CN116771789A

CN116771789A - Rotating shaft assembly and electronic equipment

Info

Publication number: CN116771789A
Application number: CN202210243712.0A
Authority: CN
Inventors: 郑泽宽; 梁子豪
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2023-09-19

Abstract

The application provides a rotating shaft assembly and electronic equipment. The rotating shaft assembly comprises two rotating pieces and a synchronous lifting piece rotationally connected with at least one of the two rotating pieces, and the synchronous lifting piece is used for supporting the flexible screen; one rotating piece rotates to drive the synchronous lifting piece to move along the direction close to or far away from the flexible screen, and the other rotating piece can be driven to synchronously and reversely rotate relative to the rotating piece. The rotating shaft assembly provided by the application can realize the synchronous function and the lifting function simultaneously through the cooperation of the two rotating parts and the synchronous lifting part, and compared with the synchronous function and the lifting function which respectively need a set of independent parts in the related art, the rotating shaft assembly has the advantages that the structure of the rotating shaft assembly is simplified, the number of structural parts in the rotating shaft assembly is reduced, the cost is reduced, and the precision is improved.

Description

Rotating shaft assembly and electronic equipment

Technical Field

The application belongs to the technical field of foldable electronic equipment, and particularly relates to a rotating shaft assembly and the electronic equipment.

Background

The electronic equipment industry is competing to trend to be ultrathin with large screens, but the large screens bring about oversized whole machine size and inconvenient carrying, and the foldable electronic equipment can change the size of the electronic equipment due to the folding function and is popular with wide users. The electronic device performs other functions such as folding by means of its hinge assembly, such as a synchronization function, and a lifting function of the support member, so that the implementation of the hinge assembly determines the cost, reliability, etc. of the foldable electronic device. However, the structure of the current rotating shaft assembly is complex, and the production cost is high.

Disclosure of Invention

In view of the above, a first aspect of the present application provides a spindle assembly including two rotating members, and a synchronous lifting member rotatably connected to at least one of the two rotating members, the synchronous lifting member being for supporting a flexible screen;

one rotating piece rotates to drive the synchronous lifting piece to move along the direction close to or far away from the flexible screen, and the other rotating piece can be driven to synchronously and reversely rotate relative to the one rotating piece.

The rotating shaft assembly provided by the first aspect of the application can realize multiple functions through the synchronous lifting piece and the two rotating pieces. Firstly, the synchronous lifting piece can be utilized to realize the synchronous function, namely, one rotating piece drives the synchronous lifting piece to move when rotating, and the other rotating piece can be driven to synchronously and reversely move, so that the synchronous rotation of the two rotating pieces is realized. The rotation difficulty of the rotating shaft assembly is reduced, and the synchronism and consistency of the rotation of the two rotating parts are improved.

Secondly, due to the cooperation of the rotating parts, the synchronous lifting part can realize the lifting function of the relative flexible screen. When the rotating shaft assembly is applied to the electronic equipment and the rotating piece rotates, the synchronous lifting piece can be close to or far away from the flexible screen. Specifically, when the synchronous lifting piece is far away from the flexible screen, a screen accommodating space can be provided for bending of the flexible screen, so that the thickness of the whole electronic equipment is reduced. Synchronous lifting piece can be close to the flexible screen when the flexible screen is flattened, support is provided for the flexible screen, stability of the flexible screen is improved, and the problem that the flexible screen is sunken when being pressed is prevented.

In summary, the rotating shaft assembly provided by the application can realize the synchronous function and the lifting function at the same time, and compared with the synchronous function and the lifting function in the related art which respectively need a set of independent components, the rotating shaft assembly has the advantages of simplifying the structure, reducing the number of structural members in the rotating shaft assembly, reducing the cost and improving the precision.

The second aspect of the application provides an electronic device, which comprises a shell, a flexible screen and the rotating component of the rotating component, wherein the shell is connected with the rotating component of the rotating component, and the flexible screen is arranged on the shell.

According to the electronic equipment provided by the second aspect of the application, the structure of the electronic equipment is simplified, the number of structural parts in the electronic equipment is reduced, the cost is reduced, and the precision is improved by adopting the electronic equipment provided by the first aspect of the application.

Drawings

In order to more clearly explain the technical solutions in the embodiments of the present application, the drawings that are used in the embodiments of the present application will be described below.

Fig. 1 is a schematic perspective view of a rotating assembly according to an embodiment of the application.

FIG. 2 is a front view of the spindle assembly of FIG. 1.

Fig. 3 is an exploded view of the spindle assembly of fig. 1.

Fig. 4 is a schematic view illustrating the cooperation of the rotating assembly with the flexible screen when the rotating assembly is in the unfolded state according to an embodiment of the present application.

Fig. 5 is a schematic view illustrating the cooperation of the rotating assembly with the flexible screen when the rotating assembly is in a folded state according to an embodiment of the present application.

Fig. 6 is a schematic view of the engagement of the flexible screen with the hinge assembly in a folded state according to another embodiment of the present application.

FIG. 7 is an exploded view of the spindle assembly of FIG. 2.

Fig. 8 is a front view of a swivel assembly in another embodiment of the application.

Fig. 9 is a front view of a swivel assembly in accordance with yet another embodiment of the application.

Fig. 10 is a front view of the rotary member of fig. 9.

Fig. 11 is a front view of the synchronous lifter of fig. 9.

Fig. 12 is a front view of a rotor assembly in a folded state according to yet another embodiment of the present application.

Fig. 13 is an exploded view of a relay assembly in another embodiment of the present application.

Fig. 14 is a schematic perspective view of a rotating member according to another embodiment of the present application.

Fig. 15 is a schematic view showing a partial perspective structure of a rotating shaft assembly according to another embodiment of the present application.

Fig. 16 is a schematic perspective view of a rotating shaft assembly according to still another embodiment of the present application.

FIG. 17 is an exploded view of the spindle assembly of FIG. 16.

FIG. 18 is a schematic cross-sectional view taken along line A-A of FIG. 16 in accordance with an embodiment of the application.

Fig. 19 is a schematic cross-sectional view taken along A-A of fig. 16 in accordance with another embodiment of the application.

Fig. 20 is an exploded view of a relay assembly in yet another embodiment of the present application.

Fig. 21 is a schematic perspective view of an electronic device according to an embodiment of the application.

Fig. 22 is an exploded view of the electronic device shown in fig. 21.

Description of the reference numerals:

the electronic equipment comprises a rotating shaft assembly-1, electronic equipment-2, a synchronous lifting part-10, a supporting part-11, a rack part-12, a first tooth-120, a first middle tooth-121, a first edge tooth-122, a guiding space-123, a rotating part-20, a rotating part-21, a second tooth-210, a side edge-211, a connecting part-22, a middle part-23, a blocking part-24, a through hole-25, a flexible screen-30, a display surface-31, a base-40, a rotating space-41, a bracket-50, a guiding part-51, a avoiding space-52 and a shell-60.

Detailed Description

The following are preferred embodiments of the present application, and it should be noted that modifications and variations can be made by those skilled in the art without departing from the principle of the present application, and these modifications and variations are also considered as the protection scope of the present application.

In order to realize the synchronous function and the lifting function, the rotating shaft assembly in the current electronic equipment generally needs two independent structures, namely, the synchronous function needs one structure to be realized, and the lifting function needs one structure to be realized. In particular, for the synchronization function, a manner in which a plurality of gears, for example, four gears, are engaged with each other is generally adopted, wherein two gears are respectively connected to two rotating members, thereby achieving synchronous rotation of the two rotating members. For the lifting function, a spring vertical to the positive pressure of the flexible screen is generally adopted to provide traction force in the related art, and then the position of the supporting piece in two states of combination and expansion is realized under the drive of other rotating rods in the rotating shaft. For example, in the process from the combination state to the unfolding state, the lifting support piece is lifted upwards under the support drive of the track rotating rod, so that the support of the bottom of the flexible screen in the flattened state is realized. In the process from the unfolding state to the combining state, the track rotating rod rotates to withdraw, and the lifting support piece descends downwards under the acting force of the spring, so that the flexible screen space is increased.

However, in order to realize the synchronous function and the lifting function, the rotating shaft assembly has more parts and a complex structure. In order to realize the lifting function, a synchronous function is required simultaneously to ensure the lifting stability, so that excessive parts participate in the movement, the precision control of the rotating shaft parts is difficult, and the actual precision is difficult to control in the production process. And because the two sets of structures occupy more space and weight of the rotating shaft, the light and thin structure is difficult to realize. In addition, the support member is pulled only by the spring force of the spring in the lifting function, and in some special cases such as falling, the problem that the flexible folding screen is damaged due to the fact that the position of the support member suddenly and seriously shifts easily occurs.

In order to solve the above problems, the present application provides a spindle assembly. Referring to fig. 1-6 together, fig. 1 is a schematic perspective view of a rotating shaft assembly according to an embodiment of the application. FIG. 2 is a front view of the spindle assembly of FIG. 1. Fig. 3 is an exploded view of the spindle assembly of fig. 1. Fig. 4 is a schematic view illustrating the cooperation of the rotating assembly with the flexible screen when the rotating assembly is in the unfolded state according to an embodiment of the present application. Fig. 5 is a schematic view illustrating the cooperation of the rotating assembly with the flexible screen when the rotating assembly is in a folded state according to an embodiment of the present application. Fig. 6 is a schematic view of the engagement of the flexible screen with the hinge assembly in a folded state according to another embodiment of the present application.

The rotating shaft assembly 1 of the present embodiment includes two rotating members 20 and a synchronous lifting member 10 rotatably connected to at least one of the two rotating members 20, and the synchronous lifting member 10 can support the flexible screen 30. Wherein, the rotation of one rotating member 20 can drive the synchronous lifting member 10 to move along the direction approaching or separating from the flexible screen 30, and can drive the other rotating member 20 to synchronously and reversely rotate relative to the one rotating member 20.

The rotating shaft assembly 1 provided in the embodiment mainly plays a role in rotating and folding, and can be applied to various electronic devices 2 needing folding. The spindle assembly 1 is as the name implies, an assembly, i.e. the spindle assembly 1 is composed of a plurality of structural parts or components together. The rotating shaft assembly 1 provided in this embodiment mainly includes a synchronous lifting member 10 and two rotating members 20. However, this does not mean that the spindle assembly 1 only includes the synchronous lifting member 10 and the two rotating members 20, and the spindle assembly 1 of the present embodiment may also include other structures, but in this embodiment, only the synchronous lifting member 10 and the two rotating members 20 are needed to solve the technical problems in the related art. Next, the present embodiment will be described in detail with respect to the rotating member 20 and the synchronous lifting member 10 in sequence.

The rotating member 20 mainly functions as a rotation, and the rotating member 20 can rotate along its rotation axis (shown as O in fig. 3). Wherein the axis of rotation of the rotator 20 is parallel to the display surface 31 of the flexible screen 30. And the rotating member 20 may also be connected with other components such as a housing of the electronic device 2. The rotation of the housing may drive the rotation member 20 to rotate, or the rotation of the rotation member 20 may drive the housing to rotate. The rotator 20 is rotatably coupled to the base so as to rotate about a rotation axis of the rotator 20. The material, shape, structure, and other parameters of the rotor 20 are not limited in this embodiment, as long as the rotation function can be achieved.

In this embodiment, the number of the rotating members 20 is two, so that the left and right shells are conveniently driven to rotate subsequently, so that the left and right halves of the flexible screen 30 can be folded and rotated, and the switching between the folded state and the unfolded state is realized. Optionally, the two rotating members 20 are disposed in axisymmetric manner, so as to reduce the difficulty of preparation and improve the uniformity and consistency of rotation of the rotating members 20. Specifically, as shown in fig. 3, each of the two rotating members 20 includes a rotating portion 21 and a connecting portion 22 disposed opposite to each other. The rotating part 21 is rotatably connected to the base, so as to realize rotation of the rotating member 20 relative to the base and the synchronous lifting member 10. The connection 22 is for direct or indirect connection to the housing. And the two rotating parts 21 are arranged close to each other, and the two connecting parts 22 are arranged away from each other. In other words, one rotating portion 21 is closer to the other rotating portion 21 than the one connecting portion 22. The other rotating portion 21 is closer to one rotating portion 21 than the other connecting portion 22. Further alternatively, the two rotating parts 21 are arranged at intervals, so that other structural members, such as the synchronous lifting member 10, can be added between the two rotating parts 21 later.

In addition, the rotation shaft assembly 1 may have different states when the rotation member 20 is rotated to different angles. As shown in fig. 4, the rotation shaft assembly 1 can be brought into a unfolded state when the two rotation members 20 are unfolded. The deployment of the two rotating members 20 can also be understood as: the extension directions of the two rotation members 20 are parallel to each other, i.e. the angle between the extension directions of the two rotation members 20 is 180 °. Or the two rotating parts 21 are close to each other, and the two connecting parts 22 are far away from each other compared to the two rotating parts 21. As also shown in fig. 5-6, the spindle assembly 1 can be brought into a folded condition when the two rotating members 20 are brought close to each other. It is also understood that the two rotating members 20 are adjacent to each other such that the extending directions of the two rotating members 20 are parallel to each other, i.e. the angle between the extending directions of the two rotating members 20 is 0 °. Or two rotating parts 21, and two connecting parts 22 are close to each other. As for the two rotating members 20, when moving to other states, i.e., any one of the unfolded state and the folded state, the present embodiment is not limited to and named herein.

The synchronous lifting member 10 can play a role of synchronization and lifting as its name implies. The synchronous lifting member 10 is rotatably connected with at least one of the two rotating members 20, and when the rotating members 20 rotate, the synchronous lifting member 10 can be driven to move, or when the synchronous lifting member 10 moves, the rotating members 20 can be directly or indirectly driven to move. As for the specific connection structure of the synchronous lifter 10 and the rotator 20, and the positional relationship of the synchronous lifter 10 and the rotator 20, the present embodiment is not limited herein, as long as the synchronous lifter 10 can be rotationally connected to the rotator 20. Specifically, in an embodiment, the rotating member 20 may be directly connected to the synchronous lifting member 10 in a rotating manner, or the rotating member 20 may be indirectly connected to the synchronous lifting member 10 in a rotating manner, for example, other structural members may be further disposed between the rotating member 20 and the synchronous lifting member 10, and the rotating member 20 may be connected to the structural members in a rotating manner, and the structural members may be connected to the synchronous lifting member 10 in a rotating manner, so as to achieve a rotating connection between the rotating member 20 and the synchronous lifting member 10. In another embodiment, the rotating member 20 and the synchronous lifting member 10 may be rotatably coupled by gear engagement with each other, or the rotating member 20 and the synchronous lifting member 10 may be rotatably coupled by a belt. In yet another embodiment, two rotating members 20 may be provided on the same side of the synchronous lifting member 10, or two rotating members 20 may be provided on different sides of the synchronous lifting member 10. For example, two rotating members 20 may be provided on opposite sides of the synchronous lifting member 10, or two rotating members 20 may be provided on adjacent sides of the synchronous lifting member 10. In this embodiment, only the synchronous lifting member 10 is directly connected to the rotating member 20 in a rotating manner, the synchronous lifting member 10 is meshed with the rotating member 20 through gears, and the two rotating members 20 are disposed on two opposite sides of the synchronous lifting member 10 for schematic illustration. It will be appreciated that other embodiments are also within the scope of the application. The present embodiment is not limited to parameters such as the material, shape, and structure of the synchronous lifter 10, as long as the synchronous and lifting functions can be realized. Next, the synchronizing function and the lifting function of the synchronous lifting member 10 will be described in detail.

For the synchronizing function of the synchronized lifting member 10, since one rotating member 20 is rotatably connected to the synchronized lifting member 10 when the rotating member 20 rotates, the rotating member 20 can move a tool as an intermediate transmitting force (i.e., the synchronized lifting member 10) and convert the rotation of the rotating member 20 into the movement of the synchronized lifting member 10. And can drive the other rotating member 20 to rotate in the opposite direction in synchronization with one rotating member 20. For example, when one rotating member 20 rotates in a clockwise direction, the other rotating member 20 rotates synchronously and in a counterclockwise direction. Alternatively, when one rotating member 20 rotates in a counterclockwise direction, the other rotating member 20 rotates in a clockwise direction in synchronization. Eventually, the two rotating members 20 are synchronously and oppositely moved, so that the two rotating members 20 can be synchronously unfolded or folded.

Therefore, the synchronization function can be realized by the cooperation of the synchronous lifting member 10 and the two rotating members 20 in the embodiment, so that the two rotating members 20 do synchronous and reverse movements, the rotation difficulty of the rotating shaft assembly 1 is reduced, and the synchronism and consistency of the rotation of the two rotating members 20 are improved.

And, as shown in fig. 4, the synchronous lifter 10 can also support the flexible screen 30 of the rotary shaft assembly 1 in a unfolded state by using its upper surface. That is, when the flexible screen 30 is flattened, the upper surface of the synchronous lifting member 10 is abutted against the surface of the side, facing away from the display surface 31, of the flexible screen 30, so that the support is provided for the flexible screen 30, the mechanical performance is improved, and the problems of depression and the like of the flexible screen 30 when pressed are prevented.

In addition, since the synchronous lifter 10 has a synchronous function, the synchronous lifter 10 also participates in the movement when the two rotating members 20 rotate, and can move in a direction approaching or separating from the flexible screen 30, so that the synchronous lifter 10 can also realize a lifting function. The above-mentioned "approaching or separating" is understood to mean that the movement direction of the synchronous lifter 10 has a vertical component perpendicular to the flexible screen 30, that is, the synchronous lifter 10 may be moved obliquely or vertically. In other words, the moving direction of the synchronous lifting member 10 is disposed at an angle to the plane formed by the rotation axes of the two rotation members 20. I.e. the direction of movement of the synchronized lifting member 10 is not parallel to the plane formed by the axes of rotation of the two rotating members 20, but at an angle to this plane, so that it must have a vertical component perpendicular to this plane.

Specifically, when the rotating shaft assembly 1 is applied to the electronic device 2 and the electronic device rotates and folds, the two rotating members 20 are driven by the flexible screen and the housing to realize synchronous reverse rotation, so as to drive the synchronous lifting member 10 to move. Specifically, when the electronic device 2 is folded inwards, the rotating member 20 rotates to drive the synchronous lifting member 10 to move in a direction approaching or separating from the flexible screen 30. When the synchronous lifter 10 is far away from the flexible screen 30, the distance between the synchronous lifter 10 and the flexible screen 30 can be increased. When the flexible screen 30 is bent and sunk, the middle portion of the flexible screen 30 moves downward, so that the synchronous lifting member 10 is far away to provide a larger screen space for the flexible screen 30. Compared with the scheme of adopting the increased thickness of the shell to accommodate the flexible screen 30 in the related art, the synchronous lifting member 10 is far away from the flexible screen 30, so that the overall thickness of the electronic device 2 can be reduced. When the flexible screen 30 is flattened, the synchronous lifting member 10 can be close to the flexible screen 30 until the synchronous lifting member 10 abuts against the flexible screen 30, so that the synchronous lifting member 10 abuts against the flexible screen 30 to provide support for the flexible screen 30, stability of the flexible screen 30 is improved, and the problem that the flexible screen 30 is sunken when pressed is prevented.

In summary, the rotating shaft assembly 1 provided in the present embodiment can simultaneously implement a synchronization function and a lifting function, and combine the synchronization function and the lifting function into one. Compared with the prior art that the synchronous function and the lifting function respectively need a set of independent components, the application simplifies the structure of the rotating shaft assembly 1, reduces the number of structural members in the rotating shaft assembly 1, reduces the cost and improves the precision. For example, compared with the structure in the related art, the number of parts is reduced by four or more, and the number of single machine is reduced by eight or more.

The above description has been given to the hinge assembly 1 having an unfolded state and a folded state, and the description of this embodiment will be omitted. Since the two rotating members 20 can be mutually converted between the unfolding and folding, and the synchronous lifting member 10 can be close to or far away from the flexible screen 30, the two rotating members 20 and the synchronous lifting member 10 can have various matching relations, and two specific embodiments are specifically provided herein.

In the first embodiment, as shown in fig. 4 to 5, the synchronous lifter 10 moves in a direction away from the flexible screen 30 during the rotation shaft assembly 1 from the unfolded state to the folded state, i.e., during the rotation shaft assembly from fig. 4 to 5, and the synchronous lifter 10 moves in a direction toward the flexible screen 30 during the rotation shaft assembly 1 from the folded state to the unfolded state, i.e., during the rotation shaft assembly from fig. 5 to 4. When the rotating shaft assembly 1 in the matching relationship is applied to the electronic equipment 2, the electronic equipment 2 can be folded inwards. An inward fold is understood to mean that in the folded state the display surfaces 31 of the left and right halves of the flexible screen 30 are closer to each other than the housing, or that one half of the display surfaces 31 is closer to the other half of the display surfaces 31 than the housing. When the electronic device 2 is folded inwards, the synchronous lifting member 10 moves in a direction away from the flexible screen 30, so as to provide a screen accommodating space for the flexible screen 30 to sink. When the electronic device 2 is flattened, the synchronous lifter 10 approaches the flexible screen 30 to support the flexible screen 30.

In the second embodiment, as shown in fig. 4 and 6, the synchronous lifter 10 moves in a direction approaching the flexible screen 30 during the process of the rotating shaft assembly 1 from the unfolded state to the folded state, i.e., during the process of fig. 4 to 6, and the synchronous lifter 10 moves in a direction separating from the flexible screen 30 during the process of the rotating shaft assembly 1 from the folded state to the unfolded state, i.e., during the process of fig. 6 to 4. When the rotating shaft assembly 1 in the matching relationship is applied to the electronic equipment 2, the electronic equipment 2 can be folded outwards. An outward fold is understood to mean that the display surfaces 31 of the left and right halves of the flexible screen 30 are remote from each other in comparison with the housing or that one half of the display surfaces 31 is farther from the other half of the display surfaces 31 than the housing in the folded state. When the electronic device 2 is folded outwards, the synchronous lifting member 10 may be close to the flexible screen 30, so that the distance between the flexible screen 30 and the synchronous lifting member 10 is kept within a preset range, and the synchronous lifting member 10 can support the flexible screen 30 to prevent the flexible screen 30 from being excessively recessed when pressed. When the electronic device 2 is flattened, the synchronous lifter 10 is away from the flexible screen 30, provides a fall-back space for the fall-back of the flexible screen 30, and supports the flexible screen 30 when the flexible screen 30 is flattened.

In summary, the spindle assembly 1 can satisfy at least one of the two embodiments based on the two embodiments. In other words, the rotary shaft assembly 1 may implement only the first embodiment, or the rotary shaft assembly 1 may implement only the second embodiment, or the rotary shaft assembly 1 may implement both the first embodiment and the second embodiment. It may also be understood that when the spindle assembly 1 provided in this embodiment is applied to the electronic device 2, the electronic device 2 may only implement the inner fold, or the electronic device 2 may only implement the outer fold, or the electronic device 2 may implement both the inner fold and the outer fold.

Referring to fig. 3 again, in the present embodiment, the moving direction of the synchronous lifting member 10 is perpendicular to the plane formed by the rotation axes of the two rotation members 20. The present embodiment can make the moving direction of the synchronous lifting member 10 (as shown in fig. 3D) perpendicular to the plane (as shown by the broken line in fig. 3) formed by the rotation axes of the two rotation members 20. In other words, in fig. 3, the synchronous lifter 10 is vertically movable up and down. It can be understood that the synchronous lifter 10 moves up and down in a direction perpendicular to the display surface 31 of the flexible screen 30, so that the moving distance of the synchronous lifter 10 can be reduced, the moving distance of the synchronous lifter 10 can be minimized, and the moving stroke of the synchronous lifter 10 can be shortened when the vertical distance between the flexible screen 30 and the synchronous lifter 10 is changed to be the same. When the rotating shaft assembly 1 provided in the embodiment is applied to the electronic device 2, the space reserved by the electronic device 2 for moving the synchronous lifting member 10 can be reduced, so that the overall size of the electronic device 2 is reduced.

In other embodiments, the synchronous lifting member 10 may of course have other directions of movement, for example, the synchronous lifting member 10 moves obliquely to the plane formed by the axes of rotation of the two rotating members 20, in other words, the direction of movement of the synchronous lifting member 10 has a component in the vertical direction and a component in the horizontal direction. Wherein the vertical direction is a direction perpendicular to the display surface 31 of the flexible screen 30, and the horizontal direction is a direction parallel to the display surface 31 of the flexible screen 30. In this case, the synchronous lifter 10 is moved obliquely upward or obliquely downward.

The above description describes the rotational and moving relationship between the synchronous lifting member 10 and the two rotating members 20 in the spindle assembly 1, and the detailed description of the specific structure of the synchronous lifting member 10 and the rotating members 20 will be described in detail.

Referring to fig. 2 and fig. 7 together, fig. 7 is an exploded view of the spindle assembly shown in fig. 2. In this embodiment, the synchronous lifting member 10 includes a supporting portion 11, and two rack portions 12 fixed to the supporting portion 11, where the supporting portion 11 can support the flexible screen 30, and one rack portion 12 is rotatably connected to one rotating member 20, and the other rack portion 12 is rotatably connected to the other rotating member 20; one rotating member 20 can rotate through one rack portion 12 to drive the supporting portion 11 fixed to the rotating member and the other rack portion 12 fixed to the supporting portion 11 to move in a direction approaching or separating from the flexible screen 30, and the other rack portion 12 drives the other rotating member 20 to synchronously and reversely rotate relative to the one rotating member 20.

The synchronous lifter 10 may be composed of a support portion 11 together with two rack portions 12, wherein the support portion 11 is mainly used to provide a mounting base for the two rack portions 12, and the support portion 11 is also used to support the flexible screen 30. The rack portion 12 is used to make a rotational connection with the rotational member 20. Specifically, the two rack portions 12 are rotatably connected to the same side of the support portion 11, so that the two rack portions 12 are installed using one side of the support portion 11, and the flexible screen 30 is supported using the opposite side of the support portion 11. Alternatively, the two rack portions 12 and the supporting portion 11 may be of an integral structure or a split structure. When the two rack portions 12 and the supporting portion 11 are in an integrated structure, the two rack portions 12 and the supporting portion 11 are manufactured by the same process. When the two rack portions 12 and the supporting portion 11 are in a split structure, the two rack portions 12 and the supporting portion 11 are prepared respectively, and then the two rack portions 12 are fixedly connected to the supporting portion 11 by other methods such as bonding, snap connection, threaded connection, and the like. The present embodiment is schematically described with a structure in which two rack portions 12 and a support portion 11 are integrated.

Alternatively, the two rack portions 12 are connected to each other, or the two rack portions 12 are provided at a spacing. The present embodiment is schematically described with only two rack portions 12 provided at a distance.

The two rack portions 12 are rotatably connected to the two rotating members 20, respectively. Specifically, one rack portion 12 is rotatably connected to one rotary member 20, and the other rack portion 12 is rotatably connected to the other rotary member 20. The present embodiment is not limited to the parameters such as the material, shape, and structure of the support portion 11 and the rack portion 12, and it is sufficient that the support portion 11 can fix the rack portion 12 and the rack portion 12 is rotatably connected to the rotator 20.

The synchronous function and the lifting function can be realized through the supporting part 11 and the two rack parts 12. For example, when one of the rotating members 20 rotates, the rotating member is rotatably connected to one of the rack portions 12, so that the rack portion 12 is moved, and the rotation of the rotating member 20 is converted into the movement of the rack portion 12 in a direction approaching or moving away from the flexible screen 30. Further, since one rack portion 12 is fixed to the supporting portion 11, the supporting portion 11 also fixes the other rack portion 12. Therefore, when one rack portion 12 moves, the supporting portion 11 and the other rack portion 12 can move in a direction approaching or separating from the flexible screen 30 in synchronization with the one rack portion 12, and further the flexible screen 30 is supported or the flexible screen 30 is avoided by the supporting portion 11, so that the lifting function is realized. And because the other rack part 12 is rotationally connected with the other rotating member 20, when the other rack part 12 moves, the other rotating member 20 can be driven to move, the movement of the other rack part 12 is converted back into the rotation of the other rotating member 20, and the rotating direction can be changed, so that the other rotating member 20 synchronously and reversely rotates relative to the one rotating member 20, and the synchronous function is realized.

In summary, in this embodiment, through the mutual cooperation of the rack portion 12, the supporting portion 11 and the rotating member 20, the function of lifting function on the rack portion 12 is simplified by adopting a rack transmission mode, and on the basis of the original circular motion of the rotating member 20, the supporting portion 11 is driven to realize the lifting function by utilizing the longitudinal motion of the rack portion 12 in the transmission process, and meanwhile, the synchronization function of the left and right rotating members 20 is realized.

The above description only describes how the rack portion 12, the supporting portion 11, and the rotating member 20 cooperate to achieve the synchronizing function and the elevating function, but does not describe the positional relationship of the two rotating members 20 and the two rack portions 12. The two rotating members 20 and the two rack portions 12 have various positional relationships, and the present embodiment will specifically describe the two positional relationships. In the first embodiment, as shown in fig. 2, one rotating member 20 is rotatably connected to a side of one rack portion 12 facing away from the other rack portion 12, and the other rotating member 20 is rotatably connected to a side of the other rack portion 12 facing away from the one rack portion 12. In other words, the two rotating members 20 are distant from each other compared to the two rack portions 12, or the two rack portions 12 are close to each other compared to the two rotating members 20. Or one rotating member 20 is distant from the other rack portion 12 compared to the one rack portion 12, and the other rotating member 20 is distant from the one rack portion 12 compared to the other rack portion 12. It is also understood that the two rotating members 20 are disposed at a distance, and the synchronous lifting member 10 is rotatably connected between the two rotating members 20. This facilitates the installation and removal of the synchronous lifting member 10 and the rotating member 20. In this case, the two rack portions 12 may be provided on both sides of the same projection. I.e. the support 11 is provided with a projection on one side and two rack portions 12 on opposite sides of the projection.

In the second embodiment, as shown in fig. 8, two rack portions 12 are provided at intervals, so that a gap is provided between the two rack portions 12. One rotating member 20 is rotatably connected to one side of one rack portion 12 adjacent to the other rack portion 12, and the other rotating member 20 is rotatably connected to one side of the other rack portion 12 adjacent to the one rack portion 12. In other words, the two rotating members 20 are close to each other as compared to the two rack portions 12, or the two rack portions 12 are far from each other as compared to the two rotating members 20. Or one rotating member 20 is closer to the other rotating member 20 than the one rack portion 12, and the other rotating member 20 is closer to the one rotating member 20 than the other rack portion 12. It may be also understood that the two rack portions 12 are disposed at intervals, and the portions of the two rotating members 20 are disposed between the two rack portions 12, so that the size of the rotating shaft assembly 1 can be reduced on the basis of ensuring that the two rotating members 20 are matched with the two rack portions 12, and the miniaturization of the rotating shaft assembly 1 is achieved.

In addition, the two rotating members 20 may be provided on the same side of the support portion 11 as the two rack portions 12. In other words, the two rotating members 20 and the two rack portions 12 are disposed on the same side of the supporting portion 11, so as to reduce the space occupied by the rotating shaft assembly 1 and reduce the volume of the rotating shaft assembly 1.

Referring to fig. 3 again, in the present embodiment, the rack portion 12 is provided with a plurality of first teeth 120, and the arrangement direction of the plurality of first teeth 120 is perpendicular to the plane formed by the rotation axes of the two rotating members 20. At least part of the circumference of the rotating part 21 may be provided with a plurality of second teeth 210, the rotational connection is achieved by the engagement and cooperation of the second teeth 120 with the first teeth 210, the rotational force of the rotating member 20 is transferred to the first teeth 120 through the second teeth 210, and finally to the rack part 12, and the movement of the rack part 12 is achieved. So that the rotation of the rotation member 20 can drive the movement of the synchronous lifting member 10.

Since the arrangement direction of the plurality of first teeth 120 (as shown in fig. 3D) is perpendicular to the plane formed by the rotation axes of the two rotating members 20 (the plane formed by the broken line in fig. 3), the second teeth 210 and the first teeth 120 can convert the rotation of the rotating members 20 into the movement of the synchronous lifting member 10 during the process of being engaged with each other, and the movement direction of the synchronous lifting member 10 is perpendicular to the plane formed by the rotation axes of the two rotating members 20, that is, the synchronous lifting member 10 can be lifted and lowered in the vertical direction. It is also understood that the synchronous lifting member 10 is moved up and down in a direction perpendicular to the display surface 31 of the flexible screen 30. Thus, the movement process according to the above embodiment of the present application can be realized, the moving distance of the synchronous lifter 10 can be reduced, the moving distance of the synchronous lifter 10 can be minimized, and the moving stroke of the synchronous lifter 10 can be shortened. When the spindle assembly 1 provided in this embodiment is applied to the electronic device 2, the space reserved by the electronic device 2 for moving the synchronous lifting member 10 can be reduced, so that the overall size of the electronic device 2 is reduced.

In addition, the second tooth 210 of one of the rotary members 20, when intermeshed with the first tooth 120 of one of the rack portions 12, may translate rotation of the rotary member 20 into movement of the rack portion 12. Since one rack portion 12 is fixed on the supporting portion 11, and the supporting portion 11 further fixes the other rack portion 12, when the one rack portion 12 moves, the supporting portion 11 and the other rack portion 12 can move along the direction close to or away from the flexible screen 30 in synchronization with the one rack portion 12, so as to drive the first teeth 120 on the other rack portion 12 to move up and down. The first teeth 120 on the other rack portion 12 are meshed with the second teeth 210 on the other rotating member 20, so that the movement of the synchronous lifting member 10 can be converted back into the rotation of the other rotating member 20, and the rotating direction can be changed, so that the other rotating member 20 can synchronously and reversely rotate relative to the one rotating member 20, and the synchronous function can be realized.

In the present embodiment, the synchronous function and the lifting function are realized by using the direction of the gear transmission, and the lifting movement of the synchronous lifter 10, that is, the supporting portion 11, is completely controlled by the gear. Therefore, compared with the technical scheme that the lifting function is realized by adopting the spring in the related art, if the synchronous lifting member 10 is dropped, the defect of the flexible screen 30 is damaged, the whole movement process of the synchronous supporting member in the embodiment is controllable and stable, and when the drop problem occurs, the first teeth 120 and the second teeth 210 can still be stably connected, so that the occurrence of the dislocation is prevented, the stability and the reliability of the rotating shaft assembly 1 are effectively improved, and the flexible screen 30 can be prevented from being damaged.

The above-mentioned "at least part of the circumference of the rotation member 20 is provided with the plurality of second teeth 210" is understood as that the entire circumference of the rotation member 20 is provided with the plurality of second teeth 210, or that part of the circumference of the rotation member 20 is provided with the plurality of second teeth 210, and the rest is not provided with teeth. This is because, when the rotating shaft assembly 1 of the present embodiment is applied to the electronic device 2, the rotating member 20 does not rotate one revolution (i.e. 360 °) compared to the synchronous lifting member 10, but only rotates at most half revolution (i.e. 180 °), so that the second teeth 210 are only required to be disposed on a part of the periphery of the rotating member 20. And other connection structures may be provided with portions not having teeth to connect other portions, such as intermediate portions, connection portions, etc. Here, the partial peripheral edge may be understood as at least one of a partial peripheral edge of the rotary member 20 in the circumferential direction and a partial peripheral edge of the rotary member 20 in the axial direction. In the present embodiment, only a partial circumferential edge of the rotor 20 in the axial direction and a partial circumferential edge of the rotor 20 in the axial direction are provided with the second teeth 210 are schematically described.

The first teeth 120 and the rack portion 12 may be formed integrally or separately. When the first teeth 120 and the rack portion 12 are formed as a single unit, the first teeth 120 and the rack portion 12 are manufactured by the same process. When the first tooth 120 and the rack portion 12 are in a split structure, the first tooth 120 and the rack portion 12 are prepared separately, and then the first tooth 120 is fixedly connected to the rack portion 12 by other methods, such as bonding, snap-fit connection, threaded connection, and the like. The present embodiment is schematically described with respect to a structure in which the first tooth 120 and the rack portion 12 are integrated.

The second teeth 210 and the rotating member 20 may be formed integrally or may be formed separately. When the second tooth 210 and the rotating member 20 are integrally formed, the second tooth 210 and the rotating member 20 are manufactured through the same process. When the second tooth 210 and the rotating member 20 are in a split structure, the second tooth 210 and the rotating member 20 are prepared separately, and then the second tooth 210 is fixedly connected to the rotating member 20 by other methods, such as bonding, snap-fit connection, threaded connection, etc. The present embodiment is schematically described with respect to the structure in which the second tooth 210 and the rotor 20 are integrated.

In the present embodiment, parameters such as the material, shape, and structure of the first tooth 120 and the second tooth 210 are not limited, and the first tooth 120 and the second tooth 210 may be engaged with each other to transmit force.

Referring to fig. 7 again, in the present embodiment, the rotating member 20 includes a connecting portion 22 and a rotating portion 21 connected to each other, the connecting portion 22 is used for connecting to a housing, the rotating portion 21 is circular in shape in the circumferential direction, at least a portion of the circumference of the rotating portion 21 is provided with a plurality of second teeth 210, and the tooth heights of the plurality of first teeth 120 are equal, so that the rotating member 20 can drive the synchronous lifting member 10 to move at a constant speed when rotating. The rotating portion 21 is circular in shape in the circumferential direction thereof, and the tooth heights of the plurality of first teeth 120 on the rack portion 12 are equal. In this way, the circular rotating part 21 can be matched with the rack part 12, so that the synchronous lifting member 10 moves at a uniform speed (as shown in D in fig. 7), the movement state of the synchronous lifting member 10 at any moment is ensured to be consistent, and the stability and consistency of the rotating shaft assembly 1 are improved.

Referring to fig. 9-10 together, fig. 9 is a front view of a rotating assembly according to another embodiment of the application. Fig. 10 is a front view of the rotary member of fig. 9. In the present embodiment, the rotating portion 21 has an elliptical shape in the circumferential direction thereof, and has two oppositely disposed side edges 211 divided by the major axis of the elliptical shape, and at least part of the side edges 211 is provided with the second teeth 210.

The rotating member 20 may include a connecting portion 22 and a rotating portion 21 disposed opposite to each other and connected to each other, and the rotating portion 21 is rotatably connected to the base, so as to realize rotation of the rotating member 20 relative to the base and the synchronous lifting member 10. The connection 22 is for direct or indirect connection to the housing. The connecting portion 22 and the rotating portion 21 of the two rotating members 20 have been described in detail above, and the detailed description of this embodiment is omitted here. Alternatively, the rotating portion 21 may be directly connected to the connecting portion 22, or the rotating portion 21 may be indirectly connected to the connecting portion 22, for example, the rotating member 20 may include an intermediate portion 23 that carries and connects the connecting portion 22 and the rotating portion 21, in addition to the connecting portion 22 and the rotating portion 21. The connecting portion 22 and the rotating portion 21 are connected to opposite sides of the intermediate portion 23, respectively. The intermediate portion 23 can also be understood as a connecting rod. The connecting portion 22, the rotating portion 21, and even the intermediate portion 23 may be formed as a single piece or may be formed as a split piece. When the connection portion 22, the rotation portion 21, and the intermediate portion 23 are integrally formed, the connection portion 22, the rotation portion 21, and the intermediate portion 23 are manufactured through one process. When the connection portion 22, the rotation portion 21, and the intermediate portion 23 are of a split structure, the connection portion 22, the rotation portion 21, and the intermediate portion 23 are prepared separately, and then the connection portion 22, the rotation portion 21, and the intermediate portion 23 are connected together by other methods such as bonding, snap connection, screw connection, and the like, to form the rotary 20. In the present embodiment, only the connection portion 22, the rotation portion 21, and the intermediate portion 23 are schematically described as an integral structure.

The present embodiment of the connecting portion 22 is not described in detail here. As for the rotating portion 21, the shape of the rotating portion 21 in the circumferential direction may also be elliptical in another embodiment, and thus may have two sides 211 disposed opposite to each other in the direction of the major axis of the ellipse (L in fig. 10), and the present embodiment may provide the second teeth 210 at least in part of the sides 211. Alternatively, all of the sides 211 may be provided with the second teeth 210, or a portion of the sides 211 may be provided with the second teeth 210, while the remaining sides 211 are not provided with the second teeth 210. In this embodiment, only the second teeth 210 are provided on the entire one side 211, and the second teeth 210 are not provided on the other side 211, which is used for connecting the intermediate portion 23.

When the elliptical rotation section 21 is engaged with the rack section 12, the speed of the lifting movement of the rack section 12 can be changed on the premise of the lifting movement of the rack section 12, and the lifting movement of the rack section 12 can be changed to a variable speed movement. When the edge region of the side 211 is engaged with the rack portion 12, the moving speed of the synchronous lifter 10 is high. When the middle region of the side 211 is engaged with the rack portion 12, the moving speed of the synchronous lifter 10 is slow. In other words, the speed at which the synchronous lifter 10 is moved by the middle of the side 211 is less than the speed at which the synchronous lifter 10 is moved by the edge of the side 211. In this way, the moving speed of the synchronous lifting member 10 can be adjusted according to the actual requirement of the user, so that the moving speed of the synchronous lifting member 10 can be adjusted.

Referring to fig. 11, fig. 11 is a front view of the synchronous lifter in fig. 9. In this embodiment, the plurality of first teeth 120 includes a plurality of first edge teeth 122 and a plurality of first middle teeth 121, the plurality of first edge teeth 122 are disposed on at least one side of the plurality of first middle teeth 121, and the tooth height of the first middle teeth 121 is greater than the tooth height of the first edge teeth 122.

In addition to the elliptical rotation portion 21 of the rotation portion 21, the first teeth 120 on the rack portion 12 may be designed in the present embodiment. Specifically, as can be seen from the foregoing, the plurality of first teeth 120 on the rack portion 12 are sequentially aligned along a straight line, and the alignment direction may be perpendicular to a plane formed by the rotational axis of the two rotational members 20. For the plurality of first teeth 120, a plurality of first edge teeth 122 and a plurality of first center teeth 121 may be included, depending on their location. And a plurality of first edge teeth 122 are provided on at least one side of the plurality of first center teeth 121. In other words, among the plurality of first teeth 120, the teeth located in the middle region may be referred to as first middle teeth 121, and the teeth located in the edge regions other than the middle region may be referred to as first edge teeth 122. For example, the rack portion 12 is provided with 10 first teeth 120 arranged in sequence, 4 teeth located in the middle region may be referred to as first middle teeth 121, and 6 teeth located at both sides of the middle region may be referred to as first edge teeth 122.

And the present embodiment is not limited to the number of the plurality of first edge teeth 122 and the plurality of first middle teeth 121, as long as the sum of the number of the plurality of first edge teeth 122 and the plurality of first middle teeth 121 is equal to the number of the plurality of first teeth 120. For example, the rack portion 12 is provided with 10 first teeth 120 arranged in sequence, and the number of the first middle teeth 121 may be 2, 4, 6, etc. The number of first edge teeth 122 is in turn 8, 6, 4, etc.

The above-mentioned "the plurality of first edge teeth 122 are provided on at least one side of the plurality of first middle teeth 121" is understood as that the plurality of first edge teeth 122 are provided on one side of the plurality of first middle teeth 121, or the plurality of first edge teeth 122 are provided on opposite sides of the plurality of first middle teeth 121. When the plurality of first edge teeth 122 are disposed on one side of the plurality of first middle teeth 121, the hinge assembly 1 is applied to the electronic device 2 at this time, and the electronic device 2 can be folded in or folded out separately. When the plurality of first edge teeth 122 are disposed on opposite sides of the plurality of first middle teeth 121, the rotating shaft assembly 1 is applied to the electronic device 2 at this time, so that the electronic device 2 can be folded in or folded out. Specifically, the design mode user can select according to actual requirements. The present embodiment is schematically illustrated with the plurality of first edge teeth 122 disposed on opposite sides of the plurality of first center teeth 121.

In addition, the present embodiment may make the tooth heights of the first middle teeth 121 and the first edge teeth 122 different. Where tooth height refers to the height of one tooth, i.e. the radial distance between the tip circle and the root circle. Specifically, the present embodiment may make the tooth height of the first middle tooth 121 greater than the tooth height of the first edge tooth 122. In other words, the first teeth 120 located in the middle region have a tooth height greater than that of the first teeth 120 located in the edge region. Since the shape of the rotation portion 21 is elliptical, the edge region of the side 211 is more protruded than the middle region of the side 211. Therefore, the second teeth 210 in the middle of the side 211 are meshed with the first middle teeth 121 to gradually transition to the second teeth 210 in the upper edge of the side 211 and the first edge teeth 122 to mutually mesh, so as to prevent the locking problem of the rotating member 20 and the synchronous lifting member 10 during the movement process, and ensure the minimum and stability of the movement of the rotating member 20 and the synchronous lifting member 10.

Alternatively, the tooth height gradually decreases from the first tooth 120 in the middle region to the first tooth 120 in the edge region.

Referring to fig. 9-12 together, fig. 12 is a front view of a hinge assembly in a folded state according to another embodiment of the present application. In this embodiment, the rotating shaft assembly 1 has an unfolded state when the two rotating members 20 are unfolded, and a folded state when the two rotating members 20 are close to each other, and when the rotating shaft assembly 1 is in the unfolded state, the second teeth 210 in the middle of the side edges 211 are meshed with the first middle teeth 121; when the spindle assembly 1 is in the folded state, the second teeth 210 of the side edges 211 engage with the first edge teeth 122.

Since the present application has been described in detail above in the unfolded state and the folded state of the hinge assembly 1, the description of the present embodiment is omitted here. For the second teeth 210 and the first middle teeth 121 of different areas of the side 211 of the rotating portion 21 and the first edge teeth 122 have multiple cooperating movement processes, the present embodiment can enable the second teeth 210 of the middle area of the side 211 to mesh with the first middle teeth 121 when the rotating shaft assembly 1 is in the unfolded state, as shown in fig. 9. As shown in fig. 12, when the shaft assembly 1 is in the folded state, the second teeth 210 of the edge region of the side 211 are engaged with the first edge teeth 122. Thus, when the rotation shaft assembly 1 is moved from the unfolded state to the folded state, i.e., from fig. 9 to 12, the oval-shaped rotation part 21 is gradually moved from the middle region to the edge region of the side 211, so that the moving speed of the synchronous lifter 10 is gradually increased. In other words, the movement speed of the synchronous lifter 10 is slow just at the beginning, and then the movement speed is gradually increased.

Not only the spindle assembly 1 is in motion when the electronic device 2 is in motion, but many other structures that mate directly or indirectly with the spindle assembly 1, such as track bars, rotating rods, hover structures, flexible screen 30, housing, etc. Therefore, the speed of the electronic device 2 in the initial stage of movement can be reduced, so that the situation that if the movement speed is too high and a plurality of structural members of the electronic device 2 are jammed, the plurality of structural members of the electronic device 2 are damaged is reduced. If the electronic device 2 can move smoothly in the initial stage of movement, it means that the numerous structural members in the electronic device 2 are not jammed, so that the speed can be increased in the later stage, and the movement speed of the synchronous lifting member 10 and the flexible screen 30 can be increased.

And the initial moving speed of the synchronous lifter 10 is relatively high and then gradually decreases as the rotation shaft assembly 1 moves from the folded state to the unfolded state, i.e., from fig. 12 to fig. 9. Thus, when the rotating shaft assembly 1 moves to be close to the unfolding state, the moving speed of the synchronous lifting member 10 is slowed down, the contact force between the synchronous lifting member 10 and the flexible screen 30 is reduced, the flexible screen 30 is slowly and stably contacted with the synchronous lifting member 10, the probability of damaging the flexible screen 30 by the synchronous lifting member 10 is reduced, and the service life of the flexible screen 30 is prolonged.

Of course, in other embodiments, the rotating portion 21 and the rack portion 12 may have other mating relationships, for example, when the rotating shaft assembly 1 is in the unfolded state, the second teeth 210 of the upper edge region of the side 211 mesh with the first edge teeth 122; when the spindle assembly 1 is in the folded state, the second teeth 210 of the middle region on the side 211 mesh with the first middle teeth 121. So that the synchronous lifting member 10 has a high initial speed and gradually reduces the later speed in the process of moving the rotating shaft assembly 1 from the unfolded state to the folded state.

Referring to fig. 13-15 together, fig. 13 is an exploded view of a rotor assembly according to another embodiment of the application. Fig. 14 is a schematic perspective view of a rotating member 20 according to another embodiment of the present application. Fig. 15 is a schematic view showing a partial perspective structure of a rotating shaft assembly according to another embodiment of the present application. In the present embodiment, one side of the rotating portion 21 is used for rotating the connecting base 40, the periphery of the other side of the rotating portion 21 is provided with the blocking portion 24, the plurality of second teeth 210 and the rack portion 12 are both closer to the base 40 than the blocking portion 24, and the orthographic projection of the plurality of second teeth 210 on the blocking portion 24 is located in the blocking portion 24.

The rotor 20 may be provided with a blocking portion 24 in addition to the second teeth 210, and the blocking portion 24 mainly serves to block the rack portion 12. As can be seen from the above, the rotating member 20 can rotate relative to the synchronous lifting member 10, so that one side of the rotating member 20 can be rotatably connected to the base 40 in the present embodiment, so that the rotating member 20 has a rotating carrier. Specifically, the rotating member 20 may be provided with a through hole 25, the base 40 may be provided with a rotating space 41, and then a rotating shaft (not shown) is additionally provided to pass through the through hole 25 of the rotating member 20 and be disposed in the rotating space 41 of the base 40, so that one side of the rotating portion 21 is rotatably connected to the base 40.

In the present embodiment, the blocking portion 24 may be provided on the periphery of the opposite side of the rotating portion 21. In other words, the blocking portion 24 may be protruded in the circumferential direction at the other side of the rotating portion 21. As for the positional relationship between the blocking portion 24 and the second teeth 210 and the rack portion 12, the plurality of second teeth 210 and the rack portion 12 can be located closer to the base 40 than the blocking portion 24, and the blocking portion 24 can be located farther from the base 40 than the second teeth 210 and the rack portion 12. In other words, the second tooth 210 and the rack portion 12 are located between the base 40 and the blocking portion 24. Meanwhile, the present embodiment also locates the portion of the rack portion 12 orthographically projected on the blocking portion 24 within the blocking portion 24. It is also understood that the tooth height of the second teeth 210 is not greater than the height of the blocking portion 24 in the circumferential direction of the rotary member 20, so that the orthographic projection of the plurality of second teeth 210 onto the blocking portion 24 is located within the blocking portion 24. Since the first tooth 120 on the rack portion 12 needs to be disposed between two adjacent second teeth 210, so as to achieve engagement between the first tooth 120 and the second teeth 210, a portion of the rack portion 12 that is orthographically projected on the blocking portion 24 is located in the blocking portion 24. In other words, at least a portion of the first teeth 120 on the rack portion 12 are located within the blocking portion 24.

Since the base 40 is provided on one side of the rack portion 12, the base 40 not only can serve to mount and carry the rotating member 20, but also can serve to block the rack portion 12 from being offset in a direction approaching the base 40, i.e., to limit the rack portion 12 by the base 40. And because the orthographic projection part of the rack portion 12 on the blocking portion 24 is located in the blocking portion 24, the blocking portion 24 can be used for blocking the rack portion 12 from deviating towards the direction close to the blocking portion 24, namely, the blocking portion 24 is used for limiting the rack portion 12, so that the rack portion 12 is clamped between the base 40 and the blocking portion 24, the base 40 and the blocking portion 24 are used for limiting the rack portion 12 along the axial direction of the rotating member 20, the rack portion 12 is prevented from being separated from the rotating member 20 in the moving process, and the stability of the rotating connection of the rack portion 12 and the rotating member 20 is improved.

Alternatively, the blocking portion 24 and the rotating member 20 may be integrally formed or may be separately formed. When the blocking portion 24 and the rotating member 20 are integrally formed, the blocking portion 24 and the rotating member 20 are manufactured through the same process. When the blocking portion 24 and the rotating member 20 are in a split structure, the blocking portion 24 and the rotating member 20 are prepared separately, and then the blocking portion 24 is fixedly connected to the rotating member 20 by other methods, such as bonding, snap-fit connection, threaded connection, etc. The present embodiment is schematically described with respect to a structure in which the stopper 24 and the rotator 20 are integrated.

In the present embodiment, parameters such as the material, shape, and structure of the blocking portion 24 are not limited, as long as the blocking portion 24 can perform a blocking function.

Referring to fig. 16-17 together, fig. 16 is a schematic perspective view of a rotating assembly according to another embodiment of the application. FIG. 17 is an exploded view of the spindle assembly of FIG. 16. In this embodiment, the rotating shaft assembly 1 further includes a support 50, the support 50 is provided with a guide member 51, the synchronous lifting member 10 has a guide space 123, and at least part of the guide member 51 is disposed in the guide space 123 to restrict the synchronous lifting member 10 from moving in a direction approaching or separating from the flexible screen 30.

The spindle assembly 1 may include a bracket 50 in addition to the above-mentioned structure. The bracket 50 is mainly used for carrying at least part of structural components of the spindle assembly 1, such as the rotating member 20, the synchronous lifting member 10, and even the base, all disposed on one side of the bracket 50. The rotating member 20 is rotatably coupled to a base, which may be secured to the bracket 50. And the synchronous lifting member 10 can be movably connected to the bracket 50, so that the synchronous lifting member 10 can not only realize lifting movement, but also have a certain installation foundation. In addition, the bracket 50 may also function to decorate, aesthetically present, and protect other structural components of the spindle assembly 1.

Specifically, the support 50 may be provided with a guide member 51, and the guide member 51 may be a guide post protruding on the support 50. The synchronous lifting member 10 has a guide space 123, and the guide space 123 may be a guide hole or the guide space 123 may be a guide groove. At least part of the guide member 51 is provided in the guide space 123 so that the guide member 51 not only plays a bearing and mounting role but also plays a guiding role. The synchronous lifter 10 is allowed to move in the extending direction of the guide 51. In other words, the synchronous lifter 10 is allowed to move in the axial direction of the guide 51, and the lifting movement of the synchronous lifter 10 is achieved by the lateral limitation of the guide 51 to restrict the synchronous lifter 10 from moving in the direction approaching or separating from the flexible screen 30.

Alternatively, the arrangement direction of the plurality of first teeth 120 on the rack portion 12 is parallel to the axial direction of the guide member 51, so that the problem of the synchronous lifter 10 getting stuck with the guide member 51 during movement is avoided. Further alternatively, the arrangement direction of the plurality of first teeth 120 on the rack portion 12, and the axial direction of the guide member 51 are perpendicular to a plane formed by the rotational axes of the two rotary members 20.

Alternatively, the bracket 50 and the guide 51 may be integrally formed or may be separately formed. When the bracket 50 and the guide 51 are in an integrated structure, the bracket 50 and the guide 51 are manufactured through the same process. When the bracket 50 and the guide 51 are in a split structure, the bracket 50 and the guide 51 are prepared separately, and then the bracket 50 is fixedly connected to the guide 51 by other methods such as bonding, snap-fit connection, screw connection, etc. The present embodiment is schematically described with respect to a structure in which the bracket 50 and the guide 51 are integrated.

In the present embodiment, parameters such as the material, shape, and structure of the holder 50 and the guide 51 are not limited, as long as the holder 50 can perform the function of attachment and the guide 51 can perform the function of guiding. In the present embodiment, only two guide members 51 and two guide spaces 123 are schematically described. Specifically, a guide space 123 is provided on one rack portion 12, and at least part of one guide 51 is provided in one guide space 123. The other rack portion 12 is provided with another guide space 123, and at least part of the other guide 51 is provided in the other guide space 123.

Referring to fig. 18, fig. 18 is a schematic cross-sectional view of fig. 16 along A-A in accordance with an embodiment of the present application. In the present embodiment, the minimum distance between the surface of the rack portion 12 on the side facing away from the support portion 11 and the surface of the guide 51 on the side facing away from the bracket 50 is greater than or equal to 0.5mm during the relative rotation of the two rotating members 20.

On the basis that at least part of the guide bracket 50 is arranged in the guide space 123, the rotating member 20 can drive the synchronous lifting member 10 to move when rotating. In other words, the synchronous lifter 10 may be moved closer to or farther away from the flexible screen 30, or the synchronous lifter 10 may be moved closer to or farther away from the bracket 50. The position between the synchronous lifting member 10 and the guide member 51 is changed accordingly. The synchronous lifting member 10 and the guide member 51 have various positional relationships, and in this embodiment, the minimum distance between the lower surface of the rack portion 12 and the upper surface of the guide member 51 is controlled to be within a certain range during the relative rotation of the two rotation members 20, so as to ensure that the synchronous lifting member 10 and the guide member 51 do not come off. Several of these will be specifically described in this embodiment.

As can be seen from the above, the spindle assembly 1 has two states: the folding state can be divided into inward folding movement and outward folding movement when the electronic device 2 is applied to the rotating shaft assembly 1. In the process of moving the rotating shaft assembly 1 from the folded state to the unfolded state, the synchronous lifting member 10 moves towards the direction approaching the flexible screen 30, that is, the synchronous lifting member 10 moves away from the bracket 50, so that when the rotating shaft assembly 1 moves to the unfolded state, as shown in fig. 18, the movement of the synchronous lifting member 10 in the direction away from the bracket 50 reaches the maximum. Alternatively, in the case of the folding-out movement, the synchronous lifter 10 may move in a direction approaching the flexible screen 30 during the process of moving the hinge assembly 1 from the unfolded state to the folded state, that is, the synchronous lifter 10 may move in a direction away from the stand 50, so that the movement of the synchronous lifter 10 in the direction away from the stand 50 reaches a maximum when the hinge assembly 1 moves to the folded state.

Therefore, since the folding movement modes are different, the synchronous lifting member 10 can have the maximum movement distance with the bracket 50 in the unfolded state or the folded state of the rotating shaft assembly 1, and the present embodiment can make the surface of the rack portion 12 on the side close to the bracket 50 and the surface of the guide member 51 on the side away from the bracket 50 have a certain minimum distance (as shown by H in fig. 18) on the basis of the maximum movement distance, and the minimum distance is not less than 0.5mm. In other words, as shown in fig. 18, the present embodiment can provide a certain minimum distance between the lower surface of the rack portion 12 and the upper surface of the guide 51, thereby preventing the synchronous lifter 10 from being separated from the guide 51 and improving the safety and stability of the spindle assembly 1.

In addition, the minimum distance is not less than 0.5mm, and if the minimum distance is less than 0.5mm, the synchronous lifter 10 and the guide 51 still have a risk of being separated. In some special situations, such as falling, bumping, etc., if the minimum distance is too small, the synchronous lifting member 10 and the guiding member 51 still separate. Alternatively, the distance between the surface of the rack portion 12 on the side close to the holder 50 and the surface of the guide 51 on the side away from the holder 50 is greater than or equal to 0.5mm and less than or equal to 1mm. Thereby, the minimum distance is prevented from excessively long affecting the positional relationship between the synchronous lifter 10 and the guide 51 in another state, for example, when the minimum distance is excessively long, it is possible that the guide 51 protrudes from the synchronous lifter 10 in another state to damage the flexible screen 30.

Referring to fig. 19, fig. 19 is a schematic cross-sectional view of fig. 16 along A-A according to another embodiment of the application. In the present embodiment, the support portion 11 also has a guide space 123, the rotation shaft assembly 1 has an unfolded state when the two rotation members 20 are unfolded, and a folded state when the two rotation members 20 are close to each other, and when the rack portion 12 moves toward a direction approaching the bracket 50 so that the rotation shaft assembly 1 is in the unfolded state or the folded state, a surface of the rack portion 12 on a side facing away from the bracket 50 and a surface of the guide 51 on a side facing away from the bracket 50 are disposed flush.

On the basis that at least part of the guide bracket 50 is arranged in the guide space 123, the rotating member 20 can drive the synchronous lifting member 10 to move when rotating. In other words, the synchronous lifter 10 may be moved closer to or farther away from the flexible screen 30, or the synchronous lifter 10 may be moved closer to or farther away from the bracket 50. The position between the synchronous lifting member 10 and the guide member 51 is changed accordingly. The synchronous lifting member 10 and the guide member 51 have various positional relationships, and one of them will be specifically described in this embodiment.

As can be seen from the above, the spindle assembly 1 has two states: the folding state can be divided into inward folding movement and outward folding movement when the electronic device 2 is applied to the rotating shaft assembly 1. In the case of the folding movement, the synchronous lifter 10 moves away from the flexible screen 30 during the process of moving the hinge assembly 1 from the folded state to the unfolded state, that is, the synchronous lifter 10 moves toward the direction approaching the stand 50, so that when the hinge assembly 1 moves to the unfolded state, the movement of the synchronous lifter 10 toward the direction approaching the stand 50 reaches the maximum as shown in fig. 19. Alternatively, in the case of the inward folding movement, the synchronous lifter 10 may move in a direction away from the flexible screen 30 during the movement of the hinge assembly 1 from the unfolded state to the folded state, that is, the synchronous lifter 10 may move in a direction approaching the stand 50, so that the movement of the synchronous lifter 10 in a direction away from the stand 50 reaches a maximum when the hinge assembly 1 moves to the folded state.

Therefore, due to different folding movement modes, the synchronous lifting member 10 can have a maximum movement distance with the bracket 50 when the rotating shaft assembly 1 is in the unfolded state or the folded state, and the present embodiment can enable the surface of the rack portion 12 facing away from the bracket 50 and the surface of the guide member 51 facing away from the bracket 50 to be flush on the basis of the maximum movement distance. In other words, as shown in fig. 19, the present embodiment can make the upper surface of the rack portion 12 flush with the upper surface of the guide 51. The above-mentioned guide space 123 can be understood as a guide hole, and the support portion 11 and the rack portion 12 are provided with guide holes, in other words, the guide holes penetrate through the surface of the rack portion 12 on the side close to the bracket 50 and the surface of the support portion 11 on the side away from the bracket 50. This not only improves the flatness of the surface of the synchronous lifter 10 abutting against the flexible screen 30, but also prevents the guide 51 from protruding from the support 11 to damage the flexible screen 30. It is also possible to prevent the upper surface of the guide 51 from being lower than the upper surface of the supporting portion 11, so that a pit appears on the synchronous lifting member 10, resulting in that the flexible screen 30 is not supported here, thereby affecting the performance of the flexible screen 30.

Referring to fig. 20, fig. 20 is an exploded view of a relay assembly 1 according to a further embodiment of the present application. In this embodiment, the rotating shaft assembly 1 further includes a bracket 50, and the opposite ends of the bracket 50 are provided with avoiding spaces 52, and a portion of the rotating member 20 can be disposed in the avoiding spaces 52.

The present application has been described in detail above for the bracket 50, and this embodiment will not be described in detail here. Since the two rotating members 20 are disposed on one side of the bracket 50, when the two rotating members 20 rotate toward the direction away from the bracket 50, the bracket 50 does not affect the normal rotation of the rotating members 20, and the folding-in motion can be understood at this time. However, when the two rotating members 20 are rotated toward one side close to the bracket 50, which is understood as an outward folding movement, the presence of the bracket 50 may affect the normal rotation of the rotating members 20. Therefore, the avoiding spaces 52 are provided at opposite ends of the bracket 50 in the present embodiment, so that the bracket 50 is prevented from obstructing the rotation of the rotating member 20 when the rotating member 20 is folded outwards, and the rotating member 20 can realize folding-outwards movement.

Alternatively, the avoidance space 52 may be an avoidance groove, or the avoidance space 52 may be an avoidance hole. In the present embodiment, only the escape space 52 is schematically illustrated as an escape hole. As for the size of the escape space 52, it is possible to design the angle at which the rotary member 20 rotates according to the shape of the rotary member 20, and the present embodiment is not limited thereto.

Referring to fig. 21-22 together, fig. 21 is a schematic perspective view of an electronic device according to an embodiment of the application. Fig. 22 is an exploded view of the electronic device shown in fig. 21. The present embodiment provides an electronic device 2, including a housing 60, a flexible screen 30, and a rotating member 20 of the rotating shaft assembly 1 according to the above embodiment of the present application, where the housing 60 is connected to the rotating member 20 of the rotating shaft assembly 1, and the flexible screen 30 is mounted on the housing 60.

The electronic device 2 provided in this embodiment includes, but is not limited to, mobile terminals such as mobile phones, tablet computers, notebook computers, palm top computers, personal computers (Personal Computer, PC), personal digital assistants (Personal Digital Assistant, PDA), portable media players (Portable Media Player, PMP), navigation devices, wearable devices, smart bracelets, pedometers, and fixed terminals such as digital TVs, desktop computers, and the like. The present embodiment is not limited in the type of the electronic device 2. The present embodiment will be schematically described with reference to the electronic device 2 as a mobile phone.

The electronic device 2 provided in this embodiment mainly includes a housing 60, a flexible screen 30, and a hinge assembly 1 provided in the above embodiment of the present application. The number of the housings 60 is usually two, wherein one housing 60 is connected to one rotating member 20 of the rotating shaft assembly 1, and the other housing 60 is connected to the other rotating member 20 of the rotating shaft assembly 1, so that the rotating member 20 can be driven to rotate when the housing 60 rotates, or the housing 60 can be driven to rotate when the rotating member 20 rotates. In other words, at least part of the housing 60 is disposed on the two pairs of two-sided flexible panels 30 of the hinge assembly 1 may be mounted on the housing 60. Of course, in other embodiments, the electronic device 2 may also include other structures, such as a battery, a circuit board, a camera, and so forth. These structural members may be disposed in the receiving space of the housing 60.

According to the electronic device 2 provided by the embodiment of the application, the rotating member 20 and the synchronous lifting member 10 can be utilized in the rotating shaft assembly 1 to realize the synchronous function and the lifting function, so that the structure of the electronic device 2 is simplified, the number of structural members in the electronic device 2 is reduced, the cost is reduced, and the precision is improved.

The foregoing has outlined rather broadly the more detailed description of embodiments of the application in order that the principles and embodiments of the application may be better understood, and in order that the present application may be better understood; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the idea of the present application, the present disclosure should not be construed as limiting the present application in summary.

Claims

1. The rotating shaft assembly is characterized by comprising two rotating pieces and a synchronous lifting piece which is rotationally connected with at least one of the two rotating pieces, wherein the synchronous lifting piece can support a flexible screen;

2. The spindle assembly of claim 1 wherein said spindle assembly has an extended position when two of said rotating members are extended and a collapsed position when two of said rotating members are in proximity to each other, said spindle assembly satisfying at least one of:

the synchronous lifting piece moves along the direction far away from the flexible screen in the process of the rotating shaft assembly from the unfolding state to the folding state, and moves along the direction close to the flexible screen in the process of the rotating shaft assembly from the folding state to the unfolding state;

the synchronous lifting piece moves along the direction close to the flexible screen in the process from the unfolding state to the folding state, and moves along the direction far away from the flexible screen in the process from the folding state to the unfolding state.

3. A spindle assembly as set forth in claim 1 wherein said synchronous lifting member moves in a direction perpendicular to a plane defined by the axes of rotation of both said rotating members.

4. The spindle assembly of claim 1 wherein said synchronous lifting member includes a support portion and two rack portions secured to said support portion, said support portion being capable of supporting said flexible screen, one of said rack portions being rotatably coupled to one of said rotating members and the other of said rack portions being rotatably coupled to the other of said rotating members.

5. The spindle assembly of claim 4, wherein the spindle assembly satisfies one of:

one rotating piece is rotatably connected to one side of one rack part, which is away from the other rack part, and the other rotating piece is rotatably connected to one side of the other rack part, which is away from the one rack part; or alternatively

The two rack parts are arranged at intervals, one rotating piece is rotationally connected to one side of one rack part, which is close to the other rack part, and the other rotating piece is rotationally connected to one side of the other rack part, which is close to one rack part.

6. The spindle assembly of claim 4 wherein said rack portion is provided with a plurality of first teeth aligned in a direction perpendicular to a plane defined by rotational axes of two of said rotational members.

7. The rotating shaft assembly according to claim 6, wherein the rotating member includes a connection portion and a rotating portion connected to each other, the connection portion being adapted to be connected to the housing, at least a portion of a periphery of the rotating portion being provided with a plurality of second teeth, the second teeth being engaged with the first teeth so that rotation of the rotating member can drive movement of the synchronous lifting member.

8. The spindle assembly of claim 7 wherein said rotating portion is oval in shape in a circumferential direction thereof and has two oppositely disposed sides divided by a major axis of said oval, at least a portion of said sides being provided with said second teeth.

9. The spindle assembly of claim 8 wherein the first plurality of teeth includes a first plurality of edge teeth and a first plurality of center teeth, the first plurality of edge teeth being disposed on at least one side of the first plurality of center teeth, and wherein the first center teeth have a tooth height greater than a tooth height of the first edge teeth.

10. The pivot assembly of claim 9 wherein said pivot assembly has an extended position wherein two of said rotating members are extended and a collapsed position wherein two of said rotating members are adjacent to each other, said second teeth of said side intermediate portions being engaged with said first intermediate teeth when said pivot assembly is in said extended position; the second teeth of the side edges engage the first edge teeth when the spindle assembly is in the folded condition.

11. The rotating shaft assembly according to claim 7, wherein the rotating portion has a circular shape in a circumferential direction thereof, and tooth heights of the plurality of first teeth are equal, so that the rotating member can drive the synchronous lifting member to move at a constant speed when rotating.

12. The spindle assembly of claim 7, wherein one side of the rotating portion is configured to rotate to connect to a base, a blocking portion is disposed on a periphery of the other side of the rotating portion, the plurality of second teeth and the rack portion are both closer to the base than the blocking portion, and an orthographic projection of the plurality of second teeth on the blocking portion is located in the blocking portion.

13. The spindle assembly of claim 4 further comprising a bracket having a guide member thereon, the synchronous lifting member having a guide space, at least a portion of the guide member being disposed within the guide space to constrain movement of the synchronous lifting member in a direction toward or away from the flexible screen.

14. A spindle assembly as set forth in claim 13 wherein a minimum distance between a surface of said rack portion on a side facing away from said support portion and a surface of said guide member on a side facing away from said bracket during relative rotation of said two rotating members is greater than or equal to 0.5mm.

15. The pivot assembly of claim 13 wherein opposite ends of the bracket define relief spaces, portions of the rotatable member being positionable within the relief spaces.

16. An electronic device comprising a housing, a flexible screen, and a spindle assembly according to any one of claims 1-15, the housing being coupled to the rotating member of the spindle assembly, the flexible screen being mounted to the housing.