Electronic devices

Abstract

An embodiment of the present application provides an electronic device, the electronic device comprising a frame, a flexible screen and a support sheet, the frame being provided with a hinge assembly, the hinge assembly having a gap, the flexible screen having a folding area, and the folding area being opposite to the hinge assembly. The support sheet is provided between the hinge assembly and the folding area, and when the electronic device is in a folded state, the first serrated side and the second serrated side are away from each other, and at least part of the projection of the first serrated side on the hinge assembly covers the gap, and at least part of the projection of the second serrated side on the hinge assembly covers the gap. The first support sheet and the second support sheet will not get stuck in the gap in the hinge assembly, thereby avoiding the jamming of the hinge assembly during the folding and unfolding of the electronic device, and ensuring the effective folding and unfolding of the electronic device.

Description

Technical Field

[0001] The present application belongs to the technical field of foldable devices, and specifically relates to an electronic device. Background Art

[0002] In the related technology, with the continuous development of mobile electronic devices, foldable electronic devices have gradually come into the field of vision of users.

[0003] A foldable electronic device generally includes a middle frame provided with a hinge assembly and a foldable screen. The foldable screen is provided on the middle frame, and the hinge assembly can drive the folding area of ​​the foldable screen to fold. In order to support the folding area of ​​the foldable screen during the folding process of the foldable electronic device, a support assembly can be provided between the hinge assembly and the foldable screen.

[0004] However, during the folding process of the foldable electronic device, since the hinge assembly includes a floating middle plate and hinge arms arranged on both sides of the floating middle plate, there is a gap between the floating middle plate and the hinge arms. The support assembly is easily stuck in the gap of the hinge. On the one hand, it will cause the hinge to get stuck, affecting the effective folding and unfolding of the foldable electronic device; on the other hand, it will cause the support assembly to bend excessively and interfere with the folding screen, reducing the display effect of the folding screen. Summary of the invention

[0005] The present application aims to provide an electronic device that can solve the problem that foldable electronic devices are prone to jamming when folded.

[0006] In order to solve the above technical problems, this application is implemented as follows:

[0007] The present application provides an electronic device, including:

[0008] A frame body, wherein a hinge assembly is disposed in the frame body, and wherein a gap is provided in the hinge assembly;

[0009] A flexible screen, wherein the flexible screen has a folding area, the flexible screen is arranged on the frame, and the folding area is opposite to the hinge assembly;

[0010] A support sheet, the support sheet is arranged between the hinge assembly and the folding area, the support sheet comprises a first support sheet and a second support sheet arranged opposite to each other, the first support sheet has a first serrated side close to the second support sheet, and the second support sheet has a second serrated side close to the first support sheet;

[0011] The electronic device has an unfolded state and a folded state, and when the electronic device is in the unfolded state, the first sawtooth side and the second sawtooth side are staggered and opposite to each other;

[0012] When the electronic device is in a folded state, the first serrated side and the second serrated side are away from each other, and a projection of at least a portion of the first serrated side on the hinge assembly covers the gap, and a projection of at least a portion of the second serrated side on the hinge assembly covers the gap.

[0013] In the present application, an electronic device is provided, the electronic device comprising a frame, a flexible screen and a support sheet. When the electronic device is in a folded state, the first serrated side and the second serrated side are away from each other, and the projection of at least part of the first serrated side on the hinge assembly covers the gap, and the projection of at least part of the second serrated side on the hinge assembly covers the gap, so that the first support sheet and the second support sheet will not be stuck in the gap in the hinge assembly, thereby avoiding the jamming of the hinge assembly during the folding and unfolding of the electronic device, and ensuring the effective folding and unfolding of the electronic device.

[0014] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0016] Figure 1 is a schematic diagram of a support sheet of an electronic device according to an embodiment of the present application;

[0017] Figure 2 yes Figure 1 A partial enlarged view of the

[0018] Figure 3 is a schematic diagram of an electronic device according to an embodiment of the present application;

[0019] Figure 4 is a partial schematic diagram of an electronic device in an unfolded state according to an embodiment of the present application;

[0020] Figure 5 is a partial schematic diagram of an electronic device in a folding process according to an embodiment of the present application;

[0021] Figure 6 This is a partial schematic diagram of an electronic device in a folded state according to an embodiment of the present application.

[0022] Reference numerals:

[0023] 1. Frame; 11. Hinge assembly; 111. Gap; 112. Middle plate; 113. Swing arm; 2. Flexible screen; 21. Folding area; 3. Support sheet; 31. First support sheet; 311. First protrusion; 312. First recess; 32. Second support sheet; 321. Second protrusion; 322. Second recess. DETAILED DESCRIPTION

[0024] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0025] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0026] 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 orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0027] In the description of this application, it should be noted 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0028] Combine the following Figure 1 - Figure 6An electronic device according to an embodiment of the present application is described.

[0029] like Figures 1 to 3 As shown, according to some embodiments of the present application, an electronic device is provided, the electronic device comprising:

[0030] A frame 1, a flexible screen 2 and a support sheet 3, wherein the frame 1 is provided with a hinge assembly 11, and the hinge assembly 11 can facilitate the folding and unfolding of the folding area of ​​the flexible screen 2 and can protect the flexible screen 2. The hinge assembly 11 has a gap 111, for example, a gap 111 is formed between the connected movable parts in the hinge assembly 11.

[0031] See also Figure 3 and Figure 4 , the flexible screen 2 has a folding area 21, the flexible screen 2 is arranged on the frame 1, and the folding area 21 is opposite to the hinge assembly 11. That is, during the folding and unfolding of the folding area 21 of the flexible screen 2, the hinge assembly 11 can cooperate with the movement of the folding area 21.

[0032] See also Figure 4 The support sheet 3 is disposed between the hinge assembly 11 and the folding area 21. The support sheet 3 can support the folding area 21 during the folding and unfolding of the folding area 21 to ensure the integrity and reliability of the folding area 21. Figure 1 and Figure 2 The support sheet 3 includes a first support sheet 31 and a second support sheet 32 ​​which are arranged opposite to each other. The first support sheet 31 has a first serrated side close to the second support sheet 32 ​​, and the second support sheet 32 ​​has a second serrated side close to the first support sheet 31 .

[0033] See also Figures 4 to 5 , the electronic device has an unfolded state and a folded state, and when the electronic device is in the unfolded state, the first sawtooth side and the second sawtooth side are staggered and opposite to each other;

[0034] When the electronic device is in a folded state, the first serrated side and the second serrated side are away from each other, and the projection of at least part of the first serrated side on the hinge assembly 11 covers the gap 111, and the projection of at least part of the second serrated side on the hinge assembly 11 covers the gap 111. That is, during the folding and unfolding process of the electronic device, the first serrated side and the second serrated side can avoid the gap 111, so as to prevent the first serrated side and the second serrated side from being stuck in the gap 111.

[0035] Specifically, when the electronic device is in the unfolded state, the first serrated side and the second serrated side may be staggered relative to each other, with the protruding position of the first serrated side being opposite to the concave position of the second serrated side, and the concave position of the first serrated side being opposite to the convex position of the second serrated side, thereby improving the compactness of the cooperation between the first serrated side and the second serrated side.

[0036] Specifically, a side of the first support sheet 31 away from the second support sheet 32 ​​can be fixed to a first side of the folding area 21, and a side of the second support sheet 32 ​​away from the first support sheet 31 can be fixed to a second side of the folding area 21, and the second side and the first side are opposite folding edges on the folding area 21. When the electronic device switches between the unfolded state and the folded state, the flexible screen 2 drives the first support sheet 31 and the second support sheet 32 ​​to slide, so that the first serrated side and the second serrated side move away from and approach each other.

[0037] However, since the first sawtooth side and the second sawtooth side both extend in sawtooth shape, the convex position and the concave position of the first sawtooth side, as well as the convex position and the concave position of the second sawtooth side can avoid the gap 111 during the sliding process of the first support sheet 31 and the second support sheet 32, that is, the first sawtooth side and the second sawtooth side can be misaligned with the gap 111. This makes it possible for the first support sheet 31 and the second support sheet 32 ​​not to get stuck in the gap 111 in the hinge assembly 11, thereby avoiding the jamming of the hinge assembly 11 during the folding and unfolding of the electronic device, ensuring the effective folding and unfolding of the electronic device, and further improving the display effect of the flexible screen 2.

[0038] Optionally, when the electronic device is in the unfolded state, the first serrated side and the second serrated side engage with each other, and there is an assembly gap between the first serrated side and the second serrated side.

[0039] Specifically, when the first sawtooth side and the second sawtooth side are both extended in a sawtooth shape, the first sawtooth side can have a protruding position and a recessed position, and the second sawtooth side can have a protruding position and a recessed position. The first sawtooth side and the second sawtooth side can be engaged with each other in such a way that the protruding position of the first sawtooth side is embedded in the recessed position of the second sawtooth side, and the protruding position of the second sawtooth side is embedded in the recessed position of the first sawtooth side, so that the assembly gap between the first support sheet 31 and the second support sheet 32 ​​is smaller, for example, the assembly gap between the first support sheet 31 and the second support sheet 32 ​​can be controlled within the range of 0.2-0.6mm, so as to prevent the folding area 21 from being stuck in the assembly gap; and the assembly gap is extended asymmetrically, so that the first support sheet 31 and the second support sheet 32 ​​can provide a comprehensive protection for the entire folding area 21.

[0040] In a specific embodiment, see Figure 1 and Figure 2 The first serrated side includes a first protruding portion 311 and a first recessed portion 312, and the second serrated side includes a second protruding portion 321 and a second recessed portion 322. The first protruding portion 311 and the second recessed portion 322 are embedded and matched, and the first recessed portion 312 and the second protruding portion 321 are embedded and matched. On the basis of avoiding the first serrated side and the second serrated side from being stuck in the gap 111, the assembly gap between the first support sheet 31 and the second support sheet 32 ​​is reduced, thereby ensuring that the first support sheet 31 and the second support sheet 32 ​​effectively support the folding area 21.

[0041] Alternatively, see Figure 1 , the first serrated side includes a plurality of first protrusions 311 and a plurality of first recessed portions 312, and the plurality of first protrusions 311 and the plurality of first recessed portions 312 are arranged at intervals; specifically, the interval arrangement of the plurality of first protrusions 311 and the plurality of first recessed portions 312 can be that each first protrusion 311 is located between two adjacent first recessed portions 312 (except the first protrusion 311 at the end of the first serrated side), and each first recessed portion 312 is located between two adjacent first protrusions 311 (except the first recessed portion 312 at the end of the first serrated side).

[0042] The second serrated side includes a plurality of second protrusions 321 and a plurality of second recesses 322, and the plurality of second protrusions 321 and the plurality of second recesses 322 are arranged at intervals; specifically, the interval arrangement of the plurality of second protrusions 321 and the plurality of second recesses 322 can be that each second protrusion 321 is located between two adjacent second recesses 322 (except the second protrusion 321 at the end of the second serrated side), and each second recess 322 is located between two adjacent second protrusions 321 (except the second recess 322 at the end of the second serrated side), so as to ensure the bite between the first support sheet 31 and the second support sheet 32, and enhance the supporting effect of the first support sheet 31 and the second support sheet 32 ​​on the entire folding area 21.

[0043] In addition, the protruding distances of the multiple first protrusions 311 on the first serrated side can be the same, that is, the tops of the multiple first protrusions 311 are on the same horizontal line, and the recessed distances of the multiple first recessed portions 312 can also be the same, that is, the bottoms of the multiple first recessed portions 312 are on the same horizontal line.

[0044] The protruding distances of the multiple second protrusions 321 on the second serrated side can be the same, that is, the tops of the multiple second protrusions 321 are on the same horizontal line, and the recessed distances of the multiple second recessed portions 322 can also be the same, that is, the bottoms of the multiple second recessed portions 322 are on the same horizontal line.

[0045] Alternatively, see Figures 4 to 6 The gap 111 includes a first gap and a second gap. The hinge assembly 11 includes a middle plate 112 and swing arms 113 arranged on both sides of the middle plate 112. The first gap and the second gap are respectively formed between the middle plate 112 and the swing arms 113 on both sides. The first support sheet 31 is close to the first gap, and the second support sheet 32 ​​is close to the second gap.

[0046] Specifically, the hinge assembly 11 may include a hinged body, two swing arms 113 are connected to both sides of the hinge assembly 11, and the middle plate 112 is located on a side of the hinged body close to the flexible screen 2, so that the middle plate 112 and the two swing arms 113 are close to the first support sheet 31 and the second support sheet 32. Figure 2 The hinge assembly 11 may have a symmetry axis X, and the first gap and the second gap are symmetrically arranged on both sides of the symmetry axis X. The arrangement of the first serrated side can prevent the first supporting sheet 31 from being stuck in the first gap, and the second serrated side can prevent the second supporting sheet 32 ​​from being stuck in the second gap, thereby ensuring effective folding and unfolding of the electronic device.

[0047] Alternatively, see Figure 1 and Figure 2, when the electronic device is in the unfolded state, the distance that the first protrusion 311 protrudes from the first gap is a first protrusion distance S0, and the first concave portion 312 and the first protrusion 311 are located on both sides of the first gap;

[0048] When the electronic device switches from the unfolded state to the folded state, the first supporting piece 31 forms a first sliding distance S1 , and the first protruding distance is greater than the first sliding distance.

[0049] Specifically, when the first protrusion 311 protrudes from the first gap, the first protrusion 311 is located between the first gap and the second gap. When the electronic device switches from the unfolded state to the folded state, the first support sheet 31 will slide under the drive of the folding area 21, so that the first protrusion 311 will move away from the second gap and approach the first gap. However, since the first sliding distance S1 of the first support sheet 31 is smaller than the first protrusion distance S0 of the first protrusion 311, even when the electronic device is in a fully folded state, the first protrusion 311 is still between the first gap and the second gap, so that the first protrusion 311 does not slide into the first gap.

[0050] During the process of switching the electronic device from the unfolded state to the folded state, although the first recessed portion 312 is close to the first gap, since the position of the first recessed portion 312 does not exceed the first gap, the first protruding portion 311 is always far away from the first gap during the folding process of the electronic device. Therefore, during the entire folding process of the electronic device, the first protruding portion 311 will not be stuck in the first gap, thereby ensuring the effective folding and unfolding of the electronic device.

[0051] Alternatively, see Figure 4 , when the electronic device is in the unfolded state, the distance that the second protruding portion 321 protrudes from the second gap is a second protruding distance, and the second recessed portion 322 and the second protruding portion 321 are located on both sides of the second gap;

[0052] See also Figures 4 to 6 When the electronic device switches from the unfolded state to the folded state, the second supporting piece 32 forms a second sliding distance, and the second protruding distance is greater than the second sliding distance.

[0053] Specifically, when the second protrusion 321 protrudes from the second gap, the second protrusion 321 is located between the first gap and the second gap. When the electronic device switches from the unfolded state to the folded state, the second support sheet 32 ​​will slide under the drive of the folding area 21, so that the second protrusion 321 will move away from the first gap and approach the second gap. However, since the second sliding distance S1 of the second support sheet 32 ​​is less than the second protrusion distance S0 of the second protrusion 321, even when the electronic device is in a fully folded state, the second protrusion 321 is still between the first gap and the second gap, so that the second protrusion 321 does not slide into the second gap.

[0054] During the process of switching the electronic device from the unfolded state to the folded state, although the second recessed portion 322 is close to the second gap, since the position of the second recessed portion 322 does not exceed the second gap, the second protruding portion 321 is always far away from the second gap during the folding process of the electronic device. Therefore, the second protruding portion 321 will not be stuck in the second gap during the entire folding process of the electronic device, thereby ensuring the effective folding and unfolding of the electronic device.

[0055] Alternatively, see Figure 2 , the distance between the first gap and the second gap is the gap distance S2, and the first protrusion distance is smaller than the gap distance.

[0056] Specifically, when the first protrusion distance S0 is smaller than the distance S2 between the first gap and the second gap, the first protrusion 311 can be made not to exceed the second gap, thereby ensuring that during the unfolding and folding process of the electronic device, even if the first supporting sheet 31 slips, the first protrusion 311 can still be ensured to be between the first gap and the second gap, thereby preventing the first protrusion 311 from slipping into the first gap and the second gap.

[0057] Similarly, the second protrusion distance S0 may also be smaller than the distance S2 between the first gap and the second gap, so that the second protrusion 321 does not exceed the first gap, thereby ensuring that during the unfolding and folding process of the electronic device, even if the second supporting sheet 32 ​​slips, the second protrusion 321 can still be between the first gap and the second gap, thereby preventing the second protrusion 321 from sliding into the first gap and the second gap.

[0058] During the process of switching the electronic device from the folded state to the unfolded state, since the first protruding distance is greater than the first sliding distance, the position of the first recessed portion 312 when the electronic device is unfolded does not exceed the first gap, and it can still be ensured that the first protruding portion 311 is between the first gap and the second gap, and the first recessed portion 312 does not reach the first gap.

[0059] Similarly, since the second protrusion distance is greater than the second sliding distance, the position of the second recessed portion 322 does not exceed the second gap when the electronic device is unfolded, and it can still be ensured that the second protrusion 321 is between the first gap and the second gap, and the second recessed portion 322 does not reach the second gap.

[0060] Optionally, the first sawtooth side is in the form of trapezoidal sawtooth, square sawtooth, triangular sawtooth or arc-shaped sawtooth, and the second sawtooth side is in the form of trapezoidal sawtooth, square sawtooth, triangular sawtooth or arc-shaped sawtooth.

[0061] Specifically, when the first sawtooth side is a trapezoidal sawtooth, the trapezoidal sawtooth may include a trapezoidal protrusion and an inverted trapezoidal recess, or a combination of a trapezoidal protrusion and a square recess, or a combination of a part of the protrusions being a trapezoidal protrusion, a part of the protrusions being a square protrusion, and a matching inverted trapezoidal recess. Similarly, the second sawtooth side may also be a combination of the same type of protrusions and recesses, or a combination of different types of protrusions and / or different types of recesses, so that the first support sheet 31 and the second support sheet 32 ​​match.

[0062] In addition, the arc-shaped sawtooth may be a curved sawtooth such as a sinusoidal sawtooth or a wavy sawtooth, which can avoid forming sharp corners on the first sawtooth side and the second sawtooth side, thereby preventing the first supporting sheet 31 and the second supporting sheet 32 ​​from scratching the flexible screen 2 .

[0063] Optionally, the support sheet 3 is a steel sheet.

[0064] Specifically, the support sheet 3 can be an ultra-thin steel sheet to avoid the support sheet from occupying too much space inside the electronic device. The first serrated side and the second serrated side engage with each other, so that the gap between the first support sheet 31 and the second support sheet 32 ​​is smaller, and the folding area 21 is prevented from being stuck in the gap; and the gap is asymmetrically extended, so that the first support sheet 31 and the second support sheet 32 ​​can fully protect the entire folding area 21.

[0065] In addition, the electronic device may be one of a foldable screen mobile phone, a foldable screen tablet computer, a foldable screen e-book reader, a foldable screen computer, a foldable screen set-top box, a foldable screen smart TV and a foldable screen wearable device.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0067] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An electronic device, characterized in that: include: A frame (1), wherein a hinge assembly (11) is arranged in the frame (1), and a gap (111) is provided in the hinge assembly (11); A flexible screen (2), the flexible screen (2) having a folding area (21), the flexible screen (2) being arranged on the frame (1), and the folding area (21) being opposite to the hinge assembly (11); a support sheet (3), the support sheet (3) being arranged between the hinge assembly (11) and the folding area (21), the support sheet (3) comprising a first support sheet (31) and a second support sheet (32) arranged opposite to each other, the first support sheet (31) having a first serrated side close to the second support sheet (32), and the second support sheet (32) having a second serrated side close to the first support sheet (31); The electronic device has an unfolded state and a folded state, and when the electronic device is in the unfolded state, the first sawtooth side and the second sawtooth side are staggered and opposite to each other; When the electronic device is in a folded state, the first serrated side and the second serrated side are away from each other, and a projection of at least a portion of the first serrated side on the hinge assembly (11) covers the gap (111), and a projection of at least a portion of the second serrated side on the hinge assembly (11) covers the gap (111).

2. The electronic device according to claim 1, characterized in that: When the electronic device is in an unfolded state, the first serrated side and the second serrated side are engaged with each other, and there is an assembly gap between the first serrated side and the second serrated side.

3. The electronic device according to claim 1 or 2, characterized in that: The first sawtooth side includes a first protruding portion (311) and a first recessed portion (312), and the second sawtooth side includes a second protruding portion (321) and a second recessed portion (322), the first protruding portion (311) and the second recessed portion (322) are embedded and matched, and the first recessed portion (312) and the second protruding portion (321) are embedded and matched.

4. The electronic device according to claim 3, characterized in that: The first sawtooth side comprises a plurality of first protruding portions (311) and a plurality of first concave portions (312), and the plurality of first protruding portions (311) and the plurality of first concave portions (312) are arranged at intervals; The second sawtooth side comprises a plurality of second protruding portions (321) and a plurality of second recessed portions (322), and the plurality of second protruding portions (321) and the plurality of second recessed portions (322) are arranged at intervals.

5. The electronic device according to claim 3, characterized in that: The gap (111) includes a first gap and a second gap, the hinge assembly (11) includes a middle plate (112) and swing arms (113) arranged on both sides of the middle plate (112), the first gap and the second gap are respectively formed between the middle plate (112) and the swing arms (113) on both sides, the first support sheet (31) is close to the first gap, and the second support sheet (32) is close to the second gap.

6. The electronic device according to claim 5, characterized in that: When the electronic device is in an unfolded state, the distance that the first protruding portion (311) protrudes from the first gap is a first protruding distance, and the first concave portion (312) and the first protruding portion (311) are located on both sides of the first gap; During the process of the electronic device switching from the unfolded state to the folded state, the first supporting sheet (31) forms a first sliding distance, and the first protruding distance is greater than the first sliding distance.

7. The electronic device according to claim 5, characterized in that: When the electronic device is in an unfolded state, the distance that the second protruding portion (321) protrudes from the second gap is a second protruding distance, and the second recessed portion (322) and the second protruding portion (321) are located on both sides of the second gap; During the process of the electronic device switching from the unfolded state to the folded state, the second supporting sheet (32) forms a second sliding distance, and the second protruding distance is greater than the second sliding distance.

8. The electronic device according to claim 6, characterized in that: The distance between the first gap and the second gap is a gap distance, and the first protrusion distance is smaller than the gap distance.

9. The electronic device according to claim 2, characterized in that: The first sawtooth side is in the form of trapezoidal sawtooth, square sawtooth, triangular sawtooth or arc-shaped sawtooth, and the second sawtooth side is in the form of trapezoidal sawtooth, square sawtooth, triangular sawtooth or arc-shaped sawtooth.

10. The electronic device according to claim 1, characterized in that: The supporting sheet (3) is a steel sheet.

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