CN115523221A

CN115523221A - Synchronous rotation mechanism and electronic device

Info

Publication number: CN115523221A
Application number: CN202210061704.4A
Authority: CN
Inventors: 张垚磊; 周国统; 严斌; 张翼鹤
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-12-27

Abstract

The embodiment of the application provides a synchronous rotating mechanism and an electronic device. The synchronous rotating mechanism at least comprises a support and a transmission assembly. The support member rotates about a first rotation axis to effect folding or unfolding. The support member includes a toggle portion. The transmission assembly includes a rotating member. The rotating part is arranged corresponding to the shifting part along the first rotating axis. The first axis of rotation intersects a projection of the second axis of rotation of the rotating member on the first plane. The first rotation axis and the second rotation axis are parallel to the first plane. The poking part rotates around the first rotating axis to drive the corresponding rotating part to rotate around the second rotating axis. The synchronous rotating mechanism provided by the embodiment of the application can ensure that the supporting piece can synchronously rotate to realize synchronous folding or synchronous unfolding, and ensure that the unfolding process or the folding process of the supporting piece is stable and smooth.

Description

Synchronous rotation mechanism and electronic device

Technical Field

The embodiment of the application relates to the technical field of terminals, in particular to a synchronous rotating mechanism and electronic equipment.

Background

With the explosive growth of electronic devices such as smart phones or tablet computers, the functions of the electronic devices are more and more. The different sizes of the display areas of the electronic devices may cause different experiences in the use of the related functions of the electronic devices. In order to meet the use requirements of users, the display area of the display screen of the electronic device is increasingly larger. However, when the area of the display screen is large, the whole size of the electronic device is large, and the electronic device is inconvenient to carry. With the development of display technology, flexible screens can be manufactured. Compared with the traditional screen, the flexible screen has remarkable advantages, for example, the flexible screen has the characteristics of being bendable, having flexibility and the like, so that the flexible screen can be applied to foldable electronic equipment to realize flexible change of a display area, and meanwhile, the folded electronic equipment is small in size and convenient to carry. For example, a foldable electronic device may include a support and a hinge. The two supporting pieces are respectively connected with the hinge. The two supports rotate relative to the hinge to achieve folding or unfolding, and the flexible screen can be folded or unfolded. However, in the process of folding or unfolding the electronic device, the two supporting pieces have the problem that the rotation is difficult to keep synchronous, so that the use convenience of the electronic device is poor.

Disclosure of Invention

The embodiment of the application provides a synchronous rotating mechanism and electronic equipment, which can ensure that a supporting piece can synchronously rotate so as to realize synchronous folding or synchronous unfolding, and ensure that the unfolding process or the folding process of the supporting piece is stable and smooth.

The application provides a synchronous rotating mechanism in a first aspect, which at least comprises a support and a transmission component.

The support member rotates about a first rotation axis to effect folding or unfolding. The support member includes a toggle portion. The transmission assembly includes a rotating member. The rotating part is arranged corresponding to the shifting part along the first rotating axis. The first axis of rotation intersects a projection of the second axis of rotation of the rotating member on the first plane. The first rotation axis and the second rotation axis are parallel to the first plane. The poking part rotates around the first rotating axis to drive the corresponding rotating part to rotate around the second rotating axis.

The synchronous rotating mechanism of the embodiment of the application can be applied to electronic equipment. The supporting piece can rotate around the first rotating axis to realize folding or unfolding, so that the flexible screen of the electronic equipment can be folded or unfolded, and the display area of the electronic equipment is changed. The support transmits power through the transmission assembly. The transmission assembly includes a rotating member. The poking part of each supporting part is correspondingly provided with a rotating part. When the stirring part rotates around the first rotating axis, the stirring part can stir the corresponding rotating part to rotate around the second rotating axis. In two adjacent support piece, when the rotation piece that a support piece corresponds rotated, the rotation piece that another support piece corresponds can keep synchronous rotation to support piece realizes synchronous rotation, with the realization synchronous folding or expand in step, and then guarantees that support piece's expansion process or folding process are stable, smooth-going, are favorable to guaranteeing the convenience of electronic equipment use, promote the experience satisfaction of use.

In one possible embodiment, the rotor comprises a guide. The toggle part is in sliding fit with the guide part. The shifting part rotates around the first rotating axis, and the shifting part and the guiding part slide relatively to drive the rotating part to rotate. The supporting piece and the rotating piece are connected simply, so that the use number of parts is reduced, and the assembly difficulty of the supporting piece and the rotating piece is reduced. The mode that the stirring part slides relatively to the guiding part can make more motion degrees of freedom between stirring part and the guiding part, guarantees that the relative motion process of stirring part and guiding part is stable, smooth-going.

In a possible embodiment, one of the toggle part and the guide part is a guide groove, and at least part of the other one is positioned in the guide groove.

In one possible embodiment, the guide is a guide groove. At least part of the toggle part is positioned in the guide part. When the portion of stirring rotated, the portion of stirring can slide and the rotation is rotated in the drive relative guide portion easily, was favorable to reducing the possibility that locking or jamming appear in portion of stirring and guide portion.

In one possible embodiment, the toggle portion includes a contact body. The outer surface of the contact body is a curved surface. The outer surface is in sliding fit with the guide portion. The outer surface of the contact body is a curved surface, so that on one hand, when the shifting part slides relative to the guide part, the shifting part and the guide part are not easy to impact and move; on the other hand, when the relative guide part of surface of contact rotated, the frictional resistance between stirring portion and the guide part was less to can exert less effort to support piece and can make stirring portion slide relative guide part, reduce the support piece and operate the degree of difficulty, reduce because of need exert great effort to support piece and lead to support piece to rotate the possibility that the instantaneous impact appears in-process.

In a possible embodiment, the inner wall of the guide is curved in cross-section. The surface of contact and the cross sectional shape phase-match of inner wall to the surface of contact can be with the contact laminating between the inner wall of guide part is good, is favorable to promoting the stationarity of power transmission between stirring portion and the guide part.

In one possible embodiment, the outer surface of the contact body is spherical. The cross section of the inner wall is arc-shaped, so that the friction resistance between the shifting part and the guiding part is further reduced, and the stability of power transmission between the shifting part and the guiding part is further improved.

In a possible embodiment, the toggle part comprises a contact body. The contact body is a cylinder. The outer peripheral surface of the contact body is in sliding fit with the guide portion. The contact body has a top surface facing the rotor and an inner wall of the guide portion. The top surface of contact and the guide portion between be in the not contact state, guarantee that the relative guide portion of stirring portion slip in-process can not appear the top surface of contact and support the condition of pressing in the inner wall of guide portion, reduce because of the top surface of contact supports to press in the inner wall of guide portion and lead to stirring portion and guide portion mutually the jamming for stirring portion can't drive the guide portion pivoted possibility.

In a possible embodiment, the support further comprises a support body and a boss. The support body has a screen support surface. The boss is arranged on one side of the support main body back to the screen support surface. The poking part is arranged at the end part of the boss far away from the support main body. The boss can increase the interval between stirring portion and the support main part for the turning radius between stirring portion and the first axis of rotation can corresponding increase. When the stirring part rotates around the first rotating axis, the rotating angle of the rotating part can be increased under the condition that the stirring part rotates by a unit angle.

In one possible embodiment, the toggle portion includes a base and a contact body. The base is arranged at the end part of the boss far away from the support main body. The contact body is arranged at the end part of the base, which faces the rotating piece. The contact body is in sliding fit with the guide portion. The base can increase the boss and rotate the interval between the piece, reduces the boss and rotates the piece and take place the position interference and lead to the unable possibility that drives the rotation piece and rotate preset position of portion of stirring.

In one possible embodiment, the base is a columnar structure. The first rotation axis intersects the projection of the central axis of the base on the second plane. The first rotation axis and the central axis are parallel to the second plane. The second axis of rotation intersects a projection of the central axis of the base on a third plane. The second rotation axis and the central axis are parallel to the third plane.

In one possible embodiment, the rotating member comprises a rotating wheel and a swing arm. The poking part drives the rotating wheel to rotate through the swing arm. The swing arm can enable the vertical distance between the contact position between the shifting part and the rotating part and the second rotating axis to be larger, so that on one hand, under the condition that the acting force of the shifting part on the swing arm is not changed, the torque generated by the rotating part is relatively larger, and the rotating part is more easily shifted by the shifting part; on the other hand, under the unchangeable condition of stirring portion turned angle, can be so that the swing range of swing arm is bigger to it is bigger to make to rotate wheel pivoted angle.

In a possible embodiment, a part of the swing arm is arranged protruding from the swivel wheel along the second swivel axis. Along the second axis of rotation, the thickness of swing arm is greater than the thickness of rotating the wheel. Consequently, the mechanical strength of swing arm is higher relatively, has better resistance to deformation performance to when stirring the portion and applying the effort to the swing arm, the swing arm is difficult for taking place to warp, guarantees to rotate the holistic structural stability, reduces because of the swing arm takes place to warp and leads to appearing locking or jamming's possibility between stirring portion and the swing arm.

In one possible embodiment, the support has a screen support surface. Along the second rotation axis, the surface of the rotation member is lower than the screen supporting surface. The flexible screen that sets up on the support piece has the interval with the surface that rotates the piece between to make flexible screen and rotation piece be in the contactless state, be favorable to reducing because of rotating the rotation and lead to rotating the possibility of piece scraping or fish tail flexible screen, in order to guarantee the structural integrity of flexible screen.

In one possible embodiment, the rotary part comprises meshing teeth. The rotating piece is in meshing transmission through the meshing tooth part. The rotating part is in meshing transmission through the meshing tooth part, so that on one hand, the rotating part can bear larger torque and is not easy to deform; on the other hand, the meshing tooth part of the rotating part can form limiting constraint, so that the rotating parts corresponding to the two supporting parts are not easy to slide relatively, and the possibility that the rotating angle of the rotating part corresponding to one supporting part is larger than that of the rotating part corresponding to the other supporting part is reduced.

In a possible embodiment, along the first rotation axis, the two opposite sides of the support are respectively provided with a toggle part and a transmission assembly. When the supporting piece rotates around the first rotating axis, the supporting piece can transmit power to the corresponding transmission assemblies through the shifting parts on the two sides simultaneously, so that the rotating pieces in the transmission assemblies on the two sides rotate, the stress balance of the supporting piece is favorably improved, and the stability and the smoothness of the rotating process of the supporting piece are improved.

In one possible embodiment, the support element has an intermediate receptacle. The poking part faces the middle accommodating part. At least part of the rotating member is disposed in the intermediate receiving portion. On one hand, the rotating part does not occupy the space outside the supporting part, which is beneficial to improving the structure compactness; on the other hand, the supporting piece can play a protective role to the transmission assembly, and the possibility that the transmission assembly is damaged due to the fact that an external structural piece impacts the transmission assembly is reduced.

In a possible implementation mode, relative to the middle point of the perpendicular line between two adjacent first rotating axes, the rotating part which is correspondingly arranged on one supporting piece and the rotating part which is correspondingly arranged on the other supporting piece are symmetrically arranged, so that when the two adjacent supporting pieces rotate, the stress of the rotating part is more balanced, the power transmission process is more stable, and the rotating process of the supporting pieces is stable and smooth.

In a possible embodiment, the projection of the first axis of rotation onto the same plane as the second axis of rotation is perpendicular.

In a possible embodiment, the toggle part is spaced from the first axis of rotation.

A second aspect of the present application provides an electronic device, which includes a hinge and the synchronous rotation mechanism of the above embodiments.

The synchronous rotating mechanism at least comprises a support and a transmission component. The support member rotates about a first rotation axis to effect folding or unfolding. The support member includes a toggle portion. The transmission assembly includes a rotating member. The rotating part is arranged corresponding to the shifting part along the first rotating axis. The first axis of rotation intersects a projection of the second axis of rotation of the rotating member on the first plane. The first rotation axis and the second rotation axis are parallel to the first plane. The poking part rotates around the first rotating axis to drive the corresponding rotating part to rotate around the second rotating axis. The support member is rotatably connected to the hinge. The support member rotates about a first rotation axis relative to the hinge to achieve folding or unfolding.

In one possible embodiment, the support has a screen support surface. The electronic device also includes a flexible screen. The flexible screen is arranged on one side of the screen supporting surface. The flexible screen covers the shifting part and the transmission assembly, so that when the electronic equipment is in an unfolded state, the shifting part and the transmission assembly cannot be observed from the outside of the electronic equipment, and the appearance attractiveness of the electronic equipment is improved.

In one possible implementation, the electronic device further includes a back cover. The hinge is arranged on one side of the back cover. The rotating piece is rotatably connected to the back cover.

In one possible embodiment, the rotor comprises a guide. The poking part is in sliding fit with the guiding part. The shifting part rotates around the first rotating axis, and the shifting part and the guide part slide relatively to drive the rotating part to rotate. The supporting piece and the rotating piece are connected simply, so that the use number of parts is reduced, and the assembly difficulty of the supporting piece and the rotating piece is reduced. The mode that the stirring part slides relatively to the guiding part can make more motion degrees of freedom between stirring part and the guiding part, guarantees that the relative motion process of stirring part and guiding part is stable, smooth-going.

In one possible embodiment, the guide portion is a guide groove. At least part of the toggle part is positioned in the guide part. When the portion of stirring rotated, the portion of stirring can slide and the rotation is rotated in the drive relative guide portion easily, was favorable to reducing the possibility that locking or jamming appear in portion of stirring and guide portion.

In one possible embodiment, the toggle portion includes a contact body. The outer surface of the contact body is a curved surface. The outer surface is in sliding fit with the guide portion. The outer surface of the contact body is a curved surface, so that on one hand, when the toggle part slides relative to the guide part, the conditions of impact and movement are not easy to occur between the toggle part and the guide part; on the other hand, when the relative guide part of surface of contact rotated, the frictional resistance between stirring portion and the guide part was less to can exert less effort to support piece and can make stirring portion slide relative guide part, reduce the support piece and operate the degree of difficulty, reduce and exert great effort and lead to support piece to rotate the possibility that the in-process appears instantaneous impact because of needs.

In one possible embodiment, the outer surface of the contact body is spherical. The cross section of the inner wall is arc-shaped, so that the friction resistance between the shifting part and the guide part is further reduced, and the stability of power transmission between the shifting part and the guide part is further improved.

In one possible embodiment, the toggle portion includes a contact body. The contact body is a cylinder. The outer peripheral surface of the contact body is in sliding fit with the guide portion. The contact body has a top surface facing the rotor and an inner wall of the guide portion. The top surface of contact and the guide portion between be in the not contact state, guarantee that the relative guide portion of stirring portion slip in-process can not appear the top surface of contact and support the condition of pressing in the inner wall of guide portion, reduce because of the top surface of contact supports to press in the inner wall of guide portion and lead to stirring portion and guide portion mutually the jamming for stirring portion can't drive the guide portion pivoted possibility.

In a possible embodiment, the support further comprises a support body and a boss. The support body has a screen support surface. The boss is arranged on one side of the support main body back to the screen support surface. The poking part is arranged at the end part of the boss far away from the support main body. The boss can increase the interval between stirring portion and the support subject for the turning radius between stirring portion and the first axis of rotation can corresponding increase. When the stirring part rotates around the first rotating axis, the rotating angle of the rotating part can be increased under the condition that the stirring part rotates by a unit angle.

In one possible embodiment, the toggle portion includes a base and a contact body. The base is arranged at the end part of the boss far away from the support main body. The contact body is arranged at the end part of the base, which faces the rotating piece. The contact body is in sliding fit with the guide part. The base can increase the boss and rotate the interval between the piece, reduces the boss and rotates the piece and take place the position interference and lead to the unable possibility that drives the rotation piece and rotate preset position of portion of stirring.

In one possible embodiment, the rotating member includes a rotating wheel and a swing arm. The poking part drives the rotating wheel to rotate through the swing arm. The swing arm can enable the contact position between the shifting part and the rotating part to be larger in vertical distance with the second rotating axis, so that on one hand, under the condition that the acting force of the shifting part on the swing arm is not changed, the torque generated by the rotating part is relatively larger, and the rotating part is easier to shift by the shifting part; on the other hand, under the unchangeable condition of stirring portion turned angle, can be so that the swing range of swing arm is bigger to it is bigger to make to rotate wheel pivoted angle.

In one possible embodiment, the support has a screen support surface. Along the second rotation axis, the surface of the rotation member is lower than the screen supporting surface. The flexible screen that sets up on the support piece has the interval with rotating between the surface of piece to make flexible screen and rotation piece be in contactless state, be favorable to reducing because of rotating the rotation and lead to rotating the possibility of piece scraping or fish tail flexible screen, in order to guarantee the structural integrity of flexible screen.

In one possible embodiment, the support element has an intermediate receptacle. The poking part faces the middle accommodating part. At least part of the rotation member is disposed in the intermediate accommodation portion. On one hand, the rotating part does not occupy the space outside the supporting part, thereby being beneficial to improving the structure compactness; on the other hand, the supporting piece can play a role in protecting the transmission assembly, and the possibility that the transmission assembly is damaged due to the fact that an external structural piece impacts the transmission assembly is reduced.

Drawings

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 2 is a schematic partial exploded view of an electronic device according to an embodiment of the disclosure;

fig. 3 is a schematic partial structure diagram of an electronic device according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of an electronic device in a half-folded state according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of an electronic device in a folded state according to an embodiment of the present application;

FIG. 6 is a schematic top view of a hinge, a support member and a transmission assembly according to an embodiment of the present disclosure;

FIG. 7 is an enlarged schematic view at A in FIG. 6;

FIG. 8 is a perspective view of a hinge, a support member, and a transmission assembly according to an embodiment of the present disclosure;

FIG. 9 is a partially exploded view of the hinge, support member and drive assembly provided in the embodiment of FIG. 8;

FIG. 10 is a schematic view of a rotor according to an embodiment of the present disclosure;

FIG. 11 is a partially exploded view of a support member and a transmission assembly according to an embodiment of the present disclosure;

FIG. 12 is an enlarged view of B in FIG. 11;

fig. 13 is a schematic partial structure diagram of an electronic device according to another embodiment of the present application;

FIG. 14 is a schematic view of a folded support member and linkage of a drive assembly according to an embodiment of the present application;

fig. 15 is a schematic partial structure diagram of an electronic device according to another embodiment of the present application;

fig. 16 is a schematic partial structure diagram of an electronic device according to still another embodiment of the present application.

Reference numerals:

10. an electronic device;

20. a flexible screen; 201. a first display area; 202. a second display area; 203. a third display area;

30. a back cover;

40. a hinge;

50. a support member; 50a, a screen support surface; 50b, an intermediate accommodating portion;

51. a toggle part; 511. a contact body; 512. a base; 512a, central axis;

52. a support body;

53. a boss; 531. a bevel;

60. a middle frame;

70. a transmission assembly;

71. a rotating member; 71a, a guide part; 71b, meshing teeth; 711. a rotating wheel; 712. swinging arms;

100. a rotating shaft;

s1, a first rotation axis;

s2, a second rotation axis.

Detailed Description

The electronic device in the embodiment of the present application may be referred to as a User Equipment (UE) or a terminal (terminal), for example, the electronic device may be a tablet computer (PAD), a Personal Digital Assistant (PDA), a handheld device with a wireless communication function, a computing device, a vehicle-mounted device, a wearable device, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in city (smart city), a wireless terminal in smart home (smart home), or a fixed wireless terminal. The form of the terminal device is not particularly limited in the embodiment of the present application.

In the embodiment of the present application, fig. 1 schematically shows a structure of an electronic device 10 according to an embodiment. Referring to fig. 1, an electronic device 10 is taken as an example of a handheld device with a wireless communication function. The wireless communication enabled handset may be, for example, a cell phone. For example, the cell phone may be a foldable cell phone comprising a flexible screen.

Fig. 2 schematically shows a partially exploded structure of the electronic device 10 of an embodiment. Fig. 3 schematically shows a partial structure of the electronic device 10 of an embodiment. Referring to fig. 2 and 3, the electronic device 10 includes a flexible screen 20, a back cover 30, a hinge 40, a support 50, and a middle frame 60. The hinge 40 is provided at one side of the back cover 30. The two supports 50 may be arranged side by side. The two supports 50 may be rotatably connected to the hinges 40, respectively. The two supporting members 50 can be respectively turned and folded with respect to the hinge 40. In some examples, the support 50 connects the middle frame 60 with the hinge 40. When the two supports 50 are away from each other from the stacked state and the two supports 50 are rotated to be unable to rotate, the electronic device 10 is in the unfolded state. At this time, the flexible screen 20 is unfolded, so that the electronic apparatus 10 has a large display area.

The flexible screen 20 has a display area for displaying image information. The flexible screen 20 may be disposed on one side of the two middle frames 60. The flexible screen 20 may cover the support 50. The display area of the flexible screen 20 is exposed to facilitate presentation of image information to a user. The flexible screen 20 includes a first display area 201, a second display area 202, and a third display area 203. The first display area 201 may be provided corresponding to one of the middle frames 60. The second display area 202 may be provided corresponding to another middle frame 60. The third display region 203 may be provided corresponding to the back cover 30 and the hinge 40. The flexible screen 20 itself has a bending property and can be deformed by an external force. When the two supports 50 are in the folded state, the middle frame 60 is in the folded state and the flexible screen 20 is in the bent state. The first display area 201 and the second display area 202 of the flexible screen 20 are adjacent to each other, and the third display area 203 may be bent into an arc state. When the two supports 50 are in the unfolded state, the middle frame 60 is in the unfolded state and the flexible screen 20 is in the unfolded state, so that the first display area 201, the second display area 202 and the third display area 203 assume a flat state.

Fig. 4 schematically shows the structure of the electronic apparatus 10 in a half-folded state. Fig. 5 schematically shows the folded configuration of the electronic device 10. Referring to fig. 4 and 5, when the two supporting members 50 approach each other, the electronic device 10 is transited from the unfolded state to the folded state. When the two supporting members 50 are stacked on each other and cannot rotate, the electronic apparatus 10 is in a folded state. Illustratively, when the electronic device 10 is in the folded state, the two supporting members 50 are stacked to present a two-layer structure.

It should be noted that when the two supports 50 are far away from each other from the stacked state and the two supports 50 are rotated to be unable to rotate, the electronic device 10 is in the unfolded state. The process of the two supports 50 from the folded state to the unfolded state is the unfolding process, and from the unfolded state to the folded state is the folding process.

Therefore, the electronic device 10 according to the embodiment of the present application can change its overall size by folding or unfolding, and can have a larger display area in the unfolded state.

Fig. 4 and 5 schematically show that the electronic device 10 of the embodiment of the present application includes two middle frames 60. The electronic device 10 of the embodiment of the present application may also include more than three middle frames 60. Two adjacent middle frames 60 may be connected by the support members 50 and the hinges 40 so that each middle frame 60 can be folded or unfolded. When the electronic device 10 is in the folded state, the middle frames 60 may be stacked to form a multi-layer structure. When the electronic device 10 is in the unfolded state, each of the middle frames 60 assumes a flat state.

In the related art, when the user uses the electronic device 10, the support 50 in the folded state is gradually unfolded by applying a force to the support 50, or the support 50 in the unfolded state is gradually folded. Since the two adjacent supporting members 50 can be rotated and folded independently relative to the hinge 40, the two adjacent supporting members 50 are not easy to be synchronized during the unfolding or folding process of the two adjacent supporting members 50 during the use process of the electronic device 10, so that there is a case that one supporting member 50 is completely unfolded or folded and the other supporting member 50 is not completely unfolded or folded, which results in that the user needs to individually adjust the incompletely unfolded or incompletely folded supporting member 50 to completely unfold or fold the supporting member 50, thereby adversely affecting the convenience and the experience satisfaction degree of the use process of the electronic device 10.

The electronic apparatus 10 of the embodiment of the present application includes a synchronous rotation mechanism. The supporting pieces 50 in the synchronous rotating mechanism can rotate synchronously, so that the two adjacent supporting pieces 50 can rotate synchronously, the unfolding or folding process of the supporting pieces 50 is stable and smooth, the convenience of the electronic equipment 10 in the using process is guaranteed, and the experience satisfaction degree of the using process is improved.

The following explains an implementation of the synchronous rotating mechanism provided in the embodiment of the present application.

Fig. 6 schematically shows a top view of the connection state of the hinge 40, the support 50 and the transmission assembly 70 according to an embodiment. Referring to fig. 6 and 7, the synchronous rotating mechanism of the embodiment of the present application includes a support 50 and a transmission assembly 70.

The support member 50 of the embodiment of the present application may be rotated about the first rotation axis S1 to achieve folding or unfolding. In some implementations, the support 50 has a rotation axis, and the support 50 rotates relative to the rotation axis, in which case the first rotation axis S1 refers to an axis of the rotation axis. In embodiments where a synchronous rotation mechanism is used with electronic device 10, support 50 folds or unfolds in synchronization with flexible screen 20. The synchronous rotation mechanism may include more than two supports 50. In the adjacent supporting members 50, the first rotation axis S1 of one supporting member 50 and the first rotation axis S1 of the other supporting member 50 may be parallel to each other such that the first rotation axis S1 of one supporting member 50 and the first rotation axis S1 of the other supporting member 50 have a predetermined interval therebetween. The predetermined interval refers to the length of a perpendicular line segment between the two first rotation axes S1.

The support 50 comprises a toggle part 51. When the supporting member 50 rotates around the first rotation axis S1, the toggle part 51 of the supporting member 50 also rotates around the first rotation axis S1 at the same time, and forms a predetermined movement track. Illustratively, the motion track of the toggle part 51 rotating around the first rotation axis S1 may be a circular arc. Illustratively, the toggle part 51 of the support 50 may have a space from the first rotation axis S1.

In some implementations, the synchronous rotation mechanism of the embodiments of the present application is applied to the electronic device 10, so that the electronic device 10 can be folded or unfolded. Two adjacent supporting pieces 50 may be respectively connected to the hinges 40. The support member 50 is rotatably connected to the hinge 40. The support 50 can rotate with respect to the hinge 40. The support 50 rotates about the first rotation axis S1 with respect to the hinge 40 to achieve folding or unfolding. In some realizable manners, the support 50 is rotatably connected with the hinge 40 through a rotating shaft, and the support 50 rotates relative to the rotating shaft, at this time, the first rotating axis S1 is coincident with the axis of the rotating shaft. Illustratively, the support 50 has the rotational axis, and the hinge 40 has an axial hole. The rotation shaft of the support member 50 is fitted in the shaft hole of the hinge 40 so that the rotation shaft can rotate in the shaft hole.

The transmission assembly 70 includes a rotary member 71. The rotation member 71 is disposed along the first rotation axis S1 corresponding to the dial portion 51. It should be noted that, the arrangement of the rotating element 71 corresponding to the toggle part 51 of the supporting element 50 along the first rotation axis S1 means that the position of the rotating element 71 corresponds to the position of the toggle part 51 along the first rotation axis S1.

In some realizable manners, the supporting piece 50 is correspondingly provided with a rotating piece 71. During the process of folding or unfolding two adjacent supporting members 50, the supporting members 50 can transmit power through the transmission assembly 70 and realize synchronous rotation. Illustratively, the respective toggle parts 51 of two adjacent supporting pieces 50 can be connected with the corresponding rotating pieces 71.

Fig. 8 schematically shows a three-dimensional structure of the hinge 40, the supporting member 50 and the driving assembly 70 in a connected state according to an embodiment. Fig. 9 schematically illustrates a partially exploded structure of the hinge 40, the support 50, and the driving assembly 70 according to an embodiment. Referring to fig. 8 and 9, the rotation member 71 has a second rotation axis S2. The first rotation axis S1 intersects the projection of the second rotation axis S2 of the rotation member 71 on the first plane, that is, the first rotation axis S1 and the projection of the second rotation axis S2 on the first plane have an included angle therebetween, and the included angle is greater than 0 ° and less than or equal to 90 °, so that the first rotation axis S1 and the second rotation axis S2 are not parallel.

Illustratively, the first rotation axis S1 and the second rotation axis S2 are both parallel to the first plane.

In some realizable manners, the projections of the first rotation axis S1 and the second rotation axis S2 on the first plane may be perpendicular to each other, i.e. the included angle between the first rotation axis S1 and the second rotation axis S2 is equal to 90 °. When the electronic device 10 is in the unfolded state, the thickness direction of the electronic device 10 is parallel to the second rotation axis S2, and the second rotation axis S2 may be perpendicular to the flexible screen 20.

In some realizable manners, the second rotation axis S2 of the rotation piece 71 corresponding to one support piece 50 has a spacing from the second rotation axis S2 of the rotation piece 71 corresponding to the other support piece 50. In some examples, the second rotation axis S2 of the rotation member 71 corresponding to one support member 50 and the second rotation axis S2 of the rotation member 71 corresponding to the other support member 50 are parallel to each other.

In the embodiment of the present application, the toggle portion 51 of the supporting member 50 rotates around the first rotation axis S1 to drive the corresponding rotating member 71 to rotate around the second rotation axis S2. When the toggle part 51 rotates around the first rotation axis S1, there is a displacement component in a direction perpendicular to the first rotation axis S1 and the second rotation axis S2, so that the toggle part 51 can toggle the rotation member 71 to rotate around the second rotation axis S2. In the synchronous rotating mechanism, two adjacent supporting pieces 50 transmit power through the transmission assembly 70 and realize synchronous folding or unfolding. Specifically, power can be transmitted between the rotating pieces 71 corresponding to each of the adjacent two supporting pieces 50 and synchronous rotation can be achieved, so that the supporting pieces 50 can achieve synchronous rotation and the rotation angles can be kept uniform.

The synchronous rotating mechanism of the embodiment of the present application can be applied to the electronic device 10. The support 50 can rotate around the first rotation axis S1 to realize folding or unfolding, so as to realize folding or unfolding of the flexible screen 20 of the electronic device 10 and change the display area of the electronic device 10. The support 50 transmits power through the transmission assembly 70. The transmission assembly 70 includes a rotation member 71. The toggle part 51 of each supporting member 50 is correspondingly provided with a rotating member 71. When the shifting portion 51 rotates around the first rotation axis S1, the shifting portion 51 can shift the corresponding rotating member 71 to rotate around the second rotation axis S2. In two adjacent support piece 50, when the rotation piece 71 that a support piece 50 corresponds rotated, the rotation piece 71 that another support piece 50 corresponds can keep synchronous rotation to support piece 50 realizes synchronous rotation, in order to realize synchronous folding or synchronous expansion, and then guarantees that support piece 50's expansion process or folding process are stable, smooth-going, is favorable to guaranteeing the convenience of electronic equipment 10 use, promotes the experience satisfaction of use.

In some realizable manners, as shown in fig. 8, the support 50 has a screen supporting surface 50a. The electronic device 10 also includes a flexible screen 20. The flexible screen 20 may be disposed at one side of the screen supporting surface 50a. The flexible screen 20 may be connected to a support 50. The screen supporting surface 50a of the supporting member 50 has good flatness and can be well contacted and attached with the flexible screen 20, so that the flexible screen 20 in the unfolded state can be kept flat.

In some examples, the support 50 and the center frame 60 are a separate assembled structure. The supporting member 50 is detachably connected to the middle frame 60. For example, the support member 50 and the middle frame 60 are connected by a fastener such as welding or a screw. The support 50 connects the middle frame 60 and the hinge 40. In other examples, the support 50 and the middle frame 60 may be integrally formed.

In some realizable manners, the flexible screen 20 may cover the toggle part 51 and the transmission assembly 70, so that the toggle part 51 and the transmission assembly 70 are not visible from the outside of the electronic device 10 when the electronic device 10 is in the unfolded state, which is beneficial to improving the aesthetic appearance of the electronic device 10.

In some implementations, the electronic device 10 also includes a back cover 30. The hinge 40 is provided at one side of the back cover 30. Hinge 40 may be located between back cover 30 and flexible screen 20. In some examples, the hinge 40 may be attached to the back cover 30 by fasteners such as screws or rivets.

The rotation member 71 is rotatably connected to the back cover 30. In some examples, referring to fig. 9, the rotation member 71 is provided to the hinge 40. The rotation member 71 is connected to the back cover 30 by the hinge 40. The hinge 40 may be provided with a rotating shaft 100, and the rotating member 71 is mounted on the rotating shaft 100 of the hinge 40, so that the rotating member 71 can rotate around the second rotating axis S2 with respect to the back cover 30. The second rotation axis S2 coincides with the axis of the rotation shaft 100. Then, the hinge 40 is assembled with the back cover 30. For example, a bearing may be provided between the rotation member 71 and the rotation shaft 100 of the hinge 40. In other examples, the rotator 71 may be directly connected to the back cover 30. The back cover 30 is provided with a rotating shaft 100, and the rotating member 71 is mounted on the rotating shaft 100 of the back cover 30, so that the rotating member 71 can rotate around the second rotating axis S2 relative to the back cover 30. The second rotation axis S2 coincides with the axis of the rotation shaft 100 of the back cover 30. For example, a bearing may be disposed between the rotation member 71 and the rotation shaft 100 of the back cover 30.

In some implementations, fig. 10 schematically illustrates the structure of the rotating member 71 of an embodiment. Referring to fig. 10, the rotation member 71 includes a guide portion 71a. The toggle part 51 of the supporting part 50 is in sliding fit with the guide part 71a of the rotating part 71, so that the connecting mode between the supporting part 50 and the rotating part 71 is simple, the use number of parts is reduced, and the assembly difficulty of the supporting part 50 and the rotating part 71 is reduced. The manner of relative sliding of the toggle part 51 with respect to the guide part 71a can make the toggle part 51 and the guide part 71a have more freedom of movement, and ensure the relative movement process of the toggle part 51 and the guide part 71a to be stable and smooth. When the toggle part 51 rotates around the first rotation axis S1, the toggle part 51 and the guiding part 71a can slide relatively, and in a direction perpendicular to the second rotation axis S2, the toggle part 51 has a displacement component, so that the toggle part 51 applies a rotation acting force to the rotation member 71 through the guiding part 71a to drive the rotation member 71 to rotate around the second rotation axis S2.

In some examples, when the toggle part 51 of the support 50 rotates around the first rotation axis S1, the toggle part 51 has a displacement component in a direction perpendicular to the first rotation axis S1 and the second rotation axis S2, and also has a displacement component in a direction parallel to the second rotation axis S2. The toggle part 51 of the supporting member 50 can slide relative to the guiding part 71a, so that the toggle part 51 can toggle the guiding part 71a to rotate around the second rotation axis S2, and meanwhile, the toggle part 51 can slide relative to the guiding part 71a along the second rotation axis S2, thereby reducing the possibility that the toggle part 51 and the guiding part 71a are locked with each other due to the limiting constraint of the toggle part 51 formed by the guiding part 71a, so that the toggle part 51 cannot toggle the rotation of the rotation member 71 through the guiding part 71a.

In some realizable forms, one of the dial portion 51 and the guide portion 71a is a guide slot, and at least a portion of the other is located within the guide slot. The toggle part 51 and the guide part 71a are connected in a plugging manner, so that the difficulty in assembling the toggle part 51 and the guide part 71a is reduced.

In some examples, the guide portion 71a may be a guide groove. At least part of the dial portion 51 is located within the guide portion 71a. When the toggle part 51 rotates, the toggle part 51 can easily slide relative to the guide part 71a and drive the rotating part 71 to rotate, which is beneficial to reducing the possibility of locking or jamming of the toggle part 51 and the guide part 71a. The guide portion 71a has an inner wall facing the dial portion 51. The toggle part 51 may be kept in contact with the inner wall of the guide part 71a, and the toggle part 51 may slide relative to the inner wall of the guide part 71a when the toggle part 51 rotates about the first rotation axis S1. Illustratively, the toggle part 51 and the inner wall of the guide part 71a can be always kept in a contact state, so that no play exists between the toggle part 51 and the guide part 71a, thereby reducing the possibility that the toggle part 51 needs to be first eliminated to be in contact with the guide part 71a when the toggle part 51 moves due to the play existing between the toggle part 51 and the guide part 71a, further reducing the possibility that the toggle part 51 and the guide part 71a do not realize synchronous transmission due to the unsynchronized movement of the guide part 71a when the toggle part 51 moves, and being beneficial to improving the accuracy of synchronous rotation of the support 50.

In some examples, FIG. 11 schematically illustrates an embodiment of a support 50 and a partially exploded structure of a drive assembly 70. Referring to fig. 11 and 12, the toggle part 51 includes a contact body 511. The contact body 511 of the toggle part 51 is slidably fitted with the guide part 71a. The outer surface of the contact body 511 is a curved surface. The outer surface of the contact body 511 refers to a surface observable from the outside of the dial part 51. The outer surface of the contact 511 may contact the inner wall of the guide portion 71a. The outer surface of the contact 511 is slidably fitted with the guide portion 71a. When the toggle part 51 slides relative to the guide part 71a, the toggle part 51 also rotates relative to the guide part 71a. Since the outer surface of the contact body 511 is a curved surface, on one hand, when the toggle part 51 slides relative to the guide part 71a, the situation of impact and play between the toggle part 51 and the guide part 71a is not easy to occur; on the other hand, when the outer surface of the contact body 511 rotates relative to the guide portion 71a, the frictional resistance between the toggle portion 51 and the guide portion 71a is small, so that a small acting force can be applied to the support member 50 to enable the toggle portion 51 to slide relative to the guide portion 71a, the operation difficulty of the support member 50 is reduced, and the possibility of instantaneous impact in the rotation process of the support member 50 caused by a large acting force required to be applied to the support member 50 is reduced.

In some examples, the inner wall of the guide portion 71a is arc-shaped in cross section. The cross section of the inner wall is perpendicular to the center line of the guide portion 71a. The outer surface of the contact body 511 is matched with the cross-sectional shape of the inner wall of the guide part 71a, so that the outer surface of the contact body 511 can be well contacted and attached with the inner wall of the guide part 71a, and the smoothness of power transmission between the toggle part 51 and the guide part 71a is favorably improved.

Illustratively, the outer surface of the contact body 511 is a spherical surface, and the cross section of the inner wall of the guide portion 71a is a circular arc, so as to further reduce the frictional resistance between the toggle portion 51 and the guide portion 71a, and further improve the smoothness of power transmission between the toggle portion 51 and the guide portion 71a. Illustratively, the diameter of the outer surface of the contact body 511 is the same as the diameter of the cross section of the inner wall of the guide portion 71a. For example, after the outer surface of the contact body 511 is contacted with the inner wall of the guide portion 71a, the spherical center corresponding to the outer surface of the contact body 511 may coincide with the center of the cross section of the inner wall of the guide portion 71a.

In some examples, FIG. 13 schematically illustrates a partial structure of electronic device 10 of an embodiment. Referring to fig. 13, the dial part 51 includes a contact body 511. The contact 511 is a cylinder. The outer peripheral surface of the contact body 511 is slidably fitted to the guide portion 71a. The outer circumferential surface of the contact 511 may contact the inner wall of the guide portion 71a. The distance is reserved between the top surface of the contact body 511 facing the rotating part 71 and the inner wall of the guide part 71a, so that the top surface of the contact body 511 and the guide part 71a are in a non-contact state, the condition that the top surface of the contact body 511 is pressed against the inner wall of the guide part 71a in the sliding process of the toggle part 51 relative to the guide part 71a is ensured, and the possibility that the toggle part 51 and the guide part 71a are clamped with each other due to the fact that the top surface of the contact body 511 is pressed against the inner wall of the guide part 71a is reduced, and the toggle part 51 cannot drive the guide part 71a to rotate. Illustratively, the guide portion 71a is a rectangular groove. The contact 511 is a cylinder. The guide portion 71a includes a side wall and a bottom wall. The outer peripheral surface of the contact body 511 is relatively slidably fitted to the side wall of the guide portion 71a. The top surface of the contact 511 is spaced apart from the bottom wall of the guide portion 71a.

In other examples, the dial 51 may be a guide slot with at least a portion of the guide 71a located within the dial 51. When the toggle part 51 rotates around the first rotation axis S1, the guide part 71a can slide and rotate in the toggle part 51 relative to the toggle part 51, and the guide part 71a rotates around the second rotation axis S2.

In some realizable forms, as shown in fig. 11, the support 50 also includes a support body 52 and a boss 53. The support body 52 may be connected to the hinge 40. The support body 52 has a screen support surface 50a. For example, the support body 52 may be a plate-shaped structural member. The boss 53 is provided on a side of the support main body 52 facing away from the screen supporting surface 50a. The rotating member 71 and the supporting body 52 and the rotating member 71 and the boss 53 have a space therebetween along the first rotation axis S1. The toggle part 51 is disposed at an end of the boss 53 away from the support body 52, so that the boss 53 can increase an interval between the toggle part 51 and the support body 52, and a rotation radius between the toggle part 51 and the first rotation axis S1 can be correspondingly increased. When the dial part 51 rotates about the first rotation axis S1, the rotation angle of the rotation member 71 may increase in case that the dial part 51 rotates by a unit angle. Illustratively, the boss 53 has a ramped surface 531 facing the rotational member 71. The inclined surface 531 intersects the first rotation axis S1. The striking part 51 is disposed on the inclined surface 531.

In some examples, the toggle portion 51 includes a base 512 and a contact body 511 that are cylindrical. The base 512 is disposed at an end of the boss 53 remote from the support body 52. The contact 511 of the dial portion 51 is provided at an end of the base 512 facing the rotation member 71. The contact body 511 of the dial portion 51 is slidably fitted with the guide portion 71a. The columnar base 512 can increase the distance between the boss 53 and the rotating member 71, and reduce the possibility that the dial part 51 cannot drive the rotating member 71 to rotate to a predetermined position due to position interference between the boss 53 and the rotating member 71. Illustratively, the base 512 may be cylindrical.

Illustratively, the base 512 and the contact body 511 may be an integrally formed structure, which is beneficial to improving the overall mechanical strength of the toggle part 51, improving the deformation resistance, and reducing the possibility that the toggle part 51 is deformed due to the greater external acting force borne by the toggle part 51 when the turnover supporting member 50 with a greater force is used.

For example, the base 512 and the contact 511 may be a separate assembly structure. The contact 511 and the base 512 are each separately manufactured and then assembled. Illustratively, the contact 511 may be a sphere. The base 512 has a spherical receiving space at an end thereof. The contact 511 has a portion accommodated in the accommodation space of the base 512 and a portion protruding from the opening of the accommodation space. The portion of the contact 511 protruding from the base 512 is slidably fitted in the guide portion 71a. Since the contact body 511 can freely roll relative to the base 512, when the contact body 511 slides and rotates relative to the guide portion 71a, the outer surface of the contact body 511 and the guide portion 71a are in a rolling friction form, which is beneficial to further reducing the friction resistance between the toggle part 51 and the guide portion 71a and improving the stability and smoothness when the toggle part 51 slides or rotates relative to the guide portion 71a.

In some examples, the first axis of rotation S1 intersects a projection of the central axis 512a of the base 512 on a second plane. The first rotation axis S1 is not parallel to the central axis 512a of the base 512.

Illustratively, the first axis of rotation S1 and the central axis 512a are both parallel to the second plane described above.

In some examples, the second axis of rotation S2 intersects the projection of the central axis 512a of the susceptor 512 on the third plane. The second axis of rotation S2 is not parallel to the central axis 512a of the base 512.

Illustratively, the second rotation axis S2 and the central axis 512a are both parallel to the third plane described above.

Illustratively, the dial 51 may be inclined toward the screen supporting surface 50a of the support body 52 with respect to the boss 53.

For example, in the embodiment where the outer surface of the contact 511 is spherical, the corresponding sphere center of the outer surface may be located on the central axis 512a of the susceptor 512. The corresponding sphere center of the outer surface has a distance with the first rotating axis S1.

Illustratively, when the electronic device 10 is in the unfolded state, in two of the toggle parts 51 on two adjacent supporting parts 50 on the same side, the central axis 512a of one base 512 and the central axis 512a of the other base 512 are located on the same plane and intersect. Illustratively, the base 512 has a top end face facing the rotation piece 71. When the electronic device 10 is in the unfolded state, of the two toggle parts 51 on the same side of the two adjacent supporting parts 50, the top end surface of one base 512 is arranged opposite to the top end surface of the other base 512.

In some implementations, the rotary member 71 includes a rotary wheel 711 and a swing arm 712. The swing arm 712 may be disposed at a side of the rotating wheel 711 facing the support 50. The dial portion 51 of the supporting member 50 may be connected with the swing arm 712 of the rotation member 71. When the swing arm 712 swings, the swing arm 712 can drive the rotating wheel 711 to rotate around the second rotating axis S2. The toggle part 51 can drive the rotating wheel 711 to rotate by driving the swing arm 712 to swing. When the toggle part 51 rotates around the first rotation axis S1, the toggle part 51 can apply a force to the swing arm 712, so that the rotating part 71 generates a torque to rotate. The swing arm 712 is arranged to enable the vertical distance between the contact position between the toggle part 51 and the rotating part 71 and the second rotating axis S2 to be larger, so that on one hand, under the condition that the acting force of the toggle part 51 on the swing arm 712 is not changed, the torque generated by the rotating part 71 is relatively larger, and the rotating part 71 is easier to be toggled by the toggle part 51; on the other hand, in the case that the rotation angle of the dial part 51 is not changed, the swing amplitude of the swing arm 712 can be made larger, and the rotation angle of the rotating wheel 711 can be made larger.

Illustratively, the swing arm 712 of the rotating member 71 has a guide portion 71a thereon. The dial portion 51 is slidably fitted with the guide portion 71a.

In some examples, a portion of the swing arm 712 protrudes from the rotating wheel 711 along the second axis of rotation S2. The swing arm 712 has a thickness greater than that of the rotating wheel 711 along the second rotation axis S2. Therefore, the swing arm 712 has relatively high mechanical strength and good deformation resistance, so that when the toggle part 51 applies an acting force to the swing arm 712, the swing arm 712 is not easy to deform, the structural stability of the whole rotating part 71 is ensured, and the possibility of locking or clamping stagnation between the toggle part 51 and the swing arm 712 caused by the deformation of the swing arm 712 is reduced. The rotating wheel 711 is used to transmit power. The direction of the acting force carried by the rotating wheel 711 is perpendicular to the second rotating axis S2, so the thickness of the rotating wheel 711 can be designed to be smaller, which is beneficial to reducing the weight of the transmission assembly 70 and further beneficial to reducing the overall weight of the electronic device 10 under the condition that the rotating piece 71 meets the requirement of mechanical strength.

In some realizable manners, the support 50 has a screen supporting surface 50a. Along the second rotation axis S2, the surface of the rotation member 71 is lower than the screen supporting surface 50a of the supporting member 50. The flexible screen 20 provided on the support 50 may cover the driving assembly 70. The screen supporting surface 50a of the support 50 may be in contact with the flexible screen 20. The flexible screen 20 arranged on the supporting element 50 is spaced from the surface of the rotating element 71, so that the flexible screen 20 and the rotating element 71 are in a non-contact state, which is beneficial to reducing the possibility that the rotating element 71 scratches or scratches the flexible screen 20 due to the rotation of the rotating element 71, so as to ensure the structural integrity of the flexible screen 20.

In some realizable forms, as shown in fig. 13, the rotary member 71 includes meshing tooth portions 71b. The rotating member 71 is in meshing transmission through the meshing tooth portion 71b, so that on one hand, the rotating member 71 can bear large torque and is not easy to deform; on the other hand, the meshing tooth portions 71b of the rotating members 71 may form a limit restriction such that the rotating members 71 corresponding to two adjacent supporting members 50 are less likely to slide relative to each other, reducing the possibility that the rotating angle of the rotating member 71 corresponding to one supporting member 50 is larger than the rotating angle of the rotating member 71 corresponding to the other supporting member 50.

In some examples, the number of the rotation members 71 in the transmission assembly 70 may be two. One rotation member 71 is provided corresponding to one support member 50. The two rotating members 71 are in meshing transmission through the meshing tooth portions 71b. One rotation piece 71 may be provided corresponding to one dial portion 51. The rotation directions of the rotation pieces 71 corresponding to the two adjacent support pieces 50 are opposite. Illustratively, the two swing arms 712 are positioned at a minimum distance when the electronic device 10 is in the unfolded state.

Fig. 14 schematically shows a connection state of the support 50 and the driving assembly 70 in a folded state of the embodiment. Referring to fig. 14, when the toggle part 51 rotates around the first rotation axis S1, the toggle part 51 toggles the swing arm 712 to swing. The two swing arms 712 move away from each other. When the electronic apparatus 10 is in the folded state, the two swing arms 712 stop moving, and the distance between the two swing arms 712 is the largest.

In other examples, the number of the rotating members 71 in the transmission assembly 70 may be two. One rotation member 71 is provided corresponding to one support member 50. An intermediate wheel may be provided between the two rotation members 71. One rotating member 71 may transmit power to the other rotating member 71 through an intermediate wheel. Illustratively, the intermediate wheel has teeth. The rotating member 71 is in meshing transmission with the intermediate wheel.

In some examples, in embodiments where the rotary member 71 includes a swing arm 712 and a rotary wheel 711, the rotary wheel 711 has an engaging tooth portion 71b.

In some realizable ways, FIG. 15 schematically illustrates a partial structure of an electronic device 10 of an embodiment. Referring to fig. 15, along the first rotation axis S1, the supporting member 50 is provided with a toggle portion 51 and a transmission assembly 70 at opposite sides thereof. When the supporting member 50 rotates around the first rotation axis S1, the supporting member 50 can transmit power to the corresponding transmission assemblies 70 through the toggle portions 51 at two sides, so that the rotation members 71 in the transmission assemblies 70 at two sides rotate, which is beneficial to improving the stress balance of the supporting member 50 and improving the stability and smoothness of the rotation process of the supporting member 50.

In some examples, a toggle portion 51 is disposed on each side of one of the supporting members 50. The transmission assembly 70 includes two rotation members 71. One dial portion 51 is provided corresponding to one rotation member 71. The dial portion 51 dials the corresponding rotation members 71 to rotate so that the two rotation members 71 located on the same side of the one support member 50 rotate synchronously.

In some realizable ways, FIG. 16 schematically shows a partial structure of an electronic device 10 of an embodiment. Referring to fig. 16, the supporter 50 has an intermediate receiving portion 50b. The toggle part 51 of the support 50 is disposed facing the intermediate receiving part 50b. At least a part of the rotation member 71 is disposed in the intermediate accommodation portion 50b, so that, on the one hand, the rotation member 71 does not occupy a space outside the support member 50, which is advantageous for improving the structural compactness; on the other hand, the support member 50 may provide protection to the transmission assembly 70, reducing the possibility of damage to the transmission assembly 70 caused by an external structural member striking the transmission assembly 70. Illustratively, the intermediate housing portion 50b is a through hole.

In some examples, along the first rotation axis S1, the support 50 includes two dials 51. The two toggle parts 51 are disposed facing each other. Both transmission assemblies 70 are disposed corresponding to the intermediate receiving portion 50b of the support 50. Each transmission assembly 70 comprises two rotation members 71. One dial portion 51 is provided corresponding to one rotation member 71.

In some realizable manners, the plurality of hinges 40 are disposed at intervals along the first rotation axis S1. Each hinge 40 connects two supports 50. At least one of the two opposite sides of the supporting member 50 is provided with a toggle part 51 and a corresponding rotating part 71. Illustratively, the support 50 on each hinge 40 is a separate assembly structure from the center frame 60. The support 50 connects the hinge 40 with the middle frame 60.

In some realizable manners, the rotating part 71 correspondingly arranged on one supporting part 50 and the rotating part 71 correspondingly arranged on the other supporting part 50 are symmetrically arranged relative to the middle point of the perpendicular line between two adjacent first rotating axes S1, so that when two adjacent supporting parts 50 rotate, the stress on the rotating part 71 is more balanced, the power transmission process is more stable, and the rotating process of the supporting part 50 is ensured to be stable and smooth. The rotating pieces 71 have the same structure, which is beneficial to reducing the processing difficulty and the assembling difficulty. In some examples, one rotating member 71 may be disposed at one side of the supporting member 50. In some examples, the toggle part 51 of one support 50 and the toggle part 51 of the other support 50 may be symmetrically disposed with respect to a midpoint of a perpendicular line between two adjacent first rotation axes S1. The toggle part 51 of one support 50 and the toggle part 51 of the other support 50 can have the same structure, which is beneficial to reducing the processing difficulty and the assembly difficulty.

In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, an indirect connection through an intermediate medium, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

Reference throughout this specification to apparatus or components, in embodiments or to components thereof, may be understood as not necessarily referring to the particular orientation, construction or operation as such. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically stated otherwise.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the embodiments of the application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The term "plurality" herein means two or more. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship; in the formula, the character "/" indicates that the preceding and following related objects are in a relationship of "division".

It is to be understood that the various numerical references referred to in the embodiments of the present application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of the present application.

It should be understood that, in the embodiment of the present application, the sequence numbers of the above-mentioned processes do not imply an order of execution, and the order of execution of the processes should be determined by their functions and inherent logic, and should not limit the implementation process of the embodiment of the present application in any way.

Claims

1. A synchronous rotary mechanism, comprising at least:

a support member rotated about a first rotation axis to effect folding or unfolding, the support member including a toggle portion;

the transmission assembly comprises a rotating part, the rotating part is arranged along the first rotating axis and corresponds to the shifting part, the first rotating axis is intersected with the projection of the second rotating axis of the rotating part on a first plane, and the first rotating axis and the second rotating axis are both parallel to the first plane;

the poking part rotates around the first rotating axis to drive the corresponding rotating part to rotate around the second rotating axis.

2. The synchronous rotary mechanism according to claim 1, wherein the rotary member includes a guiding portion, the dial portion is slidably engaged with the guiding portion, the dial portion rotates around the first rotation axis, and the dial portion slides relative to the guiding portion to rotate the rotary member.

3. The synchronous rotary mechanism of claim 2, wherein one of the toggle portion and the guide portion is a guide slot, and at least a portion of the other is located within the guide slot.

4. The synchronous rotary mechanism of claim 3 wherein the guide is the guide slot and at least a portion of the toggle portion is located within the guide.

5. The synchronous rotary mechanism of claim 4, wherein the toggle portion comprises a contact body having an outer surface that is a curved surface, the outer surface being in sliding engagement with the guide portion.

6. The synchronous rotary mechanism of claim 5 wherein the inner wall of the guide portion is arcuate in cross-section and the outer surface of the contact body matches the cross-sectional shape of the inner wall.

7. The synchronous rotary mechanism of claim 6 wherein the outer surface is spherical and the inner wall has a circular arc cross-section.

8. The synchronous rotary mechanism of claim 4 wherein the toggle portion comprises a contact body, the contact body is a cylinder, the outer peripheral surface of the contact body is in sliding fit with the guide portion, and a top surface of the contact body facing the rotating member is spaced from an inner wall of the guide portion.

9. The synchronous rotary mechanism of any one of claims 2 to 8, wherein the support further comprises a support body having a screen support surface and a boss disposed on a side of the support body facing away from the screen support surface, the toggle portion being disposed at an end of the boss remote from the support body.

10. The synchronous rotary mechanism of claim 9 wherein the toggle portion includes a base disposed at an end of the boss distal from the support body and a contact disposed at an end of the base facing the rotating member, the contact being in sliding engagement with the guide portion.

11. The synchronous rotary mechanism of claim 10, wherein the base is a cylindrical structure, the first axis of rotation intersects a projection of a central axis of the base onto a second plane, and the first axis of rotation and the central axis are both parallel to the second plane;

the second rotation axis intersects a projection of the central axis of the base on a third plane, and the second rotation axis and the central axis are parallel to the third plane.

12. The synchronous rotary mechanism of any one of claims 1 to 11 wherein the rotary member comprises a rotary wheel and a swing arm, the toggle portion driving the rotary wheel to rotate via the swing arm.

13. The synchronous rotary mechanism of claim 12 wherein a portion of the swing arm is disposed proud of the rotating wheel along the second axis of rotation.

14. The synchronous rotary mechanism of any one of claims 1 to 13 wherein the support member has a screen support surface and the surface of the rotary member is lower than the screen support surface along the second axis of rotation.

15. The synchronous rotary mechanism of any one of claims 1 to 14, wherein the rotary member includes meshing teeth, the rotary member being in meshing transmission through the meshing teeth.

16. The synchronous rotary mechanism of any one of claims 1 to 15 wherein the toggle portion and the transmission assembly are disposed on opposite sides of the support along the first axis of rotation.

17. The synchronous rotary mechanism of any one of claims 1 to 15 wherein the support member has an intermediate receptacle, the toggle portion is disposed facing the intermediate receptacle, and at least a portion of the rotary member is disposed within the intermediate receptacle.

18. The synchronous rotary mechanism according to any one of claims 1 to 17, wherein the rotary member provided corresponding to one of the support members is arranged symmetrically with respect to a midpoint of a perpendicular line between two adjacent first rotation axes.

19. The synchronous rotary mechanism of any one of claims 1 to 18, wherein a projection of the first axis of rotation and the second axis of rotation onto the same plane is perpendicular.

20. The synchronous rotary mechanism of any one of claims 1 to 19 wherein the toggle portion is spaced from the first axis of rotation.

21. An electronic device, comprising:

a hinge;

the synchronous rotary mechanism of any one of claims 1 to 20, the support being rotatably connected to the hinge, the support being rotatable about the first axis of rotation relative to the hinge to effect folding or unfolding.

22. The electronic device of claim 21, wherein the support has a screen support surface, the electronic device further comprising a flexible screen disposed on one side of the screen support surface, the flexible screen covering the dial and the transmission assembly.

23. The electronic device of claim 21 or 22, further comprising a back cover, wherein the hinge is disposed on one side of the back cover, and the rotating member is rotatably connected to the back cover.