Rotating mechanism and foldable electronic device

Abstract

Provided in the present application are a rotating mechanism and a foldable electronic device. The rotating mechanism comprises a base, a flexible support member, a first rotating member, and a second rotating member. A guide groove is provided in the surface of the first rotating member in the width direction of the first rotating member. The first rotating member and the second rotating member are respectively arranged on opposite sides of the base in the width direction, and are rotatably connected to the base. The flexible support member comprises a body and a guide column. A first section, a bent section and a second section of the body are connected in sequence in the width direction of the flexible support member. The guide column is fixedly connected to the first section. The first section and the first rotating member are stacked, the guide column is mounted in the guide groove and can slide along the guide groove, the second section and the second rotating member are stacked and are fixedly connected to the second rotating member, and the bent section is arranged opposite the base. When the rotating mechanism provided in the present application is applied to a foldable electronic device, the technical problem in the prior art that a foldable electronic device is prone to generation of abnormal sound during opening and closing can be solved.

Description

Rotating mechanism and foldable electronic device

[0001] The present application claims priority to the Chinese patent application No. 202410781110.X, filed on June 17, 2024, and entitled "Rotating mechanism and foldable electronic device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of electronic products, and in particular to a rotating mechanism and a foldable electronic device. BACKGROUND

[0003] With the development of technology, the appearance (ID) form of electronic devices (such as mobile phones, tablet computers, etc.) has a trend from straight phones to foldable phones. The foldable phone has a large screen in the open state, fully meeting the visual experience of consumers, and has a small volume in the closed state, being convenient to carry. The foldable phone generally needs to be provided with a support structure to support the flexible display screen. However, the assembly stability of the support structure in the prior art is poor, and abnormal noise is easily generated in the opening and closing process of the electronic device. SUMMARY

[0004] The present application provides a rotating mechanism and a foldable electronic device, which can solve the technical problem that the foldable electronic device in the prior art is prone to generate abnormal noise in the opening and closing process.

[0005] In a first aspect, the present application provides a rotating mechanism. The rotating mechanism is applied to a foldable electronic device. The foldable electronic device includes a first housing, a second housing and a display screen. The rotating mechanism is installed between the first housing and the second housing and is fixedly connected with the first housing and the second housing.

[0006] The display screen includes a first display part, a second display part and a bendable part, the bendable part being connected between the first display part and the second display part. The first display part is installed on the first housing, the second display part is installed on the second housing, and the bendable part is arranged opposite to the rotating mechanism. The first housing and the second housing are relatively rotated through the rotating mechanism, driving the bendable part of the display screen to bend, and causing the bendable part of the display screen to bend.

[0007] The rotating mechanism includes a base, a flexible support, a first rotating part and a second rotating part. The first rotating part and the second rotating part are respectively located on opposite sides of the base in the width direction and are rotatably connected with the base. Moreover, the first rotating part is fixedly connected with the first housing, and the second rotating part is fixedly connected with the second housing.

[0008] The flexible support member comprises a body and a guide column. The body comprises a first segment, a second segment and a curved segment. The first segment, the curved segment and the second segment are sequentially connected along the width direction of the flexible support member. The guide column is fixedly connected with the first segment.

[0009] The flexible support member is laminated on the same side of the first rotating member, the base and the second rotating member. The first segment is laminated with the first rotating member, the guide column is installed in the guide groove and can slide along the guide groove. The second segment is laminated with the second rotating member and is fixedly connected with the second rotating member. The curved segment is oppositely arranged with the base.

[0010] The rotating mechanism has a folded state and an unfolded state. When the rotating mechanism is in the unfolded state, the foldable electronic device is in the unfolded state, the first rotating member and the second rotating member are relatively unfolded, the flexible support member is flattened, the bendable part of the display screen is arranged on the side of the flexible support member facing away from the base, and the surface of the flexible support member is substantially planar, so as to improve the flatness of the display screen arranged on the surface of the flexible support member, improve the support effect on the display screen and the reliability of the display screen.

[0011] When the first shell and the second shell are relatively rotated, the first rotating member and the second rotating member are driven to relatively rotate. When the rotating mechanism is switched from the unfolded state to the folded state, the first rotating member and the second rotating member are relatively rotated towards the direction of relatively approaching. The first rotating member can drive the first segment to relatively rotate with respect to the base and make the guide column slide along the guide groove. The second rotating member can drive the second segment to relatively rotate with respect to the base. The first segment and the second segment jointly drive the curved segment to bend towards the base and form an avoiding space between the first rotating member and the second rotating member.

[0012] When the rotating mechanism is in the folded state, the first rotating member and the second rotating member are relatively folded, the flexible support member is located between the first rotating member and the second rotating member, and the curved segment is bent towards the base. At least part of the bendable part is located in the avoiding space of the rotating mechanism. The bending of the curved segment of the flexible support member can avoid the bendable part of the display screen, so as to avoid the extrusion of the rotating mechanism on the display screen, so that the bendable part will not be bent at a large angle, and the display screen will not produce creases and other adverse phenomena, which helps to prolong the service life of the display screen.

[0013] In the embodiment, the guiding column is arranged on the flexible support, and the guiding groove is arranged on the first rotating piece, so that the guiding column can slide along the guiding groove when the rotating mechanism rotates, to drive the flexible support to slide relative to the first rotating piece, thereby the movement track of the flexible support can be constrained, so that the flexible support can slide relative to the first rotating piece along the extension direction of the guiding groove, that is, the flexible support can move according to the predetermined movement track, thereby the flexible support can be prevented from bouncing and generating abnormal sound during movement, and the use experience of the user can be improved.

[0014] In addition, the rotating mechanism provided in the embodiment can realize the sliding connection between the flexible support and the first rotating piece by arranging the guiding groove on the first rotating piece and the guiding column on the flexible support, the structure is simple, the number of parts is small, the assembly process can be simplified, and the production cost can be reduced. In addition, the movement relationship of the flexible support is simple and not easy to be damaged, and the service life of the rotating mechanism can be prolonged.

[0015] In a possible implementation, the body is a thin steel sheet. In other implementations, the body can also be a thin sheet of other metal materials, or the body can also be made of a high polymer material or a super elastic material. Here, the material of the body is not specifically limited, as long as the body can be bent.

[0016] It should be noted that, in the embodiment, the body of the flexible support is divided into the first segment, the curved segment and the second segment for the convenience of description, and the structure of the flexible support is not limited. In fact, the body is an integrally formed structure, and the first segment and the second segment are formed by extending outward from both ends of the curved segment.

[0017] In a possible implementation, the guiding column is bonded to the surface of the body by an adhesive. In other embodiments, the guiding column can also be fixedly connected to the body by welding, clamping or other means. Alternatively, the guiding column and the body can also be obtained by integral molding.

[0018] In a possible implementation, the flexible support further comprises a protective body. In the embodiment, the protective body is a thin film material. In other embodiments, the protective body can also be a plastic sheet or a sheet of other flexible material. The protective body is wrapped on the surface of the body and is fixedly connected to the body. The protective body protects the body.

[0019] In a possible implementation, the first rotating member comprises a first fixed frame, a first door plate and a first main swing arm. One end of the first main swing arm is rotatably and slidably connected to the base, and the other end is rotatably connected to the first fixed frame. The first door plate is rotatably and slidably connected to the first fixed frame. The second rotating member comprises a second fixed frame, a second door plate and a second main swing arm. One end of the second main swing arm is rotatably and slidably connected to the base, and the other end is rotatably connected to the second fixed frame. The second door plate is rotatably and slidably connected to the second fixed frame.

[0020] The guide groove is recessed in the surface of the first door plate, and the extension direction of the guide groove is parallel to the width direction of the first door plate. In the thickness direction of the first door plate, the first section is arranged in a stacked manner with the first door plate. In the thickness direction of the second door plate, the second section is arranged in a stacked manner with the second door plate and is fixedly connected to each other.

[0021] When the first housing rotates relative to the base, the first fixed frame is driven to rotate relative to the base, thereby driving the first door plate and the first main swing arm to rotate relative to the base, and causing the first door plate to slide and rotate relative to the first fixed frame. When the first door plate rotates relative to the base, the first section is driven to rotate relative to the base, and the guide column slides in the width direction of the first door plate.

[0022] When the second housing rotates relative to the base, the second fixed frame is driven to rotate relative to the base, thereby driving the second door plate and the second main swing arm to rotate relative to the base, and causing the second door plate to slide and rotate relative to the second fixed frame. When the second door plate rotates relative to the base, the second section is driven to rotate relative to the base.

[0023] That is, in the present embodiment, by rotating the first door plate and the second door plate relative to each other, the first section and the second section are driven to rotate, and then the bending section is caused to bend or flatten, which can improve the stability of the movement of the support member.

[0024] In a possible implementation, the rotating mechanism further comprises an adhesive member. The adhesive member can be glue dispensing, back glue or other glue. The adhesive member is bonded between the second section and the second door plate to achieve the fixed connection of the second section and the second door plate. In the present embodiment, the fixed connection of the flexible support member and the second door plate is achieved by the adhesive member, which can simplify the structure and reduce the cost. In other implementations, the second section can be fixedly connected to the second door plate by welding, bolt connection or other means.

[0025] In a possible implementation, the first door panel includes a first side surface and a second side surface, the first side surface and the second side surface are oppositely arranged along a width direction of the first door panel, and the first side surface faces the base. The guide slot is provided with a mounting opening, the mounting opening is located at one end of the guide slot in a length direction of the guide slot, and penetrates through the first side surface.

[0026] In this embodiment, the mounting opening is arranged at one end of the guide slot, so that the guide column can be mounted into the guide slot through the mounting opening, thereby simplifying the assembly process of the rotating mechanism.

[0027] In a possible implementation, the guide slot includes a stop wall. The stop wall is oppositely arranged with the mounting opening along an extension direction of the guide slot.

[0028] During rotation of the rotating mechanism from the unfolded state to the folded state, the guide column slides from the stop wall to the mounting opening. During rotation of the rotating mechanism from the folded state to the unfolded state, the guide column moves from the opening to the stop wall. When the rotating mechanism is in the unfolded state, the guide column abuts against the stop wall.

[0029] In this embodiment, the stop wall arranged at one end of the guide slot can stop the guide column, thereby preventing the guide column from being pulled out of the guide slot, and also preventing the rotating mechanism from being over-unfolded. That is, when the first rotating member continues to rotate in the unfolding direction when the rotating mechanism is in the unfolded state, the stop wall stops the guide column, thereby preventing the flexible support member from continuing to unfold, and preventing the first rotating member from continuing to rotate in the unfolding direction, and further preventing the rotating mechanism from being over-unfolded.

[0030] In a possible implementation, the first door panel further includes a first upper surface and a first lower surface, the first upper surface and the first lower surface are oppositely arranged along a thickness direction of the first door panel, and are both connected between the first side surface and the second side surface.

[0031] The guide slot includes a first sub-slot and a second sub-slot, the first sub-slot and the second sub-slot are connected and communicated along a thickness direction of the first door panel. The second sub-slot penetrates through the first upper surface, and the first sub-slot is close to the first lower surface. Along a length direction parallel to the first door panel, a size of the first sub-slot is greater than a size of the second sub-slot.

[0032] The guide column comprises a connecting section and a limiting section, the connecting section and the limiting section are connected, and one end of the connecting section away from the limiting section is fixedly connected with the body. Along the length direction parallel to the flexible support, the size of the limiting section is greater than that of the connecting section. The limiting section is installed in the first sub-groove, and the connecting section is installed in the second sub-groove.

[0033] In the embodiment, the width of the first sub-groove of the guide groove is greater than the size of the second sub-groove, so that when the guide column is installed in the guide groove, the limiting section is limited in the first sub-groove, that is, the guide groove can limit the guide column in the thickness direction of the first door plate, thereby preventing the guide column from being pulled out of the guide groove, and improving the connection stability between the flexible support and the first door plate.

[0034] In a possible implementation, the rotating mechanism further comprises a floating plate. The floating plate is installed on the base and located between the base and the flexible support. When the rotating mechanism is in the unfolded state, the first rotating piece and the second rotating piece abut against the floating plate along the thickness direction of the base. When the rotating mechanism rotates from the unfolded state to the folded state, the first rotating piece and the second rotating piece release the floating plate and drive the floating plate to move towards the base.

[0035] In the embodiment, the floating plate is arranged at the bottom of the flexible support, so that when the rotating mechanism is in the unfolded state, the floating plate can support the flexible support, which can weaken the pressing virtual position sense of the display screen and improve the user experience. It should be explained that the rigidity of the floating plate is large and is not easy to deform. When the foldable electronic device is unfolded, the display screen is pressed at the position corresponding to the base above the display screen, the floating plate supports the display screen of the flexible support, so that the display screen is not easy to deform towards the base, thereby weakening the pressing virtual position sense of the display screen.

[0036] In a possible implementation, the rotating mechanism comprises a bearing block, the bearing block is installed on the base, and the floating plate is installed on the side of the bearing block away from the base. When the rotating mechanism is in the unfolded state, the first rotating piece and the second rotating piece abut against the bearing block to abut against the floating plate. When the rotating mechanism rotates from the unfolded state to the folded state, the first rotating piece and the second rotating piece release the bearing block and drive the bearing block to move towards the base, and the bearing block drives the floating plate to move towards the base.

[0037] In the embodiment, the floating plate is arranged on the bearing block, and the first rotating piece and the second rotating piece drive the bearing block to move to drive the floating plate to move, thereby improving the stability of the movement of the floating plate.

[0038] In a possible implementation, the bearing block is provided with a first abutting protrusion and a second abutting protrusion on a side facing the first rotating member, the first abutting protrusion and the second abutting protrusion are arranged in a thickness direction of the base, and the first abutting protrusion is located on a side of the second abutting protrusion close to the floating plate. The first rotating member includes a first auxiliary swing arm, one end of the first auxiliary swing arm is rotationally connected to the base, and the other end is slidingly connected to a first fixed frame.

[0039] When the rotating mechanism is in the unfolded state, the first auxiliary swing arm abuts against the first abutting protrusion. When the rotating mechanism is in the folded state, the first auxiliary swing arm releases the first abutting protrusion and abuts against the second abutting protrusion.

[0040] In this embodiment, the first abutting protrusion is arranged on the bearing block, and the first auxiliary swing arm abuts against the first abutting protrusion to support the bearing block, thereby supporting the floating plate. The stability of the bearing block and the floating plate can be improved, the floating plate can be prevented from moving towards the base when being pressed, the supporting effect of the floating plate is enhanced, and the virtual position feeling of the display screen when being pressed is further weakened. In this embodiment, the second abutting protrusion is arranged on the bearing block, the first auxiliary swing arm abuts against the second abutting protrusion when the rotating mechanism is in the folded state, the first auxiliary swing arm limits the bearing block in the thickness direction of the base, and the bearing block and the floating plate can be prevented from moving towards the flexible support and the display screen, thereby further preventing the floating plate from pressing the flexible support and the display screen and preventing damage to the flexible support and the display screen.

[0041] In a possible implementation, the bearing block is provided with a third abutting protrusion and a fourth abutting protrusion on a side facing the second rotating member, the third abutting protrusion and the fourth abutting protrusion are arranged in a thickness direction of the base, and the third abutting protrusion is located on a side of the fourth abutting protrusion close to the floating plate. The second rotating member includes a second auxiliary swing arm, one end of the second auxiliary swing arm is rotationally connected to the base, and the other end is slidingly connected to a second fixed frame.

[0042] When the rotating mechanism is in the unfolded state, the second auxiliary swing arm abuts against the third abutting protrusion. When the rotating mechanism is in the folded state, the second auxiliary swing arm releases the third abutting protrusion and abuts against the fourth abutting protrusion.

[0043] When the rotating mechanism is in the unfolded state, the first auxiliary swing arm and the second auxiliary swing arm jointly support the bearing block on opposite sides in a width direction of the base, so that the force acting on the bearing block is balanced, thereby further improving the supporting effect of the bearing block and the floating plate.

[0044] In a possible implementation, the first rotating member further comprises a first connecting member, and the first connecting member is provided with a first guide slot, and the first guide slot is arc-shaped. The first fixed frame is provided with a first guide block, and the first guide block is arc-shaped. The first connecting member is fixedly connected with the first door plate, the first guide block is installed in the first guide slot, and the first guide block can slide along the first guide slot in an arc shape.

[0045] The second rotating member further comprises a second connecting member, and the second connecting member is provided with a third guide slot, and the third guide slot is arc-shaped. The second fixed frame is provided with a second guide block, and the second guide block is arc-shaped. The second connecting member is fixedly connected with the second door plate, the second guide block is installed in the third guide slot, and the second guide block can slide along the third guide slot in an arc shape.

[0046] In this embodiment, the first connecting member is arranged between the first door plate and the first fixed frame to achieve arc sliding of the first door plate relative to the first fixed frame, and the second connecting member is arranged between the second door plate and the second fixed frame to achieve arc sliding of the second door plate relative to the second fixed frame, so that the included angle between the first door plate and the second door plate can be adjusted, which is conducive to forming a "water drop-shaped" avoiding space when the rotating mechanism is in a folded state, to adapt to the bending of the flexible support and realize the folding angle of the bendable part of the display screen, so as to avoid that the first door plate and the second door plate press the flexible support when the rotating mechanism is in the folded state, and then press the display screen.

[0047] In a possible implementation, the first connecting member is further provided with a second guide slot, and the second guide slot is arranged in parallel with the first guide slot. The first auxiliary swing arm is provided with a first shaft body, and the extension direction of the first shaft body is parallel to the length direction of the rotating mechanism. One end of the first auxiliary swing arm is rotationally connected with the base, and the other end is slidingly connected with the first fixed frame. The first shaft body is installed in the second guide slot and can slide along the second guide slot.

[0048] In this embodiment, the first connecting member is rotationally and slidingly connected with the first auxiliary swing arm, so that when the first fixed frame drives the first auxiliary swing arm and the first connecting member to rotate, the first auxiliary swing arm rotates and slides relative to the first connecting member, so that the rotation stability of the first connecting member can be improved, and the rotation stability of the first door plate can be improved.

[0049] In a possible implementation, the second connecting piece is further provided with a fourth guide slot, which is arranged in parallel with the third guide slot. The second auxiliary swing arm is provided with a second shaft body, which is arranged in parallel with the length direction of the rotating mechanism. One end of the second auxiliary swing arm is rotatably connected to the base, and the other end is slidably connected to the second fixed frame. The second shaft body is arranged in the fourth guide slot and can slide along the fourth guide slot.

[0050] In this embodiment, the second connecting piece and the second auxiliary swing arm are rotatably and slidably connected. When the second fixed frame drives the second auxiliary swing arm and the second connecting piece to rotate, the second auxiliary swing arm rotates and slides relative to the second connecting piece, so that the rotation stability of the second connecting piece can be improved, and the rotation stability of the second door panel can be improved.

[0051] In a second aspect, the present application further provides a foldable electronic device. The foldable electronic device comprises a first housing, a second housing, a display screen and a rotating mechanism. The rotating mechanism is connected between the first housing and the second housing. The display screen comprises a first display part, a second display part and a bendable part, the bendable part being connected between the first display part and the second display part. The first display part is mounted on the first housing, the second display part is mounted on the second housing, and the bendable part is arranged opposite to the flexible support.

[0052] When the foldable electronic device is in a folded state, the first housing and the second housing are folded relative to each other, the bendable part is bent towards the base, and at least part of the bendable part is located in the avoiding space of the rotating mechanism.

[0053] The avoiding space formed by the rotating mechanism can avoid the R angle formed when the bendable part is bent, so that the display screen can be prevented from being squeezed by the rotating mechanism, the bendable part can not be bent at a large angle, and the display screen can be prevented from being damaged, such as being folded, which helps to prolong the service life of the display screen.

[0054] In summary, the rotating mechanism provided by the present application can make the guide column slide along the guide slot to drive the flexible support to slide relative to the first rotating member when the rotating mechanism rotates, so as to constrain the movement track of the flexible support, so that the flexible support can slide relative to the first rotating member along the extension direction of the guide slot, that is, the flexible support can move along the predetermined movement track, so as to reduce the rebound and abnormal sound of the flexible support during movement, and thus improve the user experience.

[0055] Furthermore, the rotating mechanism provided in this application achieves a sliding connection between the flexible support and the first rotating component by providing a guide groove in the first rotating component and a guide post in the flexible support component. This results in a simple structure with fewer parts, simplifying the assembly process and reducing production costs. Additionally, the flexible support component has a simple motion relationship, is less prone to damage, and can extend the service life of the rotating mechanism. Attached Figure Description

[0056] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0057] Figure 1 is a structural schematic diagram of the foldable electronic device provided in the first state according to an embodiment of this application;

[0058] Figure 2 is a structural schematic diagram of the foldable electronic device provided in the embodiment of this application in the second state;

[0059] Figure 3 is a structural schematic diagram of the foldable electronic device provided in the embodiment of this application in the third state;

[0060] Figure 4 is an exploded structural diagram of the foldable electronic device shown in Figure 3;

[0061] Figure 5 is a schematic diagram of the rotating mechanism in the foldable electronic device shown in Figure 4.

[0062] Figure 6 is a partially exploded structural diagram of the rotating mechanism shown in Figure 5.

[0063] Figure 7 is a partially exploded structural diagram of the rotating mechanism shown in Figure 5;

[0064] Figure 8 is a partial structural diagram of the base in the rotating mechanism shown in Figure 7;

[0065] Figure 9 is a partially exploded structural diagram of the rotating mechanism shown in Figure 7;

[0066] Figure 10 is a schematic diagram of the first and second swing arms in the rotating mechanism shown in Figure 9.

[0067] Figure 11 is a partial structural schematic diagram of the rotating mechanism shown in Figure 5 in its unfolded state;

[0068] Figure 12 is a partial structural schematic diagram of the rotating mechanism shown in Figure 11 in a folded state;

[0069] Figure 13 is an enlarged schematic diagram of the first and second fixed frames in the rotating mechanism shown in Figure 7;

[0070] Figure 14 is a partial structural schematic diagram of the rotating mechanism shown in Figure 5;

[0071] Fig. 15 is a schematic view of a partial structure of the first door panel and the second door panel in the rotation mechanism shown in Fig. 7;

[0072] Fig. 16 is a schematic view of a partial exploded structure of the rotation mechanism shown in Fig. 7;

[0073] Fig. 17 is a schematic view of a partial exploded structure of the rotation mechanism shown in Fig. 7;

[0074] Fig. 18 is a schematic view of a partial structure of the rotation mechanism shown in Fig. 5;

[0075] Fig. 19 is a schematic view of a cross-sectional structure of the rotation mechanism shown in Fig. 5;

[0076] Fig. 20 is a schematic view of a cross-sectional structure of the rotation mechanism shown in Fig. 5;

[0077] Fig. 21 is a schematic view of a cross-sectional structure of the rotation mechanism shown in Fig. 19 in a folded state;

[0078] Fig. 22 is a schematic view of a cross-sectional structure of the rotation mechanism shown in Fig. 20 in a folded state;

[0079] Fig. 23 is a schematic view of a structure of a flexible support in the rotation mechanism shown in Fig. 6;

[0080] Fig. 24 is a schematic view of a partial structure of the flexible support shown in Fig. 23;

[0081] Fig. 25 is a schematic view of a cross-sectional structure of the rotation mechanism shown in Fig. 5;

[0082] Fig. 26 is a schematic view of a cross-sectional structure of the rotation mechanism shown in Fig. 25 in a folded state;

[0083] Fig. 27 is a schematic view of a partial exploded structure of the rotation mechanism shown in Fig. 5;

[0084] Fig. 28 is a schematic view of a partial structure of the rotation mechanism shown in Fig. 5;

[0085] Fig. 29 is a schematic view of a cross-sectional structure of the rotation mechanism shown in Fig. 5;

[0086] Fig. 30 is a schematic view of a cross-sectional structure of the rotation mechanism shown in Fig. 5;

[0087] Fig. 31 is a schematic view of a cross-sectional structure of the rotation mechanism shown in Fig. 30 in a folded state;

[0088] Fig. 32 is a schematic view of a structure of the rotation mechanism shown in Fig. 29 in a folded state. DETAILED DESCRIPTION

[0089] The embodiments of the present application will be described below with reference to the accompanying drawings.

[0090] Please refer to FIG. 1 to FIG. 3, FIG. 1 is a structural schematic diagram of a foldable electronic device 1000 in a first state according to an embodiment of the present application, FIG. 2 is a structural schematic diagram of the foldable electronic device 1000 in a second state according to an embodiment of the present application, and FIG. 3 is a structural schematic diagram of the foldable electronic device 1000 in a third state according to an embodiment of the present application.

[0091] For ease of description, a width direction of the foldable electronic device 1000 is defined as an X direction, a length direction of the foldable electronic device 1000 is defined as a Y direction, and a thickness direction of the foldable electronic device 1000 is defined as a Z direction. The X direction, the Y direction and the Z direction are perpendicular to each other in pairs.

[0092] The foldable electronic device 1000 includes, but is not limited to, a cellphone, a notebook computer, a tablet personal computer, a laptop computer, a personal digital assistant, a wearable device, a mobile device, or the like. In the embodiments of the present application, the foldable electronic device 1000 is taken as an example of a cellphone.

[0093] The foldable electronic device 1000 shown in FIG. 1 is in a folded state, the foldable electronic device 1000 shown in FIG. 2 is in a half-opened state, and the foldable electronic device 1000 shown in FIG. 3 is in an opened state. The opening angle a of the foldable electronic device 1000 shown in FIG. 2 is 90 degrees, and the opening angle β of the foldable electronic device 1000 shown in FIG. 3 is 180 degrees.

[0094] It should be noted that the angles illustrated in the embodiments of the present application are allowed to have a small deviation. For example, the opening angle a of the foldable electronic device 1000 shown in FIG. 2 is 90 degrees, which means that a can be 90 degrees, or approximately 90 degrees, such as 80 degrees, 85 degrees, 95 degrees, or 0 degree, etc. The opening angle β of the foldable electronic device 1000 shown in FIG. 3 is 180 degrees, which means that β can be 180 degrees, or approximately 180 degrees, such as 170 degrees, 175 degrees, 185 degrees, 190 degrees, etc. The angles illustrated in the following embodiments can be understood in the same way.

[0095] The foldable electronic device 1000 shown in the embodiments of the present application is an electronic device that can be folded once. In some other embodiments, the foldable electronic device 1000 can also be an electronic device that can be folded multiple times (more than twice). At this time, the foldable electronic device 1000 can include multiple parts, and adjacent two parts can be relatively close to be folded to the foldable electronic device 1000 in a folded state, and adjacent two parts can be relatively far away to be unfolded to the foldable electronic device 1000 in an unfolded state.

[0096] Please refer to FIG. 4, which is an exploded structural schematic diagram of the foldable electronic device 1000 shown in FIG. 3.

[0097] The foldable electronic device 1000 includes a folding device 200 and a display screen 300, and the display screen 300 is installed on the folding device 200. The display screen 300 includes a display surface 310 and a mounting surface 320, and the display surface 310 and the mounting surface 320 are oppositely arranged. The display surface 310 is used to display text, images, and videos, etc. The display screen 300 includes a first display part 330, a second display part 340, and a bendable part 350. The bendable part 350 is located between the first display part 330 and the second display part 340, and the bendable part 350 can be bent around the direction with the Y direction as the axis. The first display part 330, the second display part 340, and the bendable part 350 jointly constitute the display screen 300. In the embodiments, the display screen 300 adopts a flexible display screen, for example, an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode display screen, a micro organic light-emitting diode display screen, a micro organic light-emitting diode display screen, and a quantum dot light emitting diode (QLED) display screen.

[0098] The folding device 200 comprises a first housing 210, a second housing 220 and a rotating mechanism 100. The rotating mechanism 100 is located between the first housing 210 and the second housing 220 and fixedly connected with the first housing 210 and the second housing 220 to realize the rotating connection between the first housing 210 and the second housing 220. A display screen 300 is installed on the folding device 200, and a mounting surface 320 is fixedly connected with the folding device 200. Specifically, the first housing 210 carries a first display part 330 of the display screen 300, and the second housing 220 carries a second display part 340. In other words, the first display part 330 is installed on the first housing 210, and the second display part 340 is installed on the second housing 220. The rotating mechanism 100 is arranged opposite to a bendable part 350. The first housing 210 and the second housing 220 can be relatively rotated through the rotating mechanism 100, so that the folding device 200 is switched between the folded state and the unfolded state.

[0099] In combination with FIG. 1, the first housing 210 and the second housing 220 are relatively rotated through the rotating mechanism 100, and the display screen 300 is folded by relatively approaching the first housing 210 and the second housing 220, so that the foldable electronic device 1000 is folded. When the foldable electronic device 1000 is in the folded state, the bendable part 350 of the display screen 300 is bent, and the first display part 330 and the second display part 340 are arranged opposite to each other. At this time, the display screen 300 is between the first housing 210 and the second housing 220, which can greatly reduce the probability of damage to the display screen 300 and realize effective protection of the display screen 300.

[0100] Please refer to FIG. 2 and FIG. 4 together, the first housing 210 and the second housing 220 are relatively rotated through the rotating mechanism 100, and the display screen 300 is unfolded by relatively moving away the first housing 210 and the second housing 220, so that the foldable electronic device 1000 is unfolded to a half-unfolded state. When the foldable electronic device 1000 is in the half-unfolded state, the first housing 210 and the second housing 220 are unfolded to an included angle of a, the first display part 330 and the second display part 340 are relatively unfolded, and the bendable part 350 is unfolded. At this time, the included angle between the first display part 330 and the second display part 340 is a. In the embodiment, a is 90 degrees. In other embodiments, a can also be about 90 degrees, and can also be 80 degrees, 85 degrees, 95 degrees or 0 degrees, etc.

[0101] Please refer to FIG. 3 and FIG. 4, the first shell 210 and the second shell 220 are relatively rotated through the rotating mechanism 100, the display screen 300 is further unfolded by relatively moving away the first shell 210 and the second shell 220, until the foldable electronic device 1000 is unfolded. When the folding device 200 is in the unfolded state, the included angle between the first shell 210 and the second shell 220 is β. The bendable part 350 is unfolded, and the first display part 330 and the second display part 340 are relatively unfolded. At this time, the included angle between the first display part 330, the second display part 340 and the bendable part 350 is β, the display screen 300 has a large display area, realizing large-screen display of the foldable electronic device 1000, and improving the user experience. In the embodiment, β is 180 degrees. In other embodiments, β can be about 180 degrees, which can be 170 degrees, 175 degrees, 185 degrees and 190 degrees, etc.

[0102] It should be noted that the included angle α and the included angle β are the included angles between the first shell 210 and the second shell 220, which are only used to distinguish the angles between the first shell 210 and the second shell 220 in different states of the foldable electronic device 1000. Among them, the included angle α refers to the angle between the first shell 210 and the second shell 220 when the foldable electronic device 1000 is in the half-unfolded state; the included angle β refers to the angle between the first shell 210 and the second shell 220 when the foldable electronic device 1000 is in the unfolded state.

[0103] Please refer to FIG. 5 and FIG. 6, FIG. 5 is a structural schematic diagram of the rotating mechanism 100 in the foldable electronic device 1000 shown in FIG. 4, and FIG. 6 is a partially exploded structural schematic diagram of the rotating mechanism 100 shown in FIG. 5.

[0104] The rotating mechanism 100 includes a base 10, a first rotating part 1, a second rotating part 2 and a flexible support 70. The first rotating part 1 and the second rotating part 2 are respectively located on opposite sides of the base 10 in the width direction (X direction) and are rotationally connected with the base 10. The first rotating part 1 is provided with a guide groove 52. The back of the flexible support 70 is provided with a guide column 73 which is matched with the structure of the guide groove 52. The flexible support 70 is installed on the same side of the base 10, the first rotating part 1 and the second rotating part 2. One end of the flexible support 70 in the X direction is stacked with the first rotating part 1, the guide column 73 is installed in the guide groove 52 and can slide along the guide groove 52. The other end of the flexible support 70 is fixedly connected with the second rotating part 2. When the rotating mechanism 100 is rotated from the unfolded state to the folded state, the first rotating part 1 and the second rotating part 2 are rotated towards each other, the guide column 73 slides along the guide groove 52, and the flexible support 70 is bent to avoid the display screen 300.

[0105] It should be noted that the specific structure of the guide groove 52 and the guide post 73 will be described below, and will not be described in detail here.

[0106] In this embodiment, by providing the guide post 73 on the flexible support 70 and the guide groove 52 matched with the guide post 73 on the first rotating member 1, when the rotating mechanism 100 rotates, the guide post 73 can slide along the guide groove 52 to drive the flexible support 70 to slide relative to the first rotating member 1, so as to constrain the movement track of the flexible support 70, thereby reducing or even avoiding the flexible support 70 from bouncing and producing abnormal sound during movement, and further improving the user's experience.

[0107] For ease of description, a reference surface P (as shown in FIG. 5) is provided in this application. The reference surface P is perpendicular to the X direction, and the reference surface P passes through the center of the rotating mechanism 100. In this embodiment, the rotating mechanism 100 is mirror-symmetrical about the reference surface P. In other embodiments, the rotating mechanism 100 can also be an asymmetric structure.

[0108] Please refer to FIG. 6 and FIG. 7 together, and FIG. 7 is a partially exploded structural schematic view of the rotating mechanism 100 shown in FIG. 5.

[0109] The first rotating member 1 includes a first fixed frame 41, a first door plate 51, a first main swing arm 21 and a first auxiliary swing arm 31. The first rotating member 1 is installed on the positive direction side of the X axis of the base 10. The first main swing arm 21 and the first auxiliary swing arm 31 are both connected between the first fixed frame 41 and the base 10. The first door plate 51 is installed on the first fixed frame 41 and is rotationally connected with the first fixed frame 41. When the first fixed frame 41 rotates relative to the base 10, the first main swing arm 21, the first auxiliary swing arm 31 and the first door plate 51 are driven to rotate relative to the base 10, and at the same time, the first door plate 51 is driven to rotate and slide relative to the first fixed frame 41.

[0110] The second rotating member 2 includes a second fixed frame 42, a second door plate 53, a second main swing arm 22 and a second auxiliary swing arm 32. The second rotating member 2 is installed on the negative direction side of the X axis of the base 10. The second main swing arm 22 and the second auxiliary swing arm 32 are both connected between the second fixed frame 42 and the base 10. The second door plate 53 is installed on the second fixed frame 42 and is rotationally connected with the second fixed frame 42. When the second fixed frame 42 rotates relative to the base 10, the second main swing arm 22, the second auxiliary swing arm 32 and the second door plate 53 are driven to rotate relative to the base 10, and at the same time, the second door plate 53 is driven to rotate and slide relative to the second fixed frame 42.

[0111] It should be noted that the rotating mechanism 100 comprises a plurality of rotating structures 3. Each rotating structure 3 comprises a first fixed frame 41, a first main swing arm 21, a first auxiliary swing arm 31, a second fixed frame 42, a second main swing arm 22 and a second auxiliary swing arm 32. The rotating mechanism 100 in the embodiment comprises two rotating structures 3. The two rotating structures 3 are arranged along the Y direction and are spaced apart from each other on the base 10. The two rotating structures 3 are arranged symmetrically along the center line of the base 10 in the Y direction. In order to enhance the stability of the entire rotating mechanism 100, a rotating structure 3 is additionally arranged between the two rotating structures 3 at the two ends of the base 10, and the rotating structure 3 is located at the middle of the base 10. In order to further enhance the stability of the entire rotating mechanism 100, two rotating structures 3 can also be directly arranged between the two rotating structures 3 at the two ends of the base 10. The number of the rotating structures 3 can be adjusted according to actual conditions, and is not specifically limited here.

[0112] In other embodiments, each rotating structure 3 can also comprise a plurality of first main swing arms 21, or a plurality of first auxiliary swing arms 31, or a plurality of second main swing arms 22, or a plurality of second auxiliary swing arms 32.

[0113] The first fixed frames 41 of the plurality of rotating structures 3 can be a split structure, i.e., a separate structure, and are not fixed to each other. Alternatively, the first fixed frames 41 of the plurality of rotating structures 3 can be fixedly connected to each other, or can be an integral structure. The second fixed frames 42 of the plurality of rotating structures 3 can be a split structure, can be fixedly connected to each other, or can be an integral structure.

[0114] In some other embodiments, the rotating mechanism 100 can further comprise a synchronization assembly and a damping assembly. The synchronization assembly is installed on the base 10 and is connected with the first fixed frame 41 and the second fixed frame 42. The synchronization assembly is used to realize the synchronous rotation of the structures on the opposite sides of the base 10 in the X direction, i.e., the synchronous rotation of the first rotating member 1 and the second rotating member 2. The damping assembly is installed on the base 10 and is connected with the base 10 and the first rotating member 1 and the second rotating member 2. The damping assembly is used to provide damping force for the rotation of the rotating mechanism 100, thereby providing the user with a damping feeling.

[0115] Please refer to FIG. 8, which is a partial structure diagram of the base 10 in the rotating mechanism 100 shown in FIG. 7.

[0116] The base 10 is a long strip structure. The base 10 comprises a top surface 101, a bottom surface 102, a first side surface 103 and a second side surface 104. The top surface 101 and the bottom surface 102 are oppositely arranged along the Z direction. The first side surface 103 and the second side surface 104 are oppositely arranged and are respectively located at opposite sides of the X direction, and are connected between the top surface 101 and the bottom surface 102. The top surface 101 is curved towards the bottom surface 102 from the center to the opposite ends along the X direction, and forms an avoiding groove 105.

[0117] The base 10 is provided with a first rotating groove 11 and a second rotating groove 12. The first rotating groove 11 and the second rotating groove 12 are both arc-shaped. The first rotating groove 11 and the second rotating groove 12 are oppositely arranged along the X direction. The opening of the first rotating groove 11 in the X direction is located at the first side surface 103. That is, the first rotating groove 11 penetrates the first side surface 103 along the X direction. The first rotating groove 11 is used for mounting the first main swing arm 21, and the first main swing arm 21 can rotate and slide along the first rotating groove 11. The second rotating groove 12 is mirror-symmetrical about the reference surface with the first rotating groove 11. The opening of the second rotating groove 12 in the X direction is located at the second side surface 104. That is, the second rotating groove 12 penetrates the second side surface 104 along the X direction. The second rotating groove 12 is used for mounting the second main swing arm 22, and the second main swing arm 22 can rotate and slide along the second rotating groove 12.

[0118] The rotating mechanism 100 further comprises a first rotating shaft 13 and a second rotating shaft 14. The first rotating shaft 13 and the second rotating shaft 14 are both mounted on the base 10 and are arranged side by side and spaced apart along the X direction. Moreover, the axial directions of the first rotating shaft 13 and the second rotating shaft 14 are both parallel to the Y direction. The first rotating shaft 13 is used for mounting the first auxiliary swing arm 31, and the first auxiliary swing arm 31 can rotate about the first rotating shaft 13. The second rotating shaft 14 is used for mounting the second auxiliary swing arm 32, and the second auxiliary swing arm 32 can rotate about the second rotating shaft 14.

[0119] It should be noted that only the structure of the base 10 in the negative direction of the Y axis is shown in FIG. 8, and the structure of the base 10 in the positive direction of the Y axis is the same as or similar to the structure of the base 10 in the negative direction of the Y axis, and the structure of the base 10 in the positive direction of the Y axis can be appropriately adjusted according to the structure of the rotating structure 3 mounted on the base 10 in the positive direction of the Y axis.

[0120] Please refer to FIG. 9, which is a partially exploded structural schematic diagram of the rotating mechanism 100 shown in FIG. 7.

[0121] The first main swing arm 21 comprises a first rotating body 211, a first swing body 212 and a first shaft seat 213. The first shaft seat 213, the first swing body 212 and the first rotating body 211 are sequentially connected. The shaft hole of the first shaft seat 213 extends in parallel with the Y direction. The top surface of the first rotating body 211 is a plane or substantially a plane. When the rotating mechanism 100 is in the unfolded state, the top surface of the first rotating body 211 is used to jointly support the flexible support member with the first door panel 51 and the second door panel 53. The bottom surface of the first rotating body 211 is an arc surface. When the first main swing arm 21 is installed in the first rotating groove 11, the bottom surface of the first rotating body 211 faces the groove bottom wall of the first rotating groove 11 and can slide along the groove bottom wall of the first rotating groove 11.

[0122] It should be understood that the "top" and "bottom" described herein are based on the orientation of the rotating mechanism 100 shown in FIG. 9, with the "top" facing the positive direction of the Z axis and the "bottom" facing the negative direction of the Z axis, which does not limit the orientation of the rotating mechanism 100 in the actual application scenario.

[0123] The first shaft seat 213 is used to install a third rotating shaft 214. The third rotating shaft 214 is used to connect with the first fixed frame 41 to realize the rotating connection of the first main swing arm 21 and the first fixed frame 41. The third rotating shaft 214 is fixedly installed in the first shaft seat 213 and rotatably installed in the first fixed frame 41. Alternatively, the third rotating shaft 214 can be rotatably installed in the first shaft seat 213 and fixedly installed in the first fixed frame 41.

[0124] The second main swing arm 22 is a mirror image of the first main swing arm 21. The second main swing arm 22 comprises a second rotating body 221, a second swing body 222 and a second shaft seat 223. The second shaft seat 223, the second swing body 222 and the second rotating body 221 are sequentially connected. The second rotating body 221 comprises a bottom surface of the second rotating body 221 and a second support surface 225. The second support surface 225 is a plane or substantially a plane. When the rotating mechanism 100 is in the unfolded state, the second support surface 225 is used to jointly support the flexible support member with the first door panel 51 and the second door panel 53. The bottom surface of the second rotating body 221 is an arc surface. When the second main swing arm 22 is installed in the second rotating groove 12, the bottom surface of the second rotating body 221 faces the groove bottom wall of the second rotating groove 12 and can slide along the groove bottom wall of the second rotating groove 12.

[0125] The second shaft seat 223 is used to install a fourth rotating shaft 224. The fourth rotating shaft 224 is used to connect with the second fixed frame 42 to realize the rotating connection of the second main swing arm 22 and the second fixed frame 42. The fourth rotating shaft 224 is fixedly installed in the second shaft seat 223 and rotatably installed in the second fixed frame 42. Alternatively, the fourth rotating shaft 224 can be rotatably installed in the second shaft seat 223 and fixedly installed in the second fixed frame 42.

[0126] Please refer to Fig. 10, which is a structural diagram of the first sub-swing arm 31 and the second sub-swing arm 32 in the rotating mechanism 100 shown in Fig. 9.

[0127] The first sub-swing arm 31 comprises a first sub-axle seat 311, a first sliding body 312 and a first axle body 313. The first sliding body 312 is connected with the first sub-axle seat 311. The first sliding body 312 is used for sliding connection with the first fixed frame 41. The first axle body 313 is fixedly connected with the first sliding body 312, and the extension direction of the first axle body 313 is parallel to the Y direction. The first axle body 313 is used for rotating and sliding connection with the first door panel 51. The shaft hole of the first sub-axle seat 311 extends in parallel to the Y direction. The first sub-axle seat 311 is used for rotating connection with the first rotating shaft 13 on the base 10, so as to realize the rotating connection between the first sub-swing arm 31 and the base 10. The first sub-axle seat 311 is provided with a first abutting table 314 and a second abutting table 315. The table surface of the first abutting table 314 faces the positive direction of the Z axis, and the table surface of the second abutting table 315 faces the negative direction of the Z axis. The first abutting table 314 and the second abutting table 315 are used for connection with the floating plate 90 of the rotating mechanism 100, so as to realize the floating of the floating plate 90 along the Z direction.

[0128] The second sub-swing arm 32 is mirror-symmetrically structured with the first sub-swing arm 31. The second sub-swing arm 32 comprises a second sub-axle seat 321, a second sliding body 322 and a second axle body 323. The second sliding body 322 is connected with the second sub-axle seat 321. The second sliding body is used for sliding connection with the second fixed frame 42. The second axle body 323 is fixedly connected with the second sliding body 322, and the extension direction of the second axle body 323 is parallel to the Y direction. The second axle body 323 is used for rotating connection with the second door panel 53. The shaft hole of the second sub-axle seat 321 extends in parallel to the Y direction. The second sub-axle seat 321 is used for rotating connection with the second rotating shaft 14 on the base 10, so as to realize the rotating connection between the second sub-swing arm 32 and the base 10. The second sub-axle seat 321 is provided with a third abutting table 324 and a fourth abutting table 325. The table surface of the third abutting table 324 faces the positive direction of the Z axis, and the table surface of the fourth abutting table 325 faces the negative direction of the Z axis. The third abutting table 324 and the fourth abutting table 325 are used for connection with the floating plate 90 of the rotating mechanism 100, so as to realize the floating of the floating plate 90 along the Z direction.

[0129] Please refer to Figs. 11 and 12. Fig. 11 is a partial structural diagram of the rotating mechanism 100 shown in Fig. 5 in an unfolded state, and Fig. 12 is a partial structural diagram of the rotating mechanism 100 shown in Fig. 11 in a folded state.

[0130] The first main swing arm 21 and the first auxiliary swing arm 31 are both installed on the X-axis negative direction side of the base 10 and are arranged at intervals along the Y direction. The first rotating body 211 of the first main swing arm 21 is installed in the first rotating groove 11. The bottom surface of the first rotating body 211 faces the groove bottom wall of the first rotating groove 11. When the first main swing arm 21 rotates relative to the base 10, the first rotating body 211 slides and rotates in the first rotating groove 11, and the bottom surface of the first rotating body 211 slides and rotates along the bottom wall of the first rotating groove 11. The first auxiliary shaft seat 311 of the first auxiliary swing arm 31 is installed on the first rotating shaft 13 and is rotationally connected with the first rotating shaft 13. When the first auxiliary swing arm 31 rotates relative to the base 10, the first auxiliary shaft seat 311 rotates around the first rotating shaft 13.

[0131] The second main swing arm 22 and the second auxiliary swing arm 32 are both installed on the X-axis positive direction side of the base 10 and are arranged at intervals along the Y direction. The second rotating body 221 of the second main swing arm 22 is installed in the second rotating groove 12. The bottom surface of the second rotating body 221 faces the groove bottom wall of the second rotating groove 12. When the second main swing arm 22 rotates relative to the base 10, the second rotating body 221 slides and rotates in the second rotating groove 12, and the bottom surface of the second rotating body 221 slides and rotates along the bottom wall of the second rotating groove 12. The second auxiliary shaft seat 321 of the second auxiliary swing arm 32 is installed on the second rotating shaft 14 and is rotationally connected with the second rotating shaft 14. When the second auxiliary swing arm 32 rotates relative to the base 10, the second auxiliary shaft seat 321 rotates around the second rotating shaft 14.

[0132] The rotating direction of the first main swing arm 21 is opposite to the rotating direction of the second main swing arm 22, and the rotating direction of the first auxiliary swing arm 31 is opposite to the rotating direction of the second auxiliary swing arm 32. For example, when the rotating mechanism 100 switches from the unfolded state to the folded state, the first main swing arm 21 and the first auxiliary swing arm 31 rotate counterclockwise, and the second main swing arm 22 and the second auxiliary swing arm 32 rotate clockwise. When the rotating mechanism 100 switches from the folded state to the unfolded state, the first main swing arm 21 and the first auxiliary swing arm 31 rotate clockwise, and the second main swing arm 22 and the second auxiliary swing arm 32 rotate counterclockwise.

[0133] As shown in FIG. 11, when the rotating mechanism 100 is in the unfolded state, the first main swing arm 21 and the second main swing arm 22 are relatively unfolded. When the rotating mechanism 100 rotates from the unfolded state to the folded state, the first main swing arm 21 and the second main swing arm 22 rotate towards the direction of relatively close, and the first auxiliary swing arm 31 and the second auxiliary swing arm 32 rotate towards the direction of relatively close. The first rotating body 211 rotates along the first rotating groove 11 towards the direction of the first side surface 103, that is, rotates towards the direction away from the first rotating groove 11. The second rotating body 221 rotates along the second rotating groove 12 towards the direction of the second side surface 104, that is, rotates towards the direction away from the second rotating groove 12.

[0134] As shown in FIG. 12, when the rotating mechanism 100 is in the folded state, the first main swing arm 21 and the second main swing arm 22 are folded relative to each other, and the first auxiliary swing arm 31 and the second auxiliary swing arm 32 are folded relative to each other. The first main swing arm 21 and the second main swing arm 22 are arranged relative to each other along the X direction and are substantially parallel. The first auxiliary swing arm 31 and the second auxiliary swing arm 32 are arranged relative to each other along the X direction and are substantially parallel.

[0135] Please refer to FIG. 13, which is an enlarged structural schematic view of the first fixed frame 41 and the second fixed frame 42 in the rotating mechanism 100 shown in FIG. 7.

[0136] The first fixed frame 41 is provided with a first shaft hole 411 and a first sliding groove 412. The extension direction of the first shaft hole 411 is parallel to the Y direction. The first shaft hole 411 is used for mounting the third rotating shaft 214 to realize the rotating connection between the first fixed frame 41 and the first main swing arm 21. The first sliding groove 412 is arranged on the front surface (i.e. the surface facing the positive direction of the Z axis) of the first fixed frame 41. The extension direction of the first sliding groove 412 is parallel to the width direction of the first fixed frame 41. The first sliding groove 412 is used for mounting the first auxiliary swing arm 31 to realize the sliding connection between the first fixed frame 41 and the first auxiliary swing arm 31.

[0137] The first fixed frame 41 is further connected with a first guide sliding block 413. The first guide sliding block 413 is arranged in a spaced manner with the first shaft hole 411 and the first sliding groove 412. In this embodiment, the first guide sliding block 413 is arc-shaped. The first guide sliding block 413 is used for sliding and rotating connection with the first door panel 51.

[0138] The second fixed frame 42 is mirror-symmetrically structured with the first fixed frame 41. The second fixed frame 42 is provided with a second shaft hole 421, a second sliding groove 422 and a second guide sliding block 423. The extension direction of the second shaft hole 421 is parallel to the Y direction. The second shaft hole 421 is used for mounting the fourth rotating shaft 224 to realize the rotating connection between the second fixed frame 42 and the second main swing arm 22. The second sliding groove 422 is arranged on the front surface of the second fixed frame 42. The extension direction of the second sliding groove 422 is parallel to the width direction of the second fixed frame 42. The second sliding groove 422 is used for mounting the second auxiliary swing arm 32 to realize the sliding connection between the second fixed frame 42 and the second auxiliary swing arm 32. In this embodiment, the second guide sliding block 423 is arc-shaped. The second guide sliding block 423 is used for sliding and rotating connection with the second door panel 53.

[0139] Please refer to FIG. 14, which is a partial structural schematic view of the rotating mechanism 100 shown in FIG. 5.

[0140] The first fixed frame 41 is located at the X-axis negative direction side of the base 10. The first fixed frame 41 is fixedly connected with the first shell 210. The third rotating shaft 214 is installed in the first shaft hole 411 to realize the rotating connection between the first fixed frame 41 and the first main swing arm 21. The first sliding body 312 of the first auxiliary swing arm 31 is installed in the first sliding groove 412 and can slide along the extension direction of the first sliding groove 412. When the first shell 210 rotates relative to the base 10, the first fixed frame 41 is driven to rotate relative to the base 10, thereby driving the first main swing arm 21 and the first auxiliary swing arm 31 to rotate relative to the base 10. When the first main swing arm 21 rotates relative to the base 10, the first rotating body 211 slides and rotates along the first rotating groove 11, and the first shaft seat 213 rotates around the third rotating shaft 214, that is, the first main swing arm 21 rotates and slides along the first rotating groove 11 while also rotating around the third rotating shaft 214. When the first auxiliary swing arm 31 rotates relative to the base 10, the first auxiliary shaft seat 311 rotates around the first rotating shaft 13, and the first sliding body 312 slides along the first sliding groove 412.

[0141] The second fixed frame 42 is located at the X-axis negative direction of the base 10. The second fixed frame 42 is fixedly connected with the second shell 220. The fourth rotating shaft 224 is installed in the second shaft hole 421 to realize the rotating connection between the second fixed frame 42 and the second main swing arm 22. The second sliding body 322 of the second auxiliary swing arm 32 is installed in the second sliding groove 422 and can slide along the extension direction of the second sliding groove 422. When the second shell 220 rotates relative to the base 10, the second fixed frame 42 is driven to rotate relative to the base 10, thereby driving the second main swing arm 22 and the second auxiliary swing arm 32 to rotate relative to the base 10. When the second main swing arm 22 rotates relative to the base 10, the second rotating body 221 slides and rotates along the second rotating groove 12, and the second shaft seat 223 rotates around the fourth rotating shaft 224, that is, the second main swing arm 22 rotates and slides along the second rotating groove 12 while also rotating around the third rotating shaft 214. When the second auxiliary swing arm 32 rotates relative to the base 10, the second auxiliary shaft seat 321 rotates around the second rotating shaft 14, and the second sliding body 322 slides along the second sliding groove 422.

[0142] The rotating direction of the first fixed frame 41 is opposite to the rotating direction of the second fixed frame 42. For example, when the rotating mechanism 100 switches from the unfolded state to the folded state, the first shell 210 and the first fixed frame 41 rotate counterclockwise, and the second shell 220 and the second fixed frame 42 rotate clockwise. When the rotating mechanism 100 switches from the folded state to the unfolded state, the first shell 210 and the first fixed frame 41 rotate clockwise, and the second shell 220 and the second fixed frame 42 rotate counterclockwise.

[0143] In this embodiment, by arranging the first fixing frame 41 and the second fixing frame 42, and fixing the first fixing frame 41 to the first housing 210 and the second fixing frame 42 to the second housing 220, the stability of the folding electronic device 1000 in rotation can be improved.

[0144] Please refer to FIG. 15, which is a schematic diagram of the partial structure of the first door plate 51 and the second door plate 53 in the rotation mechanism 100 shown in FIG. 7.

[0145] The first door plate 51 is in a long strip-shaped plate structure. The first door plate 51 includes a first upper surface 511, a first lower surface 512, a first side surface 513, and a second side surface 514. The first upper surface 511 and the second upper surface 531 are oppositely arranged along the thickness direction of the first door plate 51. The first side surface 513 and the second side surface 514 are oppositely arranged along the width direction of the first door plate 51, and are both connected between the first upper surface 511 and the first lower surface 512.

[0146] The first door plate 51 is provided with a first mounting slot 515. The opening of the first mounting slot 515 is located on the first upper surface 511. The bottom wall of the first mounting slot 515 is provided with a first mounting hole 516. The first mounting hole 516 penetrates the bottom wall of the first mounting slot 515 and the first lower surface 512. In this embodiment, both the first mounting slot 515 and the first mounting hole 516 are multiple. The multiple first mounting slots 515 are arranged at intervals along the length direction (Y direction) of the first door plate 51, and the bottom wall of each first mounting slot 515 is provided with a first mounting hole 516. The first mounting slot 515 and the first mounting hole 516 are used for connecting with the first fixing frame 41.

[0147] The first door plate 51 is also provided with a guide slot 52. The extension direction of the guide slot 52 is parallel to the width direction of the first door plate 51. The guide slot 52 is used for sliding connection with the flexible support 70. The opening of the guide slot 52 is located on the first upper surface 511. The guide slot 52 includes a first end 521 and a second end 522. The first end 521 and the second end 522 are oppositely arranged along the extension direction of the guide slot 52. The first end 521 penetrates the first side surface 513 and forms a mounting opening on the first side surface 513. The second end 522 is arranged at intervals with the second side surface 514 and forms a stop wall 523 on the side of the guide slot 52 close to the second side surface 514. It can be understood that along the extension direction of the guide slot 52, the guide slot 52 penetrates the first side surface 513 but does not penetrate the second side surface 514.

[0148] The guide slot 52 is used for mounting the guide column 73 (as shown in FIG. 6), and the guide column 73 can slide along the guide slot 52. In this embodiment, by arranging a mounting opening at one end of the guide slot 52, the guide column 73 can be mounted into the guide slot 52 along the mounting opening, so that the assembly process of the rotation mechanism 100 can be simplified.

[0149] In this embodiment, the cross section of the guide groove 52 is "convex" shape along the extension direction perpendicular to the guide groove 52. The guide groove 52 includes a first sub-groove 524 and a second sub-groove 525. The first sub-groove 524 and the second sub-groove 525 are connected and communicated with each other along the thickness direction of the first door plate 51, the first sub-groove 524 is located on the side close to the first lower surface 512, the second sub-groove 525 penetrates the first upper surface 511, and the opening of the second sub-groove 525 is located on the first upper surface 511. Moreover, the size of the first sub-groove 524 along the Y direction is greater than the size of the second sub-groove 525 along the Y direction. That is, the width of the first sub-groove 524 is greater than the width of the second sub-groove 525.

[0150] In this embodiment, the guide groove 52 is directly formed during the injection molding of the first door plate 51. In other embodiments, the guide groove 52 can be formed by a cutting process after the injection molding of the first door plate 51.

[0151] The second door plate 53 includes a second upper surface 531, a second lower surface 532, a third side surface 533 and a fourth side surface 534. The second upper surface 531 and the second lower surface 532 are oppositely arranged along the thickness direction of the second door plate 53. The third side surface 533 and the fourth side surface 534 are oppositely arranged along the width direction of the second door plate 53, and are both connected between the second upper surface 531 and the second lower surface 532. The second door plate 53 is provided with a second mounting groove 535. The opening of the second mounting groove 535 is located on the second upper surface 531. The groove bottom wall of the second mounting groove 535 is provided with a second mounting hole 536. The second mounting hole 536 penetrates the groove bottom wall of the second mounting groove 535 and the second lower surface 532. In this embodiment, the second mounting groove 535 and the second mounting hole 536 are both multiple. The multiple second mounting grooves 535 are arranged at intervals along the length direction (Y direction) of the second door plate 53, and the groove bottom wall of each second mounting groove 535 is provided with a second mounting hole 536. The second mounting groove 535 and the second mounting hole 536 are used for connecting with the second fixing frame 42.

[0152] It should be noted that FIG. 15 only shows the structure of the first door plate 51 and the second door plate 53 in the negative direction of the Y axis, and the structure of the first door plate 51 and the second door plate 53 in the positive direction of the Y axis is the same as or similar to the structure in the negative direction of the Y axis, and the structure of the first door plate 51 in the negative direction of the Y axis can be adjusted appropriately according to the rotating structure 3 located in the negative direction of the Y axis.

[0153] Please refer to FIG. 16 and FIG. 17, FIG. 16 is a partial exploded structure schematic diagram of the rotating mechanism 100 shown in FIG. 7, and FIG. 17 is a partial exploded structure schematic diagram of the rotating mechanism 100 shown in FIG. 7.

[0154] The rotating mechanism 100 further comprises a first connecting member 61 and a second connecting member 62. The first connecting member 61 is connected between the first fixed frame 41 and the first door plate 51, and is rotatably and slidably connected with the first auxiliary swing arm 31. The top surface of the first connecting member 61 is provided with a first fixing portion 611. The first fixing portion 611 is used for fixedly connecting with the first door plate 51. The first connecting member 61 is further provided with a first guide sliding groove 612 and a third sliding groove 613. The first guide sliding groove 612 is arc-shaped, and the structure of the first guide sliding groove 612 is matched with the structure of the first guide sliding block 413. Here, "matched" means that the curved radius of the first guide sliding groove 612 is substantially the same as the curved radius of the first guide sliding block 413, and the first guide sliding block 413 can slide along the first guide sliding groove 612. The third sliding groove 613 is arranged in the Y direction and is spaced apart from the first guide sliding groove 612. The third sliding groove 613 is used for mounting the first shaft body 313, so as to realize the rotatable and slidable connection between the first auxiliary swing arm 31 and the first connecting member 61.

[0155] The second connecting member 62 is connected between the second fixed frame 42 and the second door plate 53, and is rotatably and slidably connected with the second auxiliary swing arm 32. The top surface of the second connecting member 62 is provided with a second fixing portion 621. The second fixing portion 621 is used for fixedly connecting with the second door plate 53. The second connecting member 62 is further provided with a second guide sliding groove 622 and a fourth sliding groove 623. The second guide sliding groove 622 is arc-shaped, and the second guide sliding groove 622 is used for mounting the second guide sliding block 423. The fourth sliding groove 623 is used for mounting the second shaft body 323, so as to realize the rotatable and slidable connection between the second auxiliary swing arm 32 and the second connecting member 62.

[0156] Please refer to Figs. 18-20 together. Fig. 18 is a partial structure schematic diagram of the rotating mechanism 100 shown in Fig. 5. Fig. 19 is a cross-sectional structure schematic diagram of the rotating mechanism 100 shown in Fig. 5. Fig. 20 is a cross-sectional structure schematic diagram of the rotating mechanism 100 shown in Fig. 5.

[0157] The first door plate 51 and the first connecting member 61 are installed on the X negative direction side of the base 10. The first lower surface 512 of the first door plate 51 faces the upper surface of the first fixed frame 41, and is rotatably and slidably connected with the first fixed frame 41. The first fixing portion 611 of the first connecting member 61 is installed in the first installation groove 515 through the first installation hole 516, and is fixedly connected with the first door plate 51. The first guide sliding block 413 of the first fixed frame 41 is installed in the first guide sliding groove 612, and the first guide sliding block 413 can slide along the first guide sliding groove 612. The first shaft body 313 of the first auxiliary swing arm 31 is installed in the third sliding groove 613, and the first shaft body 313 can slide along the third sliding groove 613, while the first auxiliary swing arm 31 can rotate around the first shaft body 313.

[0158] The second door plate 53 and the second connecting piece 62 are installed on the X-axis positive direction side of the base 10. The second lower surface 532 of the second door plate 53 faces the upper surface of the second fixed frame 42 and is rotationally and slidingly connected with the second fixed frame 42. The second fixed part 621 of the second connecting piece 62 is installed in the second installation slot 535 through the second installation hole 536 and is fixedly connected with the second door plate 53. The second guide sliding block 423 of the second fixed frame 42 is installed in the second guide sliding slot 622 and can slide along the second guide sliding slot 622. The second shaft body 323 of the second auxiliary swing arm 32 is installed in the fourth sliding slot 623 and can slide along the fourth sliding slot 623 while the second auxiliary swing arm 32 can rotate about the second shaft body 323.

[0159] As shown in FIGS. 19 and 20, when the rotating mechanism 100 is in the unfolded state, the first door plate 51 and the second door plate 53 are relatively unfolded. The first door plate 51 and the second door plate 53 are oppositely arranged with the flexible support 70, and the first door plate 51, the second door plate 53 and the base 10 collectively support the flexible support 70, which is used for supporting the display screen 300. The first door plate 51 and the second door plate 53 can increase the stability of the flexible support 70, thereby increasing the support stability of the display screen 300 to ensure good display of the display screen 300.

[0160] Please refer to FIGS. 21 and 22 together, FIG. 21 is a sectional structure schematic diagram of the rotating mechanism 100 in the folded state shown in FIG. 19, and FIG. 22 is a sectional structure schematic diagram of the rotating mechanism 100 in the folded state shown in FIG. 20.

[0161] When the rotating mechanism 100 is rotated from the unfolded state to the folded state, the first fixed frame 41 and the second fixed frame 42 are rotated towards the relatively close direction. That is, the first fixed frame 41 is rotated clockwise, and the second fixed frame 42 is rotated counterclockwise.

[0162] When the first fixed frame 41 is rotated clockwise, the first door plate 51 and the first connecting piece 61 are simultaneously rotated clockwise, and the first guide sliding block 413 is slid along the first guide sliding slot 612 towards the arc shape in the first guide sliding slot 612 (as shown in FIGS. 19 and 21). At the same time, the clockwise rotation of the first fixed frame 41 also drives the first auxiliary swing arm 31 to rotate clockwise, and the first sliding body 312 is slid along the first sliding slot 412, the first shaft body 313 is rotated about the axis, and the first shaft body 313 is slid along the third sliding slot 613 towards the direction close to the base 10 (as shown in FIGS. 20 and 22).

[0163] When the second fixed frame 42 rotates counterclockwise, the second door plate 53 and the second connecting piece 62 are driven to rotate counterclockwise at the same time, so that the second guide sliding block 423 slides along the second guide sliding groove 622 in an arc shape towards the inside of the second guide sliding groove 622 (as shown in FIGS. 19 and 21). At the same time, the counterclockwise rotation of the second fixed frame 42 also drives the second auxiliary swing arm 32 to rotate counterclockwise, and the second sliding body 322 slides along the second sliding groove 422, and the second shaft body 323 rotates around its axis, and at the same time, the second shaft body 323 slides along the fourth sliding groove 623 in an arc shape towards the direction close to the base 10 (as shown in FIGS. 20 and 22).

[0164] As shown in FIGS. 21 and 22, when the rotating mechanism 100 is in the folded state, the first fixed frame 41 and the second fixed frame 42 are relatively folded and arranged in parallel along the X direction. The first door plate 51 and the second door plate 53 are arranged opposite to each other along the X direction. And, towards the end away from the base 10, the first door plate 51 and the second door plate 53 are inclined towards each other. That is, the included angle between the first door plate 51 and the second door plate 53 is greater than 0 degrees.

[0165] In this embodiment, the first door plate 51 is driven to rotate by the rotation of the first fixed frame 41, and the second door plate 53 is driven to rotate by the rotation of the second fixed frame 42, so as to realize the folding and unfolding of the flexible support 70, and realize the folding and unfolding of the display screen 300. In this embodiment, the first connecting piece 61 is arranged between the first door plate 51 and the first fixed frame 41 to realize the arc sliding of the first door plate 51 relative to the first fixed frame 41, and the second connecting piece 62 is arranged between the second door plate 53 and the second fixed frame 42 to realize the arc sliding of the second door plate 53 relative to the second fixed frame 42, so that the included angle between the first door plate 51 and the second door plate 53 can be adjusted, which is conducive to forming a "water drop-shaped" avoiding space when the rotating mechanism 100 is in the folded state, so as to adapt to the bending of the flexible support 70, and realize the folding angle of the bendable part 350 of the display screen 300, so as to avoid the first door plate 51 and the second door plate 53 pressing the flexible support 70 when the rotating mechanism 100 is in the folded state, and then pressing the display screen 300. That is, when the rotating mechanism 100 is in the folded state, the included angle between the first fixed frame 41 and the second fixed frame 42 is different from the included angle between the first door plate 51 and the second door plate 53, and the included angle between the first door plate 51 and the second door plate 53 can be adjusted according to the bending angle of the flexible support 70 to adapt to the bending of the flexible support 70 and the display screen 300.

[0166] And, in the embodiment, the first connecting piece 61 is rotatably and slidably connected with the first auxiliary swing arm 31, so that when the first fixed frame 41 drives the first auxiliary swing arm 31 and the first connecting piece 61 to rotate, the first auxiliary swing arm 31 rotates and slides relative to the first connecting piece 61, thereby improving the rotation stability of the first connecting piece 61, and further improving the rotation stability of the first door panel 51. In the embodiment, the second connecting piece 62 is rotatably and slidably connected with the second auxiliary swing arm 32, so that when the second fixed frame 42 drives the second auxiliary swing arm 32 and the second connecting piece 62 to rotate, the second auxiliary swing arm 32 rotates and slides relative to the second connecting piece 62, thereby improving the rotation stability of the second connecting piece 62, and further improving the rotation stability of the second door panel 53.

[0167] Please refer to FIG. 23 and FIG. 24, FIG. 23 is a structural schematic diagram of the flexible support 70 in the rotating mechanism 100 shown in FIG. 6, and FIG. 24 is a partial structural schematic diagram of the flexible support 70 shown in FIG. 23.

[0168] The flexible support 70 comprises a body 71, a protective body 72 and a guide column 73. The body 71 is in a sheet structure. In the embodiment, the body 71 is a thin steel sheet. In other embodiments, the body 71 can also be a thin sheet of other metal materials, or the body 71 can also be made of high polymer materials or super elastic materials. Here, the material of the body 71 is not specifically limited, as long as the body 71 can be bent.

[0169] The body 71 comprises a first surface 711 and a second surface 712. The first surface 711 and the second surface 712 are oppositely arranged along the thickness direction of the flexible support 70. The body 71 further comprises a first section 701, a second section 702 and a bending section 703. The first section 701, the bending section 703 and the second section 702 are sequentially fixedly connected along the width direction (X direction) of the body 71. It should be noted that, in the embodiment, in order to facilitate description, the flexible support 70 is divided into the first section 701, the bending section 703 and the second section 702, which does not limit the structure of the flexible support 70. Actually, the body 71 is an integrally formed structure, and the first section 701 and the second section 702 are formed by extending outward from both ends of the bending section 703. The dashed lines in FIG. 23 are only used to indicate the areas where the first section 701, the bending section 703 and the second section 702 are located, and do not represent the actual sizes of the first section 701, the bending section 703 and the second section 702, nor the proportion of the sizes of the first section 701, the bending section 703 and the second section 702 in the flexible support 70.

[0170] In the embodiment, the protective body 72 is of a film material. In other embodiments, the protective body 72 can also be a plastic sheet or a sheet of other flexible materials. The protective body 72 covers the first surface 711 of the body 71 and is fixedly connected with the body 71. The protective body 72 protects the body 71.

[0171] In the embodiment, the guide post 73 is a pin. The structure of the guide post 73 is matched with the structure of the guide slot 52 of the first door plate 51. The guide post 73 comprises a connecting segment 731 and a limiting segment 732 connected with each other. The size of the limiting segment 732 is greater than the size of the connecting segment 731 along the length direction (Y direction) of the flexible support 70. In the embodiment, the connecting segment 731 and the limiting segment 732 are both cylindrical bodies, and the diameter of the limiting segment 732 is greater than the diameter of the connecting segment 731. The guide post 73 is fixed to the second surface 712 of the body 71 and located in the first segment 701 of the body 71. The connecting segment 731 is fixedly connected with the second surface 712, and the limiting segment 732 is connected to the end of the connecting segment 731 away from the body 71.

[0172] In the embodiment, the guide post 73 is a pin. The structure of the guide post 73 is matched with the structure of the guide slot 52 of the first door plate 51. The guide post 73 comprises a connecting segment 731 and a limiting segment 732 connected with each other. The size of the limiting segment 732 is greater than the size of the connecting segment 731 along the length direction (Y direction) of the flexible support 70. In the embodiment, the connecting segment 731 and the limiting segment 732 are both cylindrical bodies, and the diameter of the limiting segment 732 is greater than the diameter of the connecting segment 731. The guide post 73 is fixed to the second surface 712 of the body 71 and located in the first segment 701 of the body 71. The connecting segment 731 is fixedly connected with the second surface 712, and the limiting segment 732 is connected to the end of the connecting segment 731 away from the body 71.

[0173] In the embodiment, the guide post 73 is fixed to the second surface 712 of the body 71 by an adhesive. In other embodiments, the guide post 73 can be fixed to the body 71 by welding, clamping or other means. Alternatively, the guide post 73 and the body 71 can be formed integrally.

[0174] Please refer to FIG. 25, which is a sectional structure diagram of the rotating mechanism 100 shown in FIG. 5.

[0175] The flexible support 70 is arranged on the positive direction of the Z axis of the base 10 and connected with the first door plate 51 and the second door plate 53. The first segment 701 is arranged in the Z direction and stacked with the first door plate 51, and the guide post 73 is installed in the guide slot 52. The limiting segment 732 of the guide post 73 is located in the first sub-slot 524 of the guide slot 52, and the connecting segment 731 of the guide post 73 is located in the second sub-slot 525 of the guide slot 52. The guide post 73 can slide along the guide slot 52, so as to realize the sliding connection between the first segment 701 and the first door plate 51. The second segment 702 is arranged in the Z direction and stacked with the second door plate 53 and fixedly connected with the second door plate 53. The curved segment 703 is arranged opposite to the base 10 and can move along the Z direction relative to the base 10.

[0176] In the embodiment, the rotating mechanism 100 further comprises an adhesive 74. The adhesive 74 can be glue dispensing, back glue or other glue. The adhesive 74 is adhered between the second section 702 and the second door plate 53 to achieve the fixed connection of the second section 702 and the second door plate 53. In the embodiment, the fixed connection of the flexible support 70 and the second door plate 53 is achieved by the adhesive 74, which can simplify the structure and reduce the cost. In other embodiments, the second section 702 can be fixedly connected with the second door plate 53 by welding, bolt connection or other ways. The connection between the flexible support 70 and the second door plate 53 is not limited here, as long as the fixed connection of the second section 702 and the second door plate 53 can be achieved.

[0177] When the rotating mechanism 100 is in the unfolded state, the first rotating part 1 and the second rotating part 2 are relatively unfolded. That is, the first fixed frame 41 and the second fixed frame 42 are relatively unfolded, the first door plate 51 and the second door plate 53 are relatively unfolded, the first main swing arm 21 and the second main swing arm 22 are relatively unfolded, and the first auxiliary swing arm 31 and the second auxiliary swing arm 32 are relatively unfolded. The flexible support 70 is flat. The guide column 73 is located in the guide groove 52 and is located near one side of the second end 522. The stop wall 523 plays a stopping role on the guide column 73, which can prevent the guide column 73 from coming out of the guide groove 52, and also can prevent the rotating mechanism 100 from over-expanding. That is, when the first rotating part 1 continues to rotate in the unfolding direction when the rotating mechanism 100 is in the unfolded state, the stop wall 523 plays a stopping role on the guide column 73, which can prevent the flexible support 70 from continuing to unfold, thereby preventing the first rotating part 1 from continuing to rotate in the unfolding direction, and further preventing the rotating mechanism 100 from over-expanding.

[0178] The first upper surface 511 of the first door plate 51, the second upper surface 531 of the second door plate 53, the top surface of the first main swing arm 21 and the top surface of the second main swing arm 22 are substantially located in the same plane and jointly support the flexible support 70. The surface of the flexible support 70 is substantially planar. The display screen 300 is arranged on the side of the flexible support 70 away from the base 10. The flexible support 70 is used to support the display screen 300 to ensure good display of the display screen 300. In the embodiment, when the foldable electronic device 1000 is in the unfolded state, the surface of the flexible support 70 is substantially planar, thereby improving the flatness of the display screen 300 arranged on the surface of the flexible support 70, improving the support effect on the display screen 300 and the reliability of the display screen 300.

[0179] Please refer to FIG. 26, which is a cross-sectional structure schematic diagram of the rotating mechanism 100 in the folded state shown in FIG. 25.

[0180] When the rotating mechanism 100 is switched from the unfolded state to the folded state, the first fixed frame 41 rotates clockwise to drive the first door plate 51 to rotate clockwise, thereby driving the first section 701 of the flexible support 70 to rotate clockwise. The second fixed frame 42 rotates counterclockwise to drive the second door plate 53 to rotate counterclockwise, thereby driving the second section 702 of the flexible support 70 to rotate counterclockwise. That is, the first section 701 and the second section 702 rotate towards each other. The first section 701 and the second section 702 jointly drive the curved section 703 to bend towards the base 10. When the curved section 703 bends towards the inside of the base 10, an action force towards the base 10 is applied to the first section 701 and the second section 702, thereby causing the guide column 73 of the flexible support 70 to slide along the guide slot 52 towards the first end 521, so as to move the first section 701 along the first door plate 51 towards the base 10.

[0181] When the rotating mechanism 100 is in the folded state, the flexible support 70 is bent to form an avoiding space. The bendable part 350 of the display screen 300 is bent and located in the avoiding space. Moreover, the bending radius of the bendable part 350 is substantially the same as the bending radius of the curved section 703. In this embodiment, the avoiding space is substantially in the shape of a "water droplet", and at this time, the rotating mechanism 100 can avoid the R angle formed when the bendable part 350 is bent.

[0182] When the rotating mechanism 100 is switched from the folded state to the unfolded state, the first fixed frame 41 rotates counterclockwise to drive the first door plate 51 to rotate counterclockwise, thereby driving the first section 701 of the flexible support 70 to rotate counterclockwise. The second fixed frame 42 rotates clockwise to drive the second door plate 53 to rotate clockwise, thereby driving the second section 702 of the flexible support 70 to rotate clockwise. That is, the first section 701 and the second section 702 rotate away from each other. The first section 701 and the second section 702 jointly drive the curved section 703 to flatten. During the flattening of the curved section 703, an action force towards the base 10 is applied to the first section 701, thereby causing the guide column 73 fixedly connected to the first section 701 to slide along the guide slot 52 from the first end 521 towards the second end 522, so as to move the first section 701 along the first door plate 51 away from the base 10. When the rotating mechanism 100 is in the unfolded state, the flexible support 70 is flattened and can support the display screen 300.

[0183] In the embodiment, the flexible support 70 is arranged to form a water droplet-shaped avoiding space when the rotating mechanism 100 is in the folded state, which can be used to avoid the bendable part 350 of the display screen 300, so that the bendable part 350 will not be bent at a large angle, and the display screen 300 will not be damaged, which helps to prolong the service life of the display screen 300.

[0184] In the embodiment, one end of the flexible support 70 is slidably connected to the first door plate 51, so that when the rotating mechanism 100 is rotated to the folded state, the first section 701 of the flexible support 70 can move towards the bending section 703, thereby reducing the bending curvature of the bending section 703, i.e., making the bending section 703 more gentle. In this way, when the foldable electronic device 1000 is in the folded state, the bending curvature of the bendable part 350 of the display screen 300 is reduced, thereby reducing the creases of the display screen 300, improving the display effect of the display screen 300, and prolonging the service life of the display screen 300.

[0185] Meanwhile, in the embodiment, the guiding column 73 is arranged on the flexible support 70, the guiding groove 52 is arranged on the first door plate 51, and the guiding column 73 slides along the guiding groove 52 to drive the flexible support 70 to slide relative to the first door plate 51, thereby constraining the movement track of the flexible support 70, so that the flexible support 70 can slide relative to the first door plate 51 along the extension direction of the guiding groove 52, i.e., the flexible support 70 can move along the predetermined movement track, thereby reducing the bouncing and abnormal sound of the flexible support 70 during movement, and improving the user experience.

[0186] In addition, the rotating mechanism 100 provided in the embodiment can realize the sliding connection between the flexible support 70 and the first door plate 51 by arranging the guiding groove 52 on the first door plate 51 and the guiding column 73 on the flexible support 70, which is simple in structure, has fewer parts, is conducive to simplifying the assembly process and reducing production costs. In addition, the movement relationship of the flexible support 70 is simple and not easy to damage, which can prolong the service life of the rotating mechanism 100.

[0187] In addition, in the embodiment, the guiding groove 52 is arranged in a "convex" shape, and the size of the second sub-groove 525 is smaller than that of the first sub-groove 524, so that when the guiding column 73 is installed in the guiding groove 52, the limiting section 732 of the guiding column 73 is limited in the first sub-groove 524 of the guiding groove 52, i.e., the guiding groove 52 can limit the guiding column 73 in the thickness direction of the first door plate 51, thereby preventing the guiding column 73 from being pulled out of the guiding groove 52, and improving the connection stability between the flexible support 70 and the first door plate 51.

[0188] Please refer to Fig. 27, which is a partially exploded structural schematic diagram of the rotating mechanism 100 shown in Fig. 5.

[0189] The rotating mechanism 100 further comprises a floating plate 90 and a bearing block 80. The floating plate 90 is in a long strip structure. The bearing block 80 is used to bear the floating plate 90. The bearing block 80 can be one or more. The more means more than two. When the bearing block 80 is more than one, the bearing blocks 80 are arranged along the Y direction at intervals. The bearing blocks 80 are all used to bear the floating plate 90. The structure of each bearing block 80 can be the same or similar.

[0190] Hereinafter, one of the bearing blocks 80 in the negative direction of the Y axis is taken as an example for description.

[0191] The top surface of the bearing block 80 is provided with a groove 85. The groove 85 penetrates the bearing block 80 along the Y direction, and the groove 85 is used to bear the floating plate 90. One side surface of the bearing block 80 along the X direction is provided with a first abutting protrusion 81 and a second abutting protrusion 82. The first abutting protrusion 81 and the second abutting protrusion 82 are arranged along the Z direction at intervals, and the first abutting protrusion 81 is located on the positive direction of the Z axis of the second abutting protrusion 82. In this embodiment, the first abutting protrusion 81 is two. The two first abutting protrusions 81 are arranged along the Y direction at intervals. The second abutting protrusion 82 is one. The second abutting protrusion 82 is arranged along the Z direction at intervals with the first abutting protrusion 81. That is, the projection of the second abutting protrusion 82 along the Z direction is completely dislocated with the first abutting protrusion 81, and does not coincide. The other side surface of the bearing block 80 along the X direction is provided with a third abutting protrusion 83 and a fourth abutting protrusion 84. The third abutting protrusion 83 and the fourth abutting protrusion 84 are arranged along the Z direction at intervals.

[0192] Please refer to Fig. 28, which is a partially structural schematic diagram of the rotating mechanism 100 shown in Fig. 5.

[0193] The bearing block 80 and the floating plate 90 are both mounted on the base 10. The bearing block 80 is located between the first sub-swing arm 31 and the second sub-swing arm 32. The first bearing protrusion 81 and the second bearing protrusion 82 are towards the first sub-swing arm 31. The first bearing platform 314 and the second bearing platform 315 of the first sub-swing arm 31 are both located between the first bearing protrusion 81 and the second bearing protrusion 82. The first bearing platform 314 is oppositely arranged with the first bearing protrusion 81 along the Z direction, and the first bearing platform 314 is located on the negative direction side of the Z axis of the first bearing protrusion 81. The second bearing platform 315 is oppositely arranged with the second bearing protrusion 82 along the Z direction, and the second bearing platform 315 is located on the positive direction side of the Z axis of the second bearing protrusion 82. The third bearing platform 324 and the fourth bearing platform 325 of the second sub-swing arm 32 are both located between the third bearing protrusion 83 and the fourth bearing protrusion 84. The third bearing platform 324 is oppositely arranged with the third bearing protrusion 83 along the Z direction, and the third bearing platform 324 is located on the negative direction side of the Z axis of the third bearing protrusion 83. The fourth bearing platform 325 is oppositely arranged with the fourth bearing protrusion 84 along the Z direction, and the fourth bearing platform 325 is located on the positive direction side of the Z axis of the fourth bearing protrusion 84.

[0194] The groove 85 of the bearing block 80 is towards the positive direction side of the Z axis. The floating plate 90 is mounted on the avoiding groove 105 of the base 10 and located in the groove 85 of the bearing block 80. The floating plate 90 can be fixedly connected with the bearing block 80, or directly carried on the bearing block 80 without being fixedly connected with the bearing block 80.

[0195] Please refer to FIG. 28 and FIG. 29 together. FIG. 29 is a partial cross-sectional structure schematic diagram of the rotating mechanism 100 shown in FIG. 5.

[0196] When the rotating mechanism 100 is in the unfolded state, the first fixed frame 41 and the second fixed frame 42 are relatively unfolded, the first door plate 51 and the second door plate 53 are relatively unfolded, the first sub-swing arm 31 and the second sub-swing arm 32 are relatively unfolded, and the flexible support 70 is flattened. The first bearing platform 314 of the first sub-swing arm 31 bears the first bearing protrusion 81 of the bearing block 80, and the third bearing platform 324 of the second sub-swing arm 32 bears the third bearing protrusion 83 of the bearing block 80. That is, the first sub-swing arm 31 and the second sub-swing arm 32 jointly bear the bearing block 80, thereby supporting the floating plate 90. The floating plate 90 is oppositely arranged with the flexible support 70 and is used to support the flexible support 70.

[0197] In the embodiment, the floating plate 90 can support the flexible support 70 when the rotating mechanism 100 is in the unfolded state, so that the pressing false position sense of the display screen 300 can be reduced, and the user experience can be improved. It should be explained that the rigidity of the floating plate 90 is large, and the floating plate 90 is not easy to deform. When the foldable electronic device 1000 is unfolded, the display screen 300 is pressed at the position corresponding to the base 10 above the display screen 300, the floating plate 90 supports the display screen 300 of the flexible support 70, so that the display screen 300 is not easy to deform towards the base 10, thereby the pressing false position sense of the display screen 300 can be reduced. In addition, the floating plate 90 is arranged in the avoiding groove 105 of the base 10, so that the size of the rotating mechanism 100 in the Z direction can be reduced, that is, the thickness of the rotating mechanism 100 can be reduced.

[0198] In addition, in the embodiment, the floating plate 90 is arranged on the bearing block 80, and the bearing block 80 is driven to move in the Z direction by the first rotating part 1 and the second rotating part 2, so that the floating plate 90 is driven to move in the Z direction, thereby the stability of the movement of the floating plate 90 can be improved.

[0199] In addition, in the embodiment, the floating plate 90 is arranged on the bearing block 80, and the bearing block 80 is driven to move in the Z direction by the first rotating part 1 and the second rotating part 2, so that the floating plate 90 is driven to move in the Z direction, thereby the stability of the movement of the floating plate 90 can be improved.

[0200] In the embodiment, the first abutting table 314 is arranged on the first auxiliary swing arm 31, the third abutting table 324 is arranged on the second auxiliary swing arm 32, and the first abutting table 314 and the third abutting table 324 jointly abut the bearing block 80 when the rotating mechanism 100 is in the unfolded state, thereby supporting the floating plate 90, the stability of the bearing block 80 and the floating plate 90 can be improved, and the floating plate 90 is prevented from moving towards the base 10 when being pressed, thereby the supporting effect of the floating plate 90 can be enhanced, and the pressing false position sense of the display screen 300 can be further reduced. In addition, in the embodiment, the first auxiliary swing arm 31 and the second auxiliary swing arm 32 jointly support the bearing block 80 on the opposite sides in the X direction, so that the stress of the bearing block 80 is balanced, thereby the supporting effect of the bearing block 80 and the floating plate 90 can be further improved.

[0201] Please refer to FIG. 30 and FIG. 31, FIG. 30 is a sectional structure schematic diagram of the rotating mechanism 100 shown in FIG. 5, and FIG. 31 is a sectional structure schematic diagram of the rotating mechanism 100 shown in FIG. 30 in the folded state.

[0202] During the rotation of the rotation mechanism 100 from the unfolded state to the folded state, the first auxiliary swing arm 31 rotates clockwise, and the second auxiliary swing arm 32 rotates counterclockwise. The first auxiliary swing arm 31 drives the second abutting table 315 to rotate towards the second abutting protrusion 82, and abuts against the second abutting protrusion 82; the second auxiliary swing arm 32 drives the fourth abutting table 325 to rotate towards the fourth abutting protrusion 84, and abuts against the fourth abutting protrusion 84, so that the second abutting protrusion 82 and the fourth abutting protrusion 84 move towards the negative direction of the Z axis, that is, move away from the flexible support 70, thereby driving the bearing block 80 to move towards the negative direction of the Z axis. When the bearing block 80 moves towards the negative direction of the Z axis, the floating plate 90 is driven to move towards the negative direction of the Z axis, thereby providing a bending space for the flexible support 70, and thus avoiding the floating plate 90 pressing the flexible support 70 and the display screen 300 during the rotation of the rotation mechanism 100 to the folded state, thereby prolonging the service life of the flexible support 70 and the display screen 300.

[0203] When the rotation mechanism 100 is in the folded state, the first auxiliary swing arm 31 and the second auxiliary swing arm 32 are relatively folded, the second abutting table 315 is arranged opposite to the second abutting protrusion 82 and abuts against each other, and the fourth abutting table 325 is arranged opposite to the fourth abutting protrusion 84 and abuts against each other. The first auxiliary swing arm 31 and the second auxiliary swing arm 32 limit the movement of the bearing block 80 in the Z direction, that is, limit the movement of the bearing block 80 and the floating plate 90 towards the positive direction of the Z axis, that is, limit the movement of the bearing block 80 and the floating plate 90 towards the flexible support 70 and the display screen 300, thereby further avoiding the floating plate 90 pressing the flexible support 70 and the display screen 300, and avoiding damage to the flexible support 70 and the display screen 300.

[0204] Please refer to FIG. 29 and FIG. 32, FIG. 32 is a structural schematic diagram of the rotation mechanism 100 in the folded state shown in FIG. 29.

[0205] When the rotation mechanism 100 is switched from the folded state to the unfolded state, the first auxiliary swing arm 31 rotates counterclockwise, and the second auxiliary swing arm 32 rotates clockwise. The first auxiliary swing arm 31 drives the first abutting table 314 to rotate towards the first abutting protrusion 81, and abuts against the first abutting protrusion 81; the second auxiliary swing arm 32 drives the third abutting table 324 to rotate towards the third abutting protrusion 83, and abuts against the third abutting protrusion 83, so that the first abutting protrusion 81 and the third abutting protrusion 83 move towards the positive direction of the Z axis, thereby driving the bearing block 80 to move towards the positive direction of the Z axis. When the bearing block 80 moves towards the positive direction of the Z axis, the floating plate 90 is driven to move towards the positive direction of the Z axis, that is, the floating plate 90 is driven to move towards the flexible support 70, thereby supporting the flexible support 70 and the display screen 300.

[0206] The above merely describes some embodiments and implementations of the present application, and the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A rotating mechanism, characterized in that, The utility model relates to a rotating mechanism of flexible support, including: Base, flexible support, first rotating part and second rotating part; The surface of first rotating part is equipped with guide groove, the extension direction of guide groove is parallel with the width direction of first rotating part, and first rotating part and second rotating part are equipped on the opposite sides of base in width direction respectively and are rotatably connected with base; The flexible support includes a body and a guide column, the body includes a first segment, a second segment, and a curved segment, the first segment, the curved segment, and the second segment are connected in sequence along the width direction of the flexible support, and the guide column is fixedly connected with the first segment; The flexible support is stacked on the same side of the first rotating part, the base, and the second rotating part, the first segment is stacked with the first rotating part, the guide column is installed in the guide groove and can slide along the guide groove, the second segment is stacked with the second rotating part and is fixedly connected with the second rotating part, and the curved segment is oppositely arranged with the base; When the rotating mechanism is in an unfolded state, the first rotating part and the second rotating part are relatively unfolded, and the flexible support is flattened; When the rotating mechanism is in a folded state, the first rotating part and the second rotating part are relatively folded, the flexible support is located between the first rotating part and the second rotating part, and the curved segment is bent towards the base.

2. The swivel mechanism of claim 1, wherein When the first rotating part and the second rotating part rotate towards the relatively close direction, the first rotating part can drive the first segment to rotate relative to the base, and the guide column slides along the guide groove, the second rotating part can drive the second segment to rotate relative to the base, the first segment and the second segment jointly drive the curved segment to bend towards the base, and an avoiding space is formed between the first rotating part and the second rotating part.

3. The swivel mechanism of claim 2, wherein, The first rotating part includes a first fixed frame, a first door plate, and a first main swing arm, one end of the first main swing arm is rotatably and slidably connected with the base, the other end is rotatably connected with the first fixed frame, and the first door plate is rotatably and slidably connected with the first fixed frame. The second rotating part includes a second fixed frame, a second door plate, and a second main swing arm, one end of the second main swing arm is rotatably and slidably connected with the base, the other end is rotatably connected with the second fixed frame, and the second door plate is rotatably and slidably connected with the second fixed frame. The guide groove is recessed on the surface of the first door plate, and the extension direction of the guide groove is parallel to the width direction of the first door plate; along the thickness direction of the first door plate, the first segment is stacked with the first door plate; along the thickness direction of the second door plate, the second segment is stacked with the second door plate and is fixedly connected with each other.

4. The swivel mechanism of claim 3, wherein The first door plate includes a first side surface and a second side surface, the first side surface and the second side surface are oppositely arranged along the width direction of the first door plate, and the first side surface faces the base; the guide groove is provided with a mounting port, the mounting port is located at one end of the length direction of the guide groove and penetrates through the first side surface.

5. The swivel mechanism of claim 4, wherein, The guide slot comprises a stop wall, which is arranged opposite to the mounting opening along the extension direction of the guide slot; when the rotating mechanism is in the unfolded state, the guide column abuts against the stop wall.

6. The swivel mechanism of claim 5, wherein, The first door panel further comprises a first upper surface and a first lower surface, which are arranged opposite along the thickness direction of the first door panel and are connected between the first side surface and the second side surface; The guide slot comprises a first sub-slot and a second sub-slot, which are connected and communicated along the thickness direction of the first door panel, and the second sub-slot penetrates through the first upper surface, and the first sub-slot is close to the first lower surface; along the length direction parallel to the first door panel, the size of the first sub-slot is larger than that of the second sub-slot; The guide column comprises a connecting segment and a limiting segment, which are connected, and one end of the connecting segment away from the limiting segment is fixedly connected with the body; along the length direction parallel to the flexible support, the size of the limiting segment is larger than that of the connecting segment; the limiting segment is mounted in the first sub-slot, and the connecting segment is mounted in the second sub-slot.

7. A swivel mechanism according to any one of claims 1 to 6, characterized in that The rotating mechanism further comprises a floating plate; the floating plate is mounted on the base and is located between the base and the flexible support; When the rotating mechanism is in the unfolded state, the first rotating part and the first rotating part abut against the floating plate along the thickness direction of the base; when the rotating mechanism is rotated from the unfolded state to the folded state, the first rotating part and the second rotating part release the floating plate and drive the floating plate to move towards the base.

8. The swivel mechanism of claim 7, wherein, The rotating mechanism comprises a bearing block, which is mounted on the base, and the floating plate is mounted on one side of the bearing block away from the base; When the rotating mechanism is in the unfolded state, the first rotating part and the first rotating part abut against the bearing block to abut against the floating plate; when the rotating mechanism is rotated from the unfolded state to the folded state, the first rotating part and the second rotating part release the bearing block and drive the bearing block to move towards the base, and the bearing block drives the floating plate to move towards the base.

9. The swivel mechanism of claim 8, wherein, One side of the bearing block towards the first rotating part is provided with a first abutting protrusion and a second abutting protrusion, which are arranged spaced apart along the thickness direction of the base, and the first abutting protrusion is located on one side of the second abutting protrusion close to the floating plate; The first rotating part comprises a first auxiliary swing arm, one end of which is rotationally connected with the base, and the other end is slidingly connected with the first fixed frame of the first rotating part; When the rotating mechanism is in the unfolded state, the first auxiliary swing arm abuts against the first abutting protrusion; when the rotating mechanism is in the folded state, the first auxiliary swing arm releases the first abutting protrusion and abuts against the second abutting protrusion.

10. The swivel mechanism of claim 3, wherein, The first rotating member further comprises a first connecting member provided with a first guide sliding groove, which is arc-shaped; the first fixed frame is provided with a first guide sliding block, which is arc-shaped; The first connecting member is fixedly connected with the first door plate, the first guide sliding block is installed in the first guide sliding groove, and the first guide sliding block can slide along the first guide sliding groove in an arc shape.

11. The swivel mechanism of claim 10, wherein, The first connecting member is provided with a second guide sliding groove, which is arranged in a spaced manner with the first guide sliding groove; The first rotating member further comprises a first auxiliary swing arm provided with a first shaft body, and the extension direction of the first shaft body is parallel to the length direction of the rotating mechanism; One end of the first auxiliary swing arm is rotationally connected with the base, and the other end is slidingly connected with the first fixed frame; the first shaft body is installed in the second guide sliding groove and can slide along the second guide sliding groove.

12. A foldable electronic device, characterized by The foldable electronic device comprises a first shell, a second shell, a display screen and a rotating mechanism as claimed in any one of claims 1 to 11, the rotating mechanism is connected between the first shell and the second shell; the display screen comprises a first display part, a second display part and a bendable part, the bendable part is connected between the first display part and the second display part, the first display part is installed in the first shell, the second display part is installed in the second shell, and the bendable part is arranged in a spaced manner with the flexible support; When the foldable electronic device is in a folded state, the first shell and the second shell are folded relative to each other, the bendable part is bent towards the base, and at least part of the bendable part is located in the avoiding space of the rotating mechanism.

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