Rotating shaft mechanism, fixing assembly and electronic equipment

Abstract

The invention provides a rotating shaft mechanism, a fixing assembly and electronic equipment. The rotating shaft mechanism comprises the fixing assembly, a rotating assembly and a torsion assembly. The fixing assembly comprises a fixing base with a supporting face and a tensioning piece arranged on the supporting face, and the tensioning piece is in a tensioning state. The rotating assembly is rotationally connected with the fixed seat and is flattened with the fixed seat; the torsion assembly is arranged on the fixing base and abuts against and is meshed with the rotating assembly in the rotating shaft direction of the rotating assembly. By means of the arrangement, the torsion assembly can be used for providing a damping sense for rotation of the rotating assembly, the tensioning piece can be used for reducing the deformation amount of the fixing base due to the fact that the torsion assembly protrudes, and therefore it is guaranteed that the supporting face of the fixing base has enough flatness to support the display mechanism.

Description

Technical Field

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

[0002] With the continuous development and popularization of electronic devices, electronic devices have become an indispensable tool in people's daily life and work, and people's requirements for electronic devices are getting higher and higher. Taking mobile phones as an example, some manufacturers set a hinge structure and a flexible screen on the shell of the mobile phone, and the hinge structure can cooperate with the shell to support the flattened flexible screen, and can drive the shell and the flexible screen to fold, so that the mobile phone has a foldable function to meet the user's usage needs. At present, since the flatness of the support surface where the hinge structure contacts the flexible screen will directly affect the display effect (light and shadow and creases) of the flexible screen, how to ensure the flatness of the support surface where the hinge structure contacts the flexible screen has become the main focus of industry insiders. Summary of the invention

[0003] On the one hand, the present application provides a rotating shaft mechanism, which includes: a fixed component, a rotating component and a torsion component; the fixed component includes: a fixed seat with a support surface and a tensioning member arranged on the support surface, and the tensioning member is in a tensioned state; the rotating component is rotatably connected to the fixed seat and is flattened with the fixed seat; the torsion component is arranged on the fixed seat, and abuts and meshes with the rotating component in the direction of the rotating shaft of the rotating component.

[0004] On the other hand, the present application provides a fixing assembly, which includes: a fixing seat and a tensioning member; the fixing seat has a supporting surface, and the tensioning member is arranged on the supporting surface and is in a tensioned state.

[0005] On the other hand, the present application provides a rotating shaft mechanism, which includes: a rotating component and the above-mentioned fixed component; wherein the rotating component is flattened with the fixed seat and is rotatably connected to the fixed seat.

[0006] The present application also provides an electronic device, which includes: a shell mechanism and the above-mentioned rotating shaft mechanism; the shell mechanism has a first shell component and a second shell component divided along an axis; the fixed base is arranged between the first shell component and the second shell component along the axis; the rotating components are arranged on opposite sides of the fixed base parallel to the axis, and the first shell component and the second shell component are respectively connected to the rotating components on opposite sides of the fixed base.

[0007] The rotating shaft mechanism provided by the present application is provided with a torsion assembly on the fixed seat, and the rotating assembly rotatably connected to the fixed seat is also in contact with and meshed with the torsion assembly, so that when the rotating assembly rotates around the fixed seat, the torsion assembly can generate torsion to provide a damping feeling for the rotation of the rotating assembly. At the same time, since the torsion generated by the torsion assembly will also act on the fixed seat when the rotating assembly and the fixed seat are flattened, a tensioning member in a tensioned state is provided on the support surface of the fixed seat, and the tensioning member can apply tension to the fixed seat to offset at least part of the torsion applied by the torsion assembly on the fixed seat, so that the convex deformation of the fixed seat in the direction away from the support surface of the tensioning member due to the torsion can be limited by the tensioning member. In this way, not only can the torsion assembly be used to provide a damping feeling for the rotation of the rotating assembly, but the tensioning member can also be used to reduce the deformation of the fixed seat due to the convex deformation of the torsion assembly, thereby ensuring that the support surface of the fixed seat has sufficient flatness to support the display mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0009] Figure 1 is a schematic structural diagram of an electronic device 10 provided in an embodiment of the present application in a flattened state;

[0010] Figure 2 yes Figure 1 A schematic diagram of the structure of the electronic device 10 in a folded state;

[0011] Figure 3 yes Figure 1 A schematic diagram of an exploded structure of an electronic device 10;

[0012] Figure 4 yes Figure 3 A schematic diagram of the exploded structure of the rotating shaft mechanism 300;

[0013] Figure 5 yes Figure 3 A schematic diagram of a partial connection structure of the middle housing mechanism 200 and the shaft mechanism 300;

[0014] Figure 6 yes Figure 4 A schematic structural diagram of the middle fixing assembly 310;

[0015] Figure 7 yes Figure 6 A schematic diagram of the cross-sectional structure of the middle fixing assembly 310 along V-V;

[0016] Figure 8 yes Figure 6 Schematic diagram of the assembly of the middle tensioning member 312 and the fixing seat 311;

[0017] Fig. 9 yes Figure 5 A schematic diagram of a partial connection structure of the middle housing mechanism 200 and the shaft mechanism 300 from another viewing angle;

[0018] Fig.10 yes Fig. 9 A schematic diagram of a portion of the structure of the central shaft mechanism 300 when the electronic device 10 is in a flattened state;

[0019] Fig.11 yes Fig. 9 A schematic diagram of the structure of the central rotating shaft mechanism 300 when the electronic device 10 is in a folded state;

[0020] Fig.12 yes Fig.10 A schematic diagram of the connection structure of the middle fixed component 310, the rotating member 321, the rotating member 322 and the fixed bracket 323;

[0021] Fig.13 yes Fig.12 A local enlarged schematic diagram of the middle A;

[0022] Fig.14 yes Fig.10 A partial enlarged schematic diagram of point B in the middle;

[0023] Fig.15 yes Fig.12 A partial enlarged schematic diagram of point C in the middle;

[0024] Fig.16 yes Fig.10 A schematic diagram of the connection structure of the middle fixed component 310 and the rotating component 320;

[0025] Fig.17 yes Fig.16 A partial enlarged schematic diagram of point D in the middle;

[0026] Fig.18 yes Fig.10 A schematic diagram of a partial cross-sectional structure of the central rotating shaft mechanism 300 along V-V;

[0027] Fig.19 yes Fig.11 A schematic diagram of a partial cross-sectional structure of the central rotating shaft mechanism 300 along V-V;

[0028] Fig. 20 yes Figure 4 A schematic diagram of a partial connection structure of the fixed assembly 310, the rotating assembly 320 and the torsion assembly 330;

[0029] Fig.21 yes Figure 3 A schematic structural diagram of the rotating shaft mechanism 300;

[0030] Fig. 22 yes Fig. 9 A schematic diagram of a partial cross-sectional structure of the rotating mechanism 300 along V-V;

[0031] Fig.23 yes Fig.10 A partial enlarged schematic diagram of point E in the middle;

[0032] Fig.24 yes Fig.10 A schematic diagram of a partial cross-sectional structure of the central rotating shaft mechanism 300 along VI-VI;

[0033] Fig.25 yes Fig.11 A schematic diagram of a partial cross-sectional structure of the central rotating shaft mechanism 300 along VI-VI;

[0034] Fig.26 yes Figure 5 A schematic diagram of a partial cross-sectional structure of the middle housing mechanism 200 and the rotating shaft mechanism 300 along X-X;

[0035] Fig. 27 yes Figure 5 A schematic diagram of a partial cross-sectional structure of the middle housing mechanism 200 and the rotating shaft mechanism 300 along V-V;

[0036] Fig.28 yes Figure 5 Another partial cross-sectional structural diagram of the middle housing mechanism 200 and the shaft mechanism 300 along V-V. DETAILED DESCRIPTION

[0037] As used herein, "electronic devices" (or simply "terminals") include, but are not limited to, devices configured to receive / send communication signals via a wireline connection (e.g., via a public switched telephone network (PSTN), a digital subscriber line (DSL), a digital cable, a direct cable connection, and / or another data connection / network) and / or via a wireless interface (e.g., for a cellular network, a wireless local area network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and / or another communication terminal). Communication terminals configured to communicate via a wireless interface may be referred to as "wireless communication terminals", "wireless terminals" or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellite or cellular phones; personal communication system (PCS) terminals that may combine cellular radiotelephones with data processing, fax, and data communication capabilities; PDAs that may include radiotelephones, pagers, Internet / intranet access, web browsers, organizers, calendars, and / or global positioning system (GPS) receivers; and conventional laptop and / or palmtop receivers or other electronic devices that include radiotelephone transceivers. A mobile phone is an electronic device equipped with a cellular communication module.

[0038] The present application is further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present application, but are not intended to limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application rather than all embodiments, and all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0039] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0040] See also Figures 1 to 3 , Figure 1 is a schematic structural diagram of an electronic device 10 provided in an embodiment of the present application in a flattened state, Figure 2 yes Figure 1 The electronic device 10 is a schematic structural diagram in a folded state, Figure 3 yes Figure 1 FIG. 1 is a schematic diagram of an exploded structure of an electronic device 10 .

[0041] The electronic device 10 provided in the embodiment of the present application may be a foldable mobile phone, a foldable tablet computer, a foldable personal digital assistant, a foldable e-book reader, etc., and the following is only an example of the electronic device 10 being a foldable mobile phone. Figures 1 to 3 As shown, the electronic device 10 may include: a display mechanism 100, a housing mechanism 200, and a hinge mechanism 300. The display mechanism 100 is arranged on the housing mechanism 200, and can be folded along the axis Y with the housing mechanism 200. The hinge mechanism 300 is arranged on the housing mechanism 200 along the axis Y, and can support the flattened display mechanism 100 together with the housing mechanism 200, and the hinge mechanism 300 can also drive the housing mechanism 200 to fold along the axis Y. In this embodiment, the partial area of ​​the hinge mechanism 300 supporting the display mechanism 100 has the advantage of high flatness, which is conducive to reducing the probability of light shadows or creases appearing on the display mechanism 100 due to insufficient flatness of the hinge mechanism 300.

[0042] The display mechanism 100 is arranged on the housing mechanism 200 and the hinge mechanism 300, and can be folded along the axis Y driven by the housing mechanism 200, and the display mechanism 100 may include: a transparent cover plate, a touch panel and a display panel stacked in sequence. Among them, the surface of the transparent cover plate can have a flat and smooth characteristic, so that the user can perform touch operations such as clicking, sliding, pressing, etc., and the material of the transparent cover plate is a flexible material such as colorless polyimide (Colorless Polyimide, CPI). The touch panel is arranged between the transparent cover plate and the display panel, and is used to respond to the user's touch operation, and convert the corresponding touch operation into an electrical signal and transmit it to the processor of the electronic device 10, so that the electronic device 10 can respond to the user's touch operation accordingly. The display panel is mainly used to display the picture, and can be used as an interactive interface to instruct the user to perform the above-mentioned touch operation on the transparent cover plate, and the display panel can use an OLED (Organic Light-Emitting Diode) screen to realize the image display of the electronic device 10. In this embodiment, the transparent cover plate, the touch panel and the display panel can be bonded together by means of adhesives such as optical adhesive or pressure-sensitive adhesive.

[0043] In some embodiments, the display mechanism 100 may not be limited to the structure shown in the above embodiments. That is, the specific structure of the display mechanism 100 may also be adaptively selected according to the design requirements of the electronic device 10. It is only necessary that the display mechanism 100 is flexible and can be folded along the axis Y. This embodiment does not limit this. In addition, in some embodiments, when the electronic device 10 is a foldable device other than a foldable mobile phone and does not have a display function, the design of the display mechanism 100 may also be omitted.

[0044] The housing mechanism 200 can be used to carry the display mechanism 100 and can drive the display mechanism 100 to fold along the axis Y. Figures 1 to 3 As shown, the housing mechanism 200 may include: a first housing component 210 and a second housing component 220 divided along the axis Y. The first housing component 210 and the second housing component 220 are respectively connected to the opposite sides of the hinge mechanism 300 parallel to the axis Y, and the first housing component 210, the second housing component 220 and the hinge mechanism 300 can be flattened to jointly support the display mechanism 100. At the same time, the first housing component 210 and the second housing component 220 can also be folded along the axis Y through the hinge mechanism 300, and drive the display mechanism 100 to fold along the axis Y, so as to transform the electronic device 10 from the flattened state ( Figure 1 ) to the folded state ( Figure 2 shown).

[0045] Furthermore, both the first housing component 210 and the second housing component 220 have a bearing surface 201 disposed toward the display mechanism 100, and when the electronic device 10 is in a flattened state, the two bearing surfaces 201 can cooperate with the hinge mechanism 300 to support the flattened display mechanism 100 to ensure the flatness of the display mechanism 100 in the flattened state. For example, both bearing surfaces 201 can be planes, and the two bearing surfaces 201 can also be located in the same plane to improve the consistency of the two bearing surfaces 201 supporting the display mechanism 100. Of course, in some embodiments, the bearing surface 201 may not be limited to a plane, and the first housing component 210 and the second housing component 220 may also have some protrusions or depressions on the bearing surface 201. It is only necessary that the flatness of the bearing surface 201 can be maintained within a certain range and can effectively support the display mechanism 100, and this embodiment does not limit this.

[0046] Furthermore, the electronic device 10 may adopt an inward folding design so that the folded display mechanism 100 is located between the first housing assembly 210 and the second housing assembly 220 to protect the display mechanism 100. At the same time, the first housing assembly 210 and the second housing assembly 220 may also be used to install various functional components required by the electronic device 10, such as a battery, a microphone, a speaker, a camera, and a motherboard, and the functional components installed in the first housing assembly 210 may be the same or partially the same as the functional components installed in the second housing assembly 220. For example, batteries may be installed on both the first housing assembly 210 and the second housing assembly 220 to power the functional components installed on the first housing assembly 210 and the second housing assembly 220, respectively.

[0047] Furthermore, the first housing component 210 and the second housing component 220 may also be symmetrically arranged about the axis Y, that is, the axis Y may be a symmetrical folding line of the first housing component 210 and the second housing component 220. Of course, in some embodiments, the first housing component 210 and the second housing component 220 may not be limited to being symmetrically arranged about the axis Y, that is, the axis Y may also be an asymmetrical folding line of the electronic device 10, as long as the first housing component 210 and the second housing component 220 can be folded along the axis Y. In addition, the axis Y may not only be Figure 1 and Figure 2 The longitudinal placement shown in the figure enables the electronic device 10 to be folded left and right based on the axis Y, and the axis Y can also be placed horizontally, so that the electronic device 10 can be folded up and down based on the axis Y.

[0048] The terms "first", "second", and "third" in this application are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include at least one of the features.

[0049] See also Figures 4 to 8 , Figure 4 yes Figure 3 The exploded structural diagram of the rotating shaft mechanism 300 is as follows: Figure 5 yes Figure 3 A schematic diagram of a partial connection structure of the middle housing mechanism 200 and the shaft mechanism 300, Figure 6 yes Figure 4 A schematic diagram of the structure of the fixing assembly 310, Figure 7 yes Figure 6 A schematic diagram of the cross-sectional structure of the fixing assembly 310 along V-V, Figure 8 yes Figure 6 Schematic diagram of the assembly of the middle tensioning member 312 and the fixing seat 311.

[0050] The rotating shaft mechanism 300 can be arranged on the housing mechanism 200 along the axis Y, and can drive the housing mechanism 200 to fold or unfold along the axis Y. Figures 4 to 5As shown, the hinge mechanism 300 may include: a fixed component 310 and a rotating component 320. The fixed component 310 may be arranged between the first housing component 210 and the second housing component 220 along the axis Y, and the rotating components 320 are provided on both opposite sides of the fixed component 310 parallel to the axis Y. At the same time, the first housing component 210 and the second housing component 220 may be connected to the rotating components 320 on opposite sides of the fixed component 310, respectively, and the fixed component 310, the rotating component 320, the first housing component 210 and the second housing component 220 may be flattened to jointly support the display mechanism 100. In addition, the rotating component 320 may also be rotatably connected to the fixed component 310, and the first housing component 210 and the second housing component 220 may be rotated around the fixed component 310 through the rotating component 320, so as to be folded along the axis Y under the drive of the rotating component 320, so that the electronic device 10 enters the folded state from the flattened state.

[0051] The fixing component 310 has the advantage of being difficult to deform or having a small deformation amount under the action of external force, which is conducive to ensuring the flatness of the fixing component 310, thereby reducing the probability of light shadows or folds appearing in the display mechanism 100 due to insufficient flatness of the fixing component 310. Figures 5 to 7 As shown, the fixing assembly 310 may include: a fixing seat 311 and a tensioning member 312. The fixing seat 311 may be arranged between the first shell assembly 210 and the second shell assembly 220 along the axis Y, and has a supporting surface 3111 in contact with the display mechanism 100. The supporting surface 3111 has a certain degree of flatness, and can cooperate with the aforementioned bearing surface 201 to jointly support the flattened display mechanism 100. At the same time, the tensioning member 312 is arranged on the supporting surface 3111, and is in a tensioned state to generate tension acting on the fixing seat 311 to offset at least part of the deformation force (external force) on the fixing seat 311 in the direction where the tensioning member 312 is away from the supporting surface 3111. In addition, the side of the tensioning member 312 away from the supporting surface 3111 may also be in contact with the display mechanism 100, and together with the supporting surface 3111 and the bearing surface 201, support the display mechanism 100.

[0052] Through the above arrangement, when the fixing seat 311 is deformed to convex in the direction where the tensioning member 312 is away from the supporting surface 3111 due to external force, the tensioning member 312 can limit the convex deformation of the fixing seat 311 to reduce the deformation amount of the fixing seat 311 in the direction where the tensioning member 312 is away from the supporting surface 3111, thereby ensuring that the supporting surface 3111 of the fixing seat 311 has sufficient flatness to support the display mechanism 100. For ease of description, the following only refers to the direction where the tensioning member 312 is away from the supporting surface 3111, and the second direction Z2 refers to the direction where the tensioning member 312 is close to the supporting surface 3111. In addition, the external force on the fixing seat 311 in the first direction Z1 will be described later and will not be expanded here.

[0053] Exemplarily, the fixing base 311 may further include: a base 3112 and a middle plate 3113. Figures 5 to 7 As shown, the base 3112 can be arranged between the first shell component 210 and the second shell component 220 along the axis Y, and the base 3112 can be rotatably connected with the rotating component 320, so that the rotating component 320 can rotate around the base 3112. The middle plate 3113 can be covered on the side of the base 3112 close to the display mechanism 100, and the side of the middle plate 3113 away from the base 3112 can be the aforementioned support surface 3111. At the same time, the base 3112 and the middle plate 3113 can be locked by screws, which can not only ensure the connection strength between the base 3112 and the middle plate 3113, but also realize the detachable connection between the base 3112 and the middle plate 3113. Of course, the base 3112 and the middle plate 3113 can also be connected by non-detachable methods such as bonding, welding and clamping, which is not limited in this embodiment.

[0054] In some embodiments, the fixing seat 311 may also include but is not limited to: a base 3112 and a middle plate 3113. That is, the specific structure of the fixing seat 311 can be adaptively adjusted according to design requirements, and is not limited to the combination of the base 3112 and the middle plate 3113. It is only necessary for the fixing seat 311 to have the aforementioned support surface 3111, and the tensioning member 312 can be arranged on the support surface 3111, and can generate tension to act on the fixing seat 311. This embodiment does not limit this. Of course, in order to facilitate the description of the matching relationship between the fixing seat 311 and the tensioning member 312, the following description is only based on the fixing seat 311 including: a base 3112 and a middle plate 3113, and the side of the middle plate 3113 facing away from the base 3112 is the support surface 3111.

[0055] Furthermore, in order to realize the rotation connection between the base 3112 and the rotating assembly 320, a first arc groove 3114 ( Figure 7), and the corresponding structure of the rotating assembly 320 can be arranged in the first arc groove 3114 and can slide in the first arc groove 3114. At the same time, the sliding track of the rotating assembly 320 in the first arc groove 3114 can be an arc, so that the rotating assembly 320 can be rotatably connected with the base 3112 by the virtual axis (passing through the arc center and parallel to the axis Y) formed by the first arc groove 3114. Such a setting can not only reduce the stacking thickness of the base 3112 and the rotating assembly 320 in the first direction Z1, but also help to reduce the rotation angle required for the corresponding structure of the rotating assembly 320 to rotate to the folded position, thereby providing a larger avoidance space for the bending area of ​​the display mechanism 100.

[0056] Furthermore, in order to realize the rotation connection between the base 3112 and the rotating assembly 320, the fixing assembly 310 may further include: a rotating shaft 313 ( Figure 6 ), and the structure corresponding to the rotating component 320 can be sleeved on the rotating shaft 313, and can be rotated relative to the base 3112 through the rotating shaft 313. At the same time, a notch 3115 can also be opened on the middle plate 3113, and the notch 3115 can avoid the structure of the rotating component 320 rotating through the rotating shaft 313, so as to ensure that the structure corresponding to the rotating component 320 can be rotated into place. In addition, the rotation axis direction of the structure of the rotating component 320 rotating relative to the base 3112 through the rotating shaft 313 can be parallel to the rotation axis direction of the structure of the rotating component 320 rotating relative to the base 3112 through the first arc groove 3114. Among them, the structure of the rotating component 320 rotatably connected to the base 3112 through the first arc groove 3114 and the rotating shaft 313 will be introduced later and will not be expanded here.

[0057] Furthermore, in order to reduce the thickness of the fixing assembly 310 in the first direction Z1 to meet the current thin and light requirements of the electronic device 10, the thickness of the base 3112 and the middle plate 3113 are generally designed to be thinner, and the thinner base 3112 and the middle plate 3113 are also relatively weak in structural strength. At the same time, since the base 3112 and the middle plate 3113 are assembled into one body, when the fixing base 311 is subjected to external force in the first direction Z1, the parts of the base 3112 and the middle plate 3113 subjected to external force will bulge and deform in the first direction Z1, so that the side of the middle plate 3113 away from the base 3112, that is, the flatness of the support surface 3111, is reduced, thereby affecting the display effect of the display mechanism 100. Based on this, in this embodiment, a tensioning member 312 is arranged on the support surface 3111, and the tensioning member 312 is used to generate tension acting on the middle plate 3113 to offset at least part of the external force exerted on the base 3112 and the middle plate 3113 in the first direction Z1, thereby ensuring that the support surface 3111 has sufficient flatness to support the display mechanism 100.

[0058] Since the base 3112 and the middle plate 3113 are assembled into one body and deform synchronously under the action of external force, the following description only uses the convex deformation of the middle plate 3113 to represent the convex deformation of the entire fixed seat 311. Furthermore, since the deformation amount of different areas on the middle plate 3113 caused by external force is different, the tension applied by the tensioning member 312 to different areas of the middle plate 3113 can also be different, so as to specifically limit the deformation of different areas of the middle plate 3113. Figure 6 As shown, the middle plate 3113 may include: a deformation portion 31131 and a connection portion 31132. The deformation portion 31131 may be a partial area of ​​the middle plate 3113 close to the force position (large deformation), and the connection portion 31132 may be a partial area of ​​the middle plate 3113 far from the force position (small deformation or no deformation). At the same time, the tension generated by the tensioning member 312 corresponding to the partial area of ​​the deformation portion 31131 may be combined with the tension generated by the tensioning member 312 corresponding to the partial area of ​​the connection portion 31132, so as to specifically limit the deformation of different areas of the middle plate 3113.

[0059] Further, the external forces acting on the middle plate 3113 may be multiple, and the number of deformation parts 31131 of the middle plate 3113 may also be multiple, and the number of deformation parts 31131 may be the same as the number of external forces applied to the middle plate 3113. At the same time, the multiple deformation parts 31131 may be arranged in sequence and spaced apart in a direction parallel to the axis Y, and a connection part 31132 may be connected between two adjacent deformation parts 31131. For example, the number of deformation parts 31131 may be three, and the three deformation parts 31131 may be arranged in sequence and spaced apart in a direction parallel to the axis Y, and a connection part 31132 may be connected between two adjacent deformation parts 31131 among the three deformation parts 31131. It can be understood that the layout and number of the aforementioned deformation parts 31131 and the connecting parts 31132 are only exemplary. The layout and number of the deformation parts 31131 and the connecting parts 31132 can also be adaptively adjusted according to the number of external forces and the force positions, and are not limited to the schemes shown in the above embodiments. This embodiment does not limit this.

[0060] In the description of the application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise clearly and specifically limited. In the embodiment of the present application, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their deformations are intended to cover non-exclusive inclusions. For example, the process, method, system, product or equipment comprising a series of steps or units is not limited to the steps or units listed, but optionally also includes the steps or units not listed, or optionally also includes other steps or units inherent to these processes, methods, products or equipment.

[0061] The tensioning member 312 is disposed on the supporting surface 3111 and is in a tensioned state to generate tension acting on the fixing seat 311 to offset at least part of the deformation force on the fixing seat 311 in the first direction Z1. Figure 6 As shown, the tensioning member 312 can be arranged along the axis Y on the side of the middle plate 3113 away from the base 3112, that is, on the support surface 3111, and the tensioning member 312 can generate tension acting on the middle plate 3113 to offset at least part of the deformation force on the middle plate 3113 in the first direction Z1. At the same time, the length of the tensioning member 312 in the direction parallel to the axis Y can be similar to the length of the middle plate 3113, so that the tensioning member 312 can be arranged in a long strip shape to ensure that the tensioning member 312 can relatively completely cover the middle plate 3113 in the direction parallel to the axis Y, thereby limiting the deformation of different areas of the middle plate 3113. In this arrangement, when the middle plate 3113 convexly deforms in the first direction Z1 due to external force, the tensioning member 312 can limit the convex deformation of the middle plate 3113 to reduce the convex deformation amount of the middle plate 3113 in the first direction Z1, thereby ensuring that the supporting surface 3111 where the middle plate 3113 contacts the display mechanism 100 has sufficient flatness.

[0062] Furthermore, in order to restrict the deformation of different regions of the middle plate 3113 in a targeted manner, the tensioning member 312 may include: a tensioning area 3121 and a connecting area 3122. The tensioning area 3121 may be provided on a portion of the surface of the support surface 3111 corresponding to the deformation portion 31131, and the connecting area 3122 may be provided on a portion of the surface of the support surface 3111 corresponding to the connecting portion 31132, and the tension of the tensioning area 3121 may be greater than the tension of the connecting area 3122. At the same time, the tensioning member 312 may restrict the deformation portion 31131 with a larger deformation amount by using the tensioning area 3121 with a larger tension, and restrict the connecting portion 31132 with a smaller deformation amount or no deformation by using the connecting area 3122 with a smaller tension or no tension. Such arrangement, compared with the solution in which the tensioning member 312 does not specifically limit the deformation of different areas of the middle plate 3113, can avoid the tensioning member 312 applying the same tension as the deformation portion 31131 to the connecting portion 31132, thereby causing negative effects on the connecting portion 31132 with a smaller deformation or no deformation, thereby ensuring that the supporting surface 3111 of the middle plate 3113 has sufficient flatness.

[0063] Further, there may be multiple tensioning areas 3121, and the number of tensioning areas 3121 may be the same as the number of deformation parts 31131. At the same time, multiple tensioning areas 3121 may be arranged on the support surface 3111 in sequence in a direction parallel to the axis Y, and are arranged one-to-one with multiple deformation parts 31131, and a connection area 3122 may be connected between two adjacent tensioning areas 3121. For example, there may be three tensioning areas 3121, and three tensioning areas 3121 may be arranged on the support surface 3111 in sequence in a direction parallel to the axis Y, and are arranged one-to-one with three deformation parts 31131, and a connection area 3122 may be connected between two adjacent tensioning areas 3121, and the connection area 3122 may also be arranged one-to-one with the connection part 31132. It can be understood that the layout position and number of the aforementioned tensioning zone 3121 and the connection zone 3122 are only exemplary. The layout position and number of the tensioning zone 3121 and the connection zone 3122 can also be adaptively adjusted according to the position and number of the deformation portion 31131 and the connection portion 31132, and are not limited to the scheme shown in the above embodiment. This embodiment does not limit this.

[0064] In some embodiments, considering that the deformation of the connection portion 31132 is small or not deformed, the tensioning member 312 may also only include: the tensioning area 3121. That is, the tensioning member 312 may be divided into a plurality of tensioning areas 3121, so as to be respectively arranged in one-to-one correspondence with the plurality of deformation portions 31131, without setting the connection area 3122 on the partial surface of the support surface 3111 corresponding to the connection portion 31132.

[0065] Furthermore, the tensioning member 312 also has a plurality of fixing points 3123 connected to the fixing seat 311. Figure 6 As shown, a plurality of fixing points 3123 can be sequentially arranged on the tensioning member 312 along a direction parallel to the axis Y, and are used to rigidly fix the tensioning member 312 on the middle plate 3113. The tensioning area 3121 and the connecting area 3122 are located at opposite ends in the extending direction of the axis Y and have a certain number of fixing points 3123, and the fixing points 3123 at the junction of the tensioning area 3121 and the connecting area 3122 can also be shared, so that the tensioning area 3121 and the connecting area 3122 are divided on the tensioning member 312 by using the fixing points 3123. At the same time, since the tension in the tensioning zone 3121 is greater than the tension in the connecting zone 3122, in addition to the fixed points 3123 at the opposite ends of the tensioning zone 3121 in the extension direction of the axis Y, the tensioning zone 3121 may also have other fixed points 3123, so that the number of fixed points 3123 in the tensioning zone 3121 can be more than the number of fixed points 3123 in the connecting zone 3122, so as to specifically improve the connection stability between the tensioning zone 3121 and the middle plate 3113.

[0066] In some embodiments, the layout positions of multiple fixed points 3123 on the tensioning member 312 can also be adaptively adjusted according to the design requirements of the tensioning area 3121 and the connection area 3122, and are not limited to the scheme shown in the above embodiment. It is only necessary for the fixed point 3123 to connect the tensioning member 312 and the middle plate 3113, and this embodiment does not limit this.

[0067] Further, the tensioning member 312 may be a metal diaphragm (such as a stainless steel sheet) disposed on the support surface 3111, and has a thickness of 0.01-0.05 mm, such as 0.01 mm, 0.03 mm or 0.05 mm, and the modulus of the tensioning member 312 may be greater than or equal to 100 GPa. Alternatively, the tensioning member 312 may also be an inorganic diaphragm (such as polyimide or polyester resin) disposed on the support surface 3111, and has a thickness of 0.01-0.05 mm, such as 0.01 mm, 0.03 mm or 0.05 mm, and the modulus of the tensioning member 312 may be greater than or equal to 3 GPa. Wherein, when the tensioning member 312 is a metal diaphragm, the tensioning member 312 may be welded to the middle plate 3113 by spot welding, and the aforementioned fixing point 3123 is formed at the spot welding position. When the tensioning member 312 is an inorganic membrane, the tensioning member 312 can be bonded to the middle plate 3113 by glue dispensing, and the aforementioned fixing point 3123 is formed at the glue dispensing location.

[0068] Furthermore, the tensioning member 312 can be in a tensioned state to generate tension acting on the middle plate 3113. Figure 8As shown, when assembling the fixing assembly 310, a deformation force can be applied to the entire fixing seat 311 in the second direction Z2 by a jig, so that a part of the fixing seat 311 (such as the deformation part 31131) is convexly deformed in the second direction Z2, and the fixing seat 311 is maintained in the convexly deformed state in the second direction Z2 by the jig. The convex deformation amount of the fixing seat 311 in the second direction Z2 can be a fixed deformation value obtained by measurement or verification. For example, on a rotating shaft mechanism 300 without a tensioning member 312, the convex deformation of the fixing seat 311 in the first direction Z1 can be measured and verified multiple times to obtain a fixed deformation value of the fixing seat 311 in the second direction Z2.

[0069] When a part of the fixing seat 311 is deformed by convexity in the second direction Z2, the tensioning member 312 is rigidly connected to the fixing seat 311 by the fixing point 3123 formed by spot welding or glue, and the tensioning area 3121 and the connecting area 3122 can respectively correspond to the convex part (deformation part 31131) and other parts (connection part 31132) of the fixing seat 311. The position of the fixing point 3123 can also be found on the tensioning member 312 by experiment to find the optimal fixing position, so that the tension generated by the tensioning member 312 can achieve the optimal improvement effect, that is, to limit the convex deformation of different areas of the fixing seat 311 in a targeted manner. When the tensioning member 312 is rigidly connected to the fixed seat 311, the tooling fixture can cancel the deformation force applied to the fixed seat 311 in the second direction Z2, and the convex deformed area of ​​the fixed seat 311 can stretch the tensioning area 3121, so that the tensioning area 3121 can be in a tensioned state and generate tension acting on the fixed seat 311. Among them, when the deformation force applied by the tooling fixture in the second direction Z2 is canceled, the convex deformation amount of the fixed seat 311 in the second direction Z2 can be controlled by the tension generated by the tensioning member 312, so as to use the tension generated by the tensioning member 312 to offset at least part of the deformation force applied to the fixed seat 311 in the first direction Z1.

[0070] Through the above arrangement, when a part of the fixing seat 311 (deformation part 31131) is subjected to a deformation force in the first direction Z1 and a convex deformation occurs in the first direction Z1, the tension generated by the tensioning area 3121 can offset the deformation force on at least part of the fixing seat 311 in the first direction Z1, so as to reduce the convex deformation amount of the fixing seat 311 in the first direction Z1. At the same time, since the tensioning member 312 is connected to the entire fixing seat 311 in a direction parallel to the axis Y, the tensioning member 312 can also diffuse the deformation force on the fixing seat 311 to the entire fixing seat 311, and use the overall rigidity of the fixing seat 311 to counteract the deformation force on the fixing seat 311, so as to further reduce the convex deformation amount of the fixing seat 311 in the first direction Z1, thereby achieving the purpose of improving the flatness of the fixing seat 311.

[0071] See also Figures 9 to 11 , Fig. 9 yes Figure 5 A schematic diagram of a partial connection structure of the middle housing mechanism 200 and the shaft mechanism 300 from another perspective, Fig.10 yes Fig. 9 A schematic diagram of a portion of the structure of the central shaft mechanism 300 when the electronic device 10 is in a flattened state, Fig.11 yes Fig. 9 A schematic structural diagram of the central shaft mechanism 300 when the electronic device 10 is in a folded state.

[0072] The rotating assembly 320 can be connected to the housing assembly and the fixing seat 311 respectively, and can drive the housing assembly to rotate around the fixing seat 311 to achieve folding or unfolding of the electronic device 10. Fig. 9 As shown, the rotating assembly 320 can be rotatably connected with the fixing seat 311, and the fixing seat 311 is provided with the rotating assembly 320 on both sides parallel to the axis Y, and the first shell assembly 210 and the second shell assembly 220 can be respectively connected with the rotating assembly 320 on the opposite sides of the fixing seat 311, and can be folded along the axis Y under the drive of the rotating assembly 320. At the same time, the rotating assembly 320 on the opposite sides can also be flattened with the fixing seat 311 to cooperate with the fixing seat 311, the first shell assembly 210 and the second shell assembly 220 to jointly support the display mechanism 100, and the rotating assembly 320 on the opposite sides can also be symmetrically arranged about the axis Y. The following is only described by taking the rotating assembly 320 connecting the fixing seat 311 and the first shell assembly 210 as an example.

[0073] like Figure 10 to Figure 11As shown, the rotating assembly 320 may include: a rotating member 321, a rotating member 322, a fixed bracket 323 and a side plate 324. The rotating member 321 and the rotating member 322 are located on the same side of the fixed seat 311, and are both rotatably connected to the fixed seat 311, and the rotation axis directions of the rotating member 321 and the rotating member 322 are parallel. The fixed bracket 323 is slidably connected to the rotating member 321, and can slide relative to the rotating member 321 in a direction close to or away from the fixed seat 311, and the fixed bracket 323 can be connected to the first housing assembly 210. At the same time, the fixed bracket 323 is also rotatably connected to the rotating member 322, and the rotation axis direction of the fixed bracket 323 is parallel to the rotation axis direction of the rotating member 322 on the fixed seat 311. The side plate 324 can be flattened with the fixed seat 311, and can support the display mechanism 100 together with the fixed seat 311, and the side plate 324 is also rollingly connected to the rotating member 322. In addition, the side plate 324 is also rotatably connected to the fixing bracket 323 , and the rotation axis direction of the side plate 324 is parallel to the rotation axis direction of the fixing bracket 323 on the rotating member 322 .

[0074] When the user folds the electronic device 10, the fixed bracket 323 can drive the rotating member 322 to rotate around the fixed seat 311, and drive the rotating member 321 to rotate around the fixed seat 311, and the fixed bracket 323 can also rotate relative to the rotating member 322. At the same time, since the rotation axis directions of the rotating member 321 and the rotating member 322 are parallel (the rotation tracks are inconsistent), the fixed bracket 323 can also slide relative to the rotating member 321 in the direction away from the fixed seat 311, and the side plate 324 can move in the direction away from the fixed seat 311 with the fixed bracket 323, and can rotate relative to the rotating member 322 with the fixed bracket 323. In addition, since the side plate 324 is also rollingly connected to the rotating member 322, the side plate 324 will be restricted by the rotating member 322 when moving with the fixed bracket 323, and further rotate relative to the fixed bracket 323 under the drive of the rotating member 322.

[0075] After the rotating member 321, the rotating member 322, the fixed bracket 323 and the side plate 324 are linked as described above, the first housing assembly 210 and the second housing assembly 220 can be folded along the axis Y driven by the fixed bracket 323, and the side plate 324 can be moved to the support surface 3111 of the fixed seat 311 driven by the rotating member 322 and the fixed bracket 323, and can be enclosed together with the fixed seat 311 to form a water drop-shaped accommodation space 3201 to accommodate the bending area of ​​the display mechanism 100. In this way, the rotating assembly 320 can realize the folding or unfolding of the electronic device 10 through the linkage of the rotating member 321, the rotating member 322, the fixed bracket 323 and the side plate 324.

[0076] See also Figures 12 to 15 , Fig.12 yes Fig.10 The schematic diagram of the connection structure of the middle fixed component 310, the rotating member 321, the rotating member 322 and the fixed bracket 323, Fig.13 yes Fig.12 A partial enlarged schematic diagram of point A in the middle. Fig.14 yes Fig.10 A partial enlarged schematic diagram of point B in the middle. Fig.15 yes Fig.12 A partial enlarged schematic diagram of point C in the middle.

[0077] The rotating member 321 is rotatably connected to the base 3112, and the rotating member 321 is also slidably connected to the fixed bracket 323. Fig.12 As shown, the rotating member 321 can be sleeved on the rotating shaft 313 and rotatably connected with the base 3112 through the rotating shaft 313, and the rotating shaft direction of the rotating member 321 can be parallel to the axis Y. At the same time, the partial area of ​​the rotating member 321 away from the rotating shaft 313 can also be inserted on the fixed bracket 323 and slidably connected with the fixed bracket 323, and the fixed bracket 323 can slide relative to the rotating member 321 in the direction close to or away from the base 3112. Among them, when the fixed bracket 323 drives the rotating member 322 to rotate around the base 3112, the rotating member 321 can rotate around the base 3112 driven by the fixed bracket 323, and because the rotating shaft directions of the rotating member 321 and the rotating member 322 are parallel (the rotation trajectories are inconsistent), the fixed bracket 323 can also slide relative to the rotating member 321.

[0078] In some embodiments, the two rotating components 320 located on opposite sides of the fixed seat 311 (base 3112) can also move synchronously around the fixed seat 311. For example, the fixed component 310 can also include: two meshing synchronous gears 314. Among them, the two meshing synchronous gears 314 can be rotatably arranged on the base 3112 and located between the rotating parts 321 of the two rotating components 320, and the two synchronous gears 314 can also respectively mesh with the partial areas of the rotating parts 321 of the two rotating components 320 that are sleeved on the rotating shaft 313. In this way, when the rotating part 321 of one rotating component 320 starts to rotate, the two meshing synchronous gears 314 can synchronously drive the rotating part 321 of the other rotating component 320 to rotate, so as to realize the synchronous movement of the two rotating components 320. In some embodiments, the rotating part 321 can also cooperate with the side plate 324 to push the side plate 324 when the fixed bracket 323 slides, so that the side plate 324 rotates relative to the fixed bracket 323. As shown in FIG. Fig.13As shown, the rotating member 321 may be provided with a matching portion 3211 exposed to the fixed bracket 323, and the matching portion 3211 may be slidably provided on the structure corresponding to the side plate 324, and point-contact with the structure corresponding to the side plate 324. When the fixed bracket 323 drives the side plate 324 to slide relative to the rotating member 321, the matching portion 3211 may slide on the structure corresponding to the side plate 324, and abut against the structure corresponding to the side plate 324, so as to push the side plate 324 to rotate relative to the fixed bracket 323. It should be noted that the aforementioned point contact may also include a line contact formed by connecting numerous contact points, and it is only necessary that the kinematic pair of the matching portion 3211 and the side plate 324 is a high pair.

[0079] Specifically, the matching portion 3211 may include: a first matching portion 3211a and a second matching portion 3211b, and the first matching portion 3211a and the second matching portion 3211b may be slidably disposed on the structure corresponding to the side plate 324, and both may be in point contact with the structure corresponding to the side plate 324. When the electronic device 10 is folded, the fixed bracket 323 may drive the side plate 324 to slide in a direction away from the base 3112, and the first matching portion 3211a and the second matching portion 3211b may slide on the structure corresponding to the side plate 324, and the first matching portion 3211a may also abut against the structure corresponding to the side plate 324 to push the side plate 324 to rotate relative to the fixed bracket 323. When the electronic device 10 is unfolded, the fixed bracket 323 can drive the side panel 324 to slide in the direction close to the base 3112, and the first matching portion 3211a and the second matching portion 3211b can slide in opposite directions on the corresponding structure of the side panel 324, and the second matching portion 3211b can also abut against the corresponding structure of the side panel 324 to push the side panel 324 to rotate in the opposite direction relative to the fixed bracket 323.

[0080] The rotating member 322 is rotatably connected to the base 3112, and the rotating member 322 is also rotatably connected to the fixed bracket 323, and the rotation axis direction of the rotating member 322 on the base 3112 is parallel to the rotation axis direction of the fixed bracket 323 on the rotating member 322. Fig.12As shown, the rotating member 322 and the rotating member 321 are located on the same side of the base 3112 and are spaced apart from the rotating member 321 in a direction parallel to the axis Y. At the same time, a partial area of ​​the rotating member 322 can be arranged in the first arc groove 3114 and can slide in the first arc groove 3114, and the sliding track of the rotating member 322 in the first arc groove 3114 can be an arc, so that the rotating member 322 can be rotatably connected to the base 3112 with a virtual axis formed by the first arc groove 3114. In addition, the rotation axis direction of the rotating member 322 can also be parallel to the rotation axis direction of the rotating member 321, so that the fixed bracket 323 can slide relative to the rotating member 321. Among them, the rotating member 322 can rotate around the base 3112 between a first position and a second position, and when the rotating member 322 is in the first position, the electronic device 10 can be in a flattened state, and when the rotating member 322 is in the second position, the electronic device 10 can be in a folded state.

[0081] Furthermore, a portion of the rotating member 322 away from the base 3112 can be rotatably connected to the fixed bracket 323. Fig.14 As shown, the rotating assembly 320 may further include: a connecting shaft 325 disposed on the fixed bracket 323. The extending direction of the connecting shaft 325 may be parallel to the rotation axis direction of the rotating member 322 relative to the base 3112, and a portion of the rotating member 322 away from the base 3112 may be sleeved on the connecting shaft 325, and the fixed bracket 323 may be rotatably connected to the rotating member 322 via the connecting shaft 325. With such a configuration, when the electronic device 10 is folded, the fixed bracket 323 drives the first housing assembly 210 to rotate relative to the rotating member 322, so as to avoid the first housing assembly 210 being restricted by the rotation angle of the rotating member 322, thereby ensuring that the first housing assembly 210 and the second housing assembly 220 can be merged together without leaving a gap.

[0082] Furthermore, the rotating member 322 can also be connected to the side plate 324 in a rolling manner, and can drive the side plate 324 to rotate relative to the fixed bracket 323. Fig.12As shown, a rolling portion 3221 is provided on the side of the rotating member 322 away from the rotating member 321, and the rolling portion 3221 can be rollingly provided on the structure corresponding to the side plate 324. When the side plate 324 moves with the fixed bracket 323, the side plate 324 will not only be displaced in a manner away from the base 3112, but also in a direction away from the rotating member 322, and the rolling portion 3221 will abut against the structure corresponding to the side plate 324 to drive the side plate 324 to rotate relative to the fixed bracket 323. At the same time, when the side plate 324 rotates with the fixed bracket 323, the rolling portion 3221 will also roll on the structure corresponding to the side plate 324 as the side plate 324 rotates, so as to avoid the rolling portion 3221 from restricting the rotation of the side plate 324. In addition, the movement stroke of the rolling portion 3221 on the corresponding structure of the side plate 324 can be designed to indirectly control the rotation stroke of the fixed bracket 323 relative to the rotating member 322 to avoid unnecessary rotation of the fixed bracket 323 and affect the movement stability of the rotating assembly 320.

[0083] In some embodiments, when the rotating member 321 has a matching portion 3211 that can drive the side plate 324 to rotate relative to the fixed bracket 323, the rolling portion 3221 can also drive the side plate 324 to rotate on the fixed bracket 323 together with the matching portion 3211. Alternatively, when the matching portion 3211 drives the side plate 324 to rotate relative to the fixed bracket 323, the rolling portion 3221 can roll on the structure corresponding to the side plate 324 as the side plate 324 rotates, and does not abut against the structure corresponding to the side plate 324, so that the rolling portion 3221 can only play a role in limiting the rotation stroke of the side plate 324, without limiting the freedom of movement of the side plate 324.

[0084] The fixed bracket 323 can be slidably connected to the rotating member 321, and can be rotatably connected to the rotating member 322. Figure 12 to Figure 14 As shown, the fixed bracket 323, the rotating member 321 and the rotating member 322 can be located on the same side of the base 3112, and the fixed bracket 323 can also be spaced apart from the base 3112. Among them, the fixed bracket 323 has a slot 3231 for the rotating member 321 to be inserted in the partial area corresponding to the rotating member 321, and the slot 3231 can also partially penetrate the side of the fixed bracket 323 facing the display mechanism 100, so that the matching portion 3211 of the rotating member 321 can be exposed to the fixed bracket 323 and matched with the side plate 324. At the same time, the fixed bracket 323 can also be provided with a stopper 3232 in the partial area close to the connecting shaft 325, and the stopper 3232 can be engaged with the partial area of ​​the rotating member 322 sleeved on the connecting shaft 325 to limit the rotation stroke of the fixed bracket 323 on the rotating member 322.

[0085] Furthermore, the fixing bracket 323 can also be rotatably connected to the side plate 324, so that the side plate 324 and the fixing seat 311 can be together formed to enclose a water drop-shaped accommodation space 3201. Fig.12 and Fig.15 As shown, the fixed bracket 323 may be provided with a third arc groove 3233, and the structure corresponding to the side plate 324 may be arranged in the third arc groove 3233 and may slide in the third arc groove 3233. At the same time, the sliding track of the structure corresponding to the side plate 324 in the third arc groove 3233 may be an arc, so that the structure corresponding to the side plate 324 may be rotatably connected to the fixed bracket 323 through a virtual axis (passing through the arc center and parallel to the axis Y) formed by the third arc groove 3233. In addition, the virtual axis formed by the third arc groove 3233 may also be parallel to the rotation axis direction (connection axis 325) of the fixed bracket 323. In this embodiment, the third arc groove 3233 may be provided in a partial area of ​​the fixed bracket 323 located on the side of the rolling portion 3221 away from the base 3112. Of course, the opening position of the third arc groove 3233 may also be selected according to design requirements, and this embodiment does not limit this.

[0086] Furthermore, the rotating member 321, the rotating member 322 and the fixed bracket 323 can together constitute the transmission member M of the rotating assembly 320. There can be multiple transmission members M, and the multiple transmission members M can be arranged on the same side of the base 3112 parallel to the axis Y. At the same time, the multiple transmission members M can also be connected to the side plate 324, and the side plate 324 can be linked with the multiple transmission members M to move under the drive of the multiple transmission members M. For example, the rotating assembly 320 can have three transmission members M ( Figure 4 ), and two of the three transmission members M can be adjacently arranged at one end of the base 3112, and the remaining transmission member M can be arranged at the other opposite end of the base 3112 and spaced apart from the two adjacent transmission members M to form a spacing space for wiring to electrically connect the electronic devices distributed on the first shell assembly 210 and the second shell assembly 220. Of course, the layout of the multiple transmission members M is not limited to this, and this embodiment lists them one by one.

[0087] See also Figures 16 to 19 , Fig.16 yes Fig.10 The middle part is a schematic diagram of the connection structure of the fixed component 310 and the rotating component 320, Fig.17 yes Fig.16 The local enlarged schematic diagram of D in the middle, Fig.18 yes Fig.10 A schematic diagram of a partial cross-sectional structure of the central rotating shaft mechanism 300 along V-V, Fig.19 yes Fig.11 Schematic diagram of the partial cross-sectional structure of the central rotating shaft mechanism 300 along line V-V.

[0088] The side plate 324 can be flattened with the fixing seat 311, and can be rollingly connected with the rotating member 322, and the side plate 324 can also be rotatably connected with the fixing bracket 323. Fig.16 As shown, the side plate 324 can be located on the side of the rotating member 321, the rotating member 322 and the fixed bracket 323 close to the display mechanism 100, and can be flattened with the middle plate 3113 to jointly support the display mechanism 100. At the same time, a part of the side plate 324 can also overlap the edge of the middle plate 3113 parallel to the axis Y, and be located on the side of the middle plate 3113 away from the base 3112, so as to use the middle plate 3113 to support the side plate 324 in the first direction Z1. In addition, when the side plate 324 moves to the support surface 3111 of the middle plate 3113, the side of the side plate 324 supporting the display mechanism 100 can intersect with the support surface 3111 to form an angle less than 90°, so that the side plate 324 can be enclosed with the middle plate 3113 to form a water drop-shaped accommodation space 3201.

[0089] In some embodiments, the side plate 324 can rotate relative to the fixed bracket 323 under the drive of the matching portion 3211 of the rotating member 321. Figure 16 to Figure 17 As shown, the side plate 324 has a guide portion 3241 protruding toward the rotating member 321, and the matching portion 3211 can be slidably disposed on the guide portion 3241 and point-contact with the guide portion 3241. When the fixed bracket 323 drives the side plate 324 to slide relative to the rotating member 321, the matching portion 3211 can slide on the guide portion 3241 and abut against the guide portion 3241, so as to push the side plate 324 to rotate relative to the fixed bracket 323 through the guide portion 3241.

[0090] Specifically, the guide portion 3241 has an inner surface 3241a facing the side plate 324, and an outer surface 3241b opposite to the side plate 324. The first matching portion 3211a can be slidably disposed on the inner surface 3241a and in point contact with the inner surface 3241a. The second matching portion 3211b can be slidably disposed on the outer surface 3241b and in point contact with the outer surface 3241b. When the electronic device 10 is folded, the fixed bracket 323 can drive the side plate 324 to slide in a direction away from the base 3112, and the first matching portion 3211a and the second matching portion 3211b can slide on the inner surface 3241a and the outer surface 3241b respectively, and the first matching portion 3211a can also abut against the inner surface 3241a to push the side plate 324 to rotate relative to the fixed bracket 324. When the electronic device 10 is unfolded, the fixed bracket 323 can drive the side panel 324 to slide in the direction close to the base 3112, the first matching portion 3211a and the second matching portion 3211b can slide in opposite directions on the inner surface 3241a and the outer surface 3241b respectively, and the second matching portion 3211b can also abut against the outer surface 3241b to push the side panel 324 to rotate in the opposite direction relative to the fixed bracket 324.

[0091] Further, the inner surface 3241a and the outer surface 3241b may be staggered in the first direction Z, and the surface where the inner surface 3241a is located and the surface where the outer surface 3241b is located may be parallel or overlapped. For example, the inner surface 3241a and the outer surface 3241b may both be curved surfaces, and the surfaces where the inner surface 3241a and the outer surface 3241b are located may overlap, that is, the inner surface 3241a and the outer surface 3241b may be located at the same height in the first direction Z1, which is conducive to reducing the stacking height of the matching portion 3211 and the guide portion 3241 in the first direction Z1. Of course, in some embodiments, the inner surface 3241a and the outer surface 3241b may not be limited to curved surfaces, and both may be planes, and it is sufficient that the guide portion 3241 can rotate relative to the fixed bracket 323 under the drive of the matching portion 3211, and this embodiment does not limit this.

[0092] Furthermore, in order to realize the rolling connection between the side plate 324 and the rotating member 322, the side plate 324 may have a protrusion 3242 located on the side of the rotating member 322 away from the rotating member 321, and the protrusion 3242 may be rollingly connected to the rotating member 322. Figure 18 to Figure 19As shown, a rolling groove 32421 may be provided on the side of the protruding portion 3242 facing the rotating member 322, and the rolling portion 3221 of the rotating member 322 may be rollingly disposed in the rolling groove 32421. When the side plate 324 moves with the fixed bracket 323, the side plate 324 will not only be displaced in a manner away from the base 3112, but also in a direction away from the rotating member 322, and the rolling portion 3221 may abut against the groove wall of the rolling groove 32421 to drive the side plate 324 to rotate relative to the fixed bracket 323. At the same time, when the side plate 324 rotates with the fixed bracket 323, the rolling portion 3221 will also roll in the rolling groove 32421 as the side plate 324 rotates, so as to avoid the rolling portion 3221 from restricting the rotation of the side plate 324. In addition, the movement stroke of the rolling portion 3221 in the rolling groove 32421 can be designed to indirectly control the rotation stroke of the fixed bracket 323 relative to the rotating member 322 to avoid unnecessary rotation of the fixed bracket 323 and affect the movement stability of the rotating assembly 320.

[0093] Furthermore, in order to realize the rotation connection between the side plate 324 and the fixing bracket 323, the side plate 324 may have an arc portion 3243 that matches the fixing bracket 323. Figure 18 to Figure 19 As shown, the arc portion 3243 can be arranged in the third arc groove 3233 and can be moved in the third arc groove 3233. At the same time, the sliding track of the arc portion 3243 in the third arc groove 3233 can be an arc, so that the arc portion 3243 can be rotatably connected with the fixed bracket 323 through the virtual axis formed by the third arc groove 3233, so as to realize the rotation connection between the side plate 324 and the fixed bracket 323. In addition, the virtual axis formed by the third arc groove 3233 can also be parallel to the rotation axis direction (connection axis 325) of the fixed bracket 323, that is, the rotation axis direction of the side plate 324 can be parallel to the rotation axis direction of the fixed bracket 323. Among them, when the side plate 324 moves with the fixed bracket 323, the rolling portion 3221 can abut against the groove wall of the rolling groove 32421 to drive the arc portion 3243 to slide in the third arc groove 3233, so that the side plate 324 can rotate relative to the fixed bracket 323.

[0094] See also Figure 20 to Figure 22 , Fig. 20 yes Figure 4 A schematic diagram of a partial connection structure of the fixed component 310, the rotating component 320 and the torsion component 330, Fig.21 yes Figure 3 A schematic diagram of the structure of the rotating shaft mechanism 300, Fig. 22 yes Fig. 9 Schematic diagram of the partial cross-sectional structure of the rotating mechanism 300 along V-V.

[0095] In order to provide a damping feeling when the electronic device 10 is folded or unfolded, the hinge mechanism 300 may further include a torsion component 330. Figure 20 to Figure 21 As shown, the torsion assembly 330 can be arranged on the fixed seat 311, and can abut and mesh with the rotating assembly 320 in the direction of the rotation axis of the rotating assembly 320. When the rotating assembly 320 rotates around the fixed seat 311, the torsion assembly 330 can generate a torsion force acting on the rotating assembly 320 to provide a damping feel for the rotation of the rotating assembly 320. At the same time, when the rotating assembly 320 and the fixed seat 311 are flattened, the torsion force (equivalent to the aforementioned external force) generated by the torsion assembly 330 can also act on the fixed seat 311, and cause the fixed seat 311 to convexly deform in the first direction Z1. In addition, the tensioning member 312 can generate a tension force acting on the fixed seat 311 to offset at least part of the torsion force of the torsion assembly 330 acting on the fixed seat 311, thereby reducing the convex deformation amount of the fixed seat 311 in the first direction Z1.

[0096] Furthermore, the torsion generated by the torsion assembly 330 can act on the rotating assembly 320 from the meshing point between the torsion assembly 330 and the rotating assembly 320, and since the rotating assembly 320 is rotationally connected to the fixed seat 311, the torsion generated by the torsion assembly 330 will indirectly act on the fixed seat 311, and cause the fixed seat 311 to be convexly deformed in the first direction Z1 near the meshing point between the torsion assembly 330 and the rotating assembly 320. Among them, the tensioning area 3121 of the tensioning member 312 can be located on the partial surface of the support surface 3111 near the meshing point between the torsion assembly 330 and the rotating assembly 320, and the connection area 3122 can be located on the partial surface of the support surface 3111 away from the meshing point between the torsion assembly 330 and the rotating assembly 320. Similarly, the deformation portion 31131 of the middle plate 3113 can be a partial area of ​​the middle plate 3113 close to the meshing place of the torsion assembly 330 and the rotation assembly 320, and the connection portion 31132 can be a partial area of ​​the middle plate 3113 away from the meshing place of the torsion assembly 330 and the rotation assembly 320. In this way, the tensioning area 3121 of the tensioning member 312 can specifically limit the part of the fixed seat 311 that is convex and deformed due to the torsion assembly 330, that is, the deformation portion 31131 of the middle plate 3113 is limited, so that the tension generated by the tensioning member 312 can achieve the optimal improvement effect.

[0097] Further, the number of torsion assemblies 330 can be multiple, and the multiple torsion assemblies 330 can be arranged on the fixed seat 311 in sequence along the rotation axis direction of the rotating assembly 320, and can abut and mesh with the rotating assembly 320 in the rotation axis direction of the rotating assembly 320. For example, the number of torsion assemblies 330 can be three, and the three torsion assemblies 330 can be arranged on the fixed seat 311 in sequence along the rotation axis direction of the rotating assembly 320, and can abut and mesh with the rotating assembly 320 in the rotation axis direction of the rotating assembly 320, so as to generate three torsion forces acting on the fixed seat 311 respectively, so that the fixed seat 311 near the meshing position of the three torsion assemblies 330 and the rotating assembly 320 is convexly deformed in the first direction Z1. At the same time, the number of tensioning areas 3121 can also be three, and the three tensioning areas 3121 can be symmetrically arranged with the meshing positions of the three torsion assemblies 330 and the rotating assembly 320, respectively, so as to specifically limit the local protrusion deformation of the fixed seat 311 due to the three torsion assemblies 330 (equivalent to the three deformation parts 31131). In this embodiment, the torsion assembly 330 can specifically abut and mesh with the transmission member M of the rotating assembly 320, and the number of the torsion assembly 330 can correspond to the number of the transmission members M.

[0098] In this embodiment, Fig.21 The curve L1 shown in the figure is the tendency of the fixed seat 311 to convexly deform in the first direction Z1 due to the torsion assembly 330, the curve L2 is the tendency of the fixed seat 311 to convexly deform in the second direction Z2 due to the tensioning member 312, and the straight line L3 can be a reference plane (equivalent to the support surface 3111). It can be seen that the tension generated by the tensioning member 312 can reversely compensate for the convex deformation of the fixed seat 311 in the first direction Z1, so as to offset at least part of the torsion applied to the fixed seat 311 in the first direction Z1, thereby reducing the convex deformation of the fixed seat 311 in the first direction Z1. It can be understood that the curve shown in the figure is only to reflect the deformation compensation of the fixed seat 311 by the tensioning member 312, and does not represent the actual deformation trend of the fixed seat 311.

[0099] The following description will only take the abutment and meshing of a single torque assembly 330 and a single transmission member M rotation assembly 320 as an example. Fig. 20 and Fig. 22As shown, the torsion assembly 330 can be arranged on the base 3112, and the torsion assembly 330 can include: an elastic member 331 and a cam 332. The elastic member 331 and the cam 332 can be sleeved on the rotating shaft 313, and the elastic member 331 can abut against the base 3112 and the cam 332 respectively. The cam 332 can be slidably arranged on the rotating shaft 313, and the cam 332 is located between the elastic member 331 and the rotating member 321, and can abut and mesh with the rotating member 321 in the direction of the rotating shaft of the rotating member 321. In this embodiment, the elastic member 331 can always be in an elastic deformation state to provide an elastic force acting on the cam 332, so that the cam 332 can abut against the rotating member 321. Furthermore, when the rotating member 321 rotates around the base 3112 so that the electronic device 10 is flattened, the rotating member 321 can generate a rotational force N1 in the direction of its rotation to be applied to the cam 332, and push the cam 332 to slide in the direction close to the elastic member 331, so as to further press the elastic member 331 to elastically deform. Accordingly, the elastic force generated by the elastic deformation of the elastic member 331 can also react on the rotating member 321 through the cam 332 to form a torsional force N2, so as to provide a damping feel for the rotation of the rotating member 321, and the torsional force N2 can also indirectly act on the base 3112 through the rotating member 321 and the rotating shaft 313.

[0100] Furthermore, since a partial area of ​​the rotating member 321 away from the rotating shaft 313 is connected to the first shell assembly 210 (the same applies to the second shell assembly 220) through the fixed bracket 323, and the first shell assembly 210 and the second shell assembly 220 will be locked after being flattened, the rotating member 321 cannot rotate in the opposite direction around the base 3112 under the action of the torque N2, which causes the torque N2 to only act on the base 3112 to form a lifting force F, and drive the base 3112 to lift up with the first shell assembly 210 and the second shell assembly 220 as the base points, so that the base 3112 drives the middle plate 3113 (deformation portion 31131) to convexly deform in the first direction Z1. Based on this, in this embodiment, a tensioning member 312 is arranged on the support surface 3111 of the middle plate 3113, and the tensioning member 312 can generate tension to act on the middle plate 3113 to offset at least part of the torsion N2 of the torsion assembly 330 acting on the base 3112 and the middle plate 3113, thereby reducing the amount of deformation of the fixed seat 311 protruding in the first direction Z1. It can be understood that the deformation force of the fixed seat 311 protruding in the first direction Z1 can be not only the torsion N2 shown in the above embodiment, but also external forces generated by other factors, such as the impact force generated when falling, etc. It is only necessary for the tensioning member 312 to generate tension to offset at least part of the external force received by the fixed seat 311 in the first direction Z1, and this embodiment does not limit this.

[0101] Please combine Fig. 22 See also Figure 23 to Figure 25 , Fig.23 yes Fig.10 The local enlarged schematic diagram of point E in the middle, Fig.24 yes Fig.10 A schematic diagram of a partial cross-sectional structure of the central rotating shaft mechanism 300 along V-V, Fig.25 yes Fig.11 Schematic diagram of the partial cross-sectional structure of the central rotating shaft mechanism 300 along line V-V.

[0102] like Fig. 22 As shown, since the tensioning member 312 will diffuse the local convex deformation of the fixed base 311 to the entire fixed base 311, so as to utilize the overall stiffness of the fixed base 311 to resist the local convex deformation of the fixed base 311, when the fixed base 311 is acted upon by the torsion N2 generated by the torsion assembly 330, in addition to the local part of the fixed base 311 acted upon by the torsion N2 will convexly deform in the first direction Z1, the fixed base 311 as a whole will also be lifted in the first direction Z1 by the torsion N2. At the same time, since the partial area of ​​the side plate 324 close to the middle plate 3113 overlaps with the edge of the middle plate 3113 parallel to the axis Y, and the partial area of ​​the side plate 324 away from the middle plate 3113 is also connected to the fixed bracket 323 (limited by the fixed bracket 323), when the fixed seat 311 (middle plate 3113) is raised in the first direction Z1, the partial area of ​​the side plate 324 overlapping the middle plate 3113 will also be raised, thereby causing the partial area of ​​the side plate 324 overlapping the middle plate 3113 to warp, which is not conducive to maintaining the flatness of the middle plate 3113 and the side plate 324. In order to solve the above technical problems, the hinge mechanism 300 provided in this embodiment may also include: a restraining component 340. Figure 23 to Figure 25 As shown, the restraint assembly 340 can be respectively connected to the partial area of ​​the side plate 324 close to the fixed seat 311, and at least one of the rotating member 321, the rotating member 322 and the fixed bracket 323. The restraint assembly 340 can generate a restraint force to act on the partial area of ​​the side plate 324 close to the middle plate 3113, and make the side plate 324 overlap the partial area on the middle plate 3113 and abut against the middle plate 3113 in the second direction Z2, so as to limit the lifting of the middle plate 3113 in the first direction Z1 by the restraint force, thereby reducing the warping of the side plate 324 due to the lifting of the middle plate 3113 in the first direction Z1, so as to achieve the purpose of maintaining the flatness of the side plate 324 and the middle plate 3113 after being flattened.

[0103] Further, the binding assembly 340 may include: an elastic binding member 341. The elastic binding member 341 may be connected to a portion of the side plate 324 close to the middle plate 3113 and the rotating member 322, respectively, and the elastic binding member 341 may be in an elastic deformation state to provide elastic force to form the aforementioned binding force. For example, the elastic binding member 341 may be connected to the rolling portion 3221 of the rotating member 322, and the latching structure 3244 on the side plate 324, respectively, and the latching structure 3244 may be provided on a portion of the side plate 324 close to the middle plate 3113, and may be arranged relative to the rolling portion 3221 in a direction away from the middle plate 3113. In this embodiment, the material of the elastic binding member 341 may be a soft elastic material such as rubber, thermoplastic polyurethane elastomer or silicone, and the latching structure 3244 may be formed on the side plate 324 by 3D printing or the like, and the material of the side plate 324 may be metal, such as stainless steel or titanium alloy. Through the above arrangement, since the rotating member 322 is connected to the fixed bracket 323 (restricted by the fixed bracket 323), the rotating member 322 will not be displaced under the elastic force generated by the elastic binding member 341, and the side plate 324 can be pressed against the edge of the middle plate 3113 under the binding force (elastic force) generated by the elastic binding member 341 to limit the lifting of the middle plate 3113 in the first direction Z1, thereby ensuring the flatness of the side plate 324 and the middle plate 3113 after flattening.

[0104] Further, the elastic binding member 341 can be arranged in a ring shape (such as an elastic ring), and the elastic binding member 341 can be arranged around the rolling portion 3221 and the locking structure 3244 to achieve the connection between the elastic binding member 341 and the rolling portion 3221 and the locking structure 3244. At the same time, the locking structure 3244 can include: a fixing portion 32441, an extension portion 32442 and a limiting portion 32443. Among them, the fixing portion 32441 is connected to a part of the side plate 324 close to the middle plate 3113, and is located on the side of the side plate 324 away from the display mechanism 100. One end of the extension portion 32442 is connected to the fixing portion 32441 and extends in a direction parallel to the axis Y, and the extension portion 32442 can be arranged opposite to the rolling portion 3221, and the elastic binding member 341 can be arranged around the rolling portion 3221 and the extension portion 32442. The limiting portion 32443 is connected to the other opposite end of the extension portion 32442 and is spaced apart from the side plate 324. The limiting portion 32443 can also be engaged with the elastic binding member 341 to prevent the elastic binding member 341 from falling out of the end of the extension portion 32442 away from the fixing portion 32441. Through the above arrangement, during the assembly process, the rolling portion 3221 can be first inserted into the rolling groove 32421 through the elastic binding member 341, and then the elastic binding member 341 can be pulled through the space between the limiting portion 32443 and the side plate 324, so that the elastic binding member 341 can be wound around the rolling portion 3221 and the extension portion 32442, so as to complete the assembly of the elastic binding member 341 with the rotating member 322 and the side plate 324. In some embodiments, the elastic binding member 341 may not be limited to an elastic ring. The elastic binding member 341 may also be other elastic structural members (elastic rope, etc.). It only needs that the elastic binding member 341 can be respectively connected to the rotating member 322 and the partial area of ​​the side plate 324 close to the middle plate 3113. This embodiment does not limit this.

[0105] Furthermore, since the side plate 324 rotates relative to the rotating member 322 driven by the fixed bracket 323, the distance between the extension portion 32442 and the rolling portion 3221 will change with the movement of the side plate 324, and the deformation of the elastic binding member 341 will also change with the change of the distance between the extension portion 32442 and the rolling portion 3221. When the rotating member 322 is in the first position, the side plate 324 is flattened with the middle plate 3113, the distance between the rolling portion 3221 and the extension portion 32442 is large, and the deformation of the elastic binding member 341 is also large. When the rotating member 322 is in the second position, the side plate 324 flips to the support surface 3111 of the middle plate 3113, the distance between the rolling portion 3221 and the extension portion 32442 is small, and the deformation of the elastic binding member 341 is also small. That is, the deformation amount of the elastic binding member 341 when the rotating member 322 is in the first position is greater than the deformation amount of the elastic binding member 341 when the rotating member 322 is in the second position. In this way, the elastic binding member 341 with a larger deformation amount can be used to bind the partial area of ​​the side plate 324 close to the middle plate 3113, while the elastic binding member 341 with a smaller deformation amount can be used to ensure that the elastic member 341 can be tightly bound to the rotating member 322 and the extension part 32442.

[0106] See also Figure 26 to Figure 28 , Fig.26 yes Figure 5 A schematic diagram of a partial cross-sectional structure of the middle housing mechanism 200 and the rotating shaft mechanism 300 along X-X, Fig. 27 yes Figure 5 A schematic diagram of a partial cross-sectional structure of the middle housing mechanism 200 and the rotating shaft mechanism 300 along V-V, Fig.28 yes Figure 5 Another partial cross-sectional structural diagram of the middle housing mechanism 200 and the rotating shaft mechanism 300 along V-V,

[0107] In some embodiments, the elastic binding member 341 may also be connected to a portion of the side plate 324 close to the middle plate 3113 and the fixing bracket 323 respectively. Fig.26As shown, one end of the elastic binding member 341 can be connected to a partial area of ​​the side panel 324 close to the middle panel 3113, and the fixed bracket 323 can be connected to the other end of the elastic binding member 341, and the elastic binding member 341 can generate the aforementioned binding force. Among them, the elastic binding member 341 can be an elastic plastic (such as thermoplastic polyurethane elastomer, silicone, latex and rubber) formed on the side panel 324 by liquid injection molding, and the material of the side panel 324 can be non-metallic (such as PA, LCP, Peek and its fiber-reinforced materials, etc.), fiber material (carbon fiber or glass fiber) or metal (aluminum alloy, stainless steel and titanium alloy, etc.). For example, a partial area of ​​the side panel 324 close to the middle panel 3113 can be formed by CNC processing to form at least one injection hole, and the elastic binding member 341 can be formed by the injection hole formed by liquid injection molding of elastic plastic to increase the contact area between the side panel 324 and the elastic binding member 341, thereby improving the bonding firmness of the side panel 324 and the elastic binding member 341. In this embodiment, the side panel 324 can preferably be made of fiber materials such as carbon fiber or glass fiber, so that the side panel 324 has the advantage of low density and is more suitable for the requirements of making the side panel 324 light and thin and capable of being molded or injection molded.

[0108] In some embodiments, when the material of the side panel 324 is non-metallic, in addition to being formed on the side panel 324 by injection molding, the elastic binding member 341 can also be formed by independent injection molding, and integrated with the side panel 324 by welding or other methods to achieve the connection between the side panel 324 and the elastic binding member 341. In some embodiments, in addition to being the aforementioned elastic plastic, the elastic binding member 341 can also be other elastic structural members, such as elastic ropes, cantilever beams or springs. At the same time, the connection method between the elastic binding member 341 and the side panel 324 can be the aforementioned injection molding method, or other detachable or non-detachable connection methods. It is only necessary that the elastic binding member 341 can be respectively connected to the partial area of ​​the side panel 324 close to the middle plate 3113 and the fixed bracket 323, and can generate the aforementioned binding force. This embodiment does not limit this.

[0109] Further, a boss 3234 is provided on the side of the fixed bracket 323 away from the side plate 324, and the boss 3234 is also inserted into the first shell assembly 210. The other end of the elastic binding member 341 can be sleeved on the boss 3234 and located between the fixed bracket 323 and the first shell assembly 210, and the fixed bracket 323 and the first shell assembly 210 jointly clamp the elastic binding member 341 to achieve a detachable connection between the elastic binding member 341 and the fixed bracket 323. That is, when the fixed bracket 323 is removed from the first shell assembly 210, the elastic binding member 341 can also be removed from the boss 3234, which is conducive to improving the detachability of the rotating shaft mechanism 300. Of course, in some embodiments, the fixed bracket 323 and the elastic binding member 341 can also be connected by other detachable or non-detachable methods such as bonding, clamping, welding or screw connection, which is not limited in this embodiment.

[0110] Furthermore, when the side plate 324 is turned over to the support surface 3111 of the middle plate 3113, the distance between the side plate 324 and the fixing bracket 323 can be gradually reduced, and the elastic binding member 341 can also enter a relaxed state from a stretched state to avoid the elastic binding member 341 being in a stretched state for a long time, thereby helping to reduce the risk of structural fatigue of the elastic binding member 341. At the same time, in order to avoid the elastic binding member 341 from restricting the turning of the side plate 324, when the elastic binding member 341 enters a relaxed state, the elastic binding member 341 can also be squeezed by the side plate 324 and the fixing bracket 323 to be in a compressed state, so as to provide an escape space for the movement of the side plate 324, thereby avoiding the elastic binding member 341 from restricting the turning of the side plate 324.

[0111] In some embodiments, when the side panels 324 are turned over to the support surface 3111 of the middle panel 3113, the elastic binding member 341 can still be in a stretched state, and is not limited to entering a relaxed state from a stretched state. The elastic binding member 341 only needs to be able to generate a binding force when the side panels 324 and the middle panel 3113 are flattened, and will not affect the turning of the side panels 324. This embodiment does not limit this. In some embodiments, in addition to the fixed bracket 334 being connected to the elastic binding member 341, the rotating member 321 can also be connected to the elastic binding member 341 ( Fig. 27 324 ), so that the elastic binding member 341 can generate the aforementioned binding force. The elastic binding member 341 can be an elastic rope, and the two ends of the elastic binding member 341 can be tied to the rotating member 321 and the side plate 324 respectively. Of course, there can be many ways to connect the elastic binding member 341, as long as the elastic binding member 341 can generate the aforementioned binding force, which will not be listed here in this embodiment.

[0112] In some embodiments, in addition to using the elastic binding member 341 to generate the aforementioned binding force, other structural members may also be used to generate the aforementioned binding force. Fig.28 As shown, the restraint assembly 340 may include: a first fitting member 342 and a second fitting member 343. The first fitting member 342 is disposed on a partial area of ​​the side plate 324 close to the middle plate 3113, and the second fitting member 343 is disposed on a partial area of ​​the rotating member 321 corresponding to the first fitting portion 342, and the orthographic projection of the second fitting member 343 on the side plate 324 also overlaps with the first fitting member 342, so that the first fitting member 342 and the second fitting member 343 can be arranged relative to each other and attract each other to form the aforementioned restraint force. For example, the first fitting member 342 and the second fitting member 343 are both magnetic members (magnets), or one of the first fitting member 342 and the second fitting member 343 is a magnetic member, and the other is an object that can be attracted by the magnetic member (such as a metal member, etc.), so that an attractive magnetic force (restraint force) can be formed between the first fitting member 342 and the second fitting member 343. In addition, when the side plate 324 is flipped over to the support surface 3111 of the middle plate 3113, the orthographic projection of the second matching piece 343 on the side plate 324 still overlaps or separates from the first matching piece 342. That is, when the side plate 324 is flipped over to the side of the middle plate 3113 away from the base 331, magnetic force may or may not be generated between the first matching piece 342 and the second matching piece 343.

[0113] In some embodiments, the binding assembly 340 may also simultaneously use an elastic binding member 341, a first matching member 342, and a second matching portion 343 to form the aforementioned binding force. For example, the binding assembly 340 may include not only two elastic binding members 341, but also a group of first matching members 342 and second matching portions 343. Among them, one elastic binding member 341 may be connected to a partial area of ​​the side plate 312 close to the middle plate 311 and a fixed bracket 334, respectively, while another elastic binding member 341 may be connected to a partial area of ​​the side plate 312 close to the middle plate 311 and a rotating member 322 (rolling portion 3221), respectively. At the same time, the first matching member 342 may be provided on a partial area of ​​the side plate 312 close to the middle plate 311, and the second matching portion 343 may be provided on a partial area of ​​the rotating member 321 corresponding to the first matching member 342. In this way, the binding assembly 340 may simultaneously use elastic force and magnetic force to form the aforementioned binding force. Of course, the number of the elastic binding members 341 and the number of the first matching members 342 and the second matching portions 343 can also be selected according to design requirements, and this embodiment does not limit this.

[0114] The rotating shaft mechanism 300 provided in the present application is provided with a torsion assembly 330 on the fixed seat 311, and the rotating assembly 320 rotatably connected to the fixed seat 311 is also in contact with and meshed with the torsion assembly 330, so that when the rotating assembly 320 rotates around the fixed seat 311, the torsion assembly 330 can generate torsion to provide a damping feeling for the rotation of the rotating assembly 320. At the same time, since the torsion generated by the torsion assembly 330 will also act on the fixed seat 311 when the rotating assembly 320 and the fixed seat 311 are flattened, a tensioning member 312 in a tensioned state is provided on the support surface 3111 of the fixed seat 311, and the tensioning member 312 can apply tension to the fixed seat 311 to offset at least part of the torsion applied by the torsion assembly 330 on the fixed seat 311, so that the convex deformation of the fixed seat 311 due to the torsion in the direction of the tensioning member 312 away from the support surface 3111 can be limited by the tensioning member 312. With such an arrangement, not only can the torsion assembly 330 be used to provide a damping feeling for the rotation of the rotating assembly 320 , but the tensioning member 312 can also be used to reduce the deformation of the fixing seat 311 caused by the torsion assembly 330 , thereby ensuring that the supporting surface 3111 of the fixing seat 311 has sufficient flatness to support the display mechanism 100 .

[0115] The above descriptions are only some embodiments of the present application, and do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A rotating shaft mechanism, characterized in that: The rotating shaft mechanism comprises: a fixed component, a rotating component and a torsion component; The fixed assembly includes: a fixed seat with a supporting surface and a tensioning member arranged on the supporting surface, and the tensioning member is in a tensioned state; the rotating assembly is rotatably connected to the fixed seat and is flattened with the fixed seat; the torsion assembly is arranged on the fixed seat, and abuts and meshes with the rotating assembly in the direction of the rotating axis of the rotating assembly.

2. The rotating shaft mechanism according to claim 1, characterized in that: The tensioning member comprises: a tensioning area and a connecting area; The tensioning zone is located on a portion of the surface of the support surface close to the meshing point between the rotating component and the torsion component, and the connecting zone is located on a portion of the surface of the support surface away from the meshing point between the rotating component and the torsion component, and the tension in the tensioning zone is greater than the tension in the connecting zone.

3. The rotating shaft mechanism according to claim 2, characterized in that: The rotating shaft mechanism has a plurality of the torsion components abutting against and meshing with the rotating component, and the plurality of the torsion components are sequentially arranged on the fixing seat along the rotating shaft direction of the rotating component; The number of the tensioning areas is the same as the number of groups of the torsion assemblies, and the plurality of tensioning areas are sequentially arranged on the support surface along the rotation axis direction of the rotating assembly and are arranged one-to-one correspondingly to the meshing locations of the plurality of torsion assemblies.

4. The rotating shaft mechanism according to claim 2, characterized in that: There are multiple tensioning areas, and the multiple tensioning areas are arranged on the support surface in sequence along the rotation axis direction of the rotating component; wherein the connecting area is connected between two adjacent tensioning areas.

5. The rotating shaft mechanism according to claim 2, characterized in that: The tensioning member has a plurality of fixing points connected to the fixing seat, and the number of the fixing points in the tensioning area is greater than the number of the fixing points in the connecting area.

6. The rotating shaft mechanism according to any one of claims 1 to 5, characterized in that: The tensioning piece is a metal sheet, the thickness of the tensioning piece is 0.01-0.05 mm, and the modulus of the tensioning piece is greater than or equal to 100 GPa.

7. The rotating shaft mechanism according to any one of claims 1 to 5, characterized in that: The tensioning piece is an inorganic film material, the thickness of the tensioning piece is 0.01-0.05 mm, and the modulus of the tensioning piece is greater than or equal to 3 GPa.

8. The rotating shaft mechanism according to claim 1, characterized in that: The rotating assembly includes: a rotating member, a rotating member, a fixed bracket and a side plate; The rotating member and the rotatable member are located on the same side of the fixed seat and are both rotatably connected to the fixed seat, and the rotation axis directions of the rotating member and the rotatable member are parallel; The fixed bracket is slidably connected to the rotating member and can slide relative to the rotating member in a direction close to or away from the fixed seat; the fixed bracket is also rotatably connected to the rotating member, and the fixed bracket is parallel to the rotation axis direction of the rotating member; The side plate is flattened with the fixing seat and is rotatably connected with the fixing bracket, and the rotation axis directions of the side plate and the fixing bracket are parallel; the side plate is rollingly connected with the rotating member.

9. The rotating shaft mechanism according to claim 8, characterized in that: The rotating shaft mechanism further comprises: a restraining assembly; The restraining assembly is respectively connected to a partial area of ​​the side plate close to the fixed seat, and at least one of the rotating member, the rotating member and the fixed bracket, and is configured to generate a restraining force acting on a partial area of ​​the side plate close to the fixed seat, so that the side plate and the fixed seat abut against each other in the direction in which the tensioning member is close to the support surface.

10. The rotating shaft mechanism according to claim 9, characterized in that: The restraint assembly comprises: an elastic restraint member; The elastic binding member is respectively connected to a partial area of ​​the side plate close to the fixing seat and the rotating member, and is in an elastic deformation state to generate the binding force.

11. The rotating shaft mechanism according to claim 10, characterized in that: The side plate has a protrusion located on a side of the rotating member away from the rotating member, and a rolling groove is formed on a side of the protrusion facing the rotating member; The rotating part has a rolling portion on the side facing the protruding portion, and one end of the rolling portion is rollingly arranged in the rolling groove; the partial area of ​​the side plate close to the fixed seat has a locking structure arranged opposite to the rolling portion, and the elastic binding member is wrapped around the rolling portion and the locking structure.

12. The rotating shaft mechanism according to claim 11, characterized in that: The positioning structure comprises: a fixing portion, an extending portion and a limiting portion; The fixing portion is connected to the side plate, one end of the extending portion is connected to the fixing portion and is arranged opposite to the rolling portion; the limiting portion is connected to the other opposite end of the extending portion and is arranged at a distance from the side plate; The elastic binding member is arranged in a ring shape and is wound around the rolling portion and the extending portion; the limiting portion can be engaged with the elastic binding member to limit the elastic binding member on the extending portion.

13. The rotating shaft mechanism according to claim 9, characterized in that: The rotating member can rotate around the fixed seat between a first position and a second position; when the rotating member is located at the first position, the side plate and the fixed seat are flat, and the elastic binding member is in an elastic deformation state; when the rotating member is located at the second position, the side plate flips onto the supporting surface, the ejection binding member is in an elastic deformation state, and the deformation amount is smaller than the deformation amount of the elastic binding member when the rotating member is located at the first position.

14. The rotating shaft mechanism according to claim 8, characterized in that: The fixing seat comprises: a base and a middle plate covering the base; The rotating member and the rotatable member are located on the same side of the base and are both rotatably connected to the base; the torsion assembly is arranged on the base and abuts against and meshes with the rotating member in the direction of the rotating axis of the rotating member; The side of the middle plate facing away from the base is the supporting surface, the side plate is flat with the middle plate, and a partial area of ​​the side plate overlaps the edge of the middle plate parallel to the rotation axis direction of the rotating part and is located on the side of the middle plate facing away from the base.

15. The rotating shaft mechanism according to claim 14, characterized in that: The fixing assembly further comprises: a rotating shaft arranged on the base; the torque assembly comprises: an elastic member and a cam sleeved on the rotating shaft; The rotating member is rotatably sleeved on the rotating shaft, the cam is slidably disposed on the rotating shaft, and the cam is located between the elastic member and the rotating member, and abuts against and meshes with the rotating member in the rotating shaft direction of the rotating member.

16. A fixing assembly, characterized in that: The fixing assembly comprises: a fixing seat and a tensioning member; the fixing seat has a supporting surface, and the tensioning member is arranged on the supporting surface and is in a tensioned state.

17. The fixing assembly according to claim 16, characterized in that: The fixing seat comprises: a base and a middle plate covering the base, and a side of the middle plate facing away from the base is a supporting surface.

18. The fixing assembly according to claim 17, characterized in that: The tensioning member comprises: a tensioning area and a connecting area; the middle plate comprises a deformation part and a connecting part; The tensioning zone is located on a portion of the surface of the support surface corresponding to the deformation portion, and the connecting zone is located on a portion of the surface of the support surface corresponding to the connecting portion. The tension of the tensioning zone is greater than the tension of the connecting zone.

19. The fixing assembly according to claim 18, characterized in that: The tensioning member has a plurality of fixing points connected to the middle plate, and the number of the fixing points in the tensioning area is greater than the number of the fixing points in the connecting area.

20. The fixing assembly according to any one of claims 16 to 19, characterized in that: The tensioning member is a metal diaphragm, the thickness of the tensioning member is 0.01-0.05mm, and the modulus of the tensioning member is greater than or equal to 100GPa; or, the tensioning member is an inorganic diaphragm, the thickness of the tensioning member is 0.01-0.05mm, and the modulus of the tensioning member is greater than or equal to 3GPa.

21. A rotating shaft mechanism, characterized in that: The rotating shaft mechanism comprises: a rotating assembly and a fixing assembly as described in any one of claims 16-20; wherein the rotating assembly is flattened with the fixing seat and is rotatably connected with the fixing seat.

22. An electronic device, characterized in that: The electronic device comprises: a housing mechanism and the hinge mechanism according to any one of claims 1 to 15; or, the electronic device comprises: a housing mechanism and the hinge mechanism according to claim 21; The shell mechanism comprises a first shell component and a second shell component divided along an axis; the fixed seat is arranged between the first shell component and the second shell component along the axis; the rotating components are arranged on opposite sides of the fixed seat parallel to the axis, and the first shell component and the second shell component are respectively connected to the rotating components on opposite sides of the fixed seat.

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