WO2021088020A1

WO2021088020A1 - Electronic device

Info

Publication number: WO2021088020A1
Application number: PCT/CN2019/116806
Authority: WO
Inventors: 廖德知; 韦炜
Original assignee: 深圳市柔宇科技有限公司
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2021-05-14
Also published as: CN113366817A

Abstract

The present invention provides an electronic device. The electronic device comprises a flexible member and a movable member. The flexible member comprises a bendable portion and a first connection portion close to the bendable portion. The movable member is connected to the first connection portion. When the flexible member is in a bent state, the movable member can be separated from the bendable portion. When the flexible member is in an unfolded state, the movable member can abut against the bendable portion. According to the electronic device in the present application, the bendable portion of the flexible member in the unfolded state can be supported by means of the movable member.

Description

Electronic device

Technical field

The invention relates to the field of flexible screens, in particular to an electronic device with a flexible screen.

Background technique

In the current foldable terminal, the flexible display screen can be bent and folded by using a folding device. For an inward-folding terminal, it is desirable that the flexible display screen is bent with a predetermined curvature after the terminal is folded, and the flexible display screen is unfolded after the terminal is unfolded. Since the flexible display screen needs to be touched or pressed by the user after unfolding, it is necessary to provide a device that can support the flexible display screen during unfolding.

Summary of the invention

The object of the present invention is to provide an electronic device.

The present invention provides an electronic device, wherein the electronic device includes a flexible part and a movable part, the flexible part includes a bendable part and a first connecting part close to the bendable part, and the movable part is connected to the first connecting part. In the connecting part, when the flexible part is in a bent state, the movable part can be separated from the bendable part, and when the flexible part is in an unfolded state, the movable part can abut against the bendable part.

In the electronic device provided by the present application, when the flexible part is bent, the movable part is separated from the bendable part of the flexible part; when the flexible part is unfolded, the movable part abuts against the bendable part of the flexible part, so the electronic device of the present application can pass The movable part supports the bendable part of the flexible part in the unfolded state.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present invention more clearly, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention, which are common in the art. As far as technical personnel are concerned, they can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic diagram of a folded state of an electronic device according to an embodiment of the application;

2 is a schematic diagram of a three-dimensional cross-sectional view of an electronic device in an unfolded state according to an embodiment of the application;

3 is a schematic cross-sectional view of an electronic device provided by an embodiment of the application in an unfolded state;

4 is a schematic cross-sectional view of an electronic device in a folded state according to an embodiment of the application;

FIG. 5 is an exploded schematic diagram of an electronic device provided by an embodiment of this application;

FIG. 6 is a schematic diagram of bending of a flexible display screen of an electronic device according to an embodiment of the application;

FIG. 7 is another exploded schematic diagram of the electronic device provided by the embodiment of the application;

FIG. 8 is a schematic diagram of a first rotating shaft assembly of an electronic device according to an embodiment of the application;

FIG. 9 is a schematic diagram of a second shaft assembly of an electronic device according to an embodiment of the application;

FIG. 10 is an exploded schematic diagram of the second shaft assembly of the electronic device according to the embodiment of the application;

FIG. 11 is a partial three-dimensional schematic diagram of an electronic device provided by an embodiment of this application;

FIG. 12 is a partial three-dimensional schematic diagram of an electronic device according to an embodiment of the application.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Please refer to FIG. 1, FIG. 2 and FIG. 3. The present application provides an electronic device 1000. The electronic device 1000 includes a flexible member and a movable member. The flexible member includes a bendable portion 120 and a first portion close to the bendable portion 120. The connecting part 111, the movable part is connected to the first connecting part 111, when the flexible part is in a bent state, the movable part can be separated from the bendable part 120, and when the flexible part is in an unfolded state, The movable part can abut against the bendable part.

Specifically, the electronic device 1000 includes a flexible display screen 100 and a foldable device 200. The flexible display screen 100 includes two connecting parts 110 that can be turned over and a bendable part 120 connected between the two connecting parts 110. The foldable device 200 includes a rotating shaft base 210 and two main bodies 220 arranged on both sides of the rotating shaft base 210 and capable of rotating around the rotating shaft base 210. The two main bodies 220 respectively drive the two connecting parts 110 to turn around the shaft base 210. Among them, the flexible display screen 100 is a flexible member of the embodiment of the application. The connecting portion 110 includes a first connecting portion 111 connecting the bendable portion 120. The main body 220 includes a movable plate 221 connected to the shaft base 210, and the movable plate 221 is a movable part of the embodiment of the application. Of course, in other embodiments, the whole body 220 can also be the movable part of the embodiment of the present application, or other parts of the main body 220 connected to the movable plate 221 and the movable plate 221 together constitute the movable part of the embodiment of the present application.

When the two main bodies 220 rotate around the rotating shaft base 210 to expand to each other, the two connecting parts 110 and the bendable part 120 are both in the initial development plane 1001, the movable plate 221 and the supportable bendable part 120, namely the bendable part 120 Contact with moving parts.

When the two main bodies 220 drive the two connecting parts 110 to rotate around the shaft base 210 to a superimposed state, the two connecting parts 110 are arranged opposite to each other, and the bendable part 120 is bent. Optionally, the bendable portion 120 is bent into an arc shape. The movable plate 221 rotates around the rotating shaft base 210 to be separated from the bendable part 120, that is, the movable part is separated from the bendable part 120.

It can be understood that the connecting portion 110 is a part of the flexible display screen 100 that is turned around the rotating shaft base 210. The two connecting parts 110 can be turned around the rotating shaft base 210 to a mutually expanded or mutually overlapped state, so as to realize the flat state or the folded state of the electronic device 1000. The electronic device 1000 may be a mobile phone, a notebook computer, a tablet computer, an e-reader, and other devices.

The two main bodies 220 of the foldable device 200 drive the connecting portion 110 of the flexible display screen 100 to turn and close around the shaft base 210, and the end of the bendable portion 120 can move toward the geometric centerline of the shaft base 210. Optionally, the end of the bendable portion 120 can be rotated relative to the geometric centerline of the shaft base 210. Optionally, the end of the bendable portion 120 can slide relative to the geometric centerline of the shaft base 210. Optionally, the end of the bendable portion 120 can rotate and slide relative to the geometric centerline of the shaft base 210. Therefore, the length of the bendable portion 120 remains unchanged or substantially unchanged before and after bending, avoiding or reducing the situation that the bendable portion 120 is stretched or compressed after bending, and the flexible display screen 100 is ensured. Security.

Please refer to FIG. 3, FIG. 4 and FIG. 5. In this embodiment, the bendable portion 120 is integrated with the two connecting portions 110. The bendable part 120 is located between the two connecting parts 110. The boundary between the bendable portion 120 and the connecting portion 110 is based on the boundary between the freely bendable portion of the flexible display screen 100 and the non-freely bendable portion during the transition of the flexible display screen 100 from the flat state to the folded state. The freely bending part of the flexible display screen 100 refers to the part that can be bent roughly in an arc-shaped curved surface during the folding process, and the non-freely bending part refers to the roughly flat part during the folding process, or roughly two parts. Or the part where two or more planes are continuously bent. Optionally, the bendable portion 120 is an area that is not subjected to external force during the change process of the flexible display screen 100 from the flat state to the folded state, and the connecting portion 110 is the change from the flat state to the folded state of the flexible display screen 100 The area affected by external forces during the process. The flexible display screen 100 has a display surface 130. The two main bodies 220 are connected to the side of the flexible display screen 100 away from the display surface 130. Specifically, in this embodiment, the flexible display screen 100 is located on the inner side of the foldable device 200 to form an inner folding screen.

Specifically, the flexible display screen 100 includes two relatively short sides 101 and two relatively long sides 102. Each long side 102 is connected between two short sides 101. The two short sides 101 are respectively disposed on the two connecting parts 110. The short side 101 is formed at the end of the connecting portion 110 away from the bendable portion 120. The length of the long side 102 can be understood as the length of the flexible display screen 100. The long side 102 includes a flip side 1021 provided on the connecting portion 110 and a free side 1022 provided on the bendable portion 120. The length of the flip side 1021 can be understood as the length or width of the connecting portion 110, and the length of the free side 1022 can be understood as the length or width of the bendable portion 120.

In this embodiment, the rotation axis of the main body 220 about the rotation axis base 210 is parallel to the short side 101 of the flexible display screen 100. When the flexible display screen 100 is in the unfolded state, the two main bodies 220 can respectively support the two connecting parts 110, and the hinge base 210 can support the bendable part 120, so that the unfolded flexible display screen 100 can be stable and stable. Folding device 200. When the two main bodies 220 are superimposed, the two connecting parts 110 and the bendable part 120 are both located between the two main bodies 220, and the bendable part 120 can be suspended above the hinge base 210, that is, the flexible display screen 100 is in a bent state. In the state, the bendable portion 120 is in a free state, so that the foldable device 200 can effectively protect the flexible display screen 100.

It can be understood that when the two main bodies 220 drive the two connecting parts 110 to expand each other, the flexible display screen 100 is in a flat state, that is, the connecting part 110 and the bendable part 120 are flush, and the display surface 130 forms a flat surface. The display surface 130 of the flexible display screen 100 in the flattened state can be understood as the initial flattened plane 1001. Of course, the neutral surface of the layer structure of the flexible display screen 100 in the flattened state can also be understood as the initial development plane 1001, or the backside of the flexible display screen 100 far away from the display surface 130 in the flattened state can be understood as the initial development plane 1001 .

Please refer to Figure 3, Figure 4 and Figure 6, in the embodiment of the present application, the initial development plane 1001 is only used as the flexible display screen 100 in the process of changing from the flat state to the folded state, the image of the flexible display screen 100 is simplified into a flexible display The curved surface is a reference surface for position change, and is not used as an actual component structure to limit the electronic device 1000. Both the connecting portion 110 and the bendable portion 120 can be visually simplified as a part of a foldable plane. As shown in FIG. 6, the flexible display screen 100 is represented by lines A, A`, the connecting portion 110 and the bendable portion 120 are both represented by a part of the lines A, A`, and the end of the bendable portion 120 can be understood as the line A. Two points in the diagram. As shown in FIG. 6, the two ends of the bendable portion 120 in a flat state are indicated by an end point a and an end point a'. The two ends of the bendable portion 120 in the bent state are indicated by an end point b and an end point b'. When the two main bodies 220 drive the two connecting parts 110 to rotate around the shaft base 210 to overlap each other, the end of the bendable part 120 moves inward, that is, the end point a moves along the initial development plane 1001 to the end point b. That is, when the flexible display screen 100 is bent, the abutment between the first connecting portion 111 and the bendable portion 120 moves from a position away from the bending center plane of the flexible display screen 100 to a position close to the bending center plane of the flexible display screen 100. Conversely, when the two main bodies 220 drive the two connecting parts 110 to rotate around the shaft base 210 from the superimposed state to the unfolded state, the end of the bendable part 120 moves from the end point b to the end point a. That is, when the flexible display screen 100 is unfolded, the abutment between the first connecting portion 111 and the bendable portion 120 moves from a position close to the curved center plane of the flexible display screen 100 to a position away from the curved center plane of the flexible display screen 100.

The retracted distance between the two ends of the bendable portion 120 refers to the linear distance between the two ends of the bendable portion 120 in the bent state, that is, the retracted distance of the bendable portion 120 is the distance from the end point b to the end point b'. The expanded state distance between the two ends of the bendable portion 120 refers to the linear distance between the two ends of the bendable portion 120 in the flat state, that is, the expanded state distance of the bendable portion 120 is the distance from the end point a to the end point a'.

It is understandable that the connecting portion 110 does not always undergo bending deformation during the change from the unfolded state to the folded state of the electronic device 1000, that is, the length of the connecting portion 110 will never change, that is, the electronic device 1000 is in the unfolded state to the folded state. During the change process, the length of the entire flexible display screen 100 will not change, which ensures the safety of the flexible display screen 100.

When the two ends of the bendable part 120 move from the end point a and the end point a'to the end point b and the end point b'respectively, the foldable device 200 is in a tightly closed state, that is, the two main bodies 220 are closed, and the two connecting parts 110 cannot continue. The two connecting parts 110 may be close to each other in a partial area, or the ends of the two connecting parts 110 may be close together, and there may also be a preset distance between the two connecting parts 110. The bendable portion 120 may be bent substantially in a "U"-shaped curved surface. Optionally, when the foldable device 200 is in the folded state, the two main bodies 220 are attached to each other and parallel to each other. When the two ends of the bendable part 120 move from the end point b and the end point b` to the end point a and the end point a` respectively, the two main bodies 220 expand each other, and the two main bodies 220 and the two connecting parts 110 cannot continue to rotate around the base 210 The unfolding movement is performed to ensure the safety of the flexible display screen 100. Understandably, when the flexible display screen 100 is in a bent state, the length of the arc of the bendable portion 120 is greater than π×R, where R is the bending radius of the bendable portion 120 in the bent state.

Further, the connecting portion 110 includes a first connecting portion 111 connected to the bendable portion 120 and a second connecting portion 112 connected to an end of the first connecting portion 111 away from the bendable portion 120. When the two connecting portions 110 are in a superimposed state, The two second connecting portions 112 are closed, and the two first connecting portions 111 are close to each other at an included angle. Optionally, the two second connecting portions 112 are parallel and attached to each other, and an acute angle is formed between the two first connecting portions 111. Since the two second connecting parts 112 can be attached to each other, the area outside the flexible display screen 100 after being folded can be reduced, and the damage of the flexible display screen 100 can be reduced; and the overall cost of the electronic device 1000 after being folded can be reduced. Thickness improves the portability of the whole electronic device 1000.

In this embodiment, the first connecting portion 111 is connected to the end of the bendable portion 120. The second connecting portion 112 is connected to the end of the first connecting portion 111 away from the bendable portion 120. During the change from the unfolded state to the folded state of the electronic device 1000, the first connecting portion 111 is bent relative to the second connecting portion 112, so that the second connecting portion 112 can be attached to each other by the electronic device. The first connecting portion 111 is integrally connected with the bendable portion 120 and the second connecting portion 112. When the bendable portion 120 is in a bent and deformed state, the first connecting portion 111 and the bendable portion 120 are in a structure in which a plane and a curved surface are tangent. That is, the end of the bending portion 120 adjacent to the first connecting portion 111 is tangent to the end of the first connecting portion 111 adjacent to the bendable portion 120. When the connecting portion 110 is in a superimposed state, the first connecting portion 111 and the second connecting portion 112 generally form a structure with an angle between two planes.

It is understandable that the two second connecting portions 112 can be closed, so that the two connecting portions 110 can be tightly closed to ensure that the two main bodies 220 can be tightly closed, and the two first connecting portions 111 are close to each other at an angle. , It is ensured that the bending radius of the bendable portion 120 does not exceed the bending radius, and the safety of the flexible display screen 100 is ensured. When the two connecting parts 110 are in a superimposed state, the two first connecting parts 111 and the bendable part 120 are approximately in a drop-like structure, and the two first connecting parts 111 and the bendable part 120 are housed in the two main bodies 220 and the rotating shaft. Between the bases 210, the safety of the flexible display screen 100 is ensured.

During the transition of the two connecting parts 110 from the unfolded state to the superimposed state, the first connecting part 111 can rotate relative to the second connecting part 112, and there is a small gap between the first connecting part 111 and the second connecting part 112. Part of it is bent and deformed.

Further, the main body 220 is provided with a movable plate 221 which is rotatably connected to the shaft base 210, and the movable plate 221 drives the first connecting portion 111 to rotate from the initial development plane 1001 to a close state to rotate at a preset rotation angle α, and the bending portion 120 The end moves forward and backward to form a connection line B; the rotation axis of the movable plate 221 is located on the vertical line C of the connection line B, and the angle between the rotation axis of the movable plate 221 and the two ends of the connection line B is equal to the preset rotation angle α .

In this embodiment, the movable plate 221 rotates around the rotating shaft base 210. The rotation axis of the movable plate 221 is parallel to the length direction of the rotation axis base 210 to facilitate driving the first connecting portion 111 to rotate relative to the rotation axis base 210. The side of the movable plate 221 facing the flexible display screen 100 is a flat surface. The first connecting portion 111 is attached to the movable plate 221 to ensure that the first connecting portion 111 is always in a flat state. The movable plate 221 can completely cover the first connecting portion 111 to ensure that the movable plate 221 can effectively support the first connecting portion 111. Optionally, the first connecting portion 111 may be fixed on the movable plate 221. Optionally, one end of the first connecting portion 111 adjacent to the bendable portion 120 is fixed on the movable plate 221, and the opposite end away from the bendable portion 120 is fixed on the movable plate 221.

The end point a and the end point b can also be regarded as two different positions at which the end of the first connecting portion 111 is connected to the bendable portion 120 to rotate around the shaft base 210, that is, the end point a and the end point b are connected to the bendable portion at the first connecting portion 111. The end of the part 120 is on the trajectory of rotation. By searching for the center of the rotation track of the end of the first connecting portion 111, the rotation axis of the first connecting portion 111 around the rotation axis base 210 can be found, that is, the rotation axis of the movable plate 221 around the rotation axis base 210 can be found.

It can be understood that the line B is the connecting line between the end point a and the end point b. The vertical line C of the line B is a reference line passing through the midpoint of the line B, and the distance from any point on the vertical line C to the end point a and the end point b is equal. That is, the center of the rotation track of the end of the first connecting portion 111 is on the vertical line C. Since the rotation angle of the end of the first connecting portion 111 from the end point a to the end point b is the preset rotation angle α, the line from the center of the rotation track of the end of the first connecting portion 111 to the end point a and the first connecting portion The angle between the center of the rotation trajectory of the end of 111 and the end point b is equal to the preset rotation angle α. According to the trigonometric function relationship, it can be determined that there is a center point o on the vertical line C, and the line from the center point o to the end point a The angle between the center point o and the end point b of the circle is equal to the preset rotation angle α. The center point o is the center of the rotation track of the end of the first connecting part 111, and the line passing through the center point o and parallel to the length of the shaft base 210 can be regarded as the rotation axis of the first connecting part 111 rotating around the shaft base 210 , And then find out the rotation axis of the movable plate 221 around the rotation axis base 210.

By setting the rotation axis of the movable plate 221 on the rotation axis base 210 according to the found rotation axis position, the movable plate 221 is rotated around the rotation axis base 210, and the first connecting portion 111 can be driven to rotate around the rotation axis base 210, and The length of the bendable portion 120 connecting the two first connecting portions 111 in the unfolded state and the length in the bent state remain unchanged, thereby ensuring that the flexible display screen 100 is not damaged by being crushed or elongated.

In this embodiment, when the two movable plates 221 are unfolded, the inner edges of the two movable plates 221 are spliced with each other, and the two movable plates 221 jointly support the two first connecting portions 111 and the bendable portion 120. Specifically, the movable plate 221 has a first edge 2211 substantially aligned with the end of the first connecting portion 111 away from the bendable portion 120 and a second edge 2212 opposite to the first edge 2211. The distance from the first edge 2211 to the second edge 2212 is approximately equal to the length of the first connecting portion 111 plus half of the length of the bendable portion 120, so that after the two movable plates 221 are unfolded and aligned and spliced, the two movable plates The distance between the first edges 2211 of 221 is approximately equal to the width of the two first connecting portions 111 plus the width of the bendable portion 120, that is, the two movable plates 221 not only effectively support the first connecting portion 111, but also The curved portion 120 effectively supports.

Furthermore, the main body 220 is also provided with a middle frame 222 which is rotatably connected with the shaft base 210 and is relatively telescopic with the movable plate 221. The middle frame 222 is fixedly connected to the second connecting portion 112. When the first connecting portion 111 and the second connecting portion 112 are in the state of the initial development plane 1001, the movable plate 221 is expanded relative to the middle frame 222 to jointly support the flexible display screen 100; when the two connecting portions 110 are superimposed, The movable plate 221 shrinks relative to the middle frame 222 so that a receiving space for accommodating the two second connecting parts 112 and the bendable part 120 is formed between the two movable plates 221. Among them, the middle frame 222 can support the second connecting portion 112. The middle frame 222 is a support for connecting the second connecting portion 112 in the embodiment of the present application, and the support can rotate around the shaft base 210. Of course, other components connected to the middle frame 222 on the main body 220 and the middle frame 222 may also jointly constitute the support in the embodiment of the present application.

In this embodiment, the middle frame 222 fixes the second connecting portion 112, so that when the middle frame 222 receives an external driving force to rotate relative to the shaft base 210, the middle frame 222 can drive the second connecting portion 112 around the shaft base 210 Rotate. During the change of the electronic device 1000 from the unfolded state to the folded state, the middle frame 222 rotates around the shaft base 210, forcing the movable plate 221 to rotate around the shaft base 210, and the movable plate 221 pushes the first connecting portion 111 around the shaft base 210 210 rotation. The shape of the bendable portion 120 is not restricted by a limited structure, so that the bendable portion 120 can be bent freely, that is, the two ends of the bendable portion 120 can be moved from the end points a and a` to the end points b and b`, The bendable portion 120 is curved in a U-shaped curved surface.

During the change process of the electronic device 1000 from the folded state to the unfolded state, the two middle frames 222 can drive the two second connecting portions 112 to unfold each other. The movable plate 221 exerts a force on the first connecting portion 111, and the two first connecting portions 111 are respectively expanded to each other under the force of the connecting portion, and the two first connecting portions 111 respectively pull the two ends of the bendable portion 120 to expand to each other.

It can be understood that the middle frame 222 is fixedly connected to the side of the second connecting portion 112 away from the display surface 130 to keep the second connecting portion 112 in a flat state. The middle frame 222 may be bonded to the second connecting portion 112 by adhesive, or it may be connected to the edge of the second connecting portion 112 by snap connection, or it may be connected to the second connecting portion 112 by magnetic attraction. The rotation axis of the middle frame 222 is parallel to the rotation axis of the movable plate 221, the rotation axis of the middle frame 222 and the rotation axis of the movable plate 221 are mutually staggered, and the middle frame 222 and the movable plate 221 can be extended and retracted to each other, so that the middle frame 222 is movable The plate 221 and the shaft base 210 form a double crank linkage mechanism. The two middle frames 222 are used to drive the two second connecting portions 112 to be closed, and the movable plate 221 is contracted relative to the middle frame 222, and a substantially triangular receiving space is formed between the two movable plates 221. The accommodating space between the two movable plates 221 accommodates the two first connecting portions 111 and accommodates the bendable portion 120, so as to prevent the flexible display screen 100 from being crushed and damaged by the two main bodies 220.

Specifically, the rotation axis of the middle frame 222 is parallel to the rotation axis of the movable plate 221. Since the two second connecting portions 112 are mirror-symmetrical with respect to the geometric center section 1002 of the shaft base 210, in order to make the two second connecting portions 112 close tightly, the closing surfaces of the two second connecting portions 112 are set to be approximately the same as the shaft base. The geometric center sections 1002 of the seat 210 coincide. The geometric center section 1002 of the shaft base 210 is a section that passes through the geometric center axis of the shaft base 210 and is perpendicular to the initial development plane 1001. Understandably, the rotation axis or the rotation axis referred to in the present application may be a physical axis or a virtual axis, depending on actual requirements. Optionally, the rotation axis of the middle frame 222 may be the rotation axis of the second connecting portion 112, and the rotation axis of the movable plate 221 may be the rotation axis of the first connecting portion 111. Optionally, the rotation axis of the first connection portion 111 is farther away from the initial development plane 1001 or the display surface of the flexible display screen 100 than the rotation axis of the second connection portion 112. Optionally, the rotation axis of the first connection portion 111 is closer to the geometric center surface of the rotation axis base 210 or the bonding surface of the two second connection portions 112 than the rotation axis of the second connection portion 112. Optionally, the rotation axis of the second connection portion 112 is a physical axis, and the rotation axis of the first connection portion 111 is a virtual axis. Optionally, the radius of rotation of the first connecting portion 111 is smaller than the radius of rotation of the second connecting portion 112. Since the rotation axis of the first connecting portion 111 is offset from the rotation axis of the second connecting portion 112, when the middle frame 222 drives the movable plate 221 to rotate, the movable plate 221 needs to slide relative to the middle frame 222 for compensation. Optionally, when the middle frame 222 drives the movable panel 221 to fold, the movable panel 221 slides relative to the middle frame 222 toward the middle frame 222; when the middle frame 222 drives the movable panel 221 to unfold, the movable panel 221 is away from the middle frame 222 relative to the middle frame 222 slide. Optionally, when the middle frame 222 drives the movable panel 221 to be folded, the movable panel 221 also rotates relative to the middle frame 222 at the same time, so that the second connecting portion 112 can be relatively attached in the folded state. In addition to compensating for the misalignment of the rotation axis, sliding of the movable plate 221 relative to the middle frame 222 can also compensate for the difference in length caused by the rotation of the movable plate 221 relative to the middle frame 222 to prevent the flexible display screen 100 from being stretched or squeezed.

Optionally, when the flexible display screen 100 is folded, the bendable portion 120 is recessed downward or toward the shaft base 210 to form an arc shape. Optionally, the arc length formed by the depression of the bendable portion 120 is greater than π*R, where R is the bending radius of the bendable portion 120. Optionally, when the flexible display screen 100 is folded, the end of the first connecting portion 111 adjacent to the bendable portion 120 rotates around the rotation axis of the first connecting portion 111, wherein the first connecting portion 111 is adjacent to the end of the bendable portion 120 The position in the folded state is at the same height as the position in the flat state.

Optionally, the length of the bendable portion 120 when unfolded is set to L, and the radius of the arc formed by the bendable portion 120 after bending is R. To ensure that the length of the bendable portion 120 remains unchanged after bending, the bendable portion The linear distance D between the two opposite ends (b, b'in this embodiment) after 120 bending satisfies:

Optionally, based on assembly tolerances and manufacturing tolerances, D satisfies:

Optionally, D can also satisfy:

Further, referring to Figures 7, 8 and 9, the rotating shaft base 210 is provided with a plurality of rotating shaft components, and the plurality of rotating shaft components are arranged at intervals along the length of the rotating shaft base 210, and each rotating shaft component includes a bearing bracket and two The rotating wheel and the bearing bracket are provided with two staggered rotating shaft grooves, the two rotating wheels are respectively rotatably matched with the two rotating shaft grooves, and the two rotating wheels are respectively fixed to the two movable plates 221 to drive the movable plate 221 to be able to be opposed to the rotating shaft base. The seat 210 rotates.

In this embodiment, the rotating shaft base 210 is further provided with a rotating shaft housing 211 (see FIG. 4 ), and a plurality of rotating shaft components are fixed in the rotating shaft housing 211. The rotating shaft housing 211 protects the rotating shaft assembly. Specifically, the rotating shaft base 210 is provided with a first rotating shaft assembly 212 fixed to the rotating shaft housing 211 at a substantially middle position in the longitudinal direction. The first rotating shaft assembly 212 is provided with a first bearing bracket 2121 and two first rotating wheels 2122 rotatably connected to the first bearing bracket 2121. The first bearing bracket 2121 is provided with two rotating shaft grooves 2124 that are staggered. The two first rotating wheels 2122 respectively rotatably cooperate with the two rotating shaft grooves 2124. The two first rotating wheels 2122 are respectively fixed to the two movable plates 221 to The movable plate 221 can be driven to rotate relative to the shaft base 210.

More specifically, the first bearing bracket 2121 includes two opposite bearing blocks 2123. The two bearing blocks 2123 are arranged opposite to each other in the length direction of the rotating shaft housing 211. The two rotating shaft grooves 2124 are respectively arranged on the two bearing blocks 2123. The shaft groove 2124 is a semicircular groove, that is, the bottom surface of the shaft groove 2124 is a semicircular curved surface. The first rotating wheel 2122 is a semicircular roller. The semicircular outer side wall of the first rotating wheel 2122 is matched with the semicircular bottom surface of the rotating shaft groove 2124 so that the first rotating wheel 2122 can rotate in the rotating shaft groove. The central axis of the first rotating wheel 2122 forms the rotating shaft of the movable plate 221. The rotation axis of the first rotating wheel 2122 may be the rotation axis of the movable plate 221. The central axis of the first rotating wheel 2122 is a straight line passing through the center of the semicircular edge on the end surface of the first rotating wheel 2122. The two rotating shaft grooves 2124 are arranged alternately, so that the center axes of the two first rotating wheels 2122 are spaced apart, that is, there is a space between the rotating shafts of the two movable plates 221.

In this embodiment, one end of the first rotating wheel 2122 is provided with a guide flange 2125 protruding along the length of the rotating shaft base 210. The guide flange 2125 extends along a semicircular curve. The end of the shaft groove 2124 is provided with a guide groove 2126 that is matched with the guide flange 2125. The guide flange 2125 cooperates with the guide groove 2126 so that the first rotating wheel 2122 is not easily separated from the rotating shaft groove 2124. One end of the first rotating wheel 2122 away from the guide flange 2125 extends beyond the rotating shaft groove 2124. Of course, in other embodiments, a guide flange 2125 may be provided on the peripheral side wall of the first rotating wheel 2122.

In this embodiment, the movable plate 221 is fixed on the top end surface of the first rotating wheel 2122. When the two movable plates 221 are in the unfolded state, the top end surface of the first rotating wheel 2122 is flush with the top end surface of the bearing block 2123 to drive the two movable plates 221 to be flush. The movable plate 221 and the first rotating wheel 2122 may be connected by screws. The edge of the movable plate 221 away from the middle frame 222 is approximately aligned with the edge of the top end of the first rotating wheel 2122 away from the middle frame 222. When the two movable plates 221 rotate relative to the shaft base 210 to a close state, the first rotating wheel 2122 is partially rotated out of the shaft groove 2124, and the part of the first rotating wheel 2122 away from the middle frame 222 is turned into the bottom of the shaft groove 2124, and the movable plate The edge of the 221 away from the middle frame 222 is turned into the bottom of the shaft groove 2124, so that the movable plate 221 is partially contracted on the shaft base 210, thereby increasing the storage space between the two movable plates 221 and facilitating the accommodation between the two movable plates 221 The bendable portion 120. Of course, in other embodiments, the movable plate 221 and the first rotating wheel 2122 may also be bonded to each other.

Furthermore, each bearing bracket is provided with two avoidance grooves 2127 which are alternately arranged and communicated with the two rotating shaft grooves respectively. When the two first connecting portions 111 are in a superimposed state, each movable plate 221 is close to The edge portion of the shaft base 210 is accommodated in the shaft groove and the avoiding groove 2127 corresponding to one side.

In this embodiment, the two avoidance grooves 2127 are respectively provided on the two bearing blocks 2123. The clearance groove 2127 on each bearing block 2123 is arranged side by side with the shaft groove 2124, and the clearance groove 2127 is arranged opposite to the shaft groove 2124 on the other bearing block 2123, so that the movable plate 221 is away from the edge of the middle frame 222. The base 210 shrinks relative to the shaft. The shaft groove 2124 is provided with a limiting inner wall. When the edge portion of the movable plate 221 away from the middle frame 222 turns into the avoidance groove 2127, the inner wall of the limit stop resists the movable plate 221 to prevent the movable plates 221 from continuing to rotate with each other, and realize the rotation limit of the movable plate 221.

Further, the multiple rotating shaft assemblies further include a synchronous transmission assembly 213 connected to the two rotating wheels, and the synchronous transmission assembly 213 is used to drive the two rotating wheels to rotate relative to the bearing block 2123 synchronously.

In this embodiment, the synchronous transmission assembly 213 is disposed between the two bearing blocks 2123 of the first rotating shaft assembly 212. One end of the first rotating wheel 2122 extends out of the rotating shaft groove 2124 and protrudes relative to the side wall of the bearing block 2123. The synchronous transmission assembly 213 is connected to one end of the two first rotating wheels 2122 protruding from the rotating shaft groove 2124. Specifically, the first rotating shaft assembly 212 further includes a transmission block 2128, and the transmission block 2128 is fixed between the two bearing blocks 2123. The synchronous transmission assembly 213 includes two first gears 2131 respectively fixedly connected to the two first rotating wheels 2122, two racks 2132 respectively engaged with the two first gears 2131 and slidably connected to the first bearing bracket 2121, and two racks 2132 and two The two racks 2132 are meshed and rotatably connected to the second gear 2133 of the bearing bracket. The two first gears 2131 are respectively fixed to one end of the two first rotating wheels 2122 protruding from the rotating shaft groove 2124. The two racks 2132 are slidably connected to the transmission block 2128. The gear 2133 is rotatably connected to the transmission block 2128. When the movable plate 221 drives the first rotating wheel 2122 to rotate, the first gear 2131 of the first rotating wheel 2122 drives the rack 2132 to slide, and the sliding of the rack 2132 drives the second gear 2133 to rotate, and the second gear 2122 rotates to drive another The rack 2132 on the side slides in the opposite direction, and drives the first gear 2131 and the first rotating wheel 2122 on the other side to rotate in the opposite direction, thereby realizing synchronous transmission. Of course, in other embodiments, the synchronous transmission assembly 213 may also be provided with a linkage mechanism for synchronous transmission.

Further, referring to Figures 7, 9 and 10, at least one rotating shaft assembly further includes a damping transmission assembly 214, the damping transmission assembly 214 is connected to the two rotating wheels, and the damping transmission assembly 214 is used to provide the two rotating wheels with respect to the rotating shaft base. The damping force of the rotation of the seat 210.

In this embodiment, the shaft base 210 is further provided with two second shaft assemblies 215 respectively located at both ends of the shaft housing 211 in the longitudinal direction. Each second rotating shaft assembly 215 is provided with a second bearing bracket 2151 and two second rotating wheels 2152 rotatably connected to the second bearing bracket 2151. The second bearing bracket 2151 is fixed to the shaft housing 211. The two second rotating wheels 2152 are respectively fixedly connected to the two movable plates 221 so that the two movable plates 221 can rotate around the rotating shaft base 210. The structure of the second bearing bracket 2151 is substantially the same as that of the first bearing bracket 2121. The difference is that the two bearing blocks 2123 of the second bearing bracket 2151 are connected side by side and are integrally arranged. The specific structure of the second bearing bracket 2151 will not be repeated. The second rotating wheel 2152 is substantially the same as the first rotating wheel 2122, and the second rotating wheel 2152 is arranged coaxially with the first rotating wheel 2122. The specific structure of the second rotating wheel 2152 will not be repeated here.

Specifically, each second rotating shaft assembly 215 includes a damping transmission assembly 214. The damping transmission component 214 is connected to the two second rotating wheels 2152, and the damping transmission component 214 is used to provide a damping force for the rotation of the two second rotating wheels 2152 relative to the rotating shaft base 210. The damping transmission assembly 214 includes two damping rotating shafts 2141 and a damping sheet 2142 sleeved on the two damping rotating shafts 2141. The two damping shafts 2141 include a first damping shaft 2143 and a second damping shaft 2144. The first damping shaft 2143 is fixedly connected to the second bearing bracket 2151. The second damping shaft 2144 is rotatably connected to the second bearing bracket 2151, and the second damping shaft 2144 is rotatable relative to the second bearing bracket 2151. The first damping shaft 2143 and the second damping shaft 2144 are arranged in parallel. The ends of the two damping rotating shafts 2141 are sheathed with damping fins 2142. The end of the second damping rotating shaft 2144 is connected to the second rotating wheel 2152 via a gear transmission structure, so that the second rotating wheel 2152 drives the second damping rotating shaft 2141 to rotate synchronously. Optionally, an annular third gear 2145 is formed on the outer peripheral surface of the second damping shaft 2144, and the second rotating wheel 2152 forms a convex fourth gear 2153 corresponding to the position of the annular third gear 2145 so as to be compatible with the annular third gear 2145. Gear 2145 meshes. When the second rotating wheel 2152 is driven by the movable plate 221 to rotate, the convex fourth gear 2153 rotates to drive the ring-shaped third gear 2145 to rotate, thereby driving the second damping shaft 2144 to rotate. Due to the action of the damping plate, the rotation of the first damping shaft 2143 and the second damping shaft 2144 in the damping plate generates rotational damping. The damping sheet 2142 is provided with two through holes, and the two through holes are respectively in interference fit with one end of the two damping shafts 2141. A plurality of damping fins 2142 are sheathed at the ends of the two damping rotating shafts 2141, and the plurality of damping fins 2142 are stacked to increase the rotational damping force of the second damping shaft 2144. The damping transmission assembly 214 is connected to the two second rotating wheels 2152, so that the movable plate 221 rotates relative to the rotating shaft base 210 with damping force. When the external driving force of the movable plate 221 to rotate is cancelled, the movable plate 221 can be kept fixed relative to the shaft base 210 by the rotation damping force of the second rotating wheel 2152, so as to stabilize the positions of the movable plate 221 and the middle frame 222, and then The folded form of the flexible display screen 100 is stabilized.

Further, referring to FIGS. 7, 11 and 12, the main body 220 is also provided with a middle frame driving member 223 that is rotatably connected to the end of the shaft base 210, and the middle frame driving member 223 drives the middle frame 222 to rotate around the shaft base 210. The movable plate 221 is slidably connected to the middle frame driving member 223 away from the shaft base 210 to extend and retract relative to the middle frame 222. Among them, the middle frame driving member 223 and the middle frame 222 jointly constitute the supporting member of the embodiment of the present application.

In this embodiment, the middle frame driver 223 is rotatably connected to both ends of the shaft housing 211 in the longitudinal direction. Specifically, both ends of the shaft housing 211 in the longitudinal direction are provided with end baffles 2111. The end baffle 2111 is provided with two driving shafts 2112 arranged side by side and spaced apart. The two middle frame driving members 223 are rotatably connected to the two driving shafts 2112 respectively. Optionally, the driving shaft 2112 forms a rotating shaft of the middle frame 222. More specifically, the middle frame driving member 223 is provided with a rotating connecting plate 2231 arranged in parallel with the end baffle 2111 and a fixed connecting plate 2232 fixed to the rotating connecting plate 2231. The fixed connecting plate 2232 is substantially perpendicular to the rotating connecting plate 2231 and is connected to the middle frame 222. The rotating connecting plate 2231 is also provided with a movable chute 2233. An edge end of the movable plate 221 away from the shaft base 210 is provided with a movable guide post 2213 slidably engaged with the movable chute 2233 to realize that the movable plate 221 can extend and retract relative to the middle frame 222. That is, the movable plate 221 is rotatably connected and slidably connected with the middle frame driver 223 through the movable guide post 2213. When the flexible display screen 100 is bent, the movable guide post 2213 slides relative to the middle frame driver 223 toward the middle frame driver 223. Wherein, the movable guide post 2213 is the rotation axis of the movable part rotating around the support in the embodiment of the application, that is, the movable part is rotatably connected to the support through the movable guide post 2213. When the flexible display screen is bent, the movable guide post can be oriented relative to the support. The support slides. Of course, in other embodiments, a driving shaft 2112 may be provided on the middle frame driving member 223, and the end of the shaft housing 211 is rotatably connected to the driving shaft 2112 of the middle frame driving member 223.

Further, the main body 220 is further provided with a slider 224 fixed to the middle frame 222, and the middle frame driver 223 is provided with a guide slider 2234 slidingly fitted with the slider 224. The slider 224 can drive the middle frame 222 relative to the middle frame driver. 223 slide. In this embodiment, the guide slider 2234 is fixed on the fixed connecting plate 2232 and extends along the length direction substantially perpendicular to the shaft base 210. The sliding block 224 is sleeved on the guide sliding block 2234 and can slide relative to the rotation shaft base 210 in a direction substantially perpendicular to the length direction of the rotation shaft base 210. The two second connecting portions 112 can be opened to each other in a direction away from the shaft base 210, which can make the flexible display screen 100 in a tight state, so that the first connecting portion 111 and the second connecting portion 112 of the flexible display screen 100 are more smooth.

Further, the main body 220 is further provided with an elastic member 225 elastically connected to the middle frame driving member 223 and the slider 224. The elastic member 225 is used to provide the elastic restoring force of the slider 224 away from the middle frame driving member 223. The two middle frames 222 Under the elastic force of the elastic member 225, the two second connecting portions 112 are provided with a tightening force away from each other. Utilizing the elastic force of the elastic member 225, the flexible display screen 100 can be maintained in a tight state, and the user experience can be improved. The elastic member 225 may be a rectangular spring. The fixed connecting plate 2232 is provided with an elastic guide post, and the elastic member 225 is sleeved on the elastic guide post and abuts against the fixed connecting plate 2232 and the sliding block 224 respectively. Of course, the elastic member 225 may also be a torsion spring. Optionally, the elastic member 225 is pre-compressed between the middle frame driving member 223 and the slider 224.

Further, the slider 224 is provided with a first limiting portion, and the guide sliding block 2234 is provided with a second limiting portion slidingly engaged with the first limiting portion. The first limiting portion and the second limiting portion are limited in position. It cooperates to limit the sliding distance of the slider 224 relative to the middle frame driver 223. The first limiting part may be a limiting boss, and the second limiting part may be a limiting groove matched with the limiting boss. The first limiting portion and the second limiting portion are slidably engaged, and the first limiting portion slides to the two closed ends of the second limiting portion to realize the sliding limiting of the slider 224 and the guide slider 2234. The sliding block 224 is restricted by the first restricting portion and the second restricting portion, so that the sliding block 224 can be prevented from being separated from the guide sliding block 2234. Optionally, when the flexible display screen 100 is bent, the distance between the slider 224 and the middle frame driving member 223 remains unchanged, that is, the two will not slide relative to each other, and the compression amount of the elastic member 225 remains unchanged at this time. Optionally, when the flexible display screen 100 is bent, the distance between the slider 224 and the middle frame driving member 223 becomes smaller, that is, the two slide relative to each other, and the compression amount of the elastic member 225 increases at this time.

Further, the middle frame 222 includes a middle plate 2223 attached to the second connecting portion 112. When the movable plate 221 and the middle frame 222 are unfolded, the movable plate 221 is flush with the middle plate 2223; when the movable plate 221 and the middle frame 222 are contracted At this time, the movable plate 221 and the middle plate 2223 are arranged at an angle. The middle plate 2223 can support the second connecting portion 112. The middle plate 2223 can be bonded to the back of the second connecting portion 112. The middle frame 222 also includes a frame 2224 fixed to the side of the middle plate 2223, and a cover plate 2225 fixedly connected to the frame 2224 and opposite to the middle plate 2223. A receiving cavity is formed between the frame, the cover plate 2225 and the middle plate 2223; When the middle frame 222 is unfolded, a part of the shaft base 210 is accommodated in one of the accommodating cavities, and the other part is accommodated in the accommodating cavity of the other middle frame 222. After the two middle frames 222 are unfolded, the two middle frames 222 are joined to each other, and jointly receive the shaft base 210 so that the shaft base 210 is hidden in the two middle frames 222. After the two middle frames 222 are folded, the shaft base 210 is partially exposed outside the two accommodating cavities. The main body 220 is also provided with functional devices fixed in the receiving cavity. Functional devices can be motherboards, batteries, memory, antennas, speakers, cameras, and other devices.

In the electronic device 1000 provided by the present invention, the connecting portion 110 of the flexible display screen 100 is driven by the two main bodies 220 of the foldable device 200 to turn around the rotating shaft base 210. In the process of turning and closing, the two ends of the bendable portion 120 can face close to the rotating shaft. The geometric centerline direction of the base 210 moves so that the length of the bendable portion 120 in the flat state is equal to the length in the bent state, which can ensure that the length of the flexible display screen 100 in the unfolded state is equal to the length in the folded state, which simplifies the electronic device 1000 structure, and ensure the safety of the flexible display screen 100.

The above are the implementation modes of the embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the embodiments of the present invention, several improvements and modifications can be made, and these improvements and modifications are also It is regarded as the protection scope of the present invention.

Claims

An electronic device, characterized in that the electronic device comprises a flexible part and a movable part, the flexible part comprises a bendable part and a first connecting part close to the bendable part, and the movable part is connected to the first connecting part When the flexible part is in a bent state, the movable part can be separated from the bendable part, and when the flexible part is in an unfolded state, the movable part can abut against the bendable part.
The electronic device according to claim 1, wherein when the flexible member is in a bent state, the length of the arc formed by the bendable part is greater than π×R, wherein R is the length of the bendable part in the bent state. Bending radius.
The electronic device according to claim 1, wherein when the flexible member is in a bent state, the bendable portion is in a free state.
The electronic device according to claim 1, wherein when the flexible member is in a bent state, the end of the bendable portion adjacent to the first connecting portion and the end of the first connecting portion adjacent to the bendable portion Tangent.
The electronic device according to claim 1, wherein when the flexible member is bent, the abutment between the first connecting portion and the bendable portion moves from a position away from the curved center surface of the flexible member to A position close to the curved center surface of the flexible member.
The electronic device according to claim 1, wherein the height of the abutment between the first connecting portion and the bendable portion when the flexible member is in the bent state is different from the height when the flexible member is in the unfolded state. When the height is the same.
7. The electronic device according to any one of claims 1 to 6, wherein when the flexible member is bent, the first connecting portion rotates around a first rotation axis.
8. The electronic device according to claim 7, wherein the abutment between the first connecting portion and the bendable portion is in a first position when the flexible member is in a bent state, and the first connecting portion The abutment with the bendable portion is in the second position when the flexible member is in the unfolded state, and the first rotation axis is located on the vertical line connecting the first position and the second position.
The electronic device according to claim 7, wherein the flexible member further comprises a second connecting portion close to the first connecting portion, and the first connecting portion is located between the second connecting portion and the Between the bends.
9. The electronic device according to claim 9, wherein when the flexible member is bent, the bending angles of the second connecting portion and the first connecting portion are different.
9. The electronic device according to claim 9, wherein when the flexible member is bent, a bending angle of the second connecting portion is smaller than a bending angle of the first connecting portion.
9. The electronic device according to claim 9, wherein when the flexible screen is bent, the second connecting portion is bent relative to the first connecting portion.
9. The electronic device according to claim 9, wherein the number of the first connecting portion and the second connecting portion includes two, and when the flexible member is in a bent state, the two second connecting portions The parts are parallel to each other, and the two first connecting parts are relatively inclined.
9. The electronic device according to claim 9, wherein when the flexible member is bent, the second connecting portion rotates around a second rotation axis, and the second rotation axis is staggered from the first rotation axis.
14. The electronic device according to claim 14, wherein the electronic device further comprises a supporting member connected to the second connecting portion, and the supporting member is rotatable about the second rotation axis.
15. The electronic device according to claim 15, wherein when the flexible member is bent, the support member is rotatable relative to the movable member.
15. The electronic device according to claim 15, wherein when the flexible member is bent, the movable member is slidable relative to the support member.
15. The electronic device according to claim 15, wherein when the flexible member is bent, the distance between the movable member and the support member is reduced.
The electronic device according to claim 15, wherein the movable part is rotatably connected to the support part through a third rotation shaft, and when the flexible part is bent, the third rotation shaft faces the support part. The support slides.
15. The electronic device according to claim 15, wherein the supporting member is provided with a slider, and the movable member is connected with a guide sliding seat that is slidably matched with the slider.
The electronic device according to claim 15, wherein an elastic member is connected between the slider and the guide sliding seat, and the elastic member provides the support member to drive the second connecting portion away from the The tension of the bendable part.
The electronic device according to claim 14, wherein the first rotation axis is a virtual axis, and the second rotation axis is a physical axis.
The electronic device according to any one of claims 1 to 6, wherein the electronic device further comprises a shaft base, the movable part is rotatably connected to the shaft base, and the movable part can drive the The first connecting part rotates around the rotating shaft base.
The electronic device according to claim 23, wherein the rotating shaft base comprises a bearing bracket and a rotating wheel rotatably connected to the bearing bracket, and the movable part is fixedly connected to the rotating wheel, and is opposite to the rotating wheel. The bearing bracket rotates.
The electronic device according to claim 24, wherein the rotating shaft base further comprises a damping transmission assembly connected to the bearing bracket and the rotating wheel, and the damping transmission assembly is used to provide the rotating wheel relative to each other. Rotation damping of the rotation of the bearing bracket.
The electronic device according to any one of claims 1 to 6, wherein the length of the bendable portion when unfolded is L, the arc radius formed by the bendable portion after bending is R, and the The linear distance D between the two opposite ends of the bendable part after bending satisfies:
28. The electronic device of claim 26, wherein the linear distance D between the two opposite ends of the bendable portion after bending satisfies: