Rotating mechanism and foldable electronic device

Abstract

The application provides a rotating mechanism and a foldable electronic device. The rotating mechanism comprises a bearing base, a first swing arm, a second swing arm, an adjusting piece, an elastic piece and a driving piece. The first swing arm and the second swing arm are rotationally connected to the bearing base. The bearing base is provided with a mounting cavity, the adjusting piece and the elastic piece are mounted in the mounting cavity, one end of the elastic piece abuts against the cavity wall surface of the mounting cavity, and the other end of the elastic piece abuts against the adjusting piece. One end of the driving piece extends into the mounting cavity and is connected to the adjusting piece, and the driving piece is used for driving the adjusting piece to move. The adjusting piece is provided with a first matching part and a second matching part, the first swing arm is provided with a first abutting part, the second swing arm is provided with a second abutting part, the first abutting part abuts against the first matching part, and the second abutting part abuts against the second matching part, so that the first swing arm and the second swing arm are in a flat state relative to the bearing base. In the assembling process of the foldable electronic device, the flat angle can be adjusted, the product yield is higher, resource waste is avoided, the product is more durable, and the service life is longer.

Description

Technical Field

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

[0002] With the development of technology, various electronic devices have become indispensable products in daily life and production. Among them, foldable electronic devices have gradually become a development trend due to their advantages of larger display area and portability.

[0003] Foldable electronic devices generally have two states: folded and unfolded. When folded, they are easy to carry; when unfolded, they offer a larger display area and are very convenient to use. To ensure a flat display, the optimal unfolding angle for a foldable electronic device is 180 degrees.

[0004] However, due to the existence of errors, the unfolding angle of foldable electronic devices is uncontrollable, making it difficult to achieve a 180-degree unfolding angle. If the unfolding angle error of a foldable electronic device is large, the display screen's display effect and feel will be poor, thus affecting the user experience. More seriously, foldable electronic devices may need to be scrapped, resulting in huge waste. Summary of the Invention

[0005] This application provides a rotating mechanism and a foldable electronic device. During product assembly, if a large error in the flattening angle is found during testing, the flattening angle can be adjusted using an adjusting component, eliminating the need to scrap finished products with large flattening angle errors and saving resources. Furthermore, the elastic element of the adjusting component continuously supports the adjusting component, resulting in better stability. The flattening angle between the first and second swing arms can be maintained at 180 degrees for a long time, as can the flattening angle between the first and second housings. This makes the foldable electronic device more durable and has a longer lifespan.

[0006] This application provides a rotating mechanism, which includes a support base, a first swing arm, a second swing arm, a first mounting member, a second mounting member, and an adjustment assembly. The support base is disposed between the first and second swing arms, both of which are rotatably connected to the support base. The support base has a mounting cavity. The adjustment assembly includes an adjustment member, an elastic member, and a driving member. The adjustment member and the elastic member are mounted in the mounting cavity. Along the thickness direction of the rotating mechanism, the elastic member is located between the adjustment member and the cavity wall of the mounting cavity, with one end of the elastic member abutting against the cavity wall and the other end abutting against the adjustment member. The driving member is mounted on the support base, with one end extending into the mounting cavity and connected to the adjustment member. The driving member and the elastic member are used to drive the adjustment member to move along the thickness direction of the rotating mechanism. The adjusting component has a first mating part and a second mating part, the first swing arm has a first abutting part, and the second swing arm has a second abutting part. Along the width direction of the rotating mechanism, the first abutting part abuts against the first mating part, and the second abutting part abuts against the second mating part, so that the first swing arm and the second swing arm are flattened relative to the bearing base.

[0007] A rotating mechanism is used in a foldable electronic device. The rotating mechanism is positioned between a first housing and a second housing of the foldable electronic device. A first mounting member is fixed to the first housing, and a second mounting member is fixed to the second housing. A first swing arm slides and rotates on the side away from the support base, connected to the first mounting member. A second swing arm slides and rotates on the side away from the support base, connected to the second mounting member. The display screen of the foldable electronic device is mounted on the first housing, the rotating mechanism, and the second housing.

[0008] The first and second swing arms can rotate relative to the support base. The first swing arm slides and rotates relative to the first housing, and the second swing arm slides and rotates relative to the second housing, thereby causing the first and second housings to rotate relative to the support base. This allows the foldable electronic device to switch between a folded state and a flattened state. When the first and second swing arms are flattened relative to the support base, both the first and second housings are also flattened, and the display screen is unfolded, providing a larger display area. When the first and second swing arms are folded relative to the support base, both the first and second housings are folded, reducing the width of the foldable electronic device and making it easier to carry.

[0009] When the first and second swing arms rotate to the flattened state, the first abutting part of the first swing arm abuts against the first mating part of the adjusting member, and the second abutting part of the second swing arm abuts against the second mating part of the adjusting member. At this time, the first and second swing arms cannot continue to rotate, and the first and second swing arms are flattened relative to the bearing base, as are the first and second housings. Theoretically, the flattening angle between the first and second housings at this time is 180 degrees. However, due to the existence of errors, the flattening angle between the first and second housings is not necessarily equal to 180 degrees; the flattening angle between the first and second housings may be greater than 180 degrees or less than 180 degrees.

[0010] In this embodiment, the adjusting component can move along the thickness direction of the rotating mechanism. The first mating part pushes against or moves away from the first abutting part, and the second mating part pushes against or moves away from the second abutting part, causing the first and second swing arms to rotate relative to the bearing base. The flattening angle between the first and second swing arms is adjusted to 180 degrees, and consequently, the flattening angle between the first and second housings is adjusted to 180 degrees. During the assembly of the rotating mechanism, the adjusting component moves along the thickness direction of the rotating mechanism via the drive component. The operator can adjust the flattening angle between the first and second housings by adjusting the drive component, which is convenient and improves assembly efficiency. It is understood that after the rotating mechanism is assembled and installed on the foldable electronic device, the adjusting component cannot be moved further.

[0011] Furthermore, during the movement of the adjusting component, the elastic element continuously abuts against it, and the elastic force of the elastic element continuously supports the adjusting component, which helps improve the stability of the adjusting component's movement. Simultaneously, after the flattening angle between the first and second housings is adjusted to 180 degrees, the adjusting component needs to remain stationary. In this stationary state, the elastic element maintains its abutting position against the adjusting component, and its elastic force maintains its supporting position, which helps prevent the adjusting component from wobbling, allowing it to remain stably stationary. The positions of the first and second mating parts do not easily change, thus ensuring that the abutting positions of the first and second supporting parts remain constant, and consequently, that the flattening angle between the first and second swing arms and the first and second housings can be maintained at 180 degrees for a long time. This makes the foldable electronic device more durable and extends its lifespan.

[0012] In some embodiments, the first mating part has a first inclined surface, and the second mating part has a second inclined surface. Both the first and second inclined surfaces are inclined relative to a reference surface, which is perpendicular to the thickness direction of the rotating mechanism. The first and second inclined surfaces have opposite inclination directions, with the first inclined surface facing upward to the left and the second inclined surface facing upward to the right. The first abutting part has a first abutting surface, and the second abutting part has a second abutting surface. Both the first and second abutting surfaces are inclined relative to the reference surface, and their inclination directions are opposite, with the first abutting surface facing downward to the right and the second abutting surface facing downward to the left. When the first swing arm and the second swing arm are in a flattened state relative to the bearing base, the first abutting surface abuts against the first inclined surface, and the second abutting surface abuts against the second inclined surface.

[0013] In this embodiment, by setting a first abutting surface to abut against a first inclined surface, and a second abutting surface to abut against a second inclined surface, the first and second swing arms stop rotating, thereby causing them to flatten out. The surface-to-surface contact improves the force distribution between the first abutting part and the first mating part, as well as between the second abutting part and the second mating part, resulting in higher stability. Simultaneously, wear on the first abutting part, the second abutting part, the first mating part, and the second mating part is reduced, thus extending the product's lifespan.

[0014] In some embodiments, the driving member and the elastic member can drive the adjusting member to move along the thickness direction of the rotating mechanism, the first inclined surface pushes against or moves away from the first abutting surface, the second inclined surface pushes against or moves away from the second abutting surface, and the first swing arm and the second swing arm rotate relative to the bearing base, thereby changing the flattening angle of the first swing arm and the second swing arm.

[0015] In some embodiments, the driving member and the elastic member drive the adjusting member to move along a first direction, a first inclined surface pushes against a first abutting surface, and a second inclined surface pushes against a second abutting surface, so that the first swing arm rotates along a first rotation direction and the second swing arm rotates along a second rotation direction, thereby reducing the flattening angle of the first and second swing arms. In another embodiment, the driving member and the elastic member drive the adjusting member to move along a second direction, the first inclined surface moves away from the first abutting surface, and the second inclined surface moves away from the second abutting surface, so that the first swing arm rotates along the second rotation direction and the second swing arm rotates along the first rotation direction, thereby increasing the flattening angle of the first and second swing arms.

[0016] The first direction is parallel to the thickness direction of the rotating mechanism, and the second direction is parallel to the thickness direction of the rotating mechanism, but opposite to the first direction. One of the first and second rotation directions is clockwise, and the other is counterclockwise.

[0017] In some embodiments, the driving member is a screw, including a threaded portion and a head, with the threaded portion connected to the head along the length of the driving member. The mounting cavity includes a first cavity wall, and the bearing base includes a first outer surface, which faces away from the first cavity wall along the thickness direction of the rotating mechanism. Along the thickness direction of the rotating mechanism, the threaded portion passes sequentially through the first outer surface and the first cavity wall into the mounting cavity and is threadedly connected to the adjusting member. The head abuts against the side of the bearing base opposite to the first cavity wall. Along the thickness direction of the rotating mechanism, an elastic member is located between the first cavity wall and the adjusting member, with one end of the elastic member abutting against the adjusting member and the other end abutting against the first cavity wall.

[0018] In this embodiment, the driving component is a screw. The operator can use a screwdriver to rotate the driving component to loosen or tighten it. When the driving component is loosened, the adjusting component moves away from the first cavity wall under the elastic force of the elastic component. When the driving component is tightened, the adjusting component moves closer to the first cavity wall. This makes adjustment convenient and helps improve assembly efficiency.

[0019] In some embodiments, the supporting base includes a central beam and a cover plate, with the cover plate and the central beam stacked and fixed along the thickness direction of the rotating mechanism. A first receiving groove is recessed on the surface of the central beam facing the cover plate, extending through both sides of the central beam along the width direction of the rotating mechanism. A second receiving groove is recessed on the surface of the cover plate facing the central beam, extending through both sides of the cover plate along the width direction of the rotating mechanism. The first and second receiving grooves are opposite to and communicate with each other along the thickness direction of the rotating mechanism to form a mounting cavity.

[0020] In this embodiment, by setting the load-bearing base as a middle beam and a cover plate, i.e., a split design of the load-bearing base, assembly is facilitated, thereby improving assembly efficiency.

[0021] In some embodiments, along the thickness direction of the rotating mechanism, the first outer surface is the surface of the middle beam facing away from the cover plate, and the first cavity wall is the bottom surface of the first receiving groove. The side of the middle beam facing the first outer surface is used to mount the display screen. It can be understood that the threaded portion of the drive member passes through the middle beam into the mounting cavity, and the head of the drive member abuts against the side of the middle beam facing away from the first receiving groove.

[0022] The final assembly step for the foldable electronic device is installing the display screen. In this embodiment, the threaded portion of the drive component passes through the central beam and enters the mounting cavity. The head of the drive component abuts against the side of the central beam opposite to the first receiving groove, meaning the drive component is locked in from the central beam. During the assembly of the foldable electronic device, the head of the drive component is exposed before the display screen is installed. Therefore, before the display screen is installed, workers can use a screwdriver to rotate the drive component, allowing them to adjust the flattening angle between the first and second housings before the display screen is installed.

[0023] In some embodiments, the second receiving groove extends through both sides of the cover plate along the thickness direction of the rotating mechanism. In this case, the size of the second receiving groove in the thickness direction of the rotating mechanism increases, the size of the mounting cavity in the thickness direction of the rotating mechanism increases, and when the adjusting member has a larger moving distance in the thickness direction of the rotating mechanism, or when the size of the adjusting member in the thickness direction of the rotating mechanism is set to be larger, the mounting cavity can meet the larger moving distance and larger external dimensions of the adjusting member.

[0024] Therefore, in this embodiment, the size of the mounting cavity in the thickness direction of the rotating mechanism is increased by the second receiving groove penetrating the cover plate. This design does not require the thickness of the cover plate to be increased in the thickness direction of the rotating mechanism at the same time, thereby ensuring that the overall thickness of the rotating mechanism is thinner, which is more conducive to the thin and light design of foldable electronic devices.

[0025] If the cover plate is not completely disconnected, and the size of the second receiving groove in the thickness direction of the rotating mechanism is increased, in order to ensure the structural strength of the cover plate at the second receiving groove, the side of the cover plate away from the second receiving groove needs to be thickened along the thickness direction of the rotating mechanism. This will result in a larger thickness of the rotating mechanism, and consequently a larger thickness of the foldable electronic device.

[0026] In some embodiments, along the thickness direction of the rotating mechanism, the first outer surface is the surface of the cover plate facing away from the middle beam, the first cavity wall is the bottom surface of the second receiving groove, and the side of the middle beam facing away from the cover plate is used to mount the display screen. It can be understood that the threaded portion of the drive component passes through the cover plate into the mounting cavity, and the head of the drive component abuts against the side of the cover plate facing away from the second receiving groove.

[0027] The side of the center beam away from the cover plate is used to install the display screen. In this embodiment, the threaded part of the drive component passes through the cover plate and enters the mounting cavity. The head of the drive component abuts against the side of the cover plate away from the second receiving groove, that is, the drive component is locked in from the cover plate. The center beam does not need to be provided with screw holes or have a drive component installed. The surface of the center beam away from the cover plate is flatter, which is beneficial for the installation of the display screen.

[0028] In some embodiments, the first receiving groove extends through both sides of the middle beam along the thickness direction of the rotating mechanism. In this case, when the size of the first receiving groove in the thickness direction of the rotating mechanism increases, the size of the mounting cavity in the thickness direction of the rotating mechanism increases, and the adjusting member has a larger moving distance in the thickness direction of the rotating mechanism, or when the size of the adjusting member in the thickness direction of the rotating mechanism is set to be larger, the mounting cavity can accommodate a larger moving distance and a larger overall size of the adjusting member.

[0029] Therefore, in this embodiment, the size of the mounting cavity in the thickness direction of the rotating mechanism is increased by passing the first receiving groove through the middle beam. This design does not require the thickness of the middle beam to be increased in the thickness direction of the rotating mechanism at the same time, thereby ensuring that the overall thickness of the rotating mechanism is thinner, which is more conducive to the thin and light design of foldable electronic devices.

[0030] If the central beam is not completely broken, and the size of the first receiving groove in the thickness direction of the rotating mechanism is increased, in order to ensure the structural strength of the central beam at the first receiving groove, the side of the central beam away from the first receiving groove needs to be thickened along the thickness direction of the rotating mechanism. This will result in a larger thickness of the rotating mechanism, and consequently a larger thickness of the foldable electronic device.

[0031] In some embodiments, the driving member is a screw, and the driving member includes a threaded portion. The mounting cavity includes a first cavity wall and a second cavity wall, and the bearing base includes a first outer surface. Along the thickness direction of the rotating mechanism, the first cavity wall and the second cavity wall are spaced apart and opposite to each other, and the first outer surface is opposite to the first cavity wall. Along the thickness direction of the rotating mechanism, an elastic member is disposed between the second cavity wall and the adjusting member, one end of the elastic member abutting against the second cavity wall, and the other end of the elastic member abutting against the adjusting member. The threaded portion is threadedly connected to the bearing base, and along the thickness direction of the rotating mechanism, the threaded portion passes sequentially through the first outer surface and the first cavity wall into the mounting cavity, and abuts against the side of the adjusting member opposite to the elastic member.

[0032] In this embodiment, the adjusting member is supported on both sides along the thickness direction of the rotating mechanism by the driving member and the elastic member to achieve installation. The structure is simple, the assembly is convenient, and it is beneficial to improve the assembly efficiency.

[0033] In some embodiments, a fixing groove is recessed in the wall of the mounting cavity along the thickness direction of the rotating mechanism. One end of the elastic element extends into the fixing groove and abuts against the bottom surface of the groove. By providing the fixing groove, the side surface of the fixing groove can limit the elastic element and prevent it from falling out of the mounting cavity.

[0034] In some embodiments, along the thickness direction of the rotating mechanism, the adjusting member has a recessed abutment groove on the side facing the elastic member, and one end of the elastic member extends into the abutment groove and abuts against the bottom surface of the groove. By providing the abutment groove, the side surface of the groove can limit the elastic member and prevent the elastic member from falling out of the mounting cavity.

[0035] In some embodiments, a fixing post is provided on the bottom surface of the support groove, and one end of the elastic element is sleeved on the fixing post and abuts against the bottom surface of the support groove. By providing the fixing post, the elastic element is further limited. In addition, the fixing post can play a guiding role during the compression and rebound of the elastic element.

[0036] In some embodiments, the adjusting member is provided with a guide post, and the supporting base is provided with a guide hole; alternatively, the adjusting member is provided with a guide hole, and the supporting base is provided with a guide post. The axial direction of both the guide post and the guide hole is parallel to the thickness direction of the rotating mechanism, and the guide post extends into the guide hole. By providing a guide post and a guide hole, the stability of the adjusting member's movement is improved.

[0037] In some embodiments, a welding groove is recessed on the surface of the support base away from the adjusting member along the thickness direction of the rotating mechanism. The welding groove communicates with the guide hole, and the center of the projection of the welding groove in the thickness direction of the rotating mechanism coincides with the center of the projection of the guide hole in the thickness direction of the rotating mechanism. The diameter of the welding groove is larger than the diameter of the guide hole, and the guide post is exposed through the welding groove.

[0038] After adjusting the flattening angle between the first and second housings to 180 degrees, the workers weld and fix the guide posts into the guide holes. In this embodiment, by setting a welding groove with a larger diameter, welding is more convenient, thereby improving assembly efficiency. In addition, the welding groove can accommodate weld marks, preventing them from protruding from the side of the central beam away from the cover plate, which is beneficial for the installation of the display screen.

[0039] In some embodiments, the rotating mechanism further includes a first mounting member and a second mounting member. The first mounting member is disposed on the side of the first swing arm opposite to the support base, and the second mounting member is disposed on the side of the second swing arm opposite to the support base. One side of the first swing arm is rotatably connected to the support base, and the side of the first swing arm away from the support base is slidably and rotatably connected to the first mounting member. One side of the second swing arm is rotatably connected to the support base, and the side of the second swing arm away from the support base is slidably and rotatably connected to the second mounting member.

[0040] In this embodiment, by providing a first mounting component and a second mounting component, it is convenient to connect the first housing and the second housing to the rotating mechanism, making assembly easier and thus improving assembly efficiency.

[0041] A second aspect of this application provides a foldable electronic device, including a first housing, a second housing, and a rotating mechanism provided in the first aspect of this application. The rotating mechanism is disposed between the first housing and the second housing. A first swing arm is connected to the first housing on the side away from the support base, and a second swing arm is connected to the second housing on the side away from the support base. The first swing arm and the second swing arm rotate relative to the support base to drive the first housing and the second housing to rotate relative to the support base. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0043] Figure 1This is a schematic diagram of the structure of the foldable electronic device provided in the embodiments of this application in the first state.

[0044] Figure 2 This is a schematic diagram of the structure of the foldable electronic device provided in the embodiments of this application in the second state.

[0045] Figure 3 yes Figure 1 The diagram shows the structural structure of the main body of the foldable electronic device.

[0046] Figure 4 yes Figure 3 The diagram shows the structural schematic of the rotating mechanism of the main body.

[0047] Figure 5 yes Figure 4 The diagram shows the split structure of the rotating mechanism.

[0048] Figure 6 yes Figure 5 The diagram shows the split structure of the bearing base of the rotating mechanism.

[0049] Figure 7 yes Figure 6 The diagram shows the structural schematic of the central beam of the load-bearing base.

[0050] Figure 8 yes Figure 6 A schematic diagram of the structure of the first cover plate of the supporting base shown.

[0051] Figure 9 yes Figure 6 A schematic diagram of the structure of the second cover plate of the supporting base shown.

[0052] Figure 10 yes Figure 5 The cross-sectional view of the bearing base of the rotating mechanism shown is cut along line L1-L1.

[0053] Figure 11 yes Figure 5 The cross-sectional view of the bearing base of the rotating mechanism shown is cut along line L2-L2.

[0054] Figure 12 yes Figure 4 A schematic diagram of the structure of the first adjusting component of the rotating mechanism shown.

[0055] Figure 13 yes Figure 4 A schematic diagram of the structure of the second adjusting component of the rotating mechanism shown.

[0056] Figure 14 yes Figure 4 The diagram shows the structure of the swing arm assembly of the rotating mechanism.

[0057] Figure 15 yes Figure 3 An enlarged view of point A on the main body shown.

[0058] Figure 16 yes Figure 15 The diagram shown is a cross-sectional view taken along line L3-L3 when the main body is in a flattened state.

[0059] Figure 17 yes Figure 15 The diagram shown is a cross-sectional view taken along line L4-L4 when the main body is in a flattened state.

[0060] Figure 18 yes Figure 4 The rotating mechanism shown is a cross-sectional view taken along L5-L5 (the first and second mounting parts are omitted).

[0061] Figure 19 This is a force analysis diagram when the angle between the first and second swing arms is greater than 180 degrees.

[0062] Figure 20 This is an adjustment diagram when the angle between the first and second swing arms is less than 180 degrees.

[0063] Figure 21 yes Figure 4 The rotating mechanism shown is a cross-sectional view taken along line L6-L6 in another embodiment (the first swing arm, second swing arm, first mounting member, and second mounting member are omitted).

[0064] Figure 22 yes Figure 4 The rotating mechanism shown is a cross-sectional view taken along line L6-L6 in another embodiment (the first swing arm, second swing arm, first mounting member, and second mounting member are omitted).

[0065] Figure 23 yes Figure 4 The rotating mechanism shown is a cross-sectional view taken along line L6-L6 in another embodiment (the first swing arm, second swing arm, first mounting member, and second mounting member are omitted).

[0066] Figure 24 yes Figure 4 The diagram shows a partial structural schematic of the bearing base of the rotating mechanism in another embodiment.

[0067] Figure 25 yes Figure 24 The diagram shows the assembly structure of the support base and the first adjusting component.

[0068] Figure 26 yes Figure 25 A three-dimensional sectional view cut along line L7-L7.

[0069] Figure 27 yes Figure 4 The diagram shows a partial structural schematic of the bearing base of the rotating mechanism in another embodiment.

[0070] Figure 28 yes Figure 27 The diagram shows the assembly structure of the support base and the first adjusting component.

[0071] Figure 29 yes Figure 28 A three-dimensional sectional view cut along line L8-L8.

[0072] Explanation of reference numerals: 1000 - Foldable electronic device, 100 - Rotating mechanism, 10 - Support base, 101 - First outer surface, 102 - Second outer surface, 11 - Center beam, 11a - Middle section, 113 - First rotating groove, 1131 - First recess, 1132 - Second recess, 114 - Second rotating groove, 1141 - Third recess, 1142 - Fourth recess, 11b - First edge section, 111 - First receiving groove, 112 - First notch, 119 - Welding groove, 1111 - Fixing groove, 1112 - Guide hole, 1113 - Through hole, 1114 - Receiving hole, 1115 - Stepped surface, 11c - Second Edge segment, 12A-cover plate, 12-first cover plate, 121-second receiving groove, 122-second notch, 123-fifth groove, 124-sixth groove, 13-second cover plate, 14-mounting cavity, 141-first cavity wall, 142-second cavity wall, 14a-first mounting cavity, 14b-second mounting cavity, 15a-first connecting groove, 15b-second connecting groove, 15c-third connecting groove, 15d-fourth connecting groove, 20-swing arm assembly, 21-first swing arm, 211-first swinging part, 212-first rotating part, 213-first abutting part, 2131-first abutting surface, 22-second swing arm, 221 - Second swinging part, 222- Second rotating part, 223- Second supporting part, 2231- Second supporting surface, 23- First rotating shaft, 24- Second rotating shaft, 30A- Adjusting assembly, 31A- First adjusting assembly, 32A- Second adjusting assembly, 30- Adjusting member, 31- First adjusting member, 311- Plate, 3111- Support groove, 3112- Fixed post, 3113- Guide post, 3114- Threaded hole, 312- First mating part, 313- Second mating part, 314- First surface, 315- Second surface, 3121- First inclined surface, 3131- Second inclined surface, 32- Second adjusting member, 40- Spring Components, 40a-First elastic component, 40b-Second elastic component, 50-Drive component, 51-Threaded part, 52-Head, 50a-First drive component, 50b-Second drive component, 60-First mounting component, 61-First sliding cavity, 62-First sliding groove, 63-First boss, 64-Second boss, 70-Second mounting component, 71-Second sliding cavity, 72-Second sliding groove, 73-Third boss, 74-Fourth boss, 200-Main body, 210-First housing, 220-Second housing, 300-Display screen, 310-First display part, 320-Second display part, 330-Third display part, O1-Reference surface. Detailed Implementation

[0073] The embodiments of this application are described below with reference to the accompanying drawings.

[0074] Please refer to Figure 1 and Figure 2, Figure 1 This is a schematic diagram of the structure of the foldable electronic device 1000 provided in the embodiments of this application in the first state. Figure 2 This is a schematic diagram of the structure of the foldable electronic device 1000 provided in the embodiments of this application in the second state.

[0075] Figure 1 The foldable electronic device 1000 shown is in a flattened state. Figure 1 The foldable electronic device 1000 shown has a flattening angle of 180 degrees. Figure 2 The foldable electronic device 1000 shown is in a folded state. Figure 2 The foldable electronic device 1000 shown has a folding angle of 0 degrees. The foldable electronic device 1000 includes, but is not limited to, cellphones, notebook computers, tablet computers, personal digital assistants, wearable devices, or mobile devices. In this embodiment, a cellphone is used as an example. The foldable electronic device 1000 can be either outward-folding or inward-folding; in this embodiment, an outward-folding device is used as an example.

[0076] It should be noted that slight deviations are allowed in the angles illustrated in the embodiments of this application. For example, Figure 1 The flattening angle of the foldable electronic device 1000 shown is 180 degrees, and the deviation can be ±5 degrees. Figure 2 The folding angle of the foldable electronic device 1000 shown can be 0 degrees with a deviation of ±5 degrees. The angles illustrated later can be understood in the same way.

[0077] For ease of description, the width direction of the foldable electronic device 1000 is defined as the X-axis direction, the length direction of the foldable electronic device 1000 is defined as the Y-axis direction, and the thickness direction of the foldable electronic device 1000 is defined as the Z-axis direction. The X-axis, Y-axis, and Z-axis directions are all perpendicular to each other.

[0078] It should be noted that the directional terms such as "top," "bottom," "left," "right," "front," and "rear" used in the description of the foldable electronic device 1000 in this application are mainly based on the attached diagram of the foldable electronic device 1000. Figure 1The display orientation is described with the positive Z-axis direction as "top" or "up", the negative Z-axis direction as "bottom" or "down", the positive X-axis direction as "right", the negative X-axis direction as "left", the positive Y-axis direction as "back", and the negative Y-axis direction as "front". This does not constitute a limitation on the orientation of the foldable electronic device 1000 in actual application scenarios.

[0079] In this embodiment, the foldable electronic device 1000 includes a main body 200 and a display screen 300, with the display screen 300 mounted on the main body 200. The display screen 300 is a flexible screen, and includes a display surface and a mounting surface, which are disposed opposite to each other. The display surface is used to display text, images, and videos, etc. The display screen 300 includes a first display unit 310, a second display unit 320, and a third display unit 330. The third display unit 330 is located between the first display unit 310 and the second display unit 320.

[0080] refer to Figure 3 , Figure 3 yes Figure 1 The diagram shows the structure of the main body 200 of the foldable electronic device 1000. The main body 200 includes a rotating mechanism 100, a first housing 210, and a second housing 220. The rotating mechanism 100 is disposed between the first housing 210 and the second housing 220 and is connected to the first housing 210 and the second housing 220 to realize a rotatable connection between the first housing 210 and the second housing 220. The first housing 210 and the second housing 220 can rotate relative to each other through the rotating mechanism 100, so that the main body 200 can switch between a folded state and a flattened state.

[0081] The mounting surface of the display screen 300 is fixedly connected to the main body 200. Specifically, the first display unit 310 is mounted on the first housing 210, and the second display unit 320 is mounted on the second housing 220. The rotating mechanism 100 is positioned opposite to the third display unit 330 to allow the display screen 300 to bend. The width of the third display unit 330 along the X-axis can be greater than or equal to the width of the rotating mechanism 100.

[0082] The rotating mechanism 100 enables the main body 200 to switch between a folded state and a flattened state. Specifically, the rotating mechanism 100 also has a folded state and a flattened state. When the rotating mechanism 100 is in the folded state, the foldable electronic device 1000 is in the folded state. At this time, the first housing 210 and the second housing 220 are stacked along the Z-axis direction. The first display unit 310 is located on the side of the first housing 210 facing away from the second housing 220, that is, the first display unit 310 is located on the outside of the first housing 210; the second display unit 320 is located on the side of the second housing 220 facing away from the first housing 210, that is, the second display unit 320 is located on the outside of the second housing 220. When the rotating mechanism 100 is in the flattened state, the foldable electronic device 1000 is in the flattened state. At this time, the first housing 210, the rotating mechanism 100 and the second housing 220 are arranged along the X-axis direction, and the first display unit 310, the third display unit 330 and the second display unit 320 are arranged sequentially along the X-axis direction. The display screen 300 has a large display area.

[0083] In some embodiments, please refer to Figure 4 and Figure 5 , Figure 4 yes Figure 3 The diagram shows the structure of the rotating mechanism 100 of the main body 200. Figure 5 yes Figure 4 The diagram shows the split structure of the rotating mechanism 100.

[0084] Along the X-axis, the rotating mechanism 100 includes a support base 10, a swing arm assembly 20, an adjustment assembly 30A, a first mounting member 60, and a second mounting member 70. The swing arm assembly 20 includes a first swing arm 21 and a second swing arm 22. In this embodiment, there is one swing arm assembly 20; in other embodiments, there may be two, three, or more swing arm assemblies 20.

[0085] The adjustment assembly 30A includes an adjustment member 30, an elastic member 40, and a driving member 50. The adjustment member 30, elastic member 40, and driving member 50 are all mounted on the support base 10. The elastic member 40 is a spring; in other embodiments, it may be an elastic element such as rubber. The driving member 50 is a screw, including a threaded portion 51 and a head 52. Along the length of the driving member 50, the threaded portion 51 is connected to the head 52. The number of adjustment assemblies 30A can be one or more; for example, there may be two adjustment assemblies 30A. In other embodiments, there may be one, three, or more adjustment assemblies 30A.

[0086] The two adjustment components 30A are designated as a first adjustment component 31A and a second adjustment component 32A. The first adjustment component 31A includes a first adjustment member 31, a first elastic member 40a, and a first driving member 50a. The second adjustment component 32A includes a second adjustment member 32, a second elastic member 40b, and a second driving member 50b. In other words, there are two adjustment members 30: the first adjustment member 31 and the second adjustment member 32. There are also two elastic members 40: the first elastic member 40a and the second elastic member 40b. Finally, there are two driving members 50: the first driving member 50a and the second driving member 50b. The adjustment components 30A are used to adjust the flattening angle of the first swing arm 21 and the second swing arm 22.

[0087] In this embodiment, we continue to refer to Figure 3 , Figure 4 and Figure 5 The first mounting member 60 and the second mounting member 70 are wedge-shaped blocks. The first mounting member 60 is fixedly connected to the first housing 210, and the second mounting member 70 is fixedly connected to the second housing 220 via means including but not limited to threaded connections. A support base 10 is disposed between the first mounting member 60 and the second mounting member 70. Along the X-axis, one end of the first swing arm 21 is connected to the support base 10, and the other end of the first swing arm 21 is connected to the first mounting member 60. One end of the second swing arm 22 is connected to the support base 10, and the other end of the second swing arm 22 is connected to the second mounting member 70. It can be understood that the side of the first swing arm 21 away from the support base 10 is connected to the first housing 210 via the first mounting member 60, and the side of the second swing arm 22 away from the support base 10 is connected to the second housing 220 via the second mounting member 70. The first swing arm 21 and the second swing arm 22 rotate relative to the support base 10, thereby causing the first housing 210 and the second housing 220 to rotate relative to the support base 10.

[0088] Specifically, the first mounting component 60 is provided with a first sliding cavity 61 and two first sliding grooves 62. The first sliding cavity 61 is recessed on the upper surface of the first mounting component 60 and extends through the left and right sides of the first mounting component 60. The two cavity sides of the first sliding cavity 61 along the Y-axis direction are respectively provided with a first boss 63 and a second boss 64. The first boss 63 and the second boss 64 are both spaced apart from the bottom surface of the first sliding cavity 61. The gap between the first boss 63 and the bottom surface of the first sliding cavity 61 forms a first sliding groove 62, and the gap between the second boss 64 and the bottom surface of the first sliding cavity 61 forms another first sliding groove 62.

[0089] The second mounting member 70 is provided with a second sliding cavity 71 and two second sliding grooves 72. The second sliding cavity 71 is recessed on the upper surface of the second mounting member 70 and extends through the left and right sides of the second mounting member 70. The two sides of the second sliding cavity 71 along the Y-axis are respectively provided with a third boss 73 and a fourth boss 74. The third boss 73 and the fourth boss 74 are spaced apart from the bottom surface of the second sliding cavity 71. The gap between the third boss 73 and the bottom surface of the second sliding cavity 71 forms a second sliding groove 72, and the gap between the fourth boss 74 and the bottom surface of the second sliding cavity 71 forms another second sliding groove 72.

[0090] One side of the first swing arm 21 is rotatably connected to the bearing base 10, and the other side of the first swing arm 21 is slidably and rotatably connected to the first sliding cavity 61 and two first sliding grooves 62 of the first mounting member 60. One side of the second swing arm 22 is rotatably connected to the bearing base 10, and the other side of the second swing arm 22 is slidably and rotatably connected to the second sliding cavity 71 and two second sliding grooves 72 of the second mounting member 70. The first mounting member 60 and the second mounting member 70 are symmetrical about the bearing base 10, and the first swing arm 21 and the second swing arm 22 are symmetrical about the bearing base 10. It can be understood that along the X-axis direction, the bearing base 10 is disposed between the first swing arm 21 and the second swing arm 22, the first mounting member 60 is disposed on the side of the first swing arm 21 away from the bearing base 10, and the second mounting member 70 is disposed on the side of the second swing arm 22 away from the bearing base 10. One side of the first swing arm 21 is rotatably connected to the bearing base 10, and the side of the first swing arm 21 away from the bearing base 10 is slidably and rotatably connected to the first mounting member 60. One side of the second swing arm 22 is rotatably connected to the bearing base 10, and the side of the second swing arm 22 away from the bearing base 10 is slidably and rotatably connected to the second mounting member 70.

[0091] The first swing arm 21 and the second swing arm 22 are rotatable relative to the support base 10, thereby causing the first mounting member 60 and the second mounting member 70 to rotate relative to the support base 10, and in turn causing the first housing 210 and the second housing 220 to rotate relative to the support base 10. This allows the first mounting member 60 and the second mounting member 70 to switch between a flattened state and a folded state, and the first housing 210 and the second housing 220 to switch between these states. During the switching between the flattened and folded states, the side of the first swing arm 21 away from the support base 10 slides and rotates within the first sliding cavity 61 and the two first sliding grooves 62 of the first mounting member 60, and the side of the second swing arm 22 away from the support base 10 slides and rotates within the second sliding cavity 71 and the two second sliding grooves 72 of the second mounting member 70.

[0092] In this embodiment, by providing the first mounting member 60 and the second mounting member 70, it is convenient to connect the first housing 210 and the second housing 220 to the rotating mechanism 100, making assembly easier and thus improving assembly efficiency. In other embodiments, the first mounting member 60 and the second mounting member 70 can be omitted, the first housing 210 is directly connected to the first swing arm 21, and the second housing 220 is directly connected to the second swing arm 22.

[0093] In some embodiments, please refer to Figure 6 and Figure 7 , Figure 6 yes Figure 5 A schematic diagram of the split structure of the bearing base 10 of the rotating mechanism 100 shown. Figure 7 yes Figure 6 The diagram shows the structure of the central beam 11 of the supporting base 10.

[0094] The supporting base 10 includes a central beam 11 and a cover plate 12A. In this embodiment, there are two cover plates 12A, namely a first cover plate 12 and a second cover plate 13. Along the Z-axis direction, the first cover plate 12 and the second cover plate 13 are respectively stacked and fixed to the central beam 11 by means including but not limited to threaded connection, snap-fit ​​or welding. Along the Y-axis direction, the first cover plate 12 and the second cover plate 13 are spaced apart, and the first cover plate 12 and the second cover plate 13 are symmetrical about the center line of the central beam along the Y-axis direction.

[0095] The central beam 11 is elongated and extends along the Y-axis. The central beam 11 includes a middle section 11a, a first edge section 11b, and a second edge section 11c. Figure 7 The two dashed lines in the diagram are the dividing lines between the middle segment 11a, the first edge segment 11b, and the second edge segment 11c. Along the Y-axis, the first edge segment 11b, the middle segment 11a, and the second edge segment 11c are connected in sequence.

[0096] The first edge segment 11b is provided with a first receiving groove 111, two first notches 112, a fixing groove 1111, a guide hole 1112, a through hole 1113, and a receiving hole 1114. Figure 10 ).

[0097] A first receiving groove 111 is recessed on the upper surface of the first edge segment 11b, and the first receiving groove 111 penetrates both sides of the first edge segment 11b along the X-axis direction. Along the X-axis direction, two first notches 112 are provided on both sides of the first edge segment 11b, and the two first notches 112 penetrate the bottom surface of the first receiving groove 111 and the lower surface of the first edge segment 11b along the Z-axis direction. One of the first notches 112 penetrates the left side of the first edge segment 11b, and the other first notch 112 penetrates the right side of the first edge segment 11b. Along the X-axis direction, the two first notches 112 are symmetrical about the centerline of the central beam 11 along the X-axis direction.

[0098] Along the Z-axis, the fixing groove 1111 is recessed into the bottom surface of the first receiving groove 111, the through hole 1113 penetrates the bottom surface of the fixing groove 1111 and the lower surface of the first edge segment 11b, and the receiving hole 1114 ( Figure 10 The receiving hole 1114 is recessed on the lower surface of the first edge segment 11b. The receiving hole 1114 is coaxial with and connected to the through hole 1113. The diameter of the receiving hole 1114 is larger than the diameter of the through hole 1113, so that a stepped surface 1115 is formed between the receiving hole 1114 and the through hole 1113.

[0099] Guide holes 1112 are disposed around the fixing groove 1111. Along the Z-axis, the guide holes 1112 penetrate the bottom surface of the first receiving groove 111 and the lower surface of the first edge segment 11b. In other embodiments, the guide holes 1112 may only penetrate the bottom surface of the first receiving groove 111. The axial direction of the guide holes 1112 is parallel to the Z-axis. In this embodiment, there are four guide holes 1112, which are arranged in a rectangular shape to enclose a rectangular space. The fixing groove 1111 is located within the rectangular space, and the center of the fixing groove 1111 coincides with the center of the rectangular space. In other embodiments, the number of guide holes 1112 may be one, two, three, five, or more.

[0100] The second edge segment 11c is symmetrical to the first edge segment 11b about the middle segment 11a. The second edge segment 11c is also provided with a first receiving groove 111, two first notches 112, a fixing groove 1111, a guide hole 1112, a through hole 1113, and a receiving hole 1114. Figure 11 The first receiving groove 111 of the second edge segment 11c is symmetrical to the first receiving groove 111 of the first edge segment 11b with respect to the middle segment 11a. The two first notches 112 of the second edge segment 11c are symmetrical to the two first notches 112 of the first edge segment 11b with respect to the middle segment 11a. The fixing groove 1111 of the second edge segment 11c is symmetrical to the fixing groove 1111 of the first edge segment 11b with respect to the middle segment 11a. The guide hole 1112 of the second edge segment 11c is symmetrical to the guide hole 1112 of the first edge segment 11b with respect to the middle segment 11a. The through hole 1113 of the second edge segment 11c is symmetrical to the through hole 1113 of the first edge segment 11b with respect to the middle segment 11a. The receiving hole 1114 of the second edge segment 11c is symmetrical to the receiving hole 1114 of the first edge segment 11b with respect to the middle segment 11a.

[0101] It is understood that the surface of the middle beam 11 facing the cover plate 12A is recessed with two first receiving grooves 111, and both first receiving grooves 111 penetrate through both sides of the middle beam 11 along the X-axis direction (the width direction of the rotating mechanism 100).

[0102] The intermediate section 11a is provided with a first rotating groove 113 and a second rotating groove 114. The first rotating groove 113 is recessed on the upper surface of the intermediate section 11a and extends through the left side of the intermediate section 11a. The second rotating groove 114 is recessed on the upper surface of the intermediate section 11a and extends through the right side of the intermediate section 11a. The first rotating groove 113 and the second rotating groove 114 are symmetrical about the centerline of the middle beam 11 along the X-axis. The first rotating groove 113 has a first recess 1131 and a second recess 1132 recessed on its two sides in the Y-axis direction, respectively. The second rotating groove 114 has a third recess 1141 and a fourth recess 1142 recessed on its two sides in the Y-axis direction, respectively. The first groove 1131, the second groove 1132, the third groove 1141 and the fourth groove 1142 all penetrate the upper surface of the middle section 11a. The first groove 1131 and the third groove 1141 are symmetrical about the center line of the middle beam 11 along the X-axis direction, and the second groove 1132 and the fourth groove 1142 are symmetrical about the center line of the middle beam 11 along the X-axis direction.

[0103] In some embodiments, please refer to Figure 8 , Figure 8 yes Figure 6 The diagram shows the structure of the first cover plate 12 of the supporting base 10. The first cover plate 12 is provided with a second receiving groove 121, two second notches 122, a fifth groove 123, and a sixth groove 124. The second receiving groove 121 is recessed into the lower surface of the first cover plate 12 and penetrates both sides of the first cover plate 12 along the X-axis. Along the X-axis, two second notches 122 are provided on both sides of the first cover plate 12. Both second notches 122 penetrate the bottom surface of the second receiving groove 121 and the upper surface of the first cover plate 12 along the Z-axis, with one second notch 122 penetrating the left side of the first cover plate 12 and the other second notch 122 penetrating the right side of the first cover plate 12. Along the X-axis, the two second notches 122 are symmetrical about the centerline of the first cover plate 12 along the X-axis.

[0104] Both the fifth groove 123 and the sixth groove 124 are recessed on the lower surface of the first cover plate 12, and both extend through the rear side of the first cover plate 12. Along the X-axis, the fifth groove 123 and the sixth groove 124 are spaced apart. Along the Y-axis, both the fifth groove 123 and the sixth groove 124 are spaced apart from the second receiving groove 121.

[0105] In some embodiments, please refer to Figure 6 and Figure 9 , Figure 9 yes Figure 6The diagram shows the structure of the second cover plate 13 of the supporting base 10. The second cover plate 13 and the first cover plate 12 are symmetrical about the center line of the middle beam 11 along the Y-axis. The second cover plate 13 is also provided with a second receiving groove 121, two second notches 122, a fifth groove 123, and a sixth groove 124. The second receiving groove 121 of the second cover plate 13 is symmetrical to the second receiving groove 121 of the first cover plate 12 about the center line of the middle beam 11 along the Y-axis. The two second notches 122 of the second cover plate 13 are symmetrical to the two second notches 122 of the first cover plate 12 about the center line of the middle beam 11 along the Y-axis. The fifth groove 123 of the second cover plate 13 is symmetrical to the fifth groove 123 of the first cover plate 12 about the center line of the middle beam 11 along the Y-axis. The sixth groove 124 of the second cover plate 13 is symmetrical to the sixth groove 124 of the first cover plate 12 about the center line of the middle beam 11 along the Y-axis.

[0106] It is understood that the surfaces of both cover plates 12A facing the middle beam 11 are recessed with second receiving grooves 121, and the second receiving grooves 121 penetrate both sides of the cover plates 12A along the X-axis direction (the width direction of the rotating mechanism 100).

[0107] refer to Figure 5 , Figure 10 and Figure 11 , Figure 10 yes Figure 5 The cross-sectional view of the bearing base 10 of the rotating mechanism 100 shown is taken along line L1-L1. Figure 11 yes Figure 5 The cross-sectional view of the bearing base 10 of the rotating mechanism 100 shown is taken along line L2-L2.

[0108] Along the Z-axis, when the first cover plate 12 and the second cover plate 13 are stacked and fixed with the middle beam 11, the second receiving groove 121 of the first cover plate 12 is opposite to and communicates with the first receiving groove 111 of the first edge segment 11b to form a first mounting cavity 14a; the fifth groove 123 of the first cover plate 12 is opposite to and communicates with the first groove 1131 to form a first connecting groove 15a; and the sixth groove 124 of the first cover plate 12 is opposite to and communicates with the third groove 1141 to form a second connecting groove 15b. The two second notches 122 of the first cover plate 12 are respectively opposite to the two first notches 112 of the first edge segment 11b.

[0109] The second receiving groove 121 of the second cover plate 13 is opposite to and communicates with the first receiving groove 111 of the second edge segment 11c to form a second mounting cavity 14b. The fifth groove 123 of the second cover plate 13 is opposite to and communicates with the second groove 1132 to form a third connecting groove 15c. The sixth groove 124 of the second cover plate 13 is opposite to and communicates with the fourth groove 1142 to form a fourth connecting groove 15d. The two second notches 122 of the second cover plate 13 are respectively opposite to the two first notches 112 of the second edge segment 11c.

[0110] It is understood that in this embodiment, the support base 10 is provided with a mounting cavity 14. Along the Z-axis direction, the first receiving groove 111 and the second receiving groove 121 are opposite to each other and connected to form the mounting cavity 14. The mounting cavity 14 is used to install the adjusting member 30 and the elastic member 40. The support base 10 includes a first outer surface 101 and a second outer surface 102, which are opposite to each other along the Z-axis direction. The mounting cavity 14 is disposed between the first outer surface 101 and the second outer surface 102, and the mounting cavity 14 penetrates both sides of the support base 10 along the X-axis direction. The mounting cavity 14 includes a first cavity wall surface 141 and a second cavity wall surface 142, which are spaced apart and opposite to each other along the Z-axis direction. The first outer surface 101 is opposite to the first cavity wall surface 141, and the second outer surface 102 is opposite to the second cavity wall surface 142. In this embodiment, there are two mounting cavities 14, namely the first mounting cavity 14a and the second mounting cavity 14b. In other embodiments, the number of mounting cavities 14 may be one, three, or more.

[0111] In this embodiment, the first cavity wall 141 of the first mounting cavity 14a is the bottom surface of the first receiving groove 111 of the first edge segment 11b, the first cavity wall 141 of the second mounting cavity 14b is the bottom surface of the first receiving groove 111 of the second edge segment 11c, and the first outer surface 101 is the lower surface of the middle beam 11. That is, along the Z-axis direction, the first outer surface 101 is the surface of the middle beam 11 facing away from the cover plate 12A, and the first cavity wall 141 of the two mounting cavities 14 are the bottom surfaces of the two first receiving grooves 111, respectively.

[0112] In this embodiment, the load-bearing base 10 is designed as a split structure consisting of a central beam 11 and a cover plate 12A, which facilitates assembly and improves assembly efficiency. In other embodiments, the load-bearing base 10 can be designed as a single piece.

[0113] In some embodiments, please refer to Figure 12 , Figure 12 yes Figure 4The diagram shows the structure of the first adjusting member 31 of the rotating mechanism 100. The first adjusting member 31 includes a first surface 314, a second surface 315, a first inclined surface 3121, and a second inclined surface 3131. Along the Z-axis, the first surface 314 and the second surface 315 are opposite to each other, and both are perpendicular to the Z-axis. Along the X-axis, the first inclined surface 3121 and the second inclined surface 3131 are opposite to each other. The inclination directions of the first inclined surface 3121 and the second inclined surface 3131 are opposite. The first inclined surface 3121 is inclined relative to the reference surface O1, which is perpendicular to the Z-axis, and faces upward to the left. The second inclined surface 3131 is inclined relative to the reference surface O1 and faces upward to the right.

[0114] Specifically, the first adjusting member 31 includes a plate 311, a first mating part 312, and a second mating part 313. Along the X-axis, the first mating part 312, the plate 311, and the second mating part 313 are connected sequentially. A first surface 314 and a second surface 315 are disposed on opposite sides of the plate 311, with the first surface 314 being the lower surface of the plate 311 and the second surface 315 being the upper surface of the plate 311. Along the Z-axis, the first surface 314 and the second surface 315 are opposite to each other, and both are perpendicular to the Z-axis.

[0115] The first mating part 312 protrudes from the first surface 314 and the left side of the plate 311, and the second mating part 313 protrudes from the first surface 314 and the right side of the plate 311. A first inclined surface 3121 is disposed on the side of the first mating part 312 opposite to the plate 311, and a second inclined surface 3131 is disposed on the side of the second mating part 313 opposite to the plate 311. The angle between the first inclined surface 3121 and the reference surface O1 is acute, and the angle between the second inclined surface 3131 and the reference surface O1 is also acute.

[0116] The plate 311 also includes a retaining groove 3111, a fixing post 3112, a guide post 3113, and a threaded hole 3114. The retaining groove 3111 is recessed into the first surface 314 of the plate 311, and the fixing post 3112 protrudes from the bottom surface of the retaining groove 3111 and extends out of the retaining groove 3111. Along the X-axis direction, the fixing post 3112 is located between the first mating part 312 and the second mating part 313. In this embodiment, the threaded hole 3114 penetrates the surface of the fixing post 3112 facing the negative Z-axis direction and the second surface 315 of the plate 311. In other embodiments, the threaded hole 3114 may only penetrate the surface of the fixing post 3112 facing the negative Z-axis direction. The guide post 3113 protrudes from the first surface 314 of the plate 311 and is located around the retaining groove 3111. The axial direction of the guide post 3113 is parallel to the Z-axis direction. In this embodiment, there are four guide posts 3113 arranged in a rectangular pattern to form a rectangular space. The abutment groove 3111 is located within the rectangular space, and the center of the abutment groove 3111 coincides with the center of the rectangular space. In other embodiments, the number of guide posts 3113 is one, two, three, five, or more.

[0117] In some embodiments, please refer to Figure 4 and Figure 13 , Figure 13 yes Figure 4 The diagram shows the structure of the second adjusting member 32 of the rotating mechanism 100. After the second adjusting member 32 and the first adjusting member 31 are installed on the bearing base 10, the second adjusting member 32 and the first adjusting member 31 are symmetrical about the center line of the bearing base 10 along the Y-axis. The second adjusting member 32 also includes a plate 311, a first mating part 312 and a second mating part 313, which are connected sequentially along the X-axis. The plate 311 of the second adjusting member 32 is also provided with a retaining groove 3111, a fixing post 3112, a guide post 3113 and a threaded hole 3114. The first mating part 312 of the second adjusting member 32 is also provided with a first inclined surface 3121, and the second mating part 313 of the second adjusting member 32 is also provided with a second inclined surface 3131.

[0118] The plate 311 of the second adjusting member 32 is symmetrical to the plate 311 of the first adjusting member 31 about the center line of the bearing base 10 along the Y-axis. The first mating part 312 of the second adjusting member 32 is symmetrical to the first mating part 312 of the first adjusting member 31 about the center line of the bearing base 10 along the Y-axis. The second mating part 313 of the second adjusting member 32 is symmetrical to the second mating part 313 of the first adjusting member 31 about the center line of the bearing base 10 along the Y-axis.

[0119] It is understood that both adjusting parts 30 are provided with a first mating part 312 and a second mating part 313. The first mating part 312 is provided with a first inclined surface 3121, and the second mating part 313 is provided with a second inclined surface 3131. Both the first inclined surface 3121 and the second inclined surface 3131 are inclined relative to the reference surface O1, and the reference surface O1 is perpendicular to the Z-axis direction (the thickness direction of the rotating mechanism 100); the inclination directions of the first inclined surface 3121 and the second inclined surface 3131 are opposite.

[0120] In some embodiments, please refer to Figure 14 , Figure 14 yes Figure 4 The diagram shows the structure of the swing arm assembly 20 of the rotating mechanism 100. The swing arm assembly 20 includes a first swing arm 21 and a second swing arm 22, both of which are plate-shaped. The first swing arm 21 has a first abutting surface 2131, which is inclined relative to the reference surface O1 and faces downward to the right. Specifically, the first swing arm 21 has a first swing portion 211, a first rotating portion 212, and a first abutting portion 213. The first rotating portion 212 and the first swing portion 211 are fixedly connected along the X-axis. In this embodiment, there are two first rotating portions 212, which are spaced apart along the Y-axis. In other embodiments, the number of first rotating portions 212 can be one, three, or more.

[0121] Along the Y-axis, the first abutting part 213 and the first swinging part 211 are fixedly connected. In this embodiment, there are two first abutting parts 213, which are fixedly connected to both sides of the first swinging part 211. In other embodiments, the number of first abutting parts 213 can be one, three, or more. There are also two first abutting surfaces 2131, which are respectively disposed on the side of the two first abutting parts 213 facing the first rotating part 212. The first abutting surfaces 2131 are inclined relative to the reference surface O1 and face downwards to the right.

[0122] The second swing arm 22 is provided with a second abutment surface 2231, which is inclined relative to the reference surface O1 and faces downward to the left. Specifically, the second swing arm 22 is provided with a second swing portion 221, a second rotating portion 222, and a second abutment portion 223. The second rotating portion 222 is fixedly connected to the second swing portion 221 along the X-axis. In this embodiment, there are two second rotating portions 222, which are spaced apart along the Y-axis. In other embodiments, the number of second rotating portions 222 can be one, three, or more.

[0123] Along the Y-axis, the second abutment 223 is fixedly connected to the second swinging part 221. In this embodiment, there are two second abutment parts 223, which are fixedly connected to both sides of the second swinging part 221. In other embodiments, the number of second abutment parts 223 can be one, three, or more. There are also two second abutment surfaces 2231, which are respectively disposed on the side of the two second abutment parts 223 facing the second rotating part 222. The second abutment surfaces 2231 are inclined relative to the reference surface O1 and face downwards to the left.

[0124] It is understood that the first supporting part 213 is provided with a first supporting surface 2131, and the second supporting part 223 is provided with a second supporting surface 2231. Both the first supporting surface 2131 and the second supporting surface 2231 are inclined relative to the reference surface O1, and the inclination directions of the first supporting surface 2131 and the second supporting surface 2231 are opposite.

[0125] In some embodiments, please refer to Figure 15 , Figure 16 and Figure 17 , Figure 15 yes Figure 3 An enlarged view of point A on the main body 200 shown. Figure 16 yes Figure 15 The diagram shows a cross-sectional view of the main body 200 when it is in a flattened state, cut along line L3-L3. Figure 17 yes Figure 15 The diagram shows a cross-sectional view of the main body 200 when it is in a flattened state, cut along line L4-L4.

[0126] The swing arm assembly 20 also includes a first rotating shaft 23 and a second rotating shaft 24. The first rotating shaft 23 is disposed within a first rotating groove 113, and both ends of the first rotating shaft 23 are rotatably connected to a first connecting groove 15a along its length. Figure 5 ) and the third connecting slot 15c ( Figure 5 The two first rotating parts 212 of the first swing arm 21 are fixedly connected to the first rotating shaft 23. In other embodiments, the two ends of the first rotating shaft 23 along its length are fixedly connected to the first connecting groove 15a. Figure 5 ) and the third connecting slot 15c ( Figure 5 The two first rotating parts 212 of the first swing arm 21 are rotatably connected to the first rotating shaft 23. The two first rotating parts 212 can rotate around the axial direction of the first rotating shaft 23. The first swinging part 211 of the first swing arm 21 is slidably and rotatably connected to the first sliding cavity 61 of the first mounting member 60, and the two first abutting parts 213 of the first swing arm 21 are respectively slidably and rotatably connected to the two first sliding grooves 62 of the first mounting member 60.

[0127] The second rotating shaft 24 is disposed within the second rotating groove 114, and both ends of the second rotating shaft 24 are rotatably connected to the second connecting groove 15b along its length. Figure 5 ) and fourth connecting slot 15d ( Figure 5 The two second rotating parts 222 of the second swing arm 22 are fixedly connected to the second rotating shaft 24. In other embodiments, the two ends of the second rotating shaft 24 along its length are fixedly connected to the second connecting groove 15b. Figure 5 ) and fourth connecting slot 15d ( Figure 5 The two second rotating parts 222 of the second swing arm 22 are rotatably connected to the second rotating shaft 24. The two second rotating parts 222 can rotate around the axial direction of the second rotating shaft 24. The second swinging part 221 of the second swing arm 22 is slidably and rotatably connected to the second sliding cavity 71 of the second mounting member 70, and the two second abutting parts 223 of the second swing arm 22 are respectively slidably and rotatably connected to the two second sliding grooves 72 of the second mounting member 70.

[0128] When the first swing arm 21 rotates relative to the support base 10, the two first abutment parts 213 slide and rotate within the two first sliding grooves 62, and the first swing part 211 slides and rotates within the first sliding cavity 61. When the second swing arm 22 rotates relative to the support base 10, the two second abutment parts 223 slide and rotate within the two second sliding grooves 72, and the second swing part 221 slides and rotates within the second sliding cavity 71.

[0129] During rotation, the two first notches 112 of the first edge segment 11b, the two first notches 112 of the second edge segment 11c, the two second notches 122 of the first cover plate 12 and the two second notches 122 of the second cover plate 13 can avoid the first swing arm 21 and the second swing arm 22, preventing the first swing arm 21 and the second swing arm 22 from interfering with the bearing base 10. This allows the first swing arm 21 and the second swing arm 22 to get closer to the bearing base 10, thereby reducing the size of the rotation mechanism 100 along the X-axis, making the structure compact and beneficial for the miniaturization design of the foldable electronic device 1000.

[0130] When the first swing arm 21 and the second swing arm 22 rotate to their maximum angle, that is, when the rotating mechanism 100 is in a flattened state, the included angle between the first swing arm 21 and the second swing arm 22 is 180 degrees, the included angle between the first mounting member 60 and the second mounting member 70 is 180 degrees, and consequently the included angle between the first housing 210 and the second housing 220 is 180 degrees.

[0131] However, due to the existence of errors, specifically when the rotating mechanism 100 is in the flattened state, the included angle between the first swing arm 21 and the second swing arm 22 may not be equal to 180 degrees. The included angle may be greater than 180 degrees, for example, 195 degrees. Alternatively, the included angle may be less than 180 degrees, for example, 165 degrees. This situation can cause the display screen 300 to bend, affecting the display effect and feel, and consequently impacting the user experience.

[0132] In this embodiment, to address the issue of excessive error between the included angle between the first swing arm 21 and the second swing arm 22 and 180 degrees, each swing arm assembly 20 is provided with at least one adjustment component 30A. In this embodiment, the swing arm assembly 20 is provided with two adjustment components 30A, namely a first adjustment component 31A and a second adjustment component 32A. The first adjustment component 31A and the second adjustment component 32A can adjust the included angle between the first swing arm 21 and the second swing arm 22, making the included angle between the first swing arm 21 and the second swing arm 22 180 degrees, thereby making the included angle between the first housing 210 and the second housing 220 180 degrees.

[0133] For details, please refer to Figure 16 , Figure 17 and Figure 18 , Figure 18 yes Figure 4 The diagram shows a cross-sectional view of the rotating mechanism 100 along line L5-L5 (first mounting member 60 and second mounting member 70 are omitted). The first adjusting member 31 of the first adjusting assembly 31A and the second adjusting member 32 of the second adjusting assembly 32A are disposed on the bearing base 10, spaced apart along the Y-axis. The first adjusting member 31 and the second adjusting member 32 are symmetrical about the centerline of the bearing base 10 along the Y-axis. For example, the first adjusting member 31 is disposed between the first cover plate 12 and the middle beam 11, located within the first mounting cavity 14a. The first inclined surface 3121 of the first adjusting member 31 faces the first abutting surface 2131 on the front side of the first swing arm 21, and the second inclined surface 3131 of the first adjusting member 31 faces the second abutting surface 2231 on the front side of the second swing arm 22. The first adjusting member 31 is threadedly connected to the middle beam 11 via the first driving member 50a. A first elastic member 40a is provided between the first adjusting member 31 and the middle beam 11. Along the Z-axis direction, the two ends of the first elastic member 40a abut against the first adjusting member 31 and the middle beam 11, respectively. The first elastic member 40a is in a compressed state.

[0134] Specifically, along the Z-axis, the guide post 3113 of the first adjusting member 31 extends into the guide hole 1112 of the first edge segment 11b. The bottom surface of the abutment groove 3111 of the first adjusting member 31 is opposite to the bottom surface of the fixing groove 1111 of the first edge segment 11b. The threaded hole 3114 of the first adjusting member 31 is coaxial with and connected to the receiving hole 1114 and the through hole 1113 of the first edge segment 11b. The threaded portion 51 of the first driving member 50a passes through the receiving hole 1114 and the through hole 1113 of the first edge segment 11b in sequence and is threadedly connected to the threaded hole 3114 of the first adjusting member 31. The head 52 of the first driving member 50a is received in the receiving hole 1114 of the first edge segment 11b and abuts against the stepped surface 1115 of the first edge segment 11b to prevent the head 52 of the first driving member 50a from protruding from the lower surface of the middle beam 11 and affecting the installation of the display screen 300. It can be understood that, along the Z-axis direction (the thickness direction of the rotating mechanism 100), the threaded portion 51 of the first driving member 50a passes through the first outer surface 101 and the first cavity wall 141 of the first mounting cavity 14a in sequence and enters the first mounting cavity 14a, and is threadedly connected to the first adjusting member 31. The head 52 of the first driving member 50a abuts against the side of the bearing base 10 away from the first cavity wall 141 of the first mounting cavity 14a.

[0135] The first elastic member 40a is disposed between the first adjusting member 31 and the middle beam 11. Specifically, along the Z-axis direction, one end of the first elastic member 40a is disposed in the fixing groove 1111 of the first edge segment 11b and abuts against the bottom surface of the fixing groove 1111 of the first edge segment 11b. The other end of the first elastic member 40a extends into the abutting groove 3111 of the first adjusting member 31 and is sleeved on the fixing post 3112, and abuts against the bottom surface of the abutting groove 3111 of the first adjusting member 31.

[0136] In other embodiments, the fixing post 3112 of the first adjusting member 31 may be omitted, one end of the first elastic member 40a extends into the abutment groove 3111 of the first adjusting member 31 and abuts against the bottom surface of the abutment groove 3111, and the other end of the first elastic member 40a is disposed in the fixing groove 1111 of the first edge segment 11b and abuts against the bottom surface of the fixing groove 1111 of the first edge segment 11b.

[0137] In other embodiments, the abutment groove 3111 and fixing post 3112 of the first adjusting member 31 can be omitted. One end of the first elastic member 40a abuts against the first surface 314 of the first adjusting member 31, and the other end of the first elastic member 40a is disposed in the fixing groove 1111 of the first edge segment 11b and abuts against the bottom surface of the fixing groove 1111 of the first edge segment 11b.

[0138] In other embodiments, the fixing groove 1111 of the first edge segment 11b can be omitted, one end of the first elastic member 40a abuts against the first cavity wall 141 of the first mounting cavity 14a, and the other end of the first elastic member 40a extends into the abutment groove 3111 of the first adjusting member 31 and is sleeved on the fixing post 3112, and abuts against the bottom surface of the abutment groove 3111 of the first adjusting member 31.

[0139] In other embodiments, the fixing groove 1111 of the first edge segment 11b and the fixing post 3112 of the first adjusting member 31 can be omitted. One end of the first elastic member 40a abuts against the first cavity wall 141 of the first mounting cavity 14a, and the other end of the first elastic member 40a extends into the abutting groove 3111 of the first adjusting member 31 and abuts against the bottom surface of the abutting groove 3111 of the first adjusting member 31.

[0140] In other embodiments, the fixing groove 1111 of the first edge segment 11b, the abutment groove 3111 of the first adjustment member 31 and the fixing post 3112 can be omitted. Along the Z-axis direction, one end of the first elastic member 40a abuts against the first surface 314 of the first adjustment member 31, and the other end of the first elastic member 40a abuts against the first cavity wall 141 of the first mounting cavity 14a.

[0141] Similarly, the second adjusting member 32 is disposed between the second cover plate 13 and the middle beam 11, and is disposed within the second mounting cavity 14b. The first inclined surface 3121 of the second adjusting member 32 faces the first abutting surface 2131 on the rear side of the first swing arm 21, and the second inclined surface 3131 of the second adjusting member 32 faces the second abutting surface 2231 on the rear side of the second swing arm 22. The second adjusting member 32 is threadedly connected to the middle beam 11 via the second driving member 50b. A second elastic member 40b is disposed between the second adjusting member 32 and the middle beam 11. Along the Z-axis direction, the two ends of the second elastic member 40b abut against the second adjusting member 32 and the middle beam 11, respectively. The second elastic member 40b is in a compressed state.

[0142] Specifically, along the Z-axis direction, the guide post 3113 of the second adjusting member 32 extends into the guide hole 1112 of the second edge segment 11c (not shown in the figure, refer to the matching relationship between the guide post 3113 of the first adjusting member 31 and the guide hole 1112 of the first edge segment 11b). The bottom surface of the groove of the abutment groove 3111 of the second adjusting member 32 is opposite to the bottom surface of the groove of the fixing groove 1111 of the second edge segment 11c. Along the Z-axis direction, the threaded hole 3114 of the second adjusting member 32 is coaxial and connected with the receiving hole 1114 and the through hole 1113 of the second edge segment 11c. The threaded portion 51 of the second driving member 50b passes sequentially through the receiving hole 1114 and the through hole 1113 of the second edge segment 11c, and is threadedly connected to the threaded hole 3114 of the second adjusting member 32. The head 52 of the second driving member 50b is received in the receiving hole 1114 of the second edge segment 11c and abuts against the stepped surface 1115 of the second edge segment 11c, preventing the head 52 of the second driving member 50b from protruding from the lower surface of the central beam 11 and affecting the installation of the display screen 300. It can be understood that along the Z-axis direction (the thickness direction of the rotating mechanism 100), the threaded portion 51 of the second driving member 50b passes sequentially through the first outer surface 101 and the first cavity wall 141 of the second mounting cavity 14b and enters the second mounting cavity 14b, and is threadedly connected to the second adjusting member 32. The head 52 of the second driving member 50b abuts against the side of the bearing base 10 opposite to the first cavity wall 141 of the second mounting cavity 14b.

[0143] The second elastic member 40b is disposed between the second adjusting member 32 and the middle beam 11. Specifically, along the Z-axis direction, one end of the second elastic member 40b is disposed in the fixing groove 1111 of the second edge segment 11c and abuts against the bottom surface of the fixing groove 1111 of the second edge segment 11c. The other end of the second elastic member 40b extends into the abutting groove 3111 of the second adjusting member 32 and is sleeved on the fixing post 3112, and abuts against the bottom surface of the abutting groove 3111 of the second adjusting member 32.

[0144] In other embodiments, the fixing post 3112 of the second adjusting member 32 may be omitted, one end of the second elastic member 40b extends into the abutment groove 3111 of the second adjusting member 32 and abuts against the bottom surface of the abutment groove 3111, and the other end of the second elastic member 40b is disposed in the fixing groove 1111 of the second edge segment 11c and abuts against the bottom surface of the fixing groove 1111 of the second edge segment 11c.

[0145] In other embodiments, the abutment groove 3111 and fixing post 3112 of the second adjusting member 32 may be omitted. One end of the second elastic member 40b abuts against the first surface 314 of the second adjusting member 32, and the other end of the second elastic member 40b is disposed in the fixing groove 1111 of the second edge segment 11c and abuts against the bottom surface of the fixing groove 1111 of the second edge segment 11c.

[0146] In other embodiments, the fixing groove 1111 of the second edge segment 11c can be omitted, one end of the second elastic member 40b abuts against the first cavity wall 141 of the second mounting cavity 14b, and the other end of the second elastic member 40b extends into the abutment groove 3111 of the second adjusting member 32 and is sleeved on the fixing post 3112, and abuts against the bottom surface of the abutment groove 3111 of the second adjusting member 32.

[0147] In other embodiments, the fixing groove 1111 of the second edge segment 11c and the fixing post 3112 of the second adjustment member 32 may be omitted. One end of the second elastic member 40b abuts against the first cavity wall 141 of the second mounting cavity 14b, and the other end of the second elastic member 40b extends into the abutment groove 3111 of the second adjustment member 32 and abuts against the bottom surface of the abutment groove 3111 of the second adjustment member 32.

[0148] In other embodiments, the fixing groove 1111 of the second edge segment 11c, the abutment groove 3111 of the second adjustment member 32 and the fixing post 3112 can be omitted. Along the Z-axis direction, one end of the second elastic member 40b abuts against the first surface 314 of the second adjustment member 32, and the other end of the second elastic member 40b abuts against the first cavity wall 141 of the second mounting cavity 14b.

[0149] It is understood that the adjusting member 30 and the elastic member 40 are installed in the mounting cavity 14 along the Z-axis direction (the thickness direction of the rotating mechanism 100). The elastic member 40 is located between the adjusting member 30 and the cavity wall of the mounting cavity 14, with one end of the elastic member 40 abutting against the cavity wall of the mounting cavity 14 and the other end of the elastic member 40 abutting against the adjusting member 30. The driving member 50 is installed on the bearing base 10, with one end of the driving member 50 extending into the mounting cavity 14 and connected to the adjusting member 30. The driving member 50 and the elastic member 40 are used to drive the adjusting member 30 to move along the Z-axis direction.

[0150] Specifically, in this embodiment, along the Z-axis direction, the threaded portion 51 of the driving member 50 passes through the first outer surface 101 and the first cavity wall 141 in sequence and enters the mounting cavity 14, and is threadedly connected to the adjusting member 30. The head 52 of the driving member 50 abuts against the side of the bearing base 10 away from the first cavity wall 141. Along the Z-axis direction, the elastic member 40 is located between the first cavity wall 141 and the adjusting member 30. In the cavity wall of the mounting cavity 14, a fixing groove 1111 is recessed on the cavity wall facing the elastic member 40, that is, the first cavity wall 141 is recessed with a fixing groove 1111, and the adjusting member 30 is recessed with a support groove 3111 on the side facing the elastic member 40. A fixing post 3112 is provided on the bottom surface of the support groove 3111. One end of the elastic member 40 extends into the fixing groove 1111 and abuts against the bottom surface of the fixing groove 1111. The other end of the elastic member 40 extends into the abutting groove 3111 and is fitted onto the fixing post 3112, abutting against the bottom surface of the abutting groove 3111.

[0151] In this embodiment, by providing a fixing groove 1111, a retaining groove 3111, and a fixing post 3112, the side of the fixing groove 1111, the side of the retaining groove 3111, and the fixing post 3112 can limit the elastic member 40, preventing the elastic member 40 from falling out of the mounting cavity 14. In addition, during the compression and rebound process of the elastic member 40, the fixing post 3112 can play a guiding role.

[0152] In other embodiments, the fixing post 3112 may be omitted, one end of the elastic member 40 extends into the fixing groove 1111 and abuts against the bottom surface of the fixing groove 1111, and the other end of the elastic member 40 extends into the abutting groove 3111 and abuts against the bottom surface of the abutting groove 3111.

[0153] In other embodiments, the fixing groove 1111 may be omitted, and one end of the elastic member 40 abuts against the first cavity wall 141. The other end of the elastic member 40 extends into the abutment groove 3111 and is fitted onto the fixing post 3112, abutting against the bottom surface of the abutment groove 3111.

[0154] In other embodiments, the abutment groove 3111 and the fixing post 3112 may be omitted. One end of the elastic member 40 extends into the fixing groove 1111 and abuts against the bottom surface of the fixing groove 1111, while the other end of the elastic member 40 abuts against the first surface 314 of the adjusting member 30.

[0155] In other embodiments, the fixing groove 1111 and the fixing post 3112 may be omitted. One end of the elastic member 40 abuts against the first cavity wall 141, and the other end of the elastic member 40 extends into the abutting groove 3111 and abuts against the bottom surface of the abutting groove 3111.

[0156] In other embodiments, the fixing groove 1111, the abutment groove 3111 and the fixing post 3112 can be omitted, one end of the elastic member 40 abuts against the first surface 314 of the adjusting member 30, and the other end of the elastic member 40 abuts against the first cavity wall 141.

[0157] In this embodiment, the first adjusting member 31 and the second adjusting member 32 are used for stopping. When the first swing arm 21 and the second swing arm 22 rotate to their maximum angle, that is, when the first swing arm 21 and the second swing arm 22 are in a flattened state relative to the bearing base 10, the two first abutting surfaces 2131 of the first swing arm 21 abut against the first inclined surface 3121 of the first adjusting member 31 and the first inclined surface 3121 of the second adjusting member 32, respectively. The two second abutting surfaces 2231 of the second swing arm 22 abut against the second inclined surface 3131 of the first adjusting member 31 and the second inclined surface 3131 of the second adjusting member 32, respectively. That is, along the Z-axis direction, the first abutting part 213 abuts against the first mating part 312, and the second abutting part 223 abuts against the second mating part 313, so that the first swing arm 21 and the second swing arm 22 are in a flattened state relative to the bearing base 10.

[0158] At this point, the first swing arm 21 and the second swing arm 22 cannot continue to rotate. The flattening angle of the foldable electronic device 1000 may be 180 degrees, or it may be greater than 180 degrees or less than 180 degrees. If the operator measures that the flattening angle of the foldable electronic device 1000 is greater than or less than 180 degrees, the flattening angle of the foldable electronic device 1000 can be adjusted to 180 degrees by adjusting the height of the first adjusting member 31 and the second adjusting member 32 in the Z-axis direction.

[0159] Specifically, the first adjusting member 31 can move along the Z-axis direction under the synergistic action of the first elastic member 40a and the first driving member 50a, and the second adjusting member 32 can move along the Z-axis direction under the synergistic action of the second elastic member 40b and the second driving member 50b. Thus, the first adjusting member 31 and the second adjusting member 32 can adjust the angle between the first swing arm 21 and the second swing arm 22.

[0160] When assembling the foldable electronic device 1000, the display screen 300 is installed only after the main body 200 is assembled. Therefore, the operator can measure the angle between the first housing 210 and the second housing 220 after the main body 200 is assembled. If the measured angle is greater than 180 degrees, the operator can adjust the drive component 50 so that the drive component 50 and the elastic component 40 drive the adjustment component 30 to move along the first direction. The first inclined surface 3121 pushes against the first abutment surface 2131, and the second inclined surface 3131 pushes against the second abutment surface 2231, so that the first swing arm 21 rotates along the first rotation direction and the second swing arm 22 rotates along the second rotation direction, thereby reducing the flattening angle of the first swing arm 21 and the second swing arm 22.

[0161] The first direction is oriented towards the positive Z-axis, and one of the first rotation direction and the second rotation direction is clockwise, while the other is counterclockwise. In this embodiment, the first rotation direction is clockwise, and the second rotation direction is counterclockwise.

[0162] Specifically, the workers used a screwdriver to turn the two drive components 50 degrees clockwise. Figure 16 Rotate in the direction shown, that is, rotate the first drive member 50a and the second drive member 50b clockwise ( Figure 16 Rotate in the direction shown to loosen the first drive member 50a and the second drive member 50b. The first adjustment member 31 moves away from the middle beam 11 under the elastic force of the first elastic member 40a, and the second adjustment member 32 moves away from the middle beam 11 under the elastic force of the second elastic member 40b. That is, the first adjustment member 31 and the second adjustment member 32 move in the positive direction of the Z-axis.

[0163] Please refer to the following: Figure 19 , Figure 19This is a force analysis diagram when the angle between the first swing arm 21 and the second swing arm 22 is greater than 180 degrees. During the movement of the first adjusting member 31 and the second adjusting member 32 towards the positive Z-axis, the first inclined surface 3121 of the first adjusting member 31 and the first inclined surface 3121 of the second adjusting member 32 continuously push against the two first abutting surfaces 2131 of the first swing arm 21. The two first abutting surfaces 2131 are subjected to a first abutting force F1, the direction of which is perpendicular to the first inclined surface 3121 of the first adjusting member 31 and the first inclined surface 3121 of the second adjusting member 32. The component of F1 in the X-axis direction is F11, which is directed towards the negative X-axis. The component of F1 in the Z-axis direction is F12, which is directed towards the positive Z-axis. Under the action of F11, the first swing arm 21 tends to move towards the negative X-axis, i.e., it tends to move to the left. Simultaneously, under the action of F12, the first swing arm 21 tends to move towards the positive Z-axis, i.e., it tends to move upwards. The first swing arm 21 is rotatably connected to the bearing base 10 via the first rotating shaft 23, so the tendency of the first swing arm 21 to move upward and to the left at the same time causes the first swing arm 21 to rotate in a clockwise direction.

[0164] Simultaneously, the second inclined surface 3131 of the first adjusting member 31 and the second inclined surface 3131 of the second adjusting member 32 continuously push against the two second abutting surfaces 2231 of the second swing arm 22. The two second abutting surfaces 2231 are subjected to a second abutting force F2, the direction of which is perpendicular to the second inclined surface 3131 of the first adjusting member 31 and the second inclined surface 3131 of the second adjusting member 32. The component of F2 in the X-axis direction is F21, which is directed towards the positive X-axis. The component of F2 in the Z-axis direction is F22, which is directed towards the positive Z-axis. Under the action of F21, the second swing arm 22 tends to move towards the positive X-axis, i.e., it tends to move to the right. At the same time, under the action of F22, the second swing arm 22 tends to move towards the positive Z-axis, i.e., it tends to move upward. The second swing arm 22 is rotatably connected to the bearing base 10 through the second rotating shaft 24. Therefore, the simultaneous upward and rightward movement of the second swing arm 22 causes it to rotate counterclockwise.

[0165] In summary, the first swing arm 21 rotates clockwise, and the second swing arm 22 rotates counterclockwise, reducing the angle between the first swing arm 21 and the second swing arm 22. When the angle between the first swing arm 21 and the second swing arm 22 decreases to 180 degrees, the first adjusting member 31 and the second adjusting member 32 stop moving.

[0166] At this time, as Figure 18As shown, the operator can weld and fix the guide post 3113 of the first adjusting member 31 to the guide hole 1112 of the first edge segment 11b, and weld and fix the guide post 3113 of the second adjusting member 32 to the guide hole 3113 of the second edge segment 11c (not shown in the figure, please refer to the matching relationship between the guide post 3113 of the first adjusting member 31 and the guide hole 1112 of the first edge segment 11b). This ensures that the height of the first adjusting member 31 and the second adjusting member 32 remains constant in the Z-axis direction, the included angle between the first swing arm 21 and the second swing arm 22 remains at 180 degrees, and the flattening angle of the foldable electronic device 1000 remains at 180 degrees.

[0167] like Figure 18 As shown, to facilitate welding, multiple welding grooves 119 are recessed on the lower surface of the center beam 11 along the Z-axis direction, that is, multiple welding grooves 119 are recessed on the surface of the bearing base 10 opposite to the adjusting member 30. Along the Z-axis direction, the multiple welding grooves 119 correspond one-to-one with and communicate with multiple guide holes 1112. The center of the projection of the welding groove 119 in the Z-axis direction coincides with the center of the projection of the guide hole 1112 in the Z-axis direction. The diameter of the welding groove 119 is larger than the diameter of the guide hole 1112, and the guide post 3113 protrudes through the welding groove 119. The design of the welding groove 119 facilitates the contact of the welding torch with the guide post 3113, making welding easier, and the welding groove 119 can accommodate weld marks, preventing weld marks from protruding from the lower surface of the center beam 11 and affecting the installation of the display screen 300.

[0168] Please refer to Figure 20 , Figure 20 This is an adjustment state diagram when the included angle between the first swing arm 21 and the second swing arm 22 is less than 180 degrees. When the measured angle is less than 180 degrees, as... Figure 20 In state A, the two first abutting surfaces 2131 of the first swing arm 21 have abutted against the first inclined surface 3121 of the first adjusting member 31 and the first inclined surface 3121 of the second adjusting member 32, and the two second abutting surfaces 2231 of the second swing arm 22 have abutted against the second inclined surface 3131 of the first adjusting member 31 and the second inclined surface 3131 of the second adjusting member 32, so that the first swing arm 21 and the second swing arm 22 cannot continue to rotate, and thus the included angle between the first swing arm 21 and the second swing arm 22 is less than 180 degrees.

[0169] At this time, the operator adjusts the drive component 50, causing the drive component 50 and the elastic component 40 to drive the adjustment component 30 to move along the second direction. The first inclined surface 3121 moves away from the first abutting surface 2131, and the second inclined surface 3131 moves away from the second abutting surface 2231, so that the first swing arm 21 rotates along the second rotation direction, and the second swing arm 22 rotates along the first rotation direction, thereby increasing the flattening angle of the first swing arm 21 and the second swing arm 22. The second direction is oriented towards the negative Z-axis direction.

[0170] Specifically, the workers used a screwdriver to turn the two drive components 50mm counterclockwise ( Figure 16 Rotate in the direction shown, that is, rotate the first drive member 50a and the second drive member 50b counterclockwise ( Figure 16 The first drive member 50a and the second drive member 50b are rotated (in the direction shown) to tighten them. The first adjusting member 31 and the second adjusting member 32 are locked more tightly to the center beam 11. The first adjusting member 31 and the second adjusting member 32 move towards the center beam 11, that is, they move towards the negative Z-axis direction. During the movement of the first adjusting member 31 and the second adjusting member 32 towards the center beam 11, the first elastic member 40a and the second elastic member 40b are compressed, generating elastic force. The elastic force generated by the first elastic member 40a supports the first adjusting member 31, and the elastic force generated by the second elastic member 40b supports the second adjusting member 32, preventing the first adjusting member 31 and the second adjusting member 32 from shaking, thereby improving the stability of the first adjusting member 31 and the second adjusting member 32.

[0171] like Figure 20 In state B, as the first adjusting member 31 and the second adjusting member 32 move toward the negative Z-axis, the first inclined surface 3121 of the first adjusting member 31 and the first inclined surface 3121 of the second adjusting member 32 move away from the two first abutting surfaces 2131 of the first swing arm 21, so that there is a gap between the two first abutting surfaces 2131 and the first inclined surface 3121 of the first adjusting member 31 and the first inclined surface 3121 of the second adjusting member 32, and the first swing arm 21 can continue to unfold, and the first swing arm 21 can rotate counterclockwise around the axis of the first rotating shaft 23.

[0172] Meanwhile, the second inclined surface 3131 of the first adjusting member 31 and the second inclined surface 3131 of the second adjusting member 32 are respectively far away from the two second abutting surfaces 2231 of the second swing arm 22, so that there is a gap between the two second abutting surfaces 2231 and the second inclined surface 3131 of the first adjusting member 31 and the second inclined surface 3131 of the second adjusting member 32, so that the second swing arm 22 can continue to unfold and the second swing arm 22 can rotate clockwise around the axis of the second rotating shaft 24.

[0173] like Figure 20In state C, as shown, when the first swing arm 21 and the second swing arm 22 continue to extend to a flattening angle of 180 degrees, the first adjusting member 31 and the second adjusting member 32 stop moving. The two first abutting surfaces 2131 of the first swing arm 21 respectively abut against the first inclined surface 3121 of the first adjusting member 31 and the first inclined surface 3121 of the second adjusting member 32, causing the first swing arm 21 to stop rotating. The two second abutting surfaces 2231 of the second swing arm 22 respectively abut against the second inclined surface 3131 of the first adjusting member 31 and the second inclined surface 3131 of the second adjusting member 32, causing the second swing arm 22 to stop rotating.

[0174] At this point, the worker can weld and fix the guide post 3113 of the first adjusting member 31 to the guide hole 1112 of the first edge segment 11b, and weld and fix the guide post 3113 of the second adjusting member 32 to the guide hole 1112 of the second edge segment 11c. This ensures that the height of the first adjusting member 31 and the second adjusting member 32 remains constant in the Z-axis direction, the included angle between the first swing arm 21 and the second swing arm 22 can always remain at 180 degrees, and the flattening angle of the foldable electronic device 1000 can always remain at 180 degrees.

[0175] In summary, the driving member 50 and the elastic member 40 can drive the adjusting member 30 to move relative to the bearing base 10 along the Z-axis direction (the thickness direction of the rotating mechanism). The first inclined surface 3121 pushes against or moves away from the first abutting surface 2131, the second inclined surface 3131 pushes against or moves away from the second abutting surface 2231, and the first swing arm 21 and the second swing arm 22 both rotate relative to the bearing base 10, thereby changing the flattening angle of the first swing arm 21 and the second swing arm 22.

[0176] In this embodiment, the adjusting member 30 can move along the thickness direction of the rotating mechanism 100. The first mating part 312 pushes or moves away from the first supporting part 213, and the second mating part 313 pushes or moves away from the second supporting part 223, so that the first swing arm 21 and the second swing arm 22 rotate relative to the bearing base 10. The flattening angle between the first swing arm 21 and the second swing arm 22 is adjusted to 180 degrees, and then the flattening angle between the first housing 210 and the second housing 220 is adjusted to 180 degrees, which improves the display effect and feel of the display screen 300 and helps to improve the user experience.

[0177] Meanwhile, in related technologies, if the unfolding angle of the foldable electronic device 1000 is found to be not equal to 180 degrees, the foldable electronic device 1000 must be scrapped. In this embodiment, the unfolding angle of the foldable electronic device 1000 can be adjusted by the adjustment component 30 before the display screen 300 is installed. Adjusting the unfolding angle to 180 degrees before installing the display screen 300 helps improve the product assembly yield. Finished products with an unfolding angle not equal to 180 degrees do not need to be scrapped, thus avoiding resource waste.

[0178] In this embodiment, the adjusting member 30 moves along the thickness direction of the rotating mechanism 100 under the drive of the driving member 50. The operator can adjust the flattening angle between the first housing 210 and the second housing 220 by adjusting the driving member 50, which is convenient and improves assembly efficiency. In another embodiment, the driving member 50 is a screw, allowing the operator to use a screwdriver to rotate the driving member 50 to adjust the flattening angle between the first housing 210 and the second housing 220, making adjustment even more convenient and improving assembly efficiency. In other embodiments, the driving member 50 includes a push rod and a pin. The push rod abuts against the adjusting member 30, and after the push rod pushes the adjusting member 30 to a suitable position, the pin is used to fix the push rod.

[0179] In this embodiment, during the movement of the adjusting member 30, the elastic member 40 continuously abuts against the adjusting member 30, and the elastic force of the elastic member 40 continuously supports the adjusting member 30, which helps to improve the stability of the moving adjusting member 30. Simultaneously, after the flattening angle of the first housing 210 and the second housing 220 is adjusted to 180 degrees, the adjusting member 30 needs to remain stationary. In the stationary state, the elastic member 40 also continuously abuts against the adjusting member 30, and the elastic force of the elastic member 40 continuously supports the adjusting member 30, which helps to prevent the adjusting member 30 from shaking, allowing the adjusting member 30 to stably remain stationary. The positions of the first mating part 312 and the second mating part 313 will not easily change, so that the position of the first supporting part 213 abutting against the first mating part 312 and the position of the second supporting part 223 abutting against the second mating part 313 will not easily change. This ensures that the flattening angle of the first swing arm 21 and the second swing arm 22 can be maintained at 180 degrees for a long time, and the flattening angle of the first housing 210 and the second housing 220 can be maintained at 180 degrees for a long time. The foldable electronic device 1000 is more durable and has a longer lifespan.

[0180] In this embodiment, by setting the first abutting surface 2131 to abut against the first inclined surface 3121, and the second abutting surface 2231 to abut against the second inclined surface 3131, the first swing arm 21 and the second swing arm 22 stop rotating, thereby causing the first swing arm 21 and the second swing arm 22 to be in a flattened state. With surfaces abutting against each other, the force distribution between the first abutting part 213 and the first mating part 312, and between the second abutting part 223 and the second mating part 313, is better, resulting in higher stability. Simultaneously, the wear of the first abutting part 213, the second abutting part 223, the first mating part 312, and the second mating part 313 is reduced, thereby improving the product's lifespan.

[0181] In this embodiment, during the movement of the first adjusting member 31 and the second adjusting member 32, the guide posts 3113 of the first adjusting member 31 and the guide posts 3113 of the second adjusting member 32 cooperate with the guide holes 1112 of the middle beam 11 to guide the first adjusting member 31 and the second adjusting member 32, making the movement of the first adjusting member 31 and the second adjusting member 32 smoother, thereby improving the stability of the rotating mechanism 100. The rectangular arrangement of the four guide posts 3113 of the first adjusting member 31 and the four guide posts 3113 of the second adjusting member 32 helps to prevent the first adjusting member 31 and the second adjusting member 32 from rotating around the Z-axis, thus limiting the degree of freedom of rotation of the first adjusting member 31 and the second adjusting member 32 around the Z-axis, making the first adjusting member 31 and the second adjusting member 32 more stable. In other embodiments, the guide post 3113 is provided on the middle beam 11, and the guide hole 1112 is provided on the first adjusting member 31 and the second adjusting member 32, that is, the bearing base 10 is provided with the guide post 3113, and the adjusting member 30 is provided with the guide hole 1112.

[0182] In the assembly of the foldable electronic device 1000, the display screen 300 is assembled last. In this embodiment, the side of the central beam 11 facing the first outer surface 101 is used to mount the display screen 300. When the display screen 300 is mounted on the first housing 210 and the second housing 220, the third display portion 330 of the display screen 300 will cover the lower surface of the central beam 11. In this embodiment, the first adjusting member 31 and the second adjusting member 32 are respectively threaded to the central beam 11. Along the Z-axis direction, the first driving member 50a and the second driving member 50b are both locked in from the lower surface of the central beam 11. This design allows the head 52 of the first driving member 50a and the head 52 of the second driving member 50b to be exposed before the display screen 300 is installed. Before the display screen 300 is installed, the operator can twist the first driving member 50a and the second driving member 50b to adjust the flattening angle between the first housing 210 and the second housing 220.

[0183] In the design state, when the foldable electronic device 1000 is in a flattened state, the two first abutting surfaces 2131 of the first swing arm 21 are respectively spaced apart from the first inclined surface 3121 of the first adjusting member 31 and the first inclined surface 3121 of the second adjusting member 32, and the two second abutting surfaces 2231 of the second swing arm 22 are respectively spaced apart from the second inclined surface 3131 of the first adjusting member 31 and the second inclined surface 3131 of the second adjusting member 32.

[0184] During product manufacturing, when both the first adjusting component 31 and the second adjusting component 32 have moved downwards to their maximum stroke, if the dimensions of the manufactured parts are too large, and in the designed state, no gap is reserved between the first abutment surface 2131 and the first inclined surface 3121, and no gap is reserved between the second abutment surface 2231 and the second inclined surface 3131, the included angle between the first swing arm 21 and the second swing arm 22 will be less than 180 degrees. At this time, the first swing arm 21 and the second swing arm 22 cannot be adjusted further, and the foldable electronic device 1000 must be scrapped.

[0185] If, in the design state, a gap is reserved between the first abutment surface 2131 and the first inclined surface 3121, and a gap is reserved between the second abutment surface 2231 and the second inclined surface 3131, even if the size of the manufactured parts is too large, the reserved gaps can still allow the first swing arm 21 and the second swing arm 22 to be extended to 180 degrees.

[0186] In some embodiments, please refer to Figure 21 , Figure 21 yes Figure 4 The diagram shows a cross-sectional view of the rotating mechanism 100 along line L6-L6 in another embodiment (the first swing arm 21, the second swing arm 22, the first mounting member 60, and the second mounting member 70 are omitted). Along the Z-axis, the first outer surface 101 is the surface of the cover plate 12A facing away from the center beam 11, and the first cavity wall 141 is the bottom surface of the second receiving groove 121. Exemplarily, along the Z-axis, the first outer surface 101 is the surface of the first cover plate 12 facing away from the center beam 11, and the first cavity wall 141 is the bottom surface of the second receiving groove 121 of the first cover plate 12.

[0187] In other words, the threaded portion 51 of the first driving member 50a passes through the first cover plate 12 and enters the first mounting cavity 14a, and is threadedly connected to the first adjusting member 31. The first elastic member 40a is disposed between the first adjusting member 31 and the first cover plate 12. Along the Z-axis direction, the two ends of the first elastic member 40a respectively abut against the bottom surface of the second receiving groove 121 of the first adjusting member 31 and the first cover plate 12.

[0188] Specifically, the difference between this embodiment and the first embodiment is that in the first embodiment, the through hole 1113 and the receiving hole 1114 located on the first edge segment 11b are located on the first cover plate 12. The through hole 1113 of the first cover plate 12 penetrates the bottom surface of the second receiving groove 121 and the surface of the first cover plate 12 facing away from the second receiving groove 121, and the receiving hole 1114 of the first cover plate 12 is recessed in the surface of the first cover plate 12 facing away from the second receiving groove 121. The threaded portion 51 of the first driving member 50a passes through the receiving hole 1114 and the through hole 1113 of the first cover plate 12 in sequence, and is threadedly connected to the threaded hole 3114 of the first adjusting member 31 to connect the first adjusting member 31 to the first cover plate 12. The head 52 of the first driving member 50a is received in the receiving hole 1114 and abuts against the stepped surface 1115.

[0189] In this embodiment, the side of the middle beam 11 facing away from the cover plate 12A is used to install the display screen 300. The first edge segment 11b is not provided with a through hole 1113 and a receiving hole 1114, and the first driving member 50a is locked in from the first cover plate 12, which is beneficial to improving the flatness of the lower surface of the middle beam 11 and is beneficial to the installation of the display screen 300.

[0190] Similarly, along the Z-axis, the first outer surface 101 is the surface of the second cover plate 13 facing away from the middle beam 11, and the first cavity wall 141 is the bottom surface of the second receiving groove 121 of the second cover plate 13. That is, the threaded portion 51 of the second driving member 50b passes through the second cover plate 13 and enters the second mounting cavity 14b, and is threadedly connected to the second adjusting member 32. The second elastic member 40b is disposed between the second adjusting member 32 and the second cover plate 13. Along the Z-axis, the two ends of the second elastic member 40b respectively abut against the bottom surface of the second receiving groove 121 of the second adjusting member 32 and the second cover plate 13. This design can make the flatness of the middle beam 11 higher. For details, please refer to the above-mentioned cooperation relationship between the first adjusting member 31, the first cover plate 12, the first elastic member 40a, the first driving member 50a and the middle beam 11, which will not be repeated here.

[0191] In some embodiments, please refer to Figure 22 , Figure 22 yes Figure 4The rotating mechanism 100 shown is a cross-sectional view along line L6-L6 in another embodiment (the first swing arm 21, the second swing arm 22, the first mounting member 60, and the second mounting member 70 are omitted). In this embodiment, the first cavity wall 141 is the bottom surface of the first receiving groove 111 of the middle beam 11, the second cavity wall 142 is the bottom surface of the second receiving groove 121 of the cover plate 12A, and the first outer surface 101 is the lower surface of the middle beam 11. Along the Z-axis direction, the elastic member 40 is disposed between the second cavity wall 142 and the adjusting member 30, with one end of the elastic member 40 abutting against the second cavity wall 142 and the other end of the elastic member 40 abutting against the adjusting member 30. The threaded portion 51 of the driving member 50 is threadedly connected to the bearing base 10. Along the Z-axis direction, the threaded portion 51 of the driving member 50 passes through the first outer surface 101 and the first cavity wall 141 in sequence into the mounting cavity 14, and abuts against the side of the adjusting member 30 away from the elastic member 40.

[0192] For example, the first elastic member 40a is disposed between the first adjusting member 31 and the bottom surface of the second receiving groove 121 of the first cover plate 12. The two ends of the first elastic member 40a respectively abut against the bottom surface of the first adjusting member 31 and the second receiving groove 121 of the first cover plate 12. That is, the first elastic member 40a is disposed between the second cavity wall 142 of the first mounting cavity 14a and the first adjusting member 31. The two ends of the first elastic member 40a abut against the second cavity wall 142 of the first mounting cavity 14a and the first adjusting member 31 respectively. The first driving member 50a is threadedly connected to the middle beam 11. The threaded portion 51 of the first driving member 50a passes through the middle beam 11, enters the first mounting cavity 14a, and abuts against the side of the first adjusting member 31 away from the first elastic member 40a. That is, the threaded portion 51 of the first driving member 50a passes through the first outer surface 101 and the first cavity wall 141 of the first mounting cavity 14a in sequence, enters the first mounting cavity 14a, and abuts against the side of the first adjusting member 31 away from the first elastic member 40a.

[0193] The difference between this embodiment and the first embodiment is that: the first elastic member 40a is disposed between the bottom surface of the second receiving groove 121 of the first adjusting member 31 and the first cover plate 12; the first adjusting member 31 does not have a threaded hole 3114; and the wall surface of the through hole 1113 of the first edge segment 11b is provided with an internal thread. The threaded portion 51 of the first driving member 50a is threadedly connected to the through hole 1113 of the first edge segment 11b and passes into the first mounting cavity 14a to abut against the side of the first adjusting member 31 opposite to the first elastic member 40a. That is, the first driving member 50a and the first adjusting member 31 are connected by abutment.

[0194] In this embodiment, when the first driving member 50a moves upward, it pushes the first adjusting member 31 upward, at which time the first elastic member 40a is compressed and generates elastic force. Conversely, when the first driving member 50a moves downward, it moves away from the first adjusting member 31. At this time, the first elastic member 40a rebounds and pushes the first adjusting member 31 downward.

[0195] Similarly, the second elastic member 40b is disposed between the second adjusting member 32 and the bottom surface of the second receiving groove 121 of the second cover plate 13. The two ends of the second elastic member 40b respectively abut against the bottom surface of the second receiving groove 121 of the second adjusting member 32 and the second cover plate 13. That is, the second elastic member 40b is disposed between the second adjusting member 32 and the second cavity wall 142 of the second mounting cavity 14b. The two ends of the second elastic member 40b respectively abut against the second adjusting member 32 and the second cavity wall 142 of the second mounting cavity 14b. The second driving member 50b is threadedly connected to the middle beam 11. The threaded portion 51 of the second driving member 50b passes through the middle beam 11, enters the second mounting cavity 14b, and abuts against the side of the second adjusting member 32 away from the second elastic member 40b (not shown in the figure, but you can refer to the cooperation relationship between the first adjusting member 31, the first cover plate 12, the first elastic member 40a, the first driving member 50a, and the middle beam 11). That is, the threaded portion 51 of the second driving member 50b passes through the first outer surface 101 and the first cavity wall 141 of the second mounting cavity 14b in sequence, enters the second mounting cavity 14b, and abuts against the side of the second adjusting member 32 away from the second elastic member 40b. This design also allows the second adjusting member 32 to move up and down, and the structure is simple.

[0196] It is understood that in this embodiment, the adjustment member 30 is supported on both sides along the Z-axis by the driving member 50 and the elastic member 40 to achieve installation. The structure is simple, the assembly is convenient, and it is beneficial to improve the assembly efficiency.

[0197] In other embodiments, please refer to Figure 23 , Figure 23 yes Figure 4 The rotating mechanism 100 shown is a cross-sectional view along line L6-L6 in another embodiment (first swing arm 21, second swing arm 22, first mounting member 60 and second mounting member 70 are omitted).

[0198] In this embodiment, the first cavity wall 141 is the bottom surface of the second receiving groove 121 of the cover plate 12A, the second cavity wall 142 is the bottom surface of the first receiving groove 111 of the middle beam 11, and the first outer surface 101 is the upper surface of the cover plate 12A. Along the Z-axis direction, the elastic member 40 is disposed between the second cavity wall 142 and the adjusting member 30. One end of the elastic member 40 abuts against the second cavity wall 142, and the other end abuts against the adjusting member 30. The threaded portion 51 of the driving member 50 is threadedly connected to the bearing base 10. Along the Z-axis direction, the threaded portion 51 of the driving member 50 passes sequentially through the first outer surface 101 and the first cavity wall 141 into the mounting cavity 14, and abuts against the side of the adjusting member 30 opposite to the elastic member 40.

[0199] For example, the first elastic member 40a is disposed between the bottom surface of the first receiving groove 111 of the first edge segment 11b and the first adjusting member 31. The two ends of the first elastic member 40a along the Z-axis direction respectively abut against the bottom surface of the first receiving groove 111 of the first edge segment 11b and the first adjusting member 31. That is, the first elastic member 40a is disposed between the second cavity wall 142 of the first mounting cavity 14a and the first adjusting member 31. One end of the first elastic member 40a abuts against the second cavity wall 142 of the first mounting cavity 14a, and the other end of the first elastic member 40a abuts against the first adjusting member 31. The first driving member 50a is threadedly connected to the first cover plate 12, and the threaded portion 51 of the first driving member 50a passes through the first cover plate 12, enters the first mounting cavity 14a, and abuts against the side of the first adjusting member 31 away from the first elastic member 40a. That is, the threaded portion 51 of the first driving member 50a passes through the first outer surface 101 and the first cavity wall 141 of the first mounting cavity 14a in sequence, enters the first mounting cavity 14a, and abuts against the side of the first adjusting member 31 away from the first elastic member 40a.

[0200] The second elastic member 40b is disposed between the bottom surface of the first receiving groove 111 of the second edge segment 11c and the second adjusting member 32. The two ends of the second elastic member 40b along the Z-axis direction respectively abut against the bottom surface of the first receiving groove 111 of the second edge segment 11c and the second adjusting member 32. That is, the second elastic member 40b is disposed between the second cavity wall 142 of the second mounting cavity 14b and the second adjusting member 32. One end of the second elastic member 40b abuts against the second cavity wall 142 of the second mounting cavity 14b, and the other end of the second elastic member 40b abuts against the second adjusting member 32. The second driving member 50b is threadedly connected to the second cover plate 13. The threaded portion 51 of the second driving member 50b passes through the second cover plate 13, enters the second mounting cavity 14b, and abuts against the side of the second adjusting member 32 away from the second elastic member 40b (not shown in the figure, but you can refer to the above-mentioned matching relationship between the first adjusting member 31, the first cover plate 12, the first elastic member 40a, the first driving member 50a, and the middle beam 11). That is, the threaded portion 51 of the second driving member 50b passes through the first outer surface 101 and the first cavity wall 141 of the second mounting cavity 14b in sequence, enters the second mounting cavity 14b, and abuts against the side of the second adjusting member 32 away from the second elastic member 40b.

[0201] This design also allows the first adjusting member 31 and the second adjusting member 32 to move up and down, and has the advantages of simple structure, convenient assembly, and improved assembly efficiency. For details, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.

[0202] In some embodiments, please refer to Figure 24 , Figure 25 and Figure 26 , Figure 24 yes Figure 4 A partial structural schematic diagram of the bearing base 10 of the rotating mechanism 100 shown in another embodiment. Figure 25 yes Figure 24 The diagram shows the assembly structure of the support base 10 and the first adjustment member 31. Figure 26 yes Figure 25 A three-dimensional sectional view cut along line L7-L7.

[0203] The second receiving groove 121 of the first cover plate 12 penetrates both sides of the first cover plate 12 along the Z-axis direction, that is, the first cover plate 12 is completely broken to form the first sub-cover plate 12a and the second sub-cover plate 12b. The first adjusting member 31 is threadedly connected to the middle beam 11 through the first driving member 50a. The first elastic member 40a is disposed between the first adjusting member 31 and the middle beam 11. Along the X-axis direction, the two ends of the first elastic member 40a abut against the first adjusting member 31 and the middle beam 11 respectively.

[0204] The difference between this embodiment and the first embodiment is that the second receiving groove 121 of the first cover plate 12 extends through the first cover plate 12 along the Z-axis direction. This design makes the size of the second receiving groove 121 along the Z-axis direction larger, so that the size of the first mounting cavity 14a in the Z-axis direction is also larger. When the first adjusting member 31 is provided with a larger moving distance in the Z-axis direction, or when the size of the first adjusting member 31 in the Z-axis direction is set to be larger, the first mounting cavity 14a can accommodate the larger moving distance and larger overall size of the first adjusting member 31.

[0205] It is understood that in this embodiment, the size of the first mounting cavity 14a in the Z-axis direction is increased by the second receiving groove 121 penetrating through the first cover plate 12 along the Z-axis direction. This design does not require the thickness of the first cover plate 12 to be increased in the Z-axis direction at the same time, thereby ensuring that the overall thickness of the rotating mechanism 100 is thinner, which is more conducive to the thin and light design of the foldable electronic device 1000.

[0206] If the first cover plate 12 is not completely disconnected, and the size of the second receiving groove 121 along the Z-axis is increased, in order to ensure the structural strength of the first cover plate 12 at the second receiving groove 121, the side of the first cover plate 12 away from the second receiving groove 121 needs to be thickened along the Z-axis. This will result in a larger thickness of the rotating mechanism 100, and consequently a thicker thickness of the foldable electronic device 1000.

[0207] Similarly, the second receiving groove 121 of the second cover plate 13 can also penetrate through the second cover plate 13, that is, the second cover plate 13 is completely disconnected. This design also has the same technical effect, and for details, please refer to the relevant description of the first cover plate 12 above, which will not be repeated here.

[0208] In some embodiments, please refer to Figure 27 , Figure 28 and Figure 29 , Figure 27 yes Figure 4 A partial structural schematic diagram of the bearing base 10 of the rotating mechanism 100 shown in another embodiment. Figure 28 yes Figure 27 The diagram shows the assembly structure of the support base 10 and the first adjustment member 31. Figure 29 yes Figure 28 A three-dimensional sectional view cut along line L8-L8.

[0209] In this embodiment, the first receiving groove 111 of the first edge segment 11b extends through the first edge segment 11b along the Z-axis direction, that is, the first receiving groove 111 extends through both sides of the middle beam 11 along the Z-axis direction. The first adjusting member 31 is threadedly connected to the first cover plate 12 through the first driving member 50a, and the first elastic member 40a is disposed between the first adjusting member 31 and the first cover plate 12. Along the Z-axis direction, the two ends of the first elastic member 40a abut against the first adjusting member 31 and the first cover plate 12 respectively.

[0210] The difference between this embodiment and the first embodiment is that the first edge segment 11b of the central beam 11 is disconnected. This design can also increase the size of the first mounting cavity 14a in the Z-axis direction without increasing the thickness of the rotating mechanism 100, so as to meet the requirement of a larger moving distance and larger overall size of the first adjusting member 31 in the Z-axis direction.

[0211] Similarly, the first receiving groove 111 of the second edge segment 11c extends through the second edge segment 11c along the Z-axis direction. The second adjusting member 32 is threadedly connected to the second cover plate 13 through the second driving member 50b, and the second elastic member 40b is disposed between the second adjusting member 32 and the second cover plate 13. Along the Z-axis direction, the two ends of the second elastic member 40b respectively abut against the second adjusting member 32 and the second cover plate 13.

[0212] This design can also increase the size of the second mounting cavity 14b in the Z-axis direction without increasing the thickness of the rotating mechanism 100, so as to meet the requirements of a larger moving distance and larger overall size of the second adjusting member 32 in the Z-axis direction.

[0213] The above are merely some embodiments and implementation methods of this application. The scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A rotating mechanism, characterized in that, It includes a support base, a first swing arm, a second swing arm, and an adjustment assembly; the support base is disposed between the first swing arm and the second swing arm, and both the first swing arm and the second swing arm are rotatably connected to the support base; the support base is provided with a mounting cavity. The adjustment assembly includes an adjustment member, an elastic member, and a driving member. The adjustment member and the elastic member are installed in the mounting cavity. Along the thickness direction of the rotation mechanism, the elastic member is located between the adjustment member and the cavity wall of the mounting cavity. One end of the elastic member abuts against the cavity wall of the mounting cavity, and the other end of the elastic member abuts against the adjustment member. The driving component is mounted on the bearing base, one end of the driving component extends into the mounting cavity and is connected to the adjusting component. The driving component and the elastic component are used to drive the adjusting component to move along the thickness direction of the rotating mechanism. The adjusting component is provided with a first mating part and a second mating part. The first swing arm is provided with a first abutting part and the second swing arm is provided with a second abutting part. Along the width direction of the rotating mechanism, the first abutting part abuts against the first mating part and the second abutting part abuts against the second mating part, so that the first swing arm and the second swing arm are in a flattened state relative to the bearing base. The adjusting component is provided with a guide post, and the bearing base is provided with a guide hole; or, the adjusting component is provided with a guide hole, and the bearing base is provided with a guide post; the axial direction of the guide post and the axial direction of the guide hole are both parallel to the thickness direction of the rotating mechanism, and the guide post extends into the guide hole; When the included angle between the first swing arm and the second swing arm is 180 degrees, the guide post is welded and fixed to the guide hole.

2. The rotating mechanism according to claim 1, characterized in that, The first mating part is provided with a first inclined surface, and the second mating part is provided with a second inclined surface. Both the first inclined surface and the second inclined surface are inclined relative to the reference surface, and the reference surface is perpendicular to the thickness direction of the rotating mechanism. The inclination directions of the first inclined surface and the second inclined surface are opposite. The first abutting part is provided with a first abutting surface, and the second abutting part is provided with a second abutting surface. Both the first abutting surface and the second abutting surface are inclined relative to the reference surface, and the inclination directions of the first abutting surface and the second abutting surface are opposite. When the first swing arm and the second swing arm are in a flattened state relative to the bearing base, the first abutting surface abuts against the first inclined surface, and the second abutting surface abuts against the second inclined surface.

3. The rotating mechanism according to claim 2, characterized in that, The driving member and the elastic member can drive the adjusting member to move relative to the bearing base along the thickness direction of the rotating mechanism. The first inclined surface pushes against or moves away from the first abutting surface, and the second inclined surface pushes against or moves away from the second abutting surface. The first swing arm and the second swing arm both rotate relative to the bearing base, thereby changing the flattening angle of the first swing arm and the second swing arm.

4. The rotating mechanism according to claim 3, characterized in that, The driving member and the elastic member drive the adjusting member to move along a first direction, the first inclined surface pushes against the first abutting surface, and the second inclined surface pushes against the second abutting surface, so that the first swing arm rotates along a first rotation direction and the second swing arm rotates along a second rotation direction, thereby reducing the flattening angle of the first swing arm and the second swing arm; the driving member and the elastic member drive the adjusting member to move along a second direction, the first inclined surface moves away from the first abutting surface and the second inclined surface moves away from the second abutting surface, so that the first swing arm rotates along the second rotation direction and the second swing arm rotates along the first rotation direction, thereby increasing the flattening angle of the first swing arm and the second swing arm. The first direction is parallel to the thickness direction of the rotating mechanism, the second direction is parallel to the thickness direction of the rotating mechanism, and the second direction is opposite to the first direction; one of the first rotation direction and the second rotation direction is clockwise, and the other is counterclockwise.

5. The rotating mechanism according to any one of claims 1 to 4, characterized in that, The driving component is a screw, which includes a threaded portion and a head, and the threaded portion is connected to the head along the length of the driving component. The mounting cavity includes a first cavity wall surface, and the bearing base includes a first outer surface. Along the thickness direction of the rotating mechanism, the first outer surface is opposite to the first cavity wall surface. Along the thickness direction of the rotating mechanism, the threaded portion passes through the first outer surface and the first cavity wall surface in sequence to enter the mounting cavity and is threadedly connected to the adjusting member. The head abuts against the side of the bearing base opposite to the first cavity wall surface. Along the thickness direction of the rotating mechanism, the elastic element is located between the first cavity wall and the adjusting element, with one end of the elastic element abutting the adjusting element and the other end of the elastic element abutting the first cavity wall.

6. The rotating mechanism according to claim 5, characterized in that, The supporting base includes a central beam and a cover plate. Along the thickness direction of the rotating mechanism, the cover plate and the central beam are stacked and fixed. The surface of the central beam facing the cover plate is recessed with a first receiving groove, which penetrates both sides of the central beam along the width direction of the rotating mechanism. The surface of the cover plate facing the central beam is recessed with a second receiving groove, which penetrates both sides of the cover plate along the width direction of the rotating mechanism. Along the thickness direction of the rotating mechanism, the first receiving groove and the second receiving groove are opposite to each other and communicate to form the mounting cavity.

7. The rotating mechanism according to claim 6, characterized in that, Along the thickness direction of the rotating mechanism, the first outer surface is the surface of the middle beam away from the cover plate, and the first cavity wall surface is the bottom surface of the first receiving groove; the side of the middle beam facing the first outer surface is used to install the display screen.

8. The rotating mechanism according to claim 7, characterized in that, The second receiving groove extends through both sides of the cover plate along the thickness direction of the rotating mechanism.

9. The rotating mechanism according to claim 6, characterized in that, Along the thickness direction of the rotating mechanism, the first outer surface is the surface of the cover plate facing away from the middle beam, the first cavity wall surface is the bottom surface of the second receiving groove, and the side of the middle beam facing away from the cover plate is used to install the display screen.

10. The rotating mechanism according to claim 9, characterized in that, The first receiving groove extends through both sides of the middle beam along the thickness direction of the rotating mechanism.

11. The rotating mechanism according to any one of claims 1 to 4, characterized in that, The driving component is a screw, and the driving component includes a threaded portion; the mounting cavity includes a first cavity wall surface and a second cavity wall surface, and the bearing base includes a first outer surface; along the thickness direction of the rotating mechanism, the first cavity wall surface and the second cavity wall surface are spaced apart and opposite to each other, and the first outer surface is opposite to the first cavity wall surface; Along the thickness direction of the rotating mechanism, the elastic element is disposed between the second cavity wall and the adjusting element. One end of the elastic element abuts against the second cavity wall, and the other end of the elastic element abuts against the adjusting element. The threaded portion is threadedly connected to the bearing base. Along the thickness direction of the rotating mechanism, the threaded portion passes through the first outer surface and the first cavity wall in sequence to enter the mounting cavity and abuts against the side of the adjusting element away from the elastic element.

12. The rotating mechanism according to any one of claims 1 to 4, characterized in that, Along the thickness direction of the rotating mechanism, the cavity wall of the mounting cavity is recessed with a fixing groove, and one end of the elastic member extends into the fixing groove and abuts against the bottom surface of the fixing groove.

13. The rotating mechanism according to any one of claims 1 to 4, characterized in that, Along the thickness direction of the rotating mechanism, the adjusting member is recessed with a support groove on the side facing the elastic member, and one end of the elastic member extends into the support groove and abuts against the bottom surface of the support groove.

14. The rotating mechanism according to claim 13, characterized in that, The bottom surface of the abutment groove is provided with a fixing post, and one end of the elastic element is sleeved on the fixing post and abuts against the bottom surface of the abutment groove.

15. The rotating mechanism according to claim 1, characterized in that, Along the thickness direction of the rotating mechanism, the surface of the bearing base opposite to the adjusting member is recessed with a welding groove; the welding groove communicates with the guide hole, the center of the projection of the welding groove in the thickness direction of the rotating mechanism coincides with the center of the projection of the guide hole in the thickness direction of the rotating mechanism, the diameter of the welding groove is larger than the diameter of the guide hole, and the guide post is exposed through the welding groove.

16. The rotating mechanism according to any one of claims 1 to 4, characterized in that, It also includes a first mounting component and a second mounting component, wherein the first mounting component is disposed on the side of the first swing arm away from the bearing base, and the second mounting component is disposed on the side of the second swing arm away from the bearing base; One side of the first swing arm is rotatably connected to the bearing base, and the side of the first swing arm away from the bearing base is slidably and rotatably connected to the first mounting member; one side of the second swing arm is rotatably connected to the bearing base, and the side of the second swing arm away from the bearing base is slidably and rotatably connected to the second mounting member.

17. A foldable electronic device, characterized in that, The device includes a first housing, a second housing, and a rotating mechanism as described in any one of claims 1 to 16, wherein the rotating mechanism is disposed between the first housing and the second housing, the side of the first swing arm away from the bearing base is connected to the first housing, and the side of the second swing arm away from the bearing base is connected to the second housing; The first swing arm and the second swing arm rotate relative to the support base to drive the first housing and the second housing to rotate relative to the support base.

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