Rotating mechanism and electronic equipment

Abstract

A rotating mechanism (100) and an electronic device (400) are provided. The rotating mechanism (100) comprises a support (20), first main swing arms (31a, 31b, 31c and 31d) and second main swing arms (32a, 32b, 32c and 32d). The support (20) is provided with first rotating grooves (21a, 21b, 21c and 21d) and second rotating grooves (22a, 22b, 22c and 22d) which are distributed on the two opposite sides of the support (20). The first rotating grooves (21a, 21b, 21c and 21d) comprise first sliding rails (211a) and two second sliding rails (212a), the first sliding rails (211a) are arranged side by side in the length direction of the support (20), the two second sliding rails (212a) are located on the two opposite sides of the first sliding rails (211a) respectively, and the first main swing arms (31a, 31b, 31c and 31d) are installed in the first rotating grooves (21a, 21b, 21c and 21d), can slide on the first sliding rails (211a) and the two second sliding rails (212a) and can rotate relative to the support (20); the second rotating grooves (22a, 22b, 22c, 22d) comprise third sliding rails (221a) arranged side by side in the length direction of the support and two fourth sliding rails (222a) located on the two opposite sides of the third sliding rails (221a) respectively, the second main swing arms (32a, 32b, 32c, 32d) are installed in the second rotating grooves (22a, 22b, 22c, 32d) and can slide on the third sliding rails (221a) and the two fourth sliding rails (222a), the second main swing arms (32a, 32b, 32c, 32d) can rotate relative to the support (20), and the first main swing arms (31a, 31b, 31c, 31d) can rotate relative to the support (20). And the rotation directions of the first main swing arms (32a, 32b, 32c and 32d) and the second main swing arms (32a, 32b, 32c and 32d) are opposite. The structural arrangement of the rotating mechanism (100) is beneficial for realizing the thinning of the whole machine on the basis of ensuring the rotating motion of the swing arm.

Description

Rotating mechanisms and electronic equipment

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on September 20, 2022, with application number 202211146001.8 and application name “Rotating Mechanism and Electronic Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of electronic products, and in particular to a rotating mechanism and an electronic device. Background Art

[0003] As flexible foldable screen technology matures, the application of foldable terminal products is becoming increasingly widespread. Foldable terminal products (such as foldable phones, foldable tablets, and foldable computers) must meet high-quality appearance and user experience to gain consumer acceptance. Currently, foldable terminal products often achieve rotational motion through a swing arm mounted on a shaft cover bracket. However, the existing swing arm slide structure easily affects the thickness of the entire device.

[0004] Summary of the Invention

[0005] The embodiments of the present application provide a rotation mechanism and an electronic device. The structural arrangement of the rotation mechanism is conducive to achieving the thinning of the entire device while ensuring the rotational movement of the swing arm.

[0006] In a first aspect, the present application provides a rotation mechanism, the rotation mechanism comprising a bracket, a first main swing arm and a second main swing arm;

[0007] The bracket is provided with a first rotation groove and a second rotation groove, wherein the first rotation groove and the second rotation groove are distributed on opposite sides of the bracket;

[0008] The first rotating groove includes a first slide rail and two second slide rails, the two second slide rails are respectively located on opposite sides of the first slide rail and are arranged side by side with the first slide rail along the length direction of the bracket. The first main swing arm is installed in the first rotating groove. The first main swing arm can slide on the first slide rail and the two second slide rails, and the first main swing arm can rotate relative to the bracket.

[0009] The second rotating groove includes a third slide rail and two fourth slide rails. The two fourth slide rails are respectively located on opposite sides of the third slide rail and are arranged side by side with the third slide rail along the length direction of the bracket. The second main swing arm is installed in the second rotating groove. The second main swing arm can slide on the third slide rail and the two fourth slide rails. The second main swing arm can rotate relative to the bracket. The rotation direction of the second main swing arm is opposite to that of the first main swing arm.

[0010] It is understood that the first and second slide rails allow the swing arm to slide thereon, and the sliding movement of the swing arm on the first and second slide rails can achieve rotational movement of the swing arm and the bracket. In this arrangement, by providing the first rotation slot (swing arm slot) on the bracket, the space on the bracket can be fully utilized and the structure of the first rotation slot can be rationally arranged. Compared with the prior art structure of providing the swing arm slot on the swing arm, this allows the swing arm to occupy less space when folded, which is conducive to achieving a lighter and thinner device.

[0011] In addition, by providing a first slide rail and two second slide rails in the first rotation groove, the sliding trajectory of the swing arm can be jointly defined by the first slide rail and the two second slide rails. On the one hand, having the sliding trajectory of the swing arm jointly defined by the first slide rail and the two second slide rails can reduce the precision requirements for the first rotation groove, thereby reducing the processing difficulty and cost of the bracket. On the other hand, having the sliding trajectory of the swing arm jointly defined by the first slide rail and the two second slide rails can enable the first slide rail and the two second slide rails to be arranged in a distributed manner. The multiple slide rails arranged in a distributed manner can increase the strength of the first rotation groove, making it less likely for the swing arm to deform and become stuck when sliding on the slide rails, thereby improving reliability.

[0012] The effect of the second rotating groove is similar.

[0013] In one possible embodiment, the first main swing arm includes a first sliding part and two second sliding parts, the two second sliding parts are connected to opposite sides of the first sliding part, the first sliding part is installed on the first slide rail, and each second sliding part is installed on one second slide rail.

[0014] Under this setting, the structure of the first rotating body can match the structure of the first rotating groove of the bracket, the structure of the first sliding part can match the structure of the first slide rail, and the structure of the second sliding part can match the structure of the second slide rail, which is conducive to the first main swing arm to be able to rotate smoothly relative to the bracket.

[0015] In a possible implementation manner, the first sliding portion and the two second sliding portions cooperate to form a first recessed area, and a portion of the first sliding rail is located in the first recessed area.

[0016] With this arrangement, the first sliding portion can be recessed relative to the two second sliding portions. When the first sliding portion slides on the first slide rail, the first recessed area formed by the first sliding portion being recessed relative to the two second sliding portions can provide a certain amount of space to accommodate the first slide rail, which is beneficial for improving the space utilization of the rotation mechanism in a limited space layout and improving reliability.

[0017] In a possible implementation manner, a first through hole is provided on the first main swing arm, the first through hole is connected to the first recessed area, and the first through hole is used for allowing the first slide rail to pass through.

[0018] Under this setting, the rotational movements of the first slide rail and the first main swing arm will not affect each other, effectively avoiding the problem of the rotation mechanism getting stuck due to the first slide rail hindering the rotation of the first main swing arm.

[0019] In one possible embodiment, the first slide rail includes two oppositely arranged first protrusions, and the surface of each first protrusion facing away from the bottom wall of the first rotating groove contacts the first sliding portion. Each first protrusion includes a first end and a second end, and the first end is arranged near the edge of the bracket relative to the second end. The cross-sectional height of each first protrusion along the direction perpendicular to the bottom wall of the first rotating groove gradually decreases from the first end to the second end.

[0020] Under this setting, the first end can be used as the high point position in the first protrusion, and the second end can be used as the low point position in the first protrusion, so that the track path of the first slide rail is from high to low, and the structural setting gradually approaches the center of the bracket from the edge of the bracket. This is conducive to making full use of the structural space of the bracket and realizing the track setting of the first slide rail with a height difference and a certain inclination angle, and has good reliability.

[0021] In one possible embodiment, the rotating mechanism also includes a base, the bracket is fixed to the base, the base is provided with a mounting post, the first slide rail also includes a first connecting portion, the first connecting portion is connected between the first ends of the two first protrusions, the first connecting portion and the two first protrusions cooperate to enclose an installation space, the bracket is provided with a mounting hole, the mounting hole is located between the two first protrusions and is arranged close to the first connecting portion, the mounting post passes through the mounting hole, and the mounting post is located in the installation space.

[0022] Under this arrangement, on the one hand, the corresponding arrangement of the mounting holes and the mounting posts can achieve rapid positioning during assembly of the bracket and the base, facilitating the convenient and quick assembly of the bracket onto the base. On the other hand, the corresponding arrangement of the mounting holes and the mounting posts can achieve a clamping connection between the bracket and the base, limiting relative movement between the bracket and the base and ensuring that the bracket and the base do not tilt, misalign, or wobble. Furthermore, the mounting space formed by the first connecting portion and the two protrusions can also accommodate the mounting posts, making full use of the space on the bracket without occupying additional space for the rotating mechanism, effectively improving the space utilization rate of the bracket.

[0023] In one possible embodiment, each of the first sliding rails includes a first protrusion and a first track structure, the first protrusion is connected to the side wall of the first rotation groove, the first track structure is connected to the bottom wall of the first rotation groove, the first protrusion and the first track structure are spaced apart, and the second sliding portion is located in the gap area between the first protrusion and the first track structure.

[0024] By providing the first protrusion on the side wall of the first rotation groove, the swing arm installed in the first rotation groove can be limited, which is helpful to prevent the swing arm installed in the first rotation groove from escaping from the first rotation groove.

[0025] In a possible implementation manner, the first track structure is provided with a first hollow portion, the first hollow portion is arranged opposite to the first protrusion, and the first hollow portion passes through the bottom wall of the first rotation groove.

[0026] It can be understood that by providing the first hollow portion, the bracket can be prepared by mold forming, which simplifies the processing technology of the bracket, helps to reduce production costs and improve production efficiency.

[0027] In a possible implementation manner, the first rotation groove and the second rotation groove are an integrated structure.

[0028] It is understood that both the first and second rotating grooves are integrally constructed. Compared to conventional assembled grooves constructed from multiple parts, the integral structure of the first and second rotating grooves offers advantages such as no need for disassembly, fewer parts, simpler processing and manufacturing, lower costs, and higher dimensional accuracy. This minimizes the adverse effects of problems such as large assembly tolerances, play in the gaps, difficulty in welding, and difficulty in repairing caused by assembling multiple parts, resulting in superior reliability.

[0029] In a possible implementation manner, the rotation mechanism further includes a base, the bracket is fixed to the base, and the orthographic projections of the first rotation groove and the second rotation groove on the base completely fall on the base.

[0030] It can be understood that because the orthographic projections of the first and second rotation slots fall entirely on the base, the bracket can be adapted to the structural arrangement of the first and second rotation slots while remaining within the spatial range defined by the base. This allows the bracket's dimensions to adapt to the base's dimensions without protruding relative to the base. In other words, the first and second rotation slots do not protrude relative to the base. This arrangement minimizes the impact of the bracket's protrusion relative to the base on the overall thickness of the device, contributing to a slimmer and lighter device.

[0031] In a second aspect, the present application further provides an electronic device, comprising a first shell, a second shell, and the rotation mechanism as described above, wherein the rotation mechanism is connected between the first shell and the second shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] FIG1 is a schematic structural diagram of an electronic device in a folded state provided by an embodiment of the present application;

[0033] FIG2 is a simplified structural diagram of the electronic device shown in FIG1 in an intermediate state;

[0034] FIG3 is a simplified structural diagram of the electronic device shown in FIG1 in an unfolded state;

[0035] FIG4 is a schematic structural diagram of an electronic device provided in an embodiment of the present application;

[0036] FIG5 is an exploded schematic diagram of the electronic device shown in FIG4 ;

[0037] FIG6 is a schematic structural diagram of the rotating mechanism of the electronic device shown in FIG5 ;

[0038] FIG7 is an exploded schematic diagram of the rotating mechanism shown in FIG6;

[0039] FIG8 is a schematic structural diagram of the base and bracket of the rotating mechanism shown in FIG6;

[0040] FIG9 is a schematic diagram of the assembly of the bracket and the base shown in FIG8 ;

[0041] FIG10 is a schematic structural diagram of the first sub-bracket of the bracket shown in FIG6;

[0042] FIG11 is a schematic top view of the first sub-bracket shown in FIG10 ;

[0043] FIG12 is a schematic structural diagram of a first rotating swing arm assembly of the rotating swing arm assembly shown in FIG6;

[0044] FIG13 is a schematic diagram of a partial structure of the rotating mechanism shown in FIG6 in an expanded state;

[0045] FIG14 is a schematic diagram of a partial structure of the rotating mechanism shown in FIG6 in a folded state;

[0046] FIG15 is a schematic structural diagram of the first pressure plate swing arm assembly of the pressure plate swing arm assembly shown in FIG6. DETAILED DESCRIPTION

[0047] For ease of understanding, the terms involved in the embodiments of the present application are first explained.

[0048] And / or: It is just a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0049] Multiple: refers to two or more than two.

[0050] Connection: should be understood in a broad sense. For example, A and B are connected, which can be either directly connected or indirectly connected through an intermediary.

[0051] The specific implementation of the present application will be clearly described below with reference to the accompanying drawings.

[0052] The embodiments of the present application provide a rotation mechanism and an electronic device using the rotation mechanism. The structural arrangement of the rotation mechanism is conducive to achieving the thinning of the entire device while ensuring the rotational movement of the swing arm.

[0053] The electronic device may be any foldable device that can be unfolded and closed by a user. The electronic device includes, but is not limited to, a cell phone, a notebook computer, a tablet personal computer, a laptop computer, a personal digital assistant, a wearable device, or a mobile device. In the embodiments of the present application, a mobile phone is used as an example for illustration.

[0054] Figure 1 is a simplified structural diagram of an electronic device 400 provided in an embodiment of the present application in a folded state, Figure 2 is a simplified structural diagram of the electronic device 400 shown in Figure 1 in an intermediate state, and Figure 3 is a simplified structural diagram of the electronic device 400 shown in Figure 1 in an unfolded state. Specifically, the unfolding angle α of the electronic device 400 shown in Figure 2 is 120 degrees, and the unfolding angle β of the electronic device 400 shown in Figure 3 is 180 degrees.

[0055] For ease of description, the length direction of the electronic device 400 is defined as the X direction, the width direction of the electronic device 400 is defined as the Y direction, and the thickness direction of the electronic device 400 is defined as the Z direction. The X direction, the Y direction, and the Z direction are perpendicular to each other.

[0056] It should be noted that the angles illustrated in the embodiments of the present application are all allowed to have slight deviations. For example, the deployment angle α of the electronic device 400 shown in Figure 2 is 120 degrees, which means that α can be 120 degrees, or approximately 120 degrees, such as 110 degrees, 115 degrees, 125 degrees, or 130 degrees. The deployment angle β of the electronic device 400 shown in Figure 3 is 180 degrees, which means that β can be 180 degrees, or approximately 180 degrees, such as 0 degrees, 5 degrees, 185 degrees, and 190 degrees. The angles illustrated in the following examples can be understood in the same way.

[0057] The electronic device 400 shown in the embodiment of the present application is an electronic device that can be folded once. In other embodiments, the electronic device 400 can also be an electronic device that can be folded multiple times (more than twice). In this case, the electronic device 400 can include multiple parts, where two adjacent parts can be folded relatively close together until the electronic device 400 is in the folded state, and the two adjacent parts can be unfolded relatively far apart until the electronic device 400 is in the unfolded state.

[0058] FIG4 is a structural diagram of an electronic device 400 provided in an embodiment of the present application, and FIG5 is an exploded diagram of the electronic device 400 shown in FIG4 .

[0059] Referring to Figures 4 and 5 , electronic device 400 includes a folding device 200 and a flexible display 300, with the flexible display 300 mounted on the folding device 200. The flexible display 300 includes a first portion 310, a second portion 320, and a foldable portion 330. The foldable portion 330 is located between the first portion 310 and the second portion 320 and can bend. Together, the first portion 310, the second portion 320, and the foldable portion 330 constitute the flexible display 300.

[0060] In an embodiment of the present application, the flexible display screen 300 may be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode (MID) display screen, a micro organic light-emitting diode (MID) display screen, a micro organic light-emitting diode (MID) display screen, or a quantum dot light-emitting diode (QLED) display screen.

[0061] The folding device 200 includes a first shell 210, a second shell 220 and a rotating mechanism 100. The first shell 210 is provided with a first accommodating groove 230, and the second shell 220 is provided with a second accommodating groove 240. The first accommodating groove 230 and the second accommodating groove 240 are connected to form an accommodating groove. The rotating mechanism 100 is installed in the accommodating groove and is fixedly connected to the first shell 210 and the second shell 220 to achieve a rotational connection between the first shell 210 and the second shell 220. The first shell 210 and the second shell 220 can rotate relative to each other through the rotating mechanism 100, so that the folding device 200 can switch between a folded state and an unfolded state. The first shell 210 and the second shell 220 are also provided with an accommodating space (not shown in the figure), which is used to accommodate electronic components and structural elements such as the processor, circuit board, camera module, etc. of the electronic device 400.

[0062] As shown in Figure 1, the relative rotation of the first housing 210 and the second housing 220 causes the folding device 200 to be in a folded state. This means that the first housing 210 and the second housing 220 rotate via the rotation mechanism 100 and approach each other, with the surfaces of the first housing 210 and the second housing 220 supporting the flexible display 300 facing each other. In practice, when the folding device 200 is in a fully folded state, the flexible display 300 mounted on the first housing 210 and the second housing 220 are folded, with the first portion 310 and the second portion 320 overlapping and partially contacting each other, although they may also be in full contact.

[0063] As shown in Figure 2, the relative rotation of the first shell 210 and the second shell 220 makes the folding device 200 in an intermediate state, which means that the first shell 210 and the second shell 220 are rotated by the rotating mechanism 100, and move away from each other so that the angle between the first shell 210 and the second shell 220 becomes larger and larger, or it means that the first shell 210 and the second shell 220 are rotated by the rotating mechanism 100, and move closer to each other so that the angle between the first shell 210 and the second shell 220 becomes smaller and smaller.

[0064] As shown in Figure 3, the relative rotation of the first shell 210 and the second shell 220 puts the folding device 200 in an unfolded state, which means that the first shell 210 and the second shell 220 are rotated through the rotating mechanism 100 and move away from each other, and the angle between the first shell 210 and the second shell 220 continues to increase and can be close to 180 degrees or equal to 180 degrees.

[0065] The flexible display 300 is connected to the folding device 200. Specifically, the first housing 210 supports the first portion 310 of the flexible display 300, the second housing 220 supports the second portion 320 of the flexible display 300, and the foldable portion 330 of the flexible display 300 is disposed opposite the rotation mechanism 100. It will be understood that the first and second housings 210, 220 rotate relative to each other via the rotation mechanism 100. The relative proximity of the first and second housings 210, 220 drives the flexible display 300 to fold, thereby folding the electronic device 400. When the electronic device 400 is in the folded state, the foldable portion 330 of the flexible display 300 bends, and the first and second portions 310, 320 are disposed opposite each other. At this point, the flexible display 300 is positioned between the first and second housings 210, 220, significantly reducing the likelihood of damage to the flexible display 300 and effectively protecting it.

[0066] In an embodiment of the present application, the first shell 210 and the second shell 220 rotate relative to each other via the rotating mechanism 100, and the first shell 210 and the second shell 220 move away from each other to drive the flexible display screen 300 to unfold, so that the electronic device 400 unfolds to an intermediate state. When the electronic device 400 is in the intermediate state, the first shell 210 and the second shell 220 unfold to an angle α, the first part 310 and the second part 320 unfold relative to each other, and drive the foldable part 330 to unfold. At this time, the angle between the first part 310 and the second part 320 is α. In this embodiment, α is 120 degrees. In other embodiments, α may also be approximately 120 degrees, or may be 110 degrees, 115 degrees, 125 degrees, or 130 degrees, etc.

[0067] The first shell 210 and the second shell 220 rotate relative to each other via the rotating mechanism 100. As the first shell 210 and the second shell 220 move away from each other, the flexible display 300 is further unfolded until the electronic device 400 unfolds. When the folding device 200 is in the unfolded state, the angle between the first shell 210 and the second shell 220 is β. The foldable portion 330 unfolds, and the first portion 310 and the second portion 320 unfold relative to each other. At this point, the angles between the first portion 310, the second portion 320, and the foldable portion 330 are all β. The flexible display 300 has a large display area, enabling a large-screen display for the electronic device 400 and improving the user experience. In this embodiment, β is 180 degrees. In other embodiments, β can also be approximately 180 degrees, and can be 0 degrees, 5 degrees, 185 degrees, 190 degrees, etc.

[0068] Please refer to FIG. 6 and FIG. 7 . FIG. 6 is a structural diagram of the rotating mechanism 100 of the electronic device shown in FIG. 5 , and FIG. 7 is an exploded schematic diagram of the rotating mechanism 100 shown in FIG. 6 .

[0069] The rotation mechanism 100 may include a base 10, a bracket 20, a rotational swing arm assembly 30, and a pressure plate swing arm assembly 40. The bracket 20 is mounted on the base 10 and fixedly connected to the base 10. The rotational swing arm assembly 30 is mounted on the bracket 20 and is rotatable relative to the bracket 20. The rotational connection between the rotational swing arm assembly 30 and the bracket 20 enables a rotational connection between the base 10 and the rotational swing arm assembly 30. The pressure plate swing arm assembly 40 is mounted on the bracket 20 and is rotatable relative to the bracket 20. The rotational connection between the pressure plate swing arm assembly 40 and the bracket 20 enables a rotational connection between the base 10 and the pressure plate swing arm assembly 40. For example, the pressure plate swing arm assembly 40 may be slidably and rotationally connected to the rotational swing arm assembly 30. When the rotational swing arm assembly 30 rotates relative to the base 10, it drives the pressure plate swing arm assembly 40 to rotate relative to the base 10, thereby achieving rotation of the rotation mechanism 100 and switching the rotation mechanism 100 between a folded state and an unfolded state.

[0070] For ease of description, the embodiment of the present application sets a symmetry axis O (as shown in FIG6 ), wherein the symmetry axis O is perpendicular to the X direction and passes through the center of the rotating mechanism 100 .

[0071] It should be noted that the purpose of Figures 6 and 7 is only to schematically describe the connection relationship between the base 10, the bracket 20 and the rotating swing arm assembly 30, and does not specifically limit the connection position, specific structure and quantity of each device. The structure illustrated in the embodiment of the present application does not constitute a specific limitation on the rotating mechanism 100. In other embodiments of the present application, the rotating mechanism 100 may include more or fewer components than shown in the figure, or combine certain components, or split certain components, or arrange the components differently. The illustrated components can be implemented in hardware, software, or a combination of software and hardware.

[0072] Please refer to Figures 8 and 9 in conjunction. Figure 8 is a structural schematic diagram of the base 10 and the bracket 20 of the rotating mechanism 100 shown in Figure 6, and Figure 9 is an assembly schematic diagram of the bracket 20 and the base 10 shown in Figure 8. The base 10 may include a bottom plate 11, a first end plate 12, and a second end plate 13. The first end plate 12 and the second end plate 13 are respectively connected to the two sides of the bottom plate 11, and the first end plate 12 and the second end plate 13 are arranged opposite to each other in the Y direction. The bottom plate 11 is provided with a plurality of mounting posts 14, and the plurality of mounting posts 14 are arranged at intervals on the bottom plate 11. In the X direction, the plurality of mounting posts 14 located on one side of the bottom plate 11 and the plurality of mounting posts 14 located on the other side of the bottom plate 11 are symmetrically arranged about the symmetry axis O.

[0073] The bracket 20 is fixedly connected to the base 10, and the bracket 20 is arranged opposite to the bottom plate 11 of the base 10. For example, the bracket 20 and the base 10 can be fixedly connected by bolts, glue, welding, etc. In the embodiment of the present application, the bracket 20 is composed of four sub-brackets. In this embodiment, the four sub-brackets are split structures. The four sub-brackets are respectively the first sub-bracket 201, the second sub-bracket 202, the third sub-bracket 203 and the fourth sub-bracket 204. The first sub-bracket 201, the second sub-bracket 202, the third sub-bracket 203 and the fourth sub-bracket 204 are arranged in sequence in the Y direction. Among them, the first sub-bracket 201 is located on the negative side of the Y axis of the base 10, and the fourth sub-bracket 204 is located on the positive side of the Y axis. Of course, in some other embodiments, the four sub-brackets can also be an integrally formed structure.

[0074] Please refer to FIG. 10 , which is a schematic structural diagram of the first sub-bracket 201 of the bracket 20 shown in FIG. 6 .

[0075] The first sub-bracket 201 is fixedly connected to the base 10 and is provided with a first rotation groove 21a and a second rotation groove 22a. The first rotation groove 21a and the second rotation groove 22a are spaced apart in both the X and Y directions. The orthographic projections of the first rotation groove 21a and the second rotation groove 22a on the base 10 can completely fall on the base 10. It can be understood that because the orthographic projections of the first rotation groove 21a and the second rotation groove 22a completely fall on the base 10, the first sub-bracket 201 can adapt to the structural arrangement of the first rotation groove 21a and the second rotation groove 22a and also fall within the space defined by the base 10. This allows the size of the first sub-bracket 201 to adapt to the size of the base 10 without protruding relative to the base 10. In other words, the first rotation groove 21a and the second rotation groove 22a do not protrude relative to the base 10. This arrangement can minimize the impact of the first sub-bracket 201 protruding relative to the base 10 on the thickness of the entire device, thereby facilitating a thinner and lighter device.

[0076] In the embodiment of the present application, both the first rotation groove 21a and the second rotation groove 22a are integrally formed. Compared to conventional assembly structures in which rotation grooves are assembled from multiple parts, the integral structure of the first rotation groove 21a and the second rotation groove 22a has the advantages of not requiring disassembly, having fewer parts, being relatively simple to process and manufacture, being relatively low in cost, and having high dimensional accuracy. This minimizes the adverse effects caused by problems such as large assembly tolerances, wiggling in the gaps, high welding difficulty, and difficulty in repair caused by assembling multiple parts, resulting in excellent reliability.

[0077] Continuing with FIG10 , the first rotation groove 21a may include a first slide rail 211a and two second slide rails 212a. The first slide rail 211a is disposed on the bottom wall of the first rotation groove 21a. The two second slide rails 212a are respectively disposed on two opposing side walls of the first rotation groove 21a. The two second slide rails 212a are located on opposite sides of the first slide rail 211a, and the two second slide rails 212a are disposed side by side with the first slide rail 211a along the length direction (Y direction) of the bracket 20. Exemplarily, the bottom wall of the first rotation groove 21a is arc-shaped.

[0078] It is understood that the first slide rail 211a and the second slide rail 212a allow the swing arm to slide thereon, and the sliding movement of the swing arm on the first slide rail 211a and the second slide rail 212a can achieve the rotational movement of the swing arm and the first sub-bracket 201. Under this arrangement, by providing the first rotation slot 21a (swing arm slide slot) on the first sub-bracket 201, the space on the first sub-bracket 201 can be fully utilized and the structure of the first rotation slot 21a can be rationally arranged. Compared with the structure of providing the swing arm slide slot on the swing arm in the prior art, this allows the swing arm to occupy less space when folded, which is conducive to achieving a lighter and thinner device.

[0079] In addition, by providing the first slide rail 211a and the two second slide rails 212a in the first rotating groove 21a, the sliding trajectory of the swing arm can be jointly defined by the first slide rail 211a and the two second slide rails 212a. On the one hand, the sliding trajectory of the swing arm jointly defined by the first slide rail 211a and the two second slide rails 212a can reduce the precision requirements for the first rotating groove 21a, thereby reducing the processing difficulty and processing cost of the first sub-bracket 201. On the other hand, the sliding trajectory of the swing arm jointly defined by the first slide rail 211a and the two second slide rails 212a can make the first slide rail 211a and the two second slide rails 212a arranged in a distributed manner. The distributed arrangement of multiple slide rails can increase the strength of the first rotating groove 21a, making it less likely for the swing arm to deform and get stuck when sliding on the slide rails, and having good reliability.

[0080] 10 and 11 , FIG11 is a schematic top view of the first sub-bracket 201 shown in FIG10 . The first slide rail 211a may include a first connecting portion 213a and two first protrusions 214a , both of which are connected to the bottom wall of the first rotation slot 21a .

[0081] The two first protrusions 214a are arranged opposite to each other and spaced apart in the Y direction. The surface of each first protrusion 214a facing away from the bottom wall of the first rotation groove 21a is the track surface of the first slide rail 211a. Each first protrusion 214a includes a first end 215a and a second end 216a. The first end 215a is the end of the first protrusion 214a close to the edge of the first sub-bracket 201, and the second end 216a is the end of the first protrusion 214a away from the edge of the first sub-bracket 201. That is, the first end 215a is arranged close to the edge of the first sub-bracket 201 relative to the second end 216a. The cross-sectional height of each first protrusion 214a along the direction perpendicular to the bottom wall of the first rotation groove 21a gradually decreases from the first end 215a to the second end 216a. Under this configuration, the first end 215a can be positioned as the highest point in the first protrusion 214a, and the second end 216a can be positioned as the lowest point in the first protrusion 214a. This allows the track path of the first slide rail 211a to be arranged from high to low, gradually approaching the center of the first sub-bracket 201 from the edge of the first sub-bracket 201. This configuration facilitates full utilization of the structural space of the first sub-bracket 201 and achieves a track configuration of the first slide rail 211a with a height difference and a certain inclination angle, thereby improving reliability. For example, the first protrusion 214a can be arc-shaped. The curvature direction of the first protrusion 214a is substantially the same as the curvature direction of the bottom wall of the first rotation groove 21a.

[0082] The first connecting portion 213a is connected between the first ends 215a of the two first protrusions 214a. In other words, the first connecting portion 213a is located near the edge of the first sub-bracket 201. The first connecting portion 213a and the two first protrusions 214a cooperate to enclose an installation space C1. The bottom wall of the first rotation groove 21a is provided with a mounting hole D1. The mounting hole D1 penetrates the bottom wall of the first rotation groove 21a along the Z direction. The mounting hole D1 is located between the two first protrusions 214a and is located near the first connecting portion 213a. The mounting hole D1 is corresponding to the mounting post 14 on the base 10, so that the mounting post 14 on the base 10 can pass through the mounting hole D1 and be located within the installation space C1. Under this arrangement, on the one hand, the corresponding arrangement of the mounting hole D1 and the mounting post 14 can achieve rapid positioning of the first sub-bracket 201 during assembly with the base 10, which facilitates the convenient and quick assembly of the first sub-bracket 201 to the base 10. On the other hand, the corresponding arrangement of the mounting holes D1 and the mounting posts 14 enables a clamping connection between the first sub-bracket 201 and the base 10, restricting relative movement between the first sub-bracket 201 and the base 10 and preventing tilting, misalignment, shaking, or other displacement between the first sub-bracket 201 and the base 10. Furthermore, the mounting space C1 formed by the first connecting portion 213a and the two protrusions can also accommodate the mounting posts 14. This allows full utilization of the space on the first sub-bracket 201 without occupying additional space within the rotating mechanism 100, effectively improving the space utilization rate of the first sub-bracket 201.

[0083] Continuing with Figures 10 and 11, each second rail 212a is spaced apart from the first rail 211a. The two second rails 212a can be symmetrically distributed on either side of the first rail 211a, and the two second rails 212a and the first rail 211a can have the same curvature direction. Each second rail 212a includes a first protrusion 217a and a first track structure 218a. The first protrusion 217a is connected to the sidewall of the first rotation groove 21a, and the first track structure 218a is connected to the bottom wall of the first rotation groove 21a. The first protrusion 217a and the first track structure 218a are spaced apart from each other, and the gap between the first protrusion 217a and the first track structure 218a allows the swing arm to slide within it. The provision of the first protrusion 217a on the sidewall of the first rotation groove 21a can limit the swing arm installed in the first rotation groove 21a, thereby preventing the swing arm installed in the first rotation groove 21a from disengaging from the first rotation groove 21a. For example, the first track structure 218a may be arc-shaped.

[0084] In the embodiment of the present application, the first track structure 218a is provided with a first hollow portion 219a. The first hollow portion 219a is arranged opposite the first protrusion 217a and extends through the bottom wall of the first rotation groove 21a along the Z direction. It will be appreciated that the provision of the first hollow portion 219a allows the first sub-bracket 201 to be manufactured using a mold forming method, simplifying the processing of the first sub-bracket 201, thereby reducing production costs and improving production efficiency.

[0085] The second rotation groove 22a may include a third slide rail 221a and two fourth slide rails 222a. The third slide rail 221a is provided on the bottom wall of the second rotation groove 22a. The two fourth slide rails 222a are respectively provided on two opposite side walls of the second rotation groove 22a. The two fourth slide rails 222a are respectively located on opposite sides of the third slide rail 221a. The two fourth slide rails 222a are arranged side by side with the third slide rail 221a along the length direction (Y direction) of the bracket 20. For example, the bottom wall of the second rotation groove 22a is arc-shaped.

[0086] It is understood that the third and fourth slide rails 221a, 222a allow the swing arm to slide thereon, and the sliding movement of the swing arm on the third and fourth slide rails 221a, 222a enables the swing arm and the first sub-bracket 201 to rotate. In this arrangement, by providing the second rotation slot 22a (swing arm slot) on the first sub-bracket 201, the space on the first sub-bracket 201 can be fully utilized and the structure of the second rotation slot 22a can be rationally arranged. Compared to the prior art structure in which the swing arm slot is provided on the swing arm, this allows the swing arm to occupy less space when folded, thereby facilitating a thinner and lighter device.

[0087] In addition, by providing a third slide rail 221a and two fourth slide rails 222a in the second rotating groove 22a, the sliding trajectory of the swing arm can be jointly defined by the third slide rail 221a and the two fourth slide rails 222a. On the one hand, the sliding trajectory of the swing arm jointly defined by the third slide rail 221a and the two fourth slide rails 222a can reduce the precision requirements for the second rotating groove 22a, thereby reducing the processing difficulty and processing cost of the first sub-bracket 201. On the other hand, the sliding trajectory of the swing arm jointly defined by the third slide rail 221a and the two fourth slide rails 222a can make the third slide rail 221a and the two fourth slide rails 222a arranged in a distributed manner. The distributed arrangement of multiple slide rails can increase the strength of the second rotating groove 22a, making it less likely for the swing arm to deform and get stuck when sliding on the slide rails, and having good reliability.

[0088] 10 and 11 , the third slide rail 221 a may include a second connecting portion 223 a and two second protrusions 224 a , and the second connecting portion 223 a and the two second protrusions 224 a are both connected to the bottom wall of the second rotation groove 22 a .

[0089] The two second protrusions 224a are arranged opposite each other and spaced apart in the Y direction. The surface of each second protrusion 224a facing away from the bottom wall of the second rotation groove 22a is the track surface of the third slide rail 221a. Each second protrusion 224a includes a third end 225a and a fourth end 226a. The third end 225a is the end of the second protrusion 224a close to the edge of the first sub-bracket 201, and the fourth end 226a is the end of the second protrusion 224a away from the edge of the first sub-bracket 201. In other words, the third end 225a is arranged relative to the fourth end 226a close to the edge of the first sub-bracket 201. The cross-sectional height of each second protrusion 224a along the direction perpendicular to the bottom wall of the second rotation groove 22a gradually decreases from the third end 225a to the fourth end 226a. Under this configuration, the third end 225a can serve as the highest point in the second protrusion 224a, and the fourth end 226a can serve as the lowest point in the second protrusion 224a. This allows the track path of the third slide rail 221a to be arranged from high to low, gradually approaching the center of the first sub-bracket 201 from the edge of the first sub-bracket 201. This configuration facilitates full utilization of the structural space of the first sub-bracket 201, achieving a track configuration of the third slide rail 221a with a height difference and a certain inclination angle, thereby improving reliability. For example, the second protrusion 224a can be arc-shaped. The curvature direction of the second protrusion 224a is substantially the same as the curvature direction of the bottom wall of the second rotation groove 22a.

[0090] The second connecting portion 223a is connected between the third ends 225a of the two second protrusions 224a. That is, the second connecting portion 223a is positioned near the edge of the first sub-bracket 201. The second connecting portion 223a and the two second protrusions 224a cooperate to define a mounting space C2. The bottom wall of the second rotation slot 22a is provided with a mounting hole D2, which extends through the bottom wall of the second rotation slot 22a along the Z direction. The mounting hole D2 is located between the two second protrusions 224a and is positioned near the second connecting portion 223a. The mounting hole D2 corresponds to the mounting post 14 on the base 10, allowing the mounting post 14 on the base 10 to pass through the mounting hole D2 and be positioned within the mounting space C2. This arrangement, on the one hand, allows for quick positioning of the first sub-bracket 201 during assembly with the base 10 through the corresponding arrangement of the mounting hole D2 and the mounting post 14, facilitating quick and convenient assembly of the first sub-bracket 201 to the base 10. On the other hand, the corresponding arrangement of the mounting holes D2 and the mounting posts 14 enables a clamping connection between the first sub-bracket 201 and the base 10, restricting relative movement between the first sub-bracket 201 and the base 10 and preventing tilting, misalignment, shaking, or other displacement between the first sub-bracket 201 and the base 10. Furthermore, the mounting space C2 formed by the second connecting portion 223a and the two protrusions can also accommodate the mounting posts 14. This allows full utilization of the space on the first sub-bracket 201 without occupying additional space within the rotating mechanism 100, effectively improving the space utilization rate of the first sub-bracket 201.

[0091] Continuing with Figures 10 and 11, each fourth rail 222a is spaced apart from the third rail 221a. The two fourth rails 222a can be symmetrically located on either side of the third rail 221a, and the two fourth rails 222a and the third rail 221a can have the same curvature. Each fourth rail 222a includes a second protrusion 227a and a second track structure 228a. The second protrusion 227a is connected to the sidewall of the second rotation slot 22a, and the second track structure 228a is connected to the bottom wall of the second rotation slot 22a. The second protrusion 227a and the second track structure 228a are spaced apart from each other, and the gap between the second protrusion 227a and the second track structure 228a allows the swing arm to slide within. The second protrusion 227a provided on the sidewall of the second rotation slot 22a acts as a stop for the swing arm mounted in the second rotation slot 22a, thereby preventing the swing arm from disengaging from the second rotation slot 22a. For example, the second track structure 228a may be arc-shaped.

[0092] In the embodiment of the present application, the second track structure 228a is provided with a second hollow portion 229a. The second hollow portion 229a is arranged opposite the second protrusion 227a and extends through the bottom wall of the second rotation groove 22a along the Z direction. It will be appreciated that the provision of the second hollow portion 229a allows the first sub-bracket 201 to be manufactured using a mold forming method, simplifying the processing of the first sub-bracket 201, thereby reducing production costs and improving production efficiency.

[0093] Continuing with Figures 10 and 11 , the first sub-bracket 201 further comprises a third rotation slot 23a and a fourth rotation slot 24a, which are spaced apart in both the X and Y directions. The third rotation slot 23a is arranged side by side with the first rotation slot 21a in the Y direction. The structure of the third rotation slot 23a is substantially the same as that of the first rotation slot 21a. The third rotation slot 23a may include a fifth slide rail 231a and two sixth slide rails 232a. The fifth slide rail 231a is disposed on the bottom wall of the third rotation slot 23a, and the two sixth slide rails 232a are disposed on opposite side walls of the third rotation slot 23a. The structural design of the fifth and sixth guide rails 231a and 232a can refer to the aforementioned description of the first and second guide rails 211a and 212a in the first rotation groove 21a. Unless there is a conflict, the aforementioned description of the first and second guide rails 211a and 212a can be applied to the fifth and sixth guide rails 231a and 232a. The fourth rotation groove 24a and the second rotation groove 22a are arranged side by side in the Y direction. The structure of the fourth rotation groove 24a is substantially the same as that of the second rotation groove 22a. The fourth rotation groove 24a includes a seventh guide rail 241a and two eighth guide rails 242a. The seventh guide rail 241a is located on the bottom wall of the fourth rotation groove 24a, and the two eighth guide rails 242a are located on two opposing side walls of the fourth rotation groove 24a. The structural designs of the seventh slide rail 241a and the eighth slide rail 242a can refer to the aforementioned descriptions of the third slide rail 221a and the fourth slide rail 222a in the second rotating groove 22a. In the absence of conflict, the structural descriptions of the third slide rail 221a and the fourth slide rail 222a can be applied to the seventh slide rail 241a and the eighth slide rail 242a.

[0094] Referring to Figures 7 and 8 , the second sub-bracket 202 and the first sub-bracket 201 can be identical or similar components, symmetrical or partially symmetrical structures, or different structures. In the embodiment of the present application, the second sub-bracket 202 may include a first rotation slot 21b, a second rotation slot 22b, a third rotation slot 23b, and a fourth rotation slot 24b. The first rotation slot 21b and the second rotation slot 22b are arranged side by side along the X direction, and are axisymmetric about the axis of symmetry O. The third rotation slot 23b and the fourth rotation slot 24b are arranged side by side along the X direction, and are axisymmetric about the axis of symmetry O. The third rotation slot 23b and the first rotation slot 21b are arranged side by side along the Y direction, and the fourth rotation slot 24b and the second rotation slot 22b are arranged side by side along the Y direction. The basic structure of each component in the second sub-bracket 202, the connection relationship between the components, and the connection relationship between the components and components outside the assembly can all refer to the relevant design of the first sub-bracket 201. The second sub-bracket 202 may be the same as or different from the first sub-bracket 201 in terms of detailed structure or position arrangement of components.

[0095] The third sub-bracket 203 and the first sub-bracket 201 can be identical or similar components, symmetrical or partially symmetrical structures, or different structures. In this embodiment, the third sub-bracket 203 includes a first rotation slot 21c and a second rotation slot 22c. The first rotation slot 21c and the second rotation slot 22c are arranged side by side along the X direction, and the first rotation slot 21c and the second rotation slot 22c are symmetrical about the symmetry axis O. The basic structure of each component in the third sub-bracket 203, the connection relationship between the components, and the connection relationship between the components and components outside the assembly can all refer to the relevant design of the first sub-bracket 201.

[0096] The fourth sub-bracket 204 and the first sub-bracket 201 can be identical or similar components, symmetrical or partially symmetrical structures, or different structures. In this embodiment, the fourth sub-bracket 204 includes a first rotation slot 21d, a second rotation slot 22d, a third rotation slot 23d, and a fourth rotation slot 24d. The first rotation slot 21d and the second rotation slot 22d are arranged side by side along the X direction, and are axisymmetric about the axis of symmetry O. The third rotation slot 23d and the fourth rotation slot 24d are arranged side by side along the X direction, and are axisymmetric about the axis of symmetry O. The third rotation slot 23d and the first rotation slot 21d are arranged side by side along the Y direction, and the fourth rotation slot 24d and the second rotation slot 22d are arranged side by side along the Y direction. The basic structure of each component of the fourth sub-bracket 204, the connection relationships between components, and the connection relationships between components and components outside the assembly can all refer to the relevant design of the first sub-bracket 201.

[0097] Please refer to Figure 7 again. In the embodiment of the present application, there are four rotating swing arm assemblies 30, namely the first rotating swing arm assembly 301, the second rotating swing arm assembly 302, the third rotating swing arm assembly 303 and the fourth rotating swing arm assembly 304. The first rotating swing arm assembly 301, the second rotating swing arm assembly 302, the third rotating swing arm assembly 303 and the fourth rotating swing arm assembly 304 are arranged in sequence along the Y direction. Among them, the first rotating swing arm assembly 301 is located on the negative side of the Y axis of the base 10, and the fourth rotating swing arm assembly 304 is located on the positive side of the Y axis of the base 10. In other embodiments, the rotating swing arm assembly 30 can also be one, two, three or more than four. This application does not specifically limit the number of rotating swing arm assemblies 30.

[0098] Please refer to Figures 10 and 12 in conjunction. Figure 12 is a schematic structural diagram of the first rotating swing arm assembly 301 of the rotating swing arm assembly 30 shown in Figure 6. The first rotating swing arm assembly 301 can include a first main swing arm 31a and a second main swing arm 32a. The first main swing arm 31a and the second main swing arm 32a are spaced apart in both the X and Y directions.

[0099] The first main swing arm 31a is mounted in the first rotation slot 21a of the first sub-bracket 201. The first main swing arm 31a is capable of rotating and sliding relative to the first sub-bracket 201. The first main swing arm 31a is also rotatably connected to a first fixing plate (not shown). Rotation of the first fixing plate relative to the first sub-bracket 201 drives the first main swing arm 31a to rotate and slide relative to the first sub-bracket 201. The first fixing plate is also fixedly connected to the first housing 210. Rotation of the first housing 210 relative to the first sub-bracket 201 drives the first fixing plate to rotate relative to the first sub-bracket 201, thereby driving the first main swing arm 31a to rotate.

[0100] Referring to Figures 12, 13, and 14, Figure 13 is a schematic diagram showing a partial structure of the rotating mechanism 100 shown in Figure 6 in an unfolded state, and Figure 14 is a schematic diagram showing a partial structure of the rotating mechanism 100 shown in Figure 6 in a folded state. The first main swing arm 31a may include a first rotating body 311a, a first swinging body 312a, and a first rotating shaft 313a.

[0101] The first rotating body 311a is a circular arc-shaped plate-like structure. The first rotating body 311a can slide and rotate along the first slide rail 211a and the second slide rail 212a within the first rotating groove 21a. Specifically, the first rotating body 311a includes a first sliding portion 314a and two second sliding portions 315a. The two second sliding portions 315a are respectively connected to opposite sides of the first sliding portion 314a in the X direction. The first sliding portion 314a is located between the two second sliding portions 315a. The first sliding portion 314a is mounted on the first slide rail 211a and can slide on the first slide rail 211a. Each second sliding portion 315a is mounted on a second slide rail 212a and can slide on a second slide rail 212a. Specifically, each second sliding portion 315a is located in the gap area between a first protrusion 217a and a first track structure 218a. Under this setting, the structure of the first rotating body 311a can match the structure of the first rotating groove 21a of the first sub-bracket 201, the structure of the first sliding part 314a can match the structure of the first slide rail 211a, and the structure of the second sliding part 315a can match the structure of the second slide rail 212a, which is conducive to enabling the first main swing arm 31a to perform smooth rotational movement relative to the first sub-bracket 201.

[0102] The first sliding portion 314a and the two second sliding portions 315a cooperate to form a first recessed area 316a, which is capable of accommodating a portion of the first slide rail 211a. This arrangement allows the first sliding portion 314a to be recessed relative to the two second sliding portions 315a. When the first sliding portion 314a slides on the first slide rail 211a, the recessed area 316a formed by the first sliding portion 314a relative to the two second sliding portions 315a provides sufficient space to accommodate the first slide rail 211a. This helps improve the space utilization of the rotation mechanism 100 within a limited space layout, enhancing reliability.

[0103] The first rotating body 311a also has a first through-hole 317a, which communicates with the first recessed area 316a. As shown in Figure 13, when the rotating mechanism 100 is in the deployed state, the first through-hole 317a is used to allow the first slide rail 211a to pass through. This arrangement prevents the rotational motion of the first slide rail 211a and the first main swing arm 31a from interfering with each other, effectively preventing the rotating mechanism 100 from becoming stuck due to the first slide rail 211a obstructing the rotation of the first main swing arm 31a.

[0104] The first swinging member 312a is a plate-shaped structure. One end of the first swinging member 312a is fixedly connected to the first rotating member 311a, and the other end is fixedly connected to the first rotating shaft 313a. The axis of the first rotating shaft 313a extends parallel to the Y direction and can be connected to the first fixed plate.

[0105] Referring to Figures 10 and 12 , the second main swing arm 32a is mounted in the second rotation slot 22a of the first sub-bracket 201. The second main swing arm 32a is capable of rotating and sliding relative to the first sub-bracket 201. The second main swing arm 32a is also rotatably connected to a second fixing plate (not shown). Rotation of the second fixing plate relative to the first sub-bracket 201 drives the second main swing arm 32a to rotate and slide relative to the bracket 20. The second fixing plate is also fixedly connected to the second housing 220. Rotation of the second housing 220 relative to the first sub-bracket 201 drives the second fixing plate to rotate relative to the first sub-bracket 201, thereby driving the second main swing arm 32a to rotate.

[0106] The second main swing arm 32a is mounted in the fourth rotation slot 24a of the first sub-bracket 201. The second main swing arm 32a is capable of rotating and sliding relative to the first sub-bracket 201. The second main swing arm 32a is also rotatably connected to a second fixing plate (not shown). Rotation of the second fixing plate relative to the first sub-bracket 201 causes the second main swing arm 32a to rotate and slide relative to the first sub-bracket 201. The second fixing plate is also fixedly connected to the second housing 220. Rotation of the second housing 220 relative to the first sub-bracket 201 causes the second fixing plate to rotate relative to the first sub-bracket 201, thereby causing the second main swing arm 32a to rotate.

[0107] 12 , 13 and 14 , the second main swing arm 32 a may include a second rotating body 321 a , a second swinging body 322 a and a second rotating shaft 323 a .

[0108] The second rotating body 321a is an arc-shaped plate-like structure. It can slide and rotate within the second rotating groove 22a along the third and fourth slide rails 221a and 222a. Specifically, the second rotating body 321a includes a third sliding portion 324a and two fourth sliding portions 325a. The two fourth sliding portions 325a are respectively connected to opposite sides of the third sliding portion 324a in the X direction. The third sliding portion 324a is located between the two fourth sliding portions 325a. The third sliding portion 324a is mounted on the third slide rail 221a and can slide on the third slide rail 221a. Each fourth sliding portion 325a is mounted on a fourth slide rail 222a and can slide on a fourth slide rail 222a. Specifically, each fourth sliding portion 325a is located in the gap between a second protrusion 227a and a second track structure 228a. Under this setting, the structure of the second rotating body 321a can match the structure of the second rotating groove 22a of the first sub-bracket 201, the structure of the third sliding part 324a can match the structure of the third slide rail 221a, and the structure of the fourth sliding part 325a can match the structure of the fourth slide rail 222a, which is conducive to enabling the second main swing arm 32a to perform smooth rotational movement relative to the first sub-bracket 201.

[0109] The third sliding portion 324a and the two fourth sliding portions 325a cooperate to form a second recessed area 326a, which is capable of accommodating a portion of the third slide rail 221a. This arrangement allows the third sliding portion 324a to be recessed relative to the two fourth sliding portions 325a. When the third sliding portion 324a slides on the third slide rail 221a, the recessed area 326a formed by the third sliding portion 324a relative to the two fourth sliding portions 325a provides sufficient space to accommodate the third slide rail 221a. This improves the space utilization of the rotation mechanism 100 within a limited space layout, enhancing reliability.

[0110] The second rotating body 321a also has a second through-hole 327a, which communicates with the second recessed area 326a. As shown in Figure 13, when the rotating mechanism 100 is in the deployed state, the second through-hole 327a is used to allow the second slide rail 212a to pass through. This arrangement prevents the rotational movement of the second slide rail 212a and the second main swing arm 32a from interfering with each other, effectively preventing the rotating mechanism 100 from getting stuck due to the second slide rail 212a obstructing the rotation of the second main swing arm 32a.

[0111] The second swinging member 322a is a plate-shaped structure. One end of the second swinging member 322a is fixedly connected to the second rotating member 321a, and the other end is fixedly connected to the second rotating shaft 323a. The axis of the second rotating shaft 323a extends parallel to the Y direction and can be connected to the second fixed plate.

[0112] In the embodiment of the present application, the first main swing arm 31a and the second main swing arm 32a rotate in opposite directions. For example, when the rotation mechanism 100 switches from the flat state to the folded state, the first main swing arm 31a rotates clockwise, while the second main swing arm 32a rotates counterclockwise. When the rotation mechanism 100 switches from the folded state to the flat state, the first main swing arm 31a rotates counterclockwise, while the second main swing arm 32a rotates clockwise.

[0113] Referring to Figure 7 , the second pivoting swing arm assembly 302 and the first pivoting swing arm assembly 301 can be identical or similar components, symmetrical or partially symmetrical in structure, or different in structure. In this embodiment, the second pivoting swing arm assembly 302 includes a first main swing arm 31b and a second main swing arm 32b. The first main swing arm 31b can be mounted in the first rotation slot 21b of the second sub-bracket 202, and the second main swing arm 32b can be mounted in the second rotation slot 22b of the second sub-bracket 202. The first main swing arm 31b and the second main swing arm 32b are arranged side by side along the X-direction and are symmetrical about the axis of symmetry O. The basic structure of each component of the second pivoting swing arm assembly 302, the connections between components, and the connections between components and components outside the assembly can all refer to the design of the first pivoting swing arm assembly 301. The detailed structure and positional arrangement of the components of the second pivoting swing arm assembly 302 and the first pivoting swing arm assembly 301 can be identical or different, and this application does not impose specific restrictions on this.

[0114] The third rotating swing arm assembly 303 can be identical or similar to the first rotating swing arm assembly 301, and can have a symmetrical or partially symmetrical structure, or a different structure. In this embodiment, the third rotating swing arm assembly 303 includes a first main swing arm 31c and a second main swing arm 32c. The first main swing arm 31c can be mounted in the first rotation slot 21c of the third sub-bracket 203, and the second main swing arm 32c can be mounted in the second rotation slot 22c of the third sub-bracket 203. The first and second main swing arms 31c and 32c are arranged side by side along the X-direction and are axially symmetrical about the axis of symmetry O. The basic structure of each component of the third rotating swing arm assembly 303, the connections between components, and the connections between components and components outside the assembly can all refer to the design of the first rotating swing arm assembly 301. The detailed structure and positional arrangement of the components of the third rotating swing arm assembly 303 can be the same as or different from those of the first rotating swing arm assembly 301, and this application does not impose specific restrictions on this.

[0115] The fourth pivoting swing arm assembly 304 can be identical or similar to the first pivoting swing arm assembly 301, and can have symmetrical or partially symmetrical structures, or different structures. In this embodiment, the fourth pivoting swing arm assembly 304 includes a first main swing arm 31d and a second main swing arm 32d. The first main swing arm 31d can be mounted in the first rotation slot 21d of the fourth sub-bracket 204, and the second main swing arm 32d can be mounted in the second rotation slot 22d of the fourth sub-bracket 204. The first main swing arm 31d and the second main swing arm 32d are arranged side by side along the X-direction and are symmetrical about the axis of symmetry O. The basic structure of each component of the fourth pivoting swing arm assembly 304, the connections between components, and the connections between components and components outside the assembly can all refer to the relevant design of the first pivoting swing arm assembly 301. The detailed structure and positional arrangement of the components of the fourth pivoting swing arm assembly 304 can be the same as or different from those of the first pivoting swing arm assembly 301, and this application does not impose specific restrictions on this.

[0116] Please refer to Figure 7 again. In the embodiment of the present application, there are three pressure plate swing arm assemblies 40, and the three pressure plate swing arm assemblies 40 are respectively a first pressure plate swing arm assembly 401, a second pressure plate swing arm assembly 402 and a third pressure plate swing arm assembly 403. The first pressure plate swing arm assembly 401, the second pressure plate swing arm assembly 402 and the third pressure plate swing arm assembly 403 are arranged in sequence along the Y direction. Among them, the first pressure plate swing arm assembly 401 is located on the negative side of the Y axis of the base 10, and the third pressure plate swing arm assembly 403 is located on the positive side of the Y axis of the base 10. In other embodiments, the pressure plate swing arm assembly 40 can also be one, two, three or more than four. This application does not specifically limit the number of pressure plate swing arm assemblies 40.

[0117] Please refer to Figures 10 and 15 in conjunction. Figure 15 is a schematic structural diagram of the first platen swing arm assembly 401 of the platen swing arm assembly 40 shown in Figure 6. The first platen swing arm assembly 401 may include a first platen swing arm 41a and a second platen swing arm 42a. The first platen swing arm 41a and the second platen swing arm 42a are spaced apart in both the X and Y directions.

[0118] The first pressure plate swing arm 41a is installed in the third rotation slot 23a of the first sub-bracket 201. The first pressure plate swing arm 41a can rotate and slide relative to the first sub-bracket 201. The first pressure plate swing arm 41a can also be slidably connected to the first pressure plate (not shown), and the first pressure plate can be slidably connected to the first fixed plate. Therefore, when the first fixed plate rotates relative to the first sub-bracket 201, it drives the first pressure plate swing arm 41a to rotate and slide relative to the first sub-bracket 201. It can be understood that when the first shell 210 rotates relative to the first sub-bracket 201, the first shell 210 drives the first fixed plate to rotate relative to the first sub-bracket 201, the first fixed plate drives the first pressure plate to rotate relative to the first sub-bracket 201, and the first pressure plate slides relative to the first fixed plate. At the same time, the first pressure plate drives the first pressure plate swing arm 41a to rotate relative to the first sub-bracket 201.

[0119] Referring to Figures 13, 14, and 15, Figure 13 is a schematic diagram showing a portion of the rotating mechanism 100 shown in Figure 6 in an unfolded state, and Figure 14 is a schematic diagram showing a portion of the rotating mechanism 100 shown in Figure 6 in a folded state. The first pressure plate swing arm 41a may include a first pressure plate swinging body 411a and a first pressure plate rotating body 412a.

[0120] The first pressure plate rotating body 412a is an arc-shaped plate-like structure. The first pressure plate rotating body 412a can slide and rotate along the fifth slide rail 231a and the sixth slide rail 232a within the third rotation groove 23a. Specifically, the first pressure plate rotating body 412a includes a fifth sliding portion 413a and two sixth sliding portions 414a. The two sixth sliding portions 414a are respectively connected to opposite sides of the fifth sliding portion 413a in the X direction. The fifth sliding portion 413a is located between the two sixth sliding portions 414a. The fifth sliding portion 413a is mounted on the fifth slide rail 231a and can slide on the fifth slide rail 231a. Each sixth sliding portion 414a is mounted on a sixth slide rail 232a and can slide on a sixth slide rail 232a. Under this setting, the structure of the first pressure plate rotating body 412a can match the structure of the third rotating groove 23a of the first sub-bracket 201, the structure of the fifth sliding part 413a can match the structure of the fifth slide rail 231a, and the structure of the sixth sliding part 414a can match the structure of the sixth slide rail 232a, which is conducive to the first pressure plate swing arm 41a being able to rotate smoothly relative to the first sub-bracket 201.

[0121] The fifth sliding portion 413a and the two sixth sliding portions 414a cooperate to form a third recessed area 415a, which is capable of accommodating a portion of the fifth slide rail 231a. This arrangement allows the fifth sliding portion 413a to be recessed relative to the two sixth sliding portions 414a. When the fifth sliding portion 413a slides on the fifth slide rail 231a, the recessed area 415a formed by the fifth sliding portion 413a relative to the two sixth sliding portions 414a provides sufficient space to accommodate the fifth slide rail 231a. This improves the space utilization of the rotation mechanism 100 within a limited space layout, enhancing reliability.

[0122] The first pressure plate rotating body 412a also has a third through-hole 416a, which communicates with the third recessed area 415a. As shown in Figure 13, when the rotating mechanism 100 is in the deployed state, the third through-hole 416a allows the fifth slide rail 231a to pass through. This arrangement prevents the rotational movement of the fifth slide rail 231a and the first pressure plate swing arm 41a from interfering with each other, effectively preventing the rotating mechanism 100 from becoming stuck due to the fifth slide rail 231a obstructing the rotation of the first pressure plate swing arm 41a.

[0123] The first pressing plate swinging body 411a is a plate-shaped structure, one end of which is fixedly connected to the first pressing plate rotating body 412a, and the other end of which is slidably connected to the first pressing plate.

[0124] Please refer to Figures 10 and 15 in conjunction with the second pressure plate swing arm 42a, which is mounted in the fourth rotation slot 24a of the first sub-bracket 201. The second pressure plate swing arm 42a can rotate and slide relative to the first sub-bracket 201. The second pressure plate swing arm 42a can also be slidably connected to the second pressure plate (not shown), which in turn can be slidably connected to the second fixed plate. Thus, when the second fixed plate rotates relative to the first sub-bracket 201, it drives the second pressure plate swing arm 42a to rotate and slide relative to the first sub-bracket 201. It is understood that when the second housing 220 rotates relative to the first sub-bracket 201, the second housing 220 drives the second fixed plate to rotate relative to the first sub-bracket 201, which in turn drives the second pressure plate to rotate relative to the first sub-bracket 201, and the second pressure plate slides relative to the second fixed plate. Simultaneously, the second pressure plate drives the second pressure plate swing arm 42a to rotate relative to the first sub-bracket 201.

[0125] Please refer to FIG. 13 , FIG. 14 and FIG. 15 , the second pressure plate swing arm 42 a may include a second pressure plate swinging body 421 a and a second pressure plate rotating body 422 a .

[0126] The second pressure plate rotating body 422a is an arc-shaped plate-like structure. The second pressure plate rotating body 422a can slide and rotate along the seventh slide rail 241a and the eighth slide rail 242a within the fourth rotation groove 24a. Specifically, the second pressure plate rotating body 422a includes a seventh sliding portion 423a and two eighth sliding portions 424a. The two eighth sliding portions 424a are respectively connected to opposite sides of the seventh sliding portion 423a in the X direction. The seventh sliding portion 423a is located between the two eighth sliding portions 424a. The seventh sliding portion 423a is mounted on the seventh slide rail 241a and can slide on the seventh slide rail 241a. Each eighth sliding portion 424a is mounted on an eighth slide rail 242a, and each eighth sliding portion 424a can slide on an eighth slide rail 242a. Under this setting, the structure of the second pressure plate rotating body 422a can match the structure of the fourth rotating groove 24a of the first sub-bracket 201, the structure of the seventh sliding part 423a can match the structure of the seventh slide rail 241a, and the structure of the eighth sliding part 424a can match the structure of the eighth slide rail 242a, which is conducive to the second pressure plate swing arm 42a being able to rotate smoothly relative to the first sub-bracket 201.

[0127] The seventh sliding portion 423a and the two eighth sliding portions 424a cooperate to form a fourth recessed area 425a, which is capable of accommodating a portion of the seventh slide rail 241a. This arrangement allows the seventh sliding portion 423a to be recessed relative to the two eighth sliding portions 424a. When the seventh sliding portion 423a slides on the seventh slide rail 241a, the fourth recessed area 425a formed by the seventh sliding portion 423a being recessed relative to the two eighth sliding portions 424a provides sufficient space to accommodate the seventh slide rail 241a. This improves the space utilization of the rotation mechanism 100 within a limited spatial layout, enhancing reliability.

[0128] The second pressure plate rotating body 422a also has a fourth through-hole 426a, which communicates with the fourth recessed area 425a. As shown in Figure 13, when the rotating mechanism 100 is in the deployed state, the fourth through-hole 426a is used to allow the seventh slide rail 241a to pass through. This arrangement prevents the rotational movement of the seventh slide rail 241a and the second pressure plate swing arm 42a from interfering with each other, effectively preventing the rotating mechanism 100 from becoming stuck due to the seventh slide rail 241a obstructing the rotation of the second pressure plate swing arm 42a.

[0129] The second pressing plate swinging body 421a is a plate-shaped structure, one end of which is fixedly connected to the second pressing plate rotating body 422a, and the other end of which is slidably connected to the second pressing plate.

[0130] In the embodiment of the present application, the first pressure plate swing arm 41a and the second pressure plate swing arm 42a rotate in opposite directions. For example, when the rotation mechanism 100 switches from the flat state to the folded state, the first pressure plate swing arm 41a rotates clockwise, while the second pressure plate swing arm 42a rotates counterclockwise. When the rotation mechanism 100 switches from the folded state to the flat state, the first pressure plate swing arm 41a rotates counterclockwise, while the second pressure plate swing arm 42a rotates clockwise.

[0131] Referring to Figure 7 , the second pressure plate swing arm assembly 402 and the first pressure plate swing arm assembly 401 can be identical or similar components, symmetrical or partially symmetrical structures, or different structures. In this embodiment, the second pressure plate swing arm assembly 402 includes a first pressure plate swing arm 41b and a second pressure plate swing arm 42b. The first pressure plate swing arm 41b can be mounted in the third rotation slot 23b of the second sub-bracket 202, and the second pressure plate swing arm 42b can be mounted in the fourth rotation slot 24b of the second sub-bracket 202. The first pressure plate swing arm 41b and the second pressure plate swing arm 42b are arranged side by side along the X direction, and are symmetrical about the symmetry axis O. The basic structure of each component in the second pressure plate swing arm assembly 402, the connection relationship between the components, and the connection relationship between the components and components outside the assembly can all refer to the relevant design of the first pressure plate swing arm assembly 401. The second pressure plate swing arm assembly 402 and the first pressure plate swing arm assembly 401 may be the same or different in the detailed structure or position arrangement of the components, and this application does not make any specific restrictions on this.

[0132] The third pressure plate swing arm assembly 403 and the first pressure plate swing arm assembly 401 can be identical or similar components, symmetrical or partially symmetrical structures, or different structures. In this embodiment, the third pressure plate swing arm assembly 403 includes a first pressure plate swing arm 41c and a second pressure plate swing arm 42c. The first pressure plate swing arm 41c can be mounted in the third rotation slot 23c of the fourth sub-bracket 204, and the second pressure plate swing arm 42c can be mounted in the fourth rotation slot 24c of the fourth sub-bracket 204. The first pressure plate swing arm 41c and the second pressure plate swing arm 42c are arranged side by side along the X direction and are symmetrical about the symmetry axis O. The basic structure of each component in the third pressure plate swing arm assembly 403, the connection relationship between components, and the connection relationship between components and components outside the assembly can all refer to the relevant design of the first pressure plate swing arm assembly 401. The third pressure plate swing arm assembly 403 and the first pressure plate swing arm assembly 401 may be the same or different in the detailed structure or position arrangement of the components, and this application does not make any specific restrictions on this.

[0133] The above is a detailed introduction to the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A rotating mechanism, characterized in that: The rotating mechanism includes a bracket, a first main swing arm and a second main swing arm; The bracket is provided with a first rotation groove and a second rotation groove, wherein the first rotation groove and the second rotation groove are distributed on opposite sides of the bracket; The first rotating groove includes a first slide rail and two second slide rails, the two second slide rails are respectively located on opposite sides of the first slide rail and are arranged side by side with the first slide rail along the length direction of the bracket. The first main swing arm is installed in the first rotating groove. The first main swing arm can slide on the first slide rail and the two second slide rails, and the first main swing arm can rotate relative to the bracket. The second rotating groove includes a third slide rail and two fourth slide rails. The two fourth slide rails are respectively located on opposite sides of the third slide rail and are arranged side by side with the third slide rail along the length direction of the bracket. The second main swing arm is installed in the second rotating groove. The second main swing arm can slide on the third slide rail and the two fourth slide rails. The second main swing arm can rotate relative to the bracket. The rotation direction of the second main swing arm is opposite to that of the first main swing arm.

2. The rotating mechanism according to claim 1, wherein: The first main swing arm includes a first sliding part and two second sliding parts, the two second sliding parts are connected to opposite sides of the first sliding part, the first sliding part is installed on the first slide rail, and each second sliding part is installed on one second slide rail.

3. The rotating mechanism according to claim 2, wherein: The first sliding portion and the two second sliding portions cooperate to form a first recessed area, and a portion of the first sliding rail is located in the first recessed area.

4. The rotating mechanism according to claim 3, wherein: A first through hole is provided on the first main swing arm, the first through hole is connected to the first recessed area, and the first through hole is used for the first slide rail to pass through.

5. The rotating mechanism according to any one of claims 2 to 4, characterized in that: The first slide rail includes two oppositely arranged first protrusions, and the surface of each first protrusion facing away from the bottom wall of the first rotating groove contacts the first sliding portion. Each first protrusion includes a first end and a second end, and the first end is arranged near the edge of the bracket relative to the second end. The cross-sectional height of each first protrusion along the direction perpendicular to the bottom wall of the first rotating groove gradually decreases from the first end to the second end.

6. The rotating mechanism according to claim 5, wherein: The rotating mechanism also includes a base, the bracket is fixed to the base, the base is provided with a mounting post, the first slide rail also includes a first connecting portion, the first connecting portion is connected between the first ends of the two first protrusions, the first connecting portion and the two first protrusions cooperate to enclose an installation space, the bracket is provided with a mounting hole, the mounting hole is located between the two first protrusions and is arranged close to the first connecting portion, the mounting post passes through the mounting hole, and the mounting post is located in the installation space.

7. The rotating mechanism according to any one of claims 2 to 6, characterized in that: Each of the first sliding rails includes a first protrusion and a first track structure, the first protrusion is connected to the side wall of the first rotation groove, the first track structure is connected to the bottom wall of the first rotation groove, the first protrusion and the first track structure are spaced apart, and the second sliding portion is located in the gap area between the first protrusion and the first track structure.

8. The rotating mechanism according to claim 7, wherein: The first track structure is provided with a first hollow portion, the first hollow portion is arranged opposite to the first protrusion, and the first hollow portion passes through the bottom wall of the first rotation groove.

9. The rotating mechanism according to any one of claims 1 to 8, characterized in that: The first rotation groove and the second rotation groove are an integrated structure.

10. The rotating mechanism according to any one of claims 1 to 9, characterized in that: The rotating mechanism further includes a base, the bracket is fixed to the base, and the orthographic projections of the first rotating groove and the second rotating groove on the base completely fall on the base.

11. An electronic device, characterized in that: The electronic device includes a first housing, a second housing, and the rotation mechanism according to any one of claims 1 to 10, wherein the rotation mechanism is connected between the first housing and the second housing.

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