Folding shell and electronic equipment

Abstract

The invention provides a folding shell which comprises a folding assisting assembly, a frame body, a magnetic attraction assembly and a magnetic isolation mechanism, the folding assisting assembly comprises a base, a first rotating mechanism and a second rotating mechanism, and the first rotating mechanism and the second rotating mechanism are rotationally connected to the two opposite sides of the base respectively; the at least two frame bodies are arranged on the two opposite sides of the base respectively, one frame body is connected to the side, away from the base, of the first rotating mechanism, and the other frame body is connected to the side, away from the base, of the second rotating mechanism; the magnetic attraction assembly comprises magnetic attraction pieces arranged on at least two adjacent frame bodies respectively. The magnetism isolating mechanism comprises a magnetism isolating piece movably connected to the base, and the magnetism isolating piece is arranged between the base and the at least one frame body and comprises a magnetism isolating part; when the folding shell is in a flattened state, the magnetic isolation part shields a magnetic field of the magnetic attraction piece; when the folding shell is in a folded state, the magnetism isolating parts and the magnetic attraction pieces are staggered, so that the magnetic attraction pieces on the two frame bodies are attracted to each other. The invention further provides an electronic device provided with the folding shell.

Description

Technical Field

[0001] The present invention relates to the field of flexible screen support, and in particular to a folding shell and an electronic device provided with the folding shell. Background Art

[0002] At present, foldable electronic products with bendable flexible display screens are becoming more and more popular. In the prior art, foldable electronic products are convenient for users to use the flexible display screen in a flat state, and can be convenient for users to store in a folded state. In order to overcome the rebound force of the flexible display screen of the foldable electronic product in the folded state, magnets are generally provided in a pair of shells of the foldable electronic product. When the foldable electronic product is in a folded state, the magnets in a pair of shells are attracted to each other to maintain the foldable electronic product in a folded state. However, the magnets in the foldable electronic product are easy to absorb magnetic parts such as iron nails, iron particles, etc. in a flat state. When the foldable electronic product is folded, the magnetic parts absorbed on the flexible display screen may crush or damage the flexible display screen. Summary of the invention

[0003] The present application provides a folding housing and an electronic device provided with the folding housing.

[0004] The present application provides a folding shell, which includes a folding-assisting component, a frame, a magnetic attraction component and a magnetic isolation mechanism. The folding-assisting component includes a base, a first rotating mechanism and a second rotating mechanism. The first rotating mechanism is rotatably connected to one side of the base, and the second rotating mechanism is rotatably connected to the other side of the base. The first rotating axis of the first rotating mechanism and the base is parallel to the second rotating axis of the second rotating mechanism and the base; at least two frames are respectively arranged on opposite sides of the base, and one of the frames is connected to the first rotating mechanism away from the base. one side of the second rotating mechanism, and the other frame is connected to a side of the second rotating mechanism away from the base; the magnetic attraction component includes magnetic attraction parts respectively arranged on at least two adjacent frames; the magnetic isolation mechanism includes a magnetic isolation part movably connected to the base, the magnetic isolation part is arranged between the base and at least one of the frames, and the magnetic isolation part includes a magnetic isolation part away from the base; when the folding shell is in a flattened state, the magnetic isolation part shields the magnetic field of the magnetic attraction part; when the folding shell is in a folded state, the magnetic isolation part and the magnetic attraction part are misaligned, so that the magnetic attraction parts on the two frames are adsorbed to each other.

[0005] The present application also provides an electronic device, which includes a flexible screen and a folding shell, wherein the flexible screen is arranged on the folding shell.

[0006] The folding shell of the electronic device of the present application includes a folding device and a frame connected to the opposite sides of the folding device, and magnetic suction parts are respectively provided on the two frames. A magnetic isolation part is provided between the folding device and the frame. When the electronic device is in a flattened state, the magnetic isolation part shields the magnetic field of the corresponding magnetic suction part to prevent the magnetic suction part from absorbing impurities such as iron nails and iron particles, thereby avoiding the impurities from crushing or damaging the flexible screen when the electronic device is folded; when the folding shell is in a folded state, the magnetic isolation part is away from the magnetic suction part, and the magnetic isolation part does not shield the magnetic field of the corresponding magnetic suction part, so that the magnetic suction parts on the two frames are adsorbed on each other, so that the folding shell maintains a stable and completely folded state. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0008] Figure 1 is a schematic diagram of a three-dimensional structure of an electronic device in one embodiment of the present application;

[0009] Figure 2 yes Figure 1 A schematic diagram of a three-dimensional structure decomposition of a foldable housing and a flexible screen of an electronic device;

[0010] Figure 3 yes Figure 2 A schematic diagram of the three-dimensional structure of the folded shell;

[0011] Figure 4 yes Figure 3 A schematic diagram of a three-dimensional structure decomposition of the folding device;

[0012] Figure 5 yes Figure 4 A schematic diagram of the three-dimensional structure of the bendable component;

[0013] Figure 6 yes Figure 4 A schematic diagram of the three-dimensional structure of the folding aid component and the back shell;

[0014] Figure 7 yes Figure 6 A schematic diagram of a further three-dimensional structural decomposition of the folding aid component;

[0015] Figure 8 yes Figure 7 A schematic diagram of the three-dimensional structure of the folding aid component from another perspective;

[0016] Fig. 9 yes Figure 7An enlarged view of the magnetic isolation mechanism and the first base;

[0017] Fig.10 yes Fig. 9 A schematic diagram of a three-dimensional structure of the magnetic isolation mechanism and the first base from another perspective;

[0018] Fig.11 yes Fig.10 A schematic diagram of the three-dimensional structure of the folding aid component;

[0019] Fig.12 yes Fig.11 A schematic diagram of the three-dimensional structure of the folding aid component from another perspective;

[0020] Fig.13 yes Fig.11 A schematic diagram of a further three-dimensional structural decomposition of the folding aid component;

[0021] Fig.14 yes Fig.12 A schematic diagram of a further three-dimensional structural decomposition of the folding aid component;

[0022] Fig.15 yes Fig.13 A schematic diagram of the three-dimensional structural assembly of the folding aid component;

[0023] Fig.16 yes Fig.15 A three-dimensional cross-sectional view of the folding aid component;

[0024] Fig.17 yes Fig.15 Another three-dimensional cross-sectional view of the folding aid component in FIG.

[0025] Fig.18 yes Fig.15 Another three-dimensional cross-sectional view of the folding aid in FIG.

[0026] Fig.19 yes Figure 2 A three-dimensional cross-sectional view of the folding shell in FIG.

[0027] Fig. 20 yes Fig.19 A partial enlarged view of the folded shell in FIG.

[0028] Fig.21 yes Fig.19 A cross-sectional view of a folded shell in FIG.

[0029] Fig. 22 yes Figure 1 A schematic diagram of a three-dimensional structure of an electronic device in a folded state;

[0030] Fig.23 yes Fig. 22 A schematic diagram of the three-dimensional structure of the electronic device in FIG.

[0031] Fig.24 yes Fig. 22 One of the three-dimensional cross-sectional views of the electronic device in;

[0032] Fig.25 yes Fig.24 A cross-sectional view of an electronic device in FIG.

[0033] Fig.26 yes Fig.24 A partial enlarged view of an electronic device in FIG.

[0034] Fig. 27 It is a schematic diagram of the front structure of a foldable shell in another embodiment of the present application. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] In addition, the following descriptions of the various embodiments are made with reference to the attached drawings to illustrate specific embodiments that the present application may be implemented in. Directional terms mentioned in the present application, such as "upper", "lower", "front", "back", "left", "right", "inner", "outer", "side", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the present application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0037] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set on..." should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] Please also read Figures 1 to 4, an electronic device 100 in one embodiment of the present invention includes a folding housing 20 and a flexible screen 30 disposed on the folding housing 20. The folding housing 20 includes two frames 21 and a folding device 50 disposed between the two frames 21, the two frames 21 are respectively connected to opposite sides of the folding device 50, and the flexible screen 30 is disposed on the front of the two frames 21 and the front of the folding device 50. The flexible screen 30 includes a bendable area 31 corresponding to the folding device 50, and two non-bending areas 33 connected to opposite sides of the bendable area 31. The folding device 50 is used to support the bendable area 31 of the flexible screen 30. The flexible screen 30 can be bent or flattened with the folding device 50, and the bendable area 31 can be bent to form a U-shape or a teardrop shape or other shapes. In this embodiment, the bendable area 31 can be bent into a teardrop shape. The folding device 50 includes a folding-assisting component 51, a bendable component 52 connected to the folding-assisting component 51, a magnetic component 53 and a magnetic isolation mechanism 58. The folding-assisting component 51 includes a base 54, a rotating mechanism, a linkage mechanism 56 and a limiting mechanism 57; the rotating mechanism includes a first rotating mechanism 550 rotatably connected to one side of the base 54 and a second rotating mechanism 555 rotatably connected to the other side of the base 54. The first rotating mechanism 550 and the first rotating axis L1 of the base 54 are spaced and parallel to the second rotating axis L2 of the second rotating mechanism 555 and the base 54; two frames 21 are respectively arranged on opposite sides of the base 54, one frame 21 is connected to the side of the first rotating mechanism 550 away from the base 54, and the other frame 21 is connected to the side of the second rotating mechanism 555 away from the base 54; the magnetic component 5 3 includes magnetic attracting members respectively arranged on the two frames 21, that is, the two frames are respectively provided with at least one magnetic attracting member; the magnetic isolation mechanism 58 includes a magnetic isolation member 581 movably connected to the base 54, the magnetic isolation member 581 is arranged between the base 54 and at least one frame 21, and the magnetic isolation member 581 includes a magnetic isolation portion 5811 away from the base 54; when the folding shell 20 is in a flattened state, the magnetic isolation portion 5811 shields the magnetic field of the corresponding magnetic attracting member to prevent the magnetic attracting member from absorbing impurities such as iron nails and iron particles, thereby avoiding damage to the flexible screen 30 when the electronic device 100 is folded; when the folding shell 20 is in a folded state, the magnetic isolation portion 5811 is misaligned with the corresponding magnetic attracting member, so that the magnetic attracting members on the two frames are mutually attracted to overcome the bending rebound force of the bendable area 31 of the flexible screen 30, so that the electronic device 100 maintains a stable and completely folded state.

[0039] Specifically, the magnetic attraction member includes at least one first magnetic attraction member 531 disposed on one of the frames 21 and at least one second magnetic attraction member 533 disposed on the other frame 21, and the magnetic isolation portion 5811 can cover or be away from the first magnetic attraction member 531 or the second magnetic attraction member 533. When the folding shell 20 is in a flattened state, the magnetic isolation portion 5811 shields the magnetic field of the first magnetic attraction member 531 or the second magnetic attraction member 533; when the folding shell 20 is in a folded state, the magnetic isolation portion 5811 is away from the first magnetic attraction member 531 and the second magnetic attraction member 533, so that the first magnetic attraction member 531 and the second magnetic attraction member 533 can be attracted to each other. In this embodiment, one of the frames 21 is provided with first magnetic components 531 on opposite sides of one end away from the folding-assisting component 51, and the other frame 21 is provided with two second magnetic components 533 on one end away from the folding-assisting component 51. Folding-assisting components 51 are provided on opposite sides of the back of the bendable component 52. A magnetic isolation mechanism 58 is provided between the base 54 of each folding-assisting component 51 and the two frames 21, and the magnetic isolation parts 5811 of the magnetic isolation mechanism 58 on opposite sides of each base 54 are used to shield the first magnetic component 531 and the second magnetic component 533, respectively. When the folding shell 20 is in a flattened state, the magnetic isolation parts 5811 on the opposite sides of the base 54 respectively shield the first magnetic component 531 and the second magnetic component 533; when the folding shell 20 is in a folded state, the magnetic isolation parts 5811 on the opposite sides of the base 54 respectively stay away from the first magnetic component 531 and the second magnetic component 533, so that the first magnetic component 531 and the second magnetic component 533 are attracted to each other to overcome the bending rebound force of the bendable area 31 of the flexible screen 30, so that the electronic device 100 maintains a stable fully folded state.

[0040] In some embodiments, the number of folding-assisting components 51 on the back side of the bendable component 52 is one, the first rotating mechanism 550 of the folding-assisting component 51 is connected to one of the frames 21 at a side away from the base 54, and the second rotating mechanism 555 of the folding-assisting component 51 is connected to the other frame 21 at a side away from the base 54; a first magnetic component 531 is provided on one of the frames 21, a second magnetic component 533 is provided on the other frame 21, and magnetic isolation components 581 are respectively provided between the base 54 and the two frames 21. When the folding shell 20 is in a flattened state, the magnetic isolation parts 5811 of the two magnetic isolation parts 581 respectively shield the magnetic fields of the first magnetic component 531 and the second magnetic component 533 to prevent the first magnetic component 531 and the second magnetic component 533 from absorbing impurities such as iron nails and iron particles; when the folding shell 20 is in a folded state, the magnetic isolation parts 5811 of the two magnetic isolation parts 581 respectively stay away from the first magnetic component 531 and the second magnetic component 533 to make the first magnetic component 531 and the second magnetic component 533 adsorb to each other to overcome the bending rebound force of the bendable area 31 of the flexible screen 30, so that the electronic device 100 maintains a stable fully folded state.

[0041] In some embodiments, the number of folding-assisting components 51 on the back side of the bendable component 52 can be three or more, and the three or more folding-assisting components 51 are arranged along the direction of the first rotation axis L1. The first rotating mechanism 550 on one side of the three or more folding-assisting components 51 is connected to one of the frames 21, and the second rotating mechanism 555 on the other side of the three or more folding-assisting components 51 is connected to the other frame 21. Three or more first magnetic components 531 are provided on one frame 21, and three or more second magnetic components 533 are provided on the other frame 21. Magnetic isolation components 581 are respectively provided on the opposite sides of the base 54 of each folding-assisting component 51. When the folding shell 20 is in a flattened state, the magnetic shielding parts 5811 of the three or more magnetic shielding members 581 on one side of the base 54 respectively shield the magnetic field of the three or more first magnetic attracting members 531 on one of the frames 21, and the magnetic shielding parts 5811 of the three or more magnetic shielding members 581 on the other side of the base 54 respectively shield the magnetic field of the three or more second magnetic attracting members 533 on the other frame 21 to prevent the first magnetic attracting members 531 and the second magnetic attracting members 533 from absorbing impurities such as iron nails and iron particles. When the folding shell 20 is in a folded state, the base 54 The magnetic isolation parts 5811 of three or more magnetic isolation parts 581 on one side are respectively away from the magnetic field of three or more first magnetic suction parts 531 on one of the frames 21, and the magnetic isolation parts 5811 of three or more magnetic isolation parts 581 on the other side of the base 54 are respectively away from the magnetic field of three or more second magnetic suction parts 533 on the other frame 21, so that the first magnetic suction parts 531 and the corresponding second magnetic suction parts 533 are attracted to each other, overcoming the bending rebound force of the bendable area 31 of the flexible screen 30, so that the electronic device 100 maintains a stable fully folded state.

[0042] In this embodiment, the front side refers to the side facing the same direction as the light emitting surface of the flexible screen 30, and the back side refers to the side facing away from the light emitting surface of the flexible screen 30. The electronic device 100 is, for example, but not limited to, a mobile phone, a tablet computer, a display, a liquid crystal panel, an OLED panel, a television, a smart watch, a VR head-mounted display, a car display, and any other product and component with a display function. The "connection" in the description of the embodiment of the present invention includes two situations: direct connection and indirect connection. For example, the connection between A and B includes A and B being directly connected or connected through a third element C or more other elements. The connection also includes two situations: integrated connection and non-integrated connection. The integrated connection means that A and B are formed and connected as one, and the non-integrated connection means that A and B are formed and connected as a non-integrated connection.

[0043] The folding shell 20 of the electronic device 100 of the present invention includes a folding device 50 and a frame 21 connected to the opposite sides of the folding device 50. Magnetic elements are respectively provided on the two frames 21. A magnetic isolation member 581 is provided between the folding device 50 and the frame 21. When the electronic device 100 is in a flattened state, the magnetic isolation portion 5811 shields the magnetic field of the corresponding magnetic element to prevent the magnetic element from absorbing impurities such as iron nails and iron particles, thereby preventing the impurities from crushing or damaging the flexible screen 30 when the electronic device 100 is folded; when the folding shell 20 is in a folded state, the magnetic isolation portion 5811 is away from the magnetic element, and the magnetic isolation portion 5811 does not shield the magnetic field of the corresponding magnetic element, so that the magnetic elements on the two frames are adsorbed on each other to overcome the bending rebound force of the bendable area 31 of the flexible screen 30, so that the electronic device 100 maintains a stable and completely folded state.

[0044] Please also read Figure 4-Figure 14The first rotating mechanism 550 includes a first rotating member 551 and a first connecting member 552 connected to the first rotating member 551, and the second rotating mechanism 555 includes a second rotating member 556 and a second connecting member 557 connected to the second rotating member 556. One end of the first rotating member 551 away from the first connecting member 552 and one end of the second rotating member 556 away from the second connecting member 557 are rotatably connected to opposite sides of the base 54. In this embodiment, the base 54 includes a first base body 541 and a second base body 544 that are interlocked with each other. One end of the first rotating member 551 away from the first connecting member 552 and one end of the second rotating member 556 away from the second connecting member 557 are rotatably connected between the first base body 541 and the second base body 544. The linkage mechanism 56 includes two rotating shafts 561 rotatably connected to the base 54, a first connecting rod 562, a second connecting rod 563 and a gear combination 564, the axis of the rotating shaft 561 is parallel to the first rotating axis L1, the first connecting rod 562 and the second connecting rod 563 are respectively connected to the two rotating shafts 561, the gear combination 564 is arranged between the first connecting rod 562 and the second connecting rod 563, the first connecting rod 562 is slidably connected to the first connecting member 552, and the second connecting rod 563 is slidably connected to the second connecting member 557. The bendable component 52 includes a middle support hinge 521, a first side support hinge 523 and a second side support hinge 525 connected to opposite sides of the middle support hinge 521, the first side support hinge 523 is movably connected to the first rotating mechanism 550 and the first connecting rod 562, the second side support hinge 525 is movably connected to the second rotating mechanism 555 and the second connecting rod 563, and the back of the flexible screen 30 is attached to the front of the middle support hinge 521, the first side support hinge 523 and the second side support hinge 525. The first rotating mechanism 550 and / or the second rotating mechanism 555 rotate relative to the base 54 to drive the first side support hinge 523 and the second side support hinge 525 to rotate synchronously relative to the base 54 through the linkage mechanism 56, so as to realize the synchronous unfolding or synchronous bending of the bendable component 52, that is, to realize the synchronous folding or synchronous unfolding of the folding device 50. During the folding or unfolding process of the folding device 50, the first rotating mechanism 550 and the first connecting rod 562 both rotate relative to the base 54, and the first connecting rod 562 slides relative to the first rotating mechanism 550. At the same time, the second rotating mechanism 555 and the second connecting rod 563 both rotate relative to the base 54, and the second connecting rod 563 slides relative to the second rotating mechanism 555.

[0045] In this embodiment, the first rotating member 551 and the first connecting member 552 are rotatably connected via the first rotating shaft 5501, the second rotating member 556 and the second connecting member 557 are rotatably connected via the second rotating shaft 5551, the axis of the first rotating shaft 5501 is parallel to the axis of the second rotating shaft 5551, and the axis of the first rotating shaft 5501 is parallel to the first rotating axis L1.

[0046] like Figures 4 to 6 As shown, the middle support hinge 521 includes a first hinge body 5210 in a strip shape and a back shell 5215 connected to the back of the first hinge body 5210. The first hinge body 5210 includes a front side and a back side 5211 facing away from the front side. The back side 5211 of the first hinge body 5210 is provided with a first connection area 5212 for positioning on the front side of the folding aid component 51. In this embodiment, the first connection areas 5212 are respectively provided at opposite ends of the back side 5211 of the first hinge body 5210, and the two folding aid components 51 are respectively connected to the two first connection areas 5212. The back shell 5215 is a strip shell, and the front side of the cover body 2518 is provided with connection spaces 5216, and the two folding aid components 51 are respectively accommodated in the two connection spaces 5216; the cover body 2518 is provided with a plurality of connection posts 5217 on the inner surface of the connection space 5216, and each connection post 5217 is provided with a connection hole 5218 on the front side. The first side support hinge 523 includes a strip-shaped second hinge body 5230 and a second connection area 5232 disposed on the back side 5231 of the second hinge body 5230. In this embodiment, the back side 5231 of the second hinge body 5230 is provided with two second connection areas 5232, the two second connection areas 5232 are located at opposite ends of the second hinge body 5230, and the second connection areas 5232 are used to connect the corresponding first rotating mechanism 550 and the first connecting rod 562. The second side support hinge 525 includes a strip-shaped third hinge body 5250 and a third connection area 5252 disposed on the back side 5251 of the third hinge body 5250. In this embodiment, the back side 5251 of the third hinge body 5250 is provided with two third connection areas 5252, the two third connection areas 5252 are located at opposite ends of the third hinge body 5250, and the third connection areas 5252 are used to connect the corresponding second rotating mechanism 555 and the second connecting rod 563.

[0047] Each second connection area 5232 includes a pair of first connection parts 5233 and a second connection part 5236 spaced apart from each other, the first connection part 5233 is arranged on a side away from the middle support hinge 521, and the second connection part 5236 is arranged on a side close to the middle support hinge 521. In this embodiment, each second connection part 5236 is located between the corresponding pair of first connection parts 5233. Each pair of first connection parts 5233 is provided with a pair of first rotation grooves 5234 in an arc shape, and the axes of the pair of first rotation grooves 5234 are collinear. The second connection part 5236 is provided with an arc-shaped first adjustment groove 5237, and the middle part of the first adjustment groove 5237 is bent toward the side away from the second hinge body 5230. The first adjustment groove 5237 includes a first positioning section 5237a and a second positioning section 5237b located at opposite ends thereof, and the first positioning section 5237a is closer to the middle support hinge 521 than the second positioning section 5237b. Each third connection area 5252 includes a pair of third connection parts 5253 and a fourth connection part 5256 spaced apart from each other, the third connection part 5253 is arranged on a side away from the middle support hinge 521, and the fourth connection part 5256 is arranged on a side close to the middle support hinge 521. In this embodiment, each fourth connection part 5256 is located between the corresponding pair of third connection parts 5253. Each pair of third connection parts 5253 is provided with a pair of arc-shaped second rotation grooves 5254, and the axes of the pair of second rotation grooves 5254 are collinear. The fourth connection part 5256 is provided with an arc-shaped second adjustment groove 5257, and the middle part of the second adjustment groove 5257 is bent toward the side away from the third hinge body 5250. The second adjustment groove 5257 includes a third positioning section 5257a and a fourth positioning section 5257b located at opposite ends thereof, and the third positioning section 5257a is closer to the middle support hinge 521 than the fourth positioning section 5257b.

[0048] like Figure 7-10As shown, the magnetic shielding member 581 and the base 54 are slidably connected through a guide groove and a sliding part. The guide groove is provided in one of the base 54 and the magnetic shielding member 581, and the sliding part is provided in the other of the base 54 and the magnetic shielding member 581. The sliding part can move along the guide groove so that the magnetic shielding part 5811 can cover or move away from the magnetic attraction member 533. In this embodiment, a guide groove 5440 is provided on the base 54, and the end of the magnetic shielding member 581 away from the magnetic shielding part 5811 is connected to the sliding part 5830, and the sliding part 5830 can move along the guide groove 5440. Specifically, the guide grooves 5440 are respectively provided on the opposite sides of the end of the second base 544 away from the first base 541, and the magnetic shielding mechanisms 58 are respectively provided on the opposite sides of the second base 544. The end of the magnetic shielding member 581 of each magnetic shielding mechanism 58 away from the magnetic shielding part 5811 is slidably connected to the corresponding guide groove 5440 through the sliding part 5830. When the two frames 21 rotate relative to the base 54 and fold or unfold each other, the sliding part 5830 slides along the corresponding guide groove 5440 to drive the corresponding magnetic isolation part 581 to slide relative to the frame 21, so that the magnetic isolation part 5811 moves away from the corresponding magnetic attraction part to uncover the magnetic attraction part, or moves close to the corresponding magnetic attraction part to cover the magnetic attraction part.

[0049] Optionally, the guide groove 5440 includes a first positioning end 5440a and a second positioning end 5440b located at opposite ends thereof. When the folding shell 20 is in a flattened state, the sliding portion 5830 is positioned at the first positioning end 5440a, and the magnetic isolation portion 5811 covers and shields the magnetic field of the corresponding magnetic attraction component; when the folding shell 20 is in a folded state, the sliding portion 5830 is positioned at the second positioning end 5440b, and the magnetic isolation portion 5811 is away from and uncovers the corresponding magnetic attraction component to expose the magnetic attraction component. When the folding shell 20 is bent from a flat state to a folded state, the sliding part 5830 moves from the first positioning end 5440a to the second positioning end 5440b along the corresponding guide groove 5440, and the magnetic isolation part 5811 gradually moves away from the corresponding magnetic attraction component until the magnetic attraction component is exposed; when the folding shell 20 is unfolded from a folded state to a flat state, the sliding part 5830 moves from the second positioning end 5440b to the first positioning end 5440a along the corresponding guide groove 5440, and the magnetic isolation part 5811 gradually approaches the corresponding magnetic attraction component until the magnetic isolation part 5811 shields the magnetic attraction component.

[0050] The base 54 includes a support portion 5441, a guide groove 5440 is provided in the support portion 5441, and the magnetic isolation mechanism 58 also includes a connecting member 583 connected to the end of the magnetic isolation member 581 away from the magnetic isolation portion 5811, and the connecting member 583 includes a sliding portion 5830 slidably accommodated in the guide groove 5440. During the folding process of the folding shell 20, the connecting member 583 moves from the first positioning end 5440a to the second positioning end 5440b along the guide groove 5440, so that the magnetic isolation portion 5811 gradually moves away from the magnetic attraction member; during the flattening process of the folding shell 20, the connecting member 583 moves from the second positioning end 5440b to the first positioning end 5440a along the guide groove 5440, so that the magnetic isolation portion 5811 gradually covers the magnetic attraction member. In this embodiment, the second seat body 544 is provided with supporting portions 5441 on opposite sides of the end away from the first seat body 541, and the two supporting portions 5441 are provided with guide grooves 5440 respectively. Optionally, the two guide grooves 5440 are symmetrical about the center line of the second seat body 544; the sliding portion 5830 is a cylindrical sliding rod, one end of which is fixedly connected to one end of the magnetic isolation member 581 away from the magnetic isolation portion 5811, and the other end of the sliding rod is slidably connected to the support portion 5441.

[0051] Optionally, the support portion 5441 is an arc-shaped support sheet, the first end of the support sheet is connected to the front of the base 54, the second end of the support sheet is bent toward the back side of the base 54, the guide groove 5440 extends along the bending direction of the support sheet, the first positioning end 5440a of the guide groove 5440 is close to the second end of the support sheet, and the second positioning end 5440b of the guide groove 5440 is close to the first end of the support sheet. In this embodiment, support sheets are respectively provided on the opposite sides of the end of the second base 544 away from the first base 541, and the two support sheets are respectively provided with guide grooves 5440, the first end of each support sheet is fixedly connected to the second base 544, and the second end of each support sheet is gradually bent toward the back side of the second base 544. The support portion 5441 can be connected to the second base 544 by means of snap connection, adhesive connection, screw connection, etc., or the support portion 5441 and the second base 544 can also be connected by integral molding.

[0052] Optionally, the connecting member 583 further includes a stopper 5832 connected to the sliding portion 5830, the stopper 5832 slidably fits the side of the supporting portion 5441 away from the magnetic isolation member 581, and one end of the sliding portion 5830 away from the stopper 5832 is connected to the magnetic isolation member 581. The length of the stopper 5832 along the width direction parallel to the guide groove 5440 is greater than the width of the guide groove 5440 to prevent the connecting member 583 from being separated from the guide groove 5440. The stopper 5832 can be, but is not limited to, an arc plate, a rectangular plate, a circular plate, etc. In this embodiment, the stopper 5832 is an arc plate, and the stopper 5832 includes an arc-shaped guide sliding surface 5833, one end of the sliding portion 5830 is connected to the guide sliding surface 5833, and the guide sliding surface 5833 slidably contacts the surface of the supporting portion 5441 away from the magnetic isolation member 581, so as to facilitate the movement of the connecting member 583 along the guide groove 5440. Optionally, the connecting member 583 further includes a fixing portion 5835 connected to the end of the sliding portion 5830 away from the stopper portion 5832, and the fixing portion 5835 is connected to the end of the magnetic isolation member 581 away from the magnetic isolation portion 5811; specifically, the end of the magnetic isolation member 581 away from the magnetic isolation portion 5811 is provided with a fixing hole 5812, and the fixing portion 5835 is snap-fitted into the fixing hole 5812. In some embodiments, the fixing portion 5835 can also be fixedly connected to the end of the magnetic isolation member 581 away from the magnetic isolation portion 5811 by means of, but not limited to, screw connection, adhesive connection, etc. In some embodiments, the fixing portion 5835 is connected to the magnetic isolation member 581 by integral molding.

[0053] In some embodiments, the connecting member 583 in the magnetic isolation mechanism 58 can be omitted, and the end of the magnetic isolation member 581 away from the magnetic isolation portion 5811 is directly slidably accommodated in the guide groove 5440. Specifically, the magnetic isolation member 581 also includes a connecting portion 5813 connected to the magnetic isolation portion 5811, and the end of the connecting portion 5813 away from the magnetic isolation portion 5811 can move along the guide groove 5440.

[0054] Optionally, the connecting portion 5813 of the magnetic isolation member 581 includes a first sliding section 5814 connected to the magnetic isolation member 5811, a first connecting section 5815 connected to one end of the first sliding section 5814 away from the magnetic isolation member 5811, a second sliding section 5816 connected to one end of the first connecting section 5815 away from the first sliding section 5814, and a second connecting section 5817 connected to one end of the second sliding section 5816 away from the second sliding section 5816. The second connecting section 5817 is connected to the connecting member 583, and the fixing hole 5812 is provided in the second connecting section 5817. In this embodiment, the magnetic isolation portion 5811 is a rectangular sheet, the first sliding section 5814, the first connecting section 5815, the second sliding section 5816 and the second connecting section 5817 are all rectangular bars, the first sliding section 5814 is parallel to the second sliding section 5816, the first connecting section 5815 is parallel to the second connecting section 5817, and the first connecting section 5815 is perpendicular to the first sliding section 5814 and the second sliding section 5816.

[0055] like Figure 2-Figure 4 As shown, the frame 21 is provided with a guide groove 210, and the connecting portion 5813 is slidably accommodated in the guide groove 210. Specifically, the frame 21 includes a front face 211, a back face, two opposite side faces 214 and two end faces 215, the hinge device 22 is connected between two adjacent end faces 215 of the two frames 21, the bendable area 31 of the flexible screen 30 is attached to the front face of the hinge device 22, and the non-bending area 33 of the flexible screen 30 is connected to the front face 211 of the frame 21. The guide grooves 210 are respectively provided on opposite sides of the front face 211 of the frame 21, and the first sliding sections 5814 of the two magnetic isolation members 581 are respectively slidably accommodated in the two guide grooves 210 of each frame 21. A mounting groove 216 is provided at one end of the front face 211 of each frame 21 near the rotating shaft device 22. The mounting groove 216 passes through the front face 211 of the frame 21. The opposite ends of the mounting groove 216 extend to the opposite side faces 214 near the frame 21. One end of the guide groove 210 passes through the mounting groove 216. The first connecting section 5815, the second sliding section 5816 and the second connecting section 5817 of the magnetic isolation member 581 are accommodated in the mounting groove 216. The opposite sides of the rotating shaft device 22 are accommodated in the mounting grooves 216 of the two frames 21, that is, the side of the first rotating mechanism 550 away from the middle support hinge 521 is connected to the mounting groove 216 of one of the frames 21, and the side of the second rotating mechanism 555 away from the middle support hinge 521 is connected to the mounting groove 216 of the other frame 21. Specifically, a plurality of countersunk holes are provided on the back of the frame 21 near the rotating shaft device 22, each countersunk hole is connected to the mounting slot 216, and the plurality of countersunk holes are arranged along the length direction of the mounting slot 216. The locking piece passes through the countersunk holes and is connected to the first rotating mechanism 550 and the second rotating mechanism 555. A plurality of receiving spaces (not shown) are provided on the back of the frame 21, and the receiving spaces are used to install electronic components such as circuit boards and batteries.

[0056] Optionally, the front side 211 of the frame 21 is provided with a positioning groove 2112 and a receiving groove 2114 which are interconnected, the magnetic attraction member is positioned in the positioning groove 2112, the receiving groove 2114 is connected to the corresponding guide groove 210, and the magnetic isolation portion 5811 is slidably accommodated in the receiving groove 2114. When the folding shell 20 is in a flattened state, the magnetic isolation portion 5811 covers the positioning groove 2112, and when the folding shell 20 is in a folded state, the magnetic isolation portion 5811 uncovers the positioning groove 2112. In this embodiment, the front side 211 of each frame 21 is provided with a positioning groove 2112 and a receiving groove 2114 on opposite sides away from one end of the bendable component 52, one end of the two positioning grooves 2112 is respectively connected to the two guide grooves 210, and the other end of the two positioning grooves 2112 is respectively connected to the two positioning grooves 2112. In this embodiment, the two first magnetic members 531 are respectively positioned at the two positioning grooves 2112 of one frame body 21 , and the two second magnetic members 533 are respectively positioned at the two positioning grooves 2112 of the other frame body 21 .

[0057] The magnetic member is a permanent magnet or an electromagnet. In this embodiment, the first magnetic member 531 of one frame 21 is a permanent magnet, and the second magnetic member 533 of the other frame 21 is a permanent magnet. When the two frames 21 are in the folded state, the polarity of the first magnetic member 531 is opposite to the polarity of the corresponding second magnetic member 533, so that the first magnetic member 531 and the second magnetic member 533 are attracted to each other.

[0058] In some embodiments, the magnetic isolation mechanism 58 for shielding the magnetic field of the first magnetic attraction member 531 or the magnetic isolation mechanism 58 for shielding the magnetic field of the second magnetic attraction member 533 can be omitted. Specifically, if the first magnetic attraction member 531 is a magnetic body provided in one of the frames 21, and the second magnetic attraction member 533 is a magnetic body provided in the other frame 21, the magnetic body has magnetic conductivity but does not generate a magnetic field by itself, such as the magnetic body can be but not limited to an iron body, etc., and the magnetic body can generate a magnetic field, such as the magnetic body can be but not limited to a permanent magnet, etc. At this time, it is only necessary to set the magnetic isolation mechanism 58 to shield the magnetic body. When the folding shell 20 is in a flattened state, the magnetic isolation portion 5811 shields the magnetic field of the magnetic body, and when the folding shell 20 is in a folded state, the magnetic isolation portion 5811 is away from the magnetic body, so that the magnetic body and the magnetic body are mutually adsorbed, so that the folding shell 20 maintains a stable and fully folded state.

[0059] In some embodiments, the first magnetic attraction member 531 of one of the frames 21 is a permanent magnet, and the second magnetic attraction member 533 of the other frame 21 is an iron body. A magnetic isolation mechanism 58 is provided between the one of the frames 21 and the base 54. The magnetic isolation portion 5811 of the magnetic isolation mechanism 58 is used to shield the magnetic field of the permanent magnet on the one of the frames 21 or to release the shielding of the permanent magnet. Since the iron body has no magnetic attraction, it is not necessary to cover the magnetic isolation portion on the iron body, that is, the magnetic isolation mechanism 58 is omitted between the other frame 21 and the base 54. Specifically, when the two frames 21 are in an unfolded state, the magnetic isolation portion 5811 of the magnetic isolation mechanism 58 covers the permanent magnet on the one of the frames 21; when the two frames 21 are in a folded state, the magnetic isolation portion 5811 of the magnetic isolation mechanism 58 is away from the permanent magnet on the one of the frames 21, so that the permanent magnet is exposed, so that the permanent magnet and the iron body can be attracted to each other.

[0060] Please also read Figure 7-Figure 8 and Figure 11-Figure 14The first rotating member 551 is rotatably connected to the base 54 through the cooperation of the first circular arc track and the first circular arc groove. The axis of the first circular arc groove is collinear with the first rotation axis L1 between the first rotating member 551 and the base 54. The first circular arc groove is provided in one of the base 54 and the first rotating member 551, and the first circular arc track is provided in the other of the base 54 and the first rotating member 551. The second rotating member 556 is rotatably connected to the base 54 through the cooperation of the second circular arc track and the second circular arc groove. The axis of the second circular arc groove is collinear with the second rotation axis L2 between the second rotating member 556 and the base 54. The second circular arc groove is provided in one of the base 54 and the second rotating member 556, and the second circular arc track is provided in the other of the base 54 and the second rotating member 556. The axis of the first circular arc groove is spaced parallel to the axis of the second circular arc groove. In this embodiment, a first arc rail 5510 is provided at one end of the first rotating member 551 away from the first connecting member 552, a first arc groove 542 is provided on the base 54, and the first arc rail 5510 can be rotatably accommodated in the first arc groove 542; a second arc rail 5560 is provided at one end of the second rotating member 556 away from the second connecting member 557, a second arc groove 543 is provided on the base 54, and the second arc rail 5560 can be rotatably accommodated in the second arc groove 543; the axis of the first arc groove 542 is spaced parallel to the axis of the second arc groove 543. Specifically, the first rotating member 551 includes a first rotating portion 5512 and a first connecting portion 5233 connected to the first rotating portion 5512, the first rotating portion 5512 is disposed at a first end of the first rotating member 551, the first connecting portion 5233 is disposed at a second end of the first rotating member 551, the first rotating portion 5512 is rotatably connected to the base 54, and the first connecting portion 5233 is rotatably connected to the first connecting member 552 via a first rotating shaft 5501. The second rotating member 556 includes a second rotating portion 5562 and a second connecting portion 5563 connected to the second rotating portion 5562, the second rotating portion 5562 is disposed at a first end of the second rotating member 556, the second connecting portion 5563 is disposed at a second end of the second rotating member 556, the second rotating portion 5562 is rotatably connected to the base 54, and the second connecting portion 5563 is rotatably connected to the second connecting member 557 via a second rotating shaft 5551.

[0061] The first base body 541 and the second base body 544 can be connected by means of, but not limited to, clamping, gluing or screwing, or the first base body 541 and the second base body 544 can also be integrally formed. The first base body 541 and the second base body 544 are fixedly connected by the cooperation of a clamping column and a clamping hole. The clamping column is provided on one of the first base body 541 and the second base body 544, and the clamping hole is provided on the other of the first base body 541 and the second base body 544. In this embodiment, the end surface of the first base body 541 facing the second base body 544 is provided with a clamping hole 5413, and the end surface of the second base body 544 facing the first base body 541 is provided with a clamping column 5443, and the clamping column 5443 is clamped in the clamping hole 5413, so that the first base body 541 is fixedly connected to the second base body 544. First receiving grooves 5412 are respectively formed on two opposite sides of one end of the first base body 541 facing the second base body 544 , and second receiving grooves 5442 are respectively formed on two opposite sides of one end of the second base body 544 facing the first base body 541 .

[0062] The opposite ends of the first arc groove 542 pass through the front of the first seat body 541, and the opposite ends of the second arc groove 543 pass through the front of the second seat body 544. The first rotating part 5512 has first arc rails 5510 on opposite sides, and the two first arc rails 5510 are coaxial; the second rotating part 5562 has second arc rails 5560 on opposite sides, and the two second arc rails 5560 are coaxial. When the first seat body 541 and the second seat body 544 are buckled with each other, the two first receiving grooves 5412 of the first seat body 541 and the two second receiving grooves 5442 of the second seat body 544 are connected to each other, the first rotating part 5512 is accommodated in the first receiving groove 5412 and the second receiving groove 5442 on one side of the base 54, and the two first circular arc rails 5510 of the first rotating part 5512 are respectively rotatably accommodated in one of the first circular arc grooves 542 of the first seat body 541 and one of the second circular arc grooves 543 of the second seat body 544; the second rotating part 5562 is accommodated in the first receiving groove 5412 and the second receiving groove 5442 on the other side of the base 54, and the two second circular arc rails 5560 of the second rotating part 5562 are respectively rotatably accommodated in the other first circular arc rail 542 of the first seat body 541 and the other second circular arc groove 543 in the second seat body 544. The front of the base 54 is provided with a positioning hole 545. Specifically, the front of the first base body 541 and the front of the second base body 544 are respectively provided with a positioning hole 545. The locking piece passes through the positioning hole 545 and is locked to the back shell 5215, so that the base 54 is fixedly connected to the back shell 5215. The end surface of the first base body 541 away from the second base body 544 is provided with two shaft holes 5415, two connecting holes 5416 and a fixing hole 5417. The two shaft holes 5415 are located at opposite sides of the base 54, the two connecting holes 5416 are located between the two shaft holes 5415, and the fixing hole 5417 is located between the two connecting holes 5416. The axes of the two shaft holes 5415 and the two connecting holes 5416 are parallel to the first rotation axis L1 between the first rotating member 551 and the base 54.

[0063] In some embodiments, the first arc groove and the second arc groove on the base 54 are interchangeable with the first arc track on the first rotating part 5512 and the second arc track 5560 of the second rotating part 5562. Specifically, the base 54 is provided with an arc track, and the two arc tracks are coaxial; the first rotating part 5512 is provided with arc grooves on opposite sides, and the second rotating part 5562 is provided with arc grooves on opposite sides, and each arc track is rotatably accommodated in the corresponding arc groove.

[0064] The end of the first connecting portion 5233 away from the first rotating portion 5512 is rotatably connected to the first end of the first connecting member 552 via the first rotating shaft 5501, and the first connecting rod 562 is slidably connected to the second end of the first connecting member 552. Specifically, the first connecting portion 5233 is provided with a first lug 5514 at the end away from the first rotating portion 5512, and the first end of the first connecting member 552 is provided with a first receiving groove 5522, and the first lug 5514 is rotatably received in the first receiving groove 5522; the first rotating member 551 also includes a first connecting tube 5515 away from the base 54, specifically, the first connecting tube 5515 is provided at the end of the first lug 5514 away from the first rotating portion 5512; the first connecting member 552 includes a first connecting tube 5515, which is provided at the end of the first connecting tube 5514 away from the first rotating portion 5512; The first sleeve 5523 is enclosed at the first end thereof, the first receiving groove 5522 penetrates the first sleeve 5523 in the radial direction of the first sleeve 5523, the first connecting tube 5515 and the first sleeve 5523 are mutually engaged, so that the first connecting tube 5515 and the first sleeve 5523 are coaxial, and the first rotating shaft 5501 is penetrated through the inner cavity of the first connecting tube 5515 and the inner cavity of the first sleeve 5523, so that the first connecting tube 5515 and the first sleeve 5523 wrap the first rotating shaft 5501. Preferably, the first rotating shaft 5501 is wrapped by the first connecting tube 5515 and the first sleeve 5523.

[0065] The end of the second connecting portion 5563 away from the second rotating portion 5562 and the second connecting member 557 are rotatably connected to the first end of the second connecting member 557 through the second rotating shaft 5551, and the second connecting rod 563 is slidably connected to the second end of the second connecting member 557. Specifically, the second connecting portion 5563 is provided with a second lug 5564 at the end away from the second rotating portion 5562, and the first end of the second connecting member 557 is provided with a second receiving groove 5572, and the second lug 5564 is rotatably received in the second receiving groove 5572; the second rotating member 556 also includes a second connecting tube 5565 away from the base 54, specifically, the second connecting tube 5565 is provided at the end of the second lug 5564 away from the second rotating portion 5562; the second connecting member 557 includes a second sleeve 5573 provided at its first end, and the second sleeve 5573 is provided at the second sleeve 5573 ... The two receiving grooves 5572 pass through the second sleeve 5573 along the radial direction of the second sleeve 5573, and the second connecting tube 5565 and the second sleeve 5573 are embedded with each other, so that the second connecting tube 5565 and the second sleeve 5573 are coaxial, and the second rotating shaft 5551 is passed through the inner cavity of the second connecting tube 5565 and the inner cavity of the second sleeve 5573, so that the second connecting tube 5565 and the second sleeve 5573 wrap the second rotating shaft 5551. Preferably, the second rotating shaft 5551 is wrapped by the combined part of the second connecting tube 5565 and the second sleeve 5573.

[0066] When the first rotating member 551 and the second rotating member 556 are in a bent state relative to the base 54, the first rotating member 551 and the first connecting member 552 are close to or abutted against each other, so that the connection between the first rotating member 551 and the first connecting member 552 is stable, which has a protective effect on the first rotating shaft 5501; the second rotating member 556 and the second connecting member 557 are close to or abutted against each other, so that the connection between the second rotating member 556 and the second connecting member 557 is stable, which has a protective effect on the second rotating shaft 5551. Preferably, the first rotating member 551 and the first connecting member 552 abut against each other, and the second rotating member 556 and the second connecting member 557 abut against each other. When the electronic device 100 falls in a bent state, the first rotating shaft 5501 and the second rotating shaft 5551 will be impacted at the same time; since the first rotating member 551 and the first connecting member 552 abut against each other near the first rotating shaft 5501, and the second rotating member 556 and the second connecting member 557 abut against each other near the second rotating shaft 5551, the first rotating shaft 5501 and the second rotating shaft 5551 can be supported by auxiliary support. Therefore, the impact force on the first rotating shaft 5501 is shared by the first rotating member 551 and the first connecting member 552, and the risk of the first rotating shaft 5501 being broken by the impact is greatly reduced; the impact force on the second rotating shaft 5551 is shared by the second rotating member 556 and the second connecting member 557, and the risk of the second rotating shaft 5551 being broken by the impact is greatly reduced.

[0067] like Figure 7-Figure 14As shown, the first connecting rod 562 is slidably connected to the first connecting member 552. During the rotation of the first rotating mechanism 550 and the first connecting rod 562 on the same side of the base 54 relative to the base 54, the first connecting rod 562 slides relative to the first connecting member 552. The first connecting rod 562 and the first connecting member 552 are slidably connected by the first guide rail and the first guide groove. Specifically, the end of the first connecting rod 562 away from the base 54 and the end of the first connecting member 552 are slidably connected by the first guide groove and the first guide rail. The first guide groove extends in a direction perpendicular to the first rotation axis of the first rotating member 551 and the base 54. The first guide groove is provided at one of the first connecting member 552 and the first connecting rod 562, and the first guide rail is provided at the other of the first connecting member 552 and the first connecting rod 562. In this embodiment, the second end of the first connecting member 552 is provided with a first guide slot 5520, and the first connecting rod 562 is provided with a first guide rail 5620 slidably inserted into the first guide slot 5520. A first avoidance slot 5524 is provided at one end of the front face of the first connecting member 552 away from the first sleeve 5523, and opposite ends of the first avoidance slot 5524 respectively penetrate opposite side surfaces of the first connecting member 552, and the first connecting member 552 is provided with first guide slots 5520 at opposite side surfaces of the first avoidance slot 5524, respectively, and first guide rails 5620 are provided at opposite sides of one end of the first connecting rod 562 away from the gear assembly 564, respectively, and one end of the first connecting rod 562 away from the gear assembly 564 is slidably accommodated in the first avoidance slot 5524, and two first guide rails 5620 are slidably accommodated in two first guide slots 5520, respectively.

[0068] The second connecting rod 563 is slidably connected to the second connecting member 557. When the second rotating mechanism 555 and the second connecting rod 563 on the same side of the base 54 rotate relative to the base 54, the second connecting rod 563 slides relative to the second connecting member 557. The second connecting rod 563 and the second connecting member 557 are slidably connected by the second guide rail and the second guide groove. Specifically, the second connecting rod 563 and the second connecting member 557 are slidably connected by the second guide groove and the second guide rail between the end away from the base 54 and the end of the second connecting member 557. The second guide groove extends in a direction perpendicular to the second rotation axis of the second rotating member 556 and the base 54. The second guide groove is provided at one of the second connecting member 557 and the second connecting rod 563, and the second guide rail is provided at the other of the second connecting member 557 and the second connecting rod 563. In this embodiment, a second guide slot 5570 is provided at the second end of the second connecting member 557, and a second guide rail 5630 is provided on the first connecting rod 562 and is slidably inserted into the second guide slot 5570. A second avoidance slot 5574 is provided on the front end of the second connecting member 557 away from the second sleeve 5573, and opposite ends of the second avoidance slot 5574 respectively penetrate opposite side surfaces of the second connecting member 557, and the second connecting member 557 is provided with second guide slots 5570 on opposite side surfaces of the second avoidance slot 5574, respectively, and second guide rails 5630 are provided on opposite sides of the end of the second connecting rod 563 away from the gear assembly 564, respectively, and the end of the second connecting rod 563 away from the gear assembly 564 is slidably accommodated in the second avoidance slot 5574, and two second guide rails 5630 are slidably accommodated in two second guide slots 5570, respectively.

[0069] like Figure 4-Figure 6 and Figure 11-Figure 14As shown, the first connecting member 552 and the first side support hinge 523 are rotatably connected through the cooperation of the first rotation groove and the first rotation rail, the first rotation groove is provided at one of the first side support hinge 523 and the first connecting member 552, and the first rotation rail is provided at the other of the first side support hinge 523 and the first connecting member 552. In this embodiment, first rotation rails 5526 are respectively provided at opposite ends of the first connecting member 552, and the first side support hinge 523 is provided with a first rotation groove 5234. The two first rotation rails 5526 of each folding aid component 51 are respectively rotatably accommodated in the two first rotation grooves 5234, so that the first side support hinge 523 is rotatably connected to the first connecting member 552. The second connecting member 557 is rotatably connected to the second side support hinge 525 through the cooperation of the second rotation groove and the second rotation rail. The second rotation groove is provided at one of the second side support hinge 525 and the second connecting member 557, and the second rotation rail is provided at the other of the second side support hinge 525 and the second connecting member 557. In this embodiment, the second connecting member 557 is provided with second rotation rails 5576 at opposite ends, and the second side support hinge 525 is provided with a second rotation groove 5254. The two second rotation rails 5576 of each folding assisting assembly 51 are respectively rotatably accommodated in the two second rotation grooves 5254, so that the second side support hinge 525 is rotatably connected to the second connecting member 557.

[0070] In some embodiments, the first connecting member 552 is provided with first rotation grooves at opposite ends, the first side support hinge 523 is provided with first rotation rails, and the first rotation rails are rotatably accommodated in the corresponding first rotation grooves, so that the first side support hinge 523 is rotatably connected to the first connecting member 552. The second connecting member 557 is provided with second rotation grooves at opposite ends, the second side support hinge 525 is provided with second rotation rails, and the second rotation rails are rotatably accommodated in the corresponding second rotation grooves, so that the second side support hinge 525 is rotatably connected to the second connecting member 557.

[0071] The linkage mechanism 56 is located between the limiting mechanism 57 and the rotating mechanism. The first side support hinge 523 rotates relative to the middle support hinge 521 through the first rotating mechanism 550 and the linkage mechanism 56. The second side support hinge 525 rotates relative to the middle support hinge 521 through the second rotating mechanism 555 and the linkage mechanism 56. The limiting mechanism 57 includes a first push member 571 provided on the first link member 562, a second push member 572 provided on the second link member 563, a support member 573 and an elastic member 575. The first push member 571, the second push member 572 and the support member 573 are sleeved on the rotating shaft 561. The elastic member 575 provides elastic force to make the support member 573 and the first push member 571 and the second push member 572 push against each other. Specifically, the first push member 571 includes a first cam 5710 sleeved on one of the rotating shafts 561, the second push member 572 includes a second cam 5720 sleeved on the other rotating shaft 561, and the supporting member 573 includes two top cams 5730 sleeved on the two rotating shafts 561, and the first cam 5710 and the second cam 5720 are respectively rotatably engaged with the two top cams 5730. When the first cam 5710 and the second cam 5720 rotate respectively relative to the two abutting cams 5730, the first cam 5710 and the second cam 5720 respectively rotate to push the two abutting cams 5730 to slide away from or close to the first abutting member 571, the elastic member 575 is squeezed, and the friction torque between the first abutting member 571 and the abutting member 573 and the friction torque between the second abutting member 572 and the abutting member 573 are used to position the first link member 562 and the second link member 563 relative to the rotating mechanism; specifically, the friction torque between the first cam 5710 and the abutting cam 5730 and the friction torque between the second cam 5720 and the abutting cam 5730 are used to limit the first link member 562 to a specific angle relative to the abutting member 573 and the second link member 563 to a specific angle relative to the abutting member 573. The specific angle refers to the angle between the front faces of the two frames 21 in the range of 0 degrees to 180 degrees.

[0072] The first cam 5710 of the first link member 562 and the second cam 5720 of the second link member 563 are respectively sleeved on the two rotating shafts 561. The first cam 5710 includes a circular sleeve and a concave-convex surface provided at one end of the sleeve, the concave-convex surface includes a first protrusion 5714 and a first recess 5715, and the first protrusion 5714 and the first recess 5715 are sequentially arranged at intervals along the circumference of the sleeve. The number of the first protrusions 5714 and the number of the first recesses 5715 can be set as needed, such as the first cam 5710 can include one first protrusion 5714 and one first recess 5715, two first protrusions 5714 and two first recesses 5715, three first protrusions 5714 and three first recesses 5715, or four first protrusions 5714 and four first recesses 5715, etc. The second cam 5720 includes a circular sleeve and a concave-convex surface arranged at one end of the sleeve, the concave-convex surface includes a second protrusion 5724 and a second recessed portion 5725, and the second protrusion 5724 and the second recessed portion 5725 are arranged in sequence and spaced apart along the circumference of the sleeve; the number of the second protrusions 5724 and the number of the second recessed portions 5725 can be set as needed, such as the second cam 5720 may include one second protrusion 5724 and one second recessed portion 5725, two second protrusions 5724 and two second recessed portions 5725, three second protrusions 5724 and three second recessed portions 5725, or four second protrusions 5724 and four second recessed portions 5725, etc. In this embodiment, the first cam 5710 includes three first protruding portions 5714 and three first recessed portions 5715 , and the second cam 5720 includes three second protruding portions 5724 and three second recessed portions 5725 .

[0073] In this embodiment, the elastic member 575 includes a spring sleeved on each rotating shaft 561. The gear assembly 564 includes a linkage gear 5642 and a rotating shaft 5644 that mesh with each other, and each linkage gear 5642 is non-rotatably sleeved on the corresponding rotating shaft 5644. The first connecting rod 562 is provided with a first driving gear 5621 that meshes with the corresponding linkage gear 5642, and the diameter of the pitch circle of the first driving gear 5621 is larger than the outer diameter of the first cam 5710; the second connecting rod 563 is provided with a second driving gear 5631 that meshes with the corresponding linkage gear 5642, and the diameter of the pitch circle of the second driving gear 5631 is larger than the outer diameter of the second cam 5720. The two top cams 5730 of the supporting member 573 are respectively slidably mounted on the two rotating shafts 561, the end of the first connecting rod 562 away from the first pushing member 571 is slidably connected to the first connecting member 552, and the end of the second connecting rod 563 away from the second pushing member 572 is slidably connected to the second connecting member 557. The first connecting rod 562 rotates relative to the base 54 with the first rotating mechanism 550 to drive the corresponding rotating shaft 561 and the first cam 5710 to rotate relative to the top cam 5730. At the same time, the second connecting rod 563 rotates relative to the base 54 with the second rotating mechanism 555 to drive the corresponding rotating shaft 561 and the second cam 5720 to rotate.

[0074] like Fig.13 and Fig.14 As shown, the rotating shaft 561 includes a shaft body 5610 and a connecting cap 5612 located at one end of the shaft body 5610, and a positioning portion 5613 is provided at the shaft body 5610 near the connecting cap 5612. The first connecting rod 562 is fixedly connected to one of the rotating shafts 561 through the positioning portion 5613, and the second connecting rod 563 is fixedly connected to the other rotating shaft 561 through the positioning portion 5613. In this embodiment, the positioning portion 5613 is a positioning surface provided on the outer wall of the shaft body 5610 and extending along the axial direction of the shaft body 5610. The connecting cap 5612 is used to be rotatably connected to the base 54; the end of the shaft body 5610 away from the connecting cap 5612 is provided with a clamping groove 5616, which is located on the outer peripheral wall of the shaft body 5610 and is arranged in a circle along the circumference of the shaft body 5610.

[0075] The first connecting rod member 562 further includes a first connecting cylinder 5622 and a first connecting rod 5623 connected to the outer peripheral wall of the first connecting cylinder 5622. The first connecting cylinder 5622 is used to be sleeved on the shaft body 5610, and the first push member 571 is connected to one end of the first connecting cylinder 5622. Specifically, the sleeve of the first cam 5710 is connected to the first connecting cylinder 5622, and the sleeve of the first cam 5710 and the first connecting cylinder 5622 are coaxial, and the outer diameter of the first connecting cylinder 5622 is greater than or equal to the outer diameter of the sleeve of the first cam 5710. The first driving gear 5621 is arranged on the outer peripheral wall of the first connecting cylinder 5622. The first driving gear 5621 is located on the side of the first connecting cylinder 5622 away from the first connecting rod 5623, and the axis of the first driving gear 5621 is colinear with the axis of the first connecting cylinder 5622. In this embodiment, the rotation angle of the teeth of the first active gear 5621 arranged along the circumference of the first connecting cylinder 5622 is 90 degrees, that is, the first active gear 5621 is provided on one quarter of the outer peripheral wall of the first connecting cylinder 5622. The first push member 571 is provided at the end of the first connecting cylinder 5622 away from the first active gear 5621, and the axis of the first connecting cylinder 5622 is colinear with the axis of the first cam 5710 of the first push member 571. The first connecting cylinder 5622 has a waist-shaped first through hole 5624, and the first connecting cylinder 5622 can be positioned on the positioning portion 5613 after the rotating shaft 561 is inserted into the first through hole 5624 of the first connecting cylinder 5622. The first guide rails 5620 are respectively convexly provided on the opposite sides of the first connecting rod 5623, and the first guide rails 5620 extend along the length direction of the first connecting rod 5623.

[0076] The second connecting rod member 563 further includes a second connecting cylinder 5632 and a second connecting rod 5633 connected to the outer peripheral wall of the second connecting cylinder 5632. The second connecting cylinder 5632 is used to be sleeved on the shaft body 5610, and the second push member 572 is connected to one end of the second connecting cylinder 5632. Specifically, the sleeve of the second cam 5720 is connected to the second connecting cylinder 5632, and the sleeve of the second cam 5720 and the second connecting cylinder 5632 are coaxial, and the outer diameter of the second connecting cylinder 5632 is greater than or equal to the outer diameter of the sleeve of the second cam 5720. The second driving gear 5631 is arranged on the outer peripheral wall of the second connecting cylinder 5632. The second driving gear 5631 is located on the side of the second connecting cylinder 5632 away from the second connecting rod 5633, and the axis of the second driving gear 5631 is colinear with the axis of the second connecting cylinder 5632. In this embodiment, the rotation angle of the teeth of the second driving gear 5631 arranged along the circumference of the second connecting cylinder 5632 is 90 degrees, that is, the second driving gear 5631 is provided on one-fourth of the outer peripheral wall of the second connecting cylinder 5632. The second push member 572 is provided at the end of the second connecting cylinder 5632 away from the second driving gear 5631, and the axis of the second connecting cylinder 5632 is colinear with the axis of the second cam 5720 of the second push member 572. The second connecting cylinder 5632 has a waist-shaped second through hole 5634, and the second connecting cylinder 5632 can be positioned on the positioning portion 5613 after the rotating shaft 561 is inserted into the second through hole 5634 of the second connecting cylinder 5632. The second guide rails 5630 are respectively convexly provided on the opposite sides of the second connecting rod 5633, and the second guide rails 5630 extend along the length direction of the second connecting rod 5633.

[0077] like Figure 4-Figure 5As shown, the first link 562 and the first side support hinge 523 are movably connected through the cooperation of the first adjustment slot and the first adjustment shaft, and the axis of the first adjustment shaft is parallel to the axis direction of the rotation shaft 561; the first adjustment slot is provided in one of the first side support hinge 523 and the first link 562, and the first adjustment shaft is provided in the other of the first side support hinge 523 and the first link 562. In this embodiment, the first side support hinge 523 is provided with a first adjustment slot 5237, and the first end of the first link 5623 of the first link 562 away from the rotation shaft 561 is provided with a first adjustment shaft 5628, and the first adjustment shaft 5628 is rotatably and slidably penetrated in the first adjustment slot 5237. The second link member 563 and the second side support hinge 525 are movably connected through the cooperation of the second adjustment slot and the second adjustment shaft, and the axis of the second adjustment shaft is parallel to the axis direction of the rotation shaft 561; the second adjustment slot is provided in one of the second side support hinge 525 and the second link member 563, and the second adjustment shaft is provided in the other of the second side support hinge 525 and the second link member 563. In this embodiment, the second side support hinge 525 is provided with a second adjustment slot 5257, and the second link 5633 of the second link member 563 is provided with a second adjustment shaft 5638 at one end away from the rotation shaft 561, and the first adjustment shaft 5628 is rotatably and slidably inserted into the first adjustment slot 5237.

[0078] like Figure 11-Figure 14 As shown, in this embodiment, the gear combination 564 includes two intermeshing linkage gears 5642, the first driving gear 5621 of the first connecting rod 562 and the second driving gear 5631 of the second connecting rod 563 are respectively meshed with the two linkage gears 5642, the diameter of the pitch circle of the linkage gear 5642 is smaller than the diameter of the pitch circle of the first driving gear 5621 and the second driving gear 5631, and the number of teeth arranged in a circle of the linkage gear 5642 is less than the number of teeth arranged in a circle of the first driving gear 5621 and the second driving gear 5631. In a certain width and height space of the rotating shaft 561, two interlocking gears 5642 are arranged between the two rotating shafts 561 to increase the diameter of the pitch circle of the first driving gear 5621 and the second driving gear 5631, thereby increasing the outer diameters of the first cam 5710 and the second cam 5720, so that the first cam 5710 and the second cam 5720 can provide a larger friction torque with the two abutting cams 5730 respectively, and can reduce the fatigue wear of the first cam 5710 and the second cam 5720, thereby extending the service life of the first cam 5710 and the second cam 5720.

[0079] The linkage mechanism 56 also includes a fixing member 565 sleeved on the rotating shaft 561, and the limiting mechanism 57 also includes a positioning member 576. The fixing member 565 is connected to one end of the two rotating shafts 561, and the positioning member 576 is connected to the other opposite end of the two rotating shafts 561; the first connecting rod member 562, the second connecting rod member 563, the gear assembly 564, the first pushing member 571, the second pushing member 572, the supporting member 573 and the elastic member 575 are located between the fixing member 565 and the positioning member 576. Specifically, the first guide slide holes 5765 are respectively provided at the opposite ends of the positioning member 576, the fixing member 565 is a rectangular positioning piece, and the second guide slide holes 5652 are respectively provided at the opposite ends of the fixing member 565, and the shaft bodies 5610 of the two rotating shafts 561 are respectively penetrated through the two first guide slide holes 5765 and the two second guide slide holes 5652, and the rotating shaft 561 can rotate in the first guide slide holes 5765 and the second guide slide holes 5652, and the fixing member 565 and the positioning member 576 can only slide along the axial direction of the two rotating shafts 561. Two first shaft holes 5654 are provided in the middle of the fixing member 565 between the two second guide slide holes 5652, and the axis of the second guide slide hole 5652 is parallel to the axis of the first shaft hole 5654; ​​the two rotating shafts 5644 are respectively rotatably inserted into the first shaft holes 5654. A positioning portion 5656 is provided on the side of the fixing member 565 facing the first link member 562. The first link member 562 includes a first limiting surface and a second limiting surface. When the first link member 562 and the second link member 563 are in a folded state relative to the base 54, the positioning portion 5656 abuts against the first limiting surface; when the first link member 562 and the second link member 563 are in a flattened state relative to the base 54, the positioning portion 5656 abuts against the second limiting surface. Specifically, a notch is provided around the first through hole 5624 at one end of the first connecting cylinder 5622 away from the first push member 571. The first limiting surface and the second limiting surface are the two opposite end surfaces of the notch. The first limiting surface is further away from the first guide rail 5620 than the second limiting surface. The positioning portion 5656 is a positioning block. A positioning rod 5657 is provided on the side of the fixing member 565 away from the positioning portion 5656. The positioning rod 5657 is used to be positioned on the base 54. The two opposite end surfaces of the fixing member 565 are configured as arc surfaces.

[0080] like Fig.13 and Fig.14As shown, the abutting member 573 further includes a connecting portion 5732, two abutting cams 5730 are arranged at opposite ends of the connecting portion 5732, an elastic member 575 is located between the positioning member 576 and the abutting member 573, the rotating shaft 561 can rotate relative to the abutting member 573, and the abutting member 573 can slide along the axial direction of the rotating shaft 561. Specifically, the abutting cam 5730 includes a circular sleeve and a concave-convex surface provided at one end of the sleeve, the concave-convex surface includes a third protruding portion 5734 and a third concave portion 5735, and the third protruding portion 5734 and the third concave portion 5735 are sequentially arranged at intervals along the circumferential direction of the sleeve; the number of the third protruding portion 5734 and the third concave portion 5735 on the abutting cam 5730 is the same as the number of the first concave portion 5715 and the first protruding portion 5714 on the first cam 5710. The number of the third protrusions 5734 and the third recesses 5735 on the top cam 5730 is consistent with the number of the second recesses 5725 and the second protrusions 5724 on the second cam 5720, so that the first protrusion 5714 cooperates with the third recesses 5735, the third protrusion 5734 cooperates with the first recesses 5715, the second protrusion 5724 cooperates with the third recesses 5735, and the third protrusion 5734 cooperates with the second recesses 5725. The supporting member 573 is provided with a second shaft hole 5736. Specifically, the connecting portion 5732 is provided with two second shaft holes 5736, and the axis of the second shaft hole 5736 is parallel to the axis of the top cam 5730; the opposite ends of the rotating shaft 5644 of the linkage gear 5642 are respectively penetrated through the first shaft hole 5654 and the second shaft hole 5736.

[0081] The support member 573 and the positioning member 576 clamp the elastic member 575. The positioning member 576 includes a rectangular guide slide 5761 and an extension portion 5763 provided in the middle of one side of the guide slide 5761. The first guide slide holes 5765 are respectively provided at opposite ends of the guide slide 5761, and the opposite end surfaces of the guide slide 5761 are set as arc surfaces. The extension direction of the extension portion 5763 is parallel to the axis of the first guide slide hole 5765, and the end surface of the extension portion 5763 away from the guide slide 5761 is provided with two avoidance holes 5767. Preferably, the side of the guide slide 5761 away from the extension portion 5763 is provided with a first anti-slip portion 5768 around the first guide slide hole 5765. Specifically, the first anti-slip portion 5768 can be, but is not limited to, a convex portion, a hole or a rough surface provided on the guide slide 5761.

[0082] The friction assembly 577 includes a first friction member 5770 connected to the rotating shaft 561. The first friction member 5770 abuts against the positioning member 576. When the rotating shaft 561 rotates relative to the base 54, the first friction member 5770 rotates with the rotating shaft 561, and there is friction resistance between the first friction member 5770 and the positioning member 576. Specifically, the first friction member 5770 is a circular friction plate, and a first positioning hole 5772 is provided in the middle of the friction plate. The first friction member 5770 is fixedly connected to the rotating shaft 561 through the first positioning hole 5772. The side of the positioning member 576 facing the first friction member 5770 is provided with a first anti-slip portion 5768, and / or the side of the first friction member 5770 facing the positioning member 567 is provided with a second anti-slip portion 5774. In this embodiment, the two opposite sides of the first friction member 5770 are respectively provided with second anti-slip parts 5774, and the second anti-slip parts 5774 can be, but are not limited to, convex parts, holes or rough surfaces provided on the first friction member 5770; in this embodiment, the two opposite sides of the first friction member 5770 are respectively provided with a plurality of holes, and these holes can increase the friction resistance of the first friction member 5770. In this embodiment, the side of the positioning member 576 facing the first friction member 5770 is provided with a first anti-slip part 5768, and the side of the first friction member 5770 facing the positioning member 576 is provided with a second anti-slip part 5774. In some embodiments, the first anti-slip part 5768 on the positioning member 576 can be omitted, and only the second anti-slip part 5774 on the side of the first friction member 5770 facing the positioning member 576 is retained; or the second anti-slip part 5774 on the side of the first friction member 5770 facing the positioning member 576 can be omitted, and only the first anti-slip part 5768 on the positioning member 576 is retained.

[0083] The friction assembly 577 further includes a gasket 578 sleeved on the rotating shaft 561, that is, the gasket 578 is slidably sleeved on the two rotating shafts 561; the first friction member 5770 is between the gasket 578 and the positioning member 576; when the first friction member 5770 rotates with the rotating shaft 561, there is friction resistance between the first friction member 5770 and the positioning member 576 and between the first friction member 5770 and the gasket 578. Specifically, the gasket 578 is rectangular, and the opposite ends of the gasket 578 are respectively set as arc surfaces. The side of the gasket 578 facing the first friction member 5770 is provided with a third anti-slip portion 5784. In this embodiment, the opposite ends of the gasket 578 are respectively provided with through holes 5782, and the opposite sides of the gasket 578 are provided with a third anti-slip portion 5784 around each through hole 5782. The third anti-slip portion 5784 may be, but is not limited to, a convex portion, a hole or a rough surface provided on the first friction member 5770; in this embodiment, the third anti-slip portion 5784 is provided on the opposite sides of the gasket 578 at a plurality of holes around each through hole 5782. In this embodiment, the side of the gasket 578 facing the first friction member 5770 is provided with the third anti-slip portion 5784, and the side of the first friction member 5770 facing the gasket 578 is provided with the second anti-slip portion 5774.

[0084] In some embodiments, the third anti-slip portion 5784 of the gasket 578 facing the side of the first friction member 5770 can be omitted, and only the second anti-slip portion 5774 on the side of the first friction member 5770 facing the gasket 578 is retained; or the second anti-slip portion 5774 on the side of the first friction member 5770 facing the gasket 578 can be omitted, and only the third anti-slip portion 5784 of the gasket 578 facing the side of the first friction member 5770 is retained.

[0085] The friction assembly 577 further includes a second friction member 5775 connected to the rotating shaft 561, and the gasket 578 and the second friction member 5775 abut against each other. When the second friction member 5775 rotates with the rotating shaft 561, there is friction resistance between the second friction member 5775 and the gasket 578. Specifically, the second friction member 5775 is a circular friction plate, and a second positioning hole 5776 is provided in the middle of the second friction member 5775. The second friction member 5775 is fixedly connected to the rotating shaft 561 through the second positioning hole 5776. The side of the gasket 578 facing the second friction member 5775 is provided with a third anti-slip portion 5784, and / or the side of the second friction member 5775 facing the gasket 578 is provided with a fourth anti-slip portion 5778. In this embodiment, the second friction member 5775 has two opposite side surfaces respectively provided with fourth anti-slip parts 5778, which may be, but not limited to, convex parts, holes or rough surfaces provided on the second friction member 5775; in this embodiment, the second friction member 5775 has two opposite side surfaces respectively provided with a plurality of holes, which can increase the friction resistance of the second friction member 5775. In this embodiment, the side of the gasket 578 facing the second friction member 5775 is provided on the third anti-slip part 5784, and the side of the second friction member 5775 facing the gasket 578 is provided with the fourth anti-slip part 5778.

[0086] In some embodiments, the third anti-slip portion 5784 on the side of the gasket 578 facing the second friction member 5775 can be omitted, and only the fourth anti-slip portion 5778 on the side of the second friction member 5775 facing the gasket 578 is retained; or the fourth anti-slip portion 5778 on the side of the second friction member 5775 facing the gasket 578 can be omitted, and only the third anti-slip portion 5784 on the side of the gasket 578 facing the second friction member 5775 is retained.

[0087] The limiting mechanism 57 further includes two C-shaped buckles 579 , and the C-shaped buckles 579 are used to be engaged in the slots 5616 of the rotating shaft 561 .

[0088] Please also read Figure 11-Figure 18When assembling the linkage mechanism 56 and the limiting mechanism 57, the ends of the two rotating shafts 561 away from the connecting cap 5612 are respectively inserted into the two second guide sliding holes 5652 of the fixing member 565 until the fixing member 565 stops at the connecting cap 5612; the gear assembly 564 is placed between the first connecting rod 562 and the second connecting rod 563, and the two linkage gears 5642 are respectively engaged with the first driving gear 5621 and the second driving gear 5631; the ends of the two rotating shafts 561 away from the connecting cap 5612 are respectively inserted into the first connecting rod 562 The two rotating shafts 5644 of the gear assembly 564 are respectively inserted into the two first shaft holes 5654 of the fixing member 565, and the positioning portion 5656 of the fixing member 565 is accommodated in the corresponding notch of the first connecting cylinder 5622; at this time, the first cam 5710 and the first driving gear 5621 rotate the shaft 561 together, and the first cam 5710 and the second driving gear 5631 rotate the shaft 561 together; each positioning portion 5656 is located between the corresponding first limiting surface and the second limiting surface. The abutting member 573 is sleeved on the two rotating shafts 561 so that the two abutting cams 5730 of the abutting member 573 can respectively engage with the first cam 5710 and the second cam 5720 in a rotatable manner. Specifically, the ends of the two rotating shafts 561 with the slots 5616 are respectively inserted into the inner cavities of the two abutting cams 5730 of the abutting member 573, and the two rotating shafts 5644 are respectively inserted into the two second shaft holes 5736 of the abutting member 573 until they abut against the side of the connecting portion 5732, and the two rotating shafts 5644 respectively pass through the corresponding second shaft holes 5736, that is, the ends of the rotating shafts 5644 are exposed to the side of the abutting member 573 away from the fixing member 565; the two elastic members 575 are respectively sleeved on the two rotating shafts 561; the positioning member 576 is sleeved on the two rotating shafts 561, that is, the ends of the two rotating shafts 561 with the slots 5616 are respectively inserted into the two first guide sliding holes 576 of the positioning member 576 5, until the two rotating shafts 5644 are respectively inserted into the two avoiding holes 5767 of the positioning member 576, so that the elastic member 575 is clamped between the supporting member 573 and the positioning member 576; the two first friction members 5770 are respectively sleeved on the two rotating shafts 561, the gaskets 578 are sleeved on the two rotating shafts 561, and then the two second friction members 5775 are respectively sleeved on the two rotating shafts 561. At this time, the gaskets 578 are located between the first friction members 5770 and the second friction members 5775, and the slots 5616 of each rotating shaft 561 expose the side of the corresponding second friction member 5775 away from the positioning member 576; and then the two C-shaped buckles 579 are respectively clamped on the slots 5616 of the two rotating shafts 561.At this time, the two C-shaped buckles 579 respectively abut against the sides of the two second friction members 5775 away from the positioning member 576, and the elastic member 575 is in a squeezed state, that is, the elastic member 575 has a pre-elastic force. If the elastic member 575 has a pre-elastic force F0, the first cam 5710 can be rotated to abut against the corresponding abutting cam 5730, that is, the first protrusion 5714 is accommodated in the third recessed portion 5735, the third protrusion 5734 is accommodated in the first recessed portion 5715, and the second cam 5720 can be rotated to abut against the corresponding The corresponding abutting cam 5730, that is, the second protrusion 5724 is accommodated in the third recessed portion 5735, and the third protrusion 5734 is accommodated in the second recessed portion 5725; the axial force F on the first cam 5710, the abutting cam 5730 and the friction assembly 577 on one rotating shaft 561 is equal to the pre-elastic force F0 of the elastic member 575; the axial force F on the second cam 5720, the abutting cam 5730 and the friction assembly 577 on the other rotating shaft 561 is equal to the pre-elastic force F0 of the elastic member 575.

[0089] When the linkage mechanism 56 is bent from a completely flattened state, the first link member 562 is bent toward the second link member 563 relative to the supporting member 573, and the first link member 562 rotates along the axis of the corresponding rotating shaft 561 to drive the corresponding rotating shaft 561, the first driving gear 5621 and the first pushing member 571 to rotate along the axis of the rotating shaft 561, and the rotating shaft 561 rotates in the first guide slide hole 5765 corresponding to the positioning member 576, the second guide slide hole 5652 corresponding to the fixing member 565 and the through hole 5782 corresponding to the gasket 578; the rotating first driving gear 5621 drives the second driving gear 5631 to rotate through the gear combination 564, and the rotation of the second driving gear 5631 drives the corresponding rotating shaft 561, the second connecting tube 5632, the second pushing member 572 and the second link 5633 to rotate, so that the first link member 562 and the first driving gear 5621 of the linkage mechanism 56 rotate. The second connecting rod members 563 move toward each other synchronously; at the same time, the first pushing member 571 on the first connecting rod member 562 rotates relative to the supporting member 573, so that the first cam 5710 of the first pushing member 571 rotates to push the top cam 5730, and the second pushing member 572 on the second connecting rod member 563 rotates relative to the supporting member 573, so that the second cam 5720 of the second pushing member 572 rotates to push the top cam 5730, so that the supporting member 573 slides axially along the rotating shaft 561 and squeezes the elastic member 575, and the elastic member 575 elastically pushes the positioning member 576, so that the first friction member 5770 is clamped between the gasket 578 and the positioning member 576 and the second friction member 5775 is clamped between the gasket 578 and the C-shaped buckle 579, and the first friction member 5770 and the second friction member 5775 rotate relative to the positioning member 576 and the gasket 578 along the corresponding rotating shaft 561.

[0090] In the above process, the axial force on the first cam 5710, the top cam 5730, the first friction member 5770 and the second friction member 5775 on one rotating shaft 561 is equal to the elastic force of the elastic member 575, and the axial force on the second cam 5720, the top cam 5730, the first friction member 5770 and the second friction member 5775 on the other rotating shaft 561 is equal to the elastic force of the elastic member 575; the friction torque between the first cam 5710 and the top cam 5730, the friction resistance between the second cam 5720 and the top cam 5730 and / or the first friction member 5770 and the friction resistance of the second friction member 5775 can limit the first connecting rod 562 and the second connecting rod 563 to a specific angle between 180 degrees and 0 degrees. When the angle between the first link member 562 and the second link member 563 is 180 degrees, the linkage mechanism 56 is in a completely flattened state, and when the angle between the first link member 562 and the second link member 563 is 0 degrees, the linkage mechanism 56 is in a completely bent state.

[0091] In other usage modes, the first link member 562 and the second link member 563 can be rotated together in opposite directions, and the first link member 562 and the second link member 563 respectively rotate around the axis of the corresponding rotating shaft 561, so as to drive one of the rotating shafts 561, the first driving gear 5621 and the first push member 571 to rotate around the axis of the one rotating shaft 561, and at the same time, the other rotating shaft 561, the second driving gear 5631 and the second push member 572 rotate around the axis of the other rotating shaft 561; the first driving gear 5621 and the second driving gear 5631 together drive the two linkage gears 5642 of the gear combination 564 to rotate, so that the first link member 562 and the second link member 563 of the linkage mechanism 56 are synchronously brought close to each other. At the same time, the first pushing member 571 on the first connecting rod 562 rotates relative to the supporting member 573, so that the first cam 5710 of the first pushing member 571 rotationally pushes the corresponding top cam 5730, and the second pushing member 572 on the second connecting rod 563 rotates relative to the supporting member 573, so that the second cam 5720 of the second pushing member 572 rotationally pushes the corresponding top cam 5730, and the supporting member 573 slides along the axial direction of the rotating shaft 561 to squeeze the elastic member 575, and the elastic member 575 elastically presses against the positioning member 576 to clamp the first friction member 5770 and the second friction member 5775, and the first friction member 5770 and the second friction member 5775 rotate relative to the positioning member 576 and the gasket 578 along the corresponding rotating shaft 561.

[0092] When the linkage mechanism 56 is unfolded from the fully bent state, the first link member 562 is unfolded relative to the abutting member 573 toward and away from the second link member 563, and the first link member 562 rotates along the axis of the corresponding rotating shaft 561 to drive the corresponding rotating shaft 561, the first driving gear 5621 and the first pushing member 571 to rotate along the axis of the rotating shaft 561, and the rotating shaft 561 rotates in the first guide slide hole 5765 corresponding to the positioning member 576 and the second guide slide hole 5652 corresponding to the fixing member 565; the rotating first driving gear 5621 drives the second driving gear 5631 to rotate through the gear combination 564, and the rotation of the second driving gear 5631 drives the corresponding rotating shaft 561, the second connecting tube 5632, the second pushing member 572 and the second link 563 to rotate, so that the linkage mechanism The first connecting rod member 562 and the second connecting rod member 563 move away from each other synchronously; at the same time, the first pushing member 571 and the second pushing member 572 rotate relative to the supporting member 573 respectively, so that the first cam 5710 of the first pushing member 571 and the second cam 5720 of the first pushing member 571 rotate to push the two top cams 5730 respectively, and the elastic member 575 elastically pushes between the supporting member 573 and the positioning member 576 to make the positioning member 576 slide axially along the rotating shaft 561, the first friction member 5770 is clamped between the gasket 578 and the positioning member 576, and the second friction member 5775 is clamped between the gasket 578 and the C-shaped buckle 579, and the first friction member 5770 and the second friction member 5775 rotate relative to the gasket 578 and the positioning member 576 along the corresponding rotating shaft 561.

[0093] In the above process, the axial force on the first cam 5710, the corresponding top cam 5730, the first friction member 5770 and the second friction member 5775 on one rotating shaft 561 is equal to the elastic force of the elastic member 575, and the axial force on the second cam 5720, the corresponding top cam 5730, the first friction member 5770 and the second friction member 5775 on the other rotating shaft 561 is equal to the elastic force of the elastic member 575; the friction torque between the first cam 5710 and the top cam 5730, the friction torque between the second cam 5720 and the top cam 5730 and / or the friction resistance of the first friction member 5770 and the second friction member 5775 can limit the first connecting rod 562 and the second connecting rod 563 to a specific angle between 0 degrees and 180 degrees.

[0094] In other usage modes, the first link member 562 and the second link member 563 can be rotated together in a direction away from each other, and the first link member 562 and the second link member 563 respectively rotate around the axes of the two rotating shafts 561 to drive the two rotating shafts 561, the first driving gear 5621, the second driving gear 5631, the first push member 571 and the second push member 572 to rotate around the axes of the corresponding rotating shafts 561; the first driving gear 5621 and the second driving gear 5631 together drive the two linkage gears 5642 of the gear assembly 564 to rotate, so that the first link member 562 and the second link member 563 of the linkage mechanism 56 are away from each other and flattened; at the same time, the first link member 562 on the first link member 561 The pushing member 571 and the second pushing member 572 on the second connecting rod member 563 rotate relative to the supporting member 573, so that the first cam 5710 of the first pushing member 571 and the second cam 5720 of the second pushing member 572 respectively rotate to push the two top cams 5730, and the supporting member 573 slides along the axial direction of the rotating shaft 561 to squeeze the elastic member 575, and the elastic member 575 elastically pushes the positioning member 576 to clamp the first friction member 5770 between the gasket 578 and the positioning member 576 and the second friction member 5775 between the gasket 578 and the C-shaped buckle 579, and the first friction member 5770 and the second friction member 5775 rotate relative to the positioning member 576 and the gasket 578 along the corresponding rotating shaft 561.

[0095] like Figure 6-Figure 8 and Figure 11-Figure 18When assembling the folding aid component 51, the first rotating portion 5512 of the first rotating member 551 and the second rotating portion 5562 of the second rotating member 556 are respectively placed between the first seat body 541 and the second seat body 544, and the first rotating portion 5512 and the second rotating portion 5562 are located on opposite sides of the base 54, and the clamping column 5443 of the second seat body 544 is clamped into the clamping hole 5413 of the first seat body 541, so that the first seat body 541 is fixedly connected to the second seat body 544, and the two first arc rails 5510 of the first rotating portion 5512 are respectively slidably accommodated in one of the first arc grooves 542 of the first seat body 541 and one of the second arc grooves 543 of the second seat body 544, and the two second arc rails 5560 of the second rotating portion 5562 are respectively slidably accommodated in the other first arc groove 542 of the first seat body 541 and the other second arc groove 543 of the second seat body 544. Place the combination of the linkage mechanism 56 and the limiting mechanism 57 between the first connecting member 552 and the second connecting member 557, slide the first guide rail 5620 of the first connecting rod 562 into the first guide groove 5520 of the first connecting member 552, slide the second guide rail 5630 of the second connecting rod 563 into the second guide groove 5570 of the second connecting member 557, and the two connecting caps 5612, the two rotating shafts 5644 and the positioning rod 5657 are respectively inserted into the two shaft holes 5415, the two connecting holes 5416 and the fixing hole 5417.

[0096] like Figure 3-Figure 8As shown, when the magnetic isolation mechanism 58 is assembled to the folding aid assembly 51, the two magnetic isolation mechanisms 58 are respectively assembled to the opposite sides of the base 54. Specifically, the two magnetic isolation members 581 are respectively connected to the guide grooves 5440 of the two supporting portions 5441 of the second seat body 544 through two connecting members 583. When assembling the folding-assisting component 51 to the bendable component 52, the first side supporting hinge 523 and the second side supporting hinge 525 are respectively placed on opposite sides of the base 54, the two first rotating rails 5526 of the first connecting member 552 are respectively rotatably accommodated in the corresponding pair of first rotating grooves 5234, and the first adjusting shaft 5628 of the first connecting rod 562 is inserted into the corresponding first adjusting groove 5237; the two second rotating rails 5576 of the second side supporting hinge 525 are respectively rotatably accommodated in the corresponding pair of second rotating grooves 5254, and the second adjusting shaft 5638 of the second connecting rod 563 is inserted into the corresponding second adjusting groove 5257; the first hinge body 5210 is placed on the base 54, so that the first hinge body 5210 is located between the first side supporting hinge 523 and the second side supporting hinge 525, and the two first connecting areas 5212 are respectively connected to the two folding-assisting components 51. The back shell 5215 is then connected to the back sides of the two bases 54. The rotation axis between the first rotating member 551 and the base 54 is parallel to the axis of the rotating shaft 561, the rotation axis between the second rotating member 556 and the base 54 is parallel to the axis of the rotating shaft 561, the rotation axis between the first rotating member 551 and the first connecting member 552 is parallel to the axis of the rotating shaft 561, and the rotation axis between the second rotating member 556 and the second connecting member 557 is parallel to the axis of the rotating shaft 561. When the first side support hinge 523 and the second side support hinge 525 are in a fully flattened state, the first adjustment shaft 5628 is positioned at the second positioning segment 5237b of the corresponding first adjustment groove 5237, the second adjustment shaft 5638 is positioned at the fourth positioning segment 5257b of the corresponding second adjustment groove 5257, and the positioning portion 5656 abuts against the second limiting surface to keep the folding device 50 in a fully flattened state. The front face of the first side support hinge 523, the front face of the second side support hinge 525 and the front face of the middle support hinge 521 are coplanar, preventing the first side support hinge 523 and the second side support hinge 525 from bending back relative to the middle support hinge 521.When the first side support hinge 523 and the second side support hinge 525 are in a fully bent state, the first adjustment shaft 5628 is positioned at the first positioning section 5237a of the corresponding first adjustment groove 5237, the second adjustment shaft 5638 is positioned at the third positioning section 5257a of the corresponding second adjustment groove 5257, and the positioning portion 5656 abuts against the first limiting surface to keep the folding device 50 in a fully bent state. The front of the first side support hinge 523, the front of the second side support hinge 525 and the front of the middle support hinge 521 form a teardrop shape to prevent the first side support hinge 523 and the second side support hinge 525 from further bending relative to the middle support hinge 521.

[0097] Please also read Figure 1-Figure 14 and Figure 19-21, place the installed folding device 50 between the two frames 21, and fix the first connecting member 552 and the second connecting member 557 on the opposite sides of the folding device 50 to the two frames 21 respectively. Position the two first magnetic members 531 in the two positioning grooves 2112 of one of the frames 21 respectively, and position the two second magnetic members 533 in the two positioning grooves 2112 of the other frame 21 respectively. The two magnetic isolation parts 5811 on one side of the bendable component 52 are respectively accommodated in the two receiving grooves 2114 of one of the frames 21, and the connecting parts 5813 of the two magnetic isolation parts 581 are respectively accommodated in the two guide grooves 210 of the one of the frames 21; the two magnetic isolation parts 5811 on the other side of the bendable component 52 are respectively accommodated in the two receiving grooves 2114 of the other frame 21, and the connecting parts 5813 of the two magnetic isolation parts 581 are respectively accommodated in the two receiving grooves 2114 of the other frame 21. At this time, the front of the two frames 21, the front of the middle support hinge 521, the front of the first side support hinge 523 and the front of the second side support hinge 525 are coplanar. The back of the flexible screen 30 is connected to the front 211 of the two frames 21 and the front of the folding device 50, the bendable area 31 faces the folding device 50, and the two non-bending areas 33 face the front of the two frames 21 respectively. When the flexible screen 30 is in a flattened state, the first cam 5710 and the second cam 5720 are respectively fitted with the two abutting cams 5730, the elastic member 575 has a pre-elastic force to push the abutting member 573 and the positioning member 576 to limit the bendable component 52 to maintain a flattened state, and the angle between the first link 5623 of the first link member 562 and the second link 5633 of the second link member 563 is 180 degrees. The magnetic isolation parts 5811 of the two magnetic isolation parts 581 between one frame 21 and the base 54 respectively cover the two positioning grooves 2112 to shield the magnetic field of the two first magnetic suction parts 531; the magnetic isolation parts 5811 of the two magnetic isolation parts 581 between the other frame 21 and the base 54 respectively cover the two positioning grooves 2112 to shield the magnetic field of the two first magnetic suction parts 531. Since the electronic device 100 is in a flattened state, each magnetic isolation part 5811 can shield the magnetic field of the corresponding magnetic suction part to prevent the magnetic suction part from absorbing impurities such as iron nails and iron particles, thereby avoiding damage to the flexible screen 30 when the electronic device 100 is folded. In addition, since the front side of the middle support hinge 521 is a complete surface and there is no step difference in the middle support hinge 521, the flexible screen 30 will not be impacted by the step difference when it is flattened, and the flexible screen 30 will not have color spots, bright spots and other bad problems, thereby ensuring the reliability of the flexible screen 30, and at the same time, improving the touch feel of the flexible screen 30 and improving the user experience.

[0098] Please also read Figure 1 and Figure 22 to Figure 26When the electronic device 100 is bent, a bending force is applied to at least one of the two frames 21 of the electronic device 100, so that the first rotating mechanism 550 and the second rotating mechanism 555 connected to the two frames 21 rotate in directions adjacent to each other, and the folding device 50 is bent through the two folding auxiliary components 51, and the bendable area 31 of the flexible screen 30 is bent along with the bendable component 52. Specifically, if a bending force is applied to one of the frames 21, the one of the frames 21 drives the corresponding rotating mechanism, such as the first rotating mechanism 550, to rotate relative to the base 54 toward the side close to the flexible screen 30; to drive the first connecting rod 562 to rotate along the axis of the rotating shaft 561 relative to the base 54 toward the side close to the flexible screen 30. At the same time, the first guide rail 5620 of the first connecting rod 562 slides in the first guide groove 5520 of the corresponding first connecting member 552, and the first connecting tube 5622, the rotating shaft 561, the first driving gear 5621 and the first pushing member 571 of the first connecting rod 562 rotate along the axis of the corresponding rotating shaft 561. The rotating first driving gear 5621 drives the second driving gear 5631 to rotate through the gear combination 564. The rotation of the second driving gear 5631 drives the corresponding rotating shaft 561, the second connecting tube 5632, the second pushing member 571 The pushing member 572 and the second connecting rod 5633 rotate, so that the first connecting rod 562 and the second connecting rod 563 of the linkage mechanism 56 are synchronously moved closer to each other; at the same time, the first pushing member 571 on the first connecting rod 562 and the second pushing member 573 on the second connecting rod 563 rotate relative to the supporting member 573 respectively, so that the first cam 5710 and the second cam 5720 respectively rotate to push the two top cams 5730, and the supporting member 573 slides along the axial direction of the rotating shaft 561 to squeeze the elastic member 575, and the elastic member 575 elastically pushes the positioning member 576 to clamp the first friction member 5770 between the gasket 578 and the positioning member 576 and the first friction member 5770 between the gasket 578 and the C-shaped buckle 579, and the first friction member 5770 and the second friction member 5775 rotate relative to the gasket 578 and the positioning member 576 along the corresponding rotating shaft 561.

[0099] During the bending process of the linkage mechanism 56, the connecting member 583 moves along the corresponding guide groove 5440 from the first positioning end 5440a to the second positioning end 5440b, so as to drive the connecting part 5813 to slide along the corresponding guide groove 210, so that the magnetic isolation part 5811 is away from the corresponding positioning groove 2112, so that the first magnetic member 531 and the second magnetic member 533 are exposed, until the first magnetic member 531 and the corresponding second magnetic member 533 are attracted to each other, so as to overcome the bending rebound force of the bendable area 31 of the flexible screen 30, so that the electronic device 100 maintains a stable fully folded state. The first adjustment shaft 5628 rotates and slides from the second positioning section 5237b to the first positioning section 5237a in the first adjustment groove 5237, and the second adjustment shaft 563 rotates and slides from the fourth positioning section 5257b to the third positioning section 5257a in the second adjustment groove 5257. The first connecting rod 562 and the second connecting rod 563 respectively rotate along the axis of the corresponding rotating shaft 561 and approach each other to achieve the mutual approach of the first side support hinge 523 and the second side support hinge 525, so that the folding device 50 is in a bent state, and the bendable area 31 of the flexible screen 30 is bent along the folding device 50 until the front sides of the two non-bending areas 33 of the flexible screen 30 are attached to each other, and the bendable area 31 is bent into a water drop shape, thereby realizing seamless folding of the electronic device 100.

[0100] During the bending process of the electronic device 100, the friction torque between the first cam 5710 and the second cam 5730 and the two abutting cams 5730, the friction resistance of the first friction member 5770 and the friction resistance of the second friction member 5775 can limit the rebound of the flexible screen 30, so that the first side support hinge 523 and the second side support hinge 525 are positioned at a specific angle relative to the middle support hinge 521, and the two frames 21 can be limited to a specific angle between 180 degrees and 0 degrees. When the two frames 21 are bent to each other and limited at 0 degrees, that is, the two non-bending areas 33 of the flexible screen 30 are parallel to each other; the bendable area 31 of the flexible screen 30 is bent to form a water drop shape, reducing the duty cycle of the bendable area 31 after bending, thereby reducing the overall thickness of the electronic device 100.

[0101] In other bending methods of the electronic device 100, a bending force can also be applied to the two frames 21 at the same time. The two frames 21 respectively drive the first side support hinge 523 and the second side support hinge 525 to rotate relative to the side close to the flexible screen 30, and the folding device 50 is used to realize the bending of the electronic device 100.

[0102] When the electronic device 100 needs to be flattened, one of the frames 21 is pulled outward, so that the two rotating mechanisms connected to the two frames 21 rotate in directions away from each other. Specifically, a force pulling outward is applied to one of the frames 21 of the electronic device 100, and the one of the frames 21 drives the corresponding rotating mechanism, such as the first rotating mechanism 550, to rotate relative to the base 54 toward the side away from the flexible screen 30, so that the first guide rail 5620 of the first connecting rod 562 slides in the first guide groove 5520 of the first connecting member 552, and the first connecting tube 5622, the rotating shaft 561, the first driving gear 5621 and the first pushing member 571 of the first connecting rod 562 rotate along the axis of the corresponding rotating shaft 561, and the rotating first driving gear 5621 drives the second driving gear 5631 to rotate through the gear combination 564, and the rotation of the second driving gear 5631 drives the corresponding rotating shaft 561, the second connecting tube 5632, the second pushing member 572 and the second connecting rod 5633 to rotate along the axis of the corresponding rotating shaft 561, and the second guide rail 5630 of the second connecting rod 563 rotates along the axis of the corresponding second connecting rod 561. The second guide groove 5570 of the member 557 slides, so that the first link member 562 and the second link member 563 of the linkage mechanism 56 move away from each other synchronously; at the same time, the first push member 571 on the first link member 562 and the second push member 572 on the second link member 563 rotate relative to the support member 573, so that the first cam 5710 of the first push member 571 and the second cam 5720 of the second push member 572 rotate to push the two push cams 573 respectively. 730, the elastic member 575 elastically presses against the positioning member 576 and the supporting member 573 to make the positioning member 576 slide axially along the rotating shaft 561, the first friction member 5770 is clamped between the gasket 578 and the positioning member 576 and the second friction member 5775 is clamped between the gasket 578 and the C-shaped buckle 579, and the first friction member 5770 and the second friction member 5775 rotate relative to the gasket 578 and the positioning member 576 along the corresponding rotating shaft 561.

[0103] During the bending process of the linkage mechanism 56, the connecting member 583 moves along the corresponding guide groove 5440 from the second positioning end 5440b to the first positioning end 5440a, so as to drive the connecting part 5813 to slide along the corresponding guide groove 210, so that the magnetic isolation part 5811 is close to the corresponding positioning groove 2112, until the magnetic isolation part 5811 covers the corresponding positioning groove 2112, so as to shield the magnetic field of the corresponding magnetic suction component, prevent the magnetic suction component from absorbing impurities such as iron nails and iron particles, and avoid damage to the flexible screen 30 when the electronic device 100 is folded. The first adjustment shaft 5628 rotates and slides in the first adjustment groove 5237, the second adjustment shaft 5638 rotates and slides in the second adjustment groove 5257, the first connecting rod 562 and the second connecting rod 563 respectively rotate along the axis of the corresponding rotating shaft 561 and move away from each other, so as to realize the mutual distance between the first side support hinge 523 and the second side support hinge 525, so that the folding device 50 is unfolded, and the bendable area 31 of the flexible screen 30 is unfolded with the folding device 50 until the flexible screen 30 is flattened.

[0104] During the flattening process of the electronic device 100, the friction torque between the first cam 5710 and the second cam 5720 and the two abutting cams 5730, and the friction torque between the first friction member 5770 and the second friction member 5775 can limit the rebound of the flexible screen 30, so that the first side support hinge 523 and the second side support hinge 525 are positioned at a specific angle relative to the middle support hinge 521, and the two frames 21 can be limited to a specific angle between 0 degrees and 180 degrees.

[0105] In other bending methods of the electronic device 100, an outward pulling force can also be applied to the two frames 21 at the same time, and the two frames 21 respectively drive the first rotating mechanism 550 and the second rotating mechanism 555 on the opposite sides of the base 54 to rotate away from each other, so as to drive the first connecting rod 562 and the second connecting rod 563 on the opposite sides of the base 54 to rotate away from each other, so that the first side support hinge 523 and the second side support hinge 525 rotate to the side away from the flexible screen 30, and the electronic device 100 is unfolded through the folding device 50.

[0106] The folding device 50 of the electronic device 100 of the present invention realizes synchronous bending or unfolding through the folding auxiliary component 51. Since the elastic member 575 can provide a large axial force, the first cam 5710 and the second cam 5720 respectively have a large friction torque with the two abutting cams 5730, and the first friction member 5770 and the second friction member 5775 also have a large friction resistance; therefore, the electronic device 100 can be stably limited at a specific angle between 0 degrees and 180 degrees when bent, and the hovering function of the whole machine can be realized; in addition, when the electronic device 100 is in a flattened state, each magnetic isolation portion 5811 can shield the magnetic field of the corresponding magnetic attraction member to prevent the magnetic attraction member from absorbing impurities such as iron nails and iron particles, thereby avoiding damage to the flexible screen 30 when the electronic device 100 is folded; when the electronic device 100 is in a fully folded state, the first magnetic attraction member 531 and the corresponding second magnetic attraction member 533 are mutually attracted to overcome the bending rebound force of the bendable area 31 of the flexible screen 30, so that the electronic device 100 maintains a stable fully folded state.

[0107] See also Fig. 27 The structure of the folding shell 20a in another embodiment of the present application is similar to the structure of the above-mentioned folding shell 20, except that the folding shell 20a omits the magnetic isolation mechanism on the basis of the folding shell 20; specifically, the first magnetic attraction member 531a positioned in the positioning groove 2112 of one frame 21 is a magnetic body, which is an electromagnet electrically connected to the circuit board of the electronic device, and the second magnetic attraction member 533a positioned in the positioning groove 2112 of the other frame 21 is an iron body, 420 stainless steel, an iron-nickel alloy body, etc. When the folding shell 20a is in the unfolded state, the circuit board does not supply power to the electromagnet, so that the electromagnet does not generate a magnetic field. At this time, the first magnetic component 531a and the second magnetic component 533a will not absorb impurities such as iron nails and iron particles, so as to prevent the impurities from crushing or damaging the flexible screen when the electronic device is folded; when the folding shell 20a is in the fully folded state, the circuit board supplies power to the electromagnet, so that the electromagnet generates a magnetic field. At this time, the first magnetic component 531a and the second magnetic component 533a are attracted to each other to keep the folding shell 20a in a stable fully folded state.

[0108] In some embodiments, the first magnetic member 531a positioned in the positioning groove 2112 of one frame 21 is an iron body, 420 stainless steel, an iron-nickel alloy body, etc., and the second magnetic member 533a positioned in the positioning groove 2112 of the other frame 21 is a magnetic body, which is an electromagnet electrically connected to the circuit board of the electronic device. When the folding shell 20a is in the unfolded state, the circuit board does not supply power to the electromagnet, so that the electromagnet does not generate a magnetic field; when the folding shell 20a is in the fully folded state, the circuit board supplies power to the electromagnet, so that the electromagnet generates a magnetic field.

[0109] The above is an implementation of the embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the embodiment of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A foldable housing, characterized in that: The folding housing comprises: A folding aid assembly, the folding aid assembly comprising a base, a first rotating mechanism and a second rotating mechanism, the first rotating mechanism being rotatably connected to one side of the base, the second rotating mechanism being rotatably connected to the other opposite side of the base, a first rotating axis between the first rotating mechanism and the base being parallel to a second rotating axis between the second rotating mechanism and the base; A frame, at least two of which are respectively disposed on opposite sides of the base, wherein one of the frames is connected to a side of the first rotating mechanism away from the base, and the other of the frames is connected to a side of the second rotating mechanism away from the base; A magnetic attraction component, the magnetic attraction component comprising magnetic attraction parts respectively arranged on at least two adjacent frames; and A magnetic isolation mechanism, wherein the magnetic isolation mechanism includes a magnetic isolation member movably connected to the base, the magnetic isolation member is arranged between the base and at least one of the frames, and the magnetic isolation member includes a magnetic isolation portion away from the base; when the folding shell is in a flattened state, the magnetic isolation portion shields the magnetic field of the magnetic attraction member; when the folding shell is in a folded state, the magnetic isolation portion and the magnetic attraction member are misaligned, so that the magnetic attraction members on the two frames are attracted to each other.

2. The folding housing according to claim 1, characterized in that: The magnetic isolation member and the base are slidably connected via a guide groove and a sliding portion. The guide groove is provided at one of the base and the magnetic isolation member, and the sliding portion is provided at the other of the base and the magnetic isolation member. The sliding portion can slide along the guide groove so that the magnetic isolation portion can cover or stay away from the magnetic attraction member.

3. The folding housing according to claim 2, characterized in that: The guide groove includes a first positioning end and a second positioning end located at opposite ends thereof. When the folding shell is in a flattened state, the sliding portion is positioned at the first positioning end. When the folding shell is in a folded state, the sliding portion is positioned at the second positioning end.

4. The folding housing according to claim 3, characterized in that: The base includes a supporting portion, the guide groove is arranged in the supporting portion, the magnetic isolation mechanism also includes a connecting member connected to the end of the magnetic isolation member away from the magnetic isolation portion, and the connecting member includes the sliding portion; during the folding process of the folding shell, the connecting member moves from the first positioning end to the second positioning end along the guide groove, and the magnetic isolation portion gradually moves away from the magnetic attraction member; during the flattening process of the folding shell, the connecting member moves from the first positioning end to the first positioning end along the guide groove, and the magnetic isolation portion gradually covers the magnetic attraction member.

5. The folding housing according to claim 4, characterized in that: The supporting portion is an arc-shaped supporting piece, the first end of the supporting piece is connected to the base near the front side, the second end of the supporting piece is bent toward the back side of the base, the guide groove extends along the bending direction of the supporting piece, the first positioning end of the guide groove is close to the second end of the supporting piece, and the second positioning end of the guide groove is close to the first end of the supporting piece.

6. The folding housing according to claim 4, characterized in that: The connecting member also includes a stopper connected to the sliding portion, the sliding portion is slidably accommodated in the guide groove, the stopper slidably fits the side of the supporting portion away from the magnetic isolation member, and one end of the sliding portion away from the stopper is connected to the magnetic isolation member.

7. The folding housing according to claim 6, characterized in that: The stopper portion comprises an arc-shaped guide sliding surface, and the guide sliding surface slidably contacts a surface of the support portion that is away from the magnetic isolation member.

8. The folding housing according to claim 2, characterized in that: The magnetic isolation member further comprises a connecting portion connected to the magnetic isolation portion, and an end of the connecting portion away from the magnetic isolation portion can move along the guide groove.

9. The folding housing according to claim 8, characterized in that: The frame body is provided with a guide slide groove, and the connecting part is slidably accommodated in the guide slide groove.

10. The folding housing according to claim 9, characterized in that: The front side of the frame is provided with a positioning groove and a receiving groove which are interconnected, the magnetic attraction component is positioned in the positioning groove, the receiving groove is connected to the guide groove, and the magnetic isolation portion is slidably accommodated in the positioning groove; when the folding shell is in a flattened state, the magnetic isolation portion covers the receiving groove, and when the folding shell is in a folded state, the magnetic isolation portion uncovers the receiving groove.

11. The folding housing according to any one of claims 1 to 10, characterized in that: The magnetic attraction member is a permanent magnet or an electromagnet.

12. The folding housing according to any one of claims 1 to 10, characterized in that: The magnetic attraction component includes a magnetic body arranged in one of the frames and a magnetic conductor arranged in the other frame; when the folding shell is in a flattened state, the magnetic isolation portion shields the magnetic field of the magnetic body, and when the folding shell is in a folded state, the magnetic isolation portion is away from the magnetic body, so that the magnetic body and the magnetic conductor are attracted to each other.

13. The folding housing according to claim 12, characterized in that: The magnetic body is a permanent magnet or an electromagnet, and the magnetic conductor is an iron body or 420 stainless steel.

14. The folding housing according to claim 2, characterized in that: The base includes a first seat body and a second seat body that are interlocked with each other, the first rotating mechanism includes a first rotating member and a first connecting member connected to the first rotating member, the second rotating mechanism includes a second rotating member and a second connecting member connected to the second rotating member, one end of the first rotating member away from the first connecting member and one end of the second rotating member away from the second connecting member are respectively rotatably connected between the first seat body and the second seat body, and the guide groove is arranged on a side of the first seat body away from the second seat body.

15. The folding housing according to claim 14, characterized in that: The first rotating member is rotatably connected to the base through the cooperation of the first arc rail and the first arc groove, and the second rotating member is rotatably connected to the base through the cooperation of the second arc rail and the second arc groove, and the axis of the first arc groove is spaced parallel to the axis of the second arc groove.

16. The folding housing according to claim 14, characterized in that: The folding aid component also includes a linkage mechanism, which includes two rotating shafts rotatably connected to the base, a first connecting rod, a second connecting rod and a gear combination, the axis of the rotating shaft is parallel to the first rotating axis, the first connecting rod and the second connecting rod are respectively connected to the two rotating shafts, the gear combination is arranged between the first connecting rod and the second connecting rod, the first connecting rod is slidably connected to the first connecting member, and the second connecting rod is slidably connected to the second connecting member.

17. The folding housing according to claim 16, characterized in that: The folding assisting assembly also includes a limiting mechanism, which includes a first pushing member arranged on the first connecting rod, a second pushing member arranged on the second connecting rod, a supporting member and an elastic member, the first pushing member, the second pushing member and the supporting member are sleeved on the rotating shaft, and the elastic member provides an elastic force that causes the supporting member and the first pushing member and the second pushing member to abut against each other.

18. The folding housing according to claim 17, characterized in that: The first push member includes a first cam sleeved on one of the rotating shafts, the second push member includes a second cam sleeved on the other rotating shaft, and the supporting member includes a top cam sleeved on the two rotating shafts respectively, and the two top cams are respectively rotatably engaged with the first cam and the second cam.

19. The folding housing according to claim 17, characterized in that: The folding aid component also includes a positioning member and a friction member which are sleeved on a pair of rotating shafts. The elastic member is clamped by the positioning member and the abutting member. The friction member includes a friction member connected to the rotating shaft, and the friction member abuts against the positioning member. When the rotating shaft rotates relative to the base, the friction member rotates with the rotating shaft, and there is friction resistance between the friction member and the positioning member.

20. An electronic device, characterized in that: The electronic device comprises a flexible screen and a folding shell as described in any one of claims 1 to 19, and the flexible screen is arranged on the folding shell.

Images