Support assembly, protection mechanism, motor assembly and electronic device

Abstract

The application provides a support assembly, a protection mechanism, a motor assembly and an electronic device. The support assembly comprises a rotating shaft mechanism and a support part. The rotating shaft mechanism comprises a rotating assembly, and the rotating assembly comprises a first fixing member, a second fixing member, a connecting member and a connecting rod assembly. The first fixing member and the second fixing member are located on the same side of the connecting member. An end face of the first fixing member towards the second fixing member is provided with a first sliding groove, and an end face of the second fixing member towards the first fixing member is provided with a second sliding groove. The support part comprises a first support plate, a second support plate and a third support plate, and the second support plate is rotationally connected with the first support plate and the third support plate. The first support plate is fixed with the connecting member. When the first support plate rotates around the rotating shaft mechanism, the connecting rod assembly slides along the first sliding groove and the second sliding groove, the connecting member rotates around the connecting rod assembly, and the third support plate can slide in a direction towards or away from the rotating shaft mechanism, so that the support part can form a stable support structure and the structural stability of the support assembly is improved.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and in particular to a support component, a protection mechanism, a motor assembly, and an electronic device. Background Technology

[0002] Current foldable electronic devices, such as laptops and 2-in-1 devices, typically require manual unfolding and power-on to open. They can only be used by entering a keyboard or logging in with a biometric fingerprint. This process involves many steps and takes a long time, resulting in a poor user experience.

[0003] With the rapid development of foldable electronic devices, users are placing increasingly higher demands on the user experience. Besides the poor user experience caused by cumbersome operation processes, factors such as the feel and safety of manually unfolding or closing foldable electronic devices, the stable support of the device in the unfolded state, and the overall thickness of the device in the closed state are all important factors affecting the user experience.

[0004] Therefore, improving the user experience of foldable electronic devices has become a pressing problem for those skilled in the art. Summary of the Invention

[0005] This application provides a support component, a protection mechanism, a motor assembly, and an electronic device to improve the user experience.

[0006] In a first aspect, a support assembly is provided, applicable to foldable electronic devices. The support assembly may include a pivot mechanism and a support portion. The pivot mechanism may include a rotating component that is linked to the support portion. Specifically, the rotating component includes a first fixing member, a second fixing member, a connecting member, and a linkage assembly. The first and second fixing members serve as a support base for the entire rotating assembly, are spaced apart, and are located on the same side of the connecting member. Furthermore, the end face of the first fixing member facing the second fixing member has a first groove, and the end face of the second fixing member facing the first fixing member has a second groove. The connecting member is rotatably connected to the linkage assembly, and the linkage assembly can slide along the first and second grooves. Specifically, the support portion includes a first support plate, a second support plate, and a third support plate arranged around the pivot mechanism. The second support plate is located between the first and third support plates and is rotatably connected to both the first and third support plates. One end of the first support plate is fixedly connected to the connector. Thus, when the first support plate rotates around the rotating shaft mechanism, the connecting rod assembly can slide along the first and second sliding grooves. Then, the connector rotates around the connecting rod assembly, allowing the third support plate to slide in a direction toward or away from the rotating shaft mechanism.

[0007] By using the support assembly provided in this application, the motion trajectory of the connecting rod assembly can be set by designing the specific shapes of the first and second slide grooves. Since the connecting member is rotatably connected to the connecting rod assembly, the connecting member can move along the set motion trajectory while the connecting rod assembly moves along it. Furthermore, since the first support plate and the connecting member are fixedly connected, the first support plate can move along the set trajectory while the connecting rod moves along it, thereby driving the second support plate to rotate and causing the third support plate to slide along the set trajectory in a direction toward or away from the rotating shaft mechanism. It is worth mentioning that during the movement of the first support plate and the sliding of the third support plate toward or away from the rotating shaft mechanism, a triangular support structure can be formed around the rotating shaft mechanism among the first, second, and third support plates. This can improve the support stability of the support part, thereby improving the structural reliability of the support assembly.

[0008] In one possible implementation of this application, the rotating assembly may further include a main shaft, which passes through the first fixed member, the connecting rod assembly, and the second fixed member. The main shaft is rotatably connected to the first and second fixed members, and during its rotation relative to them, it can drive the connecting rod assembly to slide along the first and second slide grooves, thereby causing the connecting member to rotate.

[0009] In addition, the rotating shaft mechanism may also include a cam and an auxiliary support mechanism. Along the radial direction of the main shaft, the cam is fixed relative to the main shaft, allowing the main shaft to drive the cam to rotate synchronously during rotation. A cam groove may also be provided on the surface of the cam, with one end of the auxiliary support mechanism housed in the cam groove and the other end connected to a third support plate. During the rotation of the main shaft, one end of the auxiliary support mechanism slides along the cam groove, driving the third support plate to slide in a direction toward or away from the rotating shaft mechanism, thereby improving the stability of the third support plate's sliding motion and thus enhancing the overall stability of the support mechanism's movement.

[0010] In one possible implementation of this application, the rotating shaft mechanism may include two rotating components spaced apart, with a cam corresponding to each rotating component. In this implementation, an auxiliary support mechanism may be located between the two rotating components. Specifically, the auxiliary support mechanism may include a first support rod and a second support rod, which are intersected and hinged at their midpoints. Furthermore, one end of the first support rod is housed in a cam groove, and the other end is hinged to a third support plate; one end of the second support rod is housed in another cam groove, and the other end is hinged to the third support plate. By intersecting the first and second support rods of the auxiliary support mechanism, as the third support plate slides away from the rotating shaft mechanism, the two support rods rotate around their hinge point. Simultaneously, through a reasonable design of the cam grooves, the motion trajectory of the two support rods can be designed, enabling them to push the third support plate to slide away from the rotating shaft mechanism, thereby improving the stability of the third support plate's sliding.

[0011] In one possible implementation of this application, the support assembly may further include a keyboard body, and the aforementioned support portion may be rotatably connected to the keyboard body via a pivot mechanism. Therefore, the sliding of the third support plate in a direction toward or away from the pivot mechanism can also be understood as the third support plate sliding in a direction toward or away from the keyboard body. Furthermore, a receiving cavity may be provided on the keyboard body, and at least a portion of the third support plate may be accommodated in the receiving cavity, allowing the third support plate to slide within the receiving cavity. This improves the sliding stability of the third support plate while also allowing it to be concealed within the keyboard body, thereby enhancing the aesthetic appearance of the support assembly.

[0012] In this application, the third support plate specifically comprises a fixedly connected arc-shaped segment and a straight segment. The arc-shaped segment is located between the second support plate and the straight segment, and the second support plate is rotatably connected to the arc-shaped segment. When the third support plate slides towards the keyboard body, the arc-shaped segment can cover the hinge mechanism to prevent it from being exposed, thus protecting the hinge mechanism and improving the aesthetic appearance of the support assembly. Furthermore, at least a portion of the straight segment of the third support plate can be accommodated in a receiving cavity to guide the sliding of the third support plate.

[0013] In one possible implementation of this application, the support assembly may further include a host support member, which is fixedly connected to the connector. The host support member is located on the side of the first support plate facing the keyboard body, and is fixedly connected to the end of the first support plate facing the connector. This host support member can be used to support the host computer mounted on the support assembly. Furthermore, the surface of the host support member that contacts the host computer can be configured as a curved surface to improve the reliability of the connection between the host computer and the host support member.

[0014] In this application, the linkage assembly may include a first link and a second link. The first link is located between the connecting member and the second link, and the second link is located between the first fixing member and the second fixing member. A main shaft passes through the second link. In the radial direction of the main shaft, the main shaft and the second link are relatively fixed so that the second link can rotate synchronously during the rotation of the main shaft. Furthermore, one end of the first link is rotatably connected to the connecting member, and the other end is rotatably connected to the second link. One end of the rotating shaft rotatably connecting the first and second links is located in the first slide groove, and the other end is located in the second slide groove. Thus, the linkage assembly can slide along the first and second slide grooves, thereby driving the connecting member to rotate, by sliding the rotating shaft rotatably connecting the first and second links within the first and second slide grooves.

[0015] In the specific installation of the connector, the connector may include a body portion having a first side and a second side disposed opposite to each other. The first side is provided with a first mounting portion, a second mounting portion, and a third mounting portion, with the first mounting portion and the second mounting portion spaced apart. The body portion includes a first surface and a second surface disposed opposite to each other, with the first mounting portion and the second mounting portion extending in a direction away from the second surface. The third mounting portion is located on the second surface and extends from the first side toward the second side.

[0016] In this application, the rotating assembly may further include intermediate connecting rods, and there may be two intermediate connecting rods. One end of one intermediate connecting rod is rotatably connected to the first mounting part, and the other end is rotatably connected to the first fixing member. The other intermediate connecting rod is rotatably connected to the second mounting part, and the other end is rotatably connected to the second fixing member, so that the body of the rotating assembly can be rotatably connected to the two fixing members through the two intermediate connecting rods. In addition, the end of the first connecting rod facing the connecting member is rotatably connected to the end of the third mounting part away from the first side. Since the pivot connecting the first and second connecting rods slides in the first and second slide grooves, by designing the trajectory of the first and second slide grooves, the first connecting rod can move according to a set motion trajectory, thereby realizing that the connecting member can rotate around the first connecting rod according to the set trajectory.

[0017] In one possible implementation of this application, the first support plate may be fixedly connected to the first surface of the connector. This allows the first support plate to rotate along the same trajectory as the connector.

[0018] When using the support assembly provided in this application in electronic devices, different users have personalized requirements for the unfolding angle of the electronic devices. To meet the diverse user requirements, this application also allows the first support plate to be suspended at a certain rotational position without external force under the action of damping force, so that the included angle between the first and third support plates meets the user's requirements. In a specific implementation, the rotating assembly may further include a first elastic element, which is disposed on the side of the first fixed member opposite to the second fixed member. The elastic force generated by the first elastic element along the axis of the main shaft can act on the first fixed member.

[0019] In addition, the rotating assembly also includes a first extrusion structure, which can be located between the first fixed member and the first elastic member. The first extrusion structure can be sleeved on the main shaft, and is relatively fixed to the main shaft in the radial direction. When the first extrusion structure rotates with the main shaft, the deformation of the first elastic member changes. Since the main shaft and the first fixed member are rotatably connected, the first extrusion mechanism and the main shaft can rotate synchronously. Therefore, during the rotation of the main shaft, the first extrusion mechanism and the first fixed member can rotate relative to each other. The change in the deformation of the first elastic member changes the elastic force acting on the first extrusion structure, thereby changing the extrusion force between the first extrusion mechanism and the first fixed member. This changes the damping force generated by sliding friction between the first extrusion mechanism and the first fixed member, thus improving the user's feel. Furthermore, when the external force is removed, the first extrusion mechanism and the first fixed member can stop rotating relative to each other under the action of the damping force generated between them, thereby suspending the support assembly at the corresponding rotation position.

[0020] In this application, to ensure the support assembly can stably remain at a predetermined rotational position, the rotating assembly may further include a second pressing structure. This second pressing structure is located between the first pressing structure and the first fixing member, and is sleeved on the main shaft, with the main shaft and the second pressing structure rotatably connected. Additionally, a first elastic member presses the first pressing structure against the second pressing structure. The end face of the first pressing structure facing the first fixing member has a first groove, and the end face of the second pressing structure facing the first pressing structure has a first protrusion. It is understood that when the first protrusion falls into the first groove, the total length of the first and second pressing structures is minimized along the axial direction of the main shaft. At this time, the deformation of the first elastic member is minimized, resulting in a smaller damping force between the first and second pressing structures. Conversely, when the first protrusion is outside the first groove, the total length of the first and second pressing structures is maximized along the axial direction of the main shaft. At this time, the deformation of the first elastic member is maximized, resulting in a larger damping force between the first and second pressing structures. Therefore, by adjusting the positions of the first cam and the second groove, the damping force generated between the first extrusion structure and the second extrusion structure can be adjusted, thereby adjusting the hovering position of the support component.

[0021] In one possible implementation of this application, the rotating assembly may further include a second elastic element. This second elastic element may be disposed on the side of the second fixed member opposite to the first fixed member. Alternatively, the second connecting rod may have a recessed area, and the second elastic element may be disposed within this recessed area. Furthermore, the second elastic element is sleeved on the main shaft, with one end fixedly connected to the main shaft and the other end fixedly connected to the second fixed member. Since the main shaft can rotate around the second fixed member, during the rotation of the main shaft, the second elastic element can generate an elastic force in the axial direction of the main shaft. This elastic force can provide a corresponding tactile feel during the user's rotation of the support assembly, thereby improving the user experience.

[0022] In this application, the support assembly may further include a keyboard body, and the support and the keyboard body are rotatably connected via a hinge assembly. Additionally, the keyboard body includes a hinge connector, a frame assembly, and keys. The hinge connector can move with the movement of the hinge mechanism; specifically, when the hinge mechanism moves, it can drive the hinge connector to move in a direction toward or away from the hinge mechanism. In this application, the keys can be arranged in multiple rows side-by-side, with each row including multiple keys, and the number of keys in each row can be the same or different, without specific limitation in this application. The keyboard body also has key slots, and the keys can be accommodated in the corresponding key slots. Furthermore, the frame assembly may specifically include a first frame, a second frame, and a crossbar. The first and second frames can be arranged opposite each other, and the first and second frames are fixedly connected to the hinge connector, so that when the hinge connector moves, the first and second frames can move with the hinge connector in a direction toward or away from the hinge mechanism. The aforementioned multiple rows of keys can be located between the first and second frames, and each row of keys can be arranged along the direction from the first frame to the second frame. Each row of keys can be equipped with a crossbar. When the first and second frame edges move toward or away from the pivot mechanism, the crossbar moves along the arrangement direction of each row of keys. Furthermore, the keys can move into the key slots or protrude from the key slots as the crossbar moves. Therefore, when the keyboard is in use, the keys can move to a set travel distance towards protruding from the key slots to meet the user's typing input requirements. Additionally, when the keyboard is not in use, the keys can move into the key slots, thus minimizing the portion of the keys protruding from the key slots and reducing the overall thickness of the keyboard, which facilitates a thinner design for the support components.

[0023] In order for the hinge mechanism to drive the hinge connector to rotate, in one possible implementation of this application, the rotating assembly may further include a third link, which is slidably connected to the second fixed member. During the rotation of the spindle, the third link can slide in a direction closer to or away from the keyboard body. Based on this, the hinge connector can be fixedly connected to the third link, so that the sliding of the third link drives the hinge connector to slide in a direction closer to or away from the keyboard body.

[0024] Furthermore, to improve the stability of the sliding of the third link, in this application, the second fixing member can be provided with a slide rail, so that the third link can be accommodated in the slide rail and can slide along the slide rail. The slide rail can then provide guidance for the sliding of the third link, thereby improving the reliability of the sliding of the third link.

[0025] The rotating assembly may also be provided with a fourth link, which is fixedly connected to the second fixing member. The connection method may be, but is not limited to, fastening with screws or other fasteners. In addition, the fourth link may be located on the outside of the slide rail, limiting the third link to the slide rail, thereby preventing the third link from falling out of the slide rail and improving the reliability of the sliding connection between the third link and the second fixing member.

[0026] Secondly, an electronic device is provided, which may include a main unit and a support assembly as described in the first aspect, wherein the main unit is detachably connected to a first support plate. Using the electronic device provided by this application, the main unit can move along a predetermined trajectory with the first support plate. Furthermore, during the movement of the first support plate and the sliding of the third support plate in a direction toward or away from the rotating shaft mechanism, a triangular support structure can be formed between the first support plate, the second support plate, and the third support plate around the rotating shaft mechanism. This can improve the support stability of the support portion for the main unit, thereby improving the structural reliability of the electronic device.

[0027] The host device can be a user terminal including a display screen and a processor, such as a tablet computer or a mobile phone. When the host device and the supporting components are integrated, the electronic device becomes a user terminal with the folding and supporting functions that the supporting components can achieve.

[0028] Thirdly, a protection mechanism is provided, comprising a mounting frame, a first rotating shaft assembly, a second rotating shaft assembly, a first adapter, and a motor connector. The mounting frame serves as the base for the entire protection mechanism, providing support. Specifically, the mounting frame may include a first fixing plate and a second fixing plate, which are positioned opposite each other to form an installation space between them.

[0029] Both the first and second rotating shaft assemblies are located in the installation space. The first rotating shaft assembly may include a first shaft and a first gear component. One end of the first shaft is fixed to a first fixed plate, and the other end is fixed to a second fixed plate. The first gear component is sleeved on the first shaft and can rotate around the first shaft. The second rotating shaft assembly includes a second shaft and a second gear component. One end of the second shaft is fixed to the first fixed plate, and the other end extends toward the second fixed plate. The second gear component is sleeved on the second shaft and can rotate around the second shaft. Additionally, a first adapter is located between the second gear component and the second fixed plate, and the first adapter is sleeved on the second shaft.

[0030] In this application, at least a portion of the motor connector is located on the side of the first adapter that is away from the first fixed plate. The motor connector includes a rotation center member, the end of the second shaft facing the second fixed plate is inserted into the rotation center member, and the end of the rotation center member away from the first adapter member passes through the second fixed plate. The rotation center member can be used to connect to a motor.

[0031] Using the protection mechanism provided in this application, when the motor drives the rotating center component to rotate, and the torque acting on the first adapter is less than the connecting force between the first adapter and the rotating center component, the first adapter connects to the motor connector. At this time, the first adapter can rotate synchronously with the rotating center component. Furthermore, the rotation of the first adapter can drive the first gear component to rotate around the first shaft, and the torque of the first gear component's rotation can be transmitted to the second shaft assembly. When the torque acting on the second shaft assembly is transmitted to the first adapter through the first gear component, and the torque acting on the first adapter is greater than the connecting force between the first adapter and the rotating center component, the connection between the first adapter and the motor connector can be disconnected to prevent this torque, which is greater than the connecting force between the first adapter and the rotating center component, from acting on the rotating center component, thereby protecting the motor connected to the rotating center component.

[0032] In the specific configuration of the first gear component, along the direction from the first fixed plate to the second fixed plate, the first gear component may include a first gear structure and a second gear structure, which are spaced apart. In the specific configuration of the second gear component, the second gear component may include a third gear structure, which can mesh with the first gear structure. Additionally, the first adapter may include a fourth gear structure, which meshes with the second gear structure. Thus, when the first adapter drives the first gear component to rotate around the first axis, the first gear component slides along the direction from the first fixed plate to the second fixed plate, causing the third gear structure to disengage from the first gear structure. When the third gear structure disengages from the first gear structure, the rotational torque of the first gear component is no longer transmitted to the third gear structure, and the second gear component stops rotating. In this application, the state in which the third gear structure disengages from the first gear structure can be the state when the motor drives the protection mechanism to extend to its maximum angle.

[0033] As described above, the first adapter and the rotating center can be connected or disconnected. This connection or disconnection can be achieved through specific structural design. In practice, the first adapter can have a receiving cavity with its opening facing the motor connector, and the rotating center can be inserted into the receiving cavity. The first adapter can also include a first elastic element and a rolling element, both housed within the receiving cavity. One end of the first elastic element abuts against the rotating center, while the other end presses the rolling element against the bottom wall of the receiving cavity.

[0034] Additionally, a groove can be provided on the bottom wall of the receiving cavity of the first adapter. When the rolling element is housed in the groove, the first adapter and the rotating center are connected, allowing the first adapter to rotate synchronously with the rotating center. When the rolling element disengages from the groove, the connection between the first adapter and the rotating center is broken. In this state, the rotational torque of the first adapter cannot be transmitted to the rotating center, causing the rotating center to stop rotating.

[0035] In one possible implementation of this application, the end of the second gear component facing the first fixed plate may also be provided with a first stop portion, which has a notch. The second rotating shaft assembly may further include a fixed pin and a sliding pin, which are located on the side of the second gear component facing the first fixed plate. The fixed pin is sleeved on the second shaft and is rotatably connected to the second shaft. The sliding pin is disposed between the fixed pin and the first stop portion, with one end of the sliding pin facing the fixed pin slidably connected to the fixed pin, and the other end of the sliding pin facing away from the fixed pin having a second stop portion, which can be inserted into the notch. When the second stop portion of the sliding pin is inserted into the notch, rotation of the second gear component can drive the sliding pin to rotate, thereby driving the fixed pin to rotate.

[0036] In one possible implementation of this application, a shim can be provided between the sliding pin and the second gear component, with both the sliding pin and the second gear component abutting against the shim. This allows for the generation of a certain damping force between the sliding pin and the second gear component when they rotate relative to each other, thereby improving the user experience.

[0037] To enable the first gear to slide along the first shaft, a guide groove structure can be provided on the first gear in this application. This guide groove structure can be located between the first gear and the first fixed plate. The guide groove structure can have a guide groove, which can be spiral-shaped. Additionally, the fixing pin can have a guide structure that can be inserted into the guide groove. Thus, when the fixing pin rotates, the guide structure can slide within the guide groove. Since the guide groove can be spiral-shaped, the sliding of the guide structure within the guide groove can drive the first gear to slide axially along the first shaft, thereby disengaging the third gear from the first gear. Furthermore, during the rotation of the fixing pin, the sliding pin can slide along with the first gear, and the sliding direction of the sliding pin can be opposite to that of the first gear.

[0038] In one possible implementation of this application, the first rotating shaft assembly may further include an assist mechanism, one end of which may be fixedly connected to the first gear component, and the other end of which may be fixedly connected to the first shaft. Thus, by rationally designing the assist mechanism, it can be used to provide assistance for the sliding of the first gear component along the first shaft, thereby improving the reliability of the sliding of the first gear component.

[0039] Fourthly, a motor assembly is provided that includes the protection mechanism described in the third aspect above.

[0040] Fifthly, an electronic device is provided, comprising a first housing, a second housing, a rotating assembly, and a motor assembly as described in the fourth aspect. The first and second housings are located on opposite sides of the rotating assembly, and when the motor rotates, it drives the first and second housings to rotate relative to the rotating assembly. Using the electronic device provided in this application, the motor drives the first and second housings to rotate relative to the rotating assembly, thereby achieving the electric opening and closing of the electronic device. This simplifies the user's operation steps for opening and closing the electronic device and improves the user experience.

[0041] The electronic device can be a user terminal including a display screen and a processor, such as a laptop, tablet, or mobile phone. The first housing can be used to mount the display screen of the electronic device or to support a host computer with a display screen. The second housing can be used to support the keyboard body. This keyboard body can be the keyboard body mentioned in the first aspect above. The rotating assembly can be the rotating assembly mentioned in the first aspect above.

[0042] In one possible implementation of this application, the rotating component is located on the side of the first fixed plate opposite to the second fixed plate; and the rotating component rotates synchronously with the second rotating shaft assembly.

[0043] In one possible implementation of this application, the electronic device further includes a second adapter located between the first fixed plate and the rotating assembly, the rotating assembly being connected to the second rotating shaft assembly via the second adapter.

[0044] Sixthly, a keyboard assembly is provided, which may include a keyboard body. The keyboard body includes a hinge connector, a frame assembly, and keys. The hinge connector is connected to a hinge mechanism, and the hinge connector can move with the movement of the hinge mechanism. Specifically, when the hinge mechanism moves, it can drive the hinge connector to move in a direction toward or away from the hinge mechanism. In this application, the keys can be arranged in multiple rows side by side, with each row including multiple keys, and the number of keys in each row can be the same or different, which is not specifically limited in this application. The keyboard body is also provided with key slots, and the keys can be accommodated in the corresponding key slots. In addition, the frame assembly may include a first frame, a second frame, and a crossbar. The first frame and the second frame can be arranged opposite to each other, and the first frame and the second frame are fixedly connected to the hinge connector, so that when the hinge connector moves, the first frame and the second frame can move with the hinge connector in a direction toward or away from the hinge mechanism. The above-mentioned multiple rows of keys can be located between the first frame and the second frame, and each row of keys can be arranged in a direction from the first frame to the second frame. Each row of keys can be equipped with a crossbar. When the first and second frame edges move toward or away from the pivot mechanism relative to the pivot joint, the crossbar can move along the arrangement direction of each row of keys. Furthermore, the keys can move into the key slot or protrude from the key slot as the crossbar moves. Based on this, when the keyboard assembly is in use, the keys can be moved to a set travel distance towards protruding from the key slot to meet the user's typing input requirements. Additionally, when the keyboard assembly is not in use, the keys can be moved into the key slot, thus minimizing the portion of the keys protruding from the key slot and reducing the overall thickness of the keyboard assembly, facilitating a thinner keyboard design.

[0045] In this application, the first frame can include a first inner frame and a first outer frame. The first outer frame is fixedly connected to the hinge connector, and the first inner frame is located on the side of the first outer frame facing the keys. The first outer frame and the first inner frame are linked. In a specific implementation, a first connecting rod assembly is provided between the first inner frame and the first outer frame. The first connecting rod assembly includes a first connecting rod and a second connecting rod. One end of the first connecting rod is hinged to the first inner frame, and the other end is hinged to the first outer frame. One end of the second connecting rod is hinged to the rod body of the first connecting rod, and the other end is hinged to a structural member fixed in position on the keyboard body. Thus, as the hinge connector moves in a direction toward or away from the hinge mechanism, it can drive the first outer frame to move in the same direction, thereby driving the first inner frame to move in a direction closer to or away from the first outer frame.

[0046] Similarly, in the specific design of the second frame, the second frame can include a second inner frame and a second outer frame. The second outer frame is fixedly connected to the hinge connector, and the second inner frame is located on the side of the second outer frame facing the keys. The second outer frame and the second inner frame can move together. In a specific implementation, a second connecting rod assembly is provided between the second inner frame and the second outer frame. The second connecting rod assembly includes a third connecting rod and a fourth connecting rod. One end of the third connecting rod is hinged to the second inner frame, and the other end is hinged to the second outer frame. One end of the fourth connecting rod is hinged to the rod body of the third connecting rod, and the other end is hinged to a structural component fixed in position on the keyboard body. Thus, as the hinge connector moves in a direction toward or away from the hinge mechanism, it can drive the second outer frame to move in the same direction, thereby driving the second inner frame to move in a direction closer to or away from the first outer frame.

[0047] In this application, as the first and second outer frames rotate with the rotating mechanism and move in a direction toward or away from the rotating shaft mechanism, they can drive the first and second inner frames to move in the same direction as the arrangement of each row of buttons. This allows one end of the crossbar to be fixedly connected to the first inner frame and the other end to the second inner frame, thus enabling the crossbar to move along the arrangement of each row of buttons.

[0048] Furthermore, during the movement of the crossbar along the arrangement direction of each row of keys, in order to enable the keys to move into the key slots or protrude from the key slots along with the movement of the crossbar, in one possible implementation of this application, the keys may include keycaps and a lifting mechanism. The lifting mechanism may be located in the key slot, the keycaps may cover the lifting mechanism, and the lifting mechanism may be used to drive the keycaps to reciprocate in the direction toward or out of the key slots. In addition, a first abutting structure is provided on the crossbar, and a second abutting structure is provided on the lifting mechanism. During the movement of each crossbar along the arrangement direction of the keys, the first abutting structure may push the second abutting structure of the corresponding row of keys, thereby pressing the lifting mechanism against the key slots, and the key slots will then move into the key slots under the action of the lifting mechanism. It is understood that when the pressing force between the first abutting structure and the second abutting structure is removed, the lifting mechanism may rise in the direction out of the key slots, thereby driving the keycaps to move in the direction out of the key slots.

[0049] In this application, the keyboard body may be provided with multiple key slots, and the crossbar may be provided with multiple first abutment structures. Each key slot may accommodate at least one abutment structure; for example, each key slot may accommodate two abutment structures. This facilitates the application of a stable compressive force to the lifting mechanism.

[0050] The first and second abutting structures can transmit force through surface contact to improve the reliability of their contact. For example, the first abutting structure can have a first inclined surface, and the second abutting structure can have a second inclined surface, with the first and second inclined surfaces positioned opposite each other. Thus, when the crossbar moves along the arrangement direction of each row of buttons, the first inclined surface can contact the second inclined surface, allowing the lifting mechanism to move into the button slot.

[0051] In one possible implementation of this application, in order for the hinge mechanism to drive the hinge connector to move, the hinge mechanism may include a rotating assembly, which may include a spindle and a connecting rod. As the spindle rotates, the connecting rod slides in a direction closer to or away from the keyboard body. This allows the hinge connector to be fixedly connected to the connecting rod, thereby enabling the connecting rod to drive the hinge connector to slide in a direction closer to or away from the keyboard body.

[0052] In this application, to achieve the sliding of the connecting rod, the rotating assembly may also include a fixing member, with the spindle rotatably connected to the fixing member and the connecting rod slidably connected to the fixing member. Additionally, the spindle is provided with a stop portion, and the end face of the stop portion facing the connecting rod has a track groove. Correspondingly, the connecting rod has a connecting portion that is inserted into the track groove. Thus, during the rotation of the spindle, the connecting portion can slide within the track groove, thereby pushing the connecting rod to slide in a direction closer to or away from the keyboard body.

[0053] Besides the methods described above, the sliding of the connecting rod can also be achieved in other possible ways. For example, the rotating assembly may further include a rocker arm structure sleeved on the main shaft. The rocker arm structure is fixedly connected to the main shaft in the radial direction and has a protrusion. Additionally, the connecting rod has a connecting portion with a track groove, which has a recess. Thus, as the rocker arm structure rotates with the main shaft, it can drive the protrusion to slide along the track groove, and when the protrusion extends into the recess, it can push the connecting rod to slide within the groove in a direction close to or away from the keyboard body.

[0054] In a seventh aspect, an electronic device is provided, comprising a host and a keyboard assembly as described in the sixth aspect, wherein the host and the keyboard body are rotatably connected via a hinge mechanism. In this application, the hinge mechanism is fixedly connected to the keyboard body. Using the electronic device provided in this application, when the electronic device is unfolded, the keys can move to a set travel distance towards the direction exposed in the key slot to meet the user's input requirements via keystrokes. Furthermore, when the electronic device is closed, the keys can move towards the key slot, thereby reducing the portion of the keys exposed in the key slot and thus reducing the overall thickness dimension of the keyboard assembly, which facilitates a thinner design of the keyboard assembly, thereby enabling a thinner design of the electronic device in this state.

[0055] Eighthly, an electronic device is provided, comprising a display screen and a keyboard assembly as described in the sixth aspect. The display screen and the keyboard body are rotatably connected via a hinge mechanism. In this application, the hinge mechanism can be fixedly connected to the keyboard body, thus the hinge mechanism can be part of the keyboard assembly. Alternatively, the hinge mechanism may not be part of the keyboard assembly but rather a structure of the electronic device. Using the electronic device provided in this application, when the electronic device is unfolded, the keys can move to a set travel distance towards the key slots to meet the user's input requirements via keystrokes. Furthermore, when the electronic device is closed, the keys can move towards the key slots, thereby reducing the portion of the keys exposed in the key slots and thus reducing the overall thickness dimension of the keyboard assembly, facilitating a thinner design for the keyboard assembly, and consequently enabling a thinner design for the electronic device in this state. Attached Figure Description

[0056] Figure 1 A schematic diagram of the structure of a conventional two-in-one product provided in an embodiment of this application;

[0057] Figure 2 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application;

[0058] Figure 3a This is a schematic diagram of the structure of a keyboard assembly provided in one embodiment of this application;

[0059] Figure 3b A cross-sectional view of a keyboard assembly provided in an embodiment of this application;

[0060] Figures 4a to 4e for Figure 2 Schematic diagrams of the provided electronic device in different folded states;

[0061] Figure 5 A schematic cross-sectional view of a keyboard assembly in a closed state according to an embodiment of this application;

[0062] Figure 6a and Figure 6b This is a schematic diagram of the structure of a rotating assembly provided in an embodiment of this application;

[0063] Figure 7 An exploded view of a rotating assembly provided in an embodiment of this application;

[0064] Figure 8a for Figure 6a A cross-sectional view of the rotating assembly at point AA shown;

[0065] Figures 8b to 8d Cross-sectional views of a rotating assembly provided in an embodiment of this application in different folding states;

[0066] Figure 9 This is a schematic diagram of the structure of the first extrusion structure provided in an embodiment of this application;

[0067] Figure 10 This is a schematic diagram of the structure of a rotating assembly provided in another embodiment of this application;

[0068] Figure 11a for Figure 10 Cross-sectional view at point BB;

[0069] Figure 11b This is a cross-sectional view of a rotating assembly provided in an embodiment of this application when it is in a closed state;

[0070] Figure 12 A partial structural schematic diagram of a keyboard body provided in an embodiment of this application;

[0071] Figure 13a This is a schematic diagram of the overall structure of the keyboard body provided in one embodiment of this application;

[0072] Figure 13b for Figure 13a A schematic diagram of the keyboard body from another angle;

[0073] Figure 14 A partial structural schematic diagram of a keyboard body provided in an embodiment of this application;

[0074] Figure 15 for Figure 14 A structural schematic diagram of the keyboard body from another angle;

[0075] Figure 16 for Figure 15 A magnified view of a portion of the keyboard body shown;

[0076] Figure 17 for Figure 16 Enlarged view of the local structure at point C;

[0077] Figure 18 The relative positional relationship between the first connecting rod and the second connecting rod when the keyboard assembly is in the closed state;

[0078] Figure 19 A partial enlarged view of the crossbar structure provided in an embodiment of this application;

[0079] Figure 20 A schematic diagram of a structure for mounting a crossbar to the keyboard body according to an embodiment of this application;

[0080] Figure 21 This is a schematic diagram of the lifting mechanism provided in one embodiment of this application;

[0081] Figure 22 The relationship between the crossbar and the keys when the keyboard assembly provided in one embodiment of this application is in the unfolded state;

[0082] Figure 23 The interaction between the crossbar and the keys when the keyboard assembly provided in one embodiment of this application is in the closed state;

[0083] Figure 24 This is a schematic diagram of the structure of a rotating shaft mechanism provided in an embodiment of this application;

[0084] Figure 25a A partial structural diagram of a keyboard assembly in a closed state according to an embodiment of this application;

[0085] Figure 25b for Figure 25a A schematic diagram of the fourth support plate of the support part in the keyboard assembly in the unfolded state;

[0086] Figure 26 This is a schematic diagram of the structure of a rotating shaft mechanism provided in an embodiment of this application;

[0087] Figure 27 A schematic diagram of the structure of the protection mechanism provided in one embodiment of this application;

[0088] Figure 28 for Figure 27 The exploded view of the protective mechanism shown;

[0089] Figure 29a for Figure 27 The protection mechanism shown is viewed from direction D.

[0090] Figure 29b for Figure 29a The protection mechanism shown is viewed from direction E.

[0091] Figure 30a A schematic diagram of the protective mechanism for a keyboard assembly in an unfolded state, according to an embodiment of this application;

[0092] Figure 30b for Figure 30a The protection mechanism shown is viewed from direction F.

[0093] Figure 31 A cross-sectional view of a protection mechanism provided in an embodiment of this application;

[0094] Figure 32a and Figure 32b This is a schematic diagram of the structure of a rotating assembly provided in another embodiment of this application;

[0095] Figure 33 for Figure 32a An exploded view of the rotating assembly shown;

[0096] Figure 34 This is a schematic diagram of the second extrusion structure provided in an embodiment of this application;

[0097] Figure 35 for Figure 32a A schematic diagram of the rotating assembly at another angle is shown.

[0098] Figure 36a for Figure 35 A cross-sectional view of the rotating assembly at point GG shown;

[0099] Figure 36b and Figure 36c Cross-sectional views of the rotating assembly in different folding states according to another embodiment of this application.

[0100] Figure label:

[0101] 1-Host;

[0102] 2-Keyboard assembly; 201-Keyboard body; 2011-Receiving cavity; 2012-Key; 20121-Keycap; 20122-Lifting mechanism; 201221-Second abutting structure; 2012211-Second inclined surface; 2013-Keyboard cover plate; 2014-Hinge connector; 2015-Frame assembly; 20151-First frame; 201511-First inner frame; 201512-First outer frame;

[0103] 20152 - Second border; 201521 - Second inner border; 201522 - Second outer border; 20153 - Horizontal bar;

[0104] 201531 - First abutment structure; 2015311 - First inclined surface; 2016 - First connecting rod assembly; 20161 - First connecting rod;

[0105] 201611 - First end; 201612 - Second end; 20162 - Second connecting rod; 201621 - First end; 201622 - Second end;

[0106] 2017 - Second connecting rod assembly; 2018 - Button slot; 202 - Support part; 2021 - First support plate; 2021a - First side;

[0107] 2021b - Second side; 2022 - Second support plate; 2022a - First side; 2022b - Second side; 2023 - Third support plate;

[0108] 2023a - First side; 2023b - Second side; 20231 - Curved section; 20232 - Straight section;

[0109] 20241-Auxiliary support mechanism; 202411-First support rod; 202412-Second support rod; 20242-Slide rail;

[0110] 20243 - Slide rail; 20244 - First slider; 20245 - Second slider;

[0111] 3-Rotating shaft mechanism; 301-Rotating assembly; 3011-Connecting part; 30111-Main body; 30112-First mounting part;

[0112] 30113 - Second mounting part; 30114 - Third mounting part; 301141 - Connecting arm; 3012 - First fixing member;

[0113] 30121 - First slot; 3013 - Second fastener; 30131 - Second slot; 30132 - Second slide groove; 30133 - Slide rail;

[0114] 301331 - First limiting part; 3014 - Intermediate connecting rod; 3015a - First rotating shaft; 3015b - Second rotating shaft;

[0115] 3015c - Second pivot; 3015d - Fourth pivot; 3016 - First connecting rod; 3017 - Second connecting rod; 30171 - Third slot;

[0116] 30172 - Excavated area; 3018 - Main spindle; 30181 - Stop section; 301811 - Track groove; 3019 - Elastic element;

[0117] 3020 - Limiting element; 3021 - Gasket; 3022 - First extrusion structure; 30221 - First groove; 3023 - Elastic element;

[0118] 3024 - Third link; 30241 - Connecting part; 302411 - Track groove; 3024111 - Recessed part; 30242 - Second limiting part;

[0119] 3025 - Fourth connecting rod; 3026 - Second extrusion structure; 30261 - First protrusion; 3027 - Rotating fixing part; 30271 - Slot;

[0120] 3028 - Sleeve; 3029 - Rocker arm structure; 30291 - Protrusion; 303 - Cam; 3031 - Cam groove;

[0121] 304-Automatic opening and closing device; 3041-Motor; 3042-Protection mechanism; 30421-Fixing frame; 304211-First fixing plate;

[0122] 304212 - Second fixing plate; 30422 - First rotating shaft assembly; 304221 - First shaft; 304222 - First gear component;

[0123] 3042221 - First gear structure; 3042222 - Second gear structure; 3042223 - Guide groove structure;

[0124] 30422231 - Guide groove; 304223 - Power assist mechanism; 30423 - Second rotating shaft assembly; 304231 - Second shaft;

[0125] 304232 - Second gear component; 3042321 - Third gear structure;

[0126] 3042322 - First stop part; 30423221 - Notch; 304233 - Fixing pin; 3042331 - Groove;

[0127] 3042332 - Guide structure; 304234 - Sliding pin; 3042341 - Pin; 3042342 - Second stop part;

[0128] 304235 - Motor connector; 304236 - Gasket; 30424 - Adapter; 304241 - Mounting hole;

[0129] 30425 - Adapter; 304251 - Fourth gear structure; 304252 - Accommodating cavity; 304253 - Elastic element;

[0130] 304254 - Rolling parts; 304255 - Pressure blocks;

[0131] 4-Main unit support components. Detailed Implementation

[0132] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0133] This application provides a keyboard component. To facilitate understanding of the keyboard component provided in this application, its application scenario is first described below. This keyboard component can be applied to electronic devices, such as foldable electronic devices; exemplary, it can be, but is not limited to, a 2-in-1 product. A 2-in-1 product typically includes a host 1 and a keyboard component 2, as can be referred to... Figure 1 , Figure 1This application provides a conventional two-in-one product according to one embodiment. In this embodiment, the host 1 and the keyboard assembly 2 are detachably connected. After being separated from the keyboard assembly 2, the host 1 can still be used as an independent electronic device, such as a tablet computer. The keyboard assembly 2 includes a keyboard body 201 that performs keyboard functions, and a support portion 202 as a support structure to support the host 1, thereby facilitating user operation. For example, the keyboard assembly 2 can be a keyboard accessory used with a tablet computer, supporting the tablet computer and functioning as a keyboard.

[0134] It is understandable that after the main unit 1 is installed on the keyboard assembly 2, the opening and closing of the two-in-one product can be achieved by the relative rotation of the keyboard body 201 and the support part 202 of the keyboard assembly 2. The relative rotation between the keyboard body 201 and the support part 202 can be achieved by the hinge mechanism 3. Figure 1 As can be seen, the keyboard body 201 and the support 202 can be located on both sides of the pivot mechanism 3, and can be rotatably connected to the pivot mechanism 3 respectively.

[0135] Currently, in order to reduce the number of steps users need to take when launching foldable electronic devices such as 2-in-1 products, including unfolding, powering on, and logging in, the concept of automatic opening and closing has been proposed in this field. Since the keyboard body 201 and support 202 of the keyboard assembly 2 can rotate relative to each other via a hinge mechanism 3, an automatic opening and closing device for realizing the automatic opening and closing function can be provided in the hinge mechanism 3. The automatic opening and closing device typically includes a motor, which drives the hinge mechanism 3 to rotate, thereby achieving the relative rotation of the keyboard body 201 and support 202.

[0136] However, to keep pace with the trend of increasingly thinner and lighter electronic devices, the space reserved for the hinge mechanism 3 in the keyboard assembly 2 is becoming increasingly limited. Therefore, if the automatic opening and closing device is placed in the hinge mechanism 3, the size of structures such as the motor in the automatic opening and closing device must be small. If the motor is too small, the torque it provides for the rotation of the hinge mechanism 3 is limited.

[0137] As described above, in the 2-in-1 product, the main unit 4 and the keyboard assembly 2 are detachably connected. However, the main unit 1 is usually heavier than the keyboard assembly 2. Therefore, when the 2-in-1 product is unfolded to a certain angle, the keyboard assembly 2 does not provide sufficient support for the main unit 1, causing wobbling during the movement of the 2-in-1 product and potentially damaging the hinge mechanism 3.

[0138] In addition, since users have personalized requirements for how they use the 2-in-1 product, if the process of opening and closing the 2-in-1 product driven by the motor is manually intervened, the motor may be damaged or other components in the automatic opening and closing device if the torque provided by the motor is insufficient.

[0139] The hinge mechanism provided in this application aims to solve the aforementioned problems. By incorporating a protective mechanism within the automatic opening and closing device of the hinge mechanism, it protects the automatic opening and closing device in situations requiring human intervention, thereby achieving a safe and reliable automatic opening and closing function for the keyboard assembly and extending its service life. Furthermore, by incorporating a rotating component within the hinge mechanism, stepless adjustment of the keyboard assembly's opening and closing angles and arbitrary angle hovering are achieved. To facilitate understanding of the hinge mechanism provided in this application, as well as the keyboard assembly and electronic device utilizing this hinge mechanism, a detailed description will follow with specific embodiments.

[0140] It should be understood that the terminology used in the following embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used in the specification and appended claims of this application, the singular expressions “a,” “an,” “the,” “the,” “the,” and “this” are intended to also include expressions such as “one or more,” unless the context clearly indicates otherwise.

[0141] References to "one embodiment" or "some embodiments" as used in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0142] Reference Figure 2 , Figure 2 This is a schematic diagram illustrating an application scenario of the rotating shaft mechanism provided in one embodiment of this application. Figure 2The application demonstrates a foldable electronic device comprising a host unit 1 and a keyboard assembly 2. The host unit 1 and keyboard assembly 2 are detachably connected. In this application, the host unit 1 is a product with a complete structure and function, capable of being used as an independent electronic device even after being detached from the keyboard assembly 2. The host unit 1 may include, but is not limited to, a display screen, a battery module, and a computing storage module. Additionally, the host unit 1 may be equipped with contacts or connector interfaces for mates with external devices, such as pogo pins, USB, Type-A, or Type-C interfaces, to achieve wired connections between the host unit 1 and external devices. Alternatively, the host unit 1 may have Bluetooth and Wi-Fi modules to achieve wireless connections with external devices. This application does not specifically limit the type of the host unit 1; it may be, but is not limited to, a tablet computer or a personal digital assistant (PDA).

[0143] Reference Figure 3a , Figure 3a This is a schematic diagram of the structure of a keyboard assembly 2 according to an embodiment of this application. In this embodiment, the keyboard assembly 2 is in an unfolded state (i.e., the support 202 is away from the keyboard body 201, and the keyboard body 201 is exposed to the user). The keyboard assembly 2 includes a keyboard body 201 and a support 202. The keyboard body 201 provides keyboard input functionality for the host 1. Additionally, a control circuit, a battery, or sensors (such as infrared sensors, ultrasonic sensors, or fingerprint sensors) may be disposed within the keyboard body 201. The control circuit provides circuit control functionality for the keyboard body 201, and the sensors provide signal triggering functionality. Furthermore, the battery in the keyboard body 201 can maintain the normal operating state of the keyboard body 201 when there is no external power supply.

[0144] As can be seen from the foregoing embodiments, the relative rotation of the keyboard body 201 and the support 202 can be achieved by the pivot mechanism 3. Further reference can be made to... Figure 3a In this embodiment, the keyboard assembly 2 further includes a hinge mechanism 3, and the keyboard body 201 can be connected to the hinge mechanism 3.

[0145] In this application, the support portion 202 of the keyboard assembly 2 includes a first support plate 2021, a second support plate 2022, and a third support plate 2023, which are arranged around the pivot mechanism 3. The first support plate 2021 can serve to support the pivot mechanism 3. Figure 2The host 1 shown serves as a support. To secure the host 1, which is mounted on the keyboard assembly 2, to the first support plate 2021, in one possible embodiment of this application, a first magnetic element can be provided in the first support plate 2021. Figure 3a (Not shown in the image), and a second magnetic element is provided at a corresponding position on the host 1. The first magnetic element and the second magnetic element can be attracted to each other. In this application, the first magnetic element can be a magnetic element or a non-magnetic element that can be attracted to a magnetic element. Similarly, the second magnetic element can be a magnetic element or a non-magnetic element that can be attracted to a magnetic element. The key is that the first and second magnetic elements can be attracted and fixed together.

[0146] Continue to refer to Figure 3a The first support plate 2021 has a first side 2021a and a second side 2021b arranged opposite to each other. The first side 2021a of the first support plate 2021 faces the rotating shaft mechanism. This first side 2021a can be fixedly connected to a main support member 4. The first support plate 2021 can rotate around the rotating shaft mechanism. (See also...) Figure 2 and Figure 3a The host support component 4 serves to support the host 1. Additionally, the host support component 4 may have an arc surface. After the host 1 is installed on the host support component 4, the frame of the host 1 can engage with this arc surface, achieving a close fit and fixation between the host support component 4 and the frame of the host 1. This facilitates the fixation between the host 1 and the first support plate 2021, thereby reducing the risk of the host 1 detaching from the first support plate 2021. It is understood that in this application, the host support component 4 may also be provided with connector interfaces or contacts, and these connector interfaces or contacts can be led to the control circuit within the keyboard body 201 via leads. Thus, when the host 1 is installed on the keyboard assembly 2, the contacts or connector interfaces of the host 1 can be connected to the corresponding contacts or connector interfaces on the host support component 4, thereby achieving an electrical connection between the host 1 and the keyboard assembly 2. The host 1 can then be operated and controlled via the keyboard body 201. It is worth mentioning that, in this application, the lead wires of the control circuit used to connect the host support 4 and the keyboard body 201 can be hidden in the hinge mechanism 3 to protect the lead wires.

[0147] Reference Figure 3b , Figure 3bThis is a cross-sectional view of a keyboard assembly provided in one embodiment of this application. In this application, a second support plate is located between a first support plate 2021 and a third support plate 2023. The second support plate 2022 may include a first side 2022a and a second side 2022b disposed opposite to each other. The first side 2022a of the second support plate 2022 is hinged to the surface of the first support plate 2021 that is opposite to the keyboard body 201, so the second support plate 2022 and the first support plate 2021 can rotate relative to each other. In addition, the third support plate 2023 includes a first side 2023a and a second side 2023b disposed opposite to each other. The second side 2022b of the second support plate 2022 is hinged to the first side 2023a of the third support plate 2023.

[0148] You can continue to refer to Figure 3b ,exist Figure 3b In the illustrated embodiment, the keyboard assembly 2 is in an unfolded state, and the portions of the first support plate 2021, the second support plate 2022, and the third support plate 2023 surrounding the pivot mechanism 3 form a triangular support structure. Thus, during the unfolding and closing of the keyboard assembly 2 (i.e., the support portion 202 approaches the keyboard body 201, and the keyboard body 201 is partially covered by the support portion 202), this triangular support structure can provide support for the keyboard assembly 2. Figure 2 The host 1 shown provides stable support, and also makes the relative rotation process between the support part 202 and the keyboard body 201 of the keyboard assembly 3 smoother, thereby making the structure of the keyboard assembly 2 more reliable.

[0149] Reference Figure 4a , Figure 4a For this application Figure 2 A schematic diagram of the provided electronic device in its closed state. Figure 4a As can be seen, when the electronic device is in a closed state, the host 1 is in contact with the keyboard body 201, and at least a portion of the second support plate 2022 and the first support plate 2021 cover the host 1 to protect it. Furthermore, in this application, the third support plate 2023 includes an arc-shaped segment 20231 and a straight segment 20232. The curvature of the arc-shaped segment 20231 can be designed according to the outline of the hinge mechanism 3 so that when the electronic device is in a closed state, the arc-shaped segment 20231 can cover the hinge mechanism 3 to protect it and improve the aesthetic appearance of the keyboard assembly 2.

[0150] Using the electronic device provided in this application, when it needs to be unfolded from a closed state, a force F can be applied to the host 1 and the first support plate 2021, moving away from the keyboard body 201. (See also...) Figures 4b to 4e , Figures 4b to 4e This is a schematic diagram showing the structure of an electronic device when it is unfolded to different angles. Figures 4b to 4eAs can be seen, during the unfolding of the electronic device, the first support plate 2021 can drive the second support plate 2022 to rotate in a direction away from the keyboard body 201. While the second support plate 2022 is rotating, it can drive the third support plate 2023 to move in a direction away from the keyboard body 201, so that the third support plate 2023 is separated from the pivot mechanism 3.

[0151] Additionally, you can continue to refer to Figures 4a to 4e During the unfolding process of the electronic device, the first support plate 2021, the second support plate 2022, and the third support plate 2023 form a triangular support structure around the pivot mechanism 3, which effectively increases the stability of the electronic device's movement. It is understood that during the process of the electronic device moving from the unfolded state to the closed state, the first support plate 2021, the second support plate 2022, and the third support plate 2023 all move towards the keyboard body 201. During this process, the triangular support structure also provides stable support for the movement of the electronic device.

[0152] Reference Figure 5 , Figure 5 This is a cross-sectional structural diagram of the keyboard assembly provided in this application when it is in the closed state. As can be seen from the above description of the embodiments, during the process of the keyboard assembly moving from the unfolded state to the closed state, the third support plate 2023 moves in the direction toward the keyboard body 201. In this application, the keyboard body 201 may be provided with a receiving cavity 2011, the opening of which faces the third support plate 2023. Thus, the keyboard assembly 2 can be in the closed state... Figure 5 In the closed state shown, at least a portion of the straight section 20232 of the third support plate 2023 can be accommodated within the receiving cavity 2011 to improve the overall integration of the keyboard assembly 2. Additionally, in some embodiments of this application, the third support plate 2023 can also be positioned such that... Figure 3b The second side 2023b shown is always located within the receiving cavity 2011, and the third support plate 2023 can slide within the receiving cavity 2011, thereby allowing the receiving cavity 2011 to provide guidance for the sliding of the third support plate 2023. To improve the stability of the movement of the third support plate 2023, in some embodiments of this application, a slide rail can be provided on the side wall of the receiving cavity 2011. Figure 5 (not shown in the image), and a slider structure is provided on the third support plate 2023. Figure 5 (not shown in the image), and enables the slider structure to move along the slide rail to reduce the swaying of the third support plate 2023 during movement, thereby improving the movement stability of the entire keyboard assembly 2.

[0153] As can be seen from the above embodiments, the hinge mechanism 3 plays a crucial role in the movement of the keyboard assembly 2 from the unfolded state to the closed state, and from the closed state to the unfolded state. To facilitate understanding of the implementation of the movement of the keyboard assembly 2 provided in this application, the specific configuration of the hinge mechanism 3 will be described in detail below with reference to the accompanying drawings.

[0154] It is understandable that, in order to allow the keyboard body 201 and support 202 of the keyboard assembly 2 to be held at any folding angle to meet the user's personalized usage requirements, a rotating component is usually provided in the hinge mechanism 3. This rotating component provides reliable damping force to the entire keyboard assembly 2 during the folding mode switching process, thereby achieving stable support for the host 1. In this application, the folding angle between the keyboard body 201 and the support 202 refers to the angle between the surface of the keyboard body 201 facing the support 202 and the surface of the support 202 facing the keyboard body 201 during the process of the keyboard assembly 2 moving from an unfolded state to a closed state, and from a closed state to an unfolded state.

[0155] Reference Figure 6a , Figure 6a This is a schematic diagram of the structure of a rotating assembly provided in one embodiment of this application. Figure 6a The diagram shows a schematic of the rotating component 301 when the keyboard component 2 is in the closed state. Additionally, refer to... Figure 6b , Figure 6b A schematic diagram of the rotating component 301 is shown when the keyboard component 2 is in the unfolded state.

[0156] Can be referred to together Figure 6a and Figure 6b In this embodiment, the rotating assembly 301 may include a connector 3011, a first fixing member 3012, and a second fixing member 3013. The first fixing member 3012 and the second fixing member 3013 may be connected to the aforementioned components as described above. Figure 5 The keyboard body 201 shown is fixedly connected, and the connection method can be, but is not limited to, fastening with screws or other fasteners. Additionally, the first fixing member 3012 and the second fixing member 3013 can serve as support members for the entire rotating assembly 301. The first fixing member 3012 and the second fixing member 3013 are spaced apart, and other structures of the rotating assembly 301 can be connected to the first fixing member 3012 and the second fixing member 3013 directly or indirectly.

[0157] To facilitate understanding of the connection relationships between the various structures of the rotating assembly 301, please refer to... Figure 7 , Figure 7 for Figure 6a and Figure 6bAn exploded view of the rotating assembly 301 shown. In this embodiment, the connector 3011 includes a body portion 30111 arranged in an elongated structure, which can be connected to the aforementioned... Figure 3b The main unit support 4 shown is fixedly connected, and the connection method can be, but is not limited to, a locking connection using screws or other fasteners. (Continue referring to...) Figure 7 The main body 30111 has a first side, wherein a first mounting portion 30112 and a second mounting portion 30113 are provided on the first side, and the first mounting portion 30112 and the second mounting portion 30113 are spaced apart. Additionally, the main body 30111 has a first surface and a second surface facing away from each other, and the first surface can be used for fixed connection with the main unit support 4. Since the first side of the first support plate 2021 is fixedly connected to the main unit support 4, the first support plate 2021 can be fixedly connected to the first surface of the main body 30111 through the main unit support 4. The first mounting portion 30112 and the second mounting portion 30113 can extend in a direction away from the second surface; the first mounting portion 30112 may have a first mounting groove, and the second mounting portion 30113 may have a second mounting groove. (Continue referring to...) Figure 7 A third mounting portion 30114 may also be provided on the first side of the main body portion 30111, and the third mounting portion 30114 is located on the main body portion 30111. The main body portion 30111 also has a second side, and the first side and the second side are disposed opposite to each other. The third mounting portion 30114 may include two oppositely disposed connecting arms 301141, and the two connecting arms 301141 extend from the first side of the main body portion 30111 towards the second side.

[0158] Can be referred to together Figure 6a , Figure 6b and Figure 7In this application, the first fixing member 3012 and the second fixing member 3013 are located on the same side of the connecting member 3011. The rotating assembly 3 may also include a linkage assembly, which includes two intermediate linkages 3014. The surface of the first fixing member 3012 facing the connecting member 3011 has a first slot 30121, and the surface of the second fixing member 3013 facing the connecting member 3011 has a second slot 30131. The intermediate linkage 3014 includes a first end and a second end that are arranged opposite to each other. The first end of one intermediate linkage 3014 is installed in the first mounting groove of the first mounting portion 30112, and the second end of the intermediate linkage 3014 is installed in the first slot 30121 of the first fixing member 3012. Furthermore, the first end of the intermediate connecting rod 3014 is rotatably connected to the wall of the first mounting groove via a first rotating shaft 3015a, and the second end of the intermediate connecting rod 3014 is rotatably connected to the first slot 30121 of the first fixing member 3012 via a second rotating shaft 3015b. To achieve the rotatable connection between the first end of the intermediate connecting rod 3014 and the wall of the first mounting groove, the first rotating shaft 3015a can be fixedly connected to the first end of the first connecting rod, and the first rotating shaft 3015a can be rotatably connected to the wall of the first mounting groove. This rotatable connection can be achieved by creating mounting holes on two opposite walls of the first mounting groove, and inserting the two ends of the intermediate connecting rod 3014 into one mounting hole respectively. In other embodiments of this application, the first rotating shaft 3015a can also be fixedly connected to the wall of the first mounting groove, and the first end of the intermediate connecting rod 3014 can rotate around the first rotating shaft 3015a. In addition, in this embodiment, the second end of the intermediate connecting rod 3014 and the groove wall of the first slot 30121 of the first fixing member 3012 can be rotatably connected by a second rotating shaft 3015b, which can be, but is not limited to, a pin. It is worth mentioning that in this application, the rotational connection method between the two structural components can be set in the manner described above, where the first end of the intermediate connecting rod 3014 and the groove wall of the first mounting slot are rotatably connected by a first rotating shaft 3015a. This will not be repeated in the following embodiments.

[0159] Similarly, the first end of another intermediate connecting rod 3014 can be installed in the second mounting groove of the second mounting portion 30113 of the connector 3011, and is rotatably connected to the groove wall of the second mounting groove via a first rotating shaft 3015a. The second end of the intermediate connecting rod 3014 can be installed in the second slot 30131 of the second fixing member 3013, and is rotatably connected to the groove wall of the second slot 30131 via a second rotating shaft 3015b. Furthermore, in this embodiment, the second end of the intermediate connecting rod 3014 and the groove wall of the second slot 30131 of the second fixing member 3013 can be rotatably connected via a second rotating shaft 3015b, which can be, but is not limited to, a pin.

[0160] You can continue to refer to Figure 6a , Figure 6b and Figure 7 In this application, the linkage assembly may further include a first linkage 3016 and a second linkage 3017. The first linkage 3016 includes a first end and a second end disposed opposite to each other. The first end of the first linkage 3016 can be mounted on the third mounting portion 30114 of the connector 3011, and the first end of the first linkage 3016 is located between two connecting arms 301141. The first end of the first linkage 3016 is rotatably connected to the two connecting arms 301141 via a third rotating shaft 3015c. In addition, the second end of the first linkage 3016 is rotatably connected to the second linkage 3017 via a fourth rotating shaft 3015d. The second connecting rod 3017 may have a third slot 30171 at one end for connecting with the first connecting rod 3016. The second end of the first connecting rod 3016 may be installed in the third slot 30171, and the second end of the first connecting rod 3016 is rotatably connected to the groove wall of the third slot 30171 through a fourth rotating shaft 3015d, so that the connection structure formed by the first connecting rod 3016 and the second connecting rod 3017 is more compact.

[0161] Additionally, a first groove is provided on the end face of the first fixing member 3012 facing the second fixing member 3013. Figure 7 (Not shown in the image), a second sliding groove 30132 is provided on the end face of the second fixing member 3013 facing the first fixing member 3012. One end of the third rotating shaft 3015c is inserted into the first sliding groove and can slide along the first sliding groove, while the other end of the third rotating shaft 3015c can be inserted into the second sliding groove 30132 and can slide along the second sliding groove 30132. This can be understood as the connecting rod assembly being able to slide along the first sliding groove and the second sliding groove 30132.

[0162] In this application, by designing the specific shapes of the first and second slides 30132, the motion trajectory of the third rotating shaft 3015c can be set. Furthermore, since the first end of the first connecting rod 3016 is rotatably connected to the connecting member 3011 via the third rotating shaft 3015c, during the movement of the third rotating shaft 3015c along the set motion trajectory, the connection between the second end of the first connecting rod 3016 and the connecting member 3011 can move according to the set motion trajectory.

[0163] For example, refer to Figure 8a , Figure 8a for Figure 6a A cross-sectional view of the rotating assembly 301 at point AA shown. Figure 8aThe image shows the position of the third pivot 3015c in the second slide groove 30132 when the keyboard assembly 2 is in the closed state, i.e., when the angle between the surface of the keyboard body 201 facing the support 202 and the surface of the support 202 facing the keyboard body 201 is approximately 0°. Figure 8a In the shown state, the third pivot 3015c is located at the highest point of the second slide rail 30132. Furthermore, when this rotating assembly 301 is used in the keyboard assembly 2, in... Figure 8a In the state shown, the third pivot 3015c is located at one end of the second slide 30132, away from the keyboard body 201.

[0164] During the movement of keyboard assembly 2 from the closed state to the unfolded state, the third pivot 3015c can slide along the second slide groove 30132. (See reference...) Figure 8b , Figure 8b The image shows the position of the third hinge 3015c within the second slide rail 30132 when the keyboard assembly 2 is in a state between its closed and unfolded positions. Figure 8b In the shown state, the angle between the surface of the keyboard body 201 facing the support 202 and the surface of the support 202 facing the keyboard body 201 is approximately 45°. (This can be compared to...) Figure 8a and Figure 8b As can be seen, during the unfolding process of the keyboard assembly 2, the third pivot 3015c slides along the second slide groove 30132 toward the keyboard body.

[0165] Keyboard components in Figure 8b When continuing to expand in the state shown, please refer to... Figure 8c , Figure 8c This demonstrates the position of the third pivot 3015c within the second slide groove 30132 when the included angle between the surface of the keyboard body 201 facing the support 202 and the surface of the support 202 facing the keyboard body 201 is approximately 110°. See also... Figure 8d , Figure 8d The diagram illustrates the position of the third pivot 3015c within the second slide groove 30132 when the angle between the surface of the keyboard body 201 facing the support 202 and the surface of the support 202 facing the keyboard body 201 is at its maximum (e.g., approximately 130°). At this point, the third pivot 3015c is located at the end of the second slide groove 30132 closest to the keyboard body 201. Figures 8a to 8d It can be seen that in this application, the movement trajectory of the connecting member 3011 can be set by designing the specific form of the second slide 30132.

[0166] You can continue to refer to Figure 6a , Figure 6b and Figure 7In this application, the rotating assembly 301 may further include a main shaft 3018, which is sequentially disposed through a first fixing member 3012, a second connecting rod 3017, and a second fixing member 3013. The main shaft 3018 is rotatably connected to the first fixing member 3012 and the second fixing member 3013, allowing the main shaft 3018 to rotate relative to them. Furthermore, in the radial direction of the main shaft 3018, the second connecting rod 3017 is relatively fixed to the main shaft 3018, allowing the second connecting rod 3017 to rotate synchronously with the main shaft 3018 around its axis. In one possible embodiment of this application, to fix the second connecting rod 3017 to the main shaft 3018 in the radial direction, a shaped hole may be provided on the second connecting rod 3017, such as, but not limited to, a D-shaped hole. At the same time, the cross section of the part of the main shaft 3018 that passes through the second connecting rod 3017 is also set to a non-circular cross section that can match the non-circular hole, so as to achieve the radial limitation of the second connecting rod 3017 and the main shaft 3018.

[0167] In addition, a stop 30181 can be provided at the end of the main shaft 3018 located on the second fixing member 3013 away from the first fixing member 3012, so as to limit the main shaft 3018 in the axial direction, reduce the axial movement of the main shaft 3018, and thus improve the motion stability of the entire rotating assembly 301.

[0168] In this application, in order for the rotating component 301 to provide damping force at the corresponding rotation position during the entire movement of the rotating shaft mechanism, so that the rotating shaft mechanism can be maintained at the corresponding rotation position, please refer to... Figure 7 In one possible embodiment of this application, the rotating assembly 301 may also be provided with an elastic element 3019, which can accumulate elastic force when compressed. Figure 7 As shown, the elastic element 3019 can be disposed on the side of the first fixing member 3012 opposite to the second fixing member 3013. This application does not limit the specific arrangement of the elastic element 3019; it can, for example, include elastic discs, which can be one or more. When the elastic element 3019 includes multiple elastic discs, the multiple elastic discs can be stacked. Additionally, see [reference needed]. Figure 7 The elastic element 3019 can be sleeved on the main shaft 3018. In this embodiment, when the elastic element 3019 is compressed, it will generate an elastic force along the axial direction of the main shaft 3018.

[0169] In addition, to prevent the elastic element 3019 from falling off the main shaft 3018, a limiting member 3020 can be provided on the side of the elastic element 3019 facing away from the first fixing member 3012. This limiting member 3020 can be exemplarily a nut, which is sleeved on the main shaft 3018 and limits the elastic element 3019 along the axial direction of the main shaft 3018. Furthermore, in this application, to apply an effective force to the elastic element 3019, a set of washers 3021 can be provided. This set of washers 3021 is sleeved on the main shaft 3018, and the elastic element 3019 is disposed between these washers 3021. Additionally, the outer diameter of the washers 3021 can be greater than or equal to the outer diameter of the elastic element 3019. The limiting member 3020 can abut against the washers 3021 located on the side of the elastic element 3019 facing away from the first fixing member 3012.

[0170] It is worth mentioning that in this application, the elastic element 3019 can deform along the axial direction of the main shaft 3018, and the elastic force generated by the deformation of the elastic element 3019 can act on the first fixing member 3012 to generate friction between the first fixing member 3012 and the elastic element 3019. This friction can hinder the rotation of the main shaft 3018. Furthermore, since the second connecting rod 3017 can rotate synchronously with the main shaft 3018, and the second connecting rod 3017 can drive the connecting member 3011 to rotate, the connecting member 3011 is also fixed to the main shaft 3018. Figure 3b The main support member 4 of the first support plate 2021 shown is fixedly connected. Therefore, when the rotation of the second link 3017 with the main shaft 3018 is hindered, the movement of the first support plate 2021 will be hindered, thus converting the elastic force generated by the elastic member 3019 into a damping force that hinders the rotation of the shaft mechanism.

[0171] It is understandable that the host 1 can be fixed to the first support plate 2021. When the host 1 reaches a certain rotation position as it rotates with the first support plate 2021, if the torque generated by the gravity of the host 1 is equal to the torque generated by the damping force of the aforementioned rotating shaft mechanism, then the first support plate 2021 can be suspended at the corresponding rotation position without the action of external force.

[0172] Since the damping force required by the rotating shaft mechanism varies at any rotational position, and this change in damping force can be achieved by changing the elastic force generated by the elastic element 3019, the change in the elastic force of the elastic element 3019 can be achieved by changing its deformation. In one possible embodiment of this application, in order to enable the elastic element 3019 to have corresponding deformations at different rotational positions, a cam contact surface can be provided between the first fixing member 3012 and the elastic element 3019. For specific implementation, please refer to... Figure 7A first pressing structure 3021 is provided between the elastic member 3019 and the first fixing member 3012. This first pressing structure 3021 is sleeved on the main shaft 3018, and the elastic member 3019 can press the first pressing structure 3022 against the first fixing member 3012, so that the first pressing structure 3022 abuts against the first fixing member 3012 under the elastic force of the elastic member 3019. Furthermore, in the radial direction along the main shaft 3018, the first pressing structure 3022 is relatively fixed to the main shaft 3018, and can rotate synchronously with the main shaft 3018. A shaped hole can be provided on the first pressing structure 3022, for example, but not limited to, a D-shaped hole. Simultaneously, the cross-section of the portion of the main shaft 3018 that passes through the first cam mechanism 3022 is also set to a shaped cross-section that matches the shaped hole, thereby achieving radial positioning of the first pressing structure 3022 and the main shaft 3018.

[0173] Reference Figure 9 , Figure 9 A schematic diagram of a first extrusion structure according to an embodiment of this application is shown. A first groove 30221 is provided on the end face of the first extrusion structure 3022 facing the first fixing member 3012. This first groove 30221 is multi-segmented, for example… Figure 9 The figure shows four segments. Additionally, the first groove 30221 can be arc-shaped, and the radii of the circles containing the multiple segments of the first groove 30221 can be different. To enable the first extrusion structure 3022 to mate with the end face of the first fixing member 3012, in this application, the end face of the first fixing member 3012 facing the first extrusion structure 3022 can be provided with a first protrusion (not shown in the figure). This first protrusion is also multi-segmented, and each of the multi-segmented first protrusion corresponds one-to-one with the aforementioned multi-segmented first groove 30221. It is understood that in other embodiments of this application, the first groove 30221 can also be provided on the end face of the first fixing member 3012 facing the first extrusion structure 3022, while the first protrusion can be provided on the end face of the first extrusion structure 3022 facing the second fixing member.

[0174] When the corresponding first protrusion falls into the first groove 30221, so that the first groove 30221 and the first protrusion engage, the total length of the first pressing structure 3022 and the first fixing member 3012 in the axial direction along the main shaft 3018 is minimized. At this time, the pressing force on the elastic member 3019 is minimized, and the deformation of the elastic member 3019 is minimized, thus minimizing the elastic force it generates. Consequently, the friction between the first pressing structure 3022 and the first fixing member 3012 is minimized. When the first pressing structure 3022 and the first fixing member 3012 rotate relative to each other, and the first groove 30221 and the first protrusion are misaligned, the total length of the first pressing structure 3022 and the first fixing member 3012 in the axial direction along the main shaft 3018 increases, thereby increasing the deformation of the elastic member 3019 to accumulate elastic force. Under this elastic force, the friction between the first pressing structure 3022 and the first fixing member 3012 increases, thereby increasing the damping force of the rotating shaft mechanism.

[0175] It is worth mentioning that, in this application, the first groove 30221 and the first protrusion can be reasonably designed so that the damping force of the pivot mechanism 3 is maximized when the corresponding keyboard assembly 2 is in the closed state, so that the keyboard assembly 2 can be stably maintained in the closed state.

[0176] You can continue to refer to Figure 7 In this application, the rotating assembly 301 may also include an elastic element 3023, which may be exemplarily a torsion spring. Additionally, refer to... Figure 10 , Figure 10 To and Figure 6b A structural schematic diagram of the corresponding rotating component 301 at another angle. (From...) Figure 10 It can be seen that the second connecting rod 3017 may be provided with a hollowed-out area 30172, and the elastic element 3023 may be hidden in the hollowed-out area 30172. In this embodiment, the elastic element 3023 may be sleeved on the main shaft 3018. Since the main shaft 3018 can rotate relative to the first fixing member 3012 and the second fixing member 3013, and the second connecting rod 3017 can rotate synchronously with the main shaft 3018, in this application, one end of the elastic element 3023 can be fixed to the first fixing member 3012 or the second fixing member 3013, and the other end can be fixed to the second connecting rod 3017 or the main shaft 3018. In this way, during the rotation of the second connecting rod 3017 with the main shaft 3018, the elastic element 3023 can undergo elastic deformation, thereby generating an elastic force around the main shaft. Based on this, through proper design, the elastic force generated by the elastic element 3023 can provide auxiliary force for the rotation of the second connecting rod 3017 and the main shaft 3018, thereby enabling the rotation of components such as... Figure 7When a small force is applied to the connector 3011 shown, it can drive the second link 3017 and the spindle 3018 to rotate, which can improve the user's comfort when opening and closing the keyboard assembly 2 with the rotating component 301.

[0177] You can continue to refer to Figure 7 The rotating assembly 301 may also include a third link 3024, which is slidable along the second fixing member 3013. Additionally, see [reference needed]. Figure 10 The deviation of the second fastener 3013 is as follows Figure 7 A slide rail 30133 is provided on one side of the second slot 30131 shown in the figure. The third connecting rod 3024 can be accommodated in the slide rail 30133 and can slide along the slide rail 30133.

[0178] In some embodiments of this application, to prevent the third link 3024 from detaching from the slide rail 30133, reference can be continued. Figure 7 and Figure 10 The rotating assembly 301 may further include a fourth link 3025, at least a portion of which is located on the side of the third link 3024 opposite to the second slot 30131, and the fourth link 3025 is fixedly connected to the second fixing member 3013. Thus, the third link 3024 is confined within the slide rail 30133 by the fourth link 3025, thereby improving the reliability of the movement of the third link 3024.

[0179] In addition, during the rotation of the rotating assembly 301, in order to achieve the sliding of the third link 3024 within the slide rail 30133, by Figure 7 It can be seen that the third link 3024 has a connecting portion 30241 on the side facing the second fixing member 3013. Since the other structures of the rotating assembly 301 can rotate with the main shaft 3018, in this application, the third link 3024 can be connected to the main shaft 3018 via the connecting portion 30241. For specific implementation, please refer to... Figure 11a , Figure 11a for Figure 10 The cross-sectional view at point BB in the figure. As can be seen from the description of the foregoing embodiments, a stop portion 30181 is provided on the side of the spindle 3018 opposite to the first fixing member 3012, located on the second fixing member 3013. See also... Figure 7 and Figure 11a A track groove 301811 may be provided on the end face of the stop portion 30181 facing the third link 3024, and the connecting portion 30241 of the third link 3024 may be inserted into the track groove 301811. In this way, during the rotation of the main shaft 3018, the connecting portion 30241 of the third link 3024 may slide along the track groove 301811.

[0180] It is understandable that by properly designing the trajectory groove 301811, the motion trajectory of the third link 3024 can be designed. For example, the rotation assembly 301 can be positioned... Figure 11a In the deployed state shown, the third link 3024 can be concealed within the second fixing member 3013. Additionally, see reference... Figure 11b , Figure 11b This refers to the relative positional relationship between the third link 3024 and the stop portion 30181 when the rotating assembly 301 is in the closed state. Figure 11b In the closed state shown, the third link 3024 can extend from the second fixing member 3013. For example, when this rotating assembly 301 is used as... Figure 3a When the keyboard assembly 2 is shown, during the process of the keyboard assembly 2 changing from an unfolded state to a closed state, the third link 3024 can slide in the direction toward the keyboard body 201. Conversely, during the process of the keyboard assembly 2 changing from a closed state to an unfolded state, the third link 3024 can slide in the direction away from the keyboard body 201. In some other embodiments of this application, when the rotating component 301 is used for the keyboard assembly 2, during the process of the keyboard assembly 2 changing from an unfolded state to a closed state, the third link 3024 can slide in the direction away from the keyboard body 201. Conversely, during the process of the keyboard assembly 2 changing from a closed state to an unfolded state, the third link 3024 can slide in the direction toward the keyboard body 201.

[0181] As described in the foregoing embodiments, the keyboard body 201 of the keyboard assembly 2 can be used to implement keyboard input functions. Therefore, the keyboard body 201 may be provided with keys 2012. (Refer to...) Figure 12 , Figure 12This is a partial structural diagram of a keyboard body 201 provided in a possible embodiment of this application. The keyboard body 201 may also include a keyboard cover 2013, which protects the internal structure of the keyboard body 201, and the keys 2012 are exposed through the keyboard cover 2013. Normally, the keys 2012 protrude from the surface of the keyboard cover 2013 to facilitate their function by pressing the keys 2012. However, when the keyboard assembly 2 is in the closed state, the keys 2012 are in an unused state, and it is not necessary for the keys 2012 to protrude from the surface of the keyboard cover 2013. Therefore, this application provides a scheme that allows the keys 2012 on the keyboard body 201 to rise and fall with the rotation of the pivot mechanism, so that when the keyboard assembly 2 is in the unfolded state, the keys 2012 rise to the surface of the keyboard cover 2013 protruding from the keyboard body 201. When the keyboard assembly 2 is in the closed state, the key 2012 falls down and is hidden in the keyboard body 201, thereby reducing the thickness of the keyboard assembly 2 in the closed state to meet the requirements of the thin design of electronic devices. It also avoids screen marks caused by the keyboard body 201 and the display screen of the electronic device being attached in the closed state, thus improving the user experience.

[0182] In specific implementation, refer to Figure 13a , Figure 13a A schematic diagram of the overall structure of the keyboard body 201 provided in this application is shown. Figure 13a The middle part is omitted Figure 12 The key 2012 and key cover 2013 shown are examples of structures used to demonstrate the connection between the hinge mechanism 3 and the keyboard body 201. Figure 13a It can be seen that a hinge connector 2014 may be provided at the end of the keyboard body 201 near the hinge mechanism 3. The hinge connector 2014 may be provided in the form of a long strip structure, but is not limited to this, and the length direction of the hinge connector 2014 may be the same as the axial direction of the main shaft 3018 of the rotating assembly 301.

[0183] As described in the foregoing embodiments regarding the rotating component 301 of the pivot mechanism 3, the rotating component 301 includes a third link 3024 that can slide in a direction toward or away from the keyboard body 201. Therefore, in this application, the pivot connector 2014 can be fixedly connected to the third link 3024, thereby causing the pivot connector 2014 to move in a direction toward or away from the pivot mechanism 3 during the sliding of the third link 3024. It is understood that in this application, when the third link 3024 slides in a direction toward the keyboard body 201, the pivot connector 2014 can move in a direction away from the pivot mechanism 3, and when the third link 3024 slides in a direction away from the keyboard body 201, the pivot connector 2014 can move in a direction toward the pivot mechanism 3.

[0184] It is worth mentioning that, in this application, in order to improve the stability of the movement of the rotating shaft connector 2014, multiple rotating components 301 can be provided in the rotating shaft mechanism 3. For example, in Figure 13a In the illustrated embodiment, the pivot mechanism 3 may be provided with two rotating components 301, which may be located at two ends along the length of the pivot mechanism 3. Thus, the third connecting rods 3024 of both rotating components 301 can be fixedly connected to the pivot connector 2014. Through proper arrangement, the two third connecting rods 3024 can move synchronously and in the same direction to drive the pivot connector 2014, thereby improving the reliability of the pivot connector 2014's movement and thus enhancing the overall stability of the keyboard assembly 2.

[0185] Additionally, you can refer to Figure 13b , Figure 13b for Figure 13a The diagram shows a structural schematic of the keyboard body from another angle. The keyboard body 201 may further include a frame assembly 2015, which includes a first frame 20151, a second frame 20152, and a crossbar 20153. The first frame 20151 and the second frame 20151 are arranged opposite each other along the axial direction of the main shaft 3018 of the rotating assembly 301 of the pivot mechanism 3, and both the first frame 20151 and the second frame 20152 are fixedly connected to the pivot connector 2014. The connection method can be, but is not limited to, fastening with screws or other fasteners. Thus, as the pivot connector 2014 moves with the third link 3024, the first frame 20151 and the second frame 20152 can move synchronously with the pivot connector 2014.

[0186] Reference Figure 14 , Figure 14 To be Figure 12 A partial structural diagram of the keyboard body 201 after the keyboard cover 2013 has been removed. Figure 14 As can be seen, the button 2012 is located between the first border 20151 and the second border 20152. In addition, in this application, the button 2012 can be arranged in multiple rows side by side, with each row of buttons 2012 including multiple buttons 2012, and each row of buttons 2012 is arranged along the direction from the first border 20151 to the second border 20152.

[0187] Reference Figure 15 , Figure 15 for Figure 14The diagram shows the structure of the keyboard body 201 from another angle. In this embodiment, there are multiple crossbars 20153, with one crossbar 20153 corresponding to each row of keys 2012, and the length direction of the crossbar 20153 is the same as the arrangement direction of each row of keys 2012. Furthermore, the crossbar 20153 can be positioned such that the orientation of the corresponding key 2012 is as follows: Figure 13a The rotating shaft mechanism 3 shown can also be located on the side of the corresponding button 2012 opposite to the rotating shaft mechanism 3, which is not specifically limited in this application.

[0188] In this application, the first frame 20151 and the second frame 20152 can drive the crossbar 20153 to move along its length. For specific implementation, please refer to... Figure 16 , Figure 16 for Figure 15 The image shows a partial enlarged view of the keyboard body 201. In this application, the first frame 20151 includes a first inner frame 201511 and a first outer frame 201512. The first inner frame 201511 and the first outer frame 201512 are arranged side by side, and the first inner frame 201511 is located on the side of the first outer frame 201512 facing the keys 2012. Additionally, the first outer frame 201512 is used to... Figure 13a The pivot connecting rod 2014 shown is fixedly connected, and the first inner frame 201511 is fixedly connected to multiple crossbars 20153. The connection method can be, but is not limited to, fastening with screws or other fasteners. The first outer frame 201512 and the first inner frame 201511 can be connected by the first connecting rod assembly 2016.

[0189] Reference Figure 17 , Figure 17 for Figure 16Enlarged view of the partial structure at point C. In this application, the first connecting rod assembly 2016 includes a first connecting rod 20161 and a second connecting rod 20162. The first end 201611 of the first connecting rod 20161 is hinged to the first inner frame 201511, and the second end 201612 of the first connecting rod 20161 is hinged to the first outer frame 201512. The first connecting rod 20161 can be, but is not limited to, hinged to the first inner frame 201511 and the first outer frame 201512 via a pin. The first end 201621 of the second connecting rod 20162 is hinged to the rod body of the first connecting rod 20161, and the rod body of the first connecting rod 20161 is the portion located between the first end 201611 and the second end 201612. The second end 201622 of the second connecting rod 20162 can be hinged to other structural components of the keyboard body 201. It is worth noting that these other structural components of the keyboard body 201 can be any fixed-position structural component on the keyboard body 201. In this application, a fixed-position structural component refers to a structural component whose position remains unchanged regardless of the keyboard assembly's operating state. For example... Figure 12 The keyboard cover 2013 shown is a structure with a fixed position on the keyboard body 201. Similarly, the second connecting rod 20162 can be, but is not limited to, hinged to the first connecting rod 20161 and the keyboard body 2013 via a pin. Additionally, in one possible embodiment of this application, the second end 201622 of the second connecting rod 20162 can be located on the side of the first end 201621 facing away from the first inner frame 201511.

[0190] You can continue to refer to Figure 16 In this application, the second frame 20152 may include a second inner frame 201521 and a second outer frame 201522. The second inner frame 201521 and the second outer frame 201522 are arranged side by side, and the second inner frame 201521 is located on the side of the second outer frame 201522 facing the button 2012. Additionally, the second outer frame 201511 is used to... Figure 13aThe pivot connecting rod 2014 shown is fixedly connected, and the second inner frame 201521 is fixedly connected to multiple crossbars 20153. The connection method can be, but is not limited to, fastening with screws or other fasteners. The second outer frame 201522 and the second inner frame 201521 can be connected via a second connecting rod assembly 2017, which includes a third connecting rod and a fourth connecting rod. Similar to the first frame 20151 side, in this application, the first end of the third connecting rod is hinged to the second inner frame 201521, and the second end of the third connecting rod is hinged to the second outer frame 201522. The third connecting rod can be, but is not limited to, hinged to the second inner frame 201521 and the second outer frame 201522 via pins. The first end of the fourth connecting rod is hinged to the body of the third connecting rod, and the second end can be hinged to other structural components of the keyboard body 201; for example, it can be hinged to the keyboard cover 2013. Similarly, the fourth connecting rod can be, but is not limited to, hinged to the third connecting rod and the keyboard body 201 via a pin. Additionally, in one possible embodiment of this application, the second end of the fourth connecting rod can be located on the side of the first end facing away from the second inner frame 201521.

[0191] You can continue to refer to Figure 17 , Figure 17 The XY coordinate system is used to represent the movement direction of the first frame 20151 and the crossbar 20153. The positive direction of the Y-axis points towards the rotating shaft mechanism. Figure 17 Not shown in the image, please refer to the image below. Figure 13a The positive direction of the X-axis points to the second border (). Figure 17 Not shown in the image, please refer to the image below. Figure 16 Furthermore, in this application, the positive direction of the X-axis can be the same as or opposite to the arrangement direction of each row of buttons 2012. Figure 17 Taking the keyboard component 2 in the unfolded state as an example, the process of the first frame 20151 driving the horizontal bar 20153 to move will be explained.

[0192] In keyboard component 2 by Figure 17When the extended state is rotated to the closed state, the pivot mechanism 3 drives the first outer frame 201512 to move in the positive direction of the Y-axis. Consequently, the second end 201612 of the first connecting rod 20161 moves in the positive direction of the Y-axis. Since the second end 201622 of the second connecting rod 20162 is located in the positive direction of the Y-axis of the first connecting rod 20161, the movement of the second end 201612 along the positive direction of the Y-axis is equivalent to the movement of the second end 201612 towards the second end 201622 of the first connecting rod 20161. Furthermore, since the second end 201622 of the second connecting rod 20162 is structurally fixedly connected to the keyboard body 201, the second end 201622 of the second connecting rod 20162 is always in a fixed position, and the second connecting rod 20162 can only rotate around its second end 201622.

[0193] Reference Figure 18 , Figure 18 This describes the relative positional relationship between the first connecting rod 20161 and the second connecting rod 20162 when the keyboard assembly 2 is in the closed state. This is achieved through comparison. Figure 17 and Figure 18 It can be seen that in keyboard component 2, there is... Figure 17 The unfolded state shown Figure 18 During the rotation in the closed state shown, the angle between the first connecting rod 20161 and the second connecting rod 20162 in the X-axis direction decreases. As a result, the first end 201611 of the first connecting rod 20161 and the first end 201621 of the second connecting rod 20162 both move in the positive direction of the X-axis, thereby pushing the first inner frame 201511 to move in the positive direction of the X-axis. Under the action of the first inner frame 201511, each crossbar 20153 moves in the direction toward the second frame 20152.

[0194] Understandably, during the above process, the angle between the third connecting rod and the fourth connecting rod in the X-axis direction increases, and the first end of the third connecting rod and the first end of the fourth connecting rod both move in the positive direction of the X-axis to drive the second inner frame 201521 to move in the positive direction of the X-axis. Under the drive of the second inner frame 201521, each crossbar 20153 moves in a direction away from the first frame 20151.

[0195] Additionally, when keyboard component 2 is... Figure 18 The closed state shown Figure 17 When rotated in the unfolded state shown, each crossbar 20153 moves along the negative X-axis under the influence of the first inner frame 201511 and the second inner frame 201521.

[0196] In this application, during the rotation of the keyboard assembly 2, the first outer frame 201512 and the second outer frame 201522 can move in a direction toward or away from the pivot mechanism, thereby driving the first inner frame 201511 and the second inner frame 201521 to move in the same direction as the arrangement direction of each row of keys 2013, so that the crossbar 20153 can move back and forth along the arrangement direction of each row of keys 2013. Each crossbar 20153 corresponds to one row of keys 2013. Based on this, in order to realize the raising and lowering of the keys 2013 in different folding states of the keyboard assembly 2, a pressing mechanism can be provided between the crossbar 20153 and the corresponding key 2013, so that the reciprocating movement of the crossbar 20153 presses and pushes the key 2013 to raise and lower.

[0197] In specific implementation, you can refer to Figure 19 , Figure 19 This diagram shows a partial enlarged view of the crossbar 20153 according to a possible embodiment of this application. The crossbar 20153 may be provided with a first abutting structure 201531, and there may be multiple first abutting structures 201531, the specific number of which can be determined according to the number of buttons 2012 corresponding to the crossbar 20153. In this embodiment of the application, the first abutting structure 201531 may be provided with a first inclined surface 2015311. In addition, the inclination angles of the first inclined surfaces 2015311 of the multiple first abutting structures 201531 may be the same or different.

[0198] Additionally, you can refer to Figure 20 , Figure 20 A schematic diagram showing the structure of mounting the crossbar 20153 to the keyboard body 201 is provided. The keyboard body 201 has multiple key slots 2018, and for each key slot 2018, at least one first abutment structure 201531 can be accommodated, for example... Figure 20 As shown, each button slot 2018 can accommodate two first abutting structures 201531.

[0199] In this application, the key 2012 may include a keycap 20121 and a lifting mechanism. The keycap 20121 covers and is fixed to the lifting mechanism to protect it. Additionally, the keycap 20121 serves as a force-bearing component of the key 2012; applying force to the keycap 20121 to press down the lifting mechanism enables the keyboard assembly 2 to perform its input function. The lifting mechanism can then raise the keycap 20121 after the force applied to it is removed. (See reference...) Figure 21 , Figure 21 A schematic diagram of a lifting mechanism 20122 according to a possible embodiment of this application is shown. The lifting mechanism 20122 can be accommodated in, for example... Figure 20The button slot 2018 shown is provided with a second abutting structure 201221 in the lifting mechanism 20122. This second abutting structure 201221 may have a second inclined surface 2012211. Furthermore, each lifting mechanism 20122 may have multiple second abutting structures 201221, for example... Figure 21 As shown, each lifting mechanism 20122 may be provided with two second abutment structures 201221. When each lifting mechanism 20122 has multiple second abutment structures 201221, the inclination direction of the second inclined surface 2012211 of the multiple second abutment structures 201221 may be the same or different.

[0200] Reference Figure 22 , Figure 22 This demonstrates the interaction between the horizontal bar 20153 and the keys 2012 when the keyboard assembly 2 is in the unfolded state. Figure 22 In the illustrated embodiment, the keycaps are omitted for ease of illustrating the interaction between the crossbar 20153 and the button 2012. Additionally, with... Figure 17 compared to, Figure 22 The view angle of keyboard component 2 in the image has been adjusted, however, in Figure 22 and Figure 17 In this diagram, the Y-axis and X-axis point in the same direction.

[0201] like Figure 22 As shown in this application, for the correspondingly provided crossbar 20153 and button 2012, the buttons located in the same button slot 2018 are as follows: Figure 19 The first inclined surface 2015311 of the first abutment structure 201531 of the crossbar 20153 shown is as follows Figure 21 The second inclined surface 2012211 of the second abutment structure 201221 of the lifting mechanism 20122 shown can be arranged opposite to each other, and the second inclined surface 2012211 is located in the positive direction of the X-axis relative to the first inclined surface 2015311. Furthermore, in Figure 22 In the indicated state, the first inclined surface 2015311 and the oppositely arranged second inclined surface 2012211 can be spaced apart; or the first inclined surface 2015311 and the second inclined surface 2012211 can be in contact, but there is no pressure between them, or the pressure is small. At this time, the lifting mechanism 20122 is in the raised state, and the entire button 2012 can protrude as shown. Figure 12 The surface of the keyboard cover 2013 shown is designed to facilitate the input function of the keyboard assembly 2 by pressing the keys 2012.

[0202] As can be seen from the above embodiments, when the keyboard component 2 is composed of... Figure 22When the crossbar 20153 rotates from the unfolded state to the closed state, it can move along the positive X-axis, and the second inclined surface 2012211 of the second abutment structure 20122 is located in the positive X-axis direction relative to the first inclined surface 2015311 of the first abutment structure 201531. Therefore, when the crossbar 20153 moves along the positive X-axis, the first inclined surface 2015311 can apply a compressive force to the second inclined surface 2012211. (Refer to...) Figure 23 , Figure 23 This demonstrates the interaction between the crossbar 20153 and the key 2012 when keyboard assembly 2 is in the closed state. Figure 23 As can be seen, when the keyboard assembly 2 is in the closed state, the lifting structure 20122, under the pressure exerted by the first inclined surface 2015311 on the second inclined surface 2012211, causes the keycaps to descend, allowing the keys 2012 to be hidden within the corresponding key slots 2018. This results in a smaller thickness of the keyboard assembly 2 in the closed state, meeting the requirements of thinner electronic device designs and improving the user experience.

[0203] Furthermore, when the keyboard assembly 2 rotates from the closed state to the unfolded state, the crossbar 20153 moves along the negative X-axis. This reduces the pressure exerted by the first inclined surface 2015311 on the second inclined surface 2012211, allowing the lifting mechanism 2011 to lift the keycap 20121 from its corresponding key slot 2018 and enable the keycap 20121 to protrude outwards. Figure 12 The surface of the keyboard cover 2013 shown is used to implement the function of the key 2012.

[0204] It is worth mentioning that the solution of raising and lowering the key 2012 with the folded state of the keyboard component 2 provided in this application can be applied not only to the keyboard component 2 of this application, but also to other foldable electronic devices with keyboards. For example, it can be applied to a laptop computer. The specific setting method can be referred to the above embodiments of this application, and will not be described in detail here.

[0205] As can be seen from the foregoing description of the embodiments, reference can be made to... Figure 2 The support portion 202 of the keyboard assembly 2 can be used to support the host 1 mounted on the first support plate 2021. Therefore, the stability of the movement of the support portion 202 is required during the process of the keyboard assembly 2 changing from a closed state to an open state and from an open state to a closed state.

[0206] Based on this, refer to Figure 24 , Figure 24This is a schematic diagram of the structure of the rotating shaft mechanism 3 provided in another possible embodiment of this application. In this embodiment, the rotating shaft mechanism 3 may further include a cam 303. The cam 303 can rotate synchronously with the main shaft 3018 of the rotating assembly 301, that is, the cam 303 is relatively fixed to the main shaft 3018 in the radial direction along the main shaft 3018. A shaped hole may be provided on the cam 303, for example, but not limited to, a D-shaped hole. Simultaneously, the cross-section of the portion of the main shaft 3018 passing through the cam 303 is also set to a shaped cross-section that matches the shaped hole, so as to achieve radial positioning of the cam 303 and the main shaft 3018.

[0207] You can continue to refer to Figure 24 A cam groove 3031 is provided on the surface of the cam 303. Additionally, see [reference needed]. Figure 25a , Figure 25a This is a partial structural diagram of the keyboard assembly 2 in a closed state according to an embodiment of this application. Figure 25a The image shows the structure of the fourth support plate 2024 of the support portion 202 in the closed state. The fourth support plate 2024 is provided with an auxiliary support mechanism 20241, which includes a first support rod 202411 and a second support rod 202412. The first support rod 202411 and the second support rod 202412 are arranged crosswise, and the middle portions of the first support rod 202411 and the second support plate 202412 are hinged together.

[0208] Additionally, the fourth support plate 2024 is equipped with slide rails 20242 and 20243, which can extend in a direction away from the keyboard body 201. A first slider 20244 is disposed within slide rail 20242, and a second slider 20245 is disposed within slide rail 20243. (See also...) Figure 25a In this application, both the first slider 20244 and the second slider 20245 can be fixedly connected to the fourth support plate 2024.

[0209] As can be seen from the above embodiments, in order to make the movement of the rotating shaft mechanism 3 more stable, a rotating component 301 can be provided at each of the two ends in the length direction of the rotating shaft mechanism 3. In addition, in this application, a cam 303 can be provided for each rotating component 301.

[0210] In this way, the auxiliary support structure can be located between the two rotating components 301, and one end of the first support rod 202411 can be accommodated in the cam groove 3031 of a cam 303, while the other end is hinged to the first slider 20244. One end of the second support rod 202412 is accommodated in the cam groove 3031 of another cam 303, while the other end is hinged to the second slider 20245. (Refer to...) Figure 25b , Figure 25b Showing Figure 25a The structure of the fourth support plate 2024 of the support portion 202 shown in the keyboard assembly 2 in the unfolded state. (See also...) Figure 25a and Figure 25b , in the Figure 25a The closed state shown Figure 25b During the unfolded state shown, cam 303 can rotate with the main shaft 3018 of rotating assembly 301 to push one end of the first support rod 202411, which is housed in the corresponding cam groove 3031, and one end of the second support rod 202412, which is housed in the corresponding cam groove 3031, to move closer together along the axial direction of the main shaft 3018. Since the first support rod 202411 and the second support rod 202412 are hinged, during the above process, the first support rod 202411 can push the first slider 20244 to slide along the slide rail 20243 in a direction away from the keyboard body 201, and the second support rod 202412 can push the second slider 20245 to slide along the slide rail 20242 in a direction away from the keyboard body 201. Since both the first slider 20244 and the second slider 20245 are fixedly connected to the fourth support plate 2024, as the first slider 20244 and the second slider 20245 slide away from the keyboard body 201, they can push the fourth support plate 2024 to slide away from the keyboard body 201. This improves the movement stability of the support part 202 during the unfolding of the keyboard assembly 2, thereby enabling the keyboard assembly 2 to provide stable support for the host 1 mounted on the first support plate 2021, thus improving the user experience.

[0211] It is understood that in this application, the trajectory shape of the cam slide 3031 can be designed according to the movement direction of the first support rod 202411 and the second support rod 202412, as well as the first slider 20244 and the second slider 20245, so that the first slider 20244 and the second slider 20245 can slide stably during the rotation of the first support rod 202411 and the second support rod 202412 around their hinge point.

[0212] In addition to the structure described above, the hinge mechanism 3 provided in this application may also include an automatic opening and closing device 304, which may include a motor 3041. When the hinge mechanism 3 is applied to the keyboard assembly 2, the motor 3041 can drive the hinge mechanism 3 to move, thereby opening and closing the keyboard assembly 2 and simplifying the user's operation steps.

[0213] Furthermore, since users have personalized requirements regarding the viewing angle of foldable devices, they may subconsciously intervene in the unfolding and closing process of the keyboard assembly 2 driven by the motor 3041, based on their own needs. If the torque provided by the motor 3041 is insufficient, it may cause damage to the motor 3041 or other components. To solve this problem and ensure the safe and reliable operation of the motor 3041, the automatic opening and closing device 304 provided in this application may also include a protection mechanism 3042.

[0214] In specific implementation, you can refer to Figure 26 , Figure 26 A schematic diagram of the rotating shaft mechanism 3 according to one embodiment of this application is shown. In this embodiment, in addition to the aforementioned rotating component 301, the rotating shaft mechanism 3 also includes an automatic opening and closing device 304. The automatic opening and closing device 304 includes a motor 3041 and a protection mechanism 3042, which may be, but is not limited to, a clutch. The protection mechanism 3042 is located between the motor 3041 and the rotating component 301. The motor 3041 can drive the rotating shaft mechanism 3 to rotate, thereby realizing the automatic opening and closing function of the keyboard component. The protection mechanism 3042 protects the motor 3041. Under normal operating conditions, the motor 3041 transmits torque to the rotating component 301 through the protection mechanism 3042 to drive the rotating component 301 to rotate. When the load applied to the motor 3041 is too large, the protection mechanism 3042 can adjust the load applied to the motor 3041, thereby preventing damage to the motor.

[0215] Reference Figure 27 , Figure 27 This is a schematic diagram of the structure of a protection mechanism 3042 provided in an embodiment of this application. The protection mechanism 3042 includes a fixing frame 30421, which serves as a support for the entire protection mechanism 3042, providing support for other structures within the protection mechanism 3042. Furthermore, the fixing frame 30421 may be provided with a first fixing plate 304211 and a second fixing plate 304212, which are arranged opposite to each other to form an installation space between them.

[0216] Reference Figure 28 , Figure 28 for Figure 27 An exploded view of the protective mechanism 3042 is shown. In this application, the mounting bracket 30421 can be fixedly connected to the keyboard body 201 in the above embodiments, and the connection method can be, but is not limited to, a threaded connection.

[0217] You can continue to refer to Figure 28The protection mechanism 3042 also includes two rotating shaft assemblies, which can be referred to as the first rotating shaft assembly 30422 and the second rotating shaft assembly 30423 for ease of description. The first rotating shaft assembly 30422 and the second rotating shaft assembly 30423 are housed in the mounting space between the first fixing plate 304211 and the second fixing plate 304212. The first rotating shaft assembly 30422 includes a first shaft 304221, and the second rotating shaft assembly 30423 includes a second shaft 304231. The axes of the first shaft 304221 and the second shaft 304231 can be arranged parallel to each other. One end of the first shaft 304221 is fixed to the first fixing plate 304211, and the other end is fixed to the second fixing plate 304212. One end of the second shaft 304231 is fixed to the first fixing plate 304211, and the other end extends toward the second fixing plate 304212.

[0218] In addition, the first rotating shaft assembly 30422 also includes a first gear component 304222, which is sleeved on the first shaft 304221. The first gear component 304222 is rotatable around the first shaft 304221 and can slide along the axial direction of the first shaft 304221. Along the direction from the first fixed plate 304211 to the second fixed plate 304212, the first gear component 304222 is provided with a first gear structure 3042221 and a second gear structure 3042222, which are spaced apart. (See also...) Figure 28 The first gear component 304222 is also provided with a guide groove structure 3042223, which is located between the first gear structure 3042221 and the first fixing plate 304211. The guide groove structure 3042223 is provided with a guide groove 30422231, which may, but is not limited to, be spirally arranged.

[0219] In the specific configuration of the second rotating shaft assembly 30423, the second rotating shaft assembly 30423 is also provided with a second gear component 304232. This second gear component 304232 can be sleeved on the second shaft 304231 and can rotate around the second shaft 304231. (See also...) Figure 28 The second gear component 304232 may be provided with a third gear structure 3042321. The third gear structure 3042321 may mesh with the first gear structure 3042221.

[0220] The end of the second gear component 304232 facing the first fixing plate 304211 may also be provided with a first stop portion 3042322, which may have a notch 30423221. Additionally, the second rotating shaft assembly 30423 may also include a fixing pin 304233 and a sliding pin 304234. The fixing pin 304233 and the sliding pin 304234 are located on the side of the second gear component 304232 facing the first fixing plate 304211. (See also...) Figure 28 The fixing pin 304233 is sleeved on the second shaft 304231, and the fixing pin 304233 can be rotatably connected to the second shaft 304231. In addition, the fixing pin 304233 can extend from the first fixing plate 304211 to the outside of the installation space for fixed connection with the main shaft of the rotating assembly in the above embodiment.

[0221] In this application, in order to connect the fixing pin 304233 to the rotating shaft of the rotating assembly, the protection mechanism 3042 may further include an adapter 30424, which may be disposed on the side of the first fixing plate 304211 opposite to the second fixing plate 304212. The end of the fixing pin 304233 extending from the first fixing plate 304211 beyond the mounting space can be fixedly connected to the adapter 30424, and the adapter 30424 can be connected to, for example... Figure 26 The main shaft of the rotating assembly shown rotates synchronously.

[0222] For reference Figure 28 The adapter 30424 is provided with mounting holes 304241, and the main shaft 3018 of the rotating assembly 301 (see reference) Figure 7 The adapter 30424 can be installed in the mounting hole 304241, and the adapter 30424 and the spindle 3018 can rotate synchronously. As can be understood from the above embodiments, in this application, the cross-section of the portion of the spindle 3018 installed in the mounting hole 304241 can be an irregular cross-section, for example, a D-shaped cross-section. Therefore, the mounting hole 304241 of the adapter 30424 can also be set as an irregular hole that matches the cross-section of the spindle, for example, a D-shaped hole.

[0223] For reference Figure 29a , Figure 29a for Figure 27The protective mechanism 3042 is shown in view D. In this application, the fixing pin 304233 has a slot 3042331. The opening of the slot 3042331 is located at the end of the fixing pin 304233 that is away from the first fixing plate 304211, and the slot 3042331 extends toward the first fixing plate 304211. In this application, the surface of the fixing pin 304233 may also be provided with a guide structure 3042332. The guide structure 3042332 can be a protruding structure. The guide structure 3042332 can be inserted into the guide groove 30422231 of the guide groove structure 3042223 of the first gear component 3042222, and can slide along the guide groove 30422231.

[0224] In this application, during the sliding process of the guide structure 3042332 within the guide groove 30422231, the first gear component 304222 can be pushed to slide along the first rotating shaft. See also... Figure 28 In one possible embodiment of this application, the first rotating shaft assembly 30422 may also be provided with an assist mechanism 304223. This assist mechanism 304223 can provide assistance for the sliding of the first gear component 304222 along the first shaft 304221, thereby improving the reliability of the sliding of the first gear component 304222. In this application, the specific arrangement of the assist mechanism 304223 is not limited. An exemplary embodiment could be a torsion spring. One end of the assist mechanism 304223 can be fixedly connected to the first gear component 304222, and the other end can be fixedly connected to the first shaft 304221. By reasonably designing the shape of the torsion spring, during the sliding process of the first gear component 304222 along the first shaft 304221, the elastic force generated by the deformation of the torsion spring can promote the relative sliding of the first gear component 304222 and the first shaft 304221.

[0225] Reference Figure 29a The sliding pin 304234 is located between the fixed pin 304233 and the first stop portion 3042322, and the sliding pin 304234 is sleeved on the... Figure 28 The second shaft 304231 is shown, and it can slide along the axial direction of the second shaft 304231. In this application, a pin shaft 3042341 is provided at one end of the sliding pin 304234 facing the fixed pin 304233. The pin shaft 3042341 can be inserted into the slot 3042331 of the fixed pin 304233 and can slide along the slot 3042331.

[0226] It is understood that in this application, the slot 3042331 on the fixing pin 304233 can be one or more. The pin shaft 3042341 provided on the sliding pin 304234 can be provided corresponding to the slot 3042331, so as to improve the stability of the sliding pin 304234 sliding along the slot 3042331 of the fixing pin 304233.

[0227] In addition, continue to refer to Figure 29a A second stop portion 3042342 is provided at one end of the sliding pin 304234 away from the fixed pin 304233. The second stop portion 3042342 can be a protruding structure. When the sliding pin 304234 slides in a direction away from the first fixed plate 304211, the second stop portion 3042342 can be inserted into the notch 30423221 of the first stop portion 3042322, thereby locking the sliding pin 304234 relative to the second gear component 304232. Since the pin shaft 3042341 of the sliding pin 304234 is always located in the slot 3042331 of the fixed pin 304233, and the fixed pin 304233 is fixedly connected to the main shaft of the rotating assembly, when the second stop part 3042342 is inserted into the notch 30423221 of the first stop part 3042322, the second gear part 304232 can rotate synchronously with the fixed pin 304233.

[0228] You can continue to refer to Figure 29a A first engaging portion may also be provided on the side of the sliding pin 304234 facing the first gear component 304222. Figure 29a (Not shown in the image), and a second engaging portion may also be provided on the first gear component 304222. Figure 28 (Not shown in the image), the first engaging portion can engage with the second engaging portion so that when the first gear 304222 slides along the first shaft 304221, it can push the sliding pin 304234 to slide along the second shaft 304231 in the opposite direction to the first gear 304222. In this application, the specific structure of the first engaging portion and the second engaging portion is not limited. For example, the first engaging portion can be a protrusion, and its shape can be, but is not limited to, trapezoidal. Additionally, the second engaging portion can be a groove, with the protrusion engaging into the groove to achieve the engagement of the first engaging portion and the second engaging portion. In other embodiments of this application, the first engaging portion can also be a groove, while the second engaging portion can be a protrusion.

[0229] You can continue to refer to Figure 29aA motor connector 304235 may also be provided at one end of the second shaft 304231 facing the second fixed plate 304212. This motor connector 304235 can be used for fixed connection with the rotating shaft of a motor. Additionally, the second rotating shaft assembly 30423 may also include an adapter 30425, which is located between the second rotating shaft assembly 30423 and the second fixed plate 304212, and abuts against the second rotating shaft assembly 30423. In this application, the adapter 30425 can be sleeved on the second shaft, connected to the motor connector 304235, and can rotate with the motor connector 304235.

[0230] like Figure 29a As shown, a fourth gear structure 304251 may be provided on the surface of the adapter 30425, and the second gear structure 3042222 of the first gear component 304222 meshes with the fourth gear structure 304251. In this application, Figure 29a The diagram shows the structure of the protective mechanism 3042 when the keyboard assembly is in the closed state. (Refer to...) Figure 29b , Figure 29b for Figure 29a The E-direction view. Figure 29b The structure of the adapter 30424 side is shown in this closed state. In this closed state, the first gear structure 3042221 and the third gear structure 3042321 mesh, and the second gear structure 3042222 and the fourth gear structure 304251 mesh. In addition, the guide structure 3042332 on the fixing pin 304233 is inserted into the guide groove 30422231 of the guide groove structure 3042223.

[0231] During the process of the keyboard component changing from a closed state to an expanded state, such as Figure 26 The motor 3041 shown rotates and drives the adapter 30425 to rotate via the motor connector 304235. Since the second gear structure 3042222 of the first gear component 304222 meshes with the fourth gear structure 304251 of the adapter 30425, the rotation of the adapter 30425 drives the first gear component 304222 to rotate. Furthermore, since the first gear structure 3042221 of the first gear component 304222 meshes with the third gear structure of the second gear component 304232, the rotation of the first gear component 304222 drives the second gear component 304232 to rotate.

[0232] For reference Figure 29aIn the closed state, the second stop portion 3042321 of the sliding pin 304234 is inserted into the notch 3042322 of the first stop portion 3042322 of the second gear component 304232, and the pin shaft 3042341 of the sliding pin 304234 is inserted into the slot 3042331 of the fixing pin 304233. Thus, during the process of the keyboard assembly changing from the closed state to the open state, the rotation of the first gear component 304222 drives the rotation of the second gear component 304232, which in turn drives the sliding pin 304234 and the fixing pin 304233 to rotate accordingly. The fixing pin 304233 is connected to the main shaft of the rotating assembly via an adapter 30424, thereby allowing the main shaft of the rotating assembly to rotate with the fixing pin 304233.

[0233] Furthermore, during the rotation of the first gear component 304222, the guide structure 3042332 of the fixing pin 304233 can slide along the guide groove 30422231 of the guide groove structure 3042223. The guide groove 30422231 of the guide groove structure 3042223 interacts with the guide structure 3042332 of the fixing pin 304233. Through proper design, the guide structure 3042332 of the fixing pin 304233 can push the first gear component 304222 to slide along the first shaft 304221 towards the second fixing plate 304212 as the fixing pin 304233's guide structure 304233 slides along the guide groove 3042223's guide groove 30422231. As can be seen from the above embodiments, the sliding pin 304234 can slide synchronously with the first gear component 304232. During the process of the first gear component 304222 sliding along the first shaft 304221 toward the second fixed plate 304212, the sliding pin 304234 can be pushed to slide along the second shaft 304231 toward the first fixed plate 304211.

[0234] Reference Figure 30a , Figure 30a A schematic diagram of the protective mechanism 3042 is shown when the keyboard assembly is in the unfolded state. (Refer to...) Figure 30b , Figure 30b for Figure 30a The F-direction view. Figure 30b The structure on the adapter 30424 side is shown in the closed state. When the keyboard assembly is in the unfolded state, the first gear structure 3042221 and the third gear structure 3042321 are misaligned to disengage the meshing relationship between the first gear member 304222 and the second gear member 304232. However, at this time, the second gear structure 3042222 and the fourth gear structure 304251 are still in a meshing state. In addition, at this time, the second stop portion 304234 of the sliding pin 304234 disengages from the second gear member 304232. Figure 28The notch 30423221 of the first stop portion 3042322 shown means that there is no connection between the sliding pin 304234 and the second gear component 304232.

[0235] It is understandable that the closing of the keyboard assembly can usually be achieved through user operation. In specific implementation, the user can apply a force towards the keyboard body to the first support plate of the keyboard assembly's support portion. As described in the foregoing embodiments, during the process of the keyboard assembly changing from an unfolded state to a closed state, the movement of the first support plate towards the keyboard body can drive the main shaft of the rotating assembly to rotate. See also... Figure 29a and Figure 30a During the process of the keyboard assembly changing from the unfolded state to the closed state, the protective mechanism is activated. Figure 30a The state shown Figure 29a The motion process is shown in the diagram. Since the main shaft of the rotating assembly and the adapter 30424 can rotate synchronously, during this process, the first gear 304222 slides along the first shaft 304221 towards the first fixed plate 304211 under the cooperation of the guide structure 3042332 and the guide groove 30422231 of the fixed pin 304233. This causes the corresponding gear structures of the first gear 304222 and the second gear 304232 to re-mesh. Furthermore, during the sliding of the first gear 304222 towards the first fixed plate 304211, it can drive the sliding pin 304234 to slide towards the second fixed plate 304212, thereby causing the second stop portion 3042342 of the sliding pin 304234 to re-insert into the notch 30423221 of the first stop portion 3042322 of the second gear 304232.

[0236] After understanding the structure and working principle of the protection mechanism 3042 provided in this application, the following section discusses how the protection mechanism 3042 is used for... Figure 26 The protection implementation method of the motor 3041 shown will be introduced.

[0237] Reference Figure 31 , Figure 31 This is a cross-sectional view of a protection mechanism 3042 provided in an embodiment of this application. For ease of explanation, in... Figure 31 The cross-sectional structure of the second rotating shaft assembly 30423 is shown only, while the cross-sectional structure of the first rotating shaft assembly 30422 is omitted.

[0238] For reference Figure 31 The adapter 30425 has a receiving cavity 304252, the opening of which faces the motor connector 304235. The motor connector 304235 includes a rotation center 3042351, which can be inserted into the receiving cavity 304252. (See also...) Figure 31 In this application, the second shaft 304231 can be inserted into the rotation center member 3042351. In addition, one end of the rotation center member 3042351 opposite to the adapter 30425 can pass through the second fixing plate 304212 for connection with the motor.

[0239] Additionally, the motor connector 304235 may also include a housing 3042352, which is sleeved on the rotating center component 3042351, and the housing 3042352 can be fixed to the second fixing plate 304212. Figure 31 As can be seen, in one possible embodiment of this application, a ball bearing can be provided between the housing 3042352 and the rotating center component 3042351. There can be multiple balls bearings, and both the housing 3042352 and the rotating center component 3042351 abut against the balls bearings. This allows the friction between the housing 3042352 and the rotating center component 3042351 to be rolling friction, thereby reducing the risk of damage to both and extending their service life.

[0240] Continue to refer to Figure 31 The adapter 30425 is further provided with an elastic element 304253, which is housed in the receiving cavity 304252 and sleeved on the rotation center element 3042351 of the motor connector 304235. In this application, the specific arrangement of the elastic element 304253 is not limited; it may, for example, include multiple stacked spring sheets. Furthermore, deformation of the elastic element 304253 can generate an elastic force between the adapter 30425 and the rotation center element 3042351.

[0241] The adapter 30425 may also be provided with a rolling element 304254, which is housed within the receiving cavity 304252. Furthermore, the bottom wall of the receiving cavity 304252 of the adapter 30425 is provided with a groove, within which the rolling element 304254 can be housed. One end of the elastic element 304253 presses the rolling element 304254 against the bottom wall of the receiving cavity 304252, while the other end abuts against the rotating center element 3042351. In this application, the specific arrangement of the rolling element 304254 is not limited; it can be exemplarily a ball bearing or a roller bearing. Additionally, there may be one or more rolling elements 304254, and each rolling element 304254 can be housed in a corresponding groove.

[0242] You can continue to refer to Figure 31A pressure block 304255 may also be provided between the elastic member 304253 and the rolling member 304254. The elastic member 304253 presses the rolling member 304254 into the corresponding groove through the pressure block 304255. The surface of the pressure block 304255 that contacts the rolling member 304254 is provided with an arc-shaped groove. At least a portion of the rolling member 304254 can be accommodated in the arc-shaped groove to prevent the rolling member 304254 from falling off during movement.

[0243] In this application, a gasket 304236 is further provided between the sliding pin 304234 and the second gear component 304232. The material of the gasket 304236 may be, but is not limited to, polyformaldehyde (POM). Both the sliding pin 304234 and the second gear component 304232 abut against the gasket 304236 to generate torque during the relative rotation of the second gear component 304232 and the sliding pin 304234, thereby reducing wear on both and improving the reliability of the structure.

[0244] Understandably, when the keyboard assembly is in the unfolded state and is manually closed, the sliding pin 304234 can rotate with the fixed pin 304233. At this time, rotational friction can be generated between the sliding pin 304234 and the second gear component 304232. This friction can generate different torques in different states of the keyboard assembly, providing consumers with different tactile experiences.

[0245] Furthermore, using the pivot mechanism provided in this application, during the opening and closing process of the keyboard assembly driven by the motor, if the process is interfered with and the torque delivered by the adapter 30425 to the motor connector 304235 exceeds a set value (i.e., motor overload), the torque generated by the adapter 30425 during rotation can overcome the elastic compressive force applied to the rolling element 304235 by the elastic element 304253, thereby causing the rolling element 304254 to disengage from the corresponding groove. At this time, the connection between the adapter 30425 and the motor connector 304235 can be severed, and the torque acting on the adapter 30425 will not act on the motor connector 304235, thus preventing damage to the motor connected to the motor connector 304235.

[0246] Therefore, in this application, the adapter 30425 can be used as a torque limiter between the protection mechanism 3042 and the motor 3041 to prevent excessive external torque from acting on the motor, thereby limiting torque overload and protecting the motor 3041.

[0247] The automatic opening and closing device provided in this application can generate different torques by switching the connection relationship between the adapter 30425 and the motor connector 304235 when switching between manual and electric operating modes. This satisfies the torque requirements of both manual and electric operating modes, thus satisfying the user experience. Furthermore, the torque between the adapter 30425 and the motor connector 304235, as well as the torque between the second gear 304232 and the adapter 30425, can be achieved through the elastic element 304253. This helps reduce the space occupied by the automatic opening and closing device, enabling its miniaturized design.

[0248] In this application, to improve the stability of the keyboard assembly's movement during the opening and closing process driven by the automatic opening and closing device, multiple sets of automatic opening and closing devices can be set in the pivot mechanism. For example, an automatic opening and closing device can be set at each of the two ends in the length direction of the pivot mechanism. In this way, by using two automatic opening and closing devices to drive synchronously, the stability of the keyboard assembly's movement can be effectively improved.

[0249] In this application, the rotating component 301 of the rotating shaft mechanism 3 can be configured in other ways besides the configuration provided in the above embodiments. For example, see [link to example]. Figure 32a , Figure 32a This is a schematic diagram of the structure of a rotating assembly 301 provided in another embodiment of this application. Figure 32a The diagram shows a schematic of the rotating component 301 when the keyboard component 2 is in the closed state. Additionally, refer to... Figure 32b , Figure 32b A schematic diagram of the rotating component 301 is shown when the keyboard component 2 is in the unfolded state.

[0250] Can be referred to together Figure 32a and Figure 32b The rotating assembly 301 includes a connector 3011, a first fixing member 3012, and a second fixing member 3013. The first fixing member 3012 and the second fixing member 3013 can be fixedly connected to the keyboard body, and the connection method can be, but is not limited to, using screws or other fasteners. Furthermore, the first fixing member 3012 and the second fixing member 3013 can serve as support members for the entire rotating assembly 301. The first fixing member 3012 and the second fixing member 3013 are spaced apart, and other structures of the rotating assembly 301 can be connected to the first fixing member 3012 and the second fixing member 3013 directly or indirectly.

[0251] To facilitate understanding of the connection relationships between the various structures of the rotating assembly 301, please refer to... Figure 33 , Figure 33 for Figure 32aAn exploded view of the rotating assembly 301 shown. In this embodiment, the connector 3011 includes a body portion 30111 arranged in an elongated structure, which can be fixedly connected to the aforementioned main unit support member. The connection method can be, but is not limited to, locking with fasteners such as screws. Continuing to refer to... Figure 33 The main body 30111 may be in two sections, and the connector 3011 also includes a connecting structure disposed between the two sections of the main body 30111, which is used to connect the two ends of the main body 30111.

[0252] In this application, the rotating assembly 301 further includes a first connecting rod 3016 and a second connecting rod 3017. The first connecting rod 3016 is located between the connecting member 3011 and the second connecting rod 3017. The end of the first connecting rod 3016 facing the connecting member 3011 is rotatably connected to the connecting member 3011 via a first rotating shaft 3015a, and the end of the first connecting rod 3016 facing the second connecting rod 3017 is rotatably connected to the second connecting rod 3017 via a second rotating shaft 3015b.

[0253] You can continue to refer to Figure 33 The rotating assembly 301 provided in this embodiment of the application may further include a main shaft 3018, which passes through a first fixing member 3012, a second connecting rod 3017, and a second fixing member 3013. The main shaft 3018 is rotatable relative to the first fixing member 3012 and the second fixing member 3013. Furthermore, in the radial direction of the main shaft 3018, the second connecting rod 3017 is fixed relative to the main shaft 3018, allowing the second connecting rod 3017 to rotate synchronously with the main shaft 3018 around its axis. In one possible embodiment of the application, to fix the second connecting rod 3017 relative to the main shaft 3018 in the radial direction, a shaped hole may be provided on the second connecting rod 3017, such as, but not limited to, a D-shaped hole. At the same time, the cross section of the part of the main shaft 3018 that passes through the second connecting rod 3017 is also set to a non-circular cross section that can match the non-circular hole, so as to achieve the radial limitation of the second connecting rod 3017 and the main shaft 3018.

[0254] In this application, in order for the rotating component 301 to provide damping force at the corresponding rotation position during the entire movement of the rotating shaft mechanism, so that the rotating shaft mechanism can be maintained at the corresponding rotation position, please refer to... Figure 33 In one possible embodiment of this application, the rotating assembly 301 may also be provided with an elastic element 3019, which can accumulate elastic force when compressed. Figure 33As shown, the elastic element 3019 can be disposed on the side of the first fixing member 3012 opposite to the second fixing member 3013. This application does not limit the specific arrangement of the elastic element 3019; it can, for example, include elastic discs, which can be one or more. When the elastic element 3019 includes multiple elastic discs, these discs can be stacked. Additionally, see [reference needed]. Figure 33 The elastic element 3019 can be sleeved on the main shaft 3018. In this embodiment, when the elastic element 3019 is compressed, it will generate an elastic force along the axial direction of the main shaft 3018.

[0255] In addition, to prevent the elastic element 3019 from falling off the spindle 3018, a limiting member 3020 can be provided on the side of the elastic element 3019 facing away from the first fixing member 3012. This limiting member 3020 can be, for example, a nut, to facilitate assembly and disassembly. The limiting member 3020 is sleeved on the spindle 3018 and limits the elastic element 3019 along the axial direction of the spindle 3018. In this application, to apply an effective force to the elastic element 3019, a set of washers 3021 can also be provided. This set of washers 3021 is sleeved on the spindle 3018, and the elastic element 3019 is disposed between these washers 3021. Furthermore, the outer diameter of the washers 3021 can be greater than or equal to the outer diameter of the elastic element 3019. The limiting member 3020 can abut against the washers 3021 located on the side of the elastic element 3019 facing away from the first fixing member 3012.

[0256] It is worth mentioning that in this application, the elastic element 3019 can deform along the axial direction of the main shaft 3018, and the elastic force generated by the deformation of the elastic element 3019 can act on the first fixing member 3012 to generate friction between the first fixing member 3012 and the elastic element 3019. This friction can hinder the rotation of the main shaft 3018. Furthermore, since the second connecting rod 3017 can rotate synchronously with the main shaft 3018, and the second connecting rod 3017 can drive the connecting member 3011 to rotate, the connecting member 3011 is also fixed to the main shaft 3018. Figure 3b The main support member 4 of the first support plate 2021 shown is fixedly connected. Therefore, when the rotation of the second link 3017 with the main shaft 3018 is hindered, the movement of the first support plate 2021 will be hindered, thus converting the elastic force generated by the elastic member 3019 into a damping force that hinders the rotation of the shaft mechanism.

[0257] It is understandable that the host 1 can be fixed to the first support plate 3021. When the host 1 reaches a certain rotation position as it rotates with the first support plate 3021, if the torque generated by the gravity of the host 1 is equal to the torque generated by the damping force of the aforementioned rotating shaft mechanism 3, then the first support plate 3021 can be suspended at the corresponding rotation position without the action of external force.

[0258] Since the damping force required by the rotating shaft mechanism 3 varies at any rotational position, and this change in damping force can be achieved by changing the elastic force generated by the elastic element 3019, the change in the elastic force of the elastic element 3019 can be achieved by changing its deformation. In one possible embodiment of this application, in order to enable the elastic element 3019 to have corresponding deformation at different rotational positions, a pressing contact surface can be provided between the first fixing member 3012 and the elastic element 3019. For specific implementation, please refer to... Figure 33 A first pressing structure 3022 is provided between the elastic member 3019 and the first fixing member 3012. The first pressing structure 3022 is sleeved on the main shaft 3018, and the elastic member 3019 can press the first pressing structure 3022 against the first fixing member 3012, so that the first pressing structure 3022 abuts against the first fixing member 3012 under the elastic force of the elastic member 3019. Furthermore, the first pressing structure 3022 is relatively fixed to the main shaft 3018 in the radial direction. A shaped hole can be provided on the first pressing structure 3022, for example, but not limited to, a D-shaped hole. Simultaneously, the portion of the main shaft 3018 that passes through the first pressing structure 3022 is also configured with a shaped cross-section that matches the shaped hole, thereby limiting the first pressing structure 3022 and the main shaft 3018 in the radial direction.

[0259] In this embodiment of the application, the first extrusion structure 3022 can be referred to Figure 9 The first extrusion structure 3022 shown is configured and will not be described in detail here. As can be seen from the above embodiment, the end face of the first extrusion structure 3022 facing the first fixing member 3012 may be provided with a first groove 30221.

[0260] Additionally, a second extrusion structure 3026 may be provided in the rotating assembly 301, as shown in the reference. Figure 34 , Figure 34 This is a schematic diagram of the second extrusion structure 3026 provided for one possible embodiment of this application. See also... Figure 33 and Figure 34The second extrusion structure 3026 is disposed between the first extrusion structure 3022 and the first fixing member 3012, and the main shaft 3018 is rotatably connected to the second extrusion structure 3026. The elastic member 3019 can press the first extrusion structure 3022 against the second extrusion structure 3026. Furthermore, a first protrusion 30261 can be provided on the end face of the second extrusion structure 3026 facing the first extrusion structure 3022, and this first protrusion 30261 can correspond to the first groove 30221 of the first extrusion structure 3022. It is understood that in other embodiments of this application, the first groove 30221 can also be provided on the end face of the second extrusion structure 3026 facing the first extrusion structure 3022, and the first protrusion 30261 can also be provided on the end face of the first extrusion structure 3022 facing the second extrusion structure 3026.

[0261] When the corresponding first protrusion 30261 falls into the first groove 30221, so that the first groove 30221 and the first protrusion 30261 engage, the total length of the first pressing structure 3022 and the second pressing structure 3026 in the axial direction along the main shaft 3018 is minimized. At this time, the compressive force on the elastic element 3019 is minimized, resulting in the minimum elastic force, and thus the friction between the first pressing structure 3022 and the second pressing structure 3026 is minimized. When the first pressing structure 3022 and the second pressing structure 3026 rotate relative to each other, and the first groove 30221 and the first protrusion 30261 are misaligned, the total length of the first pressing structure 3022 and the second pressing structure 3026 in the axial direction along the main shaft 3018 increases, thereby causing the elastic element 3019 to accumulate elastic force. Under this elastic force, the friction between the first pressing structure 3022 and the second pressing structure 3026 increases, thereby increasing the damping force of the rotating shaft mechanism.

[0262] It is worth mentioning that, in this application, the first groove 30221 and the first protrusion 30261 can be reasonably designed so that the damping force of the pivot mechanism 3 is maximized when the corresponding keyboard component is in the closed state, so that the keyboard component can be stably maintained in the closed state.

[0263] You can continue to refer to Figure 33 In this application, the rotating assembly 301 may also include an elastic element 3023, which may be exemplarily a torsion spring. See also... Figure 32a and Figure 33The elastic element 3023 is disposed on the side of the second fixing element 3013 opposite to the first fixing element 3012, and is sleeved on the main shaft 3018, allowing it to rotate relative to the main shaft 3018. Additionally, the rotating assembly 301 includes a rotating fixing element 3027 located on the side of the elastic element 3023 opposite to the second fixing element 3013. The rotating fixing element 3027 is sleeved on the main shaft 3018 and is fixedly connected to the main shaft 3018 in the radial direction. The rotating fixing element 3027 has a slot 30271, into which one end of the elastic element 3023 can be engaged, and the other end can be fixed to the second fixing element 3013. Thus, during the rotation of the spindle 3018, the elastic element 3023 undergoes elastic deformation, generating an elastic force around the axis of the spindle 3018. Based on this, through proper design, the elastic force generated by the elastic element 3023 can provide auxiliary force for the rotation of the spindle 3018. Therefore, even with a small force applied to the connecting member 3011, the spindle 3018 can be driven to rotate, which improves the user's comfort when opening and closing the keyboard assembly using this rotating component 301.

[0264] In addition, the rotating assembly 301 may also be provided with a sleeve 3028, which can be sleeved on the main shaft 3018, and the elastic element 3023 can be sleeved on the sleeve 3028. The sleeve 3028 can provide a guiding effect for the axial movement of the elastic element 3023, so as to improve the stability of the movement of the elastic element 3023.

[0265] You can continue to refer to Figure 33 The rotating assembly 301 may also include a third link 3024, which is slidable along the second fixing member 3013. Additionally, see [reference needed]. Figure 35 , Figure 35 for Figure 32a The diagram shows the structure of the rotating assembly 301 from another angle. In this embodiment, a slide rail 30133 is provided on the side of the second fixing member 3013 facing away from the connecting member 3011, and the third connecting rod 3024 can be accommodated in the slide rail 30133 and can slide along the slide rail 30133.

[0266] In some embodiments of this application, to prevent the third link 3024 from detaching from the slide rail 30133, reference can be continued. Figure 35A first limiting part 301331 may be provided on the side wall of the slide rail 30133, and a second limiting part 30242 may be provided on the third connecting rod 3024. The second limiting part 30242 can engage with the first limiting part 301331 and slide within the first limiting part 301331. The first limiting part 301331 may be a groove, and the second limiting part 30242 may be a protrusion, so that the protrusion can engage with the groove. It is understood that in some embodiments of this application, the first limiting part 301331 may also be a protrusion, and the second limiting part 30242 may be a groove. Thus, the cooperation of the first limiting part 301331 and the second limiting part 30242 can provide guidance for the sliding of the third connecting rod 3024 along the slide rail 30133, thereby improving the reliability of the movement of the third connecting rod 3024.

[0267] During the rotation of the rotating assembly 301, in order to achieve the sliding of the third link 3024 within the slide rail 30133, by Figure 33 It can be seen that the third link 3024 has a connecting portion 30241 on the side facing the second fixing member 3013. Since the rotation of the rotating assembly 301 can be achieved by the rotation of the main shaft 3018, in this application, the third link 3024 can be connected to the main shaft 3018 through the connecting portion 30241. For specific implementation, please refer to... Figure 33 The rotating assembly 301 provided in this application may also be provided with a rocker arm structure 3029, which may be disposed on the side of the second fixing member 3013 opposite to the first fixing member 3012. The rocker arm structure 3029 may be sleeved on the main shaft 3018. In addition, the rocker arm structure 3029 is fixedly connected to the main shaft 3018 in the radial direction along the main shaft 3018 so that the rocker arm structure 3029 can rotate synchronously with the main shaft 3018. The rocker arm structure 3029 has a protrusion 30291.

[0268] Additionally, you can refer to Figure 36a , Figure 36a for Figure 35 The cross-sectional view at GG of the rotating assembly 301 shown is included. See also... Figure 33 and Figure 36a A track groove 30241 can be provided at the connecting part 30241 of the third link 3024. The protrusion 30291 of the rocker arm structure 3029 can be inserted into the track groove 302411 and can contact the groove wall of the track groove 302411. In this way, during the rotation of the main shaft 3018, the rocker arm structure 3029 can be driven to rotate synchronously, thereby causing the protrusion 30291 of the rocker arm structure 3029 to slide along the groove wall of the track groove 302411.

[0269] It is understandable that by reasonably designing the trajectory groove 302411, the motion trajectory of the third link 3024 can be designed. For example, the rotation assembly 301 can be positioned as follows: Figure 36a In the closed state shown, the protrusion 30291 of the rocker arm structure 3029 abuts against the groove wall of the opposite connecting member 3011 of the track groove 302411, thereby allowing the third connecting rod 3024 to be hidden in the second fixing member 3013. Additionally, see also... Figure 36b , Figure 36b The relative position of the protrusion 30291 of the third link 3024 within the track groove 302411 when the rotating assembly 301 is in the intermediate state from the closed state to the unfolded state. Figure 36b It can be seen that, corresponding to this intermediate state, the track groove 302411 can be provided with a recess 3024111, and the protrusion 30291 can extend into the recess 3024111. In the rotating assembly 301... Figure 36b In the intermediate state shown, as it continues to unfold, the protrusion 30291 can press against the sidewall of the recess 302411 to push the third link 3024 to slide toward the connector 3011. (Refer to...) Figure 36c , Figure 36c The relative position of the protrusion 30291 of the third link 3024 within the track groove 302411 when the rotating assembly 301 is in the deployed state. Figure 36c In the unfolded state, the third link 3024 can extend from the second fixing member 3013 toward the connecting member. For example, when this rotating assembly 301 is used in a keyboard assembly, the third link 3024 can slide toward the keyboard body during the process of the keyboard assembly moving from the closed state to the unfolded state. Conversely, during the process of the keyboard assembly moving from the unfolded state to the closed state, the third link 3024 can slide within the slide rail in a direction away from the connecting member 3011, thereby causing the third link 3024 to slide in a direction away from the keyboard body.

[0270] It is worth mentioning that, when the hinge mechanism provided in this embodiment of the present application is used in a keyboard assembly, the third link 3024 can be used in conjunction with the aforementioned... Figure 13aThe keyboard body 201 shown is connected to the hinge connector 2014. Thus, as the third link 3024 slides with the spindle 3018, it can drive the hinge connector 2014 to move in a direction toward or away from the hinge mechanism 3. It is understood that in this application, when the third link 3024 slides toward the keyboard body 201, it can drive the hinge connector 2014 to move in a direction away from the hinge mechanism 3, and when the third link 3024 slides away from the keyboard body 201, it can drive the hinge connector 2014 to move in a direction toward the hinge mechanism 3. Alternatively, when the third link 3024 slides toward the keyboard body 201, it can drive the hinge connector 2014 to move in a direction toward the hinge mechanism 3, and when the third link 3024 slides away from the keyboard body 201, it can drive the hinge connector 2014 to move in a direction away from the hinge mechanism 3. Therefore, when the keyboard assembly is in the unfolded state, the keys on the keyboard body 201 are raised; and when the keyboard assembly is in the closed state, the keys on the keyboard body 201 are lowered. The specific configuration of the keyboard body can be found in the above embodiment, and will not be repeated here.

[0271] In addition, when the rotating shaft mechanism is also provided with an automatic opening and closing device, the connection relationship between the rotating component and the automatic opening and closing device in this embodiment of the application, the movement mode of the automatic opening and closing device driving the rotating component, and the specific setting mode of the automatic opening and closing device can all refer to the above embodiments, and will not be repeated here.

[0272] It is worth mentioning that, in this application, the structure including the support portion 202 and the pivot mechanism 3 mentioned in any of the above embodiments can be defined as a support assembly. Besides adopting the specific structure of the keyboard assembly 2 described in the above embodiments to achieve the rotation of the first support plate 2021 driving the third support plate 2023 to slide in a direction toward or away from the pivot mechanism 3, this support assembly can also be configured without relying on the structure of the keyboard assembly 2, so that when the first support plate 2021 rotates around the pivot mechanism 3, it can drive the third support plate 2023 to slide in a direction toward or away from the pivot mechanism 3, thereby forming a stable support structure between the first support plate 2021, the second support plate, and the third support plate 2023.

[0273] Furthermore, this support assembly can be used in an electronic device, which may also include a host 1, such as a tablet computer as described in the preceding embodiments. The host 1 can be fixed to the first support plate 2021, and the host 1 can move along a set trajectory with the first support plate 2021. In addition, during the movement of the first support plate 2021 and the sliding of the third support plate 2023 towards or away from the rotating shaft mechanism 3, the first support plate 2021, the second support plate, and the third support plate 2023 can form a triangular support structure around the rotating shaft mechanism 3, which can help improve the support stability of the support part 202 for the host 1, thereby improving the structural reliability of the electronic device.

[0274] In one possible embodiment of this application, the structure including the protection mechanism 3042 and the motor mentioned in any of the above embodiments can be defined as a motor assembly. Besides employing the specific structure dependent on the keyboard assembly 2 described in the above embodiments to achieve motor protection, this motor assembly can also be configured without relying on the structure of the keyboard assembly 2. When the motor drives the rotating center component to rotate, and the torque acting on the adapter 30424 is less than the connection force between the adapter 30424 and the rotating center component, the adapter 30424 connects to the motor connector, rotates with the rotating center component, and drives the first gear component to rotate around the first shaft; the torque of the first gear component is transmitted to the second rotating shaft assembly. When the torque acting on the second rotating shaft assembly is transmitted to the adapter 30424 through the first gear component, and the torque acting on the adapter 30424 is greater than the connection force between the adapter 30424 and the rotating center component, the connection between the adapter 30424 and the motor connector is disconnected. This achieves motor protection.

[0275] When this motor assembly is applied to electronic devices, the electronic device can be a two-in-one product or other possible foldable electronic devices. The electronic device simply needs to include two parts that can rotate relative to a rotating shaft mechanism 3 of any form. For example, the electronic device may include a first housing and a second housing. The motor assembly can be used to drive the two housings relative to a rotating shaft mechanism 3, thereby realizing the electric opening and closing of the electronic device. This simplifies the user's operation steps for opening and closing the electronic device, improving the user experience. Furthermore, in scenarios where the electric opening and closing of the electronic device requires manual intervention, the motor assembly can protect the motor, thereby achieving a safe and reliable automatic opening and closing function for the electronic device and extending its service life.

[0276] In addition, the pivot connector 2014 of the keyboard body 201 mentioned in any of the above embodiments of this application can be connected to the pivot mechanism provided in the above embodiments of this application, or any other possible pivot mechanism can be used, as long as it can drive the pivot connector to move towards or away from the pivot mechanism during the movement of the rotating mechanism.

[0277] The keyboard body 201 provided in this application can be used not only in the keyboard assembly 2 described above, but also in electronic devices such as laptops. These electronic devices may include a display screen in addition to the keyboard body 201, and the display screen and keyboard body 201 can be rotatably connected via a hinge mechanism 3. When the electronic device is unfolded, the keys 2012 can move to a set travel distance in the direction exposed in the key slot to meet the user's input requirements via keystrokes. When the electronic device is closed, the keys 2012 can move into the key slot, thereby reducing the portion of the keys 2012 exposed in the key slot and thus reducing the overall thickness dimension of the keyboard body 201, which facilitates a thinner design of the keyboard body 201, thereby enabling a thinner design of the electronic device in this state.

[0278] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A support component, characterized in that, Includes a rotating shaft mechanism and a support section, wherein: The rotating shaft mechanism includes a rotating assembly, which comprises a first fixing member, a second fixing member, a connecting member, and a connecting rod assembly. The first fixing member and the second fixing member are spaced apart and located on the same side of the connecting member. The end face of the first fixing member facing the second fixing member has a first sliding groove, and the end face of the second fixing member facing the first fixing member has a second sliding groove. The connecting member is rotatably connected to the connecting rod assembly, and the connecting rod assembly can slide along the first sliding groove and the second sliding groove. The support portion includes a first support plate, a second support plate, and a third support plate arranged around the rotating shaft mechanism. One end of the first support plate is fixedly connected to the connecting member. The second support plate is located between the first support plate and the third support plate, and the second support plate is rotatably connected to the first support plate and the third support plate. When the first support plate rotates around the rotating shaft mechanism, the connecting rod assembly slides along the first slide groove and the second slide groove, and the connecting member rotates around the connecting rod assembly. The third support plate slides in a direction toward or away from the rotating shaft mechanism.

2. The support component as described in claim 1, characterized in that, The rotating assembly further includes a main shaft, which passes through the first fixing member, the connecting rod assembly, and the second fixing member. The main shaft is rotatably connected to the first fixing member and the second fixing member. When the main shaft rotates, it drives the connecting rod assembly to slide along the first sliding groove and the second sliding groove.

3. The support component as described in claim 2, characterized in that, The rotating shaft mechanism also includes a cam and an auxiliary support mechanism; in the radial direction along the main shaft, the cam is fixed relative to the main shaft, and the surface of the cam is provided with a cam groove; One end of the auxiliary support mechanism is housed in the cam groove, and the other end is connected to the third support plate; when the main shaft rotates, one end of the auxiliary support mechanism slides along the cam groove to drive the third support plate to slide in a direction toward or away from the rotating shaft mechanism.

4. The support component as described in claim 3, characterized in that, The rotating shaft mechanism includes two rotating components, which are spaced apart, and each rotating component is provided with a cam. The auxiliary support mechanism is located between the two rotating components. The auxiliary support mechanism includes a first support rod and a second support rod, which are arranged crosswise and hinged at their middle portions. One end of the first support rod is housed in one of the cam grooves, and the other end is hinged to the third support plate. One end of the second support rod is housed in another of the cam grooves, and the other end is hinged to the third support plate.

5. The support component as described in any one of claims 1 to 4, characterized in that, The support assembly further includes a keyboard body, and the support portion is rotatably connected to the keyboard body via the pivot mechanism; the keyboard body is provided with a receiving cavity, at least a portion of the third support plate is housed in the receiving cavity, and the third support plate can slide within the receiving cavity.

6. The support component as described in claim 5, characterized in that, The third support plate includes an arc-shaped plate segment and a straight plate segment fixedly connected. The arc-shaped plate segment is located between the second support plate and the straight plate segment. The second support plate is rotatably connected to the arc-shaped plate segment, and the arc-shaped plate segment can cover the rotating shaft mechanism. At least a portion of the straight plate segment is accommodated in the receiving cavity.

7. The support component as described in claim 5, characterized in that, The support assembly further includes a host support component, which is fixedly connected to the connector; the host support component is located on the side of the first support plate facing the keyboard body, and the host support component is fixedly connected to the end of the first support plate facing the connector.

8. The support component as described in any one of claims 2 to 4, characterized in that, The linkage assembly includes a first linkage and a second linkage, the first linkage being located between the connector and the second linkage; the second linkage being located between the first fixing member and the second fixing member, and the main shaft passing through the second linkage; in the radial direction of the main shaft, the main shaft and the second linkage are fixed relative to each other; One end of the first connecting rod is rotatably connected to the connecting member, and the other end is rotatably connected to the second connecting rod; one end of the rotating shaft that rotatably connects the first connecting rod and the second connecting rod is located in the first sliding groove, and the other end is located in the second sliding groove.

9. The support component as described in claim 8, characterized in that, The connector includes a body portion having a first side and a second side disposed opposite to each other. The first side is provided with a first mounting portion, a second mounting portion, and a third mounting portion, with the first mounting portion and the second mounting portion being spaced apart. The body portion includes a first surface and a second surface disposed opposite to each other. The first mounting portion and the second mounting portion extend in a direction away from the second surface. The third mounting portion is located on the second surface and extends from the first side to the second side. The rotating assembly further includes two intermediate connecting rods. One intermediate connecting rod has one end rotatably connected to the first mounting part and the other end rotatably connected to the first fixing member. The other intermediate connecting rod has one end rotatably connected to the second mounting part and the other end rotatably connected to the second fixing member. The end of the first connecting rod facing the connecting member is rotatably connected to the end of the third mounting part away from the first side.

10. The support component as claimed in claim 9, characterized in that, The first support plate is fixedly connected to the first surface of the connector.

11. The support component as described in any one of claims 2 to 4, characterized in that, The rotating assembly further includes a first elastic element, which is disposed on the side of the first fixed member opposite to the second fixed member; the elastic force generated by the first elastic element along the axial direction of the main shaft acts on the first fixed member.

12. The support component as claimed in claim 11, characterized in that, The rotating assembly further includes a first extrusion structure located between the first fixing member and the first elastic member; the first extrusion structure is sleeved on the main shaft, and the first extrusion structure is relatively fixed to the main shaft in the radial direction along the main shaft; when the first extrusion structure rotates with the main shaft, the deformation of the first elastic member changes.

13. The support component as claimed in claim 12, characterized in that, The first elastic member presses the first extrusion structure against the first fixing member; the end face of the first extrusion structure facing the first fixing member is provided with a first groove, and the end face of the first fixing member facing the first extrusion structure is provided with a first protrusion.

14. The support component as claimed in claim 12, characterized in that, The rotating assembly further includes a second extrusion structure, which is located between the first extrusion structure and the first fixing member. The second extrusion structure is sleeved on the main shaft, and the main shaft is rotatably connected to the second extrusion structure. The first elastic member presses the first extrusion structure against the second extrusion structure. The end face of the first extrusion structure facing the first fixing member is provided with a first groove, and the end face of the second extrusion structure facing the first extrusion structure is provided with a first protrusion.

15. The support component as claimed in claim 8, characterized in that, The rotating assembly further includes a second elastic element, which is disposed on the side of the second fixing member opposite to the first fixing member; or, the second connecting rod is provided with a hollowed-out area, and the second elastic element is disposed in the hollowed-out area; The second elastic element is sleeved on the main shaft, with one end of the second elastic element fixedly connected to the main shaft and the other end fixedly connected to the second fixing element; when the main shaft rotates, the second elastic element generates an elastic force in the direction of the axis of the main shaft.

16. The support component as claimed in claim 5, characterized in that, The support part is rotatably connected to the keyboard body through the pivot mechanism; the keyboard body includes a pivot connector, a frame assembly and keys, and the movement of the pivot mechanism drives the pivot connector to move in a direction toward or away from the pivot mechanism. The buttons are arranged in multiple rows side by side, and each row of the buttons includes multiple buttons, which are accommodated in key slots on the keyboard body. The frame assembly includes a first frame, a second frame, and a crossbar. The first frame and the second frame are arranged opposite to each other and are fixedly connected to the pivot connector. Multiple rows of buttons are located between the first frame and the second frame, and each row of buttons is arranged along the direction from the first frame to the second frame. Each row of buttons is provided with a corresponding horizontal bar. The first and second borders move with the rotating shaft connector in a direction toward or away from the rotating shaft mechanism, causing the horizontal bar to move along the arrangement direction of each row of buttons. The buttons move into the button slot or protrude from the button slot as the horizontal bar moves.

17. The support component as claimed in claim 16, characterized in that, The rotating assembly further includes a third link, which is slidably connected to the second fixing member; as the main shaft rotates, the third link slides in a direction close to or away from the keyboard body; the rotating shaft connector is fixedly connected to the third link.

18. The support component as claimed in claim 17, characterized in that, The second fixing member is provided with a slide rail, and the third link can slide along the slide rail; the rotating assembly also includes a fourth link, which is fixedly connected to the second fixing member and confines the third link within the slide rail.

19. An electronic device, characterized in that, It includes a host and a support assembly as described in any one of claims 1 to 18, wherein the host is detachably connected to a first support plate in the support assembly.

20. A protective mechanism for supporting an assembly, the supporting assembly including a pivot mechanism and a support portion, the pivot mechanism including a rotating assembly, the rotating assembly including a first fixing member, a second fixing member, a connecting member, and a linkage assembly; the first fixing member and the second fixing member are spaced apart and located on the same side of the connecting member; a first sliding groove is provided on the end face of the first fixing member facing the second fixing member, and a second sliding groove is provided on the end face of the second fixing member facing the first fixing member; the connecting member is rotatably connected to the linkage assembly, and the linkage assembly is slidable along the first sliding groove and the second sliding groove; The support portion includes a first support plate, a second support plate, and a third support plate arranged around the rotating shaft mechanism. One end of the first support plate is fixedly connected to the connecting member. The second support plate is located between the first support plate and the third support plate, and is rotatably connected to both the first and third support plates. When the first support plate rotates around the rotating shaft mechanism, the connecting rod assembly slides along the first and second sliding grooves, and the connecting member rotates around the connecting rod assembly. The third support plate slides in a direction toward or away from the rotating shaft mechanism. The protection mechanism includes a fixed frame, a first rotating shaft assembly, a second rotating shaft assembly, a first adapter, and a motor connector, wherein: The fixing frame includes a first fixing plate and a second fixing plate, which are arranged opposite to each other to form an installation space between them; The first rotating shaft assembly is located in the installation space. The first rotating shaft assembly includes a first shaft and a first gear component. One end of the first shaft is fixed to the first fixing plate, and the other end is fixed to the second fixing plate. The first gear component is sleeved on the first shaft and can rotate around the first shaft. The second rotating shaft assembly is located in the mounting space. The second rotating shaft assembly includes a second shaft and a second gear component. One end of the second shaft is fixed to the first fixing plate, and the other end extends toward the second fixing plate. The second gear component is sleeved on the second shaft, and the second gear component can rotate around the second shaft. The first adapter is located between the second gear and the second fixed plate, and the first adapter is sleeved on the second shaft; At least a portion of the motor connector is located on the side of the first adapter that is away from the first fixed plate. The motor connector includes a rotation center component, the end of the second shaft facing the second fixed plate is inserted into the rotation center component, and the end of the rotation center component away from the first adapter component passes through the second fixed plate. The rotation center component is used to connect to the motor. When the rotating center component is driven to rotate by the motor, and the torque acting on the first adapter is less than the connection force between the first adapter and the rotating center component, the first adapter is connected to the motor connector, the first adapter rotates with the rotating center component, and the first adapter drives the first gear component to rotate around the first shaft; the torque of the rotation of the first gear component is transmitted to the second rotating shaft assembly. When the torque acting on the second rotating shaft assembly is transmitted to the first adapter through the first gear component, and the torque acting on the first adapter is greater than the connection force between the first adapter and the rotating center component, the connection between the first adapter and the motor connector is disconnected. The second rotating shaft assembly is used to rotate synchronously with the rotating assembly.

21. The protection mechanism as described in claim 20, characterized in that, In the direction along the first fixed plate to the second fixed plate, the first gear component includes a first gear structure and a second gear structure, and the first gear structure and the second gear structure are spaced apart. The second gear component includes a third gear structure that meshes with the first gear structure; the first adapter component includes a fourth gear structure that meshes with the second gear structure. When the first adapter drives the first gear to rotate around the first shaft, the first gear slides along the direction from the first fixed plate to the second fixed plate, so that the third gear structure disengages from the first gear structure.

22. The protection mechanism as described in claim 20 or 21, characterized in that, The first adapter has a receiving cavity, the opening of which faces the motor connector, and the rotating center is inserted into the receiving cavity; The first adapter is further provided with a first elastic element and a rolling element, which are housed in the receiving cavity; one end of the first elastic element abuts against the rotating center element, and the other end presses the rolling element against the bottom wall of the receiving cavity.

23. The protection mechanism as described in claim 22, characterized in that, The bottom wall of the accommodating cavity is provided with a groove; When the rolling element is housed in the groove, the first adapter is connected to the rotating center element, and the first adapter can rotate with the rotating center element. When the rolling element disengages from the groove, the connection between the first adapter and the rotating center element is broken.

24. The protection mechanism as described in claim 20 or 21, characterized in that, The end of the second gear component facing the first fixing plate is also provided with a first stop portion, and the first stop portion is provided with a notch; The second rotating shaft assembly further includes a fixed pin and a sliding pin, the fixed pin and the sliding pin being located on the side of the second gear component facing the first fixed plate; the fixed pin is sleeved on the second shaft and is rotatably connected to the second shaft; the sliding pin is disposed between the fixed pin and the first stop portion, the end of the sliding pin facing the fixed pin is slidably connected to the fixed pin, and the end of the sliding pin away from the fixed pin is provided with a second stop portion; the second stop portion can be inserted into the notch.

25. The protection mechanism as described in claim 24, characterized in that, The first gear component is also provided with a guide groove structure, which is located between the first gear structure and the first fixing plate, and the guide groove structure is provided with a guide groove; The fixing pin is provided with a guide structure, which is inserted into the guide groove; the fixing pin rotates to drive the guide structure to slide in the guide groove, thereby driving the first gear to slide along the axial direction of the first shaft; the sliding pin slides with the first gear, and the sliding direction of the sliding pin is opposite to that of the first gear.

26. The protection mechanism as described in claim 20 or 21, characterized in that, The first rotating shaft assembly further includes an assist mechanism, one end of which is fixedly connected to the first gear component and the other end of which is fixedly connected to the first shaft; the assist mechanism is used to provide assistance for the sliding of the first gear component along the first shaft.

27. A motor assembly, characterized in that, Includes an electric motor and a protection mechanism as described in any one of claims 20 to 26.

28. An electronic device, characterized in that, It includes a first housing, a second housing, a rotating assembly, and a motor assembly as described in claim 27, wherein: the first housing and the second housing are located on both sides of the rotating assembly, and the rotation of the motor can drive the first housing and the second housing to rotate relative to the rotating assembly.

29. The electronic device as claimed in claim 28, characterized in that, The rotating assembly is located on the side of the first fixed plate opposite to the second fixed plate; and the rotating assembly rotates synchronously with the second rotating shaft assembly.

30. The electronic device as claimed in claim 29, characterized in that, The electronic device further includes a second adapter, which is located between the first fixed plate and the rotating assembly. The rotating assembly is connected to the second rotating shaft assembly via the second adapter.

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