CN116838697A

CN116838697A - Rotating mechanism and foldable electronic device

Info

Publication number: CN116838697A
Application number: CN202210287425.XA
Authority: CN
Inventors: 苏帅; 董长富; 董绍洪; 陈瑞豪
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2023-10-03

Abstract

The application provides a rotating mechanism and a foldable electronic device. The rotating mechanism comprises a fixed base, a first floating plate, a second floating plate, a first main swing arm and a second main swing arm. The first floating plate and the second floating plate are arranged on the fixed base side by side and can rotate relative to the fixed base. The first main swing arm is arranged in a first rotating groove of the fixed base and can slide along the first rotating groove. The second main swing arm is arranged in a second rotating groove of the fixed base and can slide along the second rotating groove. The first main swing arm and the second main swing arm rotate simultaneously and the rotation directions are opposite. The first main swing arm and the second main swing arm rotate to realize the relative rotation of the first floating plate and the second floating plate. The rotating mechanism provided by the application can solve the technical problem that the display screen is easy to squeeze when the foldable electronic equipment is in a folded state.

Description

Rotating mechanism and foldable electronic device

Technical Field

The present application relates to the field of electronic products, and in particular, to a rotating mechanism and a foldable electronic device.

Background

The flexible display screen has the property of being bendable, so that the electronic equipment carrying the flexible display screen, namely the foldable electronic equipment, can be switched between a folded state and a flattened state. Foldable electronic devices have a large display area and are increasingly popular with consumers. However, in the folding process of the existing foldable electronic device, the bending part of the flexible display screen is easy to be extruded, and finally the flexible display screen is damaged, so that the service life of the flexible display screen is influenced.

Disclosure of Invention

The application provides a rotating mechanism and foldable electronic equipment, which are used for solving the technical problem that a bending part is easy to squeeze in the folding process of a flexible display screen of the conventional foldable electronic equipment.

In a first aspect, the present application provides a rotary mechanism. The rotating mechanism comprises: fixed base, first kickboard, second kickboard, first main swing arm and second main swing arm. The fixed base is provided with a first rotating groove and a second rotating groove, and the first rotating groove and the second rotating groove are oppositely arranged. The first floating plate comprises a first side and a second side which are oppositely arranged, the second floating plate comprises a third side and a fourth side which are oppositely arranged, the first floating plate and the second floating plate are arranged side by side, the second side is opposite to the fourth side, the first floating plate and the second floating plate are both arranged on the fixed base, and the first side and the third side are respectively connected with the fixed base in a rotating mode.

The first main swing arm is installed in the first rotating groove, is arranged opposite to the first floating plate, and can slide along the first rotating groove. The second main swing arm is installed in the second rotating groove, is arranged opposite to the second floating plate, and can slide along the second rotating groove. The first main swing arm and the second main swing arm rotate simultaneously and in opposite rotation directions. The first main swing arm and the second main swing arm rotate to realize the relative rotation of the first floating plate and the second floating plate.

The rotating mechanism is applied to foldable electronic equipment, and the foldable electronic equipment comprises a display screen. In this embodiment, folding or unfolding of the foldable electronic device can be achieved by rotation of the rotation mechanism. When the foldable electronic equipment is in a folded state, the display screen is bent.

According to the rotating mechanism, the first floating plate and the second floating plate which can rotate are arranged, the first floating plate rotates through the rotation of the first main swing arm, the second floating plate rotates through the rotation of the second main swing arm, and the first floating plate and the second floating plate rotate and form an included angle when the first main swing arm and the second main swing arm are folded relatively, so that an avoidance space is formed, a bending space is provided for a display screen, the display screen is prevented from being extruded when the rotating mechanism is folded, and damage to the display screen is avoided. Meanwhile, the R angle formed when the display screen is bent can be avoided, so that the foldable part of the display screen cannot be bent at a larger angle, the undesirable phenomena of crease and the like of the display screen are avoided, and the service life of the display screen is prolonged. In addition, when the rotating mechanism is in a folding state, the first floating plate and the second floating plate are arranged at an included angle, so that the thickness of the rotating mechanism can be reduced, and the light and thin electronic equipment can be realized.

For convenience of description, the present application provides a first reference surface and a second reference surface. The first reference surface is perpendicular to the second direction, and the second reference surface is perpendicular to the first direction. In practice, the first reference surface and the second reference surface are also symmetrical surfaces of the rotating mechanism, and the rotating mechanism is axisymmetrical with respect to the first reference surface and the second reference surface. The first direction is the width direction of the rotating mechanism, and the second direction is the length direction of the rotating mechanism.

The first main swing arm and the second main swing arm are in mirror symmetry with respect to a second reference plane, the fixed base is symmetrical with respect to the first reference plane and the second reference plane, and the first floating plate and the second floating plate are symmetrical with respect to the second reference plane.

The rotating mechanism further comprises a third main swing arm and a fourth main swing arm, the third main swing arm is identical to the first main swing arm in structure, and the third main swing arm and the first main swing arm are symmetrical with respect to the first reference plane. The fourth main swing arm and the second main swing arm are identical in structure, and the fourth main swing arm and the second main swing arm are symmetrical with respect to the first reference plane. The third main swing arm and the fourth main swing arm rotate simultaneously with the first main swing arm and the second main swing arm so as to realize folding and unfolding of the rotating mechanism.

In one embodiment, the rotating mechanism has a flattened state and a folded state, and when the rotating mechanism is in the flattened state, the first main swing arm supports against the first floating plate, the second main swing arm supports against the second floating plate, and the first floating plate and the second floating plate are arranged side by side and in parallel. When the rotating mechanism is in a folding state, the first main swing arm releases the first floating plate, the second main swing arm releases the second floating plate, and the first floating plate and the second floating plate are arranged in an included angle.

In this embodiment, the rotation of the first floating plate is realized through the rotation of the first main swing arm, and the rotation of the second floating plate is realized through the rotation of the second main swing arm, so that the relative rotation of the first floating plate and the second floating plate is realized, the stability of the rotation of the first floating plate and the second floating plate can be realized, and the structure of the rotating mechanism is simplified. The term "abutting" refers to that when the main swing arm rotates, the end portion abuts against the floating plate and applies a force to the floating plate, so that the floating plate rotates relative to the fixed base. The term "release" as used herein means that the main swing arm loses its holding force against the floating plate, and the floating plate rotates relative to the fixed base under the action of gravity or other tensile force.

In one embodiment, when the first floating plate and the second floating plate are arranged at an included angle, the first floating plate and the second floating plate enclose to form an avoidance space. The avoidance space can provide bending space for the display screen so as to avoid the display screen from being extruded when being bent, and damage the display screen.

In one embodiment, the rotating mechanism includes a first elastic member, and the first elastic member connects the first floating plate and the fixed base. When the rotating mechanism is in a flattened state, the first floating plate pulls the first elastic piece, and the first elastic piece is in a stretched state. When the rotating mechanism is in a folded state, the first elastic piece is in a natural state or a compressed state.

The term "natural state" as used herein means that the first elastic member is not subjected to an external force in the elastic extension direction thereof, or the resultant force of the external forces is zero, and the first elastic member is not deformed in the elastic extension direction thereof. The first elastic member being in a compressed state means that the first elastic member is compressed by an external force and is compressed and deformed.

In this embodiment, when rotary mechanism is in the exhibition flat state, first floating plate and second floating plate are parallel arrangement side by side, and first elastic component is stretched, and first floating plate and second floating plate play the effect of supporting the display screen to guarantee the good demonstration of display screen. When the rotating mechanism is converted into a folding state from a flattening state, the first elastic piece elastically recovers, stretches the first floating plate, enables the first floating plate and the second floating plate to be arranged at an included angle and form an avoidance space, and accordingly provides a bending space for the display screen, so that the display screen is prevented from being extruded when being bent, and damage is caused to the display screen.

In one embodiment, the first elastic member is installed in the accommodating space, one end of the first elastic member is connected with the fixed base, and the other end of the first elastic member is fixedly connected with the first floating plate. The first main swing arm can rotate towards the direction close to the fixed base so as to prop against the first floating plate and stretch the first elastic piece, the first main swing arm can also rotate towards the direction far away from the fixed base so as to release the first floating plate, and the first elastic piece is elastically restored so as to enable the first floating plate to rotate towards the inside of the fixed base.

In this embodiment, through setting up first elastic component to when first main swing arm is expanded relative to fixed base, first main swing arm supports and holds first kickboard and tensile first elastic component, and when first main swing arm is folding relative to fixed base, first main swing arm release first kickboard, under the elastic restoring force effect of first elastic component, the pulling first kickboard rotates around first side to realize that first kickboard rotates relative to fixed base, with increase first kickboard pivoted stability and reliability.

In one embodiment, the rotating mechanism includes a second elastic member, the second elastic member is installed in the fixed base, one end of the second elastic member is connected with the fixed base, and the other end of the second elastic member is fixedly connected with the second floating plate. The second main swing arm can rotate towards the direction close to the fixed base so as to support the second floating plate and stretch the second elastic piece. The second main swing arm can also rotate towards the direction far away from the fixed base so as to release the second floating plate, and the second elastic piece is elastically restored so as to enable the second floating plate to rotate towards the inside of the fixed base.

In this embodiment, through setting up the second elastic component to when the relative fixed base of second main swing arm expands, the second main swing arm supports and holds the second kickboard and tensile second elastic component, and when the relative fixed base of second main swing arm is folding, the second kickboard is released to the second main swing arm, under the elastic restoring force effect of second elastic component, the pulling second kickboard rotates around the third side to realize that the second kickboard rotates relative fixed base, with increase second kickboard pivoted stability and reliability.

In one embodiment, the first main swing arm includes a first rotating body and a first swing body, the first rotating body is fixedly connected with the first swing body, and the first rotating body is installed in the first rotating groove and can slide along the first rotating groove; the second main swing arm comprises a second rotating body and a second swing body, the second rotating body is fixedly connected with the second swing body, and the second rotating body is installed in the second rotating groove and can slide along the second rotating groove. The first swinging body and the second swinging body can rotate towards the direction close to each other, so that the first swinging body and the second swinging body are driven to rotate towards the direction close to each other relative to the fixed base, the first swinging body abuts against the first floating plate, the second swinging body abuts against the second floating plate, and the first floating plate and the second floating plate are arranged side by side and in parallel, so that the rotating mechanism is in a flattening state.

The first swinging body and the second swinging body can rotate towards the direction away from each other, so that the first swinging body and the second swinging body are driven to rotate towards the direction away from each other relative to the fixed base, the first swinging body releases the first floating plate, the second swinging body releases the second floating plate, and the first floating plate and the second floating plate are arranged at an included angle, so that the rotating mechanism is in a folded state.

In this embodiment, the shape of the first rotating groove matches the shape of the first rotating body, and the first rotating body slides in the first rotation to make the first rotating body prop against the first floating plate or release the first floating plate, so as to realize the rotation of the first floating plate. The shape of the second rotating groove is matched with that of the second rotating body, and the second rotating body slides in the second rotating groove to enable the second rotating body to prop against the second floating plate or release the second floating plate, so that the second floating plate is rotated. In this embodiment, the first swinging body is driven to rotate by the rotation of the first swinging body, and the second swinging body is driven to rotate by the rotation of the second swinging body, so as to realize the folding or unfolding of the rotating mechanism. Therefore, the rotating stability of the first main swing arm and the second main swing arm can be improved, and the rotating stability of the rotating mechanism is ensured.

In one embodiment, the rotating mechanism comprises a first fixing plate and a second fixing plate, wherein the first fixing plate is rotationally connected with the first swinging body, and the second fixing plate is rotationally connected with the second swinging body. The first fixing plate can rotate relative to the fixed base so as to drive the first swinging body to rotate relative to the fixed base, and further drive the first main swinging arm to rotate relative to the fixed base; the second fixing plate can rotate relative to the fixing base so as to drive the second swinging body to rotate relative to the fixing base, and therefore the second main swinging arm is driven to rotate relative to the fixing base.

The first fixing plate is used for being fixedly connected with a first shell of the foldable electronic equipment, and the second fixing plate is used for being fixedly connected with a second shell of the foldable electronic equipment. When the first shell rotates relative to the fixed base, the first fixed plate is driven to rotate, so that the first main swing arm is driven to rotate. When the second shell rotates relative to the fixed base, the second fixing plate is driven to rotate, so that the second main swing arm is driven to rotate, folding or unfolding of the rotating mechanism is realized, and the rotating stability of the rotating mechanism and the foldable electronic equipment is further guaranteed.

In one embodiment, the rotating mechanism further comprises a first pressing plate and a second pressing plate, and the first pressing plate is in sliding connection with the first fixing plate. When the first fixing plate rotates relative to the fixing base, the first pressing plate can be driven to rotate relative to the fixing base. The second pressing plate is in sliding connection with the second fixing plate, and when the second pressing plate rotates relative to the fixing base, the second pressing plate can be driven to rotate relative to the fixing base.

The first pressing plate and the second pressing plate are arranged opposite to the display screen, and the first pressing plate and the second pressing plate support the display screen together with the first floating plate and the second floating plate, so that the stability of connection of the display screen is improved, and good display of the display screen is guaranteed. In this embodiment, the first fixing plate rotates to drive the first pressing plate to rotate, and the second fixing plate rotates to drive the second pressing plate to rotate, so that folding and unfolding of the display screen are achieved. And through with first clamp plate and first fixed plate sliding connection, second clamp plate and second fixed plate sliding connection for the contained angle is adjustable between first clamp plate and the second clamp plate, thereby can adapt to the folding angle of the collapsible part of display screen.

In one embodiment, the first fixing plate is provided with a first sliding groove, the first pressing plate comprises a first sliding block, the first pressing plate and the first fixing plate are arranged in a stacked mode, the first sliding block is located in the first sliding groove, and the first sliding block can slide along the first sliding groove. The second fixed plate is provided with a third sliding groove, the second pressing plate comprises a second sliding block, the second pressing plate and the second fixed plate are arranged in a stacked mode, the second sliding block is located in the third sliding groove, and the second sliding block can slide along the third sliding groove.

In this embodiment, through setting up first slider at first clamp plate, set up at first fixed plate with first slider complex first spout to slide in first spout through first slider, realize first clamp plate and first fixed plate sliding connection, thereby can promote first clamp plate relative first fixed plate gliding stability. Through setting up the second slider at the second clamp plate, set up at the second fixed plate with second slider complex third spout to slide in the third spout through the second slider, realize second clamp plate and second fixed plate sliding connection, thereby can promote the gliding stability of second clamp plate relative second fixed plate.

In one embodiment, the rotating mechanism further comprises a synchronous swing arm, wherein the synchronous swing arm comprises a first synchronous swing body, a second synchronous swing body and a synchronous gear, and the first synchronous swing body and the second synchronous swing body are respectively connected to two opposite sides of the synchronous gear; the synchronous gear is installed in the fixed base, the first synchronous swinging body is in sliding connection with the first fixed plate, and the second synchronous swinging body is in sliding connection with the second fixed plate. When the first fixed plate rotates relative to the fixed base, the first synchronous swinging body can be driven to rotate relative to the fixed base, so that the second synchronous swinging body is driven to rotate relative to the fixed base through the synchronous gear, and the second fixed plate is driven to rotate relative to the fixed base.

In this embodiment, through setting up synchronous swing arm for when first fixed plate rotates, can drive the rotation of second fixed plate through synchronous swing arm, thereby realize the synchronous rotation of first fixed plate and second fixed plate, and then promote slewing mechanism pivoted convenience and reliability, promote user's use experience.

In one embodiment, the rotating mechanism further comprises a first pressing plate swing arm and a second pressing plate swing arm, one end of the first pressing plate swing arm is rotationally connected with the fixed base, the other end of the first pressing plate swing arm is in sliding connection with the first pressing plate, and when the first pressing plate rotates relative to the fixed base, the first pressing plate swing arm can be driven to rotate relative to the fixed base. One end of the second pressing plate swing arm is rotationally connected with the fixed base, the other end of the second pressing plate swing arm is in sliding connection with the second pressing plate, and when the second pressing plate rotates relative to the fixed base, the second pressing plate swing arm can be driven to rotate relative to the fixed base.

In this embodiment, through setting up first clamp plate swing arm to drive first clamp plate swing arm through first clamp plate and rotate, thereby realize that first clamp plate relative fixed base rotates, and then can promote first clamp plate pivoted stability. And through setting up the second clamp plate swing arm to drive second clamp plate swing arm through the second clamp plate and rotate, thereby realize that the second clamp plate rotates relative fixed base, and then can promote second clamp plate pivoted stability.

In one embodiment, the rotating mechanism comprises a damping member, the damping member contacts the synchronous gear, and a damping force is generated between the damping member and the synchronous gear when the synchronous gear rotates.

In this embodiment, when the synchromesh rotates, damping force is provided between the synchromesh and the damping member, so that the opening and closing hand feeling of the rotating mechanism can be improved, and the use experience of a user is improved.

In a second aspect, the present application provides a foldable electronic device, including a first housing, a second housing, a display screen, and the rotating mechanism described above. The rotating mechanism is connected between the first shell and the second shell, and the display screen is arranged on the first shell, the second shell and the rotating mechanism. When the rotating mechanism rotates, the first shell and the second shell rotate relatively, so that the display screen is driven to bend or unfold.

When the foldable electronic equipment is in a flattened state, the first shell and the second shell are unfolded relatively, and the rotating mechanism is in a flattened state. When the foldable electronic equipment is in a folded state, the first shell and the second shell are relatively folded, and the rotating mechanism is in a folded state. The foldable electronic device provided by the embodiment adopts the rotating mechanism, and when the rotating mechanism is in a folded state, the first floating plate and the second floating plate are arranged at an included angle and form the avoiding space, so that a bending space is provided for the display screen, the foldable electronic device is in the folded state and cannot squeeze the display screen, and damage to the display screen is avoided, so that the service life of the display screen is prolonged.

In one embodiment, the display screen includes a first portion, a second portion, and a foldable portion, the foldable portion is connected between the first portion and the second portion, the first portion is mounted to the first housing, the second portion is mounted to the second housing, and the foldable portion is disposed opposite to the rotating mechanism.

When the folding electronic equipment is in a flattening state, the first shell, the second shell and the rotating mechanism support the display screen together, so that normal display of the display screen is guaranteed, large-screen display is realized, and the use experience of a user is improved. When the foldable electronic equipment is in a folded state, the foldable part of the display screen is bent, and the first part and the second part are arranged oppositely. At this time, the display screen is located between first casing and the second casing, and the display screen exposes the area little, but the probability of greatly reduced display screen by the damage realizes the effective protection to the display screen. Meanwhile, the first floating plate and the second floating plate of the rotating mechanism form an avoidance space when the included angle is set, so that bending deformation of the foldable part can be avoided, the display screen is prevented from being extruded, and damage is caused to the display screen.

In an implementation mode, when the foldable electronic equipment is in a folding state, the first floating plate and the second floating plate are arranged at an included angle to form an avoidance space, at least part of the foldable part is positioned in the avoidance space, so that the foldable part cannot be bent at a larger angle, adverse phenomena such as crease and the like of a display screen are avoided, and the service life of the display screen is prolonged.

In summary, according to the rotating mechanism provided by the application, the first floating plate and the second floating plate are rotatable, the first floating plate is rotated through the rotation of the first main swing arm, and the second floating plate is rotated through the rotation of the second main swing arm, so that the first floating plate and the second floating plate rotate and form an included angle when the first main swing arm and the second main swing arm are relatively folded, and an avoidance space is formed, so that a bending space is provided for the display screen, the display screen is prevented from being extruded when the rotating mechanism is folded, and damage to the display screen is avoided. Meanwhile, the R angle formed when the display screen is bent can be avoided, so that the foldable part of the display screen cannot be bent at a larger angle, the undesirable phenomena of crease and the like of the display screen are avoided, and the service life of the display screen is prolonged. In addition, when the rotating mechanism is in a folding state, the first floating plate and the second floating plate are arranged at an included angle, so that the thickness of the rotating mechanism can be reduced, and the light and thin electronic equipment can be realized.

Drawings

In order to more clearly describe the embodiments of the present application or the technical solutions in the background art, the following description will describe the drawings that are required to be used in the embodiments of the present application or the background art.

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

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

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

FIG. 4 is a schematic diagram of an exploded structure of the foldable electronic device of FIG. 3;

FIG. 5 is a schematic view of a rotating mechanism in the foldable electronic device of FIG. 4;

FIG. 6 is a partially exploded view of the rotation mechanism of FIG. 5;

FIG. 7 is a partially exploded view of the stationary base of the rotating mechanism of FIG. 5;

FIG. 8 is a cross-sectional view of the stationary base of the rotating mechanism of FIG. 5;

FIG. 9 is a schematic view of a portion of the rotation mechanism shown in FIG. 5;

FIG. 10 is a schematic view of a portion of the rotary mechanism of FIG. 5 in a folded state;

FIG. 11 is an enlarged schematic view of the first and second fixed plates of the rotary mechanism of FIG. 6;

FIG. 12 is an enlarged schematic view of the first and second platens of the rotating mechanism of FIG. 6;

FIG. 13 is a schematic view of a portion of the rotary mechanism of FIG. 5;

FIG. 14 is an enlarged schematic view of the first and second main swing arms of the swing mechanism of FIG. 6;

FIG. 15 is a schematic view of a portion of the rotary mechanism of FIG. 5;

FIG. 16 is a cross-sectional view of the rotary mechanism of FIG. 5 in a flattened state;

FIG. 17 is a cross-sectional view of the rotary mechanism of FIG. 5 in a folded state;

FIG. 18 is an enlarged schematic view of a synchronous swing arm in the rotary mechanism of FIG. 6;

FIG. 19 is a schematic view of a portion of the rotary mechanism of FIG. 5;

FIG. 20 is an enlarged schematic view of the first and second platen swing arms of the rotary mechanism of FIG. 5;

FIG. 21 is a cross-sectional view of the rotation mechanism of FIG. 5 in a flattened state;

FIG. 22 is a schematic view of a portion of the rotary mechanism of FIG. 5 in a folded state;

fig. 23 is a schematic view of a part of the foldable electronic device shown in fig. 1 in a folded state.

Detailed Description

Embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

The bending part of the flexible display screen is easy to be extruded by the supporting piece in the folding process of the conventional foldable electronic equipment, so that the flexible display screen is folded, and even the flexible display screen is damaged, and the service life of the flexible display screen is influenced. The rotating mechanism and the foldable electronic equipment provided by the embodiment of the application can prevent the bending part of the flexible display screen from being extruded, and are beneficial to prolonging the service life of the display screen.

Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of a foldable electronic device 500 in a first state, fig. 2 is a schematic structural diagram of a foldable electronic device 500 in a second state, and fig. 3 is a schematic structural diagram of a foldable electronic device 500 in a third state according to an embodiment of the present application.

For convenience of description, the width direction of the foldable electronic device 500 is defined as an X direction, the length direction of the foldable electronic device 500 is defined as a Y direction, and the thickness direction of the foldable electronic device 500 is defined as a Z direction. The X direction, the Y direction and the Z direction are perpendicular to each other.

The foldable electronic device 500 includes, but is not limited to, a cell phone, a notebook (notebook computer), a tablet (tablet personal computer), a laptop (laptop computer), a personal digital assistant (personal digital assistant), a wearable device (wearable device), a vehicle-mounted device (mobile device), or the like. In the embodiment of the present application, the foldable electronic device 500 is taken as an example of a mobile phone.

The foldable electronic device 500 shown in fig. 1 is in a folded state, the foldable electronic device 500 shown in fig. 2 is in a semi-unfolded state, and the foldable electronic device 500 shown in fig. 3 is in a flattened state. The unfolding angle α of the foldable electronic device 500 shown in fig. 2 is 90 degrees, and the unfolding angle β of the foldable electronic device 500 shown in fig. 3 is 180 degrees.

It should be noted that the angles illustrated in the embodiments of the present application allow for slight deviations. For example, the angle α of expansion of the foldable electronic device 500 shown in fig. 2 is 90 degrees, which means that α may be 90 degrees, or may be about 90 degrees, such as 80 degrees, 85 degrees, 95 degrees, 100 degrees, or the like. The angle β of the foldable electronic device 500 shown in fig. 3 is 180 degrees, which means that β may be 180 degrees, or may be about 180 degrees, such as 170 degrees, 175 degrees, 185 degrees, 190 degrees, etc. The angles illustrated hereinafter are to be understood identically.

The foldable electronic device 500 according to the embodiment of the present application is an electronic device that can be folded once. In other embodiments, the foldable electronic device 500 may also be an electronic device that may be folded multiple times (more than twice). At this time, the foldable electronic device 500 may include a plurality of portions, and two adjacent portions may be relatively close to be folded to the foldable electronic device 500 in a folded state, and two adjacent portions may be relatively far away from be unfolded to the foldable electronic device 500 in a flattened state.

Referring to fig. 4, fig. 4 is an exploded view of the foldable electronic device 500 shown in fig. 3.

The foldable electronic device 500 includes a folding apparatus 200 and a display screen 300, and the display screen 300 is mounted to the folding apparatus 200. The display 300 includes a display surface 340 and a mounting surface 350, the display surface 340 and the mounting surface 350 being disposed opposite. The display surface 340 is used for displaying text, images, videos, and the like. The display 300 includes a first portion 310, a second portion 320, and a foldable portion 330. The foldable portion 330 is located between the first portion 310 and the second portion 320, and the foldable portion 330 may be bent in the Y direction. In this embodiment, the display 300 is a flexible display, such as an organic light-emitting diode (OLED) display, an active-matrix organic light-emitting diode (AMOLED) display, a mini-led (mini organic lightemitting diode) display, a micro-led (micro organic light-emitting diode) display, a micro-organic led (micro organic light-emitting diode) display, and a quantum dot led (quantum dot light emitting diodes, QLED) display.

The folding device 200 includes a first housing 210, a second housing 220, and a rotating mechanism 100, the first housing 210 is provided with a first mounting groove 230, the second housing 220 is provided with a second mounting groove 240, and the first mounting groove 230 and the second mounting groove 240 are communicated to form a mounting groove. The rotation mechanism 100 is installed in the installation groove and fixedly connected with the first housing 210 and the second housing 220 to achieve rotation connection between the first housing 210 and the second housing 220. The first housing 210 and the second housing 220 are relatively rotatable by the rotation mechanism 100 so that the folding apparatus 200 is switched between the folded state and the unfolded state.

The relative rotation of the first housing 210 and the second housing 220 causes the folding device 200 to be in a folded state, which means that the first housing 210 and the second housing 220 rotate through the rotation mechanism 100 and approach each other, and the surfaces of the first housing 210 and the second housing 220 carrying the display screen 300 are opposite. In fact, in the application process, when the folding device 200 is in the fully folded state, the first portion 310 and the second portion 320 are stacked and partially contacted after the display 300 mounted on the first housing 210 and the second housing 220 is folded, and of course, the first portion and the second portion may be fully contacted. The first housing 210 and the second housing 220 relatively rotate to enable the folding device 200 to be in a semi-unfolded state, which means that the first housing 210 and the second housing 220 rotate through the rotating mechanism 100 and are far away from each other, and an included angle between the first housing 210 and the second housing 220 is larger and larger, and can approach 90 degrees or equal to 90 degrees. The relative rotation of the first housing 210 and the second housing 220 causes the folding device 200 to be in a flattened state, which means that the first housing 210 and the second housing 220 rotate through the rotation mechanism 100 and are away from each other, and the included angle between the first housing 210 and the second housing 220 continues to increase, which may approach 180 degrees or equal to 180 degrees.

The first housing 210, the second housing 220, and the rotation mechanism 100 are disposed in order along the X direction and the sum of the dimensions of the three is the dimension of the folding device 200 in the X direction (including the assembly tolerance and the assembly gap between the three). The size of the folding device 200 in the X direction is the same as the size of the display 300 and the electronic apparatus in the X direction. Of course, the allowable tolerance ranges are included. The first housing 210, the second housing 220, and the rotating mechanism 100 are the same in size in the Y direction, which may allow for assembly or production tolerances. The dimensions of the first housing 210, the second housing 220, and the rotating mechanism 100 along the Y direction are the dimensions of the folding device 200 along the Y direction, and the dimensions of the folding device 200 along the Y direction are the same as the dimensions of the display 300 and the foldable electronic device 500 along the Y direction. Of course, small deviations (assembly and production tolerances) may also be tolerated. The display 300 is mounted on the folding device 200, and the mounting surface 350 is fixedly connected with the folding device 200. Specifically, the first housing 210 carries a first portion 310 and the second housing 220 carries a second portion 320. In other words, the first portion 310 is mounted to the first housing 210, and the second portion 320 is mounted to the second housing 220. Wherein the rotating mechanism 100 is disposed opposite the foldable portion 330.

Referring to fig. 1, the first housing 210 and the second housing 220 are relatively rotated by the rotating mechanism 100, and the display screen 300 is driven to be folded by relatively approaching the first housing 210 and the second housing 220, so that the foldable electronic device 500 is folded. When the foldable electronic device 500 is in the folded state, the foldable portion 330 of the display screen 300 is bent, and the first portion 310 and the second portion 320 are disposed opposite to each other. At this time, the display screen 300 is located between the first housing 210 and the second housing 220, so that the probability of damaging the display screen 300 can be greatly reduced, and effective protection of the display screen 300 can be achieved.

Referring to fig. 2 and fig. 4 together, the first housing 210 and the second housing 220 relatively rotate through the rotation mechanism 100, and the first housing 210 and the second housing 220 relatively move away from each other to drive the display 300 to be unfolded, so that the foldable electronic device 500 is unfolded to a half-unfolded state. When the foldable electronic device 500 is in the semi-unfolded state, the first housing 210 and the second housing 220 are unfolded to have an included angle α, and the first portion 310 and the second portion 320 are relatively unfolded and drive the foldable portion 330 to be unfolded. At this time, the angle between the first portion 310 and the second portion 320 is α. In this embodiment, α is 90 degrees. In other embodiments, α may be about 90 degrees, 80 degrees, 85 degrees, 95 degrees, 100 degrees, or the like.

Referring to fig. 3 and fig. 4 together, the first housing 210 and the second housing 220 relatively rotate through the rotation mechanism 100, and the display screen 300 is further unfolded by relatively moving away the first housing 210 and the second housing 220 until the foldable electronic device 500 is in a flattened state. When the folding apparatus 200 is in the flattened state, the angle between the first housing 210 and the second housing 220 is β. The foldable portion 330 is unfolded and the first portion 310 and the second portion 320 are relatively unfolded. At this time, the included angles between the first portion 310, the second portion 320 and the foldable portion 330 are β, and the display screen 300 has a large-area display area, so as to realize large-screen display of the foldable electronic device 500, and improve the use experience of the user. In this embodiment, β is 180 degrees. In other embodiments, β may also be about 180 degrees, may be 170 degrees, 175 degrees, 185 degrees, 190 degrees, etc.

It should be noted that, the included angle α and the included angle β are included angles between the first housing 210 and the second housing 220, which are only used herein to distinguish the angle between the first housing 210 and the second housing 220 of the foldable electronic device 500 in different states. Wherein the included angle α is an angle between the first housing 210 and the second housing 220 when the foldable electronic device 500 is in the semi-flattened state; the included angle β refers to an angle between the first housing 210 and the second housing 220 when the foldable electronic device 500 is in the flattened state.

Referring to fig. 5, fig. 5 is a schematic structural diagram of the rotating mechanism 100 in the foldable electronic device 500 shown in fig. 4.

For convenience of description, the present application provides a first reference plane O and a second reference plane P. The first reference plane O is perpendicular to the Y direction, and the second reference plane P is perpendicular to the X direction. In practice, the first reference plane O and the second reference plane P are also symmetrical planes of the rotating mechanism 100, and the rotating mechanism 100 is symmetrical with respect to the first reference plane O and the second reference plane P. In other embodiments, the rotation mechanism 100 may also be a partially symmetrical structure, or a centrosymmetric structure, or a partially centrosymmetric structure.

Referring to fig. 6, fig. 6 is a partially exploded view of the rotating mechanism 100 shown in fig. 5.

The rotating mechanism 100 includes a fixed base 10, a pressing plate 20, a fixed plate 30, a rotating assembly, and a floating plate 40. The rotating assembly includes a main swing arm 50, a synchronizing swing arm 60, and a platen swing arm 70. The floating plate 40 is mounted on the fixed base 10, and the floating plate 40 can rotate relative to the fixed base 10. The pressing plate 20 is mounted on the fixing plate 30, and the pressing plate 20 can slide relative to the fixing plate 30. The rotating assembly is mounted on the fixed base 10 and can rotate relative to the fixed base 10. The main swing arm 50, the synchronization swing arm 60, and the platen swing arm 70 are sequentially arranged along the length direction of the fixed base 10. The main swing arm 50 is rotatably connected with the fixed plate 30, the synchronous swing arm 60 is slidably connected with the fixed plate 30, and the pressing plate swing arm 70 is slidably connected with the pressing plate 20. The foldable portion 330 of the display screen 300 is disposed opposite the floating plate 40 and the pressing plate 20.

When the fixed plate 30 rotates relative to the fixed base 10, the main swing arm 50 is driven to rotate relative to the fixed base 10, and the main swing arm 50 is made to abut against or release the floating plate 40, so that the floating plate 40 rotates relative to the fixed base 10. When the fixed plate 30 rotates relative to the fixed base 10, the synchronous swing arm 60 is driven to rotate relative to the fixed base 10, and the pressing plate 20 is driven to rotate relative to the fixed base 10, so that the pressing plate swing arm 70 is driven to rotate relative to the fixed base 10. Meanwhile, the fixing plate 30 can also drive the pressing plate 20 to rotate relative to the fixing base 10, so that the rotation of the rotating mechanism 100 is realized, and further the bending of the display screen 300 is realized.

Referring to fig. 7 and 8, fig. 7 is a partially exploded structure view of the fixed base 10 in the rotating mechanism 100 shown in fig. 5, and fig. 8 is a sectional view of the fixed base 10 in the rotating mechanism 100 shown in fig. 5.

The fixed base 10 includes an upper case 11 and a lower case 12. The upper case 11 and the lower case 12 are stacked and fixedly connected. The lower case 12 includes a bottom plate 121, a first side plate 122, a second side plate 123, a first end plate 124, and a second end plate (not shown). The first side plate 122 is disposed opposite to the second side plate 123, and the first side plate 122 and the second side plate 123 are respectively connected to opposite sides of the bottom plate 121 in the X direction. The first end plate 124 and the second end plate are opposite, and the first end plate 124 and the second end plate are both connected between the first side plate 122 and the second side plate 123, and are separately connected to opposite sides of the bottom plate 121 in the Y direction. The bottom plate 121, the first side plate 122, the second side plate 123, the first end plate 124 and the second end plate together enclose a containing space 125 with an opening, and the opening of the containing space 125 is opposite to the bottom plate 121. The bottom plate 121 is provided with a first rotating groove 101 and a second rotating groove 102 (not shown) along the X direction, bottom walls of the first rotating groove 101 and the second rotating groove 102 are arc-shaped, and the first rotating groove 101 and the second rotating groove 102 are disposed opposite to each other and symmetrical with respect to the second reference plane P. The first and second rotating grooves 101 and 102 are used to mount the main swing arm 50, and the main swing arm 50 is rotatable within the first and second rotating grooves 101 and 102.

The upper case 11 is a rectangular frame. The upper housing 11 includes an upper surface 111, a lower surface 112, a first side 113, and a second side 114. The upper surface 111 and the lower surface 112 are disposed opposite to each other, and both the upper surface 111 and the lower surface 112 are perpendicular to the Z direction. The first side 113 is opposite to the second side 114, and the first side 113 and the second side 114 are perpendicular to the X direction. The first side 113 and the second side 114 are each connected between the upper surface 111 and the lower surface 112. The upper case 11 is provided with a through groove 115, and the through groove 115 penetrates the upper surface 111 and the lower surface 112. The upper case 11 further includes a first side wall 116 and a second side wall 117, the first side wall 116 and the second side wall 117 are parallel to the first side 113 and the second side 114, the first side wall 116 is disposed opposite to the first side 113, and the second side wall 117 is disposed opposite to the second side 114. The first side wall 116 and the second side wall 117 are opposite side walls of the through groove 115 in the Y direction, respectively. The first side 113 is provided with a first opening 118 and the second side 114 is provided with a second opening 119.

The upper case 11 is stacked on the opening side of the lower case 12, is fixedly connected to the lower case 12, and communicates with the receiving space 125 through the groove 115. The upper housing 11 is configured to be rotatably connected to the floating plate 40, and the through groove 115 is configured to provide a space for avoiding rotation of the floating plate 40. The first opening 118 communicates with the first rotary tub 101, and the second opening 119 communicates with the second rotary tub 102.

Referring to fig. 6 to 9, fig. 9 is a schematic diagram of a part of the rotating mechanism 100 shown in fig. 5.

The floating plate 40 includes a first floating plate 41 and a second floating plate 42. The first floating plate 41 and the second floating plate 42 are both rectangular plate-like structures, and the first floating plate 41 and the second floating plate 42 are identical in size and shape. The first floating plate 41 includes a first side 411 and a second side 412. The extending directions of the first side 411 and the second side 412 are parallel to the Y direction, and the first side 411 and the second side 412 are opposite to each other. The second floating plate 42 includes a third side 421 and a fourth side 422. The extending directions of the third side 421 and the fourth side 422 are parallel to the Y direction, and the third side 421 and the fourth side 422 are disposed opposite to each other.

The first floating plate 41 and the second floating plate 42 are both installed in the through groove 115. The first side 411 is rotatably connected to the first side wall 116 via a first shaft 413, and the extending direction of the first shaft 413 is parallel to the Y direction. The third side 421 is rotatably connected to the second side wall 117 by a second rotating shaft 423, and the extending direction of the second rotating shaft 423 is parallel to the Y direction. The second side 412 and the fourth side 422 are disposed opposite. The first floating plate 41 is rotatable about the first rotation shaft 413, and the second floating plate 42 is rotatable about the second rotation shaft 423.

As shown in fig. 9, when the foldable electronic device 500 is in the flattened state, the first floating plate 41 and the second floating plate 42 are disposed in parallel and side by side. The first floating plate 41 and the second floating plate 42 together support the foldable portion 330 of the display screen 300. In this embodiment, a small amount of clearance is provided between the second side 412 and the fourth side 422, so that friction between the first floating plate 41 and the second floating plate 42 during rotation can be avoided, and damage to the first floating plate 41 and the second floating plate 42 can be avoided.

Referring to fig. 10 together, fig. 10 is a schematic view of a part of the rotating mechanism 100 shown in fig. 5 in a folded state.

When the foldable electronic device 500 is in the folded state, the first floating plate 41 rotates around the first rotating shaft 413 towards the through groove 115, the second floating plate 42 rotates around the second rotating shaft 423 towards the through groove 115, the first floating plate 41 and the second floating plate 42 are arranged at an included angle, and an avoidance space 3 is formed, and the avoidance space 3 can provide a bending space for the display screen 300.

The fixed base 10 is provided therein with a first elastic member 13 and a second elastic member 14. In this embodiment, the first elastic member 13 and the second elastic member 14 are both springs. In other embodiments, the first elastic member 13 and the second elastic member 14 may be made of other elastic materials. One end of the first elastic member 13 is fixedly connected with the bottom plate 121, the other end is fixedly connected with the first floating plate 41, and the elastic extension direction of the first elastic member 13 is parallel to the Z direction. When the first floating plate 41 is disposed parallel to the X direction, the main swing arm 50 abuts against the first floating plate 41, and the first floating plate 41 pulls the first elastic member 13, so that the first elastic member 13 is in an extended state. When the main swing arm 50 releases the first floating plate 41, the first elastic member 13 elastically restores and drives the first floating plate 41 to rotate, so that the first elastic member 13 is in a natural state when the first floating plate 41 is arranged at an included angle with the X direction. Alternatively, when the first floating plate 41 is disposed at an angle with respect to the X direction, the first floating plate 41 compresses the first elastic member 13 due to gravity, so that the first elastic member 13 is in a compressed state. The term "the first elastic member 13 is in a natural state" as used herein means that the first elastic member 13 is not subjected to an external force in the direction of elastic extension thereof, or the resultant force of the external forces is zero, and the first elastic member 13 is not deformed in the direction of elastic extension thereof. The "first elastic member 13 is in a compressed state" means that the first elastic member 13 is compressed by an external force and is compressed and deformed.

One end of the second elastic member 14 is fixedly connected with the bottom plate 121, the other end is fixedly connected with the second floating plate 42, and the elastic extension direction of the second elastic member 14 is parallel to the Z direction. When the second floating plate 42 is disposed parallel to the X direction, the main swing arm 50 abuts against the second floating plate 42, and the second floating plate 42 pulls the second elastic member 14, and makes the second elastic member 14 in an extended state. When the main swing arm 50 releases the second floating plate 42, the second elastic member 14 elastically restores and drives the second floating plate 42 to rotate, so that the second elastic member 14 is in a natural state when the second floating plate 42 is arranged at an included angle with the X direction. Or, when the second floating plate 42 is disposed at an angle with respect to the X direction, the second floating plate 42 compresses the second elastic member 14 due to gravity, so that the second elastic member 14 is in a compressed state. The "the second elastic member 14 is in a natural state" herein means that the second elastic member 14 is not subjected to an external force in its elastic extension direction, or the resultant force of the external forces is zero, and the second elastic member 14 is not deformed in its elastic extension direction. The "the second elastic member 14 is in a compressed state" means that the second elastic member 14 is compressed by an external force and is subjected to compression deformation.

Referring to fig. 11, fig. 11 is an enlarged schematic view of the first fixing plate 31 and the second fixing plate 32 in the rotating mechanism 100 shown in fig. 6.

The fixing plate 30 includes a first fixing plate 31 and a second fixing plate 32. The first fixing plate 31 and the second fixing plate 32 have the same structure, the first fixing plate 31 and the second fixing plate 32 are respectively positioned at opposite sides of the fixing base 10 in the X direction, and the first fixing plate 31 and the second fixing plate 32 are symmetrical with respect to the second reference plane P.

The first fixing plate 31 is a bar-shaped plate-like structure having a thickness. The first fixing plate 31 includes a first upper surface 313, a first lower surface 314, a first side surface 315, and a second side surface 316. The first upper surface 313 and the first lower surface 314 are disposed opposite to each other, the first side surface 315 and the second side surface 316 are disposed opposite to each other, and the first side surface 315 and the second side surface 316 are connected between the first upper surface 313 and the first lower surface 314. The first fixing plate 31 is provided with a first slide groove 311 and a second slide groove 312. The first chute 311 is concavely disposed at one end of the first fixing plate 31. The first sliding groove 311 is arc-shaped, and openings at opposite ends of the first sliding groove 311 respectively penetrate through the first side surface 315 and the first upper surface 313. The first sliding groove 311 is used for sliding connection with the pressing plate 20. The second sliding groove 312 is spaced from the first sliding groove 311, and the second sliding groove 312 penetrates the first fixing plate 31 in the X direction. That is, the second runner 312 extends through the first side surface 315 and the second side surface 316. The first fixing plate 31 is fixedly connected with the first housing 210, and the first fixing plate 31 is rotatably connected with the fixing base 10 through a rotation assembly. The first housing 210 rotates relative to the fixed base 10 to drive the first fixing plate 31 to rotate relative to the fixed base 10.

The second fixing plate 32 is a bar-shaped plate-like structure having a thickness. The second fixed plate 32 includes a second upper surface 323, a second lower surface 324, a third side surface 325, and a fourth side surface 326. The second upper surface 323 and the second lower surface 324 are disposed opposite to each other, the third side surface 325 and the fourth side surface 326 are disposed opposite to each other, and the third side surface 325 and the fourth side surface 326 are connected between the second upper surface 323 and the second lower surface 324. The second fixing plate 32 is provided with a third slide groove 321 and a fourth slide groove 322. The third sliding groove 321 is concavely arranged at one end of the second fixing plate 32. The third sliding groove 321 is arc-shaped, and openings at opposite ends of the third sliding groove 321 respectively penetrate through the third side surface 325 and the second upper surface 323. The third sliding groove 321 is used for sliding connection with the pressing plate 20. The fourth sliding groove 322 is spaced from the third sliding groove 321, and the fourth sliding groove 322 penetrates the second fixing plate 32 in the X direction. That is, the fourth runner 322 penetrates the third side surface 325 and the fourth side surface 326. The second fixing plate 32 is fixedly connected with the second housing 220, and the second fixing plate 32 is rotatably connected with the fixing base 10 through a rotation assembly. The second housing 220 rotates relative to the fixed base 10 to drive the second fixing plate 32 to rotate relative to the fixed base 10.

Referring to fig. 5, the fixing plate 30 further includes a third fixing plate 33 and a fourth fixing plate 34. The third fixing plate 33 and the fourth fixing plate 34 have the same structure as the first fixing plate 31 and the second fixing plate 32. The third fixing plate 33 is symmetrical to the first fixing plate 31 with respect to the first reference plane O, and the fourth fixing plate 34 is symmetrical to the second fixing plate 32 with respect to the first reference plane O.

In this embodiment, the first fixing plate 31 and the third fixing plate 33 are fixedly connected with the first housing 210 of the foldable electronic device 500, and when the first housing 210 rotates relative to the fixing base 10, the first fixing plate 31 and the third fixing plate 33 are driven to rotate, so as to drive the main swing arm 50 to rotate, thereby increasing the stability of the connection between the first housing 210 and the rotating mechanism 100, and ensuring the stability of the rotation of the rotating mechanism 100 and the foldable electronic device 500. The second and fourth fixing plates 32 and 34 are fixedly coupled with the second housing 220. When the second housing 220 rotates relative to the fixed base 10, the second fixing plate 32 and the fourth fixing plate 34 are driven to rotate, so as to drive the main swing arm 50 to rotate, further realize folding or unfolding of the rotating mechanism 100, and further ensure the rotating stability of the rotating mechanism 100 and the foldable electronic device 500.

Referring to fig. 12 and 13, fig. 12 is an enlarged schematic view of the first platen 21 and the second platen 22 in the rotating mechanism 100 shown in fig. 6, and fig. 13 is a schematic view of a part of the rotating mechanism shown in fig. 5.

The platen 20 includes a first platen 21 and a second platen 22. The first platen 21 and the second platen 22 are identical in structure. The first pressing plate 21 and the second pressing plate 22 are respectively located at two opposite sides of the fixed base 10 in the X direction, and the first pressing plate 21 and the second pressing plate 22 are symmetrical with respect to the first reference plane O. In the present embodiment, the dimensions of the first platen 21 and the second platen 22 in the Y direction are the same as those of the display screen 300 in the Y direction. Of course, small deviations may also be tolerated.

The first platen 21 includes a first body 211 and a first slider 212. The first body 211 is rectangular. The first body 211 includes a first surface 2111 and a second surface 2112, the first surface 2111 and the second surface 2112 are disposed opposite each other, and the first surface 2111 and the second surface 2112 are each perpendicular to the Z direction. The first body 211 is provided with a first platen slide groove 213, and the first platen slide groove 213 penetrates the first body 211 in the width direction of the first body 211. The first platen slide 213 is adapted to slidingly couple with the rotating assembly. The first slider 212 is arc-shaped. One end of the first slider 212 is fixedly connected with the first surface 2111, the other end extends from the first surface 2111 in an arc shape in a direction away from the first body 211, and the first slider 212 is bent toward the first surface 2111. The shape of the first slider 212 is adapted to the first slide slot 311. The adaptation means that the first sliding block 212 can be installed in the first sliding groove 311 and slide in the first sliding groove 311.

The first pressing plate 21 and the first fixing plate 31 are stacked, the first slider 212 is located in the first sliding groove 311, and the first slider 212 can slide in the first sliding groove 311. Meanwhile, the first pressing plate 21 is rotatably connected with the fixed base 10 through a rotation assembly. The first fixing plate 31 rotates relative to the fixing base 10, and drives the first pressing plate 21 to rotate relative to the fixing base 10, and simultaneously drives the first pressing plate 21 to slide relative to the first fixing plate 31.

The second platen 22 includes a second body 221 and a second slider 222. The second body 221 is rectangular. The second body 221 includes a third surface 2211 and a fourth surface 2212, the third surface 2211 and the fourth surface 2212 are disposed opposite to each other, and the third surface 2211 and the fourth surface 2212 are perpendicular to the Z direction. The second body 221 is provided with a second platen sliding groove 223, and the second platen sliding groove 223 penetrates the second body 221 in the width direction of the second body 221. The second platen slide 223 is adapted to slidingly couple with the rotating assembly. The second slider 222 is arc-shaped. One end of the second slider 222 is fixedly connected with the third surface 2211, the other end extends from the third surface 2211 in an arc shape toward a direction away from the second body 221, and the second slider 222 is bent toward the third surface 2211. The shape of the second slider 222 is adapted to the second runner 312. The second slider 222 may be mounted in the second sliding slot 312 and slide in the second sliding slot 312.

The second pressing plate 22 and the second fixing plate 32 are stacked, the second slider 222 is located in the third sliding groove 321, and the second slider 222 can slide in the third sliding groove 321. Meanwhile, the second pressing plate 22 is rotatably connected with the fixed base 10 through a rotation assembly. The second fixing plate 32 rotates relative to the fixing base 10, and drives the second pressing plate 22 to rotate relative to the fixing base 10, and simultaneously drives the second pressing plate 22 to slide relative to the second fixing plate 32.

Referring to fig. 5, the first pressing plate 21 further includes a third slider (not shown) located at an end of the first body 211 opposite to the first slider 212. The third slider has the same structure as the first slider 212, and the third slider and the first slider 212 are symmetrical with respect to the first reference plane O. The first body 211 is further provided with a third pressing plate chute (not shown), the third pressing plate chute penetrates the first body 211 in the width direction of the first body 211, the third pressing plate chute and the first pressing plate chute 213 are symmetrical with respect to the first reference plane O, and the third pressing plate chute is used for being rotationally connected with the rotating assembly. The third fixing plate 33 is stacked with the first pressing plate 21, and is slidably connected with the first pressing plate 21 through a third slider.

The second platen 22 further includes a fourth slider (not shown) located at an end of the second body 221 opposite to the second slider 222. The fourth slider has the same structure as the second slider 222, and the fourth slider and the second slider 222 are symmetrical with respect to the first reference plane O. The second body 221 is further provided with a fourth pressing plate chute (not shown), the fourth pressing plate chute penetrates through the second body 221 in the width direction of the second body 221, the fourth pressing plate chute is symmetrical to the first pressing plate chute 213 relative to the first reference surface O, and the fourth pressing plate chute is used for being rotationally connected with the rotating assembly. The third fixing plate 33 is stacked with the second pressing plate 22, and the third fixing plate is slidably connected with the second pressing plate 22 through a fourth slider.

The first pressing plate 21 and the second pressing plate 22 are opposite to the display screen 300, and the first pressing plate 21 and the second pressing plate 22 support the display screen 300 together with the first floating plate 41 and the second floating plate 42, so that the stability of connection of the display screen 300 can be increased, and good display of the display screen 300 can be ensured. In this embodiment, the first fixing plate 31 and the third fixing plate 33 rotate to drive the first pressing plate 21 to rotate, and the second fixing plate 32 and the fourth fixing plate 34 rotate to drive the second pressing plate 22 to rotate, so as to realize folding and unfolding of the display screen 300. Moreover, by providing the first pressing plate 21 with the arc-shaped slider and providing the first fixing plate 31 with the chute, the sliding connection between the first pressing plate 21 and the first fixing plate 31 can be realized, and the first pressing plate 21 can slide in an arc shape relative to the first fixing plate 31. By arranging the arc-shaped sliding blocks on the second pressing plate 22 and arranging the guide grooves on the second fixing plate 32, the sliding connection between the second pressing plate 22 and the second fixing plate 32 can be realized, and the second pressing plate 22 can slide in an arc shape relative to the second fixing plate 32. When the first fixing plate 31 and the second fixing plate 32 rotate, the first pressing plate 21 and the second pressing plate 22 rotate relatively, and the first pressing plate 21 slides in an arc shape relative to the first fixing plate 31, and the second pressing plate 22 slides in an arc shape relative to the second fixing plate 32, so that an included angle between the first pressing plate 21 and the second pressing plate 22 can be adjusted, and a folding angle of the foldable portion 330 of the display screen 300 can be adapted.

Referring to fig. 14 and 15, fig. 14 is an enlarged schematic view of the first main swing arm 51 and the second main swing arm 52 in the turning mechanism 100 shown in fig. 6, and fig. 15 is a partial schematic view of the turning mechanism shown in fig. 5.

The main swing arm 50 includes a first main swing arm 51 and a second main swing arm 52. The first main swing arm 51 and the second main swing arm 52 have the same structure, and the first main swing arm 51 and the second main swing arm 52 are respectively located at opposite sides of the fixed base 10 in the X direction. In the present embodiment, the first main swing arm 51 and the second main swing arm 52 are arranged side by side along the X direction, and the first main swing arm 51 and the second main swing arm 52 are symmetrical with respect to the second reference plane P. In other embodiments, the first main swing arm 51 and the second main swing arm 52 may be disposed in a staggered manner in the Y direction.

The first main swing arm 51 includes a first rotating body 511, a first swing body 512, and a third rotating shaft 513. The first rotating body 511 has a circular arc plate-like structure, and the structure of the first rotating body 511 matches the structure of the first rotating groove 101. The first rotating body 511 includes a first connection end 5111 and a first free end 5112, and the first connection end 5111 and the first free end 5112 are respectively located at opposite ends of the first rotating body 511. The first swinging body 512 has a planar plate shape. One end of the first swinging body 512 is fixedly connected to the first connection end 5111, and the other end is fixedly connected to the third rotation shaft 513. The extending direction of the third rotation shaft 513 is parallel to the Y direction. The first free end 5112 of the first main swing arm 51 extends into the fixed base 10 from the first opening 118, the first rotating body 511 is mounted in the first rotating groove 101, and the first rotating body 511 can slide and rotate along the first rotating groove 101. The first main swing arm 51 is rotatably mounted on the first fixing plate 31 through a third rotation shaft 513, and the first main swing arm 51 can rotate around the third rotation shaft 513 relative to the first fixing plate 31.

The second main swing arm 52 includes a second rotating body 521, a second swing body 522, and a fourth rotating shaft 523. The second rotating body 521 has a circular arc plate-shaped structure, and the structure of the second rotating body 521 matches the structure of the second rotating groove 102. The second rotating body 521 includes a second connection end 5211 and a second free end 5212, and the second connection end 5211 and the second free end 5212 are located at opposite ends of the second rotating body 521, respectively. The second swinging body 522 has a planar plate shape. One end of the second swinging body 522 is fixedly connected to the second connecting end 5211, and the other end is fixedly connected to the fourth rotating shaft 523. The extending direction of the fourth rotation shaft 523 is parallel to the Y direction. The second free end 5212 of the second main swing arm 52 extends into the fixed base 10 from the second opening 119, the second rotating body 521 is mounted in the second rotating groove 102, and the second rotating body 521 is slidable and rotatable along the second rotating groove 102. The second main swing arm 52 is rotatably mounted to the second fixing plate 32 through a fourth rotation shaft 523, and the second main swing arm 52 is rotatable about the fourth rotation shaft 523 relative to the second fixing plate 32.

Referring to fig. 16 and 17, fig. 16 is a cross-sectional view of the turning mechanism 100 shown in fig. 5 in a flattened state, and fig. 17 is a cross-sectional view of the turning mechanism 100 shown in fig. 5 in a folded state.

When the rotation mechanism 100 is in the flattened state, the first fixing plate 31 and the second fixing plate 32 are unfolded with respect to the fixing base 10. The first free end 5112 of the first main swing arm 51 abuts against the first floating plate 41, and the first elastic member 13 is stretched and is in a stretched state; the second free end 5212 of the second main swing arm 52 abuts against the second floating plate 42, the second elastic member 14 is stretched, and the first and second floating plates 41 and 42 are disposed side by side and in parallel.

The first fixing plate 31 and the second fixing plate 32 rotate toward each other, and the first fixing plate 31 drives the first main swing arm 51 to rotate clockwise ω through the third rotation shaft 513 ₂ Rotates, the first rotating body 511 rotates clockwise ω in the fixed base 10 ₂ The first free end 5112 releases the first floating plate 41, the first elastic member 13 elastically returns to the natural state (as shown in fig. 10), and the elastic force of the first elastic member 13 drives the first floating plate 41 to rotate clockwise ω ₂ And (5) rotating. The second fixing plate 32 drives the second main swing arm 52 to anticlockwise omega through the fourth rotating shaft 523 ₁ Rotates, the second rotating body 521 rotates counterclockwise ω in the fixed base 10 ₁ Rotates and the second free end 5212 releases the firstThe second elastic member 14 is elastically restored to the natural state (as shown in fig. 10) by the two floating plates 42, and the resilience of the second elastic member 14 drives the second floating plate 42 to rotate counterclockwise ω ₁ The first floating plate 41 and the second floating plate 42 are rotated to form an included angle, and form an avoidance space 3, so that the rotating mechanism 100 is in a folded state (as shown in fig. 14).

The first fixing plate 31 and the second fixing plate 32 rotate towards the direction away from each other, and the first fixing plate 31 drives the first main swing arm 51 to anticlockwise omega through the third rotating shaft 513 ₁ And (5) rotating. The first rotary body 511 is counterclockwise ω in the fixed base 10 ₁ Rotates, and the first free end 5112 abuts against the first floating plate 41 to make the first floating plate 41 anticlockwise omega ₁ The rotation is performed so that the first elastic member 13 is stretched to put the first elastic member 13 in a stretched state. The second fixing plate 32 drives the second main swing arm 52 to rotate clockwise omega through the second rotating shaft 423 ₂ Rotates, the second rotating body 521 rotates clockwise omega in the fixed base 10 ₂ Rotates, and the second free end 5212 abuts against the second floating plate 42 to make the second floating plate 42 clockwise omega ₂ The second elastic member 14 is stretched by the rotation, so that the second elastic member 14 is in a stretched state, and the first floating plate 41 and the second floating plate 42 are arranged in parallel and side by side, so that the rotation mechanism 100 returns to a flattened state (as shown in fig. 13).

In the present embodiment, the first and second fixing plates 31 and 32 are rotated with respect to the fixing base 10 by providing the first and second main swing arms 51 and 52. When the rotation mechanism 100 is in the flattened state, the first main swing arm 51 abuts against the first floating plate 41, and the second main swing arm 52 abuts against the second floating plate 42, so that the first floating plate 41 and the second floating plate 42 are disposed in parallel and side by side. The first floating plate 41 and the second floating plate 42 together support the foldable portion 330 of the display screen 300. When the rotating mechanism 100 is in a folded state, the first main swing arm 51 releases the first floating plate 41, the second main swing arm 52 releases the second floating plate 42, the first floating plate 41 and the second floating plate 42 are arranged at an included angle, and an avoidance space 3 is formed, and the avoidance space 3 can provide a bending space for the display screen 300, so that extrusion to the display screen 300 can be avoided.

Referring to fig. 5 and 6, the main swing arm 50 further includes a third main swing arm and a fourth main swing arm (not shown), and the structures of the third main swing arm and the fourth main swing arm are the same as those of the first main swing arm 51 and the second main swing arm 52. The third main swing arm is symmetrical to the first main swing arm 51 relative to the first reference plane O, the fourth main swing arm is symmetrical to the second main swing arm 52 relative to the first reference plane O, and the third main swing arm is symmetrical to the fourth main swing arm relative to the second reference plane P. The third main swing arm and the fourth main swing arm are both installed on the fixed base 10, and the third main swing arm and the fourth main swing arm can rotate relative to the fixed base 10. The third main swing arm is rotatably connected with the third fixing plate 33, and the third fixing plate 33 drives the third main swing arm to rotate relative to the fixing base 10 when rotating. The fourth main swing arm is rotatably connected with the fourth fixing plate 34, and the fourth fixing plate 34 drives the fourth main swing arm to rotate relative to the fixing base 10 when rotating.

Referring to fig. 18, fig. 18 is an enlarged schematic view of the synchronous swing arm 60 in the rotating mechanism 100 shown in fig. 6.

The synchronization swing arm 60 includes a first synchronization swing body 61, a second synchronization swing body 62, and a synchronization gear 63. The synchronizing gear 63 includes a first gear 631, a second gear 632, and an intermediate gear 633. The first gear 631, the intermediate gear 633 and the second gear 632 are disposed side by side, and the intermediate gear 633 is located between the first gear 631 and the second gear 632 and is engaged with the first gear 631 and the second gear 632. In this embodiment, there are two intermediate gears 633. In other embodiments, the number of intermediate gears 633 may be one, three, or more than three. One end of the first synchronous swinging body 61 is fixedly connected with the first gear 631, and one end of the second synchronous swinging body 62 is fixedly connected with the second gear 632.

The synchronization swing arm 60 also includes a damping member 64. In the present embodiment, the damper 64 is composed of a plurality of damper sheets, and the plurality of damper sheets are stacked. The damping member 64 is sleeved on the side surface of the synchronizing gear 63, and the synchronizing gear 63 can rotate relative to the damping member 64. When the synchronous gear 63 rotates, a damping force is arranged between the synchronous gear 63 and the damping piece 64, so that the opening and closing hand feeling of the rotating mechanism 100 can be improved, and the use experience of a user is improved.

Referring to fig. 19 together, fig. 19 is a schematic view of a part of the rotating mechanism 100 shown in fig. 5.

The synchronization swing arm 60 is mounted to the fixed base 10. The synchronizing gear 63 is located in the fixed base 10, and the first synchronizing swinging body 61 and the second synchronizing swinging body 62 are located at opposite sides of the fixed base 10 in the X direction. One end of the first synchronous swinging body 61 far away from the first gear 631 extends into the second chute 312 of the first fixed plate 31 and is in sliding connection with the first fixed plate 31. One end of the second synchronous swinging body 62 far away from the second gear 632 extends into the fourth chute 322 of the second fixing plate 32 and is slidably connected with the second fixing plate 32.

When the first fixing plate 31 rotates relative to the fixing base 10 in a direction approaching the fixing base 10, i.e. the first fixing plate 31 rotates clockwise ω ₂ When rotating, the first synchronous swinging body 61 is driven to clockwise omega ₂ The first gear 631 is driven to rotate by the rotation of the first gear 631, and the intermediate gear 633 is driven to rotate by the rotation of the first gear 631, and the second gear 632 is driven to rotate by the rotation of the second gear. The second gear 632 rotates to drive the second synchronous swinging body 62 to rotate anticlockwise omega ₁ Rotates to drive the second fixing plate 32 to anticlockwise omega relative to the fixing base 10 ₁ The rotation, and thus the simultaneous rotation of the first and second synchronous swinging bodies 61 and 62 toward the direction approaching the fixed base 10, is achieved, so that the first and second fixed plates 31 and 32 are simultaneously rotated toward the direction approaching the fixed base 10.

When the first fixing plate 31 rotates relative to the fixing base 10 in a direction away from the fixing base 10, i.e. the first fixing plate 31 rotates counterclockwise ω ₁ When rotating, the first synchronous swinging body 61 is driven to anticlockwise omega ₁ The first gear 631 is driven to rotate by the rotation of the first gear 631, and the intermediate gear 633 is driven to rotate by the rotation of the first gear 631, and the second gear 632 is driven to rotate by the rotation of the second gear. The second gear 632 rotates to drive the second synchronous oscillating body 62 clockwise ω ₂ Rotates to drive the second fixing plate 32 clockwise omega relative to the fixing base 10 ₂ The rotation, and thus the simultaneous rotation of the first and second synchronous swinging bodies 61 and 62 toward the direction away from the fixed base 10, is achieved, so that the first and second fixed plates 31 and 32 are simultaneously rotated toward the direction away from the fixed base 10.

In this embodiment, through setting up synchronous swing arm 60 for when first fixed plate 31 rotates, can drive second fixed plate 32 through synchronous swing arm 60 and rotate, thereby realize the synchronous rotation of first fixed plate 31 and second fixed plate 32, and then promote slewing mechanism 100 pivoted convenience and reliability, promote user's use experience.

Referring to fig. 20 and 21, fig. 20 is an enlarged schematic view of the first platen swing arm 71 and the second platen swing arm 72 in the turning mechanism 100 shown in fig. 5, and fig. 21 is a cross-sectional view of the turning mechanism 100 shown in fig. 5 in a flattened state.

The platen swing arm 70 includes a first platen swing arm 71 and a second platen swing arm 72. The first platen swing arm 71 and the second platen swing arm 72 have the same structure, the first platen swing arm 71 and the second platen swing arm 72 are respectively located at two opposite sides of the fixed base 10 in the X direction, and the first platen swing arm 71 and the second platen swing arm 72 are symmetrical with respect to the first reference plane O.

The first platen swing arm 71 includes a first shaft housing 711 and a first platen swing body 712, and the first shaft housing 711 is located at one end of the first platen swing body 712 and fixedly connected to the first platen swing body 712. The length direction of the first shaft housing 711 is parallel to the Y direction. The first shaft housing 711 is rotatably connected to the fixed base 10, and the first shaft housing 711 is rotatable around the fixed base 10. In this embodiment, a rotating shaft is disposed on the fixed base 10, and the first shaft sleeve 711 is sleeved on the rotating shaft to realize the rotational connection between the first pressing plate swing arm 71 and the fixed base 10. The first platen swing body 712 is installed in the first platen slide groove 213 and is slidable along the first platen slide groove 213. When the first pressing plate 21 rotates, the first pressing plate swinging body 712 is driven to rotate, so that the first shaft sleeve 711 is driven to rotate relative to the fixed base 10, and further the first pressing plate 21 and the first pressing plate swinging arm 71 rotate relative to the fixed base 10. In this embodiment, by providing the first pressing plate swing arm 71 and driving the first pressing plate swing arm 71 to rotate through the first pressing plate 21, the first pressing plate 21 rotates relative to the fixed base 10, so that the stability of the rotation of the first pressing plate 21 can be improved.

The second platen swing arm 72 includes a second sleeve 721 and a second platen swing body 722, and the second sleeve 721 is fixedly connected with the second platen swing body 722. The length direction of the second sleeve 721 is parallel to the Y direction. The second sleeve 721 is rotatably connected to the fixed base 10, and the second sleeve 721 is rotatable around the fixed base 10. In this embodiment, a rotating shaft is disposed on the fixed base 10, and a second sleeve 721 is sleeved on the rotating shaft to realize the rotational connection between the second pressing plate swing arm 72 and the fixed base 10. The second platen swing body 722 is installed in the second platen slide groove 223 and is slidable along the second platen slide groove 223. When the second pressing plate 22 rotates, the second pressing plate swinging body 722 is driven to rotate, so that the second shaft sleeve 721 is driven to rotate relative to the fixed base 10, and further the second pressing plate 22 and the second pressing plate swinging arm 72 rotate relative to the fixed base 10. In this embodiment, the second pressing plate swing arm 72 is provided, and the second pressing plate 22 drives the second pressing plate swing arm 72 to rotate, so that the second pressing plate 22 rotates relative to the fixed base 10, and further the stability of the rotation of the second pressing plate 22 can be improved.

In this embodiment, by providing the first pressing plate swing arm 71 and driving the first pressing plate swing arm 71 to rotate through the first pressing plate 21, the first pressing plate 21 rotates relative to the fixed base 10, so that the stability of the rotation of the first pressing plate 21 can be improved. And, through setting up second clamp plate swing arm 72 to drive second clamp plate swing arm 72 through second clamp plate 22 and rotate, thereby realize that second clamp plate 22 rotates relative to fixed base 10, and then can promote second clamp plate 22 pivoted stability.

Referring to fig. 5, 6 and 16, when the foldable electronic device 500 is in the flattened state, the first fixing plate 31 and the second fixing plate 32 are parallel to the X direction and are unfolded relative to the fixing base 10. The first platen 21 and the second platen 22 are each parallel to the X direction and are unfolded with respect to the fixed base 10. The first rotating body 511 and the second rotating body 521 are both located in the fixed base 10, and the first free end 5112 of the first rotating body 511 abuts against the first floating plate 41, and the first elastic member 13 is stretched and is in a stretched state; the second free end 5212 of the second rotating body 521 abuts against the second floating plate 42, and the second elastic member 14 is stretched and is in a stretched state. The first floating plate 41 and the second floating plate 42 are both parallel to the X direction, and the first floating plate 41 and the second floating plate 42 are parallel and arranged side by side in the X direction. The first pressing plate 21, the second pressing plate 22, the first floating plate 41, and the second floating plate 42 support the display screen 300 in common.

Clockwise omega ₂ The first fixing plate 31 is rotated to drive the first main swing arm 51 to rotate clockwise omega ₂ The first rotary body 511 slides in the first rotary groove 101 towards the direction away from the fixed base 10, so that the first free end 5112 is far away from the first floating plate 41, the first elastic member 13 elastically retracts to a natural state, and drives the second side edge 412 of the first floating plate 41 to rotate clockwise omega ₂ The first floating plate 41 is rotated to sink toward the inside of the fixed base 10. At the same time, the first fixing plate 31 drives the first pressing plate 21 to rotate clockwise ω ₂ Rotates and slides the first pressing plate 21 with respect to the first fixing plate 31. The first presser plate 21 is at a clockwise omega ₂ In the process of rotation, the first pressing plate swing arm 71 is driven to rotate clockwise omega ₂ Rotates to realize the clockwise omega of the first pressing plate 21 relative to the fixed base 10 ₂ And (5) rotating. And, the first fixing plate 31 is clockwise ω ₂ The rotation also drives the first synchronous swinging body 61 of the synchronous swinging arm 60 to clockwise omega ₂ Rotates and slides the first synchronization swinging body 61 in the second slide groove 312. The first synchronous swinging body 61 drives the second synchronous swinging body 62 to anticlockwise omega through the synchronous gear 63 ₁ Rotates to drive the second fixing plate 32 to anticlockwise omega ₁ And (5) rotating.

The second fixing plate 32 is counterclockwise omega ₁ The second main swing arm 52 is driven to anticlockwise omega during rotation ₁ The second rotating body 521 slides in the second rotating groove 102 in a direction away from the fixed base 10, so that the second free end 5212 is far away from the second floating plate 42, the second elastic member 14 elastically retracts to a natural state, and drives the fourth side 422 of the second floating plate 42 to anticlockwise ω ₁ The second floating plate 42 sinks towards the inside of the fixed base 10, and the second floating plate 42 and the first floating plate 41 form an included angle, so that the avoidance space 3 is formed. At the same time, the second fixing plate 32 drives the second pressing plate 22 to rotate counterclockwise ω ₁ Rotates and slides the second pressing plate 22 relative to the second fixing plate 32, the second pressing plate 22 is rotated counterclockwise ω ₁ In the process of rotation, the second pressing plate swing arm 72 is driven to anticlockwise omega ₁ Rotates to realize the anticlockwise omega of the second pressing plate 22 relative to the fixed base 10 ₁ Rotates to place the rotating mechanism 100 in a folded state (as shown in fig. 14).

Referring to fig. 17 and 22, fig. 22 is a schematic view of a part of the rotating mechanism 100 shown in fig. 5 in a folded state.

When the rotating mechanism 100 is in a folded state, the first fixing plate 31 and the second fixing plate 32 are folded relatively, the first pressing plate 21 and the second pressing plate 22 are folded relatively, the first floating plate 41 and the second floating plate 42 sink towards the inside of the fixing base 10, and the first floating plate 41 and the second floating plate 42 are arranged at an included angle and form the avoidance space 3.

Referring to fig. 23 together, fig. 23 is a schematic view of a portion of the foldable electronic device 500 shown in fig. 1 in a folded state.

When the rotating mechanism 100 is in the folded state, the foldable portion 330 of the display 300 is located inside the rotating mechanism 100. The partially foldable portion 330 is located between the first platen 21 and the second platen 22 and is spaced apart from the first platen 21 and the second platen 22, and the partially foldable portion 330 is opposite to the first floating plate 41 and the second floating plate 42 and is located in the avoidance space 3. The avoidance space 3 formed by the rotation of the first floating plate 41 and the second floating plate 42 can avoid the R angle formed when the foldable part 330 is bent, so that the foldable part 330 cannot be bent at a larger angle, the undesirable phenomena of crease and the like of the display screen 300 are avoided, and the service life of the display screen 300 is prolonged.

Meanwhile, a gap is formed between the display screen 300 and the first floating plate 41 and the second floating plate 42, so that the display screen 300 is prevented from being damaged due to extrusion between the display screen 300 and the first floating plate 41 and the second floating plate 42, and the display screen 300 is prevented from being damaged due to collision between the first floating plate 41 and the second floating plate 42 with the display screen 300 in a reliability test. In addition, by providing the first floating plate 41 and the second floating plate 42 that are rotatable, the size of the first floating plate 41 and the second floating plate 42 in the Z direction in the state of being set at an included angle is reduced, so that the thickness of the rotating mechanism 100 can be reduced, which is advantageous for the light and thin of the foldable electronic device 500.

Counterclockwise omega ₁ The first fixing plate 31 is rotated to drive the first main swing arm 51 to anticlockwise omega ₁ The first rotary body 511 slides in the first rotary groove 101 toward the fixed base 10, so that the first free end 5112 abuts against the first floating plate 41 to make the first floating plate 41Two sides 412 are counter-clockwise omega ₁ The first floating plate 41 is rotated so as to be parallel to the X direction. And, the first floating plate 41 is counterclockwise ω ₁ The first elastic member 13 is stretched and is in a stretched state when rotated. To drive so as to make. At the same time, the first fixing plate 31 drives the first pressing plate 21 to rotate anticlockwise omega ₁ Rotates and slides the first pressing plate 21 with respect to the first fixing plate 31. The first pressing plate 21 is at anticlockwise omega ₁ In the process of rotation, the first pressing plate swing arm 71 is driven to anticlockwise omega ₁ Rotates to realize the anticlockwise omega of the first pressing plate 21 relative to the fixed base 10 ₁ And (5) rotating. And, the first fixing plate 31 is counterclockwise ω ₁ The rotation also drives the first synchronous swinging body 61 of the synchronous swinging arm 60 to anticlockwise omega ₁ Rotates and slides the first synchronization swinging body 61 in the second slide groove 312. The first synchronous swinging body 61 drives the second synchronous swinging body 62 to clockwise omega through the synchronous gear 63 ₂ Rotates to drive the second fixing plate 32 clockwise omega ₂ And (5) rotating.

The second fixing plate 32 is clockwise ω ₂ Rotate to drive the second main swing arm 52 to rotate clockwise omega ₂ The second rotating body 521 slides in the second rotating groove 102 toward the direction approaching the fixed base 10, so that the second free end 5212 abuts against the second floating plate 42, and the fourth side 422 of the second floating plate 42 is rotated clockwise ω ₂ The second floating plate 42 is rotated to be parallel to the X direction, and the second floating plate 42 is parallel to the first floating plate 41 and is arranged side by side. And, the second floating plate 42 is clockwise ω ₂ The second elastic member 14 is stretched and is in a stretched state when rotated. At the same time, the second fixing plate 32 drives the second pressing plate 22 to rotate clockwise ω ₂ Rotates and slides the second pressing plate 22 relative to the second fixing plate 32, the second pressing plate 22 is rotated clockwise omega ₂ In the process of rotation, the second pressing plate swing arm 72 is driven to rotate clockwise omega ₂ Rotates to realize the clockwise omega of the second pressing plate 22 relative to the fixed base 10 ₂ Rotated to rotate the rotating mechanism 100 to a flattened state (as shown in fig. 5).

The above is only a part of examples and embodiments of the present application, and the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are covered in the scope of the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.

Claims

1. A rotary mechanism, comprising: the device comprises a fixed base, a first floating plate, a second floating plate, a first main swing arm and a second main swing arm;

the fixed base is provided with a first rotating groove and a second rotating groove, and the first rotating groove and the second rotating groove are oppositely arranged;

the first floating plate comprises a first side and a second side which are oppositely arranged, the second floating plate comprises a third side and a fourth side which are oppositely arranged, the first floating plate and the second floating plate are arranged side by side, the second side is opposite to the fourth side, the first floating plate and the second floating plate are both arranged on the fixed base, and the first side and the third side are respectively connected with the fixed base in a rotating way;

The first main swing arm is arranged in the first rotating groove, is opposite to the first floating plate, and can slide along the first rotating groove; the second main swing arm is arranged in the second rotating groove and is opposite to the second floating plate, and the second main swing arm can slide along the second rotating groove; the first main swing arm and the second main swing arm rotate simultaneously and in opposite rotation directions, and the first main swing arm and the second main swing arm rotate to realize relative rotation of the first floating plate and the second floating plate.

2. The rotating mechanism according to claim 1, wherein the rotating mechanism has a flattened state and a folded state, and wherein when the rotating mechanism is in the flattened state, the first main swing arm abuts against the first floating plate, the second main swing arm abuts against the second floating plate, and the first floating plate and the second floating plate are arranged side by side and in parallel; when the rotating mechanism is in a folding state, the first main swing arm releases the first floating plate, the second main swing arm releases the second floating plate, and the first floating plate and the second floating plate are arranged in an included angle.

3. The rotating mechanism according to claim 1 or 2, wherein when the first floating plate and the second floating plate are disposed at an included angle, the first floating plate and the second floating plate enclose an avoidance space.

4. A rotation mechanism according to claim 2 or 3, wherein the rotation mechanism comprises a first elastic member connecting the first floating plate and the fixed base; when the rotating mechanism is in a flattened state, the first floating plate pulls the first elastic piece and enables the first elastic piece to be in a stretched state; when the rotating mechanism is in a folded state, the first floating plate releases the first elastic piece so that the first elastic piece is in a natural state or a compressed state.

5. The rotating mechanism according to claim 4, wherein the first elastic member is installed in the fixed base, and one end of the first elastic member is connected to the fixed base, and the other end is fixedly connected to the first floating plate;

the first main swing arm can rotate towards the direction close to the fixed base so as to prop against the first floating plate and stretch the first elastic piece, the first main swing arm can also rotate towards the direction far away from the fixed base so as to release the first floating plate, and the first elastic piece is elastically restored so as to enable the first floating plate to rotate towards the inside of the fixed base.

6. The rotating mechanism according to claim 4 or 5, wherein the rotating mechanism comprises a second elastic member, the second elastic member is installed in the fixed base, one end of the second elastic member is connected with the fixed base, and the other end of the second elastic member is fixedly connected with the second floating plate;

the second main swing arm can rotate towards the direction close to the fixed base so as to prop against the second floating plate and stretch the second elastic piece, the second main swing arm can also rotate towards the direction far away from the fixed base so as to release the second floating plate, and the second elastic piece is elastically restored so as to enable the second floating plate to rotate towards the inside of the fixed base.

7. The rotating mechanism according to any one of claims 1 to 6, wherein the first main swing arm includes a first rotating body and a first swinging body, the first rotating body is fixedly connected with the first swinging body, and the first rotating body is installed in the first rotating groove and can slide along the first rotating groove; the second main swing arm comprises a second rotating body and a second swinging body, the second rotating body is fixedly connected with the second swinging body, and the second rotating body is arranged in the second rotating groove and can slide along the second rotating groove;

The first swinging body and the second swinging body can rotate towards the direction of approaching to each other so as to drive the first rotating body and the second rotating body to rotate towards the direction of approaching to each other relative to the fixed base, the first rotating body props against the first floating plate, the second rotating body props against the second floating plate, and the first floating plate and the second floating plate are arranged side by side and in parallel so that the rotating mechanism is in a flattened state;

8. The rotary mechanism of claim 7, wherein the rotary mechanism comprises a first fixed plate and a second fixed plate, the first fixed plate is rotatably connected with the first swinging body, and the second fixed plate is rotatably connected with the second swinging body;

The first fixing plate can rotate relative to the fixed base so as to drive the first swinging body to rotate relative to the fixed base, and further drive the first main swinging arm to rotate relative to the fixed base; the second fixing plate can rotate relative to the fixing base so as to drive the second swinging body to rotate relative to the fixing base, and therefore the second main swinging arm is driven to rotate relative to the fixing base.

9. The rotating mechanism according to claim 8, further comprising a first pressing plate and a second pressing plate, wherein the first pressing plate is slidably connected to the first fixing plate, and the first fixing plate can rotate relative to the fixing base when rotating relative to the fixing base; the second pressing plate is in sliding connection with the second fixing plate, and when the second pressing plate rotates relative to the fixing base, the second pressing plate can be driven to rotate relative to the fixing base.

10. The rotating mechanism according to claim 9, wherein the first fixed plate is provided with a first sliding groove, the first pressing plate comprises a first sliding block, the first pressing plate and the first fixed plate are stacked, the first sliding block is located in the first sliding groove, and the first sliding block can slide along the first sliding groove;

The second fixed plate is provided with a third sliding groove, the second pressing plate comprises a second sliding block, the second pressing plate and the second fixed plate are arranged in a stacked mode, the second sliding block is located in the third sliding groove, and the second sliding block can slide along the third sliding groove.

11. The rotating mechanism according to any one of claims 8 to 10, further comprising a synchronization swing arm including a first synchronization swing body, a second synchronization swing body, and a synchronization gear, the first synchronization swing body and the second synchronization swing body being connected to opposite sides of the synchronization gear, respectively; the synchronous gear is arranged in the fixed base, the first synchronous swinging body is in sliding connection with the first fixed plate, and the second synchronous swinging body is in sliding connection with the second fixed plate;

when the first fixed plate rotates relative to the fixed base, the first synchronous swinging body can be driven to rotate relative to the fixed base, so that the second synchronous swinging body is driven to rotate relative to the fixed base through the synchronous gear, and the second fixed plate is driven to rotate relative to the fixed base.

12. The rotating mechanism according to claim 9 or 10, further comprising a first platen swing arm and a second platen swing arm, wherein one end of the first platen swing arm is rotationally connected to the fixed base, and the other end of the first platen swing arm is slidingly connected to the first platen, and when the first platen rotates relative to the fixed base, the first platen swing arm is driven to rotate relative to the fixed base;

one end of the second pressing plate swing arm is rotationally connected with the fixed base, the other end of the second pressing plate swing arm is in sliding connection with the second pressing plate, and when the second pressing plate rotates relative to the fixed base, the second pressing plate swing arm can be driven to rotate relative to the fixed base.

13. The rotary mechanism of claim 11, wherein the rotary mechanism comprises a damping member in contact with the synchronizing gear, the damping member generating a damping force with the synchronizing gear when the synchronizing gear rotates.

14. A foldable electronic device, comprising a first housing, a second housing, a display screen, and a rotation mechanism according to any one of claims 1 to 13, wherein the rotation mechanism is connected between the first housing and the second housing, the display screen is mounted on the first housing, the second housing, and the rotation mechanism, and when the rotation mechanism rotates, the first housing and the second housing relatively rotate, so as to drive the display screen to bend or unfold.

15. The foldable electronic device of claim 14, wherein the display screen comprises a first portion, a second portion, and a foldable portion, the foldable portion connected between the first portion and the second portion, the first portion mounted to the first housing, the second portion mounted to the second housing, the foldable portion disposed opposite the rotating mechanism.

16. The foldable electronic device of claim 15, wherein the first floating plate and the second floating plate are disposed at an angle to form an avoidance space when the foldable electronic device is in a folded state, at least a portion of the foldable portion being located in the avoidance space.