Folding device, shell assembly and electronic equipment

Abstract

The invention provides a folding device, a shell assembly and electronic equipment. The folding device comprises a supporting piece and a rotating piece rotationally connected with the supporting piece, the supporting piece is provided with a first magnetic piece, and the rotating piece is provided with a second magnetic piece; when the folding device is in a folded state, at least part of the orthographic projection of the first magnetic piece on the rotating piece is located in the second magnetic piece in the extending direction of the supporting piece, the first magnetic piece and the second magnetic piece are in magnetic fit with each other, and the first magnetic piece and the second magnetic piece are arranged in a right corresponding mode. Therefore, the first magnetic part and the second magnetic part can be magnetically matched with each other to generate magnetic force in the extension direction of the supporting part, so that the stability of the supporting part is improved, the movement amplitude of the supporting part is reduced when the supporting part is subjected to falling impact force, and even the supporting part can be kept still. The risk that the supporting piece and the matched part are disengaged in the extending direction of the supporting piece is avoided, and the falling reliability of the whole folding device is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of folding devices, and specifically relates to a folding device, a housing assembly and an electronic device. Background Art

[0002] Competition in the mobile terminal industry is increasingly trending towards large screens and ultra-thin devices, but large screens make the entire device too large and inconvenient to carry. Foldable electronic devices can solve the above problem by changing the size of the electronic device due to their folding function, and are now popular with a large number of users. Electronic devices rely on folding devices to achieve the folding function, but when the current folding device is in a folded state and falls, the support members in the folding device are easily affected by the impact and move, thus separating from other components. Summary of the invention

[0003] In view of this, the first aspect of the present application provides a folding device, which includes a support member and a rotating member rotatably connected to the support member, the support member is provided with a first magnetic member, and the rotating member is provided with a second magnetic member; when the folding device is in a folded state, along the extension direction of the support member, at least part of the positive projection of the first magnetic member on the rotating member is located in the second magnetic member, and the first magnetic member and the second magnetic member are magnetically matched with each other.

[0004] The folding device provided in the first aspect of the present application is characterized in that when the folding device moves, the supporting member will rotate relative to the rotating member matched with it. Therefore, the present application arranges a first supporting member on the supporting member and a second magnetic member on the rotating member. When the supporting member and the rotating member rotate relative to each other, the first magnetic member and the second magnetic member will also rotate relative to each other. For example, when the folding device is in a folded state, along the extension direction of the supporting member, at least part of the positive projection of the first magnetic member on the rotating member is located in the second magnetic member. In other words, the first magnetic member and the second magnetic member are arranged in direct correspondence. Therefore, the first magnetic member and the second magnetic member can cooperate with each other magnetically to generate a magnetic force in the extension direction of the supporting member, thereby improving the stability of the supporting member, so that the supporting member reduces the movement amplitude when subjected to the impact force of falling, and can even remain motionless, thereby avoiding the risk of the supporting member and its matching parts coming out in the extension direction of the supporting member, and improving the falling reliability of the folding device as a whole.

[0005] A second aspect of the present application provides a shell assembly, which includes a first shell, a second shell, and a folding device as provided in the first aspect of the present application, and the folding device is located between the first shell and the second shell.

[0006] The shell assembly provided in the second aspect of the present application can improve the falling reliability of the shell assembly by adopting the folding device provided in the first aspect of the present application.

[0007] A third aspect of the present application provides an electronic device, the electronic device comprising a flexible screen and a housing assembly as provided in the second aspect of the present application, wherein the flexible screen is disposed on the same side of the first housing, the second housing, and the folding device;

[0008] Among them, when the first shell and the second shell are folded with each other, the opposite ends of the flexible screen are folded with each other; when the first shell and the second shell are unfolded with each other, the opposite ends of the flexible screen are unfolded with each other.

[0009] The electronic device provided in the third aspect of the present application, by adopting the shell assembly provided in the second aspect of the present application, can avoid the risk of the support member and its matching components coming out in the extension direction of the support member, avoid the support member damaging the flexible screen, and improve the drop reliability of the entire electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the implementation modes of the present application, the drawings required for use in the implementation modes of the present application will be described below.

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the folding device in an embodiment of the present application when it is in an unfolded state.

[0012] Figure 2 for Figure 1 An exploded view of the folding device shown from one perspective.

[0013] Figure 3 for Figure 2 A schematic diagram of the partial structure of the folding device shown.

[0014] Figure 4 for Figure 1 An exploded view of the folding device shown from another perspective.

[0015] Figure 5 for Figure 4 A schematic diagram of the partial structure of the folding device shown.

[0016] Figure 6 for Figure 1 A cross-sectional schematic diagram of the folding device shown.

[0017] Figure 7 It is a schematic diagram of the three-dimensional structure of the folding device in one embodiment of the present application when it is in a folded state.

[0018] Figure 8 for Figure 7 A partial schematic diagram of the folding device shown.

[0019] Fig. 9 for Figure 7A cross-sectional schematic diagram of the folding device shown.

[0020] Fig.10 It is a partially exploded schematic diagram of a supporting member, a rotating member, and a matching member of a folding device in one embodiment of the present application.

[0021] Fig.11 It is a schematic diagram of the three-dimensional structure of the folding device in an embodiment of the present application when it is in an unfolded state.

[0022] Fig.12 for Fig.11 An exploded schematic diagram of the folding device shown.

[0023] Fig.13 for Fig.11 A front view of the folding device is shown.

[0024] Fig.14 for Fig.11 A schematic diagram of the three-dimensional structure of the rotating shaft module in the folding device is shown.

[0025] Fig.15 for Fig.14 An exploded view of the shaft module is shown.

[0026] Fig.16 It is a schematic diagram of the three-dimensional structure of the folding device in one embodiment of the present application when it is in a folded state.

[0027] Fig.17 for Fig.16 A front view of the folding device is shown.

[0028] Fig.18 for Fig.17 A schematic diagram of the three-dimensional structure of the rotating shaft module in the folding device is shown.

[0029] Fig.19 It is a schematic diagram of the coordination of the first rotating member, the second rotating member, the connecting member, and the base in one embodiment of the present application.

[0030] Fig. 20 It is an exploded schematic diagram of the base, the second rotating member, and the connecting member in one embodiment of the present application.

[0031] Fig.21 for Fig. 20 A front view of the base, the second rotating member, and the connecting member is shown.

[0032] Fig. 22 It is a schematic exploded view of part of the first supporting member and the second rotating member in one embodiment of the present application.

[0033] Fig.23It is a cross-sectional schematic diagram of the base, the second rotating member, and the first supporting member when the folding device is in an unfolded state in one embodiment of the present application.

[0034] Fig.24 It is a cross-sectional schematic diagram of the base, the second rotating member, and the first supporting member when the folding device is in a folded state in one embodiment of the present application.

[0035] Fig.25 It is a schematic diagram of the exploded view of part of the second support member and the base in one embodiment of the present application.

[0036] Fig.26 It is a cross-sectional schematic diagram of the base and the second support member when the folding device is in an unfolded state in one embodiment of the present application.

[0037] Fig. 27 It is a cross-sectional schematic diagram of the base and the second support member when the folding device is in a folded state in one embodiment of the present application.

[0038] Fig.28 This is a schematic diagram of a shell assembly in an expanded state in one embodiment of the present application.

[0039] Fig.29 This is a schematic diagram of a shell assembly in a folded state in one embodiment of the present application.

[0040] Fig.30 A schematic diagram of an electronic device in an unfolded state in one embodiment of the present application.

[0041] Fig.31 This is a schematic diagram of an electronic device in a folded state according to an embodiment of the present application.

[0042] Description of labels:

[0043] Folding device 1, shaft module 1', receiving space 1a, housing assembly 2, electronic device 3, base 10, top surface 101, first bottom surface 102, side surface 103, support member 11, first magnetic member 12, support portion 111, boss 112, first receiving groove 1120, circular shaft 113, rotating shaft 114, second rolling groove 130, third limiting end 131, fourth limiting end 132, third connecting portion 133, rotating member 21, second magnetic member 22, groove 211, rotating portion 212, second receiving groove 2120, arc groove 21 3. Matching member-22, rotating hole-220, first rotating member-30, second rotating member-40, slider-42, first rolling axis-430, connecting member-50, second bottom surface-500, recessed groove-51, sliding groove-52, first supporting member-60, supporting surface-600, first rolling groove-620, first limiting end-621, second limiting end-622, first connecting part-623, second connecting part-624, second supporting member-70, bearing surface-700, second rolling axis-71, first shell-81, second shell-82, flexible screen-90, bending area-91, non-bending area-92. DETAILED DESCRIPTION

[0044] The following are preferred implementations of the present application. It should be noted that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications are also considered to be within the scope of protection of the present application.

[0045] With the market demand for the "display area" of terminal products such as mobile phones and tablets, the competition in the mobile terminal industry is increasingly tending towards large screens and ultra-thinness. However, large screens make the size of the entire machine too large and inconvenient to carry. The smartphone industry is ushering in an experience revolution brought about by form innovation. The display form of mobile phone products has developed from the initial hard screen to flexible screen, from small screen to large screen, from static mechanism to motion mechanism. Recently, major mobile phone manufacturers are developing folding screens. As an electronic device with a new display form, the foldable display terminal has a larger display area when unfolded due to its folding function, and a smaller overall size when folded, which can solve the above problems. It is now loved by the majority of users.

[0046] The foldable display terminal relies on the folding device inside to achieve the folding function. At present, the folding device generally adopts the three-plate principle design to realize the water drop-shaped storage space, using the middle plate and the inclined plate to form the water drop, in which the middle plate is mostly a fixed part, and the inclined plate rotates to form the water drop shape. Since the middle plate of the three-plate water drop is a fixed part, the screen storage space is limited after merging, which has a great adverse effect on screen protection and the thin and light design of the whole machine.

[0047] At present, the four-plate principle design can be adopted, that is, two middle plates and two inclined plates, and the two middle plates can also rotate relative to each other, and the four plates are arranged together to form a water drop-shaped receiving space. And the parts that rotate and cooperate with the middle plate and the inclined plate are usually assembled along the extension direction of the middle plate and the inclined plate during assembly. However, since the middle plate and the inclined plate are both moving parts, due to limitations such as part tolerances and assembly and disassembly space, a certain gap must be left between the middle plate and the inclined plate and other parts in the design. However, in this case, when the positive electrode is in the worst folding state and falls, after the decorative parts of the folding device are hit and transmitted to the internal parts of the folding device, the middle plate and the inclined plate will inevitably move up and down along their extension direction, that is, the assembly direction, causing the middle plate and the inclined plate to be easily separated from other rotating and cooperating parts, which will not only damage the folding device, but also cause the middle plate to top the flexible screen.

[0048] In view of this, in order to solve the above problems, the present application provides a folding device. Please refer to Figure 1-Figure 9 The folding device 1 provided in this embodiment includes a support member 11 and a rotating member 21 rotatably connected to the support member 11, the support member 11 is provided with a first magnetic member 12, and the rotating member 21 is provided with a second magnetic member 22; when the folding device 1 is in a folded state, along the extension direction of the support member 11, at least part of the positive projection of the first magnetic member 12 on the rotating member 21 is located in the second magnetic member 22, and the first magnetic member 12 and the second magnetic member 22 are magnetically matched with each other.

[0049] The folding device 1 includes a support member 11 and a rotating member 21. The folding device 1 may include a variety of support members 11. The support member 11 is mainly used to support the flexible screen 90. When the flexible screen 90 is matched, the flexible screen 90 moves according to a preset motion trajectory. For example, the support member 11 can be an inclined plate, and the support member 11 can also be a middle plate when the middle plate can rotate. The rotating member 21 is rotatably connected to the support member 11, so the parts that can be rotatably connected to the support member 11 can be called rotating members 21. In other words, the support member 11 and the rotating member 21 mentioned in this embodiment do not refer to a certain part, that is, they are not the names of a certain part, but refer to a class of parts. As long as they meet the above-mentioned characteristics, they can be called support members 11 and rotating members 21. As for which parts the support member 11 and the rotating member 21 can be, this application will be described in detail later. In this embodiment, the rotating member 21 is the base 10, and the support member 11 is the second support member 70, that is, the middle plate, for schematic description.

[0050] When the folding device 1 is folded or unfolded, the support member 11 and the rotating member 21 can rotate relative to each other. Specifically, the rotating member 21 can be stationary while the support member 11 rotates, or both the rotating member 21 and the support member 11 rotate. The rotation direction of the support member 11 is perpendicular to the extension direction of the support member 11. Figure 1(shown in D) can also be understood as the length direction of the support member 11. When the folding device 1 is applied to the electronic device 3, the extension direction of the support member 11 can also be understood as the width direction of the electronic device 3.

[0051] From the above content, it can be known that in the related art, the support member 11 and the parts that rotate with it are assembled in the extension direction. Therefore, when in the falling state, the support member 11 will move up and down in the extension direction relative to the rotating member 21, causing the support member 11 and the rotating member 21, or the support member 11 and other matching parts to separate, thereby damaging the folding device 1. Therefore, this embodiment arranges a first support member 60 on the support member 11 and a second magnetic member 22 on the rotating member 21. The first magnetic member 12 and the second magnetic member 22 are parts that can be magnetically matched with each other. Optionally, one of the first magnetic member 12 and the second magnetic member 22 can be magnetic, and the other itself is not magnetic, and magnetism is generated only after the two are close, or the first magnetic member 12 and the second magnetic member 22 are both magnetic. Optionally, magnetic matching can be magnetic attraction or magnetic repulsion.

[0052] Furthermore, when the support member 11 and the rotating member 21 rotate relative to each other, the first magnetic member 12 and the second magnetic member 22 will also rotate relative to each other. For example, when the rotating member 21 is fixed and the support member 11 rotates, if the first magnetic member 12 and the second magnetic member 22 are not arranged on the rotation axis, then when the support member 11 rotates one circle, there is only one position where the first magnetic member 12 and the second magnetic member 22 can be arranged in a positive correspondence, and the first magnetic member 12 and the second magnetic member 22 are arranged alternately at other positions. If the first magnetic member 12 and the second magnetic member 22 are both arranged on the rotation axis, the first magnetic member 12 and the second magnetic member 22 can always maintain a positive corresponding arrangement when the support member 11 rotates. This embodiment is only schematically described as the first magnetic member 12 and the second magnetic member 22 are not arranged on the rotation axis.

[0053] In any case, if Fig. 9The present embodiments shown can make it possible for at least part of the positive projection of the first magnetic member 12 on the rotating member 21 to be located inside the second magnetic member 22 along the extension direction of the support member 11 when the folding device 1 is in the folded state. In other words, the first magnetic member 12 and the second magnetic member 22 are at least partially arranged in direct correspondence. The above content can also be understood as the first magnetic member 12 and the second magnetic member 22 can correspond to each other in the folded state, so that the first magnetic member 12 and the second magnetic member 22 can produce magnetic cooperation and thus generate magnetic force in the extension direction of the support member 11. In other words, the support member 11 and the rotating member 21 can generate additional force in the assembly direction. The existence of this force can improve the stability of the support member 11, so that the support member 11 can reduce the movement amplitude when subjected to the impact force of falling, and can even remain motionless, avoiding the risk of the support member 11 and its matching parts coming out in the extension direction of the support member 11, and improving the drop reliability of the folding device 1.

[0054] As for the relative positions of the first magnetic member 12 and the second magnetic member 22 when the folding device 1 is in the unfolded state, this embodiment is not limited here. For example, in this embodiment, when the first magnetic member 12 and the second magnetic member 22 are not arranged on the rotation axis, such as Figure 6 As shown, when the folding device 1 is in the unfolded state, along the extension direction of the support member 11, the orthographic projection of the first magnetic member 12 on the rotating member 21 is located outside the second magnetic member 22. At this time, the first magnetic member 12 and the second magnetic member 22 will not produce magnetic cooperation, and will not affect the normal movement of the folding device 1. In other words, only in the folded state will the first magnetic member 12 and the second magnetic member 22 cooperate with each other to affect the folding device 1, and will not affect the folding device 1 in other states.

[0055] In other embodiments, when the first magnetic member 12 and the second magnetic member 22 are both arranged on the rotation axis, no matter what state the folding device 1 is in, the first magnetic member 12 is arranged corresponding to the second magnetic member 22. At this time, the first magnetic member 12 and the second magnetic member 22 can always maintain magnetic coordination, thereby always generating magnetic force, affecting the movement of the folding device 1, so that the folding device 1 can improve the drop reliability throughout the whole process. The first magnetic member 12 and the second magnetic member 22 may also not maintain magnetic coordination, and only maintain magnetic coordination when the folding device 1 is in the folded state, for example, the first magnetic member 12 and / or the second magnetic member 22 are designed as electromagnets, which is not limited in this embodiment.

[0056] In this embodiment, when the folding device 1 is in the folded state, the first magnetic member 12 and the second magnetic member 22 are arranged in correspondence, and the magnetic poles of the opposite surfaces of the first magnetic member 12 and the second magnetic member 22 are the same, for example, both are N poles or both are S poles, so that a repulsive force is generated between the first magnetic member 12 and the second magnetic member 22, so that the first magnetic member 12 and the second magnetic member 22 repel each other, and then a repulsive force is generated between the support member 11 and the rotating member 21, resulting in a spacing between the support member 11 and the rotating member 21 in the extension direction of the support member 11. In this way, the support member 11 and the rotating member 21 can be prevented from contacting each other, and the friction between the support member 11 and the rotating member 21 can be avoided, so as to improve the smoothness of the movement of the folding device 1, and also prevent the support member 11 and the rotating member 21 from being worn due to the friction between the support member 11 and the rotating member 21.

[0057] Of course, in other embodiments, the first magnetic member 12 and the second magnetic member 22 may also attract each other, so that an attractive force is generated between the support member 11 and the rotating member 21, causing the support member 11 to be in close contact with the rotating member 21. The contact surface can be used to increase the torque between the support member 11 and the rotating member 21, thereby satisfying the overall opening and closing feel and hovering function of the folding device 1.

[0058] Please refer again Figure 3 and Figure 5 In this embodiment, the support member 11 includes a support portion 111 and a boss 112 located on a support surface 600 away from the support portion 111, and along the extension direction of the support portion 111, the first magnetic member 12 is arranged on at least one side surface of the boss 112; the rotating member 21 includes a rotating portion 212, and along the extension direction of the support portion 111, the second magnetic member 22 is arranged on at least one side surface of the rotating portion 212.

[0059] The support member 11 generally includes a support portion 111, and the support portion 111 has a support surface 600 for supporting the flexible screen 90. A boss 112 may be provided on the side of the support portion 111 away from the support surface 600, and the boss 112 is used to install the first magnetic member 12. The first magnetic member 12 may be installed on at least one side surface of the support portion 111 in the extension direction, so as to facilitate the subsequent matching with the second magnetic member 22. The extension direction of the support portion 111 is the same as the extension direction of the support member 11, and this embodiment is not limited here. This embodiment is only schematically described with the first magnetic member 12 being provided on one side surface of the boss 112. The rotating member 21 includes a rotating portion 212 on which a second magnetic member 22 is disposed. Along the extension direction of the supporting portion 111, the second magnetic member 22 is disposed on at least one side surface of the rotating portion 212, so as to facilitate cooperation with the first magnetic member 12. This embodiment is only schematically illustrated with the second magnetic member 22 being disposed on one side surface of the rotating portion 212 close to the first magnetic member 12, so that the first magnetic member 12 and the second magnetic member 22 are disposed face to face when the folding device 1 is in a folded state.

[0060] Specifically, the support member 11 and the rotating member 21 are connected by the circular shaft 113 and the circular arc groove 213. The support member 11 includes a support portion 111, a circular shaft 113 disposed on the support portion 111 away from the support surface 600, and a boss 112. The boss 112 is provided with a first magnetic member 12. The rotating member 21 is a base 10, a groove 211 is provided on the base 10, a circular arc groove 213 is provided on the side wall on one side of the groove 211, and the side wall on the other side of the groove 211 is the rotating member 212. The second magnetic member 22 is provided on the side wall on the other side of the groove 211. The boss 112 and the circular shaft 113 are disposed in the groove 211, and the circular shaft 113 is disposed in the circular arc groove 213 along the extension direction of the support member 11. When the folding device 1 is in the unfolded state, the first magnetic member 12 and the second magnetic member 22 are staggered, and when the folding device 1 is in the folded state, the first magnetic member 12 and the second magnetic member 22 are arranged in a corresponding manner.

[0061] Of course, in other embodiments, the support member 11 and the rotating member 21 may also cooperate with each other in the form of a rotating shaft 114 and a rotating hole 220 , which is not specifically limited in this embodiment.

[0062] In this embodiment, at least one side surface of the boss 112 is provided with a first receiving groove 1120, and the first magnetic member 12 is disposed in the first receiving groove 1120; at least one side surface of the rotating portion 212 is provided with a second receiving groove 2120, and the second magnetic member 22 is disposed in the second receiving groove 2120.

[0063] In this embodiment, a first receiving groove 1120 can be provided on the surface of the boss 112 near the rotating part 212, so that the first magnetic member 12 is disposed in the first receiving groove 1120, thereby simplifying the structure of the folding device 1 and preventing the first magnetic member 12 from interfering with other components. Optionally, the surface of the first magnetic member 12 near the rotating part 212 is flush with the surface of the boss 112 near the rotating part 212.

[0064] In addition, a second receiving groove 2120 may be provided on the surface of the rotating part 212 near the boss 112, for example, a second receiving groove 2120 may be provided on the side wall of the other side of the groove 211 of the base 10, so that the second magnetic member 22 is arranged in the second receiving groove 2120, thereby simplifying the structure of the folding device 1 and avoiding interference between the second magnetic member 22 and other components. Optionally, the surface of the second magnetic member 22 near the boss 112 is arranged flush with the surface of the rotating part 212 near the boss 112.

[0065] Please refer to Fig.10 In this embodiment, the folding device 1 also includes a matching piece 22 connected to the support member 11. The support member 11 and the matching piece 22 are matched and connected with the rotating hole 220 through the rotating shaft 114. Along the extension direction of the support member 11, the rotating shaft 114 is arranged in the rotating hole 220 along a preset direction; when the folding device 1 is in a folded state, the first magnetic member 12 and the second magnetic member 22 are magnetically matched with each other so that the rotating shaft 114 has a tendency to move along a preset direction.

[0066] In the folding device 1, the support member 11 can cooperate with other parts in addition to the rotating member 21. For example, the support member 11 can also be rotatably connected or slidably connected with other parts. These parts can be collectively referred to as the matching member 22. The support member 11 and the matching member 22 are matched and connected through the rotating shaft 114 and the rotating hole 220, wherein the rotating shaft 114 is provided in one of the support member 11 and the matching member 22, and the rotating hole 220 is provided in the other of the support member 11 and the matching member 22. From the above content, it can be known that when the support member 11 and the matching member 22 are assembled, the rotating shaft 114 is provided in the rotating hole 220 along the extension direction of the support member 11 along a preset direction, such as upward or downward, so as to realize the rotation connection of the support member 11 with the matching member 22. Optionally, if there are multiple rotating shafts 114 and rotating holes 220, the extension directions of the multiple rotating shafts 114 are set to be consistent, and the opening directions of the multiple rotating holes 220 are set to be consistent, so that all the rotating shafts 114 can be set in the rotating holes 220 along the preset direction.

[0067] When the folding device 1 is in the folded state, the first magnetic member 12 and the second magnetic member 22 cooperate with each other to generate magnetic force, such as magnetic attraction or magnetic repulsion. When the magnetic force is applied to the support member 11, the support member 11 will have a tendency to move relative to the support member 11. Regardless of the type of magnetic force, this embodiment can make the rotating shaft 114 have a tendency to move along a preset direction (as shown by F in the figure), so that the rotating shaft 114 is better arranged in the rotating hole 220, and further prevent the rotating shaft 114 from falling out of the rotating hole 220.

[0068] For example, the rotating member 21 is the base 10, the supporting member 11 is the second supporting member 70, the matching member 22 is the first supporting member 60, the second supporting member 70 is provided with a rotating shaft 114, and the first supporting member has a rotating hole 220. The first magnetic member 12 and the second magnetic member 22 cooperate with each other to generate a repulsive force F, which causes the rotating shaft 114 to be further disposed in the rotating hole 220 to prevent the rotating shaft 114 from coming out.

[0069] In this embodiment, at least one of the first magnetic component 12 and the second magnetic component 22 is an electromagnet. When the folding device 1 is not in a folded state, the electromagnet is in a power-off state. When the folding device 1 is in a folded state, the electromagnet is in a power-on state, and the first magnetic component 12 and the second magnetic component 22 are magnetically matched with each other.

[0070] In this embodiment, at least one of the first magnetic member 12 and the second magnetic member 22 can be an electromagnet, for example, the first magnetic member 12 is an electromagnet, or the second magnetic member 22 is an electromagnet, or both the first magnetic member 12 and the second magnetic member 22 are electromagnets. The electromagnet has a switch between being magnetic and non-magnetic when powered on or off, for example, the electromagnet is magnetic when it is powered on, and non-magnetic when it is powered off. Therefore, when the folding device 1 is not in the folding state, the electromagnet is in the power-off state, so that no matter how the first magnetic member 12 and the second magnetic member 22 are arranged, the first magnetic member 12 and the second magnetic member 22 can be prevented from magnetically cooperating with each other. For example, when the first magnetic member 12 and the second magnetic member 22 are both arranged on the rotation axis, even if they are not in the folding state, the first magnetic member 12 and the second magnetic member 22 always maintain a positive corresponding arrangement, and the first magnetic member 12 and the second magnetic member 22 can be prevented from magnetically cooperating with each other in the form of an electromagnet. Only when the folding device 1 is in the folded state, the electromagnet is energized and has magnetism, thereby providing a basis for the first magnetic member 12 and the second magnetic member 22 to have magnetic cooperation.

[0071] Please refer to Figure 11-Figure 18In this embodiment, the folding device 1 further comprises a base 10, two first rotating members 30, two second rotating members 40, two connecting members 50, two first supporting members 60, and two second supporting members 70. The two first rotating members 30 are respectively rotatably connected to opposite sides of the base 10, and the two second rotating members 40 are respectively rotatably connected to opposite sides of the base 10. The two connecting members 50, one of the first rotating member 30 and the second rotating member 40 located on the same side of the base 10 is rotatably connected to one connecting member 50, and the other is slidably connected to one connecting member 50. The two first supporting members 60, each first supporting member 60 is rotatably connected to one connecting member 50, and is slidably and rotatably connected to one second rotating member 40. The two second supporting members 70, each second supporting member 70 is rotatably connected to one first supporting member 60, and is slidably and rotatably connected to the base 10.

[0072] The support member 11 is at least one of the first support member 60 and the second support member 70 , and the rotating member 21 is at least another one of the base 10 , the connecting member 50 , the second rotating member 40 , the first support member 60 , and the second support member 70 that cooperate with the support member 11 .

[0073] The base 10 is the basic component in the folding device 1, and mainly provides a foundation for the installation of other components, that is, many other components of the folding device 1 can be installed on the base 10. And the base 10 itself is fixed, and it is mainly other components installed on the base 10 that perform various movements. In addition, the base 10 can also play a role in supporting the supported parts 11 in some embodiments. The supported parts 11 include but are not limited to various flexible screens 90, or various rigid parts, or other components. This embodiment does not limit the parameters such as the shape, structure, and material of the base 10, as long as it can provide an assembly basis for other components.

[0074] Optionally, the base 10 has a top surface 101, a first bottom surface 102, and a side surface 103 that is bent and connected between the top surface 101 and the first bottom surface 102. When the folding device 1 is subsequently applied to the electronic device 3, the top surface 101 can be close to the flexible screen 90 of the electronic device 3, and the first bottom surface 102 is far away from the flexible screen 90 of the electronic device 3. The first bottom surface 102 is used to be installed on other components, for example, the first bottom surface 102 can be fixed on a decorative part to realize the installation of the base 10. The top surface 101 is used to carry the flexible screen 90, or to install other components such as the support member 11 for carrying the flexible screen 90. The side surface 103 can be used to install other components.

[0075] The two first rotating members 30 in the folding device 1 mainly realize the folding function through their ability to rotate, and through the rotation of the two first rotating members 30, the components connected to the two first rotating members 30 are driven and limited, so that these components move according to the predetermined motion trajectory. The two first rotating members 30 are rotatably connected to one end of the base 10, and the two first rotating members 30 are respectively arranged on opposite sides of the base 10. That is, the two first rotating members 30 can rotate relative to the base 10, which can facilitate the subsequent cooperation of the two first rotating members 30 with the linkage member. In other words, the two first rotating members 30 are rotatably connected to the base 10 at one end close to the base 10. Since the base 10 is fixed, only the two first rotating members 30 rotate. As for the specific cooperation structure of the two first rotating members 30 and the base 10, this application will be described in detail later. It is worth noting that the opposite sides of the base 10 mentioned in this embodiment refer to the opposite sides along the width direction of the base 10, and the width direction can be understood as the arrangement direction of the two first rotating members 30. The opposite sides in this embodiment and the following text can be understood in the same way. The present embodiment does not limit parameters such as the shape, structure, and material of the first rotating member 30 , as long as the first rotating member 30 can be rotatably connected to the base 10 .

[0076] Optionally, in one embodiment, the two first rotating members 30 are arranged axially symmetrically with respect to the base 10. In another embodiment, the two first rotating members 30 are arranged asymmetrically with respect to the base 10, in other words, the two first rotating members 30 have a partially overlapping area in the thickness direction of the folding device 1. This embodiment is only schematically described with the two first rotating members 30 being arranged axially symmetrically with respect to the base 10.

[0077] The second rotating member 40 has the same function as the first rotating member 30. In the folding device 1, the folding function is mainly achieved through its ability to rotate, and the components connected to the two second rotating members 40 are driven and limited by the rotation of the two second rotating members 40, so that these components move according to a predetermined motion trajectory. The two second rotating members 40 are respectively rotatably connected to the opposite sides of the base 10, and the two second rotating members 40 are rotatably connected to the other opposite end of the base 10, that is, the two second rotating members 40 and the two first rotating members 30 are arranged at the opposite ends of the base 10, which not only simplifies the structure of the folding device 1, but also enables the second rotating member 40 and the first rotating member 30 to be better rotatably connected to the base 10. In other words, the two second rotating members 40 are rotatably connected to the base 10 at one end close to the base 10. Since the base 10 is fixed, only the two second rotating members 40 rotate. As for the specific matching structure of the two second rotating members 40 and the base 10, this application will be described in detail later. The opposite ends of the base 10 mentioned above can be understood as the opposite ends of the length direction of the base 10, and the length direction is the axial direction of the base 10, or the central axis direction of the base 10. This embodiment does not limit the parameters such as the shape, structure, and material of the second rotating member 40, as long as the second rotating member 40 can be rotatably connected to the base 10.

[0078] Optionally, in one embodiment, the two second rotating members 40 are arranged axially symmetrically with respect to the base 10. In another embodiment, the two second rotating members 40 are arranged asymmetrically with respect to the base 10, in other words, the two second rotating members 40 have a partially overlapping area in the thickness direction of the folding device 1. This embodiment is only schematically described with the two second rotating members 40 being arranged axially symmetrically with respect to the base 10.

[0079] The connecting member 50 mainly serves to connect various components in the folding device 1. One of the first rotating member 30 and the second rotating member 40 located on the same side of the base 10 is rotatably connected to the connecting member 50, and the other is slidably connected to the connecting member 50. In other words, one of each first rotating member 30 and each second rotating member 40 is rotatably connected to a connecting member 50, and the other is slidably connected to a connecting member 50. This embodiment is only schematically illustrated by the first rotating member 30 being rotatably connected to the connecting member 50 and the second rotating member 40 being slidably connected to the connecting member 50, that is, each first rotating member 30 is rotatably connected to a connecting member 50, that is, each first rotating member 30 is rotatably connected to a connecting member 50 on one side away from the base 10. In other words, the first rotating member 30 can rotate relative to the connecting member 50. And each second rotating member 40 is slidably connected to a connecting member 50, that is, each second rotating member 40 is slidably connected to a connecting member 50 on one side away from the base 10. In other words, the second rotating member 40 can slide relative to the connecting member 50. In addition, the connecting member 50 is subsequently used to connect the housing, so that the connecting member 50 and the housing become a whole. In this way, when the housing rotates, the connecting member 50 can also be driven to rotate together. This embodiment does not limit the shape, structure, material and other parameters of the connecting member 50, as long as the connecting member 50 can realize rotational connection with one rotating member 21 and sliding connection with another rotating member 21.

[0080] In addition, when the folding device 1 is in the unfolded state, the two connecting members 50 are disposed on opposite sides of the base 10, that is, one connecting member 50 is disposed on one side 103 of the base 10, and the other connecting member 50 is disposed on the other side 103 of the base 10. When the folding device 1 is in the folded state, the two connecting members 50 are disposed on the same side of the base 10, that is, the two connecting members 50 are both disposed on the top surface 101 of the base 10.

[0081] The first support member 60 and the second support member 70 are mainly used to support the flexible screen 90 by using the first support member 60 when the folding device 1 is subsequently applied to the electronic device 3. Each first support member 60 is arranged on a connecting member 50. Specifically, the first support member 60 is rotatably connected to the connecting member 50, that is, the first support member 60 can rotate relative to the connecting member 50, and the first support member 60 is slidably and rotatably connected to a second rotating member 40, that is, the first support member 60 can rotate relative to the second rotating member 40, and the first support member 60 can also slide relative to the second rotating member 40. Each second support member 70 can rotate relative to the first support member 60, and can slide and rotate relative to the base 10. At this time, the first support member 60 can also be called an inclined plate, and the second support member 70 can also be called a middle plate.

[0082] It should be noted here that the rotation mentioned above can be understood as the two parts being able to perform circular motion around the axis of rotation, with only angle changes but no displacement changes. Sliding can be understood as the two parts being able to perform parallel motion, with only displacement changes but no angle changes. The fact that the two parts can both slide and rotate means that the two parts have both displacement changes and angle changes, and this sliding and rotating can also be called rolling.

[0083] Therefore, when the folding device 1 moves, the movement track and movement route of each component are unique. Specifically, when the connecting member 50 rotates relative to the base 10, the first rotating member 30 and the second rotating member 40 also rotate relative to the base 10, the other of the first rotating member 30 and the second rotating member 40 slides relative to the connecting member 50, the first supporting member 60 rotates relative to the connecting member 50, and slides and rotates relative to the second rotating member 40, and the second supporting member 70 rotates relative to the first supporting member 60 and rolls relative to the base 10.

[0084] The movement process of the folding device 1 mentioned above has a variety of active and passive logical relationships, and the present application uses one specific movement process as an example to illustrate. When the folding device 1 is folded, that is, when the folding device 1 is in the process of changing from the unfolded state to the folded state, in other words, when the two connecting members 50 rotate relative to the base 10 and approach each other, since the first rotating member 30 and the second rotating member 40 are both rotated to connect the base 10, the connecting member 50 can drive the first rotating member 30 and the second rotating member 40 to rotate relative to the base 10. And in the process of the first rotating member 30 and the second rotating member 40 rotating, the second rotating member 40 can also slide relative to the connecting member 50, that is, the connecting member 50 can slide along the second rotating member 40, thereby changing the distance between the connecting member 50 and the base 10. When the connecting member 50 slides, since the first support member 60 is arranged on the connecting member 50, the connecting member 50 can drive the first support member 60 to slide together. When the first support member 60 slides, the second rotating member 40 can also slide and rotate relative to the first support member 60, thereby driving the first support member 60 to rotate relative to the connecting member 50. The first support member 60 can also drive the second support member 70 to rotate relative to the first support member 60 and roll relative to the base 10 , so that the two first support members 60 and the two second support members 70 can be folded with each other.

[0085] Similarly, when the folding device 1 is unfolded, that is, when the folding device 1 is in the process of changing from the folded state to the unfolded state, in other words, when the two connecting members 50 rotate in the opposite direction relative to the base 10 and move away from each other, since the first rotating member 30 and the second rotating member 40 are both rotated to connect the base 10, the connecting member 50 can drive the first rotating member 30 and the second rotating member 40 to rotate relative to the base 10. In addition, during the rotation of the first rotating member 30 and the second rotating member 40, the second rotating member 40 can also slide relative to the connecting member 50, that is, the connecting member 50 can slide along the second rotating member 40, thereby changing the distance between the connecting member 50 and the base 10. When the connecting member 50 slides, since the first supporting member 60 is disposed on the connecting member 50, the connecting member 50 can drive the first supporting member 60 to slide together. When the first support member 60 slides, the second rotating member 40 can also slide and rotate relative to the first support member 60, thereby driving the first support member 60 to rotate relative to the connecting member 50. The first support member 60 can also drive the second support member 70 to rotate relative to the first support member 60 and roll relative to the base 10, so that the two first support members 60 can be unfolded with each other. Of course, in other embodiments, the active and passive relationships of the above-mentioned multiple components can be reversed. For example, the first support member 60 can also rotate relative to the base 10 to drive the first rotating member 30, the second rotating member 40, and the connecting member 50 to rotate relative to the base 10. Such movement processes and principles should also belong to the protection scope of this application.

[0086] When the two first support members 60 and the two second support members 70 are parallel to each other, and the two first support members 60 and the two second support members 70 are located on opposite sides of the base 10, it can also be understood that one first support member 60 and one second support member 70 are located on one side 103 of the base 10, and the other first support member 60 and the other second support member 70 are located on the other side 103 of the base 10. At this time, the two first support members 60 and the two second support members 70 are in a state of being fully unfolded with each other. In other words, the folding device 1 is in the unfolded state mentioned above. When the two first support members 60 and the two second support members 70 are both located on one side of the base 10, it can also be understood that the two first support members 60 and the two second support members 70 are both located on the top surface 101 of the base 10. At this time, the two first support members 60 and the two second support members 70 are in a state of being fully folded with each other. In other words, the folding device 1 is in a folded state. When the two first support members 60 and the two second support members 70 are folded with each other, it is the process of the folding device 1 from the unfolded state to the folded state. When the two first support members 60 and the two second support members 70 are unfolded, the folding device 1 is in the process of changing from the folded state to the unfolded state.

[0087] When the folding device 1 is in a folded state, the two first support members 60 and the two second support members 70 and the base 10 are jointly enclosed to form a receiving space 1a for receiving the flexible screen 90. The folding device 1 provided in this embodiment can make the cross-sectional shape of the receiving space 1a U-shaped or teardrop-shaped. When the cross-sectional shape of the receiving space 1a is U-shaped, the distance between the two first support members 60 and the two second support members 70 at the end away from the base 10 is equal to the distance between the two first support members 60 and the two second support members 70 at the end close to the base 10. When the cross-sectional shape of the receiving space 1a is teardrop-shaped, the distance between the two first support members 60 and the two second support members 70 at the end away from the base 10 is less than the distance between the two first support members 60 and the two second support members 70 at the end close to the base 10. This embodiment is only schematically illustrated with the cross-sectional shape of the receiving space 1a being teardrop-shaped.

[0088] Optionally, the folding device 1 may be arranged axially symmetrically or asymmetrically relative to the base 10 .

[0089] It is also worth noting that the present application will introduce specific components in detail below. Since most components are two in number and are symmetrically arranged relative to the base 10, this embodiment only uses Fig.11 and Fig.16 The components on the right side of the base 10 in the folding device 1 are schematically illustrated, and the same understanding can be applied to the components on the left side of the base 10 .

[0090] The support member 11 can be at least one of the first support member 60 and the second support member 70. For example, the support member 11 can be the first support member 60, or the support member 11 can also be the second support member 70, or the support member 11 can be the first support member 60 and the second support member 70 at the same time. This embodiment only schematically illustrates the support member 11 as the second support member 70.

[0091] The rotating member 21 is a component that cooperates with the supporting member 11. For example, when the supporting member 11 is the first supporting member 60, the rotating member 21 can be at least one of the connecting member 50, the second rotating member 40, and the second supporting member 70. When the supporting member 11 is the second supporting member 70, the rotating member 21 can be at least one of the first supporting member 60 and the base 10.

[0092] In summary, the support member 11 is a component of the first support member 60 and the second support member 70, and the rotating member 21 is a component of the base 10, the connecting member 50, the second rotating member 40, the first support member 60, and the second support member 70, but they are named differently. In other words, the components that have a rotational cooperation relationship with the first support member 60 and the second support member 70 can be called the rotating member 21.

[0093] One base 10 , two first rotating members 30 , two second rotating members 40 , and two connecting members 50 may be referred to as a shaft module 1 ′. This embodiment may include one or more shaft modules 1 ′. This embodiment is schematically illustrated using only three shaft modules 1 ′.

[0094] Please refer to Fig.19 , Fig.19 Schematic diagram of the coordination of the first rotating member, the second rotating member, the connecting member, and the base in one embodiment of the present application. In this embodiment, the first rotating member 30 and the second rotating member 40 are respectively located at opposite ends of the base 10. The rotation axis between the first rotating member 30 and the base 10 and the rotation axis between the second rotating member 40 and the base 10 do not coincide. When the folding device 1 is in the unfolded state, the rotation axis C1 between the first rotating member 30 and the base 10 is farther away from the first bottom surface 102 and farther away from the connecting member 50 than the rotation axis C2 between the second rotating member 40 and the base 10.

[0095] In other words, the rotation axis (as shown in C1) between the first rotating member 30 and the base 10 and the rotation axis (as shown in C2) between the second rotating member 40 and the base 10 are parallel to each other and have a distance therebetween. In this way, no matter whether the folding device 1 is folded or unfolded, when the connecting member 50 rotates relative to the base 10, thereby driving the first rotating member 30 and the second rotating member 40 to rotate relative to the base 10, since the rotation axis C1 between the first rotating member 30 and the base 10 and the rotation axis C2 between the second rotating member 40 and the base 10 do not coincide, the connecting member 50 can slide relative to the second rotating member 40, thereby changing the distance between the connecting member 50 and the base 10, thereby driving the first supporting member 60 rotatably connected to the connecting member 50 to slide relative to the second rotating member 40, thereby changing the distance between the first supporting member 60 and the base 10, and thus realizing the subsequent movement process. In summary, this embodiment does not require the addition of new components. It only requires the design of the positions of the rotation axis C1 between the first rotating member 30 and the base 10 and the rotation axis C2 between the second rotating member 40 and the base 10 to achieve the sliding of the connecting member 50 relative to the second rotating member 40 .

[0096] On the basis that the rotation axis C1 between the first rotating member 30 and the base 10 and the rotation axis C2 between the second rotating member 40 and the base 10 do not overlap, the present embodiment can also make the rotation axis C1 between the first rotating member 30 and the base 10 farther from the first bottom surface 102 than the rotation axis C2 between the second rotating member 40 and the base 10, and at the same time make the rotation axis C1 between the first rotating member 30 and the base 10 farther from the connecting member 50 than the rotation axis C2 between the second rotating member 40 and the base 10. In other words, the rotation axis C1 between the first rotating member 30 and the base 10 is higher and further to the left than the rotation axis C2 between the second rotating member 40 and the base 10. Therefore, Fig.19 In the figure, the rotation axis C1 between the first rotating member 30 and the base 10 is located at the upper left, and the rotation axis C2 between the second rotating member 40 and the base 10 is located at the lower right.

[0097] By designing the position of the rotation axis as described above, when the first rotating member 30 and the second rotating member 40 rotate, the connecting member 50 can slide in a direction away from the base 10 when the folding device 1 is in the unfolded state to the folded state on the basis of sliding the connecting member 50 relative to the second rotating member 40. When the folding device 1 is in the unfolded state to the unfolded state, the connecting member 50 slides in a direction close to the base 10, which can further make the first supporting member 60 and the second supporting member 70 move according to a preset trajectory, so that when the folding device 1 is in the folded state, the folding device 1 forms a water drop-shaped receiving space 1a.

[0098] In this embodiment, the first rotating member 30 and the base 10 are connected by the first arc track and the first arc groove, the first arc track is provided at one of the first rotating member 30 and the base 10, and the first arc groove is provided at the other of the first rotating member 30 and the base 10. For example, when the first arc track is provided at the first rotating member 30, the first arc groove is provided at the base 10. When the first arc groove is provided at the first rotating member 30, the first arc track is provided at the base 10. This embodiment is only schematically described with the first arc track provided at the first rotating member 30 and the first arc groove provided at the base 10. Optionally, the first structural member is the first rotating member 30, and the second structural member is the base 10. Therefore, the first arc track is the above-mentioned arc track, and the first arc groove is the above-mentioned arc groove.

[0099] Specifically, a circular arc block is provided on one side of the first rotating member 30 close to the base 10, and the block is the first circular arc rail. A protrusion is provided on the base 10, and a circular arc groove is provided in the protrusion, and the groove is the first circular arc groove. The first circular arc rail can be provided in the first circular arc groove, and the axis of the first circular arc groove is colinear with the axis of the first circular arc rail, so that the first rotating member 30 can rotate relative to the base 10. In other words, the first rotating member 30 and the base 10 can be rotatably connected together through the arc slide rail and the arc slide groove 52.

[0100] As for the size and curvature of the first arc groove and the first arc track, they can be designed according to the position of the rotation axis C1 between the first rotating member 30 and the base 10. The design of the first arc groove and the first arc track can make the position of the rotation axis C1 inside the base 10 or outside the base 10. By adjusting the size and curvature of the first arc groove and the first arc track, the position of the rotation axis can be better designed, thereby achieving the positional relationship between the rotation axis C1 and the rotation axis C2. Of course, in other embodiments, the first arc groove can also be provided on the first rotating member 30, and the first arc track can be provided on the base 10.

[0101] In summary, the present embodiment can better adjust the position of the rotation axis C1 by adopting the rotation connection scheme of the first arc groove and the first arc rail, so as to achieve the purpose of making the rotation axis C1 and the rotation axis C2 parallel to each other. In addition, the matching form of the first arc groove and the first arc rail allows the distance between the end of the first rotating member 30 away from the base 10 and the base 10 to be changed when the first rotating member 30 rotates relative to the base 10, thereby adjusting the distance between the first rotating member 30 and the base 10, and further achieving the purpose of controlling the first support member 60 to slide relative to the base 10.

[0102] In this embodiment, the second rotating member 40 and the base 10 are connected by the first rotating shaft and the first rotating hole, the first rotating shaft is provided at one of the second rotating member 40 and the base 10, and the first rotating hole is provided at the other of the second rotating member 40 and the base 10. Since the second rotating member 40 is rotatably connected to the base 10, in this embodiment, the second rotating member 40 and the base 10 can be connected by the first rotating shaft and the first rotating hole, the first rotating shaft is provided at one of the second rotating member 40 and the base 10, and the first rotating hole is provided at the other of the second rotating member 40 and the base 10. For example, when the first rotating shaft is provided at the second rotating member 40, the first rotating hole is provided at the base 10. When the first rotating hole is provided at the second rotating member 40, the first rotating shaft is provided at the base 10. In this embodiment, the first rotating shaft is provided at the second rotating member 40 and the first rotating hole is provided at the base 10 for schematic description only. Optionally, the first rotating shaft and the second rotating member 40 are an integrated structure.

[0103] From the above content, it can be known that since the first rotating member 30 and the base 10 can be matched through the first arc groove and the first arc track, the position of the rotation axis between the first rotating member 30 and the base 10 can be changed by designing the curvature and size of the first arc groove and the first arc track. Therefore, there is no need to change the position of the rotation axis between the second rotating member 40 and the base 10, and only the first rotating shaft and the first rotating hole can be used to match, thereby simplifying the structure of the folding device 1.

[0104] Please refer to Figure 20-21 In this embodiment, the second rotating member 40 and the connecting member 50 are connected by a slider 42 and a slide groove 52. The slider 42 is provided at one of the second rotating member 40 and the connecting member 50, and the slide groove 52 is provided at the other of the second rotating member 40 and the connecting member 50.

[0105] Since the second rotating member 40 is slidably connected to the connecting member 50, in this embodiment, the second rotating member 40 and the connecting member 50 can be connected through the slider 42 and the slide groove 52, the slider 42 is provided on one of the second rotating member 40 and the connecting member 50, and the slide groove 52 is provided on the other of the second rotating member 40 and the connecting member 50. For example, when the slider 42 is provided on the second rotating member 40, the slide groove 52 is provided on the connecting member 50. When the slide groove 52 is provided on the second rotating member 40, the slider 42 is provided on the connecting member 50. In this embodiment, the slider 42 is provided on the second rotating member 40 and the slide groove 52 is provided on the connecting member 50 for schematic description.

[0106] Specifically, Fig. 20 As shown, the second rotating member 40 may be provided with protrusions on opposite sides thereof, and the protrusions are sliders 42. The connecting member 50 may be provided with a recessed groove 51, and sliding grooves are provided on the side walls on opposite sides of the recessed groove 51, and the sliding grooves are sliders 52. The sliders 42 may be arranged in the sliders 52 and slide along the extending direction of the sliders 52. The cooperation between the sliders 42 and the sliders 52 may enable the second rotating member 40 to be better slidably connected to the connecting member 50.

[0107] Please refer again Fig.21 In this embodiment, the connecting member 50 has a second bottom surface 500 for facing away from the flexible screen 90, and the distance between the end of the slider 42 close to the base 10 and the second bottom surface 500 is smaller than the distance between the end of the slider 42 away from the base 10 and the second bottom surface 500.

[0108] When the folding device 1 is applied to the electronic device 3, the connecting member 50 has a second bottom surface 500 facing away from the flexible screen 90. In this embodiment, the distance between the end of the slider 42 close to the base 10 and the second bottom surface 500 can be smaller than the distance between the end of the slider 42 away from the base 10 and the second bottom surface 500. In other words, the slider 42 in this embodiment is not horizontally arranged but tilted, and the farther the slider 42 is from the base 10, the greater the distance between the slider 42 and the second bottom surface 500, that is, gradually tilted upward from left to right. In addition, since the slider 42 is tilted, the slider matching the slider 42 is also tilted, and the distance between the end of the slide 52 close to the base 10 and the second bottom surface 500 is smaller than the distance between the end of the slide 52 away from the base 10 and the second bottom surface 500.

[0109] When the folding device 1 changes from the unfolded state to the folded state, the connecting member 50 slides relative to the second rotating member 40 in a direction away from the base 10. By designing the shapes of the slider 42 and the slide groove 52, the first support member 60 can be further moved according to a preset trajectory, so that when the folding device 1 is in the folded state, the folding device 1 forms a water drop-shaped receiving space 1a. In addition, when the two connecting members 50 slide in a direction away from the base 10, the two connecting members 50 also approach each other, so that when the folding device 1 is in the folded state, the distance between the two connecting members 50 can be reduced, and the thickness of the folding device 1 in the folded state can be reduced. The opposite ends of the flexible screen 90 can also be made to abut against each other, thereby eliminating the gap between the two ends of the flexible screen 90 in the folded state, improving the safety performance of the flexible screen 90, and improving the appearance effect.

[0110] In this embodiment, the first rotating member 30 and the connecting member 50 are connected through the second rotating shaft and the second rotating hole. The second rotating shaft is provided at one of the first rotating member 30 and the connecting member 50, and the second rotating hole is provided at the other of the first rotating member 30 and the connecting member 50.

[0111] Since the first rotating member 30 is rotatably connected to the connecting member 50, the first rotating member 30 and the connecting member 50 can be connected through the second rotating shaft and the second rotating hole in the present embodiment. The second rotating shaft is provided at one of the first rotating member 30 and the connecting member 50, and the second rotating hole is provided at the other of the first rotating member 30 and the connecting member 50. For example, when the second rotating shaft is provided at the first rotating member 30, the second rotating hole is provided at the connecting member 50. When the second rotating hole is provided at the first rotating member 30, the second rotating shaft is provided at the connecting member 50. The present embodiment is only schematically described with the second rotating shaft provided at the first rotating member 30 and the second rotating hole provided at the connecting member 50. Optionally, the second rotating shaft and the first rotating member 30 are an integrated structure.

[0112] From the above content, it can be known that when the connecting member 50 rotates relative to the base 10 and drives the first rotating member 30 and the second rotating member 40 to rotate relative to the base 10, the connecting member 50 will also slide relative to the second rotating member 40. Therefore, the distance between the connecting member 50 and the base 10 will change, and the distance between the connecting member 50 and the first rotating member 30 will also change. However, since the first rotating member 30 is rotatably connected to the base 10, the first rotating member 30 cannot move. Therefore, in order to avoid interference during movement, the first rotating member 30 can be rotatably connected to the connecting member 50. When the connecting member 50 slides relative to the second rotating member 40, the first rotating member 30 also rotates relative to the connecting member 50 to compensate for the distance when the connecting member 50 slides, ensuring the smoothness of the movement of the folding device 1.

[0113] Please refer to Fig. 22In this embodiment, the first support member 60 has a support surface 600, and the second rotating member 40 and the first support member 60 are connected by the first rolling shaft 430 and the first rolling groove 620. The first rolling shaft 430 is provided at one of the second rotating member 40 and the first support member 60, and the first rolling groove 620 is provided at the other of the second rotating member 40 and the first support member 60. The upper surface of the first support member 60 is the support surface 600. In this embodiment, the second rotating member 40 and the first support member 60 can be connected by the first rolling shaft 430 and the first rolling groove 620. The first rolling shaft 430 is provided at one of the second rotating member 40 and the first support member 60, and the first rolling groove 620 is provided at the other of the second rotating member 40 and the first support member 60. For example, when the first rolling shaft 430 is provided at the second rotating member 40, the first rolling groove 620 is provided at the first support member 60. When the first rolling groove 620 is provided at the second rotating member 40, the first rolling shaft 430 is provided at the first support member 60. This embodiment is only schematically described by assuming that the first rolling shaft 430 is disposed on the second rotating member 40 and the first rolling groove 620 is disposed on the first supporting member 60. The first rolling shaft 430 can rotate relative to the first rolling groove 620, so that the first supporting member 60 rotates relative to the second rotating member 40, and the first rolling shaft 430 can also slide relative to the first rolling groove 620, so that the first supporting member 60 slides relative to the second rotating member 40, so that the first supporting member 60 slides and rotates relative to the second rotating member 40. Optionally, the first rolling shaft 430 includes but is not limited to a pin.

[0114] Please refer to Figure 23-Figure 24 In this embodiment, the first rolling groove 620 has a first limiting end 621 and a second limiting end 622 which are arranged opposite to each other. The first limiting end 621 is farther away from the base 10 than the second limiting end 622, and the first limiting end 621 is farther away from the support surface 600 than the second limiting end 622. When the folding device 1 is in the unfolded state, the first rolling axis 430 is positioned at the first limiting end 621, and when the folding device 1 is in the folded state, the first rolling axis 430 is positioned at the second limiting end 622.

[0115] The first rolling groove 620 has two opposite ends: a first limit end 621 and a second limit end 622. Since the first rolling shaft 430 will slide in the first rolling groove 620, the side walls of the first limit end 621 and the second limit end 622 can be used to indicate the sliding position of the first rolling shaft 430, so that when the first rolling shaft 430 slides to the first limit end 621 and the second limit end 622, its sliding stops and it cannot continue to slide. Fig.23As shown, the first limiting end 621 is further away from the base 10 than the second limiting end 622, and the first limiting end 621 is further away from the support surface 600 than the second limiting end 622. In other words, the first limiting end 621 is further to the right and further down than the second limiting end 622, that is, the first limiting end 621 is located at the lower right position, and the second limiting end 622 is located at the upper left position.

[0116] During the movement of the folding device 1, when the folding device 1 is in the unfolded state, the first rolling axis 430 is positioned at the first limit end 621 to prevent the first support member 60 from bending back and damaging the subsequent flexible screen 90. When the folding device 1 is in the folded state, the first rolling axis 430 is positioned at the second limit end 622 to prevent the first support member 60 from bending back and damaging the subsequent flexible screen 90. It can also be understood that when the folding device 1 is in the unfolded state, the first rolling axis 430 is located at the lower right, and when the folding device 1 is in the folded state, the first rolling axis 430 is located at the upper left.

[0117] Therefore, when the folding device 1 is in the process of changing from the unfolded state to the folded state, the connecting member 50 rotates relative to the base 10, driving the first rotating member 30 and the second rotating member 40 to rotate relative to the base 10. Since the rotation axis between the first rotating member 30 and the base 10 and the rotation axis between the second rotating member 40 and the base 10 do not coincide, the connecting member 50 and the first supporting member 60 rotatably connected to the connecting member 50 can slide in a direction away from the base 10 when the first rotating member 30 and the second rotating member 40 rotate relative to the base 10. Therefore, the second rotating member 40 rotates relative to the base 10, and the first supporting member 60 slides in the direction away from the base 10, so that the position of the first rolling shaft 430 in the first rolling groove 620 changes, and moves from the first limit end 621 to the second limit end 622, or the first rolling shaft 430 rolls from the lower right to the upper left in the first rolling groove 620, thereby changing the rotation axis between the first supporting member 60 and the connecting member 50 and the position between the first rolling shaft 430, so that the first supporting member 60 rotates relative to the connecting member 50. Finally, when the folding device 1 is in the folded state, the two first supporting members 60 cooperate with the base 10 to enclose the water drop-shaped receiving space 1a.

[0118] When the folding device 1 is in the process of changing from the folding state to the unfolding state, the connecting member 50 rotates in the opposite direction relative to the base 10, driving the first rotating member 30 and the second rotating member 40 to rotate in the opposite direction relative to the base 10. Since the rotation axis between the first rotating member 30 and the base 10 and the rotation axis between the second rotating member 40 and the base 10 do not coincide, when the first rotating member 30 and the second rotating member 40 rotate relative to the base 10, the connecting member 50 and the first supporting member 60 rotatably connected to the connecting member 50 can slide in the direction close to the base 10. Therefore, the second rotating member 40 rotates relative to the base 10, and the first supporting member 60 slides in the direction close to the base 10, so that the position of the first rolling shaft 430 in the first rolling groove 620 changes, and moves from the second limit end 622 to the first limit end 621, or the first rolling shaft 430 rolls from the upper left to the lower right in the first rolling groove 620, thereby changing the rotation axis between the first supporting member 60 and the connecting member 50 and the position between the first rolling shaft 430, so that the first supporting member 60 rotates in the opposite direction relative to the connecting member 50. Finally, when the folding device 1 is in the unfolded state, the two first supporting members 60 are arranged on opposite sides of the base 10.

[0119] In addition, in other embodiments, the positions of the first limit end 621 and the second limit end 622 can be designed so that the first support member 60 does not rotate relative to the connecting member 50. Therefore, when the folding device 1 is in the folded state, the distance between the two first support members 60 is equal, and the folding device 1 forms a U-shaped receiving space 1a.

[0120] Please refer again Figure 23-Figure 24 In this embodiment, the first rolling groove 620 further has a first connecting portion 623 connecting the first limiting end 621 and the second limiting end 622 , and the first connecting portion 623 protrudes in a direction away from the supporting surface 600 .

[0121] The first rolling groove 620 is a groove with a certain length, so the first rolling groove 620 has a first connecting portion 623 connecting the first limiting end 621 and the second limiting end 622 in addition to the first limiting end 621 and the second limiting end 622. The first rolling shaft 430 can be located in the first connecting portion 623 in other states except the unfolded state and the folded state. In this embodiment, the first connecting portion 623 can be convex in the direction away from the support surface 600, which can also be understood as the shape of the first connecting portion 623 is an arc, and the arc is convex in the direction away from the support surface 600. In this way, the position of the first rolling shaft 430 in the first rolling groove 620 during the entire movement process can be controlled, thereby controlling the positional relationship between the rotation axis between the first support member 60 and the connecting member 50 and the first rolling shaft 430, so that the first support member 60 is rotated to form a water drop shape in the folded state. In addition, the arc-shaped first rolling groove 620 can also make the rolling of the first rolling shaft 430 smoother, thereby improving the fluency and stability of the movement of the folding device 1.

[0122] Of course, in other embodiments, the shape of the first connecting portion 623 may also be a straight line, or other shapes, as long as the positions of the first limiting end 621 and the second limiting end 622 satisfy the above positional relationship.

[0123] Please refer again Figure 23-Figure 24 In this embodiment, the first rolling groove 620 further has a second connecting portion 624 connecting the first connecting portion 623 and the first limiting end 621 , and an extending direction of the second connecting portion 624 is parallel to the supporting surface 600 .

[0124] In addition to the first limiting end 621, the second limiting end 622, and the first connecting portion 623, the first rolling groove 620 may also have a second connecting portion 624 connecting the first connecting portion 623 and the first limiting end 621, that is, the second connecting portion 624 is further provided between the first connecting portion 623 and the first limiting end 621. In other words, when the folding device 1 is in the process of changing from the unfolded state to the folded state, the first rolling shaft 430 does not move directly from the first limiting end 621 to the first connecting portion 623, but moves to the second connecting portion 624 first, and then moves to the first connecting portion 623.

[0125] In this embodiment, the extension direction of the second connecting portion 624 can be parallel to the supporting surface 600, that is, the extension direction of the second connecting portion 624 is horizontal, so that the folding device 1 can use the horizontal second connecting portion 624 to support the first rolling shaft 430 when in the unfolded state, and use the second connecting portion 624 to achieve buffering, thereby preventing the first rolling shaft 430 from moving from the first limiting end 621 to the arc-shaped first connecting portion 623 by itself, thereby improving the stability of the folding device 1. In addition, the horizontally arranged second connecting portion 624 can also reduce the gap between the first rolling shaft 430 and the first rolling groove 620, thereby preventing the existence of a virtual position.

[0126] In this embodiment, the first support member 60 and the connecting member 50 are connected by the third arc track and the third arc groove, the third arc track is provided at one of the first support member 60 and the connecting member 50, and the third arc groove is provided at the other of the first support member 60 and the connecting member 50. Since the first support member 60 is rotatably connected to the connecting member 50, the first support member 60 and the connecting member 50 can be connected by the third arc track and the third arc groove in this embodiment, the third arc track is provided at one of the first support member 60 and the connecting member 50, and the third arc groove is provided at the other of the first support member 60 and the connecting member 50. For example, when the third arc track is provided at the first support member 60, the third arc groove is provided at the connecting member 50. When the third arc groove is provided at the first support member 60, the third arc track is provided at the connecting member 50. This embodiment is only schematically described by providing the third arc groove at the first support member 60 and the third arc track at the connecting member 50.

[0127] The third arc track can be arranged in the third arc groove, and the axis of the third arc groove is colinear with the axis of the third arc track, so that the rotating part of the first support member 60 can rotate relative to the connecting member 50. As for the size and curvature of the third arc groove and the third arc track, they can be designed according to the position of the rotation axis between the first support member 60 and the connecting member 50. In addition, it can be known from the above content that the present embodiment can make the first support member 60 rotate relative to the connecting member 50 by changing the position between the rotation axis between the first support member 60 and the connecting member 50 and the first rolling axis 430. Therefore, the design method of the arc groove and the arc track can make the position of the rotation axis inside the connecting member 50 or outside the connecting member 50. By adjusting the size and curvature of the third arc groove and the third arc track, the position and shape of the first rolling axis 430 and the first rolling groove 620 can be better designed, so that the first support member 60 can rotate relative to the connecting member 50. Of course, in other embodiments, the third arc track can also be arranged on the first support member 60, and the third arc groove can also be arranged on the connecting member 50.

[0128] Optionally, in one embodiment, the connecting member 50 may have a third arc track, which is disposed on one side of the connecting member 50. Correspondingly, the first support member 60 has a rotating portion and a third arc groove. In another embodiment, the connecting member 50 may have two third arc tracks, which are disposed on opposite sides of the connecting member 50. Correspondingly, the first support member 60 has two rotating portions and a third arc groove. This embodiment is only schematically described by using the connecting member 50 having two third arc tracks and the first support member 60 having two rotating portions and a third arc groove.

[0129] In this embodiment, the connecting member 50 and the first support member 60 are connected by a constraint shaft and a constraint groove. The constraint shaft is provided on one of the connecting member 50 and the first support member 60, and the constraint groove is provided on the other of the connecting member 50 and the first support member 60. The constraint shaft and the constraint groove can cooperate with each other to prevent the inclined plate of the folding device 1 from excessively tilting relative to the rotating member 21 of the connecting member 50 during movement, thereby affecting the crease of the flexible screen 90. In other words, this embodiment limits the movement trajectory of the inclined plate by adding a virtual constraint between the connecting member 50 and the second rotating member 40, but the constraint shaft and the constraint groove do not affect the degree of freedom of the folding device 1. This embodiment is only schematically illustrated by providing the constraint shaft on the connecting member 50 and the constraint groove on the first support member 60. Of course, in other embodiments, the constraint shaft can also be provided on the first support member 60, and the constraint groove can be provided on the connecting member 50.

[0130] Please refer to Fig.25 In this embodiment, the second support member 70 is connected to the first support member 60 through the third rotating shaft and the third rotating hole. The second support member 70 has a bearing surface 700, and the second support member 70 is connected to the base 10 through the second rolling shaft 71 and the second rolling groove 130. When the third rotating shaft is provided on the second support member 70, the third rotating hole is provided on the first support member 60, and when the third rotating hole is provided on the second support member 70, the third rotating shaft is provided on the first support member 60. This embodiment is only schematically described by providing the third rotating shaft on the second support member 70 and the third rotating hole on the first support member 60. When the second rolling shaft 71 is provided on the second support member 70, the second rolling groove 130 is provided on the base 10, and when the second rolling shaft 71 is provided on the base 10, the second rolling groove 130 is provided on the second support member 70. This embodiment is only schematically described by providing the second rolling shaft 71 on the base 10 and the second rolling groove 130 on the second support member 70 at one end of the second support member 70 , and providing the second rolling groove 130 on the base 10 and the second rolling shaft 71 on the second support member 70 at the other end of the second support member 70 .

[0131] In this embodiment, the second support member 70 is rotatably connected to the first support member 60 by using the third rotation axis and the third rotation hole, and the second support member 70 is rollably connected to the base 10 by using the second rolling axis 71 and the second rolling groove 130. When the first support member 60 rotates relative to the base 10, since the first support member 60 is rotatably connected to the second support member 70, and the second support member 70 is rollably connected to the base 10, the first support member 60 can drive the second support member 70 to rotate relative to the base 10, thereby freeing up the space where the second support member 70 is located, and even freeing up the gap between the second support member 70 and the base 10, thereby increasing the size and area of ​​the receiving space 1a when the folding device 1 is in the folded state, and better accommodating the flexible screen 90. In addition, in addition to rotating relative to the base 10, the second support member 70 can also slide relative to the base 10 and drive the second support member 70 to rotate relative to the first support member 60, thereby preventing the second support member 70 from interfering. Optionally, when the folding device 1 is in a folded state, the distance between the two second support members 70 at the ends away from the base 10 is greater than the distance between the two second support members 70 at the ends close to the base 10. In other words, a receiving space 1a that is wider at the top and narrower at the bottom is formed, further increasing the size of the teardrop-shaped receiving space 1a.

[0132] Please refer to Figure 26-Figure 27 In this embodiment, the second rolling groove 130 has a third limiting end 131 and a fourth limiting end 132 which are arranged opposite to each other. The third limiting end 131 is closer to the first bottom surface 102 and farther away from the connecting member 50 than the fourth limiting end 132. In other words, the third limiting end 131 is located at the lower left position, and the fourth limiting end 132 is located at the upper right position. When the folding device 1 is in the unfolded state, the second rolling axis 71 is positioned at the third limiting end 131, and when the folding device 1 is in the folded state, the second rolling axis 71 is positioned at the fourth limiting end 132. In this way, not only can the second rolling axis 71 be prevented from being folded back in the folded state and the unfolded state, thereby damaging the flexible screen 90, but also the position of the second rolling axis 71 can be limited, thereby limiting the rotation angle of the second support member 70 relative to the first support member 60, and the rotation angle of the second support member 70 relative to the base 10, thereby cooperating with the first support member 60 and the base 10 to enclose the water drop-shaped receiving space 1a.

[0133] In addition, the second rolling groove 130 further has a third connecting portion 133 connecting the third limiting end 131 and the fourth limiting end 132, and the third connecting portion 133 protrudes in a direction away from the bearing surface 700. When the folding device 1 is in the unfolded state, the protrusion of the third connecting portion 133 is closer to the first bottom surface 102 of the base 10 than the third limiting end 131. The second rolling shaft 71 can be located in the third connecting portion 133 in other states except the unfolded state and the folded state. In this embodiment, the third connecting portion 133 can be protruded in a direction away from the bearing surface 700, which can also be understood as the shape of the third connecting portion 133 being an arc, and the arc is protruded in a direction away from the bearing surface 700, so that the position of the second rolling shaft 71 in the second rolling groove 130 can be controlled during the entire movement process, thereby controlling the positional relationship between the rotation axis between the first support member 60 and the second support member 70 and the second rolling shaft 71, so that the second support member 70 is rotated to form a water drop shape in the folded state. Furthermore, the arc-shaped third connecting portion 133 can also make the rolling of the second rolling shaft 71 smoother, thereby improving the fluency and stability of the movement of the folding device 1 .

[0134] Since the third connecting portion 133 is in an arc shape, the third connecting portion 133 has a protrusion, which is the inflection point of the third connecting portion 133. In this embodiment, the protrusion of the third connecting portion 133 can also be closer to the first bottom surface 102 of the base 10 than the third limiting end 131 when the folding device 1 is in the unfolded state. In other words, the protrusion of the third connecting portion 133 is lower than the lower third limiting end 131. Therefore, when the folding device 1 is in the process of moving from the unfolded state to the folded state, the second rolling axis 71 will first move to the lower right in the third connecting portion 133, and move to a position that is lower than the third limiting end 131, and then move to the upper right in the third connecting portion 133, and finally move to the fourth limiting end 132. The second support member 70 only rotates relative to the base 10 at the initial stage of movement, and does not want to slide relative to the base 10, that is, the second support member 70 does not rotate relative to the first support member 60, thereby avoiding squeezing the flexible screen 90 at the initial stage of movement, thereby affecting the performance of the flexible screen 90 and reducing the life of the flexible screen 90. The second support member 70 does not start to slide relative to the base 10 until the second rolling shaft 71 moves to the protrusion, that is, the second support member 70 rotates relative to the first support member 60. At this time, the rotation of the second support member 70 will have a much smaller impact on the flexible screen 90, ensuring the stability of the flexible screen 90.

[0135] Please refer to Figure 28-Figure 29 The shell assembly 2 provided in this embodiment includes a first shell 81, a second shell 82, and a folding device 1 provided in the above embodiment of the present application, and the folding device 1 is located between the first shell 81 and the second shell 82.

[0136] The housing assembly 2 is a combined component, that is, the housing assembly 2 includes at least two components. In this embodiment, the housing assembly 2 mainly includes two housings and the folding device 1 provided in the above embodiment of the present application. The first housing 81 and the second housing 82 are mainly used to install and carry components. For example, the flexible screen 90 can be carried on the first housing 81 and the second housing 82, and functional modules such as batteries, PCB components, speakers, receivers, buttons, etc. can be arranged in the first housing 81 and the second housing 82. Therefore, the first housing 81 and the second housing 82 mainly play the role of installation and protection. In some embodiments, the surface of the first housing 81 and the second housing 82 can also serve as the appearance surface, so the surface of the first housing 81 and the second housing 82 can be designed accordingly, so that the first housing 81 and the second housing 82 have a unique appearance effect. This embodiment does not limit the parameters such as the shape, material, structure, etc. of the first housing 81 and the second housing 82, as long as the installation and protection functions can be achieved. For example, the material of the first housing 81 and the second housing 82 can be all metal, or all plastic, or partly metal and partly plastic.

[0137] One connecting member 50 of the folding device 1 is connected to the first shell 81, and the other connecting member 50 is connected to the second shell 82, so that when the first shell 81 and the second shell 82 rotate, the two connecting members 50 are driven to rotate relative to the base 10, thereby realizing the subsequent movement process. The shell assembly 2 provided in this embodiment can improve the falling reliability of the shell assembly 2 by adopting the folding device 1 provided in the above-mentioned embodiment of the present application.

[0138] Optionally, the housing assembly 2 may further include a decorative piece, and the base 10 is fixed on the decorative piece, so that the decorative piece is used to protect and shield the base 10 .

[0139] Please refer to Figure 30-Figure 31 The electronic device 3 provided in this embodiment includes a flexible screen 90 and a housing assembly 2 as provided in the above embodiment of the present application, wherein the flexible screen 90 is disposed on the same side of the first housing 81, the second housing 82, and the folding device 1. When the first housing 81 and the second housing 82 are folded together, the opposite ends of the flexible screen 90 are folded together. When the first housing 81 and the second housing 82 are unfolded together, the opposite ends of the flexible screen 90 are unfolded together.

[0140] The electronic device 3 provided in this embodiment includes but is not limited to mobile terminals such as mobile phones, tablet computers, laptop computers, PDAs, portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, and fixed terminals such as digital TVs and desktop computers. This embodiment does not limit the types of electronic devices 3. This embodiment is only schematically described with the electronic device 3 being a mobile phone.

[0141] The electronic device 3 includes a flexible screen 90 and a shell assembly 2. The flexible screen 90 is a component with a certain flexibility. Compared with a rigid component, the flexible screen 90 can be bent to a certain extent. For example, the flexible screen 90 includes but is not limited to various flexible components with corresponding functions such as a flexible display screen, a flexible touch screen, and a flexible touch display screen, or a flexible component fixedly bonded with a flexible support plate, such as a flexible display screen and a flexible touch screen bonded with a flexible steel plate. The flexible screen 90 is arranged on the same side of the first shell 81 and the second shell 82 in the shell assembly 2, and can be bent or flattened with the shell assembly 2. Specifically, the flexible screen 90 has a bending area 91 and a non-bending area 92 arranged on opposite sides of the bending area 91. The bending area 91 is arranged corresponding to the support member 11 of the bonding and folding device 1, and the non-bending area 92 is fixedly arranged on the first shell 81 and the second shell 82. Since the flexible screen 90 in the bending area 91 is correspondingly attached to the support member 11 of the folding device 1, the shape of the folding device 1 changes when it moves, so it can drive the flexible screen 90 in the bending area 91 to bend as well, thereby bending or flattening with the movement of the electronic device 3. Since the non-bending area 92 is fixed on the first shell 81 and the second shell 82, the first shell 81 and the second shell 82 can only rotate relative to each other, and the shape itself will not change. Therefore, even if the first shell 81 and the second shell 82 rotate, the flexible screen 90 on the first shell 81 and the second shell 82 will not bend.

[0142] The electronic device 3 also has an unfolded state and a folded state, wherein the unfolded state refers to the state when the two first rotating members 30 are completely unfolded with each other, which can also be understood as the state when the flexible screen 90 is flattened, or the state when the display surface of the flexible screen 90 is flush. The folded state refers to the state when the two first rotating members 30 are completely folded with each other, which can also be understood as the state when the flexible screen 90 is bent and the two halves of the flexible screen 90 are close to each other, or the state when the display surface of the flexible screen 90 is bent. When the electronic device 3 is folded, the first shell 81 and the second shell 82 are folded with each other, the two first rotating members 30 are folded with each other, and the two ends of the flexible screen 90 are folded with each other. When the electronic device 3 is unfolded, the first shell 81 and the second shell 82 are unfolded with each other, the two first rotating members 30 are unfolded with each other, and the two ends of the flexible screen 90 are unfolded with each other. In other words, when the electronic device 3 is folded, the first shell 81 and the second shell 82 are folded first, and then the two first rotating members 30 are driven to fold with each other, and finally the two ends of the flexible screen 90 are folded with each other. When the electronic device 3 is unfolded, the first shell 81 and the second shell 82 are unfolded first, and then the two first rotating members 30 are driven to unfold each other, and finally the two ends of the flexible screen 90 are unfolded each other.

[0143] The electronic device 3 provided in this embodiment, by adopting the shell assembly 2 provided in the above-mentioned embodiment of the present application, can avoid the risk of the support member 11 and its matching components coming out in the extension direction of the support member 11, avoid the support member 11 damaging the flexible screen 90, and improve the drop reliability of the entire electronic device 3.

[0144] In the description of the present application, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0145] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0146] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated. It can be mechanically connected or electrically connected. It can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0147] The above describes the contents provided by the implementation methods of the present application in detail, and describes and illustrates the principles and implementation methods of the present application. These descriptions are only used to help understand the method and its core ideas of the present application. However, the contents of this specification should not be construed as limiting the present application, and those skilled in the art may make various changes and modifications to the present application without departing from the spirit and scope of the present application. These modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents.

Claims

1. A folding device, characterized in that: The folding device includes a supporting member and a rotating member rotatably connected to the supporting member, the supporting member is provided with a first magnetic member, and the rotating member is provided with a second magnetic member; when the folding device is in a folded state, along the extension direction of the supporting member, at least part of the positive projection of the first magnetic member on the rotating member is located in the second magnetic member, and the first magnetic member and the second magnetic member are magnetically matched with each other.

2. The folding device according to claim 1, characterized in that: When the folding device is in an unfolded state, along the extension direction of the supporting member, the orthographic projection of the first magnetic member on the rotating member is located outside the second magnetic member.

3. The folding device according to claim 1, characterized in that: When the folding device is in the folded state, the first magnetic member and the second magnetic member repel each other.

4. The folding device according to claim 1, characterized in that: The supporting member includes a supporting portion and a boss located on a supporting surface away from the supporting portion, and along the extension direction of the supporting portion, the first magnetic member is arranged on at least one side surface of the boss; the rotating member includes a rotating portion, and along the extension direction of the supporting portion, the second magnetic member is arranged on at least one side surface of the rotating portion.

5. The folding device according to claim 4, characterized in that: A first receiving groove is provided on at least one side surface of the boss, and the first magnetic member is arranged in the first receiving groove; a second receiving groove is provided on at least one side surface of the rotating part, and the second magnetic member is arranged in the second receiving groove.

6. The folding device according to any one of claims 1 to 5, characterized in that: The folding device also includes a mating piece connected to the supporting piece, and the supporting piece and the mating piece are matingly connected via a rotating shaft and a rotating hole. Along the extension direction of the supporting piece, the rotating shaft is arranged in the rotating hole along a preset direction; when the folding device is in the folding state, the first magnetic piece and the second magnetic piece magnetically cooperate with each other so that the rotating shaft has a tendency to move along the preset direction.

7. The folding device according to any one of claims 1 to 5, characterized in that: At least one of the first magnetic component and the second magnetic component is an electromagnet, which is in a power-off state when the folding device is not in the folding state, and in a power-on state when the folding device is in the folding state, and the first magnetic component and the second magnetic component are magnetically matched with each other.

8. The folding device according to any one of claims 1 to 5, characterized in that: The folding device also includes: Pedestal; Two first rotating members are rotatably connected to opposite sides of the base respectively; Two second rotating members are rotatably connected to opposite sides of the base respectively; Two connecting members, one of the first rotating member and the second rotating member located on the same side of the base is rotatably connected to one of the connecting members, and the other is slidably connected to one of the connecting members; two first supporting members, each of which is rotatably connected to one of the connecting members, and is slidably and rotatably connected to one of the second rotating members; and Two second supporting members, each of which is rotatably connected to one of the first supporting members and is slidably and rotatably connected to the base; The supporting member is at least one of the first supporting member and the second supporting member, and the rotating member is at least another one of the base, the connecting member, the second rotating member, the first supporting member, and the second supporting member that cooperate with the supporting member.

9. A housing assembly, characterized in that: The shell assembly includes a first shell, a second shell, and a folding device according to any one of claims 1 to 8, and the folding device is located between the first shell and the second shell.

10. An electronic device, characterized in that: The electronic device comprises a flexible screen and a housing assembly as claimed in claim 9, wherein the flexible screen is arranged on the same side of the first housing, the second housing, and the folding device; Among them, when the first shell and the second shell are folded with each other, the opposite ends of the flexible screen are folded with each other; when the first shell and the second shell are unfolded with each other, the opposite ends of the flexible screen are unfolded with each other.

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