Folding device and electronic device

Abstract

The application discloses a folding device and an electronic device. The folding device is used for carrying a flexible display screen. The flexible display screen comprises a first part and a second part. The folding device comprises a first carrying assembly, a second carrying assembly, a base, a first elastic assembly and a second elastic assembly. The first carrying assembly is used for carrying the first part. The second carrying assembly is used for carrying the second part. The base is rotationally connected to the first carrying assembly and the second carrying assembly. The first elastic assembly is rotationally connected to the first carrying assembly and the base and is elastically compressed between the first carrying assembly and the base. The second elastic assembly is rotationally connected to the second carrying assembly and the base and is elastically compressed between the second carrying assembly and the base. The first carrying assembly and the second carrying assembly can respectively drive the first part of the flexible display screen to be fully unfolded relative to the second part, or to be fully closed, or to be maintained in a preset angle unfolding state.

Description

TECHNICAL FIELD

[0001] The application relates to the field of electronic devices, in particular to a folding device and an electronic device. BACKGROUND

[0002] In the current foldable mobile phone, the flexible display screen of the mobile phone is folded to realize the miniaturization of the mobile phone and facilitate the user to carry the mobile phone. Generally, the flexible display screen of the foldable mobile phone has a large tension and a large bending restoring force, so that the tension of the flexible display screen cannot drive the mobile phone to completely close in the folded closed state, and the bending restoring force of the flexible display screen cannot drive the mobile phone to bend and unfold, so that the foldable mobile phone cannot be completely closed or completely unfolded, resulting in a low user experience. SUMMARY

[0003] The application provides a folding device and an electronic device which can solve the problem of being unable to completely close or completely unfold.

[0004] The application provides a folding device for carrying a flexible display screen, the flexible display screen comprising a first part and a second part which can be unfolded or closed relative to the first part, wherein the folding device comprises:

[0005] a first carrying assembly for carrying the first part;

[0006] a second carrying assembly for carrying the second part;

[0007] a base rotatably connected to the first carrying assembly and the second carrying assembly;

[0008] a first elastic assembly rotatably connected to the first carrying assembly and the base and elastically compressed between the first carrying assembly and the base;

[0009] a second elastic assembly rotatably connected to the second carrying assembly and the base and elastically compressed between the second carrying assembly and the base;

[0010] Wherein, the first carrying assembly and the second carrying assembly can respectively drive the first part to completely unfold, or completely close, or maintain a preset angle unfolded state relative to the second part under the elastic force of the first elastic assembly and the second elastic assembly respectively.

[0011] The application also provides an electronic device, wherein the electronic device comprises a flexible display screen and a folding device, the flexible display screen comprising a first part and a second part which can be unfolded or closed relative to the first part; the folding device comprising:

[0012] a first bearing assembly, the first bearing assembly bearing the first part;

[0013] a second bearing assembly, the second bearing assembly bearing the second part;

[0014] a base, rotatably connected to the first bearing assembly and the second bearing assembly;

[0015] a first elastic assembly, rotatably connected to the first bearing assembly and the base, and elastically compressed between the first bearing assembly and the base;

[0016] a second elastic assembly, rotatably connected to the second bearing assembly and the base, and elastically compressed between the second bearing assembly and the base;

[0017] wherein the first bearing assembly and the second bearing assembly can respectively drive the first part to be fully unfolded relative to the second part, or fully closed, or maintained in a preset angle unfolded state, under the elastic force of the first elastic assembly and the second elastic assembly respectively.

[0018] The folding device and the electronic device provided by the embodiments of the present application, by comprising the first elastic assembly and the second elastic assembly, the first elastic assembly and the second elastic assembly respectively exerting elastic force on the first bearing assembly and the second bearing assembly, so that the first bearing assembly and the second bearing assembly can respectively drive the first part of the flexible display screen to be fully unfolded relative to the second part, or fully closed, or maintained in a preset angle unfolded state. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the application, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative effort based on these drawings.

[0020] Figure 1 is a cross-sectional schematic view of an electronic device provided by the present application;

[0021] Figure 2 is a partial cross-sectional schematic view of an electronic device provided by the present application in a half-unfolded state;

[0022] Figure 3 is a partial cross-sectional schematic view of an electronic device provided by the present application in a fully unfolded state;

[0023] Figure 4 is a partial cross-sectional schematic view of an electronic device provided by the present application in a fully closed state;

[0024] Figure 5 is a partial perspective view of an electronic device provided by the present application;

[0025] Figure 6 is a partial perspective view of an electronic device provided by the present application;

[0026] Figure 7 is a partial perspective view of an electronic device provided by the present application;

[0027] Figure 8 is a partial perspective view of an electronic device provided by the present application; Figure 6 is a VII enlarged view of the electronic device of

[0028] Figure 9 is a partial view of an electronic device provided by another embodiment of the present application;

[0029] Figure 10 is a partial view of an electronic device provided by another embodiment of the present application. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

[0031] Referring to Figure 1 , the present application provides an electronic device 1000, which comprises a folding device 900 and a flexible display screen 800. The flexible display screen 800 comprises a first part 810 and a second part 820 which can be unfolded or closed relative to the first part 810. The folding device 900 carries the flexible display screen 800. The folding device 900 comprises:

[0032] a first carrying assembly 100 for carrying the first part 810;

[0033] a second carrying assembly 200 for carrying the second part 820;

[0034] a base 300 which is rotatably connected to the first carrying assembly 100 and the second carrying assembly 200;

[0035] a first elastic assembly 400 which is rotatably connected to the first carrying assembly 100 and the base 300 and is elastically compressed between the first carrying assembly 100 and the base 300;

[0036] a second elastic assembly 500 which is rotatably connected to the second carrying assembly 200 and the base 300 and is elastically compressed between the second carrying assembly 200 and the base 300;

[0037] The first bearing assembly 100 and the second bearing assembly 200 can be unfolded or closed to each other to drive the flexible display screen 800 to fold or unfold, so as to realize two use states.

[0038] It can be understood that the electronic device 900 can be unfolded or closed to each other by the first bearing assembly 100 and the second bearing assembly 200, so as to drive the flexible display screen 800 to fold or unfold, so as to realize two use states. The electronic device 900 can be a mobile phone, a tablet computer, a notebook computer or the like.

[0039] The first bearing assembly 100 comprises a first plate 110 and two first rotating arms 120 fixed to edges of the first plate 110. The two first rotating arms 120 are respectively fixed to opposite edges of the first plate 110. One end of the first rotating arm 120 protrudes relative to the first plate 110 and is rotationally connected to the base 300. The first plate 110 can rotate relative to the base 300 through the two first rotating arms 120. The first plate 110 can bear the first part 810 of the flexible display screen 800.

[0040] The second bearing assembly 200 comprises a second plate 210 and two second rotating arms 220 fixed to edges of the second plate 210. The two second rotating arms 220 are respectively fixed to opposite edges of the second plate 210. One end of the second rotating arm 220 protrudes relative to the second plate 210 and is rotationally connected to a side of the base 300 away from the first bearing assembly 100. The rotation shaft of the second rotating arm 220 is arranged in parallel with the rotation shaft of the first rotating arm 210. The first rotating arm 120 and the second rotating arm 220 can be synchronously rotated through a gear assembly, so that the first bearing assembly 100 can be synchronously rotated relative to the second bearing assembly 200. The second plate 210 can rotate relative to the base 300 through the two second rotating arms 220. The second plate 210 can bear the second part 820 of the flexible display screen 800.

[0041] The base 300 comprises a rotating shaft housing 310 and a bearing 320 fixed to two ends of the rotating shaft housing 310. The rotating shaft housing 310 is roughly in the shape of "U" in cross section. The inner side of the rotating shaft housing 310 is used to accommodate the curved part of the flexible display screen 800 after folding. The bearing 320 is provided with a first rotating shaft 321 and a second rotating shaft 322 arranged side by side relative to the first rotating shaft 321. The first rotating shaft 321 rotationally connects the first rotating arm 120, and the second rotating shaft 322 rotationally connects the second rotating arm 220.

[0042] The electronic device 1000 further comprises a first functional device 910 and a second functional device 920. The first functional device 910 and the second functional device 920 are fixed on the first plate member 110 and the second plate member 210 respectively, and the flexible display screen 800 covers the first functional device 910 and the second functional device 920. The electronic device 1000 can fix a plurality of the first functional devices 910 on the first plate member 110. The first functional device 910 can be a battery, a mainboard, a speaker, a receiver, or the like. The electronic device 1000 can fix a plurality of the second functional devices 920 on the second plate member 210. The second functional device 920 can be a camera module, an antenna, a memory, a power connector, or an earphone connector, or the like. The electronic device 1000 further comprises a circuit board connecting the first functional device 910 and the second functional device 920. The circuit board can be a flexible circuit board. The circuit board provides electrical signals for the first functional device 910 and the second functional device 920.

[0043] The first elastic assembly 400 and the second elastic assembly 500 are always in a compressed state. The first elastic assembly 400 applies elastic tension to the first bearing assembly 100 and the base 300. The second elastic assembly 500 applies elastic tension to the second bearing assembly 200 and the base 300. The rotation axis of the first elastic assembly 400 relative to the base 300 is parallel to and offset from the first rotation shaft 321, and the rotation axis of the second elastic assembly 500 relative to the base 300 is parallel to and offset from the second rotation shaft 322, so that the elastic force of the first elastic assembly 400 and the second elastic assembly 500 can drive the first bearing assembly 100 and the second bearing assembly 200 to expand or close to each other respectively.

[0044] Please refer to Figure 2It can be understood that the first bearing assembly 100 is unfolded to a half unfolded state relative to the second bearing assembly 200. The first elastic assembly 400 applies a first elastic torque A to the first bearing assembly 100. The second elastic assembly 500 applies a second elastic torque B to the second bearing assembly 200. The elastic modulus of the first elastic assembly 400 is equal to the elastic modulus of the second elastic assembly 500, that is, the size of the first elastic torque A is equal to the size of the second elastic torque B. Taking the illustrated embodiment as an example, in the figure, the X direction and the Y direction are taken as reference directions to facilitate the description of the force conditions of the first bearing assembly 100 and the second bearing assembly 200. The first elastic torque A can be decomposed into a first horizontal torque A1 in the X direction and a first vertical torque A2 in the Y direction. The second elastic torque B can be decomposed into a second horizontal torque B1 in the X direction and a second vertical torque B2. The directions of the first horizontal torque A1 and the second horizontal torque B1 are opposite, and the first horizontal torque A1 and the second horizontal torque B1 cancel each other out, so that the first bearing assembly 100 and the second bearing assembly 200 do not move relative to each other in the horizontal direction. The first vertical torque A2 and the second vertical torque B2 can be superimposed, that is, the elastic forces of the first elastic assembly 400 and the second elastic assembly 500 mainly act in the Y direction on the first bearing assembly 100 and the second bearing assembly 200. Since the first bearing assembly 100 and the second bearing assembly 200 respectively bear the first part 810 and the second part 820, the first part 810 and the second part 820 have a relative opening restoring force. That is, the first bearing assembly 100 and the second bearing assembly 200 respectively bear a first restoring force C1 of the first part 810 and a second opening restoring force C2 of the second part 820 in the Y direction.

[0045] As shown in Figure 4 When the first bearing assembly 100 and the second bearing assembly 200 are at a first preset included angle, the first vertical torque A2 plus the second vertical torque B2 is greater than the first restoring force C1 plus the second restoring force C2, and then the first bearing assembly 100 and the second bearing assembly 200 are driven to rotate in the Y direction to a completely closed state.

[0046] As shown in Figure 2 When the first bearing assembly 100 and the second bearing assembly 200 are at a second preset included angle, the first vertical torque A2 plus the second vertical torque B2 is equal to the first restoring force C1 plus the second restoring force C2, and then the first bearing assembly 100 and the second bearing assembly 200 are in force balance in the Y direction, and can maintain a stable half unfolded state.

[0047] As shown in Figure 3As shown, when the first bearing assembly 100 and the second bearing assembly 200 are at a third preset included angle, the first vertical moment A2 plus the second vertical moment B2 is less than the first restoring force C1 plus the second restoring force C2, and the first bearing assembly 100 and the second bearing assembly 200 can be rotated to fully unfold in the Y direction under the opening driving force.

[0048] Please refer to Figure 5 、 Figure 6 and Figure 7 , further, the folding device 1000 further comprises:

[0049] The first movable assembly 600 comprises a first support 610 rotatably connected to the first bearing assembly 100 and a first rotating member 620 rotatably connected to the base 300, and the first support 610 can be telescopic relative to the first rotating member 620.

[0050] The second movable assembly 700 comprises a second support 710 rotatably connected to the second bearing assembly 200 and a second rotating member 720 rotatably connected to the base 300, and the second support 710 can be telescopic relative to the second rotating member 720.

[0051] The first elastic assembly 400 is elastically compressed between the first support 610 and the base 300.

[0052] The second elastic assembly 500 is elastically compressed between the second support 710 and the base 300.

[0053] In the embodiment, the first support 610 is located between the two first rotating arms 120. The first support 610 is slidably connected to the edge of the first rotating member 620, so that the first support 610 can be telescopic relative to the first rotating member 620. The first rotating member 620 is rotatably connected to the edge of the rotating shaft housing 310. The side edge of the first support 610 is rotatably connected to the first rotating arm 120. The first support 610 forms a structure for supporting the flexible display screen 800. The first support 610 is substantially in the form of a plate to increase the support area ratio of the flexible display screen 800. The first support 610 can support the first part 810 of the flexible display screen 800 together with the first plate 110.

[0054] Please refer to Figure 6 and Figure 8In the embodiment, the second support 710 is located between the two second rotating arms 220. The second support 710 is slidably connected to the edge of the second rotating member 720, so that the first support 610 can be extended or retracted relative to the first rotating member 620. The first rotating member 620 is rotatably connected to the edge of the rotating shaft housing 310. The first support 610 is rotatably connected to the side edge of the first rotating arm 120. The second support 710 forms a structure for supporting the flexible display screen 800. The second support 710 is substantially in the form of a plate, so as to increase the supporting area ratio of the flexible display screen 800. The second support 710 can support the second part 820 of the flexible display screen 800 together with the second plate 210.

[0055] One end of the first elastic assembly 400 is abutting against the first support 610, and the other end is rotatably connected to the rotating shaft housing 310. The rotation axis of the first elastic assembly 400 relative to the rotating shaft housing 310 is coaxially arranged with the rotation axis of the first rotating member 620. The elastic force of the first elastic assembly 400 is transmitted to the first bearing member 110 through the first support 610. Of course, in other embodiments, the end of the first elastic assembly 400 away from the first support 610 can be abutting against the first rotating member 620, and rotate together with the first rotating member 620 relative to the rotating shaft housing 310.

[0056] One end of the second elastic assembly 500 is abutting against the second support 710, and the other end is rotatably connected to the rotating shaft housing 310. The rotation axis of the second elastic assembly 500 relative to the rotating shaft housing 310 is coaxially arranged with the rotation axis of the second rotating member 720. The elastic force of the second elastic assembly 500 is transmitted to the second bearing member 210 through the second support 710. Of course, in other embodiments, the end of the second elastic assembly 500 away from the second support 710 can be abutting against the second rotating member 720, and rotate together with the second rotating member 720 relative to the rotating shaft housing 310.

[0057] Further, the first elastic assembly 400 includes a first abutting member 410 fixed to the first support 610, a first movable member 420 rotatably connected to the base 300, and a first elastic member 430 elastically compressed between the first abutting member 410 and the first movable member 420; the second elastic assembly 500 includes a second abutting member 510 fixed to the second support 710, a second movable member 520 rotatably connected to the base 300, and a second elastic member 530 elastically compressed between the second abutting member 510 and the second movable member 520.

[0058] In this embodiment, the first holding member 410 is fixed to the first support member 610 away from the flexible display screen 800. The first holding member 410 is located at the edge of the first support member 610 away from the base 300. The first movable member 420 is rotatably connected to the edge of the rotating shaft housing 310 and can be arranged side by side with the first rotating member 620. One end of the first movable member 420 is rotatably connected to the rotating shaft housing 310, and the other end is fixedly connected to the first elastic member 430. The second holding member 510 is fixed to the second support member 710 away from the flexible display screen 800. The second holding member 510 is located at the edge of the second support member 710 away from the base 300. The second movable member 520 is rotatably connected to the edge of the rotating shaft housing 310 and can be arranged side by side with the second rotating member 720. One end of the second movable member 520 is rotatably connected to the rotating shaft housing 310, and the other end is fixedly connected to the second elastic member 430.

[0059] In one embodiment, the first movable member 420 includes a first adapter block 421 and a first guide rod 422 fixed to the first adapter block 421. The first adapter block 421 is rotatably connected to the edge of the rotating shaft housing 310. The first guide rod 422 extends in a direction perpendicular to the rotation axis of the first adapter block 421. The first elastic member 430 is a rectangular spring. One end of the first elastic member 430 is sleeved on the first guide rod 422 and can be partially folded and compressed on the first guide rod 422. The other end of the first elastic member 430 can abut against the first adapter block 421. The first holding member 410 includes a first blocking block 411 fixed to the first support member 610 and a first insertion hole 412 arranged on the first blocking block 411. The first blocking block 411 is close to the rotation axis of the first bearing assembly 100 rotatably connected to the first support member 610. The other end of the first elastic member 430 away from the first guide rod 422 is inserted into the first insertion hole 412 and can abut against the first blocking block 411.

[0060] The first elastic member 430 provides a linearly expanded elastic restoring force, so that the first elastic member 430 can effectively transmit the elastic force to the first support member 610 and the rotating shaft housing 310 through the first adapter block 421 and the first blocking block 411, respectively, to avoid the reduction of the elastic force. The first elastic member 430 is stably connected to the first support member 610 and the rotating shaft housing 310, thereby increasing the structural stability of the folding device 900.

[0061] The second movable element 520 comprises a second adapter block 521 and a second guide rod 522 fixed to the second adapter block 521. The second adapter block 521 is rotationally connected to the edge of the rotating shaft housing 310 opposite to the first adapter block 421. The second guide rod 522 extends along the direction perpendicular to the rotation axis of the second adapter block 521. The second elastic element 530 is a rectangular spring. One end of the second elastic element 530 is sleeved on the second guide rod 522 and can be partially folded and compressed on the second guide rod 522. The other end of the second elastic element 530 can abut against the second adapter block 521. The second abutting element 510 comprises a second abutting block 511 fixed to the second support element 710 and a second insertion hole 512 arranged on the second abutting block 511. The second abutting block 511 is close to the rotation axis of the second bearing assembly 200 rotationally connected to the second support element 710. The other end of the second elastic element 530 away from the second guide rod 522 is inserted into the second insertion hole 512 and can abut against the second abutting block 511.

[0062] In another embodiment, the first elastic element 430 is a butterfly spring, both ends of the first elastic element 430 are rotationally connected to the first abutting element 410, and the part between the two ends is rotationally connected to the first movable element 420, so as to provide the elastic force for the first movable element 420 to repel the first abutting element 410.

[0063] Specifically, the rotation axis of the first elastic element 430 rotationally connected to the first movable element 420 is substantially perpendicular to the first support element 610. The rotation axis of the first elastic element 430 rotationally connected to the first abutting element 410 is substantially perpendicular to the first support element 610. The first elastic element 430 is bent and deformed in the plane parallel to the first support element 610, so as to reduce the overall thickness of the folding device 900 and facilitate the deformation guidance of the first support element 610 to the first elastic element 430. Two first abutting elements 410 are arranged on the first support element 610, and both ends of the first elastic element 430 are respectively rotationally connected to the two first abutting elements 410. The first elastic element 430 is provided with a first sliding end 431 between the two ends. The first sliding end 431 is rotationally connected to the first movable element 420 and can slide relative to the first support element 610 with the first movable element 420. The two first abutting elements 410 are respectively located at both ends of the first support element 610 in the substantially length direction, so that the first elastic element 430 and the first support element 610 are structurally stable, and the first elastic element 430 is prevented from being separated from the first support element 610.

[0064] The second elastic member 530 is a butterfly spring, two ends of the second elastic member 530 are rotatably connected to the second resisting member 510, and a part between the two ends is rotatably connected to the second movable member 520, so as to provide the elastic force of the second movable member 520 repelling the second resisting member 510.

[0065] Specifically, the rotation axis of the second elastic member 530 rotatably connected to the second movable member 520 is substantially perpendicular to the second supporting member 710. The rotation axis of the second elastic member 530 rotatably connected to the second resisting member 510 is substantially perpendicular to the second supporting member 710. The second elastic member 530 is curved and deformed in a plane parallel to the second supporting member 710, so as to reduce the overall thickness of the folding device 900 and facilitate the deformation guidance of the second supporting member 710 to the second elastic member 530. The second supporting member 710 is provided with two second resisting members 510, and two ends of the second elastic member 530 are rotatably connected to the two second resisting members 510 respectively. The second elastic member 530 is provided with a second sliding end 531 between the two ends. The second sliding end 531 is rotatably connected to the second movable member 520 and can slide relative to the second supporting member 710 with the second movable member 520. The two second resisting members 510 are located at two ends of the second supporting member 710 in the substantially length direction, so that the second elastic member 530 and the second supporting member 710 are structurally stable, and the second elastic member 530 is prevented from being separated from the second supporting member 710.

[0066] In another embodiment, referring to Figure 10 , the first elastic member 430 includes a first rotation axis magnet 432 and a first resisting magnet 433 repelling the first rotation axis magnet 432. The first rotation axis magnet 432 repels the first resisting magnet 433 in a direction parallel to the first supporting member 610 and relative to the first rotating member 620. The first rotation axis magnet 432 and the first resisting magnet 433 are fixedly connected to the first movable member 420 and the first resisting member 410 respectively; the second elastic member 530 includes a second rotation axis magnet 532 and a second resisting magnet 533 repelling the second rotation axis magnet 532. The second rotation axis magnet 532 repels the second resisting magnet 533 in a direction parallel to the second supporting member 710 and relative to the second rotating member 720. The second rotation axis magnet 532 and the second resisting magnet 533 are fixedly connected to the second movable member 520 and the second resisting member 510 respectively.

[0067] The folding device comprises a first elastic component and a second elastic component, which respectively apply elastic forces to the first bearing component and the second bearing component, so that the first bearing component and the second bearing component can respectively drive the first part of the flexible display screen to be fully unfolded relative to the second part, or fully closed, or maintained in a preset angle unfolded state.

[0068] The above is the preferred embodiment of the application. It should be pointed out that, for those skilled in the art, without departing from the principles of the application, a number of improvements and refinements can be made, which are also considered within the scope of protection of the application.

Claims

1. A folding device for carrying a flexible display screen, the flexible display screen comprising a first portion and a second portion deployable or foldable relative to the first portion, characterized in that, The folding device comprises: a first bearing assembly for bearing the first part; a second bearing assembly for bearing the second part; a base rotatably connected to the first bearing assembly and the second bearing assembly; a first elastic assembly rotatably connected to the first bearing assembly and the base and elastically compressed between the first bearing assembly and the base; a second elastic assembly rotatably connected to the second bearing assembly and the base and elastically compressed between the second bearing assembly and the base; wherein the first bearing assembly and the second bearing assembly can respectively drive the first part to be fully unfolded relative to the second part, or fully closed, or maintained in a preset angle unfolded state under the elastic force of the first elastic assembly and the second elastic assembly, wherein the first elastic assembly and the second elastic assembly are always in a compressed state; The folding device further comprises: a first movable assembly comprising a first support rotatably connected to the first bearing assembly and a first rotating member rotatably connected to the base, the first support being telescopic relative to the first rotating member; a second movable assembly comprising a second support rotatably connected to the second bearing assembly and a second rotating member rotatably connected to the base, the second support being telescopic relative to the second rotating member; the first elastic assembly is elastically compressed between the first support and the base; the second elastic assembly is elastically compressed between the second support and the base.

2. The folding device of claim 1, wherein The first elastic assembly comprises a first abutting member fixed to the first support, a first movable member rotatably connected to the base, and a first elastic member elastically compressed between the first abutting member and the first movable member; the second elastic assembly comprises a second abutting member fixed to the second support, a second movable member rotatably connected to the base, and a second elastic member elastically compressed between the second abutting member and the second movable member.

3. The folding device of claim 2, wherein The rotation axis of the first movable member is coaxially arranged with the rotation axis of the first rotating member, and the rotation axis of the second movable member is coaxially arranged with the rotation axis of the second rotating member.

4. The folding device of claim 2, wherein The first movable member is provided with a first guide rod, the first abutting member is provided with a first insertion hole, the first elastic member is a rectangular spring, and the two ends of the first elastic member are respectively sleeved on the first guide rod and the first insertion hole; the second movable member is provided with a second guide rod, the second abutting member is provided with a second insertion hole, the second elastic member is a rectangular spring, and the two ends of the second elastic member are respectively sleeved on the second guide rod and the second insertion hole.

5. The folding device of claim 4, wherein The first holding member is provided with a first resisting block fixed to the first support, the first resisting block is close to the rotating shaft of the first bearing assembly and is rotatably connected to the first support, the first socket is fixed to the first resisting block, and one end of the first elastic member can abut against the first resisting block; the second holding member is provided with a second resisting block fixed to the second support, the second resisting block is close to the rotating shaft of the second bearing assembly and is rotatably connected to the second support, the second socket is fixed to the second resisting block, and one end of the second elastic member can abut against the second resisting block.

6. The folding apparatus of claim 2, wherein The first elastic member is a butterfly spring, both ends of the first elastic member are rotatably connected to the first holding member, and the part between the two ends of the first elastic member is rotatably connected to the first movable member, so as to provide the elastic force of the first movable member repelling the first holding member; the second elastic member is a butterfly spring, both ends of the second elastic member are rotatably connected to the second holding member, and the part between the two ends of the second elastic member is rotatably connected to the second movable member, so as to provide the elastic force of the second movable member repelling the second holding member.

7. The folding apparatus of claim 2, wherein The first elastic member comprises a first rotating shaft magnet and a first resisting magnet repelling the first rotating shaft magnet, and the first rotating shaft magnet and the first resisting magnet are fixedly connected to the first movable member and the first holding member respectively; the second elastic member comprises a second rotating shaft magnet and a second resisting magnet repelling the second rotating shaft magnet, and the second rotating shaft magnet and the second resisting magnet are fixedly connected to the second movable member and the second holding member respectively.

8. The folding device according to any one of claims 1 to 7, characterized in that The first bearing assembly and the second bearing assembly are synchronously rotatable relative to the base.

9. An electronic device, comprising: The electronic device comprises a flexible display screen and a folding device, the flexible display screen comprises a first part and a second part which can be unfolded or closed relative to the first part; The folding device comprises: A first bearing assembly, which carries the first part; A second bearing assembly, which carries the second part; A base, which is rotatably connected to the first bearing assembly and the second bearing assembly; A first elastic assembly, which is rotatably connected to the first bearing assembly and the base and is elastically compressed between the first bearing assembly and the base; A second elastic assembly, which is rotatably connected to the second bearing assembly and the base and is elastically compressed between the second bearing assembly and the base; Wherein, the first bearing assembly and the second bearing assembly can respectively drive the first part to be completely unfolded relative to the second part, or to be completely closed, or to be maintained in a preset angle unfolded state under the elastic force of the first elastic assembly and the second elastic assembly, and the first elastic assembly and the second elastic assembly are always in a compressed state; The folding device further comprises: The first movable assembly comprises a first support member rotatably connected to the first bearing assembly and a first rotating member rotatably connected to the base, the first support member is telescopic relative to the first rotating member, and the first support member and the first bearing assembly can jointly bear the first part; The second movable assembly comprises a second support member rotatably connected to the second bearing assembly and a second rotating member rotatably connected to the base, the second support member is telescopic relative to the second rotating member, and the second support member and the second bearing assembly can jointly bear the second part; The first elastic assembly is elastically compressed between the first support member and the base; The second elastic assembly is elastically compressed between the second support member and the base.

10. The electronic device of claim 9, wherein, The first bearing assembly comprises a first plate member and two first rotating arms fixed to the first plate member, the two first rotating arms are oppositely arranged, and the ends of the two first rotating arms are rotatably connected to the base; the first plate member can bear the first part; the second bearing assembly comprises a second plate member and two second rotating arms fixed to the second plate member, the two second rotating arms are oppositely arranged, and the ends of the two second rotating arms are rotatably connected to the base away from the first bearing assembly, and the rotating shafts of the second rotating arms are arranged in parallel with the rotating shafts of the first rotating arms; the second plate member can bear the second part.

11. The electronic device of claim 10, wherein, The base comprises a rotating shaft housing and bearing members fixed to the two ends of the rotating shaft housing, the inside of the rotating shaft housing can accommodate the curved part of the flexible display screen after folding, and the bearing members are rotatably connected to the first rotating arms and the second rotating arms.

12. The electronic device of claim 11, wherein, The end of the first elastic assembly away from the first bearing assembly is rotatably connected to the rotating shaft housing, and the end of the second elastic assembly away from the second bearing assembly is rotatably connected to the rotating shaft housing away from the first elastic assembly.

13. The electronic device of claim 11, wherein, The rotating shaft of the first elastic assembly is parallel to and staggered with the rotating shaft of the first rotating arm, and the rotating shaft of the second elastic assembly is parallel to and staggered with the rotating shaft of the second rotating arm.

14. The electronic device of claim 9, wherein, The first elastic assembly comprises a first abutting member fixed to the first support member, a first movable member rotatably connected to the base, and a first elastic member elastically compressed between the first abutting member and the first movable member; the second elastic assembly comprises a second abutting member fixed to the second support member, a second movable member rotatably connected to the base, and a second elastic member elastically compressed between the second abutting member and the second movable member.

15. The electronic device of claim 14, wherein, The first abutting member is fixed to the side of the first support member away from the flexible display screen, and the second abutting member is fixed to the side of the second support member away from the flexible display screen.

16. The electronic device of claim 14, wherein, The rotating shaft of the first movable member is coaxially arranged with the rotating shaft of the first rotating member, and the rotating shaft of the second movable member is coaxially arranged with the rotating shaft of the second rotating member.

17. The electronic device of claim 9, wherein, The electronic device further comprises a first functional device fixed to the first bearing assembly, and the flexible display screen covers the first functional device.

18. The electronic device of claim 17, wherein, The electronic device further comprises a second functional device fixed to the second bearing assembly and a circuit board connecting the first functional device and the second functional device, and the flexible display screen covers the second functional device and the circuit board.

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