Rotating shaft mechanism and electronic equipment

Abstract

The invention provides a rotating shaft mechanism and electronic equipment, a rotating shaft assembly of the rotating shaft mechanism is used for connecting a first shell and a second shell of the electronic equipment, so that the first shell and the second shell rotate around a rotating axis of the rotating shaft assembly; the angle synchronization assembly is used for connecting the first shell and the second shell so that the first shell and the second shell can rotate synchronously. The angle synchronization assembly is connected with the rotating shaft assembly, can rotate based on the rotating axis and has a flattening position and a folding position; when located at the flattening position, the angle synchronization assembly is located on the same side of the rotating shaft assembly to form a supporting face; when the angle synchronizing assembly is located at the folding position, the angle synchronizing assembly is bent towards the rotating shaft assembly to form a containing space.

Description

Technical Field

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

[0002] Currently, foldable electronic devices require a hinge mechanism. Existing hinge mechanisms have different rotation axes, which causes the strength of the hinge mechanism to be affected and reduced, and the reliability of the hinge mechanism cannot be guaranteed. In addition, the existing hinge mechanism is not conducive to the formation of a storage space for accommodating a display area. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a hinge mechanism and an electronic device.

[0004] The embodiment of the present application adopts the following technical solution: a rotating shaft mechanism, comprising:

[0005] A rotating shaft assembly, used to connect a first shell and a second shell of an electronic device so that the first shell and the second shell rotate about a rotation axis of the rotating shaft assembly;

[0006] An angle synchronization component, used to connect the first shell and the second shell so that the first shell and the second shell rotate synchronously; the angle synchronization component is connected to the rotating shaft component and can rotate based on the rotating axis to have a flattened position and a folded position;

[0007] When in the flattened position, the angle synchronization assembly is located on the same side of the rotating shaft assembly to form a support surface;

[0008] When in the folded position, the angle synchronization component is bent toward the rotating shaft component to form an accommodating space.

[0009] In some embodiments, the angle synchronization component includes:

[0010] A first synchronization rod, wherein the first synchronization rod is fixedly connected to the rotating shaft assembly, and the first synchronization rod has a first rotating shaft and a second rotating shaft;

[0011] a first synchronous assembly, wherein the first synchronous assembly is hinged to the first rotating shaft;

[0012] a second synchronization component, the second synchronization component is hinged to the second rotating shaft, the second synchronization component is meshed with the first synchronization component and is symmetrically arranged with respect to the first synchronization rod, so that the first housing and the second housing can be synchronously flipped at the same flipping angle around the rotation axis of the rotating shaft component;

[0013] When in the flattened position, the first synchronization rod, the first synchronization assembly and the second synchronization assembly are at least partially coplanar for forming the support surface;

[0014] When in the folded position, the first synchronization component and the second synchronization component are bent based on the first synchronization rod to form the water drop-shaped accommodation space.

[0015] In some embodiments, the first synchronization component includes:

[0016] A first connecting member, wherein a first gear portion and a second gear portion are respectively disposed on opposite sides of the first connecting member, the first gear portion is hinged to the first rotating shaft, and the first gear portion is meshed with the second synchronization component;

[0017] a second synchronization rod, wherein the second synchronization rod has a third rotation shaft and a fourth rotation shaft, and the second gear portion is hinged to the third rotation shaft;

[0018] The second connecting member comprises a third gear part and a first guiding member, the third gear part is hinged to the fourth rotating shaft, and the meshing of the third gear part and the second gear part can synchronously drive the first guiding member to flip.

[0019] In some embodiments, the first synchronization component includes:

[0020] A first telescopic structural plate, wherein the first telescopic structural plate has an arc-shaped plate and a first guide cavity, and the first guide cavity is capable of guiding the first guide member to move in the first guide cavity;

[0021] A first shell connecting plate, wherein the first shell connecting plate is movably connected to the first telescopic structure plate, and the first shell connecting plate has an arc track, and the arc track can guide the arc plate to move within the arc track;

[0022] When in the flattened position, the first guide member is in a first guide position relative to the first guide cavity, the arc plate is in a first rotation position relative to the arc track, and the first telescopic structural plate is arranged close to the connecting end of the first guide member and forms part of the support surface;

[0023] When in the folded position, the first guide member is in a second guide position relative to the first guide cavity, the arc plate is in a second rotation position relative to the arc track, and the first telescopic structural plate is arranged away from the connection end of the first guide member to form the accommodating space.

[0024] In some embodiments, the first telescopic structural plate has a first structural surface and a second structural surface disposed opposite to each other, the first structural surface is used to form the supporting surface; the second structural surface is used to form the first guiding cavity;

[0025] The first shell connecting plate has a first connecting surface and a second connecting surface arranged at an angle, and the first connecting surface is connected to the arc track;

[0026] When in the flattened position, the second structural surface and the second connecting surface meet a parallel condition;

[0027] When in the folded position, the second structural surface and the first connecting surface meet the parallel condition.

[0028] In some embodiments, the rotating shaft assembly includes a first main shaft and a second main shaft, the rotation axes of the first main shaft and the second main shaft are arranged on the same rotation axis, the first main shaft and the second main shaft are symmetrically arranged relative to the first synchronization rod, the first synchronization assembly and the second synchronization assembly have the same structure and can be synchronously flipped at the same flipping angle relative to the rotation axis, thereby driving the first shell and the second shell to be synchronously flipped at the same flipping angle relative to the rotation axis.

[0029] The embodiment of the present application further provides an electronic device, including a first housing, a second housing and a rotating shaft mechanism, wherein the rotating shaft mechanism includes:

[0030] A rotating shaft assembly, connecting the first shell and the second shell, so that the first shell and the second shell rotate about the rotation axis of the rotating shaft assembly;

[0031] An angle synchronization component, connecting the first shell and the second shell to make the first shell and the second shell rotate synchronously;

[0032] The angle synchronization component is connected to the rotation axis component and can rotate based on the rotation axis to have a flattened position and a folded position, so that the electronic device has a corresponding flattened state and a folded state;

[0033] When in the flattened position, the angle synchronization assembly is located on the same side of the rotating shaft assembly to form a support surface;

[0034] When in the folded position, the angle synchronization component is bent toward the rotating shaft component to form an accommodation space.

[0035] In some embodiments, a display component is further included, the display component having a first display area, a second display area, and a target display area;

[0036] The first display area is connected to the first shell, the second display area is connected to the second shell, the target display area is located between the first display area and the second display area, and the target display area is arranged opposite to the rotating shaft mechanism;

[0037] When in the flattened state, the first shell and the second shell are coplanar, the angle synchronization component is located on the connection side of the display component to support the target display area, and the rotation axis of the rotation axis component is located on the display side of the display component;

[0038] When in the folded state, the first shell and the second shell are arranged relative to each other based on the rotation axis, and the accommodating space formed by the angle synchronization component bending toward the rotating shaft component is used to accommodate the target display area.

[0039] In some embodiments, two opposite sides of the first shell are respectively provided with a first connection part and a second connection part; two opposite sides of the second shell are respectively provided with a third connection part and a fourth connection part, the first connection part and the third connection part are hingedly connected through the first main shaft of the rotating shaft assembly; the second connection part and the fourth connection part are hingedly connected through the second main shaft of the rotating shaft assembly, and the rotation axes of the first main shaft and the second main shaft are arranged with the same rotation axis;

[0040] The first shell is fixedly connected to the first synchronization component of the angle synchronization component, and the second shell is fixedly connected to the second synchronization component of the angle synchronization component. The first synchronization component and the second synchronization component can be synchronously flipped at the same flipping angle relative to the rotation axis, thereby driving the first shell and the second shell to be synchronously flipped at the same flipping angle relative to the rotation axis.

[0041] In some embodiments, a limiting mechanism is provided on the first housing, a limiting portion adapted to the limiting mechanism is provided on the second housing, the limiting portion is connected to the rotating shaft assembly, and the limiting portion has at least one limiting groove and a limiting surface smoothly transitioned to the limiting groove;

[0042] The limiting mechanism located in the limiting groove has a first force, and the limiting mechanism located in the limiting surface has a second force, and the second force is greater than the first force. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0044] Figure 1 This is a schematic diagram of the split structure of the rotating shaft mechanism of this application;

[0045] Figure 2 This is a schematic diagram of the split structure of the first synchronization rod, the first connecting member and the third connecting member of the present application;

[0046] Figure 3 This is a schematic diagram of the structure after the first synchronization rod, the first connecting member and the third connecting member of the present application are assembled;

[0047] Figure 4 This is a schematic diagram of the structure of the first connecting member and the third connecting member of the present application after being bent at a certain angle relative to the first synchronization rod;

[0048] Figure 5 This is a schematic diagram of the structure of the first synchronization component and the second synchronization component of the present application after being bent at a certain angle relative to the first synchronization rod;

[0049] Figure 6 This is a schematic diagram of the assembled structure of the rotating shaft mechanism of this application;

[0050] Figure 7 This is a schematic structural diagram of the rotating shaft assembly and the first synchronization rod on the first housing and the second housing of the present application;

[0051] Figure 8 This is a schematic diagram of the structure when the rotating shaft mechanism of the present application connects the first shell and the second shell;

[0052] Fig. 9 This is a schematic diagram of the cross-sectional structure of the angle synchronization component of the present application when it is in a flattened position;

[0053] Figure 10(1) to Figure 10(3) This is a structural schematic diagram of the rotating shaft mechanism when the angle synchronization component is in a flattened position and the angle synchronization component is in a folded position in this application;

[0054] Fig.11 A schematic diagram of the three-dimensional structure of the electronic device of the present application;

[0055] Figure 12(1) to Figure 12(4) This is a schematic diagram of the structure of the electronic device of the present application when it changes from a flat state to a folded state;

[0056] Fig.13This is a schematic diagram of the structure when the target display area of ​​this application is located in the accommodation space;

[0057] Fig.14 This is a schematic diagram of the structure of the limiting mechanism and the limiting part of the present application when the electronic device is in a folded state;

[0058] Fig.15 This is a schematic diagram of the structure of the limiting mechanism and the limiting part of the present application when the electronic device is in a flattened state.

[0059] Reference numerals: 1, shaft mechanism;

[0060] 101, first main axis; 102, second main axis;

[0061] 11, first synchronization rod; 110, first rotation shaft; 1101, first rotation axis; 111, second rotation shaft; 1111, second rotation axis; 1113, second reference axis;

[0062] 12. first synchronization assembly; 121. first connecting member; 1211. first gear portion; 1212. second gear portion; 122. second synchronization rod; 1221. third rotating shaft; 1222. fourth rotating shaft; 123. second connecting member; 1231. third gear portion; 1232. first guide member;

[0063] 13. Second synchronization assembly; 131. Third connecting member; 1311. Fourth gear unit; 1312. Fifth gear unit; 132. Third synchronization rod; 133. Fourth connecting member; 1331. Sixth gear unit; 134. Second telescopic structure plate; 135. Second housing connecting plate; 136. First angle synchronization gear unit; 137. Second angle synchronization gear unit; 138. Third angle synchronization gear unit;

[0064] 14. Support surface; 15. Accommodation space;

[0065] 16, first telescopic structural plate; 161, first guiding cavity; 162, arc-shaped plate; 163, first structural surface; 164, second structural surface; 165, third structural surface; 166, fourth structural surface;

[0066] 17, first shell connecting plate; 171, arc track; 172, first connecting hole; 173, first connecting surface; 174, second connecting surface;

[0067] 2. Electronic equipment;

[0068] 21. first housing; 210. second connecting hole; 211. first connecting portion; 212. second connecting portion; 213. accommodating cavity;

[0069] 22, second housing; 221, third connection portion; 222, fourth connection portion; 2231, first limiting groove; 2232, second limiting groove; 224, limiting surface;

[0070] 23. Screw; 24. First display area; 25. Second display area; 26. Target display area; 27. Limit rod; 271. Rod portion; 272. Blocking portion; 28. Spring; 29. ​​Rotating shaft outer cover; 30. Display assembly. DETAILED DESCRIPTION

[0071] Various aspects and features of the present application are described herein with reference to the accompanying drawings.

[0072] It should be understood that various modifications may be made to the embodiments of the present application. Therefore, the above description should not be considered as limiting, but only as an example of an embodiment. Other modifications within the scope and spirit of the present application will occur to those skilled in the art.

[0073] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present application and, together with the general description of the present application given above and the detailed description of the embodiments given below, serve to explain the principles of the present application.

[0074] These and other characteristics of the present application will become apparent from the following description of a preferred form of embodiment given as a non-limiting example with reference to the accompanying drawings.

[0075] It should also be understood that although the present application has been described with reference to some specific examples, those skilled in the art will be able to readily implement many other equivalent forms of the present application.

[0076] The above and other aspects, features and advantages of the present application will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

[0077] Specific embodiments of the present application are described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments applied for are merely examples of the present application, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to avoid unnecessary or redundant details that obscure the present application. Therefore, the specific structural and functional details applied for herein are not intended to be limiting, but merely serve as a basis and representative basis for the claims to teach those skilled in the art to use the present application in a variety of ways with substantially any suitable detailed structure.

[0078] This specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," all of which may refer to one or more of the same or different embodiments according to the present application.

[0079] Folding electronic devices require a linkage system to synchronize the relative rotation angles of the two side shells and the middle shaft. The current shaft structure is composed of a set of shell connecting rod devices and a set of linkage swing arms, wherein the shell connecting rod device is responsible for connecting the two shells and the shaft of the electronic device, and the linkage swing arm is responsible for providing angle linkage and torque output for the opening and closing of the entire electronic device. The current shaft structure requires two systems (a set of shell connecting rod devices and a set of linkage swing arms) to realize the opening and closing of the entire machine, with more parts and greater tolerance accumulation, and no advantages in yield and cost. In addition, a sliding pair is required between the linkage swing arm and the shell connecting plate to connect, because the rotation axis of the connecting rod and the rotation axis of the linkage swing arm are not designed together. Even if the rotation axis of the connecting rod and the rotation axis of the linkage swing arm are designed together, due to the tolerance accumulation, the overall strength of the electronic device is greatly reduced due to the tolerance accumulation. In addition, the rotation axis of the connecting rod and the rotation axis of the linkage swing arm are designed together, and one of the connecting rod and the swing arm needs to change the rotation pair to a sliding pair to prevent over-constraint. The simple sliding pair design is more difficult to match parts in actual production, and the large contact area of ​​the slide groove brings friction and noise problems. Moreover, when the electronic device falls, the movement between the two shells of the electronic device will also increase due to the large assembly gap, which has a significant adverse effect on the overall reliability of the electronic device.

[0080] This application requires that the two shells of the electronic device be flipped about a rotation axis to ensure the strength and reliability of the electronic device.

[0081] After introducing the application scenarios and design concepts of the embodiments of the present application, the technical solutions provided by the embodiments of the present application are described below.

[0082] To solve the problem in the background technology, the embodiment of the present application provides a hinge mechanism, which is applied to an electronic device, and the electronic device is a foldable device, for example, the electronic device can be but not limited to a foldable mobile phone, etc., wherein the electronic device has a first shell and a second shell. The hinge mechanism can connect the first shell and the second shell.

[0083] The rotating shaft mechanism 1 may include a rotating shaft component and an angle synchronization component.

[0084] Among them, combined Figure 1 and Figure 8The rotating shaft assembly is used to connect the first shell 21 and the second shell 22 of the electronic device 2 so that the first shell 21 and the second shell 22 rotate about the rotation axis of the rotating shaft assembly. Here, the electronic device 2 can be folded up and down, or folded left and right, or folded in other directions. For example, when the electronic device 2 is folded up and down, the first shell 21 and the second shell 22 can be the upper shell and the lower shell of the electronic device 2 respectively; when the electronic device 2 is folded left and right, the first shell 21 and the second shell 22 can be the left shell and the right shell of the electronic device 2 respectively. The first shell 21 and the second shell 22 can rotate around the rotation axis of the rotating shaft assembly to achieve folding between the first shell 21 and the second shell 22. Among them, the rotating shaft assembly is a single-spindle structure, that is, the rotating shaft assembly has only one rotation axis. The first shell 21 and the second shell 22 rotate around the single rotation axis of the rotating shaft assembly, so that the overall strength and reliability of the electronic device 2 are improved.

[0085] The angle synchronization component is used to connect the first shell 21 and the second shell 22 of the electronic device 2 so that the first shell 21 and the second shell 22 can rotate synchronously. The angle synchronization component is also connected to the rotating shaft component and can rotate based on the rotation axis to have a flat position and a folded position. Of course, it can be understood that the folded position does not only refer to a folded position at a certain angle. The positions of the angle synchronization component other than the flat position can be understood as folded positions, and the degree of folding is different.

[0086] When the angle synchronization assembly is in the flattened position, the angle synchronization assembly is located on the same side of the rotating shaft assembly to form a support surface 14, which can be used to support at least part of the display area of ​​the electronic device 2, and the display area is used to display the content that the electronic device 2 needs to display.

[0087] When the angle synchronization assembly is in the folded position, the angle synchronization assembly bends toward the rotating shaft assembly to form an accommodating space 15, and the accommodating space 15 can be used to accommodate the display area of ​​the electronic device 2, so that when the electronic device 2 is folded, the display area of ​​the electronic device 2 can be adaptively accommodated by the accommodating space 15, thereby avoiding the display area of ​​the electronic device 2 from being rigidly folded to form creases, which affects the performance and appearance of the electronic device 2.

[0088] In some embodiments, in combination Figure 2 , Figure 3 , Figure 4 and Figure 5 The angle synchronization assembly includes a first synchronization rod 11, a first synchronization assembly 12 and a second synchronization assembly 13.

[0089] The first synchronization rod 11 is fixedly connected to the rotating shaft assembly, and the first synchronization rod 11 may have a first rotating shaft 110 and a second rotating shaft 111. For example, the rotating shaft assembly may include a first main shaft 101 and a second main shaft 102, and the rotation axes of the first main shaft 101 and the second main shaft 102 are arranged coaxially with the rotation axis. Taking the first shell 21 and the second shell 22 of the electronic device 2 as an example, the first main shaft 101 may be arranged between the first shell 21 and the second shell 22 and located at the left edge position of the first shell 21 and the second shell 22, and the second main shaft 102 may be arranged between the first shell 21 and the second shell 22 and located at the right edge position of the first shell 21 and the second shell 22. The first synchronization rod 11 may be a slender rod, and the two ends of the first synchronization rod 11 may be respectively fixed to a side of the first main shaft 101 facing the inner side of the electronic device 2 and a side of the second main shaft 102 facing the inner side of the electronic device 2.

[0090] Among them, combined Figure 7 , the rotation axis of the rotating shaft assembly is the first reference axis, the first synchronization rod 11 has a second reference axis 1113, and when the angle synchronization assembly is in the flattened position, the second reference axis 1113 and the first reference axis are located in the same reference plane, and the reference plane is perpendicular to the support surface 14. The first reference axis is arranged in parallel with the second reference axis 1113, and the spacing between the first reference axis and the second reference axis 1113 is the same when the angle synchronization assembly is in the flattened position and in the folded position, and the spacing between the first reference axis and the second reference axis 1113 remains unchanged.

[0091] Continuing with the above embodiment, the first main shaft 101 and the second main shaft 102 are symmetrically arranged relative to the first synchronization rod 11 , and the first main shaft 101 and the second main shaft 102 are located on a reference plane.

[0092] The first rotating shaft 110 and the second rotating shaft 111 of the first synchronous rod 11 can be symmetrically arranged relative to the reference plane. The first rotating shaft 110 can be a single shaft or include multiple sections of first sub-rotating shafts, and the rotation axes of the multiple sections of the first sub-rotating shafts are arranged with the rotation axis. Similarly, the second rotating shaft 111 can also be a single shaft or include multiple sections of second sub-rotating shafts, and the rotation axes of the multiple sections of the second sub-rotating shafts are arranged with the rotation axis. Specifically, the first rotating shaft 110 can have a first rotation axis 1101, and the first rotation axis 1101 is located on the first rotation axis of the first rotating shaft 110; the second rotating shaft 111 can have a second rotation axis 1111, and the second rotation axis 1111 can be on the second rotation axis of the second rotating shaft 111. Among them, the center line connecting the first rotating shaft axis and the second rotating axis is the second reference axis 1113.

[0093] The first synchronization component 12 is hinged to the first rotating shaft 110, the second synchronization component 13 is hinged to the second rotating shaft 111, the second synchronization component 13 is meshed with the first synchronization component 12 and is symmetrically arranged with respect to the first synchronization rod 11, or the second synchronization component 13 is meshed with the first synchronization component 12 and is symmetrically arranged with respect to the reference plane, so that the first housing 21 and the second housing 22 can be synchronously flipped at the same flipping angle around the rotation axis of the rotating shaft assembly.

[0094] In some embodiments, in combination Figure 4 and Figure 5 The first synchronization component 12 and the second synchronization component 13 have the same structure and are symmetrically arranged based on the second reference axis 1113, and are synchronously flipped based on the first reference axis or the second reference axis 1113 and have the same flipping angle; wherein the rotation axis of the rotating shaft assembly is the first reference axis; they are synchronously flipped at the same flipping angle, thereby driving the first shell and the second shell to be synchronously flipped at the same flipping angle relative to the rotation axis.

[0095] Here, the structure of the first synchronous component 12 is taken as an example for explanation. For example, the first synchronous component 12 is provided with a first meshing tooth portion on the side facing the second synchronous component 13, and the second synchronous component 13 is provided with a second meshing tooth portion on the side facing the first synchronous component 12, and the first meshing tooth portion meshes with the second meshing tooth portion. The first meshing tooth portion and the second meshing tooth portion can be provided as one along the rotation axis direction of the first rotating shaft 110 and the second rotating shaft 111, respectively, or the first meshing tooth portion and the second meshing tooth portion respectively include multiple meshing tooth portions. The rotation axis corresponding to the first meshing tooth portion is coaxial with the rotation axis of the first rotating shaft 110, and the rotation axis corresponding to the second meshing tooth portion is coaxial with the rotation axis of the second rotating shaft 111, so that the first synchronous component 12 and the second synchronous component 13 can be well assembled with the first rotating shaft 110 and the second rotating shaft 111, respectively.

[0096] like Figure 6 As shown in FIG10(1), when the angle synchronization assembly is in the flattened position, the first synchronization rod 11, the first synchronization assembly 12 and the second synchronization assembly 13 are at least partially coplanar for forming the support surface 14. For example, a side of the first synchronization assembly 12 away from the first synchronization rod 11 and a side of the second synchronization assembly 13 away from the first synchronization rod 11 may be formed with an inclined surface, and the inclined surface may avoid structures such as the display screen of the electronic device 2 when the angle synchronization assembly is transformed into the folded position. In addition, the first meshing tooth portion and the second meshing tooth portion of the first synchronization assembly 12 do not participate in the formation of the support surface 14.

[0097] As shown in FIG10 (3), when the angle synchronization component is in the folded position, the first synchronization component 12 and the second synchronization component 13 are bent based on the first synchronization rod 11 to form a water drop-shaped accommodation space 15. Alternatively, it can be understood that the first synchronization component 12 and the second synchronization component 13 are bent based on the reference plane to form a water drop-shaped accommodation space 15. The formed water drop-shaped accommodation space 15 can accommodate part of the display screen of the electronic device 2, so that the part of the display screen can be accommodated in the accommodation space 15 in the form of a smooth curve or a water drop shape, and the display screen will not be rigidly folded in half to form a crease due to the angle synchronization component being in the folded position, which can well protect the display screen of the electronic device 2.

[0098] In some embodiments, the first synchronization assembly 12 includes a first connection member 121 , a second synchronization rod 122 , and a second connection member 123 .

[0099] Wherein, the first gear portion 1211 and the second gear portion 1212 are respectively arranged on the opposite sides of the first connecting member 121, the first gear portion 1211 is hinged to the first rotating shaft 110, and the first gear portion 1211 is meshed with the second synchronization component 13. In combination with the above embodiment, a first meshing tooth portion can be arranged on the first gear portion 1211. For example, the second synchronization component 13 and the first synchronization component 12 are symmetrically arranged relative to the first synchronization rod 11. Specifically, the second synchronization component 13 has the same structure as the first synchronization component 12 and is symmetrically arranged relative to the reference plane. The second synchronization component 13 may include a third connecting member 131, a third synchronization rod 132, a fourth connecting member 133, a second telescopic structure plate 134 and a second shell connecting plate 135. Specifically, the third connecting member 131 has a fourth gear portion 1311 and a fifth gear portion 1312, and the fourth connecting member 133 has a sixth gear portion 1331. The fourth gear portion 1311 is meshed with the first gear portion 1211; the fifth gear portion 1312 is meshed with the sixth gear portion 1331. The meshing of the corresponding gear portions makes the various structural members of the first angle synchronization assembly and the corresponding structural members of the second angle synchronization assembly always symmetrical. The fourth gear portion 1311 is combined with the first gear portion 1211 to form a first angle synchronization gear unit 136, the second gear portion is combined with the third gear portion to form a second angle synchronization gear unit 137, and the fifth gear portion 1312 is combined with the sixth gear portion 1331 to form a third angle synchronization gear unit 138.

[0100] The second synchronization rod 122 has a third rotating shaft 1221 and a fourth rotating shaft 1222, and the second gear portion 1212 is hinged to the third rotating shaft 1221. The third rotating shaft 1221 and the fourth rotating shaft 1222 may be arranged in the same manner as the design of the first rotating shaft 110 and the second rotating shaft 111, or may be arranged differently. For example, compared with the first rotating shaft 110 and the second rotating shaft 111, when the third rotating shaft 1221 and the fourth rotating shaft 1222 include multiple sections, the number of sections corresponding to the third rotating shaft 1221 and the fourth rotating shaft 1222 may be greater, and of course, the third rotating shaft 1221 and the fourth rotating shaft 1222 may also be segmented as needed.

[0101] The second connecting member 123 has a third gear portion 1231 and a first guide member 1232 . The second connecting member 123 may be one or more. Specifically, it only needs the third gear portion 1231 on the second connecting member 123 to be compatible with the second gear portion 1212 on the first connecting member 121 .

[0102] The third gear portion 1231 is hinged to the fourth rotating shaft 1222 . The meshing of the third gear portion 1231 and the second gear portion 1212 can synchronously drive the first guide member 1232 to flip. The first guide member 1232 flips to adapt to the formation of the accommodating space 15 .

[0103] The first guide member 1232 may cooperate with the first housing, for example, a guide structure such as a guide cavity is provided on the first housing, and the guide cavity can guide the first guide member 1232 to move in the guide cavity. Of course, it is understandable that the first guide member 1232 may also be connected to the first housing through a transition structure, the transition structure is provided on the first housing, the guide cavity may be provided on the transition structure, and the first guide member 1232 is adapted to the guide cavity.

[0104] The first guide member 1232 may be a flat plate structure, and the first guide member 1232 has a certain length in the guiding direction, so that the first guide member 1232 can maintain a matching relationship with the guiding cavity during the formation of the teardrop-shaped receiving space 15, thereby adapting to the formation of the teardrop-shaped receiving space 15. Specifically, when the angle synchronization component is in the flattened position, the first guide member 1232 completely moves into the guiding cavity, and when the angle synchronization component is in the folded position and a complete teardrop-shaped receiving space 15 is formed, the first guide member 1232 still maintains a matching relationship with the guiding cavity.

[0105] For example, in some embodiments, the first synchronization assembly 12 includes a first telescopic structure plate 16 and a first housing connecting plate 17 .

[0106] The guide cavity can be provided on the first telescopic structural plate 16. For example, the first telescopic structural plate 16 has a first guide cavity 161 and an arc-shaped plate 162. The first guide cavity 161 can guide the first guide member 1232 to move in the first guide cavity 161. The shape and size of the first guide cavity 161 are adapted to the shape and size of the first guide member 1232, so as to avoid the first guide member 1232 from shaking in the first guide cavity 161 and affecting the guiding accuracy of the first guide member 1232, thereby ensuring the smooth movement of the hinge mechanism 1 and improving the use performance of the electronic device 2.

[0107] The arc plate 162 is a plate-like structure with a certain curvature. One end of the arc plate 162 is arranged on the first telescopic structural plate 16, and the other end of the arc plate 162 extends to a plate surface away from the first telescopic structural plate 16, and an opening is formed between the arc plate 162 and the first telescopic structural plate 16, and the opening faces a side away from the first connecting member 121.

[0108] The first shell connecting plate 17 is movably connected to the first telescopic structure plate 16. The first shell connecting plate 17 has an arc track 171. The arc track 171 can guide the arc plate 162 to move in the arc track 171. The arc track 171 is adapted to the arc plate 162 so that the arc plate 162 can move smoothly under the guidance of the arc track 171. The first shell connecting plate 17 can be fixedly connected to the first shell. Fig. 9 For example, the first shell connecting plate 17 may be provided with a first connecting hole 172, and the first shell may be provided with a second connecting hole 210 corresponding to the first connecting hole 172. The first shell and the second shell may be fixed to the first shell connecting plate 17 by means of a connecting structure such as a screw 23 in coordination with the first connecting hole 172 and the second connecting hole 210. Of course, it is understandable that the first shell connecting plate 17 may also be connected to the first shell in other ways, which is only taken as an example and does not constitute a limitation on the scope of protection of the claims.

[0109] When the angle synchronization assembly is in the flattened position, the first guide member 1232 is in the first guide position relative to the first guide cavity 161, the arc plate 162 is in the first rotation position relative to the arc track 171, and the first telescopic structural plate 16 is arranged near the connecting end of the first guide member 1232 and forms a part of the support surface 14. When the angle synchronization assembly is in the folded position, the first guide member 1232 is in the second guide position relative to the first guide cavity 161, the arc plate 162 is in the second rotation position relative to the arc track 171, and the first telescopic structural plate 16 is arranged away from the connecting end of the first guide member 1232 and forms an accommodation space 15.

[0110] Combination Figure 10(1) to Figure 10(3)Exemplarily, when the angle synchronization component is transformed into the folded position, the first telescopic structure plate 16 will rotate a certain angle along the first direction to adapt to the teardrop-shaped receiving space 15, and at the same time, the first guide member 1232 will move outward from the first guide cavity 161 until the angle synchronization component is completely folded and forms the teardrop-shaped receiving space 15, and the first guide member 1232 moves to the second guide position, at which time the end of the first guide member 1232 extending into the first guide cavity 161 moves to a position close to the opening of the first guide cavity 161; at the same time, the arc plate 162 will flip a certain angle and move into the arc track 171 to the second rotation position, at which time the arc plate 162 moves to the innermost end of the arc track 171. On the contrary, when the angle synchronization assembly changes from the folded position to the flattened position, the first telescopic structural plate 16 will rotate a certain angle along the second direction, and the arc plate 162 will move from the outside of the arc track 171 to the first guide position, at which time the end of the arc plate 161 away from the connection with the first telescopic structural plate 16 is at a certain distance from the innermost end of the arc track 171. At the same time, the first guide member 1232 will move into the first guide cavity 161 to the first guide position, at which time the first guide member 1232 can be fully extended into the first guide cavity 161. Among them, the second direction is opposite to the first direction. The plate surface of the first telescopic structural plate 16 opposite to the arc plate 162 is provided with an inclined surface, and the inclined surface is located on the side of the opening formed by the corresponding arc plate 162 and the first telescopic structural plate 16. The other part of the plate surface of the first telescopic structural plate 16 opposite to the arc plate 162 can be formed as a part of the support surface 14.

[0111] In some embodiments, the first telescopic structural plate 16 has a first structural surface 163 and a second structural surface 164 that are disposed opposite to each other, the first structural surface 163 is used to form the support surface 14, and the second structural surface 164 is used to form the first guide cavity 161. The first telescopic structural plate 16 also has a third structural surface 165, and the arc plate 162 is disposed on the third structural surface 165. Among them, the first structural surface 163 and the third structural surface 165 are disposed in parallel, and the first telescopic structural plate 16 also includes a fourth structural surface 166, which connects the first structural surface 163 and the third structural surface 165, and the fourth structural surface 166 is located on the side facing the second connecting member 123. The fourth structural surface 166 can be perpendicular to the first structural surface 163 and the third structural surface 165, the first guide cavity 161 can extend from the fourth structural surface 166 into the first telescopic structural plate 16, the opening of the first guide cavity 161 can be located on the fourth structural surface 166, and the first guide member 1232 can extend into the first guide cavity 161 from the opening located on the fourth structural surface 166.

[0112] The first shell connecting plate 17 has a first connecting surface 173 and a second connecting surface 174 arranged at an angle, and the first connecting surface 173 is connected to the arc track 171. For example, the first connecting surface 173 faces the third structural surface 165, and the second connecting surface 174 is a surface connected to the first shell. For example, in combination with the above embodiment, the first connecting hole 172 can be formed by extending the second connecting surface 174 into the first shell connecting plate 17.

[0113] When the angle synchronization assembly is in the flattened position, the first telescopic structural plate 16 flips over so that the arc plate 162 on the first telescopic structural plate 16 moves to the first rotation position relative to the arc track 171. At this time, the second structural surface 164 and the second connecting surface 174 meet the parallel condition, and there is an angle between the first connecting surface 173 and the second structural surface 164.

[0114] When the angle synchronization assembly is in the folded position, the first telescopic structural plate 16 flips in the opposite direction, so that the arc plate 162 on the first telescopic structural plate 16 moves to the second rotation position relative to the arc track 171. At this time, the second structural surface 164 and the first connecting surface 173 meet the parallel condition. At the same time, there is a certain angle between the second structural surface 164 and the second connecting surface 174.

[0115] In combination with the above embodiments, when the electronic device 2 is in a flattened state, the third connecting member 131 and the first connecting member 121, the third synchronization rod 132 and the second synchronization rod 122, the fourth connecting member 133 and the second connecting member 123, the second telescopic structural plate 134 and the first telescopic structural plate 16, and the second shell connecting plate 135 and the first shell connecting plate 17 are all symmetrically arranged based on the second reference axis; when the electronic device 2 is in a folded state, the third connecting member 131 and the first connecting member 121, the third synchronization rod 132 and the second synchronization rod 122, the fourth connecting member 133 and the second connecting member 123, the second telescopic structural plate 134 and the first telescopic structural plate 16, and the second shell connecting plate 135 and the first shell connecting plate 17 are all symmetrically arranged based on the first reference axis; the specific structure of the second synchronization component 13 and the connection and matching relationship between the various structural members included in the second synchronization component 13 are not repeated here.

[0116] The present application embodiment also provides an electronic device 2, such as Fig.11 As shown, the electronic device 2 includes a first housing, a second housing and a hinge mechanism 1. The electronic device 2 may be, but is not limited to, a foldable mobile phone or the like.

[0117] The rotating shaft mechanism 1 includes a rotating shaft component and an angle synchronization component.

[0118] Combination Figures 11 to 14, the rotating shaft assembly connects the first shell 21 and the second shell 22 so that the first shell 21 and the second shell 22 rotate about the rotating axis of the rotating shaft assembly. The first shell and the second shell are connected by a single rotating axis, and the overall strength is greatly reduced due to the influence of tolerance accumulation. The movement of the upper and lower shells during falling will also be greatly reduced due to the reduction of the assembly gap, which significantly improves the overall reliability. The electronic device 2 can be folded up and down, or folded left and right, or folded in other directions. For example, when the electronic device 2 is folded up and down, the first shell and the second shell can be the upper shell and the lower shell of the electronic device 2 respectively; the upper shell and the lower shell have only one rotating shaft, and when the electronic device 2 is folded left and right, the first shell 21 and the second shell 22 can be the left shell and the right shell of the electronic device 2 respectively. The first shell 21 and the second shell 22 can rotate around the rotating axis of the rotating shaft assembly to achieve folding between the first shell 21 and the second shell 22. Among them, the rotating shaft assembly is a single-spindle structure, that is, the rotating shaft assembly has only one rotating axis. The first housing 21 and the second housing 22 rotate around the single rotation axis of the rotating shaft assembly, so that the overall strength and reliability of the electronic device 2 are improved.

[0119] As shown in Figures 12(1) and 12(4), the angle synchronization component is connected to the rotating shaft component and can rotate based on the rotation axis to have a flattened position and a folded position, so that the electronic device 2 has a corresponding flattened state and a folded state. When the angle synchronization component is in the flattened position, the angle synchronization component is located on the same side of the rotating shaft component to form a support surface 14. When the angle synchronization component is in the folded position, the angle synchronization component is bent toward the rotating shaft component to form a receiving space 15.

[0120] Exemplarily, the angle synchronization component is used to connect the first shell 21 and the second shell 22 of the electronic device 2 so that the first shell 21 and the second shell 22 can rotate synchronously. The angle synchronization component is also connected to the rotation axis component and can rotate based on the rotation axis to have a flat position and a folded position. Figure 12(1) to Figure 12(4)As shown, of course, it can be understood that the folding position does not only refer to the folding position of a certain angle, and other positions of the angle synchronization component except the flattened position can be understood as folding positions, and the degree of folding is different. When the angle synchronization component is in the flattened position, the angle synchronization component is located on the same side of the rotating shaft component to form a support surface 14, and the support surface 14 can be used to support the display area of ​​the electronic device 2. When the angle synchronization component is in the folded position, the angle synchronization component is bent toward the rotating shaft component to form a receiving space 15, and the receiving space 15 can be used to receive the display area of ​​the electronic device 2, so that when the electronic device 2 is folded, the display area of ​​the electronic device 2 can be adaptively received by the receiving space 15, so as to avoid the display area of ​​the electronic device 2 from being rigidly folded and forming creases, thereby affecting the performance and appearance of the electronic device 2.

[0121] In some embodiments, the electronic device 2 further includes a display component 30, Fig.13 , the display component 30 has a first display area 24, a second display area 25 and a target display area 26. For example, the display component 30 may be a folding display screen or a flexible display screen, and the display screen has a first display area 24, a second display area 25 and a target display area 26. Here, the display screen may be integrated or may be composed of different sub-display screens.

[0122] The first display area 24 can be connected to the first shell, the second display area 25 can be connected to the second shell, the target display area 26 is located between the first display area 24 and the second display area 25, and the target display area 26 is arranged opposite to the hinge mechanism 1. The display screen can be arranged on the first shell and the second shell. Overall, the display screen can cover the upper surface of the first shell and the second shell, or the outer periphery of the display screen can be embedded in the first shell 21 and the second shell 22. There is a certain installation space between the first shell 21 and the second shell 22 for installing the hinge mechanism 1, especially for installing the angle synchronization component. The display area of ​​the display screen corresponding to the position of the installation space can be understood as the target display area 26.

[0123] When the angle synchronization component is in the flattened position, the angle synchronization component is located on the same side of the rotating shaft component to form a support surface 14, and the support surface 14 supports the display component 30 in a flattened state, and the target display area 26 is coplanar with the first display area 24 and the second display area 25. At this time, the electronic device 2 is in a flattened state, the first shell is coplanar with the second shell, and the angle synchronization component is located on the connection side of the display component 30 to support the target display area 26, that is, the support surface 14 is used to support the target display area 26. Of course, at this time, the coplanar surface formed by the first shell and the second shell is used to support the first display area 24 and the second display area 25. More specifically, the coplanar portion of the first shell and the second shell corresponding to the first shell is used to support the first display area 24, and the coplanar portion of the first shell and the second shell corresponding to the second shell is used to support the second display area 25.

[0124] When the electronic device 2 is in the flattened state, the rotation axis of the rotation axis assembly is located on the display side of the display assembly 30. For example, the rotation axis of the rotation axis assembly is coplanar with the display side of the display assembly 30, or the rotation axis of the rotation axis assembly is higher than the display side of the display assembly 30.

[0125] When the electronic device 2 is in a folded state, the first shell 21 and the second shell 22 are arranged relative to each other based on the rotation axis, and the accommodating space 15 formed by the angle synchronization component bending toward the rotation axis component is used to accommodate the target display area 26. The support surface 14 supports at least part of the target display area 26 to prevent the display component 30 from moving, and the first display area 24 and the second display area 25 are symmetrical and parallel to each other based on the reference plane. Here, when the electronic device 2 is in a fully folded state, it can also be understood that the electronic device 2 is in a closed state, at which time the first shell 21 can cover the second shell 22, and the first shell 21 can be parallel to the second shell 22.

[0126] For example, when the first shell 21 and the second shell 22 are arranged relative to each other based on the rotation axis, the target display area 26 is formed into a water drop shape and protrudes toward the angle synchronization component. At the same time, the accommodating space 15 formed by the angle synchronization component bending toward the rotation axis component can be a water drop shape accommodating space 15 to adapt to the target display area 26. Here, the display screen included in the display component 30 can be a flexible display screen.

[0127] In some embodiments, in combination Fig.11 The first shell 21 has two opposite sides with a first connection portion 211 and a second connection portion 212, respectively. The second shell 22 has two opposite sides with a third connection portion 221 and a fourth connection portion 222, respectively. The first connection portion 211 and the third connection portion 221 can be hinged through the first main shaft 101 of the rotating shaft assembly, and the second connection portion 212 and the fourth connection portion 222 can be hinged through the second main shaft 102 of the rotating shaft assembly. The rotation axes of the first main shaft 101 and the second main shaft 102 are arranged with the same rotation axis.

[0128] Taking the electronic device 2 as a foldable mobile phone as an example, the first housing 21 is the upper housing of the mobile phone, and the second housing 22 is the lower housing of the mobile phone. The left and right sides of the upper housing may be provided with a first connection portion 211 and a second connection portion 212, respectively, and the left and right sides of the lower housing may be provided with a third connection portion 221 and a fourth connection portion 222, respectively. The first main shaft 101 may be located at the left side of the mobile phone and hinged with the first connection portion 211 and the third connection portion 221; the second main shaft 102 may be located at the right side of the mobile phone and hinged with the second connection portion 212 and the fourth connection portion 222. The first connection part 211 may be located outside the third connection part 221, and the second connection part 212 may be located outside the fourth connection part 222; or, the first connection part 211 may be located inside the third connection part 221, and the second connection part 212 may be located inside the fourth connection part 222; or, the first connection part 211 may be located outside the third connection part 221, and the second connection part 212 may be located inside the fourth connection part 222. There is no specific limitation on the specific inner and outer positional relationship arrangement of the first connection part 211, the second connection part 212, the third connection part 221, and the fourth connection part 222.

[0129] At least part of the structure of the first connecting portion 211 and the second connecting portion 212 may be protruding from the display side of the display component 30, and the rotation axis of the rotating shaft component may be higher than the display side of the display component 30. This design method is more conducive to the angle synchronization component being folded toward the rotation axis to form an accommodating space 15 for accommodating the target display area 26.

[0130] The first housing is fixedly connected to the first synchronization component 12 of the angle synchronization component, and the second housing is fixedly connected to the second synchronization component 13 of the angle synchronization component. The first synchronization component 12 and the second synchronization component 13 can be synchronously flipped at the same flipping angle relative to the rotation axis, thereby driving the first housing and the second housing to be synchronously flipped at the same flipping angle relative to the rotation axis.

[0131] In some embodiments, in combination Fig.14 The first housing 21 is provided with a limiting mechanism, and the second housing 22 is provided with a limiting portion adapted to the limiting mechanism, the limiting portion is connected to the rotating shaft assembly, and the limiting portion has at least one limiting groove and a limiting surface 224 smoothly connected to the limiting groove 223. For example, in combination Fig.14 and Fig.15 The limiting portion includes two limiting grooves, which are a first limiting groove 2231 and a second limiting groove 2232. The first limiting groove 2231 and the second limiting groove 2232 are symmetrically arranged so that the electronic device can be turned 180 degrees. Fig.14When the electronic device 2 is in the folded state, the limiting mechanism is located in the second limiting groove 2232, combined with Fig.15 When the electronic device 2 is in the flattened state, the limiting mechanism is located in the first limiting groove 2231, so that when the limiting mechanism is located in the limiting groove, the electronic device 2 can maintain the corresponding folded state or flattened state respectively. The limiting mechanism has a first force when it is located in the limiting groove 223, and has a second force when it is located in the limiting surface 224, and the second force is greater than the first force. That is, when the electronic device 2 is in different states, the limiting mechanism can provide different supporting forces, so that the first shell and the second shell of the electronic device 2 can maintain the current state.

[0132] Exemplarily, the outer circumferences of the first connection portion 211, the second connection portion 212, the third connection portion 221 and the fourth connection portion 222 are provided with a limiting groove 223 and an arc-shaped limiting surface 224 smoothly transitioningly connected to the limiting groove 223. A receiving cavity 213 may be provided on the first shell. The limiting mechanism may include a limiting rod 27 and a spring 28, the spring 28 may be provided on the limiting rod 27, and the limiting mechanism is provided in the receiving cavity 213. In the process of the electronic device 2 being transformed into a flattened state or a fully folded state (closed state), the first end of the limiting rod 27 extends out of the receiving cavity 213 and moves from the limiting surface 224 to the limiting groove 223, and the spring 28 is transformed from a compressed state to an extended state, and the limiting mechanism is located in the limiting groove 223 and has a first acting force, so that the limiting rod 27 abuts against the limiting groove 223, thereby enabling the electronic device 2 to maintain the current state. When the electronic device 2 changes from a flattened state or a fully folded state to other states, the first end of the limit rod 27 moves from the limit groove 223 to the limit surface 224, the spring 28 is compressed, and the limit mechanism is located on the limit surface 224 and has a second force, which is greater than the first force, so that the first shell and the second shell of the electronic device 2 can maintain the current state of an angle between 0° and 180°, which can meet the user's viewing needs when the first display area 24, the second display area 25 and the target display area 26 are at a certain angle.

[0133] In some of these embodiments, again in combination with Fig.14 The limiting rod 27 may include a rod portion 271 and a blocking portion 272 arranged on the rod portion 271; the spring 28 is sleeved on the rod portion 271, one end of the spring 28 abuts against the blocking portion 272, and the other end of the spring 28 abuts against the inner wall of the accommodating cavity 213.

[0134] During the process of the electronic device 2 changing from a flattened state or a closed state to a state where the first shell and the second shell form an angle between 0° and 180°, the first end of the limit rod 27 moves from the limit groove 223 to the limit surface 224, and the limit rod 27 moves into the accommodating cavity 213. The blocking portion 272 applies a force to the spring 28 and compresses the spring 28. When the state where the first shell and the second shell form an angle between 0° and 180° changes to a flattened state or a closed state, the spring 28 stretches and pushes the limit rod 27 to move outward from the limit cavity through the blocking portion 272, so that the first end of the limit rod 27 can move from the limit surface 224 to the limit groove 223 again.

[0135] Of course, it is understandable that the limiting mechanism may also adopt other structural forms. For example, the limiting groove 223 may be provided on the rotating shaft assembly, for example, the limiting groove 223 is provided at the position where the first main shaft 101 is connected to the first housing and at the position where the second main shaft 102 is connected to the second housing.

[0136] In addition, the electronic device 2 may further include a shaft cover, which is disposed at a position between the first housing and the second housing corresponding to the shaft mechanism 1 to protect the shaft mechanism 1. In addition, when the electronic device 2 is in a closed state, the shaft cover is exposed. When the electronic device 2 is in a flattened state, the shaft cover can be hidden between the first housing and the second housing, which plays a role in aesthetics to a certain extent.

[0137] Multiple embodiments of the present application are described in detail above, but the present application is not limited to these specific embodiments. Those skilled in the art can make various variations and modifications to the embodiments based on the concept of the present application, and these variations and modifications should all fall within the scope of protection required by the present application.

Claims

1. A rotating shaft mechanism, comprising: A rotating shaft assembly, used to connect a first shell and a second shell of an electronic device so that the first shell and the second shell rotate about a rotation axis of the rotating shaft assembly; An angle synchronization component is used to connect the first shell and the second shell so that the first shell and the second shell rotate synchronously; the angle synchronization component is connected to the rotating shaft component and can rotate based on the rotating axis to have a flattened position and a folded position; When in the flattened position, the angle synchronization assembly is located on the same side of the rotating shaft assembly to form a support surface; When in the folded position, the angle synchronization component is bent toward the rotating shaft component to form an accommodating space.

2. The rotating shaft mechanism according to claim 1, wherein the angle synchronization component comprises: A first synchronization rod, wherein the first synchronization rod is fixedly connected to the rotating shaft assembly, and the first synchronization rod has a first rotating shaft and a second rotating shaft; a first synchronous assembly, wherein the first synchronous assembly is hinged to the first rotating shaft; a second synchronization component, the second synchronization component is hinged to the second rotating shaft, the second synchronization component is meshed with the first synchronization component and is symmetrically arranged with respect to the first synchronization rod, so that the first housing and the second housing can be synchronously flipped at the same flipping angle around the rotation axis of the rotating shaft component; When in the flattened position, the first synchronization rod, the first synchronization assembly and the second synchronization assembly are at least partially coplanar for forming the support surface; When in the folded position, the first synchronization component and the second synchronization component are bent based on the first synchronization rod to form the water drop-shaped accommodation space.

3. The rotating shaft mechanism according to claim 2, wherein the first synchronization component comprises: A first connecting member, wherein a first gear portion and a second gear portion are respectively disposed on opposite sides of the first connecting member, the first gear portion is hinged to the first rotating shaft, and the first gear portion is meshed with the second synchronization component; a second synchronization rod, wherein the second synchronization rod has a third rotation shaft and a fourth rotation shaft, and the second gear portion is hinged to the third rotation shaft; The second connecting member comprises a third gear part and a first guiding member, the third gear part is hinged to the fourth rotating shaft, and the meshing of the third gear part and the second gear part can synchronously drive the first guiding member to flip.

4. The rotating shaft mechanism according to claim 3, wherein the first synchronization component comprises: A first telescopic structural plate, wherein the first telescopic structural plate has an arc-shaped plate and a first guide cavity, and the first guide cavity is capable of guiding the first guide member to move in the first guide cavity; A first shell connecting plate, wherein the first shell connecting plate is movably connected to the first telescopic structure plate, and the first shell connecting plate has an arc track, and the arc track can guide the arc plate to move within the arc track; When in the flattened position, the first guide member is in a first guide position relative to the first guide cavity, the arc plate is in a first rotation position relative to the arc track, and the first telescopic structural plate is arranged close to the connecting end of the first guide member and forms part of the support surface; When in the folded position, the first guide member is in a second guide position relative to the first guide cavity, the arc plate is in a second rotation position relative to the arc track, and the first telescopic structural plate is arranged away from the connection end of the first guide member to form the accommodating space.

5. The rotating shaft mechanism according to claim 4, wherein the first telescopic structural plate has a first structural surface and a second structural surface disposed opposite to each other, the first structural surface is used to form the supporting surface; and the second structural surface is used to form the first guiding cavity; The first shell connecting plate has a first connecting surface and a second connecting surface arranged at an angle, and the first connecting surface is connected to the arc track; When in the flattened position, the second structural surface and the second connecting surface meet a parallel condition; When in the folded position, the second structural surface and the first connecting surface meet the parallel condition.

6. The rotating shaft mechanism according to claim 2, wherein the rotating shaft assembly includes a first main shaft and a second main shaft, the rotation axes of the first main shaft and the second main shaft are arranged on the same rotation axis, the first main shaft and the second main shaft are symmetrically arranged relative to the first synchronization rod, the first synchronization assembly and the second synchronization assembly have the same structure and can be synchronously flipped at the same flipping angle relative to the rotation axis, thereby driving the first shell and the second shell to be synchronously flipped at the same flipping angle relative to the rotation axis.

7. An electronic device, comprising a first housing, a second housing and a rotating shaft mechanism, wherein the rotating shaft mechanism comprises: A rotating shaft assembly, connecting the first shell and the second shell, so that the first shell and the second shell rotate about the rotation axis of the rotating shaft assembly; An angle synchronization component, connecting the first shell and the second shell to make the first shell and the second shell rotate synchronously; The angle synchronization component is connected to the rotation axis component and can rotate based on the rotation axis to have a flattened position and a folded position, so that the electronic device has a corresponding flattened state and a folded state; When in the flattened position, the angle synchronization assembly is located on the same side of the rotating shaft assembly to form a support surface; When in the folded position, the angle synchronization component is bent toward the rotating shaft component to form an accommodation space.

8. The electronic device according to claim 7, further comprising a display component, wherein the display component has a first display area, a second display area and a target display area; The first display area is connected to the first shell, the second display area is connected to the second shell, the target display area is located between the first display area and the second display area, and the target display area is arranged opposite to the rotating shaft mechanism; When in the flattened state, the first shell and the second shell are coplanar, the angle synchronization component is located on the connection side of the display component to support the target display area, and the rotation axis of the rotation axis component is located on the display side of the display component; When in the folded state, the first shell and the second shell are arranged relative to each other based on the rotation axis, and the accommodating space formed by the angle synchronization component bending toward the rotating shaft component is used to accommodate the target display area.

9. The electronic device according to claim 7 or 8, wherein two opposite sides of the first housing are respectively provided with a first connection portion and a second connection portion; two opposite sides of the second housing are respectively provided with a third connection portion and a fourth connection portion, the first connection portion and the third connection portion are hingedly connected via a first main shaft of the rotating shaft assembly; the second connection portion and the fourth connection portion are hingedly connected via a second main shaft of the rotating shaft assembly, and the rotation axes of the first main shaft and the second main shaft are arranged coaxially with the rotation axis; The first shell is fixedly connected to the first synchronization component of the angle synchronization component, and the second shell is fixedly connected to the second synchronization component of the angle synchronization component. The first synchronization component and the second synchronization component can be synchronously flipped at the same flipping angle relative to the rotation axis, thereby driving the first shell and the second shell to be synchronously flipped at the same flipping angle relative to the rotation axis.

10. The electronic device according to claim 7, wherein a limiting mechanism is provided on the first housing, and a limiting portion adapted to the limiting mechanism is provided on the second housing, the limiting portion is connected to the rotating shaft assembly, and the limiting portion has at least one limiting groove and a limiting surface smoothly transitionally connected to the limiting groove; The limiting mechanism located in the limiting groove has a first force, and the limiting mechanism located in the limiting surface has a second force, and the second force is greater than the first force.

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