Rotating mechanism, supporting device and electronic equipment

Abstract

The invention provides a rotating mechanism, a supporting device and electronic equipment, relates to the technical field of terminals, and can solve the problem that broken bright spots appear on a screen. The rotating mechanism comprises a base, at least one pair of swing arms, a first door plate, a second door plate and a shielding piece. Wherein the shielding piece is arranged on the base and covers at least part of the assembling holes in the base, so that the shielding piece is used for shielding the at least part of the assembling holes, and the folding screen is prevented from sinking towards the assembling holes.

Description

Technical Field

[0001] This application relates to the field of terminal technology, and in particular to a rotating mechanism, a support device, and an electronic device. Background Technology

[0002] Foldable electronic devices are electronic devices that can be folded and unfolded. Foldable electronic devices generally include a main body and a flexible display screen mounted on the main body. The main body can be folded or unfolded through its rotating mechanism, while the flexible display screen can be folded or unfolded along with the main body by bending its flexible parts.

[0003] However, when the foldable electronic device is unfolded and displaying images, the screen above the rotating mechanism may experience display problems when subjected to impacts (such as knuckle taps or stylus clicks). Summary of the Invention

[0004] This application provides a rotating mechanism, a support device, and an electronic device that can solve the problem of broken bright spots appearing on the screen.

[0005] In a first aspect, embodiments of this application provide a rotating mechanism. The rotating mechanism includes: a base, at least one pair of swing arms, a first door panel, a second door panel, and a blocking plate; wherein the first door panel and the second door panel each have a supporting surface, and the first door panel and the second door panel are respectively located on opposite sides of the base; in each pair of swing arms, two swing arms are respectively located on opposite sides of the base and are rotatably connected to the base, one swing arm being located on the side of the first door panel facing away from the supporting surface of the first door panel, and the other swing arm being located on the side of the second door panel facing away from the supporting surface of the second door panel; the blocking plate is disposed on the base, and the surface of the base facing the blocking plate has mounting holes; in the thickness direction of the rotating mechanism, the blocking plate is located within the coverage area of ​​the base and covers at least a portion of the mounting holes on the base; when the rotating mechanism is in the unfolded state, the surface of the blocking plate facing away from the base is coplanar with the supporting surfaces of the first door panel and the second door panel.

[0006] For example, the base may include a first base and a second base, with a shield disposed on the first base.

[0007] For example, the supporting surface of the first door panel can be the fourth supporting surface as described below, and the supporting surface of the second door panel can be the fifth supporting surface as described below.

[0008] For example, the mounting clearance may include mounting holes and / or mounting gaps as described below. The mounting hole may include a first mounting hole and a second mounting hole as described below, and the mounting gap may include a first mounting gap and a second mounting gap as described below.

[0009] In this way, when the electronic device using this rotating mechanism is in the unfolded state, and the folded screen at the mounting hole and / or mounting gap position is impacted, the shielding plate can prevent the folded screen at that position from denting downwards, thereby preventing relative displacement between the film layers at the corresponding position in the folded screen, and preventing the organic light-emitting material at the corresponding position from being squeezed by external force. This solves both the problem of uneven light output caused by relative displacement between film layers and the problem of uneven light emission caused by external force squeezing of the organic light-emitting material. Thus, it can prevent bright spots from appearing on the folded screen at at least some of the mounting holes and / or mounting gap positions. Furthermore, the surface of the shielding plate facing away from the second base is coplanar with the support surfaces of the first and second door panels. Thus, the coplanar surface of the shielding plate facing away from the second base, together with the support surfaces of the first and second door panels, forms a new support surface, which supports the third part of the folded screen when the electronic device is unfolded, ensuring the flatness of the unfolded screen.

[0010] According to the first aspect, a groove is provided on the base, and a shielding plate is embedded in the groove. In this way, when the shielding plate is used to cover the mounting holes and / or mounting gaps on the first base, it is possible to avoid introducing new assembly gaps.

[0011] According to the first aspect, or any implementation of the first aspect above, the shielding plate and the groove are detachably connected. This ensures that the first base and the second base, and the base and the shaft cover are detachable.

[0012] According to the first aspect, or any implementation of the first aspect above, the base includes a first base and a second base stacked in the thickness direction of the rotating mechanism, the first base and the second base being fixedly connected, and a shielding plate being disposed on the first base.

[0013] According to the first aspect, or any implementation of the first aspect above, the assembly hole includes a mounting hole, the mounting hole includes a first mounting hole, and the first base and the second base are fixedly connected by a first fastener, the first fastener being inserted into the first mounting hole. Thus, the first base and the second base are now fixedly and detachably connected.

[0014] According to the first aspect, or any implementation thereof, the second base includes a plurality of lower base segments spaced apart along the length of the rotating mechanism. In the thickness direction of the rotating mechanism, a first mounting hole is located in the region of each lower base segment. Each lower base segment is fixedly connected to the first base by at least one first fastener. This allows each lower base segment to be individually fixed to and detachably connected to the first base, enabling individual disassembly of the corresponding swing arm.

[0015] According to the first aspect, or any implementation of the first aspect above, the rotating mechanism further includes a shaft cover located on the side of the second base opposite to the first base; the mounting hole further includes a second mounting hole, located in the region between the lower base segments in the thickness direction of the rotating mechanism; the first base and the shaft cover are fixedly connected by a second fastener, the second fastener passing through the second mounting hole; and / or, the shaft cover is fixedly connected to the first base and the lower base segments by at least a portion of the first fastener. Thus, while achieving a fixed and detachable connection between the first base and the lower base segments, the shaft cover is also fixed and detachably connected to the entire base.

[0016] According to the first aspect, or any implementation of the first aspect above, the shielding plate covers all the mounting holes in the thickness direction of the rotating mechanism. This avoids the problem of bright spots appearing on the screen due to the mounting holes.

[0017] According to the first aspect, or any implementation of the first aspect above, the swing arm includes a main swing arm and / or a damping swing arm, and the assembly clearance includes the installation clearance between the swing arm and the base.

[0018] According to the first aspect, or any implementation of the first aspect above, when the swing arm includes a main swing arm, the installation gap includes a first installation gap; a pair of main swing arms includes two first-type main swing arms, one end of which is provided with an arc-shaped rib, and the base is provided with an arc-shaped groove. The arc-shaped groove passes through the interior of the base and penetrates the bottom surface of the groove, forming a groove opening on the bottom surface of the groove. The arc-shaped rib can slide in the arc-shaped groove; when the rotating mechanism is in the unfolded state, the arc-shaped rib does not protrude from the bottom surface of the groove, and the gap between the arc-shaped rib and the arc-shaped groove at the groove opening is the first installation gap. In this way, without affecting the movement of the main swing arm, the installation gap between the main swing arm and the first base can be completely covered, avoiding the appearance of bright spots on the folding screen at the corresponding position.

[0019] For example, the first type of main swing arm may include a first main swing arm and a second main swing arm as described below; the arc-shaped rib may include a first arc-shaped rib and a second arc-shaped rib as described below; the arc-shaped slide may include a first arc-shaped slide and a second arc-shaped slide as described below.

[0020] According to the first aspect, or any implementation of the first aspect above, when the swing arm includes a main swing arm, the installation gap includes a second installation gap; a pair of main swing arms includes two second-type main swing arms, one end of each second-type main swing arm is provided with a hinge block, and the hinge block is provided with an arc-shaped rib on each of its two opposite outer sides along the length direction of the rotating mechanism, and the center lines of the two arc-shaped ribs are collinear and parallel to the length direction of the rotating mechanism; a hinge groove is provided on the side of the base facing the second-type main swing arm, and the hinge groove forms a notch on the base; an arc-shaped sliding groove is provided on each of the two opposite inner walls of the hinge groove along the length direction of the rotating mechanism, and the arc-shaped sliding grooves are... The center lines are collinear and parallel to the length direction of the rotating mechanism; the arc-shaped groove penetrates the bottom surface of the groove, forming a groove opening on the bottom surface of the groove. The hinge groove can accommodate the hinge block, and the arc-shaped rib can slide in the arc-shaped groove. When the rotating mechanism is in the unfolded state, at least a portion of the hinge block and the arc-shaped rib do not protrude from the bottom surface of the groove. The gap between the hinge block and the hinge groove at the notch, and the gap between the arc-shaped rib and the arc-shaped groove at the groove opening, constitute the second installation gap. In the area of ​​the base corresponding to the second type of main swing arm, along the thickness direction of the rotating mechanism, the groove is located in the area between the center lines of the arc-shaped ribs of the two second type of main swing arms. In this way, without affecting the movement of the main swing arm, the installation gap between the main swing arm and the first base can be covered to the greatest extent, avoiding the appearance of bright spots on the folding screen at the corresponding position.

[0021] For example, the second type of main swing arm may include the third main swing arm and the fourth main swing arm as described below; the hinge block may include the first hinge block and the second hinge block as described below; the hinge groove may include the first hinge groove and the second hinge groove as described below; the arc-shaped rib may include the third arc-shaped rib and the fourth arc-shaped rib as described below; the arc-shaped slide may include the third arc-shaped slide and the fourth arc-shaped slide as described below.

[0022] According to the first aspect, or any implementation of the first aspect above, when the swing arm includes a damping swing arm, the installation gap includes a third installation gap; a hinge block is provided at one end of the damping swing arm connected to the base, the hinge block has a pin hole extending along the length direction of the rotating mechanism, the base has a hinge groove on the side facing the damping swing arm, and the hinge groove forms a notch on the base; a pin is provided on each of the two opposing inner walls of the hinge groove along the length direction of the rotating mechanism; the hinge groove can accommodate the hinge block, the pin can rotate in the pin hole, and the gap between the hinge block and the hinge groove at the notch is the third installation gap; in the area of ​​the base corresponding to the damping swing arm, along the thickness direction of the rotating mechanism, the groove is located in the area between the two notches; or, the area between the two notches does not have a groove. This avoids unnecessary trenching and saves materials.

[0023] For example, the damping swing arm may include a first damping swing arm and a second damping swing arm as described below; the hinge block may include a third hinge block and a fourth hinge block as described below; the hinge slot may include a third hinge slot and a fourth hinge slot as described below; and the pin may include a fifth pin and a sixth pin as described below.

[0024] According to the first aspect, or any implementation of the first aspect above, at least one flared groove is formed on the support surface of the base. The flared groove is located at at least one end of the base in the length direction of the rotating mechanism, and the flared opening of the flared groove is located on the end face of the base in the length direction of the rotating mechanism. In the thickness direction of the rotating mechanism, a shielding piece covers the flared groove. In this way, the function of the flared groove can be guaranteed while preventing the appearance of bright spots on the screen.

[0025] Secondly, embodiments of this application also provide a support device. The support device includes a first housing, a second housing, a first fixed bracket, a second fixed bracket, and a rotation mechanism of the first aspect or any implementation thereof. The first fixed bracket is fixed to the first housing, the second fixed bracket is fixed to the second housing, a first door panel and a swing arm are both connected to the first fixed bracket, and the second door panel and another swing arm are both connected to the second fixed bracket.

[0026] For example, the first fixing bracket is integrally formed with the first housing, and the second fixing bracket is integrally formed with the second housing.

[0027] For example, the rotating mechanism may include a first fixed bracket and a second fixed bracket as described below.

[0028] Thirdly, embodiments of this application also provide an electronic device. This electronic device includes a foldable screen and a support device as described in the second aspect above, with the foldable screen mounted on the support device. Attached Figure Description

[0029] Figure 1 A structural diagram of an electronic device in an unfolded state, provided in an embodiment of this application;

[0030] Figure 2 for Figure 1 The diagram shows the structure of the electronic device in a folded state.

[0031] Figure 3 for Figure 1 A perspective view of the support device in the shown electronic device;

[0032] Figure 4 A structural diagram of a rotating mechanism provided in an embodiment of this application;

[0033] Figure 5 for Figure 4A structural diagram of a rotating mechanism in region D;

[0034] Figure 6 for Figure 5 An exploded view of the rotating mechanism shown.

[0035] Figure 7 for Figure 5 The rotating mechanism shown is in its unfolded state, with a cross-sectional view along the AA direction.

[0036] Figure 8 for Figure 5 The rotating mechanism shown is in a cross-sectional view along the AA direction in its folded state;

[0037] Figure 9 For electronic devices Figure 5 The rotating mechanism shown is a cross-sectional view along the AA direction in its unfolded state;

[0038] Figure 10 For electronic devices Figure 5 The rotating mechanism shown is a cross-sectional view along the AA direction in the folded state;

[0039] Figure 11 for Figure 5 The rotating mechanism shown is in its unfolded state, with a cross-sectional view along the CC direction.

[0040] Figure 12 for Figure 5 The rotating mechanism shown is in a cross-sectional view along the CC direction in its folded state;

[0041] Figure 13 for Figure 5 The rotating mechanism shown is in its unfolded state, with a cross-sectional view along the BB direction.

[0042] Figure 14 for Figure 5 The rotating mechanism shown is in a cross-sectional view along the BB direction in the folded state;

[0043] Figure 15 for Figure 4 A structural diagram of another rotating mechanism in the middle region D;

[0044] Figure 16 A structural diagram of another rotating mechanism provided in an embodiment of this application;

[0045] Figure 17 for Figure 16 The diagram shown below shows the structure of the rotating mechanism with the obstruction plate hidden.

[0046] Figure 18 for Figure 16 The rotating mechanism shown is in its unfolded state, with a cross-sectional view along the A'-A' direction.

[0047] Figure 19 for Figure 16 The rotating mechanism shown is in a cross-sectional view along the A'-A' direction in the folded state;

[0048] Figure 20 for Figure 16 The rotating mechanism shown is in its unfolded state, with a cross-sectional view along the C'-C' direction.

[0049] Figure 21 for Figure 16 The rotating mechanism shown is in a cross-sectional view along the C'-C' direction in the folded state;

[0050] Figure 22 for Figure 16 The rotating mechanism shown is in its unfolded state, with a cross-sectional view along the B'-B' direction.

[0051] Figure 23 for Figure 16 The rotating mechanism shown is in a cross-sectional view along the B'-B' direction in the folded state.

[0052] Figure label:

[0053] 100. Electronic devices;

[0054] 10. Support device; 11. First housing; 12. Second housing; 13. Rotating mechanism;

[0055] 20. Foldable screen; 21. Part 1; 22. Part 2; 23. Part 3;

[0056] 30. Base; 301. First arc-shaped slide groove; 302. Second arc-shaped slide groove; 303. First hinge groove; 304. Second hinge groove; 31. First base; 310. Assembly hole; 311. Mounting hole; 312. Mounting clearance; 313. Trumpet-shaped groove; 314. Groove; 32. Second base; 321. First lower base section; 322. Second lower base section;

[0057] 41. First door panel; 42. Second door panel;

[0058] 51. First main swing arm; 511. First arc-shaped rib; 52. Second main swing arm; 521. Second arc-shaped rib; 53. First damping swing arm; 531. Third hinge block; 54. Second damping swing arm; 541. Fourth hinge block; 55. Third main swing arm; 551. First hinge block; 56. Fourth main swing arm; 561. Second hinge block;

[0059] 61. First fixed bracket; 62. Second fixed bracket;

[0060] 70. Shaft cover;

[0061] 80. Masking plate. Detailed Implementation

[0062] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0063] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0064] The terms "first" and "second," etc., used in the specification and claims of this application are used to distinguish different objects, not to describe a specific order of objects. For example, "first target object" and "second target object," etc., are used to distinguish different target objects, not to describe a specific order of target objects.

[0065] 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 design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0066] In the description of the embodiments in this application, unless otherwise stated, "multiple" means two or more. For example, multiple processing units means two or more processing units; multiple systems means two or more systems.

[0067] This application provides an electronic device, which is a type of electronic device with a foldable screen. Specifically, the electronic device includes, but is not limited to, mobile phones, tablet personal computers, laptop computers, personal digital assistants (PDAs), personal computers, laptops, in-vehicle devices, and wearable devices (such as watches).

[0068] Figure 1 This is a structural diagram of the electronic device provided in the embodiments of this application when it is in an unfolded state. (Refer to...) Figure 1As shown, this embodiment uses a foldable mobile phone as an example for explanation. Figure 1 The electronic device 100 is in an unfolded state. The electronic device 100 includes a support device 10 and a folding screen 20.

[0069] Understandable, Figure 1 The electronic device 100 is shown only schematically, and the actual shape, size, location, and construction of these components are not subject to change. Figure 1 Restrictions.

[0070] The foldable screen 20 can be used to display information and provide an interactive interface for users. In various embodiments of this application, the foldable screen 20 employs a flexible display screen, such as an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode (MLED) display screen, a micro organic light-emitting diode (MLED) display screen, a quantum dot light-emitting diode (QLED) display screen.

[0071] The foldable screen 20 can switch between an unfolded state and a folded state. In the folded state, the foldable screen 20 can be folded into a first part 21 and a second part 22. The foldable screen 20 also includes a third part 23 located between the first part 21 and the second part 22. When the foldable screen 20 is in the unfolded state, the first part 21, the second part 22, and the third part 23 are coplanar and face the same direction. In this state, a large-screen display can be achieved, providing users with richer information and a better user experience.

[0072] Figure 2 for Figure 1 The diagram shows the structure of the electronic device in its folded state. (Combined with...) Figure 1 and Figure 2 As shown, the electronic device 100 in the figure is in a folded state. When the foldable screen 20 is in a folded state, the third part 23 is in a bent state, and the first part 21 ( Figure 2 (not shown in the image) and Part 22 ( Figure 2(Not shown in the image) In this state, the folding screen 20 is not visible to the user, and the support device 10 protects the folding screen 20 from being scratched by hard objects.

[0073] The support device 10 is used to support the folding screen 20 and allows the folding screen 20 to switch between an unfolded state and a folded state. Figure 3 for Figure 1 A perspective view of the support device in the shown electronic device. (Refer to...) Figure 3 As shown, the support device 10 includes a first housing 11, a second housing 12, and a rotating mechanism 13. It is understood that... Figure 3 The support device 10 is shown only schematically, and the actual shape, size, position, and construction of these components are not subject to change. Figure 3 Restrictions.

[0074] The support device 10 has a support surface that can be used to support the folding screen 20. With the support of the support surface, the folding screen 20 can be made into a flat shape when unfolded, and the display surface of the folding screen 20 can be made flat.

[0075] One side of the first housing 11 is used for fixing and supporting. Figure 1 The first part 21 of the folding screen 20. Specifically, the first housing 11 has a first support surface M1, and the first housing 11 is fixed and supported by the first support surface M1. Figure 1 The first portion 21 of the folding screen 20. Exemplarily, the connection between the first support surface M1 and the first portion 21 includes, but is not limited to, adhesive bonding. One side of the second housing 12 is used for fixing and supporting. Figure 1 The second part 22 of the folding screen 20. Specifically, the second housing 12 has a second support surface M2, and the second housing 12 is fixed and supported by the second support surface M2. Figure 1 The second part 22 of the foldable screen 20. For example, the connection between the second support surface M2 and the second part 22 includes, but is not limited to, adhesive bonding. The rotation mechanism 13 supports the third part 23 of the foldable screen 20. Furthermore, the rotation mechanism 13 is connected between the first housing 11 and the second housing 12, which are rotatably connected via the rotation mechanism 13, thereby enabling relative rotation between the first housing 11 and the second housing 12.

[0076] The interior of the first housing 11 forms a first receiving cavity. The interior of the second housing 12 forms a second receiving cavity. The first and second receiving cavities are used to accommodate electronic components of the electronic device 100, such as the motherboard, battery, camera module, speaker, and earpiece.

[0077] The first housing 11 can be a single structural unit or assembled from multiple parts. Similarly, the second housing 12 can be a single structural unit or assembled from multiple parts.

[0078] In some embodiments, the first housing 11 includes a first middle frame and a first back cover. A first support surface M1 is located on the first middle frame. The first back cover is fixed to the side of the first middle frame opposite to the first support surface M1. A first receiving cavity is formed between the first middle frame and the first back cover.

[0079] The second housing 12 includes a second middle frame and a second back cover. A second support surface M2 is located on the second middle frame. The second back cover is fixed to the side of the second middle frame opposite to the second support surface M2. A second receiving cavity is formed between the second middle frame and the second back cover.

[0080] In some embodiments, the rotating mechanism 13 is connected between the first middle frame of the first housing 11 and the second middle frame of the second housing 12. In other embodiments, the rotating mechanism 13 may also be connected between the first back cover of the first housing 11 and the second back cover of the second housing 12.

[0081] The above systematically describes the structure of the electronic device provided in the embodiments of this application, the function of each component, and the functional effects of the electronic device in the unfolded and folded states. The following describes the structural composition of the rotating mechanism and the function of each component in conjunction with the accompanying drawings.

[0082] Figure 4 The diagram shows the structure of the rotating mechanism in the unfolded state as provided in the embodiment of this application (only the main components of the rotating mechanism in region D are shown in the figure; other regions can be referred to region D). Figure 5 for Figure 4 Structural diagram of the rotating mechanism in the middle region D. Figure 6 for Figure 5 The exploded view of the rotating mechanism shown. Figure 7 for Figure 5 The rotating mechanism shown is in its unfolded state, with a cross-sectional view along the AA direction. (Refer to...) Figures 4 to 7 As shown, the rotating mechanism includes a base 30, at least one pair of main swing arms, a first door panel 41, a second door panel 42, a first fixed bracket 61, and a second fixed bracket 62. The two main swing arms in each pair are located on opposite sides of the base 30, the first door panel 41 and the second door panel 42 are located on opposite sides of the base 30, and the first fixed bracket 61 and the second fixed bracket 62 are located on opposite sides of the base 30. The first fixed bracket 61 is fixed to the first housing, and the second fixed bracket 62 is fixed to the second housing.

[0083] In each pair of main swing arms, one end of each of the two main swing arms is connected to both sides of the base 30, and one main swing arm can rotate relative to the base 30 about a first axis, while the other main swing arm can rotate relative to the base 30 about a second axis. Both the first and second axes are parallel to the length direction X of the rotating mechanism. The other end of one main swing arm is rotatably connected to a first fixed bracket 61, and the other end of the other main swing arm is rotatably connected to a second fixed bracket 62. The first fixed bracket 61 is fixedly connected to the first housing of the electronic device, and the second fixed bracket 62 is fixedly connected to the second housing of the electronic device. Thus, the first fixed bracket 61 can rotate relative to the base 30 via the corresponding connected main swing arms, and the second fixed bracket 62 can rotate relative to the base 30 via the corresponding connected main swing arms, allowing the first fixed bracket 61 and the second fixed bracket 62 to be relatively unfolded or folded, thereby allowing the first housing fixed to the first fixed bracket 61 and the second housing fixed to the second fixed bracket 62 to be relatively unfolded or folded.

[0084] The first door panel 41 is connected to the first fixed bracket 61 and a main swing arm, respectively, and the second door panel 42 is connected to the second fixed bracket 62 and another main swing arm, respectively.

[0085] Reference Figures 4 to 7 As shown, and in combination Figure 9 It is understood that when the electronic device is in the unfolded state, the first housing 11, the second housing 12, the base 30, the first door panel 41, and the second door panel 42 jointly support the folding screen. Specifically, the first support surface M1 of the first housing 11 supports the first part 21 of the folding screen, the second support surface M2 of the second housing 12 supports the second part 22 of the folding screen, and the third support surface M3 of the base 30, the fourth support surface M4 of the first door panel 41, and the fifth support surface M5 of the second door panel 42 jointly support the third part 23 of the folding screen.

[0086] Reference Figures 4 to 7 As shown, and in combination Figure 10 It is understood that when the electronic device is in a folded state, the first door panel 41 rotates relative to the base 30 under the drive of the first fixed bracket 61 and the corresponding main swing arm, and also rotates relative to the first fixed bracket 61. The second door panel 42 rotates relative to the base 30 under the drive of the second fixed bracket 62 and the corresponding main swing arm, and also rotates relative to the second fixed bracket 62. This causes the first door panel 41, the base 30 and the second door panel 42 to surround a clearance space formed by bending the third part 23 of the folding screen along a preset curvature. The first housing 11 and the second housing 12 are folded relative to each other, so that the first part 21 and the second part 22 of the folding screen are opposite each other.

[0087] It should be noted that the structure for achieving relative rotation between the main swing arms and the base 30 is not limited. For example, relative rotation can be achieved through a real axis or a virtual axis structure. Here, a real axis refers to a rotating axis around which the main swing arms rotate in the aforementioned rotating structure actually exists, while a virtual axis refers to a rotating axis around which the main swing arms rotate in the aforementioned rotating structure does not exist. In one embodiment, arc-shaped grooves are respectively formed on both sides of the base 30, and one end of each main swing arm is rotated through the arc-shaped grooves on both sides of the base 30 to achieve a virtual axis structure connection. The structure for achieving relative rotation between the main swing arms and the base 30 will be elaborated on in more detail below, and will not be discussed further here.

[0088] Furthermore, the connection method between each door panel and its corresponding fixed bracket and main swing arm is not limited, as long as the above functions can be achieved. In one example, each door panel and the fixed bracket achieve relative rotation through a sliding structure, or it can be understood that each door panel and the fixed bracket achieve relative rotation through a virtual axis structure. The sliding structure includes an arc-shaped slide rail and an arc-shaped slide groove that slide together. One of the arc-shaped slide rail and the arc-shaped slide groove is set in the door panel, and the other is set in the fixed bracket, so that the door panel slides relative to the fixed bracket along an arc-shaped trajectory, thereby allowing the door panel to rotate relative to the fixed bracket around a third axis. The center of the arc-shaped trajectory is located on the third axis, which is parallel to the first axis and the second axis. Each door panel has an arc-shaped hole, and the main swing arm slides within the arc-shaped hole through a slide rod, allowing the door panel to slide relative to the main swing arm along an arc-shaped trajectory.

[0089] Reference Figures 4 to 7 As shown, the base 30 includes a first base 31 (commonly known as the upper base, or the middle door panel) and a second base 32 (commonly known as the lower base) stacked in the thickness direction Y of the rotating mechanism. The first base 31 has the aforementioned third support surface M3. The first base 31 and the second base 32 are fixedly connected by fasteners (such as screws). The first fastener passes through the first base 31 and the second base 32. Therefore, the third support surface M3 has a fastener mounting hole 311.

[0090] In one embodiment, the second base 32 includes a plurality of lower base segments (a first lower base segment 321 and a second lower base segment 322 as shown in the figure) spaced apart in the longitudinal direction X. Each lower base segment is fitted with a fastener to the first base 31, thereby fixing and detachably connecting the lower base segment to the first base 31.

[0091] It should be noted that the specific number of the multiple lower base segments spaced apart in the length direction included in the second base 32 is not limited; it can be two, three, or more.

[0092] Reference Figures 4 to 7As shown, the rotating mechanism also includes a shaft cover 70. The shaft cover 70 is located on the side of the second base 32 opposite to the first base 31 and is fixedly connected to the base 30. (Refer to...) Figure 9 As shown, when the electronic device is in the unfolded state, the main swing arm can overlap both sides of the shaft cover 70 along its width direction. (Refer to...) Figure 10 As shown, when the electronic device is in a folded state, the shaft cover 70 cooperates with the housing of the electronic device to cover the components in the base 30.

[0093] In one embodiment, at least one fastener passing through the base 30 also passes through the shaft cover 70, thereby reducing the number of fasteners required to securely and detachably connect the shaft cover 70 to the base 30, thus reducing [the number of fasteners needed]. Figure 5 The number of mounting holes 311 shown.

[0094] The following is an exemplary description of the structure by which the main swing arm and the base achieve relative rotation.

[0095] In one implementation, refer to Figures 5 to 8 As shown, a pair of main swing arms may include a first main swing arm 51 and a second main swing arm 52. A first base 31 and a second base 32 (specifically, a first lower base segment 321) together form a first arc-shaped groove 301. The first arc-shaped groove 301 passes through the interior of the first base 31 and through the third support surface M3 of the first base 31, forming a first groove opening on the third support surface M3. One end of the first main swing arm 51 is provided with a first arc-shaped rib 511, which can be accommodated within the first arc-shaped groove 301 and can slide within it. Moreover, during the process of the rotating mechanism unfolding to folding, the end face of the first arc-shaped rib 511 near the opening of the first groove never protrudes (in this application, the direction of protrusion is from the second base to the first base) from the third support surface M3. Similarly, the first base 31 and the second base 32 (specifically, the first lower base segment 321) together form the second arc-shaped groove 302. The second arc-shaped groove 302 passes through the interior of the first base 31 and penetrates the third support surface M3 of the first base 31, forming the opening of the second groove on the third support surface M3. One end of the second main swing arm 51 is provided with a second arc-shaped rib 521, which can be accommodated in the second arc-shaped groove 302 and can slide within it. Moreover, during the process of the rotating mechanism unfolding and folding, the end face of the second arc-shaped rib 521 near the opening of the second groove will never protrude from the third support surface M3. (Refer to...) Figure 7As shown, when the rotating mechanism is in the extended state, the first main swing arm 51 and the second main swing arm 52 overlap the two sides of the shaft cover 70 in its width direction. The end face of the first arc-shaped rib 511 near the opening of the first slide groove and the end face of the second arc-shaped rib 521 near the opening of the second slide groove are both coplanar with the third support surface M3. (Refer to...) Figure 8 As shown, when the rotating mechanism is in the folded state, a portion of the first arc-shaped rib 511 exits from the first arc-shaped slide groove 301, while a portion of the second arc-shaped rib 521 exits from the second arc-shaped slide groove 301.

[0096] In addition, the other end of the first main swing arm 51 can be rotatably connected to the first fixed bracket 61 via the first pin, and the other end of the second main swing arm 52 can be rotatably connected to the second fixed bracket 62 via the second pin.

[0097] In another implementation, refer to Figure 5 , Figure 6 , Figure 11 ,and Figure 12 As shown, a pair of main swing arms may also include a third main swing arm 55 and a fourth main swing arm 56. A first hinge groove 303 is provided on the side of the base 30 facing the third main swing arm 55, and the first hinge groove 303 forms a notch on the first base 31. A third arc-shaped groove is provided on each of the two opposite inner walls of the first hinge groove 303 along the length direction X, and the center lines of the two third arc-shaped grooves are collinear and parallel to the length direction X. The third arc-shaped groove penetrates the third support surface M3 of the first base 31, forming a third groove opening on the third support surface M3. A first hinge block 551 is provided at one end of the third main swing arm 55. A third arc-shaped rib is provided on each of the two opposite outer sides of the first hinge block 551 along the length direction X, and the center lines of the two third arc-shaped ribs are collinear and parallel to the length direction X. The third arc-shaped rib can be fixed to the first hinge block 551 by adhesive or integrally formed with the first hinge block 551. The first hinge block 551 is fitted and accommodated within the first hinge groove 303, and the two third arc-shaped ribs are respectively fitted and accommodated within the two third arc-shaped sliding grooves (the cross-sectional structure can be referred to). Figure 7 This achieves a rotating connection between the third main swing arm 55 and the base 30.

[0098] Similarly, a second hinge groove 304 is provided on the side of the base 30 facing the fourth main swing arm 56, and the second hinge groove 304 forms a notch on the first base 31. A fourth arc-shaped groove is provided on each of the two opposite inner walls of the second hinge groove 304 along the length direction X, and the center lines of the two fourth arc-shaped grooves are collinear and parallel to the length direction X. The fourth arc-shaped groove penetrates the third support surface M3 of the first base 31, forming an opening on the third support surface M3. A second hinge block 561 is provided at one end of the fourth main swing arm 56. A fourth arc-shaped rib is provided on each of the two opposite outer sides of the second hinge block 561 along the length direction X, and the center lines of the two fourth arc-shaped ribs are collinear and parallel to the length direction X. The fourth arc-shaped rib can be fixed to the second hinge block 561 by adhesive or integrally formed with the second hinge block 561. The second hinge block 561 is fitted and accommodated within the second hinge groove 304, and the two fourth arc-shaped ribs are respectively fitted and accommodated within the two fourth arc-shaped sliding grooves (the cross-sectional structure can be referred to). Figure 7 This achieves the rotational connection between the fourth main swing arm 56 and the base 30.

[0099] Reference Figure 11 As shown, when the rotating mechanism is in the deployed state, the third main swing arm 55 and the fourth main swing arm 56 overlap the shaft cover 70 on both sides in its width direction. The end faces of the first hinge block 551 and the second hinge block 561 near the notch are both coplanar with the third support surface M3. The center line of the third arc-shaped rib is located on the aforementioned end face of the first hinge block 551, and the center line of the fourth arc-shaped rib is located on the aforementioned end face of the second hinge block 561. (Refer to...) Figure 12 As shown, when the rotating mechanism is in the folded state, the first hinge block 551 and the second hinge block 561 rotate around their respective center lines to a set position. It can be seen that during the rotation process from the unfolded state to the folded state, in the gap area between the center lines corresponding to the first hinge block 551 and the second hinge block 561, and at the openings of the third and fourth slide grooves, the first hinge block 551, the second hinge block 561, the third arc-shaped rib, and the fourth arc-shaped rib will never protrude beyond the plane of the third support surface M3. However, during the folding process, in the gap area outside the center lines corresponding to the first hinge block 551 and the second hinge block 561, both the first hinge block 551 and the second hinge block 561 protrude beyond the plane of the third support surface M3.

[0100] In addition, the other end of the third main swing arm 55 can be rotatably connected to the first fixed bracket 61 via the third pin, and the other end of the fourth main swing arm 56 can be rotatably connected to the second fixed bracket 62 via the fourth pin.

[0101] In addition, the rotating mechanism may also include damping swing arms (commonly known as auxiliary swing arms) located on both sides of the base. One end of one damping swing arm is rotatably connected to the second base, and the other end is fixedly connected to the first fixed bracket; one end of the other damping swing arm is rotatably connected to the second base, and the other end is slidably connected to the second fixed bracket. By setting the damping swing arms, the necessary damping can be provided to the housings of the electronic devices on both sides. In one example, each damping swing arm is rotatably connected to the corresponding lower base segment along its length via a connecting shaft. The damping swing arms overlap the two sides of the shaft cover along its width.

[0102] In one implementation, refer to Figure 5 , Figure 6 , Figure 13 and Figure 14 As shown, the rotating mechanism may further include a first damping swing arm 53 and a second damping swing arm 54 disposed on both sides of the base 30. One end of the first damping swing arm 53 and one end of the second damping swing arm 54 are respectively rotatably connected to the end of the first lower base section 321 along the length direction X. The other end of the first damping swing arm 53 is slidably connected to the first fixed bracket 61, and the other end of the second damping swing arm 54 is slidably connected to the second fixed bracket 62.

[0103] When a user operates the electronic device to rotate the rotating mechanism, each damping arm transmits damping force, providing the user with force feedback and enhancing the user experience. The structural form for achieving rotation between the damping arm and the lower base section is not limited. In one example, the end of the first lower base section 321 along the length X is rotatably connected to one end of the damping arm via a pin. The pin is fixedly connected to the damping arm and rotatably connected to the end of the first lower base section 321. In other embodiments, the pin may be fixed to the first lower base section 321 but rotatably connected to the damping arm.

[0104] Specifically, a third hinge groove (not shown in the figure) is provided on the side of the base 30 facing the first damping swing arm 53. The third hinge groove extends to the first base 31 and the second base 32 (specifically the first lower base segment 321), and a notch is formed on the first base 31 by the third hinge groove. In the third hinge groove, a fifth pin is provided on each of the two opposing inner walls of the first lower base segment 321 along the length direction X. A third hinge block 531 is provided at one end of the first damping swing arm 53, and the third hinge block 531 has a pin hole extending along the length direction X. The third hinge block 531 is fitted and accommodated in the third hinge groove, and the two fifth pins are fitted and accommodated in the pin holes respectively. Thus, the rotational connection between the first damping swing arm 53 and the first lower base segment 321 is realized.

[0105] Similarly, a fourth hinge groove (not shown in the figure) is provided on the side of the base 30 facing the second damping swing arm 54. The fourth hinge groove extends to the first base 31 and the second base 32 (specifically the first lower base segment 321), and a notch is formed on the first base 31 by the fourth hinge groove. In the fourth hinge groove, a sixth pin is provided on each of the two opposite inner walls of the first lower base segment 321 along the length direction X. A fourth hinge block 541 is provided at one end of the second damping swing arm 54, and the fourth hinge block 541 has a pin hole extending along the length direction X. The fourth hinge block 541 is fitted and accommodated in the fourth hinge groove, and the two sixth pins are fitted and accommodated in the pin holes respectively. Thus, the rotational connection between the second damping swing arm 54 and the first lower base segment 321 is realized.

[0106] Reference Figure 13 As shown, when the rotating mechanism is in the deployed state, the first damping swing arm 53 and the second damping swing arm 54 overlap the shaft cover 70 on both sides in its width direction. The surfaces of the third hinge block 531 and the fourth hinge block 541 near the notch are flat surfaces. These flat surfaces are parallel to or coplanar with the third support surface M3 and do not protrude from the plane where the third support surface M3 is located. (Refer to...) Figure 14 As shown, when the rotating mechanism is in the folded state, the third hinge block 531 and the fourth hinge block 541 rotate around their respective axes until their respective flat surfaces are in contact with the first base 31. It can be seen that during the rotation process from the unfolded state to the folded state, the first damping swing arm 53 and the second damping swing arm 54 will protrude from the plane containing the third support surface M3 throughout the entire area of ​​the notch.

[0107] Based on the above embodiments, in one implementation, refer to Figure 5 and Figure 6 As shown, the rotating mechanism may simultaneously include a first main swing arm 51, a second main swing arm 52, a first damping swing arm 53, a second damping swing arm 54, a third main swing arm 55, and a fourth main swing arm 56. Along the length direction X of the rotating mechanism, the first main swing arm 51 (or the second main swing arm 52), the first damping swing arm 53 (or the second damping swing arm 54), and the third main swing arm 55 (or the fourth main swing arm 56) are spaced apart. The first main swing arm 51, the second main swing arm 52, the first damping swing arm 53, and the second damping swing arm 54 may correspond to the same lower base segment, while the first main swing arm 51 (or the second main swing arm 52) and the third main swing arm 55 (or the fourth main swing arm 56) may correspond to different lower base segments. For example, the first main swing arm 51, the second main swing arm 52, the first damping swing arm 53 and the second damping swing arm 54 are correspondingly arranged with the first lower base section 321, and the third main swing arm 55 and the fourth main swing arm 56 are correspondingly arranged with the second lower base section 322.

[0108] Furthermore, when the electronic device is in a folded state, if it falls, the rotating mechanism of the device will land at an angle inclined to the ground (the angle between the length direction of the rotating mechanism and the ground is an acute angle), and the end of the rotating mechanism will collide with the ground. Under the instantaneous impact force, the third part of the folded screen at the end of the rotating mechanism will collide with the first base. In severe cases, this can damage the screen in that part, causing display failure in the corresponding area. To address this issue, in some embodiments, refer to... Figure 15 As shown, and in combination Figure 2 and Figure 10 It is understood that at least one flared groove 313 is provided on the third support surface M3 of the first base 31. The flared groove 313 is located at the end of the first base 31 in the length direction X, and the flared opening of the flared groove 313 is located on the end face of the first base 31 in the length direction X. Thus, when the end of the rotating mechanism with the flared groove 313 collides, the third part 23 of the folding screen at the corresponding position will fall into the flared groove 313 to buffer the third part 23, preventing it from colliding with the first base 31 and thus preventing damage to the third part 23. In one example, a flared groove 313 is provided at each of the two opposite ends of the first base 31 in the length direction X. Thus, regardless of which end of the rotating mechanism collides, the third part 23 of the folding screen at the corresponding position will not be damaged.

[0109] As mentioned earlier, the supporting surface of the first base of the rotating mechanism will have a downward indentation, i.e., as... Figure 5 The assembly hole 310 is shown. For example, when the first base and the second base are fixed by fasteners, a support surface for supporting the folding screen portion of the first base will be formed. Figure 5 The mounting hole 311 is shown. Furthermore, to allow each main swing arm to rotate freely, the size of the space within the base 30 for accommodating the connecting mechanism (such as an arc-shaped rib or hinge block) of the main swing arm (such as an arc-shaped groove or hinge slot) should be slightly larger than the size of the connecting mechanism. Thus, when the connecting mechanism is assembled into the aforementioned space, a certain gap will exist between the connecting mechanism and the base. Consequently, a gap will be formed at the groove opening and / or notch, as shown... Figure 5 The mounting gap 312 is shown. Both the mounting hole 311 and the mounting gap 312 are assembly holes 310. These assembly holes 310 are unavoidable for assembling the rotating mechanism, but their presence can cause display problems for the foldable screen. For example, when the electronic device is in the unfolded state, if a user performs touch operations such as knuckle tapping or stylus clicks on the foldable screen and touches the corresponding position of the assembly hole 310, the foldable screen at that position is prone to display failure issues such as bright spots.

[0110] The root cause of the above problems lies in two aspects. First, foldable screens consist of multiple layers of film, some of which are bonded together with optical adhesive. When the foldable screen at the corresponding assembly gap is impacted, it will dent downwards, and the corresponding film layer will be subjected to tensile force. This affects the interlayer bonding force of the aforementioned film layers, causing relative displacement between them. This relative displacement may misalign the originally uniformly distributed optical structure (such as diffusion films and brightness enhancement films), resulting in uneven scattering or enhancement of light during propagation, thus causing bright spots on the screen. Relative displacement may also cause misalignment between the light-emitting layer and the electrode layer or encapsulation layer, which will change the excitation efficiency or luminous intensity distribution of the light-emitting material in the light-emitting layer, leading to uneven light output and resulting in bright spots on the screen. Second, foldable screens use flexible displays, and the light-emitting layer of flexible displays typically uses organic light-emitting materials, which are highly sensitive to pressure and deformation. When the folding screen at the corresponding position of the assembly hole is impacted, the folding screen at that position will dent downwards, and the organic light-emitting material will be squeezed by external force, resulting in uneven light emission or local damage, which will cause the screen to have cracked bright spots.

[0111] To address the issue of bright spots appearing on the foldable screen of foldable electronic devices at the rotation mechanism location, this application provides a shielding solution applicable to the aforementioned rotation mechanism. Additionally, this application provides a support device and an electronic device. The support device includes the rotation mechanism provided in this application, and the electronic device includes the support device and a foldable screen laid on the support surface of the support device. The shielding solution will be described below with reference to the accompanying drawings.

[0112] For example, Figure 16 A structural diagram of another rotating mechanism provided in an embodiment of this application is shown below. Figure 16 As shown, the rotating mechanism provided in this application embodiment further includes: a shielding plate 80; the shielding plate 80 is disposed on the first base 31 of the rotating mechanism, and in the thickness direction Y of the rotating mechanism, the shielding plate 80 is located within the coverage area of ​​the first base 31, and covers at least part of the mounting holes 311 and / or mounting gaps 312 on the first base 31; the surface of the shielding plate 80 facing away from the second base 32 is coplanar with the fourth support surface M4 of the first door panel 41 and the fifth support surface M5 of the second door panel 42.

[0113] In this embodiment, the coverage area of ​​the first base 31 should be understood to include both the area covered by the body of the first base 31 and the area covered by the notch and the groove opening on the first base 31. In the thickness direction Y of the rotating mechanism, the shielding plate 80 covers at least a portion of the mounting holes 311 and / or mounting gaps 312 on the first base 31, thereby blocking the openings of the folding screen that face the aforementioned mounting holes 311 and / or mounting gaps 312. Thus, when the electronic device using this rotating mechanism is in the unfolded state, and the folding screen at the location of the mounting holes 311 and / or mounting gaps 312 is impacted, the shielding plate 80 can prevent the folding screen at that location from collapsing downwards, thereby preventing relative displacement between the film layers at the corresponding location in the folding screen, and preventing the organic light-emitting material at the corresponding location from being squeezed by external force. This solves both the problem of uneven light output caused by relative displacement between film layers and the problem of uneven light emission caused by external force squeezing of the organic light-emitting material. This avoids the appearance of bright spots on the folding screen at at least some of the mounting holes 311 and / or mounting gaps 312. Furthermore, the surface of the shielding plate 80 facing away from the second base 32 is coplanar with the fourth support surface M4 of the first door panel 41 and the fifth support surface M5 of the second door panel 42. Thus, the surface of the shielding plate 80 facing away from the second base 32, together with the fourth support surface M4 of the first door panel 41 and the fifth support surface M5 of the second door panel 42, forms a new support surface to support the third part of the folding screen when the electronic device is unfolded, ensuring the flatness of the unfolded screen. In addition, the shielding plate 80 is only provided on the base 30. During the folding or unfolding process of the rotating mechanism, the shielding plate 80 will not bend with the rotation of the first door panel 41 and the second door panel 42, but will always remain flat on the base 30. Therefore, the shielding plate 80 will not make any abnormal noise during the folding or unfolding process of the rotating mechanism.

[0114] It should be noted that the coplanarity in this application is not absolutely located on the same plane. Approximate coplanarity caused by processing errors and assembly errors is also within the scope of the coplanarity in this application.

[0115] In this embodiment, the shielding sheet 80 can be a steel sheet, or a magnesium alloy sheet, titanium alloy sheet, or aluminum sheet, etc., which can shield the mounting hole 311 and / or mounting gap 312 and support the folding screen.

[0116] If the surface of the shielding plate 80 facing away from the second base 32 is made coplanar with the fourth support surface M4 of the first door panel 41 and the fifth support surface M5 of the second door panel 42, then in one embodiment, referring to Figure 16 and Figure 17As shown, a groove 314 can be formed by first slotting the third support surface M3 of the first base 31. Along the thickness direction Y of the rotating mechanism, the projected outline of the groove 314 on the first base 31 is the same as the projected outline of the shielding plate 80 on the first base 31, and the length, width, and depth of the groove 314 match the length, width, and thickness of the shielding plate 80, respectively. Thus, after the shielding plate 80 is fixed in the groove 314, the surface of the shielding plate 80 facing away from the second base 32 can be coplanar with the fourth support surface M4 of the first door panel 41 and the fifth support surface M5 of the second door panel 42, and there is no gap between the shielding plate 80 and the inner wall of the groove 314. In this way, when the shielding plate 80 is used to shield the mounting hole 311 and / or mounting gap 312 of the first base 31, new assembly gaps can be avoided.

[0117] It should be noted that the aforementioned "matching" does not mean that the corresponding parameters are identical. Rather, it refers to designing the groove parameters that allow the masking plate 80 to fill and completely fill the groove 314, based on the connection method between the masking plate 80 and the groove 314, combined with the length, width, and thickness of the masking plate 80. For example, when the masking plate 80 is bonded to the groove 314, the groove 314 should have a margin for the bottom adhesive layer; in this case, the depth of the groove 314 is greater than the thickness of the masking plate 80. As another example, when the masking plate 80 and the groove 314 are interference-fitted, the length of the groove 314 is slightly less than the length of the masking plate 80, and the width of the groove 314 is slightly less than the width of the masking plate 80.

[0118] In some embodiments, the mounting hole includes a first mounting hole, and the first base and the second base are fixedly connected by a first fastener, which passes through the first mounting hole. In this solution, the first mounting hole penetrates the first base and extends to a portion of the second base, allowing the first fastener to be fitted into the first mounting hole from the side of the first base away from the second base, so that the first fastener passes through the first base and the second base, achieving a fixed and detachable connection between the first base and the second base.

[0119] When the second base includes multiple lower base segments spaced apart along the length of the rotating mechanism, the first mounting holes are located in the region of the lower base segments in the thickness direction of the rotating mechanism, and each lower base segment is fixedly connected to the first base by at least one first fastener. This allows each lower base segment to be individually fixed to and detachably connected to the first base, enabling individual disassembly of the corresponding swing arm.

[0120] Additionally, when the rotating mechanism also includes a shaft cover, in one example, the mounting hole may also include a second mounting hole. In the thickness direction of the rotating mechanism, the second mounting hole is located in the region between the lower base sections. The first base and the shaft cover are fixedly connected by a second fastener, which passes through the second mounting hole. In this solution, the second mounting hole penetrates the first base and extends to a portion of the shaft cover. The second fastener can be fitted into the second mounting hole from the side of the first base away from the second base, allowing the second fastener to pass through the first base and the shaft cover, thereby achieving a fixed and detachable connection between the entire base and the shaft cover. In another example, the first mounting hole is only provided in the region of the lower base section. Part or all of the first mounting hole penetrates the first base and the lower base section and extends to a portion of the shaft cover. The first fastener can be fitted into the first mounting hole from the side of the first base away from the second base, allowing the first fastener to pass through the first base, the lower base section, and the shaft cover. This achieves a fixed and detachable connection between the first base and the lower base section, as well as a fixed and detachable connection between the shaft cover and the entire base.

[0121] Since the shielding plate does not affect the normal swing of the main swing arm and the damping swing arm when it covers the above-mentioned mounting holes, that is, it does not affect the normal operation of the rotating mechanism, the shielding plate can cover all the above-mentioned mounting holes, thereby avoiding the problem of cracked bright spots on the screen caused by the mounting holes.

[0122] Meanwhile, considering that the aforementioned mounting holes and fasteners can achieve detachable connections between the first base and the second base, and between the base and the shaft cover, that is, after the first base and the second base, and the base and the shaft cover are fixed, the first base and the second base, and the base and the shaft cover can be disassembled by removing the fasteners. However, the setting of the shielding plate will prevent the disassembly of the fasteners. Therefore, to ensure the detachability of the first base and the second base, and between the base and the shaft cover, in some embodiments, the shielding plate and the groove are detachably connected. This application does not limit the connection method for the detachable connection; for example, it can be an interference fit (e.g., the size of the shielding plate is slightly larger than the size of the groove, as described above), or a snap-fit ​​connection (e.g., a clip is provided on the inner wall of the groove), etc.

[0123] In some embodiments, refer to Figure 16 , Figure 17 , Figure 18 and Figure 19As shown, when a pair of main swing arms includes a first main swing arm 51 and a second main swing arm 52, as mentioned earlier, during the swinging process, the end faces of the arc-shaped ribs of the first main swing arm 51 and the second main swing arm 52 near the corresponding slide opening will never protrude from the third support surface M3. Therefore, the end faces of the arc-shaped ribs near the corresponding slide opening can be lowered, that is, a portion of the end is removed, so that the original end face is lowered in the direction away from the slide opening. At this time, along the thickness direction Y of the rotating mechanism, the groove 314 can cover the area corresponding to the original slide opening, which is equivalent to a new slide opening being formed on the bottom surface of the groove 314. At the same time, the end face of the arc-shaped rib does not protrude from the bottom surface of the groove 314. In this way, the shielding plate 80 can cover the new slide opening, thereby completely covering the gap (first installation gap) between the arc-shaped rib and the arc-shaped slide at the new slide opening. In this way, without affecting the movement of the main swing arm, the installation gap between the main swing arm and the first base can be completely covered, preventing the folding screen from having any broken spots at the corresponding positions.

[0124] In some embodiments, refer to Figure 16 , Figure 17 , Figure 20 and Figure 21As shown, when a pair of main swing arms includes a third swing arm 55 and a fourth main swing arm 56, as can be seen from the previous text, during the swinging process, in the gap area between the center lines corresponding to the first hinge block 551 (or the third arc-shaped rib) and the second hinge block 561 (or the fourth arc-shaped rib), and at the openings of the third and fourth slide grooves, the first hinge block 551 and the second hinge block 561, the third arc-shaped rib and the fourth arc-shaped rib will never protrude from the plane where the third support surface M3 is located. However, in the gap area outside the center lines corresponding to the first hinge block 551 and the second hinge block 561, both the first hinge block 551 and the second hinge block 561 protrude from the plane where the third support surface M3 is located. Therefore, at least the end face of the hinge block near the corresponding notch in the region S between the center lines of the third and fourth arcuate ribs, and the end face of the arcuate rib near the corresponding groove opening, can be subjected to a surface reduction process (the processing procedure is the same as above). At this time, along the thickness direction Y of the rotating mechanism, the groove 314 can cover the region corresponding to the notch between the center lines of the third and fourth arcuate ribs and the region corresponding to the original groove opening. Meanwhile, at least the end face of the hinge block between the center lines of the third and fourth arcuate ribs and the end face of the arcuate rib do not protrude from the bottom surface of the groove 314. In this way, the shielding plate 80 can cover the new groove opening and the gap between the center lines of the third and fourth arc-shaped ribs, thereby covering the second installation gap as much as possible (including the gap between the arc-shaped ribs and the arc-shaped groove at the new groove opening, and the gap between the hinge block and the hinge groove at the gap). Thus, without affecting the movement of the main swing arm, the installation gap between the main swing arm and the first base can be covered to the greatest extent, preventing bright spots from appearing on the folding screen at the corresponding position.

[0125] Additionally, in some embodiments, reference is made to Figure 16 , Figure 17 , Figure 22 and Figure 23As shown, the rotating mechanism also includes at least one pair of damping swing arms, wherein the pair of damping swing arms includes a first damping swing arm 53 and a second damping swing arm 54. As mentioned above, during the swinging process, the first damping swing arm 53 and the second damping swing arm 54 will protrude from the plane of the third support surface M3 in the entire area of ​​the notch. Therefore, if the groove 314 covers the notch along the thickness direction Y of the rotating mechanism, the blocking plate 80 will block the movement of the damping swing arm and affect the folding of the rotating mechanism. Therefore, the groove 314 does not overlap with the notch. At this time, the blocking plate will not cover the gap between the damping swing arm and the first base 31, i.e., the third mounting gap. Specifically, in one example, the groove 314 is located in the area between the two notches, that is, the groove 314 is located on the body of the first base 31 between the two notches. In another example, the area between the two notches is not provided with the groove 314. In this way, unnecessary grooving can be avoided and materials can be saved.

[0126] Furthermore, in some embodiments, reference is made to Figure 16 and Figure 17 As shown, when at least one flared groove 313 is provided on the third support surface M3 of the first base 31, the groove 314 can cover the flared groove 313 along the thickness direction Y of the rotating mechanism, that is, the shielding plate 80 covers the flared groove 313. In this solution, since the thickness of the shielding plate 80 is on the micrometer level, it has a certain degree of flexibility. Therefore, when the end of the rotating mechanism collides in the folded state, the third part of the folded screen at the corresponding position will still fall into the flared groove 313 as the shielding plate 80 bends, buffering the third part and preventing damage to it. At the same time, when the rotating mechanism is in the unfolded state, if the folded screen receives a small impact such as a knuckle tap or a stylus click, the shielding plate 80 can also shield the flared groove 313 and support the folded screen, preventing the folded screen at the position of the flared groove 313 from having bright spots. Therefore, this solution can ensure the function of the flared groove 313 while avoiding bright spots on the screen.

[0127] Based on the above embodiments, it should be noted that the number of shielding plates can be one, in which case the entire shielding plate simultaneously covers at least part of the mounting hole and / or mounting gap. The number of shielding plates can also be two or more, in which case the shielding plates can be spaced apart along the length of the rotating mechanism, or shielding plates can be provided only at the positions of the mounting hole or mounting gap. This application does not limit this, and the specific configuration can be determined according to actual needs.

[0128] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A rotating mechanism, characterized in that, include: The system comprises a base, at least one pair of swing arms, a first door panel, a second door panel, and a shield; wherein the first door panel and the second door panel each have a support surface, and the first door panel and the second door panel are respectively located on both sides of the base; in each pair of swing arms, two swing arms are respectively located on both sides of the base and are rotatably connected to the base, one swing arm is located on the side of the first door panel opposite to the support surface of the first door panel, and the other swing arm is located on the side of the second door panel opposite to the support surface of the second door panel; The shielding plate is disposed on the base, and the surface of the base facing the shielding plate has a mounting hole; in the thickness direction of the rotating mechanism, the shielding plate is located within the coverage area of ​​the base and covers at least a portion of the mounting hole on the base; When the rotating mechanism is in the extended state, the surface of the shield facing away from the base is coplanar with the support surfaces of the first door panel and the second door panel.

2. The rotating mechanism according to claim 1, characterized in that, The base is provided with a groove, and the shielding piece is embedded in the groove.

3. The rotating mechanism according to claim 2, characterized in that, The shielding plate is detachably connected to the groove.

4. The rotating mechanism according to claim 1, characterized in that, The base includes a first base and a second base stacked in the thickness direction of the rotating mechanism, the first base and the second base being fixedly connected, and the shielding plate being disposed on the first base.

5. The rotating mechanism according to claim 4, characterized in that, The assembly hole includes a mounting hole, the mounting hole includes a first mounting hole, the first base and the second base are fixedly connected by a first fastener, the first fastener is inserted into the first mounting hole.

6. The rotating mechanism according to claim 5, characterized in that, The second base includes a plurality of lower base segments spaced apart along the length of the rotating mechanism. In the thickness direction of the rotating mechanism, the first mounting hole is located in the region of the lower base segment. Each lower base segment is fixedly connected to the first base by at least one first fastener.

7. The rotating mechanism according to claim 6, characterized in that, The rotating mechanism further includes a shaft cover, which is located on the side of the second base opposite to the first base; The mounting hole further includes a second mounting hole, located in the region between the lower base segments along the thickness direction of the rotating mechanism. The first base and the shaft cover are fixedly connected by a second fastener, which passes through the second mounting hole; and / or, The shaft cover is fixedly connected to the first base and the lower base segment by at least a portion of the first fastener.

8. The rotating mechanism according to any one of claims 5 to 7, characterized in that, In the thickness direction of the rotating mechanism, the shielding plate covers all the mounting holes.

9. The rotating mechanism according to claim 2, characterized in that, The swing arm includes a main swing arm and / or a damping swing arm, and the assembly clearance includes the installation gap between the swing arm and the base.

10. The rotating mechanism according to claim 9, characterized in that, When the swing arm includes a main swing arm, the mounting gap includes a first mounting gap; A pair of main swing arms includes two first-type main swing arms. One end of the first-type main swing arm is provided with an arc-shaped rib. The base is provided with an arc-shaped sliding groove. The arc-shaped sliding groove passes through the interior of the base and penetrates the bottom surface of the groove, forming a groove opening on the bottom surface of the groove. The arc-shaped rib can slide in the arc-shaped sliding groove. When the rotating mechanism is in the unfolded state, the arc-shaped rib does not protrude from the bottom surface of the groove, and the gap between the arc-shaped rib and the arc-shaped slide groove at the opening of the slide groove is the first installation gap.

11. The rotating mechanism according to claim 9, characterized in that, When the swing arm includes a main swing arm, the mounting gap includes a second mounting gap; A pair of main swing arms includes two second-type main swing arms. One end of each second-type main swing arm is provided with a hinge block. Each hinge block has an arc-shaped rib on its two opposite outer sides along the length direction of the rotating mechanism. The center lines of the two arc-shaped ribs are collinear and parallel to the length direction of the rotating mechanism. The base has a hinge groove facing the second type of main swing arm, and the hinge groove forms a notch on the base; the hinge groove has an arc-shaped sliding groove on two opposite inner walls along the length direction of the rotating mechanism, and the center lines of the two arc-shaped sliding grooves are collinear and parallel to the length direction of the rotating mechanism; the arc-shaped sliding groove penetrates the bottom surface of the groove, forming a sliding groove opening on the bottom surface of the groove; the hinge groove can accommodate the hinge block, and the arc-shaped rib can slide in the arc-shaped sliding groove; When the rotating mechanism is in the unfolded state, at least a portion of the hinge block and the arc-shaped rib do not protrude from the bottom surface of the groove. The gap between the hinge block and the hinge groove at the notch, and the gap between the arc-shaped rib and the arc-shaped slide groove at the opening of the slide groove, are the second installation gaps. In the region of the base corresponding to the second type of main swing arm, along the thickness direction of the rotating mechanism, the groove is located in the region between the center lines of the arc-shaped ribs of the two second type of main swing arms.

12. The rotating mechanism according to claim 9, characterized in that, When the swing arm includes a damped swing arm, the mounting gap includes a third mounting gap; A hinge block is provided at one end of the damping swing arm connected to the base. The hinge block has a pin hole extending along the length direction of the rotating mechanism. A hinge groove is provided on the side of the base facing the damping swing arm, and the hinge groove forms a notch on the base. A pin is provided on each of the two opposing inner walls of the hinge groove along the length direction of the rotating mechanism. The hinge groove can accommodate the hinge block, and the pin can rotate in the pin hole. The gap between the hinge block and the hinge groove at the notch is the third installation gap. In the region of the base corresponding to the damping swing arm, along the thickness direction of the rotating mechanism, the groove is located in the area between the two notches; or, the area between the two notches is not provided with the groove.

13. The rotating mechanism according to claim 1, characterized in that, At least one flared groove is provided on the support surface of the base. The flared groove is located at at least one end of the base in the length direction of the rotating mechanism, and the flared opening of the flared groove is located on the end face of the base in the length direction of the rotating mechanism. In the thickness direction of the rotating mechanism, the shielding plate covers the flared groove.

14. A support device, characterized in that, It includes a first housing, a second housing, a first fixed bracket, a second fixed bracket, and a rotating mechanism as described in any one of claims 1 to 13, wherein the first fixed bracket is fixed to the first housing, the second fixed bracket is fixed to the second housing, the first door panel and one of the swing arms are both connected to the first fixed bracket, and the second door panel and the other swing arm are both connected to the second fixed bracket.

15. An electronic device, characterized in that, It includes a foldable screen and a support device as described in claim 14, wherein the foldable screen is laid on the support device.

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