Folding device and electronic equipment

Abstract

The invention provides a folding device and electronic equipment, the folding device comprises a base, a connecting assembly and a supporting assembly, the connecting assembly is arranged between the base and the supporting assembly, one end of the connecting assembly is rotatably connected with the base, and the other end of the connecting assembly is rotatably connected with the supporting assembly; a track groove is formed in one of the supporting assembly and the base, a shaft part is arranged on the other one of the supporting assembly and the base, and the shaft part is matched with the track groove so that the folding device can be switched between the first state and the second state. The track groove is provided with a first end and a second end which are opposite, in the first state, the shaft part is located at the first end, and in the second state, the shaft part is located at the second end; the multiple track grooves and the multiple shaft parts are arranged in a one-to-one correspondence mode, and in the first state, gaps are formed between part of the shaft parts and the inner walls of the corresponding first ends. According to the folding device provided by the invention, the gap is formed between part of the shaft part and the inner wall part of the first end of the track groove, so that abnormal sound caused by friction between the shaft part and the track groove in the folding process can be avoided.

Description

Technical Field

[0001] The present application relates to the technical field of electronic device structures, and more particularly to a folding device and an electronic device. Background Art

[0002] In recent years, the technology of electronic devices has been updated at an increasingly rapid pace. Since foldable electronic devices can achieve a larger display area and have good portability, they are becoming more and more popular among users.

[0003] A folding device generally includes a flexible screen and a folding device. The middle area of ​​the flexible screen is supported by the folding device. During the folding process of the folding device, the flexible screen is pressed against the folding device, causing the folding device to deform to a certain extent and produce abnormal noise, affecting the user experience. Summary of the invention

[0004] On the one hand, an embodiment of the present application provides a folding device, which includes a base, a connecting component and a supporting component, wherein the connecting component is arranged between the base and the supporting component, one end of the connecting component is rotatably connected to the base, and the other end is rotatably connected to the supporting component; a track groove is provided on one of the supporting component and the base, and an axis portion corresponding to the track groove is provided on the other, and the axis portion cooperates with the track groove to enable the folding device to switch between a first state and a second state; wherein the track groove has a first end and a second end opposite to each other, and in the first state, the axis portion is located at the first end of the track groove, and in the second state, the axis portion is located at the second end of the track groove; the track groove and the axis portion are respectively provided with a plurality of them and are arranged one by one, and in the first state, there is a gap between part of the axis portion and the inner wall of the corresponding first end.

[0005] On the other hand, an embodiment of the present application further provides an electronic device, which includes the folding device described in the above embodiment.

[0006] The folding device and electronic device provided in the embodiment of the present application are rotatably connected to the base and the support assembly respectively, so that the folding device can switch between the first state and the second state, and the overall structure is relatively simple. At the same time, the track groove and the shaft portion cooperate to ensure the stability of the movement of the folding device and the certainty of the movement track, and by setting a gap between the part of the shaft portion and the inner wall of the first end of the track groove, it is possible to avoid friction between the shaft portion and the track groove during the folding process to generate abnormal noise, thereby affecting the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0008] Figure 1 is a schematic diagram of the structure of the electronic device in the first state in some embodiments of the present application;

[0009] Figure 2 yes Figure 1 A schematic diagram of the structure of the electronic device in the second state in the embodiment;

[0010] Figure 3 yes Figure 1 A schematic diagram of the structural disassembly of the electronic device in the embodiment;

[0011] Figure 4 yes Figure 2 A schematic diagram of the structural disassembly of the electronic device in the embodiment;

[0012] Figure 5 is a schematic diagram of the structure of the folding device in some embodiments of the present application;

[0013] Figure 6 yes Figure 5 A schematic diagram of the structural disassembly of the folding device in the embodiment;

[0014] Figure 7 is a schematic diagram of the structure of the support assembly in some embodiments of the present application;

[0015] Figure 8 is a schematic diagram of a partial structural disassembly of a folding device in some embodiments of the present application;

[0016] Fig. 9 is a schematic diagram of the structural disassembly of the folding device in other embodiments of the present application;

[0017] Fig.10 is a schematic diagram of the structure of the folding device in some embodiments of the present application;

[0018] Fig.11 yes Fig.10 A schematic diagram of the cross-sectional structure of the folding device along the AA direction in the embodiment;

[0019] Fig.12 yes Fig.10 A schematic diagram of the cross-sectional structure of the folding device along the BB direction in the embodiment;

[0020] Fig.13 It is a schematic block diagram of the structure of a mobile terminal device in other embodiments of the present application. DETAILED DESCRIPTION

[0021] The present application is further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present application, but are not intended to limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application rather than all embodiments, and all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0022] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0023] As used herein, "electronic devices" (or simply "terminals") include, but are not limited to, devices configured to receive / send communication signals via a wireline connection (e.g., via a public switched telephone network (PSTN), a digital subscriber line (DSL), a digital cable, a direct cable connection, and / or another data connection / network) and / or via a wireless interface (e.g., for a cellular network, a wireless local area network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and / or another communication terminal). Communication terminals configured to communicate via a wireless interface may be referred to as "wireless communication terminals", "wireless terminals" or "mobile terminals". Examples of mobile terminals include, but are not limited to, satellite or cellular phones; personal communication system (PCS) terminals that may combine cellular radiotelephones with data processing, fax, and data communication capabilities; PDAs that may include radiotelephones, pagers, Internet / intranet access, web browsers, organizers, calendars, and / or global positioning system (GPS) receivers; and conventional laptop and / or palmtop receivers or other electronic devices that include radiotelephone transceivers. A mobile phone is an electronic device equipped with a cellular communication module.

[0024] It should be noted that the electronic devices in the embodiments of the present application are mainly electronic devices with folding screens, such as folding screen mobile phones. Folding screen mobile phones have gradually become the development trend of future complete machines. The main advantage they bring is that they combine entertainment and office work, and are easy to carry, which caters to the current consumer demand for portability and diverse functions. Among them, folding screen mobile phones generally have folding methods such as inward folding and outward folding. For folding screen mobile phones with inward folding, after folding, the display surfaces of the flexible screen are close to each other along the folding area, that is, the flexible screen is in an inward folding form. For folding screen mobile phones with outward folding, after folding, the display surfaces of the flexible screen are away from each other along the folding area, that is, the flexible screen is in an outward folding form.

[0025] See also Figures 1 to 4 , Figure 1 It is a schematic diagram of the structure of the first state of the electronic device 10 in some embodiments of the present application. Figure 2 yes Figure 1 A schematic diagram of the structure of the electronic device 10 in the second state in the embodiment, Figure 3 yes Figure 1 A schematic diagram of the structure disassembly of the electronic device 10 in the embodiment, Figure 4 yes Figure 2 Schematic diagram of the structural disassembly of the electronic device 10 in the embodiment.

[0026] The electronic device 10 may include a folding shell 100, and a flexible member 200 and a folding device 300 disposed on the folding shell 100, and the folding shell 100 is configured to carry the flexible member 200 and the folding device 300. The folding device 300 is disposed between the folding shell 100 and the flexible member 200. The flexible member 200 may be, but is not limited to, various flexible components with corresponding functions such as a flexible display screen, a flexible touch screen, and a flexible touch display screen. The flexible member 200 covers the front side of the folding shell 100, and the flexible member 200 folds or flattens as the folding shell 100. Furthermore, the folding shell 100 can be folded, that is, the folding shell 100 can present the following shape under the action of external force. Figure 1 The first state (i.e., the open state) shown in FIG. Figure 2 The second state shown (ie, the folded state) enables the electronic device 10 to have an open state and a folded state.

[0027] It should be noted that the electronic device in the embodiments of the present application is mainly an electronic device with a foldable flexible screen, and the electronic device can be any device with an inward folding method. For example, the electronic device can be a tablet computer, a mobile phone, a camera, a personal computer, a laptop computer, a vehicle-mounted device, a wearable device, and other smart devices with an inward folding method. The electronic device provided in the embodiments of the present application is exemplified by taking an inward folding mobile phone as an example.

[0028] The flexible member 200 has an integrally structured folding region 210 and a non-folding region 220, and the non-folding region 220 is connected to the side of the folding region 210. Optionally, the folding region 210 is located in the middle region of the flexible member 200, and the non-folding region 220 is located on opposite sides of the folding region 210, that is, there may be two non-folding regions 220.

[0029] In the first state, the folding area 210 is flattened, and the two non-folding areas 220 are located on opposite sides of the folding area 210, so that the flexible member 200 can present a flat non-folding state. In the second state, the folding area 210 can be folded into an arc shape, and the two non-folding areas 220 are located on the same side of the folding area 210 and close to each other, so that the flexible member 200 can present a folding state such as a water drop shape or a bending shape. Among them, the flexible member 200 can be a flexible display screen such as OLED (Organic Light-Emitting Diode, organic light-emitting diode), which has the characteristics of flexibility and bendability.

[0030] Furthermore, the folding housing 100 may include a first housing 110 and a second housing 120 that are disposed opposite to each other, and the folding device 300 is disposed between the first housing 110 and the second housing 120 .

[0031] The first housing 110 and the second housing 120 can be rotatably connected by the folding device 300, that is, the opposite ends of the folding device 300 can be respectively connected to the first housing 110 and the second housing 120. When the electronic device 10 switches from the first state to the second state, the first housing 110 and the second housing 120 move toward each other so that the folding housing 100 is folded; when the electronic device 10 switches from the second state to the first state, the first housing 110 and the second housing 120 move away from each other so that the folding housing 100 is opened.

[0032] The structures of the first shell 110 and the second shell 120 may be the same or different.

[0033] Furthermore, the flexible member 200 can be opened or folded synchronously with the opening or folding of the folding housing 100. Optionally, the opposite ends of the folding device 300 are fixedly connected to the first housing 110 and the second housing 120, respectively, so that the folding device 300 can be folded synchronously with the folding housing 100, that is, the folding angle can be substantially maintained.

[0034] The folding device 300 is arranged on the back of the flexible member 200 and is arranged corresponding to the folding area 210 of the flexible member 200. The first shell 110 and the second shell 120 are arranged on the back of the flexible member 200 and are arranged corresponding to the non-folding area 220 of the flexible member 200. In other words, the folding device 300 is used to support the folding area 210 of the flexible member 200, and the folding area 210 is synchronously bent with the bending of the folding device 300, or is synchronously flattened with the flattening of the folding device 300. Specifically, during the folding process, the first shell 110 and the second shell 120 drive the folding device 300 to rotate, so that the folding device 300 can enclose a water drop-shaped screen space, and the folding area 210 is bent with the folding device 300, and the folding area 210 is placed in the screen space after bending. During the flattening process, the first shell 110 and the second shell 120 drive the folding device 300 to rotate and flatten, and the folding area 210 is flattened with the folding device 300. The front side in the present application refers to the side facing the flexible member 200 , and the back side refers to the side facing away from the flexible member 200 .

[0035] Combination Figures 1 to 4 See also Figure 5 and Figure 6 , Figure 5 is a schematic diagram of the structure of the folding device 300 in some embodiments of the present application, Figure 6 yes Figure 5 Schematic diagram of the structural disassembly of the folding device 300 in the embodiment. The folding device 300 may include a base 310, a connecting assembly 320 and a supporting assembly 330. The base 310 is configured to be used for positioning and assembling the folding device 300. The connecting assembly 320 is connected to the base 310 and can rotate relative to the base 310. The supporting assembly 330 is connected to the connecting assembly 320 and can rotate relative to the connecting assembly 320.

[0036] Specifically, one end of the connecting component 320 can be rotatably connected to the base 310, and the other end can be rotatably connected to the supporting component 330, so that the supporting component 330 can rotate relative to the base 310. The base 310 can be located between the first shell 110 and the second shell 120, and corresponds to the folding area 210 of the flexible member 200.

[0037] The connection component 320 may be disposed between the support component 330 and the base 310 , and the support component 330 may be disposed between the base 310 and the flexible member 200 .

[0038] Further, part of the connecting assembly 320 may be disposed on the base 310, and another part may be disposed outside the base 310. The part of the connecting assembly 320 disposed on the base 310 is rotatably connected to the base 310, and the other part of the connecting assembly 320 disposed outside the base 310 is rotatably connected to the supporting assembly 330. The supporting assembly 330 is disposed outside the base 310 and can rotate relative to the base 310.

[0039] In one embodiment, the connection assembly 320 may include a first connection member 321 and a second connection member 322 that are disposed opposite to each other, and the first connection member 321 and the second connection member 322 are rotatably connected to opposite sides of the base 310. The support assembly 330 may include a first support member 331 and a second support member 332 that are disposed opposite to each other, and one end of the first connection member 321 is rotatably connected to the base 310, and the other end is rotatably connected to the first support member 331; one end of the second connection member 322 is rotatably connected to the base 310, and the other end is rotatably connected to the second support member 332.

[0040] Among them, the relative movement between the first shell 110 and the second shell 120 can drive the first connecting member 321 and the second connecting member 322 to rotate relative to the base 310, and then drive the first supporting member 331 and the second supporting member 332 to rotate relative to the base 310, so that the folding device 300 switches between the first state and the second state.

[0041] Optionally, one of the first connector 321 and the second connector 322 may be connected to the first shell 110, and the other may be connected to the second shell 120, so that when the first shell 110 and the second shell 120 move relative to each other, the first connector 321 and the second connector 322 may move relative to each other. Further, when the first support member 331 and the second support member 332 rotate relative to the base 310 to achieve folding, the first support member 331 and the second support member 332 may cooperate with the base 310 to enclose and form a screen space, which is roughly a circular space with a water drop bottom, so that the folding area 210 of the flexible member 200 can be accommodated in the screen space and present a water drop shape when folded.

[0042] In one embodiment, the first shell 110 and the second shell 120 can be symmetrically arranged along the base 310. The first connecting member 321 and the second connecting member 322 can be symmetrically arranged along the base 310. The first support member 331 and the second support member 332 can be symmetrically arranged along the base 310. Among them, the first shell 110 and the second shell 120 can be symmetrically arranged along the folding line of the flexible member 200, that is, the folding area 210 of the flexible member 200 can be symmetrically bent along the above folding line. Optionally, the folding line can be the center line of the base 310, that is, the base 310 can be symmetrically structured along the folding line. Optionally, the first connecting member 321 and the second connecting member 322 can be symmetrically arranged along the folding line. The first support member 331 and the second support member 332 can be symmetrically arranged along the folding line.

[0043] See again Figure 3 and Figure 4 , a first receiving groove 111 and a third receiving groove 113 connected to the first receiving groove 111 are provided on a side of the first shell 110 close to the second shell 120; a second receiving groove 122 and a fourth receiving groove 124 connected to the second receiving groove 122 are provided on a side of the second shell 120 close to the first shell 110. The first receiving groove 111 is provided on the front side of the first shell 110 close to the second shell 120, and the first receiving groove 111 does not pass through the opposite two sides and the back side of the first shell 110 to form a receiving groove in the front part of the first shell 110. The third receiving groove 113 is provided on the front side of the first shell 110 close to the first receiving groove 111, and the opposite ends of the third receiving groove 113 extend to the opposite two sides of the first shell 110 respectively to form a receiving groove in the front side of the first shell 110. The second receiving groove 122 is provided on the front side of the second shell 120 near the first shell 110, and the second receiving groove 122 does not penetrate the opposite two sides and the back side of the second shell 120, so as to form a receiving groove in the front part of the second shell 120. The fourth receiving groove 124 is provided on the front side of the second shell 120 near the second receiving groove 122, and the opposite ends of the fourth receiving groove 124 extend to the opposite two sides of the second shell 120, so as to form a receiving groove in the front side of the second shell 120. Further, the first receiving groove 111 of the first shell 110 and the second receiving groove 122 of the second shell 120 cooperate to form a receiving space for receiving the base 310 of the folding device 300.

[0044] Optionally, one end of the first connector 321 of the connecting assembly 320 enters the first receiving groove 111 to achieve rotational connection with the base 310, and the other end enters the third receiving groove 113 to achieve fixed connection with the first shell 110. One end of the second connector 322 of the connecting assembly 320 enters the second receiving groove 122 to achieve rotational connection with the base 310, and the other end enters the fourth receiving groove 124 to achieve fixed connection with the second shell 120. Further, one end of the first connector 321 of the connecting assembly 320 is located on the base 310 and is rotationally connected to the base 310, and the other end extends from the base 310 and is rotationally connected to the first support member 331. One end of the second connector 322 of the connecting assembly 320 is located on the base 310 and is rotationally connected to the base 310, and the other end extends from the base 310 and is rotationally connected to the second support member 332.

[0045] Optionally, the other end of the first connecting member 321 located outside the base 310 can be directly connected to the first supporting member 331, or can be connected to the supporting member 331 through a rotating shaft, hinge, slide groove or slide rail. The other end of the second connecting member 322 located outside the base 310 can be directly connected to the second supporting member 332, or can be connected to the second supporting member 332 through a rotating shaft, hinge, slide groove or slide rail.

[0046] The first connection member 321 can be fixedly connected to the first housing 110 by means of screw connection, clamping connection or welding, etc. The second connection member 322 can be fixedly connected to the second housing 120 by means of screw connection, clamping connection or welding, etc.

[0047] The "connection" in the description of the embodiment of the present application includes two situations: direct connection and indirect connection. For example, the connection between A and B includes direct connection between A and B or connection 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. It is understood that unless limited by modifiers, prefixes or suffixes, the "connection" referred to in the embodiment of the present application should be understood to include but not limited to fixed connection, rotational connection, sliding connection, pivoting, screwing, active connection, interference connection, friction connection, elastic connection, rigid connection, adhesive connection, etc. It is understood that the "fixed" referred to in the embodiment of the present application is not limited to the direct fixation of two elements, but can be fixed by a third party element or more elements. It is understood that the various specific connection relationships referred to in the present application, such as "rotational connection", "sliding connection", "rotational connection", "elastic connection", "rigid connection", "fixed connection", "active connection", "pivot", "screw connection", etc., are not limited to the direct connection of two elements, but can be connected by a third party element or more other elements, unless it is clearly stated that the two elements are directly connected.

[0048] In one embodiment, the base 310 may be provided with a first connection portion 311 and a second connection portion 312. The first connection portion 311 may be rotatably connected to the first support member 331 and may slide relative to the first support member 331. The second connection portion 321 may be rotatably connected to the second support member 332 and may slide relative to the second support member 332.

[0049] Specifically, the first connection part 311 and the second connection part 312 may be protruding structures convexly provided on the base 310. The first support member 331 may be directly rotatably connected to the first connection part 311, or may be rotatably connected to the first connection part 311 through a structure such as a rotating shaft or a hinge. The second support member 332 may be directly rotatably connected to the second connection part 312, or may be rotatably connected to the second connection part 312 through a structure such as a rotating shaft or a hinge.

[0050] It can be understood that the folding device 300 may include multiple groups of connection components 320, and each group of connection components 320 may include a first connection member 321 and a second connection member 322 symmetrically arranged along the base 310. One end of each first connection member 321 is rotatably connected to the base 310, and the other end is rotatably connected to the first support member 331; one end of each second connection member 322 is rotatably connected to the base 310, and the other end is rotatably connected to the second support member 332.

[0051] The folding device provided in the embodiment of the present application is configured with a first connecting portion and a second connecting portion on the base to respectively realize a rotational connection and a sliding connection with the first support member and the second support member, thereby enabling the first support member and the second support member to move relative to the base, thereby achieving a folding effect.

[0052] Combination Figure 5 and Figure 6 See also Figure 7 , Figure 7 3 is a schematic diagram of the structure of the support assembly 330 in some embodiments of the present application. Among them, one of the first connecting member 321 and the first supporting member 331 is provided with a first slide groove 341, and the other is provided with a first slider 351. The first slider 351 can move along the first slide groove 341 to guide the first supporting member 331 to rotate relative to the first connecting member 321. One of the second connecting member 322 and the second supporting member 332 is provided with a second slide groove 342, and the other is provided with a second slider 352. The second slider 352 can move along the second slide groove 342 to guide the second supporting member 332 to rotate relative to the second connecting member 322.

[0053] Optionally, a first slider 351 may be provided on the end of the first connecting member 321 located outside the base 310, a first slide groove 341 corresponding to the first slider 351 may be provided on the first supporting member 331, and the first slider 351 may move along the first slide groove 341. A second slider 352 may be provided on the end of the second connecting member 322 located outside the base 310, a second slide groove 342 corresponding to the second slider 352 may be provided on the second supporting member 332, and the second slider 352 may move along the second slide groove 342. The accompanying drawings are merely illustrative of the above-mentioned method, but are not limited thereto.

[0054] like Figure 5 and Figure 6 As shown, the folding device 300 can have multiple groups (for example, 2 groups) of connecting components 320, and the two groups of connecting components 320 are arranged and distributed in sequence along the extension direction of the folding line. Each connecting component 320 includes a first connecting member 321 and a second connecting member 322 that are arranged opposite to each other. One end of each first connecting member 321 is rotatably connected to the base 310, and the other end is rotatably connected to the first support member 331; one end of each second connecting member 322 is rotatably connected to the base 310, and the other end is rotatably connected to the second support member 332. The specific connection method is as described above. Among them, the base 310 can be an integral structure or a plurality of segmented structures. When the base 310 is a plurality of segmented structures, the plurality of segments of the base 310 are respectively connected to the plurality of connecting components 320.

[0055] Combination Figure 5 and Figure 6 See also Figure 8 , Figure 8: is a schematic diagram of the partial structural disassembly of the folding device 300 in some embodiments of the present application. Among them, a third slide groove 343 is provided on one of the first connecting member 321 and the base 310, and a third slider 353 is provided on the other. The third slider 353 can move along the third slide groove 343 to guide the first connecting member 321 to rotate relative to the base 310. A fourth slide groove 344 is provided on one of the second connecting member 322 and the base 310, and a fourth slider 354 is provided on the other; wherein the fourth slider 354 can move along the fourth slide groove 344 to guide the second connecting member 321 to rotate relative to the base 310.

[0056] Optionally, a third slider 353 may be provided on the end of the first connecting member 321 located on the base 310, a third slide groove 343 corresponding to the third slider 353 may be provided on the base 310, and the third slider 353 may move along the third slide groove 343. A fourth slider 354 may be provided on the end of the second connecting member 322 located on the base 310, a fourth slide groove 344 corresponding to the fourth slider 354 may be provided on the base 310, and the fourth slider 354 may move along the fourth slide groove 344. The accompanying drawings are merely illustrative of the above-mentioned method, but are not limited thereto.

[0057] In one embodiment, the base 310 may include: a base 313 for positioning and assembling the folding device 300, a movable portion 314 disposed on the base 313 and capable of moving relative to the base 313, and an elastic portion 315 disposed between the base 313 and the movable portion 314. The base 313 is assembled in a receiving space formed by the first receiving groove 111 and the second receiving groove 122. The movable portion 314 is disposed on a side of the base 313 close to the flexible member 200 and is movably connected to the base 313. The elastic member 313 is disposed between the movable portion 314 and the base 313, so that when the movable portion 314 moves relative to the base 313 under the action of an external force, elastic deformation can occur to generate elastic force. When the external force is removed, the movable portion 314 can be reset under the action of the elastic force.

[0058] The elastic part 315 may be an elastic structural member such as a spring or foam.

[0059] Among them, one end of the movable part 314 can be arranged in cooperation with the base 313 to form the third slide groove 343, and one end of the first connecting member 321 is inserted in the third slide groove 343 and can move along the third slide groove 343. In other words, the end of the first connecting member 321 inserted in the third slide groove 343 can be understood as the third slider 353, and the movable part 314 and the base 313 are respectively clamped on the opposite sides of the third slider 353. The other end of the movable part 314 can be arranged in cooperation with the base 313 to form the fourth slide groove 344, and one end of the second connecting member 322 is inserted in the fourth slide groove 344 and can move along the fourth slide groove 344. In other words, the end of the second connecting member 322 inserted in the fourth slide groove 344 can be understood as the fourth slider 354, and the movable part 314 and the base 313 are respectively clamped on the opposite sides of the fourth slider 354.

[0060] Therefore, when the folding device 300 drives the flexible member 200 to fold, the first support member 331 and the second support member 332 may be partially deformed because the flexible member 300 is bent and supported on the first support member 331 and the second support member 332. The local deformation of the first support member 331 and the second support member 332 acts on the first connecting member 321 and the second connecting member 322 respectively, thereby causing the movable portion 314 to move relative to the base 313 and act on the elastic portion 315 to generate deformation elastic force. When the folding device 300 drives the flexible member 200 to unfold, the above elastic force can reset the movable portion 314.

[0061] See also Fig. 9 , Fig. 9 3 is a schematic diagram of the structural disassembly of the folding device 300 in some other embodiments of the present application. The difference between this embodiment and the folding device 300 in the aforementioned embodiment is that the base 310 may also include a back cover 316. Specifically, the back cover 316 may have a first surface 3161 and a second surface 3162 that are opposite to each other. The first surface 3161 may be the surface of the back cover 316 facing away from the folding area 210 of the flexible member 200, and the second surface 3162 may be the surface of the back cover 316 facing the folding area 210 of the flexible member 200. Furthermore, the first surface 3161 may be the appearance surface of the back cover 316, which may play a certain role in shielding and decoration. Figures 1 to 4As shown, when the first shell 110 and the second shell 120 are in a flattened state, the first surface 3161 can be hidden inside the electronic device 10; when the first shell 110 and the second shell 120 are in a folded state, the first surface 3161 can be at least partially exposed to the outside of the electronic device 10. Optionally, when the first shell 110 and the second shell 120 are in a flattened state, the first surface 3161 is blocked by the first shell 110 and the second shell 120; when the first shell 110 and the second shell 120 are in a folded state, the first surface 3161 can be at least partially exposed to the outside of the electronic device 10. It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indication will also change accordingly.

[0062] The back cover 316 and the base 313 may be integrally formed structural members. In addition, in some embodiments, the back cover 316 and the base 313 may be formed separately and then assembled.

[0063] As mentioned above, the base 310 may be provided with a first connection portion 311 and a second connection portion 312. The first connection portion 311 may be rotatably connected to the first support member 331 and may slide relative to the first support member 331. The second connection portion 321 may be rotatably connected to the second support member 332 and may slide relative to the second support member 332.

[0064] Further, the first connection part 311 and the second connection part 312 are arranged on the base part 313 and are arranged at intervals. The first connection member 321 and the second connection member 322 can be arranged between the first connection part 311 and the second connection part 312; or, one of the first connection member 321 and the second connection member 322 is arranged between the first connection part 311 and the second connection part 312, and the other is arranged on the side of the first connection part 311 away from the second connection part 312 or the side of the second connection part 312 away from the first connection part 311; or, one of the first connection member 321 and the second connection member 322 is arranged on the side of the first connection part 311 away from the second connection part 312, and the other is arranged on the side of the second connection part 312 away from the first connection part 311.

[0065] The following description will be made by taking the example that the first connecting member 321 and the second connecting member 322 are disposed between the first connecting portion 311 and the second connecting portion 312, but the description is not limited thereto. Optionally, the first connecting member 321 may be rotatably connected to the base 310 directly or via a rotating shaft, and the second connecting member 322 may be rotatably connected to the base 310 directly or via a rotating shaft.

[0066] See again Figure 7 and Figure 8 , one of the support assembly 330 and the base 310 is provided with a track groove 360, and the other is provided with an axis portion 370 corresponding to the track groove 360, and the axis portion 370 cooperates with the track groove 360 ​​to enable the folding device 300 to switch between the first state and the second state. Optionally, the track groove 360 ​​can be provided on the side of the support assembly 330 away from the flexible member 200, and the axis portion 370 can be provided on the base 313 of the base 310, but is not limited thereto.

[0067] Specifically, one of the first connection portion 311 and the first support member 331 is provided with a first track groove 361, and the other is provided with a first shaft portion 371, and the first shaft portion 371 can move along the first track groove 361 and can rotate relative to the first track groove 361. Optionally, the first track groove 361 can be provided on a side of the first support member 331 close to the first connection portion 331, and the first shaft portion 371 is provided on the first connection portion 311 and can cooperate with the first track groove 361.

[0068] One of the second connection portion 312 and the second support member 332 is provided with a second track groove 362, and the other is provided with a second shaft portion 372, and the second shaft portion 372 can move along the second track groove 362 and can rotate relative to the second track groove 362. Optionally, the second track groove 362 can be provided on a side of the second support member 332 close to the second connection portion 312, and the second shaft portion 372 is provided on the second connection portion 312 and can cooperate with the second track groove 362.

[0069] Of course, in other embodiments, the first track groove 361 can be provided on the first connection portion 331, and the first shaft portion 371 can be provided on the first support member 331. The second track groove 362 can be provided on the second connection portion 312, and the second shaft portion 372 can be provided on the second support member 332.

[0070] The first connecting member 321 may be a plate-shaped body, a rod-shaped body or other structures. The second connecting member 322 may be a plate-shaped body, a rod-shaped body or other structures.

[0071] The axis of the shaft portion 370 is parallel to the folding line of the folding device 300 .

[0072] As mentioned above, two first connecting members 321 and two second connecting members 322 are provided respectively. Correspondingly, two first shaft portions 371 and two second shaft portions 372 are provided respectively, and two first track grooves 361 and two second track grooves 362 are provided respectively, so as to ensure the stability of the folding device 300.

[0073] Further, the first shaft portion 371 can move along the first track groove 361 and can rotate relative to the first track groove 361 to guide the first support member 331 to rotate relative to the base 310. The second shaft portion 372 can move along the second track groove 362 and can rotate relative to the second track groove 362 to guide the second support member 332 to rotate relative to the base 310.

[0074] In one embodiment, the connection assembly 320 may further include a third connection member 323 and a fourth connection member 324 that are arranged opposite to each other, and the third connection member 323 and the fourth connection member 324 are rotatably connected to opposite sides of the base 310. One end of the third connection member 323 is rotatably connected to the base 310, and the other end is rotatably connected to the first support member 331. One end of the fourth connection member 324 is rotatably connected to the base 310, and the other end is rotatably connected to the second support member 332.

[0075] The end of the third connecting member 323 connected to the first supporting member 331 can also be fixedly connected to the first shell 110, and the end of the fourth connecting member 324 connected to the second supporting member 332 can also be fixedly connected to the second shell 120. The relative movement between the first shell 110 and the second shell 120 can drive the third connecting member 323 and the fourth connecting member 324 to rotate relative to the base 310, and then drive the first supporting member 331 and the second supporting member 332 to rotate relative to the base 310, so that the folding device 300 can switch between the first state and the second state.

[0076] When two first connectors 321 and two second connectors 322 are provided respectively, the third connector 323 may be provided between the two first connectors 321 , and the fourth connector 324 may be provided between the two second connectors 322 , but the present invention is not limited thereto.

[0077] It can be understood that regarding the technical features of the third connecting member 323 and the fourth connecting member 324 that are not fully described in detail, reference can be made to the relevant descriptions of the first connecting member 321 and the second connecting member 322 in the aforementioned embodiments, and therefore they will not be repeated here.

[0078] In one embodiment, the base 310 may further be provided with a third connection portion 317 and a fourth connection portion 318. The third connection portion 317 may be rotatably connected to the first support member 331 and may slide relative to the first support member 331. The fourth connection portion 318 may be rotatably connected to the second support member 332 and may slide relative to the second support member 332.

[0079] Further, the third connection part 317 and the fourth connection part 318 can be arranged on the base 313 and spaced apart. The third connection member 323 and the fourth connection member 324 can be arranged on the same side of the third connection part 317 and the fourth connection part 318, or the third connection member 323 and the fourth connection member 324 can be arranged between the third connection part 317 and the fourth connection part 318.

[0080] The following description will be made by taking the third connecting member 323 and the fourth connecting member 324 as being disposed on the same side of the third connecting portion 317 and the fourth connecting portion 318 as an example, but the description is not limited thereto. Optionally, the first supporting member 331 may be rotatably connected to the third connecting portion 317 directly or via a rotating shaft, and the second supporting member 332 may be rotatably connected to the fourth connecting portion 318 directly or via a rotating shaft.

[0081] In one embodiment, one of the third connection portion 317 and the first support member 331 is provided with a third track groove 363, and the other is provided with a third shaft portion 373, and the third shaft portion 373 can move along the third track groove 363 and can rotate relative to the third track groove 363. Optionally, the first track groove 361 can be provided on a side of the first support member 331 close to the third connection portion 317, and the third shaft portion 373 is provided on the third connection portion 317 and can cooperate with the third track groove 363.

[0082] A fourth track groove 364 is provided on one of the fourth connection portion 318 and the second support member 332, and a fourth shaft portion 374 is provided on the other, and the fourth shaft portion 374 can move along the fourth track groove 364 and can rotate relative to the fourth track groove 364. Optionally, the fourth track groove 364 can be provided on a side of the second support member 332 close to the fourth connection portion 318, and the fourth shaft portion 374 is provided on the fourth connection portion 318 and can cooperate with the fourth track groove 364.

[0083] Of course, in other embodiments, the third track groove 363 may be provided on the third connection portion 317, and the third shaft portion 373 may be provided on the first support member 331. The fourth track groove 364 may be provided on the fourth connection portion 318, and the fourth shaft portion 374 may be provided on the second support member 332.

[0084] In summary, when the first support member 331 is rotated relative to the base 310 by an external force, while driving the first connecting member 321 and the third connecting member 323 to rotate relative to the base 310, the first support member 331 can also rotate relative to the first connecting member 321 and the third connecting member 323. At this time, the first shaft portion 371 rotates relative to the first track groove 361 while moving along the first track groove 361, and the third shaft portion 373 rotates relative to the third track groove 363 while moving along the third track groove 363.

[0085] When the second support member 332 is rotated relative to the base 310 by an external force, the second support member 332 can also rotate relative to the second connection member 322 and the fourth connection member 324 while driving the second connection member 322 and the fourth connection member 324 to rotate relative to the base 310. At this time, the second shaft portion 372 rotates relative to the second track groove 362 while moving along the second track groove 362, and the fourth shaft portion 374 rotates relative to the fourth track groove 364 while moving along the fourth track groove 364.

[0086] The folding device provided in the embodiment of the present application is rotatably connected to the base by the first connecting member and the second connecting member, and the first connecting member is rotatably connected to the first support member, and the second connecting member is rotatably connected to the second support member, so that the folding device can switch between the first state and the second state, and the overall structure is relatively simple. At the same time, the track groove cooperates with the shaft portion to further ensure the stability of the movement of the folding device and the certainty of the movement track. In addition, the first connecting member and the second connecting member are fixedly connected to the first shell and the second shell, respectively, which can ensure the consistency of the overall movement of the folding device.

[0087] As mentioned above, there are multiple track grooves and shaft parts, and they are arranged one by one. While ensuring the stability of the folding device movement, due to the influence of assembly tolerance and process tolerance, abnormal noise may be generated between some shaft parts and track grooves during the movement of the folding device. In order to solve the technical problem of generating abnormal noise, the present application further improves the above technical solution.

[0088] See also Fig.10 and Fig.11 , Fig.10 is a schematic diagram of the structure of the folding device 300 in some embodiments of the present application, Fig.11 yes Fig.10 Schematic diagram of the cross-sectional structure of the folding device 300 along the AA direction in the embodiment. The track groove 360 ​​has a first end 3601 and a second end 3602 opposite to each other. When the folding device 300 is in the first state, the shaft portion 370 can be located at the first end 3601 of the track groove 360; when the folding device 300 is in the second state, the shaft portion 370 can be located at the second end 3602 of the track groove 360. The first end 3601 can be a closed end of the track groove 360, and the second end 3602 can be an open end of the track groove 360. The open end is used for the shaft portion 370 to enter the track groove 360 ​​from the open end of the track groove 360 ​​when the support assembly 330 is assembled.

[0089] In the flattened state of the folding device 300, i.e., the first state, the first support member 331 and the second support member 332 jointly support the folding area 210 of the flexible member 200, and the first support member 331 and the second support member 332 jointly support the surface of the folding area 210 and the surface of the first shell 110 and the second shell 120 supported in the non-folding area 220 are substantially coplanar.

[0090] In the folded state of the folding device 300, i.e., the second state, the first support member 331 and the second support member 332 are jointly arranged to form a screen space that can accommodate the folding area 210. Further, in the first state, the folding area 210 of the flexible member 200 respectively contacts the first support member 331 and the second support member 332, which may cause the first support member 331 and the second support member 332 to partially deform. Among them, the deformation areas of the first support member 331 and the second support member 332 are most likely concentrated in their respective middle areas, so that when the folding device 300 switches from the second state to the first state, the shaft portion 370 corresponding to the deformation area may contact the inner wall of the first end of the track groove 360 ​​in priority to the shaft portion 370 in other areas, and the shaft portion 370 can not only move relative to the track groove 360, but also rotate relative to the track groove 360, so in the subsequent folding process, the shaft portion 370 corresponding to the deformation area and the track groove 360 ​​may cause friction noise and affect the user experience.

[0091] Based on this, in the first state, there is a gap J between the part of the shaft portion 370 and the inner wall of the first end of the corresponding track groove 360 ​​to avoid the above-mentioned abnormal sound. Specifically, there is a gap J between the shaft portion 370 corresponding to the deformation area and the inner wall of the first end of the corresponding track groove 360 ​​to avoid the support assembly 330 from generating abnormal sound during the folding process due to deformation.

[0092] Of course, in other embodiments, a gap J may also be provided between the shaft portion 370 corresponding to other regions of the support assembly 330 and the inner wall of the first end of the corresponding track groove 360 ​​.

[0093] The gap J is generally not less than 0.1 mm, for example, it can be 0.15 mm, or 0.2 mm.

[0094] For example, when the folding device 300 includes two sets of connection components 320, the two sets of connection components 320 are respectively arranged corresponding to the two ends of the support component 330. At this time, in the first state of the folding device 300, there may be a gap J between the first shaft portion 371 and the inner wall of the first end of the first track groove 361; or there may be a gap J between the second shaft portion 372 and the inner wall of the first end of the second track groove 362.

[0095] For another example, when the folding device 300 further includes a third connecting member 323 and a fourth connecting member 324 which are arranged corresponding to the middle area of ​​the supporting assembly 330, in the first state of the folding device 300, there is a gap J between the third axis portion 373 and the inner wall of the first end of the third track groove 363, and there is a gap J between the fourth axis portion 374 and the inner wall of the first end of the fourth track groove 364.

[0096] It should be noted that the gap J setting area described in the above embodiment is only exemplarily described, but is not limited thereto, and those skilled in the art can flexibly replace it according to the structure of the folding device 300. It should be understood that other variant implementations directly derived by those skilled in the art based on the embodiments of the present application should all be within the protection scope of the present application.

[0097] The folding device and electronic device provided in the embodiments of the present application can avoid abnormal noise caused by friction between the shaft and the track groove during the folding process, thereby affecting the user experience, by setting a gap between part of the shaft and the inner wall of the first end of the track groove.

[0098] See also Fig.12 , Fig.12 yes Fig.10 Schematic diagram of the cross-sectional structure of the folding device 300 along the BB direction in the embodiment. The track groove 360 ​​may include a first curved wall 360a and a second curved wall 360b arranged opposite to each other, and a third curved wall 360c arranged between the first curved wall 360a and the second curved wall 360b. The third curved wall 360c is configured to form an inner wall of the first end of the track groove 360. In the first state of the folding device 300, the first curved wall 360a may be located on a side of the second curved wall 360b close to the base 310.

[0099] The first arc-shaped wall 360 a and / or the second arc-shaped wall 360 b may be configured to define a trajectory of movement of the shaft portion 370 relative to the trajectory groove 360 ​​.

[0100] In some embodiments, a convex portion C may be provided on the first arc-shaped wall 360a to cooperate with the track groove 360 ​​to limit the moving track of the shaft portion 370. During the folding process of the folding device 300, the shaft portion 370 hits the convex portion C, which may generate an abnormal sound.

[0101] Based on this, the embodiment of the present application proposes a further improvement. During the folding process of the folding device 300, the flexible part 200 contacts the supporting assembly 330, and the protrusion C does not affect the movement trajectory of the shaft 370. Therefore, the protrusion C can be eliminated or the protrusion C can be enlarged to form a smooth transition, thereby avoiding the abnormal noise caused by the shaft 370 hitting the protrusion C.

[0102] Specifically, in the first state of the folding device 300, the shaft portion 370 is located at the first end of the track groove 360, that is, the shaft portion 370 is located between the first arc-shaped wall 360a and the second arc-shaped wall 360b, and is close to the third arc-shaped wall 360c. In other words, in the first state of the folding device 300, the shaft portion 370 can be located on the joint of the third arc-shaped wall 360c and the first arc-shaped wall 360a. Further, the first arc-shaped wall 360a extends from the above-mentioned joint toward the side away from the second arc-shaped wall 360b, so as to avoid the shaft portion 370 from hitting and generating abnormal noise when moving relative to the track groove 360.

[0103] The folding device and electronic device provided in the embodiments of the present application can avoid abnormal noise caused by the shaft hitting the convex part during the folding process by eliminating the convex part provided on the track groove, thereby improving the user experience.

[0104] As mentioned above, based on the symmetrical structural distribution of the connection components and the support components relative to the base, only some features are specifically described in the above embodiments of the present application, and other variations directly derived by technical personnel in this field based on the embodiments of the present application should fall within the scope of the present application.

[0105] The folding device and electronic device provided in the embodiments of the present application are configured such that the first connecting member and the second connecting member are rotatably connected to the base respectively, and the first connecting member is rotatably connected to the support member, and the second connecting member is slidably connected to the support member, so that the support member can move away from or closer to the base while rotating relative to the base, and the overall structure is relatively simple.

[0106] In addition, the folding device and electronic device provided in the embodiments of the present application can ensure the consistency of the overall folding movement of the folding device by symmetrically arranging the connecting components and the supporting components and fixing the two supporting components to the first shell and the second shell respectively.

[0107] The folding device and electronic device provided in the embodiment of the present application are configured such that the first connecting member and the second connecting member are rotatably connected to the base respectively, and the first connecting member is rotatably connected to the first supporting member, and the second connecting member is rotatably connected to the second supporting member, so that the folding device can switch between the first state and the second state, and the overall structure is relatively simple. At the same time, the cooperation between the track groove and the shaft portion can further ensure the stability of the movement of the folding device and the certainty of the movement trajectory, and by setting a gap between the inner wall of the first end of the part of the shaft portion and the track groove, it is possible to avoid the friction between the shaft portion and the track groove during the folding process to produce abnormal noise, thereby affecting the user experience. In addition, by eliminating the convex portion provided on the track groove, it is possible to avoid the abnormal noise caused by the shaft portion hitting the convex portion during the folding process, thereby improving the user experience.

[0108] The present application also provides a mobile terminal device. Fig.13 , Fig.13 It is a schematic block diagram of the structure of a mobile terminal device 900 in other embodiments of the present application. The mobile terminal device 900 may be a mobile phone, a tablet computer, a laptop computer, a wearable device, etc. The embodiment of the present application is illustrated with a mobile phone as an example. The structure of the mobile terminal device 900 may generally include an RF circuit 910, a memory 920, an input unit 930, a display unit 940 (i.e., the flexible member 200 in the above embodiment), a sensor 950, an audio circuit 960, a wifi module 970, a processor 980, and a power supply 990, etc. Among them, the RF circuit 910, the memory 920, the input unit 930, the display unit 940, the sensor 950, the audio circuit 960, and the wifi module 970 are respectively connected to the processor 980; the power supply 990 is used to provide power to the entire mobile terminal device 900.

[0109] Specifically, the RF circuit 910 is used to receive and send signals; the memory 920 is used to store data instruction information; the input unit 930 is used to input information, which may specifically include a touch panel 931 and other input devices 932 such as operation buttons; the display unit 940 may include a display panel 941 (i.e., the flexible member 200 in the above embodiment); the sensor 950 includes an infrared sensor, a laser sensor, a pressure sensor and a position sensor in the above embodiment, etc., for detecting user approach signals, distance signals, pressure signals and position signals; the speaker 961 and the microphone (or microphone) 962 are connected to the processor 980 through the audio circuit 960 for receiving and sending sound signals; the wifi module 970 is used to receive and transmit wifi signals, and the processor 980 is used to process data information of the mobile terminal device. It can be understood that the technical features not fully described in the embodiments of the present application can refer to the specific description in the above embodiments, so this embodiment will not be repeated.

[0110] It should be noted that the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0111] The above descriptions are only some embodiments of the present application, and do not limit the protection scope of the present application. Any equivalent device or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A folding device, characterized in that: include: Base, connection components and support components; The connecting assembly is arranged between the base and the supporting assembly, one end of the connecting assembly is rotatably connected to the base, and the other end is rotatably connected to the supporting assembly; One of the support assembly and the base is provided with a track groove, and the other is provided with an axis portion corresponding to the track groove, and the axis portion cooperates with the track groove to enable the folding device to switch between a first state and a second state; Wherein, the trajectory groove has a first end and a second end relative to each other. In the first state, the shaft portion is located at the first end of the trajectory groove, and in the second state, the shaft portion is located at the second end of the trajectory groove; the trajectory groove and the shaft portion are respectively provided with multiple and one-to-one correspondence. In the first state, there is a gap between part of the shaft portion and the corresponding inner wall of the first end.

2. The folding device according to claim 1, characterized in that: The first end is a closed end of the track groove, and the second end is an open end of the track groove.

3. The folding device according to claim 1, characterized in that: The track groove comprises a first arcuate wall and a second arcuate wall which are arranged opposite to each other, and a third arcuate wall which is arranged between the first arcuate wall and the second arcuate wall, wherein the third arcuate wall is configured to form an inner wall of the first end; in the first state, the first arcuate wall is located on a side of the second arcuate wall close to the base; Wherein, in the first state, the shaft portion is located on a joint portion between the third arc-shaped wall and the first arc-shaped wall, and the first arc-shaped wall extends from the joint portion toward a direction away from the second arc-shaped wall.

4. The folding device according to claim 1, characterized in that: The connecting assembly comprises a first connecting member and a second connecting member which are arranged opposite to each other, wherein the first connecting member and the second connecting member are rotatably connected to opposite sides of the base respectively; The support assembly includes a first support member and a second support member that are arranged opposite to each other; One end of the first connecting member is rotatably connected to the base, and the other end is rotatably connected to the first supporting member; one end of the second connecting member is rotatably connected to the base, and the other end is rotatably connected to the second supporting member.

5. The folding device according to claim 4, characterized in that: The base is provided with a first connecting portion and a second connecting portion, A first track groove is provided on one of the first connecting portion and the first supporting member, and a first shaft portion is provided on the other of the first connecting portion and the first supporting member, wherein the first shaft portion can move along the first track groove and can rotate relative to the first track groove; A second track groove is provided on one of the second connecting portion and the second supporting member, and a second shaft portion is provided on the other; the second shaft portion can move along the first track groove and can rotate relative to the second track groove.

6. The folding device according to claim 5, characterized in that: In the first state, there is a gap between the first shaft portion and the inner wall of the first end of the first track groove; or, in the first state, there is a gap between the second shaft portion and the inner wall of the first end of the second track groove.

7. The folding device according to claim 5, characterized in that: The connecting assembly comprises a third connecting member and a fourth connecting member which are arranged opposite to each other, and the third connecting member and the fourth connecting member are rotatably connected to opposite sides of the base respectively; One end of the third connecting member is rotatably connected to the base, and the other end is rotatably connected to the first supporting member; one end of the fourth connecting member is rotatably connected to the base, and the other end is rotatably connected to the second supporting member; The base is also provided with a third connecting portion and a fourth connecting portion. A third track groove is provided on one of the third connecting portion and the first supporting member, and a third shaft portion is provided on the other of the third connecting portion and the first supporting member, wherein the third shaft portion can move along the third track groove and can rotate relative to the third track groove; A fourth track groove is provided on one of the fourth connection portion and the second support member, and a fourth shaft portion is provided on the other; the fourth shaft portion can move along the fourth track groove and can rotate relative to the fourth track groove. Wherein, in the first state, there is a gap between the third shaft portion and the inner wall of the first end of the third track groove, and there is a gap between the fourth shaft portion and the inner wall of the first end of the fourth track groove.

8. The folding device according to claim 4, characterized in that: A first slide groove is provided on one of the first connecting member and the first supporting member, and a first slider is provided on the other one; wherein the first slider can move along the first slide groove to guide the first supporting member to rotate relative to the first connecting member; A second slide groove is provided on one of the second connecting member and the second supporting member, and a second slider is provided on the other one; wherein the second slider can move along the second slide groove to guide the second supporting member to rotate relative to the second connecting member.

9. The folding device according to claim 8, characterized in that: A third slide groove is provided on one of the first connecting member and the base, and a third slider is provided on the other; wherein the third slider can move along the third slide groove to guide the first connecting member to rotate relative to the base; A fourth slide groove is provided on one of the second connecting member and the base, and a fourth slider is provided on the other one; wherein the fourth slider can move along the fourth slide groove to guide the second connecting member to rotate relative to the base.

10. An electronic device, characterized in that: Comprising the folding device according to any one of claims 1-9.

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