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 rotating shaft mechanism comprises a base, a swing arm and an electric connection structure. The swing arm comprises a first connecting part, and the first connecting part is rotationally connected with the base; the electric connection structure comprises a first conductive part and a second conductive part, and the first conductive part is in movable contact with the second conductive part; wherein the first connecting part is provided with a first conductive part, the base is provided with a second conductive part, and in the process that the swing arm rotates relative to the base, the first conductive part on the first connecting part can be in contact with the second conductive part on the base. The first conductive part and the second conductive part are arranged at the rotating connection position between the swing arm and the base, so that the width of the shaft-penetrating flexible circuit board can be reduced, the space occupied by the shaft-penetrating flexible circuit board on the rotating shaft mechanism is reduced, and the structural stability of the rotating shaft mechanism is 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 continuous development of technology, foldable electronic devices, such as foldable phones, have gradually become popular. Foldable electronic devices include a hinge mechanism and a through-hinge flexible circuit board. The through-hinge flexible circuit board passes through the hinge mechanism to connect different electronic components and achieve electrical signal transmission. However, when the through-hinge flexible circuit board transmits a large number of electrical signals, its width increases. A wider flexible circuit board occupies space in the hinge mechanism, affecting its design; furthermore, the through-hinge flexible circuit board also affects the strength of the hinge mechanism. Summary of the Invention

[0003] This application provides a pivot mechanism and an electronic device to solve the technical problem in the related art that the through-shaft flexible circuit board occupies a lot of space in the pivot mechanism.

[0004] The technical solution is as follows:

[0005] The first aspect of this application provides a rotating shaft mechanism, which includes: a base, a swing arm, and an electrical connection structure; the swing arm includes a first connecting portion, which is rotatably connected to the base; the electrical connection structure includes a first conductive portion and a second conductive portion, which are in movable contact with each other; wherein, the first conductive portion is mounted on the first connecting portion, and the second conductive portion is mounted on the base, and during the rotation of the swing arm relative to the base, the first conductive portion on the first connecting portion can contact the second conductive portion on the base.

[0006] By adopting the above technical solution, a first conductive part and a second conductive part are set at the position of rotational connection between the swing arm and the base. In this way, when the swing arm rotates relative to the base, the first conductive part can remain in contact with the second conductive part, thereby realizing the transmission of electrical signals between the two relatively moving parts. This allows one, multiple, or all signals transmitted by the through-shaft flexible circuit board to be separated from the through-shaft flexible circuit board and transmitted using the first and second conductive parts. This reduces the width of the through-shaft flexible circuit board, thereby reducing the space occupied by the through-shaft flexible circuit board on the rotating shaft mechanism and ensuring the structural stability of the rotating shaft mechanism.

[0007] In some implementations, the pivot mechanism also includes a connector, and the swing arm is movably connected to the connector;

[0008] The swing arm also includes a second connecting part, and the first connecting part is fixedly connected to the second connecting part;

[0009] The second connecting part is equipped with the first conductive part, and the connector is equipped with the second conductive part;

[0010] During the movement of the swing arm relative to the connector, the first conductive part on the second connecting part can come into contact with the second conductive part on the connector.

[0011] By adopting the above technical solution, a first conductive part and a second conductive part are also provided between the swing arm and the connecting part, which further reduces the influence of the through-shaft flexible circuit board, thereby ensuring the structural stability of the rotating shaft mechanism.

[0012] In some implementations, the swing arm has a first mounting surface, a first conductive part is mounted on the first mounting surface, and the first mounting surface is perpendicular to the length direction of the rotating shaft mechanism;

[0013] The base and the connector each have a second mounting surface, and the second conductive part is mounted on the second mounting surface. The second mounting surface is perpendicular to the length direction of the rotating shaft mechanism.

[0014] By adopting the above technical solution, the first conductive part is set on the first mounting surface perpendicular to the length direction of the rotating shaft mechanism, and the second conductive part is set on the second mounting surface perpendicular to the length direction of the rotating shaft mechanism. This can reduce the impact on the thickness of the base, the thickness of the connecting parts, and the thickness of the swing arm, thereby ensuring the strength of the structure itself and meeting the design requirements.

[0015] In some implementations, the second conductive part includes an electrical contact, which includes a pin and a contact, with the pin and the contact fixedly connected, and the pin fixed to the second mounting surface; the contact is capable of elastic deformation.

[0016] By adopting the above technical solution, the electrical contact can generate elastic deformation to ensure the tightness of the contact between the first conductive part and the second conductive part, thus ensuring the normal communication of the electronic device.

[0017] In some implementations, the orthographic projection of the electrical contact in the preset plane is a fan-shaped ring, and the preset plane is perpendicular to the length direction of the rotating shaft mechanism;

[0018] The second conductive portion includes one or more electrical contacts, wherein when the second conductive portion includes multiple electrical contacts, the multiple electrical contacts are spaced apart.

[0019] By adopting the above technical solution, when the orthographic projection of the electrical contact is a fan-shaped ring, the stability of the electrical connection between the first conductive part and the second conductive part can be guaranteed during the rotation of the swing arm relative to the base. Furthermore, when multiple electrical contacts are used to transmit a single signal, the continuity and stability of the signal transmission can be ensured; when multiple electrical contacts are used to transmit different signals, the width of the through-shaft flexible circuit board can be further reduced, thereby reducing its space occupation on the rotating shaft mechanism.

[0020] In some implementations, the contact portion protrudes from the second mounting surface, and the contact portion has a contact plane that contacts the first conductive portion.

[0021] By adopting the above technical solution, the contact portion protrudes from the second mounting surface. When the first conductive portion and the second conductive portion come into contact, the contact portion can undergo elastic deformation. The contact portion increases a preload (also known as axial preload) parallel to the length direction of the rotating shaft mechanism to ensure the stability of the electrical connection between the first conductive portion and the second conductive portion. The contact portion has a contact plane, which can provide a larger contact area, reduce contact resistance, thereby ensuring the stability of the electrical connection. It can also meet the requirements of some high-current cross-axis transmission, such as the requirements of charging current cross-axis transmission.

[0022] In some implementations, the electrical contact includes two pin portions; in the electrical contact, one pin portion is connected to one end of the contact portion along its length, and the other pin portion is connected to the other end of the contact portion along its length.

[0023] By adopting the above technical solution, the dual-pin structure can better ensure good and stable contact between the first conductive part and the second conductive part during the unfolding and folding process of the rotating shaft mechanism, and can improve the reliability and service life of the electrical contact components.

[0024] In some implementations, the second mounting surface has a first recessed groove, and the pin portion is fixed in the first recessed groove;

[0025] The shape of the first recessed groove matches the shape of the orthographic projection of the electrical contact in the preset plane.

[0026] By adopting the above technical solution, the stability of the pin portion on the second mounting surface can be improved, thereby ensuring the stability of the electrical contact on the second mounting surface.

[0027] In some implementations, the second conductive part further includes an adapter plate, with electrical contacts fixed to the adapter plate, and the adapter plate fixed to the second mounting surface.

[0028] By adopting the above technical solution and using an adapter plate, the electrical contacts can be indirectly mounted on the second mounting surface. This facilitates the separate manufacturing of the second conductive part and reduces the difficulty of mounting the second conductive part on the second mounting surface.

[0029] In some implementations, the adapter board is made of an organic substrate, a ceramic substrate, or a metal substrate.

[0030] By adopting the above technical solutions, the adapter board can be made of different materials to meet the application requirements of the second conductive part when transmitting one or more signals.

[0031] In some implementations, the electrical connection structure also includes a first transmission line connected to a first conductive part on the swing arm.

[0032] By adopting the above technical solution, a first transmission line is used to facilitate signal transmission.

[0033] In some implementations, the first transmission line includes at least one first sub-line, the end of which is connected to a first conductive portion.

[0034] By adopting the above technical solution, the need to transmit one or more signals can be met.

[0035] In some implementations, the first transmission line is fixed to the surface of the swing arm;

[0036] Alternatively, the first transmission line may be embedded inside the swing arm.

[0037] By adopting the above technical solution, the first transmission line is fixed to the surface of the swing arm, which facilitates manufacturing; and the first transmission line is embedded inside the swing arm, which reduces the exposure of the first transmission line and achieves protection of the first transmission line.

[0038] In some implementations, the electrical connection structure also includes a first circuit board, on which the first transmission line is integrated; the first circuit board is mounted on the swing arm.

[0039] The first circuit board is a flexible circuit board, a rigid circuit board, or a combination of flexible and rigid circuit boards.

[0040] By adopting the above technical solution, the first transmission line is integrated onto the first circuit board. This utilizes the thinness of the first circuit board to reduce the space occupied by the first transmission line and the possibility of the first transmission line interfering with other components of the rotating shaft mechanism. In addition, the form of the first circuit board makes it easy to assemble onto the swing arm.

[0041] In some implementations, the first connecting part is an arc-shaped structure, and the base has a first arc-shaped groove. The arc-shaped structure extends into the first arc-shaped groove so that the swing arm is rotatably connected to the base.

[0042] A second conductive part is provided in the first arc-shaped groove.

[0043] By adopting the above technical solution, the swing arm and the base are connected by a first arc-shaped groove and an arc-shaped structure, so as to realize the pivot connection between the swing arm and the base in the form of a virtual axis, and the swing arm can also slide relative to the base, thus ensuring the stability and reliability of the swing arm's movement relative to the base.

[0044] In some implementations, the rotating shaft mechanism further includes a first pin, a second connecting part having a first pin hole, a connecting member having a second pin hole, and the first pin passing through the first pin hole and the second pin hole so that the swing arm and the connecting member are rotatably connected.

[0045] The first pin hole has a first conductive part on its end face, and the second pin hole has a second conductive part on its end face.

[0046] By adopting the above technical solution, the swing arm and the connecting part are hinged by a first pin, which can effectively transmit the load, make the force distribution more uniform, reduce the fatigue and damage risk at the connection between the connecting part and the swing arm, and help improve the service life of the rotating shaft mechanism.

[0047] In some implementations, the first conductive part includes an electrically connected metal layer disposed on the swing arm, and the electrically connected metal layer is in contact with the second conductive part.

[0048] By adopting the above technical solution, a stable connection between the first conductive part and the second conductive part can be guaranteed, and the electrical connection metal layer on the swing arm can also facilitate the installation of the first conductive part on the swing arm.

[0049] A second aspect of this application provides a pivot mechanism for an electronic device, comprising:

[0050] First component;

[0051] The second component is movably connected to the first component;

[0052] An electrical connection structure includes a first conductive part and a second conductive part, which are in movable contact with each other. The first conductive part is mounted on a first component, and the second conductive part is mounted on a second component. During the movement of the first component relative to the second component, the first conductive part on the first component comes into contact with the second conductive part on the second component.

[0053] The first component is a swing arm, and the second component is a door panel; or, the first component is a connector, and the second component is a door panel.

[0054] By adopting the above technical solution, a first conductive part and a second conductive part are provided at the position where the swing arm and the door panel are movably connected, or at the position where the connector and the door panel are movably connected. When the first component and the second component move relative to each other, the first conductive part can remain in contact with the second conductive part, thereby realizing the transmission of electrical signals between the two relatively moving components. This also allows one, multiple, or all signals transmitted by the through-shaft flexible circuit board to be separated from the through-shaft flexible circuit board and transmitted using the first and second conductive parts provided between the two movably connected components in the rotating shaft mechanism. This reduces the width of the through-shaft flexible circuit board, thereby reducing the space occupied by the through-shaft flexible circuit board in the rotating shaft mechanism and ensuring the structural stability of the rotating shaft mechanism.

[0055] A third 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.

[0056] By adopting the above technical solution and applying the rotating shaft mechanism to electronic devices, a first conductive part and a second conductive part are set at the position of rotational connection between the swing arm and the base. In this way, when the swing arm rotates relative to the base, the first conductive part can maintain contact with the second conductive part, thereby realizing the transmission of electrical signals between the two relatively moving parts. This allows one, multiple, or all signals transmitted by the through-shaft flexible circuit board to be separated from the through-shaft flexible circuit board and transmitted using the first and second conductive parts. This reduces the width of the through-shaft flexible circuit board, thereby reducing the space occupied by the through-shaft flexible circuit board on the rotating shaft mechanism and ensuring the structural stability of the rotating shaft mechanism.

[0057] In some implementations, the electronic device also includes a main circuit board and a secondary circuit board, with the main circuit board mounted on a first sub-casing and the secondary circuit board mounted on a second sub-casing, and the main circuit board and the secondary circuit board electrically connected by an electrical connection structure.

[0058] By adopting the above technical solution, electrical communication between two different circuit boards of an electronic device can be easily realized.

[0059] In some implementations, the electronic device also includes a through-shaft flexible circuit board that passes through the rotating shaft mechanism, and the main circuit board and the secondary circuit board are electrically connected through the through-shaft flexible circuit board.

[0060] By adopting the above technical solution, when the electrical connection structure is used to transmit one or more signals, a through-axis flexible circuit board can also be used to transmit several signals, thereby meeting the needs of different application scenarios. Attached Figure Description

[0061] Figure 1 This is a schematic diagram of the electronic device provided in the embodiment of this application in its unfolded state;

[0062] Figure 2 This is a schematic diagram of the electronic device provided in the embodiments of this application in a semi-deployed state;

[0063] 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;

[0064] Figure 4 This is a schematic diagram of the rotating shaft mechanism provided in the embodiments of this application;

[0065] Figure 5 yes Figure 4 A magnified view of a portion of point D in the middle;

[0066] Figure 6 This is a schematic diagram illustrating the principle structure of the electrical connection between the main circuit board and the sub-circuit board in an embodiment of this application;

[0067] Figure 7 This is a schematic diagram illustrating the principle structure of the electrical connection between the main circuit board and the sub-circuit board in an embodiment of this application;

[0068] Figure 8 This is a partial structural schematic diagram of the rotating shaft mechanism provided in the embodiments of this application;

[0069] Figure 9 This is another partial structural schematic diagram of the rotating shaft mechanism provided in the embodiments of this application;

[0070] Figure 10 This is a sectional view along line EE in section 9;

[0071] Figure 11 This is a schematic diagram of the structure of the electrical contact provided in the embodiments of this application;

[0072] Figure 12 This is a partial structural schematic diagram of the connector provided in an embodiment of this application;

[0073] Figure 13 This is another partial structural schematic diagram of the connector provided in the embodiments of this application;

[0074] Figure 14 This is a partial structural schematic diagram of the base in an embodiment of this application;

[0075] Figure 15 yes Figure 14 A structural schematic diagram of the base from another perspective;

[0076] Figure 16 This is a schematic diagram of the structure of the first conductive part and the second conductive part cooperating in an embodiment of this application;

[0077] Figure 17 This is another partial structural schematic diagram of the connector provided in the embodiments of this application;

[0078] Figure 18 This is another partial structural schematic diagram provided in an embodiment of this application;

[0079] Figure 19 This is a schematic diagram of the swing arm provided in the embodiment of this application;

[0080] Figure 20 yes Figure 19 A structural schematic diagram of the swing arm from another perspective;

[0081] Figure 21 This is a simplified schematic diagram of the rotating shaft mechanism in an embodiment of this application;

[0082] Figure 22 It is along Figure 21 Sectional view of the middle FF line;

[0083] Figure 23 It is along Figure 21 A cross-sectional view of the GG line in the middle;

[0084] Figure 24 This is another simplified schematic diagram of the rotating shaft mechanism in the embodiments of this application;

[0085] Figure 25 It is along Figure 24 A cross-sectional view of the middle HH line;

[0086] Figure 26 This is a schematic diagram of the cross-section of a double-sided circuit board provided in an embodiment of this application.

[0087] The meanings of the various symbols in the attached icons are as follows:

[0088] 100. Rotating shaft mechanism; 101. Base; 102. Door panel; 103. Swing arm; 104. Connector; 105. Electrical connection structure; 106. First conductive part; 107. Second conductive part; 108. First connecting part; 109. Second connecting part; 110. First transmission line; 111. First circuit board; 113. Second transmission line; 115. Lead wire; 116. Third circuit board; 118. Arm assembly; 120. First pin; 121. Shaft cover; 122. Middle beam; 124. Arc-shaped surface; 125. First mounting surface; 126. Second mounting surface; 127. First arc-shaped groove; 128. Electrical contact; 12 9. Pin portion; 130. Contact portion; 131. First pin hole; 132. Second pin hole; 133. First recessed groove; 134. First connecting sub-block; 135. Second connecting sub-block; 136. Third connecting sub-block; 137. First groove wall; 138. Second groove wall; 139. Adapter plate; 140. Electrical connection metal layer; 141. First sub-block; 142. Insulation separation layer; 143. Second sub-block; 144. Third sub-block; 145. Core board; 146. Conductor layer; 147. Through hole; 148. Cover film; 149. First channel; 150. Second channel; 151. Second circuit board; 152. Contact plane;

[0089] 200. Display screen; 201. First part; 202. Second part; 203. Foldable part;

[0090] 301. First subshell; 302. Second subshell;

[0091] 401. Through-shaft flexible circuit board;

[0092] 501. Main circuit board; 502. Secondary circuit board. Detailed Implementation

[0093] 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.

[0094] 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.

[0095] The rotating shaft mechanism and electronic device provided in the embodiments of this application will be explained in detail below.

[0096] 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.

[0097] 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.

[0098] 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.

[0099] 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 is understood that the coordinate system settings of the electronic device can be flexibly configured according to actual needs, and are not specifically limited here.

[0100] See Figure 1 and Figure 2 As shown, Figure 1 The 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.

[0101] 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.

[0102] 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.

[0103] 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.

[0104] Please refer to the following: Figure 2The 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.

[0105] 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.

[0106] 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.

[0107] 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.

[0108] In the embodiments of this application, see Figures 1 to 3 As 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 200 is exposed when folded.

[0109] Figure 4 This is a schematic diagram of the structure of the rotating shaft mechanism 100 provided in the embodiments of this application. See also: Figure 4As shown, the electronic device includes a through-shaft flexible circuit board 401, which passes through a rotating shaft mechanism 100 to enable communication between electronic components mounted on the first sub-shell 301 and electronic components mounted on the second sub-shell 302.

[0110] Figure 5 yes Figure 4 A magnified view of a portion of point D, combined with... Figure 4 and Figure 5 As shown, in some embodiments, the pivot mechanism 100 includes a base 101, a swing arm 103, a door panel 102, and a connector 104; the base 101 is rotatably connected to one end of the swing arm 103, and the other end of the swing arm 103 is movably connected to the connector 104; the door panel 102 is used to support the foldable portion 203 of the display screen 200; the door panel 102 is rotatably connected to the connector 104, and the swing arm 103 is connected to the door panel 102 by a high-pair connection, so as to realize the control of the movement of the door panel 102 by the swing arm 103. For example, the length direction of the rotating shaft mechanism 100 is parallel to the Y-axis direction, the length direction of the base 101 is parallel to the length direction of the rotating shaft mechanism 100, and the width direction of the base 101 is parallel to the X-axis direction. Connectors 104, door panels 102, and swing arms 103 are respectively provided on both sides of the length direction of the base 101. The number of swing arms 103 on each side of the length direction of the base 101 can be one or more, for example, the swing arms 103 on both sides of the length direction of the base 101 are symmetrically arranged about the center line of the base 101. The center line of the base 101 is parallel to the length direction of the base 101, and the center line of the base 101 passes through the midpoint of the width of the base 101. The first sub-shell 301 and the second sub-shell 302 are respectively fixedly connected to the corresponding connectors 104 on both sides of the base 101. The fixed connection can be formed by an integral molding process to create an integral structure, or by welding or screw connection. The pivot mechanism 100 may further include a damping mechanism and a synchronization mechanism. The damping mechanism enables the swing arm 103 to hover and dampen its movement relative to the base 101. The synchronization mechanism enables the synchronous movement between the two swing arms 103 symmetrically arranged on both sides of the base 101 along its length, thereby achieving the folding and unfolding of the pivot mechanism 100. It should be noted that the swing arm 103 and the door panel 102 are connected by a high-pair connection. The swing arm 103 may have a sliding groove, and the door panel 102 may have a pin. The pin extends into the sliding groove and can slide along the length of the sliding groove, with a line-surface contact between the pin and the sliding groove.

[0111] See Figure 5 As shown, the base 101 includes a shaft cover 121 and a middle beam 122, and the shaft cover 121 and the middle beam 122 are fixedly connected by screws or welding.

[0112] Figure 6This is a schematic diagram illustrating the electrical connection between the main circuit board 501 and the sub-circuit board 502 in an embodiment of this application. See [link / reference]. Figure 6 As shown, Figure 6 A simplified schematic diagram of the rotating shaft mechanism 100 is also shown. In some embodiments, the electronic device further includes a main circuit board 501 and a secondary circuit board 502. The main circuit board 501 may also be referred to as a motherboard, and the secondary circuit board 502 may also be referred to as a secondary board. Both the main circuit board 501 and the secondary circuit board 502 integrate the necessary electronic components of the electronic device, such as a central processing unit. The main circuit board 501 is mounted on the first sub-shell 301, and the secondary circuit board 502 is mounted on the second sub-shell 302.

[0113] See Figure 6As shown, the rotating shaft mechanism 100 in this embodiment further includes an electrical connection structure 105; the swing arm 103 includes a first connecting portion 108, which is rotatably connected to the base 101; the electrical connection structure 105 includes a first conductive portion 106 and a second conductive portion 107, which are in movable contact with each other; wherein, the first connecting portion 108 is equipped with the first conductive portion 106, and the base 101 is equipped with the second conductive portion 107. During the rotation of the swing arm 103 relative to the base 101, the first conductive portion 106 on the first connecting portion 108 can contact the second conductive portion 107 on the base 101. By setting the first conductive portion 106 and the second conductive portion 107 at the rotatable connection position between the swing arm 103 and the base 101, the first conductive portion 106 can remain in contact with the second conductive portion 107 as the swing arm 103 rotates relative to the base 101. The 07 phase contact enables the transmission of electrical signals between two relatively moving components. This allows one, multiple, or all signals transmitted by the through-axis flexible circuit board 401 to be separated from the through-axis flexible circuit board 401 and transmitted using the first conductive part 106 and the second conductive part 107. This reduces the width of the through-axis flexible circuit board 401, thereby reducing its space occupation on the pivot mechanism 100 and ensuring the structural stability of the pivot mechanism 100, as well as the stability of the transmission of signals such as power supply signals, radio frequency signals, and high-speed signals when the electronic device switches between folded and unfolded states. In addition, by combining the electrical connection structure 105 with the through-axis flexible circuit board 401, some space can be freed up. This invention, by fusing the signals of the through-axis FPC and the pivot structure in the lateral direction of the pivot, can free up some space to better improve the strength of the pivot mechanism 100. It should be noted that the use of electrical connection structure 105 is not limited to reducing the width of the through-shaft flexible circuit board 401. In some other possible embodiments, when electronic components that require power are installed in the shaft mechanism 100, electrical connection structure 105 can also be used to provide them with power or to enable communication between electronic components and other electronic components of the electronic device.

[0114] In some embodiments, the first conductive part 106 and the second conductive part 107 may move relative to each other, such as rotating or sliding, but they remain in contact to achieve an electrical connection between the first conductive part 106 and the second conductive part 107. When the first conductive part 106 and the second conductive part 107 rotate relative to each other and come into contact, the first conductive part 106 and the second conductive part 107 cooperate to form an electrical slip ring structure.

[0115] See Figure 6As shown, in some embodiments, the swing arm 103 further includes a second connecting portion 109, and the first connecting portion 108 is fixedly connected to the second connecting portion 109; the second connecting portion 109 is equipped with a first conductive portion 106, and the connector 104 is equipped with a second conductive portion 107; during the movement of the swing arm 103 relative to the connector 104, the first conductive portion 106 on the second connecting portion 109 can contact the second conductive portion 107 on the connector 104, so that the first conductive portion 106 and the second conductive portion 107 are also provided between the swing arm 103 and the connector 104, which further reduces the influence of the through-shaft flexible circuit board 401, thereby ensuring the structural stability of the rotating shaft mechanism 100.

[0116] See Figure 6 As shown, the main circuit board 501 and the sub-circuit board 502 are electrically connected via an electrical connection structure 105. This allows for the transmission of one or more signals between the main circuit board 501 and the sub-circuit board 502 using the electrical connection structure 105 in the rotating shaft mechanism 100, thereby reducing the width of the through-shaft flexible circuit board 401. For example, in this embodiment, the main circuit board 501 and the sub-circuit board 502 are also connected via a through-shaft flexible circuit board 401 (see...). Figure 4 (As shown) Electrical connection is achieved. The communication path between the main circuit board 501 and the sub-circuit board 502 is as follows: After the signal is emitted by the main circuit board 501, it is transmitted through the second conductive part 107 and the first conductive part 106 between the swing arm 103 and the connector 104 on one side of the base 101, then through the first conductive part 106 and the second conductive part 107 between the swing arm 103 and the base 101 on one side of the base 101, then through the second conductive part 107 and the first conductive part 106 between the swing arm 103 and the base 101 on the other side of the base 101, and then through the first conductive part 106 and the second conductive part 107 between the swing arm 103 and the connector 104 on the other side of the base 101, and finally to the sub-circuit board 502, thereby realizing communication between the main circuit board 501 and the sub-circuit board 502. The communication between the main circuit board 501 and the sub-circuit board 502 can be bidirectional. The signal can be a power supply signal, a power charging signal, a screen display signal, a sensor signal, a control signal, or an audio signal.

[0117] It is understood that when the electrical connection structure 105 of the rotating shaft mechanism 100 can transmit all the signals transmitted by the through-shaft flexible circuit board 401 in the related technology, the electronic device in this application embodiment can also omit the through-shaft flexible circuit board 401, that is, the main circuit board 501 and the secondary circuit board 502 are completely connected by the electrical connection structure 105 of the rotating shaft mechanism 100.

[0118] See Figure 6 As shown, Figure 6The diagram shows an electrical connection structure 105 between one side of the swing arm 103 in the width direction and the connector 104 and the base 101. The width direction of the swing arm 103 is parallel to the length direction of the rotating shaft mechanism 100, that is, parallel to the Y-axis direction.

[0119] See Figure 6 As shown, in some embodiments, the electrical connection structure 105 further includes a first transmission line 110, which realizes the electrical connection between two first conductive parts 106 on one side of the width direction of the swing arm 103. For example, the first transmission line 110 includes at least one first sub-line, the end of which is connected to the first conductive part 106. This can meet the requirement of transmitting one or more signals. That is, when one first sub-line transmits one signal, when the first transmission line 110 includes two, three or more first sub-lines, the first transmission line 110 can transmit one or more signals.

[0120] In some embodiments, the first transmission line 110 is fixed to the surface of the swing arm 103; or, the first transmission line 110 is embedded inside the swing arm 103. Fixing the first transmission line 110 to the surface of the swing arm 103 facilitates manufacturing; embedding the first transmission line 110 inside the swing arm 103 reduces its exposure, thus protecting it. The electrical connection structure 105 also includes a first circuit board 111, on which the first transmission line 110 is integrated. The first circuit board 111 is mounted on the swing arm 103. The first circuit board 111 can be a flexible or rigid circuit board. Integrating the first transmission line 110 onto the first circuit board 111, taking advantage of its thinness, reduces the space occupied by the first transmission line 110 and the possibility of it interfering with other components of the rotating shaft mechanism 100. Furthermore, using the form of the first circuit board 111 facilitates assembly onto the swing arm 103.

[0121] See Figure 6 As shown, in some embodiments, the electrical connection structure 105 further includes a second transmission line 113, through which two second conductive parts 107 on one side of the swing arm 103 in the width direction on the base 101 are electrically connected; similarly, the second transmission line 113 includes at least one second sub-wire, the end of which is connected to the second conductive part 107, thus satisfying the need to transmit one or more signals, that is, when one second sub-wire transmits one signal, when the second transmission line 113 includes two, three or more second sub-wires, the second transmission line 113 can transmit one or more signals.

[0122] In some embodiments, the second transmission line 113 is fixed to the surface of the base 101; or, the second transmission line 113 is embedded inside the base 101. Fixing the second transmission line 113 to the surface of the base 101 facilitates manufacturing; embedding the second transmission line 113 inside the base 101 reduces its exposure, thus protecting it. The electrical connection structure 105 also includes a second circuit board 151 on which the second transmission line 113 is integrated; the second circuit board 151 is mounted on the base 101; the first circuit board 111 is a flexible or rigid circuit board. Integrating the second transmission line 113 onto the second circuit board 151, taking advantage of the thinner thickness of the second circuit board 151, reduces the space occupied by the second transmission line 113 and the possibility of the second transmission line 113 interfering with other components of the rotating shaft mechanism 100; furthermore, using the form of the second circuit board 151 facilitates assembly onto the base 101.

[0123] See Figure 6 As shown, the electrical connection structure 105 also includes lead wires 115, which are electrically connected to the second conductive portion 107 on the connector 104. Thus, different lead wires 115 are electrically connected to the main circuit board 501 and the sub-circuit board 502 respectively, thereby enabling communication between the main circuit board 501 and the sub-circuit board 502 through the electrical connection structure 105. For example, the lead wires 115 include one or more third sub-wires, which are used to transmit the same or different signals.

[0124] In some embodiments, the electrical connection structure 105 may further include a third circuit board 116, and the lead wire 115 may also be integrated onto the third circuit board 116. The third circuit board 116 is a flexible circuit board or a rigid circuit board. By integrating the lead wire 115 onto the third circuit board 116, the space occupied by the lead wire 115 can be reduced by utilizing the thinness of the third circuit board 116. Thus, the electrical connection structure 105 in this embodiment includes a first conductive part 106, a second conductive part 107, a first transmission line 110, a second transmission line 113, a lead wire 115, a first circuit board 111, a second circuit board 151, and a third circuit board 116. The communication path between the main circuit board 501 and the secondary circuit board 502 can be implemented by an electric slip ring structure between the swing arm 103 and the connector 104, and an electric slip ring structure between the swing arm 103 and the base 101. For example, Figure 6 The number of electrical connection structures 105 is one, that is, an electrical connection structure 105 is provided on one side of the width direction of the swing arm 103.

[0125] In some embodiments, two swing arms 103 symmetrically arranged about the center line of the base 101 form an arm group 118, so that one or more signals between the main circuit board 501 and the sub-circuit board 502 can be transmitted through the arm group 118; when the number of arm groups 118 of the rotating shaft mechanism 100 is multiple, the transmission of two or more signals can be realized, which is beneficial to realize the communication between the main circuit board 501 and the sub-circuit board 502 of the electronic device, and the through-shaft flexible circuit board 401 is no longer required, that is, the electronic device does not need to be equipped with the through-shaft flexible circuit board 401.

[0126] Figure 7 This is a schematic diagram illustrating the principle structure of the electrical connection between the main circuit board 501 and the sub-circuit board 502 in this embodiment of the application. Figure 7 A simplified schematic diagram of the rotating shaft mechanism 100 is also shown; see also Figure 7 The rotating shaft mechanism 100 and Figure 6 The difference in the rotating shaft mechanism 100 is that... Figure 7 The diagram shows electrical connection structures 105 disposed between the swing arm 103 and the connector 104 and the base 101 on both sides of the swing arm 103 in the width direction. Thus, when one signal is transmitted by the electrical connection structure 105 on one side of the swing arm 103 in the width direction, one arm assembly 118 can transmit one or more signals; and when two or more signals are transmitted by the electrical connection structure 105 on one side of the swing arm 103 in the width direction, one arm assembly 118 can transmit one or more signals. For example, Figure 7 The number of electrical connection structures 105 is two, that is, one electrical connection structure 105 is provided on each side of the width direction of the swing arm 103. It should be noted that the multiple electrical connection structures 105 can transmit different signals or transmit the same signal, which can be determined according to actual needs.

[0127] Figure 8 This is a partial structural schematic diagram of the rotating shaft mechanism 100 provided in an embodiment of this application, wherein, Figure 8 The rotating shaft mechanism 100 is in the unfolded state, see [link / reference]. Figure 8 As shown, in some embodiments, the second connecting portion 109 of the swing arm 103 is rotatably connected to the connecting member 104. The rotating shaft mechanism 100 also includes a first pin 120. The second connecting portion 109 of the swing arm 103 and the connecting member 104 are hinged together by the first pin 120, i.e., rotatably connected. The first connecting portion 108 of the swing arm 103 is rotatably connected to the middle beam 122 of the base 101. The first connecting portion 108 has an arc-shaped structure, which facilitates the rotatable connection between the swing arm 103 and the base 101 using a virtual axis. Figure 8The diagram shows an arm assembly 118 of the pivot mechanism 100, namely two swing arms 103 symmetrically arranged about the center line of the base 101.

[0128] It should be noted that the arc-shaped structure refers to having an arc-shaped surface 124, i.e., a cylindrical surface, which facilitates the rotation of the swing arm 103 relative to the base 101. In some other possible embodiments, the swing arm 103 and the base 101 can also be rotatably connected by a solid shaft, i.e., the swing arm 103 and the base 101 are rotatably connected by a pin.

[0129] Figure 9 This is another partial structural schematic diagram of the rotating shaft mechanism 100 provided in the embodiments of this application, wherein, Figure 9 The rotating shaft mechanism 100 is in the unfolded state. Figure 9 Only one swing arm 103 of the arm assembly 118 is shown in the image. Figure 10 This is a sectional view along line EE in section 9, combined with... Figure 9 and Figure 10 As shown, the swing arm 103 has a first mounting surface 125, and a first conductive part 106 is mounted on the first mounting surface 125. The first mounting surface 125 is perpendicular to the length direction of the rotating shaft mechanism 100. The base 101 and the connector 104 each have a second mounting surface 126, and a second conductive part 107 is mounted on the second mounting surface 126. The second mounting surface 126 is perpendicular to the length direction of the rotating shaft mechanism 100. By placing the first conductive part 106 on the first mounting surface 125 perpendicular to the length direction of the rotating shaft mechanism 100 and the second conductive part 107 on the second mounting surface 126 perpendicular to the length direction of the rotating shaft mechanism 100, the impact on the thickness of the base 101, the connector 104, and the swing arm 103 can be reduced, thereby ensuring that the strength of the structure itself can still meet the design requirements. For example, when the first connecting portion 108 of the swing arm 103 is connected to the base 101, the first connecting portion 108 has a first mounting surface 125; when the second connecting portion 109 of the swing arm 103 is connected to the connector 104, the second connecting portion 109 has a second mounting surface 126.

[0130] Combination Figure 9 and Figure 10 As shown, in some embodiments, the base 101 has a first arcuate groove 127, thus the arcuate structure of the swing arm 103 (see...) Figure 8As shown, the arm 103 can be inserted into the first arc-shaped groove 127, allowing the swing arm 103 to be rotatably connected to the base 101. A second conductive part 107 is provided in the first arc-shaped groove 127, where the groove wall perpendicular to the length direction of the rotating shaft mechanism 100 is the second mounting surface 126. In this way, the swing arm 103 and the base 101 are connected by the first arc-shaped groove 127 and the arc-shaped structure, achieving a virtual shaft connection between the swing arm 103 and the base 101. Furthermore, the swing arm 103 can slide relative to the base 101, ensuring the stability and reliability of the swing arm 103's movement relative to the base 101. For example, when the swing arm 103 is connected to the base 101, the first mounting surface 125 on the first connecting portion 108 of the swing arm 103 and the second mounting surface 126 on the base 101 are arranged opposite to each other; while when the swing arm 103 is connected to the connector 104, the first mounting surface 125 on the second connecting portion of the swing arm 103 and the second mounting surface 126 on the connector 104 are arranged opposite to each other, which facilitates the contact between the first conductive portion 106 and the second conductive portion 107.

[0131] See Figure 10 As shown, in some embodiments, the second conductive portion 107 includes an electrical contact 128, which includes a lead portion 129 and a contact portion 130. The lead portion 129 is fixedly connected to the contact portion 130 and is fixed to the second mounting surface 126. The contact portion 130 is capable of elastic deformation. This elastic deformation of the electrical contact 128 achieves an interference fit between the first conductive portion 106 and the second conductive portion 107, ensuring tight contact between them and guaranteeing normal communication of the electronic device. For example, the electrical contact 128 is a sheet-like structure, which can be elastic. The material of the electrical contact 128 is metal, such as copper or stainless steel. The lead portion 129 and the contact portion 130 can be integrally formed using a molding process. The pin portion 129 can be directly or indirectly fixed to the second mounting surface 126. For example, when the connector 104, base 101 and swing arm 103 are all made of metal, the electrical contact 128 can be fixed to the second mounting surface 126 by welding or 3D printing. In this way, the first transmission line 110 can form an integral structure with the swing arm 103, the lead wire 115 can form an integral structure with the connector 104, and the second transmission line 113 can form an integral structure with the base 101. That is, the swing arm 103, base 101 and connector 104 themselves are equivalent to conductors, so that the electrical connection structure 105 can realize the transmission of power ground signal or large current. The electrical connection structure 105 can also serve as the return path to the ground.

[0132] It should be noted that the electrical contact 128 is not limited to a sheet structure, but can also be a block structure, which can achieve electrical connection with the first conductive part 106 under the action of an elastic element (such as a spring). In some other possible embodiments, instead of using the form where the swing arm 103 itself forms the first transmission line 110, the connector 104 itself forms the lead line 115, and the base 101 itself forms the second transmission line 113, the first transmission line 110, lead line 115, and second transmission line 113 made of copper wire can be used to realize the transmission of power signals. In addition, when the connector 104, base 101, and swing arm 103 are all made of metal, and the pin part 129 is directly welded to the second mounting surface 126, an insulating layer needs to be provided on the surface of the connector 104, base 101, and swing arm 103, and it is necessary to ensure that the second conductive part 107 is electrically connected to the connector 104 and base 101, and the first conductive part 106 is electrically connected to the swing arm 103.

[0133] It is understandable that, in some other possible scenarios, when the connector 104, base 101, and swing arm 103 are all made of metal, the pin portion 129 can also be indirectly fixed to the second mounting surface 126 using an adapter plate 139. The pin portion 129 is fixed to the adapter plate 139, and the adapter plate 139 is fixedly connected to the second mounting surface 126. The adapter plate 139 can be made of insulating or non-insulating material. When an insulating material is used, it facilitates the transmission of multiple signals by the electrical connection structure 105. In some further possible embodiments, when the connector 104, base 101, and swing arm 103 are all made of both metal and plastic, i.e., when the connector 104, base 101, and swing arm 103 are all formed using a metal insert injection molding process, the pin portion 129 can also be fixed to the second mounting surface 126 using a metal insert injection molding process.

[0134] See Figure 10As shown, in some embodiments, the orthographic projection of the electrical contact 128 in a preset plane is a fan-shaped ring, and the preset plane is perpendicular to the length direction of the rotating shaft mechanism 100. The second conductive part 107 includes one or more electrical contacts 128, wherein when the second conductive part 107 includes multiple electrical contacts 128, the multiple electrical contacts 128 are spaced apart. When the orthographic projection of the electrical contact 128 is a fan-shaped ring, the stability of the electrical connection between the first conductive part 106 and the second conductive part 107 can be ensured during the rotation of the swing arm 103 relative to the base 101. When multiple electrical contacts 128 are provided, when multiple electrical contacts 128 are used to transmit a single signal, the continuity and stability of the signal transmission are guaranteed; when multiple electrical contacts 128 are used to transmit different signals, the width of the through-shaft flexible circuit board 401 can be further reduced, thereby reducing its space occupation on the rotating shaft mechanism 100. It should be noted that the preset plane can be any plane perpendicular to the length direction of the rotating shaft mechanism 100, and not a unique plane.

[0135] For example, see Figure 10 As shown, a plurality of electrical contacts 128 of the second conductive portion 107 disposed on the second mounting surface 126 of the connector 104 are spaced apart on the same set circle, and the center of the fan-shaped annulus is concentric with the center of the set circle. For example, there are two electrical contacts 128, and the two electrical contacts 128 are symmetrically arranged about a diameter of the set circle. See also Figure 10 As shown, the number of electrical contacts 128 of the second conductive portion 107 disposed on the second mounting surface 126 of the base 101 can be one or more. For example, the number of electrical contacts 128 can be one. It is understood that the number of electrical contacts 128 of the second conductive portion 107 disposed on the second mounting surface 126 of the base 101 can also be multiple, and the multiple electrical contacts 128 are spaced apart.

[0136] See Figure 10 As shown, in some embodiments, the second connecting portion 109 of the swing arm 103 has a first pin hole 131, the connecting member 104 has a second pin hole 132, and the first pin 120 passes through the first pin hole 131 and the second pin hole 132, so that the swing arm 103 and the connecting member 104 are rotatably connected; the first pin 120 is used between the swing arm 103 and the connecting member 104 to achieve a hinge connection, which can effectively transmit the load, make the force distribution more uniform, reduce the fatigue and damage risk at the connection between the connecting member 104 and the swing arm 103, and help improve the service life of the rotating shaft mechanism 100.

[0137] Figure 11 This is a schematic diagram of the structure of the electrical contact 128 provided in the embodiments of this application; combined with Figure 10 and Figure 11As shown, in some embodiments, the contact portion 130 protrudes from the second mounting surface 126 and has a contact plane 152 that contacts the first conductive portion 106. When the first conductive portion 106 contacts the second conductive portion 107, the contact portion 130 can undergo elastic deformation, increasing a preload (also called axial preload) parallel to the length direction of the rotating shaft mechanism 100, thus ensuring the stability of the electrical connection between the first conductive portion 106 and the second conductive portion 107. The contact plane 152 of the contact portion 130 provides a larger contact surface, reducing contact resistance and further ensuring the stability of the electrical connection. For example, when the contact surface has a contact plane 152, the contact surface can be in surface contact with the first conductive portion 106. It should be noted that in some other possible cases, the second conductive portion 107 and the first conductive portion 106 can also be in point contact or line contact.

[0138] See Figure 11 As shown, in some embodiments, the electrical contact 128 includes two pin portions 129; in the electrical contact 128, one pin portion 129 is connected to one end of the contact portion 130 along its length, and the other pin portion 129 is connected to the other end of the contact portion 130 along its length. This dual-pin structure better ensures good and stable contact between the first conductive portion 106 and the second conductive portion 107 during the unfolding and folding process of the rotating shaft mechanism 100. It should be noted that in some other possible embodiments, the electrical contact 128 may also have only one pin portion 129.

[0139] Figure 12 This is a partial structural schematic diagram of the connector 104 provided in the embodiments of this application, combined with... Figure 11 and Figure 12 As shown, in some embodiments, the second mounting surface 126 has a first recessed groove 133, and the pin portion 129 is fixed in the first recessed groove 133; the shape of the first recessed groove 133 is adapted to the shape of the orthographic projection of the electrical contact 128 in a preset plane, which can improve the stability of the pin portion 129 on the second mounting surface 126, thereby ensuring the stability of the electrical contact 128 on the second mounting surface 126.

[0140] Figure 13 This is another partial structural schematic diagram of the connector 104 provided in the embodiments of this application, see [link to schematic diagram]. Figure 13As shown, the connector 104 includes a plurality of spaced-apart connector sub-blocks. The connector sub-blocks are provided with second pin holes 132. The second pin holes 132 on the plurality of connector sub-blocks are coaxially arranged. The first pin 120 passes through the second pin hole 132 on each connector sub-block to achieve the hinge connection between the swing arm 103 and the connector 104. For example, the number of connecting sub-blocks connected to a swing arm 103 is three, and the three connecting sub-blocks are spaced apart along the length direction of the rotating shaft mechanism 100. For ease of description, the three connecting sub-blocks distributed along the length direction of the rotating shaft mechanism 100 are a first connecting sub-block 134, a second connecting sub-block 135, and a third connecting sub-block 136. One end face of the second pin hole 132 on the first connecting sub-block 134 and the third connecting sub-block 136 forms a second mounting surface 126, and the second mounting surface 126 on the first connecting sub-block 134 and the second mounting surface 126 on the third connecting sub-block 136 are arranged facing each other. In this way, when the connector 104 is connected to a swing arm 103, two second conductive parts 107 can be provided on the connector 104.

[0141] It should be noted that in some other possible implementations, the two end faces of the second pin hole 132 on the first connecting sub-block 134 can respectively form a second mounting surface 126, so that when the connector 104 is connected to a swing arm 103, four second conductive parts 107 can be provided on the connector 104.

[0142] Figure 14 This is a partial structural schematic diagram of the base 101 in an embodiment of this application. Figure 15 yes Figure 14 Another structural schematic diagram of the base 101; in which, Figure 14 and Figure 15 The structure of the central beam 122 of the base 101 is shown. Combined with... Figure 14 and Figure 15As shown, the central beam 122 of the base 101 is rotatably connected to the first connecting portion 108 of the swing arm 103, and the second conductive portion 107 is mounted on the central beam 122 of the base 101. Since the central beam 122 of the base 101 is rotatably connected to two swing arms 103 in an arm assembly 118, the base 101 has at least two first arc-shaped grooves 127 symmetrically arranged about the center line of the base 101. For example, the number of first arc-shaped grooves 127 for connecting to a swing arm 103 can be two, and the two first arc-shaped grooves 127 are distributed along the length direction of the rotating shaft mechanism 100. The second conductive portion 107 is provided on one of the two groove walls of the first arc-shaped groove 127 that are perpendicular to the length direction of the rotating shaft mechanism 100. For ease of description, the two groove walls of the first arc-shaped slide groove 127 that are perpendicular to the length direction of the rotating shaft mechanism 100 are respectively referred to as the first groove wall 137 and the second groove wall 138. In the two first arc-shaped slide grooves 127 that connect with a swing arm 103, there are two second groove walls 138 and two first groove walls 137. The two second groove walls 138 are located between the two first groove walls 137. A second conductive part 107 is provided on the first groove wall 137, and the first groove wall 137 forms a second mounting surface 126. (Combined with...) Figure 13 , Figure 14 and Figure 15 As shown, when the swing arm 103 is connected to the base 101 and the connector 104 respectively, the second conductive part 107 on one of the first groove walls 137 is electrically connected to the second conductive part 107 on a first connecting sub-block 134 on the connector 104, and the second conductive part 107 on the other first groove wall 137 is electrically connected to the second conductive part 107 on a third connecting sub-block 136 on the connector 104.

[0143] It should be noted that in some other possible embodiments, a second conductive part 107 may also be provided on the second groove wall 138. In this way, when the base 101 is connected to a swing arm 103, four second conductive parts 107 can be respectively provided in correspondence with four first conductive parts 106 on the swing arm 103.

[0144] Figure 16 This is a schematic diagram of the structure of the first conductive part 106 and the second conductive part 107 cooperating in an embodiment of this application. See [link / reference] Figure 16As shown, the second conductive part 107 also includes an adapter plate 139, with electrical contacts 128 fixed to the adapter plate 139, which is fixed to the second mounting surface 126. Using the adapter plate 139 allows the electrical contacts 128 to be indirectly mounted on the second mounting surface 126, facilitating the separate manufacturing of the second conductive part 107 and reducing the difficulty of mounting it on the second mounting surface 126. For example, there are two electrical contacts 128, and one pin portion 129 for each contact 128. The adapter plate 139 is made of an organic substrate, a ceramic substrate, or a metal substrate. The organic substrate is mainly made of resin or plastic and serves as an insulator; the ceramic substrate also serves as an insulator and can be fixedly connected to the second mounting surface 126 by adhesive bonding. The metal substrate can be made of aluminum or copper, etc. By using different materials for the adapter plate 139, the application requirements of the second conductive part 107 when transmitting one or more signals can be met. The adapter plate 139 can be connected to the base 101 or the connector 104 by welding, insert molding, or nano-injection molding; while the electrical contact 128 is fixed to the adapter plate 139 by surface mount technology, spot welding, or laser welding. When the adapter plate 139 is made of an organic substrate or a ceramic substrate, the adapter plate 139 can achieve insulation between the electrical contact 128 and the second mounting surface 126. It should be noted that, although Figure 16 The relationship between the electrical contact 128 and the adapter plate 139 is illustrated using the second conductive part 107 on the connector 104 and the first conductive part 106 on the swing arm 103 as examples. However, the electrical contact 128 of the second conductive part 107 on the base 101 can also be fixed to the base 101 using the adapter plate 139. In addition, when the swing arm 103 does not act as a conductor to transmit signals, the first conductive part 106 and the swing arm 103 can be insulated from each other. When the swing arm 103 acts as a conductor to transmit signals, the first conductive part 106 and the swing arm 103 can be electrically connected.

[0145] In some embodiments, the first conductive part 106 includes an electrically connected metal layer 140, which is disposed on the swing arm 103 and contacts the second conductive part 107. This ensures a stable connection between the first conductive part 106 and the second conductive part 107, and the electrically connected metal layer 140 on the swing arm 103 also facilitates the installation of the first conductive part 106 on the swing arm 103. The electrically connected metal layer 140 can be a coating material disposed on the swing arm 103, and the material of the electrically connected metal layer 140 can be copper, stainless steel, gold, or silver. The electrically connected metal layer 140 can be formed on the swing arm 103 by chemical plating, sputtering plating, or electroplating. When all the electrical contacts 128 in the second conductive part 107 are used to transmit a signal, the number of electrical connection metal layers 140 in the first conductive part 106 can be one, and the electrical connection metal layers 140 can be in the shape of a ring or a fan ring. When there are multiple electrical contacts 128 in the second conductive part 107, and multiple electrical contacts 128 are used to transmit different signals, the number of electrical connection metal layers 140 in the first conductive part 106 can be multiple. That is, the multiple electrical contacts 128 in the second conductive part 107 are arranged one-to-one with the multiple electrical connection metal layers 140 in the first conductive part 106. The electrical connection metal layers 140 can be in the shape of a fan ring. This ensures that when the swing arm 103 moves relative to the base 101 or the connector 104, the electrical contacts 128 and the electrical connection metal layers 140 that are in one-to-one contact remain in contact. When the electrical contact 128 moves relative to the electrical connection metal layer 140, the movement trajectory of the electrical contact 128 matches the length extension direction of the electrical connection metal layer 140. For example, when the movement trajectory of the electrical contact 128 is arc-shaped, the electrical connection metal layer 140 can be fan-shaped; when the movement trajectory of the electrical contact 128 is circular, the electrical connection metal layer 140 can be ring-shaped.

[0146] It should be noted that when the swing arm 103 is used as a conductor to transmit signals, the electrical connection metal layer 140 can be directly disposed on the swing arm 103, or the electrical connection metal layer 140 can be formed by the swing arm 103 itself. When the swing arm 103 is not used as a conductor, the electrical connection metal layer 140 needs to be insulated from the swing arm 103. For example, the first conductive part 106 also includes an insulating plate. The insulating plate is made of an insulating material, such as resin, plastic, or ceramic, to provide insulation. The insulating plate is fixedly connected to the swing arm 103 by insert injection molding or bonding. In this way, the electrical connection between the first conductive part 106 and the second conductive part 107 is the electrical connection between the electrical contact 128 and the electrical connection metal layer 140.

[0147] Figure 17 This is another partial structural schematic diagram of the connector 104 provided in the embodiments of this application; see also Figure 17As shown, in some embodiments, the first connecting sub-block 134 is provided with one second conductive part 107, the second connecting sub-block 135 is provided with two second conductive parts 107, and the third connecting sub-block 136 is provided with one second conductive part 107, that is, four second conductive parts 107 are provided at the position connected to a swing arm 103; the second conductive part 107 on the connector 104 includes an electrical contact 128 and an adapter plate 139 (not shown), and the adapter plate 139 is made of an insulating material.

[0148] Figure 18 This is another partial structural schematic diagram provided in an embodiment of this application; see also Figure 18 As shown, in some embodiments, there are two first arc-shaped grooves 127 connected to a swing arm 103. A second conductive part 107 is installed on each of the two groove walls of the first arc-shaped groove 127, namely the first groove wall 137 and the second groove wall 138. The second conductive part 107 on the base 101 also includes an electrical contact 128 and an adapter plate 139. The adapter plate 139 is made of an insulating material. For example, such as... Figure 18 As shown, the base 101 has eight second conductive parts 107. Four second conductive parts 107 on one side of the base 101 along its length direction are arranged in a one-to-one correspondence with four second conductive parts 107 on the other side of the base 101 along its length direction, and two corresponding second conductive parts 107 are electrically connected by a second transmission line 113 (not shown), that is, the two ends of the second transmission line 113 are respectively connected to an electrical contact 128 in the corresponding second conductive part 107.

[0149] Figure 19 This is a schematic diagram of the structure of the swing arm 103 provided in the embodiment of this application. Figure 20 yes Figure 19 A structural schematic diagram of the swing arm 103 from another perspective; in some embodiments, such as Figure 19 and Figure 20 As shown, the first conductive part 106 on the swing arm 103 includes an electrically connected metal layer 140 and an insulating plate (not shown), the insulating plate being made of an insulating material. Combined with... Figure 17 , Figure 19 and Figure 20 As shown, the second connecting portion 109 of the swing arm 103 has four first mounting surfaces 125 perpendicular to the length direction of the rotating shaft mechanism 100. The first mounting surfaces 125 are the end faces of the first pin holes 131. Thus, when the second connecting portion 109 is rotatably connected to the connecting member 104, four first conductive portions 106 are provided on the second connecting portion 109, thereby achieving a one-to-one correspondence between the four first conductive portions 106 on the second connecting portion 109 and the four second conductive portions 107 on the connecting member 104. Combined with... Figure 18 , 19 , Figure 20As shown, the first connecting part 108 of the swing arm 103 has four first mounting surfaces 125 that are perpendicular to the length direction of the rotating shaft mechanism 100. When the first connecting part 108 is rotatably connected to the base 101, four first conductive parts 106 are provided on the first connecting part 108, thereby realizing that the four first conductive parts 106 on the first connecting part 108 are correspondingly arranged with the four second conductive parts 107 on one side of the base 101.

[0150] Combination Figure 19 and Figure 20 As shown, in some embodiments, the electrical connection metal layer 140 of the first conductive portion 106 between the swing arm 103 and the connector 104 is annular, and the electrical connection metal layer 140 of the first conductive portion 106 between the swing arm 103 and the base 101 is fan-shaped or approximately fan-shaped, so that the first conductive portion 106 is used to transmit a signal.

[0151] See Figure 19 and Figure 20 As shown, the four first conductive parts 106 on the first connecting part 108 and the four first conductive parts 106 on the second connecting part 109 are arranged in a one-to-one correspondence, and the two first conductive parts 106 that are connected in a one-to-one correspondence are connected by a first transmission line 110. Combined with... Figure 17 , Figure 18 , Figure 19 and Figure 20 As shown, when the base 101, swing arm 103, and connector 104 are assembled, four electrical connection structures 105 can be formed, thereby enabling the transmission of four signals. It should be noted that, in order to easily distinguish between the first conductive part 106, the first transmission line 110, and the swing arm 103, the first conductive part 106 and the first transmission line 110 are represented by grid lines.

[0152] Figure 21 This is a simplified schematic diagram of the rotating shaft mechanism 100 in the embodiments of this application; Figure 22 It is along Figure 21 Sectional view of the middle FF line; Figure 23 It is along Figure 21 A cross-sectional view of the GG line, in which Figure 21 The rotating shaft mechanism 100 shown in the figure only illustrates half of the symmetrical form of the rotating shaft mechanism 100, combined with Figure 21 , Figure 22 and Figure 23As shown, in some embodiments, the first transmission line 110 forms an integral structure with the swing arm 103, the lead wire 115 forms an integral structure with the connector 104, and the second transmission line 113 forms an integral structure with the base 101. That is, when the swing arm 103, base 101, and connector 104 themselves act as conductors to transmit multiple signals, the swing arm 103 includes multiple first sub-blocks 141 and at least one insulating separation layer 142, with the multiple first sub-blocks 141 separated by the insulating separation layer 142; the base 101 includes multiple second sub-blocks... Block 143 and at least one insulating separation layer 142, with multiple second sub-blocks 143 separated by insulating separation layers 142; connector 104 includes multiple third sub-blocks 144 and at least one insulating separation layer 142, with multiple third sub-blocks 144 separated by insulating separation layers 142. The first sub-block 141 and insulating separation layer 142, the second sub-block 143 and insulating separation layer 142, and the third sub-block 144 and insulating separation layer 142 can all be fixed together using nano-injection molding or metal insert injection molding processes. The first sub-block 141 forms the first sub-line of the first transmission line 110, the second sub-block 143 forms the second sub-line of the second transmission line 113, and the third sub-block 144 forms the third sub-line of the lead-out line 115. That is, the first sub-block 141, the second sub-block 143, and the third sub-block 144 act as conductors to realize signal transmission. For example, in combination with... Figure 21 , Figure 22 and Figure 23 As shown, taking the transmission of two signals as an example, the swing arm 103 includes two first sub-blocks 141 and an insulating separation layer 142; the base 101 includes two second sub-blocks 143 and an insulating separation layer 142; the connector 104 includes two third sub-blocks 144 and an insulating separation layer 142; the second conductive part 107 includes two electrical contacts 128; each first sub-block 141 has an electrical connection metal layer 140 at the position in contact with the electrical contact 128; the electrical connection metal layer 140 and the first sub-block 141 are integrally structured. Thus, a conductive channel is formed by the first sub-block 141, the second sub-block 143, the third sub-block 144, an electrical contact 128 of the second conductive part 107 between the base 101 and the swing arm 103, and an electrical contact 128 of the second conductive part 107 between the swing arm 103 and the connector 104. (See also...) Figure 21 As shown, there are two conductive channels, namely the first channel 149 and the second channel 150, thereby enabling the transmission of two signals. It should be noted that an insulating layer is also required on the surfaces of the connector 104, the base 101, and the swing arm 103. This ensures insulation isolation at all locations except for the electrical connection between the electrical contact 128 and the electrical connection metal layer 140. The insulating layer can be an epoxy resin coating, a polyurethane coating, a ceramic coating, or a polytetrafluoroethylene coating. Of course, other insulating and wear-resistant coatings can also be used, and this application does not specifically limit the application to these materials.

[0153] Figure 24 This is another simplified schematic diagram of the rotating shaft mechanism 100 in the embodiments of this application. Figure 25 It is along Figure 24 A cross-sectional view of the middle HH line; combined with Figure 24 and Figure 25 As shown, in some embodiments, the second conductive part 107 includes an adapter plate 139 and an electrical contact 128. The adapter plate 139 is made of insulating material, and the adapter plate 139 is fixed on the connector 104 and the base 101 respectively. The first conductive part 106 is insulated from the swing arm 103, that is, the electrical connection metal layer 140 of the first conductive part 106 is insulated from the swing arm 103. The first transmission line 110 connected to the electrical connection metal layer 140 of the first conductive part 106 is integrated on the first circuit board 111. The electrical contact 128 on the base 101 is electrically connected to the second transmission line 113, and the second transmission line 113 is integrated on the second circuit board 151. The electrical contact 128 on the connector 104 is electrically connected to the lead wire 115, and the lead wire 115 is integrated on the third circuit board 116. For example, the first circuit board 111 can be attached to the surface of the swing arm 103 or embedded inside the swing arm 103; the second circuit board 151 can be attached to the surface of the base 101 or embedded inside the base 101; and the third circuit board 116 can be attached to the surface of the connector 104 or embedded inside the connector 104. The first circuit board 111, the second circuit board 151, and the third circuit board 116 can all be flexible circuit boards, rigid circuit boards, or rigid-flex circuit boards. Regardless of whether they are flexible circuit boards, rigid circuit boards, or rigid-flex circuit boards, they can all be double-sided circuit boards. Figure 26 This is a schematic diagram of a cross-section of the double-sided circuit board provided in an embodiment of this application; combined with Figure 24 and Figure 26 As shown, the double-sided circuit board includes a core board 145; conductive layers 146 are disposed on opposite sides of the core board 145, and the core board 145 has through holes 147, which are used to realize electrical connection between the conductive layers 146 on opposite sides of the core board 145. An ink layer or a cover film 148 may be disposed on the surface of the conductive layers 146 to protect the conductive layers 146, which are used to form a first transmission line 110, a second transmission line 113, or a lead-out line 115.

[0154] 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. The pivot mechanism in this application is not limited to electronic devices but can also be applied to robots or Extended Reality (XR) devices. In some possible implementations, the positional relationship between the first and second conductive parts between the swing arm and the connector can be reversed compared to the positional relationship between the first and second conductive parts between the swing arm and the base; that is, the second conductive part is disposed on the swing arm, while the first conductive part is disposed on the base and the connector. Furthermore, in some other possible implementations, a first conductive part and a second conductive part can also be provided between the two movably connected components in the rotating shaft mechanism, such as between the first component and the second component. This can also realize communication between the main circuit board and the sub-circuit board. In addition, when electronic components are provided in the rotating shaft mechanism, the first conductive part and the second conductive part can also be used to realize communication between the electronic components in the rotating shaft mechanism and other electronic components of the electronic device. The first component can be a swing arm, and the second component can be a door panel. The swing arm is provided with a first conductive part, and the door panel is provided with a second conductive part, or the swing arm is provided with a second conductive part, and the door panel is provided with a first conductive part. Alternatively, the first component can be a connector, and the second component can be a door panel. The connector is provided with a second conductive part, and the door panel is provided with a first conductive part, or the connector is provided with a first conductive part, and the door panel is provided with a second conductive part. The first transmission line or the second transmission line can be formed on the door panel using an insert process, or the door panel itself can be divided into multiple conductors using an insulating isolation structure to act as a signal transmission channel. The first transmission line or the second transmission line can realize the signal transmission channel by plating wires on the surface of the swing arm.

[0155] 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 swing arm, the swing arm including a first connecting part, the first connecting part being rotatably connected to the base; An electrical connection structure, the electrical connection structure including a first conductive part and a second conductive part, wherein the first conductive part and the second conductive part are in active contact; The first connecting part is equipped with the first conductive part, and the base is equipped with the second conductive part. During the rotation of the swing arm relative to the base, the first conductive part on the first connecting part can come into contact with the second conductive part on the base.

2. The rotating shaft mechanism as described in claim 1, characterized in that, The rotating shaft mechanism also includes a connecting member, and the swing arm is movably connected to the connecting member; The swing arm further includes a second connecting part, and the first connecting part is fixedly connected to the second connecting part; The second connecting part is equipped with the first conductive part, and the connector is equipped with the second conductive part; During the movement of the swing arm relative to the connector, the first conductive part on the second connecting part can come into contact with the second conductive part on the connector.

3. The rotating shaft mechanism as described in claim 2, characterized in that, The swing arm has a first mounting surface, the first conductive part is mounted on the first mounting surface, and the first mounting surface is perpendicular to the length direction of the rotating shaft mechanism; The base and the connector each have a second mounting surface, the second conductive part is mounted on the second mounting surface, and the second mounting surface is perpendicular to the length direction of the rotating shaft mechanism.

4. The rotating shaft mechanism as described in claim 3, characterized in that, The second conductive part includes an electrical contact, which includes a pin portion and a contact portion. The pin portion is fixedly connected to the contact portion and is fixed to the second mounting surface. The contact portion is capable of elastic deformation.

5. The rotating shaft mechanism as described in claim 4, characterized in that, The orthographic projection of the electrical contact in the preset plane is a fan-shaped ring, and the preset plane is perpendicular to the length direction of the rotating shaft mechanism; The second conductive portion includes one or more electrical contacts, wherein when the second conductive portion includes multiple electrical contacts, the multiple electrical contacts are spaced apart.

6. The rotating shaft mechanism as described in claim 4, characterized in that, The contact portion protrudes from the second mounting surface, and the contact portion has a contact plane that contacts the first conductive portion.

7. The rotating shaft mechanism as described in claim 4, characterized in that, The electrical contact includes two pin portions; in the electrical contact, one of the pin portions is connected to one end of the contact portion along its length, and the other pin portion is connected to the other end of the contact portion along its length.

8. The rotating shaft mechanism as described in claim 5, characterized in that, The second mounting surface has a first recessed groove, and the pin portion is fixed in the first recessed groove; The shape of the first recessed groove is adapted to the shape of the orthographic projection of the electrical contact in the preset plane.

9. The rotating shaft mechanism as described in claim 4, characterized in that, The second conductive part further includes an adapter plate, the electrical contact is fixed on the adapter plate, and the adapter plate is fixed on the second mounting surface.

10. The rotating shaft mechanism as described in claim 9, characterized in that, The adapter plate is made of organic substrate, ceramic substrate or metal substrate.

11. The rotating shaft mechanism as described in any one of claims 1-10, characterized in that, The electrical connection structure further includes a first transmission line, which is connected to the first conductive part on the swing arm.

12. The rotating shaft mechanism as described in claim 11, characterized in that, The first transmission line includes at least one first sub-line, the end of which is connected to the first conductive portion.

13. The rotating shaft mechanism as described in claim 11, characterized in that, The first transmission line is fixed to the surface of the swing arm; Alternatively, the first transmission line may be embedded inside the swing arm.

14. The rotating shaft mechanism as described in claim 11, characterized in that, The electrical connection structure further includes a first circuit board, on which the first transmission line is integrated; the first circuit board is mounted on the swing arm; The first circuit board is a flexible circuit board, a rigid circuit board, or a combination of flexible and rigid circuit boards.

15. The rotating shaft mechanism as described in any one of claims 1-10, characterized in that, The first connecting part is an arc-shaped structure, and the base has a first arc-shaped groove. The arc-shaped structure extends into the first arc-shaped groove so that the swing arm is rotatably connected to the base. The second conductive part is provided in the first arc-shaped groove.

16. The rotating shaft mechanism as described in any one of claims 2-10, characterized in that, The rotating shaft mechanism further includes a first pin, the second connecting part has a first pin hole, the connecting member has a second pin hole, and the first pin passes through the first pin hole and the second pin hole so that the swing arm is rotatably connected to the connecting member. The first conductive part is provided on the end face of the first pin hole, and the second conductive part is provided on the end face of the second pin hole.

17. The rotating shaft mechanism as described in any one of claims 1-10, characterized in that, The first conductive part includes an electrically connected metal layer, which is disposed on the swing arm and is in contact with the second conductive part.

18. A rotating shaft mechanism for use in electronic equipment, characterized in that, include: First component; The second component is movably connected to the first component; An electrical connection structure includes a first conductive part and a second conductive part, which are in movable contact with each other. The first conductive part is mounted on a first component, and the second conductive part is mounted on a second component. During the movement of the first component relative to the second component, the first conductive part on the first component comes into contact with the second conductive part on the second component. Wherein, the first component is a swing arm and the second component is a door panel; or, the first component is a connector and the second component is a door panel.

19. An electronic device, characterized in that, include: The flexible display screen, the housing, and the pivot mechanism as described in any one of claims 1-18, 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.

20. The electronic device as claimed in claim 19, characterized in that, The electronic device further includes a main circuit board and a secondary circuit board. The main circuit board is mounted on the first sub-shell, and the secondary circuit board is mounted on the second sub-shell. The main circuit board and the secondary circuit board are electrically connected through the electrical connection structure.

21. The electronic device as claimed in claim 20, characterized in that, The electronic device also includes a through-shaft flexible circuit board, which passes through the rotating shaft mechanism, and the main circuit board and the sub-circuit board are electrically connected through the through-shaft flexible circuit board.

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