CN218934999U - Hinge assembly and foldable electronic device - Google Patents

Abstract

The embodiment of the application provides a hinge assembly and foldable electronic equipment, hinge assembly's support piece links to each other with spindle unit through rotating first swinging member and the second swinging member that connect, and first swinging member rotates with spindle unit to be connected, and second swinging member and support piece sliding connection, hinge assembly still include first limit structure and second limit structure, and first limit structure and second limit structure can make spindle unit be in folding state and when expanding the state at foldable electronic equipment, and hinge assembly's spindle unit can support piece through first swinging member and second swinging member. Therefore, when the foldable electronic equipment is in an intermediate state between the folding state and the unfolding state, the supporting piece is in an under-constrained state, so that the pulling stress of the supporting piece on the flexible screen can be reduced, the risk that the flexible screen falls off due to pulling can be reduced, and when the foldable electronic equipment is in the folding state and the unfolding state, the main shaft mechanism can support the supporting piece.

Description

Hinge assembly and foldable electronic device

Technical Field

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

Background

With the continuous development of electronic devices such as mobile phones, tablet computers and the like, the demands of users for large-screen electronic devices are becoming stronger, but the large-screen electronic devices have the problem of inconvenient carrying. The proposal of the flexible screen makes the foldable electronic device with the flexible screen a development direction for improving the portability.

Currently, foldable electronic devices generally include at least two structural members, where the two structural members are connected by a hinge assembly, so that the two structural members connected by the hinge assembly can rotate relatively, and further the foldable electronic device can be folded and unfolded. In the related art, the hinge assembly can include spindle unit and be located the slewing mechanism of spindle unit both sides, and slewing mechanism can include support piece, connecting piece and swinging member, and the swinging member links to each other with spindle unit and connecting piece, and the connecting piece links to each other with structure and support piece, can pass through cylindric lock and arc orbit groove normal running fit between support piece and the swinging member.

However, in the related art, when the foldable electronic device is in an intermediate state between the unfolded state and the folded state, the support member of the hinge assembly is prone to generate a stress of pulling the flexible screen, and the risk of the flexible screen falling off is high.

Disclosure of Invention

The embodiment of the application provides a hinge assembly and foldable electronic equipment, hinge assembly's support piece links to each other with spindle unit through the first swinging member and the second swinging member that rotate the connection, first swinging member rotates with spindle unit and is connected, second swinging member and support piece sliding connection, and make spindle unit can support piece through first swinging member and second swinging member when foldable electronic equipment is in folded condition and expansion state through first limit structure and second limit structure, when foldable electronic equipment is in the intermediate state between folded condition and the expansion state, support piece is in under-constraint state, reducible support piece is to the stress of pulling that flexible screen produced, reducible flexible screen is pulled and the risk that takes place to drop.

A first aspect of embodiments of the present application provides a hinge assembly, the hinge assembly comprising: the two rotating mechanisms are positioned on two sides of the main shaft mechanism and are rotationally connected with the main shaft mechanism. Each rotating mechanism comprises: the device comprises a support piece, a connecting piece, a first swinging piece and a second swinging piece. The connecting piece is rotationally connected with the main shaft mechanism, the connecting piece can move towards a direction close to or far away from the main shaft mechanism in the process of rotating relative to the main shaft mechanism, and one end of the supporting piece far away from the main shaft mechanism is rotationally connected with the connecting piece. One end of the first swinging member is rotationally connected with the spindle mechanism, the other end of the first swinging member is rotationally connected with one end of the second swinging member, and the other end of the second swinging member is slidably connected with the supporting member, so that the supporting member can move towards a direction approaching or far away from the spindle mechanism under the drive of the connecting member. The first swing piece is provided with a first limit structure at the rotating connection part of the first swing piece and the main shaft mechanism, so that the first swing piece can rotate between a first limit position and a second limit position relative to the main shaft mechanism. The rotating connection part of the first swinging piece and the second swinging piece is provided with a second limiting structure, so that the second swinging piece can rotate between a third limiting position and a fourth limiting position relative to the first swinging piece. When the hinge assembly is switched to the unfolding state, the first swinging piece rotates to a first limiting position relative to the main shaft mechanism, and the second swinging piece rotates to a third limiting position relative to the first swinging piece, so that the main shaft mechanism supports the support piece at the unfolding position through the first swinging piece and the second swinging piece. When the hinge assembly is switched to a folding state, the first swinging piece rotates to a second limiting position relative to the main shaft mechanism, and the second swinging piece rotates to a fourth limiting position relative to the first swinging piece, so that the main shaft mechanism supports the support piece in the folding position through the first swinging piece and the second swinging piece.

The hinge assembly that this embodiment provided, hinge assembly's support piece links to each other with spindle unit through first swinging member and second swinging member, and support piece can slide for the second swinging member, and the second swinging member can rotate for first swinging member, and first swinging member can rotate for spindle unit to make spindle unit through first limit structure and second limit structure can support piece through first swinging member and second swinging member when collapsible electronic equipment is in folded condition and expansion state. When the hinge assembly is in an intermediate state between a folded state and an unfolded state, the first swinging member main shaft mechanism can rotate positively and negatively, the second swinging member and the first swinging member can rotate positively and negatively, the supporting member connected with the main shaft mechanism through the first swinging member and the second swinging member is in an under-constraint state, the supporting member moves under the pressing of the deformed flexible screen, and the supporting member moves along with the deformation of the flexible screen. Therefore, when the foldable electronic equipment is in an intermediate state between the folded state and the unfolded state, the stress of the support piece on the flexible screen caused by pulling can be reduced, and the risk that the flexible screen falls off due to pulling can be reduced. In addition, when the foldable electronic equipment is in a folding state and an unfolding state, the main shaft mechanism can support the supporting piece through the first swinging piece and the second swinging piece, the position of the supporting piece in the folding state and the unfolding state of the foldable electronic equipment can be limited, the position of a plane for supporting the first display screen when the hinge assembly is in the unfolding state is controlled, the shape of a screen containing space formed by the main shaft mechanism and the supporting pieces on two sides of the main shaft mechanism when the hinge assembly is in the folding state is controlled, the supporting of the first display screen when the foldable electronic equipment is in the folding state and the unfolding state is good, and the display effect of the first display screen is good.

In one possible implementation manner, the first limiting structure includes a first limiting block disposed on the first swinging member and a second limiting block disposed on the spindle mechanism, and the second limiting block is located on a rotation path of the first limiting block. When the first swinging piece rotates to a first limiting position relative to the main shaft mechanism, one end of the first limiting block is abutted with one end of the second limiting block. When the first swinging piece rotates to a second limiting position relative to the main shaft mechanism, the other end of the first limiting block is abutted with the other end of the second limiting block.

In one possible implementation manner, the first limiting block and the second limiting block are both fan-shaped structures with axes coincident with a rotation axis of the first swinging member rotating relative to the spindle mechanism, the rotation axis of the first swinging member rotating relative to the spindle mechanism is located on a plane where an end face of the first limiting block, which is used for being abutted against the second limiting block, is located, and the rotation axis of the first swinging member rotating relative to the spindle mechanism is located on a plane where an end face of the second limiting block, which is used for being abutted against the first limiting block, is located.

In one possible implementation manner, the first swinging member is provided with a first sleeve, the spindle mechanism is provided with a first notch corresponding to the first sleeve, a first connecting shaft parallel to the axial direction of the spindle mechanism is arranged in the first notch, and the first sleeve is sleeved on the first connecting shaft in the corresponding first notch and is rotationally connected with the first connecting shaft in the corresponding first notch, so that the first swinging member is rotationally connected with the spindle mechanism. The first limiting block is arranged on the end face of the first sleeve, and the second limiting block is arranged on the inner wall of the first notch.

In one possible embodiment, the first pendulum is provided with two first sleeves which are coaxial and are arranged at intervals in the axial direction of the spindle mechanism. The end face of each first sleeve is provided with a first limiting block, and the inner wall of each first notch is provided with a second limiting block.

In one possible implementation manner, the second limiting structure includes a third limiting block disposed on the first swinging member and a fourth limiting block disposed on the second swinging member, where the fourth limiting block is located on a rotation path of the third limiting block. When the second swinging piece rotates to a third limiting position relative to the first swinging piece, one end of the third limiting block is abutted with one end of the fourth limiting block. When the second swinging piece rotates to a fourth limiting position relative to the first swinging piece, the other end of the third limiting block is abutted with the other end of the fourth limiting block.

In one possible implementation manner, the third limiting block and the fourth limiting block are both in a fan-shaped annular structure with axes coincident with the rotating shaft of the second swinging member rotating relative to the first swinging member, the rotating shaft of the second swinging member rotating relative to the first swinging member is located on a plane where the end face of the third limiting block, which is used for being abutted against the fourth limiting block, is located, and the rotating shaft of the second swinging member rotating relative to the first swinging member is located on a plane where the end face of the fourth limiting block, which is used for being abutted against the third limiting block, is located.

In one possible implementation manner, one of the first swinging member and the second swinging member is provided with a second sleeve, the other one of the first swinging member and the second swinging member is provided with a second notch corresponding to the second sleeve, a second connecting shaft parallel to the axial direction of the spindle mechanism is arranged in the second notch, and the second sleeve is sleeved on the second connecting shaft in the corresponding second notch and is rotationally connected with the second connecting shaft in the corresponding second notch, so that the second swinging member is rotationally connected with the first swinging member. One of the third limiting block and the fourth limiting block is arranged on the end face of the second sleeve, and the other one of the third limiting block and the fourth limiting block is arranged on the inner wall of the second notch.

In one possible implementation manner, two opposite ends of the second sleeve are provided with one of a third limiting block and a fourth limiting block, and two opposite side inner walls of the second notch are provided with the other one of the third limiting block and the fourth limiting block.

In one possible embodiment, a side of the support element is provided with a recess for the second pendulum element to swing.

In one possible implementation, the first swinging member is a bending member with an obtuse angle, and a distance from an end of the first swinging member connected to the spindle mechanism to the angle of the first swinging member is greater than a distance from an end of the first swinging member connected to the second swinging member to the angle of the first swinging member.

In one possible implementation manner, one of the second swinging member and the supporting member is provided with a linear chute, the other one of the second swinging member and the supporting member is provided with a sliding part in sliding fit with the linear chute, and the second swinging member is in sliding connection with the supporting member through the linear chute and the sliding part. The linear chute comprises a first plane chute wall and a second plane chute wall which are opposite, the sliding part comprises a first sliding plane and a second sliding plane which are opposite, the first plane chute wall is in surface contact with the first sliding plane, and the second plane chute wall is in surface contact with the second sliding plane.

In one possible implementation, the first plane groove wall of the linear chute is parallel to the second plane groove wall, and the first sliding plane and the second sliding plane of the sliding portion are parallel.

In one possible implementation, the sliding portion is a cube-like structure.

In one possible implementation, the support member is provided with at least two opposite linear sliding grooves, at least part of the second swinging member is located between the two opposite linear sliding grooves, and two sides of the second swinging member are respectively provided with sliding parts in sliding fit with the adjacent linear sliding grooves.

In one possible implementation, at least two opposite lugs are provided on one side of the support, and a linear chute is provided on the lugs.

In one possible implementation, the two ends of the linear chute extend through the lug on which they are located.

In one possible implementation, each rotation mechanism further comprises a third oscillating member. One end of the third swinging member is rotationally connected with the spindle mechanism, and the other end of the third swinging member is slidingly connected with the connecting member, so that the connecting member is rotationally connected with the spindle mechanism, and the connecting member can move in a direction approaching or separating from the spindle mechanism in the process of rotating relative to the spindle mechanism.

In one possible embodiment, the third pendulum members on both sides of the spindle mechanism are connected in a gear-train transmission.

A second aspect of embodiments of the present application provides a foldable electronic device, including: the hinge assembly of any of the above embodiments, the first structural member and the second structural member. The first structural member and the second structural member are respectively positioned at two sides of the hinge assembly, the first structural member is fixedly connected with a connecting piece adjacent to the first structural member in the hinge assembly, and the second structural member is fixedly connected with a connecting piece adjacent to the second structural member in the hinge assembly.

According to the foldable electronic equipment, the supporting piece in the hinge assembly of the electronic equipment is connected with the main shaft mechanism through the first swinging piece and the second swinging piece, the supporting piece can slide relative to the second swinging piece, the second swinging piece can rotate relative to the first swinging piece, the first swinging piece can rotate relative to the main shaft mechanism, and the main shaft mechanism can be supported through the first swinging piece and the second swinging piece when the foldable electronic equipment is in a folding state and an unfolding state through the first limiting structure and the second limiting structure. When the hinge assembly is in an intermediate state between a folded state and an unfolded state, the first swinging member main shaft mechanism can rotate positively and negatively, the second swinging member and the first swinging member can rotate positively and negatively, the supporting member connected with the main shaft mechanism through the first swinging member and the second swinging member is in an under-constraint state, the supporting member moves under the pressing of the deformed flexible screen, and the supporting member moves along with the deformation of the flexible screen. Therefore, when the foldable electronic equipment is in an intermediate state between the folded state and the unfolded state, the stress of the support piece on the flexible screen caused by pulling can be reduced, and the risk that the flexible screen falls off due to pulling can be reduced. In addition, when the foldable electronic equipment is in a folding state and an unfolding state, the main shaft mechanism can support the supporting piece through the first swinging piece and the second swinging piece, the position of the supporting piece in the folding state and the unfolding state of the foldable electronic equipment can be limited, the position of a plane for supporting the first display screen when the hinge assembly is in the unfolding state is controlled, the shape of a screen containing space formed by the main shaft mechanism and the supporting pieces on two sides of the main shaft mechanism when the hinge assembly is in the folding state is controlled, the supporting of the first display screen when the foldable electronic equipment is in the folding state and the unfolding state is good, and the display effect of the first display screen is good.

Drawings

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

fig. 2 is a schematic view of still another foldable electronic device provided in an embodiment of the present application in an unfolded state;

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

fig. 4 is a schematic view of still another foldable electronic device provided in an embodiment of the present application in an intermediate state;

FIG. 5 is a schematic diagram of a hinge assembly according to an embodiment of the present disclosure in an unfolded state and a folded state;

fig. 6 is a schematic diagram of a first display and a hinge assembly when still another foldable electronic device according to an embodiment of the present application is in a folded state;

FIG. 7 is a partial schematic view of yet another hinge assembly provided in an embodiment of the present application in a folded state;

FIG. 8 is a schematic view of a hinge assembly according to an embodiment of the present application in an extended state where the first and second swings are assembled with the spindle mechanism and the support;

FIG. 9 is a schematic view of a hinge assembly according to an embodiment of the present application in a folded state where the first and second swinging members are assembled with the spindle mechanism and the support member;

FIG. 10 is a schematic view illustrating an assembly of a first swing member and a spindle mechanism of yet another hinge assembly according to an embodiment of the present disclosure;

FIG. 11 is a schematic diagram illustrating an assembly of a second swing member and a first swing member of a hinge assembly according to an embodiment of the present disclosure;

FIG. 12 is a schematic view of a second swing member and a first swing member of yet another hinge assembly according to an embodiment of the present disclosure after the second swing member and the first swing member are assembled;

FIG. 13 is a schematic view illustrating an assembly of a second swing member and a support member of yet another hinge assembly according to an embodiment of the present disclosure;

FIG. 14 is a schematic view of an assembly of a support member and a connector member of yet another hinge assembly according to an embodiment of the present application;

FIG. 15 is a schematic view of a connection of a support member and a connecting member of yet another hinge assembly according to an embodiment of the present application in an unfolded state and a folded state;

FIG. 16 is a schematic view illustrating an assembly of a third swing member and a connecting member of yet another hinge assembly according to an embodiment of the present disclosure;

fig. 17 is a schematic view of a third swing member and a spindle mechanism of another hinge assembly according to an embodiment of the present disclosure after the third swing member and the spindle mechanism are assembled.

Reference numerals illustrate:

110. a first structural member; 111. a first middle frame; 1111. a first frame; 1112. a first middle plate; 112. a first rear cover;

120. A second structural member; 121. a second middle frame; 1211. a second frame; 1212. a second middle plate; 122. a second rear cover;

200. a hinge assembly; 210. a spindle mechanism; 211. a first connecting shaft; 212. a first notch; 220. a rotating mechanism;

310. a first display screen; 311. a first display area; 312. a second display area; 313. a third display area; 3131. a first bending sub-region; 3132. a support sub-region; 3133. a second bending sub-region;

320. a second display screen;

400. a support; 410. a bump; 420. a first linear chute; 430. an empty-avoiding groove; 440. and (3) sticking glue; 450. a first arcuate wiper arm;

500. a connecting piece; 510. a second linear chute; 520. the first arc chute;

600. a first swinging member; 610. a second connecting shaft; 620. a first sleeve; 630. a second notch;

700. a second swinging member; 710. a first sliding portion; 720. a second sleeve;

800. a third swinging member; 810. a second sliding part; 820. meshing teeth; 830. a gear set; 831. a transmission gear;

910. a first limit structure; 911. a first limiting block; 912. a second limiting block; 920. a second limit structure; 921. a third limiting block; 922. and a fourth limiting block.

Detailed Description

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

The embodiment of the application provides foldable electronic equipment, which can change the form of the electronic equipment by folding and unfolding so as to meet the demands of users in different scenes. For example, when carried, can be folded to reduce the size of the electronic device; in use, can be expanded to increase the size of the screen for display or operation. It is understood that the foldable electronic device may also be referred to as a User Equipment (UE) or a terminal (terminal) or the like.

The foldable electronic device provided by the embodiments of the present application may include, but is not limited to, mobile terminals or fixed terminals such as a tablet (portable android device, PAD), a notebook, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication function, a computing device, a vehicle-mounted device, a wearable device, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned (self driving), a wireless terminal in remote medical (remote media), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), and the like. In this embodiment, a foldable electronic device is taken as an example of a handheld device with a wireless communication function, and the handheld device with the wireless communication function may be a folding screen mobile phone.

Fig. 1 is a schematic diagram of a foldable electronic device in a folded state according to an embodiment of the present application.

As shown in fig. 1, a foldable electronic device provided in an embodiment of the present application may include: the first structural member 110, the second structural member 120 and the hinge assembly 200, the first structural member 110 and the second structural member 120 are respectively located at two sides of the hinge assembly 200, and the first structural member 110 and the second structural member 120 are respectively and tightly connected with one side of the hinge assembly 200 adjacent to each other. Illustratively, the first and second structural members 110, 120 may be securely coupled to the side of the hinge assembly 200 adjacent thereto by welding, adhesive, fastener coupling, or the like.

It is understood that the axis of the hinge assembly 200 may extend in the width direction of the foldable electronic device. The foldable electronic device may be switched between an unfolded state and a folded state, and when the foldable electronic device is in the unfolded state, the first structural member 110 and the second structural member 120 may be arranged along a length direction of the foldable electronic device.

In this embodiment, the first structural member 110 and the second structural member 120 connected by the hinge assembly 200 may rotate toward each other to be stacked, and at this time, the foldable electronic device is in a folded state, and the first structural member 110 and the second structural member 120 located at two sides of the hinge assembly 200 may be parallel to each other. It will be appreciated by those skilled in the art that the two structural members may not be exactly parallel to each other due to design tolerances, etc., allowing for some deviation.

Fig. 2 is a schematic diagram of a foldable electronic device in an unfolded state according to an embodiment of the present application.

As shown in fig. 2, in the embodiment of the present application, the first structural member 110 and the second structural member 120 connected by the hinge assembly 200 may further rotate from a stacked state back to an angle between the first structural member 110 and the second structural member 120 of approximately 180 °, where the foldable electronic device is in an unfolded state. It will be appreciated by those skilled in the art that the angle between the two structural members is approximately 180, and may not be an absolute 180, due to design tolerances, etc., allowing for a few deviations, such as 165, 177, or 185.

It will be appreciated that the foldable electronic device also has an intermediate state when switching between the folded state and the unfolded state.

It should be noted that the number of the first structural members 110 and the second structural members 120 may be one. For example, as shown in fig. 1, the foldable electronic device may include only one first structural member 110, one second structural member 120, and a hinge assembly 200 for connecting the first structural member 110 and the second structural member 120, and the first structural member 110 and the second structural member 120 may be rotated to each other to be stacked, so that the foldable electronic device takes a two-layered form.

The number of the first and second structural members 110 and 120 may be plural, and a hinge assembly 200 (not shown) for connecting the first and second structural members 110 and 120 may be provided between the adjacent first and second structural members 110 and 120. For example, the foldable electronic device may include two second structural members 120, one first structural member 110, and two hinge assemblies 200 for connecting the first structural member 110 and the second structural member 120, where the two second structural members 120 are located at two sides of the first structural member 110 and are rotatably connected to the first structural member 110 through one hinge assembly 200, respectively, and one of the second structural members 120 and the first structural member 110 may be rotated to be stacked with each other, and the other second structural member 120 may also be rotated to be stacked with respect to the first structural member 110, so that the foldable electronic device may take a three-layer folded configuration, or two-layer folded configurations where the two second structural members 120 are stacked on the same side of the first structural member 110 and are located on the same layer. The foldable electronic device may be partially unfolded by rotating one of the second structural members 120 approximately 180 ° to the first structural member 110, or may be fully unfolded by rotating all of the second structural members 120 approximately 180 ° to the first structural member 110.

As shown in fig. 2, in the embodiment of the present application, the foldable electronic device further includes a first display screen 310, where the first display screen 310 is a flexible screen, and the first display screen 310 may be disposed on the surfaces of the first structural member 110, the second structural member 120, and the hinge assembly 200. When the foldable electronic device is in the folded state, a screen accommodating space can be formed between the first structural member 110, the second structural member 120 and the hinge assembly 200, the first display screen 310 is folded and attached between the first structural member 110, the second structural member 120 and the hinge assembly 200, and when the foldable electronic device is switched to the unfolded state, the first display screen 310 is unfolded accordingly.

It will be appreciated that the first display screen 310 is mounted on the same side surface of the first structural member 110, the second structural member 120 and the hinge assembly 200. The first and second structural members 110 and 120 may be securely coupled to the first display screen 310, and the hinge assembly 200 may be used to support the first display screen 310. For example, both the first structural member 110 and the second structural member 120 may be adhesively secured to the first display screen 310.

The first display screen 310 may be used for image display and may also be used as a virtual keyboard for inputting information, and the function of the first display screen 310 may be determined according to a specific application scenario.

By way of example, the first display 310 may be an organic light-emitting diode (OLED) display, an active-matrix organic light-emitting diode (AMOLED) display, a mini-light-emitting diode (mini organic light-emitting diode) display, a micro-light-emitting diode (micro organic light-emitting diode) display, a quantum dot light-emitting diode (quantum dot light-emitting diode) display, or the like.

In this embodiment, the first display screen 310 includes a first display area 311 corresponding to the first structural member 110, a second display area 312 corresponding to the second structural member 120, and a third display area 313 corresponding to the hinge assembly 200, where the first display area 311 is disposed opposite to the corresponding first structural member 110 and is fastened to the corresponding first structural member 110, the second display area 312 is disposed opposite to the corresponding second structural member 120 and is fastened to the corresponding second structural member 120, the third display area 313 is disposed opposite to the corresponding hinge assembly 200, and the hinge assembly 200 is used to support the corresponding third display area 313.

It will be appreciated that the first structural member 110 may be adhesively secured to the corresponding first display region 311, and the second structural member 120 may be adhesively secured to the corresponding second display region 312, with the first display region 311 and the second display region 312 being connected by a third display region 313 therebetween.

When the foldable electronic device is switched from the unfolded state to the folded state, the first display area 311 and the second display area 312 rotate along with the first structural member 110 and the second structural member 120, which are fixedly connected with each other, respectively, the third display area 313 is bent, and the third display area 313 is switched from the flat state to the bent state. When the foldable electronic device is switched from the folded state to the unfolded state, the first display area 311 and the second display area 312 rotate along with the first structural member 110 and the second structural member 120 which are fixedly connected with each other, the third display area 313 is flattened, and the third display area 313 is switched from the folded state to the flat state. When the third display area 313 is in a bent state, the first display area 311 and the second display area 312 connected at two sides thereof may be parallel to each other (allowing for a small deviation), and the third display area 313 may have a droplet-shaped structure. When the third display region 313 is in a flat state, the third display region 313 may be coplanar with the first display region 311 and the second display region 312 connected to both sides thereof (allowing for a slight deviation).

Fig. 3 is an exploded view of yet another foldable electronic device provided in an embodiment of the present application.

As shown in fig. 3, and referring to fig. 2, in the embodiment of the present application, the first structural member 110 includes a first middle frame 111 and a first rear cover 112, and the second structural member 120 includes a second middle frame 121 and a second rear cover 122, and the first middle frame 111 and the second middle frame 121 are respectively fastened to sides adjacent to the hinge assembly 200. The first rear cover 112 is fastened to one side of the first middle frame 111 in the thickness direction, and the other side of the first middle frame 111 in the thickness direction is fastened to the first display area 311 of the first display screen 310. The second rear cover 122 is fixedly coupled to one side of the second middle frame 121 in the thickness direction, and the other side of the second middle frame 121 in the thickness direction is fixedly coupled to the second display area 312 of the first display screen 310.

It will be appreciated that when the foldable electronic device is in the unfolded state, the included angle between the first middle frame 111 and the second middle frame 121 located on both sides of the hinge assembly 200 is substantially 180 ° (allowing for a few deviations, such as 165 °, 177 °, or 185 °), and the included angle between the first rear cover 112 and the second rear cover 122 located on both sides of the hinge assembly 200 is substantially 180 ° (allowing for a few deviations, such as 165 °, 177 °, or 185 °); when the foldable electronic device is in a folded state, the first and second middle frames 111 and 121 located at both sides of the hinge assembly 200 may be parallel to each other (allowing a slight deviation), the first and second rear covers 112 and 122 located at both sides of the hinge assembly 200 may be parallel to each other (allowing a slight deviation), and the first and second middle frames 111 and 121 located at both sides of the hinge assembly 200 are sandwiched between the first and second rear covers 112 and 122.

In this embodiment, the first middle frame 111 may include a first middle plate 1112 and a first frame 1111 surrounding an outer edge of the first middle plate 1112, and the second middle frame 121 may include a second middle plate 1212 and a second frame 1211 surrounding an outer edge of the second middle plate 1212. The first middle frame 111 may be fastened to the hinge assembly 200 through the first middle plate 1112 or the first frame 1111, and the second middle frame 121 may be fastened to the hinge assembly 200 through the second middle plate 1212 or the second frame 1211.

Fig. 4 is a schematic view of still another foldable electronic device provided in an embodiment of the present application in an intermediate state.

As shown in fig. 4, in an embodiment of the present application, the foldable electronic device may further include a second display screen 320, and the second display screen 320 may be mounted on at least one of the first structural member 110 and the second structural member 120, and the second display screen 320 and the first display screen 310 are respectively located at both sides of the first structural member 110 in the thickness direction or at both sides of the second structural member 120 in the thickness direction. For example, the second display 320 is mounted on the first structural member 110 and opposite to the first display region 311 of the first display 310, and the second display 320 and the first display region 311 of the first display 310 are respectively located at two sides of the first structural member 110, so that the second display 320 can be used as an external screen when the electronic device is in a folded state. The second display 320 may be a liquid crystal display, for example.

Of course, in some examples, the second display 320 may not be provided.

Fig. 5 is a schematic diagram of a hinge assembly according to an embodiment of the present application in an unfolded state and a folded state.

As shown in fig. 5, in an embodiment of the present application, the hinge assembly 200 includes: a spindle mechanism 210, and two rotating mechanisms 220 located on both sides of the spindle mechanism 210 and rotatably connected to the spindle mechanism 210.

It will be appreciated that the first structural member 110 and the second structural member 120 are respectively and fixedly connected to the rotating mechanism 220 adjacent to the hinge assembly 200, and the first structural member 110 and the second structural member 120 may be rotatably connected to the spindle mechanism 210 by the rotating mechanism 220 connected to the first structural member 110 and the second structural member 120, so as to realize opposite and opposite rotation of the first structural member 110 and the second structural member 120.

The hinge assembly 200 is switchable between an extended state and a collapsed state, the hinge assembly 200 being in the extended state when the foldable electronic device is in the extended state; when the foldable electronic device is in the folded state, the hinge assembly 200 is in the folded state.

The axis of the spindle mechanism 210 may extend in the width direction of the foldable electronic device.

For example, the two rotating mechanisms 220 rotatably connected to the two sides of the spindle mechanism 210 may be symmetrically disposed with respect to the spindle mechanism 210, and the rotating mechanisms 220 on the two sides of the spindle mechanism 210 are located on the same side of the spindle mechanism 210 in the thickness direction when the hinge assembly 200 is in the folded state.

As shown in fig. 5, in the embodiment of the present application, each rotation mechanism 220 may include a connection member 500, where the connection member 500 is rotatably connected to the spindle mechanism 210, and the connection member 500 may be moved in a direction approaching or moving away from the spindle mechanism 210 during rotation relative to the spindle mechanism 210. The first structural member 110 is securely coupled to the connector 500 of the hinge assembly 200 adjacent to the first structural member 110, and the second structural member 120 is securely coupled to the connector 500 of the hinge assembly 200 adjacent to the second structural member 120.

It will be appreciated that the first structural member 110 may be securely connected to its adjacent connector 500 by welding, adhesive bonding, fastener connection, etc., and the second structural member 120 may be securely connected to its adjacent connector 500 by welding, adhesive bonding, fastener connection, etc.

When the first structural member 110 rotates relative to the spindle mechanism 210, the connecting member 500 which can be fastened and connected with the first structural member can be driven to rotate relative to the spindle mechanism 210. When the second structural member 120 rotates relative to the spindle mechanism 210, the connecting member 500 that can be fastened and connected with the second structural member can be driven to rotate relative to the spindle mechanism 210.

The connection member 500 may be a connection frame, a connection plate, a connection block, or the like.

Fig. 6 is a schematic diagram of a first display and a hinge assembly when still another foldable electronic device according to an embodiment of the present application is in a folded state.

As shown in fig. 6 and referring to fig. 5, in the embodiment of the present application, each rotation mechanism 220 may further include a support 400, the support 400 being used to support the third display area 313 of the first display screen 310, and the connection 500 being connected to the support 400.

Illustratively, the support 400 may be a support plate, which may also be referred to as a door panel, the support 400 may also be a support block, a support grid, or the like.

Each support 400 may be connected to one or more connectors 500, and the plurality of connectors 500 connected to the same support 400 may be spaced apart along the axial direction of the spindle mechanism 210.

In the embodiment of the present application, the third display region 313 may include a first bending sub-region 3131, a supporting sub-region 3132, and a second bending sub-region 3133. The support sub-regions 3132 are in one-to-one correspondence with the supports 400 and are available for interference with the corresponding supports 400. The first display region 311 has a second bending sub-region 3133 between its adjacent support sub-region 3132, and the first display region 311 is connected to its adjacent support sub-region 3132 by the second bending sub-region 3133 therebetween. The second display area 312 has a second bending sub-area 3133 between its adjacent support sub-area 3132, and the second display area 312 is connected to its adjacent support sub-area 3132 by the second bending sub-area 3133 therebetween. A first bending subarea 3131 is arranged between each two adjacent support subareas 3132, and the two adjacent support subareas 3132 are connected through the first bending subarea 3131. In the process of switching the unfolding state and the folding state of the foldable electronic device, the first display area 311 and the second display area 312 rotate relative to the spindle mechanism 210 under the driving of the corresponding first structural member 110 and second structural member 120, and the second bending sub-area 3133 and the first bending sub-area 3131 are bent or flattened. The support sub-region 3132 may not buckle during switching of the unfolded state and the folded state of the foldable electronic device.

In some examples, the support sub-regions 3132 may be securely connected to the corresponding support 400 by a fastening structure such as glue 440.

Of course, fastening structures such as glue 440 may not be provided between the support 400 and the corresponding support sub-region 3132.

In the related art, the rotating mechanism further comprises a swinging member, one end of the swinging member is rotationally connected with the spindle mechanism, the other end of the swinging member is rotationally connected with the connecting member, constraint is formed between the supporting member and the swinging member, constraint is formed between the supporting member and the connecting member, and therefore the supporting member can act along with the swinging member under the constraint of the swinging member in the process that the connecting member drives the swinging member to rotate relative to the spindle mechanism. For example, a cylindrical pin can be arranged on the swinging member, an arc track groove is arranged on the supporting member, the cylindrical pin is slidably assembled in the arc track groove, the cylindrical pin can slide along the arc track groove, the swinging member can rotate around the cylindrical pin in the sliding process of the cylindrical pin in the arc track groove, the supporting member and the connecting member can be rotationally connected through a solid shaft or an arc arm for defining a virtual shaft and a corresponding chute, and the hinge assembly can drive the supporting member to act through the interaction of the cylindrical pin and the wall of the arc track groove in the switching process of the unfolding state and the folding state. In the related art, in the process of switching between the unfolded state and the folded state of the foldable electronic device, the third display area of the first display screen is bent or flattened under the supporting force of the supporting member driven by the swinging member, in other words, the supporting member applies a force to the third display area to bend or flatten the third display area. When the foldable electronic equipment is in an intermediate state between the folding state and the unfolding state, the position of the supporting piece, which is used for abutting against the third display area, deviates from the position of the third display area, which is used for abutting against the supporting piece, which is bent under the driving of the first display area and the second display area, the supporting piece easily generates the pulling stress on the first display screen, and the first display screen has a large falling risk due to the pulling.

Fig. 7 is a partial schematic view of yet another hinge assembly provided in an embodiment of the present application in a folded state.

As shown in fig. 7, and referring to fig. 5, based thereon, in the embodiment of the present application, each rotation mechanism 220 further includes a first swing member 600 and a second swing member 700. The end of the support 400 remote from the spindle mechanism 210 is rotatably coupled to the coupling 500. One end of the first swinging member 600 is rotatably connected with the spindle mechanism 210, the other end of the first swinging member 600 is rotatably connected with one end of the second swinging member 700, and the other end of the second swinging member 700 is slidably connected with the supporting member 400, so that the supporting member 400 can move in a direction approaching or separating from the spindle mechanism 210 under the driving of the connecting member 500.

It will be appreciated that the support 400 and the connector 500 may be rotatably coupled by a solid shaft about which the support 400 may rotate relative to the connector 500. The support 400 and the connecting member 500 may also be rotatably connected by an arc arm and a corresponding chute for defining a virtual axis about which the support 400 may rotate relative to the connecting member 500. Illustratively, one of the support 400 and the connection member 500 is provided with a third connection shaft, the other of the support 400 and the connection member 500 is provided with a mounting hole corresponding to the third connection shaft, the support 400 and the connection member 500 are rotatably connected through the third connection shaft and the mounting hole, and the support 400 is rotatable about the third connection shaft with respect to the connection member 500 (not shown).

The first swinging member 600 and the spindle mechanism 210 may be rotatably connected by a solid shaft, about which the first swinging member 600 may rotate relative to the spindle mechanism 210. The first swinging member 600 and the spindle mechanism 210 may also be rotatably connected through an arc arm and a corresponding chute for defining a virtual axis, about which the first swinging member 600 may rotate relative to the spindle mechanism 210. Illustratively, one of the first swinging member 600 and the spindle mechanism 210 is provided with a second arc-shaped sliding arm, and the other of the first swinging member 600 and the spindle mechanism 210 is provided with a second arc-shaped sliding groove corresponding to the second arc-shaped sliding arm, and the second arc-shaped sliding arm is slidably mounted in the second arc-shaped sliding groove, so that the first swinging member 600 is rotatably connected with the spindle mechanism 210, and the first swinging member 600 can rotate relative to the spindle mechanism 210 about a virtual axis (not shown) defined by the second arc-shaped sliding groove and the second arc-shaped sliding arm. It is understood that the second arc chute may be a quarter arc chute, a third arc chute, a half arc chute, etc., and the second arc runner may be a quarter arc arm, a third arc arm, a half arc arm, etc.

The first swinging member 600 and the second swinging member 700 may be rotatably connected by a solid axis, and the second swinging member 700 may rotate around the solid axis with respect to the first swinging member 600. The first swinging member 600 and the second swinging member 700 may also be rotatably connected through an arc arm and a corresponding chute for defining a virtual axis, and the second swinging member 700 may rotate around the virtual axis relative to the first swinging member 600. Illustratively, one of the first and second swinging members 600 and 700 is provided with a third arc-shaped sliding arm, the other of the first and second swinging members 600 and 700 is provided with a third arc-shaped sliding groove corresponding to the third arc-shaped sliding arm, and the third arc-shaped sliding arm is slidably assembled in the third arc-shaped sliding groove, so that the first swinging member 600 is rotatably connected with the second swinging member 700, and the second swinging member 700 can rotate relative to the first swinging member 600 about a virtual axis (not shown) defined by the third arc-shaped sliding groove and the third arc-shaped sliding arm. It is understood that the third arc chute may be a quarter arc chute, a third arc chute, a half arc chute, etc., and the third arc slide arm may be a quarter arc arm, a third arc arm, a half arc arm, etc.

For example, a sliding rod may be disposed on the second swinging member 700, and the support 400 may be provided with a sliding hole corresponding to the sliding rod, and the sliding rod is slidably fitted in the sliding hole, so that the second swinging member 700 is slidably connected to the support 400 (not shown).

Fig. 8 is a schematic view of an assembly of the first and second swinging members with the spindle mechanism and the support member in an unfolded state of the hinge assembly according to the embodiment of the present application. Fig. 9 is a schematic view of an assembly of the hinge assembly according to the embodiment of the present application, in a folded state, where the first swing member and the second swing member are assembled with the spindle mechanism and the support member.

As shown in fig. 8 and 9, in the embodiment of the present application, a first limiting structure 910 is disposed at a rotational connection portion between the first swinging member 600 and the spindle mechanism 210, so that the first swinging member 600 can rotate between a first limiting position and a second limiting position relative to the spindle mechanism 210. A second limiting structure 920 is provided at a rotational connection between the first swinging member 600 and the second swinging member 700, so that the second swinging member 700 can rotate between a third limiting position and a fourth limiting position relative to the first swinging member 600. When the hinge assembly 200 is switched to the unfolded state, the first swinging member 600 rotates to the first limit position relative to the spindle mechanism 210, and the second swinging member 700 rotates to the third limit position relative to the first swinging member 600, so that the spindle mechanism 210 supports the support member 400 in the unfolded position through the first swinging member 600 and the second swinging member 700. When the hinge assembly 200 is switched to the folded state, the first swinging member 600 rotates to the second limit position relative to the spindle mechanism 210, and the second swinging member 700 rotates to the fourth limit position relative to the first swinging member 600, so that the spindle mechanism 210 supports the support member 400 in the folded position through the first swinging member 600 and the second swinging member 700.

In this way, when the hinge assembly 200 is in the intermediate state between the folded state and the unfolded state, the first swinging member 600 and the spindle mechanism 210 can rotate in opposite directions, and the second swinging member 700 and the first swinging member 600 can rotate in opposite directions, at this time, the supporting member 400 connected to the spindle mechanism 210 through the first swinging member 600 and the second swinging member 700 is in the under-constrained state, and the supporting member 400 is moved by the third display region 313 which is bent under the driving of the first display region 311 and the second display region 312, and the position of the supporting member 400 is controlled by the third display region 313 which is bent under the driving of the first display region 311 and the second display region 312. In other words, the support 400 acts with the deformation of the third display region 313 when the hinge assembly 200 is in an intermediate state between the folded state and the unfolded state. In this way, when the foldable electronic device is in an intermediate state between the folded state and the unfolded state, the stress of the support 400 on the first display screen 310 caused by pulling can be reduced, and the risk that the first display screen 310 falls off due to being pulled can be reduced. In addition, by providing the first limit structure 910 and the second limit structure 920, when the foldable electronic device is in the folded state and the unfolded state, the spindle mechanism 210 can support the support member 400 through the first swinging member 600 and the second swinging member 700, so that the position of the support member 400 in the folded state and the unfolded state of the foldable electronic device can be limited, the position of the plane for supporting the first display screen 310 when the hinge assembly 200 is in the unfolded state can be controlled, so that the shape of the screen accommodating space formed by the spindle mechanism 210 and the support members 400 on two sides of the spindle mechanism when the hinge assembly 200 is in the folded state can be controlled, the support of the first display screen 310 when the foldable electronic device is in the folded state and the unfolded state can be better, and the display effect of the first display screen 310 can be better.

It is understood that the unfolded position of the support 400 refers to the position of the support 400 when the foldable electronic device is in the unfolded state. The folded position of the support 400 refers to a position where the support 400 is located when the foldable electronic device is in a folded state.

The support 400 being in an under-constrained state means that the support 400 is free to rotate relative to the spindle mechanism 210. When the support 400 is in the under-constrained state, the third display region 313 is bent, and can rotate relative to the spindle mechanism 210 along with the deformation of the third display region 313.

The direction in which the first swinging member 600 rotates relative to the spindle mechanism 210 during the process of switching the hinge assembly 200 from the folded state to the unfolded state is referred to as a first direction, the direction in which the second swinging member 700 rotates relative to the first swinging member 600 is referred to as a second direction, the direction in which the first swinging member 600 rotates relative to the spindle mechanism 210 during the process of switching the hinge assembly 200 from the unfolded state to the folded state is referred to as a third direction, and the direction in which the second swinging member 700 rotates relative to the first swinging member 600 is referred to as a fourth direction. After the first swinging member 600 rotates to the first limiting position relative to the spindle mechanism 210, the first swinging member 600 cannot rotate in the first direction relative to the spindle mechanism 210, and the first swinging member 600 can rotate in the third direction relative to the spindle mechanism 210. After the first swinging member 600 rotates to the second limit position relative to the spindle mechanism 210, the first swinging member 600 cannot rotate in the third direction relative to the spindle mechanism 210, and the first swinging member 600 can rotate in the first direction relative to the spindle mechanism 210. After the second swinging member 700 rotates to the third limit position relative to the first swinging member 600, the second swinging member 700 cannot rotate in the second direction relative to the first swinging member 600, and the second swinging member 700 can rotate in the fourth direction relative to the first swinging member 600. After the second swinging member 700 rotates to the fourth limit position relative to the first swinging member 600, the second swinging member 700 cannot rotate in the fourth direction relative to the first swinging member 600, and the second swinging member 700 can rotate in the second direction relative to the first swinging member 600. Wherein the first direction is opposite to the third direction and the second direction is opposite to the fourth direction.

The first limiting structure 910 may include a first arc-shaped sliding block disposed on the first swinging member 600 and a first limiting sliding groove disposed on the spindle mechanism 210, where the first limiting sliding groove is an arc-shaped sliding groove, the first arc-shaped sliding block is slidably assembled in the first limiting sliding groove, a virtual axis defined by the first arc-shaped sliding block and the first limiting sliding groove is coaxial with a rotation axis of the first swinging member 600 rotating relative to the spindle mechanism 210, an arc length of the first limiting sliding groove is greater than an arc length of the first arc-shaped sliding block, two ends of the first limiting sliding groove are both sealing structures, and when the first swinging member 600 rotates relative to the spindle mechanism 210 to a first limiting position, one end of the first arc-shaped sliding block is abutted to one end of the first limiting sliding groove. When the first swinging member 600 rotates to the second limit position relative to the spindle mechanism 210, the other end of the first arc-shaped slider abuts against the other end of the first limit chute (not shown).

The second limiting structure 920 may include a second arc-shaped sliding block disposed on one of the first swinging member 600 and the second swinging member 700, and a second limiting sliding groove disposed on the other of the first swinging member 600 and the second swinging member 700, where the second limiting sliding groove is an arc-shaped sliding groove, the second arc-shaped sliding block is slidably assembled in the second limiting sliding groove, a virtual axis defined by the second arc-shaped sliding block and the second limiting sliding groove is coaxial with a rotation axis of the second swinging member 700 relative to the first swinging member 600, an arc length of the second limiting sliding groove is longer than an arc length of the second arc-shaped sliding groove, both ends of the second limiting sliding groove are sealing structures, and one end of the second arc-shaped sliding groove abuts against one end of the second limiting sliding groove when the second swinging member 700 rotates to the third limiting position relative to the first swinging member 600. When the second swinging member 700 rotates to the fourth limit position relative to the first swinging member 600, the other end of the second arc-shaped slider abuts against the other end of the second limit chute (not shown).

Fig. 10 is an assembly schematic diagram of a first swing member and a spindle mechanism of yet another hinge assembly according to an embodiment of the present disclosure.

As shown in fig. 10 and referring to fig. 8 and 9, in the embodiment of the present application, the first limiting structure 910 includes a first limiting block 911 disposed on the first swinging member 600 and a second limiting block 912 disposed on the spindle mechanism 210, and the second limiting block 912 is located on a rotation path of the first limiting block 911. When the first swinging member 600 rotates to the first limit position relative to the spindle mechanism 210, one end of the first limit block 911 abuts against one end of the second limit block 912. When the first swinging member 600 rotates to the second limit position relative to the spindle mechanism 210, the other end of the first limit block 911 abuts against the other end of the second limit block 912.

In this way, the first swinging member 600 and the spindle mechanism 210 are easy to assemble, and the first limiting structure 910 has simple limiting and matching, so that the first swinging member 600 can be conveniently limited to rotate between the first limiting position and the second limiting position relative to the spindle mechanism 210.

It will be appreciated that there is a space between at least one end of the first stopper 911 and the corresponding end of the second stopper 912 for the first stopper 911 to rotate. Specifically, when the foldable electronic device is in the folded state and the unfolded state, a space for the first stopper 911 to rotate is provided between one end of the first stopper 911 and the end corresponding to the second stopper 912, and the other end of the first stopper 911 abuts against the end corresponding to the second stopper 912. When the foldable electronic device is in an intermediate state between the folded state and the unfolded state, a space for the first limiting block 911 to rotate is provided between the two ends of the first limiting block 911 and the corresponding ends of the second limiting block 912.

The first stopper 911 and the second stopper 912 may have a cubic structure, a columnar structure, a mesa structure, or other irregular structure, etc.

In the embodiment of the present application, the first limiting block 911 and the second limiting block 912 are both in a fan-ring structure with an axis coincident with the rotation axis of the first swinging member 600 rotating relative to the spindle mechanism 210, the rotation axis of the first swinging member 600 rotating relative to the spindle mechanism 210 is located on the plane where the end face of the first limiting block 911 abutting against the second limiting block 912 is located, and the rotation axis of the first swinging member 600 rotating relative to the spindle mechanism 210 is located on the plane where the end face of the second limiting block 912 abutting against the first limiting block 911 is located.

Thus, the first limiting block 911 and the second limiting block 912 are relatively firmly abutted, and when the first swinging member 600 rotates to the first limiting position and the second limiting position relative to the spindle mechanism 210, the spindle mechanism 210 can relatively stably support the first swinging member 600. The structural strength of the first limiting block 911 and the second limiting block 912 of the fan-shaped annular structure is high, and the first limiting block 911 and the second limiting block 912 are not easy to damage when being mutually propped.

In the embodiment of the present application, a first sleeve 620 is disposed on the first swinging member 600, a first notch 212 corresponding to the first sleeve 620 is disposed on the spindle mechanism 210, a first connecting shaft 211 parallel to the axial direction of the spindle mechanism 210 is disposed in the first notch 212, and the first sleeve 620 is sleeved on the first connecting shaft 211 in the corresponding first notch 212 and is rotationally connected with the first connecting shaft 211 in the corresponding first notch 212, so that the first swinging member 600 is rotationally connected with the spindle mechanism 210.

The first limiting block 911 is disposed on an end surface of the first sleeve 620, and the second limiting block 912 is disposed on an inner wall of the first notch 212.

In this way, the first swinging member 600 is easily assembled with the spindle mechanism 210, and the first stopper 911 and the second stopper 912 are easily installed.

For example, the first stopper 911 may be integrally formed with the first sleeve 620. The second limiting block 912 may be integrally formed with an inner wall of the first notch 212.

In some examples, the second stopper 912 may be integrally formed with the first connection shaft 211, and the second stopper 912 protrudes from an outer wall of the first connection shaft 211. In this way, the first notch 212 is advantageously reduced in size to increase the strength of the spindle mechanism 210.

In the embodiment of the present application, the first swinging member 600 is provided with two first sleeves 620 that are coaxial and are disposed at intervals along the axial direction of the spindle mechanism 210. The end surface of each first sleeve 620 is provided with a first limiting block 911, and the inner wall of each first notch 212 is provided with a second limiting block 912.

In this way, when the first swinging member 600 rotates to the first limit position and the second limit position relative to the spindle mechanism 210, the spindle mechanism 210 is stable in supporting the first swinging member 600. In addition, the first swinging member 600 is also relatively stable to the rotation of the spindle mechanism 210.

Fig. 11 is an assembly schematic diagram of a second swing member and a first swing member of another hinge assembly according to an embodiment of the present disclosure. Fig. 12 is a schematic view of a second swing member and a first swing member of another hinge assembly according to an embodiment of the present disclosure after the second swing member and the first swing member are assembled.

As shown in fig. 11 and 12 and referring to fig. 8 and 9, in the embodiment of the present application, the second limiting structure 920 includes a third limiting block 921 disposed on the first swinging member 600 and a fourth limiting block 922 disposed on the second swinging member 700, and the fourth limiting block 922 is located on a rotation path of the third limiting block 921. When the second swinging member 700 rotates to the third limit position relative to the first swinging member 600, one end of the third limit block 921 abuts against one end of the fourth limit block 922. When the second swinging member 700 rotates to the fourth limit position with respect to the first swinging member 600, the other end of the third limit block 921 abuts against the other end of the fourth limit block 922.

In this way, the second swinging member 700 and the first swinging member 600 are easy to assemble, and the second limiting structure 920 has simple limiting and matching, so that the second swinging member 700 can be conveniently limited to rotate between the third limiting position and the fourth limiting position relative to the first swinging member 600.

It can be appreciated that a space for the third stopper 921 to rotate is provided between at least one end of the third stopper 921 and the end corresponding to the fourth stopper 922. Specifically, when the foldable electronic device is in the folded state and the unfolded state, a space for the third stopper 921 to rotate is provided between one end of the third stopper 921 and the end corresponding to the fourth stopper 922, and the other end of the third stopper 921 abuts against the end corresponding to the fourth stopper 922. When the foldable electronic device is in the intermediate state between the folded state and the unfolded state, a space for the third limiting block 921 to rotate is provided between the two ends of the third limiting block 921 and the ends corresponding to the fourth limiting block 922.

The third stopper 921 and the fourth stopper 922 may be in a cubic structure, a columnar structure, a mesa structure, or other irregular structure, etc.

In the embodiment of the present application, the third limiting block 921 and the fourth limiting block 922 may each have a fan-ring structure with an axis coinciding with a rotation axis of the second swinging member 700 rotating relative to the first swinging member 600, the rotation axis of the second swinging member 700 rotating relative to the first swinging member 600 may be located on a plane where the end face of the third limiting block 921 abutting against the fourth limiting block 922 is located, and the rotation axis of the second swinging member 700 rotating relative to the first swinging member 600 may also be located on a plane where the end face of the fourth limiting block 922 abutting against the third limiting block 921 is located.

Thus, the third limiting block 921 and the fourth limiting block 922 are relatively stable in abutting connection, and when the second swinging member 700 rotates to the third limiting position and the fourth limiting position relative to the first swinging member 600, the first swinging member 600 can stably support the second swinging member 700. The third limiting block 921 and the fourth limiting block 922 of the fan-shaped annular structure are high in structural strength, and the third limiting block 921 and the fourth limiting block 922 are not easy to damage when being mutually propped.

In the embodiment of the present application, one of the first swinging member 600 and the second swinging member 700 may be provided with a second sleeve 720, the other one of the first swinging member 600 and the second swinging member 700 is provided with a second gap 630 corresponding to the second sleeve 720, the second gap 630 is provided with a second connecting shaft 610 parallel to the axial direction of the spindle mechanism 210, and the second sleeve 720 is sleeved on the second connecting shaft 610 in the corresponding second gap 630 and is rotationally connected with the second connecting shaft 610 in the corresponding second gap 630, so that the second swinging member 700 is rotationally connected with the first swinging member 600. One of the third stopper 921 and the fourth stopper 922 is provided on an end surface of the second sleeve 720, and the other of the third stopper 921 and the fourth stopper 922 is provided on an inner wall of the second notch 630.

In this way, the second swinging member 700 is assembled with the first swinging member 600 easily, and the third stopper 921 and the fourth stopper 922 are provided easily.

It is understood that the second sleeve 720 may be disposed on the first swinging member 600, and in this case, the second swinging member 700 is provided with the second notch 630 corresponding to the second sleeve 720. The second swinging member 700 may be provided with a second sleeve 720, and in this case, the first swinging member 600 may be provided with a second notch 630 corresponding to the second sleeve 720.

The second sleeve 720 is disposed on the second swinging member 700, and the first swinging member 600 is provided with a second notch 630 corresponding to the second sleeve 720.

For example, the third stopper 921 or the fourth stopper 922 provided on the second sleeve 720 is integrated with the second sleeve 720, and the third stopper 921 or the fourth stopper 922 provided on the inner wall of the second gap 630 is integrated with the inner wall of the second gap 630.

In some examples, the third stopper 921 or the fourth stopper 922 provided on the inner wall of the second gap 630 may be integrally formed with the second connection shaft 610, and the third stopper 921 or the fourth stopper 922 provided on the inner wall of the second gap 630 protrudes from the outer wall of the second connection shaft 610. In this way, the second gap 630 is advantageously reduced in size.

In the embodiment of the present application, two opposite ends of the second sleeve 720 are provided with one of the third limiting block 921 and the fourth limiting block 922, and two opposite side inner walls of the second notch 630 are provided with the other one of the third limiting block 921 and the fourth limiting block 922.

In this way, when the second swinging member 700 rotates to the third limit position and the fourth limit position with respect to the first swinging member 600, the first swinging member 600 is stable in supporting the second swinging member 700.

In the embodiment of the present application, a side surface of the support 400 is provided with a space avoiding groove 430 for the second swing member 700 to swing.

In this way, the risk of the second swinging member 700 jamming with the supporting member 400 when the first swinging member 600 swings to drive the second swinging member 700 to move can be reduced, which is beneficial to increasing the area of the supporting surface of the supporting member 400.

In the embodiment of the present application, the first swinging member 600 is a bending member with an obtuse angle, and the distance from the end of the first swinging member 600 connected to the spindle mechanism 210 to the angle of the first swinging member 600 is greater than the distance from the end of the first swinging member 600 connected to the second swinging member 700 to the angle of the first swinging member 600.

In this way, the risk of the second swinging member 700 jamming with the supporting member 400 when the first swinging member 600 swings to drive the second swinging member 700 to move can be reduced.

Fig. 13 is an assembly schematic diagram of a second swing member and a support member of yet another hinge assembly according to an embodiment of the present application.

As shown in fig. 13 and referring to fig. 8 and 9, in the embodiment of the present application, one of the second swinging member 700 and the supporting member 400 is provided with a first linear chute 420, the other one of the second swinging member 700 and the supporting member 400 is provided with a first sliding portion 710 slidably engaged with the first linear chute 420, and the second swinging member 700 is slidably connected with the supporting member 400 through the first linear chute 420 and the first sliding portion 710. The first linear chute 420 includes opposite first and second planar chute walls, the first slider 710 includes opposite first and second sliding planes, the first planar chute wall is in surface contact with the first sliding plane, and the second planar chute wall is in surface contact with the second sliding plane.

In this way, a low secondary constraint is formed between the second swinging member 700 and the supporting member 400, and only one degree of freedom of sliding along the first linear chute 420 is provided between the two, which is beneficial to enabling the supporting member 400 to drive the second swinging member 700 to rotate, so that the first limiting structure 910 and the second limiting structure 920 are in limiting states when the foldable electronic device is in a folded state and an unfolded state, and the spindle mechanism 210 can support the supporting member 400 through the first swinging member 600 and the second swinging member 700. When the foldable electronic device is in the folded state and the unfolded state, the support of the support member 400 is stable, so that the first display screen 310 is protected.

It is understood that the first linear chute 420 may be formed on the second swinging member 700, and the supporting member 400 is provided with a corresponding first sliding portion 710. The first linear sliding groove 420 may also be formed on the supporting member 400, and in this case, the second swinging member 700 is provided with a corresponding first sliding portion 710.

The first sliding portion 710 may be integrally formed with the second swing member 700 or the support member 400 where it is located. In this way, the connection strength between the first sliding portion 710 and the second swinging member 700 or the supporting member 400 where it is located is high, and the first sliding portion 710 is not easy to fall off.

The first sliding portion 710 may have a prismatic, block-shaped structure, and the cross section of the first sliding portion 710 may be triangular, trapezoidal, rectangular, etc., and the shape of the inner cavity of the first linear chute 420 corresponds to the first sliding portion 710.

In the embodiment of the present application, the first plane slot wall of the first linear chute 420 is parallel to the second plane slot wall, and the first sliding plane and the second sliding plane of the first sliding portion 710 are parallel.

Thus, the first sliding portion 710 slides in the first linear chute 420 more stably, and the connection strength between the second swinging member 700 and the supporting member 400 is higher, so that the two are not easy to fall off.

In the embodiment of the present application, the first sliding portion 710 has a cubic structure.

In this way, the assembly precision between the first sliding portion 710 and the first linear chute 420 is improved, the virtual position of the first sliding portion 710 in the first linear chute 420 is reduced, and the precise control of the rotation of the second swinging member 700 by the supporting member 400 is facilitated.

In the embodiment of the present application, at least two opposite first linear sliding grooves 420 may be disposed on the support 400, at least part of the second swinging member 700 is located between the opposite first linear sliding grooves 420, and two sides of the second swinging member 700 are respectively provided with a first sliding portion 710 in sliding fit with the adjacent first linear sliding groove 420.

In this way, it is advantageous to improve the stability of sliding between the support 400 and the second swinging member 700, which are completely assembled.

In the embodiment of the present application, at least two opposite protrusions 410 may be disposed on one side of the support 400, and a first linear chute 420 is formed on the protrusions 410.

Thus, the first linear chute 420 is convenient to open, and the setting position of the first linear chute 420 is more flexible. In addition, the first sliding portion 710 is more conveniently assembled into the first linear chute 420.

In the embodiment of the present application, two ends of the first linear chute 420 penetrate the bump 410 where they are located.

In this way, the first sliding portion 710 is assembled more conveniently. In addition, when the first sliding portion 710 slides in the first linear sliding groove 420, the first sliding portion 710 may be partially located outside the first linear sliding groove 420, which is beneficial to shortening the length of the first linear sliding groove 420 and reducing the size of the bump 410.

In the embodiment of the present application, the sliding portions on both sides of the second swinging member 700 and the portions between the sliding portions on both sides are entirely of a cubic structure. In this way, the second swinging member 700 is small in size and weight.

Fig. 14 is an assembly schematic view of a support member and a connecting member of another hinge assembly according to an embodiment of the present application. Fig. 15 is a schematic view of a connection between a support member and a connecting member of another hinge assembly according to an embodiment of the present application in an unfolded state and a folded state.

As shown in fig. 14 and 15, in the embodiment of the present application, one of the support 400 and the connection member 500 is provided with a first arc-shaped sliding arm 450, the other of the support 400 and the connection member 500 is provided with a first arc-shaped sliding slot 520 corresponding to the first arc-shaped sliding arm 450, and the first arc-shaped sliding arm 450 is slidably assembled in the corresponding first arc-shaped sliding slot 520, so that the support 400 and the connection member 500 are rotatably connected, and the support 400 can rotate around a virtual axis defined by the first arc-shaped sliding arm 450 and the first arc-shaped sliding slot 520 relative to the connection member 500. In this way, the assembly of the support 400 and the connection member 500 is facilitated.

It is understood that the first arc chute 520 may be a quarter arc slot, a third arc slot, a half arc slot, etc., and the first arc slider 450 may be a quarter arc arm, a third arc arm, a half arc arm, etc.

In the embodiment of the present application, the first arc-shaped sliding arm 450 is in surface contact with the groove wall of the first arc-shaped sliding groove 520. In this way, the rotation of the support 400 and the connection 500 is stable.

In the embodiment of the present application, the end surfaces of both ends of the connecting piece 500 may be provided with the first arc chute 520. Thus, the support 400 and the connecting piece 500 are assembled conveniently, and the rotational connection between the support 400 and the connecting piece 500 is stable.

In an embodiment of the present application, at least one end of the first arcuate chute 520 extends through the connector 500. In this way, the first arc-shaped slider arms 450 are conveniently assembled into the corresponding first arc-shaped sliding grooves 520. In addition, when the first arc-shaped sliding arm 450 slides in the first arc-shaped sliding groove 520, the first arc-shaped sliding arm 450 can be partially positioned outside the first arc-shaped sliding groove 520, which is beneficial to shortening the length of the first arc-shaped sliding groove 520.

Fig. 16 is an assembly schematic diagram of a third swinging member and a connecting member of another hinge assembly according to an embodiment of the present application. Fig. 17 is a schematic view of a third swing member and a spindle mechanism of another hinge assembly according to an embodiment of the present disclosure after the third swing member and the spindle mechanism are assembled.

As shown in fig. 16 and 17, in the embodiment of the present application, each rotation mechanism 220 further includes a third swing member 800. One end of the third swinging member 800 is rotatably connected with the spindle mechanism 210, and the other end of the third swinging member 800 is slidably connected with the connecting member 500, so that the connecting member 500 is rotatably connected with the spindle mechanism 210, and the connecting member 500 can move in a direction approaching or separating from the spindle mechanism 210 during rotation relative to the spindle mechanism 210.

In this way, the rotational connection of the connection member 500 with the spindle mechanism 210 is facilitated, and the connection member 500 can be moved in a direction approaching or moving away from the spindle mechanism 210 during rotation relative to the spindle mechanism 210.

It will be appreciated that the third swing member 800 may be rotatably coupled to the spindle mechanism 210 via a solid axis about which the third swing member 800 may rotate relative to the spindle mechanism 210. The third swinging member 800 and the spindle mechanism 210 may be rotatably connected by an arc arm and a corresponding chute for defining a virtual axis, and the third swinging member 800 may rotate around the virtual axis relative to the spindle mechanism 210. Illustratively, one of the third swinging member 800 and the spindle mechanism 210 is provided with a fourth arc-shaped slide arm, and the other of the third swinging member 800 and the spindle mechanism 210 is provided with a fourth arc-shaped slide groove corresponding to the fourth arc-shaped slide arm, and the fourth arc-shaped slide arm is slidably mounted in the fourth arc-shaped slide groove, so that the third swinging member 800 is rotatably connected to the spindle mechanism 210, and the third swinging member 800 can rotate relative to the spindle mechanism 210 about a virtual axis (not shown) defined by the fourth arc-shaped slide groove and the fourth arc-shaped slide arm. It is understood that the fourth arc chute may be a quarter arc chute, a third arc chute, a half arc chute, etc., and the fourth arc runner may be a quarter arc runner, a third arc runner, a half arc runner, etc.

In the embodiment of the present application, the third swinging members 800 located at both sides of the spindle mechanism 210 may be drivingly connected through the gear set 830.

Thus, through the gear set 830, the two rotating mechanisms 220 on two sides of the spindle mechanism 210 can rotate synchronously, so that the hinge assembly 200 can be switched between the unfolded state and the folded state, and the foldable electronic device can be unfolded and folded conveniently.

In the embodiment of the present application, the third swing member 800 is rotatably connected to the spindle mechanism 210 through a fourth connection shaft (not shown), and the third swing member 800 is rotatable with respect to the spindle mechanism 210 about the fourth connection shaft.

In this embodiment, the gear set 830 may include an even number of transmission gears 831, each transmission gear 831 is rotatably connected to the spindle mechanism 210, two adjacent transmission gears 831 are meshed, the third swinging members 800 of the rotating mechanisms 220 on two sides of the spindle mechanism 210 are respectively located on two sides of the gear set 830, one end of the third swinging member 800 has a meshing tooth 820, and the third swinging member 800 is meshed with the adjacent transmission gears 831 through the meshing tooth 820 on the end of the third swinging member 800.

In this way, the connection piece 500 on one side of the spindle mechanism 210 is convenient to drive the third swinging piece 800 on the other side of the spindle mechanism 210 to swing, and the connection piece 500 and the third swinging piece 800 on the other side of the spindle mechanism 210 are convenient to unfold and fold the foldable electronic device.

It will be appreciated that the axis of the drive gear 831 extends axially of the spindle mechanism 210.

In this embodiment, one of the third swinging member 800 and the connecting member 500 is provided with a second linear chute 510, the other of the third swinging member 800 and the connecting member 500 is provided with a second sliding portion 810, the second sliding portion 810 is slidably assembled in the second linear chute 510, and the third swinging member 800 and the connecting member 500 are slidably connected through the second linear chute 510 and the second sliding portion 810.

In this way, the sliding connection of the third swing member 800 and the link member 500 is facilitated.

It is understood that the second linear chute 510 may be formed on the third swinging member 800, and the connecting member 500 is provided with a corresponding second sliding portion 810. The second linear sliding groove 510 may also be formed on the connecting member 500, and in this case, the third swinging member 800 is provided with a corresponding second sliding portion 810.

The second sliding portion 810 may be integrally formed with the third swing member 800 or the connection member 500 where it is located. In this way, the connection strength between the second sliding portion 810 and the third swinging member 800 or the connecting member 500 where it is located is high, and the second sliding portion 810 is not easy to fall off.

The second sliding portion 810 may have a prismatic, block-shaped structure, and the cross section of the second sliding portion 810 may be triangular, trapezoidal, rectangular, and the like, and the shape of the inner cavity of the second linear chute 510 corresponds to the second sliding portion 810.

In the embodiment of the present application, at least two opposite second linear sliding grooves 510 are formed on the connecting piece 500, at least a portion of the third swinging piece 800 is located between the two opposite second linear sliding grooves 510, and two sides of the third swinging piece 800 are respectively provided with a second sliding portion 810 in sliding fit with the second linear sliding grooves 510 adjacent thereto.

In this way, it is advantageous to improve the stability of sliding between the coupling member 500 and the third swing member 800 that are completely assembled.

In the embodiment of the present application, both ends of the second linear chute 510 penetrate the connecting member 500.

In this way, the second sliding portion 810 is conveniently fitted into the corresponding second linear chute 510. In addition, after the second sliding portion 810 and the second linear sliding groove 510 are assembled, a portion of the second sliding portion 810 may extend out of the second linear sliding groove 510, so as to facilitate shortening the length of the second linear sliding groove 510.

In the description of the embodiments of the present application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly coupled, indirectly coupled through intermediaries, in communication with each other, or in an interaction relationship between two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.

The terms first, second, third, fourth and the like in the description and in the claims of embodiments of the application and in the above-described figures, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the embodiments of the present application, and are not limited thereto; although embodiments of the present application have been described in detail with reference to the foregoing embodiments, it will be appreciated by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (20)

1. A hinge assembly, comprising:

the device comprises a main shaft mechanism and two rotating mechanisms which are positioned at two sides of the main shaft mechanism and are rotationally connected with the main shaft mechanism;

each of the rotating mechanisms includes: the device comprises a support piece, a connecting piece, a first swinging piece and a second swinging piece;

the connecting piece is rotationally connected with the main shaft mechanism, the connecting piece can move towards a direction close to or far away from the main shaft mechanism in the process of rotating relative to the main shaft mechanism, and one end of the supporting piece far away from the main shaft mechanism is rotationally connected with the connecting piece;

One end of the first swinging piece is rotationally connected with the main shaft mechanism, the other end of the first swinging piece is rotationally connected with one end of the second swinging piece, and the other end of the second swinging piece is slidably connected with the supporting piece, so that the supporting piece can move towards a direction approaching or far away from the main shaft mechanism under the driving of the connecting piece;

a first limiting structure is arranged at the rotary joint of the first swinging piece and the main shaft mechanism, so that the first swinging piece can rotate between a first limiting position and a second limiting position relative to the main shaft mechanism;

a second limiting structure is arranged at the rotation connection part of the first swinging piece and the second swinging piece, so that the second swinging piece can rotate between a third limiting position and a fourth limiting position relative to the first swinging piece;

when the hinge assembly is switched to a unfolding state, the first swinging piece rotates to the first limiting position relative to the main shaft mechanism, and the second swinging piece rotates to the third limiting position relative to the first swinging piece, so that the main shaft mechanism supports the supporting piece in the unfolding position through the first swinging piece and the second swinging piece;

When the hinge assembly is switched to a folding state, the first swinging piece rotates to the second limiting position relative to the main shaft mechanism, and the second swinging piece rotates to the fourth limiting position relative to the first swinging piece, so that the main shaft mechanism supports the supporting piece in the folding position through the first swinging piece and the second swinging piece.

2. The hinge assembly of claim 1, wherein the first limiting structure comprises a first limiting block provided on the first swinging member and a second limiting block provided on the spindle mechanism, the second limiting block being located in a rotational path of the first limiting block;

when the first swinging piece rotates to the first limiting position relative to the main shaft mechanism, one end of the first limiting block is abutted with one end of the second limiting block;

when the first swinging piece rotates to the second limiting position relative to the main shaft mechanism, the other end of the first limiting block is abutted with the other end of the second limiting block.

3. The hinge assembly according to claim 2, wherein the first stopper and the second stopper are both of a fanned annular structure having an axis coincident with a rotation axis of the first swinging member with respect to the spindle unit, the rotation axis of the first swinging member with respect to the spindle unit is located on a plane where an end face of the first stopper for abutting against the second stopper is located, and the rotation axis of the first swinging member with respect to the spindle unit is located on a plane where an end face of the second stopper for abutting against the first stopper is located.

4. The hinge assembly according to claim 2, wherein a first sleeve is arranged on the first swinging member, a first notch corresponding to the first sleeve is formed on the spindle mechanism, a first connecting shaft parallel to the axial direction of the spindle mechanism is arranged in the first notch, and the first sleeve is sleeved on the first connecting shaft in the corresponding first notch and is in rotational connection with the first connecting shaft in the corresponding first notch so as to enable the first swinging member to be in rotational connection with the spindle mechanism;

the first limiting block is arranged on the end face of the first sleeve, and the second limiting block is arranged on the inner wall of the first notch.

5. The hinge assembly of claim 4, wherein said first swinging member is provided with two of said first sleeves coaxial and spaced apart along the axial direction of said spindle mechanism;

each first sleeve end face is provided with a first limiting block, and each inner wall of the first notch is provided with a second limiting block.

6. The hinge assembly of claim 1, wherein the second limiting structure comprises a third limiting block provided on the first swinging member and a fourth limiting block provided on the second swinging member, the fourth limiting block being located in a rotational path of the third limiting block;

When the second swinging piece rotates to the third limiting position relative to the first swinging piece, one end of the third limiting block is abutted with one end of the fourth limiting block;

when the second swinging piece rotates to the fourth limiting position relative to the first swinging piece, the other end of the third limiting block is abutted with the other end of the fourth limiting block.

7. The hinge assembly according to claim 6, wherein the third stopper and the fourth stopper are both of a fanned annular structure having axes coincident with a rotation axis of the second swinging member with respect to the first swinging member, the rotation axis of the second swinging member with respect to the first swinging member is located on a plane where an end face of the third stopper for abutting against the fourth stopper is located, and the rotation axis of the second swinging member with respect to the first swinging member is located on a plane where an end face of the fourth stopper for abutting against the third stopper is located.

8. The hinge assembly according to claim 6, wherein one of the first swinging member and the second swinging member is provided with a second sleeve, the other of the first swinging member and the second swinging member is provided with a second notch corresponding to the second sleeve, the second notch is internally provided with a second connecting shaft parallel to the axial direction of the spindle mechanism, and the second sleeve is sleeved on the second connecting shaft in the corresponding second notch and is in rotary connection with the second connecting shaft in the corresponding second notch so as to enable the second swinging member to be in rotary connection with the first swinging member;

One of the third limiting block and the fourth limiting block is arranged on the end face of the second sleeve, and the other one of the third limiting block and the fourth limiting block is arranged on the inner wall of the second notch.

9. The hinge assembly of claim 8, wherein one of the third stopper and the fourth stopper is disposed at opposite ends of the second sleeve, and the other of the third stopper and the fourth stopper is disposed on opposite inner walls of the second notch.

10. The hinge assembly according to any one of claims 1 to 9, wherein a side surface of the support member is provided with a clearance groove for the second swing member to swing.

11. The hinge assembly of any one of claims 1-9, wherein the first swing member is a bent member having an obtuse included angle, and wherein a distance from an end of the first swing member connected to the spindle mechanism to the included angle of the first swing member is greater than a distance from an end of the first swing member connected to the second swing member to the included angle of the first swing member.

12. The hinge assembly according to any one of claims 1 to 9, wherein one of the second swinging member and the supporting member is provided with a linear chute, the other one of the second swinging member and the supporting member is provided with a sliding portion slidably engaged with the linear chute, and the second swinging member is slidably connected with the supporting member through the linear chute and the sliding portion;

The linear chute comprises a first plane chute wall and a second plane chute wall which are opposite, the sliding part comprises a first sliding plane and a second sliding plane which are opposite, the first plane chute wall is in surface contact with the first sliding plane, and the second plane chute wall is in surface contact with the second sliding plane.

13. The hinge assembly of claim 12, wherein the first planar slot wall of the linear chute is parallel to the second planar slot wall, the first sliding plane and the second sliding plane of the sliding portion being parallel.

14. The hinge assembly of claim 13, wherein the sliding portion is a cube-like structure.

15. The hinge assembly of claim 12, wherein the support member is provided with at least two opposing linear sliding grooves, at least a portion of the second swinging member is located between the opposing linear sliding grooves, and both sides of the second swinging member are respectively provided with the sliding portions slidably engaged with the adjacent linear sliding grooves.

16. The hinge assembly of claim 15, wherein at least two opposing tabs are provided on a side of the support member, the tabs having the linear chute formed thereon.

17. The hinge assembly of claim 16, wherein the two ends of the linear chute extend through the boss.

18. The hinge assembly of any one of claims 1-9, wherein each of the rotating mechanisms further comprises a third swing member;

one end of the third swinging piece is rotationally connected with the main shaft mechanism, the other end of the third swinging piece is slidingly connected with the connecting piece, so that the connecting piece is rotationally connected with the main shaft mechanism, and the connecting piece can move towards a direction approaching to or away from the main shaft mechanism in the process of rotating relative to the main shaft mechanism.

19. The hinge assembly of claim 18, wherein the third swinging members on both sides of the spindle mechanism are drivingly connected by a gear set.

20. A foldable electronic device, comprising at least: the hinge assembly of any one of claims 1-19, the first structural member, the second structural member;

the first structural component and the second structural component are respectively positioned at two sides of the hinge component, the first structural component is in fastening connection with a connecting piece adjacent to the first structural component in the hinge component, and the second structural component is in fastening connection with a connecting piece adjacent to the second structural component in the hinge component.

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