CN217502265U

CN217502265U - Rotating mechanism and electronic equipment

Info

Publication number: CN217502265U
Application number: CN202220646873.XU
Authority: CN
Inventors: 苏帅; 陈瑞豪; 董长富; 董绍洪
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2022-03-23
Filing date: 2022-03-23
Publication date: 2022-09-27
Anticipated expiration: 2032-03-23

Abstract

The application provides a rotating mechanism and an electronic device. The rotating mechanism comprises a base, a first synchronous swing arm, a second synchronous swing arm, a first fixing frame, a second fixing frame, a first pressing plate and a second pressing plate; the first synchronous swing arm and the second synchronous swing arm are respectively positioned at two opposite sides of the base, the first synchronous swing arm is rotatably connected with the base, the first synchronous swing arm is slidably connected with the first fixing frame, the second synchronous swing arm is rotatably connected with the base, and the second synchronous swing arm is slidably connected with the second fixing frame; the first pressing plate is rotatably connected with the first fixing frame, the first pressing plate is rotatably and slidably connected with the first synchronous swing arm, the second pressing plate is rotatably connected with the second fixing frame, and the second pressing plate is rotatably and slidably connected with the second synchronous swing arm. The rotating mechanism of the technical scheme of the application has excellent rotating effect and is beneficial to improving the stress caused to the screen in the rotating process.

Description

Rotating mechanism and electronic equipment

Technical Field

The application relates to the technical field of folding, in particular to a rotating mechanism and an electronic device.

Background

As the flexible folding screen technology becomes mature, the application of the flexible folding terminal product becomes more and more extensive. Folding terminal products (such as folding mobile phones, folding tablets, folding computers and other electronic devices) need to meet higher appearance and better experience, so that the folding terminal products can be accepted by consumers. At present, the rotating effect of a rotating mechanism in the folding process of a folding form terminal product is poor, and the screen is easily affected in a bending process.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a slewing mechanism and electronic equipment, and slewing mechanism's rotation effect is excellent, is favorable to improving the stress that causes the screen among the rotation process.

In a first aspect, the present application provides a rotating mechanism, which includes a base, a first synchronous swing arm, a second synchronous swing arm, a first fixing frame, a second fixing frame, a first pressing plate, and a second pressing plate;

the first synchronous swing arm and the second synchronous swing arm are respectively positioned at two opposite sides of the base, the first synchronous swing arm is rotatably connected with the base, the first synchronous swing arm is slidably connected with the first fixing frame, the second synchronous swing arm is rotatably connected with the base, and the second synchronous swing arm is slidably connected with the second fixing frame;

the first pressure plate is rotationally connected with the first fixing frame, the first pressure plate is rotationally and slidably connected with the first synchronous swing arm, the second pressure plate is rotationally connected with the second fixing frame, and the second pressure plate is rotationally and slidably connected with the second synchronous swing arm;

the first fixing frame can rotate relative to the base, and drives the first synchronous swing arm to rotate relative to the base and slide relative to the first fixing frame, so that the first synchronous swing arm and the first pressing plate rotate and slide relatively, the second fixing frame can rotate relative to the base, and drives the second synchronous swing arm to rotate relative to the base and slide relative to the second fixing frame, so that the second synchronous swing arm and the second pressing plate rotate and slide relatively, and the rotation directions of the first fixing frame and the second fixing frame are opposite. For example, when the first fixing frame rotates clockwise, the second fixing frame rotates anticlockwise. When the first fixing frame rotates anticlockwise, the second fixing frame rotates clockwise.

Based on the above description, it should be understood that, since the first synchronous swing arm is rotatably connected to the base and slidably connected to the first fixing frame, the first synchronous swing arm can be driven to rotate relative to the base and slide relative to the first fixing frame when the first fixing frame rotates relative to the base. And because the first synchronous swing arm and the first pressure plate rotate and are in sliding connection, the first pressure plate can be driven by the first synchronous swing arm to rotate relative to the base through the sliding of the first synchronous swing arm relative to the first fixing frame.

Therefore, the first synchronous swing arm can be used as an active driving structure of the first pressing plate, and the first pressing plate can move along with the first fixing frame when the first synchronous swing arm slides relative to the first fixing frame. In other words, first synchronous swing arm can directly drive first clamp plate motion to make first clamp plate can have sufficient thrust and carry out stable, smooth motion, reduce to the minimum with the first clamp plate motion in-process appearance jam, the dead possibility of card, the good reliability.

And the first synchronous swing arm is rotatably connected with the base and is in sliding connection with the first fixing frame, so that a connecting rod sliding block structure is formed. From this, can realize being connected between first mount and the base through connecting rod slider structure, under this framework, slewing mechanism has less part quantity, and cooperation relation and cooperation position are simple, and the easy preparation of component and equipment are favorable to realizing the volume production. And the first fixing frame can have better reliability relative to the rotation motion of the base, so that the integral rotation effect of the rotating mechanism is good, and the improvement of the screen stress borne by the flexible display screen in the rotation process is facilitated.

In a possible embodiment, the first fixed frame has a first sliding groove and a first guiding space, the first guiding space is located at the periphery of the first sliding groove and is communicated with the first sliding groove, the first synchronization swing arm includes a first main body and a first flange, the first main body includes a first sliding end, the first flange is connected to the first sliding end, two ends of the first flange along the axial direction are protruded relative to the first sliding end, the first flange is slidably connected to the first sliding groove and the first guiding space, and the first sliding end is slidably connected to the first sliding groove;

the second fixing frame is provided with a second sliding groove and a second guiding space, the second guiding space is located on the periphery of the second sliding groove and communicated with the second sliding groove, the second synchronous swing arm comprises a second main body and a second flange, the second main body comprises a second sliding end, the second flange is connected to the second sliding end, two ends of the second flange in the axial direction are opposite to the second sliding end and protrude, the second flange is connected to the second sliding groove and the second guiding space in a sliding mode, and the second sliding end is connected to the second sliding groove in a sliding mode.

Wherein the axial direction is the direction in which the central axis of the first flange is located. It should be noted that, since both ends of the first flange in the axial direction are protruded relative to the first sliding end, the size of the first flange is larger than that of the first sliding end in the axial direction. Therefore, one part of the first flange is positioned in the first sliding groove, and the other part of the first flange is positioned in the first guide space, so that the first flange can slide in the first guide space and the first sliding groove. Therefore, the first flange is in sliding fit with the first guide space, relative sliding motion of the first synchronous swing arm and the first fixing frame can be achieved more easily, and control precision is higher.

Through the sliding fit of the first synchronous swing arm and the first fixing frame, the rotary motion of the first fixing frame relative to the base can be converted into the swing motion of the first synchronous swing arm relative to the base, so that the first synchronous swing arm can be used as an auxiliary swing arm of the first fixing frame and matched with the first main swing arm to drive the first fixing frame, and the reliability is good.

In a possible embodiment, the first synchronous swing arm further includes a first slide rail, the first main body further includes a first rotating end, the first slide rail is connected to a side surface of the first main body, and the first slide rail extends from the first sliding end to the first rotating end, the first pressing plate includes a first plate body and a first sliding body, the first sliding body is fixedly connected to the first plate body, and the first sliding body is slidably connected to the first slide rail;

the synchronous swing arm of second still includes the second slide rail, the second main part still includes that the second rotates the end, the second slide rail coupling to the side of second main part, just the second slide rail certainly the second slip end extends to the second rotates the end, the second clamp plate includes the second plate body and the second sliding body, the second sliding body fixed connection to the second plate body, the second sliding body sliding connection to the second slide rail.

Therefore, in the process of relatively folding or relatively unfolding the first fixing frame and the second fixing frame, the first pressing plate and the first synchronous swing arm can relatively rotate and slide. Under the arrangement, the first pressing plate can be driven by the first synchronous swing arm to move along when the first synchronous swing arm and the first fixing frame slide relatively.

In a possible implementation manner, the rotating mechanism further includes a synchronizing gear, the synchronizing gear is disposed inside the base, the first rotating end is rotatably connected to the synchronizing gear, and the second rotating end is rotatably connected to the synchronizing gear.

Wherein the rotational connection of the first rotational end and the synchronizing gear may be a rotational connection formed by a real shaft.

In a possible embodiment, the first synchronous swing arm and the second synchronous swing arm are respectively connected to two sides of the synchronous gear, and the first synchronous swing arm can rotate relative to the base and drives the second synchronous swing arm to rotate relative to the base through the synchronous gear.

That is, the first synchronous swing arm, the second synchronous swing arm and the synchronous gear can form a gear motion chain of "first synchronous swing arm-synchronous gear-second synchronous swing arm", so that the synchronous motion of the first synchronous swing arm and the second synchronous swing arm is realized, that is, the opening and closing of the first synchronous swing arm and the second synchronous swing arm, that is, the opening and closing of the rotating mechanism is also realized. Synchronous motion is understood to mean that the rotation angles of the first and second synchronous swing arms are synchronous, i.e. if the first synchronous swing arm rotates 30 ° relative to the base, the second synchronous swing arm also rotates 30 ° relative to the base. In other words, the first synchronous swing arm and the second synchronous swing arm are respectively connected to two sides of the synchronous gear, the first synchronous swing arm can rotate relative to the base, and the second synchronous swing arm is driven to rotate relative to the base through the synchronous gear.

In a possible implementation manner, the rotating mechanism further includes a first main swing arm and a second main swing arm, the first main swing arm and the second main swing arm are respectively located on two opposite sides of the base, the first main swing arm is rotatably connected with the base, the first main swing arm is fixedly connected with the first fixing frame, the second main swing arm is rotatably connected with the base, and the second main swing arm is fixedly connected with the second fixing frame.

It can be understood that the first main swing arm is rotatably connected with the base and fixedly connected with the first fixing frame, so that a connecting rod structure is formed. And the first main swing arm can be used as a main swing arm for driving the first fixing frame, and the first synchronous swing arm can be used as a secondary swing arm for driving the first fixing frame, so that the first fixing frame can be driven by the double swing arms together to rotate relative to the base. That is, when the first fixing frame rotates relative to the base, the first main swing arm can be driven to rotate relative to the base, and the first synchronous swing arm can be driven to rotate relative to the base and slide relative to the first fixing frame.

In a possible embodiment, the rotation center of the first main swing arm is a first axis, the rotation center of the first synchronous swing arm is a second axis, and the orthographic projection of the first axis on the base is arranged in a staggered manner with the orthographic projection of the second axis on the base;

the rotation center of the first main swing arm is a third axis, the rotation center of the first synchronous swing arm is a fourth axis, and the orthographic projection of the third axis on the base and the orthographic projection of the fourth axis on the base are arranged in a staggered mode.

The rotation center (first axis) of the first main swing arm is a rotation center of the first main swing arm and the base, and can be understood as a straight line which can enable the first main swing arm to rotate around the first main swing arm relative to the base within an angle range of 0-90 degrees. The rotation center (second axis) of the first synchronous swing arm is the rotation center of the relative rotation of the first synchronous swing arm and the base, and can be understood as a straight line which can enable the first synchronous swing arm to rotate around the first synchronous swing arm relative to the base within the angle range of 0-90 degrees.

In the present embodiment, the orthographic projection of the first axis on the base and the orthographic projection of the second axis on the base are arranged in a staggered manner. That is, the orthographic projection of the first axis on the base and the orthographic projection of the second axis on the base are not collinear, and the first axis and the second axis are arranged in a staggered mode due to the distance difference. Based on this, when the first swing arm and the first synchronous swing arm rotate relative to the base, the first swing arm will rotate in advance compared with the first synchronous swing arm, and the first synchronous swing arm will rotate in retard compared with the first swing arm.

Therefore, the first main swing arm and the first synchronous swing arm can slide relative to the first fixing frame in the rotating process of the first main swing arm and the first synchronous swing arm by utilizing the phase differential principle that the first axis and the second axis are arranged in a staggered mode and the rotation between the first main swing arm and the second main swing arm generates phase differential.

In a possible embodiment, the first pressing plate comprises a first plate body and a first arc-shaped arm, the first arc-shaped arm is fixedly connected to the first plate body, the first fixing frame is provided with a first arc-shaped groove, and the first arc-shaped arm is slidably connected to the first arc-shaped groove;

the second pressing plate comprises a second plate body and a second arc-shaped arm, the second arc-shaped arm is fixedly connected to the second plate body, the second fixing frame is provided with a second arc-shaped groove, and the second arc-shaped arm is connected to the second arc-shaped groove in a sliding mode.

Therefore, the first pressing plate can rotate along with the first fixing frame in the rotating process of the first fixing frame relative to the base through the sliding of the first arc-shaped arm in the first arc-shaped groove, and therefore the first pressing plate can rotate relative to the base.

In a possible implementation manner, the first pressing plate further includes a first baffle, the first baffle is connected to a side surface of the first arc-shaped arm, and the first baffle is further fixedly connected to the first plate body;

the second pressing plate further comprises a second baffle, the second baffle is connected to the side face of the second arc-shaped arm, and the second baffle is fixedly connected with the second plate body.

It can be understood that first plate body can support first arc arm, provides the intensity guarantee for first arc arm to avoid first arc arm to cause the problem emergence of slewing mechanism inefficacy because of the circumstances such as breaking occur, damage at the rotation in-process. The first baffle can be connected to one side of the first arc-shaped arm close to the end of the first plate body, so that the first baffle is prevented from blocking sliding fit between the first arc-shaped arm and the first arc-shaped groove.

In a second aspect, the present application further provides an electronic device, which includes a first housing, a second housing, and the rotating mechanism as described above, wherein the rotating mechanism is connected between the first housing and the second housing.

Drawings

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

fig. 2 is a schematic partially exploded view of an electronic device provided in an embodiment of the present application;

FIG. 3 is a simplified schematic connection diagram of an electronic device provided by an embodiment of the present application;

FIG. 4 is a schematic diagram of a state of an electronic device according to an embodiment of the present application;

fig. 5 is a schematic view of another state of an electronic device provided in an embodiment of the present application;

FIG. 6 is a schematic diagram of another state of an electronic device provided in an embodiment of the present application;

FIG. 7 is a schematic view of a rotating mechanism provided in an embodiment of the present application;

FIG. 8 is an exploded view of a rotation mechanism provided in an embodiment of the present application;

FIG. 9 is a schematic view of another state of a rotating mechanism provided in an embodiment of the present application;

FIG. 10 is a schematic view of a rotating mechanism provided in an embodiment of the present application in another state;

FIG. 11 is an angular schematic view of a rotation mechanism provided in embodiments of the present application;

FIG. 12 is a cross-sectional view taken along section line B of FIG. 7;

fig. 13 is a cross-sectional view taken along section line C of fig. 10.

Detailed Description

For convenience of understanding, terms referred to in the embodiments of the present application are first explained.

Connecting: it should be understood that, for example, A and B are connected, either directly or indirectly through an intermediate.

The following description of the embodiments of the present application will be made with reference to the accompanying drawings.

Based on this, please refer to fig. 1 to fig. 13, embodiments of the present disclosure provide a rotating mechanism 100 and an electronic device 200 using the rotating mechanism 100, where the rotating mechanism 100 has an excellent rotating effect, which is beneficial to improve the stress on the screen during the rotating process.

The electronic device 200 may be any device with foldable performance, which can be unfolded and closed under the operation of a user. Illustratively, the electronic device 200 may be, but is not limited to, a mobile phone, a tablet computer, an e-reader, a notebook computer, a vehicle-mounted device, and the like. In the embodiment of the present application, for convenience of understanding, the electronic device 200, such as a mobile phone, having a wide use range and a rich application scenario will be taken as an example for description, but the present application is not limited thereto.

Referring to fig. 1, fig. 2 and fig. 3, the electronic device 200 includes a flexible display screen 210, a first housing 220, a second housing 230 and a rotating mechanism 100.

It should be noted that fig. 1 to fig. 3 are only for schematically describing the connection relationship of the flexible display screen 210, the first housing 220, the second housing 230 and the rotating mechanism 100, and the connection position, the specific configuration and the number of the devices are not particularly limited. The illustrated structure of the embodiment of the present application does not specifically limit the electronic device 200. In other embodiments of the present application, the electronic device 200 may include more or fewer components than shown, or combine certain components, or split certain components, or a different arrangement of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The first housing 220 and the second housing 230 may be independent housing structures capable of jointly carrying the flexible display screen 210, and can be actuated by the rotating mechanism 100 to enable the first housing 220 and the second housing 230 to perform relative folding and relative unfolding actions, so as to switch the electronic device 200 between the closed state and the unfolded state, and maintain the electronic device in the closed state and the unfolded state.

The rotating mechanism 100 is connected between the first casing 220 and the second casing 230, and the rotating mechanism 100 can enable the first casing 220 and the second casing 230 to be relatively unfolded to be in a flat state, can enable the first casing 220 and the second casing 230 to be relatively folded to be in a closed state, and can enable the first casing 220 and the second casing 230 to be in an intermediate state between the flat state and the closed state, so that the folding performance of the electronic device 200 is realized.

The flexible display screen 210 is carried on the first housing 220, the second housing 230 and the rotating mechanism 100, can be used for displaying information and providing an interactive interface for a user, and can be unfolded along with the relative unfolding of the first housing 220 and the second housing 230 and folded along with the relative folding of the first housing 220 and the second housing 230. The flexible display screen 210 may be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (active-matrix organic light-emitting diode, AMOLED) display screen, a mini light-emitting diode (mini-OLED) display screen, a micro light-emitting diode (micro-organic light-emitting diode) display screen, a micro organic light-emitting diode (micro-organic light-emitting diode) display screen, or a quantum dot light-emitting diode (QLED) display screen. The flexible display screen 210 can be fixed on the first housing 220, the second housing 230 and the rotating mechanism 100 by means of glue dispensing.

Specifically, referring to fig. 4, the first housing 220 and the second housing 230 can be relatively unfolded to be in a flat state, so that the electronic device 200 is in the flat state. When the electronic device 200 is in the flat state, the plane size of the electronic device 200 is larger, and the flexible display screen 210 is in the flat state after being flattened. At this time, the flexible display screen 210 can perform full-screen display, so that the electronic device 200 has a larger display area, can present a large-screen display effect, and improves the use experience of the user. Illustratively, the angle between the first housing 220 and the second housing 230 in the flattened state may be approximately 180 ° (some deviation is also allowed, such as 175 °, 178 °, or 185 °).

Referring to fig. 5, the first housing 220 and the second housing 230 can also be folded relatively to a closed state, so that the electronic device 200 is in the closed state. When the electronic device 200 is folded, the electronic device 200 has a smaller plane size, which is convenient for the user to store and carry. Illustratively, when the first housing 220 and the second housing 230 are in the closed state, they can be completely closed to be parallel to each other (some deviation is also allowed).

Referring to fig. 6, the first housing 220 and the second housing 230 can also rotate relatively to approach each other (folding) or move away from each other (unfolding) to an intermediate state, so that the electronic device 200 is in the intermediate state, wherein the intermediate state can be any state between the flat state and the closed state. For example, when the first housing 220 and the second housing 230 are in the intermediate state, the included angle therebetween may be 135 °, 90 °, or 45 °.

For example, the electronic device 200 may employ the rotation mechanism 100 to fold the flexible display screen 210 inwards, and at this time, the flexible display screen 210 may be sandwiched between the first casing 220 and the second casing 230, that is, the flexible display screen 210 may be located inside the first casing 220 and the second casing 230 and be wrapped by the first casing 220 and the second casing 230. Alternatively, the electronic device 200 may employ the rotating mechanism 100 to fold the flexible display screen 210 outward, and at this time, the flexible display screen 210 may be exposed to the outside as an appearance structure of the electronic device 200, that is, the flexible display screen 210 may be located outside the first casing 220 and the second casing 230 to be in a state of wrapping the first casing 220 and the second casing 230.

Thus, the electronic apparatus 200 can be switched between the flat state and the closed state by the actuation of the rotating mechanism 100, and can be maintained in the flat state and the closed state.

Referring to fig. 7, 8 and 9, the rotating mechanism 100 includes a base 10, a first fixing frame 21, a second fixing frame 22, a first swing arm 31, a second swing arm 32, a first synchronization swing arm 41, a second synchronization swing arm 42, a first pressing plate 51, a second pressing plate 52 and a synchronization gear 60.

In the extending direction of the flexible display screen 210, the first fixing frame 21, the first pressing plate 51, the base 10, the second pressing plate 52, and the second fixing frame 22 are sequentially arranged. With this arrangement, the first fixing frame 21, the first pressing plate 51, the base 10, the second pressing plate 52 and the second fixing frame 22 can function to support the flexible display screen 210 together in the closed state, the intermediate state and the flat state of the electronic device 200.

Specifically, when the electronic device 200 is in the flat state, the first fixing frame 21, the first pressing plate 51, the base 10, the second pressing plate 52, and the second fixing frame 22 are flush and can jointly support the flexible display screen 210, so that the flexible display screen 210 is more flat and is not easily damaged by external force touch, and the reliability of the flexible display screen 210 is improved. When the electronic device 200 is in the closed state, the first housing 220 and the second housing 230 can be folded to be parallel to each other, so that the first fixing frame 21, the first pressing plate 51, the base 10, the second pressing plate 52 and the second fixing frame 22 together form an accommodating space for accommodating the flexible display screen 210, thereby providing more excellent support performance for the flexible display screen 210. For example, the housing space may take the form of a water droplet, or the housing space may take the form of a baseball.

Illustratively, the first pressing plate 51 and the second pressing plate 52 are symmetrically distributed on two sides of the base 10, the first fixing frame 21 and the second fixing frame 22 are symmetrically distributed on two sides of the base 10, and the first casing 220 and the second casing 230 are symmetrically distributed on two sides of the base 10. However, it should be understood that the symmetric distribution refers to a symmetric distribution in position, and does not mean that the shape and structure of the two supporting plates, the two fixing frames, and the two housings are completely the same, and the structures of the two supporting plates, the two fixing frames, and the two housings may be the same or different, which is not strictly limited by the embodiments of the present application.

The various components of the turning mechanism 100 and their connection to each other will be described in detail below with reference to fig. 7-13.

Referring to fig. 7, 8 and 10, the base 10 can maintain a static state during the relative folding and unfolding of the first fixing frame 21 and the second fixing frame 22. In other words, during the relative folding and unfolding of the first fixing frame 21 and the second fixing frame 22, the base 10 can maintain its position unchanged, i.e. the base 10 is relatively stationary, and both the first fixing frame 21 and the second fixing frame 22 can rotate relative to the base 10.

The base 10 has a receiving space therein, which can be used to receive at least part of the components of the rotating mechanism 100 and other structures in the electronic device 200. For example, the synchronizing gear 60 of the synchronizing assembly may be disposed inside the base 10, and the base 10 may be configured to receive the synchronizing gear 60. Specifically, the synchronizing gear 60 includes a first rotating gear 61, a second rotating gear 62, a first synchronizing gear 63, and a second synchronizing gear 64, and the first rotating gear 61, the second rotating gear 62, the first synchronizing gear 63, and the second synchronizing gear 64 are all located in the housing space in the base 10. The first rotating gear 61 is meshed with a first synchronizing gear 63, the second rotating gear 62 is meshed with a second synchronizing gear 64, and the first synchronizing gear 63 is also meshed with the second synchronizing gear 64.

Referring to fig. 2, 7, 8 and 10, the first fixing frame 21 is connected to the first housing 220 and can be linked with the first housing 220. That is, when the first housing 220 performs a rotation motion, the first fixing frame 21 is driven to perform a rotation motion synchronously. When the first fixing frame 21 performs a rotation motion, the first housing 220 is driven to perform a rotation motion synchronously. Therefore, the electronic device 200 has better mechanism tensile strength and mechanism extrusion resistance, but the key design of the present application is not in the connection implementation form of the first fixing frame 21 and the first housing 220, and the specific structure and connection position for connecting the first fixing frame 21 and the first housing 220 are not strictly limited.

The first fixing frame 21 is provided with a first arc-shaped groove 211, the first arc-shaped groove 211 is located at one end of the first fixing frame 21, and the first arc-shaped groove 211 can be used for being matched with a first arc-shaped arm 512 on the first pressing plate 51, so that the first fixing frame 21 is rotatably connected with the first pressing plate 51. Illustratively, the first arc-shaped slot 211 may be arc-shaped, and can cooperate with the arc-shaped first arc-shaped arm 512 of the first pressing plate 51, and through the relative movement between the two, a virtual axis rotating connection is formed between the first fixing frame 21 and the first pressing plate 51, so as to ensure the stability of the rotating mechanism 100 when opening and closing.

The first fixing frame 21 is further provided with a first sliding slot 212 and a first guiding space 213, and the first sliding slot 212 and the first guiding space 213 are located at the other end of the first fixing frame 21. The first guide space 213 is located at the periphery of the first sliding groove 212 and communicates with the first sliding groove 212. The first guide space 213 may also be understood as the first sliding groove 212 is formed to be outwardly expanded and depressed. The first sliding groove 212 and the first guiding space 213 can cooperate with the first synchronization swing arm 41 to realize a sliding connection with the first synchronization swing arm 41. For example, the first sliding groove 212 may be a through groove, and the shape thereof may be adaptively adjusted according to the shape of the structure sliding therein, which is not strictly limited. For example, the structure sliding therein is rectangular in shape, and the first sliding groove 212 may be a rectangular groove accordingly. The size of the first guide space 213 can be adjusted adaptively according to the size of the structure sliding therein, which is not strictly limited.

It should be understood that the first sliding slot 212, the first guiding space 213 and the first arc-shaped slot 211 can be respectively located at two ends of the first fixing frame 21, so that the rotating motion between the first fixing frame 21 and the first pressing plate 51 and the sliding motion between the first fixing frame 21 and the first synchronous swinging arm 41 can have suitable motion spaces, so as to reduce the possibility of occurrence of the problem of mutual interference caused by overlapping of the motion spaces of the two to the minimum, and have good reliability.

Referring to fig. 2, fig. 7, fig. 8 and fig. 10, the second fixing frame 22 is provided with a second arc-shaped slot 221, the second arc-shaped slot 221 is located at one end of the second fixing frame 22, and the second arc-shaped slot 221 can be used to cooperate with a second arc-shaped arm 522 on the second pressing plate 52 to realize the rotational connection between the second fixing frame 22 and the second pressing plate 52. Illustratively, the second arc-shaped slot 221 may be arc-shaped, and can cooperate with the second arc-shaped arm 522 of the second pressing plate 52 to form a virtual axis rotating connection between the second fixing frame 22 and the second pressing plate 52 through the relative movement therebetween, so as to ensure the stability of the rotating mechanism 100 when opening and closing.

The second fixing frame 22 is further provided with a second sliding chute 222 and a second guiding space 223, and the second sliding chute 222 and the second guiding space 223 are located at the other end of the second fixing frame 22. The second guide space 223 is located at the periphery of the second slide groove 222 and communicates with the second slide groove 222. The second guide space 223 may also be understood as the second sliding groove 222 is formed to be outwardly expanded and depressed. The second sliding groove 222 and the second guide space 223 can cooperate with the second synchronizing swing arm 42 to achieve a sliding connection with the second synchronizing swing arm 42. For example, the second sliding groove 222 may be a through groove, and the shape thereof may be adaptively adjusted according to the shape of the structure sliding therein, which is not strictly limited. For example, the structure sliding therein may be rectangular in shape, and the second sliding slot 222 may be a rectangular slot accordingly. The size of the second guide space 223 can be adaptively adjusted according to the size of the structure sliding therein, which is not strictly limited.

It should be understood that the second sliding slot 222, the second guiding space 223 and the second arc-shaped slot 221 can be respectively located at two ends of the second fixing frame 22, so that the rotating movement between the second fixing frame 22 and the second pressing plate 52 and the sliding movement between the second fixing frame 22 and the second synchronizing swing arm 42 can have suitable movement spaces, so as to reduce the possibility of occurrence of the problem of mutual interference caused by overlapping of the movement spaces of the two to the minimum, and have good reliability.

Based on the above description, when the first holder 21 and the second holder 22 rotate relative to the base 10 to approach each other, the first casing 220 and the second casing 230 also rotate relative to the base 10 to approach each other, thereby achieving the relative folding of the first casing 220 and the second casing 230. When the first holder 21 and the second holder 22 rotate relative to the base 10 to move away from each other, the first casing 220 and the second casing 230 also rotate relative to the base 10 to move away from each other, thereby achieving the relative expansion of the first casing 220 and the second casing 230.

Referring to fig. 2, fig. 7, fig. 8 and fig. 10, in an embodiment of the present application, the first pressing plate 51 is rotatably connected to the first fixing frame 21, and the first pressing plate 51 is driven to rotate along with the first fixing frame 21 rotating relative to the base 10. That is, the first pressing plate 51 can be rotated with respect to the base 10 by the rotation of the first fixing frame 21 with respect to the base 10.

Specifically, as shown in fig. 7, 8 and 11, the first presser plate 51 includes a first plate body 511, a first arc-shaped arm 512, a first shutter 513 and a first slider body 514.

The first plate body 511 includes a first face 515 and a second face 516, which are disposed opposite to each other, the first face 515 is a surface of the first plate body 511 capable of bearing the flexible display screen 210, and the second face 516 is a surface of the first plate body 511 facing away from the flexible display screen 210.

One end of the first arc-shaped arm 512 is connected to the second surface 516 of the first plate 511, and the other end of the first arc-shaped arm 512 protrudes relative to the first plate 511. The position of the first arc-shaped arm 512 corresponds to the position of the first arc-shaped groove 211 on the first fixing frame 21, so that the first arc-shaped arm 512 can slide in the first arc-shaped groove 211, and thus, the first pressing plate 51 can rotate along with the first fixing frame 21 in the process that the first fixing frame 21 rotates relative to the base 10 through the sliding of the first arc-shaped arm 512 in the first arc-shaped groove 211, so as to rotate relative to the base 10. It should be understood that the first arc-shaped arm 512 is sized to fit the first arc-shaped slot 211 of the first fixing frame 21, so as to realize the sliding action of the first arc-shaped arm 512 in the first arc-shaped slot 211.

The first blocking plate 513 is connected to a side surface of the first arc-shaped arm 512, and extends from one end of the first arc-shaped arm 512 to the other end of the first arc-shaped arm 512, and the first blocking plate 513 is further fixedly connected to the second surface 516 of the first plate 511. First plate 511 can support first arc arm 512, provides the intensity guarantee for first arc arm 512 to avoid first arc arm 512 to cause the problem emergence of slewing mechanism 100 inefficacy because of the condition such as breaking, damage at the rotation in-process. The first blocking plate 513 may be specifically connected to a side of the first arc-shaped arm 512 close to the end of the first plate 511, so as to prevent the first blocking plate 513 from blocking the sliding fit between the first arc-shaped arm 512 and the first arc-shaped groove 211.

The first sliding body 514 is fixedly connected to the second surface 516 of the first plate 511, and the first sliding body 514 can be slidably engaged with the first synchronization swing arm 41. The first sliding body 514 may be spaced apart from the first arc-shaped arm 512, and is located on the same side of the first plate 511 as the first arc-shaped arm 512, so as to facilitate sliding connection between the first synchronous swing arm 41 and the first fixed frame 21. It should be understood that the first sliding body 514 may be any structure capable of achieving a sliding connection with the first synchronous swing arm 41, and the embodiment of the present application is not limited thereto. Illustratively, the first sliding body 514 may have a cylindrical shape.

Referring to fig. 2, fig. 7, fig. 8 and fig. 10, in an embodiment of the present application, the second pressing plate 52 is rotatably connected to the second fixing frame 22, and the second pressing plate 52 is driven to rotate along with the rotation of the second fixing frame 22 relative to the base 10. That is, the second pressing plate 52 can be rotated relative to the base 10 by the rotation of the second fixing frame 22 relative to the base 10.

Specifically, as shown in fig. 7, 8 and 11, the second pressing plate 52 includes a second plate body 521, a second arc-shaped arm 522, a second shutter 523 and a second slider 524.

The second board body 521 includes a third surface 525 and a fourth surface 526, which are opposite to each other, wherein the third surface 525 is a surface of the second board body 521, which can carry the flexible display screen 210, and the fourth surface 526 is a surface of the second board body 521, which faces away from the flexible display screen 210.

One end of the second arc-shaped arm 522 is connected to the fourth surface 526 of the second plate 521, and the other end of the second arc-shaped arm 522 protrudes relative to the second plate 521. The position of the second arc-shaped arm 522 corresponds to the position of the second arc-shaped groove 221 on the second fixing frame 22, so that the second arc-shaped arm 522 can slide in the second arc-shaped groove 221, and therefore, the second pressing plate 52 can rotate along with the second fixing frame 22 during the rotation of the second fixing frame 22 relative to the base 10 through the sliding of the second arc-shaped arm 522 in the second arc-shaped groove 221, so as to rotate relative to the base 10. It should be appreciated that the second arc-shaped arm 522 is sized to fit within the second arc-shaped slot 221 of the second mount 22, thereby providing a sliding motion of the second arc-shaped arm 522 within the second arc-shaped slot 221.

The second blocking plate 523 is connected to a side surface of the second arc-shaped arm 522, and extends from one end of the second arc-shaped arm 522 to the other end of the second arc-shaped arm 522, and the second blocking plate 523 is further fixedly connected to the fourth surface 526 of the second plate 521. The second plate 521 can support the second arc-shaped arm 522 to provide strength guarantee for the second arc-shaped arm 522, so as to avoid the problem that the second arc-shaped arm 522 fails due to the conditions of fracture, damage and the like in the rotating process of the rotating mechanism 100. The second blocking plate 523 may be specifically connected to a side of the second arc-shaped arm 522 close to the end of the second plate body 521, so as to prevent the second blocking plate 523 from blocking the sliding fit between the second arc-shaped arm 522 and the second arc-shaped groove 221.

A second sliding body 524 is fixedly connected to a fourth surface 526 of the second plate 521, and the second sliding body 524 can be in sliding fit with the second synchronization swing arm 42. The second sliding body 524 may be spaced apart from the second arc-shaped arm 522 and located on the same side of the second plate 521 as the second arc-shaped arm 522, so as to facilitate the sliding connection between the second synchronous swing arm 42 and the second fixed frame 22. It should be appreciated that the second sliding body 524 may be any structure capable of achieving a sliding connection with the second synchronization swing arm 42, and the embodiment of the present application is not limited thereto. For example, the second sliding body 524 may have a cylindrical shape.

Based on the above description, it should be understood that when the first fixing frame 21 rotates relative to the base 10, the first pressing plate 51 can be driven to rotate relative to the base 10. When the second fixing frame 22 rotates relative to the base 10, the second pressing plate 52 can be driven to rotate relative to the base 10. Therefore, the first pressing plate 51 and the second pressing plate 52 can rotate back to the base 10 to be flush, so as to realize the function of flatly supporting the flexible display screen 210, or the first pressing plate 51 and the second pressing plate 52 can rotate towards each other and close relative to the base 10, so as to realize the function of folding the flexible display screen 210.

Referring to fig. 7, fig. 8 and fig. 10, in an embodiment of the present application, the first fixing frame 21 can be connected to the base 10 through the first main swing arm 31. Specifically, one end 311 of the first swing main arm 31 is pivotally connected to the base 10, and the first swing main arm 31 can perform pivotal movement with respect to the base 10. The first main swing arm 31 and the base 10 may be connected through a virtual shaft, that is, an arc-shaped arm is disposed on the first main swing arm 31, an arc-shaped groove is disposed inside the base 10, and the first main swing arm 31 and the base 10 rotate through the sliding motion of the arc-shaped arm in the arc-shaped groove. Alternatively, the first main swing arm 31 and the base 10 may be connected by a real shaft. The other end 312 of the first main swing arm 31 is fixedly connected with the first fixing frame 21, and the first main swing arm 31 can be linked with the first fixing frame 21. That is, when the first main swing arm 31 performs a rotational motion, the first fixing frame 21 is driven to perform a rotational motion synchronously. When the first fixing frame 21 performs a rotation motion, the first main swing arm 31 is driven to perform a rotation motion synchronously. Therefore, the first fixing frame 21 can rotate relative to the base 10, and drives the first main swing arm 31 to rotate relative to the base 10, so as to form a kinematic chain of "the first fixing frame 21-the first main swing arm 31-the base 10", so that the rotating mechanism 100 can perform a smooth rotating motion. Illustratively, the first main swing arm 31 may form an integrated structure with the first fixing frame 21, wherein the integrated structure formed by connecting the first main swing arm 31 and the first fixing frame 21 may be an integrated structure formed by integrally molding the first main swing arm 31 and the first fixing frame 21, or the integrated structure formed by connecting the first main swing arm 31 and the first fixing frame 21 may be an integrated structure formed by processes such as welding, bonding, and the like.

The second fixing frame 22 can be connected to the base 10 in a rotatable manner via a second main swing arm 32. Specifically, one end 321 of the second main swing arm 32 is rotatably connected to the base 10, and the second main swing arm 32 can perform a rotational movement with respect to the base 10. The second main swing arm 32 and the base 10 may be connected through a virtual shaft, that is, an arc-shaped arm is disposed on the second main swing arm 32, an arc-shaped groove is disposed inside the base 10, and the second main swing arm 32 and the base 10 rotate through the sliding motion of the arc-shaped arm in the arc-shaped groove. Alternatively, the second main swing arm 32 and the base 10 may be connected by a real shaft. The other end 322 of the second main swing arm 32 is fixedly connected to the second fixing frame 22, and the second main swing arm 32 can be linked with the second fixing frame 22. That is, when the second main swing arm 32 performs a rotational motion, the second fixing frame 22 is driven to perform a rotational motion synchronously. When the second fixing frame 22 performs a rotation motion, the second main swing arm 32 is driven to perform a rotation motion synchronously. Therefore, the second fixing frame 22 can rotate relative to the base 10, and drives the second main swing arm 32 to rotate relative to the base 10, so as to form a "second fixing frame 22-second main swing arm 32-base 10" kinematic chain, so that the rotating mechanism 100 can smoothly rotate. For example, the second swing main arm 32 may form an integrated structure with the second fixing frame 22, wherein the integrated structure formed by connecting the second swing main arm 32 and the second fixing frame 22 may be an integrated structure formed by integrally molding the second swing main arm 32 and the second fixing frame 22, or an integrated structure formed by connecting the second swing main arm 32 and the second fixing frame 22 may also be an integrated structure formed by a process such as welding, bonding, or the like.

In the embodiment of the present application, when the first fixing frame 21 is driven by the first main swing arm 31 to rotate relative to the base 10, the first synchronization swing arm 41 can rotate relative to the base 10 and slide relative to the first fixing frame 21. When the second fixing frame 22 is driven by the second main swing arm 32 to rotate relative to the base 10, the second synchronizing swing arm 42 can rotate relative to the base 10 and slide relative to the second fixing frame 22.

Referring to fig. 8, 12 and 13, the first synchronization swing arm 41 includes a first body 411, a first flange 412 and a first sliding rail 413. The first body 411 includes a first rotating end 414 and a first sliding end 415. The first rotating end 414 extends into the base 10 and is connected to the first rotating gear 61, and the first synchronizing swing arm 41 can be driven to rotate relative to the base 10 by the meshing relationship between the first rotating gear 61 and the first synchronizing gear 63. In other words, the first synchronization swing arm 41 can rotate relative to the base 10. For example, the first synchronization swing arm 41 and the first rotation gear 61 may be assembled structures formed by welding, bonding, or the like, or the first synchronization swing arm 41 and the first rotation gear 61 may be integrated structures formed by an integrated molding process.

The first sliding end 415 extends into the first sliding slot 212 of the first fixing frame 21, and the first sliding end 415 can slide in the first sliding slot 212. In other words, the first sliding end 415 is slidably connected to the first sliding slot 212. That is, the first synchronization swing arm 41 is slidably connected to the first fixing frame 21. Through the sliding fit of the first synchronous swing arm 41 and the first fixing frame 21, the rotation motion of the first fixing frame 21 relative to the base 10 can be converted into the swing motion of the first synchronous swing arm 41 relative to the base 10, so that the first synchronous swing arm 41 can be used as a sub swing arm of the first fixing frame 21 to be matched with the first main swing arm 31 to drive the first fixing frame 21, and the reliability is good.

The first flange 412 is connected to the first sliding end 415, and two ends of the first flange 412 in the axial direction are protruded relative to the first sliding end 415, and the first flange 412 is slidably connected to the first sliding groove 212 and the first guiding space 213, wherein the axial direction is the direction of the central axis of the first flange 412. Note that, since both ends of the first flange 412 in the axial direction protrude relative to the first sliding end 415, the size of the first flange 412 is larger than the size of the first sliding end 415 in the axial direction. Thus, since a part of the first flange 412 is positioned in the first slide groove 212 and the other part of the first flange 412 is positioned in the first guide space 213, the first flange 412 can slide not only in the first guide space 213 but also in the first slide groove 212. Accordingly, the sliding fit between the first flange 412 and the first guide space 213 facilitates the relative sliding movement between the first synchronization swing arm 41 and the first fixing frame 21, and improves the control accuracy.

The first sliding rail 413 is connected to a side surface of the first main body 411, and the first sliding rail 413 extends from the first sliding end 415 to the first rotating end 414, and the first sliding rail 413 can allow the first sliding body 514 of the first pressing plate 51 to slide therein. In other words, the first sliding body 514 of the first pressing plate 51 is slidably connected to the first sliding rail 413. Therefore, during the process of relatively folding or relatively unfolding the first fixing frame 21 and the second fixing frame 22, the first pressing plate 51 and the first synchronous swinging arm 41 can relatively rotate and slide. With this arrangement, the first pressing plate 51 can be driven by the first synchronization swinging arm 41 to move when the first synchronization swinging arm 41 slides relative to the first fixing frame 21.

Based on the above description, it should be understood that, since the first synchronous swinging arm 41 is rotatably connected with the base 10 and slidably connected with the first fixing frame 21, the first synchronous swinging arm 41 can be driven to rotate relative to the base 10 and slide relative to the first fixing frame 21 when the first fixing frame 21 rotates relative to the base 10. In addition, since the first synchronization swing arm 41 is connected to the first pressing plate 51 in a sliding manner, the first pressing plate 51 can be driven by the first synchronization swing arm 41 to rotate relative to the base 10 by the first synchronization swing arm 41 sliding relative to the first fixing frame 21.

Therefore, the first synchronization swing arm 41 can be used as an active driving structure of the first pressing plate 51, and when the first synchronization swing arm 41 slides relative to the first fixing frame 21, the first pressing plate 51 moves along with the first synchronization swing arm. In other words, the first synchronous swing arm 41 can directly drive the first pressure plate 51 to move, so that the first pressure plate 51 can have sufficient thrust to perform stable and smooth movement, the possibility of jamming and deadlocking during the movement of the first pressure plate 51 is reduced to the minimum, and the reliability is high.

In the embodiment of the present application, the first main swing arm 31 is rotatably connected to the base 10 and fixedly connected to the first fixing frame 21, so as to form a link structure. The first synchronous swing arm 41 is rotatably connected with the base 10 and slidably connected with the first fixing frame 21, thereby forming a link slider structure. Therefore, the connection between the first fixing frame 21 and the base 10 can be realized through the connecting rod structure and the connecting rod slider structure, the rotating mechanism 100 has fewer parts, the matching relation and the matching position are simple, the components are easy to manufacture and assemble, and the mass production is favorably realized.

The first main swing arm 31 can be used as a main swing arm for driving the first fixing frame 21, and the first synchronization swing arm 41 can be used as a sub swing arm for driving the first fixing frame 21, so that the first fixing frame 21 can be driven by the double swing arms together to rotate relative to the base 10. That is, when the first fixing frame 21 rotates relative to the base 10, the first main swing arm 31 can be driven to rotate relative to the base 10, and the first synchronization swing arm 41 can be driven to rotate relative to the base 10 and slide relative to the first fixing frame 21. With this arrangement, the rotation of the first fixing frame 21 relative to the base 10 has better reliability, so that the rotation effect of the rotating mechanism 100 is better, and the screen stress applied to the flexible display screen 210 during the rotation process can be improved.

In one possible embodiment, as shown in fig. 8, the first swing main arm 31 has a rotation center, and the rotation center of the first swing main arm 31 is the first axis a 1. The rotation center (the first axis a1) of the first swing arm 31 is the rotation center of the first swing arm 31 and the base 10, and can be understood as a straight line that can make the first swing arm 31 rotate around the first swing arm with an angle range of 0 ° to 90 ° relative to the base 10. The first synchronization swing arm 41 has a rotation center, and the rotation center of the first synchronization swing arm 41 is the second axis a 2. The rotation center (the second axis a2) of the first synchronization swing arm 41 is the rotation center of the first synchronization swing arm 41 and the base 10, and can be understood as a straight line around which the first synchronization swing arm 41 can rotate within the range of 0 to 90 degrees relative to the base 10.

In the present embodiment, the orthographic projection of the first axis a1 on the base 10 is offset from the orthographic projection of the second axis a2 on the base 10. That is, the orthographic projection of the first axis a1 on the base 10 and the orthographic projection of the second axis a2 on the base 10 are not collinear, and are offset from each other by a distance difference. Accordingly, when the first swing arm 31 and the first synchronization swing arm 41 rotate relative to the base 10, the first swing arm 31 rotates in advance of the first synchronization swing arm 41, and the first synchronization swing arm 41 rotates in retard of the first swing arm 31.

Accordingly, the relative sliding between the first synchronization swing arm 41 and the first fixed frame 21 can be generated during the rotation of the first main swing arm 31 and the first synchronization swing arm 41 by utilizing the phase differential principle that the first axis a1 and the second axis a2 are arranged in a staggered manner and the rotation of the two generates a phase differential.

In the embodiment of the present application, when the second fixing frame 22 is driven by the second main swing arm 32 to rotate relative to the base 10, the second synchronizing swing arm 42 can rotate relative to the base 10 and slide relative to the second fixing frame 22. When the second fixing frame 22 is driven by the second main swing arm 32 to rotate relative to the base 10, the second synchronizing swing arm 42 can rotate relative to the base 10 and slide relative to the second fixing frame 22.

Referring to fig. 8, 12 and 13, the second synchronizing swing arm 42 includes a second body 421, a second flange 422 and a second slide rail 423. The second body 421 includes a second rotating end 424 and a second sliding end 425. The second rotating end 424 extends into the base 10 and is connected to the second rotating gear 62, and the second synchronizing swing arm 42 can be driven to rotate relative to the base 10 by the meshing relationship between the second rotating gear 62 and the second synchronizing gear 64. In other words, the second synchronizing swing arm 42 can rotate relative to the base 10. For example, the second synchronizing swing arm 42 and the second rotating gear 62 may be assembled structures formed by welding, bonding, or the like, or the second synchronizing swing arm 42 and the second rotating gear 62 may be integrated structures formed by an integral molding process.

It is understood that since the second synchronizing gear 64 is also meshed with the first synchronizing gear 63, when one rotates, the other also rotates synchronously due to the meshed relationship therebetween. That is, the first synchronization swing arm 41, the second synchronization swing arm 42, the first rotation gear 61, the second rotation gear 62, the first synchronization gear 63, and the second synchronization gear 64 can form a gear motion chain of "the first synchronization swing arm 41-the first rotation gear 61-the first synchronization gear 63-the second synchronization gear 64-the second rotation gear 62-the second synchronization swing arm 42", so as to implement the synchronous motion of the first synchronization swing arm 41 and the second synchronization swing arm 42, that is, to implement the opening and closing of the electronic device 200. Here, the synchronous motion is understood to mean that the rotation angles of the first synchronous swing arm 41 and the second synchronous swing arm 42 are synchronous, that is, if the first synchronous swing arm 41 rotates 30 ° relative to the base 10, the second synchronous swing arm 42 also rotates 30 ° relative to the base 10. In other words, the first synchronization swing arm 41 and the second synchronization swing arm 42 are respectively connected to both sides of the synchronization gear 60, and the first synchronization swing arm 41 can rotate relative to the base 10 and the second synchronization swing arm 42 is driven to rotate relative to the base 10 by the synchronization gear 60.

The second sliding end 425 extends into the second sliding slot 222 of the second fixing frame 22, and the second sliding end 425 can slide in the second sliding slot 222. In other words, the second sliding end 425 is slidably connected to the second runner 222. That is, the second synchronizing swing arm 42 is slidably connected to the second fixed frame 22. Through the sliding fit between the second synchronizing swing arm 42 and the second fixing frame 22, the rotation motion of the second fixing frame 22 relative to the base 10 can be converted into the swing motion of the second synchronizing swing arm 42 relative to the base 10, so that the second synchronizing swing arm 42 can be used as an auxiliary swing arm of the second fixing frame 22 to cooperate with the second main swing arm 32 to drive the second fixing frame 22, and the reliability is good.

The second flange 422 is connected to the second sliding end 425, and both ends of the second flange 422 in the axial direction, which is the direction in which the central axis of the second flange 422 is located, protrude with respect to the second sliding end 425, and the second flange 422 is slidably connected to the second sliding groove 222 and the second guide space 223. Note that, since both ends of the second flange 422 in the axial direction are protruded relative to the second sliding end 425, the size of the second flange 422 is larger than the size of the second sliding end 425 in the axial direction. Thus, since a part of the second flange 422 is positioned in the second runner 222 and another part of the second flange 422 is positioned in the second guide space 223, the second flange 422 can slide not only in the second guide space 223 but also in the second runner 222. Accordingly, the sliding fit between the second flange 422 and the second guide space 223 facilitates the relative sliding movement between the second synchronization swing arm 42 and the second fixed frame 22, and improves the control accuracy.

The second slide rail 423 is connected to a side surface of the second main body 421, and the second slide rail 423 extends from the second sliding end 425 to the second rotating end 424, and the second slide rail 423 can allow the second sliding body 524 of the second pressing plate 52 to slide therein. In other words, the second sliding body 524 of the second pressing plate 52 is slidably coupled to the second slide rail 423. Therefore, during the relative folding or unfolding process of the second fixing frame 22 and the second fixing frame 22, the second pressing plate 52 and the second synchronous swing arm 42 can rotate and slide relatively. With this arrangement, the second pressing plate 52 can be driven by the second synchronizing swing arm 42 to follow the movement when the second synchronizing swing arm 42 slides relative to the second fixing frame 22.

Based on the above description, it should be understood that, since the second synchronous swing arm 42 is rotatably connected to the base 10 and slidably connected to the second fixing frame 22, the second synchronous swing arm 42 can be driven to rotate relative to the base 10 and slide relative to the second fixing frame 22 when the second fixing frame 22 rotates relative to the base 10. In addition, since the second synchronizing swing arm 42 is rotatably and slidably connected to the second pressing plate 52, the second pressing plate 52 can be driven by the second synchronizing swing arm 42 to rotate relative to the base 10 by the sliding of the second synchronizing swing arm 42 relative to the second fixing frame 22.

Therefore, the second synchronous swing arm 42 can be used as an active driving structure of the second pressing plate 52, and when the second synchronous swing arm 42 slides relative to the second fixed frame 22, the second pressing plate 52 moves along with the second synchronous swing arm. In other words, the second synchronous swing arm 42 can directly drive the second pressing plate 52 to move, so that the second pressing plate 52 can have sufficient thrust to perform stable and smooth movement, and the possibility of jamming and deadlocking during the movement of the second pressing plate 52 is reduced to the minimum, and the reliability is high.

In the embodiment of the present application, the second main swing arm 32 is rotatably connected to the base 10 and fixedly connected to the second fixing frame 22, thereby forming a link structure. The second synchronous swing arm 42 is rotatably connected to the base 10 and slidably connected to the second fixing frame 22, thereby forming a link slider structure. Therefore, the connection between the second fixing frame 22 and the base 10 can be realized through the connecting rod structure and the connecting rod slider structure, and under the framework, the rotating mechanism 100 has fewer parts, the matching relation and the matching position are simple, the components are easy to manufacture and assemble, and the mass production is favorably realized.

In addition, the second main swing arm 32 can be used as a main swing arm for driving the second fixing frame 22, and the second synchronizing swing arm 42 can be used as a sub swing arm for driving the second fixing frame 22, so that the second fixing frame 22 can be driven by the double swing arms together to rotate relative to the base 10. That is, when the second fixing frame 22 rotates relative to the base 10, the second main swing arm 32 is driven to rotate relative to the base 10, and the second synchronizing swing arm 42 is driven to rotate relative to the base 10 and slide relative to the second fixing frame 22. With this arrangement, the rotation of the second fixing frame 22 relative to the base 10 can have better reliability, so that the rotation effect of the rotating mechanism 100 is better, and the screen stress applied to the flexible display screen 210 during the rotation process can be improved.

In one possible embodiment, as shown in fig. 8, the second swing main arm 32 has a center of rotation, and the center of rotation of the second swing main arm 32 is the third axis a 3. The rotation center (third axis a3) of the second swing arm 32 is the rotation center of the second swing arm 32 and the base 10, and can be understood as a straight line that can make the second swing arm 32 rotate around the second swing arm relative to the base 10 within an angle range of 0 ° to 90 °. The second synchronizing swing arm 42 has a center of rotation, and the center of rotation of the second synchronizing swing arm 42 is a fourth axis a 4. The rotation center (fourth axis a4) of the second synchronizing swing arm 42 is the rotation center of the second synchronizing swing arm 42 and the base 10, and can be understood as a straight line which can make the second synchronizing swing arm 42 perform a rotation motion around the second synchronizing swing arm with respect to the base 10 within an angle range of 0 ° to 90 °.

In the present embodiment, the orthographic projection of the third axis A3 on the base 10 is offset from the orthographic projection of the fourth axis a4 on the base 10. That is, the orthographic projection of the third axis A3 on the base 10 and the orthographic projection of the fourth axis a4 on the base 10 are not collinear, and are offset from each other by a distance difference. Based on this, when the second swing arm 32 and the second synchronization swing arm 42 rotate relative to the base 10, the second swing arm 32 rotates in advance compared to the second synchronization swing arm 42, and the second synchronization swing arm 42 rotates in retard compared to the second swing arm 32.

Accordingly, the relative sliding between the second synchronizing swing arm 42 and the second fixed frame 22 can be generated during the rotation of the second main swing arm 32 and the second synchronizing swing arm 42 by utilizing the phase differential principle that the third axis A3 and the fourth axis a4 are arranged in a staggered manner and the rotation of the two generates a phase differential.

The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A rotating mechanism is characterized by comprising a base, a first synchronous swing arm, a second synchronous swing arm, a first fixing frame, a second fixing frame, a first pressing plate and a second pressing plate;

the first fixing frame can rotate relative to the base, and drives the first synchronous swing arm to rotate relative to the base and slide relative to the first fixing frame, so that the first synchronous swing arm and the first pressing plate rotate and slide relatively, the second fixing frame can rotate relative to the base, and drives the second synchronous swing arm to rotate relative to the base and slide relative to the second fixing frame, so that the second synchronous swing arm and the second pressing plate rotate and slide relatively, and the rotation directions of the first fixing frame and the second fixing frame are opposite.

2. The rotating mechanism according to claim 1, wherein the first fixed frame has a first sliding groove and a first guide space, the first guide space is located at a periphery of the first sliding groove and communicates with the first sliding groove, the first synchronizing swing arm includes a first main body and a first flange, the first main body includes a first sliding end, the first flange is connected to the first sliding end, and both ends of the first flange in the axial direction protrude with respect to the first sliding end, the first flange is slidably connected to the first sliding groove and the first guide space, and the first sliding end is slidably connected to the first sliding groove;

the second fixing frame is provided with a second sliding groove and a second guiding space, the second guiding space is located on the periphery of the second sliding groove and communicated with the second sliding groove, the second synchronous swing arm comprises a second main body and a second flange, the second main body comprises a second sliding end, the second flange is connected to the second sliding end, the two ends of the second flange in the axial direction are opposite to the second sliding end, the second flange is connected to the second sliding groove and the second guiding space in a sliding mode, and the second sliding end is connected to the second sliding groove in a sliding mode.

3. The rotating mechanism according to claim 2, wherein the first synchronizing swing arm further comprises a first sliding rail, the first main body further comprises a first rotating end, the first sliding rail is connected to a side surface of the first main body, the first sliding rail extends from the first sliding end to the first rotating end, the first pressing plate comprises a first plate body and a first sliding body, the first sliding body is fixedly connected to the first plate body, and the first sliding body is slidably connected to the first sliding rail;

4. The rotating mechanism according to claim 3, further comprising a synchronizing gear disposed within the base, wherein the first rotating end is rotatably coupled to the synchronizing gear and the second rotating end is rotatably coupled to the synchronizing gear.

5. The rotating mechanism according to claim 4, wherein the first and second synchronous swing arms are respectively connected to two sides of the synchronous gear, and the first synchronous swing arm can rotate relative to the base and is driven by the synchronous gear to rotate relative to the base.

6. The rotating mechanism according to any one of claims 1-5, further comprising a first main swing arm and a second main swing arm, wherein the first main swing arm and the second main swing arm are respectively located at two opposite sides of the base, the first main swing arm is rotatably connected to the base, the first main swing arm is fixedly connected to the first fixing frame, the second main swing arm is rotatably connected to the base, and the second main swing arm is fixedly connected to the second fixing frame.

7. The rotating mechanism according to claim 6, wherein the rotation center of the first main swing arm is a first axis, the rotation center of the first synchronous swing arm is a second axis, and the orthographic projection of the first axis on the base is arranged in a staggered manner from the orthographic projection of the second axis on the base;

8. The rotating mechanism of any one of claims 1-5, wherein the first pressure plate comprises a first plate and a first arcuate arm, the first arcuate arm fixedly coupled to the first plate, the first mount having a first arcuate slot, the first arcuate arm slidably coupled to the first arcuate slot;

9. The rotating mechanism according to claim 8, wherein the first pressing plate further comprises a first blocking plate, the first blocking plate is connected to a side surface of the first arc-shaped arm, and the first blocking plate is further fixedly connected with the first plate body;

10. An electronic device, characterized in that the electronic device comprises a first housing, a second housing and a rotating mechanism according to any of claims 1-9, which rotating mechanism is connected between the first housing and the second housing.