Rotating shaft mechanism and electronic equipment

Abstract

The invention provides a rotating shaft mechanism and electronic equipment. The rotating shaft mechanism comprises a main shaft, a first rotating piece, a first mounting plate, a first magnetic piece, a first magnetic matching piece, a second rotating piece, a second mounting plate, a second magnetic piece and a second magnetic matching piece. The first rotating part, the first mounting plate, the second rotating part and the second mounting plate are rotationally connected with the main shaft, the first rotating part is slidably connected with the first mounting plate, and the second rotating part is slidably connected with the second mounting plate. The first magnetic part is located on the first rotating part, and the first magnetic matching part is located on the first mounting plate and magnetically attracted with the first magnetic part. The second magnetic part is located on the second rotating part, and the second magnetic matching part is located on the second mounting plate and magnetically attracted with the second magnetic part. The rotating shaft mechanism generates magnetic torsion between the rotating piece and the mounting plate through the magnetic attraction force between the magnetic piece and the magnetic matching piece, so that the structure of the rotating shaft mechanism can be simplified, and the electronic equipment is light and thin.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a rotating shaft mechanism and electronic equipment. Background Art

[0002] With the gradual maturity of flexible display technology, the display mode of electronic devices has undergone very big 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.

[0003] As an important component for realizing the folding function of a foldable electronic device, the hinge mechanism has the characteristic of continuous foldability. In addition to being used to realize the change of the folding state of the electronic device, the hinge mechanism can also provide sufficient support force for the flexible display screen of the electronic device in different folding states. The existing hinge mechanism includes a main shaft and a damping assembly. When the hinge mechanism is folded, the damping assembly can provide torque to enable the hinge mechanism to rotate stably. The damping assembly adopts a cam and spring structure, and the torque is generated by rotating a cam perpendicular to the main shaft and a spring squeezing the main shaft cam surface. However, the existing hinge structure is relatively complex, which is not conducive to the thinness of foldable electronic devices. Summary of the invention

[0004] The present application provides a hinge mechanism and an electronic device, which can generate a magnetic torque between a rotating member and a mounting plate through the magnetic attraction between a magnetic member and a magnetic matching member, thereby simplifying the structure of the hinge mechanism and achieving a thinner and lighter electronic device.

[0005] In the first aspect, the present application provides a hinge mechanism for a foldable electronic device. Specifically, the hinge mechanism includes a main shaft, a first rotating assembly and a second rotating assembly. The first rotating assembly and the second rotating assembly are arranged on both sides of the main shaft. Among them, the first rotating assembly includes a first rotating member, a first mounting plate, a first magnetic member and a first magnetic matching member. The first rotating member and the first mounting plate can be rotatably connected to the main shaft respectively, and the rotation axis of the first rotating member relative to the main shaft is parallel to and does not overlap with the rotation axis of the first mounting plate relative to the main shaft, and the first rotating member is slidably connected to the first mounting plate. The first magnetic member is arranged on the first rotating member, the first magnetic matching member is arranged on the first mounting plate, and the first magnetic member is used for magnetic attraction with the first magnetic matching member. Correspondingly, the second rotating assembly includes a second rotating member, a second mounting plate, a second magnetic member and a second magnetic matching member. The second rotating member and the second mounting plate can be rotatably connected to the main shaft respectively, and the rotation axis of the second rotating member relative to the main shaft is parallel to and does not overlap with the rotation axis of the second mounting plate relative to the main shaft, and the second rotating member is slidably connected to the second mounting plate. The second magnetic member is disposed on the second rotating member, and the second magnetic matching member is disposed on the second mounting plate, and the second magnetic member is used for magnetically engaging with the second magnetic matching member. When the first mounting plate slides in a direction away from the main axis relative to the first rotating member, and the second mounting plate slides in a direction away from the main axis relative to the second rotating member, the first magnetic member and the first magnetic matching member move away from each other to provide a first resistance to the relative sliding between the first rotating member and the first mounting plate, and the second magnetic member and the second magnetic matching member move away from each other to provide a second resistance to the second rotating member and the second mounting plate. When the first mounting plate slides in a direction close to the main axis relative to the first rotating member, and the second mounting plate slides in a direction close to the main axis relative to the second rotating member, the first magnetic member and the first magnetic matching member move closer to each other to drive the first rotating member and the first mounting plate to slide relative to each other, and the second magnetic member and the second magnetic matching member move closer to each other to drive the second rotating member and the second mounting plate to slide relative to each other.

[0006] When the above-mentioned hinge mechanism is applied to an electronic device, when the electronic device is folded, the first rotating assembly and the second rotating assembly rotate toward each other. At this time, the first rotating member and the first mounting plate rotate around the main axis respectively, and the rotation axis centers do not overlap. In this way, the axis center phase difference between the first rotating member and the first mounting plate set on the same side can be achieved during the rotation of the hinge mechanism, thereby realizing the relative sliding movement of the two rotating assemblies, so that the first magnetic member and the first magnetic matching member are separated from the suction state, and a magnetic attraction force is generated between the first magnetic member and the first magnetic matching member. Through this magnetic attraction force, a first resistance can be provided to the relative sliding between the first rotating member and the first mounting plate, thereby realizing a damping function. At the same time, the second rotating member and the second mounting plate also rotate around the main axis respectively, and the rotation axis centers do not overlap. In this way, the axis center phase difference between the second rotating member and the second mounting plate set on the same side can be achieved during the rotation of the hinge mechanism, thereby realizing the relative sliding movement of the two rotating assemblies, so that the second magnetic member and the second magnetic matching member are separated from the suction state, and a magnetic attraction force is generated between the second magnetic member and the second magnetic matching member. Through this magnetic attraction force, a second resistance can be provided to the relative sliding between the second rotating member and the second mounting plate, thereby realizing a damping function. Therefore, during the folding process of the electronic device, a magnetic torque can be generated between the rotating member and the mounting plate through the magnetic attraction between the magnetic member and the magnetic matching member, thereby simplifying the structure of the hinge mechanism and achieving a lighter and thinner electronic device.

[0007] When the electronic device is unfolded, the first rotating component and the second rotating component rotate in opposite directions. At this time, the first rotating member and the first mounting plate rotate around the main axis respectively, and the first rotating member can slide relative to the first mounting plate, so that the first magnetic member and the first magnetic matching member gradually magnetically attract from the separated state, and the magnetic attraction force between the first magnetic member and the first magnetic matching member gradually increases. Through this magnetic attraction force, the first rotating member and the first mounting plate can be driven to slide relative to each other. At the same time, the second rotating member and the second mounting plate rotate around the main axis respectively, and the second rotating member can slide relative to the second mounting plate, so that the second magnetic member and the second magnetic matching member gradually magnetically attract from the separated state, and the magnetic attraction force between the second magnetic member and the second magnetic matching member gradually increases. Through this magnetic attraction force, the second rotating member and the second mounting plate can be driven to slide relative to each other. Therefore, during the unfolding process of the electronic device, the magnetic attraction force between the magnetic member and the magnetic matching member can provide power for the relative sliding between the rotating member and the mounting plate, so as to save the external force required for unfolding the electronic device and realize the self-unfolding function of the electronic device.

[0008] When the magnetic member and the magnetic matching member are specifically set, the types of the first magnetic member, the first magnetic matching member, the second magnetic member and the second magnetic matching member are not limited. In some possible technical solutions, the first magnetic member and the first magnetic matching member may be permanent magnets. In some other possible technical solutions, the first magnetic member may be a permanent magnet and the first magnetic matching member may be an electromagnet; or, the first magnetic member may be an electromagnet and the first magnetic matching member may be a permanent magnet. Similarly, the second magnetic member and the second magnetic matching member may both be permanent magnets. Or, the second magnetic member may be a permanent magnet and the second magnetic matching member may be an electromagnet; or, the second magnetic member may be an electromagnet and the second magnetic matching member may be a permanent magnet.

[0009] In the present application, the first magnetic member and the first magnetic matching member can be magnetically attracted. The first magnetic member may have a first interface that is in contact with the first magnetic matching member. When the first mounting plate slides relative to the first rotating member, the first magnetic member and the first magnetic matching member can move away from or approach each other in a direction parallel to the first interface, or the first magnetic member and the first magnetic matching member can also move away from or approach each other in a direction perpendicular to the first interface. Similarly, the second magnetic member and the second magnetic matching member can be magnetically attracted. The second magnetic member may have a second interface that is in contact with the second magnetic matching member. When the second mounting plate slides relative to the second rotating member, the second magnetic member and the second magnetic matching member can move away from or approach each other in a direction parallel to the second interface, or the second magnetic member and the second magnetic matching member can also move away from or approach each other in a direction perpendicular to the second interface.

[0010] When the first rotating member is specifically provided, the first rotating member may include a first arc-shaped rotating block and a first slider which are fixedly connected, and the first arc-shaped rotating block is located on a side of the first slider close to the main shaft. The first magnetic member is connected to the first slider. A first arc-shaped guide groove is provided on a side of the main shaft facing the first rotating member, and the first arc-shaped rotating block can be accommodated in the first arc-shaped guide groove and realizes the rotation connection between the first rotating member and the main shaft by sliding in the first arc-shaped guide groove. The first mounting plate is provided with a first slide groove, and the first slider can be accommodated in the first slide groove and realizes the sliding connection between the first rotating member and the first mounting plate by sliding in the first slide groove. Similarly, when the second rotating member is specifically provided, the second rotating member may include a second arc-shaped rotating block and a second slider which are fixedly connected, and the second arc-shaped rotating block is located on a side of the second slider close to the main shaft. The second magnetic member is connected to the second slider. A second arc-shaped guide groove is provided on a side of the main shaft facing the second rotating member, and the second arc-shaped rotating block can be accommodated in the second arc-shaped guide groove and realizes the rotation connection between the second rotating member and the main shaft by sliding in the second arc-shaped guide groove. The second mounting plate is provided with a second sliding groove, and the second sliding block can be accommodated in the second sliding groove and the second rotating member is slidably connected to the second mounting plate by sliding in the second sliding groove.

[0011] In some possible technical solutions, when the first magnetic member and the first magnetic matching member move away from or approach each other in a direction parallel to the attraction contact interface, the first magnetic member can be arranged on the first slider, and the first magnetic matching member is arranged in the first slide groove. When the first slider slides along the first slide groove, the first magnetic member and the first magnetic matching member are magnetically attracted or separated in a direction parallel to the interface where the first magnetic member and the first magnetic matching member are in adsorption contact. Similarly, when the second magnetic member and the second magnetic matching member move away from or approach each other in a direction parallel to the attraction contact interface, the second magnetic member can be arranged on the second slider, and the second magnetic matching member is arranged in the second slide groove. When the second slider slides in the second slide groove, the second magnetic member and the second magnetic matching member are magnetically attracted or separated in a direction parallel to the interface where the second magnetic member and the second magnetic matching member are in adsorption contact.

[0012] In some other possible technical solutions, when the first magnetic member and the first magnetic matching member move away from or approach each other in a direction perpendicular to the suction contact interface, the first rotating assembly may further include a first bracket. The first bracket is located on the side of the first mounting plate away from the main shaft. The end of the first slider away from the first arc-shaped rotating block extends a first slide groove and is fixedly connected to the first bracket. The first magnetic member is arranged on the first bracket and is arranged toward the first mounting plate. The first magnetic matching member is arranged on the side of the first mounting plate away from the main shaft and is arranged toward the first magnetic member. When the first slider slides along the first slide groove, the first magnetic member and the first magnetic matching member are magnetically attracted or separated in a direction perpendicular to the interface of the first magnetic member and the first magnetic matching member. Similarly, when the second magnetic member and the second magnetic matching member move away from or approach each other in a direction perpendicular to the suction contact interface, the second rotating assembly may further include a second bracket. The second bracket is located on the side of the second mounting plate away from the main shaft. The end of the second slider away from the second arc-shaped rotating block extends a second slide groove and is fixedly connected to the second bracket. The second magnetic member is arranged on the second bracket and is arranged toward the second mounting plate. The second magnetic matching piece is arranged on a side of the second mounting plate away from the main axis and toward the second magnetic piece. When the second slider slides along the second slide groove, the second magnetic piece and the second magnetic matching piece are magnetically attracted or separated in a direction perpendicular to the interface where the second magnetic piece and the second magnetic matching piece are in adsorption contact.

[0013] In order to enhance the structural strength of the first rotating assembly and the second rotating assembly, the first bracket and the first rotating member may be an integrally formed structure, and the second bracket and the second rotating member may be an integrally formed structure.

[0014] In addition, when arranged along the main axis, the first rotating member and the second rotating member can be arranged symmetrically along the center of the main axis, or the first rotating member and the second rotating member can also be arranged symmetrically along the axis of the main axis.

[0015] In a second aspect, the present application provides an electronic device. The electronic device includes a flexible display screen, a first shell, a second shell, and the hinge mechanism of the first aspect. The first shell is fixedly connected to the first mounting plate, the second shell is fixedly connected to the second mounting plate, and the flexible display screen continuously covers the first shell, the second shell, and the hinge mechanism, and is fixedly connected to the first shell and the second shell, respectively. When the electronic device is folded, the magnetic part and the magnetic matching part gradually separate and generate a magnetic attraction force, which can generate a magnetic torsion force between the rotating part and the mounting plate, thereby simplifying the structure of the hinge mechanism and realizing the lightness and thinness of the electronic device. When the electronic device is unfolded, the magnetic part and the magnetic matching part gradually approach and the magnetic attraction force gradually increases, which can provide power for the relative sliding between the rotating part and the mounting plate, so as to save the external force required to unfold the electronic device and realize the self-unfolding function of the electronic device.

[0016] When the electronic device is specifically set up, the hinge mechanism can be an inner folding hinge mechanism or an outer folding hinge mechanism, and this application does not impose specific restrictions. Specifically, when the hinge mechanism is an inner folding hinge mechanism, the rotation axis of the first rotating member rotating around the main axis is located on the side of the main axis facing the flexible display screen, and the rotation axis of the second rotating member rotating around the main axis is located on the side of the main axis facing the flexible display screen. When the hinge mechanism is an outer folding hinge mechanism, the rotation axis of the first rotating member rotating around the main axis is located on the side of the main axis away from the flexible display screen, and the rotation axis of the second rotating member rotating around the main axis is located on the side of the main axis away from the flexible display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of an electronic device in a folded state provided by an embodiment of the present application;

[0018] Figure 2 A structural schematic diagram of a rotating shaft mechanism provided in an embodiment of the present application;

[0019] Figure 3 A three-dimensional assembly diagram of the rotating shaft mechanism provided in an embodiment of the present application;

[0020] Figure 4 A schematic diagram of the folding of the rotating shaft mechanism provided in an embodiment of the present application;

[0021] Figure 5 for Figure 4 A cross-sectional view of the rotating shaft mechanism along the AA direction;

[0022] Figure 6 A schematic diagram of the folding of the rotating shaft mechanism provided in an embodiment of the present application;

[0023] Figure 7 A cross-sectional schematic diagram of a rotating shaft mechanism provided in an embodiment of the present application in an expanded state;

[0024] Figure 8 A schematic diagram of a first sliding member provided in an embodiment of the present application;

[0025] Fig. 9 Another schematic diagram of the first sliding member provided in an embodiment of the present application;

[0026] Fig.10 Another structural schematic diagram of the rotating shaft mechanism provided in an embodiment of the present application;

[0027] Fig.11 for Fig.10 A three-dimensional assembly drawing of the rotating shaft mechanism;

[0028] Fig.12 for Fig.10 A cross-sectional view of the hinge mechanism along BB when the electronic device is in an unfolded state;

[0029] Fig.13 for Fig.12 Schematic diagram of the hinge mechanism of the electronic device when it is in a closed state.

[0030] Reference numerals:

[0031] 10-Electronic equipment;

[0032] 11- first housing;

[0033] 12- second housing;

[0034] 13- Flexible display screen;

[0035] 14-rotating shaft mechanism;

[0036] 140-spindle;

[0037] 141-first rotating assembly;

[0038] 142- second rotating assembly;

[0039] 1401-first arc-shaped guide groove;

[0040] 1402-base;

[0041] 1403-cover plate;

[0042] 1404 - first track groove;

[0043] 1411-first rotating member;

[0044] 1412-first mounting plate;

[0045] 1413-first magnetic member;

[0046] 1414-first magnetic matching member;

[0047] 1415-first bracket;

[0048] 1416-first support arm;

[0049] 1417-first connecting member;

[0050] 1421- second rotating member;

[0051] 1422-second mounting plate;

[0052] 1423- second magnetic member;

[0053] 1424-second magnetic matching member;

[0054] 1425-second bracket;

[0055] 1426 - second support arm;

[0056] 1427- second connecting piece;

[0057] 14111-first arc-shaped rotating block;

[0058] 14112-first slider;

[0059] 14121-first chute;

[0060] 14151-first receiving tank;

[0061] 14211-second arc-shaped rotating block;

[0062] 14212-second slider;

[0063] 14221-second chute;

[0064] 14251-The second receiving slot. DETAILED DESCRIPTION

[0065] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings.

[0066] In order to facilitate the 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 electronic devices, reference can be made to Figure 1 , Figure 1The electronic device provided in the embodiment of the present application is in a folded state. The electronic device 10 provided in the present application may be an outward-folding electronic device. In addition to the hinge mechanism 14, the electronic device 10 may also include a flexible display screen 13, a first shell 11 and a second shell 12, wherein the flexible display screen 13 is disposed on the hinge mechanism 14. Specifically, the first shell 11 and the second shell 12 are disposed on both sides of the hinge mechanism 14 and can rotate around the hinge mechanism 14. When using the electronic device 10, it can be folded and unfolded according to different usage scenarios. Taking the outward-folding electronic device as an example, when the electronic device 10 is in the unfolded state, the flexible display screen 13 is disposed on the same side of the hinge mechanism 14, the first shell 11 and the second shell 12, and is connected to the hinge mechanism 14, the first shell 11 and the second shell 12. At this time, the outer surface of the first shell 11 facing away from the flexible display screen 13 and the outer surface of the second shell 12 facing away from the flexible display screen 13 can be used together as the appearance surface of the electronic device 10. Figure 1 As shown, when the electronic device 10 is in a folded state, the first shell 11 and the second shell 12 are arranged opposite to each other, and the flexible display screen 13 can be used as both the display surface of the electronic device 10 and the appearance surface of the electronic device 10. It can be understood that the process of the electronic device 10 from the unfolded state to the folded state, or from the folded state to the unfolded state, is the process of the first shell 11 and the second shell 12 rotating around the hinge mechanism 14. The flexible display screen 13 is bent or flattened along with the first shell 11 and the second shell 12 in this process. Of course, the above-mentioned electronic device 10 can also be an inward folding electronic device. When the electronic device 10 is in a folded state, the first shell 11, the second shell 12 and the hinge mechanism 14 can meet the water drop-shaped accommodation space required for the bending of the flexible display screen 13, avoiding pulling or squeezing the flexible display screen 13, thereby reducing the risk of damage to the flexible display screen 13.

[0067] In some current foldable electronic devices, the hinge mechanism is provided with a slider and a slide groove. When the hinge mechanism is folded or unfolded, the slider slides along the slide groove, thereby limiting the rotation direction of the hinge mechanism. However, when the hinge mechanism is subjected to a slight external force in the flattened state, the foldable electronic device may shake, thereby affecting the reliability of the entire structure of the electronic device and the user experience.

[0068] Therefore, the present application provides a hinge mechanism and an electronic device, which can generate a magnetic torque between a rotating member and a mounting plate through the magnetic attraction between a magnetic member and a magnetic matching member, thereby simplifying the structure of the hinge mechanism and achieving a thinner and lighter electronic device.

[0069] 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 be limiting of the present application. As used in the specification and appended claims of the present application, the singular expressions "a", "an", "said", "above", "the" and "this" are intended to also include expressions such as "one or more", unless there is a clear indication to the contrary in the context.

[0070] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear at different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0071] Figure 2 A schematic diagram of a structure of a rotating shaft mechanism provided in an embodiment of the present application, Figure 3 This is a three-dimensional assembly diagram of the rotating shaft mechanism provided in the embodiment of the present application. Figure 2 and Figure 3 As shown, the shaft mechanism 14 includes a main shaft 140 and a rotating module. The number of rotating modules in the shaft mechanism 14 is not limited in the present application. For example, the shaft mechanism 14 may include only one rotating module, or may include multiple rotating modules. When the shaft mechanism 14 includes multiple rotating modules, the multiple rotating modules may be arranged at intervals along the length direction of the shaft mechanism 14. In the present application, the length direction of the shaft mechanism 14 is Figure 1 The extending direction of the axis about which the first shell 11 and the second shell 12 rotate around the rotating shaft mechanism 14 is shown in FIG.

[0072] Please continue to refer to Figure 2 and Figure 3, the rotating module may include a first rotating component 141 and a second rotating component 142. The first rotating component 141 and the second rotating component 142 are relatively arranged on both sides of the main shaft 140, and the main shaft 140 can serve as a bearing component for the first rotating component 141 and the second rotating component 142. It is worth mentioning that in the embodiment of the present application, when there are multiple rotating modules, the first rotating components 141 and the second rotating components 142 of the multiple rotating modules can all use the same main shaft 140 as a bearing component to improve the degree of integration of the rotating shaft mechanism 14. In some other possible embodiments of the present application, the rotating shaft mechanism 14 can be provided with a main shaft 140 corresponding to each rotating module, so that the first rotating component 141 and the second rotating component 142 of each rotating module use the corresponding main shaft 140 as a bearing component.

[0073] Specifically, the first rotating component 141 may include a first rotating member 1411, a first mounting plate 1412, a first magnetic member 1413 and a first magnetic matching member 1414. The first rotating member 1411 and the first mounting plate 1412 are respectively rotatably connected to the main shaft 140, and the rotation axis of the first rotating member 1411 relative to the main shaft 140 is parallel to and does not overlap with the rotation axis of the first mounting plate 1412 relative to the main shaft 140. The first rotating member 1411 may be slidably connected to the first mounting plate 1412. The first magnetic member 1413 is disposed on the first rotating member 1411, and the first magnetic matching member 1414 is disposed on the first mounting plate 1412. The first magnetic member 1413 may be magnetically attracted to the first magnetic matching member 1414. Correspondingly, the second rotating component 142 may include a second rotating member 1421, a second mounting plate 1422, a second magnetic member 1423 and a second magnetic matching member 1424. The second rotating member 1421 and the second mounting plate 1422 are respectively rotatably connected to the main shaft 140, and the rotation axis of the second rotating member 1421 relative to the main shaft 140 and the rotation axis of the second mounting plate 1422 relative to the main shaft 140 are parallel and do not overlap. The second rotating member 1421 can be slidably connected to the second mounting plate 1422. The second magnetic member 1423 is disposed on the second rotating member 1421, and the second magnetic matching member 1424 is disposed on the second mounting plate 1422, and the second magnetic member 1423 can be magnetically attracted to the second magnetic matching member 1424.

[0074] Figure 4 A schematic diagram of the folding of the rotating shaft mechanism provided in an embodiment of the present application is shown in FIG. Figure 5 for Figure 4 The cross-sectional diagram of the rotating shaft mechanism along the AA direction. Figure 4 and Figure 5As shown, when the electronic device 10 is folded, the first rotating component 141 and the second rotating component 142 of the hinge mechanism 14 rotate towards each other. At this time, the first rotating member 1411 and the first mounting plate 1412 can rotate around the main shaft 140 respectively, and during the rotation process, the axial phase difference between the first rotating member 1411 and the first mounting plate 1412 arranged on the same side is realized, so that the first mounting plate 1412 can slide relative to the first rotating member 1411 in a direction away from the main shaft 140, so that the first magnetic member 1413 and the first magnetic matching member 1414 gradually move away from each other from the attracted state, and a magnetic attraction is generated between the first magnetic member 1413 and the first magnetic matching member 1414. Through the magnetic attraction, a first resistance can be provided to the relative sliding between the first rotating member 1411 and the first mounting plate 1412 to realize a damping function. At the same time, the second rotating member 1421 and the second mounting plate 1422 also rotate around the main shaft 140 respectively, and during the rotation process, the axial phase difference between the second rotating member 1421 and the second mounting plate 1422 arranged on the same side is realized, so that the second mounting plate 1422 can slide relative to the second rotating member 1421 in a direction away from the main shaft 140, so that the second magnetic member 1423 and the second magnetic matching member 1424 gradually move away from each other from the attracted state, and a magnetic attraction is generated between the second magnetic member 1423 and the second magnetic matching member 1424. The magnetic attraction can provide a second resistance to the relative sliding between the second rotating member 1421 and the second mounting plate 1422, thereby realizing a damping function. In this way, during the folding process, the magnetic attraction between the first magnetic part 1413 and the first magnetic matching part 1414 can produce a damping effect on the relative sliding between the first rotating part 1411 and the first mounting plate 1412, and the magnetic attraction between the second magnetic part 1423 and the second magnetic matching part 1424 can produce a damping effect on the relative sliding between the second rotating part 1421 and the second mounting plate 1422, thereby providing torque for the relative rotation of the first rotating component 141 and the second rotating component 142 to achieve a more stable rotation.

[0075] Figure 6 A schematic diagram of the folding of the rotating shaft mechanism provided in an embodiment of the present application is shown in FIG. Figure 7 The cross-sectional diagram of the rotating shaft mechanism provided in the embodiment of the present application in the unfolded state. Figure 6 and Figure 7As shown, when the electronic device 10 is unfolded, the first rotating component 141 and the second rotating component 142 rotate in opposite directions. At this time, the first rotating member 1411 and the first mounting plate 1412 rotate around the main shaft 140 respectively. During the rotation process, the axis between the first rotating member 1411 and the first mounting plate 1412 arranged on the same side realizes phase difference, so that the first mounting plate 1412 can slide relative to the first rotating member 1411 in the direction close to the main shaft 140, so that the first magnetic member 1413 and the first magnetic matching member 1414 gradually approach each other from the separated state, and the magnetic attraction between the first magnetic member 1413 and the first magnetic matching member 1414 is generated and gradually increases until magnetic attraction. Through this magnetic attraction, the first rotating member 1411 and the first mounting plate 1412 can be driven to slide relative to each other. At the same time, the second rotating member 1421 and the second mounting plate 1422 rotate around the main shaft 140 respectively. During the rotation process, the axis of the second rotating member 1421 and the second mounting plate 1422 arranged on the same side realizes phase difference, so that the second mounting plate 1422 can slide relative to the second rotating member 1421, so that the second magnetic member 1423 and the second magnetic matching member 1424 gradually approach each other from the separated state, and the magnetic attraction between the second magnetic member 1423 and the second magnetic matching member 1424 gradually increases until the magnetic attraction. The second rotating member 1421 and the second mounting plate 1422 can be driven to slide relative to each other through the magnetic attraction. In this way, during the unfolding process, the magnetic attraction between the first magnetic member 1413 and the first magnetic matching member 1414 can generate a first driving force for the relative sliding between the first rotating member 1411 and the first mounting plate 1412, and the magnetic attraction between the second magnetic member 1423 and the second magnetic matching member 1424 can generate a second driving force for the relative sliding between the second rotating member 1421 and the second mounting plate 1422, thereby reducing the external force required for unfolding the electronic device 10, and realizing the self-unfolding function of the electronic device 10.

[0076] In the above-mentioned hinge mechanism 14, the magnetic member is arranged on the rotating member, and the magnetic matching member is arranged on the mounting plate. Through the magnetic attraction between the magnetic member and the magnetic matching member, a magnetic torsion force is generated between the rotating member and the mounting plate, thereby simplifying the structure of the hinge mechanism 14 and achieving a thinner and lighter electronic device 10.

[0077] In some embodiments of the present application, the first magnetic member 1413 and the first magnetic matching member 1414 may both be permanent magnets, so as to further simplify the structure of the rotating shaft mechanism 14 and reduce the manufacturing cost of the electronic device 10. In some other embodiments, the first magnetic member 1413 may be a permanent magnet, and the first magnetic matching member 1414 may be an electromagnet. By controlling the current of the electromagnet and the number of turns of the coil, the magnetic attraction between the first magnetic member 1413 and the first magnetic matching member 1414 can be adjusted, so as to achieve the adjustment of the magnetic torque. Correspondingly, the second magnetic member 1423 and the second magnetic matching member 1424 may also both be permanent magnets. Alternatively, the second magnetic member 1423 may be a permanent magnet, and the second magnetic matching member 1424 may be an electromagnet, which will not be described one by one here.

[0078] Figure 8 A schematic diagram of a first sliding member provided in an embodiment of the present application. Figure 8 As shown, in some embodiments of the present application, the first rotating member 1411 may specifically include a first arc-shaped rotating block 14111 and a first sliding block 14112 that are fixedly connected. The first arc-shaped rotating block 14111 is located on a side of the first sliding block 14112 close to the main shaft 140. The first magnetic member 1413 may be connected to the first sliding block 14112. Figure 7 As shown, a first arc-shaped guide groove 1401 is provided on one side of the main shaft 140 facing the first rotating member 1411. The first arc-shaped rotating block 14111 can be accommodated in the first arc-shaped guide groove 1401 and realize the rotation connection between the first rotating member 1411 and the main shaft 140 by sliding in the first arc-shaped guide groove 1401. Figure 3 As shown, the first mounting plate 1412 is provided with a first slide groove 14121, and the first slider 14112 can be accommodated in the first slide groove 14121 and realize the sliding connection between the first rotating member 1411 and the first mounting plate 1412 by sliding in the first slide groove 14121. Figure 3 and Figure 8 As shown, the second rotating member 1421 may specifically include a second arc-shaped rotating block 14211 and a second slider 14212 that are fixedly connected. The second arc-shaped rotating block 14211 is located on a side of the second slider 14212 close to the main shaft 140. The second magnetic member 1423 may be connected to the second slider 14212. A second arc-shaped guide groove (not shown) is provided on one side of the main shaft 140 facing the second rotating member 1421, and the second arc-shaped rotating block 14211 may be accommodated in the second arc-shaped guide groove and realize the rotation connection between the second rotating member 1421 and the main shaft 140 by sliding in the second arc-shaped guide groove. The second mounting plate 1422 is provided with a second slide groove 14221, and the second slider 14212 may be accommodated in the second slide groove 14221 and realize the sliding connection between the second rotating member 1421 and the second mounting plate 1422 by sliding in the second slide groove 14221.

[0079] One end of the first slider 14112 is fixedly connected to the first arc-shaped rotating block 14111, and the other end extends out of the end of the first slide slot 14121 away from the main shaft 140, and is limited at the end of the first slide slot 14121 to prevent the first slider 14112 from accidentally sliding out of the first slide slot 14121. Correspondingly, one end of the second slider 14212 is fixedly connected to the second arc-shaped rotating block 14211, and the other end extends out of the end of the second slide slot 14221 away from the main shaft 140, and is limited at the end of the second slide slot 14221 to prevent the second slider 14212 from accidentally sliding out of the second slide slot 14221.

[0080] In the embodiment of the present application, the relative positions of the first rotating member 1411 and the second rotating member 1421 are not specifically limited. For example, in some embodiments, the first rotating member 1411 and the second rotating member 1421 can be arranged symmetrically along the main axis 140. Figure 6 As shown, in some other embodiments, the first rotating member 1411 and the second rotating member 1421 may also be symmetrically arranged along the center of the main axis 140 .

[0081] In some embodiments, the first magnetic member 1413 can be disposed on the first slider 14112, and the first magnetic matching member 1414 is disposed in the first slide groove 14121. When the first slider 14112 slides along the first slide groove 14121, the first magnetic member 1413 and the first magnetic matching member 1414 are magnetically attracted or separated in a direction parallel to the interface where the first magnetic member 1413 and the first magnetic matching member 1414 are in adsorption contact. Similarly, the second magnetic member 1423 can be disposed on the second slider 14212, and the second magnetic matching member is disposed in the second slide groove. When the second slider 14212 slides in the second slide groove, the second magnetic member 1423 and the second magnetic matching member 1424 are magnetically attracted or separated in a direction parallel to the interface where the second magnetic member 1423 and the second magnetic matching member 1424 are in adsorption contact.

[0082] like Figure 3As shown, in some other embodiments, the first rotating assembly 141 may further include a first bracket 1415, and the first bracket 1415 is connected to the first rotating member 1411. In this embodiment, the first bracket 1415 may be provided with a first receiving groove 14151, and the first magnetic matching member 1414 may be installed in the first receiving groove 14151. Correspondingly, the second rotating assembly 142 may further include a second bracket 1425, and the second bracket 1425 is connected to the second rotating member 1421. The second bracket 1425 may be provided with a second receiving groove 14251, and the second magnetic matching member 1424 may be installed in the second receiving groove 14251. In the above embodiments, the first bracket 1415 may be connected to the first rotating member 1411 by welding, bonding, threaded connection, clamping, etc., and the second bracket 1425 may be connected to the second rotating member 1421 by welding, bonding, threaded connection, clamping, etc. Fig. 9 Another schematic diagram of the first sliding member provided in the embodiment of the present application. Figure 6 and Fig. 9 As shown, in some other embodiments, the first bracket 1415 and the first rotating member 1411 can be an integrally formed structure, and the second bracket 1425 and the second rotating member 1421 can also be an integrally formed structure, thereby reducing the number of parts of the hinge mechanism 14 and simplifying the structure of the electronic device 10.

[0083] like Figure 6As shown, in the present application, the first magnetic member 1413 may have a first interface S1 that is attracted and in contact with the first magnetic matching member 1414, and the second magnetic member 1423 may have a second interface S2 that is in contact with the second magnetic matching member 1424. In some embodiments, when the first mounting plate 1412 slides relative to the first rotating member 1411, the first magnetic member 1413 and the first magnetic matching member 1414 may move away from or approach each other in a direction parallel to the first interface S1. At this time, the first magnetic member 1413 may be arranged on a side of the first sliding block 14112 facing the first slide groove 14121, and the first magnetic matching member 1414 may be correspondingly arranged in the first slide groove 14121. When the second mounting plate 1422 slides relative to the second rotating member 1421, the second magnetic member 1423 and the second magnetic matching member 1424 may move away from or approach each other in a direction parallel to the second interface S2. At this time, the second magnetic member 1423 can be arranged on the side of the second slider 14212 facing the second slide groove 14221, and the second magnetic matching member 1424 can be correspondingly arranged in the second slide groove 14221. In some other embodiments, when the first mounting plate 1412 slides relative to the first rotating member 1411, the first magnetic member 1413 and the first magnetic matching member 1414 can move away from or approach each other in a direction perpendicular to the first interface S1. At this time, the first magnetic member 1413 can be arranged on the side of the first slider 14112 facing the end face of the first slide groove 14121, and the first magnetic matching member 1414 can be arranged at the end of the first slide groove 14121 away from the main shaft 140. In this embodiment, the first rotating member 1411 can be an L-shaped rotating member. Alternatively, the first magnetic member 1413 may also be disposed in the first receiving groove 14151 of the first bracket 1415, and the first magnetic matching member 1414 may be disposed on the side of the first mounting plate 1412 that is away from the main shaft 140 and is disposed toward the first magnetic member 1413. When the second mounting plate 1422 slides relative to the second rotating member 1421, the second magnetic member 1423 and the second magnetic matching member 1424 may move away from or approach each other in a direction perpendicular to the second interface S2. At this time, the second magnetic member 1423 may be disposed on the side of the second slider 14212 that is toward the end face of the second slide groove 14221, and the second magnetic matching member 1424 may be disposed at the end of the second slide groove 14221 that is away from the main shaft 140. In this embodiment, the second rotating member 1421 may be an L-shaped rotating member. Alternatively, the second magnetic component 1423 may also be disposed in the second receiving groove 14251 of the second bracket 1425 , and the second magnetic matching component 1424 is disposed on a side of the second mounting plate 1422 away from the main shaft 140 and toward the second magnetic component 1423 .

[0084] like Figure 4 As shown, the first rotating member 1411 and the second rotating member 1421 can be used as a driving mechanism for folding or unfolding the electronic device 10 . Fig.10 Another structural schematic diagram of the rotating shaft mechanism provided in an embodiment of the present application, Fig.11 for Fig.10 The three-dimensional assembly diagram of the rotating shaft mechanism. Fig.10 and Fig.11 As shown, in a structure of the rotating shaft structure 14, the first rotating assembly 141 may further include a first support arm 1416 and a first connecting member 1417. The first connecting member 1417 is located between the first rotating member 1411 and the first supporting arm 1416, the first connecting member 1417 is rotatably connected to the first rotating member 1411, and the first connecting member 1417 is rotatably connected to the first supporting arm 1416, so that the first rotating member 1411 and the first supporting arm 1416 are mutually pulled through the first connecting member 1417. Correspondingly, the second rotating assembly 142 may further include a second supporting arm 1426 and a second connecting member 1427. Among them, the second connecting member 1427 is located between the second rotating member 1421 and the second support arm 1426, the second connecting member 1427 is rotationally connected to the second rotating member 1421, and the second connecting member 1427 is rotationally connected to the second support arm 1426, so that the second rotating member 1421 and the second support arm 1426 perform mutual pulling movement through the second connecting member 1427.

[0085] Fig.12 for Fig.10 A cross-sectional view of the hinge mechanism along BB when the electronic device is in the unfolded state, Fig.13 for Fig.12 Schematic diagram of the hinge mechanism of the electronic device when it is in a closed state. Fig.12 and Fig.13As shown, in the above embodiment, the main shaft 140 may include a base 1402 and a cover plate 1403, and the cover plate 1403 is covered on the base 1402. The base 1402 is provided with a first track groove 1404, and the first connecting member 1417 can move along the first track groove 1404, so that the movement track of the first connecting member 1417 can be limited. In the process of the electronic device 10 from the unfolded state to the closed state, the first connecting member 1417 can move toward the first rotating member 1411 in the first track groove 1404, and in the process of the electronic device 10 from the closed state to the unfolded state, the first connecting member 1417 can move toward the first supporting arm 1416 in the first track groove 1404, so that the first connecting member 1417 can move relative to the main shaft 140 according to the set track. Similarly, the base 1402 is provided with a second track groove, and the second connecting member 1427 can move along the second track groove, so that the movement track of the second connecting member 1427 can be limited. When the electronic device 10 is in the process of changing from the unfolded state to the closed state, the second connecting member 1427 can move in the second track groove toward the second rotating member 1421, and when the electronic device 10 is in the process of changing from the closed state to the unfolded state, the second connecting member 1427 can move in the second track groove toward the second supporting arm 1426, so that the second connecting member 1427 can move relative to the main shaft 140 according to the set track. Of course, in some other embodiments, the first rotating member 1411 and the second rotating member 1421 can also be used as a limiting structure to limit the folding direction and the unfolding direction of the electronic device 10.

[0086] When the electronic device 10 is an outward-folding electronic device, the hinge mechanism 14 is an outward-folding hinge mechanism, wherein the rotation axis of the first rotating member 1411 rotating around the main axis 140 is located on the side of the main axis 140 away from the flexible display screen 13, and the rotation axis of the second rotating member 1421 rotating around the main axis 140 is located on the side of the main axis 140 away from the flexible display screen 13. When the electronic device 10 is an inward-folding electronic device, the hinge mechanism 14 is an inward-folding hinge mechanism, wherein the rotation axis of the first rotating member 1411 rotating around the main axis 140 is located on the side of the main axis 140 facing the flexible display screen 13, and the rotation axis of the second rotating member 1421 rotating around the main axis 140 is located on the side of the main axis 140 facing the flexible display screen 13.

[0087] The terms used in the above embodiments are only for the purpose of describing specific embodiments and are not intended to be used as limitations on the present application. As used in the specification and appended claims of the present application, the singular expressions "a", "a", "said", "above", "the" and "this" are intended to also include expressions such as "one or more", unless there is a clear indication to the contrary in the context.

[0088] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A hinge mechanism for a foldable electronic device, characterized in that: The rotating shaft mechanism comprises a main shaft, a first rotating assembly and a second rotating assembly, wherein the first rotating assembly and the second rotating assembly are arranged on two sides of the main shaft opposite to each other, wherein: The first rotating assembly comprises a first rotating member, a first mounting plate, a first magnetic member and a first magnetic matching member; the first rotating member and the first mounting plate are respectively rotatably connected to the main shaft, and the rotation axis of the first rotating member relative to the main shaft is parallel to and does not overlap with the rotation axis of the first mounting plate relative to the main shaft, and the first rotating member is slidably connected to the first mounting plate; the first magnetic member is arranged on the first rotating member, the first magnetic matching member is arranged on the first mounting plate, and the first magnetic member is used for magnetic attraction with the first magnetic matching member; The second rotating assembly comprises a second rotating member, a second mounting plate, a second magnetic member and a second magnetic matching member; the second rotating member and the second mounting plate are respectively rotatably connected to the main shaft, and the rotation axis of the second rotating member relative to the main shaft and the rotation axis of the second mounting plate relative to the main shaft are parallel and do not overlap, and the second rotating member is slidably connected to the second mounting plate; the second magnetic member is arranged on the second rotating member, the second magnetic matching member is arranged on the second mounting plate, and the second magnetic member is used for magnetic attraction with the second magnetic matching member; When the first mounting plate slides relative to the first rotating member in a direction away from the main axis, and the second mounting plate slides relative to the second rotating member in a direction away from the main axis, the first magnetic member and the first magnetic matching member move away from each other to provide a first resistance to the relative sliding between the first rotating member and the first mounting plate, and the second magnetic member and the second magnetic matching member move away from each other to provide a second resistance to the second rotating member and the second mounting plate; When the first mounting plate slides relative to the first rotating member in a direction close to the main axis, and the second mounting plate slides relative to the second rotating member in a direction close to the main axis, the first magnetic member and the first magnetic matching member magnetically approach each other to drive the first rotating member and the first mounting plate to slide relative to each other, and the second magnetic member and the second magnetic matching member magnetically approach each other to drive the second rotating member and the second mounting plate to slide relative to each other.

2. The rotating shaft mechanism according to claim 1, characterized in that: The first magnetic member and the first magnetic matching member are both permanent magnets; or, the first magnetic member is a permanent magnet and the first magnetic matching member is an electromagnet; The second magnetic member and the second magnetic matching member are both permanent magnets; or, the second magnetic member is a permanent magnet, and the second magnetic matching member is an electromagnet.

3. The rotating shaft mechanism according to claim 1 or 2, characterized in that: The first magnetic member has a first interface that is in contact with the first magnetic matching member by suction, and when the first mounting plate slides relative to the first rotating member, the first magnetic member and the first magnetic matching member move away from or approach each other in a direction parallel to the first interface; The second magnetic member has a second interface that is in suction contact with the second magnetic matching member; when the second mounting plate slides relative to the second rotating member, the second magnetic member and the second magnetic matching member move away from or approach each other in a direction parallel to the second interface.

4. The rotating shaft mechanism according to claim 1 or 2, characterized in that: The first magnetic member has a first interface that is in contact with the first magnetic matching member by suction, and when the first mounting plate slides relative to the first rotating member, the first magnetic member and the first magnetic matching member move away from or approach each other in a direction perpendicular to the first interface; The second magnetic member has a second interface that is in suction contact with the second magnetic matching member; when the second mounting plate slides relative to the second rotating member, the second magnetic member and the second magnetic matching member move away from or approach each other in a direction perpendicular to the second interface.

5. The rotating shaft mechanism according to any one of claims 1 to 4, characterized in that: The first rotating member comprises a first arc-shaped rotating block and a first sliding block which are fixedly connected, the first arc-shaped rotating block being located on a side of the first sliding block close to the main shaft; the first magnetic member is connected to the first sliding block; a first arc-shaped guiding groove is provided on a side of the main shaft facing the first rotating member, the first arc-shaped rotating block is accommodated in the first arc-shaped guiding groove, and the first rotating member is rotatably connected to the main shaft by sliding in the first arc-shaped guiding groove; the first mounting plate is provided with a first sliding groove, the first sliding block is accommodated in the first sliding groove, and the first rotating member is slidably connected to the first mounting plate by sliding in the first sliding groove; The second rotating member includes a second arc-shaped rotating block and a second sliding block that are fixedly connected, the second arc-shaped rotating block is located on a side of the second sliding block close to the main shaft; the second magnetic member is connected to the second sliding block; a second arc-shaped guide groove is provided on the side of the main shaft facing the second rotating member, the second arc-shaped rotating block is accommodated in the second arc-shaped guide groove and the second rotating member is rotationally connected to the main shaft by sliding in the second arc-shaped guide groove; the second mounting plate is provided with a second slide groove, the second sliding block is accommodated in the second slide groove, and the second rotating member is slidingly connected to the second mounting plate by sliding in the second slide groove.

6. The rotating shaft mechanism according to claim 5, characterized in that: When the first magnetic member and the first magnetic matching member move away from or approach each other along a direction parallel to the attraction contact interface, and the second magnetic member and the second magnetic matching member move away from or approach each other along a direction parallel to the attraction contact interface, the first magnetic member is arranged on the first slider, the first magnetic matching member is arranged in the first slide groove, the second magnetic member is arranged on the second slider, and the second magnetic matching member is arranged in the second slide groove.

7. The rotating shaft mechanism according to claim 5, characterized in that: When the first magnetic member and the first magnetic matching member move away from or approach each other in a direction perpendicular to the suction contact interface, and the second magnetic member and the second magnetic matching member move away from or approach each other in a direction perpendicular to the suction contact interface, the first rotating assembly also includes a first bracket, the first bracket is located on a side of the first mounting plate facing away from the main shaft, an end of the first sliding block facing away from the first arc-shaped rotating block extends out of the first sliding groove and is fixedly connected to the first bracket, the first magnetic member is arranged on the first bracket and is arranged toward the first mounting plate, the first magnetic matching member is arranged on a side of the first mounting plate facing away from the main shaft and is arranged toward the first magnetic member; the second rotating assembly also includes a second bracket, the second bracket is located on a side of the second mounting plate facing away from the main shaft, an end of the second sliding block facing away from the second arc-shaped rotating block extends out of the second sliding groove and is fixedly connected to the second bracket, the second magnetic member is arranged on the second bracket and is arranged toward the second mounting plate, and the second magnetic matching member is arranged on a side of the second mounting plate facing away from the main shaft and is arranged toward the second magnetic member.

8. The rotating shaft mechanism according to claim 7, characterized in that: The first bracket and the first rotating member are an integrally formed structure, and the second bracket and the second rotating member are an integrally formed structure.

9. The rotating shaft mechanism according to any one of claims 5 to 8, characterized in that: The first rotating member and the second rotating member are centrally symmetrically arranged or axisymmetrically arranged along the main axis.

10. An electronic device, characterized in that: It includes a flexible display screen, a first shell, a second shell and a hinge mechanism as described in any one of claims 1 to 9, wherein the first shell is fixedly connected to the first mounting plate, the second shell is fixedly connected to the second mounting plate, and the flexible display screen continuously covers the first shell, the second shell and the hinge mechanism, and is fixedly connected to the first shell and the second shell respectively.

11. The electronic device according to claim 10, characterized in that: The rotation axis of the first rotating member rotating around the main axis is located on the side of the main axis facing the flexible display screen, and the rotation axis of the second rotating member rotating around the main axis is located on the side of the main axis facing the flexible display screen; or, The rotation axis of the first rotating member rotating around the main axis is located on a side of the main axis away from the flexible display screen, and the rotation axis of the second rotating member rotating around the main axis is located on a side of the main axis away from the flexible display screen.

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