Foldable electronic device and rotating mechanism

Abstract

Provided in the embodiments of the present application are a foldable electronic device and a rotating mechanism, which are used for solving the problem that foldable electronic devices are prone to damage during folding. The foldable electronic device comprises a first structural member, a second structural member, a third structural member, a first magnetic member and a second magnetic member; the first magnetic member is arranged on the first structural member, a first end of the first magnetic member being close to a flexible screen; the second magnetic member is arranged on the second structural member, a first end of the second magnetic member being close to the flexible screen; the polarities of the first end of the first magnetic member and the first end of the second magnetic member are the same. When the foldable electronic device is in a folded state, the first structural member, the third structural member and the second structural member are successively stacked in a second direction, and the first end of the first magnetic member and the first end of the second magnetic member are stacked in the second direction. When the first structural member of the foldable electronic device is first folded, the first end of the first magnetic member and the first end of the second magnetic member repel each other, so as to avoid a disordered folding sequence of the foldable electronic device.

Description

Folding electronic devices and rotating mechanisms

[0001] This application claims priority to Chinese Patent Application No. 202410581479.6, filed on May 10, 2024, entitled "Folding Electronic Device and Rotation Mechanism", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of electronic products, and more particularly to a folding electronic device and a rotating mechanism. Background Technology

[0003] With the continuous development of display technology, foldable display terminals are gradually becoming a development trend for future mobile electronic products. When unfolded, foldable electronic devices can achieve a larger display area, enhancing the viewing experience. When folded, they offer a smaller size, making them easy for users to carry. Foldable electronic devices can be tri-fold screen devices; however, folding and storing them may damage the electronic components. Summary of the Invention

[0004] This application provides a foldable electronic device and a rotating mechanism to improve the problem of easy damage when the foldable electronic device is folded.

[0005] To achieve the above objectives, the embodiments of this application provide the following solutions:

[0006] On one hand, a foldable electronic device is provided, including a flexible screen, a first structural member, a second structural member, a third structural member, a first rotating mechanism, a second rotating mechanism, a first magnetic member, and a second magnetic member. The first, second, and third structural members are located on the same side of the flexible screen. The first rotating mechanism is connected between the first and second structural members, and the second rotating mechanism is connected between the second and third structural members. The first magnetic member is disposed on the first structural member, with its first end closer to the flexible screen than its second end. The second magnetic member is disposed on the second structural member, with its first end closer to the flexible screen than its second end. The first ends of the first and second magnetic members have the same polarity.

[0007] When the foldable electronic device is in its flat state, the first, second, and third structural components are arranged sequentially along a first direction. These components, along with the first rotating mechanism, the second structural component, the second rotating mechanism, and the third structural component, together form a support plane for the flexible screen. During the transition from a flat to a folded state, the first structural component rotates relative to the second structural component via the first rotating mechanism, and the third structural component rotates relative to the second structural component via the second rotating mechanism. When the foldable electronic device is in its folded state, the first, third, and second structural components are stacked sequentially along a second direction. The first ends of the first magnetic component and the first ends of the second magnetic component are also stacked along the second direction, which is perpendicular to the first direction.

[0008] With the above settings, when the foldable electronic device in its flat state folds the first structural component first, the first structural component rotates relative to the second structural component through the first rotating mechanism, causing the first end of the first magnetic component and the first end of the second magnetic component to repel each other, thereby preventing the first structural component from continuing to rotate towards the second structural component. This guides the user to fold the third structural component first in the correct folding order, avoiding disordered folding order of the foldable electronic device, and thus improving the reliability of the foldable electronic device.

[0009] In some embodiments, the supporting surface of the first structural member has a first recess, and the first magnetic member is disposed within the first recess; the supporting surface of the second structural member has a second recess, and the second magnetic member is disposed within the second recess. This arrangement allows the first magnetic member to be fixedly mounted on the first structural member, which improves the connection reliability of the first magnetic member. Similarly, this arrangement allows the second magnetic member to be fixedly mounted on the second structural member, which improves the connection reliability of the second magnetic member.

[0010] In some embodiments, in the direction perpendicular to the support surface of the first structural member, the distance between the support surface of the first structural member and the flexible screen is less than or equal to the distance between the first magnetic member and the flexible screen. This arrangement prevents the first magnetic member from protruding from the support surface of the first structural member, thereby preventing the first magnetic member from pressing against the flexible screen covering the first structural member, which helps improve the reliability of the flexible screen. And / or, in the direction perpendicular to the support surface of the second structural member, the distance between the support surface of the second structural member and the flexible screen is less than or equal to the distance between the second magnetic member and the flexible screen. This arrangement prevents the second magnetic member from protruding from the support surface of the second structural member, thereby preventing the second magnetic member from pressing against the flexible screen covering the second structural member, which helps improve the reliability of the flexible screen.

[0011] In some embodiments, a third magnetic element and a fourth magnetic element are also included. The third magnetic element is disposed on the second structural element, with its first end closer to the flexible screen than its second end. The fourth magnetic element is disposed on the third structural element, with its first end closer to the flexible screen than its second end. The first ends of the third and fourth magnetic elements have opposite polarities. When the foldable electronic device is in a folded state, the first ends of the third and fourth magnetic elements are stacked along a second direction.

[0012] With the above settings, when the foldable electronic device in its flat state folds the third structural component first, the third structural component rotates relative to the second structural component through the second rotating mechanism, causing the first end of the third magnetic component and the first end of the fourth magnetic component to attract each other. This guides the third structural component to continue rotating towards the second structural component, guiding the user to fold the third structural component first in the correct folding order, avoiding disordered folding order of the foldable electronic device, and thus improving the reliability of the foldable electronic device.

[0013] In some embodiments, the third magnetic element is reused as the second magnetic element. This arrangement helps reduce the number of magnetic elements in the foldable electronic device, lowers the manufacturing cost, and improves the mechanical reliability of the foldable electronic device.

[0014] In some embodiments, a fifth magnetic element and a sixth magnetic element are also included. The fifth magnetic element is disposed on the first structural element, with its first end closer to the flexible screen than its second end. The sixth magnetic element is disposed on the third structural element, with its first end farther from the flexible screen than its second end. The first ends of the fifth and sixth magnetic elements have opposite polarities. When the foldable electronic device is in a folded state, the first ends of the sixth and fifth magnetic elements are stacked along a second direction.

[0015] With the above configuration, in its flat state, the foldable electronic device first folds the third structural component, then the third and second structural components are stacked along the second direction, while the first and second structural components are arranged along the first direction. When further folding the first structural component, rotating it relative to the second structural component via the first rotating mechanism causes the first ends of the fifth and sixth magnetic components to attract each other, thereby guiding the first structural component to continue rotating closer to the second structural component. This guides the user to fold the first structural component after folding the third structural component, preventing misfolding and improving the reliability of the foldable electronic device.

[0016] In some embodiments, the first rotating mechanism includes: a main shaft assembly, a first rotating shaft member, and a second rotating shaft member. The first ends of the main shaft assembly and the first rotating shaft member are rotatably connected, and the first ends of the main shaft assembly and the second rotating shaft member are rotatably connected. A first structural member is connected to the second end of the first rotating shaft member, and the second structural member is connected to the second end of the second rotating shaft member. The main shaft assembly includes a main shaft, a mating slider, and an elastic body. The mating slider is slidably connected to the main shaft along a third direction. Along this third direction, the first ends of both the first and second rotating shaft members are in contact with the first ends of the mating slider, and the second end of the mating slider is in contact with the elastic body. The elastic body is disposed on the main shaft along a third direction, which is the extension direction of the main shaft.

[0017] When the first rotating mechanism is in a flat state, the first rotating shaft, the main shaft assembly, and the second rotating shaft together form the support surface of the first rotating mechanism, and the dimension of the elastic body along the third direction is the first length. During the transition of the first rotating mechanism from the flat state to the folded state, the first rotating shaft rotates relative to the main shaft assembly, the second rotating shaft rotates relative to the main shaft assembly, and the slider slides relative to the main shaft along the third direction. When the first rotating mechanism is in the folded state, the dimension of the elastic body along the third direction is the second length, which is less than the first length.

[0018] With the above configuration, the first rotating mechanism transitions from a folded state to a flat state. The first and second rotating shafts drive the mating slider to slide relative to the main shaft assembly along a third direction. The mating slider drives the elastic element to compress and deform along the third direction, causing the dimension of the elastic element along the third direction to change from a first length to a second length. At this time, the elastic force of the elastic element can act as a damping force. As the first rotating mechanism transitions from a folded state to a flat state, the mating slider, driven by the elastic restoring force of the elastic element, slides relative to the main shaft assembly along a third direction. The mating slider can drive the first rotating shaft to rotate relative to the main shaft assembly, and the mating slider can drive the second rotating shaft to rotate relative to the main shaft assembly. At this time, the elastic force of the elastic element can achieve a self-opening effect.

[0019] In some embodiments, the first end of the first rotating shaft includes a first mating surface, and the first end of the mating slider includes a second mating surface. The first end of the first rotating shaft and the first end of the mating slider are in contact through the first and second mating surfaces. Both the first and second mating surfaces intersect with a first direction, and both intersect with a third direction. The first end of the second rotating shaft includes a third mating surface, and the mating slider includes a fourth mating surface. The first end of the second rotating shaft and the first end of the mating slider are in contact through the third and fourth mating surfaces. Both the third and fourth mating surfaces intersect with a first direction, and both intersect with a third direction.

[0020] When the first rotating mechanism is in a flat state, there is a first contact area between the first and second mating surfaces, and a second contact area between the third and fourth mating surfaces. During the transition from the flat state to the folded state, the first mating surface slides relative to the second mating surface, and the third mating surface slides relative to the fourth mating surface. When the first rotating mechanism is in the folded state, there is a third contact area between the first and second mating surfaces, and a fourth contact area between the third and fourth mating surfaces. The third contact area is smaller than the first contact area, and the fourth contact area is smaller than the third contact area.

[0021] With the above configuration, the first rotating mechanism transitions from a folded state to a flat state. Driven by the elastic restoring force of the elastic element, the sliding block slides relative to the main shaft assembly in a third direction. At this time, the portion of the first end of the first rotating shaft within the first arc-shaped groove gradually increases; the portion of the first end of the second rotating shaft within the second arc-shaped groove also gradually increases. This increases the contact area between the sliding block and the first rotating shaft, and the contact area between the sliding block and the second rotating shaft, further driving the first rotating shaft to rotate relative to the main shaft assembly, and further driving the second rotating shaft to rotate relative to the main shaft assembly.

[0022] On the other hand, embodiments of this application also provide a rotating mechanism, including: a main shaft assembly, a first rotating shaft, and a second rotating shaft. The main shaft assembly is rotatably connected to a first end of the first rotating shaft, and the main shaft assembly is also rotatably connected to a first end of the second rotating shaft. The main shaft assembly includes a main shaft, a mating slider, and an elastic body. The mating slider is slidably connected to the main shaft along a third direction. The first ends of both the first and second rotating shafts are in contact with the first ends of the mating slider. The second end of the mating slider is connected to the elastic body, which is disposed on the main shaft along a third direction, the extension direction of the main shaft.

[0023] When the rotating mechanism is in its flat state, the first rotating shaft, the main shaft assembly, and the second rotating shaft together form the support surface of the rotating mechanism, and the dimension of the elastic body along the third direction is the first length. During the transition of the rotating mechanism from the flat state to the folded state, the first rotating shaft rotates relative to the main shaft assembly, the second rotating shaft rotates relative to the main shaft assembly, and the slider slides relative to the main shaft along the third direction. When the rotating mechanism is in the folded state, the dimension of the elastic body along the third direction is the second length, which is less than the first length.

[0024] On the other hand, embodiments of this application also provide a foldable electronic device, including a flexible screen, a first structural member, a second structural member, and a rotating mechanism as described in the above embodiments. The first structural member and the second structural member are located on the same side of the flexible screen; the rotating mechanism is connected between the first structural member and the second structural member.

[0025] The folding electronic device provided in the embodiments of this application includes the rotation mechanism as described above, and therefore has all the above-described beneficial effects, which will not be repeated here. Attached Figure Description

[0026] Figure 1 is a structural diagram of a foldable electronic device in a flat state according to an embodiment of this application;

[0027] Figure 2 is a structural diagram of a foldable electronic device provided in an embodiment of this application after only the third structural component is folded;

[0028] Figure 3 is a structural diagram of a foldable electronic device in a folded state according to an embodiment of this application;

[0029] Figure 4 is an exploded view of the assembly structure of the first structural component, the first magnetic component, and the fifth magnetic component in a foldable electronic device according to an embodiment of this application;

[0030] Figure 5 is an exploded view of the assembly structure of a second structural component and a second magnetic component (or a second structural component and a third magnetic component) in a foldable electronic device according to an embodiment of this application.

[0031] Figure 6 is a cross-sectional view of the folding electronic device in Figure 3 along section line AA;

[0032] Figure 7 is a partial enlarged view of the foldable electronic device M1 in Figure 6;

[0033] Figure 8 is an exploded view of the assembly structure of the third structural component and the fourth magnetic component in a foldable electronic device according to an embodiment of this application;

[0034] Figure 9 is an exploded view of the assembly structure of the third structural component and the sixth magnetic component in a foldable electronic device according to an embodiment of this application;

[0035] Figure 10 is a cross-sectional view of the folding electronic device in Figure 3 along the BB section line;

[0036] Figure 11 is a partial enlarged view of the foldable electronic device M2 in Figure 10;

[0037] Figure 12 is an assembly structure diagram of a first structural component, a first rotating mechanism, and a second structural component provided in an embodiment of this application;

[0038] Figure 13 is an exploded view of the assembly structure of a first structural component, a first rotating mechanism, and a second structural component provided in an embodiment of this application;

[0039] Figure 14 is a partial enlarged view of the first rotating mechanism M3 in Figure 12, where the main inner shaft is omitted;

[0040] Figure 15 is an exploded view of the first rotating mechanism in Figure 14, omitting the main inner shaft.

[0041] Figure 16 is an exploded view of an assembly structure of a first rotating shaft, a mating slider, and a second rotating shaft provided in an embodiment of this application;

[0042] Figure 17 is a cross-sectional view of the first rotating mechanism in Figure 14 in its flat state along the CC section line;

[0043] Figure 18 is a cross-sectional view of the first rotating mechanism in Figure 14 during the transition from the flat state to the folded state, along the CC section line.

[0044] Figure 19 is a cross-sectional view of the first rotating mechanism in the folded state in Figure 14 along the CC section line.

[0045] In the diagram: X, first direction; Y, second direction; Z, third direction; 10, first structural component; 20, second structural component; 30, third structural component; 40, first rotating mechanism; 50, second rotating mechanism; 90, flexible screen; 11, first magnetic component; 21, second magnetic component; 22, third magnetic component; 31, fourth magnetic component; 12, fifth magnetic component; 32, sixth magnetic component; 11a, first end of the first magnetic component; 11b, second end of the first magnetic component; 21a, the first... 21b, the first end of the second magnetic component; 22a, the first end of the third magnetic component; 22b, the second end of the third magnetic component; 31a, the first end of the fourth magnetic component; 31b, the second end of the fourth magnetic component; 12a, the first end of the fifth magnetic component; 12b, the second end of the fifth magnetic component; 32a, the first end of the sixth magnetic component; 32b, the second end of the sixth magnetic component; 101, the supporting surface of the first structural component; 201, the supporting surface of the second structural component; 102 101. First recess; 202. Second recess; 203. Third recess; 301. Support surface of the third structural component; 302. Fourth recess; 103. Fifth recess; 304. Sixth recess; 303. Outer surface of the third structural component; 43. Spindle assembly; 41. First rotating shaft; 42. Second rotating shaft; 41a. First end of the first rotating shaft; 41b. Second end of the first rotating shaft; 42a. First end of the second rotating shaft; 42b. Second end of the second rotating shaft. ; 431, Main outer shaft; 432, Main inner shaft; 433, First arc-shaped slide groove; 435, Second arc-shaped slide groove; 413, First arc-shaped slider; 423, Second arc-shaped slider; 436, Mating slider; 437, Elastic body; 434, Synchronous gear; 438, First rack; 439, Second rack; 4311, Receiving groove; 4312, Mating slide groove; 419, First mating surface; 429, Second mating surface; 4361, Third mating surface; 4362, Fourth mating surface. Detailed Implementation

[0046] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0047] In the following description, the terms "first," "second," etc., are used for ease of description only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more.

[0048] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0049] In the embodiments of this application, the directional indications used to explain the structure and movement of different components, such as up, down, left, right, front, and back, are relative. These indications are appropriate when the components are in the positions shown in the figures. However, if the description of the component positions changes, these directional indications will also change accordingly.

[0050] This application provides a foldable electronic device. The foldable electronic device can be a mobile phone, tablet computer, television, smart wearable products (e.g., smartwatch, smart bracelet), or other terminal products.

[0051] To facilitate understanding of the foldable electronic device 1 provided in this application embodiment, Figure 1 is a structural diagram of the foldable electronic device in a flat state according to an embodiment of this application; Figure 2 is a structural diagram of the foldable electronic device after only folding the third structural component according to an embodiment of this application; Figure 3 is a structural diagram of the foldable electronic device in a folded state according to an embodiment of this application. The dashed lines in Figures 1, 2, and 3 are used to indicate the placement position of the flexible screen; the foldable electronic device 1 is described below with reference to Figures 1, 2, and 3:

[0052] The foldable electronic device 1 includes a flexible screen 90. This flexible screen 90 can be an active matrix organic light-emitting diode (AMOLED) display. As a self-emissive display, AMOLED does not require a backlight module (BLM). Therefore, when the substrate of the AMOLED display is made of a flexible resin material, such as polyethylene terephthalate (PET), the AMOLED display can have bendable characteristics.

[0053] In addition, the foldable electronic device 1 also includes a first rotating mechanism 40, a second rotating mechanism 50, a first structural member 10, a second structural member 20, and a third structural member 30 for supporting the flexible screen 90. The first rotating mechanism 40 is connected between the first structural member 10 and the second structural member 20. The second rotating mechanism 50 is connected between the second structural member 20 and the third structural member 30. The first structural member 10, the second structural member 20, and the third structural member 30 are used to support the flexible screen 90, so that the flexible screen 90 remains as flat as possible during use and to protect the non-display surface of the flexible screen 90. The first structural member 10 and the second structural member 20 can rotate relative to the first rotating mechanism 40, and the second structural member 20 and the third structural member 30 can rotate relative to the second rotating mechanism 50, respectively.

[0054] This application embodiment only briefly illustrates some of the structures of the first structural member 10, the second structural member 20, and the third structural member 30, and the accompanying drawings are also simplified. This application embodiment does not strictly limit the specific structures of the first structural member 10, the second structural member 20, and the third structural member 30.

[0055] The first structural component 10, the second structural component 20, and the third structural component 30 may each include a mid-frame structure and a decorative panel. The decorative panel may be located on the side of the mid-frame structure opposite to the flexible screen 90, and is used to present part of the appearance of the foldable electronic device. The space enclosed by the decorative panel and the mid-frame structure is used to install and fix other components of the foldable electronic device, such as a camera, earphone, earpiece, buttons, and battery. In addition, other electronic components may also be provided on the first structural component 10, the second structural component 20, and the third structural component 30. This application embodiment does not limit the other electronic components provided on the first structural component 10, the second structural component 20, and the third structural component 30.

[0056] For example, the flexible screen 90 is located on the same side of the first structural member 10, the second structural member 20, and the third structural member 30. A portion of the flexible screen 90 can be fixed to the first structural member 10, the second structural member 20, and the third structural member 30 by an adhesive layer. A portion of the flexible screen 90 can also be fixed to the first rotating mechanism 40 and the second rotating mechanism 50 by an adhesive layer. This adhesive layer can be a thin film layer formed after applying adhesive, and the specific form of the adhesive layer is not limited in this embodiment. For example, the adhesive layer can be an intermittent thin film layer, or it can be a continuous thin film layer.

[0057] For ease of explanation, when the foldable electronic device 1 is in a flat state, the arrangement direction of the first structural member 10, the second structural member 20 and the third structural member 30 is defined as the first direction X, the thickness direction of the second structural member 20 is defined as the second direction Y, and the extension direction of the first rotating mechanism 40 is defined as the third direction Z. The second direction Y is perpendicular to the first direction X, and the third direction Z is perpendicular to the plane containing the first direction X and the second direction Y.

[0058] As shown in Figure 1, when the foldable electronic device 1 is in a flat state, the first structural member 10, the second structural member 20, and the third structural member 30 are arranged sequentially along the first direction X. For example, the included angles between the first structural member 10 and the second structural member 20, and between the second structural member 20 and the third structural member 30, can be approximately 180° (understandably, the included angles between the first structural member 10 and the second structural member 20, and between the second structural member 20 and the third structural member 30, are also allowed to have certain deviations, for example, the included angles can be 165°, 177°, or 185°).

[0059] The first structural member 10, the first rotating mechanism 40, the second structural member 20, the second rotating mechanism 50, and the third structural member 30 together form a supporting plane. This supporting plane can be used to support the flexible screen 90, improving the flatness of the flexible screen 90 in its unfolded state. Here, "supporting plane" can be understood as a plane or an approximate plane. A plane can be a surface parallel to the first direction X and the second direction Y, while an approximate plane can be a slightly undulating surface, and the acceptable deviation range of the approximate plane can be, for example, within 5%.

[0060] In some embodiments, the flexible screen 90 can be fixed to the first structural member 10, the first rotating mechanism 40, the second structural member 20, the second rotating mechanism 50, and the third structural member 30 by an adhesive layer. The support effect of the first structural member 10, the first rotating mechanism 40, the second structural member 20, the second rotating mechanism 50, and the third structural member 30 on the flexible screen 90 can be adjusted by adjusting the thickness of the adhesive layer so that the first structural member 10, the first rotating mechanism 40, the second structural member 20, the second rotating mechanism 50, and the third structural member 30 together form a support plane, thereby ensuring that the flexible screen 90 is in a flat state when unfolded. In this case, "together forming a supporting plane N" can also be understood as adjusting the thickness of the adhesive layer so that the first structural member 10, the first rotating mechanism 40, the second structural member 20, the second rotating mechanism 50, and the third structural member 30 together form a supporting plane, thereby ensuring that the flexible screen 90 is in a flat state when unfolded.

[0061] When the foldable electronic device 1 transitions from a flat state to a folded state, the first structural member 10 rotates relative to the second structural member 20 via the first rotating mechanism 40, and the third structural member 30 rotates relative to the second structural member 20 via the second rotating mechanism 50.

[0062] As shown in Figures 1 and 2, in the actual use of the foldable electronic device 1, the third structural component 30 needs to be rotated counterclockwise relative to the second structural component 20 via the second rotating mechanism 50 (direction A1 in Figure 1) to fold the third structural component 30 first. As shown in Figure 2, after folding the third structural component 30, the third structural component 30 and the second structural component 20 are stacked along the second direction Y, and the first structural component 10 and the second structural component 20 are arranged along the first direction X. As shown in Figures 2 and 3, after folding the third structural component 30, the first structural component 10 is rotated clockwise relative to the second structural component 20 via the first rotating mechanism 40 (direction A2 in Figure 2) to fold the first structural component 10. As shown in Figure 3, after folding the first structural component 10, the first structural component 10, the third structural component 30, and the second structural component 20 are stacked sequentially along the second direction Y.

[0063] The folding electronic device 1 has a fixed folding sequence when transitioning from a flat state to a folded state. For example, in the folding electronic device 1 of the above embodiment, the third structural member 30 needs to be folded first, and then the first structural member 10 needs to be folded. When the folding sequence of the folding electronic device 1 is disordered, such as when the folding electronic device 1 folds the first structural member 10 first in the above embodiment, it may cause the first rotating mechanism 40 to jam or cause damage to the flexible screen 90, thereby reducing the reliability of the folding electronic device 1.

[0064] In view of this, as shown in FIG1, the embodiments of this application further include a first magnetic element 11 and a second magnetic element 21, the first magnetic element 11 being disposed on the first structural element 10, and the second magnetic element 21 being disposed on the second structural element 20.

[0065] Figure 4 is an exploded view of the assembly structure of a first structural component, a first magnetic component, and a fifth magnetic component in a foldable electronic device according to an embodiment of this application; Figure 5 is an exploded view of the assembly structure of a second structural component and a second magnetic component (or a second structural component and a third magnetic component) in a foldable electronic device according to an embodiment of this application. Referring to Figures 1, 4, and 5, the first end 11a of the first magnetic component is closer to the flexible screen 90 than the second end 11b of the first magnetic component, and the first end 21a of the second magnetic component is closer to the flexible screen 90 than the second end 21b of the second magnetic component.

[0066] In this embodiment, both the first magnetic element 11 and the second magnetic element 21 can be magnets. For example, the first magnetic element 11 and the second magnetic element 21 can be bar magnets. The direction from the first end 11a of the first magnetic element to the second end 11b of the first magnetic element can be perpendicular to the support surface 101 of the first structural member, and the direction from the first end 21a of the second magnetic element to the second end 21b of the second magnetic element can be perpendicular to the support surface 201 of the second structural member. In some other embodiments, the first magnetic element 11 and the second magnetic element 21 can also be other magnetic objects; this application does not specifically limit this. Furthermore, in this application embodiment, the number of first magnetic elements 11 can be one or more, and the number of second magnetic elements 21 can also be one or more; this application does not specifically limit this.

[0067] Figure 6 is a cross-sectional view of the foldable electronic device in Figure 3 along section line AA. Further, referring to Figure 6, when the foldable electronic device 1 is in a folded state, the first end 11a of the first magnetic element and the first end 21a of the second magnetic element are stacked along the second direction Y. Here, the stacking of the first end 11a of the first magnetic element and the first end 21a of the second magnetic element can be understood as at least a portion of the first end 11a of the first magnetic element and at least a portion of the first end 21a of the second magnetic element being stacked along the second direction Y. For example, the orthographic projection of the first magnetic element 11 onto the third structural member 30 may at least partially coincide with the orthographic projection of the second magnetic element 21 onto the third structural member 30. Through the above arrangement, the magnetic field of the first end 11a of the first magnetic element and the magnetic field of the first end 21a of the second magnetic element can influence each other.

[0068] In this embodiment, the first end 11a of the first magnetic element and the first end 21a of the second magnetic element have the same polarity. For example, the polarity of the first end 11a of the first magnetic element can be S (south pole), and the polarity of the first end 21a of the second magnetic element can also be S; or, the polarity of the first end 11a of the first magnetic element can be N (north pole), and the polarity of the first end 21a of the second magnetic element can also be N. With the above configuration, when the folding electronic device 1 in its flat state folds the first structural member 10 first, the first structural member 10 rotates relative to the second structural member 20 via the first rotating mechanism 40, causing the first end 11a of the first magnetic element and the first end 21a of the second magnetic element to repel each other, thereby preventing the first structural member 10 from continuing to rotate closer to the second structural member 20. This guides the user to fold the third structural member 30 first in the correct folding order, avoiding misfolding of the folding order of the folding electronic device 1, and thus improving the reliability of the folding electronic device 1.

[0069] In some embodiments, continuing to refer to FIG4, the support surface 101 of the first structural member may have a first recess 102, and the first magnetic member 11 may be disposed within the first recess 102. For example, the first recess 102 may be generally a rectangular groove, and the first magnetic member 11 may be adhered to the rectangular groove. This arrangement allows the first magnetic member 11 to be fixedly mounted on the first structural member 10, which helps improve the connection reliability of the first magnetic member 11. Similarly, continuing to refer to FIG5, the support surface 201 of the second structural member may have a second recess 202, and the second magnetic member 21 may be disposed within the second recess 202. For example, the second recess 202 may be generally a rectangular groove, and the second magnetic member 21 may be adhered to the rectangular groove. This arrangement allows the second magnetic member 21 to be fixedly mounted on the second structural member 20, which helps improve the connection reliability of the second magnetic member 21.

[0070] Of course, in some other embodiments, the first magnetic element 11 may also be disposed on the first structural element 10 in other ways, and the second magnetic element 21 may also be disposed on the second structural element 20 in other ways. This application embodiment does not impose specific limitations on this.

[0071] Figure 7 is a partial enlarged view of the foldable electronic device M1 in Figure 6. In some embodiments, referring to Figure 7, in the direction perpendicular to the support surface 101 of the first structural member, the distance D1 between the support surface 101 of the first structural member and the flexible screen 90 is less than or equal to the distance D2 between the first magnetic member 11 and the flexible screen 90. For example, as shown in Figure 4, the first magnetic member 11 is located within the first recess 102, and in the direction perpendicular to the support surface 101 of the first structural member, the size of the first magnetic member 11 can be smaller than the size of the first recess 102. With the above arrangement, the first magnetic member 11 can be prevented from protruding from the support surface 101 of the first structural member, thereby preventing the first magnetic member 11 from pressing against the flexible screen 90 covering the first structural member 10, which helps to improve the reliability of the flexible screen 90.

[0072] In some embodiments, continuing to refer to FIG7, in the direction perpendicular to the support surface 201 of the second structural member, the distance D3 between the support surface 201 of the second structural member and the flexible screen 90 is less than or equal to the distance D4 between the second magnetic member 21 and the flexible screen 90. For example, as shown in FIG5, the second magnetic member 21 is located within the second recess 202, and in the direction perpendicular to the support surface 201 of the second structural member, the size of the second magnetic member 21 can be smaller than the size of the second recess 202. With the above arrangement, the second magnetic member 21 can be prevented from protruding from the support surface 201 of the second structural member, thereby preventing the second magnetic member 21 from pressing against the flexible screen 90 covering the second structural member 20, which is beneficial to improving the reliability of the flexible screen 90.

[0073] Figure 8 is an exploded view of the assembly structure of the third structural component and the fourth magnetic component in a foldable electronic device according to an embodiment of this application. In some embodiments, referring to Figures 1, 5, and 8, the foldable electronic device 1 may further include a third magnetic component 22 and a fourth magnetic component 31. The third magnetic component 22 is disposed on the second structural component 20, and the first end 22a of the third magnetic component is closer to the flexible screen 90 than the second end 22b of the third magnetic component. The fourth magnetic component 31 is disposed on the third structural component 30, and the first end 31a of the fourth magnetic component is closer to the flexible screen 90 than the second end 31b of the fourth magnetic component.

[0074] In this embodiment, both the third magnetic element 22 and the fourth magnetic element 31 can be magnets. For example, the third magnetic element 22 and the fourth magnetic element 31 can be bar magnets. The direction from the first end 22a of the third magnetic element to the second end 31b of the fourth magnetic element can be perpendicular to the support surface 201 of the second structural member, and the direction from the first end 31a of the fourth magnetic element to the second end 31b of the fourth magnetic element can be perpendicular to the support surface 301 of the third structural member. Further, in this embodiment, the number of third magnetic elements 22 can be one or more, and the number of fourth magnetic elements 31 can also be one or more; this embodiment does not specifically limit this. In some other embodiments, the third magnetic element 22 and the fourth magnetic element 31 can also be other magnetic objects; this embodiment does not specifically limit this.

[0075] Referring to Figure 6, when the foldable electronic device 1 is in a folded state, the first end 22a of the third magnetic element and the first end 31a of the fourth magnetic element are stacked along the second direction Y. Here, the stacking of the first end 22a of the third magnetic element and the first end 31a of the fourth magnetic element can be understood as at least a portion of the first end 22a of the third magnetic element and at least a portion of the first end 31a of the fourth magnetic element being stacked along the second direction Y. For example, the orthographic projection of the third magnetic element 22 onto the third structural member 30 may at least partially coincide with the orthographic projection of the fourth magnetic element 31 onto the third structural member 30. This arrangement allows the magnetic fields of the first end 22a of the third magnetic element and the first end 31a of the fourth magnetic element to influence each other.

[0076] In this embodiment, the first end 22a of the third magnetic element and the first end 31a of the fourth magnetic element have opposite polarities. For example, the first end 22a of the third magnetic element can be an S pole, and the first end 31a of the fourth magnetic element can be an N pole; or, the first end 22a of the third magnetic element can be an N pole, and the first end 31a of the fourth magnetic element can be an S pole. With this configuration, when the folding electronic device 1 in its flat state folds the third structural member 30 first, the third structural member 30 rotates relative to the second structural member 20 via the second rotating mechanism 50, causing the first end 22a of the third magnetic member and the first end 31a of the fourth magnetic member to attract each other. This guides the third structural member 30 to continue rotating closer to the second structural member 20, guiding the user to fold the third structural member 30 in the correct folding order, avoiding incorrect folding order of the folding electronic device 1, and thus improving the reliability of the folding electronic device 1.

[0077] For example, continuing to refer to Figure 5, the support surface 201 of the second structural member may be provided with a third recess 203, and the third magnetic member 22 may be adhered to the third recess 203. Continuing to refer to Figure 8, the support surface 301 of the third structural member may be provided with a fourth recess 302, and the fourth magnetic member 31 may be adhered to the fourth recess 302. Through the above arrangements, the third magnetic member 22 and the fourth magnetic member 31 can be fixed on the second structural member 20. Of course, the third magnetic member 22 can also be disposed on the second structural member 20 in other ways, and the fourth magnetic member 31 can also be disposed on the third structural member 30 in other ways; this application embodiment does not specifically limit these aspects.

[0078] Further, referring to Figure 7, in the direction perpendicular to the support surface 201 of the second structural member, the distance D3 between the support surface 201 of the second structural member and the flexible screen 90 is less than or equal to the distance D4 between the third magnetic member 22 and the flexible screen 90; in the direction perpendicular to the support surface 301 of the third structural member, the distance D5 between the support surface 301 of the third structural member and the flexible screen 90 is less than or equal to the distance D6 between the fourth magnetic member 31 and the flexible screen 90. Through the above arrangement, the third magnetic member 22 can be prevented from protruding from the support surface 201 of the second structural member, thereby preventing the second magnetic member 21 from pressing against the flexible screen 90 covering the second structural member 20; similarly, the fourth magnetic member 31 can be prevented from protruding from the support surface 301 of the third structural member, thereby preventing the third magnetic member 22 from pressing against the flexible screen 90 covering the third structural member 30, which is beneficial to improving the reliability of the flexible screen 90.

[0079] In some embodiments, the third magnetic element 22 can be reused as the second magnetic element 21, that is, the third magnetic element 22 and the second magnetic element 21 are the same component. Further, in embodiments where the second magnetic element 21 is disposed in the second recess 202 and the third magnetic element 22 is disposed in the third recess 203, the third recess 203 can also be reused as the second recess 202. Through the above arrangements, it is beneficial to reduce the number of magnetic elements in the foldable electronic device 1, to reduce the manufacturing cost of the foldable electronic device 1, and to improve the mechanical reliability of the foldable electronic device 1.

[0080] Figure 9 is an exploded view of the assembly structure of the third structural component and the sixth magnetic component in a foldable electronic device according to an embodiment of this application. Referring to Figures 2, 4, and 9, in some embodiments, the foldable electronic device 1 may further include a fifth magnetic component 12 and a sixth magnetic component 32. The fifth magnetic component 12 is disposed on the first structural component 10, with its first end 12a closer to the flexible screen 90 than its second end 12b. The sixth magnetic component 32 is disposed on the third structural component 30, with its first end 32a further away from the flexible screen 90 than its second end 32b.

[0081] In this embodiment, both the fifth magnetic element 12 and the sixth magnetic element 32 can be magnets. For example, the fifth magnetic element 12 and the sixth magnetic element 32 can be bar magnets. The direction from the first end 12a of the fifth magnetic element to the second end 12b of the fifth magnetic element can be perpendicular to the support surface 101 of the first structural member, and the direction from the first end 32a of the sixth magnetic element to the second end 32b of the sixth magnetic element can be perpendicular to the support surface 301 of the third structural member. Further, in this embodiment, the number of fifth magnetic elements 12 can be one or more, and the number of sixth magnetic elements 32 can also be one or more; this embodiment does not specifically limit this. In some other embodiments, the fifth magnetic element 12 and the sixth magnetic element 32 can also be other magnetic objects; this embodiment does not specifically limit this.

[0082] Figure 10 is a cross-sectional view of the foldable electronic device in Figure 3 along section line BB. Referring to Figure 10, when the foldable electronic device 1 is in a folded state, the first end 32a of the sixth magnetic element and the first end 12a of the fifth magnetic element are stacked along the second direction Y. Here, the stacking of the first end 12a of the fifth magnetic element and the first end 32a of the sixth magnetic element can be understood as at least a portion of the first end 12a of the fifth magnetic element and at least a portion of the first end 32a of the sixth magnetic element being stacked along the second direction Y. For example, the orthographic projection of the fifth magnetic element 12 onto the third structural member 30 may at least partially coincide with the orthographic projection of the sixth magnetic element 32 onto the third structural member 30. This arrangement allows the magnetic fields of the first end 12a of the fifth magnetic element and the first end 32a of the sixth magnetic element to influence each other.

[0083] In this embodiment, the first end 12a of the fifth magnetic element and the first end 32a of the sixth magnetic element have opposite polarities. For example, the first end 12a of the fifth magnetic element can be an S pole, and the first end 32a of the sixth magnetic element can be an N pole; or, the first end 12a of the fifth magnetic element can be an N pole, and the first end 32a of the sixth magnetic element can be an S pole. With the above arrangement, the foldable electronic device 1 in its flat state first folds the third structural member 30, and then the third structural member 30 and the second structural member 20 are stacked along the second direction Y, and the first structural member 10 and the second structural member 20 are arranged along the first direction X. When the first structural member 10 is further folded, the first structural member 10 is rotated relative to the second structural member 20 through the first rotating mechanism 40, causing the first end 12a of the fifth magnetic member and the first end 32a of the sixth magnetic member to attract each other, thereby guiding the first structural member 10 to continue to rotate towards the second structural member 20. This guides the user to fold the first structural member 10 in the correct folding sequence after folding the third structural member 30, avoiding disorder in the folding sequence of the folding electronic device 1, and thus improving the reliability of the folding electronic device 1.

[0084] For example, continuing to refer to Figure 4, the support surface 101 of the first structural member may be provided with a fifth recess 103, and the fifth magnetic member 12 may be adhered to the fifth recess 103. Continuing to refer to Figure 9, the outer surface 303 of the third structural member may be provided with a sixth recess 304, and the sixth magnetic member 32 may be adhered to the sixth recess 304. The outer surface 303 of the third structural member may be located on the decorative main inner shaft 432 of the third structural member 30. Through the above arrangement, the fifth magnetic member 12 can be fixed on the first structural member 10, and the sixth magnetic member 32 can be fixed on the third structural member 30. Of course, the fifth magnetic member 12 may also be disposed on the first structural member 10 in other ways, and the sixth magnetic member 32 may also be disposed on the third structural member 30 in other ways; this embodiment does not specifically limit these aspects.

[0085] Figure 11 is a partial enlarged view of the foldable electronic device M2 in Figure 10. Further, referring to Figure 11, in the direction perpendicular to the support surface 101 of the first structural member, the distance D7 between the support surface 101 of the first structural member and the flexible screen 90 is smaller than the distance D8 between the fifth magnetic member 12 and the flexible screen 90. This arrangement prevents the fifth magnetic member 12 from protruding from the support surface 101 of the first structural member, thereby preventing the fifth magnetic member 12 from pressing against the flexible screen 90 covering the first structural member 10, which is beneficial to improving the reliability of the flexible screen 90. In the direction perpendicular to the outer surface 303 of the third structural member, the distance D9 between the outer surface 303 of the third structural member and the flexible screen 90 is smaller than the distance D10 between the sixth magnetic member 32 and the flexible screen 90. This arrangement prevents the sixth magnetic member 32 from protruding from the support surface 303 of the third structural member, thereby preventing the sixth magnetic member 32 from pressing against the flexible screen 90 covering the first structural member 10, which is beneficial to improving the reliability of the flexible screen 90.

[0086] This application also provides a rotating mechanism. In some embodiments, this rotating mechanism can be applied to the folding electronic device 11 in the above embodiments. For example, the rotating mechanism can be the first rotating mechanism 40 in the above embodiments.

[0087] Alternatively, in some other embodiments, the rotating mechanism can also be applied to other foldable electronic devices 1. The foldable electronic device 1 may include a flexible screen, a first structural member, and a second structural member. The first structural member and the second structural member are located on the same side of the flexible screen; the rotating mechanism is connected between the first structural member and the second structural member.

[0088] The following description uses the first rotating mechanism 40 in the above embodiments as an example. Figure 12 is an assembly structure diagram of a first structural component, a first rotating mechanism, and a second structural component provided in an embodiment of this application; Figure 13 is an exploded view of the assembly structure of a first structural component, a first rotating mechanism, and a second structural component provided in an embodiment of this application; Figure 14 is a partial enlarged view of the first rotating mechanism M3 in Figure 12, omitting the main inner shaft; Figure 15 is an exploded view of the first rotating mechanism in Figure 14, omitting the main inner shaft. The first rotating mechanism 40 will be described below with reference to Figures 12, 13, 14, and 15.

[0089] The first rotating mechanism 40 may include a spindle assembly 43, a first rotating shaft 41, and a second rotating shaft 42. The spindle assembly 43 and the first end 41a of the first rotating shaft are rotatably connected, and the spindle assembly 43 and the first end 42a of the second rotating shaft are rotatably connected. A first structural member 10 is connected to the second end 41b of the first rotating shaft, and a second structural member 20 is connected to the second end 42b of the second rotating shaft. With the above arrangement, the first structural member 10 can rotate relative to the spindle assembly 43 via the first rotating shaft 41, and the second structural member 20 can rotate relative to the spindle assembly 43 via the second rotating shaft 42.

[0090] The spindle assembly 43 may include an outer spindle 431 and an inner spindle 432 stacked along the second direction Y. For example, there may be multiple outer spindles 431, which may be connected to the same inner spindle 432. The outer spindles 431 and the inner spindle 432 may form a first arcuate groove 433 and a second arcuate groove 435. The first end 41a of the first rotating shaft may include a first arcuate slider 413, which is slidably connected to the first arcuate groove 433, allowing the first end 41a of the first rotating shaft and the spindle assembly 43 to be rotatably connected via a virtual axis connection. The first end 42a of the second rotating shaft may include a second arcuate slider 423, which is slidably connected to the second arcuate groove 435, allowing the first end 42a of the second rotating shaft and the spindle assembly 43 to be rotatably connected via a virtual axis connection.

[0091] Alternatively, in some other embodiments, the positions of the first arc-shaped groove 433 and the first arc-shaped slider 413 can be interchanged, and the positions of the second arc-shaped groove 435 and the second arc-shaped slider 423 can also be interchanged. For example, the first end 41a of the first rotating shaft may include the first arc-shaped groove 433, the first end 42a of the second rotating shaft may include the second arc-shaped groove 435, and the main shaft assembly 43 may include the first arc-shaped slider 413 and the second arc-shaped slider 423.

[0092] In some embodiments, there can be multiple first rotating shafts 41, which can be arranged along a third direction Z. The number of first rotating shafts 41 and the number of main outer shafts 431 can be the same, so that one first rotating shaft 41 is connected to one main outer shaft 431. Similarly, there can be multiple second rotating shafts 42, which can be arranged along a third direction Z. The number of second rotating shafts 42 and the number of main outer shafts 431 can be the same, so that one second rotating shaft 42 is connected to one main outer shaft 431.

[0093] Furthermore, the structures of the multiple first rotating shafts 41 may be the same, or the structures of the multiple first rotating shafts 41 may be different; the structures of the multiple second rotating shafts 42 may be the same, or the structures of the multiple second rotating shafts 42 may be different.

[0094] In this embodiment, the spindle assembly 43 may further include a mating slider 436 and an elastic body 437. The mating slider 436 may be slidably connected to the main outer spindle 431 along the third direction Z. Along the third direction Z, the first end 41a of the first rotating shaft and the first end 42a of the second rotating shaft may both contact the first end of the mating slider 436. The second end of the mating slider 436 may contact the elastic body 437. The elastic body 437 may be disposed on the main outer spindle 431 along the third direction Z. The third direction Z may be the extension direction of the main outer spindle 431.

[0095] For example, referring to FIG15, the main outer shaft 431 may include a mating groove 4312, and a mating slider 436 may be slidably connected to the mating groove 4312. The main outer shaft 431 may also include a receiving groove 4311, and an elastic body 437 may be slidably connected to the mating groove 4312, and the receiving groove 4311 may extend along a third direction Z. The elastic body 437 may be disposed in the receiving groove 4311 of the main outer shaft 431, and a first end of the elastic body 437 may contact the mating slider 436, and a second end of the elastic body 437 may contact the main outer shaft 431. There may be multiple elastic elements, and the multiple elastic elements are arranged along a first direction X. In this embodiment, the elastic element may, for example, include a spring.

[0096] When the rotating mechanism is in the flat state, the first rotating shaft 41, the main shaft assembly 43, and the second rotating shaft 42 together form the support surface of the rotating mechanism, and the dimension of the elastic body 437 along the third direction Z can be the first length. During the transition of the rotating mechanism from the flat state to the folded state, the first rotating shaft 41 rotates relative to the main shaft assembly 43, the second rotating shaft 42 rotates relative to the main shaft assembly 43, and the slider 436 slides relative to the main outer shaft 431 along the third direction Z. When the rotating mechanism is in the folded state, the dimension of the elastic body 437 along the third direction Z is the second length, which is less than the first length.

[0097] In summary, during the transition of the foldable electronic device 1 from a folded state to a flat state, the first structural component 10 rotates relative to the second structural component 20 via the first rotating mechanism 40. Simultaneously, as the first rotating mechanism 40 transitions from a folded state to a flat state, the first rotating shaft 41 rotates relative to the main shaft assembly 43, and the second rotating shaft 42 rotates relative to the main shaft assembly 43. Since the first ends 41a and 42a of both the first and second rotating shafts are connected to the mating slider 436, the first and second rotating shafts 41 and 42 drive the mating slider 436 to slide relative to the main shaft assembly 43 along the third direction Z. The mating slider 436 then drives the elastic body 437 to compress and deform along the third direction Z, causing the dimension of the elastic body 437 along the third direction Z to change from a first length to a second length. At this time, the elastic force of the elastic body 437 acts as a damping force.

[0098] During the transition of the foldable electronic device 1 from a folded state to a flat state, the first structural member 10 rotates relative to the second structural member 20 via the first rotating mechanism 40. Simultaneously, the first rotating mechanism 40 transitions from a folded state to a flat state. Driven by the elastic restoring force of the elastic member, the slider 436 slides relative to the main shaft assembly 43 along the third direction Z. The slider 436 drives the first rotating shaft member 41 to rotate relative to the main shaft assembly 43, and also drives the second rotating shaft member 42 to rotate relative to the main shaft assembly 43, which facilitates the flattening of the first structural member 10 relative to the second structural member 20. At this time, the elastic force of the elastic member can achieve a self-opening effect.

[0099] In some embodiments, continuing to refer to FIG14, the first end 41a of the first rotating shaft may include a first mating surface 419, and the first end of the mating slider 436 may include a second mating surface 4361. The first end 41a of the first rotating shaft and the first end of the mating slider 436 are in contact through the first mating surface 419 and the second mating surface 4361. Both the first mating surface 419 and the second mating surface 4361 intersect with the first direction X, and both the first mating surface 419 and the second mating surface 4361 intersect with the third direction Z.

[0100] Figure 16 is an exploded view of an assembly structure of a first rotating shaft, a mating slider, and a second rotating shaft according to an embodiment of this application. Exemplarily, referring to Figures 12 and 16, the first mating surface 419 can be a helical surface, and the second mating surface 4361 can be a helical surface that mates with the first mating surface 419. Of course, in some other embodiments, the first mating surface 419 can also be an inclined surface, and the second mating surface 4361 can also be an inclined surface that mates with the first mating surface 419. This application does not limit the specific shapes of the first mating surface 419 and the second mating surface 4361.

[0101] Similarly, referring to Figure 14, the first end 42a of the second rotating shaft may include a third mating surface 429, and the mating slider 436 may include a fourth mating surface 4362. The first end 42a of the second rotating shaft and the first end of the mating slider 436 are in contact through the third mating surface 429 and the fourth mating surface 4362. Both the third mating surface 429 and the fourth mating surface 4362 intersect with the first direction X, and both the third mating surface 429 and the fourth mating surface 4362 intersect with the third direction Z.

[0102] For example, referring to Figures 12 and 16, the third mating surface 429 can be a helical surface, and the fourth mating surface 4362 can be a helical surface that mates with the third mating surface 429. Of course, in some other embodiments, the third mating surface 429 can also be an inclined surface, and the fourth mating surface 4362 can also be an inclined surface that mates with the third mating surface 429. The specific shapes of the third mating surface 429 and the fourth mating surface 4362 are not limited in this application embodiment.

[0103] When the first rotating mechanism 40 is in a flat state, there is a first contact area between the first mating surface 419 and the second mating surface 4361, and a second contact area between the third mating surface 429 and the fourth mating surface 4362. During the transition from the flat state to the folded state, the first mating surface 419 slides relative to the second mating surface 4361, and the third mating surface 429 slides relative to the fourth mating surface 4362. When the first rotating mechanism 40 is in the folded state, there is a third contact area between the first mating surface 419 and the second mating surface 4361, and a fourth contact area between the third mating surface 429 and the fourth mating surface 4362. The third contact area is smaller than the first contact area, and the fourth contact area is smaller than the third contact area.

[0104] In summary, during the transition of the foldable electronic device 1 from a folded state to a flat state, the first structural component 10 rotates relative to the second structural component 20 via the first rotating mechanism 40. Simultaneously, the first rotating mechanism 40 transitions from a folded state to a flat state. The first rotating shaft 41 rotates counterclockwise relative to the main shaft assembly 43, and the second rotating shaft 42 rotates clockwise relative to the main shaft assembly 43. Driven by the elastic restoring force of the elastic element, the sliding block 436 slides relative to the main shaft assembly 43 along the third direction Z. Referring to Figures 19, 18, and 17 in sequence, the portion of the first end 41a of the first rotating shaft within the first arc-shaped groove 433 gradually increases, meaning the first arc-shaped slider 413 slides into the first arc-shaped groove 433; similarly, the portion of the first end 42a of the second rotating shaft within the second arc-shaped groove 435 gradually increases, meaning the second arc-shaped slider 423 slides into the second arc-shaped groove 435. This increases the contact area between the sliding block 436 and the first rotating shaft 41, and the contact area between the sliding block 436 and the second rotating shaft 42, making it easier for the sliding block 436 to transmit driving force to the first rotating shaft 41 and the second rotating shaft 42, further driving the first rotating shaft 41 to rotate relative to the main shaft assembly 43, and further driving the second rotating shaft 42 to rotate relative to the main shaft assembly 43.

[0105] Furthermore, since both the first mating surface 419 and the second mating surface 4361 intersect with the first direction X, and both the third mating surface 429 and the fourth mating surface 4362 intersect with the third direction Z, the first mating surface 419 and the second mating surface 4361, the third mating surface 429 and the fourth mating surface 4362 can achieve surface mating between inclined surfaces. This inclined surface mating can amplify the force. For example, when the compression of the elastic element is small, the elastic restoring force of the elastic element is small. However, the small elastic restoring force can be amplified by the first mating surface 419 and the second mating surface 4361, the third mating surface 429 and the fourth mating surface 4362, thereby increasing the self-relagging force.

[0106] Furthermore, the first mating surface 419 and the third mating surface 429 can be symmetrically arranged, and the second mating surface 4361 and the fourth mating surface 4362 can be symmetrically arranged. With the above arrangement, during the transition of the folding electronic device 1 from a folded state to a flat state, the first rotating shaft 41 and the second rotating shaft 42 can simultaneously drive the mating slider 436 to move, preventing the sliding direction of the mating slider 436 from deviating; during the transition of the folding electronic device 1 from a folded state to a flat state, the mating slider 436 can drive the first rotating shaft 41 and the second rotating shaft 42 to achieve synchronous rotation.

[0107] In this embodiment of the application, referring to Figures 13, 14 and 15, the spindle assembly 43 may further include a synchronizing gear 434, a first rack 438 and a second rack 439. The synchronizing gear 434 is fixedly connected to the spindle, and the central axis of the synchronizing gear 434 is parallel to the second direction Y. The first rack 438 meshes with the synchronizing gear 434 and is also connected to the first rotating shaft 41. The second rack 439 meshes with the synchronizing gear 434 and is also connected to the second rotating shaft 42.

[0108] For example, the first rack 438 may be provided with a groove, and the first end 41a of the first rotating shaft may be provided with a protrusion, which may be inserted into the groove of the first rack 438; similarly, the second rack 439 may be provided with a groove, and the first end 42a of the second rotating shaft may be provided with a protrusion, which may be inserted into the groove of the second rack 439.

[0109] With the above settings, during the transition of the folding electronic device 1 from a folded state to a flat state, the first rotating shaft 41 rotates relative to the main shaft assembly 43. The first rotating shaft 41 drives the first rack 438 to move to the right along the first direction X. The first rack 438 drives the synchronous gear 434 to rotate clockwise. As the synchronous gear 434 rotates, the second rack 439 moves to the left along the first direction X, and the direction of movement of the second rack 439 is opposite to the direction of movement of the first rack 438. The second rack 439 drives the second rotating component to rotate relative to the main shaft assembly 43, so that the first rotating shaft 41 and the second rotating shaft 42 can rotate synchronously.

[0110] During the transition of the foldable electronic device 1 from a flat state to a folded state, the first rotating shaft 41 rotates relative to the main shaft assembly 43. The first rotating shaft 41 drives the first rack 438 to move to the left along the first direction X. The first rack 438 drives the synchronous gear 434 to rotate counterclockwise. As the synchronous gear 434 rotates, the second rack 439 moves to the right along the first direction X, and the direction of movement of the second rack 439 is opposite to the direction of movement of the first rack 438. The second rack 439 drives the second rotating component to rotate relative to the main shaft assembly 43, so that the first rotating shaft 41 and the second rotating shaft 42 can rotate synchronously.

[0111] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A foldable electronic device, characterized in that, include: Flexible screen; The first structural component, the second structural component, and the third structural component are located on the same side of the flexible screen; A first rotating mechanism and a second rotating mechanism, wherein the first rotating mechanism is connected between the first structural member and the second structural member, and the second rotating mechanism is connected between the second structural member and the third structural member; A first magnetic component and a second magnetic component, wherein the first magnetic component is disposed on the first structural component, and the first end of the first magnetic component is closer to the flexible screen than the second end of the first magnetic component; the second magnetic component is disposed on the second structural component, and the first end of the second magnetic component is closer to the flexible screen than the second end of the second magnetic component; the first ends of the first magnetic component and the first ends of the second magnetic component have the same polarity. When the foldable electronic device is in a flat state, the first structural component, the second structural component, and the third structural component are arranged sequentially along the first direction. The first structural component, the first rotating mechanism, the second structural component, the second rotating mechanism, and the third structural component together constitute a support plane for supporting the flexible screen. During the process of the foldable electronic device transitioning from the flat state to the foldable state, the first structural component rotates relative to the second structural component via the first rotating mechanism, and the third structural component rotates relative to the second structural component via the second rotating mechanism. When the foldable electronic device is in a folded state, the first structural component, the third structural component, and the second structural component are stacked sequentially along a second direction, and the first end of the first magnetic component and the first end of the second magnetic component are stacked along the second direction, which is perpendicular to the first direction.

2. The foldable electronic device according to claim 1, characterized in that, The supporting surface of the first structural member has a first recess, and the first magnetic element is disposed in the first recess; the supporting surface of the second structural member has a second recess, and the second magnetic element is disposed in the second recess.

3. The folding electronic device according to claim 1 or 2, characterized in that, In the direction perpendicular to the support surface of the first structural member, the distance between the support surface of the first structural member and the flexible screen is less than or equal to the distance between the first magnetic member and the flexible screen. And / or, in a direction perpendicular to the support surface of the second structural member, the distance between the support surface of the second structural member and the flexible screen is less than or equal to the distance between the second magnetic member and the flexible screen.

4. The foldable electronic device according to any one of claims 1-3, characterized in that, It also includes a third magnetic element and a fourth magnetic element. The third magnetic element is disposed on the second structural element, and the first end of the third magnetic element is closer to the flexible screen than the second end of the third magnetic element. The fourth magnetic element is disposed on the third structural element, and the first end of the fourth magnetic element is closer to the flexible screen than the second end of the fourth magnetic element. The first ends of the third magnetic element and the first ends of the fourth magnetic element have opposite polarities. When the foldable electronic device is in a folded state, the first end of the third magnetic element and the first end of the fourth magnetic element are stacked along the second direction.

5. The foldable electronic device according to claim 4, characterized in that, The third magnetic component is reused as the second magnetic component.

6. The folding electronic device according to any one of claims 1-5, characterized in that, It also includes a fifth magnetic element and a sixth magnetic element. The fifth magnetic element is disposed on the first structural element, and the first end of the fifth magnetic element is closer to the flexible screen than the second end of the fifth magnetic element. The sixth magnetic element is disposed on the third structural element, and the first end of the sixth magnetic element is farther away from the flexible screen than the second end of the sixth magnetic element. The polarities of the first ends of the fifth magnetic element and the first ends of the sixth magnetic element are opposite. When the foldable electronic device is in a folded state, the first end of the sixth magnetic element and the first end of the fifth magnetic element are stacked along the second direction.

7. The folding electronic device according to any one of claims 1-6, characterized in that, The first rotating mechanism includes: a main shaft assembly, a first rotating shaft, and a second rotating shaft. The main shaft assembly and the first end of the first rotating shaft are rotatably connected. The main shaft assembly and the first end of the second rotating shaft are rotatably connected. The first structural member is connected to the second end of the first rotating shaft, and the second structural member is connected to the second end of the second rotating shaft. The spindle assembly includes a spindle, a mating slider, and an elastic body. The mating slider is slidably connected to the spindle along a third direction. Along the third direction, the first end of the first rotating shaft and the first end of the second rotating shaft are both in contact with the first end of the mating slider. The second end of the mating slider is in contact with the elastic body. The elastic body is disposed on the spindle along the third direction, which is the extension direction of the spindle. When the first rotating mechanism is in a flat state, the first rotating shaft, the main shaft assembly, and the second rotating shaft together constitute the support surface of the first rotating mechanism, and the dimension of the elastic body along the third direction is the first length; During the transition of the first rotating mechanism from the flat state to the folded state, the first rotating shaft rotates relative to the main shaft assembly, the second rotating shaft rotates relative to the main shaft assembly, and the mating slider slides relative to the main shaft along the third direction. When the first rotating mechanism is in a folded state, the dimension of the elastic body along the third direction is a second length, which is less than the first length.

8. The foldable electronic device according to claim 7, characterized in that, The first end of the first rotating shaft includes a first mating surface, and the first end of the mating slider includes a second mating surface. The first end of the first rotating shaft and the first end of the mating slider are in contact through the first mating surface and the second mating surface. Both the first mating surface and the second mating surface intersect with the first direction, and both the first mating surface and the second mating surface intersect with the third direction. The first end of the second rotating shaft includes a third mating surface, and the mating slider includes a fourth mating surface. The first end of the second rotating shaft and the first end of the mating slider are in contact through the third mating surface and the fourth mating surface. The third mating surface and the fourth mating surface both intersect with the first direction, and the third mating surface and the fourth mating surface both intersect with the third direction. When the first rotating mechanism is in a flat state, there is a first contact area between the first mating surface and the second mating surface, and there is a second contact area between the third mating surface and the fourth mating surface; During the transition of the first rotating mechanism from the flat state to the folded state, the first mating surface slides relative to the second mating surface, and the third mating surface slides relative to the fourth mating surface; When the first rotating mechanism is in a folded state, there is a third contact area between the first mating surface and the second mating surface, and there is a fourth contact area between the third mating surface and the fourth mating surface. The third contact area is smaller than the first contact area, and the fourth contact area is smaller than the third contact area.

9. A rotating mechanism, characterized in that, include: The spindle assembly, the first rotating shaft, and the second rotating shaft are rotatably connected to a first end of the first rotating shaft and to a first end of the second rotating shaft. The spindle assembly includes a spindle, a mating slider, and an elastic body. The mating slider is slidably connected to the spindle along a third direction. The first end of the first rotating shaft and the first end of the second rotating shaft are both in contact with the first end of the mating slider. The second end of the mating slider is connected to the elastic body. The elastic body is disposed on the spindle along a third direction, which is the extension direction of the spindle. When the rotating mechanism is in a flat state, the first rotating shaft, the main shaft assembly, and the second rotating shaft together constitute the support surface of the rotating mechanism, and the dimension of the elastic body along the third direction is the first length; During the transition of the rotating mechanism from the flat state to the folded state, the first rotating shaft rotates relative to the main shaft assembly, the second rotating shaft rotates relative to the main shaft assembly, and the mating slider slides relative to the main shaft along the third direction. When the rotating mechanism is in a folded state, the dimension of the elastic body along the third direction is a second length, which is less than the first length.

10. A foldable electronic device, characterized in that, include: The flexible screen, the first structural component, the second structural component, and the rotating mechanism as described in claim 9; The first structural member and the second structural member are located on the same side of the flexible screen, and the rotating mechanism is connected between the first structural member and the second structural member.

Images