CN219202201U - Hinge assembly and foldable electronic device - Google Patents

Abstract

The embodiment of the application provides a hinge assembly and foldable electronic equipment, the hinge assembly includes: 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 support piece, the connecting piece and the first swinging piece. One end of the first swinging member is rotationally connected with the main shaft mechanism, the other end of the first swinging member is rotationally connected with the connecting member, the supporting member is connected with the connecting member through the high pair mechanism, one of the first swinging member and the supporting member is provided with a linear sliding chute, the other one of the first swinging member and the supporting member is provided with a sliding part which is in sliding fit with the linear sliding chute, and the first swinging member is in sliding connection with the low pair mechanism formed by the linear sliding chute and the sliding part. Therefore, the movement of the support piece of the hinge assembly is stable, the angle formed between the support piece and the main shaft mechanism is improved, and the protection of the flexible screen arranged on the foldable electronic equipment is facilitated.

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 hinge assembly, the movement of the support member is unstable, and the control accuracy of the angle formed between the support member and the spindle mechanism of the hinge assembly is low.

Disclosure of Invention

The embodiment of the application provides a hinge assembly and foldable electronic equipment, through making the low pair of mechanism connection that forms through sharp spout and sliding part between hinge assembly's support piece and the swinging member, connect through high pair of mechanism between hinge assembly's support piece and the connecting piece, can make hinge assembly's support piece's motion comparatively stable, do benefit to the angle that forms between hinge assembly's support piece and the spindle unit, do benefit to the protection to the flexible screen of installing on the foldable electronic equipment.

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 support, at least one connecting piece and at least one first swinging piece. One end of the first swinging member is rotationally connected with the main shaft mechanism, the other end of the first swinging member is rotationally connected with the connecting member, and the supporting member is connected with the connecting member through the high pair mechanism. One of the first swinging piece and the supporting piece is provided with a linear chute, the other one of the first swinging piece and the supporting piece is provided with a sliding part which is in sliding fit with the linear chute, and the first swinging piece and the supporting piece are in sliding connection with the sliding part through the linear chute. 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 opposite to the first sliding plane and is parallel to the first sliding plane, and the second plane chute wall is opposite to the second sliding plane and is parallel to the second sliding plane.

The hinge assembly that this application provided makes between hinge assembly's support piece and the first swing piece through the low auxiliary mechanism connection that straight line spout and sliding part formed, only along a gliding degree of freedom of straight line spout between support piece and the first swing piece, when the first swing piece swings, support piece is unanimous with the swing angle of first swing piece. The support piece is connected with the connecting piece through the high pair mechanism, other degrees of freedom required by the movement of the rotating mechanism can be released through the high pair mechanism connected with the support piece and the connecting piece, the folding electronic equipment is unfolded and folded, the movement of the support piece is stable, the position of the support piece and the angle formed between the support piece and the main shaft mechanism are controlled through the first swinging piece, the folding electronic equipment is unfolded and folded, the support of the support piece on the flexible screen installed on the folding electronic equipment is stable, and the protection of the flexible screen is facilitated.

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 support member is provided with at least two opposite linear sliding grooves, and a part of the first swinging member is located between the two opposite linear sliding grooves, and two sides of the first 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, an inlet and an outlet for the sliding part to enter and exit are formed in one end of the linear chute, which is far away from the main shaft mechanism.

In one possible implementation, the high-altitude sub-mechanism includes an arcuate chute provided on one of the support member and the connector member and a mating portion provided on the other of the support member and the connector member, the mating portion being movably fitted within the arcuate chute such that the support member is movable relative to the connector member.

In one possible implementation, the mating portion includes a cylinder that is slidably mounted in the arcuate slot, and the connector is rotatable about the cylinder during the sliding of the cylinder along the arcuate slot.

In one possible implementation, the matching portion includes an arc-shaped sliding arm disposed on the supporting member, and the connecting member is provided with an arc-shaped sliding slot, and the arc-shaped sliding arm is slidably assembled in the arc-shaped sliding slot. The arc chute comprises a first arc chute wall and a second arc chute wall which are opposite, the arc sliding arm comprises an inner arc surface and an outer arc surface which are opposite, the inner arc surface is used for being in line contact with the first arc chute wall, the outer arc surface is used for being in line contact with the second arc chute wall, so that the arc sliding arm can slide in the arc chute, and in the process that the arc sliding arm slides along the arc chute, the arc sliding arm can swing between the first arc chute wall and the second arc chute wall.

In one possible implementation, the first cambered surface groove wall is not parallel to the intrados surface and the second cambered surface groove wall is not parallel to the extrados surface.

In one possible implementation, the arcuate slide arm is disposed eccentrically to the arcuate slide slot.

In one possible implementation, each rotation mechanism further includes: and one end of the second swinging piece is rotationally connected with the main shaft mechanism, and the second swinging piece is in sliding connection with the connecting piece, so that when the connecting piece drives the second swinging piece to swing, the connecting piece can slide relative to the second swinging piece in a direction approaching to or separating from the main shaft mechanism. The second swinging parts positioned at the two sides of the main shaft mechanism are in transmission connection through a gear set.

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 of the hinge assembly is connected with the first swinging piece through the low auxiliary mechanism formed by the linear sliding groove and the sliding part, the supporting piece and the first swinging piece only have one degree of freedom sliding along the linear sliding groove, and when the first swinging piece swings, the swinging angle of the supporting piece and the swinging angle of the first swinging piece are consistent. The support piece is connected with the connecting piece through the high pair mechanism, other degrees of freedom required by the movement of the rotating mechanism can be released through the high pair mechanism connected with the support piece and the connecting piece, the folding electronic equipment is unfolded and folded, the movement of the support piece is stable, the position of the support piece and the angle formed between the support piece and the main shaft mechanism are controlled through the first swinging piece, the folding electronic equipment is unfolded and folded, the support of the support piece on the flexible screen installed on the folding electronic equipment is stable, and the protection of the flexible screen is facilitated.

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 side view of a hinge assembly according to an embodiment of the present application, switched between an extended state and a collapsed state;

FIG. 6 is a schematic view of one side of a rotating mechanism and a spindle mechanism of yet another hinge assembly according to the embodiments of the present application in an unfolded state;

FIG. 7 is a schematic view of one side of a rotating mechanism and a spindle mechanism of yet another hinge assembly according to the embodiments of the present application in a folded state;

FIG. 8 is a schematic view of an assembly of a swing member and a support member of yet another hinge assembly according to an embodiment of the present application;

FIG. 9 is a schematic view of an assembly of a swing member and a support member when switching between an extended state and a collapsed state according to another embodiment of the present application;

FIG. 10 is a schematic view illustrating an assembly of a connector and a support of yet another hinge assembly according to an embodiment of the present application;

FIG. 11 is a schematic view of the attachment and support assembly of FIG. 10;

FIG. 12 is a schematic view illustrating an assembly of a connector and a support of yet another hinge assembly according to an embodiment of the present application;

FIG. 13 is a schematic view of the hinge assembly of FIG. 12 in an assembled position of the connector and the support member when the hinge assembly is switched between an extended state and a collapsed state;

FIG. 14 is a schematic view of a spindle mechanism of yet another hinge assembly provided in accordance with an embodiment of the present application where a second swing member is assembled;

fig. 15 is an assembly schematic diagram of a second swinging member and a connecting member of another hinge assembly according to an embodiment of the present application.

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; 220. a rotating mechanism;

310. a first display screen; 311. a first display area; 312. a second display area; 313. a third display area;

320. a second display screen;

400. a support; 410. a mating portion; 411. a cylinder; 412. a first arcuate wiper arm; 4121. an intrados surface; 4122. an outer cambered surface; 420. a first linear chute; 421. a first planar slot wall; 422. a second planar slot wall; 430. a bump;

500. A connecting piece; 510. the first arc chute; 511. a first cambered surface groove wall; 512. a second cambered surface groove wall; 520. a second linear chute;

600. a first swinging member; 610. a first sliding portion; 611. a first sliding plane; 612. a second sliding plane; 620. a second arcuate wiper arm; 630. a pin shaft;

700. a second swinging member; 710. a second sliding part; 720. meshing teeth;

800. a gear set; 810. a transmission gear.

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 (not shown), with a hinge assembly 200 between adjacent first and second structural members 110 and 120 for connecting the 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, 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, and the third display area 313 is bent under the driving of the first display area 311 and the second display area 312 at two sides of the third display area 313, so that 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, and the third display area 313 is unfolded under the driving of the first display area 311 and the second display area 312 at two sides of the third display area 313, so that 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 side view of a hinge assembly of still another foldable electronic device according to an embodiment of the present application, switched between 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.

In this embodiment, each rotation mechanism 220 may include a support 400 and at least one connection member 500, where the support 400 is used to support the third display area 313 of the first display screen 310, the first structural member 110 is fastened to the connection member 500 adjacent to the first structural member 110 in the hinge assembly 200, the second structural member 120 is fastened to the connection member 500 adjacent to the second structural member 120 in the hinge assembly 200, and the connection member 500 is rotatably connected to the support 400.

It is understood that the connection member 500 may be a connection frame, a connection plate, a connection block, or the like. The support 400 may be a support plate, which may also be called a door panel, and 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 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, high auxiliary constraint is formed between the supporting member and the swinging member, and low auxiliary constraint is formed between the supporting member and the connecting member. 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, and the swinging member can rotate around the cylindrical pin in the sliding process of the cylindrical pin in the arc track groove. The support and the connecting piece can be rotatably connected through a solid shaft or an arc arm for defining a virtual shaft and a corresponding sliding groove so as to form low auxiliary restraint. In the related art, a plurality of degrees of freedom are arranged between the supporting piece and the swinging piece, when the swinging piece drives the supporting piece to move, the movement of the supporting piece is unstable, the position accuracy control of the supporting piece is poor, the control accuracy of an angle formed between the supporting piece and the main shaft mechanism is low, the supporting of the supporting piece to the first display screen is not facilitated, and the damage risk of the first display screen is high.

FIG. 6 is a schematic view of one side of a rotating mechanism and a spindle mechanism of yet another hinge assembly according to the embodiments of the present application in an unfolded state; fig. 7 is a schematic view of one side of a rotating mechanism and a spindle mechanism when still another hinge assembly according to an embodiment of the present application is in a folded state.

As shown in fig. 6 and 7, each rotation mechanism 220 may further include at least one first swinging member 600 in the embodiment of the present application based thereon. One end of the first swinging member 600 is rotatably connected to the spindle mechanism 210, and the other end of the first swinging member 600 is rotatably connected to the connecting member 500. The support 400 is connected with the connecting piece 500 through a high-secondary mechanism.

It will be appreciated that the support 400 and the connector 500 have at least two degrees of freedom after the support 400 and the connector 500 are coupled by the high-secondary mechanism.

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. The first and second structural members 110, 120 may be securely connected to adjacent connector members 500 by welding, soldering, fastening, etc.

The first swinging member 600 may be rotatably connected to the spindle mechanism 210 and the connecting member 500 through a physical axis, and the first swinging member 600 may rotate around the physical axis. The first swinging member 600 may be rotatably connected to the spindle mechanism 210 and the connecting member 500 through an arc arm and a corresponding chute for defining a virtual axis, and the first swinging member 600 may rotate around the virtual axis.

Illustratively, one end of the first swinging member 600 is rotatably connected to the connecting member 500 through a pin 630 and a corresponding mounting hole (not shown), the other end of the first swinging member 600 has a second arc-shaped sliding arm 620, a second arc-shaped sliding groove (not shown) corresponding to the second arc-shaped sliding arm 620 is formed on the spindle mechanism 210, and the second arc-shaped sliding arm 620 is slidably assembled in the corresponding second arc-shaped sliding groove, so that the first swinging member 600 is rotatably connected to the spindle mechanism 210, the first swinging member 600 can rotate relative to the spindle mechanism 210 around a virtual axis defined by the second arc-shaped sliding arm 620 and the second arc-shaped sliding groove, the second arc-shaped sliding arm 620 and the second arc-shaped sliding groove can be coaxially arranged, and the second arc-shaped sliding arm 620 is in surface contact with the second arc-shaped sliding groove, so that the rotation between the first swinging member 600 and the spindle mechanism 210 is more stable.

Alternatively, one end of the first swinging member 600 may be rotationally connected to the spindle mechanism 210 through a second arc-shaped sliding arm 620 and a second arc-shaped sliding slot in sliding fit, where the second arc-shaped sliding arm 620 and the second arc-shaped sliding slot may be coaxially arranged, and the second arc-shaped sliding arm 620 is in surface contact with the second arc-shaped sliding slot, so that the rotation between the first swinging member 600 and the spindle mechanism 210 is more stable; the other end of the first swinging member 600 may be rotatably connected to the connecting member 500 through a third arc-shaped sliding arm (not shown) and a third arc-shaped sliding groove (not shown) which are slidably engaged, and the third arc-shaped sliding arm and the third arc-shaped sliding groove may be coaxially disposed, and the third arc-shaped sliding arm and the third arc-shaped sliding groove are in surface contact with each other, so that the rotation between the first swinging member 600 and the connecting member 500 is more stable.

Alternatively, both ends of the first swinging member 600 may be rotatably connected to the spindle mechanism 210 and the connection member 500 through the pin shaft 630 and the corresponding mounting hole, respectively.

The second arc chute and the third arc chute can be quarter arc chute, third arc chute, half arc chute and the like. The second and third arcuate slide arms 620, 620 may be quarter-arc arms, third-arc arms, half-arc arms, etc.

In an example in which the spindle mechanism 210 is provided with the second arc chute, the spindle mechanism 210 may include a base (not shown) and an upper cover (not shown), the upper cover is connected to the base, a side of the base facing the upper cover has an arc recess, a side of the upper cover facing the base has an arc protrusion, the arc recess and the arc protrusion are opposite and are disposed at intervals, and the arc recess and the arc protrusion may define the second arc chute.

FIG. 8 is a schematic view of an assembly of a swing member and a support member of yet another hinge assembly according to an embodiment of the present application; fig. 9 is a schematic view of an assembly position of a swinging member and a supporting member when the hinge assembly is switched between an unfolded state and a folded state according to another embodiment of the present application.

As shown in fig. 8 and 9, in the embodiment of the present application, one of the first swinging member 600 and the supporting member 400 is provided with a first linear chute 420, and the other of the first swinging member 600 and the supporting member 400 is provided with a first sliding portion 610 slidably engaged with the first linear chute 420, and the first swinging member 600 and the supporting member 400 are slidably connected through the first linear chute 420 and the first sliding portion 610. The first linear chute 420 includes opposing first and second planar slot walls 421 and 422, and the first slide 610 includes opposing first and second slide planes 611 and 612. The first planar slot wall 421 is opposite to the first sliding plane 611 and parallel to each other, and the second planar slot wall 422 is opposite to the second sliding plane 612 and parallel to each other. It can be appreciated that the first plane groove wall 421 is in surface contact with the first sliding plane 611, and the second plane groove wall 422 is in surface contact with the second sliding plane 612, so that the first swinging member 600 swings the supporting member 400 during swinging, and the supporting member 400 can slide relative to the first swinging member 600 in a direction approaching or separating from the spindle mechanism 210.

In this way, a low pair of constraint is formed between the first swinging member 600 and the supporting member 400, only one degree of freedom is formed between the two degrees of freedom sliding along the first linear chute 420, when the first swinging member 600 swings, the swinging angle of the supporting member 400 is consistent with that of the first swinging member 600, other degrees of freedom required by the movement of the rotating mechanism 220 can be released through a high pair mechanism connecting the supporting member 400 and the connecting member 500, so that the foldable electronic device can be unfolded and folded, the movement of the supporting member 400 is stable, the position of the supporting member 400 and the angle formed between the supporting member 400 and the spindle mechanism 210 can be controlled through the first swinging member 600, the supporting of the supporting member 400 on the first display screen 310 is stable in the unfolding and folding process of the foldable electronic device, and the protection of the first display screen 310 is facilitated.

It is to be understood that the first linear chute 420 may be formed on the first swinging member 600, and the supporting member 400 is provided with a corresponding first sliding portion 610. The first linear chute 420 may also be formed on the support 400, and in this case, the first swinging member 600 is provided with a corresponding first sliding portion 610.

The first sliding portion 610 may be integrally formed with the first swing member 600 or the support member 400 in which it is located. In this way, the connection strength between the first sliding portion 610 and the first swinging member 600 or the supporting member 400 where it is located is high, and the first sliding portion 610 is not easy to fall off.

The first sliding portion 610 may have a prismatic, block-shaped structure, and the cross section of the first sliding portion 610 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 610.

In the embodiment of the present application, the first plane groove wall 421 of the first linear chute 420 is parallel to the second plane groove wall 422, and the first sliding plane 611 and the second sliding plane 612 of the first sliding portion 610 are parallel.

Thus, the first sliding portion 610 slides in the first linear chute 420 more stably, and the connection strength between the first swinging member 600 and the supporting member 400 is higher, so that the first swinging member and the supporting member are not easy to fall off.

In the embodiment of the present application, the first sliding portion 610 may be a cube. In this way, the assembly precision between the first sliding portion 610 and the first linear chute 420 is improved, the virtual position of the first sliding portion 610 in the first linear chute 420 is reduced, and the precise control of the first swinging member 600 on the supporting member 400 is facilitated.

In this embodiment, the support 400 may be provided with at least two opposite first linear sliding grooves 420, and a portion of the first swinging member 600 is located between the two opposite first linear sliding grooves 420, and two sides of the first swinging member 600 are respectively provided with a first sliding portion 610 in sliding fit with the adjacent first linear sliding grooves 420.

In this way, the stability of sliding between the support 400 and the first swinging member 600 after assembly is improved, and precise control of the support 400 by the first swinging member 600 is facilitated.

In this embodiment, a side of the support 400 may be provided with at least two opposite protrusions 430, and the protrusions 430 are provided with a first linear chute 420.

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 610 is more conveniently assembled into the first linear chute 420. In addition, the thickness and weight of the support 400 are also advantageously reduced.

In the embodiment of the present application, an end of the first linear chute 420 away from the spindle mechanism 210 is provided with an inlet and an outlet for the first sliding portion 610 to enter and exit.

In this way, the first sliding portion 610 is easily assembled and disassembled in the first linear chute 420. In addition, when the first sliding portion 610 slides in the first linear chute 420, the first sliding portion 610 may be partially located outside the first linear chute 420, so as to facilitate shortening the length of the first linear chute 420.

It is understood that the end of the first linear chute 420 near the spindle mechanism 210 may be a sealing structure or an opening structure.

The end of the first linear chute 420 near the spindle mechanism 210 is a sealing structure. When the hinge assembly 200 is in the folded state, an end of the first sliding portion 610 may be in contact with the sealing structure. In this way, it is advantageous to control the position of the support 400 when the foldable electronic device is in the folded state and the hinge assembly 200 is in the folded state.

When the end of the first linear chute 420 near the spindle mechanism 210 is a sealing structure, a gap may be formed between the end of the first sliding portion 610 and the sealing structure.

In the embodiment of the present application, the first linear chute 420 may be disposed obliquely to the supporting surface of the support 400. In this way, the first sliding portion 610 is advantageously inserted into the first linear chute 420. In addition, the first linear chute 420 and the first sliding portion 610 are also beneficial to applying the acting force for driving the support 400 to rotate to the support 400, so that the first sliding portion 610 and the first linear chute 420 are not easy to be blocked, and the sliding of the first sliding portion 610 in the first linear chute 420 is facilitated.

It is understood that the angle between the first linear chute 420 and the supporting surface of the supporting member 400 can be specifically set according to practical requirements.

FIG. 10 is a schematic view illustrating an assembly of a connector and a support of yet another hinge assembly according to an embodiment of the present application; fig. 11 is a schematic view of the joint of fig. 10 and the support.

As shown in fig. 10 and 11, in the embodiment of the present application, the high-secondary mechanism includes a first arc chute 510 provided on one of the support 400 and the connection member 500, and a mating portion 410 provided on the other of the support 400 and the connection member 500, and the mating portion 410 is movably fitted in the first arc chute 510 so that the support 400 can move relative to the connection member 500.

Thus, the coupling member 500 may be rotated with respect to the support member 400 about the virtual axis defined by the first arc chute 510 by the engagement portion 410 moving within the first arc chute 510, and the rotation angles of the support member 400 and the coupling member 500 may be varied during the unfolding and folding of the hinge assembly 200.

It is understood that the first arc chute 510 may be formed on the support member 400, and the corresponding engaging portion 410 is disposed on the connecting member 500. The first arc chute 510 may also be formed on the connecting piece 500, and the corresponding engaging portion 410 is disposed on the supporting piece 400.

The first arc chute 510 and the third arc chute may be a quarter arc chute, a third arc chute, a half arc chute, etc., and the center of the radial section of the first arc chute 510 is on the virtual axis defined by the first arc chute 510, and the first arc chute 510 may be formed on the end surface of the connecting piece 500 in the axial direction of the spindle mechanism 210 or on the end surface of the supporting piece 400 in the axial direction of the spindle mechanism 210.

In this embodiment, the mating portion 410 may include a cylinder 411, where the cylinder 411 is slidably mounted in the first arc chute 510, and the connecting member 500 may rotate around the cylinder 411 during the process that the cylinder 411 slides along the first arc chute 510.

In this way, the support member 400 has a degree of freedom to rotate about the virtual axis defined by the first arc chute 510 with respect to the connection member 500, and in addition, the support member 400 has a degree of freedom to rotate about the cylinder 411 with respect to the connection member 500, which is beneficial for satisfying the requirement of the degree of freedom of the rotation mechanism 220 of the foldable electronic device during the movement.

FIG. 12 is a schematic view illustrating an assembly of a connector and a support of yet another hinge assembly according to an embodiment of the present application; FIG. 13 is a schematic view of the hinge assembly of FIG. 12 in which the connector is assembled with the support member when the hinge assembly is switched between an extended state and a collapsed state.

As shown in fig. 12 and 13, in the embodiment of the present application, the mating portion 410 may include a first arc-shaped sliding arm 412 disposed on the support 400, and the connecting piece 500 is provided with a first arc-shaped sliding slot 510, where the first arc-shaped sliding arm 412 is slidably mounted in the first arc-shaped sliding slot 510. The first arc chute 510 includes a first arc chute wall 511 and a second arc chute wall 512 that are opposite, the first arc chute 412 includes an inner arc 4121 and an outer arc 4122 that are opposite, the inner arc 4121 is used for making line contact with the first arc chute wall 511, the outer arc 4122 is used for making line contact with the second arc chute wall 512, so that the first arc chute 412 can slide along the first arc chute 510, and the first arc chute 412 can swing between the first arc chute wall 511 and the second arc chute wall 512 in the process of the first arc chute 412 sliding along the first arc chute 510.

In this way, the support member 400 has a degree of freedom of rotation about the virtual axis defined by the first arc chute 510 with respect to the connector 500, and in addition, the support member 400 has a degree of freedom of rotation about the virtual axis defined by the first arc slider 412 with respect to the connector 500, so that the support member 400 can swing between the first arc chute wall 511 and the second arc chute wall 512 with respect to the connector 500, which is beneficial to meeting the requirement of the degree of freedom of the rotating mechanism 220 of the foldable electronic device during the movement.

It is understood that the first arc-shaped sliding arm 412 may be a quarter arc arm, a third arc arm, a half arc arm, etc., and the center of the radial cross section of the first arc-shaped sliding arm 412 is on the virtual axis defined by the first arc-shaped sliding arm 412.

In the present embodiment, the first cambered surface groove wall 511 is not parallel to the inner cambered surface 4121, and the second cambered surface groove wall 512 is not parallel to the outer cambered surface 4122. In this way, the first arcuate slide arm 412 and the first arcuate slide slot 510 facilitate a high secondary constraint.

In the embodiment of the present application, the first arc-shaped sliding arm 412 and the first arc-shaped sliding groove 510 are eccentrically disposed, and the space between the first arc-shaped groove wall 511 and the second arc-shaped groove wall 512 is larger than the space between the inner arc-shaped surface 4121 and the outer arc-shaped surface 4122.

In this way, it is easier to form a high secondary constraint with the first arcuate slide slot 510 by the first arcuate slide arm 412, and the first arcuate slide arm 412 moves smoothly within the first arcuate slide slot 510.

It will be appreciated that the virtual axis defined by the first arcuate runner 510 is parallel to and spaced apart from the virtual axis defined by the first arcuate runner 412.

FIG. 14 is a schematic view of a spindle mechanism of yet another hinge assembly provided in accordance with an embodiment of the present application where a second swing member is assembled; fig. 15 is an assembly schematic diagram of a second swinging member and a connecting member of another hinge assembly according to an embodiment of the present application.

In the embodiment of the present application, each rotation mechanism 220 may further include: at least one second swinging member 700, one end of the second swinging member 700 is rotatably connected with the spindle mechanism 210, and the second swinging member 700 is slidably connected with the connecting member 500, so that when the connecting member 500 drives the second swinging member 700 to swing, the connecting member 500 can slide relative to the second swinging member 700 in a direction approaching or separating from the spindle mechanism 210. The second swinging members 700 positioned at both sides of the spindle mechanism 210 are in transmission connection through the gear set 800.

In this way, the connection member 500 is slidably connected to the second swinging member 700, and the second swinging member 700 does not restrict the movement of the connection member 500 toward and away from the spindle mechanism 210, so that the connection member 500 can be moved toward and away from the spindle mechanism 210 during the unfolding and folding process of the foldable electronic device. Through the gear set 800, the two rotating mechanisms 220 at 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.

Illustratively, the second swinging member 700 may be rotatably coupled by a solid shaft about which the second swinging member 700 may be rotatably coupled to the spindle mechanism 210, and the second swinging member 700 may be mounted by a profile, spline, or fastening, etc., such that when the second swinging member 700 swings, the second swinging member 700 and the solid shaft to which it is coupled rotate together with respect to the spindle mechanism 210.

In this embodiment, the gear set 800 includes an even number of transmission gears 810, each transmission gear 810 is rotatably connected to the spindle mechanism 210, two adjacent transmission gears 810 are meshed, the second swinging members 700 of the rotating mechanisms 220 on two sides of the spindle mechanism 210 are respectively located on two sides of the gear set 800, one end of the second swinging member 700 has a meshing tooth 720, and the second swinging member 700 is meshed with the adjacent transmission gears 810 through the meshing tooth 720 on the end portion thereof.

In this way, the connector 500 on one side of the spindle mechanism 210 is conveniently driven to swing by the swinging of the connector 500 on the other side of the spindle mechanism 210, so that the foldable electronic device can be conveniently unfolded and folded.

It will be appreciated that the axis of the drive gear 810 extends axially of the spindle mechanism 210.

In the embodiment of the present application, one of the second swinging member 700 and the connecting member 500 is provided with a second linear chute 520, and the other of the second swinging member 700 and the connecting member 500 is provided with a second sliding portion 710, and the second sliding portion 710 is slidably fitted in the second linear chute 520, and the second swinging member 700 and the connecting member 500 are slidably connected through the second linear chute 520 and the second sliding portion 710.

In this way, the sliding connection of the second swinging member 700 and the connection member 500 is facilitated.

It is understood that the second linear chute 520 may be formed on the second swinging member 700, and the connecting member 500 is provided with the corresponding second sliding portion 710. The second linear sliding groove 520 may also be formed on the connecting member 500, and in this case, the second swinging member 700 is provided with a corresponding second sliding portion 710.

The second sliding portion 710 may be integrally formed with the second swing member 700 or the connection member 500 where it is located. In this way, the connection strength between the second sliding portion 710 and the second swinging member 700 or the connecting member 500 where it is located is high, and the second sliding portion 710 is not easy to fall off.

The second sliding portion 710 may have a prismatic, block-shaped structure, and the cross section of the second sliding portion 710 may be triangular, trapezoidal, rectangular, etc., and the shape of the inner cavity of the second linear chute 520 corresponds to the shape of the second sliding portion 710.

In this embodiment of the present application, at least two opposite second linear sliding grooves 520 may be formed on the connecting member 500, at least a portion of the second swinging member 700 is located between the two opposite second linear sliding grooves 520, and two sides of the second swinging member 700 are respectively provided with a second sliding portion 710 in sliding fit with the second linear sliding groove 520 adjacent thereto.

In this way, it is advantageous to improve the stability of sliding between the coupling member 500 and the second swinging member 700 that are completely assembled.

In the embodiment of the present application, both ends of the second linear chute 520 penetrate the connector 500.

This facilitates the assembly of the second slider 710 into the corresponding second linear chute 520. In addition, after the second sliding portion 710 and the second linear sliding groove 520 are assembled, a portion of the second sliding portion 710 may extend out of the second linear sliding groove 520, so as to facilitate shortening the length of the second linear sliding groove 520.

In the embodiment of the present application, the second linear chute 520 is disposed obliquely to the supporting surface of the spindle mechanism 210. Thus, the second sliding portion 710 is easily inserted into the second linear chute 520. In addition, the second linear sliding groove 520 and the second sliding portion 710 are also beneficial to applying an acting force for driving the second swinging member 700 to rotate around the spindle mechanism 210 to the second swinging member 700, so that the second sliding portion 710 and the second linear sliding groove 520 are not easy to be blocked, and the sliding of the second sliding portion 710 in the sliding of the second linear sliding groove 520 is facilitated.

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 (12)

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: a support, at least one connector and at least one first swinging member;

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 the connecting piece, and the supporting piece is connected with the connecting piece through a high-pair mechanism;

one of the first swinging piece and the supporting piece is provided with a linear chute, the other one of the first swinging piece and the supporting piece is provided with a sliding part which is in sliding fit with the linear chute, and the first swinging piece and the supporting piece are in sliding connection with the sliding part through the linear chute;

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 opposite to the first sliding plane and is parallel to the first sliding plane, and the second plane chute wall is opposite to the second sliding plane and is parallel to the second sliding plane.

2. The hinge assembly of claim 1, 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.

3. The hinge assembly according to claim 1, wherein the support member is provided with at least two opposed linear sliding grooves, a portion of the first swinging member is located between the opposed linear sliding grooves, and both sides of the first swinging member are respectively provided with the sliding portions in sliding engagement with the adjacent linear sliding grooves.

4. A hinge assembly according to claim 3, wherein at least two opposing lugs are provided on a side of the support member, the lugs being provided with the linear runner.

5. The hinge assembly according to any one of claims 1-4, wherein an end of the linear chute remote from the spindle mechanism is provided with an access opening for the sliding portion to enter and exit.

6. The hinge assembly of any one of claims 1-4, wherein the high-secondary mechanism includes an arcuate chute provided on one of the support member and the connector and a mating portion provided on the other of the support member and the connector, the mating portion being movably mounted within the arcuate chute such that the support member is movable relative to the connector.

7. The hinge assembly of claim 6, wherein the mating portion comprises a cylinder that is slidably mounted within the arcuate chute and the connector is rotatable about the cylinder during sliding movement of the cylinder along the arcuate chute.

8. The hinge assembly of claim 6, wherein the mating portion includes an arcuate slide arm disposed on the support member, the connecting member having the arcuate chute formed thereon, the arcuate slide arm slidably mounted within the arcuate chute;

the arc chute comprises a first cambered surface chute wall and a second cambered surface chute wall which are opposite, the arc chute comprises an inner cambered surface and an outer cambered surface which are opposite, the inner cambered surface is used for being in line contact with the first cambered surface chute wall, the outer cambered surface is used for being in line contact with the second cambered surface chute wall, the arc chute can slide in the arc chute, and in the process that the arc chute slides, the arc chute can swing between the first cambered surface chute wall and the second cambered surface chute wall.

9. The hinge assembly of claim 8, wherein the first cambered surface groove wall is non-parallel to the intrados surface and the second cambered surface groove wall is non-parallel to the extrados surface.

10. The hinge assembly of claim 8, wherein the arcuate slide arm is disposed eccentrically with respect to the arcuate slide slot.

11. The hinge assembly of any one of claims 1-4, wherein each of the swivel mechanisms further comprises: the connecting piece is connected with the spindle mechanism in a sliding way, so that when the connecting piece drives the second swinging piece to swing, the connecting piece can slide relative to the second swinging piece in a direction approaching to or separating from the spindle mechanism;

the second swinging pieces positioned at two sides of the main shaft mechanism are in transmission connection through a gear set.

12. A foldable electronic device, comprising at least: a hinge assembly according to any one of claims 1 to 11, a first structural member, a 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.

Images