WO2022152135A9 - 折叠组件及可折叠电子设备 - Google Patents

折叠组件及可折叠电子设备 Download PDF

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Publication number
WO2022152135A9
WO2022152135A9 PCT/CN2022/071460 CN2022071460W WO2022152135A9 WO 2022152135 A9 WO2022152135 A9 WO 2022152135A9 CN 2022071460 W CN2022071460 W CN 2022071460W WO 2022152135 A9 WO2022152135 A9 WO 2022152135A9
Authority
WO
WIPO (PCT)
Prior art keywords
swing arm
housing
folding assembly
door panel
gear
Prior art date
Application number
PCT/CN2022/071460
Other languages
English (en)
French (fr)
Other versions
WO2022152135A1 (zh
Inventor
张垚磊
谭正平
高明谦
汪源
李海飞
周国统
袁雷波
严斌
赵奎兵
Original Assignee
荣耀终端有限公司
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 荣耀终端有限公司 filed Critical 荣耀终端有限公司
Priority to US18/268,038 priority Critical patent/US20240073303A1/en
Priority to EP22739014.3A priority patent/EP4246944A4/en
Publication of WO2022152135A1 publication Critical patent/WO2022152135A1/zh
Publication of WO2022152135A9 publication Critical patent/WO2022152135A9/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
    • G06F1/1652—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being flexible, e.g. mimicking a sheet of paper, or rollable
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
    • G06F1/1681—Details related solely to hinges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel

Definitions

  • the present application relates to a folding component and a foldable electronic device including the folding component.
  • the foldable function of the electronic device is generally realized through a folding component.
  • the structural design of the foldable component and the layout between the structures directly affect the folded size of the foldable electronic device, as well as the mechanical stability and reliability of the foldable component.
  • Embodiments of the present application provide a foldable component and a foldable electronic device, which can solve the problems that the foldable component is large in size and poor in stability when the foldable component is in a folded state.
  • a folding assembly is provided.
  • the folding component is applied to a foldable electronic device and is used for carrying a flexible display screen.
  • the folding assembly includes: a shaft seat, a first shell and a second shell. Wherein, the first housing and the second housing are respectively arranged on two sides of the shaft seat.
  • the top of the shaft seat is located on both sides of the center line of the shaft seat, and door panel swing arms are provided, and one end of each door panel swing arm is rotatably connected to the shaft seat, and the other end of each door panel swing arm is connected to the first housing or the second housing.
  • the housing is connected in rotation.
  • the folding assembly combines the door panel structure and the swing arm structure into one to form a door panel swing arm, so that when the flexible display is The seat and the first shell or the second shell on both sides of the shaft seat can cooperate to move, and the motion matching mechanism is simple, so that the stability and reliability of the folding assembly are greatly improved; and the door panel structure and the swing arm structure After the two are combined into one, the space utilization rate of the folding component can be improved, thereby reducing the folded size of the folding component and improving user experience.
  • first slide grooves are provided on both sides of the centerline of the axle seat on the axle seat, and the swing arms of the door panels on both sides of the axle seat are respectively provided with the first slide grooves on both sides of the center line of the axle seat.
  • the first slide rail is provided, and when the swing arm of the door panel is rotated based on the shaft seat, the first slide rail slides along the first slide groove. In this way, when the swing arms of the two door panels rotate until the angle between the swing arms of the two door panels is 180 degrees, the upper surface of the shaft seat can fit the lower surface of the swing arms of the door panels, forming a stable blocking effect, so that the two door panels can swing The angle between the arms is maintained at 180 degrees.
  • the first chute is in the shape of an arc-shaped groove
  • the two side walls of the first chute are provided with a first arc-shaped boss
  • the two sides of the first slide rail are provided with The first arc-shaped groove
  • the first arc-shaped boss slides along the first arc-shaped groove.
  • the first arc-shaped boss and the first arc-shaped groove can restrict the first slide rail to slide stably in the first slide groove, avoiding the first slide on the swing arm of the door panel.
  • the slide rail slides out from the first chute during the sliding process, thereby improving the structural stability and reliability of the folding assembly.
  • both the first shell and the second shell are wedge-shaped, and when the folding assembly changes from the unfolded state to the folded state, the wedge-shaped surface of the first shell faces the The swing arm of the door panel is close until it fits; the wedge-shaped surface of the second housing approaches the swing arm of the door panel connected with the second housing until it fits.
  • the swing arms of the two door panels can form a drop-shaped or other required shape, that is, the folded flexible display can form a drop-shaped screen after folding, which improves the folding life.
  • the first casing and the second casing can effectively support the swing arm of the door panel, thereby improving the structural stability of the folding assembly.
  • both the first housing and the second housing are provided with a second slide slot
  • each door panel swing arm is provided with a second slide rail adapted to the second slide slot.
  • the door panel swing arm is based on the shaft
  • the second slide rail slides along the second slide groove.
  • the second chute is in the shape of an arc-shaped groove, and the two sides of the second chute are provided with a second arc-shaped boss, and the two sides of the second slide rail are provided with The second arc-shaped groove is provided, and when the second slide rail slides along the second slide groove, the second arc-shaped boss slides along the second arc-shaped groove.
  • the second arc-shaped boss and the second arc-shaped groove can restrict the second slide rail to slide stably in the second slide groove, The second sliding rail on the swing arm of the door panel is prevented from slipping out of the second sliding groove during sliding, thereby improving the structural stability and reliability of the folding assembly.
  • the folding assembly further includes a synchronization mechanism located between the first casing and the second casing; the first swing arm and the second swing arm are respectively connected to both sides of the synchronization mechanism.
  • Both the first casing and the second casing are provided with a third slide groove, the first swing arm matches the third slide groove on the first casing, and the second swing arm matches the third slide groove on the second casing.
  • the synchronization mechanism includes a first gear shaft and a second gear shaft arranged symmetrically, the first swing arm is fixedly connected to the first gear shaft, and the second swing arm is fixedly connected to the second gear shaft.
  • the first gear shaft is provided with a first gear
  • the second gear shaft is provided with a second gear; the first gear and the second gear are meshed through synchronous gear combination.
  • the first housing can drive the first swing arm to rotate.
  • the first swing arm rotates with the first gear as the fulcrum and the center of the circle.
  • the synchronous gear combination drives the second gear to move.
  • the second gear drives the second gear shaft to rotate, thereby driving
  • the second swing arm rotates to realize synchronous inward folding of the first casing and the second casing.
  • the synchronous gear combination includes a first synchronous gear and a second synchronous gear meshed with each other; the first synchronous gear meshes with the first gear; the second synchronous gear meshes with the second gear.
  • the first gear can drive the first synchronous gear to move
  • the first synchronous gear can drive the second synchronous gear to move
  • the second synchronous gear can drive the second gear to move, so as to realize the synchronous orientation of the first housing and the second housing. Fold inside.
  • both the first swing arm and the second swing arm are respectively fixedly connected to the first gear shaft and the second gear shaft through two spaced connection rings.
  • a damping spring and a damping cam are sheathed on the first gear shaft between the two spaced connecting rings and on the second gear shaft between the two spaced connecting rings.
  • the damping spring generates friction by squeezing the damping cam to form a motion damping effect, thereby improving the structural stability and reliability of the folding assembly during the rotation and folding process.
  • a foldable electronic device in a second aspect, includes a flexible display screen and any possible folding assembly as described in the above first aspect. Wherein, the flexible display screen is attached to the upper surface of the folding assembly.
  • any of the foldable electronic devices provided above can be realized by the corresponding folding assembly provided above, or associated with the corresponding folding assembly provided above, therefore, it can achieve For the beneficial effects, reference can be made to the beneficial effects in the folding assembly provided above, and details will not be repeated here.
  • FIG. 1 is a schematic structural view of a foldable electronic device in an unfolded state
  • FIG. 2 is a schematic structural diagram of a foldable electronic device in a folded state
  • Fig. 3 is a structural schematic diagram of a folding assembly in an unfolded state
  • Fig. 4 is a structural schematic diagram of a folding assembly in a folded state
  • Fig. 5 is a schematic diagram of the overall structure of a folding assembly provided by the embodiment of the present application.
  • Fig. 6 is a schematic structural diagram of a folding assembly provided in an embodiment of the present application in an unfolded state
  • Fig. 7 is a schematic structural view of the shaft seat shown in Fig. 6;
  • Fig. 8 is a structural schematic diagram of the swing arm of the door panel shown in Fig. 6;
  • Fig. 9 is a schematic diagram of the connection structure between the shaft seat shown in Fig. 7 and the door panel swing arm shown in Fig. 8;
  • Fig. 10 is a schematic diagram of the connection structure shown in Fig. 9 during the rotating assembly process
  • Fig. 11 is a schematic diagram of the connection structure shown in Fig. 9 when it is rotated and assembled in place;
  • Fig. 12 is a schematic structural view of the second housing shown in Fig. 6;
  • Fig. 13 is a first schematic diagram of the connection structure between the second housing shown in Fig. 12 and the swing arm of the door panel shown in Fig. 8;
  • Fig. 14 is a second schematic diagram of the connection structure between the second housing shown in Fig. 12 and the swing arm of the door panel shown in Fig. 8;
  • Fig. 15 is a schematic perspective view of the three-dimensional structure of the folding assembly shown in Fig. 6;
  • Fig. 16 is a schematic diagram of the exploded structure of the folding assembly shown in Fig. 6;
  • Fig. 17 is a schematic structural view of the folding assembly shown in Fig. 6 when it is folded inward by 30°;
  • Fig. 18 is a schematic structural view of the folding assembly shown in Fig. 6 when it is in a fully folded state;
  • Fig. 19 is a schematic top view of a connection structure between a folding assembly and a synchronization mechanism provided in an embodiment of the present application;
  • Fig. 20 is a schematic side view of a connection structure between a folding assembly and a synchronization mechanism provided in an embodiment of the present application;
  • Fig. 21 is a schematic top view of a folding assembly provided by an embodiment of the present application after adding a synchronization mechanism
  • Fig. 22 is a three-dimensional schematic diagram of a folding assembly provided by an embodiment of the present application after adding a synchronization mechanism
  • FIG. 23 is a schematic diagram of an exploded structure of the folding assembly shown in FIG. 22 after adding a synchronization mechanism.
  • first”, second, etc. are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features.
  • a feature defined as “first”, “second”, etc. may expressly or implicitly include one or more of that feature.
  • plural means two or more.
  • a foldable electronic device is an electronic device that can fold a flexible display screen of the electronic device, and the foldable function of the electronic device can be realized through a built-in folding component in the electronic device.
  • the foldable electronic device may be a product with a display interface such as a mobile phone, a display, a tablet computer, and a vehicle-mounted computer.
  • the embodiment of the present application does not specifically limit the specific form of the above-mentioned foldable electronic device.
  • a foldable electronic device 01 includes a flexible display 10 .
  • the flexible display 10 is, for example, an active matrix organic light emitting diode (AMOLED) display.
  • AMOLED active matrix organic light emitting diode
  • the AMOLED display does not require a backlight module (BLM). Therefore, when the base substrate in the AMOLED display screen is made of a flexible resin material, such as polyethylene terephthalate (PET), the above-mentioned AMOLED display screen can have a bendable characteristic.
  • BBM backlight module
  • the electronic device shown in FIG. 1 is a foldable electronic device designed to be folded inwardly, and in a folded state, the flexible display screen is located inside the device.
  • the above-mentioned foldable electronic device 01 further includes a folding assembly 20 for carrying a flexible display screen 10 , and the flexible display screen 10 is attached to the top of the folding assembly. surface.
  • the folding assembly 20 includes a first casing assembly 201 , a second casing assembly 202 and a rotating shaft assembly 203 located between the first casing assembly 201 and the second casing assembly 202 .
  • the first housing assembly 201 and the second housing assembly 202 may be the middle frame structure of the electronic device.
  • the first casing assembly 201 and the second casing assembly 202 can rotate along two sides of the rotating shaft assembly 203 , so as to drive the flexible display screen 10 to fold or unfold.
  • FIG. 1 when the included angle between the first casing component 201 and the second casing component 202 is 180 degrees, the flexible display screen 10 is in an unfolded state.
  • FIG. 2 when the first casing component 201 and the second casing component 202 are put together, the flexible display screen 10 is in a folded state.
  • the folding assembly 20 includes a hinge assembly 203 and an L-shaped middle frame structure disposed on both sides of the hinge assembly 203 .
  • the middle frame structures on both sides of the rotating shaft assembly 203 serve as the first casing assembly 201 and the second casing assembly 202 respectively.
  • a first swing arm structure 204 and a second swing arm structure 205 are respectively arranged, and the first swing arm structure 204 and the first housing assembly 201 , and between the second swing arm structure 205 and the second housing assembly 202 are locked by screws.
  • Two rotating shafts are symmetrically arranged on the rotating shaft assembly 203 , namely a first rotating shaft 2031 and a second rotating shaft 2032 .
  • the first swing arm structure 204 is rotatably connected to the first rotating shaft 2031 and rotates around the first rotating shaft 2031 .
  • the second swing arm structure 205 is rotatably connected to the second rotating shaft 2032 and rotates around the second rotating shaft 2032 .
  • the shaft assembly 203 is also provided with an inner door panel 206, and the two sides of the inner door panel 206 are respectively provided with a first outer door panel 207 and a second outer door panel 208, and the first outer door panel 207 and the second outer door panel 208 can be arranged along the first outer door panel 208 respectively.
  • the upper surfaces of the first swing arm structure 204 and the second swing arm structure 205 slide, and the inner door panel 206, the first outer door panel 207 and the second outer door panel 208 jointly form a door panel structure for carrying the flexible display screen in the foldable electronic device.
  • the first outer door panel 207 can be driven to rotate following the first swing arm structure 204, and the first outer door panel can be driven 207 slides along the upper surface of the first swing arm structure 204, so that the foldable electronic device using the folding assembly 20 is in an unfolded or folded state.
  • the door panel structure and the swing arm structure are independent structures, and in the process of unfolding or folding the folding assembly 20, the door panel structure and the swing arm structure need to be connected. Coordination, in the process of movement, there are many mechanisms for movement cooperation, and the dimensional chain is long, which makes the stability and reliability of the folding assembly 20 poor.
  • the split structure of the door panel structure and the swing arm makes the space occupied by the entire folding assembly 20 larger, and the overall thickness of the foldable electronic device is larger, thereby causing poor user experience.
  • the folded dimension A is relatively large, such as greater than 14.8 millimeters (mm).
  • the embodiment of the present application provides an improved folding assembly, such as the folding assembly 30 shown in FIG. 5 and FIG. 6 .
  • the folding assembly 30 is applied to the foldable electronic device 01 shown in FIG. 1 and FIG. 2 , and is used to carry the flexible display screen 10 .
  • the folding assembly 30 includes a shaft seat 301, a first casing 302 and a second casing 303, wherein the first casing 302 and the second casing 303 are respectively arranged on both sides of the shaft seat 301, and the top of the shaft seat 301 is located on the shaft
  • Both sides of the center line of the seat 301 are provided with door panel swing arms 304, and one end of each door panel swing arm 304 is rotatably connected with the shaft seat 301, and the other end of each door panel swing arm 304 is connected with the first housing 302 or the first housing 302
  • the two casings 303 are rotatably connected.
  • first housing 302 and the second housing 303 may be the middle frame structure of the foldable electronic device 01 .
  • the door panel swing arms 304 arranged on both sides of the center line of the shaft seat 301 can be arranged symmetrically along the center line of the shaft seat 301 , or can be arranged asymmetrically, such as being staggered along the center line of the shaft seat 301 .
  • the flexible display screen 10 is folded .
  • the swing arm 304 of the door panel rotates around the shaft seat 301 as a fulcrum.
  • the door panel swing arms 304 on both sides of the shaft base 301 will also form relative motion with the first housing 302 or the second housing 303 on both sides of the shaft base 301, so that the folding assembly 30 drives the folding assembly
  • the flexible display screen 10 above 30 is in an unfolded or folded state.
  • the door panel structure and the swing arm structure are combined into one to form the door panel swing arm 304, so that when the flexible display screen 10 is folded, the two door panel swing arms 304 above the shaft seat 301 It only needs to cooperate with the shaft seat 301 and the first shell 302 or the second shell 303 on both sides of the shaft seat 301.
  • the motion matching mechanism is simple, so that the stability and reliability of the folding assembly 30 are greatly improved. and combining the door panel structure and the swing arm structure into one can improve the space utilization rate of the folding assembly 30, thereby reducing the folded size of the folding assembly 30 and improving user experience.
  • the shaft seat 301 is located on both sides of the center line of the shaft seat (that is, at the position where it is rotatably connected with the swing arm 304 of the door panel), and a first sliding groove 3011 is provided.
  • the door panel swing arms 304 on both sides of the shaft seat are respectively provided with first slide rails 3041 adapted to the first slide grooves 3011 on both sides of the center line of the shaft seat (in order to reflect the structural characteristics of the door panel swing arms 304, Fig. 8
  • the first slide rail 3041 slides along the first slide groove 3011 .
  • the first slide groove 3011 can be an arc-shaped opening on the upper surface of the axle seat 301 Slot
  • the first slide rail 3041 can be provided on the lower surface of the door panel swing arm 304, an arc-shaped protrusion that matches the arc-shaped slot; or, the first slide slot 3011 can be formed from the upper
  • the surface is embedded in the arc-shaped groove inside the shaft seat 301
  • the first slide rail 3041 can be provided on the lower surface of the door panel swing arm 304 , and is an arc-shaped arm that matches the arc-shaped groove embedded in the shaft seat 301 .
  • the first sliding rail 3041 can be integrally formed with the swing arm 304 of the door panel.
  • the first chute 3011 is an arc-shaped groove provided on the upper surface of the shaft seat 301
  • a first arc-shaped boss 3012 is provided on the two side walls of the first chute 3011
  • the first slide rail The first arc-shaped groove 3042 adapted to the first arc-shaped boss 3012 is provided on the two side walls of 3041 .
  • the first arc-shaped boss 3012 can slide along the first arc-shaped groove 3042 .
  • the first arc-shaped boss 3012 and the first arc-shaped groove 3042 can restrict the first slide rail 3041 from sliding stably in the first slide groove 3011, preventing the door panel from The first sliding rail 3041 on the swing arm 304 slides out from the first sliding groove 3011 during the sliding process, thereby improving the structural stability and reliability of the folding assembly 30 .
  • Fig. 7, Fig. 8 and Fig. 9 only show a mode of rotational connection between the door panel swing arm 304 and the shaft seat 301, and the rotational connection between the door panel swing arm 304 and the shaft seat 301 can also be realized in other ways, such as The rotational connection is realized by means of a rotating shaft, and these all belong to the protection scope of the present application.
  • the first housing 302 and the second housing 303 can be arranged as a wedge-shaped structure as shown in FIG. 6 .
  • the wedge-shaped surface 3024 of the housing 302 is close to the corresponding door panel swing arm 304 (that is, the door panel swing arm 304 connected with the first housing 302 ) until it fits; the wedge-shaped surface 3024 of the second housing 303 swings towards the corresponding door panel.
  • the arm 304 (that is, the swing arm 304 of the door panel connected to the second housing 303 ) is close until it fits.
  • the relative movement formed by the rotational connection between the door panel swing arm 304 and the first housing 302 or the second housing 303 can complete the above-mentioned action of approaching until adhering.
  • a drop shape or other desired shape as shown in FIG. 18
  • the flexible display screen 10 can form a drop-shaped screen after being folded, which improves the folding life.
  • the first casing 302 and the second casing 303 can effectively support the swing arm 304 of the door panel, thereby improving the structural stability of the folding assembly 30 .
  • the first housing 302 and the second housing 303 are provided with a second sliding groove 3021, and each door panel swing arm 304 is provided with a second sliding rail 3043 adapted to the second sliding groove 3021, when the door panel swings
  • the arm 304 rotates based on the shaft seat 301 (rotates with the shaft seat 301 as a fulcrum)
  • the second slide rail 3043 slides along the second sliding groove 3021 .
  • the second chute 3021 can be an arc opened on the upper surface of the first housing 302 or the second housing 303 shaped groove
  • the second slide rail 3043 can be an arc-shaped protrusion that is arranged on the lower surface of the door panel swing arm 304 and fits the arc-shaped groove; or, the second slide groove 3021 can be formed from the first housing 302 Or the upper surface of the second housing 303 is embedded in the arc-shaped groove inside the shaft seat 301, and the second slide rail 3043 can be provided on the lower surface of the door panel swing arm 304, and embedded in the first housing 302 or the second housing
  • the arc-shaped arms are matched with the arc-shaped grooves inside the body 303.
  • the second sliding rail 3043 can be integrally formed with the swing arm 304 of the door panel.
  • the second chute 3021 is an arc-shaped groove opened on the upper surface of the first housing 302 or the second housing 303, a second arc-shaped protrusion is provided on the two side walls of the second chute 3021.
  • the platform 3022, and the second arc-shaped groove 3044 adapted to the second arc-shaped boss 3022 is provided on the two side walls of the second slide rail 3043.
  • the second arc-shaped boss 3022 can slide along the second arc-shaped groove 3044 .
  • the second circular arc-shaped boss 3022 and the second circular arc-shaped groove 3044 can limit the second slide rail 3043 in the second
  • the sliding in the sliding groove 3021 is stable, preventing the second sliding rail 3043 on the door panel swing arm 304 from sliding out of the second sliding groove 3021 during the sliding process, thereby improving the structural stability and reliability of the folding assembly 30 .
  • FIG. 12 , FIG. 13 and FIG. 14 only show a way in which the door panel swing arm 304 is rotationally connected to the first housing 302 or the second housing 303 , and the door panel swing arm 304 is connected to the first housing 302
  • the rotational connection of the second housing 303 can also be realized by other methods, such as realizing the rotational connection by means of a rotating shaft, all of which belong to the protection scope of the present application.
  • FIGS. 7 to 14 the three-dimensional structure diagram of the folding assembly as shown in FIG. 15 and the exploded structure diagram of the folding assembly as shown in FIG. 16 can finally be formed.
  • the exploded structure schematic diagram of the folding assembly shown in FIG. 16 only a part of the internal structure of the first sliding groove 3011 in the shaft seat 301 is shown, and the other part can be arranged symmetrically.
  • the above figures are only partial structural schematic diagrams showing the features of the folding assembly, and the illustrated structures may have other deformations, which are not specifically limited in the embodiment of the present application.
  • Fig. 17 is a schematic structural view of a folding assembly provided by an embodiment of the present application when it is folded inward by 30°;
  • Fig. 18 is a schematic structural view of a folding assembly provided by an embodiment of this application when it is in a fully folded state. In the process of changing the folding assembly provided by the embodiment of the present application from the unfolded state to the folded state with reference to FIG. 6, FIG. 17 and FIG. changes in the positional relationship between them.
  • the door panel swing arm 304 and the upper surface of the shaft seat 301 are in a state of complete fit, and the wedge-shaped surface 3024 of the first housing 302 or the second housing 303
  • the included angle with the corresponding door panel swing arm 304 is the largest, and the first housing 302 or the second housing 303 can provide effective support for the door panel swing arm 304 to ensure the stability of the structure.
  • the door swing arm 304 rotates along the first slide groove 3011 with the first slide groove 3011 as a fulcrum, so that the door swing arm 304 and the shaft seat 301 An angle is formed between the upper surfaces of the .
  • the first housing 302 or the second housing 303 moves relatively between the first housing 302 or the second housing 303 and the corresponding door panel swing arm 304, so that the first The wedge-shaped surface 3024 of the housing 302 or the second housing 303 gradually approaches the corresponding swing arm 304 of the door panel.
  • the angle formed between the door panel swing arm 304 and the upper surface of the shaft seat 301 is at the maximum state, and the second housing 303 or the second housing 303
  • the wedge-shaped surface 3024 is completely attached to the corresponding door panel swing arm 304 .
  • the gap between the two door panel swing arms 304 can form a drop shape or other required shapes, so that the folded flexible display screen 10 can form a drop-shaped screen after folding, which improves the folding life.
  • the structure of the door panel swing arm matched with the shaft seat, the first housing and the second housing can reduce various The movable virtual position of the components during the folding movement, and the stable structure can improve the folding life, and can effectively support the flexible display when it is in the unfolded state.
  • each component can be completely avoided and the shape of the flexible display can be maintained.
  • the flexible display can achieve the desired bending curvature and shape, such as a drop-shaped screen.
  • the space utilization rate of the folding assembly can be improved, and the folded size of the folding assembly can be reduced.
  • the folded size A in this figure is relatively small For example, it may be smaller than 14 millimeters (mm).
  • the folding assembly 30 shown in FIG. 6 may further include a synchronous mechanism.
  • the synchronization mechanism is located between the first casing 302 and the second casing 303 , and the two sides of the synchronization mechanism are respectively connected with a first swing arm 305 and a second swing arm 306 .
  • Both the first housing 302 and the second housing 303 are provided with a third sliding slot 3023, the first swing arm 305 is matched with the third sliding slot 3023 on the first housing 302, and the second swing arm 306 is compatible with the third sliding slot 3023 on the first housing 302.
  • the third slide groove 3023 on the second housing 303 is suitable for it.
  • the first swing arm 305 slides along the third sliding groove 3023 on the first housing 302
  • the second swing arm 306 slides along the third sliding groove 3023 on the second housing 303 slide.
  • the third chute 3023 compatible with the first swing arm 305 and the second swing arm 306 can also be provided on the door panel swing arms 304 on both sides of the shaft seat 301, and this situation should also belong to the present application scope of protection.
  • both the first swing arm 305 and the second swing arm 306 can be set as a plate-shaped structure, and the third chute 3023 is a bar-shaped groove.
  • the first casing 302 can drive the first swing arm 305 to rotate based on the synchronous mechanism, so that the first casing 302 can move along the first swing arm 305 and the third chute 3023
  • the swing arm 305 slides.
  • the second swing arm 306 also rotates based on the synchronization mechanism, so that the first housing 302 rotates driven by the first swing arm 305 and slides along the second swing arm 306 .
  • the second housing 303 can be folded inward synchronously; conversely, when the second housing 303 is folded inward, the first housing 302 can also be Simultaneously fold inwards.
  • the synchronous mechanism may include a first gear shaft 4011 and a second gear shaft 4012 arranged symmetrically, the first swing arm 305 is fixedly connected to the first gear shaft 4011 , and the second swing arm 306 is fixedly connected to the second gear shaft 4012 superior.
  • the first gear shaft 4011 is provided with a first gear 4013
  • the second gear shaft 4012 is provided with a second gear 4014; the first gear 4013 and the second gear 4014 are meshed through synchronous gear combination.
  • the first housing 302 when the first housing 302 is folded inward, the first housing 302 can drive the first swing arm 305 to rotate. At this time, the first swing arm 305 rotates with the first gear 4013 as the fulcrum and the center of the circle.
  • the synchronous gear combination may include a first synchronous gear 4015 and a second synchronous gear 4016 meshing with each other; the first synchronous gear 4015 meshes with the first gear 4013;
  • the first housing 302 can drive the first swing arm 305 to rotate.
  • the first swing arm 305 rotates with the first gear 4013 as the fulcrum and the center of the circle.
  • the first gear 4013 can drive the first synchronous gear 4015 to move, and the first synchronous gear 4015 drives the second synchronous gear 4016 to move.
  • the second synchronous gear 4016 drives the second gear 4014 to move, and the second gear 4014 drives the second gear shaft 4012 to rotate, thereby driving the second swing arm 306 to rotate, thereby realizing the first housing 302 and the second housing 303 Simultaneously fold inwards.
  • both the first swing arm 305 and the second swing arm 306 can be provided with two spaced connecting rings 4017, and the connecting rings 4017 are sleeved on the first gear shaft 4011 or the second gear shaft 4012, so that the first swing arm 305 Both the second swing arm 306 and the second swing arm 306 are fixedly connected to the first gear shaft 4011 and the second gear shaft 4012 through two spaced connecting rings 4017 .
  • a damping spring 4018 and a damping cam 4019 are sleeved on the first gear shaft 4011 between the two spaced connecting rings and the second gear shaft 4012 between the two spaced connecting rings 4017 .
  • the damping spring 4018 generates frictional force by pressing the damping cam 4019 to form a motion damping effect, thereby improving the structural stability and reliability of the folding assembly 30 during the rotation and folding process.

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Abstract

本申请提供一种折叠组件及可折叠电子设备，能够解决折叠组件处于折叠状态时尺寸较大，且折叠组件的稳定性较差的问题，以提高折叠组件的稳定性和可靠性，并降低折叠组件处于折叠状态时的尺寸，进而提升用户体验。该折叠组件应用于可折叠电子设备，用于承载柔性显示屏。该折叠组件包括：轴座、第一壳体和第二壳体。其中，第一壳体和第二壳体分别设置于轴座两侧。轴座的上方位于轴座中心线的两侧，均设置有门板摆臂，且每个门板摆臂的一端与轴座转动连接，每个门板摆臂的另一端与第一壳体或第二壳体转动连接。

Description

折叠组件及可折叠电子设备
本申请要求于2021年1月14日提交国家知识产权局、申请号为202110050482.1、发明名称为“一种应用于折叠屏移动终端的多门板联动转轴结构”的中国专利申请的优先权，以及于2021年03月02日提交国家知识产权局、申请号为202110230558.9、发明名称为“折叠组件及可折叠电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及一种折叠组件及包括该折叠组件的可折叠电子设备。
背景技术
在可折叠电子设备中，一般通过折叠组件实现电子设备的可折叠功能。折叠组件的结构设计以及结构之间的布局，直接影响着可折叠电子设备折叠后的尺寸，以及折叠组件的机械稳定性和可靠性。
目前的折叠组件的结构设计方案中，折叠组件在折叠运动过程中，运动配合的机构较多，使得折叠组件的稳定性较差；而且，整个折叠组件所占用的空间也比较大，使折叠组件处于折叠状态时的尺寸较大。
发明内容
本申请实施例提供一种折叠组件及可折叠电子设备，能够解决折叠组件处于折叠状态时尺寸较大，且折叠组件的稳定性较差的问题。
为达到上述目的，本申请采用如下技术方案：
第一方面，提供一种折叠组件。该折叠组件应用于可折叠电子设备，用于承载柔性显示屏。该折叠组件包括：轴座、第一壳体和第二壳体。其中，第一壳体和第二壳体分别设置于轴座两侧。轴座的上方位于轴座中心线的两侧，均设置有门板摆臂，且每个门板摆臂的一端与轴座转动连接，每个门板摆臂的另一端与第一壳体或第二壳体转动连接。
基于上述折叠组件，该折叠组件将门板结构和摆臂结构合二为一，形成门板摆臂，使得在柔性显示屏被折叠的过程中，轴座两侧的两个门板摆臂只需与轴座以及轴座两侧的第一壳体或第二壳体配合运动即可，运动配合机构简单，使得该折叠组件的稳定性和可靠性具有较大的提升；并且将门板结构和摆臂结构合二为一后，能够提高折叠组件的空间利用率，从而降低折叠组件折叠后的尺寸，提升用户体验。
可选地，轴座上位于轴座中心线的两侧均设置有第一滑槽，轴座两侧的门板摆臂上分别设置有，与轴座中心线两侧的第一滑槽相适配的第一滑轨，当门板摆臂基于轴座转动时，第一滑轨沿第一滑槽滑动。如此，当两门板摆臂旋转至两门板摆臂之间的夹角为180度时，轴座的上表面可以与门板摆臂的下表面相贴合，形成稳定的阻挡作用，使两门板摆臂之间的夹角保持在180度。
进一步地，第一滑槽呈圆弧形槽状，第一滑槽的两侧壁设置有第一圆弧形凸台， 第一滑轨的两侧设置有与第一圆弧形凸台适配的第一圆弧形凹槽，当第一滑轨沿第一滑槽滑动时，第一圆弧形凸台沿第一圆弧形凹槽滑动。如此，当门板摆臂基于轴座转动时，第一圆弧形凸台与第一圆弧形凹槽可以限制第一滑轨在第一滑槽内稳定滑动，避免门板摆臂上的第一滑轨在滑动的过程中从第一滑槽滑出，从而提高折叠组件的结构稳定性和可靠性。
一种可能的实现方式中，第一壳体和第二壳体均为楔形结构，当折叠组件从展开状态向折叠状态变化时，第一壳体的楔形面，向与第一壳体连接的门板摆臂靠近直至贴合；第二壳体的楔形面，向与第二壳体连接的门板摆臂靠近直至贴合。如此，可以使折叠组件在完全折叠的状态时，两门板摆臂之间可以形成水滴状或其他需要的形状，也即经过折叠后的柔性显示屏在折叠后能够形成水滴状屏幕，提高折叠寿命。此外，还可以使折叠组件在完全展开的状态时，第一壳体和第二壳体能够对门板摆臂形成有效支撑，提高折叠组件的结构稳定性。
可选地，第一壳体和第二壳体上均设置有第二滑槽，每个门板摆臂上均设置有与第二滑槽适配的第二滑轨，当门板摆臂基于轴座转动时，第二滑轨沿第二滑槽滑动。如此可以实现门板摆臂与第一壳体或第二壳体之间角度的变化。
进一步地，第二滑槽呈圆弧形槽状，第二滑槽的两侧设置有第二圆弧形凸台，第二滑轨的两侧设置有与第二圆弧形凸台向适配的第二圆弧形凹槽，当第二滑轨沿第二滑槽滑动时，第二圆弧形凸台沿第二圆弧形凹槽滑动。如此，当门板摆臂与第一壳体或第二壳体相对运动时，第二圆弧形凸台与第二圆弧形凹槽可以限制第二滑轨在第二滑槽内稳定滑动，避免门板摆臂上的第二滑轨在滑动的过程中从第二滑槽滑出，从而提高折叠组件的结构稳定性和可靠性。
一种可能的实现方式中，折叠组件还包括同步机构，同步机构位于第一壳体和第二壳体之间；同步机构的两侧分别连接有第一摆臂和第二摆臂。第一壳体和第二壳体上均设置有第三滑槽，第一摆臂与第一壳体上的第三滑槽相适配，第二摆臂与第二壳体上的第三滑槽相适配。当门板摆臂基于轴座转动时，第一摆臂沿第一壳体上的第三滑槽滑动，第二摆臂沿第二壳体上的第三滑槽滑动。如此，在同步机构的作用下，向内折叠第一壳体时，第二壳体可以同步向内折叠；相反地，向内折叠第二壳体时，第一壳体也可以同步向内折叠。
可选地，同步机构包括对称设置的第一齿轮轴和第二齿轮轴，第一摆臂固定连接在第一齿轮轴上，第二摆臂固定连接在第二齿轮轴上。第一齿轮轴上设置有第一齿轮，第二齿轮轴上设置有第二齿轮；第一齿轮和第二齿轮通过同步齿轮组合相啮合。例如，当第一壳体向内折叠时，第一壳体可以带动第一摆臂旋转。此时，第一摆臂以第一齿轮为支点和圆心进行旋转运动，旋转时可以驱动同步齿轮组合运动，由同步齿轮组合驱动第二齿轮运动，第二齿轮带动第二齿轮轴旋转，从而带动第二摆臂做旋转运动，进而实现第一壳体和第二壳体同步向内折叠。
进一步地，同步齿轮组合包括相互啮合的第一同步齿轮和第二同步齿轮；第一同步齿轮与第一齿轮啮合；第二同步齿轮与第二齿轮啮合。如此，第一齿轮可以驱动第一同步齿轮运动，由第一同步齿轮驱动第二同步齿轮运动，再由第二同步齿轮驱动第二齿轮运动，从而实现第一壳体和第二壳体同步向内折叠。
可选地，第一摆臂和第二摆臂均通过两个间隔的连接环，分别与第一齿轮轴和第二齿轮轴固定连接。两个间隔的连接环之间的第一齿轮轴，以及两个间隔的连接环之间的第二齿轮轴上，均套设有阻尼弹簧和阻尼凸轮。如此，阻尼弹簧通过挤压阻尼凸轮产生摩擦力从而形成运动阻尼效果，从而提高在旋转折叠的过程中，折叠组件的结构稳定性和可靠性。
第二方面，提供一种可折叠电子设备。该可折叠电子设备包括柔性显示屏以及如上第一方面任一种可能的折叠组件。其中，柔性显示屏贴合于折叠组件的上表面。
可以理解地，上述提供的任一种可折叠电子设备，均可以由上文所提供的对应的折叠组件来实现，或与上文所提供的对应的折叠组件相关联，因此，其所能达到的有益效果可参考上文所提供的折叠组件中的有益效果，此处不再赘述。
附图说明
图1为一种可折叠电子设备处于展开状态的结构示意图；
图2为一种可折叠电子设备处于折叠状态的结构示意图；
图3为一种折叠组件处于展开状态的结构示意图；
图4为一种折叠组件处于折叠状态的结构示意图；
图5为本申请实施例提供的一种折叠组件的整体结构示意图；
图6为本申请实施例提供的一种折叠组件处于展开状态的结构示意图；
图7为图6所示的轴座的结构示意图；
图8为图6所示的门板摆臂的结构示意图；
图9为图7所示的轴座与图8所示的门板摆臂的连接结构示意图；
图10为图9所示的连接结构在旋转组装过程中的示意图；
图11为图9所示的连接结构在旋转组装到位时的示意图；
图12为图6所示的第二壳体的结构示意图；
图13为图12所示的第二壳体与图8所示的门板摆臂的连接结构示意图一；
图14为图12所示的第二壳体与图8所示的门板摆臂的连接结构示意图二；
图15为图6所示的折叠组件的立体结构示意图；
图16为图6所示的折叠组件的爆炸结构示意图；
图17为图6所示的折叠组件处于向内折叠30°时的结构示意图；
图18为图6所示的折叠组件处于完全折叠状态时的结构示意图；
图19为本申请实施例提供的一种折叠组件与同步机构的连接结构的俯视结构示意图；
图20为本申请实施例提供的一种折叠组件与同步机构的连接结构的侧视结构示意图；
图21为本申请实施例提供的一种折叠组件增加同步机构后的俯视结构示意图；
图22为本申请实施例提供的一种折叠组件增加同步机构后的立体结构示意图；
图23为图22所示的折叠组件增加同步机构后的爆炸结构示意图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述。
以下，术语“第一”、“第二”等仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”等的特征可以明示或者隐含地包括一个或者更多个该特征。在本申请的描述中，除非另有说明，“多个”的含义是两个或两个以上。
此外，本申请中，“上”、“下”等方位术语是相对于附图中的部件示意置放的方位来定义的，应当理解到，这些方向性术语是相对的概念，它们用于相对于的描述和澄清，其可以根据附图中部件所放置的方位的变化而相应地发生变化。
可折叠电子设备是一种可以对电子设备的柔性显示屏进行折叠的电子设备，可通过电子设备中内置的折叠组件来实现电子设备的可折叠功能。该可折叠电子设备可以为手机、显示器、平板电脑、车载电脑等具有显示界面的产品。本申请实施例对上述可折叠电子设备的具体形式不做特殊限制。
如图1所示，以手机为例，可折叠电子设备01包括柔性显示屏10。该柔性显示屏10例如为有源矩阵有机发光二极管(activematrix organic lightemitting diode，AMOLED)显示屏。
AMOLED显示屏作为一种自发光显示屏，无需设置背光模组(backlight module，BLM)。因此，当AMOLED显示屏中的衬底基板采用柔性树脂材料，例如聚对苯二甲酸乙二醇酯(polyethylene terephthalate，PET)构成时，上述AMOLED显示屏能够具有可弯折的特性。
应理解，图1所示的电子设备为内折叠设计的可折叠电子设备，在折叠状态时，柔性显示屏位于设备内侧。
为实现电子设备的可折叠功能，如图1所示，上述可折叠电子设备01还包括用于承载柔性显示屏10的折叠组件20，且所柔性显示屏10贴合于所述折叠组件的上表面。
该折叠组件20包括第一壳体组件201、第二壳体组件202以及位于第一壳体组件201和第二壳体组件202之间的转轴组件203。
其中，第一壳体组件201和第二壳体组件202可以是电子设备的中框结构。第一壳体组件201和第二壳体组件202可以沿着转轴组件203两侧旋转，从而带动柔性显示屏10折叠或者展开。如图1所示，当第一壳体组件201和第二壳体组件202之间的夹角为180度时，柔性显示屏10处于展开状态。或者，如图2所示，当第一壳体组件201和第二壳体组件202合到一起时，柔性显示屏10处于折叠状态。
如图3、图4所示，为一种折叠组件的展开或折叠状态示意图。该折叠组件20包括转轴组件203、设置在转轴组件203两侧的呈L型的中框结构。其中，转轴组件203两侧的中框结构分别作为第一壳体组件201和第二壳体组件202。该第一壳体组件201和第二壳体组件202的L型区域的上方，分别设置有第一摆臂结构204和第二摆臂结构205，第一摆臂结构204与第一壳体组件201之间，以及第二摆臂结构205与第二壳体组件202之间采用螺钉锁紧。转轴组件203上对称设置有两个旋转轴，分别为第一旋转轴2031和第二旋转轴2032。第一摆臂结构204与第一旋转轴2031转动连接，且以第一旋转轴2031为中心旋转。第二摆臂结构205与第二旋转轴2032转动连接，且以第二旋转轴2032为中心旋转。
此外，转轴组件203上还设置有内门板206，内门板206的两侧分别设置有第一 外门板207和第二外门板208，第一外门板207和第二外门板208可以分别沿着第一摆臂结构204和第二摆臂结构205的上表面滑动，内门板206、第一外门板207和第二外门板208共同构成的门板结构，用于承载折叠电子设备中的柔性显示屏。
如图3和图4所示，当第一摆臂结构204以第一旋转轴2031为中心旋转时，可以驱动第一外门板207跟随第一摆臂结构204旋转，且可以驱动第一外门板207沿着第一摆臂结构204的上表面滑动，从而使使用该折叠组件20的可折叠电子设备处于展开或折叠状态。
值得注意的是，在图3和图4所示的折叠组件20中，门板结构和摆臂结构为独立的结构，且在折叠组件20展开或折叠的过程中，需要门板结构和摆臂结构相配合，在运动过程中，运动配合的机构较多，尺寸链长，使得折叠组件20的稳定性和可靠性较差。此外，门板结构和摆臂的分体结构，使得整个折叠组件20占用的空间较大，可折叠电子设备的整机厚度较大，进而使用户体验较差。如图4所示，该折叠组件20处于折叠状态时，折叠后的尺寸A比较大，比如大于14.8毫米(mm)。
为了降低折叠组件处于折叠状态时的尺寸，并提高折叠组件的稳定性，本申请实施例提供一种改进的折叠组件，如图5、图6所示的折叠组件30。
如图5、图6所示，该折叠组件30应用于图1和图2所示的可折叠电子设备01，并且用于承载柔性显示屏10。该折叠组件30包括轴座301、第一壳体302和第二壳体303，其中第一壳体302和第二壳体303分别设置与轴座301的两侧，轴座301的上方位于轴座301的中心线的两侧，均设置有门板摆臂304，且每个门板摆臂304的一端与轴座301转动连接，每个门板摆臂304的另一端与第一壳体302或第二壳体303转动连接。
应理解，第一壳体302和第二壳体303可以是可折叠电子设备01的中框结构。轴座301中心线两侧设置的门板摆臂304，可以沿轴座301的中心线对称设置，也可以非对称设置，如沿轴座301的中心线错开设置。
示例性地，当轴座301两侧的门板摆臂304以轴座301为支点旋转，使得轴座301两侧的门板摆臂304之间的夹角小于180度时，柔性显示屏10被折叠。在柔性显示屏10被折叠的过程中，当折叠上述折叠组件30时，门板摆臂304以轴座301为支点旋转。在旋转的过程中，轴座301两侧的门板摆臂304还会与轴座301两侧的第一壳体302或第二壳体303之间形成相对运动，从而使折叠组件30带动折叠组件30上方的柔性显示屏10处于展开或折叠状态。
由此，本申请实施例中，将门板结构和摆臂结构合二为一，形成门板摆臂304，使得在柔性显示屏10被折叠的过程中，轴座301上方的两个门板摆臂304只需与轴座301以及轴座301两侧的第一壳体302或第二壳体303配合运动即可，运动配合机构简单，使得该折叠组件30的稳定性和可靠性具有较大的提升；并且将门板结构和摆臂结构合二为一后，能够提高折叠组件30的空间利用率，从而降低折叠组件30折叠后的尺寸，提升用户体验。
可选地，如图7、图8和图9所示，轴座301上位于轴座中心线的两侧(即与门板摆臂304转动连接的位置处)，均设置有第一滑槽3011，轴座两侧的门板摆臂304上分别设置有，与轴座中心线两侧的第一滑槽3011相适配的第一滑轨3041(为体现 门板摆臂304的结构特征，图8为从门板摆臂304中间剖开后的结构示意图，因此图8中仅示出了第一滑轨3041的其中一部分，另一部分可以是与图8中的图示部分对称设置的结构)，当门板摆臂304基于轴座301转动(以轴座301为支点转动)时，第一滑轨3041沿第一滑槽3011滑动。为实现轴座301上连接的两个门板摆臂304之间的夹角，可以在0度到108度之间变化，第一滑槽3011可以是在轴座301的上表面开设的圆弧形槽，第一滑轨3041可以是在门板摆臂304的下表面设置的，与圆弧形槽相适配的圆弧形凸起；或者，第一滑槽3011可以是从轴座301的上表面嵌入轴座301内部的圆弧形槽，第一滑轨3041可以是在门板摆臂304的下表面上设置的，与嵌入轴座301内部的圆弧形槽相匹配的圆弧形臂。由此，如图10和图11所示，当两个门板摆臂204在轴座301上旋转时，第一滑轨3041逐渐深入到第一滑槽3011中；当两个门板摆臂304旋转至两个门板摆臂304之间的夹角为180度时，轴座301的上表面可以与门板摆臂304的下表面相贴合，形成稳定的阻挡作用，使两个门板摆臂304之间的夹角保持在180度。
此外，为保证结构的稳定性，第一滑轨3041可以与门板摆臂304一体成型。若第一滑槽3011是在轴座301的上表面开设的圆弧形槽，则在该第一滑槽3011的两侧壁上设置有第一圆弧形凸台3012，且第一滑轨3041的两侧壁上设置有与第一圆弧形凸台3012适配的第一圆弧形凹槽3042。同样地，当第一滑轨3041沿第一滑槽3011滑动时，第一圆弧形凸台3012可以沿第一圆弧形凹槽3042滑动。如此，当门板摆臂304基于轴座301转动时，第一圆弧形凸台3012与第一圆弧形凹槽3042可以限制第一滑轨3041在第一滑槽3011内稳定滑动，避免门板摆臂304上的第一滑轨3041在滑动的过程中从第一滑槽3011滑出，从而提高折叠组件30的结构稳定性和可靠性。
需要说明的是，图7、图8和图9仅仅示出了门板摆臂304与轴座301转动连接的一种方式，门板摆臂304与轴座301转动连接还可以通过其他方式实现，如通过旋转轴的方式实现转动连接，这些均属于本申请的保护范围。
为节省空间，第一壳体302和第二壳体303可以设置为如图6所示的楔形结构，结合图17和图18，当该折叠组件30从展开状态向折叠状态变化时，第一壳体302的楔形面3024，向对应的门板摆臂304(即与第一壳体302连接的门板摆臂304)靠近直至贴合；第二壳体303的楔形面3024，向对应的门板摆臂304(即与第二壳体303连接的门板摆臂304)靠近直至贴合。门板摆臂304与第一壳体302或第二壳体303转动连接而形成的相对运动，可以完成上述的靠近直至贴合的动作。如此，可以使图6所示的折叠组件30在完全折叠的状态时，两个门板摆臂304之间可以形成水滴状或其他需要的形状(如图18所示)，也即经过折叠后的柔性显示屏10在折叠后能够形成水滴状屏幕，提高折叠寿命。此外，还可以使折叠组件30在完全展开的状态时，第一壳体302和第二壳体303能够对门板摆臂304形成有效支撑，提高折叠组件30的结构稳定性。
可选地，如图6、图12、图13和图14所示，为完成第一壳体302或第二壳体303的楔形面3024，向对应的门板摆臂304靠近直至贴合的过程，第一壳体302和第二壳体303上均设置有第二滑槽3021，每个门板摆臂304上均设置有与第二滑槽3021适配的第二滑轨3043，当门板摆臂304基于轴座301转动(以轴座301为支点转动)时， 第二滑轨3043沿第二滑槽3021滑动。
为实现门板摆臂304与第一壳体302或第二壳体303之间角度的变化，第二滑槽3021可以是在第一壳体302或第二壳体303的上表面开设的圆弧形槽，第二滑轨3043可以是在门板摆臂304的下表面设置的与圆弧形槽相适配的圆弧形凸起；或者，第二滑槽3021可以是从第一壳体302或第二壳体303的上表面嵌入轴座301内部的圆弧形槽，第二滑轨3043可以是在门板摆臂304的下表面上设置的，与嵌入第一壳体302或第二壳体303内部的圆弧形槽相匹配的圆弧形臂。
此外，为保证结构的稳定性，第二滑轨3043可以与门板摆臂304一体成型。若第二滑槽3021是在第一壳体302或第二壳体303的上表面开设的圆弧形槽，则在该第二滑槽3021的两侧壁上设置有第二圆弧形凸台3022，且第二滑轨3043的两侧壁上设置有与第二圆弧形凸台3022适配的第二圆弧形凹槽3044。同样地，当第二滑轨3043沿第二滑槽3021滑动时，第二圆弧形凸台3022可以沿第二圆弧形凹槽3044滑动。如此，当门板摆臂304与第一壳体302或第二壳体303相对运动时，第二圆弧形凸台3022与第二圆弧形凹槽3044可以限制第二滑轨3043在第二滑槽3021内稳定滑动，避免门板摆臂304上的第二滑轨3043在滑动的过程中从第二滑槽3021滑出，从而提高折叠组件30的结构稳定性和可靠性。
需要说明的是，图12、图13和图14仅仅示出了门板摆臂304与第一壳体302或第二壳体303转动连接的一种方式，门板摆臂304与第一壳体302或第二壳体303转动连接还可以通过其他方式实现，如通过旋转轴的方式实现转动连接，这些均属于本申请的保护范围。
结合图7至图14中的各附图，可最终形成如图15所示的折叠组件的立体结构示意图，以及图16所示的折叠组件的爆炸结构示意图。为了便于展示，图16所示的折叠组件的爆炸结构示意图中，轴座301中的第一滑槽3011中的内部结构仅画出了其中一部分，另一部分可以对称设置。应理解，以上各图中仅为展现该折叠组件特征的部分结构示意图，图示的结构可以有其他变形，本申请实施例不做特殊限制。
图17为本申请实施例提供的一种折叠组件处于向内折叠30°时的结构示意图；图18为本申请实施例提供的一种折叠组件处于完全折叠状态时的结构示意图。下面结合图6、图17和图18对本申请实施例提供的折叠组件从展开状态到折叠状态变化的过程中，轴座301、门板摆臂304以及第一壳体302、第二壳体303之间位置关系的变化。
如图6所示，当折叠组件30处于展开状态时，门板摆臂304与轴座301的上表面之间处于完全贴合的状态，第一壳体302或第二壳体303的楔形面3024与对应的门板摆臂304之间夹角最大，且第一壳体302或第二壳体303能够对门板摆臂304提供有效支撑，保证结构的稳定性。
如图17所示，当折叠组件30从展开状态逐渐向折叠状态变化时，门板摆臂304以第一滑槽3011为支点沿着第一滑槽3011转动，使门板摆臂304与轴座301的上表面之间形成夹角。相应地，第一壳体302或第二壳体303在门板摆臂304的作用下，第一壳体302或第二壳体303与相对应的门板摆臂304之间相对运动，使第一壳体302或第二壳体303的楔形面3024与对应的门板摆臂304之间逐渐靠近。
如图18所示，当折叠组件30处于完全折叠状态时，门板摆臂304与轴座301的 上表面之间形成的夹角处于最大状态，且第二壳体303或第二壳体303的楔形面3024与对应的门板摆臂304之间完全贴合。两个门板摆臂304之间可以形成水滴状或其他需要的形状，从而使经过折叠后的柔性显示屏10在折叠后能够形成水滴状屏幕，提高折叠寿命。
综上所述，本申请实施例中的折叠组件将门板结构和摆臂结构合二为一后，门板摆臂与轴座、第一壳体以及第二壳体相配合的结构，能够减少各部件在折叠运动过程中的活动虚位，并且结构稳定，能够提高折叠寿命，以及能够对柔性显示屏处于展开状态时进行有效支撑，运动过程中各部件能够完全避让，并保持柔性显示屏的形态。通过调整门板摆臂与轴座之间的相对运动，使柔性显示屏能够达到想要实现的弯折曲率和形态，如水滴状屏幕。此外，还能够提高折叠组件的空间利用率，并降低折叠组件折叠后的尺寸，结合图18所示的折叠组件完全处于折叠状态时的状态图，该图中折叠后的尺寸A相对较小，比如可以小于14毫米(mm)。
一些实施例中，为实现轴座301两侧的门板摆臂304能够同步运动，图6所示的折叠组件30还可以包括同步机构。如图19至图23所示，该同步机构位于第一壳体302和第二壳体303之间，且同步机构的两侧分别连接有第一摆臂305和第二摆臂306。在第一壳体302和第二壳体303上均设置有第三滑槽3023，第一摆臂305与第一壳体302上的第三滑槽3023相适配，第二摆臂306与第二壳体303上的第三滑槽3023相适配。当门板摆臂304基于轴座301转动时，第一摆臂305沿第一壳体302上的第三滑槽3023滑动，第二摆臂306沿第二壳体303上的第三滑槽3023滑动。
可以理解地，与第一摆臂305和第二摆臂306相适配的第三滑槽3023，也可以设置在轴座301两侧的门板摆臂304上，这种情况也应属于本申请的保护范围。
如图19至图23所示，第一摆臂305和第二摆臂306均可以设置为板状结构，第三滑槽3023为条形槽，当第一壳体302在对应的门板摆臂304的带动下旋转时，第一壳体302可以带动第一摆臂305基于同步机构旋转，使得第一壳体302在第一摆臂305和第三滑槽3023的配合下，沿着第一摆臂305滑动。相应地，在同步机构的作用下，第二摆臂306也基于同步机构旋转，从而使第一壳体302在第一摆臂305的带动下旋转，并沿着第二摆臂306滑动。如此，在同步机构的作用下，向内折叠第一壳体302时，第二壳体303可以同步向内折叠；相反地，向内折叠第二壳体303时，第一壳体302也可以同步向内折叠。
具体地，同步机构可以包括对称设置的第一齿轮轴4011和第二齿轮轴4012，第一摆臂305固定连接在第一齿轮轴4011上，第二摆臂306固定连接在第二齿轮轴4012上。第一齿轮轴4011上设置有第一齿轮4013，第二齿轮轴4012上设置有第二齿轮4014；第一齿轮4013和第二齿轮4014通过同步齿轮组合相啮合。例如，当第一壳体302向内折叠时，第一壳体302可以带动第一摆臂305旋转。此时，第一摆臂305以第一齿轮4013为支点和圆心进行旋转运动，旋转时可以驱动同步齿轮组合运动，由同步齿轮组合驱动第二齿轮4014运动，第二齿轮4014带动第二齿轮轴4012旋转，从而带动第二摆臂306做旋转运动，进而实现第一壳体302和第二壳体303同步向内折叠。
更为具体地，同步齿轮组合可以包括相互啮合的第一同步齿轮4015和第二同步齿轮4016；第一同步齿轮4015与第一齿轮4013啮合；第二同步齿轮4016与第二齿轮 4014啮合。例如，当第一壳体302向内折叠时，第一壳体302可以带动第一摆臂305旋转。此时，第一摆臂305以第一齿轮4013为支点和圆心进行旋转运动，旋转时第一齿轮4013可以驱动第一同步齿轮4015运动，由第一同步齿轮4015驱动第二同步齿轮4016运动，再由第二同步齿轮4016驱动第二齿轮4014运动，第二齿轮4014带动第二齿轮轴4012旋转，从而带动第二摆臂306做旋转运动，进而实现第一壳体302和第二壳体303同步向内折叠。
可选地，为实现第一摆臂305与第一齿轮轴4011，第二摆臂306与第二齿轮轴4012的固定连接关系。第一摆臂305和第二摆臂306上均可以设置两个间隔的连接环4017，该连接环4017套设在第一齿轮轴4011或第二齿轮轴4012上，从而使第一摆臂305和第二摆臂306均通过两个间隔的连接环4017，分别与第一齿轮轴4011和第二齿轮轴4012固定连接。
此外，两个间隔的连接环之间的第一齿轮轴4011，以及两个间隔的连接环4017之间的第二齿轮轴4012上，均套设有阻尼弹簧4018和阻尼凸轮4019。在该结构中，阻尼弹簧4018通过挤压阻尼凸轮4019产生摩擦力从而形成运动阻尼效果，从而提高在旋转折叠的过程中，折叠组件30的结构稳定性和可靠性。
需要说明的是，为便于展示，图21至图23中所示的折叠组件示意图中，轴座301中的第一滑槽3011中的内部结构仅示出了其中一部分结构，另一部分可以对称设置。
以上所述，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所述权利要求的保护范围为准。

Claims (11)

  1. 一种折叠组件，其特征在于，应用于可折叠电子设备，用于承载柔性显示屏，所述折叠组件包括：
    轴座；
    第一壳体；
    第二壳体；所述第一壳体和所述第二壳体分别设置于所述轴座两侧；
    所述轴座的上方位于所述轴座中心线的两侧，均设置有门板摆臂，且每个所述门板摆臂的一端均与所述轴座转动连接，每个所述门板摆臂的另一端与所述第一壳体或所述第二壳体转动连接。
  2. 根据权利要求1所述的折叠组件，其特征在于，所述轴座上位于所述轴座中心线的两侧均设置有第一滑槽，所述轴座两侧的所述门板摆臂上分别设置有，与所述轴座中心线两侧的所述第一滑槽适配的第一滑轨，当所述门板摆臂基于所述轴座转动时，所述第一滑轨沿所述第一滑槽滑动。
  3. 根据权利要求2所述的折叠组件，其特征在于，所述第一滑槽呈圆弧形槽状，所述第一滑槽的两侧壁设置有第一圆弧形凸台，所述第一滑轨的两侧设置有与所述第一圆弧形凸台适配的第一圆弧形凹槽，当所述第一滑轨沿所述第一滑槽滑动时，所述第一圆弧形凸台沿所述第一圆弧形凹槽滑动。
  4. 根据权利要求1至3任一项所述的折叠组件，其特征在于，所述第一壳体和第二壳体均为楔形结构，当所述折叠组件从展开状态向折叠状态变化时，所述第一壳体的楔形面，向与所述第一壳体连接的所述门板摆臂靠近直至贴合；所述第二壳体的楔形面，向与所述第二壳体连接的所述门板摆臂靠近直至贴合。
  5. 根据权利要求1至4任一项所述的折叠组件，其特征在于，所述第一壳体和所述第二壳体上均设置有第二滑槽，每个所述门板摆臂上均设置有与所述第二滑槽适配的第二滑轨，当所述门板摆臂基于所述轴座转动时，所述第二滑轨沿所述第二滑槽滑动。
  6. 根据权利要求5所述的折叠组件，其特征在于，所述第二滑槽呈圆弧形槽状，所述第二滑槽的两侧设置有第二圆弧形凸台，所述第二滑轨的两侧设置有与所述第二圆弧形凸台向适配的第二圆弧形凹槽，当所述第二滑轨沿所述第二滑槽滑动时，所述第二圆弧形凸台沿所述第二圆弧形凹槽滑动。
  7. 根据权利要求1至6任一项所述的折叠组件，其特征在于，所述折叠组件还包括同步机构，所述同步机构位于所述第一壳体和所述第二壳体之间；所述同步机构的两侧分别连接有第一摆臂和第二摆臂；
    所述第一壳体和所述第二壳体上均设置有第三滑槽，所述第一摆臂与所述第一壳体上的所述第三滑槽相适配，所述第二摆臂与所述第二壳体上的所述第三滑槽相适配；
    当所述门板摆臂基于所述轴座转动时，所述第一摆臂沿所述第一壳体上的所述第三滑槽滑动，所述第二摆臂沿所述第二壳体上的所述第三滑槽滑动。
  8. 根据权利要求7所述的折叠组件，其特征在于，所述同步机构包括对称设置的第一齿轮轴和第二齿轮轴，所述第一摆臂固定连接在所述第一齿轮轴上，所述第二摆 臂固定连接在所述第二齿轮轴上；
    所述第一齿轮轴上设置有第一齿轮，所述第二齿轮轴上设置有第二齿轮；所述第一齿轮和所述第二齿轮通过同步齿轮组合相啮合。
  9. 根据权利要求8所述的折叠组件，其特征在于，所述同步齿轮组合包括相互啮合的第一同步齿轮和第二同步齿轮；所述第一同步齿轮与所述第一齿轮啮合；所述第二同步齿轮与所述第二齿轮啮合。
  10. 根据权利要求8至9任一项所述的折叠组件，其特征在于，所述第一摆臂和所述第二摆臂均通过两个间隔的连接环，分别与所述第一齿轮轴和所述第二齿轮轴固定连接；所述两个间隔的连接环之间的所述第一齿轮轴，以及所述两个间隔的连接环之间的所述第二齿轮轴上，均套设有阻尼弹簧和阻尼凸轮。
  11. 一种可折叠电子设备，其特征在于，包括柔性显示屏以及如权利要求1至10任一项所述的折叠组件；所述柔性显示屏贴合于所述折叠组件的上表面。
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