CN115988111A

CN115988111A - Foldable electronic equipment

Info

Publication number: CN115988111A
Application number: CN202111198214.0A
Authority: CN
Inventors: 马春军; 姜文杰; 李云勇; 王岗超; 徐正一
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2023-04-18
Also published as: WO2023061050A1

Abstract

The embodiment of the application provides a foldable electronic device, which comprises a hinge assembly and two middle frames which are rotationally connected through the hinge assembly, wherein the hinge assembly comprises a main shaft mechanism and two rotating mechanisms which are rotationally connected with the main shaft mechanism, each rotating mechanism comprises at least one swinging piece and at least one connecting piece, the first end of each swinging piece is connected with the main shaft mechanism, the second end of each swinging piece is rotationally connected with the connecting piece, and the connecting piece is connected with the middle frames of the electronic device. One of the swinging piece and the connecting piece is provided with a sliding groove, the other one of the swinging piece and the connecting piece is provided with a sliding piece matched with the sliding groove, when the swinging piece rotates relative to the connecting piece, the sliding piece slides in the sliding groove, one side of the sliding piece, which is back to the main shaft mechanism, is abutted against the sliding groove, the sliding piece can play a role in supporting the abutting against the connecting piece, and the connecting gap and the virtual position between the connecting piece and the swinging piece are reduced, so that the movement of the connecting piece towards the direction of the main shaft mechanism in the scenes of falling or collision and the like is reduced or avoided, and the reliability of the electronic equipment is improved.

Description

Foldable electronic equipment

Technical Field

The application relates to the technical field of terminals, in particular to a foldable electronic device.

Background

With the gradual maturity of flexible screen technology, the display mode of electronic equipment is greatly changed, one of which is the appearance of electronic equipment such as foldable mobile phones and computers, the flexible screen of the foldable electronic equipment can flexibly change switching modes according to different use scenes, and has high screen occupation ratio and definition.

At present, a foldable electronic device, such as an electronic device foldable into two layers, generally includes two middle frames, and the two middle frames are rotatably connected through a hinge assembly, so that the two middle frames can rotate relatively, and further the two middle frames can be mutually folded or unfolded. The hinge assembly generally includes a main shaft mechanism and rotating mechanisms located at both sides of the main shaft mechanism, wherein the rotating mechanisms include a swinging member and a connecting member, one end of the swinging member is rotatably connected to the main shaft mechanism, the other end of the swinging member is connected to the connecting member, the connecting member is connected to the middle frames, the swinging member rotates relative to the main shaft mechanism, and the middle frames are driven by the connecting member to rotate relative to the main shaft mechanism, so that the two middle frames can rotate relative to each other.

However, there are connection gaps and virtual positions in the connection among the swinging member, the connecting member, and the main shaft mechanism in the hinge assembly, which may cause the dislocation of the above components in the situations of dropping or collision of the foldable electronic device, for example, the dislocation of the connecting member toward the main shaft mechanism, and thus reduce the reliability of the foldable electronic device.

Disclosure of Invention

The embodiment of the application provides a foldable electronic device, and solves the problem that the reliability of the electronic device is affected due to the fact that the dislocation of parts easily occurs in the scenes such as collision or falling caused by the existence of a connecting gap and a virtual position in a hinge assembly in the conventional electronic device.

The embodiment of the application provides a foldable electronic device, including: the display device comprises a flexible display screen, a hinge assembly and two middle frames positioned on two sides of the hinge assembly, wherein the two middle frames are rotatably connected through the hinge assembly, and the flexible display screen is laid on the hinge assembly and the middle frames;

the hinge assembly comprises a main shaft mechanism and two rotating mechanisms positioned on two sides of the main shaft mechanism, and the two rotating mechanisms are respectively and rotatably connected with the main shaft mechanism;

each rotating mechanism comprises at least one swinging piece and at least one connecting piece, wherein the first end of each swinging piece is rotatably connected with the main shaft mechanism, the second end of each swinging piece is rotatably connected with the connecting piece, and the connecting piece is connected with the middle frame;

the connecting piece is provided with a sliding groove, a groove opening of the sliding groove faces the flexible display screen, and the sliding groove extends from one side, facing the flexible display screen, of the connecting piece to one side, back to the flexible display screen, of the connecting piece; the swinging piece is provided with a sliding piece matched with the sliding groove, and one side of the sliding piece, which is back to the main shaft mechanism, is abutted against the inner wall of the sliding groove;

when the electronic equipment is in a flattening state, the sliding piece is partially positioned in the sliding groove through the notch; when the electronic equipment is in the folding process, the sliding piece slides along the extending direction of the sliding groove, and when the electronic equipment is in the folding state, the sliding piece is embedded into the sliding groove.

That is, the whole process that slewing mechanism rotated relatively main shaft mechanism, the slider on the swing piece slides in the spout, one side and the spout inner wall butt of slider dorsad main shaft mechanism simultaneously, that is to say, electronic equipment is in fold condition and flat state, and in the in-process of switching between above-mentioned state, one side and the spout inner wall butt of slider dorsad main shaft mechanism, the swing just so can play the effect that the butt supported to the connecting piece, connection clearance and virtual position between swing piece and the connecting piece have been reduced, connection clearance and virtual position in the hinge subassembly have just also been reduced, in electronic equipment falls or collision in-process, the butt support of the spout of connecting piece is supported to the slider of swing piece, can reduce or avoid the connecting piece towards main shaft mechanism's dislocation, electronic equipment's reliability has been promoted. Meanwhile, when the electronic equipment is in a folded state, the reduction of the screen accommodating space caused by the dislocation of the connecting piece is avoided, the damage to the flexible display screen in the processes of falling or collision and the like is reduced or avoided, and the reliability of the electronic equipment is further improved.

In a possible implementation manner, the second end is connected with one end of the connecting piece, which faces away from the main shaft mechanism;

the connecting piece face be provided with relative two on the one side of flexible display screen the spout, be provided with on the terminal surface of the relative both sides of second end the slider. Therefore, the abutting supporting effect of the swinging piece on the connecting piece is further improved, the play of the connecting piece is further reduced or avoided, and the reliability of the electronic equipment is improved.

In addition, the second end of the swinging piece is connected with one end of the connecting piece, which is back to the main shaft mechanism, so that the total connecting length of the connecting piece and the swinging piece in the x direction can be reduced, the width of a hinge assembly is favorably reduced, and the light and thin design of electronic equipment is favorably realized.

In a possible implementation manner, an assembly groove is formed in one surface, facing the flexible display screen, of the connecting piece, the assembly groove at least comprises a first side wall and a second side wall which are opposite, and the first side wall and the second side wall are respectively provided with the sliding grooves;

the assembling groove further comprises a third side wall adjacent to the first side wall and the second side wall, the third side wall is located at one end, back to the spindle mechanism, of the connecting piece, the second end is rotatably arranged on the third side wall, and end faces of two sides of the second end are respectively abutted to the first side wall and the second side wall. The second end just can play the effect that the butt was supported to the assembly groove like this, and the swing piece also can play the ascending support of y side to the connecting piece, has reduced connecting gap and virtual position of connecting piece and swing piece in y side, reduces and has avoided in electronic equipment falls or scenes such as collision, and the drunkenness of connecting piece in y side has further promoted electronic equipment's reliability.

In a possible implementation manner, the device further comprises a first pin shaft, the second end is provided with a first rotating portion, the third side wall is provided with a connecting portion, and the first rotating portion is rotatably connected with the connecting portion through the first pin shaft. Thereby achieving a rotational connection of the second end of the oscillating piece to the connecting piece.

In one possible implementation, the first rotating part includes a first rotating arm and a second rotating arm with a gap therebetween;

the first hole of dodging and the second hole of dodging have been seted up on the third lateral wall, connecting portion are located on the outer wall of third lateral wall, just connecting portion are located first dodge the hole with the second dodges between the hole, first rotor arm with the second rotor arm is worn to establish respectively first dodge the hole with on the second dodges the hole, first rotor arm with the second rotor arm passes through first round pin axle with connecting portion rotate and link to each other. Thereby achieving a rotational fit between the second end of the oscillating member and the third side wall of the fitting groove of the connecting member. Meanwhile, the connecting position of the second end of the swinging piece and the connecting piece is further far away from the main shaft mechanism, so that the total connecting length of the connecting piece and the swinging piece in the x direction is further reduced, the width of a hinge assembly is reduced, and the light and thin design of electronic equipment is facilitated.

In a possible implementation manner, a side surface of the sliding part, which faces away from the spindle mechanism, forms an abutting surface, a side wall surface of the sliding chute, which faces away from the spindle mechanism, abuts against the abutting surface, the abutting surface and the side wall surface are both arc-shaped surfaces, and the side wall surface is matched with the abutting surface in shape. The contact area who helps increase spout and slider like this promotes the butt and supports intensity, and then promotes the support intensity of swing piece to the connecting piece, helps further reducing the connecting gap and the virtual position between connecting piece and the swing piece, promotes electronic equipment's reliability.

In one possible implementation, the sliding member is a wedge-shaped block, and a thin end of the wedge-shaped block is arranged adjacent to a groove bottom of the sliding groove. The contact area of slider and spout helps increasing, and then promotes the butt between the two and supports intensity, further reduces joint gap and virtual position in the hinge subassembly, promotes electronic equipment's reliability.

In a possible implementation manner, the first end is provided with a second rotating portion, two outer edges of two sides of the second rotating portion are provided with arc surfaces, an arc portion in fit with the arc surfaces in a rotating mode is arranged in the spindle mechanism, and the swinging piece is connected with the spindle mechanism in a rotating mode through the second rotating portion.

In a possible implementation manner, each of the rotating mechanisms further includes at least one linkage member, one end of the linkage member is connected to the connecting member, the other end of the linkage member is rotatably connected to the spindle mechanism, and two linkage members respectively located in the two rotating mechanisms are rotatably connected to each other through the spindle mechanism, so that when one of the linkage members rotates relative to the spindle mechanism, the other one of the linkage members is driven to rotate relative to the spindle mechanism. Just so realized the linkage between first center and the second center, made first center and second center can rotate in step, when launching or folding electronic equipment, only need drive wherein one side center rotate just can drive the opposite side center and rotate, realize electronic equipment's folding or launch, the operation is more convenient, helps promoting to use and experiences.

In a possible implementation manner, a positioning groove is formed in the connecting piece, the positioning groove extends from one end of the connecting piece facing the spindle mechanism to one end of the connecting piece facing away from the spindle mechanism, and one end of the linkage piece is inserted into the positioning groove. Like this, linkage one end sets up in the coordination groove through inserting the mode of establishing, but convenient to detach and installation, the realization of being convenient for.

In addition, as the positioning groove penetrates through the width direction (x direction) of the connecting piece, one side, back to the spindle mechanism, of one end of the linkage piece can be located at one end, back to the spindle mechanism, of the connecting piece, connection strength between the linkage piece and the connecting piece can be enhanced while connection between the linkage piece and the connecting piece is achieved, total length between the linkage piece and the connecting piece in the x direction is reduced, reduction of width of a hinge assembly is facilitated, and lightening and thinning design of electronic equipment is facilitated.

In one possible implementation, the spindle mechanism includes a gear assembly, and the other end of the linkage has a gear portion, the gear portion is rotationally connected with the spindle mechanism, and the gear portion is meshed with the gear assembly.

In a possible implementation manner, each of the rotating mechanisms further includes a supporting member, one end of the supporting member is disposed adjacent to the spindle mechanism, the connecting member is located at an end of the supporting member facing away from the spindle mechanism, and the connecting member is rotatably connected to the supporting member.

In a possible implementation manner, the support member is provided with an arc guide rail piece, arc guide rail grooves are formed in two ends of the connecting member, the arc guide rail piece is in running fit with the arc guide rail grooves, and the support member is connected with the connecting member through the arc guide rail grooves and the arc guide rail piece in running fit.

In a possible implementation manner, the rotating mechanism further includes at least one linkage member, one end of the linkage member is connected to the connecting member, the other end of the linkage member is rotatably connected to the spindle mechanism, and two linkage members located in the two rotating mechanisms are rotatably connected to each other through the spindle mechanism, so that when one of the linkage members rotates relative to the spindle mechanism, the other one of the linkage members is driven to rotate relative to the spindle mechanism;

the linkage piece is connected with the support piece in a rotating mode. Therefore, the movement redundancy of the supporting piece can be reduced, the setting gap and the virtual position of the supporting piece are reduced, the connecting gap and the virtual position in the hinge assembly are further reduced, and the reliability of the electronic equipment is further improved.

In a possible implementation mode, the device further comprises a second pin shaft, an arc-shaped track groove is formed in the supporting piece, the second pin shaft penetrates through the arc-shaped track groove and moves along the arc-shaped track groove, and the second pin shaft is connected with the linkage piece, so that the linkage piece is connected with the supporting piece in a rotating mode through the cooperation of the second pin shaft and the arc-shaped track groove.

Drawings

Fig. 1 is a schematic structural diagram of a foldable electronic device provided in an embodiment of the present application in a folded state;

fig. 2 is a schematic structural diagram of a foldable electronic device in an intermediate state according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a foldable electronic device provided in an embodiment of the present application in a flattened state;

FIG. 4 is a schematic view of an inner side structure of a hinge assembly in a flattened state according to an embodiment of the present disclosure;

FIG. 5 is a schematic view of an outer side structure of a hinge assembly in a flattened state according to an embodiment of the present disclosure;

FIG. 6 is a schematic side view of a hinge assembly in a flattened state according to an embodiment of the present disclosure;

FIG. 7 is a side view of a hinge assembly in a folded position according to an embodiment of the present disclosure;

FIG. 8 is an enlarged view of a portion of the structure of FIG. 5;

FIG. 8a is a partially disassembled schematic view of a hinge assembly provided by an embodiment of the present application;

FIG. 9 is a schematic view of a portion of the interior of a hinge assembly according to an embodiment of the present disclosure;

fig. 10 is a schematic cross-sectional partial structure view of an electronic device in a flattened state according to an embodiment of the present disclosure;

fig. 11 is a schematic cross-sectional partial structure diagram of an electronic device in an intermediate state according to an embodiment of the present disclosure;

fig. 12 is a cross-sectional partial structure diagram of an electronic device in a folded state according to an embodiment of the present application;

fig. 13 is a cross-sectional front view of an electronic device according to an embodiment of the present application in a folded state;

FIG. 14 is a schematic structural diagram of a connector according to an embodiment of the present disclosure;

FIG. 15 is a schematic structural view of a pendulum according to an embodiment of the present disclosure;

FIG. 15a is a partially broken away schematic view of another hinge assembly provided by an embodiment of the present application;

FIG. 15b is a cross-sectional partial schematic view of a hinge assembly in a flattened state at a slider according to an embodiment of the present application;

FIG. 16 is a schematic view of the assembly of the pendulum and the link when the hinge assembly is in a flattened state as provided by an embodiment of the present application;

FIG. 16a is a cross-sectional view of a portion of a hinge assembly in a flattened state, shown in the assembled position in accordance with an exemplary embodiment of the present disclosure;

FIG. 16b is a cross-sectional partial schematic view of another hinge assembly in a flattened state according to an embodiment of the present application;

FIG. 16c is a cross-sectional view of a hinge assembly in a folded position, partially in section, shown in the mounting slot in accordance with an embodiment of the present application;

FIG. 17 is a schematic view of the assembly of the swing member and the link member in a folded position for a hinge assembly according to an embodiment of the present application;

FIG. 18 is a partially disassembled schematic view of yet another hinge assembly provided by an embodiment of the present application;

FIG. 18a is a schematic view of a portion of a hinge assembly according to an embodiment of the present disclosure;

FIG. 19 illustrates a partially disassembled view of another hinge assembly provided in accordance with an embodiment of the present application;

FIG. 19a is an enlarged view of a portion of the cooperating linkage member and connector provided in accordance with an embodiment of the present application;

FIG. 19b is a schematic rear view of a linkage member according to an embodiment of the present application;

FIG. 19c is a cross-sectional partial schematic view of a hinge assembly at a linkage and a connector according to an embodiment of the present disclosure;

FIG. 20 is a front view of a linkage member according to an embodiment of the present disclosure;

FIG. 21 is a cross-sectional view of a hinge assembly at a linkage according to an embodiment of the present disclosure;

FIG. 22 is a partially broken away schematic view of yet another hinge assembly provided by an embodiment of the present application;

fig. 23 is an assembly schematic view of a support member and a link member according to an embodiment of the present disclosure.

Description of reference numerals:

100-an electronic device; 10-a first middle frame; 20-a second middle frame;

30-a hinge assembly; 31-a spindle mechanism; 311-a main inner shaft;

312-a main outer shaft; 313-arc portion; 314-a gear assembly;

32 a-a first rotation mechanism; 32 b-a second rotation mechanism; 321-an oscillating piece;

3211-a slide; 3211 a-an abutting face; 3212-a first rotating part;

3212 a-a first rotating arm; 3212 b-a second rotating arm; 3213-a second rotating part;

3213 a-arc surface; 322-a connector; 3221-a chute;

3222-a fitting groove; 3222 a-a first side wall; 3222 b-a second side wall;

3222 c-a third side wall; 3223-a connecting portion; 3226-a registration slot;

3227-arc guide rail groove; 323-a linkage; 3231-gear section;

3231 a-tooth construction; 324-a support; 3241-arc shaped rail members;

3242-arc track groove; 325-first pin; 326-a second pin;

327-a shaft; 33-Rong Bing space; 40-flexible display screen.

Detailed Description

The terminology used in the description of the embodiments of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the application, as the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The foldable electronic device provided in the embodiment of the present application may include, but is not limited to, a foldable fixed terminal or a mobile terminal, such as a mobile phone, a tablet computer, a notebook computer, an ultra-mobile personal computer (UMPC), a handheld computer, a touch television, an intercom, a netbook, a POS machine, a Personal Digital Assistant (PDA), a wearable device, and a virtual reality device.

In the embodiment of the present application, the foldable electronic device is taken as an example to describe, where the foldable mobile phone may be a foldable mobile phone with an outward folded screen, or the foldable mobile phone may also be a foldable mobile phone with an inward folded screen and an additional outward folded screen.

The following takes a foldable mobile phone with a folded screen as an example, and the foldable electronic device and the hinge assembly provided in the embodiments of the present application are described in detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a foldable electronic device provided in an embodiment of the present application in a folded state, fig. 2 is a schematic structural diagram of a foldable electronic device provided in an embodiment of the present application in an intermediate state, and fig. 3 is a schematic structural diagram of a foldable electronic device provided in an embodiment of the present application in a flattened state.

Referring to fig. 1 and 2, the foldable electronic device 100 may include at least a hinge assembly 30 and two middle frames, for example, a first middle frame 10 and a second middle frame 20, the first middle frame 10 and the second middle frame 20 being located at both sides of the hinge assembly 30, the first middle frame 10 and the second middle frame 20 being respectively connected to the hinge assembly 30, and in particular, the first middle frame 10 and the second middle frame 20 may be connected to a connector of the hinge assembly 30.

Also, the two middle frames are rotatably coupled by the hinge assembly 30 so that the two middle frames can be rotated relatively, that is, the first middle frame 10 and the second middle frame 20 can be rotated relatively.

Referring to fig. 1, the first middle frame 10 and the second middle frame 20 can be folded relatively to a closed state, and for example, when the first middle frame 10 and the second middle frame 20 are in the closed state, they can be completely folded to be parallel to each other (a slight deviation is also allowed), and at this time, the electronic device 100 is in the closed state, also called a folded state.

Referring to fig. 2, the first middle frame 10 and the second middle frame 20 can be relatively rotated (folded or unfolded) to an intermediate state, so that the electronic device 100 is in the intermediate state.

Referring to fig. 3, the first and second middle frames 10 and 20 can be relatively unfolded to an open state. Illustratively, the first middle frame 10 and the second middle frame 20 may be approximately 180 ° (some deviation is also allowed, for example, 165 °, 177 °, or 185 °) when they are in the open state, which is also called the flat state, of the electronic device.

The intermediate state shown in fig. 2 may be any state between the open state and the closed state. That is, the electronic device 100 may be switched between an open state (i.e., a flattened state) and a closed state (i.e., a folded state) by the movement of the hinge assembly 30.

In the embodiment of the present application, as shown in fig. 1 and fig. 3, when the electronic device 100 is in the flat state or the folded state, the width direction of the electronic device 100 is the x direction, the length direction of the electronic device 100 is the y direction, and the thickness direction of the electronic device 100 is the z direction.

It should be noted that the electronic device 100 may include only two middle frames, that is, the number of the first middle frame 10 and the second middle frame 20 may be one, so that when the electronic device 100 is in the folded state, the first middle frame 10 and the second middle frame 20 are folded into two layers relatively, as shown in fig. 1, the electronic device 100 includes one first middle frame 10, one second middle frame 20 and one hinge assembly 30, the first middle frame 10 and the second middle frame 20 are rotatably connected through the hinge assembly 30, and the first middle frame 10 and the second middle frame 20 are folded relatively, so that the electronic device 100 is in a two-layer form.

Alternatively, the electronic device 100 may include a plurality of middle frames, that is, the number of the first middle frame 10, the second middle frame 20 and the hinge assembly 30 may be multiple, and adjacent first middle frames 10 and second middle frames 20 are connected by one hinge assembly 30, so that the electronic device 100 may be folded into a multi-layer form. For example, the electronic device 100 may include two first middle frames, a second middle frame and two hinge assemblies, the two first middle frames are located at two sides of the second middle frame, and the two first middle frames are respectively rotatably connected to the second middle frame through one hinge assembly, one of the first middle frames may be folded relative to the second middle frame, and the other of the first middle frames may also be folded relative to the second middle frame, so that when the electronic device 100 is in the folded state, the first middle frame and the second middle frame are folded relative to each other into a three-layer configuration. When one of the first middle frames and the second middle frame are relatively unfolded to be in a flat state (e.g., they are approximately 180 °), the electronic device 100 is in the flat state.

Referring to fig. 2 and 3, the electronic device 100 may further include a foldable flexible display 40, wherein the flexible display 40 is disposed on the hinge assembly 30 and the two middle frames, and in particular, the flexible display 40 may be disposed on the same side surface of the first middle frame 10, the second middle frame 20 and the hinge assembly 30. When the first middle frame 10 and the second middle frame 20 are folded relatively, the flexible display screen 40 is attached to the first middle frame 10 and the second middle frame 20, a part of the flexible display screen 40 opposite to the hinge assembly 30 is bent, the hinge assembly 30 surrounds a Cheng Rongbing space 33, and the bent flexible display screen 40 is at least partially positioned in the screen accommodating space 33 (see fig. 13). When the first middle frame 10 and the second middle frame 20 are unfolded relatively, the flexible display screen 40 is also unfolded.

Wherein, for the foldable electronic device 100 in which the screen is folded inward, the flexible display screen 40 is disposed at the inner side surfaces of the first middle frame 10, the second middle frame 20, and the hinge assembly 30. For example, as shown in fig. 2 and 3, in the embodiment of the present application, the flexible display 40 is illustrated as being located on the inner side surfaces of the first middle frame 10, the second middle frame 20, and the hinge assembly 30. For the foldable electronic device 100 in which the screen is folded outward, the flexible display 40 is disposed at the outer side surfaces of the first and second middle frames 10 and 20 and the hinge assembly 30.

It should be noted that, when the electronic device 100 is in the folded state, two surfaces of the first middle frame 10 and the second middle frame 20 adjacent to and opposite to each other are inner side surfaces of the first middle frame 10 and the second middle frame 20, respectively, and a surface of the hinge assembly 30 on the same side as the inner side surfaces of the first middle frame 10 and the second middle frame 20 is an inner side surface of the hinge assembly 30. Two surfaces of the first middle frame 10 and the second middle frame 20, which face away from each other, are outer side surfaces of the first middle frame 10 and the second middle frame 20, respectively, and a surface of the hinge assembly 30 on the same side as the outer side surfaces of the first middle frame 10 and the second middle frame 20 is an outer side surface of the hinge assembly 30.

In some embodiments, the foldable electronic device 100 may also be a notebook computer, and the notebook computer may include a first middle frame and a second middle frame, which can be relatively folded to a closed state, so that the notebook computer is in the closed state (i.e., a folded state). Accordingly, when the first middle frame and the second middle frame are relatively unfolded from the folded state to the unfolded state, the notebook computer is in the unfolded state (i.e. the unfolded state). When the display device is in a flat state, at least part of the flexible display screen on the first middle frame can be used for displaying images and the like, and at least part of the flexible display screen on the second middle frame can be used as a virtual keyboard and the like.

In the embodiment of the present application, the first middle frame 10 may include a first middle plate and a first side frame, and the first side frame is surrounded on a peripheral edge of the first middle plate. The second middle frame 20 may also include a second middle plate and a second rim, which is provided around the outer peripheral edge of the second middle plate. The connection members 322 in the hinge assembly 30 may be connected to the first middle plate and the second middle plate, respectively.

Fig. 4 is a schematic diagram of an inner side structure of a hinge assembly in a flattened state according to an embodiment of the present disclosure, fig. 5 is a schematic diagram of an outer side structure of a hinge assembly in a flattened state according to an embodiment of the present disclosure, fig. 6 is a schematic diagram of a side view structure of a hinge assembly in a flattened state according to an embodiment of the present disclosure, fig. 7 is a schematic diagram of a side view structure of a hinge assembly in a folded state according to an embodiment of the present disclosure, fig. 8 is an enlarged partial structure diagram of fig. 5, and fig. 8a is a schematic diagram of a partial detachment of a hinge assembly according to an embodiment of the present disclosure.

Referring to fig. 4 and 5, the hinge assembly 30 may include a main shaft mechanism 31 and two rotation mechanisms disposed at both sides of the main shaft mechanism 31, the two rotation mechanisms being rotatably connected to the main shaft mechanism 31, respectively, so that the two rotation mechanisms can rotate relatively, and a connection member 322 of the rotation mechanism may be connected to a middle frame of the electronic device 100.

Among them, for example, referring to fig. 4 and 5, the two rotating mechanisms are a first rotating mechanism 32a and a second rotating mechanism 32b, respectively, and the first rotating mechanism 32a and the second rotating mechanism 32b are located on both sides of the main shaft mechanism 31. The first rotating mechanism 32a may be disposed adjacent to the first middle frame 10, and the first rotating mechanism 32a may be connected to the first middle frame 10, so that the first middle frame 10 may be rotatably engaged with the main shaft mechanism 31 through the first rotating mechanism 32 a. The second rotating mechanism 32b may be disposed adjacent to the second middle frame 20, and the second rotating mechanism 32b may be connected to the second middle frame 20, so that the second middle frame 20 may be rotatably engaged with the main shaft mechanism 31 through the second rotating mechanism 32 b.

For example, when the two middle frames are unfolded relatively, the two middle frames drive the two rotating mechanisms to unfold relatively, and when the electronic device 100 is in the flat state, the first rotating mechanism 32a, the second rotating mechanism 32b and the main shaft mechanism 31 are in the open state, for example, as shown in fig. 6, adjacent two of the first rotating mechanism 32a, the second rotating mechanism 32b and the main shaft mechanism 31 may be approximately 180 °, and at this time, the hinge assembly 30 is also in the flat state.

When the two middle frames are folded relatively, the two middle frames respectively drive the two rotating mechanisms to fold relatively, and when the electronic device 100 is in the folded state, as shown in fig. 7, the first rotating mechanism 32a and the second rotating mechanism 32b are folded to the closed state, and at this time, the hinge assembly 30 is also in the folded state.

Each of the rotating mechanisms includes an oscillating member 321 and a connecting member 322, and as shown in fig. 8, taking the first rotating mechanism 32a as an example, the first rotating mechanism 32a includes the oscillating member 321 and the connecting member 322. In particular, the connecting member 322 may be located at an end of the oscillating member 321 facing away from the spindle mechanism 31.

Among the two opposite ends of the oscillating element 321, the end closer to the main shaft mechanism 31 is the end of the oscillating element 321 facing the main shaft mechanism 31, and the end farther from the main shaft mechanism 31 is the end of the oscillating element 321 facing away from the main shaft mechanism 31. Accordingly, in the embodiments of the present application, an end (or side) facing a structural member means an end (or side) closer to the structural member, and an end (or side) facing away from the structural member means an end (or side) farther from the structural member.

It should be noted that the number of the oscillating members 321 and the connecting members 322 may be one or more, for example, each rotating mechanism includes three connecting members 322 and three oscillating members 321 (see fig. 5), the three connecting members 322 may be arranged at intervals along the axial direction of the main shaft mechanism 31, and correspondingly, the three oscillating members 321 may also be arranged at intervals along the axial direction of the main shaft mechanism 31.

As shown in fig. 8 and 8a, a first end 321a of the swing member 321 is rotatably connected to the main shaft mechanism 31, a second end 321b of the swing member 321 is rotatably connected to the connecting member 322, and the connecting member 322 can be fixedly connected to the first middle frame 10, so that the swing member 321 is rotatably connected to the main shaft mechanism 31, and the swing member 321 can drive the first middle frame 10 to rotate relative to the main shaft mechanism 31 through the connecting member 322, so that the two middle frames of the electronic device 100 can rotate relative to each other through the hinge assembly 30.

Since the hinge assembly 30 is formed by connecting the main shaft mechanism 31, the swing piece 321, the connecting piece 322 and other parts, the overall dimension chain is longer, and in order to meet the rotation requirement, most of the parts in the hinge assembly 30 are in rotational connection, so that more connection gaps and virtual positions exist among the parts of the swing piece 321, the connecting piece 322, the main shaft mechanism 31 and the like. When the foldable electronic device 100 is dropped or crashed, the positions of the components may be dislocated due to the gaps and the false positions in the hinge assembly 30, for example, the connecting member 322 is easily dislocated toward the spindle mechanism 31, which reduces the reliability of the foldable electronic device 100. Especially, when the electronic device 100 is in a folded state, the bent portion of the flexible display 40 is located in the screen accommodating space 33 formed by the hinge assembly 30, and the displacement of the connecting member 322 toward the spindle mechanism 31 easily results in the reduction of the screen accommodating space 33, damages to the flexible display 40, makes the flexible display 40 prone to fail, and greatly affects the reliability of the electronic device 100.

Fig. 9 is a partial structural diagram of the inside of a hinge assembly according to an embodiment of the present disclosure, where fig. 9 is a structural diagram of the inside of the hinge assembly with a support member removed, fig. 10 is a sectional partial structural diagram of an electronic device in a flattened state according to an embodiment of the present disclosure, fig. 11 is a sectional partial structural diagram of an electronic device in an intermediate state according to an embodiment of the present disclosure, fig. 12 is a sectional partial structural diagram of an electronic device in a folded state according to an embodiment of the present disclosure, and fig. 13 is a sectional front view of an electronic device in a folded state according to an embodiment of the present disclosure.

In the embodiment of the present application, referring to fig. 9, the first end of the swinging member 321 is rotatably connected to the spindle mechanism 31, and the second end of the swinging member 321 is rotatably connected to the connecting member 322. A sliding member 3211 is disposed on the swinging member 321, a sliding groove 3221 is disposed on the connecting member 322, and the sliding member 3211 is located in the sliding groove 3221 and is engaged with the sliding groove 3221.

Referring to fig. 10, the slot of the sliding groove 3221 faces the flexible display screen 40, the sliding groove 3221 extends from the side of the connecting member 322 facing the flexible display screen 40 to the side of the connecting member 322 facing away from the flexible display screen 40, that is, the sliding groove 3221 extends and is distributed in the thickness direction (z direction) of the connecting member 322, the sliding member 3211 can slide along the sliding groove 3221, and when the sliding member 3211 slides in the sliding groove 3221, the side of the sliding member 3211 facing away from the main shaft mechanism 31 abuts against an inner wall of the sliding groove 3221.

The shape of the sliding groove 3221 is not limited in the embodiment of the present application, and the sliding member 3211 can be accommodated under the condition that the connecting member 322 and the swinging member 321 are rotationally engaged, and the side of the sliding member 3211 facing away from the main shaft mechanism 31 is in contact with the inner wall of the sliding groove 3221.

Specifically, when the electronic device 100 is in a flattened state, as shown in fig. 10, the sliding element 3211 may be located in the sliding groove 3221 through the notch portion, and at the same time, one side of the sliding element 3211 facing away from the main shaft mechanism 31 abuts against an inner wall of one side of the sliding groove 3221 facing away from the main shaft mechanism 31, and the sliding element 3211 may support and abut against the connecting element 322, that is, the oscillating element 321 may support the connecting element 322 in an x direction in the drawing, so as to reduce a connection gap and a virtual position between the connecting element 322 and the oscillating element 321 in the x direction, thereby reducing or avoiding a play of the connecting element 322 in a direction toward the main shaft mechanism 31 in a scene such as a fall or a collision, and improving reliability of the electronic device 100.

Referring to fig. 11, in the process of folding the electronic device 100, the first middle frame drives the connecting member 322 to rotate, when the connecting member 322 rotates relative to the swinging member 321, the sliding member 3211 is in rotational fit with the sliding groove 3221, the sliding member 3211 can slide along the extending direction of the sliding groove 3221, and simultaneously, one side of the sliding member 3211 facing away from the main shaft mechanism 31 abuts against an inner wall of the sliding groove 3221 facing away from the main shaft mechanism 31, as shown in fig. 10 and 11, in the process of folding, the sliding member 3211 slides from the notch toward the bottom of the sliding groove 3221 along the extending direction of the sliding groove 3221.

Referring to fig. 12, when the electronic device 100 is in a folded state, the sliding member 3211 slides into the sliding groove 3221 and is integrally embedded in the sliding groove 3221. Similarly, the side of the sliding member 3211 facing away from the main shaft mechanism 31 is still abutted against the inner wall of the sliding groove 3221 facing away from the main shaft mechanism 31, and the sliding member 3211 supports the connecting member 322 in the x direction, so that the connection gap and the virtual position of the connecting member 322 and the swinging member 321 in the x direction are reduced, play of the connecting member 322 in a falling or collision scenario is reduced or avoided, and the reliability of the electronic device 100 is improved.

That is, the electronic device is in the folded state and the unfolded state, and in the process of switching between the states, one side of the sliding member 3211, which is away from the main shaft mechanism 31, abuts against the inner wall of the sliding groove 3221, so that the oscillating member 321 can perform an abutting and supporting function on the connecting member 322, a connection gap and a virtual position between the oscillating member 321 and the connecting member 322 are reduced, and a connection gap and a virtual position in the hinge assembly 30 are also reduced. In the process of dropping or colliding the electronic device 100, the sliding member 3211 of the swinging member 321 supports the sliding groove 3221 of the connecting member 322 in an abutting manner, so that the dislocation of the connecting member 322 towards the spindle mechanism 31 can be reduced or avoided, and the reliability of the electronic device 100 is improved.

In addition, when the electronic device 100 is in a folded state, the screen accommodating space 33 is prevented from being reduced due to the dislocation of the connecting member 322, so that the damage to the flexible display screen 40 in the process of falling or collision and the like is reduced or avoided, and the reliability of the electronic device 100 is further improved. Referring to fig. 13, when the electronic device 100 is in the folded state, the connecting member 322, the swinging member 321, and the spindle mechanism 31 are all used to form a screen accommodating space 33, and a portion of the flexible display screen 40 opposite to the hinge assembly 30 is bent and located in the screen accommodating space 33. When the sliding member 3211 is integrally inserted into the sliding groove 3221 in the folded state, the contact area between the sliding member 3211 and the sliding groove 3221 can be increased, and the supporting strength of the swinging member 321 to the connecting member 322 in the folded state can be increased. Therefore, the movement of the connecting piece 322 towards the direction of the spindle mechanism 31 can be further ensured to be avoided, and the influence on the Rong Bing space 33 when the electronic equipment 100 falls or collides and the like is reduced or avoided, so that the damage to the flexible display screen 40 bent in the Rong Bing space 33 is reduced, and the reliability of the electronic equipment 100 is further improved.

Fig. 14 is a schematic structural diagram of a connecting element according to an embodiment of the present disclosure, fig. 15 is a schematic structural diagram of a swinging element according to an embodiment of the present disclosure, fig. 15a is a partially detached schematic diagram of another hinge assembly according to an embodiment of the present disclosure, fig. 15b is a partially sectioned structural diagram of a hinge assembly according to an embodiment of the present disclosure at a sliding element when the hinge assembly is in a flattened state, fig. 16a is a schematic structural diagram of a swinging element and a connecting element when the hinge assembly according to an embodiment of the present disclosure is in a flattened state, fig. 16a is a partially sectioned structural diagram of a hinge assembly according to an embodiment of the present disclosure at an assembling groove when the hinge assembly is in a flattened state, fig. 16b is a partially sectioned structural diagram of a hinge assembly according to an embodiment of the present disclosure at an assembling groove when the hinge assembly is in a flattened state, fig. 16c is a partially sectioned structural diagram of a hinge assembly according to an embodiment of the present disclosure at an assembling groove when the hinge assembly is in a folded state, and fig. 17 is a schematic structural diagram of an assembly according to an embodiment of the present disclosure at an assembling element and a connecting element when the hinge assembly is in a folded state.

As shown in fig. 14 and 15, at least two opposite sliding grooves 3221 may be disposed on the connecting member 322, and sliding members 3211 may be disposed on end surfaces of opposite sides of the second end 321b of the swinging member 321. Specifically, the second end 321b is connected to an end of the connecting element 322 opposite to the main shaft mechanism 31, and a sliding groove 3221 (shown in fig. 11) may be disposed on a surface of the connecting element 322 facing the flexible display screen 40, so as to further promote an abutting supporting effect of the swinging element 321 on the connecting element 322, further reduce or avoid the play of the connecting element 322, and promote the reliability of the electronic device 100.

In addition, the second end 321b of the swinging member 321 is connected to the end of the connecting member 322 opposite to the spindle mechanism 31, so that the total connecting length of the connecting member 322 and the swinging member 321 in the x direction can be reduced, the width of the hinge assembly 30 can be reduced, and the light and thin design of the electronic device 100 can be facilitated.

As shown in fig. 15, the second end 321b of the swinging member 321 has a first rotating portion 3212, and the second end 321b of the swinging member 321 is rotatably connected to the connecting member 322 through the first rotating portion 3212. The first end 321a of the oscillating member 321 may have a second rotating portion 3213, and the first end 321a of the oscillating member 321 is rotatably connected to the spindle mechanism 31 through the second rotating portion 3213.

Specifically, the outer edges of the second rotating portion 3213 may have arc surfaces 3213a, the spindle mechanism 31 may have an arc portion 313 (see fig. 13) rotatably engaged with the arc surface 3213a, and the oscillating element 321 may be rotatably coupled to the spindle mechanism 31 by the arc surfaces 3213a and the arc portion 313.

For example, the main shaft mechanism 31 may include a main inner shaft 311 and a main outer shaft 312, the main inner shaft 311 and the main outer shaft 312 are connected to each other, an arc portion 313 may be defined between the main inner shaft 311 and the main outer shaft 312, and the arc surface 3213a of the second rotating portion 3213 may be located in the arc portion 313 and move along the arc portion.

As shown in fig. 15a and 15b, a side surface of the slider 3211 facing away from the spindle mechanism 31 is an abutting surface 3211a, and a side wall 3221a of the chute 3221 facing away from the spindle mechanism 31 abuts against the abutting surface 3211a, so that the swinging element 321 abuts against and supports the connecting element 322. Specifically, the abutting surface 3211a and the sidewall surface 3221a may both be arc-shaped surfaces, and the abutting surface 3211a and the sidewall surface 3221a have matching shapes. For example, as shown in fig. 15b, if the contact surface 3211a is an arc surface that protrudes toward the spindle mechanism 31, the side wall 3221a is also an arc surface that protrudes toward the spindle mechanism 31. This helps to increase the contact area between the sliding groove 3221 and the sliding member 3211, improve the abutting support strength, further improve the support strength of the swinging member 321 to the connecting member 322, help to further reduce the connection gap and the virtual position between the connecting member 322 and the swinging member 321, and improve the reliability of the electronic device 100.

Specifically, the sliding member 3211 may be a wedge-shaped block (see fig. 15), which refers to a structural member with two different thicknesses, wherein a thin end of the wedge-shaped block may be disposed adjacent to a bottom of the sliding groove 3221, so as to facilitate abutting and relative sliding between the sliding member 3211 and the sliding groove 3221. The sliding member 3211 is a wedge-shaped block, and when the sliding groove 3221 has a certain depth, the sliding member 3211 is a wedge-shaped block, which helps to increase the contact area between the sliding member 3211 and the sliding groove 3221, thereby improving the abutting support strength between the sliding member and the sliding groove, further reducing the connection gap and the virtual position in the hinge assembly 30, and improving the reliability of the electronic device 100.

Of course, in some examples, the sliding member 3211 may also be a square block, a cylinder, or the like. Alternatively, the shape of the slider 3211 may be other regular or irregular shapes.

In this embodiment, referring to fig. 14 and fig. 15a, a mounting groove 3222 may be formed on a surface of the connecting member 322 facing the flexible display screen 40, the mounting groove 3222 may at least include a first side wall 3222a and a second side wall 3222b opposite to each other, and the first side wall 3222a and the second side wall 3222b are respectively formed with the sliding groove 3221.

Referring to fig. 15a, the mounting groove 3222 further includes a third side wall 3222c, the third side wall 3222c is adjacent to the first side wall 3222a and the second side wall 3222b, the third side wall 3222c is located at an end of the connecting member 322 opposite to the main shaft mechanism 31, the second end 321b of the oscillating member 321 is rotatably disposed on the third side wall 3222c, the mounting groove 3222 further includes a bottom wall 3222d (see fig. 16 b), the first side wall 3222a, the second side wall 3222b and the third side wall 3222c are surrounded on the bottom wall 3222d, the mounting groove 3222 has an avoiding opening on a side opposite to the third side wall 3222c, and the mounting groove 3222 also has an avoiding opening on a side opposite to the bottom wall 3222d to avoid the oscillating member 321, so as to facilitate the rotation of the oscillating member 321.

As shown in fig. 16 and 16a, when the second end 321b of the swinging member 321 is rotatably engaged with the third side wall 3222c, end surfaces of two sides of the second end 321b may be abutted against the first side wall 3222a and the second side wall 3222b, so that the second end 321b can support the assembling groove 3222 in an abutting manner, that is, the swinging member 321 can support the connecting member 322 in the y direction, so as to reduce a connection gap and a virtual position of the connecting member 322 and the swinging member 321 in the y direction, reduce and avoid play of the connecting member 322 in the y direction in a situation that the electronic device 100 falls or collides, and further improve reliability of the electronic device 100.

For example, when the electronic device 100 is in a flattened state, referring to fig. 16b, the second end 321b of the swinging member 321 is partially located in the mounting groove 3222, the second end 321b is rotatably engaged with the third side wall 3222c, and as shown in fig. 16a, end surfaces of two sides of a portion where the second end 321b is engaged with the third side wall 3222c are respectively abutted against the first side wall 3222a and the second side wall 3222b, and the swinging member 321 can support the connecting member 322 in the y direction, so as to reduce a connection gap and a virtual position of the connecting member 322 in the y direction. Meanwhile, the sliding part 3211 on the oscillating piece 321 is partially located in the sliding groove 3221, and one side of the sliding part 3211 facing away from the spindle mechanism 31 abuts against an inner wall of the sliding groove 3221, so that the oscillating piece 321 can support the connecting piece 322 in the x direction, and a connection gap and an imaginary position of the two in the x direction are reduced.

During the rotation of the electronic device 100 from the flattened state to the folded state, as shown in fig. 16b and 16c, the second end 321b of the swinging member 321 can slide toward the bottom wall 3222d of the mounting groove 3222. When the electronic device 100 is in the folded state, as shown in fig. 16c and 17, the second end 321b may be embedded in the mounting groove 3222, and the end surfaces of the second end 321b on the opposite sides may still abut against the first side wall 3222a and the second side wall 3222b, respectively (see fig. 16 a), so that the swinging member 321 supports the connecting member 322 in the y direction. Meanwhile, the sliding member 3211 on the swinging member 321 is embedded in the sliding slot 3221, one side of the sliding member 3211 facing away from the main shaft mechanism 31 abuts against the inner wall of the sliding slot 3221, and the swinging member 321 supports the connecting member 322 in the x direction.

Fig. 18 is a partially broken away schematic view of yet another hinge assembly provided by an embodiment of the present application.

Referring to fig. 18, the third side wall 3222c has a connecting portion 3223, and the first rotating portion 3212 at the second end 321b of the swinging member 321 and the connecting portion 3223 can be rotatably connected by a first pin 325, so that the swinging member 321 and the connecting member 322 are rotatably connected.

Specifically, the first rotating portion 3212 may include a first rotating arm 3212a and a second rotating arm 3212b, wherein a gap is formed between the first rotating arm 3212a and the second rotating arm 3212 b. A first avoiding hole and a second avoiding hole are formed in the third side wall 3222c, the connecting portion 3223 is located on the outer wall surface of the third side wall 3222c, and the connecting portion 3223 is located between the first avoiding hole and the second avoiding hole.

The first rotating arm 3212a may have a first connecting hole, the second rotating arm 3212b may have a second connecting hole, and the connecting portion 3223 has a third connecting hole. When the swinging member 321 is disposed on the assembling groove 3222 through the first rotating portion 3212, after the first rotating arm 3212a and the second rotating arm 3212b respectively pass through the first avoiding hole and the second avoiding hole, the first pin 325 sequentially penetrates through the first connecting hole, the second connecting hole, and the third connecting hole, so that the first rotating arm 3212a and the second rotating arm 3212b are rotatably connected to the connecting portion 3223 through the first pin 325, and the swinging member 321 is rotatably connected to the connecting member 322. In this way, the connection position between the second end of the swing member 321 and the connection member 322 is further away from the spindle mechanism 31, which contributes to further reducing the total connection length of the connection member 322 and the swing member 321 in the x direction, reducing the width of the hinge assembly 30, and contributing to the light and thin design of the electronic device 100.

Fig. 18a is a partial structural schematic view of a hinge assembly provided in an embodiment of the present application, fig. 19 is a partial exploded schematic view of another hinge assembly provided in an embodiment of the present application, fig. 19a is an enlarged partial structural view of a cooperation between a link member and a connecting member provided in an embodiment of the present application, fig. 19b is a rear structural schematic view of a link member provided in an embodiment of the present application, fig. 19c is a sectional partial structural schematic view of a hinge assembly provided in an embodiment of the present application at the link member and the connecting member, fig. 20 is a front structural schematic view of a link member provided in an embodiment of the present application, and fig. 21 is a sectional structural schematic view of a hinge assembly provided in an embodiment of the present application at the link member.

In the embodiment of the present application, referring to fig. 18a, each rotating mechanism further includes at least one link 323, the number of the link 323 in each rotating mechanism may be one, or may be multiple, and the number of the link 323 may be consistent with the number of the connecting members 322 or the oscillating members 321, for example, when the number of the connecting members 322 is three (see fig. 5), the number of the link 323 may also be three.

As shown in fig. 19, one end of the link 323 is connected to the connecting member 322, and the other end of the link 323 is rotatably connected to the spindle mechanism 31. Specifically, the connecting member 322 may be provided with a positioning groove 3226, the positioning groove 3226 extends from an end of the connecting member 322 facing the main shaft mechanism 31 to an end of the connecting member 322 facing away from the main shaft mechanism 31, and one end of the linking member 323 may be inserted into the positioning groove 3226, so that the connecting member 322 is connected to the linking member 323, and when the connecting member 322 rotates relative to the main shaft mechanism 31, the linking member 323 is driven to rotate relative to the main shaft mechanism 31. One end of the link 323 is inserted into the coordination groove 3226, which is convenient for disassembly and assembly and easy to implement.

Specifically, as shown in fig. 19a and 19b, the outer walls of two sides of one end of the linking member 323 may be provided with an inserting component 323a, two opposite side walls of the coordination groove 3226 are provided with inserting grooves 3226a, as shown in fig. 19a and 19c, the inserting component 323a may be inserted into the inserting groove 3226a, and one end of the linking member 323 may be connected to the connecting component 322 by the inserting and mating of the inserting component 323a and the inserting groove 3226 a.

Since the positioning groove 3226 penetrates through the width direction (x direction) of the connecting element 322, the side of the link 323 facing away from the spindle mechanism 31 can be located at the end of the connecting element 322 facing away from the spindle mechanism 31, so that the connection between the link 323 and the connecting element 322 can be realized, the connection strength between the link 323 and the connecting element 322 can be enhanced, the total length between the link 323 and the connecting element 322 in the x direction can be reduced, the width of the hinge assembly 30 can be reduced, and the light and thin design of the electronic device 100 can be facilitated.

Referring to fig. 20, a gear portion 3231 may be provided at the other end of the link 323, and as shown in fig. 21, the gear portion 3231 may be rotatably connected to the spindle mechanism 31 by a rotating shaft 327.

In this case, two link members 323 respectively located in the two rotating mechanisms are rotationally connected through the main shaft mechanism 31, for example, as shown in fig. 21, the link member in the first rotating mechanism 32a is a first link member 3230a, the link member in the second rotating mechanism 32b is a second link member 323b, and the first link member 3230a and the second link member 323b are rotationally connected through the main shaft mechanism 31. When the first middle frame 10 is rotated, the first middle frame 10 drives the connecting member 322a in the first rotating mechanism 32a to rotate, the connecting member 322a drives the first linkage member 3230a to rotate relative to the main shaft mechanism 31, and further the first linkage member 3230a drives the second linkage member 323b to rotate relative to the main shaft mechanism 31. The second linking member 323b can drive the second middle frame 20 to rotate through the connecting member 322b in the second rotating mechanism 32b, so as to realize the linkage between the first middle frame 10 and the second middle frame 20, and enable the first middle frame 10 and the second middle frame 20 to rotate synchronously. When unfolding or folding electronic equipment 100 like this, only need drive wherein one side center rotate just can drive the opposite side center and rotate, realize folding or the expansion of electronic equipment 100, it is more convenient to operate, helps promoting to use and experiences.

Specifically, as shown in fig. 21, a gear assembly 314 may be disposed in the spindle mechanism 31, and a gear portion 3231 of the link 323 may be engaged with the gear assembly 314, such that when the first link 3230a rotates relative to the spindle mechanism 31, the first link 3230a drives the gear assembly 314 to rotate through the gear portion 3231, and further drives the second link 323b to rotate through the gear assembly 314.

Here, as shown in fig. 21, a gear structure 3231a may be provided only on a portion of an outer surface of the gear portion 3231 of the link 323. Alternatively, in some examples, a tooth structure may be provided on an outer surface of the entire gear portion 3231.

Fig. 22 is a partially disassembled schematic view of another hinge assembly provided by the embodiment of the present application, and fig. 23 is an assembled schematic view of a supporting member and a linkage member provided by the embodiment of the present application.

In the embodiment of the present application, referring to fig. 22, each rotating mechanism further includes a supporting member 324, and one end of the supporting member 324 is disposed adjacent to the main shaft mechanism 31 (see fig. 8), wherein the supporting member 324 may be located on a side of the swinging member 321, the linking member 323 adjacent to the flexible display screen 40, and the connecting member 322 is located on an end of the supporting member 324 facing away from the main shaft mechanism 31.

The connecting member 322 is rotatably connected to the supporting member 324, and when the connecting member 322 rotates, the connecting member 322 first rotates relative to the supporting member 324, so as to drive the supporting member 324 to rotate relative to the spindle mechanism 31. The connecting member 322, the swinging member 321, and the supporting member 324 together form a screen accommodating space 33 (shown in fig. 13) for accommodating the flexible display screen 40.

The support 324 may be a support door plate extending along the axial direction of the spindle mechanism 31. Each of the rotating mechanisms may include a support 324, and the support 324 may be a single support panel, or the support 324 may be formed by joining a plurality of panels.

Specifically, referring to fig. 22, a plurality of arc-shaped rail members 3241 may be disposed on the supporting member 324, arc-shaped rail grooves 3227 are disposed at two ends of the connecting member 322, and the arc-shaped rail members 3241 may be inserted into the arc-shaped rail grooves 3227 and slide along the arc-shaped rail grooves 3227, so that the arc-shaped rail members 3241 and the arc-shaped rail grooves 3227 are rotatably engaged, and the supporting member 324 and the connecting member 322 are rotatably connected through the engagement of the arc-shaped rail members 3241 and the arc-shaped rail grooves 3227.

The linkage 323 and the support 324 are rotatably connected, so that the movement redundancy of the support 324 can be reduced, the setting gap and the virtual position of the support 324 are reduced, the connection gap and the virtual position in the hinge assembly 30 are further reduced, and the reliability of the electronic device 100 is improved.

Referring to fig. 22 and 23, an arc-shaped track groove 3242 may be provided on the supporting member 324, the second pin 326 may be inserted into the arc-shaped track groove 3242 and move along the arc-shaped track groove 3242, and the link 323 may be connected to the second pin 326, so that the link 323 and the supporting member 324 may be rotatably connected by the engagement of the second pin 326 and the arc-shaped track groove 3242.

Specifically, one end of the link 323 may include a first connection arm 3232a and a second connection arm 3232b, a gap is formed between the first connection arm 3232a and the second connection arm 3232b, as shown in fig. 23, the arc-shaped track groove 3242 is located between the first connection arm 3232a and the second connection arm 3232b, fourth connection holes are respectively formed in the first connection arm 3232a and the second connection arm 3232b, a middle section of the second pin 326 is inserted into the arc-shaped track groove 3242, and two ends of the second pin 326 are respectively inserted into the fourth connection holes, so that the link 323 and the support 324 are rotatably connected through the second pin 326 and the arc-shaped track groove 3242, which is convenient to implement and detach and install.

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

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

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

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present application, and are not limited thereto; although the embodiments of the present application have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A foldable electronic device, comprising: the display screen comprises a flexible display screen (40), a hinge assembly (30) and two middle frames positioned at two sides of the hinge assembly (30), wherein the two middle frames are rotatably connected through the hinge assembly (30), and the flexible display screen (40) is laid on the hinge assembly (30) and the middle frames;

the hinge assembly (30) comprises a main shaft mechanism (31) and two rotating mechanisms positioned on two sides of the main shaft mechanism (31), and the two rotating mechanisms are respectively connected with the main shaft mechanism (31) in a rotating way;

each rotating mechanism comprises at least one swinging piece (321) and at least one connecting piece (322), the first end of each swinging piece (321) is rotatably connected with the main shaft mechanism (31), the second end of each swinging piece (321) is rotatably connected with the connecting piece (322), and the connecting piece (322) is connected with the middle frame;

a sliding groove (3221) is arranged on the connecting piece (322), a notch of the sliding groove (3221) faces the flexible display screen (40), and the sliding groove (3221) extends from one side, facing the flexible display screen (40), of the connecting piece (322) to one side, facing away from the flexible display screen (40), of the connecting piece (322); a sliding piece (3211) matched with the sliding groove (3221) is arranged on the swinging piece (321), and one side of the sliding piece (3211) back to the main shaft mechanism (31) is abutted against the inner wall of the sliding groove (3221);

when the electronic device is in a flattened state, the sliding piece (3211) is partially positioned in the sliding groove (3221) through the notch; when the electronic device is folded, the sliding part (3211) slides along the extending direction of the sliding groove (3221), and when the electronic device is in a folded state, the sliding part (3211) is embedded in the sliding groove (3221).

2. The foldable electronic device according to claim 1, characterized in that the second end is connected to an end of the connecting member (322) facing away from the spindle mechanism (31);

two opposite sliding grooves (3221) are formed in one surface, facing the flexible display screen (40), of the connecting piece (322), and the sliding pieces (3211) are arranged on the end faces of two opposite sides of the second end.

3. The foldable electronic device according to claim 2, wherein a mounting groove (3222) is formed in a face of the connecting member (322) facing the flexible display screen (40), the mounting groove (3222) at least includes a first side wall (3222 a) and a second side wall (3222 b) which are opposite to each other, and the first side wall (3222 a) and the second side wall (3222 b) are respectively formed with the sliding groove (3221);

the assembling groove (3222) further includes a third side wall (3222 c) adjacent to the first side wall (3222 a) and the second side wall (3222 b), the third side wall (3222 c) is located at one end of the connecting member (322) facing away from the main shaft mechanism (31), the second end is rotatably disposed on the third side wall (3222 c), and end surfaces of two sides of the second end are abutted to the first side wall (3222 a) and the second side wall (3222 b), respectively.

4. The foldable electronic device of claim 3, further comprising a first pin (325), wherein the second end has a first rotating portion (3212), the third sidewall (3222 c) has a connecting portion (3223), and the first rotating portion (3212) and the connecting portion (3223) are rotatably connected by the first pin (325).

5. The foldable electronic device of claim 4, wherein the first rotating portion (3212) comprises a first rotating arm (3212 a) and a second rotating arm (3212 b), the first rotating arm (3212 a) and the second rotating arm (3212 b) having a gap therebetween;

seted up first hole of dodging and the second hole of dodging on third lateral wall (3222 c), connecting portion (3223) are located on the outer wall of third lateral wall (3222 c), just connecting portion (3223) are located first hole of dodging with between the second hole of dodging, first swivel arm (3212 a) with second swivel arm (3212 b) wear to establish respectively on first hole of dodging with the second hole of dodging, first swivel arm (3212 a) with second swivel arm (3212 b) passes through first round pin axle (325) with connecting portion (3223) rotate and link to each other.

6. The foldable electronic device according to any of the claims 1 to 5, wherein a side of the slider (3211) facing away from the spindle mechanism (31) forms an abutting surface (3211 a), and a side of the chute (3221) facing away from the spindle mechanism (31) abuts against the abutting surface (3211 a);

the abutting joint surface (3211 a) and the side wall surface are both arc-shaped surfaces, and the shape of the side wall surface is matched with that of the abutting joint surface (3211 a).

7. The foldable electronic device of any of claims 1 to 6, wherein said slider (3211) is a wedge-shaped block with a thin end disposed adjacent a bottom of said slot (3221).

8. The foldable electronic device according to any of the claims 1 to 7, wherein the first end has a second rotating portion (3213), the outer edges of the second rotating portion (3213) at two sides have arc surfaces (3213 a), the spindle mechanism (31) has an arc portion (313) therein, which is rotatably engaged with the arc surfaces (3213 a), and the swinging member (321) is rotatably connected to the spindle mechanism (31) through the second rotating portion (3213).

9. The foldable electronic device of any of claims 1 to 8, wherein each of said turning mechanisms further comprises at least one linkage member (323);

one end of each linkage piece (323) is connected with the connecting piece (322), the other end of each linkage piece (323) is rotationally connected with the main shaft mechanism (31), and the two linkage pieces (323) respectively positioned in the two rotating mechanisms are rotationally connected through the main shaft mechanism (31), so that one linkage piece (323) drives the other linkage piece (323) to rotate relative to the main shaft mechanism (31) when rotating relative to the main shaft mechanism (31).

10. The foldable electronic device according to claim 9, wherein the connecting member (322) has a positioning groove (3226) formed thereon, the positioning groove (3226) extends from an end of the connecting member (322) facing the spindle mechanism (31) to an end of the connecting member (322) facing away from the spindle mechanism (31), and an end of the link member (323) is inserted into the positioning groove (3226).

11. The foldable electronic device according to claim 9 or 10, wherein the spindle mechanism (31) comprises a gear assembly (314), the other end of the linkage (323) has a gear portion (3231), the gear portion (3231) is rotatably connected to the spindle mechanism (31), and the gear portion (3231) is engaged with the gear assembly (314).

12. The foldable electronic device according to any of claims 1 to 8, wherein each of the rotating mechanisms further comprises a support member (324), one end of the support member (324) is disposed adjacent to the spindle mechanism (31), the connecting member (322) is disposed at an end of the support member (324) facing away from the spindle mechanism (31), and the connecting member (322) is rotatably connected to the support member (324).

13. The foldable electronic device according to claim 12, wherein an arc-shaped rail member (3241) is disposed on the supporting member (324), arc-shaped rail grooves (3227) are disposed at two ends of the connecting member (322), the arc-shaped rail member (3241) is rotatably engaged with the arc-shaped rail grooves (3227), and the supporting member (324) and the connecting member (322) are rotatably connected through engagement between the arc-shaped rail grooves (3227) and the arc-shaped rail member (3241).

14. The foldable electronic device according to claim 12 or 13, wherein the rotating mechanism further comprises at least one link member (323), one end of the link member (323) is connected to the connecting member (322), the other end of the link member (323) is rotatably connected to the spindle mechanism (31), and two link members (323) in the two rotating mechanisms are rotatably connected to each other through the spindle mechanism (31) so that one of the link members (323) rotates relative to the spindle mechanism (31) to drive the other link member (323) to rotate relative to the spindle mechanism (31);

the linkage member (323) is rotatably connected to the support member (324).

15. The foldable electronic device of claim 14, further comprising a second pin (326), wherein the supporting member (324) is provided with an arc-shaped track groove (3242), the second pin (326) is inserted into the arc-shaped track groove (3242) and moves along the arc-shaped track groove (3242), and the second pin (326) is connected to the linkage member (323).