TW202409783A - Foldable electronic device - Google Patents

Abstract

A foldable electronic device including a base, two supporting structures, two foldable structures and a flexible screen is provided. Each supporting structure includes a first supporting member and a second supporting member, and each foldable structure includes a first linking member slidingly connected to the base and a second linking member contacting the first linking member. Each second supporting member is fixed to the corresponding first linking member, and is pivotally connected to the first supporting member through the first linking member. Each second linking member is slidably connected to the base, and is slidably connected to the corresponding first supporting member. A flexible display part of the flexible screen is in contact with the two first supporting members, and the two stationary display parts of the flexible screen are respectively fixed to the two second supporting members. The first linking member and the second linking member of each folding structure are suitable for sliding around a same axis in a first sliding stroke and a second sliding stroke respectively.

Description

Foldable electronic device

The present invention relates to an electronic device, and in particular to a foldable electronic device.

Commonly used flexible screens can be roughly divided into outward-folding screens and inward-folding screens according to their bending design. The display surface of the outward-folding screen is exposed to the outside after being folded, while the display surface of the inward-folding screen is hidden inside after being folded. For example, an inward-folding screen is applied to a foldable electronic device (such as a smart phone, a tablet computer or a notebook computer). The inward-folding screen includes two fixed display parts arranged opposite to each other and a flexible display part located between the two fixed display parts, and the two fixed display parts are respectively mounted and fixed on two housings. In the process of the two housings flipping relative to each other, the two fixed display parts moving synchronously with the two housings drive the flexible display part to unfold outward or bend inward.

Specifically, during the process of the foldable electronic device transitioning from the unfolded state to the folded state, the flexible display part is squeezed and bent inward, and finally folded between the two casings. In the folded state, if sufficient accommodation space is not provided between the two casings to accommodate the flexible display unit, the flexible display unit may be damaged due to excessive extrusion. On the contrary, in order to provide enough accommodation space to accommodate the flexible display part in the folded state, the thickness of the foldable electronic device in the folded state is not easy to be thinned, and may even cause problems with poor fit. On the other hand, the two casings in common foldable electronic devices rotate around two axes that are parallel to each other, which makes it difficult to reduce the assembly space of components and make it difficult to meet the thinning and light design requirements.

The present invention provides a foldable electronic device that can prevent a flexible screen from being damaged due to excessive extrusion and can meet the design requirements of thinness and lightness.

An embodiment of the present invention provides a foldable electronic device, including a base, two supporting structures, two folding structures, and a flexible screen. The two supporting structures are relatively arranged on the base, wherein each supporting structure includes a first supporting member and a second supporting member, and the first supporting member is located between the base and the second supporting member. The two folding structures are arranged on the base. The two supporting structures are respectively connected to the base through two folding structures, and each folding structure includes a first connecting member slidably connected to the base and a second connecting member contacting the first connecting member. The second supporting member of each supporting structure is fixedly connected to the first connecting member of the corresponding folding structure, and is pivotally connected to the first supporting member through the first connecting member. The second link of each folding structure is slidably connected to the base and slidably connected to the first supporting member of the corresponding supporting structure. The first link and the second link of each folding structure are adapted to slide respectively around the same axis for a first sliding stroke and a second sliding stroke greater than the first sliding stroke. The flexible screen includes two fixed display parts and a flexible display part located between the two fixed display parts, wherein the flexible display part contacts the two first supporting members, and the two fixed display parts are respectively fixedly connected to the two second supporting members.

In an embodiment of the present invention, each of the above-mentioned first supporting members has a first supporting surface, and each of the second supporting members has a second supporting surface. The flexible display part contacts the two first supporting surfaces, and the two fixed display parts are respectively fixed on the two second supporting surfaces.

In one embodiment of the present invention, the above-mentioned two supporting structures are suitable for switching between an expanded state and a folded state. In the expanded state, the two first supporting surfaces are coplanar with the two second supporting surfaces. In the folded state, the two first supporting surfaces face each other, and the angle between the two first supporting surfaces is a sharp angle or the distance between the two first supporting surfaces gradually increases from the two second supporting members toward the base, or the first supporting surface of each first supporting member is inclined to the second supporting surface of the corresponding second supporting member, or the angle between the first supporting surface of each first supporting member and the second supporting surface of the corresponding second supporting member is greater than 180 degrees. In addition, the two second supporting surfaces face each other and are parallel to each other.

In one embodiment of the present invention, the two supporting structures are adapted to switch between an unfolded state and a folded state. In the folded state, the two first supporting surfaces face each other and form a space with the base for accommodating the flexible display portion. The flexible display portion is deformed and flexed in the space and takes a water drop shape.

In an embodiment of the present invention, each of the above-mentioned first supporting members also has a first back surface relative to the first supporting surface, and each second supporting component further has a second back surface relative to the second supporting surface. The two support structures are adapted to convert between an unfolded state and a folded state. In the unfolded state, the two first back surfaces and the two second back surfaces are located on the same datum plane. In the folded state, there is a first angle between the first back surface of each first support member and the datum plane, and each There is a second angle smaller than the first angle between the second back surface of the second support member and the reference surface.

In an embodiment of the present invention, the above-mentioned second angle is equal to 90 degrees.

In an embodiment of the present invention, the first linkage member of each of the above-mentioned folding structures includes a first arc-shaped sliding part, and the second linkage member includes a second arc-shaped sliding part contacting the first arc-shaped sliding part. The base has two arc-shaped slide grooves arranged alternately in a direction parallel to the axis. The first arc-shaped sliding part of the first linking member and the second arc-shaped sliding part of the second linking member of each folding structure are slidably disposed on In the corresponding arc chute.

In one embodiment of the present invention, the first linking member of each folding structure further includes a first positioning protrusion located on the first arc-shaped sliding portion, and the second linking member further includes a second positioning protrusion located on the second arc-shaped sliding portion. The base is provided with a first limiting protrusion and a second limiting protrusion in each arc-shaped sliding groove. The first limiting protrusion and the second limiting protrusion in each arc-shaped sliding groove are respectively located on the sliding path of the first positioning protrusion of the first linking member and the sliding path of the second positioning protrusion of the second linking member of the corresponding folding structure.

In one embodiment of the present invention, the first arc-shaped sliding part of the first linking member and the second arc-shaped sliding part of the second linking member of each folding structure slide synchronously in the corresponding arc-shaped sliding groove, and the first positioning protrusion and the second positioning protrusion slide toward the first limiting protrusion and the second limiting protrusion respectively. The second positioning protrusion and the first positioning protrusion contact the second limiting protrusion and the first limiting protrusion successively, and the second arc-shaped sliding part and the first arc-shaped sliding part stop sliding successively.

In an embodiment of the present invention, the center of curvature of the first arc-shaped sliding portion of the first linking member of each folding structure and the center of curvature of the second arc-shaped sliding portion of the second linking member fall on an axis.

In an embodiment of the present invention, the above-mentioned foldable electronic device further includes an angle positioning structure. The angle positioning structure is arranged on the base and located on one side of the folding structure. The two supporting structures are connected to the base through angle positioning structures. The angle positioning structure includes a bracket, a first positioning part, two second positioning parts and two springs. The bracket is fixed to the base and includes two shaft parts arranged side by side. The first positioning component includes two first torsion positioning parts, and the two first torsion positioning parts are slidably sleeved on the two shaft parts respectively. The two second positioning parts are respectively slidably connected to the two second supporting parts. Each second positioning member includes a second torsion positioning portion. The two second torque positioning parts are rotatably sleeved on the two shaft parts respectively, and respectively contact the two first torque positioning parts. The two springs are respectively sleeved on the two shaft parts and contact the two first torsion positioning parts respectively. The two first torsion positioning parts are located between the two second torsion positioning parts and the two springs.

In an embodiment of the present invention, each of the first torsion positioning portions has a first concave and convex surface, and each of the second torsion positioning portions has a second concave and convex surface. The first concave-convex surface of each first torque positioning part contacts the second concave-convex surface of the corresponding second torque positioning part, and the first concave-convex surface matches the second concave-convex surface.

In an embodiment of the present invention, the above-mentioned foldable electronic device further includes a synchronous transmission structure. The synchronous transmission structure is arranged on the base and located on one side of the folding structure. The two supporting structures are connected to the base through a synchronous transmission structure. The synchronous transmission structure includes two first gears arranged in parallel, two second gears arranged in parallel and two transmission parts. The two first gears are pivoted on the base and mesh with each other. Two second gears are pivoted on the base, and the two second gears are meshed with the two first gears respectively. The two transmission members are respectively fixed to the two second support members, and the two second support members are respectively pivotally connected to the two first support members through the two transmission members, wherein each transmission member includes a transmission member that is slidably connected to the base. The transmission part and the rack part located on the transmission part, and the two rack parts are meshed with the two second gears respectively.

In an embodiment of the present invention, the transmission part of the above-mentioned transmission member is an arc-shaped transmission part.

In an embodiment of the present invention, the two transmission parts of the two transmission members are alternately arranged in a direction parallel to the axis.

In an embodiment of the present invention, the above-mentioned two first gears are located between the two transmission parts.

Another embodiment of the present invention provides a foldable electronic device, including a base, two support structures, two first folding structures, two second folding structures, a flexible screen, two angle positioning structures and a synchronous transmission structure. Two support structures are arranged oppositely on the base, wherein each support structure includes a first support member and a second support member, and the first support member is located between the base and the second support member. Two first folding structures are arranged on opposite sides of the base, and the support structure is connected to the base through the two first folding structures. Two second folding structures are disposed on opposite sides of the base and between the two first folding structures. Another supporting structure is connected to the base through two second folding structures. Each first folding structure and each second folding structure include a first linkage member slidingly connected to the base and a second linkage member contacting the first linkage member. The second support member of one support structure is fixed to the two first linking members of the two first folding structures, and is pivotally connected to the first support member through the two first linking members. The second supporting member of the other supporting structure is fixed to the two first linking members of the two second folding structures, and is pivotally connected to the first supporting member through the two first linking members. The two second linking parts of the two first folding structures are slidably connected to the base and to the first supporting part of a supporting structure. The two second linking parts of the two second folding structures are slidably connected to the base and to the first supporting part of the other supporting structure. The first linking member and the second linking member of each first folding structure and each second folding structure are adapted to respectively slide a first sliding stroke and a second sliding stroke larger than the first sliding stroke around the same axis. The flexible screen includes two fixed display parts and a flexible display part located between the two fixed display parts, wherein the flexible display part contacts two first supports, and the two fixed display parts are respectively fixed to the two second supports. Two supports. Two angle positioning structures are arranged on the base. The two support structures are connected to the base through two angle positioning structures, and the two angle positioning structures are located between the two second folding structures. The synchronous transmission structure is arranged on the base. The two support structures are connected to the base through a synchronous transmission structure, and the synchronous transmission structure is located between the two angle positioning structures.

Based on the above, since the first folding structure and the second folding structure slide around the same axis, and the first support structure and the second support structure rotate around the same axis, it not only helps to reduce the thickness of the foldable electronic device in the folded state, but also helps to reduce the thickness of the foldable electronic device in the folded state. It can also improve the fit of the foldable electronic device in the folded state, making it easier for the user to carry or store it. On the other hand, foldable electronic devices adopt a single-axis rotation design, which helps reduce the assembly space of components to meet the lightweight and thin design requirements. In the folded state, the first support member of the first support structure, the first support member of the second support structure, and the base can form a collapsed space that is narrow at the top and wide at the bottom to accommodate the deformed and water-drop-shaped deformable collapsible space. Flexible display part to prevent the flexible display part from being damaged due to excessive extrusion.

In order to make the above features and advantages of the present invention more clearly understood, embodiments are given below and described in detail with reference to the accompanying drawings.

FIG. 1A is a schematic diagram of a foldable electronic device according to an embodiment of the present invention. FIG. 1B is a schematic diagram of the foldable electronic device of FIG. 1A with the flexible screen removed. Please refer to FIG. 1A and FIG. 1B. In one embodiment, the foldable electronic device 10 can be applied to a smart phone, a tablet computer or a notebook computer, and includes a base 100, a first support structure 200a, and a first support structure 200a. The structure 200a is provided with a second support structure 200b and a flexible screen 400 in contact with the first support structure 200a and the second support structure 200b. Specifically, the first support structure 200a and the second support structure 200b are rotatably disposed on the base 100, and are adapted to the same axis AX relative to the base 100 to drive the flexible screen 400 to expand or bend.

The flexible screen 400 is disposed on the first supporting structure 200a and the second supporting structure 200b, wherein the first supporting structure 200a and the second supporting structure 200b both include a first supporting member 210 and a second supporting member 220 pivotally connected to each other, and the first supporting member 210 of the first supporting structure 200a and the first supporting member 210 of the second supporting structure 200b are disposed between the second supporting member 220 of the first supporting structure 200a and the second supporting member 220 of the second supporting structure 200b. In addition, the first supporting member 210 of the first supporting structure 200 a is located between the base 100 and the second supporting member 220 . Correspondingly, the first supporting member 210 of the second supporting structure 200 b is located between the base 100 and the second supporting member 220 .

1A and 1B , the flexible screen 400 adopts an inward folding design and includes two fixed display portions 410 and a flexible display portion 420 located between the two fixed display portions 410. Specifically, the flexible display portion 420 contacts the first supporting member 210 of the first supporting structure 200a and the first supporting member 210 of the second supporting structure 200b, and the two fixed display portions 410 are fixedly connected to the second supporting member 220 of the first supporting structure 200a and the second supporting member 220 of the second supporting structure 200b, respectively.

The first supporting member 210 of the first supporting structure 200a and the first supporting member 210 of the second supporting structure 200b may be two supporting plates and have the same size or may provide the same supporting area for the flexible display portion 420. The second supporting member 220 of the first supporting structure 200a and the second supporting member 220 of the second supporting structure 200b may also be two supporting plates and have the same size or may provide the same supporting area for the two fixed display portions 410 respectively. For example, the size or supporting area of the second supporting member 220 of the first supporting structure 200a and the second supporting member 220 of the second supporting structure 200b is larger than the size or supporting area of the first supporting member 210 of the first supporting structure 200a and the first supporting member 210 of the second supporting structure 200b.

FIG. 1C is a first exploded schematic diagram of FIG. 1B . FIG. 1D is a second exploded schematic diagram of FIG. 1B . FIG. 1D is a second exploded schematic diagram of FIG. 1B . Referring to FIG. 1B to FIG. 1D , in one embodiment, the foldable electronic device 10 further includes two first folding structures 300a, two second folding structures 300b, two angle positioning structures 500, and a synchronous transmission structure 600. The first supporting structure 200a is connected to the base 100 through the two first folding structures 300a, and the second supporting structure 200b is connected to the base 100 through the two second folding structures 300b.

On the other hand, the first supporting structure 200a is connected to the base 100 through two angle positioning structures 500, and the second supporting structure 200b is connected to the base 100 through two angle positioning structures 500. In the process that the first supporting structure 200a rotates relative to the base 100 through the two first folding structures 300a and the second supporting structure 200b rotates relative to the base 100 through the two second folding structures 300b, the two angle positioning structures 500 can simultaneously generate positioning torques on the first supporting structure 200a and the second supporting structure 200b to fix the rotation angles of the first supporting structure 200a and the second supporting structure 200b.

For example, in the unfolded state, the angle between the first supporting structure 200a and the second supporting structure 200b is fixed at 180 degrees. In the folded state, the angle between the first supporting structure 200a and the second supporting structure 200b is fixed at 0 degrees. In the intermediate state or transition state between the unfolded state and the folded state, the angle between the first supporting structure 200a and the second supporting structure 200b is fixed to be less than 180 degrees and greater than 0 degrees.

Please refer to Figures 1A to 1D. The first supporting structure 200a and the second supporting structure 200b are connected to the base 100 through a synchronous transmission structure 600. During the process that the first supporting structure 200a rotates relative to the base 100 through the two first folding structures 300a and the second supporting structure 200b rotates relative to the base 100 through the two second folding structures 300b, the synchronous transmission structure 600 can achieve the synchronization of the movements of the first supporting structure 200a and the second supporting structure 200b through the cooperation of a gear set or a gear set and a gear.

For example, when the first supporting structure 200a rotates 45 degrees clockwise, the second supporting structure 200b can synchronously rotate 45 degrees counterclockwise under the drive of the synchronous transmission structure 600. In other words, under the drive of the synchronous transmission structure 600, the first supporting structure 200a and the second supporting structure 200b can synchronously rotate in two different directions and have the same rotation stroke or angle. Driven by the first supporting structure 200a and the second supporting structure 200b, the two fixed display parts 410 of the flexible screen 400 can move synchronously to avoid uneven force on the flexible display part 420, thereby improving the smoothness and synchronization of the flexible display part 420 when it is unfolded or bent, and avoiding damage to the flexible display part 420 due to excessive pulling or squeezing.

As shown in FIGS. 1C and 1D , two first folding structures 300 a are disposed on opposite sides of the base 100 , and two second folding structures 300 b are disposed on opposite sides of the base 100 . Furthermore, the two second folding structures 300b are located between the two first folding structures 300a, in which the two angle positioning structures 500 and the synchronous transmission structure 600 are disposed on the base 100, and the synchronous transmission structure 600 is located at two angles. between positioning structures 500. In addition, the two angle positioning structures 500 are located between the two second folding structures 300b.

That is to say, in the direction D2 parallel to the axis AX, a first folding structure 300a, a second folding structure 300b, an angle positioning structure 500, a synchronous transmission structure 600, another angle positioning structure 500, and another second The folding structure 300b and another first folding structure 300a are arranged alternately.

FIG. 1E is a schematic diagram of FIG. 1B from another perspective. Figure 1F is a first explosion diagram of Figure 1E. FIG. 1G is an enlarged schematic diagram of the region R in FIG. 1F. Figure 1H is a second explosion diagram of Figure 1E. Please refer to FIG. 1D , FIG. 1E and FIG. 1F , the base 100 may include a first positioning base, a second positioning base and a third positioning base arranged along the direction D2 and fixed on the bottom housing 101 . For example, a first folding structure 300a, a second folding structure 300b, and an angle positioning structure 500 are connected to the first positioning base, wherein the synchronous transmission structure 600 is connected to the second positioning base, and the other angle positioning structure 500. Another second folding structure 300b and another first folding structure 300a are connected to the third positioning base.

The bottom shell 101 has a plurality of lateral openings, which are distributed on two opposite sides of the axis AX. Specifically, the two first folding structures 300a, the two angle positioning structures 500 and the synchronous transmission structure 600 pass outward from a portion of the plurality of lateral openings to connect to the first supporting structure 200a, and correspondingly, the two second folding structures 300b, the two angle positioning structures 500 and a portion of the synchronous transmission structure 600 pass outward from another portion of the plurality of lateral openings to connect to the second supporting structure 200b.

Please refer to Figure 1D and Figure 1F to Figure 1H. A first folding structure 300a and a second folding structure 300b located on one side of the synchronous transmission structure 600 can be regarded as a first folding group, and are located on the other side of the synchronous transmission structure 600. Another first folding structure 300a and another second folding structure 300b can be regarded as a second folding group. The first folding group and the second folding group are arranged symmetrically. The following is an example of the first folding group.

FIG2A is a schematic diagram of the folding structure of FIG1D. FIG2B and FIG2C are exploded schematic diagrams of the folding structure of FIG2A at two different viewing angles. Referring to FIG1G and FIG2A to FIG2C, the first folding structure 300a and the second folding structure 300b both include a first linking member 310 slidably connected to the base 100 and a second linking member 320 contacting the first linking member 310, and the second linking member 320 is slidably connected to the base 100.

In detail, the second supporting member 220 of the first supporting structure 200a is fixed to the first linking member 310 of the first folding structure 300a, and is pivoted to the first supporting member 210 through the first linking member 310. Correspondingly, the second supporting member 220 of the second supporting structure 200b is fixed to the first linking member 310 of the second folding structure 300b, and is pivoted to the first supporting member 210 through the first linking member 310. On the other hand, the second linking member 320 of the first folding structure 300a is slidably connected to the first supporting member 210 of the first supporting structure 200a, and the second linking member 320 of the second folding structure 300b is slidably connected to the first supporting member 210 of the second supporting structure 200b.

1G and 1H, the bottom surface of the first supporting member 210 of the first supporting structure 200a is provided with a hinge structure and a sliding structure adjacent to each other, wherein the hinge structure has a hinge hole, and the sliding structure has a sliding groove. The first connecting member 310 of the first folding structure 300a is hinged to the hinge structure of the first supporting member 210, and the second connecting member 320 is slidably connected to the sliding structure of the first supporting member 210.

Similarly, the bottom surface of the first supporting member 210 of the second supporting structure 200b is provided with a hinge structure and a sliding structure adjacent to each other, wherein the hinge structure has a hinge hole, and the sliding structure has a sliding groove. The first connecting member 310 of the second folding structure 300b is hinged to the hinge structure of the first supporting member 210, and the second connecting member 320 is slidably connected to the sliding structure of the first supporting member 210.

Please refer to FIG. 1G, FIG. 2B and FIG. 2C. The first linking member 310 of the first folding structure 300a and the second folding structure 300b both includes a first arc sliding part 311, and the first folding structure 300a and the second folding structure 300b The second linking members 320 each include a second arc-shaped sliding part 321. In addition, the base 100 has two arc-shaped slide grooves 110a and 110b alternately arranged along the direction D2.

In the first folding structure 300a, the first arc-shaped sliding part 311 and the second arc-shaped sliding part 321 are slidably disposed in the arc-shaped chute 110a, so that the first linking member 310 and the second linking member 320 can slide around the axis AX. , and drive the first support structure 200a to rotate around the axis AX. In the second folding structure 300b, the first arc-shaped sliding part 311 and the second arc-shaped sliding part 321 are slidably disposed in the arc-shaped chute 110b, so that the first linking member 310 and the second linking member 320 can slide around the axis AX. , and drive the second support structure 200b to rotate around the axis AX. Since the first folding structure 300a and the second folding structure 300b slide around the same axis AX, and the first support structure 200a and the second support structure 200b rotate around the same axis AX, it helps to reduce the assembly space of components to meet the requirements of thinness and lightness. oriented design requirements.

Please refer to Figure 1D and Figure 1H. An angle positioning structure 500 located on one side of the synchronous transmission structure 600 is symmetrically arranged with another angle positioning structure 500 located on the other side of the synchronous transmission structure 600. The following is about one of the angle positioning structures 500. Give examples.

FIG. 3A is a schematic diagram of the angle positioning structure of FIG. 1D . FIG. 3B and FIG. 3C are exploded schematic diagrams of the angle positioning structure of FIG. 3A at two different viewing angles. Referring to FIG. 1D and FIG. 3A to FIG. 3C or FIG. 1H and FIG. 3A to FIG. 3C , the angle positioning structure 500 includes a bracket 510, a first positioning member 520, two second positioning members 530, and two springs 540, wherein the bracket 510 is fixedly connected to the base 100 and includes two shafts 511 arranged in parallel. The first positioning member 520 includes two first torque positioning members 521, and the two first torque positioning members 521 are respectively slidably sleeved on the two shafts 511.

The two second positioning members 530 are respectively slidably connected to the second supporting member 220 of the first supporting structure 200a and the second supporting member 220 of the second supporting structure 200b, and each second positioning member 530 includes a second torque positioning portion 531. In detail, the two second torque positioning portions 531 are respectively rotatably sleeved on the two shafts 511 and respectively contact the two first torque positioning portions 521. On the other hand, the two springs 540 are respectively sleeved on the two shafts 511 and respectively contact the two first torque positioning portions 521. The two springs 540 can be compression springs, and the two first torque positioning portions 521 are located between the two second torque positioning portions 531 and the two springs 540.

When the two second positioning members 530 rotate along with the second supporting members 220 of the first supporting structure 200a and the second supporting members 220 of the second supporting structure 200b, the two second torque positioning parts 531 rotate relative to the two first torque positioning parts 521 and drive the two first torque positioning parts 521 to slide on the two shaft parts 511. Accordingly, the two springs 540 are elastically deformed along with the sliding of the two first torque positioning parts 521. Therefore, the elastic restoring force of the two springs 540 can act on the two first torque positioning parts 521 respectively, so that the two first torque positioning parts 521 respectively maintain contact with the two second torque positioning parts 531 and generate positioning torque to fix the rotation angle of the first supporting structure 200a and the second supporting structure 200b.

Please refer to FIG. 1E, FIG. 1H and FIG. 3A, the bottom surface of the second supporting member 220 of the first supporting structure 200a is provided with a sliding structure, and the sliding structure has a sliding groove. Similarly, the bottom surface of the second supporting member 220 of the second supporting structure 200b is provided with a sliding structure, and the sliding structure has a sliding groove. Each second positioning member 530 further includes a sliding portion 533 corresponding to the second torque positioning portion 531, and the two sliding portions 533 of the two second positioning members 530 are respectively slidably connected to the sliding structure.

FIG. 4A is a schematic diagram of the synchronous transmission structure of FIG. 1D . FIG. 4B and FIG. 4C are exploded schematic diagrams of the synchronous transmission structure of FIG. 4A at two different viewing angles. Referring to FIG. 1E and FIG. 4A to FIG. 4C , the synchronous transmission structure 600 includes two first gears 610 arranged in parallel, two second gears 620 arranged in parallel, and two transmission members 630. The two first gears 610 are pivoted on the base 100 and meshed with each other. The two second gears 620 are pivoted on the base 100, and the two second gears 620 are respectively meshed with the two first gears 610. In other words, the two second gears 620 can rotate synchronously, and the rotation directions are opposite to each other.

The two transmission members 630 are fixed to the second support member 220 of the first support structure 200a and the second support member 220 of the second support structure 200b, respectively, and the second support member 220 of the first support structure 200a and the second support member 220 of the second support structure 200b are pivotally connected to the first support member 210 of the first support structure 200a and the first support member 210 of the second support structure 200b through the two transmission members 630.

Please refer to FIG. 1E, FIG. 4A and FIG. 4B, the two transmission members 630 are alternately arranged along the direction D2, and both include a transmission part 631 slidably connected to the base 100 and a gear part 632 located on the transmission part 631. Specifically, the two transmission parts 631 are alternately arranged along the direction D2, and can be arc-shaped transmission parts. On the other hand, the two gear parts 632 can be two arc-shaped gear parts respectively connected to the two second gears 620, and the two second gears 620 can be two parallel shaft gears. Based on the cooperation of the two gear parts 632, the two second gears 620 and the two first gears 610, the two transmission parts 631 can slide synchronously relative to the base 100, so that the two transmission parts 630 rotate in two opposite directions around the two rotation axes of the two second gears 620 respectively.

Therefore, when the first supporting structure 200a rotates relative to the base 100 through the two first folding structures 300a and the second supporting structure 200b rotates relative to the base 100 through the two second folding structures 300b, the first supporting structure 200a and the second supporting structure 200b can rotate synchronously in two opposite directions through the synchronous transmission structure 600.

For example, the base 100 may have two arc-shaped sliding spaces alternately arranged along the direction D2 to accommodate two transmission parts 631, as shown in FIG. 4B and FIG. 4C.

5A to 5C are side views of a foldable electronic device according to an embodiment of the present invention when the foldable electronic device is transformed from an unfolded state to a folded state. Referring to FIG. 5A to 5C , the foldable electronic device 10 further includes a first housing 11 and a second housing 12, wherein the first supporting structure 200a and the first folding structure 300a are disposed on the first housing 11, and the second supporting structure 200b and the second folding structure 300b are disposed on the second housing 12.

The first housing 11 moves synchronously with the first folding structure 300a, and the second housing 12 moves synchronously with the second folding structure 300b. In the unfolded state, the bottoms of the first housing 11, the base 100 and the second housing 120 remain flat, so that the user can hold or place it on a work surface. On the other hand, since the first folding structure 300a and the second folding structure 300b slide around the same axis AX, and the first supporting structure 200a and the second supporting structure 200b rotate around the same axis AX, it not only helps to reduce the thickness of the foldable electronic device 10 in the folded state, but also can improve the fit between the first shell 11 and the second shell 120 in the folded state, so as to facilitate the user to carry or store.

5A to 5C , each first support member 210 has a first support surface 211, and each second support member 220 has a second support surface 221. The flexible display portion 420 contacts the two first support surfaces 211, and the two fixed display portions 410 are respectively fixed to the two second support surfaces 221. In the process of the foldable electronic device 10 being transformed from the unfolded state to the folded state, the two second support members 220 rotate around the same axis AX relative to the base 100, and the two fixed display portions 410 move synchronously with the two second support members 220 until the two second support surfaces 221 face each other and remain parallel, and the two second support members 220 stop rotating. In the folded state, the two fixed display portions 410 face each other and remain parallel.

When the foldable electronic device 10 is transformed from the unfolded state to the folded state, the two first supporting members 210 rotate around the same axis AX relative to the base 100, and the flexible display portion 420 is squeezed by the two fixed display portions 410 to bend. In the folded state, the two first supporting members 210 are tilted relative to the two second supporting members 220, and the two first supporting surfaces 211 are tilted to the two second supporting surfaces 221.

As shown in FIG. 5C , the two first supporting surfaces 211 face each other and are not parallel to each other, so as to form a narrow upper and wide lower contraction space 201 with the base 100 to accommodate the deformed and teardrop-shaped flexible display portion 420 and prevent the flexible display portion 420 from being damaged due to excessive squeezing.

As shown in Figure 5C, the axis AX falls within the collapse space 201. As shown in FIGS. 5A and 5C , the axis AX falls above the flexible display part 420 during the transition between the unfolded state and the folded state.

FIG. 6A is a top view of the foldable electronic device of FIG. 5A with the flexible screen removed. FIG. 6B is a schematic cross-sectional view along line segment I-I in FIG. 6A. FIG. 6C is a schematic cross-sectional view of FIG. 6B transitioning to a folded state. Please refer to FIG. 2B and FIG. 6A to FIG. 6C. In the first folding structure 300a, the first arc-shaped sliding part 311 of the first linking member 310 is slidably disposed in the arc-shaped slide groove 110a, and the first arc-shaped sliding part 311 The center of curvature 311a falls on the axis AX. The end of the first arc-shaped sliding part 311 has a first positioning protrusion 312, and the first positioning protrusion 312 slides along the first sliding path in the arc-shaped slide groove 110a. Specifically, the first sliding path has a starting point and an ending point of stroke, and a first limiting protrusion 111 is provided in the arcuate chute 110a at the ending point of the first sliding path.

FIG. 6D is a schematic cross-sectional view along line segment J-J in FIG. 6A. FIG. 6E is a schematic cross-sectional view of FIG. 6D transitioning to a folded state. Please refer to FIG. 2B, FIG. 6D and FIG. 6E. In the first folding structure 300a, the second arc-shaped sliding part 321 of the second linking member 320 is slidably disposed in the arc-shaped slide groove 110a, and the second arc-shaped sliding part 321 The center of curvature 321a of falls on the axis AX. The end of the second arc-shaped sliding part 321 has a second positioning protrusion 322, and the second positioning protrusion 322 slides in the arc-shaped slide groove 110a along a second sliding path parallel to the first sliding path. In detail, the second sliding path has a starting point of stroke and an end point of stroke, and a second limiting protrusion 112 is provided in the arcuate chute 110 a at the end point of stroke of the second sliding path.

6B to 6E , the arc distance between the starting point and the end point of the first sliding path is greater than the arc distance between the starting point and the end point of the second sliding path. The first arc sliding portion 311 of the first link 310 is in contact with the second arc sliding portion 321 of the second link 320. In the process of the first folding structure 300a switching from the unfolded state to the folded state, the first arc sliding portion 311 of the first link 310 and the second arc sliding portion 321 of the second link 320 slide synchronously in the slide groove 110a, and the first positioning protrusion 312 and the second positioning protrusion 322 slide toward the first limiting protrusion 111 and the second limiting protrusion 112 respectively. Then, the second positioning protrusion 322 and the first positioning protrusion 312 contact the second limiting protrusion 112 and the first limiting protrusion 111 successively, and the second arc-shaped sliding portion 321 and the first arc-shaped sliding portion 311 stop sliding successively.

That is, the first link 310 and the second link 320 are adapted to slide relative to the base 100 around the same axis AX, and have a first sliding stroke S1 and a second sliding stroke S2, respectively. When the foldable electronic device 10 is transformed from the unfolded state to the folded state, the second support member 220 of the first support structure 200a rotates 90 degrees along with the first link 310. On the other hand, since the first link 310 and the second link 320 are designed with a sliding stroke difference, and the first sliding stroke S1 is greater than the second sliding stroke S2, the first support member 210 of the first support structure 200a is constrained by the second link 320 and tilts relative to the second support member 220. For example, one end of the first supporting member 210 of the first supporting structure 200a close to the base 100 is constrained by the second linking member 320 to tilt in a direction away from the axis AX.

FIG. 6F is a schematic cross-sectional view along line segment K-K in FIG. 6A. FIG. 6G is a schematic cross-sectional view of FIG. 6F transitioning to a folded state. Please refer to Figure 2B, Figure 6A, Figure 6F and Figure 6G. In the second folding structure 300b, the first arc-shaped sliding part 311 of the first linking member 310 is slidably disposed in the arc-shaped slide groove 110b, and the first arc-shaped The center of curvature 311a of the sliding portion 311 falls on the axis AX. The end of the first arc-shaped sliding part 311 has a first positioning protrusion 312, and the first positioning protrusion 312 slides along the first sliding path in the arc-shaped slide groove 110b. In detail, the first sliding path has a starting point of stroke and an end point of stroke, and a first limiting protrusion 111 is provided in the arcuate chute 110b at the end point of stroke of the first sliding path.

FIG6H is a schematic cross-sectional view along line segment L-L of FIG6A. FIG6I is a schematic cross-sectional view of FIG6H when it is converted to a folded state. Referring to FIG2B, FIG6H and FIG6I, in the second folding structure 300b, the second arc-shaped sliding portion 321 of the second link 320 is slidably disposed in the arc-shaped slide groove 110b, and the curvature center 321a of the second arc-shaped sliding portion 321 falls on the axis AX. The end of the second arc-shaped sliding portion 321 has a second positioning protrusion 322, and the second positioning protrusion 322 slides in the arc-shaped slide groove 110b along a second sliding path parallel to the first sliding path. In detail, the second sliding path has a stroke starting point and a stroke end point, and a second limiting protrusion 112 is provided at the stroke end point of the second sliding path in the arc-shaped slide groove 110b.

6F to 6I , the arc distance between the starting point and the end point of the first sliding path is greater than the arc distance between the starting point and the end point of the second sliding path. The first arc sliding portion 311 of the first link 310 is in contact with the second arc sliding portion 321 of the second link 320. In the process of the second folding structure 300b switching from the unfolded state to the folded state, the first arc sliding portion 311 of the first link 310 and the second arc sliding portion 321 of the second link 320 slide synchronously in the slide groove 110b, and the first positioning protrusion 312 and the second positioning protrusion 322 slide toward the first limiting protrusion 111 and the second limiting protrusion 112 respectively. Then, the second positioning protrusion 322 and the first positioning protrusion 312 contact the second limiting protrusion 112 and the first limiting protrusion 111 successively, and the second arc-shaped sliding portion 321 and the first arc-shaped sliding portion 311 stop sliding successively.

That is, the first link 310 and the second link 320 are adapted to slide relative to the base 100 around the same axis AX, and have a first sliding stroke S1 and a second sliding stroke S2, respectively. When the foldable electronic device 10 is transformed from the unfolded state to the folded state, the second support member 220 of the second support structure 200b rotates 90 degrees with the first link 310. On the other hand, since the first link 310 and the second link 320 are designed with a sliding stroke difference, and the first sliding stroke S1 is greater than the second sliding stroke S2, the first support member 210 of the second support structure 200b is constrained by the second link 320 and tilts relative to the second support member 220. For example, the end of the first supporting member 210 of the second supporting structure 200b close to the base 100 is constrained by the second linking member 320 to tilt in a direction away from the axis AX.

As shown in FIG. 5A and FIG. 6B , in the unfolded state, the two first supporting surfaces 211 of the two first supporting members 210 and the two second supporting surfaces 221 of the two second supporting members 220 are coplanar, so that the flexible display portion 420 is unfolded and supported by the two first supporting surfaces 211 of the two first supporting members 210. On the other hand, each first supporting member 210 also has a first back surface 212 relative to the first supporting surface 211, and each second supporting member 220 also has a second back surface 222 relative to the second supporting surface 221. In the unfolded state, the two first back surfaces 212 of the two first supporting members 210 and the two second back surfaces 222 of the two second supporting members 220 are located on the same reference plane S.

As shown in FIG. 5C and FIG. 6C , in the folded state, the two first supporting surfaces 211 of the two first supporting members 210 face each other, and the angle A3 between the two first supporting surfaces 211 is a sharp angle. In addition, the first supporting surface 211 of each first supporting member 210 is inclined to the second supporting surface 221 of the corresponding second supporting member 220, wherein the angle A4 between the first supporting surface 211 and the second supporting surface 221 is a blunt angle and greater than 180 degrees.

As shown in Figure 5C and Figure 6C, in the folded state, the two second support surfaces 221 of the two second support members 220 are parallel to each other, and the two first support surfaces 211 of the two first support members 210 are The distance between the two second supporting members 220 gradually increases in the direction D1 of the base 100 to form a collapse space 201 that is narrow at the top and wide at the bottom.

As shown in FIG. 5C and FIG. 6C , in the folded state, a first angle A1 is formed between the first back surface 212 of each first supporting member 210 and the reference plane S, and a second angle A2 smaller than the first angle A1, for example 90 degrees, is formed between the second back surface 222 of each second supporting member 220 and the reference plane S.

7A to 7C are top views of the angle positioning structure of the foldable electronic device of an embodiment of the present invention when it is transformed from an unfolded state to a folded state. Referring to FIG. 3B and FIG. 7A to FIG. 7C or FIG. 3C and FIG. 7A to FIG. 7C, each first torque positioning portion 521 has a first concave-convex surface 522, and each second torque positioning portion 531 has a second concave-convex surface 532. In detail, the first concave-convex surface 522 of each first torque positioning portion 521 contacts the second concave-convex surface 532 of the corresponding second torque positioning portion 531, and the surface profile of the first concave-convex surface 522 matches the surface profile of the second concave-convex surface 532.

In the process of converting from the unfolded state to the folded state, the second concave-convex surface 532 of each second torque positioning portion 531 contacts the first concave-convex surface 522 of the corresponding first torque positioning portion 521 and slides relative to the first concave-convex surface 522 of the corresponding first torque positioning portion 521. Specifically, the two second torque positioning portions 531 first push the two first torque positioning portions 521, so that the two springs 540 are squeezed by the sliding first positioning member 520 and elastically deformed. Then, the elastic restoring force of the two springs 540 pushes the first positioning member 520 to slide toward the two second positioning members 530, so that the two first torque positioning parts 521 are engaged with the two second torque positioning parts 531, for example, the first concave-convex surface 522 of each first torque positioning part 521 is attached to the second concave-convex surface 532 of the corresponding second torque positioning part 531 to be fixed in the folded state.

FIG. 8 is a schematic diagram of the synchronous transmission structure of the foldable electronic device according to an embodiment of the present invention. Please refer to FIG. 4B, FIG. 4C and FIG. 8. The two first gears 610 are located between the two transmission parts 631 of the two transmission members 630. In addition, each second gear 620 extends from the rack portion 632 of the corresponding transmission part 631 to the corresponding first gear 610, or in other words, the opposite ends of each second gear 620 are respectively meshed with the corresponding transmission part. The rack portion 632 of 631 and the corresponding first gear 610 .

In summary, since the first folding structure and the second folding structure slide around the same axis, and the first supporting structure and the second supporting structure rotate around the same axis, it is not only helpful to reduce the thickness of the folding electronic device in the folded state, but also to improve the fit of the folding electronic device in the folded state, so as to facilitate the user to carry or store. On the other hand, the folding electronic device adopts a single-axis rotation design, which helps to reduce the assembly space of components to meet the design requirements of lightness and thinness. In the folded state, the first supporting member of the first supporting structure, the first supporting member of the second supporting structure and the base can form a narrow upper and wide lower contraction space to accommodate the flexible display portion that is deformed and has a teardrop shape, thereby preventing the flexible display portion from being damaged due to excessive squeezing.

Although the present invention has been disclosed as above by the embodiments, they are not intended to limit the present invention. Any person with ordinary knowledge in the relevant technical field can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be defined by the scope of the attached patent application.

10: Folding electronic device 11: First housing 12: Second housing 100: Base 101: Bottom housing 110a, 110b: Arc-shaped slide grooves 111: First limiting protrusions 112: Second limiting protrusions 200a: First supporting structure 200b: Second supporting structure 201: Compressed space 210: First supporting member 211: First supporting surface 212: First back surface 220: Second supporting member 221: Second supporting surface 222: Second back surface 300a: First folding structure 300b: Second folding structure 310: First linking member 311: First arc-shaped sliding portion 311a, 321a: center of curvature 312: first positioning protrusion 320: second linking member 321: second arc-shaped sliding portion 322: second positioning protrusion 400: flexible screen 410: fixed display portion 420: flexible display portion 500: angle positioning structure 510: bracket 511: shaft 520: first positioning member 521: first torque positioning portion 522: first concave-convex surface 530: second positioning member 531: second torque positioning portion 532: second concave-convex surface 533: sliding portion 540: spring 600: synchronous transmission structure 610: first gear 620: second gear 630: transmission member 631: transmission portion 632: Tooth part A1: First angle A2: Second angle A3, A4: Intersection angle AX: Axis D1, D2: Direction I-I, J-J, K-K, L-L: Line segment R: Area S: Reference plane S1: First sliding stroke S2: Second sliding stroke

FIG. 1A is a schematic diagram of a foldable electronic device of an embodiment of the present invention. FIG. 1B is a schematic diagram of the foldable electronic device of FIG. 1A with the retractable screen removed. FIG. 1C is a first exploded schematic diagram of FIG. 1B. FIG. 1D is a second exploded schematic diagram of FIG. 1B. FIG. 1E is a schematic diagram of FIG. 1B at another viewing angle. FIG. 1F is a first exploded schematic diagram of FIG. 1E. FIG. 1G is an enlarged schematic diagram of region R in FIG. 1F. FIG. 1H is a second exploded schematic diagram of FIG. 1E. FIG. 2A is a schematic diagram of the folding structure of FIG. 1D. FIG. 2B and FIG. 2C are exploded schematic diagrams of the folding structure of FIG. 2A at two different viewing angles. FIG. 3A is a schematic diagram of the angle positioning structure of FIG. 1D. FIG. 3B and FIG. 3C are exploded schematic diagrams of the angle positioning structure of FIG. 3A at two different viewing angles. FIG. 4A is a schematic diagram of the synchronous transmission structure of FIG. 1D. FIG. 4B and FIG. 4C are exploded schematic diagrams of the synchronous transmission structure of FIG. 4A at two different viewing angles. FIG. 5A to FIG. 5C are side schematic diagrams of a foldable electronic device of an embodiment of the present invention when it is transformed from an unfolded state to a folded state. FIG. 6A is a top schematic diagram of the foldable electronic device of FIG. 5A with the retractable screen removed. FIG. 6B is a cross-sectional schematic diagram along line segment I-I of FIG. 6A. FIG. 6C is a cross-sectional schematic diagram of FIG. 6B transformed into a folded state. FIG. 6D is a cross-sectional schematic diagram along line segment J-J of FIG. 6A. FIG. 6E is a cross-sectional schematic diagram of FIG. 6D transformed into a folded state. FIG. 6F is a cross-sectional schematic diagram along line segment K-K of FIG. 6A. FIG6G is a cross-sectional schematic diagram of FIG6F converted to a folded state. FIG6H is a cross-sectional schematic diagram of FIG6A along line segment L-L. FIG6I is a cross-sectional schematic diagram of FIG6H converted to a folded state. FIG7A to FIG7C are top-view schematic diagrams of the angle positioning structure of a foldable electronic device of an embodiment of the present invention converted from an unfolded state to a folded state. FIG8 is a schematic diagram of a synchronous transmission structure of a foldable electronic device of an embodiment of the present invention.

10: Foldable electronic devices

11: First chassis

12:Second chassis

100: Base

200a: First support structure

200b: Second supporting structure

201: Shrinking Space

210: The first support

211: First support surface

220: Second support member

221: The second support

300a: First folding structure

300b: Second folding structure

310: First linkage

410: Fixed display unit

420: Flexible display unit

AX: axis

Claims (20)

A foldable electronic device including: a base; Two support structures are arranged oppositely on the base, wherein each support structure includes a first support member and a second support member, and the first support member is located between the base and the second support member ; Two folding structures are provided on the base, wherein the two support structures are respectively connected to the base through the two folding structures, and each of the folding structures includes a first linking member slidably connected to the base. and a second linkage contacting the first linkage, The second support member of each support structure is fixed to the first linkage member of the corresponding folding structure, and is pivotally connected to the first support member through the first linkage member, The second linking member of each folding structure is slidably connected to the base and slidably connected to the first supporting member of the corresponding supporting structure, In each folding structure, the first linkage is adapted to slide around an axis for a first sliding stroke, and the second linkage is adapted to slide around the axis for a second sliding stroke, and the first sliding stroke is greater than the second sliding stroke. ;as well as A flexible screen includes two fixed display parts and a flexible display part located between the two fixed display parts, wherein the flexible display part contacts the two first supports, and the two fixed display parts Don't be fixed to the two second supports. The foldable electronic device of claim 1, wherein each first support member has a first support surface, and each second support member has a second support surface, and the flexible display portion contacts the two There is a first supporting surface, and the two fixed display parts are respectively fixed on the two second supporting surfaces. The foldable electronic device as claimed in claim 2, wherein the two support structures are adapted to switch between an unfolded state and a folded state. In the unfolded state, the two first supporting surfaces and the two second The two support surfaces are coplanar. In the folded state, the two first support surfaces face each other, and an included angle between the two first support surfaces is an acute angle. The two second support surfaces face each other. and are parallel to each other. The foldable electronic device as claimed in claim 2, wherein the two support structures are adapted to switch between an unfolded state and a folded state. In the unfolded state, the two first supporting surfaces and the two second The two support surfaces are coplanar. In the folded state, the two first support surfaces face each other, and a distance between the two first support surfaces extends from the two second support members to a distance of the base. The direction gradually increases, and the two second supporting surfaces face each other and are parallel to each other. The foldable electronic device as claimed in claim 2, wherein the two support structures are adapted to switch between an unfolded state and a folded state. In the unfolded state, the two first supporting surfaces and the two second The two support surfaces are coplanar. In the folded state, the two first support surfaces face each other, and the first support surface of each first support member is inclined to the second support surface of the corresponding second support member. The two second supporting surfaces face each other and are parallel to each other. A foldable electronic device as described in claim 2, wherein the two supporting structures are suitable for switching between an unfolded state and a folded state, in the unfolded state, the two first supporting surfaces are coplanar with the two second supporting surfaces, in the folded state, the two first supporting surfaces face each other, and an angle between the first supporting surface of each first supporting member and the second supporting surface of the corresponding second supporting member is greater than 180 degrees, and the two second supporting surfaces face each other and are parallel to each other. A foldable electronic device as described in claim 2, wherein the two supporting structures are suitable for switching between an unfolded state and a folded state. In the folded state, the two first supporting surfaces face each other and form a space with the base for accommodating the flexible display portion. The flexible display portion is flexed and deformed in the space and takes a teardrop shape. The foldable electronic device of claim 2, wherein each first support member further has a first back surface relative to the first support surface, and each second support member further has a first back surface relative to the second support surface. A second back side of the support surface, the two support structures are suitable for switching between an unfolded state and a folded state. In the unfolded state, the two first back sides and the two second back sides are located on the same reference plane on, in the folded state, there is a first angle between the first back surface of each first support member and the reference surface, and between the second back surface of each second support member and the reference surface having a second angle less than the first angle. A foldable electronic device as described in claim 8, wherein the second angle is equal to 90 degrees. A foldable electronic device as described in claim 1, wherein the first connecting member of each folding structure includes a first arcuate sliding portion, and the second connecting member includes a second arcuate sliding portion contacting the first arcuate sliding portion, the base has two arcuate sliding grooves alternately arranged along a direction parallel to the axis, and the first arcuate sliding portion of the first connecting member of each folding structure and the second arcuate sliding portion of the second connecting member are slidably disposed in a corresponding arcuate sliding groove. A foldable electronic device as described in claim 10, wherein the first linking member of each folding structure further includes a first positioning protrusion located on the first arc-shaped sliding portion, and the second linking member further includes a second positioning protrusion located on the second arc-shaped sliding portion, and the base is provided with a first limiting protrusion and a second limiting protrusion in each of the arc-shaped slide grooves, and the first limiting protrusion and the second limiting protrusion in each of the arc-shaped slide grooves are respectively located on one sliding path of the first positioning protrusion of the first linking member of the corresponding folding structure and on another sliding path of the second positioning protrusion of the second linking member. A foldable electronic device as described in claim 11, wherein the first arc-shaped sliding portion of the first connecting member and the second arc-shaped sliding portion of the second connecting member of each folding structure slide synchronously in the corresponding arc-shaped sliding groove, and the first positioning protrusion and the second positioning protrusion slide toward the first limiting protrusion and the second limiting protrusion respectively, the second positioning protrusion and the first positioning protrusion contact the second limiting protrusion and the first limiting protrusion successively, and the second arc-shaped sliding portion and the first arc-shaped sliding portion stop sliding successively. A foldable electronic device as described in claim 10, wherein a curvature center of the first arc-shaped sliding portion of the first linking member of each folding structure and another curvature center of the second arc-shaped sliding portion of the second linking member fall on the axis. The foldable electronic device as described in claim 1 further includes: An angle positioning structure is provided on the base and located on one side of the folding structure. The two support structures are connected to the base through the angle positioning structure. The angle positioning structure includes: A bracket is fixed to the base and includes two shaft parts arranged side by side; A first positioning member includes two first torsion positioning parts, and the two first torsion positioning parts are slidably sleeved on the two shaft parts respectively; Two second positioning parts are respectively slidably connected to the two second supporting parts. Each second positioning part includes a second torsion positioning part, and the two second torsion positioning parts are respectively rotatably sleeved on the Two shaft parts respectively contact the two first torsion positioning parts; and Two springs are respectively sleeved on the two shaft parts and respectively contact the two first torsion positioning parts. The two first torsion positioning parts are located between the two second torsion positioning parts and the two springs. . The foldable electronic device of claim 14, wherein each first torsion positioning portion has a first concave and convex surface, and each of the second torsion positioning portions has a second concave and convex surface, and each of the first torsion positioning portions has a second concave and convex surface. The first concave-convex surface of the positioning part contacts the corresponding second concave-convex surface of the second torsion positioning part, and the first concave-convex surface matches the second concave-convex surface. The foldable electronic device as described in claim 1 further includes: A synchronous transmission structure, disposed on the base and located on one side of the foldable structure, the two supporting structures are connected to the base through the synchronous transmission structure, and the synchronous transmission structure includes: Two first gears disposed in parallel, pivoted on the base and meshed with each other; Two second gears disposed in parallel, pivoted on the base, and the two second gears are respectively meshed with the two first gears; and Two transmission members are fixed to the two second supporting members respectively, and the two second supporting members are pivotally connected to the two first supporting members respectively through the two transmission members, wherein each of the transmission members includes a transmission part slidably connected to the base and a gear part located on the transmission part, and the two gear parts are respectively engaged with the two second gears. A foldable electronic device as described in claim 16, wherein the transmission portion of each transmission member is an arc-shaped transmission portion. The foldable electronic device as claimed in claim 16, wherein the two transmission parts of the two transmission members are alternately arranged along a direction parallel to the axis. The foldable electronic device as claimed in claim 16, wherein the two first gears are located between the two transmission parts. A foldable electronic device comprises: a base; two support structures disposed on the base opposite to each other, wherein each support structure comprises a first support member and a second support member, and the first support member is located between the base and the second support member; two first folding structures disposed on opposite sides of the base, and one support structure is connected to the base through the two first folding structures; two second folding structures disposed on opposite sides of the base and located between the two first folding structures, and the other support structure is connected to the base through the two second folding structures, Each of the first folding structures and each of the second folding structures includes a first link slidably connected to the base and a second link in contact with the first link. The second support member of one of the support structures is fixedly connected to the two first links of the two first folding structures and is pivotally connected to the first support member through the two first links. The second support member of the other support structure is fixedly connected to the two first links of the two second folding structures and is pivotally connected to the first support member through the two first links. The two second connecting members of the two first folding structures are slidably connected to the base and to the first supporting member of one supporting structure, and the two second connecting members of the two second folding structures are slidably connected to the base and to the first supporting member of another supporting structure. The first connecting member of each first folding structure and each second folding structure is suitable for sliding a first sliding stroke around an axis, and the second connecting member is suitable for sliding a second sliding stroke around the axis, and the first sliding stroke is greater than the second sliding stroke; A flexible screen includes two fixed display parts and a flexible display part located between the two fixed display parts, wherein the flexible display part contacts the two first supporting members, and the two fixed display parts are respectively fixed to the two second supporting members; Two angle positioning structures are arranged on the base, wherein the two supporting structures are connected to the base through the two angle positioning structures, and the two angle positioning structures are located between the two second folding structures; and A synchronous transmission structure is arranged on the base, wherein the two supporting structures are connected to the base through the synchronous transmission structure, and the synchronous transmission structure is located between the two angle positioning structures.

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