Folding electronic device

Abstract

The invention provides folding electronic equipment, and belongs to the technical field of electronics. The folding electronic equipment comprises a rotating shaft device, at least two middle frame structures and a flexible screen, the adjacent middle frame structures are respectively connected with the rotating shaft device; the flexible screen covers the at least two middle frame structures and the rotating shaft device; the distance between the edge, facing the middle frame structure, of the rotating shaft device and the flexible screen is larger than zero. According to the folding electronic equipment, the stress borne by the flexible screen in the unfolding and closing process is dispersed, and the problem that the flexible screen is folded due to large local stress is solved.

Description

Technical Field

[0001] The present application relates to the field of electronic technology, and in particular to a foldable electronic device. Background Art

[0002] With the continuous development of electronic information technology, various intelligent electronic devices emerge in an endless stream. Among them, the birth of foldable electronic devices has further improved the portability of electronic devices. Common foldable electronic devices include foldable screen mobile phones, foldable tablet computers, etc.

[0003] In the related art, the flexible screen of the foldable electronic device undergoes irreversible plastic deformation due to external force, which causes creases on the flexible screen and affects the product quality of the foldable electronic device. Summary of the invention

[0004] The present application provides a foldable electronic device that can solve the problem of creases on flexible screens.

[0005] The technical solution is as follows:

[0006] On the one hand, a foldable electronic device is provided, the foldable electronic device comprising: a hinge device, two middle frame structures and a flexible screen;

[0007] The two middle frame structures are respectively connected to the rotating shaft devices;

[0008] The flexible screen is covered on the two middle frame structures and the rotating shaft device;

[0009] The distance d1 between the hinge device and the edge of the middle frame structure and the flexible screen is greater than zero.

[0010] In some embodiments, the hinge device includes two support members, which are respectively located at edges of the hinge device close to the middle frame structure, and a distance d2 between the support members and the edges of the middle frame structure facing the flexible screen is greater than zero.

[0011] In some embodiments, the distance d2 between the support member and the flexible screen increases along a direction approaching the middle frame structure.

[0012] In some embodiments, the foldable electronic device includes a closed state and a flattened state;

[0013] In the closed state, the distance between the edge of the support member facing the middle frame structure and the flexible screen is greater than zero;

[0014] In the flattened state, the minimum distance between the support member and the flexible screen is greater than the average distance between the middle frame structure and the flexible screen.

[0015] In some embodiments, the rotating shaft device includes a middle support assembly and a fixing member, the fixing member is rotatably connected to the middle support assembly, and the middle frame structure is connected to the fixing member;

[0016] In the closed state, the fixing member and the middle support assembly enclose a screen-accommodating space, and at least a portion of the flexible screen is folded in the screen-accommodating space to form an inner bending portion;

[0017] A groove portion is provided on a surface of the middle support assembly facing the screen space, at least a portion of the inner bending portion is located in the groove portion, and a curvature of the groove portion is smaller than a curvature of the inner bending portion.

[0018] In some embodiments, in the closed state, the inner bending portion is symmetrical along a first plane, and the intersection of the first plane and the inner bending portion forms a first fitting portion;

[0019] The groove portion is symmetrical along a second plane, and the intersection of the second plane and the groove portion forms a second fitting portion;

[0020] The first bonding portion contacts the second bonding portion, and the first plane and the second plane overlap.

[0021] In some embodiments, the rotating shaft device further includes a track member, the track member is located between the middle support assembly and the fixed member, and the track member is used to limit the movement of the fixed member relative to the middle support assembly along a target track;

[0022] In the closed state, the distance d3 between the track member and the flexible screen increases gradually in the direction approaching the middle support assembly.

[0023] In some embodiments, the track member includes a first contact surface facing the flexible screen, the distance d31 between the first contact surface at one end away from the middle support component and the flexible screen is greater than or equal to zero, and the distance d32 between the first contact surface at one end close to the middle support component and the flexible screen is greater than zero.

[0024] In some embodiments, the rotating shaft device further comprises a synchronous member, the synchronous member is located between the middle support assembly and the fixed member, and the synchronous member is used to drive the fixed member to move synchronously with respect to the middle support assembly;

[0025] In the closed state, a distance d4 between the synchronizer and the flexible plane is greater than zero.

[0026] In some embodiments, in the closed state, the track member includes a first contact surface facing the flexible screen, the synchronization member includes a second contact surface facing the flexible screen, and the first contact surface and the second contact surface are arranged in sequence in a direction away from the middle support assembly;

[0027] A first distance is set between the first contact surface and the flexible screen, and a second distance is set between the second contact surface and the flexible screen, wherein a difference between the first distance and the second distance is less than or equal to a target threshold.

[0028] In some embodiments, a third distance is set between one end of the first contact surface close to the middle support component and the flexible screen, and a fourth distance is set between one end of the second contact surface away from the middle support component and the flexible screen, wherein the third distance is equal to the fourth distance.

[0029] The beneficial effects of the technical solution provided by this application include at least:

[0030] In the foldable electronic device of the present application, the hinge device and the middle frame structure jointly support the flexible screen. The distance between the edge of the hinge device facing the middle frame structure and the flexible screen is greater than zero, so that the edge of the hinge device facing the middle frame structure does not contact the flexible screen, and the edge of the hinge device does not cause external force to the flexible screen. The flexible screen relies on the middle frame structure with a larger contact area for support, which is conducive to dispersing the stress on the flexible screen during the flattening and closing process, and solves the problem of creases on the flexible screen due to large local force. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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.

[0032] Figure 1 is a schematic diagram of the structure of a foldable electronic device in a flattened state provided by an embodiment of the present application;

[0033] Figure 2 is a schematic structural diagram of a foldable electronic device in a closed state provided by an embodiment of the present application;

[0034] Figure 3 yes Figure 1 A partial enlarged view of the middle part;

[0035] Figure 4 yes Figure 2 A partial enlarged view of point B in the middle;

[0036] Figure 5 This is a schematic diagram of the cooperation between the first bonding portion and the second bonding portion provided in an embodiment of the present application;

[0037] Figure 6 yes Figure 2 A partial enlarged view of point C in the middle.

[0038] The reference numerals in the figures represent respectively:

[0039] 10. Rotating shaft device;

[0040] 101. Support member;

[0041] 102, middle support assembly; 1021, screen space; 1022, groove portion; 10221, second laminating portion;

[0042] 103. Fixing parts;

[0043] 104. Track member; 1041. First contact surface;

[0044] 105. Synchronous member; 1051. Second contact surface;

[0045] 20. Middle frame structure;

[0046] 30. Flexible screen;

[0047] 301, inner bending portion; 3011, first laminating portion;

[0048] 001, first plane; 002, second plane. DETAILED DESCRIPTION

[0049] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0050] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the attached Figure 1The orientation or positional relationship shown is only for the convenience of describing the present application and simplifying the description, and does not 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 should not be understood as a limitation on the present application.

[0051] It should be understood that in this application, "electrical connection" can be understood as physical contact and electrical conduction between components; it can also be understood as a form of connection between different components in the circuit structure through physical lines such as printed circuit board (PCB) copper foil or wires that can transmit electrical signals. "Communication connection" can refer to electrical signal transmission, including wireless communication connection and wired communication connection. Wireless communication connection does not require a physical medium and does not belong to a connection relationship that limits the product structure. "Connection" and "connected" can both refer to a mechanical connection relationship or a physical connection relationship, that is, A is connected to B or A is connected to B, which can mean that there is a fastening component (such as screws, bolts, rivets, etc.) between A and B, or A and B are in contact with each other and A and B are difficult to separate.

[0052] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meanings as commonly understood by those of ordinary skill in the art.

[0053] The present application provides a foldable electronic device. Specifically, the foldable electronic device can be any one of various types of computer system devices that are mobile or portable and perform flexible display functions ( Figure 1 Specifically, the foldable electronic device may be a mobile phone or a smart phone (e.g., a phone based on iPhone TM, a phone based on Android TM), a portable gaming device (e.g., Nintendo DS TM, PlayStation Portable TM, Gameboy Advance TM, iPhone TM), a laptop computer, a PDA, a portable Internet device, a music player, and a data storage device, other handheld devices, and devices such as headphones, etc. The electronic device may also be other wearable devices that require flexible display (e.g., a head mounted device (HMD) such as an electronic bracelet, an electronic necklace, an electronic device, or a smart watch).

[0054] The electronic device can also be any one of a plurality of electronic devices, including but not limited to cellular phones, smart phones, other wireless communication devices, personal digital assistants, audio players, other media players, music recorders, video recorders, other media recorders, radios, medical devices, vehicle transportation instruments, calculators, programmable remote controls, pagers, laptop computers, desktop computers, printers, netbook computers, personal digital assistants (PDAs), portable multimedia players (PMPs), Moving Picture Experts Group (MPEG-1 or MPEGG-2) Audio Layer 3 (MP3) players, portable medical devices, and digital cameras and combinations thereof.

[0055] In some cases, the electronic device can perform multiple functions (e.g., play music, display video, store pictures, and receive and send phone calls). If desired, the electronic device can be a device such as a cellular phone, a media player, other handheld device, a wristwatch device, a pendant device, a handset device, or other compact portable device.

[0056] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0057] On the one hand, combined with Figure 1 , Figure 2 As shown, this embodiment provides a foldable electronic device, which includes: a hinge device 10, at least two middle frame structures 20 and a flexible screen 30; adjacent middle frame structures 20 are respectively connected to the hinge device 10; the flexible screen 30 is covered on at least two middle frame structures 20 and the hinge device 10; the distance d1 between the hinge device 10 and the edge of the middle frame structure 20 and the flexible screen 30 is greater than zero.

[0058] In the foldable electronic device of the present embodiment, the hinge device 10 and the middle frame structure 20 jointly support the flexible screen 30. The distance between the edge of the hinge device 10 facing the middle frame structure 20 and the flexible screen 30 is greater than zero, so that the edge of the hinge device 10 facing the middle frame structure 20 does not contact the flexible screen 30, and the edge of the hinge device 10 does not cause external force to the flexible screen 30. The flexible screen 30 relies on the middle frame structure 20 with a larger contact area for support, which is conducive to dispersing the stress on the flexible screen 30 during the flattening and closing process, and solves the problem of creases on the flexible screen 30 due to large local force.

[0059] In some possible implementations, the flexible screen 30 includes a display surface and a non-display surface, wherein the non-display surface is respectively connected to two middle frame structures 20 and the hinge device 10, and when the middle frame structure 20 is flattened or closed relative to the hinge device 10, it can drive the flexible screen 30 to flatten or fold, thereby realizing the unfolding and folding of the electronic device.

[0060] On the non-display surface of the flexible screen 30, the two middle frame structures 20 and the hinge device 10 jointly play a supporting role. By setting the distance d1 between the edge of the hinge device 10 and the non-display surface of the flexible screen 30 to be greater than zero, the edge of the hinge device 10 can be prevented from pressing upward against the flexible screen 30, so that the flexible screen 30 generates a fold at the edge of the hinge device 10.

[0061] In some other possible implementations, the foldable electronic device includes a closed state and a flattened state. In the closed state and the flattened state, a distance d1 between the edge of the hinge device 10 and the flexible screen 30 is greater than zero.

[0062] In some possible implementations, the distance d1 between the edge of the hinge device 10 and the flexible screen 30 satisfies 0<d1≤1.0mm. Exemplarily, the value of the distance d1 is, for example, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, etc.

[0063] In some other possible implementations, the flexible screen 30 includes a flexible display panel. The structure of the flexible display panel has various forms.

[0064] Exemplarily, the display panel includes a substrate, an organic light-emitting diode (OLED) layer, and a thin film encapsulation (TFE) layer which are stacked in sequence.

[0065] In another exemplary embodiment, the display panel includes a substrate, a thin film transistor (TFT) layer, an organic light-emitting diode (OLED) layer, a thin film encapsulation (TFE) layer, a touch layer and a polarizer which are stacked in sequence.

[0066] It should be noted that the layer structure of the display panel is not limited to the two structural forms listed above. Under the condition of meeting the requirements of folding display, the display panel can also adopt other layer structure forms.

[0067] Combination Figure 3 As shown, in some embodiments, the hinge device 10 includes two support members 101, which are respectively located at the edge of the hinge device 10 close to the middle frame structure 20, and the distance d2 between the edge of the support member 101 facing the middle frame structure 20 and the flexible screen 30 is greater than zero. Exemplarily, d2 is equal to d1.

[0068] The support member 101 in the hinge device 10 has a certain floating ability and can provide floating support for the flexible screen 30 according to the shape of the flexible screen 30 or the shape of the hinge device 10 .

[0069] Through the above arrangement, the support member 101 is arranged at the edge of the hinge device 10 close to the middle frame structure 20, and the distance between the edge of the support member 101 toward the middle frame structure 20 and the flexible plane is greater than zero, so that the edge of the support member 101 does not contact the flexible screen 30, and the edge of the support member 101 will not apply force to the flexible screen 30, thereby preventing excessive local stress on the flexible screen 30.

[0070] Exemplarily, the two middle frame structures 20 are respectively connected to the rotating shaft device 10 , and the two middle frame structures 20 can rotate within the range of 0-180 degrees by using the rotating shaft device 10 .

[0071] For example, when the two middle frame structures 20 are at 180 degrees, one of the middle frame structures 20, the hinge device 10 and the other middle frame structure 20 are connected in sequence to form a large plane, which can flatly support the flexible screen 30 and achieve a flat state of the foldable electronic device.

[0072] For example, when the two middle frame structures 20 are at 0 degrees, the two middle frame structures 20 are parallel, and one of the middle frame structures 20, the hinge device 10 and the other middle frame structure 20 are connected in sequence to form a U-shaped space, which can support the flexible screen 30 in a U-shape, a teardrop shape, to achieve a closed state of the foldable electronic device.

[0073] When the foldable electronic device is in a flattened state, one of the middle frame structures 20, one of the support members 101, the hinge device 10 and the other support member 101, and the other middle frame structure 20 are connected in sequence to form a large plane, which can support the flexible screen 30 flatly and realize the flattened state of the foldable electronic device.

[0074] When the electronic device is in a closed state, one of the middle frame structures 20, one of the support members 101, the hinge device 10 and the other support member 101, and the other middle frame structure 20 are connected in sequence to form a teardrop-shaped space. The two support members 101 are respectively located at the positions where the size of the teardrop shape begins to decrease. Through their own floating characteristics, they fit the contour of the teardrop shape and can support the flexible screen 30 in a teardrop shape, thereby realizing the closed state of the foldable electronic device.

[0075] Combination Figure 3As shown, in some embodiments, the distance d2 between the support member 101 and the flexible screen 30 increases in the direction close to the middle frame structure 20. Through the above arrangement, the closer to the middle frame structure 20, the larger the distance between the support member 101 and the flexible screen 30, which prevents the edge of the support member 101 from warping during the activity and causing stress to the flexible screen 30.

[0076] In some possible implementations, the distance between the middle of the support member 101 and the flexible screen 30 is equal to zero, that is, the middle of the support member 101 is in contact with the flexible screen 30, and the flexible screen 30 is supported by the larger plane in the middle of the support member 101, so that the supporting force is dispersed on a larger area of ​​the flexible plane, thereby preventing excessive local stress on the flexible screen 30.

[0077] In some possible implementations, the support member 101 is movably connected to the side of the hinge device 10 facing the flexible screen 30, and the non-display surface of the flexible screen 30 is supported on two middle frame structures 20, two support members 101 and the middle support assembly 102 respectively.

[0078] Combination Figure 1 , Figure 2 , Figure 3 As shown, in some embodiments, the foldable electronic device includes a closed state and a flattened state.

[0079] When the foldable electronic device is in a closed state, the distance between the edge of the support member 101 facing the middle frame structure 20 and the flexible screen 30 is greater than zero.

[0080] Through the above arrangement, the fitting area between the support member 101 and the flexible screen 30 is moved away from the middle frame structure 20, that is, close to one end of the hinge device 10, which is beneficial to increase the screen capacity space 1021 on one side of the hinge device 10, increase the local size of the flexible screen 30 close to the hinge device 10, and reduce the bending curvature of the flexible screen 30, which is beneficial to reduce the crease problem of the flexible screen 30.

[0081] When the foldable electronic device is in a flattened state, the minimum distance between the support member 101 and the flexible screen 30 is greater than or equal to the average distance between the middle frame structure 20 and the flexible screen 30 .

[0082] Through the above arrangement, in the flattened state, the minimum distance between the support member 101 and the flexible screen 30 is greater than or equal to the average distance between the middle frame structure 20 and the flexible screen 30, and the support height of the support member 101 can only be aligned with the support height of the middle frame structure 20. The support member 101 will not generate a supporting force on the flexible screen 30 that exceeds the middle frame structure 20. The support of the flexible screen 30 is mainly borne by the middle frame structure 20 with a larger area. The supporting force is dispersed over a larger screen area, which is beneficial to preventing the support member 101 from pressing against the flexible screen 30 to generate creases.

[0083] In addition, when in the flattened state, the support member 101 is slightly lower than the middle frame structure 20, and a gap is left between the support member 101 and the flexible screen 30. This can avoid the problem of the flexible screen 30 being subjected to upward force and arching due to the high degree of freedom of floating inspection and large activity space in the initial stage of the closing action of the folding electronic device.

[0084] Combination Figure 1 , Figure 2 , Figure 4 As shown, in some embodiments, the rotating shaft device 10 includes a middle supporting assembly 102 and at least two fixing members 103 , the fixing members 103 are rotatably connected to the middle supporting assembly 102 , and the middle frame structure 20 is connected to the fixing members 103 .

[0085] Through the above arrangement, in the foldable electronic device, one of the middle frame structures 20, one of the fixing parts 103, the middle support assembly 102, another fixing part 103 and another middle frame structure 20 are connected in sequence, and the adjacent middle frame structures 20 and fixing parts 103 are fixedly connected to form half of the body of the foldable electronic device. The fixing part 103 and the middle support assembly 102 are rotatably connected, thereby driving the middle frame structure 20 connected thereto to rotate around the middle support assembly 102, thereby realizing the switching of the closed state and the flattened state of the foldable electronic device.

[0086] In the closed state, at least two fixing members 103 and the middle support assembly 102 enclose a screen-containing space 1021 , and at least a portion of the flexible screen 30 is folded in the screen-containing space 1021 to form an inner bending portion 301 .

[0087] Exemplarily, the inner bending portion is in a teardrop shape.

[0088] A groove portion 1022 is provided on the surface of the middle support component 102 facing the screen space 1021 , and at least a portion of the inner bending portion 301 is located in the groove portion 1022 , and the curvature of the groove portion 1022 is smaller than the curvature of the inner bending portion 301 .

[0089] Among them, the surface of the middle support component 102 facing the screen space 1021, that is, the support surface of the middle support component 102, is used to directly contact the flexible screen 30 together with the middle frame structure 20 and the support member 101, and support the flexible screen 30 in the flattened state and the closed state.

[0090] The curvature of a curve is the rotation rate of the tangent direction angle to the arc length at a certain point on the curve, which can be used to indicate the degree to which the curve deviates from a straight line. In general, the greater the curvature, the greater the curvature of the curve.

[0091] By utilizing the groove portion 1022 having a curvature smaller than that of the inner bending portion, the curvature of the inner bending portion is greater than that of the groove portion 1022. When at least part of the inner bending portion is located in the groove portion 1022, that is, the contact area between the inner bending portion and the groove portion 1022 is limited. Due to the large curvature, the flexible screen 30 outside the contact portion extends with a large curvature, and thus cannot continue to contact the groove portion 1022, that is, part of the groove portion 1022 is retained. This part of the groove portion 1022 can serve as a gap for the divergent deformation of the flexible screen 30. These gaps can provide space for the flexible screen 30 to buffer deformation when the flexible screen 30 is subjected to stress, thereby reducing the stress condition of the flexible screen 30 and alleviating the crease problem of the flexible screen 30.

[0092] Combination Figure 1 , Figure 2 , Figure 4 As shown, in some embodiments, in the closed state, the inner bending portion 301 is symmetrical along the first plane 001 , and the intersection of the first plane 001 and the inner bending portion 301 forms a first fitting portion 3011 .

[0093] The groove portion 1022 is symmetrical along the second plane 002 , and the intersection of the second plane 002 and the groove portion 1022 forms a second fitting portion 10221 ; the first fitting portion 3011 contacts the second fitting portion 10221 , and the first plane 001 and the second plane 002 overlap.

[0094] Through the above arrangement, the center of the inner bending portion 301 of the flexible screen 30 can be in contact with the center position of the groove portion 1022, and the buffer gap reserved by the groove portion 1022 is also evenly distributed on both sides of the inner bending portion 301, thereby evenly absorbing the stress of the flexible screen 30 and reducing the stress of the flexible screen 30.

[0095] Combination Figure 2 , Figure 6 As shown, in some embodiments, the hinge device 10 also includes at least two track members 104, and the track member 104 is located between the middle support component 102 and the fixed component 103. The track member 104 is used to limit the movement of the fixed component 103 along the target track relative to the middle support component 102; in the closed state, the distance d3 between the track member 104 and the flexible screen 30 increases in the direction approaching the middle support component 102.

[0096] In this embodiment, one end of the track member 104 slides with the middle support assembly 102 through a slide rail and a slide groove structure, and the other end of the track member 104 rotates with the fixing member 103 through a hinge shaft. When the fixing member 103 and the middle frame structure 20 rotate relative to the middle support assembly 102, the track member 104 can ensure that the fixing member 103 and the middle frame structure 20 move along the target track, so that the fixing member 103 and the middle frame structure 20 can meet the expansion and contraction requirements of the flexible screen 30 and prevent the flexible screen 30 from being subjected to stress pulling or compression locking.

[0097] When the foldable electronic device is in the closed state, the distance between the track member 104 and the flexible screen 30 increases gradually in the direction approaching the middle support component 102. The track member 104 gradually increases the air avoidance space for the flexible screen 30, so that the screen space 1021 component close to the middle support component 102 gradually increases, and the inner bending portion 301 of the flexible screen 30 changes from a thin and tall shape to a thick and short shape, and the curvature of the inner bending portion 301 becomes smaller, thereby alleviating the force concentration at the lowest end of the inner bending portion 301 and alleviating the crease problem at the lowest end of the inner bending portion 301.

[0098] Combination Figure 2 , Figure 6 As shown, in some embodiments, the track member 104 includes a first contact surface 1041 facing the flexible screen 30, and the distance d31 between the end of the first contact surface 1041 away from the middle support component 102 and the flexible screen 30 is greater than or equal to zero, and the distance d32 between the end of the first contact surface 1041 close to the middle support component 102 and the flexible screen 30 is greater than zero.

[0099] Through the above arrangement, the track member 104 gradually increases the clearance space for the flexible screen 30 , so that the screen space 1021 component close to the middle support component 102 gradually increases, which is beneficial to alleviate the crease problem of the inner bending part 301 .

[0100] Combination Figure 2 , Figure 6 As shown, in some embodiments, the rotating shaft device 10 also includes at least two synchronizers 105, which are located between the middle support assembly 102 and the fixed member 103. The synchronizer 105 is used to drive the two fixed members 103 to move synchronously relative to the middle support assembly 102; in the closed state, the distance d4 between the synchronizer 105 and the flexible plane is greater than zero.

[0101] Through the above arrangement, the synchronizer 105 does not contact the flexible screen 30, which is beneficial to alleviate the stress on the flexible screen 30 and improves the crease effect.

[0102] In some possible implementations, the rotating shaft device 10 also includes a synchronous gear set, which is located in the middle support assembly 102. The end of the synchronous member 105 located on one side of the middle support assembly 102 is provided with an engaging portion to achieve a meshing connection between the synchronous member 105 and the synchronous gear set, so that the two synchronous members 105 can achieve synchronous movement relative to the middle support assembly 102.

[0103] In addition, the end of the synchronous member 105 located on one side of the fixed member 103 slides with the fixed member 103 through the slide rail and the slide groove structure. The synchronous member 105 can rotate around the central support assembly 102 with the fixed member 103 and can slide relative to the fixed member 103.

[0104] Combination Figure 2 , Figure 6 As shown, in some embodiments, in the closed state, the track member 104 includes a first contact surface 1041 facing the flexible screen 30, and the synchronization member 105 includes a second contact surface 1051 facing the flexible screen 30, and the first contact surface 1041 and the second contact surface 1051 are arranged in sequence in a direction away from the middle support assembly 102.

[0105] A first distance is set between the first contact surface 1041 and the flexible screen 30 , and a second distance is set between the second contact surface 1051 and the flexible screen 30 , wherein a difference between the first distance and the second distance is less than or equal to a target threshold.

[0106] Through the above arrangement, the height difference between the first contact surface 1041 of the track member 104 and the second contact surface 1051 of the synchronization member 105 relative to the flexible screen 30 is small. The flexible screen 30 will not be pushed against the higher side when passing between the first contact surface 1041 and the second contact surface 1051. The local stress of the flexible screen 30 is small, and local distortion of the flexible screen 30 can be avoided.

[0107] Combination Figure 6 As shown, in some embodiments, a third distance is set between the end of the first contact surface 1041 close to the middle support component 102 and the flexible screen 30, and a fourth distance is set between the end of the second contact surface 1051 away from the middle support component 102 and the flexible screen 30, wherein the third distance is equal to the fourth distance.

[0108] Through the above arrangement, the first contact surface 1041 of the track member 104 and the second contact surface 1051 of the synchronization member 105 can achieve zero-drop connection, and the flexible screen 30 is evenly supported on both sides when passing through. The local stress of the flexible screen 30 is small, and local distortion of the flexible screen 30 can be avoided.

[0109] In some possible implementations, the foldable electronic device may also include a radio frequency (RF) circuit, a memory including one or more computer-readable storage media, an input unit, a sensor, an audio circuit, a Wi-Fi module, a processor including one or more processing cores, and a power supply and other components.

[0110] It should be pointed out that in the description of this application, it should be explained that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0111] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0112] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0113] In the description of this specification, the reference terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application.

[0114] The above description is only an embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. A foldable electronic device, characterized in that: The foldable electronic device comprises: a hinge device (10), at least two middle frame structures (20) and a flexible screen (30); The adjacent middle frame structures (20) are respectively connected to the rotating shaft devices (10); The flexible screen (30) is covered on the at least two middle frame structures (20) and the rotating shaft device (10); The distance d1 between the edge of the rotating shaft device (10) facing the middle frame structure (20) and the flexible screen (30) is greater than zero.

2. The foldable electronic device according to claim 1, characterized in that: The hinge device (10) comprises a support member (101), wherein the support member (101) is respectively located at an edge of the hinge device (10) close to the middle frame structure (20), and a distance d2 between the edge of the support member (101) facing the middle frame structure (20) and the flexible screen (30) is greater than zero.

3. The foldable electronic device according to claim 2, characterized in that: The distance d2 between the support member (101) and the flexible screen (30) increases gradually in a direction approaching the middle frame structure (20).

4. The foldable electronic device according to claim 2, characterized in that: The foldable electronic device includes a closed state and a flattened state; In the closed state, the distance between the edge of the support member (101) facing the middle frame structure (20) and the flexible screen (30) is greater than zero; In the flattened state, the minimum distance between the support member (101) and the flexible screen (30) is greater than or equal to the average distance between the middle frame structure (20) and the flexible screen (30).

5. The foldable electronic device according to any one of claims 1 to 4, characterized in that: The rotating shaft device (10) comprises a middle supporting assembly (102) and a fixing member (103), wherein the fixing member (103) is rotatably connected to the middle supporting assembly (102), and the middle frame structure (20) is connected to the fixing member (103); In the closed state, the fixing member (103) and the middle support assembly (102) enclose a screen-containing space (1021), and at least a portion of the flexible screen (30) is folded in the screen-containing space (1021) to form an inner bending portion (301); A groove portion (1022) is provided on the surface of the middle support component (102) facing the screen space (1021), at least a portion of the inner bending portion (301) is located in the groove portion (1022), and the curvature of the groove portion (1022) is smaller than the curvature of the inner bending portion (301).

6. The foldable electronic device according to claim 5, characterized in that: In the closed state, the inner bending portion (301) is symmetrical along the first plane (001), and the intersection of the first plane (001) and the inner bending portion (301) forms a first fitting portion (3011); The groove portion (1022) is symmetrical along the second plane (002), and the intersection of the second plane (002) and the groove portion (1022) forms a second fitting portion (10221); The first bonding portion (3011) is in contact with the second bonding portion (10221), and the first plane (001) and the second plane (002) are overlapped.

7. The foldable electronic device according to claim 5, characterized in that: The rotating shaft device (10) further comprises a track member (104), wherein the track member (104) is located between the middle support assembly (102) and the fixing member (103), and the track member (104) is used to limit the movement of the fixing member (103) along a target track relative to the middle support assembly (102); In the closed state, the distance d3 between the track member (104) and the flexible screen (30) increases gradually in a direction approaching the middle support assembly (102).

8. The foldable electronic device according to claim 7, characterized in that: The track member (104) comprises a first contact surface (1041) facing the flexible screen (30), wherein a distance d31 between an end of the first contact surface (1041) away from the middle support assembly (102) and the flexible screen (30) is greater than or equal to zero, and a distance d32 between an end of the first contact surface (1041) close to the middle support assembly (102) and the flexible screen (30) is greater than zero.

9. The foldable electronic device according to claim 7, characterized in that: The rotating shaft device (10) further comprises a synchronous member (105), wherein the synchronous member (105) is located between the middle supporting assembly (102) and the fixing member (103), and the synchronous member (105) is used to drive the fixing member (103) to move synchronously with respect to the middle supporting assembly (102); In the closed state, a distance d4 between the synchronizer (105) and the flexible plane is greater than zero.

10. The foldable electronic device according to claim 9, characterized in that: In the closed state, the track member (104) includes a first contact surface (1041) facing the flexible screen (30), the synchronization member (105) includes a second contact surface (1051) facing the flexible screen (30), and the first contact surface (1041) and the second contact surface (1051) are arranged in sequence in a direction away from the middle support assembly (102); A first distance is provided between the first contact surface (1041) and the flexible screen (30), and a second distance is provided between the second contact surface (1051) and the flexible screen (30), wherein a difference between the first distance and the second distance is less than or equal to a target threshold.

11. The foldable electronic device according to claim 10, characterized in that: A third distance is provided between an end of the first contact surface (1041) close to the middle support assembly (102) and the flexible screen (30), and a fourth distance is provided between an end of the second contact surface (1051) away from the middle support assembly (102) and the flexible screen (30), wherein the third distance is equal to the fourth distance.

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