Folding device, shell assembly and electronic equipment

Abstract

The invention provides a folding device, a shell assembly and electronic equipment. The folding device comprises a base, a rotating part and a bearing part. One end of the rotating part is rotatably connected with the base, and the bearing part is slidably and rotatably connected with one end of the rotating part. When the folding device is folded, the other end of the rotating piece rotates in the direction away from the bottom face of the base, and the bearing piece moves in the direction close to the bottom face of the base. When the folding device is unfolded, the other end of the rotating piece rotates in the direction close to the bottom face of the base, and the bearing piece moves in the direction away from the bottom face of the base. Through mutual cooperation of the base, the rotating piece and the bearing piece, when the folding device is folded, the bearing piece moves downwards, the size of the screen containing space is increased, the R angle of the flexible screen can be increased, the bending stress of the flexible screen can be reduced, namely, the stress between the laminated layers in the flexible screen is reduced, and the flexible screen is not prone to failure. In addition, in the folding or falling process, the probability of failure of the flexible screen and surrounding structural parts due to collision is reduced, and the display reliability of the flexible screen can be effectively improved.

Description

Technical Field

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

[0002] Competition in the mobile terminal industry is increasingly trending towards large screens and ultra-thin devices, but large screens make the entire device too large and inconvenient to carry. Foldable electronic devices can solve the above problem by changing the size of the electronic device due to their folding function, and are now popular with a large number of users. Electronic devices rely on folding devices to achieve the folding function. Currently, when the folding device is in the folded state, the screen space used to accommodate the flexible screen is small, resulting in poor reliability of the flexible screen. Summary of the invention

[0003] In view of this, the first aspect of the present application provides a folding device, comprising:

[0004] Pedestal;

[0005] a rotating member, one end of which is rotatably connected to the base; and

[0006] A bearing member, slidably and rotatably connected to one end of the rotating member;

[0007] Among them, when the folding device is folded, the other end of the rotating member rotates along the bottom surface direction away from the base, and the supporting member moves along the bottom surface direction close to the base; when the folding device is unfolded, the other end of the rotating member rotates along the bottom surface direction close to the base, and the supporting member moves along the bottom surface direction away from the base.

[0008] The folding device provided in the first aspect of the present application is such that, under the premise that one end of the rotating member is rotatably connected to the base, one end of the rotating member is also slidably and rotatably connected to the supporting member at the same time, so that when the rotating member rotates relative to the base, the supporting member can also be controlled to move. Specifically, when the folding device is folded, the other end of the rotating member can rotate relative to the base in a direction away from the bottom surface of the base, and the rotating member and the supporting member cooperate with each other to move the supporting member in a direction close to the bottom surface of the base. In other words, when the folding device is folded, the supporting member moves downward to increase the size of the screen space. The increased accommodation space for the flexible screen can increase the R angle of the flexible screen and reduce the bending stress of the flexible screen, that is, reduce the stress between the various laminated layers in the flexible screen, resulting in the flexible screen being less likely to fail. In addition, the probability of failure of the flexible screen and surrounding structural parts due to collision is reduced during folding or falling, which can effectively improve the display reliability of the flexible screen.

[0009] 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.

[0010] The shell assembly provided in the second aspect of the present application, by adopting the folding device provided in the first aspect of the present application, can increase the screen capacity space of the flexible screen in the folded state and improve the reliability of the flexible screen.

[0011] A third aspect of the present application provides an electronic device, comprising a flexible screen and a shell assembly as provided in the second aspect of the present application, wherein the flexible screen is arranged on the same side of the first shell, the second shell, and the folding device.

[0012] The electronic device provided in the third aspect of the present application, by adopting the shell assembly provided in the second aspect of the present application, can increase the screen capacity space of the flexible screen in the folded state and improve the reliability of the flexible screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the implementation modes of the present application, the drawings required for use in the implementation modes of the present application will be described below.

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the folding device in an embodiment of the present application when it is in an unfolded state.

[0015] Figure 2 for Figure 1 An exploded view of the folding device is shown.

[0016] Figure 3 for Figure 1 The folding device shown is a schematic cross-sectional view along the AA direction.

[0017] Figure 4 This is a schematic diagram of the three-dimensional structure of the folding device when the rotating member is folded 45 degrees in one embodiment of the present application.

[0018] Figure 5 for Figure 4 The cross-sectional schematic diagram of the folding device along the BB direction is shown.

[0019] Figure 6 It is a schematic diagram of the three-dimensional structure of the folding device in one embodiment of the present application when it is in a folded state.

[0020] Figure 7 for Figure 6 The folding device shown is a schematic cross-sectional view along the CC direction.

[0021] Figure 8 It is a schematic diagram of an exploded view of a rotating member and a part of a supporting member in one embodiment of the present application.

[0022] Fig. 9 This is a schematic diagram of an exploded view of a rotating member and a portion of a supporting member from another perspective in one embodiment of the present application.

[0023] Fig.10 It is a schematic diagram of the exploded view of the base and part of the supporting components in one embodiment of the present application.

[0024] Fig.11 It is an exploded schematic diagram of two rotating parts, a base, a synchronous gear, and a part of the bearing parts in one embodiment of the present application.

[0025] Fig.12 In another embodiment of the present application Figure 1 The folding device shown is a schematic cross-sectional view along the AA direction.

[0026] Fig.13 This is a schematic diagram of the three-dimensional structure of the folding device in another embodiment of the present application when it is in an unfolded state.

[0027] Fig.14 for Fig.13 An exploded view of the folding device is shown.

[0028] Fig.15 for Fig.14 An exploded view of the track mechanism in the folding device is shown.

[0029] Fig.16 for Fig.13 A front view of the folding device is shown.

[0030] Fig.17 This is a schematic diagram of the three-dimensional structure of the folding device in another embodiment of the present application when it is in a folded state.

[0031] Fig.18 for Fig.17 A front view of the folding device is shown.

[0032] Fig.19 It is a schematic diagram of the coordination of the base, the first rotating member, the second rotating member, and the connecting member in one embodiment of the present application.

[0033] Fig. 20 It is an exploded front view of the base, the second rotating member, and the connecting member in one embodiment of the present application.

[0034] Fig.21 It is a schematic diagram of an exploded view of a base, a second rotating member, and a part of a supporting member in one embodiment of the present application.

[0035] Fig. 22 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.

[0036] Fig.23 It is a cross-sectional schematic diagram of the base, the second rotating member, and the supporting member when the folding device is in a folded state in one embodiment of the present application.

[0037] Fig.24 It is a schematic diagram of the three-dimensional structure of the shell assembly in an embodiment of the present application when it is in an unfolded state.

[0038] Fig.25 It is a schematic diagram of the three-dimensional structure of the shell assembly in one embodiment of the present application when it is in a folded state.

[0039] Fig.26 It is a schematic diagram of the three-dimensional structure of an electronic device in an unfolded state according to one embodiment of the present application.

[0040] Fig. 27 It is a schematic diagram of the three-dimensional structure of an electronic device in a folded state according to one embodiment of the present application.

[0041] Description of labels:

[0042] Folding device-1, screen space-1a, track mechanism-1b, housing assembly-2, electronic device-3, base-10, bottom surface-100, first rotation axis-C1, second rotation axis-C2, third rotation axis-C3, first part-121, second part-122, connecting part-123, slider-124, rotating member-20, rolling axis-200, rotating hole-201, tooth-22, synchronous gear-23, first rotating member-30, second rotating member-40, sliding block-42, first rolling axis-43, connecting member-50, back side-500, sliding groove-5 2. Support member 60, support portion 61, support surface 610, rolling portion 62, first rolling groove 620, third limit end 621, fourth limit end 622, first connecting portion 623, second connecting portion 624, bearing member 70, bearing surface 700, bearing portion 71, sliding portion 72, rolling groove 720, first limit end 721, second limit end 722, connecting portion 723, slide groove 730, decorative member 74, first shell 91, second shell 92, flexible screen 93, bending area 930, non-bending area 931. DETAILED DESCRIPTION

[0043] The following are preferred implementations of the present application. It should be noted that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application, and these improvements and modifications are also considered to be within the scope of protection of the present application.

[0044] 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, resulting in 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.

[0045] The foldable display terminal relies on a folding device to achieve the folding function. The inclined plate and the middle plate in the folding device are mainly used to support and carry the flexible screen, providing rigid support for the flexible screen. When the flexible screen is unfolded or folded, the inclined plate and the middle plate can move synchronously, and the inclined plate and the middle plate can also move according to a preset trajectory driven by other components, so that when the folding device is in a folded state, the inclined plate and the middle plate can be surrounded to form a screen space for accommodating the flexible screen. With the continuous development of electronic devices, higher and higher requirements are put forward for the thinness and long battery life of products. On this basis, the miniaturization of folding devices is an important development direction, so as to leave more space for stacking product batteries. At present, the three-plate structure includes two inclined plates and a middle plate. The two inclined plates can be folded or unfolded with each other, but the middle plate always remains fixed. Therefore, the reduction in the size of each component in the folding device leads to a reduction in the size of the screen space. The flexible screen has limited downward movement space during the folding process, which further reduces the R angle of the flexible screen, increases the stress between the various layers of the flexible screen, that is, the bending stress increases, and it is easy to fail, which reduces the reliability of the product. In addition, the reduction in screen space makes the flexible screen easy to collide with other structural parts when folded, increasing the probability of failure due to collision, further reducing the reliability of the flexible screen.

[0046] In order to solve the above technical problems, this application provides a folding device. Please refer to Figure 1-Figure 7 The folding device 1 provided in this embodiment includes a base 10, a rotating member 20, and a supporting member 70. One end of the rotating member 20 is rotatably connected to the base 10, and the supporting member 70 is slidably and rotatably connected to one end of the rotating member 20. When the folding device 1 is folded, the other end of the rotating member 20 rotates in a direction away from the bottom surface 100 of the base 10, and the supporting member 70 moves in a direction close to the bottom surface 100 of the base 10. When the folding device 1 is unfolded, the other end of the rotating member 20 rotates in a direction close to the bottom surface 100 of the base 10, and the supporting member 70 moves in a direction away from the bottom surface 100 of the base 10.

[0047] The folding device 1 can also be called a shaft or hinge, which is mainly used in electronic products such as mobile phones, tablets, computers, etc. It can also be used in other non-electronic products that require a torque shaft 111, such as doors, windows, etc. The folding device 1 provided in this embodiment mainly includes a base 10, a rotating member 20 and a supporting member 70, which means that this embodiment can solve the above-mentioned technical problems only by using the base 10, the rotating member 20 and the supporting member 70. However, in other embodiments, the folding device 1 may also include other components, such as connecting members, supporting members, synchronization mechanisms, torsion mechanisms, etc. Next, this embodiment will introduce the base 10, the rotating member 20 and the supporting member 70 in detail.

[0048] The base 10 is a basic component in the folding device 1, which 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 other components of the folding device 1 mainly perform various movements. This embodiment does not limit the shape, structure, material and other parameters of the base 10, as long as it can provide an assembly basis for other components. Optionally, the base 10 has a top surface, a bottom surface 100 arranged opposite to each other, and a side surface between the top surface and the bottom surface 100 that is bent and connected. When the folding device 1 is subsequently applied to an electronic device, the top surface can be close to the flexible screen of the electronic device, the bottom surface 100 is away from the flexible screen, and the bottom surface 100 can also cooperate with the decorative member 74, and the decorative member 74 is used to cover the base 10. 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, the top surface and the bottom surface 100 are both planes, which is convenient for subsequent cooperation with other components. The side surface is a protruding curved surface, which improves the appearance of the base 10 and facilitates matching with the decorative element 74.

[0049] The rotating member 20 mainly plays a role of rotation in the folding device 1, so that the folding device 1 has the ability to fold and flatten, and the rotation of the rotating member 20 drives and limits the movement of other components, so that other components move according to a predetermined trajectory. One end of the rotating member 20 is rotatably connected to the base 10 so that the rotating member 20 can rotate relative to the base 10, and the other end of the rotating member 20 can be connected to other components such as a connecting member later. In other words, the end of the rotating member 20 close to the base 10 is one end of the rotating member 20, and the end of the rotating member 20 away from the base 10 is the other end of the rotating member 20. This embodiment does not limit the shape, structure, material and other parameters of the rotating member 20, as long as it can be rotatably connected to the base 10. The rotation of the rotating member 20 enables the folding device 1 to have a variety of different states, such as an unfolded state and a folded state, wherein the unfolded state can be understood as the state when the rotating member 20 is completely flattened. At this time, the other end of the rotating member 20 is arranged corresponding to the side of the base 10, so that the upper surface of the subsequent support member can be arranged horizontally, thereby fully unfolding the flexible screen. The folded state can be understood as the state when the rotating member 20 is completely folded. At this time, the other end of the rotating member 20 is arranged corresponding to the top surface of the base 10, so that the two opposite ends of the subsequent flexible screen can be close to each other, and the flexible screen reaches a completely 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.

[0050] The supporting member 70 is plate-shaped as a whole, and is mainly used to support and carry the flexible screen when the folding device 1 is subsequently applied to electronic devices, so as to control the folding shape of the flexible screen. The supporting member 70 can also be called a middle plate. The supporting member 70 has a supporting surface 700 for carrying the flexible screen, that is, the upper surface of the supporting member 70. The supporting member 70 and the flexible screen are only in abutment relationship, so that the flexible screen will not be affected when the supporting member 70 moves subsequently. This embodiment does not limit the parameters such as the shape, structure, and material of the supporting member 70, as long as it can support the flexible screen and subsequently slide and rotate to connect the rotating member 20.

[0051] In the related art, when the folding device 1 is folded or unfolded, the middle plate is fixed, resulting in a smaller screen space 1a, which reduces the reliability of the flexible screen. In this embodiment, the supporting member 70 is slidably and rotatably connected to one end of the rotating member 20, that is, the supporting member 70 can both rotate relative to the rotating member 20 and slide relative to the rotating member 20. In other words, the supporting member 70 is rollingly connected to the rotating member 20. Optionally, the rotating member 20 can be directly connected to the supporting member 70, or the rotating member 20 can be indirectly connected to the supporting member 70 through other components. Regardless of whether it is a direct connection or an indirect connection, when the folding device 1 moves, that is, when the rotating member 20 rotates relative to the base 10, the rotating member 20 can also control the movement of the supporting member 70 because the rotating member 20 is slidably and rotatably connected to the supporting member 70. Specifically, as Figures 3 to 5to Figure 7 , when the folding device 1 is folded, the other end of the rotating member 20 rotates in a direction away from the bottom surface 100 of the base 10, which can also be understood as the rotating member 20 rotating counterclockwise upward. The rotating member 20 can synchronously drive the supporting member 70 to move in a direction close to the bottom surface 100 of the base 10, that is, the supporting member 70 gradually moves downward. When the folding device 1 is in a folded state, the supporting member 70 moves downward by the maximum displacement ΔL, increasing the size of the screen space 1a, that is, the depth of the screen space 1a. The increased accommodating space for the flexible screen can increase the R angle of the flexible screen and reduce the bending stress of the flexible screen, that is, reduce the stress between the various laminates in the flexible screen, resulting in the flexible screen being less likely to fail. In addition, the probability of failure of the flexible screen and surrounding structural parts due to collision is reduced during folding or falling, which can effectively improve the display reliability of the flexible screen.

[0052] like Figure 7 to Figure 5 to Figure 3 When the folding device 1 is unfolded, the rotating member 20 rotates in the opposite direction, that is, the other end of the rotating member 20 rotates in the direction close to the bottom surface 100 of the base 10, which can also be understood as the rotating member 20 rotating clockwise downward. The rotating member 20 can synchronously drive the supporting member 70 to move in the direction away from the bottom surface 100 of the base 10, that is, the supporting member 70 gradually moves upward. When the folding device 1 is in the unfolded state, the supporting member 70 moves upward by the maximum displacement ΔL, and the supporting member 70 can support and carry the flexible screen again. In summary, this embodiment drives the supporting member 70 to move up and down through the mutual cooperation of the base 10, the rotating member 20, and the supporting member 70, so that the folding device 1 has a larger screen space 1a in the bending area when in the folded state, thereby solving the problem of the cramped space in the bending area of ​​the flexible screen during the narrowing of the folding device 1 and improving reliability.

[0053] The rotation mentioned above can be understood as the two parts can perform circular motion around the rotation axis, with only angle changes but no displacement changes. Sliding can be understood as the two parts moving in parallel, with only displacement changes but no angle changes. The two parts can both slide and rotate, which means that the two parts have both displacement changes and angle changes. In this case, this sliding and rotation can also be called rolling.

[0054] In this embodiment, the carrier 70 includes a carrier portion 71 having a carrier surface 700, and a sliding portion 72 disposed on a side of the carrier portion 71 away from the carrier surface 700. The sliding portion 72 is slidably connected to the base 10 and is slidably and rotatably connected to one end of the rotating member 20. A first rotation axis C1 between the rotating member 20 and the base 10 and a second rotation axis C2 between the rotating member 20 and the sliding portion 72 are parallel to each other. When the folding device 1 is in the unfolded state, the first rotation axis C1 is closer to the bottom surface 100 of the base 10 than the second rotation axis C2.

[0055] The bearing member 70 may include a bearing portion 71 and a sliding portion 72. The bearing portion 71 is in the shape of a long plate and is mainly used to bear a flexible screen. Therefore, the bearing portion 71 has a bearing surface 700 for bearing the flexible screen, that is, the upper surface of the bearing portion 71 is the bearing surface 700. The sliding portion 72 is arranged on the side of the bearing portion 71 away from the bearing surface 700, that is, the sliding portion 72 is arranged on the lower surface of the bearing portion 71. The bearing portion 71 and the sliding portion 72 may be an integral structure or a split structure. In this embodiment, only the bearing portion 71 is schematically described as an integral structure. The sliding portion 72 cooperates with one end of the rotating member 20 to realize sliding and rotating connection. In other words, the sliding portion 72 can rotate relative to the rotating member 20 and can also slide relative to the rotating member 20. At this time, it can also be said that the sliding portion 72 is rollingly connected to the rotating member 20. The rotating member 20 controls the movement of the bearing portion 71 by controlling the movement of the sliding portion 72. The sliding portion 72 is also slidably connected to the base 10, and the sliding direction of the sliding portion 72 relative to the base 10 is perpendicular to the first rotation axis C1, that is, the sliding portion 72 can slide relative to the base 10 in a direction perpendicular to the bottom surface 100 of the base 10, and the sliding portion 72 can also slide relative to the base 10 in a direction inclined to the bottom surface 100 of the base 10. In this embodiment, the sliding portion 72 can move up and down relative to the base 10, thereby driving the bearing portion 71 to move up and down relative to the base 10. By rolling the rotating member 20 to connect the sliding portion 72, the rotation of the rotating member 20 can be converted into the sliding of the sliding portion 72 and the bearing portion 71, thereby increasing the size of the screen space 1a.

[0056] Since the rotating member 20 is rotatably connected to the base 10, there is a first rotation axis C1 between the rotating member 20 and the base 10. Similarly, since the rotating member 20 is also rotatably connected to the sliding portion 72, there is a second rotation axis C2 between the rotating member 20 and the sliding portion 72. In this embodiment, the first rotation axis C1 and the second rotation axis C2 can be parallel to each other. In other words, the first rotation axis C1 and the second rotation axis C2 do not overlap and have a spacing. Specifically, when the folding device 1 is in the unfolded state, the first rotation axis C1 is closer to the bottom surface 100 of the base 10 than the second rotation axis C2. In other words, the first rotation axis C1 is lower than the second rotation axis C2. When the folding device 1 is folded, the rotating member 20 is driven by an external force to rotate relative to the base 10 around the first rotation axis C1, thereby changing the position of the second rotation axis C2, so that the second rotation axis C2 has a displacement tendency to move downward, so the rotating member 20 can drive the sliding part 72 to move downward relative to the bottom surface 100 of the base 10, and the bearing part 71 also moves downward, thereby achieving the effect of increasing the size of the screen space 1a. When the folding device 1 is unfolded, its movement process is opposite to that when folded, and this embodiment will not be repeated again. In summary, this embodiment can control the movement direction of the bearing part 71 when the folding device 1 is unfolded and folded by making the sliding part 72 slide and rotate to connect the rotating member 20, and controlling the positions of the first rotation axis C1 and the second rotation axis C2.

[0057] Please refer again Figure 2 In this embodiment, the rotating member 20 and the base 10 are connected by the rotating shaft 111 and the rotating hole 201. The rotating shaft 111 is provided on one of the rotating member 20 and the base 10, and the rotating hole 201 is provided on the other of the rotating member 20 and the base 10. For example, when the rotating shaft 111 is provided on the rotating member 20, the rotating hole 201 is provided on the base 10, and when the rotating hole 201 is provided on the rotating member 20, the rotating shaft 111 is provided on the base 10. This embodiment is only schematically described by assuming that the rotating hole 201 is provided on the rotating member 20 and the rotating shaft 111 is provided on the base 10, and the axis of the rotating shaft 111 is the first rotating axis mentioned above. In addition, in addition to the rotating member 20 being sleeved on the rotating shaft 111 through the rotating hole 201, other components can also be sleeved on the rotating shaft 111 and realize corresponding functions.

[0058] Please refer to Figure 3 , Figure 5 , Figure 7 ,as well as Figure 8-Figure 9 In this embodiment, the rotating member 20 and the sliding portion 72 are connected by the rolling shaft 200 and the rolling groove 720. The rolling shaft 200 is provided at one of the rotating member 20 and the sliding portion 72, and the rolling groove 720 is provided at the other of the rotating member 20 and the sliding portion 72. The rolling groove 720 has a first limiting end 721 and a second limiting end 722 which are arranged opposite to each other. When the folding device 1 is in the unfolded state, the first limiting end 721 is closer to the other end of the rotating member 20 than the second limiting end 722, and the rolling shaft 200 is positioned at the first limiting end 721. When the folding device 1 is in the folded state, the rolling shaft 200 is positioned at the second limiting end 722.

[0059] One end of the rotating member 20 can be simultaneously rotatably connected to the base 10 and rollingly connected to the sliding portion 72. Optionally, one side of the rotating member 20 is rotatably connected to the base 10, and the other side is rollingly connected to the sliding portion 72, or a groove is formed in the middle of the rotating member 20 and the sliding portion 72 is disposed in the groove to achieve rolling connection. The rotating member 20 and the sliding portion 72 can be connected by the rolling shaft 200 and the rolling groove 720. For example, when the rolling shaft 200 is disposed on the rotating member 20, the rolling groove 720 is disposed on the sliding portion 72, and when the rolling groove 720 is disposed on the rotating member 20, the rolling shaft 200 is disposed on the sliding portion 72. This embodiment is only schematically described by assuming that the rolling shaft 200 is disposed on the rotating member 20 and the rolling groove 720 is disposed on the sliding portion 72. The axis of the rolling shaft 200 is the second rotation axis C2 mentioned above. When the rotating member 20 rotates relative to the base 10 , the rolling shaft 200 thereon also rotates around the first rotation axis C1 of the rotating shaft 111 , so that the rolling shaft 200 has a downward movement displacement, thereby driving the supporting part 71 of the sliding part 72 matched therewith to move up and down.

[0060] Optionally, the rolling shaft 200 and the rotating member 20 may be an integrated structure or a split structure. Optionally, the rolling shaft 200 includes but is not limited to a pin. Optionally, the cross-sectional shape of the rolling shaft 200 may be circular, rectangular, triangular, trapezoidal, wedge-shaped, etc. Correspondingly, the shape of the rolling groove 720 may be set to circular, rectangular, triangular, trapezoidal, wedge-shaped, etc.

[0061] The rolling groove 720 has two oppositely disposed ends: a first limiting end 721 and a second limiting end 722. Since the rolling shaft 200 will slide in the rolling groove 720, the first limiting end 721 and / or the second limiting end 722 can be used to limit the position of the rolling shaft 200, so that when the rolling shaft 200 slides to the first limiting end 721 and / or the second limiting end 722, its sliding stops and it cannot continue to slide, thereby preventing the rotating member 20 from excessively bending back and damaging other components. At this time, the rolling groove 720 can be understood as a groove with closed ends and groove walls. In other embodiments, the first limiting end 721 and / or the second limiting end 722 can also be an open notch, that is, without a groove wall, to facilitate the installation and removal of the rolling shaft 200.

[0062] like Figure 3 As shown, when the folding device 1 is in the unfolded state, the first limit end 721 is closer to the other end of the rotating member 20 than the second limit end 722. In other words, the first limit end 721 is further to the right and arranged outside than the second limit end 722. When the folding device 1 is in the unfolded state, the rolling shaft 200 is positioned at the first limit end 721, and when the folding device 1 is in the folded state, the rolling shaft 200 is positioned at the second limit end 722. Therefore, when the folding device 1 is folded, the rotating member 20 rotates downward to drive the rolling shaft 200 to rotate downward, and drives the rolling shaft 200 to slide from right to left in the rolling groove 720, thereby driving the sliding portion 72 and the bearing portion 71 to move downward. When the folding device 1 is unfolded, the rotating member 20 rotates upward to drive the rolling shaft 200 to rotate upward, and drives the rolling shaft 200 to slide from left to right in the rolling groove 720, thereby driving the sliding portion 72 and the bearing portion 71 to move upward. In summary, the moving direction of the supporting component 70 can be controlled by controlling the position of the rolling shaft 200 in the rolling groove 720 when the rolling shaft 200 is in the folded state and the unfolded state.

[0063] In this embodiment, the rolling groove 720 further has a connecting portion 723 connecting the first limiting end 721 and the second limiting end 722, and the connecting portion 723 is parallel to the bottom surface 100 of the base 10. The rolling groove 720 is a groove with a certain length, so the rolling groove 720 has a connecting portion 723 connecting the first limiting end 721 and the second limiting end 722 in addition to the first limiting end 721 and the second limiting end 722. The rolling shaft 200 can be located in the connecting portion 723 in other states except the unfolded state and the folded state. In this embodiment, the connecting portion 723 can be parallel to the bottom surface 100 of the base 10, that is, the shape of the connecting portion 723 is a straight line. When the rolling shaft 200 slides in the connecting portion 723, the straight connecting portion 723 can make the sliding portion 72 move evenly, thereby improving the consistency of the movement of the bearing portion 71 and avoiding the interference between the flexible screen and the bearing portion 71 due to the slow movement of the sliding portion 72. Of course, in other embodiments, the shape of the connecting portion 723 may also be an arc shape, as long as the positions of the first limiting end 721 and the second limiting end 722 satisfy the above positional relationship.

[0064] Please refer to Fig.10 In this embodiment, the base 10 includes a first portion 121, a second portion 122, and a connecting portion 123 connecting the first portion 121 and the second portion 122. Two sliding portions 72 are arranged at intervals on the side of the bearing portion 71 away from the bearing surface 700. The two sliding portions 72 are arranged on opposite sides of the connecting portion 123. Each sliding portion 72 is connected to the connecting portion 123 through a slider 124 and a slide groove 730. The slider 124 is arranged at one of the sliding portion 72 and the connecting portion 123, and the slide groove 730 is arranged at the other of the sliding portion 72 and the connecting portion 123.

[0065] The base 10 includes a first portion 121, a second portion 122, and a connecting portion 123, wherein the first portion 121 and the second portion 122 are spaced apart, the first portion 121 is used to set other components later, the second portion 122 is used to set the rotating shaft 111 and other components such as the synchronous gear 23, and the connecting portion 123 is provided between the first portion 121 and the second portion 122 and is used to connect the first portion 121 and the second portion 122. Optionally, the width of the connecting portion 123 is smaller than the width of the first portion 121 and the second portion 122, so as to cooperate with the sliding portion 72 to reduce the overall width of the folding device 1.

[0066] In this embodiment, there are two sliding parts 72, and they are arranged at intervals along the width direction of the bearing part 71 on the side of the bearing part 71 away from the bearing surface 700, so that the two sliding parts 72 can be arranged on opposite sides of the connecting part 123, so as to better cooperate with the connecting part 123. Each sliding part 72 is connected to the connecting part 123 through a slider 124 and a slide groove 730. The slider 124 is arranged on one of the sliding part 72 and the connecting part 123, and the slide groove 730 is arranged on the other of the sliding part 72 and the connecting part 123. For example, when the slider 124 is arranged on the sliding part 72, the slide groove 730 is arranged on the connecting part 123, and when the slide groove 730 is arranged on the sliding part 72, the slider 124 is arranged on the connecting part 123. In this embodiment, the slider 124 is arranged on the connecting part 123 and the slide groove 730 is arranged on the sliding part 72 for schematic description. Specifically, the features of the sliders 124 are protruded from opposite sides of the connecting portion 123 , and each sliding portion 72 is respectively provided with a corresponding sliding groove 730 . The cooperation between the slider 124 and the sliding groove 730 can provide movement guidance and limiting functions for the sliding portion 72 .

[0067] Optionally, the first portion 121, the second portion 122, and the connecting portion 123 may be an integrated structure or a split structure. Further optionally, the connecting portion 123 and the slider 124 may be an integrated structure or a split structure. Optionally, the cross-sectional shape of the slider 124 and the slide groove 730 may be a rectangle, a triangle, a trapezoid, etc. Optionally, the number of the sliders 124 may be one group or multiple groups. Further optionally, the two sliders 124 in each group may be arranged on a horizontal line or staggered.

[0068] Please refer to Fig.11 and Fig.12 In this embodiment, the folding device 1 includes two rotating members 20, which are rotatably connected to opposite sides of the base 10 and are slidably and rotatably connected to opposite sides of the supporting member 70. The two rotating members 20 are configured to rotate in opposite directions synchronously with each other via the supporting member 70.

[0069] The folding device 1 may be provided with two rotating members 20, one end of one rotating member 20 is rotatably connected to one side of the base 10, and one end of the other rotating member 20 is rotatably connected to the other side of the base 10. The other ends of the two rotating members 20 may be subsequently connected to other components to realize that both the left and right sides of the folding device 1 can rotate. In addition, one end of one rotating member 20 may also be rollably connected to a sliding portion 72, and one end of the other rotating member 20 may be rollably connected to another sliding portion 72. When one rotating member 20 rotates relative to the base 10, for example, when the folding device 1 is folded, one rotating member 20 rotates upward relative to the base 10 in a first direction, driving the rolling shaft 200 on the rotating member 20 to also have a downward displacement, thereby driving the sliding portion 72 matched therewith to move downward. When the sliding part 72 moves downward, it will drive the rolling shaft 200 on another rotating member 20 matched with the sliding part 72 to also have a downward rotation displacement, thereby driving another rotating member 20 on the other side of the base 10 to rotate upward in a second direction opposite to the first direction. Finally, the two rotating members 20 on both sides of the base 10 can achieve synchronous reverse rotation, which provides a basis for the synchronous movement of the two shells and the symmetry of the flexible screen during the subsequent folding and unfolding process, ensuring that the two ends of the flexible screen are tightly connected in the folded state and the flexible screen is flat in the unfolded state. As for the unfolding process being opposite to the folding process, this embodiment will not be repeated here.

[0070] Compared with the four-gear synchronization scheme in the related art, its manufacturing and assembly is complex, the cost is high, and the surface of the tooth 22 is worn during movement, affecting the function. In addition, with the trend of miniaturization of the folding device 1, the size of the gear is relatively reduced, which increases the difficulty of processing and manufacturing. This embodiment can reduce the number of mechanisms, reduce the weight of the folding device 1, reduce the difficulty of processing and manufacturing, simplify the complexity of assembly, shorten the size of the folding device 1 and save costs on the basis of achieving synchronization. In summary, the sliding portion 72 of this embodiment can not only achieve the purpose of controlling the up and down sliding of the carrier 70, but also achieve the effect of synchronous rotation.

[0071] In other embodiments, a gear synchronization scheme may also be adopted. For example, a plurality of teeth 22 are provided in the circumference of one end of each rotating member 20. The folding device 1 further comprises two mutually meshing synchronous gears 23, one synchronous gear 23 meshes with the teeth 22 of one rotating member 20, and the other synchronous gear 23 meshes with the teeth 22 of the other rotating member 20. The effect of synchronous reverse rotation of the two rotating members 20 can also be achieved by four-gear transmission. In this embodiment, only the bearing member 70 can be used to achieve the synchronization effect, and the gear synchronization scheme can also be used on the basis of the bearing member 70 to further improve the accuracy of the synchronous transmission.

[0072] Please refer to Figure 13-Figure 18The folding device 1 provided in this embodiment further includes two first rotating members 30, two second rotating members 40, a connecting member 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 located on the same side of the base 10 is rotatably connected to the connecting member 50, and the other is slidably connected to the connecting member 50. 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. When the folding device 1 is in the unfolded state, the two supporting members 60 are located on opposite sides of the carrier 70. Among them, the rotating member 20 is at least one of the first rotating member 30 and the second rotating member 40.

[0073] The first rotating member 30, the second rotating member 40, the connecting member 50, and the supporting member 60 in the folding device 1 can be collectively referred to as a track mechanism 1b, which is mainly used to control the movement track of the supporting member 60, thereby controlling the cross-sectional shape of the flexible screen in the subsequent folding state, ensuring better support for the flexible screen without damaging the various layer structures in the flexible screen. 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 detail.

[0074] The two first rotating members 30 in the folding device 1 mainly realize the folding function through their ability to rotate, and through the rotation of the two first rotating members 30, the components connected to the two first rotating members 30 are driven and limited, so that these components move according to a predetermined motion trajectory. The two first rotating members 30 are rotatably connected to the base 10 and the two first rotating members 30 are respectively arranged on opposite sides of the base 10, that is, the two first rotating members 30 can rotate relative to the base 10. In other words, the two first rotating members 30 are rotatably connected to the base 10 at one end close to the base 10. Since the base 10 is fixed, only the two first rotating members 30 rotate. It is worth noting that the opposite sides of the base 10 mentioned in this embodiment refer to the opposite sides along the width direction of the base 10, and the width direction can be understood as the arrangement direction of the two first rotating members 30. The opposite sides in this embodiment and the following can be understood in the same way. This embodiment does not limit the parameters such as the shape, structure, material, etc. of the first rotating member 30, as long as the first rotating member 30 can be rotatably connected to the base 10.

[0075] Optionally, the two first rotating members 30 are rotatably connected to the side of the base 10. Optionally, in one embodiment, the two first rotating members 30 are arranged axially symmetrically with respect to the base 10. In another embodiment, the two first rotating members 30 are arranged non-axially symmetrically with respect to the base 10, in other words, the two first rotating members 30 have a partially overlapping area in the thickness direction of the folding device 1. This embodiment is only schematically described with the two first rotating members 30 being arranged axially symmetrically with respect to the base 10.

[0076] The second rotating member 40 has the same function as the first rotating member 30. In the folding device 1, the folding function is mainly achieved through its ability to rotate, and the components connected to the two second rotating members 40 are driven and limited by the rotation of the two second rotating members 40, so that these components move according to a predetermined motion trajectory. The two second rotating members 40 are respectively rotatably connected to the opposite sides of the base 10, and the two second rotating members 40 are rotatably connected to one end of the base 10. This not only simplifies the structure of the folding device 1, but also enables the second rotating member 40 and the first rotating member 30 to be better rotatably connected to the base 10. In other words, the two second rotating members 40 are rotatably connected to the base 10 at one end close to the base 10. Since the base 10 is fixed, only the two second rotating members 40 rotate. 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.

[0077] Optionally, the two second rotating members 40 are rotatably connected to the side of the base 10. Optionally, in one embodiment, the two second rotating members 40 are arranged axially symmetrically with respect to the base 10, and in another embodiment, the two second rotating members 40 are arranged asymmetrically with respect to the base 10, in other words, the two second rotating members 40 have a partially overlapping area in the thickness direction of the folding device 1. This embodiment is only schematically described with the two second rotating members 40 being arranged axially symmetrically with respect to the base 10.

[0078] The connecting member 50 mainly serves 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, which can also be understood as the second rotating member 40 can slide relative to the connecting member 50. Or 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 also used to connect the shell later, so that the connecting member 50 and the shell are fixed together, so that when the shell rotates, the connecting member 50 can be driven to rotate together. The present embodiment does not limit the shape, structure, material and other parameters of the connecting member 50, as long as the connecting member 50 can realize rotational connection with one rotating member 20 and sliding connection with another rotating member 20. The present embodiment is only schematically described by rotatably connecting one connecting member 50 to each first rotating member 30 and sliding connection with one connecting member 50 to each second rotating member 40.

[0079] The support member 60 is mainly used to support the flexible screen when the folding device 1 is subsequently applied to an electronic device, so as to control the folding shape of the flexible screen, so the support member 60 can also be called an inclined plate. The folding device 1 may include two inclined plates and a middle plate, so the folding device 1 can also be called a three-plate structure. Optionally, the flexible screen can be bonded to the support member 60 by means of adhesive or the like, so that the shape of the flexible screen is more natural during the bending process, the stress is small after bending, and the damage to the flexible screen is reduced. Each support member 60 is arranged 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 is slidably and rotatably connected to a second rotating member 40. In other words, the support member 60 can rotate relative to the second rotating member 40, and the support member 60 can also slide relative to the second rotating member 40.

[0080] The folding device 1 provided in this embodiment can form a track 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 track mechanism 1b, which is arranged on one side of the support member 60. In another embodiment, the folding device 1 includes two track mechanisms 1b, which are arranged on one side of the support member 60, and the two track mechanisms 1b are arranged along the extension direction of the support member 60. At this time, the support member 60 is rotatably connected to the two connecting members 50, and is slidably and rotatably connected to the two second rotating members 40. In other embodiments, the folding device 1 includes three or more track mechanisms 1b, which are arranged on one side of the support member 60, and are arranged along the extension direction of the support member 60. At this time, the support member 60 is rotatably connected to three or more connecting members 50, and is slidably and rotatably connected to three or more second rotating members 40. This embodiment is only schematically described as a folding device 1 including three track mechanisms 1b, two support members 60, and one carrier 70. Of course, the solution of two track mechanisms 1b and the solution of one track mechanism 1b should also belong to the protection scope of this application.

[0081] Based on the above-mentioned connection relationship, it can be known that the folding device 1 provided in this embodiment is composed of 8 moving pairs on one side, specifically, the first rotating member 30 cooperates with the base 10 to form a rotating pair, the first rotating member 30 cooperates with the connecting member 50 to form a rotating pair, the second rotating member 40 cooperates with the base 10 to form a rotating pair, the second rotating member 40 cooperates with the connecting member 50 to form a sliding pair, the support member 60 cooperates with the second rotating member 40 to form a rolling pair, the support member 60 cooperates with the connecting member 50 to form a rotating pair, the first rotating member 30 and / or the second rotating member 40 and the sliding part 72 form a rolling pair, and the sliding part 72 and the base 10 form a sliding pair. Therefore, the total degree of freedom of the components on one side is 3*5 (a total of 5 components on one side, such as 1 first rotating member 30, 1 second rotating member 40, 1 connecting member 50, 1 supporting member 60, and 1 sliding portion 72)-2*6 (a total of 6 low pairs on one side, such as 2 sliding pairs and 4 rotating pairs)-1*2 (a total of 2 high pairs on one side, such as 2 rolling pairs) = 1. Since the sliding portion 72 is fixed to the bearing portion 71, the sliding portion 72 and the bearing portion 71 can be equivalent to one component.

[0082] Therefore, when the folding device 1 moves, the movement trajectory and movement route of each component are unique. Specifically, when the folding device 1 is folded, 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, and finally the two support members 60 are folded relative to each other. When the folding device 1 is unfolded, 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, and finally the two support members 60 are unfolded relative to each other.

[0083] The movement process of the folding device 1 mentioned above has a variety of active and passive logical relationships, and the present application uses one specific movement process as an example to illustrate. When the folding device 1 is folded, that is, when the folding device 1 is in the process of changing from the unfolded state to the folded state, in other words, when the two connecting members 50 rotate relative to the base 10 and approach each other, since the first rotating member 30 and the second rotating member 40 are both rotated to connect the base 10, the connecting member 50 can drive the first rotating member 30 and the second rotating member 40 to rotate relative to the base 10. And in the process of the first rotating member 30 and the second rotating member 40 rotating, the second rotating member 40 can also slide relative to the connecting member 50, that is, the connecting member 50 can slide along the second rotating member 40, thereby changing the distance between the connecting member 50 and the base 10. When the connecting member 50 slides, since the support member 60 is arranged on the connecting member 50, the connecting member 50 can drive the support member 60 to slide together. When the support member 60 slides, the second rotating member 40 can also slide and rotate relative to the support member 60, thereby driving the support member 60 to rotate relative to the connecting member 50. Of course, in other embodiments, the support member 60 may not rotate relative to the connecting member 50 during the sliding and rotating process of the second rotating member 40, that is, the support member 60 and the connecting member 50 remain stationary, and finally the two support members 60 can be folded with each other.

[0084] Similarly, when the folding device 1 is unfolded, that is, when the folding device 1 is in the process of changing from the folded state to the unfolded state, in other words, when the two connecting members 50 rotate in the opposite direction relative to the base 10 and move away from each other, since the first rotating member 30 and the second rotating member 40 are both rotated to connect the base 10, the connecting member 50 can drive the first rotating member 30 and the second rotating member 40 to rotate relative to the base 10. In addition, during the rotation of the first rotating member 30 and the second rotating member 40, the second rotating member 40 can also slide relative to the connecting member 50, that is, the connecting member 50 can slide along the second rotating member 40, thereby changing the distance between the connecting member 50 and the base 10. When the connecting member 50 slides, since the support member 60 is disposed on the connecting member 50, the connecting member 50 can drive the support member 60 to slide together. When the support member 60 slides, the second rotating member 40 can also slide and rotate relative to the support member 60, thereby driving the support member 60 to rotate relative to the connecting member 50. Of course, in other embodiments, the support member 60 may not rotate relative to the connecting member 50 during the sliding and rotating process of the second rotating member 40, that is, the support member 60 and the connecting member 50 remain stationary, and finally the two support members 60 can be unfolded to each other.

[0085] Of course, in other embodiments, the active and passive relationships of the above-mentioned multiple components can be reversed, for example, the support member 60 can rotate relative to the base 10 to drive the first rotating member 30, the second rotating member 40, and the connecting member 50 to rotate relative to the base 10. Such movement processes and principles should also fall within the protection scope of this application.

[0086] like Fig.16 As shown, when the two support members 60 are parallel to each other and are located on opposite sides of the base 10, the two support members 60 are in a state of being fully unfolded relative to each other. In other words, the folding device 1 is in an unfolded state. Fig.18 As shown in FIG. 1 , 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 state of being completely folded with each other. In other words, the folding device 1 is in a folded state. When the two support members 60 are folded with each other, that is, the process of the folding device 1 from the unfolded state to the folded state can also be understood as the process from Figures 16 to 18 When the two support members 60 are unfolded from each other, that is, the process of the folding device 1 from the folded state to the unfolded state can also be understood as the process from Figure 18 to Figure 16 process.

[0087] like Fig.18As shown, when the folding device 1 is in a folded state, the two support members 60 and the base 10 are jointly enclosed to form a screen space 1a for accommodating the flexible screen. The folding device 1 provided in this embodiment can make the cross-sectional shape of the screen space 1a U-shaped or teardrop-shaped. When the cross-sectional shape of the screen space 1a is U-shaped, the distance between the two support members 60 at the end away 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 space 1a is teardrop-shaped, the distance between the two support members 60 at the end away 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, after folding, the whole folding device 1 is thinner and flat. This embodiment is only schematically illustrated with the cross-sectional shape of the screen space 1a being teardrop-shaped.

[0088] 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 so as to cooperate with the sliding portion 72 of the bearing member 70, or the second rotating member 40 can be the rotating member 20 mentioned above so as to cooperate with the sliding portion 72 of the bearing member 70, or the first rotating member 30 and the second rotating member 40 can both be the rotating member 20 mentioned above so as to cooperate with the sliding portion 72 of the bearing member 70. In other words, the rotating member 20 mentioned above is a component of the first rotating member 30 and the second rotating member 40, but is artificially named differently. This embodiment is only schematically described with the rotating member 20 as the second rotating member 40, and in other embodiments, the rotating member 20 can also cooperate with the first rotating member 30. For example, by setting a rolling shaft 200 at the end, middle or other position of the first rotating member 30, the rolling shaft 200 can cooperate with the rolling groove 720 on the sliding part 72, thereby realizing that when the first rotating member 30 rotates relative to the base 10, the sliding part 72 and the bearing part 71 are driven to move up and down.

[0089] The present application will now describe in detail the components that cooperate with each other. Since most components are two in number, this embodiment will only describe the components that cooperate with each other in detail. Fig.14 and Fig.15 The components on the right side of the base 10 in the folding device 1 are schematically illustrated, and the same understanding can be applied to the components on the left side of the base 10 .

[0090] Please refer to Fig.19In this embodiment, the third rotation axis C3 between the first rotating member 30 and the base 10 and the first rotation axis C1 between the second rotating member 40 and the base 10 are parallel to each other. The third rotation axis C3 is farther away from the bottom surface 100 of the base 10 than the first rotation axis C1, and when the folding device 1 is in the unfolded state, the third rotation axis C3 is farther away from the connecting member 50 than the first rotation axis C1. In other words, the third rotation axis C3 is higher and further to the left than the first rotation axis C1, so in Fig.19 In the figure, the third rotation axis C3 is located at the upper left, and the first rotation axis C1 is located at the lower right. The first rotating member 30 moves in the form of rotation, which determines the position of the connecting member 50 during the movement. The second rotating member 40 moves in the form of rotation and sliding, which determines the angle of the connecting member 50 during the movement. The position and angle of the connecting member 50 are determined by the mutual cooperation between the first rotating member 30 and the second rotating member 40.

[0091] Specifically, when the first rotating member 30 and the second rotating member 40 rotate, the connecting member 50 can slide in a direction away from the base 10 when the folding device 1 is folded, based on the sliding of the connecting member 50 relative to the second rotating member 40. When the folding device 1 is unfolded, the connecting member 50 slides in a direction close to the base 10, which can further make the support member 60 move according to a preset trajectory, so that when the folding device 1 is in a folded state, the folding device 1 forms a water drop-shaped screen space 1a. In this way, no matter whether the folding device 1 is folded or unfolded, when the connecting member 50 rotates relative to the base 10, the first rotating member 30 and the second rotating member 40 are also driven to 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, driving the support member 60 rotatably connected to the connecting member 50 to slide relative to the second rotating member 40, changing the distance between the support member 60 and the base 10, and then realizing the subsequent movement process. In summary, in this embodiment, no new components need to be added, and the sliding of the connecting member 50 relative to the second rotating member 40 can be achieved only by designing the positions of the third rotating axis C3 and the first rotating axis C1 .

[0092] In this embodiment, the first rotating member 30 and the base 10 are connected by the first arc track and the first arc groove, the first arc track is provided at one of the first rotating member 30 and the base 10, and the first arc groove is provided at one of the first rotating member 30 and the base 10. The position of the third rotation axis C3 can be better adjusted by the first arc track and the first arc groove, so that the third rotation axis C3 and the first rotation axis C1 meet the above positional relationship.

[0093] In this embodiment, the second rotating member 40 and the base 10 are connected by the first rotating shaft and the first rotating hole, the first rotating shaft is provided at one of the second rotating member 40 and the base 10, and the first rotating hole is provided at the other of the second rotating member 40 and the base 10. It is worth noting that in this embodiment, the second rotating member 40 is the rotating member 20 mentioned above, so the first rotating shaft is the rotating shaft 111 mentioned above, and the first rotating hole is the rotating hole 201 mentioned above. The rotating shaft 111 and the rotating hole 201 have been described in detail above, and will not be described in detail in this embodiment.

[0094] In this embodiment, the first rotating member 30 and the connecting member 50 are connected through the second rotating shaft and the second rotating hole. The second rotating shaft is provided at one of the first rotating member 30 and the connecting member 50, and the second rotating hole is provided at the other of the first rotating member 30 and the connecting member 50.

[0095] Please refer to Fig.15 and Fig. 20 In this embodiment, the second rotating member 40 and the connecting member 50 are connected by means of a sliding block 42 and a sliding groove 52. The sliding block 42 is provided at one of the second rotating member 40 and the connecting member 50, and the sliding groove 52 is provided at the other of the second rotating member 40 and the connecting member 50. The connecting member 50 has a back surface 500 for facing away from the flexible screen, and the distance between the end of the sliding block 42 close to the base 10 and the back surface 500 is smaller than the distance between the end of the sliding block 42 away from the base 10 and the back surface 500.

[0096] The sliding block 42 is not arranged horizontally but 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 500. Since the sliding block 42 is arranged inclined, the sliding groove 52 is also arranged inclined to match the sliding block 42, and the distance between the end of the sliding groove 52 close to the base 10 and the back 500 is smaller than the distance between the end of the sliding groove 52 away from the base 10 and the back 500. When the folding device 1 is changed from the unfolded state to the folded state, the connecting member 50 slides relative to the second rotating member 40 in the direction away from the base 10. By designing the shapes of the sliding block 42 and the sliding groove 52, not only can the supporting member 60 be further moved according to the preset trajectory, but also when the folding device 1 is in the folded state, the folding device 1 forms a water drop-shaped screen space 1a. When the two connecting members 50 slide in the direction away from the base 10, the two connecting members 50 also approach each other, so that when the folding device 1 is in the folded state, the distance between the two connecting members 50 can be reduced, and the thickness of the folding device 1 in the folded state can be reduced. The two opposite ends of the flexible screen can also be made to abut against each other, thereby eliminating the gap between the two ends of the flexible screen when in a folded state, thereby improving the safety performance of the flexible screen and improving the appearance effect.

[0097] Please refer to Figure 21-23 In this embodiment, the support member 60 includes a support portion 61 and a rolling portion 62. The support portion 61 has a support surface 610 for supporting the flexible screen. The rolling portion 62 is disposed on a side of the support portion 61 away from the support 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 disposed on one of the second rotating member 40 and the rolling portion 62. The first rolling groove 620 is disposed on the other of the second rotating member 40 and the rolling portion 62. The first rolling groove 620 has a third limiting end 621 and a fourth limiting end 622 that are disposed opposite to each other. The third limiting end 621 is farther away from the base 10 than the fourth limiting end 622, and the third limiting end 621 is farther away from the support surface 610 than the fourth limiting end 622. Among them, when the folding device 1 is in the unfolded state, the first rolling axis 43 is positioned at the third limit end 621, and when the folding device 1 is in the folded state, the first rolling axis 43 is positioned at the fourth limit end 622. The third limit end 621 is farther away from the base 10 than the fourth limit end 622, and the third limit end 621 is farther away from the support surface 610 than the fourth limit end 622. In other words, the third limit end 621 is further to the right and lower than the fourth limit end 622, that is, the third limit end 621 is located at the lower right position, and the fourth 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 third limit end 621 to prevent the support member 60 from folding back and damaging the subsequent flexible screen. When the folding device 1 is in the folded state, the first rolling axis 43 is positioned at the fourth limit end 622 to prevent the support member 60 from folding back and damaging the subsequent flexible screen. 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.

[0098] The first rolling groove 620 also has a first connecting portion 623 connecting the third limiting end 621 and the fourth limiting end 622. The first connecting portion 623 protrudes in the direction away from the support surface 610, so that the position of the first rolling shaft 43 in the first rolling groove 620 can be controlled 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 teardrop shape in the folded state. In addition, the arc-shaped first rolling groove 620 can also make the rolling of the first rolling shaft 43 smoother, thereby improving the smoothness and stability of the movement of the folding device 1. Of course, in other embodiments, the shape of the first connecting portion 623 can also be a straight line, or other shapes, as long as the positions of the third limiting end 621 and the fourth limiting end 622 meet the above-mentioned positional relationship.

[0099] The first rolling groove 620 also has a second connecting portion 624 connecting the first connecting portion 623 and the third limiting end 621, and the extension direction of the second connecting portion 624 is parallel to the support surface 610. In the process of the folding device 1 from the unfolded state to the folded state, the first rolling shaft 43 does not move directly from the third limiting end 621 to the second connecting portion 624, but first moves to the second connecting portion 624, and then moves to the first connecting portion 623. In this way, when the folding device 1 is in the unfolded state, the horizontal second connecting portion 624 can be used to support the first rolling shaft 43, and the second connecting portion 624 can be used to achieve buffering, so as to prevent the first rolling shaft 43 from moving from the third limiting end 621 to the arc-shaped first connecting portion 623 by itself, thereby improving the stability of the folding device 1. In addition, the horizontally arranged second connecting portion 624 can also reduce the gap between the first rolling shaft 43 and the first rolling groove 620 to prevent the existence of a virtual position. In this embodiment, the support member 60 and the connecting member 50 are connected by 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.

[0100] In this embodiment, the first rotating member 30 and the support member 60 are connected by a constraint shaft and a constraint hole, the constraint shaft is provided on one of the first rotating member 30 and the support member 60, and the constraint hole is provided on the other of the first rotating member 30 and the support member 60. The constraint shaft and the constraint hole can cooperate with each other to prevent the folding device 1 from having movement deviation during movement, causing the support member 60 to rotate excessively relative to the first rotating member 30 and warp, which subsequently affects the folding of the flexible screen. In other words, in this embodiment, a virtual constraint 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 constraint shaft and the constraint hole do not affect the degree of freedom of the folding device 1.

[0101] In summary, the folding device 1 provided in this embodiment can cooperate with the sliding part 72 of the supporting member 70 through the first rotating member 30 and / or the second rotating member 40. When folding, the decorative member 74 moves downward to increase the size of the screen space 1a and improve the reliability of the flexible screen.

[0102] Please refer to Figure 24-25 The shell assembly 2 provided in this embodiment includes a first shell 91, a second shell 92, and a folding device 1 provided in the above embodiment of the present application, and the folding device 1 is connected between the first shell 91 and the second shell 92.

[0103] 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 the parts 71. For example, a flexible screen can be carried on the first housing 91 and the second housing 92, and functional modules such as batteries, PCB components, speakers, receivers, buttons, etc. can be set in the first housing 91 and the second housing 92. Therefore, the first housing 91 and the second housing 92 mainly play the role of installation and protection. In some embodiments, the surface of the first housing 91 and the second housing 92 can also serve as the appearance surface, so the surface of the first housing 91 and the second housing 92 can be designed accordingly, so that the first housing 91 and the second housing 92 have a unique appearance effect. This embodiment does not limit the parameters such as the shape, material, structure, etc. of the first housing 91 and the second housing 92, as long as the installation and protection functions can be achieved. For example, the material of the first housing 91 and the second housing 92 can be all metal, or all plastic, or partly metal and partly plastic. One connecting member 50 of the folding device 1 is connected to the first shell 91, and the other connecting member 50 is connected to the second shell 92, so that when the first shell 91 and the second shell 92 rotate, the two connecting members 50 are driven to rotate relative to the base 10, thereby realizing the subsequent movement process. For example, the movement of the first rotating member 30, the second rotating member 40, and the supporting member 60, and the relative movement of the first moving member and the second moving member provide damping for the movement of the shell assembly 2. Optionally, the shell and the connecting member 50 can be fixed by screws, buckles, or glue.

[0104] The shell assembly 2 provided in this embodiment can increase the screen capacity space 1a of the flexible screen in the folded state by adopting the folding device 1 provided in the above-mentioned embodiment of the present application, thereby improving the reliability of the flexible screen.

[0105] Please refer to Figure 26-Figure 27 The electronic device 3 provided in this embodiment includes a flexible screen 93 and a housing assembly 2 as provided in the above embodiment of the present application, and the flexible screen 93 is arranged on the same side of the first housing 91, the second housing 92, and the folding device 1. The electronic device 3 provided in this embodiment includes but is not limited to mobile terminals such as mobile phones, tablet computers, laptop computers, PDAs, personal computers (Personal Computers, PCs), personal digital assistants (Personal Digital Assistants, PDAs), portable media players (Portable Media Players, PMPs), navigation devices, wearable devices, smart bracelets, pedometers, and fixed terminals such as digital TVs and desktop computers, and only takes mobile phones as an example for schematic description.

[0106] The electronic device 3 includes a flexible screen 93 and a shell assembly 2. The flexible screen 93 is a component with a certain flexibility. Compared with a rigid component, 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 a flexible display screen, a flexible touch screen, and a flexible touch display screen, or a flexible component fixedly bonded with a flexible support plate, such as a flexible display screen and a flexible touch screen bonded with a flexible steel plate. The flexible screen 93 is arranged on the same side of the first shell 91 and the second shell 92 in the shell assembly 2, and can be bent or flattened with the shell assembly 2. Specifically, the flexible screen 93 has a flexible screen 93 in a bending area 930, and a flexible screen 93 in a non-bending area 931 arranged on opposite sides of the flexible screen 93 in the bending area 930. The flexible screen 93 in the bending area 930 is arranged corresponding to the support member 60 of the bonding and folding device 1, and the flexible screen 93 in the non-bending area 931 is fixedly arranged on the first shell 91 and the second shell 92. Since the flexible screen 93 of the bending area 930 is correspondingly attached to the support member 60 of the folding device 1, the shape of the folding device 1 changes when it moves, so it can drive the flexible screen 93 of the bending area 930 to bend as well, thereby bending or flattening with the movement of the electronic device 3. Since the flexible screen 93 of the non-bending area 931 is fixed on the first shell 91 and the second shell 92, the first shell 91 and the second shell 92 can only rotate relative to each other, and the shape itself will not change. Therefore, even if the first shell 91 and the second shell 92 rotate, the flexible screen 93 on the first shell 91 and the second shell 92 will not bend.

[0107] The electronic device 3 provided in this embodiment can increase the screen capacity space 1a of the flexible screen 93 in the folded state by adopting the shell assembly 2 provided in the above-mentioned embodiment of the present application, thereby improving the reliability of the flexible screen 93.

[0108] In the description of the present application, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0109] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0110] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated. It can be mechanically connected or electrically connected. It can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0111] The above describes the contents provided by the implementation methods of the present application in detail, and describes and illustrates the principles and implementation methods of the present application. These descriptions are only used to help understand the method and its core ideas of the present application. However, the contents of this specification should not be construed as limiting the present application, and those skilled in the art may make various changes and modifications to the present application without departing from the spirit and scope of the present application. These modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents.

Claims

1. A folding device, characterized in that: include: Pedestal; A rotating member, one end of which is rotatably connected to the base; as well as A bearing member, slidably and rotatably connected to one end of the rotating member; Among them, when the folding device is folded, the other end of the rotating member rotates along the bottom surface direction away from the base, and the supporting member moves along the bottom surface direction close to the base; when the folding device is unfolded, the other end of the rotating member rotates along the bottom surface direction close to the base, and the supporting member moves along the bottom surface direction away from the base.

2. The folding device according to claim 1, characterized in that: The supporting member includes a supporting portion having a supporting surface, and a sliding portion arranged on the side of the supporting portion away from the supporting surface, and the sliding portion is slidably and rotatably connected to one end of the rotating member; a first rotation axis between the rotating member and the base and a second rotation axis between the rotating member and the sliding portion are parallel to each other, and when the folding device is in an unfolded state, the first rotation axis is closer to the bottom surface of the base than the second rotation axis.

3. The folding device according to claim 2, characterized in that: The sliding part is slidably connected to the base, and a sliding direction of the sliding part relative to the base is perpendicular to the first rotation axis.

4. The folding device according to claim 2, characterized in that: The rotating member and the sliding part are connected by a rolling shaft and a rolling groove, the rolling shaft is provided at one of the rotating member and the sliding part, and the rolling groove is provided at the other of the rotating member and the sliding part; the rolling groove has a first limit end and a second limit end which are arranged opposite to each other, when the folding device is in the unfolded state, the first limit end is closer to the other end of the rotating member than the second limit end, and the rolling shaft is positioned at the first limit end, and when the folding device is in the folded state, the rolling shaft is positioned at the second limit end.

5. The folding device according to claim 4, characterized in that: The rolling groove further has a connecting portion connecting the first limiting end and the second limiting end, and the connecting portion is parallel to the bottom surface of the base.

6. The folding device according to claim 2, characterized in that: The base includes a first part, a second part and a connecting part connecting the first part and the second part, and two sliding parts are arranged at intervals on the side of the bearing part away from the bearing surface. The two sliding parts are arranged on opposite sides of the connecting part. Each sliding part is connected to the connecting part through a slider and a slide groove. The slider is arranged at one of the sliding part and the connecting part, and the slide groove is arranged at the other of the sliding part and the connecting part.

7. The folding device according to claim 1, characterized in that: The folding device includes two rotating members, which are respectively rotatably connected to opposite sides of the base and respectively slidably and rotatably connected to opposite sides of the supporting member. The two rotating members are configured to rotate in opposite directions synchronously with each other via the supporting member.

8. The folding device according to any one of claims 1 to 7, characterized in that: The folding device comprises: Two first rotating members are rotatably connected to opposite sides of the base respectively; Two second rotating members are rotatably connected to opposite sides of the base respectively; A connecting member, wherein one of the first rotating member and the second rotating member located 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 of which 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, and when the folding device is in an unfolded state, the two supporting members are located on opposite sides of the carrying member; Wherein, the rotating member is at least one of the first rotating member and the second rotating member.

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

10. An electronic device, characterized in that: The electronic device comprises a flexible screen and a housing assembly as claimed in claim 9, wherein the flexible screen is arranged on the same side of the first housing, the second housing and the folding device.

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