Foldable electronic device and housing arrangement

Abstract

The application discloses a foldable electronic device and a shell device. The electronic device provided by the application has a three-fold structure and comprises a connecting piece. When a first shell and a second shell are in an open state and the second shell and a third shell are in an open state, a second end of the connecting piece is connected between the second shell and a second moving piece of a second rotating shaft assembly, so as to prevent the second shell and the third shell from being folded relative to the second rotating shaft assembly. In the process that the second shell and the third shell are in the open state and the first shell and the second shell are folded relative to each other from the open state to a first closed state, the second end of the connecting piece moves in a direction away from the second rotating shaft assembly, so that the second shell and the third shell can be folded relative to the second rotating shaft assembly. The electronic device is provided with the connecting device, so that the electronic device needs to be folded in a certain order, the movement of the folding assembly is smooth, and the service life of the electronic device is prolonged.

Description

Technical Field

[0001] This application relates to the field of electronic product technology, and more particularly to a foldable electronic device and its housing. Background Technology

[0002] Most existing foldable electronic devices adopt a two-fold structure. However, due to the limitations of their structure and size, existing two-fold electronic devices cannot meet the increasingly diverse needs of users, such as increasing the display area. As a result, electronic devices with three-fold or higher structures have emerged.

[0003] Furthermore, the movement mechanisms of electronic devices with three-fold or multi-fold structures are complex, and the folding methods are diverse. Using an inappropriate folding sequence can damage the movement mechanisms of these devices, affecting their lifespan. Summary of the Invention

[0004] This application provides a foldable electronic device and its housing. The electronic device provided by this application has a three-fold structure, thereby meeting the diverse needs of users. Furthermore, by incorporating a connecting device, the electronic device is required to fold in a specific sequence to ensure smooth movement of the folding components, thereby reducing the risk of damage to the folding components, increasing reliability, and extending the service life of the electronic device.

[0005] In one aspect, this application provides a foldable electronic device.

[0006] The electronic device includes a first housing, a second housing, a third housing, a first pivot assembly, and a second pivot assembly. The first pivot assembly connects the first housing and the second housing, allowing the first and second housings to be unfolded or folded relative to each other. The second pivot assembly connects the second housing and the third housing, allowing the second and third housings to be unfolded or folded relative to each other. The electronic device also includes a connector, which has a first end and a second end. The first end of the connector is located near the first pivot assembly, and the second end of the connector is located near the second pivot assembly.

[0007] Specifically, when the first housing and the second housing are in the open state, and the second housing and the third housing are in the open state, the second end of the connector is connected between the second housing and the second pivot assembly, preventing the second housing and the third housing from folding relative to the second pivot assembly; during the process of the first housing and the second housing folding relative to each other from the open state to the first closed state through the first pivot assembly while the second housing and the third housing are in the open state, the second end of the connector moves away from the second pivot assembly; when the first housing and the second housing are in the first closed state, the second housing and the third housing can fold relative to the second pivot assembly.

[0008] The electronic device provided in this application can be folded in a certain order, moves smoothly, and has a long service life.

[0009] In some implementations, the connector is slidably connected to the second housing.

[0010] In this implementation, the second housing may be provided with a sliding groove, which extends to the left and right end faces of the second housing. The connector is located in the sliding groove of the second housing and can slide along the sliding groove, thereby sliding relative to the second housing through the sliding groove. The second housing may also be provided with a through hole, the two ends of which may be located on the left and right end faces of the second housing, respectively. The connector is located in the through hole of the second housing and can slide along the through hole, thereby slidably connecting to the second housing through the through hole. Furthermore, the connector may also be slidably connected to the second housing through other structures, which are not limited in this application.

[0011] In some implementations, when the first housing and the second housing are in a first closed state, the second housing and the third housing can be unfolded relative to the second pivot assembly; when the second housing and the third housing are in an open state, during the process of the first housing and the second housing unfolding from the first closed state to the open state through the first pivot assembly, the second end of the connector moves toward the second pivot assembly, so that the second end of the connector is connected between the second housing and the second pivot assembly.

[0012] In this implementation, the electronic device can also unfold in a certain order, move smoothly, and have a long service life.

[0013] In some implementations, the first rotating shaft assembly includes a first moving member. During the process of the first and second housings folding relative to each other from the open state to a first closed state via the first rotating shaft assembly while the second and third housings are in the open state, the first moving member of the first rotating shaft assembly moves away from the second housing, forming a clearance space between the first moving member and the second housing; the first end of the connector enters the clearance space, and the second end of the connector moves away from the second rotating shaft assembly.

[0014] In this implementation, a clearance space is formed between the first moving member and the second housing. The first end of the connector enters the clearance space, and the second end of the connector moves away from the second pivot assembly, so that the second housing and the third housing can be folded relative to the second pivot assembly.

[0015] In some implementations, the first rotating shaft assembly includes a main shaft, a first swing arm, and a second swing arm. The second swing arm includes a rotating end and a sliding end. The rotating end of the second swing arm is rotatably connected to the main shaft of the first rotating shaft assembly, and the sliding end of the second swing arm is slidably connected to the second housing. The first moving component includes the second swing arm. When the first housing and the second housing are in an open state, the first end of the connecting component approaches the sliding end of the second swing arm of the first rotating shaft assembly. When the second housing and the third housing are in an open state, and the first housing and the second housing are folded relative to each other from the open state to a first closed state via the first rotating shaft assembly, the first swing arm and the second swing arm of the first rotating shaft assembly fold relative to each other, and the sliding end of the second swing arm of the first rotating shaft assembly moves away from the second housing, forming a clearance space between the sliding end of the second swing arm and the second housing.

[0016] In this implementation, the first end of the connector enters the clearance space, and the second end of the connector moves away from the second pivot assembly, so that the second housing and the third housing can be folded relative to the second pivot assembly.

[0017] In some implementations, the second rotating shaft assembly includes a main shaft, a first fixed frame, and a second fixed frame; the first fixed frame and the second housing are fixedly connected; the second fixed frame and the third housing are fixedly connected. When the first housing and the second housing are in the open state, and the second housing and the third housing are in the open state, the first fixed frame and the second fixed frame of the second rotating shaft assembly are relatively unfolded, and the main shaft of the first fixed frame and the second rotating shaft assembly are fixedly connected through the second end of the connector; during the process of the second housing and the third housing being in the open state and the first housing and the second housing being folded relative to each other from the open state to the first closed state, the second end of the connector moves away from the main shaft of the second rotating shaft assembly; when the first housing and the second housing are in the first closed state, the first fixed frame and the main shaft of the second rotating shaft assembly can move relative to each other.

[0018] In this implementation, the second end of the connector moves away from the main axis of the second rotating shaft assembly, so that the first end of the connector enters the clearance space, and the second end of the connector moves away from the main axis of the second rotating shaft assembly, so that the second housing and the third housing can be folded relative to the second rotating shaft assembly.

[0019] In some implementations, the first fixing bracket of the second rotating shaft assembly has a through hole, and the main shaft of the second rotating shaft assembly has a groove, the opening of which faces the through hole of the first fixing bracket. When the first housing and the second housing are in the open state, and the second housing and the third housing are in the open state, the second end of the connector passes through the through hole through the first fixing bracket of the second rotating shaft assembly and is inserted into the groove to fix the first fixing bracket and the main shaft of the second rotating shaft assembly. During the process of the second housing and the third housing being in the open state and the first housing and the second housing being folded relative to each other from the open state to the first closed state, the second end of the connector moves away from the groove. When the first housing and the second housing are in the first closed state, the second end of the connector leaves the groove, and the first fixing bracket and the main shaft of the second rotating shaft assembly can move relative to each other.

[0020] In this implementation, the second end of the connector leaves the groove, and the main shafts of the first fixing frame and the second rotating shaft assembly can move relative to each other, so that the second housing and the third housing can be folded relative to the second rotating shaft assembly.

[0021] In some implementations, the electronic device further includes a drive element, and at least one of the connector, first pivot assembly, second pivot assembly, or second housing is provided with a drive element. During the process of the second housing and third housing being in an open state, and the first housing and second housing being folded relative to each other from the open state to a first closed state via the first pivot assembly, the drive element is used to drive the second end of the connector to move away from the second pivot assembly.

[0022] In this implementation, the driving member is used to drive the second end of the connector to move away from the second pivot assembly, thereby enabling the second housing and the third housing to fold relative to the second pivot assembly.

[0023] In some implementations, the driving component is an elastic component, which is located at the second end of the connector. One end of the driving component abuts against the connector, and the other end of the driving component abuts against the second rotating shaft assembly.

[0024] In this implementation, when the second housing and the third housing are in the open state, and the first housing and the second housing are in the open state, the two ends of the drive member abut against the limiting flange of the connector and the first fixing frame of the second rotating shaft assembly, respectively. The drive member is in a compressed state, and the second end of the connector passes through the first fixing frame of the second rotating shaft assembly and is inserted into the main shaft to prevent the second housing and the third housing from folding relative to the second rotating shaft assembly.

[0025] When the second and third housings are in the open state, and the first and second housings are folded relative to each other from the open state to the first closed state via the first pivot assembly, the drive member changes from the compressed state to the extended state, generating thrust. Under the action of the thrust, the limiting flange moves towards the first pivot assembly, thereby causing the connecting member to move away from the second pivot assembly under the action of the thrust and away from the main shaft. This allows the main shafts of the first fixing frame and the second pivot assembly to move relative to each other, so that the second and third housings can fold relative to the second pivot assembly.

[0026] In some implementations, the driving component includes a first magnetic component and a second magnetic component. The first magnetic component and the second magnetic component are respectively fixed to the sliding end of the second swing arm of the first rotating shaft assembly and the first end of the connecting component. There is an attractive force between the first magnetic component and the second magnetic component. Under the action of the attractive force, the first end of the connecting component moves with the sliding end of the second swing arm of the first rotating shaft assembly.

[0027] In this implementation, the first end of the connector is magnetically connected to the sliding end of the second swing arm of the first rotating shaft assembly via a driving member. When the second and third housings are in the open state, and the first and second housings are folded relative to each other from the open state to the first closed state via the first rotating shaft assembly, the sliding end of the second swing arm moves away from the second fixed frame. The driving member then drives the connector to move away from the second rotating shaft assembly, causing the second end of the connector to leave the main shaft. This allows the main shafts of the first fixed frame and the second rotating shaft assembly to move relative to each other, enabling the second and third housings to fold relative to the second rotating shaft assembly.

[0028] In some implementations, the driving component includes a third magnetic component and a fourth magnetic component. The third magnetic component is fixed to the second housing and movably sleeved on the connecting component. The fourth magnetic component is fixedly sleeved on the connecting component and located on the side of the third magnetic component closer to the second rotating shaft assembly. There is an attractive force between the third and fourth magnetic components. When the first housing and the second housing are in the open state, and the second housing and the third housing are in the open state, there is a gap between the third and fourth magnetic components. During the process of the first housing and the second housing folding relative to each other from the open state to the first closed state through the first rotating shaft assembly, the fourth magnetic component moves towards the third magnetic component under the action of the attractive force, causing the second end of the connecting component to move away from the second rotating shaft assembly.

[0029] In this implementation, the fourth magnetic component moves toward the third magnetic component under the action of attraction, causing the second end of the connector to move away from the second rotating shaft assembly, so that the second end of the connector leaves the main shaft, and the main shafts of the first fixing frame and the second rotating shaft assembly can move relative to each other, so that the second housing and the third housing can be folded relative to the second rotating shaft assembly.

[0030] In some implementations, the driving component includes a third magnetic component and a fourth magnetic component. The third magnetic component is fixed to the second housing and movably sleeved on the connecting component. The fourth magnetic component is fixedly sleeved on the connecting component and located on the side of the third magnetic component away from the second rotating shaft assembly. There is a repulsive force between the third and fourth magnetic components. When the first housing and the second housing are in the open state, and the second housing and the third housing are in the open state, the third magnetic component and the fourth magnetic component are in contact or have a gap between them. During the process of the first housing and the second housing folding relative to each other from the open state to the first closed state through the first rotating shaft assembly, the fourth magnetic component moves away from the third magnetic component under the action of the repulsive force, causing the second end of the connecting component to move away from the second rotating shaft assembly.

[0031] In this implementation, the fourth magnetic component moves away from the third magnetic component under the action of repulsion, causing the second end of the connector to move away from the second rotating shaft assembly, so that the second end of the connector leaves the main shaft, and the main shafts of the first fixing frame and the second rotating shaft assembly can move relative to each other, so that the second housing and the third housing can be folded relative to the second rotating shaft assembly.

[0032] In some implementations, the driving component includes a first rotating end and a second rotating end. The first rotating end of the driving component is rotatably connected to the sliding end of the second swing arm of the first rotating shaft assembly, and the second rotating end of the driving component is rotatably connected to the first end of the connecting component.

[0033] In this implementation, when the second and third housings are in the open state, and the first and second housings are folded relative to each other from the open state to the first closed state via the first rotating shaft assembly, the second swing arm pulls the connecting piece away from the second rotating shaft assembly via the drive member, and the second end of the connecting piece leaves the main shaft. The main shafts of the first fixing frame and the second rotating shaft assembly can move relative to each other, so that the second and third housings can be folded relative to the second rotating shaft assembly.

[0034] In some implementations, the electronic device also includes a screen, with a first housing, a second housing, a third housing, a first hinge assembly, and a second hinge assembly collectively supporting the screen.

[0035] In this implementation, the screen moves with the housing device, which can unfold or fold the screen to allow the electronic device to be unfolded into an open state or folded into a first closed state or a second closed state. When the electronic device is in the open state, the screen is flat and can display in full screen, giving the electronic device a larger display area to improve the user's viewing and operating experience. When the electronic device is in the first or second closed state, its planar dimensions are smaller, making it easier for users to carry and store; at this time, users can also view and operate on the exposed screen to meet different application scenarios.

[0036] Secondly, this application also provides a housing device for use in foldable electronic devices.

[0037] The housing assembly includes a first housing, a second housing, a third housing, a first pivot assembly, and a second pivot assembly. The first pivot assembly connects the first housing and the second housing, and the first housing and the second housing can be relatively unfolded or folded relative to each other via the pivot assembly. The second pivot assembly connects the second housing and the third housing, and the second housing and the third housing can be relatively unfolded or folded relative to each other via the second pivot assembly.

[0038] The housing device further includes a connector, which has a first end and a second end. The first end of the connector is close to the first rotating shaft assembly, and the second end of the connector is close to the second rotating shaft assembly. When the first housing and the second housing are in an open state, and the second housing and the third housing are in an open state, the second end of the connector connects between the second housing and the second rotating shaft assembly, preventing the second housing and the third housing from folding relative to the second rotating shaft assembly. During the process of the first housing and the third housing being in an open state and the first housing and the second housing folding relative to each other through the first rotating shaft assembly to a first closed state, the second end of the connector moves away from the second rotating shaft assembly. When the first housing and the second housing are in the first closed state, the second housing and the third housing can fold relative to the second rotating shaft assembly.

[0039] The housing device provided in this application can be folded in a certain order, moves smoothly, and has a long service life.

[0040] In some implementations, the connector is slidably connected to the second housing.

[0041] In this implementation, the second housing may be provided with a sliding groove, which extends to the left and right end faces of the second housing. The connector is located in the sliding groove of the second housing and can slide along the sliding groove, thereby sliding relative to the second housing through the sliding groove. The second housing may also be provided with a through hole, the two ends of which may be located on the left and right end faces of the second housing, respectively. The connector is located in the through hole of the second housing and can slide along the through hole, thereby slidably connecting to the second housing through the through hole. Furthermore, the connector may also be slidably connected to the second housing through other structures, which are not limited in this application.

[0042] In some implementations, when the first housing and the second housing are in a first closed state, the second housing and the third housing can be unfolded relative to the second pivot assembly; when the second housing and the third housing are in an open state, during the process of the first housing and the second housing unfolding from the first closed state to the open state through the first pivot assembly, the second end of the connector moves toward the second pivot assembly, so that the second end of the connector is connected between the second housing and the second pivot assembly.

[0043] In this implementation, the electronic device can also unfold in a certain order, move smoothly, and have a long service life.

[0044] In some implementations, the first rotating shaft assembly includes a first moving member. During the process of the first and second housings folding relative to each other from the open state to a first closed state via the first rotating shaft assembly while the second and third housings are in the open state, the first moving member of the first rotating shaft assembly moves away from the second housing, forming a clearance space between the first moving member and the second housing; the first end of the connector enters the clearance space, and the second end of the connector moves away from the second rotating shaft assembly.

[0045] In this implementation, a clearance space is formed between the first moving member and the second housing. The first end of the connector enters the clearance space, and the second end of the connector moves away from the second pivot assembly, so that the second housing and the third housing can be folded relative to the second pivot assembly.

[0046] In some implementations, the first rotating shaft assembly includes a main shaft, a first swing arm, and a second swing arm. The second swing arm includes a rotating end and a sliding end. The rotating end of the second swing arm is rotatably connected to the main shaft of the first rotating shaft assembly, and the sliding end of the second swing arm is slidably connected to the second housing. The first moving component includes the second swing arm. When the first housing and the second housing are in an open state, the first end of the connecting component approaches the sliding end of the second swing arm of the first rotating shaft assembly. When the second housing and the third housing are in an open state, and the first housing and the second housing are folded relative to each other from the open state to a first closed state via the first rotating shaft assembly, the first swing arm and the second swing arm of the first rotating shaft assembly fold relative to each other, and the sliding end of the second swing arm of the first rotating shaft assembly moves away from the second housing, forming a clearance space between the sliding end of the second swing arm and the second housing.

[0047] In this implementation, the first end of the connector enters the clearance space, and the second end of the connector moves away from the second pivot assembly, so that the second housing and the third housing can be folded relative to the second pivot assembly.

[0048] In some implementations, the second rotating shaft assembly includes a main shaft, a first fixed frame, and a second fixed frame; the first fixed frame and the second housing are fixedly connected; the second fixed frame and the third housing are fixedly connected. When the first housing and the second housing are in the open state, and the second housing and the third housing are in the open state, the first fixed frame and the second fixed frame of the second rotating shaft assembly are relatively unfolded, and the main shaft of the first fixed frame and the second rotating shaft assembly are fixedly connected through the second end of the connector; during the process of the second housing and the third housing being in the open state and the first housing and the second housing being folded relative to each other from the open state to the first closed state, the second end of the connector moves away from the main shaft of the second rotating shaft assembly; when the first housing and the second housing are in the first closed state, the first fixed frame and the main shaft of the second rotating shaft assembly can move relative to each other.

[0049] In this implementation, the second end of the connector moves away from the main axis of the second rotating shaft assembly, so that the first end of the connector enters the clearance space, and the second end of the connector moves away from the main axis of the second rotating shaft assembly, so that the second housing and the third housing can be folded relative to the second rotating shaft assembly.

[0050] In some implementations, the first fixing bracket of the second rotating shaft assembly has a through hole, and the main shaft of the second rotating shaft assembly has a groove, the opening of which faces the through hole of the first fixing bracket. When the first housing and the second housing are in the open state, and the second housing and the third housing are in the open state, the second end of the connector passes through the through hole through the first fixing bracket of the second rotating shaft assembly and is inserted into the groove to fix the first fixing bracket and the main shaft of the second rotating shaft assembly. During the process of the second housing and the third housing being in the open state and the first housing and the second housing being folded relative to each other from the open state to the first closed state, the second end of the connector moves away from the groove. When the first housing and the second housing are in the first closed state, the second end of the connector leaves the groove, and the first fixing bracket and the main shaft of the second rotating shaft assembly can move relative to each other.

[0051] In this implementation, the second end of the connector leaves the groove, and the main shafts of the first fixing frame and the second rotating shaft assembly can move relative to each other, so that the second housing and the third housing can be folded relative to the second rotating shaft assembly.

[0052] In some implementations, the housing device further includes a drive element, and at least one of the connector, first pivot assembly, second pivot assembly, or second housing is provided with a drive element. During the process of the second and third housings being in the open state, and the first and second housings being folded relative to each other from the open state to a first closed state via the first pivot assembly, the drive element is used to drive the second end of the connector to move away from the second pivot assembly.

[0053] In this implementation, the driving member is used to drive the second end of the connector to move away from the second pivot assembly, thereby enabling the second housing and the third housing to fold relative to the second pivot assembly.

[0054] In some implementations, the driving component is an elastic component, which is located at the second end of the connector. One end of the driving component abuts against the connector, and the other end of the driving component abuts against the second rotating shaft assembly.

[0055] In this implementation, when the second housing and the third housing are in the open state, and the first housing and the second housing are in the open state, the two ends of the drive member abut against the limiting flange of the connector and the first fixing frame of the second rotating shaft assembly, respectively. The drive member is in a compressed state, and the second end of the connector passes through the first fixing frame of the second rotating shaft assembly and is inserted into the main shaft to prevent the second housing and the third housing from folding relative to the second rotating shaft assembly.

[0056] When the second and third housings are in the open state, and the first and second housings are folded relative to each other from the open state to the first closed state via the first pivot assembly, the drive member changes from the compressed state to the extended state, generating thrust. Under the action of the thrust, the limiting flange moves towards the first pivot assembly, thereby causing the connecting member to move away from the second pivot assembly under the action of the thrust and away from the main shaft. This allows the main shafts of the first fixing frame and the second pivot assembly to move relative to each other, so that the second and third housings can fold relative to the second pivot assembly.

[0057] In some implementations, the driving component includes a first magnetic component and a second magnetic component. The first magnetic component and the second magnetic component are respectively fixed to the sliding end of the second swing arm of the first rotating shaft assembly and the first end of the connecting component. There is an attractive force between the first magnetic component and the second magnetic component. Under the action of the attractive force, the first end of the connecting component moves with the sliding end of the second swing arm of the first rotating shaft assembly.

[0058] In this implementation, the first end of the connector is magnetically connected to the sliding end of the second swing arm of the first rotating shaft assembly via a driving member. When the second and third housings are in the open state, and the first and second housings are folded relative to each other from the open state to the first closed state via the first rotating shaft assembly, the sliding end of the second swing arm moves away from the second fixed frame. The driving member then drives the connector to move away from the second rotating shaft assembly, causing the second end of the connector to leave the main shaft. This allows the main shafts of the first fixed frame and the second rotating shaft assembly to move relative to each other, enabling the second and third housings to fold relative to the second rotating shaft assembly.

[0059] In some implementations, the driving component includes a third magnetic component and a fourth magnetic component. The third magnetic component is fixed to the second housing and movably sleeved on the connecting component. The fourth magnetic component is fixedly sleeved on the connecting component and located on the side of the third magnetic component closer to the second rotating shaft assembly. There is an attractive force between the third and fourth magnetic components. When the first housing and the second housing are in the open state, and the second housing and the third housing are in the open state, there is a gap between the third and fourth magnetic components. During the process of the first housing and the second housing folding relative to each other from the open state to the first closed state through the first rotating shaft assembly, the fourth magnetic component moves towards the third magnetic component under the action of the attractive force, causing the second end of the connecting component to move away from the second rotating shaft assembly.

[0060] In this implementation, the fourth magnetic component moves toward the third magnetic component under the action of attraction, causing the second end of the connector to move away from the second rotating shaft assembly, so that the second end of the connector leaves the main shaft, and the main shafts of the first fixing frame and the second rotating shaft assembly can move relative to each other, so that the second housing and the third housing can be folded relative to the second rotating shaft assembly.

[0061] In some implementations, the driving component includes a third magnetic component and a fourth magnetic component. The third magnetic component is fixed to the second housing and movably sleeved on the connecting component. The fourth magnetic component is fixedly sleeved on the connecting component and located on the side of the third magnetic component away from the second rotating shaft assembly. There is a repulsive force between the third and fourth magnetic components. When the first housing and the second housing are in the open state, and the second housing and the third housing are in the open state, the third magnetic component and the fourth magnetic component are in contact or have a gap between them. During the process of the first housing and the second housing folding relative to each other from the open state to the first closed state through the first rotating shaft assembly, the fourth magnetic component moves away from the third magnetic component under the action of the repulsive force, causing the second end of the connecting component to move away from the second rotating shaft assembly.

[0062] In this implementation, the fourth magnetic component moves away from the third magnetic component under the action of repulsion, causing the second end of the connector to move away from the second rotating shaft assembly, so that the second end of the connector leaves the main shaft, and the main shafts of the first fixing frame and the second rotating shaft assembly can move relative to each other, so that the second housing and the third housing can be folded relative to the second rotating shaft assembly.

[0063] In some implementations, the driving component includes a first rotating end and a second rotating end. The first rotating end of the driving component is rotatably connected to the sliding end of the second swing arm of the first rotating shaft assembly, and the second rotating end of the driving component is rotatably connected to the first end of the connecting component.

[0064] In this implementation, when the second and third housings are in the open state, and the first and second housings are folded relative to each other from the open state to the first closed state via the first rotating shaft assembly, the second swing arm pulls the connecting piece away from the second rotating shaft assembly via the drive member, and the second end of the connecting piece leaves the main shaft. The main shafts of the first fixing frame and the second rotating shaft assembly can move relative to each other, so that the second and third housings can be folded relative to the second rotating shaft assembly. Attached Figure Description

[0065] Figure 1A This is a schematic diagram of the structure of an electronic device in the open state according to an embodiment of this application;

[0066] Figure 1B yes Figure 1A A schematic diagram of the electronic device in its first closed state;

[0067] Figure 1C yes Figure 1A A schematic diagram of the electronic device in its second closed state;

[0068] Figure 2 yes Figure 1A A partially exploded structural diagram of the electronic device shown.

[0069] Figure 3A yes Figure 1A A schematic diagram of the housing assembly shown from another angle;

[0070] Figure 3B yes Figure 1B A schematic diagram of the housing assembly shown from another angle;

[0071] Figure 3C yes Figure 1C A schematic diagram of the housing assembly shown from another angle;

[0072] Figure 4 yes Figure 2 The diagram shows the structure of the first rotating shaft assembly.

[0073] Figure 5 yes Figure 4 The diagram shows the structure of the first rotating shaft assembly in the first closed state.

[0074] Figure 6 yes Figure 4 A partially exploded structural diagram of the first rotating shaft assembly shown.

[0075] Figure 7A yes Figure 6 A schematic diagram of the exploded structure of the main shaft shown.

[0076] Figure 7B yes Figure 7A A schematic diagram of the main shaft at another angle;

[0077] Figure 8 yes Figure 6 The diagram shows the structural structure of the connecting components.

[0078] Figure 9 yes Figure 8 A partial exploded view of the connecting components shown.

[0079] Figure 10A yes Figure 9 The diagram shows the structure of the first fixing frame.

[0080] Figure 10B yes Figure 9 The diagram shows the structure of the second fixing frame at another angle;

[0081] Figure 11A yes Figure 9 The diagram shows the structure of the first connecting arm.

[0082] Figure 11B yes Figure 9 The diagram shows the structure of the second connecting arm.

[0083] Figure 12A yes Figure 9 The diagram shows the structure of the first swing arm.

[0084] Figure 12B yes Figure 9 The diagram shows the structure of the second swing arm at another angle;

[0085] Figure 13 yes Figure 9 The diagram shows the structure of the damping component at another angle;

[0086] Figure 14 yes Figure 13 The diagram shows an exploded view of the damping component.

[0087] Figure 15 yes Figure 8 A partial structural diagram of the connecting component is shown;

[0088] Figure 16 yes Figure 8 The connection components shown are Figure 7A A schematic diagram of the assembly structure of the bottom cover and back cover of the spindle shown.

[0089] Figure 17A yes Figure 6 The diagram shows a cross-sectional view of the assembly structure of the connecting component and the spindle, cut along line A1-A1.

[0090] Figure 17B yes Figure 17A The diagram shows the structure in its first closed state.

[0091] Figure 18A yes Figure 6 The diagram shows a cross-sectional view of the assembly structure of the connecting component and the spindle, cut along line A2-A2.

[0092] Figure 18B yes Figure 18A The diagram shows the structure in its first closed state.

[0093] Figure 19A yes Figure 6 The diagram shows a cross-sectional view of the assembly structure of the connecting component and the spindle, cut along line A3-A3.

[0094] Figure 19B yes Figure 19A The diagram shows the structure in its first closed state.

[0095] Figure 20 yes Figure 8 The diagram shows the structure of the connecting components and spindle in the first closed state.

[0096] Figure 21A yes Figure 6 The diagram shows the structure of the first support member from another angle;

[0097] Figure 21B yes Figure 6 The diagram shows the structure of the second support member at another angle;

[0098] Figure 22 yes Figure 4 The exploded structure of the first rotating shaft assembly shown is a schematic diagram of its structure from another angle.

[0099] Figure 23A yes Figure 4 The diagram shows a cross-sectional view of the first rotating shaft assembly cut along line A4-A4.

[0100] Figure 23B yes Figure 23A The diagram shows the structure in its first closed state.

[0101] Figure 24A yes Figure 4 A schematic diagram of the cross-sectional structure of the first rotating shaft assembly cut along line A5-A5;

[0102] Figure 24B yes Figure 24A The diagram shows the structure in its first closed state.

[0103] Figure 25A yes Figure 4 The diagram shows a cross-sectional view of the first rotating shaft assembly cut along line A6-A6.

[0104] Figure 25B yes Figure 25A The diagram shows the structure in its first closed state.

[0105] Figure 26 yes Figure 2 The diagram shows the structure of the second rotating shaft assembly in the open state.

[0106] Figure 27 yes Figure 26 The diagram shows the structure of the second rotating shaft assembly in the second closed state.

[0107] Figure 28A yes Figure 26 The exploded structural diagram of the second rotating shaft assembly is shown.

[0108] Figure 28B yes Figure 28A A schematic diagram of the structure shown from another angle;

[0109] Figure 29 yes Figure 28A A schematic diagram of the assembly structure of the connecting component and the bottom cover of the spindle;

[0110] Figure 30A yes Figure 26 The diagram shows a cross-sectional view of the assembly structure of the connecting component and the spindle, cut along line B1-B1.

[0111] Figure 30B yes Figure 30A The diagram shows the structure in the second closed state.

[0112] Figure 31A yes Figure 26 The diagram shows a cross-sectional view of the assembly structure of the connecting component and the spindle, cut along line B2-B2.

[0113] Figure 31B yes Figure 31A The diagram shows the structure in the second closed state.

[0114] Figure 32A yes Figure 26 The diagram shows a cross-sectional view of the assembly structure of the connecting component and the spindle, cut along line B3-B3.

[0115] Figure 32B yes Figure 32A The diagram shows the structure in the second closed state.

[0116] Figure 33A yes Figure 2A partially exploded structural diagram of a portion of the electronic device shown.

[0117] Figure 33B yes Figure 33A A partial decomposition diagram;

[0118] Figure 33C yes Figure 33A An assembly diagram of the structure shown;

[0119] Figure 33D yes Figure 33C An internal schematic diagram of the structure shown;

[0120] Figure 34A yes Figure 33C A schematic diagram of the structure in its first closed state;

[0121] Figure 34B yes Figure 34A An internal schematic diagram of the structure shown;

[0122] Figure 35A yes Figure 33C A schematic diagram of the structure in the second closed state;

[0123] Figure 35B yes Figure 35A An internal schematic diagram of the structure shown;

[0124] Figure 36A yes Figure 33B A partial structural schematic diagram of the housing device shown in the figure;

[0125] Figure 36B yes Figure 36A A schematic diagram of the structure shown when part of the structure is in the first closed state;

[0126] Figure 36C yes Figure 36A The diagram shows the structure in its first closed state.

[0127] Figure 36D yes Figure 33B A schematic diagram of the structure of the housing device shown in the diagram when part of the structure is in the first closed state;

[0128] Figure 36E yes Figure 36D A partially exploded diagram of the structure shown.

[0129] Figure 36F yes Figure 33B A partial structural schematic diagram of the housing device shown in the figure;

[0130] Figure 36G yes Figure 33B A partial structural schematic diagram of the housing device shown in the figure;

[0131] Figure 36H yes Figure 36G A partially exploded diagram of the structure shown.

[0132] Figure 36I yes Figure 2 The diagram shows a structural schematic of the housing device in some embodiments;

[0133] Figure 36J yes Figure 36I The diagram shows a partial cross-sectional structure cut along CC in the first embodiment.

[0134] Figure 36K yes Figure 36I A schematic diagram of another section of the structure shown, cut along CC, in the first embodiment.

[0135] Figure 36L yes Figure 36J The diagram shows the structure in its first closed state.

[0136] Figure 36M yes Figure 36K The diagram shows the structure in its first closed state.

[0137] Figure 37 yes Figure 33A The diagram shows an exploded view of the connecting device in the first embodiment.

[0138] Figure 38 yes Figure 2 The diagram shows a structural schematic of the housing device in the first embodiment.

[0139] Figure 39A yes Figure 38 The diagram shows a partial cross-sectional structure cut along C1-C1 in the first embodiment.

[0140] Figure 39B yes Figure 38 A schematic diagram of another section of the structure shown, cut along C1-C1, in the first embodiment;

[0141] Figure 39C yes Figure 39A The diagram shows the structure in its first closed state.

[0142] Figure 39D yes Figure 39B The diagram shows the structure in its first closed state.

[0143] Figure 40 yes Figure 39C A schematic diagram of the structure in some other embodiments;

[0144] Figure 41 yes Figure 33A The diagram shows the structural schematic of the connecting device in the second embodiment.

[0145] Figure 42A yes Figure 2 The diagram shows a structural schematic of the housing device in the second embodiment.

[0146] Figure 42B yes Figure 42A A partial structural schematic diagram of the housing device shown;

[0147] Figure 42C yes Figure 42B The diagram shows the structure when the part shown is in the first closed state.

[0148] Figure 43A yes Figure 42A The diagram shows a partial cross-sectional structure cut along C2-C2 in the second embodiment.

[0149] Figure 43B yes Figure 42A A schematic diagram of another section of the structure shown, cut along C2-C2, in the second embodiment;

[0150] Figure 43C yes Figure 43A The diagram shows the structure in its first closed state.

[0151] Figure 43D yes Figure 43B The diagram shows the structure in its first closed state.

[0152] Figure 44 yes Figure 33A The diagram shown is an exploded view of the connecting device in the third embodiment.

[0153] Figure 45 yes Figure 2 The diagram shows the structure of the housing device in the third embodiment;

[0154] Figure 46A yes Figure 45 A schematic diagram of the partial cross-sectional structure cut along C3-C3 in the third embodiment;

[0155] Figure 46B yes Figure 45 A schematic diagram of another section of the structure shown, cut along C3-C3, in the third embodiment;

[0156] Figure 46C yes Figure 46A The diagram shows the structure in its first closed state.

[0157] Figure 46D yes Figure 46B The diagram shows the structure in its first closed state.

[0158] Figure 47A yes Figure 33A The diagram shows the assembly structure of the connecting device and the second swing arm in the fourth embodiment;

[0159] Figure 47B yes Figure 47A An exploded view of the structure shown;

[0160] Figure 48 yes Figure 2 The diagram shows the structural design of the housing device in the fourth embodiment;

[0161] Figure 49A yes Figure 48 A schematic diagram of the partial cross-sectional structure cut along C4-C4 in the fourth embodiment;

[0162] Figure 49B yes Figure 48 A schematic diagram of another section of the structure shown, cut along C4-C4, in the fourth embodiment;

[0163] Figure 49C yes Figure 49A The diagram shows the structure in its first closed state.

[0164] Figure 49D yes Figure 49B The diagram shows the structure in its first closed state. Detailed Implementation

[0165] The embodiments of this application are described below with reference to the accompanying drawings. The directional terms used in the embodiments of this application, such as "upper," "lower," "top," and "bottom," are merely for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0166] The term "multiple" refers to at least two. The term "more than" includes the stated number. The term "and / or" describes a relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0167] Please refer to the following: Figures 1A to 1C , Figure 1A This is a schematic diagram of the structure of an electronic device 1000 in the open state according to an embodiment of this application. Figure 1B yes Figure 1A The diagram shows the structure of the electronic device 1000 in its first closed state. Figure 1C yes Figure 1A The diagram shows the structure of the electronic device 1000 in the second closed state.

[0168] In some embodiments, the electronic device 1000 includes a housing 100 and a screen 200, the screen 200 being mounted on the housing 100. For example... Figure 1A As shown, the housing device 100 can be unfolded to the open state; as Figure 1B and Figure 1C As shown, the housing device 100 can also be folded to a first closed state and a second closed state. The housing device 100 can also be unfolded or folded to an intermediate state, which can be any state between the open state and the first closed state, or between the first closed state and the second closed state. The screen 200 moves with the housing device 100, and the housing device 100 can drive the screen 200 to unfold or fold, so that the electronic device 1000 can unfold to the open state, or fold to the first closed state or the second closed state. When the electronic device 1000 is in the first closed state or the second closed state, the screen 200 is located inside the housing device 100. In some other embodiments, when the electronic device 1000 is in the first closed state and / or the second closed state, the screen 200 may also be located outside the housing device 100, which is not limited in this application.

[0169] In this embodiment, when the electronic device 1000 is in the open state, the screen 200 is flattened and can display in full screen, giving the electronic device 1000 a larger display area to improve the user's viewing and operating experience. When the electronic device 1000 is in the first closed state and the second closed state, the planar size of the electronic device 1000 is smaller, making it easier for users to carry and store; at this time, users can also view and operate on the exposed screen 200 to meet different application scenarios.

[0170] In some embodiments, screen 200 may integrate display and touch sensing functions. The display function of screen 200 is used to display images, videos, etc., and the touch sensing function of screen 200 is used to sense user touch actions to achieve human-computer interaction. For example, screen 200 includes a flexible display screen that can be bent. The flexible display screen can be a liquid crystal display (LCD), an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a flex light-emitting diode (FLED) display screen, a MiniLED display screen, a MicroLED display screen, a Micro-OLED display screen, a quantum dot light-emitting diode (QLED) display screen, etc.

[0171] In this embodiment, the electronic device 1000 is described as having a three-fold structure. That is, the electronic device 1000 includes three flat plate parts, with adjacent flat plate parts connected by bending portions. Adjacent flat plate parts can rotate relative to each other to overlap, giving the electronic device 1000 a two- or three-layer configuration (corresponding to a first closed state or a second closed state); adjacent flat plate parts can also rotate away from each other to flatten, giving the electronic device 1000 an open state. In other embodiments, the electronic device 1000 may also have a four-fold or higher structure, that is, the electronic device 1000 includes four or more flat plate parts, with adjacent flat plate parts connected by bending portions, and adjacent flat plate parts can rotate relative to each other to overlap or rotate away from each other to flatten. When the electronic device 1000 has a four-fold or higher structure, the structure of the electronic device 1000 can be adapted to the description of the three-fold structure in this embodiment, and will not be repeated here.

[0172] Please refer to the following: Figures 1A to 1C as well as Figure 2 , Figure 2 yes Figure 1A A partial exploded view of the electronic device 1000 shown.

[0173] In some embodiments, the housing device 100 includes a first housing 11, a second housing 12, a third housing 13, a first pivot assembly 2, a second pivot assembly 3, and a connecting device 4.

[0174] The first pivot assembly 2 can be connected between the first housing 11 and the second housing 12. The first pivot assembly 2 can deform so that the first housing 11 and the second housing 12 can be folded relative to each other from an open state to a first closed state, and from a first closed state to an open state; that is, the first housing 11 and the second housing 12 can be unfolded or folded relative to each other through the first pivot assembly 2. The second pivot assembly 3 can be connected between the second housing 12 and the third housing 13. The second pivot assembly 3 can also deform so that the second housing 12 and the third housing 13 can be folded relative to each other from a first closed state to a second closed state, and from a second closed state to a first closed state. The screen 200 can follow the movement of the first housing 11, the first pivot assembly 2, the second housing 12, the second pivot assembly 3, and the third housing 13, thereby realizing unfolding and folding; that is, the second housing 12 and the third housing 13 can be unfolded or folded relative to each other through the second pivot assembly 3. It should be understood that when the electronic device 1000 is in the open state, the screen 200, the housing device 100, and each component of the housing device 100 are correspondingly in the open state; when the electronic device 1000 is in the first closed state, the screen 200, the housing device 100, and each component of the housing device 100 are correspondingly in the first closed state; when the electronic device 1000 is in the second closed state, the screen 200, the housing device 100, and each component of the housing device 100 are correspondingly in the second closed state.

[0175] When the electronic device 1000 is in the open state, the first housing 11 and the second housing 12 are both open, as are the second housing 12 and the third housing 13. The angles between the first housing 11 and the second housing 12, and between the second housing 12 and the third housing 13, can all be approximately 180°. The first housing 11, the second housing 12, and the third housing 13 are all flattened, and the screen 200 is in a flattened state. In some other embodiments, when the electronic device 1000 is in the open state, the angles between the first housing 11 and the second housing 12, and / or the angles between the second housing 12 and the third housing 13, may deviate slightly from 180°, for example, by 165°, 177°, or 185°. In this case, the first housing 11, the second housing 12, and the third housing 13 are also considered to be flattened. The angle between the first housing 11 and the second housing 12 is defined as the angle between the upper sides of the first housing 11 and the second housing 12, and the angle between the second housing 12 and the third housing 13 is defined as the angle between the upper sides of the second housing 12 and the third housing 13. In this embodiment, the orientation that is the same as the light emission direction of the screen 200 is defined as "up", and the orientation that is opposite to the light emission direction of the screen 200 is defined as "down".

[0176] When the electronic device 1000 is in the first closed state, the first housing 11 and the second housing 12 are in the open state, the second housing 12 and the third housing 13 are in the folded state, the included angle between the first housing 11 and the second housing 12 can be approximately 0°, the first housing 11 and the second housing 12 are folded relative to each other, the included angle between the second housing 12 and the third housing 13 can be approximately 180°, the second housing 12 and the third housing 13 are flattened, and the screen 200 presents a folded form.

[0177] When the electronic device 1000 is in the second closed state, the first housing 11 and the second housing 12 are in a folded state, the second housing 12 and the third housing 13 are in a folded state, the included angle between the first housing 11 and the second housing 12 can be approximately 0°, the included angle between the second housing 12 and the third housing 13 can be approximately 0°, and the screen 200 is in a folded form.

[0178] It is understood that the first housing 11, the second housing 12, and the third housing 13 are housing components used to install and fix other components of the electronic device 1000, and have diverse structures. The embodiments of this application only briefly illustrate some of the structures of the first housing 11, the second housing 12, and the third housing 13, and the accompanying drawings are also simplified. The embodiments of this application do not strictly limit the specific structures of the first housing 11, the second housing 12, and the third housing 13.

[0179] In some embodiments, the first housing 11 may include a first middle frame and a first rear cover. The first middle frame is connected to one side of the first pivot assembly 2, and the first rear cover is located below and fixedly connected to the first middle frame. The first rear cover forms part of the exterior of the electronic device 1000. For example, the first rear cover may be a protective cover for protecting devices located inside the first housing 11 and for presenting part of the exterior of the electronic device 1000. In other embodiments, the first rear cover may also include a transparent cover and a display screen to realize display and / or touch functions.

[0180] The second housing 12 may include a second middle frame and a second rear cover. The second middle frame is connected to the other side of the first pivot assembly 2, and the second rear cover is located below and fixedly connected to the second middle frame. The second rear cover forms part of the exterior of the electronic device 1000. For example, the second rear cover may be a protective cover for protecting devices located inside the second housing 12 and also for presenting part of the exterior of the electronic device 1000. In other embodiments, the second rear cover may also include a transparent cover and a display screen to enable display and / or touch functionality.

[0181] The third housing 13 may include a third middle frame and a third rear cover. The third middle frame is connected to the other side of the first pivot assembly 2, and the third rear cover is located below and fixedly connected to the third middle frame. The third rear cover forms part of the exterior of the electronic device 1000. For example, the third rear cover may be a protective cover for protecting devices located inside the third housing 13 and also for presenting part of the exterior of the electronic device 1000. In some other embodiments, the third rear cover may also include a transparent cover and a display screen to enable display and / or touch functionality.

[0182] At least one of the first, second, and third middle frames may include both metal and plastic components, and is integrally formed using in-mold decoration (IMD) molding. When at least one of the first, second, and third rear covers is a protective cover, it may be made of glass or metal; this application does not impose strict limitations on this.

[0183] The first, second, and third middle frames each include a border portion and a middle plate portion. The border portion forms part of the appearance of the electronic device 1000. The middle plate portion is located inside the border portion. The middle plate portion may have multiple protrusions, grooves, or other mounting structures for cooperating with other components of the electronic device 1000 so that other components are mounted on at least one of the middle frames of the first, second, and third middle frames.

[0184] In this application, the first hinge assembly 2 connects the first housing 11 and the second housing 12. Through the structural design of the first hinge assembly 2, the first housing 11 and the second housing 12 can be flattened when the electronic device 1000 is in the open state, and together with the first hinge assembly 2, they provide a flat support environment for the screen 200. They can also be folded when the electronic device 1000 is in the first closed state and the second closed state, and together with the first hinge assembly 2, they provide a good screen-accommodating space for the screen 200. This allows the screen 200 of the electronic device 1000 to meet both the large-screen display requirements and the folding and storage requirements, and the screen 200 has a low risk of damage and high reliability.

[0185] The second hinge assembly 3 connects the second housing 12 and the third housing 13. Through the structural design of the second hinge assembly 3, the second housing 12 and the third housing 13 can be flattened when the electronic device 1000 is in the open state, and together with the second hinge assembly 3, they provide a flat support environment for the screen 200. They can also be folded when the electronic device 1000 is in the second closed state, and together with the second hinge assembly 3, they provide a good screen space for the screen 200. This allows the screen 200 of the electronic device 1000 to meet both the large screen display requirements and the folding and storage requirements, and the screen 200 has a low risk of damage and high reliability.

[0186] The connecting device 4 is connected between the first rotating shaft assembly 2 and the second rotating shaft assembly 3, and can move relative to the first rotating shaft assembly 2 and the second rotating shaft assembly 3 to control the movement of the second rotating shaft assembly 3, so that the housing device 100 is folded in a certain order. In this application, due to the size design of the first rotating shaft assembly 2 and the second rotating shaft assembly 3, the housing device 100 needs to fold the electronic device 1000 in the order of folding the first housing 11 first and then folding the third housing 13, so that the third housing 13, the first housing 11 and the second housing 12 are stacked in sequence and the forces between each pair are balanced, thereby avoiding compression or pulling on the first rotating shaft assembly 2 and the second rotating shaft assembly 3 and damaging their structure, so that the first rotating shaft assembly 2 and the second rotating shaft assembly 3 have a long service life and high reliability.

[0187] The following provides an exemplary description of the dimensional design of the first rotating shaft assembly 2 and the second rotating shaft assembly 3.

[0188] Please refer to the following: Figures 3A to 3C , Figure 3A yes Figure 1A The schematic diagram of the housing device 100 at another angle is shown. Figure 3B yes Figure 1B The schematic diagram of the housing device 100 at another angle is shown. Figure 3C yes Figure 1CThe schematic diagram of the housing device 100 shown from another angle.

[0189] In this embodiment, the plane containing the upper end of the second housing 12 is defined as the reference plane, and the direction perpendicular to this reference plane is defined as the thickness direction of the housing device 100. The upper end of the second housing 12 can be the endpoint of a convex structure or a flat upper surface. When the housing device 100 is in the open state, the first housing 11 and the second housing 12 are both open, as are the second housing 12 and the third housing 13. The upper ends of the first housing 11 and the third housing 13 are flush with the upper end of the second housing 12, and both are located within the reference plane. When the housing device 100 is in the first closed state, the upper end of the first housing 11 can be close to the upper end of the second housing 12. In this case, the plane containing the upper end of the first housing 11 is parallel to the reference plane. When the housing device 100 is in the second closed state, the upper end of the third housing 13 can be close to the lower end of the first housing 11. In this case, the plane containing the upper end of the third housing 13 is parallel to the reference plane.

[0190] In this embodiment, the first hinge assembly 2 has a first external surface 300, and the maximum dimension of the first external surface 300 in the thickness direction is defined as a first thickness. The second hinge assembly 3 has a second external surface 400, and the maximum dimension of the second external surface 400 in the thickness direction is defined as a second thickness. When the housing device 100 is in the open state, the first housing 11 and the second housing 12 together cover the first external surface 300 of the first hinge assembly 2, and the second housing 12 and the third housing 13 together cover the second external surface 400 of the second hinge assembly 3. When the housing device 100 is in the first closed state and the second closed state, the first external surface 300 of the first hinge assembly 2 is exposed relative to the first housing 11 and the second housing 12, and the first external surface 300 forms part of the external appearance of the housing device 100. When the housing device 100 is in the second closed state, the second external surface 400 of the second hinge assembly 3 is exposed relative to the second housing 12 and the third housing 13, and the second external surface 400 forms part of the external appearance of the electronic device 1000.

[0191] Among them, such as Figure 1C and Figure 3CAs shown, the first thickness of the first outer surface 300 of the first hinge assembly 2 is less than the second thickness of the second outer surface 400 of the second hinge assembly 3, and the second thickness of the second outer surface 400 is approximately equal to the sum of the dimensions of the first housing 11, the second housing 12, and the third housing 13 in the thickness direction. Therefore, if the third housing 13 is folded before the first housing 11 is folded, there is no support from the first housing 11 between the third housing 13 and the second housing 12. The second hinge assembly 3 will have difficulty supporting the third housing 13 alone and will be subjected to excessive pressure, thereby damaging the second hinge assembly 3. Furthermore, if the third housing 13 is folded first and then the first housing 11 is folded, the third housing 13 is added between the first housing 11 and the second housing 12, causing the first hinge assembly 2 to be subjected to excessive tension and the screen 200 to be subjected to excessive pressure, thereby damaging the first hinge assembly 2 and the screen 200.

[0192] Therefore, in this embodiment, based on the size design of the first hinge assembly 2 and the second hinge assembly 3, when folding the electronic device 1000, it is necessary to fold the first housing 11 first and then the third housing 13. Understandably, in some other embodiments, by adjusting the size design of the first hinge assembly 2 and the second hinge assembly 3, or by designing the structure of the first hinge assembly 2 and the second hinge assembly 3, when folding the electronic device 1000, it is also possible to fold the third housing 13 first and then the first housing 11, or to fold the first housing 11 and the third housing 13 simultaneously. This application does not limit this to any particular embodiment.

[0193] The following section will provide a detailed description of the structure of the first rotating shaft assembly 2, the second rotating shaft assembly 3, and the connecting device 4, as well as the connection structure between the three.

[0194] The following is an example illustrating the implementation structure of the first rotating shaft assembly 2.

[0195] Please refer to the following: Figure 4 , Figure 5 as well as Figure 6 , Figure 4 yes Figure 2 The diagram shown is a structural schematic of the first rotating shaft assembly 2. Figure 5 yes Figure 4 The diagram shown is a structural schematic of the first rotating shaft assembly 2 in the first closed state. Figure 6 yes Figure 4 The diagram shows a partial exploded view of the first rotating shaft assembly 2.

[0196] In some embodiments, the first rotating shaft assembly 2 includes a main shaft 21, a first support member 22, a second support member 23, and a connecting assembly 24. The main shaft 21 and the connecting assembly 24 together form the main motion mechanism of the first rotating shaft assembly 2. In this embodiment, the two ends near the main shaft 21 are defined as the top and bottom ends, respectively, and the direction from the top end to the bottom end of the main shaft 21 is the extension direction of the main shaft 21; the orientation near the top end of the main shaft 21 is defined as "top," and the orientation near the bottom end of the main shaft 21 is defined as "bottom."

[0197] For example, the connecting assembly 24 is connected to the main shaft 21 and is deformable, unfolding or folding relative to the main shaft 21. The connecting assembly 24 is also connected to the first housing 11 and the second housing 12 (see [reference]). Figure 2 When the connecting component 24 deforms relative to the main shaft 21, the first housing 11 and the second housing 12 deform relative to the main shaft 21 to unfold or fold relative to each other.

[0198] The first support member 22 and the second support member 23 are respectively connected to both sides of the connecting assembly 24. The first support member 22 and the second support member 23 move with the connecting assembly 24 to achieve relative unfolding and relative folding. Figure 4 As shown, during the process of the first rotating shaft assembly 2 unfolding from the closed state to the open state, the first support member 22 and the second support member 23 unfold relative to each other. The first support member 22 and the second support member 23 are respectively located on both sides of the main shaft 21. The first support member 22, the main shaft 21, and the second support member 23 are used together to provide a flat support environment. Figure 5 As shown, during the process of folding the first pivot assembly 2 from the open state to the closed state, the first support member 22 and the second support member 23 fold relative to each other. The first support member 22 and the second support member 23 are located on the same side of the main shaft 21, and the distance between the first support member 22 and the second support member 23 increases in the direction closer to the main shaft 21. The first support member 22, the second support member 23, and the main shaft 21 together form the screen-accommodating space 210. At this time, the shape of the screen-accommodating space 210 can be teardrop-shaped or similar to a teardrop shape.

[0199] In this embodiment, the first rotating shaft assembly 2 has one connecting component 24 as an example. It should be understood that in some other embodiments, the first rotating shaft assembly 2 may have more connecting components 24. The connecting components 24 may be split or merged. The structures of multiple connecting components 24 may be the same or different. This embodiment does not strictly limit this.

[0200] The following description, in conjunction with the accompanying drawings, will illustrate the structure of the various components of the spindle 21 and the connecting assembly 24 in some embodiments provided in this application, as well as the connection structure between the connecting assembly 24 and the spindle 21.

[0201] Please refer to the following: Figure 6 , Figure 7A as well as Figure 7B , Figure 7A yes Figure 6 The exploded view of the main shaft 21 is shown below. Figure 7B yes Figure 7A The diagram shows the structure of the main shaft 21 at another angle. Figure 7B Relative perspective Figure 7A The perspective is flipped left and right.

[0202] In some embodiments, the spindle 21 includes a main support plate 211, a cover 212, and a back cover 213. The cover 212 is fixed to the main support plate 211, forming an installation space between the cover 212 and the main support plate 211 for mounting the connecting assembly 24. The back cover 213 is located on the side of the cover 212 facing away from the main support plate 211 and is fixedly connected to the main support plate 211, forming the exterior surface of the electronic device 1000 and protecting the main support plate 211 and the cover 212. In this application, the size of the cover 212 can be smaller than that of the back cover 213 to reduce costs. Furthermore, the cover 212 and the back cover 213 are designed separately for easy processing, assembly, and replacement. In other embodiments, the cover 212 and the back cover 213 can also be an integrated structure; this application does not limit this. It should be understood that in other embodiments, the spindle 21 may have more covers, and the number, structure, and position of the covers correspond to the connecting assembly 24.

[0203] For example, such as Figure 7B As shown, the main support plate 211 has multiple mating structures on its lower side facing the cover 212. These mating structures mate with the cover 212 to form multiple mounting spaces for installing the connecting assembly 24. The mating structures may include grooves, openings, protrusions, etc. For example, the main support plate 211 may include a first arc surface 2111 and a first wavy surface 2112. The first arc surface 2111 may be a concave arc surface. The first wavy surface 2112 may include multiple regions arranged along the extension direction of the main shaft 21, each region including multiple concave arc surfaces, and the arrangement direction of the multiple arc surfaces is perpendicular to the extension direction of the main shaft 21.

[0204] Among them, such as Figure 7BAs shown, the main support plate 211 may be provided with limiting holes 2113, multiple clearance notches 2114, and multiple fastening holes 2115. The limiting holes 2113 are located at the ends of the main support plate 211 and are used to cooperate with the limiting structure of the cover to limit the installation position of the cover 212 relative to the main support plate 211. The multiple clearance notches 2114 are located on both sides of the main support plate 211 and are used to avoid the structural components of the connecting assembly 24 during the movement of the first rotating shaft assembly 2. The multiple fastening holes 2115 allow fasteners to pass through. The multiple clearance notches 2114 and the multiple fastening holes 2115 are distributed at the bottom, middle, and top of the main support plate 211.

[0205] For example, such as Figure 7A As shown, the cover 212 can generally be a cover structure with a concave center and raised sides. Multiple clearance notches 2121 can be provided on both sides of the cover 212. Multiple mating structures are provided on the upper side of the cover 212 facing the main support plate 211. These mating structures are used to mate with the main support plate 211 to form multiple installation spaces for installing the connecting assembly 24. The multiple mating structures can include grooves, openings, protrusions, etc. For example, the cover 212 can include a second arc surface 2122 and a second wave surface 2123. The second arc surface 2122 is a concave arc surface; the second wave surface 2123 includes multiple regions, each region including multiple concave arc surfaces. The second arc surface 2122 can mate with the first arc surface 2111 of the main support plate 211, and the second wave surface 2123 can mate with the first wave surface 2112 of the main support plate 211 to form installation spaces.

[0206] Among them, such as Figure 7A As shown, the cover 212 can be fixedly connected to the main support plate 211 by multiple fasteners. The cover 212 may also be provided with multiple fastening holes 2124. The multiple fastening holes 2124 of the cover 212 are aligned with some of the fastening holes 2115 of the main support plate 211, and multiple fasteners extend into the fastening holes 2124 of the cover 212 and the fastening holes 2115 of the main support plate 211 to lock the cover 212 and the main support plate 211.

[0207] Among them, such as Figure 7A As shown, the cover 212 may also be provided with a limiting post 2125. The limiting post 2125 is aligned with the limiting hole 2113 of the main support plate 211. The limiting post 2125 is inserted into the limiting hole 2113 of the cover 212 to limit the installation position of the cover 212 relative to the main support plate 211.

[0208] In this embodiment, the spindle 21 has a cover 212 as an example. It should be understood that in some other embodiments, the spindle 21 may have more covers. The structure of the multiple covers and the connection structure between the multiple covers and the main support plate 211 may be the same or different. This embodiment does not strictly limit this.

[0209] Please refer to the following: Figure 6 , Figure 8 as well as Figure 9 , Figure 8 yes Figure 6 The diagram shows the structure of the connecting component 24. Figure 9 yes Figure 8 A partially exploded view of the connecting component 24 shown.

[0210] In some embodiments, the connecting assembly 24 includes a first fixed frame 241, a second fixed frame 242, a first connecting arm 243, a second connecting arm 244, a first swing arm 245, a second swing arm 246, and a damping assembly 247. The two ends of the first connecting arm 243 are respectively connected to the main shaft 21 and the first fixed frame 241. The two ends of the first swing arm 245 are respectively connected to the main shaft 21 and the first fixed frame 241. The two ends of the second connecting arm 244 are respectively connected to the main shaft 21 and the second fixed frame 242. The two ends of the second swing arm 246 are respectively connected to the main shaft 21 and the second fixed frame 242. The damping assembly 247 is mounted on the main shaft 21 and connects the first swing arm 245 and the second swing arm 246. The damping assembly 247 provides motion damping force during the relative rotation of the first swing arm 245 and the second swing arm 246.

[0211] The connecting component 24 may also include a first rotating shaft 2481 and a second rotating shaft 2482. The first rotating shaft 2481 is used to connect the first connecting arm 243 and the first fixing frame 241, and the second rotating shaft 2482 is used to connect the second connecting arm 244 and the second fixing frame 242. The specific connection structure will be described later.

[0212] Please see Figure 10A , Figure 10A yes Figure 9 The diagram shows the structure of the first fixing frame 241.

[0213] In some embodiments, the first fixing frame 241 has a first pivot hole 2411, a first clearance notch 2412, a first sliding groove 2413, a first arcuate groove 2414, and a plurality of fastening holes 2415. The plurality of fastening holes 2415 allow fasteners to pass through and are fixedly connected to the first housing 11 by the fasteners. The plurality of fastening holes 2415 are distributed at the bottom, middle, and top of the first fixing frame 241.

[0214] For example, the first fixing frame 241 further includes a first rotating connection portion 2416. A first pivot hole 2411 is formed in the first rotating connection portion 2416. A first clearance notch 2412 may be located on one side of the first rotating connection portion 2416 to allow clearance for a portion of the structure of the mechanism connected to the first rotating connection portion 2416.

[0215] The first fixing frame 241 also includes an installation space that extends through the left and right end faces of the first fixing frame 241. The first sliding groove 2413 is disposed on the side wall of the installation space, and the structure installed in the installation space is slidably connected to the first sliding groove 2413.

[0216] For example, the first sliding groove 2413 has two oppositely arranged sidewalls, which are recessed to jointly form the guide space of the first sliding groove 2413. That is, the sidewalls of the first sliding groove 2413 may have recessed guide spaces to guide the sliding direction of the structural component installed in the first sliding groove 2413, making the relative sliding action between the first fixing bracket 241 and the corresponding structural component easier to achieve and with higher control precision.

[0217] The first arc-shaped groove 2414 is formed in two parts, one at the bottom end and the other at the top end of the first fixing frame 241. One side of the first arc-shaped groove 2414 at the bottom end of the first fixing frame 241 extends to the bottom surface of the first fixing frame 241, and one side of the first arc-shaped groove 2414 at the top end of the first fixing frame 241 extends to the top surface of the first fixing frame 241. In some other embodiments, the first arc-shaped groove 2414 may be a single groove, formed at either the bottom or top end of the first fixing frame 241.

[0218] For example, the first fixing bracket 241 may further include a first locking block 2417, which protrudes and is used to engage with the first housing 11. The first locking block 2417 may be provided with a fastening hole 2418. In this application, the first fixing bracket 241 can be fixed to the first housing 11 by fasteners passing through the fastening hole 2418.

[0219] Please see Figure 10B , Figure 10B yes Figure 9 The diagram shows the structure of the second fixing bracket 242 at another angle.

[0220] In some embodiments, the second mounting bracket 242 has a second pivot hole 230, a second clearance notch 2422, a second sliding groove 2423, a second arcuate groove 2424, and a plurality of fastening holes 2425.

[0221] For example, the second fixing bracket 242 includes a second rotatable connection portion 2426. A second pivot hole 230 is formed in the second rotatable connection portion 2426. A second clearance notch 2422 may be located on one side of the second rotatable connection portion 2426 to allow clearance for a portion of the structure of the mechanism connected to the second rotatable connection portion 2426.

[0222] The second fixing frame 242 also includes an installation space that extends through the left and right end faces of the second fixing frame 242. The second sliding groove 2423 is disposed on the side wall of the installation space, and the structure installed in the installation space is slidably connected to the second sliding groove 2423.

[0223] The second sliding groove 2423 has two oppositely arranged sidewalls, which are recessed to form a guide space for the second sliding groove 2423. That is, the sidewalls of the second sliding groove 2423 can have recessed guide spaces to guide the sliding direction of the structural components installed in the second sliding groove 2423, making the relative sliding action between the second fixing bracket 242 and the corresponding structural components easier to achieve and providing higher control precision.

[0224] The second arc-shaped groove 2424 is formed in two ways, at the bottom and top of the second fixing frame 242, respectively. One side of the second arc-shaped groove 2424 at the bottom of the second fixing frame 242 extends to the bottom surface of the second fixing frame 242, and one side of the second arc-shaped groove 2424 at the top of the second fixing frame 242 extends to the top surface of the second fixing frame 242. In some other embodiments, the second arc-shaped groove 2424 may be a single groove, formed at either the bottom or top of the second fixing frame 242. Multiple fastening holes 2415 allow fasteners to pass through and be fixedly connected to the second housing 12 by fasteners. The multiple fastening holes 2425 are distributed at the bottom, middle, and top of the second fixing frame 242.

[0225] For example, the second fixing bracket 242 may further include a second locking block 2427, which protrudes and is used to engage with the second housing 12. The second locking block 2427 may have fastening holes 24271. In this application, the second fixing bracket 242 can be fixed to the second housing 12 by multiple fasteners passing through multiple fastening holes 24271.

[0226] Please see Figure 11A , Figure 11A yes Figure 9 The diagram shows the structure of the first connecting arm 243.

[0227] In some embodiments, the first connecting arm 243 includes a first end 2431 and a second end 2432, both of which are rotatable ends. For example, the first end 2431 of the first connecting arm 243 is an arc-shaped arm; the second end 2432 of the first connecting arm 243 is provided with a pivot hole 2434.

[0228] The first connecting arm 243 further includes a connecting segment 2433 connecting the first end 2431 and the second end 2432. For example, the upper surface of the connecting segment 2433 can be bent relative to the upper surface of the second end 2432 of the first connecting arm 243. Sliding protrusions 2435 are provided on both sides of the connecting segment 2433. The arrangement of the connecting segment 2433 makes the structural design of the first connecting arm 243 more flexible, better meeting the connection and shape requirements of the connecting assembly 24 and the first rotating shaft assembly 2.

[0229] The first connecting arm 243 can be a one-piece molded structural component to achieve high structural strength. For example, the first connecting arm 243 can be formed using computer numerical control (CNC) milling. In other embodiments, the first connecting arm 243 can also be formed using metal injection molding; this application does not strictly limit this method.

[0230] Please see Figure 11B , Figure 11B yes Figure 9 The diagram shows the structure of the second connecting arm 244.

[0231] In some embodiments, the second connecting arm 244 includes a first end 2441 and a second end 2442, both of which are rotatable ends. For example, the first end 2441 of the second connecting arm 244 is an arc-shaped arm; the second end 2442 of the second connecting arm 244 is provided with a pivot hole 2444.

[0232] The second connecting arm 244 further includes a connecting segment 2443 connecting the first end 2441 and the second end 2442. For example, the upper surface of the connecting segment 2443 can be bent relative to the upper surface of the second end 2442 of the second connecting arm 244. Sliding protrusions 2445 are provided on both sides of the connecting segment 2443. The arrangement of the connecting segment 2443 makes the structural design of the second connecting arm 244 more flexible, better meeting the connection and shape requirements of the connecting assembly 24 and the first rotating shaft assembly 2.

[0233] The second connecting arm 244 can be a one-piece molded structural component to achieve high structural strength. For example, the second connecting arm 244 can be formed using computer numerical control (CNC) milling. In other embodiments, the second connecting arm 244 can also be formed using metal injection molding; this application does not strictly limit this method.

[0234] In some embodiments, the shape of the first connecting arm 243 may be the same as that of the second connecting arm 244, so as to use the same material, thereby saving the types of materials for the first rotating shaft assembly 2 and reducing the cost of the first rotating shaft assembly 2. In other embodiments, the shape of the first connecting arm 243 may be different from that of the second connecting arm 244, and the embodiments of this application do not strictly limit this.

[0235] Please see Figure 12A , Figure 12A yes Figure 9 The diagram shows the structure of the first swing arm 245.

[0236] In some embodiments, the first swing arm 245 includes a rotating end 2451 and a sliding end 2452. The rotating end 2451 of the first swing arm 245 has a pivot hole 2453 that extends through the rotating end 2451 of the first swing arm 245. The rotating end 2451 of the first swing arm 245 may also have a structure for engaging the damping assembly 247. For example, the rotating end 2451 of the first swing arm 245 may include a plurality of meshing teeth 2454, a plurality of first protrusions 2455, and a plurality of second protrusions 2459; the plurality of meshing teeth 2454 may be located in the middle of the rotating end 2451 of the first swing arm 245 and on the side opposite to the sliding end 2452 of the first swing arm 245; the plurality of first protrusions 2455 and the plurality of second protrusions 2459 are arranged opposite to each other at both ends of the rotating end 2451 of the first swing arm 245. The plurality of first protrusions 2455 are arranged in a ring and spaced apart from each other. The plurality of first protrusions 2455 are arranged around the pivot hole 2453 of the rotating end 2451 of the first swing arm 245. The plurality of second protrusions 2459 are arranged in a ring and spaced apart from each other. The plurality of second protrusions 2459 are arranged around the pivot hole 2453 of the rotating end 2451 of the first swing arm 245.

[0237] The sliding end 2452 of the first swing arm 245 includes sliding blocks 2456 located on both sides of the sliding end and a first mating space 2457. The first mating space 2457 is located in the middle of the two sliding blocks 2456 and extends to the upper surface of the first swing arm 245. The first swing arm 245 has a mating surface 2458 facing the upper surface of the first swing arm 245. The mating surface 2458 is located in the first mating space 2457 and is inclined relative to the upper surface of the first swing arm 245.

[0238] The first swing arm 245 can be a one-piece molded structural component to achieve high structural strength. For example, the first swing arm 245 can be formed using metal injection molding or other processes; this embodiment does not impose strict limitations on these methods.

[0239] Please see Figure 12B , Figure 12B yes Figure 9 The diagram shows the structure of the second swing arm 246 at another angle.

[0240] In some embodiments, the second swing arm 246 includes a rotating end 2461 and a sliding end 2462. The rotating end 2461 of the second swing arm 246 has a pivot hole 2463 that extends through the rotating end 2461 of the second swing arm 246. The rotating end 2461 of the second swing arm 246 may also have a structure for engaging the damping assembly 247. For example, the rotating end 2461 of the second swing arm 246 may include a plurality of meshing teeth 2464, a plurality of first protrusions 2465, and a plurality of second protrusions 2469; the plurality of meshing teeth 2464 may be located in the middle of the rotating end 2461 of the second swing arm 246 and on the side opposite to the sliding end 2462 of the second swing arm 246; the plurality of first protrusions 2465 and the plurality of second protrusions 2469 are arranged opposite to each other at both ends of the rotating end 2461 of the second swing arm 246, the plurality of first protrusions 2465 are arranged in a ring and spaced apart from each other, the plurality of first protrusions 2465 are arranged around the pivot hole 2463 of the rotating end 2461 of the second swing arm 246, the plurality of second protrusions 2469 are arranged in a ring and spaced apart from each other, and the plurality of second protrusions 2469 are arranged around the pivot hole 2463 of the rotating end 2461 of the second swing arm 246.

[0241] The sliding end 2462 of the second swing arm 246 includes sliding blocks 2466 located on both sides of the sliding end and a second mating space 2467. The second mating space 2467 is located in the middle of the two sliding blocks 2466 and extends to the upper surface of the first swing arm 245. The second swing arm 246 has a mating surface 2468 facing the upper surface of the first swing arm 245. The mating surface 2468 is located in the second mating space 2467 and is inclined relative to the upper surface of the first swing arm 245.

[0242] The second swing arm 246 can be a one-piece molded structural component to achieve high structural strength. For example, the second swing arm 246 can be formed using metal injection molding or other processes; this embodiment does not impose strict limitations on these methods.

[0243] In some embodiments, the shape of the first swing arm 245 may be the same as that of the second swing arm 246, so as to use the same material, thereby saving the types of materials for the first rotating shaft assembly 2 and reducing the cost of the first rotating shaft assembly 2. In other embodiments, the shape of the first swing arm 245 may be different from that of the second swing arm 246, and the embodiments of this application do not strictly limit this.

[0244] Please refer to the following: Figure 9 , Figure 13 and Figure 14 , Figure 13 yes Figure 9 The diagram shows the structure of the damping component 247 at another angle. Figure 14 yes Figure 13 The diagram shows an exploded view of the damping component 247.

[0245] In some embodiments, the damping assembly 247 includes a first locking member 2471, a second locking member 2472, a plurality of synchronizing gears 2473, a first fixing plate 2474, an elastic member 2475, a second fixing plate 2476, a first adapter shaft 2477, a second adapter shaft 2478, and a plurality of third adapter shafts 2479. In this embodiment, the example of "two synchronizing gears 2473 and two third adapter shafts 2479" is used for illustration.

[0246] For example, the first locking member 2471 includes a first locking plate 24711 and a plurality of first protrusion groups 24712, the plurality of first protrusion groups 24712 being fixed to the same side surface of the first locking plate 24711. The first locking plate 24711 includes a plurality of first through holes 24713, the plurality of first through holes 24713 being spaced apart from each other. The plurality of first through holes 24713 can be arranged in a straight line, an arc, a wavy line, or other similar pattern. The plurality of first protrusion groups 24712 are arranged one-to-one with the plurality of first through holes 24713. The number of first through holes 24713 and the number of first protrusion groups 24712 can be four. Each first bump group 24712 may include multiple first bumps 24714, which are arranged in a ring and spaced apart from each other. The multiple first bumps 24714 are arranged around the first through hole 24713, and a first locking groove 24715 is formed between two adjacent first bumps 24714. The first locking member 2471 can be a one-piece molded structural component to have high structural strength.

[0247] For example, the second locking member 2472 includes a second locking plate 24721 and a plurality of second protrusion groups 24722, the plurality of second protrusion groups 24722 being fixed to the same side surface of the second locking plate 24721. The second locking plate 24721 includes a plurality of second through holes 24723, the plurality of second through holes 24723 being spaced apart from each other. The plurality of second protrusion groups 24722 are arranged in a one-to-one correspondence with the plurality of second through holes 24723. The number of second through holes 24723 and the number of second protrusion groups 24722 can be four. Each second protrusion group 24722 may include a plurality of second protrusions 24724, the plurality of second protrusions 24724 being arranged in a ring and spaced apart from each other, the plurality of second protrusions 24724 being arranged around the second through holes 24723, and a second locking groove 24725 being formed between two adjacent second protrusions 24724. The second locking component 2472 can be an integrally formed structural component to have high structural strength.

[0248] The structure of the second locking member 2472 can be the same as that of the first locking member 2471, so as to use the same material, reduce the types of materials in the first rotating shaft assembly 2, and reduce the cost of the first rotating shaft assembly 2. In some other embodiments, the structure of the second locking member 2472 may also be different from that of the first locking member 2471, and this application does not impose strict limitations on this.

[0249] In this embodiment, the plurality of first protrusion groups 24712 of the first locking member 2471 are disposed opposite to the plurality of second protrusion groups 24722 of the second locking member 2472, with each of the plurality of first protrusion groups 24712 and the plurality of second protrusion groups 24722 corresponding one-to-one. For example, in the corresponding first protrusion group 24712 and second protrusion group 24722, the position of the first protrusion 24714 is directly opposite the position of the second protrusion 24724, and the position of the first locking groove 24715 is directly opposite the position of the second locking groove 24725. In other embodiments, the positions of the first protrusion 24714 and the second protrusion 24724 may be staggered or have other positional relationships, and the positions of the first locking groove 24715 and the second locking groove 24725 may also be staggered or have other positional relationships; this application does not strictly limit these relationships.

[0250] For example, multiple synchronizing gears 2473 are located between the first locking member 2471 and the second locking member 2472, and the multiple synchronizing gears 2473 mesh with each other. Each synchronizing gear 2473 is provided with a shaft hole 24731. Each synchronizing gear 2473 may include multiple meshing teeth 24732, multiple first protrusions 24733, and multiple second protrusions 24734. The multiple meshing teeth 24732 may be located in the middle of the synchronizing gear 2473, and the multiple meshing teeth 24732 of two adjacent synchronizing gears 2473 mesh with each other. Multiple first protrusions 24733 and multiple second protrusions 24734 are disposed opposite to each other at both ends of the synchronous gear 2473. The multiple first protrusions 24733 are arranged in a ring and spaced apart from each other, and are arranged around the shaft hole 24731 of the synchronous gear 2473. The multiple second protrusions 24734 are arranged in a ring and spaced apart from each other, and are arranged around the shaft hole 24731 of the synchronous gear 2473.

[0251] In some usage configurations, the multiple first protrusions 24733 of the synchronizing gear 2473 are staggered with the multiple first protrusions 24714 of one of the first protrusion groups 24712 to form a snap-fit ​​structure, with the multiple first protrusions 24733 correspondingly snapping into the multiple first locking slots 24715; similarly, the multiple second protrusions 24734 of the synchronizing gear 2473 are staggered with the multiple second protrusions 24724 of one of the second protrusion groups 24722 to form a snap-fit ​​structure, with the multiple second protrusions 24734 correspondingly snapping into the multiple second locking slots 24725. The shape and position of the multiple first protrusions 24733 of the synchronizing gear 2473 are adapted to the shape and position of the corresponding multiple first locking slots 24715. The shape and position of the multiple second protrusions 24734 of the synchronizing gear 2473 are adapted to the shape and position of the corresponding multiple second locking slots 24725.

[0252] The synchronizing gear 2473 can be a one-piece molded structural component to achieve high structural strength. Multiple synchronizing gears 2473 can have identical structures, utilizing the same material to reduce the variety of materials used in the first rotating shaft assembly 2 and lower its cost. In other embodiments, the structures of the multiple synchronizing gears 2473 can also differ; this application does not impose strict limitations on this.

[0253] For example, the first fixing plate 2474 is located on the side of the first locking member 2471 facing away from the second locking member 2472. The first fixing plate 2474 includes a plurality of slots 24741 spaced apart from each other, the slots 24741 extending to the side of the first fixing plate 2474, so that the adapter shafts (2477, 2478, 2479) can be engaged from the side of the first fixing plate 2474 into the slots 24741 to engage the first fixing plate 2474. The first fixing plate 2474 may be generally flat.

[0254] For example, the elastic element 2475 is located on the side of the second locking element 2472 facing away from the first locking element 2471. The elastic element 2475 includes a plurality of springs 24751. The number of springs 24751 is the same as the number of first through holes 24713. The number of springs 24751 can be four. In some other embodiments, the elastic element 2475 may also be made of elastic materials such as elastic rubber; this application does not strictly limit this.

[0255] For example, the second fixing plate 2476 is located on the side of the elastic member 2475 facing away from the second locking member 2472. The second fixing plate 2476 may be a plate structure. The second fixing plate 2476 includes a plurality of third through holes 24761, which are spaced apart from each other. For example, the number, arrangement shape, and arrangement spacing of the plurality of first through holes 24713, the plurality of second through holes 24723, and the plurality of third through holes 24761 may be the same. The number of third through holes 24761 may be four.

[0256] For example, the top end of the first adapter shaft 2477 is provided with a limiting flange 24771, the outer diameter of which is larger than the outer diameter of the main body of the first adapter shaft 2477. The bottom end of the first adapter shaft 2477 is provided with a limiting groove 24772, which is recessed relative to the outer surface of the main body of the first adapter shaft 2477, and the diameter of the bottom wall of the limiting groove 24772 is smaller than the outer diameter of the main body of the first adapter shaft 2477.

[0257] The first adapter shaft 2477 is inserted into the second fixing plate 2476, one of the springs 24751, the second locking member 2472, the first locking member 2471, and the first fixing plate 2474. The first adapter shaft 2477 passes through one of the third through holes 24761 of the second fixing plate 2476, the inner space of one of the springs 24751, one of the second through holes 24723 of the second locking member 2472, one of the first through holes 24713 of the first locking member 2471, and one of the slots 24741 of the first fixing plate 2474. Furthermore, the limiting flange 24771 of the first adapter shaft 2477 is located on the side of the second fixing plate 2476 facing away from the second locking member 2472 and abuts against the second fixing plate 2476. The first fixing plate 2474 is engaged with the limiting groove 24772 of the first adapter shaft 2477, so that the first adapter shaft 2477, the second fixing plate 2476, one of the springs 24751, the second locking member 2472, the first locking member 2471, and the first fixing plate 2474 can maintain a relatively fixed positional relationship, and the spring 24751 is in a compressed state. The bottom end of the first adapter shaft 2477 can also be fixedly connected to the first fixing plate 2474 by welding or bonding.

[0258] For example, the second adapter shaft 2478 has a limiting flange 24781 at its top end, and the outer diameter of the limiting flange 24781 is larger than the outer diameter of the main body of the second adapter shaft 2478. The second adapter shaft 2478 has a limiting groove 24782 at its bottom end, which is recessed relative to the outer surface of the main body of the second adapter shaft 2478, and the diameter of the bottom wall of the limiting groove 24782 is smaller than the outer diameter of the main body of the second adapter shaft 2478. The structure of the second adapter shaft 2478 can be the same as that of the first adapter shaft 2477 to use the same material, reducing the types of materials used in the first shaft assembly 2 and lowering its cost. In other embodiments, the structure of the second adapter shaft 2478 may differ from that of the first adapter shaft 2477; this application does not impose strict limitations on this.

[0259] The second adapter shaft 2478 is inserted into the second fixing plate 2476, another spring 24751, the second locking member 2472, the first locking member 2471, and the first fixing plate 2474. The second adapter shaft 2478 passes through another third through hole 24761 of the second fixing plate 2476, the inner space of the other spring 24751, another second through hole 24723 of the second locking member 2472, another first through hole 24713 of the first locking member 2471, and another slot 24741 of the first fixing plate 2474. Furthermore, the limiting flange 24781 of the second adapter shaft 2478 is located on the side of the second fixed plate 2476 facing away from the second locking member 2472 and abuts against the second fixed plate 2476. The first fixed plate 2474 is engaged with the limiting groove 24782 of the second adapter shaft 2478, so that the second adapter shaft 2478, the second fixed plate 2476, the other spring 24751, the second locking member 2472, the first locking member 2471, and the first fixed plate 2474 can maintain a relatively fixed positional relationship, and the spring 24751 is in a compressed state. The bottom end of the second adapter shaft 2478 can also be fixedly connected to the first fixed plate 2474 by welding or bonding.

[0260] For example, the top end of the third adapter shaft 2479 is provided with a limiting flange 24791, the outer diameter of which is larger than the outer diameter of the main body of the third adapter shaft 2479. The bottom end of the third adapter shaft 2479 is provided with a limiting groove 24792, which is recessed relative to the outer surface of the main body of the third adapter shaft 2479, and the diameter of the bottom wall of the limiting groove 24792 is smaller than the outer diameter of the main body of the third adapter shaft 2479. The structure of the third adapter shaft 2479 can be the same as that of the first adapter shaft 2477 to use the same material, reducing the types of materials used in the first shaft assembly 2 and lowering its cost. In other embodiments, the structure of the third adapter shaft 2479 may differ from that of the first adapter shaft 2477, and this application does not impose strict limitations on this.

[0261] The number of third adapter shafts 2479 is the same as the number of synchronous gears 2473. The third adapter shafts 2479, synchronous gears 2473, and some springs 24751 in the elastic element 2475 are arranged in a one-to-one correspondence. The third adapter shaft 2479 is inserted into the second fixing plate 2476, another spring 24751, the second locking member 2472, the synchronous gear 2473, the first locking member 2471, and the first fixing plate 2474. Specifically, the third adapter shaft 2479 passes through another third through hole 24761 of the second fixing plate 2476, the inner space of the other spring 24751, another second through hole 24723 of the second locking member 2472, the shaft hole 24731 of the synchronous gear 2473, another first through hole 24713 of the first locking member 2471, and another slot 24741 of the first fixing plate 2474. Furthermore, the limiting flange 24791 of the third adapter shaft 2479 is located on the side of the second fixing plate 2476 facing away from the second locking member 2472 and abuts against the second fixing plate 2476. The first fixing plate 2474 is engaged with the limiting slot 24792 of the third adapter shaft 2479, so that the third adapter shaft 2479, the second fixing plate 2476, another spring 24751, the second locking member 2472, the first locking member 2471, and the first fixing plate 2474 can maintain a relatively fixed positional relationship, and the spring 24751 is in a compressed state. The bottom end of the third adapter shaft 2479 can also be fixedly connected to the first fixing plate 2474 by welding or bonding.

[0262] It is understood that the damping component 247 of this application can have various implementation structures. For example, in some other embodiments, the damping component 247 can indirectly limit the position of the first swing arm 245 and the second swing arm 246 by limiting the position of the synchronizing gear 2473. For example, the first locking member 2471 and the second locking member 2472 form a locking structure with the synchronizing gear 2473, and there is no locking structure between the rotating end 2451 of the first swing arm 245 and the rotating end 2461 of the second swing arm 246 and the first locking member 2471 and the second locking member 2472. In some other embodiments, the damping component 247 may also omit the second locking member 2472, and the locking structure between the first locking member 2471 and the synchronizing gear 2473, the first swing arm 245 and the second swing arm 246 allows the first swing arm 245 and the second swing arm 246 to stay at certain positions. In some other embodiments, the damping component 247 may not have a fixed plate, and the two ends of the elastic member 2475 may respectively abut against the first locking member 2471 and the main shaft 21, with the elastic member 2475 compressed between the first locking member 2471 and the main shaft 21. In some other embodiments, the damping component 247 may not have a synchronous gear 2473 and a third adapter shaft 2479, and the rotating end 2451 of the first swing arm 245 may directly mesh with the rotating end 2461 of the second swing arm 246. The above embodiments are exemplary structures of the damping component 247, and the damping component 247 may have other implementation structures, which are not strictly limited in this application.

[0263] Please see Figure 15 , Figure 15 yes Figure 8 The diagram shows a partial structural schematic of the connecting component 24, and is available in conjunction with reference to [other documents / references]. Figure 12A The structure of the first swing arm 245 shown is as follows: Figure 12B The structure of the second swing arm 246 shown and Figure 14 The structure of the damping component 247 shown is illustrated.

[0264] In this embodiment, the rotating end 2451 of the first swing arm 245, the rotating end 2461 of the second swing arm 246, and the synchronizing gear 2473 are all engaged with the first locking member 2471 and the second locking member 2472, forming a locking structure, which allows the first swing arm 245 and the second swing arm 246 to stay at certain positions. Furthermore, since the relative positional relationship of the components of the damping assembly 247 is stable, the elastic member 2475 is in a compressed state. The elastic force generated by the elastic member 2475 drives the first locking member 2471 and the second locking member 2472 to cooperate in pressing the rotating end 2451 of the first swing arm 245, the synchronizing gear 2473, and the rotating end 2461 of the second swing arm 246, thereby stabilizing the locking structure between the rotating end 2451 of the first swing arm 245, the synchronizing gear 2473, and the rotating end 2461 of the second swing arm 246 and the first locking member 2471 and the second locking member 2472.

[0265] When the rotating end 2451 of the first swing arm 245, the rotating end 2461 of the second swing arm 246, and the synchronous gear 2473 rotate relative to the first locking member 2471 and the second locking member 2472, the relative positions of the multiple first protrusions (2455, 2465, 24733) and the multiple first protrusions 24714 change, which can form different locking structures. The relative positions of the multiple second protrusions (2458, 2469, 24734) and the multiple second protrusions 24724 change, which can form different locking structures.

[0266] Specifically, when the first swing arm 245 and the second swing arm 246 move relative to each other, the rotating end 2451 of the first swing arm 245, the synchronous gear 2473, and the rotating end 2461 of the second swing arm 246 need to switch from one locking structure to another between the first locking member 2471 and the second locking member 2472. During the switching process, the first locking member 2471 moves away from the second locking member 2472, and the elastic member 2475 is further compressed. The elastic force generated by the elastic member 2475 forms a motion damping force, so that the first swing arm 245 and the second swing arm 246 require a certain driving force to move relative to each other. In short, the damping component 247 can provide motion damping force for the relative movement of the first swing arm 245 and the second swing arm 246.

[0267] Please refer to the following: Figure 16 , Figure 17A as well as Figure 17B , Figure 16 yes Figure 8 The connecting component 24 shown is Figure 7A The diagram shows the assembly structure of the bottom cover 212 and back cover 213 of the main spindle 21. Figure 17A yes Figure 6 The diagram shows a cross-sectional view of the assembly structure of the connecting component 24 and the main shaft 21 taken along line A1-A1. Figure 17B yes Figure 17A The diagram shows the structure in its first closed state. The cross-section along A1-A1 passes through the first fixing frame 241, the first connecting arm 243, the main shaft 21, the second connecting arm 244, and the second fixing frame 242. Figure 6 The position of A1-A1 in the middle and Figure 16 The positions of A1-A1 in the diagram are the same.

[0268] In some embodiments, the first end 2431 of the first connecting arm 243 is rotatably connected to the main shaft 21, and the second end 2432 of the first connecting arm 243 is rotatably connected to the first fixing frame 241. The first end 2441 of the second connecting arm 244 is rotatably connected to the main shaft 21, and the second end 2442 of the second connecting arm 244 is rotatably connected to the second fixing frame 242.

[0269] The first end 2431 of the first connecting arm 243 is rotatably connected to the main shaft 21 via a virtual shaft connection. The bottom rotating shaft 2481 passes through the rotating shaft hole 2434 of the second end 2432 of the first connecting arm 243 and through the first rotating shaft hole 2411 of the first fixing frame 241 (see reference). Figure 10A ), to insert the second end 2432 of the first connecting arm 243 and the first fixing frame 241, so that the second end 2432 of the first connecting arm 243 is rotatably connected to the first fixing frame 241 through the connection of the solid shaft.

[0270] The first end 2441 of the second connecting arm 244 is rotatably connected to the main shaft 21 via a virtual shaft connection. The bottom rotating shaft 2482 passes through the rotating shaft hole 2444 of the second end 2442 of the second connecting arm 244 and through the second rotating shaft hole 230 of the second fixing bracket 242 (see reference). Figure 10B ), to insert the second end 2442 of the second connecting arm 244 and the second fixing frame 242, so that the second end 2442 of the second connecting arm 244 is rotatably connected to the second fixing frame 242 through the connection of the solid shaft.

[0271] It is understood that in some other embodiments, the first end 2431 of the first connecting arm 243 and / or the first end 2441 of the second connecting arm 244 may also be rotatably connected to the main shaft 21 via a physical shaft connection, and this application does not impose strict limitations on this. In some other embodiments, the second end 2432 of the first connecting arm 243 may also be rotatably connected to the first fixing frame 241 via a virtual shaft connection; and / or, the second end 2442 of the second connecting arm 244 may also be rotatably connected to the second fixing frame 242 via a virtual shaft connection, and this application does not impose strict limitations on this.

[0272] Please refer to the following: Figure 16 , Figure 18A as well as Figure 18B , Figure 18A yes Figure 6 The diagram shows a cross-sectional view of the assembly structure of the connecting component 24 and the main shaft 21 taken along line A2-A2. Figure 18B yes Figure 18A The diagram shows the structure in its first closed state. The cross-section along A2-A2 passes through the first fixed frame 241, the first swing arm 245, the main shaft 21, the second swing arm 246, and the second fixed frame 242. Figure 6 The position of A2-A2 in the middle and Figure 16 The positions of A2-A2 in the diagram are the same.

[0273] In some embodiments, the rotating end 2451 of the first swing arm 245, the rotating end 2461 of the second swing arm 246, and the damping assembly 247 are all mounted on the main shaft 21. The first locking member 2471 and the second locking member 2472 of the damping assembly 247 are fixed relative to the main shaft 21. The rotating end 2451 of the first swing arm 245 is rotatably connected to the first locking member 2471 and the second locking member 2472 via a first adapter shaft 2477, thereby rotatably connecting to the main shaft 21. The rotating end 2461 of the second swing arm 246 is rotatably connected to the first locking member 2471 and the second locking member 2472 via a second adapter shaft 2478, thereby rotatably connecting to the main shaft 21. Each synchronous gear 2473 is rotatably connected to the first locking member 2471 and the second locking member 2472 via a third adapter shaft 2479, thereby rotatably connecting to the main shaft 21.

[0274] In this embodiment, the rotating end 2451 of the first swing arm 245 and the rotating end 2461 of the second swing arm 246 are connected by multiple synchronous gears 2473. Therefore, the rotation angle of the rotating end 2451 of the first swing arm 245 is the same as and opposite in direction to the rotation angle of the rotating end 2461 of the second swing arm 246, so that the rotation of the first swing arm 245 and the second swing arm 246 relative to the main shaft 21 remains synchronized, that is, they synchronously move closer to each other or further away from each other. In other words, the first swing arm 245 and the second swing arm 246 rotate synchronously relative to the main shaft 21 under the drive of the damping assembly 247.

[0275] Please refer to the following: Figure 16 , Figure 19A as well as Figure 19B , Figure 19A yes Figure 6 The diagram shows a cross-sectional view of the assembly structure of the connecting component 24 and the spindle 21 taken along line A3-A3. Figure 19B yes Figure 19A The diagram shows the structure in its first closed state. The cross-section along A3-A3 passes through the first fixed frame 241, the first swing arm 245, the main shaft 21, the second swing arm 246, and the second fixed frame 242. Figure 6The position of A3-A3 in the middle and Figure 16 The positions of A3-A3 in the diagram are the same.

[0276] In some embodiments, the sliding end 2452 of the first swing arm 245 is slidably mounted in the first sliding groove 2413 of the first fixed frame 241 to slidably connect to the first fixed frame 241. The sliding block 2456 of the sliding end 2452 of the first swing arm 245 is partially located in the guide space of the first sliding groove 2413, and the two cooperate to guide the sliding direction of the sliding end 2452 of the first swing arm 245 relative to the first fixed frame 241. The sliding end 2462 of the second swing arm 246 is slidably mounted in the second sliding groove 2423 of the second fixed frame 242 to slidably connect to the second fixed frame 242. The sliding block 2466 of the sliding end 2462 of the second swing arm 246 is partially located in the guide space of the second sliding groove 2423, and the two cooperate to guide the sliding direction of the sliding end 2462 of the second swing arm 246 relative to the second fixed frame 242.

[0277] Please refer to the following: Figures 17A to 18B and Figure 20 , Figure 20 yes Figure 8 The diagram shows the structure of the connecting component 24 and the main shaft 21 in the first closed state.

[0278] In this application, the two ends (2431, 2432) of the first connecting arm 243 of the connecting assembly 24 are rotatably connected to the main shaft 21 and the first fixed frame 241, respectively, forming a linkage structure. The rotating end 2451 of the first swing arm 245 is rotatably connected to the main shaft 21, and the sliding end 2452 is slidably connected to the first fixed frame 241, forming a linkage-slider structure. The two ends (2441, 2442) of the second connecting arm 244 are rotatably connected to the main shaft 21 and the second fixed frame 242, respectively, forming a linkage structure. The rotating end 2461 of the second swing arm 246 is rotatably connected to the main shaft 21, and the sliding end 2462 is slidably connected to the second fixed frame 242, forming a linkage-slider structure. The first fixed frame 241 is used to connect the first housing 11, and the second fixed frame 242 is used to connect the second housing 12. Therefore, the connecting assembly 24 of the first rotating shaft assembly 2 realizes the connection between the first housing 11 and the second housing 12 and the main shaft 21 through the linkage structure and the linkage-slider structure.

[0279] like Figure 17A , Figure 18A and Figure 16As shown, when the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are unfolded from the first closed state to the open state through the first rotating shaft assembly 2, the first end 2431 of the first connecting arm 243 rotates into the main shaft 21, the first end 2441 of the second connecting arm 244 rotates into the main shaft 21, the sliding end 2452 of the first swing arm 245 slides into the first fixed frame 241, and the sliding end 2462 of the second swing arm 246 slides into the second fixed frame 242. The distance between the first fixed frame 241 and the second fixed frame 242 and the main shaft 21 is small.

[0280] like Figure 17B , Figure 18B and Figure 20 As shown, when the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are folded from the open state to the first closed state through the first rotating shaft assembly 2, the first end 2431 of the first connecting arm 243 rotates out of the main shaft 21, the first end 2441 of the second connecting arm 244 rotates out of the main shaft 21, the sliding end 2452 of the first swing arm 245 slides out of the first fixing frame 241, and the sliding end 2462 of the second swing arm 246 slides out of the second fixing frame 242. The distance between the first fixing frame 241 and the second fixing frame 242 and the main shaft 21 is relatively large. Therefore, when the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are unfolded from the first closed state to the open state through the first pivot assembly 2, the first fixing frame 241 and the second fixing frame 242 respectively pull the first housing 11 and the second housing 12 closer to the main shaft 21. When the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are folded from the open state to the first closed state through the first pivot assembly 2, the first fixing frame 241 and the second fixing frame 242 respectively push the first housing 11 and the second housing 12 away from the main shaft 21. This allows the structure of the first pivot assembly 2 to better adapt to the deformation structure of the screen 200, thereby reducing the risk of pulling or squeezing the screen 200 and improving the reliability of the screen 200 and the electronic device 1000.

[0281] When the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are folded from the open state to the first closed state via the first rotating shaft assembly 2, the main shaft 21 moves away from the first fixed frame 241 and the second fixed frame 242. The rotating end 2451 of the first swing arm 245 and the rotating end 2461 of the second swing arm 246 are rotatably connected to the main shaft 21 via fixed shafts. Therefore, the sliding end 2452 of the first swing arm 245 and the sliding end 2462 of the second swing arm 246 are away from the first fixed frame 241 and the second fixed frame 242, respectively. This allows a clearance space 2460 to be left between the sliding end 2452 of the first swing arm 245 and the first fixed frame 241, and between the sliding end 2462 of the second swing arm 246 and the second fixed frame 242, to allow clearance for part of the structure of the connecting device 4, so that the connecting device 4 can move relative to the first rotating shaft assembly 2.

[0282] The above mainly introduces the main motion mechanism of the first rotating shaft assembly 2. The first support member 22 and the second support member 23 of the first rotating shaft assembly 2 move relative to each other as the main motion mechanism moves. The following describes the structure of the first support member 22, the structure of the second support member 23, and the connection structure between the first support member 22, the second support member 23 and the connecting assembly 24 with reference to the accompanying drawings.

[0283] Please see Figure 21A , Figure 21A yes Figure 6 The diagram shows the structure of the first support member 22 at another angle.

[0284] In some embodiments, the first support member 22 includes a first support plate 221, a first rotating block 222, a first guide member 223, and a first mating member 224. The first rotating block 222, the first guide member 223, and the first mating member 224 are fixed to the first support plate 221. For example, the first support plate 221 can be made of a material with low density and certain rigidity, such as carbon fiber. The first rotating block 222, the first guide member 223, and the first mating member 224 can be integrally formed using a metal injection molding process to achieve high structural strength.

[0285] The first rotating block 222 may include a baffle 2221 and a second arc-shaped arm 2222. One side of the second arc-shaped arm 2222 is connected to the baffle 2221, and the other side is suspended. The baffle 2221 supports the second arc-shaped arm 2222 to increase the structural strength of the first rotating block 222. The second arc-shaped arm 2222 is fixedly connected to the first support plate 221.

[0286] The first guide member 223 is provided with a guide groove 2231. The opening of the guide groove 2231 is located on the end face of the first guide member 223, allowing structural members mounted on the guide groove 2231 to be inserted into the guide groove 2231 from the opening on the end face and to slide back and forth along the extension direction of the guide groove 2231, thus providing a limiting function. For example, the extension direction of the guide groove 2231 can be arc-shaped. Of course, the extension direction of the guide groove 2231 can also be designed as a curve, a straight line, or a broken line, or a combination of one or more of these.

[0287] The first mating component 224 is inclined relative to the first support plate 221 so as to perform a limiting function by engaging with other structures on an inclined plane.

[0288] It should be understood that the first rotating block 222 mainly provides a rotating connection structure, but the first rotating block 222 can also have other implementation structures, which are not strictly limited in this application. The first guide member 223 mainly provides a guide groove to guide the movement direction of other structural members. This application may not have the first guide member 223, or the movement direction of the structural members may be guided by other structures, which are not strictly limited in this application. The first mating member 224 mainly provides a mating structure to cooperate with other structures. This application may not have the first mating member 224, or the cooperation may be achieved by other structures, which are not strictly limited in this application.

[0289] Please see Figure 21B , Figure 21B yes Figure 6 The diagram shows the structure of the second support member 23 at another angle.

[0290] In some embodiments, the second support member 23 includes a second support plate 231, a second rotating block 232, a second guide member 233, and a second mating member 234. The second rotating block 232, the second guide member 233, and the second mating member 234 are fixed to the second support plate 231. For example, the second support plate 231 can be made of a material with low density and certain rigidity, such as carbon fiber. The second rotating block 232, the second guide member 233, and the second mating member 234 can be integrally molded using a metal injection molding process to achieve high structural strength.

[0291] The second rotating block 232 may include a baffle 2321 and a second arc-shaped arm 2322. One side of the second arc-shaped arm 2322 is connected to the baffle 2321, and the other side is suspended. The baffle 2321 is used to support the second arc-shaped arm 2322 to increase the structural strength of the first rotating block 222.

[0292] The second guide member 233 is provided with a guide groove 2331. The opening of the guide groove 2331 is located on the end face of the second guide member 233, allowing structural members mounted on the guide groove 2331 to be inserted into the guide groove 2331 from the opening on the end face and to slide back and forth along the extension direction of the guide groove 2331, thus providing a limiting function. For example, the extension direction of the guide groove 2331 can be arc-shaped. Of course, the extension direction of the guide groove 2331 can also be designed as a curve, a straight line, or a broken line, or a combination of one or more of these.

[0293] The second mating component 234 is inclined relative to the second support plate 231 to provide a limiting function by engaging with other structures on an inclined plane.

[0294] It should be understood that the first rotating block 222 mainly provides a rotating connection structure. The first rotating block 222 can also have other implementation structures, and the structures of the two can be the same or different; this application does not strictly limit this. The second guide member 233 mainly provides a guide groove to guide the movement direction of other structural members. This application can also achieve the guidance of the movement direction of structural members through other structures; this application does not strictly limit this. The second mating member 234 mainly provides a mating structure to cooperate with other structures. This application may not have a second mating member 234, or the cooperation may be achieved through other structures; this application does not strictly limit this.

[0295] Please see Figure 22 , Figure 22 yes Figure 4 The diagram shows the exploded structure of the first rotating shaft assembly 2 from another angle. Figure 22 The perspective is relatively Figure 4 The perspective is flipped left and right.

[0296] For example, the first support member 22 may have two first rotating blocks 222, located at the top and bottom ends of the first support member 22, respectively. The two first rotating blocks 222 are used to engage with the two first arcuate grooves 2414 of the first fixing frame 241, respectively. Similarly, the second support member 23 may have two second rotating blocks 232, located at the top and bottom ends of the second support member 23, respectively. The two second rotating blocks 232 are used to engage with the two second arcuate grooves 2424 of the second fixing frame 242, respectively. Understandably, the structures of the two first rotating blocks 222 of the first support member 22 and the two second rotating blocks 232 of the second support member 23 can be identical to simplify costs. This application uses the first rotating block 222 located at the top of the first support member 22 and the second rotating block 232 located at the top of the second support member 23 as examples for illustration.

[0297] Furthermore, in some other embodiments, the number of first rotating blocks 222 of the first support member 22 and / or the number of second rotating blocks 232 of the second support member 23 may also be one, to simplify the connection structure. Alternatively, the number of first rotating blocks 222 of the first support member 22 and / or the number of second rotating blocks 232 of the second support member 23 may also be two or more, to increase the connection strength between the first support member 22 and the first fixing frame 241 and / or between the second support member 23 and the second fixing frame 242. This application does not limit this.

[0298] For example, the first support member 22 may have two first guide members 223, which are spaced apart and whose guide grooves 2231 are opposite to each other, so that the sliding protrusions 2435 on both sides of the first connecting arm 243 are respectively installed in the guide grooves 2231 of the two first guide members 223. Similarly, the second support member 23 may have two second guide members 233, which are spaced apart and whose guide grooves 2331 are opposite to each other, so that the sliding protrusions 2445 on both sides of the second connecting arm 244 are respectively installed in the guide grooves 2331 of the two second guide members 233. Understandably, in some other embodiments, the number of first guide members 223 of the first support member 22 and / or the number of second guide members 233 of the second support member 23 may also be one, to simplify the connection structure. Alternatively, the number of first guides 223 of the first support member 22 and / or the number of second guides 233 of the second support member 23 may be two or more to increase the connection strength between the first support member 22 and the first connecting arm 243 and / or between the second support member 23 and the second connecting arm 244. This application does not limit this.

[0299] For example, the first mating part 224 of the first support member 22 is located in the middle of the first support plate 221 and is used to mate with the first mating space 2457 of the first swing arm 245. The second mating part 234 of the second support member 23 is located in the middle of the second support plate 231 and is used to mate with the second mating space 2467 of the second swing arm 246.

[0300] The following description, in conjunction with the accompanying drawings, will explain the connection structure between the first support member 22 and the first fixed frame 241, the first connecting arm 243 and the first swing arm 245, and between the second support member 23 and the second fixed frame 242, the second connecting arm 244 and the second swing arm 246.

[0301] Please refer to the following: Figure 23A and Figure 23B , Figure 23A yes Figure 4 The diagram shows a cross-sectional view of the first rotating shaft assembly 2 taken along line A4-A4. Figure 23B yes Figure 23A The diagram shows the structure in its first closed state. The cross-section along A4-A4 passes through the first rotating block 222 of the first support member 22, the first fixed frame 241, the main shaft 21, the second rotating block 232 of the second fixed frame 242, and the second support member 23. Figure 4 The position of A4-A4 in the text and Figure 6 and Figure 22 The positions of A4-A4 in the diagram are the same.

[0302] In some embodiments, the second arcuate arm 2222 of the first rotating block 222 of the first support member 22 is mounted on the first arcuate groove 2414 of the first fixed frame 241, and the first support member 22 is rotatably connected to the first fixed frame 241 via a virtual axis connection; that is, the first support member 22 is rotatably connected to the first fixed frame 241. The second arcuate arm 2322 of the second rotating block 232 of the second support member 23 is mounted on the first arcuate groove 2414 of the second fixed frame 242, and the second support member 23 is rotatably connected to the second fixed frame 242 via a virtual axis connection; that is, the second support member 23 is rotatably connected to the second fixed frame 242.

[0303] Please refer to the following: Figure 24A and Figure 24B , Figure 24A yes Figure 4 The diagram shows a cross-sectional view of the first rotating shaft assembly 2 taken along line A5-A5. Figure 24B yes Figure 24A The diagram shows the structure in its first closed state. The cross-section along A5-A5 passes through the first fixing frame 241, the first connecting arm 243, the first guide 223 of the first support 22, the main shaft 21, the second guide 233 of the second support 23, the second connecting arm 244, and the second fixing frame 242. Figure 4 The position of A5-A5 in the text and Figure 6 and Figure 22 The positions of A5-A5 in the diagram are the same.

[0304] In some embodiments, the first connecting arm 243 is slidably connected to the first support member 22. The sliding protrusion 2435 of the first connecting arm 243 is mounted in the guide groove 2231 of the first guide member 223 and can slide within the guide groove 2231 along its extending direction. This allows the first connecting arm 243 to slidably connect to the first guide member 223 and slide along the extending direction of the guide groove 2231, thereby controlling the movement trajectory of the first support member 22 through the guide groove 2231 when the first support member 22 slides relative to the first connecting arm 243. In other embodiments, the first connecting arm 243 may also be slidably connected to the first guide member 223 in other ways, which is not limited in this application.

[0305] The second connecting arm 244 is slidably connected to the second support member 23. The sliding protrusion 2445 of the second connecting arm 244 is mounted in the guide groove 2331 of the second guide member 233 and can slide within the guide groove 2331 along its extending direction. This allows the second connecting arm 244 to slidably connect to the second guide member 233 and slide along the extending direction of the guide groove 2331, thereby controlling the movement trajectory of the second support member 23 through the guide groove 2331 when the second support member 23 slides relative to the second connecting arm 244. In other embodiments, the second connecting arm 244 may also be slidably connected to the second guide member 233 in other ways; this application does not limit this to any particular method.

[0306] Please refer to the following: Figures 24A to 24B In this embodiment, the first support member 22 is slidably connected to the first connecting arm 243 and rotatably connected to the first fixing frame 241. The first connecting arm 243 and the first fixing frame 241 together define the movement trajectory of the first support member 22. The second support member 23 is slidably connected to the second connecting arm 244 and rotatably connected to the second fixing frame 242. The second connecting arm 244 and the second fixing frame 242 together define the movement trajectory of the second support member 23.

[0307] Specifically, during the unfolding and folding of the first pivot assembly 2, the first support member 22 moves relative to the main shaft 21 along with the first connecting arm 243 and the first fixing frame 241, and the first support member 22 also moves relative to the first connecting arm 243 and the first fixing frame 241; the second support member 23 moves relative to the main shaft 21 along with the second connecting arm 244 and the second fixing frame 242, and the second support member 23 also moves relative to the second connecting arm 244 and the second fixing frame 242.

[0308] When the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are unfolded from the first closed state to the open state via the first rotating shaft assembly 2, as follows: Figure 24A and Figure 24B As shown, the second arc-shaped arm 2222 of the first support member 22 rotates out of the first arc-shaped groove 2414 of the first fixing frame 241, and the sliding protrusion 2435 of the first connecting arm 243 slides to the far-axis end of the guide groove 2231 of the first support member 22, and the first support member 22 is flattened relative to the main shaft 21; the second arc-shaped arm 2322 of the second support member 23 rotates out of the first arc-shaped groove 2414 of the second fixing frame 242, and the sliding protrusion 2445 of the second connecting arm 244 slides to the far-axis end of the guide groove 2331 of the second support member 23, and the second support member 23 is flattened relative to the main shaft 21.

[0309] While the second housing 12 and the third housing 13 are in the open state, during the process of the first housing 11 and the second housing 12 folding relative to each other from the open state to the first closed state via the first pivot assembly 2, such as Figure 24A as well as Figure 24B As shown, the second arc-shaped arm 2222 of the first support member 22 rotates into the first arc-shaped groove 2414 of the first fixing frame 241, the lower surface of the first support member 22 is close to the first fixing frame 241, the sliding protrusion 2435 of the first connecting arm 243 slides to the near-axial end of the guide groove 2231 of the first support member 22, and the first support member 22 bends relative to the main shaft 21; the second arc-shaped arm 2322 of the second support member 23 rotates into the first arc-shaped groove 2414 of the second fixing frame 242, the lower surface of the second support member 23 is close to the second fixing frame 242, the sliding protrusion 2445 of the second connecting arm 244 slides to the near-axial end of the guide groove 2331 of the second support member 23, and the second support member 23 bends relative to the main shaft 21.

[0310] The first support member 22 has a first end 22a away from the main shaft 21 and a second end 22b close to the main shaft 21, and the second support member 23 has a first end away from the main shaft 21 and a second end close to the main shaft 21. In the first closed state, the distance between the first end 22a of the first support member 22 and the first end of the second support member 23 is less than the distance between the second end 22b of the first support member 22 and the second end of the second support member 23.

[0311] Therefore, in the first closed state, the first support member 22, the main shaft 21, and the second support member 23 of the first rotating shaft assembly 2 together form a teardrop-shaped screen-accommodating space 210. Furthermore, at certain locations on the first rotating shaft assembly 2, the structural components of the connecting component 24 of the first rotating shaft assembly 2 can also cooperate with the first support member 22, the main shaft 21, and the second support member 23 to jointly form a more complete teardrop-shaped screen-accommodating space 210.

[0312] Please refer to the following: Figure 25A and Figure 25B , Figure 25A yes Figure 4 The diagram shows a cross-sectional view of the first rotating shaft assembly 2 taken along line A6-A6. Figure 25B yes Figure 25A The diagram shows the structure in its first closed state. The cross-section along A6-A6 passes through the first support member 22, the first fixing frame 241, the first swing arm 245, the main shaft 21, the second swing arm 246, the second fixing frame 242, and the second support member 23. Figure 4 The position of A6-A6 in the middle and Figure 6 and Figure 22 The positions of A6-A6 in the diagram are the same.

[0313] For example, the first mating member 224 of the first support member 22 is installed in the first mating space 2457 of the first swing arm 245 to structurally engage with the first swing arm 245, thereby providing support for the first support member 22. The second mating member 234 of the second support member 23 is installed in the second mating space 2467 of the second swing arm 246 to structurally engage with the second swing arm 246, thereby providing support for the second support member 23.

[0314] For example, in the open state, the lower surface of the first mating member 224 of the first support member 22 is inclined and contacts or abuts the mating surface 2458 of the first swing arm 245. The lower surface of the first mating member 224 engages with the inclined surface of the mating surface 2458 of the first swing arm 245, so that the first swing arm 245 can provide support for the first support member 22, thereby keeping the first support member 22 in a flat state. The lower surface of the second mating member 234 of the second support member 23 is inclined and contacts or abuts the mating surface 2468 of the second swing arm 246. The lower surface of the second mating member 234 engages with the inclined surface of the mating surface 2468 of the second swing arm 246, so that the second swing arm 246 can provide support for the second support member 23, thereby keeping the second support member 23 in a flat state.

[0315] When the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are folded relative to each other from the open state to the first closed state via the first pivot assembly 2, the first support member 22 moves toward the first swing arm 245, thereby driving the first mating member 224 of the first support member 22 to move within the first mating space 2457. The lower surface of the first support member 22 is close to the first swing arm 245. The inner side of the first mating member 224 is in contact with the sidewall of the first mating space 2457 to increase the connection strength between the first swing arm 245 and the first support member 22. The surface of the first mating member 224 facing the first support member 22 is the "inner side" of the first mating member 224.

[0316] The second support member 23 moves toward the second swing arm 246, thereby causing the second mating member 234 of the second support member 23 to move within the second mating space 2467. The lower surface of the second support member 23 is close to the second swing arm 246. The inner surface of the second mating member 234 is in contact with the sidewall of the second mating space 2467 to increase the connection strength between the second swing arm 246 and the second support member 23. The surface of the second mating member 234 facing the second support member 23 is the "inner surface" of the second mating member 234.

[0317] Furthermore, when the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are folded relative to each other from the open state to the first closed state via the first pivot assembly 2, the sliding end 2462 of the second swing arm 246 slides relative to the second fixed frame 242 to leave a clearance space 2460. The second support member 23 may also be provided with a clearance notch that connects to the clearance space 2460 to expand the clearance space 2460.

[0318] The implementation structure of the second rotating shaft assembly 3 will be illustrated below with reference to the accompanying drawings.

[0319] Please refer to the following: Figure 26 and Figure 27 , Figure 26 yes Figure 2 The diagram shows the structure of the second rotating shaft assembly 3 in the open state. Figure 27 yes Figure 26 The diagram shows the structure of the second rotating shaft assembly 3 in the second closed state.

[0320] In some embodiments, the second rotating shaft assembly 3 includes a main shaft 31 and a connecting assembly 34. The main shaft 31 and the connecting assembly 34 together form the main motion mechanism of the second rotating shaft assembly 3. In this embodiment, the two ends near the main shaft 31 are defined as the top end and the bottom end, respectively, and the direction from the top end to the bottom end of the main shaft 31 is the extension direction of the main shaft 31; the orientation near the top end of the main shaft 31 is defined as "top," and the orientation near the bottom end of the main shaft 31 is defined as "bottom."

[0321] For example, the connecting assembly 34 is connected to the main shaft 31 and is deformable, unfolding or folding relative to the main shaft 31. The connecting assembly 34 is also connected to the second housing 12 and the third housing 13 (see [reference]). Figure 2 When the connecting component 34 deforms relative to the main shaft 31, the second housing 12 and the third housing 13 deform relative to the main shaft 31 to unfold or fold relative to each other.

[0322] In this embodiment, the second rotating shaft assembly 3 has one connecting component 34 as an example. It should be understood that in some other embodiments, the second rotating shaft assembly 3 may have more connecting components 34. The connecting components 34 may be split or merged. The structures of multiple connecting components 34 may be the same or different. This embodiment does not strictly limit this.

[0323] The structure of each component of the second rotating shaft assembly 3 will be described below with reference to the accompanying drawings. First, the structure of the main shaft 31 will be described.

[0324] Please refer to the following: Figure 28A as well as Figure 28B , Figure 28A yes Figure 26The exploded view of the second rotating shaft assembly 3 is shown. Figure 28B yes Figure 28A A schematic diagram of the structure shown from another angle. Figure 28B Relative perspective Figure 28A The perspective is flipped left and right.

[0325] In some embodiments, such as Figure 28A As shown, the spindle 31 includes a main support plate 311 and a cover 312. The cover 312 is fixed to the main support plate 311, and a mounting space for mounting the connecting assembly 34 is formed between the cover 312 and the main support plate 311. It should be understood that in some other embodiments, the spindle 31 may also have more covers, and the number, structure, position, etc. of the covers are all set corresponding to the connecting assembly 34.

[0326] For example, such as Figure 28B As shown, the main support plate 311 has multiple mating structures on its lower side facing the cover 312. These mating structures mate with the cover 312 to form multiple mounting spaces for installing the connecting assembly 34. The mating structures may include grooves, openings, protrusions, etc. For example, the main support plate 311 may include a first arc surface 3111 and a first wavy surface 3112. The first arc surface 3111 may be a concave arc surface. The first wavy surface 3112 may include multiple regions arranged along the extension direction of the main shaft 31, each region including multiple concave arc surfaces, and the arrangement direction of the multiple arc surfaces is perpendicular to the extension direction of the main shaft 31.

[0327] The main support plate 311 may be provided with multiple clearance notches 3113 and multiple fastening holes 3114. The clearance notches 3113 are located on both sides of the main support plate 311, and are used to avoid obstructing the structural components of the connecting assembly 34 during the movement of the second rotating shaft assembly 3. The fastening holes 3114 allow fasteners to pass through. The clearance notches 3113 and the fastening holes 3114 are distributed at the bottom, middle, and top of the main support plate 311.

[0328] For example, such as Figure 28AAs shown, the cover 312 can generally be a cover structure with a concave center and raised sides. The sides of the cover 312 may have clearance notches 3121. Multiple mating structures are provided on the upper side of the cover 312 facing the main support plate 311. These mating structures are used to mate with the main support plate 311 to form multiple installation spaces for installing the connecting assembly 34. The multiple mating structures may include grooves, openings, protrusions, etc. For example, the cover 312 may include a second arc surface 3122 and a second wave surface 3123. The second arc surface 3122 is a concave arc surface; the second wave surface 3123 includes multiple regions, each region including multiple concave arc surfaces. The second arc surface 3122 can mate with the first arc surface 3111 of the main support plate 311, and the second wave surface 3123 can mate with the first wave surface 3112 of the main support plate 311 to form installation spaces.

[0329] The cover 312 can be fixedly connected to the main support plate 311 by multiple fasteners. The cover 312 may also be provided with multiple fastening holes 3124. The multiple fastening holes 3124 of the cover 312 are aligned with some of the fastening holes 3114 of the main support plate 311, and multiple fasteners extend into the fastening holes 3124 of the cover 312 and the fastening holes 3114 of the main support plate 311 to lock the cover 312 and the main support plate 311.

[0330] In this embodiment, the spindle 31 has a cover 312 as an example. It should be understood that in some other embodiments, the spindle 31 may have more covers. The structure of the multiple covers and the connection structure between the multiple covers and the main support plate 311 may be the same or different. This embodiment does not strictly limit this.

[0331] Next, the structure of the connecting component 34 will be described.

[0332] In some embodiments, such as Figure 28A As shown, the connecting assembly 34 includes a first fixed frame 341, a second fixed frame 342, a first connecting arm 343, a second connecting arm 344, a first swing arm 345, a second swing arm 346, and a damping assembly 347. The two ends of the first connecting arm 343 are connected to the main shaft 31 and the first fixed frame 341, respectively. The two ends of the first swing arm 345 are connected to the main shaft 31 and the first fixed frame 341, respectively. The two ends of the second connecting arm 344 are connected to the main shaft 31 and the second fixed frame 342, respectively. The two ends of the second swing arm 346 are connected to the main shaft 31 and the second fixed frame 342, respectively. The damping assembly 347 is mounted on the main shaft 31 and connects the first swing arm 345 and the second swing arm 346. The damping assembly 347 provides motion damping force during the relative rotation of the first swing arm 345 and the second swing arm 346.

[0333] Understandably, the connecting component 34 may also be without the damping component 347, and this application does not limit this.

[0334] Among them, such as Figure 28A and Figure 28B As shown, the first fixing bracket 341 has a first mounting groove 3411, a first sliding groove 3412, a first locking block 3413, and a plurality of fastening holes 3414.

[0335] For example, the opening of the first mounting groove 3411 is located on the upper surface of the first fixing frame 341, for fixing the structure connected to the first fixing frame 341. The groove wall of the first mounting groove 3411 may be provided with fastening holes 3414.

[0336] For example, the first fixing frame 341 also includes an installation space that extends through the left and right end faces of the first fixing frame 341. The first sliding groove 3412 is disposed on the side wall of the installation space, and the structure installed in the installation space is slidably connected to the first sliding groove 3412.

[0337] For example, the first sliding groove 3412 has two oppositely arranged sidewalls, which are recessed to jointly form the guide space of the first sliding groove 3412. That is, the sidewalls of the first sliding groove 3412 may have recessed guide spaces to guide the sliding direction of the structural component installed in the first sliding groove 3412, making the relative sliding action between the first fixing bracket 341 and the corresponding structural component easier to achieve and with higher control precision.

[0338] For example, the first fixing bracket 341 may further include a first locking block 3413, which protrudes and is used to engage with the second housing 12. The first locking block 3413 may be provided with a fastening hole 3414. In this application, the first fixing bracket 341 can be fixed to the second housing 12 by fasteners passing through the fastening hole 3414.

[0339] The second fixing bracket 342 has a second mounting groove 3421, a second sliding groove 3422, a second locking block 3423, and a plurality of fastening holes 3424.

[0340] For example, the opening of the second mounting groove 3421 is located on the upper surface of the second fixing bracket 342, for fixing the structure connected to the second fixing bracket 342. The groove wall of the second mounting groove 3421 may be provided with fastening holes 3424.

[0341] For example, the second fixing frame 342 also includes an installation space that extends through the left and right end faces of the second fixing frame 342. The second sliding groove 3422 is disposed on the side wall of the installation space, and the structure installed in the installation space is slidably connected to the second sliding groove 3422.

[0342] For example, the second sliding groove 3422 has two oppositely arranged sidewalls, which are recessed to jointly form a guide space for the second sliding groove 3422. That is, the sidewalls of the second sliding groove 3422 may have recessed guide spaces to guide the sliding direction of the structural component installed in the second sliding groove 3422, making the relative sliding action between the second fixing bracket 342 and the corresponding structural component easier to achieve and with higher control precision.

[0343] For example, the second fixing bracket 342 may further include a second locking block 3423, which protrudes and is used to engage with the second housing 12. The second locking block 3423 may have a fastening hole 3424. In this application, the second fixing bracket 342 can be fixed to the second housing 12 by fasteners passing through the fastening hole 3424.

[0344] In some embodiments, the shape of the first fixing frame 341 may be the same as that of the second fixing frame 342, so as to use the same material, save on the types of materials for the second rotating shaft assembly 3, and reduce the cost of the second rotating shaft assembly 3. In other embodiments, the shape of the first fixing frame 341 may be different from that of the second fixing frame 342, and the embodiments of this application do not strictly limit this.

[0345] In some embodiments, such as Figure 28A and Figure 28B As shown, the first connecting arm 343 includes a fixed end 3431 and a rotating end 3432. For example, the fixed end 3431 of the first connecting arm 343 is provided with a fastening hole 3433; the rotating end 3432 of the first connecting arm 343 is an arc-shaped arm.

[0346] The fixed end 3431 of the first connecting arm 343 is fixedly installed in the first mounting groove 3411 of the first fixing frame 341. Fasteners can pass through the fastening holes 3414 of the first mounting groove 3411 and the fastening holes 3433 of the fixed end 3431 of the first connecting arm 343 to fix the first connecting arm 343 to the first fixing frame 341. Understandably, in some other embodiments, the fixed end 3431 of the first connecting arm 343 can also be fixedly connected to the first fixing frame 341 by means of welding or adhesive bonding; this application does not limit this to such methods.

[0347] The first connecting arm 343 can be a one-piece molded structural component to achieve high structural strength. For example, the first connecting arm 343 can be formed using computer numerical control (CNC) milling. In other embodiments, the first connecting arm 343 can also be formed using metal injection molding; this application does not strictly limit this method.

[0348] In some embodiments, the second connecting arm 344 includes a fixed end 3441 and a rotating end 3442. For example, the fixed end 3441 of the second connecting arm 344 is provided with a fastening hole 3443; the rotating end 3442 of the second connecting arm 344 is an arc-shaped arm.

[0349] The fixed end 3441 of the second connecting arm 344 is fixedly installed in the second mounting groove 3421 of the second fixing frame 342. Fasteners can pass through the fastening holes 3424 of the second mounting groove 3421 and the fastening holes 3443 of the fixed end 3441 of the second connecting arm 344 to fix the second connecting arm 344 to the second fixing frame 342. Understandably, in some other embodiments, the fixed end 3441 of the second connecting arm 344 can also be fixedly connected to the second fixing frame 342 by means of welding or adhesive bonding; this application does not limit this to such methods.

[0350] The second connecting arm 344 can be a one-piece molded structural component to achieve high structural strength. For example, the second connecting arm 344 can be formed using computer numerical control (CNC) milling. In other embodiments, the second connecting arm 344 can also be formed using metal injection molding; this application does not strictly limit this method.

[0351] In some embodiments, the shape of the first connecting arm 343 may be the same as that of the second connecting arm 344, so as to use the same material, thereby saving the types of materials for the second rotating shaft assembly 3 and reducing the cost of the second rotating shaft assembly 3. In other embodiments, the shape of the first connecting arm 343 may be different from that of the second connecting arm 344, and the embodiments of this application do not strictly limit this.

[0352] In some embodiments, such as Figure 28A and Figure 28B As shown, the first swing arm 345 includes a rotating end 3451 and a sliding end 3452. The rotating end 3451 of the first swing arm 345 may have a structure for cooperating with the damping assembly 347. The structure of the rotating end 3451 of the first swing arm 345 can be referenced to the rotating end 2451 of the first swing arm 245 of the first rotating shaft assembly 2, and will not be described in detail here. The sliding end 3452 of the first swing arm 345 includes sliding blocks 3453 located on both sides of the sliding end.

[0353] The first swing arm 345 can be a one-piece molded structural component to achieve high structural strength. For example, the first swing arm 345 can be formed using metal injection molding or other processes; this embodiment does not strictly limit the specific process.

[0354] In some embodiments, the second swing arm 346 includes a rotating end 3461 and a sliding end 3462. The rotating end 3461 of the second swing arm 346 may have a structure for cooperating with the damping assembly 347. The structure of the rotating end 3461 of the second swing arm 346 can be referenced to the rotating end 2461 of the second swing arm 246 of the first rotating shaft assembly 2, and will not be described in detail here. The sliding end 3462 of the second swing arm 346 includes sliding blocks 3463 located on both sides of the sliding end.

[0355] The second swing arm 346 can be a one-piece molded structural component to achieve high structural strength. For example, the second swing arm 346 can be formed using metal injection molding or other processes; this application does not strictly limit this process.

[0356] In some embodiments, the shape of the first swing arm 345 may be the same as that of the second swing arm 346, so as to use the same material, thereby saving the types of materials for the second rotating shaft assembly 3 and reducing the cost of the second rotating shaft assembly 3. In other embodiments, the shape of the first swing arm 345 may be different from that of the second swing arm 346, and the embodiments of this application do not strictly limit this.

[0357] In this application, the structure of the damping component 347 can refer to the structure of the damping component 247 of the first rotating shaft assembly 2, and the connection structure between the damping component 347 and the first swing arm 345 and the second swing arm 346 can refer to the connection structure between the damping component 247 and the first swing arm 245 and the second swing arm 246 of the first rotating shaft assembly 2. For example, the damping component 347 may also include multiple synchronous gears. The rotating end 3451 of the first swing arm 345 and the rotating end 3461 of the second swing arm 346 are connected through multiple synchronous gears. Therefore, the rotation angle of the rotating end 3451 of the first swing arm 345 and the rotation angle of the rotating end 3461 of the second swing arm 346 are the same in magnitude and opposite in direction, so that the rotation of the first swing arm 345 and the second swing arm 346 relative to the main shaft 31 remains synchronized, that is, they synchronously move closer to each other or further away from each other. In other words, the first swing arm 345 and the second swing arm 346 rotate synchronously relative to the main shaft 31 under the drive of the damping component 347.

[0358] In this application, the first fixing frame 341 and the second fixing frame 342 are respectively connected to both sides of the main shaft 31. The first fixing frame 341 moves with the first connecting arm 343 and the first swing arm 345, and the second fixing frame 342 moves with the second connecting arm 344 and the second swing arm 346 to achieve relative unfolding and relative folding. Figure 26As shown, during the process of the second rotating shaft assembly 3 unfolding from the first closed state to the open state, the first fixing frame 341 and the second fixing frame 342 unfold relative to each other. The first fixing frame 341 and the second fixing frame 342 are respectively located on both sides of the main shaft 31. The first fixing frame 341, the main shaft 31, and the second fixing frame 342 are used together to provide a flat support environment. Figure 5 As shown, during the process of the second rotating shaft assembly 3 folding from the open state to the first closed state, the first fixing frame 341 and the second fixing frame 342 fold relative to each other. The first fixing frame 341 and the second fixing frame 342 are located on the same side of the main shaft 31. The first fixing frame 341, the second fixing frame 342 and the main shaft 31 together form the screen-accommodating space 310.

[0359] See also Figure 29 , Figure 30A as well as Figure 30B , Figure 29 yes Figure 28A The diagram shows the assembly structure of the connecting component 34 and the bottom cover 312 of the spindle 31. Figure 30A yes Figure 26 The diagram shows a cross-sectional view of the assembly structure of the connecting component 34 and the spindle 31 taken along line B1-B1. Figure 30B yes Figure 30A The diagram shows the structure in the second closed state. The cross-section along B1-B1 passes through the first fixing frame 341, the first connecting arm 343, the main shaft 31, the second connecting arm 344, and the second fixing frame 342. Figure 26 The position of B1-B1 in the middle and Figure 29 The positions of B1-B1 in the diagram are the same.

[0360] In some embodiments, the fixed end 3431 of the first connecting arm 343 is fixedly connected to the first fixing frame 341, and the rotating end 3432 of the first connecting arm 343 is rotatably connected to the main shaft 31. The fixed end 3441 of the second connecting arm 344 is fixedly connected to the second fixing frame 342, and the rotating end 3442 of the second connecting arm 344 is rotatably connected to the main shaft 31.

[0361] The rotating end 3432 of the first connecting arm 343 is rotatably connected to the main shaft 31 via a virtual shaft connection. The rotating end 3442 of the second connecting arm 344 is also rotatably connected to the main shaft 31 via a virtual shaft connection.

[0362] It is understood that in some other embodiments, the rotating end 3432 of the first connecting arm 343 and / or the rotating end 3442 of the second connecting arm 344 can also be rotatably connected to the main shaft 31 through a solid shaft connection method. This application does not strictly limit this.

[0363] Please refer to the following: Figure 29 , Figure 31Aas well as Figure 31B , Figure 31A yes Figure 26 The diagram shows a cross-sectional view of the assembly structure of the connecting component 34 and the spindle 31 taken along line B2-B2. Figure 31B yes Figure 31A The diagram shows the structure in the second closed state. The cross-section along B2-B2 passes through the first fixed frame 341, the first swing arm 345, the main shaft 31, the second swing arm 346, and the second fixed frame 342. Figure 26 The position of B2-B2 in the middle and Figure 29 The positions of B2-B2 in the diagram are the same.

[0364] In some embodiments, the rotating end 3451 of the first swing arm 345, the rotating end 3461 of the second swing arm 346, and the damping assembly 347 are all mounted on the main shaft 31. In this embodiment, the connection structure of the first swing arm 345, the second swing arm 346, the damping assembly 347, and the main shaft 31 can refer to the connection structure of the first swing arm 245, the second swing arm 246, the damping assembly 247, and the main shaft 21 of the first rotating shaft assembly 2, and will not be described again here.

[0365] Please refer to the following: Figure 29 , Figure 32A as well as Figure 32B , Figure 32A yes Figure 26 The diagram shows a cross-sectional view of the assembly structure of the connecting component 34 and the spindle 31 taken along line B3-B3. Figure 32B yes Figure 32A The diagram shows the structure in the second closed state. The cross-section along B3-B3 passes through the first fixed frame 341, the first swing arm 345, the main shaft 31, the second swing arm 346, and the second fixed frame 342. Figure 26 The position of B3-B3 in the middle and Figure 29 The positions of B3-B3 in the diagram are the same.

[0366] In some embodiments, the sliding end 3452 of the first swing arm 345 is slidably mounted in the first sliding groove 3412 of the first fixed frame 341 to slidably connect to the first fixed frame 341. The sliding block 3453 of the sliding end 3452 of the first swing arm 345 is partially located in the guide space of the first sliding groove 3412, and the two cooperate to guide the sliding direction of the sliding end 3452 of the first swing arm 345 relative to the first fixed frame 341. The sliding end 3462 of the second swing arm 346 is slidably mounted in the second sliding groove 3422 of the second fixed frame 342 to slidably connect to the second fixed frame 342. The sliding block 3463 of the sliding end 3462 of the second swing arm 346 is partially located in the guide space of the second sliding groove 3422, and the two cooperate to guide the sliding direction of the sliding end 3462 of the second swing arm 346 relative to the second fixed frame 342.

[0367] The following provides an exemplary description of the structure of the connecting device 4, and the connection structure between the connecting device 4 and the first rotating shaft assembly 2, the second housing 12, and the second rotating shaft assembly 3.

[0368] Please refer to the following: Figure 33A and Figure 33B , Figure 33A yes Figure 2 A partially exploded view of some structures of the electronic device 1000 shown. Figure 33B yes Figure 33A A partial breakdown diagram.

[0369] For example, the connecting device 4 includes a connector 41 and a drive member 42. The connector 41 includes a first end 411 and a second end 412. The first end 411 of the connector 41 is close to the first rotating shaft assembly 2, and the second end 412 of the connector 41 is close to the second rotating shaft assembly 3. When the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are in the open state, the connector 41 can prevent the second rotating shaft assembly 3 from moving, thereby locking the second rotating shaft assembly 3 and preventing the second housing 12 and the third housing 13 from folding relative to the second rotating shaft assembly 3.

[0370] In some embodiments, at least one of the connector 41, the first pivot assembly 2, the second pivot assembly 3, or the second housing 12 is provided with a drive member 42. When the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are folded relative to each other through the first pivot assembly 2 to a first closed state, the drive member 42 drives the second end 412 of the connector 41 to move away from the second pivot assembly 3, thereby enabling the second housing 12 and the third housing 13 to fold relative to the second pivot assembly 3. When the first housing 11 and the second housing 12 are in the first closed state, the second housing 12 and the third housing 13 can move relative to the second pivot assembly 3. The connector 41 controls the movement of the second pivot assembly 3, causing the electronic device 1000 to fold in a certain sequence, thereby avoiding pressure or pulling on the first pivot assembly 2 and the second pivot assembly 3 and damaging their structure, resulting in a long service life and high reliability for the first pivot assembly 2 and the second pivot assembly 3.

[0371] In some other embodiments, when the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are unfolded from the first closed state to the open state through the first rotating shaft assembly 2, the driving member 42 can also be used to drive the second end 412 of the connecting member 41 to move toward the direction close to the second rotating shaft assembly 3.

[0372] In some embodiments, the connector 41 can be slidably connected to the second housing 12. For example, the second housing 12 is provided with a sliding groove 121, which extends to the end faces of the left and right sides of the second housing 12. The connector 41 is located in the sliding groove 121 of the second housing 12 and can slide along the sliding groove 121, thereby being slidably connected to the second housing 12 through the sliding groove 121. In other embodiments, the second housing 12 may also be provided with a through hole (not shown), the openings at both ends of which can be located on the end faces of the left and right sides of the second housing 12, respectively. The connector 41 is located in the through hole of the second housing 12 and can slide along the through hole, thereby being slidably connected to the second housing 12 through the through hole. Furthermore, the connector 41 can also be slidably connected to the second housing 12 through other structures, which are not limited in this application.

[0373] Please refer to the following: Figures 33B to 35B , Figure 33C yes Figure 33A The diagram shows the assembly of the structure. Figure 33D yes Figure 33C An internal schematic diagram of the structure shown; Figure 34A yes Figure 33C The diagram shows the structure in its first closed state. Figure 34B yes Figure 34A An internal schematic diagram of the structure shown; Figure 35A yes Figure 33CThe diagram shows the structure in its second closed state. Figure 35B yes Figure 35A A schematic diagram of the internal structure shown.

[0374] For example, the connection device 4 may include a connector 41, that is, the electronic device 1000 includes a connector 41, the connector 41 having a first end 411 and a second end 412 disposed opposite to each other. The first end 411 of the connector 41 is close to the first rotating shaft assembly 2, and the second end 412 of the connector 41 is close to the second rotating shaft assembly 3.

[0375] For example, please refer to the following: Figures 33B to 34B ,as well as Figures 36A to 36C , Figure 36A yes Figure 33B A partial structural schematic diagram of the housing device 100 shown in the figure. Figure 36B yes Figure 36A This diagram shows a portion of the structure in its first closed state. Figure 36C yes Figure 36A The diagram shows the structure in its first closed state. Figure 36A The structure of the first swing arm 245, the damping assembly 247, the second swing arm 246, the second fixing frame 242, and the first end 411 of the connector 41 is shown.

[0376] like Figure 33B , Figure 33D and Figure 36A As shown, when the first housing 11 and the second housing 12 are in the open state, and the second housing 12 and the third housing 13 are in the open state, the first end 411 of the connector 41 approaches or abuts the sliding end 2462 of the second swing arm 246 of the first rotating shaft assembly 2.

[0377] The first swing arm 245 and the second swing arm 246 rotate synchronously under the drive of the damping assembly 247, so that the first housing 11 and the second housing 12 fold from the open state to the first closed state. Furthermore, the sliding end 2462 of the second swing arm 246 is slidably mounted in the second sliding groove 2423 of the second fixed frame 242. For the specific installation method of the sliding end 2462 of the second swing arm 246 and the second sliding groove 2423 of the second fixed frame 242, please refer to [reference needed]. Figure 19A The sliding connection structure between the sliding end 2462 of the second swing arm 246 and the second fixed frame 242 is not described in detail here. The second fixed frame 242 can have two second sliding grooves 2423, which are spaced apart. The upper and lower sides of the sliding end 2462 of the second swing arm 246 can be slidably connected to the two second sliding grooves 2423 respectively.

[0378] like Figure 34A , Figure 34Band Figure 36B As shown, when the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are folded relative to each other from the open state to the first closed state through the first pivot assembly 2, the first swing arm 245 and the second swing arm 246 of the first pivot assembly 2 are folded relative to each other, and the sliding end 2462 of the second swing arm 246 of the first pivot assembly 2 moves away from the second housing 12, forming an avoidance space 2460 between the sliding end 2462 and the second housing 12.

[0379] like Figure 34A , Figure 34B and Figure 36C As shown, when the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are folded relative to each other from the open state to the first closed state through the first pivot assembly 2, the second end 412 of the connector 41 moves away from the second pivot assembly 3, and the first end 411 of the connector 41 enters the clearance space 2460.

[0380] Please refer to the following: Figure 36D and Figure 36E , Figure 36D yes Figure 33B This is a schematic diagram of the structure of the housing device 100 shown in the first closed state. Figure 36E yes Figure 36D A partially exploded diagram of the structure shown. Figure 36D The structure of the first swing arm 245, the damping assembly 247, the second swing arm 246, the second fixing frame 242, the first end 411 of the connector 41, and the second support member 23 are shown.

[0381] For example, the second support member 23 may be provided with a clearance notch 235, at least part of which may be disposed opposite to the area between the two second sliding grooves 2423 of the second fixing frame 242, for clearance of the first end 411 of the connector 41.

[0382] Please see Figure 36F , Figure 36F yes Figure 33B A partial structural schematic diagram of the housing device 100 shown in the figure. Figure 36F The structure of the second end 412 of the connector 41 and the first fixing frame 341 of the second rotating shaft assembly 3 is shown.

[0383] The first fixing frame 341 of the second rotating shaft assembly 3 is provided with a through hole 3415. The second end 412 of the connector 41 can pass through the first fixing frame 341 via the through hole 3415.

[0384] Please refer to the following: Figure 36F and Figure 36G , Figure 36Gyes Figure 33B A partial structural schematic diagram of the housing device 100 shown in the figure. Figure 36G The diagram illustrates the structure of the second end 412 of the connector 41, the first fixing frame 341 of the second rotating shaft assembly 3, and the main shaft 31.

[0385] The main shaft 31 of the second rotating shaft assembly 3 may be provided with a groove 313, the opening of which faces the through hole 3415 of the first fixing frame 341. For example, at least a portion of the opening of the groove 313 is positioned directly opposite the through hole 3415 of the first fixing frame 341. The second end 412 of the connector 41 can pass through the through hole 3415 through the first fixing frame 341 and be inserted into the groove 313 to prevent relative movement between the main shaft 31 and the first fixing frame 341.

[0386] Please refer to the following: Figure 36G and Figure 36H , Figure 36H yes Figure 36G A partially exploded diagram of the structure shown.

[0387] For example, such as Figure 36H As shown, the spindle 31 includes a main support plate 311 and a cover 312. The cover 312 is fixed to the main support plate 311, and a mounting space for mounting connecting components is formed between the cover 312 and the main support plate 311. The structure of the main support plate 311 and the cover 312 of the spindle 31, as well as the connection structure between the components, can be found in [reference needed]. Figure 28A and Figure 28B The structure of the main support plate 311 and the cover 312, as well as the connection structure between the components, will not be described in detail here.

[0388] The main support plate 311 of the spindle 31 may have a groove, with one end of the groove extending to the lower surface of the main support plate 311; the cover 312 may also have a groove, with one end of the groove extending to the upper surface of the cover 312. The grooves of the main support plate 311 and the cover 312 are arranged opposite to each other and combine to form a groove 313. For example, the grooves of the main support plate 311 and the cover 312 may be symmetrical structures, such as both being rectangular grooves or hemispherical grooves. In other embodiments, the grooves of the main support plate 311 and the cover 312 may also be asymmetrical structures, for example, the groove of the main support plate 311 may be a rectangular groove, and the groove of the cover 312 may be a hemispherical groove.

[0389] Please refer to the following: Figures 36I to 36M , Figure 36I yes Figure 2 The schematic diagram of the housing device 100 shown in some embodiments is shown. Figure 36J yes Figure 36IThe diagram shown is a schematic representation of a portion of the cross-sectional structure cut along point CC in the first embodiment. Figure 36K yes Figure 36I The diagram shows another section of the structure cut along point CC in the first embodiment. Figure 36L yes Figure 36J The diagram shows the structure in its first closed state. Figure 36M yes Figure 36K The diagram shows the structure in its first closed state. Figure 36J The cross-sectional structure cut open at this point passes through the first housing 11, the first rotating shaft assembly 2, the second housing 12, and the connecting device 4. Figure 36K The cross-sectional structure is cut open and passes through the second housing 12, the second rotating shaft assembly 3, the third housing 13, and the connecting device 4.

[0390] In this application, during the assembly of the electronic device 1000, the first housing 11 and the second housing 12 can be fixedly connected to both sides of the first rotating shaft assembly 2, and the second housing 12 and the third housing 13 can be fixedly connected to both sides of the second rotating shaft assembly 3. Specifically, the first fixing frame 241 of the first rotating shaft assembly 2 is fixedly connected to the first housing 11, and this fixing can be achieved through fasteners or other methods; the second fixing frame 242 of the first rotating shaft assembly 2 can be fixedly connected to the second housing 12, and this fixing can be achieved through fasteners or other methods; the first fixing frame 341 of the second rotating shaft assembly 3 is fixedly connected to the second housing 12, and this fixing can be achieved through fasteners or other methods; the second fixing frame 342 of the second rotating shaft assembly 3 can be fixedly connected to the third housing 13, and this fixing can be achieved through fasteners or other methods. Figure 36J and Figure 36L As shown, the first housing 11 and the second housing 12 can be relatively unfolded and relatively folded by the deformation of the first rotating shaft assembly 2, so as to switch between an open state and a first closed state; as Figure 36K and Figure 36M As shown, the second housing 12 and the third housing 13 can be relatively unfolded and relatively folded by the deformation of the second pivot assembly 3, so as to switch between the first closed state and the second closed state.

[0391] When the first housing 11 and the second housing 12 are in the open state, and the second housing 12 and the third housing 13 are in the open state, as follows: Figure 36A and Figure 36J As shown, the first swing arm 245 and the second swing arm 246 of the first rotating shaft assembly 2 are flattened relative to the main shaft 21, and the first end 411 of the connecting member 41 abuts against the sliding end 2462 of the second swing arm 246 of the first rotating shaft assembly 2. Figure 36A and Figure 36KAs shown, the second end 412 of the connector 41 passes through the first fixing frame 341 of the second rotating shaft assembly 3 and is engaged with the main shaft 31 to prevent relative movement between the first fixing frame 341 and the main shaft 31 of the second rotating shaft assembly 3, and to prevent movement of the second rotating shaft assembly 3, so that the second rotating shaft assembly 3 is in a locked state, preventing the second housing 12 and the third housing 13 from folding relative to the second rotating shaft assembly 3.

[0392] In this embodiment, the first swing arm 345 and the second swing arm 346 rotate synchronously relative to the main shaft 31 under the drive of the damping assembly 347. When the second end 412 of the connector 41 prevents the relative movement between the first fixing frame 341 and the main shaft 31 of the second rotating shaft assembly 3, it prevents the second swing arm 346 from rotating relative to the main shaft 31, and further prevents the second fixing frame 342 and the third housing 13 from rotating relative to the main shaft 31, that is, it prevents the movement of the second rotating shaft assembly 3 and prevents the second housing 12 and the third housing 13 from folding relative to the second rotating shaft assembly 3.

[0393] like Figure 36A , Figure 36B , Figure 36J and Figure 36L As shown, when the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are folded relative to each other from the open state to the first closed state via the first rotating shaft assembly 2, the first swing arm 245 and the second swing arm 246 rotate synchronously relative to the main shaft 21, and the sliding end 2462 of the second swing arm 246 slides away from the second housing 12 relative to the second fixed frame 242, thereby leaving a clearance space 2460 between the sliding end 2462 of the second swing arm 246 and the second housing 12. The first end 411 of the connector 41 moves away from the second housing 12 and enters the clearance space 2460.

[0394] like Figure 36K and Figure 36M As shown, when the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are folded relative to each other from the open state to the first closed state through the first rotating shaft assembly 2, the driving member 42 pushes the connecting member 41 to move away from the second rotating shaft assembly 3. The second end 412 of the connecting member 41 moves away from the second housing 12 along with the first end 411 of the connecting member 41. The second end 412 of the connecting member 41 moves away from the second rotating shaft assembly 3.

[0395] like Figure 36M As shown, when the first housing 11 and the second housing 12 are in the first closed state, there is a distance between the second end 412 of the connector 41 and the main shaft 31, and the first fixing frame 341 of the second rotating shaft assembly 3 can move relative to the main shaft 31, that is, the second housing 12 and the third housing 13 can move relative to the second rotating shaft assembly 3.

[0396] In summary, with the second housing 12 and the third housing 13 in the open state, and the first housing 11 and the second housing 12 folding relative to each other from the open state to the first closed state via the first rotating shaft assembly 2, the first swing arm 245 and the second swing arm 246 of the first rotating shaft assembly 2 fold relative to the main shaft 21. The sliding end 2462 of the second swing arm 246 slides away from the second housing 12 relative to the second fixed frame 242, leaving a clearance space 2460 between the sliding end 2462 and the second fixed frame 242. The first end 411 of the connector 41 enters the clearance space 2460. The driving member 42 pushes the connector 41 to move away from the second rotating shaft assembly 3 and away from the main shaft 31.

[0397] In the opposite direction to the process where the first housing 11 and the second housing 12 are folded from the open state to the first closed state via the first rotating shaft assembly 2, the second housing 12 and the third housing 13 are in the open state. During the process where the first housing 11 and the second housing 12 are unfolded from the first closed state to the open state via the first rotating shaft assembly 2, the first swing arm 245 and the second swing arm 246 of the first rotating shaft assembly 2 are flattened relative to the main shaft 21. The sliding end 2462 of the second swing arm 246 slides relative to the second fixed frame 242 towards the second housing 12, contacts and pushes the connector 41 towards the second rotating shaft assembly 3. That is, the second end 412 of the connector 41 moves towards the second rotating shaft assembly 3, so that the second end 412 of the connector 41 passes through the first fixed frame 341 of the second rotating shaft assembly 3 and is inserted into the main shaft 31. That is, the second end 412 of the connector 41 is connected between the second housing 12 and the second rotating shaft assembly 3. For example, when the first housing 11 and the second housing 12 are in the first closed state, the sliding end 2462 of the second swing arm 246 can contact the connector 41, or there can be a distance between it and the connector 41. This application does not limit this.

[0398] For example, such as Figure 36J and Figure 36L As shown, the opening of the through hole 3415 of the first fixing bracket 341 faces the receiving groove 122 of the second housing 12. When the first housing 11 and the second housing 12 are in the open state, and the second housing 12 and the third housing 13 are in the open state, the second end 412 of the connector 41 passes through the through hole 3415 through the first fixing bracket 341 of the second rotating shaft assembly 3 and is inserted into the groove 313 to fix the first fixing bracket 341 and the main shaft 31 of the second rotating shaft assembly 3.

[0399] When the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are folded relative to each other from the open state to the first closed state through the first rotating shaft assembly 2, the second end 412 of the connector 41 moves away from the groove 313; when the first housing 11 and the second housing 12 are in the first closed state, the second end 412 of the connector 41 leaves the groove 313, and the main shaft 31 of the first fixing frame 341 and the second rotating shaft assembly 3 can move relative to each other.

[0400] Conversely, when the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are unfolded from the first closed state to the open state, the second end 412 of the connector 41 moves toward the groove 313. The second end 412 of the connector 41 can be inserted from the receiving groove 122 of the second housing 12 into the through hole 3415 of the first fixing frame 341, and through the through hole 3415 of the first fixing frame 341 into the groove 313 of the main shaft 31, so as to prevent the movement of the second rotating shaft assembly 3 and prevent the second housing 12 and the third housing 13 from folding relative to the second rotating shaft assembly 3.

[0401] For example, such as Figure 36D , Figure 36E and Figure 36L As shown, one side of the clearance notch 235 of the second support member 23 extends to the end face of the second support member 23 facing the second housing 12, so as to provide clearance space when the first end 411 of the connector 41 moves away from the second housing 12. When the first housing 11 and the second housing 12 are in the first closed state, the clearance notch 235 can communicate with the clearance space 2460 between the two second sliding grooves 2423 of the second fixing bracket 242 to expand the clearance space 2460 so as to allow clearance for the first end 411 of the connector 41.

[0402] For example, the first rotating shaft assembly 2 includes a first moving part 20, the second rotating shaft assembly 3 includes a second moving part 30, and the first end 411 of the connecting device 4 is connected to the first moving part 20 of the first rotating shaft assembly 2.

[0403] Please refer to the following: Figure 33D and Figure 34BWhen the first housing 11 and the second housing 12 are in the open state, and the second housing 12 and the third housing 13 are in the open state, the second end 412 of the connector 41 is connected between the second housing 12 and the second moving member 30 of the second pivot assembly 3 to prevent the second housing 12 and the third housing 13 from folding relative to the second pivot assembly 3. During the process of the first housing 11 and the second housing 12 folding relative to each other from the open state to the first closed state via the first pivot assembly 2 while the second housing 12 and the third housing 13 are in the open state, the first moving member 20 of the first pivot assembly 2 moves away from the second housing 12, forming a clearance space 2460 between the first moving member 20 and the second housing 12; the first end 411 of the connector 41 enters the clearance space 2460, and the second end 412 of the connector 41 moves away from the second moving member 30 of the second pivot assembly 3, so that the second housing 12 and the third housing 13 can fold relative to the second pivot assembly 3.

[0404] Conversely, when the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are unfolded from the first closed state to the open state through the first rotating shaft assembly 2, the first moving part 20 of the first rotating shaft assembly 2 moves toward the second housing 12 and pushes the first end 411 of the connector 41 to move away from the first rotating shaft assembly 2, and the second end 412 of the connector 41 moves toward the second moving part 30 of the second rotating shaft assembly 3.

[0405] Please refer to the following: Figure 33D , Figure 34B , Figure 36J and Figure 36L In this embodiment, the first moving part 20 of the first rotating shaft assembly 2 may include the second swing arm 246.

[0406] When the first housing 11 and the second housing 12 are in the open state, the first end 411 of the connector 41 approaches the sliding end 2462 of the second swing arm 246 of the first rotating shaft assembly 2.

[0407] When the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are folded relative to each other from the open state to the first closed state through the first pivot assembly 2, the first swing arm 245 and the second swing arm 246 of the first pivot assembly 2 are folded relative to each other, and the sliding end 2462 of the second swing arm 246 of the first pivot assembly 2 moves away from the second housing 12, forming a clearance space 2460 between the sliding end 2462 of the second swing arm 246 and the second housing 12, so that the first end 411 of the connector 41 can move away from the second housing 12.

[0408] Conversely, when the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are unfolded from the first closed state to the open state through the first rotating shaft assembly 2, the first swing arm 245 and the second swing arm 246 of the first rotating shaft assembly 2 unfold relative to each other. The sliding end 2462 of the second swing arm 246 of the first rotating shaft assembly 2 moves toward the second housing 12 and pushes the first end 411 of the connector 41 to move away from the first rotating shaft assembly 2.

[0409] like Figure 33D and Figure 34B As shown, in some other embodiments, the second swing arm 246 may also have other structures. For example, a connection structure may be provided between the second swing arm 246 and the first swing arm 245, so that the second swing arm 246 can move with the first swing arm 245 relative to the second housing 12. In still other embodiments, the first moving member 20 may include one or more of the following structures: the main shaft 21, the first swing arm 245, the first fixing frame 241, and the first housing 11. This application does not limit this. When the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are folded relative to each other from the open state to the first closed state through the first rotating shaft assembly 2, the main shaft 21, the first swing arm 245, the first fixing frame 241, the first housing 11, etc., can move away from the second housing 12.

[0410] Please refer to the following: Figure 33D , Figure 34B , Figure 36K and Figure 36M In this embodiment, the first fixing frame 341 and the second housing 12 are fixedly connected, and the second fixing frame 342 and the third housing 13 are fixedly connected. The second moving component 30 of the second rotating shaft assembly 3 may include a main shaft 31. When the first housing 11 and the second housing 12 are in the open state, and the second housing 12 and the third housing 13 are in the open state, the first fixing frame 341 and the second fixing frame 342 of the second rotating shaft assembly 3 are relatively unfolded, and the first fixing frame 341 and the main shaft 31 of the second rotating shaft assembly 3 are fixedly connected through the second end 412 of the connector 41.

[0411] When the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are folded from the open state to the first closed state, the second end 412 of the connector 41 moves away from the main shaft 31 of the second rotating shaft assembly 3. When the first housing 11 and the second housing 12 are in the first closed state, the first fixing bracket 341 and the main shaft 31 of the second rotating shaft assembly 3 can move relative to each other.

[0412] Conversely, when the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are unfolded from the first closed state to the open state, the second end 412 of the connector 41 moves toward the main shaft 31 of the second rotating shaft assembly 3, so that the second end 412 of the connector 41 is fixedly connected to the first fixing frame 341 and the main shaft 31 of the second rotating shaft assembly 3.

[0413] like Figure 33D and Figure 34B As shown, in some other embodiments, the second moving member 30 may further include a first swing arm 345; in this embodiment, when the first housing 11 and the second housing 12 are in the open state, and the second housing 12 and the third housing 13 are in the open state, the second end 412 of the connector 41 may also engage with the first swing arm 345 to prevent the first swing arm 345 from sliding relative to the first fixing frame 341, thereby preventing the second housing 12 and the third housing 13 from folding relative to the second rotating shaft assembly 3. In yet another embodiment, the second moving member 30 of the second rotating shaft assembly 3 may further include other structures. During the process of the first housing 11 and the second housing 12 being in the first closed state, and the second housing 12 and the third housing 13 folding relative to each other from the open state to the second closed state via the second rotating shaft assembly 3, other structures may move relative to the second housing 12 (second housing 12), which is not limited in this application.

[0414] For example, the connector 41 may also be provided with a limiting member (not shown in the figure), which is used to limit the movement distance of the connector 41 relative to the second rotating shaft assembly 3. The structure of the limiting member is not limited in this application.

[0415] In this application, the driver 42 can be implemented in various ways. The structure of the driver 42 is described below as an example.

[0416] Please refer to the following: Figure 37 and Figure 38 , Figure 37 yes Figure 33A The diagram shown is an exploded view of the connecting device 4 in the first embodiment. Figure 38 yes Figure 2 The diagram shown is a structural schematic of the housing assembly 100 in the first embodiment. In the first embodiment, the structures of the first housing 11a, the first pivot assembly 2a, the second housing 12a, the second pivot assembly 3a, the third housing 13a, and the connector 41a of the housing assembly 100a of the electronic device 1000a, as well as the connection structures between the components, can be found by referring to... Figures 36A to 36M The structures of the first housing 11, the first pivot assembly 2, the second housing 12, the second pivot assembly 3, the third housing 13, and the connector 41 in the electronic device 1000 shown, as well as the connection structures between the components, will not be described in detail here.

[0417] The following description focuses on the structure of the drive component 42a, the connection structure between the drive component 42a and other structures, and the differences between the connector 41a.

[0418] In the first embodiment, the connector 41a may be provided with a limiting flange 413a, the outer diameter of which is larger than the outer diameter of the main body of the connector 41a. Exemplarily, the driving member 42a may be sleeved on the connector 41a and located on the side of the limiting flange 413a near the second end 412a of the connector 41a. The driving member 42a may be located between the limiting flange 413a and the second end 412a of the connector 41a, and can move relative to the connector 41a under the pushing force of the limiting flange 413a. In other embodiments, the driving member 42a may also be located on the side of the limiting flange 413a near the first end 411a, and may be located between the limiting flange 413a and the first end 411a of the connector 41a.

[0419] For example, the second housing 12a may also be provided with a receiving groove 122a, which communicates with the sliding groove 121a. A limiting flange 413a may be installed in the receiving groove 122a. One end of the driving member 42a may be connected to the limiting flange 413a, and the other end may be connected to the groove wall of the receiving groove 122a. The receiving groove 122a may be located at the end of the second housing 12a near the second rotating shaft assembly 3a, or it may be located in the middle of the second housing 12a.

[0420] For example, the driving member 42a can be an elastic member, such as a spring or other structure that can undergo elastic deformation. The driving member 42a (elastic member) is disposed at the second end of the connecting member 41a, with one end of the driving member 42a abutting against the connecting member 41a and the other end of the driving member 42a abutting against the second rotating shaft assembly 3a.

[0421] Please refer to the following: Figures 39A to 39D , Figure 39A yes Figure 38 The diagram shows a partial cross-sectional view of the structure cut along C1-C1 in the first embodiment. Figure 39B yes Figure 38 The diagram shows another section of the structure cut along C1-C1 in the first embodiment. Figure 39C yes Figure 39A The diagram shows the structure in its first closed state. Figure 39D yes Figure 39B The diagram shows the structure in its first closed state. Figure 39A The cross-sectional structure cut open at this point passes through the first housing 11a, the first rotating shaft assembly 2a, the second housing 12a, and the connecting device 4a. Figure 39BThe cross-sectional structure is cut open and passes through the second shell 12a, the second rotating shaft assembly 3a, the third shell 13a, and the connecting device 4a.

[0422] When the second housing 12a and the third housing 13a are in the open state, and the first housing 11a and the second housing 12a are in the open state, as follows: Figure 38 and Figure 39B As shown, the limiting flange 413a of the connector 41a presses against the driving member 42a. The two ends of the driving member 42a abut against the limiting flange 413a of the connector 41a and the first fixing frame 341a of the second rotating shaft assembly 3a, respectively. The driving member 42a is in a compressed state. The second end 412a of the connector 41a passes through the first fixing frame 341a of the second rotating shaft assembly 3a and is inserted into the main shaft 31a to prevent the second housing 12a and the third housing 13a from folding relative to the second rotating shaft assembly 3a.

[0423] like Figure 39D As shown, during the process of the first housing 11a and the second housing 12a folding relative to each other from the open state to the first closed state via the first rotating shaft assembly 2a while the second housing 12a and the third housing 13a are in the open state, the driving member 42a changes from a compressed state to an extended state, generating a thrust. Under the action of the thrust, the limiting flange 413a moves towards the first rotating shaft assembly 2a, thereby causing the connecting member 41a to move away from the second rotating shaft assembly 3a under the action of the thrust and leave the main shaft 31a. The second end 412a of the connecting member 41a leaves the main shaft 31a. It can be understood that the driving member 42a is considered to be in an extended state when it does not undergo elastic deformation or undergoes slight elastic deformation. The driving member 42a in the extended state is compressed and then becomes compressed, that is, the compressed state of the driving member 42a undergoes elastic deformation relative to the extended state, or the elastic deformation of the driving member 42a in the compressed state is greater than the elastic deformation of the driving member 42a in the extended state.

[0424] Conversely, when the second housing 12a and the third housing 13a are in the open state, and the first housing 11a and the second housing 12a are unfolded from the first closed state to the open state through the first rotating shaft assembly 2a, the sliding end 2462a of the second swing arm 246a slides relative to the second fixed frame 242a toward the second housing 12a, contacts and pushes the connector 41a to slide toward the second rotating shaft assembly 3a, and the limiting flange 413a of the connector 41a squeezes the driving member 42a to put the driving member 42a in a compressed state.

[0425] Please see Figure 40 , Figure 40 yes Figure 39C The structure is illustrated in some other embodiments.

[0426] For example, the second swing arm 246a may be provided with a protrusion 2453a, which is fixed to the sliding end 2462a. The cross-sectional area of ​​the protrusion 2453a may be larger than that of the sliding end 2462a to increase the contact area between the second swing arm 246a and the connecting member 41a, thereby facilitating the sliding end 2462a of the second swing arm 246a to push the connecting member 41a. Understandably, the cross-section of the structure of the second swing arm 246a in the direction perpendicular to the extension of the second swing arm 246a is the cross-section of the structure of the second swing arm 246a.

[0427] In some embodiments, the driving component 42a may further include a first magnetic component (not shown) and a second magnetic component (not shown). The first magnetic component and the second magnetic component are respectively fixed to the sliding end 2462a of the second swing arm 246a and the first end 411a of the connecting component 41a. In this embodiment, there may be an attractive force between the first magnetic component and the second magnetic component, that is, the polarities of the magnetic poles of the end of the first magnetic component near the second magnetic component and the end of the second magnetic component near the first magnetic component are opposite. For example, if the end of the first magnetic component near the second magnetic component is the N pole, then the end of the second magnetic component near the first magnetic component 421a is the S pole. Understandably, a magnetic component, also called a magnet, refers to a substance or material that can generate a magnetic field. Magnetic components may include permanent magnets and soft magnets. Among them, permanent magnets can maintain their magnetism for a long time, are not easily demagnetized, and are not easily magnetized. For example, permanent magnets may include alloy permanent magnet materials and ferrite permanent magnet materials, etc. The alloy permanent magnet material can include alloys such as neodymium iron boron (Nd2Fe14B), samarium cobalt (SmCo), and alnico (AlNiCo). The polarity of the soft magnet changes with the polarity of the applied magnetic field, and it can be used as a magnetic conductor and electromagnet. For example, the soft magnet can include iron-silicon alloys (silicon steel sheets), soft magnetic ferrite materials, iron, cobalt, nickel, and alloys of iron, cobalt, and nickel. In this application, both the first and second magnetic components can be permanent magnets; alternatively, one of the first or second magnetic components can be a permanent magnet, capable of maintaining magnetism for a long time, while the other can be a soft magnet, capable of being magnetized by the permanent magnet. This application does not limit this choice.

[0428] In some embodiments, the drive member 42a may further include a first magnetic member and a second magnetic member. The first magnetic member may be fixed to the first fixing frame 341a of the second rotating shaft assembly 3a and / or the main shaft 31a of the second rotating shaft assembly 3a, and the second magnetic member may be fixed to the second end 412a of the connector 41a. In this embodiment, there may also be a repulsive force between the first magnetic member and the second magnetic member, that is, the magnetic poles of the end of the first magnetic member near the second magnetic member and the end of the second magnetic member near the first magnetic member have the same polarity. For example, the end of the first magnetic member near the second magnetic member is the N pole, and the end of the second magnetic member near the first magnetic member 421a is also the N pole.

[0429] In some embodiments, the drive member 42a may further include a first magnetic member, a second magnetic member, a third magnetic member (not shown), and a fourth magnetic member (not shown). The first and second magnetic members may be fixed to the sliding end 2462a of the second swing arm 246a and the first end 411a of the connector 41a, respectively. The third magnetic member may be fixed to the first fixing frame 341a of the second rotating shaft assembly 3a and / or the main shaft 31a of the second rotating shaft assembly 3a, and the fourth magnetic member may be fixed to the second end 412a of the connector 41a. In this embodiment, there may be an attractive force between the first and second magnetic members, and a repulsive force between the third and fourth magnetic members. In this application, both the third and fourth magnetic members may be permanent magnets; alternatively, one of the third or fourth magnetic members may be a permanent magnet, and the other a soft magnet; this application does not limit this.

[0430] Please refer to the following: Figure 41 , Figures 42A to 42C , Figure 41 yes Figure 33A The schematic diagram of the connecting device 4 in the second embodiment is shown. Figure 42A yes Figure 2 The schematic diagram of the housing device 100 shown in the second embodiment is shown. Figure 42B yes Figure 42A A partial structural schematic diagram of the housing device 100 shown. Figure 42C yes Figure 42B The diagram shows the structure when the part shown is in the first closed state. Figure 42C The structure of the first swing arm 245b, the damping component 247b, the second swing arm 246b, the second fixing frame 242b, the connector 41b, and the drive component 42b are illustrated.

[0431] In the second embodiment, the structure of the first housing 11b, the first pivot assembly 2b, the second housing 12b, the second pivot assembly 3b, the third housing 13b, and the connector 41b of the housing assembly 100b of the electronic device 1000b, as well as the connection structure between the components, can be referred to Figures 36A to 36M The structures of the first housing 11, the first pivot assembly 2, the second housing 12, the second pivot assembly 3, the third housing 13, and the connector 41 in the electronic device 1000 shown, as well as the connection structures between the components, will not be described in detail here.

[0432] The following description focuses on the structure of the drive component 42b, the connection structure between the drive component 42b and other structures, and the differences between the connector 41b.

[0433] In the second embodiment, the driving member 42b may include a first magnetic member 421b and a second magnetic member 422b. The first magnetic member 421b and the second magnetic member 422b are respectively fixed to the sliding end 2462b of the second swing arm 246b and the first end 411b of the connecting member 41b. In this embodiment, there may be an attractive force between the first magnetic member 421b and the second magnetic member 422b, that is, the polarities of the magnetic poles on opposite sides of the first magnetic member 421b and the second magnetic member 422b are opposite. For example, the end of the first magnetic member 421b closer to the second magnetic member 422b is the N pole, and the end of the second magnetic member 422b closer to the first magnetic member 421b is the S pole.

[0434] For example, the drive member 42b can also be an elastic member (not shown). In this embodiment, the drive member 42b is connected between the sliding end 2462b of the second swing arm 246b of the first rotating shaft assembly 2b and the first end 411b of the connector 41b.

[0435] In some other embodiments, the first magnetic element 421b may be fixed to the first fixing frame 341b of the second rotating shaft assembly 3b and / or the main shaft 31b of the second rotating shaft assembly 3b, and the second magnetic element 422b may be fixed to the second end 412b of the connecting member 41b. In this embodiment, there may be a repulsive force between the first magnetic element 421b and the second magnetic element 422b, that is, the magnetic poles on the opposite side of the first magnetic element 421b and the magnetic poles on the opposite side of the second magnetic element 422b have the same polarity.

[0436] In some embodiments, the drive member 42b may further include a first magnetic member 421b, a second magnetic member 422b, a third magnetic member (not shown), and a fourth magnetic member (not shown). The first magnetic member 421b and the second magnetic member 422b may be fixed to the sliding end 2462b of the second swing arm 246b and the first end 411b of the connector 41b, respectively. The third magnetic member may be fixed to the first fixing frame 341b of the second rotating shaft assembly 3b and / or the main shaft 31b of the second rotating shaft assembly 3b, and the fourth magnetic member may be fixed to the second end 412b of the connector 41b. In this embodiment, there may be an attractive force between the first magnetic member 421b and the second magnetic member 422b, and a repulsive force may exist between the third magnetic member and the fourth magnetic member.

[0437] For example, such as Figure 42AAs shown, the second housing 12b may also be provided with a receiving groove 122b communicating with the sliding groove 121b, and the connecting member 41b may also be provided with a limiting flange 413b. The limiting flange 413b is located in the receiving groove 122b, thereby cooperating with the receiving groove 122b to limit the travel of the connecting member 41b between the first rotating shaft assembly 2b and the second rotating shaft assembly 3b. The driving member 42b may also be provided with an elastic member sleeved on the connecting member 41b (not shown in the figure, please refer to the figure). Figure 37 In the first embodiment shown, the structure of the driving member 42a is such that the elastic member is located on the side of the limiting flange 413b near the second end 412b, and moves relative to the connecting member 41b under the push of the limiting flange 413b. The elastic member is used to provide thrust during the process of the second housing 12d and the third housing 13d being in the open state, and the first housing 11d and the second housing 12d being folded relative to each other to the first closed state through the first pivot assembly 2d. Under the action of the thrust, the second end 412b of the connecting member 41b moves away from the second pivot assembly 3b, thereby enabling the second housing 12b and the third housing 13b to fold relative to the second pivot assembly 3b.

[0438] Please refer to the following: Figures 43A to 43D , Figure 43A yes Figure 42A The diagram shown is a schematic representation of a partial cross-section of the structure cut along C2-C2 in the second embodiment. Figure 43B yes Figure 42A The diagram shows another section of the structure cut along C2-C2 in the second embodiment. Figure 43C yes Figure 43A The diagram shows the structure in its first closed state. Figure 43D yes Figure 43B The diagram shows the structure in its first closed state. Figure 43A The cross-sectional structure, when cut open, passes through the first housing 11b, the first rotating shaft assembly 2b, the second housing 12b, and the connecting device 4b. Figure 43B The cross-sectional structure is cut open through the second housing 12b, the second rotating shaft assembly 3b, the third housing 13b, and the connecting device 4b.

[0439] like Figure 43A and Figure 43BAs shown, when the second housing 12b and the third housing 13b are in the open state, and the first housing 11b and the second housing 12b are in the open state, the first end 411b of the connector 41b is magnetically connected to the sliding end 2462b of the second swing arm 246b of the first rotating shaft assembly 2b through the drive member 42b. Specifically, the first magnetic member 421b fixed to the sliding end 2462b of the second swing arm 246b and the second magnetic member 422b fixed to the first end 411b of the connector 41b are magnetically connected. The second end 412b of the connector 41b passes through the first fixing frame 341b of the second rotating shaft assembly 3b and is inserted into the main shaft 31b to prevent the first fixing frame 341b of the second rotating shaft assembly 3b from moving relative to the main shaft 31b, thereby preventing the second housing 12b and the third housing 13b from folding relative to the second rotating shaft assembly 3b.

[0440] like Figure 43C and Figure 43D As shown, when the second housing 12b and the third housing 13b are in the open state, and the first housing 11b and the second housing 12b are folded relative to each other from the open state to the first closed state through the first rotating shaft assembly 2b, the sliding end 2462b of the second swing arm 246b moves away from the second fixed frame 242b, and drives the connecting member 41b to move away from the second rotating shaft assembly 3b through the driving member 42b, so that the second end 412b of the connecting member 41b leaves the main shaft 31b.

[0441] When the first housing 11b and the second housing 12b are in the first closed state, the first fixing frame 341b of the second rotating shaft assembly 3b can move relative to the main shaft 31b, that is, the second housing 12b and the third housing 13b can be folded relative to the second rotating shaft assembly 3b.

[0442] Please refer to the following: Figure 44 and Figure 45 , Figure 44 yes Figure 33A The diagram shown is an exploded view of the connecting device 4c in the third embodiment. Figure 45 yes Figure 2 The schematic diagram of the housing device 100c shown in the third embodiment.

[0443] In the third embodiment, the structure of the first housing 11c, the first pivot assembly 2c, the second housing 12c, the second pivot assembly 3c, the third housing 13c, and the connector 41c of the housing device 100c of the electronic device 1000c, as well as the connection structure between the components, can be referred to Figures 36A to 36M The structures of the first housing 11, the first pivot assembly 2, the second housing 12, the second pivot assembly 3, the third housing 13, and the connector 41 in the electronic device 1000 shown, as well as the connection structures between the components, will not be described in detail here.

[0444] The following description focuses on the structure of the drive component 42c, the connection structure between the drive component 42c and other structures, and the differences between the drive component 42c and the connector 41c.

[0445] In the third embodiment, the second housing 12c may further be provided with a receiving groove 122c, which communicates with the sliding groove 121c. The driving member 42c is connected between the connecting member 41c and the receiving groove 122c of the second housing 12c. The driving member 42c may include a third magnetic member 423c and a fourth magnetic member 424c.

[0446] In some embodiments, the receiving groove 122c has a first sidewall perpendicular to the extending direction of the connector 41c, the first sidewall being close to the first rotating shaft assembly 2c. A third magnetic element 423c can be fixed to the first sidewall of the receiving groove 122c near the first rotating shaft assembly 2c and movably sleeved on the connector 41c, while a fourth magnetic element 424c is fixedly sleeved on the connector 41c and located in the receiving groove 122c. In this embodiment, there can be an attractive force between the third magnetic element 423c and the fourth magnetic element 424c, meaning that the polarities of the magnetic poles on opposite sides of the third magnetic element 423c and the fourth magnetic element 424c are opposite.

[0447] In some other embodiments, the receiving groove 122c has a second sidewall perpendicular to the extending direction of the connector 41c, and the second sidewall is close to the second rotating shaft assembly 3c. A third magnetic element 423c can be fixed to the second sidewall of the receiving groove 122c, and a fourth magnetic element 424c is fixedly sleeved on the connector 41c and located in the receiving groove 122c. In this embodiment, there may be a repulsive force between the third magnetic element 423c and the fourth magnetic element 424c, that is, the polarities of the magnetic poles on opposite sides of the third magnetic element 423c and the fourth magnetic element 424c are opposite.

[0448] Please refer to the following: Figure 45 , Figures 46C to 46D , Figure 46A yes Figure 45 The diagram shows a partial cross-sectional view of the structure cut along C3-C3 in the third embodiment. Figure 46B yes Figure 45 The diagram shows another section of the structure cut along C3-C3 in the third embodiment. Figure 46C yes Figure 46A The diagram shows the structure in its first closed state. Figure 46D yes Figure 46B The diagram shows the structure in its first closed state. Figure 46A The cross-sectional structure cut open at this point passes through the first housing 11c, the first rotating shaft assembly 2c, the second housing 12c, and the connecting device 4c. Figure 46BThe cross-sectional structure is cut open and passes through the second shell 12c, the second rotating shaft assembly 3c, the third shell 13c, and the connecting device 4c.

[0449] like Figure 46A and Figure 46B As shown, when the second housing 12 and the third housing 13 are in the open state, and the first housing 11 and the second housing 12 are in the open state, the first end 411c of the connector 41c abuts against the sliding end 2462c of the second swing arm 246c of the first rotating shaft assembly 2c, the fourth magnetic element 424c is located on the side of the third magnetic element 423c close to the second rotating shaft assembly 3c and there is a gap between them, and the second end 412c of the connector 41c passes through the first fixing frame 341c of the second rotating shaft assembly 3c and is inserted into the main shaft 31c to prevent the second housing 12c and the third housing 13c from folding relative to the second rotating shaft assembly 3c.

[0450] like Figure 46C and Figure 46D As shown, when the second housing 12c and the third housing 13c are in the open state, and the first housing 11c and the second housing 12c are folded relative to each other from the open state to the first closed state via the first rotating shaft assembly 2c, the sliding end 2462c of the second swing arm 246c slides away from the second housing 12c relative to the second fixed frame 242c, leaving a clearance space 2460c between the sliding end 2462c and the second fixed frame 242c. There is an attractive force between the third magnetic component 423c and the fourth magnetic component 424c. Under the action of the attractive force, the fourth magnetic component 424c moves towards the third magnetic component 423c, and drives the connecting component 41c to move towards the first rotating shaft assembly 2c, so that the first end 411c of the connecting component 41c enters the clearance space 2460c and the second end 412c of the connecting component 41c leaves the main shaft 31c. In addition, the distance between the third magnetic element 423c and the fourth magnetic element 424c becomes smaller, or the third magnetic element 423c comes into contact with the fourth magnetic element 424c.

[0451] When the first housing 11c and the second housing 12c are in the first closed state, the first fixing frame 341c of the second rotating shaft assembly 3c can move relative to the main shaft 31c, that is, the second housing 12c and the third housing 13c can be folded relative to the second rotating shaft assembly 3c.

[0452] Conversely, when the second housing 12c and the third housing 13c are in the open state, and the first housing 11c and the second housing 12c are unfolded from the first closed state to the open state via the first rotating shaft assembly 2c, the sliding end 2462c of the second swing arm 246c slides relative to the second fixed frame 242c towards the second housing 12c, contacting and pushing the connector 41c towards the second rotating shaft assembly 3c, so that the second end 412c of the connector 41c passes through the first fixed frame 341c of the second rotating shaft assembly 3c and is engaged with the main shaft 31c. The fourth magnetic element 424c moves away from the third magnetic element 423c under the action of the connector 41c.

[0453] In some other embodiments, there may also be a repulsive force between the third magnetic element 423c and the fourth magnetic element 424c. The third magnetic element 423c is fixed to the second housing 12c and movably sleeved on the connector 41c. The fourth magnetic element 424c is fixedly sleeved on the connector 41c and is located on the side of the third magnetic element 423c away from the second rotating shaft assembly 3c. When the second housing 12c and the third housing 13c are in the open state, and the first housing 11c and the second housing 12c are in the open state, the third magnetic element 423c and the fourth magnetic element 424c are in contact or have a gap between them; when the second housing 12c and the third housing 13c are in the open state, and the first housing 11c and the second housing 12c are folded relative to each other from the open state to the first closed state through the first rotating shaft assembly 2c, the fourth magnetic element 424c moves away from the third magnetic element 423c under the action of repulsion, and drives the connecting member 41c to move closer to the first rotating shaft assembly 2c, thereby driving the second end 412c of the connecting member 41c to move away from the second rotating shaft assembly 3c.

[0454] For example, the drive element 42c may also include a third magnetic element and a fourth magnetic element (not shown in the figure, please refer to...). Figure 41 In the second embodiment shown, the structure of the driving member 42b is shown. The third magnetic member and the fourth magnetic member are respectively fixed to the sliding end 2462c of the second swing arm 246c and the first end 411c of the connecting member 41c, which will not be described in detail here.

[0455] Please refer to the following: Figure 47A , Figure 47B and Figure 48 , Figure 47A yes Figure 33A The diagram shows the assembly structure of the connecting device 4 and the second swing arm 246 in the fourth embodiment. Figure 47B yes Figure 47A An exploded view of the structure shown. Figure 48 yes Figure 2The diagram shows the structure of the housing assembly 100 in the fourth embodiment. In the fourth embodiment, the structures of the first housing 11d, the first pivot assembly 2d, the second housing 12d, the second pivot assembly 3d, the third housing 13d, and the connector 41d of the housing assembly 100d of the electronic device 1000d, as well as the connection structures between the components, can be referenced. Figures 36A to 36M The structures of the first housing 11, the first pivot assembly 2, the second housing 12, the second pivot assembly 3, the third housing 13, and the connector 41 in the electronic device 1000 shown, as well as the connection structures between the components, will not be described in detail here.

[0456] The following description focuses on the structure of the drive component 42d, the connection structure between the drive component 42d and other structures, and the differences between the connector 41d.

[0457] In the fourth embodiment, the drive member 42d is connected between the connecting member 41d and the sliding end 2462d of the second swing arm 246d of the first rotating shaft assembly 2d. The drive member 42d can generate a pulling force and can also move or deform, so that the connecting member 41d can move with the second swing arm 246d of the first rotating shaft assembly 2d of the second housing 12d under the action of the pulling force.

[0458] For example, the drive member 42d includes a first rotating end 421d and a second rotating end 422d. The first rotating end 421d of the drive member 42d is rotatably connected to the sliding end 2462d of the second swing arm 246d of the first rotating shaft assembly 2d, and the second rotating end 422d of the drive member 42d is rotatably connected to the first end 411d of the connector 41d. For example, the first rotating end 421d and the second rotating end 422d of the driving member 42d can be rotatably connected to other components via a pin or other structure. Specifically, the driving member 42d may include a connecting shaft 423d, a first bushing 424d, and a second bushing 425d. The first bushing 424d is fixedly connected to the sliding end 2462d of the second swing arm 246d of the first rotating shaft assembly 2d. The second bushing 425d is fixedly connected to the first end 411d of the connecting member 41d. The two ends of the connecting shaft 423d are respectively provided with rotating shafts, which are inserted into the shaft holes of the first bushing 424d and the second bushing 425d, and both rotate relative to the first bushing 424d and the second bushing 425d. In some other embodiments, the driving member 42d may also be an elastic element or other structure, which is not limited in this application.

[0459] Please refer to the following: Figure 48 , Figures 49A to 49D , Figure 49A yes Figure 48 The diagram shows a partial cross-sectional view of the structure cut along C4-C4 in the fourth embodiment. Figure 49B yes Figure 48The diagram shows another section of the structure cut along C4-C4 in the fourth embodiment. Figure 49C yes Figure 49A The diagram shows the structure in its first closed state. Figure 49D yes Figure 49B The diagram shows the structure in its first closed state. Figure 49A The cross-sectional structure cut open at this point passes through the first shell 11d, the first rotating shaft assembly 2d, and the second shell 12d. Figure 49B The cross-sectional structure cut at the point passes through the second shell 12d, the second rotating shaft assembly 3d, and the third shell 13d.

[0460] like Figure 49A and Figure 49B As shown, when the second housing 12d and the third housing 13d are in the open state, and the first housing 11d and the second housing 12d are in the open state, the first end 411d of the connector 41d is connected to the sliding end 2462d of the second swing arm 246d of the first rotating shaft assembly 2d through the drive member 42d, and the second end 412d of the connector 41d passes through the first fixing frame 341d of the second rotating shaft assembly 3d and is inserted into the main shaft 31d to prevent the second housing 12d and the third housing 13d from folding relative to the second rotating shaft assembly 3d.

[0461] like Figure 49C and Figure 49D As shown, when the second housing 12d and the third housing 13d are in the open state, and the first housing 11d and the second housing 12d are folded relative to each other from the open state to the first closed state through the first rotating shaft assembly 2d, the sliding end 2462d of the second swing arm 246d moves away from the second fixed frame 242d and leaves a clearance space 2460d. The second swing arm 246d pulls the connecting piece 41d away from the second rotating shaft assembly 3d through the driving member 42d. The first end 411d of the connecting piece 41d enters the clearance space 2460d, and the second end 412d of the connecting piece 41d leaves the main shaft 31d.

[0462] Conversely, when the second housing 12d and the third housing 13d are in the open state, and the first housing 11d and the second housing 12d are unfolded from the first closed state to the open state through the first rotating shaft assembly 2d, the sliding end 2462d of the second swing arm 246d slides relative to the second fixed frame 242d toward the second housing 12d, and pushes the connecting member 41d toward the second rotating shaft assembly 3d through the driving member 42d, so that the second end 412d of the connecting member 41d passes through the first fixed frame 341d of the second rotating shaft assembly 3d and is engaged with the main shaft 31d.

[0463] In the fourth embodiment, as Figure 47AAs shown, the connector 41d may have a limiting flange 413d, the outer diameter of which is larger than the outer diameter of the main body of the connector 41d. The driving member 42d may also include an elastic member (not shown in the figure, please refer to the reference) sleeved on the connector 41d. Figure 37 (Structure of drive member 42a in the first embodiment shown). An elastic member is located on the side of the limiting flange 413d near the second end 412d and moves relative to the connecting member 41d under the push of the limiting flange 413d. The elastic member provides thrust during the process of the first housing 11d and the second housing 12d folding relative to each other from the open state to the first closed state via the first pivot assembly 2d when the second housing 12d and the third housing 13d are in the open state. The connecting member 41d moves under the thrust, causing the second end 412d of the connecting member 41d to move away from the second pivot assembly 3d, thereby enabling the second housing 12d and the third housing 13d to fold relative to the second pivot assembly 3d. The second housing 12d may also be provided with a receiving groove 122d, which communicates with the sliding groove 121d. The limiting flange 413d can be installed in the receiving groove 122d.

[0464] For example, the driving element 42d may also include a first magnetic element and a second magnetic element (not shown in the figure, please refer to...). Figure 44 The structure of the drive unit 42c in the third embodiment shown will not be described again here.

[0465] In some embodiments, such as Figure 39B and Figure 46B As shown, the drive member 42a can be connected between the connector 41a and the second rotating shaft assembly 3a, or the drive member 42c can be connected between the connector 41c and the second housing 12c. When the second housing (12a, 12c) and the third housing (13a, 13c) are in the open state, and the first housing (11a, 11c) and the second housing (12a, 12c) are folded relative to each other from the open state to the first closed state, the drive member (42a, 42c) is used to provide thrust to push the connector (41a, 41c) to move, so that the second end (412a, 412c) of the connector (41a, 41c) moves away from the second rotating shaft assembly (3a, 3c), thereby enabling the second housing (12a, 12c) and the third housing (13a, 13c) to fold relative to the second rotating shaft assembly (3a, 3c).

[0466] In some other embodiments, such as Figure 43B and Figure 49BAs shown, the drive members (42b, 42d) can be connected between the first pivot assembly (2b, 2d) and the connector (41b, 41d). When the second housing (12b, 12d) and the third housing (13b, 13d) are in the open state, and the first housing (11b, 11d) and the second housing (12b, 12d) are folded relative to each other from the open state to the first closed state, the drive members (42b, 42d) are used to provide a pulling or pulling force to move the connector (41b, 41d) so that the second end (412b, 412d) of the connector (41b, 41d) moves away from the second pivot assembly (3b, 3d), thereby enabling the second housing (12b, 12d) and the third housing (13b, 13d) to fold relative to the second pivot assembly (3b, 3d).

[0467] In this application, in addition to the structures of the driving components (41a, 41b, 41c, 41d) in the four embodiments described above, other structures may also be used, and this application does not limit them.

[0468] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Where there is no conflict, the embodiments and features in the embodiments of this application can be combined with each other. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A foldable electronic device (1000), characterized in that, The electronic device (1000) includes a first housing (11), a second housing (12), a third housing (13), a first rotating shaft assembly (2), and a second rotating shaft assembly (3). The first pivot assembly (2) is connected between the first housing (11) and the second housing (12), and the first housing (11) and the second housing (12) can be unfolded or folded relative to each other through the pivot assembly (2). The second pivot assembly (3) is connected between the second housing (12) and the third housing (13), and the second housing (12) and the third housing (13) can be unfolded or folded relative to each other through the second pivot assembly (3). The electronic device (1000) further includes a connector (41), which includes a first end (411) and a second end (412). The first end (411) of the connector (41) is close to the first rotating shaft assembly (2), and the second end (412) of the connector (41) is close to the second rotating shaft assembly (3). The second housing (12) is provided with a sliding groove (121), the sliding groove (121) extends to the end faces of the left and right sides of the second housing (12), and the connector (41) is located in the sliding groove (121). The second rotating shaft assembly (3) includes a main shaft (31) with a groove (313) and the opening of the groove (313) facing the second housing (12). When the first housing (11) and the second housing (12) are in the open state, and the second housing (12) and the third housing (13) are in the open state, the second end (412) of the connector (41) is connected between the second housing (12) and the second rotating shaft assembly (3), and the second end (412) of the connector (41) is inserted into the groove (313) to prevent the second housing (12) and the third housing (13) from folding relative to the second rotating shaft assembly (3); When the second housing (12) and the third housing (13) are in the open state, and the first housing (11) and the second housing (12) are folded relative to each other from the open state to the first closed state through the first pivot assembly (2), the second end (412) of the connector (41) moves away from the second pivot assembly (3) and the second end (412) of the connector (41) leaves the groove (313). When the first housing (11) and the second housing (12) are in a first closed state, the second housing (12) and the third housing (13) can be folded relative to the second pivot assembly (3).

2. The electronic device (1000) as claimed in claim 1, characterized in that, The connector (41) is slidably connected to the second housing (12).

3. The electronic device (1000) as described in claim 1 or 2, characterized in that, When the first housing (11) and the second housing (12) are in the first closed state, the second housing (12) and the third housing (13) can be unfolded relative to the second rotating shaft assembly (3); When the second housing (12) and the third housing (13) are in the open state, and the first housing (11) and the second housing (12) are unfolded from the first closed state to the open state through the first rotating shaft assembly (2), the second end (412) of the connector (41) moves toward the second rotating shaft assembly (3), so that the second end (412) of the connector (41) is connected between the second housing (12) and the second rotating shaft assembly (3).

4. The electronic device (1000) as claimed in any one of claims 1 to 3, characterized in that, The first rotating shaft assembly (2) includes a first moving part (20) and a main shaft (21). One end of the first moving part (20) is rotatably connected to the main shaft (21), and the other end is slidably connected to the second housing (12). When the second housing (12) and the third housing (13) are in the open state, and the first housing (11) and the second housing (12) are folded relative to each other from the open state to the first closed state through the first pivot assembly (2), the first moving part (20) of the first pivot assembly (2) moves away from the second housing (12), forming a clearance space (2460) between the first moving part (20) and the second housing (12); the first end (411) of the connector (41) enters the clearance space (2460), and the second end (412) of the connector (41) moves away from the second pivot assembly (3).

5. The electronic device (1000) as claimed in claim 4, characterized in that, The first rotating shaft assembly (2) includes a first swing arm (245) and a second swing arm (246). The second swing arm (246) includes a rotating end (2461) and a sliding end (2462). The rotating end (2461) of the second swing arm (246) is rotatably connected to the main shaft (21) of the first rotating shaft assembly (2), and the sliding end (2462) of the second swing arm (246) is slidably connected to the second housing (12). The first moving member (20) includes the second swing arm (246). When the first housing (11) and the second housing (12) are in the open state, the first end (411) of the connector (41) is close to the sliding end (2462) of the second swing arm (246) of the first rotating shaft assembly (2). When the second housing (12) and the third housing (13) are in the open state, and the first housing (11) and the second housing (12) are folded relative to each other from the open state to the first closed state through the first pivot assembly (2), the first swing arm (245) and the second swing arm (246) of the first pivot assembly (2) are folded relative to each other, and the sliding end (2462) of the second swing arm (246) of the first pivot assembly (2) moves away from the second housing (12), forming the clearance space (2460) between the sliding end (2462) of the second swing arm (246) and the second housing (12).

6. The electronic device (1000) as claimed in any one of claims 1 to 5, characterized in that, The second rotating shaft assembly (3) includes a first fixing frame (341) and a second fixing frame (342); The first fixing frame (341) and the second housing (12) are fixedly connected; The second fixing frame (342) and the third housing (13) are fixedly connected; When the first housing (11) and the second housing (12) are in the open state, and the second housing (12) and the third housing (13) are in the open state, the first fixing frame (341) and the second fixing frame (342) of the second rotating shaft assembly (3) are unfolded relative to each other, and the first fixing frame (341) and the main shaft (31) of the second rotating shaft assembly (3) are fixedly connected through the second end (412) of the connector (41). During the process of the first housing (11) and the second housing (12) being in the open state and the first housing (11) and the second housing (12) being folded from the open state to the first closed state, the second end (412) of the connector (41) moves away from the main shaft (31) of the second rotating shaft assembly (3); When the first housing (11) and the second housing (12) are in the first closed state, the main shaft (31) of the first fixing frame (341) and the second rotating shaft assembly (3) can move relative to each other.

7. The electronic device (1000) as claimed in claim 6, characterized in that, The first fixing frame (341) of the second rotating shaft assembly (3) is provided with a through hole (3415), and the opening of the groove (313) faces the through hole (3415) of the first fixing frame (341) of the second rotating shaft assembly (3). When the first housing (11) and the second housing (12) are in the open state, and the second housing (12) and the third housing (13) are in the open state, the second end (412) of the connector (41) passes through the through hole (3415) through the first fixing frame (341) of the second rotating shaft assembly (3) and is inserted into the groove (313) to fix the first fixing frame (341) and the main shaft (31) of the second rotating shaft assembly (3). During the process of the second housing (12) and the third housing (13) being in the open state, and the first housing (11) and the second housing (12) being folded from the open state to the first closed state, the second end (412) of the connector (41) moves away from the groove (313); When the first housing (11) and the second housing (12) are in the first closed state, the second end (412) of the connector (41) leaves the groove (313), and the main shaft (31) of the first fixing frame (341) and the second rotating shaft assembly (3) can move relative to each other.

8. The electronic device (1000) as claimed in any one of claims 1 to 7, characterized in that, The electronic device (1000) further includes a drive unit (42), and at least one of the connector (41), the first rotating shaft assembly (2), the second rotating shaft assembly (3) or the second housing (12) is provided with the drive unit (42). When the second housing (12) and the third housing (13) are in the open state, and the first housing (11) and the second housing (12) are folded relative to each other from the open state to the first closed state through the first rotating shaft assembly (2), the driving member (42) is used to drive the second end (412) of the connector (41) to move away from the second rotating shaft assembly (3).

9. The electronic device as claimed in claim 8, characterized in that, The driving component is an elastic component, and the driving component is disposed at the second end of the connecting component. One end of the driving component abuts against the connecting component, and the other end of the driving component abuts against the second rotating shaft assembly.

10. The electronic device as claimed in claim 8, characterized in that, The driving component includes a first magnetic component (421b) and a second magnetic component (422b). The first magnetic component (421b) and the second magnetic component (422b) are respectively fixed to the sliding end of the second swing arm of the first rotating shaft assembly (2b) and the first end of the connecting member. There is an attractive force between the first magnetic component (421b) and the second magnetic component (422b). Under the action of the attractive force, the first end of the connecting member moves with the sliding end of the second swing arm of the first rotating shaft assembly.

11. The electronic device as claimed in claim 8, characterized in that, The driving component includes a third magnetic component (423c) and a fourth magnetic component (424c). The third magnetic component (423c) is fixed to the second housing and movably sleeved on the connecting component. The fourth magnetic component (424c) is fixedly sleeved on the connecting component and located on the side of the third magnetic component (423c) closer to the second rotating shaft assembly. There is an attractive force between the third magnetic component (423c) and the fourth magnetic component (424c). When the first housing and the second housing are in the open state, and the second housing and the third housing are in the open state, there is a gap between the third magnetic element (423c) and the fourth magnetic element (424c); During the process of the first housing and the second housing folding from the open state to the first closed state through the first pivot assembly, the fourth magnetic element (424c) moves towards the third magnetic element under the action of attraction, causing the second end of the connector to move away from the second pivot assembly.

12. The electronic device as claimed in claim 8, characterized in that, The driving component includes a third magnetic component (423c) and a fourth magnetic component (424c). The third magnetic component (423c) is fixed to the second housing and movably sleeved on the connecting component. The fourth magnetic component (424c) is fixedly sleeved on the connecting component and located on the side of the third magnetic component (423c) away from the second rotating shaft assembly. There is a repulsive force between the third magnetic component (423c) and the fourth magnetic component (424c). When the first housing and the second housing are in the open state, and the second housing and the third housing are in the open state, the third magnetic element (423c) and the fourth magnetic element (424c) are in contact or have a gap between them; during the process of the first housing and the second housing folding from the open state to the first closed state through the first rotating shaft assembly, the fourth magnetic element (424c) moves away from the third magnetic element (423c) under the action of repulsive force, causing the second end of the connector to move away from the second rotating shaft assembly.

13. The electronic device as claimed in claim 8, characterized in that, The driving component includes a first rotating end (421d) and a second rotating end (422d). The first rotating end (421d) of the driving component is rotatably connected to the sliding end of the second swing arm of the first rotating shaft assembly, and the second rotating end (422d) of the driving component (42b) is rotatably connected to the first end of the connecting component.

14. The electronic device (1000) as claimed in any one of claims 1 to 13, characterized in that, The electronic device (1000) further includes a screen (200), and the first housing (11), the second housing (12), the third housing (13), the first pivot assembly (2) and the second pivot assembly (3) together support the screen (200).

15. The electronic device (1000) as claimed in any one of claims 1 to 14, characterized in that, The first pivot assembly (2) further includes a first support member (22) and a second support member (23), wherein the first support member (22) can be unfolded or folded relative to each other; During the process of the first pivot assembly (2) folding from the open state to the closed state, the first support member (22) and the second support member (23) fold relative to each other. The first support member (22) and the second support member (23) are located on the same side of the main shaft (21). The distance between the first support member (22) and the second support member (23) increases in the direction closer to the main shaft (21). The first support member (22), the second support member (23) and the main shaft (21) together form the screen-accommodating space (210).

16. The electronic device (1000) as claimed in any one of claims 1 to 15, characterized in that, The second rotating shaft assembly (3) includes a first fixing frame (341) and a second fixing frame (342). The first fixing frame (341) and the second fixing frame (342) are respectively connected to both sides of the main shaft (31). The first fixing frame (341) and the second fixing frame (342) can be unfolded or folded relative to each other. During the process of the second rotating shaft assembly (3) folding from the open state to the first closed state, the first fixing frame (341) and the second fixing frame (342) fold relative to each other. The first fixing frame (341) and the second fixing frame (342) are located on the same side of the main shaft (31). The first fixing frame (341) is parallel to the second fixing frame (342). The first fixing frame (341), the second fixing frame (342) and the main shaft (31) together form the screen-accommodating space (310).

17. A housing device (100) applied to a foldable electronic device (1000), characterized in that, The housing device (100) includes a first housing (11), a second housing (12), a third housing (13), a first rotating shaft assembly (2), and a second rotating shaft assembly (3). The first pivot assembly (2) is connected between the first housing (11) and the second housing (12), and the first housing (11) and the second housing (12) can be unfolded or folded relative to each other through the pivot assembly (2). The second pivot assembly (3) is connected between the second housing (12) and the third housing (13), and the second housing (12) and the third housing (13) can be unfolded or folded relative to each other through the second pivot assembly (3). The housing device (100) further includes a connector (41), which includes a first end (411) and a second end (412). The first end (411) of the connector (41) is close to the first rotating shaft assembly (2), and the second end (412) of the connector (41) is close to the second rotating shaft assembly (3). The second housing (12) is provided with a sliding groove (121), the sliding groove (121) extends to the end faces of the left and right sides of the second housing (12), and the connector (41) is located in the sliding groove (121). The second rotating shaft assembly (3) includes a main shaft (31) with a groove (313) and the opening of the groove (313) facing the second housing (12). When the first housing (11) and the second housing (12) are in the open state, and the second housing (12) and the third housing (13) are in the open state, the second end (412) of the connector (41) is connected between the second housing (12) and the second rotating shaft assembly (3), and the second end (412) of the connector (41) is inserted into the groove (313) to prevent the second housing (12) and the third housing (13) from folding relative to the second rotating shaft assembly (3); When the second housing (12) and the third housing (13) are in the open state, and the first housing (11) and the second housing (12) are folded relative to each other from the open state to the first closed state through the first pivot assembly (2), the second end (412) of the connector (41) moves away from the second pivot assembly (3) and the second end (412) of the connector (41) leaves the groove (313). When the first housing (11) and the second housing (12) are in a first closed state, the second housing (12) and the third housing (13) can be folded relative to the second pivot assembly (3).

18. The housing device (100) as claimed in claim 17, characterized in that, The connector (41) is slidably connected to the second housing (12).

19. The housing device (100) as claimed in claim 17 or 18, characterized in that, When the first housing (11) and the second housing (12) are in the first closed state, the second housing (12) and the third housing (13) can be unfolded relative to the second rotating shaft assembly (3); When the second housing (12) and the third housing (13) are in the open state, and the first housing (11) and the second housing (12) are unfolded from the first closed state to the open state through the first rotating shaft assembly (2), the second end (412) of the connector (41) moves toward the second rotating shaft assembly (3), so that the second end (412) of the connector (41) is connected between the second housing (12) and the second rotating shaft assembly (3).

20. The housing device (100) as claimed in any one of claims 17 to 19, characterized in that, The first rotating shaft assembly (2) includes a first moving part (20) and a main shaft (21). One end of the first moving part (20) is rotatably connected to the main shaft (21), and the other end is slidably connected to the second housing (12). When the second housing (12) and the third housing (13) are in the open state, and the first housing (11) and the second housing (12) are folded relative to each other from the open state to the first closed state through the first pivot assembly (2), the first moving part (20) of the first pivot assembly (2) moves away from the second housing (12), forming a clearance space (2460) between the first moving part (20) and the second housing (12); the first end (411) of the connector (41) enters the clearance space (2460), and the second end (412) of the connector (41) moves away from the second pivot assembly (3).

21. The housing device (100) as claimed in claim 20, characterized in that, The first rotating shaft assembly (2) includes a first swing arm (245) and a second swing arm (246). The second swing arm (246) includes a rotating end (2461) and a sliding end (2462). The rotating end (2461) of the second swing arm (246) is rotatably connected to the main shaft (21) of the first rotating shaft assembly (2), and the sliding end (2462) of the second swing arm (246) is slidably connected to the second housing (12). The first moving member (20) includes the second swing arm (246). When the first housing (11) and the second housing (12) are in the open state, the first end (411) of the connector (41) is close to the sliding end (2462) of the second swing arm (246) of the first rotating shaft assembly (2). When the second housing (12) and the third housing (13) are in the open state, and the first housing (11) and the second housing (12) are folded relative to each other from the open state to the first closed state through the first pivot assembly (2), the first swing arm (245) and the second swing arm (246) of the first pivot assembly (2) are folded relative to each other, and the sliding end (2462) of the second swing arm (246) of the first pivot assembly (2) moves away from the second housing (12), forming the clearance space (2460) between the sliding end (2462) of the second swing arm (246) and the second housing (12).

22. The housing device (100) as claimed in any one of claims 17 to 21, characterized in that, The second rotating shaft assembly (3) includes a first fixing frame (341) and a second fixing frame (342); The first fixing frame (341) and the second housing (12) are fixedly connected; The second fixing frame (342) and the third housing (13) are fixedly connected; When the first housing (11) and the second housing (12) are in the open state, and the second housing (12) and the third housing (13) are in the open state, the first fixing frame (341) and the second fixing frame (342) of the second rotating shaft assembly (3) are unfolded relative to each other, and the first fixing frame (341) and the main shaft (31) of the second rotating shaft assembly (3) are fixedly connected through the second end (412) of the connector (41). During the process of the first housing (11) and the second housing (12) being in the open state and the first housing (11) and the second housing (12) being folded from the open state to the first closed state, the second end (412) of the connector (41) moves away from the main shaft (31) of the second rotating shaft assembly (3); When the first housing (11) and the second housing (12) are in the first closed state, the main shaft (31) of the first fixing frame (341) and the second rotating shaft assembly (3) can move relative to each other.

23. The housing device (100) as claimed in claim 22, characterized in that, The first fixing frame (341) of the second rotating shaft assembly (3) is provided with a through hole (3415), and the opening of the groove (313) faces the through hole (3415) of the first fixing frame (341) of the second rotating shaft assembly (3). When the first housing (11) and the second housing (12) are in the open state, and the second housing (12) and the third housing (13) are in the open state, the second end (412) of the connector (41) passes through the through hole (3415) through the first fixing frame (341) of the second rotating shaft assembly (3) and is inserted into the groove (313) to fix the first fixing frame (341) and the main shaft (31) of the second rotating shaft assembly (3). During the process of the second housing (12) and the third housing (13) being in the open state, and the first housing (11) and the second housing (12) being folded from the open state to the first closed state, the second end (412) of the connector (41) moves away from the groove (313); When the first housing (11) and the second housing (12) are in the first closed state, the second end (412) of the connector (41) leaves the groove (313), and the main shaft (31) of the first fixing frame (341) and the second rotating shaft assembly (3) can move relative to each other.

24. The housing device (100) as claimed in any one of claims 17 to 23, characterized in that, The housing device (100) further includes a drive member (42), and at least one of the connector (41), the first rotating shaft assembly (2), the second rotating shaft assembly (3) or the second housing (12) is provided with the drive member (42). When the second housing (12) and the third housing (13) are in the open state, and the first housing (11) and the second housing (12) are folded relative to each other from the open state to the first closed state through the first rotating shaft assembly (2), the driving member (42) is used to drive the second end (412) of the connector (41) to move away from the second rotating shaft assembly (3).

25. The housing device as claimed in claim 24, characterized in that, The driving component is an elastic component, and the driving component is disposed at the second end of the connecting component. One end of the driving component abuts against the connecting component, and the other end of the driving component abuts against the second rotating shaft assembly.

26. The housing device as claimed in claim 24, characterized in that, The driving component includes a first magnetic component (421b) and a second magnetic component (422b). The first magnetic component (421b) and the second magnetic component (422b) are respectively fixed to the sliding end of the second swing arm of the first rotating shaft assembly and the first end of the connecting member. There is an attractive force between the first magnetic component (421b) and the second magnetic component (422b). Under the action of the attractive force, the first end of the connecting member moves with the sliding end of the second swing arm of the first rotating shaft assembly.

27. The housing device as claimed in claim 24, characterized in that, The driving component includes a third magnetic component (423c) and a fourth magnetic component (424c). The third magnetic component (423c) is fixed to the second housing and movably sleeved on the connecting component. The fourth magnetic component (424c) is fixedly sleeved on the connecting component and located on the side of the third magnetic component (423c) closer to the second rotating shaft assembly. There is an attractive force between the third magnetic component (423c) and the fourth magnetic component (424c). When the first housing and the second housing are in the open state, and the second housing and the third housing are in the open state, there is a gap between the third magnetic element (423c) and the fourth magnetic element (424c); During the process of the first housing and the second housing folding from the open state to the first closed state through the first pivot assembly, the fourth magnetic element (424c) moves towards the third magnetic element (423c) under the action of attraction, causing the second end of the connector to move away from the second pivot assembly.

28. The housing device as claimed in claim 24, characterized in that, The driving component includes a third magnetic component (423c) and a fourth magnetic component (424c). The third magnetic component (423c) is fixed to the second housing and movably sleeved on the connecting component. The fourth magnetic component (424c) is fixedly sleeved on the connecting component and located on the side of the third magnetic component (423c) away from the second rotating shaft assembly. There is a repulsive force between the third magnetic component (423c) and the fourth magnetic component (424c). When the first housing and the second housing are in the open state, and the second housing and the third housing are in the open state, the third magnetic element (423c) and the fourth magnetic element (424c) are in contact or have a gap between them; during the process of the first housing and the second housing folding from the open state to the first closed state through the first rotating shaft assembly, the fourth magnetic element (424c) moves away from the third magnetic element (423c) under the action of repulsive force, causing the second end of the connector to move away from the second rotating shaft assembly.

29. The housing device as claimed in claim 24, characterized in that, The driving component includes a first rotating end (421d) and a second rotating end (422d). The first rotating end (421d) of the driving component is rotatably connected to the sliding end of the second swing arm of the first rotating shaft assembly, and the second rotating end (422d) of the driving component is rotatably connected to the first end of the connecting component.

30. The housing device (100d) as claimed in any one of claims 17 to 29, characterized in that, The first pivot assembly (2) further includes a first support member (22) and a second support member (23), wherein the first support member (22) can be unfolded or folded relative to each other; During the process of the first pivot assembly (2) folding from the open state to the closed state, the first support member (22) and the second support member (23) fold relative to each other. The first support member (22) and the second support member (23) are located on the same side of the main shaft (21). The distance between the first support member (22) and the second support member (23) increases in the direction closer to the main shaft (21). The first support member (22), the second support member (23) and the main shaft (21) together form the screen-accommodating space (210).

31. The housing device (100d) as claimed in any one of claims 17 to 30, characterized in that, The second rotating shaft assembly (3) includes a first fixing frame (341) and a second fixing frame (342). The first fixing frame (341) and the second fixing frame (342) are respectively connected to both sides of the main shaft (31). The first fixing frame (341) and the second fixing frame (342) can be unfolded or folded relative to each other. During the process of the second rotating shaft assembly (3) folding from the open state to the first closed state, the first fixing frame (341) and the second fixing frame (342) fold relative to each other. The first fixing frame (341) and the second fixing frame (342) are located on the same side of the main shaft (31). The first fixing frame (341) is parallel to the second fixing frame (342). The first fixing frame (341), the second fixing frame (342) and the main shaft (31) together form the screen-accommodating space (310).

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