Foldable electronic equipment

Abstract

The invention provides foldable electronic equipment. The foldable electronic equipment comprises a rotating shaft assembly; the middle frame assembly comprises a middle frame body and a battery cover; the middle frame body is rotatably arranged on one side of the rotating shaft assembly; the battery cover is buckled on the middle frame body along the thickness direction of the electronic equipment; the door plate assembly comprises a first door plate and a second door plate. The first door plate is buckled on the rotating shaft assembly in the thickness direction of the electronic equipment, and the first door plate and the battery cover are located on the same side of the electronic equipment. The second door plate is arranged between the rotating shaft assembly and the middle frame body and can rotate along with the middle frame body; one end of the second door plate abuts against the first door plate, and the other end is contained in the middle frame assembly. When the electronic equipment is in an unfolded state, the second door plate inclines by a preset angle in the direction away from the battery cover relative to the first door plate. Therefore, when the whole machine is thinned, the size of the rotating shaft assembly is not reduced, or the size of the rotating shaft assembly is properly increased, so that the purpose of increasing the strength of the rotating shaft assembly is achieved.

Description

A foldable electronic device Technical Field

[0001] This application relates to the field of terminal device technology, and more particularly to a foldable electronic device. Background Technology

[0002] With the development of terminal technology, the screen sizes of electronic devices such as mobile phones are getting larger and larger. In order to meet users' portability needs while increasing screen size, foldable screen devices are gradually entering users' usage scenarios.

[0003] In the current structure of outward-folding screen devices, the door panel decorative piece of the outward-folding hinge is located below the battery cover in the unfolded state of the device, with a certain space between the two battery covers and the door panel. As the overall device becomes thinner, the hinge is also becoming thinner, requiring full utilization of the space between the battery cover and the door panel to increase the internal space of the hinge and strengthen the hinge components.

[0004] Therefore, there is an urgent need for an electronic device that is suitable for thinning requirements and can improve strength. Summary of the Invention

[0005] To address the aforementioned issues, this application provides a foldable electronic device that utilizes the space between the battery cover and the door panel to increase the internal mounting space of the hinge assembly, thereby increasing the strength of the hinge assembly while reducing the overall device thickness.

[0006] The foldable electronic device provided in this application includes: a hinge assembly; a mid-frame assembly; the mid-frame assembly includes a mid-frame body and a battery cover; the mid-frame body is rotatably disposed on one side of the hinge assembly; the battery cover is fastened to the mid-frame body along the thickness direction of the electronic device; a door panel assembly; the door panel assembly includes a first door panel and a second door panel; the first door panel is fastened to the hinge assembly along the thickness direction of the electronic device, and the first door panel and the battery cover are located on the same side of the electronic device; the second door panel is disposed between the hinge assembly and the mid-frame body, and the second door panel can rotate with the mid-frame body; one end of the second door panel abuts against the first door panel, and the other end is stored inside the mid-frame assembly; when the electronic device is in the unfolded state, the second door panel is tilted at a preset angle relative to the first door panel away from the battery cover.

[0007] In the foldable electronic device provided in this application embodiment, the second door panel is not parallel to the battery cover, but is set to be tilted at a preset angle relative to the battery cover, changing the traditional method where the second door panel can only move along the plane where the first door panel is located. When setting the positional relationship between the first and second door panels, the end of the second door panel near the first door panel and the first door panel can be along the thickness direction of the electronic device, which can increase the distance between the first door panel and the folding screen. This allows for an increase in the installation space of the hinge assembly by increasing the internal area. Consequently, when thinning the entire electronic device, the strength of the hinge assembly can be increased without changing the original volume of the hinge assembly or by increasing the volume of the hinge assembly.

[0008] In some feasible implementations, the first door panel is flush with the battery cover; or, along the thickness direction of the electronic device, the first door panel protrudes from the side opposite to the middle frame body. In this way, when thinning the entire device, the overall volume of the hinge assembly can be maintained without reducing its size. Alternatively, the overall volume of the hinge assembly can be appropriately increased depending on the device model and the size of the installation space, thereby increasing the strength of the hinge assembly.

[0009] In some feasible implementations, the side of the second door panel facing away from the battery cover also includes a slider; the middle frame assembly also includes a sliding groove, with the slider sliding in conjunction with the groove. When the middle frame assembly rotates, the slider slides within the groove, causing the second door panel to rotate relative to the first door panel. This slider-groove interaction limits the movement trajectory of the second door panel. On one hand, it ensures the reliability of the second door panel during movement, guaranteeing the smoothness of the electronic device's folding process and preventing misalignment of the second door panel during movement that could cause folding jams. On the other hand, the slider-groove fit is highly precise, simplifying the manufacturing process.

[0010] In some feasible implementations, when the slide includes a straight slide, one end of the straight slide is opposite to the end of the battery cover used to house the second door panel along the width direction of the electronic device, and the other end is inclined away from the battery cover. When the slide includes a first arcuate groove, one end of the first arcuate groove is opposite to the end of the battery cover used to house the second door panel along the width direction of the electronic device, and the other end of the first arcuate groove is symmetrically arranged with one end of the first arcuate groove, and the first arcuate groove is curved towards the battery cover. In this way, the selection of the slide is more flexible and can be adjusted according to the overall structure and parameters of the foldable electronic device.

[0011] In some feasible implementations, the foldable electronic device also includes a connector; the hinge assembly further includes a rotating part, one end of the connector rotatably engages with the rotating part, and the other end is connected to the second door panel; when the mid-frame assembly rotates, the connector drives the second door panel to rotate relative to the rotating part. In this way, the connector can drive the second door panel to rotate, ensuring the stability of the second door panel during sliding.

[0012] In some feasible implementations, the rotating part includes a second arcuate groove; one end of the connector is rotatably disposed within the second arcuate groove and can slide along the second arcuate groove, while the other end is rotatably connected to the second door panel; when the middle frame assembly rotates, the connector slides within the second arcuate groove and rotates relative to the second arcuate groove, thereby driving the second door panel to rotate relative to the first door panel. This allows the connector to rotate relative to the pivot assembly and also drive the second door panel to rotate. Furthermore, the arcuate groove adapted to the second arcuate groove is located on the base, eliminating the need for additional connecting components, effectively simplifying the structure of the pivot assembly and facilitating the miniaturization of electronic devices.

[0013] In some feasible implementations, the end of the connector that connects to the second door panel is positioned opposite the slider along the height direction of the electronic device. This allows for a reasonable arrangement of the positional relationship between the second door panel and the connector, making better use of the internal installation space of the electronic device and facilitating the thinning of the electronic device.

[0014] In some feasible implementations, the rotating part includes a fixed shaft; the fixed shaft extends along the height direction of the electronic device; the connector includes a guide groove, and the fixed shaft is disposed within the guide groove; when the middle frame assembly rotates, the fixed shaft slides relative to the second door panel along the guide groove, and the connector rotates relative to the fixed shaft to drive the second door panel to rotate relative to the first door panel. In this way, the mounting hole for the fixed shaft can be formed on the base, eliminating the need for additional connecting components, effectively simplifying the structure of the rotating shaft assembly and facilitating the miniaturization of the electronic device.

[0015] In some feasible implementations, the guide groove includes a waist-shaped groove, which can be a straight waist-shaped groove or a curved waist-shaped groove. When the waist-shaped groove is a straight waist-shaped groove, in the unfolded state of the electronic device, one end of the straight waist-shaped groove is connected to the second door panel, and the other end is housed inside the hinge assembly. When the waist-shaped groove is a curved waist-shaped groove, in the unfolded state of the electronic device, one end of the curved waist-shaped groove is connected to the second door panel, and the other end is housed inside the hinge assembly, with the curved waist-shaped groove curving towards the direction of the slider. This allows for a more flexible arrangement of the guide groove's form.

[0016] In some feasible implementations, the connector in one second panel is offset from the connector in an adjacent second panel along the height direction of the electronic device. This reduces the size of the electronic device along the width direction of the second panel, which is beneficial for miniaturization.

[0017] In some feasible implementations, the battery cover also includes a bevel, which is positioned on the side used to house the second door panel; the angle of inclination of the bevel is greater than or equal to a preset angle. This prevents the second door panel from colliding with the battery cover during movement, effectively ensuring the smoothness of the second door panel during sliding. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 is a partial schematic diagram of a foldable electronic device;

[0020] Figure 2 is a cross-sectional schematic diagram of a foldable electronic device in its unfolded state;

[0021] Figure 3 is a cross-sectional schematic diagram of a foldable electronic device in its unfolded state;

[0022] Figure 4 is a simplified schematic diagram of the unfolded state of a foldable electronic device;

[0023] Figure 5 is a schematic diagram of the unfolded state of an electronic device provided in an embodiment of this application;

[0024] Figure 6 is a schematic diagram of the unfolded state of another electronic device provided in an embodiment of this application;

[0025] Figure 7 is a structural schematic diagram of a second door panel provided in an embodiment of this application;

[0026] Figure 8 is a structural schematic diagram of another second door panel provided in an embodiment of this application;

[0027] Figure 9 is a schematic diagram of one of the structures of a connector provided in an embodiment of this application;

[0028] Figure 10 is a second structural schematic diagram of a connector provided in an embodiment of this application;

[0029] Figure 11 is a three-dimensional structural diagram of a connector provided in an embodiment of this application;

[0030] Figure 12 is a cross-sectional view of a foldable electronic device in a semi-folded state according to an embodiment of this application;

[0031] Figure 13 is a cross-sectional view of a foldable electronic device in a fully folded state according to an embodiment of this application;

[0032] Figure 14 is a schematic diagram of another connector provided in an embodiment of this application;

[0033] Figure 15 is a second structural schematic diagram of another connector provided in an embodiment of this application;

[0034] Figure 16 is a three-dimensional structural schematic diagram of another connector provided in an embodiment of this application;

[0035] Figure 17 is a cross-sectional view of another foldable electronic device provided in an embodiment of this application in a semi-folded state;

[0036] Figure 18 is a cross-sectional view of another foldable electronic device provided in an embodiment of this application in its fully folded state;

[0037] Figure 19 is a schematic diagram of the structure of a foldable electronic device in a fully folded state according to an embodiment of this application;

[0038] Figure 20 is a schematic diagram of another foldable electronic device provided in the embodiment of this application in a fully folded state.

[0039] Illustration markings:

[0040] 10-First middle frame; 20-Second middle frame; 30-Battery back panel; 40-Hinge mechanism; 50-Door panel;

[0041] 100 - Rotating shaft assembly; 101 - Rotating part; 101a - Second circular arc groove; 101b - Fixed shaft;

[0042] 200-Middle frame assembly; 201-Middle frame body; 202-Battery cover; 202a-Beveled surface; 210-Connecting block; 203-Slide groove; 2031-Straight slide groove; 2032-First circular arc groove;

[0043] 300-Door panel assembly; 301-First door panel; 302-Second door panel; 3021-Door panel body; 3022-Connecting part; b1-Slider; b11-Straight slider; b12-Bent slider; b2-Allowing groove;

[0044] 400 - Connector; 401 - Arc structure; 402 - Linkage structure; 403 - Guide groove; c1 - First end; c2 - Second end. Detailed Implementation

[0045] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are all within the protection scope of this application.

[0046] In the following description, the terms "first," "second," etc., are used for descriptive purposes 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, "a plurality of" means two or more.

[0047] Furthermore, in this application, directional terms such as "upper," "lower," "inner," and "outer" are defined relative to the indicated placement of the components in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the placement of the components in the accompanying drawings.

[0048] With the development of electronic devices, the types of foldable electronic devices are constantly increasing. Foldable electronic devices include inward-folding and outward-folding devices, among which outward-folding devices are gradually gaining popularity among users. In outward-folding electronic devices, after folding, the folding screen can be located on the outside, mainly relying on the rotation of the outward folding hinge to fold the screen outward.

[0049] Figure 1 is a structural schematic diagram of a foldable electronic device in its unfolded state, and Figure 2 is a cross-sectional schematic diagram of a foldable electronic device in its folded state.

[0050] Referring to Figures 1 and 2, the foldable electronic device includes a first middle frame 10, a second middle frame 20, two battery cover plates 30, a hinge mechanism 40, and a door panel 50. The first middle frame 10 and the second middle frame 20 are respectively located on both sides of the axis of the hinge mechanism 40. The first middle frame 10 and the second middle frame 20 are connected to the hinge mechanism 40 and can rotate through the hinge mechanism 40. The first middle frame 10 can be controlled to rotate along the A1 direction, and the second middle frame 20 can rotate along the A2 direction, so that the included angle between the first middle frame 10 and the second middle frame 20 is reduced until the included angle between the first middle frame 10 and the second middle frame 20 is reduced to zero, at which point the foldable electronic device is in a fully folded state. In the fully folded state of the electronic device, the two battery cover plates 30 are positioned opposite each other and parallel to each other; or the angle between the first middle frame 10 and the second middle frame 20 is increased, controlling the first middle frame 10 to rotate in the opposite direction of A1 and the second middle frame 20 to rotate in the opposite direction of the second A2, until the angle between the first middle frame 10 and the second middle frame 20 increases to 180°, at which point the foldable electronic device is in an unfolded state. Here, the A1 and A2 directions can be two directions symmetrically arranged about the pivot mechanism 40.

[0051] Two battery cover plates 30 are respectively fastened to the first middle frame 10 and the second middle frame 20. A folding screen (not shown in the figure) is provided on the side opposite to the battery cover plates 30. The folding screen covers the first middle frame 10, the second middle frame 20, and the pivot mechanism 40, and is connected to the first middle frame 10 and the second middle frame 20 respectively. Three door panels 50 are disposed between the two battery cover plates 30. In the unfolded state of the electronic device, the three door panels 50 are arranged sequentially between the two battery cover plates 30, and the door panels 50 on both sides are rotatably disposed on both sides of the middle door panel 50. When the electronic device is in the unfolded state, the planes on the three door panels 50 and the battery cover plates 30 are the same plane, and the pivot mechanism 40 is also in the unfolded state. In the folded state of the electronic device, the door panels 50 on both sides rotate relative to the middle door panel 50, and the pivot mechanism 40 is also in the folded state. In the folded state of the electronic device, the first middle frame 10, the second middle frame 20, the two battery cover plates 30, and the two door panels 50 are distributed on both sides of the hinge mechanism 40, and the hinge mechanism 40 folds the folding screen into an outward folding shape.

[0052] It should be noted that electronic components such as circuit boards, speaker modules, and batteries can be installed inside the first middle frame 10 and the second middle frame 20, which will not be listed here.

[0053] Figure 3 is a cross-sectional schematic diagram of a foldable electronic device in its unfolded state; Figure 4 is a simplified schematic diagram of a foldable electronic device in its unfolded state.

[0054] Referring to Figures 3 and 4, the foldable electronic device is currently in its unfolded state. The three door panels 50 are parallel to the two battery cover panels 30, with the opposite ends of the door panels 50 located inside the first middle frame 10 and the second middle frame 20 of the electronic device. The distance between the door panels 50 and the folding screen is H0, which is less than the distance D between the battery cover panels 30 and the folding screen along the thickness direction of the electronic device. In this electronic device, the maximum mounting height of the hinge mechanism 40 is H0. The mounting area of ​​the hinge mechanism 40 can be within the area shown by the dashed line in Figure 4. It is worth noting that there is a certain space between the two battery cover panels 30 and the upper surfaces of the three door panels 50, and this space is located outside the electronic device.

[0055] With the trend of miniaturization in electronic devices, the overall thinning is accompanied by a thinner hinge mechanism 40. The strength of the components in the hinge mechanism 40 can be increased by utilizing the space between the battery cover 30 and the door panel 50 of the electronic device to expand the mounting space. Therefore, the space between the battery cover 30 and the upper surface of the door panel 50 in Figures 3 and 4 is crucial for improving the strength of the hinge mechanism 40.

[0056] In order to achieve both thinner overall device design and increased strength of the hinge mechanism, this application provides a foldable electronic device that utilizes the space between the battery cover 30 and the door panel 50 to increase the internal installation space of the hinge mechanism 40, thereby increasing the structural strength of the internal parts of the hinge mechanism 40.

[0057] Figure 5 is a schematic diagram of the unfolded state of a foldable electronic device provided in an embodiment of this application.

[0058] Referring to Figure 5, the foldable electronic device provided in this application embodiment includes a hinge assembly (not shown in the figure, but installed in the area indicated by the dashed line), a mid-frame assembly 200, and a door panel assembly 300.

[0059] The mid-frame assembly 200 includes a mid-frame body 201 and a battery cover 202. The mid-frame body 201 is rotatably disposed on one side of the pivot assembly. The mid-frame body 201 can rotate relative to the pivot assembly under the action of an external force. During the rotation of the mid-frame assembly 200, the electronic device can switch between an unfolded state and a folded state.

[0060] The battery cover 202 is fastened to the mid-frame body 201 along the thickness direction of the electronic device. A folding screen is provided on the side opposite the battery cover 202, also along the thickness direction of the electronic device. There can be two mid-frame assemblies 200, each positioned on either side of the hinge assembly. During the folding process of the electronic device, the two mid-frame assemblies 200 can rotate relative to the hinge assembly, moving closer to or further away from each other.

[0061] The door panel assembly 300 is located between two battery covers 202. The door panel assembly 300 includes a first door panel 301 and two second door panels 302. The first door panel 301 is fastened to the hinge assembly along the thickness direction of the electronic device, and the first door panel 301 and the battery covers 202 are located on the same side of the electronic device.

[0062] Specifically, the first door panel 301 can be fixedly connected to the pivot assembly, so that the first door panel 301 does not undergo relative displacement with the pivot assembly while the pivot assembly drives the middle frame assembly 200 to rotate. The pivot assembly may include a base and two swing arms, which are rotatably disposed on both sides of the base. The swing arms are used to drive the middle frame assembly 200 to rotate relative to the base, thereby realizing the folding and unfolding operation of the electronic device. The first door panel 301 can be fastened to the base. During the folding process of the electronic device, the second door panel 302 rotates relative to the base with the swing arms, while the base and the first door panel 301 remain stationary.

[0063] The second door panel 302 is disposed between the pivot assembly and the middle frame body 201, and the second door panel 302 can rotate with the middle frame body 201. In this way, during the rotation of the middle frame body 201, the second door panel 302 can rotate together with the middle frame body 201.

[0064] Two second door panels 302 are rotatably and symmetrically arranged at opposite ends of the first door panel 301. One end of each second door panel 302 abuts against the first door panel 301, while the other end extends away from the first door panel 301 and is housed inside the mid-frame assembly 200. Specifically, the end of the second door panel 302 facing away from the first door panel 301 is covered by a battery cover 202. When the electronic device is in the unfolded state, the second door panel 302 is tilted at a predetermined angle α relative to the first door panel 301 away from the battery cover 202.

[0065] In other words, the second door panel 302 is no longer parallel to the battery cover 202, but is instead tilted at a preset angle α relative to the battery cover 202. Thus, when the electronic device is folded, the second door panel 302 can move inwards along the preset angle α, driven by the middle frame assembly 200, until the electronic device is fully folded and the second door panel 302 is completely inside the middle frame assembly 200. This changes the traditional method where the second door panel 302 can only move along the plane of the first door panel 301.

[0066] Therefore, when setting the positional relationship between the first door panel 301 and the second door panel 302, the end of the second door panel 302 near the first door panel 301 and the first door panel 301 along the thickness direction of the electronic device can increase the distance between the first door panel 301 and the folding screen. This reduces the area of ​​the enclosed region between the first door panel 301, the second door panel 302, and the battery cover 202. This allows for an increase in the installation space of the hinge assembly by increasing the internal area of ​​the electronic device. When thinning the entire electronic device, the strength of the hinge assembly can be increased without changing its original volume or by increasing its volume.

[0067] In one feasible implementation, continuing to refer to Figure 5, the first door panel 301 is flush with the battery cover 202. That is, in the foldable electronic device provided in this embodiment, due to the tilted arrangement of the second door panel 302, the first door panel 301 is no longer located at a distance H0 from the folding screen, but rather its distance from the folding screen is increased along the thickness direction of the electronic device, increasing from the original H0 to H1. This distance H1 is equal to the distance D between the battery cover 202 and the folding screen, and the maximum mounting height of the hinge assembly along the thickness direction of the electronic device is also increased from the original H0 to H1. The increased space can be compensated for by increasing the volume of the hinge assembly to enhance its strength.

[0068] In this way, when reducing the thickness of the entire machine, the volume of the hinge assembly can be maintained. Alternatively, the volume of the hinge assembly can be appropriately increased according to the overall model of the electronic device and the size of the installation space, thereby increasing the strength of the hinge assembly.

[0069] Figure 6 is a schematic diagram of the unfolded state of another foldable electronic device provided in an embodiment of this application.

[0070] In one feasible implementation, referring to Figure 6, the first door panel 301 protrudes from the battery cover 202 toward the side opposite to the middle frame body 201 along the thickness direction of the electronic device. That is, the first door panel 301 can also be configured to protrude from the battery cover 202 toward the outside of the foldable electronic device.

[0071] Specifically, in this implementation, the distance between the first door panel 301 and the folding screen is further increased along the thickness direction of the electronic device, and the first door panel 301 is positioned outside the area enclosed by the middle frame assembly 200 and the folding screen. At this time, the distance between the first door panel 301 and the folding screen is H2, which is greater than the distance D between the battery cover 202 and the folding screen. The maximum installation height of the hinge assembly along the thickness direction of the electronic device increases from the original H0 to H2, thereby increasing the installation height of the hinge assembly along the thickness direction of the electronic device.

[0072] In this way, by protruding the first door panel 301 out of the battery cover 202 along the thickness direction of the electronic device, the distance between the first door panel 301 and the folding screen is increased, thereby increasing the installation space of the hinge assembly and achieving the purpose of increasing the strength of the hinge assembly.

[0073] In this implementation, the first door panel 301 protrudes from the battery cover 202 by a height H3 along the thickness direction of the electronic device. H3 can be adaptively adjusted according to the overall size of the foldable electronic device and the placement of the first door panel 301. Specifically, the height H3 protruding from the battery cover 202 is the difference between H2 and D. For example, if the overall size of the foldable electronic device is large and the width of the first door panel 301 is large, a relatively large H3 can be set; if the overall size of the foldable electronic device is small and the width of the first door panel 301 is small, a relatively small H3 can be set.

[0074] It is worth noting that, while keeping the dimensions of the second door panel 302 unchanged, in the implementation shown in Figure 5, since the second door panel 302 is flush with the battery cover 202, the value of the preset angle α by which the second door panel 302 is tilted relative to the first door panel 301 away from the battery cover 202 can be relatively small. In the implementation shown in Figure 6, since the second door panel 302 protrudes from the battery cover 202 along the thickness direction of the electronic device, the value of the preset angle α by which the second door panel 302 is tilted relative to the first door panel 301 away from the battery cover 202 can be relatively large.

[0075] In some feasible implementations, the preset angle α can range from 0 to 30°. For example, the preset angle α can be one of 5°, 10°, 15°, 20°, 25°, or 30°. Of course, in other feasible implementations, the preset angle α can also be a larger, smaller, or different angle range. Specifically, the range of the preset angle α can be adaptively adjusted according to parameters such as the overall size of the foldable electronic device, the size of the second door panel 302, and the setting position of the first door panel 301. This application embodiment does not specifically limit the angle range or value of the preset angle α. For example, when the size of the second door panel 302 is small and the height H3 of the first door panel 301 protruding from the battery cover 202 is large, a relatively large preset angle α can be set; when the size of the second door panel 302 is large and the height H3 of the first door panel 301 protruding from the battery cover 202 is small, a relatively small preset angle α can be set.

[0076] Figure 7 is a structural schematic diagram of a second door panel provided in an embodiment of this application.

[0077] Referring to Figures 6 and 7, the second door panel 302 may include a door panel body 3021 and a connecting portion 3022. One end of the door panel body 3021 abuts against the first door panel 301, and the other end extends into the middle frame assembly 200 along a predetermined inclined angle α and is covered by the battery cover 202. The connecting portion 3022 is located on the side of the second door panel 302 away from the battery cover 202, and the connecting portion 3022 is provided with a slider b1. Correspondingly, the foldable electronic device also includes a connecting block 210, which can be fixedly installed in the middle frame assembly 200. Along the height direction of the electronic device, the position of the connecting block 210 can be opposite to the battery cover 202, and the connecting block 210 is provided with a sliding groove 203. The slider b1 is adapted to the shape of the sliding groove 203. When the shape of the slider b1 changes, the sliding groove 203 can adaptively adjust to follow the shape of the slider b1, so that the second door panel 302 can rotate relative to the first door panel 301 by sliding the slider b1 in the sliding groove 203. Specifically, the shapes of slider b1 and groove 203 can be adaptively adjusted according to the overall shape of the actual foldable electronic device.

[0078] In this way, when the electronic device switches between the unfolded state and the fully folded state, the second door panel 302 can slide within the slide groove 203 via the slider b1 along the direction of the preset angle α with respect to the battery cover 202.

[0079] For example, in the unfolded state of the electronic device, slider b1 is in its initial position. In this initial position, the end of slider b1 facing away from the first door panel 301 is located within the slide groove 203, ensuring the sliding stability of the second door panel 302. During the transition from the unfolded state to the fully folded state, slider b1 slides relative to the connecting block 210 along the direction B1 within the slide groove 203. As the degree of folding of the electronic device increases, the portion of slider b1 within the slide groove 203 gradually increases, while the portion outside the slide groove 203 gradually decreases, until the electronic device is fully folded and slider b1 has completely slid into the slide groove 203. During the transition from the fully folded state to the unfolded state, slider b1 slides relative to the connecting block 210 along the opposite direction of B1 within the slide groove 203. As the degree of unfolding of the electronic device increases, the portion of slider b1 within the slide groove 203 gradually decreases, while the portion outside the slide groove 203 gradually increases, until slider b1 slides back to its initial position, and the electronic device is in the unfolded state. During the process of slider b1 sliding along the direction of B1 and in the opposite direction of B1, the sliding trajectory of slider b1 is a straight line.

[0080] By setting the engagement method between slider b1 and slide groove 203, the movement trajectory of the second door panel 302 is limited. On the one hand, by ensuring the reliability of the second door panel 302 during movement, the smoothness of the electronic device during folding is guaranteed, avoiding misalignment of the second door panel 302 during movement that could cause the electronic device to jam during folding. On the other hand, the high degree of fit between slider b1 and slide groove 203 simplifies the manufacturing process and helps reduce the production cost of the electronic device.

[0081] Continuing with Figures 6 and 7, in this implementation, slider b1 is a straight slider b11, which is tilted and tilted at a preset angle α relative to the first door panel 301 in a direction away from the battery cover 202.

[0082] In this implementation, an inclined straight groove 2031 can be provided to accommodate the straight slider b11. Along the width direction of the electronic device, one end of the straight groove 2031 is opposite to the end of the battery cover 202 used to house the second door panel 302, which is used to house the slider b1. The other end extends into the middle frame assembly 200 and is inclined away from the battery cover 202. The inclination angle of the straight groove 2031 can also be a preset angle α. In this way, the slider b1 can slide relative to the battery cover 202 into the middle frame assembly 200 along the inclined preset angle α. That is to say, the door panel body 3021, the slider b1, and the groove 203 are all arranged in a parallel relationship.

[0083] Of course, in other implementations, the tilt angle α of the straight slider b11 can also be other angles. That is to say, the straight slider b11 can also be set to be non-parallel to the door panel body 3021. The specific form of the slider b1 can be adjusted according to the overall shape of the foldable electronic device.

[0084] Figure 8 is a schematic diagram of another second door panel provided in an embodiment of this application.

[0085] In another feasible implementation, as shown in Figure 8, slider b1 is a curved slider b12, which is bent toward the battery cover 202.

[0086] In this implementation, a first arc groove 2032 can be provided to accommodate the curved slider b12. Along the width direction of the electronic device, one end of the first arc groove 2032 is opposite to the end of the battery cover 202 used to house the second door panel 302, and the other end extends into the middle frame assembly 200 and is symmetrically arranged with one end. The first arc groove 2032 and the curved slider b12 have the same bending direction, both bending towards the battery cover 202. Furthermore, the arc of the groove surface of the first arc groove 2032 is the same as the arc of the sliding surface of the curved slider b12, and their centers are the same. In other words, the first arc groove 2032 can be understood as being obtained by bending the straight groove 2031.

[0087] Unlike the aforementioned implementation, during the transition of the electronic device from an unfolded state to a fully folded state, slider b1 slides relative to connecting block 210 along the B1 direction within the slide groove 203. During the transition from a fully folded state to an unfolded state, slider b1 slides relative to connecting block 210 along the opposite direction of B1 within the slide groove 203. During both the B1 and opposite directions of sliding, the sliding trajectory of slider b1 is a curve.

[0088] Specifically, the selection of straight slider b11 and curved slider b12 is quite flexible. The tilt angle of straight slider b11 and the curvature of curved slider b12 can be adjusted according to the overall structure and parameters of the foldable electronic device.

[0089] It should be emphasized that since the second door panel 302 also rotates during the sliding process, the direction of B1 is a relative direction, not an absolute direction.

[0090] In one feasible implementation, continuing to refer to Figure 7, the battery cover 202 includes a bevel 202a disposed on one side for housing the second door panel 302. In the unfolded state of the electronic device, the bevel 202a slopes from the side closest to the door panel body 3021 to the side furthest from the door panel body 3021, to avoid obstructing the end of the door panel body 3021 housed within the mid-frame assembly 200. Along the thickness direction of the electronic device, the projection of the bevel 202a onto the folding screen covers the end of the door panel body 3021 housed within the mid-frame assembly 200.

[0091] Specifically, in the unfolded state of the electronic device, since the tilt angle β of the inclined surface 202a is less than or equal to the preset angle α, a certain clearance space is provided between the inclined surface 202a and the surface of the door panel body 3021 when the door panel body 3021 slides along the preset angle α into the middle frame assembly 200. The inclined surface 202a can play the role of avoiding the door panel body 3021. In other words, by setting the inclined surface 202a at the end of the battery cover 202 near the door panel body 3021, it is possible to avoid the door panel body 3021 from colliding with the battery cover 202 during the sliding process, effectively ensuring the smoothness of the second door panel 302 during the sliding process.

[0092] Figure 9 is a structural schematic diagram of a connector provided in an embodiment of this application; Figure 10 is a structural schematic diagram of a connector provided in an embodiment of this application.

[0093] Referring to Figures 9 and 10, the foldable electronic device also includes a connector 400. One end of the connector 400 is rotatably connected to the pivot assembly 100, and the other end is connected to the second door panel 302. During the rotation of the middle frame assembly 200, the connector 400 acts as a transmission mechanism between the middle frame assembly 200 and the second door panel 302. The connector 400 rotates synchronously with the middle frame assembly 200 and the second door panel 302. By providing the connector 400, the stability of the second door panel 302 during rotation can be effectively ensured, preventing the second door panel 302 from detaching.

[0094] The end of the connector 400 connected to the second door panel 302 can be positioned away from the slider b1. That is, the end of the connector 400 connected to the second door panel 302 is positioned opposite to the slider b1. Thus, during the rotation of the middle frame assembly 200, the force-bearing end of the connector 400 that drives the second door panel 302 to move and the slider b1 are located on opposite sides of the connecting portion 3022, ensuring even force distribution on the second door panel 302. This allows the door panel body 3021 to slide more smoothly into the middle frame assembly 200 under the influence of the connector 400. The connector 400 can be connected to either the door panel body 3021 of the second door panel 302 or to the connecting portion 3022 of the second door panel 302, thereby making efficient use of the internal installation space of the electronic device and contributing to its miniaturization.

[0095] For example, when the connector 400 is connected to the door panel body 3021, the connector 400 can be directly connected to the door panel body 3021, or it can be connected to the door panel body 3021 through other connecting parts. When the connector 400 is connected to the connecting part 3022, the connector 400 can be directly connected to the connecting part 3022, or it can be connected to the connecting part 3022 through other parts.

[0096] The pivot assembly 100 includes a rotating part 101, and a connector 400 is rotatably disposed on the rotating part 101. When the middle frame assembly 200 rotates, the connector 400 can rotate relative to the rotating part 101. Thus, during the rotation of the middle frame assembly 200, the connector 400 can drive the second door panel 302 to rotate relative to the first door panel 301.

[0097] In this implementation, the rotating part 101 is a first arcuate groove 101a, which can be formed on the base of the rotating shaft assembly 100. One end of the connector 400 can be an arcuate structure 401, which is adapted to the first arcuate groove 101a. The arcuate structure 401 is slidably disposed within the first arcuate groove 101a and can rotate relative to the first arcuate groove 101a. The other end of the connector 400 is rotatably connected to the second door panel 302. Thus, when the arcuate structure 401 is driven to rotate by the middle frame assembly 200, the arcuate structure 401 rotates relative to the base of the rotating shaft assembly 100, simultaneously driving the second door panel 302 to rotate relative to the base, thereby causing the second door panel 302 to rotate relative to the first door panel 301.

[0098] Figure 11 is a three-dimensional structural diagram of a connector provided in an embodiment of this application.

[0099] In one specific implementation, as shown in Figures 9 and 11, the arc structure 401 can be an arc structure with two end faces. In the unfolded state of the electronic device, one end face of the arc structure 401 faces the first door panel 301, and the other end face faces the second door panel 302, with the arc structure 401 bending towards both the first and second door panels 301. Similarly, the bending direction of the first arc groove 101a is the same as the bending direction of the arc structure 401, and the arc surface of the arc structure 401 has the same curvature and center as the sliding surface of the first arc groove 101a, achieving a fit between the two. The other end of the connector 400 can be a linkage structure 402, which can be rotatably connected to the second door panel 302 via a solid shaft. By providing a connector 400 with an arc structure 401 and a linkage structure 402, the connector 400 can rotate relative to the rotating shaft assembly 100 and also drive the second door panel 302 to rotate. The first arc groove 101a, which is adapted to the arc structure 401, can be directly opened on the base without the need for additional connecting parts. This effectively simplifies the structure of the pivot assembly 100, which is beneficial to the miniaturization of electronic devices. Moreover, since the installation space of the pivot assembly 100 is larger than that of traditional installation space, there is no problem of the groove affecting the strength of the base when the first arc groove 101a is opened on the base.

[0100] Referring again to Figure 11, there are two connectors 400. The two connectors 400 located on the two second door panels 302 are staggered along the height direction of the electronic device, which can reduce the size of the electronic device along the width direction of the second door panel 302, which is beneficial to the miniaturization of the electronic device.

[0101] Of course, in other feasible implementations, the number of connectors 400 can also be, for example, 4 or 6, or other values. The number of connectors 400 can be adjusted adaptively according to the size of the electronic device and the size of the second door panel 302.

[0102] For example, when there are 4 connectors 400, one connector 400 can be provided at each end of each second door panel 302 along the height direction of the electronic device; when there are 6 connectors 400, the distance between any two adjacent connectors 400 on each second door panel 302 is the same, so that the second door panel 302 is subjected to uniform force during rotation, ensuring the stability of the second door panel 302 during rotation.

[0103] It should be emphasized that the connecting part 3022 and the sliding groove 203 of the connecting block 210 are not shown in Figure 9 because this is to better demonstrate the specific structure of the connector 400. Figures 9 and 10 are cross-sectional views at different positions along the height of the electronic device. Because the foldable electronic device is quite wide when unfolded, only a portion of the foldable electronic device is shown to better demonstrate the structure between the folding battery cover 202 and the door panel assembly 300, and the complete structure of the device is not shown.

[0104] Figure 12 is a cross-sectional view of a foldable electronic device in a semi-folded state according to an embodiment of this application; Figure 13 is a cross-sectional view of a foldable electronic device in a fully folded state according to an embodiment of this application.

[0105] To facilitate understanding of the movement process of the second door panel 302 provided in the embodiments of this application, the movement process of the second door panel 302 will be described below.

[0106] Figures 6, 10 to 13 show the unfolded, half-folded, and fully folded states of the electronic device.

[0107] Referring to Figures 6, 10, 11, and 12, during the transition of the electronic device from an unfolded state to a semi-folded state, one mid-frame assembly 200 rotates relative to the first door panel 301 along direction C1 towards the other mid-frame assembly 200, while the other mid-frame assembly 200 rotates relative to the first door panel 301 along direction C2, gradually decreasing the distance between the two mid-frame assemblies 200. Directions C1 and C2 can be two directions symmetrically arranged about the pivot assembly 100. For example, when C1 is clockwise, C2 is counterclockwise.

[0108] During the rotation of a mid-frame assembly 200 along the C1 direction, a connector 400 located on the same side as the mid-frame assembly 200 also drives a second door panel 302 to rotate along the C1 direction. During the rotation of the connector 400, the arcuate structure 401 of the connector 400 slides outward from the first arcuate groove 101a along the C1 direction. As the degree of folding of the electronic device increases, the portion of the arcuate structure 401 located in the first arcuate groove 101a gradually decreases. Thus, the connector 400 experiences both rotational and sliding movements relative to the first door panel 301 within the first arcuate groove 101a. During the rotation of the second door panel 302 caused by the connector 400, the slider b1 of the second door panel 302 slides along the B1 direction within the groove 203 of the connecting block 210. As the degree of folding of the electronic device increases, the portion of the slider b1 sliding into the groove 203 gradually increases. Simultaneously, the second door panel 302 is also driven by the connector 400 to rotate along the C1 direction. In other words, the second door panel 302 also produces two movement states, sliding and rotating, when the electronic device is folded.

[0109] The other mid-frame assembly 200 rotates in the same manner as the aforementioned mid-frame assembly 200. Specifically, when the other mid-frame assembly 200 rotates along the C2 direction, the connecting piece 400 connected to it also rotates along the C2 direction, causing the slider b1 in the second door panel 302 connected to it to slide along the B2 direction while simultaneously rotating along the C2 direction. The B1 and B2 directions can be two directions symmetrically arranged about the pivot assembly 100.

[0110] Specifically, during the movement of the second door panel 302, the second door panel 302 approaches one side of the first door panel 301 and gradually moves from a position flush with the end of the first door panel 301 to a position diagonally above the end of the first door panel 301.

[0111] As shown in Figures 12 and 13, during the process of the electronic device transitioning from a semi-folded state to a fully folded state, one mid-frame assembly 200 continues to rotate relative to the first door panel 301 along the C1 direction toward the other mid-frame assembly 200, and the other mid-frame assembly 200 continues to rotate relative to the first door panel 301 along the C2 direction. The distance between the two mid-frame assemblies 200 continues to gradually decrease until the electronic device is in a fully folded state, at which point the distance between the two mid-frame assemblies 200 gradually decreases to zero.

[0112] As the second door panel 302 continues to rotate, the end of the second door panel 302 closest to the first door panel 301 gradually moves from a position diagonally above the first door panel 301 towards directly above it. Meanwhile, the distance between the end of the second door panel 302 retracted within the middle frame assembly 200 and the slide groove 203 gradually increases. This continues until the electronic device is fully folded, with the end of the second door panel 302 closest to the first door panel 301 directly above it, and the second door panel 302 is completely retracted into the middle frame assembly 200.

[0113] In one feasible implementation, continuing with Figures 9 and 11, along the height direction of the electronic device, the end of the connector 400 that connects to the second door panel 302 is positioned opposite to the slider b1. That is, the slider b1 and the connector 400 are located on opposite sides of the connecting portion 3022. This allows for a reasonable arrangement of the positional relationship between the second door panel 302 and the connector 400, making efficient use of the internal installation space of the electronic device and facilitating its thinning process.

[0114] During the transition of the electronic device from a fully folded state to an unfolded state, it is only necessary to control one mid-frame assembly 200 to rotate in the opposite direction of C1, and the other mid-frame assembly 200 to rotate in the opposite direction of C2. As the mid-frame assembly 200 rotates, the two sliders b1 slide in the opposite directions of B1 and B2, respectively. The portion of slider b1 within the groove 203 gradually decreases, while the portion of slider b1 outside the groove 203 gradually increases.

[0115] Figure 14 is a schematic diagram of another connector provided in the embodiment of this application; Figure 15 is a schematic diagram of another connector provided in the embodiment of this application; Figure 16 is a three-dimensional structural schematic diagram of another connector provided in the embodiment of this application.

[0116] In another feasible implementation, referring to Figures 6 and 14 to 16, the rotating part 101 is a fixed shaft 101b, which extends along the height direction of the electronic device. In this implementation, the connector 400 adapted to the fixed shaft 101b is provided with a guide groove 403, and the fixed shaft 101b is disposed within the guide groove 403. During the rotation of the second door panel 302, the fixed shaft 101b remains stationary with respect to the base.

[0117] Specifically, the fixed shaft 101b can be mounted on the base of the middle frame assembly 200. During the rotation of the middle frame assembly 200, the base, fixed shaft 101b, and first door panel 301 remain stationary. The guide groove 403 can be a groove structure with a guiding function. During the rotation of the middle frame assembly 200, the middle frame assembly 200 can drive the connector 400 to rotate around the fixed shaft 101b. Since the second door panel 302 and the connector 400 remain relatively stationary during rotation, and the second door panel 302 also slides within the slide groove 203, the guide groove 403 also slides relative to the fixed shaft 101b during the rotation of the second door panel 302. By setting the guide groove 403 to cooperate with the fixed shaft 101b, the mounting hole of the fixed shaft 101b can be opened on the base, eliminating the need for additional connecting parts, effectively simplifying the structure of the pivot assembly 100, and facilitating the miniaturization of electronic devices. Meanwhile, the installation space of the rotating shaft assembly 100 is larger than that of the traditional space, so there is no problem of affecting the strength of the base by opening installation holes in the base.

[0118] It should be emphasized that the specific structures such as the connecting part 3022 and the sliding groove 203 of the connecting block 210 are not shown in Figure 14, in order to better illustrate the specific structure of the connector 400. Figures 14 and 15 are cross-sectional views at different positions along the height of the electronic device.

[0119] Referring again to Figure 16, there are two connectors 400. These two connectors 400, located on the two second door panels 302, are staggered along the height direction of the electronic device. This reduces the size of the electronic device along the width direction of the second door panel 302, which is beneficial for miniaturization. In this implementation, a clearance groove b2 is also provided on the door panel body 3021. The clearance groove b2 is used to avoid the end of the guide groove 403. Thus, while ensuring the strength of the door panel body 3021, the installation height of the guide groove 403 along the thickness direction of the electronic device is effectively reduced, which is beneficial for miniaturization.

[0120] Of course, in other feasible implementations, the number of connectors 400 can also be, for example, 4 or 6, or other values. The number of connectors 400 can be adjusted adaptively according to the size of the electronic device and the size of the second door panel 302.

[0121] For example, when there are four connectors 400, one connector 400 is provided at each end of each second door panel 302 along the height direction of the electronic device. When there are six connectors 400, the distance between any two adjacent connectors 400 on each second door panel 302 is the same, so that the second door panel 302 is subjected to uniform force during rotation, ensuring the stability of the second door panel 302 during rotation.

[0122] Figure 17 is a cross-sectional view of another foldable electronic device provided in the present application in a semi-folded state; Figure 18 is a cross-sectional view of another foldable electronic device provided in the present application in a fully folded state.

[0123] To facilitate understanding of the movement process of the second door panel 302 provided in the embodiments of this application, the movement process of the second door panel 302 will be described below.

[0124] Figures 6, 14, 15, 17, and 18 illustrate the electronic device in its unfolded, half-folded, and fully folded states, respectively.

[0125] As shown in Figures 6, 14, 15, and 17, during the process of the electronic device transitioning from an unfolded state to a semi-folded state, one mid-frame assembly 200 rotates relative to the first door panel 301 along the C1 direction toward the other mid-frame assembly 200, and the other mid-frame assembly 200 rotates relative to the first door panel 301 along the C2 direction, and the distance between the two mid-frame assemblies 200 gradually decreases.

[0126] As a mid-frame assembly 200 rotates along direction C1, a connector 400 located on the same side as the mid-frame assembly 200 drives a second door panel 302 to rotate along direction C1. During the rotation of the connector 400, its guide groove 403 also rotates along direction C1. In the unfolded state of the electronic device, one end of the guide groove 403 is connected to the second door panel 302, and the other end is retracted into the hinge assembly 100.

[0127] Specifically, the guide groove 403 may include a first end c1 and a second end c2, with the first end c1 connected to the second door panel 302. In the unfolded state of the electronic device, the first end c1 is close to the first door panel 301, and the fixed shaft 101b abuts against the first end c1, while the second end c2 is away from the first door panel 301. During the rotation of the guide groove 403, the guide groove 403 rotates around the fixed shaft 101b, and the guide groove 403 slides relative to the fixed shaft 101b along the slotting direction D1. The fixed shaft 101b also slides relative to the guide groove 403 along the D1 direction. During the sliding of the guide groove 403, the fixed shaft 101b also moves relative to the second door panel 302 along the D1 direction, gradually moving from the first end c1 to the second end c2. As the degree of folding of the electronic device increases, the distance between the fixed shaft 101b and the first end c1 gradually increases until the electronic device is folded halfway, at which point the fixed shaft 101b can be located at the center of the guide groove 403, meaning the distance between the first end c1 and the fixed shaft 101b is equal to the distance between the second end c2 and the fixed shaft 101b. Thus, the connector 400 experiences both rotational and sliding movements relative to the fixed shaft 101b. During the rotation of the second door panel 302 caused by the connector 400, the slider b1 of the second door panel 302 slides along the B1 direction within the groove 203 of the connecting block 210. As the degree of folding of the electronic device increases, the portion of the slider b1 sliding into the groove 203 gradually increases. Simultaneously, the second door panel 302 is also rotated along the C1 direction by the connector 400. In other words, the second door panel 302 also experiences both sliding and rotational movements when the electronic device is folded.

[0128] Similarly, the other middle frame assembly 200 rotates in the same way as the aforementioned middle frame assembly 200. Specifically, when the other middle frame assembly 200 rotates in the C2 direction, the connector 400 on the same side also rotates in the C2 direction. At the same time, the other connector 400 slides relative to the fixed axis 101b in the D2 direction. While the slider b1 in the second door panel 302 slides in the B2 direction, it also drives it to rotate in the C2 direction.

[0129] It should be emphasized that, since the second door panel 302 is also rotating during the sliding of the connector 400 relative to the fixed shaft 101b, the D1 direction and the D2 direction are not absolute directions, but relative directions. The D1 direction and the D2 direction can be symmetrical about the rotating shaft assembly 100.

[0130] Referring again to Figures 17 and 18, during the transition of the electronic device from a semi-folded state to a fully folded state, one mid-frame assembly 200 continues to rotate relative to the first door panel 301 along direction C1, moving closer to the other mid-frame assembly 200. The other mid-frame assembly 200 continues to rotate relative to the first door panel 301 along direction C2, and the distance between the two mid-frame assemblies 200 gradually decreases. Until the electronic device is in a fully folded state, the distance between the two mid-frame assemblies 200 gradually decreases to zero.

[0131] As the second door panel 302 continues to rotate, the end of the second door panel 302 closest to the first door panel 301 gradually moves from a position diagonally above the first door panel 301 towards directly above it. Meanwhile, the distance from the end of the second door panel 302 housed within the middle frame assembly 200 to the slide groove 203 gradually increases. During this process, the guide groove 403 slides relative to the fixed shaft 101b. As the degree of folding of the electronic device increases, the first end c1 of the guide groove 403 gradually moves away from the fixed shaft 101b, and the second end c2 of the guide groove 403 gradually moves closer to the fixed shaft 101b, until the fixed shaft 101b and the second end c2 come into contact, at which point the electronic device is in a fully folded state.

[0132] During the transition of the electronic device from a fully folded state to an unfolded state, only one mid-frame assembly 200 needs to be rotated in the opposite direction of C1, and the other mid-frame assembly 200 needs to be rotated in the opposite direction of C2. During the rotation of the mid-frame assembly 200, one connector 400 slides relative to its adjacent second door panel 302 in the opposite direction of D1, and the other connector 400 slides relative to its adjacent second door panel 302 in the opposite direction of D2. The sliders b1 in the two second door panels 302 slide in the opposite directions of B1 and B2, respectively. The portion of slider b1 within the groove 203 gradually decreases, and the portion of slider b1 outside the groove 203 gradually increases.

[0133] Figure 19 is a schematic diagram of the structure of a foldable electronic device in a fully folded state according to an embodiment of this application;

[0134] Figure 20 is a schematic diagram of another foldable electronic device provided in the embodiment of this application in a fully folded state.

[0135] Referring to Figures 19 and 20, Figure 19 is a structural schematic corresponding to Figure 13, and Figure 20 is a structural schematic corresponding to Figure 18. In the implementations shown in Figures 13 and 19, the second door panel 302 is not parallel to the battery cover 202, while in the implementations shown in Figures 18 and 20, the second door panel 302 is parallel to the battery cover 202. That is, in the fully folded state of the electronic device provided in this application embodiment, the positional relationship between the second door panel 302 and the battery cover 202 is not unique. This allows for flexible arrangement of the second door panel 302 according to the installation space of the electronic device, making reasonable use of the installation space and facilitating the miniaturization of the electronic device. Specifically, the movement path of the second door panel 302 can be limited by a preset angle α and the structural form of the connector 400, thereby adjusting the specific positional relationship between the second door panel 302 and the battery cover 202 in the fully folded state of the electronic device.

[0136] In some feasible implementations, the guide groove 403 can be a waist-shaped groove. Waist-shaped grooves are simple to cut and have good guiding function; they only need to be cut inside the connector 400. The waist-shaped groove can be a straight waist-shaped groove or a curved waist-shaped groove.

[0137] Referring again to Figures 14 and 17, in both implementations, the guide groove 403 is a straight-waisted groove. In the unfolded state of the electronic device, one end of the straight-waisted groove is connected to the second door panel 1032, and the other end is housed inside the hinge assembly 100. That is, the straight-waisted groove is inclined relative to the central axis of the hinge assembly 100. Alternatively, it can be understood that the straight-waisted groove is inclined along the height direction of the electronic device, with the end closer to the first door panel 301 towards the second door panel 302.

[0138] When using straight waist-shaped grooves, the sliding trajectories of the two straight waist-shaped grooves relative to the fixed shaft 101b along the D1 and D2 directions are both straight lines.

[0139] Referring again to Figure 18, the guide groove 403 is a curved waist-shaped groove. In the unfolded state of the electronic device, one end of the curved waist-shaped groove is connected to the second door panel 302, and the other end is housed inside the pivot assembly. The curved waist-shaped groove can be understood as being obtained by bending a straight waist-shaped groove. The curved waist-shaped groove bends towards the connecting part 3022.

[0140] When using a curved waist-shaped groove, the sliding path of the curved waist-shaped groove relative to the fixed axis 101b along the D1 and D2 directions is curved.

[0141] Specifically, the choice of waist-shaped slot can be adjusted according to the overall size and parameters of the foldable electronic device.

[0142] Of course, in other feasible implementations, the guide groove 403 can also be other forms of groove structure, such as S-shaped groove, C-shaped groove and other shapes of groove (not shown in the figure), as long as it can limit the movement path of the second door panel 302. The specific structural form of the guide groove 403 is not limited in this application embodiment.

[0143] It should be noted that, upon considering the specification and practicing the application disclosed herein, those skilled in the art will readily conceive of other embodiments of this application. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein.

[0144] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The true scope is indicated by this application.

Claims

1. A foldable electronic device, characterized in that, include: A hinge assembly (100); a mid-frame assembly (200); the mid-frame assembly (200) includes a mid-frame body (201) and a battery cover (202); the mid-frame body (201) is rotatably disposed on one side of the hinge assembly (100); the battery cover (202) is fastened to the mid-frame body (201) along the thickness direction of the electronic device; a door panel assembly (300); the door panel assembly (300) includes a first door panel (301) and a second door panel (302); the first door panel (301) is fastened to the hinge assembly (100) along the thickness direction of the electronic device, and the first... The door panel (301) and the battery cover (202) are located on the same side of the electronic device; the second door panel (302) is disposed between the pivot assembly (100) and the middle frame body (201), and the second door panel (302) can rotate with the middle frame body (201); one end of the second door panel (302) is close to the first door panel (301), and the other end is stored inside the middle frame assembly (200); when the electronic device is in the unfolded state, the second door panel (302) is tilted at a preset angle relative to the first door panel (301) away from the battery cover (202).

2. The foldable electronic device according to claim 1, characterized in that, The first door panel (301) is flush with the battery cover (202); or along the thickness direction of the electronic device, the first door panel (301) protrudes from the battery cover (202) on the side opposite to the middle frame body (201).

3. The foldable electronic device according to claim 2, characterized in that, The second door panel (302) also includes a slider (b1) on the side opposite to the battery cover (202); the middle frame assembly (200) also includes a groove (203), the slider (b1) slides in the groove (203), and when the middle frame assembly (200) rotates, the slider (b1) slides in the groove (203) to drive the second door panel (302) to rotate relative to the first door panel (301).

4. The foldable electronic device according to claim 3, characterized in that, The slide groove (203) includes a straight slide groove (2031) or a first arc groove (2032); when the slide groove (203) includes a straight slide groove (2031), along the width direction of the electronic device, one end of the straight slide groove (2031) is opposite to the end of the battery cover (202) used to accommodate the second door panel (302), and the other end is inclined away from the battery cover (202); when the slide groove (203) includes a first arc groove (2032), along the width direction of the electronic device, one end of the first arc groove (2032) is opposite to the end of the battery cover (202) used to accommodate the second door panel (302), the other end of the first arc groove (2032) is symmetrically arranged with one end of the first arc groove (2032), and the first arc groove (2032) is bent toward the battery cover (202).

5. The foldable electronic device according to claim 4, characterized in that, Also includes: Connector (400); The pivot assembly (100) further includes a rotating part (101), one end of the connector (400) is rotatably engaged with the rotating part (101), and the other end is connected to the second door panel (302); When the middle frame assembly (200) rotates, the connector (400) drives the second door panel (302) to rotate relative to the rotating part (101).

6. The foldable electronic device according to claim 5, characterized in that, The rotating part (101) includes a second arc groove (101a); one end of the connector (400) is rotatably disposed in the second arc groove (101a) and can slide along the second arc groove (101a), and the other end is rotatably connected to the second door panel (302); when the middle frame assembly (200) rotates, the connector (400) slides in the second arc groove (101a) and rotates relative to the second arc groove (101a) to drive the second door panel (302) to rotate relative to the first door panel (301).

7. The foldable electronic device according to claim 6, characterized in that, The end of the connector (400) that connects to the second door panel (302) is positioned opposite to the slider (b1) along the height direction of the electronic device.

8. The foldable electronic device according to claim 5, characterized in that, The rotating part (101) includes a fixed shaft (101b); the fixed shaft (101b) extends along the height direction of the electronic device; the connector (400) includes a guide groove (403), and the fixed shaft (101b) is disposed in the guide groove (403); when the middle frame assembly (200) rotates, the fixed shaft (101b) slides relative to the second door panel (302) along the guide groove (403), and the connector (400) rotates relative to the fixed shaft (101b) to drive the second door panel (302) to rotate relative to the first door panel (301).

9. The foldable electronic device according to claim 8, characterized in that, The guide groove (403) includes a waist-shaped groove, which can be a straight waist-shaped groove or a curved waist-shaped groove. When the waist-shaped groove is a straight waist-shaped groove, in the unfolded state of the electronic device, one end of the straight waist-shaped groove is connected to the second door panel (302), and the other end is housed inside the pivot assembly (100). When the waist-shaped groove is a curved waist-shaped groove, in the unfolded state of the electronic device, one end of the curved waist-shaped groove is connected to the second door panel (302), and the other end is housed inside the pivot assembly (100), and the curved waist-shaped groove bends toward the slider (b1).

10. The foldable electronic device according to claim 5, characterized in that, The connector (400) in one of the second door panels (302) and the connector (400) in the adjacent second door panel (302) are offset along the height direction of the electronic device.

11. The foldable electronic device according to claim 5, characterized in that, The battery cover (202) includes a slope (202a) which is disposed on the side that houses the second door panel (302). The slope (202a) is used to avoid the second door panel (302). The inclination angle of the slope (202a) is less than or equal to the preset angle.

Images