Foldable module and foldable electronic device

Abstract

To provide a foldable module and a foldable electronic device. [Solution] A foldable module (1) is provided, including a first connecting part (20), a first pin (10), a first drive ring (30), and a first spring (40). A first pin hole is disposed in the first connecting part, and the first pin passes through the first drive ring, the first pin hole, and the first spring. A first protrusion (202) and a first recess (301) are disposed between the first drive ring and the first connecting part, and the first protrusion is located between the first spring and the first recess, or the first recess is located between the first spring and the first protrusion. When the first connecting part rotates, the first protrusion slides out of the first recess. During the folding or unfolding process, the first protrusion slides out of the first recess, providing a damping force for unfolding or folding.

Description

[Technical field]

[0001] This application claims priority to Chinese Patent Application No. 201910568672.5, entitled “FOLDABLE MODULE AND FOLDABLE ELECTRONIC DEVICE,” filed with the State Intellectual Property Office of the People's Republic of China on June 27, 2019, which is incorporated herein by reference in its entirety.

[0002] The present application relates to the field of electronic device technology, and in particular to foldable modules and foldable electronic devices. [Background technology]

[0003] With the gradual development of folding screen technology, folding electronic devices have emerged. The folding electronic devices generally include a first support piece, a second support piece, and a folding screen. The folding screen covers the first support piece and the second support piece, and the first support piece can be folded together with the second support piece or unfolded relative to the second support piece.

[0004] The first and second support pieces are usually connected using a folding module. The folding module includes a rotating shaft, an abutment spring, a first drive ring, and a second drive ring. The abutment spring, the first drive ring, and the second drive ring are sleeved on the rotating shaft. A first drive surface is arranged on a side wall of the rotating shaft, and a second drive surface is arranged on an inner wall of the first drive ring, and when the rotating shaft rotates, the first drive surface cooperates with the second drive surface to rotate the first drive ring. The first drive ring is arranged between the second drive ring and the abutment spring, and the abutment spring abuts against the first drive ring to press the first drive ring against the second drive ring. A convex portion is arranged on a surface of the first drive ring and facing the second drive ring, and a concave portion cooperating with the convex portion is arranged on the second drive ring. The rotating shaft and the first support piece are connected via a transmission, so that when the first support piece is twisted, the rotating shaft is driven to rotate, and the rotating shaft rotates the first drive ring, so that relative rotation occurs between the first drive ring and the second drive ring, and the convex portion slides out of the concave portion to provide a damping force, or the convex portion slides into the concave portion to realize automatic deployment or folding of the first support piece.

[0005] However, when the first support piece is twisted, the first drive surface of the rotating shaft and the second drive surface of the first drive ring rotate the first drive ring, and there is a gap between the first drive surface and the second drive surface, so the transmission precision is insufficient. Summary of the Invention

[0006] The present application aims to provide a foldable module and a foldable electronic device to solve a technical problem in the related art that when the first drive ring is rotated by the first drive surface and the second drive surface, there is a gap between the first drive surface of the rotating shaft and the second drive surface of the first drive ring, resulting in insufficient transmission accuracy.

[0007] According to a first aspect, the present application discloses a foldable module including a first connection part, a first pin, a first drive ring, and a first spring. A first pin hole is disposed in the first connection part, a first pin passes through the first drive ring, the first pin hole, and the first spring, a first protrusion and a first recess are disposed between the first drive ring and the first connection part, the first protrusion is located between the first spring and the first recess, or the first recess is located between the first spring and the first protrusion, and the first protrusion is embedded in the first recess; and when the first connection part rotates, the first protrusion slides out of the first recess.

[0008] Based on the above technical content, the first pin hole is disposed in the first connecting part, the first pin passes through the first driving ring, the first pin hole, and the first spring, the first convex part and the first recess are disposed between the first driving ring and the first connecting part, and the first spring abuts against the first driving ring or the first connecting part, so that the first convex part is embedded in the first recess. In the folding or unfolding process, the first convex part slides out of the first recess to provide a damping force for unfolding or folding. Compared with the method in which the first driving surface of the rotating shaft cooperates with the second driving surface of the first driving ring to rotate the first driving ring, the first connecting part can directly drive the first convex part and the first recess to move relative to each other, thereby improving the transmission accuracy.

[0009] In one embodiment, the foldable module further includes a second connection part, a second pin, a second drive ring, and a second spring, the second pin hole is disposed in the second connection part, the second pin passes through the second drive ring, the second pin hole, and the second spring, the second protrusion and the second recess are disposed between the second drive ring and the second connection part, the second protrusion is located between the second spring and the second recess, or the second recess is located between the second spring and the second protrusion, and the second protrusion is embedded in the second recess.

[0010] In one embodiment, the first pin and the second pin are arranged parallel and spaced apart, the first toothed structure is disposed on the first connecting piece and the second toothed structure is disposed on the second connecting piece, the first toothed structure meshes with the second toothed structure; and when the second connecting piece rotates, the second protrusion slides out of the second recess.

[0011] In this arrangement, the second connection part can be rotated when the first connection part rotates, and the rotation angle of the first connection part and the rotation angle of the second connection part are the same. Compared with the case where only the first connection part rotates, when the second connection part and the first connection part rotate simultaneously, the time required for rotation to the folded state or the unfolded state can be shortened, and rapid folding and unfolding can be realized. In addition, the first drive ring and the first connection part can rotate relative to the first pin. Therefore, during installation, the first pin only needs to pass through the first drive ring and the first pin hole, and there is no need to control the position of the first drive ring and the first connection part relative to the first pin. This makes installation easier. Similarly, the second drive ring and the second connection part can rotate relative to the second pin. Therefore, during installation, the second pin only needs to pass through the second drive ring and the second pin hole, and there is no need to control the position of the second drive ring and the second connection part relative to the second pin. This makes installation easier.

[0012] In one embodiment, the first drive ring and the second drive ring are of unitary construction.

[0013] In this arrangement, the first and second driving rings are formed by casting or injection molding, so that the structure is simple and the processing is convenient. Moreover, the first and second driving rings are further provided with a connection between the first and second pins. In this case, the first and second supporting pieces can be connected only by using the foldable module.

[0014] In one embodiment, the first drive ring is disposed between the first connecting piece and the first spring, and the second drive ring is disposed between the second connecting piece and the second spring.

[0015] In this arrangement, the first spring abuts against the first drive ring, so that the first drive ring is attached to the first connection part. The first drive ring remains relatively stationary compared to the contact between the first spring and the first connection part, so that the first spring can be prevented from interfering with the rotation of the first connection part, which can improve the user experience. Similarly, the second spring abuts against the second drive ring, so that the second drive ring is attached to the second connection part. The second drive ring remains relatively stationary compared to the contact between the second spring and the second connection part, so that the second spring can be prevented from interfering with the rotation of the second connection part, which can improve the user experience.

[0016] In one embodiment, the foldable module further includes a first circlip and a second circlip, a first snap groove disposed on a tail end of the first pin, the first circlip snapped into the first snap groove, and the first spring abutting the first circlip; and a second snap groove disposed on the second pin, the second circlip snapped into the second snap groove, and the second spring abutting the second circlip.

[0017] In this arrangement, a first circlip snapped into a first snap groove is used to prevent the first spring, first drive ring and first connecting piece from falling off the rear end of the first pin, facilitating assembly / disassembly of the first spring, first drive ring and first connecting piece, and a second circlip snapped into a second snap groove is used to prevent the second spring, second drive ring and second connecting piece from falling off the rear end of the second pin, facilitating assembly / disassembly of the second spring, second drive ring and second connecting piece.

[0018] In one embodiment, the first circlip and the second circlip are of unitary construction.

[0019] In this arrangement, the first circlip and the second circlip form a one-piece structure by injection molding, casting, etc., and the first circlip and the second circlip can be attached simultaneously. In this way, the assembly speed is improved, and further the number of parts of the foldable module is reduced and the structure of the foldable module is simplified. Furthermore, the first circlip and the second circlip being a one-piece structure further increases the connection force between the first pin and the second pin.

[0020] In one embodiment, a first stopper is disposed at the head end of the first pin and a second stopper is disposed at the head end of the second pin.

[0021] In this arrangement, the first stopper cooperates with the first circlip to sandwich the first spring, the first drive ring, and the first connection part between the first circlip and the first stopper, so that the first spring, the first drive ring, and the first connection part are connected to the first pin. Similarly, the second stopper cooperates with the second circlip to sandwich the second spring, the second drive ring, and the second connection part between the second circlip and the second stopper, so that the second spring, the second drive ring, and the second connection part are connected to the second pin. In this way, the structure is simple and assembly / disassembly is easy.

[0022] In one embodiment, the first stop includes a first stop flange located at a front end of the first pin and a first pin sleeve sleeved onto the first pin.

[0023] In one embodiment, the second stop includes a second stop flange located at the front end of the second pin and a second pin sleeve sleeved onto the second pin.

[0024] In one embodiment, the first pin sleeve and the second pin sleeve are of unitary construction.

[0025] This arrangement can further increase the connection force between the first pin and the second pin. Also, when the first pin sleeve and the second pin sleeve are worn and the elastic force of the first spring and the elastic force of the second spring are insufficient, only the first pin sleeve and the second pin sleeve need to be replaced, and there is no need to replace the first pin and the second pin. Therefore, the maintenance cost is reduced.

[0026] In one embodiment, there are a plurality of first protrusions and a plurality of first recesses between the first drive ring and the first connecting part, the plurality of first protrusions being disposed at intervals around the axis of the first pin, each of the first protrusions cooperating with one of the first recesses.

[0027] In this arrangement, all the first protrusions slide out of the corresponding first recesses at the same time, or all the first protrusions are embedded in the first recesses at the same time, and even if any one of the first protrusions is damaged, the normal operation of the foldable module is not affected. In the case of full folding and full unfolding, all the first protrusions can be in the first recesses to maintain the folded and unfolded states. In addition, since multiple first protrusions and multiple first recesses are arranged, the friction force is increased, and the damping force for folding or unfolding can be increased.

[0028] According to a second aspect, the present application further discloses a foldable electronic device including a first support piece, a second support piece, a foldable screen, and the above-mentioned foldable module, wherein the first support piece and the second support piece are connected using the foldable module, and the foldable screen covers the first support piece and the second support piece.

[0029] Based on the above technical solution, according to the foldable module and foldable electronic device provided in the present application, the first pin hole is disposed in the first connecting part, the first pin passes through the first driving ring, the first pin, and the first spring, the first convex part and the first recess part are disposed between the first driving ring and the first connecting part, and the first spring abuts against the first driving ring or the first connecting part, so that the first convex part is embedded in the first recess part. In the folding or unfolding process, the first convex part slides out of the first recess part to provide a damping force for unfolding or folding. Compared with the method in which the first driving surface of the rotating shaft cooperates with the second driving surface of the first driving ring to rotate the first driving ring, the first connecting part can directly drive the first convex part and the first recess part to move relative to each other, thereby improving the transmission accuracy. [Brief description of the drawings]

[0030] [Figure 1] FIG. 2 is an exploded view of a foldable module according to one embodiment of the present application. [Diagram 2] FIG. 2 is a schematic structural diagram of a foldable module when unfolded according to an embodiment of the present application. [Diagram 3] FIG. 2 is a schematic structural diagram of a foldable module according to an embodiment of the present application when unfolded to 150°. [Figure 4] FIG. 2 is a schematic structural diagram of a foldable module according to an embodiment of the present application when unfolded to 90°. [Diagram 5] FIG. 2 is a schematic structural diagram of a foldable module according to an embodiment of the present application when unfolded to 30°. [Figure 6] FIG. 2 is a schematic structural diagram of a foldable module when folded according to an embodiment of the present application; [Figure 7] 1 is a schematic structural diagram of a foldable electronic device according to an embodiment of the present application; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0031] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions of the embodiments of the present application with reference to the accompanying drawings of the embodiments of the present application. It is clear that the described embodiments are only a part of the embodiments of the present application, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative efforts shall be included in the protection scope of the present application.

[0032] EMBODIMENT 1 FIG. 1 is an exploded view of a foldable module according to an embodiment of the present application. FIG. 2 is a schematic structural diagram of a foldable module when unfolded according to an embodiment of the present application. FIG. 3 is a schematic structural diagram of a foldable module when unfolded to 150° according to an embodiment of the present application. FIG. 4 is a schematic structural diagram of a foldable module when unfolded to 90° according to an embodiment of the present application. FIG. 5 is a schematic structural diagram of a foldable module when unfolded to 30° according to an embodiment of the present application. FIG. 6 is a schematic structural diagram of a foldable module when folded according to an embodiment of the present application. FIG. 7 is a schematic structural diagram of a foldable electronic device according to an embodiment of the present application.

[0033] Please refer to Fig. 1 to Fig. 7. This embodiment provides a foldable module 1 including a first connection part 20, a first pin 10, a first driving ring 30, and a first spring 40. A first pin hole is disposed in the first connection part 20, and the first pin 10 passes through the first driving ring 30, the first pin hole, and the first spring 40, and a first protrusion 202 and a first recess 301 are disposed between the first driving ring 30 and the first connection part 20, and the first protrusion 202 is located between the first spring 40 and the first recess 301, or the first recess 301 is located between the first spring 40 and the first protrusion 202, and the first protrusion 202 is embedded in the first recess 301. When the first connection part 20 rotates, the first protrusion 202 slides out of the first recess 301.

[0034] Please continue to refer to FIG. 7. Specifically, there is a first support piece 2 and a second support piece 3 that can be folded together in a folding device. In other words, the first support piece 2 and the second support piece 3 can be folded together or unfolded. The first connection part 20 can be connected to the first support piece 2, and the second support piece 3 can be connected to the first pin 10 correspondingly. When the first support piece 2 and the second support piece 3 are folded together or unfolded, the first support piece 2 rotates the first connection part 20, so that the first support piece 2 rotates relative to the second support piece 3.

[0035] In this embodiment, preferably, the first connecting part 20 and the first supporting piece 2 can be connected in multiple ways, provided that it can ensure that the first supporting piece 2 and the second supporting piece 3 can rotate smoothly. For example, a first sliding pole 201 is arranged on the first connecting part 20, and a first sliding slot cooperating with the first sliding pole 201 is arranged on the first supporting piece 2 correspondingly. When the first supporting piece 2 and the second supporting piece 3 rotate relative to each other, the first connecting part 20 rotates around the first pin 10, and the first sliding pole 201 slides inside the first sliding slot. In this arrangement, when the first connecting part 20 rotates together with the first supporting piece 2, a margin is ensured for the first connecting part 20 to slide against the first supporting piece 2, thereby realizing a smooth rotation.

[0036] Furthermore, two first sliding poles 201 are disposed on the first connecting part 20, and the center lines of the two first sliding poles 201 are on the same straight line. Furthermore, the two first sliding poles 201 are disposed on both sides of the first connecting part 20 at an interval. Correspondingly, two first sliding slots are disposed on the first supporting piece 2. Since each first sliding pole 201 slides into one first sliding slot, and the first connecting part 20 is sandwiched between the two first sliding slots, the first sliding poles 201 can be prevented from being separated from the corresponding first sliding slots, and the connection stability between the first connecting part 20 and the first supporting piece 2 is improved.

[0037] In this embodiment, the first spring 40 can be a helical spring, and the first pin 10 passes through the first driving ring 30, the first pin hole and the first spring 40. The first driving ring 30 and the first connecting piece 20 can be attached to each other by the first spring 40. In this way, the first protrusion 202 between the first driving ring 30 and the first connecting piece 20 is embedded in the first recess 301.

[0038] It should be noted that, in order to prevent the first pin 10 from falling off the first driving ring 30, the first spring 40 and the first connecting part 20 during use, male threads can be arranged on the side walls close to both ends of the first pin 10. Correspondingly, abutment nuts cooperating with the male threads are arranged at positions close to both ends of the first pin 10, and the two abutment nuts are sandwiched outside the first spring 40, the first driving ring 30 and the first connecting part 20, so that the first pin 10 becomes connected to the first spring 40, the first driving ring 30 and the first connecting part 20.

[0039] In this embodiment, the first protrusion 202 and the first recess 301 are disposed between the first driving ring 30 and the first connecting part 20. For example, the first protrusion 202 is disposed between the first driving ring 30 and the first connecting part 20. 0 sidewall Yes What? The first recess 301 may be disposed on the side wall facing the first connection part 20, and correspondingly, the first recess 301 may be disposed on the side wall facing the first connection part 20. 0 sidewall Yes What? The first protrusion 202 is disposed on the side wall facing the first driving ring 30. Alternatively, the first protrusion 202 is disposed on the side wall facing the first connecting part 2 0 sidewall Yes What? The first recess 301 is disposed on the side wall facing the first driving ring 30. 0 sidewall Yes What? It is arranged on the side wall facing the first connection part 20. It is placed on the side wall facing 0.

[0040] In this embodiment, the first spring 40 is configured to attach the first driving ring 30 to the first connecting part 20, so that the first protrusion 202 is embedded in the first recess 301. Specifically, the first spring 40 can be directly connected to the first connecting part 20. In other words, the first connecting part 20 is disposed between the first driving ring 30 and the first spring 40. In this manner, the first connecting part 20 is attached to the first driving ring 30 in a state of abutting against the first spring 40.

[0041] In this embodiment, preferably, the shapes and positions of the first protrusion 202 and the first recess 301 are appropriately set. When the first support piece 2 is fully unfolded relative to the second support piece 3, the first protrusion 202 can be embedded in the first recess 301, and when the first support piece 2 is fully folded relative to the second support piece 3, the first protrusion 202 can be slid out of the first recess 301. In this way, the first support piece 2 can be kept in an unfolded state, a damping force is provided in the folding process, and a restoring force is provided in the unfolding process of the first support piece 2 and the second support piece 3, which automatically unfolds the first support piece 2 and the second support piece 3. Indeed, when the shapes and positions of the first protrusion 202 and the first recess 301 are appropriately set, the first protrusion 202 can be embedded in the first recess 301 when the first support piece 2 is fully folded relative to the second support piece 3. Then, when the first support piece 2 is fully deployed relative to the second support piece 3, the first convex portion 202 can slide out of the first concave portion 301. In this way, the first support piece 2 and the second support piece 3 are kept in a folded state, a damping force is applied to the folding process, and a restoring force is applied to the folding process of the first support piece 2 and the second support piece 3, which causes the first support piece 2 and the second support piece 3 to automatically fold.

[0042] Preferably, a plurality of recesses 301 can be arranged, and the plurality of recesses 301 are arranged at intervals around the first pin 10. Furthermore, when the first support piece 2 is fully deployed relative to the second support piece 3, the first protrusion 202 is embedded in one first recess 301. And, when the first support piece 2 is fully folded relative to the second support piece 3, the first protrusion 202 is embedded in another first recess 301. In this way, the first support piece 2 and the second support piece 3 can be kept in the deployed state and the folded state. Furthermore, a damping force is provided in both the initial deployment process and the initial folding process, and when the first support piece 2 and the second support piece 3 are fully deployed and fully folded, a restoring force is provided, which causes the first support piece 2 and the second support piece 3 to be fully deployed or fully folded.

[0043] Please continue to refer to FIG. 1 to FIG. 6. For example, when the first connection part 20 and the second connection part 60 are gradually folded from the unfolded state with an included angle of 180°, the first convex part 202 gradually slides out of the first concave part 301. In this case, the first driving ring 30 is driven to move in the axial direction to compress the first spring 40, providing a damping force, thereby preventing the first connection part 20 and the second connection part 60 from folding. When the included angle between the first connection part 20 and the second connection part 60 is 150° due to folding, the entire first convex part 202 slides out of the first concave part 301. In the process where the included angle between the first connection part 20 and the second connection part 60 is 150° to 30°, the first convex part 202 slides out of the first concave part 301. When the included angle between the first connection part 20 and the second connection part 60 is 30° due to folding, the first convex part 202 gradually enters another first concave part 301. In this case, the first driving ring 30 moves in the axial direction, and the first spring 40 gradually expands to provide a restoring force, which drives the first connection part 20 and the second connection part 60 to continue folding until the first connection part 20 and the second connection part 60 are completely folded. Conversely, when the first connection part 20 and the second connection part 60 are gradually unfolded from a state in which the included angle is 0°, the first convex part 202 gradually slides out of the first concave part 301. In this case, the first driving ring 30 is driven to move in the axial direction to compress the first spring 40, providing a damping force, thereby preventing the first connection part 20 and the second connection part 60 from unfolding. When the included angle between the first connection part 20 and the second connection part 60 is 30° upon unfolding, the entire first convex part 202 slides out of the first concave part 301. When the included angle between the first connection part 20 and the second connection part 60 is 30° to 150°, the first convex part 202 slides outward from the first concave part 301. When the included angle between the first connection part 20 and the second connection part 60 is 150° upon unfolding, the first convex part 202 gradually enters another first concave part 301.In this case, the first driving ring 30 moves axially and the first spring 40 gradually expands to provide a restoring force which drives the first support piece 2 and the second support piece 3 to continue deployment until the first support piece 2 and the second support piece 3 are fully deployed.

[0044] It should be noted that when the first connecting part 20 rotates with the first support piece 2, the first driving ring 30 remains relatively stationary, so that the first connecting part 20 rotates relative to the first driving ring 30, and the first protrusion 202 gradually embeds in the first recess 301, or the first protrusion 202 gradually slides out of the first recess 301. For example, the first driving ring 30 can be connected to the second support piece 3 to prevent the first driving ring 30 from rotating with the first connecting part 20.

[0045] According to the foldable module 1 provided in this embodiment, the first pin hole is disposed in the first connecting part 20, the first pin 10 passes through the first driving ring 30, the first pin hole and the first spring 40, the first convex part 202 and the first recess 301 are disposed between the first driving ring 30 and the first connecting part 20, and the first spring 40 abuts against the first driving ring 30 or the first connecting part 20, so that the first convex part 202 is embedded in the first recess 301. During the folding or unfolding process, the first convex part 202 slides out of the first recess 301 to provide a damping force for unfolding or folding. Compared to a method in which the first drive surface of the rotating shaft cooperates with the second drive surface of the first drive ring 30 to rotate the first drive ring 30, the first connecting part 20 can directly drive the first convex portion 202 and the first concave portion 301 to move relative to each other, thereby improving transmission accuracy.

[0046] Please continue to refer to FIG. 1. The foldable module 1 provided in this embodiment further includes a second connection part 60, a second pin 50, a second driving ring 70, and a second spring 80. A second pin hole is disposed in the second connection part 60, and the second pin 50 passes through the second driving ring 70, the second pin hole, and the second spring 80. A second protrusion 602 and a second recess 701 are disposed between the second driving ring 70 and the second connection part 60, and the second protrusion 602 is located between the second spring 80 and the second recess 701, or the second recess 701 is located between the second spring 80 and the second protrusion 602, and the second protrusion 602 is embedded in the second recess 701. The first pin 10 and the second pin 50 are disposed in parallel and spaced apart. The first toothed structure 203 is disposed on the first connecting part 20, and the second toothed structure 603 is disposed on the second connecting part 60, and the first toothed structure 203 meshes with the second toothed structure 603. When the second connecting part 60 rotates, the second convex part 602 slides out of the second concave part 701. In this arrangement, when the first connecting part 20 rotates, the second connecting part 60 is driven to rotate, and the rotation angle of the first connecting part 20 and the rotation angle of the second connecting part 60 are the same. Compared with the case where only the first connecting part 20 rotates, when the second connecting part 60 and the first connecting part 20 rotate at the same time, the time required for rotation to the folded state or the unfolded state can be shortened, and rapid folding and unfolding can be realized. In addition, the first driving ring 30 and the first connecting part 10 can rotate relative to the first pin 10. Thus, during installation, the first pin 10 only needs to pass through the first driving ring 30 and the first pin hole, and there is no need to control the position of the first driving ring 30 and the first connecting part 10 relative to the first pin 10. This makes installation easier. Similarly, the second driving ring 70 and the second connecting part 60 can rotate relative to the second pin 50. Thus, during installation, the second pin 50 only needs to pass through the second driving ring 70 and the second pin hole, and there is no need to control the position of the second driving ring 70 and the second connecting part 60 relative to the second pin 50. This makes installation easier.

[0047] Specifically, the first connecting part 20 is connected to the first supporting piece 2, and the second connecting part 60 is connected to the second supporting piece 3. The second connecting part 60 and the second supporting piece 3 can be connected in multiple ways, provided that it can ensure that the first supporting piece 2 and the second supporting piece 3 can rotate smoothly. For example, a second sliding pole 601 is disposed on the second connecting part 60, and a second sliding slot cooperating with the second sliding pole 601 is disposed on the second supporting piece 3 correspondingly. When the first supporting piece 2 and the second supporting piece 3 rotate relative to each other, the second connecting part 60 rotates around the second pin 50, and the second sliding pole 601 slides inside the second sliding slot. When the second connecting part 60 rotates together with the second supporting piece 3, a margin is also ensured for the second connecting part 60 to slide relative to the second supporting piece 3, so that smooth rotation is realized.

[0048] Furthermore, two second sliding poles 601 are disposed on the second connecting part 60, and the center lines of the two second sliding poles 601 are on the same straight line. Furthermore, the two second sliding poles 601 are disposed on both sides of the second connecting part 60 at an interval. Correspondingly, two second sliding slots are disposed on the second supporting piece 3. Since each second sliding pole 601 slides into one second sliding slot, and the second connecting part 60 is sandwiched between the two second sliding slots, the second sliding poles 601 can be prevented from being separated from the corresponding second sliding slot, and the connection stability between the second connecting part 60 and the second supporting piece 3 is improved.

[0049] In this embodiment, the second spring 80 is a spiral spring, and the second pin 50 passes through the second driving ring 70, the second pin hole, and the second spring 80, and the second spring 80 can press the second driving ring 70 against the second connecting part 60. In this way, the second protrusion 602 between the second driving ring 70 and the second connecting part 60 is embedded in the second recess 701.

[0050] It should be noted that male threads can be arranged on the side walls close to both ends of the second pin 50 to prevent the second pin 50 from falling off the second driving ring 70, the second spring 80 and the second connecting part 60 during use. Correspondingly, abutment nuts cooperating with the male threads are arranged at positions close to both ends of the second pin 50, and the two abutment nuts are sandwiched outside the second spring 80, the second driving ring 70 and the second connecting part 60, so that the second pin 50 is connected to the second spring 80, the second driving ring 70 and the second connecting part 60.

[0051] In this embodiment, the second protrusion 602 and the second recess 701 are disposed between the second drive ring 70 and the second connection part 60. For example, the second protrusion 602 can be disposed on a side wall relating to the second drive ring 70 and facing the second connection part 60, and correspondingly, the second recess 701 is disposed on a side wall relating to the second connection part 60 and facing the second drive ring 70. Alternatively, the second protrusion 602 is disposed on a side wall relating to the second connection part 60 and facing the second drive ring 70, and the second recess 701 is disposed on a side wall relating to the second drive ring 70 and facing the second connection part 60.

[0052] In this embodiment, the second spring 80 is configured to attach the second driving ring 70 to the second connecting part 60, so that the second protrusion 602 is embedded in the second recess 701. Specifically, the second spring 80 can be directly connected to the second connecting part 60. In other words, the second connecting part 60 is disposed between the second driving ring 70 and the second spring 80. In this manner, the second connecting part 60 is attached to the second driving ring 70 in a state of abutting against the second spring 80.

[0053] In this embodiment, the shape of the second protrusion 602 is the same as that of the first protrusion 202, and the shape of the corresponding second recess 701 is the same as that of the first recess 301. Then, when the first protrusion 202 is embedded in the first recess 301, the second protrusion 602 is also embedded in the second recess 701, and when the first protrusion 202 slides out of the first recess 301, the second protrusion 602 also slides out of the second recess 701. In this arrangement method, when the first support piece 2 and the second support piece 3 are folded or unfolded, the first spring 40 and the second spring 80 are compressed or stretched simultaneously, thereby increasing the damping force and the restoring force and improving the user experience.

[0054] In this embodiment, the first driving ring 30 and the second driving ring 70 can be connected, so that the first driving ring 30 and the second driving ring 70 can be prevented from rotating together with the first connection part 20 and the second connection part 60. When the first connection part 20 and the second connection part 60 rotate, the first protrusion 202 slides out of the first recess 301, or the first protrusion 202 is embedded in the first recess 301. For example, the first driving ring 30 and the second driving ring 70 can be connected using bolts or by snaps, provided that the first driving ring 30 and the second driving ring 70 do not rotate after the first driving ring 30 and the second driving ring 70 are connected.

[0055] Please continue to refer to FIG. 1. In this embodiment, preferably, the first driving ring 30 and the second driving ring 70 are of an integral structure. The first driving ring 30 and the second driving ring 70 of the integral structure are formed by casting or injection molding, so that the structure is simple and easy to process. In addition, the first driving ring 30 and the second driving ring 70 of the integral structure further realize the connection between the first pin 10 and the second pin 50. In this case, the first supporting piece 2 and the second supporting piece 3 can be connected only by using the foldable module 1.

[0056] Please continue to refer to FIG. 1. In this embodiment, preferably, the first drive ring 30 is disposed between the first connection part 20 and the first spring 40, and the second drive ring 70 is disposed between the second connection part 60 and the second spring 80. The first drive ring 30 is attached to the first connection part 20 because the first spring 40 abuts against the first drive ring 30. Also, since the first drive ring 30 remains relatively stationary compared to the contact between the first spring 40 and the first connection part 20, the first spring 40 can be prevented from interfering with the rotation of the first connection part 20, which can improve the user experience. Similarly, the second spring 80 abuts against the second drive ring 70, so that the second drive ring 70 is attached to the second connection part 60. Additionally, the second drive ring 70 remains relatively stationary compared to the contact between the second spring 80 and the second connecting part 60, thereby preventing the second spring 80 from interfering with the rotation of the second connecting part 60, improving the user experience.

[0057] Please continue to refer to Fig. 1. In this embodiment, the foldable module 1 further includes a first circlip 104 and a second circlip 504. A first snap groove 101 is disposed on the rear end of the first pin 10, the first circlip 104 is snapped into the first snap groove 101, and the first spring 40 abuts against the first circlip 104. A second snap groove 501 is disposed on the second pin 50, the second circlip 504 is snapped into the second snap groove 501, and the second spring 80 abuts against the second circlip. The first circlip 104 snapped into the first snap groove 101 is used to prevent the first spring 40, the first drive ring 30, and the first connection part 20 from falling off the rear end of the first pin 10, so that the assembly / disassembly of the first spring 40, the first drive ring 30, and the first connection part 20 is easier than the method of placing an abutment nut. Similarly, the second circlip 504 snapped into the second snap groove 501 is used to prevent the second spring 80, the second drive ring 70, and the second connection part 60 from falling off the rear end of the second pin 50, so that the assembly / disassembly of the second spring 80, the second drive ring 70, and the second connection part 60 is easier than the method of placing an abutment nut.

[0058] Specifically, in this embodiment, both the first circlip 104 and the second circlip 504 may be made of metal. The first circlip 104 may be plate-shaped. A first notch is placed on the first circlip 104, and the first notch is inserted into the first snap groove 101. Then, the first circlip 104 is deformed, so that the width of the first notch is reduced, and an interference fit between the sidewall of the first notch and the first snap groove 101 is realized, which prevents the first circlip 104 from falling off the first snap groove 101. Indeed, in this embodiment, the first circlip 104 may alternatively be ring-shaped, etc. Similarly, the second circlip 504 may be plate-shaped, and a second notch is placed on the second circlip 504, and the second notch is inserted into the second snap groove 501. Then, the second circlip 504 is deformed so that the width of the second notch is reduced and an interference fit is achieved between the sidewall of the second notch and the second snap groove 501, preventing the second circlip 504 from falling out of the second snap groove 501. Indeed, in this embodiment, the circlip 504 may alternatively be ring-shaped or the like.

[0059] Preferably, in this embodiment, the first circlip 104 and the second circlip 504 are of one-piece structure. The first circlip 104 and the second circlip 504 are formed into one-piece structure by injection molding, casting, etc., and the first circlip 104 and the second circlip 504 can be attached at the same time. In this way, the assembly speed is improved, and further, the number of parts of the foldable module 1 is reduced, and the structure of the foldable module 1 is simplified. Furthermore, the first circlip 104 and the second circlip 504 being of one-piece structure further enhances the connection force between the first pin 10 and the second pin 50.

[0060] In this embodiment, the first stopper 102 is disposed at the front end of the first pin 10, and the second stopper 502 is disposed at the front end of the second pin 50. The first stopper 102 cooperates with the first circlip 104 to sandwich the first spring 40, the first driving ring 30, and the first connecting part 20 between the first circlip 104 and the first stopper 102, so that the first spring 40, the first driving ring 30, and the first connecting part 20 are connected to the first pin 10. Similarly, the second stopper 502 cooperates with the second circlip 504 to sandwich the second spring 80, the second driving ring 70, and the second connecting part 60 between the second circlip 504 and the second stopper 502, so that the second spring 80, the second driving ring 70, and the second connecting part 60 are connected to the second pin 50. In this way, the structure is simplified and assembly / disassembly is facilitated.

[0061] Preferably, the distance between the first stopper 102 and the first circlip 104 is appropriately set, and the elastic force after the first spring 40 is assembled is adjusted to change the abutment force of the first spring 40 against the first driving ring 30, and the damping force generated when the first protrusion 202 slides out of the first recess 301 and the restoring force generated when the first protrusion 202 is embedded in the first recess 301 can be adjusted. Similarly, the distance between the second stopper 502 and the second circlip 504 is appropriately set, and the elastic force after the second spring 80 is assembled is adjusted to change the abutment force of the second spring 80 against the second driving ring 70, and the damping force generated when the second protrusion 602 slides out of the second recess 701 and the restoring force generated when the second protrusion 602 is embedded in the second recess 701 can be adjusted.

[0062] Please continue to refer to FIG. 1. In this embodiment, the first stopper 102 includes a first stop flange located at the front end of the first pin 10 and a first pin sleeve 103 sleeved on the first pin 10. The second stopper 502 includes a second stop flange located at the front end of the second pin 50 and a second pin sleeve 503 sleeved on the second pin 50. The first pin sleeve 103 and the second pin sleeve 503 are of an integral structure. This arrangement can further increase the connection force between the first pin 10 and the second pin 50. In addition, when the first pin sleeve 103 and the second pin sleeve 503 are worn and the elastic force of the first spring 40 and the elastic force of the second spring 80 are insufficient, only the first pin sleeve 103 and the second pin sleeve 503 need to be replaced, and there is no need to replace the first pin 10 and the second pin 50. Therefore, the maintenance cost is reduced.

[0063] Please continue to refer to FIG. 1. In this embodiment, there are a plurality of first protrusions 202 and a plurality of first recesses 301 between the first driving ring 30 and the first connecting part 20, and the plurality of first protrusions 202 are spaced around the axis of the first pin 10, and each first protrusion 202 cooperates with one first recess 301. In this arrangement, all the first protrusions 202 can slide out of the corresponding first recesses 301 at the same time, or all the first protrusions 202 are embedded in the first recesses 301 at the same time, and if any one of the first protrusions 202 is damaged, the normal operation of the foldable module 1 will not be affected. In the case of full folding and full unfolding, all the first protrusions 202 are in the first recesses 301 to maintain the folded and unfolded states. Furthermore, since a plurality of first convex portions 202 and a plurality of first concave portions 301 are arranged, the frictional force is increased, and the damping force for folding or unfolding can be increased.

[0064] Also, there are a plurality of second protrusions 602 and a plurality of second recesses 701 between the second driving ring 70 and the second connecting part 60, and the plurality of second protrusions 602 are arranged at intervals around the axis of the second pin 50, and each second protrusion 602 cooperates with one second recess 701. Furthermore, when all the first protrusions 202 are embedded in the corresponding first recesses 301, all the second protrusions 602 are embedded in the corresponding second recesses 701. And, when all the first protrusions 202 slide out from the corresponding first recesses 301, all the second protrusions 602 slide out from the corresponding second recesses 701. In this arrangement method, all the second protrusions 602 can slide out from the corresponding second recesses 701 at the same time, or all the second protrusions 602 are embedded in the second recesses 701 at the same time. If any of the second protrusions 602 is damaged, the normal operation of the foldable module 1 will not be affected. Also, all the second protrusions 602 are in the second recesses 701 in the case of full folding and full unfolding, and can maintain the folded and unfolded states. Also, since multiple second protrusions 602 and multiple second recesses 701 are arranged, the friction force can be increased, and the damping force for folding or unfolding can be increased.

[0065] EMBODIMENT 2 Please continue to refer to Figures 1 to 7. This embodiment provides a foldable electronic device including the foldable module 1 described above.

[0066] Specifically, the foldable electronic device further includes a first support piece 2, a second support piece 3, and a foldable screen. The first support piece 2 and the second support piece 3 are connected using the foldable module 1, so that the first support piece 2 and the second support piece 3 can be unfolded or folded together, and the foldable screen covers the first support piece 2 and the second support piece 3. Preferably, both the first support piece 2 and the second support piece 3 can be plate-shaped, and correspondingly, electrical elements can be disposed on the first support piece 2 and / or the second support piece 3 to realize the function of the foldable electronic device.

[0067] The foldable module 1 includes a first connection part 20, a first pin 10, a first driving ring 30, and a first spring 40. The first pin hole is disposed in the first connection part 20, the first pin 10 passes through the first driving ring 30, the first pin hole, and the first spring 40, the first protrusion 202 and the first recess 301 are disposed between the first driving ring 30 and the first connection part 20, the first protrusion 202 is located between the first spring 40 and the first recess 301, or the first recess 301 is located between the first spring 40 and the first protrusion 202, and the first protrusion 202 is embedded in the first recess 301. When the first connection part 20 rotates, the first protrusion 202 slides out of the first recess 301.

[0068] Please continue to refer to FIG. 7. Specifically, there is a first support piece 2 and a second support piece 3 that can be folded together on the folding device. In other words, the first support piece 2 and the second support piece 3 can be folded together or unfolded. The first connection part 20 is connected to the first support piece 2, and the second support piece 3 can be connected to the first pin 10 correspondingly. When the first support piece 2 and the second support piece 3 are folded together or unfolded, the first support piece 2 rotates the first connection part 20, so that the first support piece 2 rotates relative to the second support piece 3.

[0069] In this embodiment, preferably, the first connecting part 20 and the first supporting piece 2 can be connected in multiple ways, provided that it can ensure that the first supporting piece 2 and the second supporting piece 3 can rotate smoothly. For example, a first sliding pole 201 is arranged on the first connecting part 20, and a first sliding slot cooperating with the first sliding pole 201 is arranged on the first supporting piece 2 correspondingly. When the first supporting piece 2 and the second supporting piece 3 rotate relative to each other, the first connecting part 20 rotates around the first pin 10, and the first sliding pole 201 slides inside the first sliding slot. In this arrangement, when the first connecting part 20 rotates together with the first supporting piece 2, a margin is ensured for the first connecting part 20 to slide against the first supporting piece 2, thereby realizing a smooth rotation.

[0070] Moreover, the two first sliding poles 201 are disposed on the first connecting part 20, and the center lines of the two first sliding poles 201 are on the same straight line. Moreover, the two first sliding poles 201 are disposed on both sides of the first connecting part 20 at intervals. Correspondingly, two first sliding slots are disposed on the first supporting piece 2. Since each first sliding pole 201 slides into one first sliding slot, and the first connecting part 20 is sandwiched between the two first sliding slots, the first sliding poles 201 can be prevented from being separated from the corresponding first sliding slots, and the connection stability between the first connecting part 20 and the first supporting piece 2 is improved.

[0071] In this embodiment, the first protrusion 202 and the first recess 301 are disposed between the first driving ring 30 and the first connecting part 20. For example, the first protrusion 202 can be disposed on a side wall of the first driving ring 30 that faces the first connecting part 20, and correspondingly, the first recess 301 is disposed on a side wall of the first connecting part 20 that faces the first driving ring 30. Alternatively, the protrusion 202 is disposed on a side wall of the first connecting part 20 that faces the first driving ring 30, and the first recess 301 is disposed on a side wall of the first driving ring 30 that faces the first connecting part 20.

[0072] In this embodiment, preferably, the shapes and positions of the first protrusion 202 and the first recess 301 are appropriately set. When the first support piece 2 is fully unfolded relative to the second support piece 3, the first protrusion 202 can be embedded in the first recess 301, and when the first support piece 2 is fully folded relative to the second support piece 3, the first protrusion 202 can be slid out of the first recess 301. In this way, the first support piece 2 can be kept in an unfolded state, a damping force is provided in the folding process, and a restoring force is provided in the unfolding process of the first support piece 2 and the second support piece 3, which automatically unfolds the first support piece 2 and the second support piece 3. Indeed, when the shapes and positions of the first protrusion 202 and the first recess 301 are appropriately set, the first protrusion 202 can be embedded in the first recess 301 when the first support piece 2 is fully folded relative to the second support piece 3. Then, when the first support piece 2 is fully deployed relative to the second support piece 3, the first convex portion 202 can slide out of the first concave portion 301. In this way, the first support piece 2 and the second support piece 3 can be kept in a folded state, a damping force is applied to the folding process, and a restoring force is applied to the folding process of the first support piece 2 and the second support piece 3, which causes the first support piece 2 and the second support piece 3 to automatically fold.

[0073] Preferably, a plurality of recesses 301 can be arranged, and the plurality of recesses 301 are arranged at intervals around the first pin 10. Also, when the first support piece 2 is fully deployed relative to the second support piece 3, the first protrusion 202 is embedded in one first recess 301. And, when the first support piece 2 is fully folded relative to the second support piece 3, the first protrusion 202 is embedded in another first recess 301. In this way, the first support piece 2 and the second support piece 3 can be kept in the deployed state and the folded state. Furthermore, a damping force is provided in both the initial deployment process and the initial folding process, and when the first support piece 2 and the second support piece 3 are fully deployed and fully folded, a restoring force is provided, which causes the first support piece 2 and the second support piece 3 to be fully deployed or fully folded.

[0074] Please continue to refer to FIG. 1 to FIG. 6. For example, when the first connection part 20 and the second connection part 60 are gradually folded from the unfolded state with an included angle of 180°, the first convex part 202 gradually slides out of the first concave part 301. In this case, the first driving ring 30 is driven to move in the axial direction to compress the first spring 40, and provides a damping force, thereby preventing the first connection part 20 and the second connection part 60 from folding. When the included angle between the first connection part 20 and the second connection part 60 is 150° due to folding, the entire first convex part 202 slides out of the first concave part 301. When the included angle between the first connection part 20 and the second connection part 60 is 30° due to folding, the first convex part 202 gradually enters another first concave part 301. In this case, the first driving ring 30 moves in the axial direction, and the first spring 40 gradually expands to provide a restoring force, which drives the first connecting part 20 and the second connecting part 60 to continue folding until the first connecting part 20 and the second connecting part 60 are completely folded. Conversely, when the first connecting part 20 and the second connecting part 60 are gradually unfolded from a state in which the included angle is 0°, the first convex part 202 gradually slides out of the first concave part 301. In this case, the first driving ring 30 is driven to move in the axial direction to compress the first spring 40, providing a damping force, thereby preventing the first connecting part 20 and the second connecting part 60 from unfolding. When the included angle between the first connecting part 20 and the second connecting part 60 is 30° upon unfolding, the entire first convex part 202 slides out of the first concave part 301. When the included angle between the first connecting part 20 and the second connecting part 60 is 150° due to deployment, the first convex part 202 gradually enters another first concave part 301. In this case, the first driving ring 30 moves in the axial direction, and the first spring 40 gradually expands to provide a restoring force, which drives the first concave part 301 to continue deployment until the first concave part 301 is fully deployed.

[0075] It should be noted that when the first connecting part 20 rotates with the first support piece 2, the first driving ring 30 remains relatively stationary, so that the first connecting part 20 rotates relative to the first driving ring 30, and the first protrusion 202 gradually embeds in the first recess 301, or the first protrusion 202 gradually slides out of the first recess 301. For example, the first driving ring 30 can be connected to the second support piece 3 to prevent the first driving ring 30 from rotating with the first connecting part 20.

[0076] According to the foldable electronic device provided in this embodiment, the first pin hole is disposed in the first connection part 20, the first pin 10 passes through the first driving ring 30, the first pin hole, and the first spring 40, the first convex part 202 and the first recess 301 are disposed between the first driving ring 30 and the first connection part 20, and the first spring 40 abuts against the first driving ring 30 or the first connection part 20, so that the first convex part 202 is embedded in the first recess 301. During the folding or unfolding process, the first convex part 202 slides out of the first recess 301 to provide a damping force for unfolding or folding. Compared to a method in which the first drive surface of the rotating shaft cooperates with the second drive surface of the first drive ring 30 to rotate the first drive ring 30, the first connecting part 20 can directly drive the first convex portion 202 and the first concave portion 301 to move relative to each other, thereby improving transmission accuracy.

[0077] In the description of the present application, the relationship of directions or positions indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "upper", "lower", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, is based on the relationship of directions or positions shown in the accompanying drawings, and is not intended to indicate or imply that the devices or components shown have a particular orientation or are required to be configured and operated in a particular direction, but is merely intended to facilitate and simplify the description of the present application, and therefore should not be understood as a limitation on the present application.

[0078] It should be noted that in the present description, the terms "first" and "second" are used merely to facilitate the description of different components, and should not be understood as an indication or relationship of order or relative importance, or an implicit indication of the quantity of the indicated technical features. Thus, a feature qualified by "first" or "second" may explicitly or implicitly include at least one such feature.

[0079] In this application, unless otherwise specified, the terms "attach", "link", "connect", and "fix" should be understood in a broad sense, and may be, for example, a fixed connection, a detachable connection, an integral molding, a mechanical connection, an electrical connection, a mutual communication, a direct connection, an indirect connection using an intermediate medium, an internal connection between two elements, or an interactive relationship between two elements, unless otherwise limited. Those skilled in the art can interpret the specific meaning of the above terms in this application according to a specific case.

[0080] Finally, it should be noted that the above embodiments are not intended to limit the present application, but are merely intended to describe the technical solutions of the present application. Although the present application has been described in detail with reference to the above embodiments, it should be understood that those skilled in the art can further modify the technical solutions described in the above embodiments, or make equivalent substitutions to some or all of the technical features thereof, without departing from the scope of the technical solutions of the embodiments of the present application.

[0081] The contents of the claims as originally filed are described below as examples. [Example 1] A foldable module including a first connecting part, a first pin, a first driving ring, and a first spring, a first pin hole is disposed in the first connecting part, the first pin passes through the first driving ring, the first pin hole, and the first spring, a first protrusion and a first recess are disposed between the first driving ring and the first connecting part, the first protrusion is located between the first spring and the first recess, or the first recess is located between the first spring and the first protrusion, and the first protrusion is embedded in the first recess; When the first connection part rotates, the first protrusion slides out of the first recess. Foldable module. [Example 2] the foldable module further includes a second connecting piece, a second pin, a second driving ring, and a second spring; A foldable module as described in Example 1, wherein a second pin hole is arranged in the second connection part, the second pin passes through the second drive ring, the second pin hole, and the second spring, a second convex portion and a second recess are arranged between the second drive ring and the second connection part, the second convex portion is located between the second spring and the second recess, or the second recess is located between the second spring and the second convex portion, and the second convex portion is embedded in the second recess. [Example 3] The first pin and the second pin are arranged in parallel and spaced apart, a first toothed structure is arranged on the first connecting piece, a second toothed structure is arranged on the second connecting piece, and the first toothed structure meshes with the second toothed structure; The foldable module of embodiment 2, wherein when the second connecting part rotates, the second protrusion slides out of the second recess. [Example 4] The foldable module of any one of claims 2 to 3, wherein the first drive ring and the second drive ring are of one unitary structure. [Example 5] A foldable module described in any one of Examples 2 to 4, wherein the first drive ring is arranged between the first connection part and the first spring, and the second drive ring is arranged between the second connection part and the second spring. [Example 6] The foldable module further includes a first circlip and a second circlip, a first snap groove is disposed on a rear end of the first pin, the first circlip is snapped into the first snap groove, and the first spring abuts against the first circlip; A foldable module according to any one of Examples 2 to 5, wherein a second snap groove is disposed on the second pin, the second circlip is snapped into the second snap groove, and the second spring abuts against the second circlip. [Example 7] 7. The foldable module of embodiment 6, wherein the first circlip and the second circlip are of one-piece construction. [Example 8] A foldable module as described in example 6 or 7, wherein a first stopper is disposed at a front end of the first pin and a second stopper is disposed at a front end of the second pin. [Example 9] A foldable module as described in Example 8, wherein the first stopper includes a first stop flange located at the front end of the first pin and a first pin sleeve attached to the first pin. [Example 10] A foldable module as described in Example 9, wherein the second stopper includes a second stop flange located at the front end of the second pin and a second pin sleeve attached to the second pin. [Example 11] The foldable module of embodiment 10, wherein the first pin sleeve and the second pin sleeve are of one-piece construction. [Example 12] A foldable module described in any one of Examples 1 to 11, wherein there are a plurality of first protrusions and a plurality of first recesses between the first driving ring and the first connecting part, the plurality of first protrusions being spaced apart around the axis of the first pin, and each of the first protrusions cooperating with one of the first recesses. [Example 13] A foldable device comprising a first support piece, a second support piece, a foldable screen, and a foldable module as described in any one of Examples 1 to 12, wherein the first support piece and the second support piece are connected using the foldable module, and the foldable screen covers the first support piece and the second support piece. [Explanation of symbols]

[0082] List of reference numbers: 1: Foldable module 2: First support piece 3: Second support piece 10: First pin 20: First connecting part 30: First driving ring 40: First spring 50: Second pin 60: Second connecting part 70: Second driving ring 80: Second spring 101: First snap groove 102: First stopper 103: First pin sleeve 104: First circlip 201: First sliding pole 202: First protrusion 203: First toothed structure 301: First recess 501: Second snap groove 502: Second Stopper 503: Second pin sleeve 504: Second circlip 601: Second sliding pole 602: Second protrusion 603: Second toothed structure 701: Second recess

Claims

1. A foldable module including a first connecting part, a first pin, a first driving ring, and a first spring, the first connecting part includes a first rotating end, a first pin hole is disposed in the first rotating end, the first pin passes through the first driving ring, the first pin hole, and the first spring, the first rotating end is rotatably connected to the first pin, a first protrusion is disposed on one side of the first rotating end toward the first driving ring, a first recess is disposed in the first driving ring, the first recess is located between the first spring and the first protrusion, and the first protrusion is embedded in the first recess; When the first connection part rotates, the first protrusion slides out of the first recess; the foldable module further includes a second connecting piece, a second pin, a second driving ring, and a second spring; the second connecting part includes a second rotating end, a second pin hole is disposed in the second rotating end, the second pin passes through the second driving ring, the second pin hole, and the second spring, the second rotating end is rotatably connected to the second pin, a second protrusion is disposed on one side of the second rotating end toward the second driving ring, a second recess is disposed in the second driving ring, the second recess is located between the second spring and the second protrusion, and the second protrusion is embedded in the second recess; When the second connection part rotates, the second protrusion slides out of the second recess; the first pin and the second pin are arranged in parallel and spaced apart, a first toothed structure is arranged on one end of the first connection part towards the second connection part, a second toothed structure is arranged on one end of the second connection part towards the first connection part, the other end of the first connection part is used to connect to a first support piece, the other end of the second connection part is used to connect to a second support piece, the first support piece and the second support piece are connected using the foldable module, the first connection part is integrally molded, the second connection part is integrally molded, the other end of the first connection part extends radially from the one end of the first connection part provided with the first toothed structure, the other end of the second connection part extends radially from the one end of the first connection part provided with the second toothed structure, and when the first connection part rotates, the first toothed structure and the second toothed structure are used to rotate the second connection part synchronously. Foldable module.

2. The foldable module of claim 1 , wherein the first toothed structure interlocks with the second toothed structure.

3. The foldable module of claim 2 , wherein the first drive ring and the second drive ring are of unitary construction.

4. 4. The foldable module according to claim 2 or 3, wherein the first drive ring is arranged between the first connecting part and the first spring, and the second drive ring is arranged between the second connecting part and the second spring.

5. The foldable module further includes a first circlip and a second circlip, a first snap groove is disposed on a rear end of the first pin, the first circlip is snapped into the first snap groove, and the first spring abuts against the first circlip; 5. The foldable module according to claim 2, wherein a second snap groove is disposed on the second pin, the second circlip is snapped into the second snap groove, and the second spring abuts against the second circlip.

6. 6. The foldable module according to claim 5, wherein the first circlip and the second circlip are of unitary construction.

7. 7. The foldable module according to claim 5 or 6, wherein a first stopper is arranged at a front end of the first pin and a second stopper is arranged at a front end of the second pin.

8. 8. The foldable module of claim 7, wherein the first stop includes a first stop flange located at the front end of the first pin and a first pin sleeve sleeved onto the first pin.

9. 9. The foldable module of claim 8, wherein the second stop includes a second stop flange located at the front end of the second pin and a second pin sleeve sleeved onto the second pin.

10. The foldable module of claim 9 , wherein the first pin sleeve and the second pin sleeve are of unitary construction.

11. 11. The foldable module according to claim 1, wherein there are a plurality of first protrusions and a plurality of first recesses, the plurality of first protrusions being spaced apart around an axis of the first pin, each of the first protrusions cooperating with one of the first recesses.

12. A foldable electronic device comprising a first support piece, a second support piece, a foldable screen, and a foldable module according to any one of claims 1 to 11, wherein the first support piece and the second support piece are connected using the foldable module, and the foldable screen covers the first support piece and the second support piece.

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