Rotating shaft mechanism and electronic equipment

Abstract

The invention discloses a rotating shaft mechanism and electronic equipment, and belongs to the technical field of electronic equipment. The electronic equipment comprises a base, a first swing arm, an abutting piece, a door plate and a connecting piece. The first swing arm can rotate between an unfolding position and a folding position relative to the base; the abutting piece is movably connected with the first swing arm, and the abutting piece is provided with a first stopping part; the door plate is movably connected with the abutting piece, and in the process that the first swing arm rotates relative to the base, the first swing arm can drive the abutting piece to move so that the abutting piece can drive the door plate to rotate relative to the base; the first swing arm is movably connected with the connecting piece, and the connecting piece is provided with a second stop part; when the first swing arm is located at the folding position, the first stopping part and the second stopping part are oppositely arranged, and the second stopping part can abut against the first stopping part. The possibility that the display screen of the electronic equipment is extruded is reduced or avoided, then the display screen is protected, and normal functions of the display screen are guaranteed.

Description

Technical Field

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

[0002] With the rapid development of flexible display technology, foldable electronic devices, such as foldable phones, have gradually become popular products in the market. The core features of these devices lie in their display screens and hinge mechanisms, allowing users to switch between different forms. However, this design also brings new challenges, especially regarding the durability of the devices. In foldable devices, the hinge mechanism is responsible for the folding and unfolding of the screen. When the hinge mechanism is impacted by a bump or drop, the force is concentrated at the point of impact, which can easily compress the display screen and lead to its failure. Summary of the Invention

[0003] This application provides a hinge mechanism and an electronic device to solve the technical problem in the related art where the display screen is squeezed when dropped, leading to display screen failure.

[0004] The technical solution is as follows:

[0005] The first aspect of this application provides a pivot mechanism, which includes: a base, a first swing arm, an abutment member, a door panel, and a connecting member;

[0006] The first swing arm can rotate relative to the base between the unfolded position and the folded position;

[0007] The abutment is movably connected to the first swing arm, and the abutment has a first stop portion;

[0008] The door panel is movably connected to the abutment. During the rotation of the first swing arm relative to the base, the first swing arm can drive the abutment to move, so that the abutment drives the door panel to rotate relative to the base.

[0009] The first swing arm is movably connected to the connecting piece, which is provided with a second stop.

[0010] When the first swing arm is in the folded position, the first stop and the second stop are positioned opposite each other, and the second stop can abut against the first stop.

[0011] By adopting the above technical solution, the door panel is movably connected to the abutment and the first swing arm, and the door panel is movably connected to the abutment. This allows the abutment to control the movement of the door panel, improving the accuracy of the control. Furthermore, the first swing arm can drive the abutment to move. When the first swing arm is in the folded position, the first stop on the abutment and the second stop on the connecting member are configured opposite each other. Therefore, when the rotating shaft mechanism is impacted by a bump or drop, the base is subjected to force, which is transmitted to the swing arm. The swing arm then transmits the force to the abutment. When the first and second stops abut against each other, the abutment transmits the force to the connecting member. This prevents the first swing arm from moving relative to the connecting member, reducing or avoiding the possibility of squeezing the electronic device's display screen, thus protecting the display screen and ensuring its normal function.

[0012] In some implementations, the abutment and the first swing arm are connected by a lower pair; the door panel and the abutment are connected by a higher pair.

[0013] By adopting the above technical solutions, the low-pair connection can effectively transfer loads, resulting in a more uniform force distribution and reducing the risk of fatigue and damage at the connection between the abutment and the first swing arm. Furthermore, the low-pair connection makes the design and implementation of the rotating shaft mechanism more intuitive, facilitating operation and adjustment. The high-pair connection allows for more flexible control of the door panel.

[0014] In some implementations, the abutment is rotatably connected to the first swing arm, wherein one of the abutment and the first swing arm is provided with a first pin hole, and the other is provided with a first pin shaft, which is inserted into the first pin hole.

[0015] By adopting the above technical solution, the abutment and the first swing arm are rotatably connected by the first pin and the first pin hole, realizing the low-pair connection between the abutment and the first swing arm. In this way, the first swing arm can more easily control the movement of the abutment. In addition, the design of the first pin being inserted into the first pin hole can effectively transmit load and reduce local concentration. Furthermore, the cooperation between the first pin and the first pin hole also facilitates assembly and disassembly.

[0016] In some implementations, the door panel and the abutment are slidably connected. The door panel is provided with a first sliding groove, and the abutment includes a first sliding member, which is slidably disposed in the first sliding groove.

[0017] By adopting the above technical solution, the sliding connection between the door panel and the abutment is a high-pair connection, which is beneficial for controlling the door panel; the sliding design of the first sliding member in the first slide groove can realize smooth sliding movement, reduce frictional resistance, and thus improve the smoothness of movement and response speed; in addition, the sliding connection provides a relatively large range of motion, which allows the door panel to move flexibly between different positions.

[0018] In some implementations, the first sliding member is a cylindrical structure; the first sliding groove is a straight line.

[0019] By adopting the above technical solution, the first sliding member is cylindrical, which facilitates manufacturing. Furthermore, the cylindrical shape provides excellent guiding performance, ensuring stable movement of the first sliding member within the groove and preventing jamming or deviation. Because the groove is straight, the first sliding member can move freely within a certain range to meet design requirements. The combination of the cylindrical first sliding member and the straight first groove also reduces the contact area, lowers friction, improves motion efficiency, and reduces energy consumption.

[0020] In some implementations, the first stop portion includes a first stop surface, the second stop portion includes a second stop surface, and the first stop surface can abut against the second stop surface.

[0021] By adopting the above technical solution, the first stop surface abuts against the second stop surface, which increases the contact area and improves the effectiveness of the connecting part abutting against the abutting part.

[0022] In some implementations, when the first swing arm is in the folded position, the first stop surface and the second stop surface are arranged in parallel.

[0023] By adopting the above technical solution and using the parallel arrangement of the two components, the contact area can be maximized when they come into contact, thereby improving the effectiveness of the connection between the connector and the abutting component.

[0024] In some implementations, the first stop surface is a plane, and the second stop surface is a plane.

[0025] By adopting the above technical solution and using a planar form, the contact area between the first stop and the second stop can be increased, thereby improving the effectiveness of the connecting member in contacting the abutting member.

[0026] In some implementations, when the first swing arm is in the folded position, the first stop surface is perpendicular to the thickness direction of the base.

[0027] By adopting the above technical solution, when the first stop surface and the second stop surface come into contact, the possibility of slippage between them can be reduced or avoided, thereby improving the effectiveness of the first stop part and the second stop part abutting, which in turn helps to protect the display screen of electronic devices.

[0028] In some implementations, the first swing arm is connected to the connector via a lower pair.

[0029] By adopting the above technical solution, the use of low-pair connection can effectively transfer load, making the force distribution more uniform, reducing the risk of fatigue and damage at the connection between the connecting parts and the first swing arm, and helping to improve the service life of the rotating shaft mechanism.

[0030] In some implementations, the first swing arm is slidably connected to the connecting member, wherein the connecting member has a first sliding part, the first swing arm has a second sliding part, and the first sliding part and the second sliding part are in sliding engagement.

[0031] By adopting the above technical solution, the sliding connection between the first swing arm and the connecting piece, as well as the low-pair connection between the first swing arm and the connecting piece, can effectively transfer the load, making the force distribution more uniform, reducing the fatigue and damage risk at the connection between the connecting piece and the first swing arm, and helping to improve the service life of the rotating shaft mechanism.

[0032] In some implementations, the first sliding part includes a first mating surface and a second mating surface;

[0033] The second sliding part has a third mating surface and a fourth mating surface, which are located on opposite sides of the first swing arm. The first mating surface is in contact with the third mating surface, and the second mating surface is in contact with the fourth mating surface.

[0034] The first and second mating surfaces are spaced apart along the length of the connector, and the third and fourth mating surfaces are spaced apart along the length of the connector. The length of the connector is parallel to the length of the rotating shaft mechanism.

[0035] By adopting the above technical solution, the first mating surface and the second mating surface are distributed at intervals. This distributed design can achieve precise control of the transmission between the first swing arm and the connecting part.

[0036] In some implementations, the first sliding part includes a first mating surface and a second mating surface, and the second sliding part has a third mating surface and a fourth mating surface. The first mating surface is in contact with the third mating surface, and the third and fourth mating surfaces are located on opposite sides of the first swing arm. The second mating surface is in contact with the fourth mating surface.

[0037] The orthographic projection of the first mating surface in the preset plane and the orthographic projection of the second mating surface in the preset plane overlap at least partially;

[0038] The orthographic projection of the third mating surface in the preset plane and the orthographic projection of the fourth mating surface in the preset plane overlap at least partially;

[0039] The preset plane is parallel to the length direction of the connector, and the length direction of the connector is parallel to the length direction of the rotating shaft mechanism.

[0040] By adopting the above technical solution, the orthographic projection of the first mating surface in the preset plane and the orthographic projection of the second mating surface in the preset plane overlap at least partially, and the orthographic projection of the third mating surface in the preset plane and the orthographic projection of the fourth mating surface in the preset plane overlap at least partially. This facilitates the processing and manufacturing of the connecting parts and the first swing arm, and helps to improve production efficiency and reduce assembly errors.

[0041] In some implementations, the first swing arm is rotatably connected to the base, wherein the first swing arm has a second pin hole, and the rotating shaft mechanism further includes a second pin, which is mounted on the base and passes through the second pin hole.

[0042] By adopting the above technical solution, the load can be effectively transferred, the force distribution can be more uniform, the fatigue and damage risk at the connection between the base and the first swing arm can be reduced, and the service life of the rotating shaft mechanism can be improved.

[0043] In some implementations, the pivot mechanism further includes a second swing arm, which is rotatably connected to the base, has a high-pair connection with the door panel, and is rotatably connected to the connecting member.

[0044] By adopting the above technical solution, the abutment on the first swing arm is connected to the high pair of the door panel, and then the second swing arm is connected to the high pair of the door panel, so that the movement of the door panel can be better controlled.

[0045] In some implementations, the connector has a first arc-shaped groove, and the second swing arm has a first arc-shaped portion that extends into the first arc-shaped groove, so that the second swing arm is rotatably connected to the connector.

[0046] Alternatively, the rotating shaft mechanism may also include a third pin, the connecting member having a third pin hole, the second swing arm having a fourth pin hole, and the third pin passing through the third pin hole and the fourth pin hole to enable the second swing arm to be rotatably connected to the connecting member.

[0047] By adopting the above technical solution, the load can be effectively transferred, the force distribution can be more uniform, the fatigue and damage risk at the connection between the second swing arm and the connecting part can be reduced, and the service life of the rotating shaft mechanism can be improved.

[0048] In some implementations, the base has a second arc-shaped groove, and the second swing arm has a second arc-shaped portion that extends into the second arc-shaped groove so that the second swing arm is rotatably connected to the base.

[0049] The door panel has a strip-shaped through hole, and a fourth pin is installed on the second swing arm, which passes through the strip-shaped through hole.

[0050] By adopting the above technical solution, the second swing arm and the base are connected by a second arc-shaped groove and a second arc-shaped part, so that the second swing arm can rotate relative to the base and slide relative to the base. In this way, the second swing arm can meet other functional requirements of the rotating shaft mechanism. The second swing arm and the door panel are connected by a fourth pin and a strip-shaped through hole, so as to realize a high-pair connection between the second swing arm and the door panel. In addition, when the first swing arm can drive the door panel to rotate, the second swing arm is used to drive the door panel to rotate, thereby improving the control accuracy of the door panel movement.

[0051] A second aspect of this application provides an electronic device comprising: a flexible display screen, a housing, and a rotating shaft mechanism in any of the above implementations. The housing includes a first sub-housing and a second sub-housing, which are respectively connected to the rotating shaft mechanism and are capable of relative rotation between the first sub-housing and the second sub-housing via the rotating shaft mechanism. The flexible display screen is connected to the first sub-housing and the second sub-housing respectively.

[0052] By adopting the above technical solution, when the rotating shaft mechanism is applied to electronic devices, the door panel is movably connected to the first swing arm via the abutment, and the door panel is movably connected to the abutment. This allows the abutment to control the movement of the door panel, thereby improving the accuracy of door panel movement control. Furthermore, the first swing arm can drive the abutment to move. When the first swing arm is in the folded position, the first stop on the abutment and the second stop on the connecting member are configured to be opposite each other. Thus, when the rotating shaft mechanism is impacted by a bump or drop, the base is subjected to force transmitted to the swing arm, which in turn transmits the force to the abutment. When the first and second stops abut against each other, the abutment then transmits the force to the connecting member. This prevents the first swing arm from moving relative to the connecting member, thereby reducing or avoiding the possibility of squeezing the electronic device's display screen, protecting the display screen, and ensuring its normal function. Attached Figure Description

[0053] Figure 1 This is a schematic diagram of the electronic device provided in the embodiment of this application in its unfolded state;

[0054] Figure 2 This is a schematic diagram of the electronic device provided in the embodiments of this application in a semi-deployed state;

[0055] Figure 3 This is a schematic diagram of the structure of the electronic device provided in the embodiment of this application in a folded state;

[0056] Figure 4 This is a cross-sectional view of a rotating shaft mechanism in related technologies;

[0057] Figure 5 This is a schematic diagram of the motion principle of a rotating shaft mechanism in related technologies;

[0058] Figure 6 It is a simulation diagram of an electronic device in a folded state in related technologies when it has not been bumped or dropped;

[0059] Figure 7 It is a simulation diagram of an electronic device in a folded state being impacted by a bump or drop in the relevant technology;

[0060] Figure 8 This is a partial structural schematic diagram of the rotating shaft mechanism in the unfolded state provided in an embodiment of this application;

[0061] Figure 9 This is a cross-sectional view of the rotating shaft mechanism in a folded state provided in this application at the first swing arm;

[0062] Figure 10 This is a cross-sectional view of the pivot mechanism at the first swing arm in an embodiment of this application, which is located at a position between the unfolded position and the folded position.

[0063] Figure 11 This is a cross-sectional view of the pivot mechanism in a folded state provided in this application at another position of the first swing arm;

[0064] Figure 12 This is another partial structural schematic diagram of the rotating shaft mechanism in the unfolded state provided in the embodiments of this application;

[0065] Figure 13 The figure is a magnified view of part D in 12;

[0066] Figure 14 This is a schematic diagram of the structure of the abutment provided in the embodiments of this application;

[0067] Figure 15 This is another partial structural schematic diagram of the rotating shaft mechanism in the unfolded state provided in the embodiments of this application;

[0068] Figure 16 yes Figure 15 A magnified view of a portion of point E in the middle;

[0069] Figure 17 This is a schematic diagram of a form in which the first swing arm and the connecting member cooperate, as provided in an embodiment of this application;

[0070] Figure 18 This is a schematic diagram of the structure of the first swing arm provided in the embodiment of this application;

[0071] Figure 19 yes Figure 18 Another structural diagram from a different perspective;

[0072] Figure 20 This is an exploded view of the first swing arm provided in the embodiments of this application;

[0073] Figure 21 This is another partial structural schematic diagram of the rotating shaft mechanism in the unfolded state provided in the embodiments of this application;

[0074] Figure 22 yes Figure 21 A magnified schematic diagram of the local structure at point F;

[0075] Figure 23 This is a schematic diagram of the structure of the second swing arm provided in the embodiment of this application;

[0076] Figure 24 This is a partial structural diagram of the rotating shaft mechanism in a folded state provided in this embodiment;

[0077] Figure 25 yes Figure 24 A magnified schematic diagram of the local structure at point G;

[0078] Figure 26 This is a schematic diagram of the rotatable connection between the second swing arm and the connecting member provided in the embodiments of this application;

[0079] Figure 27 yes Figure 24 A magnified schematic diagram of the local structure at point H;

[0080] Figure 28 This is a schematic diagram of the motion principle of the rotating shaft mechanism in the embodiments of this application;

[0081] Figure 29 This is a simulation diagram of an electronic device in a folded state being impacted by a bump or drop in an embodiment of this application.

[0082] The meanings of the various symbols in the attached icons are as follows:

[0083] 10. Equipment base; 11. Equipment connecting block; 12. Equipment door panel; 13. First equipment swing arm; 14. Second equipment swing arm; 15. Display screen;

[0084] 100. Rotating shaft mechanism; 101. Base; 102. Door panel; 103. First swing arm; 104. Second swing arm; 105. Abutting part; 106. First stop part; 107. Second stop part; 108. First pin hole; 109. First pin shaft; 110. Accommodation space; 111. Inner side; 112. Outer side; 113. First stop surface; 114. Second stop surface; 115. Shaft cover; 116. Middle beam; 117. Support plate; 118. Preset gap; 119. First slide groove; 120. First sliding part; 121. Blind end; 122. Open end; 123. First plate body; 124. Limiting plate; 125. Middle part; 126. Shaft cylinder part; 127. First sliding part; 128. Second sliding part; 129. First mating surface; 130. Second mating surface; 131. Third 132. Mating surface; 133. Second pin; 134. Second pin hole; 135. Cam structure; 136. First helical surface; 137. Clearance groove; 138. First split part; 139. Second split part; 140. Limiting protrusion; 141. Limiting groove; 142. First cam block; 143. Second cam block; 144. Sliding block; 145. Guide rail; 146. First arc-shaped slide groove; 147. First arc-shaped part; 148. Second arc-shaped part; 149. Second arc-shaped slide groove; 150. Strip-shaped through hole; 151. Third pin; 152. Third pin hole; 153. Fourth pin hole; 154. Fourth pin; 155. Third arc-shaped part; 156. Third arc-shaped slide groove; 157. Module structure; 158. Connector; 159. Elastic element; 160. Second helical surface;

[0085] 200. Display screen; 201. First part; 202. Second part; 203. Foldable part;

[0086] 301, First subshell; 302, Second subshell. Detailed Implementation

[0087] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0088] It should be understood that "multiple" as mentioned in this application refers to two or more. In the description of this application, unless otherwise stated, " / " indicates "or," for example, A / B can mean A or B; "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist, for example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, to facilitate a clear description of the technical solutions of this application, the terms "first," "second," etc., are used to distinguish identical or similar items with essentially the same function and effect. Those skilled in the art will understand that the terms "first," "second," etc., do not limit the quantity or execution order, and that "first," "second," etc., do not necessarily imply differences.

[0089] Please see Figures 1 to 3 , Figure 1 This is a schematic diagram of the electronic device provided in the embodiment of this application in its unfolded state. Figure 2 This is a schematic diagram of the electronic device provided in the embodiments of this application in a semi-deployed state. Figure 3 This is a schematic diagram of the structure of the electronic device provided in the embodiment of this application in a folded state.

[0090] In one or more embodiments, this application provides an electronic device, which may be a foldable electronic device. The electronic device includes a housing and a pivot mechanism 100. The housing includes a first sub-housing 301 and a second sub-housing 302, which are respectively connected to the pivot mechanism 100. The first sub-housing 301 and the second sub-housing 302 are rotatable relative to each other through the pivot mechanism 100. Exemplary electronic devices may be mobile phones, tablet computers, laptops, or e-readers.

[0091] In this embodiment, taking a mobile phone as an example, the electronic device further includes a display screen 200, which can be a flexible display screen. The display screen 200 is connected to a first sub-shell 301 and a second sub-shell 302. The first sub-shell 301 and the second sub-shell 302 can include the mid-frame of the mobile phone.

[0092] For ease of description in the embodiments below, an XYZ Cartesian coordinate system is established for the electronic device in its unfolded state. The length direction of the electronic device is defined to be parallel to the X-axis, the width direction to be parallel to the Y-axis, and the thickness direction to be parallel to the Z-axis. It should be understood that the coordinate system settings of the electronic device can be flexibly set according to actual needs, and no specific limitations are made here.

[0093] See Figure 1 and Figure 2 As shown, Figure 1The unfolding angle α of the foldable electronic device shown is 180 degrees. Figure 3 The unfolding angle β of the foldable electronic device shown is 90 degrees. The state of the electronic device is the same as the state of the hinge mechanism 100, that is, when the foldable electronic device is in the folded state, the hinge mechanism 100 is also in the folded state; when the foldable electronic device is in the semi-unfolded state, the hinge mechanism 100 is also in the semi-unfolded state; when the foldable electronic device is in the unfolded state, the hinge mechanism 100 is also in the unfolded state.

[0094] It should be noted that the angles illustrated in the embodiments of this application are allowed to have slight deviations. For example, Figure 1 The unfolding angle α of the foldable electronic device shown is 180 degrees. This means that α can be 180 degrees, or approximately 180 degrees, such as 170 degrees, 175 degrees, 185 degrees, and 190 degrees. Figure 2 The unfolding angle β of the foldable electronic device shown is 90 degrees, meaning that β can be 90 degrees, or approximately 90 degrees, such as 80 degrees, 85 degrees, 95 degrees, or 100 degrees. The angles illustrated in the following text can be understood in the same way.

[0095] Please combine Figure 1 and Figure 2 As shown, the first sub-shell 301 and the second sub-shell 302 are respectively mounted on both sides of the rotating shaft mechanism 100. The display screen 200 includes a first part 201, a second part 202, and a foldable part 203. The foldable part 203 is located between the first part 201 and the second part 202, and the foldable part 203 can be bent around an axis parallel to the AA direction. In this embodiment, the display screen 200 adopts a flexible display screen, such as an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode (MOLED) display screen, a micro organic light-emitting diode (MicroOLED) display screen, a quantum dot light-emitting diode (QLED) display screen, etc.

[0096] The foldable electronic device folds by bringing the first sub-shell 301 and the second sub-shell 302 closer together. When the foldable electronic device is in the folded state, the foldable portion 203 of the display 200 bends, and the first portion 201 and the second portion 202 are positioned opposite each other. At this time, the display 200 is located between the first sub-shell 301 and the second sub-shell 302.

[0097] Please refer to the following: Figure 2 The first sub-shell 301 and the second sub-shell 302 rotate relative to each other via the pivot mechanism 100. By bringing the first sub-shell 301 and the second sub-shell 302 closer together, the display screen 200 gradually folds, causing the foldable electronic device to move from an unfolded state to a semi-unfolded state. When the foldable electronic device is in the semi-unfolded state, the first sub-shell 301 and the second sub-shell 302 unfold to an angle of β, and the first part 201 and the second part 202 fold relative to each other, causing the foldable part 203 to fold. At this time, the angle between the first part 201 and the second part 202 is β.

[0098] Please combine Figure 2 and Figure 3 As shown, the first sub-shell 301 and the second sub-shell 302 rotate relative to each other through the pivot mechanism 100. The relative proximity of the first sub-shell 301 and the second sub-shell 302 causes the display screen 200 to fold further until the foldable electronic device is completely folded.

[0099] When the electronic device is in a flattened state, the angle between the first sub-shell 301 and the second sub-shell 302 is α. The foldable portion 203 unfolds, and the first portion 201 and the second portion 202 unfold relative to each other. At this time, the angles between the first portion 201, the second portion 202, and the foldable portion 203 are also α, giving the display screen 200 a large display area, enabling a large-screen display for the foldable electronic device and improving the user experience.

[0100] It should be noted that both included angle α and included angle β are the included angles between the first sub-shell 301 and the second sub-shell 302. These are used only to distinguish the different angles between the first sub-shell 301 and the second sub-shell 302 in different states of the foldable electronic device. Specifically, included angle α refers to the angle between the first sub-shell 301 and the second sub-shell 302 when the foldable electronic device is in its unfolded state; included angle β refers to the angle between the first sub-shell 301 and the second sub-shell 302 when the foldable electronic device is in its semi-unfolded state.

[0101] In the embodiments of this application, see Figures 1 to 3As shown, the phone can be an inward-folding screen phone. When folded, the display screen 200 is hidden, while the first sub-shell 301 and the second sub-shell 302 are exposed. In this way, the display screen 200 is protected by the first sub-shell 301 and the second sub-shell 302. Of course, it is understandable that the phone can also be an outward-folding screen phone, in which the display screen is exposed when folded.

[0102] Figure 4 This is a sectional view of a rotating shaft mechanism in related technologies. Figure 5 This is a schematic diagram of the motion principle of a rotating shaft mechanism in related technologies; combined with Figure 4 and Figure 5 As shown, the rotating mechanism includes a device base 10, a device connecting block 11, a device door panel, a first device swing arm 13, and a second device swing arm 14. The second device swing arm 14, the first device swing arm 13, the device connecting block 11, and the device base 10 form a four-bar linkage, constituting a rotation module to control the movement trajectory of the electronic device's housing (such as the mid-frame). The device door panel engages with the second device swing arm 14 at a high pair, and the device door panel engages with the device connecting block 11 at a sliding pair; these three components form a pressure plate module to press the electronic device's display screen 15 into a teardrop shape. The device connecting block is used for fixed connection to the device housing, and the first device swing arm 13 is slidably connected to the device connecting block 11; see [reference needed]. Figure 5 As shown, according to the formula for calculating the degrees of freedom, the degrees of freedom of the rotating shaft mechanism are: 4×3-(2×5+1)=1. Figure 6 This is a simulation diagram of an electronic device in a folded state that has not been bumped or dropped in the relevant technology. See [link / reference]. Figure 6 As shown, the display screen 15 is in a normal water droplet state at this time; Figure 7 This is a simulation diagram of an electronic device in a folded state being impacted by a bump or drop, combined with 6 and Figure 7 As shown, when the rotating shaft mechanism in the folded state is bumped or dropped, the force on the rotating shaft mechanism is concentrated at the impact point on the base during the bump or drop. The equipment housing (such as the middle frame) will, due to inertia, cause the equipment connecting block 11 to slide down the slide rail. Figure 7 The middle device connecting block 11 and the first device swing arm 13 slide relative to each other, causing the first device swing arm 13 to intrude more into the groove of the device connecting block 11, thereby squeezing the display screen 15. The display screen 15 has changed from its normal water droplet state (e.g., Figure 6 The state shown) produced deformities (such as Figure 7 (as shown in the image), which may cause the display screen 15 to malfunction or delaminate; in addition, when an impact occurs during a bump or drop, the relative sliding between the device connecting block 11 and the first device swing arm 13 may also cause the components in the rotating shaft mechanism to break.

[0103] To address these issues, this application also provides a rotating shaft mechanism 100. The rotating shaft mechanism 100 provided in this application embodiment is described in detail below.

[0104] Figure 8 This is a partial structural diagram of the rotating shaft mechanism 100 in the unfolded state according to an embodiment of this application. See also... Figure 8 As shown, in one or more embodiments, the pivot mechanism 100 includes a base 101, a door panel 102, a first swing arm 103, and a connector 158; the first swing arm 103 is rotatable relative to the base 101 between an unfolded and a folded position; the first swing arm 103 is movably connected to the connector 158.

[0105] For example, a first swing arm 103 is rotatably connected to a base 101. Multiple first swing arms 103 are respectively provided on opposite sides of the base 101 along its length direction, and the length direction of the base 101 is parallel to the length direction of the rotating shaft mechanism 100. The rotating shaft mechanism 100 also includes a second swing arm 104, which is rotatably connected to the base 101. Multiple second swing arms 104 are respectively provided on opposite sides of the base 101 along its length direction. On one side of the base 101 along its length direction, at least one first swing arm 103 is provided between two adjacent second swing arms 104. Connectors 158 are respectively fixed to the first sub-shell and the second sub-shell, thereby connecting the first sub-shell and the second sub-shell via the rotating shaft mechanism 100. The connector 158 on the first sub-shell can be fixed to the first sub-shell by screws, rivets, or welding; the connector 158 on the second sub-shell can be fixed to the second sub-shell by screws, rivets, or welding. There can be two door panels 102, with the two door panels 102 located on opposite sides of the base 101 along its length. Figure 8 Only one door panel 102 is shown. Along the length of the pivot mechanism 100, the pivot mechanism 100 may include multiple module structures 157, each module structure 157 including two oppositely arranged first swing arms 103 and two oppositely arranged second swing arms 104; the number of module structures 157 may be two, three, four or five, etc., and this application embodiment does not make a specific limitation.

[0106] It should be noted that in some other possible embodiments, the connector 158 on the first sub-shell can also be integrally connected to the first sub-shell using an integral molding process, and the connector 158 on the second sub-shell can also be integrally connected to the second sub-shell using an integral molding process.

[0107] Figure 9 This is a cross-sectional view of the rotating shaft mechanism 100 in the folded state provided in this application at the first swing arm 103, see [link / reference]. Figure 9As shown in this embodiment, the rotating shaft mechanism 100 further includes an abutment member 105, which is movably connected to the first swing arm 103. The abutment member 105 has a first stop portion 106. The door panel 102 is movably connected to the abutment member 105. During the rotation of the first swing arm 103 relative to the base 101, the first swing arm 103 can drive the abutment member 105 to move, so that the abutment member 105 drives the door panel 102 to rotate relative to the base 101. The connecting member 158 is provided with a second stop portion 107. When the first swing arm 103 is in the folded position, the first stop portion 106 and the second stop portion 107 are arranged opposite to each other, and the second stop portion 107 can abut against the first stop portion 106. In at least one embodiment, when the pivot mechanism 100 is impacted by a bump or drop, the abutment 105 is used to stop the movement of the connector 158 relative to the first swing arm 103. The abutment 105 is movably connected to the first swing arm 103, and the door panel 102 is movably connected to the abutment 105. This allows the abutment 105 to control the movement of the door panel 102, thereby improving the accuracy of controlling the movement of the door panel 102. Furthermore, the first swing arm 103 can be used to drive the abutment 105, so that when the first swing arm 103 is in the folded position, the first stop portion 106 on the abutment 105 and the second stop portion 107 on the connector 158 cooperate. When the pivot mechanism 100 is set in a relative configuration, if it is impacted by a bump or drop, the base 101 will transmit the force to the swing arm, which will then transmit the force to the abutment 105. After the first stop 106 and the second stop 107 abut against each other, the abutment 105 will then transmit the force to the connector 158. This will prevent relative movement between the first swing arm 103 and the connector 158, reduce the relative movement between them, improve the reliability and structural stability of the pivot mechanism 100, and consequently reduce or avoid the possibility of squeezing the display screen of the electronic device, thus protecting the display screen and ensuring its normal function.

[0108] See Figure 9 As shown, in some embodiments, the abutment 105 and the first swing arm 103 are connected by a low-pair connection; the door panel 102 and the abutment 105 are connected by a high-pair connection. Using a low-pair connection effectively transmits loads, resulting in a more uniform force distribution and reducing the risk of fatigue and damage at the connection between the abutment 105 and the first swing arm 103. Furthermore, the low-pair connection makes the design and implementation of the rotating shaft mechanism 100 more intuitive, facilitating operation and adjustment. Using a high-pair connection allows for more flexible control of the door panel 102.

[0109] In some embodiments, the rotating shaft mechanism 100 includes a first pin 109, and an abutment member 105 is rotatably connected to a first swing arm 103. One of the abutment member 105 and the first swing arm 103 is provided with a first pin hole 108, and the other is provided with a first pin 109, which is inserted into the first pin hole 108. This rotatable connection between the abutment member 105 and the first swing arm 103 via the first pin 109 and the first pin hole 108 achieves a low-pair connection, allowing the first swing arm 103 to more easily control the movement of the abutment member 105. Furthermore, the design of the first pin 109 being inserted into the first pin hole 108 effectively transmits loads and reduces localized load concentration. Moreover, the fit between the first pin 109 and the first pin hole 108 facilitates assembly and disassembly. For example, see [link to example]. Figure 9 As shown, when the pivot mechanism 100 is in the folded state, it forms a receiving space 110 for accommodating the foldable portion 203 of the display screen. The cross-section of the receiving space 110 can be teardrop-shaped. The side of the first swing arm 103 facing the receiving space 110 is the inner side 111, and the other side of the first swing arm 103 facing away from the receiving space is the outer side 112. The first pin hole 108 is provided on the abutment member 105, and the first pin 109 is provided on the first swing arm 103. This reduces the need for holes in the first swing arm 103, thereby ensuring the strength of the first swing arm 103. In addition, the abutment 105 can rotate axially around the first pin 109, which facilitates the contact between the first stop 106 on the abutment 105 and the second stop 107 on the connector 158 when the base 101 of the rotating shaft mechanism 100 is impacted by a bump or a fall, thereby stopping the movement of the connector 158 relative to the first swing arm 103; and during the normal use of the electronic device, when the electronic device is switched between the unfolded position and the folded position, the rotation of the first swing arm 103 relative to the base 101 can drive the abutment 105 to move.

[0110] It should be noted that in some other possible implementations, the first pin hole 108 may also be provided on the first rocker arm 103, and the first pin shaft 109 may be provided on the first rocker arm 103.

[0111] See Figure 9 As shown, in some embodiments, the first stop portion 106 includes a first stop surface 113, and the second stop portion 107 includes a second stop surface 114. The first stop surface 113 can abut against the second stop surface 114. This abutment between the first stop surface 113 and the second stop surface 114 increases the contact area and improves the effectiveness of the connection between the connector 158 and the abutment member 105. For example, when the first stop surface 113 and the second stop surface 114 abut against each other, they can be in rigid contact.

[0112] See Figure 9 As shown, in some embodiments, when the first swing arm 103 is in the folded position, the first stop surface 113 and the second stop surface 114 are arranged parallel to each other. This parallel arrangement maximizes the contact area when they abut, thereby improving the effectiveness of the connection between the connector 158 and the abutment 105. For example, the first stop surface 113 and the second stop surface 114 are both planar. This planar arrangement increases the contact area between the first stop portion 106 and the second stop portion 107, thus improving the effectiveness of the connection between the connector 158 and the abutment 105. It should be noted that in some other possible embodiments, one of the first stop surface 113 and the second stop surface 114 can be a concave surface, and the other can be a convex surface. The shape of the convex surface matches the shape of the concave surface, and the convex surface contacts the concave surface to achieve the abutment between the abutment 105 and the connector 158.

[0113] See Figure 9 As shown, in some embodiments, when the first swing arm 103 is in the folded position, the first stop surface 113 is perpendicular to the thickness direction of the base 101. This reduces or prevents slippage between the first stop surface 113 and the second stop surface 114 when they abut, improving the effectiveness of the abutment between the first stop portion 106 and the second stop portion 107, thereby protecting the display screen of the electronic device. For example, the thickness direction of the base 101 is parallel to the Z-axis direction, ensuring that the first stop portion 106 and the second stop portion 107 interact when the rotating shaft mechanism 100 of the electronic device is impacted, thus protecting the display screen.

[0114] See Figure 9 As shown, the base 101 includes a shaft cover 115, a middle beam 116, and a support plate 117. In use, the shaft cover 115 is exposed and covers the middle beam 116. The shaft cover 115 and the middle beam 116 can be fixedly connected by a snap-fit ​​or screws. The support plate 117 can also be fixedly connected to the middle beam 116 by a snap-fit ​​or screws. For example, the first swing arm 103 is rotatably connected to the middle beam 116.

[0115] See Figure 9 As shown, the rotating shaft mechanism 100 also includes a second pin 133, which is mounted on the base 101. The first swing arm 103 is rotatably connected to the base 101 via the second pin 133. This effectively transmits loads, resulting in a more uniform force distribution and reducing the risk of fatigue and damage at the connection between the base 101 and the first swing arm 103, thus improving the service life of the rotating shaft mechanism 100. For example, the second pin 133 is mounted on the center beam 116.

[0116] Figure 10 This is a cross-sectional view of the pivot mechanism 100 at a certain position between the unfolded position and the folded position in the embodiment of this application, at the first swing arm 103, in conjunction with... Figure 9 and Figure 10 As shown, a preset gap 118 can be provided between the first stop 106 and the second stop 107. This ensures that, under normal use, when the first swing arm 103 rotates between the unfolded and folded positions relative to the base 101, there will be no interference between the abutment 105 and the connector 158, i.e., the abutment 105 will not contact the connector 158, thereby ensuring the smooth unfolding or folding of the electronic device. It should be noted that, although there is a preset gap 118 between the first stop 106 and the second stop 107, when the base 101 of the rotating shaft mechanism 100 collides, the connector 158 moves relative to the first swing arm 103, and the preset gap 118 will decrease, causing the first stop 106 to contact the second stop 107. This still helps to ensure the normal functioning of the display screen.

[0117] Figure 11 This is a cross-sectional view of the pivot mechanism 100 in a folded state provided in this application at another position of the first swing arm 103, see [link / reference]. Figure 11As shown, in some embodiments, the door panel 102 is slidably connected to the abutment member 105. The door panel 102 is provided with a first sliding groove 119, and the abutment member 105 includes a first sliding member 120, which is slidably disposed in the first sliding groove 119. By utilizing the sliding connection between the door panel 102 and the abutment member 105, and the high-pair connection between the two, it is beneficial to control the door panel 102. The sliding design of the first sliding member 120 in the first sliding groove 119 can achieve smooth sliding movement, reduce frictional resistance, and thus improve the smoothness of movement and response speed. In addition, the sliding connection provides a relatively large range of motion, enabling the door panel 102 to move flexibly between different positions. For example, one end of the first slide groove 119 along its length is a blind end 121, and the other end is an open end 122. When the rotating shaft mechanism 100 is in the folded position, the first sliding member 120 can be located at the blind end 121 of the first slide groove 119. When the first swing arm 103 moves from the folded position to the unfolded position, it drives the abutment member 105 to move, causing the first sliding member 120 to move from the blind end 121 towards the open end 122. When the first swing arm 103 is in the unfolded position, the first sliding member 120 is not at the blind end 121, but is located at a set position away from the blind end 121. It can be understood that during normal use of the rotating shaft mechanism 100... During the process of the pivot mechanism 100 changing from the unfolded state to the folded state, the relative movement between the abutment 105 and the door panel 102, when the first sliding member 120 is located at the blind end 121, limits the position of the door panel 102 in the folded state of the pivot mechanism 100. In addition, it also makes the position of the abutment 105 reach the preset position, that is, the first stop 106 of the abutment 105 and the second stop 107 on the connector 158 can be aligned again, ensuring that the first stop 106 of the abutment 105 can abut against the second stop 107 of the connector 158 when the pivot mechanism 100 is impacted.

[0118] See Figure 11As shown, in some embodiments, the first slider 120 has a cylindrical structure. This cylindrical shape facilitates manufacturing and provides good guiding performance, ensuring stable movement of the first slider 120 within the groove and preventing jamming or deviation. The first groove 119 is linear, allowing the first slider 120 to move freely within a certain range to meet design requirements. The combination of the cylindrical first slider 120 and the linear first groove 119 also reduces the contact area, lowers friction, improves movement efficiency, and reduces energy consumption. It should be noted that in some other possible embodiments, the first groove 119 can also be designed in other types. For example, the length extension direction of the first groove 119 can be curved, such as an arc; or the first groove 119 can include linear sub-grooves and curved sub-grooves connected in series.

[0119] Figure 12 This is another partial structural schematic diagram of the rotating shaft mechanism 100 in the unfolded state provided in the embodiments of this application. Figure 13 The figure is a magnified view of a portion of point D in diagram 12, combined with... Figure 12 and Figure 13 As shown, the door panel 102 includes a first plate 123 and a limiting plate 124. The limiting plate 124 is fixedly connected to the first plate 123. The limiting plate 124 cooperates with the first plate 123 to form a first sliding groove 119. At least a portion of the first sliding member 120 extends into the first sliding groove 119 so that the first sliding member 120 can slide along the length extension direction of the first sliding groove 119.

[0120] Figure 14 This is a schematic diagram of the structure of the abutment member 105 provided in the embodiment of this application. See also: Figure 14 As shown, the abutment 105 also includes a middle portion 125 and a shaft sleeve portion 126. The first sliding member 120 and the shaft sleeve portion 126 are fixedly connected to the middle portion 125. The middle portion 125 can be wedge-shaped to facilitate avoidance, for example, avoiding the foldable portion 203 of the display screen. The first pin hole 108 is formed on the shaft sleeve portion 126, thereby enabling the abutment 105 to rotate relative to the first swing arm 103. The first stop portion 106 is located on the middle portion 125. For example, the first stop surface 113 is located on the middle portion 125.

[0121] Figure 15 This is another partial structural schematic diagram of the rotating shaft mechanism 100 in the unfolded state provided in the embodiments of this application. Figure 16 yes Figure 15 A magnified view of a portion of point E in the middle; combined with Figure 15 and Figure 16As shown, in some embodiments, the first swing arm 103 and the connector 158 are connected by a low pair. This low pair connection can effectively transfer the load, making the force distribution more uniform, reducing the risk of fatigue and damage at the connection between the connector 158 and the first swing arm 103, and helping to improve the service life of the rotating shaft mechanism 100.

[0122] Combination Figure 15 and Figure 16 As shown, in some embodiments, the first swing arm 103 is slidably connected to the connecting member 158. The connecting member 158 has a first sliding portion 127, and the first swing arm 103 has a second sliding portion 128. The first sliding portion 127 and the second sliding portion 128 are slidably engaged. This slidable connection between the first swing arm 103 and the connecting member 158, and the low-pair connection between them, effectively transmits loads, resulting in a more uniform force distribution. This reduces the risk of fatigue and damage at the connection between the connecting member 158 and the first swing arm 103, and helps to extend the service life of the rotating shaft mechanism 100.

[0123] Combination Figure 15 and Figure 16 As shown, where, Figure 16This is a schematic diagram of the structure of the first swing arm 103 cooperating with the connecting member 158. In some embodiments, the first sliding part 127 includes a first mating surface 129 and a second mating surface 130; the second sliding part 128 has a third mating surface 131 and a fourth mating surface 132, which are located on opposite sides of the first swing arm 103. The first mating surface 129 contacts the third mating surface 131, and the second mating surface 130 contacts the fourth mating surface 132. The first mating surface 129 and the second mating surface 130 are spaced apart along the length of the connecting member 158, and the third mating surface 131 and the fourth mating surface 132 are also spaced apart along the length of the connecting member 158. The length of the connecting member 158 is parallel to the length of the rotating shaft mechanism 100. By adopting a spaced-distribution design, precise control of the transmission between the first swing arm 103 and the connecting member 158 can be achieved. For example, the third mating surface 131 is located on the outer side 112 of the first swing arm 103, and the fourth mating surface 132 is located on the inner side 111 of the first swing arm 103; the first mating surface 129, the second mating surface 130, the third mating surface 131, and the fourth mating surface 132 are all parallel to the length direction of the rotating shaft mechanism 100; the first mating surface 129 and the second mating surface 130 can both be curved surfaces, such as arc surfaces, and correspondingly, the third mating surface 131 and the fourth mating surface 132 can also both be curved surfaces, such as arc surfaces; the length direction of the rotating shaft mechanism 100 is parallel to the Y-axis direction. It is understood that in some other possible embodiments, the first mating surface 129 and the second mating surface 130 can also be designed as planes as needed, and correspondingly, the third mating surface 131 and the fourth mating surface 132 can also be designed as planes.

[0124] Figure 17 This is a schematic diagram of a configuration where the first swing arm 103 and the connector 158 cooperate, as provided in an embodiment of this application; see also Figure 17As shown, in some embodiments, the first sliding part 127 includes a first mating surface 129 and a second mating surface 130, and the second sliding part 128 has a third mating surface 131 and a fourth mating surface 132. The third mating surface 131 and the fourth mating surface 132 are located on opposite sides of the first swing arm 103. The first mating surface 129 is in contact with the third mating surface 131, and the second mating surface 130 is in contact with the fourth mating surface 132. The orthographic projection of the first mating surface 129 in the preset plane and the orthographic projection of the second mating surface 130 in the preset plane at least partially overlap. The orthographic projection of the third mating surface 131 in the preset plane and the orthographic projection of the fourth mating surface 132 in the preset plane at least partially overlap. The preset plane is parallel to the length direction of the connector 158, and the length direction of the connector 158 is parallel to the length direction of the rotating shaft mechanism 100. This facilitates the processing and manufacturing of the connector 158 and the first swing arm 103, and helps to improve production efficiency and reduce assembly errors. For example, the direction from the first mating surface 129 to the second mating surface 130 is perpendicular to a preset plane. The third mating surface 131 and the fourth mating surface 132 mate to form a second sliding groove, so that a portion of the structure of the first swing arm 103 extends into the second sliding groove to achieve relative sliding between the first swing arm 103 and the connecting member 158. The first mating surface 129, the second mating surface 130, the third mating surface 131, and the fourth mating surface 132 are parallel to the length direction of the rotating shaft mechanism 100. The third mating surface 131 is located on the outer side 112 of the first swing arm 103, and the fourth mating surface 132 is located on the inner side 111 of the first swing arm 103. The first mating surface 129 and the second mating surface 130 can both be curved surfaces, such as arc surfaces. Correspondingly, the third mating surface 131 and the fourth mating surface 132 can also both be curved surfaces, such as arc surfaces. The length direction of the rotating shaft mechanism 100 is parallel to the Y-axis direction. It is understood that in some other possible implementations, the first mating surface 129 and the second mating surface 130 may also be designed as planes as needed, and correspondingly, the third mating surface 131 and the fourth mating surface 132 may also be designed as planes.

[0125] Figure 18 This is a schematic diagram of the structure of the first swing arm 103 provided in the embodiments of this application. Figure 19 yes Figure 18 Another structural diagram from the perspective of which, Figure 18 The image also shows an abutment 105 mounted on the first swing arm 103, in conjunction with... Figure 18 and Figure 19 As shown, in some embodiments, the first swing arm 103 has a second pin 133 for the base 101 (see Figure 133). Figure 9As shown, the second pin 133 passes through the second pin hole 134, thus achieving a rotatable connection between the first swing arm 103 and the base 101. This low-pair connection between the first swing arm 103 and the base 101 effectively transmits loads, resulting in a more uniform force distribution and reducing the risk of fatigue and damage at the connection point between the base 101 and the first swing arm 103, thereby extending the service life of the rotating shaft mechanism 100. For example, the axial direction of the second pin hole 134 is parallel to the axial direction of the rotating shaft mechanism 100.

[0126] In some embodiments, the rotating shaft mechanism 100 further includes a damping synchronization mechanism to enable the first swing arm 103 to have a hovering effect when rotating relative to the base 101, and to achieve synchronous movement between two opposing first swing arms 103 of the rotating shaft mechanism 100. The two opposing first swing arms 103 are located on both sides of the centerline of the base 101, and the centerline of the base 101 is parallel to the length direction of the rotating shaft mechanism 100. Figure 18 and Figure 19 As shown, exemplarily, the damping synchronization mechanism includes a cam structure 135; the first swing arm 103 has cam structures 135 at both ends along the length of the rotating shaft mechanism 100, and the cam structures 135 are used to achieve a hovering effect of the first swing arm 103 when it rotates relative to the base 101. Exemplarily, the first swing arm 103 also has a first helical surface 136. It is understood that one of the two opposing first swing arms 103 may also have other structures to cooperate with other components of the rotating shaft mechanism 100, while the other first swing arm 103 may not have such structures. The first swing arm 103 has a clearance groove 137, and the abutment 105 is installed in the clearance groove 137. The first pin 109 and the first swing arm 103 are separate structures. The first swing arm 103 may have a mounting hole (not shown). The first pin 109 is fixed in the mounting hole and is located in the clearance groove 137, so that the abutment 105 can rotate around the axis of the first pin 109.

[0127] Figure 20 This is an exploded view of the first swing arm 103 provided in the embodiments of this application; combined with Figure 19 and Figure 20As shown, the first swing arm 103 includes a first split 138 and a second split 139, which are detachably connected. The first split 138 is provided with a cam structure 135 and a first helical surface 136, and the second split 139 is also provided with a cam structure 135 and a first helical surface 136. Disassembling the first swing arm 103 into two parts facilitates the assembly of the rotating shaft mechanism 100. For example, the first split 138 is provided with a limiting protrusion 140, and the second split 139 is provided with a limiting groove 141. The limiting protrusion 140 is inserted into the limiting groove 141 to achieve a detachable connection between the first split 138 and the second split 139. The number of limiting grooves 141 can be one or more, and correspondingly, the number of limiting protrusions 140 can be one or more, with multiple limiting grooves 141 corresponding to multiple limiting protrusions 140. The abutment 105 is installed on the first split 138. The first pin 109 and the first split 138 are a split structure, and the mounting hole is located on the first split 138.

[0128] Figure 21 This is another partial structural schematic diagram of the rotating shaft mechanism 100 in the unfolded state provided in the embodiments of this application; Figure 22 yes Figure 21 A magnified schematic diagram of the local structure at point F, combined with... Figure 21 and Figure 22As shown, in some embodiments, the damping synchronization mechanism further includes a first cam block 142, a second cam block 143, an elastic element 159, and a sliding block 144. The cam on the first cam block 142 engages with a cam structure 135 of the first swing arm 103, and the cam on the second cam block 143 engages with another cam structure 135 of the first swing arm 103. The second cam block 143 abuts against the elastic element 159. When the first swing arm 103 rotates relative to the base 101, the second cam block 143 can move along the length direction of the rotating shaft mechanism 100 to compress the elastic element 159. The elastic element 159, in turn, acts on the second cam block 143, thereby providing a damping force that hinders the rotation of the first swing arm 103 relative to the base 101, so as to achieve the hovering effect of the first swing arm 103. The sliding block 144 is slidably disposed on the base 101, and the sliding block 144 is provided with a second helical surface 160 that engages with the first helical surface 136. In the two opposing first swing arms 103, when one of the first swing arms 103 rotates relative to the base 101, the first helical surface 136 and the second helical surface 160 interact, causing the sliding block 144 to move along the length direction of the rotating shaft mechanism 100. The movement of the sliding block 144, in turn, forces the other first swing arm 103 to rotate, thereby achieving synchronous movement between the two first swing arms 103. For example, the first cam block 142 remains relatively fixed to the base 101; the sliding block 144 may be provided with a guide groove, and the base 101 has a guide rail 145. For example, the guide rail 145 is located on the middle beam 116 of the base 101, and the guide rail 145 cooperates with the guide groove to enable the sliding block 144 to move along the length direction of the rotating shaft mechanism 100; the elastic element 159 may be a spring.

[0129] Figure 23 This is a schematic diagram of the structure of the second swing arm 104 provided in the embodiments of this application. Figure 24 This is a partial structural diagram of the rotating shaft mechanism 100 in a folded state provided in this embodiment; combined with Figure 23 and Figure 24 As shown, in some embodiments, the base 101 has a second arcuate groove 149, and the second swing arm 104 has a second arcuate portion 148, which extends into the second arcuate groove 149 so that the second swing arm 104 is rotatably connected to the base 101, and the second swing arm 104 can also slide relative to the base 101.

[0130] In some embodiments, the second swing arm 104 is connected to the door panel 102 via a high-pair connection, and the second swing arm 104 is rotatably connected to the connector 158, which allows for better control of the movement of the door panel 102. Figure 25 yes Figure 24 See the magnified structural diagram at point G in the middle. Figure 25As shown, in some embodiments, the connector 158 has a first arc-shaped groove 146, and the second swing arm 104 has a first arc-shaped portion 147. The first arc-shaped portion 147 extends into the first arc-shaped groove 146, so that the second swing arm 104 is rotatably connected to the connector 158. This can effectively transfer the load, make the force distribution more uniform, reduce the fatigue and damage risk at the connection between the second swing arm 104 and the connector 158, and help improve the service life of the rotating shaft mechanism 100. In addition, since in the embodiments of this application, in the rotating shaft mechanism... Along the length of the structure 100, an abutment 105 is provided on the first swing arm 103 between two adjacent second swing arms 104, so that the abutment 105 also participates in controlling the movement of the door panel 102. Compared with the second device swing arm control of the door panel 102 in the related art, the embodiment of this application reduces the span of the control point of the door panel 102 by cooperating with the abutment 105 and the second swing arm 104, making the control effect of the door panel 102 more stable, and the door panel 102 has more support points in the unfolded state, which improves the reliability of the pivot mechanism 100.

[0131] See Figure 25 As shown, in some embodiments, the door panel 102 has a strip-shaped through hole 150, and a fourth pin 154 is mounted on the second swing arm 104, the fourth pin 154 passing through the strip-shaped through hole 150. In this way, the second swing arm 104 and the door panel 102 are connected by the fourth pin 154 and the strip-shaped through hole 150, thus realizing a high-pair connection between the second swing arm 104 and the door panel 102; in addition, when the first swing arm 103 can drive the door panel 102 to rotate, the second swing arm 104 is then used to drive the door panel 102 to rotate, thereby improving the control accuracy of the door panel 102's movement.

[0132] Figure 26 This is a schematic diagram of the rotatable connection between the second swing arm 104 and the connecting member 158 provided in an embodiment of this application. See [link / reference] Figure 26 As shown, in some other embodiments, the rotating shaft mechanism 100 further includes a third pin 151, the connecting member 158 has a third pin hole 152, and the second swing arm 104 has a fourth pin hole 153. The third pin 151 passes through the third pin hole 152 and the fourth pin hole 153, so that the second swing arm 104 is rotatably connected to the connecting member 158. This can also effectively transmit the load, make the force distribution more uniform, reduce the fatigue and damage risk at the connection between the second swing arm 104 and the connecting member 158, and help improve the service life of the rotating shaft mechanism 100.

[0133] Figure 27 yes Figure 24 A magnified schematic diagram of the local structure at point H; see [link / reference]. Figure 27As shown, in some embodiments, the connector 158 is rotatably connected to the door panel 102, which facilitates improved accuracy in controlling the movement of the door panel 102. For example, the connector 158 has a third arcuate groove 156, and the door panel 102 has a third arcuate portion 155, which extends into the third arcuate groove 156. This provides a low-pair connection between the door panel 102 and the connector 158, allowing the connector 158 to be rotatably connected to the door panel 102, and also enabling the door panel 102 to slide relative to the connector 158.

[0134] Figure 28 This is a schematic diagram of the motion principle of the rotating shaft mechanism 100 in the embodiments of this application; see also Figure 28 As shown, the rotating shaft mechanism 100 has 5 movable components: a first swing arm 103, a second swing arm 104, abutment 105, door panel 102, and connector 158. The number of lower pair constraints is 6, and the number of higher pair constraints is 2. The higher pair is between the second swing arm 104 and the door panel 102, and between the abutment 105 and the door panel 102. According to the formula for calculating the degree of freedom, the degree of freedom of the rotating shaft mechanism 100 is 5×3-(2×6+2)=1. Thus, compared with the related technology, in this embodiment, after adding the abutment 105, the overall degree of freedom of the rotating shaft mechanism 100 remains unchanged. In other words, the overall degree of freedom of the rotating shaft mechanism 100 is not affected.

[0135] Figure 29 This is a simulation diagram of an electronic device in a folded state experiencing an impact due to a bump or drop, as described in this application embodiment. See [link / reference]. Figure 29 As shown in the embodiment of this application, when the first stop portion 106 on the abutment 105 abuts against the second stop portion 107 on the connector 158, the movement of the connector 158 relative to the first swing arm 103 can be effectively stopped, thereby better protecting the display screen 200 of the electronic device.

[0136] In the description of this application, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0137] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A rotating shaft mechanism, characterized in that, include: Base; A first swing arm, which is rotatable relative to the base between an unfolded position and a folded position; An abutment member is movably connected to the first swing arm, and the abutment member has a first stop portion; A door panel is movably connected to the abutment member. During the rotation of the first swing arm relative to the base, the first swing arm can drive the abutment member to move, so that the abutment member drives the door panel to rotate relative to the base. A connector is provided, wherein the first swing arm is movably connected to the connector, and the connector is provided with a second stop portion; When the first swing arm is in the folded position, the first stop and the second stop are disposed opposite to each other, and the second stop can abut against the first stop.

2. The rotating shaft mechanism as described in claim 1, characterized in that, The abutment is connected to the first swing arm via a low-pair connection; the door panel is connected to the abutment via a high-pair connection.

3. The rotating shaft mechanism as described in claim 2, characterized in that, The abutment is rotatably connected to the first swing arm, wherein one of the abutment and the first swing arm is provided with a first pin hole, and the other is provided with a first pin shaft, the first pin shaft being inserted into the first pin hole.

4. The rotating shaft mechanism as described in claim 2 or 3, characterized in that, The door panel is slidably connected to the abutting member, wherein the door panel is provided with a first sliding groove, and the abutting member includes a first sliding member, which is slidably disposed in the first sliding groove.

5. The rotating shaft mechanism as described in claim 4, characterized in that, The first sliding member is a cylindrical structure; the first sliding groove is a straight line.

6. The rotating shaft mechanism as described in any one of claims 1-5, characterized in that, The first stop portion includes a first stop surface, and the second stop portion includes a second stop surface, wherein the first stop surface can abut against the second stop surface.

7. The rotating shaft mechanism as described in claim 6, characterized in that, When the first swing arm is in the folded position, the first stop surface and the second stop surface are arranged parallel to each other.

8. The rotating shaft mechanism as described in claim 7, characterized in that, The first stop surface is a plane, and the second stop surface is a plane.

9. The rotating shaft mechanism as described in claim 7 or 8, characterized in that, When the first swing arm is in the folded position, the first stop surface is perpendicular to the thickness direction of the base.

10. The rotating shaft mechanism as described in any one of claims 1-6, characterized in that, The first swing arm is connected to the connecting member via a lower pair.

11. The rotating shaft mechanism as described in claim 10, characterized in that, The first swing arm is slidably connected to the connecting member, wherein the connecting member has a first sliding part, the first swing arm has a second sliding part, and the first sliding part and the second sliding part are slidably engaged.

12. The rotating shaft mechanism as described in claim 11, characterized in that, The first sliding part includes a first mating surface and a second mating surface; The second sliding part has a third mating surface and a fourth mating surface, the third mating surface and the fourth mating surface are located on opposite sides of the first swing arm, the first mating surface is in contact with the third mating surface, and the second mating surface is in contact with the fourth mating surface; The first mating surface and the second mating surface are spaced apart along the length of the connector, and the third mating surface and the fourth mating surface are spaced apart along the length of the connector. The length of the connector is parallel to the length of the rotating shaft mechanism.

13. The rotating shaft mechanism as described in claim 11, characterized in that, The first sliding part includes a first mating surface and a second mating surface, and the second sliding part has a third mating surface and a fourth mating surface. The first mating surface is in contact with the third mating surface, and the third mating surface and the fourth mating surface are located on opposite sides of the first swing arm. The second mating surface is in contact with the fourth mating surface. The orthographic projection of the first mating surface in the preset plane and the orthographic projection of the second mating surface in the preset plane at least partially overlap; The orthographic projection of the third mating surface in the preset plane and the orthographic projection of the fourth mating surface in the preset plane at least partially overlap; The preset plane is parallel to the length direction of the connector, and the length direction of the connector is parallel to the length direction of the rotating shaft mechanism.

14. The rotating shaft mechanism as described in claim 1, characterized in that, The first swing arm is rotatably connected to the base, wherein the first swing arm has a second pin hole, and the rotating shaft mechanism further includes a second pin, which is mounted on the base and passes through the second pin hole.

15. The rotating shaft mechanism as described in any one of claims 1-14, characterized in that, The rotating shaft mechanism further includes a second swing arm, which is rotatably connected to the base, is highly connected to the door panel, and is rotatably connected to the connecting member.

16. The rotating shaft mechanism as described in claim 15, characterized in that, The connector has a first arc-shaped groove, and the second swing arm has a first arc-shaped portion, the first arc-shaped portion extending into the first arc-shaped groove so that the second swing arm is rotatably connected to the connector. Alternatively, the rotating shaft mechanism may further include a third pin, the connecting member having a third pin hole, the second swing arm having a fourth pin hole, and the third pin passing through the third pin hole and the fourth pin hole, so that the second swing arm is rotatably connected to the connecting member.

17. The rotating shaft mechanism as described in claim 15, characterized in that, The base has a second arc-shaped groove, and the second swing arm has a second arc-shaped portion that extends into the second arc-shaped groove, so that the second swing arm is rotatably connected to the base. The door panel has a strip-shaped through hole, and a fourth pin is installed on the second swing arm, the fourth pin passing through the strip-shaped through hole.

18. An electronic device, characterized in that, include: The flexible display screen, the housing, and the pivot mechanism as described in any one of claims 1-17, wherein the housing includes a first sub-housing and a second sub-housing, the first sub-housing and the second sub-housing are respectively connected to the pivot mechanism, and the first sub-housing and the second sub-housing are rotatable relative to each other through the pivot mechanism; the flexible display screen is connected to the first sub-housing and the second sub-housing respectively.

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