WO2024036654A1 - Hinge structure and electronic device - Google Patents

Abstract

A hinge structure (100) and an electronic device having same. A first supporting member (21) of the hinge structure (100) is connected to a first rotating member (31) by means of a first connecting member (41), and the first supporting member (21) is formed on one side surface of the first rotating member (31); a second supporting member (22) is connected to a second rotating member (32) by means of a second connecting member (42), and is formed on one side surface of the second rotating member (32); and the first rotating member (31) is connected to the second rotating member (32) by means of a linkage mechanism (40), so that the first rotating member (31) and the second rotating member (32) rotate synchronously, so as to achieve synchronous rotation of the hinge structure (100).

Description

Hinge structure and electronics Technical field

The present application relates to the field of display technology, and in particular, to a hinge structure and an electronic device.

Background technique

With the development of flexible OLED display technology and the fact that foldable electronic devices combine the portability of ordinary electronic devices with the ultimate experience of large-screen display after unfolding, foldable electronic devices have gradually become an important trend in the development of mobile terminals and have become An important area for competition among major terminal manufacturers.

Currently, in existing foldable electronic devices, hinge structures are usually used to realize the folding of flexible screens. As an important part of foldable electronic devices, the hinge structure plays an important role in screen protection, folding synchronization, etc. Therefore, how to achieve synchronous rotation of the hinge structure to achieve folding synchronization is particularly important.

technical problem

This application provides a hinge structure and an electronic device to realize synchronous rotation of the hinge structure.

Technical solutions

In order to solve the above problems, the technical solutions provided by this application are as follows:

The embodiment of the present application provides a hinge structure, which includes:

Fixed bracket, including main bracket;

A support mechanism includes a first support member and a second support member located on opposite sides of the main body support. The first support member is rotatably connected to one side of the main body support, and the second support member is rotatably connected to one side of the main body support. Connected to the other side of the main body bracket;

The rotating mechanism includes a first rotating member, a second rotating member, a first connecting member and a second connecting member. The first rotating member is rotatably connected to the side of the main body bracket, and the second rotating member is rotatably connected to the side of the main body bracket. The first supporting member is rotatably connected to the other side of the main body bracket, the first supporting member is connected to the first rotating member through the first connecting member, and the first supporting member is formed on the first On one side of a rotating member, the second supporting member is connected to the second rotating member through the second connecting member, and the second supporting member is formed on one side of the second rotating member;

A linkage mechanism, the first rotating member is connected to the second rotating member through the linkage mechanism, so that the first rotating member and the second rotating member rotate synchronously.

In the hinge structure provided by the embodiment of the present application, one end of the first connecting member is slidably connected to the first rotating member, and the other end of the first connecting member is rotatably connected to the first support. piece; one end of the second connecting piece is slidably connected to the second rotating member, and the other end of the second connecting piece is rotatably connected to the second supporting member.

In the hinge structure provided by the embodiment of the present application, the one end of the first connecting member is provided with a first lug, and the side of the first rotating member away from the main body bracket is provided with a first sliding groove, so The first lug is received in the first sliding groove and slides in the first sliding groove;

A second lug is provided at one end of the second connecting member, a second sliding groove is provided on a side of the second rotating member away from the main body bracket, and the second lug is received in the second in the sliding groove and slides in the second sliding groove.

In the hinge structure provided by the embodiment of the present application, the rotating mechanism further includes a third rotating member and a fourth rotating member, and the first rotating member is connected to the side of the main body bracket through the third rotating member. , the second rotating member is connected to the other side of the main body bracket through the fourth rotating member; one end of the third rotating member is rotatably connected to the first rotating member, and the third rotating member The other end of the rotating member is slidably connected to the side of the main body bracket; one end of the fourth rotating member is rotatably connected to the second rotating member, and the other end of the fourth rotating member is rotatably connected to the second rotating member. Slidingly connected to the other side of the main body bracket.

In the hinge structure provided by the embodiment of the present application, the other end of the third rotating member is provided with a first arc-shaped arm, and the side of the main body bracket is provided with a first arc-shaped groove. An arc-shaped arm is received in the first arc-shaped groove and slides in the first arc-shaped groove;

The other end of the fourth rotating member is provided with a second arc-shaped arm, the other side of the main body bracket is provided with a second arc-shaped groove, and the second arc-shaped arm is received in the second arc-shaped arm. in the arc-shaped groove and slides in the second arc-shaped groove.

In the hinge structure provided by the embodiment of the present application, the main body bracket further includes at least a first limiting member and at least a second limiting member, and the first limiting member and the second limiting member constitute the The first arc-shaped groove, the first limiting member includes a first arc-shaped surface, the second limiting member includes a second arc-shaped surface, the first arc-shaped surface and the second arc-shaped surface Both face the first arc-shaped arm to limit the first arc-shaped arm in the first arc-shaped groove.

In the hinge structure provided by the embodiment of the present application, the side of the main body bracket is also provided with a third arc-shaped groove adjacent to the first arc-shaped groove, and the first support member is close to the main body A third arc-shaped arm is provided on one side of the bracket, and the third arc-shaped arm is received in the third arc-shaped groove and slides in the third arc-shaped groove;

The other side of the main body bracket is also provided with a fourth arc-shaped groove adjacent to the second arc-shaped groove, and the second support member is provided with a fourth arc-shaped groove on one side close to the main body bracket. arm, the fourth arc-shaped arm is received in the fourth arc-shaped groove and slides in the fourth arc-shaped groove.

In the hinge structure provided by the embodiment of the present application, there is an interval between the first arcuate groove and the third arcuate groove, and there is an interval between the second arcuate groove and the fourth arcuate groove. , and the first arc-shaped groove and the fourth arc-shaped groove are arranged oppositely, and the second arc-shaped groove and the third arc-shaped groove are arranged oppositely.

In the hinge structure provided by the embodiment of the present application, the rotating mechanism further includes a third connecting member and a fourth connecting member. One end of the third connecting member is slidably connected to the first rotating member, and the third connecting member is slidably connected to the first rotating member. The other end of the three connecting parts is fixedly connected to one end of the linkage mechanism; one end of the fourth connecting part is slidably connected to the second rotating part, and the other end of the fourth connecting part is connected to the linkage mechanism The other end is fixedly connected.

In the hinge structure provided by the embodiment of the present application, the one end of the third connecting member is provided with a third lug, and the side of the first rotating member away from the first supporting member is provided with a third sliding groove. , the third lug is received in the third sliding groove and slides in the third sliding groove;

A fourth lug is provided at one end of the fourth connecting member, a fourth sliding groove is provided on a side of the second rotating member away from the second support member, and the fourth lug is received in the In the fourth sliding groove and sliding in the fourth sliding groove.

In the hinge structure provided by the embodiment of the present application, the rotation mechanism further includes a first rotation axis and a second rotation axis. The first rotation axis is fixedly connected to the third connecting piece and is connected to the linkage mechanism. The one end is fixedly connected; the second rotation shaft is fixedly connected to the fourth connecting piece and is fixedly connected to the other end of the linkage mechanism.

In the hinge structure provided by the embodiment of the present application, the fixed bracket further includes a first bracket and a second bracket, the first bracket is located between the second bracket and the main body bracket, and the linkage mechanism is provided on Between the first bracket and the main body bracket, wherein the first rotation axis and the second rotation axis are rotatably connected to the main body bracket, the first bracket and the second bracket cover Provided on the first rotation axis and the second rotation axis.

In the hinge structure provided by the embodiment of the present application, the linkage mechanism includes a first linkage member, a second linkage member and a third linkage member. The first linkage member is connected to the first rotation shaft, and the second linkage member is connected to the first rotation axis. The linkage piece is connected to the second rotation shaft, and the first linkage piece is synchronously connected to the second linkage piece through the third linkage piece so that the first rotation shaft and the second rotation shaft rotate synchronously. .

In the hinge structure provided by the embodiment of the present application, the first linkage includes a first gear, the second linkage includes a second gear, and the third linkage includes two third gears meshing with each other, wherein, The two third gears are rotatably connected to the main body bracket and the first bracket. The first gear is sleeved on the first rotating shaft, and the second gear is sleeved on the second rotating shaft. shaft, the first gear is meshed with one of the two third gears, and the second gear is meshed with the other of the two third gears.

In the hinge structure provided by the embodiment of the present application, the other end of the third connecting member is sleeved on the first rotation shaft and is located on a side of the first bracket away from the linkage component; The other end of the fourth connecting member is sleeved on the second rotation shaft and is located on the side of the first bracket away from the linkage component.

In the hinge structure provided by the embodiment of the present application, the other end of the third connecting member is provided with a first cam on a side away from the linkage component, and the other end of the fourth connecting member is provided on a side away from the linkage component. A second cam is provided on one side of the linkage component;

The hinge structure also includes a positioning mechanism. The positioning mechanism includes a positioning piece. The positioning piece is sleeved on the first rotating shaft and the second rotating shaft. The positioning piece is close to the third connecting member. A first concave wheel matching the first cam is provided on one side, and a second concave wheel matching the second cam is provided on a side of the positioning member close to the fourth connecting member.

In the hinge structure provided by the embodiment of the present application, the positioning mechanism further includes a first elastic member and a second elastic member, wherein the first elastic member is sleeved on the first rotation axis, and the first elastic member One end of the component is connected to the positioning component, the other end of the first elastic component is connected to the second bracket, the second elastic component is sleeved on the second rotating shaft, and the second elastic component One end is connected to the positioning member, and the other end of the second elastic member is connected to the second bracket. Both the first elastic member and the second elastic member are in an elastic deformation state.

An embodiment of the present application also provides an electronic device, which includes the hinge structure of one of the foregoing embodiments.

beneficial effects

In the hinge structure and electronic device provided by the present application, the fixed bracket of the hinge structure includes a main body bracket, and the support mechanism includes a first support member and a second support member located on opposite sides of the main body support, and the first support member is rotatable. Connected to one side of the main body bracket, the second support member is rotatably connected to the other side of the main body bracket. The rotation mechanism includes a first rotating member, a second rotating member, a first connecting member and a second Connecting member, the first rotating member is rotatably connected to the one side of the main body bracket, the second rotating member is rotatably connected to the other side of the main body bracket, the first rotating member is rotatably connected to the other side of the main body bracket. The support member is connected to the first rotating member through a first connecting member, and the first supporting member is formed on one side of the first rotating member, and the second supporting member is connected to the second rotating member through a second connecting member, And the second support member is formed on one side of the second rotating member, and the first rotating member connects the second rotating member through a linkage mechanism, so that the first rotating member and the second rotating member The rotating parts rotate synchronously to achieve synchronous rotation of the hinge structure.

Description of drawings

In order to explain the embodiments or technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for the purpose of invention. For some embodiments, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

FIG. 1 is a structural schematic diagram of a hinge structure in a flat state according to an embodiment of the present application.

Figure 2 is a partial structural schematic diagram of the hinge structure in Figure 1.

FIG. 3 is a structural schematic diagram of the hinge structure provided by the embodiment of the present application in a folded state.

Figure 4 is an exploded structural schematic diagram of the hinge structure provided by the embodiment of the present application.

FIG. 5 is a detailed structural diagram of the second rotation mechanism provided by the embodiment of the present application.

Figure 6 is a schematic structural diagram of the connection between the first rotating member and the second rotating member and the main body bracket provided by the embodiment of the present application.

Figure 7 is a detailed structural diagram of the main body bracket provided by the embodiment of the present application.

Figure 8 is a schematic structural diagram of the connection between the support mechanism and the main body bracket provided by the embodiment of the present application.

Figure 9 is a schematic structural diagram of the back details of the first support member provided by the embodiment of the present application.

Figure 10 is a schematic structural diagram of the third connecting member and the connection between the third connecting member and the rotating shaft provided by the embodiment of the present application.

Figure 11 is a detailed structural diagram of the positioning mechanism provided by the embodiment of the present application.

Figure 12 is a schematic cross-sectional structural diagram of the folded hinge structure provided by the embodiment of the present application.

Figure 13 is a detailed structural diagram of the first cam and the first concave wheel provided by the embodiment of the present application.

Explanation of reference symbols:

Embodiments of the invention

The following description of the embodiments refers to the accompanying drawings to illustrate specific embodiments in which the present application may be implemented. The directional terms mentioned in this application, such as [upper], [lower], [front], [back], [left], [right], [inner], [outer], [side], etc., are for reference only. The direction of the attached schema. Therefore, the directional terms used are used to explain and understand the present application, rather than to limit the present application. In the figure, units with similar structures are represented by the same numbers. In the drawings, the thickness of some layers and regions are exaggerated for clarity of understanding and ease of description. That is, the size and thickness of each component shown in the drawings are arbitrarily shown, but the application is not limited thereto.

Please refer to FIGS. 1 to 13 , the hinge structure 100 includes a fixed bracket 10 , a support mechanism 20 , a rotating mechanism 30 and a linkage mechanism 40 . The fixed bracket 10 includes a main body bracket 11. The support mechanism 20 includes a first support member 21 and a second support member 22 located on opposite sides of the main body support 11. The first support member 21 is rotatable along a first axis. The second support member 22 is rotatably connected to one side of the main body bracket 11 along a second axis. The rotating mechanism 30 includes a first rotating member 31, a second rotating member 32, a first connecting member 41 and a second connecting member 42. The first rotating member 31 is rotatably connected to the main body bracket along a third axis. On one side of the main body bracket 11 , the second rotating member 32 is rotatably connected to the other side of the main body bracket 11 along a fourth axis.

Wherein, the first axis, the second axis, the third axis and the fourth axis may all be virtual axes or physical axes, and the axis of the first axis and the axis of the third axis Parallel but not coincident, the axis of the second axis is parallel to the axis of the fourth axis but not coincident.

The first supporting member 21 is connected to the first rotating member 31 through the first connecting member 41, and the first supporting member 21 is formed on one side of the first rotating member 31, and the second supporting member 21 is formed on one side of the first rotating member 31. The supporting member 22 is connected to the second rotating member 32 through the second connecting member 42 , and the second supporting member 22 is formed on one side of the second rotating member 32 .

The first rotating member 31 is connected to the second rotating member 32 through a linkage mechanism 40, so that the first rotating member 31 rotates along the third axis, and the second rotating member 32 rotates along the fourth axis. The shaft rotates, thereby causing the first rotating member 31 and the second rotating member 32 to rotate synchronously, thereby realizing synchronous rotation of the hinge structure 100 . The axis of the third axis and the axis of the fourth axis are parallel but not coincident. However, the application is not limited thereto. For example, in other embodiments, the axis of the third shaft and the axis of the fourth shaft may also overlap, so that the first rotating member 31 and the second rotating member 32 move along the rotate synchronously on the same axis.

The specific structure and rotation principle of the hinge structure will be described in detail below.

Specifically, one end of the first connecting member 41 is slidably connected to the first rotating member 31, and the other end of the first connecting member 41 is rotatably connected to the first supporting member 21. The rotation axis of the first connecting member 41 is parallel to but not coincident with the axis of the first shaft. One end of the second connecting member 42 is slidably connected to the second rotating member 32 , and the other end of the second connecting member 42 is rotatably connected to the second supporting member 22 . The axis of rotation of member 42 is parallel to but not coincident with the axis of said second shaft. The one end and the other end in this application refer to the two opposite ends of a component.

A first lug 411 is provided at one end of the first connecting member 41 , and a first sliding groove 311 is provided at a side of the first rotating member 31 away from the main body bracket 11 . The first lug 411 It is received in the first sliding groove 311 and slides in the first sliding groove 311 . The first sliding groove 311 is a linear sliding groove. The first sliding groove 311 can make the first lug 411 slide in one direction and restrict the first lug 411 from sliding in other directions, so that The first lug 411 slides back and forth in a straight line in one direction in the first sliding groove 311 . A first notch 212 is provided on the side of the first support member 21 away from the main body bracket 11 . The other end of the first connecting member 41 is located in the first notch 212 and connected with the first notch 212 . The support 21 is connected in a rotational manner. Specifically, the other end of the first connecting member 41 is provided with a cylindrical hole, and the side wall of the first notch 212 of the first support member 21 is provided with a corresponding cylindrical hole. The cylindrical shaft 401 is inserted into the cylindrical hole of the first connecting member 41 and the cylindrical hole of the first supporting member 21 to achieve rotational connection between the first connecting member 41 and the first supporting member 21. The axis center of the cylindrical shaft 401 is the rotation axis of the first connecting member 41 . Of course, in other embodiments, the rotational connection between the first connecting member 41 and the first supporting member 21 can also be achieved in other ways.

Referring to FIG. 5 , a second lug 421 is provided at one end of the second connecting member 42 , and a second sliding groove 321 is provided at a side of the second rotating member 32 away from the main body bracket 11 . The two lugs 421 are received in the second sliding groove 321 and slide in the second sliding groove 321 . The second sliding groove 321 is also a linear sliding groove. The second sliding groove 321 can make the second lug 421 slide in one direction and restrict the second lug 421 from sliding in other directions. In this way, the second lug 421 slides back and forth in a straight line in one direction in the second sliding groove 321 . A second notch 222 is provided on the side of the second support member 22 away from the main body bracket 11 . The other end of the second connecting member 42 is located in the second notch 222 and connected with the second notch 222 . The support 22 is connected in a rotational manner. Specifically, the other end of the second connecting member 42 is provided with a cylindrical hole, and the side wall of the second notch 222 of the second supporting member 22 is provided with a corresponding cylindrical hole. The cylindrical shaft 402 is inserted into the cylindrical hole of the second connecting member 42 and the cylindrical hole of the second supporting member 22 to achieve rotational connection between the second connecting member 42 and the second supporting member 22. The axis center of the cylindrical shaft 402 is the rotation axis of the second connecting member 42 . Of course, in other embodiments, the rotational connection between the second connecting member 42 and the second supporting member 22 can also be achieved in other ways.

Referring to FIGS. 6 and 7 , the rotating mechanism 30 further includes a third rotating member 33 and a fourth rotating member 34 . The first rotating member 31 is connected to all parts of the main body bracket 11 through the third rotating member 33 . On one side, the second rotating member 32 is connected to the other side of the main body bracket 11 through the fourth rotating member 34 . Specifically, one end of the third rotating member 33 is rotatably connected to the first rotating member 31, and the rotation axis of the third rotating member 33 is parallel to but not coincident with the rotation axis of the third shaft; The other end of the third rotating member 33 is slidably connected to the side of the main body bracket 11 . One end of the fourth rotating member 34 is rotatably connected to the second rotating member 32, and the rotation axis of the fourth rotating member 34 is parallel to but not coincident with the rotation axis of the fourth shaft; The other end of the rotating member 34 is slidably connected to the other side of the main body bracket 11 .

Specifically, a notch is provided on the side of the first rotating member 31 away from the first connecting member 41 , and the one end of the third rotating member 33 is located in the notch of the first rotating member 31 and is connected with the first rotating member 31 . The first rotating member 31 is rotationally connected. Specifically, the one end of the third rotating member 33 is provided with a cylindrical hole, and the side wall of the notch of the first rotating member 31 is provided with a corresponding cylindrical hole, so that the third cylindrical shaft 403 can pass through it. The cylindrical hole of the third rotating member 33 and the cylindrical hole of the first rotating member 31 are used to realize the rotational connection between the first rotating member 31 and the third rotating member 33 . Of course, in other embodiments, the rotational connection between the first rotating member 31 and the third rotating member 33 can also be achieved in other ways.

The other end of the third rotating member 33 is provided with a first arc-shaped arm 331, and the side of the main body bracket 11 is provided with a first arc-shaped groove 111. The first arc-shaped arm 331 is received in The first arc-shaped groove 111 slides within the first arc-shaped groove 111 . Specifically, the main body bracket 11 also includes at least one first limiting member 1111 and at least one second limiting member 1112. The first limiting member 1111 and the second limiting member 1112 constitute the first arc-shaped groove. 111. The first limiting member 1111 includes a first arc-shaped surface, the second limiting member 1112 includes a second arc-shaped surface, and both the first arc-shaped surface and the second arc-shaped surface face the The first arc-shaped arm 331 is configured to limit the first arc-shaped arm 331 in the first arc-shaped groove 111 .

The second rotating member 32 is provided with a notch on the side away from the second connecting member 42 , and the one end of the fourth rotating member 34 is located in the notch of the second rotating member 32 and connected with the third rotating member 32 . The two rotating parts 32 are rotationally connected. Specifically, the one end of the fourth rotating member 34 is provided with a cylindrical hole, and the side wall of the notch of the second rotating member 32 is provided with a corresponding cylindrical hole, so that the fourth cylindrical shaft 404 can pass through the hole. The cylindrical hole of the fourth rotating member 34 and the cylindrical hole of the second rotating member 32 are used to realize the rotational connection between the second rotating member 32 and the fourth rotating member 34 . Of course, in other embodiments, the rotational connection between the second rotating member 32 and the fourth rotating member 34 can also be achieved in other ways.

The other end of the fourth rotating member 34 is provided with a second arc-shaped arm 341, and the other side of the main body bracket 11 is provided with a second arc-shaped groove 112. The second arc-shaped arm 341 accommodates In the second arc-shaped groove 112 and sliding in the second arc-shaped groove 112 . The specific structure of the second arc-shaped groove 112 may refer to the description of the first arc-shaped groove 111 and will not be described again here.

Further, referring to FIGS. 7 to 9 , the side of the main body bracket 11 is also provided with a third arcuate groove 113 adjacent to the first arcuate groove 111 , that is, the third arcuate groove 113 . The groove 113 and the first arc-shaped groove 111 are arranged in a direction parallel to the first axis. The first support member 21 is provided with a third arc-shaped arm 211 on a side close to the main body bracket 11. The third arc-shaped arm 211 is received in the third arc-shaped groove 113 and is in the third arc-shaped groove 113. Slide in the arc groove 113. The other side of the main body bracket 11 is also provided with a fourth arc-shaped groove 114 adjacent to the second arc-shaped groove 112, that is, the fourth arc-shaped groove 114 and the second arc-shaped groove 114. The grooves 112 are arranged in a direction parallel to the second axis. The second support member 22 is provided with a fourth arc-shaped arm 221 on a side close to the main body bracket 11. The fourth arc-shaped arm 221 is received in the fourth arc-shaped groove 114 and is in the fourth arc-shaped groove 114. Slide in the arc groove 114.

There is an interval between the first arc-shaped groove 111 and the third arc-shaped groove 113, there is an interval between the second arc-shaped groove 112 and the fourth arc-shaped groove 114, and the first arc-shaped groove 111 and the third arc-shaped groove 113 are spaced apart. The arcuate groove 111 is arranged opposite to the fourth arcuate groove 114 so that the first arcuate groove 111 and the fourth arcuate groove 114 are arranged in a direction perpendicular to the first axis; The two arc-shaped grooves 112 and the third arc-shaped groove 113 are arranged opposite each other, so that the second arc-shaped groove 112 and the third arc-shaped groove 113 are also arranged in a direction perpendicular to the first axis, so that The first arcuate grooves 111 and the second arcuate grooves 112 are staggered in a direction parallel to the first axis, and the third arcuate grooves 113 and the fourth arcuate grooves 114 They are also staggered in a direction parallel to the first axis. The specific structures of the third arc-shaped groove 113 and the fourth arc-shaped groove 114 may also refer to the description of the first arc-shaped groove 111 and will not be described again here.

It can be understood that both the first support member 21 and the second support member 22 include a support surface, and the support surface is a flat surface used to support a structural member to be supported, such as a flexible display panel. wait. The third arc-shaped arm 211 is provided on the surface of the first support member 21 away from the supporting surface of the first support member 21 , and the fourth arc-shaped arm 221 is provided on the second support member 22 A surface facing away from the supporting surface of the second supporting member 22 . The first rotating member 31 is located on the side of the first supporting member 21 facing away from the supporting surface of the first supporting member 21 , and the second rotating member 32 is located on the side of the second supporting member 22 facing away from the first supporting member 21 . One side of the supporting surface of the two supporting members 22.

Referring to Figures 10 and 6, the rotating mechanism 30 also includes a third connecting piece 43 and a fourth connecting piece 44. One end of the third connecting piece 43 is slidably connected to the first rotating piece 31. The other end of the third connecting member 43 is fixedly connected to one end of the linkage mechanism 40 , and the rotation axis of the third connecting member 43 is parallel to but not coincident with the axis of the third shaft. In this way, the third connecting member 43 The rotation axis of , the rotation axis of the first rotating member 31 and the rotation axis of the first supporting member 21 are parallel but not coincident. One end of the fourth connecting member 44 is slidably connected to the second rotating member 32 , and the other end of the fourth connecting member 44 is fixedly connected to the other end of the linkage mechanism 40 . The rotation axis of the fourth connecting member 44 is parallel to but not coincident with the axis of the fourth shaft, so that the rotation axis of the fourth connecting member 44, the rotation axis of the second rotating member 32 and the second supporting member 22 The axes of rotation are parallel but not coincident.

The one end of the third connecting member 43 is provided with a third lug, and the side of the first rotating member 31 away from the first support member 21 is provided with a third sliding groove 312. The third lug It is received in the third sliding groove 312 and slides in the third sliding groove 312 . A fourth lug is provided at one end of the fourth connecting member 44 , and a fourth sliding groove 322 is provided on a side of the second rotating member 32 away from the second support member 22 . The fourth lug It is received in the fourth sliding groove 322 and slides in the fourth sliding groove 322 . For specific descriptions of the third sliding groove 312 and the fourth sliding groove 322, reference may be made to the description of the first sliding groove 311 or the description of the second sliding groove 321, and will not be described again here.

Referring to Figures 6 and 11, the rotating mechanism 30 also includes a first rotating shaft 35 and a second rotating shaft 36. The first rotating shaft 35 is fixedly connected to the third connecting piece 43 and is connected to the linkage mechanism. Said one end of 40 is fixedly connected. The second rotating shaft 36 is fixedly connected to the fourth connecting piece 44 and to the other end of the linkage mechanism 40 . The fixed bracket 10 also includes a first bracket 12 and a second bracket 13. The first bracket 12 is located between the second bracket 13 and the main body bracket 11. The linkage mechanism 40 is located on the main body bracket 11. and the first bracket 12 .

The first rotating shaft 35 and the second rotating shaft 36 are rotatably connected to the main body bracket 11 , and the rotating axes of the first rotating shaft 35 and the second rotating shaft 36 are both parallel to the first axis or the second axis. The first bracket 12 and the second bracket 13 are sleeved on the first rotation shaft 35 and the second rotation shaft 36 . The first bracket 12 and the second bracket 13 can slide on the first rotation shaft 35 and the second rotation shaft 36 .

The other end of the third connecting member 43 is sleeved on the first rotating shaft 35. For example, the other end of the third connecting member 43 is provided with a positioning hole through which the first rotating shaft 35 passes. The positioning hole of the third connecting member 43 , and the first rotation shaft 35 is an interference fit with the positioning hole of the third connecting member 43 , so that the rotation of the third connecting member 43 can drive the first Rotation of the rotating shaft 35. The other end of the third connecting member 43 is located on the side of the first bracket 12 away from the linkage mechanism 40 , and the other end of the third connecting member 43 is on the side away from the linkage mechanism 40 . A first cam 431 is provided on one side.

The other end of the fourth connecting member 44 is sleeved on the second rotating shaft 36. For example, the other end of the fourth connecting member 44 is provided with a positioning hole through which the second rotating shaft 36 passes. The positioning hole of the fourth connecting member 44 , and the second rotating shaft 36 is an interference fit with the positioning hole of the fourth connecting member 44 , so that the rotation of the fourth connecting member 44 can drive the second Rotation of the rotating shaft 36. The other end of the fourth connecting member 44 is located on the side of the first bracket 12 away from the linkage mechanism 40 , and the other end of the fourth connecting member 44 is on the side away from the linkage mechanism 40 . A second cam 441 is provided on one side.

The linkage mechanism 40 includes a first linkage part 61, a second linkage part 62 and a third linkage part 63. The first linkage part 61 is connected to the first rotation shaft 35, and the second linkage part 62 is connected to the first rotation shaft 35. The second rotating shaft 36 and the first linking member 61 are synchronously connected to the second linking member 62 through the third linking member 63 so that the first rotating shaft 35 and the second rotating shaft 36 Rotate synchronously.

Specifically, the first linkage 61 includes a first gear, the second linkage 62 includes a second gear, and the third linkage 63 includes two third gears meshing with each other, wherein the two third gears The gear is rotatably connected to the main body bracket 11 and the first bracket 12. The first gear is sleeved on the first rotating shaft 35, and the second gear is sleeved on the second rotating shaft 36. , the first gear meshes with one of the two third gears, and the second gear meshes with the other of the two third gears. Specifically, the first gear is provided with a positioning hole, the first rotation shaft 35 passes through the positioning hole on the first gear, and the positioning of the first rotation shaft 35 and the first gear is The hole interference fit enables the rotation of the first rotation shaft 35 to drive the rotation of the first gear. Similarly, the second gear is provided with a positioning hole, and the second rotation shaft 36 passes through the positioning hole on the second gear, and the second rotation shaft 36 and the positioning hole of the second gear The interference fit enables the rotation of the second rotation shaft 36 to drive the rotation of the second gear or the rotation of the second gear to drive the rotation of the second rotation shaft 36 . The rotation axis of the third connecting member 43 , the rotation axis of the first gear and the rotation axis of the first rotation shaft 35 coincide with each other, and the rotation axis of the fourth connecting member 44 and the rotation axis of the first gear 35 coincide with each other. The rotation axis of the second gear coincides with the rotation axis of the second rotation shaft 36 .

Through the connection of the above-mentioned mechanical components, when the hinge structure 100 is converted from the flat state of FIG. 1 to the folded state of FIG. 3 under the action of an external force, taking the first rotating member 31 being acted upon by an external force as an example, the The first rotating member 31 is rotationally connected to the main body bracket 11 through the third rotating member 33. When the first rotating member 31 is acted upon by an external force, the first rotating member 31 passes through the third rotating member 33 under the action of an external force. The three rotating members 33 rotate relative to the main body bracket 11 .

The third connecting member 43 is slidingly connected to the first rotating member 31. The rotation of the first rotating member 31 will drive the rotation of the third connecting member 43, so that the third connecting member 43 can rotate relative to the first rotating member 31. The rotating member 31 slides for displacement compensation. At the same time, one end of the first connecting member 41 is slidingly connected to the first rotating member 31 , and the other end of the first connecting member 41 is rotationally connected to the first supporting member 21 . Thus, due to the third connecting member The displacement compensation sliding of 43 relative to the first rotating member 31 will drive the sliding of the first connecting member 41 . The first connecting member 41 will slide along the first sliding groove 311 of the first rotating member 31 under the action of force, thereby driving the first supporting member 21 to rotate. Under the action of the first connecting member 41 and the third arc-shaped groove 113 , the first support member 21 surrounds the first support member 21 at an end close to the main body bracket 11 When the shaft rotates, the end close to the first connecting member 41 will perform displacement compensation as the first connecting member 41 moves.

It can be understood that one end of the first support member 21 is rotatably connected to the main body bracket 11, and the other end of the first support member 21 is rotatably connected to the first connecting member 41, and the first connecting member 41 is rotatably connected to the first connecting member 41. One end of the first connecting member 41 is slidingly connected to the first rotating member 31, while the other end of the first connecting member 41 is rotationally connected to the first supporting member 21, so that the two first supporting members 21 can be The rotational connection constrains degrees of freedom and compensates for displacement, making the rotation of the hinge structure 100 more stable. At the same time, after the hinge structure 100 is folded, the side of the first support member 21 close to the main bracket 11 forms an avoidance space. , as shown in Figure 12. Specifically, the gap between the side of the first support member 21 close to the main body bracket 11 and the first rotating member 31 is smaller than the gap between the side of the first support member 21 away from the main body bracket 11 and the first rotating member 31 . The gap between the first rotating parts 31.

In addition, since the first rotating member 31 drives the third connecting member 43 to rotate, and the third connecting member 43 is also fixedly connected to the first rotating shaft 35, the rotation of the third connecting member 43 This will drive the first rotation shaft 35 to rotate. At the same time, the first rotation shaft 35 is also fixedly connected to the first linkage member 61 , so that the rotation of the first rotation shaft 35 will drive the rotation of the first linkage member 61 . And the first linkage 61 is synchronously connected to the second linkage 62 through the third linkage 63 so that the first rotation shaft 35 and the second rotation shaft 36 rotate synchronously, then the third The rotation of one linkage member 61 will drive the rotation of the second linkage member 62 , so that the synchronous rotation of both sides of the hinge structure 100 is achieved through the linkage mechanism 40 .

Specifically, the second linkage member 62 is fixedly connected to the second rotation shaft 36 , and the rotation of the second linkage member 62 will drive the rotation of the second rotation shaft 36 . The fourth connecting member 44 is fixedly connected to the second rotating shaft 36, and the rotation of the second rotating shaft 36 will drive the rotation of the fourth connecting member 44. The fourth connecting member 44 is also slidingly connected to the second rotating member 32 , and the rotation of the fourth connecting member 44 will drive the rotation of the second rotating member 32 . The rotation of the second rotating member 32 will drive the rotation of the second connecting member 42 . Specifically, one end of the second connecting member 42 is slidingly connected to the second rotating member 32, and the other end of the second connecting member 42 is rotationally connected to the second supporting member 22. As described in the second The rotation of the rotating member 32 will cause the second connecting member 42 to slide. The second connecting member 42 will slide along the second sliding groove 321 of the second rotating member 32 under the action of force, thereby driving the second supporting member 22 to rotate. Under the action of the second connecting member 42 and the fourth arc-shaped groove 114 , the second supporting member 22 surrounds the second supporting member 22 at an end close to the main body bracket 11 When the shaft rotates, the end close to the second connecting member 42 will perform displacement compensation as the second connecting member 42 moves.

It can be understood that one end of the second support member 22 is rotationally connected to the main body bracket 11 , and the other end of the second support member 22 is rotationally connected to the second connecting member 42 , and the second connecting member 42 is rotationally connected to the main body bracket 11 . One end of the second connecting member 42 is slidably connected to the second rotating member 32, and the other end of the second connecting member 42 is rotationally connected to the second supporting member 22, so that the two second supporting members 22 can be connected. The rotational connection constrains degrees of freedom and performs displacement compensation to make the rotation of the hinge structure 100 more stable, thus achieving bilateral synchronous and smooth rotation of the hinge structure 100 . At the same time, after the hinge structure 100 is folded, an avoidance space is formed on the side of the second support member 22 close to the main body bracket 11 , as shown in FIG. 12 . Specifically, the gap between the side of the second support member 22 close to the main body bracket 11 and the second rotating member 32 is smaller than the gap between the side of the second support member 22 away from the main body bracket 11 and the side of the second support member 22 close to the main body bracket 11 . The gap between the second rotating parts 32 . When the hinge structure 100 transitions from the folded state shown in FIG. 2 to the flattened state shown in FIG. 1 , the motion principle of each mechanical component is the same as that of each mechanical component when the hinge structure 100 transitions from the flattened state to the folded state. The principle of movement is the same and will not be repeated here.

Further, the hinge structure 100 also includes a positioning mechanism 50. The positioning mechanism 50 includes a positioning member 51. The positioning member 51 is sleeved on the first rotation shaft 35 and the second rotation shaft 36. A first concave wheel 511 matching the first cam 431 is provided on the side of the positioning member 51 close to the third connecting member 43 , and a first concave wheel 511 is provided on the side of the positioning member 51 close to the fourth connecting member 44 . There is a second concave wheel 512 adapted to the second cam 441 .

The positioning mechanism 50 also includes a first elastic member 52 and a second elastic member 53, wherein the first elastic member 52 is sleeved on the first rotation shaft 35, and one end of the first elastic member 52 is connected to The other ends of the positioning member 51 and the first elastic member 52 are connected to the second bracket 13 . The second elastic member 53 is sleeved on the second rotating shaft 36 . The second elastic member 53 One end of the second elastic member 53 is connected to the positioning member 51 , and the other end of the second elastic member 53 is connected to the second bracket 13 . The positioning member 51 can perform translational movement along the first rotation axis 35 and the second rotation axis 36 , and both the first elastic member 52 and the second elastic member 53 are in an elastic deformation state.

It can be understood that the first cam 431 and the first concave wheel 511 are adapted to form a cam pair, and the second cam 441 and the second concave wheel 512 are adapted to form a cam pair. Taking the first cam 431 as an example, as shown in FIG. 13 , the first cam 431 and the first concave wheel 511 are adapted to each other. When the third connecting member 43 and the fourth connecting member 44 rotate, the first cam 431 on the third connecting member 43 is in plane contact with the first concave wheel 511 on the positioning member 51, The second cam 441 on the fourth connecting member 44 is in plane contact with the second concave wheel 512 on the positioning member 51. At the same time, since the first elastic member 52 and the second elastic member 53 are both in compression, state, in this way, a pre-tightening force can be applied to the two pairs of cams, so that the cams and the corresponding concave wheels fit tightly, so that the hinge structure 100 is always in a flattened or folded state when no external force is exerted. In particular, when the hinge structure 100 is in a flat state, it will not rebound when placed on the front and will not sag when placed on the reverse.

In addition, when the hinge structure 100 rotates and one end of the third connecting member 43 and the fourth connecting member 44 close to the first bracket 12 rotates, due to the movement and action of the cam pair, the third connecting member 43 and the fourth connecting member 44 rotate. The force received during the rotation of the third connecting member 43 and the fourth connecting member 44 will change. Through the changes formed by the cam pair, the hinge structure 100 can automatically close when bent from 0 to 30 degrees, freely hover when bent from 30 to 150 degrees, and can freely hover when bent from 150 to 180 degrees. It can be automatically flattened.

Specifically, when the hinge structure 100 is in a flat state or a folded state, the first cam 431 on the third connecting member 43 is in contact with the curved surface of the first concave wheel 511 on the positioning member 51 . The second cam 441 on the fourth connecting member 44 contacts the curved surface of the second concave wheel 512 on the positioning member 51 . When the hinge structure 100 rotates to about 30 degrees, the first cam 431 on the third connecting member 43 contacts the plane of the first concave wheel 511 on the positioning member 51, and the fourth The second cam 441 on the connecting member 44 contacts the plane of the second concave wheel 512 on the positioning member 51 to achieve free hovering. When the hinge structure 100 is bent from a free hovering state to a flattened state or a folded state, the cam pair changes from flat contact to curved surface contact. At this time, the cam pair will receive a tangential force from the curved surface, causing the hinge structure 100 to automatically expand. Flat or self-closing.

An embodiment of the present application also provides an electronic device, which includes the hinge structure 100 of one of the previous embodiments. The electronic device can be folded through the hinge structure 100 . The electronic devices include mobile phones, tablets, computers, wearable electronic devices, etc.

According to the above embodiments, it can be known that:

The present application provides a hinge structure and an electronic device. The fixed bracket of the hinge structure includes a main body bracket. The support mechanism includes a first support member and a second support member located on opposite sides of the main body support. The first support member is rotatable. Connected to one side of the main body bracket, the second support member is rotatably connected to the other side of the main body bracket. The rotation mechanism includes a first rotating member, a second rotating member, a first connecting member and a second Connecting member, the first rotating member is rotatably connected to the one side of the main body bracket, the second rotating member is rotatably connected to the other side of the main body bracket, the first rotating member is rotatably connected to the other side of the main body bracket. The support member is connected to the first rotating member through a first connecting member, and the first supporting member is formed on one side of the first rotating member, and the second supporting member is connected to the second rotating member through a second connecting member, And the second support member is formed on one side of the second rotating member, and the first rotating member connects the second rotating member through a linkage mechanism, so that the first rotating member and the second rotating member The rotating parts rotate synchronously to achieve synchronous rotation of the hinge structure.

In the above embodiments, each embodiment is described with its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

The embodiments of the present application have been introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application; this field Those of ordinary skill should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not deviate from the essence of the corresponding technical solutions in this application. The scope of the technical solutions of each embodiment.

Claims (20)

1. A hinge structure including:

   Fixed bracket, including main bracket;

   A support mechanism includes a first support member and a second support member located on opposite sides of the main body support. The first support member is rotatably connected to one side of the main body support, and the second support member is rotatably connected to one side of the main body support. Connected to the other side of the main body bracket;

   The rotating mechanism includes a first rotating member, a second rotating member, a first connecting member and a second connecting member. The first rotating member is rotatably connected to the side of the main body bracket, and the second rotating member is rotatably connected to the side of the main body bracket. The first supporting member is rotatably connected to the other side of the main body bracket, the first supporting member is connected to the first rotating member through the first connecting member, and the first supporting member is formed on the first On one side of a rotating member, the second supporting member is connected to the second rotating member through the second connecting member, and the second supporting member is formed on one side of the second rotating member;

   Linkage mechanism, the first rotating member is connected to the second rotating member through the linkage mechanism, so that the first rotating member and the second rotating member rotate synchronously.
2. The hinge structure according to claim 1, wherein one end of the first connecting member is slidably connected to the first rotating member, and the other end of the first connecting member is rotatably connected to the first rotating member. Support member; one end of the second connecting member is slidably connected to the second rotating member, and the other end of the second connecting member is rotatably connected to the second supporting member.
3. The hinge structure according to claim 2, wherein the one end of the first connecting member is provided with a first lug, and the side of the first rotating member away from the main body bracket is provided with a first sliding groove, The first lug is received in the first sliding groove and slides in the first sliding groove;

   A second lug is provided at one end of the second connecting member, a second sliding groove is provided on a side of the second rotating member away from the main body bracket, and the second lug is received in the second in the sliding groove and slides in the second sliding groove.
4. The hinge structure according to claim 2, wherein the rotating mechanism further includes a third rotating member and a fourth rotating member, the first rotating member is connected to the first rotating member of the main body bracket through the third rotating member. side, the second rotating member is connected to the other side of the main body bracket through the fourth rotating member; one end of the third rotating member is rotatably connected to the first rotating member, and the third rotating member is rotatably connected to the first rotating member. The other end of the three rotating parts is slidably connected to the side of the main body bracket; one end of the fourth rotating part is rotatably connected to the second rotating part, and the other end of the fourth rotating part Slideably connected to the other side of the main body bracket.
5. The hinge structure according to claim 4, wherein the other end of the third rotating member is provided with a first arc-shaped arm, and the side of the main body bracket is provided with a first arc-shaped groove, and the The first arc-shaped arm is received in the first arc-shaped groove and slides in the first arc-shaped groove;

   The other end of the fourth rotating member is provided with a second arc-shaped arm, the other side of the main body bracket is provided with a second arc-shaped groove, and the second arc-shaped arm is received in the second arc-shaped arm. in the arc-shaped groove and slides in the second arc-shaped groove.
6. The hinge structure according to claim 5, wherein the main body bracket further includes at least a first limiting member and at least a second limiting member, the first limiting member and the second limiting member constitute The first arc-shaped groove, the first limiting member includes a first arc-shaped surface, the second limiting member includes a second arc-shaped surface, the first arc-shaped surface and the second arc-shaped surface Both surfaces face the first arc-shaped arm to limit the first arc-shaped arm in the first arc-shaped groove.
7. The hinge structure according to claim 5, wherein the side of the main body bracket is further provided with a third arc-shaped groove adjacent to the first arc-shaped groove, and the first support member is close to the A third arc-shaped arm is provided on one side of the main body bracket, and the third arc-shaped arm is received in the third arc-shaped groove and slides in the third arc-shaped groove;

   The other side of the main body bracket is also provided with a fourth arc-shaped groove adjacent to the second arc-shaped groove, and the second support member is provided with a fourth arc-shaped groove on one side close to the main body bracket. arm, the fourth arc-shaped arm is received in the fourth arc-shaped groove and slides in the fourth arc-shaped groove.
8. The hinge structure according to claim 7, wherein there is an interval between the first arcuate groove and the third arcuate groove, and there is an interval between the second arcuate groove and the fourth arcuate groove. spaced apart, and the first arc-shaped groove and the fourth arc-shaped groove are arranged oppositely, and the second arc-shaped groove and the third arc-shaped groove are arranged oppositely.
9. The hinge structure according to claim 1, wherein the rotating mechanism further includes a third connecting piece and a fourth connecting piece, one end of the third connecting piece is slidably connected to the first rotating piece, and the The other end of the third connecting piece is fixedly connected to one end of the linkage mechanism; one end of the fourth connecting piece is slidably connected to the second rotating member, and the other end of the fourth connecting piece is connected to the linkage mechanism. The other end of the mechanism is fixedly connected.
10. The hinge structure according to claim 9, wherein the one end of the third connecting member is provided with a third lug, and the side of the first rotating member away from the first supporting member is provided with a third sliding member. groove, the third lug is received in the third sliding groove and slides in the third sliding groove;

    A fourth lug is provided at one end of the fourth connecting member, a fourth sliding groove is provided on a side of the second rotating member away from the second support member, and the fourth lug is received in the In the fourth sliding groove and sliding in the fourth sliding groove.
11. The hinge structure according to claim 9, wherein the rotating mechanism further includes a first rotating shaft and a second rotating shaft, the first rotating shaft is fixedly connected to the third connecting piece and is connected to the linkage mechanism The one end is fixedly connected; the second rotation shaft is fixedly connected with the fourth connecting piece, and is fixedly connected with the other end of the linkage mechanism.
12. The hinge structure according to claim 11, wherein the fixed bracket further includes a first bracket and a second bracket, the first bracket is located between the second bracket and the main body bracket, and the linkage mechanism is Between the first bracket and the main body bracket, wherein the first rotation axis and the second rotation axis are rotatably connected to the main body bracket, the first bracket and the second bracket sleeved on the first rotating shaft and the second rotating shaft.
13. The hinge structure according to claim 12, wherein the linkage mechanism includes a first linkage member, a second linkage member and a third linkage member, the first linkage member is connected to the first rotation shaft, and the third linkage member is connected to the first rotation shaft. Two linkage pieces are connected to the second rotation shaft, and the first linkage piece is synchronously connected to the second linkage piece through the third linkage piece to synchronize the first rotation shaft and the second rotation shaft. Turn.
14. The hinge structure according to claim 13, wherein the first linkage includes a first gear, the second linkage includes a second gear, and the third linkage includes two third gears meshing with each other, wherein , the two third gears are rotatably connected to the main body bracket and the first bracket, the first gear is sleeved on the first rotating shaft, and the second gear is sleeved on the second Rotating shaft, the first gear meshes with one of the two third gears, and the second gear meshes with the other of the two third gears.
15. The hinge structure according to claim 12, wherein the other end of the third connecting member is sleeved on the first rotation shaft and is located on a side of the first bracket away from the linkage component; The other end of the fourth connecting member is sleeved on the second rotation shaft and is located on the side of the first bracket away from the linkage component.
16. The hinge structure according to claim 15, wherein the other end of the third connecting member is provided with a first cam on a side away from the linkage component, and the other end of the fourth connecting member is on A second cam is provided on the side away from the linkage component;

    The hinge structure also includes a positioning mechanism. The positioning mechanism includes a positioning piece. The positioning piece is sleeved on the first rotating shaft and the second rotating shaft. The positioning piece is close to the third connecting member. A first concave wheel matching the first cam is provided on one side, and a second concave wheel matching the second cam is provided on a side of the positioning member close to the fourth connecting member.
17. The hinge structure according to claim 16, wherein the positioning mechanism further includes a first elastic member and a second elastic member, wherein the first elastic member is sleeved on the first rotation axis, and the first elastic member One end of the elastic member is connected to the positioning member, the other end of the first elastic member is connected to the second bracket, the second elastic member is sleeved on the second rotating shaft, and the second elastic member One end of the second elastic member is connected to the positioning member, and the other end of the second elastic member is connected to the second bracket. Both the first elastic member and the second elastic member are in an elastic deformation state.
18. An electronic device includes a hinge structure, the hinge structure includes:

    Fixed bracket, including main bracket;

    A support mechanism includes a first support member and a second support member located on opposite sides of the main body support. The first support member is rotatably connected to one side of the main body support, and the second support member is rotatably connected to one side of the main body support. Connected to the other side of the main body bracket;

    The rotating mechanism includes a first rotating member, a second rotating member, a first connecting member and a second connecting member. The first rotating member is rotatably connected to the side of the main body bracket, and the second rotating member is rotatably connected to the side of the main body bracket. The first supporting member is rotatably connected to the other side of the main body bracket, the first supporting member is connected to the first rotating member through the first connecting member, and the first supporting member is formed on the first On one side of a rotating member, the second supporting member is connected to the second rotating member through the second connecting member, and the second supporting member is formed on one side of the second rotating member;

    Linkage mechanism, the first rotating member is connected to the second rotating member through the linkage mechanism, so that the first rotating member and the second rotating member rotate synchronously.
19. The electronic device according to claim 18, wherein one end of the first connecting member is slidably connected to the first rotating member, and the other end of the first connecting member is rotatably connected to the first rotating member. Support member; one end of the second connecting member is slidably connected to the second rotating member, and the other end of the second connecting member is rotatably connected to the second supporting member.
20. The electronic device according to claim 18, wherein the rotating mechanism further includes a third connecting member and a fourth connecting member, one end of the third connecting member is slidably connected to the first rotating member, and the The other end of the third connecting piece is fixedly connected to one end of the linkage mechanism; one end of the fourth connecting piece is slidably connected to the second rotating member, and the other end of the fourth connecting piece is connected to the linkage mechanism. The other end of the mechanism is fixedly connected.

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