Folding terminal device

Abstract

The embodiment of the application relates to the technical field of electronic equipment, and provides a folding terminal device, which comprises a rotating shaft assembly, a middle frame, a first sensor, a second sensor and a driving assembly, the rotating shaft assembly comprises a rotating shaft main body, a secondary swing arm and a connecting block; the middle frame is fixed with the connecting block; and the driving assembly is electrically connected to the first sensor and the second sensor. When the first sensor detects that the middle frame is in a closed folding state, and the second sensor detects that the middle frame is in a free-falling state, the driving assembly is triggered to start to provide corresponding driving force, or the driving assembly provides driving force for moving the secondary swing arm relative to the connecting block, or the driving assembly provides driving force for keeping the secondary swing arm static relative to the connecting block, finally, a touch screen on the folding terminal device is protected from extrusion deformation and even damage.

Description

Technical Field

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

[0002] Among related products, foldable terminal devices are popular with users due to their foldability. However, foldable terminal devices also have related problems. Specifically, when a foldable terminal device is dropped while folded, the hinge cover is prone to hitting the ground first. Under the influence of gravity, the internal parts of the hinge are easily subjected to an upward force, which can cause the screen to deform or even be crushed and damaged. Summary of the Invention

[0003] This application provides a foldable terminal device to improve the technical problem that the screen of a foldable terminal device is easily squeezed, deformed, or even damaged when it is dropped in a folded state.

[0004] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0005] This application provides a foldable terminal device, including:

[0006] A rotating shaft assembly includes a rotating shaft body, a secondary swing arm rotatably connected to the rotating shaft body at one end, and a connecting block, with the other end of the secondary swing arm slidably connected to the connecting block;

[0007] The middle frame is fixed with a connecting block. The middle frame rotates around the axis relative to the main body of the rotating shaft through the auxiliary swing arm to achieve opening and closing.

[0008] The first sensor is used to detect the position of the middle frame relative to the main body of the pivot.

[0009] The second sensor is used to detect changes in the acceleration and / or angular velocity of the middle frame; and,

[0010] A drive assembly electrically connected to a first sensor and a second sensor, the drive assembly being used to provide a driving force for the secondary swing arm to move relative to the connecting block, or, the drive assembly being used to provide a driving force for the secondary swing arm to remain stationary relative to the connecting block;

[0011] When the first actuator detects that the middle frame is in a folded state relative to the main body of the pivot, and when the second sensor detects that the middle frame is in a free-falling state, the drive assembly is activated to provide the corresponding driving force.

[0012] Understandably, the main body of the pivot is the main part of the pivot assembly. There should be two secondary swing arms, and the number of connecting blocks should correspond to the number of secondary swing arms. The connecting blocks are fixed on the middle frame and should rotate around the axis synchronously with the middle frame. The connecting blocks may have a sliding groove adapted to the secondary swing arms, or the connecting blocks may have a guide rail adapted to the secondary swing arms.

[0013] The middle frame is the main supporting part of the foldable terminal device. The touch screen, motherboard and battery are all located in the middle frame. In particular, the touch screen needs to be limited by the middle frame, so there should be two middle frames. The middle frame and the connecting block are fixedly connected. Therefore, the middle frame and the connecting block slide synchronously relative to the secondary swing arm, so as to meet the movement trajectory of the main body rotating and opening around the pivot.

[0014] The first sensor is used to detect the position of the middle frame relative to the pivot body. For example, the first sensor is used to detect the position of the middle frame after it has rotated relative to the pivot body, that is, when the two middle frames are in a closed folded state. Here, the first sensor is a position sensor, and the position sensor is set on one of the middle frames. However, when the two middle frames are in a closed folded state, the position sensor is triggered. Alternatively, the first sensor is an infrared sensor, which includes a transmitter and a receiver. The transmitter is set on one of the middle frames, and the receiver is set on the other middle frame. Similarly, when the two middle frames are in a closed folded state, the receiver can receive a signal or receive the signal for a shorter time to determine the position of the middle frame relative to the pivot body.

[0015] The second sensor is used to detect the acceleration, angular velocity, or both of the mid-frame. The second sensor is used to determine whether the mid-frame is in a drop state, that is, whether the entire foldable terminal device is in a drop state. For example, the second sensor can be an accelerometer, a gyroscope, etc. When the acceleration of the mid-frame is detected to be approximately 0G, it can be determined that the foldable terminal device is in free fall. The gyroscope detects changes in angular velocity to help determine the rotational attitude of the foldable terminal device.

[0016] The drive assembly is a power source component that receives signals from the first and second sensors to perform an opening action. Specifically, when the first sensor detects that the mid-frame is in a closed, folded state, and the second sensor detects that the mid-frame is in a free-falling state, the drive assembly is activated, outputting torque to move the secondary swing arm relative to the connecting block, or providing driving force to keep them relatively stationary. It's important to note that when a foldable terminal device falls in its folded state, the hinge assembly is highly likely to hit the ground first. After the hinge assembly touches the ground, the mid-frame moves relative to the secondary swing arm within the hinge assembly, potentially squeezing the touchscreen on the mid-frame. Therefore, when the drive assembly provides the driving force for the secondary swing arm to move relative to the connecting block, the mid-frame is in an unfolded state relative to the hinge assembly. At this time, the foldable terminal device is in a partially or fully unfolded state, reducing the probability of the hinge assembly hitting the ground and thus protecting the touchscreen on the mid-frame. In addition, the drive component can also provide a driving force to keep the secondary swing arm stationary relative to the connecting block. That is, after the drive component is turned on, it continuously outputs torque to keep the connecting block and the secondary swing arm relatively stationary. At this time, even if the pivot assembly touches the ground, there will be no relative movement between the middle frame and the pivot assembly, thus protecting the touch screen.

[0017] For example, the drive assembly may include an electromagnetic part and a magnetic part, wherein the electromagnetic part is disposed on the auxiliary swing arm and the magnetic part is disposed on the connecting block. When the first sensor detects that the middle frame is in a closed folded state and the second sensor detects that the middle frame is in a free-falling state, the electromagnetic part is energized, forming a repulsive force with the magnetic part, so as to realize relative movement between the connecting block and the auxiliary swing arm. At this time, the middle frame is in a partially unfolded or fully unfolded state relative to the pivot assembly.

[0018] Alternatively, the drive assembly may still include an electromagnetic part and a magnetic part, but when the electromagnetic part is energized, the electromagnetic part and the magnetic part form a mutual magnetic attraction, so that the connecting block and the secondary swing arm remain relatively stationary. At this time, even if the pivot assembly touches the ground and is impacted, the middle frame and the pivot assembly will not or will not move relative to each other, thus protecting the touch screen from being squeezed or from being squeezed to a lesser extent.

[0019] For example, the drive assembly may include a power unit and an actuator connected to the power unit. Here, the actuator is used to prevent the middle frame from rotating about the axis relative to the pivot assembly, or to prevent relative movement between the connecting block and the auxiliary swing arm. That is, when the first sensor detects that the middle frame is in a closed folded state, and when the second sensor detects that the middle frame is in a free-falling state, the power unit drives the actuator to perform one of the above two actions to prevent the middle frame from moving relative to the pivot assembly, thereby providing corresponding protection for the touch screen placed on the middle frame.

[0020] The technical solutions described in this application have at least the following technical effects or advantages:

[0021] The foldable terminal device provided in this application embodiment adds a first sensor, a second sensor, and a driving component. When the first sensor detects that the middle frame is in a closed folded state, and the second sensor detects that the middle frame is in a free-falling state, the driving component is triggered to start, so as to provide a corresponding driving force, or the driving component provides a driving force for the secondary swing arm to move relative to the connecting block, or the driving component provides a driving force for the secondary swing arm to remain stationary relative to the connecting block, so as to protect the touch screen on the foldable terminal device from being squeezed, deformed, or even damaged.

[0022] In some embodiments, when the drive component is used to provide the driving force for the movement of the secondary swing arm relative to the connecting block, the output end of the drive component is connected to the secondary swing arm to drive the secondary swing arm to rotate around the axis relative to the rotating shaft body, and the middle frame is in a partially unfolded state or a fully unfolded state.

[0023] By adopting the above technical solution, the torque output by the drive component pushes the secondary swing arm to move relative to the connecting block, so that the middle frame is in a partially or fully unfolded state relative to the pivot body. Here, the drive component may include telescopic mechanisms such as telescopic cylinders and telescopic swing arms, and the telescopic direction of the telescopic mechanism is the same as the opening and closing direction of the two middle frames. Therefore, when the telescopic mechanism is triggered, it can provide the driving force for the middle frame to unfold, so that the foldable terminal device unfolds autonomously during the drop, thereby reducing or even avoiding the pivot assembly hitting the ground first and causing the touch screen placed on the middle frame to be squeezed or damaged.

[0024] In some embodiments, the drive assembly includes a telescopic section, one end of which is hinged to one of the auxiliary swing arms and the other end of which is hinged to another auxiliary swing arm. The telescopic section is triggered by a first sensor and a second sensor.

[0025] By adopting the above technical solution, the extension direction of the telescopic part should be the same as the rotation and unfolding direction of the two auxiliary swing arms around the axis. Then, when the telescopic part is triggered, a pushing force is applied to the two auxiliary swing arms so that each auxiliary swing arm performs an axial unfolding action around the pivot body, ultimately causing the middle frame to be in a partially unfolded or fully unfolded state relative to the pivot body, thereby reducing or even avoiding the probability of the pivot body touching the ground.

[0026] In some embodiments, the drive assembly includes an electromagnetic part and a first magnetic part that is repelled by the electromagnetic part. The electromagnetic part is disposed on one of the auxiliary swing arm and the connecting block, and the first magnetic part is disposed on the other of the auxiliary swing arm and the connecting block. The electromagnetic part is triggered and activated by a first sensor and a second sensor.

[0027] By adopting the above technical solution, the electromagnetic part is energized after the first and second sensors are triggered, generating magnetism. The magnetism of the electromagnetic part is the same as that of the first electromagnetic part. Therefore, after the electromagnetic part is energized, the two form a repulsive force, which causes relative movement between the auxiliary swing arm and the connecting block. Similarly, the middle frame is partially or fully unfolded relative to the pivot body, thereby reducing or even avoiding the probability of the pivot body touching the ground.

[0028] In some embodiments, when the drive assembly is used to provide a driving force for the auxiliary swing arm to remain stationary relative to the connecting block, the drive assembly includes an electromagnetic part and a second magnetic part that is magnetically attracted to the electromagnetic part. The electromagnetic part is disposed on one of the auxiliary swing arm and the connecting block, and the second magnetic part is disposed on the other of the auxiliary swing arm and the connecting block. The electromagnetic part is triggered and activated by a first sensor and a second sensor.

[0029] By adopting the above technical solution, similarly, the electromagnetic part is energized after the first and second sensors are triggered, generating magnetism. The magnetism of the electromagnetic part is opposite to that of the first electromagnetic part. Therefore, after the electromagnetic part is energized, the two form a mutual attraction force, which keeps the auxiliary swing arm and the connecting block relatively stationary. At this time, after the rotating shaft body hits the ground, there is no relative movement or almost no relative movement between the auxiliary swing arm and the connecting block. Finally, the middle frame and the rotating shaft body are kept relatively still or have almost no relative movement, thereby preventing the touch screen on the middle frame from being squeezed or damaged.

[0030] In some embodiments, when the drive assembly is used to provide a driving force for the secondary swing arm to remain stationary relative to the connecting block, the drive assembly includes a power unit and a first stop member connected to the output end of the power unit. The power unit is triggered and started by a first sensor and a second sensor, and the first stop member is limited to the middle frame.

[0031] By adopting the above technical solution, the power unit is a power source output component triggered by the first sensor and the second sensor, and the first stop component is an execution component. Under the drive of the power unit, it limits the middle frame to prevent the middle frame from rotating around the axis relative to the rotating shaft body.

[0032] In some embodiments, the first stop member includes a first stop segment and a second stop segment connected to the first stop segment, a power unit is connected to the first stop segment, and a slot is provided on the middle frame for insertion and connection with the second stop segment.

[0033] By adopting the above technical solution, after the power unit is triggered and started, it drives the first stop segment to move. At the same time, the second stop segment moves synchronously with the first stop segment. Finally, the second stop segment is inserted into the slot on the middle frame to prevent the middle frame from rotating around the axis relative to the rotating shaft body.

[0034] In some embodiments, the shaft assembly further includes a support plate disposed on the shaft body and abutting against the second stop segment.

[0035] By adopting the above technical solution, the support plate provides additional auxiliary force to the second stop section, thereby reducing the output power of the power unit and further improving the connection stability between the middle frame and the pivot body during drop impact.

[0036] In some embodiments, when the drive assembly is used to provide a driving force for the auxiliary swing arm to remain stationary relative to the connecting block, the drive assembly includes a power unit and a second stop member connected to the output end of the power unit. The power unit is triggered and started by a first sensor and a second sensor, and the second stop member is limited to the auxiliary swing arm.

[0037] By adopting the above technical solution, the power unit is a power source output component triggered by the first and second sensors, and the second stop component is an execution component. Under the drive of the power unit, it limits the auxiliary swing arm to prevent the auxiliary swing arm from rotating around the axis relative to the main body of the rotating shaft.

[0038] In some embodiments, the second stop member includes a third stop segment and a fourth stop segment connected to the third stop segment, the power unit is connected to the third stop segment, and the fourth stop segment abuts against the auxiliary swing arm.

[0039] By adopting the above technical solution, after the power unit is triggered and started, it drives the third stop section to move. At the same time, the fourth stop section moves synchronously with the third stop section. Finally, the fourth stop section abuts against the auxiliary swing arm to prevent the auxiliary swing arm from rotating around the axis relative to the main body of the rotating shaft.

[0040] In some embodiments, the connecting block is further provided with an opening for the fourth stop segment to pass through, the fourth stop segment passing through the opening and abutting against the auxiliary swing arm.

[0041] By adopting the above technical solution, the fourth stop segment, after passing through the opening, abuts against the auxiliary swing arm to prevent the auxiliary swing arm from rotating around the axis relative to the main body of the rotating shaft. Attached Figure Description

[0042] Figure 1 This is a three-dimensional structural diagram of the foldable terminal device provided in the embodiments of this application;

[0043] Figure 2 A cross-sectional view of the foldable terminal device provided in Embodiment 1 of this application in its unfolded state;

[0044] Figure 3 A cross-sectional view of the foldable terminal device provided in Embodiment 1 of this application in a folded state;

[0045] Figure 4A schematic diagram showing the electrical connection between the first sensor, the second sensor, and the driving component of the foldable terminal device provided in the embodiments of this application;

[0046] Figure 5 This is a cross-sectional view of the foldable terminal device provided in Embodiment 2 of this application in a folded state;

[0047] Figure 6 A cross-sectional view of the foldable terminal device provided in Embodiment 3 of this application in a folded state;

[0048] Figure 7 This is a cross-sectional view of the foldable terminal device provided in Embodiment 4 of this application in a folded state;

[0049] Figure 8 This is a cross-sectional view of the foldable terminal device provided in Embodiment 5 of this application in its folded state.

[0050] The following are the labeling elements in the figure:

[0051] 100. Foldable terminal equipment;

[0052] 10. Rotating shaft assembly; 11. Rotating shaft body; 12. Secondary swing arm; 13. Connecting block; 14. Support plate; 13a. Opening;

[0053] 20. Mid-frame; 20a. Slot;

[0054] 31. First sensor; 32. Second sensor;

[0055] 40. Drive assembly; 40b. Electromagnetic part; 40c. First magnetic part; 40d. Second magnetic part; 40e. Power part; 40f. First stop member; 40f1. First stop segment; 40f2. Second stop segment; 40g. Second stop member; 40g1. Third stop segment; 40g2. Fourth stop segment;

[0056] 50. Touchscreen. Detailed Implementation

[0057] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application. The terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0059] In the description of this application, it should be understood that the terms "length", "width", "thickness", "top", "bottom", "inner", "outer", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0060] The terms "first," "second," "third," "fourth," "fifth," and "sixth," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. For example, "first deformation space" and "second deformation space" are merely used to distinguish different deformation spaces and do not limit their order. A first deformation space can also be named a second deformation space, and a second deformation space can also be named a first deformation space, without departing from the scope of the various described embodiments. Furthermore, the terms "first," "second," etc., do not imply that the indicated features must be different.

[0061] In this application, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0062] In this application, "and / or" is merely a way of describing the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0063] It should be noted that in this application, the words "in some embodiments," "exemplarily," and "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "in some embodiments," "exemplarily," or "for example" should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the words "in some embodiments," "exemplarily," and "for example" is intended to present the relevant concepts in a specific manner.

[0064] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments.

[0065] Among related products, foldable terminal devices are popular with users due to their foldability. Typically, a foldable terminal device includes at least two folding surfaces, that is, at least two mid-frames. For example, a double-folding terminal device includes two mid-frames, while a triple-folding terminal device includes three mid-frames. Regardless of the number of mid-frames, there is always one touchscreen. It is folded and stored after one or two folds. Adjacent mid-frames are connected by a hinge mechanism. To ensure smooth folding, there is a certain amount of play between the mid-frames and the hinge mechanism. However, the touchscreen's fold point is located at the fold point between the two mid-frames and corresponds to the hinge mechanism. Therefore, if a foldable terminal device is dropped while folded, the hinge cover is likely to hit the ground first. Under the influence of gravity, the internal parts of the hinge are subjected to an upward force, which can compress the touchscreen, causing deformation or even damage.

[0066] In view of this, embodiments of this application provide a foldable terminal device, which adds a first sensor, a second sensor, and a driving component. When the first sensor detects that the middle frame is in a closed folded state, and the second sensor detects that the middle frame is in a free-falling state, the driving component is triggered to start, so as to provide a corresponding driving force, or the driving component provides a driving force for the secondary swing arm to move relative to the connecting block, or the driving component provides a driving force for the secondary swing arm to remain stationary relative to the connecting block, so as to protect the touch screen on the foldable terminal device from being squeezed, deformed, or even damaged.

[0067] The foldable terminal device provided in this application belongs to the category of foldable electronic devices, that is, a type of electronic device that can be folded and unfolded. Foldable terminal devices can be mobile phones, tablets, laptops, notebook PCs, personal digital assistants (PDAs), wearable devices (such as watches), in-vehicle devices, augmented reality (AR) / virtual reality (VR) devices, point of sale (POS) terminals, dashcams, walkie-talkies, cameras, displays, etc., but are not limited to these.

[0068] Please see Figure 1 , Figure 1 This illustration shows a three-dimensional structural diagram of a foldable terminal device in its unfolded state, according to some embodiments of this application. In these embodiments, a mobile phone is used as an example for description.

[0069] Please refer to Figures 1 to 3 This application provides a foldable terminal device 100, including a hinge assembly 10, a middle frame 20, a first sensor 31, a second sensor 32, and a drive assembly 40.

[0070] The pivot assembly 10 includes a pivot body 11, a secondary swing arm 12 rotatably connected to the pivot body 11 at one end, and a connecting block 13. The other end of the secondary swing arm 12 is slidably connected to the connecting block 13. The middle frame 20 is fixed with the connecting block 13. The middle frame 20 rotates around the pivot body 11 relative to the secondary swing arm 12 to achieve opening and closing. A first sensor 31 is used to detect the position state of the middle frame 20 relative to the pivot body 11. A second sensor 32 is used to detect the acceleration and / or angular velocity changes of the middle frame 20. A drive assembly 40 is electrically connected to the first sensor 31 and the second sensor 32. The drive assembly 40 is used to provide a driving force for the secondary swing arm 12 to move relative to the connecting block 13, or to provide a driving force for the secondary swing arm 12 to remain stationary relative to the connecting block 13. The drive assembly 40 is activated to provide the corresponding driving force when the first actuator detects that the middle frame 20 is in a folded state relative to the pivot body 11, and when the second sensor 32 detects that the middle frame 20 is in a free-falling state.

[0071] Understandably, the main body 11 of the rotating shaft is the main part of the rotating shaft assembly 10. There should be two auxiliary swing arms 12. The number of connecting blocks 13 corresponds to the number of auxiliary swing arms 12. The connecting blocks 13 are fixed on the middle frame 20 and should rotate around the shaft synchronously with the middle frame 20. The connecting blocks 13 may have a sliding groove adapted to the auxiliary swing arms 12, or the connecting blocks 13 may have a guide rail adapted to the auxiliary swing arms 12.

[0072] The middle frame 20 is the main supporting part of the foldable terminal device 100. The touch screen 50, motherboard and battery are all located in the middle frame 20. In particular, the touch screen 50 needs to be limited by the middle frame 20, so there should be two middle frames 20. The middle frame 20 and the connecting block 13 are fixedly connected. Therefore, the middle frame 20 and the connecting block 13 slide synchronously relative to the auxiliary swing arm 12, thereby satisfying the movement trajectory of rotating and opening around the main body 11 of the pivot.

[0073] The first sensor 31 is used to detect the position of the middle frame 20 relative to the pivot body 11. For example, the first sensor 31 is used to detect the position of the middle frame 20 after it has rotated relative to the pivot body 11, that is, when the two middle frames 20 are in a closed folded state. Here, the first sensor 31 is a position sensor, and the position sensor is set on one of the middle frames 20. However, when the two middle frames 20 are in a closed folded state, the position sensor is triggered. Alternatively, the first sensor 31 is an infrared sensor, which includes a transmitter and a receiver. The transmitter is set on one of the middle frames 20, and the receiver is set on the other middle frame 20. Similarly, when the two middle frames 20 are in a closed folded state, the receiver can receive a signal or receive the signal for a shorter time to determine the position of the middle frame 20 relative to the pivot body 11.

[0074] The second sensor 32 is used to detect the acceleration, angular velocity, or both of the middle frame 20. The second sensor 32 is used to determine whether the middle frame 20 is in a falling state, that is, whether the entire foldable terminal device 100 is in a falling state. For example, the second sensor 32 can be an accelerometer, a gyroscope, etc. When the acceleration of the middle frame 20 is detected to be approximately 0G, it can be determined that the foldable terminal device 100 is in a free fall state. The gyroscope detects changes in angular velocity to help determine the rotational attitude of the foldable terminal device 100.

[0075] The drive assembly 40 is a power source assembly that can receive signals from the first sensor 31 and the second sensor 32 to perform an opening action. That is, when the first sensor 31 detects that the middle frame 20 is in a closed folded state, and the second sensor 32 detects that the middle frame 20 is in a free-falling state, the drive assembly 40 is opened and outputs torque to drive the auxiliary swing arm 12 to move relative to the connecting block 13, or to provide driving force to keep the two relatively stationary. Here, it should be noted that when the foldable terminal device 100 falls in the folded state, the hinge assembly 10 is likely to hit the ground first. After the hinge assembly 10 hits the ground, the middle frame 20 moves relative to the secondary swing arm 12 in the hinge assembly 10, thereby squeezing the touch screen 50 on the middle frame 20. Therefore, when the drive assembly 40 provides the driving force for the secondary swing arm 12 to move relative to the connecting block 13, the middle frame 20 is in the unfolded state relative to the hinge assembly 10. At this time, the foldable terminal device 100 is in a partially unfolded or fully unfolded state to reduce the probability of the hinge assembly 10 hitting the ground, thereby protecting the touch screen 50 on the middle frame 20. Furthermore, the drive assembly 40 can also provide a driving force to keep the secondary swing arm 12 stationary relative to the connecting block 13. That is, after the drive assembly 40 is turned on, it continuously outputs torque to keep the connecting block 13 and the secondary swing arm relatively stationary. At this time, even if the pivot assembly 10 touches the ground, there will be no relative movement between the middle frame 20 and the pivot assembly 10, thereby protecting the touch screen 50.

[0076] For example, the drive assembly 40 may include an electromagnetic part and a magnetic part, wherein the electromagnetic part is disposed on the auxiliary swing arm 12 and the magnetic part is disposed on the connecting block 13. When the first sensor 31 detects that the middle frame 20 is in a closed folded state and the second sensor 32 detects that the middle frame 20 is in a free-falling state, the electromagnetic part is energized, forming a repulsive force with the magnetic part, so as to realize relative movement between the connecting block 13 and the auxiliary swing arm 12. At this time, the middle frame 20 is in a partially unfolded or fully unfolded state relative to the rotating shaft assembly 10.

[0077] Alternatively, the drive assembly 40 may still include an electromagnetic part and a magnetic part. However, when the electromagnetic part is energized, the electromagnetic part and the magnetic part form a mutual magnetic attraction, thereby keeping the connecting block 13 and the secondary swing arm 12 relatively stationary. At this time, even if the pivot assembly 10 touches the ground and is impacted, the middle frame 20 and the pivot assembly 10 will not or will not move relative to each other, thereby protecting the touch screen 50 from being squeezed or from being squeezed to a lesser degree.

[0078] For example, the drive assembly 40 may include a power unit and an execution unit connected to the power unit. Here, the execution unit is used to prevent the middle frame 20 from rotating about the axis relative to the pivot assembly 10, or to prevent relative movement between the connecting block 13 and the auxiliary swing arm 12. That is, when the first sensor 31 detects that the middle frame 20 is in a closed folded state, and the second sensor 32 detects that the middle frame 20 is in a free-falling state, the power unit drives the execution unit to perform one of the above two actions to prevent the middle frame 20 from moving relative to the pivot assembly 10, thereby providing corresponding protection for the touch screen 50 placed on the middle frame 20.

[0079] The foldable terminal device 100 provided in this application embodiment is equipped with a first sensor 31, a second sensor 32, and a driving component 40. When the first sensor 31 detects that the middle frame 20 is in a closed folded state, and the second sensor 32 detects that the middle frame 20 is in a free-falling state, the driving component 40 is triggered to start, so as to provide a corresponding driving force, or the driving component 40 provides a driving force for the secondary swing arm 12 to move relative to the connecting block 13, or the driving component 40 provides a driving force for the secondary swing arm 12 to remain stationary relative to the connecting block 13, so as to protect the touch screen 50 on the foldable terminal device 100 from being squeezed, deformed, or even damaged.

[0080] Please refer to Figure 5 In some embodiments, when the drive assembly 40 is used to provide the driving force for the movement of the secondary swing arm 12 relative to the connecting block 13, the output end of the drive assembly 40 is connected to the secondary swing arm 12 to drive the secondary swing arm 12 to rotate around the axis relative to the rotating shaft body 11, and the middle frame 20 is in a partially unfolded state or a fully unfolded state.

[0081] Understandably, the drive assembly 40 can be in the form of a telescopic cylinder, a telescopic rod assembly, or a push mechanism, which can directly output the force that drives the auxiliary swing arm 12 to rotate around the shaft body 11. Alternatively, the drive assembly 40 can be in the form of an electromagnetic assembly, which indirectly enables the auxiliary swing arm 12 to rotate around the shaft body 11 through magnetic force.

[0082] Thus, the torque output by the drive assembly 40 pushes the secondary swing arm 12 to move relative to the connecting block 13, causing the middle frame 20 to be in a partially or fully unfolded state relative to the pivot body 11. Here, the drive assembly 40 may include a telescopic mechanism such as a telescopic cylinder and a telescopic swing arm, and the telescopic direction of the telescopic mechanism is the same as the opening and closing direction of the two middle frames 20. Therefore, when the telescopic mechanism is triggered, it can provide a driving force for the middle frame 20 to unfold, so that the foldable terminal device 100 unfolds autonomously during the fall, thereby reducing or even avoiding the pivot assembly 10 hitting the ground first and causing the touch screen 50 placed on the middle frame 20 to be squeezed or damaged.

[0083] In some embodiments, the drive assembly 40 includes a telescopic section (not shown), one end of which is hinged to one of the auxiliary swing arms 12 and the other end of which is hinged to another auxiliary swing arm 12. The telescopic section is triggered and activated by a first sensor 31 and a second sensor 32.

[0084] Understandably, the telescopic part is triggered to perform a telescopic reciprocating motion, thereby pushing one of the auxiliary swing arms 12 to unfold or retract relative to the other auxiliary swing arm 12. Here, both ends of the telescopic part are telescopic, that is, the two corresponding auxiliary swing arms 12 unfold synchronously, or one end of the telescopic part is telescopic, that is, one of the auxiliary swing arms 12 unfolds relative to the other auxiliary swing arm 12.

[0085] Thus, the extension direction of the telescopic part should be the same as the rotational unfolding direction of the two auxiliary swing arms 12 around the axis. When the telescopic part is triggered, a pushing force is applied to the two auxiliary swing arms 12 so that each auxiliary swing arm 12 performs an axial unfolding action around the pivot body 11, ultimately causing the middle frame 20 to be in a partially unfolded or fully unfolded state relative to the pivot body 11, thereby reducing or even avoiding the probability of the pivot body 11 touching the ground.

[0086] Please refer to Figure 5 In some embodiments, the drive assembly 40 includes an electromagnetic part 40b and a first magnetic part 40c that is repelled by the electromagnetic part 40b. The electromagnetic part 40b is disposed on one of the auxiliary swing arm 12 and the connecting block 13, and the first magnetic part 40c is disposed on the other of the auxiliary swing arm 12 and the connecting block 13. The electromagnetic part 40b is triggered and activated by a first sensor 31 and a second sensor 32.

[0087] Understandably, the magnetism of the electromagnetic part 40b after being energized is repulsive to the magnetism of the first magnetic part 40c. For example, if the electromagnetic part 40b is the N pole after being energized, then the first magnetic part 40c is the N pole; or, if the electromagnetic part 40b is the S pole after being energized, then the first magnetic part 40c is the N pole.

[0088] For example, an energized coil may be embedded in the secondary swing arm 12, and a magnetic layer may be provided on the inner wall of the connecting block 13; or, an energized coil may be embedded in the inner wall of the groove of the connecting block 13, and a magnetic layer may be provided on the surface of the secondary swing arm 12.

[0089] Thus, when the electromagnetic part 40b is triggered by the first sensor 31 and the second sensor 32, it is energized and generates magnetism. The magnetism of the electromagnetic part 40b is the same as that of the first electromagnetic part 40b. Therefore, after the electromagnetic part 40b is energized, a repulsive force is formed between the two, which causes relative movement between the auxiliary swing arm 12 and the connecting block 13. Similarly, the middle frame 20 is partially or fully extended relative to the pivot body 11, so as to reduce or even avoid the probability of the pivot body 11 touching the ground.

[0090] Please refer to Figure 6 In some embodiments, when the drive assembly 40 is used to provide a driving force for the auxiliary swing arm 12 to remain stationary relative to the connecting block 13, the drive assembly 40 includes an electromagnetic part 40b and a second magnetic part 40d that is magnetically attracted to the electromagnetic part 40b. The electromagnetic part 40b is disposed on one of the auxiliary swing arm 12 and the connecting block 13, and the second magnetic part 40d is disposed on the other of the auxiliary swing arm 12 and the connecting block 13. The electromagnetic part 40b is triggered and activated by a first sensor 31 and a second sensor 32.

[0091] Understandably, the magnetism of the electromagnetic part 40b after being energized attracts the magnetism of the two magnetic parts. For example, if the electromagnetic part 40b is the N pole after being energized, then the first magnetic part 40c is the S pole, or if the electromagnetic part 40b is the N pole after being energized, then the first magnetic part 40c is the S pole.

[0092] For example, an energized coil may be embedded in the secondary swing arm 12, and a magnetic layer may be provided on the inner wall of the connecting block 13; or, an energized coil may be embedded in the inner wall of the groove of the connecting block 13, and a magnetic layer may be provided on the surface of the secondary swing arm 12.

[0093] Similarly, when the first sensor 31 and the second sensor 32 are triggered, the electromagnetic part 40b is energized and generates magnetism. The magnetism of the electromagnetic part 40b is opposite to that of the first electromagnetic part 40b. Therefore, when the electromagnetic part 40b is energized, the two form a mutual attraction force, which keeps the auxiliary swing arm 12 and the connecting block 13 relatively stationary. At this time, after the rotating shaft body 11 hits the ground, there is no relative movement or almost no relative movement between the auxiliary swing arm 12 and the connecting block 13. Finally, the middle frame 20 and the rotating shaft body 11 are kept relatively still or have almost no relative movement, thereby preventing the touch screen 50 on the middle frame 20 from being squeezed or damaged.

[0094] Please refer to Figure 7 In some embodiments, when the drive assembly 40 is used to provide a driving force for the secondary swing arm 12 to remain stationary relative to the connecting block 13, the drive assembly 40 includes a power unit 40e and a first stop member 40f connected to the output end of the power unit 40e. The power unit 40e is triggered and started by a first sensor 31 and a second sensor 32, and the first stop member 40f is limited to the middle frame 20.

[0095] Understandably, the power unit 40e can be a motor, a telescopic cylinder, or a push mechanism, etc., and the first stop member 40f is an actuating component used to limit the middle frame 20. For example, the structure of the first stop member 40f can be a columnar structure, a block structure, or a strip structure. The middle frame 20 is provided with a hole structure, a groove structure, etc. that cooperate with the first stop member 40f.

[0096] For example, the power unit 40e includes a telescopic cylinder, the first stop member 40f includes a columnar structure, and the middle frame 20 has a slot structure. Then, after the telescopic cylinder is triggered and started, it drives the columnar structure to be inserted into the slot structure, so that the middle frame 20 structure cannot rotate around the axis relative to the rotating shaft body 11.

[0097] Thus, the power unit 40e is a power source output component triggered by the first sensor 31 and the second sensor 32, and the first stop member 40f is an execution component. Driven by the power unit 40e, it limits the middle frame 20 to prevent the middle frame 20 from rotating around the axis relative to the rotating shaft body 11.

[0098] Please refer to Figure 7 In some embodiments, the first stop member 40f includes a first stop segment 40f1 and a second stop segment 40f2 connected to the first stop segment 40f1, the power unit 40e is connected to the first stop segment 40f1, and the middle frame 20 is provided with a slot 20a that is plugged into and connected to the second stop segment 40f2.

[0099] Understandably, the first stop segment 40f1 is the part of the first stop member 40f that connects to the power unit 40e, and the second stop member is the part of the first stop member 40f that is limited and engaged with the middle frame 20. Furthermore, according to the actual spatial layout, the extension direction of the first stop segment 40f1 forms an angle with the extension direction of the second stop segment 40f2.

[0100] For example, such as Figure 7 As shown, the first stop segment 40f1 is in the shape of an "I" and the second stop segment 40f2 is also in the shape of an "I". Furthermore, the first stop segment 40f1 and the second stop segment 40f2 are perpendicularly connected, making the first stop component 40f as a whole L-shaped, thereby realizing the reversal of the corresponding force transmission to adapt to the spatial position setting requirements between the middle frame 20 and the rotating shaft body 11.

[0101] Thus, after the power unit 40e is triggered and started, it drives the first stop segment 40f1 to move. At the same time, the second stop segment 40f2 moves synchronously with the first stop segment 40f1. Finally, the second stop segment 40f2 is inserted into the slot 20a on the middle frame 20 to prevent the middle frame 20 from rotating around the axis relative to the rotating shaft body 11.

[0102] Please refer to Figure 7 In some embodiments, the rotating shaft assembly 10 further includes a support plate 14, which is disposed on the rotating shaft body 11 and abuts against the second stop segment 40f2.

[0103] Understandably, the support plate 14 is an additional structural component providing the first stop 40f to increase the drop height of the foldable terminal device 100. The support plate 14 can be connected to the pivot body 11 via fasteners such as screws and pins. Furthermore, the support plate 14 may be provided with an abutment surface that mates with the second stop segment 40f2 to provide an auxiliary force that limits the second stop segment 40f2 to the middle frame 20.

[0104] Thus, by using the support plate 14 to provide additional auxiliary force to the second stop section 40f2, the output power of the power unit 40e can be reduced, and the connection stability between the middle frame 20 and the pivot body 11 can be further improved during drop impact.

[0105] Please refer to Figure 8 In some embodiments, when the drive assembly 40 is used to provide a driving force for the auxiliary swing arm 12 to be stationary relative to the connecting block 13, the drive assembly 40 includes a power unit 40e and a second stop member 40g connected to the output end of the power unit 40e. The power unit 40e is triggered and started by the first sensor 31 and the second sensor 32, and the second stop member 40g is limited to the auxiliary swing arm 12.

[0106] Understandably, the power unit 40e can be a motor, a telescopic cylinder, or a push mechanism, etc., and the second stop member 40g is an actuating component used to limit the auxiliary swing arm 12. For example, the structure of the second stop member 40g can be a columnar structure, a block structure, or a strip structure, and the auxiliary swing arm 12 is limited by abutment, insertion, snap-fit, etc.

[0107] For example, the power unit 40e includes a telescopic cylinder, the second stop member 40g includes a columnar structure, and the connecting block 13 has a groove structure. Then, after the telescopic cylinder is triggered and started, it drives the columnar structure to slide in the groove structure, and finally, it abuts against the secondary swing arm 12, so that there is no longer relative sliding between the secondary swing arm 12 and the connecting block 13.

[0108] Thus, the power unit 40e is a power source output component triggered by the first sensor 31 and the second sensor 32, and the second stop member 40g is an execution component. Driven by the power unit 40e, it limits the auxiliary swing arm 12 to prevent the auxiliary swing arm 12 from rotating around the axis relative to the rotating shaft body 11.

[0109] Please refer to Figure 8In some embodiments, the second stop member 40g includes a third stop segment 40g1 and a fourth stop segment 40g2 connected to the third stop segment 40g1, the power unit 40e is connected to the third stop segment 40g1, and the fourth stop segment 40g2 abuts against the auxiliary swing arm 12.

[0110] Understandably, the third stop segment 40g1 is the part of the second stop member 40g that connects to the power unit 40e, and the fourth stop member is the part of the second stop member 40g that is limited and engaged with the auxiliary swing arm 12. Furthermore, according to the actual spatial layout, the extension direction of the third stop segment 40g1 forms an angle with the extension direction of the fourth stop segment 40g2.

[0111] For example, such as Figure 8 As shown, the third stop segment 40g1 is L-shaped and the fourth stop segment 40g2 is I-shaped. Furthermore, the third stop segment 40g1 and the fourth stop segment 40g2 are perpendicularly connected, making the second stop component 40g as a whole U-shaped, thereby realizing the reversal of the corresponding force transmission to meet the requirements of the spatial position setting between the connecting block 13 and the auxiliary swing arm 12.

[0112] Thus, after the power unit 40e is triggered and started, it drives the third stop segment 40g1 to move. At the same time, the fourth stop segment 40g2 moves synchronously with the third stop segment 40g1. Finally, the fourth stop segment 40g2 abuts against the auxiliary swing arm 12 to prevent the auxiliary swing arm 12 from rotating around the axis relative to the rotating shaft body 11.

[0113] Please refer to Figure 8 In some embodiments, the connecting block 13 is also provided with an opening 13a for the fourth stop segment 40g2 to pass through, the fourth stop segment 40g2 passing through the opening 13a and abutting against the auxiliary swing arm 12.

[0114] Understandably, after the fourth stop segment 40g2 passes through the opening 13a, it abuts against the auxiliary swing arm 12 to prevent the auxiliary swing arm 12 from rotating around the axis relative to the rotating shaft body 11.

[0115] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any changes 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.

Claims

1. A foldable terminal device, characterized in that, include: A rotating shaft assembly, comprising a rotating shaft body, a secondary swing arm rotatably connected at one end to the rotating shaft body, and a connecting block, wherein the other end of the secondary swing arm is slidably connected to the connecting block; The middle frame is fixed with the connecting block, and the middle frame rotates about the axis relative to the main body of the rotating shaft through the auxiliary swing arm to realize opening and closing; A first sensor is used to detect the position of the middle frame relative to the rotating shaft body; The second sensor is used to detect changes in the acceleration and / or angular velocity of the middle frame; as well as, A drive assembly electrically connected to the first sensor and the second sensor, the drive assembly being used to provide a driving force for the auxiliary swing arm to move relative to the connecting block, or the drive assembly being used to provide a driving force for the auxiliary swing arm to remain stationary relative to the connecting block; When the first actuator detects that the middle frame is in a folded state relative to the rotating shaft body, and when the second sensor detects that the middle frame is in a free-falling state, the drive assembly is activated to provide corresponding driving force.

2. The foldable terminal device according to claim 1, characterized in that: When the drive component is used to provide the driving force for the movement of the secondary swing arm relative to the connecting block, the output end of the drive component is connected to the secondary swing arm to drive the secondary swing arm to rotate around the axis relative to the rotating shaft body, and the middle frame is in a partially unfolded state or a fully unfolded state.

3. The foldable terminal device according to claim 2, characterized in that: The drive assembly includes a telescopic section, one end of which is hinged to one of the auxiliary swing arms and the other end of which is hinged to the other auxiliary swing arm. The telescopic section is triggered and activated by the first sensor and the second sensor.

4. The foldable terminal device according to claim 2, characterized in that: The drive assembly includes an electromagnetic part and a first magnetic part that is repelled by the electromagnetic part. The electromagnetic part is disposed on one of the auxiliary swing arm and the connecting block, and the first magnetic part is disposed on the other of the auxiliary swing arm and the connecting block. The electromagnetic part is triggered and activated by the first sensor and the second sensor.

5. The foldable terminal device according to claim 1, characterized in that: When the drive assembly is used to provide a driving force for the auxiliary swing arm to be stationary relative to the connecting block, the drive assembly includes an electromagnetic part and a second magnetic part that is magnetically attracted to the electromagnetic part. The electromagnetic part is disposed on one of the auxiliary swing arm and the connecting block, and the second magnetic part is disposed on the other of the auxiliary swing arm and the connecting block. The electromagnetic part is triggered and activated by the first sensor and the second sensor.

6. The foldable terminal device according to claim 1, characterized in that: When the drive assembly is used to provide a driving force for the auxiliary swing arm to be stationary relative to the connecting block, the drive assembly includes a power unit and a first stop member connected to the output end of the power unit. The power unit is triggered and started by the first sensor and the second sensor, and the first stop member is limited to the middle frame.

7. The foldable terminal device according to claim 6, characterized in that: The first stop member includes a first stop segment and a second stop segment connected to the first stop segment. The power unit is connected to the first stop segment, and the middle frame is provided with a slot for insertion and connection with the second stop segment.

8. The foldable terminal device according to claim 7, characterized in that: The rotating shaft assembly also includes a support plate, which is disposed on the rotating shaft body and abuts against the second stop segment.

9. The foldable terminal device according to claim 1, characterized in that: When the drive assembly is used to provide a driving force for the auxiliary swing arm to be stationary relative to the connecting block, the drive assembly includes a power unit and a second stop member connected to the output end of the power unit. The power unit is triggered and started by the first sensor and the second sensor, and the second stop member is limited to the auxiliary swing arm.

10. The foldable terminal device according to claim 9, characterized in that: The second stop member includes a third stop segment and a fourth stop segment connected to the third stop segment. The power unit is connected to the third stop segment, and the fourth stop segment abuts against the auxiliary swing arm.

11. The foldable terminal device according to claim 10, characterized in that: The connecting block is also provided with an opening for the fourth stop segment to pass through, and the fourth stop segment passes through the opening and abuts against the auxiliary swing arm.

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