WO2023109549A1 - Electronic device - Google Patents

Abstract

Provided in embodiments of the present application is an electronic device with a foldable screen, relating to the technical field of electronic products. The electronic device can keep a bent state of a flexible circuit board located between two housings substantially constant when a distance between the two housings decreases. The electronic device comprises a flexible circuit board, and a first housing and a second housing that can be folded, wherein the first housing comprises a first surface and a second surface that are opposite each other; the first housing is provided with a first mounting surface, the second housing is provided with a second mounting surface, and the first mounting surface and the second mounting surface are both inclined surfaces that are obliquely arranged with respect to the first surface; a portion of the flexible circuit board is fixed on the first mounting surface to form a first fixing portion; another portion of the flexible circuit board is fixed on the second mounting surface to form a second fixing portion; and a portion of the flexible circuit board between the first fixing portion and the second fixing portion is bent. The electronic device provided in the present application meets the miniaturized design requirements.

Description

an electronic device

This application claims the priority of a Chinese patent application with application number 202111517812.X and title of invention "An electronic device" filed with the State Intellectual Property Office on December 13, 2021, the entire contents of which are incorporated herein by reference .

technical field

The embodiments of the present application relate to the technical field of electronic products, and in particular, to an electronic device with a foldable screen.

Background technique

At present, foldable screens are widely used in mobile terminals, such as foldable mobile phones, foldable tablets, etc. In such mobile terminals, there are mainly two housings, and the two housings are connected by a hinge structure to realize the foldable screen. Flatten and close.

For example, FIG. 1 shows a partial structural diagram of a mobile terminal. In FIG. 1, the first housing 011 is rotatably connected to the second housing 012 through the rotating shaft structure 02, and the folding screen 07 is arranged on the first housing 011, One side of the rotating shaft structure 02 and the second housing 012, when the first housing 011 and the second housing 012 rotate relative or opposite to each other under the action of the rotating shaft structure 02, can drive the folding of the folding screen 07, for example, In FIG. 1 , when the first housing 011 is rotated in the direction P1 and the second housing 012 is rotated in the direction P2, the folding screen 07 can be switched from the flattened state to the closed state.

Generally, the first housing 011 and the second housing 012 are respectively provided with electronic devices with different functions. For example, in FIG. First, the battery 04 is set on the second housing 012, and the printed circuit board 03 needs to be electrically connected to the battery 04. At present, a flexible printed circuit (FPC) 05 is often used as the electrical connection structure to realize the printed circuit board 03 Interconnection with battery 04.

During the folding process of the folding screen 07, the flexible circuit board 05 needs to be repeatedly bent in conjunction with the shaft structure 02. Furthermore, the requirements for the bendable life of the flexible circuit board 05 are relatively high, and in order to increase the service life of the flexible circuit board 05, There are also requirements for the shape of the flexible circuit board 05 during bending, which is controllable.

In the prior art, as shown in FIG. 1, the two ends of the flexible circuit board 05 close to the first housing 011 and the second housing 012 are respectively fixed on the corresponding housings through reinforcing plates 06. In addition In addition, another reinforcing plate 06 is provided on the bending area of the flexible circuit board 05 between the first shell 011 and the second shell 012 . That is to say, during the folding process of the folding screen 07, the shape of the flexible circuit board 05 can be maintained through the three reinforcing plates 06, so that the bending tendency of the flexible circuit board 05 is controllable.

With the reduction of the size of the mobile terminal, it is necessary to shorten the size of the L direction in FIG. The dimensions in the L direction and the shape of the bending are basically kept unchanged, so how to maintain the bending shape of the bending area of the flexible circuit board 05 under the condition that the size of the L direction in Fig. 1 is continuously reduced. Change is a problem that needs to be solved urgently.

Contents of the invention

The present application provides an electronic device. The main purpose is to provide an electronic device that can maintain the bending shape of the bending area of the flexible circuit board between the two housings while the distance between the two housings is reduced.

In order to achieve the above object, the embodiments of the present application adopt the following technical solutions:

The present application provides an electronic device, which is a foldable electronic device with a flexible screen, for example, a foldable screen mobile phone, a foldable screen tablet computer, and the like.

The electronic device includes a first housing and a second housing, a rotating shaft structure and a flexible circuit board, the first housing and the second housing are arranged on opposite sides of the rotating shaft structure, and the first housing and the second housing pass through the rotating shaft The structure can be rotated toward each other, so that the electronic device is switched from a flattened state to a closed state. The first housing includes opposite first and second faces, and one of the first and second faces is used to carry the flexible screen , so that under the action of the rotating shaft structure, the electronic device can be switched between the closed state and the flattened state. In addition, the first mounting surface is formed at one end of the first housing close to the rotating shaft structure, and the second mounting surface is formed at the end of the second housing close to the rotating shaft structure, both of the first mounting surface and the second mounting surface are opposite to the first mounting surface. An inclined surface with an inclined surface; a part of the flexible circuit board is fixed on the first mounting surface to form a first fixing part; another part of the flexible circuit board is fixed on the second mounting surface to form a second fixing part; the flexible circuit board A portion of the plate located between the first fixing portion and the second fixing portion is bent to form a bent portion, and the bent portion can be bent when the first casing and the second casing rotate toward each other.

In the electronic equipment provided in this application, since the first fixing part of the flexible circuit board can be electrically connected to the electronic device on the first housing, the second fixing part can be electrically connected to the electronic device on the second housing, thus, The electrical connection between the electronic device on the first housing and the electronic device on the second housing can be realized. Moreover, when the first housing and the second housing are driven by the rotating shaft structure to rotate in opposite directions, the bending portion of the flexible circuit board located between the first housing and the second housing will also be bent in accordance with the rotating shaft structure, So that the electronic device on the first housing and the electronic device on the second housing are in a stable electrical connection relationship.

In addition, in the first housing and the second housing provided in this application, there are respectively a first mounting surface for fixing the first fixing portion of the flexible circuit board, and a second fixing surface for fixing the flexible circuit board. part of the second mounting surface. That is to say, the parts of the flexible circuit board located at the two ends of the bending part are fixed on the first housing and the second housing, so that when the first housing and the second housing are rotating, the flexible circuit board can be controlled The bending shape of the bending part makes the bending tendency of the flexible circuit board controllable instead of arbitrary bending.

In addition, both the first installation surface for fixing the first fixing part and the second installation surface for fixing the second fixing part are inclined surfaces. It can be understood that the inclined surfaces here are used for Compared with the inclined surface of the surface carrying the flexible screen, the two mounting surfaces are set to be parallel to the surface of the first housing for carrying the flexible screen, and the bending shape of the bending part is basically unchanged. Next, the space occupied between the first housing and the second housing can be reduced, and it can also be explained that when the distance between the first housing and the second housing becomes smaller, by placing the first mounting surface The inclined arrangement with the second installation surface can keep the length of the bending part of the flexible circuit board basically unchanged, and the bending shape is also basically unchanged, so as to adapt to the miniaturization design of electronic equipment.

In a possible implementation manner, the electronic device further includes: a first reinforcement board and a second reinforcement board; the first reinforcement board is fixed on the first installation surface, and the first fixing part is fixed on the first reinforcement board on; the second reinforcing plate is fixed on the second mounting surface, and the second fixing part is fixed on the second reinforcing plate.

By fixing the first fixing portion on the first reinforcing plate, the first reinforcing plate is fixed on the first mounting surface, and by fixing the second fixing portion on the second reinforcing plate, the second reinforcing plate Fixing on the second mounting surface can improve the morphological rigidity of the entire flexible circuit board, improve the deformation resistance, and also enhance the connection strength between the flexible circuit board and the first casing and the second casing.

In a possible implementation manner, when the first housing and the second housing rotate toward each other, the first surface is closer to the second housing relative to the second surface; along the direction from the second surface to the first surface, the first installation The surface is inclined from the first housing toward the direction of the rotating shaft structure, and the second installation surface is inclined from the second housing toward the direction of approaching the rotating shaft structure.

This embodiment can be understood in this way, when electronic devices are provided on the second surface of the first housing, and electronic devices are also provided on the surface of the second housing on the same side as the second surface of the first housing, then Along the direction from the second surface to the first surface, the first mounting surface is inclined from the first casing toward the direction of the rotating shaft structure, and the second mounting surface is inclined from the second casing toward the direction of approaching the rotating shaft structure. In this way, the path from the flexible circuit board to the electronic device on the first casing can be shortened, and the electrical connection between the electronic device on the first casing and the flexible circuit board can be facilitated. Similarly, the path from the flexible circuit board to the electronic device on the second casing can also be shortened to facilitate the electrical connection between the electronic device on the second casing and the flexible circuit board.

In a possible implementation manner, when the first housing and the second housing rotate toward each other, the first surface is closer to the second housing relative to the second surface; along the direction from the second surface to the first surface, the first installation The surface is inclined from the first housing toward the direction close to the rotating shaft structure, and the second mounting surface is inclined from the second housing toward the direction close to the rotating shaft structure; also, when the electronic device is in a flat state, the bending part is close to the first The part of the fixing part and the part of the bending part close to the second fixing part protrude toward the first surface.

In this way, the first fixing part and the second fixing part can smoothly transition to the bending part, and the form rigidity and deformation resistance of the flexible circuit board can be enhanced.

In a possible implementation manner, the electronic device further includes a circuit board arranged on the first casing, the first electronic device is arranged on the circuit board, and the second electronic device is arranged on the second casing; the flexible circuit board A part is connected to the first fixing part, and extends to the first housing, and is electrically connected to the first electronic device; the other part of the flexible circuit board is connected to the second fixing part, and extends to the second housing, and is electrically connected to the first electronic device; The second electronic device is electrically connected.

That is to say, the flexible circuit board not only includes the first fixing part fixed on the first housing, the second fixing part fixed on the second housing, and the fold between the first housing and the second housing. In addition, the curved part also includes a first extension part laid on the first shell, and a second extension part laid on the second shell, so that, between the first shell and the second When the casing rotates, the first extension part will rotate together with the first casing, and the second extension part will also rotate together with the second casing, and the first fixing part and the second fixing part are used to define the bending part bending trend.

In a possible implementation manner, part of the bending portion is fixed on the rotating shaft structure.

In a possible implementation manner, when the electronic device is in the flattened state, the bending portion includes a first protruding portion and a second protruding portion protruding toward the second surface, and a part and the second protruding part, and a connecting part connecting the first protruding part and the second protruding part and protruding toward the direction of the first surface; the connecting part is fixed on the rotating shaft structure.

Since in this embodiment, the adjacent first protruding portion and the second protruding portion are included, the connecting portion between the first protruding portion and the second protruding portion can be fixed on the rotating shaft structure . Then, the part of the flexible circuit board located between the first fixing part and the connecting part can control the bending trend by the fixed first fixing part and the fixed connecting part, and the part of the flexible circuit board located between the second fixing part and the connecting part The portion between the connecting parts can be bent by the fixed second fixing part and the fixed connecting part, and furthermore, the bending trend of the entire flexible circuit board can be controlled.

In a possible implementation manner, the electronic device further includes a third reinforcing plate, the third reinforcing plate is parallel to the first surface; the third reinforcing plate is fixed on the rotating shaft structure, and the connecting part is fixed on the third reinforcing plate superior.

That is to say, the third reinforcing plate is used to fix the connection part of the flexible circuit board on the rotating shaft structure, so as to enhance the connection strength between the connecting part and the rotating shaft structure, and further improve the morphological rigidity of the entire flexible circuit board.

In a possible implementation manner, when the electronic device is in the flattened state, the bending portion includes a protruding portion protruding toward the second surface.

In a possible implementation manner, the electronic device further includes a waterproof structure, the flexible circuit board includes a third fixing portion that is connected to the first fixing portion and is away from the bending portion, and there is a gap between the third fixing portion and the first housing. The gaps are filled with a waterproof structure.

That is to say, the third fixing part of the flexible circuit board close to the first fixing part is connected to the first housing through a waterproof structure, so as to prevent water between the first housing and the second housing from entering the first housing, Influence the performance of the electronic device in the first housing.

Also, since the first mounting surface for fixing the first fixing part is arranged on an inclined plane, in this way, compared with a horizontal plane, more space can be avoided for the waterproof structure, and the size of the first waterproof structure can be increased, so that Improve the waterproof performance of the electronic equipment.

In a possible implementation manner, the first housing is formed with a first through hole passing through the first surface and the second surface; the first mounting surface is formed on a side wall of the first through hole away from the second housing, A third installation surface connected to the first installation surface is also formed on the side wall surface of the first through hole forming the first installation surface, and the third installation surface is parallel to the first surface; a waterproof structure is formed on the third installation surface, and the third installation surface is formed with a waterproof structure. The three fixing parts are fixed on the waterproof structure; the part of the flexible circuit board passes through the first installation surface and the third installation surface of the first through hole in turn from the first surface to the second surface.

That is to say, the first through hole for passing through the bending portion can be opened on the first casing, so as to make full use of the first casing, so that the structural components of the entire electronic device are more compact and miniaturized.

In a possible implementation manner, the electronic device further includes a pressing plate structure; the pressing plate structure is fixed on the first housing, and partially extends into the first through hole, and presses the first fixing portion on the first mounting surface, and Press the third fixing part against the third installation surface.

That is, the pressing force of the pressing plate structure on the first fixing part is used to increase the connection strength between the first fixing part and the first housing, and further improve the controllability of the bending trend of the bending part. And the pressing force of the pressing plate structure on the third fixing part is used to improve the waterproof effect of the waterproof structure.

In a possible implementation manner, the rotating shaft structure includes opposite fifth and sixth faces, and the fifth and first faces are located on the same side; the rotating shaft structure is formed with a second through hole passing through the fifth and sixth faces ; At least part of the bent portion passes through the second through hole from the fifth surface to the sixth surface.

The above-mentioned embodiment introduces that the first through hole can be opened on the first housing, so that the part of the bending part close to the first fixing part can pass through. In this embodiment, the second through hole is opened on the rotating shaft structure. The portion of the bent portion opposite to the shaft structure passes through, and the flexible circuit board formed in this way can be called a cable structure through the shaft, so as to make full use of the space occupied by the shaft structure.

In a possible implementation manner, the inclination angle of the first installation surface relative to the first surface is 15° to 75°.

In a possible implementation manner, the electronic device further includes a flexible screen; the flexible screen is arranged on the same side of the first housing, the second housing and the shaft structure; and part of the flexible screen is fixed on the first housing and the second housing. on the shell.

In this way, when the first housing and the second housing are relatively or relatively rotated, the flexible screen can be driven to switch between the closed state and the flattened state.

Description of drawings

Fig. 1 is a partial structural diagram of an electronic device in the prior art;

FIG. 2 is an exploded view of an electronic device provided in an embodiment of the present application;

FIG. 3 is an exploded view of an electronic device provided in an embodiment of the present application;

FIG. 4 is an exploded view of an electronic device provided in an embodiment of the present application;

FIG. 5 is a simplified diagram of a partial structure of an electronic device provided by an embodiment of the present application;

Figure 6 is an exploded view of Figure 5;

FIG. 7 is a simplified diagram of a partial structure of an electronic device provided in an embodiment of the present application;

FIG. 8 is a simplified diagram of an electronic device provided in an embodiment of the present application when it is closed;

FIG. 9 is a simplified diagram of a partial structure of an electronic device provided in an embodiment of the present application;

Fig. 10a is a simplified diagram of a partial structure of an electronic device in the prior art;

Fig. 10b is a simplified diagram of a partial structure of an electronic device provided by an embodiment of the present application;

FIG. 11 is a simplified diagram of a partial structure of an electronic device provided by an embodiment of the present application;

FIG. 12 is an exploded view of an electronic device provided in the embodiment of the present application;

FIG. 13 is a structural diagram of a flexible circuit board provided in an embodiment of the present application;

FIG. 14 is a partial structural diagram of an electronic device provided by an embodiment of the present application;

Fig. 15 is a structural diagram cut along B-B of Fig. 14;

Figure 16 is an enlarged view at C of Figure 15;

Fig. 17 is a structural diagram of a reinforcing plate provided by the embodiment of the present application;

FIG. 18 is a partial structural diagram of an electronic device provided by an embodiment of the present application;

Fig. 19 is a structural view cut along line C-C of Fig. 18 .

Reference signs:

100 - electronic equipment;

011-the first housing; 011a-the first through hole;

012-second housing;

02-shaft structure; 02a-second through hole;

03-circuit board;

04 - battery;

05-flexible circuit board;

06-reinforcement plate; 06a-first end ear; 06b-second end ear;

061-the first reinforcement board; 062-the second reinforcement board; 063-the third reinforcement board;

07-flexible screen;

08-capping;

09-adhesive glue layer;

10-platen structure;

11-waterproof structure; 111-first waterproof layer; 112-second waterproof layer.

Detailed ways

An embodiment of the present application provides a foldable electronic device. Foldable electronic devices may include various electronic devices that have a flexible screen and can change the unfolded or folded configuration of the flexible screen and itself. Under different usage requirements, the foldable electronic device can be unfolded to a flat state, can also be folded to a closed state, and can also be in an intermediate state between the flat state and the closed state. That is to say, a foldable electronic device has at least two states, namely, a flattened state and a closed state. In some cases, it may further include a third state, that is, an intermediate state between the flattened state and the closed state. It can be understood that the intermediate state is not the only state, and may be any one or more states between the flattened state and the closed state of the electronic device.

Exemplarily, foldable electronic devices may be, but not limited to, mobile phones, tablet computers, notebook computers, e-book readers, cameras, wearable devices, home electronic devices, and the like. For ease of understanding, in various embodiments of the present application, a foldable electronic device is described by taking a mobile phone as an example.

Referring to FIG. 2, FIG. 2 is an exploded view of a foldable electronic device 100 provided by an embodiment of the present application. As shown in FIG. Two casings 012 and a flexible screen 07.

Wherein, the first housing 011 and the second housing 012 are arranged on opposite sides of the rotating shaft structure 02, and are respectively connected with the rotating shaft structure 02, and the rotating shaft structure 02 can move so that the first housing 011 and the second housing 012 Relatively folded or relatively unfolded. The first casing 011 here may also be called a first middle frame, and similarly, the second casing 012 here may also be called a second middle frame.

Continuing to refer to FIG. 2, the flexible screen 07 can continuously cover the first housing 011 and the second housing 012 of the foldable electronic device 100, and the same side of the hinge structure 02, and the flexible screen 07 can be fixed On the first housing 011 , another part can be fixed on the second housing 012 . In this way, when the first housing 011 and the second housing 012 move relative or opposite to each other, the flexible screen 07 can be driven to be folded or flattened.

The flexible screen 07 can be used to display information and provide an interactive interface for the user. In various embodiments of the present application, the flexible display screen 07 may include, but not limited to, an organic light-emitting diode (OLED) display screen, an active Matrix organic light-emitting diode or active-matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED) display, mini organic light-emitting diode (mini organic light-emitting diode) display, micro light-emitting diode (micro organic light -emitting diode) display, micro organic light-emitting diode (micro organic light-emitting diode) display, quantum dot light emitting diodes (quantum dot light emitting diodes, QLED) display, etc.

As mentioned above, the electronic device 100 can switch between the flattened state and the closed state through the movement of the hinge structure 02 , and the flexible screen 07 can be folded or unfolded along with the first casing 011 and the second casing 012 .

Generally, foldable electronic devices can be folded in two ways: outward folding and inward folding. Among them, the outward folding type refers to the process of converting the electronic device from the flattened state to the closed state, and when the electronic device is in the closed state, the flexible screen 07 is located outside the electronic device, that is, during the folding process and in the closed state, The flexible screen 07 is still visible to the user, and the user can perform some operations on the flexible screen 07 in the closed state. For example, as shown in FIG. 2 , when the first housing 011 rotates along the P1 direction and the second housing 012 rotates along the P2 direction, the flexible screen 07 is outside the electronic device 100, and such an electronic device 100 can Known as fold-out electronic products.

In contrast, the fold-in type means that when the electronic device is converted from the flattened state to the closed state and the electronic device is in the closed state, the flexible screen 07 is located inside the electronic device 100, that is, the flexible screen 07 is located inside the electronic device 100 during the folding process. It is gradually invisible to the user until in the closed state, the flexible screen 07 is accommodated between the two casings and completely hidden. For example, the electronic device 100 shown in FIG. 3 , which is an exploded view of the foldable electronic device 100 provided by an embodiment of the present application, when the first housing 011 rotates along the P1 direction, the second housing 012 rotates along the When rotating in the direction of P2, the flexible screen 07 is inside the electronic device 100, and until it is closed, the flexible screen 07 is accommodated between the two housings and completely hidden. Such an electronic device 100 can be called an inward-folding type. electronic product.

Whether it is the fold-out electronic device 100 shown in FIG. 2 or the fold-in electronic device 100 shown in FIG. Used to install circuit boards, batteries, receivers, speakers, cameras and other electronic components of electronic equipment. Among them, the circuit board can integrate electronic devices such as the main controller, storage unit, antenna module, and power management module of electronic equipment, and the battery can provide power for electronic devices such as the flexible screen 07, circuit board, receiver, speaker, and camera. As shown in FIG. 4, FIG. 4 is an exploded view of a foldable electronic device 100 provided by an embodiment of the present application. In the structure shown in FIG. The circuit board 03, for example, can be a printed circuit board (printed circuit board, PCB), and the battery 04 can be set in the installation space of the second casing 012, or, can be installed in the first casing 011 and the second casing Other types of electronic devices are respectively arranged on the body 012. For the convenience of description, the electronic devices arranged on the first casing 011 can be called the first electronic device, and the electronic devices arranged on the second casing 012 can be called the second electronic device. 2. Electronic devices.

Then, in order for the battery 04 to supply power to the circuit board 03 , it is necessary to provide an electrical connection structure spanning between the first casing 011 and the second casing 012 . Since the first housing 011 and the second housing 012 need to move relative or opposite each other repeatedly during the use of the electronic device, it is necessary to use a flexible housing that includes a bending part so that it can be bent For example, a flexible printed circuit (FPC) can be used for the electrical connection structure, and FIG. 4 shows one of the realizable structures of the flexible printed circuit 05.

With the miniaturization design of the electronic device 100, as shown in FIG. The space of the circuit board 05 is also continuously reduced. However, the bending shape of the flexible circuit board 05 cannot be changed basically. For example, the size of the flexible circuit board 05 cannot be reduced because the dimension between the first housing 011 and the second housing 012 along the L direction is reduced. The radius of curvature of the bent portion, if the radius of curvature of the bent portion is reduced, in the case of repeated folding of the first shell 011 and the second shell 012, the bending life of the bent portion will be seriously shortened, and may even As a result, the electrical connection performance of the flexible circuit board 05 fails.

Based on the fact that the space for accommodating the flexible circuit board 05 between the first housing 011 and the second housing 012 is constantly decreasing, this application presents a new structure for setting the flexible circuit board 05, Then, even if the dimension of the electronic device 100 along the L direction is gradually reduced, the arrangement structure basically does not change the bending form of the bending portion of the flexible circuit board 05 . The structures involved are described in detail below.

FIG. 5 shows a simplified diagram of a partial structure of an electronic device 100 according to an embodiment of the present application. This FIG. 5 may be a partially simplified diagram obtained by cutting along the A-A direction of FIG. 3 . FIG. 6 is an exploded diagram of FIG. 5 . 7 shows a simplified diagram of a partial structure of another electronic device 100 according to the embodiment of the present application. In the structures shown in FIGS. 5 to 7 , the rotating shaft structure 02 located between the first housing 011 and the second housing 012 is omitted. Combined with FIG. 5 , FIG. 6 and FIG. 7 , part of the first housing 011 , part of the second housing 012 , and part of the flexible circuit board 05 of the electronic device 100 of the present application are shown. Wherein, one end of the first housing 011 close to the rotating shaft structure 02 is formed with a first mounting surface M1, and one end of the second housing 012 close to the rotating shaft structure 02 is formed with a second mounting surface M2, and the first mounting surface M1 and The second installation surface M2 is an inclined surface, for example, both the first installation surface M1 and the second installation surface M2 may be inclined planes.

As shown in Fig. 5 and Fig. 6, the first shell 011 has the opposite first face A1 and the second face B1, the second shell 012 has the opposite third face A2 and the fourth face B2, the first face A1 It is located on the same side as the third surface A2, the second surface B1 and the fourth surface B2 are located on the same side, and the flexible screen 07 can be arranged on the side of the first surface A1 and the third surface A2. In this way, when the first housing 011 When the second housing 012 rotates in the direction P1 shown in FIG. 5 and the second housing 012 rotates in the direction P2 shown in FIG. 5 , the electronic device formed is an inward-folding electronic device; The screen 07 may be disposed on the sides of the second face B1 and the fourth face B2.

The oblique arrangement of the first installation surface M1 and the second installation surface M2 can be understood in this way, wherein, Fig. 5 and Fig. 6 show an arrangement method of the first installation surface M1 and the second installation surface M2, that is, along the The direction from the second surface B1 to the first surface A1 (that is, the T1 direction shown in Figure 5 and Figure 6), the first installation surface M1 is inclined from the first housing 011 toward the direction close to the shaft structure 02, the second installation surface M2 is inclined from the second housing 012 toward the direction close to the rotating shaft structure 02 . In addition, FIG. 7 shows another arrangement of the first mounting surface M1 and the second mounting surface M2, that is, along the direction from the first surface A1 to the second surface B1 (that is, the T2 direction shown in FIG. 7 , the T2 direction is the direction opposite to the T1 direction in FIG. The orientation of structure 02 is tilted.

That is to say, the first mounting surface M1 and the second mounting surface M2 given in this application are not parallel to the first surface A1 or the second surface B1, but have A face whose included angle is not equal to zero.

Continuing with FIG. 5 , FIG. 6 and FIG. 7 , a part of the flexible circuit board 05 is arranged along a direction parallel to the first installation surface M1 and fixed on the first installation surface M1 to form the first fixed surface shown in FIG. 6 . part Q1; another part of the flexible circuit board 05 is arranged along a direction parallel to the second mounting surface M2, and fixed on the second mounting surface M2 to form the second fixing part Q2 shown in FIG. 6; and, the flexible circuit board A portion of the plate 05 located between the first fixing portion Q1 and the second fixing portion Q2 is bent to form a bent portion Q3 shown in FIG. 6 .

With reference to FIG. 8 , the bending process of the flexible circuit board 05 when the electronic device shown in FIG. 5 and FIG. 6 is switched from the flattened state to the closed state is introduced. As shown in Figure 8, the first housing 011 rotates in the direction of P1, and the second housing 012 rotates in the direction of P2. Since the first fixing part Q1 is fixed on the first installation surface M1, the first fixing part Q1 follows the direction of the first housing. 011 can rotate synchronously, and since the second fixing part Q2 is fixed on the second mounting surface M2, the second fixing part Q2 can also rotate synchronously with the second housing 012, in this case, as shown in Fig. 5 to Fig. 8 From the structural diagrams of the two different states, it can be seen that during the continuous rotation of the first housing 011 and the second housing 012, the first fixing part Q1 and the second fixing part Q2 make the bending of the bending part Q3 The shape is constantly changing, that is, the radius of curvature of the bending portion Q3 is gradually increasing, and finally the bending portion Q3 cooperates with the rotating structure to realize the closing of the electronic device.

In addition, FIG. 9 also shows a simplified diagram of the partial structure of another electronic device 100 according to the embodiment of the present application. The embodiment shown in FIG. 9 is the same as the above-mentioned embodiments shown in FIG. 5 and FIG. The first installation surface M1 of the fixing part Q1 and the second installation surface M2 for fixing the second fixing part Q2 are also inclined surfaces. The difference between the embodiment shown in FIG. 9 and the embodiment shown in FIG. 5 and FIG. 6 above is that when the electronic device is in a flattened state, the bending part Q3 in FIG. 5 and FIG. However, in FIG. 9, when the electronic device is in the flattened state, the bent portion Q3 includes two protruding parts protruding toward the second surface B1, which are respectively the first protruding part Q31 and the second protrusion Q32.

In some other optional implementation manners, more protrusions may be provided on the basis of FIG. 9 . In the present application, there is no special limitation on the number of protruding parts and the value of the radius of curvature of the bending part Q3.

5, FIG. 6 and FIG. 9 together, when the electronic device is in the flattened state, the part of the bent part Q3 close to the first fixing part Q1, and the part of the bent part Q3 close to the second fixing part Q2 , all protrude toward the direction of the first side A1. In this way, the first fixing portion Q1 can be smoothly transitioned to the bent portion Q3 , and similarly, the second fixing portion Q2 can also be smoothly transitioned to the bent portion Q3 .

Based on the above descriptions of Fig. 5, Fig. 6, Fig. 7 and Fig. 8, and the way of fixing the flexible circuit board 05 on the first housing 011 and the second housing 012 shown in Fig. 9, it can be seen that for fixing the flexible circuit board 05 The installation surfaces of the first fixed part Q1 and the second fixed part Q2 of the circuit board 05, compared with the installation surface of the prior art shown in FIG. When using the inclined surface to fix the first fixing part Q1 and the second fixing part Q2 of the flexible circuit board 05, how can the size of the electronic device 100 along the L direction gradually decrease without changing the flexible circuit substantially? The bending form of the bending part Q3 of the board 05.

As shown in FIG. 10a, FIG. 10a shows a structure diagram of a fixing method of a flexible circuit board in the prior art, and FIG. 10b shows a structure diagram of a fixing method of a flexible circuit board of the present application. In FIG. 10 b , the inclination angle of the first installation surface M1 relative to the first surface A1 is 45°, and the inclination angle of the second installation surface M2 relative to the first surface A1 is -45°. As shown in Figure 10a, when the dimension S1 along the L direction of the first fixed part Q1 is 2mm, corresponding to Figure 10b, only the S2 dimension of the inclined first installation surface M1 along the L direction is 1.414mm, then There are still two protrusions between the first housing 011 and the second housing 012, and the radius of curvature of each protrusion does not change substantially, that is to say, the first housing 011 and the second housing 012 can be maintained The bending form of the bending portion between the two casings 012 is basically unchanged.

In addition, since the horizontal mounting surface in FIG. 10a is changed to the inclined mounting surface in FIG. 10b, the arcing tangent point transitioning from the first fixing part Q1 to the bending part Q3 will move from the position C1 in FIG. 10a To the position C2 in Fig. 10b, the corresponding moving amount S4 of the arcing tangent point is 1.3 mm. In this way, the first housing 011 can be moved from the position in FIG. 10a along the L direction by S3=1.886mm, thereby moving to the position in FIG. 10b. Similarly, the second housing 012 will also be moved by S3=1.886mm. In this case, the size of the entire electronic device along the L direction can be reduced by 3.772mm.

From another point of view, compared with the prior art, when the dimensions of the first housing 011 and the second housing 012 along the L direction remain unchanged, if the fixing method of the flexible circuit board shown in Figure 10b of the present application is adopted, The size of 3.772mm can be saved, so that more accommodation space can be avoided for other structural parts. For example, the size of the waterproof structure can be increased to improve the waterproof performance of the electronic device; or, the size of the battery can be increased to increase the battery capacity. capacity; or, the size of the circuit board can be increased to accommodate more electronic devices on the circuit board to meet the high configuration performance requirements of the electronic device.

In addition, since both ends of the flexible circuit board 05 located between the first housing 011 and the second housing 012 are fixed on the corresponding housing structure, the flexible circuit board 05 will not move left and right along the L direction. Offset, the shape consistency is significantly improved after multiple bending, and the life benefit of the flexible circuit board is also significantly improved.

In the electronic device 100 presented in this application, a reinforcing plate may also be included. For example, in FIG. 5 and FIG. 6 , including a first reinforcing plate 061 and a second reinforcing plate 062, the first reinforcing plate 061 is fixed on the first installation surface M1, and the first fixing part Q1 is fixed on the first reinforcing plate. On the reinforcing plate 061 , that is, the first fixing portion Q1 is fixed on the first installation surface M1 through the first reinforcing plate 061 . Similarly, the second reinforcing plate 062 is fixed on the second installation surface M2, and the second fixing part Q2 is fixed on the second reinforcing plate 062.

Since in the flexible circuit board 05 shown in FIG. 5 and FIG. 6, the bent portion Q3 only includes a protruding portion protruding toward the second side B1, furthermore, when the first housing 011 and the second housing 012 are facing each other When rotating, the bending tendency of the bending part Q3 can be constrained by the first reinforcing plate 061 and the second reinforcing plate 062, the morphological rigidity of the flexible circuit board 05 can be improved, and the deformation resistance of the bending part Q3 can be enhanced, thereby , so that the original shape can still be maintained after the bending part Q3 is bent several times without deformation.

With reference to Fig. 9 and Fig. 10b, the bending part Q3 shown in Fig. 9 and Fig. 10b includes a first protruding part Q31 and a second protruding part Q32, between the first protruding part Q31 and the second protruding part Q32 They are connected by a connecting portion Q33, and the connecting portion Q33 protrudes toward the direction of the first side A1. Then, compared with the above-mentioned Fig. 5 and Fig. 6, in addition to including the first reinforcing plate 061 and the second reinforcing plate 062, it also includes a third reinforcing plate 063, and the third reinforcing plate 063 can be fixed on the shaft structure 02, the connecting portion Q33 is fixed on the third reinforcing plate 063, where the third reinforcing plate 063 is parallel to the first side A1 of the first casing 011. If so designed, the bending tendency of the part between the first fixing part Q1 and the connecting part Q33 can be constrained by the first reinforcing plate 061 and the third reinforcing plate 063, and the second reinforcing plate 062 and the third reinforcing plate 063 can constrain the bending tendency of the part between the second fixing part Q2 and the connecting part Q33, and finally the bending tendency of the entire bending part Q3 can be constrained by three reinforcing plates, improving the morphological rigidity of the entire flexible circuit board 05 , to enhance the deformation resistance of the bending portion Q3.

Based on the above description of the different forms of the bending portion Q3 of the flexible circuit board 05, it can be considered that when the bending portion Q3 includes two or more protrusions as shown in FIG. The part of the bending part 03 is fixed on the shaft structure 02, so that when the electronic device is flattened or closed, the bending tendency of the bending part Q3 is constrained, so that the bending tendency of the bending part Q3 can be controlled.

The reinforcing plate involved in this application can be a sheet material, for example, a steel plate can be used; or a glass fiber epoxy resin copper clad laminate can be used, and this material can be called FR-4 material; or other materials can be used. In this application, there is no special limitation on the optional materials of the reinforcing plate.

In some optional implementation manners, the flexible circuit board may be fixed on the reinforcement board by using an adhesive layer, for example, pressure sensitive adhesive (PSD) may be used to fix the connection between the reinforcement board and the flexible circuit board. Since the pressure-sensitive adhesive is an adhesive sensitive to pressure, in this way, when the flexible circuit board is bent, the flexible circuit board can have enhanced length self-adaptive ability.

In the electronic device 100 provided in the embodiment of the present application, a gap (such as the R area in Figure 3) will be formed at the junction of the first middle frame 011 and the second middle frame 012, and then the gap will become liquid (for example, water) into the electronic device 100. Fig. 11 shows the transmission path of the water flowing in from the gap R, as shown by the dashed line with arrows in Fig. Among the electronic devices of 012, the electronic device provided in this application may also include a waterproof structure 11, and the installation position of the waterproof structure 11 can be implemented in various ways. The installation position and structure of the waterproof structure 11 will be introduced below.

In the implementation shown in FIG. 11 , the flexible circuit board 05 includes a third fixing part Q4 that is connected to the first fixing part Q1 and is away from the bending part Q3. The gaps are filled by the waterproof structure 11 . In this way, the water flowing in from the gap R will not enter into the electronic device of the first middle frame 011 under the blocking effect of the waterproof structure 11 , thereby realizing the protection of the electronic device.

In addition, the flexible circuit board 05 also includes a fourth fixing part Q5 connected to the second fixing part Q2 and away from the bending part Q3. The gap between the four fixing parts Q5 and the first housing 011 is also filled with the waterproof structure 11 to prevent water from entering the electrical components of the second middle frame 012, thereby improving the waterproof performance of the entire electronic device.

In addition, since the first mounting surface M1 for fixing the first fixing portion Q1 is an inclined surface, when the size of the electronic device 100 provided in this application along the L direction is equal to the size of the existing electronic device 100 along the L direction At this time, more installation space can be provided for the waterproof structure 11 through the inclined installation surface, and then the size of the waterproof structure 11 along the L direction can be increased to improve the waterproof performance of the electronic device.

Continuing to refer to FIG. 11 , a third installation surface M3 is also formed on the first middle frame 011, the third installation surface M3 is connected to the first installation surface M1, and the third installation surface M3 is parallel to the first surface A1 The waterproof structure 11 is fixed in the gap formed between the third mounting surface M3 and the third fixing part Q4 of the flexible circuit board 05 . In this way, under the premise of realizing the waterproof effect, the flexible circuit board 05 can be smoothly extended from the first fixing part Q1 to the first middle frame 011 .

For the waterproof structure 11 arranged on the second middle frame 012 , reference may be made to the arrangement of the waterproof structure 11 on the first middle frame 011 , which will not be repeated here.

Fig. 12 shows an exploded physical structure diagram of an electronic device 100 of the present application. As shown in Fig. 12, the electronic device 100 not only includes the above-mentioned flexible circuit board 05, the rotating shaft structure 02, and is arranged opposite to the rotating shaft structure 02. The first housing 011 and the second housing 012 on both sides may further include a cover 08, which is fixedly connected to the shaft structure 02. When the electronic device 100 is in a flattened state, the shaft structure 02 and the cover 08 are closed. Hidden between the first housing 011 and the second housing 012, it is invisible to the user. However, when the electronic device 100 switches from the flattened state to the closed state, the cover 08 is gradually exposed, which not only protects the rotating shaft structure 02 , but also improves the appearance of the entire electronic device 100 .

Fig. 13 is a structural diagram of the flexible circuit board 05 in Fig. 12, the flexible circuit board 05 includes the first fixing part Q1, the second fixing part Q2 and the bending part Q3, as well as the third fixing part Q4 and the fourth fixing part Q5 In addition, the flexible circuit board 05 may further include a first extending portion Q6 connected to the third fixing portion Q4, and a second extending portion Q7 connected to the fourth fixing portion Q5. Q in FIG. 13 includes a first fixing portion Q1 , a second fixing portion Q2 , a bent portion Q3 , and a third fixing portion Q4 and a fourth fixing portion Q5 .

12 and 13, the first extension part Q6 can be extended to the first housing 011 to be electrically connected to the first electronic device provided on the first housing 011. Similarly, the second extension part Q7 can be extended to It extends to the second housing 012 and is electrically connected to the second electronic device arranged on the second housing 012 . For example, the first extension part Q6 may be electrically connected to a circuit board provided on the first casing 011 , and the second extension part Q7 may be electrically connected to a battery provided on the second casing 012 .

FIG. 14 shows a partial physical structure diagram of the electronic device 100 of the present application, and FIG. 14 is an exploded view. In this figure 14, it shows how the flexible circuit board 05 is arranged on the first housing 011, and the arrangement of the flexible circuit board 05 on the second housing 012 can refer to the arrangement of the flexible circuit board 05 on the first housing. The setting method on the body 011.

As shown in FIG. 14, the first housing 011 is provided with a first through hole 011a penetrating through the first surface A1 and the second surface B2, and the first through hole 011a is opened close to the shaft structure 02. In this case, the flexible circuit board 05 A part of it can pass through the first through hole 011a from the first surface A1 of the first shell 011 to the second surface B1. It can also be understood that by opening the first through hole on the first shell 011 to accommodate Bending flex circuit board 05.

In addition, as shown in Figure 14, the first installation surface M1 is formed on the side wall surface of the first through hole 011a away from the rotating shaft structure 02, and further, the reinforcing plate can be fixed on the first through hole 011a. On the installation surface M1 , the part of the flexible circuit board 05 is wound from the first surface A1 to the second surface B1 through the first installation surface M1 through the first through hole 011 a in sequence.

FIG. 15 shows a cross-sectional view of the assembled flexible circuit board 05 and the first housing 011 in FIG. 14 along the B-B direction, and FIG. 16 is an enlarged view of C in FIG. 15 . As shown in Fig. 16, the first installation surface M1 formed on the first housing 011 is shown, the reinforcing plate 06 is fixed on the first installation surface M1, and the part of the flexible circuit board 05 is fixed by the adhesive layer 09 On the reinforcing plate 06.

As shown in FIG. 16 , the third installation surface M3 for carrying the waterproof structure is also formed on the side wall surface of the first through hole 011 a having the first installation surface M1 . In such a design, when the first through hole 011a is opened, the inclined first mounting surface M1 and the horizontal third mounting surface M3 can be formed together. From a technical point of view, the manufacturing process can be simplified, and no additional A structural member carrying the waterproof structure 11 is arranged near a through hole 011a. From the perspective of the entire electronic equipment structure, on the premise of realizing waterproof, the structure of the entire electronic equipment is made more compact to meet the miniaturization design requirements of electronic equipment.

Furthermore, referring to FIG. 16 , the third installation surface M3 is provided with a first waterproof layer 111 belonging to a waterproof structure, and the part of the flexible circuit board 05 extends from the first installation surface M1 to the first waterproof layer 111 until it reaches the second waterproof layer. A position where the casing 011 is connected with the electronic device.

Please continue to refer to FIG. 16 , since parts of the flexible circuit board 05 and the first waterproof layer 111 are both disposed in the first through hole 011a of the first casing 011, in order to compress the flexible circuit board 05 and the first waterproof layer 111 In the first through hole 011a, as shown in FIG. 16 , the electronic device 100 of the present application further includes a pressure plate structure 10, which is fixed on the first housing 011 and partially extends to the first through hole 011a, The first fixing part Q1 of the flexible circuit board 05 is pressed on the first installation surface M1, and the third fixing part Q3 of the flexible circuit board 05 is pressed on the third installation surface M3.

In order to prevent water from entering the electronic device of the first housing 011 from the gap formed between the pressure plate structure 10 and the third fixing part Q3, in some optional implementation structures, the pressure plate structure 10 and the third fixing part Q3 can The gap between Q3 is also filled with the second waterproof layer 112 belonging to the waterproof structure. In this way, the third fixing part Q3 of the flexible circuit board 05 is clamped by the two-layer waterproof structure to further improve the waterproof performance of the electronic device.

For the connection structure between the pressing plate structure 10 and the first housing 011 in FIG. 16 , fasteners, such as bolts, may be used. Alternatively, the pressing plate structure 10 may also be fixed on the first shell 011 by welding.

In the achievable assembly process, after the part of the flexible circuit board 05 is pressed against the first housing 011 by the pressing plate structure 10, the glue dispensing process can be continued to fill the gap of the first through hole 011a with glue to Further improve waterproof performance.

The material of the waterproof layer involved in this application can be selected from silica gel, polyester resin (polyethylene terephthalate, PET) base double-sided adhesive tape.

Figure 17 shows a structural diagram of a reinforcing plate 06 that can be arranged on the first installation surface M1 of Figures 15 and 16. In this Figure 17, the reinforcing plate 06 includes opposite first ends Correspondingly, the ear 06a and the second end ear 06b can be provided on the first shell 011 with an inlay groove that can be embedded in the first end ear 06a, and an inlay groove that can be embedded in the second end ear 06b. In this way, in the fixed figure 16 When using the reinforcing plate 06, the first ear 06a and the second ear 06b can be inserted into the corresponding inlay grooves, so as to further enhance the connection strength between the reinforcing plate 06 and the first shell 011.

The following describes the positional relationship between the flexible circuit board 05 and the rotating shaft structure 02 in some achievable layout modes with reference to FIG. 18 and FIG. 19 . Wherein, FIG. 18 shows an exploded view of a partial structure of the electronic device 100, and FIG. 19 shows a cross-sectional view of the assembled flexible circuit board 05 and the shaft structure 02 of FIG. 18 cut along the C-C direction. As shown in FIG. 18, the rotating shaft structure 02 has opposite faces A3 and B3, where the face A3 may be referred to as the fifth face, and the face B3 may be referred to as the sixth face, and the face A3 and the first housing The first surface A1 of 011 is on the same side, the surface B3 and the second surface B1 of the first housing 011 are on the same side, and the shaft structure 02 is provided with a second through hole 02a passing through the surface A3 and the surface B3, as shown in Figure 19, At least part of the bent portion Q3 of the flexible circuit board 05 can be wound from the surface A3 to the surface B3 through the second through hole 02 a. That is to say, by opening a through hole on the rotating shaft structure 02 to avoid bending of the bending part Q3 , such a flexible circuit board structure can be called an electrical connection structure through the shaft.

Of course, since the flexible circuit board 05 in FIG. 18 and FIG. 19 includes a protruding portion protruding toward the surface B3, a through hole is opened on the rotating shaft structure 02 . In other implementations, if the flexible circuit board 05 includes more protrusions, correspondingly, more through holes can be opened on the shaft structure 05, so as to avoid space for the bending of the plurality of protrusions.

In the description of this specification, specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in an appropriate manner.

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims (15)

1. An electronic device, characterized in that it comprises:

   a first housing and a second housing;

   A rotating shaft structure, the first housing and the second housing are arranged on opposite sides of the rotating shaft structure, the first housing and the second housing can rotate relative to each other through the rotating shaft structure, so as to Switching the electronic device from a flattened state to a closed state, the first housing includes opposite first and second faces, one of the first and second faces is used to support the flexible screen ;

   flexible circuit board;

   Wherein, one end of the first housing close to the rotating shaft structure is formed with a first mounting surface, and one end of the second housing close to the rotating shaft structure is formed with a second mounting surface, and the first mounting surface Both the second mounting surface and the second installation surface are inclined surfaces inclined relative to the first surface;

   A part of the flexible circuit board is fixed on the first mounting surface to form a first fixing part;

   Another part of the flexible circuit board is fixed on the second mounting surface to form a second fixing part;

   A portion of the flexible circuit board between the first fixing part and the second fixing part is bent to form a bent part.
2. The electronic device according to claim 1, further comprising: a first reinforcing plate and a second reinforcing plate;

   The first reinforcing plate is fixed on the first installation surface, and the first fixing part is fixed on the first reinforcing plate;

   The second reinforcing plate is fixed on the second installation surface, and the second fixing part is fixed on the second reinforcing plate.
3. The electronic device according to claim 1 or 2, wherein when the first casing and the second casing rotate toward each other, the first surface is closer to the second casing relative to the second surface body;

   Along the direction from the second surface to the first surface, the first mounting surface is inclined from the first casing toward the direction of the shaft structure, and the second mounting surface is inclined from the second The housing is inclined towards the direction close to the rotating shaft structure.
4. The electronic device according to claim 3, wherein when the electronic device is in the flattened state, the part of the bent part close to the first fixing part, and the part of the bent part Parts close to the second fixing portion protrude toward the first surface.
5. The electronic device according to claim 3 or 4, characterized in that the electronic device further comprises a circuit board arranged on the first casing, the circuit board is provided with a first electronic device, and the first The second housing is provided with a second electronic device;

   A part of the flexible circuit board is connected to the first fixing part, extends to the first housing, and is electrically connected to the first electronic device;

   Another part of the flexible circuit board is connected to the second fixing part, extends to the second housing, and is electrically connected to the second electronic device.
6. The electronic device according to any one of claims 3-5, characterized in that, part of the bending portion is fixed on the rotating shaft structure.
7. The electronic device according to any one of claims 3-6, wherein when the electronic device is in the flattened state, the bending portion includes a first protruding portion protruding toward the second surface. a protruding part and a second protruding part, and between the first protruding part and the second protruding part, and connecting the first protruding part and the second protruding part to the a connecting portion protruding in the direction of the first surface;

   The connecting part is fixed on the rotating shaft structure.
8. The electronic device according to claim 7, further comprising: a third reinforcing plate, the third reinforcing plate is parallel to the first surface;

   The third reinforcing plate is fixed on the rotating shaft structure, and the connecting portion is fixed on the third reinforcing plate.
9. The electronic device according to any one of claims 3-5, wherein when the electronic device is in the flattened state, the bending part includes a protruding part toward the second surface. bulge.
10. The electronic device according to any one of claims 1-9, wherein the electronic device further comprises: a waterproof structure,

    The flexible circuit board includes a third fixing part connected to the first fixing part and away from the bending part, and the gap between the third fixing part and the first housing is covered by the waterproof structure padding.
11. The electronic device according to claim 10, wherein the first housing is formed with a first through hole passing through the first surface and the second surface;

    The first installation surface is formed on the side wall surface of the first through hole away from the rotating shaft structure, and the side wall surface of the first through hole forming the first installation surface is also formed with a a third installation surface connected to the installation surface, the third installation surface is parallel to the first surface;

    The waterproof structure is formed on the third installation surface, and the third fixing part is fixed on the waterproof structure;

    A portion of the flexible circuit board passes through the first mounting surface and the third mounting surface of the first through hole in sequence from the first surface to the second surface.
12. The electronic device according to claim 11, further comprising: a pressing plate structure;

    The pressing plate structure is fixed on the first housing, and partly extends into the first through hole, presses the first fixing part on the first mounting surface, and presses the third fixing part The part is pressed against the third mounting surface.
13. The electronic device according to any one of claims 1-12, wherein the shaft structure includes opposite fifth and sixth faces, and the fifth face and the first face are located on the same side;

    The rotating shaft structure is formed with a second through hole passing through the fifth surface and the sixth surface;

    At least a part of the bent portion goes around from the fifth surface to the sixth surface through the second through hole.
14. The electronic device according to any one of claims 1-13, wherein an inclination angle of the first installation surface relative to the first surface is 15° to 75°.
15. The electronic device according to any one of claims 1-14, further comprising: a flexible screen;

    The flexible screen is arranged on the same side of the first housing, the second housing and the shaft structure;

    And part of the flexible screen is fixed on the first casing and the second casing.

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