Rotating shaft mechanism and electronic equipment

Abstract

A rotating shaft mechanism (11) and an electronic device (10). The rotating shaft mechanism (11) comprises a base (110), and a first rotating assembly (111a) and a second rotating assembly (111b) which are respectively arranged on two sides of the base (110). When the first rotating assembly (111a) and the second rotating assembly (111b) rotate oppositely, the length of the rotating shaft mechanism (11) is increased, when the first rotating assembly (111a) and the second rotating assembly (111b) rotate oppositely, the length of the rotating shaft mechanism (11) is shortened, the number of parts of the rotating shaft mechanism (11) is reduced, and the structure of the rotating shaft mechanism (11) is simplified. In the folding and unfolding process, acting force such as stretching and compressing cannot be applied to the flexible display screen, so that the use effect and the safety of the electronic equipment (10) are improved.

Description

Rotating shaft mechanism and electronic equipment

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on March 31, 2023, with application number 202310383872.X and application name “A Rotating Shaft Mechanism and Electronic Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the technical field of electronic equipment, and in particular to a rotating shaft mechanism and electronic equipment. Background Art

[0004] With the gradual maturity of flexible display technology, the display mode of electronic devices has undergone tremendous changes. Foldable flexible screen mobile phones, foldable flexible screen tablets, and wearable electronic devices with foldable flexible screens are an important evolution direction of future smart electronic devices.

[0005] Existing foldable electronic devices include a flexible display and a hinge, which allows the flexible display to unfold and fold. In addition to changing the folding state of the electronic device, the hinge also provides support for the flexible display in different folding states. For example, in the case of an inward-folding electronic device, during folding or unfolding, the flexible display is located on the inner side of the hinge. Because the rotation radius of the flexible display is smaller than that of the hinge, it can easily be pulled or arched, which can damage the flexible display after long-term use.

[0006] In addition, current hinges typically include a rotating component and a sliding component. The rotating component is used to realize the folding and unfolding of the hinge, and the sliding component is used to determine the rotation direction of the rotating component. However, the structure of such hinges is relatively complex, requires high manufacturing precision, and is expensive to manufacture.

[0007] Summary of the Invention

[0008] The present application provides a rotating shaft mechanism and an electronic device, so that a rotating component can simultaneously realize the functions of rotation and sliding, thereby reducing the number of parts of the rotating shaft mechanism.

[0009] In a first aspect, the present application provides a rotating shaft mechanism. The rotating shaft mechanism includes a base, a first rotating assembly, and a second rotating assembly, wherein the first rotating assembly and the second rotating assembly are respectively arranged on either side of the base. Specifically, the first rotating assembly includes a first rotating shaft, a first rotating member, a first sliding member, and a first shell support frame. The first rotating shaft is arranged on one side of the base. The first rotating member is rotatably connected to the base via the first rotating shaft. One end of the first sliding member is rotatably connected to the base, and the other end is slidably connected to the first rotating member, and the first sliding member can slide relative to the first rotating member in a direction parallel to the first rotating shaft. The first shell support frame is slidably connected to the first rotating member, and the first shell support frame can slide relative to the first rotating member in a direction perpendicular to the first rotating shaft. The first sliding member is provided with a first spiral rotating portion, and a first spiral groove is provided on a side of the base close to the first sliding member. The first spiral rotating portion is accommodated in the first spiral groove, and the first sliding member slides relative to the first rotating member in a direction parallel to the first rotating shaft by rotating in the first spiral groove. One of the first housing support frame and the first sliding member is provided with a first inclined groove, and the other is provided with a first protrusion. The first protrusion is slidable within the first inclined groove, so as to push the first housing support frame to slide relative to the first rotating member in a direction away from the base when the first rotating assembly and the second rotating assembly rotate toward each other. Specifically, the first housing support frame is provided with the first inclined groove, and the first sliding member is further provided with the first protrusion, and the first protrusion is constrained within the first inclined groove.

[0010] Accordingly, the second rotating assembly includes a second rotating shaft, a second rotating member, a second sliding member, and a second housing support frame. The second rotating shaft is disposed on the other side of the base and is arranged parallel to the first rotating shaft. The second rotating member is rotationally connected to the base via the second rotating shaft. One end of the second sliding member is rotationally connected to the base, and the other end is slidably connected to the second rotating member. The second housing support frame is slidably connected to the second rotating member. The second sliding member is provided with a second helical rotating portion. A second helical groove is provided on a side of the base proximate to the second sliding member. The second helical rotating portion is received within the second helical groove, and rotation within the second helical groove enables the second sliding member to slide relative to the second rotating member in a direction parallel to the second rotating shaft. One of the second housing support frame and the second sliding member is provided with a second inclined groove, and the other is provided with a second protrusion. The second protrusion is slidable within the second inclined groove, so that when the first rotating assembly and the second rotating assembly rotate toward each other, the second housing support frame is pushed to slide relative to the second rotating member in a direction away from the base. Specifically, the second housing support frame may be provided with a second inclined groove, and the second sliding member may also be provided with a second protrusion, and the second protrusion may be constrained within the second inclined groove.

[0011] When the hinge mechanism is folded, the first and second rotating assemblies rotate toward each other. The first rotating member rotates about the first rotating axis, and the first sliding member rotates relative to the base. The first spiral rotation portion and the first spiral groove enable the first sliding member to slide parallel to the first rotating axis relative to the first rotating member. As the first sliding member slides, the first protrusion simultaneously slides within the first inclined groove, thereby pushing the first housing support frame to slide away from the base relative to the first rotating member. Conversely, the second rotating member rotates about the second rotating axis, and the second sliding member rotates relative to the base. The second spiral rotation portion and the second spiral groove enable the second sliding member to slide parallel to the second rotating axis relative to the second rotating member. As the second sliding member slides, the second protrusion simultaneously slides within the second inclined groove, thereby pushing the second housing support frame to slide away from the base relative to the second rotating member. The sliding of both the first and second housing support frames away from the base increases the length of the hinge mechanism, thereby protecting the flexible display from being squeezed.

[0012] When the hinge mechanism is deployed, the first rotating assembly and the second rotating assembly rotate in opposite directions. The first rotating member rotates about the first rotating axis, and the first sliding member rotates relative to the base and slides relative to the first rotating member in a direction parallel to the first rotating axis, causing the first protrusion to slide within the first inclined groove, thereby pushing the first shell support frame to slide relative to the first rotating member in a direction closer to the base. The second rotating member rotates about the second rotating axis, and the second sliding member rotates relative to the base and slides relative to the second rotating member in a direction parallel to the second rotating axis, causing the second protrusion to slide within the second inclined groove, thereby pushing the second shell support frame to slide relative to the second rotating member in a direction closer to the base. Both the first shell support frame and the second shell support frame slide in a direction closer to the base, shortening the length of the hinge mechanism and ensuring that the flexible display screen is not pulled.

[0013] In the hinge mechanism of the present application, when the hinge mechanism is folded, its length can be extended in a direction perpendicular to the base, and the first shell support frame, the second shell support frame and the base can enclose a storage space; when the hinge mechanism is unfolded, its length can be shortened in a direction perpendicular to the base, and the first shell support frame, the second shell support frame and the base can be flattened into a support surface. During the above-mentioned folding and unfolding process, the hinge mechanism will not apply tensile, compressive and other forces to the flexible display screen, thereby improving the use effect and safety of the electronic device; and the first rotating assembly and the second rotating assembly can each achieve a rotation direction limit, thereby reducing the number of parts of the hinge mechanism and simplifying the structure of the hinge mechanism. And because the structure of the hinge mechanism is simple, when the hinge mechanism is in a folded state, the screen space for accommodating the flexible display screen will also become larger, thereby being able to better accommodate the screen and avoid wrinkles on the flexible display screen.

[0014] In the above-mentioned rotating shaft mechanism, the rotating shaft module may further include a sliding connector. A first limiting notch is provided on the side of the first sliding member close to the first rotating shaft, and one end of the sliding connector is limited in the first limiting notch and is sleeved on the first rotating shaft. A second limiting notch is provided on the side of the second sliding member close to the second rotating shaft, and the other end of the sliding connector is limited in the second limiting notch and is sleeved on the second rotating shaft. When the first rotating assembly and the second rotating assembly rotate toward or away from each other, at least one of the first sliding member and the second sliding member can push the sliding connector to slide in the same direction on the first rotating shaft and the second rotating shaft. Furthermore, the sliding of the sliding connector on the first rotating shaft and the second rotating shaft can push the first sliding member and the second sliding member to slide synchronously in the same direction, thereby achieving synchronous movement of the first rotating assembly and the second rotating assembly. Due to the combined design of the spiral groove, the folding structural characteristics of the first rotating assembly and the second rotating assembly themselves, combined with a sliding connector, can achieve synchronous movement without adding a complex synchronization module, which can further reduce the number of parts of the rotating shaft mechanism and simplify the structure of the rotating shaft mechanism.

[0015] The shape of the sliding connection member in the above-mentioned rotating shaft mechanism is not particularly limited, and can be, for example, a cross shape or a straight shape.

[0016] In the rotating shaft mechanism of the present application, the sliding connection between the first rotating member and the first sliding member can be achieved through a slide groove and a sliding portion. Specifically, in one technical solution, the first sliding member may be provided with a first slide groove parallel to the first rotating shaft, and the first rotating member is provided with a first sliding portion. The first sliding portion is accommodated in the first slide groove, and the sliding connection between the first rotating member and the first sliding member is achieved by sliding in the first slide groove. Correspondingly, the second sliding member may be provided with a second slide groove parallel to the second rotating shaft, the second rotating member is provided with a second sliding portion, the second sliding portion is accommodated in the second slide groove, and the sliding connection between the second rotating member and the second sliding member is achieved by sliding in the second slide groove. Of course, the positions of the sliding portion and the slide groove are not limited to the above technical solution. For example, in another technical solution, the first rotating member is provided with a third slide groove parallel to the first rotating shaft, the first sliding member is further provided with a third sliding portion, the third sliding portion is accommodated in the third slide groove, and the sliding connection between the first rotating member and the first sliding member is achieved by sliding in the third slide groove. The second rotating member is provided with a fourth sliding groove parallel to the second rotating shaft, and the second sliding member is also provided with a fourth sliding part. The fourth sliding part is accommodated in the fourth sliding groove, and the sliding connection between the second rotating member and the second sliding member is achieved by sliding in the fourth sliding groove.

[0017] In the technical solution of the present application, in order to improve space utilization and realize the miniaturization of the rotating shaft mechanism, the first rotating member and the second rotating member can be a frame structure. Specifically, the first rotating member includes a first frame body and a first rotating part, the first frame body is surrounded to form a first hollow area, and the first frame body is slidingly connected to the first sliding member and the first shell support frame respectively. The first rotating part is arranged on the side of the first frame body close to the base and is rotatably connected to the first rotating shaft. The first sliding member includes a first slider body, the first slider body is arranged in the first hollow area of ​​the first frame body, and the first spiral rotating part is arranged on the side of the first slider body close to the base. When the first rotating member and the first sliding member rotate relative to the base, the first sliding member moves in the first hollow area in a direction parallel to the first rotating shaft.

[0018] Accordingly, the second rotating member may include a second frame body and a second rotating portion, wherein the second frame body is surrounded by a second hollow area, and the second frame body is slidably connected to the second sliding member and the second shell support frame, respectively. The second rotating portion is disposed on a side of the second frame body close to the base and is rotatably connected to the second rotating shaft. The second sliding member includes a second slider body, the second slider body is disposed in the second hollow area of ​​the second frame body, and the second spiral rotating portion is disposed on a side of the second slider body close to the base. When the second rotating member and the second sliding member rotate relative to the base, the second slider moves in the second hollow area in a direction parallel to the second rotating shaft.

[0019] In the above technical solution, the first protrusion can be provided on the first slider body of the first sliding member, the first protrusion passing through the first hollow area and slidingly connected to the first oblique groove. The second protrusion can be provided on the second slider body of the second sliding member, the second protrusion passing through the second hollow area and slidingly connected to the second oblique groove.

[0020] Furthermore, the shapes of the first and second protrusions are not particularly limited. For example, the cross-sectional shape of the first protrusion parallel to the first slider body can be circular, elliptical, or rectangular; and the cross-sectional shape of the second protrusion parallel to the second slider body can be circular, elliptical, or rectangular.

[0021] In the aforementioned pivot mechanism, the first chute extends from a side proximal to a side distal to the base, away from the base, and may form a first angle with the first pivot axis, which is an acute angle. When the first sliding member slides parallel to the first pivot axis, the motion trajectory of the first protrusion forms the first angle with the base. In other words, the motion trajectory of the first protrusion includes a first trajectory component parallel to the first pivot axis and a second trajectory component perpendicular to the base. The second trajectory component of the first protrusion can propel the first housing support frame toward or away from the base relative to the first rotating member. Correspondingly, the second chute extends away from the base and may form a second angle with the second pivot axis, which is an acute angle. When the second sliding member slides parallel to the second pivot axis, the motion trajectory of the second protrusion forms a second angle with the base. In other words, the motion trajectory of the second protrusion includes a third trajectory component parallel to the second pivot axis and a fourth trajectory component perpendicular to the base. The fourth trajectory component of the second protrusion can propel the second housing support frame relative to the second rotating member toward or away from the base. This ensures that the flexible display maintains a constant length during folding and unfolding, preventing stretching or buckling of the flexible display. Specifically, when the first and second rotating assemblies rotate toward each other, the first protrusion slides in the first inclined slot toward the base, and the second protrusion slides in the second inclined slot toward the base.

[0022] Specifically, a sliding connection is provided between the first shell support frame and the first rotating member. The first shell support frame may also be provided with a first limiting slide groove, and the first limiting slide groove extends in a direction away from the base. The first rotating member is provided with a first limiting sliding portion, the first limiting sliding portion is accommodated in the first limiting slide groove, and the sliding connection between the first shell support frame and the first rotating member can be achieved by sliding the first limiting sliding portion in the first limiting slide groove. Correspondingly, the second shell support frame may also be provided with a second limiting slide groove, and the second limiting slide groove extends in a direction away from the base. The second rotating member is provided with a second limiting sliding portion, the second limiting sliding portion is accommodated in the second limiting slide groove, and the sliding connection between the second shell support frame and the second rotating member can be achieved by sliding the second limiting sliding portion in the second limiting slide groove.

[0023] Of course, the specific positions of the above-mentioned limiting grooves and limiting sliding parts are not limited. For example, in another technical solution, the first shell support frame may be provided with a third limiting sliding part, and the first rotating member may be provided with a third limiting groove, the third limiting groove extends in a direction away from the base, the third limiting sliding part is accommodated in the third limiting groove, and the sliding connection between the first shell support frame and the first rotating member is achieved by the sliding of the third limiting sliding part in the third limiting groove. Correspondingly, the second shell support frame may be provided with a fourth limiting groove, the second rotating member may be provided with a fourth limiting groove, the fourth limiting groove extends in a direction away from the base, the fourth limiting sliding part is accommodated in the fourth limiting groove, and the sliding connection between the second shell support frame and the second rotating member can be achieved by the sliding of the fourth limiting sliding part in the fourth limiting groove.

[0024] In addition, the above-mentioned hinge mechanism may further include a first door panel and a second door panel that are relatively arranged on both sides of the base. The first door panel and the second door panel are used to provide support for the flexible display screen. Specifically, the first door panel is rotatably connected to the first shell support frame and is slidably connected to the first rotating member. The second door panel is rotatably connected to the second shell support frame and is slidably connected to the second rotating member. When the first rotating assembly and the second rotating assembly rotate toward each other, the first door panel can rotate relative to the first shell support frame and slide relative to the first rotating member, and the second door panel rotates relative to the second shell support frame and slides relative to the second rotating member, so that when the hinge mechanism is in a folded state, the first door panel and the second door panel are respectively arranged at an angle to the base, so that the first door panel and the second door panel and the base enclose a space similar to a triangle, so that a part of the flexible display screen is accommodated in the space in a teardrop shape.

[0025] The first door panel has a first support surface on the side facing the flexible display screen, the second door panel has a second support surface on the side facing the flexible display screen, and the base has a third support surface on the side facing the flexible display screen. When the hinge mechanism is in a flattened state, the first support surface, the second support surface, and the third support surface can form a flat support surface for supporting the flexible display screen. When the hinge mechanism is actually applied to an electronic device, the flexible display screen can be arranged on one side of the hinge mechanism and continuously cover the first shell support frame, the first door panel, the base, the second door panel, and the second shell support frame, so that the first support surface, the second support surface, and the third support surface provide good support for the flexible display screen, thereby preventing the flexible display screen from sinking or arching.

[0026] When the first door panel and the second door panel are specifically arranged, a first arc-shaped rotating block is provided on the side of the first door panel facing away from the flexible display screen, and a first arc-shaped guide groove is provided on the side of the first shell support frame facing the first door panel. The first arc-shaped rotating block can be accommodated in the first arc-shaped guide groove, and the rotational connection between the first door panel and the first shell support frame is achieved by sliding in the first arc-shaped guide groove. Correspondingly, a second arc-shaped rotating block is provided on the side of the second door panel facing away from the flexible display screen, and a second arc-shaped guide groove is provided on the side of the second shell support frame facing the second door panel. The second arc-shaped rotating block is accommodated in the second arc-shaped guide groove, and the rotational connection between the second door panel and the second shell support frame is achieved by sliding in the second arc-shaped guide groove. When the first shell support frame and the second shell support frame are folded or unfolded relative to each other, the first door panel and the second door panel are also folded or unfolded along with the first shell support frame and the second shell support frame.

[0027] The first door panel may also be provided with a first tracking groove on the side facing away from the flexible display screen, and the first rotating member may be provided with a first pin. The first pin is accommodated in the first tracking groove and drives the first door panel relative to the first housing support frame by sliding within the first tracking groove. Correspondingly, the second door panel may also be provided with a second tracking groove on the side facing away from the flexible display screen, and the second rotating member may be provided with a second pin. The second pin is accommodated in the second tracking groove and drives the second door panel relative to the second housing support frame by sliding within the second tracking groove.

[0028] In a second aspect, the present application provides an electronic device. The electronic device includes a flexible display, a first housing, a second housing, and the hinge mechanism of the first aspect. Specifically, the first housing and the second housing are disposed on opposite sides of a base, the first housing is fixedly connected to a first housing support frame, and the second housing is fixedly connected to a second housing support frame. The flexible display continuously covers the first housing, the second housing, and the hinge mechanism, and is fixedly connected to the first housing and the second housing, respectively.

[0029] When the electronic device is folded, the first shell and the second shell rotate toward each other, and under the action of the first shell support frame and the second shell support frame, the first shell and the second shell translate in a direction away from the base, thereby avoiding the generation of a compressive force on the flexible display. When the electronic device is unfolded, the first shell and the second shell rotate away from each other, and under the action of the first shell support frame and the second shell support frame, the first shell and the second shell translate in a direction close to the base, thereby avoiding the generation of a tensile force on the flexible display. In addition, during the folding process, the hinge mechanism can form a space for accommodating the flexible display, so that the flexible display is accommodated in the space in a teardrop shape, so as to prevent the flexible display from being squeezed and causing creases and other undesirable phenomena. At the same time, the hinge mechanism itself can achieve steering limitation, thereby reducing the number of parts of the hinge mechanism and simplifying the structure of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] FIG1 is a schematic diagram of an electronic device in an unfolded state provided by an embodiment of the present application;

[0031] FIG2 is a perspective assembly diagram of the electronic device of FIG1 ;

[0032] FIG3 is a partial schematic diagram of an electronic device in a folded state provided by an embodiment of the present application;

[0033] FIG4 is a schematic structural diagram of a rotating shaft mechanism provided in an embodiment of the present application;

[0034] FIG5 is a three-dimensional assembly diagram of the rotating shaft mechanism in FIG4;

[0035] FIG6 is a schematic structural diagram of a base provided in an embodiment of the present application;

[0036] FIG7 is a schematic structural diagram of a first sliding member provided in an embodiment of the present application;

[0037] FIG8 is another structural schematic diagram of the rotating shaft mechanism provided in an embodiment of the present application;

[0038] FIG9 is another structural schematic diagram of the rotating shaft mechanism provided in an embodiment of the present application;

[0039] FIG10 is a schematic diagram of a folding structure of the rotating shaft mechanism provided in an embodiment of the present application;

[0040] FIG11 is another schematic diagram of the folding of the rotating shaft mechanism provided in an embodiment of the present application;

[0041] FIG12 is another structural schematic diagram of the rotating shaft mechanism provided in an embodiment of the present application;

[0042] FIG13 is another structural schematic diagram of the rotating shaft mechanism provided in an embodiment of the present application;

[0043] FIG14 is a schematic diagram of an expanded shaft mechanism provided in an embodiment of the present application;

[0044] FIG15 is a schematic diagram of the folding of the rotating shaft mechanism provided in an embodiment of the present application.

[0045] Reference numerals: 10-electronic device; 11-rotating shaft mechanism; 12-flexible display screen; 13-first housing; 14-second housing; 110-base; 111-rotating shaft module; 112a-first door panel; 112b-second door panel; 1101a-first spiral groove; 1101b-second spiral groove; 1111a-first rotating assembly; 1111b-second rotating assembly; 1112-sliding connector; 1112a-first end; 1112b-second end; 1113a-first rotating shaft; 1113b-second rotating shaft; 1114a-first rotating member; 1114b-second rotating member; 1115a-first sliding member; 1115b-second sliding member; 1116a-first housing support frame; 1116b-second housing support frame; 1117a - first spiral rotating portion; 1117b - second spiral rotating portion; 1118a - first sliding groove; 1118b - second sliding groove; 1119a - first sliding portion; 1119b - second sliding portion; 1120a - first limiting sliding groove; 1120b - second limiting sliding groove; 1121a - first inclined groove; 1121b - second inclined groove; 1122a - first limiting sliding portion; 1122b - second limiting sliding portion; 1123a - first protrusion; 1123b - second protrusion; 1124a - first limiting notch; 1124b - second limiting notch; 1125a - first arc-shaped rotating block; 1126a - first arc-shaped guide groove; 1127a - first track groove; 1127b - second track groove; 1128a - first pin; 1128b - second pin; 1129a - first frame body; 1129b - second frame body; 1130a - first rotating part;1130b - second rotating portion; 1131a - first hollow area; 1131b - second hollow area; 1132a - first slider body; 1132b - second slider body. DETAILED DESCRIPTION

[0046] In some current foldable electronic devices, the rotation and sliding of the hinge mechanism are achieved by different components, which takes up a large space and is not conducive to the miniaturization of the foldable electronic device.

[0047] Therefore, the present application provides a hinge mechanism and an electronic device, so that the rotating component can simultaneously realize the rotation and sliding functions, thereby reducing the number of parts of the hinge mechanism.

[0048] It should be noted that the terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the specification and claims of this application, the singular expressions "a," "an," "said," "above," "the," and "this" are intended to include expressions such as "one or more," unless the context clearly indicates otherwise.

[0049] References to "one embodiment" or "some embodiments" in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in one or more embodiments of the present application. Thus, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in yet other embodiments" appearing in various places in this specification do not necessarily refer to the same embodiment, but rather mean "one or more but not all embodiments," unless otherwise specifically emphasized. The terms "including," "comprising," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0050] In order to make the purpose, technical solutions and advantages of this application clearer, this application will be further described in detail below with reference to the accompanying drawings.

[0051] To facilitate understanding of the hinge mechanism provided in the embodiment of the present application, its application scenario is described below. The hinge mechanism can be applied to, but is not limited to, foldable electronic devices such as mobile phones, smart wearable devices, tablet computers, or laptop computers. When the hinge mechanism provided in the embodiment of the present application is applied to an electronic device, reference can be made to Figures 1 and 2. Figure 1 is a schematic diagram of the electronic device provided in the embodiment of the present application in an unfolded state, and Figure 2 is a three-dimensional assembly diagram of the electronic device in Figure 1. The electronic device 10 provided in the present application can be an inward-folding electronic device. Figure 3 is a partial schematic diagram of the electronic device provided in the embodiment of the present application in a folded state. As shown in Figures 2 and 3, in addition to the hinge mechanism 11, the electronic device 10 can also include a flexible display screen 12, a first shell 13, and a second shell 14, wherein the flexible display screen 12 is arranged on the hinge mechanism 11. The first shell 13 and the second shell 14 are arranged on both sides of the hinge mechanism 11 and can rotate around the hinge mechanism 11. When in use, the electronic device 10 can be folded and unfolded according to different usage scenarios. When the electronic device 10 is in the unfolded state, the flexible display 12 is positioned on the same side of the hinge mechanism 11, the first housing 13, and the second housing 14, and is connected to the hinge mechanism 11, the first housing 13, and the second housing 14. In this case, the outer surface of the first housing 13 facing away from the flexible display 12 and the outer surface of the second housing 14 facing away from the flexible display 12 can collectively serve as the exterior surface of the electronic device 10, with the flexible display 12 used for displaying images. As shown in Figure 3, when the electronic device 10 is in the folded state, the first housing 13 and the second housing 14 are positioned opposite each other, and the flexible display 12 folds into a teardrop shape, thereby reducing the stress applied to the flexible display 12 by the folding of the first and second housings 13, 14. It will be understood that the process of the electronic device 10 moving from the unfolded state to the folded state, or vice versa, is the process of the first and second housings 13, 14 rotating about the hinge mechanism 11. During this process, the flexible display 12 bends or flattens along with the first and second housings 13, 14.

[0052] Figure 4 is a schematic structural diagram of the rotating shaft mechanism provided in an embodiment of the present application, and Figure 5 is a three-dimensional assembly diagram of the rotating shaft mechanism in Figure 4. As shown in Figures 4 and 5, the rotating shaft mechanism 11 includes a base 110 and at least one rotating shaft module 111. Figure 6 is a schematic structural diagram of the base provided in an embodiment of the present application. As shown in Figure 6, the base 110 is provided with a first spiral groove 1101a and a second spiral groove 1101b. Please continue to refer to Figures 5 and 6. The rotating shaft module 111 may include a first rotating component 1111a and a second rotating component 1111b, and the first rotating component 1111a and the second rotating component 1111b are respectively arranged on both sides of the base 110. The first rotating component 1111a may include a first rotating shaft 1113a, a first rotating member 1114a, a first sliding member 1115a and a first shell support frame 1116a. Among them, the first rotating shaft 1113a is arranged on one side of the base 110. The first rotating member 1114a is rotatably connected to the base 110 via a first rotating shaft 1113a. A first sliding member 1115a has one end rotatably connected to the base 110 and the other end slidably connected to the first rotating member 1114a. The first sliding member 1115a can slide relative to the first rotating member 1114a in a direction parallel to the first rotating shaft 1113a. Accordingly, the second rotating assembly 1111b may include a second rotating shaft 1113b, a second rotating member 1114b, a second sliding member 1115b, and a second housing support frame 1116b. The second rotating shaft 1113b is disposed on the other side of the base 110. The second rotating member 1114b is rotatably connected to the base 110 via the second rotating shaft 1113b. One end of the second sliding member 1115b is rotatably connected to the base 110, and the other end is slidably connected to the second rotating member 1114b, and the second sliding member 1115b can slide relative to the second rotating member 1114b along a direction parallel to the second rotating shaft 1113b.

[0053] Figure 7 is a schematic diagram of the structure of a first sliding member provided in an embodiment of the present application, and Figure 8 is a schematic diagram of another structure of a rotating shaft mechanism provided in an embodiment of the present application. As shown in Figures 7 and 8, the first sliding member 1115a is provided with a first spiral rotating portion 1117a. As shown in Figures 5, 7, and 8, the first spiral rotating portion 1117a can be accommodated in the first spiral groove 1101a and can be rotated within the first spiral groove 1101a to enable the first sliding member 1115a to slide relative to the first rotating member 1114a in a direction parallel to the first rotating shaft 1113a. The first housing support frame 1116a is provided with a first inclined groove 1121a. Figure 9 is another schematic diagram of the structure of the rotating shaft mechanism provided in an embodiment of the present application. As shown in Figure 9, the first sliding member 1115a is provided with a first protrusion 1123a, which is positioned within the first inclined groove 1121a and can slide within the first inclined groove 1121a.

[0054] Correspondingly, the second sliding member 1115b is provided with a second spiral rotating portion 1117b. The second spiral rotating portion 1117b can be accommodated in the second spiral groove 1101b and can be rotated in the second spiral groove 1101b to enable the second sliding member 1115b to slide relative to the second rotating member 1114b in a direction parallel to the second rotating shaft 1113b. The second housing support frame 1116b is provided with a second inclined groove 1121b, and the second sliding member 1115b is provided with a second protrusion 1123b. The second protrusion 1123b is retained in the second inclined groove 1121b and can slide within the second inclined groove 1121b.

[0055] When the hinge mechanism 11 is folded, the first rotating assembly 1111a and the second rotating assembly 1111b rotate toward each other, the first rotating member 1114a rotates about the first rotating axis 1113a, and the first sliding member 1115a rotates relative to the base 110. The first spiral rotating portion 1117a and the first spiral groove 1101a enable the first sliding member 1115a to slide relative to the first rotating member 1114a in a direction parallel to the first rotating axis 1113a. During the sliding process of the first sliding member 1115a, the first protrusion 1123a simultaneously slides within the first inclined groove 1121a, thereby pushing the first housing support frame 1116a to slide relative to the first rotating member 1114a in a direction away from the base 110. The second rotating member 1114b rotates about the second rotating shaft 1113b, and the second sliding member 1115b rotates relative to the base 110. The second spiral rotating portion 1117b and the second spiral groove 1101b enable the second sliding member 1115b to slide relative to the second rotating member 1114b in a direction parallel to the second rotating shaft 1113b. During the sliding process of the second sliding member 1115b, the second protrusion 1123b simultaneously slides within the second inclined groove 1121b, thereby pushing the second housing support frame 1116b to slide relative to the second rotating member 1114b in a direction away from the base 110. The sliding of the first housing support frame 1116a and the second housing support frame 1116b away from the base 110 increases the length of the hinge mechanism 11, thereby ensuring that the flexible display screen 12 is not squeezed. Furthermore, when the hinge mechanism 11 is in the folded state, the first housing support frame 1116 a , the second housing support frame 1116 b and the base 110 may enclose an accommodation space for accommodating the flexible display screen 12 .

[0056] When the hinge mechanism 11 is unfolded, the first rotating component 1111a and the second rotating component 1111b rotate in opposite directions, the first rotating member 1114a rotates around the first rotating axis 1113a, the first sliding member 1115a rotates relative to the base 110 and slides relative to the first rotating member 1114a in a direction parallel to the first rotating axis 1113a, so that the first protrusion 1123a slides in the first inclined groove 1121a, thereby pushing the first shell support frame 1116a to slide relative to the first rotating member 1114a in a direction close to the base 110. The second rotating member 1114b rotates about the second rotating axis 1113b, and the second sliding member 1115b rotates relative to the base 110 and slides relative to the second rotating member 1114b in a direction parallel to the second rotating axis 1113b, causing the second protrusion 1123b to slide within the second inclined groove 1121b, thereby pushing the second housing support frame 1116b to slide relative to the second rotating member 1114b in a direction closer to the base 110. The first housing support frame 1116a and the second housing support frame 1116b both slide in a direction closer to the base 110, shortening the length of the hinge mechanism 11 and thus protecting the flexible display screen 12 from being pulled. Furthermore, when the hinge mechanism 11 is in a flattened state, the first housing support frame 1116a, the second housing support frame 1116b, and the base 110 can be flattened to form a support surface.

[0057] In the hinge mechanism 11 of the present application, when the hinge mechanism 11 is folded, its length can be extended in a direction perpendicular to the base 110, and the first shell support frame 1116a, the second shell support frame 1116b and the base 110 can enclose a storage space; when the hinge mechanism 11 is unfolded, its length can be shortened in a direction perpendicular to the base 110, and the first shell support frame 1116a, the second shell support frame 1116b and the base 110 can be flattened into a support surface. During the above-mentioned folding and unfolding process, the hinge mechanism 11 will not apply tensile, compressive and other forces to the flexible display screen 12, thereby improving the use effect and safety of the electronic device 10; and the first rotating component 1111a and the second rotating component 1111b can each achieve a rotation direction limit, thereby reducing the number of parts of the hinge mechanism 11 and simplifying the structure of the hinge mechanism 11. And because the structure of the hinge mechanism 11 is simple, when the hinge mechanism 11 is in the folded state, the screen space for accommodating the flexible display screen 12 will also become larger, thereby being able to better accommodate the screen and avoid wrinkles on the flexible display screen 12.

[0058] In the rotating shaft mechanism 11 of the present application, the sliding connection between the first rotating member 1114a and the first sliding member 1115a can be achieved through a slide groove and a sliding portion. As shown in Figures 7 and 8, the first sliding member 1115a can be provided with a first slide groove 1118a parallel to the first rotating shaft 1113a. The first rotating member 1114a is provided with a first sliding portion 1119a, which can be accommodated in the first slide groove 1118a and can achieve the sliding connection between the first rotating member 1114a and the first sliding member 1115a by rotating in the first slide groove 1118a. Correspondingly, the second sliding member 1115b is provided with a second slide groove 1118b parallel to the second rotating shaft 1113b. The second rotating member 1114b is provided with a second sliding portion 1119b, and the second sliding portion 1119b can be accommodated in the second chute 1118b, and the sliding connection between the second rotating member 1114b and the second sliding member 1115b can be achieved by sliding in the second chute 1118b. Of course, the positions of the sliding portion and the chute are not limited to the above technical aspects. For example, in another embodiment, the first sliding member 1115a can be provided with a first sliding portion 1119a, and the first rotating member 1114a is provided with a first chute 1118a parallel to the first rotating shaft 1113a. The second sliding member 1115b is provided with a second sliding portion 1119b, and the second rotating member 1114b is provided with a second chute 1118b parallel to the second rotating shaft 1113b.

[0059] In the first shell support frame 1116a and the second shell support frame 1116b, the first inclined groove 1121a and the second inclined groove 1121b can be symmetrically arranged relative to the base 110 and each formed at an acute angle with the base 110. This allows the first shell support frame 1116a and the second shell support frame 1116b to move away from the base 110, thereby ensuring that the flexible display screen 12 maintains a constant length during folding and unfolding, and preventing the flexible display screen 12 from being pulled or arched. Specifically, the first inclined groove 1121a extends from the side close to the base 110 to the side away from the base 110 in a direction away from the base 110, and can form a first angle with the first rotation axis 1113a, which is an acute angle. When the first sliding member 1115a slides in a direction parallel to the first rotation axis 1113a, the motion trajectory of the first protrusion 1123a forms a first angle with the base 110. In other words, the motion trajectory of the first protrusion 1123a includes a first trajectory component along a direction parallel to the first rotation axis 1113a and a second trajectory component along a direction perpendicular to the base 110. The second trajectory component of the first protrusion 1123a can push the first housing support frame 1116a to move relative to the first rotating member 1114a in a direction toward or away from the base 110. Accordingly, the second inclined slot 1121b extends from the side closest to the base 110 to the side away from the base 110, in a direction away from the base 110, and can form a second acute angle with the second rotation axis 1113b. When the second sliding member 1115b slides in a direction parallel to the second rotation axis 1113b, the motion trajectory of the second protrusion 1123b forms a second angle with the base 110. In other words, the motion trajectory of the second protrusion 1123b includes a third trajectory component along a direction parallel to the second rotation axis 1113b and a fourth trajectory component along a direction perpendicular to the base 110. The fourth trajectory component of the second protrusion 1123b can push the second housing support frame 1116b to move relative to the second rotating member 1114b in a direction toward or away from the base 110. Specifically, when the first rotating assembly 1111a and the second rotating assembly 1111b rotate toward each other, the first protrusion 1123a slides in the first inclined slot 1121a toward the base 110, and the second protrusion 1123b slides in the second inclined slot 1121b toward the base 110.

[0060] As shown in Figures 5 and 8, a sliding connection is specifically provided between the first housing support frame 1116a and the first rotating member 1114a. The first housing support frame 1116a may be provided with a first limiting slide 1120a, wherein the first limiting slide 1120a extends perpendicularly to the first rotating shaft 1113a. The first rotating member 1114a may be provided with a first limiting sliding portion 1122a, which may be accommodated in the first limiting slide 1120a and achieve a sliding connection between the first housing support frame 1116a and the first rotating member 1114a by sliding in the first limiting slide 1120a. Correspondingly, the second housing support frame 1116b is provided with a second limiting slide 1120b, wherein the second limiting slide 1120b extends perpendicularly to the second rotating shaft 1113b. The second rotating member 1114b is provided with a second limiting sliding portion 1122b, which can be accommodated in the second limiting chute 1120b, and can achieve a sliding connection between the second shell support frame 1116b and the second rotating member 1114b by sliding in the second limiting chute 1120b. Of course, the specific positions of the above-mentioned limiting chute and limiting sliding portion are not limited. For example, in another embodiment, the first shell support frame 1116a can be provided with a first limiting sliding portion 1122a, and the first rotating member 1114a can be provided with a first limiting chute 1120a. The second shell support frame 1116b is provided with a second limiting sliding portion 1122b, and the second rotating member 1114b is provided with a second limiting chute 1120b.

[0061] As shown in FIG5 , in an embodiment of the present application, the first rotating member 1114a and the second rotating member 1114b may be frame structures. The first rotating member 1114a includes a first frame body 1129a and a first rotating portion 1130a. The first frame body 1129a is surrounded by a first hollow region 1131a and is slidably connected to the first sliding member 1115a and the first housing support frame 1116a, respectively. The first rotating portion 1130a is disposed on a side of the first frame body 1129a near the base 110 and is rotatably connected to the first rotating shaft 1113a. The first sliding member 1115a includes a first slider body 1132a disposed within the first hollow region 1131a of the first frame body 1129a. The first spiral rotating portion 1117a is disposed on a side of the first slider body 1132a near the base 110. When the first rotating member 1114a and the first sliding member 1115a rotate relative to the base 110, the first sliding member 1115a moves in the first hollow area 1131a in a direction parallel to the first rotating axis 1113a.

[0062] Accordingly, the second rotating member 1114b may include a second frame body 1129b and a second rotating portion 1130b. The second frame body 1129b is surrounded by a second hollow area 1131b and is slidably connected to the second sliding member 1115b and the second housing support frame 1116b. The second rotating portion 1130b is disposed on a side of the second frame body 1129b near the base 110 and is rotatably connected to the second rotating shaft 1113b. The second sliding member 1115b includes a second slider body 1132b, which is disposed within the second hollow area 1131b of the second frame body 1129b. The second spiral rotating portion 1117b is disposed on a side of the second slider body 1132b near the base 110. When the second rotating member 1114b and the second sliding member 1115b rotate relative to the base 110, the second sliding member 1115b moves in the second hollow area 1131b in a direction parallel to the second rotating shaft 1113b. In this way, space utilization can be improved, which is conducive to the miniaturization of the rotating shaft mechanism 11.

[0063] As shown in Figure 8, using the second rotating assembly 1111b as an example, during the folding or unfolding of the hinge mechanism 11, the second rotating member 1114b and the second sliding member 1115b rotate relative to the base 110. In one embodiment, the second rotating shaft 1113b passes through the second spiral groove 1101b, the second spiral rotating portion 1117b, and the second rotating portion 1130b, and is mounted on the base 110. In this embodiment, the rotation axis of the second rotating member 1114b and the rotation axis of the second sliding member 1115b overlap, that is, the second rotating member 1114b and the second sliding member 1115b share a common rotation axis. Of course, the rotation axis of the second rotating member 1114b and the rotation axis of the second sliding member 1115b do not need to overlap. For example, in another embodiment, the second rotating shaft 1113b passes through the second rotating portion 1130b of the second rotating member 1114b and is mounted on the base 110. Second rotating assembly 1111b may further include a third rotating shaft (not shown) parallel to second rotating shaft 1113b. The third rotating shaft passes through second spiral groove 1101b and second spiral rotating portion 1117b and is mounted on base 110. When second rotating assembly 1111b rotates, second rotating member 1114b rotates about second rotating shaft 1113b, and second sliding member 1115b rotates about the third rotating shaft.

[0064] As shown in FIG9 , in the above technical solution, the first protrusion 1123a can be provided on the first slider body 1132a of the first sliding member 1115a, the first protrusion 1123a passing through the first hollow region 1131a and slidingly connected to the first inclined groove 1121a. The second protrusion 1123b can be provided on the second slider body 1132b of the second sliding member 1115b, the second protrusion 1123b passing through the second hollow region 1131b and slidingly connected to the second inclined groove 1121b.

[0065] FIG10 is a schematic diagram of a folding hinge mechanism provided in an embodiment of the present application. As shown in FIG10 , when the first rotating assembly 1111a and the second rotating assembly 1111b are folded relative to each other, the first protrusion 1123a slides from the end of the first slanted slot 1121a facing away from the base 110 toward the base 110, and the second protrusion 1123b slides from the end of the second slanted slot 1121b facing away from the base 110 toward the base 110, thereby driving the first housing support frame 1116a and the second housing support frame 1116b to move in a direction perpendicular to the base 110. Therefore, during the folding and unfolding process of the electronic device 10, the first housing support frame 1116a and the second housing support frame 1116b can move toward or away from the base 110, thereby increasing the length of the hinge mechanism 11 in a direction perpendicular to the base 110 to accommodate the changes in the neutral layer position of the flexible display 12 during the folding or unfolding process, thereby preventing the flexible display 12 from buckling or pulling during the process.

[0066] Furthermore, the shapes of the first protrusion 1123a and the second protrusion 1123b are not particularly limited. For example, the cross-sectional shape of the first protrusion 1123a parallel to the first slider body 1132a can be circular, elliptical, or rectangular. The cross-sectional shape of the second protrusion 1123b parallel to the second slider body 1132b can be circular, elliptical, or rectangular.

[0067] As shown in Figures 4 and 5, the rotating shaft module 111 may further include a sliding connector 1112, which is disposed between the first rotating assembly 1111a and the second rotating assembly 1111b, wherein the first end 1112a of the sliding connector 1112 is sleeved on the first rotating shaft 1113a and can slide along the first rotating shaft 1113a. The second end 1112b of the sliding connector 1112 is sleeved on the second rotating shaft 1113b and can slide along the second rotating shaft 1113b. The first sliding member 1115a is connected to the first end 1112a, and the second sliding member 1115b is connected to the second end 1112b. The shape of the sliding connector 1112 is not specifically limited, and can be, for example, a cross shape or a straight line shape.

[0068] FIG11 is another schematic diagram of the folding mechanism of the present invention. As shown in FIG11 , when the first rotating assembly 1111a and the second rotating assembly 1111b are folded relative to each other, the first rotating member 1114a rotates about the first rotating shaft 1113a, driving the first sliding member 1115a to rotate relative to the base 110 and simultaneously slide along the first rotating shaft 1113a. The second rotating member 1114b rotates about the second rotating shaft 1113b, driving the second sliding member 1115b to rotate relative to the base 110 and simultaneously slide along the second rotating shaft 1113b. The sliding of the first sliding member 1115a along the first rotating shaft 1113a can drive the sliding connector 1112 to slide along the first rotating shaft 1113a, and the sliding of the second sliding member 1115b along the second rotating shaft 1113b can drive the sliding connector 1112 to slide along the second rotating shaft 1113b. Because the sliding connector 1112 slides simultaneously along the first rotating shaft 1113a and the second rotating shaft 1113b, it can push the first sliding member 1115a and the second sliding member 1115b to slide synchronously, thereby causing the first rotating member 1114a and the second rotating member 1114b to rotate synchronously relative to the base 110. Therefore, by utilizing the spiral groove design, the folding structural characteristics of the first rotating assembly 1111a and the second rotating assembly 1111b, combined with the sliding connector 1112, can achieve synchronous movement without adding a complex synchronization module, thereby reducing the number of parts in the rotating shaft mechanism 11 and simplifying the structure of the rotating shaft mechanism 11.

[0069] FIG12 is another schematic diagram of the structure of the rotating shaft mechanism provided in an embodiment of the present application. As shown in FIG12 , when the first rotating assembly 1111a is specifically configured, the first spiral rotating portion 1117a can be sleeved onto the first rotating shaft 1113a. The first spiral rotating portion 1117a is provided with a first limiting notch 1124a, and the first end 1112a of the sliding connector 1112 is limited within the first limiting notch 1124a. The second spiral rotating portion 1117b can be sleeved onto the second rotating shaft 1113b. The second spiral rotating portion 1117b is provided with a second limiting notch 1124b, and the second end 1112b of the sliding connector 1112 is limited within the second limiting notch 1124b. When the first sliding member 1115a slides along the first rotating shaft 1113a, the first spiral rotating portion 1117a can drive the first end 1112a of the sliding connection member 1112 to slide along the first rotating shaft 1113a; when the second sliding member 1115b slides along the second rotating shaft 1113b, the second spiral rotating portion 1117b can drive the second end 1112b of the sliding connection member 1112 to slide along the second rotating shaft 1113b, thereby realizing the sliding of the sliding connection member 1112 along the first rotating shaft 1113a and the second rotating shaft 1113b.

[0070] FIG13 is another structural schematic diagram of the hinge mechanism provided in an embodiment of the present application. As shown in FIG2 and FIG13, the hinge mechanism 11 may further include a first door panel 112a and a second door panel 112b arranged on opposite sides of the base 110. The first door panel 112a is arranged near the first rotating assembly 1111a, and the second door panel 112b is arranged near the second rotating assembly 1111b. The first door panel 112a and the second door panel 112b are used to provide support for the flexible display screen 12. Specifically, the first door panel 112a is rotatably connected to the first shell support frame 1116a and is slidably connected to the first rotating member 1114a. The second door panel 112b is rotatably connected to the second shell support frame 1116b and is slidably connected to the second rotating member 1114b. When the first rotating assembly 1111a and the second rotating assembly 1111b rotate toward each other, the first door panel 112a can rotate relative to the first housing support frame 1116a and slide relative to the first rotating member 1114a, and the second door panel 112b can rotate relative to the second housing support frame 1116b and slide relative to the second rotating member 1114b. When the hinge mechanism 11 is in the folded state, the first door panel 112a and the second door panel 112b are respectively arranged at an angle with the base 110, so that the first door panel 112a and the second door panel 112b and the base 110 enclose a triangular space, so that a portion of the flexible display screen 12 is accommodated in the teardrop shape within the space. It should be noted that the first door panel 112a and the second door panel 112b can be in contact with the base 110, or they can be non-contacting with the base 110. In other words, the angle formed between the first door panel 112a and the base 110 can be the angle formed by the contact between the first door panel 112a and the base 110, or the angle formed by the extension line of the first door panel 112a and the base 110, which is an acute angle. The angle formed between the second door panel 112b and the base 110 can be the angle formed by the contact between the second door panel 112b and the base 110, or the angle formed by the extension line of the second door panel 112b and the base 110, which is an acute angle.

[0071] As shown in Figure 13, a first curved rotating block 1125a is provided on the side of the first door panel 112a facing away from the flexible display screen 12, and a first curved guide groove 1126a is provided on the side of the first housing support frame 1116a facing the first door panel 112a. The first curved rotating block 1125a is receivable within the first curved guide groove 1126a and slides within the first curved guide groove 1126a to achieve a rotational connection between the first door panel 112a and the first housing support frame 1116a. Correspondingly, a second curved rotating block is provided on the side of the second door panel 112b facing away from the flexible display screen 12, and a second curved guide groove is provided on the side of the second housing support frame 1116b facing the second door panel 112b. The second curved rotating block is received within the second curved guide groove and slides within the second curved guide groove to achieve a rotational connection between the second door panel 112b and the second housing support frame 1116b.

[0072] Figure 14 is a schematic diagram of the unfolding of the hinge mechanism provided in an embodiment of the present application, and Figure 15 is a schematic diagram of the folding of the hinge mechanism provided in an embodiment of the present application. As shown in Figures 14 and 15, when the first shell support frame 1116a and the second shell support frame 1116b are folded or unfolded relative to each other, the first door panel 112a and the second door panel 112b are also folded or unfolded along with the first shell support frame 1116a and the second shell support frame 1116b. When the flexible display screen 12 is specifically arranged, the flexible display screen 12 is located on one side of the hinge mechanism 11 and is arranged near the first door panel 112a and the second door panel 112b. The first door panel 112a has a first support surface on the side facing the flexible display screen 12, the second door panel 112b has a second support surface on the side facing the flexible display screen 12, and the base 110 has a third support surface on the side facing the flexible display screen 12. When the hinge mechanism 11 is in a flattened state, the first supporting surface, the second supporting surface and the third supporting surface can form a flat supporting surface for supporting the flexible display screen 12, thereby providing good support for the flexible display screen 12 and preventing the flexible display screen 12 from being concave or arched.

[0073] As shown in Figure 13 , the first door panel 112a may also be provided with a first tracking groove 1127a on the side facing away from the flexible display screen 12, and the first rotating member 1114a may be provided with a first pin 1128a. The first pin 1128a is received in the first tracking groove 1127a and, by sliding within the first tracking groove 1127a, drives the first door panel 112a to move relative to the first housing support frame 1116a. Correspondingly, as shown in Figures 14 and 15 , the second door panel 112b may also be provided with a second tracking groove 1127b on the side facing away from the flexible display screen 12, and the second rotating member 1114b may be provided with a second pin 1128b. The second pin 1128b is received in the second tracking groove 1127b and, by sliding within the second tracking groove 1127b, drives the second door panel 112b to move relative to the second housing support frame 1116b.

[0074] The terms used in the above embodiments are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the specification and appended claims of this application, the singular expressions "a", "an", "said", "above", "the", and "this" are intended to also include expressions such as "one or more", unless the context clearly indicates otherwise.

[0075] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A hinge mechanism for a foldable electronic device, characterized in that: The rotating shaft mechanism comprises a base, a first rotating assembly and a second rotating assembly, wherein the first rotating assembly and the second rotating assembly are respectively arranged on two sides of the base; The first rotating assembly comprises: A first rotating shaft is disposed on one side of the base; A first rotating member, rotatably connected to the base via the first rotating shaft; a first sliding member, one end of which is rotatably connected to the base, and the other end of which is slidably connected to the first rotating member, wherein the first sliding member can slide relative to the first rotating member in a direction parallel to the first rotating axis; A first housing support frame is slidably connected to the first rotating member, and the first housing support frame can slide relative to the first rotating member in a direction perpendicular to the first rotating axis; The first sliding member is provided with a first spiral rotating part, and a first spiral groove is provided on a side of the base close to the first sliding member; the first spiral rotating part is accommodated in the first spiral groove, and the first sliding member is realized to slide relative to the first rotating member in a direction parallel to the first rotating axis by rotating in the first spiral groove; One of the first housing support frame and the first sliding member is provided with a first inclined groove, and the other is provided with a first protrusion, and the first protrusion can slide in the first inclined groove, so as to push the first housing support frame to slide relative to the first rotating member in a direction away from the base when the first rotating assembly and the second rotating assembly rotate toward each other; The second rotating assembly comprises: A second rotating shaft is disposed on the other side of the base and is arranged parallel to the first rotating shaft; A second rotating member, rotatably connected to the base via the second rotating shaft; a second sliding member, one end of which is rotatably connected to the base, and the other end of which is slidably connected to the second rotating member, wherein the second sliding member can slide relative to the second rotating member in a direction parallel to the second rotating axis; A second housing support frame is slidably connected to the second rotating member, and the second housing support frame can slide relative to the second rotating member in a direction perpendicular to the second rotating axis; The second sliding member is provided with a second spiral rotating part, and a second spiral groove is provided on a side of the base close to the second sliding member; the second spiral rotating part is accommodated in the second spiral groove, and the second sliding member is slidable relative to the second rotating member in a direction parallel to the second rotating axis by rotating in the second spiral groove; One of the second shell support frame and the second sliding member is provided with a second inclined groove, and the other is provided with a second protrusion, and the second protrusion can slide in the second inclined groove to push the second shell support frame to slide relative to the second rotating member in a direction away from the base when the first rotating component and the second rotating component rotate towards each other.

2. The rotating shaft mechanism according to claim 1, characterized in that: The rotating shaft module also includes a sliding connection member; A first limiting notch is provided on one side of the first sliding member close to the first rotating shaft, one end of the sliding connection member is limited in the first limiting notch and is sleeved on the first rotating shaft; a second limiting notch is provided on one side of the second sliding member close to the second rotating shaft, the other end of the sliding connection member is limited in the second limiting notch and is sleeved on the second rotating shaft; When the first rotating component and the second rotating component rotate toward or away from each other, at least one of the first sliding member and the second sliding member pushes the sliding connection member to slide on the first rotating shaft and the second rotating shaft in the same direction, so that the sliding connection member pushes the first sliding member and the second sliding member to slide synchronously in the same direction.

3. The rotating shaft mechanism according to claim 2, characterized in that: The shape of the sliding connection piece is a cross or a straight line.

4. The rotating shaft mechanism according to any one of claims 1 to 3, characterized in that: The first sliding member is further provided with a first sliding groove parallel to the first rotating shaft, the first rotating member is provided with a first sliding portion, the first sliding portion is accommodated in the first sliding groove, and the sliding connection between the first rotating member and the first sliding member is achieved by sliding in the first sliding groove; the second sliding member is provided with a second sliding groove parallel to the second rotating shaft, the second rotating member is provided with a second sliding portion, the second sliding portion is accommodated in the second sliding groove, and the sliding connection between the second rotating member and the second sliding member is achieved by sliding in the second sliding groove; or, The first rotating member is provided with a third sliding groove parallel to the first rotating shaft, and the first sliding member is also provided with a third sliding portion, the third sliding portion is accommodated in the third sliding groove, and the sliding connection between the first rotating member and the first sliding member is achieved by sliding in the third sliding groove; the second rotating member is provided with a fourth sliding groove parallel to the second rotating shaft, and the second sliding member is also provided with a fourth sliding portion, the fourth sliding portion is accommodated in the fourth sliding groove, and the sliding connection between the second rotating member and the second sliding member is achieved by sliding in the fourth sliding groove.

5. The rotating shaft mechanism according to any one of claims 1 to 4, characterized in that: The first rotating member includes a first frame body and a first rotating part, wherein the first frame body is surrounded to form a first hollow area; the first frame body is slidably connected to the first sliding member and the first shell support frame respectively; the first rotating part is arranged on a side of the first frame body close to the base, and is rotatably connected to the first rotating shaft; The first sliding member includes a first slider body, the first slider body is arranged in the first hollow area of ​​the first frame body, and the first spiral rotating part is arranged on a side of the first slider body close to the base; The second rotating member includes a second frame body and a second rotating part, wherein the second frame body is surrounded to form a second hollow area; the second frame body is slidably connected to the second sliding member and the second shell support frame respectively; the second rotating part is arranged on a side of the second frame body close to the base, and is rotatably connected to the second rotating shaft; The second sliding member includes a second slider body, the second slider body is arranged in the second hollow area of ​​the second frame body, and the second spiral rotating part is arranged on a side of the second slider body close to the base.

6. The rotating shaft mechanism according to claim 5, characterized in that: The first housing support frame is provided with the first oblique groove, the first protrusion is provided on the first slider body of the first sliding member, and passes through the first hollow area to be slidably connected with the first oblique groove; The second shell support frame is provided with the second inclined groove, and the second protrusion is provided on the second sliding block body of the second sliding member and passes through the second hollow area to be slidably connected with the second inclined groove.

7. The rotating shaft mechanism according to claim 5 or 6, characterized in that: The cross-sectional shape of the first protrusion parallel to the first slider body is circular, elliptical or rectangular; The cross-sectional shape of the second protrusion parallel to the second slider body is circular, elliptical or rectangular.

8. The rotating shaft mechanism according to any one of claims 1 to 7, characterized in that: The first chute extends from a side close to the base to a side far from the base in a direction away from the base and forms a first angle with the first rotating axis, wherein the first angle is an acute angle; The second inclined groove extends in a direction away from the base and forms a second angle with the second rotating shaft, wherein the second angle is an acute angle; When the first rotating assembly and the second rotating assembly rotate toward each other, the first protrusion slides in the first inclined groove toward the base, and the second protrusion slides in the second inclined groove toward the base.

9. The rotating shaft mechanism according to any one of claims 1 to 8, characterized in that: The first shell support frame is also provided with a first limiting slide groove, the first limiting slide groove extends in a direction away from the base, the first rotating member is provided with a first limiting sliding portion, the first limiting sliding portion is accommodated in the first limiting slide groove, and the sliding connection between the first shell support frame and the first rotating member is achieved by sliding in the first limiting slide groove; the second shell support frame is also provided with a second limiting slide groove, the second limiting slide groove extends in a direction away from the base, the second rotating member is provided with a second limiting sliding portion, the second limiting sliding portion is accommodated in the second limiting slide groove, and the sliding connection between the second shell support frame and the second rotating member is achieved by sliding in the second limiting slide groove; or, The first shell support frame is also provided with a third limiting sliding portion, and the first rotating member is provided with a third limiting sliding groove, and the third limiting sliding groove extends in a direction away from the base, and the third limiting sliding portion is accommodated in the third limiting sliding groove, and the sliding connection between the first shell support frame and the first rotating member is realized by sliding in the third limiting sliding groove; the second shell support frame is also provided with a fourth limiting sliding portion, and the second rotating member is provided with a fourth limiting sliding groove, and the fourth limiting sliding groove extends in a direction away from the base, and the fourth limiting sliding portion is accommodated in the fourth limiting sliding groove, and the sliding connection between the second shell support frame and the second rotating member is realized by sliding in the fourth limiting sliding groove.

10. The rotating shaft mechanism according to any one of claims 1 to 9, characterized in that: The hinge mechanism further comprises a first door plate and a second door plate which are arranged on two sides of the base, and the first door plate and the second door plate are used to support the flexible display screen of the electronic device; wherein the first door plate is rotatably connected to the first shell support frame and is slidably connected to the first rotating member; the second door plate is rotatably connected to the second shell support frame and is slidably connected to the second rotating member; When the first rotating assembly and the second rotating assembly rotate toward each other, the first door panel rotates relative to the first shell support frame and slides relative to the first rotating member, and the second door panel rotates relative to the second shell support frame and slides relative to the second rotating member, so that when the hinge mechanism is in a folded state, the first door panel and the second door panel are respectively set at an angle to the base.

11. The rotating shaft mechanism according to claim 10, characterized in that: The first door panel has a first supporting surface on a side facing the flexible display screen, the second door panel has a second supporting surface on a side facing the flexible display screen, and the base has a third supporting surface on a side facing the flexible display screen; When the hinge mechanism is in a flattened state, the first supporting surface, the second supporting surface and the third supporting surface form a flat supporting surface for supporting the flexible display screen.

12. The rotating shaft mechanism according to claim 10 or 11, characterized in that: A first arc-shaped rotating block is provided on a side of the first door panel facing away from the flexible display screen, and a first arc-shaped guiding groove is provided on a side of the first shell support frame facing the first door panel, the first arc-shaped rotating block is accommodated in the first arc-shaped guiding groove, and the first door panel is rotatably connected to the first shell support frame by sliding in the first arc-shaped guiding groove; A second arc-shaped rotating block is provided on the side of the second door panel facing away from the flexible display screen, and a second arc-shaped guide groove is provided on the side of the second shell support frame facing the second door panel. The second arc-shaped rotating block is accommodated in the second arc-shaped guide groove, and the second door panel and the second shell support frame are rotatably connected by sliding in the second arc-shaped guide groove.

13. The rotating shaft mechanism according to any one of claims 10 to 12, characterized in that: A first track groove is further provided on a side of the first door panel away from the flexible display screen, and a first pin is provided on the first rotating member. The first pin is accommodated in the first track groove and drives the first door panel to move relative to the first housing support frame by sliding in the first track groove; A second track groove is also provided on the side of the second door panel facing away from the flexible display screen, and the second rotating member is provided with a second pin shaft. The second pin shaft is accommodated in the second track groove and drives the second door panel to move relative to the second shell support frame by sliding in the second track groove.

14. An electronic device, characterized in that: The device comprises a first housing, a second housing, a flexible display screen, and a hinge mechanism as claimed in any one of claims 1 to 13, wherein: The first shell and the second shell are respectively arranged on two opposite sides of the base, and the first shell is fixedly connected to the first shell support frame, and the second shell is fixedly connected to the second shell support frame; The flexible display screen continuously covers the first shell, the second shell and the hinge mechanism, and the flexible display screen is fixedly connected to the first shell and the second shell.

Images