Rotating shaft mechanism and electronic equipment

Abstract

A rotating shaft mechanism comprises a base (210), at least two swing arm assemblies (120) and at least two door plate assemblies (340), the swing arm assemblies (120) and the door plate assemblies (340) are arranged on the two sides of the base respectively, the swing arm assemblies (120) are rotatably connected to the base, and the door plate assemblies (340) are arranged on the two sides of the base respectively; in the swing arm assembly and the door plate assembly which are located on the same side of the base, one end, connected with the door plate assembly, of the swing arm assembly or one end, connected with the swing arm assembly, of the door plate assembly is provided with a first arc-shaped sliding part (203) and a second arc-shaped sliding matching part (204). And the other one is provided with a first arc-shaped sliding matching part (301) and a second arc-shaped sliding matching part (302), the first arc-shaped sliding matching part is in sliding fit with the first arc-shaped sliding matching part, and the second arc-shaped sliding matching part is in sliding fit with the second arc-shaped sliding matching part, so that the swing arm assembly is rotationally connected with the door plate assembly. The invention also provides electronic equipment. The structural arrangement of the rotating shaft mechanism is beneficial to improving the reliability of the rotating shaft.

Description

Rotating shaft mechanism and electronic equipment

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on July 10, 2023, with application number 202310842560.0 and invention name “Rotating shaft mechanism and electronic device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of electronic products, and in particular to a rotating shaft mechanism and an electronic device. Background Art

[0003] As flexible folding screen technology matures, the application of foldable terminal products is becoming more and more widespread. Foldable terminal products (such as foldable mobile phones, foldable tablets, foldable computers, etc.) need to meet high-quality appearance and a good user experience in order to be accepted by consumers. Currently, the rotation of foldable terminal products is usually achieved through a slide. However, the structural setting of the existing swing arm slide results in insufficient overlap of the swing arm, resulting in poor reliability of foldable electronic devices during use.

[0004] Summary of the Invention

[0005] The embodiments of the present application provide a hinge mechanism and an electronic device. The configuration of the hinge mechanism is conducive to improving the reliability of the electronic device while ensuring the rotational motion of the hinge.

[0006] In a first aspect, the present application provides a pivot mechanism, which includes a base, at least two swing arm assemblies and at least two door panel assemblies.

[0007] The swing arm assembly is respectively arranged on both sides of the base, and one end of the swing arm assembly is rotatably connected to the base; at least two door panel assemblies are respectively arranged on both sides of the base;

[0008] In the swing arm assembly and the door panel assembly on the same side of the base, one end of the door panel assembly is connected to the end of the swing arm assembly away from the base; one of the end of the door panel assembly connected to the swing arm assembly and the end of the swing arm assembly connected to the door panel assembly is provided with a first arc-shaped sliding portion and a second arc-shaped sliding fitting portion, and the other is provided with a first arc-shaped sliding fitting portion and a second arc-shaped sliding portion; the first arc-shaped sliding portion is slidably fitted with the first arc-shaped sliding fitting portion, and the second arc-shaped sliding portion is slidably fitted with the second arc-shaped sliding fitting portion, so that the swing arm assembly is rotatably connected to the door panel assembly.

[0009] Along the length direction of the base, the first arc-shaped sliding portion and the second arc-shaped sliding fitting portion are alternately arranged; the first arc-shaped sliding fitting portion and the second arc-shaped sliding portion are alternately arranged.

[0010] Similarly, the door panel assembly is provided with two first arc-shaped sliding fitting parts and a second arc-shaped sliding part at one end close to the swing arm assembly. The fitting method of the two first arc-shaped sliding fitting parts and the second arc-shaped sliding parts on the door panel assembly is the same as that of the swing arm assembly, which will not be repeated here.

[0011] Among them, the two first arc-shaped sliding fitting parts can allow the first arc-shaped sliding parts to slide on them, and the second arc-shaped sliding fitting parts can allow the second arc-shaped sliding parts to slide on them, through the sliding fitting between the second arc-shaped sliding parts and the second arc-shaped sliding fitting parts and the sliding fitting between the third arc-shaped sliding parts and the third arc-shaped sliding fittings, so that the swing arm assembly and the door panel assembly are rotatably connected.

[0012] In addition, by arranging two first arc-shaped sliding and second arc-shaped sliding matching parts on the swing arm assembly and two first arc-shaped sliding matching parts and second arc-shaped sliding parts on the door panel assembly, on the one hand, the sliding trajectory of the swing arm assembly and the door panel assembly is jointly defined by the two first arc-shaped sliding parts and the two first arc-shaped sliding parts and the second arc-shaped sliding and second arc-shaped sliding matching parts, which can reduce the assembly accuracy requirements of the swing arm assembly and the door panel assembly, thereby reducing the processing difficulty and processing cost of the swing arm assembly and the door panel assembly.

[0013] On the other hand, the sliding trajectory of the swing arm assembly and the door panel assembly is jointly defined by the two first arc-shaped sliding parts and the second arc-shaped sliding fitting parts and the two first arc-shaped sliding fitting parts and the second arc-shaped sliding parts. The first arc-shaped sliding part and the second arc-shaped sliding part and the two first arc-shaped sliding fitting parts and the second arc-shaped sliding part are distributedly arranged. The distributed arrangement of multiple arc-shaped sliding fitting parts can increase the overlap amount between the swing arm assembly and the door panel assembly, increase the connection strength between the swing arm assembly and the door panel assembly, make the swing arm assembly and the door panel assembly not easy to fall off when sliding relative to each other, and have good reliability.

[0014] In one possible embodiment, the swing arms on both sides of the base can be arranged relative to each other, that is, they are approximately in the same position in the length direction of the base, or they can be arranged not relative to each other, that is, they are staggered along the length direction of the base; the door panel assemblies on both sides of the base can be arranged relative to each other, that is, they are approximately in the same position in the length direction of the base, or they can be arranged not relative to each other, that is, they are staggered along the length direction of the base.

[0015] In a possible embodiment, the first arc-shaped sliding portion and the second arc-shaped sliding fitting portion are an integral structure with the swing arm assembly, and / or the first arc-shaped sliding fitting portion and the second arc-shaped sliding portion are an integrally formed integral structure with the door panel assembly.

[0016] In a possible implementation manner, one of the two first arc-shaped sliding portions and the two first arc-shaped sliding fitting portions is an arc-shaped protrusion, and the other is an arc-shaped sliding groove, and the two can also be swapped.

[0017] In one possible embodiment, the first arcuate sliding portion is in surface contact with the first arcuate sliding mating portion, and the second arcuate sliding portion is in surface contact with the second arcuate sliding mating portion. The arcuate slide rail can slide along the wall of the arcuate slide groove and make surface contact with the wall of the arcuate slide groove. Compared to point contact and pre-contact methods, this method improves the stability of the rotational fit between the swing arm assembly and the door panel assembly.

[0018] In one possible embodiment, one of the two first arc-shaped sliding parts and the two first arc-shaped sliding fitting parts can be an arc-shaped groove, and the other can include multiple sub-sliding parts; one of the second arc-shaped sliding part and the second arc-shaped sliding fitting part can be an arc-shaped groove, and the other can include multiple sub-sliding parts, and the sub-sliding part can be a rod-shaped structure, a block structure, etc.

[0019] In one possible embodiment, the door panel assembly includes a door panel and a connecting member, the connecting member is rotatably connected to the door panel, one end of the connecting member is connected to the swing arm assembly, and one end of the swing arm assembly is connected to the connecting member, one of which is provided with the first arc-shaped sliding portion and the second arc-shaped sliding fitting portion, and the other is provided with the first arc-shaped sliding fitting portion and the second arc-shaped sliding portion.

[0020] In one possible embodiment, the door panel assembly includes a door panel and a connecting piece, one end of the connecting piece connected to the door panel and one end of the door panel connected to the connecting piece, one of which is provided with a third arc-shaped sliding portion and a fourth arc-shaped sliding fitting portion, and the other is provided with a third arc-shaped sliding fitting portion and a fourth arc-shaped sliding portion.

[0021] It can be understood that the connection method between the connecting member and the door panel can refer to the connection method between the swing arm assembly and the door panel assembly in the above embodiment, and its specific effects and structural settings are not repeated here.

[0022] In one possible embodiment, the swing arm assembly includes a first swing arm and a second swing arm, wherein the first swing arm is rotatably connected to the base, and the second swing arm is rotatably connected to the door panel assembly. The first swing arm and the second swing arm are rotatably connected, and one of the ends of the first swing arm connected to the second swing arm and the end of the second swing arm connected to the first swing arm is provided with two fifth arcuate sliding portions and a sixth arcuate sliding mating portion, while the other is provided with two fifth arcuate sliding mating portions and a sixth arcuate sliding portion.

[0023] It can be understood that the connection method between the first swing arm and the second swing arm can be understood by referring to the connection method between the swing arm assembly and the door panel assembly in the above embodiment, and the specific connection structure and effect of the first swing arm and the second swing arm will not be repeated here.

[0024] In one possible embodiment, the swing arm assembly includes a first swing arm, a second swing arm and a connecting member, the door panel assembly includes a door panel, the first swing arm is rotatably connected to the second swing arm, the second swing arm is rotatably connected to the connecting member, one end of the connecting member is connected to the door panel, and the other end of the door panel is connected to the connecting member, one of which is provided with a third arc-shaped sliding portion and a fourth arc-shaped sliding fitting portion, and the other is provided with a third arc-shaped sliding fitting portion and a fourth arc-shaped sliding portion.

[0025] In a second aspect, an embodiment of the present application provides an electronic device, the electronic device comprising:

[0026] A folding device comprising a first shell, a second shell, and the hinge mechanism described in any embodiment of the first aspect; the first shell is connected to the connecting member on one side of the base, and the second shell is connected to the connecting member on the other side of the base;

[0027] A folding screen is provided on the first shell and the second shell, and the position of the foldable portion of the folding screen corresponds to the position of the rotating shaft mechanism.

[0028] It can be understood that the beneficial effects of the second aspect can be referred to the relevant description of the first aspect above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] FIG1 is a schematic structural diagram of an electronic device in an unfolded state according to some embodiments of the present application;

[0030] FIG2 is a schematic diagram of the structure of an electronic device in a folded state according to some embodiments of the present application;

[0031] FIG3 is a schematic structural diagram of an electronic device in an intermediate state according to some embodiments of the present application;

[0032] FIG4 is a schematic structural diagram of a folding device according to some embodiments of the present application;

[0033] FIG5 is an exploded schematic diagram of the rotating shaft mechanism in FIG4 ;

[0034] FIG6 is a schematic diagram of the rotating shaft mechanism in FIG4 in a folded state;

[0035] FIG7 is an exploded schematic diagram of the rotating shaft mechanism shown in FIG6 ;

[0036] FIG8 is a partial exploded view of a rotating shaft mechanism according to some embodiments of the present application;

[0037] FIG9 is a schematic diagram of a folded state of the swing arm in the rotating shaft mechanism shown in FIG8 ;

[0038] FIG10 is a schematic structural diagram of a first swing arm in some embodiments of the present application;

[0039] FIG11 is a schematic structural diagram of a second swing arm in some embodiments of the present application;

[0040] FIG12 is a schematic diagram of the coordination between the first swing arm and the second swing arm in some embodiments of the present application;

[0041] FIG13 is a schematic diagram of the structure of the swing arm assembly and the door panel assembly in some embodiments of the present application;

[0042] FIG14 is an exploded schematic diagram of the connection between the swing arm assembly and the door panel assembly in FIG13;

[0043] FIG15 is a schematic diagram of a folded state of a rotating shaft structure according to some embodiments of the present application;

[0044] FIG16 is a schematic diagram of an expanded shaft mechanism according to some embodiments of the present application;

[0045] FIG17 is a schematic structural diagram of a connecting member and a door panel in some embodiments of the present application;

[0046] FIG18 is a schematic diagram of the cooperation between the connecting member and the door panel in FIG17;

[0047] FIG19 is an exploded schematic diagram of a rotating shaft mechanism according to some embodiments of the present application;

[0048] FIG20 is a schematic diagram showing the connection between the swing arm assembly and the door panel assembly in FIG19;

[0049] FIG21 is an exploded schematic diagram of the swing arm assembly and the door panel assembly in FIG19 ;

[0050] FIG22 is a schematic diagram of the folding of the rotating shaft mechanism of FIG19.

[0051] Among them, the figure marks in the figure are: 10, first swing arm; 20, second swing arm; 30, connecting member; 40, door panel; 100, electronic device; 101, fifth arc-shaped sliding portion; 102, sixth arc-shaped sliding matching portion; 110, sliding protrusion; 120, swing arm assembly; 130, first shell; 140, second shell; 150, folding area; 200, rotating shaft mechanism; 201, fifth arc-shaped sliding matching portion; 202, sixth arc-shaped sliding portion; 203, third arc-shaped sliding portion; 204, fourth arc-shaped sliding portion; 210, base; 211, slide groove ; 300, flexible screen; 301, first circular arc-shaped sliding fitting part; 302, second circular arc-shaped sliding part; 303, third circular arc-shaped sliding part; 304, fourth circular arc-shaped sliding fitting part; 340, door panel assembly; 400, folding device; 401, third circular arc-shaped sliding fitting part; 402, fourth circular arc-shaped sliding part; 200, rotating shaft mechanism; 201, fifth circular arc-shaped sliding fitting part; 202, sixth circular arc-shaped sliding part; 203, third circular arc-shaped sliding part; 204, fourth circular arc-shaped sliding part; 210, base; 211, slide groove. DETAILED DESCRIPTION

[0052] For ease of understanding, the terms involved in the embodiments of the present application are first explained.

[0053] And / or: It is just a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0054] Multiple: refers to two or more than two.

[0055] Connection: should be understood in a broad sense. For example, A and B are connected, which can be either directly connected or indirectly connected through an intermediary.

[0056] The specific implementation of the present application will be clearly described below with reference to the accompanying drawings.

[0057] The embodiments of the present application provide a rotation mechanism and an electronic device using the rotation mechanism. The structural arrangement of the rotation mechanism is conducive to achieving the thinning of the entire device while ensuring the rotational movement of the swing arm.

[0058] The electronic device may be any foldable device that can be unfolded and closed by a user. The electronic device includes, but is not limited to, a cell phone, a notebook computer, a tablet personal computer, a laptop computer, a personal digital assistant, a wearable device, or a mobile device.

[0059] In order to make the purpose, technical solutions and advantages of this application clearer, in the embodiments of this application, the electronic device is taken as an example of a mobile phone.

[0060] Please refer to Figures 1 and 2. Figure 1 shows a structural schematic diagram of the electronic device 100 provided in some embodiments of the present application in an unfolded state, Figure 2 shows a structural schematic diagram of the electronic device 100 shown in Figure 1 in a folded state, and Figure 3 shows a schematic diagram of the electronic device 100 shown in Figure 1 in an intermediate state.

[0061] Under different usage requirements, the terminal device 100 can be unfolded to the unfolded state, folded to the folded state, or in an intermediate state between the unfolded state and the folded state. It should be understood that the intermediate state can be any state between the unfolded state and the folded state of the terminal device 100, not the only state.

[0062] The terminal device 100 includes a folding device 400 and a folding screen 300, with the folding screen 300 being mounted on the folding device 400. The folding device 400 can provide support and protection for the folding screen 300 and can be folded or unfolded. The folding screen 300 is a flexible screen that can be folded or unfolded along with the folding device 400. It is understood that the folding screen 300 can be used to display information and provide an interactive interface for the user, and can be a variety of display types.

[0063] As shown in Figure 4, the folding device 400 includes a hinge mechanism 200, a first shell 130 and a second shell 140. The hinge mechanism 200 is located between the first shell 120 and the second shell 140, and is respectively connected to the first shell 130 and the second shell 140. The first shell 130 and the second shell 140 can rotate relative to each other based on the hinge mechanism 200, so that they can rotate relatively close to each other (i.e., rotate towards each other) to put the terminal device 100 in a folded state, and can rotate relatively away from each other (i.e., rotate away from each other) to put the terminal device 100 in an unfolded state.

[0064] It is understood that there may be one or more rotating shaft mechanisms 200 . When there are multiple rotating shaft mechanisms 200 , the rotating shaft mechanisms 200 may be sequentially spaced and positioned between the first housing 130 and the second housing 140 .

[0065] Please continue to refer to Figures 1 to 4. The folding screen 300 is arranged on the first shell 130 and the second shell 140, and can be folded or unfolded as the first shell 130 and the second shell 140 rotate. The folding screen 300 has a foldable area 150. The position of the foldable area 150 corresponds to the position of the hinge mechanism 200, that is, the foldable area 150 is arranged opposite to the hinge mechanism 200. The foldable area 150 is flexible so that when the first shell 130 and the second shell 140 rotate relative to each other, the folding screen 300 can be folded by bending the foldable area 150. When the folding screen 300 is in the folded state, the foldable area 150 can be teardrop-shaped or U-shaped, but is not limited to this shape.

[0066] It is understood that the portion of the folding screen 300 corresponding to the first housing 130 can be flexible or rigid. The portion of the folding screen 300 corresponding to the second housing 140 can be flexible or rigid.

[0067] The front side of the folding screen 300 is the side facing away from the hinge mechanism 200, and is also the display surface of the folding screen 300 for displaying images. The back side of the folding screen 300 is the side facing the hinge mechanism 200, and can also be regarded as the non-display surface of the folding screen 300.

[0068] When the terminal device 100 is in the unfolded state, the folding device 400 and the folding screen 300 are also in the unfolded state. The first surface of the first housing 130 for mounting the folding screen 300 and the second surface of the second housing 140 for mounting the folding screen 300 are approximately in the same plane, i.e., the angle between the first and second surfaces is approximately 180°. In this case, the folding screen 300 is substantially flat, thereby providing the terminal device 100 with a larger display area. It should be understood that when the folding device 400 is in the unfolded state, the angle between the first and second surfaces is not necessarily 180°. The angle between the first and second surfaces can also be greater than or less than 180°, but close to 180°. For example, the angle can range from 165° to 190° (e.g., 170°, 173°, 175°, 182°, 185°, etc., but not limited thereto), and the folding screen 300 can still be unfolded.

[0069] When the terminal device 100 is in the folded state, the folding device 400 and the folding screen 300 are also in the folded state. The first surface of the first housing 130 for mounting the folding screen 300 and the second surface of the second housing 140 for mounting the folding screen 300 are arranged opposite each other and are substantially parallel, that is, the angle between the first surface and the second surface is substantially 0°. At this time, the folding screen 300 is folded relative to the foldable portion 150 and assumes the folded state, thereby facilitating storage of the terminal device 100. It should be understood that when the folding device 400 is in the folded state, the first surface and the second surface are not necessarily absolutely parallel. The angle between the two surfaces can also be greater than 0°, but close to 0°. For example, the angle can range from 0° to 15° (for example, 1°, 2°, 3°, 5°, 10°, etc., but not limited thereto), and the folding of the folding screen 300 can also be achieved.

[0070] In some embodiments, the electronic device 100 may be an inward-folding terminal device, and the folding screen 100 is an inward-folding folding screen. After the folding screen 300 is folded, the folding screen 300 is located between the first housing 130 and the second housing 140.

[0071] Of course, in some other embodiments, the terminal device 100 may also be an outward-folding terminal device, and the folding screen 300 is an outward-folding folding screen. After the folding screen 300 is folded, the display surface of the folding screen 300 is exposed, and the first housing 130 and the second housing 140 are located between the folding screen 300.

[0072] In some embodiments, at least one of the first shell 130 and the second shell 140 may be provided with an installation space for installing the electronic components of the terminal device 100. For example, the electronic components may include circuit boards, batteries, receivers, speakers, cameras, etc., but are not limited thereto. Among them, the circuit board can integrate the electronic components such as the central controller, storage unit, antenna module, power management module of the terminal device 100, and the battery can power the folding screen 300, circuit board, receiver, speaker, camera and other electronic components. The shape and structure of the first shell 130 and the second shell 140 may be the same or different, and are not limited in the embodiment of the present application. The first shell 130 and the second shell 140 may be a middle frame structure, and the specific shape and structure can be set as needed, and are not limited in the embodiment of the present application.

[0073] Below, the rotating shaft mechanism 200 provided in the embodiment of the present application will be described in detail.

[0074] To facilitate the description of the various embodiments below, an XYZ three-axis rectangular coordinate system is established. The width direction of the hinge mechanism 200 is defined as the X-axis direction, which is parallel to the direction from the first housing 130 to the second housing 140 when the terminal device 100 is in the unfolded state. The length direction of the hinge mechanism 200 is defined as the Y-axis direction, which is parallel to the direction from one end of the first housing 130 to the opposite end when the terminal device 100 is in the unfolded state. The thickness direction of the hinge mechanism 200 is defined as the Z-axis direction, which is parallel to the direction from the first housing 130 to the foldable screen 300 when the terminal device 100 is in the unfolded state, that is, parallel to the thickness direction of the terminal device 100. The X-axis direction, the Y-axis direction, and the Z-axis direction are mutually perpendicular. The X-axis direction includes the positive X-axis direction and the negative X-axis direction, and the same applies to the Y-axis direction and the Z-axis direction. It should be understood that the coordinate system of the hinge mechanism 100 can be flexibly configured according to actual needs. This application only provides an example and should not be considered as a special limitation of this application.

[0075] Figure 5 shows an exploded view of the rotating shaft mechanism in Figure 4, Figure 6 is a schematic diagram of the folded state of the rotating shaft mechanism 200 in Figure 4, Figure 7 is an exploded schematic diagram of the rotating shaft mechanism in Figure 6, and Figure 8 is a partial exploded view of the rotating shaft mechanism in some embodiments of the present application.

[0076] As shown in Figures 5 to 8, the hinge mechanism 200 includes a base 210, at least two door panel assemblies 340, and at least two swing arm assemblies 120. The swing arm assemblies 120 and the door panel assemblies 340 located on the same side of the base 210 are rotatably connected. Each door panel assembly 120 is disposed on either side of the base 210, and each swing arm assembly 120 is disposed on either side of the base 210. One end of each swing arm assembly 120 located on either side of the base 210 is rotatably connected to the base 210. The present application does not limit the manner in which the swing arm assembly 120 and the base 210 are rotatably connected; as long as the swing arm assembly 120 can rotate about the base 210, it can be used. For example, the connection interface between the swing arm assembly 120 and the base 210 can be a circular arc-shaped sliding protrusion 110 provided on one end of the swing arm assembly 340 close to the base 210, and a sliding groove 211 is provided on the base 210 to cooperate with the circular arc-shaped sliding protrusion. The sliding protrusion 110 and the sliding groove 211 cooperate to slide so that the swing arm assembly 120 and the base 210 are rotatably connected.

[0077] In some embodiments, the end of the swing arm assembly 120 proximate to the base 210 can be connected to the base 210 via various rotational connection methods, so that the swing arm assembly 120 can rotate relative to the base 210 while being connected to the base 210. The rotation axes of the swing arm assemblies 120 rotating relative to the base 10 can be arranged substantially parallel to each other, although some deviation is possible, but close to parallel, that is, manufacturing errors and assembly errors can be tolerated. The rotation axes of the swing arm assemblies 120 rotating relative to the base 210 can be substantially parallel to the length direction of the base 210.

[0078] It will be appreciated that the base 210 supports and connects the swing arm assembly 120 and can have various regular or irregular shapes, such as, but not limited to, a block structure, a frame structure, a shell structure, or a plate structure. The base 210 can be a single component or an assembly comprising multiple assembled components. In some cases, the base 210 is also referred to as a main shaft, a main body, or the like.

[0079] Figure 9 is a schematic diagram of the folded state of the swing arm in the rotating shaft mechanism shown in Figure 8; Figure 10 is a schematic diagram of the structure of the first swing arm in some embodiments of the present application; Figure 11 is a schematic diagram of the structure of the second swing arm; Figure 12 is a schematic diagram of the coordination between the first swing arm and the second swing arm.

[0080] In some embodiments, as shown in Figures 9 to 12 , the swing arm assembly 120 located on both sides of the base 210 includes a first swing arm 10 and a second swing arm 20, and the first swing arm 10 and the second swing arm 20 are rotatably connected. Among the first swing arms 10 located on both sides of the base 210, one end of the first swing arm 10 is rotatably connected to the base 210. The form of the rotatable connection between the first swing arm 10 and the base 210 is not limited herein, as long as the first swing arm 10 can rotate around the base 210, and the other end of the first swing arm 10 is connected to the second swing arm 20.

[0081] Specifically, as shown in Figure 10, in the first swing arm 10 and the second swing arm 20 located on the same side of the base 210, two fifth arc-shaped sliding parts 101 and a sixth arc-shaped sliding fitting part 102 are provided on the end of the first swing arm 10 close to the second swing arm 20. The two fifth arc-shaped sliding parts 101 are respectively located on opposite sides of the sixth arc-shaped sliding fitting part 102, and are arranged side by side with the third arc-shaped sliding fitting part 102 along the length direction of the base 210.

[0082] As shown in Figure 11, two fifth arc-shaped sliding fitting parts 201 and a sixth arc-shaped sliding part 202 are provided on the end of the second swing arm 20 close to the first swing arm 10. The two fifth arc-shaped sliding fitting parts 201 are respectively located on the opposite sides of the sixth arc-shaped sliding part 202, and are arranged side by side with the sixth arc-shaped sliding part 202 along the length direction of the base 210.

[0083] The arcuate surfaces of the two fifth arcuate sliding portions 101 on the first swing arm 10 overlap the inner wall surfaces of the two arcuate sliding fitting portions 201 on the second swing arm 20, so that the two fifth arcuate sliding portions 101 on the first swing arm 10 slide and fit with the two fifth arcuate sliding fitting portions 201 on the second swing arm 20. The arcuate surface of the sixth arcuate sliding portion 202 on the second swing arm 20 overlaps the inner wall surface of the third arcuate sliding fitting portion 102 on the first swing arm 10, so that the third arcuate sliding fitting portion 102 on the first swing arm 10 slides and fits with the third arcuate sliding portion 202 on the second swing arm 20.

[0084] It can be understood that the two fifth arc-shaped sliding fitting parts 201 can allow the two fifth arc-shaped sliding parts 101 to slide thereon, and the sixth arc-shaped sliding fitting part 202 can allow the sixth arc-shaped sliding part 102 to slide thereon, through the sliding fit between the two fifth arc-shaped sliding parts 101 and the two fifth arc-shaped sliding fitting parts 201 and the sliding fit between the sixth arc-shaped sliding part 202 and the sixth arc-shaped sliding fitting part 102, so that the first swing arm 10 and the second swing arm 20 are rotatably connected.

[0085] By arranging two fifth arc-shaped sliding parts 101 and one sixth arc-shaped sliding fitting part 102 on the first swing arm 10 and arranging two fifth arc-shaped sliding fitting parts 201 and a sixth arc-shaped sliding part 202 on the second swing arm 20, the sliding trajectories of the first swing arm 10 and the second swing arm 20 can be jointly defined by the fifth arc-shaped sliding fitting part 201 and the sixth arc-shaped sliding fitting part 102. On the one hand, the sliding trajectories of the first swing arm 10 and the second swing arm 20 are jointly defined by the two fifth arc-shaped sliding fitting parts 201 and the sixth arc-shaped sliding fitting part 102, which can reduce the precision requirements for the fifth arc-shaped sliding fitting part 201 and the sixth arc-shaped sliding fitting part 102, thereby reducing the processing difficulty and processing cost of the swing arm. On the other hand, the sliding trajectory of the first swing arm 10 and the second swing arm 20 is jointly defined by the two fifth arc-shaped sliding fitting parts 201 and the sixth arc-shaped sliding fitting parts 102, so that the fifth arc-shaped sliding fitting parts 201 and the sixth arc-shaped sliding fitting parts 102 can be distributedly arranged. The distributed arrangement of multiple arc-shaped sliding fitting parts can increase the overlap amount between the first swing arm 10 and the second swing arm 20, increase the connection strength between the first swing arm 10 and the second swing arm 20, and make the first swing arm 10 and the second swing arm 20 not easy to fall out when sliding relative to each other, and have good reliability.

[0086] It is understood that the first swing arms 10 are disposed on both sides of the base 210, but the number of first swing arm assemblies on each side may be one or more, the number of first swing arms 10 on each side may be one or more, and the number of first swing arms 10 on both sides of the base 210 may be the same or different. The second swing arms 20 are disposed on both sides of the base 210, which means that the second swing arms 20 are disposed on both sides of the base 210, but the number of second swing arms 20 on each side may be one or more, and the number of second swing arms 20 on both sides of the base 210 may be the same or different.

[0087] It should be understood that the two sides of the base 210 refer to the two sides with the central longitudinal section of the base 210 as the dividing line, and the central longitudinal section is a plane parallel to the length direction (i.e., the Y-axis direction) and thickness direction (i.e., the Z-axis direction) of the base 210 and bisecting the base 10 along the width direction (i.e., the X-axis direction) of the base 210. By analogy, the two sides of a component appearing in the following text refer to the two sides with the central longitudinal section of the component as the dividing line. Optionally, the first swing arms 10 on both sides of the base 210 can be arranged relative to each other, that is, they are approximately at the same position in the length direction of the base 210. Optionally, the second swing arms 20 on both sides of the base 210 can be arranged relative to each other, that is, they are approximately at the same position in the length direction of the base 210. Figures 6 and 7 exemplify this situation. Of course, in some other embodiments, the first swing arms on both sides of the base 210 may not be arranged relative to each other, that is, they are staggered along the length direction of the base 210, and the second swing arms on both sides of the base 210 may not be arranged relative to each other, that is, they are staggered along the length direction of the base 210. The first swing arm 10 and the second swing arm 20 located on the same side of the base 210 are in a rotationally connected state.

[0088] Because the first swing arm 10 and the second swing arm 20 located on the same side of the base 210 are rotatably connected by the sliding fit between the fifth arcuate sliding portion 101 and the fifth arcuate sliding fitting portion 201, and the sixth arcuate sliding portion 202 and the sixth arcuate sliding fitting portion 120, the fifth arcuate sliding portion 101 and the fifth arcuate sliding fitting portion 201 slide relative to each other along an arcuate trajectory to achieve relative rotation, and the sixth arcuate sliding portion 202 and the sixth arcuate sliding fitting portion 102 slide relative to each other along an arcuate trajectory to achieve relative rotation. Both the fifth arcuate sliding portion 101 and the fifth arcuate sliding fitting portion 201 are arcuate structures. The fifth arcuate sliding portion 101 is a raised structure having an arcuate surface, and the fifth arcuate sliding fitting portion 201 is a groove having an arcuate surface that slides with the raised structure. Similarly, the sixth arc-shaped sliding portion 202 and the sixth arc-shaped sliding matching portion are also arc-shaped structures. The specific structures are not described here. It is sufficient as long as the two can contact and match with each other in relative sliding along the arc-shaped trajectory.

[0089] The two fifth arc-shaped sliding portions 101 and the first swing arm 10 can be integrally formed as a one-piece structure, or they can be formed separately and fixedly connected. The sixth arc-shaped sliding mating portion 102 and the first swing arm 10 can be integrally formed as a one-piece structure, or they can be formed separately and fixedly connected. Similarly, the two fifth arc-shaped sliding mating portions 201 and the second swing arm 20 can be integrally formed as a one-piece structure, or they can be formed separately and fixedly connected. The sixth arc-shaped sliding portion 202 and the second swing arm 20 can be integrally formed as a one-piece structure, or they can be formed separately and fixedly connected.

[0090] The first swing arm 10 and the second swing arm 20 located on either side of the base 210 can rotate relative to each other based on the base 210, so that the hinge mechanism 200 can switch between the deployed state and the folded state. When the hinge mechanism 200 is applied to the electronic device 100, as the electronic device 100 switches between the deployed state and the folded state, the hinge mechanism 200 also switches between the deployed state and the folded state synchronously.

[0091] Please refer to Figure 9. When the hinge mechanism 200 rotates from the folded state to the unfolded state, the second swing arms 20 located on both sides of the base 210 rotate away from each other, and the second swing arms 20 located on both sides of the base 210 drive the first swing arm 10 to rotate relative to the base 210. The first swing arms 10 located on both sides of the base 210 also rotate away from each other. At the same time, the two fifth arc-shaped sliding portions 101 slide in the arc-shaped sliding grooves formed by the two fifth arc-shaped sliding matching portions 201, and the sixth arc-shaped sliding portion 202 slides in the groove formed by the sixth arc-shaped sliding matching portion 102, so that the first swing arm 10 and the second swing arm 20 rotate relative to each other, and the assembly formed by the first swing arm 10 and the second swing arm 20 rotates away from the base 210.

[0092] According to the above description, the hinge mechanism 200 provided in the embodiment of the present application is rotationally connected to the first swing arm 10 and the second swing arm 20 by means of the sliding fit between the two fifth arc-shaped sliding portions 101 and the two fifth arc-shaped sliding fitting portions 201, and the sliding fit between the sixth arc-shaped sliding portion 202 and the sixth arc-shaped sliding fitting portion 102. Therefore, the first swing arm 10 and the second swing arm 20 are rotationally connected via a virtual axis. When the hinge mechanism 200 is converted between the deployed state and the folded state, the angle at which the first swing arm 10 rotates relative to the base 210 and the angle at which the second swing arm 20 rotates relative to the base 210 may be different. Therefore, when the hinge mechanism 200 is applied to the terminal device 100, the angle at which the first swing arm 10 rotates relative to the base 210 during the process of the terminal device 100 rotating from the deployed state to the folded state can be designed as needed, and does not need to be the same as the angle at which the second swing arm 20 rotates relative to the base 210. The possibility of interference between the first swing arm and the folding screen of the terminal device when the terminal device is in the folded state can be reduced, which is conducive to further miniaturization of the size of the hinge mechanism, thereby facilitating a lightweight and thin design of the terminal device.

[0093] In some embodiments, referring to Figures 10 to 12, one of the two fifth arc-shaped sliding portions 101 and the two fifth arc-shaped sliding fitting portions 201 is an arc-shaped protrusion, and the other is an arc-shaped sliding groove that cooperates with the arc-shaped protrusion, and one of the third arc-shaped sliding portion 202 and the third arc-shaped sliding fitting portion 102 is an arc-shaped protrusion, and the other is a sliding groove that cooperates with the arc-shaped protrusion. Figures 10 to 12 exemplarily show the situation where the two fifth arc-shaped sliding parts 101 are arc-shaped protrusions, the sixth arc-shaped sliding part 202 is an arc-shaped protrusion, the two fifth arc-shaped sliding fitting parts 201 are arc-shaped grooves, and the sixth arc-shaped sliding fitting part 102 is an arc-shaped groove. Of course, the two can also be swapped, that is, the two fifth arc-shaped sliding parts 101 are arc-shaped grooves, the sixth sliding part 202 is an arc-shaped groove, the two fifth arc-shaped sliding fitting parts 201 are arc-shaped protrusions, and the sixth arc-shaped sliding fitting part 102 is an arc-shaped protrusion. The two fifth arc-shaped sliding parts 101 of the first swing arm 10 are in surface contact with the two fifth arc-shaped sliding fitting parts 201 of the second swing arm 20, and the third arc-shaped sliding fitting part 102 of the first swing arm 10 is in surface contact with the third arc-shaped sliding part 202 of the second swing arm 20. The arc-shaped protrusion can slide along the arc-shaped slide groove inside the arc-shaped slide groove and contact the groove wall surface of the arc-shaped slide groove.

[0094] It can be understood that the arc-shaped protrusion and the arc-shaped groove are in sliding cooperation, and the two are in surface contact. Compared with point contact and line contact, this is beneficial to improving the stability and reliability of the relative sliding cooperation between the fifth arc-shaped sliding part 101 and the fifth arc-shaped sliding cooperation part 201 and the relative sliding cooperation between the sixth arc-shaped sliding part 102 and the sixth arc-shaped sliding cooperation part 202, thereby improving the stability of the rotational cooperation between the first swing arm 10 and the second swing arm 20.

[0095] Optionally, the two fifth arc-shaped sliding portions 101 are arc-shaped protrusions, the two fifth arc-shaped sliding mating portions 201 are arc-shaped grooves, the sixth arc-shaped sliding portion 202 is an arc-shaped protrusion, and the sixth arc-shaped sliding mating portion 102 is an arc-shaped groove. The arc-shaped groove forms an opening on the upper surface of the swing arm, and the arc-shaped protrusion slides on the arc-shaped groove, which helps to reduce the overall thickness of the first swing arm 10 and the second swing arm 20 formed by the superposition and mating. The upper surface of the second swing arm 20 refers to the side surface of the second swing arm 20 facing the folding screen 300.

[0096] It should be noted that the cooperation between the two fifth arc-shaped sliding parts 101 and the two fifth arc-shaped sliding fittings 201 and the cooperation between the sixth arc-shaped sliding part 202 and the sixth arc-shaped sliding fitting part 102 is not limited to the cooperation between the arc-shaped protrusion and the arc-shaped sliding groove.

[0097] Alternatively, in other embodiments, one of the two fifth arcuate sliding portions 101 and the two fifth arcuate sliding mating portions 201 may be an arcuate groove, and the other may include multiple sub-sliding portions. One of the sixth arcuate sliding portion 202 and the sixth arcuate sliding mating portion 102 may be an arcuate groove, and the other may include multiple sub-sliding portions, wherein the sub-sliding portions are protrusions that mate with the arcuate groove, but the present invention is not limited thereto. Each sub-sliding portion is slidably disposed within the arcuate groove, and the sub-sliding portions may be in point contact, line contact, or surface contact with the groove wall of the arcuate groove, thereby also enabling the fifth arcuate sliding portion 101 and the fifth arcuate sliding mating portion 201 to slide relative to each other along an arcuate trajectory.

[0098] The first swing arm 10 and the second swing arm 20 can be various types of swing arms, for example, they can be synchronous swing arms or main swing arms.

[0099] Please continue to refer to Figures 13 to 15. Figure 13 is a structural schematic diagram of the cooperation between the swing arm assembly and the door panel assembly in some embodiments of the present application; Figure 14 is an exploded schematic diagram of the connection between the swing arm assembly and the door panel assembly in Figure 13; and Figure 15 is a structural schematic diagram of the rotating shaft in some embodiments of the present application.

[0100] In some embodiments, the door panel assembly 340 is respectively disposed on both sides of the base 210 , wherein one end of the door panel assembly 340 located on one side of the base 210 is rotatably connected to the swing arm assembly 120 .

[0101] Specifically, in some embodiments, as shown in Figure 13, each door panel assembly 340 located on both sides of the base 210 includes a connecting member 30, and each connecting member 30 is respectively arranged on both sides of the base 210. In the swing arm assembly 120 and the connecting member 30 located on the same side of the base 210, the swing arm assembly 120 is rotatably connected to the connecting member 30.

[0102] As shown in FIG14 , in the swing arm assembly 120 and the connecting member 30 located on the same side of the base 210, the swing arm assembly 120 is provided with two first arc-shaped sliding portions 203 and a second arc-shaped sliding fitting portion 204 at one end thereof, which is close to the connecting member 30. The two first arc-shaped sliding portions 203 are located on opposite sides of the second arc-shaped sliding fitting portion 204 and are arranged side by side with the second arc-shaped sliding fitting portion 204 along the length of the base 210.

[0103] Two first arc-shaped sliding fitting parts 301 and a second arc-shaped sliding part 302 are provided on one side of the connecting member 30 close to the swing arm assembly 120. The two first arc-shaped sliding fitting parts 301 are respectively located on opposite sides of the second arc-shaped sliding part 204, and on opposite sides of the second arc-shaped sliding part 302, and are arranged side by side along the length direction of the connecting member.

[0104] The arcuate surfaces of the two first arcuate sliding portions 203 on the swing arm assembly 120 overlap the inner wall surfaces of the two first arcuate sliding fitting portions 301 on the connecting member 30, so that the two arcuate sliding portions 203 on the swing arm assembly 120 slide and fit with the two arcuate sliding fitting portions 301 on the connecting member 30. The second arcuate sliding portion 302 on the connecting member 30 overlaps the inner wall surface of the second arcuate sliding fitting portion 204 on the swing arm assembly 120, so that the second arcuate sliding fitting portion 204 on the swing arm assembly 120 slides and fits with the second arcuate sliding portion 302 on the connecting member 30.

[0105] It can be understood that the two first arc-shaped sliding fitting parts 301 can allow the two first arc-shaped sliding parts 203 to slide thereon, and the second arc-shaped sliding fitting part 204 can allow the second arc-shaped sliding part 302 to slide, and the swing arm assembly 120 is rotatably connected to the connecting part 30 through the sliding fit between the two first arc-shaped sliding parts 203 and the two first arc-shaped sliding fitting parts 301 and the sliding fit between one first arc-shaped sliding part 302 and one first arc-shaped sliding fitting part 204.

[0106] By arranging two first arc-shaped sliding parts 203 and a second arc-shaped sliding fitting part 204 on the swing arm assembly 120 and arranging two first arc-shaped sliding fitting parts 301 and a second arc-shaped sliding part 302 on the connecting member 30, the sliding trajectory of the swing arm assembly 120 and the connecting member 30 can be jointly defined by the first arc-shaped sliding part 203 and the first arc-shaped sliding fitting part 301 and the second arc-shaped sliding part 302 and the second arc-shaped sliding fitting part 204. On the one hand, the sliding trajectory of the swing arm assembly 120 and the connecting member 30 is jointly defined by the two first arc-shaped sliding fitting parts 301 and the second arc-shaped sliding fitting part 204, which can reduce the precision requirements for the first arc-shaped sliding fitting part 301 and the second arc-shaped sliding fitting part 204, thereby reducing the processing difficulty and processing cost of the connecting member and the swing arm. On the other hand, the sliding trajectory of the swing arm assembly 120 and the connecting member 30 is jointly defined by two first arc-shaped sliding fitting parts 301 and one second arc-shaped sliding fitting part 204, so that the first arc-shaped sliding fitting part 301 and the second arc-shaped sliding part 301 and the first arc-shaped sliding part 203 and the second arc-shaped sliding fitting part 204 are distributedly arranged. The distributed arrangement of multiple arc-shaped sliding fitting parts and arc-shaped sliding parts can increase the overlap amount between the swing arm assembly 120 and the connecting member 30, increase the connection strength between the swing arm assembly 120 and the connecting member 30, and make the swing arm assembly 20 and the connecting member 30 not easy to fall off when sliding relative to each other, and have good reliability.

[0107] It is understood that the connection members 30 are disposed on both sides of the base 210, meaning that the base 210 is provided with connection members 30 on both sides. However, the number of connection members 30 on each side may be one or more, and the number of connection members 30 on both sides of the base 210 may be the same or different. Optionally, the connection members 30 on both sides of the base 210 may be disposed relative to each other, that is, approximately at the same position along the length of the base 210. FIG13 exemplifies this situation. Of course, in other embodiments, the connection members 30 on both sides of the base 210 may not be disposed relative to each other, that is, staggered along the length of the base 210.

[0108] It can be understood that the swing arm assembly 120 and the connecting member 30 located on the same side of the base 210 are rotatably connected by the sliding engagement of the two first arcuate sliding portions 203 with the two first arcuate sliding mating portions 301, and the sliding engagement of the second arcuate sliding portion 302 with the second arcuate sliding mating portion 204. Therefore, the two first arcuate sliding portions 203 and the two first arcuate sliding mating portions 301 slide relative to each other along an arcuate trajectory to achieve relative rotation, while the second arcuate sliding portion 302 and the second arcuate sliding mating portion 204 slide relative to each other along an arcuate trajectory to achieve relative rotation. The two first arcuate sliding portions 203 and the two first arcuate sliding mating portions 301 are both arcuate structures, and the second arcuate sliding portion 302 and the second arcuate sliding mating portion 204 are both arcuate structures. Various arcuate structures are acceptable, as long as they can engage and slide relative to each other along an arcuate trajectory. Reference can be made to the above-described embodiments for possible structures. The two first arc-shaped sliding parts 203 and the second arc-shaped sliding fitting parts 204 can be an integral structure formed as one piece with the swing arm assembly 120, or they can be formed separately and fixedly connected; similarly, the two first arc-shaped sliding fitting parts 302 and the second arc-shaped sliding parts 302 can be an integral structure formed as one piece with the connecting member 30, or they can be formed separately and fixedly connected.

[0109] The connectors 30 on either side of the base 210 can rotate relative to the base 210 to transition the hinge mechanism 200 between the deployed and folded states. When the hinge mechanism 200 transitions from the deployed state to the folded state, the connectors 30 on either side of the base 210 rotate relative to each other, driving the swing arm assembly 120 to rotate relative to the base 210. The swing arm assembly 120 on either side of the base 210 also rotates relative to each other. Simultaneously, the first arc-shaped sliding portion 203 slides relative to the first arc-shaped sliding engagement portion 301, causing the connector 30 and the swing arm assembly 120 to rotate relative to each other.

[0110] When the hinge mechanism 200 is converted from the folded state to the unfolded state, the connecting parts 30 located on both sides of the base 210 rotate relatively away from each other, and the connecting parts 30 drive the swing arm assembly 120 to rotate relative to the base 210. The swing arm assembly 120 located on both sides of the base 210 also rotate relatively away from each other. At the same time, the first arc-shaped sliding portion 203 and the first arc sliding matching portion 301 slide relative to each other to make the connecting part 30 and the swing arm assembly 120 rotate relative to each other. The connecting part 30 moves roughly toward the base 210 and close to the swing arm assembly 120, which can be regarded as a shortening of the length of the assembly formed by the connecting part 30 and the swing arm assembly 120.

[0111] Please continue to refer to Figure 14. One of the first arc-shaped sliding portion 203 and the first arc-shaped sliding matching portion 301 is an arc-shaped protrusion, and the other is an arc-shaped sliding groove that slides with the arc-shaped protrusion; one of the second arc-shaped sliding portion 302 and the second arc-shaped sliding matching portion 204 is an arc-shaped protrusion, and the other is an arc-shaped sliding groove that slides with the arc-shaped protrusion. Figure 14 exemplarily shows that the first arc-shaped sliding portion 203 is In the case of an arcuate protrusion, the first arcuate sliding fitting portion 301 is an arcuate groove, the second arcuate sliding portion 302 is an arcuate protrusion, and the second arcuate sliding fitting portion 204 is an arcuate groove, the two can of course be interchanged, that is, the first arcuate sliding portion 203 is an arcuate groove, the first arcuate sliding fitting portion 301 is an arcuate protrusion, the second arcuate sliding portion 302 is an arcuate groove, and the second arcuate sliding fitting portion 204 is a slide rail. The two first arcuate sliding portions 203 are in surface contact with the two first arcuate sliding fitting portions 301, and the second arcuate sliding portion 302 is in surface contact with the second arcuate sliding fitting portion 204. The arcuate slide rail can slide along the groove wall of the arcuate groove and contact the groove wall of the arcuate groove.

[0112] It is understandable that the arc-shaped slide rail can be an arc-shaped protrusion in various structural forms, but is not limited thereto, as long as it can slide with the arc-shaped slide groove along the arc-shaped track.

[0113] Such a setting, since the arc-shaped protrusion and the arc-shaped groove are slidingly matched and the two are in surface contact, is beneficial to improving the stability and reliability of the relative sliding between the first arc-shaped sliding part 203 and the first arc-shaped sliding matching part 301 and the relative sliding between the second arc-shaped sliding part 302 and the second arc-shaped sliding matching part 204 compared to point contact and line contact, thereby improving the stability of the rotational matching between the swing arm assembly 120 and the connecting member 30.

[0114] Optionally, referring to Figure 14, the two first arc-shaped sliding fitting parts 301 and the second arc-shaped sliding fitting parts 204 are arc-shaped grooves, which can form an opening at one end of the swing arm assembly 120 and one side of the connecting member 30 to avoid the swing arm assembly 20 through the opening, thereby reducing the overall thickness dimension formed by the overlapping fitting of the swing arm assembly 120 and the connecting member 30.

[0115] Optionally, in some other embodiments, the two first arc-shaped sliding parts 203 and the two first arc-shaped sliding fitting parts 301 can both be arc-shaped protrusions or arc-shaped slide rails, the second arc-shaped sliding part 302 and the second arc-shaped sliding fitting part 204 can both be arc-shaped protrusions or arc-shaped slide rails, the outer walls of the arc-shaped sliding parts and the arc-shaped sliding fitting parts include arc-shaped surfaces, the arc-shaped surfaces of the two first arc-shaped sliding parts 203 are slidably fitted with the arc-shaped surfaces of the two first arc-shaped sliding fitting parts 301 and are in surface contact, and the two can also slide along the arc-shaped trajectory to enable the swing arm assembly 120 to be rotatably connected to the connecting member 30.

[0116] Alternatively, in other embodiments, one of the first arcuate sliding portion 203 and the first arcuate sliding fitting portion 301 may be an arcuate groove, and the other may include multiple sub-sliding portions; one of the second arcuate sliding portion 302 and the second arcuate sliding fitting portion 204 may be an arcuate groove, and the other may also include multiple sub-sliding portions. Each sub-sliding portion is slidably disposed within the arcuate groove, and the sub-sliding portion and the groove wall of the arcuate groove may be in point contact, line contact, or surface contact, thereby also enabling the first arcuate sliding portion 203 and the first arcuate sliding fitting portion 301 to slide relative to each other along an arcuate trajectory, and the second arcuate sliding portion 302 and the second arcuate sliding fitting portion 204 to slide relative to each other along an arcuate trajectory.

[0117] Please continue to refer to Figures 16 to 18. Figure 16 is a schematic diagram of the unfolded shaft structure of some embodiments of the present application; Figure 17 is a schematic diagram of the structure of the connecting member and the door panel; and Figure 18 is a schematic diagram of the coordination between the connecting member and the door panel.

[0118] Specifically, in some embodiments, the door panel assembly 340 includes a connector 30 and a door panel 40. Specifically, as shown in Figure 16, the door panel assembly 340 includes a connector 30 and a door panel 40, wherein the connector 30 located on the same side of the base 210 is rotatably connected to the door panel 40, and each door panel 40 is respectively arranged on both sides of the base 210. Among the connectors 30 and door panels 40 located on the same side of the base 210, a third arc-shaped sliding portion 303 and a fourth arc-shaped sliding fitting portion 304 are provided on the side of the connector 30 close to the door panel 40, and the third arc-shaped sliding portion 303 and the fourth arc-shaped sliding fitting portion 304 are arranged side by side along the length direction of the connector.

[0119] A third arcuate sliding fitting portion 401 and a fourth arcuate sliding portion 402 are provided on one side of the door panel 40 close to the connecting member 30 . The third arcuate sliding fitting portion 401 and the fourth arcuate sliding portion 402 are arranged side by side along the length direction of the door panel 40 .

[0120] The third arcuate sliding portion 303 on the connecting member 30 is disposed within the third arcuate sliding fitting portion 401 on the door panel 40, so that the third arcuate sliding portion 303 on the connecting member 30 and the third sliding fitting portion 401 on the door panel 40 are slidably engaged. The fourth arcuate sliding portion 402 on the door panel 40 is disposed within the fourth sliding fitting portion 304 on the connecting member 30, so that the fourth arcuate sliding portion 402 and the fourth arcuate sliding fitting portion 304 are slidably engaged.

[0121] It can be understood that the third arc-shaped sliding fitting part 401 can allow the third arc-shaped sliding part 303 to slide on it, and the fourth arc-shaped sliding fitting part 304 can allow the fourth arc-shaped sliding part 402 to slide on it. By arranging the third sliding part 303 and the fourth sliding fitting part 304 on the connecting member 30 and arranging the third sliding fitting part 401 and the fourth sliding part 402 on the door panel 40 to jointly define the sliding trajectory of the connecting member 30 and the door panel 40, the requirements for the connection accuracy between the connecting member 30 and the door panel 40 can be reduced, thereby reducing the processing difficulty and processing cost of the connecting member and the door panel. On the other hand, the third arc-shaped sliding part 303 and the third sliding matching part 401 and the fourth sliding part 402 and the fourth sliding matching part 304 are distributedly arranged. The multiple arc-shaped sliding parts and arc-shaped sliding matching parts arranged separately can increase the overlap between the connecting part 30 and the door panel 40, increase the connection strength between the connecting part 30 and the door panel, and make the connecting part 30 and the door panel 40 not easy to fall off during relative rotation, and have good reliability.

[0122] It can be understood that the third arcuate sliding portion 303 and the third arcuate sliding mating portion 401 slide relative to each other along an arcuate trajectory to achieve relative rotation, and the fourth arcuate sliding portion 402 and the fourth arcuate sliding mating portion slide relative to each other along an arcuate trajectory to achieve relative rotation. The third arcuate sliding portion 303 and the third arcuate sliding mating portion 401 are both arcuate structures, and the fourth arcuate sliding portion 402 and the fourth arcuate sliding mating portion 304 are both arcuate structures. Various arcuate structures may be used as long as they can slide relative to each other along an arcuate trajectory. The third arcuate sliding portion 303 and the fourth arcuate sliding mating portion 304 can be integrally formed with the connector 30 or separately formed and fixedly connected. Similarly, the third arcuate sliding mating portion 401 and the fourth arcuate sliding portion 402 can be integrally formed with the door panel 40 or separately formed and fixedly connected.

[0123] Optionally, one of the third arcuate sliding portion 303 and the third arcuate sliding fitting portion 401 is a circular arcuate protrusion, and the other is a circular arcuate groove that slides with the arcuate protrusion; one of the fourth arcuate sliding portion 402 and the fourth arcuate sliding fitting portion 304 is a circular arcuate protrusion, and the other is a circular arcuate groove that slides with the arcuate protrusion. Figures 17 and 18 illustrate, by way of example, the third arcuate sliding portion 303 and the fourth arcuate sliding portion 402 are arcuate protrusions, and the third arcuate sliding fitting portion 401 and the fourth arcuate sliding fitting portion 304 are arcuate grooves. Of course, the two can also be reversed, that is, the third arcuate sliding portion 303 and the fourth arcuate sliding portion 402 are arcuate grooves, and the third arcuate sliding fitting portion 401 and the fourth arcuate sliding fitting portion 304 are arcuate protrusions. The third arc-shaped sliding portion 303 is in surface contact with the third arc-shaped sliding fitting portion 401, and the fourth arc-shaped sliding portion 402 and the fourth arc-shaped sliding fitting portion 304 are arc-shaped slide rails, which can slide along the groove wall of the arc-shaped groove inside the arc-shaped groove and contact the groove wall surface of the arc-shaped groove.

[0124] With such a configuration, since the arc-shaped slide rail and the arc-shaped slide groove are slidably matched and the two are in surface contact, compared with point contact and line contact, it is beneficial to improve the stability and reliability of the relative sliding between the third arc-shaped sliding part 303 and the third arc-shaped sliding matching part 401 and the fourth arc-shaped sliding part 402 and the fourth arc-shaped sliding matching part 304, thereby improving the stability of the rotational matching between the connecting member 30 and the door panel 40.

[0125] Optionally, the third arc-shaped sliding fitting portion 401 and the fourth arc-shaped sliding fitting portion 304 are arc-shaped slide grooves, which can form an opening on one side of the connecting member 30 and the door panel 40 to assemble the connecting member 30 and the door panel 40 through the opening, thereby reducing the overall thickness dimension formed by the overlapping fitting of the connecting member 30 and the door panel 40.

[0126] Alternatively, in other embodiments, one of the third arcuate sliding portion 303 and the third arcuate sliding fitting portion 401 may be an arcuate groove, and the other may include multiple sub-sliding portions; and one of the fourth arcuate sliding portion 402 and the fourth arcuate sliding fitting portion 304 may be an arcuate groove, and the other may include multiple sub-sliding portions. Each sub-sliding portion is slidably disposed within the arcuate groove, and the sub-sliding portion may be in point contact, line contact, or surface contact with the groove wall of the arcuate groove. Similarly, the third arcuate sliding portion 303 and the third arcuate sliding fitting portion 401 can slide relative to each other along an arcuate trajectory, and the fourth arcuate sliding portion 402 and the fourth arcuate sliding fitting portion 304 can slide relative to each other along an arcuate trajectory.

[0127] In some embodiments, the swing arm assembly 120 may further include a first swing arm 10, a second swing arm 20, and a connector 30, and the door panel assembly 340 may include a door panel 40. The connection between the swing arm assembly 120 and the door panel assembly 340, i.e., the connection between the connector 30 and the door panel 40, may be understood with reference to the connection between the connector 30 and the door panel 40 in the above-described embodiments.

[0128] Continuing to refer to Figures 19 to 22, Figure 19 is an exploded schematic diagram of the rotating shaft of some embodiments of the present application; Figure 20 is a connection schematic diagram of the swing arm assembly and the door panel assembly; Figure 21 is an exploded schematic diagram of the swing arm assembly and the door panel assembly; Figure 22 is a folded schematic diagram of the rotating shaft of some embodiments of the present application.

[0129] In some embodiments, the swing arm assembly 120 in the hinge mechanism 200 may also include only one swing arm. As shown in FIG19 , the hinge mechanism 200 includes a base 210, at least two swing arm assemblies 120, and at least two door panel assemblies 340. The swing arm assembly 120 is rotatably connected to the base 210. The specific connection form is not limited. For the specific connection form, reference can be made to the connection method between the swing arm assembly and the base 210 in the above embodiment, as long as the swing arm assembly 120 and the base 210 can be rotatably connected. The swing arm assembly 120 located on the same side of the base 210 is rotatably connected to the door panel assembly 340.

[0130] Specifically, as shown in Figures 20 and 21 , in the swing arm assembly 120 and the door panel assembly 340 located on the same side of the base 210, the swing arm assembly 120 has two first arcuate sliding portions 203 and a second arcuate sliding fitting portion 204 at one end thereof, which is adjacent to the door panel assembly 340. The two first arcuate sliding portions 203 are located on opposite sides of the second arcuate sliding fitting portion 204 and are arranged side by side along the length of the base 210.

[0131] Two first arc-shaped sliding fitting parts 301 and a second arc-shaped sliding part 302 are provided on the side of the door panel assembly 340 close to the swing arm assembly 120. The two first arc-shaped sliding fitting parts 301 are respectively located on the opposite sides of the second arc-shaped sliding part 204, and on the opposite sides of the second arc-shaped sliding part 302, and are arranged side by side along the length direction of the connecting part at the second arc-shaped demarcating part 302.

[0132] The two first arcuate sliding portions 203 on the swing arm assembly 120 overlap the two first arcuate sliding fitting portions 301 on the door panel assembly 340, so that the two arcuate sliding portions 203 on the swing arm assembly 120 slide and fit with the two arcuate sliding fitting portions 301 on the door panel assembly 340. The second arcuate sliding portion 302 on the door panel assembly 340 is placed in the second arcuate sliding fitting portion 204 on the swing arm assembly 120, so that the second arcuate sliding fitting portion 204 on the swing arm assembly 120 slide and fit with the second arcuate sliding portion 302 on the door panel assembly 340.

[0133] It can be understood that the two first arc-shaped sliding fitting parts 301 can allow the two first arc-shaped sliding parts 203 to slide thereon, and the second arc-shaped sliding fitting part 204 can allow the second arc-shaped sliding part 302 to slide, through the sliding fit between the two first arc-shaped sliding parts 203 and the two second arc-shaped sliding fitting parts 301 and the sliding fit between one second arc-shaped sliding part 302 and one second arc-shaped sliding fitting part 204, so that the swing arm assembly 10 and the door panel assembly 340 are rotatably connected.

[0134] By arranging two first arc-shaped sliding parts 203 and a second arc-shaped sliding fitting part 204 on the swing arm assembly 120 and arranging two first arc-shaped sliding fitting parts 301 and a second arc-shaped sliding part 302 on the door panel assembly 340, the sliding trajectory of the swing arm assembly 120 and the door panel assembly 340 can be jointly defined by the first arc-shaped sliding part 203 and the first arc-shaped sliding fitting part 301 and the second arc-shaped sliding part 302 and the second arc-shaped sliding fitting part 204. On the one hand, the sliding trajectory of the first swing arm 120 and the door panel assembly 340 is jointly defined by two first arc-shaped sliding fitting parts 301 and one second arc-shaped sliding fitting part 204, which can reduce the precision requirements for the first arc-shaped sliding fitting part 301 and the second arc-shaped sliding fitting part 204, thereby reducing the processing difficulty and processing cost of the door panel assembly 340 and the swing arm assembly 120. On the other hand, the sliding trajectory of the swing arm assembly 120 and the door panel assembly 340 is jointly defined by two first arc-shaped sliding fitting parts 301 and one second arc-shaped sliding fitting part 204, so that the first arc-shaped sliding fitting part 301 and the second arc-shaped sliding part 301 and the first arc-shaped sliding part 203 and the second arc-shaped sliding fitting part 204 are distributedly arranged. The distributed arrangement of multiple arc-shaped sliding fitting parts and arc-shaped sliding parts can increase the overlap amount between the swing arm assembly 120 and the door panel assembly 340, increase the connection strength between the first swing arm assembly 120 and the door panel assembly 340, and make the swing arm assembly 120 and the door panel assembly 340 not easy to fall off when sliding relative to each other, and have good reliability.

[0135] The above is a detailed introduction to the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A rotating shaft mechanism, characterized in that: The rotating shaft mechanism comprises: Base; At least two swing arm assemblies are respectively arranged on two sides of the base, and the swing arm assemblies are rotatably connected to the base; At least two door panel assemblies are respectively arranged on two sides of the base; In the swing arm assembly and the door panel assembly located on the same side of the base, one end of the door panel assembly is connected to the end of the swing arm assembly away from the base; one end of the door panel assembly connected to the swing arm assembly and one end of the swing arm assembly connected to the door panel assembly are provided with a first arc-shaped sliding portion and a second arc-shaped sliding matching portion, and the other end is provided with a first arc-shaped sliding matching portion and a second arc-shaped sliding portion; The first arc-shaped sliding portion is slidably matched with the first arc-shaped sliding matching portion, and the second arc-shaped sliding portion is slidably matched with the second arc-shaped sliding matching portion, so that the swing arm assembly is rotatably connected to the door panel assembly.

2. The rotating shaft mechanism according to claim 1, characterized in that: The door panel assembly comprises a connecting piece and a door panel; One end of the connecting member connected to the swing arm assembly and one end of the swing arm assembly connected to the connecting member are provided with the first arc-shaped sliding portion and the second arc-shaped sliding fitting portion, and the other end is provided with the first arc-shaped sliding fitting portion and the second arc-shaped sliding portion; One end of the connecting member away from the swing arm assembly is rotatably connected to the door panel.

3. The rotating shaft mechanism according to claim 2, characterized in that: One end of the connecting member connected to the door panel and one end of the door panel connected to the connecting member are provided with a third arc-shaped sliding portion and a fourth arc-shaped sliding matching portion, and the other end is provided with a third arc-shaped sliding matching portion and a fourth arc-shaped sliding portion; The third arc-shaped sliding portion is slidably matched with the fourth arc-shaped sliding matching portion, and the third arc-shaped sliding matching portion is slidably matched with the fourth arc-shaped sliding portion, so that the connecting member is rotatably connected to the door panel.

4. The rotating shaft mechanism according to claim 1, characterized in that: The swing arm assembly includes a connecting piece, and the door panel assembly includes a door panel; One end of the connecting member connected to the door panel and one end of the door panel connected to the connecting member are provided with a third arc-shaped sliding portion and a fourth arc-shaped sliding matching portion, and the other end is provided with a third arc-shaped sliding matching portion and a fourth arc-shaped sliding portion; The third arc-shaped sliding portion is slidably matched with the fourth arc-shaped sliding matching portion, and the third arc-shaped sliding matching portion is slidably matched with the fourth arc-shaped sliding portion, so that the connecting member is rotatably connected to the door panel.

5. The rotating shaft mechanism according to claim 3 or 4, characterized in that: One of the third arc-shaped sliding portion and the third arc-shaped sliding matching portion is an arc-shaped sliding groove, and the other has an arc-shaped protrusion that slides with the arc-shaped sliding groove; One of the fourth arc-shaped sliding portion and the fourth arc-shaped sliding matching portion is an arc-shaped sliding groove, and the other has an arc-shaped protrusion that slides and matches with the arc-shaped sliding groove.

6. The rotating shaft mechanism according to any one of claims 3 to 5, characterized in that: The third arc-shaped sliding portion and the fourth arc-shaped sliding fitting portion are an integral structure with the connecting member, and / or the third arc-shaped sliding fitting portion and the fourth arc-shaped sliding portion are an integral structure formed integrally with the door panel.

7. The rotating shaft mechanism according to any one of claims 3 to 6, characterized in that: One end of the connecting member connected to the door panel and one end of the door panel connected to the connecting member are provided with at least two third arc-shaped sliding parts and at least one fourth arc-shaped sliding fitting part, and the other end is provided with at least two third arc-shaped sliding fitting parts and at least one fourth arc-shaped sliding part; Along the length direction of the base, the third arc-shaped sliding portion and the fourth arc-shaped sliding fitting portion are alternately arranged; the third arc-shaped sliding fitting portion and the fourth arc-shaped sliding portion are alternately arranged.

8. The rotating shaft mechanism according to any one of claims 1 to 7, characterized in that: The swing arm assembly includes a first swing arm, and the door panel assembly includes a second swing arm. One end of the second swing arm is connected to the first swing arm, and one end of the first swing arm is connected to the second swing arm. One of the two is provided with the first arc-shaped sliding portion and the second arc-shaped sliding matching portion, and the other is provided with two of the first arc-shaped sliding matching portions and the second arc-shaped sliding portions.

9. The rotating shaft mechanism according to any one of claims 1 to 7, characterized in that: The swing arm assembly comprises a first swing arm and a second swing arm, one end of the first swing arm is rotatably connected to the base, and the other end of the first swing arm is rotatably connected to one end of the second swing arm; One end of the second swing arm connected to the door panel assembly and one end of the door panel assembly connected to the second swing arm, one of which is provided with the first arc-shaped sliding portion and the second arc-shaped sliding matching portion, and the other is provided with two of the first arc-shaped sliding matching portions and the second arc-shaped sliding portions.

10. The rotating shaft mechanism according to claim 9, characterized in that: One end of the first swing arm connected to the second swing arm and one end of the second swing arm connected to the first swing arm are provided with a fifth arc-shaped sliding portion and a sixth arc-shaped sliding fitting portion, and the other end is provided with a fifth arc-shaped sliding fitting portion and a sixth arc-shaped sliding fitting portion; The fifth arc-shaped sliding portion is slidably matched with the fifth arc-shaped sliding matching portion, and the sixth arc-shaped sliding portion is slidably matched with the sixth arc-shaped sliding matching portion, so that the first swing arm is rotationally connected with the second swing arm.

11. The rotating shaft mechanism according to claim 10, characterized in that: The fifth arc-shaped sliding portion and the sixth arc-shaped sliding fitting portion are an integral structure with the first swing arm, and / or the fifth arc-shaped sliding fitting portion and the sixth arc-shaped sliding portion are an integral structure formed integrally with the second swing arm.

12. The rotating shaft mechanism according to claim 10 or 11, characterized in that: One end of the first swing arm connected to the second swing arm and one end of the second swing arm connected to the first swing arm, one of which is provided with at least two of the fifth arc-shaped sliding parts and at least one of the sixth arc-shaped sliding fitting parts, and the other is provided with at least two of the fifth arc-shaped sliding fitting parts and at least one of the sixth arc-shaped sliding parts; Along the length direction of the base, the fifth arc-shaped sliding portion and the sixth arc-shaped sliding fitting portion are alternately arranged; the fifth arc-shaped sliding fitting portion and the sixth arc-shaped sliding portion are alternately arranged.

13. The rotating shaft mechanism according to any one of claims 10 to 12, characterized in that: One of the fifth arc-shaped sliding portion and the fifth arc-shaped sliding matching portion is an arc-shaped sliding groove, and the other has an arc-shaped protrusion that slides with the arc-shaped sliding groove; One of the sixth arc-shaped sliding portion and the sixth arc-shaped sliding matching portion is an arc-shaped sliding groove, and the other One has an arc-shaped protrusion that slidably cooperates with the arc-shaped sliding groove.

14. The rotating shaft mechanism according to any one of claims 1 to 11, characterized in that: One end of the swing arm assembly connected to the door panel assembly and one end of the door panel assembly connected to the swing arm assembly, one of which is provided with at least two of the first arc-shaped sliding parts and at least one of the second arc-shaped sliding matching parts, and the other is provided with at least two of the first arc-shaped sliding matching parts and at least one of the second arc-shaped sliding parts; Along the length direction of the base, the first arc-shaped sliding portion and the second arc-shaped sliding fitting portion are alternately arranged; the first arc-shaped sliding fitting portion and the second arc-shaped sliding portion are alternately arranged.

15. The rotating shaft mechanism according to any one of claims 1 to 14, characterized in that: One of the first arc-shaped sliding portion and the first arc-shaped sliding matching portion is an arc-shaped sliding groove, and the other has an arc-shaped protrusion that slides with the arc-shaped sliding groove; One of the second arc-shaped sliding portion and the second arc-shaped sliding matching portion is an arc-shaped sliding groove, and the other has an arc-shaped protrusion that slides and matches with the arc-shaped sliding groove.

16. The rotating shaft mechanism according to any one of claims 1 to 15, characterized in that: The first arc-shaped sliding portion and the second arc-shaped sliding fitting portion are an integral structure with the swing arm assembly, and / or the first arc-shaped sliding fitting portion and the second arc-shaped sliding portion are an integral structure formed integrally with the door panel assembly.

17. An electronic device, characterized in that: The electronic device comprises: A folding device, comprising a first shell, a second shell and a rotating shaft mechanism as claimed in any one of claims 1 to 16; The first shell is connected to the door panel assembly on one side of the base, and the second shell is connected to the door panel assembly on the other side of the base; A folding screen is arranged on the first shell and the second shell, and the position of the foldable part of the folding screen corresponds to the position of the rotating shaft mechanism.

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