CN114338865A - Folding device and foldable electronic equipment - Google Patents

Abstract

The embodiment of the application provides a folding device and collapsible electronic equipment, this folding device includes the main shaft, first structure, the second structure, first structure and second structure pass through the hinge subassembly and are connected with the main shaft rotation, when first structure and second structure move in opposite directions to fold condition, the first screen backplate of main shaft and hinge subassembly, the head rod, second connecting rod and second screen backplate form jointly and are used for holding the appearance screen space of flexible screen, can satisfy the demand that holds of flexible screen after folding. When first structure and second structure spare moved far away to the state of expanding mutually back on the other hand, the one end that flexible screen was kept away from to first structure spare takes place to be close to the removal of main shaft, and the one end that flexible screen was kept away from to the second structure spare also can be close to the main shaft and remove, realizes keeping away from the regulation of the length of flexible screen one side to first structure spare and second structure spare, has avoided pulling flexible screen at the in-process that expandes to the damage of folding or expansion in-process to flexible screen has been avoided.

Description

Folding device and foldable electronic equipment

Technical Field

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

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 display screen of the foldable electronic equipment can flexibly change and switch modes according to different use scenes, and simultaneously has high screen occupation ratio and definition.

At present, a foldable electronic device generally includes a first structural component, a second structural component, a rotating shaft, and a hinge structure, and specifically, the first structural component and the second structural component are respectively rotatably connected to the rotating shaft through the hinge structure, so that the first structural component and the second structural component can relatively rotate, and folding or unfolding of the first structural component and the second structural component is achieved. The flexible display screen covers on first structure, second structure and pivot, and first structure and second structure relative rotation are the extended state to the coplanar, and the flexible display screen also expandes thereupon, and when first structure rotated in opposite directions and folded relatively and be folded state, the flexible display screen also folded setting is between first structure and second structure.

However, in the folding or unfolding process of the foldable electronic device, the flexible display screen is pulled or squeezed by an external force, and thus the flexible display screen is easily damaged.

Disclosure of Invention

The application provides a folding device and foldable electronic equipment, has solved current foldable electronic equipment folding and expansion in-process, and the flexible screen can receive the extrusion or drag the problem that leads to the flexible screen damage because of the exogenic force.

A first aspect of the embodiments of the present application provides a folding apparatus applied to a foldable electronic device, including a main shaft, a first structural member and a second structural member located at two sides of the main shaft, and the first structural member and the second structural member are rotatably connected to the main shaft through a hinge assembly, so that the first structural member and the second structural member are relatively folded or unfolded;

the hinge assembly comprises a first swing wing connecting rod and a second swing wing connecting rod which are positioned on two sides of the main shaft, a first connecting rod and a second connecting rod which are positioned on two sides of the main shaft, and a first screen back plate and a second screen back plate which are positioned on two sides of the main shaft, wherein the first swing wing connecting rod and the second swing wing connecting rod comprise sliding ends, rotating ends and pushing ends;

the sliding end of the first swing wing connecting rod is connected with the first structural member in a sliding mode, the rotating end of the first swing wing connecting rod is connected with the main shaft in a rotating mode, the pushing end of the first swing wing connecting rod is connected with the first end of the first connecting rod in a rotating mode, the second end of the first connecting rod is connected with the first end of the first screen back plate in a rotating mode, the second end of the first screen back plate is connected with the second structural member in a rotating mode, and the rotating axis of the pushing end is different from that of the rotating end;

the sliding end of the second swing wing connecting rod is connected with the second structural member in a sliding mode, the rotating end of the second swing wing connecting rod is connected with the main shaft in a rotating mode, and the pushing end of the second swing wing connecting rod is connected with the first end of the second connecting rod in a rotating mode; the second end of the second connecting rod is rotatably connected with the first end of the second screen back plate, the second end of the second screen back plate is rotatably connected with the first structural member, and the rotating axis of the pushing end is different from that of the rotating end.

By adopting the scheme, when the first structural member and the second structural member are folded or unfolded relatively, the length of the flexible screen supported by the folding device is kept basically constant and cannot be excessively stretched or extruded, so that the reliability of the flexible screen and the foldable electronic equipment is ensured. Particularly, this scheme can promote the first connecting rod through the first swing wing connecting rod of hinge subassembly, and the first connecting rod drives the removal of first screen backplate to under fold condition, folding device can form the accommodation space who holds the flexible screen, and under the expansion state, folding device can level and smooth support the flexible screen.

In a possible embodiment, when the first structural member and the second structural member rotate in opposite directions to a folded state, the sliding end of the first swing wing connecting rod slides towards the end of the first structural member far away from the main shaft, the pushing end of the first swing wing connecting rod pushes the first connecting rod, so that the first connecting rod drives the first screen backboard to move to a first position, the sliding end of the second swing wing connecting rod slides towards the end of the second structural member far away from the main shaft, the pushing end of the second swing wing connecting rod pushes the second connecting rod, the second connecting rod drives the second screen backboard to move to a second position, and the first screen backboard, the first connecting rod, the second screen backboard, the second connecting rod and the main shaft jointly form a screen accommodating space for accommodating the flexible screen, the flexible screen folding device can meet the containing requirement of the flexible screen after folding, and can reduce the occurrence of phenomena such as excessive extrusion of the flexible screen when folding.

In one possible embodiment, when the first and second structural members are moved away from each other to the deployed state, the sliding end of the first swing wing connecting rod slides towards one end of the first structural member close to the main shaft, the pushing end of the first swing wing connecting rod pulls the first connecting rod, so that the first connecting rod drives the first screen backboard to move to a third position, the sliding end of the second swing wing connecting rod slides towards one end of the second structural member close to the main shaft, and the pushing end of the second swing wing connecting rod pulls the second connecting rod, so that the second connecting rod drives the second screen backboard to move to a fourth position, the first screen backboard and the second screen backboard are positioned on the same plane, the flexible screen is laid on the first screen backboard, the second screen backboard and the main shaft.

Because the sliding end of the first swing wing connecting rod slides towards the end, close to the main shaft, of the first structural member, the end, far away from the flexible screen, of the first structural member also moves close to the main shaft while the first structural member rotates relative to the main shaft, and similarly, the end, far away from the flexible screen, of the second structural member also moves close to the main shaft while the second structural member rotates relative to the main shaft, so that the length, far away from the flexible screen, of the first structural member and the second structural member (the length of a fit line formed by connecting lines of the end, far away from the main shaft, of the first structural member and the end, far away from the main shaft, of the second structural member) is adjusted, and therefore, the length, close to the flexible screen, of the first structural member and the second structural member (the length of the fit line formed by connecting lines of the end, far away from the main shaft, of the first structural member and the end, far away from the main shaft, of the second structural member, on the side, close to the flexible screen) is basically unchanged in the folded state and the unfolded state, therefore, the length of the flexible screen in the folded state is equal to that of the flexible screen in the unfolded state, and pulling of the flexible screen in the unfolding process is effectively avoided.

In a possible embodiment, when the first structural member and the second structural member are moved away from each other to the unfolded state, an end of the first structural member away from the flexible screen and an end of the second structural member away from the flexible screen abut against each other, and the main shaft is located in the first structural member and the second structural member. When the first structural member and the second structural member move to the unfolding state, one end of the first structural member, which is far away from the flexible screen, is abutted against one end of the second structural member, which is far away from the flexible screen, so that the main shaft can be positioned in the first structural member. Therefore, the hinge assembly (spindle) is shielded through the first structural part and the second structural part, when the hinge assembly is in an unfolded state, the spindle is accommodated and hidden in the first structural part and the second structural part, the spindle cannot be seen, the integration of the appearance shell of the electronic equipment is promoted, the attractiveness of the electronic equipment is improved, and meanwhile, the dustproof and waterproof performance of the electronic equipment can be provided.

In a possible embodiment, when the first screen backboard is located at the first position, the first end of the first screen backboard is close to the surface of the second structural member, which faces away from the flexible screen;

work as the second screen backplate is located during the second position, the first end orientation of second screen backplate first structure deviates from the one side of flexible screen is close to, and when first structure and second structure were in fold condition, the cross-section of first screen backplate and second screen backplate can be type splayed like this, can increase the area that can hold of holding the screen space like this, makes the flexible screen can be the drop form and sets up in holding the screen space, further reduces when folding to the extruded probability of flexible screen.

In a possible implementation manner, the cross sections of the first connecting rod and the second connecting rod are in a V shape, so that the connection between the first swing wing connecting rod and the first screen backboard can be conveniently realized through the first connecting rod, and the connection between the second swing wing connecting rod and the second screen backboard can be conveniently realized through the second connecting rod.

When the first screen backboard is located at the first position, the second end of the first connecting rod approaches towards one side of the second structural member, which deviates from the flexible screen;

when the second screen backboard is located at the second position, the second end of the second connecting rod faces the side, away from the flexible screen, of the first structural member to be close to the first structural member, the screen accommodating space can be further increased, and the probability of squeezing the flexible screen when the flexible screen is folded is reduced.

In a possible embodiment, the first connecting rod is slidably connected with the second swing wing connecting rod;

the second connecting rod is connected with the first swing wing connecting rod in a sliding mode. The linkage between the first structural member and the second structural member can be enhanced, and the folding or unfolding smoothness and smoothness of the electronic equipment are improved.

In a possible embodiment, a first guide rail is arranged on one of two opposite side surfaces of the first connecting rod and the second swing wing connecting rod, and a first sliding part is arranged on the other side surface of the first connecting rod and the second swing wing connecting rod, and the first sliding part slides in the first guide rail, so that the sliding connection between the first connecting rod and the second swing wing connecting rod is realized through the sliding relationship between the first sliding part and the first guide rail.

And a second guide rail is arranged on one side surface of two opposite side surfaces of the second connecting rod and the first swing wing connecting rod, a second sliding part is arranged on the other side surface of the two opposite side surfaces, and the second sliding part slides in the second guide rail, so that the sliding connection between the second connecting rod and the second swing wing connecting rod is realized through the sliding relation between the second sliding part and the second guide rail.

In a possible implementation mode, the first swing wing connecting rod is connected with the second screen backboard in a sliding mode;

the second swing wing connecting rod is connected with the first screen backboard in a sliding mode. The linkage between the first structural member and the second structural member can be enhanced, and the folding or unfolding smoothness and smoothness of the electronic equipment are improved.

In a possible embodiment, a third guide rail is provided on one of two opposite side surfaces of the first swing link and the second screen backboard, and a third sliding member is provided on the other side surface of the first swing link and the second screen backboard, and the third sliding member slides in the third guide rail. Therefore, the sliding connection between the first swing wing connecting rod and the second screen backboard is realized through the sliding relation between the third sliding piece and the third guide rail piece.

And a fourth guide rail is arranged on one of two opposite side surfaces of the second swing wing connecting rod and the first screen back plate, a fourth sliding part is arranged on the other side surface, and the fourth sliding part slides in the fourth guide rail. Therefore, the sliding connection between the second swing wing connecting rod and the first screen back plate is realized through the sliding relation between the fourth sliding piece and the fourth guide rail.

In one possible embodiment, the first swing link and the second swing link are respectively arranged in a staggered manner in a direction parallel to the axis of the main shaft. Therefore, the first swing wing connecting rod and the second swing wing connecting rod cannot interfere with each other in the rotating process, and the folding or unfolding stability of the first structural member and the second structural member is guaranteed. In addition, the first swing wing connecting rod and the second swing wing connecting rod are arranged in a staggered mode, the occupied space of the hinge assembly in the spindle can be saved, and the spindle shell can be shielded favorably.

A second aspect of the embodiments of the present application provides a foldable electronic device, including a first housing, a second housing, and any one of the folding apparatuses described above;

the first shell and the second shell are positioned on two sides of the main shaft, the first shell is fixedly connected with the first structural member, and the second shell is fixedly connected with the second structural member;

the folding device further comprises a flexible screen, and the flexible screen covers the folding device, the first shell and the second shell.

Folding or expansion mutually through first structure and second structure, can drive first casing and second casing folding mutually or expand, and when first structure and second structure move in opposite directions to fold condition, the first screen backplate of main shaft and hinge subassembly, the head rod, second connecting rod and second screen backplate form jointly and are used for holding the appearance screen space of flexible screen, can satisfy the demand that holds of flexible screen after folding, can reduce the emergence of phenomenon such as excessively extrudeing the flexible screen when folding. When the first structural member and the second structural member are moved back and forth to an unfolded state, the sliding end of the first swing wing connecting rod of the hinge assembly slides towards one end, close to the main shaft, of the first structural member, so that one end, far away from the flexible screen, of the first structural member moves close to the main shaft, and similarly, one end, far away from the flexible screen, of the second structural member also moves close to the main shaft, so that the length of one side, far away from the flexible screen, of the first structural member and the second structural member (the length of a fit line formed by connecting lines of one end, far away from the main shaft, of the first structural member and one end, far away from the main shaft, of the second structural member on one side, far away from the flexible screen) is adjusted, and the length of one side, close to the flexible screen, of the first structural member and the second structural member (the length of the fit line formed by connecting lines of one end, far away from the main shaft, of the second structural member on one side, close to the flexible screen) is basically unchanged in a folded state and an unfolded state, therefore, the length of the flexible screen in the folded state is equal to that of the flexible screen in the unfolded state, and pulling of the flexible screen in the unfolding process is effectively avoided. The damage to the flexible screen in the folding or unfolding process of the electronic equipment is avoided, the display effect of the electronic equipment is improved, and the service life of the electronic equipment is prolonged.

Drawings

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

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

fig. 3 is a schematic diagram of an internal structure of a folding device in an unfolded state of a foldable electronic device according to an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a folding device according to an embodiment of the present disclosure when the folding device is unfolded at 45 degrees;

FIG. 5 is a schematic diagram of an internal structure of a folding device according to an embodiment of the present disclosure when the folding device is unfolded at 45 degrees;

fig. 6 is a schematic diagram illustrating a disassembled structure of a folding device according to an embodiment of the present application;

FIG. 7 is a schematic cross-sectional view of a folding apparatus according to an embodiment of the present disclosure in a folded state;

FIG. 8 is a schematic cross-sectional view of a 45 degree deployment of a folding device according to an embodiment of the present application;

FIG. 9 is a schematic cross-sectional view of a folding device according to an embodiment of the present disclosure in an unfolded state;

FIG. 10 is a schematic diagram of a folding device according to an embodiment of the present disclosure showing the length change of the folding device during folding and unfolding

Fig. 11 is a schematic cross-sectional view of another folding device provided in an embodiment of the present application in a folded state.

Description of reference numerals:

100-an electronic device; 10-a first housing; 20-a second housing;

30-a folding device; 31-a main shaft; 311-a rotating shaft;

32-a first structural member; 33-a second structural member; 331-sixth fixation hole;

34-a hinge assembly; 341-first swing link; 3411-a third guide rail;

3412-a first fixing hole; 342-a second swing wing link; 343-a first connecting rod;

3431-a first guide rail; 3432-third fixing hole; 344-a second connecting rod;

345-a first screen backplane; 3451-connector 346-second screen backboard;

40-flexible screen.

Detailed Description

The terminology used in the description of the embodiments section 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 present application.

The display mode of the original display equipment is broken through by the appearance of the flexible screen foldable terminal electronic equipment, the information interaction efficiency can be improved in multiples by simple folding, the information interaction mode can be completely subverted by the design of multiple folding, scroll type and the like in the future, the folding electronic display screen can flexibly change the switching mode according to different use scenes, and meanwhile, the high screen occupation ratio and the definition which can be provided become the hot spots of research of people gradually.

The foldable electronic device takes a state of being foldable into two layers as an example, and comprises a first structural member, a second structural member, a rotating shaft and a hinge structure, wherein the first structural member and the second structural member are respectively connected with the rotating shaft in a rotating manner through the hinge structure, so that the first structural member and the second structural member can be folded and unfolded, the flexible screen usually covers the first structural member, the second structural member and the rotating shaft, when the first structural member and the second structural member rotate in opposite directions to the folded state, the flexible screen is folded between the first structural member and the second structural member, and when the first structural member and the second structural member move in opposite directions to the unfolded state, the flexible screen is also unfolded along with the first structural member and the second structural member.

However, because the rotation radius and the track of the components at different positions in the folding process are different, the length of the flexible screen in the folding or unfolding state changes, for example, in the folding screen device folded in, the flexible screen is located inside the electronic device, when the flexible screen is in the folding state, the length of the shell close to one side of the flexible screen is smaller than the length of the shell far away from one side of the flexible screen (the length of the shell refers to the arc length from the end of the first structural member far away from the rotating shaft to the end of the second structural member far away from the rotating shaft), when the flexible screen moves from the back to the unfolding state, the change of the length of the shell can generate a pulling force on the flexible screen, and when the flexible screen moves from the opposite direction to the folding state, the flexible screen may be excessively squeezed in the folding process, and all damage may be caused on the flexible screen.

In the prior art, the length change in the folding and unfolding processes is usually compensated by sliding the flexible screen, but the sliding of the screen reduces the reliability of the flexible screen.

Based on the technical problem, the embodiment of the application provides a folding device and foldable electronic equipment, folding device's first structure and second structure pass through the hinge subassembly and are connected with the main shaft rotation, thereby make first structure and second structure folding mutually or expand, when first structure and second structure move in opposite directions to fold condition, the first screen backplate of main shaft and hinge subassembly, the first connecting rod, second connecting rod and second screen backplate form jointly and are used for holding the appearance screen space of flexible screen, can satisfy the demand that holds of flexible screen after folding, can reduce the emergence of phenomenon such as excessively extrudeing the flexible screen when folding. When the first structural member and the second structural member are moved back and forth to an unfolded state, the flexible screen is laid on the main shaft, the first screen back plate and the second screen back plate, and the sliding end of the first swing wing connecting rod of the hinge assembly slides towards the end, close to the main shaft, of the first structural member, so that the end, far away from the flexible screen, of the first structural member moves close to the main shaft, and similarly, the end, far away from the flexible screen, of the second structural member also moves close to the main shaft, so that the length, far away from the flexible screen, of the first structural member and the second structural member (the length of a fit line formed by connecting the end, far away from the main shaft, of the first structural member and the end, far away from the main shaft, of the second structural member on one side far away from the flexible screen) can be adjusted, and the lengths, near the flexible screen, of the first structural member and the second structural member (the end, far away from the main shaft, of the first structural member) on one side away from the main shaft can be adjusted in a folded state and an unfolded state, The length of a fitting line formed by connecting the main shaft and one end, far away from the main shaft, of the second structural member on one side close to the flexible screen is basically unchanged), so that the length of the flexible screen in a folded state is equal to that of the flexible screen in an unfolded state, and the flexible screen is effectively prevented from being dragged in the unfolding process. Thereby avoiding damage to the flexible screen during folding or unfolding.

The 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.

The following describes in detail a folding device and a foldable device provided in the embodiments of the present application, taking the electronic device as a mobile phone with a folding screen as an example.

Referring to fig. 1 to 3, the folding screen mobile phone may include a first housing 10, a second housing 20, and a folding device 30, wherein the folding device 30 includes a main shaft 31 and a first structural member 32 and a second structural member 33 located at both sides of the main shaft 31, and specifically, as shown in fig. 4, the first structural member 32 and the second structural member 33 are located at both sides of an axis of the main shaft 31, and the first structural member 32 and the second structural member 33 may be rotatably connected to the main shaft 31 by a hinge assembly 34, so that the first structural member 32 and the second structural member 33 are folded or unfolded.

Referring to fig. 3, the first housing 10 and the second housing 20 are located on two sides of the main shaft 31, the first housing 10 is fixedly connected to the first structural member 32, the second housing 20 is fixedly connected to the second structural member 33, and when the first structural member 32 and the second structural member 33 are folded or unfolded, the first housing 10 and the second housing 20 are driven to be folded or unfolded.

When the first structural member 32 and the second structural member 33 move to the stack, that is, the first casing 10 and the second casing 20 move to the stack, the electronic device 100 is in the folded state (as shown in fig. 1), and conversely, when the first structural member 32 and the second structural member 33 move to the opposite side and are not rotatable, that is, the first casing 10 and the second casing 20 move to the opposite side and are not rotatable (if the first casing 10 and the second casing 20 are in the same plane), the electronic device 100 is in the unfolded state (as shown in fig. 2).

A plurality of hinge assemblies 34 may be provided between the first structural member 32 and the second structural member 33, or only one hinge assembly 34 may be provided at each of two ends of the main shaft 31 in the axial extension direction, so that the first structural member 32 and the second structural member 33 can rotate, and the first housing 10 and the second housing 20 are further driven to be folded or unfolded.

The electronic device 100 further comprises a flexible screen 40, wherein the flexible screen 40 is covered on the folding device 30, the first housing 10 and the second housing 20, the folding device 30 is used for folding or unfolding the flexible screen 40, and specifically, the first structural member 32 and the second structural member 33 of the folding device 30 are folded or unfolded under the action of the hinge assembly 34, so that the flexible screen 40 on the folding device is folded or unfolded therewith.

The first and second structural members 32 and 33 are rotatably connected to the main shaft 31 by a hinge assembly 34, wherein, as shown in fig. 5 and 6, the hinge assembly 34 includes first and second swing link 341 and 342 located at both sides of the main shaft 31, first and second connecting rods 343 and 344 located at both sides of the main shaft 31, and first and second screen back plates 345 and 346 located at both sides of the main shaft 31. Specifically, the first swing link 341 is located on a side of the main shaft 31 close to the first structural member 32, the second swing link 342 is located on a side of the main shaft 31 close to the second structural member 33, the first screen backboard 345 is located on a side of the main shaft 31 close to the second structural member 33, and the second screen backboard 346 is located on a side of the main shaft 31 close to the first structural member 32.

As shown in fig. 7 and 8, the first swing link 341 and the second swing link 342 include a sliding end, a rotating end, and a pushing end, the sliding end 341a of the first swing link 341 is slidably connected to the first structural member 32, and specifically, the sliding end 341a of the first swing link 341 is movable toward an end of the first structural member 32 close to or away from the main shaft 31.

The rotating end 341b of the first swing link 341 is rotatably connected to the main shaft 31, so that the first structural member 32 is rotatably connected to the main shaft 31, and rotation between the first structural member 32 and the main shaft 31 is realized. The pushing end 341c of the first swing link 341 is rotatably connected to a first end of a first connecting rod 343, a second end of the first connecting rod 343 is rotatably connected to a first end of a first screen back plate 345, and a second end of the first screen back plate 345 is rotatably connected to the second structural member 33, wherein a rotational axis of rotation between the pushing end 341c of the first swing link 341 and the first connecting rod 343 is different from a rotational axis of rotation between the rotational end 341b of the first swing link 341 and the main shaft 31. When the sliding end of the first swing link 341 slides on the first structural member 32, the pushing end 341c of the first swing link 341 can drive the first connecting rod 343 to move, and the first connecting rod 343 drives the first screen backboard 345 to move, so as to drive the second structural member 33 and the main shaft 31 to rotate relatively through the first screen backboard 345.

Referring to fig. 9, the sliding end 342a of the second swing link 342 is slidably connected to the second structure 33, and in particular, the sliding end 342a of the second swing link 342 can slide toward an end close to or far from the second structure 33.

The rotating end 342b of the second swing link 342 is rotatably connected to the main shaft 31, so that the second structural member 33 is rotatably connected to the main shaft 31, and the second structural member 33 and the main shaft 31 are rotated. The pushing end 342c of the second swing link 342 is rotatably connected to the first end of the second link 344, the second end of the second link 344 is rotatably connected to the first end of the second screen back 346, and the second end of the second screen back 346 is rotatably connected to the first structural member 32, wherein a rotational axis of rotation between the pushing end 342c of the second swing link 342 and the second link 344 is different from a rotational axis of rotation between the rotating end 342b of the second swing link 342 and the main shaft 31. When the sliding end 342a of the second swing link 342 slides with the second structure member 33, the pushing end 342c of the second swing link 342 can drive the second connecting rod 344 to move, the second connecting rod 344 drives the second screen backboard 346 to move, and the first structure member 32 and the main shaft 31 are driven to rotate relatively by the second screen backboard 346.

Specifically, referring to fig. 7, the first structural member 32 and the second structural member 33 are in a folded state, in the process of unfolding the first structural member 32 and the second structural member 33, as shown in fig. 8, the first structural member 32 is moved away from the second structural member 33, the first structural member 32 slides relative to the sliding end 341a of the first swing link 341, the sliding end 341a of the first swing link 341 slides toward the end of the first structural member 32 away from the main shaft 31, meanwhile, the rotating end 341b of the first swing link 341 rotates with the main shaft 31, the pushing end 341c of the first swing link 341 pulls the first end of the first connecting rod 343 to move towards the direction away from the second structural member 33, the first connecting rod 343 pulls the first screen backboard 345 to move towards the direction away from the axis (dotted line in the figure) of the main shaft 31, and the first screen backboard 345 drives the second structural member 33 to rotate with the main shaft 31.

Meanwhile, the second structure 33 rotates relative to the main shaft 31, the sliding end 342a of the second swing wing link 342 slides relative to the second structure 33, the pushing end 342c of the second swing wing link 342 pulls the first end of the second connecting rod 344 to move in a direction away from the first structure 32, the second connecting rod 344 pulls the second screen back 346 to move in a direction away from the axis of the main shaft 31, and the second screen back 346 drives the first structure 32 to rotate relative to the main shaft 31, so that the first structure 32 and the second structure 33 rotate back to the unfolded state. Therefore, the first structural member 32 and the second structural member 33 are linked, one of the first structural member 32 and the second structural member 33 is driven to rotate relative to the main shaft 31, that is, the other one of the first structural member 32 and the second structural member 33 can also rotate, so that the folding or unfolding between the first structural member 32 and the second structural member 33 is realized, the smoothness of the folding or unfolding operation is improved, the folding or unfolding of the electronic device 100 is facilitated, and the user experience is improved.

Accordingly, as shown in fig. 9, when the first structural member 32 and the second structural member 33 are in the unfolded state, and in the process that the first structural member 32 and the second structural member 33 move towards each other to be folded, as shown in fig. 8, the first structural member 32 moves towards the second structural member 33, the first structural member 32 slides relative to the sliding end 341a of the first swing link 341, the sliding end slides towards one end of the first structural member 32 close to the main shaft 31, and at the same time, the pushing end 341c of the first swing link 341 pushes the first connecting rod 343 to move away from the first structural member 32, the first connecting rod 343 pushes the first screen backboard 345 to move towards the direction close to the axis of the main shaft 31, and the first screen backboard 345 drives the second structural member 33 and the main shaft 31 to rotate.

Meanwhile, the sliding end 342a of the second swing link 342 slides towards the end of the second structural member 33 close to the main shaft 31, the pushing end 342c of the second swing link 342 pushes the second connecting rod 344 to move towards the direction away from the second structural member 33, the second connecting rod 344 pushes the second screen backboard 346 to move, and the second screen backboard 346 drives the first structural member 32 and the main shaft 31 to rotate.

In the process of folding and unfolding the first structural member 32 and the second structural member 33, the flexible screen 40 is also folded or unfolded, wherein, referring to fig. 7 and 8, when the first structural member 32 and the second structural member 33 are rotated to the folded state, the sliding end 341a of the first swing link 341 slides towards one end of the first structural member 32 close to the main shaft 31, the pushing end 341c of the first swing link 341 pushes the first link 343, so that the first link 343 drives the first screen backboard 345 to move to the first position, the sliding end 342a of the second swing link 342 slides towards one end of the second structural member 33 far from the main shaft 31, the pushing end 342c of the second swing link 342 pushes the second link 344, so that the second link 344 drives the second screen backboard 346 to move to the second position, wherein the first screen backboard 345 moves to the first position, the second screen backboard 346 moves to the second position, specifically, the first structural member 32 and the second structural member 33 are folded, and the first screen backboard 345 and the second screen backboard 346 are located at the same position.

When the first screen backboard 345 moves to the first position under the driving of the first connecting rod 343 and the second screen backboard 346 moves to the second position under the driving of the second connecting rod 344, the first screen backboard 345, the first connecting rod 343, the second screen backboard 346, the second connecting rod 344 and the main shaft 31 together form a screen accommodating space for accommodating the flexible screen 40. Specifically, as shown in fig. 7, the first structural member 32 and the second structural member 33 are in a folded state, the first screen back plate 345 is located at a first position, the second screen back plate 346 is located at a second position, and the first screen back plate 345, the first connecting rod 343, the second screen back plate 346, the second connecting rod 344 and the main shaft 31 together form a screen accommodating space, which can meet the accommodating requirement of the flexible screen 40 after being folded, and can reduce the occurrence of phenomena such as excessive squeezing of the flexible screen 40 during folding.

As shown in fig. 8 and 9, when the first structural member 32 and the second structural member 33 are moved away from each other to the unfolded state, the sliding end 341a of the first swing link 341 slides toward the end of the first structural member 32 away from the main shaft 31, the pushing end 341c of the first swing link 341 pulls the first connecting rod 343, so that the first connecting rod 343 drives the first screen backboard 345 to move to the third position, the sliding end 342a of the second swing link 342 slides towards the end of the second structural member 33 close to the main shaft 31, the pushing end 342c of the second swing link 342 pulls the second connecting rod, so that the second connecting rod drives the second screen backboard 346 to move to the fourth position, the third position of the first screen backboard 345 and the fourth position of the second screen backboard 346 refer to positions of the first screen backboard 345 and the second screen backboard 346 when the first structural member 32 and the second structural member 33 are in the unfolded state.

When the first screen backboard 345 moves to the third position under the driving of the first connecting rod 343, and the second screen backboard 346 moves to the fourth position under the driving of the second connecting rod 344, the first screen backboard 345 and the second screen backboard 346 are in the same plane, specifically, the first screen backboard 345 and the second screen backboard 346 may be located on the same horizontal plane and parallel to the first housing 10 and the second housing 20 of the electronic device 100, and the flexible screen 40 is laid on the first screen backboard 345, the second screen backboard 346 and the main shaft 31.

Since the sliding end 341a of the first swing link 341 slides toward the end of the first structural member 32 close to the main shaft 31, as shown in fig. 8 and 9, while the first structural member 32 rotates relative to the main shaft 31, the end of the first structural member 32 far from the flexible screen 40 moves close to the main shaft 31, and as shown in fig. 10, the end of the first structural member 32 far from the flexible screen 40 slides toward the main shaft 31 by a distance L. Similarly, while the second structural member 33 rotates relative to the main shaft 31, the end of the second structural member 33 away from the flexible screen 40 also moves close to the main shaft 31, and the sliding distance may also be L, so as to adjust the length of the first structural member 32 and the second structural member 33 away from the flexible screen 40 (the length of a fit line formed by connecting lines of the end of the first structural member away from the main shaft, the end of the main shaft, and the end of the second structural member away from the main shaft on the side away from the flexible screen), so that the length of the first structural member 32 and the length of the second structural member 33 close to the flexible screen 40 (the length of a fit line formed by connecting lines of the end of the first structural member away from the main shaft, the end of the main shaft, and the end of the second structural member away from the main shaft on the side close to the flexible screen) are substantially unchanged in the folded state and the folded state, so that the length of the flexible screen 40 is equal to the length of the flexible screen 40 in the unfolded state, pulling of the flexible screen 40 during the unfolding process is effectively avoided.

In addition, in the embodiment of the present application, when the first structural member 32 and the second structural member 33 are rotated back to the unfolded state, the first screen back plate 345 and the second screen back plate 346 are located on the same plane, as shown in fig. 9, the flexible screen 40 may be laid on the first screen back plate 345 and the second screen back plate 346, wherein the first screen back plate 345 and the second screen back plate 346 may provide a good back support function for the flexible screen 40, reduce the phenomenon that the screen of the flexible screen 40 is uneven after the flexible screen 40 is rotated from the folded state to the unfolded state, and improve the display effect and the touch sensitivity of the flexible screen 40.

Specifically, in the embodiment of the present application, referring to fig. 7, a rotating shaft 311 may be provided on the inner wall of each side of the main shaft 31, shaft holes (not shown) may be provided on the rotating ends of the first swing link 341 and the second swing link 342 to be matched with the rotating shaft 311, respectively, so that the rotating end 341b of the first swing link 341 and the main shaft 31 are rotatably connected through the matching of the rotating shaft 311 and the shaft holes, and the rotating end 342b of the second swing link 342 and the main shaft 31 are rotatably connected. In addition, the rotation shaft 311 is coupled to the solid rotation shaft 311 such as the first shaft hole to realize the rotational connection, so that the stability is higher than that of the conventional virtual shaft center rotation, and the bending resistance and the durability of the electronic device 100 can be improved.

The first swing link 341 and the second swing link 342 may further have a first fixing hole 3412 at the pushing end, the first ends of the first link 343 and the second link 344 may have a second fixing hole (not shown), and the first fixing hole 3412 and the second fixing hole may be connected by a first fixing member (not shown), such that the pushing end of the first swing link 341 and the first end of the first link 343 may be rotatably connected by the first fixing member cooperating with the first fixing hole 3412 and the second fixing hole, and the pushing end of the second swing link 342 and the first end of the second link 344 may be rotatably connected.

The second ends of the first connecting rod 343 and the second connecting rod 344 are respectively provided with a third fixing hole 3432, the first ends of the first screen backboard 345 and the second screen backboard 346 are respectively provided with a fourth fixing hole (not shown), the third fixing hole 3432 and the fourth fixing hole are connected through a second fixing member (not shown), so that the second end of the first connecting rod 343 and the first end of the first screen backboard 345 can be rotatably connected through the cooperation of the second fixing member and the third fixing hole 3432 and the fourth fixing hole, and the second end of the second connecting rod 344 and the first end of the second screen backboard 346 can be rotatably connected.

The second ends of the first screen backboard 345 and the second screen are provided with fifth fixing holes (not shown in the figure), the first structural member 32 and the second structural member 33 are provided with sixth fixing holes 331, and specifically, the fifth fixing holes and the sixth fixing holes 331 are connected through third fixing members (not shown in the figure), so that the third fixing members are matched with the fifth fixing holes and the sixth fixing holes 331 to realize the rotary connection between the first screen backboard 345 and the second structural member 33 and the rotary connection between the second screen backboard 346 and the first structural member 32.

The first fixing piece, the second fixing piece and the third fixing piece can be fixing pieces such as pins and rivets, the first fixing hole 3412, the second fixing hole, the third fixing hole 3432, the fourth fixing hole, the fifth fixing hole and the sixth fixing hole 331 can be through holes, the inner diameter of each through hole can be slightly smaller than the outer diameter of each fixing piece, and rotation can be achieved.

Referring to fig. 9, when the first structural member 32 and the second structural member 33 are moved away from each other to the unfolded state, the first screen back plate 345 and the second screen back plate 346 are located on the same horizontal plane, the flexible screen 40 is laid on the first screen back plate 345, the main shaft 31 and the second screen back plate 346, one end of the first structural member 32, which is far away from the flexible screen 40, is abutted against one end of the second structural member 33, which is far away from the flexible screen 40, and the main shaft 31 is located in the first structural member 32 and the second structural member 33.

Specifically, as shown in fig. 8, when the first structural member 32 and the second structural member 33 are moved away from each other, the sliding end of the first swing link 341 slides toward the end of the first structural member 32 away from the main shaft 31, and the first structural member 32, while rotating with the main shaft 31, the end of the first structural member 32 remote from the flexible screen 40, which is moved towards the main axis 31, may be such that the first structural member 32 partially coincides with the main axis 31, i.e. part of the main shaft 31 is located in the first structural part 32 and correspondingly the end of the second structural part 33 remote from the flexible screen 40 is also moved towards the main shaft 31, so that part of the main shaft 31 is located in the second structural part 33, and finally when the first structural part 32 and the second structural part 33 are moved to the unfolded state, the end of the first structural member 32 remote from the flexible panel 40 and the end of the second structural member 33 remote from the flexible panel 40 are brought into contact, and the main shaft 31 can be positioned in the first structural member 32 and the second structural member 33. Therefore, the first structural member 32 and the second structural member 33 shield the hinge assembly 34 (the main shaft 31), so that when the electronic device is in the unfolded state, the main shaft 31 is accommodated in the first structural member 32 and the second structural member 33, and the main shaft 31 cannot be seen, and when the first casing 10 and the second casing 20 are unfolded, the main shaft 31 of the hinge assembly 34 cannot be seen in the appearance of the electronic device 100 (as shown in fig. 2), which is helpful for improving the integration of the appearance casing of the electronic device 100, further improving the aesthetic property of the electronic device 100, and simultaneously providing the dustproof and waterproof performance of the electronic device 100.

In addition, compared with the method of shielding the hinge structure by adopting other structural parts, the self-shielding of the hinge assembly 34 is realized by the first structural part 32 and the second structural part 33, the number of parts is reduced, the structure is simplified, meanwhile, the strength and the deformation resistance of the electronic device 100 can be improved, and the problem of accidental injury such as scratch caused by the protruding structural parts can be avoided.

In the embodiment of the present application, referring to fig. 7, when the first screen backboard 345 is located at the first position and the second screen backboard 346 is located at the second position, that is, when the first structural member 32 and the second structural member 33 are in the folded state, the first end of the first screen backboard 345 is close to the side of the second structural member 33 away from the flexible screen 40, the first end of the second screen backboard 346 is close to the side of the first structural member 32 away from the flexible screen 40, that is, the first screen backboard 345 and the second screen backboard 346 are arranged obliquely to the axis of the main shaft 31, the first end of the first screen backboard 345 is inclined to the side of the second structural member 33 away from the flexible screen 40, the second screen backboard 346 is inclined to the side of the first structural member 32 away from the flexible screen 40, so that the cross sections of the first screen backboard 345 and the second screen backboard 346 are in the shape of the octagon, which can increase the receivable area of the screen space, and allow the flexible screen 40 to be arranged in the form of a water drop in the screen space, further reducing the probability of pinching the flexible screen 40 when folded.

The first connecting rod 343 and the second connecting rod 344 may have V-shaped cross sections, and since the pushing ends of the first screen backboard 345 and the first swing wing connecting rod 341 are respectively located in the first structural member 32 and the main shaft 31, and the pushing ends of the second screen backboard 346 and the second swing wing connecting rod 342 are respectively located in the second structural member 33 and the main shaft 31, the cross section of the first connecting rod 343 is V-shaped, so that the first screen backboard 345 and the first swing wing connecting rod 341 can be conveniently connected through the first connecting rod 343. Similarly, the second connecting rod 344 has a V-shaped cross section, so that the second screen backboard 346 and the second swing link 342 can be connected conveniently.

Referring to fig. 7, when the first screen backboard 345 is located at the first position and the second screen backboard 346 is located at the second position, the second end of the first connecting rod 343 is close to the side of the second structural member 33 away from the flexible screen 40, and the second end of the second connecting rod 344 is close to the side of the first structural member 32 away from the flexible screen 40, so that the screen accommodating space can be further increased, and the probability of squeezing the flexible screen 40 when folding is reduced.

In the embodiment of the present application, referring to fig. 11, the first connecting rod 343 and the second swing link 342 may be slidably connected, and the second connecting rod 344 and the first swing link 341 may also be slidably connected.

When the first structural member 32 and the main shaft 31 rotate relatively, the pushing end of the first swing wing connecting rod 341 drives the first connecting rod 343 to move, the first connecting rod 343 drives the first screen backboard 345 to move, so that the first screen backboard 345 drives the second structural member 33 and the main shaft 31 to rotate, meanwhile, the pushing end of the second swing wing connecting rod 342 also drives the second connecting rod 344 to move, the second connecting rod 344 drives the second screen backboard 346 to move, so that the second screen backboard 346 drives the first structural member 32 and the main shaft 31 to rotate, the first connecting rod 343 is connected with the second swing wing connecting rod 342 in a sliding manner, and the second connecting rod 344 is connected with the first swing wing connecting rod 341 in a sliding manner, so that the linkage between the first structural member 32 and the second structural member 33 can be enhanced, and the folding or unfolding stability and smoothness of the electronic device 100 can be improved.

Specifically, one of two opposite side surfaces of the first connecting rod 343 and the second swing link 342 may be provided with a first guide rail, and the other side surface thereof is provided with a first sliding member, and the first sliding member slides in the first guide rail, so as to realize the sliding connection between the first connecting rod 343 and the second swing link 342. One of two opposite side surfaces of the second connecting rod 344 and the first swing link 341 is provided with a second guide rail, and the other side surface is provided with a second sliding member, and the second sliding member slides in the second guide rail, so that the sliding connection between the second connecting rod 344 and the first swing link 341 is realized.

As shown in fig. 11, a first guide rail 3431 may be provided on a side surface of the first connecting rod 343 opposite to the second swing link 342, a first slider (not shown) may be provided on a side surface of the second swing link 342 opposite to the first connecting rod 343, and correspondingly, a second guide rail (not shown) may be provided on a side surface of the second connecting rod 344 opposite to the first swing link 341, and a second slider may be provided on a side surface of the first swing link 341 opposite to the second connecting rod 344, and the first guide rail 3431 and the second guide rail may be guide rail grooves, and the first slider and the second slider may be respectively protrusions formed on the second swing link 342 and the first swing link 341, and the protrusions may slide in the guide rail grooves.

In addition, in the embodiment of the present application, the first swing link 341 and the second screen backboard 346 may be slidably connected, and the second swing link 342 and the first screen back may also be slidably connected, so that the linkage between the first structural member 32 and the second structural member 33 may also be enhanced, which is helpful to improve the smoothness and smoothness of the folding or unfolding of the electronic device 100.

Specifically, a third guide rail may be disposed on one of two opposite side surfaces of the first swing link 341 and the second screen backboard 346, and a third sliding member may be disposed on the other side surface of the first swing link 341 and the second screen backboard 346, and the third sliding member slides in the third guide rail, so as to realize the sliding connection between the first swing link 341 and the second screen backboard 346. A fourth guide rail may be disposed on one of two opposite side surfaces of the second swing wing link 342 and the first screen backboard 345, and a fourth sliding member may be disposed on the other side surface, and the fourth sliding member slides in the fourth guide rail, so as to realize the sliding connection between the second swing wing link 342 and the first screen backboard 345.

As shown in fig. 11, a third guide rail 3411 may be disposed on a side surface of the first swing link 341 opposite to the second screen backboard 346, a third slider may be disposed on a side surface of the second screen backboard 346 opposite to the first swing link 341, correspondingly, a fourth guide rail may be disposed on a side surface of the second swing link 342 opposite to the first screen backboard 345, a fourth slider may be disposed on a side surface of the first screen backboard 345 opposite to the second swing link 342, the third guide rail 3411 and the fourth guide rail may be guide rail grooves, and the third slider and the fourth slider may be respectively protrusions formed on the second screen backboard 346 and the first screen backboard 345, and the protrusions may slide in the guide rail grooves.

In order to facilitate the sliding connection between the first swing link 341 and the second screen back 346, and the sliding connection between the second swing link 342 and the first screen back 345, a connection part 3451 formed to protrude toward the second swing link 342 may be formed on a side of the first screen back 345 away from the flexible screen 40, and a third slider may be disposed on the connection part 3451. Accordingly, a link formed to protrude toward the first swing link 341 is formed on a side of the second screen rear panel 346 away from the flexible screen 40, and a fourth slider may be provided on the link.

In the embodiment of the present application, the first swing link 341 and the second swing link 342 may be staggered in a direction parallel to the axis of the main shaft 31, so that the first swing link 341 and the second swing link 342 may not interfere with each other during the rotation process, thereby ensuring the stability of the folding or unfolding of the first structural member 32 and the second structural member 33.

In addition, the first swing link 341 and the second swing link 342 are arranged in a staggered manner, so that the occupied space of the hinge assembly 34 in the main shaft 31 can be reduced, and the shielding of the shell of the main shaft 31 is facilitated.

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.

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.

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 (12)

1. A folding device is applied to foldable electronic equipment and is characterized by comprising a main shaft, a first structural member and a second structural member, wherein the first structural member and the second structural member are positioned on two sides of the main shaft and are rotatably connected with the main shaft through a hinge assembly so as to enable the first structural member and the second structural member to be folded or unfolded relatively;

the hinge assembly comprises a first swing wing connecting rod and a second swing wing connecting rod which are positioned on two sides of the main shaft, a first connecting rod and a second connecting rod which are positioned on two sides of the main shaft, and a first screen back plate and a second screen back plate which are positioned on two sides of the main shaft, wherein the first swing wing connecting rod and the second swing wing connecting rod comprise sliding ends, rotating ends and pushing ends;

the sliding end of the first swing wing connecting rod is connected with the first structural member in a sliding mode, the rotating end of the first swing wing connecting rod is connected with the main shaft in a rotating mode, the pushing end of the first swing wing connecting rod is connected with the first end of the first connecting rod in a rotating mode, the second end of the first connecting rod is connected with the first end of the first screen back plate in a rotating mode, the second end of the first screen back plate is connected with the second structural member in a rotating mode, and the rotating axis of the pushing end is different from that of the rotating end;

the sliding end of the second swing wing connecting rod is connected with the second structural member in a sliding mode, the rotating end of the second swing wing connecting rod is connected with the main shaft in a rotating mode, and the pushing end of the second swing wing connecting rod is connected with the first end of the second connecting rod in a rotating mode; the second end of the second connecting rod is rotatably connected with the first end of the second screen back plate, the second end of the second screen back plate is rotatably connected with the first structural member, and the rotating axis of the pushing end is different from that of the rotating end.

2. The folding apparatus of claim 1, wherein when said first structural member and said second structural member are rotated toward each other to a folded state, the sliding end of the first swing wing connecting rod slides towards one end of the first structural member far away from the main shaft, the pushing end of the first swing wing connecting rod pushes the first connecting rod, so that the first connecting rod drives the first screen backboard to move to a first position, the sliding end of the second swing wing connecting rod slides towards one end of the second structural member away from the main shaft, the pushing end of the second swing wing connecting rod pushes the second connecting rod, the second connecting rod drives the second screen backboard to move to a second position, the first screen backboard, the first connecting rod, the second screen backboard, the second connecting rod and the main shaft jointly form a screen accommodating space for accommodating a flexible screen of the foldable electronic device.

3. The folding device according to claim 1 or 2, wherein when the first structural member and the second structural member move away from each other to the unfolded state, the sliding end of the first swing wing link slides towards the end of the first structural member close to the main shaft, the pushing end of the first swing wing link pulls the first link, so that the first link drives the first screen backboard to move to the third position, the sliding end of the second swing wing link slides towards the end of the second structural member close to the main shaft, the pushing end of the second swing wing link pulls the second link, so that the second link drives the second screen backboard to move to the fourth position, the first screen backboard and the second screen backboard are in the same plane, and a flexible screen is laid on the first screen backboard, The second screen backboard and the main shaft.

4. The folding device according to any one of claims 1 to 3, wherein when the first structural member is moved away from the second structural member to the unfolded state, an end of the first structural member away from the flexible screen and an end of the second structural member away from the flexible screen abut to shield a surface of the main shaft facing away from the flexible screen.

5. The folding device of claim 2, wherein when the first screen back is in the first position, the first end of the first screen back is proximate to a side of the second structure facing away from the flexible screen;

when the second screen backboard is located at the second position, the first end of the second screen backboard is close to the surface, away from the flexible screen, of the first structural member.

6. The folding device of claim 2, wherein said first and second connecting bars are V-shaped in cross-section;

when the first screen backboard is located at the first position, the second end of the first connecting rod approaches towards one side of the second structural member, which deviates from the flexible screen;

when the second screen backboard is located at the second position, the second end of the second connecting rod is close to the surface, away from the flexible screen, of the first structural member.

7. The folding apparatus of any of claims 1-6, wherein said first link is slidably coupled to said second swing link;

the second connecting rod is connected with the first swing wing connecting rod in a sliding mode.

8. The folding apparatus of claim 7, wherein a first guide rail is provided on one of two opposite sides of the first connecting rod and the second swing link, and a first sliding member is provided on the other side, and the first sliding member slides in the first guide rail;

and a second guide rail is arranged on one side surface of two opposite side surfaces of the second connecting rod and the first swing wing connecting rod, and a second sliding part is arranged on the other side surface of the second connecting rod and the first swing wing connecting rod and slides in the second guide rail.

9. The folding apparatus of any of claims 1 to 6, wherein said first swing link is slidably connected to said second screen back;

the second swing wing connecting rod is connected with the first screen backboard in a sliding mode.

10. The folding apparatus according to claim 9, wherein a third guide rail is provided on one of two opposite side surfaces of the first swing link and the second screen rear panel, and a third sliding member is provided on the other side surface of the first swing link and the second screen rear panel, the third sliding member sliding in the third guide rail;

and a fourth guide rail is arranged on one of two opposite side surfaces of the second swing wing connecting rod and the first screen back plate, a fourth sliding part is arranged on the other side surface, and the fourth sliding part slides in the fourth guide rail.

11. The folding apparatus of any of claims 1-10 wherein said first swing link and said second swing link are each staggered in a direction parallel to said spindle axis.

12. A foldable electronic device, comprising a first housing, a second housing and a folding apparatus according to any one of claims 1 to 11;

the first shell and the second shell are positioned on two sides of the main shaft, the first shell is fixedly connected with the first structural member, and the second shell is fixedly connected with the second structural member;

the folding device further comprises a flexible screen, and the flexible screen covers the folding device, the first shell and the second shell.

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