WO2022194141A1 - 折叠机构、支架结构和电子设备 - Google Patents

折叠机构、支架结构和电子设备 Download PDF

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Publication number
WO2022194141A1
WO2022194141A1 PCT/CN2022/080908 CN2022080908W WO2022194141A1 WO 2022194141 A1 WO2022194141 A1 WO 2022194141A1 CN 2022080908 W CN2022080908 W CN 2022080908W WO 2022194141 A1 WO2022194141 A1 WO 2022194141A1
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WO
WIPO (PCT)
Prior art keywords
support plate
screen support
housing seat
folding mechanism
rotating part
Prior art date
Application number
PCT/CN2022/080908
Other languages
English (en)
French (fr)
Inventor
成东村
贾晓飞
董飞
侯善文
Original Assignee
维沃移动通信有限公司
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 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Priority to EP22770494.7A priority Critical patent/EP4311208A1/en
Priority to KR1020237030920A priority patent/KR20230142793A/ko
Publication of WO2022194141A1 publication Critical patent/WO2022194141A1/zh
Priority to US18/469,436 priority patent/US20240007554A1/en

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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
    • H04M1/022—The hinge comprising two parallel pivoting axes
    • 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
    • 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
    • H04M1/0269—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel mounted in a fixed curved configuration, e.g. display curved around the edges of the telephone housing
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0217—Mechanical details of casings
    • H05K5/0226—Hinges

Definitions

  • the present application discloses a folding mechanism, a bracket structure and an electronic device to solve the problems of relatively poor synchronization and easy damage of the current folding electronic device.
  • an embodiment of the present application discloses a folding mechanism, including a first screen support plate, a second screen support plate, a first housing seat, a second housing seat, a base, and a synchronization assembly, wherein:
  • the first synchronous swing arm is provided with a spirally extending first chute
  • the second synchronous swing arm is provided with a spirally extended second chute
  • the synchronous connecting piece is provided with a first sliding block and a second sliding block
  • the first sliding block is slidably matched with the first chute
  • the second sliding block is matched with the second chute
  • the first housing seat and the second housing seat pass through the The synchronizing components rotate synchronously.
  • An embodiment of the present application provides a folding mechanism, which includes a first screen support plate, a second screen support plate, a first housing seat, a second housing seat, a base, and a synchronization assembly, and the first screen support plate is provided on the first screen support plate.
  • the housing seat, the second screen support plate is arranged on the second housing seat. Both the first housing seat and the second housing seat are rotatably connected to the base, and the first screen support plate and the second screen support plate can rotate relative to the first and second housing seats, so that the folding mechanism is folded. Toggle between the state and the expanded state.
  • the other one of the first synchronous swing arm and the second synchronous swing arm can be rotated together, so that the first screen support plate and the second screen support plate can be rotated at the same angle to improve the synchronization of the folding mechanism, thereby improving the The service life of the folding mechanism and the electronic equipment using the folding mechanism.
  • FIG. 2 is a schematic diagram of a structure including a synchronization component in the stent structure disclosed in an embodiment of the present application;
  • Fig. 3 is the exploded schematic diagram of the structure shown in Fig. 2;
  • FIG. 4 is a schematic diagram of a partial structure including a base in the stent structure disclosed in the embodiment of the present application;
  • Figure 5 is an exploded schematic view of the structure shown in Figure 4.
  • FIG. 6 is an exploded schematic diagram of the electronic device disclosed in the embodiment of the present application.
  • FIG. 8 is a schematic diagram of an electronic device provided in an embodiment of the present application in an unfolded state
  • FIG. 9 is a schematic diagram of an electronic device provided in an embodiment of the present application in a folded state.
  • the embodiments of the present application disclose a folding mechanism, a bracket structure, and an electronic device.
  • the electronic device may be a foldable electronic device, the electronic device may include the flexible display screen 610 and the above-mentioned bracket structure, and the bracket structure may include the first casing 110, the second casing 120 and the above-mentioned folding mechanism, and the above-mentioned folding mechanism is used to make the electronic device Ability to switch between collapsed and expanded states.
  • the folding mechanism disclosed in the embodiments of the present application includes a first screen support plate 210 , a second screen support plate 220 , a first housing seat 310 , a second housing seat 320 , a base 410 and a synchronization components.
  • the structures of the first screen support plate 210 and the second screen support plate 220 can be symmetrically arranged, and are respectively arranged on opposite sides of the base 410; corresponding to Ground, the structures of the first housing seat 310 and the second housing seat 320 are symmetrically arranged, and the first rotating part 412 on the base 410 that cooperates with the first housing seat 310 and the first rotating part 412 on the base 410 that cooperate with the second housing seat 320
  • the first rotating parts 412 are also symmetrically arranged.
  • the base 410 is the basic structure of the folding mechanism, and the base 410 can provide the installation foundation for other components of the folding mechanism, so that the other components of the folding mechanism can be installed directly or indirectly on the basis of the base 410 .
  • the base 410 is a thin plate piece to reduce the footprint.
  • the base portion 410 may be a metal plate part, and the metal plate part can make the base part 410 still have sufficient strength when the thickness is relatively small, so as not to affect the supporting performance of the base part 410.
  • the base 410 is provided with a plurality of first rotating parts 412
  • the first housing base 310 and the second housing base 320 both include second rotating parts 302
  • the plurality of second rotating parts 302 can be combined with the plurality of first rotating parts 412 .
  • the first housing seat 310 and the second housing seat 320 are able to form a stable rotational fit relationship with the base 410, so as to ensure that the first housing seat 310 can pass through the base 410 and the second housing seat 320 connected as one.
  • the number of the first rotating parts 412 can be two, one of the two first rotating parts 412 is matched with the second rotating part 302 of the first housing seat 310 , and the other is matched with the second housing seat
  • the second rotating part 302 of the 320 is matched with each other.
  • the two second rotating parts 302 can be symmetrically arranged on the base part 410 to ensure that the folding mechanism has better folding performance.
  • the aforementioned multiple first rotating parts 412 can be along the axial direction of the base part 410 , that is, the rotation of the second rotating part 302 Axially spaced.
  • the number of the first rotating parts 412 to be matched with the second housing seat 320 may also be multiple.
  • the rotational axis of the second rotating portion 302 may be the direction A in FIG. 4 .
  • the first rotating part 412 and the second rotating part 302 are rotating structural members that cooperate with each other, for example, the two can be a shaft-hole matching structure.
  • one of the first rotating part 412 and the second rotating part 302 may be an arc-shaped groove-shaped structure, and the other may be an arc-shaped block-shaped structure, in this case , the stability of the rotational cooperation relationship between the first rotating part 412 and the second rotating part 302 can be improved to a certain extent.
  • the base portion 410 may be an arc-shaped structural member, so as to provide a better foundation for forming the first rotating portion 412 and reduce the overall size of the base portion 410 .
  • the first housing seat 310 is provided on the first screen support plate 210
  • the second housing seat 320 is provided on the second screen support plate 220 .
  • both the first screen support plate 210 and the second screen support plate 220 can provide support for the flexible display screen 610 .
  • the first housing seat 310 is disposed on a part of the first screen support plate 210 away from the flexible display screen 610 .
  • the second housing seat 320 is disposed on the side of the second screen support plate 220 away from the flexible display screen 610 .
  • a fixed connection relationship may be formed between the first housing seat 310 and the first screen support plate 210, and between the second housing seat 320 and the second screen support plate 220, so that the first housing seat 310 and the second housing seat 320 can drive the first screen support plate 210 and the second screen support plate 220 to rotate relative to the base 410, respectively.
  • the folding mechanism has an unfolded state and a folded state.
  • the entire folding mechanism can be switched between the folded state and the unfolded state.
  • both the first screen support plate 210 and the second screen support plate 220 will move relative to the base portion 410 .
  • the synchronization assembly includes a first connection shaft 751 , a second connection shaft 752 , a first synchronization swing arm 741 , a second synchronization swing arm 742 and a synchronization connection piece.
  • the first synchronization swing arm 741 is connected to the first synchronization swing arm 741 .
  • a connecting shaft 751 is engaged with the upper limit of the rotation direction of the second rotating portion 302
  • the second synchronous swing arm 742 and the second connecting shaft 752 are engaged with the upper limit of the rotating direction of the second rotating portion 302 .
  • both the first connecting shaft 751 and the second connecting shaft 752 can be rotatably connected to the base 410, the first synchronous swing arm 741 can be sleeved on the first connecting shaft 751, and the second synchronous swing arm 742 can be sleeved On the second connecting shaft 752 , the above two groups of components can be formed in an interference fit relationship correspondingly.
  • the first synchronous swing arm 741 and the first connecting shaft 751 can be connected to form a limit matching relationship by means of a key, and correspondingly, the second synchronous swing arm 742 can be connected to the first connecting shaft 751.
  • the two connecting shafts 752 are connected by a key to form a position-limiting cooperation relationship, which can further improve the stability of the above-mentioned position-limiting cooperation relationship.
  • the first synchronous swing arm 741 cooperates with the first housing seat 310
  • the second synchronous swing arm 742 cooperates with the second housing seat 320
  • the matching relationship between the first synchronous swing arm 741 and the first housing seat 310 can be determined according to actual parameters such as the direction of the rotational axis of the first connecting shaft 751 and the second rotating portion 302 .
  • the first synchronizing swing arm 741 can be opposed to the first housing seat 310 fixed.
  • the rotational axis of the first connecting shaft 751 may not coincide with the rotational axis of the aforementioned second rotational portion 302 .
  • the first synchronous swing arm 741 needs to be Relative movement is possible with the first housing seat 310 .
  • a sliding slot may be provided on one of the first synchronous swing arm 741 and the first housing seat 310 , and a sliding rod may be provided on the other, and the sliding rod may be matched with the sliding slot.
  • the rotational axis of the first connecting shaft 751 does not coincide with the rotational axis of the second rotating part 302
  • the base 410 rotates.
  • the first synchronous swing arm 741 is provided with a spirally extending first sliding slot 731a
  • the second synchronous swing arm 742 is provided with a spirally extended second sliding slot 733a
  • the synchronous connecting piece is provided with a first sliding block 761 and a second sliding block 762
  • the first sliding block 761 is matched with the first sliding groove 731a
  • the second sliding block 762 is matched with the second sliding groove 733a, so that the first housing seat 310 and the second housing seat 320 can be rotated synchronously through the synchronization assembly
  • the first screen support plate 210 and the second screen support plate 220 have the ability to rotate synchronously, so that no matter which one of the above two is driven, it can pass the synchronization component.
  • the other is driven to rotate relative to the base 410 to ensure that the rotation angles of the first screen support plate 210 and the second screen support plate 220 relative to the base 410 are always the same, thereby improving the overall performance of the entire folding mechanism.
  • first sliding block 761 and the second sliding block 762 of the synchronous connecting piece can be connected to a column structure 760 together, and the synchronous connecting piece can be formed by integral molding to lift the first sliding block 761 and the first sliding block 761 and the second sliding block 762 together.
  • the first sliding groove 731a and the second sliding groove 733a may be helical grooves corresponding to each other, so as to ensure that the first sliding block 761 and the
  • the sliding cooperation between the first sliding grooves 731a and between the second sliding block 762 and the second sliding grooves 733a is stable and synchronized.
  • the specific shapes of the first chute 731a and the second chute 733a can be determined according to the specific shapes of the structures in which the two are located, which are not limited here.
  • the embodiment of the present application provides a folding mechanism, which includes a first screen support plate 210, a second screen support plate 220, a first housing seat 310, a second housing seat 320, a base 410 and a synchronization assembly, the first screen supports
  • the board 210 is arranged on the first housing seat 310
  • the second screen support plate 220 is arranged on the second housing seat 320 .
  • the first housing seat 310 and the second housing seat 320 are both rotatably connected to the base 410 , and the first screen support plate 210 and the second screen support plate 220 can rotate relative to the first housing seat 310 and the second housing seat 320 , so that the folding mechanism can be switched between the folded state and the unfolded state.
  • a synchronizing assembly is provided in the folding mechanism, and the synchronizing assembly includes a first connecting shaft 751, a second connecting shaft 752, a first synchronizing swing arm 741, a second synchronizing swing arm 742 and a synchronizing connection piece.
  • the synchronous connecting piece is connected with the first synchronous swing arm 741 and the second synchronous swing arm 742 at the same time, so that one of the first synchronous swing arm 741 and the second synchronous swing arm 742 is connected with the first housing seat
  • the other one of the first synchronous swing arm 741 and the second synchronous swing arm 742 can be rotated together, so as to make the first screen support plate 210 and the second screen support plate 220 is rotated at the same angle to improve the synchronization of the folding mechanism, thereby improving the service life of the folding mechanism and the electronic equipment using the folding mechanism.
  • the synchronization assembly may further include a limit seat 710, the limit seat 710 is fixedly connected with the base 410, a limit hole 711 is provided on the limit seat 710, and one end of the synchronization connector extends into the limiting hole 711 , and the synchronizing connecting piece and the limiting seat 710 are positioned and matched at the upper limit of the rotation direction of the second rotating part 302 .
  • the limiting seat 710 can be fixed on the base 410 by means of bonding or the like, or the limiting seat 710 can be detachably fixed on the base 410 by means of a screw connection, etc., so as to improve the assembly efficiency between the two.
  • both the first sliding block 761 and the second sliding block 762 can be fixed on a columnar structure 760.
  • the seat 710 and the synchronizing connector are matched in the upper limit of the rotation direction of the second rotating part 302 to prevent the synchronizing connector from appearing relative to the base during the rotation of the first synchronizing arm 741 and/or the second synchronizing arm 742 relative to the base 410 410 is rotated, thereby improving the synchronization reliability between the first synchronization swing arm 741 and the second synchronization swing arm 742 .
  • the limiting hole 711 can be a non-circular hole, and the synchronizing connecting piece is corresponding to the shape of the limiting hole 711 , so as to ensure a limiting relationship between the two in the rotation direction of the second rotating part 302 .
  • a groove can also be provided at one end of the synchronizing connector, and a protrusion can be provided in the limiting hole 711. By making the protrusion and the groove cooperate with each other, the synchronizing connector and the limiting hole 711 can also be arranged at the second The rotation direction of the rotation part 302 forms a limiting relationship.
  • the first connecting shaft 751 and the second connecting shaft 752 can be rotatably mounted on the base 410.
  • the synchronizing connecting piece can Both ends of the back are provided with limit seats 710, each limit seat 710 is provided with two matching holes 712, and one end of each of the first connecting shaft 751 and the second connecting shaft 752 is inserted into a limit seat in a one-to-one correspondence.
  • the first connecting shaft 751 , the second connecting shaft 752 and the two limiting seats 710 are limitedly matched in the two matching holes 712 of the second rotating portion 302 in the two matching holes 712 of the second rotating portion 302 .
  • the installation difficulty of the first connecting shaft 751 and the second connecting shaft 752 can be reduced, and the rotational stability of the two can be improved.
  • the two limiting seats 710 can both be fixed on the base 410 through a screw connection, and a certain space can be set between the two limiting seats 710, and the space can be used to install the synchronizing connector.
  • the matching holes can be blind holes, and both the first connecting shaft 751 and the second connecting shaft 752 can be installed into two opposite matching holes 712 to achieve the purpose of rotating and matching with the limiting seat 710 .
  • the matching holes 712 can be all through holes, and the opposite ends of the first connecting shaft 751 and the second connecting shaft 752 can both protrude to the space between the two limiting seats 710 .
  • the first synchronous swing arm 741 may also be provided with a first cam sleeve 731, the first cam sleeve 731 is provided with a first chute 731a, and the folding mechanism further includes a second cam
  • the sleeve 732 and the elastic member 720 are sleeved with a first cam sleeve 731 and a second cam sleeve 732 on the first connecting shaft 751 .
  • the second cam sleeve 732 and the first connecting shaft 751 are rotatably matched in the rotation direction of the second rotating part 302 .
  • the folding mechanism can be easily maintained in the unfolded state and the folded state with the help of the elastic member 720, and the unfolded state or the folded state of the folding mechanism can be prevented from being damaged due to a small external force, and the user can inconvenience to use.
  • the folding mechanism further includes two limit seats 710 that are opposite and fixed along the rotational axis of the second rotating part 302 , and the first cam sleeve 731 , the second cam sleeve 732 and the elastic member 720 are all disposed at the two limit seats between the seats 710 , and the elastic member 720 is disposed on the side of the second cam sleeve 732 away from the first cam sleeve 731 .
  • the two limiting seats 710 can provide a positioning basis, which can improve the reliability of the elastic member 720 on the one hand, and reduce the installation difficulty of the elastic member 720 on the other hand.
  • the elastic member 720 is compressed, so that the elastic member 720 moves toward the first cam sleeve 731 and the second cam sleeve 732.
  • the elastic member 720 can be provided with a pre-tightening force, that is, when the first cam sleeve 731 and the second cam sleeve 732 are engaged with each other, The elastic member 720 can also be in a compressed state.
  • first cam sleeve 731 and the first synchronous swing arm 741 can be formed by welding or integral molding, and the first synchronous swing arm 741 can be connected to the first connecting shaft 751 through the first cam sleeve 731 at the first
  • the two rotating parts 302 form a limit matching relationship in the rotating direction.
  • first cam sleeve 731 and the first connecting shaft 751 can be connected to each other by means of a key connection, and the inner peripheral surface of the second cam sleeve 732 can be a circular structure to ensure that the second cam sleeve 732 can Normally rotate relative to the first connecting shaft 751, of course, in order to prevent the second cam sleeve 732 along with the first cam sleeve 731 along with the first connecting shaft 751 in the process of rotating the first connecting shaft 751 with the first synchronous swing arm 741 Rotating, optionally, the second cam sleeve 732 and the base portion 410 are positioned to fit in the rotation direction of the second rotating portion 302 .
  • the second synchronous swing arm 742 can be provided with a third cam sleeve 733, and the third cam sleeve 733 is provided with a second sliding groove 733a, and the The first cam sleeve 731 and the third cam sleeve 733 are respectively provided with a second cam sleeve 732 and an elastic member 720 .
  • the shape and structure of the third cam sleeve 733 can be the same as the shape and structure of the first cam sleeve 731.
  • the shape and structure of each second cam sleeve 732 can also be the same, so as to reduce the number of spare parts Difficulty and assembly difficulty.
  • both the side where the first synchronous swing arm 741 is located and the side where the second synchronous swing arm 742 is located can be elastically acted by the elastic member 720.
  • the force can prevent the folding mechanism from disengaging from the unfolded and folded states, thereby improving the ability of the folding mechanism to stably maintain the unfolded and folded states.
  • multiple sets of the first cam sleeve 731, the third cam sleeve 733 and the elastic member 720 can be arranged to further enhance the folding mechanism to keep the folding states and the ability to expand states.
  • the second cam sleeve 732 and the base 410 and other components can be formed into a position-limiting relationship that meets the requirements, so as to prevent the second cam sleeve 732 from rotating with the first cam sleeve 731 when the first cam sleeve 731 rotates, and cannot fail to rotate.
  • the first cam sleeve 731 and the second cam sleeve 732 are caused to move axially.
  • the first cam sleeve 731 and the third cam sleeve 733 can be A connecting piece is provided between the two second cam sleeves 732 corresponding to the sleeve 733.
  • the second cam sleeves 732 can be installed on the first connecting shaft 751 and the second connecting shaft 752, respectively, to lower the Assembly difficulty, on the other hand, can also enable the two second cam sleeves 732 to have the ability to act synchronously, further improving the ability of the folding mechanism to maintain the folded state and the unfolded state.
  • the two second cam sleeves 732 are connected by connecting pieces. , so that in the process of designing and assembling the second cam sleeve 732, there is no need to configure the limit structure for the second cam sleeve 732 separately, and under the joint action of the connector and the two second cam sleeves 732, the second cam sleeve 732 can be
  • the cam sleeve 732 can rotate relative to the first connecting shaft 751 and the second connecting shaft 752 respectively, which basically ensures that the second cam sleeve 732 will not rotate with the rotation of the first cam sleeve 731 .
  • a limiting hole 711 can be provided on the aforementioned connecting piece, and the synchronous connecting piece can be matched with the limiting hole 711 on the connecting piece to restrict the synchronous connecting piece from rotating relative to the base portion 410 along the rotation direction of the second rotating portion 302 .
  • the first screen support plate 210 is rotatably fitted with the first housing seat 310, and the second screen support plate 220 is rotated with the second housing seat 320.
  • the first screen support plate 210 and the second screen support plate 220 not only follow the first housing seat 310 and the second screen support plate 220
  • the rotation of the two housing bases 320 corresponds to rotation, the first screen support plate 210 can also rotate relative to the first housing base 310 , and the second screen support plate 220 can also rotate relative to the second housing base 320 .
  • first screen support plate 210 and the second screen support plate 220 both have the first side edge 203 and the second side edge arranged opposite to each other, and the first screen support plate 210 and the second screen support plate 220 both have the opposite side
  • the first surface 201 and the second surface 202 of the arrangement, the first surface 201 of the first screen support plate 210 and the second screen support plate 220 are arranged away from the base 410, that is, the first screen support plate 210 and the second screen support plate 220 220 are arranged on the same side of the base 410, and each first surface 201 is used as a screen support surface to support the flexible display screen 610, etc.
  • the first screen support plate 210 and the second screen support plate 220 are opposite to the first surface 201.
  • the second surface 202 disposed behind is disposed toward the base 410 .
  • the respective first sides 203 of the first screen support plate 210 and the second screen support plate 220 are located between the respective second sides, and the first The screen support plate 210 and the second screen support plate 220 are respectively disposed flush with the first surface 201 of the base portion 410 .
  • the distance between the respective first side edges 203 of the first screen support plate 210 and the second screen support plate 220 is larger than that of the first screen support plate 210 and the second screen support plate 220 The spacing between the respective second sides.
  • the first screen support plate 210 and the second screen support plate 220 are arranged flush, so that both can provide support for the flexible display screen 610 and the like, so as to ensure that the flexible display screen 610 can be stably Keep it flat.
  • the relative rotation angle of the first screen support plate 210 and the second screen support plate 220 is greater than 180°, ensuring that in the folded state, the first screen support plate 210 and the second screen support plate 220 are rotated relative to each other.
  • the distance between the respective first side edges 203 of the screen support plate 210 and the second screen support plate 220 is greater than the distance between the respective second side edges.
  • the folding mechanism can be applied to the bracket structure.
  • the bracket structure When the bracket structure is folded to the folded state with the folding mechanism, as shown in FIG.
  • the respective screen supporting surfaces of the casing 110 and the second casing 120 are arranged in parallel to ensure that the two parts of the flexible display screen 610 supported by the first casing 110 and the second casing 120 can also be parallel to each other.
  • the folding mechanism further includes a cover 420 , the cover 420 is fixedly connected to the side of the base 410 away from the first screen support plate 210 , and the cover 420 can provide protection for the base 410
  • the cover body 420 can be used to cover the folding mechanism, so that when the folding mechanism is applied to the electronic device, the number of exposed parts of the electronic device can be reduced as much as possible.
  • the appearance performance of the electronic device can be improved, and on the other hand, the electronic device can be improved
  • the dustproof and waterproof performance improves the reliability of electronic equipment.
  • the cover body 420 can be fixed on the base part 410 by means of bonding or the like.
  • the base part 410 and the cover body 420 can be detachably connected together by threaded connecting parts such as screws, so as to lift the two parts together. connection reliability between them.
  • the projection of the cover body 420 in the plane where the distribution direction of the first screen support plate 210 and the second screen support plate 220 and the rotation axis of the second rotating part 302 are located covers the first shell
  • the body seat 310 , the second housing seat 320 and the base 410 ensure that the cover body 420 has a better shielding effect.
  • the distribution direction of the first screen support plate 210 and the second screen support plate 220 may be the direction B in FIG. 8 .
  • the first housing seat 310 and/or the second housing seat 320 includes an avoidance structure, and the avoidance structure is provided with an avoidance groove 303.
  • the avoidance structure is provided with an avoidance groove 303.
  • the side edge of the cover body 420 accommodated in the avoidance groove 303 In the unfolded state, the side edge of the cover body 420 accommodated in the avoidance groove 303 .
  • parameters such as the position and size of the avoidance groove 303 can be flexibly determined according to parameters such as the extension position and thickness of the cover body 420 , which are not limited here.
  • the first housing seat 310 and the second housing seat 320 are provided with avoidance grooves 303.
  • the avoidance grooves 303 can provide space for the side of the cover body 420, Therefore, the size of the cover body 420 that can be extended in the direction close to the first screen support plate 210 and the second screen support plate 220 along the opposite sides along the direction B in FIG. 8 is relatively larger, and the cover body 420 is further raised. Therefore, when the folding mechanism is in the folded state, the gap between the cover body 420 and the first casing 110 and the second casing 120 can be made smaller, thereby making the cooperation between the three more reliable. .
  • the position of the avoidance structure can be made to protrude to the side away from the avoidance groove 303 .
  • the first screen support plate 210 may be provided with an accommodating groove, and in the folded state, at least a part of the avoidance structure is accommodated in the accommodating groove, so as to prevent the first housing seat 310 from being provided with the aforesaid avoidance. structure, and adversely affect the maximum relative rotation angle between the first screen support plate 210 and the first housing seat 310 .
  • the first screen support plate 210 may be rotatably connected with the first housing 110 in the bracket structure, and as described above, the first housing seat 310 is fixedly connected with the first housing 110, in this case,
  • the first screen support plate 210 and the first housing seat 310 can be in a rotationally matched relationship.
  • the folding mechanism may include a rotating assembly, and the first screen support plate 210 may be rotatably connected to the first housing seat 310 through a plurality of rotating assemblies. Under the action, on the one hand, the stability of the rotational fit between the first screen support plate 210 and the first housing seat 310 can be improved, and on the other hand, the structural options of the rotating assembly can be expanded, and the difficulty of design and processing can be reduced.
  • the rotating assembly specifically includes a third rotating part 510 and a fourth rotating part 520 , and one of the third rotating part 510 and the fourth rotating part 520 is connected to the first housing seat 310 , the other is connected to the first screen support plate 210 .
  • the third rotating part 510 includes an insert block
  • the fourth rotating part 520 is provided with a slot
  • the insert block and the slot are both provided with an arc-shaped mating surface
  • the insert block and the slot are rotatably matched by the arc-shaped mating surface, which can ensure the third rotation
  • There is a larger rotation matching area between the rotating part 510 and the fourth rotating part 520 which improves the reliability of the rotating connection between the two.
  • the rotation axes of the third rotating part 510 and the fourth rotating part 520 are located on the first screen support plate 210 or the first screen support plate 210 is away from the first housing seat 310.
  • the distance between the first screen support plate 210 and the first housing seat 310 can be made relatively smaller under the condition that the rotating assembly is located on the side of the first screen support plate 210 facing the first housing seat 310 , further reducing the size of the space occupied by the entire folding mechanism in the thickness direction of the base portion 410 .
  • a relatively stable rotational connection can also be formed between the second screen support plate 220 and the second housing base 320 through the above-mentioned rotational components.
  • the insert block is installed into the slot, and the maximum relative rotation angle between the insert block and the slot can be limited by other structures such as the first housing seat 310 and the first housing 110 .
  • the first screen support plate 210 and the first housing seat 310 can also be connected to the first screen support plate 210 and the first housing seat 310 by arranging detachable limit structures at opposite ends of the first screen support plate 210 along the rotational axis of the second rotating portion 302. The relative positional relationship on the rotation axis of the second rotating part 302 is restricted to prevent the two from generating relative movement in the aforementioned direction.
  • the fourth rotating part 520 includes a limiting member and a matching member, the limiting member and the matching member form a slot, and the matching member is provided with an arc-shaped matching surface.
  • the respective limiting parts of the two fourth rotating parts 520 of the plurality of fourth rotating parts 520 are arranged opposite to each other, and at least two third rotating parts 510 are limited and arranged at the aforementioned opposite positions. between or outside the two limit pieces set.
  • the respective slots of the two groups of fourth rotating parts 520 disposed at opposite ends of the first screen support plate 210 are disposed outward, that is, the two groups of fourth rotating parts 520 are disposed opposite to each other.
  • the two sets of third rotating parts 510 that cooperate with the aforementioned two sets of fourth rotating parts 520 should be respectively arranged on the outside of the two sets of fourth rotating parts 520 .
  • At least two third rotating parts 510 can be limited by means of the limiting members in the two fourth rotating parts 520, so as to ensure that the third rotating part 510 and the fourth rotating part 520 can be
  • a limit fitting relationship is formed on the rotational axis of the second rotating part 302 to ensure a stable fitting relationship between the first screen support plate 210 and the first housing seat 310 on the rotational axis of the second rotating part 302 .
  • the number of the first housing seat 310 and/or the second housing seat 320 is multiple.
  • the number of the first housing seat 310 and the second housing seat 320 is the same, and both are multiple, and by arranging the multiple first housing seat 310 and the multiple second housing seat 320 in groups, The movement stability between the first casing 110 and the second casing 120 can be further improved.
  • the first housing seat 310 can be rotatably connected with the first screen support plate 210
  • the second housing seat 320 can be rotatably connected with the second screen support plate 220
  • the number of 320 is multiple
  • at least one first housing seat 310 can be rotatably connected to the first screen support plate 210
  • at least one second housing seat 320 can be connected to the second screen support plate 220 . More specifically, as shown in FIG. 1 and FIG.
  • the first housing seats 310 located at opposite ends of the base 410 can be rotatably connected to the first screen support plate 210 through the above-mentioned rotating assembly, and the other first housing seats 310 can no longer be interconnected with the first screen support plate 210, so that the stability of the first housing seat 310 and the first screen support plate 210 can be ensured to have a high rotational fit, and the entire folding mechanism can be reduced. Difficulty in processing and assembly.
  • the second housing seat 320 can also do the same. Considering the brevity of the text, it will not be repeated here.
  • the folding mechanism may further include a third screen support plate 230 , the third screen support plate 230 is disposed opposite to the synchronization assembly, and the first screen support plate 210 faces one side of the second screen support plate 220 . and the side of the second screen support plate 220 facing the first screen support plate 210 are provided with avoidance notches.
  • the third screen support plate 230 is accommodated in the two avoidance notches, and the third screen support plate 230 The first surface facing away from the base 410 is flush with the first surface of the first screen support plate.
  • the shape and size of the avoidance notch can be designed corresponding to the shape and size of the third screen support plate 230.
  • the synchronization components can be avoided through the respective avoidance gaps.
  • the first screen support plate 210 and the second screen support plate Under the condition that the distance between the 220 remains unchanged, the distance between the first screen support plate 210 and the second screen support plate 220 and the base 410 can be further reduced, thereby reducing the overall thickness of the folding mechanism, thereby reducing the use of this The overall thickness of the electronic device of the folding mechanism.
  • the positions of the first screen support plate 210 and the second screen support plate 220 corresponding to the positions on the base 410 that are matched with the first housing seat 310 and the second housing seat 320 can also be determined according to the actual situation. Corresponding design ensures that the part of the base 410 that cooperates with the first housing seat 310 and the second housing seat 320 will not hinder the relative rotation of the first screen support plate 210 and the second screen support plate 320 .
  • the third screen support plate 230 may be fixed on the base portion 410.
  • the third screen support plate 230 may be movably connected to the base portion 410 along its thickness direction.
  • the screen support plate 230 can be movably mounted on the base 410 through pins, so that the third screen support plate 230 can move relative to the base 410 during the operation of the folding mechanism.
  • the distance between the third screen support plate 230 and the base 410 along its thickness direction is the first distance; in the folded state, the distance between the third screen support plate 230 and the base 410 along its own thickness direction is the first distance. The distance between them is the second distance, and the second distance is smaller than the first distance.
  • the third screen support plate 230 moves toward the direction close to the base 410; during the process of the folding mechanism switching from the folded state to the unfolded state, the third screen supports The plate 230 moves away from the base 410 .
  • an elastic member or the like can be arranged between the third screen support plate 230 and the base 410 , so that during the process of folding the flexible display screen, the flexible display screen can be pressed against the third screen support plate 230 in a direction close to the base 410 When the flexible display screen is gradually flattened, the elastic member can drive the third screen support plate 230 to reset by its own elastic force.
  • a power driving member can also be arranged between the third screen support plate 230 and the base 410, and the power driving member can drive the third screen support plate 230 and the base 410 to move toward or away from each other.
  • the first screen support plate 210 and the first housing seat 310 can also rotate relative to each other. More specifically, during the rotation of the first screen support plate 210 toward the first housing base 310, the driving force can be increased by the flexible display screen in the electronic device; During the rotation process of the body base 310, the first screen support plate 210 can be driven by means of elastic restoring force by arranging an elastic member in the folding mechanism, so that the first screen support plate 210 can be moved between the first casing base 310 and the second casing.
  • the first screen support plate 210 When the seat 320 is rotated to the unfolded state, the first screen support plate 210 can be flush with the screen support surface of the first housing 110, so as to jointly provide support for the flexible display screen.
  • a power drive device such as a motor, may also be provided between the first screen support plate 210 and the first housing 110 , and the first screen support plate 210 and the first screen support plate 210 can also be driven by the power drive device.
  • the first housing seats 310 rotate toward or away from each other.
  • the design and production between the second housing base 320 and the second screen support plate 220 can also be carried out with reference to any of the above technical solutions.
  • both sides of the first screen support plate 210 and the second screen support plate 220 close to the third screen support plate 230 are provided with a first overlapping edge
  • the opposite sides of the third screen support plate 230 are provided with second lap edges.
  • each of the second lap edges overlaps with the corresponding first lap edges.
  • the shapes and sizes of the first lap edge and the second lap edge can be adapted to each other.
  • both the first lap edge and the second lap edge can be step-shaped structural members to enhance the third screen.
  • the third screen support plate 230 in the unfolded state, can be overlapped on the first screen support plate 210 and the second screen support plate 220 .
  • the first screen support plate 210 and the second screen support plate 220 can also provide driving force for the movement of the third screen support plate 230 relative to the base 410, and further, with the movement of the folding mechanism, the first screen support plate
  • the plate 210 and the second screen support plate 220 can be automatically rotated, it is not necessary to provide a driving action member for the third screen support plate 230.
  • the number of components in the folding mechanism can be reduced, and on the other hand, the folding mechanism can be improved. The assembly efficiency is improved, and the production cost is reduced.
  • an accommodating groove 411 may be provided on the base portion 410 , and a first rotating portion 412 is provided in the accommodating groove 411 .
  • At least a part of the second rotating part 302 of the second housing base 320 and at least a part of the second rotating part 302 of the second housing seat 320 are accommodated and accommodated in the accommodating groove 411, which can reduce the space occupied by the folding mechanism in the thickness direction of the base part 410, and further Reduce the thickness of the entire electronic device and improve the overall performance of the product.
  • the thickness direction of the base portion 410 may specifically be a direction perpendicular to the direction A in FIG. 4 and the direction B in FIG. 8 .
  • the plurality of first rotating parts 412 can be arranged in one accommodating groove 411.
  • the first housing seat 310 and the second housing seat 310 in order to lift the first housing seat 310 and the second housing seat 310 The stability of the cooperation between the housing seat 320 and the base 410 prevents the first housing seat 310 and the second housing seat 320 from interfering with each other.
  • the first rotating part 412 and the second rotating part 302 can be The specific structure and the parameters such as the structure and size of the accommodating groove 411 are mutually compatible.
  • the opposite sides of the first housing seat 310 and the second housing seat 320 are provided with second rotating parts 302.
  • the first housing seat 310 the two When the second rotating part 302 is matched with the two first rotating parts 412 in one accommodating groove 411 in a one-to-one correspondence, the first housing seat 310 can be further prevented from rotating relative to the base part 410 deviating from its own rotation axis, thereby lifting the first housing
  • the stability of the rotational fit relationship between the body base 310 and the base 410 is also relatively more stable.
  • the plurality of first rotating parts 412 may be grouped in pairs, and the two first rotating parts in any group may be formed 412 are arranged adjacently on the rotation axis of the second rotating part 302, that is, there is no space between the two first rotating parts 412 in the group on the rotating axis of the second rotating part 302. This technical solution is adopted.
  • the housing seat 310 and the second housing seat 320 are correspondingly matched, and the symmetry between the first housing seat 310 and the second housing seat 320 can also be improved to a certain extent, thereby improving the overall performance of the folding mechanism.
  • the folding mechanism can be applied to the bracket mechanism.
  • the embodiment of the present application further provides a bracket structure.
  • the bracket structure includes a first shell 110 and a second shell 120.
  • the first housing seat 310 is fixedly connected to the first housing 110
  • the second housing seat 320 is fixedly connected to the second housing 120 .
  • the first housing 110 and the second housing 120 can respectively drive the first housing seat 310 and the second housing seat 320 to move relatively, so that the first housing seat 310 and the second housing seat 310 and the second housing The housing seat 320 rotates relatively.
  • the first screen support plate 210 and the first housing seat 310 can be rotated relative to each other. Therefore, in order to prevent the first screen support plate 210 from being rotated by the first housing 110 and the first housing seat 310 If the action is obstructed, optionally, the first housing 110 and the first housing seat 310 are provided with inclined avoidance support surfaces on the side facing the first screen support plate 210. In this case, on the one hand, it can ensure the first The screen support plate 210 has the ability to rotate relative to the first housing base 310 (and the first housing 110 ). On the other hand, the inclined avoidance support surface can also provide a better support effect for the first screen support surface, thereby ensuring The flexible display can be well supported.
  • the side of the second housing 120 and the second housing seat 320 facing the second screen support plate 220 may also be correspondingly provided with
  • the first screen support plate 210 and the second screen support plate 220 can be respectively supported on the corresponding tilt avoidance support surface, thereby improving the action stability of the folding mechanism.
  • the embodiment of the present application further provides an electronic device, the electronic device includes a first display module and the above-mentioned bracket structure, wherein the first display module includes a flexible display screen 610, and the flexible display module 610 is flexible.
  • the display screen 610 is installed on the bracket structure, and the flexible display screen 610 can be supported on the first casing 110, the second casing 120, the first screen support plate 210 and the second screen support plate 220, ensuring that the bracket structure can be the first
  • the flexible display screen 610 in a display module provides a better supporting effect.
  • a second display module is provided on the side of the first housing 110 away from the first display module, and parameters such as the size of the second display module can be selected according to the actual situation.
  • display modules are provided on opposite sides of the first casing 110 .
  • the electronic device disclosed in the embodiments of the present application may be a smart phone, a tablet computer, an e-book reader, or a wearable device.
  • the electronic device may also be other devices, which are not limited in this embodiment of the present application.

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Abstract

本申请公开一种折叠机构、支架机构和电子设备，属于通信设备领域，折叠机构包括第一屏幕支撑板、第二屏幕支撑板、设于第一屏幕支撑板的第一壳体座、设于第二屏幕支撑板的第二壳体座、基部和同步组件；第一壳体座和第二壳体座均与基部转动连接；同步组件中，沿转动方向，第一同步摆臂与第一连接轴限位配合，第二同步摆臂与第二连接轴限位配合；第一同步摆臂和第二同步摆臂分别设有螺旋延伸的第一滑槽和第二滑槽，同步连接件的第一滑块和第二滑块对应地与第一滑槽和第二滑槽滑动配合，第一壳体座和第二壳体座通过同步组件同步转动。

Description

折叠机构、支架结构和电子设备
交叉引用
本发明要求在2021年03月19日提交中国专利局、申请号为202110297141.4、发明名称为“折叠机构、支架结构和电子设备”的中国专利申请的优先权，该申请的全部内容通过引用结合在本发明中。
技术领域
本申请属于通信设备技术领域，具体涉及一种折叠机构、支架结构和电子设备。
背景技术
随着技术的进步，手机等电子设备的样式也越来越多样化，如平板式、滑盖式和折叠式等，其中，折叠式电子设备以其具有较大显示面积和较强的便携性等优势，而愈发被消费者所青睐。但是，目前的折叠式电子设备的左右壳体的同步性相对较差，易损坏。
发明内容
本申请公开一种折叠机构、支架结构和电子设备，以解决目前的折叠式电子设备的同步性相对较差，易损坏的问题。
为了解决上述问题，本申请实施例是这样实现地：
第一方面，本申请实施例公开了一种折叠机构，包括第一屏幕支撑板、第二屏幕支撑板、第一壳体座、第二壳体座、基部和同步组件，其中：
所述第一壳体座设于所述第一屏幕支撑板，所述第二壳体座设于所述第二屏幕支撑板；
所述基部设有多个第一转动部，所述第一壳体座和所述第二壳体座均通 过各自的第二转动部与多个所述第一转动部一一对应地转动连接，所述折叠机构具有展开状态和折叠状态；
所述同步组件包括第一连接轴、第二连接轴、第一同步摆臂、第二同步摆臂和同步连接件，
所述第一同步摆臂与所述第一连接轴在所述第二转动部的转动方向上限位配合，且所述第一同步摆臂与所述第一壳体座配合；
所述第二同步摆臂与所述第二连接轴在所述第二转动部的转动方向上限位配合，且所述第二同步摆臂与所述第二壳体座配合；
所述第一同步摆臂设有螺旋延伸的第一滑槽，所述第二同步摆臂设有螺旋延伸的第二滑槽，所述同步连接件设有第一滑块和第二滑块，所述第一滑块与所述第一滑槽滑动配合，所述第二滑块与所述第二滑槽配合，所述第一壳体座和所述第二壳体座通过所述同步组件同步转动。
第二方面，本申请实施例公开了一种支架结构，包括第一壳体、第二壳体和权利要求-任意一项所述的折叠机构，所述第一壳体座与所述第一壳体固定连接，所述第二壳体座与所述第二壳体固定连接。
第三方面，本申请实施例公开了一种电子设备，包括第一显示模组和权利要求或所述的支架结构，所述第一显示模组包括柔性显示屏，所述第一显示模组安装于所述支架结构，且所述第一显示模组可支撑于所述第一壳体、第二壳体、第一屏幕支撑板和第二屏幕支撑板。
本申请实施例提供一种折叠机构，其包括第一屏幕支撑板、第二屏幕支撑板、第一壳体座、第二壳体座、基部和同步组件，第一屏幕支撑板设于第一壳体座，第二屏幕支撑板设于第二壳体座。第一壳体座和第二壳体座均与基部转动连接，第一屏幕支撑板和第二屏幕支撑板可以随第一壳体座和第二壳体座相对转动，从而使折叠机构在折叠状态和展开状态之间相互切换。
并且，折叠机构中设置有同步组件，同步组件包括第一连接轴、第二连接轴、第一同步摆臂、第二同步摆臂和同步连接件，借助螺旋滑槽和滑块，使得同步连接件同时与第一同步摆臂和第二同步摆臂连接在一起，从而在第 一同步摆臂和第二同步摆臂中的一者在随第一壳体座或第二壳体座转动的同时，能够使第一同步摆臂和第二同步摆臂中的另一者一并转动，进而使第一屏幕支撑板和第二屏幕支撑板同角度转动，提升折叠机构的同步性，进而提升折叠机构及采用该折叠机构的电子设备的使用寿命。
附图说明
此处所说明的附图用来提供对本申请的进一步理解，构成本申请的一部分，本申请的示意性实施例及其说明用于解释本申请，并不构成对本申请的不当限定。在附图中：
图1是本申请实施例公开的支架结构中部分结构的示意图；
图2是本申请实施例公开的支架结构中包括同步组件的结构的示意图；
图3是图2示出的结构的分解示意图；
图4是本申请实施例公开的支架结构中包括基部的部分结构的示意图；
图5是图4示出的结构的分解示意图；
图6是本申请实施例公开的电子设备的分解示意图；
图7是本申请实施例公开的电子设备中部分结构的放大图；
图8是本申请实施例提供的电子设备处于展开状态的示意图；
图9是本申请实施例提供的电子设备处于折叠状态的示意图。
附图标记说明：
110-第一壳体、120-第二壳体、
201-第一表面、202-第二表面、203-第一侧边、210-第一屏幕支撑板、220-第二屏幕支撑板、230-第三屏幕支撑板、
302-第二转动部、303-避让凹槽、310-第一壳体座、320-第二壳体座、
410-基部、411-容纳槽、412-第一转动部、420-盖体、
510-第三转动部、520-第四转动部、
610-柔性显示屏、
710-限位座、711-限位孔、712-配合孔、720-弹性件、731-第一凸轮套、731a-第一滑槽、732-第二凸轮套、733-第三凸轮套、733a-第二滑槽、741-第一同步摆臂、742-第二同步摆臂、751-第一连接轴、752-第二连接轴、760-柱状结构、761-第一滑块、762-第二滑块、770-卡簧。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合本申请具体实施例及相应的附图对本申请技术方案进行清楚、完整地描述。显然，所描述的实施例仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
以下结合附图，详细说明本申请各个实施例公开的技术方案。
如图1-9所示，本申请实施例公开一种折叠机构、支架结构和电子设备。电子设备可以为折叠式电子设备，电子设备可以包括柔性显示屏610和上述支架结构，支架结构可以包括第一壳体110、第二壳体120和上述折叠机构，采用上述折叠机构，使得电子设备能够在折叠和展开状态之间相互切换。
如图6和图7所示，本申请实施例公开的折叠机构包括第一屏幕支撑板210、第二屏幕支撑板220、第一壳体座310、第二壳体座320、基部410和同步组件。为了提升折叠机构的对称性，以提升整个折叠机构的折叠性能，可以使第一屏幕支撑板210和第二屏幕支撑板220的结构对称设置，且分别设置在基部410的相背两侧；对应地，第一壳体座310和第二壳体座320的结构对称设置，基部410上和第一壳体座310配合的第一转动部412与基部410上和第二壳体座320配合的第一转动部412亦均对称设置。
基部410为折叠机构的基础结构件，基部410能够为折叠机构的其它组成部分提供安装基础，进而使得折叠机构的其它组成部分直接或间接地以基部410为基础进行安装。可选地，基部410为薄板件，以减小占用空间。具体地，基部410可以为金属板件，金属板件能够使得基部410在较小的厚度 时仍具备足够的强度，进而不影响基部410的支撑性能。
基部410设有多个第一转动部412，第一壳体座310和第二壳体座320均包括第二转动部302，多个第二转动部302可以与多个第一转动部412一一对应地相互配合，从而使第一壳体座310和第二壳体座320均能够与基部410形成稳定的转动配合关系，保证第一壳体座310能够通过基部410与第二壳体座320连接为一体。
具体地，第一转动部412的数量可以为两个，两个第一转动部412中的一者与第一壳体座310的第二转动部302配合，另一者与第二壳体座320的第二转动部302配合，在这种情况下，两个第二转动部302可以对称设置在基部410上，以保证折叠机构具有较好的折叠性能。当然，在与第一壳体座310配合的第一转动部412的数量为多个的情况下，前述多个第一转动部412可以沿基部410的轴向，即第二转动部302的转动轴向间隔排布。对应地，与第二壳体座320配合的第一转动部412的数量亦可以设置有多个。通过采用上述技术方案，可以进一步提升第一壳体座310和第二壳体座320之间连接关系和转动配合关系的可靠性。其中，第二转动部302的转动轴向可以为图4中的方向A。
第一转动部412和第二转动部302为相互配合的转动结构件，例如，二者可以为轴孔配合结构。在本申请的另一实施例中，第一转动部412和第二转动部302中的一者可以为弧形槽状结构，另一者可以为弧形块状结构件，在这种情况下，可以在一定程度上提升第一转动部412和第二转动部302之间转动配合关系的稳定性。并且，基部410可以为弧形结构件，以为第一转动部412提供更好的形成基础，且减小基部410的整体尺寸。
如图1-图9所示，第一壳体座310设于第一屏幕支撑板210，第二壳体座320设于第二屏幕支撑板220。在上述折叠机构应用至电子设备中的情况下，第一屏幕支撑板210和第二屏幕支撑板220均能够为柔性显示屏610提供支撑作用。为了防止第一壳体座310和第二壳体座320的存在对柔性显示屏610的被支撑效果产生影响，第一壳体座310设置在第一屏幕支撑板210 背离柔性显示屏610的一侧，对应地，第二壳体座320设置在第二屏幕支撑板220背离柔性显示屏610的一侧。可选地，第一壳体座310和第一屏幕支撑板210之间，以及第二壳体座320和第二屏幕支撑板220之间可以形成有固定连接关系，从而使第一壳体座310和第二壳体座320可以分别带动第一屏幕支撑板210和第二屏幕支撑板220相对基部410转动。
折叠机构具备展开状态和折叠状态，通过使第一壳体座310和第二壳体座320均以基部410为基础相对运动，可以使整个折叠机构在折叠状态和展开状态之间相互切换。并且，在折叠机构的状态切换过程中，第一屏幕支撑板210和第二屏幕支撑板220均会相对基部410运动。
如图2和图3所示，同步组件包括第一连接轴751、第二连接轴752、第一同步摆臂741、第二同步摆臂742和同步连接件，第一同步摆臂741与第一连接轴751在第二转动部302的转动方向上限位配合，第二同步摆臂742与第二连接轴752在第二转动部302的转动方向上限位配合。
具体地，第一连接轴751和第二连接轴752均可以转动连接在基部410上，第一同步摆臂741可以套设在第一连接轴751上，且第二同步摆臂742可以套设在第二连接轴752上，且可以使上述两组部件均对应形成过盈配合关系。在本申请的另一实施例中，可以使第一同步摆臂741和第一连接轴751之间通过键连接的方式形成限位配合关系，对应地，可以使第二同步摆臂742与第二连接轴752之间通过键连接的方式形成限位配合关系，这可以进一步提升上述限位配合关系的稳定性。
同时，第一同步摆臂741和第一壳体座310配合，第二同步摆臂742和第二壳体座320配合。具体地，可以根据第一连接轴751和第二转动部302的转动轴向所在的方向等实际参数，确定第一同步摆臂741与第一壳体座310之间的配合关系。例如，在前述第一连接轴751的轴向与第一壳体座310的第二转动部302的转动轴向重合的情况下，可以使第一同步摆臂741与第一壳体座310相对固定。在本申请的另一实施例中，可以使第一连接轴751的转动轴向与前述第二转动部302的转动轴向不重合，在这种情况下，则需要 使第一同步摆臂741与第一壳体座310之间能够相对运动。
具体地，结合图2和图4，可以在第一同步摆臂741和第一壳体座310中的一者上设置滑槽，另一者上设置滑杆，且使滑杆与滑槽配合，在这种情况下，即便第一连接轴751的转动轴向与第二转动部302的转动轴向不重合，亦可以保证第一壳体座310能够带动第一同步摆臂741一并相对基部410转动。
第一同步摆臂741设有螺旋延伸的第一滑槽731a，第二同步摆臂742设有螺旋延伸的第二滑槽733a，同步连接件设有第一滑块761和第二滑块762，第一滑块761与第一滑槽731a配合，第二滑块762与第二滑槽733a配合，进而使第一壳体座310和第二壳体座320能够通过同步组件同步转动
在采用上述技术方案的情况下，可以保证第一屏幕支撑板210和第二屏幕支撑板220之间具备同步转动的能力，从而无论前述二者中的哪一者被驱动，均可以通过同步组件带动另一者相对基部410转动，保证第一屏幕支撑板210和第二屏幕支撑板220相对基部410的转动角度始终相同，提升整个折叠机构的综合性能。
具体地，同步连接件的第一滑块761和第二滑块762可以一并连接在一柱状结构760上，且同步连接件可以通过一体成型的方式形成，以提升第一滑块761和第二滑块762之间固定关系的稳定性。第一滑槽731a和第二滑槽733a可以为互相对应的螺旋状凹槽，以在第一同步摆臂741和第二同步摆臂742相对转动的过程中，保证第一滑块761与第一滑槽731a之间，以及第二滑块762与第二滑槽733a之间的滑动配合关系稳定且同步。当然，第一滑槽731a和第二滑槽733a的具体形状可以根据二者所在的结构的具体形状确定，此处不作限定。
本申请实施例提供一种折叠机构，其包括第一屏幕支撑板210、第二屏幕支撑板220、第一壳体座310、第二壳体座320、基部410和同步组件，第一屏幕支撑板210设于第一壳体座310，第二屏幕支撑板220设于第二壳体座320。第一壳体座310和第二壳体座320均与基部410转动连接，第一屏 幕支撑板210和第二屏幕支撑板220可以随第一壳体座310和第二壳体座320相对转动，从而使折叠机构在折叠状态和展开状态之间相互切换。
并且，折叠机构中设置有同步组件，同步组件包括第一连接轴751、第二连接轴752、第一同步摆臂741、第二同步摆臂742和同步连接件，借助螺旋滑槽和滑块，使得同步连接件同时与第一同步摆臂741和第二同步摆臂742连接在一起，从而在第一同步摆臂741和第二同步摆臂742中的一者在随第一壳体座310或第二壳体座320转动的同时，能够使第一同步摆臂741和第二同步摆臂742中的另一者一并转动，进而使第一屏幕支撑板210和第二屏幕支撑板220同角度转动，提升折叠机构的同步性，进而提升折叠机构及采用该折叠机构的电子设备的使用寿命。
进一步地，本申请实施例提供的折叠机构中，同步组件还可以包括限位座710，限位座710与基部410固定连接，限位座710上设置有限位孔711，同步连接件的一端伸入至限位孔711中，且同步连接件和限位座710在第二转动部302的转动方向上限位配合。具体地，限位座710可以通过粘接等方式固定在基部410上，或者，可以通过螺纹连接件等将限位座710可拆卸地固定在基部410上，提升二者之间的组装效率和连接可靠性，且便于后续拆装和维护。如上所述，第一滑块761和第二滑块762均可以固定在一柱状结构760上，可选地，可以使前述柱状结构760的一端伸入至限位孔711中，从而使限位座710与同步连接件在第二转动部302的转动方向上限位配合，防止在第一同步摆臂741和/或第二同步摆臂742相对基部410转动的过程中，出现同步连接件相对基部410转动的情况，进而提升第一同步摆臂741和第二同步摆臂742之间的同步可靠性。
另外，限位孔711可以为非圆形孔，且使同步连接件为与限位孔711的形状对应，从而保证二者之间能够在第二转动部302的转动方向上形成限位关系。或者，还可以在同步连接件的一端设置凹槽，且在限位孔711内设置凸块，通过使凸块与凹槽相互配合，亦可以使同步连接件和限位孔711能够在第二转动部302的转动方向上形成限位关系。需要说明的是，无论是否设 置限位座710，均需保证第一同步摆臂741和第二同步摆臂742与同步连接件之间能够沿第二转动部302的转动轴向相对运动，从而保证同步组件能够正常工作。
如上所述，第一连接轴751和第二连接轴752可以转动安装在基部410上，基于上述实施例，在同步组件设有限位座710的情况下，进一步地，可以在同步连接件的相背两端均设置限位座710，各限位座710均设有两个配合孔712，第一连接轴751和第二连接轴752各自的一端一一对应地插接配合于一个限位座710的两个配合孔712中，且在第二转动部302的转动轴向上，使第一连接轴751、第二连接轴752和两个限位座710限位配合。在采用上述技术方案的情况下，可以降低第一连接轴751和第二连接轴752的安装难度，且提升二者的转动稳定性。
具体地，可以使两个限位座710均通过螺纹连接件固定在基部410上，且使两个限位座710之间设置一定的空间，该空间可以用来安装同步连接件。配合孔可以为盲孔，第一连接轴751和第二连接轴752均可以安装至相对的两个配合孔712之内，实现与限位座710转动配合的目的。在本申请的另一实施例中，可以使配合孔712均为贯穿孔，且使第一连接轴751和第二连接轴752各自的相背两端均伸出至两个限位座710之外，之后，可以借助卡簧770实现对第一连接轴751和第二连接轴752的限位，保证第一连接轴751和第二连接轴752亦能够与两个限位座710形成稳定的限位配合关系。
可选地，本申请实施例提供的折叠机构中，第一同步摆臂741还可以设置有第一凸轮套731，第一凸轮套731设有第一滑槽731a，折叠机构还包括第二凸轮套732和弹性件720，第一连接轴751上套设有第一凸轮套731和第二凸轮套732。第二凸轮套732与第一连接轴751在第二转动部302的转动方向上转动配合，在第一凸轮套731和第二凸轮套732相对转动的情况下，弹性件720处于拉伸状态或收缩状态。
具体地，第一凸轮套731和第二凸轮套732的具体结构可以相同或近似，二者扣合设置，且在第一凸轮套731和第二凸轮套732相对转动的过程中， 第一凸轮套731与第二凸轮套732之间的最大间距会大于二者的初始间距(即最小间距)，在这种情况下，弹性件720会被拉伸或被压缩，进而使弹性件720能够向第一凸轮套731和/或第二凸轮套732施加弹性复位作用力，促进第一凸轮套731和第二凸轮套732恢复至扣合状态，即二者之间间距最小的状态。
通过采用上述技术方案，可以对第一凸轮套731和第二凸轮套732之间处于扣合状态的相对位置进行设计，使得在折叠机构处于折叠状态和展开状态时，第一凸轮套731和第二凸轮套732均处于扣合状态，从而只要折叠机构不再处于折叠状态或展开状态，第一凸轮套731和第二凸轮套732之间就会因相对转动而增大二者之间的间距，使弹性件720被拉伸或被压缩。因此，采用上述技术方案的情况下，可以借助弹性件720使折叠机构较为容易地保持展开状态和折叠状态，且可以防止较小的外力即导致折叠机构的展开状态或折叠状态被破坏，给用户的使用产生不便。
进一步地，折叠机构还包括沿第二转动部302的转动轴向相对且固定的两个限位座710，第一凸轮套731、第二凸轮套732和弹性件720均设置在两个限位座710之间，且弹性件720设置在第二凸轮套732背离第一凸轮套731的一侧。在采用上述技术方案的情况下，两个限位座710可以提供定位基础的作用，一方面可以提升弹性件720的可靠性，另一方面还可以降低弹性件720的安装难度。
在采用上述技术方案的情况下，第一凸轮套731和第二凸轮套732之间发生相对转动，即会压缩弹性件720，从而使弹性件720向第一凸轮套731和第二凸轮套732施加促使二者复位的弹性作用力。为了进一步防止折叠机构保持折叠状态和展开状态的难度较大的问题，可以使弹性件720具有预紧力，也即，在第一凸轮套731与第二凸轮套732相互扣合的状态下，亦可以使弹性件720处于被压缩状态。
具体地，第一凸轮套731与第一同步摆臂741之间可以通过焊接或一体成型等方式形成，且可以使第一同步摆臂741通过第一凸轮套731与第一连 接轴751在第二转动部302的转动方向上形成限位配合关系。更具体地，第一凸轮套731与第一连接轴751之间可以通过键连接的方式相互连接，第二凸轮套732的内周面则可以为圆形结构件，保证第二凸轮套732能够正常相对第一连接轴751转动，当然，为了防止在第一连接轴751随第一同步摆臂741转动的过程中，第二凸轮套732随第一凸轮套731一并随第一连接轴751转动，可选地，第二凸轮套732与基部410在第二转动部302的转动方向上限位配合。
在第一同步摆臂741上设置有第一凸轮套731的情况下，可以使第二同步摆臂742上设置第三凸轮套733，第三凸轮套733设有第二滑槽733a，且使第一凸轮套731和第三凸轮套733均对应配设有第二凸轮套732和弹性件720。具体地，第三凸轮套733的形状和结构可以与第一凸轮套731的形状和结构对应相同，在这种情况下，各第二凸轮套732的形状和结构亦可以对应相同，以降低备件难度和组装难度。
采用上述技术方案时，在折叠机构处于展开和折叠状态的情况下，第一同步摆臂741所在一侧和第二同步摆臂742所在一侧均可以受到弹性件720的弹性作用，该弹性作用力可以防止折叠机构脱离展开状态和折叠状态，从而提升折叠机构稳定保持展开状态和折叠状态的能力。当然，第一同步摆臂741和第二同步摆臂742二者中，均可以设置多组相互配合的第一凸轮套731、第三凸轮套733和弹性件720，以进一步提升折叠机构保持折叠状态和展开状态的能力。
如上所述，可以通过使第二凸轮套732与基部410等部件形成满足需求的限位关系，防止在第一凸轮套731转动时，第二凸轮套732随第一凸轮套731转动，而无法使第一凸轮套731和第二凸轮套732产生轴向运动。基于上述实施例，在第一同步摆臂741和第二同步摆臂742分别配设有第一凸轮套731和第三凸轮套733的情况下，可以在与第一凸轮套731和第三凸轮套733对应配合的两个第二凸轮套732之间设置连接件，这种情况下，一方面可以一并向第一连接轴751和第二连接轴752上分别安装第二凸轮套732， 降低组装难度，另一方面，还可以使两个第二凸轮套732具备同步动作的能力，进一步提升使折叠机构保持折叠状态和展开状态的能力，另外，通过连接件连接两个第二凸轮套732，使得在设计和组装第二凸轮套732的过程中，无需再单独为第二凸轮套732配置限位结构，在连接件和两个第二凸轮套732的共同作用下，即可使第二凸轮套732能能够分别相对第一连接轴751和第二连接轴752转动，基本可以保证第二凸轮套732不会随第一凸轮套731的转动而转动。另外，可以在前述连接件上设置限位孔711，且使同步连接件与连接件上的限位孔711配合，限制同步连接件沿第二转动部302的转动方向相对基部410转动。
进一步地，如图7-图9所示，第一屏幕支撑板210与第一壳体座310之间转动配合，第二屏幕支撑板220与第二壳体座320之间转动配合，在这种情况下，在第一壳体座310和第二壳体座320相对基部410转动的过程中，第一屏幕支撑板210和第二屏幕支撑板220不仅会随第一壳体座310和第二壳体座320的转动而对应转动，第一屏幕支撑板210还可以相对第一壳体座310转动，第二屏幕支撑板220亦可以相对第二壳体座320转动。
其中，第一屏幕支撑板210和第二屏幕支撑板220均具有相背设置的第一侧边203和第二侧边，且第一屏幕支撑板210和第二屏幕支撑板220均具有相背设置的第一表面201和第二表面202，第一屏幕支撑板210和第二屏幕支撑板220的第一表面201背离基部410设置，也即，第一屏幕支撑板210和第二屏幕支撑板220均设置于基部410的同一侧，各第一表面201均作为屏幕支撑面，以支撑柔性显示屏610等，第一屏幕支撑板210和第二屏幕支撑板220中，与第一表面201相背设置的第二表面202则朝向基部410设置。
如图8所示，结合图9所示，在展开状态下，第一屏幕支撑板210和第二屏幕支撑板220各自的第一侧边203均位于各自的第二侧边之间，第一屏幕支撑板210和第二屏幕支撑板220各自背离基部410的第一表面201平齐设置。
如图8所示，在折叠状态下，第一屏幕支撑板210和第二屏幕支撑板220 各自的第一侧边203之间的间距，大于第一屏幕支撑板210和第二屏幕支撑板220各自的第二侧边之间的间距。
详细地说，在展开状态下，第一屏幕支撑板210和第二屏幕支撑板220平齐设置，以使二者均可以为柔性显示屏610等提供支撑作用，保证柔性显示屏610能够稳定地保持展平状态。结合图8和图9，在折叠机构自展开状态切换至折叠状态的过程中，第一屏幕支撑板210和第二屏幕支撑板220相对转动的角度大于180°，保证在折叠状态下，第一屏幕支撑板210和第二屏幕支撑板220各自的第一侧边203之间的间距，大于各自的第二侧边之间的间距。
另外，如上所述，折叠机构可以应用在支架结构中，在支架结构随折叠机构折叠至折叠状态时，如图9所示，第一壳体110和第二壳体120层叠设置，且第一壳体110和第二壳体120各自的屏幕支撑面平行设置，保证柔性显示屏610中支撑于第一壳体110和第二壳体120的两个部分亦能够相互平行。在组装第一屏幕支撑板210和第一壳体座310的过程中，可以使第一屏幕支撑板210和第一壳体座310之间的转动连接结构(如下文所提及的转动组件)设置在第一屏幕支撑板210靠近其第二侧边的位置处，从而在第一屏幕支撑板210与第一壳体座310相对转动时，使第一屏幕支撑板210能够基本以自身的第二侧边处为轴，防止在第一屏幕支撑板210的第一侧边203向靠近第一壳体座310的方向转动的同时，出现第一屏幕支撑板210的第二侧边因向背离第一壳体座310的方向转动的情况，保证第一屏幕支撑板210可以始终为柔性显示屏610等部件提供较好的支撑效果。对应地，在组装第二屏幕支撑板220与第二壳体座320的过程中，亦可以参照上述实施方式。
基于上述情况，如图9所示，第一屏幕支撑板210和第二屏幕支撑板220各自的第二侧边之间的间距，也就等于或基本等于处于折叠状态下的支架结构中的第一壳体110和第二壳体120各自的屏幕支撑面之间的间距。因此，也可以认为，在折叠状态下，第一屏幕支撑板210和第二屏幕支撑板220各自的第一侧边203之间的间距，大于第一壳体110和第二壳体120之间的间 距。
更具体地，可以根据第一屏幕支撑板210和第二屏幕支撑板220的宽度等参数，确定处于折叠状态下的折叠机构中第一屏幕支撑板210和第二屏幕支撑板220各自的第一侧边203之间的间距的具体值，前述宽度为垂直于第二转动部302的转动轴向的方向，更明确地，可以为图8中的方向B。
需要说明的是，为了保证第一屏幕支撑板210和第二屏幕支撑板220之间的相对转动角度能够超过180°，需要保证第一屏幕支撑板210能够相对第一壳体座310运动，且需要保证第二屏幕支撑板220能够相对第二壳体座320运动。更具体地来说，为了实现前述目的，可以对基部410、第一壳体座310、第二壳体座320等部件的具体结构和/或安装位置等参数进行限制。
以第一屏幕支撑板210为例，在展开状态下，如图8所示，并结合图9，需要保证第一屏幕支撑板210和第一壳体座310的转动连接位置至第一屏幕支撑板210的第一侧边203之间的部分，与第一壳体座310、基部410和第一壳体110等部件相互间隔，从而为第一屏幕支撑板210向靠近第一壳体座310所在的方向转动提供避让空间。与之相似地，在设计和布置与第二屏幕支撑板220对应的第二壳体座320、基部410和第二壳体120等部件的过程中亦是如此。
在采用上述技术方案的情况下，由于在折叠状态下，第一屏幕支撑板210和第二屏幕支撑板220各自的第一侧边203之间的间距，大于各自的第二侧边之间的间距，从而使第一屏幕支撑板210和第二屏幕支撑板220形成扩口状结构，且前述扩口状结构的扩口朝向基部410，在随折叠机构被折叠的过程中，通过使柔性显示屏610的中间部分容纳于第一屏幕支撑板210和第二屏幕支撑板220形成扩口状结构处，可以使柔性显示屏610的中间部分的被折叠程度相对较小，从而可以尽量防止在柔性显示屏610等显示屏上形成折痕，提升显示屏的使用寿命。
可选地，如图1和图9所示，折叠机构还包括盖体420，盖体420固定连接在基部410背离第一屏幕支撑板210的一侧，借助盖体420可以为基部 410提供防护作用，且可以利用盖体420遮挡折叠机构，从而在折叠机构应用于电子设备中时，尽量减少电子设备外露的部件的数量，一方面提升电子设备的外观性能，另一方面还可以提升电子设备的防尘防水性能，提升电子设备的可靠性。盖体420可以通过粘接等方式固定在基部410上，在本申请的另一实施例中，基部410与盖体420之间可以通过螺钉等螺纹连接件可拆卸地固定连接在一起，提升二者之间的连接可靠性。
同时，在折叠状态下，使盖体420在第一屏幕支撑板210和第二屏幕支撑板220的分布方向与所述第二转动部302的转动轴向所在的平面内的投影覆盖第一壳体座310、第二壳体座320和基部410，以保证盖体420具有较好的遮挡效果。需要说明的是，第一屏幕支撑板210和第二屏幕支撑板220的分布方向可以为图8中的方向B。
具体来说，可以依据折叠机构中其他部件的具体结构和尺寸等参数，通过对盖体420的结构、尺寸和安装位置等参数进行设计，使得在折叠机构处于折叠状态下，自盖体420所在的一侧正视折叠机构时，折叠机构中的第一壳体座310、第二壳体座320和基部410均能够被盖体420所遮挡。更具体地，为了提升盖体420对其他部件的遮挡效果，如图9所示，可以使盖体420整体为弧形结构件，这还可以提升盖体420与支架结构中的第一壳体110和第二壳体120之间的连接紧密性，进一步提升支架结构和电子设备的密封性能。
进一步地，如3-图7所示，第一壳体座310和/或第二壳体座320包括避让结构，避让结构设有避让凹槽303，在展开状态下，盖体420的侧边容纳至避让凹槽303中。具体地，避让凹槽303的位置和尺寸等参数均可以根据盖体420的延伸位置和厚度等参数灵活确定，此处不作限定。
更具体地，第一壳体座310和第二壳体座320上均设置有避让凹槽303，在这种情况下，借助避让凹槽303可以为盖体420的侧边提供让位空间，从而使盖体420沿图8中方向B相背设置的两个侧边向靠近第一屏幕支撑板210和第二屏幕支撑板220的方向所能延伸的尺寸相对更大，进一步提升盖体420 的弯折程度，从而在折叠机构处于折叠状态时，可以使盖体420与第一壳体110和第二壳体120之间的缝隙更小，进而使三者之间的配合可靠性更高。
以第一壳体座310为例，在第一壳体座310设置有避让结构的情况下，为了保证第一壳体座310的结构强度仍能满足使用需求，如图4和图5所示，可以使避让结构所在的位置处向背离避让凹槽303的一侧凸出。基于上述情况，进一步地，第一屏幕支撑板210可以设置有容纳沉槽，在折叠状态下，避让结构的至少一部分容纳于容纳沉槽中，从而防止因第一壳体座310上设置前述避让结构，而对第一屏幕支撑板210和第一壳体座310之间的最大相对转动角度产生不利影响。
具体地，容纳沉槽的位置、宽度和深度等参数亦可以根据避让结构的实际参数灵活确定，此处不作限定。更具体地，第二壳体座320上亦可以设置有对应的避让结构，且第二屏幕支撑板220也对应设置有容纳沉槽，从而提升折叠机构的对称性，进而提升折叠机构的整体性能。
可选地，第一屏幕支撑板210可以与支架结构中的第一壳体110转动连接，且如上所述，第一壳体座310与第一壳体110固定连接，在这种情况下，可以使第一屏幕支撑板210能够与第一壳体座310形成转动配合关系。为了便于安装，如图4所述，且结合图6，折叠机构可以包括转动组件，第一屏幕支撑板210可以通过多个转动组件转动连接于第一壳体座310，在多个转动组件的作用下，一方面可以提升第一屏幕支撑板210和第一壳体座310之间转动配合的稳定性，另一方面还可以扩大转动组件的结构可选类型，降低设计和加工难度。
如图4所示，且结合图6，转动组件具体包括第三转动部510和第四转动部520，第三转动部510和第四转动部520中的一者连接在第一壳体座310上，另一者连接在第一屏幕支撑板210上。第三转动部510包括插块，第四转动部520设有插槽，插块和插槽均设有弧形配合面，插块和插槽通过弧形配合面转动配合，可以保证第三转动部510和第四转动部520之间具有较大的转动配合面积，提升二者之间转动连接关系的可靠性。并且，在采用上述 技术方案的情况下，通过使第三转动部510和第四转动部520的转动轴线位于第一屏幕支撑板210上或第一屏幕支撑板210背离第一壳体座310的一侧，能够在保证转动组件位于第一屏幕支撑板210朝向第一壳体座310的一侧的情况下，使第一屏幕支撑板210与第一壳体座310之间的间距相对更小，进一步减小整个折叠机构在基部410的厚度方向所占的空间大小。对应地，第二屏幕支撑板220与第二壳体座320之间亦可以通过上述转动组件形成较为稳定的转动连接关系。
具体地，通过对插块和插槽的形状和尺寸进行适配，可以保证二者之间能够形成转动配合关系；并且，可以使插槽为两侧开口式结构，从而能够自插槽的一侧将插块安装至插槽内，且可以借助第一壳体座310和第一壳体110等其他结构对插块和插槽之间的最大相对转动角度进行限制。另外，还可以通过在第一屏幕支撑板210沿第二转动部302的转动轴向相背的两端设置可拆卸限位结构等方式，对第一屏幕支撑板210和第一壳体座310在第二转动部302的转动轴向上的相对位置关系进行限制，防止二者在前述方向上产生相对窜动。
在本申请的另一实施例中，第四转动部520包括限位件和配合件，限位件和配合件围成插槽，配合件设有弧形配合面。在第二转动部302的转动轴向上，多个第四转动部520中的两个第四转动部520各自的限位部相对设置，至少两个第三转动部510限位设置在前述相对设置的两个限位件之间或之外。如图6所示，设置在第一屏幕支撑板210相背两端的两组第四转动部520各自的插槽均朝外设置，也即，两组第四转动部520的插槽相背设置，在这这种情况下，如图4所示，与前述两组第四转动部520配合的两组第三转动部510应当分别设置在两组第四转动部520的外侧。
在采用上述技术方案的情况下，借助两个第四转动部520中的限位件可以对至少两个第三转动部510进行限位，从而保证第三转动部510和第四转动部520能够在第二转动部302的转动轴向上形成限位配合关系，保证第一屏幕支撑板210和第一壳体座310在第二转动部302的转动轴向上形成稳定 的配合关系。
为了提升折叠机构的动作稳定性，可选地，第一壳体座310和/或第二壳体座320的数量为多个。可选地，第一壳体座310和第二壳体座320的数量相同，且均为多个，通过使多个第一壳体座310和多个第二壳体座320成组设置，可以进一步提升第一壳体110和第二壳体120之间的动作稳定性。如上所述，第一壳体座310可以与第一屏幕支撑板210转动连接，第二壳体座320与第二屏幕支撑板220转动连接，在第一壳体座310和第二壳体座320的数量均为多个的情况下，可以使至少一个第一壳体座310与第一屏幕支撑板210转动连接，且使至少一个第二壳体座320与第二屏幕支撑板220连接。更具体地，如图1和图6所示，可以使位于基部410相背两端的第一壳体座310均通过上述转动组件与第一屏幕支撑板210转动连接，其他的第一壳体座310则可以不再与第一屏幕支撑板210相互连接，从而在保证第一壳体座310和第一屏幕支撑板210之间具有较高转动配合稳定性的同时，还可以降低整个折叠机构的加工和组装难度。对应地，第二壳体座320亦可以如此，考虑文本简洁，此处不再重复。
可选地，如图6所示，折叠机构还可以包括第三屏幕支撑板230，第三屏幕支撑板230与同步组件相对设置，且第一屏幕支撑板210朝向第二屏幕支撑板220的一侧，以及第二屏幕支撑板220朝向第一屏幕支撑板210的一侧均设有避让缺口，在展开状态下，第三屏幕支撑板230容纳于两个避让缺口，且第三屏幕支撑板230背离基部410的第一表面与第一屏幕支撑板的第一表面平齐。
具体地，避让缺口的形状和尺寸可以对应于第三屏幕支撑板230的形状和尺寸对应设计，通过在同步组件所在的位置处对应设置第三屏幕支撑板230，使得第一屏幕支撑板210和第二屏幕支撑板220在相对基部410转动的过程中，能够通过各自的避让缺口避让同步组件，在这种情况下，如图8所示，在第一屏幕支撑板210和第二屏幕支撑板220之间的间距不变的情况下，可以进一步减小第一屏幕支撑板210和第二屏幕支撑板220与基部410之间 的间距，从而减小折叠机构的整体厚度，进而减小采用该折叠机构的电子设备的整体厚度。当然，需要说明的是，针对第一屏幕支撑板210和第二屏幕支撑板220对应于基部410上与第一壳体座310和第二壳体座320配合的位置处，亦可以根据实际情况对应设计，保证基部410上与第一壳体座310和第二壳体座320配合的部分处，不会对第一屏幕支撑板210和第二屏幕支撑板320的相对转动产生阻碍。
可选地，第三屏幕支撑板230可以固定在基部410上，在本申请的另一实施例中，第三屏幕支撑板230可以沿自身厚度方向活动连接在基部410上，具体地，第三屏幕支撑板230可以通过销钉活动地安装在基部410上，从而在折叠机构的工作过程中，使第三屏幕支撑板230可以相对基部410运动。
基于上述情况，在展开状态下，第三屏幕支撑板230沿自身厚度方向与基部410之间的间距为第一间距；在折叠状态下，第三屏幕支撑板230沿自身厚度方向与基部410之间的间距为第二间距，第二间距小于第一间距。通俗地说，在折叠机构自展开状态切换至折叠状态的过程中，第三屏幕支撑板230向靠近基部410的方向运动；在折叠机构自折叠状态切换至展开状态的过程中，第三屏幕支撑板230向远离基部410的方向运动。通过采用上述技术方案，可以进一步扩大处于折叠状态的折叠机构的容纳空间，从而进一步防止柔性显示屏因被折叠而产生折痕的问题。
另外，可以在第三屏幕支撑板230和基部410之间设置弹性件等，从而在柔性显示屏被折叠的过程中，可以使柔性显示屏挤压第三屏幕支撑板230向靠近基部410的方向运动，而在柔性显示屏逐渐展平的过程中，弹性件可以通过自身弹力驱动第三屏幕支撑板230复位。或者，还可以在第三屏幕支撑板230和基部410之间设置动力驱动件等方式，动力驱动件可以驱动第三屏幕支撑板230和基部410相向或相背运动。
另外，如上所述，第一屏幕支撑板210在随第一壳体座310相对基部410转动的过程中，第一屏幕支撑板210与第一壳体座310之间亦可以产生相对转动。更具体地，在第一屏幕支撑板210向靠近第一壳体座310转动的过程 中，可以由电子设备中的柔性显示屏提升驱动力；而针对第一屏幕支撑板210向背离第一壳体座310转动的过程，可以通过在折叠机构中设置弹性件等结构的方式，借助弹性复位作用力，使第一屏幕支撑板210被驱动，以在第一壳体座310和第二壳体座320转动至展开状态时，使第一屏幕支撑板210可以与第一壳体110的屏幕支撑面平齐，以共同为柔性显示屏提供支撑作用。在本申请的另一实施例中，还可以在第一屏幕支撑板210和第一壳体110之间设置动力驱动装置，如电动机等，借助动力驱动装置亦可以驱动第一屏幕支撑板210与第一壳体座310相向或相背转动。当然，第二壳体座320与第二屏幕支撑板220之间亦可以参考上述任一技术方案进行设计和生产。
基于上述实施例，可选地，如图8和图9所示，第一屏幕支撑板210和第二屏幕支撑板220靠近第三屏幕支撑板230的一侧均设有第一搭接边沿，第三屏幕支撑板230的相背两侧均设有第二搭接边沿，在展开状态下，各第二搭接边沿均搭接于对应的第一搭接边沿上。具体地，第一搭接边沿和第二搭接边沿的形状和尺寸可以相互适配，具体地，第一搭接边沿和第二搭接边沿均可以为台阶状结构件，以提升第三屏幕支撑板230搭接在第一屏幕支撑板210和第二屏幕支撑板220上的稳定性。
在采用上述技术方案的情况下，在展开状态下，第三屏幕支撑板230可以搭接在第一屏幕支撑板210和第二屏幕支撑板220上。在这种情况下，第一屏幕支撑板210和第二屏幕支撑板220亦可以为第三屏幕支撑板230相对基部410运动提供驱动作用力，进而，随折叠机构的运动，在第一屏幕支撑板210和第二屏幕支撑板220能够自动转动的情况下，可以无需为第三屏幕支撑板230配设驱动作用件等，一方面减少折叠机构内零部件的数量，另一方面可以提升折叠机构的组装效率，降低生产成本。
为了提升整个折叠机构的结构紧凑性，如图4和图5所示，基部410上可以设置有容纳槽411，容纳槽411内设置有第一转动部412，且通过使第一壳体座310的第二转动部302的至少一部分，以及第二壳体座320的第二转动部302的至少一部分容纳与容纳槽411的方式，可以减少折叠机构在基部 410厚度方向上所占的空间，进而降低整个电子设备的厚度，提升产品综合性能。需要说明的是，基部410的厚度方向具体可以为垂直于图4中方向A和图8中方向B的方向。
具体地，可以通过扩大容纳槽411的尺寸，使多个第一转动部412均设置在一个容纳槽411中，在本申请的另一实施例中，为了提升第一壳体座310和第二壳体座320与基部410之间的配合稳定性，防止第一壳体座310和第二壳体座320相互干扰，容纳槽411可以对应第一转动部412的数量对应设置有多个。当然，为了保证至少一部分容纳于容纳槽411内的第二转动部302能够正常地与第一转动部412相对配合，在设计和加工过程中，可以使第一转动部412和第二转动部302的具体结构与容纳槽411的结构和尺寸等参数互相适配。
进一步地，为了最大化地提升位于容纳槽411内的第一转动部412和第二转动部302之间转动配合关系的可靠性，可选地，如图4和图5所示，第一转动部412和第二转动部302中的一者包括滑块，另一者设有滑槽，滑槽和滑块滑动配合，滑槽和滑块之间的配合面积相对较大，且可以最大化地利用容纳槽411内的空间。当然，滑槽和滑块均为弧形结构，以保证第一壳体座310和第二壳体座320均能够借助滑动配合的滑槽和滑块形成转动配合关系。
为了进一步提升第一壳体座310和第二壳体座320与基部410之间转动配合关系的稳定性，如图5所示，容纳槽411的相背两侧均设置有第一转动部412，对应地，第一壳体座310和第二壳体座320的相背两侧均设置有第二转动部302，以第一壳体座310为例，在其相背两侧的两个第二转动部302与一个容纳槽411内的两个第一转动部412一一对应配合的情况下，可以进一步防止第一壳体座310偏离自身转动轴线相对基部410转动，从而提升第一壳体座310与基部410之间转动配合关系的稳定性。相对应地，在采用上述技术方案的情况下，第二壳体座320与基部410之间的转动配合关系也相对更稳定。
在第一转动部412设置在容纳槽411内的情况下，为了保证第一转动部412和第二转动部302之间具有较好的转动配合关系的同时，尽量减小基部410的宽度(即基部410沿图8中方向B的尺寸)，可选地，在第二转动部302的转动轴向上，可以使多个第一转动部412间隔设置或错位设置。也就是说，可以使多个第一转动部412沿第二转动部302的转动轴向分布，且任意相邻的两个第一转动部412之间均具有预设尺寸的间隔。或者，在多个第一转动部412沿第二转动部302的转动轴向分布的情况下，可以使多个第一转动部412两两成组，任一组内的两个第一转动部412在第二转动部302的转动轴向上相邻设置，也即，组内的两个第一转动部412之间在第二转动部302的转动轴向上没有间隔，采用这种技术方案，一方面亦可以实现上述技术目的，另一方面，由于组内的两个第一转动部412之间的位置较为临近，通过使任一组内的两个第一转动部412分别与第一壳体座310和第二壳体座320对应配合，还可以在一定程度上提升第一壳体座310和第二壳体座320之间的对称性，进而提升折叠机构的整体性能。
进一步地，如上所述，折叠机构可以应用在支架机构中，基于此，本申请实施例还提供一种支架结构，支架结构包括第一壳体110和第二壳体120，在组装支架结构的过程中，第一壳体座310与第一壳体110固定连接，第二壳体座320与第二壳体120固定连接。在支架结构展开和折叠的过程中，第一壳体110和第二壳体120可以分别带动第一壳体座310和第二壳体座320相对运动，使第一壳体座310和第二壳体座320相对转动。
具体地，第一壳体座310和第一壳体110之间可以通过粘接、铆接、卡接或螺纹连接等方式相互固定。为了提升连接可靠性，且降低拆装难度，可以在第一壳体座310和第一壳体110上形成贯穿孔或螺纹孔，这使得第一壳体座310和第一壳体110之间能够通过螺纹连接件实现固定连接目的。对应地，第二壳体座320和第二壳体120之间亦可以通过螺纹连接件相互固定。
另外，如上所述，第一屏幕支撑板210与第一壳体座310之间可以相对转动，因此，为了防止第一壳体110和第一壳体座310对第一屏幕支撑板210 的转动动作产生阻碍，可选地，第一壳体110和第一壳体座310朝向第一屏幕支撑板210的一侧均设有倾斜避让支撑面，在这种情况下，一方面可以保证第一屏幕支撑板210具备相对第一壳体座310(和第一壳体110)转动的能力，另一方面，倾斜避让支撑面还可以为第一屏幕支撑面提供较好的支撑效果，进而可以保证柔性显示屏可以被较好地承托。
对应地，在第二屏幕支撑板220与第二壳体座320转动配合的情况下，第二壳体120和第二壳体座320朝向第二屏幕支撑板220的一侧亦可以对应设置有倾斜避让支撑面，从而在折叠状态下，可以使第一屏幕支撑板210和第二屏幕支撑板220分别支撑在对应的倾斜避让支撑面上，提升折叠机构的动作稳定性。
基于上述实施例提供的支架结构，进一步地，本申请实施例还提供一种电子设备，电子设备包括第一显示模组和上述支架结构，其中，第一显示模组包括柔性显示屏610，柔性显示屏610安装在支架结构上，且柔性显示屏610能够支撑在第一壳体110、第二壳体120、第一屏幕支撑板210和第二屏幕支撑板220上，保证支架结构可以为第一显示模组中的柔性显示屏610提供较好的承托效果。
并且，上述电子设备具备折叠状态和展开状态，且通过在折叠状态下，使第一屏幕支撑板210和第二屏幕支撑板220各自的第一侧边203之间的间距，大于第一屏幕支撑板210和第二屏幕支撑板220各自的第二侧边之间的间距，使得电子设备可以为自身的柔性显示屏610的中间部分提供较大的、扩口状的容纳空间，这可以尽量防止柔性显示屏610的中间部分在被折叠的过程中产生折痕，提升其使用寿命。
为了进一步提升电子设备的易用性，可选地，第一壳体110背离第一显示模组的一侧设有第二显示模组，第二显示模组的尺寸等参数可以根据实际情况选定。在采用上述技术方案的情况下，第一壳体110的相背两侧均设有显示模组。通过使电子设备处于折叠状态，一方面便于用户携带，且用户可以借助第二显示模组进行人机交互，而在用户存在浏览视频等需求的情况下， 则可以通过展开电子设备的方式，使用显示面积更大的第一显示模组，提升视听体验等。当然，上述场景仅为举例说明，在软件等条件被满足的情况下，用户还可以同时使用第一显示模组和第二显示模组等。换句话说，在电子设备的使用过程中，用户可以根据自身需求灵活选择使用第一显示模组和/或第二显示模组，此处不作限定。
本申请实施例公开的电子设备可以为智能手机、平板电脑、电子书阅读器或可穿戴设备。当然，该电子设备也可以是其他设备，本申请实施例对此不做限制。
本申请上文实施例中重点描述的是各个实施例之间的不同，各个实施例之间不同的优化特征只要不矛盾，均可以组合形成更优的实施例，考虑到行文简洁，在此则不再赘述。
以上所述仅为本申请的实施例而已，并不用于限制本申请。对于本领域技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本申请的权利要求范围之内。

Claims (21)

  1. 一种折叠机构，包括第一屏幕支撑板、第二屏幕支撑板、第一壳体座、第二壳体座、基部和同步组件，其中：
    所述第一壳体座设于所述第一屏幕支撑板，所述第二壳体座设于所述第二屏幕支撑板；
    所述基部设有多个第一转动部，所述第一壳体座和所述第二壳体座均通过各自的第二转动部与多个所述第一转动部一一对应地转动连接，所述折叠机构具有展开状态和折叠状态；
    所述同步组件包括第一连接轴、第二连接轴、第一同步摆臂、第二同步摆臂和同步连接件，
    所述第一同步摆臂与所述第一连接轴在所述第二转动部的转动方向上限位配合，且所述第一同步摆臂与所述第一壳体座配合；
    所述第二同步摆臂与所述第二连接轴在所述第二转动部的转动方向上限位配合，且所述第二同步摆臂与所述第二壳体座配合；
    所述第一同步摆臂设有螺旋延伸的第一滑槽，所述第二同步摆臂设有螺旋延伸的第二滑槽，所述同步连接件设有第一滑块和第二滑块，所述第一滑块与所述第一滑槽滑动配合，所述第二滑块与所述第二滑槽配合，所述第一壳体座和所述第二壳体座通过所述同步组件同步转动。
  2. 根据权利要求1所述的折叠机构，其中，所述同步组件还包括限位座，所述限位座与所述基部固定，所述限位座设有限位孔，所述同步连接件的一端伸入所述限位孔内，且所述同步连接件和所述限位座在所述第二转动部的转动方向上限位配合。
  3. 根据权利要求2所述的折叠机构，其中，所述同步连接件的相背两端均设有所述限位座，各所述限位座均设有两个配合孔，所述第一连接轴和所述第二连接轴各自的一端一一对应地插接配合于一个所述限位座的两个配合 孔中，且在所述第二转动部的转动轴向上，所述第一连接轴、所述第二连接轴和两个所述限位座限位配合。
  4. 根据权利要求1所述的折叠机构，其中，所述第一同步摆臂设有第一凸轮套，所述第一凸轮套设有所述第一滑槽，所述折叠机构还包括第二凸轮套和弹性件，所述第一连接轴上套设有所述第一凸轮套和所述第二凸轮套，所述第二凸轮套与所述第一连接轴在所述第二转动部的转动方向上转动配合，在所述第一凸轮套和所述第二凸轮套相对转动的情况下，所述弹性件处于拉伸状态和收缩状态。
  5. 根据权利要求4所述的折叠机构，其中，所述折叠机构还包括沿所述第二转动部的转动轴向相对且固定的两个限位座，所述第一凸轮套、所述第二凸轮套和所述弹性件均设置于两个所述限位座之间，且所述弹性件设置于所述第二凸轮套背离所述第一凸轮套的一侧。
  6. 根据权利要求4所述的折叠机构，其中，所述第二同步摆臂设有第三凸轮套，所述第三凸轮套设有所述第二滑槽，所述第一凸轮套和所述第三凸轮套均对应配设有所述第二凸轮套和所述弹性件。
  7. 根据权利要求1所述的折叠机构，其中，所述第一屏幕支撑板与所述第一壳体座转动配合，且所述第二屏幕支撑板与所述第二壳体座转动配合；
    在所述展开状态下，所述第一屏幕支撑板和所述第二屏幕支撑板各自的第一侧边均位于各自的第二侧边之间，所述第一屏幕支撑板和第二屏幕支撑板各自背离所述基部的第一表面平齐设置；
    在所述折叠状态下，所述第一屏幕支撑板和所述第二屏幕支撑板各自的所述第一侧边之间的间距，大于所述第一屏幕支撑板和所述第二屏幕支撑板各自的所述第二侧边之间的间距。
  8. 根据权利要求7所述的折叠机构，其中，所述折叠机构还包括盖体， 所述盖体固定连接于所述基部背离所述第一屏幕支撑板的一侧，在所述折叠状态下，所述盖体在所述第二转动部转动方向所在的平面内的投影覆盖所述第一壳体座、所述第二壳体座和所述基部。
  9. 根据权利要求8所述的折叠机构，其中，所述第一壳体座和/或所述第二壳体座包括避让结构，所述避让结构设有避让凹槽，在所述展开状态下，所述盖体的侧边容纳至所述避让凹槽中。
  10. 根据权利要求9所述的折叠机构，其中，所述第一屏幕支撑板和/或所述第二屏幕支撑板设有容纳沉槽，在所述折叠状态下，所述避让结构的至少一部分容纳于所述容纳沉槽内。
  11. 根据权利要求7所述的折叠机构，其中，所述折叠机构包括转动组件，所述第一屏幕支撑板通过多个转动组件转动连接于所述第一壳体座，所述转动组件包括第三转动部和第四转动部，所述第三转动部和所述第四转动部中的一者连接于所述第一壳体座，另一者连接于所述第一屏幕支撑板，所述第三转动部包括插块，所述第四转动部设有插槽，所述插块和所述插槽均设有弧形配合面，所述插块和所述插槽通过所述弧形配合面转动配合。
  12. 根据权利要求11所述的折叠机构，其中，所述第四转动部包括限位件和配合件，所述限位件和所述配合件围成所述插槽，所述配合件设有所述弧形配合面；
    在所述第二转动部的转动轴线所在的方向上，多个所述第四转动部中的两个所述第四转动部各自的所述限位件相对设置，且多个所述第三转动部限位设置于两个所述限位件之间。
  13. 根据权利要求7所述的折叠机构，其中，所述第一壳体座和/或所述第二壳体座的数量为多个，且至少一个所述第一壳体座与所述第一屏幕支撑板转动连接，至少一个所述第二壳体座与所述第二屏幕支撑板转动连接。
  14. 根据权利要求7所述的折叠机构，其中，所述折叠机构还包括第三屏幕支撑板，所述第三屏幕支撑板与所述同步组件相对设置，所述第一屏幕支撑板朝向所述第二屏幕支撑板的一侧，以及所述第二屏幕支撑板朝向所述第一屏幕支撑板的一侧均设有避让缺口；
    在所述展开状态下，所述第三屏幕支撑板容纳于两个所述避让缺口，且所述第三屏幕支撑板背离所述基部的第一表面与所述第一屏幕支撑板的第一表面平齐。
  15. 根据权利要求1所述的折叠机构，其中，所述基部上设有容纳槽，所述容纳槽内设置有所述第一转动部，所述第一壳体座和所述第二壳体座的第二转动部的至少一部分容纳于所述容纳槽。
  16. 根据权利要求15所述的折叠机构，其中，所述第一转动部和所述第二转动部中的一者包括滑块，另一者设有滑槽，所述滑槽和所述滑块滑动配合。
  17. 根据权利要求16所述的折叠机构，其中，所述容纳槽的相对两侧均设置有所述第一转动部，所述第一壳体座和所述第二壳体座的相背两侧均设置有所述第二转动部。
  18. 根据权利要求1所述的折叠机构，其中，在所述第二转动部的转动轴线所在的方向上，多个所述第一转动部间隔设置或错位设置。
  19. 一种支架结构，包括第一壳体、第二壳体和权利要求1-18任意一项所述的折叠机构，所述第一壳体座与所述第一壳体固定连接，所述第二壳体座与所述第二壳体固定连接。
  20. 根据权利要求19所述的支架结构，其中，所述第一屏幕支撑板与所述第一壳体座转动配合，且所述第二屏幕支撑板与所述第二壳体座转动配合；
    所述第一壳体和所述第一壳体座朝向所述第一屏幕支撑板的一侧均设有倾斜避让支撑面，所述第二壳体和所述第二壳体座朝向所述第二屏幕支撑板的一侧均设有倾斜避让支撑面；
    在所述展开状态下，所述第一屏幕支撑板和所述第二屏幕支撑板各自的第一侧边均位于各自的第二侧边之间，所述第一屏幕支撑板和第二屏幕支撑板各自背离所述基部的第一表面平齐设置；
    在所述折叠状态下，所述第一屏幕支撑板和所述第二屏幕支撑板各自的所述第一侧边之间的间距，大于所述第一屏幕支撑板和所述第二屏幕支撑板各自的所述第二侧边之间的间距，所述第一屏幕支撑板和所述第二屏幕支撑板分别支撑于对应的所述倾斜避让支撑面上。
  21. 一种电子设备，包括第一显示模组和权利要求19或20所述的支架结构，所述第一显示模组包括柔性显示屏，所述第一显示模组安装于所述支架结构，且所述第一显示模组可支撑于所述第一壳体、第二壳体、第一屏幕支撑板和第二屏幕支撑板。
PCT/CN2022/080908 2021-03-19 2022-03-15 折叠机构、支架结构和电子设备 WO2022194141A1 (zh)

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