Folding electronic device
By combining the Stephenson II six-bar linkage structure, which replaces rotation with sliding, and the torque module, the structural limitations of Watt's six-bar linkage folding device are solved, achieving more flexible and efficient folding and unfolding actions, and enhancing the ease of use and stability of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SYNCMOLD ENTERPRISE CORP
- Filing Date
- 2023-02-16
- Publication Date
- 2026-07-07
AI Technical Summary
Existing Watt's six-bar linkage folding devices have limitations in structure and operation, making it difficult to achieve more flexible and efficient folding and unfolding actions.
The system employs a sliding-to-rotation six-bar linkage structure, combining a torque module and a synchronization module. The panel unfolds and folds through a slider and an arc-shaped track. The sliding cooperation between the arc-shaped slider and the linkage enables the panel to change its angle by 180 degrees. The torque module and synchronization module ensure the synchronization of the movements.
It achieves more flexible and efficient folding and unfolding actions, improves the ease of use and stability of the device, strengthens the support structure of the panel, and adapts to the usage needs in different states.
Smart Images

Figure CN117628046B_ABST
Abstract
Description
Technical Field
[0001] This application provides a foldable electronic device, and more particularly a foldable electronic device with a flexible screen. Background Technology
[0002] CN112333308 discloses a folding device, including a connecting mechanism, two rotating mechanisms rotatably connected to opposite sides of the connecting mechanism, and a support mechanism connected between the connecting mechanism and each rotating mechanism. The support mechanism includes a support member and a connecting rod movably connected to the support member. One end of the connecting rod is rotatably connected to the connecting mechanism, and the other end is slidably connected to the corresponding rotating mechanism of the connecting mechanism. The support member includes a support plate and a rotating part disposed on the side of the support plate away from the connecting mechanism. The rotating mechanism includes a fixed bracket and a rotating arm rotatably connected to the fixed bracket. The end of the rotating arm away from the fixed bracket is rotatably connected to the connecting mechanism. The rotating part and the fixed bracket are rotatably connected through an arc-shaped groove and an arc-shaped rail. The fixed bracket has a guide groove for the connecting rod to slide within. The rotating mechanism rotates relative to the connecting mechanism to drive the connecting rod to slide relative to the rotating mechanism and rotate relative to the connecting mechanism. The rotating mechanism and the connecting rod together drive the two support members to be relatively flattened or folded.
[0003] The folding device disclosed in CN112333308 is of the Watt six-bar type. This application provides another folding electronic device that is different from the Watt six-bar type. Summary of the Invention
[0004] This application provides a foldable electronic device, comprising: a central base including a body portion, a track portion, at least one first inner arc-shaped slider and at least one second inner arc-shaped slider, the track portion extending outward from the body portion, the first inner arc-shaped slider and the second inner arc-shaped slider being formed on the body portion at intervals from each other; a torque module disposed on the track portion; a first wing member including at least one first inner arc-shaped slide rail, a first inner pivot portion and a first outer pivot portion, the first inner arc-shaped slider slidingly disposed on the first inner arc-shaped slide rail, thereby the first wing member being able to pivot relative to the body portion about a first inner virtual axis; and a first transmission member, including... The system comprises: a first rod body pivotally connected to the torque module and the main body along a first axis; a first panel body including a first support member capable of linear sliding relative to the first transmission member, and including a first pivot portion, a first outer arc-shaped slide rail, and a first receiving groove; the first pivot portion being pivotally connected to the first inner pivot portion and jointly defining a first inner pivot axis; the first support member being capable of rotating relative to the first wing member about the first inner pivot axis; a first connecting rod housed in the first receiving groove and pivotally connected to the first outer pivot portion; a first water droplet plate pivotally supported on the first support member and the first connecting rod; and a second wing member including at least a second inner arc-shaped slide rail, a... A second inner pivot portion and a second outer pivot portion are provided. The second inner arc-shaped slider is slidably disposed on the second inner arc-shaped slide rail, thereby enabling the second wing member to pivot relative to the main body about a second inner virtual axis. A second transmission member includes a second rod body, which is pivotally connected to the torque module and the main body along a second axis and spaced apart from the first rod body. A second panel body includes a second support member, which can slide linearly relative to the second transmission member, and includes a second pivot portion, a second outer arc-shaped slide rail, and a second receiving groove. The second pivot portion is pivotally connected to the second inner pivot portion and together define a second inner pivot axis. The second support member can pivot about the second inner axis. The axis rotates relative to the second wing member; a second connecting rod is accommodated in the second receiving groove and pivotally connected to the second outer pivot portion; a second water drop plate is pivotally supported by the second supporting member and the second connecting rod; a synchronization module includes a synchronization slider body slidably disposed between the first transmission member and the second transmission member, and the first transmission member and the second transmission member are respectively connected to the synchronization slider body, and the synchronization slider body can drive the first transmission member and the second transmission member to rotate synchronously in opposite directions when sliding; and a flexible screen is disposed on the first panel body, the second panel body, the first water drop plate, the second water drop plate and the central base, and includes a bendable area;The first panel body and the second panel body can switch between an unfolded state and a folded state. When the first panel body and the second panel body are in the unfolded state, the flexible screen is flat, and the first wing, the second wing, the first water droplet plate, the second water droplet plate, and the central base jointly support the bendable area. When the first panel body and the second panel body are in the folded state, the bendable area of the flexible screen flexes, and the first wing, the second wing, the first water droplet plate, the second water droplet plate, and the central base jointly define an accommodating space to accommodate the bendable area.
[0005] In the aforementioned foldable electronic device, the main body, the first wing, the first transmission member, the first support member, the first link, and the first water drop plate essentially constitute a Stephenson II type six-link with sliding instead of rotation, and wherein the main body, the second wing, the second transmission member, the second support member, the second link, and the second water drop plate essentially constitute another Stephenson II type six-link with sliding instead of rotation.
[0006] In the aforementioned foldable electronic device, the first teardrop plate includes a first large arc-shaped slider and a first small arc-shaped slider. The first small arc-shaped slider slides on the first outer arc-shaped slide rail. The first connecting rod includes a first arc-shaped groove and a first pivot portion. The first large arc-shaped slider slides on the first arc-shaped groove, and the first pivot portion is pivotally connected to the first outer pivot portion. The second teardrop plate includes a second large arc-shaped slider and a second small arc-shaped slider. The second small arc-shaped slider slides on the second outer arc-shaped slide rail. The second connecting rod includes a second arc-shaped groove and a second pivot portion. The second large arc-shaped slider slides on the second arc-shaped groove, and the second pivot portion is pivotally connected to the second outer pivot portion.
[0007] In the aforementioned foldable electronic device, the first transmission member further includes a first bending plate and a first straight slider. The first bending plate extends outward from the first rod in a radial direction along the first axis, and the first straight slider extends outward from the first bending plate in a direction parallel to the first axis. The first support member further includes a first straight groove that extends substantially perpendicular to the first axis, and the first straight slider slides in the first straight groove. The second transmission member further includes a second bending plate and a second straight slider. The second bending plate extends outward from the second rod in a radial direction along the second axis, and the second straight slider extends outward from the second bending plate in a direction parallel to the second axis. The second support member further includes a second straight groove that extends substantially perpendicular to the second axis, and the second straight slider slides in the second straight groove.
[0008] In the aforementioned foldable electronic device, the first outer pivot and the first rotating shaft jointly define a first outer pivot axis. The first connecting rod rotates relative to the first wing member on the first outer pivot axis. The first outer arc-shaped slide defines a first outer small virtual axis, and the first arc-shaped groove defines a first outer large virtual axis. The first water droplet plate rotates relative to the first carrier member and the first connecting rod on the first outer small virtual axis and the first outer large virtual axis, respectively. The second outer pivot and the second rotating shaft jointly define a second outer pivot axis, and the second connecting rod rotates relative to the second wing member on the second outer pivot axis. The second outer arc-shaped slide defines a second outer small virtual axis, and the second arc-shaped chute defines a second outer large virtual axis. The second water droplet plate rotates relative to the second carrier and the second connecting rod on the second outer small virtual axis and the second outer large virtual axis, respectively. The first axis, the first inner virtual axis, the first inner pivot axis, the first outer pivot axis, the first outer small virtual axis, the first outer large virtual axis, the second axis, the second inner virtual axis, the second inner pivot axis, the second outer pivot axis, the second outer small virtual axis, and the second outer large virtual axis are parallel to each other and do not overlap.
[0009] In the aforementioned foldable electronic device, the first receiving groove is formed through the radial direction of the first axis, and the second receiving groove is formed through the radial direction of the second axis. A first distance is defined between the first axis and the first outer virtual axis, and a second distance is defined between the second axis and the second outer virtual axis. When the first support member and the second support member change from the unfolded state to the folded state, the first arc-shaped slide and the second arc-shaped slide move linearly outward in the first receiving groove and the second receiving groove, respectively. The first distance and the second distance increase, thereby moving the first water drop plate and the second water drop plate away from the central base.
[0010] As described above in the foldable electronic device, the torque module includes a mounting base, a first shaft hole and a second shaft hole. The mounting base has a first wing and a second wing. The first shaft hole is formed in the first wing along the first axis, and the second shaft hole is formed in the second wing along the second axis.
[0011] In the aforementioned foldable electronic device, the first rod has a first rod body, a first stop portion, and a first extension post. The first stop portion is formed at one end of the first rod body and abuts against the first wing portion. The first extension post extends outward from the first stop portion and passes through the first shaft hole. The cross-sectional area of the first stop portion is larger than the cross-sectional area of the first extension post. The second rod has a second rod body, a second stop portion, and a second extension post. The second stop portion is formed at one end of the second rod body and abuts against the second wing portion. The second extension post extends outward from the second stop portion and passes through the second shaft hole. The cross-sectional area of the second stop portion is larger than the cross-sectional area of the second extension post.
[0012] As described above in the foldable electronic device, the torque module further includes a first stop washer, a plurality of first bowl-shaped washers, a second stop washer, and a plurality of second bowl-shaped washers. The first stop washer is fitted onto the first extension post and moves in tandem with the first extension post. The first bowl-shaped washer is fitted onto the first extension post and constantly provides a first elastic force. The first elastic force tends to cause the first stop washer to abut against the first wing. The second stop washer is fitted onto the second extension post and moves in tandem with the second extension post. The second bowl-shaped washer is fitted onto the second extension post and constantly provides a second elastic force. The second elastic force tends to cause the second stop washer to abut against the second wing.
[0013] In the aforementioned foldable electronic device, when the first panel body and the second panel body are in the unfolded state, the first support member and the second support member are substantially 180 degrees apart. When the first panel body and the second panel body are in the folded state, the first support member and the second support member are substantially 0 degrees apart. When the first panel body and the second panel body switch between the unfolded state and the folded state, the first transmission member and the second transmission member reverse synchronously, causing the first stop part and the first stop washer to rub against the opposite sides of the first wing at the same time, and causing the second stop part and the second stop washer to rub against the opposite sides of the second wing at the same time. In this way, the first support member and the second support member can stop and be positioned at an angle between 0 degrees and 180 degrees.
[0014] In the aforementioned foldable electronic device, the synchronization module further includes a first spiral bump, a second spiral bump, a first spiral groove, and a second spiral groove, wherein the first spiral bump is matchedly accommodated in the first spiral groove, and the second spiral bump is matchedly accommodated in the second spiral groove.
[0015] In the aforementioned foldable electronic device, the first spiral groove is recessed in the first rod body along a first spiral direction, the second spiral groove is recessed in the second rod body along a second spiral direction, and the first spiral protrusion and the second spiral protrusion are respectively formed on opposite sides of the synchronous slider body.
[0016] In the aforementioned foldable electronic device, the first spiral direction is opposite to the second spiral direction.
[0017] In the aforementioned foldable electronic device, the central base also includes a track groove that extends through the track portion, and the synchronization module also includes a limiting rib formed in the synchronization slider body, the limiting rib being slidably accommodated in the track groove.
[0018] In the aforementioned foldable electronic device, the first wing also includes a first top surface, and the second wing also includes a second top surface. When the first panel body and the second panel body are in the unfolded state, the first water drop plate, the second water drop plate, the first top surface, the second top surface and the central base are coplanar.
[0019] In the aforementioned foldable electronic device, the first wing also includes a first arc surface that is angularly adjacent to the first top surface and bends in a direction away from the first axis. The second wing also includes a second arc surface that is angularly adjacent to the second top surface and bends in a direction away from the second axis. When the first panel body and the second panel body are in the folded state, the first water drop plate and the second water drop plate are close to each other at one end of the first support member and the second support member, respectively. The first water drop plate and the second water drop plate are obliquely intersecting the central base, and together with the first arc surface, the second arc surface and the central base, they surround and define the accommodating space in a teardrop shape. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the foldable electronic device of this application in its unfolded state.
[0021] Figure 2 This is an exploded view of the foldable electronic device of this application in its unfolded state.
[0022] Figure 3 This is an exploded view of some components of the foldable electronic device of this application.
[0023] Figure 4 and Figure 5 This is an exploded view of the main body, first wing, first link, first support member, second wing, second link, and second support member of the foldable electronic device of this application from different perspectives.
[0024] Figure 6 This is an exploded view of the main body, first transmission component, second transmission component, torque module, and synchronization module of the foldable electronic device of this application.
[0025] Figure 7 This is a top view of the first transmission component, the second transmission component, and the synchronization module of the foldable electronic device of this application.
[0026] Figure 8 This is a schematic diagram of the first and second water droplet plates of the foldable electronic device of this application.
[0027] Figure 9 This is a partial top view of the foldable electronic device of this application in its unfolded state.
[0028] Figure 10 This is a top view of some components of the foldable electronic device of this application in its unfolded state.
[0029] Figure 11 For the foldable electronic device of this application Figure 9 A cross-sectional diagram of the AA section.
[0030] Figure 12 For the foldable electronic device of this application Figure 9 A cross-sectional diagram of the BB section.
[0031] Figure 13 For the foldable electronic device of this application Figure 9 A cross-sectional diagram of the CC section.
[0032] Figure 14 This is a schematic diagram of the foldable electronic device of this application in its folded state.
[0033] Figure 15 For the foldable electronic device of this application Figure 14 A cross-sectional schematic diagram of the DD section.
[0034] Figure 16 For the foldable electronic device of this application Figure 14 A cross-sectional schematic diagram of the EE section.
[0035] Figure 17 This is a top view of some components of the foldable electronic device of this application in its folded state.
[0036] Figure 18 This is a comparative analysis diagram of the foldable electronic device of this application, which is an improvement on the prior art.
[0037] Explanation of main component symbols
[0038] 1000 Foldable Electronic Device 9 Second Panel Body
[0039] 1. Central base 91. Second bearing component
[0040] 11 Main Body 911 Second Bearing
[0041] 111 Upper surface 912 Second pivot part
[0042] 112 shaft hole 913 second outer arc slide
[0043] 12 Track Section 914 Second Receiving Slot
[0044] 13 First inner arc-shaped slider 915 Second straight slide groove
[0045] 14 Second inner arc-shaped slider 92 Second panel housing
[0046] 15 Track Slot A Second Link
[0047] 16 Top Plate A1 Second Arc-shaped Slide
[0048] 17. Outer shell A2 second shaft rotating part
[0049] 2 First Wing B Second Water Drop Plate
[0050] 21 First wing body B1 Second large arc-shaped slider
[0051] 22 First inner arc-shaped slide B2 Second small arc-shaped slider
[0052] 23 First Inner Pivot Connection C Torque Module
[0053] 24 First outer pivot C1 fixing seat
[0054] 25 First top surface C11 seat body
[0055] 26 First Arc Surface C12 First Wing
[0056] 3 First transmission component C13 Second wing
[0057] 31 First rod body C2 First shaft hole
[0058] 311 First rod body C3 Second shaft hole
[0059] 312 First stop part C4 First nut
[0060] 313 First extension post C5 Second nut
[0061] 315 First locking post C6 First stop washer
[0062] 32 First Bending Plate C61 First Through Hole
[0063] 33 First straight slider C7 First bowl-shaped washer
[0064] 4 First panel body C8 Second stop washer
[0065] 41 First bearing member C81 Second through hole
[0066] 411 First carrier C9 Second bowl-shaped washer
[0067] 412 First Pivot Section D Synchronization Module
[0068] 413 First outer arc-shaped slide D1 synchronous slider body
[0069] 414 First receiving groove D2 limiting rib
[0070] 415 First straight groove D3 First spiral protrusion
[0071] 42 First panel housing D4 Second spiral protrusion
[0072] 5 First connecting rod D5 First helical groove
[0073] 51 First arc-shaped groove D6 Second spiral groove
[0074] 52 First Axis Rotating Part E Flexible Screen
[0075] 6. First water droplet plate E1 bendable area
[0076] 61 First large arc-shaped slider H1 First spiral direction
[0077] 62 First small arc-shaped slider H2 Second spiral direction
[0078] 7 Second wing member L1, L1' first distance
[0079] 71 Second wing body L2, L2' second distance
[0080] 72 Second inner arc-shaped slide PXI1 First inner pivot axis
[0081] 73 Second Inner Pivot Connection PXI2 Second Inner Pivot Axis
[0082] 74 Second outer pivot joint PXO1 First outer pivot axis
[0083] 75 Second top surface PXO2 second outer pivot axis
[0084] 76 Second arc surface S accommodating space
[0085] 8. Second transmission component VXI1 first inner virtual axis
[0086] 81 Second shaft VXI2 Second inner virtual axis
[0087] 811 Second rod body VXS1 First outer small virtual axis
[0088] 812 Second Stop Part VXB1 First Outer Virtual Axis
[0089] 813 Second Extension Column VXS2 Second Outer Small Virtual Axis
[0090] 815 Second Locking Column VXB2 Second External Virtual Axis
[0091] 82 Second Bending Plate X1 First Axis
[0092] 83 Second straight slider X2 Second axis. Detailed Implementation
[0093] Please see Figure 1 , Figure 2 and Figure 3 The foldable electronic device 1000 of this application includes a central base 1, a first wing 2, a first transmission component 3, a first panel body 4, a first connecting rod 5, a first water droplet plate 6, a second wing 7, a second transmission component 8, a second panel body 9, a second connecting rod 1, a second water droplet plate 1, a torque module 3, a synchronization module 4, and a flexible screen 8. The first wing 2 is pivotally connected to the central base 1, the first transmission component 3 connects the central base 1 and the torque module 3, the first panel body 4 is connected to the first wing 2, the first connecting rod 5 is pivotally connected to the first wing 2, and the first water droplet plate 1... 6 connects the first panel body 4 and the first connecting rod 5. The second wing 7 is pivotally connected to the central base 1. The second transmission component 8 connects the central base 1 and the torque module C. The second panel body 9 connects to the second wing 7. The second connecting rod A is pivotally connected to the second wing 7. The second water drop plate B connects the second panel body 9 and the second connecting rod A. The torque module C is set on the central base 1. The synchronization module D is slidably set between the first transmission component 3 and the second transmission component 8. The flexible screen E is set on the first wing 2, the first panel body 4, the first water drop plate 6, the second wing 7, the second panel body 9 and the second water drop plate B. The structure of each component and their interconnections are described in detail below. Some of the diagrams depict parallel, non-overlapping first inner pivot axis PXI1, second inner pivot axis PXI2, first outer pivot axis PXO1, second outer pivot axis PXO2, first inner virtual axis VXI1, second inner virtual axis VXI2, first outer small virtual axis VXS1, first outer large virtual axis VXB1, second outer small virtual axis VXS2, second outer large virtual axis VXB2, first axis X1, and second axis X2. It should be noted that some components of the foldable electronic device 1000 of this application can be in one or more groups; however, regardless of whether it is in one or more groups, the actuating effect of this application can be achieved. The following is a simplified description, using only one group as an example.
[0094] Please refer to the following: Figure 4 , Figure 5 and Figure 6The central base 1 includes a body portion 11, a track portion 12, two first inner arc-shaped sliders 13, two second inner arc-shaped sliders 14, a track groove 15, a top plate 16, and a housing 17. The body portion 11 has an upper surface 111 and two shaft holes 112, which are recessed along a first axis X1 and a second axis X2, respectively. The track portion 12 is generally elongated and extends outward from the body portion 11. The first inner arc-shaped sliders 13 are generally semi-arc-shaped, protruding from the body portion 11 at intervals and opposite to each other, adjacent to one side of the body portion 11 (i.e., adjacent to the first panel body 4), and their axes can be defined as the first inner virtual axis VXI1. Figure 12 The second inner arc-shaped slider 14 is generally semi-arc-shaped, protruding from the body portion 11 at intervals and opposite to each other, adjacent to the other side of the body portion 11 (i.e., adjacent to the second panel body 9), and spaced apart from the first inner arc-shaped slider 13, and its axis can be defined as the second inner virtual axis VXI2. Figure 12 The track groove 15 is formed through the track section 12 and extends in a direction parallel to the first axis X1 and the second axis X2. The top plate 16 is generally rectangular and is fixed to the upper surface 111 of the main body section 11 and the torque module C. The outer shell 17 covers the bottom and two sides of the main body section 11.
[0095] The first wing member 2 includes a first wing body 21, two first inner arc-shaped slides 22, a first inner pivot portion 23, a first outer pivot portion 24, a first top surface 25, and a first arc surface 26. The first wing body 21 is generally a bent rectangular body. The first inner arc-shaped slides 22 are recessed at intervals on opposite sides of the first wing body 21 adjacent to the body portion 11, and are respectively provided for the first inner arc-shaped sliders 13 to slide, thereby enabling the first wing member 2 to pivot relative to the body portion 11 about the first inner virtual axis VXI1. Figure 12 The first inner pivot portion 23 extends from the first wing body 21 in a direction away from the first inner arc-shaped slide 22. The first outer pivot portion 24 extends outward from the first inner pivot portion 23. The first top surface 25 is formed on the first wing body 21 and adjacent to the body portion 11, and the first arc surface 26 is formed on the first wing body 21 and angularly adjacent to the first top surface 25, and is curved in a direction away from the first axis X1.
[0096] Please also refer to Figure 6 and Figure 7The first transmission component 3 includes an integrally formed first rod body 31, a first bending plate 32, and a first straight slider 33. The first rod body 31 has a first rod 311, a first stop 312, a first extension post 313, and a first locking post 315. One end of the first rod 311 is pivotally connected to one of the shaft holes 112 along a first axis X1. The first stop 312 is formed at the other end of the first rod 311. The first extension post 313 extends outward from the first stop 312 along the first axis X1, and its cross-sectional area is smaller than that of the first stop 312 and is a non-circular cross-section. The first locking post 315 extends outward from the first extension post 313 along the first axis X1, and its cross-sectional area is smaller than that of the first extension post 313 and is a circular cross-section. The first bending plate 32 extends outward from the first rod 311 along the radial direction of the first axis X1, and the first straight slider 33 extends outward from the first bending plate 32 along a direction parallel to the first axis X1. That is, the first rod 311 and the first straight slider 33 are respectively connected to the two sides of the first bending plate 32.
[0097] The first panel body 4 includes a first support member 41 and a first panel shell 42. The first support member 41 has a first support body 411, a first pivot portion 412, a first outer arc-shaped slide rail 413, a first receiving groove 414, and a first straight slide rail 415. The first pivot portion 412 extends outward from the first support body 411 and is pivotally connected to a first inner pivot portion 23. The first pivot portion 412 and the first inner pivot portion 23 together define a first inner pivot axis PXI1. Figure 12 This allows the first carrier 41 to rotate relative to the first wing member 2 about the first inner pivot axis PXI1. A first outer arc-shaped slide rail 413 is formed on the first carrier 411 and spaced apart from the first pivot portion 412, and defines a first outer small virtual axis VXS1. Figure 11 The first receiving groove 414 is defined by the first support body 411 and extends radially along the first axis X1, located between the first pivot portion 412 and the first straight slide groove 415. The first straight slide groove 415 is defined by the first support body 411, extends approximately perpendicular to the first axis X1, and allows the first straight slider 33 to slide linearly within it. The first panel housing 42 is approximately square-shaped, fixed to the first support member 41, and coplanar with the first top surface 25. In addition, the first panel body 4 also contains electronic components, but since they are not related to the folding operation, they will not be described in detail here.
[0098] The first link 5 includes a first arc-shaped groove 51 and a first shaft rotating part 52 spaced apart from each other. The first arc-shaped groove 51 is accommodated in the first receiving groove 414 and defines the first outer virtual axis VXB1. Figure 13 The first pivot part 52 is pivotally connected to the first outer pivot part 24, and together they define the first outer pivot axis PXO1. Figure 13 Thus, the first link 5 can rotate relative to the first wing member 2 about the first outer pivot axis PXO1.
[0099] Please see Figure 8 and Figure 9 The first water droplet plate 6 is pivotally supported by the first support member 41 and the first connecting rod 5, and includes a first large arc-shaped slider 61 and a first small arc-shaped slider 62. The first large arc-shaped slider 61 slides in the first arc-shaped groove 51, and the first small arc-shaped slider 62 slides in the first outer arc-shaped slide rail 413, thereby allowing the first water droplet plate 6 to rotate relative to the first support member 41 about the first outer small virtual axis VXS1. Figure 11 And it can rotate relative to the first link 5 about the first outer virtual axis VXB1. Figure 13 ).
[0100] The second wing member 7 includes a second wing body 71, two second inner arc-shaped slides 72, a second inner pivot portion 73, a second outer pivot portion 74, a second top surface 75, and a second arc surface 76. The second wing body 71 is generally a bent rectangular body. The second inner arc-shaped slides 72 are recessed at intervals on opposite sides of the second wing body 71 adjacent to the body portion 11, and are respectively provided for the second inner arc-shaped sliders 14 to slide, thereby allowing the second wing member 7 to pivot relative to the body portion 11 about the second inner virtual axis VXI2. Figure 12 The second inner pivot portion 73 extends outward from the second wing body 71. The second outer pivot portion 74 extends from the second inner pivot portion 73 in a direction away from the second inner arc-shaped slide 72. The second top surface 75 is formed on the second wing body 71 and adjacent to the body portion 11, and the second arc surface 76 is formed on the second wing body 71 and angularly adjacent to the second top surface 75, and is curved in a direction away from the second axis X2.
[0101] The second transmission member 8 is spaced apart from the first transmission member 3 and includes an integrally formed second rod body 81, a second bending plate 82, and a second straight slider 83. The second rod body 81 has a second rod 811, a second stop 812, a second extension post 813, and a second locking post 815. One end of the second rod 811 is pivotally connected to one of the shaft holes 112 along the second axis X2. The second stop 812 is formed at the other end of the second rod 811. The second extension post 813 extends outward from the second stop 812 along the second axis X2, and its cross-sectional area is smaller than that of the second stop 812 and is a non-circular cross-section. The second locking post 815 extends outward from the second extension post 813 along the second axis X2, and its cross-sectional area is smaller than that of the second extension post 813 and is a circular cross-section. The second bent plate 82 extends outward from the second rod 811 in a radial direction along the second axis X2, and the second straight slider 83 extends outward from the second bent plate 82 in a direction parallel to the second axis X2. That is, the second rod 811 and the second straight slider 83 are respectively connected to the two sides of the second bent plate 82.
[0102] The second panel body 9 is disposed opposite to the first panel body 4, and includes a second support member 91 and a second panel shell 92. The second support member 91 has a second support body 911, a second pivot portion 912, a second outer arc-shaped slide rail 913, a second receiving groove 914, and a second straight slide rail 915. The second pivot portion 912 extends outward from the second support body 911 and is pivotally connected to the second inner pivot portion 73. The second pivot portion 912 and the second inner pivot portion 73 together define the second inner pivot axis PXI2. Figure 12 The second carrier 91 can rotate relative to the second wing member 7 about the second inner pivot axis PXI2. A second outer arc-shaped slide 913 is formed on the second carrier 911 and spaced apart from the second pivot portion 912, and defines a second outer small virtual axis VXS2. Figure 11 The second receiving groove 914 is defined by the second support body 911 and extends radially along the second axis X2, located between the second pivot portion 912 and the second straight slide groove 915. The second straight slide groove 915 is defined by the second support body 911, extends approximately perpendicular to the second axis X2, and allows the second straight slider 83 to slide linearly within it. The second panel housing 92 is approximately square-shaped, fixed to the second support member 91, and coplanar with the second top surface 75. Additionally, the second panel body 9 also includes electronic components, but since these are less relevant to the folding operation, they will not be described further here.
[0103] The second link A includes a second arc-shaped groove A1 and a second shaft rotating part A2 spaced apart from each other. The second arc-shaped groove A1 is accommodated in the second receiving groove 914 and defines the second outer virtual axis VXB2. Figure 13The second pivot A2 is pivotally connected to the second outer pivot 74, and together they define the second outer pivot axis PXO2. Figure 13 This allows the second link A to rotate relative to the second wing member 7 about the second outer pivot axis PXO2.
[0104] The second water droplet plate B is pivotally supported by the second support member 91 and the second connecting rod A, and includes a second large arc-shaped slider B1 and a second small arc-shaped slider B2. The second large arc-shaped slider B1 slides in the second arc-shaped groove A1, and the second small arc-shaped slider B2 slides in the second outer arc-shaped slide 913, thereby allowing the second water droplet plate B to rotate relative to the second support member 91 about the second outer small virtual axis VXS2. Figure 11 It can rotate relative to the second link A about the second outer virtual axis VXB2. Figure 13 ).
[0105] The torque module C includes a fixed base C1, a first shaft hole C2, a second shaft hole C3, a first nut C4, a second nut C5, a first stop washer C6, multiple first cup-shaped washers C7, a second stop washer C8, and multiple second cup-shaped washers C9. The fixed base C1 has a body C11, a first wing C12, and a second wing C13. The body C11 is generally rectangular and is disposed on the track portion 12, exposing the track groove 15, and is spaced apart from the body portion 11. The first wing C12 and the second wing C13 extend outward from opposite sides of the body C11 and are spaced apart from each other. One side of the first wing C12 abuts against the first stop portion 312, and one side of the second wing C13 abuts against the second stop portion 812.
[0106] A first shaft hole C2 is formed in the first wing C12 along the first axis X1, and a first extension post 313 is pivotally connected through it. The cross-sectional area of C2 is larger than that of the first extension post 313. A second shaft hole C3 is formed in the second wing C13 along the second axis X2, and a second extension post 813 is pivotally connected through it. The cross-sectional area of C3 is larger than that of the second extension post 813. A first nut C4 is screwed into the first locking post 315, and a second nut C5 is screwed into the second locking post 815.
[0107] The first stop washer C6 has a first through hole C61, through which the first extension post 313 passes. The cross-section of the first through hole C61 matches the cross-section of the first extension post 313 and is a non-circular cross-section, thereby allowing the first stop washer C6 to be fitted onto the first extension post 313 and to move in tandem with it. The first cup-shaped washer C7 is fitted onto the first extension post 313 and located between the first nut C4 and the first stop washer C6, and does not move in tandem with the first extension post 313. It constantly provides a first elastic force, which tends to cause the first stop washer C6 to abut against the other side of the first wing C12. The magnitude of the first elastic force can be changed by adjusting the distance between the first nut C4 and the first wing C12. The second stop washer C8 has a second through hole C81 through which the second extension post 813 passes. The cross-section of the second through hole C81 matches the cross-section of the second extension post 813 and is a non-circular cross-section, thereby allowing the second stop washer C8 to be fitted onto the second extension post 813 and to move in tandem with it. The second cup-shaped washer C9 is fitted onto the second extension post 813 and located between the second nut C5 and the second stop washer C8, and does not move in tandem with the second extension post 813. It constantly provides a second elastic force, which tends to cause the second stop washer C8 to abut against the other side of the second wing C13. The magnitude of the second elastic force can be changed by adjusting the distance between the second nut C5 and the second wing C13.
[0108] The synchronization module D includes a synchronization slider D1, a limiting rib D2, a first helical protrusion D3, a second helical protrusion D4, a first helical groove D5, and a second helical groove D6. The synchronization slider D1 is slidably disposed between the first transmission member 3 and the second transmission member 8 and on the track portion 12, and is connected to the first transmission member 3 and the second transmission member 8. The limiting rib D2 extends outward from the bottom surface of the synchronization slider D1 and is slidably accommodated in the track groove 15, thereby allowing the synchronization slider D1 to move along the track groove 15. The first helical protrusion D3 is formed along the first helical direction H1 on one of the two opposite sides of the synchronization slider D1. The second helical protrusion D4 is formed along the second helical direction H2 on the other of the two opposite sides of the synchronization slider D1. The first helical groove D5 is recessed along the first helical direction H1 in the first rod body 311 and is matched to accommodate the first helical protrusion D3 therein. The second helical groove D6 is recessed in the second rod body 811 along the second helical direction H2, and is matched to accommodate the second helical protrusion D4 therein. In this embodiment, the first helical direction H1 and the second helical direction H2 are opposite. In other embodiments, the first helical groove D5 and the second helical groove D6 may also be recessed on opposite sides of the synchronous slider body D1, and the first helical protrusion D3 and the second helical protrusion D4 may also be formed on the first rod body 311 and the second rod body 811, respectively. This application is not limited thereto.
[0109] The flexible screen E is disposed on the first panel body 4, the second panel body 9, the first water drop plate 6, the second water drop plate B and the central base 1, and includes a bendable area E1, which roughly corresponds to the central base 1, the first curved surface 26, the second curved surface 76, the first water drop plate 6 and the second water drop plate B.
[0110] The following describes the operation of the foldable electronic device 1000 of this application. The first panel body 4 and the second panel body 9 can be in an unfolded state (e.g., Figure 1 , Figure 9 and Figure 10 ) and a folded state (such as Figure 14 The flexible screen E can be unfolded when the first panel body 4 and the second panel body 9 are unfolded. The first water drop plate 6, the second water drop plate B, the first top surface 25, the second top surface 75, the upper surface 111 of the body part 11 and the top plate 16 are coplanar and jointly support the bendable area E1. At this time, the first support member 41 and the second support member 91 are substantially sandwiched by 180 degrees.
[0111] When the first panel body 4 and the second panel body 9 are in the unfolded state ( Figure 11 , Figure 12 and Figure 13 ) Towards the folded state ( Figure 15 and Figure 16During the transformation, the first wing member 2 and the second wing member 7 pivot relative to the main body 11 around the first inner virtual axis VXI1 and the second inner virtual axis VXI2, respectively, causing the first inner pivot part 23 and the second inner pivot part 73 to gradually approach each other. The first bearing member 41 and the second bearing member 91 pivot relative to the first wing member 2 and the second wing member 7 around the first inner pivot axis PXI1 and the second inner pivot axis PXI2, respectively. At the same time, the first bearing member 41 and the second bearing member 91 pivot relative to the first water drop plate 6 and the second water drop plate B around the first outer small virtual axis VXS1 and the second outer small virtual axis VXS2, respectively. The first link 5 and the second link A also pivot relative to the first wing member 2 and the second wing member 7 around the first outer pivot axis PXO1 and the second outer pivot axis PXO2, respectively. At the same time, the first link 5 and the second link A pivot relative to the first water drop plate 6 and the second water drop plate B around the first outer large virtual axis VXB1 and the second inner virtual axis PXO2, respectively. The system pivots around the virtual axis VXB2, meaning it gradually changes from a state where the upper surfaces of the first water droplet plate 6, the second water droplet plate B, the first top surface 25, the second top surface 75, and the upper surface 111 of the central base 1 are coplanar. This gradually changes to a state where the first water droplet plate 6 and the second water droplet plate B are obliquely intersecting the first top surface 25 and the second top surface 75, respectively, and then to a state where the first top surface 25 and the second top surface 75 are obliquely intersecting the upper surface 111 of the central base 1. Simultaneously, the first straight slider 33 and the second straight slider 83 slide linearly in the first straight groove 415 and the second straight groove 915 (sliding from one end of the groove to the other). This also causes the first rod body 31 and the second rod body 81 to pivot synchronously in opposite directions around the first axis X1 and the second axis X2, respectively. The first helical protrusion D3 and the second helical protrusion D4 also slide along the first helical groove D5 and the second helical groove D6, respectively. Simultaneously, the slider body D1 moves along the track groove 15 towards the fixed seat C1 (as shown). Figure 10 and Figure 17 (As shown).
[0112] Furthermore, the transformation of the first panel body 4 and the second panel body 9 from the unfolded state to the folded state is synchronous. Even when only the first panel body 4 is pivoted, the linear sliding of the first straight slider 33 in the first straight groove 415 causes the first rod body 31 to pivot about the first axis X1, causing the first helical protrusion D3 to slide along the first helical groove D5, and simultaneously causing the synchronous slider body D1 to move along the track groove 15 towards the fixed seat C1 (e.g., Figure 10 and Figure 17As shown, during the movement of the synchronous slider D1, the second helical protrusion D4 slides along the second helical groove D6, causing the second rod 81 to pivot about the second axis X2 (in the opposite direction to the first rod 31), and causing the second straight slider 83 to slide linearly in the second straight groove 915, thereby generating the aforementioned related linkage, thereby enabling the second panel body 9 to pivot synchronously. Similarly, if only the second panel body 9 is moved, the first panel body 4 will also pivot synchronously; the relevant details will not be elaborated further. During the transition from the unfolded state to the folded state of the first panel body 4 and the second panel body 9, the first rod 31 and the second rod 81 pivot in opposite directions simultaneously, causing the first stop 312 and the first stop washer C6 to rub against the opposite sides of the first wing C12 at the same time, and the second stop 812 and the second stop washer C8 to rub against the opposite sides of the second wing C13 at the same time. In this way, the first support member 41 and the second support member 91 can stop at any angle, which is between 0 degrees and 180 degrees.
[0113] Additionally, when the first panel body 4 and the second panel body 9 are in the unfolded state, as Figure 13 As shown, a first distance L1 is defined between the first axis X1 and the first outer virtual axis VXB1, and a second distance L2 is defined between the second axis X2 and the second outer virtual axis VXB2. When the first panel body 4 and the second panel body 9 are in the folded state, as... Figure 16 As shown, a first distance L1' is defined between the first axis X1 and the first outer virtual axis VXB1, and a second distance L2' is defined between the second axis X2 and the second outer virtual axis VXB2. When the first panel body 4 and the second panel body 9 change from the unfolded state to the folded state, the first arc-shaped slide 51 and the second arc-shaped slide A1 move linearly outward in the first receiving groove 414 and the second receiving groove 914, respectively. The first distance L1 increases to the first distance L1', and the second distance L2 increases to the second distance L2', thereby making the first water drop plate 6 and the second water drop plate B further away from the central base 1.
[0114] Please see Figure 15 and Figure 16When the first panel body 4 and the second panel body 9 are in a folded state, the first water droplet plate 6 and the second water droplet plate B are obliquely intersecting the first top surface 25 and the second top surface 75, respectively. The first top surface 25 and the second top surface 75 are obliquely intersecting the upper surface 111 of the central base 1, respectively. At this time, the first water droplet plate 6 and the second water droplet plate B are close to each other at one end of the first support member 41 and the second support member 91, respectively. The first support member 41 and the second support member 91 are substantially sandwiched at 0 degrees. The bendable area E1 of the flexible screen E is flexed. The first wing member 2, the second wing member 7, the first water droplet plate 6, the second water droplet plate B, the body part 11 of the central base 1 and the top plate 16 together define an accommodating space S to accommodate the bendable area E1. In other words, because the first water droplet plate 6 and the second water droplet plate B are further away from the central base 1, the flexible screen E is lifted upward and away from the central base 1, thereby creating the space required for the bendable area E1 of the flexible screen E to bend. At this time, the first water droplet plate 6, the second water droplet plate B, the first curved surface 26, the second curved surface 76 and the central base 1 can be roughly teardrop-shaped (that is, the accommodating space S is teardrop-shaped), and the bendable area E1 can be partially attached to the first water droplet plate 6, the second water droplet plate B, the first curved surface 26, the second curved surface 76 and the central base 1.
[0115] Furthermore, from a mechanical point of view, this application is a modified version of the Stephenson II six-link design, such as... Figure 18 As shown, the left-hand mechanism analysis diagram is a Stephenson Type II six-link, and the right-hand mechanism analysis diagram is the present application. The present application converts one of the rotating pairs in the Stephenson Type II six-link into a sliding pair (corresponding to the combination of the first straight slider 33 and the first straight groove 415). That is to say, the body part 11, the first wing member 2, the first transmission member 3, the first bearing member 41, the first link 5, and the first water drop plate 6 essentially constitute a Stephenson Type II six-link with sliding replacing rotation, while the body part 11, the second wing member 7, the second transmission member 8, the second bearing member 91, the second link A, and the second water drop plate B essentially constitute another Stephenson Type II six-link with sliding replacing rotation.
[0116] In summary, the foldable electronic device of this application allows the first and second wings to pivot relative to the central base, the first and second support members to pivot relative to the first and second wings respectively, and the first and second connecting rods to pivot relative to the first and second wings respectively. This pivots the first water droplet plate relative to the first support member and the first connecting rod, and the second water droplet plate relative to the second support member and the second connecting rod. Simultaneously, it drives the first and second transmission members to pivot relative to the first and second support members respectively. The carrier slides linearly, causing the first and second rods to rotate synchronously. When the first and second panel bodies are in the unfolded state, the first wing, the second wing, the first water droplet plate, the second water droplet plate, and the central base together support the bendable area of the flexible screen. When the screen is folded, the first and second water droplet plates move further away from the central base, which can lift the flexible screen upwards. In this way, together with the first wing, the second wing, and the central base, a sufficiently large accommodating space is effectively created to accommodate the bendable area.
Claims
1. A foldable electronic device, characterized in that, The foldable electronic device includes: A central base includes a body portion, a track portion, at least one first inner arc-shaped slider and at least one second inner arc-shaped slider, the track portion being formed extending outward from the body portion, and the first inner arc-shaped slider and the second inner arc-shaped slider being formed on the body portion at intervals from each other. A torque module is installed in the track section; A first wing member includes at least a first inner arc-shaped slide, a first inner pivot portion and a first outer pivot portion. The first inner arc-shaped slide is slidably disposed on the first inner arc-shaped slide, thereby enabling the first wing member to pivot relative to the main body about a first inner virtual axis. A first transmission component includes a first rod body, which is pivotally connected to the torque module and the main body along a first axis; A first panel body includes a first support member, which is linearly slidable relative to the first transmission member, and includes a first pivot portion, a first outer arc-shaped slide rail and a first receiving groove. The first pivot portion is pivotally connected to the first inner pivot portion and together define a first inner pivot axis. The first support member is rotatable relative to the first wing member about the first inner pivot axis. A first connecting rod is accommodated in the first receiving groove and pivotally connected to the first external pivot portion; A first water droplet plate is pivotally supported by the first bearing member and the first connecting rod; A second wing member includes at least a second inner arc-shaped slide, a second inner pivot portion and a second outer pivot portion. The second inner arc-shaped slide block is slidably disposed in the second inner arc-shaped slide, thereby enabling the second wing member to pivot relative to the main body about a second inner virtual axis. A second transmission component includes a second rod body, which is pivotally connected to the torque module and the main body along a second axis and spaced apart from the first rod body; A second panel body includes a second support member, which can slide linearly relative to the second transmission member, and includes a second pivot portion, a second outer arc-shaped slide rail and a second receiving groove. The second pivot portion is pivotally connected to the second inner pivot portion and together define a second inner pivot axis. The second support member can rotate relative to the second wing member about the second inner pivot axis. A second connecting rod is accommodated in the second receiving groove and pivotally connected to the second outer pivot portion; A second water droplet plate is pivotally supported by the second support member and the second connecting rod; A synchronization module includes a synchronization slider slidably disposed between a first transmission member and a second transmission member, wherein the first transmission member and the second transmission member are respectively connected to the synchronization slider, and the synchronization slider, when sliding, can drive the first transmission member and the second transmission member to rotate synchronously in opposite directions; and A flexible screen is disposed on the first panel body, the second panel body, the first water drop plate, the second water drop plate and the central base, and includes a bendable area; The first panel body and the second panel body can switch between an unfolded state and a folded state. When the first panel body and the second panel body are in the unfolded state, the flexible screen is flattened, and the first wing, the second wing, the first water drop plate, the second water drop plate and the central base jointly support the bendable area. When the first panel body and the second panel body are in the folded state, the bendable area of the flexible screen flexes, and the first wing, the second wing, the first water drop plate, the second water drop plate and the central base jointly define an accommodating space to accommodate the bendable area. The first water droplet plate includes a first large arc-shaped slider and a first small arc-shaped slider. The first small arc-shaped slider is slidably disposed on the first outer arc-shaped slide rail. The first connecting rod includes a first arc-shaped slide groove and a first shaft rotating part. The first large arc-shaped slider is slidably disposed on the first arc-shaped slide groove. The first shaft rotating part is pivotally connected to the first outer pivot part. The second water droplet plate includes a second large arc-shaped slider and a second small arc-shaped slider. The second small arc-shaped slider is slidably disposed on the second outer arc-shaped slide rail. The second connecting rod includes a second arc-shaped slide groove and a second shaft rotating part. The second large arc-shaped slider is slidably disposed on the second arc-shaped slide groove. The second shaft rotating part is pivotally connected to the second outer pivot part.
2. The foldable electronic device as claimed in claim 1, characterized in that, The main body, the first wing, the first transmission component, the first load-bearing component, the first connecting rod, and the first water droplet plate essentially constitute a Stephenson type II six-bar linkage where sliding replaces rotation, and wherein, The main body, the second wing, the second transmission component, the second load-bearing component, the second link, and the second droplet plate essentially constitute another Stephenson type II six-link system, where sliding replaces rotation.
3. The foldable electronic device as described in claim 2, characterized in that, The first transmission member further includes a first bent plate and a first straight slider. The first bent plate extends outward from the first rod in a radial direction along the first axis. The first straight slider extends outward from the first bent plate in a direction parallel to the first axis. The first support member further includes a first straight groove that extends substantially perpendicular to the first axis, and the first straight slider slides in the first straight groove. The second transmission member further includes a second bent plate and a second straight slider. The second bent plate extends outward from the second rod in a radial direction along the second axis. The second straight slider extends outward from the second bent plate in a direction parallel to the second axis. The second support member further includes a second straight groove that extends substantially perpendicular to the second axis, and the second straight slider slides in the second straight groove.
4. The foldable electronic device as claimed in claim 3, characterized in that, The first outer pivot and the first rotating shaft jointly define a first outer pivot axis. The first connecting rod rotates relative to the first wing member on the first outer pivot axis. The first outer arc-shaped slide defines a first outer small virtual axis. The first arc-shaped groove defines a first outer large virtual axis. The first water droplet plate rotates relative to the first carrier member and the first connecting rod on the first outer small virtual axis and the first outer large virtual axis, respectively. The second outer pivot and the second rotating shaft jointly define a second outer pivot axis. The second connecting rod rotates relative to the second wing member on the second outer pivot axis. The second outer arc-shaped slide defines a second outer small virtual axis. The second arc-shaped groove defines a second outer large virtual axis. The second water droplet plate rotates relative to the second carrier member and the second connecting rod on the second outer small virtual axis and the second outer large virtual axis, respectively. Furthermore, the first axis, the first inner virtual axis, and the first inner pivot... The axis, the first outer pivot axis, the first outer small virtual axis, the first outer large virtual axis, the second axis, the second inner virtual axis, the second inner pivot axis, the second outer pivot axis, the second outer small virtual axis, and the second outer large virtual axis are parallel to each other and do not overlap. The first receiving groove is formed through the radial direction of the first axis, and the second receiving groove is formed through the radial direction of the second axis. A first distance is defined between the first axis and the first outer large virtual axis, and a second distance is defined between the second axis and the second outer large virtual axis. When the first support member and the second support member change from the unfolded state to the folded state, the first arc-shaped slide and the second arc-shaped slide move linearly outward in the first receiving groove and the second receiving groove, respectively. The first distance and the second distance increase, thereby allowing the first water drop plate and the second water drop plate to move away from the central base.
5. The foldable electronic device as claimed in claim 4, characterized in that, The torque module includes a fixed base, a first shaft hole, and a second shaft hole. The fixed base has a first wing and a second wing. The first shaft hole is formed through the first wing along the first axis, and the second shaft hole is formed through the second wing along the second axis. The first rod has a first rod body, a first stop, and a first extension post. The first stop is formed at one end of the first rod body and abuts against the first wing. The first extension post extends outward from the first stop and passes through the first shaft hole, and the cross-sectional area of the first stop is larger than the cross-sectional area of the first extension post. The second rod has a second rod body, a second stop, and a second extension post. The second stop is formed at one end of the second rod body and abuts against the second wing. The second extension post extends outward from the second stop and passes through the second shaft hole, and the cross-sectional area of the second stop is larger than the cross-sectional area of the second extension post.
6. The foldable electronic device as claimed in claim 5, characterized in that, The torque module also includes a first stop washer, multiple first bowl-shaped washers, a second stop washer, and multiple second bowl-shaped washers. The first stop washer is fitted onto the first extension post and moves in tandem with the first extension post. The first bowl-shaped washer is fitted onto the first extension post and constantly provides a first elastic force, which tends to cause the first stop washer to abut against the first wing. The second stop washer is fitted onto the second extension post and moves in tandem with the second extension post. The second bowl-shaped washer is fitted onto the second extension post and constantly provides a second elastic force, which tends to cause the second stop washer to abut against the second wing. When the first panel body and the second panel body are in the unfolded state... The first and second support members are substantially 180 degrees apart. When the first and second panel bodies are in the folded state, the first and second support members are substantially 0 degrees apart. When the first and second panel bodies change between the unfolded and folded states, the first and second transmission members synchronously reverse, causing the first stop and the first stop washer to rub against the opposite sides of the first wing at the same time, and causing the second stop and the second stop washer to rub against the opposite sides of the second wing at the same time. In this way, the first and second support members can stop and be positioned at an angle between 0 and 180 degrees.
7. The foldable electronic device as claimed in any one of claims 1 to 6, characterized in that, The synchronization module also includes a first spiral bump, a second spiral bump, a first spiral groove and a second spiral groove, wherein the first spiral bump is matched and accommodated in the first spiral groove, and the second spiral bump is matched and accommodated in the second spiral groove.
8. The foldable electronic device as claimed in claim 7, characterized in that, The first helical groove is recessed in the first rod body along a first helical direction, the second helical groove is recessed in the second rod body along a second helical direction, the first helical protrusion and the second helical protrusion are respectively formed on opposite sides of the synchronous slider body, and the first helical direction is opposite to the second helical direction.
9. The foldable electronic device as claimed in claim 8, characterized in that, The central base also includes a track groove extending through the track section. The synchronization module also includes a limiting rib formed in the synchronization slider body, the limiting rib being slidably accommodated in the track groove. The first wing member also includes a first top surface, and the second wing member also includes a second top surface. When the first panel body and the second panel body are in the unfolded state, the first water droplet plate, the second water droplet plate, the first top surface, the second top surface, and the central base are coplanar. The first wing member also includes a first arcuate surface, angularly adjacent to the first top surface. The second wing member bends in a direction away from the first axis and includes a second arc surface that is angularly adjacent to the second top surface and bends in a direction away from the second axis. When the first panel body and the second panel body are in the folded state, the first water drop plate and the second water drop plate are close to each other at one end of the first support member and the second support member, respectively. The first water drop plate and the second water drop plate are obliquely intersecting the central base and, together with the first arc surface, the second arc surface and the central base, surround and define the accommodating space in a teardrop shape.