第二主摆臂24的结构相同,在这里不做赘述。
请参阅图10和图11,图10是图5所示转动机构100的部分结构示意图,图11是图10所示转动机构100沿A-A方向的剖面结构示意图。本申请附图中,沿“A-A处剖开”是指沿A-A线及A-A线两端箭头所在的平面剖开。后文中对附图的说明可做相同理解。
第一主摆臂21和第二主摆臂24均安装于基座10,并分别位于基座10在X轴的相对 两侧。其中,第一主摆臂21的第一转动体22安装于第一转动槽。第一转动面224朝向支架12。第一滑轨171位于第一弧形槽225内,第一滑轨171的底面与第一弧形槽225的底壁相对并接触。第一导轨172位于第一凹槽227内,第一导轨172的顶面与第一凹槽227的第一底壁2271相对并接触,第一导轨172在Y方向的相对两个侧壁分别与第一凹槽227的相对两个第一侧壁2272相对。第一主摆臂21相对基座10转动时,第一转动体22可在第一转动槽内沿着第一滑轨171和第一导轨172的延伸方向滑动并转动。
第二主摆臂24的第二转动体25安装于第二转动槽。第二转动面254朝向支架12。第二滑轨173位于第二弧形槽255内,第二滑轨173的底面与第二弧形槽255的底壁相对并接触。第二导轨174位于第二凹槽257内,第二导轨174的顶面141与第二凹槽257的第二底壁2571相对并接触,第二导轨174在Y方向的相对两个侧壁分别与第二凹槽257的相对两个第二侧壁2572相对。第二主摆臂24相对基座10转动时,第二转动体25可在第二转动槽内沿着第二滑轨173和第二导轨174的延伸方向滑动并转动。
其中,第一主摆臂21和第二主摆臂24相对基座10的转动方向相反。示例性的,转动机构100从折叠状态切换至展平状态时,第一主摆臂21沿第二方向旋转,第二主摆臂24第一方向旋转。转动机构100从展平状态切换至折叠状态时,第一主摆臂21沿第一方向旋转,第二主摆臂24沿第二方向旋转。其中,第一方向与第二方向相反。本实施例中,第一方向即为逆时针方向,第二方向即为顺时针方向。
转动机构100从折叠状态切换至展平状态时,第一主摆臂21顺时针旋转,第一转动面224沿着第一弧面152朝向靠近第一转动槽方向滑动,第一弧形槽225的底壁沿着第一滑轨171的底面朝向靠近第一转动槽方向滑动,第一凹槽227的第一底壁2271沿着第一导轨172的顶面朝向靠近第一转动槽方向滑动,第二止位面23朝向第一止位面153方向移动并互相止位。第二主摆臂24逆时针旋转,第二转动面254沿着第二弧面162朝向靠近第二转动槽方向滑动,第二弧形槽255的底壁沿着第二滑轨173的底面朝向靠近第二转动槽方向滑动,第二凹槽257的第二底壁2571沿着第二导轨174的顶面141朝向靠近第二转动槽方向滑动,第四止位面26朝向第三止位面163方向移动并互相止位,从而使转动机构100处于展平状态。
转动机构100处于展平状态时,第一主摆臂21和第二主摆臂24相对基座10展开,第一导轨172背向第一内壁151的一端位于第一避让孔226内,第二导轨174背向第三内壁161的一端位于第二避让孔256内。第一支撑面223、第二支撑面253与支撑板13的顶面141大致在同一平面内,共同用于支撑显示屏300。第二止位面23与第一止位面153相对且互相锁持,第二止位面23与第一止位面153可以正好接触,也可以互相抵持。第四止位面26与第三止位面163相对且互相锁持,第四止位面26与第三止位面163可以正好接触,也可以互相抵持。
转动机构100从展平状态切换至折叠状态时,第一主摆臂21逆时针旋转,第一转动体22沿着第一滑轨171和第一导轨172朝向远离第一转动槽方向转动并滑动,第二止位面23朝向远离第一止位面153方向移动,并与第一止位面153解锁。第二主摆臂24顺时针旋转,第二转动体25沿着第二滑轨173和第二导轨174朝向远离第二转动槽方向转动并滑动,第四止位面26朝向远离第三止位面163方向移动,并与第三止位面163解锁,第一主摆臂 21和第二主摆臂24相对折叠,从而使转动机构100处于折叠状态。
需要说明的是,转动机构100处于展平状态时,用户在使用时会对主摆臂20施加朝向基座10方向的作用力,该作用力使得主摆臂20具有沿基座10的宽度方向(X方向)朝向基座10方向移动的趋势,这种趋势即为转动机构100处于展平状态时的虚位。当主摆臂20朝向基座10方向仍有移动空间时,主摆臂20会继续沿X方向朝向基座10方向移动,也就是,转动机构100具有较大虚位,从而会影响用户的使用体验。并且,主摆臂20沿X方向朝向基座10方向继续移动之后,会对显示屏300造成挤压,导致显示屏300出现冗余、反拱等现象,从而会导致显示屏300发生损坏。这里所说的“冗余”是指,显示屏300受到沿X方向的相对两侧朝向中间的方向的挤压时,出现褶皱的现象。“反拱”是指显示屏300朝向远离基座10方向弯折。
本实施例中,通过在第一转动槽设置第一止位面153,第一主摆臂21设置第二止位面23,且转动机构100处于展平状态时,第二止位面23与第一止位面153互相抵持,使得转动机构100处于展平状态时,第二止位面23可以阻止第一主摆臂21沿X方向朝向基座10方向移动,也就是,第一主摆臂21与基座10在X方向上止位,从而可以减小甚至避免转动机构100处于展平状态下的虚位,提升用户的使用体验感;同时,也可以避免显示屏300发生冗余和反拱,提升显示屏300的使用寿命。并且,转动机构100处于展平状态时,第一主摆臂21与基座10还在顺时针方向上止位,从而可以避免第一主摆臂21进一步顺时针转动,避免可折叠电子设备1000展开过度,对显示屏300造成损坏。
并且,本实施例中,通过在第二转动槽设置第三止位面163,第二主摆臂24设置第四止位面26,且转动机构100处于展平状态时,第四止位面26与第三止位面163互相抵持,使得转动机构100处于展平状态时,第二主摆臂24无法沿X方向朝向基座10方向移动,从而可以进一步减小甚至避免转动机构100处于展平状态下的虚位,提升用户的使用体验。
本实施例中,第一止位面153、第二止位面23、第三止位面163和第四止位面26的方向均与X方向垂直,第一止位面153与第二止位面23之间的抵持力方向,以及第三止位面163与第四止位面26之间的抵持力方向,均与用户挤压虚位的方向平行或者大致平行。也即,转动机构100的止位受力方向与用户在使用可折叠电子设备1000时挤压虚位的方向平行,从而可以提升转动机构100的止位精度,提升用户的使用体验。并且,本实施例中的转动机构100通过面与面之间的抵持实现止位,可以提升止位面积,从而可以进一步提升转动结构的止位精度,进而提升用户的使用体验。
并且,本实施例中,用户对转动机构100的挤压作用力可以转移至第一止位面153和第三止位面163。基座10对第一主摆臂21的反作用位于第二止位面23,对第二主摆臂24的反作用力位于第四止位面26,避开了主摆臂20的薄弱区域,从而优化了主摆臂20的受力情况,可以避免基座10对主摆臂20作用力造成主摆臂20发生损坏,提升了转动机构100的可靠性和使用寿命。
此外,本实施例中,通过在基座10设置第一导轨172,在第一主摆臂21设置第一凹槽227,并将第一导轨172安装于第一凹槽227内,使得第一主摆臂21可以沿着第一导轨172相对基座10转动,从而可以提升第一主摆臂21转动的稳定性,避免第一主摆臂21转动时偏离预设路径,进而可以提升第二止位面23与第一止位面153之间的止位效果和止位 精度。通过在基座10设置第二导轨174,在第二主摆臂24设置第二凹槽257,并将第二导轨174安装于第二凹槽257内,使得第二主摆臂24可以沿着第二导轨174相对基座10转动,从而可以提升第二主摆臂24转动的稳定性,避免第二主摆臂24转动时偏离预设路径,进而可以提升第四止位面26与第三止位面163之间的止位效果和止位精度。
在一种实施方式中,转动机构100处于展平状态时,第一止位面153和第二止位面23过盈配合。第一止位面153和第二止位面23的过盈量为0~0.1mm。在一些实施方式中,第一止位面153和第二止位面23的过盈量为0~0.04mm。这里所说的“过盈配合”是指,第一止位面153和第二止位面23互相的抵持并挤压。第一止位面153和第二止位面23互相挤压差产生的变形量即为过盈量。这里的“过盈量”为第一止位面153的形变量和第二止位面23的形变量的总和。本实施例中,通过将第一止位面153和第二止位面23过盈配合,可以实现第一止位面153和第二止位面23之间的压紧配合,从而可以进一步阻止第一主摆臂21沿X方向朝向基座10方向移动,进而可以进一步提升转动机构100的止位精度,减小转动机构100处于展平状态的虚位,提升可折叠电子设备1000的显示屏300可靠性,提升用户的使用体验。
转动机构100处于展平状态时,第三止位面163和第四止位面26过盈配合。第三止位面163和第四止位面26的过盈量为0~0.1mm。在一些实施方式中,第三止位面163和第四止位面26的过盈量为0~0.04mm。这里的“过盈量”为第三止位面163的形变量和第四止位面26的形变量的总和。本实施例中,通过将第三止位面163和第四止位面26过盈配合,可以实现第三止位面163和第四止位面26之间的压紧配合,从而可以进一步阻止第二主摆臂24沿X方向朝向基座10方向移动,进而可以进一步减小转动机构100处于展平状态的虚位,提升用户的使用体验。
在一种实施方式中,转动机构100包括耐磨层。耐磨层可以为金属材料,也可以是高分子材料,示例性的,耐磨层为聚四氟乙烯。本实施例中,第一止位面153、第二止位面23、第三止位面163和第四止位面26均设有耐磨层。耐磨层通过物理气相沉积的方法形成。在其他实施方式中,耐磨层也可以通过其他镀膜工艺形成。本实施例中,通过在止位面设置耐磨层,可以提升止位面的耐磨性,从而可以提升第一止位面153和第二止位面23之间的止位效果,以及第三止位面163和第四止位面26之间的止位效果,进而提升转动机构100的使用寿命,提升转动机构100在全寿命过程中的止位精度。
在其他一些实施方式中,耐磨层可以设于第一止位面153、第二止位面23、第三止位面163和第四止位面26中的其中一个止位面。或者,耐磨层也可以设于第一止位面153、第二止位面23、第三止位面163和第四止位面26中的其中两个止位面或其中三个止位面。
请参阅图12、图13和图14,图12是图5所示转动机构100在第二种实施方式中的部分结构示意图,图13是图12所示转动机构100中支架12的结构示意图,图14是图13所示支架12在另一角度的分解结构示意图。
本实施例所示转动机构100中的基座10与图7所示基座10的不同之处在于:
本实施例中,支撑板13的第一止位面153位于第一弧面152的两个子弧面之间,并朝向第一侧面143。第一止位面153与第一导轨172沿Z方向并排设置,且第一止位面153位于第一导轨172的Z轴正方向一侧。第一导轨172的顶面为平面,并与支架12的顶面 141平齐,用于共同支撑显示屏300。第一导轨172的底面为弧形,用于与第一主摆臂21配合。并且,第一导轨172的底面与第一止位面153连接。第一滑轨171的底面为平面,并与支架12的底面142平齐。或者,第一滑轨171的底面与支撑板13的底面142之间也可以有少量高度差。第一滑轨171的顶面为弧形,并形成第一滑动槽131。第一滑动槽131用于安装第一主摆臂21。
第三止位面163位于第二弧面162的两个子弧面之间,并朝向第二侧面144。第三止位面163与第二导轨174沿Z方向并排设置,且第三止位面163位于第二导轨174的Z轴正方向一侧。第二导轨174的顶面为平面,并与支架12的顶面141平齐,用于共同支撑显示屏300。第二导轨174的底面为弧形,用于与第二主摆臂24配合。并且,第二导轨174的底面与第三止位面163连接。第二滑轨173的底面为平面,并与支架12的底面142平齐。第二滑轨173的顶面为弧形,并形成第二滑动槽132。第二滑动槽132用于安装第二主摆臂24。
请参阅图15和图16,图15是图12所示转动机构100中主摆臂20的放大结构示意图,图16是图15所示主摆臂20在另一角度的放大结构示意图。
本实施例所示转动机构100中的主摆臂20与图8所示主摆臂20的不同之处在于:
本实施例中,第一主摆臂21还包括第一滑块214。第一滑块214有两个。两个第一滑块214分别固定于第一转动体22沿Y方向的相对两侧。第一滑块214的顶面与第一支撑面223平齐,用于共同支撑显示屏300。第一滑块214的底面为弧形,用于与第一滑轨171配合。第一端221设有第一避让缺口228。第一避让缺口228贯穿第一支撑面223和第一转动面224。第二止位面23设于第一避让缺口228的底面,并朝向第一端221。本实施例中,第二止位面23与X方向垂直。在其他一些实施方式中,第二止位面23与X方向的夹角也可以稍大于90度,或者稍小于90度。可以理解的是,第二止位面23即为第一避让缺口228的底壁面。第二止位面23用于与第一止位面153止位。第一转动体22设有第一凹槽227。第一凹槽227的开口位于第一支撑面223,并与第一避让缺口228连通。第一凹槽227的第一底壁2271为弧形。第一底壁2271与第二止位面23连接。第一凹槽227用于安装第一导轨172。
本实施例中,第二主摆臂24还包括两个第二滑块244。两个第二滑块244分别固定于第二转动体25沿Y方向的相对两侧。第二滑块244的顶面与第二支撑面253平齐,用于共同支撑显示屏300。第二滑块244的底面为弧形,用于与第二滑轨173配合。第三端251设有第二避让缺口258。第二避让缺口258贯穿第二支撑面253和第二转动面254。第二避让缺口258包括第四止位面26。第四止位面26朝向第三端251。第四止位面26用于与第三止位面163止位。第二转动体25设有第二凹槽257。第二凹槽257的开口位于第二支撑面253,并与第二避让缺口258连通。第二凹槽257的第二底壁2571为弧形。第二底壁2571与第四止位面26连接。第二凹槽257用于安装第二导轨174。
请参阅图17,图17是图12所示转动机构100沿B-B方向的剖面结构示意图。
第一主摆臂21和第二主摆臂24均安装于基座10,并分别位于基座10在X轴的相对两侧。其中,第一主摆臂21的第一转动体22安装于第一转动槽。第一转动面224朝向第一内壁151,且可沿着第一内壁151的第一弧面152滑动。第一滑块214位于第一滑动槽 131内,且可沿着第一滑动槽131滑动。第一导轨172位于第一凹槽227内,第一导轨172的底面与第一凹槽227的第一底壁2271相对并接触。第一主摆臂21相对基座10转动时,第一转动体22可在第一转动槽内沿着第一滑轨171和第一导轨172的延伸方向滑动并转动。
第二主摆臂24的第二转动体25安装于第二转动槽。第二转动面254朝向第三内壁161,且可沿着第三内壁161的第二弧面162滑动。第二滑块244位于第二滑动槽132内,且可沿着第二滑动槽132滑动。第二导轨174位于第二凹槽257内,第二导轨174的底面与第二凹槽257的第二底壁2571相对并接触。第二主摆臂24相对基座10转动时,第二转动体25可在第二转动槽内沿着第二滑轨173和第二导轨174的延伸方向滑动并转动。
转动机构100从折叠状态切换至展平状态时,第一主摆臂21顺时针旋转,第一转动面224沿着第一弧面152朝向靠近第一转动槽方向滑动,第一滑块214沿着第一滑动槽131朝向靠近第一转动槽方向滑动,第一凹槽227的第一底壁2271沿着第一导轨172的底面朝向靠近第一导轨172方向滑动,第二止位面23朝向第一止位面153移动,并与第一止位面153互相止位。第二主摆臂24逆时针旋转,第二转动面254沿着第二弧面162朝向靠近第二转动槽方向滑动,第二滑块244沿着第二滑动槽132朝向靠近第二转动槽方向滑动,第二凹槽257的第二底壁2571沿着第二导轨174的底面朝向靠近第二导轨174方向滑动,第四止位面26朝向第三止位面163移动,并与第三止位面163互相止位,从而使转动机构100处于展平状态。
转动机构100处于展平状态时,第一主摆臂21和第二主摆臂24相对展开,第一滑块214位于第一滑动槽131内,第一导轨172位于第一凹槽227内,第二滑块244位于第一滑动槽131内,第二导轨174位于第二凹槽257内。第一支撑面223、第一导轨172的顶面、第二支撑面253、第二导轨174的顶面和支撑板13的顶面141大致在同一平面内,共同用于支撑显示屏300。第二止位面23与第一止位面153相对且互相锁持,第二止位面23与第一止位面153可以正好接触,也可以互相抵持。第四止位面26与第三止位面163相对且互相锁持,第四止位面26与第三止位面163可以正好接触,也可以互相抵持。
本实施例中,通过在第一转动槽内设置第一止位面153,第一主摆臂21设置第二止位面23,且转动机构100处于展平状态时,第二止位面23与第一止位面153互相抵持,使得转动机构100处于展平状态时,第二止位面23可以阻止第一主摆臂21沿X方向朝向基座10方向移动,从而可以减小甚至避免转动机构100处于展平状态下的虚位,提升用户的使用体验感;同时,也可以避免显示屏300发生冗余和反拱,提升显示屏300的使用寿命,还可以避免可折叠电子设备1000展开过度,对显示屏300造成损坏。
并且,本实施例中,第二止位面23设于第一主摆臂21的端部,可以增大第二止位面23的面积,从而可以增大第二止位面23与第一止位面153的接触面积,增大第一主摆臂21与基座10的止位面积,进而可以进一步提升第一主摆臂21与基座10的止位效果和止位精度,并进一步减小甚至避免转动机构100处于展平状态下的虚位。
同时,本实施例中,通过在第二转动槽设置第三止位面163,第二主摆臂24设置第四止位面26,且转动机构100处于展平状态时,第四止位面26与第三止位面163互相抵持,使得转动机构100处于展平状态时,第二主摆臂24无法继续沿X方向朝向基座10方向移 动,从而可以进一步减小甚至避免转动机构100处于展平状态下的虚位,提升用户的使用体验。
请参阅图18、图19和图20,图18是图5所示转动机构100在第三种实施方式中的部分结构示意图,图19是图18所示转动机构100的分解结构示意图,图20是图18所示转动机构100在另一角度的分解结构示意图。
本实施例所示转动机构100中的基座10与图7所示基座10的不同之处在于:
本实施例中,支撑板13的第一内壁151包括第一弧面152和第一止位面153。第一止位面153包括第一子止位面155和第三子止位面156。第一弧面152包括两个子弧面。两个子弧面分别位于第一内壁151在Y方向的相对两侧。第三子止位面156和第一子止位面155均连接于第一弧面152的两个子弧面之间。第三子止位面156和第一子止位面155沿Z方向并排设置。并且,第一子止位面155位于第三子止位面156的Z轴负方向一侧。第三子止位面156和第一子止位面155均为平面,且朝向第一侧面143。第一子止位面155所在的平面和第三子止位面156所在的平面均与X方向相交。本实施例中,第一子止位面155和第三止位面163均与X方向垂直。第一导轨172的顶面与支架12的顶面141具有高度差,且第一导轨172的顶面位于顶面141的Z轴正方向。第一子止位面155连接于顶面141和第一导轨172的顶面之间。第三子止位面156位于第一导轨172在Y方向的相对两侧,并与第一导轨172在Y方向的侧面固定连接。
本实施例中,第二内壁154还包括第二弧面162和第三止位面163。第三止位面163包括第五子止位面165和第七子止位面166。第二弧面162包括两个子弧面。第二弧面162的两个子弧面分别位于第二内壁154在Y方向的相对两侧。第七子止位面166和第五子止位面165均连接于第二弧面162的两个子弧面之间。第七子止位面166和第五子止位面165沿Z方向并排设置。并且,第五子止位面165位于第七子止位面166的Z轴负方向一侧。第七子止位面166和第五子止位面165均为平面,且朝向第二侧面144。第七子止位面166所在的平面和第五子止位面165所在的平面与X方向垂直。第二导轨174的顶面与支架12的顶面141具有高度差,且第二导轨174的顶面位于顶面141的Z轴正方向。第五子止位面165连接于顶面141和第二导轨174的顶面之间。第七子止位面166位于第二导轨174在Y方向的相对两侧,并与第二导轨174在Y方向的侧面固定连接。
本实施例所示转动机构100的主摆臂20与图8所示主摆臂20的不同之处在于:
本实施例中,第一主摆臂21的第一端221设有第一避让缺口228。第一避让缺口228贯穿第一支撑面223和第一转动面224。第二止位面23包括第二子止位面231和第四子止位面232。第二子止位面231设于第一避让缺口228的底壁面。第二子止位面231朝向第一端221。本实施例中,第二子止位面231与X方向垂直。可以理解的是,第二子止位面231即为第一避让缺口228的底壁面。第一凹槽227的开口位于第一转动面224,并与第一避让缺口228连通。第四子止位面232设于第一凹槽227的第一侧壁2272,并朝向第一端221。本实施例中的第四子止位面232的结构与图8所示实施例中的第二止位面23的结构相同。第一凹槽227的第一底壁2271为弧形。第一底壁2271与第二子止位面231连接。也即,第二子止位面231连接于第一底壁2271和第一支撑面223之间。第二子止位面231用于与设于第一转动槽的第一子止位面155止位。
本实施例中,第二主摆臂24的第三端251设有第二避让缺口258。第二避让缺口258贯穿第二支撑面253和第二转动面254。第四止位面26包括第六子止位面261和第八子止位面262。第六子止位面261设于第二避让缺口258的底壁面。第六子止位面261朝向第三端251。本实施例中,第六子止位面261与X方向垂直。第二凹槽257的开口位于第二转动面254,并与第二避让缺口258连通。第八子止位面262设于第二凹槽257的第二侧壁2572,并朝向第三端251。本实施例中的第八子止位面262的结构与图8所示实施例中的第四止位面26的结构相同。第二凹槽257的第二底壁2571为弧形。第二底壁2571与第六子止位面261连接。也即,第六子止位面261连接于第二底壁2571和第二支撑面253之间。第六子止位面261用于与设于第二转动槽的第五子止位面165止位。
请一并参阅图21,图21是图18所示转动机构100沿C-C方向的剖面结构示意图。
第一主摆臂21和第二主摆臂24均安装于基座10,并分别位于基座10在X轴的相对两侧。其中,第一主摆臂21的第一转动体22安装于第一转动槽。第一转动面224朝向支架12。第一滑轨171位于第一弧形槽225内,第一滑轨171的底面与第一弧形槽225的底壁相对并接触。第一导轨172位于第一凹槽227内,第一导轨172的顶面与第一凹槽227的第一底壁2271相对并接触,第一导轨172在Y方向的相对两个侧壁分别与第一凹槽227的相对两个第一侧壁2272相对。第一主摆臂21相对基座10转动时,第一转动体22可在第一转动槽内沿着第一滑轨171和第一导轨172的延伸方向滑动并转动。
第二主摆臂24的第二转动体25安装于第二转动槽。第二转动面254朝向支架12。第二滑轨173位于第二弧形槽255内,第二滑轨173的底面与第二弧形槽255的底壁相对并接触。第二导轨174位于第二凹槽257内,第二导轨174的顶面与第二凹槽257的第二底壁2571相对并接触,第二导轨174在Y方向的相对两个侧壁分别与第二凹槽257的相对两个第二侧壁2572相对。第二主摆臂24相对基座10转动时,第二转动体25可在第二转动槽内沿着第二滑轨173和第二导轨174的延伸方向滑动并转动。
转动机构100从折叠状态切换至展平状态时,第一主摆臂21顺时针旋转,第一转动面224沿着第一弧面152朝向靠近第一转动槽方向滑动,第一弧形槽225的底壁沿着第一滑轨171的底面朝向靠近第一转动槽方向滑动,第一凹槽227的第一底壁2271沿着第一导轨172的顶面朝向靠近第一导轨172方向滑动,第四子止位面232朝向第三子止位面156方向移动并互相止位,第二子止位面231朝向第一子止位面155方向移动并互相止位。第二主摆臂24逆时针旋转,第二转动面254沿着第二弧面162朝向靠近第二转动槽方向滑动,第二弧形槽255的底壁沿着第二滑轨173的底面朝向靠近第二转动槽方向滑动,第二凹槽257的第二底壁2571沿着第二导轨174的顶面141朝向靠近第二导轨174方向滑动,第八子止位面262朝向第七子止位面166方向移动并互相止位,第六子止位面261朝向第五子止位面165方向移动并互相止位,从而使转动机构100处于展平状态。
转动机构100处于展平状态时,第一主摆臂21和第二主摆臂24相对展开,第一导轨172背向第一内壁151的一端位于第一避让孔226内,第二导轨174背向第三内壁161的一端位于第二避让孔256内。第一支撑面223、第二支撑面253与支撑板13的顶面141大致在同一平面内,共同用于支撑显示屏300。第四子止位面232与第三子止位面156相对且互相锁持,第四子止位面232与第三子止位面156可以正好接触,也可以互相抵持。第 二子止位面231与第一子止位面155相对且互相锁持,第二子止位面231与第一子止位面155可以正好接触,也可以互相抵持。第八子止位面262与第七子止位面166相对且互相锁持,第八子止位面262与第七子止位面166可以正好接触,也可以互相抵持。第六子止位面261与第五子止位面165相对且互相锁持,第六子止位面261与第五子止位面165可以正好接触,也可以互相抵持。
本实施例中,通过在支撑板13设置第一子止位面155,第一主摆臂21设置第二子止位面231,使得转动机构100处于展平状态时,第一主摆臂21与基座10不仅通过第四子止位面232和第三子止位面156实现止位,还通过第二子止位面231和第一子止位面155实现止位,从而可以进一步阻止第一主摆臂21沿X方向朝向基座10方向继续移动,提升止位效果和止位精度,进一步减小甚至避免转动机构100处于展平状态下的虚位,提升用户的使用体验感;同时,也可以进一步避免显示屏300发生冗余和反拱,提升显示屏300的使用寿命,避免可折叠电子设备1000展开过度,对显示屏300造成损坏。
并且,本实施例中,通过在支撑板13设置第五子止位面165,第二主摆臂24设置第六子止位面261,使得转动机构100处于展平状态时,第二主摆臂24与基座10不仅通过第七子止位面166和第八子止位面262实现止位,还通过第五子止位面165和第六子止位面261实现止位,从而可以进一步阻止第二主摆臂24沿X方向朝向基座10方向继续移动,提升止位效果和止位精度,进一步减小甚至避免转动机构100处于展平状态下的虚位,提升用户的使用体验感。
请参阅图22、图23和图24,图22是图5所示转动机构100在第四种实施方式中的部分结构示意图,图23是图22所示转动机构100的分解结构示意图,图24是图22所示转动机构100在另一角度的分解结构示意图。
本实施例所示转动机构100中的基座10与图7所示基座10的不同之处在于:
本实施例中,支撑板13的第一内壁151包括第一止位面153。第一止位面153包括第三子止位面156和第一子止位面155。第一子止位面155包括两部分。第一子止位面155的两部分分别位于第一内壁151在Y方向的相对两侧。第三子止位面156连接于第一子止位面155的两部分之间。第三子止位面156和第一子止位面155均为平面,并且均朝向第一侧面143。第一子止位面155和第三子止位面156所在的平面均与X方向相交。本实施例中,第一子止位面155和第三子止位面156均与X方向垂直。
本实施例中,第二内壁154包括第三止位面163。第三止位面163包括第七子止位面166和第五子止位面165。第五子止位面165包括两部分。第五子止位面165的两部分分别位于第二内壁154在Y方向的相对两侧。第七子止位面166连接于第五子止位面165的两部分之间。第七子止位面166和第五子止位面165均为平面,并且均朝向第二侧面144。第五子止位面165和第七子止位面166所在的平面均与X方向相交。本实施例中,第五子止位面165和第七子止位面166均与X方向垂直。
本实施例所示转动机构100的主摆臂20与图8所示主摆臂20的不同之处在于:
本实施例中,第二止位面23包括第二子止位面231和第四子止位面232。第二子止位面231设于第一端221背离第二端222的一面。第二子止位面231为平面,且第二子止位面231所在的平面与X方向垂直。可以理解的是,第二子止位面231即为第一转动体22 在X轴负方向的端面。第四子止位面232设于第一凹槽227的第一侧壁2272,并朝向第一端221。本实施例中的第四子止位面232的结构与图8所示实施例中的第二止位面23的结构相同。第二子止位面231的朝向与第四子止位面232的朝向相同。第二子止位面231用于与第一子止位面155止位,第四子止位面232用于与第三子止位面156止位。也即,第二子止位面231和第四子止位面232共同用于抵持基座10。
本实施例中,第二主摆臂24的第四止位面26包括第六子止位面261和第八子止位面262。第六子止位面261设于第二避让缺口258的底壁面。第六子止位面261设于第二端222背离第二端222的一面。第六子止位面261为平面,且第六子止位面261所在的平面与X方向垂直。可以理解的是,第六子止位面261即为第二转动体25在X轴负方向的端面。第八子止位面262设于第二凹槽257的第二侧壁2572,并朝向第三端251。本实施例中的第八子止位面262的结构与图8所示实施例中的第四止位面26的结构相同。第六子止位面261的朝向与第八子止位面262的朝向相同。第六子止位面261用于与第五子止位面165止位,第八子止位面262用于与第七子止位面166止位。也即,第六子止位面261和第八子止位面262共同用于抵持基座10。
请一并参阅图25,图25是图22所示转动机构100沿D-D方向的剖面结构示意图。
第一主摆臂21和第二主摆臂24均安装于基座10,并分别位于基座10在X轴的相对两侧。其中,第一主摆臂21的第一转动体22安装于第一转动槽。第一转动面224朝向支架12。第一滑轨171位于第一弧形槽225内,第一滑轨171的底面与第一弧形槽225的底壁相对并接触。第一导轨172位于第一凹槽227内,第一导轨172的顶面与第一凹槽227的第一底壁2271相对并接触,第一导轨172在Y方向的相对两个侧壁分别朝向第一凹槽227的相对两个第一侧壁2272。第一主摆臂21相对基座10转动时,第一转动体22可在第一转动槽内沿着第一滑轨171和第一导轨172的延伸方向滑动并转动。
第二主摆臂24的第二转动体25安装于第二转动槽。第二转动面254朝向支架12。第二滑轨173位于第二弧形槽255内,第二滑轨173的底面与第二弧形槽255的底壁相对并接触。第二导轨174位于第二凹槽257内,第二导轨174的顶面与第二凹槽257的第二底壁2571相对并接触,第二导轨174在Y方向的相对两个侧壁分别朝向第二凹槽257的相对两个第二侧壁2572。第二主摆臂24相对基座10转动时,第二转动体25可在第二转动槽内沿着第二滑轨173和第二导轨174的延伸方向滑动并转动。
转动机构100从折叠状态切换至展平状态时,第一主摆臂21顺时针旋转,第一弧形槽225的底壁沿着第一滑轨171的底面朝向靠近第一转动槽方向滑动,第一凹槽227的第一底壁2271沿着第一导轨172的顶面朝向靠近第一导轨172方向滑动,第四子止位面232朝向第三子止位面156方向移动并互相止位,第二子止位面231朝向第一子止位面155方向移动并互相止位。第二主摆臂24逆时针旋转,第二弧形槽255的底壁沿着第二滑轨173的底面朝向靠近第二转动槽方向滑动,第二凹槽257的第二底壁2571沿着第二导轨174的顶面141朝向靠近第二导轨174方向滑动,第八子止位面262朝向第七子止位面166方向移动并互相止位,第六子止位面261朝向第五子止位面165方向移动并互相止位,从而使转动机构100处于展平状态。
转动机构100处于展平状态时,第一导轨172背向第一内壁151的一端位于第一避让 孔226内,第二导轨174背向第三内壁161的一端位于第二避让孔256内。第一支撑面223、第二支撑面253与支撑板13的顶面141大致在同一平面内,共同用于支撑显示屏300。第四子止位面232与第三子止位面156相对且互相锁持,第四子止位面232与第三子止位面156可以正好接触,也可以互相抵持。第二子止位面231与第一子止位面155相对且互相锁持,第二子止位面231与第一子止位面155可以正好接触,也可以互相抵持。第八子止位面262与第七子止位面166相对且互相锁持,第八子止位面262与第七子止位面166可以正好接触,也可以互相抵持。第六子止位面261与第五子止位面165相对且互相锁持,第六子止位面261与第五子止位面165可以正好接触,也可以互相抵持。
本实施例中,通过在支撑板13设置第一子止位面155,第一主摆臂21设置第二子止位面231,使得转动机构100处于展平状态时,第一主摆臂21与支撑板13不仅通过第三子止位面156和第四子止位面232实现止位,还通过第一子止位面155和第二子止位面231实现止位,从而可以进一步阻止第一主摆臂21沿X方向朝向基座10方向继续移动,提升止位效果和止位精度,进一步减小甚至避免转动机构100处于展平状态下的虚位,提升用户的使用体验感;同时,也可以进一步避免显示屏300发生冗余和反拱,提升显示屏300的使用寿命,避免可折叠电子设备1000展开过度,对显示屏300造成损坏。
并且,本实施例中,通过在支撑板13设置第五子止位面165,第二主摆臂24设置第六子止位面261,使得转动机构100处于展平状态时,第二主摆臂24与支撑板13不仅通过第七子止位面166和第八子止位面262实现止位,还通过第五子止位面165和第六子止位面261实现止位,从而可以进一步阻止第二主摆臂24沿X方向朝向基座10方向继续移动,提升止位效果和止位精度,进一步减小甚至避免转动机构100处于展平状态下的虚位,提升用户的使用体验感。
同时,本实施例中,通过将第一子止位面155设于第一主摆臂21的端面,可以增大第一子止位面155的面积,从而可以增大第一主摆臂21与支撑板13的止位面积,进而可以进一步提升第一主摆臂21与支撑板13的止位效果和止位精度,并进一步减小甚至避免转动机构100处于展平状态下的虚位。
本实施例中,通过将第五子止位面165设于第二主摆臂24的端面,可以增大第五子止位面165的面积,从而可以增大第二主摆臂24与支撑板13的止位面积,进而可以进一步提升第二主摆臂24与支撑板13的止位效果和止位精度,并进一步减小甚至避免转动机构100处于展平状态下的虚位。
需要说明的是,图5所示转动机构100中的任意一个转动组件1中的主摆臂20的结构均可以与以上四个实施方式中的任意一个主摆臂20的结构相同,支撑板13的结构可以根据所采用的主摆臂20的结构做调整。
请参阅图26,图26是图5所示转动机构100的第一转动组件101中的固定架30的结构示意图。
第一转动组件101中的固定架30包括第一固定架31和第二固定架32。第一固定架31为具有厚度的长条形板状结构。第一固定架31设有第一导向滑槽311、第一轴孔312、第一滑槽313和第三轴孔314。第一导向滑槽311为弧形。第一导向滑槽311用于与第一压板41滑动连接。本实施例中,第一导向滑槽311为三个。三个第一导向滑槽311沿着第一固 定架31的长度方向(Y方向)间隔排布。第一轴孔312的延伸方向与X方向平行。第一轴孔312用于与第一转动组件101中的第一主摆臂21的转动连接。第三轴孔314与第一轴孔312间隔设置。第三轴孔314的延伸方向与X方向平行。第三轴孔314用于与第一转动组件101中的第三主摆臂27的转动连接。第一滑槽313设于第一固定架31的顶面。第一滑槽313的延伸方向与第一固定架31的宽度方向(X方向)平行。第一滑槽313用于与第一同步摆臂51滑动连接。
第二固定架32与第一固定架31为对称结构,且第二固定架32与第一固定架31关于参考面P镜像对称。第二固定架32设有第二导向滑槽321、第二轴孔322、第二滑槽323和第四轴孔324。第二导向滑槽321用于与第二压板42滑动连接。本实施例中,第二导向滑槽321为三个。三个第二导向滑槽321沿着第二固定架32的长度方向(Y方向)间隔排布。第二轴孔322的延伸方向与X方向平行。第二轴孔322用于与第一转动组件101中的第二主摆臂24的转动连接。第四轴孔324与第二轴孔322间隔设置。第四轴孔324的延伸方向与X方向平行。第四轴孔324用于与第一转动组件101中的第四主摆臂28的转动连接。第二滑槽323设于第二固定架32的顶面。第二滑槽323的延伸方向与第二固定架32的宽度方向(X方向)平行。第二滑槽323用于与第二同步摆臂52滑动连接。
请参阅图27,图27是图5所示转动机构100中压板40的部分结构示意图。
压板40包括第一压板41和第二压板42。第一压板41包括第一本体411和第一导向滑块412。第一本体411为长条形板状结构。第一导向滑块412为弧形。第一导向滑块412的结构与第一导向滑槽311的结构相匹配。第一导向滑块412固定于第一本体411的底面。第一导向滑块412用于安装在第一导向滑槽311内,以实现与第一固定架31的转动且滑动连接。本实施例中,第一导向滑块412有三个。三个第一导向滑块412沿第一本体411的长度方向(Y方向)间隔设置。并且,三个第一导向滑块412与三个第一导向滑槽311一一对应设置。
第一本体411设有第一滑孔413和第三滑孔414。第一滑孔413设于第一本体411的底面。第一滑孔413的深度方向与Y方向平行。第一滑孔413用于实现第一压板41与第一主摆臂21的转动且滑动连接。本实施例中,第一滑孔413为弯曲的水滴形状。这里所说的第一滑孔413的形状是指,第一滑孔413的截面的形状。其中,截面方向与第一滑孔413的深度方向垂直。在其他实施例中,第一滑孔413也可以是长条形或者其他异形结构。在这里不对第一滑孔413的形状做具体限制,只要能第一滑孔413能实现第一压板41与第一主摆臂21的转动且滑动即可。
第三滑孔414的形状与第一滑孔413的形状相同或者相似。第三滑孔414与第一滑孔413间隔设置。第三滑孔414用于实现第一压板41与第三主摆臂27的滑动且转动连接。
第二压板42和第一压板41为对称结构,且第二压板42与第一压板41关于参考面P镜像对称。第二压板42包括第二本体421和第二导向滑块422。第二本体421为长条形板状结构。第二导向滑块422为弧形。第二导向滑块422的结构与第二导向滑槽321的结构相匹配。第二导向滑块422固定于第二本体421的底面。第二导向滑块422用于安装在第二导向滑槽321内,以实现与第二固定架32的转动且滑动连接。本实施例中,第二导向滑块422有三个。三个第二导向滑块422沿第二本体421的长度方向(Y方向)间隔设置。 并且,三个第二导向滑块422与三个第二导向滑槽321一一对应设置。
第二本体421设有第二滑孔423和第四滑孔424。第二滑孔423设于第二本体421的底面。第二滑孔423的深度方向与Y方向平行。第二滑孔423用于实现第二主摆臂24与第二压板42的转动且滑动连接。本实施例中,第二滑孔423为弯曲的水滴形状。第四滑孔424的形状与第二滑孔423的形状相同或者相似。第四滑孔424与第二滑孔423间隔设置。第四滑孔424用于实现第二压板与第三主摆臂27的滑动且转动连接。
请一并参阅图5,第一固定架31、第一压板41、第一主摆臂21和第三主摆臂27均位于基座10的X轴正方向一侧。第一压板41安装于第一固定架31,且可相对第一固定架31滑动并转动。第一压板41的底面朝向第一固定架31的顶面。第一导向滑块412位于第一导向滑槽311内,且可沿着第一导向滑槽311滑动。第一主摆臂21的第一转动体22安装于第一转动槽内,第一轴座211朝向第一固定架31。转动机构100还包括第一转轴a和第二转轴b。第一转轴a安装于第一轴孔312内,且可在第一轴孔312内转动。第二转轴b安装于第一滑孔413内。第二转轴b可在第一滑孔413内绕着第二转轴b的轴向转动,也可在第一滑孔413内滑动。第三主摆臂27与第一主摆臂21间隔设置。第三主摆臂27和第一固定架31转动连接,与第一压板41转动且滑动连接。第三主摆臂27安装于第三转动槽,且可在第三转动槽内转动并滑动。第三主摆臂27与第一固定架31及第一压板41的连接方式,均可参照第一主摆臂21,在这里不做赘述。第一固定架31与第一壳体210固定连接。
第二固定架32、第二压板42、第二主摆臂24和第四主摆臂28均位于基座10的X轴负方向一侧。第二压板42安装于第二固定架32,且可相对第二固定架32滑动并转动。第二压板42的底面朝向第二固定架32的顶面。第二导向滑块422位于第二导向滑槽321内,且可沿着第二导向滑槽321滑动。第二主摆臂24的第二转动体25安装于第二转动槽内,第二轴座241朝向第二固定架32。转动机构100还包括第三转轴c和第四转轴d。第三转轴c安装于第二轴孔322内,且可在第二轴孔322内转动。第三转轴c安装于第二滑孔423内,且第二转动轴可在第二滑孔423内绕着第三转轴c的轴向转动,也可在第二滑孔423内滑动。第四主摆臂28与第二主摆臂24间隔设置。第四主摆臂28和第二固定架32转动连接,与第二压板42转动且滑动连接。第四主摆臂28安装于第四转动槽,且可在第四转动槽内转动并滑动。第四主摆臂28与第二固定架32及第二压板42的连接方式,均可参照第二主摆臂24,在这里不做赘述。第二固定架32与第二壳体220固定连接。
第一壳体210相对基座10转动可带动第一固定架31相对基座10转动,从而带动第一压板41相对基座10转动,并带动第一压板41沿着第一导向滑槽311相对第一固定架31转动并滑动。第一固定架31相对基座10转动还带动第一主摆臂21转动,并使第一转动体22在第一转动槽内转动并滑动,第一转轴a在第一轴孔312内转动,第二转轴b在第一滑孔413内转动并滑动。
第二壳体220相对基座10转动可带动第二固定架32相对基座10转动,从而带动第二压板42相对基座10转动,并带动第二压板42沿着第二导向滑槽321相对第二固定架32转动并滑动。第二固定架32相对基座10转动还带动第二主摆臂24转动,并使第二转动体25在第二转动槽内转动并滑动,第三转轴c在第二轴孔322内转动,第四转轴d在第二滑孔423内转动并滑动。
其中,第一壳体210和第二壳体220的转动方向相反,第一固定架31和第二固定架32的转动方向相反,第一压板41和第二压板42的转动方向相反,第一主摆臂21和第二主摆臂24的转动方向相反。例如,转动机构100从展平状态转动至折叠状态时,第一固定架31、第一压板41和第一主摆臂21逆时针转动,第二固定架32、第二压板42和第二主摆臂24顺时针转动。转动机构100从折叠状态转动至展平状态时,第一固定架31、第一压板41和第一主摆臂21顺时针转动,第二固定架32、第二压板42和第二主摆臂24逆时针转动。
本实施例中,通过设置第一固定架31和第二固定架32,并使第一固定架31与第一壳体210固定连接,第二固定架32与第二壳体220固定连接,从而可以增加固定架30与壳体的连接强度,提升可折叠电子设备1000转动的稳定性。
第一压板41和第二压板42均与显示屏300相对设置。也就是,显示屏300在第一压板41和第二压板42上的正投影完全覆盖第一压板41和第二压板42,或者部分覆盖第一压板41和第二压板42。第一压板41、第二压板42和支撑板13共同支撑显示屏300,从而可以增加显示屏300连接的稳定性,以保证显示屏300的良好显示。
本实施例中,通过第一固定架31转动带动第一压板41转动,第二固定架32转动带动第二压板42转动,从而实现显示屏300的折叠与展开。本实施例中,通过在第一压板41设置导向滑槽,在第一固定架31设置弧形导向滑块,可以实现第一压板41相对第一固定架31呈弧形滑动;通过在第二压板42设置导向滑槽,在第二固定架32设置弧形导向滑块,可以实现第二压板42可相对第二固定架32呈弧形滑动。当第一固定架31和第二固定架32转动时,第一压板41和第二压板42相对转动,并且第一压板41相对第一固定架31呈弧形滑动,第二压板42相对第二固定架32呈弧形滑动,进而可以使得第一压板41和第二压板42之间的夹角可调节,从而可以适应显示屏300的可折叠部分的折叠角度,以避免转动机构100处于折叠状态时,第一压板41和第二压板42对显示屏300造成挤压。也就是说,转动机构100处于折叠状态时,第一固定架31和第二固定架32之间的夹角与第一压板41和第二压板42之间的夹角不同,并且,第一压板41和第二压板42之间的夹角可以根据显示屏300的弯曲角度进行调节,以适应显示屏300的弯曲。
请参阅图28,图28是图6所示转动机构100的部分分解结构示意图。
同步组件50包括第一同步摆臂51、第二同步摆臂52、同步齿轮53和阻尼件60。同步齿轮53和阻尼件60均安装于基座10,第一同步摆臂51和第二同步摆臂52分别位于基座10在X方向的相对两侧,并与同步齿轮53啮合,同时与阻尼件60啮合。第一同步摆臂51转动时,带动同步齿轮53转动,从而带动第二同步摆臂52转动,以实现第一同步摆臂51和第二同步摆臂52的同步运动。并且,第一同步摆臂51和第二同步摆臂52转动时,抵持阻尼件60,使阻尼件60产生阻尼力,从而为转动机构100的转动提供阻尼力,为用户提供阻尼手感。
同步组件50还包括固定杆54。本实施例中,固定杆54有两个。两个固定杆54分别为第一固定杆541和第二固定杆542。第一固定杆541和第二固定杆542沿着X方向间隔设置。并且,第一固定杆541和第二固定杆542的延伸方向均与Y方向平行,且与基座10固定连接。
阻尼件60包括挡板61、第一阻尼板62、第二阻尼板63和阻尼弹簧64。第一阻尼板62设有第一铰接座621和第二铰接座622。第一铰接座621包括多个凸起和多个凹部。多个凸起和多个凹部交替排布,形成环形结构。第二铰接座622与第一铰接座621的结构相同或者相似。第一铰接座621和第二铰接座622沿X方向间隔设置。第二阻尼板63设有第三铰接座631和第四铰接座632。第三铰接座631和第四铰接座632沿X方向间隔设置。第三铰接座631和第四铰接座632与第一铰接座621的结构相同或者相似。
挡板61、第一阻尼板62和第二阻尼板63均套设在固定杆54上,并沿Y方向依次间隔排布。第一阻尼板62位于挡板61和第二阻尼板63之间。并且,挡板61和第二阻尼板63均与固定杆54固定连接。第一阻尼板62与固定杆54滑动连接,且可沿着固定杆54的长度方向移动。第一铰接座621和第二铰接座622朝向第二阻尼板63,第三铰接座631和第四铰接座632朝向第一阻尼板62。阻尼弹簧64安装于挡板61和第一阻尼板62之间,并与挡板61和第一阻尼板62固定连接。
本实施例中。同步齿轮53有两个。两个同步齿轮53分别为第三齿轮531和第四齿轮532。第三齿轮531和第四齿轮532沿X方向并排设置,且互相啮合。同步齿轮53设于两个固定杆54之间,并与第二阻尼板63转动连接。
第一同步摆臂51包括第一滑动体511、第一齿轮512和第一转动柱513。第一滑动体511为板状结构。第一滑动体511用于安装于第一滑槽313,以使第一同步摆臂51与第一固定架31滑动连接。第一转动柱513和第一齿轮512沿着第一滑动体511的宽度方向并排设置,且均连接于第一同步摆臂51的一端。第一转动柱513背向第一齿轮512的一端设有第一铰接体514。第一齿轮512背向第一转动柱513的一端设有第三铰接体515。第一铰接体514的结构与第一铰接座621的结构相匹配。第三铰接体515的结构与第三铰接座631的结构相匹配。第一转动柱513和第一齿轮512均为中空结构,且第一转动柱513和第一齿轮512的中轴线重合。
第一同步摆臂51安装于第一固定杆541。第一齿轮512和第一转动柱513套设在第一固定杆541的外周,并位于第一阻尼挡板61和第二阻尼挡板61之间。第一齿轮512与第三齿轮531啮合,第一铰接体514与第一铰接座621铰接,第三铰接体515与第三铰接座631铰接。
第二同步摆臂52包括第二滑动体521、第二齿轮522和第二转动柱523。第二滑动体521为板状结构。第二滑动体521用于安装于第二滑槽323,以使第二同步摆臂52与第二固定架32滑动连接。第二转动柱523和第二齿轮522沿着第二滑动体521的宽度方向并排设置,且均连接于第二同步摆臂52的一端。第二转动柱523背向第二齿轮522的一端设有第二铰接体524。第二齿轮522背向第二转动柱523的一端设有第四铰接体525。第二铰接体524的结构与第二铰接座622的结构相匹配,第四铰接体525的结构与第四铰接座632的结构相匹配。第二转动柱523和第二齿轮522均为中空结构,且第二转动柱523和第二齿轮522的中轴线重合。
第二同步摆臂52安装于第二固定杆542。第二齿轮522和第二转动柱523套设在第二固定杆542的外周,并位于第一阻尼挡板61和第二阻尼挡板61之间。第二齿轮522与第四齿轮532啮合,第二铰接体524与第二铰接座622铰接,第四铰接体525与第四铰接座 632铰接。
请一并参阅图5和图6,第一同步组件501安装于基座10,阻尼件60和同步齿轮53位于基座10内,转动杆与基座10固定连接,第一同步摆臂51和第二同步摆臂52分别位于基座10在X方向的相对两侧。其中,第一同步摆臂51位于基座10的X轴正方向,第二同步摆臂52位于基座10的X轴负方向。第一滑动体511安装于第一固定架31的第一滑槽313内,且可在第一滑槽313内滑动。第二滑动体521安装于第二固定架32的第二滑槽323内,且可在第二滑槽323内滑动。
转动机构100处于展平状态时,第一同步摆臂51和第二同步摆臂52相对展开,也即,第一同步摆臂51与第二同步摆臂52之间的夹角大致为180°。转动机构100处于折叠状态时,第一同步摆臂51与第二同步摆臂52相对折叠。也即,第一同步摆臂51与第二同步摆臂52大致平行设置。
第一固定架31相对基座10转动时,带动第一滑动体511相对基座10转动,同时在第一滑槽313内滑动。第一滑动体511相对基座10转动时,带动第一转动柱513和第一齿轮512绕第一转动杆转动,第一齿轮512转动带动第三齿轮531转动,第三齿轮531带动第四齿轮532转动,第四齿轮532带动第二齿轮522绕第二转动杆转动。第二齿轮522转动带动第二滑动体521相对基座10转动,并使第二滑动体521在第二滑槽323内滑动,同时带动第二固定架32相对基座10转动,从而实现第一同步摆臂51和第二同步摆臂52的同步转动,以及第一固定架31和第二固定架32的同步转动。其中,第一同步摆臂51和第二同步摆臂52的转动方向相反,第一固定架31与第二固定架32的转动方向相反。
第一同步摆臂51绕第一转动杆转动时,带动第一铰接体514和第三铰接体515转动,第三铰接体515反复抵持第三铰接座631,第一铰接体514反复抵持第一铰接座621。第二同步摆臂52绕第二转动杆转动时,带动第二铰接体524和第四铰接体525转动,第四铰接体525反复抵持第四铰接座632,第二铰接体524反复抵持第二铰接座622。第一铰接体514和第二铰接体524反复推动第一阻尼挡板61朝向阻尼弹簧64方向移动,并反复挤压阻尼弹簧64,使阻尼弹簧64产生弹性力。阻尼弹簧64的弹性回复力作用于第一同步摆臂51和第二同步摆臂52,从而为第一同步摆臂51和第二同步摆臂52的转动提供阻尼力,第一同步摆臂51的阻尼力经第一固定架31作用至第一壳体210,第二同步摆臂52的阻尼力经第二固定架32作用至第二壳体220,从而为用户提供阻尼手感。
本实施例中,通过设置同步组件50,并且第一同步摆臂51转动时,可通过同步齿轮53带动第二同步摆臂52转动,从而可以实现第一同步摆臂51和第二同步摆臂52的同步转动,进而实现转动机构100和可折叠电子设备1000的同步转动,以方便用户的使用,提升用户的使用体验。
本实施例中,通过设置阻尼件60,并且第一同步摆臂51和第二同步摆臂52相对基座10转动时,阻尼件60始终抵持第一同步摆臂51和第二同步摆臂52,产生阻尼力,从而为用户提供阻尼手感,提升用户的使用体验。
以上,仅为本申请的部分实施例和实施方式,本申请的保护范围不局限于此,任何熟知本领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以权利要求的保护范围为准。

Claims (15)

  1. 一种转动机构,其特征在于,包括:基座、第一主摆臂和第二主摆臂;
    所述基座设有第一转动槽和第二转动槽,所述第一转动槽和所述第二转动槽沿所述转动机构的宽度方向相对设置;所述基座包括第一止位面,所述第一止位面位于所述第一转动槽内,所述第一止位面所在的平面与所述基座的宽度方向相交;
    所述第一主摆臂包括第二止位面,所述第二止位面所在的平面与所述基座的宽度方向相交;
    所述第一主摆臂安装于所述第一转动槽,所述第二止位面朝向所述第一转动槽,且所述第一主摆臂能够沿所述第一转动槽转动并滑动;所述第二主摆臂安装于所述第二转动槽内,且所述第二主摆臂能够沿所述第二转动槽转动并滑动;
    所述第一主摆臂相对所述基座展开时,所述第一止位面与所述第二止位面相对设置,沿所述基座的宽度方向,所述第一主摆臂与所述基座止位,且所述第一主摆臂和所述第二主摆臂能够朝向相互靠近方向转动,以使所述第一主摆臂相对所述第二主摆臂折叠。
  2. 根据权利要求1所述的转动机构,其特征在于,所述第一主摆臂相对所述基座展开时,所述第一止位面与所述第二止位面相互抵持,且所述第一止位面和所述第二止位面之间的抵持力方向与所述基座的宽度方向一致。
  3. 根据权利要求2所述的转动机构,其特征在于,所述第一转动槽包括第一内壁,所述第一内壁背向所述第二转动槽设置,所述第一内壁包括所述第一止位面;
    所述基座还包括第一导轨,所述第一导轨固定于所述第一内壁,并朝向背离所述第二转动槽方向延伸,所述第一导轨与所述第一止位面并排设置;
    所述第一主摆臂包括第一端,所述第一主摆臂设有第一凹槽,所述第一凹槽的开口位于所述第一主摆臂的顶面或底面,且所述第一凹槽贯穿所述第一端;
    所述第一主摆臂安装于所述基座时,所述第一端朝向所述第一转动槽,至少部分所述第一导轨位于所述第一凹槽内,且所述第一主摆臂能够沿所述第一导轨在所述第一转动槽内转动并滑动。
  4. 根据权利要求3所述的转动机构,其特征在于,沿所述基座的长度方向,所述第一导轨与所述第一止位面并排设置;所述第一凹槽的开口位于所述第一主摆臂的底面,所述第二止位面设于所述第一凹槽的侧壁,并朝向所述第一端;
    所述第一主摆臂安装于所述基座时,所述第一导轨位于所述第一凹槽背向所述基座的顶面的一侧,且所述第一导轨的顶面与所述凹槽的底壁面相对并接触。
  5. 根据权利要求3所述的转动机构,其特征在于,沿所述基座的厚度方向,所述第一导轨与所述第一止位面并排设置,且所述第一导轨位于所述第一止位面靠近所述基座的顶面的一侧;所述第一凹槽的开口位于所述第一主摆臂的顶面,所述第二止位面设于所述第一端,并连接于所述第一主摆臂的底面和所述第一凹槽的底壁面之间;
    所述第一主摆臂安装于所述基座时,所述第一导轨位于所述第一凹槽靠近所述基座的顶面的一侧,且所述第一导轨的底面与所述凹槽的底壁面相对并接触。
  6. 根据权利要求3所述的转动机构,其特征在于,所述第一止位面包括第一子止位面, 沿所述基座的厚度方向,所述第一子止位面与所述第一导轨并排设置,且所述第一子止位面位于所述第一导轨靠近所述基座的顶面的一侧;
    所述第一凹槽的开口位于所述第一主摆臂的底面,所述第二止位面包括第二子止位面,所述第二子止位面设于所述第一端,并连接于所述第一主摆臂的顶面和所述第一凹槽的底壁面之间;
    所述第一主摆臂安装于所述基座时,所述第一导轨位于所述第一凹槽背向所述基座的顶面的一侧,且所述第一导轨的顶面与所述第一凹槽的底壁面相对并接触;
    所述第一主摆臂相对所述基座展开时,所述第一子止位面与所述第二子止位面相对设置。
  7. 根据权利要求6所述的转动机构,其特征在于,所述第一止位面还包括第三子止位面,沿所述基座的长度方向,所述第三子止位面与所述第一导轨并排设置;所述第一主摆臂还包括第四子止位面,所述第四子止位面设于所述第一凹槽的侧壁,并朝向所述第一端;
    所述第一主摆臂相对所述基座展开时,所述第三子止位面与所述第四子止位面相对设置。
  8. 根据权利要求3所述的转动机构,其特征在于,所述第一止位面包括第一子止位面,沿所述基座的长度方向,所述第一导轨与所述第一子止位面并排设置;
    所述第二止位面包括第二子止位面,所述第二子止位面设于所述第一主摆臂的一端,并连接于所述第一主摆臂的顶面和所述第一主摆臂的底面之间;
    所述第一主摆臂相对所述基座展开时,所述第一子止位面与所述第二子止位面相对设置。
  9. 根据权利要求8所述的转动机构,其特征在于,所述第一止位面还包括第三子止位面,沿所述基座的长度方向,所述第三子止位面与所述第一止位面及所述第一导轨并排设置,且所述第三子止位面位于所述第一子止位面和所述第一导轨之间;
    所述第一凹槽的开口位于所述第一主摆臂的底面;所述第二止位面还包括第四子止位面,所述第四子止位面设于所述第一凹槽的侧壁,并朝向所述第一端;
    所述第一主摆臂安装于所述基座时,所述第一导轨位于所述第一凹槽背向所述基座的顶面的一侧,且所述第一导轨的顶面与所述第一凹槽的底壁面相对并接触;
    所述第一主摆臂相对所述基座展开时,所述第三子止位面与所述第四子止位面相对设置。
  10. 根据权利要求1至9任一项所述的转动机构,其特征在于,所述第一止位面与所述第二止位面过盈配合。
  11. 根据权利要求10所述的转动机构,其特征在于,所述第一止位面与所述第二止位面的过盈量为0mm~0.1mm。
  12. 根据权利要求1至9任一项所述的转动机构,其特征在于,所述转动机构还包括耐磨层,所述耐磨层设于所述第一止位面或/和所述第二止位面。
  13. 根据权利要求1至9任一项所述的转动机构,其特征在于,所述转动机构具有折叠状态和展开状态,所述转动机构由所述展开状态切换至所述折叠状态时,所述第一主摆臂沿第一方向转动,所述转动机构处于所述展开状态时,所述第一主摆臂与所述基座在第 二方向上止位;其中,所述第二方向与所述第一方向相反。
  14. 根据权利要求1至9任一项所述的转动机构,其特征在于,所述基座包括轴盖和支撑板,所述轴盖与所述支撑板层叠设置,且彼此固定连接;所述第一主摆臂和所述第二主摆臂相对展开时,所述第一主摆臂的顶面和所述第二主摆臂的顶面均与所述支撑板背向所述轴盖的表面平齐。
  15. 一种可折叠电子设备,其特征在于,包括第一壳体、第二壳体、显示屏和如权利要求1至14任一项所述的转动机构,所述转动机构连接所述第一壳体和所述第二壳体之间,所述显示屏安装于所述第一壳体、所述第二壳体及所述转动机构,所述转动机构转动时,所述第一壳体和所述第二壳体相对转动,以带动所述显示屏弯折或展开。
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