WO2023274233A1 - 转轴机构和电子设备 - Google Patents

转轴机构和电子设备 Download PDF

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Publication number
WO2023274233A1
WO2023274233A1 PCT/CN2022/101928 CN2022101928W WO2023274233A1 WO 2023274233 A1 WO2023274233 A1 WO 2023274233A1 CN 2022101928 W CN2022101928 W CN 2022101928W WO 2023274233 A1 WO2023274233 A1 WO 2023274233A1
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WO
WIPO (PCT)
Prior art keywords
door panel
swing arm
main body
arc
shaft mechanism
Prior art date
Application number
PCT/CN2022/101928
Other languages
English (en)
French (fr)
Inventor
吴伟峰
詹强
黄涛
于卫东
林杨明
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP22832047.9A priority Critical patent/EP4343161A1/en
Publication of WO2023274233A1 publication Critical patent/WO2023274233A1/zh

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    • 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
    • F16C11/045Pivotal connections with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin
    • 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

Definitions

  • the present application relates to the technical field of electronic equipment, in particular to a rotating shaft mechanism and electronic equipment having the rotating shaft mechanism.
  • foldable screens are widely used in mobile terminals, such as foldable mobile phones, foldable tablets, etc.
  • foldable screens are mainly realized through the combination of flexible screens and hinge mechanisms.
  • the flexible screen may be damaged due to repeated folding of the flexible screen.
  • the folded part of the flexible screen needs to have a certain curvature deformation.
  • the uniformity of the curvature of the folded part of the flexible screen also has an important impact on prolonging its life.
  • the key to realize the curvature deformation of the folded part of the flexible screen and the uniformity of the curvature is the rotating shaft mechanism of the electronic device. Therefore, how to design the rotating shaft mechanism to improve the reliability of the flexible screen is an urgent problem to be solved at present.
  • the present application provides a hinge mechanism and an electronic device having the hinge mechanism, the main purpose of which is to provide a hinge mechanism whose length can change as the electronic device is folded and unfolded.
  • the present application provides a hinge mechanism, which can be applied to foldable electronic devices with flexible screens, for example, can be applied to foldable screen mobile phones, foldable screen tablet computers and other devices.
  • the rotating shaft mechanism includes a main body, a first door panel, a second door panel, an intermediate door panel, and a first swing arm and a second swing arm.
  • the first door panel, the second door panel and the middle door panel are located on the same side of the main body, the first door panel and the second door panel are oppositely arranged on both sides of the middle door panel, and the first swing arm and the second swing arm are oppositely arranged on both sides of the main body.
  • One end of the first swing arm close to the main body is rotationally connected to the main body, one end of the first door panel is rotationally connected to the end of the first swing arm away from the main body, the other end is slidingly connected to the main body, and the end of the second swing arm close to the main body is rotationally connected to the main body.
  • One end of the second door panel is rotationally connected with an end of the second swing arm away from the main body, and the other end is slidably connected with the main body.
  • the first swing arm, the main body and the first door panel can form a crank slider mechanism
  • the second swing arm, the main body and the second door panel also form a crank slider mechanism.
  • At least one of the first door panel, the second door panel, the first swing arm and the second swing arm is provided with a support portion, and when the first swing arm and the second swing arm rotate in opposite directions, the first swing arm drives the first door panel The end close to the main body moves in a direction away from the main body, and the second swing arm drives the end of the second door panel close to the main body to move in a direction away from the main body, so that the support part is separated from the middle door panel, and the middle door panel moves in a direction close to the main body;
  • the first swing arm and the second swing arm rotate away from each other, the first swing arm drives the end of the first door panel close to the main body to move in a direction close to the main body, and the second swing arm drives the end of the second door panel close to the main body to move along the direction close to the main body. direction, so that the supporting part abuts against the middle door panel, and drives the middle door panel to move away from the main body.
  • the rotating shaft mechanism since the first door panel and the second door panel located on both sides of the middle door panel can rotate in the opposite direction relative to the main body driven by the corresponding first swing arm and the second swing arm, in this way, the When the flexible screen is arranged on the side away from the main body of the first door panel, the middle door panel and the second door panel, when the first door panel and the second door panel rotate relative to the main body, the folding of the electronic device can be realized; on the contrary, when the first door panel When the second door panel rotates away from the main body, the electronic equipment can be unfolded.
  • the middle door panel located between the first door panel and the second door panel is not fixed, but can move relative to the main body.
  • the first door panel and the second door panel rotate in opposite directions, that is, when the electronic device is switched from the flattened state to the folded state, the middle door panel moves close to the main body.
  • the length dimension of the hinge mechanism can be increased, and the first door panel, the middle door panel And the second door panel will surround the accommodating cavity close to the triangular structure, and the part of the flexible screen that is being folded and close to the rotating shaft mechanism will be in the formed accommodating cavity without being squeezed. Therefore, the flexible screen can be avoided due to repeated folding. The phenomenon of damage due to pressure.
  • the middle door panel moves away from the main body, so that the previously increased length of the hinge mechanism can be shortened until it moves to the first
  • the door panel, the middle door panel and the second door panel are in the same plane, so as to support the flattened flexible screen.
  • the driving structure for driving the movement of the middle door panel is realized by the support part of at least one structure among the first door panel, the second door panel, the first swing arm and the second swing arm. That is to say, when the first door panel, the second door panel, the first swing arm and the second swing arm rotate, the support part abuts and separates from the middle door panel, and the middle door panel is driven closer to or farther away from the main body.
  • the present application adopts mechanical linkage, which can simplify the structure of the entire rotating shaft mechanism and is easy to implement.
  • the first swing arm and the second swing arm rotate toward each other to drive the first door panel and the second door panel to rotate to the first position, the first door panel, the middle door panel and the second door panel form a Screen space.
  • the first position here can be understood as the position of the first door panel and the second door panel when the electronic device is in the closed state.
  • the first door panel and the second door panel can form a preset angle, and the middle door panel sinks to the preset angle. If the position is set, a triangular but open space can be formed between the three, and the bending part of the flexible screen is accommodated in this space.
  • the first swing arm and the second swing arm rotate away from each other, and when the first door panel and the second door panel are driven to rotate away from each other to the second position, the first door panel, the middle door panel and the second door panel in the same plane to form a support surface.
  • the first door panel, the middle door panel and the second door panel can be on the same plane to support the flattened flexible screen. to operate.
  • both the first door panel and the second door panel are provided with supporting parts.
  • both the first swing arm and the second swing arm are provided with support parts.
  • the first door panel, the second door panel, the first swing arm, and the second swing arm are all provided with support parts.
  • first door panel and the second door panel are symmetrically arranged on both sides of the middle door panel, and the first swing arm and the second swing arm are symmetrically arranged on both sides of the main body, in this way, the balance of supporting the middle door panel can be improved, so that the middle The door panel moves steadily.
  • the first swing arm and the second swing arm during the relative movement of the first swing arm and the second swing arm, it includes the first stage, the second stage and the third stage that appear in sequence; in the first stage, the support of the first door panel Both the support part of the first swing arm and the support part of the second door panel are in contact with the middle door panel, and the support part of the first swing arm and the support part of the second swing arm are separated from the middle door panel; in the second stage, the support part of the first swing arm and the second swing arm The supporting parts of the two swing arms are all in contact with the middle door panel; in the third stage, the supporting part of the first door panel, the supporting part of the second door panel, the supporting part of the first swing arm and the supporting part of the second swing arm are all in contact with the middle door panel. Door panels separated.
  • the moving speed of the middle door panel can be controlled.
  • the middle door panel when the electronic device is in the initial stage of moving from the flattened state to the closed state, the middle door panel can move quickly under the control of the support part of the first door panel and the support part of the second door panel, so as to avoid enough accommodation space to prevent the flexible screen Arching phenomenon occurs, and as the flexible screen continues to fold, the middle door panel will reduce the moving speed under the control of the support part of the first swing arm and the support part of the second swing arm, so as to prevent the middle door panel from being withdrawn too quickly and causing flexibility. There is a large stress at the bending part of the screen, and it is even damaged by pulling.
  • the shaft mechanism further includes a retractable pulling member, one end of the pulling member is fixed to the main body, and the other end is fixed to the middle door panel, and the pulling member is used to drive the middle door panel toward the main body move.
  • the triangular accommodation space structure prevents the middle door panel from moving away from the main body and squeezes the flexible screen.
  • the retractable pulling member includes a spring.
  • other elastic structures are also possible.
  • the rotating shaft mechanism further includes a guide structure for guiding the middle door panel to move relative to the main body in a direction perpendicular to the length direction of the middle door panel.
  • the guide structure is introduced to guide the up and down linear movement of the middle door panel.
  • the guide structure includes: a guide hole set in the main body and a guide block slidably arranged in the guide hole; the guide hole extends in a direction perpendicular to the length direction of the middle door panel; the guide block and The middle door panel is fixed.
  • the guide block and the middle door panel are relatively fixed, the guide hole is opened on the main body, and the middle door panel is guided to move linearly by the guide block sliding in the guide hole.
  • the guide block is arranged on the main body, and the guide hole is opened on the middle door panel. In a word, the linear movement of the middle door panel is guided by the sliding fit of the guide block and the guide hole.
  • the opening of the guide hole close to the middle door panel has a shielding part
  • the pulling member is arranged in the guide hole
  • the guide block has a blind hole opened from the surface close to the middle door panel toward the bottom surface of the guide hole , one end of the pulling member is fixed to the shielding portion, and the other end abuts against the bottom surface of the blind hole.
  • the guide hole not only has the function of accommodating the guide block, but also hides the pulling member therein.
  • each of the first door panel, the second door panel and the middle door panel has two opposite surfaces, one of which serves as a supporting surface to support the flexible screen, and the other surface faces away from the supporting surface.
  • the surface of the middle door panel away from the supporting surface is opposite to the main body.
  • the side of the first door panel and the second door panel facing away from the support surface has an extension part, the extension part extends toward the side of the middle door panel opposite to the main body, and the extension part has a first boss protruding toward the middle door panel to form a support part of the first door panel and the support portion of the second door panel.
  • the extension part of the first door panel and the extension part of the second door panel abut against the middle door panel to drive the middle door panel to move relative to the main body.
  • the extension part of the first door panel and the extension part of the second door panel are provided with a door panel chute, a sliding shaft is arranged in the door panel chute, the sliding shaft is fixedly connected with the main body, and the sliding shaft is opposite to the main body.
  • the door panel chute slides to realize the sliding connection between the first door panel and the second door panel and the main body.
  • the middle door panel is driven to move, and at the same time, a slide can also be set on the extension of the first door panel and the second door panel.
  • the groove realizes the sliding connection between the first door panel and the main body. Compared with the structure separately provided for opening the door panel chute, the structure provided by the present application is more simplified.
  • the ends of the first swing arm and the second swing arm close to the main body have a second boss protruding toward a surface of the middle door panel opposite to the main body, so as to form a support for the first swing arm part and the support part of the second swing arm.
  • the second bosses are provided on both the first swing arm and the second swing arm to abut against the middle door panel to drive the middle door panel to move relative to the main body.
  • the main body is provided with a first arc-shaped protrusion and a second arc-shaped protrusion; an end of the first swing arm close to the main body is formed with an arc-shaped first arc arm, the second An arc arm is provided with a first arc-shaped slot for assembling the first arc-shaped protrusion; the first arc-shaped protrusion slides relative to the first arc-shaped slot to realize the rotational connection between the first swing arm and the main body; the second One end of the swing arm close to the main body is formed with a second arc arm in an arc-shaped structure, and a second arc-shaped slot for assembling the second arc-shaped protrusion is opened on the second arc-shaped arm; the second arc-shaped protrusion is opposite to the first The two arc-shaped slots slide to realize the rotational connection between the second swing arm and the main body; second bosses are arranged on the first arc arm and the second arc arm.
  • the side of the first door panel opposite to the main body has a first door panel arc-shaped projection extending toward the first swing arm, and the first swing arm is provided with an arc-shaped projection for assembling the first door panel
  • the third arc-shaped slot of the first door panel slides relative to the third arc-shaped slot to realize the rotational connection between the first door panel and the first swing arm
  • the side of the second door panel opposite to the main body has a The second door panel arc-shaped protrusion extended by the arm, the second swing arm is provided with a fourth arc-shaped slot for assembling the second door panel arc-shaped protrusion, and the second door panel arc-shaped protrusion slides relative to the fourth arc-shaped slot , realizing the rotational connection between the second door panel and the second swing arm.
  • the rotational connection between the first door panel and the first swing arm is realized through the rotational cooperation of the arc-shaped projection and the arc-shaped slot, and the second door panel
  • the rotational connection with the second swing arm is simple in structure and convenient in implementation.
  • the rotating shaft mechanism further includes a synchronous structure, which is respectively slidably connected to the first swing arm and the second swing arm, and the synchronous structure is used to realize the synchronous reaction of the first swing arm and the second swing arm. to turn.
  • the synchronous reverse rotation of the first door panel and the second door panel can be realized, that is, the synchronous phase-to-phase rotation and the synchronous phase-away rotation of the first door panel and the second door panel can be realized.
  • the rotating shaft mechanism of this structure is applied in electronic Devices can significantly improve user experience.
  • the synchronous structure includes a gear transmission structure, for example, including a first gear connecting rod, a first driven gear, a second driven gear and a second gear connecting rod that are sequentially engaged externally, specifically , one end of the first gear connecting rod is slidingly connected with the end of the first swing arm away from the main body, and the other end forms the first meshing teeth, the first driven gear is externally meshed with the first meshing teeth, the second driven gear is connected with the first The driven gear is externally meshed, and one end of the second gear connecting rod is slidingly connected to the end of the second swing arm away from the main body, and the other end forms a second meshing tooth, and the second driven gear is externally meshing with the second meshing tooth.
  • a gear transmission structure for example, including a first gear connecting rod, a first driven gear, a second driven gear and a second gear connecting rod that are sequentially engaged externally, specifically , one end of the first gear connecting rod is slidingly connected with the end of the first swing arm away from the main body, and the other
  • the rotating shaft mechanism further includes an end cover, and the end cover is arranged on a side of the main body away from the first door panel, the middle door panel and the second door panel, and the main body and the end cover are relatively fixed.
  • the shaft mechanism including the end cover When the shaft mechanism including the end cover is applied to electronic equipment, by setting the end cover, the end cover can be exposed when the first shell and the second shell are folded, avoiding the appearance of a gap, which can improve the overall electronic The appearance of the equipment is aesthetically pleasing.
  • the present application also provides an electronic device, including a first housing and a second housing, a flexible screen, and the shaft mechanism in any implementation manner of the above-mentioned first aspect, wherein the first housing and the first The swing arm is fixedly connected, the second casing is fixedly connected to the second swing arm; the first casing includes a first surface, the second casing includes a second surface, and the flexible screen continuously covers the first surface of the first casing and the rotating shaft The mechanism and the second surface of the second housing, and the flexible screen is respectively fixedly connected to the first surface of the first housing and the second surface of the second housing.
  • the rotating shaft mechanism in the above first aspect since the rotating shaft mechanism in the above first aspect is included, when the first housing and the second housing move toward each other, not only the first door panel and the second door panel in the rotating shaft mechanism will produce During the rotation movement, at the same time, the middle door panel between the first door panel and the second door panel will move towards the main body, so as to provide enough accommodation space for the flexible screen during folding and prevent the flexible screen from being squeezed and deformed.
  • the middle door panel will move away from the main body until the first door panel, the middle door panel and the second door panel are in the same plane to support the flattening flexible screen.
  • the driving structure that drives the middle door panel to move adopts a support portion on at least one of the rotating first swing arm, the first door panel, the second swing arm or the second door panel, so that the structure of the rotating shaft mechanism can be simplified. structure.
  • the flexible screen is composed of a first area, a second area, a third area, a fourth area and a fifth area arranged continuously; the first area is fixed to the first surface of the first housing Connection; the second area is fixedly connected to the surface of the first door panel facing the flexible screen; the third area is arranged opposite to the middle door panel, and the third area can move relative to the middle door panel; the fourth area is connected to the surface of the second door panel facing the flexible screen Fixedly connected; the fifth area is fixedly connected with the second surface of the second housing.
  • the hinge mechanism includes an end cover; when the electronic device is flattened, the end cover is hidden in the first housing and the second housing; when the electronic device is folded, the end cover is exposed on the first outside the casing and the second casing to fill the gap between the first casing and the second casing.
  • the first casing and the second casing are seamlessly closed, thereby improving the appearance of the display device .
  • the electronic device includes a mobile terminal, for example, it may be a foldable mobile phone, a foldable tablet, or a foldable e-book.
  • Figure 1a is an exploded view of an electronic device provided in an embodiment of the present application when it is in a flattened state;
  • Fig. 1b is an exploded view of an electronic device provided in an embodiment of the present application when the flexible screen is removed when it is in a flattened state;
  • Fig. 1c is a back view of an electronic device provided in an embodiment of the present application when it is in a flattened state;
  • FIG. 2 is a structural diagram of an electronic device provided in an embodiment of the present application when it is in a flattened state;
  • Fig. 3a is a structural diagram of an electronic device provided in an embodiment of the present application when it is in an intermediate state
  • Fig. 3b is a side view of an electronic device provided in an embodiment of the present application when it is in an intermediate state
  • FIG. 4 is a structural diagram of an electronic device provided in an embodiment of the present application when it is in a closed state
  • Fig. 5a is a schematic structural diagram of the outward-folding electronic device when it is in a flattened state
  • Fig. 5b is a schematic structural diagram of the fold-out electronic device when it is in a closed state
  • Fig. 6a is a schematic structural diagram of an inward-folding electronic device in a flattened state
  • Fig. 6b is a schematic structural diagram of the fold-in electronic device when it is in a closed state
  • Fig. 7a is a state diagram of the flexible screen and the rotating shaft mechanism when the electronic device provided by the embodiment of the present application is in a flattened state;
  • Fig. 7b is a state diagram of the flexible screen and the shaft mechanism when the electronic device provided by the embodiment of the present application is in a closed state;
  • Fig. 8 is a schematic structural diagram of a rotating shaft mechanism when an existing electronic device is in a flattened state
  • Fig. 9 is an exploded view of a rotating shaft mechanism provided by the embodiment of the present application.
  • Fig. 10 is a schematic diagram of the crank sliding formed by the first swing arm, the main body and the first door panel in the rotating shaft mechanism provided by the embodiment of the present application;
  • Fig. 11 is a state diagram at a certain moment during the movement of the crank sliding formed by the first swing arm, the main body and the first door panel in the rotating shaft mechanism provided by the embodiment of the present application;
  • Fig. 12 is a schematic diagram of the connection relationship between the first swing arm and the second swing arm when they are flattened according to the embodiment of the present application;
  • Fig. 13 is a schematic diagram of the connection relationship between the first swing arm and the second swing arm at a position between flattening and folding provided by the embodiment of the present application;
  • Fig. 14 is a schematic diagram of the connection relationship between the first swing arm and the second swing arm when folded according to the embodiment of the present application;
  • Fig. 15 is a structural diagram of a part of a first swing arm provided by an embodiment of the present application.
  • Fig. 16 is a structural diagram of a part of a main body provided by an embodiment of the present application.
  • Fig. 17 is a structural diagram of a first swing arm provided in an embodiment of the present application.
  • Fig. 18 is a structural diagram of a part of a first swing arm provided by an embodiment of the present application.
  • Fig. 19 is a structural diagram of a first door panel provided by the embodiment of the present application.
  • Fig. 20 is a schematic diagram of the connection relationship between the first door panel, the first swing arm and the second door panel when flattened according to the embodiment of the present application;
  • Fig. 21 is a schematic diagram of the connection relationship between the first door panel, the first swing arm and the second door panel at one position between flattening and folding provided by the embodiment of the present application;
  • Fig. 22 is a schematic diagram of the connection relationship between the first door panel, the first swing arm and the second door panel when they are folded according to the embodiment of the present application;
  • Fig. 23a is a structural diagram of a first door panel chute provided on the first door panel according to an embodiment of the present application.
  • Fig. 23b is another structural view of the first door panel chute provided on the first door panel according to the embodiment of the present application.
  • Fig. 23c is another structural view of the first door panel chute provided on the first door panel according to the embodiment of the present application.
  • Fig. 24 is a schematic diagram of a connection relationship between an intermediate door panel, a main body and a pulling member provided in the embodiment of the present application;
  • Fig. 25 is a schematic diagram of the connection relationship of the first swing arm driving the middle door panel to move according to the embodiment of the present application;
  • Fig. 26 is a structural diagram of a part of a first swing arm provided by an embodiment of the present application.
  • Fig. 27 is a schematic diagram of a connection relationship in which the first door panel drives the middle door panel to move according to the embodiment of the present application;
  • Fig. 28 is a simple schematic diagram of a first swing arm driving the middle door panel to move according to the embodiment of the present application;
  • Fig. 29 is an exploded view of an intermediate door panel, main body and guide structure provided by the embodiment of the present application.
  • Fig. 30 is a cross-sectional view of a connection between an intermediate door panel, a main body and a guide structure provided by an embodiment of the present application;
  • FIG. 31 is a structural diagram of a synchronization structure provided by an embodiment of the present application.
  • Fig. 32 is a schematic diagram of the connection relationship between a synchronization structure and the first swing arm and the second swing arm provided by the embodiment of the present application;
  • FIG. 33 is a structural diagram with two sets of synchronization structures provided by the embodiment of the present application.
  • Foldable electronic devices may include various electronic devices that have a flexible screen and can change the unfolded or folded configuration of the flexible screen and itself. Under different usage requirements, the foldable electronic device can be unfolded to a flat state, can also be folded to a closed state, and can also be in an intermediate state between the flat state and the closed state. That is to say, a foldable electronic device has at least two states, namely, a flattened state and a closed state. In some cases, it may further include a third state, that is, an intermediate state between the flattened state and the closed state. It can be understood that the intermediate state is not the only state, and may be any one or more states between the flattened state and the closed state of the electronic device.
  • foldable electronic devices may be, but not limited to, mobile phones, tablet computers, notebook computers, e-book readers, cameras, wearable devices, home electronic devices, and the like.
  • a foldable electronic device is described by taking a mobile phone as an example.
  • Figure 1a is an exploded view of a foldable electronic device provided by an embodiment of the present application
  • Figure 1b is an exploded view of a foldable electronic device provided by an embodiment of the present application without the flexible screen.
  • the foldable electronic device may include a hinge mechanism 1000 , a first housing 2000 , a second housing 3000 and a flexible screen 4000 .
  • first housing 2000 and the second housing 3000 are arranged on both sides of the rotating shaft mechanism 1000 and are respectively connected with the rotating shaft mechanism 1000, and the rotating shaft mechanism 1000 can move so that the first housing 2000 and the second housing 3000 are folded relative to each other. or relatively expanded.
  • the first housing 2000 and/or the second housing 3000 can respectively form an installation space for installing electronic components such as a circuit board, a battery, a receiver, a speaker, and a camera of an electronic device.
  • the circuit board can integrate electronic components such as the main controller, storage unit, antenna module, and power management module of electronic equipment
  • the battery can provide power for electronic components such as the flexible screen 4000, circuit board, receiver, speaker, and camera.
  • the first casing 2000 and the second casing 3000 may have equal thicknesses or unequal thicknesses, which is not limited in this embodiment of the present application.
  • both the first housing 2000 and the second housing 3000 may be provided with installation spaces, and the electronic components of the above-mentioned electronic equipment are distributed in the housings on both sides.
  • an installation space may only be provided in the first housing 2000, and the electronic components of the above-mentioned electronic equipment are concentrated and distributed in the first housing 2000; or, the first housing 2000 and the second housing Both housings 3000 can be provided with installation space, but most of the components of the above-mentioned electronic equipment are arranged in the first housing 2000, and a small part is arranged in the second housing 3000, making the second housing 3000 lighter , so that it can be folded and unfolded more conveniently.
  • FIG. 1c is a schematic diagram of the back structure of a foldable electronic device provided by an embodiment of the present application.
  • the first housing 2000 has a first surface 2001 and a third surface 2002 opposite to the first surface 2001
  • the second housing 3000 has a second surface 3001 and a third surface 2002 opposite to the second surface 3001.
  • the fourth surface 3002 is provided.
  • the first surface 2001 of the first housing 2000 and the second surface 3001 of the second housing 3000 can be jointly used to support the flexible screen 4000, while the third surface 2002 of the first housing 2000 and the second surface 3000 of the second housing 3000
  • the fourth surface 3002 can be used as an appearance surface of an electronic device.
  • a display screen may also be provided on the third surface 2002 of the first housing 2000, and/or the fourth surface 3002 of the second housing 3000, and the display screen may be a flexible screen or non-flexible screen, which is not specifically limited here.
  • FIG. 2 is a schematic structural diagram of an electronic device in which the first casing 2000 and the second casing 3000 are relatively unfolded to a flattened state.
  • the first surface 2001 of the first housing 2000 and the The second surface 3001 is on the same plane, and the angle between the first surface 2001 and the second surface 3001 can be approximately 180° at this time (it is also allowed to have a certain angle tolerance, the angle between the first surface 2001 and the second surface 3001
  • the included angle is, for example, 165°, 177° or 185°).
  • FIG. 3a shows a schematic structural view of the electronic device in which the first housing 2000 and the second housing 3000 are relatively rotated (expanded or folded) to an intermediate state.
  • FIG. 3 b shows a side view of the electronic device in which the first housing 2000 and the second housing 3000 are relatively rotated (expanded or folded) to an intermediate state.
  • the flexible screen 4000 is omitted in order to illustrate the shape of the two housings in the intermediate state.
  • the electronic device can be in any state between the flattened state and the closed state.
  • the angle between the first surface 2001 of the first housing 2000 and the second surface 3001 of the second housing 3000 can be, for example, It is 130° ⁇ 150°.
  • FIG. 4 is a schematic structural diagram of an electronic device in which the first casing 2000 and the second casing 3000 are folded relative to each other to a closed state. 1a and 4 together, when the first housing 2000 and the second housing 3000 are in a closed state, the first surface 2001 of the first housing 2000 and the second surface 3001 of the second housing 3000 face each other Or away from each other (specifically related to the folding method), at this time, there may be a slight angle between the first surface 2001 of the first casing 2000 and the second surface 3001 of the second casing 3000 or they may be parallel to each other so that the two casings can Fully closed (A certain angle tolerance is also allowed).
  • the flexible display 4000 can be used to display information and provide an interactive interface for the user.
  • the flexible display 4000 can be, but not limited to, an organic light-emitting diode (OLED) display, an active matrix Organic light-emitting diode or active-matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED) display, mini organic light-emitting diode (mini organic light-emitting diode) display, micro light-emitting diode (micro organic light-emitting diode) emitting diode) display, micro organic light-emitting diode (micro organic light-emitting diode) display, quantum dot light emitting diodes (quantum dot light emitting diodes, QLED) display, etc.
  • OLED organic light-emitting diode
  • AMOLED active matrix organic light-emitting diode
  • mini organic light-emitting diode mini organic light-emitting di
  • the flexible screen 4000 continuously covers the first surface 2001 of the first housing 2000 , the hinge mechanism 1000 and the second surface 3001 of the second housing 3000 of the foldable electronic device.
  • the flexible screen 4000 can be divided into continuous regions A, B, C, D and E, wherein regions B, C and D include bent parts when folded.
  • Area A corresponds to the first surface 2001 of the first housing 2000, which can be fixedly connected to the first surface 2001 of the first housing 2000
  • area E corresponds to the second surface 3001 of the second housing 3000, which can be fixedly connected on the second surface 3001 of the second casing 3000 .
  • the boundaries of areas B, C, and D shown in the figure are only exemplary, and the boundaries of areas B, C, and D can be adjusted according to the specific design of the rotating shaft mechanism 1000 .
  • the electronic device can switch between the flattened state and the closed state through the movement of the hinge mechanism 1000 , and the flexible screen 4000 can be folded or unfolded along with the first casing 2000 and the second casing 3000 .
  • the folding methods of foldable electronic devices are divided into outward folding and inward folding, wherein the outward folding refers to the process of converting the electronic device from the flattened state to the closed state and when the electronic device is in the closed state,
  • the flexible screen 4000 is located outside the electronic device, that is, the flexible screen 4000 is still visible to the user during the folding process and in the closed state, and the user can perform some operations on the flexible screen 4000 in the closed state.
  • FIG. 5a is a schematic structural view of the fold-out electronic device in a flat state
  • FIG. 5b is a schematic structural view of the fold-out electronic device in a closed state.
  • the flexible screen 4000 is located outside the electronic device.
  • the inward-folding type means that the flexible screen 4000 is located inside the electronic device when the electronic device is converted from the flattened state to the closed state and when the electronic device is in the closed state, that is, the flexible screen 4000 is gradually folded during the folding process. Invisible to the user, until the closed state, the flexible screen 4000 will be housed between the two casings and completely hidden. That is, as mentioned above, the first surface 2001 of the first housing 2000 and the second surface 3001 of the second housing 3000 can move toward each other, and when the first housing 2000 and the second housing 3000 are in the closed state , the first surface 2001 of the first case 2000 and the second surface 3001 of the second case 3000 face each other. 6a and 6b may be referred to together. FIG.
  • FIG. 6a is a schematic structural view of the fold-in electronic device in a flattened state
  • FIG. 6b is a schematic structural view of the fold-in electronic device in a closed state.
  • the flexible screen 4000 is located inside the electronic device. It can be understood that during the folding process of the inward-folding electronic device (that is, the process from FIG. 6a to FIG. 6b ), the flexible screen 4000 will be folded in half, and the maximum bending degree that the flexible screen 4000 can withstand is limited. Therefore, there is a corresponding critical radius of curvature R (or range of critical radius of curvature).
  • the flexible screen 4000 will easily break and cannot continue. use.
  • the radius of curvature at the bending position is greater than the critical radius of curvature
  • the radius of curvature of the rotating shaft mechanism 1000 of the electronic device is too small, it will cause problems such as wrinkles, creases, and internal layer misalignment of the flexible screen. Therefore, The design of the rotating shaft mechanism 1000 of the inward-folding electronic device needs to increase the radius of curvature at the bending position of the flexible screen 4000 as much as possible, thereby reducing the extrusion of the flexible screen 4000 .
  • the embodiment of the present application provides a foldable electronic device and a shaft mechanism suitable for the electronic device, aiming at improving the portability of the electronic device , it can also provide a large accommodation space for the flexible screen 4000 during the folding process and in the closed state, so as to increase the curvature radius at the bending position of the flexible screen 4000, thereby reducing the risk of the flexible screen 4000 being crushed and damaged.
  • Fig. 7a and Fig. 7b show simple schematic diagrams of the rotating shaft mechanism 1000 provided in the present application in two different states.
  • Fig. 7a shows the state diagram of the flexible screen 4000 and the shaft mechanism 1000 when the electronic device is in the flat state
  • Fig. 7b shows the state diagram of the flexible screen 4000 and the shaft mechanism 1000 when the electronic device is in the closed state .
  • the rotating shaft mechanism 1000 provided in the present application includes a first door panel 12, a second door panel 13 and a middle door panel 11, and the first door panel 12 and the second door panel 13 are arranged on opposite sides of the middle door panel 11.
  • the side, that is, the middle door panel 11 is sandwiched between the first door panel 12 and the second door panel 13 .
  • the hinge mechanism 1000 also includes a main body 14 , and the first door panel 12 , the middle door panel 11 and the second door panel 13 are on the same side of the main body 14 . It can be understood that, as shown in Fig.
  • the first door panel 12 has opposite surfaces A1 and B1
  • the second door panel 13 has opposite surfaces A2 and B2
  • the middle door panel 11 has opposite surfaces A3 and B3.
  • A1, A2, and A3 are on the same side
  • B1, B2, and B3 are on the same side.
  • the main body 14 is arranged on the side of the B1 surface, the B2 surface and the B3 surface
  • the flexible screen 4000 is arranged on the side of the A1 surface, the A2 surface and the A3 surface.
  • the first door panel 12 can rotate relative to the main body 14
  • the second door panel 13 can also rotate relative to the main body 14
  • the rotation direction of the first door panel 12 is opposite to that of the second door panel 13
  • the first door panel 12 and the second door panel 13 that rotate oppositely can include two states, the first one is that when the electronic device is folded, the first door panel 12 and the second door panel 13 rotate toward each other (or be called relative); When the electronic device is unfolded, the first door panel 12 and the second door panel 13 rotate away from each other.
  • the middle door panel 11 can move toward the direction close to the main body 14 or move away from the main body 14 .
  • the first door panel 12 , the middle door panel 11 and the second door panel 13 are in the same plane and are used to support the flattened flexible screen 4000 .
  • the electronic device changes from the flattened state to the closed state, as shown in FIGS. 7a to 7b, the first door panel 12 rotates in the direction of rotation P1 relative to the main body 14, and the second door panel 13 rotates in the direction P2 opposite to the direction of P1 relative to the main body 14. direction to turn.
  • the ends of the first door panel 12 and the second door panel 13 away from the main body are close to each other, and the ends of the first door panel 12 and the second door panel 13 close to the main body are far away from each other, so that the flexible screen 4000 is positioned between the first door panel 12 and the second door panel. 13 bends between.
  • the middle door panel 11 moves close to the main body 14 along the P3 direction shown in FIG. From D1 in Fig. 7a to D2 in Fig. 7b.
  • the first door panel 12 , the middle door panel 11 and the second door panel 13 form a nearly triangular accommodating cavity, and the flexible screen 4000 is accommodated in the triangular accommodating cavity and may be in a drop-like shape. It can be understood that through the movement of the middle door panel 11 towards the main body 14, a large enough accommodation space can be avoided for the flexible screen 4000, so as to increase the radius of curvature at the bending position of the flexible screen 4000 and reduce the damage of the flexible screen 4000 by extrusion. risks of.
  • FIGS. Turn in the opposite direction to the P2 direction. That is, the first door panel 12 and the second door panel 13 face away from each other, so that the flexible screen 4000 is unfolded.
  • the middle door panel 11 moves away from the main body 14 in the direction opposite to the P3 direction shown in FIG. 7b until the first door panel 12, The middle door panel 11 and the second door panel 13 move to be located in the same plane to support the flattened flexible screen 4000 .
  • the rotating shaft mechanism 1000 provided in the present application, not only the first door panel 12 and the second door panel 12
  • the two door panels 13 can rotate relative to the main body 14, and the middle door panel 11 can also be raised and lowered relative to the main body 14, so that the length of the rotating shaft mechanism 1000 can be changed. That is, when the flexible screen 4000 is folded, the length of the rotating shaft mechanism 1000 can be elongated to provide more accommodation space for the flexible screen 4000, increase the radius of curvature at the bending position of the flexible screen 4000, and avoid damage to the rotating shaft mechanism.
  • the 1000 part of the flexible screen 4000 is squeezed.
  • the length of the hinge mechanism 1000 can be shortened. That is to say, the hinge mechanism 1000 can make the length of the flexible screen 4000 basically unchanged when the flexible screen 4000 is at any angle during the folding process, that is, it will not be squeezed or stretched.
  • FIG. 8 shows a simplified schematic diagram of an existing electronic device.
  • the flexible screen 4000 is slidably arranged on the first casing 2000 and the second casing 3000. If the electronic device is folded multiple times, the flexible screen 4000 may be worn or even damaged due to repeated sliding. .
  • part of the flexible screen 4000 is fixedly connected to the first housing 2000, and the other part of the flexible screen 4000 is fixedly connected to the second housing 3000.
  • this application will significantly reduce the degree of wear of the flexible screen 4000, so as to increase the folding times of the flexible screen, increase the service life of the flexible screen 4000, and improve the performance of the electronic device.
  • the edges of the first housing 2000 and the second housing 3000 have space for accommodating the sliding of the flexible screen 4000 In this way, the screen ratio of the flexible screen 4000 on the first casing 2000 and the second casing 3000 will be reduced.
  • the first housing 2000 and the second housing 3000 provided by the present application do not need to set the Q area. Larger flexible screen 4000 to provide a larger display area.
  • FIG. 9 shows a possible structure of a rotating shaft mechanism 1000
  • FIG. 9 is an exploded view of the rotating shaft mechanism 1000
  • the rotating shaft mechanism 1000 also includes a first swing arm 151 and a second swing arm 152, and the first swing arm 151 and the second swing arm 152 are opposite to each other. It is arranged on both sides of the door panel main body 14 .
  • one end of the first swing arm 151 is rotatably connected to the main body 14, and the other end is relatively fixed to the first housing 2000
  • one end of the first door panel 12 is rotatably connected to the first swing arm 151
  • the other end of the first door panel 12 is rotatably connected to the main body.
  • 14 Swipe to connect One end of the second swing arm 152 is rotatably connected to the main body 14, and the other end is relatively fixed to the second housing 3000.
  • One end of the second door panel 13 is rotatably connected to the second swing arm 152, and the other end of the second door panel 13 slides with the main body 14. connect.
  • the main body 14 , the first swing arm 151 and the first door panel 12 constitute a crank sliding mechanism.
  • an external force acts on the first swing arm 151 to make it rotate relative to the main body 14, due to the rotation cooperation between the first door panel 12 and the first swing arm 151, and the sliding cooperation between the first door panel 12 and the main body 14, when the first swing arm 151
  • the arm 151 rotates clockwise from the solid line position A1 to the dotted line position A2 in the clockwise direction as shown in FIG. 11
  • the first door panel 12 also moves from the solid line position B1 to the dotted line position B2 .
  • the first swing arm 151 when the first swing arm 151 rotates relative to the main body 14 , it will drive the first door panel 12 to rotate relative to the main body 14 . That is to say, in addition, the first swing arm 151 drives the first door panel 12 to rotate, so that the first door panel 12 slides relative to the main body 14 along the direction perpendicular to the rotation axis of the first swing arm 151, thereby driving the first door panel 12 to approach One end of the main body 14 moves in a direction away from the main body 14 .
  • the main body 14, the second swing arm 152 and the second door panel 13, like the above-mentioned Figs. 10 and 11, also constitute a crank sliding mechanism. That is, when the external force acts on the second swing arm 152 to make it rotate relative to the main body 14, due to the rotation cooperation between the second door panel 13 and the second swing arm 152, and the sliding cooperation between the second door panel 13 and the main body 14, when the second When the swing arm 152 rotates, it also drives the second door panel 12 to rotate.
  • the first swing arm 151 may include one or more, and the second swing arm 152 may also include one or more.
  • a rotating shaft mechanism 1000 including two first swing arms 151 and two second swing arms 152 is shown. When there are multiple first swing arms 151 and multiple second swing arms 152 , the first swing arms 151 and the second swing arms 152 may be arranged at intervals.
  • connection structures among the first door panel 12 , the first swing arm 151 , and the main body 14 will be specifically described below.
  • connection structure between the second door panel 13 , the second swing arm 152 and the main body 14 refer to the description of the connection structure between the first door panel 12 , the first swing arm 151 , and the main body 14 .
  • the rotational connection between the first swing arm 151 and the main body 14 has many possible structures, and three different rotational connection structures are given below. Of course, in addition to this, other rotational connection structures can also be used.
  • Example 1 shows a rotating connection structure.
  • the main body 14 is provided with an arc-shaped first arc-shaped protrusion 14a
  • the end of the first swing arm 151 close to the main body 14 is provided with a first arc-shaped locking groove 151a
  • the first arc-shaped protrusion 14a 14a is fitted in the first arc-shaped slot 151a, and the relative rotation between the first arc-shaped protrusion 14a and the first arc-shaped slot 151a can realize the rotation between the first swing arm 151 and the main body 14 .
  • FIG. 12 shows the positional relationship between the first swing arm 151 and the second swing arm 152 and the main body 14 when the electronic device is in a flat state.
  • FIG. 13 shows the positional relationship between the first swing arm 151 and the second swing arm 152 and the main body 14 when the electronic device is in an intermediate state.
  • the end of the first swing arm 151 away from the main body 14 and the end of the second swing arm 152 away from the main body 14 gradually move away from the main body 14 .
  • FIG. 14 shows the positional relationship between the first swing arm 151 and the second swing arm 152 and the main body 14 when the electronic device is in a closed state.
  • Figure 15 shows a partial structural view of the first swing arm 151, the first swing arm 151 is provided with two second swing arms symmetrically arranged on both sides. An arc-shaped slot 151a.
  • Figure 16 shows a partial structural view of the main body 14, the main body 14 is provided with two first arc-shaped projections 14a, two first arc-shaped locking grooves 151a and two first arc-shaped The bumps 14a are connected in one-to-one correspondence.
  • the two first arc-shaped protrusions 14 a clamp the end of the first swing arm 151 between them.
  • the two first arc-shaped protrusions 14a also play a role of limiting. Specifically, when the first swing arm 151 and the main body 14 rotate relatively, the first swing arm 151 can be prevented from moving in the direction of the rotation axis (such as the L1 direction in FIG. Smooth rotation. Furthermore, it can ensure that the flexible screen 4000 will not deviate along the rotation axis when it is folded or unfolded, so as to improve the user experience of the electronic device.
  • the first arc-shaped locking groove 151a can be a quarter-arc groove, a third-arc groove, or the like.
  • the first arc-shaped protrusion 14a may be a quarter-arc protrusion, a third-arc protrusion, or the like.
  • Those skilled in the art can adapt and adjust the specific parameters of the first arc-shaped locking groove 151a and the first arc-shaped protrusion 14a according to actual needs, which is not specifically limited in the present application.
  • Example 2 a first arc-shaped protrusion may be provided on the first swing arm 151 , and a first arc-shaped locking groove may be provided on the main body 14 .
  • the first arc-shaped protrusion on the first swing arm 151 and the first arc-shaped protrusion on the main body 14 An arc-shaped slot cooperates to realize relative rotation between the first swing arm 151 and the main body 14 . That is to say, in Example 2, compared with Example 1, the setting positions of the first arc-shaped protrusion and the first arc-shaped slot can be exchanged to achieve the same rotational connection effect, so you can refer to Example 1 to set the first arc-shaped protrusion The structure of the block and the first arc-shaped slot will not be repeated here.
  • Example 3 the first swing arm 151 and the main body 14 may be rotationally connected by using a rotating shaft.
  • shaft holes are provided on both the main body 14 and the first swing arm 151 , and the two are rotationally connected by a rotating shaft inserted into the shaft holes.
  • the rotation structure of the second swing arm 152 and the main body 14 can refer to the above rotation structure of the first swing arm 151 and the main body 14 , of course, other structures can also be selected to realize the rotation.
  • FIG. 16 shows that the main body 14 is provided with an arc-shaped second arc-shaped protrusion 14b.
  • the second swing arm 152 is provided with a second arc-shaped card for assembling the second arc-shaped protrusion 14b. groove.
  • the rotation axis of the second swing arm 152 on the main body 14 and the rotation axis of the first swing arm 151 on the main body 14 may be arranged in parallel.
  • the rotation axis L1 of the first arc-shaped locking groove 151a and the first arc-shaped projection 14a are rotatably matched
  • the rotation axis L2 of the second arc-shaped projection 14b and the second arc-shaped locking groove is rotatably matched. In parallel.
  • FIG. 17 shows a possible structure of the first swing arm 151 , wherein the first swing arm 151 includes a bracket 1511 and an arc arm 1512 in an arc shape.
  • the bracket 1511 and the arc arm 1512 may be two independent parts, which are relatively fixed by connecting pieces such as bolts.
  • the bracket 1511 and the arc arm 1512 may also be integrally formed.
  • the above-mentioned first arc-shaped slot 151 a can be opened on the arc arm 1512 , and the bracket 1511 can be fixedly connected with the first housing 2000 .
  • a mounting hole 151b may be opened on the bracket 1511 , and the first housing 101 is fixedly connected to the bracket 1511 of the first swing arm 151 through a connector such as a rivet installed in the mounting hole 151b.
  • the second swing arm 152 may have the same structure as the first swing arm 151 .
  • the first swing arm 151 and the second swing arm 152 may also adopt other types of structures.
  • FIG. 18 shows a partial structural diagram of the first swing arm 151 , and the first swing arm 151 is provided with a third arc-shaped locking slot 151c.
  • Fig. 19 shows a schematic structural view of the first door panel 12, the first door body 12 is a panel structure, and the first door panel 12 has an opposite first surface (A1 surface) and a second surface (B1 surface) .
  • a side of the first door panel 12 opposite to the main body 14 is provided with a first door panel arc-shaped protrusion 12a.
  • the first door panel arc-shaped protrusion 12 a can be provided on the B1 surface of the first door panel 12 .
  • the first door panel arc-shaped protrusion 12 a is fitted in the third arc-shaped locking groove 151 c, so that the first swing arm 151 and the first door panel 12 can be rotatably connected.
  • FIG. 12a In order to promote the relative rotation stability of the first door panel 12 and the first swing arm 151, as shown in FIG. 12a is in one-to-one rotational connection with a plurality of first swing arms 151 .
  • a rotary shaft connection may also be used.
  • the first swing arm 151 includes a bracket 1511 and an arc arm 1512 in an arc shape
  • the arc arm 1512 is close to the main body 14 and is rotatably connected with the main body 14 .
  • the third arc-shaped slot 151c can be opened on the bracket 1511 away from the main body 14 .
  • the rotation direction of the first door panel 12 around the bracket 1511 and the rotation direction of the bracket 1511 itself can be in the same direction. For example, when the bracket 1511 itself rotates clockwise, the first door panel 12 rotates clockwise around the bracket 1511; , the first door panel 12 rotates counterclockwise around the bracket 1511 .
  • the rotational connection structure of the second door panel 13 and the second swing arm 152 may refer to the rotational connection structure of the first door panel 12 and the first swing arm 151 , and will not be repeated here.
  • the electronic device when the electronic device is in a flattened state, it is used to reflect the relationship between the first door panel 12 and the first swing arm 151, and the first door panel 12 and the main body 14, and also reflects the connection relationship between the second door panel 13 and the second swing arm 152, and between the second door panel 13 and the main body 14.
  • the side of the first door panel 12 opposite to the main body 14 is provided with an extension 121, and the extension 121 extends toward the side of the middle door panel 11 close to the main body 14, and the extension 121 is provided with The first door panel slide groove 12b.
  • an extension portion 121 may be provided on the B2 surface of the first door panel 12 , and the extension portion 121 extends toward the side of the middle door panel 11 close to the main body 14 , and the first door panel slide groove 12b is defined on the extension portion 121 .
  • the first door panel chute 12b is equipped with a sliding shaft 16, and the sliding shaft 16 is relatively fixed to the main body 14. Through the sliding cooperation between the sliding shaft 16 and the first door panel chute 12b, the sliding between the first door panel 12 and the main body 14 is realized. connect.
  • the sliding connection between the sliding shaft 16 and the first door panel sliding groove 12b is adopted to realize the sliding connection between the two.
  • a slider that can slide along the first door panel sliding groove 12b of the first door panel 12 can also be provided on the main body 14, and the slider and the main body 14 can be designed as an integral structure.
  • the sliding connection structure between the second door panel 13 and the main body 14 can refer to the sliding connection structure between the first door panel 12 and the main body 14 , which will not be repeated here.
  • the sliding fit structure of the sliding shaft and the chute in Fig. 19 and Fig. 20 can also be adopted.
  • FIG. 20 also shows the positions of the first swing arm 151 , the second swing arm 152 , the first door panel 12 and the second door panel 13 when the electronic device is in a flattened state.
  • Figure 21 shows the positions of the first swing arm 151, the second swing arm 152, the first door panel 12 and the second door panel 13 when the electronic device is folded to the middle state. It can be seen from the comparison between Figure 20 and Figure 21 that the first The swing arm 151 and the second swing arm 152 rotate in opposite directions, and the sliding shaft 16 moves along the sliding groove 12 b of the first door panel, so that the first door panel 12 and the second door panel 13 also rotate in opposite directions.
  • Figure 22 shows the positions of the first swing arm 151, the second swing arm 152, the first door panel 12 and the second door panel 13 when the electronic device is in the closed state.
  • the sliding shaft 16 slides to the first door panel chute 12b and abuts against the corresponding door panel. It can be seen that during the transition of the electronic device from the flattened state to the closed state, the sliding shaft 16 slides from the end of the first door chute 12b away from the main body 14 to the end of the first door chute 12b close to the main body 14 .
  • the above-mentioned first door panel sliding groove 12b can be provided in various structures.
  • Fig. 23a, Fig. 23b and Fig. 23c show three different arc structures of the first door panel runner 12b. From Fig. 23a to Fig. 23c, the bending radius of the first door panel runner 12b gradually decreases. When the bending radius of the first door panel chute 12b is smaller, the rotational speed of the door panel (the first door panel 12 or the second door panel 13 ) is greater when the electronic device is folded and unfolded. Therefore, when designing the rotating shaft mechanism, the bending radius of the first door panel chute 12b can be selected according to the speed requirement of the door panel.
  • the first door panel sliding groove 12b may also be in other forms of structures, such as a linear shape, a bent shape, and the like.
  • the rotating shaft mechanism 1000 may also include a driving structure for driving the middle door panel 11 to move.
  • the driving structure drives the middle door panel 11 to move towards the direction close to the main body 14;
  • the driving structure drives the middle door panel 11 to move away from the main body 14 .
  • the driving structure will drive the middle door panel 11 to move to the first position close to the main body 14, which will increase the entire rotation axis.
  • the 4000 avoids the accommodation space to ensure that the flexible screen 4000 always maintains the same length during the folding process.
  • the driving structure will drive the middle door panel 11 to move to a second position away from the main body 14 to shorten the length of the entire shaft mechanism 1000 Dimensions, when in the second position, the first door panel 12, the middle door panel 11 and the second door panel 13 are in the same plane, so that the flexible screen 4000 is flatly located on them.
  • FIG. 24 is a cross-sectional view of the hinge mechanism 1000 , showing the connection relationship between the main body 14 , the middle door panel 11 and the retractable puller 23 .
  • one end of the pulling member 23 is fixed to the middle door panel 11 , and the other end is fixedly connected to the main body 14 .
  • the retractable pulling member 23 can exert a force on the middle door panel 11 toward the main body 14, so as to drive the middle door panel 11 to move toward the main body 14.
  • the retractable pulling member 23 has various optional structures.
  • the pulling member 23 is a spring.
  • other telescopic parts can also be selected.
  • the driving structure may be an electric driving structure (for example, a linear motor), or a hydraulic driving structure (for example, a hydraulic cylinder), or a pneumatic driving structure (for example, an air cylinder).
  • a linear motor for example, a linear motor
  • a hydraulic driving structure for example, a hydraulic cylinder
  • a pneumatic driving structure for example, an air cylinder
  • first door panel 12 and the second door panel 13 since the first door panel 12 and the second door panel 13, as well as the first swing arm 151 and the second swing arm 152 will move relative to the middle door panel 11 during the folding and unfolding process of the electronic device, in a possible embodiment of the present application, one or more of the moving first door panel 12 , second door panel 13 , first swing arm 151 and second swing arm 152 can be used to exert force on the middle door panel 11 , so that the middle door panel 11 moves away from the main body 14 . In this way, the structure of the entire rotating shaft mechanism 1000 can be simplified, and the implementation is also convenient. How the first door panel 12 and the second door panel 13 , and at least one of the first swing arm 151 and the second swing arm 152 as a driving structure to drive the middle door panel 11 to move relative to the main body 14 will be specifically described below.
  • any one of the first door panel 12, the second door panel 13, the first swing arm 151 and the second swing arm 152 performs a rotational movement relative to the main body 14, then, these rotations can be used to At least one of the structures exerts a force on the middle door panel 11, causing the middle door panel 11 to move.
  • FIG. 25 shows a schematic structural diagram of the first swing arm 151 driving the middle door panel 11 to move away from the main body 14 .
  • the end of the first swing arm 151 close to the main body 14 will form a support portion 151e, and the support portion 151e will abut against the side of the middle door panel 11 close to the main body 14 , as the first swing arm 151 rotates, the middle door panel 11 is pushed to move away from the main body 14 through the support portion 151e.
  • FIG. 26 which is a partial structural view of the first swing arm 151
  • the arc arm 1512 of the first swing arm 151 can be used as the supporting part 151e.
  • a boss 151f may be provided at the end of the arc arm 1512 . That is, the boss 151f that rotates synchronously with the first swing arm 151 abuts against the middle door panel 11 to drive the middle door panel 11 to move away from the main body 14 .
  • one of the first swing arm 151 and the second swing arm 152 can be used as the driving structure.
  • the first swing arm 151 and the second swing arm 152 may be used to jointly drive the middle door panel 11 to move.
  • the process and structural design of the second swing arm 152 driving the middle door panel 11 to move are similar to the above-mentioned first swing arm 151 , so details will not be repeated here.
  • the electronic device moves from the closed state to the rear stage of the unfolded state, and the first swing arm 151 and the second swing arm 152 abut against the middle door panel 11 , so as to push the middle door panel 11 to move away from the main body 14; on the contrary, when the electronic device switches from the flattened state to the closed state, the first swing arm 151 and the second swing arm 152 abut against the middle door panel 11, with the first swing The arm 151 and the second swing arm 152 continue to rotate without abutting against the middle door panel 11, and the thrust to the middle door panel 11 is canceled, and the middle door panel 11 will move towards the main body 14 under the action of the retractable pulling member 23.
  • a support portion is formed on the side of the first door panel 12 facing the main body 14 . It can also be said that the side B2 of the first door panel 12 facing the main body 14 is formed with a support portion.
  • FIG. 27 shows a schematic structural diagram of the first door panel 12 driving the middle door panel 11 to move away from the main body 14 .
  • a boss 12c protruding toward the middle door panel 11 may be formed at the end of the extension portion 121 of the first door panel 12 provided with the first door panel slide groove 12b. That is, the boss 12 c that rotates synchronously with the first door panel 12 abuts against the middle door panel 11 to drive the middle door panel 11 to move away from the main body 14 .
  • a support portion may be separately provided on a side of the first door panel 12 close to the main body 14 , and the support portion and the extension portion having the sliding groove of the first door panel are two independent structures.
  • first door panel 12 and the second door panel 13 can be used as the driving structure.
  • first door panel 12 and the second door panel 13 may be used to jointly drive the middle door panel 11 to move.
  • the process and structural design of the second door panel 13 driving the middle door panel 11 to move are similar to the above-mentioned first door panel 12 , and will not be repeated here.
  • the electronic device When using the rotating first door panel 12 and the second door panel 13 as the driving structure, the electronic device is from the closed state to the rear section of the flattened state, and the first door panel 12 and the second door panel 13 abut against the middle door panel 11 to push the middle door panel 11.
  • the door panel 11 moves away from the main body 14; on the contrary, when the electronic device switches from the flattened state to the closed state, the first door panel 12 and the second door panel 13 abut against the middle door panel 11, and as the first door panel 12 and the second door panel 13
  • the first door panel 12 and the second door panel 13 Continue to rotate, do not abut against the middle door panel 11, cancel the thrust to the middle door panel 11, and the middle door panel 11 will move towards the main body 14 under the effect of the retractable pulling member.
  • first rocker arm 151 and the second rocker arm 152 are used to push the middle door panel 11 to move away from the main body 14, when the electronic device switches from the flattened state to the closed state at the initial stage, due to the first rocker arm 151 Since the rotation speed of the second rocker arm 152 is relatively slow, the middle door panel 11 cannot move toward the main body 14 quickly, so that the flexible screen 4000 will arch away from the middle door panel 11 .
  • the middle door panel 11 will quickly move towards the main body 14 under the pull of the pulling member, thus causing the flexible screen 4000 to approach
  • the part of the middle door panel 11 lacks support and has a large stress, which may cause damage to the flexible screen 4000 .
  • the embodiment of the present application can use the first swing arm 151 and the second swing arm 152 as the middle door panel 11 is a driving structure for moving away from the main body 14, and the first door panel 12 and the second door panel 13 are also used as a driving structure for urging the middle door panel 11 to move away from the main body 14.
  • the push of the first door panel 12 and the second door panel 13 to the middle door panel 11 lags behind that of the first swing arm 151 and the second swing arm 152 to the middle door panel 11. promotion.
  • the first door panel 12 and the second door panel 13 support the middle door panel 11 in the first stage when the electronic device moves from the flattened state to the closed state. Because the rotation speed of the first door panel 12 and the second door panel 13 relative to the main body 14 is relatively fast, in this case, along with the fast rotation of the first door panel 12 and the second door panel 13, the middle door panel 11 is also rapidly moved towards the main body 14 , to avoid space for the flexible screen 4000 and to avoid the phenomenon of arching at the part close to the middle door panel 11 .
  • the first swing arm 151 and the second swing arm 152 rotate to support the middle door panel 11 again. 11 for support.
  • the reason is that the rotation speeds of the first swing arm 151 and the second swing arm 152 are both lower than the rotation speeds of the first door panel 12 and the second door panel 13 .
  • the middle door panel 11 is supported by the first swing arm 151 and the second swing arm 152 with a slower rotation speed, so that the movement of the middle door panel 11 can be reduced. speed to avoid stress concentration on the flexible screen 4000 caused by excessive force withdrawal.
  • the middle door panel 11 has three movement stages.
  • the first stage the first door panel 12 and the second door panel 13 rotate in opposite directions.
  • the first swing arm 151 and the second swing arm 152 rotate in opposite directions, and the supporting parts of the first door panel 12 and the second door panel 13 that are in contact with the middle door panel 11 are gradually separated from the middle door panel 11, so that the middle door panel 11 moves close to the main body 14 at V1 speed ;
  • the second stage along with the first door panel 12 and the second door panel 13, and the first swing arm 151 and the second swing arm 152 continue to rotate, the support portion of the first door panel 12 and the second door panel 13 is in contact with the middle door panel 11 separate, the supporting parts of the first swing arm 151 and the second swing arm 152 abut against the middle door panel 11, and control the middle door panel 11 to continue to approach the main body 14 at a speed of V2 less than V1; in the third stage
  • the middle door panel 11 also has three movement stages. In the first stage, the first door panel 12 and the second door panel 13 rotate away from each other.
  • the first swing arm 151 and the second swing arm 152 rotate away from each other, and the middle door panel 11 remains stationary under the pull of the pulling member; in the second stage, with the first door panel 12 and the second door panel 13, and As the first swing arm 151 and the second swing arm 152 continue to rotate, the supporting parts of the first swing arm 151 and the second swing arm 152 abut against the middle door panel 11, destroying the pulling force of the pulling member on the middle door panel 11, and pushing the middle door panel 11 Move away from the main body 14 at the speed of V3; in the third stage, the first swing arm 151 and the second swing arm 152 are separated from the middle door panel 11, and the supporting parts of the first door panel 12 and the second door panel 13 are against the middle door panel 11 Next, push the middle door panel 11 to continue to move away from the main body 14 at a speed of V4 greater than V3, until the first door panel 12, the middle door panel 11 and the second door panel 13 are coplanar.
  • the above mentioned uses the first swing arm 151 and the second swing arm 152 , as well as the first door panel 12 and the second door panel 13 as the driving structure for pushing the middle door panel 11 to move.
  • one of the first swing arm 151 and the second swing arm 152 and one of the first door panel 12 and the second door panel 13 can be used as the driving structure for pushing the middle door panel 11 to move.
  • the first swing arm 151 and the second swing arm 152 , as well as the first door panel 12 and the second door panel 13 can be used together as the driving structure to push the middle door panel 11 to move.
  • both the first swing arm 151 and the second swing arm 152 abut against the middle door panel 11
  • the pulling force of the pulling member on the middle door panel 11 must be destroyed firstly, so as to drive the middle door panel 11 to move away from the main body 14 .
  • the elastic force of the telescopic puller to the middle door panel 11 should not be too large.
  • the thrust force of the first swing arm 151 and the second swing arm 152 to drive the middle door panel 11 to move is f
  • the stretchable puller will not be too strong on the middle door panel 11.
  • the elastic force of the middle door panel 11 needs to be smaller than f. In this way, the middle door panel 11 will move away from the main body 14 under the push of the first swing arm 151 and the second swing arm 152 .
  • FIG. 28 simply shows a schematic diagram of the positional relationship when the first swing arm 151 rotates to abut against the middle door panel 11 and is in a certain position. At this position, the rotating first swing arm 151 is The active force of the middle door panel 11 may be F, which can be decomposed into vertical F1 and horizontal F2. Then, when the rotating first swing arm 151 drives the middle door panel 11 to move, it may be difficult to ensure that the middle door panel 11 Move linearly along the P4 direction perpendicular to the middle door panel 11.
  • the rotating shaft mechanism 1000 also includes a guiding structure for guiding the middle door panel 11 to move in a direction perpendicular to the length direction of the middle door panel 11 .
  • the length direction of the middle door panel 11 is parallel to the axis direction of the rotational connection between the first swing arm 151 and the main body 14 .
  • the middle door panel 11 moves along a direction perpendicular to the length direction of the middle door panel 11, that is, the middle door panel 11 moves up and down along a straight line during the process of lifting and sinking, so as to ensure the stability of the movement.
  • the guiding structure has various realizable structures.
  • FIG. 29 is used to illustrate the connection relationship between the middle door panel 11 , the main body 14 and the guide structure
  • FIG. 29 is an exploded view.
  • the guide structure includes a guide block 22 arranged on the middle door panel 11, the guide block 22 and the middle door panel 11 can be two mutually independent structures, for example, as shown in Figure 29, the guide block 22 and the middle door panel 11 can be connected by Part 25 is fixedly connected. Or, in another possible design, the guide block 22 and the middle door panel 11 form an integral structure.
  • the guide structure also includes a guide hole 24 provided in the main body 14. The extension direction of the guide hole 24 is perpendicular to the middle door panel 11, so that the guide block 22 sliding in the guide hole 24 will drive the middle door panel 11 along the direction perpendicular to it. away from the main body 14, or close to the main body 14.
  • FIG. 30 is a cross-sectional view of the rotating shaft mechanism, which is used to illustrate the connection relationship between the middle door panel 11 , the main body 14 and the pulling member 23 .
  • the rotating shaft mechanism includes the retractable puller 23 , the guide block 22 and the guide hole 24
  • the opening of the guide hole 24 close to the middle door panel 11 can have a blocking portion 141 .
  • the radial dimension at the opening of the guide hole 24 is smaller than the radial dimension inside the guide hole 24 , and the pulling member 23 is hidden in the guide hole 24 .
  • a blind hole 26 that does not penetrate to the bottom of the guide block 24 can be opened in the guide block 24, one end of the pulling member 23 is fixedly connected with the shielding part 141, and the other end abuts against the blind hole 26. Bottom of hole 26.
  • the rotating shaft mechanism 1000 may also include a synchronous structure, In order to realize synchronous rotation in opposite directions and synchronous rotation in opposite directions between the first casing 2000 and the second casing 3000 .
  • FIG. 31 shows a synchronization structure that can be realized.
  • the synchronization structure may include a gear transmission structure, and the first swing arm 151 is connected to the second swing arm 152 through the gear transmission structure. That is, when the first swing arm 151 rotates relative to the main body 14, the gear transmission structure drives the second swing arm 152 to rotate synchronously and reversely, and then, the first housing 2000 fixedly connected to the first swing arm 151, and the first housing 2000 connected with the second swing arm 151
  • the second casing 3000 to which the two swing arms 152 are fixedly connected can rotate synchronously and in opposite directions.
  • the gear transmission structure may include a first gear connecting rod 171 and a second gear connecting rod 172, one end of the first gear connecting rod 171 is slidably connected with the first swing arm 151, and the other end of the first gear connecting rod 171 has The first meshing teeth 1711 , one end of the second gear connecting rod 172 is slidingly connected with the second swing arm 152 , and the other end of the second gear connecting rod 172 has the second meshing teeth 1721 .
  • the gear transmission structure also includes an even number of driven gears, for example, it may include two, four or six driven gears. In FIG.
  • these two driven gears are respectively the first driven gear 173 and the second driven gear 174, wherein, the first driven gear 173 and the second driven gear 174 are externally meshed, and the first driven gear 173 It is also externally meshed with the first meshing teeth 1711 on the first gear connecting rod 171 , and the second driven gear 174 is externally meshing with the second meshing teeth 1721 on the second gear connecting rod 172 .
  • the first meshing teeth 1711 are directly meshed with the second meshing teeth 1721, that is, when the first gear connecting rod 171 rotates, it will directly drive the second gear connecting rod 172 to move backward. , so that the first swing arm 151 and the second swing arm 152 move in opposite directions, so that the first shell and the second shell are brought together or separated from each other.
  • the rotation axes of the first gear connecting rod 171 , the first driven gear 173 , the second driven gear 174 and the second gear connecting rod 172 need to be aligned with the first swing arm 151 in the main body.
  • the rotation axis on the body 14 is parallel to the rotation axis of the rotation axis of the second swing arm 152 on the main body 14 .
  • Figure 32 is used to reflect the sliding connection relationship between the first gear connecting rod 171 and the first swing arm 151, and to reflect the The sliding connection relationship between the gear connecting rod 172 and the second swing arm 152 .
  • the first gear connecting rod 171 is connected to the first swing arm 151 through a pin shaft 19 , and the pin shaft 19 is fixed to the first gear connecting rod 171 .
  • the first swing arm 151 is provided with a first track groove 151d for the pin shaft 19 to slide, and through the sliding fit between the pin shaft 19 and the first track groove 151d, the first gear connecting rod 171 and the first swing arm 151 are connected to each other. sliding link.
  • the gear link 172 is fixed.
  • the second swing arm 152 is provided with a second track groove 152d for the pin shaft 19 to slide, so as to realize the sliding connection between the second gear connecting rod 172 and the second swing arm 152 .
  • the working process of the synchronous structure will be introduced below in conjunction with FIG. 31. If the first swing arm 151 rotates clockwise as shown in FIG.
  • the gear connecting rod 171 rotates clockwise, and the rotating first gear connecting rod 171 drives the first driven gear 173 to rotate counterclockwise, and the first driven gear 173 drives the second driven gear 174 meshing with the outside to rotate clockwise.
  • the second driven gear 174 then drives the second gear connecting rod 172 to rotate counterclockwise, driving the second swing arm 152 to rotate counterclockwise, and finally realizes the synchronous rotation of the first swing arm 151 and the second swing arm 152 in opposite directions, and realizes the folding of the flexible screen. .
  • first swing arm 151 rotates counterclockwise as shown in FIG. 31 , it drives the first gear connecting rod 171 to rotate counterclockwise, and the rotating first gear connecting rod 171 drives the first driven gear 173 to rotate clockwise.
  • first driven gear 173 drives the second driven gear 174 meshing with the outside to rotate counterclockwise
  • the second driven gear 174 drives the second gear connecting rod 172 to rotate clockwise
  • drives the second swing arm 152 to rotate clockwise finally realize the synchronous back rotation of the first swing arm 151 and the second swing arm 152, and realize the flattening of the flexible screen.
  • first swing arms 151 when there are at least two first swing arms 151 , correspondingly, at least two sets of synchronization structures are required, and multiple sets of synchronization structures are connected one-to-one to multiple first swing arms 151 .
  • first synchronous structure 201 is connected to one of the two first swing arms
  • second synchronous structure Structure 202 is connected to the other of the two first swing arms.
  • the synchronous structure has multiple groups, as shown in Figure 33, when each synchronous structure includes a gear transmission structure, the first gear connecting rod 171 in the first synchronous structure and the first gear connecting rod 171 in the second synchronous structure pass through the first gear connecting rod 171 in the second synchronous structure.
  • a connecting shaft 175 is arranged coaxially.
  • the second gear connecting rod 172 in the first synchronous structure and the second gear connecting rod 172 in the second synchronous structure are coaxially arranged through the second connecting shaft 176, and the first driven gear 173 in the first synchronous structure
  • the first driven gear 173 in the second synchronous structure is coaxially arranged through the third connecting shaft 177, the second driven gear 174 in the first synchronous structure and the second driven gear 174 in the second synchronous structure are passed through the first
  • the four connecting shafts 178 are arranged coaxially. In this way, when the two first swing arms 151 rotate synchronously, it will drive the two second swing arms 152 to rotate synchronously and reversely.
  • the flexible screen 4000 continuously covers the first housing 2000 of the foldable electronic device, the hinge mechanism 1000 and the second surface 3001 of the second housing 3000 .
  • area A corresponds to the first surface 2001 of the first housing 2000, which can be fixedly connected to the first surface 2001 of the first housing 2000
  • area E corresponds to the second surface 3001 of the second housing 3000, which can be It is fixedly connected to the second surface 3001 of the second casing 3000 .
  • Area B is fixedly connected to the first door panel 12 of the rotating shaft mechanism
  • area D is fixedly connected to the second door panel 13 of the rotating shaft mechanism
  • area C is opposite to the middle door panel 11, and area C can move relative to the middle door panel 11.
  • the rotating shaft mechanism 1000 given in this application also includes an end cover 21 on which the above-mentioned main body 14 is fixed. As shown in FIG. 2 , when the first shell 2000 and the second shell 3000 are unfolded, the first shell The end surface of the body 2000 is close to the end surface of the second housing 3000, and the rotating shaft mechanism 1000 including the end cover 21 is hidden in the first housing 2000 and the second housing 3000, that is, it cannot be seen from the appearance of the electronic device. To the hinge mechanism 1000, this will improve the appearance of the mobile terminal. As shown in Fig.

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Abstract

一种转轴机构,涉及可折叠屏的电子设备技术领域,包括主体(14)、第一门板(12)、第二门板(13)和中间门板(11),以及第一摆臂(151)和第二摆臂(152);其中,第一摆臂(151)、主体(14)和第一门板(12)可以构成一种曲柄滑块机构,第二摆臂(152)、主体(14)和第二门板(13)也构成一种曲柄滑块机构,另外,中间门板(11)在第一门板(12)、第二门板(13)、第一摆臂(151)和第二摆臂(152)中至少一个结构的带动下可以相对主体移动,由此随着柔性屏的折叠,转轴机构的长度能够发生变化,从而提高了柔性屏的可靠性。

Description

转轴机构和电子设备
本申请要求于2021年06月30日提交国家知识产权局、申请号为202110739235.2、发明名称为“转轴机构和电子设备”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
本申请涉及电子设备技术领域,尤其涉及一种转轴机构以及具有该转轴机构的电子设备。
背景技术
目前,可折叠屏被广泛的应用在移动终端中,比如折叠手机、折叠平板等,在诸如这些移动终端中,可折叠屏主要是通过柔性屏和转轴机构相结合来实现。在移动终端的使用过程中,由于柔性屏的反复折叠,有可能会导致柔性屏损坏。
为了延长柔性屏的寿命,提高可折叠的电子设备的可靠性,柔性屏的折叠部分需要具有一定的曲率变形。另外,柔性屏的折叠部分的各处曲率的均匀性也对延长其寿命有着重要的影响。而实现柔性屏的折叠部分的曲率变形以及各处曲率的均匀性的关键就在于电子设备的转轴机构。因此,如何设计转轴机构以提高柔性屏的可靠性是当前亟待解决的问题。
发明内容
本申请提供一种转轴机构以及具有该转轴机构的电子设备,主要目的提供一种随着电子设备的折叠和展开,长度能够发生变化的转轴机构。
为达到上述目的,本申请的实施例采用如下技术方案:
第一方面,本申请提供了一种转轴机构,该转轴机构可以被应用在具有柔性屏的可折叠电子设备中,比如,可以被应用在折叠屏手机、折叠屏平板电脑等设备中。
该转轴机构包括主体、第一门板、第二门板和中间门板,以及第一摆臂和第二摆臂。第一门板、第二门板和中间门板位于主体的同一侧,第一门板和第二门板相对设置在中间门板的两侧,第一摆臂和第二摆臂相对设置在主体的两侧。第一摆臂靠近主体的一端与主体转动连接,第一门板的一端与第一摆臂远离主体的一端转动连接,另一端与主体滑动连接,第二摆臂靠近主体的一端与主体转动连接,第二门板的一端与第二摆臂远离主体的一端转动连接,另一端与主体滑动连接。这样,第一摆臂、主体和第一门板可以构成一种曲柄滑块机构,同样的,第二摆臂、主体和第二门板也构成一种曲柄滑块机构。另外,第一门板、第二门板、第一摆臂和第二摆臂中的至少一个还设有支撑部,第一摆臂和第二摆臂相向转动时,第一摆臂带动第一门板的靠近主体的一端沿远离主体的方向运动,第二摆臂带动第二门板的靠近主体的一端沿远离主体 的方向运动,以使支撑部与中间门板分离,中间门板朝靠近主体的方向移动;第一摆臂和第二摆臂相背离转动时,第一摆臂带动第一门板的靠近主体的一端沿靠近主体的方向运动,第二摆臂带动第二门板的靠近主体的一端沿靠近主体的方向运动,以使支撑部与中间门板抵接,带动中间门板朝远离主体的方向移动。
本申请给出的转轴机构中,由于位于中间门板两侧的第一门板和第二门板均可以在相对应的第一摆臂和第二摆臂的带动下相对主体反向转动,这样,将柔性屏设置在第一门板、中间门板和第二门板的背离主体的一侧时,当第一门板和第二门板相对主体相向转动时,就可以实现电子设备的折叠,相反,当第一门板和第二门板相对主体相背离转动时,可以实现电子设备的展开。
另外,本申请给出的转轴机构结构中,位于第一门板和第二门板之间的中间门板不是固定的,而是可以相对主体移动的。当第一门板和第二门板相向转动时,即电子设备由展平状态朝折叠状态切换时,中间门板靠近主体移动,这样的话,可以增长该转轴机构的长度尺寸,并且第一门板、中间门板和第二门板会围城接近三角形结构的容纳腔,折叠中的且靠近转轴机构的柔性屏部分会处于形成的容纳腔内,而不会被挤压,因此,可以避免柔性屏因为多次折叠挤压而损坏的现象。
当第一门板和第二门板相背离转动时,即电子设备由折叠状态朝展平状态转动时,中间门板远离主体移动,这样可以将之前增长的转轴机构的长度进行缩短,直至移动至第一门板、中间门板和第二门板处于同一平面内,从而用于支撑展平的柔性屏。
本申请提供的驱动中间门板移动的驱动结构,是通过第一门板、第二门板、第一摆臂和第二摆臂中的至少一个结构的支撑部来实现。也就是通过第一门板、第二门板、第一摆臂和第二摆臂转动时,支撑部与中间门板的抵接和分离,驱动中间门板相对主体靠近或者远离,相比额外设置的驱动结构,本申请采用机械联动,这样可以简化整个转轴机构的结构,且容易实现。
在第一方面可能的实现方式中,第一摆臂和第二摆臂相向转动,带动第一门板和第二门板相向转动至第一位置时,第一门板、中间门板和第二门板围成容屏空间。这里的第一位置可以理解为电子设备处于闭合状态时第一门板和第二门板所处的位置,此时,第一门板和第二门板可以形成预设夹角,同时中间门板下沉至预设位置,三者之间可以形成一个类似三角形但开放式的空间,柔性屏的弯折部分被容纳在该空间中。
可以这样讲,当第一摆臂和第二摆臂相向转动至电子设备处于闭合状态,转轴机构的长度尺寸增长,以增加柔性屏的曲率半径,避免柔性屏被挤压。
在第一方面可能的实现方式中,第一摆臂和第二摆臂相背离转动,带动第一门板和第二门板相背离转动至第二位置时,第一门板、中间门板和第二门板处于同一平面以形成支撑面。
也就是说,在第一摆臂和第二摆臂的带动下,第一门板、中间门板和第二门板可以处于同一平面,以支撑展平的柔性屏,用户可以在展平的柔性屏上进行操作。
在第一方面可能的实现方式中,第一门板和第二门板上均设有支撑部。
在第一方面可能的实现方式中,第一摆臂和第二摆臂上均设有支撑部。
在第一方面可能的实现方式中,第一门板、第二门板、第一摆臂和第二摆臂上均设有支撑部。
由于第一门板和第二门板对称设置在中间门板的两侧,第一摆臂和第二摆臂对称设置在主体的两侧,这样一来,可以提升对中间门板支撑的平衡性,使得中间门板稳定的移动。
在第一方面可能的实现方式中,第一摆臂和第二摆臂相向运动过程中,包括依次出现的第一阶段、第二阶段和第三阶段;在第一阶段,第一门板的支撑部和第二门板的支撑部均与中间门板抵接,第一摆臂的支撑部和第二摆臂的支撑部均与中间门板分离;在第二阶段,第一摆臂的支撑部和第二摆臂的支撑部均与中间门板抵接;在第三阶段,第一门板的支撑部、第二门板的支撑部、第一摆臂的支撑部和第二摆臂的支撑部均与中间门板分离。
由于第一门板、第一摆臂、主体、第二门板和第二摆臂之间的相对连接关系,若第一门板、第二门板、第一摆臂和第二摆臂中的任一结构的支撑部均能够对中间门板产生作用力时,可以控制中间门板的移动速度。比如当电子设备由展平状态朝闭合状态运动的初始阶段时,中间门板在第一门板的支撑部和第二门板的支撑部的控制下能够快速移动,避让出足够的容纳空间,以免柔性屏出现起拱现象,随着柔性屏的继续折叠,中间门板又会在第一摆臂的支撑部和第二摆臂的支撑部的控制下降低移动速度,防止中间门板的撤力过快导致柔性屏的折弯处出现应力较大,甚至被拉扯损坏的现象。
在第一方面可能的实现方式中,转轴机构还包括可伸缩的牵拉件,牵拉件的一端与主体固定,另一端与中间门板固定,牵拉件用于带动中间门板朝靠近主体的方向移动。
当第一门板和第二门板相对主体相向运动使电子设备折叠的过程中,由于中间门板靠近主体且被可伸缩的牵拉件牵引住,这样可以维持第一门板、第二门板和中间门板形成的三角形容纳空间结构,防止中间门板远离主体,又对柔性屏产生挤压。
在第一方面可能的实现方式中,可伸缩的牵拉件包括弹簧。当然也可以是其他弹性结构。
在第一方面可能的实现方式中,转轴机构还包括导向结构,导向结构用于引导中间门板相对主体沿与中间门板的长度方向相垂直的方向移动。
由于第一门板、第二门板、第一摆臂和第二摆臂中的任一结构在对中间门板施加作用力时,可能无法时刻保障作用力与中间门板的长度方向相垂直,会引起中间门板移动偏移的现象。所以,通过引入导向结构,以引导中间门板的上下直线运动。
在第一方面可能的实现方式中,导向结构包括:开设在主体内的导向孔和滑动设置在导向孔内的导向块;导向孔沿与中间门板的长度方向相垂直的方向延伸;导向块与中间门板固定。
在上述技术方案中,导向块与中间门板相对固定,导向孔开设在主体上,通过导向块在导向孔内滑动引导中间门板直线移动。可以理解的,在其他实施方式中,将导向块设置在主体上,导向孔开设在中间门板上。总之,通过导向块与导向孔的滑动配合引导中间门板的直线运动。
在第一方面可能的实现方式中,导向孔的靠近中间门板的开口处具有遮挡部,牵拉件设置在导向孔内,导向块具有从靠近中间门板的表面朝导向孔底面方向开设的盲孔,牵拉件的一端与遮挡部固定,另一端抵接在盲孔的底面。
这样,导向孔不仅具有容纳导向块的作用,还将牵拉件隐藏在其内。
在第一方面可能的实现方式中,第一门板、第二门板和中间门板均具有两个相对的表面,其中一个表面作为支撑面支撑柔性屏,另一个表面背离支撑面。其中,中间门板背离支撑面的表面与主体相对。第一门板和第二门板背离支撑面的一面具有延伸部,延伸部朝中间门板的相对主体的一面延伸,延伸部具有朝中间门板凸出的第一凸台,以形成第一门板的支撑部和第二门板的支撑部。
通过在第一门板的延伸部和第二门板的延伸部上均设置第一凸台,第一门板的延伸部和第二门板的延伸部与中间门板抵接,带动中间门板相对主体移动。
在第一方面可能的实现方式中,第一门板的延伸部和第二门板的延伸部上均开设有门板滑槽,门板滑槽内设置有滑动轴,滑动轴与主体固定连接,滑动轴相对门板滑槽滑动,实现第一门板和第二门板与主体的滑动连接。
通过在第一门板和第二门板的延伸部上设置用于与中间门板抵接的第一凸台,带动中间门板移动,同时,还可以在第一门板和第二门板的延伸部上开设滑槽,实现第一门板与主体的滑动连接。相比再单独设置用于开设门板滑槽的结构,本申请给出的结构更加简化。
在第一方面可能的实现方式中,第一摆臂和第二摆臂靠近主体的端部具有朝中间门板的相对主体的一表面凸出的第二凸台,以形成第一摆臂的支撑部和第二摆臂的支撑部。
即通过在第一摆臂和第二摆臂上均设置第二凸台,以与中间门板抵接,带动中间门板相对主体移动。
在第一方面可能的实现方式中,主体上设置有第一弧形凸块和第二弧形凸块;第一摆臂的靠近主体的一端形成有呈弧形结构的第一弧臂,第一弧臂上开设有用于装配第一弧形凸块的第一弧形卡槽;第一弧形凸块相对第一弧形卡槽滑动,实现第一摆臂和主体的转动连接;第二摆臂的靠近主体的一端形成有呈弧形结构的第二弧臂,第二弧臂上开设有用于装配第二弧形凸块的第二弧形卡槽;第二弧形凸块相对第二弧形卡槽滑动,实现第二摆臂和主体的转动连接;第一弧臂和第二弧臂上设置第二凸台。
即通过在靠近主体的弧臂上设置弧形卡槽,以及在主体上设置弧形凸块,通过弧形卡槽和弧形卡槽的相对滑动,实现第一摆臂和第二摆臂相对主体转动,并且,将用于与中间门板抵接的第二凸台也设置在弧臂上,结构紧凑,简化了该转轴机构的结构。
在第一方面可能的实现方式中,第一门板的相对主体的一面具有朝第一摆臂延伸的第一门板弧形凸块,第一摆臂上开设有用于装配第一门板弧形凸块的第三弧形卡槽,第一门板弧形凸块相对第三弧形卡槽滑动,实现第一门板和第一摆臂的转动连接;第二门板的相对主体的一面具有朝第二摆臂延伸的第二门板弧形凸块,第二摆臂上开设有用于装配第二门板弧形凸块的第四弧形卡槽,第二门板弧形凸块相对第四弧形卡槽滑动,实现第二门板和第二摆臂的转动连接。
和上述第一摆臂和第二摆臂相对主体的转动连接的结构类似,也是通过弧形凸块和弧形卡槽的转动配合实现第一门板和第一摆臂的转动连接,第二门板和第二摆臂的转动连接,这样的转动连接方式结构简单,实施也方便。
在第一方面可能的实现方式中,转轴机构还包括同步结构,同步结构分别与第一 摆臂和第二摆臂滑动连接,同步结构用于实现第一摆臂和第二摆臂的同步反向转动。
通过设置同步结构,可以实现第一门板和第二门板的同步反向转动,也就是可以实现第一门板和第二门板的同步相向转动和同步相背离转动,该结构的转轴机构被应用在电子设备时,可以明显的提升用户体验度。
在第一方面可能的实现方式中,同步结构包括齿轮传动结构,比如,包括依次外啮合的第一齿轮连杆、第一从动齿轮、第二从动齿轮和第二齿轮连杆,具体的,第一齿轮连杆的一端与第一摆臂的远离主体的一端滑动连接,另一端形成第一啮合齿,第一从动齿轮与第一啮合齿外啮合,第二从动齿轮与第一从动齿轮外啮合,第二齿轮连杆的一端与第二摆臂的远离主体的一端滑动连接,另一端形成第二啮合齿,第二从动齿轮与第二啮合齿外啮合。
当然,在一些可能的实现方式中,也可以包括更多的偶数个从动齿轮。
在第一方面可能的实现方式中,转轴机构还包括端盖,端盖设置在主体的远离第一门板、中间门板和第二门板的一侧,且主体与端盖相对固定。
将包含有端盖的转轴机构应用在电子设备中时,通过设置端盖,可以使得当第一壳体和第二壳体折叠后,端盖露出,避免外观形成缝隙缺口,这样可以提升整个电子设备的外形美观度。
第二方面,本申请还提供了一种电子设备,包括第一壳体和第二壳体、柔性屏和上述第一方面任一实现方式中的转轴机构,其中,第一壳体与第一摆臂固定连接,第二壳体与第二摆臂固定连接;第一壳体包括第一表面,第二壳体包括第二表面,柔性屏连续覆盖于第一壳体的第一表面、转轴机构以及第二壳体的第二表面,且柔性屏分别与第一壳体的第一表面和第二壳体的第二表面固定连接。
本申请给出的电子设备中,由于包含了上述第一方面中的转轴机构,那么,当第一壳体和第二壳体相向运动,不仅转轴机构中的第一门板和第二门板会产生旋转运动,同时,位于第一门板和第二门板之间的中间门板会朝主体运动,为折叠中的柔性屏避让出足够的容纳空间,防止柔性屏挤压变形。相反的,当第一壳体和第二壳体相背离运动,带动柔性屏展平时,中间门板会远离主体移动,直至第一门板、中间门板和第二门板处于同一平面内,以支撑展平的柔性屏。
还有,驱动中间门板移动的驱动结构采用的是转动的第一摆臂、第一门板、第二摆臂或者第二门板中的至少一个结构上的支撑部,这样,可以简化该转轴机构的结构。
在第二方面可能的实现方式中,柔性屏由连续设置的第一区域、第二区域、第三区域、第四区域和第五区域组成;第一区域与第一壳体的第一表面固定连接;第二区域与第一门板的朝向柔性屏的表面固定连接;第三区域与中间门板相对设置,且第三区域能够相对中间门板移动;第四区域与第二门板的朝向柔性屏的表面固定连接;第五区域与第二壳体的第二表面固定连接。
在第二方面可能的实现方式中,转轴机构包括端盖;在电子设备展平时,端盖被隐藏在第一壳体和第二壳体内;在电子设备折叠时,端盖被暴露在第一壳体和第二壳体外,以弥补第一壳体和第二壳体之间的缝隙。
也就是说,不论该电子设备处于折叠状态,还是处于展平状态时,从电子设备的外观看,第一壳体和第二壳体均是无缝闭合,进而提升该显示设备的外观美度。
在第二方面可能的实现方式中,电子设备包括移动终端,比如,可以是折叠手机、折叠平板、折叠电子书等。
附图说明
图1a为本申请实施例提供的一种电子设备处于展平状态时的爆炸图;
图1b为本申请实施例提供的一种电子设备处于展平状态时去掉柔性屏后的爆炸图;
图1c为本申请实施例提供的一种电子设备处于展平状态时的背面结构图;
图2为本申请实施例提供的一种电子设备处于展平状态时的结构图;
图3a为本申请实施例提供的一种电子设备处于中间状态时的结构图;
图3b为本申请实施例提供的一种电子设备处于中间状态时的侧面视图;
图4为本申请实施例提供的一种电子设备处于闭合状态时的结构图;
图5a为外折式电子设备处于展平状态时的结构示意图;
图5b为外折式电子设备处于闭合状态时的结构示意图;
图6a为内折式电子设备处于展平状态时的结构示意图;
图6b为内折式电子设备处于闭合状态时的结构示意图;
图7a为本申请实施例提供的电子设备处于展平状态时,柔性屏和转轴机构的状态图;
图7b为本申请实施例提供的电子设备处于闭合状态时,柔性屏和转轴机构的状态图;
图8为现有的一种电子设备处于展平状态时,转轴机构的结构示意图;
图9为本申请实施例提供的一种转轴机构的分解图;
图10为本申请实施例提供的一种转轴机构中第一摆臂、主体和第一门板形成的曲柄滑动原理图;
图11为本申请实施例提供的一种转轴机构中第一摆臂、主体和第一门板形成的曲柄滑动在运动时的某一时刻的状态图;
图12为本申请实施例提供的一种第一摆臂和第二摆臂在展平时的连接关系示意图;
图13为本申请实施例提供的一种第一摆臂和第二摆臂在展平和折叠之间的一个位置的连接关系示意图;
图14为本申请实施例提供的一种第一摆臂和第二摆臂在折叠时的连接关系示意图;
图15为本申请实施例提供的一种第一摆臂的部分的结构图;
图16为本申请实施例提供的一种主体的部分的结构图;
图17为本申请实施例提供的一种第一摆臂的结构图;
图18为本申请实施例提供的一种第一摆臂的部分的结构图;
图19为本申请实施例提供的一种第一门板的结构图;
图20为本申请实施例提供的一种第一门板、第一摆臂和第二门板在展平时的连接关系示意图;
图21为本申请实施例提供的一种第一门板、第一摆臂和第二门板在展平和折叠之间的一个位置的连接关系示意图;
图22为本申请实施例提供的一种第一门板、第一摆臂和第二门板在折叠时的连接关系示意图;
图23a为本申请实施例提供的一种开设在第一门板上的第一门板滑槽的结构图;
图23b为本申请实施例提供的另一种开设在第一门板上的第一门板滑槽的结构图;
图23c为本申请实施例提供的另一种开设在第一门板上的第一门板滑槽的结构图;
图24为本申请实施例提供的一种中间门板、主体和牵拉件的一种连接关系示意图;
图25为本申请实施例提供的一种第一摆臂驱动中间门板移动的连接关系示意图;
图26为本申请实施例提供的一种第一摆臂的部分的结构图;
图27为本申请实施例提供的一种第一门板驱动中间门板移动的连接关系示意图;
图28为本申请实施例提供的一种第一摆臂驱动中间门板移动的简单示意图;
图29为本申请实施例提供的一种中间门板、主体和导向结构的爆炸图;
图30为本申请实施例提供的一种中间门板、主体和导向结构连接的剖面图;
图31为本申请实施例提供的一种同步结构的结构图;
图32为本申请实施例提供的一种同步结构与第一摆臂、第二摆臂的连接关系示意图;
图33为本申请实施例提供的一种具有两组同步结构的结构图。
附图标记:
1000-转轴机构;2000-第一壳体;2001-第一表面;2002-第三表面;3000-第二壳体;3001-第二表面;3002-第四表面;4000-柔性屏;
11-中间门板;12-第一门板;13-第二门板;14-主体;151-第一摆臂;152-第二摆臂;16-滑动轴;171-第一齿轮连杆;1711-第一啮合齿;172-第二齿轮连杆;1721-第二啮合齿;173-第一从动齿轮;174-第二从动齿轮;175-第一连接轴;176-第二连接轴;177-第三连接轴;178-第四连接轴;19-销轴;201-第一同步结构;202-第二同步结构;21-端盖;22-导向块;23-牵拉件;24-导向孔;25-连接件;26-盲孔;
121-延伸部;12a-第一门板弧形凸块;12b-第一门板滑槽;12c-凸台;13b-第二门板滑槽;14a-第一弧形凸块;14b-第二弧形凸块;141-遮挡部;1511-支架;1512-弧臂;151a-第一弧形卡槽;151b-安装孔;151c-第三弧形卡槽;151d-第一轨迹槽;151e-支撑部;151f-凸台;152a-第二弧形卡槽;152d-第二轨迹槽。
具体实施方式
下面结合本申请实施例中的附图对本申请以下各个实施例进行描述。
本申请实施例提供一种可折叠的电子设备。可折叠的电子设备可以包括具有柔性屏且可改变柔性屏及自身的展开或折叠形态的各种电子设备。在不同使用需求下,可折叠的电子设备可以展开至展平状态,也可以折叠至闭合状态,还可以处于展平状态与闭合状态之间的中间状态。也就是说,可折叠的电子设备至少具有两种状态,即展平状态和闭合状态。在一些情况下,还可以进一步包括第三种状态,即位于展平状态和闭合状态之间的中间状态。可以理解的是,中间状态并不是只具有唯一的状态,可 以是电子设备处于展平状态和闭合状态之间的任意一种或多种状态。
示例性的,可折叠的电子设备可以但不限于为手机、平板电脑、笔记本电脑、电子书阅读器、照相机、可穿戴设备、家用电子设备等。为了便于理解,在本申请各实施例中,可折叠的电子设备以手机为例进行说明。
参照图1a和图1b,图1a为本申请一实施例提供的可折叠的电子设备的爆炸图,图1b为本申请一实施例提供的可折叠的电子设备去掉柔性屏的爆炸图。结合图1a和图1b,可折叠的电子设备可以包括转轴机构1000、第一壳体2000、第二壳体3000以及柔性屏4000。
其中,第一壳体2000和第二壳体3000设置于转轴机构1000的两侧并分别与转轴机构1000连接,转轴机构1000能够运动,以使第一壳体2000与第二壳体3000相对折叠或相对展开。
第一壳体2000和/或第二壳体3000可以分别形成安装空间,以用于安装电子设备的电路板、电池、受话器、扬声器、摄像头等电子元器件。其中,电路板可以集成电子设备的主控制器、存储单元、天线模块、电源管理模块等电子元器件,电池则可以为柔性屏4000、电路板、受话器、扬声器、摄像头等电子元器件供电。第一壳体2000与第二壳体3000可以是等厚的也可以是不等厚的,本申请实施例不作限定。
在一种可能的设计中,第一壳体2000和第二壳体3000可以都设有安装空间,将上述电子设备的电子元器件分布于两侧壳体中。在另一种可能的设计中,可以仅在第一壳体2000中设有安装空间,将上述电子设备的电子元器件集中分布于第一壳体2000中;或者,第一壳体2000和第二壳体3000都可以设有安装空间,但是上述电子设备的元器件中的大部分设于第一壳体2000中,小部分设于第二壳体3000中,使第二壳体3000更加轻巧,从而可以更便捷的进行折叠和展开。
参照图1b和图1c,图1c为本申请一实施例提供的可折叠的电子设备的背部结构示意图。在本申请实施例中,第一壳体2000具有第一表面2001以及与第一表面2001相背设置的第三表面2002,第二壳体3000具有第二表面3001以及与第二表面3001相背设置的第四表面3002。其中,第一壳体2000的第一表面2001与第二壳体3000的第二表面3001可共同用于支撑柔性屏4000,而第一壳体2000的第三表面2002与第二壳体3000的第四表面3002可作为电子设备的外观面。另外,可以理解的是,在一些应用场景下,在第一壳体2000的第三表面2002,和/或第二壳体3000的第四表面3002也可设置显示屏,该显示屏可为柔性屏或者非柔性屏,在此不进行具体限定。
参照图2,图2为第一壳体2000与第二壳体3000相对展开至展平状态的电子设备的结构示意图。在本申请实施例中,第一壳体2000与第二壳体3000处于展平状态时,一并参照图1a和图2,第一壳体2000的第一表面2001和第二壳体3000的第二表面3001处于同一平面,此时第一表面2001和第二表面3001之间的夹角可以大致呈180°(也允许存在一定角度的公差,第一表面2001和第二表面3001之间的夹角例如为165°、177°或者185°)。
一并参照图3a和图3b,图3a展示的是第一壳体2000与第二壳体3000相对转动(展开或折叠)至中间状态的电子设备的结构示意图。图3b展示的是第一壳体2000与第二壳体3000相对转动(展开或折叠)至中间状态的电子设备的侧视图。在图3a 中省略了柔性屏4000,以便于展示中间状态时两个壳体的形态。此时电子设备可以处于展平状态与闭合状态之间的任意状态,示例性的,第一壳体2000的第一表面2001与第二壳体3000的第二表面3001之间的夹角例如可为130°~150°。
又参照图4,图4为第一壳体2000与第二壳体3000相对折叠至闭合状态的电子设备的结构示意图。可一并参照图1a和图4,第一壳体2000与第二壳体3000处于闭合状态时,第一壳体2000的第一表面2001与第二壳体3000的第二表面3001彼此面对或彼此背离(具体与折叠方式有关),此时第一壳体2000的第一表面2001与第二壳体3000的第二表面3001之间可存在微小的夹角或相互平行以使两壳体能完全合拢(也允许存在一定角度的公差)。
柔性屏4000能够用于显示信息并为用户提供交互界面,在本申请各实施例中,柔性显示屏4000可以但不限于为有机发光二极管(organic light-emitting diode,OLED)显示屏,有源矩阵有机发光二极体或主动矩阵有机发光二极体(active-matrix organic light-emitting diode,AMOLED)显示屏,迷你发光二极管(mini organic light-emitting diode)显示屏,微型发光二极管(micro organic light-emitting diode)显示屏,微型有机发光二极管(micro organic light-emitting diode)显示屏,量子点发光二极管(quantum dot light emitting diodes,QLED)显示屏等。
进一步参照图1a和图2,柔性屏4000连续的覆盖于可折叠的电子设备的第一壳体2000的第一表面2001、转轴机构1000以及第二壳体3000的第二表面3001上。其中,柔性屏4000可以分为连续的区域A、B、C、D和E,其中,区域B、C、D包括被折叠时的弯折部分。区域A与第一壳体2000的第一表面2001对应,其可固定连接于第一壳体2000的第一表面2001,区域E与第二壳体3000的第二表面3001对应,其可固定连接于第二壳体3000的第二表面3001。需要说明的是,图中示出的区域B、C、D三者的分界线仅为示例性的,可以根据具体的转轴机构1000的设计调整区域B、C、D的分界线。
如前文所述,电子设备可以通过转轴机构1000的运动,在展平状态与闭合状态之间进行切换,柔性屏4000可随第一壳体2000与第二壳体3000折叠或展开。通常情况下,可折叠的电子设备的折叠方式分为外折式和内折式,其中,外折式是指电子设备由展平状态转换至闭合状态的过程中以及电子设备在闭合状态下,柔性屏4000都处于电子设备的外侧,也即在折叠过程中以及闭合状态下,柔性屏4000仍然对用户可见,在闭合状态下用户还可以在柔性屏4000上进行一些操作。也就是上文中所述的,第一壳体2000的第一表面2001与第二壳体3000的第二表面3001可以相背彼此运动,且第一壳体2000与第二壳体3000处于闭合状态时,第一壳体2000的第一表面2001与第二壳体3000的第二表面3001彼此背离。一并参照图5a和图5b,图5a为外折式电子设备处于展平状态时的结构示意图,图5b为外折式电子设备处于闭合状态时的结构示意图。在电子设备处于闭合状态时,柔性屏4000位于电子设备的外侧。可以理解的,如果不加以调整,外折式的电子设备在折叠的过程中(即由图5a到图5b的过程中),柔性屏4000的旋转半径会大于转轴机构1000的旋转半径,导致柔性屏4000的过度拉伸。因此,外折式的转轴机构1000设计需要考虑如何尽可能避免或减小这种拉伸产生。
相对的,内折式是指在电子设备由展平状态转换至闭合状态的过程中以及电子设 备在闭合状态下,柔性屏4000都处于电子设备的内侧,也即在折叠过程中柔性屏4000逐渐对用户不可见,直到闭合状态下,柔性屏4000将收容在两个壳体之间而完全隐藏。也就是上文中所述的,第一壳体2000的第一表面2001与第二壳体3000的第二表面3001可以相向彼此运动,且第一壳体2000与第二壳体3000处于闭合状态时,第一壳体2000的第一表面2001与第二壳体3000的第二表面3001彼此面对。可一并参照图6a和图6b,图6a为内折式电子设备处于展平状态时的结构示意图,图6b为内折式电子设备处于闭合状态时的结构示意图。在电子设备处于闭合状态时,柔性屏4000位于电子设备的内侧。可以理解的是,内折式的电子设备在折叠的过程中(即由图6a到图6b的过程中),柔性屏4000会被对折,而柔性屏4000所能承受的最大弯折程度是有限的,因此存在对应的临界曲率半径R(或临界曲率半径范围),一旦柔性屏4000的弯折位置处的曲率半径小于该临界曲率半径R时,极易造成柔性屏4000的断裂,而无法继续使用。除此之外,即使弯折位置处的曲率半径大于临界曲率半径,如果电子设备的转轴机构1000的曲率半径太小也会导致柔性屏的褶皱、折痕、内部层次的错位等问题,因此,内折式的电子设备的转轴机构1000的设计,需要尽可能使柔性屏4000的弯折位置处的曲率半径增大,进而减小对柔性屏4000的挤压。
容易理解的,一方面,增加折叠状态下的两个壳体之间的间隔距离可以增大曲率半径,使得柔性屏4000不会被直接对折。两个壳体之间的间隔距离越大,柔性屏4000的弯折位置的曲率半径就越大,对柔性屏4000的挤压就越小;两个壳体之间的间隔距离越小,柔性屏4000的弯折位置的曲率半径就越小,对柔性屏4000的挤压就越大,折痕就越明显。另一方面,两个壳体之间的间隔距离越大,在折叠状态下的电子设备的厚度就越大,会影响电子设备的便携性,并且这个间隔也容易导致灰尘、异物等进入,进而也会伤害和磨损柔性屏,影响柔性屏的寿命,同时也会影响转轴机构的寿命。
基于上文中内折式的可折叠的电子设备的问题,本申请实施例提供了一种可折叠的电子设备以及适用于该电子设备中的转轴机构,旨在提高电子设备的便携性的情况下,还能够在折叠过程中及闭合状态下,为柔性屏4000提供较大的容纳空间,以增大柔性屏4000的弯折位置处的曲率半径,从而降低柔性屏4000被挤压损坏的风险。
下面先对本申请提供的转轴机构1000可能涉及的主要组件以及相关机构进行简单的介绍,后文将对每个部分的具体结构和实现原理进行进一步的详细说明。
图7a和图7b示出了本申请提供的转轴机构1000处于两种不同状态时的简易示意图。其中,图7a示出的是电子设备处于展平状态时,柔性屏4000和转轴机构1000的状态图,图7b示出的是电子设备处于闭合状态时,柔性屏4000和转轴机构1000的状态图。
一并参照图7a和图7b,本申请给出的转轴机构1000包括第一门板12、第二门板13以及中间门板11,第一门板12和第二门板13布设在中间门板11的相对的两侧,即中间门板11被夹在第一门板12和第二门板13之间。转轴机构1000还包括主体14,且第一门板12、中间门板11和第二门板13处于主体14的同一侧。可以这样理解,如图7a,第一门板12具有相对的A1面和B1面,第二门板13具有相对的A2面和B2面,中间门板11具有相对的A3面和B3面。A1面、A2面和A3面处于同一侧面,B1面、B2面和B3面处于同一侧面。主体14设置在B1面、B2面和B3面一侧,则 柔性屏4000设置在A1面、A2面和A3面一侧。
本申请给出的转轴机构1000中,第一门板12能够相对主体14转动,第二门板13也能够相对主体14转动,且第一门板12的转动方向与第二门板13的转动方向相反。相反转动的第一门板12和第二门板13可以包括两种状态,第一种为电子设备折叠时,第一门板12和第二门板13相向(或者被称为相对)转动;第二种为电子设备展开时,第一门板12和第二门板13相背离转动。
另外,本申请给出的转轴机构1000中,在第一门板12和第二门板13转动的过程中,中间门板11能够朝靠近主体14的方向移动,或者朝远离主体14的方向移动。
如图7a,当电子设备处于展平状态时,第一门板12、中间门板11和第二门板13处于同一平面内,并用于支撑展平的柔性屏4000。当电子设备由展平状态朝闭合状态变换时,如图7a至图7b所示,第一门板12相对主体14沿旋转方向P1方向转动,第二门板13相对主体14沿与P1方向相反的P2方向转动。也即,第一门板12和第二门板13远离主体的端部相互靠拢,第一门板12和第二门板13靠近主体的端部相互远离,使得柔性屏4000在第一门板12和第二门板13之间弯折。并且,在第一门板12和第二门板13相对主体14彼此靠近的过程中,中间门板11沿图7b示出的P3方向靠近主体14移动,比如,中间门板11与主体14之间的距离可以由图7a的D1缩小至图7b的D2。从而,第一门板12、中间门板11和第二门板13形成了接近三角形的容纳腔,柔性屏4000被容纳在三角形的容纳腔内,并可呈类水滴状。可以这样理解,通过中间门板11朝主体14的移动,可以为柔性屏4000避让出足够大的容纳空间,以增大柔性屏4000的弯折位置处的曲率半径,降低柔性屏4000被挤压损坏的风险。
相反的,当电子设备由闭合状态朝展平状态变换时,如图7b至图7a所示,第一门板12相对主体14沿与旋转方向P1相反的方向转动,第二门板13相对主体14沿与P2方向相反的方向转动。也即,第一门板12和第二门板13相互背离,使得柔性屏4000展开。在第一门板12和第二门板13远离主体的端部相对主体14彼此远离的过程中,中间门板11沿图7b示出的与P3方向相反的方向远离主体14移动,直至第一门板12、中间门板11和第二门板13运动至位于同一平面内,以支撑展平的柔性屏4000。
基于上述对本申请提供的转轴机构1000结构的描述,以及对转轴机构1000中各个结构之间的运动关系的描述,可以看出,本申请给出的转轴机构1000中,不仅第一门板12和第二门板13相对主体14可以转动,中间门板11还可以相对主体14升降,使得转轴机构1000的长度能够发生变化。即当柔性屏4000被折叠时,转轴机构1000的长度能够被拉长,为柔性屏4000避让出更多的容纳空间,增大柔性屏4000的弯折位置处的曲率半径,避免对靠近转轴机构1000的柔性屏4000部分产生挤压。当柔性屏4000被展开时,转轴机构1000的长度能够被缩短。也就是说,该转轴机构1000可以促使柔性屏4000在折叠过程中处于任意角度时,柔性屏4000的长度尺寸基本不变,即不会被挤压或者不会被拉伸。
在现有一些实施方式中,如图8,图8示出的是现有的一种电子设备的简易示意图。在此电子设备中,柔性屏4000滑动设置在第一壳体2000和第二壳体3000上,若电子设备在多次折叠后,柔性屏4000可能会因为多次滑动出现磨损、甚至损坏的现象。但是,本申请给出电子设备中,柔性屏4000的部分与第一壳体2000固定连接,柔性 屏4000的另一部分与第二壳体3000固定连接,相比图8所示的柔性屏4000滑动设置,本申请会明显的降低柔性屏4000被磨损的程度,以提升柔性屏的折叠次数,提升柔性屏4000的使用寿命,提升该电子设备的使用性能。
再结合图8,由于柔性屏4000滑动设置在第一壳体2000和第二壳体3000上,所以,第一壳体2000和第二壳体3000的边缘具有用于容纳柔性屏4000滑动空间的外露区域(如图8所述的Q区域),这样,就会降低柔性屏4000在第一壳体2000和第二壳体3000上的屏占比。但是,本申请给出的第一壳体2000和第二壳体3000相比图8所示结构无需设置Q区域,在和图8所示电子设备外形尺寸相当的情况下,本申请可以提供面积更大的柔性屏4000,以提供更大的显示区域。
图9给出了一种转轴机构1000的可实现结构,图9为转轴机构1000的爆炸图。转轴机构1000除包括第一门板12、第二门板13、中间门板11以及主体14之外,还包括第一摆臂151和第二摆臂152,第一摆臂151和第二摆臂152相对设置在门板主体14的两侧。
其中,第一摆臂151的一端与主体14转动连接,另一端与第一壳体2000相对固定,第一门板12的一端与第一摆臂151转动连接,第一门板12的另一端与主体14滑动连接。第二摆臂152的一端与主体14转动连接,另一端与第二壳体3000相对固定,第二门板13的一端与第二摆臂152转动连接,第二门板13的另一端与主体14滑动连接。
结合图10,主体14、第一摆臂151和第一门板12构成了一种曲柄滑动机构。当外力作用在第一摆臂151使其相对主体14旋转时,由于第一门板12与第一摆臂151的旋转配合,以及第一门板12与主体14的滑动配合,因此,当第一摆臂151沿如图11的顺时针方向由实线位置A1位置旋转至虚线位置A2位置时,第一门板12也由实线位置B1运动至虚线位置B2。这样的话,当第一摆臂151相对主体14转动时,就会带动第一门板12相对主体14转动。也就是说,另外,第一摆臂151带动第一门板12转动,以使第一门板12沿垂直于第一摆臂151的转动轴线的方向相对主体14滑动,从而带动第一门板12的靠近主体14的一端沿远离主体14的方向运动。
类似的,主体14、第二摆臂152和第二门板13,和上述图10、图11一样,也构成了一种曲柄滑动机构。即当外力作用在第二摆臂152使其相对主体14旋转时,由于第二门板13与第二摆臂152的旋转配合,以及第二门板13与主体14的滑动配合,因此,当第二摆臂152旋转时,也会驱动第二门板12进行旋转。
在一些实施方式中,第一摆臂151可以包括一个或者多个,第二摆臂152也可以包括一个或者多个。在本申请实施中,如图9,给出了包括两个第一摆臂151和两个第二摆臂152的转轴机构1000。当第一摆臂151和第二摆臂152均具有多个时,第一摆臂151和第二摆臂152可以间隔布设。
下面将对第一门板12、第一摆臂151、主体14各结构之间的连接结构作具体说明。第二门板13、第二摆臂152与主体14之间的连接结构可参照对于第一门板12、第一摆臂151、主体14各结构之间的连接结构的描述。
第一摆臂151与主体14的转动连接具有多种可实现的结构,下面给出了三种不同的转动连接结构。当然,除此之外,还可以为其他的转动连接结构。
示例一,图12给出了一种转动连接结构。在本申请实施例中,主体14上设置有弧形的第一弧形凸块14a,第一摆臂151的靠近主体14的一端开设有第一弧形卡槽151a,第一弧形凸块14a装配在第一弧形卡槽151a内,第一弧形凸块14a与第一弧形卡槽151a之间的相对转动,便可实现第一摆臂151和主体14之间的转动。
图12示出的是电子设备处于展平状态时,第一摆臂151和第二摆臂152与主体14之间的位置关系。图13示出的是电子设备处于中间状态时,第一摆臂151和第二摆臂152与主体14之间的位置关系。当电子设备由图12至图13的折叠过程中,第一摆臂151的远离主体14的端部,以及第二摆臂152的远离主体14的端部均逐渐远离主体14。图14示出的是电子设备处于闭合状态时,第一摆臂151和第二摆臂152与主体14之间的位置关系。当电子设备由图13至图14的继续折叠过程中,第一摆臂151的远离主体14的端部,以及第二摆臂152的远离主体14的端部进一步的远离主体14。为了提升第一摆臂151和主体14转动的稳定性,如图15,图15示出了第一摆臂151的部分结构图,第一摆臂151开设有对称布设在两侧的两个第一弧形卡槽151a。相对应的,如图16,图16示出了主体14的部分结构图,主体14设置有两个第一弧形凸块14a,两个第一弧形卡槽151a与两个第一弧形凸块14a一一对应配合连接。
继续结合图15和图16,两个第一弧形凸块14a将第一摆臂151的端部夹持在其之间。这样的话,两个第一弧形凸块14a也起到限位的作用。具体的,当第一摆臂151和主体14相对转动时,可以防止第一摆臂151沿旋转轴线方向(如图16的L1方向)窜动,这样就可以使得第一摆臂151相对主体14平稳的转动。进一步的,可以保障柔性屏4000在折叠、展开时,不会沿旋转轴线方向偏移,提升电子设备的用户体验度。
当采用图15和图16所示转动连接结构时,第一弧形卡槽151a可以为四分之一圆弧槽、三分之一圆弧槽等。第一弧形凸块14a可以是四分之一圆弧凸块、三分之一圆弧凸块等。本领域技术人员可根据实际需求对第一弧形卡槽151a和第一弧形凸块14a的具体参数作适应调整,本申请对此不作具体限定。
示例二,可以在第一摆臂151上设置第一弧形凸块,在主体14上开设第一弧形卡槽,第一摆臂151上的第一弧形凸块与主体14上的第一弧形卡槽相配合,实现第一摆臂151和主体14的相对转动。也就是说,示例二相对于示例一,将第一弧形凸块和第一弧形卡槽的设置位置调换,可以实现相同的转动连接效果,因此可以参考示例一,设置第一弧形凸块和第一弧形卡槽的结构,这里不再赘述。
示例三,第一摆臂151和主体14可以采用转动轴实现转动连接。比如,在主体14上和第一摆臂151上均开设轴孔,并采用插入在轴孔内的转动轴将两者转动连接。
第二摆臂152与主体14的转动结构可以参照上述第一摆臂151与主体14的转动结构,当然,也可以选用其他结构实现转动。例如,图16给出了主体14上设置有弧形的第二弧形凸块14b,相对应的,第二摆臂152会开设有用于装配第二弧形凸块14b的第二弧形卡槽。
需要说明的是,为了保障柔性屏4000能够对称折叠展开,第二摆臂152在主体14上的旋转轴线,与第一摆臂151在主体14上的旋转轴线可以平行设置。例如,如图16,第一弧形卡槽151a与第一弧形凸块14a旋转配合的旋转轴线L1,与第二弧形凸块14b和第二弧形卡槽旋转配合的旋转轴线L2是平行的。
第一摆臂151和第二摆臂152的结构具有多种可实现的结构。比如,如图17,图17示出了第一摆臂151的一种可实现结构,其中,第一摆臂151包括支架1511和呈弧形结构的弧臂1512。支架1511与弧臂1512可以是两个相独立的零件,并通过连接件比如螺栓相对固定。在另一种可能的设计中,支架1511与弧臂1512也可以是一体成型结构。
上述的第一弧形卡槽151a可以开设在弧臂1512上,支架1511可以与第一壳体2000固定连接。比如,如图17,可以在支架1511上开设有安装孔151b,并通过安装在安装孔151b内的连接件比如铆钉将第一壳体101与第一摆臂151的支架1511固定连接。
为了简化制造工艺,第二摆臂152可以选择与第一摆臂151相同的结构。当然,第一摆臂151和第二摆臂152也可以采用其他类型的结构。
第一门板12与第一摆臂151的转动连接也具有多种可实现的结构。比如,如图18,图18示出了第一摆臂151的部分结构示意图,第一摆臂151上开设有第三弧形卡槽151c。如图19,图19示出了第一门板12的结构示意图,第一门体12是一个板体结构,第一门板12具有相对的第一表面(A1面)和第二表面(B1面)。第一门板12的与主体14相对的一侧设置有第一门板弧形凸块12a。一并结合图7a和图19,可以在第一门板12的B1面上设置第一门板弧形凸块12a。第一门板弧形凸块12a装配在第三弧形卡槽151c内,便可实现第一摆臂151和第一门板12之间的转动连接。为了促使第一门板12和第一摆臂151相对转动的稳定性,如图19,可以在第一门板12上设置多个第一门板弧形凸块12a,多个第一门板弧形凸块12a与多个第一摆臂151一对一转动连接。在另外一些可选择的实施方式中,也可以采用转动轴转动连接。
在第一摆臂151包括支架1511和呈弧形结构的弧臂1512时,弧臂1512靠近主体14且与主体14转动连接。那么,如图18,可以将第三弧形卡槽151c开设在远离主体14的支架1511上。第一门板12绕支架1511的转动方向和支架1511本身的转动方向可以是同向的,例如支架1511本身顺时针转动时,第一门板12绕支架1511顺时针转动;支架1511本身逆时针转动时,第一门板12绕支架1511逆时针转动。
同理的,第二门板13与第二摆臂152的转动连接结构,可以参照第一门板12与第一摆臂151的转动连接结构,在此不再赘述。
为了实现第一门板12与主体14的滑动连接,如图20,图20示出了电子设备处于展平状态时,用于体现第一门板12与第一摆臂151之间,以及第一门板12与主体14之间连接关系,并且还体现出了第二门板13与第二摆臂152之间,以及第二门板13与主体14之间连接关系。一并参考图19和图20,第一门板12的与主体14相对的一侧设置有延伸部121,且延伸部121朝中间门板11的靠近主体14的一侧延伸,延伸部121上开设有第一门板滑槽12b。具体的,第一门板12的B2面上可以设置有延伸部121,且延伸部121朝中间门板11的靠近主体14的一侧延伸,延伸部121上开设有第一门板滑槽12b。第一门板滑槽12b内装配有滑动轴16,且滑动轴16与主体14相对固定,通过滑动轴16与第一门板滑槽12b的滑动配合,实现第一门板12与主体14之间的滑动连接。在图20所示结构中,是采用滑动轴16与第一门板滑槽12b的滑动配合,实现两者之间的滑动连接。在另外一些实施例中,也可以在主体14上设 置可以沿第一门板12的第一门板滑槽12b滑动的滑块,并且可以使滑块与主体14呈一体结构设计。
类似的,第二门板13与主体14的滑动连接结构,可以参照第一门板12与主体14的滑动连接结构,在此不再赘述。比如,也可以采用图19和图20滑动轴与滑槽的滑动配合结构。
图20也给出了电子设备处于展平状态时,第一摆臂151、第二摆臂152、第一门板12和第二门板13的位置。图21给出了当电子设备折叠至中间状态时,第一摆臂151、第二摆臂152、第一门板12和第二门板13的位置,由图20和图21对比看出,第一摆臂151和第二摆臂152相向转动,滑动轴16沿着第一门板滑槽12b运动,以使第一门板12和第二门板13也相向转动。图22给出了当电子设备处于闭合状态时,第一摆臂151、第二摆臂152、第一门板12和第二门板13的位置,此时,滑动轴16滑动至第一门板滑槽12b的端部并与相对应的门板抵接。可以看出,在电子设备由展平状态转换至闭合状态的过程中,滑动轴16从第一门板滑槽12b远离主体14的一端滑动至第一门板滑槽12b靠近主体14的一端。
上述的第一门板滑槽12b可以设置为多种结构。例如,如图23a、图23b和图23c给出了三种不同的弧形结构的第一门板滑槽12b,由图23a至图23c,第一门板滑槽12b的弯曲半径逐渐减小。当第一门板滑槽12b的弯曲半径较小时,在电子设备折叠展开时,门板(第一门板12或者第二门板13)的转速越大。所以,在设计该转轴机构时,可以根据门板的转速需求,选择第一门板滑槽12b的弯曲半径大小。在一些其他可能的实现方式中,第一门板滑槽12b也可以是其他形态的结构,例如线型、弯折型等。
由于第一门板12和第二门板13在相对主体14转动时,位于第一门板12和第二门板13之间的中间门板11相对主体14是需要移动的,从而改变转轴机构1000的长度尺寸,防止柔性屏4000被挤压或被拉伸。那么,该转轴机构1000还可以包括用于带动中间门板11移动的驱动结构,在第一门板12和第二门板13相向转动时,驱动结构带动中间门板11朝靠近主体14的方向移动;在第一门板12和第二门板13相背离转动时,驱动结构带动中间门板11朝远离主体14的方向运动。
可以这样讲,当第一门板12和第二门板13相对主体14相向转动至电子设备处于闭合状态时,驱动结构会带动中间门板11移动至靠近主体14的第一位置,这样就会增加整个转轴机构1000的长度尺寸。在第一位置时,第一门板12和第二门板13形成预设夹角,第一门板12、中间门板11和第二门板13围成类似三角形的容纳腔,为靠近转轴机构1000的柔性屏4000避让出容纳空间,保障柔性屏4000在折叠过程中,始终保持长度不变。当第一门板12和第二门板13相对主体14相背离转动至电子设备处于展平状态时,驱动结构会带动中间门板11移动至远离主体14的第二位置,以缩短整个转轴机构1000的长度尺寸,在第二位置时,第一门板12、中间门板11和第二门板13处于同一平面内,以使柔性屏4000平整的位于它们之上。
本申请给出的转轴机构1000还包括可伸缩的牵拉件,图24为转轴机构1000的剖面图,用于体现主体14、中间门板11和可伸缩的牵拉件23的连接关系。其中,牵拉件23的一端与中间门板11固定,另一端与主体14固定连接。当中间门板11相对主 体14移动时,可伸缩的牵拉件23能够对中间门板11施加朝向主体14的作用力,以带动中间门板11朝主体14方向移动。
为了促使牵拉件23对中间门板11的牵拉力对称,如图24,可以采用多个牵拉件23,且这些多个牵拉件23对称设置在中间门板11的侧面。
可伸缩的牵拉件23具有多种可选择的结构。比如,如图24,牵拉件23为弹簧。当然,也可以选择其他伸缩件。
促使中间门板11朝远离主体14方向移动的驱动结构具有多种可实现方式。在一些可选择的实施方式中,驱动结构可以为电驱动结构(例如,直线马达),或者为液压驱动结构(例如,液压缸),或者为气压驱动结构(例如,气缸)。在另外一些实施方式中,因为在电子设备折叠展开过程中,第一门板12和第二门板13,以及第一摆臂151和第二摆臂152均会与中间门板11产生相对运动,所以,在本申请的一种可能的实施例中,可以利用运动的第一门板12、第二门板13、第一摆臂151和第二摆臂152中的一个或者多个对中间门板11产生作用力,以使中间门板11远离主体14移动。这样的话,可以简化整个转轴机构1000的结构,实施也方便。下面对第一门板12和第二门板13,以及第一摆臂151和第二摆臂152中的至少一个如何作为驱动结构带动中间门板11相对主体14移动进行具体说明。
在电子设备展平过程或者闭合过程中,第一门板12、第二门板13、第一摆臂151和第二摆臂152中的任一个相对主体14做旋转运动,那么,可以利用旋转的这些结构中的至少一个对中间门板11施加作用力,促使中间门板11运动。比如,如图25,图25示出了第一摆臂151带动中间门板11朝远离主体14方向移动的结构示意图。即电子设备在由闭合状态至展平状态运动的过程中,第一摆臂151的靠近主体14的端部会形成支撑部151e,支撑部151e与中间门板11的靠近主体14的一侧会抵接,随着第一摆臂151的转动,通过支撑部151e推动中间门板11朝远离主体14方向移动。
在一种可能的设计中,如图26,图26为第一摆臂151的部分结构图,结合图25和图26,可以采用第一摆臂151的弧臂1512作为支撑部151e。具体的,可以在弧臂1512的端部设置凸台151f。也就是,通过随第一摆臂151同步转动的凸台151f与中间门板11抵接,以驱动中间门板11远离主体14移动。
在一些可能的设计中,可以采用第一摆臂151和第二摆臂152中的一个摆臂作为驱动结构。在另外一些可能的设计中,为了提升中间门板11移动的平衡性,可以采用第一摆臂151和第二摆臂152共同驱动中间门板11移动。第二摆臂152带动中间门板11移动的过程以及结构设计与上述第一摆臂151类似,因此不再赘述。
当利用转动的第一摆臂151和第二摆臂152作为驱动结构时,电子设备由闭合状态向展平状态的后段,第一摆臂151和第二摆臂152与中间门板11抵接,以推动中间门板11朝远离主体14移动;相反,电子设备由展平状态向闭合状态切换的前段,第一摆臂151和第二摆臂152与中间门板11抵接,随着第一摆臂151和第二摆臂152的继续转动,与中间门板11不抵接,对中间门板11的推力撤销,中间门板11就会在可伸缩的牵拉件23的作用下朝主体14方向移动。
利用转动的第一门板12带动中间门板11远离主体14移动时,第一门板12的朝向主体14的一侧形成有支撑部。也可以说,第一门板12的B2面朝向主体14的一侧 形成有支撑部。电子设备在由闭合状态至展平状态运动的过程中,第一门板12相对主体14转动时,第一门板12的支撑部会与中间门板11的靠近主体14的一侧抵接,推动中间门板11朝远离主体14方向移动。
在一种可能的设计中,如图27,图27示出了第一门板12带动中间门板11朝远离主体14方向移动的结构示意图。在该实施例中,可以在第一门板12的开设有第一门板滑槽12b的延伸部121的端部形成朝中间门板11凸出的凸台12c。也就是,通过随第一门板12同步转动的凸台12c与中间门板11抵接,以驱动中间门板11远离主体14移动。在另外一种可能的设计中,可以在第一门板12的靠近主体14的一侧单独设置支撑部,该支撑部与具有第一门板滑槽的延伸部为彼此独立的两个结构。
和采用第一摆臂151和第二摆臂152作为驱动结构类似。在一些可能的设计中,可以采用第一门板12和第二门板13中的一个门板作为驱动结构。在另外一些可能的设计中,为了提升中间门板11移动的平衡性,可以采用第一门板12和第二门板13共同驱动中间门板11移动。第二门板13带动中间门板11移动的过程以及结构设计与上述第一门板12类似,在此不再赘述。
当利用转动的第一门板12和第二门板13作为驱动结构时,电子设备由闭合状态向展平状态的后段,第一门板12和第二门板13与中间门板11抵接,以推动中间门板11朝远离主体14移动;相反,电子设备由展平状态向闭合状态切换的前段,第一门板12和第二门板13与中间门板11抵接,随着第一门板12和第二门板13的继续转动,与中间门板11不抵接,对中间门板11的推力撤销,中间门板11就会在可伸缩的牵拉件的作用下朝主体14方向移动。
在一些情况下,若仅采用第一摇臂151和第二摇臂152推动中间门板11远离主体14移动,当电子设备由展平状态向闭合状态切换的初始阶段时,由于第一摇臂151和第二摇臂152转动速度是比较慢的,中间门板11不能快速的朝主体14移动,这样会出现柔性屏4000朝远离中间门板11方向拱起的现象。
在另一些情况下,若仅采用第一门板12和第二门板13推动中间门板11远离主体14移动,电子设备由展平状态朝闭合状态运动过程中,随着第一门板12和第二门板13的转动,第一门板12和第二门板13由抵接变换为不抵接后,中间门板11会在牵拉件的牵拉下快速的朝主体14移动,这样,会造成柔性屏4000靠近中间门板11的部分缺少支撑而应力较大,可能造成柔性屏4000损伤的现象。
为了杜绝柔性屏4000拱起或者减小柔性屏4000的拱起程度,以及防止柔性屏4000应力较大的现象,本申请实施例可以将第一摆臂151和第二摆臂152作为促使中间门板11远离主体14移动的驱动结构,同时也将第一门板12和第二门板13也作为促使中间门板11远离主体14移动的驱动结构。并且,在电子设备由闭合状态向展平状态切换的过程中,第一门板12和第二门板13对中间门板11的推动,滞后于第一摆臂151和第二摆臂152对中间门板11的推动。
具体的,电子设备由展平状态朝闭合状态运动的前阶段,由第一门板12和第二门板13对中间门板11进行支撑。因为在第一门板12和第二门板13相对主体14的转动速度是比较快的,这样的话,随着第一门板12和第二门板13的快速转动,促使中间门板11也快速朝主体14移动,为柔性屏4000避让出空间,避免靠近中间门板11的 部分出现拱起现象。如此设计,当电子设备由闭合状态朝展平状态运动的后阶段,即柔性屏4000接近展平时,快速转动的第一门板12和第二门板13推动中间门板11快速的与第一门板12以及第二门板13共面,以支撑柔性屏4000。
电子设备由展平状态朝闭合状态运动过程中,当第一门板12和第二门板13对中间门板11的支撑撤销后,通过转动的第一摆臂151和第二摆臂152再对中间门板11进行支撑。原因是第一摆臂151和第二摆臂152的旋转速度均小于第一门板12和第二门板13的旋转速度。当第一门板12和第二门板13对中间门板11的支撑撤销后,采用转动速度较慢的第一摆臂151和第二摆臂152对中间门板11进行支撑,可以降低中间门板11的移动速度,避免撤力过快造成柔性屏4000出现应力集中的现象。
综合上述描述,本申请实施例提供的电子设备由展平状态朝闭合状态运动过程中,中间门板11具有三个运动阶段,在第一阶段,第一门板12和第二门板13相向转动,第一摆臂151和第二摆臂152相向转动,与中间门板11抵接的第一门板12和第二门板13的支撑部逐渐与中间门板11分离,促使中间门板11以V1速度靠近主体14移动;在第二阶段,随着第一门板12和第二门板13,以及第一摆臂151和第二摆臂152的继续转动,第一门板12和第二门板13的支撑部与中间门板11分离,第一摆臂151和第二摆臂152的支撑部与中间门板11抵接,控制中间门板11以小于V1的V2速度继续靠近主体14;在第三阶段,随着第一门板12和第二门板13,以及第一摆臂151和第二摆臂152的继续转动,第一摆臂151和第二摆臂152的支撑部也与中间门板11分离,中间门板11在牵拉件的拉力作用下继续靠近主体14运动,最终第一门板12、第二门板13和中间门板11形成类似三角形的容纳腔,且柔性屏4000被包容在该容纳腔内。
相应的,本申请实施例提供的电子设备由闭合状态朝展平状态运动过程中,中间门板11也具有三个运动阶段,在第一阶段,第一门板12和第二门板13相背离转动,第一摆臂151和第二摆臂152相背离转动,中间门板11在牵拉件的牵拉下,静止不动;在第二阶段,随着第一门板12和第二门板13,以及第一摆臂151和第二摆臂152的继续转动,第一摆臂151和第二摆臂152的支撑部与中间门板11抵接,破坏牵拉件对中间门板11的拉力,推动中间门板11以V3速度朝远离主体14的方向移动;在第三阶段,第一摆臂151和第二摆臂152与中间门板11分离,第一门板12和第二门板13的支撑部与中间门板11抵接,推动中间门板11以大于V3的V4速度继续朝远离主体14的方向移动,直至第一门板12、中间门板11和第二门板13共面。
上述给出了采用第一摆臂151和第二摆臂152,以及第一门板12和第二门板13共同作为推动中间门板11移动的驱动结构。在另外一些方式中,可以采用第一摆臂151和第二摆臂152中的一个摆臂,以及采用第一门板12和第二门板13中的一个门板共同作为推动中间门板11移动的驱动结构。但是为了使得中间门板11稳定平衡的移动,可以利用第一摆臂151和第二摆臂152,以及第一门板12和第二门板13共同作为推动中间门板11移动的驱动结构。
在本申请给出的转轴机构1000中,包括可伸缩的牵拉件时,在电子设备由闭合状态向展平状态运动中,第一摆臂151和第二摆臂152均与中间门板11抵接后,首先要破坏牵拉件对中间门板11的牵拉力,才会带动中间门板11背离主体14移动。那么, 可伸缩的牵拉件对中间门板11的弹力不能太大,比如,第一摆臂151和第二摆臂152带动中间门板11移动时的推力为f时,可伸缩的牵拉件对中间门板11的弹力需要小于f。这样,中间门板11才会在第一摆臂151和第二摆臂152的推动下,远离主体14移动。
在一些情况下,由于第一门板12、第二门板13、第一摆臂151或者第二摆臂152对中间门板11的作用力不会始终垂直于中间门板11,容易使中间门板11的移动方向不稳定。比如,参照图28,图28简单示出了第一摆臂151转动至与中间门板11抵接,并处于某一位置时的位置关系示意图,在该位置时,旋转的第一摆臂151对中间门板11的作用力可能为F,该作用力F可以分解为竖直的F1和水平的F2,那么,转动的第一摆臂151在带动中间门板11运动时,可能很难保障中间门板11沿垂直于中间门板11的P4方向直线运动。
基于这种可能的情况,该转轴机构1000还包括用于导向中间门板11沿与中间门板11长度方向垂直的方向移动的导向结构。这里,中间门板11的长度方向,与第一摆臂151和主体14转动连接的轴线方向平行。中间门板11沿与中间门板11长度方向垂直的方向移动,也即中间门板11在抬起和下沉的过程中,沿一条直线上下运动,以保证运动的稳定性。
导向结构具有多种可实现的结构。在一些可选择的实施方式中,如图29,图29为用于体现中间门板11、主体14和导向结构的连接关系,且图29为爆炸图。其中,导向结构包括设置在中间门板11上的导向块22,导向块22和中间门板11可以为两个彼此独立的结构,比如,如图29所示,导向块22和中间门板11可以通过连接件25固定连接。或者,在另一可能的设计中,导向块22和中间门板11呈一体结构。导向结构还包括开设在主体14内的导向孔24,导向孔24的延伸方向与中间门板11相垂直,这样,滑动在导向孔24内的导向块22才会带动中间门板11沿垂直其的方向远离主体14,或者靠近主体14。
图30为转轴机构的剖面图,用于体现中间门板11、主体14和牵拉件23的连接关系。一并结合图29和图30,当转轴机构包括可伸缩的牵拉件23、导向块22和导向孔24时,可以使得导向孔24的靠近中间门板11的开口处具有遮挡部141。这样的话,导向孔24的开口处的径向尺寸小于导向孔24内的径向尺寸,牵拉件23被隐藏在导向孔24内。在一种可能的设计中,如图29,可以在导向块24内开设未贯通至导向块24底部的盲孔26,牵拉件23的一端与遮挡部141固定连接,另一端抵接在盲孔26的底面。
为了实现电子设备在折叠、展开过程中,第一壳体2000和第二壳体3000能够相对转轴机构1000同步动作,在本申请提供的一个实施例中,转轴机构1000中还可以包括同步结构,以实现第一壳体2000和第二壳体3000之间的同步相向转动和同步背离转动。
同步结构的结构形式可以是多样的。例如,如图31所示,图31示出了可实现的一种同步结构。其中,同步结构可以包括齿轮传动结构,第一摆臂151通过齿轮传动结构与第二摆臂152连接。也就是,当第一摆臂151相对主体14转动时,通过齿轮传动结构带动第二摆臂152同步反向转动,进而,与第一摆臂151固定连接的第一壳体 2000,和与第二摆臂152固定连接的第二壳体3000可以同步反向转动。
如图31,齿轮传动结构可以包括第一齿轮连杆171和第二齿轮连杆172,第一齿轮连杆171的一端与第一摆臂151滑动连接,第一齿轮连杆171的另一端具有第一啮合齿1711,第二齿轮连杆172的一端与第二摆臂152滑动连接,第二齿轮连杆172的另一端具有第二啮合齿1721。在一种可实现的设计中,齿轮传动结构还包括偶数个从动齿轮,比如,可以包括两个、四个或者六个从动齿轮,在图31中,示例性的给出了包括两个从动齿轮,该两个从动齿轮分别为第一从动齿轮173和第二从动齿轮174,其中,第一从动齿轮173和第二从动齿轮174外啮合,第一从动齿轮173还与第一齿轮连杆171上的第一啮合齿1711外啮合,第二从动齿轮174与第二齿轮连杆172上的第二啮合齿1721外啮合。在另外一种可实现的设计中,第一啮合齿1711直接与第二啮合齿1721外啮合,也就是,当第一齿轮连杆171转动时,会直接带动第二齿轮连杆172反向运动,以使得第一摆臂151和第二摆臂152反向运动,实现第一壳体和第二壳体相互的聚拢或者相互分离。
在图31所示的同步结构中,第一齿轮连杆171、第一从动齿轮173、第二从动齿轮174和第二齿轮连杆172的旋转轴线均需要与第一摆臂151在主体14上的旋转轴线,和第二摆臂152在主体14上的旋转轴线的旋转轴线相平行。
为了实现第一齿轮连杆171与第一摆臂151的滑动连接,如图32,图32用于体现第一齿轮连杆171和第一摆臂151的滑动连接关系,以及用于体现第二齿轮连杆172和第二摆臂152的滑动连接关系。其中,第一齿轮连杆171和第一摆臂151通过销轴19连接,销轴19与第一齿轮连杆171固定。并且,第一摆臂151上开设有供销轴19滑动的第一轨迹槽151d,通过销轴19与第一轨迹槽151d的滑动配合,实现第一齿轮连杆171与第一摆臂151之间的滑动连接。
同理的,为了实现第二齿轮连杆172与第二摆臂152的滑动连接,如图32,第二齿轮连杆172和第二摆臂151通过销轴19连接,销轴19与第二齿轮连杆172固定。第二摆臂152上开设有供销轴19滑动的第二轨迹槽152d,实现第二齿轮连杆172与第二摆臂152之间的滑动连接。
下面结合图31对该同步结构的工作过程进行介绍,若第一摆臂151沿图31所示的顺时针方向转动时,通过销轴191和第一轨迹槽151d的滑动配合关系,带动第一齿轮连杆171顺时针转动,转动的第一齿轮连杆171带动第一从动齿轮173逆时针转动,第一从动齿轮173驱动与之外啮合的第二从动齿轮174顺时针转动,第二从动齿轮174再带动第二齿轮连杆172逆时针转动,驱动第二摆臂152逆时针转动,最终实现第一摆臂151和第二摆臂152的同步相向转动,实现柔性屏的折叠。
相反的,若第一摆臂151沿图31所示的逆时针方向转动时,带动第一齿轮连杆171逆时针转动,转动的第一齿轮连杆171带动第一从动齿轮173顺时针转动,第一从动齿轮173驱动与之外啮合的第二从动齿轮174逆时针转动,第二从动齿轮174再带动第二齿轮连杆172顺时针转动,驱动第二摆臂152顺时针转动,最终实现第一摆臂151和第二摆臂152的同步背向转动,实现柔性屏的展平。
在一些实施方式中,当第一摆臂151具有至少两个时,相对应的,同步结构需要至少两组,多组同步结构与多个第一摆臂151是一对一的连接。比如,在图33中,示 出了两组同步结构,分别为第一同步结构201和第二同步结构202,,第一同步结构201与两个第一摆臂中的一个连接,第二同步结构202与两个第一摆臂中的另一个连接。
若同步结构具有多组时,如图33,每一个同步结构均包括齿轮传动结构时,第一同步结构中的第一齿轮连杆171和第二同步结构中的第一齿轮连杆171通过第一连接轴175同轴设置。同样的,第一同步结构中的第二齿轮连杆172和第二同步结构中的第二齿轮连杆172通过第二连接轴176同轴设置,第一同步结构中的第一从动齿轮173和第二同步结构中的第一从动齿轮173通过第三连接轴177同轴设置,第一同步结构中的第二从动齿轮174和第二同步结构中的第二从动齿轮174通过第四连接轴178同轴设置。这样的话,当两个第一摆臂151同步转动时,会带动两个第二摆臂152同步反向转动。
参照图2和上述各实施例提供的转轴机构1000,柔性屏4000连续的覆盖于可折叠的电子设备的第一壳体2000、转轴机构1000以及第二壳体3000的第二表面3001上。其中,区域A与第一壳体2000的第一表面2001对应,其可固定连接于第一壳体2000的第一表面2001,区域E与第二壳体3000的第二表面3001对应,其可固定连接于第二壳体3000的第二表面3001。区域B固定连接于转轴机构的第一门板12上,区域D固定连接于转轴机构的第二门板13上,区域C与中间门板11相对,且区域C能够相对中间门板11移动。
本申请给出的转轴机构1000中,还包括端盖21,上述主体14固定在端盖21上,如图2所示,当第一壳体2000和第二壳体3000展开后,第一壳体2000的端面靠近第二壳体3000的端面,包含有端盖21的转轴机构1000被隐藏在第一壳体2000和第二壳体3000内,也就是说,从电子设备的外观是无法看到转轴机构1000,这样会提升该移动终端的外形美观度。如图4,当第一壳体2000和第二壳体3000折叠处于闭合状态时,转轴机构1000的端盖21露出,弥补了第一壳体2000和第二壳体3000之间的缝隙,这样也保障了电子设备的外形美观度。即不论电子设备处于闭合状态,还是处于展平状态,内部结构均是被隐藏的,整个结构的外形完整,美观度较好。
在本说明书的描述中,具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何熟悉本技术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 (18)

  1. 一种转轴机构,其特征在于,包括:
    主体;
    第一门板、第二门板和中间门板,所述第一门板、所述第二门板和所述中间门板位于所述主体的同一侧,且所述第一门板和所述第二门板相对设置在所述中间门板的两侧;
    第一摆臂和第二摆臂,所述第一摆臂和所述第二摆臂相对设置在所述主体的两侧;
    所述第一摆臂靠近所述主体的一端与所述主体转动连接,所述第一门板的一端与所述第一摆臂远离所述主体的一端转动连接,另一端与所述主体滑动连接;
    所述第二摆臂靠近所述主体的一端与所述主体转动连接,所述第二门板的一端与所述第二摆臂远离所述主体的一端转动连接,另一端与所述主体滑动连接;
    所述第一门板、所述第二门板、所述第一摆臂和所述第二摆臂中的至少一个设有支撑部;
    所述第一摆臂和所述第二摆臂相向转动时,所述第一摆臂带动所述第一门板的靠近所述主体的一端沿远离所述主体的方向运动,所述第二摆臂带动所述第二门板的靠近所述主体的一端沿远离所述主体的方向运动,以使所述支撑部与所述中间门板分离,所述中间门板朝靠近所述主体的方向移动;
    所述第一摆臂和所述第二摆臂相背离转动时,所述第一摆臂带动所述第一门板的靠近所述主体的一端沿靠近所述主体的方向运动,所述第二摆臂带动所述第二门板的靠近所述主体的一端沿靠近所述主体的方向运动,以使所述支撑部与所述中间门板抵接,带动所述中间门板朝远离所述主体的方向移动。
  2. 根据权利要求1所述的转轴机构,其特征在于,所述第一摆臂和所述第二摆臂相向转动,带动所述第一门板和所述第二门板相向转动至第一位置时,所述第一门板、所述中间门板和所述第二门板围城容屏空间。
  3. 根据权利要求1或2所述的转轴机构,其特征在于,所述第一摆臂和所述第二摆臂相背离转动,带动所述第一门板和所述第二门板相背离转动至第二位置时,所述第一门板、所述中间门板和所述第二门板处于同一平面以形成支撑面。
  4. 根据权利要求1-3中任一项所述的转轴机构,其特征在于,所述第一门板、所述第二门板、所述第一摆臂和所述第二摆臂上均设有所述支撑部。
  5. 根据权利要求4所述的转轴机构,其特征在于,所述第一摆臂和所述第二摆臂相向运动过程中,包括依次出现的第一阶段、第二阶段和第三阶段;
    在所述第一阶段,所述第一门板的所述支撑部和所述第二门板的所述支撑部均与所述中间门板抵接,所述第一摆臂的所述支撑部和所述第二摆臂的所述支撑部均与所述中间门板分离;
    在所述第二阶段,所述第一摆臂的所述支撑部和所述第二摆臂的所述支撑部均与所述中间门板抵接;
    在所述第三阶段,所述第一门板的所述支撑部、所述第二门板的所述支撑部、所述第一摆臂的所述支撑部和所述第二摆臂的所述支撑部均与所述中间门板分离。
  6. 根据权利要求1-5中任一项所述的转轴机构,其特征在于,所述转轴机构还包 括:
    可伸缩的牵拉件,所述牵拉件的一端与所述主体固定,另一端与所述中间门板固定,所述牵拉件用于带动所述中间门板朝靠近所述主体的方向移动。
  7. 根据权利要求6所述的转轴机构,其特征在于,所述转轴机构还包括:
    导向结构,所述导向结构用于引导所述中间门板相对所述主体沿与所述中间门板的长度方向相垂直的方向移动。
  8. 根据权利要求7所述的转轴机构,其特征在于,所述导向结构包括:
    开设在所述主体内的导向孔和滑动设置在所述导向孔内的导向块;
    所述导向孔沿与所述中间门板的长度方向相垂直的方向延伸;
    所述导向块与所述中间门板固定。
  9. 根据权利要求8所述的转轴机构,其特征在于,所述导向孔的靠近所述中间门板的开口处具有遮挡部,所述牵拉件设置在所述导向孔内,所述导向块具有从靠近所述中间门板的表面朝所述导向孔底面方向开设的盲孔,所述牵拉件的一端与所述遮挡部固定,另一端抵接在所述盲孔的底面。
  10. 根据权利要求1-9中任一项所述的转轴机构,其特征在于,所述第一门板和所述第二门板相对所述主体的侧面均具有延伸部,所述延伸部朝所述中间门板的相对所述主体的一面延伸,所述延伸部具有朝所述中间门板凸出的第一凸台,以形成所述第一门板的所述支撑部和所述第二门板的所述支撑部。
  11. 根据权利要求10所述的转轴机构,其特征在于,所述第一门板的所述延伸部和所述第二门板的所述延伸部上均开设有门板滑槽,所述门板滑槽内设置有滑动轴,所述滑动轴与所述主体固定连接,所述滑动轴相对所述门板滑槽滑动,实现所述第一门板和所述第二门板与所述主体的滑动连接。
  12. 根据权利要求1-11中任一项所述的转轴机构,其特征在于,所述第一摆臂和所述第二摆臂靠近所述主体的端部具有朝所述中间门板的相对所述主体的一面凸出的第二凸台,以形成所述第一摆臂的所述支撑部和所述第二摆臂的所述支撑部。
  13. 根据权利要求12所述的转轴机构,其特征在于,所述主体上设置有第一弧形凸块和第二弧形凸块;
    所述第一摆臂的靠近所述主体的一端形成有呈弧形结构的第一弧臂,所述第一弧臂上开设有用于装配所述第一弧形凸块的第一弧形卡槽;所述第一弧形凸块相对所述第一弧形卡槽滑动,实现所述第一摆臂和所述主体的转动连接;
    所述第二摆臂的靠近所述主体的一端形成有呈弧形结构的第二弧臂,所述第二弧臂上开设有用于装配所述第二弧形凸块的第二弧形卡槽;所述第二弧形凸块相对所述第二弧形卡槽滑动,实现所述第二摆臂和所述主体的转动连接;
    所述第一弧臂和所述第二弧臂上设置所述第二凸台。
  14. 根据权利要求1-13中任一项所述的转轴机构,其特征在于,所述第一门板的相对所述主体的一面具有朝所述第一摆臂延伸的第一门板弧形凸块,所述第一摆臂上开设有用于装配所述第一门板弧形凸块的第三弧形卡槽,所述第一门板弧形凸块相对所述第三弧形卡槽滑动,实现所述第一门板和所述第一摆臂的转动连接;
    所述第二门板的相对所述主体的一面具有朝所述第二摆臂延伸的第二门板弧形凸 块,所述第二摆臂上开设有用于装配所述第二门板弧形凸块的第四弧形卡槽,所述第二门板弧形凸块相对所述第四弧形卡槽滑动,实现所述第二门板和所述第二摆臂的转动连接。
  15. 根据权利要求1-14中任一项所述的转轴机构,其特征在于,所述转轴机构还包括:
    同步结构,所述同步结构分别与所述第一摆臂和所述第二摆臂滑动连接,所述同步结构用于实现所述第一摆臂和所述第二摆臂的同步反向转动。
  16. 根据权利要求15所述的转轴机构,其特征在于,所述同步结构包括:
    第一齿轮连杆,所述第一齿轮连杆的一端与所述第一摆臂的远离所述主体的一端滑动连接,所述第一齿轮连杆的另一端形成第一啮合齿;
    第一从动齿轮,与所述第一啮合齿外啮合;
    第二从动齿轮,与所述第一从动齿轮外啮合;
    第二齿轮连杆,所述第二齿轮连杆的一端与所述第二摆臂的远离所述主体的一端滑动连接,所述第二齿轮连杆的另一端形成第二啮合齿,所述第二从动齿轮与所述第二啮合齿外啮合。
  17. 一种电子设备,其特征在于,包括:
    第一壳体、第二壳体、柔性屏和如权利要求1~16任一项所述的转轴机构;
    其中,所述第一壳体与所述第一摆臂固定连接,所述第二壳体与所述第二摆臂固定连接;
    所述第一壳体包括第一表面,所述第二壳体包括第二表面,所述柔性屏连续覆盖于所述第一壳体的第一表面、所述转轴机构以及所述第二壳体的第二表面,且所述柔性屏分别与所述第一壳体的第一表面和所述第二壳体的第二表面固定连接。
  18. 如权利要求17所述的电子设备,其特征在于,所述柔性屏由连续设置的第一区域、第二区域、第三区域、第四区域和第五区域组成;
    所述第一区域与所述第一壳体的第一表面固定连接;所述第二区域与所述第一门板的朝向所述柔性屏的表面固定连接;所述第三区域与所述中间门板相对设置,且所述第三区域能够相对所述中间门板移动;所述第四区域与所述第二门板的朝向所述柔性屏的表面固定连接;所述第五区域与所述第二壳体的第二表面固定连接。
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