A rotating shaft mechanism and a foldable electronic device

Abstract

The application discloses a rotating shaft mechanism and a foldable electronic device. The rotating shaft mechanism comprises a base and a rotating part. The base comprises a sliding groove and a first stop part, and the first stop part is located in the sliding groove and close to one end of the external environment. The rotating part comprises a rotating part and a second stop part, and the second stop part is located at the end of the rotating part. The rotating part and the second stop part are located in the sliding groove. When the rotating shaft mechanism rotates to a folding state, the rotating part slides in the sliding groove to make the first stop part and the second stop part abut, and prevent the rotating part from moving continuously along the sliding direction. Under the development trend of thinning and narrowing of the rotating shaft mechanism, the anti-disengagement stop structure formed by the first stop part and the second stop part can make the rotating part and the base have sufficient overlap in the folding state. Not only can the rotating part remain in the folding state structure, but also the stop area can be improved to avoid the rotating part from disengaging from the base under the action of external force in the folding state, and the normal opening and closing of the rotating shaft mechanism is ensured.

Description

Technical Field

[0001] This application relates to the field of terminal equipment technology, and in particular to a pivot mechanism and a foldable electronic device. Background Technology

[0002] With the development of terminal technology, the screen sizes of mobile phones and other electronic devices are getting larger and larger. In order to meet users' portability needs while increasing screen size, foldable screen devices are gradually entering users' usage scenarios. Foldable screen devices include a hinge mechanism, which includes a base and a rotating component. The rotating component rotates around the base to realize the folding or unfolding of the hinge mechanism, thereby realizing the folding and unfolding of the foldable screen device.

[0003] However, in the folded state, the overlap between the rotating component and the base is small. When subjected to external force, the rotating component is very easy to detach from the base, affecting the opening and closing of the shaft mechanism. Summary of the Invention

[0004] This application provides a pivot mechanism and a foldable electronic device to solve the problem that the rotating part of the pivot mechanism is prone to detach from the base when subjected to external force.

[0005] In a first aspect, this application provides a rotating shaft mechanism, comprising: a base and a rotating member. The base includes a groove and a first stop portion, the first stop portion being located within the groove and at one end close to the external environment; the rotating member includes a rotating portion and a second stop portion, the second stop portion being located at the end of the rotating portion, and the rotating portion and the second stop portion being located within the groove; when the rotating shaft mechanism rotates from an unfolded state to a folded state, the rotating portion slides within the groove, causing the first stop portion and the second stop portion to abut against each other, thereby preventing the rotating member from continuing to move along the sliding direction.

[0006] The rotating shaft mechanism provided in this application embodiment comprises a first stop portion and a second stop portion forming a set of anti-detachment stop structures. With the trend towards thinner and narrower rotating shaft mechanisms, the anti-detachment stop structure ensures sufficient overlap between the rotating component and the base in the folded state. This not only maintains the rotating component in the folded state but also increases the stop area. Thus, it prevents the rotating component from detaching from the base when subjected to external force in the folded state, ensuring the normal opening and closing of the rotating shaft mechanism and improving the user experience.

[0007] In some implementations, the slide includes a first slide surface and a second slide surface facing each other; a first stop portion is located at the end of the first slide surface closer to the external environment and protrudes toward the second slide surface. This allows the first stop portion to prevent the rotating member from continuing to rotate in the rotation direction when the slide is folded.

[0008] In some implementations, the rotating part includes a first sliding surface and a second sliding surface facing away from each other. The first sliding surface faces the first slide groove surface, and the second sliding surface faces the second slide groove surface. A second stop portion is located on the first sliding surface and protrudes towards the first slide groove surface. When the rotating shaft mechanism switches between an unfolded state and a folded state, the protruding tip of the second stop portion slides in conjunction with the first slide groove surface, and the second sliding surface slides in conjunction with the second slide groove surface, thereby enabling the rotating part to slide within the slide groove. This facilitates the sliding of the rotating part within the slide groove, thereby enabling the rotating component to rotate around the base.

[0009] In some implementations, the first stop portion includes a first mating surface located at the end of the first stop portion facing away from the external environment, and the first mating surface is connected to the first sliding surface; the second stop portion includes a second mating surface located at the end of the second stop portion facing the external environment, and the second mating surface is connected to the first sliding surface; the first mating surface and the second mating surface are opposite to each other. In this way, the first and second stop portions can be engaged using the first and second mating surfaces.

[0010] In some implementations, when the rotating shaft mechanism is in the unfolded state, there is a gap between the first mating surface and the second mating surface; when the rotating shaft mechanism is in the folded state, the first mating surface and the second mating surface abut against each other and are parallel. In this way, when the rotating shaft mechanism rotates to the folded state, the first mating surface of the first stop portion on the support plate abuts against the second mating surface of the second stop portion on the rotating member, which can increase the contact area between the first mating surface and the second mating surface, that is, increase the stop area.

[0011] In some implementations, when the first mating surface abuts against the second mating surface, the first mating surface and the second mating surface are in a zero-fit configuration; or, the first mating surface and the second mating surface are in an interference fit. This can further improve the anti-detachment and positioning effect.

[0012] In some implementations, when the rotating shaft mechanism is in a folded state, the first mating surface and the second mating surface have a target overlap amount; the target overlap amount is greater than or equal to 0.3mm. Thus, by increasing the overlap amount of the first and second stop portions in the folded state, the stop area of ​​the anti-detachment stop structure can be increased. This not only ensures that the rotating component remains in a folded state but also makes it less likely for the rotating component to detach from the support plate during rotation, improving the anti-detachment stop effect.

[0013] In some implementations, the groove is an arc groove; the groove includes a center and a central plane passing through the center, with the central plane parallel to the width direction of the rotating shaft mechanism. This allows the inclination of the first and second mating surfaces to be set using the center and the central plane, thereby increasing the overlap.

[0014] In some implementations, the extension direction of the first mating surface passes through the center of the circle; the extension direction of the second mating surface also passes through the center of the circle. This provides a first method for increasing the overlap between the first and second mating surfaces.

[0015] In some implementations, the extension direction of the first mating surface does not pass through the center of the circle; the extension direction of the second mating surface also does not pass through the center of the circle. This provides a second way to increase the overlap between the first and second mating surfaces.

[0016] In some implementations, the extension direction of the first mating surface forms an angle with the central plane of the slide groove; when the rotating shaft mechanism is in a folded state, the extension direction of the second mating surface forms an angle with the central plane of the slide groove; the angle ranges from 0° to 90°. This provides a third way to increase the overlap between the first and second mating surfaces.

[0017] In some implementations, the extension direction of the first mating surface is parallel to the central plane of the slide groove; when the rotating shaft mechanism is in a folded state, the extension direction of the second mating surface is parallel to the central plane of the slide groove. This provides a fourth way to increase the overlap between the first and second mating surfaces.

[0018] In some implementations, the first stop portion further includes a first end face opposite to the first mating surface; when the rotating shaft mechanism switches between an unfolded state and a folded state, the first end face engages with the first sliding surface of the rotating portion for sliding. This prevents the first end face from obstructing the sliding of the rotating portion when the rotating member rotates around the base.

[0019] In some implementations, the base further includes a first surface that faces away from the first sliding groove surface; a first position of the first sliding groove surface is at a first distance from the first surface; wherein, the first position refers to the connection position between the first mating surface and the first sliding groove surface, and the first distance is greater than or equal to 0.25mm. This ensures that the base's own strength meets requirements when it engages with the rotating component in an anti-disengagement stop engagement, preventing the base from breaking.

[0020] In some implementations, the second stop portion further includes a second end face opposite to the second mating surface; when the rotating shaft mechanism is in the unfolded state, the second end face is coplanar with the first surface; a second distance exists between the second position of the second mating surface and the second end face; wherein, the second position refers to the connection position between the second mating surface and the first sliding surface, and the second distance is greater than or equal to 0.25mm. This ensures that the rotating component's own strength meets requirements when it is in anti-disengagement stop engagement with the base, preventing breakage of the rotating component.

[0021] In some implementations, the base includes multiple first stop portions located within a groove and near one end of the base, spaced apart along the axial direction of the rotating shaft mechanism. The rotating component includes multiple second stop portions located at the ends of the rotating component, spaced apart along the axial direction of the rotating shaft mechanism, with each first stop portion corresponding to one of the second stop portions. When the rotating shaft mechanism rotates from an unfolded state to a folded state, the rotating component slides within the groove, causing the corresponding first and second stop portions to abut against each other, preventing the rotating component from continuing to move along the sliding direction. This adds multiple sets of anti-detachment stop structures to the rotating shaft mechanism, which are staggered along the axial direction to increase the stop area and improve the anti-detachment stop effect.

[0022] In some implementations, the base includes a support plate and a bracket connected together; a slide groove is located between the support plate and the bracket, with one of the first slide groove surface and the second slide groove surface located on the support plate and the other on the bracket. In this way, the two slide groove surfaces are located on different structures, facilitating the subsequent installation of the first stop portion on different structures, thereby enabling the first stop portion on the support plate or bracket to form an anti-disengagement stop structure with the second stop portion on the rotating component.

[0023] In some implementations, the support plate includes a central beam structure and two supporting beam structures, with the central beam structure located between the two supporting beam structures along the width direction of the rotating shaft mechanism. When the first slide surface is on the support plate, multiple first stop portions are spaced apart on the first slide surface of the supporting beam structure facing the bracket. Thus, by utilizing the first stop portions on the support plate and the second stop portions on the rotating component to form an anti-detachment stop structure, sufficient overlap between the rotating component and the support plate can be achieved in the folded state. This not only ensures the rotating component remains in the folded state but also increases the stop area, preventing the rotating component from detaching from the base when subjected to external forces in the folded state.

[0024] In a second aspect, this application provides a foldable electronic device, including a display screen, a first body, a second body, and a hinge mechanism as provided in the first aspect; the first body and the second body are located on opposite sides of the axis of the hinge mechanism, and the first body and the second body are respectively connected to the hinge mechanism; the display screen covers the first body, the second body and the hinge mechanism, and the first body and the second body rotate as the hinge mechanism folds or unfolds, so as to drive the display screen to fold or unfold.

[0025] Understandably, the foldable electronic device provided in the second aspect above uses the hinge mechanism provided in the first aspect. Therefore, the beneficial effects it can achieve can be referred to the beneficial effects of the hinge mechanism provided in the first aspect, which will not be repeated here. Attached Figure Description

[0026] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the foldable electronic device provided in the embodiments of this application;

[0028] Figure 2 This is a structural schematic diagram of a rotating shaft assembly;

[0029] Figure 3 This is an exploded structural diagram of a rotating shaft assembly;

[0030] Figure 4 This is a schematic diagram of a rotating shaft assembly in an unfolded state.

[0031] Figure 5 This is a structural schematic diagram of a first rotating component;

[0032] Figure 6 This is a schematic diagram of a fixed support structure.

[0033] Figure 7 This is a schematic diagram of a fixed bracket and a first rotating component;

[0034] Figure 8A This is a schematic diagram of the first structure of a middle door panel;

[0035] Figure 8B This is a second structural diagram of a middle door panel;

[0036] Figure 9A yes Figure 4 The first structural schematic diagram of section AA;

[0037] Figure 9B yes Figure 4 The second structural schematic diagram of section AA;

[0038] Figure 10 This is an exploded structural diagram of the rotating shaft mechanism provided in the embodiments of this application;

[0039] Figure 11 This is a first structural schematic diagram of the rotating shaft mechanism provided in the embodiments of this application;

[0040] Figure 12 yes Figure 11 The first structural schematic diagram of the BB section;

[0041] Figure 13 yes Figure 11 The second structural schematic diagram of the BB section;

[0042] Figure 14 yes Figure 11 The third structural schematic diagram of the BB section;

[0043] Figure 15A This is a first structural schematic diagram of the support plate provided in the embodiments of this application;

[0044] Figure 15B This is a second structural schematic diagram of the support plate provided in the embodiments of this application;

[0045] Figure 16 This is a first structural schematic diagram of the rotating component provided in the embodiments of this application;

[0046] Figure 17 This is a first structural schematic diagram of the rotating component and bracket provided in the embodiments of this application;

[0047] Figure 18 This is a first partially exploded structural diagram of the rotating shaft mechanism provided in the embodiments of this application;

[0048] Figure 19 This is a second partially exploded structural diagram of the rotating shaft mechanism provided in the embodiments of this application;

[0049] Figure 20 This is a third partially exploded structural diagram of the rotating shaft mechanism provided in the embodiments of this application;

[0050] Figure 21 This is the fourth partially exploded structural diagram of the rotating shaft mechanism provided in the embodiments of this application;

[0051] Figure 22 This is a second structural schematic diagram of the rotating component provided in the embodiments of this application;

[0052] Figure 23 This is a second structural schematic diagram of the rotating component and the bracket provided in the embodiments of this application;

[0053] Figure 24 This is a second structural schematic diagram of the rotating shaft mechanism provided in the embodiments of this application;

[0054] Figure 25 yes Figure 24 A schematic diagram of the CC section.

[0055] Illustration:

[0056] Among them, 10-first fuselage, 20-second fuselage, 30-display screen, 40-rotating shaft assembly, 41-rotating shaft base, base cover 411, 412-fixed bracket, 412a-arc sliding surface, 4121-first rotating fit structure, 4122-avoiding groove, 413-middle door panel, 4131-middle beam, 4132-avoiding hole, 4133-second rotating fit structure, 414-second guide groove, 42-left door panel, 43-right door panel, 44-left connector, 45-right connector, 46-first rotating component, 461-rotating structure, 462-connecting structure, 463-stop structure, 464-slip tongue structure, 47-second rotating component, 48-third rotating component;

[0057] 100-Base, 100a-First surface, 101-Slide groove, 101a-First slide groove surface, 101b-Second slide groove surface, 101c-Slide groove center plane, 102-First stop part, 102a-First mating surface, 102b-First end face, 103-Support plate, 1031-Middle beam structure, 1032-Support beam structure, 1033-Through hole, 1034-Rotating mating structure, 1034a-Circular arc mating surface, 104-Bracket, 1041-Second rotating structure, 1042-Groove, 105-Shaft cover, 106-Rotating slide groove;

[0058] 200-Rotating component, 201-Rotating part, 201a-First sliding surface, 201b-Second sliding surface, 202-Second stop part, 202a-Second mating surface, 202b-Second end face, 2021-Protruding top end, 203-Connecting part, 204-First rotating structure, 205-Protrusion. Detailed Implementation

[0059] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are all within the protection scope of this application.

[0060] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0061] Furthermore, in this application, directional terms such as "upper," "lower," "left," and "right" are defined relative to the indicated placement of the components in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the placement of the components in the accompanying drawings.

[0062] The foldable electronic devices described in this application include, but are not limited to, mobile phones, laptops, tablets, personal digital assistants, or wearable devices. The following description uses a mobile phone as an example of a foldable electronic device.

[0063] Figure 1 This is a schematic diagram of the structure of the foldable electronic device provided in the embodiments of this application.

[0064] like Figure 1 As shown, the foldable electronic device may include a first body 10, a second body 20, a display screen 30, and a hinge assembly 40, wherein, Figure 1 The dashed lines schematically indicate the area of ​​the hinge assembly 40. The first body 10 and the second body 20 are respectively located on both sides of the hinge assembly 40 along its axial direction. The first body 10 and the second body 20 are connected to the hinge assembly 40 and can be rotated through the hinge assembly 40 to reduce the angle between the first body 10 and the second body 20 until the foldable electronic device is in a folded state (e.g., ...). Figure 2 (as shown in the diagram); or increase the angle between the first body 10 and the second body 20 until the foldable electronic device is in an unfolded state (as shown in the diagram). Figure 1 (as shown in the diagram). The foldable electronic device can also be unfolded or folded to an intermediate state, which can be any state between the unfolded state and the folded state.

[0065] The display screen 30 covers the first body 10, the second body 20, and the hinge assembly 40, and is connected to the first body 10 and the second body 20 respectively. The rotation of the first body 10 and the second body 20 can cause the display screen 30 to bend or unfold. For example, the display screen 30 can be a flexible screen that can be bent, and the display screen 30 has a bending area, so that the display screen 30 can be bent in the bending area as the hinge assembly 40 rotates.

[0066] The display screen 30 moves with the foldable electronic device, and the state of the foldable electronic device is the same as the state of the hinge assembly 40. When the foldable electronic device is in the unfolded state, the hinge assembly 40 is also in the unfolded state. In the unfolded state, the first body 10 and the second body 20 are arranged parallel to each other on both sides of the hinge assembly 40, and the display screen 30 is laid flat on the hinge assembly 40 in the unfolded state, displaying the entire screen, giving the foldable electronic device a large display area to improve the user's viewing and operating experience. When the foldable electronic device is in the folded state, the hinge assembly 40 is also in the folded state (e.g., Figure 2 (As shown). In the folded state, the first body 10 and the second body 20 are positioned opposite each other on both sides of the hinge assembly 40, which presses the display screen 30 into a teardrop shape. When the foldable electronic device is in the folded state, its planar dimensions are small, making it easy for users to carry and store. When the foldable electronic device is in the intermediate state, the hinge assembly 40 is also in the intermediate state.

[0067] Depending on the rotation direction of the first body 10 and the second body 20, the flexible screen may be hidden inside the body or wrapped around the outside of the foldable electronic device when it is in the folded state. Specifically, when the first body 10 and the second body 20 are folded towards the front of the flexible screen, the flexible screen is hidden inside the body when the foldable electronic device is in the folded state. This type of foldable electronic device can be called an inward-folding screen electronic device, such as an inward-folding screen phone (e.g.,...). Figure 2 (Structure shown); When the first body 10 and the second body 20 are folded toward the back of the flexible screen, the flexible screen surrounds the outside of the body when the foldable electronic device is in the folded state. This type of foldable electronic device can be called an outward folding screen electronic device, such as an outward folding screen mobile phone (the structure is not shown in the figure).

[0068] It should be noted that electronic components such as circuit boards, camera modules, speaker modules, and batteries can be installed inside the first body 10 and the second body 20, which will not be listed here.

[0069] To facilitate the explanation of the positions of various components in the foldable electronic device, this application embodiment establishes a three-dimensional coordinate system based on the foldable electronic device, wherein the x-axis direction is the width direction of the foldable electronic device, the y-axis direction is the length direction of the foldable electronic device, and the z-axis direction is the thickness direction of the foldable electronic device.

[0070] Figure 2 This is a structural diagram of a rotating shaft assembly.

[0071] like Figure 2As shown, the pivot assembly 40 includes a pivot base 41, a left door panel 42, a right door panel 43, a left connector 44, a right connector 45, two sets of first rotating members 46, two sets of second rotating members 47 (also referred to as sliding groove rotating members), and two sets of third rotating members 48. It should be noted that each set of first rotating members 46 includes two first rotating members 46, each set of second rotating members 47 includes two second rotating members 47, and each set of third rotating members 48 includes two third rotating members 48.

[0072] The length direction of the rotating shaft base 41 is the axial direction Z0 of the rotating shaft assembly 40, and the axial direction Z0 is parallel to the y-axis. Two sets of first rotating members 46, two sets of second rotating members 47, and two sets of third rotating members 48 are all spaced apart along the axial direction Z0. The two first rotating members 46 of the same set are located on opposite sides of the rotating shaft base 41, the two second rotating members 47 of the same set are located on opposite sides of the rotating shaft base 41, and the two third rotating members 48 of the same set are located on opposite sides of the rotating shaft base 41. The first rotating members 46, second rotating members 47, and third rotating members 48 located on the same side are rotatably connected to the rotating shaft base 41 via a rotating shaft 49.

[0073] The left door panel 42 and the right door panel 43 are located on opposite sides of the pivot base 41 along the axial direction Z0. The left connector 44 and the right connector 45 are located on opposite sides of the pivot base 41 along the axial direction Z0. The left door panel 42 is connected to the left connector 44, and the right door panel 43 is connected to the right connector 45.

[0074] The left connecting member 44 is movably connected to one side of the rotating shaft base 41 via two first rotating members 46, two second rotating members 47, and two third rotating members 48 located on the same side. The right connecting member 45 is movably connected to the other side of the rotating shaft base 41 via two first rotating members 46, two second rotating members 47, and two third rotating members 48 located on the same side. The movable connection can be either a rotating engagement or a sliding connection. It should be noted that, for reliability, each set of rotating members can also have corresponding connection relationships with the left door panel 42 and the right door panel 43; these will not be elaborated upon here.

[0075] The first rotating member 46 is configured to enable the left connecting member 44 and the right connecting member 45 to rotate around the rotating shaft base 41; the second rotating member 47 is configured to enable the left connecting member 44 and the right connecting member 45 to rotate synchronously, thereby enabling the first body 10 and the second body 20 to rotate synchronously; the third rotating member 48 is configured to enable the left door panel 42 and the right door panel 43 to rotate synchronously.

[0076] Combination Figure 1 and Figure 2In the structure of the foldable electronic device, the left connector 44 is connected to the first body 10, and the right connector 45 is connected to the second body 20. Specifically, the left connector 44 is connected to the middle frame of the first body 10, and the right connector 45 is connected to the middle frame of the second body 20. The display screen 30 covers the left door panel 42 and the right door panel 43 (hereinafter collectively referred to as door panels), and the door panels support the display screen 30.

[0077] When the hinge assembly 40 switches between folded and unfolded states, the left connector 44 and the right connector 45 drive the first body 10 and the second body 20 to fold or unfold. Simultaneously, the door panel moves with the folding and unfolding of the hinge assembly 40, pushing the display screen 30 to fold or unfold. This provides support for the display screen 30 in the unfolded state and allows the display screen 30 to be pressed into a teardrop shape in the folded state. Thus, the foldable electronic device can be folded or unfolded when the hinge assembly 40 folds or unfolds.

[0078] Figure 3 This is an exploded structural diagram of a rotating shaft assembly; Figure 4 This is a schematic diagram of a rotating shaft assembly in its unfolded state. Figure 3 and Figure 4 Show Figure 2 The central shaft assembly 40 is a partial structure in the region of the first rotating member 46.

[0079] like Figure 3 and Figure 4 As shown, the pivot base 41 includes a base cover 411, a fixed bracket 412, and a middle door panel 413. The middle door panel 413, the fixed bracket 412, and the base cover 411 are stacked and connected along the z-axis.

[0080] Two first rotating members 46 in the same group are located on opposite sides of the rotating shaft base 41. One end of the first rotating member 46 is located between the fixed bracket 412 and the middle door panel 413, and can rotate relative to the fixed bracket 412 and the middle door panel 413 to realize the rotation of the first rotating member 46 around the rotating shaft base 41.

[0081] It should be noted that the movable connection between the first rotating component 46, the second rotating component 47, and the third rotating component 48 and the pivot base 41 includes virtual pivots and / or pivot connections. The pivot connection utilizes a physical pivot, while the virtual pivot connection uses a distributed groove connection through the cooperation of arc-shaped sliding grooves and arc-shaped sliders. Correspondingly, different arc-shaped sliding grooves and / or pivots are provided between the fixed bracket 412 and the middle door panel 413 to achieve the movable connection between the first rotating component 46, the second rotating component 47, and the third rotating component 48 and the pivot base 41, enabling the folding and unfolding of the foldable electronic device. This article uses the virtual pivot connection between the first rotating component 46 and the pivot base 41 as an example for illustration.

[0082] Figure 5 This is a schematic diagram of the structure of a first rotating component.

[0083] like Figure 5 As shown in (a) and (b), the first rotating member 46 includes a rotating structure 461 and a connecting structure 462. The rotating structure 461 is used to rotate about the rotating shaft base 41, and the connecting structure 462 is used to connect with the corresponding connecting member (…). Figure 2 Connect the left connector 44 or the right connector 45 in the middle.

[0084] The first rotating member 46 also includes a stop structure 463 and two sliding tongue structures 464. The stop structure 463 is located at one end of the rotating structure 461 along the y-axis, and the two sliding tongue structures 464 are located at opposite ends of the rotating structure 461 along the y-axis. The stop structure 463 is located at the connection position between the sliding tongue structure 464 and the rotating structure 461, and protrudes relative to the rotating structure 461.

[0085] The stop structure 463 serves as an anti-disengagement stop to prevent the first rotating member 46 from disengaging from the fixed bracket 412 when the rotating shaft assembly 40 rotates, and to maintain the rotational position of the first rotating member 46 relative to the fixed bracket when in the folded state. The sliding tongue structure 464 is used to achieve rotational engagement between the first rotating member 46 and the fixed bracket 412.

[0086] Figure 6 This is a schematic diagram of a fixed support structure.

[0087] like Figure 6 As shown, the fixed bracket 412 includes two arc-shaped sliding surfaces 412a, which are spaced apart along the x-axis and configured to slide in a circular arc with the first rotating member 46.

[0088] The fixed bracket 412 also includes four first rotational engagement structures 4121, which are arranged in a rectangular array. Along the y-axis, two first rotational engagement structures 4121 located on the same side are spaced apart on opposite sides of the arcuate sliding surface 412a on that side, and two first rotational engagement structures 4121 located on the other side are spaced apart on opposite sides of the arcuate sliding surface 412a on that side.

[0089] Two first rotational fit structures 4121 located on the same side along the y-axis are opposite each other, and two first rotational fit structures 4121 located on the same side along the x-axis are opposite each other. The length direction of the first rotational fit structure 4121 is parallel to the x-axis direction.

[0090] The fixed bracket 412 also includes two clearance grooves 4122, which are spaced apart along the x-axis and are located one-to-one on one side of the two first rotating engagement structures 4121 arranged along the x-axis of the fixed bracket 412. The clearance groove 4122 is adjacent to the corresponding arcuate sliding surface 412a. In the z-axis direction, the bottom surface of the clearance groove 4122 (not shown in the figure) is lower than the arcuate sliding surface 412a, forming a height difference h0.

[0091] The clearance groove 4122 is located at the end of the bracket 412 along the y-axis direction closer to the external environment. Figure 5 (On the left side), due to the space limitation inside the rotating shaft assembly 40, the clearance groove 4122 is not located on the side of the fixed bracket 412 along the y-axis near the second rotating member 47. Figure 5 The clearance groove 4122 is provided only on one side of the first rotating member 46, and not on the other side.

[0092] Figure 7 This is a schematic diagram of a fixed bracket and a first rotating component. Wherein, Figure 7 The structure in the folded state is shown, and only the structure of the first rotating member 46 is shown.

[0093] like Figure 7 As shown, the rotation structure 461 of the first rotating member 46 is disposed between two first rotational mating structures 4121 located on the same side along the y-axis direction. The stop structure 463 of the first rotating member 46 is embedded in the clearance groove 4122 of the fixed bracket 412. The two sliding tongue structures 464 of the first rotating member 46 correspond one-to-one with the two first rotational mating structures 4121 of the fixed bracket 412 and rotate in coordination.

[0094] When the rotating shaft assembly 40 rotates, the rotating structure 461 slides along the arcuate sliding surface 412a of the fixed bracket 412, the stop structure 463 slides within the clearance groove 4122, and the sliding tongue structure 464 rotates in conjunction with the first rotating engagement structure 4121. In this way, the rotation of the first rotating member 46 relative to the fixed bracket 412 can be realized.

[0095] Figure 8A This is a schematic diagram of the first structure of a middle door panel; Figure 8B This is a second structural diagram of a middle door panel.

[0096] in, Figure 8A and Figure 8B The structure is shown from different perspectives.

[0097] like Figure 8A and Figure 8B As shown, the middle door panel 413 includes a middle beam 4131, a clearance hole 4132, and a second rotational fitting structure 4133.

[0098] The clearance holes 4132 are located on both sides of the central beam 4131. For example, Figure 8A The diagram shows four clearance holes 4132. Two clearance holes 4132 are included on each side of the central beam 4131. The clearance holes 4132 are used to avoid the end of the rotating structure 461 of the first rotating member 46 in the unfolded state.

[0099] The second rotational fitting structure 4133 is located between two clearance holes 4132 on the same side. There are two second rotational fitting structures 4133, which are located at opposite ends of the middle door panel 413 along the x-axis. The two second rotational fitting structures 4133 correspond one-to-one with the two arcuate sliding surfaces 412a of the fixed bracket 412, and the surface of the second rotational fitting structure 4133 facing the corresponding arcuate sliding surface 412a is an arcuate surface. In this way, the one-to-one correspondence of the second rotational fitting structure 4133 and the arcuate sliding surface 412a can form a first guide groove (not shown in the figure). The rotation structure 461 of the first rotating member 46 is located in the first guide groove and can slide in the first guide groove, thereby realizing the rotation of the first rotating member 46 around the rotating shaft base 41.

[0100] Figure 9A yes Figure 4 The first structural schematic diagram of section AA. Among them, Figure 9A The structure is shown in its unfolded state.

[0101] like Figure 9A As shown, the surface of the middle door panel 413 facing the fixed bracket 412 is an arc surface, and the first rotational fitting structure 4121 of the fixed bracket 412 is also an arc structure. The first rotational fitting structure 4121 is opposite to the middle door panel 413, and the first rotational fitting structure 4121 and the middle door panel 413 are spaced apart along the z-axis to form a second guide groove 414. Both the second guide groove 414 and the first guide groove have a guiding function for the first rotating member 46 to rotate around the rotating shaft base 41.

[0102] The two second guide grooves 414 are symmetrical along the y-axis, and each of the two second guide grooves 414 corresponds one-to-one with one of the two first rotating parts 46. Figure 5 The sliding tongue structure 464 on the rotating structure 461 of the first rotating member 46 is correspondingly embedded in the second guide groove 414 and can slide in the second guide groove 414 to realize the rotation of the first rotating member 46 around the rotating shaft base 41.

[0103] When the pivot assembly 40 is in the unfolded state, one end of the rotation structure 461 of the two first rotating members 46 corresponds one-to-one with the clearance hole 4132 of the middle door panel 413, and protrudes through the corresponding clearance hole 4132. The stop structure 463 of the two first rotating members 46 extends in opposite directions and has a certain gap in the x-axis direction to avoid interference between them.

[0104] With the trend towards thinner and lighter foldable electronic devices, their size is decreasing, necessitating a continuous reduction in the thickness and narrowing of the hinge assembly 40. This results in a compression of the space for arranging the various rotating components, and a corresponding reduction in the size of each component within the hinge assembly 40. In this scenario, to ensure the anti-detachment effect of the stop structure 463, the stop structure 463 has a certain stop length along the x-axis. To avoid the stop structure 463, the width of the central beam 4131 located between two opposing stop structures 463 along the x-axis is reduced to width W0, thereby reducing the strength of the fixing bracket 412.

[0105] To provide the clearance groove 4122 for the avoidance stop structure 463, the wall thickness of the fixed bracket 412 at the clearance groove 4122 is reduced. Specifically, due to the height difference h0 between the clearance groove 4122 and the arc-shaped sliding surface 412a, the wall thickness of the fixed bracket 412 between the bottom surface of the clearance groove 4122 and the bottom surface of the fixed bracket 412 is reduced to wall thickness h1, and the wall thickness between the tail end of the clearance groove 4122 and the outer edge of the fixed bracket 412 is reduced to wall thickness h2. The tail end refers to the end of the clearance groove 4122 that is adjacent to the external environment.

[0106] With the reduction in size and narrowing, the decrease in wall thickness in some areas will further reduce the strength of the fixed bracket 412. To ensure the rotation effect of the first rotating member 46, the sliding groove surface corresponding to the first guide groove formed by the middle door panel 413 and the fixed bracket 412 is relatively large. This will reduce the area of ​​other supporting regions of the middle door panel 413 and the fixed bracket 412, thereby affecting the strength of the middle door panel 413 and the fixed bracket 412 themselves. Therefore, the overall strength of the pivot base 41 will be reduced, and it is very easy for it to break when the pivot assembly 40 is subjected to external force or drop.

[0107] Figure 9B yes Figure 4 The second structural schematic diagram of section AA. Wherein, Figure 9B The structure is shown in its folded state.

[0108] like Figure 9B As shown, when the rotating shaft assembly 40 is rotated to the folded state, the stop structure 463 slides in the clearance groove 4122 and stops at the tail end of the clearance groove 4122.

[0109] Combination Figure 7 and Figure 9B When the pivot assembly 40 rotates to the folded state, the overlap between the first rotating member 46 and the fixed bracket 412 and the middle door panel 413 decreases. The rotation of the first rotating member 46 and the fixed bracket 412 and the middle door panel 413 is a circular arc sliding fit, so there is no anti-detachment stop between the first rotating member 46 and the fixed bracket 412 and the middle door panel 413. Only in the A0 area, the stop structure 463 of the first rotating member 46 prevents the first rotating member 46 from detaching from the fixed bracket 412 and keeps the first rotating member 46 in the folded state.

[0110] However, since the stop structure 463 is only located at one end of the first rotating member 46, the anti-detachment stop effect of the first rotating member 46 in cooperation with the fixed bracket 412 is relatively low. During the switching between the folded and unfolded states of the hinge assembly 40, or when the foldable electronic device is dropped, or when the first rotating member 46 is subjected to an oblique force in the folded state, the first rotating member 46 is very likely to detach from the fixed bracket 412 and the middle door panel 413, affecting the opening and closing of the hinge assembly 40, and thus rendering the foldable electronic device unusable, affecting the user experience.

[0111] To solve the above-mentioned technical problems, this application provides a rotating shaft mechanism, which adds multiple sets of anti-detachment stop structures and distributes them in a staggered manner in the axial direction to increase the stop area. In addition, by utilizing the cooperation between the first rotating member 46 and the middle door panel 413, the first rotating member 46 is not easy to detach during rotation. At the same time, the size of each component in the rotating shaft mechanism is not reduced, thereby increasing the strength of the rotating shaft mechanism.

[0112] Figure 10 This is an exploded structural diagram of the rotating shaft mechanism provided in the embodiments of this application; Figure 11 This is a schematic diagram of the first structure of the rotating shaft mechanism provided in the embodiments of this application. Wherein, Figure 10 Only the structure of one rotating member 200 is shown. Figure 10 and Figure 11 Only the structure of the rotating shaft mechanism located in the area where the rotating member 200 is located is shown.

[0113] like Figure 10 and Figure 11 As shown, in some embodiments, the rotating shaft mechanism may include a base 100 and a rotating member 200.

[0114] The base 100 can be a rotating base for a rotating shaft mechanism, with the length direction of the base 100 being the axial direction of the rotating shaft mechanism. The width direction of the rotating shaft mechanism is the x-axis direction, the length direction is the y-axis direction, the thickness direction is the z-axis direction, and the axial direction is parallel to the y-axis direction.

[0115] Rotating component 200 can be Figure 2 The rotating shaft assembly 40 shown includes any one of the first rotating member 46, the second rotating member 47, and the third rotating member 48, and the rotating member 200 is movably connected to the base 100 using a virtual rotating shaft connection method. For example, the rotating member 200 is the first rotating member 46.

[0116] The rotating member 200 is configured to rotate about the base 100. The number of rotating members 200 can include multiple sets, with each set comprising two rotating members 200. The two rotating members 200 in the same set are located on opposite sides of the base 100 along the y-axis, and the structure of the two rotating members 200 in the same set is symmetrical with respect to the axial direction. It should be noted that this document only exemplifies the structure of one set of rotating members 200.

[0117] It should be noted that the pivot mechanism may also include a first connecting member, a second connecting member, a first door panel, and a second door panel, etc., the corresponding structures are not shown in the figure. The function and structure of the first connecting member and the second connecting member are similar to those of the first connecting member and the second connecting member. Figure 2 The left connector 44 and right connector 45 of the pivot assembly 40 shown are the same; the functions and structures of the first door panel and the second door panel are the same. Figure 2 The left door panel 42 and right door panel 43 of the pivot assembly 40 shown are identical. The connection relationships between the first connector, the second connector, the first door panel, and the second door panel and the base 100 and the rotating member 200, as well as their connection relationships with the body and display screen 30 of the foldable electronic device, can all be referred to... Figure 2 The contents of the rotating shaft assembly 40 shown are not described in detail here.

[0118] Figure 12 yes Figure 11 The first structural schematic diagram of the BB section. Figure 12 Only the structure of the base 100 is shown.

[0119] like Figure 12 As shown, in some embodiments, the base 100 may include a groove 101 and a first stop portion 102.

[0120] It should be noted that the structure of the base 100 is symmetrical with respect to the y-axis direction. That is, the base 100 includes two sliding grooves 101 and two first stop portions 102. The structures of the two sliding grooves 101 and the two first stop portions 102 are symmetrical with respect to the y-axis direction. This article uses the structure of one sliding groove 101 and one first stop portion 102 as an example to illustrate its structural characteristics.

[0121] The slide groove 101 is located at the middle position of the base 100 along the z-axis. The slide groove 101 serves as a guide to facilitate the rotation of the rotating member 200 around the base 100 and to constrain the rotation angle of the rotating member 200.

[0122] The slide groove 101 can be an arc groove, and the slide groove 101 includes a first slide groove surface 101a and a second slide groove surface 101b that are opposite each other. Both the first slide groove surface 101a and the second slide groove surface 101b are arc surfaces and have the same center. For example, the first slide groove surface 101a can be located at one end adjacent to the display screen 30, and the second slide groove surface 101b can be located at one end away from the display screen 30, or vice versa.

[0123] The first stop portion 102 is located within the slide groove 101 and at one end near the external environment. The first stop portion 102 is located on the first slide groove surface 101a and protrudes toward the second slide groove surface 101b. The slide groove 101 includes a front end and a rear end along the x-axis direction; the front end faces the interior of the base 100, and the rear end faces the end of the base 100 near the external environment. The first stop portion 102 is located at the end near the external environment to prevent the rotating member 200 from continuing to rotate in the rotation direction when folded.

[0124] In some embodiments, the base 100 may include a support plate 103, a bracket 104, and a shaft cover 105, wherein the support plate 103, the bracket 104, and the shaft cover 105 are stacked and connected along the z-axis direction.

[0125] The shaft cover 105 is located on the back side of the bracket 104. The back side of the bracket 104 refers to the side of the bracket 104 that faces away from the display screen 30. The shaft cover 105 serves as the outer casing of the hinge mechanism, covering the bracket 104 and the moving parts connected to the bracket 104 (such as various sets of rotating parts) within the hinge mechanism. This ensures the appearance of the foldable electronic device and prevents external interference from affecting the relative movement between the moving parts within the hinge mechanism and the bracket 104.

[0126] The bracket 104 is used to provide a positional reference within the pivot mechanism and to enable movable connections with various moving parts, so that the foldable electronic device can move between an unfolded state and a folded state.

[0127] The support plate 103 is located on the side of the bracket 104 opposite to the shaft cover 105, and the front of the support plate 103 is used to mount the display screen 30 of the foldable electronic device. Figure 2 The support plate 103 is located between the first door panel and the second door panel, and in the unfolded state, the first door panel, the second door panel and the support plate 103 are in a horizontal state to jointly support the display screen 30.

[0128] The slide 101 is located between the support plate 103 and the bracket 104. One of the first slide surface 101a and the second slide surface 101b is located on the support plate 103, and the other is located on the bracket 104. For example, as shown... Figure 12In the structure shown, the first slide surface 101a is located on the support plate 103, and the first slide surface 101a is the surface of the support plate 103 facing the bracket 104; the second slide surface 101b is located on the bracket 104, and the second slide surface 101b is the surface of the bracket 104 facing the support plate 103.

[0129] Figure 13 yes Figure 11 The second structural schematic diagram of section BB in the middle. Among them, Figure 13 The structure is shown in its unfolded state.

[0130] like Figure 13 As shown, the rotating member 200 includes a rotating part 201 and a connecting part 203 connected to each other. One end of the rotating part 201 is engaged with the base 100 for rotation, and the other end of the rotating part 201 is connected to one end of the connecting part 203. The other end of the connecting part 203 is connected to a connector. For example, the connecting part 203 and the connector can be rotatably connected by a pin.

[0131] The rotating member 200 may further include a second stop portion 202, which is located along the x-axis at the end of the rotating member 201 opposite to the connecting portion 203. For example, the second stop portion 202 is located at the end of the rotating member 201 facing inwards towards the base 100. The rotating member 201 and the second stop portion 202 are located within the slide groove 101, and when the rotating member 201 slides within the slide groove 101, the second stop portion 202 moves in accordance with the rotation of the rotating member 201.

[0132] The rotating part 201 may include a first sliding surface 201a and a second sliding surface 201b facing away from each other. The first sliding surface 201a faces the first slide groove surface 101a, and the second sliding surface 201b faces the second slide groove surface 101b. The second stop part 202 is located on the first sliding surface 201a and protrudes towards the first slide groove surface 101a; the protruding top end 2021 of the second stop part 202 slides in cooperation with the first slide groove surface 101a.

[0133] It is understood that the second stop portion 202 and the first stop portion 102 protrude towards each other in the slide groove 101 and are offset along the x-axis so that when the rotating member 200 rotates around the base 100, the second stop portion 202 and the first stop portion 102 can abut and remain in abutting state.

[0134] Combination Figure 12 and Figure 13As shown, when the rotating shaft mechanism is in the unfolded state, the rotating part 201 of the rotating member 200 is fully embedded in the slide groove 101, and the second stop parts 202 on the two rotating members 200 are opposite to each other and close to each other. The second sliding surface 201b of the rotating part 201 is opposite to and slides in cooperation with the second slide groove surface 101b of the slide groove 101, and the first sliding surface 201a of the rotating part 201 is opposite to and at a certain distance from the first slide groove surface 101a of the slide groove 101, which is greater than or equal to the protrusion height of the second stop part 202.

[0135] Figure 14 yes Figure 11 The third structural schematic diagram of the BB section. Among them, Figure 14 The structure is shown in a folded state.

[0136] Combination Figure 12 and Figure 14 As shown, when the rotating shaft mechanism switches between the unfolded state and the folded state, the rotating part 201 of the rotating member 200 slides in the slide groove 101 of the base 100, the protruding top end 2021 of the second stop part 202 slides in cooperation with the first slide groove surface 101a, and the second sliding surface 201b slides in cooperation with the second slide groove surface 101b, thereby realizing the rotation of the rotating member 200 around the base 100.

[0137] When the rotating shaft mechanism rotates from the unfolded state to the folded state, the two rotating members 200 rotate to a relative state, and the first stop part 102 and the second stop part 202 abut against each other to prevent the rotating members 200 from continuing to move in the sliding direction.

[0138] The rotating shaft mechanism provided in this embodiment has a first stop portion 102 on the base 100, specifically, the first stop portion 102 is disposed on the support plate 103; the rotating part 201 of the rotating member 200 has a second stop portion 202, and the first stop portion 102 and the second stop portion 202 form a set of anti-detachment stop structures. With the trend of thinning and narrowing of rotating shaft mechanisms, the anti-detachment stop structure formed by the support plate 103 and the rotating member 200 allows for sufficient overlap between the rotating member 200 and the support plate 103 in the folded state. This not only allows the rotating member 200 to maintain its folded state but also increases the stop area, preventing the rotating member 200 from detaching from the base 100 when subjected to external force in the folded state. The first stop portion 102 and the second stop portion 202 protrude towards each other within the groove 101, without occupying the dimensions of the base 100 along the z-axis, and eliminates the need for clearance grooves on the bracket 104, thereby ensuring the structural strength of the bracket 104. This not only achieves the function of preventing slippage and stopping, but also increases the strength of the rotating shaft mechanism to ensure its normal opening and closing and improve the user experience.

[0139] In some embodiments, the rotating shaft mechanism may include multiple sets of anti-detachment stop structures to increase the stop area and improve the anti-detachment stop effect.

[0140] Figure 15A This is a first structural schematic diagram of the support plate provided in an embodiment of this application. Wherein, Figure 15A The front and back structures of the support plate are shown.

[0141] like Figure 15A As shown in (a), the support plate 103 may include a central beam structure 1031 and two support beam structures 1032. The central beam structure 1031 is located between the two support beam structures 1032 along the x-axis direction. The length direction of the central beam structure 1031 and the length direction of the support beam structures 1032 are both parallel to the y-axis direction.

[0142] A plurality of through holes 1033 are provided between the central beam structure 1031 and the two supporting beam structures 1032. For example, the number of through holes 1033 is four. Two through holes 1033 are spaced apart along the y-axis between the central beam structure 1031 and one of the supporting beam structures 1032, and the other two through holes 1033 are spaced apart along the y-axis between the central beam structure 1031 and the other supporting beam structure 1032. The structure of the two through holes 1033 arranged along the x-axis is symmetrical with respect to the y-axis direction. The through holes 1033 are used to avoid the end of the rotating part 201 of the rotating member 200 in the unfolded state.

[0143] Combination Figure 13 and Figure 15A In (a), when the rotating shaft mechanism is in the unfolded state, one end of the rotating part 201 of the two rotating parts 200 corresponds one-to-one with the through hole 1033 on the support plate 103. That is to say, the second stop part 202 on the two rotating parts 201 corresponds one-to-one with the through hole 1033 on the support plate 103, and passes through the corresponding through hole 1033.

[0144] The second stop portions 202 of the two rotating parts 200 extend in opposite directions, and the two rotating parts 201 have a certain gap in the x-axis direction to avoid interference between them. In this way, the two second stop portions 202 do not excessively occupy the width space of the central beam structure 1031 of the support plate 103, and the central beam structure 1031 does not need to excessively avoid the two second stop portions 202, allowing the central beam structure 1031 to have a certain width W1, thereby improving the structural strength of the support plate 103. Wherein, this width W1 is greater than... Figure 9A The width W0 shown is...

[0145] like Figure 15A As shown in (b), the back side of the support beam structure 1032 includes a rotational fitting structure 1034 and two first stop portions 102. Figure 12The back side of the support beam structure 1032 faces the bracket 104, and the back side of the support beam structure 1032 is used to form the first groove surface 101a of the groove 101.

[0146] The two support beam structures 1032 are symmetrical with respect to the y-axis. It can be understood that the support plate 103 includes two rotational fitting structures 1034 and four first stop parts 102.

[0147] Figure 15B This is a second structural schematic diagram of the support plate provided in the embodiments of this application.

[0148] Combination Figure 15A (b) and Figure 15B The rotating fit structure 1034 is located between two through holes 1033 on the same side. Figure 12 The rotating engagement structure 1034 protrudes towards the bracket 104 relative to the first sliding surface 101a of the support beam structure 1032. The rotating engagement structure 1034 includes an arc engagement surface 1034a, which is an arc structure. The arc engagement surface 1034a is configured to engage and slide with the first sliding surface 201a of the rotating member 200, thereby realizing the rotation of the rotating member 200 around the base 100.

[0149] Two first stop portions 102 located on the same side along the y-axis are located on the first slide surface 101a of the support beam structure 1032 on that side, and are spaced apart at opposite ends of the rotational fitting structure 1034 on that side.

[0150] For example, the two first stop portions 102 arranged along the y-axis on the left are located on the first slide surface 101a of the left support beam structure 1032, and are spaced apart at opposite ends of the left rotational engagement structure 1034. The two first stop portions 102 arranged along the y-axis on the right are located on the first slide surface 101a of the right support beam structure 1032, and are spaced apart at opposite ends of the right rotational engagement structure 1034.

[0151] Figure 16 This is the first structural schematic diagram of the rotating component provided in the embodiments of this application.

[0152] like Figure 16 As shown in (a) and (b), in some embodiments, the rotating member 200 may include a plurality of second stop portions 202. For example, the rotating member 200 includes two second stop portions 202. It is understood that two rotating members 200 in the same group include four second stop portions 202. The four second stop portions 202 correspond one-to-one with the four first stop portions 102 on the support plate 103, and the one-to-one correspondence of the first stop portions 102 and the second stop portions 202 forms a set of anti-detachment stop structures.

[0153] Taking the structure of a rotating component 200 as an example, the rotating part 201 of the rotating component 200 may further include two first rotating structures 204, which are located at opposite ends of the rotating part 201 along the y-axis. Each first rotating structure 204 extends outward along the y-axis relative to the first sliding surface 201a and has a certain height along the z-axis.

[0154] Two second stop portions 202 are spaced apart on the rotating portion 201 along the y-axis direction and are located on two opposing side walls of the two first rotating structures 204.

[0155] Thus, the two second stop portions 202 are located in the middle region of the rotating part 201 along the y-axis direction, and the two second stop portions 202 protrude towards each other along the y-axis direction. When the rotating member 200 is subjected to force, multiple anti-detachment stop areas can be formed to improve the anti-detachment stop effect.

[0156] Figure 17 This is a first structural schematic diagram of the rotating component and bracket provided in an embodiment of this application. Wherein, Figure 17 The structure is shown in a folded state.

[0157] like Figure 17 As shown, in some embodiments, when the pivot mechanism rotates from the unfolded state to the folded state, combined with Figure 14 Each rotating member 200 has two second stop portions 202 that abut against two corresponding first stop portions 102 on the support plate 103 to prevent the corresponding rotating member 200 from continuing to move along its sliding direction.

[0158] In this embodiment of the application, multiple sets of anti-detachment stop structures (such as...) are added to the rotating shaft mechanism. Figure 17 The A1 and A2 regions are staggered along the y-axis (axial direction) to increase the stopping area. Each set of anti-detachment stopping structures is not only located at one end of the rotating part 201, but can also be located in the middle region of the rotating part 201 to form a multi-position anti-detachment stopping area, improving the anti-detachment stopping effect. In this way, during the switching between the folded and unfolded states of the rotating shaft mechanism, or when the foldable electronic device falls, or when the rotating part 200 is subjected to an oblique force in the folded state, the rotating part 200 will not detach from between the bracket 104 and the support plate 103, thus avoiding affecting the opening and closing of the rotating shaft mechanism.

[0159] In some embodiments, the bracket 104 includes a surface facing the rotator 200, the surface being used to form a second groove surface 101b of the groove 101.

[0160] The support 104 may further include four second rotating structures 1041, which are located on the second slide surface 101b and arranged in a rectangular array. Along the y-axis, two second rotating structures 1041 on the same side are spaced apart on opposite sides of the second slide surface 101b on that side, and two second rotating structures 1041 on the other side are spaced apart on opposite sides of the second slide surface 101b on that side.

[0161] Two second rotating structures 1041 located on the same side along the y-axis are opposite each other, and two second rotating structures 1041 located on the same side along the x-axis are opposite each other. The length direction of the second rotating structure 1041 is parallel to the x-axis direction.

[0162] The two rotating components 200 in the same group include four first rotating structures 204, which correspond one-to-one with four second rotating structures 1041. The one-to-one correspondence between the first rotating structures 204 and the second rotating structures 1041 achieves arc-shaped rotation, thereby realizing the rotation of the rotating component 200 relative to the support 104.

[0163] The first rotating structure 204 and the second rotating structure 1041 can achieve arc-shaped rotation by using a circular arc groove and slider engagement. For example, the first rotating structure 204 can form a circular arc groove, and the second rotating structure 1041 can be a slider; or, the first rotating structure 204 can be a slider, and the second rotating structure 1041 can form a circular arc groove. The slider is embedded in the circular arc groove, and the slider is configured to slide along the circular arc groove when the rotating shaft mechanism rotates.

[0164] This article uses the first rotating structure 204 as a slider and the second rotating structure 1041 forming an arc groove as an example for illustration. Both the arc groove and the slider are arc-shaped structures. The second rotating structure 1041 and the support beam structure 1032 of the support plate 103 form a rotating slide groove (e.g., Figure 25 The rotating slide 106 is a circular arc groove. The first rotating structure 204 of the rotating component 200 is embedded in the rotating slide. The rotating slide plays a guiding role so as to facilitate the rotation of the rotating component 200 around the support 104 and constrain the rotation angle of the rotating component 200.

[0165] The rotating shaft mechanism provided in this embodiment of the application has an anti-disengagement stop structure formed between the rotating member 200 and the support plate 103, so that no additional components are required on the bracket 104. Figure 7 The clearance groove 4122 shown eliminates the height difference h0 between the clearance groove 4122 and the arc-shaped sliding surface 412a. In this way, the thickness of the bracket 104 at the clearance groove 4122 is not reduced, and the structural strength of the bracket 104 can be improved.

[0166] It should be noted that the multiple anti-detachment stop structures in the rotating shaft mechanism have the same structural characteristics. The following text will only take one set of anti-detachment stop structures as an example to illustrate the structural characteristics of the anti-detachment stop structure.

[0167] Figure 18 This is a first partially exploded structural diagram of the rotating shaft mechanism provided in the embodiments of this application. Wherein, Figure 18 The structure is shown in its unfolded state.

[0168] like Figure 18 As shown, in some embodiments, the first stop portion 102 includes a first mating surface 102a and a first end surface 102b facing away from each other. The first mating surface 102a and the first end surface 102b are connected at a preset angle to form a protruding tip (not shown in the figure) protruding toward the first sliding surface 201a. The first mating surface 102a is located at the end of the first stop portion 102 facing away from the external environment, and the first end surface 102b is located at the end of the first stop portion 102 facing the external environment. That is, the first mating surface 102a faces the interior of the base 100, and the first end surface 102b faces the external environment.

[0169] The first mating surface 102a is connected to the first sliding surface 101a, and the connection position of the first mating surface 102a and the first sliding surface 101a forms the first position D1.

[0170] The base 100 also includes a first surface 100a, which is opposite to the first slide surface 101a. For example, the first surface 100a is the surface of the support plate 103 that is opposite to the first slide surface 101a.

[0171] Along the z-axis, the first position D1 of the first sliding groove surface 101a and the first surface 100a have a first distance L1; wherein the first distance L1 is greater than or equal to 0.25mm. In this way, it can be ensured that the support plate 103 has sufficient strength when it is engaged with the rotating part 200 to prevent it from falling off, thus avoiding the support plate 103 from breaking.

[0172] The first end face 102b is an arc surface, combined with Figure 15B The first end face 102b is coplanar with the arc mating surface 1034a of the rotating mating structure 1034, so as to ensure that the first stop part 102 and the rotating mating structure 1034 together rotate with the rotating part 201 of the rotating member 200.

[0173] There is a gap between the first end face 102b and the first sliding surface 201a. This gap can be zero or an assembly gap. When the rotating part 201 of the rotating member 200 rotates around the support plate 103, the first end face 102b is configured to slide in cooperation with the first sliding surface 201a of the rotating part 201.

[0174] In some embodiments, the second stop portion 202 includes a second mating surface 202a and a second end surface 202b that are opposite to each other. The second mating surface 202a and the second end surface 202b are connected at a preset angle to form a protruding top end 2021 that protrudes toward the first slide groove surface 101a.

[0175] The second mating surface 202a is located at the end of the second stop portion 202 facing the external environment, and the first mating surface 102a is opposite to the second mating surface 202a. When the rotating shaft mechanism is in the unfolded state, there is a gap between the first mating surface 102a and the second mating surface 202a; the second end face 202b is coplanar with the first surface 100a.

[0176] The second mating surface 202a is connected to the first sliding surface 201a, and the connection position of the second mating surface 202a and the first sliding surface 201a forms a second position D2. There is a second distance L2 between the second position D2 of the second mating surface 202a and the second end face 202b; wherein the second distance L2 is greater than or equal to 0.25mm.

[0177] This ensures that the rotating part 200 has sufficient strength to prevent breakage when it engages with the support plate 103 to prevent detachment.

[0178] Figure 19 This is a second partially exploded structural diagram of the rotating shaft mechanism provided in an embodiment of this application. Wherein, Figure 19 The structure is shown in a folded state.

[0179] like Figure 19 As shown, when the rotating shaft mechanism is rotated to the folded state, the first end face 102b of the first stop part 102 faces the first sliding surface 201a of the rotating part 201, and the second end face 202b of the second stop part 202 faces the interior of the base 100.

[0180] The first mating surface 102a of the first stop portion 102 abuts against the second mating surface 202a of the second stop portion 202, and the first mating surface 102a and the second mating surface 202a are parallel.

[0181] In this way, when the rotating shaft mechanism rotates to the folded state, the first mating surface 102a of the first stop portion 102 on the support plate 103 abuts against the second mating surface 202a of the second stop portion 202 on the rotating member 200, which increases the contact area of ​​the first mating surface 102a and the second mating surface 202a, that is, increases the stop area. Furthermore, this allows the rotating member 200 to maintain its folded state and prevents it from detaching from the base 100 when subjected to external force, thus improving the anti-detachment and stop effect.

[0182] During contact, the first mating surface 102a and the second mating surface 202a are not mated; or, the first mating surface 102a and the second mating surface 202a are interference fits, for example, the interference between the first mating surface 102a and the second mating surface 202a is 0.02mm. This can further improve the anti-detachment and locking effect.

[0183] In some embodiments, when the rotating shaft mechanism is in a folded state, the first mating surface 102a and the second mating surface 202a have a target overlap amount L0, which refers to the contact surface length of the first mating surface 102a and the second mating surface 202a. The target overlap amount L0 is greater than or equal to 0.3 mm.

[0184] In this way, by increasing the overlap of the first stop part 102 and the second stop part 202 in the folded state, the stop area of ​​the anti-detachment stop structure can be increased. This not only ensures that the rotating part 200 can remain in the folded state, but also makes it difficult for the rotating part 200 to come out of the support plate 103 during rotation, thus improving the anti-detachment stop effect.

[0185] In some embodiments, the slide 101 is an arc groove with a center O, and the plane passing through the center O is defined as the slide center plane 101c. The slide center plane 101c is parallel to the width direction of the rotating shaft mechanism, that is, the slide center plane 101c is parallel to the x-axis direction.

[0186] The first mating surface 102a of the first stop portion 102 is connected to the first sliding surface 101a of the sliding groove 101 at a preset angle. The first mating surface 102a is inclined relative to the first sliding surface 101a, and the extension direction O1 of the first mating surface 102a passes through the center of the circle. Correspondingly, the extension direction O2 of the second mating surface 202a of the second stop portion 202 passes through the center of the circle. In the folded state, the extension direction O1 of the first mating surface 102a is parallel to the extension direction O2 of the second mating surface 202a.

[0187] The extension direction O1 of the first mating surface 102a forms a first included angle α1 with the center plane 101c of the slide groove; when the rotating shaft mechanism is in the folded state, the extension direction O2 of the second mating surface 202a forms a first included angle α1 with the center plane 101c of the slide groove. The range of the first included angle α1 is 0° to 90°, preferably 0° to 60°.

[0188] In this way, the inclination of the first mating surface 102a and the second mating surface 202a can be determined according to the first included angle α1, thereby increasing the overlap of the first mating surface 102a and the second mating surface 202a, so as to increase the stopping area of ​​the anti-detachment and stopping structure, and thus improve the anti-detachment and stopping effect.

[0189] Figure 20This is a third partially exploded structural diagram of the rotating shaft mechanism provided in the embodiments of this application. Wherein, Figure 20 The structure is shown in a folded state.

[0190] like Figure 20 As shown, in some embodiments, with Figure 19 The difference between the structures shown is that the extension direction O1 of the first mating surface 102a does not pass through the center O; and the extension direction O2 of the second mating surface 202a does not pass through the center O.

[0191] The extension direction O1 of the first mating surface 202a forms a second included angle α2 with the center plane 101c of the slide groove; when the rotating shaft mechanism is in the folded state, the extension direction O2 of the second mating surface 202a forms a second included angle α2 with the center plane 101c of the slide groove. The range of the second included angle α2 is 0° to 90°, preferably 0° to 60°.

[0192] In this way, the inclination of the first mating surface 102a and the second mating surface 202a can be determined according to the second included angle α2, thereby increasing the overlap of the first mating surface 102a and the second mating surface 202a, increasing the stopping area of ​​the anti-detachment and stopping structure, and thus improving the anti-detachment and stopping effect.

[0193] Figure 21 This is the fourth partially exploded structural diagram of the rotating shaft mechanism provided in the embodiments of this application. Wherein, Figure 21 The structure is shown in a folded state.

[0194] like Figure 21 As shown, in some embodiments, with Figure 19 The difference in the structure shown is that the extension direction O1 of the first mating surface 102a does not pass through the center O; the extension direction O2 of the second mating surface 202a does not pass through the center O. Also, the extension direction O1 of the first mating surface 102a does not form an angle with the center plane 101c of the groove.

[0195] In this scenario, the extension direction O1 of the first mating surface 102a is parallel to the central plane 101c of the slide groove. Correspondingly, when the rotating shaft mechanism is in the folded state, the extension direction O2 of the second mating surface 202a does not form an angle with the central plane 101c of the slide groove, and the extension direction O2 of the second mating surface 202a is parallel to the central plane 101c of the slide groove.

[0196] This increases the overlap between the first mating surface 102a and the second mating surface 202a, thereby increasing the stopping area of ​​the anti-detachment and stopping structure and improving the anti-detachment and stopping effect.

[0197] It should be noted that, regardless of whether the extension direction O1 of the first mating surface 102a passes through the center of the circle, and whether the extension direction O1 of the first mating surface 102a forms an angle with the sliding groove center plane 101c, the inclination of the first mating surface 102a must be set on the premise that the first position D1 of the first sliding groove surface 101a and the first surface 100a have a first distance L1, so as to ensure that the support plate 103 meets the strength requirements and the anti-disengagement and positioning function.

[0198] Figure 22 This is a second structural schematic diagram of the rotating component provided in the embodiments of this application.

[0199] like Figure 22 As shown in (a) and (b), in some embodiments, in Figure 16 Based on the structure of the rotating member 200 shown, the rotating member 200 may also include a protrusion 205.

[0200] The protrusion 205 is located at one end of the rotating part 201 along the y-axis direction and at the connection position between the first rotating structure 204 and the rotating part 201. The protrusion 205 has a protruding length L3 relative to the rotating part 201 along the x-axis direction.

[0201] The protrusion 205 has the function of preventing disengagement, so as to prevent the rotating member 200 from disengaging from the bracket 104 when the rotating shaft mechanism rotates, and, together with the cooperation of the first stop part 102 and the second stop part 202, to maintain the rotating position of the rotating member 200 relative to the bracket 104 and the support plate 103 in the folded state.

[0202] Figure 23 This is a second structural schematic diagram of the rotating component and bracket provided in an embodiment of this application. Wherein, Figure 23 The structure is shown in a folded state.

[0203] like Figure 23 As shown, in some embodiments, the bracket 104 may further include two grooves 1042, which are spaced apart along the x-axis and are located one-to-one with one side of the two second rotating structures 1041 arranged along the x-axis of the bracket 104. The groove 1042 is adjacent to the corresponding second sliding surface 101b. In the z-axis direction, the bottom surface of the groove 1042 (not shown in the figure) is lower than the second sliding surface 101b, forming a height difference h3. It can be understood that the groove 1042 is formed by the depth h3 of the second sliding surface 101b recessed along the z-axis.

[0204] To avoid occupying the internal space of the rotating shaft mechanism, the groove 1042 is located at the end of the bracket 104 along the y-axis direction closer to the external environment. Figure 23(Right side of the bracket 104). In other embodiments, the groove 1042 may also be simultaneously positioned near the middle of the bracket 104 along the y-axis ( Figure 23 (On the left side of the middle), correspondingly, the rotating part 200 includes two protrusions 205, which are located on the two first rotating structures 204 respectively, and the two protrusions 205 correspond one-to-one with the two grooves 1042.

[0205] The rotating part 201 of the rotating member 200 is disposed between two second rotating structures 1041 located on the same side along the y-axis direction. The protrusion 205 of the rotating member 200 is embedded in the groove 1042 of the bracket 104. The two first rotating structures 204 of the rotating member 200 correspond one-to-one with the two second rotating structures 1041 of the bracket 104 and slide together.

[0206] When the rotating shaft mechanism rotates, the rotating part 201 slides along the second sliding groove surface 101b on the bracket 104, the protrusion 205 slides in the groove 1042, and the first rotating structure 204 and the second rotating structure 1041 cooperate to rotate. In this way, the rotating part 200 can be rotated relative to the bracket 104.

[0207] The rotating shaft mechanism provided in this application embodiment can form at least three sets of anti-detachment stop structures on a rotating member 200. For example, two sets of anti-detachment stop structures are formed by two second stop portions 202 on the rotating member 200 and two opposing first stop portions 102 on the support plate 103 (e.g. Figure 23 The A1 and A2 regions in the image), and a set of anti-detachment stop structures formed by the protrusion 205 on the rotating member 200 and the groove 1042 on the bracket 104 (such as... Figure 23 (Area A3 in the diagram). Three sets of anti-detachment stop structures are staggered along the axial direction (y-axis direction) to form multi-position anti-detachment stops, increasing the stop area between the rotating part 200 and the base 100, and ensuring sufficient overlap between the rotating part 200 and the support plate 103 and bracket 104 in the folded state. The joint anti-detachment stop of the rotating part 200 and the support plate 103, as well as the rotating part 200 and the bracket 104, further enhances the anti-detachment stop effect. In this way, during the switching between the folded and unfolded states of the rotating shaft mechanism, or when the foldable electronic device is dropped, or when the rotating part 200 is subjected to an oblique force, the rotating part 200 will not detach from between the bracket 104 and the support plate 103, thus avoiding affecting the opening and closing of the rotating shaft mechanism.

[0208] Figure 24 This is a second structural schematic diagram of the rotating shaft mechanism provided in the embodiments of this application; Figure 25 yes Figure 24 A schematic diagram of the CC section. Wherein, Figure 24 and Figure 25The structure is shown in its unfolded state.

[0209] like Figure 24 and 25 As shown, in some embodiments, the protrusion 205 of the rotating member 200 is embedded in the groove 1042 of the bracket 104, and the two first rotating structures 204 of the rotating member 200 correspond one-to-one with the two second rotating structures 1041 of the bracket 104 and rotate in cooperation.

[0210] The surface of the support beam structure 1032 of the support plate 103 facing the bracket 104 is an arc surface, and the second rotating structure 1041 of the bracket 104 is also an arc structure. The second rotating structure 1041 and the support beam structure 1032 form a rotating groove 106. The rotating groove 106 and the groove 101 are connected along the y-axis and work together to guide the rotation of the rotating component 200 around the base 100.

[0211] The two rotating grooves 106 are symmetrical along the y-axis, and each of the two rotating grooves 106 corresponds to one of the two rotating components 200. The first rotating structure 204 of the rotating component 200 is embedded in the rotating groove 106 and can slide within the rotating groove 106 to realize the rotation of the rotating component 200 around the base 100.

[0212] When the rotating shaft mechanism is in the unfolded state, one end of the rotating part 201 of the two rotating members 200 corresponds one-to-one with the through hole 1033 of the support plate 103, and protrudes through the corresponding through hole 1033. The protrusions 205 of the two rotating members 200 extend in opposite directions and have a certain gap in the x-axis direction to avoid interference between them.

[0213] Combination Figure 22 and Figure 25 The protrusion length L3 of the protrusion 205 is less than Figure 5 The stop length of the stop structure 463 relative to the rotating structure 461, in the unfolded state, means that the central beam structure 1031 on the support plate 103 does not need to excessively avoid the protrusion 205 on the rotating member 200, so that the central beam structure 1031 has a width W2. This width W2 is less than... Figure 15A The width W1 shown is greater than Figure 9A The width W0 is shown. That is to say, the protrusion length L3 of the protrusion 205 can be set according to the width W2 of the middle beam structure 1031, while ensuring its own strength. In this way, it can ensure that the strength of the support plate 103 meets the requirements, and the protrusion 205 on the rotating member 200 can cooperate with the bracket 104 and the support plate 103 to prevent detachment.

[0214] Combination Figure 22 , Figure 23 and Figure 25The height difference h3 formed by the groove 1042 and the second sliding surface 101b is less than Figure 6 The height difference h0 between the bottom surface of the relief groove 4122 and the arc-shaped sliding surface 412a, and the small protrusion length L3 of the protrusion 205, mean that the groove 1042 does not need to excessively avoid the protrusion 205, and the depth of the groove 1042 is small, thus allowing the bracket 104 to still have a certain wall thickness at the groove 1042. Specifically, the bracket 104 has a wall thickness h4 between the bottom surface of the groove 1042 and the bottom surface of the bracket 104, and a wall thickness h5 between the tail end of the groove 1042 and the outer edge of the bracket 104.

[0215] Wall thickness h4 is greater than Figure 9A The wall thickness h1 between the bottom surface of the clearance groove 4122 and the bottom surface of the fixed bracket 412 shown, and the wall thickness h5 are greater than Figure 9A The wall thickness h2 between the tail end of the clearance groove 4122 and the outer edge of the fixed bracket 412 is shown. In other words, when the bracket 104 avoids the protrusion 205 through the groove 1042, it does not need to excessively reduce its wall thickness at the groove 1042, allowing the bracket 104 to still maintain a certain strength. This ensures that the bracket 104's own strength meets the requirements, and also allows the protrusion 205 on the rotating member 200 to cooperate with the bracket 104 for anti-disengagement and positioning.

[0216] The rotating shaft mechanism provided in this application increases the overlap between the rotating component 200 and the support plate 103 and bracket 104 in the folded state by adding multiple sets of anti-detachment stop structures, thereby increasing the stop area and preventing the rotating component 200 from easily detaching from the base 100 during rotation. When using the protrusion 205 to achieve the anti-detachment stop, the length of the protrusion 205 can be reduced to minimize the impact on the strength of the bracket 104 and support plate 103, ensuring that the strength of the bracket 104 and support plate 103 meets the requirements. This rotating shaft mechanism is simple to process and install, and has low cost.

[0217] See you again Figure 1 This application also provides a foldable electronic device, including a display screen 30, a first body 10, a second body 20, and a hinge mechanism as provided in any of the foregoing embodiments.

[0218] The first body 10 and the second body 20 are located on opposite sides of the axis of the rotating shaft mechanism. The first body 10 and the second body 20 are respectively connected to the rotating shaft mechanism. The display screen 30 covers the first body 10, the second body 20 and the rotating shaft mechanism. The first body 10 and the second body 20 rotate as the rotating shaft mechanism folds or unfolds, so as to drive the display screen 30 to fold or unfold.

[0219] It should be noted that the structure of foldable electronic devices can be referenced. Figure 1The structure of the foldable electronic device shown is not described in detail here.

[0220] The foldable electronic device provided in this application embodiment includes a hinge mechanism comprising multiple sets of anti-detachment stop structures. While foldable electronic devices are becoming increasingly thinner and lighter, the hinge mechanism maintains sufficient structural strength even with its size reduced. During hinge rotation, the anti-detachment stop structures prevent the rotating component 200 from detaching from the base 100, ensuring the hinge mechanism's opening and closing, enabling the foldable electronic device to function normally, and improving the user experience.

[0221] It should be noted that those skilled in the art, upon considering the specification and practicing the application disclosed herein, will readily conceive of other embodiments of this application. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope of this application is indicated by the following claims.

[0222] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A rotating shaft mechanism, characterized in that, include: The base (100) includes a groove (101) and a first stop (102), the first stop (102) being located within the groove (101) and at one end close to the external environment; The rotating component (200) includes a rotating part (201) and a second stop part (202), the second stop part (202) being located at the end of the rotating part (201), and the rotating part (201) and the second stop part (202) being located within the slide groove (101); When the rotating shaft mechanism rotates from the unfolded state to the folded state, the rotating part (201) slides in the slide groove (101) so that the first stop part (102) and the second stop part (202) abut against each other to prevent the rotating part (200) from continuing to move in the sliding direction.

2. The rotating shaft mechanism according to claim 1, characterized in that, The slide (101) includes a first slide surface (101a) and a second slide surface (101b) that are opposite each other; The first stop portion (102) is located at the end of the first slide surface (101a) that is closer to the external environment and protrudes toward the second slide surface (101b).

3. The rotating shaft mechanism according to claim 2, characterized in that, The rotating part (201) includes a first sliding surface (201a) and a second sliding surface (201b) facing away from each other. The first sliding surface (201a) faces the first slide groove surface (101a), and the second sliding surface (201b) faces the second slide groove surface (101b). The second stop part (202) is located on the first sliding surface (201a) and protrudes towards the first slide groove surface (101a). When the rotating shaft mechanism switches between an unfolded state and a folded state, the protruding top end (2021) of the second stop part (202) slides in cooperation with the first slide groove surface (101a), and the second sliding surface (201b) slides in cooperation with the second slide groove surface (101b), thereby realizing the sliding of the rotating part (201) in the slide groove (101).

4. The rotating shaft mechanism according to claim 3, characterized in that, The first stop portion (102) includes a first mating surface (102a), which is located at the end of the first stop portion (102) that is away from the external environment, and the first mating surface (102a) is connected to the first slide surface (101a). The second stop portion (202) includes a second mating surface (202a), which is located at one end of the second stop portion (202) facing the external environment, and the second mating surface (202a) is connected to the first sliding surface (201a); The first mating surface (102a) is opposite to the second mating surface (202a).

5. The rotating shaft mechanism according to claim 4, characterized in that, When the rotating shaft mechanism is in the unfolded state, there is a gap between the first mating surface (102a) and the second mating surface (202a); When the rotating shaft mechanism is in the folded state, the first mating surface (102a) abuts against and is parallel to the second mating surface (202a).

6. The rotating shaft mechanism according to claim 5, characterized in that, When the first mating surface (102a) abuts against the second mating surface (202a), the first mating surface (102a) and the second mating surface (202a) are not mated; or, The first mating surface (102a) and the second mating surface (202a) are interference fits.

7. The rotating shaft mechanism according to claim 6, characterized in that, When the rotating shaft mechanism is in the folded state, the first mating surface (102a) and the second mating surface (202a) have a target overlap amount; The target overlap is greater than or equal to 0.3 mm.

8. The rotating shaft mechanism according to claim 5, characterized in that, The groove (101) is an arc groove; The groove (101) includes a center and a groove center plane (101c) passing through the center, the groove center plane (101c) being parallel to the width direction of the rotating shaft mechanism.

9. The rotating shaft mechanism according to claim 8, characterized in that, The extension direction of the first mating surface (102a) passes through the center of the circle; The extension direction of the second mating surface (202a) passes through the center of the circle.

10. The rotating shaft mechanism according to claim 8, characterized in that, The extension direction of the first mating surface (102a) does not pass through the center of the circle; The extension direction of the second mating surface (202a) does not pass through the center of the circle.

11. The rotating shaft mechanism according to claim 9 or 10, characterized in that, The extension direction of the first mating surface (102a) forms an angle with the central plane (101c) of the groove; When the rotating shaft mechanism is in the folded state, the extension direction of the second mating surface (202a) forms the included angle with the central plane (101c) of the slide groove; The included angle ranges from 0° to 90°.

12. The rotating shaft mechanism according to claim 10, characterized in that, The extension direction of the first mating surface (102a) is parallel to the central plane (101c) of the groove; When the rotating shaft mechanism is in the folded state, the extension direction of the second mating surface (202a) is parallel to the central plane (101c) of the slide groove.

13. The rotating shaft mechanism according to claim 4, characterized in that, The first stop portion (102) also includes a first end face (102b) that is opposite to the first mating surface (102a); When the rotating shaft mechanism switches between an unfolded state and a folded state, the first end face (102b) slides in cooperation with the first sliding surface (201a) of the rotating part (201).

14. The rotating shaft mechanism according to claim 4, characterized in that, The base (100) further includes a first surface (100a) that faces away from the first groove surface (101a); The first position of the first groove surface (101a) is at a first distance from the first surface (100a); Wherein, the first position refers to the connection position between the first mating surface (102a) and the first sliding surface (101a), and the first distance is greater than or equal to 0.25mm.

15. The rotating shaft mechanism according to claim 14, characterized in that, The second stop portion (202) also includes a second end face (202b) that is opposite to the second mating surface (202a); When the rotating shaft mechanism is in the unfolded state, the second end face (202b) is coplanar with the first surface (100a); The second position of the second mating surface (202a) and the second end face (202b) have a second distance; The second position refers to the connection position between the second mating surface (202a) and the first sliding surface (201a), and the second distance is greater than or equal to 0.25mm.

16. The rotating shaft mechanism according to claim 1, characterized in that, The base (100) includes a plurality of first stop portions (102), which are located in the slide groove (101) and close to one end of the external environment. The plurality of first stop portions (102) are spaced apart along the axial direction of the rotating shaft mechanism. The rotating member (200) includes a plurality of second stop portions (202), which are spaced apart at the ends of the rotating member (201) along the axial direction of the rotating shaft mechanism. The plurality of first stop portions (102) correspond one-to-one with the plurality of second stop portions (202). When the rotating shaft mechanism rotates from the unfolded state to the folded state, the rotating part (201) slides in the slide groove (101) so that the corresponding first stop part (102) and second stop part (202) abut against each other to prevent the rotating part (200) from continuing to move along the sliding direction.

17. The rotating shaft mechanism according to claim 2, characterized in that, The base (100) includes a support plate (103) and a bracket (104) connected to each other; The slide (101) is located between the support plate (103) and the bracket (104), with one of the first slide surface (101a) and the second slide surface (101b) located on the support plate (103) and the other located on the bracket (104).

18. The rotating shaft mechanism according to claim 17, characterized in that, The support plate (103) includes a central beam structure (1031) and two support beam structures (1032), wherein the central beam structure (1031) is located between the two support beam structures (1032) along the width direction of the rotating shaft mechanism; When the first groove surface (101a) is located on the support plate (103), a plurality of first stop portions (102) are spaced apart on the first groove surface (101a) of the support beam structure (1032) facing the bracket (104).

19. A foldable electronic device, characterized in that, It includes a display screen, a first body, a second body, and a rotating shaft mechanism as described in any one of claims 1-18; The first fuselage and the second fuselage are located on opposite sides of the axis of the rotating shaft mechanism, and the first fuselage and the second fuselage are respectively connected to the rotating shaft mechanism; The display screen covers the first body, the second body, and the pivot mechanism. The first body and the second body rotate as the pivot mechanism folds or unfolds, thereby causing the display screen to fold or unfold.

Images