Foldable electronic device

Abstract

The invention provides foldable electronic equipment. The foldable electronic equipment comprises a first shell, a second shell, a third shell, a first magnetic part and a second magnetic part, when the first shell and the second shell are folded oppositely and the second shell and the third shell are switched from relative unfolding to relative folding, the first magnetic part and the second magnetic part are stacked, adsorption force exists between the first magnetic part and the second magnetic part, and the adsorption force enables the first shell and the second shell to keep relative folding; the adsorption force between the first magnetic part and the second magnetic part is reduced or disappears, so that the first shell and the second shell are in an opening state, and the first shell and the second shell can be switched from relative folding to relative unfolding. Therefore, the closing convenience of the third shell is improved, and the third shell is not in contact with the first shell, so that the third shell is prevented from damaging the display screen. The convenience of relative unfolding of the first shell and the second shell is improved, and the second rotating mechanism and the display screen are prevented from being damaged when the first shell and the second shell are unfolded.

Description

Technical Field

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

[0002] Tri-fold foldable electronic devices, due to their large display area when unfolded and easy storage when folded, have become one of the most competitive products in the industry. Generally, a tri-fold foldable electronic device includes a first shell, a second shell, a third shell, and a flexible display screen. The first, second, and third shells are rotatably connected in sequence, with the display screen stacked on top of them. When the foldable electronic device is folded, the first, second, and third shells are stacked along the thickness direction. When the foldable electronic device is unfolded, the first, second, and third shells are arranged in sequence along the width direction.

[0003] When a foldable electronic device switches from an unfolded state to a folded state, the first and second housings rotate relative to each other, with the first housing stacked on top of the second housing. Then, the second and third housings rotate relative to each other, causing the third housing to stack on the side of the first housing facing away from the second housing. However, when the first housing is stacked on top of the second housing, under the tension of the display screen, the first and second housings will spring apart at a small angle. If, at this point, the second and third housings are rotated relative to each other again to fold the device, the third housing will come into contact with the first housing, potentially damaging the display screen.

[0004] There are solutions in the industry that incorporate components to keep the first and second housings folded and prevent them from popping open. However, current solutions make it difficult for the first and second housings to unfold when switching from a folded to an unfolded state in foldable electronic devices. Forcing the first and second housings to unfold can damage the rotating mechanism between them and also damage the display screen. Summary of the Invention

[0005] This application provides a foldable electronic device. When the foldable electronic device switches from an unfolded state to a folded state, it avoids contact between the first and third housings, thus preventing damage to the display screen. When the foldable electronic device switches from a folded state to an unfolded state, the first and second housings can be easily unfolded without damaging the rotating mechanism between them or the display screen.

[0006] This application provides a foldable electronic device, including: a first housing, a second housing, a third housing, a first magnetic element, and a second magnetic element.

[0007] Along a first direction, a first housing, a second housing, and a third housing are arranged sequentially. The first and second housings are rotatably connected, and the second and third housings are rotatably connected. A first magnetic component is disposed on the first housing, and a second magnetic component is disposed on the second housing. Specifically, the foldable electronic device also includes a first display screen and two rotating mechanisms, namely a first rotating mechanism and a second rotating mechanism. The first and second housings are rotatably connected via the first rotating mechanism, and the second and third housings are rotatably connected via a second rotating mechanism. The first display screen can be a flexible display screen, which is stacked on top of the first housing, the first rotating mechanism, the second housing, the second rotating mechanism, and the third housing. When the first and second housings rotate relative to each other, and / or when the second and third housings rotate relative to each other, the display screen will bend or flatten.

[0008] When the foldable electronic device is in the unfolded state, the first housing, the second housing, and the third housing are arranged sequentially along a first direction. That is, the first housing and the second housing are unfolded relative to each other, and the second housing and the third housing are unfolded relative to each other. When the foldable electronic device is in the folded state, the third housing, the first housing, and the second housing are stacked sequentially, that is, the first housing and the second housing are folded relative to each other, and the second housing and the third housing are folded relative to each other.

[0009] In this application, the first and second housings are folded relative to each other. When the second and third housings switch from being relatively unfolded to being relatively folded, the first and second magnetic components are at least partially stacked along the second direction, which is perpendicular to the first direction. An attractive force exists between the first and second magnetic components, keeping the first and second housings folded relative to each other. That is, when the foldable electronic device switches from an unfolded state to a folded state, the first and second housings are prevented from being in an open state. Relative folding refers to an angle of approximately 0 degrees between the first and second housings, while an open state refers to an angle of approximately 5 degrees between the first and second housings. Therefore, when the foldable electronic device switches from an unfolded state to a folded state, the convenience of closing the third housing is increased, and the third housing will not contact the first housing, thus avoiding damage to the display screen from the third housing.

[0010] As the second and third housings unfold relative to each other, the attraction between the first and second magnetic components changes. This change refers to a decrease or disappearance of the attraction between the first and second magnetic components, causing the first and third housings to open. This allows the first and second housings to switch from a folded state to an unfolded state. In other words, during the transition from a folded to an unfolded state in the foldable electronic device, when the second and third housings unfold relative to each other, the attraction between the first and second magnetic components is less than the tension of the display screen, keeping the first and second housings open. This facilitates user operation of the first housing, allowing it to unfold relative to each other. This also prevents damage to the second rotating mechanism and the display screen during the unfolding of the first and second housings.

[0011] Optionally, the foldable electronic device also includes a driving device for changing the position of the second magnetic element, so that the first and second magnetic elements are offset along a second direction, thereby changing the adsorption force between the first and second magnetic elements. By changing the position of the second magnetic element, the magnitude of the adsorption force between the first and second magnetic elements can be changed, resulting in a simple structure that is easy to implement.

[0012] Optionally, the foldable electronic device further includes a rotating mechanism, through which the second housing and the third housing are rotatably connected. Specifically, the second housing and the third housing are rotatably connected via a second rotating mechanism. A second magnetic element is disposed on a driving device. The driving device is disposed on the second housing and is connected to the rotating mechanism.

[0013] When the second and third housings switch from being relatively unfolded to being relatively folded, the rotating mechanism drives the drive device to operate, causing the drive device to move the second magnetic component away from the first magnetic component along a third direction, thus causing the first and second magnetic components to be offset along the second direction. The third direction is perpendicular to the first direction, and the third direction is perpendicular to the second direction.

[0014] When the second and third shells switch from relative folding to relative unfolding, the rotating mechanism drives the driving device, which in turn moves the second magnetic component along a third direction toward the first magnetic component. The attraction force between the first and second magnetic components is less than the force required to keep the first and second shells in a relative folded state, thus allowing the first and second shells to switch from relative folding to relative unfolding.

[0015] Using a second rotating mechanism to drive the drive unit eliminates the need for additional components, saving on parts and facilitating the thinner and lighter design of foldable electronic devices.

[0016] Optionally, the driving device includes a mounting member, a sliding member, and an elastic member. The second magnetic member is disposed on the mounting member, which has a driving hole. The sliding member has a driving rod. Both the mounting member and the sliding member are slidably connected to the rotating mechanism, and the two ends of the elastic member abut against the mounting member and the rotating mechanism, respectively. The driving rod extends into the driving hole. The sidewall of the driving hole includes a first sidewall, which is inclined relative to a third direction. When the second and third housings switch from relative unfolding to relative folding, the rotating mechanism drives the sliding member to slide away from the mounting member along the first direction. The driving rod slides along the first sidewall, causing the mounting member to slide along a third direction, and the mounting member drives the second magnetic member to move away from the first magnetic member along the third direction. The elastic member is compressed. When the second and third housings switch from relative folding to relative unfolding, the rotating mechanism drives the sliding member to slide closer to the mounting member along the first direction. The elastic member extends, and the mounting member drives the second magnetic member to move closer to the first magnetic member along multiple third directions. Thus, when the driving device is installed on the second housing and the second rotating mechanism, the structure is relatively compact and can meet the position change requirements of the second magnetic member.

[0017] Optionally, the driving device further includes a first connecting shaft and a damping element. The first connecting shaft is disposed on the rotating mechanism, and the mounting element and the elastic element are both sleeved on the first connecting shaft. The axial direction of the first connecting shaft is parallel to a third direction, and the mounting element can slide along the first connecting shaft. The damping element is disposed on the mounting element and sleeved on the first connecting shaft. The damping element is used to reduce the sliding speed of the mounting element along the first connecting shaft, so that the adsorption force between the first magnetic element and the second magnetic element is less than the force required for the first housing and the second housing to maintain relative folding. Under the action of the damping element, the second magnetic element and the mounting element move synchronously and slowly. During the slow movement of the second magnetic element, the first magnetic element and the second magnetic element change from being completely offset to partially overlapping. The adsorption force between the first magnetic element and the second magnetic element gradually increases. However, because the overlapping part of the first magnetic element and the second magnetic element is small, compared with when the first magnetic element and the second magnetic element are completely overlapping or have a large overlap, the adsorption force decreases or disappears. Therefore, the adsorption force is insufficient to overcome the tension of the display screen. Therefore, before sufficient adsorption force is generated between the second magnetic component and the first magnetic component, the first and second housings can be in an open state. At this time, the user can easily unfold the first and second housings relative to each other without damaging the second rotating mechanism and the display screen.

[0018] Optionally, the sidewall of the drive hole further includes a second sidewall, which is connected to the first sidewall along the first direction and is parallel to the first direction. When the second and third housings switch from being relatively unfolded to being relatively folded, the angle between the second and third housings decreases from a second angle to a first angle. When the second and third housings are at the second angle, the drive rod slides along the second sidewall, the displacement of the mounting member along the third direction is zero, and the first and second magnetic elements are at least partially stacked. There is an attractive force between the first and second magnetic elements, which keeps the first and second housings relatively folded. When the second and third housings are at the first angle, the drive rod slides along the first sidewall.

[0019] During the transition from an intermediate state to a folded state in a foldable electronic device, if the first and second housings are in an open state when the angle between the second and third housings is a second angle, the third housing may collide with the first housing, potentially damaging the display screen. In this application, when the angle between the second and third housings is a second angle, the mounting component does not move along a third direction, keeping the first and second housings closed and preventing a collision between the third and first housings. When the angle between the second and third housings is a first angle, the third housing is already close to being pre-closed, eliminating the risk of collision with the first housing. At this point, the mounting component can then begin moving along a third direction, reducing or eliminating the attraction between the first and second magnetic components, without affecting the rotation of the third housing.

[0020] When the foldable electronic device is in a folded state, the attractive force between the first and second magnetic components decreases or disappears. When the foldable electronic device switches from a folded state to an unfolded state, it takes a certain amount of time for the first and second magnetic components to return to their overlapping state and generate sufficient attractive force. During this time, there is still no attractive force between the first and second magnetic components, or there is an attractive force, but it is less than the tension of the display screen. The tension of the display screen keeps the first and second housings in an open state, so that the first and second housings can switch to a relatively unfolded state.

[0021] Optionally, the rotating mechanism includes a first swing arm and a support base, with the support base disposed between the second and third housings. One side of the first swing arm is rotatably and slidably connected to the support base, while the other side of the first swing arm is fixedly connected to the second housing. One side of the sliding member and the mounting member are slidably connected to the first swing arm, while the other side of the sliding member is rotatably and slidably connected to the support base. When the second and third housings switch from relative unfolding to relative folding, or when the second and third housings switch from relative folding to relative unfolding, the first swing arm rotates and slides relative to the support base, thereby driving the sliding member to slide relative to the first swing arm along a first direction. The first swing arm can both realize the relative rotation of the second and third housings and drive the mounting member to move along a third direction, thereby causing the second magnetic member to move along a third direction, eliminating the need for additional devices to drive the mounting member to move, thus saving on the number of parts.

[0022] Optionally, the drive device further includes a connecting swing arm. One side of the connecting swing arm is rotatably connected to the slider, and the other side of the connecting swing arm is rotatably and slidably connected to the support base. When the first swing arm rotates and slides relative to the support base, the connecting swing arm rotates and slides relative to the support base, and the connecting swing arm rotates relative to the slider, so that the slider slides relative to the first swing arm in a first direction.

[0023] Optionally, the first swing arm includes a first surface, a first side surface, and a second side surface. Along a first direction, the first side surface and the second side surface are opposite to each other, and the first surface connects the first side surface and the second side surface. The first surface is recessed with a connecting sliding groove that passes through the first side surface and the second side surface.

[0024] Both the mounting component and the sliding component are slidably connected to the connecting sliding groove. Along the second direction, the portion of the mounting component with the drive hole and the portion of the sliding component with the drive rod are stacked, allowing the drive rod to extend into the drive hole. The mounting component extends out of the connecting sliding groove from a first side, and the sliding component extends out of the connecting sliding groove from a second side. The connection of both the mounting component and the sliding component to the connecting sliding groove improves the structural compactness.

[0025] Optionally, a first slide rail is provided within the connecting sliding groove, and the first slide rail has a first guide groove extending in a third direction. The mounting component has a first slider that extends into the first guide groove and can slide within the first guide groove in a third direction. The first slider and the first slide rail cooperate to guide the movement of the mounting component in the third direction, preventing the mounting component from rotating axially around the first connecting shaft, thus making the movement of the mounting component more stable.

[0026] Optionally, a second slide rail is provided within the connecting sliding groove, and the second slide rail has a second guide groove extending along the first direction. The sliding member has a second slider that extends into the second guide groove and can slide within the second guide groove along the first direction. The second slider cooperates with the second guide rail to guide the sliding of the sliding member along the first direction, making the movement of the sliding member more stable.

[0027] Optionally, the first magnetic component is a permanent magnet, and the second magnetic component is an electromagnet. When the first and second shells are folded relative to each other, and the second and third shells switch from being relatively unfolded to being relatively folded, the second magnetic component is de-energized, and there is an attractive force between the first and second magnetic components to keep them folded relative to each other. When the second and third shells are unfolded relative to each other, the second magnetic component is energized, the attractive force between the first and second magnetic components disappears, and there is a repulsive force between them, causing the first and second shells to open. This allows the first and second shells to switch from being relatively folded to being relatively unfolded. By controlling the energization or de-energization of the electromagnet, the force between the first and second magnetic components is changed, thereby allowing the first and second shells to be in an open or relatively folded state, resulting in a relatively simple structure.

[0028] Optionally, when the second and third housings switch from being folded relative to each other to being unfolded relative to each other, the angle between the second and third housings increases from a first angle to a second angle. When the second and third housings are at the first angle, the second magnetic component is de-energized, and there is an attractive force between the first and second magnetic components to keep the first and second housings folded relative to each other. This prevents the first and second housings from opening up before the third housing has moved away from the first housing, avoids collisions between the third and first housings, and prevents damage to the display screen.

[0029] When the second and third housings form a second included angle, the second magnetic component is energized, and the first and second magnetic components repel each other. This repulsion causes the first and second housings to open, thus facilitating the switching of the first and second housings to relative unfolding.

[0030] Optionally, both the first and second magnetic components are electromagnets. When the first and second housings are folded relative to each other, and the second and third housings switch from relative folding to relative unfolding, at least one of the first and second magnetic components is energized, and there is an attractive force between them to keep the first and second housings folded relative to each other. When the second and third housings are unfolded relative to each other, both the first and second magnetic components are energized, with the current direction of the first magnetic component opposite to that of the second magnetic component. There is a repulsive force between the first and second magnetic components, which causes the first and second housings to open. This allows the first and second housings to switch from relative folding to relative unfolding.

[0031] Optionally, when the second and third housings switch from relative folding to relative unfolding, the angle between the second and third housings increases from a first angle to a second angle. When the second and third housings are at the first angle, at least one of the first and second magnetic components is energized, and there is an attractive force between the first and second magnetic components to keep the first and second housings folded relative to each other. When the second and third housings are at the second angle, both the first and second magnetic components are energized, with the current direction of the first magnetic component being opposite to that of the second magnetic component. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0033] Figure 1 This is a schematic diagram of the structure of the foldable electronic device provided in the embodiments of this application in the first state.

[0034] Figure 2 yes Figure 1 The diagram shows a split structure of the foldable electronic device.

[0035] Figure 3 This is a schematic diagram of the structure of the foldable electronic device provided in the embodiments of this application in the second state.

[0036] Figure 4 This is a schematic diagram of the structure of the foldable electronic device provided in the embodiment of this application in the third state.

[0037] Figure 5 This is a structural schematic diagram of the foldable electronic device provided in the embodiments of this application in a third state from another perspective.

[0038] Figure 6 This is a schematic diagram illustrating the state switching process of the foldable electronic device provided in the embodiments of this application.

[0039] Figure 7 This is a schematic diagram of the structure of a foldable electronic device in the related technology, where the first and second housings are in an open state.

[0040] Figure 8 yes Figure 7 The diagram shows a structural schematic of the foldable electronic device from another perspective.

[0041] Figure 9 This is a schematic diagram of the structure of the first and second housings of a foldable electronic device in related technologies, which are difficult to unfold.

[0042] Figure 10 This is a schematic diagram of the main body of the foldable electronic device provided in the embodiments of this application.

[0043] Figure 11 This is a schematic diagram of the split structure of the driving device and the second rotating mechanism of the foldable electronic device provided in the embodiments of this application.

[0044] Figure 12 This is a schematic diagram of the split structure of some components of the driving device of the foldable electronic device provided in the embodiments of this application.

[0045] Figure 13 yes Figure 10 A magnified structural diagram at point A.

[0046] Figure 14 This is a schematic diagram of the assembly structure of some components of the driving device of the foldable electronic device provided in the embodiments of this application.

[0047] Figure 15 This is a simplified schematic diagram of the installation of the driving device for the foldable electronic device provided in the embodiments of this application.

[0048] Figure 16 This is a schematic diagram showing the positions of the first and second magnetic components when the foldable electronic device provided in this application is in the first state.

[0049] Figure 17 This is a schematic diagram showing the positions of the first and second magnetic components when the foldable electronic device provided in this application is in the second state.

[0050] Figure 18 This is a schematic diagram of the structure of the foldable electronic device provided in this application, which moves the second magnetic component when the driving device switches from the second state to the third state.

[0051] Figure 19 This is another structural schematic diagram of the foldable electronic device provided in this application, which moves the second magnetic component when the driving device switches from the second state to the third state.

[0052] Figure 20 This is a schematic diagram showing the positions of the first and second magnetic components when the foldable electronic device provided in this application is in a third state.

[0053] Figure 21 This is a schematic diagram of the state structure of the driving device when the foldable electronic device provided in this application switches from the third state to the second state.

[0054] Figure 22 This is a partial structural schematic diagram of a foldable electronic device provided in another embodiment of this application.

[0055] Figure 23 This is a logic diagram showing the operation of the first and second magnetic components of the foldable electronic device provided in another embodiment of this application.

[0056] Figure 24 This is a partial structural schematic diagram of a foldable electronic device provided in another embodiment of this application.

[0057] Explanation of reference numerals: 1000 - Foldable electronic device; 2000 - Main body; 2100 - First housing; 2110 - First receiving slot; 2200 - Second housing; 2210 - Second receiving slot; 2300 - Third housing; 2400 - First rotating mechanism; 2500 - Second rotating mechanism; 400 - Support base; 410 - First connecting slot; 420 - Second connecting slot; 430 - Third connecting slot; 500 - First swing arm; 510 - First fixing part; 511 - First surface; 512 - First side; 513 - Second side; 520 - First swing arm. Part, 530-Connecting sliding groove, 540-First slide rail, 541-First guide slide groove, 550-Second slide rail, 551-Second guide slide groove, 560-First connecting ear, 561-First connecting hole, 600-Second swing arm, 610-Second fixing part, 620-Second swing part, 3000-First display screen, 3100-First display part, 3200-Second display part, 3300-Third display part, 3400-Fourth display part, 3500-Fifth display part, 100-Drive device, 10-Mounting component, 101-First mounting surface, 102-Second Mounting surface, 103-First mounting side, 104-Second mounting side, 105-First mounting end face, 106-Second mounting end face, 107-Mounting groove, 108-Damping groove, 109-Mounting hole, 110-Drive hole, 111-First side wall, 112-Second side wall, 113-Third side wall, 114-Fourth side wall, 115-First slider, 116-Limiting groove, 20-Sliding element, 201-First sliding surface, 202-Second sliding surface, 203-First sliding side, 204-Second sliding side, 205-Drive rod, 2 06-Second connecting ear, 207-Second connecting hole, 208-Matching guide groove, 209-Second slider, 30-Damping component, 301-First damping surface, 302-Second damping surface, 303-Damping side, 304-Through hole, 305-Limiting protrusion, 40-Elastic component, 50-First connecting shaft, 60-Second connecting shaft, 70-Connecting swing arm, 701-Rotating part, 702-Sliding part, 703-Rotating hole, 200-First magnetic component, 200a-Permanent magnet, 300-Second magnetic component, 200b, 300a, 300b-Electromagnet. Detailed Implementation

[0058] The embodiments of this application are described below with reference to the accompanying drawings.

[0059] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the foldable electronic device 1000 provided in the embodiments of this application in the first state. Figure 2 yes Figure 1The diagram shows the split structure of the foldable electronic device 1000.

[0060] Figure 1 The foldable electronic device 1000 shown is in its unfolded state. Figure 1 The unfolding angle of the foldable electronic device 1000 shown is 180 degrees. It should be noted that the angles illustrated in the embodiments of this application are allowed to have slight deviations. For example, Figure 1 The unfolding angle of the foldable electronic device 1000 shown is 180 degrees, with a deviation of ±4 degrees. The angles illustrated later can be understood in the same way.

[0061] For ease of description, the width direction of the foldable electronic device 1000 is defined as the X-axis direction, the length direction of the foldable electronic device 1000 is defined as the Y-axis direction, and the thickness direction of the foldable electronic device 1000 is defined as the Z-axis direction. The X-axis, Y-axis, and Z-axis directions are all perpendicular to each other.

[0062] The foldable electronic device 1000 includes, but is not limited to, cellphones, notebook computers, tablet personal computers, personal digital assistants, wearable devices, or mobile devices. In this embodiment, a cellphone is used as an example of the foldable electronic device 1000 for illustration.

[0063] The foldable electronic device 1000 includes a main body 2000, a first display screen 3000, and a second display screen (not shown). Both the first display screen 3000 and the second display screen are mounted on the main body 2000. The first display screen 3000 is a flexible display screen, and the second display screen is a rigid screen. Both the first display screen 3000 and the second display screen include a display surface and a mounting surface, which are arranged opposite to each other. The display surface is used to display text, images, videos, etc. The first display screen 3000 includes a first display unit 3100, a second display unit 3200, a third display unit 3300, a fourth display unit 3400, and a fifth display unit 3500 connected in sequence.

[0064] The main body 2000 includes a first housing 2100, a second housing 2200, a third housing 2300, and two rotating mechanisms, namely a first rotating mechanism 2400 and a second rotating mechanism 2500. The first housing 2100, second housing 2200, and third housing 2300 are arranged sequentially along the X-axis. The first housing 2100 has a first receiving groove facing the second housing 2200, and the second housing 2200 has a second receiving groove facing the first housing 2100. The first and second receiving grooves communicate to form a first receiving cavity. The first rotating mechanism 2400 is installed in the first receiving cavity to achieve a rotational connection between the first housing 2100 and the second housing 2200, allowing the first housing 2100 and the second housing 2200 to rotate relative to each other. The second housing 2200 has a third receiving groove facing the third housing 2300, and the third housing 2300 has a fourth receiving groove facing the second housing 2200. The third and fourth receiving grooves communicate to form a second receiving cavity. The first rotating mechanism 2400 can be a hinge, connecting the first housing 2100 and the second housing 2200. It functions as a rotating structure between the first housing 2100 and the second housing 2200, allowing for relative free rotation and relative folding of the two housings. Specifically, the first rotating mechanism 2400 includes two connected hinges arranged sequentially along the Y-axis, with one hinge connected to the first housing 2100 and the other connected to the second housing 2200. Alternatively, the first rotating mechanism 2400 may include a single hinge extending from one side of the electronic device to the other along the Y-axis. The first rotating mechanism 2400 can also be two connected and relatively rotatable shafts, with one shaft rotatably connected to the first housing 2100 and the other rotatably connected to the second housing 2200, enabling relative rotation of the first housing 2100 and the second housing 2200. The first rotating mechanism 2400 can also be a rotating structure of other types, as long as it can enable the first housing 2100 and the second housing 2200 to rotate freely relative to each other and fold relative to each other without damaging the first display screen 3000.

[0065] The second rotating mechanism 2500 is installed in the second receiving cavity to realize the rotational connection between the second housing 2200 and the third housing 2300. This allows the second housing 2200 and the third housing 2300 to rotate relative to each other via the second rotating mechanism 2500, thereby enabling the main body 2000 to switch between a folded state and an unfolded state. The structure of the second rotating mechanism 2500 can be the same as that of the first rotating mechanism 2400. In other embodiments, the structure of the second rotating mechanism 2500 can also be different from that of the first rotating mechanism 2400, as long as it enables the second housing 2200 and the third housing 2300 to rotate freely relative to each other and fold relative to each other without damaging the first display screen 3000.

[0066] The first display screen 3000 is mounted on the main body 2000, and the mounting surface of the first display screen 3000 is fixedly connected to the main body 2000. Specifically, the first display unit 3100 is mounted on the first housing 2100, the third display unit 3300 is mounted on the second housing 2200, and the fifth display unit 3500 is mounted on the third housing 2300. The second display unit 3200 is disposed opposite to the first rotating mechanism 2400, and the fourth display unit 3400 is disposed opposite to the second rotating mechanism 2500, so as to realize the bending of the first display screen 3000. The second display screen is disposed on the side of the second housing 2200 opposite to the first display unit 3100. In other embodiments, the second display screen is disposed on the side of the first housing 2100 opposite to the first display unit 3100.

[0067] When the foldable electronic device 1000 is in its unfolded state, the first housing 2100 and the second housing 2200 unfold relative to each other, with an angle of approximately 180 degrees between them. The second housing 2200 and the third housing 2300 unfold relative to each other, with an angle of approximately 180 degrees between them. The first display screen 3000 has a large display area, and both the first display screen 3000 and the second display screen can display information.

[0068] refer to Figure 3 , Figure 3 This is a schematic diagram of the structure of the foldable electronic device 1000 provided in the embodiments of this application in the second state. Figure 3The foldable electronic device 1000 shown is in an intermediate state. In this intermediate state, the first housing 2100 and the second housing 2200 are stacked along the Z-axis, and the third housing 2300 and the second housing 2200 are arranged along the X-axis. That is, the first housing 2100 and the second housing 2200 are folded relative to each other, with an angle of approximately 0 degrees between them. The second housing 2200 and the third housing 2300 are unfolded relative to each other, with an angle of approximately 180 degrees between them. At this time, the first display unit 3100 and the third display unit 3300 are stacked between the first housing 2100 and the second housing 2200, with the display surfaces of the first display unit 3100 and the third display unit 3300 facing each other. The second display unit 3200 is in a bent state. The fourth display unit 3400 is not bent, the third display unit 3300 and the fifth display unit 3500 are arranged along the X-axis direction, and the fifth display unit 3500 is in a visible state.

[0069] refer to Figure 4 and Figure 5 , Figure 4 This is a structural schematic diagram of the foldable electronic device 1000 provided in this application embodiment in the third state. Figure 5 This is a structural schematic diagram of the foldable electronic device 1000 provided in the embodiments of this application in a third state, from another perspective. Figure 4 and Figure 5 The foldable electronic device 1000 shown is in a folded state. When folded, the foldable electronic device 1000 is roughly "G" shaped, hence it is also called a G-type foldable phone. The third housing 2300, the first housing 2100, and the second housing 2200 are stacked sequentially along the Z-axis. The first housing 2100 and the second housing 2200 are folded relative to each other, with an angle of approximately 0 degrees between them. The second housing 2200 and the third housing 2300 are also folded relative to each other, with an angle of approximately 0 degrees between them.

[0070] The first display screen 3000 is the inner screen of the foldable electronic device 1000, and the second display screen is the outer screen of the foldable electronic device 1000. In other words, when the foldable electronic device 1000 is in a folded state, the first display screen 3000 is located inside the foldable electronic device 1000. Specifically, the fifth display unit 3500 is stacked between the first housing 2100 and the third housing 2300, and the first display unit 3100 and the third display unit 3300 are stacked between the first housing 2100 and the second housing 2200, with the display surfaces of the first display unit 3100 and the third display unit 3300 facing each other. The second display unit 3200 and the fourth display unit 3400 are in a bent state. The second display screen is located outside the foldable electronic device 1000. Specifically, the second display screen is located on the side of the first housing 2100 away from the first display unit 3100. At this time, the first display screen 3000 is blocked, and the second display screen can display.

[0071] Please refer to Figure 6 , Figure 6 This is a schematic diagram of the state switching process of the foldable electronic device 1000 provided in the embodiments of this application. Figure 6 The diagram illustrates the process of a foldable electronic device 1000 switching from an unfolded state to an intermediate state, and then from the intermediate state to a folded state. When switching from the unfolded state to the intermediate state, the first housing 2100 is first rotated clockwise, causing it to stack on top of the second housing 2200, meaning the first and second housings are folded relative to each other, while the second and third housings 2200 are unfolded relative to each other. When switching from the intermediate state to the folded state, the third housing 2300 is rotated counterclockwise, causing it to stack on top of the first housing 2100, at which point the foldable electronic device 1000 is in the folded state. At this point, the third housing 2300, the second housing 2200, and the first housing 2100 are stacked sequentially along the Z-axis. Furthermore, the angle between the first and second housings 2100 is approximately 0 degrees.

[0072] When the foldable electronic device 1000 switches from a folded state to an intermediate state, the third housing 2300 is rotated clockwise, causing the third housing 2300 to unfold relative to the second housing 2200. When the foldable electronic device 1000 switches from an intermediate state to an unfolded state, the first housing 2100 is rotated counterclockwise, causing the first housing 2100 to unfold relative to the second housing 2200. Therefore, whether switching from an unfolded state to a folded state or vice versa, only one housing is flipped each time, making the unfolding and folding process relatively smooth.

[0073] However, in related technologies, reference Figure 7 and Figure 8 , Figure 7 This is a schematic diagram of the structure of a foldable electronic device 1000 in which the first housing 2100 and the second housing 2200 are in an open state. Figure 8 yes Figure 7 The diagram shows a structural schematic of the foldable electronic device 1000 from another perspective. When the foldable electronic device 1000 is in its intermediate state, the tension of the display screen causes the first housing 2100 and the second housing 2200 to be pushed apart into an open state, meaning there is a small angle α between the first housing 2100 and the second housing 2200, for example, approximately 5 degrees. If the foldable electronic device 1000 is then switched from the intermediate state to the folded state, i.e., the third housing 2300 is operated to stack on top of the first housing 2100, the third housing 2300 will be difficult to close, and it may come into contact with the first housing 2100, thereby damaging the display screen.

[0074] refer to Figure 9 , Figure 9 This is a schematic diagram of the structure of a foldable electronic device 1000 in the related art, showing that the first housing 2100 and the second housing 2200 are difficult to unfold. Related art includes adding components to keep the first housing 2100 and the second housing 2200 folded relative to each other; however, the current design makes it difficult to unfold the first housing 2100 and the second housing 2200 when switching the foldable electronic device 1000 from a folded state to an unfolded state. If the first housing 2100 and the second housing 2200 are forcibly pried open, the user needs to use their fingers to pry open the side of the first housing 2100 facing the second housing 2200, and the fingers may come into contact with and damage the fourth display section 3400 of the display screen. When the user applies upward force to unfold the first housing 2100 and the second housing 2200, the second rotating mechanism 2500 is subjected to an upward bending force F, which can easily damage the second rotating mechanism 2500.

[0075] To address the aforementioned issues, this embodiment refers to... Figure 10 , Figure 10 This is a schematic diagram of the structure of the main body 2000 of the foldable electronic device 1000 provided in the embodiments of this application. The first housing 2100 is provided with a first receiving groove 2110, and the second housing 2200 is provided with a second receiving groove 2210. The second receiving groove 2210 and the third storage groove are connected.

[0076] The main body 2000 also includes a driving device 100, a first magnetic element 200, and a second magnetic element 300. The first magnetic element 200 is disposed within a first receiving groove 2110 of the first housing 2100, and can be specifically adhered to the first receiving groove 2110 to prevent it from falling off. The second magnetic element 300 is disposed within the driving device 100, which is located within a second receiving groove 2210 of the second housing 2200, and is connected to the second rotating mechanism 2500. The number of first magnetic elements 200 and second magnetic elements 300 is the same; for example, there are two of each type, with each of the two first magnetic elements 200 cooperating with one of the two second magnetic elements 300. Each second magnetic element 300 is matched with one driving device 100.

[0077] When the second rotating mechanism 2500 operates, it drives the driving device 100, which in turn moves the second magnetic component 300. This changes the position between the first magnetic component 200 and the second magnetic component 300, thereby altering the attraction force between the first housing 2100 and the second housing 2200. When the attraction force is strong, the first housing 2100 and the second housing 2200 remain in a relatively folded state, preventing collisions between the third housing 2300 and the first housing 2100 during the transition to a relatively folded state. When the attraction force is weak or disappears, the first housing 2100 and the second housing 2200 are in an open state, facilitating the transition to a relatively unfolded state. This will be described in detail below.

[0078] The second rotating mechanism 2500 includes a support base 400 and a swing arm assembly, which includes a first swing arm 500 and a second swing arm 600. The structures of the first swing arm 500 and the second swing arm 600 may be the same or different. The support base 400 is disposed between the second housing 2200 and the third housing 2300. One side of the first swing arm 500 is slidably connected to the support base 400, and the other side of the first swing arm 500 is fixedly connected to the second housing 2200. One side of the second swing arm 600 is slidably connected to the support base 400, and the other side of the second swing arm 600 is fixedly connected to the third housing 2300.

[0079] There can be three swing arm assemblies, arranged sequentially along the Y-axis. The structures of the three swing arm assemblies can be the same or different. In this embodiment, the swing arm assemblies at both ends have the same structure, and the first swing arm 500 of the two swing arm assemblies at both ends is connected to a drive device 100. In other embodiments, there can be one, two, or four swing arm assemblies, etc.

[0080] It is understood that the second rotating mechanism 2500 may further include a secondary swing arm assembly (not shown), which includes a first secondary swing arm and a second secondary swing arm. One side of the first secondary swing arm is rotatably connected to the support base 400, and the other side of the first secondary swing arm is slidably connected to the portion of the first swing arm 500 connected to the second housing 2200. Alternatively, the other side of the first secondary swing arm is slidably connected to the second housing 2200. One side of the second secondary swing arm is rotatably connected to the support base 400, and the other side of the second secondary swing arm is slidably connected to the portion of the second swing arm 600 connected to the third housing 2300. Alternatively, the other side of the second secondary swing arm is slidably connected to the third housing 2300.

[0081] refer to Figure 11 , Figure 11 This is a schematic diagram of the split structure of the driving device 100 and the second rotating mechanism 2500 of the foldable electronic device 1000 provided in this application embodiment. The support base 400 is elongated, and its upper surface is provided with a first connecting groove 410, a second connecting groove 420, and a third connecting groove 430. The first connecting groove 410 and the second connecting groove 420 are symmetrical along the center line of the Y-axis direction of the support base 400, and the third connecting groove 430 and the first connecting groove 410 are arranged at intervals along the Y-axis direction. The first connecting groove 410 is used to connect with the first swing arm 500, the second connecting groove 420 is used to connect with the second swing arm 600, and the third connecting groove 430 is used to connect with the driving device 100.

[0082] The first swing arm 500 includes a first fixed part 510 and a first swing part 520. The first fixed part 510 includes a first surface 511, a first side surface 512 and a second side surface 513. The first side surface 512 and the second side surface 513 are opposite to each other along the X-axis direction. The first surface 511 is the upper surface of the first fixed part 510 and is connected between the first side surface 512 and the second side surface 513.

[0083] The first swinging part 520 is fixed to the first side surface 512 of the first fixed part 510. The first surface 511 of the first fixed part 510 is recessed with a connecting sliding groove 530, which passes through the first side surface 512 and the second side surface 513. The connecting sliding groove 530 is provided with a first slide rail 540 and a second slide rail 550, which are arranged at intervals along the Y-axis. The first slide rail 540 extends along the Y-axis and is provided with a first guide groove 541, which also extends along the Y-axis. The opening of the first guide groove 541 faces the second side surface 513, and the side of the first slide rail 540 facing away from the opening of the first guide groove 541 is flush with the first side surface 512. The second slide rail 550 extends along the X-axis direction and is provided with two second guide grooves 551. Both second guide grooves 551 extend along the X-axis direction and are located on opposite sides of the second slide rail 550 along the Y-axis direction.

[0084] Two first connecting ears 560 are protruding from the second side 513 of the first fixing part 510. The two first connecting ears 560 are respectively located on both sides of the sliding groove along the Y-axis direction, and each of the two first connecting ears 560 is provided with a first connecting hole 561. Along the Y-axis direction, the first connecting hole 561 passes through the first connecting ear 560. The axial direction of the first connecting hole 561 is parallel to the Y-axis direction.

[0085] The second swing arm 600 includes a second fixed part 610 and a second swing part 620, which are fixedly connected along the X-axis. The second fixed part 610 is used to be fixedly connected to the third housing 2300, and the second swing part 620 is used to be slidably connected to the second connecting groove 420 of the bearing base 400.

[0086] refer to Figure 11 and Figure 12 , Figure 12 This is a schematic diagram showing the split structure of some components of the driving device 100 of the foldable electronic device 1000 provided in this application embodiment. The driving device 100 includes a mounting member 10, a sliding member 20, a damping member 30, an elastic member 40, a first connecting shaft 50, a second connecting shaft 60, and a connecting swing arm 70. The elastic member 40 can be a spring or a rubber component.

[0087] Mounting member 10 is rectangular in shape; in other embodiments, it may also be triangular, circular, or other shapes. Mounting member 10 includes a first mounting surface 101, a second mounting surface 102, a first mounting side surface 103, a second mounting side surface 104, a first mounting end surface 105, and a second mounting end surface 106. Along the Z-axis, the first mounting surface 101 and the second mounting surface 102 are opposite to each other. Along the Y-axis, the first mounting side surface 103 and the second mounting side surface 104 are opposite to each other, and along the X-axis, the first mounting end surface 105 and the second mounting end surface 106 are opposite to each other.

[0088] refer to Figure 12 The mounting component 10 is provided with a mounting groove 107, a damping groove 108, a mounting hole 109, a drive hole 110, and a first slider 115. Along the X-axis, the mounting groove 107, mounting hole 109, and drive hole 110 are arranged at intervals. The mounting groove 107 is recessed in the first mounting surface 101, or it penetrates through the first mounting surface 101 and the second mounting surface 102. The damping groove 108 is recessed in the first mounting side surface 103. The mounting hole 109 penetrates the bottom surface of the damping groove 108 and the second mounting side surface 104, and the axial direction of the mounting hole 109 is parallel to the Y-axis. The first mounting side surface 103 has two limiting grooves 116, both of which communicate with the damping groove 108. The drive hole 110 penetrates through the first mounting surface 101 and the second mounting surface 102. The driving hole 110 is in the shape of a right trapezoid. The sidewalls of the driving hole 110 include a second sidewall 112, a first sidewall 111, a third sidewall 113, and a fourth sidewall 114 connected sequentially. The second sidewall 112 and the third sidewall 113 are the upper and lower bases of the right trapezoid, respectively. The first sidewall 111 and the fourth sidewall 114 are the two legs of the right trapezoid. The second sidewall 112 and the third sidewall 113 are parallel to the X-axis, and the fourth sidewall 114 is parallel to the Y-axis. The first sidewall 111 is inclined relative to the Y-axis. The angle between the first sidewall 111 and the second sidewall 112 is obtuse, and the angle between the first sidewall 111 and the third sidewall 113 is acute. A first slider 115 protrudes from the first end face and is used to connect with the first guide groove 541.

[0089] refer to Figure 12The slider 20 is rectangular in shape; in other embodiments, it can also be triangular, circular, or other shapes. The slider 20 includes a first sliding surface 201, a second sliding surface 202, a first sliding side surface 203, and a second sliding side surface 204. Along the Z-axis, the first sliding surface 201 and the second sliding surface 202 are opposite to each other. Along the X-axis, the first sliding side surface 203 and the second sliding side surface 204 are opposite to each other. The slider 20 is provided with a drive rod 205, two second connecting ears 206, and two second sliders 209. The drive rod 205 is round and protrudes from the first sliding surface 201. The two second connecting ears 206 protrude from the first sliding surface 201 and are spaced apart along the Y-axis. Each second connecting ear 206 has a second connecting hole 207, which penetrates the second connecting ear 206 along the Y-axis. The axial direction of the second connecting hole 207 is parallel to the Y-axis. The second sliding surface 202 of the slider 20 is recessed with a matching guide groove 208. The two opposite sides of the matching guide groove 208 along the Y-axis are provided with second sliders 209. There is a gap between the second sliders 209 and the bottom surface of the matching guide groove 208.

[0090] The damping element 30 is cylindrical and can be a rubber ring. The damping element 30 includes a first damping surface 301, a second damping surface 302, and a damping side surface 303. Along the Y-axis, the first damping surface 301 and the second damping surface 302 are opposite to each other, and the damping side surface 303 connects between the first damping surface 301 and the second damping surface 302. The damping element 30 has a through hole 304 and a limiting protrusion 305. The through hole 304 penetrates both the first damping surface 301 and the second damping surface 302. There are two limiting protrusions 305, both of which protrude from the damping side surface 303.

[0091] The connecting swing arm 70 includes a rotating part 701 and a sliding part 702 fixedly connected along the X-axis. The rotating part 701 is provided with a rotating hole 703, which passes through the rotating part 701 along the Y-axis and is used for connecting to a second rotating shaft.

[0092] refer to Figure 13 and Figure 14 , Figure 13 yes Figure 10 Enlarged structural diagram at point A. Figure 14This is a schematic diagram of the assembly structure of some components of the drive device 100 of the foldable electronic device 1000 provided in this application embodiment. The assembly relationship of the second housing 2200, the third housing 2300, the second rotating mechanism 2500, the second magnetic component 300 and the drive device 100 is as follows: The first fixing part 510 of the first swing arm 500 is fixed in the third storage groove of the second housing 2200, and the first swinging part 520 of the first swing arm 500 is slidably connected to the first connecting groove 410 of the support base 400. The second fixing part 610 of the second swing arm 600 is fixed in the fourth storage groove of the third housing 2300, and the second swinging part 620 of the second swing arm 600 is slidably connected to the second connecting groove 420 of the support base 400.

[0093] Please refer to the above. Figure 15 , Figure 15 This is a simplified schematic diagram of the installation of the driving device for the foldable electronic device provided in this application embodiment. Both the slider 20 and the mounting member 10 of the driving device 100 are slidably connected to the second rotating mechanism 2500. Specifically, the slider 20 of the driving device 100 is installed in the connecting sliding groove 530 of the first fixing part 510. The connection between the slider 20 and the connecting sliding groove 530 improves the structural compactness. Furthermore, the second slider 209 of the slider 20 is slidably connected to the second guide groove 551 of the second slide rail 550. The second slider 209 can slide along the X-axis direction within the second guide groove 551, allowing the slider 20 to move along the X-axis direction. The slider 20 can extend out of the connecting sliding groove 530 from the second side 513. The second slider 209 cooperates with the second guide rail to guide the sliding of the slider 20 along the first direction, making the movement of the slider 20 more stable. The second magnetic component 300 is disposed in the mounting groove 107 of the mounting component 10. The second magnetic component 300 can be adhered to the mounting groove 107 to prevent the second magnetic component 300 from falling off.

[0094] The portion of the mounting member 10 with the drive hole 110 is located within the connecting sliding groove 530. The mounting member 10 and the connecting sliding groove 530 are connected, improving the structural compactness. The first slider 115 of the mounting member 10 extends into the first guide groove 541 of the first swing arm 500, and the first slider 115 can slide along the Y-axis direction within the first guide groove. The first slider 115 cooperates with the first slide rail 540 to guide the movement of the mounting member 10 along the third direction, preventing the mounting member 10 from rotating axially around the first connecting shaft 50, making the movement of the mounting member 10 more stable. Along the Z-axis direction, the portion of the mounting member 10 with the drive hole 110 and the portion of the sliding member 20 with the drive rod 205 are stacked. The drive rod 205 of the sliding member 20 extends into the drive hole 110, and the drive rod 205 of the sliding member 20 abuts against the side wall of the drive hole 110. The portion of the mounting member 10 with the mounting groove 107 extends from the first side 512 into the connecting sliding groove 530, and the portion of the mounting member 10 with the mounting groove 107 is disposed within the second receiving groove 2210. The portion of the mounting member 10 with the mounting hole 109 is located between the two first connecting ears 560, and the mounting hole 109 of the mounting member 10, the through hole 304 of the damping member 30, and the first connecting holes 561 of the two first connecting ears 560 are coaxial.

[0095] The first connecting shaft 50 passes through the first connecting hole 561, mounting hole 109, and through hole 304 of the two first connecting ears 560. The first connecting shaft 50 and the damping member 30 are interference-fitted, and there is friction between the first connecting shaft 50 and the damping member 30. The friction can slow down the speed of the mounting member 10 moving axially along the first connecting shaft 50. The elastic member 40 is sleeved on the first connecting shaft 50, and the two ends of the elastic member 40 abut against the second mounting side 104 of the mounting member 10 and one of the first connecting ears 560, respectively. The elastic member 40 is in a pre-compressed state so that the first mounting side 103 of the mounting member 10 abuts against the other first connecting ear 560.

[0096] The rotating part 701 of the connecting swing arm 70 is disposed between the two second connecting ears 206. The rotating hole 703 of the rotating part 701 and the second connecting holes 207 of the two second connecting ears 206 are coaxial. The second connecting shaft 60 passes through the rotating hole 703 of the rotating part 701 and the second connecting holes 207 of the two second connecting ears 206. The sliding part 702 of the connecting swing arm 70 is slidably connected to the third connecting groove 430 of the bearing base 400.

[0097] The damping element 30 is disposed within the damping groove 108 of the mounting member 10. Two limiting protrusions 305 of the damping element 30 are respectively disposed within two limiting grooves 116 of the mounting member 10, and the limiting protrusions 305 and the groove sides of the limiting grooves 116 are interference-fitted to prevent the damping element 30 from rotating axially around the mounting hole 109. The through hole 304 of the damping element 30 is coaxial with the mounting hole 109 of the mounting member 10.

[0098] When the foldable electronic device 1000 switches between an intermediate state, a folded state, and an unfolded state, the first swing portion 520 of the first swing arm 500 rotates and slides relative to the support base 400, the first fixed portion 510 and the second housing 2200 of the first swing arm 500 rotate clockwise or counterclockwise, the second swing portion 620 of the second swing arm 600 rotates and slides relative to the support base 400, and the second fixed portion 610 and the third housing 2300 of the second swing arm 600 rotate counterclockwise or counterclockwise. The swing portion of the connecting swing arm 70 rotates and slides relative to the support base 400, the rotating portion 701 of the connecting swing arm 70 rotates around the second connecting shaft 60, and the connecting swing arm 70 drives the slider 20 to slide along the X-axis direction, with the slider 20 sliding away from or towards the mounting member 10.

[0099] The slider 20 slides away from or towards the mounting member 10, causing the drive rod 205 to move along the second sidewall 112 or the first sidewall 111 of the drive hole. This drives the mounting member 10 to move along the Y-axis, causing the mounting member 10 to drive the second magnetic member 300 to slide along the Y-axis. This changes the relative position between the second magnetic member 300 and the first magnetic member 200, thereby changing the attraction force between the first magnetic member 200 and the second magnetic member 300.

[0100] refer to Figure 16 , Figure 16 This is a schematic diagram showing the positions of the first magnetic element 200 and the second magnetic element 300 when the foldable electronic device 1000 provided in this application is in a first state. When the foldable electronic device 1000 is in the unfolded state, along the X-axis direction, the first magnetic element 200 and the second magnetic element 300 are at least partially opposite each other, and the drive rod 205 of the slider 20 abuts against the end of the second side wall 112 of the drive hole 110 away from the first side wall 111.

[0101] refer to Figure 17 , Figure 17This is a schematic diagram showing the positions of the first magnetic component 200 and the second magnetic component 300 when the foldable electronic device 1000 provided in this application is in its second state. When the foldable electronic device 1000 switches from the unfolded state to the intermediate state, the first housing 2100 and the second housing 2200 switch from being relatively unfolded to being relatively folded, while the second housing 2200 and the third housing 2300 remain relatively unfolded. At this time, the first magnetic component 200 and the second magnetic component 300 are at least partially stacked along the Z-axis direction, and there is an adsorption force between the first magnetic component 200 and the second magnetic component 300. This adsorption force can prevent the first housing 2100 and the second housing 2200 from opening, so that the first housing 2100 and the second housing 2200 are stably closed. Here, "closed" refers to the relative folding of the first housing 2100 and the second housing 2200. It can be understood that the adsorption force between the first magnetic component 200 and the second magnetic component 300 is greater than the tension of the display screen.

[0102] refer to Figure 18 , Figure 18 This is a schematic diagram showing the structure of the foldable electronic device 100 provided in this application, where the driving device 100 moves the second magnetic component 300 when switching from a second state to a third state. For ease of viewing, Figure 18 The first housing 2100, second housing 2200, third housing 2300, and first magnetic component 200 are briefly illustrated using dashed lines. When the foldable electronic device 1000 switches from an intermediate state to a folded state, the first housing 2100 and the second housing 2200 remain folded relative to each other, while the second housing 2200 and the third housing 2300 switch from being relatively unfolded to being relatively folded. During this process, the first fixing part 510 of the first swing arm 500 rotates clockwise, and the connecting swing arm 70 drives the slider 20 to slide along the X-axis. The slider 20 slides away from the mounting part 10, and the drive rod 205 slides along the second side wall 112 of the drive hole 110 from one end away from the first side wall 111 to the end of the second side wall 112 close to the first side wall 111. Because the second sidewall 112 is parallel to the X-axis, the mounting component 10 does not move along the positive Y-axis. The first magnetic component 200 and the second magnetic component 300 remain stacked along the Z-axis, and there is a continuous adsorption force between them. This adsorption force keeps the first housing 2100 and the second housing 2200 in a closed state. At this time, the second housing 2200 and the third housing 2300 form a second angle. The range of the second angle is as follows: 60° ≤ second angle ≤ 180°.

[0103] refer to Figure 19 , Figure 19 This is another structural schematic diagram showing the movement of the second magnetic component 300 by the driving device 100 when the foldable electronic device 1000 provided in this application switches from the second state to the third state. For ease of viewing, Figure 18 The first housing 2100, the second housing 2200, the third housing 2300, and the first magnetic element 200 are briefly illustrated using dashed lines. As the slider 20 continues to slide away from the mounting member 10 along the X-axis, the drive rod 205 of the slider 20 switches to slide along the first side wall 111 of the drive hole 110. The drive rod 205 slides from the end of the first side wall 111 away from the third side wall 113 to the end of the first side wall 111 close to the third side wall 113. Because the first side wall 111 is an inclined surface, the drive rod 205 will generate a force in the positive Y-axis direction on the mounting member 10. This force causes the mounting member 10 to move in the positive Y-axis direction. During the movement of the mounting member 10, the elastic element 40 will be compressed. At this time, the second magnetic component 300 and the mounting component 10 move synchronously along the positive Y-axis. Along the Z-axis, the second magnetic component 300 and the first magnetic component 200 gradually shift apart, and the attraction force between the first magnetic component 200 and the second magnetic component 300 gradually decreases. When the first magnetic component 200 and the second magnetic component 300 are completely shifted apart, the attraction force between them disappears. At this time, the second housing 2200 and the third housing 2300 form a first angle, the range of which is: 0° ≤ first angle < 60°. The drive rod 205 of the sliding component 20 and the end of the first sidewall 111 of the drive hole 110 near the third sidewall 113 abut against each other to prevent the mounting component 10 from moving along the Y-axis. Although there is no attraction between the first magnetic component 200 and the second magnetic component 300, the second housing 2200 and the third housing 2300 have already completed the state switch. The first housing 2100 and the second housing 2200 do not need attraction to maintain a closed state, but can continue to maintain a stable closed state by utilizing the weight of the third housing 2300.

[0104] During the transition from an intermediate state to a folded state, if the first housing 2100 and the second housing 2200 are in an open state when the angle between them is a second angle, the third housing 2300 may collide with the first housing 2100, potentially damaging the display screen. In this embodiment, when the angle between the second housing 2200 and the third housing 2300 is a second angle, the mounting member 10 does not move along the Y-axis, keeping the first housing 2100 and the second housing 2200 closed and preventing a collision between the third housing 2300 and the first housing 2100. When the angle between the second housing 2200 and the third housing 2300 is a first angle, the third housing 2300 is already close to being pre-closed, and there is no risk of collision between it and the first housing 2100. At this point, the mounting component 10 begins to move along the Y-axis, causing the attraction force between the first magnetic component 200 and the second magnetic component 300 to change. This change refers to the reduction or disappearance of the attraction force, which will not affect the rotation of the third housing 2300 at all.

[0105] At this time, refer to Figure 20 , Figure 20 This is a schematic diagram showing the positions of the first magnetic element 200 and the second magnetic element 300 when the foldable electronic device 1000 provided in this application is in its third state. The first magnetic element 200 and the second magnetic element 300 are offset along the Z-axis, and there is no attraction between them. Once the foldable electronic device 1000 needs to switch from the folded state to the unfolded state, the second housing 2200 and the third housing 2300 can quickly switch to relative unfolding, and the constraint of the drive rod 205 on the mounting member 10 is lost. At this time, the mounting member 10 gradually moves towards the direction of stacking with the first magnetic element 200 under the action of the elastic member 40. However, due to the damping member 30, the mounting member 10 cannot drive the second magnetic element 300 to quickly stack with the first magnetic element 200. During this period, the tension of the display screen can make the first housing 2100 and the second housing 2200 open, thus facilitating the switching of the first housing 2100 and the second housing 2200 to relative unfolding.

[0106] refer to Figure 21 , Figure 21 This is a schematic diagram of the state structure of the driving device 100 when the foldable electronic device 1000 provided in this application switches from the third state to the second state. For ease of viewing, Figure 18The first housing 2100, the second housing 2200, the third housing 2300, and the first magnetic element 200 are briefly illustrated using dashed lines. When the foldable electronic device 1000 switches from the folded state to the intermediate state, the slider 20 slides along the X-axis toward the mounting member 10, the drive rod 205 of the slider 20 switches to slide along the third side wall 113, and the drive rod 205 of the slider 20 slides from the end of the third side wall 113 away from the fourth side wall 114 to the end of the third side wall 113 near the fourth side wall 114.

[0107] At this point, the constraint force of the drive rod 205 of the slider 20 on the mounting member 10 disappears. The elastic member 40 returns to its original position and gradually extends, and the mounting member 10 moves slowly along the negative Y-axis under the action of the damping member 30. The drive rod 205 of the slider 20 slides along the fourth side wall 114. The slow movement of the mounting member 10 takes between 3 and 5 seconds, specifically 3 seconds, 4 seconds, or 5 seconds, etc.

[0108] The second magnetic component 300 and the mounting component 10 move slowly and synchronously along the negative Y-axis. During this slow movement, along the Z-axis, the first magnetic component 200 and the second magnetic component 300 change from being completely offset to partially overlapping. The attraction force between the first magnetic component 200 and the second magnetic component 300 gradually increases. However, because the overlapping portion of the first magnetic component 200 and the second magnetic component 300 is relatively small, compared to when they are completely or extensively overlapped, the attraction force between the first magnetic component 200 and the second magnetic component 300 decreases or disappears. Therefore, the attraction force is insufficient to overcome the tension of the display screen. Before sufficient attraction force is generated between the second magnetic component 300 and the first magnetic component 200, the first housing 2100 and the second housing 2200 can be in an open state. At this time, the user can easily unfold the first housing 2100 and the second housing 2200 relative to each other without damaging the second rotating mechanism 2500 and the display screen. At this point, the foldable electronic device 1000 can switch from the intermediate state to the unfolded state without damaging the display screen and the second rotating mechanism 2500. As the foldable electronic device 1000 gradually unfolds, the distance between the first magnetic component 200 and the second magnetic component 300 increases along the X-axis, and the attraction between the first magnetic component 200 and the second magnetic component 300 gradually disappears.

[0109] After the foldable electronic device 1000 switches to the unfolded state, the elastic element 40 continues to gradually extend, and the mounting element 10 and the second magnetic element 300 continue to move slowly along the negative Y-axis. The drive rod 205 of the slider 20 slides along the end of the fourth side wall 114 away from the second side wall 112 to the end of the fourth side wall 114 close to the second side wall 112, until the drive rod 205 of the slider 20 returns to its original position and abuts against the end of the second side wall 112 away from the first side wall 111. The first magnetic element 200 and the second magnetic element 300 are far apart, and no attraction force is generated between them.

[0110] It is understandable that the intermediate state is a transitional state. In actual use, the foldable electronic device 1000 is mostly in an unfolded or folded state. Therefore, under normal circumstances, the foldable electronic device 1000 maintains the intermediate state for a very short time before switching to the folded or unfolded state. Therefore, in this embodiment, the damping element 30 allows the second magnetic element 300 to move slowly, enabling the adsorption force between the first magnetic element 200 and the second magnetic element 300 to slowly recover, so that the first housing 2100 and the second housing 2200 are briefly in an open state. This time is sufficient for the foldable electronic device 1000 to switch from the intermediate state to the unfolded state.

[0111] As can be seen above, during the process of switching the foldable electronic device 1000 from the unfolded state to the intermediate state, and when the foldable electronic device 1000 is in the intermediate state, the first magnetic component 200 and the second magnetic component 300 are stacked along the Z-axis direction, and an adsorption force is generated between the first magnetic component 200 and the second magnetic component 300. The adsorption force keeps the first housing 2100 and the second housing 2200 relatively folded, preventing the first housing 2100 and the second housing 2200 from being in an open state. Relative folding means that the included angle between the first housing 2100 and the second housing 2200 is approximately 0 degrees, and an open state means that the included angle between the first housing 2100 and the second housing 2200 is approximately 5 degrees. Therefore, when the foldable electronic device 1000 switches from the intermediate state to the folded state, the convenience of closing the third housing 2300 is increased, and the third housing 2300 will not come into contact with the first housing 2100, thereby avoiding damage to the display screen by the third housing 2300. During the transition from the folded state to the unfolded state of the foldable electronic device 1000, when the second housing 2200 and the third housing 2300 unfold relative to each other, the attraction force between the first magnetic component 200 and the second magnetic component 300 is briefly less than the tension of the display screen, causing the first housing 2100 and the second housing 2200 to briefly open. This facilitates user operation of the first housing 2100, allowing the first housing 2100 and the second housing 2200 to unfold relative to each other. This prevents damage to the second rotating mechanism 2500 and the display screen when the first housing 2100 and the second housing 2200 unfold.

[0112] In summary, when the first housing 2100 and the second housing 2200 are folded relative to each other, and when the second housing 2200 and the third housing 2300 switch from being relatively unfolded to being relatively folded, the first magnetic element 200 and the second magnetic element 300 are at least partially stacked along the second direction, which is perpendicular to the first direction. There is an attractive force between the first magnetic element 200 and the second magnetic element 300, which keeps the first housing 2100 and the second housing 2200 folded relative to each other. When the second housing 2200 and the third housing 2300 are unfolded relative to each other, the attractive force between the first magnetic element 200 and the second magnetic element 300 decreases or disappears, causing the first housing 2100 and the second housing 2200 to be in an open state, allowing them to switch from being relatively folded to being relatively unfolded. The first direction is the X-axis direction, and the second direction is the Z-axis direction.

[0113] Furthermore, the driving device 100 is used to change the position of the second magnetic element 300, so that the first magnetic element 200 and the second magnetic element 300 are offset along the second direction, thereby reducing or eliminating the adsorption force between the first magnetic element 200 and the second magnetic element 300. By changing the position of the second magnetic element 300, the magnitude of the adsorption force between the first magnetic element 200 and the second magnetic element 300 can be changed. The structure is simple and easy to implement.

[0114] Furthermore, when the second housing 2200 and the third housing 2300 switch from being relatively unfolded to being relatively folded, the second rotating mechanism 2500 drives the drive device 100 to operate, so that the drive device 100 drives the second magnetic element 300 to move away from the first magnetic element 200 along a third direction, so that the first magnetic element 200 and the second magnetic element 300 are offset along a second direction; the third direction is perpendicular to the first direction and perpendicular to the second direction. The third direction is the Y-axis direction.

[0115] When the second housing 2200 and the third housing 2300 switch from relative folding to relative unfolding, the second rotating mechanism 2500 drives the drive device 100 to operate. The drive device 100 drives the second magnetic component 300 to move in a third direction toward the first magnetic component 200. The adsorption force between the first magnetic component 200 and the second magnetic component 300 is less than the force required to keep the first housing 2100 and the second housing 2200 in a relative folded state, so that the first housing 2100 and the second housing 2200 are in an open state. Using the second rotating mechanism 2500 to drive the drive device 100 eliminates the need for additional components, saving on the number of parts and facilitating the thinner and lighter design of the foldable electronic device 1000.

[0116] Furthermore, when the second housing 2200 and the third housing 2300 switch from being relatively unfolded to being relatively folded, the rotating mechanism drives the slider 20 to slide along the first direction away from the mounting member 10; the drive rod 205 slides along the first side wall 111, causing the mounting member 10 to slide along a third direction, and the mounting member 10 drives the second magnetic member 300 to move along a third direction away from the first magnetic member 200; the elastic member 40 is compressed. When the second housing 2200 and the third housing 2300 switch from being relatively folded to being relatively unfolded, the rotating mechanism drives the slider 20 to slide along the first direction towards the mounting member 10; the elastic member 40 extends, and the mounting member 10 drives the second magnetic member 300 to move along multiple third directions towards the first magnetic member 200.

[0117] The damping element 30 is used to reduce the speed at which the mounting element 10 slides along the first connecting shaft 50, so that the adsorption force between the first magnetic element 200 and the second magnetic element 300 is less than the force required to keep the first housing 2100 and the second housing 2200 folded relative to each other.

[0118] In addition, in this embodiment, the structure of the driving device 100 is relatively compact. The second rotating mechanism 2500 is used to drive the driving device 100 to run, so that the driving device 100 can drive the second magnetic component 300 to move. No additional components are required, which can save the number of parts and facilitate the lightweight design of the foldable electronic device 1000.

[0119] In other embodiments, reference is made to Figure 22 , Figure 22 This is a partial structural schematic diagram of a foldable electronic device 1000 provided in another embodiment of this application. The driving device 100 may be omitted; instead, at least one of the first magnetic element 200 and the second magnetic element 300 may be an electromagnet. When the first housing 2100 and the second housing 2200 are folded relative to each other, the first magnetic element 200 and the second magnetic element 300 are at least partially stacked along the Z-axis. When the first housing 2100 and the second housing 2200 are unfolded relative to each other, the first magnetic element 200 and the second magnetic element 300 are at least partially opposite each other along the X-axis.

[0120] In one specific embodiment, the first magnetic component 200 is a permanent magnet 200a, and the second magnetic component 300 is an electromagnet 300a. The second magnetic component 300 is electrically connected to the controller of the foldable electronic device 1000. The controller can be the central processing unit of the foldable electronic device 1000 or a separate control chip, and the separate control chip can be electrically connected to the central processing unit. The controller controls the second magnetic component 300 to be in an energized or de-energized state. When the second magnetic component 300 is de-energized, it has no magnetism, but other magnetic components can attract it. For example, the first magnetic component 200 can attract the second magnetic component 300, creating an attractive force between them. When the second magnetic component 300 is energized, it has magnetism, and can generate attractive or repulsive forces with other magnetic components.

[0121] In this embodiment, the first housing 2100 and the second housing 2200 are folded relative to each other. When the second housing 2200 and the third housing 2300 switch from being relatively unfolded to being relatively folded, the second magnetic component 300 is de-energized, and there is an attractive force between the first magnetic component 200 and the second magnetic component 300, so that the first housing 2100 and the second housing 2200 remain folded relative to each other. When the second housing 2200 and the third housing 2300 are unfolded relative to each other, the second magnetic component 300 is energized, the attractive force between the first magnetic component 200 and the second magnetic component 300 disappears, and there is a repulsive force between the first magnetic component 200 and the second magnetic component 300. The repulsive force causes the first housing 2100 and the second housing 2200 to be in an open state.

[0122] The following details: (Reference) Figure 23 , Figure 23 This is a logic diagram of the first magnetic component 200 and the second magnetic component 300 of a foldable electronic device 1000 provided in another embodiment of this application, when in operation. The controller detects whether the first housing 2100 and the second housing 2200 are relatively unfolded. If the controller detects that the first housing 2100 and the second housing 2200 are relatively unfolded, the first magnetic component 200 and the second magnetic component 300 are too far apart to generate an attractive force. The controller can then control the second magnetic component 300 to be in a de-energized state.

[0123] If the controller detects that the first housing 2100 and the second housing 2200 are not unfolded relative to each other, but are folded relative to each other, the controller will then detect the state of the second housing 2200 and the third housing 2300. If the controller detects that the second housing 2200 and the third housing 2300 have switched from being folded relative to being unfolded relative to each other, it can be understood that when the second housing 2200 and the third housing 2300 switch from being folded relative to being unfolded relative to each other, the included angle between the second housing 2200 and the third housing 2300 gradually increases from a first included angle to a second included angle. The range of the first included angle is as follows: 0° ≤ first included angle < 60°, and the range of the second included angle is as follows: 60° ≤ second included angle ≤ 180°.

[0124] If the controller detects a first angle between the second housing 2200 and the third housing 2300, it de-energizes the second magnetic component 300. At this time, the first magnetic component 200 can attract the second magnetic component 300, creating an attractive force between them. This keeps the first housing 2100 and the second housing 2200 folded relative to each other. This prevents the first housing 2100 and the second housing 2200 from opening up before the third housing 2300 has moved away from the first housing 2100, thus avoiding collisions and damage to the display screen.

[0125] If the controller detects that the second housing 2200 and the third housing 2300 form a second angle, the controller controls the second magnetic component 300 to be energized. At this time, a repulsive force is generated between the first magnetic component 200 and the second magnetic component 300, which allows the first housing 2100 and the second housing 2200 to open, thereby facilitating the switching of the first housing 2100 and the second housing 2200 to relative unfolding.

[0126] If the controller detects that the first housing 2100 and the second housing 2200 are folded relative to each other, and detects that the second housing 2200 and the third housing 2300 have switched from being relatively unfolded to being relatively folded, the controller controls the second magnetic component 300 to be de-energized. At this time, the first magnetic component 200 can attract the second magnetic component 300, so that an attractive force is generated between the first magnetic component 200 and the second magnetic component 300, keeping the first housing 2100 and the second housing 2200 in a stable closed state. This increases the convenience of closing the third housing 2300, and the third housing 2300 will not come into contact with the first housing 2100, thus avoiding damage to the display screen by the third housing 2300.

[0127] By controlling the energization or de-energization of the electromagnet, the force between the first magnetic component 200 and the second magnetic component 300 is changed, thereby causing the first housing 2100 and the second housing 2200 to be in an open state or a relatively folded state, resulting in a relatively simple structure.

[0128] In another specific implementation, Figure 24 This is a partial structural schematic diagram of a foldable electronic device 1000 provided in another embodiment of this application. The first magnetic component 200 is an electromagnet 200b, and the second magnetic component 300 is an electromagnet 300b. Both the first magnetic component 200 and the second magnetic component 300 are electrically connected to the controller of the foldable electronic device 1000. The controller can control the first magnetic component 200 to be in a power-off state or a power-on state, and the controller can also control the second magnetic component 300 to be in a power-off state or a power-on state.

[0129] In this embodiment, the first housing 2100 and the second housing 2200 are folded relative to each other. When the second housing 2200 and the third housing 2300 switch from being folded relative to being unfolded relative to each other, at least one of the first magnetic element 200 and the second magnetic element 300 is energized. There is an attraction force between the first magnetic element 200 and the second magnetic element 300 to keep the first housing 2100 and the second housing 2200 folded relative to each other. When the second housing 2200 and the third housing 2300 are unfolded relative to each other, both the first magnetic element 200 and the second magnetic element 300 are energized. The current direction of the first magnetic element 200 is opposite to the current direction of the second magnetic element 300. There is a repulsive force between the first magnetic element 200 and the second magnetic element 300, and the repulsive force causes the first housing 2100 and the second housing 2200 to be in an open state.

[0130] The following details: If the controller detects that the first housing 2100 and the second housing 2200 are relatively unfolded, the first magnetic component 200 and the second magnetic component 300 are too far apart to generate an attractive force. The controller can control both the first magnetic component 200 and the second magnetic component 300 to be in a de-energized state.

[0131] If the controller detects that the first housing 2100 and the second housing 2200 are folded relative to each other, and detects that the second housing 2200 and the third housing 2300 switch from being folded relative to being unfolded relative to each other, and simultaneously, the second housing 2200 and the third housing 2300 form a second angle, then the controller controls at least one of the first magnetic component 200 and the second magnetic component 300 to be energized. If both the first magnetic component 200 and the second magnetic component 300 are energized, the current direction of the first magnetic component 200 is the same as that of the second magnetic component 300, and at this time, the first magnetic component 200 and the second magnetic component 300 attract each other, generating an attraction force between them. If the second housing 2200 and the third housing 2300 form a first angle, then the controller controls both the first magnetic component 200 and the second magnetic component 300 to be energized, and the current direction of the first magnetic component 200 is opposite to that of the second magnetic component 300. At this time, a repulsive force is generated between the first magnetic component 200 and the second magnetic component 300, which allows the first housing 2100 and the second housing 2200 to open, thereby facilitating the switching of the first housing 2100 and the second housing 2200 to relative unfolding.

[0132] If the controller detects that the first housing 2100 and the second housing 2200 are folded relative to each other, and detects that the second housing 2200 and the third housing 2300 have switched from being relatively unfolded to being relatively folded, the controller controls at least one of the first magnetic component 200 and the second magnetic component 300 to be energized. If both the first magnetic component 200 and the second magnetic component 300 are energized, the current direction of the first magnetic component 200 is the same as that of the second magnetic component 300. At this time, the first magnetic component 200 and the second magnetic component 300 attract each other, generating an attraction force between them. This keeps the first housing 2100 and the second housing 2200 in a stable closed state, increases the convenience of closing the third housing 2300, and prevents the third housing 2300 from contacting the first housing 2100, thus avoiding damage to the display screen.

[0133] The above are merely some embodiments and implementation methods of this application. 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. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A foldable electronic device, characterized by, The foldable electronic device comprises: a first shell, a second shell, a third shell, a first magnetic member and a second magnetic member; the first shell, the second shell and the third shell are arranged in sequence along a first direction, the first shell and the second shell are rotationally connected, and the second shell and the third shell are rotationally connected; the first magnetic member is arranged on the first shell, and the second magnetic member is arranged on the second shell; when the second shell and the third shell are switched from relative unfolding to relative folding, the first magnetic member and the second magnetic member are at least partially stacked along a second direction, the second direction is perpendicular to the first direction, the first magnetic member and the second magnetic member have an adsorption force, the adsorption force keeps the first shell and the second shell in relative folding; the second shell and the third shell are relatively unfolded, and the adsorption force between the first magnetic member and the second magnetic member changes, so that the first shell and the second shell can be switched from relative folding to relative unfolding.

2. The foldable electronic device of claim 1, wherein, The foldable electronic device further comprises a driving device for changing the position of the second magnetic member, so that the first magnetic member and the second magnetic member are staggered along the second direction, and the adsorption force between the first magnetic member and the second magnetic member changes.

3. The foldable electronic device of claim 2, wherein, The foldable electronic device further comprises a rotating mechanism, the second shell and the third shell are rotationally connected through the rotating mechanism; the second magnetic member is arranged on the driving device; the driving device is arranged on the second shell, and the driving device is connected with the rotating mechanism; when the second shell and the third shell are switched from relative unfolding to relative folding, the rotating mechanism drives the driving device to operate, so that the driving device drives the second magnetic member to move along a third direction away from the first magnetic member, so that the first magnetic member and the second magnetic member are staggered along the second direction; the third direction is perpendicular to the first direction, and the third direction is perpendicular to the second direction; when the second shell and the third shell are switched from relative folding to relative unfolding, the rotating mechanism drives the driving device to operate, the driving device drives the second magnetic member to move along a third direction towards the first magnetic member, and the adsorption force between the first magnetic member and the second magnetic member is smaller than the force required for the first shell and the second shell to keep relative folding.

4. The foldable electronic device of claim 3, wherein, The driving device comprises a mounting member, a sliding member and an elastic member, the second magnetic member is arranged on the mounting member, and the mounting member is provided with a driving hole; the sliding member is provided with a driving rod; the mounting member and the sliding member are both in sliding connection with the rotating mechanism, and the two ends of the elastic member abut against the mounting member and the rotating mechanism respectively; the driving rod extends into the driving hole; the side wall surface of the driving hole comprises a first side wall surface, and the first side wall surface is inclined relative to the third direction; When the second shell and the third shell switch from the relative unfolding to the relative folding, the rotating mechanism drives the sliding piece to slide along the first direction away from the mounting piece; the driving rod slides along the first side wall surface, so that the mounting piece slides along the third direction, and the mounting piece drives the second magnetic piece to move along the third direction away from the first magnetic piece; and the elastic piece is compressed; When the second shell and the third shell switch from the relative folding to the relative unfolding, the rotating mechanism drives the sliding piece to slide along the first direction to the mounting piece; the elastic piece is stretched, and the mounting piece drives the second magnetic piece to move along the third direction to the first magnetic piece.

5. The foldable electronic device of claim 4, wherein, The driving device further comprises a first connecting shaft and a damping piece, the first connecting shaft is arranged in the rotating mechanism, and the mounting piece and the elastic piece are sleeved on the first connecting shaft; the first connecting shaft is parallel to the third direction in the axial direction, and the mounting piece can slide along the first connecting shaft; The damping piece is arranged in the mounting piece and sleeved on the first connecting shaft; the damping piece is used for reducing the sliding speed of the mounting piece along the first connecting shaft, so that the adsorption force between the first magnetic piece and the second magnetic piece is smaller than the force required for the first shell and the second shell to keep relative folding.

6. The foldable electronic device of claim 4, wherein, The side wall surface of the driving hole further comprises a second side wall surface, the second side wall surface and the first side wall surface are connected along the first direction, and the second side wall surface is parallel to the first direction; When the second shell and the third shell switch from the relative unfolding to the relative folding, the second shell and the third shell are reduced from a second included angle to a first included angle; When the second shell and the third shell are at the second included angle, the driving rod slides along the second side wall surface, the displacement of the mounting piece along the third direction is zero, and the first magnetic piece and the second magnetic piece are at least partially stacked; the first magnetic piece and the second magnetic piece have an adsorption force, and the adsorption force keeps the first shell and the second shell relative folding; When the second shell and the third shell are at the first included angle, the driving rod slides along the first side wall surface.

7. The foldable electronic device of claim 4, wherein, The rotating mechanism comprises a first swing arm and a bearing base, the bearing base is arranged between the second shell and the third shell; one side of the first swing arm is rotationally and slidably connected with the bearing base, and the other side of the first swing arm is fixedly connected with the second shell; One side of the sliding piece and the mounting piece are slidably connected with the first swing arm, and the other side of the sliding piece is rotationally and slidably connected with the bearing base; When the second shell and the third shell switch from the relative unfolding to the relative folding, or when the second shell and the third shell switch from the relative folding to the relative unfolding, the first swing arm rotates and slides relative to the bearing base to drive the sliding piece to slide along the first direction relative to the first swing arm.

8. The foldable electronic device of claim 7, wherein, The driving device further comprises a connecting swing arm, one side of the connecting swing arm is rotatably connected with the sliding member, and the other side of the connecting swing arm is rotatably and slidably connected with the bearing base; When the first swing arm rotates and slides relative to the bearing base, the connecting swing arm rotates and slides relative to the bearing base, and the connecting swing arm rotates relative to the sliding member, so that the sliding member slides relative to the first swing arm along the first direction.

9. The foldable electronic device of claim 7, wherein, The first swing arm comprises a first surface, a first side and a second side, the first side and the second side are opposite along the first direction, and the first surface is connected between the first side and the second side; the first surface is concavely provided with a connecting sliding groove, and the connecting sliding groove penetrates through the first side and the second side; The mounting member and the sliding member are both slidably connected with the connecting sliding groove, and along the second direction, the part of the mounting member provided with the driving hole and the part of the sliding member provided with the driving rod are stacked, so that the driving rod extends into the driving hole; the mounting member extends out of the connecting sliding groove from the first side, and the sliding member can extend out of the connecting sliding groove from the second side.

10. The foldable electronic device of claim 9, wherein, The connecting sliding groove is provided with a first sliding rail, and the first sliding rail is provided with a first guide sliding groove, and the first guide sliding groove extends along the third direction; The mounting member is provided with a first sliding block, the first sliding block extends into the first guide sliding groove, and the first sliding block can slide in the first guide sliding groove along the third direction.

11. The foldable electronic device of claim 9, wherein, The connecting sliding groove is provided with a second sliding rail, and the second sliding rail is provided with a second guide sliding groove, and the second guide sliding groove extends along the first direction; The sliding member is provided with a second sliding block, the second sliding block extends into the second guide sliding groove, and the second sliding block can slide in the second guide sliding groove along the first direction.

12. The foldable electronic device of any of claims 1-11, wherein, The first magnetic member is a permanent magnet, and the second magnetic member is an electromagnet; When the second shell and the third shell are switched from relative folding to relative unfolding, the second magnetic member is in a de-energized state, the first magnetic member and the second magnetic member have an attractive force, so that the first shell and the second shell remain relatively folded; When the second shell and the third shell are relatively unfolded, the second magnetic member is in an energized state, the attractive force between the first magnetic member and the second magnetic member disappears, and the first magnetic member and the second magnetic member have a repulsive force, so that the first shell and the second shell can be switched from relative folding to relative unfolding.

13. The foldable electronic device of claim 12, wherein, When the second shell and the third shell are switched from relative folding to relative unfolding, the second shell and the third shell increase from a first included angle to a second included angle; When the second shell and the third shell are at a first included angle, the second magnetic member is in a de-energized state, the first magnetic member and the second magnetic member have an attractive force, so that the first shell and the second shell remain relatively folded; When the second shell and the third shell are at the second included angle, the second magnetic element is in the energized state, and the first magnetic element and the second magnetic element have repulsive force therebetween, so that the first shell and the second shell can be switched from the relative folding to the relative unfolding.

14. The foldable electronic device of any of claims 1-11, wherein, The first magnetic element is an electromagnet, and the second magnetic element is an electromagnet. When the first shell and the second shell are relatively folded and the second shell and the third shell are switched from the relative folding to the relative unfolding, at least one of the first magnetic element and the second magnetic element is in the energized state, and the first magnetic element and the second magnetic element have attractive force therebetween, so that the first shell and the second shell remain relatively folded. When the second shell and the third shell are relatively unfolded, the first magnetic element and the second magnetic element are both in the energized state, the current direction of the first magnetic element and the current direction of the second magnetic element are opposite, and the first magnetic element and the second magnetic element have repulsive force therebetween, so that the first shell and the second shell can be switched from the relative folding to the relative unfolding.

15. The foldable electronic device of claim 14, wherein, When the second shell and the third shell are switched from the relative folding to the relative unfolding, the second shell and the third shell increase from the first included angle to the second included angle. When the second shell and the third shell are at the first included angle, at least one of the first magnetic element and the second magnetic element is in the energized state, and the first magnetic element and the second magnetic element have attractive force therebetween, so that the first shell and the second shell remain relatively folded. When the second shell and the third shell are at the second included angle, the first magnetic element and the second magnetic element are both in the energized state, and the current direction of the first magnetic element and the current direction of the second magnetic element are opposite.

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