Electronic device

Abstract

The electronic device provided by the embodiments of the present application can be a mobile phone, a wearable device, a vehicle-mounted device, or the like. The electronic device of the present application adopts a design in which the base protrudes along the Y direction or is flush with the shaft cover, thereby improving the structural rigidity, the base can effectively bear all or part of the impact force, effectively improving the deformation of the shaft cover and the problem of the flexible screen being impacted caused thereby, and thus improving the anti-falling performance of the whole machine.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic equipment, in particular to an electronic equipment. BACKGROUND

[0002] With the gradual development of flexible screen technology, foldable electronic equipment emerges as the times require and is increasingly widely applied in people's life field. The current foldable electronic equipment often cannot be normally folded and unfolded after falling. Therefore, how to reduce the impact of falling on the normal work of the foldable electronic equipment is one of the technical problems that the technical personnel in the field are concerned about. SUMMARY

[0003] The electronic equipment provided by the embodiments of the present application has a relatively low probability of the phenomenon of the shaft cover being deformed due to falling.

[0004] In one aspect, the embodiments of the present application provide an electronic equipment, which comprises a rotating shaft mechanism, two main body parts and a flexible screen. The rotating shaft mechanism comprises a base and a shaft cover. The two main body parts are rotationally connected to the base so as to be folded or unfolded relative to each other. In the direction parallel to the rotating shaft, the distance between the base and the main body part is not greater than the distance between the shaft cover and the main body part. The entire end part of the base can pass through the shaft cover or pass through the upper end of the shaft cover, so that the outer end part of the base is exposed outside the shaft cover or flush with the outer wall of the shaft cover. Of course, part of the end part of the base can also pass through the shaft cover or pass through the upper end of the shaft cover. The foldable electronic equipment of the present application adopts the design that the base protrudes in the Y direction or is flush with the shaft cover, which improves the structural rigidity. The base can effectively bear all or part of the impact force, effectively improves the problem of the shaft cover being deformed and the flexible screen being impacted, and thus improves the anti-falling performance of the whole machine.

[0005] Based on one aspect, the embodiments of the present application further provide a first implementation manner of the one aspect:

[0006] The base comprises a body and a protruding part extending outward from part of the end part of the body. The protruding part at least partially extends between the shaft cover and the main body part, or the outer end of the protruding part is flush with the outer wall of the shaft cover. In this embodiment, only part of the end part of the base extends outside the shaft cover.

[0007] Based on the first implementation manner of the one aspect, the embodiments of the present application further provide a second implementation manner of the one aspect:

[0008] The protruding part extends through the shaft cover to between the shaft cover and the main body part. In this implementation, the shaft cover has a corresponding avoiding space so as to pass through the protruding part. This installation manner is relatively flexible, and the base and the shaft cover can be as close as possible, so that the height of the rotating shaft mechanism in the Z direction can be reduced.

[0009] Based on the first implementation of the first aspect, the embodiments of the present application further provide a third implementation of the first aspect:

[0010] The protruding amount of the protruding portion protruding out of the wall of the shaft cover is in the range of 0-0.5mm, which can meet the requirements of most folding electronic devices.

[0011] Based on the first to third implementations of the first aspect, the embodiments of the present application further provide a fourth implementation of the first aspect:

[0012] The number of the protruding portion is one or more, which can greatly improve the design flexibility.

[0013] Based on the first to fourth implementations of the first aspect, the embodiments of the present application further provide a fifth implementation of the first aspect:

[0014] The distance between the base and the main body portion is in the range of 0.01-0.5mm.

[0015] Based on the first to fifth implementations of the first aspect, the embodiments of the present application further provide a sixth implementation of the first aspect:

[0016] The distance between the shaft cover and the main body portion is in the range of 0.01-0.8mm.

[0017] Based on the first to sixth implementations of the first aspect, the embodiments of the present application further provide a seventh implementation of the first aspect:

[0018] The pivot mechanism further includes a guide component mounted on the shaft cover, for guiding the folding deformation of the bending portion of the flexible screen, and the gap between the base and the guide component in the direction of the pivot is in the range of 0-0.2mm.

[0019] Based on the first to seventh implementations of the first aspect, the embodiments of the present application further provide an eighth implementation of the first aspect:

[0020] The base further has a retaining wall structure for limiting the movement displacement of the shaft cover towards the side of the flexible screen, and the gap between the retaining wall structure and the shaft cover in the direction parallel to the pivot in the folded state is in the range of 0-0.3mm.

[0021] Based on the eighth implementation of the first aspect, the embodiments of the present application further provide a ninth implementation of the first aspect:

[0022] The gap between the protruding portion and the shaft cover in the first direction is in the range of 0-0.4mm, wherein the first direction is perpendicular to the pivot and points to the flexible screen;

[0023] Or / and, in the folded state, the gap between the retaining wall structure and the shaft cover in the first direction is 0-0.4mm, wherein the first direction is perpendicular to the rotating shaft and points to the flexible screen. This facilitates the installation of the base, avoids interference between the base and the shaft cover, and additionally, when the shaft cover has a tendency to deform due to falling, the base can also inhibit the deformation of the shaft cover in the first direction.

[0024] Based on the first to eighth embodiments of the first aspect, the present application further provides a tenth embodiment of the first aspect:

[0025] The main body portion includes a middle frame, and the distance between the base and the middle frame is not greater than the distance between the shaft cover and the middle frame in the direction parallel to the rotating shaft.

[0026] Based on the tenth embodiment, the present application further provides an eleventh embodiment of the first aspect:

[0027] The edge of the main body portion near the base end portion has a standing wall, and the base and the shaft cover are both located inside the standing wall, and the distance between the base and the standing wall is not greater than the distance between the shaft cover and the standing wall. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 A schematic diagram of the overall structure of a folding electronic device in an unfolded state is provided for the embodiments of the present application.

[0029] Figure 2 A schematic diagram of the overall structure of a folding electronic device in an unfolded state is provided for the embodiments of the present application. Figure 1 A schematic diagram of the overall structure of a folding electronic device in an unfolded state is provided for the embodiments of the present application.

[0030] Figure 3 A schematic diagram of the overall structure of a folding electronic device in an unfolded state is provided for the embodiments of the present application.

[0031] Figure 4-1 A schematic diagram of the overall structure of a folding electronic device in an unfolded state is provided for the embodiments of the present application. Figure 2 A schematic diagram of the overall structure of a folding electronic device in an unfolded state is provided for the embodiments of the present application.

[0032] Figure 4-2 A schematic diagram of the overall structure of a folding electronic device in an unfolded state is provided for the embodiments of the present application. Figure 4-1 A front view of the folding electronic device is shown.

[0033] Figure 5 A front view of the folding electronic device is shown. Figure 2 A-A cross-sectional view of the folding electronic device is shown.

[0034] Figure 6 A cross-sectional view of the position relationship between the shaft cover, the main body portion, and the base in the second embodiment of the present application is shown.

[0035] Figure 7 A cross-sectional view of the position relationship between the shaft cover, the main body portion, and the base in the third embodiment of the present application is shown.

[0036] Figure 8 A schematic diagram of the relative positions of the main components of a folding electronic device and the ground when the folding electronic device falls;

[0037] Figure 9 A schematic diagram of the falling state of a folding electronic device;

[0038] Figure 10 A Figure 2 A schematic diagram of the assembly of the main body and the hinge mechanism;

[0039] Figure 11 A Figure 10 An enlarged schematic diagram of P1. DETAILED DESCRIPTION

[0040] In view of the damage to the shaft cover mentioned in the background art, the present application has carried out a large number of experimental studies, and the research has found that: please refer to Figure 9 Most folding electronic devices usually fall on the ground in Figure 9 position. When the folding electronic device falls, the middle frame of the two main body parts is deformed too much to recover, which compresses the gap between the middle frame and the shaft cover, resulting in failure to open and close or increasing the resistance to opening and closing. Moreover, the middle frame will squeeze the shaft cover, causing the shaft cover to deform in the direction of the folding shaft. When the deformation is too large, the shaft cover material will yield and cause irreversible damage, thus posing a risk to the reliability of the shaft cover and the structure connected to the shaft cover.

[0041] On the basis of the above research findings, the present application further explores and proposes a technical solution that can effectively solve the above technical problems.

[0042] It should be noted that the present application takes a folding electronic device as an example to introduce the technical solution and technical effect. Those skilled in the art should understand that the improvement of the shaft cover and the base structure in the present application is not limited to folding electronic devices, but can also be applied to other electronic devices.

[0043] It should be noted that the side of the shaft cover 301 facing the flexible screen is defined as the inside, and correspondingly, the other side facing the main body part is defined as the outside.

[0044] The folding electronic device provided in the embodiments of the present application can be a mobile terminal such as a mobile phone, a wearable device, a vehicle-mounted device, an augmented reality (AR) / virtual reality (VR) device, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (PDA), or the like, or can be a professional shooting device such as a digital camera, a single-lens reflex camera / micro-single camera, a sports video camera, a gimbal camera, or a drone. The specific type of the folding electronic device is not limited in the embodiments of the present application. For the convenience of understanding, the folding electronic device is taken as a mobile phone in the following description.

[0045] Please refer to Figures 1 to 3 , Figure 10 , Figure 11 , Figure 1 FIG. 1 is a schematic diagram of an overall structure of a folding electronic device in an unfolded state according to an embodiment of the present application; Figure 2 FIG. 2 is a schematic diagram of partial components of the folding electronic device shown in FIG. 1 in an exploded state; Figure 1 FIG. 3 is a schematic diagram of an exploded view of a hinge mechanism and a main body according to an embodiment of the present application; Figure 3 FIG. 4 is a schematic diagram of an assembly of the main body and the hinge mechanism in FIG. 3; Figure 10 FIG. 5 is a schematic diagram of an enlarged view of P1 in FIG. 4. Figure 2 Figure 11 Figure 10

[0046] In this embodiment, the folding electronic device includes a hinge mechanism 300, two main bodies 200, and a flexible screen 100. The two main bodies 200 of the folding electronic device are connected by the hinge mechanism 300, and the hinge mechanism 300 is used to rotate the two main bodies 200 relative to each other, thereby achieving folding and unfolding of the folding electronic device. The structures of the two main bodies 200 can be the same or not completely the same, and the specific structures of the two main bodies 200 can be determined according to specific products, which are not limited herein. The main body 200 mainly provides a mounting basis and protection for the hinge mechanism 300 and the flexible screen 100.

[0047] ​​​The flexible screen 100 comprises a display module and a transparent cover plate. The display module can display images, videos and the like. The display module can comprise a touch screen, a light-emitting layer, a back plate layer, a substrate layer and the like. The specific structure of the display module can be selected according to different products. The display module can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light emitting diode (AMOLED), a flexible light-emitting diode (FLED), a Miniled, a MicroLed, a Micro-oLed, a quantum dot light emitting diode (QLED) and the like. The transparent cover plate covers the outside of the display module and protects the display module. The transparent cover plate can be a glass cover plate, and can also be a transparent material capable of providing protection.

[0048] Please refer to Figure 3 In the present application, the rotating shaft mechanism comprises a shaft cover 301, a base 302 (also referred to as a rotating shaft base), a first swing arm 303, a second swing arm 304 and a connecting block 305. One end of the first swing arm 303 and the second swing arm 304 is rotatably connected to the base 302 or the shaft cover 301, and the other end is connected to the connecting block 305. The specific embodiment in which the first swing arm 303 and the second swing arm 304 are rotatably connected to the base 302 is given herein. The main body part 200 is connected to the connecting block 305. In this way, when the first swing arm 303 and the second swing arm 304 rotate relative to the base, they can drive the main body part 200 connected to the connecting block 305 to rotate, thereby realizing the folding and unfolding of the two main body parts 200.

[0049] The rotating center position of the rotating shaft base and one of the various swing arms is kept unchanged, which is used to provide a position reference datum. The rotating shaft base can be directly provided with a rotation constraint with the various swing arms, or can be provided with a rotation constraint with the various swing arms through other intermediate components. The shaft cover 301 is an appearance part (i.e. an externally visible part) covering the rotating shaft movement mechanism in the folded state. The shaft cover 301 can also cover the rotating shaft movement mechanism together with the middle frame.

[0050] The shaft cover 301 is generally located outside the base 302, and one of the functions of the shaft cover 301 is to cover the appearance part (i.e., the part visible externally) of the rotation shaft mechanism in the folded state of the electronic device; the shaft cover 301 can also cover the rotation shaft movement mechanism together with the middle frame. For example, the shaft cover 301 can cover the base 302 and other components mounted on the base, thereby improving the appearance of the folding electronic device. The shaft cover 301 and the base 302 can be allowed to slide in the Z direction, or the shaft cover 301 and the base 302 can be rigidly connected by means of locking screws, welding, etc. It should be noted that the direction along the rotation shaft is defined as the Y direction, the direction perpendicular to the Y axis and pointing to the flexible screen 100 is defined as the Z direction, and the direction perpendicular to the Y direction and the Z direction is defined as the X direction. For details, please refer to Figure 3 understanding.

[0051] The present application provides a new shaft cover and base cooperation design, please further refer to Figure 4-1 、 Figure 4-2 and Figure 5 In the folding electronic device of the present application, the base 302 protrudes or is flush with the shaft cover 301, that is, in the Y direction, the gap A between the base 302 and the middle frame 201 is not greater than the gap B between the shaft cover 301 and the middle frame 201. That is, the distance A between the base 302 and the main body 200 in the present application is not greater than the distance B between the shaft cover 301 and the main body 200, that is, the distance A is less than or equal to the distance B, and the present application shows a specific embodiment in which the distance A is less than the distance B. Figures 4-1 to 7

[0052] The folding electronic device of the present application adopts the design of the base 302 protruding or being flush with the shaft cover 301 in the Y direction, which improves the structural rigidity, and the base 302 can effectively bear all or part of the impact force, effectively improving the deformation of the shaft cover 301 and the problem of the flexible screen 100 being impacted, thereby improving the overall drop resistance.

[0053] In one example, the distance A is approximately 0.01-0.5mm, the distance B is approximately 0.01-0.8mm, and the protrusion C of the base 302 protruding the outer wall of the shaft cover is approximately 0-0.5mm.

[0054] As shown in Figures 4-1 to 7 , when the base 302 protrudes from the shaft cover 301 (i.e., C>0), please refer to Figure 8 ​It is understood that after the folding electronic device falls in the folded state, the middle frame 201 of the main body 200 will first be squeezed to the base 302 after being impacted, and the shaft cover 301 will not be squeezed or will be squeezed with reduced force. That is, the base 302, which first contacts the middle frame 201, will completely consume the falling impact force or consume most of the falling impact force, so that the shaft cover 301 can also be completely free of contact with the middle frame 201 to avoid the falling impact force or even if the shaft cover 301 contacts the middle frame 201, the impact force will be relatively small, thus effectively improving the deformation of the shaft cover 301 and the impact problem of the flexible screen 100 caused thereby. In addition, it is worth mentioning that after the middle frame 201 is impacted in the Y direction, the base 302 is subjected to a positive pressure, and the material has a stronger compression resistance than bending resistance, and is capable of bearing all or part of the impact force, thereby reducing the deformation amount.

[0055] When the base 302 is flush with the shaft cover 301 (i.e., C = 0), that is, the end of the base 302 is flush with the outer wall of the shaft cover 301, after the folding electronic device falls in the folded state, the middle frame 201 will be squeezed to the base 302 and the shaft cover 301 after being impacted, that is, the falling impact force is currently borne by the base 302 and the shaft cover 301, and the base 302 can effectively share part of the impact force. Compared with the prior art in which the shaft cover 301 alone bears the falling impact force, in this example of the present application, the shaft cover 301 only bears part of the impact force, which can also effectively improve the deformation of the shaft cover 301 and the impact problem of the flexible screen caused thereby.

[0056] Please refer to Figures 3 to 5 It is understood that in a specific example, the middle frame 201 of the main body 200 has a standing wall near the edges of the two ends of the base 302, and the base 302 and the shaft cover 301 are located inside the standing wall, and the distance between the base 302 and the standing wall is not greater than the distance between the shaft cover 301 and the standing wall. As shown in Figure 3 Each of the two middle frames 201 has a standing wall on three sides other than the side adjacent to the other middle frame 201 and parallel to the axis direction: a first standing wall 2012 extending parallel to the axis direction, and two second standing walls 2011 located at the two ends of the first standing wall 2012 and extending perpendicular to the axis direction, Figure 3 only one second standing wall 2011 is shown, and in combination with Figure 2 and Figure 10 It is not difficult for those skilled in the art to understand that the other side of the first standing wall 2012 of the middle frame 201 also has a second standing wall 2011. The space surrounded by all the first standing walls 2012 and all the second standing walls 2011 of the two middle frames 201 can be used to install other components of the electronic device, and each standing wall can also protect each component.

[0057] In the above example, the second standing wall 2011 is closer to the end of the base 302 on that side than to the shaft cover 301 or is equal in distance to the base 302 and the shaft cover 301.

[0058] In a specific example, the middle frame 201 can include a frame portion close to the screen, and the frame portion can be located outside the end of the shaft cover 301. The distance between the base 302 and the middle frame 201 is the distance between the base 302 and the frame portion, and the distance between the shaft cover 301 and the frame portion is the distance between the shaft cover 301 and the middle frame 201. That is, the frame portion forms the second vertical wall 2011.

[0059] Of course, the middle frame 201 can also be a frameless structure.

[0060] In order to further improve the deformation of the shaft cover 301, the application also proposes a structure design scheme as shown in Figure 5 and Figure 6 , that is, the base 302 is provided with a retaining wall structure 3021, which can be a slope, as shown in Figure 5 . Of course, the retaining wall structure 3021 can also be a vertical surface, supporting the shaft cover 301 in the Y direction. Correspondingly, the shaft cover 301 can be provided with an abutting surface 3013 cooperating with the retaining wall structure, which can be a slope or a vertical surface. That is, the meaning of "cooperating" described here is that the abutting surface 3013 and the retaining wall structure 3021 have substantially the same shape, that is, when the retaining wall structure is a vertical surface, the abutting surface 3013 of the shaft cover is also a vertical surface, and the two vertical surfaces are oppositely arranged. When the retaining wall structure 3021 is a slope having an angle with the Y direction, the abutting surface 3013 is also a slope, and the retaining wall structure 3021 and the abutting surface 3013 are substantially parallel, so that they have a predetermined gap in the Y direction and the Z direction. It should be noted that the vertical surface here is a plane parallel to the Z direction, which can be referred to Figure 6 . In this way, even if the shaft cover 301 is subjected to partial impact force, the deformation amount will be reduced due to the support of the retaining wall structure of the base 302. The retaining wall structure 3021 includes but is not limited to the vertical retaining wall or the slope retaining wall as shown in Figure 5 and Figure 6 , and any structure that can provide support in the Y direction is within the protection scope of the application. The gap E between the retaining wall structure of the shaft cover 301 and the base 302 in the Y direction in the folded state is 0-0.3mm. In addition, in the folded state, the retaining wall structure and the shaft cover 301 can also have a gap in the Z direction, and the gap range is 0-0.4mm.

[0061] Furthermore, the protruding portion of the base 302 and the shaft cover 301 can also have a gap in the Z direction, and the gap range is substantially 0-0.4mm.

[0062] In a specific example, the shaft cover 301 of the shaft mechanism is also provided with a guide component 306 for guiding the folding deformation of the bending portion of the flexible screen 100. The guide component can be a T-shaped block, and of course can also be other structural forms. Please refer toFigure 4-1 、 Figure 4-2 and Figure 7 The guide component 306 is usually mounted on the shaft cover 301, and a mounting hole 3012 can be arranged on the shaft cover 301, and part of the structure of the guide component 306 is mounted in the mounting hole 3012. In order to further reduce the swing range of the guide component 306 structure caused by falling, and reduce the risk of the guide component 306 structure hitting the flexible screen, the application further proposes a structural design scheme as shown in Figure 7 The gap between the base 302 and the guide component connected to the shaft cover in the Y direction is very small, and the distance F between the two is about 0-0.20mm. The advantage is that the swing range of the guide component 306 caused by the impact of the mobile phone falling on the ground is greatly reduced due to the support and interception of the base 302, thereby reducing the risk of the guide component 306 structure hitting the flexible screen 100.

[0063] It should be emphasized that although only the size range is given above, other specific values within the size range are not listed. Those skilled in the art should understand that the size range described in the application includes all values within the range including the boundary values, for example, the protruding amount of the protruding part protruding out of the shaft cover outer wall is 0-0.5mm. It should be understood that the protruding amount of the protruding part protruding out of the shaft cover outer wall can be any value between 0-0.5mm (including boundary values 0 and 0.5mm). Similarly, other numerical ranges are also the same, and will not be explained one by one here.

[0064] In order to adapt to the arrangement of the guide component, the protruding part 3022 on the base 302 can be divided into two sides of the folding shaft of the flexible screen 100 to avoid the installation space of the guide component. That is, the base includes a body 3023, and two protruding parts 3022 are extended outward from the local end of the body 3023, and the two protruding parts 3022 have a predetermined distance therebetween.

[0065] The number of protruding parts 3022 can be one, two or more. The Figure 4-1 and Figure 4-2 An example of arranging two protruding parts 3022 is given.

[0066] Other structures of the folding electronic device can refer to the prior art, and will not be described here.

[0067] The principles and implementation modes of the application are described by applying specific examples in this paper, and the above examples are only used to help understand the method and its core idea. It should be noted that for ordinary skilled persons in the technical field, some improvements and modifications can be made without departing from the principles of the application, and these improvements and modifications also fall within the protection scope of the claims of the application.

Claims

1. An electronic device, comprising: The hinge mechanism includes a base and a shaft cover, two main body parts are rotationally connected to the base so that the two main body parts are folded or unfolded relative to each other, and the distance between the base and the main body parts is not greater than the distance between the shaft cover and the main body parts along the direction parallel to the rotation axis of the hinge mechanism; the base includes a body and a protruding part extending outward from the end part of the body, the protruding part at least partially extends between the shaft cover and the main body parts, or the outer end of the protruding part is flush with the outer wall of the shaft cover.

2. The electronic device of claim 1, wherein, The protruding part extends through the shaft cover to between the shaft cover and the main body parts.

3. The electronic device of claim 1, wherein, The protruding amount of the protruding part protruding out of the outer wall of the shaft cover ranges from 0 to 0.5 mm.

4. The electronic device of any one of claims 1 to 3, wherein, The number of the protruding parts is one or more.

5. The electronic device of any one of claims 1 to 3, wherein, The distance between the base and the main body parts along the direction parallel to the rotation axis ranges from 0.01 to 0.5 mm.

6. The electronic device of any one of claims 1 to 3, wherein, The distance between the shaft cover and the main body parts along the direction parallel to the rotation axis ranges from 0.01 to 0.8 mm.

7. The electronic device of any one of claims 1 to 3, wherein, The hinge mechanism further includes a guide component mounted on the shaft cover for guiding the folding deformation of the bending part of the flexible screen, and the gap between the base and the guide component along the direction parallel to the rotation axis ranges from 0 to 0.2 mm.

8. The electronic device of claim 5, wherein, The hinge mechanism further includes a guide component mounted on the shaft cover for guiding the folding deformation of the bending part of the flexible screen, and the gap between the base and the guide component along the direction parallel to the rotation axis ranges from 0 to 0.2 mm.

9. The electronic device of claim 6, wherein, The hinge mechanism further includes a guide component mounted on the shaft cover for guiding the folding deformation of the bending part of the flexible screen, and the gap between the base and the guide component along the direction parallel to the rotation axis ranges from 0 to 0.2 mm.

10. The electronic device of any one of claims 1 to 3, wherein, The base further has a retaining wall structure for limiting the movement displacement amount of the shaft cover towards the side of the flexible screen, and the gap between the retaining wall structure and the shaft cover along the direction parallel to the rotation axis in the folded state ranges from 0 to 0.3 mm.

11. The electronic device of claim 5, wherein, The base further has a retaining wall structure for limiting the movement displacement amount of the shaft cover towards the side of the flexible screen, and the gap between the retaining wall structure and the shaft cover along the direction parallel to the rotation axis in the folded state ranges from 0 to 0.3 mm.

12. The electronic device of claim 6, wherein, The base further has a retaining wall structure for limiting the movement displacement amount of the shaft cover towards the side of the flexible screen, and the gap between the retaining wall structure and the shaft cover along the direction parallel to the rotation axis in the folded state ranges from 0 to 0.3 mm.

13. The electronic device of claim 7, wherein, The base further has a retaining wall structure for limiting the movement displacement amount of the shaft cover towards the side of the flexible screen, and the gap between the retaining wall structure and the shaft cover along the direction parallel to the rotation axis in the folded state ranges from 0 to 0.3 mm.

14. The electronic device of claim 10, wherein, In the folded state, the gap between the protruding part and the shaft cover along the first direction ranges from 0 to 0.4 mm, wherein the first direction is perpendicular to the rotation axis and points to the flexible screen; Alternatively / and, in the folded state, the gap between the retaining wall structure and the shaft cover along the first direction ranges from 0 to 0.4 mm, wherein the first direction is perpendicular to the rotation axis and points to the flexible screen.

15. The electronic device of claim 14, wherein, The retaining wall structure is a vertical surface or an inclined surface, and the shaft cover is provided with an abutting surface matched with the retaining wall structure.

16. The electronic device of any one of claims 1-3, wherein, The main body part comprises a middle frame, and the distance between the base and the middle frame is not greater than the distance between the shaft cover and the middle frame along the direction parallel to the rotation shaft. Alternatively, The edge of the middle frame of the main body part close to the end of the base has a vertical wall, and the base and the shaft cover are both located inside the vertical wall, and the distance between the base and the vertical wall is not greater than the distance between the shaft cover and the vertical wall.

17. The electronic device of claim 5, wherein, The main body part comprises a middle frame, and the distance between the base and the middle frame is not greater than the distance between the shaft cover and the middle frame along the direction parallel to the rotation shaft. Alternatively, The edge of the middle frame of the main body part close to the end of the base has a vertical wall, and the base and the shaft cover are both located inside the vertical wall, and the distance between the base and the vertical wall is not greater than the distance between the shaft cover and the vertical wall.

18. The electronic device of claim 6, wherein, The main body part comprises a middle frame, and the distance between the base and the middle frame is not greater than the distance between the shaft cover and the middle frame along the direction parallel to the rotation shaft. Alternatively, The edge of the middle frame of the main body part close to the end of the base has a vertical wall, and the base and the shaft cover are both located inside the vertical wall, and the distance between the base and the vertical wall is not greater than the distance between the shaft cover and the vertical wall.

19. The electronic device of claim 7, wherein, The main body part comprises a middle frame, and the distance between the base and the middle frame is not greater than the distance between the shaft cover and the middle frame along the direction parallel to the rotation shaft. Alternatively, The edge of the middle frame of the main body part close to the end of the base has a vertical wall, and the base and the shaft cover are both located inside the vertical wall, and the distance between the base and the vertical wall is not greater than the distance between the shaft cover and the vertical wall.

20. The electronic device of claim 10, wherein, The main body part comprises a middle frame, and the distance between the base and the middle frame is not greater than the distance between the shaft cover and the middle frame along the direction parallel to the rotation shaft. Alternatively, The edge of the middle frame of the main body part close to the end of the base has a vertical wall, and the base and the shaft cover are both located inside the vertical wall, and the distance between the base and the vertical wall is not greater than the distance between the shaft cover and the vertical wall.

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