Rotating shaft device and electronic equipment
By designing the movable connection between the sliding component and the sliding trajectory component in the rotating shaft device, the rotation angle is reduced and the displacement of the sliding component is avoided. This solves the problem of the rotating shaft device squeezing the flexible display screen during the folding process, and improves the stability and reliability of electronic devices.
Patent Information
- Application Number
- CN202411099749.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2026-02-10
AI Technical Summary
In existing hinge devices, multiple movable components during folding result in a large rotation angle, which can compress the flexible display screen and affect the stability and reliability of electronic devices.
Design a rotating shaft device that reduces the rotation angle of the first track rotating component by movably connecting the first sliding component and the first sliding track component, and avoids large instantaneous displacement of the sliding component by designing that the first direction is not parallel to the third direction, thereby increasing the gap in the folded state and preventing impact on the flexible display screen.
In the folded state, the gap between the first trajectory rotating component and the flexible display screen is reduced, which improves the structural reliability and stability of the electronic device and avoids impact problems during drops.
Smart Images
Figure CN121497722A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of folding structure technology, specifically to a rotating shaft device and electronic equipment. Background Technology
[0002] With the continuous development of display technology, various types of electronic devices have been launched. Foldable electronic devices, which combine a small overall size with a large display screen, are increasingly popular. However, to meet the folding requirements of electronic devices, the key lies in the rational design of the hinge mechanism. To achieve synchronous flipping and stable support within a limited space, multiple movable components are often required. These multiple movable components result in a larger rotation angle required for the hinge mechanism to rotate from the unfolded state to the folded state, causing the hinge mechanism to compress the flexible display screen. Summary of the Invention
[0003] On one hand, this application provides a rotating shaft device, including a base, a first rotating mechanism, and a second rotating mechanism. The first rotating mechanism and the second rotating mechanism are rotatably connected to opposite sides of the base to enable the rotating shaft device to have a folded state and an unfolded state. The first rotating mechanism includes a first trajectory rotating member, a first synchronous rotating member, a first sliding member, and a first sliding trajectory member. The first trajectory rotating member is rotatably connected to the base about a first fixed rotation axis, and the first synchronous rotating member is rotatably connected to the base about a first fixed synchronous axis. The first fixed rotation axis and the first fixed synchronous axis are parallel to each other and do not coincide. The first sliding trajectory member is rotatably connected to the end of the first trajectory rotating member away from the base. The first sliding member is connected to the end of the first sliding trajectory member away from the first trajectory rotating member, and the first sliding member can slide relative to the first sliding trajectory member along a first direction. The first sliding member is connected to the end of the first synchronous rotating member away from the base, and the first sliding member can slide relative to the first synchronous rotating member along a third direction. The projection of the first direction and the third direction onto a first plane is not parallel, and the first plane is a reference plane perpendicular to the first fixed rotation axis.
[0004] On the other hand, this application provides an electronic device, which includes a first housing, a second housing, a flexible display screen, and the aforementioned rotating shaft device, wherein the first housing is fixedly connected to the first rotating mechanism, the second housing is connected to the second rotating mechanism, and the flexible display screen continuously covers the first housing, the base, and the second housing.
[0005] The beneficial effects of the embodiments of this application are as follows:
[0006] 1. The rotating shaft device provided in this application embodiment is composed of a base, a first trajectory rotating member, a first sliding trajectory member, a first synchronous rotating member, and a first sliding member to form a moving mechanism. Since the first sliding member is movably connected to the first trajectory rotating member through the first sliding trajectory member, when the first sliding member moves, the first sliding member can rotate relative to the first trajectory rotating member and slide relative to the first trajectory rotating member. Under the condition that the rotating shaft device can switch between folded and unfolded states, the angle of rotation required by the first trajectory rotating member can be designed to be smaller. This can increase the gap between the first trajectory rotating member and the flexible display screen in the folded state and prevent the first trajectory rotating member from hitting the flexible display screen when it is dropped.
[0007] 2. In the folded state, since the first direction is not parallel to the third direction, the first sliding track component and the first synchronous rotating component restrict each other, which can effectively reduce the risk of the first sliding component undergoing a large instantaneous displacement relative to the first sliding track component or the first synchronous rotating component when it is subjected to a drop impact in this state, thereby ensuring the reliability of the overall structure of the electronic device. Attached Figure Description
[0008] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0009] Figure 1 These are schematic diagrams of the electronic devices in some embodiments of this application;
[0010] Figure 2 yes Figure 1 A schematic diagram of the rotating shaft device in the embodiment;
[0011] Figure 3 yes Figure 2 A schematic diagram of the structure of the first rotating mechanism in the embodiment;
[0012] Figure 4 yes Figure 3 An exploded view of the first rotating mechanism in the embodiment;
[0013] Figure 5 yes Figure 3 A schematic diagram illustrating the connection relationship between the first sliding track component and the first track rotating component in the embodiment;
[0014] Figure 6 yes Figure 2 A simplified kinematic diagram of the first rotating mechanism in the embodiment;
[0015] Figure 7 yes Figure 3A schematic diagram illustrating the connection relationship between the first trajectory rotating component and the first synchronous rotating component in the embodiment;
[0016] Figure 8 This is a schematic diagram of the connection relationship between the first trajectory rotating component and the first synchronous rotating component in another embodiment;
[0017] Figure 9 yes Figure 8 A simplified kinematic diagram of the first rotating mechanism in the embodiment;
[0018] Figure 10 yes Figure 2 A schematic diagram illustrating the connection relationship between the first sliding member, the first sliding trajectory member, and the first synchronous rotation member in the embodiment;
[0019] Figure 11 yes Figure 2 A cross-sectional view of the rotating shaft device in the embodiment;
[0020] Figure 12 yes Figure 2 A cross-sectional view of the rotating shaft device in another section in the embodiment. Detailed Implementation
[0021] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are for illustrative purposes only and do not limit the scope of the application. Similarly, the following embodiments are only some, not all, embodiments of the present application, and all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present application.
[0022] The terms "first," "second," and "third" used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movement of components in a specific posture (as shown in the figures). If the specific posture changes, the directional indication will also change accordingly. The terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.
[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0024] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of an electronic device in some embodiments of this application. This application provides an electronic device including a first housing 41a, a second housing 41b, a pivot device, and a flexible display screen 500. The first housing 41a and the second housing 41b are rotatably connected by the pivot device. The flexible display screen 500 can continuously cover the surfaces of the first housing 41a and the second housing 41b. When the first housing 41a and the second housing 41b are folded or unfolded with the pivot device, the flexible display screen 500 can be bent or flattened along with the first housing 41a and the second housing 41b.
[0025] The aforementioned electronic devices include, but are not limited to, mobile terminals such as mobile phones, tablets, laptops, PDAs, personal computers (PCs), personal digital assistants (PDAs), portable media players (PMPs), navigation devices, wearable devices, smart bracelets, and pedometers, as well as fixed terminals such as digital TVs and desktop computers. This embodiment is only illustrative when the electronic device is a mobile phone. Of course, in other embodiments, the electronic device can be of other types, and should also fall within the protection scope of this application.
[0026] Furthermore, the aforementioned hinge device is a folding device capable of relative rotation to achieve folding and unfolding. The hinge device provided in this embodiment can be applied to a wide variety of fields, such as door locks, vehicles, machinery, and electronic products. This embodiment only illustrates the application of the hinge device in a foldable electronic device within the field of electronic products.
[0027] Please see Figure 2 , Figure 2 yes Figure 1 A schematic diagram of the rotating shaft device in the embodiment. In some embodiments, the rotating shaft device includes a base 100, a first rotating mechanism 200a and a second rotating mechanism 200b, the first rotating mechanism 200a and the second rotating mechanism 200b being rotatably connected to opposite sides of the base 100 so that the rotating shaft device has a folded state and an unfolded state.
[0028] It is understood that in this embodiment, the first rotating mechanism 200a and the second rotating mechanism 200b may be arranged symmetrically or asymmetrically with respect to the base 100. For ease of description, this application mainly describes the first rotating mechanism 200a and the second rotating mechanism 200b as symmetrically arranged. In the following embodiments, the specific arrangement of the first rotating mechanism 200a and the connection relationship between the first rotating mechanism 200a and the base 100 are mainly used as examples to describe the rotating shaft device, while the second rotating mechanism 200b can be arranged with reference to the first rotating mechanism 200a.
[0029] The base 100 is the fundamental structural component of the rotating shaft device, primarily serving a supporting and mounting function, allowing other structural components of the rotating shaft device to be mounted on the base 100. Furthermore, in some embodiments, the base 100 can also support the flexible display screen 500. This embodiment does not limit the shape, structure, material, or other parameters of the base 100, as long as it provides an assembly base for other structural components. The flexible display screen 500 includes, but is not limited to, various flexible components, various rigid components, or other parts.
[0030] It is worth mentioning that in some scenarios, multiple first rotating mechanisms 200a and second rotating mechanisms 200b can be provided, and multiple first rotating mechanisms 200a and second rotating mechanisms 200b can all use the same base 100 as the supporting component to improve the integration of the rotating shaft device; in other scenarios, the number of first rotating mechanisms 200a, second rotating mechanisms 200b and base 100 is the same, so that each first rotating mechanism 200a and second rotating mechanism 200b uses the corresponding base 100 as the supporting component.
[0031] Please see Figure 2 The first rotating mechanism 200a includes a first trajectory rotating member 21a, a first synchronous rotating member 22a, a first sliding member 24a, and a first sliding trajectory member 25a. The first trajectory rotating member 21a is rotatably connected to the base 100 about a first fixed rotation axis 201a, and the first synchronous rotating member 22a is rotatably connected to the base 100 about a first fixed synchronous axis 202a. The first fixed rotation axis 201a and the first fixed synchronous axis 202a are parallel to each other and do not coincide.
[0032] Please see Figures 3 to 5 , Figure 3 yes Figure 2 A schematic diagram of the first rotating mechanism in the embodiment. Figure 4 yes Figure 3 An exploded view of the first rotating mechanism in the embodiment. Figure 5 yes Figure 3A schematic diagram illustrating the connection relationship between the first sliding track member and the first track rotating member in the embodiment. The first sliding track member 25a is rotatably connected to the end of the first track rotating member 21a away from the base 100. Exemplarily, the first sliding track member 25a and the first track rotating member 21a are rotatably connected by a first pin 262a. The ends of the first sliding track member 25a and the first track rotating member 21a that are connected to each other are respectively provided with first through holes 261a. The first pin 262a passes through the first through holes 261a of both the first sliding track member 25a and the first track rotating member 21a, thereby rotatably connecting the first sliding track member 25a and the first track rotating member 21a. In some embodiments, the first track rotating member 21a and the first sliding track member 25a may also adopt other rotational connection methods. For example, a pin may be fixedly provided on the first track rotating member 21a, and a pin hole may be opened at one end of the first sliding track member 25a near the first track rotating member 21a. The pin may be inserted into the pin hole to achieve rotational connection. Alternatively, a bearing may be provided between the first track rotating member 21a and the first sliding track member 25a. As long as the rotational connection relationship between the first track rotating member 21a and the first sliding track member 25a can be achieved, it is acceptable.
[0033] Please see Figure 2 as well as Figure 6 , Figure 6 yes Figure 2 A simplified kinematic diagram of the first rotating mechanism in the embodiment. The first sliding member 24a is connected to the end of the first sliding trajectory member 25a away from the first trajectory rotating member 21a, and the first sliding member 24a can slide relative to the first sliding trajectory member 25a along a first direction A1; the first sliding member 24a is connected to the end of the first synchronous rotating member 22a away from the base 100, and the first sliding member 24a can slide relative to the first synchronous rotating member 22a along a third direction A2. The projections of the first direction A1 and the third direction A2 are not parallel to the first plane C1. The first plane C1 is a reference plane perpendicular to the first fixed rotation axis 201a, and the first plane C1 is parallel to... Figure 1 The XZ plane in the middle.
[0034] Similarly, the second rotating mechanism 200b includes a second trajectory rotating member 21b, a second synchronous rotating member 22b, a second sliding member 24b, and a second sliding trajectory member 25b. The second trajectory rotating member 21b is rotatably connected to the base 100 about a second fixed rotation axis 201b, and the second synchronous rotating member 22b is rotatably connected to the base 100 about a second fixed synchronous axis 202b. The second fixed rotation axis 201b and the second fixed synchronous axis 202b are parallel to each other and do not coincide. The second sliding trajectory member 25b is rotatably connected to the second fixed rotation axis 200b. The second track rotating member 21b is located at one end away from the base 100; the second sliding member 24b is connected to the end of the second sliding track member 25b located away from the second track rotating member 21b, and the second sliding member 24b can slide relative to the second sliding track member 25b along the second direction B1; the second sliding member 24b is connected to the end of the second synchronous rotating member 22b located away from the base 100, and the second sliding member can slide relative to the second synchronous rotating member 22b along the fourth direction B2; the projections of the second direction B1 and the fourth direction B2 are not parallel to the projections of the first plane C1.
[0035] It is important to note that the rotation mentioned above can be understood as two moving parts moving in a circle around a rotation axis, while sliding can be understood as two moving parts moving in parallel, with only changes in displacement and no changes in angle. However, the fact that two moving parts can both slide and rotate means that they experience both changes in displacement and changes in angle; this combination of sliding and rotation can also be called rolling.
[0036] Based on the above connection relationship, since the first sliding member 24a is movably connected to the first track rotating member 21a through the first sliding track member 25a, when the first sliding member 24a moves, it can rotate and slide relative to the first track rotating member 21a. That is, after the first track rotating member 21a rotates 90° relative to the base 100, the first sliding member 24a can rotate a certain angle relative to it. Therefore, when the first track rotating member 21a rotates 90° relative to the base 100, the rotation angle of the first sliding member 24a relative to the base 100 is greater than 90°. Conversely, if the rotation angle of the first sliding member 24a is 90°, then the rotation angle of the first track rotating member 21a is less than 90°. Therefore, when the rotating shaft device rotates from the unfolded state to the folded state, if the required rotation angle of the first sliding member 24a is 90°, then the required rotation angle of the first track rotating member 21a is less than 90°. In this embodiment, the required rotation angle of the first trajectory rotating member 21a when the rotating shaft device rotates from the unfolded state to the folded state is 82°. A larger rotation angle of the first trajectory rotating member 21a means a smaller gap between the first trajectory rotating member 21a and the flexible display screen 500 in the folded state, making it more likely that a drop impact will cause the first trajectory rotating member 21a to collide with the flexible display screen 500, leading to problems with the flexible display screen 500. In this embodiment, while ensuring that the rotation angle of the first sliding member 24a is 90° when the rotating shaft device switches between the folded and unfolded states, the required rotation angle of the first trajectory rotating member 21a can be designed to be smaller. This increases the gap between the first trajectory rotating member 21a and the flexible display screen 500 in the folded state, preventing the first trajectory rotating member 21a from colliding with the flexible display screen 500 during a drop impact.
[0037] Furthermore, since the first direction A1 and the third direction A2 are not parallel, during the switching between the unfolded and folded states, the first sliding track member 25a and the first synchronous rotating member 22a slide relative to the first sliding member 24a in different directions through the driving movement of the first sliding member 24a. This mutual constraint prevents the first sliding member 24a from undergoing a large instantaneous displacement relative to the first sliding track member or the first synchronous rotating member 22a, thus improving the reliability of the first sliding member 24a in the event of a drop. Further, in the folded state, the first direction A1 is not parallel to the vertical direction, and the third direction A2 is not parallel to the vertical direction. This allows both the first sliding track member 25a and the first synchronous rotating member 22a to provide upward vertical support to the first sliding member 24a, preventing it from sliding downwards and ensuring the structural stability of the folded state.
[0038] In some embodiments, the first trajectory rotating member 21a and the first synchronous rotating member 22a are movably connected to form a movable mechanism with two degrees of freedom. Two methods of movably connecting the first trajectory rotating member 21a and the first synchronous rotating member 22a are described below. In the first connection method, a first connecting member 23a is added between the first trajectory rotating member 21a and the first synchronous rotating member 22a, and the first trajectory rotating member 21a and the first synchronous rotating member 22a are rotatably connected to the first connecting member 23a respectively. In the second connection method, the first trajectory rotating member 21a and the first synchronous rotating member 22a are directly and rollingly connected.
[0039] Please see Figure 6 as well as Figure 7 , Figure 7 yes Figure 3 A schematic diagram showing the connection relationship between the first trajectory rotating component and the first synchronous rotating component in the embodiment.
[0040] In the first connection method, the first trajectory rotating component 21a is rotatably connected to the first connecting component around the first movable rotation axis, and the first synchronous rotating component 22a is rotatably connected around the first movable synchronous axis. The first movable rotation axis, the first movable synchronous axis, the first fixed rotation axis 201a, and the first fixed synchronous axis 202a are parallel to each other and do not coincide. The first connecting component 23a includes a first rotating pin hole 231a and a first synchronous pin hole 232a. The first trajectory rotating component 21a is provided with a first rotating mating hole 212a at one end near the first synchronous rotating component 22a, and the first rotating mating hole 212a and the first rotating pin hole 231a are connected by a first rotating pin 234a. The first synchronous rotating component 22a is provided with a first synchronous mating hole 222a at one end near the first trajectory rotating component 21a, and the first synchronous mating hole 222a and the first synchronous pin hole 232a are connected by a first synchronous pin 233a. The axis corresponding to the first rotating pin 234a is the first movable rotating axis, and the axis corresponding to the first synchronizing pin 233a is the first movable synchronizing axis.
[0041] Similarly, a second connecting member 23b is added between the second trajectory rotating member 21b and the second synchronous rotating member 22b. The second connecting member 23b includes a second rotating pin hole 231b and a second synchronous pin hole 232b. A second rotating mating hole 212b is provided at one end of the second trajectory rotating member 21b near the second synchronous rotating member 22b. The second rotating mating hole 212b and the second rotating pin hole 231b are connected by a second rotating pin 234b. A second synchronous mating hole 222b is provided at one end of the second synchronous rotating member 22b near the second trajectory rotating member 21b. The second synchronous mating hole 222b and the second synchronous pin hole 232b are connected by a second synchronous pin 233b.
[0042] Please see Figure 6In this embodiment, when the folding device is in motion, the movable mechanism is composed of the base 100, the first trajectory rotating member 21a, the first sliding trajectory member 25a, the first synchronous rotating member 22a, the first connecting member 23a, and the first sliding member 24a. The base 100 and the first trajectory rotating member 21a, the base 100 and the first synchronous rotating member 22a, the first connecting member 23a and the first trajectory rotating member 21a, the first connecting member 23a and the first synchronous rotating member 22a, the first sliding member 24a and the first synchronous rotating member 22a, the first sliding trajectory member 25a and the first trajectory rotating member 21a, and the first sliding trajectory member 25a and the first synchronous rotating member 22a, respectively, form planar lower pair fits with a degree of freedom of 1. Taking the base 100 as the fixed component, this movable mechanism has 5 movable components, 7 planar lower pair fits with a degree of freedom of 1, and 0 planar higher pair fits with a degree of freedom of 2. According to the degree of freedom calculation formula, the degree of freedom of this movable mechanism is:
[0043] F=3n-2PL-Ph=3×5-2×7-0=1
[0044] Where n is the number of moving components, PL is the number of lower pair constraints, and Ph is the number of higher pair constraints. Since the moving mechanism has 1 degree of freedom, it can ensure the uniqueness and reliability of the motion trajectory of each moving component.
[0045] Please see Figure 8 as well as Figure 9 , Figure 8 This is a schematic diagram showing the connection relationship between the first trajectory rotating component and the first synchronous rotating component in another embodiment. Figure 9 yes Figure 8 A simplified kinematic diagram of the first rotating mechanism in the embodiment.
[0046] In the second connection method, a first rolling groove 235a and a first rolling column 236a are provided between the first trajectory rotating component 21a and the first synchronous rotating component 22a. The first rolling groove 235a is provided on one of the first trajectory rotating component 21a and the first synchronous rotating component 22a, and the first rolling column 236a is provided on the other. The first rolling column 236a is inserted into the first rolling groove 235a and rolls within it. This embodiment only uses the example of the first rolling groove 235a being fixedly provided on the first trajectory rotating component 21a and the first rolling column 236a being provided on the first synchronous rotating component 22a. The first rolling column 236a is cylindrical and can be fixedly connected to the first synchronous rotating component 22a or rotatably connected to it. In this embodiment, by simplifying the structure of the first connecting component 23a, the motion engagement between the first trajectory rotating component 21a and the first synchronous rotating component 22a can be improved while reducing the number of parts assembled and lowering costs.
[0047] Please see Figure 9 In this embodiment, when the folding device is in motion, the movable mechanism is composed of the base 100, the first trajectory rotating member 21a, the first sliding trajectory member 25a, the first synchronous rotating member 22a, and the first sliding member 24a. The base 100 and the first trajectory rotating member 21a, the base 100 and the first synchronous rotating member 22a, the first sliding member 24a and the first synchronous rotating member 22a, the first sliding trajectory member 25a and the first trajectory rotating member 21a, and the first sliding trajectory member 25a and the first synchronous rotating member 22a respectively form planar lower-pair fits with 1 degree of freedom. The first trajectory rotating member 21a and the first synchronous rotating member 22a form a planar higher-pair fit with 2 degrees of freedom. Taking the base 100 as the fixed component, this movable mechanism has 4 movable components, 5 planar lower-pair fits with 1 degree of freedom, and 1 planar higher-pair fit with 2 degrees of freedom. According to the degree-of-freedom calculation formula, the degrees of freedom of this movable mechanism are:
[0048] F=3n-2PL-Ph=3×4-2×5-1=1
[0049] Since the moving mechanism has 1 degree of freedom, it can ensure the uniqueness and reliability of the motion trajectory of each movable component.
[0050] Based on the connection between the first trajectory rotating member 21a and the first synchronous rotating member 22a, the rotating shaft device can not only be folded, but also move according to a preset folding trajectory to obtain the desired folding shape. When the first sliding member 24a rotates relative to the base 100, it drives the first synchronous rotating member 22a to rotate relative to the base 100, and simultaneously drives the first sliding trajectory member 25a and the first trajectory rotating member 21a to rotate. It can be seen that when the first sliding member 24a moves, that is, when the first sliding member 24a slides relative to the first sliding trajectory member 25a along the first direction A1 and the third direction A2 respectively relative to the first sliding trajectory member 25a and the first synchronous rotating member 22a, it generates a driving force on the first sliding trajectory member 25a and the first synchronous rotating member 22a, causing the first synchronous rotating member 22a to rotate relative to the base 100, while the first sliding trajectory member 25a drives the first trajectory rotating member 21a to rotate relative to the base 100. Furthermore, since the first trajectory rotating component 21a is movably connected to the first synchronous rotating component 22a, the degree of coordination between the movements of the first trajectory rotating component 21a and the first synchronous rotating component 22a can be improved, so that the first trajectory rotating component 21a and the first synchronous rotating component 22a mutually restrict each other and drive synchronously during the movement, ensuring the uniqueness and reliability of the movement trajectory.
[0051] Please see Figure 10 , Figure 10 yes Figure 2This embodiment illustrates the connection relationship between the first sliding member, the first sliding track member, and the first synchronous rotation member. In some embodiments, the first sliding member 24a is provided with a first sliding groove 241a along a first direction A1, and the first sliding track member 25a is provided with a first slider 251a. The first slider 251a can slide along the first sliding groove 241a, and the first sliding groove 241a and the first slider 251a are in clearance fit. It can be understood that the first sliding member 24a may include a first inner side surface 245a and a first outer side surface 246a disposed opposite to each other. The first inner side surface 245a may be the side closer to the flexible display screen 500, and the first direction A1 may be the direction from the first inner side surface 245a toward the first outer side surface 246a, or the direction from the first outer side surface 246a toward the first inner side surface 245a. Furthermore, the first slider 251a is arranged along the thickness direction of the first sliding track member 25a, and the first groove 241a passes through the first inner side surface 245a and the first outer side surface 246a of the first slider member 24a, so that the first slider 251a can partially exit or enter the first groove 241a.
[0052] Please see Figure 11 , Figure 11 yes Figure 2 The embodiment shows a cross-sectional view of the rotating shaft device in the first section. Optionally, the first slide groove 241a is a straight slide groove. When the rotating shaft device is in the folded state, the distance from the end of the first slide groove 241a near the base 100 to the second plane C2 is greater than the distance from the end of the first slide groove 241a away from the base 100 to the second plane C2. The second plane C2 is a reference plane perpendicular to the width direction of the base 100 and located in the middle of the base 100. This can improve the smoothness of the sliding of the first slider 251a along the first slide groove 241a and reduce the interference of other structures in the first rotating shaft mechanism on the movement of the first sliding trajectory member 25a.
[0053] Similarly, the second sliding member 24b is provided with a second sliding groove 241b along the second direction B1, and the second sliding track member 25b is provided with a second slider 251b (not shown in the figure). The second slider 251b can slide along the second sliding groove 241b, and the second sliding groove 241b and the second slider 251b are in clearance fit. It can be understood that the second sliding member 24b may include a second inner side 245b and a second outer side 246b disposed opposite to each other. The second inner side 245b may be the side close to the flexible display screen 500, and the second direction B1 may be the direction from the second inner side 245b toward the second outer side 246b, or the direction from the second outer side 246b toward the second inner side 245b. Furthermore, the second slider 251b is arranged along the thickness direction of the second sliding track member 25b, and the second groove 241b passes through the second inner side surface 245b and the second outer side surface 246b of the second slider member 24b, so that the second slider 251b can partially exit or enter the second groove 241b.
[0054] Optionally, the first slide groove 241a is an arc-shaped slide groove. When the rotating shaft device is in the folded state, the axis of the first slide groove 241a is located on the side of the first slide groove 241a away from the second plane C2. By setting the first slide groove 241a to an arc shape, the smoothness of the first slider 251a sliding along the first slide groove 241a can be improved.
[0055] Similarly, the second slide 241b is an arc-shaped slide. When the rotating shaft device is in the folded state, the axis of the second slide 241b is located on the side of the second slide 241b away from the second plane C2.
[0056] Please refer to it again. Figure 10 In some embodiments, the first sliding member 24a is provided with a third sliding groove 242a along a third direction A2, and the first synchronous rotating member 22a is provided with a third slider 221a. The third slider 221a can slide along the third sliding groove 242a, and the third sliding groove 242a and the third slider 221a are in clearance fit. The third direction A2 can be the direction in which the first sliding member 24a moves toward or away from the base 100. The cooperation between the third slider 221a and the third sliding groove 242a can provide guidance for the sliding between the first sliding member 24a and the first synchronous rotating member 22a. The third slider 221a can be locked in the third sliding groove 242a to prevent the first synchronous rotating member 22a from disengaging from the first sliding member 24a, thereby improving the stability of the movement of the first synchronous rotating member 22a.
[0057] Optionally, the first groove 241a and the third groove 242a are arranged at intervals on the first sliding member 24a along the length direction of the first sliding member 24a.
[0058] Please see Figure 12 , Figure 12yes Figure 2 A cross-sectional view of the rotating shaft device in another section of the embodiment. Optionally, the third slide groove 242a is a straight slide groove. When the rotating shaft device is folded, the distance from the end of the third slide groove 242a near the base 100 to the second plane C2 is greater than the distance from the end of the third slide groove 242a away from the base 100 to the bottom of the second plane C2. That is, in the folded state, the third slide groove 242a extends obliquely in the direction away from the base 100. Since the first rotating mechanism 200a can move relative to the first synchronous rotating member 22a in the direction away from the base 100 along the third direction A2 during the rotation from the unfolded state to the folded state, the first sliding member 24a is closer to the second plane C2 in the folded state.
[0059] Similarly, the fourth slide 242b is a straight slide. When the rotating shaft device is folded, the distance from the end of the fourth slide 242b near the base 100 to the second plane C2 is greater than the distance from the end of the fourth slide 242b away from the base 100 to the bottom of the second plane C2. That is, in the folded state, the fourth slide 242b extends obliquely in the direction away from the base 100. As the second rotating mechanism 200b rotates from the unfolded state to the folded state, the second sliding member 24b can move relative to the second synchronous rotating member 22b in the direction away from the base 100 along the fourth direction B2. In the folded state, the second sliding member 24b is closer to the second plane C2.
[0060] The first sliding member 24a and the second sliding member 24b are respectively fixedly connected to the first housing 41a and the second housing 41b. The first housing 41a and the second housing 41b can respectively drive the first sliding member 24a and the second sliding member 24b to rotate. In the folded state, when the first housing 41a and the second housing 41b are in contact, since the first sliding member 24a can be closer to the second plane C2 relative to the first synchronous rotating member 22a, and the second sliding member 24b can be closer to the second plane C2 relative to the second synchronous rotating member 22b, there is a clearance between the first synchronous rotating member 22a and the second synchronous rotating member 22b to avoid the first synchronous rotating member 22a and the second synchronous rotating member 22b squeezing the flexible display screen 500.
[0061] Please see Figure 11 as well as Figure 12 In some embodiments, a first arc-shaped groove 11a is provided on the base 100, and a first arc-shaped rotating block 211a is provided at one end of the first trajectory rotating member 21a near the base 100. The first arc-shaped rotating block 211a is housed within the first arc-shaped groove 11a and can rotate along the arc-shaped surface of the first arc-shaped groove 11a. The axis corresponding to the first arc-shaped groove 11a is the first fixed rotation axis 201a, which can be located inside or outside the base 100.
[0062] The first trajectory rotating component 21a can also be connected to the base 100 via a solid shaft. For example, a first fixed rotating shaft is fixedly connected to the base 100. The first fixed rotating shaft is cylindrical and has a first fixed rotating axis 201a as its center. The first trajectory rotating component 21a is sleeved on the first fixed rotating shaft and rotates around the first fixed rotating shaft.
[0063] Furthermore, the first synchronous rotating member 22a and the base 100 can also be rotatably connected to the base 100 via an arc-shaped groove and an arc-shaped rotating block or as a solid shaft, as long as the end of the first synchronous rotating member 22a near the base 100 can rotate around the first fixed synchronous axis 202a. No specific limitation is made here. In this embodiment, a first fixed synchronous axis is fixedly connected to the base 100. The first fixed synchronous axis is cylindrical and has the first fixed synchronous axis 202a as its axis. The first synchronous rotating member 22a is sleeved on the first fixed synchronous axis and rotates around it.
[0064] The above description is only a part of the embodiments of this application and does not limit the scope of protection of this application. Any equivalent device or equivalent process transformation made based on the content of this application specification and drawings, or direct or indirect application in other related technical fields, are similarly included in the patent protection scope of this application.
Claims
1. A rotating shaft device, characterized in that, The device includes a base, a first rotating mechanism, and a second rotating mechanism. The first and second rotating mechanisms are rotatably connected to opposite sides of the base to allow the rotating shaft device to have a folded state and an unfolded state. The first rotating mechanism includes a first trajectory rotating component, a first synchronous rotating component, a first sliding component, and a first sliding trajectory component. The first trajectory rotating component is rotatably connected to the base around the first fixed rotation axis, and the first synchronous rotating component is rotatably connected to the base around the first fixed synchronous axis. The first fixed rotation axis and the first fixed synchronous axis are parallel to each other and do not coincide. The first sliding track component is rotatably connected to the end of the first track rotating component away from the base; The first sliding member is connected to the end of the first sliding track member away from the first track rotating member, and the first sliding member can slide relative to the first sliding track member along a first direction; the first sliding member is connected to the end of the first synchronous rotating member away from the base, and the first sliding member can slide relative to the first synchronous rotating member along a third direction; the projection of the first direction and the third direction onto a first plane is not parallel, and the first plane is a reference plane perpendicular to the first fixed rotation axis.
2. The rotating shaft device according to claim 1, characterized in that, The first sliding member is provided with a first sliding groove along a first direction, and the first sliding track member is provided with a first slider, which can slide along the first sliding groove; The first sliding member is provided with a third sliding groove along a third direction, and the first synchronous rotating member is provided with a third slider, which can slide along the third sliding groove.
3. The rotating shaft device according to claim 2, characterized in that, The first slide is a straight slide. When the rotating shaft device is in a folded state, the distance from the end of the first slide near the base to the second plane is greater than the distance from the end of the first slide away from the base to the second plane. The second plane is a reference plane that is perpendicular to the width direction of the base and located in the middle of the base.
4. The rotating shaft device according to claim 2, characterized in that, The first slide is an arc-shaped slide. When the rotating shaft device is in a folded state, the axis of the first slide is located on the side of the first slide away from the second plane. The second plane is a reference plane that is perpendicular to the width direction of the base and located in the middle of the base.
5. The rotating shaft device according to any one of claims 1-4, characterized in that, The first rotating mechanism further includes a first connecting member, the first trajectory rotating member is rotatably connected to the first connecting member about a first movable rotating axis, the first synchronous rotating member is rotatably connected about a first movable synchronous axis, and the first movable rotating axis, the first movable synchronous axis, the first fixed synchronous axis and the first fixed rotating axis are parallel to each other and do not coincide.
6. The rotating shaft device according to claim 5, characterized in that, The first connecting member includes a first rotating pin hole and a first synchronizing pin hole. The first track rotating member has a first rotating mating hole at one end near the first synchronizing rotating member. The first rotating mating hole and the first rotating pin hole are connected by a first rotating pin. The first synchronizing rotating member has a first synchronizing mating hole at one end near the first track rotating member. The first synchronizing mating hole and the first synchronizing pin hole are connected by a first synchronizing pin.
7. The rotating shaft device according to any one of claims 1-4, characterized in that, A first rolling groove and a first rolling column are provided between the first trajectory rotating component and the first synchronous rotating component. The first rolling groove is provided in one of the first trajectory rotating component and the first synchronous rotating component, and the first rolling column is provided in the other. The first rolling column can be inserted into the first rolling groove and roll in the first rolling groove.
8. The rotating shaft device according to any one of claims 1-4, characterized in that, A first pin is provided between the first track rotating component and the first sliding track component. Both the first track rotating component and the first sliding track component are provided with a first through hole. The first pin passes through the first through hole of the first track rotating component and the first through hole of the first sliding track component.
9. The rotating shaft device according to any one of claims 1-4, characterized in that, The base is provided with a first arc-shaped groove, and the first trajectory rotating member is provided with a first arc-shaped rotating block at one end near the base. The first arc-shaped rotating block is housed in the first arc-shaped groove and can rotate along the arc surface of the first arc-shaped groove.
10. The rotating shaft device according to any one of claims 1-4, characterized in that, The second rotating mechanism includes a second trajectory rotating component, a second synchronous rotating component, a second sliding component, a second connecting component, and a second sliding trajectory component, wherein, The second trajectory rotating component is rotatably connected to the base about the second fixed rotation axis, and the second synchronous rotating component is rotatably connected to the base about the second fixed synchronous axis. The second fixed rotation axis and the second fixed synchronous axis are parallel to each other and do not coincide. The second sliding track component is rotatably connected to the end of the second track rotating component away from the base; The second slider is connected to the end of the second sliding track member away from the second track rotating member, and the second slider can slide relative to the second sliding track member along a second direction; the second slider is connected to the end of the second synchronous rotating member away from the base, and the second slider can slide relative to the second synchronous rotating member along a fourth direction; the projection of the second direction and the fourth direction onto the first plane is not parallel.
11. An electronic device, characterized in that, It includes a first housing, a second housing, a flexible display screen, and a rotating shaft device as described in any one of claims 1-10, wherein, The first housing is connected to the first rotating mechanism, the second housing is connected to the second rotating mechanism, and the flexible display screen continuously covers the first housing, the base, and the second housing.