Folding device, shell assembly and electronic equipment

Abstract

The embodiment provides a folding device, a shell assembly and electronic equipment, a base assembly of the folding device comprises a base and a rotating shaft arranged on the base, the axial direction of the rotating shaft is the sliding direction, a rotating piece is rotationally connected with the base, and the end side, in the sliding direction, of the rotating piece is provided with a first cam piece. The second cam piece is arranged on the rotating shaft in a sleeving mode and can be matched with the first cam piece, so that the second cam piece can slide in the sliding direction when the rotating piece rotates relative to the base. The elastic piece sleeves the rotating shaft, one end of the elastic piece abuts against the side, away from the first cam piece, of the second cam piece, the blocking piece sleeves the rotating shaft and abuts against the other end of the elastic piece, and the blocking piece can slide in the sliding direction. The adjusting piece abuts against the side, away from the elastic piece, of the blocking piece and can rotate relative to the blocking piece so that the blocking piece can slide in the sliding direction, the length of the elastic piece can be adjusted, and then the rebound force of the elastic piece is changed to achieve adjustment of the damping torque of the folding device.

Description

Technical Field

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

[0002] In the mobile terminal industry, the competition is increasingly tending towards large screens and thinness. However, large screens make the overall size of the whole machine too large and inconvenient to carry. Foldable electronic devices can change the size of the electronic device due to their folding function, thus solving the above problems and are now very popular among users. Electronic devices rely on folding devices to achieve the folding function. The folding device usually includes a torsion mechanism, which uses the torsion mechanism to provide torsion for the folding device, thereby providing the opening and closing feel. However, at present, the torsion value provided by the torsion mechanism remains unchanged and cannot be adjusted, resulting in only one state of the opening and closing feel. Summary of the Invention

[0003] In view of this, in the first aspect of this application, a folding device is provided, including:

[0004] A base assembly, including a base and a rotating shaft disposed on the base, the axial direction of the rotating shaft being the sliding direction;

[0005] A rotating member, rotatably connected to the base, and a first cam member is provided on the end side of the rotating member along the sliding direction;

[0006] A second cam member, sleeved on the rotating shaft and capable of cooperating with the first cam member, so that when the rotating member rotates relative to the base, the second cam member can slide along the sliding direction;

[0007] An elastic member, sleeved on the rotating shaft and one end thereof abuts against the side of the second cam member away from the first cam member;

[0008] A blocking member, sleeved on the rotating shaft and abuts against the other end of the elastic member, and the blocking member can slide along the sliding direction; and

[0009] An adjusting member, abuts against the side of the blocking member away from the elastic member and can rotate relative to the blocking member, so that the blocking member slides along the sliding direction, thereby adjusting the length of the elastic member.

[0010] The folding device provided in the first aspect of the present application utilizes the cooperation of the base, the rotating shaft, the rotating member, the first cam member, the second cam member, the elastic member, and the blocking member so that when the rotating member rotates, the first cam member and the second cam member cooperate with each other to compress the elastic member, thereby causing the rotating member of the folding device to generate a torque. On this basis, the present application adds an adjusting member so that it abuts against the side of the blocking member away from the elastic member and the adjusting member can rotate relative to the blocking member, so that when the adjusting member rotates, it can drive the blocking member to slide along the sliding direction. Since the blocking member abuts against the other end of the elastic member, the blocking member can drive the other end of the elastic member to slide along the sliding direction. Since one end of the elastic member abuts against the second cam member, the second cam member cooperates with the first cam member on the rotating member, resulting in that when the other end of the elastic member slides, it will not drive one end of the elastic member to slide, and one end of the elastic member remains fixed, so that the length of the elastic member is adjusted, such as reducing the length or increasing the length, thereby changing the initial state of the elastic member. In this way, when the rotating member rotates, the elastic member gives different rebound forces to the second cam member when it is compressed by the cooperation of the first cam member and the second cam member: increase or decrease, thereby changing the torsion of the rotating member in the folding device.

[0011] In summary, the present application utilizes the adjusting member and the blocking member to compress or stretch the elastic member so as to change the initial state of the elastic member, thereby changing the rebound force given by the elastic member to the second cam member, and then changing the torque of the rotating member in the folding device. In other words, the present embodiment changes the compression amount of the elastic member by twisting the adjusting member, and then changes the rebound force of the elastic member to adjust the damping torque of the folding device. The folding device provided by the present embodiment can adjust the torque without disassembling the parts, and can also assemble folding devices with different torque values by adjusting the compression value of the elastic member without replacing the parts, so as to achieve adjustable torque to meet the needs of different user groups. Users can increase or decrease the torque according to their preferences, so as to adjust the damping feel of the opening and closing of the whole machine. And when the mechanical properties of the elastic member decay after the folding device has been used for a period of time, the adjusting member can be used to readjust the torque of the folding device, thereby avoiding the replacement of the entire torque mechanism and reducing the difficulty and cost of maintenance.

[0012] 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 connected between the first shell and the second shell.

[0013] The shell assembly provided in the second aspect of the present application can adjust the torque and thus adjust the opening and closing feel of the whole machine by adopting the folding device provided in the first aspect of the present application.

[0014] A third aspect of the present application provides an electronic device, which includes a flexible screen and a housing assembly as provided in the second aspect of the present application. The flexible screen is disposed on the same side of the first housing, the second housing, and the folding device.

[0015] For the electronic device provided in the third aspect of the present application, by adopting the housing assembly provided in the second aspect of the present application, the adjustment of torsion can be achieved to adjust the opening and closing feel of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be described below.

[0017] Figure 1 It is a schematic perspective view of a folding device in an embodiment of the present application.

[0018] Figure 2 For Figure 1 the exploded view of the folding device shown.

[0019] Figure 3 For Figure 1 the top view of the folding device shown.

[0020] Figure 4 It is the top view of the adjusting member after rotation in an embodiment of the present application.

[0021] Figure 5 It is the schematic perspective view of the adjusting member in an embodiment of the present application.

[0022] Figure 6 For Figure 5 the schematic perspective view of another perspective of the adjusting member shown.

[0023] Figure 7 For Figure 5 the top view of the adjusting portion in the adjusting member shown.

[0024] Figure 8 It is the schematic perspective view of the adjusting member in another embodiment of the present application.

[0025] Figure 9 For Figure 8 the schematic perspective view of another perspective of the adjusting member shown.

[0026] Figure 10 For Figure 8 the top view of the adjusting portion in the adjusting member shown.

[0027] Figure 11 It is the exploded view of the synchronization component, the base, and the blocking member in an embodiment of the present application.

[0028] Figure 12 Schematic perspective view of the folding device in another embodiment of the present application.

[0029] Figure 13 It is Figure 12 Bottom view of the folding device shown.

[0030] Figure 14 Schematic perspective view of the decorative member and the adjusting member in cooperation in one embodiment of the present application.

[0031] Figure 15 It is Figure 14 Exploded view of the decorative member and the adjusting member shown.

[0032] Figure 16 It is Figure 14 Bottom view of the decorative member and the adjusting member shown.

[0033] Figure 17 Schematic perspective view of the folding device in the unfolded state in one embodiment of the present application.

[0034] Figure 18 It is Figure 17 Exploded view of the folding device shown.

[0035] Figure 19 It is Figure 17 Front view of the folding device shown.

[0036] Figure 20 Schematic perspective view of the folding device in the folded state in one embodiment of the present application.

[0037] Figure 21 It is Figure 20 Front view of the folding device shown.

[0038] Figure 22 Schematic diagram of the cooperation of the base, the first rotating member, the second rotating member and the connecting member in one embodiment of the present application.

[0039] Figure 23 Exploded view of the base, the second rotating member, and the connecting member in one embodiment of the present application.

[0040] Figure 24 Exploded view of the second rotating member and part of the support members in one embodiment of the present application.

[0041] Figure 25 Cross-sectional view of the base, the second rotating member, and the support members when the folding device is in the unfolded state in one embodiment of the present application.

[0042] Figure 26Schematic cross-sectional view of the base, the second rotating member, and the support member when the folding device is in the folded state in an embodiment of the present application.

[0043] Figure 27 Schematic perspective view of the housing assembly when it is in the unfolded state in an embodiment of the present application.

[0044] Figure 28 Schematic perspective view of the housing assembly when it is in the folded state in an embodiment of the present application.

[0045] Figure 29 Schematic perspective view of the electronic device when it is in the unfolded state in an embodiment of the present application.

[0046] Figure 30 Schematic perspective view of the electronic device when it is in the folded state in an embodiment of the present application.

[0047] Reference numeral description:

[0048] Folding device - 1, screen-containing space - 1a, track mechanism - 1b, torsion assembly - 1c, synchronization assembly - 1d, half-axis assembly - 1e, housing assembly - 2, electronic device - 3, base assembly - 10', base - 10, bottom surface - 100, first rotation axis - C1, second rotation axis - C2, rotating shaft - 11, rotating member - 20', first cam member - 21, second cam member - 22, elastic member - 23, blocking member - 24, mating surface - 240, fixing member - 25, connecting portion - 26, first rotating member - 30, second rotating member - 40, sliding block - 42, first rolling shaft - 43, connecting member - 50, back surface - 500, sliding groove - 52, support member - 60, support portion - 61, support surface - 610, rolling portion - 62, first rolling groove - 620, first limiting end - 621, second limiting end - 622, first communication portion - 623, second communication portion - 624, carrier member - 70, decorative member - 71, through hole - 710, adjusting member - 80, adjusting portion - 81, rotation center - 810, first abutting surface - 811, second abutting surface - 812, third abutting surface - 813, arc surface - 814, rotating shaft - 82, first mating portion - 820, gear position mark - 821, gear - 83, convex shaft - 84, first housing - 91, second housing - 92, flexible screen - 93, bending region - 930, non-bending region - 931. Detailed implementation manners

[0049] The following are the preferred embodiments of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present application.

[0050] 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 whole 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 have been developing folding screens, striving to expand the form and display boundaries of mobile phone products, so that they have the functions of mobile phones, tablets and even computers. As an electronic device with a new display form, the foldable display terminal can be unfolded or closed due to its folding function, and has a larger display area in the unfolded state and a smaller overall size in the folded state, which can solve the above problems. It is now loved by the majority of users.

[0051] The foldable display terminal relies on the folding device inside to achieve the folding function. The folding device usually uses a torque mechanism to provide torque for the folding device. The torque can provide damping for the user in the process of unfolding and folding the folding device, achieving the opening and closing feel and hovering effect. For example, the axial cam solution uses two cams with a spring, and the cam continuously compresses the spring, so that the spring provides axial positive pressure, which can be converted into friction and then form torque.

[0052] At present, the torque value that the torque mechanism can provide is usually fixed and cannot be adjusted, resulting in only one state of feel when the folding mobile terminal is unfolded and folded after leaving the factory. However, for different consumers, some people feel that the opening and closing feel of the mobile phone with relatively small damping is smooth, while others feel that the opening and closing feel of the folding mobile phone is not smooth.

[0053] In order to solve the above technical problems, the present application provides a folding device with adjustable torque. Figures 1 - 4 , Figure 1 It is a schematic diagram of the three-dimensional structure of the folding device in one embodiment of the present application. Figure 2 for Figure 1 An exploded view of the folding device is shown. Figure 3 for Figure 1 A top view of the folding device is shown. Figure 4It is a top view of the adjusting member of the folding device after rotation in one embodiment of the present application. The folding device 1 provided in this embodiment includes a base assembly 10', a rotating member 20', a second cam member 22, an elastic member 23, a blocking member 24, and an adjusting member 80. The base assembly 10' includes a base 10, and a rotating shaft 11 arranged on the base 10, the axial direction of the rotating shaft 11 is a sliding direction, the rotating member 20' is rotatably connected to the base 10, and a first cam member 21 is provided on the end side of the rotating member 20' along the sliding direction. The second cam member 22 is sleeved on the rotating shaft 11 and can cooperate with the first cam member 21, so that the second cam member 22 can slide along the sliding direction when the rotating member 20' rotates relative to the base 10. The elastic member 23 is sleeved on the rotating shaft 11 and one end abuts against the side of the second cam member 22 away from the first cam member 21, and the blocking member 24 is sleeved on the rotating shaft 11 and abuts against the other end of the elastic member 23, and the blocking member 24 can slide along the sliding direction. The adjusting member 80 is held against a side of the blocking member 24 away from the elastic member 23 and can rotate relative to the blocking member 24 so that the blocking member 24 slides along the sliding direction, thereby adjusting the length of the elastic member 23 .

[0054] The folding device 1 can also be called a rotating shaft 11 or a hinge, and is mainly used in electronic products such as mobile phones, tablets, and computers, and can also be used in other non-electronic products that require a torque rotating shaft 11, such as doors and windows. The folding device 1 provided in this embodiment mainly includes a base assembly 10', a rotating member 20', a second cam member 22, an elastic member 23, a blocking member 24, and an adjusting member 80, which means that this embodiment can solve the above-mentioned technical problems by only using the base assembly 10', the rotating member 20', the second cam member 22, the elastic member 23, the blocking member 24, and the adjusting member 80, but in other embodiments, the folding device 1 may also include other components, such as a connecting member 50, a rotating member 20', a synchronization mechanism, a torque mechanism, etc. Next, this embodiment will introduce the base assembly 10', the rotating member 20', the second cam member 22, the elastic member 23, the blocking member 24, and the adjusting member 80 in detail.

[0055] The base assembly 10' is a component structure composed of a base 10 and a rotating shaft 11. The base 10 is the basic component of the folding device 1, and is mainly used to provide a foundation for the installation and fixing of other components, that is, many components of the folding device 1 can be installed on the base 10. When the folding device 1 moves, the base 10 itself is fixed, and it is mainly the other components of the folding device 1 that perform various movements. 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 foundation for other components.

[0056] Optionally, the base 10 has a top surface, a bottom surface 100 disposed opposite to each other, and side surfaces that bend and connect the top surface and the bottom surface 100. When the folding device 1 is subsequently applied to the electronic device 3, the top surface can be close to the flexible screen 93 of the electronic device 3, the bottom surface 100 is away from the flexible screen 93 and the bottom surface 100 can also cooperate with the shielding member to shield the base 10 by using the shielding member. In other words, the upper surface of the base 10 is the top surface, and the lower surface is the bottom surface 100. Further optionally, both the top surface and the bottom surface 100 are flat surfaces, which is convenient for subsequent cooperation with other components. The side surfaces are convex arc surfaces, which improve the appearance effect of the base 10 and are convenient for cooperation with the shielding member.

[0057] The rotating shaft 11 can be disposed on the base 10 and also provide a mounting basis for other components. For example, components such as the second cam member 22, the elastic member 23, and the blocking member 24 can be sleeved on the rotating shaft 11 to achieve various movements, such as sliding and rotating. When the component slides on the rotating shaft 11, its sliding direction is parallel to the axial direction of the rotating shaft 11. Therefore, in this embodiment and the following text, the axial direction of the rotating shaft 11 is set as the sliding direction (as shown by D in Figures 3 - 4 ). This embodiment does not limit parameters such as the shape, structure, and material of the rotating shaft 11, as long as other components can be sleeved on it. Optionally, the rotating shaft 11 and the base 10 can be an integral structure or a split structure. This embodiment only schematically illustrates the split structure of the rotating shaft 11 and the base 10. Further optionally, the rotating shaft 11 can be fixed relative to the base 10, or the rotating shaft 11 itself can also rotate relative to the base 10. This embodiment only schematically illustrates the rotating shaft 11 being fixed relative to the base 10.

[0058] The rotating member 20' mainly plays a role of rotation in the folding device 1, enabling the folding device 1 to have the ability to fold and unfold, and driving and limiting the movement of other components through the rotation of the rotating member 20', so that other components move along a predetermined trajectory. One end of the rotating member 20' is rotatably connected to the base 10, enabling the rotating member 20' to rotate relative to the base 10, and the other end of the rotating member 20' can be connected to other components such as the connecting member 50 subsequently. This embodiment does not limit parameters such as the shape, structure, and material of the rotating member 20', as long as it can be rotatably connected to the base 10.

[0059] The rotation of the rotating member 20' enables the folding device 1 to have multiple different states, such as the unfolded state and the folded state. The unfolded state can be understood as the state when the rotating member 20' is fully flattened. At this time, the other end of the rotating member 20' is arranged corresponding to the side surface of the base 10, which can make the upper surface of the subsequent support member 60 horizontal, and further enable the flexible screen 93 to be fully unfolded. The folded state can be understood as the state when the rotating member 20' is fully folded. At this time, the other end of the rotating member 20' is arranged corresponding to the top surface of the base 10, which can make the opposite ends of the subsequent flexible screen 93 approach each other, and the flexible screen 93 reaches the fully folded state. And the process of the folding device 1 from the unfolded state to the folded state can be understood as the folding process of the folding device 1, and the process of the folding device 1 from the folded state to the unfolded state can be understood as the unfolding process of the folding device 1.

[0060] Optionally, the rotating member 20' can be directly rotatably connected to the base 10 itself, or the rotating member 20' can also be sleeved on the rotating shaft 11 to achieve an indirect rotational connection to the base 10. In this embodiment, only the case where the rotating member 20' is sleeved on the rotating shaft 11 is used for illustrative purposes.

[0061] In this embodiment, both the rotating shaft 11 and the rotating member 20' can be two, that is, the folding device 1 includes two rotating members 20' and two rotating shafts 11. The two rotating shafts 11 are arranged on opposite sides of the base 10, that is, one rotating shaft 11 is arranged on the left side of the base 10, and the other rotating shaft 11 is arranged on the right side of the base 10. Optionally, the two rotating shafts 11 are arranged axially symmetrically with respect to the base 10. Each rotating member 20' is fixed to one rotating shaft 11, that is, one rotating member 20' is sleeved on one rotating shaft 11, and the other rotating member 20' is sleeved on the other rotating shaft 11. Thus, the components on the left and right sides of the base 10 can be respectively controlled to be unfolded and folded by using the two rotating shafts 11. Optionally, the two rotating shafts 11 and the two rotating members 20' are arranged axially symmetrically with respect to the base 10.

[0062] In this embodiment, two second cam members 22 can be simultaneously sleeved on the two rotating shafts 11 and connected to each other. In this way, when the rotating member 20' rotates, the two first cam members 21 of the two rotating members 20' cooperate with the two second cam members 22. Since the two cam members are connected together and sleeved on the two rotating shafts 11, the second cam member 22 cannot move relative to the two rotating shafts 11 and can only slide relative to the rotating shaft 11.

[0063] In the related art, a torsion mechanism is usually provided to supply torsion to the rotating member 20', improving the rotation stability of the rotating member 20', and even enabling the rotating member 20' to have a hovering function. For example, a first cam member 21 is provided on the end side of the rotating member 20' along its axial direction. A second cam member 22, an elastic member 23, and a blocking member 24 are sleeved on the rotating shaft 11. The second cam member 22 cooperates with the first cam member 21. One end of the elastic member 23 abuts against the second cam member 22, and the other end abuts against the blocking member 24. The elastic member 23 is in a compressed state in its initial state, providing a certain pre-pressure to keep the first cam member 21 and the second cam member 22 in close contact. Optionally, the elastic member 23 includes, but is not limited to, a spring.

[0064] The rotating shaft 11 aligns the centers of motion of the rotating member 20', the first cam member 21, the second cam member 22, the elastic member 23, and the base 10. When the rotating member 20' rotates relative to the base 10 around the rotating shaft 11, the cam surfaces of the first cam member 21 and the second cam member 22 mesh with each other, causing one end of the elastic member 23 to slide in a direction away from the rotating member 20'. However, since the blocking member 24 is in a fixed state at this time, the other end of the elastic member 23 also remains fixed, ultimately causing the elastic member 23 to be gradually compressed. Thus, the rebounding force of the elastic member 23 in the compressed state is used to provide a positive pressure between the first cam member 21 and the second cam member 22. The mutual extrusion of the cam surfaces of the first cam member 21 and the second cam member 22 increases the friction between the first cam member 21 and the second cam member 22, thereby increasing the torsion of the rotating member 20' in the folding device 1. In other words, the torsion required for the rotation of the rotating member 20' basically depends on the friction generated during the rotation by the extrusion of the elastic member 23 on the parts. Therefore, the force value that the elastic member 23 can provide plays a crucial role. Thus, it can be found that the compressed state or the compression amount of the elastic member 23 in the related art always remains fixed. Therefore, the torsion provided by the elastic member 23 for the rotating member 20' also remains fixed and cannot be changed, resulting in only one state for the feel of unfolding and folding. For example, it is impossible to change the sliding distance of the second cam member 22 when the first cam member 21 and the second cam member 22 cooperate, thereby affecting the compression amount of the elastic member 23. Similarly, it is also impossible to change the initial state of the elastic member 23.

[0065] In this embodiment, an adjusting member 80 can be added on the basis of the related art. The main function of the adjusting member 80 is to adjust the torsion of the folding device 1 by adjusting the compression length of the elastic member 23 after assembly. The adjusting member 80 always abuts against the side of the blocking member 24 away from the elastic member 23 and the adjusting member 80 can rotate relative to the blocking member 24. As for where the adjusting member 80 is arranged, this embodiment does not limit it here. For example, in one embodiment, the adjusting member 80 can be arranged on the base 10. In other embodiments, the adjusting member 80 can be arranged on other components such as the decorative member 71, as long as it is ensured that the adjusting member 80 can rotate relative to the blocking member 24 and always abuts against the blocking member 24.

[0066] When the adjusting member 80 rotates, the relationship between the adjusting member 80 and the blocking member 24 will change. For example, the surface where the adjusting member 80 abuts against the blocking member 24 will change. Therefore, the abutting surface can be used to control the sliding of the blocking member 24 along the sliding direction. Since the blocking member 24 abuts against the other end of the elastic member 23, the blocking member 24 can drive the other end of the elastic member 23 to also slide along the sliding direction. Also, since one end of the elastic member 23 abuts against the second cam member 22, and the second cam member 22 cooperates with the first cam member 21 on the rotating member 20', when the other end of the elastic member 23 slides, it will not drive one end of the elastic member 23 to slide, and one end of the elastic member 23 remains fixed, thereby adjusting the length of the elastic member 23, such as reducing the length or increasing the length, and thus changing the initial state of the elastic member 23. For example, when the adjusting member 80 causes the blocking member 24 to slide in the direction close to the second blocking member 24, the other end of the elastic member 23 slides in the direction close to one end of the elastic member 23, so that the length of the elastic member 23 is reduced and the elastic member 23 is further compressed. When the adjusting member 80 causes the blocking member 24 to slide in the direction away from the second blocking member 24, the other end of the elastic member 23 slides in the direction away from one end of the elastic member 23, so that the length of the elastic member 23 is increased and the compression degree of the elastic member 23 is reduced. In other words, in this embodiment, by using the adjusting member 80 to change the initial length of the elastic member 23, the magnitude of the initial elastic force of the elastic member 23 is changed. In this way, when the rotating member 20' rotates, the rebound force given to the second cam member 22 when the elastic member 23 is compressed by the cooperation of the first cam member 21 and the second cam member 22 will also be different: increased or decreased, thereby changing the torsion of the rotating member 20' in the folding device 1. For example, when the adjusting member 80 compresses the elastic member 23, the initial elastic force of the elastic member 23 is increased. Therefore, when the rotating member 20' rotates by the same angle, the rebound force given by the elastic member 23 to the second cam member 22 is greater and the torsion of the rotating member 20' is greater. When the adjusting member 80 elongates the elastic member 23, the initial elastic force of the elastic member 23 is reduced. Therefore, when the rotating member 20' rotates by the same angle, the rebound force given by the elastic member 23 to the second cam member 22 is smaller and the torsion of the rotating member 20' is smaller. Therefore, the adjusting member 80 can also be called a spring preloading cam.

[0067] In summary, the present embodiment utilizes the adjusting member 80 and the blocking member 24 to compress or stretch the elastic member 23, thereby changing the initial state of the elastic member 23, thereby changing the rebound force given by the elastic member 23 to the second cam member 22, and then changing the torque of the rotating member 20' in the folding device 1. In other words, the present embodiment changes the compression amount of the elastic member 23 by twisting the adjusting member 80, thereby changing the rebound force of the elastic member 23 to adjust the damping torque of the folding device 1. The folding device 1 provided in the present embodiment can adjust the torque without disassembling the parts, and can also assemble the folding device 1 with different torque values by adjusting the compression value of the elastic member without replacing the parts, so as to achieve adjustable torque to meet the needs of different user groups. The user can increase or decrease the torque according to his or her own preferences, thereby adjusting the damping feel of the whole machine opening and closing. And when the mechanical properties of the elastic member 23 decay after the folding device 1 has been used for a period of time, the adjusting member 80 can be used to readjust the torque of the folding device 1, thereby avoiding the replacement of the entire torque mechanism, reducing the difficulty and cost of maintenance.

[0068] Optionally, the folding device 1 may further include a fixing member 25 fixed to the rotating shaft 11, the fixing member 25 is fixed to the side of the blocking member 24 facing away from the elastic member 23, and the fixing member 25 is used to limit the blocking member 24, providing a backward end position for the blocking member 24 to prevent the blocking member 24 from falling off the rotating shaft 11.

[0069] Please refer to Figure 2 , Figures 5 - 7 , Figure 5 This is a three-dimensional structural view of an adjusting member in one embodiment of the present application. Figure 6 for Figure 5 A schematic diagram of the three-dimensional structure of the adjusting member shown in another perspective. Figure 7 for Figure 5 A top view of the adjusting portion in the adjusting member shown. In the present embodiment, the adjusting member 80 has a rotation center 810. Along the circumferential direction of the adjusting member 80, the adjusting member 80 includes a first abutting surface 811 and a second abutting surface 812. The first distance from the rotation center 810 to the first abutting surface 811 is smaller than the second distance from the rotation center 810 to the second abutting surface 812. When the adjusting member 80 rotates from the first abutting surface 811 abutting the blocking member 24 to the second abutting surface 812 abutting the blocking member 24, the blocking member 24 slides in a direction close to the second cam member 22, thereby reducing the length of the elastic member 23. When the adjusting member 80 rotates from the second abutting surface 812 abutting the blocking member 24 to the first abutting surface 811 abutting the blocking member 24, the blocking member 24 slides in a direction away from the second cam member 22, thereby increasing the length of the elastic member 23.

[0070] As can be seen from the above, the adjusting member 80 always abuts against the blocking member 24. Therefore, the outer surfaces of the two always abut against each other. For the blocking member 24, the abutting surface is always the surface of the blocking member 24 facing away from the elastic member 23, and this surface can be called the mating surface 240. However, since the adjusting member 80 rotates, the surface of the adjusting member 80 that abuts against the blocking member 24 in the circumferential direction of rotation is not fixed. In other words, different surfaces of the adjusting member 80 will abut against the blocking member 24 at different positions of the blocking member 24.

[0071] In this embodiment, the adjusting member 80 may include a first abutting surface 811 and a second abutting surface 812. These two abutting surfaces are parallel to the mating surface 240 of the blocking member 24, so that the adjusting member 80 can stably and statically cooperate with the blocking member 24, and keep the blocking member 24 and the adjusting member 80 fixed. The adjusting member 80 can rotate along the rotation center 810, and the rotation center 810 is located on the rotation axis of the adjusting member 80. Therefore, in this embodiment, the first distance from the rotation center 810 to the first abutting surface 811 (as Figure 7 shown by L1 in Figure 7 ) is less than the second distance from the rotation center 810 to the second abutting surface 812 (as shown by L2 in

[0072] ). In this way, when the adjusting member 80 rotates from the first abutting surface 811 abutting against the blocking member 24 to the second abutting surface 812 abutting against the blocking member 24, it is equivalent to the distance from the rotation center 810 of the adjusting member 80 to the blocking member 24 becoming farther. Therefore, the blocking member 24 will slide in the direction close to the second cam member 22, thereby reducing the length of the elastic member 23. Conversely, when the adjusting member 80 rotates from the second abutting surface 812 abutting against the blocking member 24 to the first abutting surface 811 abutting against the blocking member 24, it is equivalent to the distance from the rotation center 810 of the adjusting member 80 to the blocking member 24 becoming closer. The blocking member 24 will slide in the direction away from the second cam member 22, thereby increasing the length of the elastic member 23.

[0073] Please refer to Figures 8 - 10 together Figure 8 for the three-dimensional structural view of the adjusting member in another embodiment of the present application. Figure 9 is Figure 8 the three-dimensional structural schematic diagram of another perspective of the adjusting member shown. Figure 10 is Figure 8The top view of the adjusting portion of the adjusting member is shown. In this embodiment, the adjusting member 80 further includes a third abutting surface 813, and the third distance from the rotation center 810 to the third abutting surface 813 is greater than the second distance.

[0074] The aforementioned adjusting member 80 includes two surfaces parallel to the mating surface 240 in the circumferential direction, and the adjusting member 80 can be adjusted in two gears. On this basis, the adjusting member 80 can also include a third abutting surface 813 parallel to the surface of the blocking member 24 facing away from the elastic member 23 in the circumferential direction, and a third distance (such as Figure 10 In other words, the first distance is smaller than the second distance and smaller than the third distance. At this time, the adjusting member 80 can be adjusted in three gears, thereby achieving more damping changes. Of course, in other embodiments, the adjusting member 80 can also include more abutment surfaces for adjusting the blocking member 24, such as a fourth abutment surface, a fifth abutment surface, etc.

[0075] In this embodiment, the first abutting surface 811, the second abutting surface 812, and the third abutting surface 813 are arranged in sequence along the circumferential direction of the adjusting member 80. In other words, along the circumferential direction of the adjusting member 80, the distance from the rotation center 810 to the abutting surface for adjusting the blocking member 24 gradually increases or decreases. In this way, when the adjusting member 80 is rotated, the blocking member 24 can gradually slide in the direction close to the second cam member 22, or gradually slide in the direction away from the second cam member 22, thereby gradually reducing the length of the elastic member 23, or gradually increasing the length of the elastic member 23, so that the torque gradually increases or decreases. Avoid the irregular changes of the torque increasing, then suddenly decreasing, and then increasing, which increases the difficulty of adjustment.

[0076] In this embodiment, the adjusting member 80 further has an arc surface 814 bent and connected between the first abutting surface 811 and the second abutting surface 812 , and the arc surface 814 bulges in a direction away from the rotation center 810 .

[0077] In addition to the various abutting surfaces, the circumferential direction of the adjusting member 80 also includes an arcuate surface 814 that abuts against the matching surface 240 of the blocking member 24. In other words, when the adjusting member 80 switches different abutting surfaces to abut against the blocking member 24, it is the arcuate surface 814 of the adjusting member 80 that abuts against the blocking member 24. In this embodiment, the arcuate surface 814 can be raised in a direction away from the rotation center 810, so as to gradually control the sliding process of the blocking member 24 during the adjustment process and prevent the blocking member 24 from sliding in the clockwise direction.

[0078] In this embodiment, the distance from the rotation center 810 to the arc surface 814 gradually increases from the first abutting surface 811 to the second abutting surface 812. Alternatively, the distance from the rotation center 810 to the arc surface 814 remains unchanged and is greater than the second distance.

[0079] In the direction from the first abutting surface 811 to the second abutting surface 812, that is, the direction in which the distance from the rotation center 810 to the abutting surface increases, the distance from the rotation center 810 to the arc surface 814 gradually increases, so that the sliding of the blocking member 24 along the direction close to or away from the second cam member 22 can be gradually controlled. Or, the distance from the rotation center 810 to the arc surface 814 remains unchanged and is greater than the second distance, that is, the distance from the rotation center 810 to the arc surface 814 is always greater than the distance from the rotation center 810 to the farthest abutting surface, and the distance from the rotation center 810 to the arc surface 814 remains unchanged. At this time, the arc surface 814 is arc-shaped, which can simplify the structure of the adjusting member 80 and reduce the manufacturing difficulty of the adjusting member 80. This embodiment is only schematically described with the distance from the rotation center 810 to the arc surface 814 remaining unchanged and being greater than the second distance.

[0080] Please refer to again Figures 1 - 4 , in this embodiment, the rotating shaft 11, the rotating member 20', the second cam member 22, the elastic member 23, and the blocking member 24 form a torsion assembly 1c. The folding device 1 includes two torsion assemblies 1c. The two torsion assemblies 1c are arranged on opposite sides of the base 10, and the two blocking members 24 of the two torsion assemblies 1c are connected to each other. The adjusting member 80 abuts against the connection part of the two blocking members 24.

[0081] A rotating shaft 11, a rotating member 20', a second cam member 22, an elastic member 23, and a blocking member 24 can form a torsion assembly 1c. The folding device 1 of this embodiment can include two torsion assemblies 1c. The two torsion assemblies 1c can be arranged on the left and right sides of the base 10, so as to realize the folding and unfolding of the left and right sides of the folding device 1, and at the same time provide torsion for the left and right sides of the folding device 1. It can be known from this embodiment that the two blocking members 24 of the two torsion assemblies 1c are connected to each other, and the adjusting member 80 abuts against the connection part of the two blocking members 24. The connection part of the two blocking members 24 can be called the connection part 26, and the two blocking members 24 and the connection part 26 can be an integral structure.

[0082] In summary, in this embodiment, the adjusting member 80 abuts against the connection part of the two blocking members 24, and one adjusting member 80 can be used to control the blocking members 24 on both the left and right sides at the same time, simplifying the structure of the folding device 1.

[0083] Please refer to together Figures 1 - 4 、and Figure 11 , Figure 11Explosion diagram of the synchronization component, base, and blocking member in an embodiment of the present application. In this embodiment, the folding device 1 further includes a synchronization component 1d. The opposite ends of the synchronization component 1d are respectively rotatably connected to two rotating members 20' of the two torsion components 1c. One end of the synchronization component 1d is inserted into the connection part of the two blocking members 24. When the blocking member 24 slides in a direction away from the second cam member 22, one end of the synchronization component 1d remains inserted into the connection part of the two blocking members 24.

[0084] The folding device 1 may further include a synchronization component 1d. The opposite ends of the synchronization component 1d are respectively rotatably connected to two rotating members 20' of the two torsion components 1c. The synchronization component 1d can be used to realize the synchronous reverse movement of the two rotating members 20'. Optionally, the synchronization component 1d is arranged between the two rotating members 20'. The synchronization component 1d includes two gears 83. The circumferences of the two rotating members 20' are also provided with teeth, forming a four-gear 83 structure.

[0085] One end of the two gears 83 is provided with a convex shaft 84. The convex shaft 84 can be inserted into the connecting part 26 so that the two gears 83 can rotate. And in this embodiment, when the blocking member 24 slides in a direction away from the second cam member 22, the convex shaft 84 still remains inserted into the connecting part 26. The above content can also be understood as the depth of the cam inserted into the connecting part 26 is greater than the difference between the second distance and the first distance, so as to ensure that the gear 83 will not fall off. Optionally, the other end of the gear 83 is also provided with a convex shaft 84, and the convex shaft 84 can be inserted into the side end face of the base 10.

[0086] Please refer to Figure 6 and Figure 9 as well as Figures 12 - 16 , Figure 12 Schematic perspective view of the folding device in another embodiment of the present application. Figure 13 is Figure 12 the bottom view of the folding device shown in Figure 14 Schematic perspective view of the decorative member and the adjusting member in an embodiment of the present application when they are matched. Figure 15 is Figure 14 the explosion diagram of the decorative member and the adjusting member shown in Figure 16 is Figure 14 the bottom view of the decorative member and the adjusting member shown in . In this embodiment, the folding device 1 further includes a decorative member 71 for fixing the base 10. The decorative member 71 has a through hole 710. The adjusting member 80 includes an adjusting part 81 and a rotating shaft 82. The adjusting part 81 abuts against the blocking member 24. The rotating shaft 82 is inserted into the through hole 710 and the end face of the rotating shaft 82 is exposed, so that the adjusting member 80 is rotatably connected to the decorative member 71. The end face is provided with a first matching part 820. The first matching part 820 is used to cooperate with the second matching part of the auxiliary member, so that the auxiliary member can drive the adjusting member 80 to rotate relative to the decorative member 71.

[0087] In addition to the above components, the folding device 1 may further include a decorative member 71. The decorative member 71 is used to fix the rotation installation base 10. The decorative member 71 is disposed on the bottom surface 100 and the side surface of the base 10, and is used to protect and cover the base 10 and other components, so that users cannot observe the interior of the folding device 1. And the decorative member 71 can also cooperate with the shells on the left and right sides of the base 10 to jointly form the appearance surface of the electronic device 3. In this case, the adjusting member 80 can be rotatably connected to the decorative member 71 through a shaft hole so that the adjusting member 80 can rotate. Specifically, a through hole 710 can be formed on the decorative member 71. The adjusting member 80 includes an adjusting portion 81 and a rotating shaft 82. The adjusting portion 81 is the portion mentioned above for abutting against the blocking member 24, that is, the adjusting portion 81 includes the above-mentioned abutting surfaces and the arc surface 814. The rotating shaft 82 can be inserted into the through hole 710 so that the rotating shaft 82 can rotate in the through hole 710, thereby realizing the rotational connection of the adjusting member 80 to the decorative member 71.

[0088] In addition, in this embodiment, the end face of the rotating shaft 82 can be exposed in the through hole 710, and a first engaging portion 820 is formed on the end face. The first engaging portion 820 can cooperate with the second engaging portion of the auxiliary member, so that the adjusting member 80 rotates relative to the decorative member 71. For example, a hexagonal counterbore can be formed on the end face of the rotating shaft 82, and the user can use a corresponding tool such as a screwdriver to rotate the adjusting member 80, so that the adjusting member 80 rotates.

[0089] Optionally, a gear position mark 821 is further provided on the end face of the rotating shaft 82, which can indicate the current preloading state, that is, which abutting surface of the adjusting member 80 abuts against the blocking member 24.

[0090] In this embodiment, the folding device 1 provided in the above embodiment of the present application constitutes a half shaft assembly 1e. The folding device 1 includes at least two half shaft assemblies 1e, and the at least two half shaft assemblies 1e are arranged at intervals along the axial direction of the rotating shaft 11.

[0091] The base assembly 10', the rotating member 20', the second cam member 22, the elastic member 23, the blocking member 24, and the adjusting member 80 provided in the above folding device 1 of the present application can constitute a half shaft assembly 1e. The folding device 1 may include a plurality of half shaft assemblies 1e, and the plurality of half shaft assemblies 1e may be arranged at intervals along the axial direction of the rotating shaft 11, in other words, may be arranged along the extending direction of the support member 60. In this way, an adjusting member 80 is provided in each half shaft assembly 1e, and the adjusting member 80 includes at least two gears of adjustment. The plurality of half shaft assemblies 1e can achieve more gears of adjustment, and can provide more combination options for users.

[0092] Please refer to Figures 1 - 2 together with Figures 17 - 21 , Figure 17Schematic perspective view of the folding device in the unfolded state in an embodiment of the present application. Figure 18 is Figure 17 exploded view of the folding device shown. Figure 19 is Figure 17 front view of the folding device shown. Figure 20 Schematic perspective view of the folding device in the folded state in an embodiment of the present application. Figure 21 is Figure 20 front view of the folding device shown. The folding device 1 provided in this embodiment further includes two first rotating members 30, two second rotating members 40, two connecting members 50, and two supporting members 60. 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. One of the first rotating member 30 and the second rotating member 40 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. Each supporting member 60 is rotatably connected to a connecting member 50 and is slidably and rotatably connected to the other of the first rotating member 30 and the second rotating member 40. The rotating member 20' is at least one of the first rotating member 30 and the second rotating member 40.

[0093] The first rotating member 30, the second rotating member 40, and the connecting member 50 in the folding device 1 can be collectively referred to as the track mechanism 1b. The track mechanism 1b is mainly used to control the movement track of the supporting member 60, so as to control the cross-sectional shape of the flexible screen 93 in the subsequent folded state, ensuring better support for the flexible screen 93 without damaging the various layer structures in the flexible screen 93. Next, this embodiment will introduce the first rotating member 30, the second rotating member 40, the connecting member 50, and the supporting member 60 in sequence in detail.

[0094] The two first rotating members 30 in the folding device 1 mainly achieve the folding function through their rotating ability, and drive and limit the components connected to the two first rotating members 30 through the rotation of the two first rotating members 30, so that these components move along a predetermined movement trajectory. The two first rotating members 30 are rotatably connected to the base 10 in the base assembly 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. In other words, the ends of the two first rotating members 30 close to the base 10 are rotatably connected to the base 10. Since the base 10 is fixed, only the two first rotating members 30 rotate. 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. This embodiment does not limit the 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.

[0095] Optionally, the two first rotating members 30 are rotatably connected to the side surface of the base 10. Further optionally, in one embodiment, the two first rotating members 30 are axially symmetrically arranged with respect to the base 10. In another embodiment, the two first rotating members 30 are non-axially symmetrically arranged with respect to the base 10. In other words, the two first rotating members 30 have a partially overlapping area in the length direction of the folding device 1. This embodiment only makes a schematic description with the two first rotating members 30 being axially symmetrically arranged with respect to the base 10.

[0096] The second rotating member 40 has the same function as the first rotating member 30. In the folding device 1, it mainly achieves the folding function through its rotating ability, and drives and limits the components connected to the two second rotating members 40 through the rotation of the two second rotating members 40, so that these components move along a predetermined movement 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 and the two first rotating members 30 are arranged at intervals along the length direction of the base 10. This can not only simplify the structure of the folding device 1, but also enable the second rotating member 40 and the first rotating member 30 to be better rotatably connected to the base 10. In other words, the ends of the two second rotating members 40 close to the base 10 are rotatably connected to the base 10. Since the base 10 is fixed, only the two second rotating members 40 rotate. 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.

[0097] Optionally, two second rotating members 40 are rotatably connected to the side surface of the base 10. Optionally, in one embodiment, the two second rotating members 40 are axially symmetrically arranged with respect to the base 10, and in another embodiment, the two second rotating members 40 are non-axially symmetrically arranged with respect to the base 10. In other words, the two second rotating members 40 have a partially overlapping area in the length direction of the folding device 1. This embodiment only schematically illustrates the case where the two second rotating members 40 are axially symmetrically arranged with respect to the base 10.

[0098] The connecting member 50 mainly functions to connect various components in the folding device 1. 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. That is, each first rotating member 30 is rotatably connected to a connecting member 50, and the side of each first rotating member 30 away from the base 10 is rotatably connected to the connecting member 50. 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, the side of each second rotating member 40 away from the base 10 is slidably connected to the connecting member 50. It can also be understood that the second rotating member 40 can slide relative to the connecting member 50. Alternatively, each first rotating member 30 is slidably connected to the connecting member 50, and each second rotating member 40 is rotatably connected 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 are fixed together. In this way, when the housing rotates, the connecting member 50 can also be driven to rotate together. This embodiment does not limit parameters such as the shape, structure, and material of the connecting member 50, as long as the connecting member 50 can rotatably connect one rotating member 20' and slidably connect the other rotating member 20'. This embodiment only schematically illustrates the case where each first rotating member 30 is rotatably connected to a connecting member 50, and each second rotating member 40 is slidably connected to a connecting member 50.

[0099] The support member 60 is mainly used to support the flexible screen 93 when the folding device 1 is subsequently applied to the electronic device 3, so as to control the folding form of the flexible screen 93. Therefore, the support member 60 can also be called an inclined plate. Similarly, the bearing member 70 can also be called a middle plate. The folding device 1 can include two inclined plates and one middle plate. Therefore, the folding device 1 can also be called a three-plate structure. Optionally, the flexible screen 93 can be bonded to the support member 60 by means of glue or the like, so that the shape of the flexible screen 93 is more natural during the bending process, the stress after bending is small, and the damage to the flexible screen 93 is reduced. Each support member 60 is disposed on a connecting member 50. Specifically, the support member 60 is rotatably connected to the connecting member 50, that is, the support member 60 can rotate relative to the connecting member 50, and the support member 60 slidably and rotatably connects to the other one of the first rotating member 30 and the second rotating member 40. In other words, the support member 60 can rotate relative to the other one of the first rotating member 30 and the second rotating member 40, and the support member 60 can also slide relative to the other one of the first rotating member 30 and the second rotating member 40. In this embodiment, only the case where the support member 60 slidably and rotatably connects to the second rotating member 40 is schematically illustrated.

[0100] In the folding device 1 provided in this embodiment, the first rotating member 30, the second rotating member 40, the connecting member 50, and the support member 60 on one side of the base 10 can be regarded as the left module, and the first rotating member 30, the second rotating member 40, the connecting member 50, and the support member 60 on the other side of the base 10 can be regarded as the right module. The left module and the right module can be symmetrically designed or asymmetrically designed.

[0101] The folding device 1 provided in this embodiment can form a trajectory mechanism 1b with the base 10, two first rotating members 30, two second rotating members 40, and two connecting members 50. In one embodiment, the folding device 1 includes a trajectory mechanism 1b, and this trajectory mechanism 1b is disposed on one side of the support member 60. In another embodiment, the folding device 1 includes two trajectory mechanisms 1b. The two trajectory mechanisms 1b are disposed on one side of the support member 60, and the two trajectory mechanisms 1b are arranged along the extending direction of the support member 60. At this time, the support member 60 is rotatably connected to two connecting members 50, and at the same time, slidably and rotatably connects to two second rotating members 40. In other embodiments, the folding device 1 includes three or more trajectory mechanisms 1b. The three or more trajectory mechanisms 1b are disposed on one side of the support member 60, and the three or more trajectory mechanisms 1b are arranged along the extending direction of the support member 60. At this time, the support member 60 is rotatably connected to three or more connecting members 50, and at the same time, slidably and rotatably connects to three or more second rotating members 40. In this embodiment, only the case where the folding device 1 includes three trajectory mechanisms 1b and two support members 60 is schematically illustrated. Of course, the solutions of two trajectory mechanisms 1b and one trajectory mechanism 1b should also fall within the protection scope of this application.

[0102] The rotation mentioned above can be understood as that two components can perform circular motion around the rotation axis, with only angular changes and no displacement changes. Sliding can be understood as the parallel movement of two components, with only displacement changes and no angular changes. And the fact that two components can both slide and rotate means that there are both displacement changes and angular changes for the two components. At this time, this kind of sliding and rotation can also be called rolling. Therefore, the relationship between the support member 60 and the second rotating member 40 can also be called that the support member 60 is roll-connected to the second rotating member 40.

[0103] Based on the above connection relationship, it can be known that the folding device 1 provided in this embodiment is composed of 6 kinematic pairs on one side. Specifically, the first rotating member 30 and the base 10 cooperate to form a rotating pair, the first rotating member 30 and the connecting member 50 cooperate to form a rotating pair, the second rotating member 40 and the base 10 cooperate to form a rotating pair, the second rotating member 40 and the connecting member 50 cooperate to form a sliding pair, the support member 60 and the second rotating member 40 cooperate to form a rolling pair, and the support member 60 and the connecting member 50 cooperate to form a rotating pair. Therefore, the total degrees of freedom of the components on one side cooperating together is 3*4 (there are 4 components on one side, such as 1 first rotating member 30, 1 second rotating member 40, 1 connecting member 50, 1 support member 60) - 2*5 (there are 5 lower pairs on one side, such as 1 sliding pair and 4 rotating pairs) - 1*1 (there is 1 higher pair on one side, such as 1 rolling pair) = 1.

[0104] Therefore, when the folding device 1 moves, the movement trajectories and movement routes of each component are unique. Specifically, when the folding device 1 folds, 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 second rotating member 40 also slides relative to the connecting member 50, the second rotating member 40 also slides and rotates relative to the support member 60, and the support member 60 also rotates relative to the connecting member 50, finally causing the two support members 60 to fold together. When the folding device 1 unfolds, 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 second rotating member 40 also slides relative to the connecting member 50, the second rotating member 40 also slides and rotates relative to the support member 60, and the support member 60 also rotates relative to the connecting member 50, finally causing the two support members 60 to unfold.

[0105] The movement process of the folding device 1 mentioned above has various active and driven logical relationships. In this application, one specific movement process is taken as an example for illustration. When the folding device 1 folds, that is, during the process of the folding device 1 changing from the unfolded state to the folded state, in other words, when the two connecting pieces 50 rotate relative to the base 10 and approach each other, since the first rotating piece 30 and the second rotating piece 40 are both rotatably connected to the base 10, the connecting piece 50 can drive the first rotating piece 30 and the second rotating piece 40 to also rotate relative to the base 10. And during the rotation of the first rotating piece 30 and the second rotating piece 40, the second rotating piece 40 can also slide relative to the connecting piece 50, that is, the connecting piece 50 can slide along the second rotating piece 40, thereby changing the distance between the connecting piece 50 and the base 10. When the connecting piece 50 slides, since the support piece 60 is arranged on the connecting piece 50, the connecting piece 50 can drive the support piece 60 to slide together. When the support piece 60 slides, the second rotating piece 40 can also slide and rotate relative to the support piece 60, and further drive the support piece 60 to rotate relative to the connecting piece 50. Of course, in other embodiments, during the sliding and rotating process of the second rotating piece 40, the support piece 60 may not rotate relative to the connecting piece 50, that is, the support piece 60 and the connecting piece 50 remain stationary, and finally the two support pieces 60 can be folded with each other.

[0106] Similarly, when the folding device 1 unfolds, that is, during the process of the folding device 1 changing from the folded state to the unfolded state, in other words, when the two connecting pieces 50 rotate in the opposite direction relative to the base 10 and move away from each other, since the first rotating piece 30 and the second rotating piece 40 are both rotatably connected to the base 10, the connecting piece 50 can drive the first rotating piece 30 and the second rotating piece 40 to also rotate relative to the base 10. And during the rotation of the first rotating piece 30 and the second rotating piece 40, the second rotating piece 40 can also slide relative to the connecting piece 50, that is, the connecting piece 50 can slide along the second rotating piece 40, thereby changing the distance between the connecting piece 50 and the base 10. When the connecting piece 50 slides, since the support piece 60 is arranged on the connecting piece 50, the connecting piece 50 can drive the support piece 60 to slide together. When the support piece 60 slides, the second rotating piece 40 can also slide and rotate relative to the support piece 60, and further drive the support piece 60 to rotate relative to the connecting piece 50. Of course, in other embodiments, during the sliding and rotating process of the second rotating piece 40, the support piece 60 may not rotate relative to the connecting piece 50, that is, the support piece 60 and the connecting piece 50 remain stationary, and finally the two support pieces 60 can be unfolded with each other.

[0107] In other embodiments, the active and passive relationships of the above-mentioned multiple components can be reversed. For example, it can also be that the support piece 60 rotates relative to the base 10, and then drives the first rotating piece 30, the second rotating piece 40, and the connecting piece 50 to rotate relative to the base 10. Such movement processes and principles should also fall within the protection scope of this application.

[0108] As Figure 19 shown, when the two support members 60 are parallel to each other and the two support members 60 are located on opposite sides of the base 10, the two support members 60 are in a fully unfolded state with respect to each other. In other words, the folding device 1 is in an unfolded state. As Figure 21 shown, when the two support members 60 are both located on one side of the base 10, it can also be understood that the two support members 60 are both located on the top surface of the base 10. At this time, the two support members 60 are in a fully folded state with respect to each other. In other words, the folding device 1 is in a folded state. When the two support members 60 are folded with respect to each other, that is, during the process of the folding device 1 changing from the unfolded state to the folded state, it can also be understood as a process from Figures 19 - 21 ... When the two support members 60 are unfolded with respect to each other, that is, during the process of the folding device 1 changing from the folded state to the unfolded state, it can also be understood as a process from Figures 21 - 19 ...

[0109] When the folding device 1 is in the folded state, the two support members 60 and the base 10 jointly enclose a screen accommodating space 1a for accommodating the flexible screen 93. The folding device 1 provided in this embodiment can make the cross-sectional shape of the screen accommodating space 1a be U-shaped or water droplet-shaped. When the cross-sectional shape of the screen accommodating space 1a is U-shaped, the distance between the two support members 60 at the end far from the base 10 is equal to the distance between the two support members 60 at the end close to the base 10. At this time, the structure of the folding device 1 is simple and the reliability of the whole machine is high. When the cross-sectional shape of the screen accommodating space 1a is water droplet-shaped, the distance between the two support members 60 at the end far from the base 10 is less than the distance between the two support members 60 at the end close to the base 10. At this time, the whole machine of the folding device 1 is thinner and flatter after folding. This embodiment only schematically illustrates the case where the cross-sectional shape of the screen accommodating space 1a is water droplet-shaped.

[0110] In addition, the rotating member 20' includes at least one of the first rotating member 30 and the second rotating member 40. That is, the first rotating member 30 can be the rotating member 20' mentioned above to cooperate with the sliding assembly, or the second rotating member 40 can be the rotating member 20' mentioned above to cooperate with the sliding assembly, or both the first rotating member 30 and the second rotating member 40 can be the rotating member 20' mentioned above to cooperate with the sliding assembly. In other words, the rotating member 20' mentioned above is a component among the first rotating member 30 and the second rotating member 40, but different names are given artificially. This embodiment only schematically illustrates the case where the rotating member 20' is the second rotating member 40. In other embodiments, the rotating member 20' can also cooperate with the first rotating member 30.

[0111] The present application will next introduce in detail the components that cooperate with each other in pairs. Since the number of most components is two, this embodiment only takes, for example, Figure 2 and Figure 18A schematic illustration is given for the components on the right side of the base 10 in the folding device 1 shown. The components on the left side of the base 10 can be understood in the same way.

[0112] Please refer to Figure 22 , Figure 22 which is a schematic diagram showing the cooperation of the base, the first rotating member, the second rotating member and the connecting member in an embodiment of the present application. In this embodiment, the first rotation axis C1 between the first rotating member 30 and the base 10 and the second rotation axis C2 between the second rotating member 40 and the base 10 are parallel to each other. The first rotation axis C1 is farther from the bottom surface 100 of the base 10 than the second rotation axis C2, and when the folding device 1 is in the unfolded state, the first rotation axis C1 is farther from the connecting member 50 than the second rotation axis C2. In other words, the first rotation axis C1 is above and more to the left than the second rotation axis C2. Therefore, in Figure 22 , the first rotation axis C1 is located in the upper left and the second rotation axis C2 is located in the lower right. The movement form of the first rotating member 30 is rotation, which determines the position of the connecting member 50 during the movement process. The movement form of the second rotating member 40 is rotation and sliding, which determines the angle of the connecting member 50 during the movement process. The position and angle of the connecting member 50 are determined by the mutual cooperation of the first rotating member 30 and the second rotating member 40.

[0113] Specifically, when the first rotating member 30 and the second rotating member 40 rotate, on the basis of making the connecting member 50 slide relative to the second rotating member 40, the connecting member 50 can slide away from the base 10 when the folding device 1 folds. When the folding device 1 unfolds, the connecting member 50 slides towards the base 10. This can further make the support member 60 move along a preset trajectory, so that when the folding device 1 is in the folded state, the folding device 1 forms a water-drop-shaped screen-containing space 1a. In this way, whether the folding device 1 folds or unfolds, when the connecting member 50 rotates relative to the base 10, it drives the first rotating member 30 and the second rotating member 40 to also rotate relative to the base 10, so that the connecting member 50 slides relative to the second rotating member 40, thereby changing the distance between the connecting member 50 and the base 10, and driving the support member 60 rotatably connected to the connecting member 50 to also slide relative to the second rotating member 40, changing the distance between the support member 60 and the base 10, and further realizing the subsequent movement process. In summary, in this embodiment, no new components need to be added, and only by designing the positions of the first rotation axis C1 and the second rotation axis C2 can the sliding of the connecting member 50 relative to the second rotating member 40 be realized.

[0114] In this embodiment, the first rotating member 30 and the base 10 are connected by the cooperation of a first arc rail and a first arc groove. The first arc rail is provided on one of the first rotating member 30 and the base 10, and the first arc groove is provided on one of the first rotating member 30 and the base 10. For example, when the first arc rail is provided on the first rotating member 30, the first arc groove is provided on the base 10. When the first arc groove is provided on the first rotating member 30, the first arc rail is provided on the base 10. This embodiment is only illustrated by taking the first arc rail provided on the first rotating member 30 and the first arc groove provided on the base 10 as an example. Specifically, a block in a circular arc shape is provided on the side of the first rotating member 30 close to the base 10, and this block is the first arc rail. A protrusion is provided on the base 10, and a circular arc-shaped groove body is provided in the protrusion, and this groove body is the first arc groove. The first arc rail is provided in the first arc groove, and the axis of the first arc groove is collinear with the axis of the first 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 rotationally connected together through an arc-shaped slide rail and an arc-shaped slide groove.

[0115] As for the dimensions and radian of the first arc groove and the first arc rail, they can be designed according to the position of the rotation axis between the first rotating member 30 and the base 10. By adopting the design method of the first arc groove and the first arc rail, the position of the rotation axis can be inside the base 10 or outside the base 10. By adjusting the dimensions and radian of the first arc groove and the first arc rail, the position of the rotation axis can be better designed, so as to realize the positional relationship between the above-mentioned rotation axes. Of course, in other embodiments, the first arc groove can also be provided on the first rotating member 30, and the first arc rail can be provided on the base 10.

[0116] In summary, in this embodiment, by adopting the rotational connection scheme of the first arc groove and the first arc rail, the position of the rotation axis can be better adjusted, and the purpose that the rotation axes are parallel to each other can be realized, so that the first rotation axis C1 and the second rotation axis C2 satisfy the above-mentioned positional relationship. In addition, the matching form of the first arc groove and the first arc rail enables the distance from the end of the first rotating member 30 away from the base 10 to the base 10 to be changed when the first rotating member 30 rotates relative to the base 10, so as to adjust the distance between the first rotating member 30 and the base 10, and further realize the purpose of controlling the sliding of the support member 60 relative to the base 10.

[0117] In this embodiment, the second rotating member 40 and the base 10 are connected by fitting the first rotating shaft with the first rotating hole. The first rotating shaft is provided on one of the second rotating member 40 and the base 10, and the first rotating hole is provided on 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 fitting the first rotating shaft with the first rotating hole. The first rotating shaft is provided on one of the second rotating member 40 and the base 10, and the first rotating hole is provided on the other of the second rotating member 40 and the base 10. For example, when the first rotating shaft is provided on the second rotating member 40, the first rotating hole is provided on the base 10. When the first rotating hole is provided on the second rotating member 40, the first rotating shaft is provided on the base 10. This embodiment is only schematically described with the first rotating shaft provided on the base 10 and the first rotating hole provided on the second rotating member 40. Optionally, the first rotating shaft includes but is not limited to the rotating shaft 82 mentioned above.

[0118] As can be seen from the above, since the first rotating member 30 and the base 10 can be fitted with each other through the first arc groove and the first arc rail, the position of the rotation axis between the first rotating member 30 and the base 10 can be changed by designing the radian and size of the first arc groove and the first arc rail. 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 need to be fitted with each other, thus simplifying the structure of the folding device 1.

[0119] In this embodiment, the first rotating member 30 and the connecting member 50 are connected by fitting the second rotating shaft with the second rotating hole. The second rotating shaft is provided on one of the first rotating member 30 and the connecting member 50, and the second rotating hole is provided on the other of the first rotating member 30 and the connecting member 50. Since the first rotating member 30 is rotatably connected to the connecting member 50, in this embodiment, the first rotating member 30 and the connecting member 50 can be connected by fitting the second rotating shaft with the second rotating hole. The second rotating shaft is provided on one of the first rotating member 30 and the connecting member 50, and the second rotating hole is provided on the other of the first rotating member 30 and the connecting member 50. For example, when the second rotating shaft is provided on the first rotating member 30, the second rotating hole is provided on the connecting member 50. When the second rotating hole is provided on the first rotating member 30, the second rotating shaft is provided on the connecting member 50. This embodiment is only schematically described with the second rotating shaft provided on the connecting member 50 and the second rotating hole provided on the first rotating member 30. Optionally, the second rotating shaft includes but is not limited to a pin.

[0120] As can be seen from the above, when the connecting member 50 rotates relative to the base 10, driving the first rotating member 30 and the second rotating member 40 to also 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 be changed, and the distance between the connecting member 50 and the first rotating member 30 will also be changed. 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, thereby compensating for the distance during the sliding of the connecting member 50 and ensuring the smooth movement of the folding device 1.

[0121] Please refer to Figure 2 and Figure 23 , Figure 23 is an exploded view of the base, the second rotating member, and the connecting member in an embodiment of the present application. In this embodiment, the second rotating member 40 and the connecting member 50 are connected by cooperation of a sliding block 42 and a sliding groove 52. The sliding block 42 is provided on one of the second rotating member 40 and the connecting member 50, and the sliding groove 52 is provided on the other of the second rotating member 40 and the connecting member 50. The connecting member 50 has a back surface 500 facing away from the flexible screen 93. The distance between the sliding block 42 and the back surface 500 at the end close to the base 10 is less than the distance between the sliding block 42 and the back surface 500 at the end far from the base 10.

[0122] The sliding block 42 is not horizontally arranged but is inclined, and the farther the sliding block 42 is from the base 10, the greater the distance between the sliding block 42 and the back surface 500. Since the sliding block 42 is inclined, the sliding groove 52 is also inclined to match the sliding block 42, and the distance between the sliding groove 52 and the back surface 500 at the end close to the base 10 is less than the distance between the sliding groove 52 and the back surface 500 at the end far from the base 10. When the folding device 1 moves 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 sliding block 42 and the sliding groove 52, not only can the support member 60 be further made to move along a preset trajectory, so that when the folding device 1 is in the folded state, the folding device 1 forms a water-drop-shaped screen-containing space 1a. 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 overall thickness of the folding device 1 in the folded state can be reduced. The opposite ends of the flexible screen 93 can also be made to abut against each other, thereby eliminating the gap between the two ends of the flexible screen 93 in the folded state, improving the safety performance of the flexible screen 93, and improving the appearance effect.

[0123] Please refer to Figures 24 - 26, Figure 24 It is a schematic diagram of the exploded view of the second rotating member and part of the supporting member in one embodiment of the present application. Figure 25 It is a cross-sectional schematic diagram of the base, the second rotating member, and the supporting member when the folding device is in an unfolded state in one embodiment of the present application. Figure 26 The cross-sectional schematic diagram of the base, the second rotating member, and the supporting member when the folding device is in the folded state in one embodiment of the present application. In this embodiment, the supporting member 60 includes a supporting portion 61 and a rolling portion 62. The supporting portion 61 has a supporting surface 610 for supporting the flexible screen 93. The rolling portion 62 is arranged on the side of the supporting portion 61 away from the supporting surface 610. The second rotating member 40 and the rolling portion 62 are connected by a first rolling shaft 43 and a first rolling groove 620. The first rolling shaft 43 is arranged on one of the second rotating member 40 and the rolling portion 62, and the first rolling groove 620 is arranged on the other of the second rotating member 40 and the rolling portion 62. The first rolling groove 620 has a first limiting end 621 and a second limiting end 622 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 supporting surface 610 than the second limiting end 622. When the folding device 1 is in the unfolded state, the first rolling shaft 43 is positioned at the first limit end 621 , and when the folding device 1 is in the folded state, the first rolling shaft 43 is positioned at the second limit end 622 .

[0124] The first limit end 621 is farther from the base 10 than the second limit end 622, and the first limit end 621 is farther from the support surface 610 than the second limit end 622. In other words, the first limit end 621 is further to the right and lower than the second limit end 622, that is, the first limit end 621 is located at the lower right position, and the second limit end 622 is located at the upper left position. During the movement of the folding device 1, when the folding device 1 is in the unfolded state, the first rolling axis 43 is positioned at the first limit end 621 to prevent the support member 60 from folding back and damaging the subsequent flexible screen 93. When the folding device 1 is in the folded state, the first rolling axis 43 is positioned at the second limit end 622 to prevent the support member 60 from folding back and damaging the subsequent flexible screen 93. It can also be understood that when the folding device 1 is in the unfolded state, the first rolling axis 43 is located at the lower right, and when the folding device 1 is in the folded state, the first rolling axis 43 is located at the upper left.

[0125] The first rolling groove 620 further has a first communication portion 623 connecting the first limiting end 621 and the second limiting end 622. The first communication portion 623 protrudes away from the support surface 610. This can not only control the position of the first rolling shaft 43 within the first rolling groove 620 during the entire movement process, thereby controlling the positional relationship between the rotation axis between the support member 60 and the connecting member 50 and the first rolling shaft 43, so that the support member 60 rotates to form a water droplet shape in the folded state. And the arc-shaped first rolling groove 620 can also make the rolling of the first rolling shaft 43 smoother, improving the smoothness and stability of the movement of the folding device 1. Of course, in other embodiments, the shape of the first communication portion 623 can also be linear 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.

[0126] The first rolling groove 620 further has a second communication portion 624 connecting the first communication portion 623 and the first limiting end 621. The extending direction of the second communication portion 624 is parallel to the support surface 610. During the process of the folding device 1 transitioning from the unfolded state to the folded state, the first rolling shaft 43 does not directly move from the first limiting end 621 to the second communication portion 624, but first moves to the second communication portion 624 and then moves to the first communication portion 623. This can enable the horizontal second communication portion 624 to support the first rolling shaft 43 when the folding device 1 is in the unfolded state, achieving buffering by using the second communication portion 624 to prevent the first rolling shaft 43 from moving into the arc-shaped first communication portion 623 by itself, improving the stability of the folding device 1. And the horizontally arranged second communication portion 624 can also reduce the gap between the first rolling shaft 43 and the first rolling groove 620, preventing the existence of play.

[0127] In this embodiment, the support member 60 and the connecting member 50 are connected by cooperation of a third arc rail and a third arc groove. The third arc rail is provided on one of the support member 60 and the connecting member 50, and the third arc groove is provided on the other of the support member 60 and the connecting member 50. Since the support member 60 is rotatably connected to the connecting member 50, in this embodiment, the support member 60 and the connecting member 50 can be connected by cooperation of a third arc rail and a third arc groove. The third arc rail is provided on one of the support member 60 and the connecting member 50, and the third arc groove is provided on the other of the support member 60 and the connecting member 50. For example, when the third arc rail is provided on the support member 60, the third arc groove is provided on the connecting member 50. When the third arc groove is provided on the support member 60, the third arc rail is provided on the connecting member 50. This embodiment only makes a schematic illustration with the third arc groove provided on the support member 60 and the third arc rail provided on the connecting member 50.

[0128] Specifically, the support member 60 includes a support portion 61 and a rotating portion, wherein the support portion 61 is used to support the flexible screen 93 when the folding device 1 is applied to the electronic device 3. Therefore, the support portion 61 has a support surface 610 for supporting the flexible screen 93, that is, the upper surface of the support portion 61 is the support surface 610. The rotating portion is arranged on the side of the support portion 61 away from the support surface 610, that is, the rotating portion is farther away from the flexible screen 93 than the support portion 61. A circular arc groove is provided on the side of the rotating portion close to the connecting member 50, and the groove is the third circular arc groove. A circular arc block is provided on the side of the connecting member 50 close to the rotating portion, and the block is the third circular arc rail. The third circular arc rail can be arranged in the third circular arc groove, and the axis of the third circular arc groove is colinear with the axis of the third circular arc rail, so that the rotating portion of the support member 60 can rotate relative to the connecting member 50. As for the size and curvature of the third circular arc groove and the third circular arc rail, they can be designed according to the position of the rotation axis between the support member 60 and the connecting member 50. In addition, it can be known from the above content that in this embodiment, the support member 60 can be rotated relative to the connecting member 50 by changing the position between the rotation axis and the rolling axis between the support member 60 and the connecting member 50. Therefore, the design of the circular arc groove and the circular arc track can make the position of the rotation axis inside the connecting member 50 or outside the connecting member 50, and the position and shape of the rolling axis and the rolling groove can be better designed by adjusting the size and curvature of the third circular arc groove and the third circular arc track, so that the support member 60 can be rotated relative to the connecting member 50. Of course, in other embodiments, the third circular arc track can also be provided on the support member 60, and the third circular arc groove can also be provided on the connecting member 50.

[0129] Optionally, in one embodiment, the connecting member 50 may have a third circular arc track, which is disposed on one side of the connecting member 50. Correspondingly, the supporting member 60 has a rotating portion and a third circular arc groove. In another embodiment, the connecting member 50 may have two third circular arc tracks, which are disposed on opposite sides of the connecting member 50. Correspondingly, the supporting member 60 has two rotating portions and a third circular arc groove. This embodiment is only schematically described by taking the connecting member 50 having two third circular arc tracks and the supporting member 60 having two third circular arc grooves.

[0130] In this embodiment, the connecting member 50 and the supporting member 60 are connected by the cooperation of a restraint shaft and a restraint hole. The restraint shaft is provided on one of the connecting member 50 and the supporting member 60, and the restraint hole is provided on the other of the connecting member 50 and the supporting member 60. When the restraint shaft is provided on the connecting member 50, the restraint hole is provided on the supporting member 60, and when the restraint hole is provided on the connecting member 50, the restraint shaft is provided on the supporting member 60. This embodiment only makes a schematic illustration with the restraint shaft provided on the connecting member 50 and the restraint hole provided on the supporting member 60. Specifically, a cylindrical column protrudes from the end of the connecting member 50, and this column is the restraint shaft. The supporting member 60 includes a supporting portion 61 and a restraint portion fixed to the side of the supporting portion 61 away from the supporting surface 610. A groove is provided on the side of the restraint portion facing the restraint shaft, and this groove is the restraint groove. The restraint shaft can be inserted into the restraint groove so that the connecting member 50 and the supporting member 60 achieve restraint cooperation. Of course, in other embodiments, the restraint shaft can also be provided on the supporting member 60, and the restraint hole can also be provided on the connecting member 50.

[0131] The restraint shaft and the restraint hole can cooperate with each other to prevent the folding device 1 from having a movement deviation during movement, which may cause the supporting member 60 to rotate and warp excessively relative to the first rotating member 30, and subsequently affect the crease of the flexible screen 93. In other words, in this embodiment, a virtual restraint is added between the first rotating member 30 and the second rotating member 40 to limit the movement trajectory of the inclined plate, but the restraint shaft and the restraint hole do not affect the degree of freedom of the folding device 1.

[0132] In summary, the folding device 1 provided in this embodiment can finally control the movement trajectory of the supporting member 60 through the mutual cooperation of the first rotating member 30, the second rotating member 40, and the connecting member 50, so as to obtain a flexible screen space 1a with the shape required by the user.

[0133] Please also refer to Figures 27 - 28 , Figure 27 which is a schematic three-dimensional structure diagram of the housing assembly in the unfolded state in an embodiment of the present application. Figure 28 which is a schematic three-dimensional structure diagram of the housing assembly in the folded state in an embodiment of the present application. The housing assembly 2 provided in this embodiment includes a first housing 91, a second housing 92, and the folding device 1 provided in the above embodiment of the present application. The folding device 1 is connected between the first housing 91 and the second housing 92.

[0134] 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 91 and the second housing 92 are mainly used to install and carry components. For example, a flexible screen 93 can be carried on the first housing 91 and the second housing 92, and function modules such as a battery, a PCB assembly, a speaker, a receiver, and a button can be arranged in the first housing 91 and the second housing 92. Therefore, the first housing 91 and the second housing 92 mainly play roles such as installation and protection. In some embodiments, the surfaces of the first housing 91 and the second housing 92 can also serve as the appearance surfaces. Therefore, the surfaces of the first housing 91 and the second housing 92 can be correspondingly designed to make the first housing 91 and the second housing 92 have a unique external effect. This embodiment does not limit parameters such as the shape, material, and structure of the first housing 91 and the second housing 92, as long as they can achieve the functions of installation and protection. For example, the materials of the first housing 91 and the second housing 92 can all be metal, or all be plastic, or part be metal and part be plastic.

[0135] One connecting member 50 of the folding device 1 is connected to the first housing 91, and the other connecting member 50 is connected to the second housing 92. Thus, when the first housing 91 and the second housing 92 rotate, the two connecting members 50 are driven to rotate relative to the base 10, and then the subsequent movement process is realized. For example, the movements of the first rotating member 30, the second rotating member 40, and the supporting member 60, as well as the relative movement between the first moving member and the second moving member, provide damping for the movement of the housing assembly 2. Optionally, the housing and the connecting member 50 can be fixed by means of screws, snaps, or dispensing.

[0136] The housing assembly 2 provided in this embodiment can adjust the torsion by adopting the folding device 1 provided in the above embodiment of the present application, so as to adjust the opening and closing feel of the whole machine.

[0137] Please refer to Figures 29 - 30 , Figure 29 which is a schematic three-dimensional structure diagram of the electronic device in the unfolded state in an embodiment of the present application. Figure 30 which is a schematic three-dimensional structure diagram of the electronic device in the folded state in an embodiment of the present application. The electronic device 3 provided in this embodiment includes a flexible screen 93 and the housing assembly 2 provided in the above embodiment of the present application. The flexible screen 93 is arranged on the same side of the first housing 91, the second housing 92, and the folding device 1.

[0138] The electronic device 3 provided in this embodiment includes, but is not limited to, mobile terminals such as mobile phones, tablet computers, laptop computers, palmtop computers, personal computers (PCs), personal digital assistants (PDAs), portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., and fixed terminals such as digital TVs and desktop computers. Only a mobile phone is taken as an example for illustrative description.

[0139] The electronic device 3 includes a flexible screen 93 and a housing assembly 2. The flexible screen 93 is a component with a certain degree of flexibility. Compared with rigid components, the flexible screen 93 can be bent to a certain extent. For example, the flexible screen 93 includes, but is not limited to, various flexible components with corresponding functions such as flexible display screens, flexible touch screens, and flexible touch display screens, or is a flexible component fixedly attached with a flexible support plate, such as a flexible display screen and a flexible touch screen attached with a flexible steel plate. The flexible screen 93 is disposed on the same side of the first housing 91 and the second housing 92 in the housing assembly 2, and can be bent or flattened along with the housing assembly 2. Specifically, the flexible screen 93 has a bending area 930 and non-bending areas 931 disposed on opposite sides of the bending area 930. Among them, the bending area 930 of the flexible screen 93 is correspondingly attached to the middle plate of the folding device 1, and the non-bending areas 931 are correspondingly fixed to the first housing 91 and the second housing 92. Since the flexible screen 93 in the bending area 930 is correspondingly attached to the middle plate of the folding device 1, the shape of the folding device 1 will change when it moves, so it can drive the flexible screen 93 in the bending area 930 to bend as well, thereby bending or flattening along with the movement of the electronic device 3. Since the non-bending areas 931 are fixed to the first housing 91 and the second housing 92, only the first housing 91 and the second housing 92 rotate relative to each other, and their shapes do not change themselves. Therefore, even if the first housing 91 and the second housing 92 rotate, the flexible screen 93 on the first housing 91 and the second housing 92 does not bend.

[0140] The electronic device 3 provided in this embodiment can adjust the torque by adopting the housing assembly 2 provided in the above embodiment of the present application, so as to adjust the opening and closing feel of the whole machine.

[0141] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0142] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "plurality" is two or more, unless otherwise specifically defined. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0143] In the present application, unless otherwise clearly specified and limited, terms such as "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a connection, a detachable connection, or integrated. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0144] The above has introduced in detail the content provided by the embodiments of the present application, and has elaborated and explained the principles and embodiments of the present application. These explanations are only for helping to understand the method and its core idea of the present application. However, the content of this specification should not be construed as a limitation to the present application. Those skilled in the art can 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 equivalent technologies.

Claims

1. A folding device, characterized in that, Comprising: A base assembly, including a base and a rotating shaft disposed on the base, the axial direction of the rotating shaft being the sliding direction; A rotating member, rotatably connected to the base, and a first cam member is provided on an end side of the rotating member along the sliding direction; A second cam member, sleeved on the rotating shaft and capable of cooperating with the first cam member, so that when the rotating member rotates relative to the base, the second cam member can slide along the sliding direction; An elastic member, sleeved on the rotating shaft and having one end abutted against a side of the second cam member away from the first cam member; A blocking member, sleeved on the rotating shaft and abutted against the other end of the elastic member, and the blocking member can slide along the sliding direction; And An adjusting member, abutted against a side of the blocking member away from the elastic member and capable of rotating relative to the blocking member, so that the blocking member slides along the sliding direction, thereby adjusting the length of the elastic member.

2. The folding device according to claim 1, characterized in that, The adjusting member has a rotation center. Along the circumferential direction of the adjusting member, the adjusting member includes a first abutting surface and a second abutting surface, and a first distance from the rotation center to the first abutting surface is less than a second distance from the rotation center to the second abutting surface; Wherein, when the adjusting member rotates from abutting against the blocking member at the first abutting surface to abutting against the blocking member at the second abutting surface, the blocking member slides along a direction close to the second cam member, thereby reducing the length of the elastic member; when the adjusting member rotates from abutting against the blocking member at the second abutting surface to abutting against the blocking member at the first abutting surface, the blocking member slides along a direction away from the second cam member, thereby increasing the length of the elastic member.

3. The folding device according to claim 2, wherein The adjusting member further includes a third abutting surface, and a third distance from the rotation center to the third abutting surface is greater than the second distance.

4. The folding device according to claim 3, wherein Along the circumferential direction of the adjusting member are sequentially the first abutting surface, the second abutting surface, and the third abutting surface.

5. The folding device according to claim 2, characterized in that, The adjusting member further has an arc surface bent and connected between the first abutting surface and the second abutting surface, and the arc surface protrudes along a direction away from the rotation center.

6. The folding device according to claim 5, characterized in that, From the direction of the first abutting surface to the second abutting surface, the distance from the rotation center to the arc surface gradually increases; or, the distance from the rotation center to the arc surface remains unchanged and is greater than the second distance.

7. The folding device according to claim 1, wherein The rotating shaft, the rotating member, the second cam member, the elastic member, and the blocking member form a torsion assembly. The folding device includes two such torsion assemblies. The two torsion assemblies are disposed on opposite sides of the base, and the two blocking members of the two torsion assemblies are connected to each other, and the adjusting member abuts against the connection of the two blocking members.

8. The folding device according to claim 7, wherein, The folding device further includes a synchronization assembly. Opposite ends of the synchronization assembly are respectively rotatably connected to two rotating members of the two torsion assemblies, and one end of the synchronization assembly is inserted into the connection of the two blocking members; when the blocking member slides along a direction away from the second cam member, one end of the synchronization assembly is still inserted into the connection of the two blocking members.

9. The folding device according to claim 1, characterized in that, The folding device further includes a decorative member for fixing the base. The decorative member has a through hole. The adjusting member includes an adjusting portion and a rotating shaft. The adjusting portion abuts against the blocking member. The rotating shaft is inserted into the through hole and the end face of the rotating shaft is exposed, so that the adjusting member is rotatably connected to the decorative member. The end face is provided with a first engaging portion, and the first engaging portion is used to cooperate with a second engaging portion of the auxiliary member, so that the auxiliary member can drive the adjusting member to rotate relative to the decorative member.

10. The folding device according to any one of claims 1-9, characterized in that, The folding device further includes: Two first rotating members, respectively rotatably connected to opposite sides of the base; Two second rotating members, respectively rotatably connected to opposite sides of the base; Two connecting members, one of the first rotating member and the second rotating member on the same side of the base is rotatably connected to the connecting member, and the other is slidably connected to the connecting member; and Two supporting members, each supporting member is rotatably connected to one of the connecting members, and is slidably and rotatably connected to the other of the first rotating member and the second rotating member; Wherein, the rotating member is at least one of the first rotating member and the second rotating member.

11. A housing assembly, characterized in that, The housing assembly includes a first housing, a second housing, and the folding device according to any one of claims 1-10, and the folding device is connected between the first housing and the second housing.

12. An electronic device, characterized in that, The electronic device includes a flexible screen and the housing assembly according to claim 11, and the flexible screen is disposed on the same side of the first housing, the second housing, and the folding device.

Images