Electronic device

Abstract

Provided in the present application is an electronic device. The electronic device comprises a first housing, a second housing and a folding mechanism, wherein the folding mechanism is connected between the first housing and the second housing, and the first housing and the second housing can be folded or unfolded relative to each other by means of the movement of the folding mechanism. The folding mechanism comprises a main shaft and a connecting assembly, wherein the main shaft is located between the first housing and the second housing; the connecting assembly is connected to the main shaft, the first housing and the second housing; the main shaft comprises a main shaft body and a dust-proof member; the dust-proof member is fixed to the main shaft body; when the electronic device is in a folded state, the first housing and the second housing are arranged opposite each other, at least part of the main shaft body is exposed relative to the first housing and the second housing, and at least part of the dust-proof member covers a gap between the main shaft body and the first housing. In this way, external dust, sand particles, etc., are less prone to entering the interior of the electronic device from the gap between the main shaft body and the first housing to affect the reliability of the electronic device.

Description

Electronic device

[0001] The present application claims priority to the Chinese patent application No. 202421830344.0, filed on July 30, 2024, entitled "Electronic device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of foldable electronic products, and in particular to an electronic device. BACKGROUND

[0003] The foldable electronic device can generally include a first housing, a second housing, and a folding mechanism connected between the first housing and the second housing. The first housing and the second housing can be relatively closed or flattened by the folding mechanism. In order to prevent interference or friction from occurring during the relative closing or flattening of the first housing and the second housing, which can affect the hand feeling or cause failure, the foldable electronic device generally reserves a gap between the first housing and the folding mechanism, and between the second housing and the folding mechanism.

[0004] However, when the first housing and the second housing are relatively closed, dust, sand particles and the like are easy to enter the interior of the electronic device from the gap between the first housing and the second housing and the folding mechanism, causing damage to the electronic device. Therefore, when the foldable electronic device is in a closed state, it is urgent to prevent foreign matter from entering the interior of the electronic device. SUMMARY

[0005] The present application provides an electronic device. When the electronic device is in a closed state, external dust and sand particles are not easy to enter the interior of the electronic device from the gap between the first housing and the second housing and the folding mechanism.

[0006] An electronic device is provided. The electronic device includes a first housing, a second housing, and a folding mechanism connected between the first housing and the second housing, the first housing and the second housing being capable of being closed or unfolded relative to each other by movement of the folding mechanism; the folding mechanism includes a main shaft and a connecting assembly, the main shaft being located between the first housing and the second housing, and the connecting assembly connecting the main shaft, the first housing, and the second housing; the main shaft includes a main shaft body and a dustproof member, the dustproof member being fixed to the main shaft body, when the electronic device is in a closed state, the first housing and the second housing are arranged opposite to each other, at least part of the main shaft body is exposed relative to the first housing and the second housing, and at least part of the dustproof member covers a gap between the main shaft body and the first housing. It can be understood that, in a conventional electronic device, in order to facilitate relative unfolding and closing of the first housing and the second housing, a gap is usually left between the first housing, the second housing, and the folding mechanism. When the first housing and the second housing are closed relative to each other, a relatively large gap exists between the folding mechanism and the first housing and the second housing. Dust, sand, and the like outside the electronic device can easily enter the inside of the electronic device from the gap, affecting the reliability of the electronic device.

[0007] Therefore, in the embodiments of the present application, the folding mechanism includes the dustproof member, and when the electronic device is in the closed state, at least part of the dustproof member can cover the gap between the main shaft body and the first housing. In this way, dust, sand, and the like outside the electronic device are not easy to enter the inside of the electronic device from the gap between the main shaft body and the first housing, thereby affecting the reliability of the electronic device.

[0008] In some embodiments, the electronic device includes a first housing, a second housing, and a folding mechanism connected between the first housing and the second housing, the first housing and the second housing being capable of being closed or unfolded relative to each other by movement of the folding mechanism; the folding mechanism includes a main shaft and a connecting assembly, the main shaft being located between the first housing and the second housing, and the connecting assembly connecting the main shaft, the first housing, and the second housing; the electronic device further includes a dustproof member, the dustproof member being fixed to the first housing, when the electronic device is in a closed state, the first housing and the second housing are arranged opposite to each other, and at least part of the dustproof member covers a gap between the main shaft and the first housing.

[0009] It can be understood that, in a conventional electronic device, in order to facilitate relative unfolding and closing of the first housing and the second housing, a gap is usually left between the first housing, the second housing, and the folding mechanism. When the first housing and the second housing are closed relative to each other, a relatively large gap exists between the folding mechanism and the first housing and the second housing. Dust, sand, and the like outside the electronic device can easily enter the inside of the electronic device from the gap, affecting the reliability of the electronic device.

[0010] To this end, in the embodiment of the present application, the dustproof piece is arranged and fixed to the first shell, so that at least part of the dustproof piece can cover the gap between the main shaft and the first shell when the electronic device is in the closed state. In this way, dust, sand and the like outside the electronic device are less likely to enter the interior of the electronic device from the gap between the main shaft and the first shell, thereby affecting the reliability of the electronic device.

[0011] In some embodiments, the dustproof piece comprises a main body part and a first extension part, the main body part is fixedly connected to the main shaft body, and the first extension part extends from one side of the main shaft body, and the first extension part covers the gap between the main shaft body and the first shell when the electronic device is in the closed state.

[0012] In the embodiment, the dustproof piece can further comprise a first extension part, the first extension part of the dustproof piece can extend towards the first shell relative to the main shaft body, thereby covering the gap between the main shaft body and the first shell. In this way, dust, sand and the like outside the electronic device are less likely to enter the interior of the electronic device from the gap between the main shaft body and the first shell, thereby affecting the reliability of the electronic device.

[0013] In some embodiments, the dustproof piece further comprises a second extension part, the second extension part extends from one side of the main shaft body, and the second extension part covers the gap between the main shaft body and the second shell when the electronic device is in the closed state.

[0014] In the embodiment, the dustproof piece can further comprise a second extension part, the second extension part of the dustproof piece can extend towards the second shell relative to the main shaft when the electronic device is in the closed state, thereby covering the gap between the main shaft body and the second shell. In this way, when the electronic device is in the closed state, the area of the gap of the electronic device can be further reduced. Dust, sand and the like outside the electronic device are less likely to enter the interior of the electronic device from the gap between the main shaft body and the second shell, thereby affecting the reliability of the electronic device.

[0015] In some embodiments, the first shell comprises a first inner surface, the first inner surface of the first shell faces the main shaft body, the second shell comprises a second inner surface, the second inner surface of the second shell faces the main shaft body; and the first extension part is in contact with the first inner surface of the first shell when the electronic device is in the closed state.

[0016] In the embodiment, the first extension part can completely cover the gap between the main shaft body and the first shell, thereby further improving the dustproof effect of the main shaft and the folding mechanism.

[0017] In some embodiments, the first shell comprises a first inner surface, the first inner surface of the first shell faces the spindle shaft body, the second shell comprises a second inner surface, the second inner surface of the second shell faces the spindle shaft body; when the electronic device is in the closed state, the second extension part is in contact with the second inner surface of the second shell.

[0018] In the present embodiment, the second extension part can completely cover the gap between the spindle shaft body and the second shell, thereby further improving the dustproof effect of the spindle and the folding mechanism.

[0019] In some embodiments, the electronic device further comprises a flexible screen, the flexible screen is mounted to the first shell and the second shell; when the electronic device is in the unfolded state, the first shell and the second shell are located on the same side of the flexible screen, the first shell and the second shell cover the spindle, the main body part is located between the first shell, the second shell and the flexible screen, and the first extension part is located between the first shell and the flexible screen.

[0020] It can be understood that when the electronic device is in the unfolded state, the first shell and the second shell can cover the spindle. At this time, the gap between the spindle shaft body and the first shell and the second shell is small, and dust, sand and the like are not easy to enter the gap between the spindle shaft body and the first shell and the second shell and enter the interior of the electronic device.

[0021] In the present embodiment, the dustproof member can be located on the inner side of the first shell and the second shell. The dustproof member can be covered by the first shell and the second shell. The first shell and the second shell can be used to protect the dustproof member, which is conducive to prolonging the service life of the dustproof member. Moreover, during the conversion of the electronic device between the closed state and the unfolded state, the dustproof member does not bend with the movement of the first shell and the second shell, and the dustproof member is not easy to be damaged due to bending, and has a long service life.

[0022] In some embodiments, the spindle shaft body comprises a spindle body and a back cover, the back cover is fixedly connected to the spindle body and is oppositely arranged with the spindle body, at least part of the main body part is located between the spindle body and the back cover, and the main body part is fixedly connected to the spindle body and / or the back cover; the first extension part protrudes from one side of the spindle body and the back cover; and the second extension part protrudes from the other side of the spindle body and the back cover.

[0023] It can be understood that in the present embodiment, the main body part can be fixed to the back cover, and then the back cover and the dustproof member are assembled with the spindle body. Alternatively, the main body part can be fixed to the spindle body, and then the spindle body and the dustproof member are assembled with the back cover. In this way, the assembly between the dustproof member and the spindle shaft body is facilitated. Moreover, at least part of the main body part can be located between the spindle body and the back cover. In this way, the connection area between the dustproof member and the spindle body and the back cover is large, and the connection stability is good.

[0024] In some embodiments, the main shaft body includes a first face and a second face arranged oppositely, the back cover includes a third face and a fourth face arranged oppositely, the first face faces the third face, and at least part of the main body portion is located between the first face and the third face; the main body portion includes a first surface and a second surface arranged oppositely, the first surface faces the first face, at least part of the first surface has the same shape as at least part of the first face, and the second surface faces the third face, at least part of the second surface has the same shape as at least part of the third face.

[0025] In the embodiment, at least part of the first surface of the dustproof member has the same shape as at least part of the first face of the main shaft body, so that the positioning effect when the dustproof member is assembled with the main shaft body is good. The assembly between the dustproof member and the main shaft body is relatively convenient. At least part of the second surface of the dustproof member has the same shape as at least part of the third face of the back cover, so that the positioning effect when the dustproof member is assembled with the back cover is good. The assembly between the dustproof member and the back cover is relatively convenient.

[0026] In some embodiments, at least part of the first surface is attached to the first face, and at least part of the second surface is attached to the third face. In this way, on the one hand, the gap between the main body portion and the main shaft body and the back cover can be eliminated, so as to avoid dust, sand and the like from entering the inside of the main shaft through the gap between the main body portion and the main shaft body and the back cover, thereby affecting the reliability of the main shaft and the folding mechanism. On the other hand, the main body portion can be tightly attached to the main shaft body and the back cover, thereby improving the connection stability between the main body portion and the main shaft body and the back cover.

[0027] In some embodiments, the main body portion includes a first sub-main body portion, a second sub-main body portion, and a third sub-main body portion, the third sub-main body portion is connected between the first sub-main body portion and the second sub-main body portion, the first extension portion is fixedly connected to the first sub-main body portion and located on a side of the first sub-main body portion away from the third sub-main body portion, and the second extension portion is fixedly connected to the second sub-main body portion and located on a side of the second sub-main body portion away from the third sub-main body portion; the first sub-main body portion and the second sub-main body portion are arranged oppositely and spaced apart, the first sub-main body portion, the second sub-main body portion, and the third sub-main body portion collectively enclose an accommodation space, and part of the main shaft body is located in the accommodation space; the main shaft body further includes a circumferential side surface connecting the first face and the second face, when the electronic device is in the closed state, the first extension portion is located between the circumferential side surface and the first shell, and the second extension portion is located between the circumferential side surface and the second shell.

[0028] In the embodiment, by arranging the structure of the dustproof member, part of the main shaft body can be located in the accommodation space of the dustproof member, that is, the dustproof member can surround at least part of the main shaft body, thereby facilitating the improvement of the connection stability between the dustproof member and the main shaft body, and the dustproof member is not prone to falling off.

[0029] In some embodiments, the first extension part is attached to at least part of the side surface of the main shaft body and at least part of the circumferential surface. In this way, the gap between the first extension part and the main shaft body can be eliminated, so that dust, sand and the like can be prevented from entering the interior of the main shaft from the gap between the first extension part and the main shaft body, thereby affecting the reliability of the main shaft and the folding mechanism.

[0030] In some embodiments, the second extension part is attached to at least part of the side surface of the main shaft body and at least part of the circumferential surface. In this way, the gap between the second extension part and the main shaft body can be eliminated, so that dust, sand and the like can be prevented from entering the interior of the main shaft from the gap between the second extension part and the main shaft body, thereby affecting the reliability of the main shaft and the folding mechanism.

[0031] In some embodiments, the first extension part includes a first section and a second section, the second section is connected to the first section, the first section is connected to the main body part, and along the length extension direction of the main shaft body, the first section and the main body part are located on the same side of the second section; when the electronic device is in the closed state, along the arrangement direction of the first shell and the second shell, at least part of the first section is located between the first shell and the main shaft body; along the length extension direction of the main shaft body, at least part of the second section is located between the first shell and the main shaft body.

[0032] It can be understood that in the present embodiment, along the arrangement direction of the first shell and the second shell, the first section of the first extension part can extend to between the main shaft body and the first shell to cover the gap between the main shaft body and the first shell. Along the length extension direction of the main shaft body, the second section of the first extension part can extend to between the main shaft body and the second shell to cover the gap between the main shaft body and the second shell. In this way, the first extension part of the dustproof piece can cover the gap between the main shaft body and the first shell in at least two directions, and the dustproof effect is better.

[0033] In some embodiments, the dustproof piece is a flexible piece. It can be understood that the dustproof piece can deform after being stressed, so that the dustproof piece is not easy to interfere with or wear between the main shaft body of the main shaft body and the back cover, the first shell and the second shell during the unfolding and folding of the electronic device.

[0034] In some embodiments, the dustproof piece is fixed to the main shaft body, and the material of the dustproof piece is silicone or soft glue. It can be understood that the materials such as soft glue and silicone can better profile the main shaft body, the first shell and the second shell, so that the shape of the dustproof piece can better match the shape of the gap between the main shaft body and the first shell and the second shell, for example, the width of the dustproof piece at different positions in the gap can match the width of the gap at the position, so that the dustproof piece can better shield the gap between the main shaft body and the first shell and the second shell, and the dustproof effect is better.

[0035] In some embodiments, the dustproof member is fixed to the first inner surface of the first shell, and the material of the dustproof member is foam. It can be understood that the preparation process of foam is mature, and the foam semi-finished product can be directly cut and shaped, so that the foam matching the shape of the gap can be cut according to the shape of the gap to be shielded. In this way, the processing of the dustproof member is relatively simple, and the cutting time is relatively short, which is beneficial to shorten the production time of the dustproof member and improve the production efficiency.

[0036] In some embodiments, the main body part includes a first part, a second part, and a third part, the third part is connected between the first part and the second part, the first part is connected to the first extension part, and the second part is connected to the second extension part; at least part of the third part is located between the main shaft body and the back cover and is fixedly connected to the back cover.

[0037] In some embodiments, the first part, the second part, the first extension part, and the second extension part are flexible parts, the material of the third part is a metal material, and the third part is welded to the back cover.

[0038] In the present embodiment, the first part, the second part, the first extension part, and the second extension part can deform after being stressed, and are not easy to interfere with or wear the main shaft body of the main shaft body and the back cover, the first shell, and the second shell. The third part can be fixed to the back cover in advance to form a whole, and then the back cover and the dustproof member can be assembled with the main shaft body together. Compared with the way that the dustproof member is fixed to the back cover or the main shaft body by glue dispensing, the third part of the present embodiment is fixed to the back cover by welding, so that the assembly between the dustproof member and the back cover can be convenient and fast, and the production efficiency is relatively high. Moreover, the third part is fixed to the back cover by welding, so that the connection between the dustproof member and the back cover is relatively firm, and the dustproof member is not easy to fall off.

[0039] In addition, when the third part is made of steel, iron or the like, it can have relatively large rigidity and is not easy to deform. The dustproof member can be provided with some positioning structures, such as positioning columns or positioning holes, on the third part, so as to facilitate the positioning between the dustproof member and the main shaft body and the back cover, thereby improving the positioning accuracy of the dustproof member during assembly, and the positioning effect of the dustproof member is good.

[0040] In some embodiments, the main shaft body comprises a first face and a second face arranged oppositely, the back cover comprises a third face and a fourth face arranged oppositely, the first face faces the third face, and at least part of the third part is located between the first face and the third face; the third part comprises a fifth face and a sixth face arranged oppositely, the fifth face faces the first face, at least part of the fifth face has the same shape as at least part of the first face, and the sixth face faces the third face, at least part of the sixth face has the same shape as at least part of the third face. In this way, the positioning effect of the dustproof piece when assembled with the main shaft body and the back cover is better. The assembly between the dustproof piece and the main shaft body and the back cover is more convenient.

[0041] In some embodiments, the third part is embedded in the fourth part and the fifth part. In this way, on the one hand, the connection stability between the third part and the fourth part and the fifth part can be improved, and on the other hand, the integrity of the dustproof piece can be improved, and the subsequent assembly of the dustproof piece is facilitated.

[0042] In some embodiments, the main body part comprises a fourth part and a fifth part, the fourth part is connected to the first extension part and the second extension part, and the fifth part is fixedly connected between the fourth part and the back cover.

[0043] In some embodiments, the fourth part, the first extension part, and the second extension part are flexible parts, the material of the fifth part is a metal material, and the fifth part is welded to the back cover.

[0044] It can be understood that in the present embodiment, the fourth part, the first extension part, and the second extension part can deform under stress, and are not prone to interference and wear between the main shaft body of the main shaft body and the back cover, the first shell, and the second shell. The fifth part can be fixed to the back cover in advance to form a whole, and then the back cover and the dustproof piece can be assembled with the main shaft body. Compared with the way of fixing the dustproof piece to the back cover or the main shaft body by glue dispensing, the fifth part of the present embodiment is fixed to the back cover by welding, so that the pressure maintaining operation can be omitted, the assembly between the dustproof piece and the back cover is more convenient and fast, and the production efficiency is higher. Moreover, the connection between the dustproof piece and the back cover is more firm, and the dustproof piece is not prone to falling off.

[0045] In some embodiments, the fifth part is embedded in the fourth part. In this way, on the one hand, the connection stability between the fifth part and the fourth part can be improved, and on the other hand, the integrity of the dustproof piece can be improved, and the subsequent assembly of the dustproof piece is facilitated.

[0046] In some embodiments, in the length extension direction of the main shaft body, the main shaft body comprises a first end part and a second end part arranged oppositely, and the dustproof piece is fixed to the first end part or the second end part.

[0047] It can be understood that, at the positions of the first end and the second end, the gap between the main shaft body and the first shell and the second shell is large, and the sand and dust invasion is serious, which needs to be protected. Therefore, in the embodiment, the dustproof member of the main shaft can be fixed to the first end or the second end of the main shaft body to improve the dustproof effect of the first end or the second end.

[0048] In some embodiments, the number of dustproof members is at least two, at least one dustproof member is fixed to the first end of the main shaft body, and at least one dustproof member is fixed to the second end of the main shaft body. In this way, the dustproof effect of the first end and the second end can be improved, so that the dustproof effect of the electronic device is better. BRIEF DESCRIPTION OF DRAWINGS

[0049] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background art, the drawings needed to be used in the embodiments of the present application or the background art will be described below.

[0050] FIG. 1A is a structural schematic diagram of an electronic device in an open state according to an embodiment of the present application;

[0051] FIG. 1B is a partial structural exploded view of the electronic device shown in FIG. 1A in some embodiments;

[0052] FIG. 2 is a structural schematic diagram of the electronic device shown in FIG. 1A in a closed state;

[0053] FIG. 3 is a partial structural schematic diagram of the main shaft shown in FIG. 2 in some embodiments;

[0054] FIG. 4 is a structural schematic diagram of the main shaft shown in FIG. 3 from another angle;

[0055] FIG. 5 is a partial structural exploded view of the main shaft shown in FIG. 3 in some embodiments;

[0056] FIG. 6 is a structural schematic diagram of the main shaft body shown in FIG. 5 from another angle in some embodiments;

[0057] FIG. 7 is a structural schematic diagram of the back cover shown in FIG. 5 from another angle in some embodiments;

[0058] FIG. 8A is a structural schematic diagram of a dustproof member shown in FIG. 5 in some embodiments;

[0059] FIG. 8B is a structural schematic diagram of the dustproof member shown in FIG. 8A from another angle;

[0060] FIG. 9A is a structural schematic diagram of an injection mold for manufacturing the dustproof member in the embodiment of the present application;

[0061] FIG. 9B is a partial structural exploded view of the injection mold shown in FIG. 9A;

[0062] Fig. 9C is a partially exploded view of the injection mold shown in Fig. 9A, at another angle;

[0063] Fig. 10 is a partially cross-sectional view of the spindle shown in Fig. 3, along A-A, in some embodiments;

[0064] Fig. 11A is a partially exploded view of the spindle shown in Fig. 3, in some embodiments;

[0065] Fig. 11B is a partially exploded view of the spindle shown in Fig. 11A, at another angle;

[0066] Fig. 12 is a partially exploded view of the spindle shown in Fig. 3, in some embodiments;

[0067] Fig. 13 is a partially exploded view of the spindle shown in Fig. 3, in some embodiments;

[0068] Fig. 14 is a partially exploded view of the electronic device shown in Fig. 2, at another angle, in some embodiments;

[0069] Fig. 15 is a partially cross-sectional view of the electronic device shown in Fig. 14, along B-B, in some embodiments;

[0070] Fig. 16 is a partially cross-sectional view of the electronic device shown in Fig. 14, along C-C, in some embodiments;

[0071] Fig. 17 is a partially cross-sectional view of the electronic device shown in Fig. 14, in an open state, in some embodiments;

[0072] Fig. 18 is a partially exploded view of the dust guard shown in Fig. 5, in other embodiments;

[0073] Fig. 19 is a partially exploded view of the dust guard shown in Fig. 18, at another angle;

[0074] Fig. 20 is a partially cross-sectional view of the spindle shown in Fig. 3, along D-D, in other embodiments;

[0075] Fig. 21 is a partially exploded view of the dust guard shown in Fig. 5, in other embodiments;

[0076] Fig. 22 is a partially cross-sectional view of the electronic device shown in Fig. 2, in other embodiments;

[0077] Fig. 23 is a partially exploded view of the electronic device shown in Fig. 22, in some embodiments;

[0078] Fig. 24 is a partially cross-sectional view of the electronic device shown in Fig. 22, along E-E, in some embodiments. DETAILED DESCRIPTION

[0079] The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0080] In the description of the embodiments of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "mount", "connect" should be interpreted broadly, for example, "connect" can be detachable connection, but also can be non-detachable connection; can be direct connection, but also through the intermediate medium indirectly connected. The orientation language mentioned in the embodiments of the present application, such as "upper", "lower", "left", "right", "inner", "outer", "top", "side" and the like, are only the direction of the accompanying drawings, therefore, the orientation language used is for better, more clearly illustrate and understand the embodiments of the present application, and is not indicative or implied that the device or element referred to must have a particular orientation, constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the embodiments of the present application.

[0081] In the embodiments of the present application, the terms "first", "second", "third", "fourth" and the like are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second", "third", "fourth" and the like can explicitly or implicitly include one or more of the features.

[0082] In the embodiments of the present application, "and / or" is only a description of the association relationship between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0083] In this specification, reference or "some embodiments" and the like mean that the specific features, structures or characteristics described in conjunction with the embodiment are included in one or more embodiments of the present application. Therefore, the statements "in some embodiments", "in another some embodiments", "in other some embodiments", "in other embodiments" and the like appearing in different places in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. The terms "include", "have" and their variants mean "include but not limited to", unless otherwise specifically emphasized.

[0084] The term "a plurality of" means at least two. The terms "parallel", "perpendicular", and the like, are defined in relation to the current process level, rather than the absolute strict definition in mathematics, and a small amount of deviation is allowed, and approximately parallel, approximately perpendicular, and the like are all acceptable. For example, A is parallel to B, which means that A and B are parallel or approximately parallel, and the included angle between A and B can be between 0° and 10°. For another example, A is perpendicular to B, which means that A and B are perpendicular or approximately perpendicular, and the included angle between A and B can be between 80° and 100°. The term "integrally formed" means that one part is connected to another part during the process of forming the part, and the two parts are connected together without the need for reprocessing (such as bonding, welding, snap connection, screw connection).

[0085] It can be understood that the specific embodiments described herein are only used to explain the related embodiments, and not to limit the embodiments. In addition, it should be noted that, for the convenience of description, only parts related to the embodiments are shown in the drawings.

[0086] It can be understood that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0087] The present application will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0088] Please refer to FIGS. 1A to 2, FIG. 1A is a structural schematic diagram of an electronic device 100 in an open state according to an embodiment, FIG. 1B is a partial structural exploded view of the electronic device 100 shown in FIG. 1A in some embodiments, and FIG. 2 is a structural schematic diagram of the electronic device 100 shown in FIG. 1A in a closed state. The electronic device 100 can be a mobile phone, a tablet computer, a notebook computer, a wearable device, and the like. The wearable device can be a smart watch, a smart bracelet, and the like. The electronic device 100 is taken as a mobile phone for example in the embodiments of the present application. Of course, other types of electronic devices can also adopt similar structures, which will not be described hereinafter.

[0089] In some embodiments, the electronic device 100 can include a first housing 10, a second housing 20, a folding mechanism 30, and a flexible screen 40. It can be understood that FIGS. 1A to 2 only schematically show some components included in the electronic device 100, and the actual shape, actual size, actual position, and actual structure of these components are not limited by FIGS. 1A to 2.

[0090] It can be understood that the electronic device 100 can have more components, or the electronic device 100 can have fewer components, for example, the electronic device 100 can also not include the flexible screen 40.

[0091] For example, the folding mechanism 30 is connected between the first housing 10 and the second housing 20, and the first housing 10 and the second housing 20 can be relatively closed or flattened by the movement of the folding mechanism 30. For example, as shown in FIG. 1A, the first housing 10 and the second housing 20 can be relatively opened by the folding mechanism 30 to be in a flattened state (as shown in FIG. 1A). At this time, the first housing 10 and the second housing 20 are substantially 180° (allowing slight deviations, for example, 165°, 177°, or 185°), that is, the first housing 10 and the second housing 20 can be in the same plane. For example, as shown in FIG. 2, the first housing 10 and the second housing 20 can also be relatively folded to be in a closed state. At this time, the first housing 10 and the second housing 20 can be relatively arranged. For example, the first housing 10 and the second housing 20 can be arranged in parallel (allowing slight deviations, for example, 0°, 1°, or 2°). It can be understood that the first housing 10 and the second housing 20 can be switched between the flattened state and the closed state.

[0092] For ease of description, for example, the length direction of the electronic device 100 shown in FIG. 1A is defined as the X-axis direction, the width direction of the electronic device 100 is defined as the Y-axis direction, and the thickness direction of the electronic device 100 is defined as the Z-axis direction. It can be understood that the coordinate system of the electronic device 100 can also be flexibly set according to specific needs.

[0093] Exemplarily, the flexible screen 40 is mounted on the same side of the first shell 10 and the second shell 20. The flexible screen 40 is configured to display images, texts, videos and the like. In some examples, the flexible screen 40 can also integrate display function and touch sensing function. The display function of the flexible screen 40 is configured to display texts, images, videos and the like, and the touch sensing function of the flexible screen 40 is configured to detect touch actions of a user to realize information interaction between man and machine. The flexible screen 40 can be a liquid crystal display (LCD), an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode display screen, a micro light-emitting diode display screen, a micro organic light-emitting diode display screen, or a quantum dot light emitting diode (QLED) display screen.

[0094] Exemplarily, the flexible screen 40 can include a first display area 401, a third display area 403 and a second display area 402 arranged in sequence. The corresponding part of the flexible screen 40 and the first shell 10 is the first display area 401, and the first display area 401 is fixed to the first shell 10. The corresponding part of the flexible screen 40 and the second shell 20 is the second display area 402, and the second display area 402 is fixed to the second shell 20. The corresponding part of the flexible screen 40 and the folding mechanism 30 is the third display area 403. In the process of the first shell 10 and the second shell 20 being relatively unfolded or relatively closed, the first shell 10 drives the first display area 401 to rotate, the second shell 20 drives the second display area 402 to rotate, and the third display area 403 deforms under the driving of the first shell 10 and the second shell 20.

[0095] For example, when the electronic device 100 is in the unfolded state, the flexible screen 40 is also in the unfolded state. At this time, the first display area 401, the third display area 403, and the second display area 402 are approximately 180° (allowing a slight deviation, for example, 165°, 177°, or 185°), and the flexible screen 40 has a continuous large-area display area, which can realize large-screen display and provide a better user experience. When the electronic device 100 is in the closed state, the flexible screen 40 is also in the closed state. At this time, the first display area 401 and the second display area 402 are arranged face to face, and the third display area 403 is deformed and bent. The flexible screen 40 is folded inward, and the flexible screen 40 is accommodated inside the first housing 10, the second housing 20, and the folding mechanism 30. At this time, the electronic device 100 has a small size, which is convenient for storage and carrying, and the flexible screen 40 is not easily damaged.

[0096] In other embodiments, when the electronic device 100 is in the closed state, the flexible screen 40 can also be located outside the first housing 10, the second housing 20, and the folding mechanism 30, that is, the flexible screen 40 can be folded outward.

[0097] In some embodiments, the relative rotation axis direction of the first housing 10 and the second housing 20 of the electronic device 100 can be parallel to the Y-axis direction, that is, the folding mechanism 30 can be unfolded or folded relative to the rotation axis direction parallel to the Y-axis direction. In this way, when the electronic device 100 is in the closed state, the size of the electronic device 100 in the X-axis direction is reduced, which is convenient for users to carry. This embodiment is described by taking the rotation axis direction of the electronic device 100 parallel to the Y-axis direction as an example, and at this time, the electronic device 100 can be folded left and right, and the folding and unfolding of the electronic device 100 affects the length of the electronic device 100. In other embodiments, the relative rotation axis direction of the first housing 10 and the second housing 20 can also be parallel to the X-axis direction, that is, the folding mechanism 30 can be unfolded or folded relative to the rotation axis direction parallel to the X-axis direction. At this time, the electronic device 100 can be folded up and down, and the folding and unfolding of the electronic device 100 affects the width of the electronic device 100.

[0098] In some embodiments, the folding mechanism 30 can include a main shaft 30A and a connecting assembly 30B. The main shaft 30A can be located between the first housing 10 and the second housing 20, and the connecting assembly 30B connects the main shaft 30A, the first housing 10 and the second housing 20. For example, the connecting assembly 30B can be mounted on the main shaft 30A, one end of the connecting assembly 30B can be connected to the first housing 10, and the other end can be connected to the second housing 20. By moving the connecting assembly 30B relative to the main shaft 30A, the first housing 10 and the second housing 20 can move relative to the main shaft 30A to achieve relative folding or unfolding between the first housing 10 and the second housing 20. For example, the connecting assembly 30B can be fixedly connected to the first housing 10 and the second housing 20 by screws or other fasteners, or by clamping or bonding, and the present application does not limit this.

[0099] As shown in FIGS. 1A and 1B, when the electronic device 100 is in an unfolded state, the first housing 10 and the second housing 20 together cover the main shaft 30A, which can be hidden between the flexible screen 40 and the first housing 10 and the second housing 20. As shown in FIG. 2, when the electronic device 100 is in a closed state, at least part of the main shaft 30A can be exposed relative to the first housing 10 and the second housing 20. It can be understood that the main shaft 30A can be fully exposed relative to the first housing 10 and the second housing 20. The main shaft 30A can also be partially exposed relative to the first housing 10 and the second housing 20.

[0100] It can be understood that in the embodiments of the present application, the electronic device 100 is taken as an example of a two-fold structure, that is, the electronic device 100 includes two housings that can be folded relative to each other. In some other embodiments, the electronic device 100 can also be a three-fold or more than three-fold structure, that is, the electronic device 100 can include three or more housings that can be folded relative to each other, and any two adjacent housings are connected by a folding mechanism 30. When the electronic device 100 is a three-fold or more than three-fold structure, the structure of the electronic device 100 can be designed adaptively according to the description of the two-fold structure in the present embodiment, and the present application will not repeat it here.

[0101] In conventional electronic devices, in order to facilitate the relative unfolding and closing of the first housing and the second housing, a gap is usually left between the first housing, the second housing and the folding mechanism. When the first housing and the second housing are closed relative to each other, there is a large gap between the folding mechanism and the first housing and the second housing. Dust, sand and other foreign matter on the outside of the electronic device can easily enter the inside of the electronic device from the gap and reach the lower part of the flexible screen. The accumulation of dust, sand and other foreign matter under the flexible screen can easily cause the flexible screen to fail, affecting the reliability of the flexible screen.

[0102] In particular, along the length extension direction of the main shaft, the gap between the opposite ends of the main shaft and the first shell and the second shell is larger, and the sand and dust intrusion phenomenon is more serious, which needs to be protected. Therefore, the application provides a folding mechanism 30, so that when the first shell 10 and the second shell 20 are relatively closed, the gap between the first shell 10 and the second shell 20 and the opposite ends of the main shaft 30A is smaller or even disappears, so that the dust, sand and other particles outside the electronic device 100 can easily enter the inside of the electronic device 100 from the gap.

[0103] Please refer to FIGS. 3-5, FIG. 3 is a partial structural schematic diagram of the main shaft 30A in some embodiments shown in FIG. 2, FIG. 4 is a structural schematic diagram of the main shaft 30A in another angle shown in FIG. 3, and FIG. 5 is a partial structural exploded view of the main shaft 30A in some embodiments shown in FIG. 3. For example, FIG. 3 shows a partial structural schematic diagram of the main shaft 30A in the dashed line frame. It can be understood that FIG. 3 mainly shows a partial structural schematic diagram of one end of the main shaft 30A in the length direction (i.e. Y-axis direction). The structure of the other end of the main shaft 30A in the Y-axis direction can be the same or similar structure, symmetrical or partially symmetrical structure. The basic design of the structure of the other end of the main shaft 30A in the Y-axis direction, the connection relationship design between the components, and the connection relationship design of the components and other structures outside the assembly can refer to the related schemes of the structure shown in FIG. 3. At the same time, the structure of the other end of the main shaft 30A in the Y-axis direction is allowed to be slightly different from the structure shown in FIG. 3 in the detailed structure or position arrangement of the components. Details are not described here.

[0104] In some embodiments, the main shaft 30A can include a main shaft body 31 and a dustproof piece 32. It can be understood that FIGS. 3-5 only schematically show some components included in the main shaft 30A, and the actual shape, actual size, actual position and actual structure of these components are not limited by FIGS. 3-5. The main shaft 30A can have more or fewer components.

[0105] In some embodiments, the main shaft body 31 can include a main shaft body 311 and a back cover 312. The back cover 312 can be fixedly connected to the main shaft body 311 and oppositely arranged with the main shaft body 311. As shown in FIG. 1A, when the electronic device 100 is in the unfolded state, the first shell 10 and the second shell 20 jointly cover the back cover 312 (not shown in the figure), and the back cover 312 can be hidden between the flexible screen 40 and the first shell 10 and the second shell 20. As shown in FIG. 2, when the electronic device 100 is in the closed state, the back cover 312 is exposed relative to the first shell 10 and the second shell 20, the back cover 312 forms part of the appearance piece of the electronic device 100, and the back cover 312 can shield the main shaft body 311 to improve the appearance consistency and aesthetics of the electronic device 100.

[0106] Please refer to FIG. 5 and FIG. 6, FIG. 6 is a structural schematic diagram of the spindle body 311 in another angle in some embodiments.

[0107] In some embodiments, the spindle body 311 can include a shaft portion 3111 and an end portion 3112. The end portion 3112 of the spindle body 311 can be fixedly connected to one side of the shaft portion 3111 along the length extension direction of the spindle shaft body 31. That is, the shaft portion 3111 and the end portion 3112 can be arranged along the Y-axis direction.

[0108] In the present embodiment, the shaft portion 3111 and the end portion 3112 can be an integrally formed structure to simplify the forming process of the spindle body 311. In other embodiments, the shaft portion 3111 and the end portion 3112 can also be formed into an integral structure by bonding, clamping or the like. The present application does not make strict limitations in this regard. For example, the end portion 3112 of the spindle body 311 can be bent relative to the shaft portion 3111. For example, the shaft portion 3111 and the end portion 3112 can be arranged perpendicularly.

[0109] For example, the shaft portion 3111 of the spindle body 311 can have a first surface 3113 and a second surface 3114, and a peripheral side surface 3115 connecting the first surface 3113 and the second surface 3114 of the shaft portion 3111. Among them, the first surface 3113 and the second surface 3114 of the shaft portion 3111 can be arranged oppositely. For example, the portion where the first surface 3113 connects with the peripheral side surface 3115 can be an arc surface. That is, the first surface 3113 and the peripheral side surface 3115 can be smoothly transitioned. In the present embodiment, the first surface 3113 and part of the peripheral side surface 3115 of the shaft portion 3111 can jointly constitute the first inner surface of the spindle body 311. The second surface 3114 of the shaft portion 3111, another part of the peripheral side surface 3115 and the side surface of the end portion 3112 opposite to the shaft portion 3111 can jointly constitute the first outer surface of the spindle body 311.

[0110] In some embodiments, the spindle body 311 can be provided with a protrusion 3116. For example, the protrusion 3116 can be located at the shaft portion 3111 of the spindle body 311. The protrusion 3116 can protrude from the second surface 3114 of the shaft portion 3111 in a direction away from the first surface 3113 of the shaft portion 3111. For example, the protrusion 3116 can be located at the middle position of the spindle body 311. The extension direction of part of the protrusion 3116 can be parallel to the length extension direction of the spindle shaft body 31.

[0111] In some embodiments, the main shaft body 311 can further be provided with a first positioning groove 313. Exemplarily, the first positioning groove 313 can be located on the shaft portion 3111 of the main shaft body 311. The first positioning groove 313 can be recessed from the first face 3113 of the shaft portion 3111 to the second face 3114 of the shaft portion 3111. Exemplarily, the first positioning groove 313 can be disposed close to the end portion 3112 of the main shaft body 311. The first positioning groove 313 can be substantially a triangular groove. The number of the first positioning groove 313 can be one or more. When the number of the first positioning groove 313 is more than one, at least two first positioning grooves 313 are symmetrically distributed with respect to the length extension direction (i.e. the Y-axis direction) of the main shaft body 311.

[0112] In some embodiments, the main shaft body 311 can further be provided with a second positioning groove 314. Exemplarily, the second positioning groove 314 can be located on the shaft portion 3111 of the main shaft body 311. The second positioning groove 314 can be recessed from the first face 3113 of the shaft portion 3111 to the second face 3114 of the shaft portion 3111. Exemplarily, the second positioning groove 314 can be disposed apart from the first positioning groove 313 along the length extension direction of the main shaft body 311. Exemplarily, the second positioning groove 314 can be substantially a circular groove. The number of the second positioning groove 314 can be one or more. When the number of the second positioning groove 314 is more than one, at least two second positioning grooves 314 are symmetrically distributed with respect to the Y-axis direction.

[0113] Exemplarily, the shaft portion 3111 of the main shaft body 311 can further be provided with a first through hole 315. The first through hole 315 can pass through the groove bottom wall of the second positioning groove 314, i.e. pass through the first face 3113 and the second face 3114 of the shaft portion 3111. The number of the first through hole 315 can be one or more. When the number of the first through hole 315 is more than one, at least two first through holes 315 are symmetrically distributed with respect to the length extension direction of the main shaft body 311. The protrusions of the at least two first through holes 315 are arranged along the length extension direction of the main shaft body 311.

[0114] In some embodiments, the main shaft body 311 can further be provided with a third positioning groove 316. Exemplarily, the third positioning groove 316 can be located on the shaft portion 3111 of the main shaft body 311. The third positioning groove 316 can be recessed from the first face 3113 of the shaft portion 3111 to the second face 3114 of the shaft portion 3111. The third positioning groove 316 can be located on the side of the second positioning groove 314 away from the first positioning groove 313. The third positioning groove 316 can be connected to the second positioning groove 314. Exemplarily, the groove inner wall of the third positioning groove 316 can be connected to the groove side wall 3122 of the second positioning groove 314.

[0115] In some embodiments, the main shaft body 311 can further be provided with a first positioning protrusion 317. For example, the first positioning protrusion 317 can be located on the shaft portion 3111 of the main shaft body 311. The first positioning protrusion 317 can protrude from the second face 3114 of the shaft portion 3111 in a direction away from the first face 3113 of the shaft portion 3111. For example, the first positioning protrusion 317 can be located on a side of the third positioning groove 316 away from the first positioning groove 313. For example, the first positioning protrusion 317 can be a circular protrusion. The number of the first positioning protrusions 317 can be one or more. When the number of the first positioning protrusions 317 is more than one, at least two first positioning protrusions 317 are symmetrically distributed with respect to the length extension direction of the main shaft body 311. The at least two first positioning protrusions 317 are arranged along the length extension direction of the main shaft body 311.

[0116] In some embodiments, the main shaft body 311 can further be provided with a second positioning protrusion 318 and a third positioning protrusion 319. For example, the second positioning protrusion 318 and the third positioning protrusion 319 can be located on the shaft portion 3111 of the main shaft body 311. The second positioning protrusion 318 and the third positioning protrusion 319 can protrude from the peripheral side face 3115 of the shaft portion 3111 in a direction away from the shaft portion 3111.

[0117] For example, the second positioning protrusion 318 and the third positioning protrusion 319 can be oppositely arranged. For example, the second positioning protrusion 318 and the third positioning protrusion 319 can be symmetrically distributed with respect to the length extension direction of the main shaft body 311. For example, the number of the second positioning protrusions 318 can be one or more. A plurality of second positioning protrusions 318 can be arranged along the length extension direction of the main shaft body 311. The number of the third positioning protrusions 319 can be one or more. A plurality of third positioning protrusions 319 can be arranged along the length extension direction of the main shaft body 311.

[0118] Please refer to FIG. 5 and FIG. 7. FIG. 7 is a structural schematic view of the back cover 312 in another angle in some embodiments.

[0119] In some embodiments, the back cover 312 can include a top wall 3121 and a side wall 3122. The side wall 3122 is connected to the top wall 3121 and can be arranged in a bent manner with respect to the top wall 3121.

[0120] For example, the top wall 3121 can be substantially in the shape of a quadrilateral plate. The top wall 3121 can include a third face 3121a and a fourth face 3121b arranged oppositely. The side wall 3122 can be arranged in a bent manner with respect to a side of the top wall 3121 facing the third face 3121a.

[0121] Exemplarily, the side wall 3122 can include a first side portion 3122a, a second side portion 3122b, and a third side portion 3122c. The third side portion 3122c is connected between the first side portion 3122a and the second side portion 3122b. The first side portion 3122a and the second side portion 3122b can be oppositely and spacedly arranged. Exemplarily, the first side portion 3122a and the second side portion 3122b can be arranged in a direction perpendicular to the length extension direction of the main shaft body 31.

[0122] Exemplarily, the top portion of the back cover 312 and the side wall 3122 can jointly enclose the mounting space 3120. It can be understood that the third face 3121a of the top wall 3121 can be a side surface of the top wall 3121 facing the mounting space 3120, and the fourth face 3121b of the top wall 3121 can be a side surface of the top wall 3121 facing away from the mounting space 3120. In the embodiment, the fourth face 3121b of the back cover 312 and the side surface of the side wall 3122 facing the mounting space 3120 can jointly form a second inner surface of the back cover 312. The third face 3121a of the back cover 312 and the side surface of the side wall 3122 facing away from the mounting space 3120 can jointly form a second outer surface of the back cover 312.

[0123] In some embodiments, the back cover 312 can be provided with a fourth positioning groove 3123. Exemplarily, the fourth positioning groove 3123 can be located on the top wall 3121 of the back cover 312. The fourth positioning groove 3123 can be recessed from the third face 3121a of the top wall 3121 to the fourth face 3121b of the top wall 3121.

[0124] In some embodiments, the first side portion 3122a of the back cover 312 can be provided with a first avoiding groove 3124. The first avoiding groove 3124 can be in communication with the mounting space 3120. Exemplarily, the opening of the first avoiding groove 3124 can be located on the surface of the first side wall 3122 facing the mounting space 3120. That is, the first avoiding groove 3124 can be recessed from the side surface of the first side wall 3122 facing the mounting space 3120 to the direction away from the mounting space 3120. Exemplarily, the opening of the first avoiding groove 3124 can extend to the side surface of the first side wall 3122 away from the top wall 3121.

[0125] In some embodiments, the second side portion 3122b of the back cover 312 can be provided with a second avoiding slot 3125. The second avoiding slot 3125 can be in communication with the mounting space 3120. An opening of the second avoiding slot 3125 can be located on a side surface of the second side wall 3122 facing the mounting space 3120. That is, the second avoiding slot 3125 can be recessed from the side surface of the second side wall 3122 facing the mounting space 3120 to a direction away from the mounting space 3120. For example, the opening of the second avoiding slot 3125 can extend to a side surface of the second side away from the top wall 3121. For example, the first avoiding slot 3124 and the second avoiding slot 3125 can be oppositely arranged.

[0126] In some embodiments, the third side portion 3122c of the back cover 312 can be provided with an avoiding gap 3126. The avoiding gap 3126 can pass through the third side portion 3122c and be in communication with the mounting space 3120.

[0127] Please refer to FIG. 8A and FIG. 8B, FIG. 8A is a structural schematic diagram of the dustproof member 32 shown in FIG. 5 in some embodiments, and FIG. 8B is a structural schematic diagram of the dustproof member 32 shown in FIG. 8A from another angle.

[0128] In some embodiments, the dustproof member 32 can include a main body portion 321, a first extension portion 322, and a second extension portion 323. For example, the main body portion 321, the first extension portion 322, and the second extension portion 323 are schematically distinguished by dashed lines in both FIG. 8A and FIG. 8B. Among them, the first extension portion 322 and the second extension portion 323 are connected to the main body portion 321 and are located on the same side of the main body portion 321. For example, the first extension portion 322 and the second extension portion 323 can be oppositely and spacedly arranged. In other embodiments, the dustproof member 32 can not include the second extension portion 323, which is not strictly limited in the present application.

[0129] In some embodiments, the main body portion 321 of the dustproof member 32 can include a first sub-main body portion 3211, a second sub-main body portion 3212, and a third sub-main body portion 3213. For example, the main body portion 321, the first extension portion 322, and the second extension portion 323 are schematically distinguished by dashed lines in FIG. 8A. Among them, the third sub-main body portion 3213 is connected between the first sub-main body portion 3211 and the second sub-main body portion 3212. The first sub-main body portion 3211 and the second sub-main body portion 3212 are oppositely and spacedly arranged. At this time, the first sub-main body portion 3211, the second sub-main body portion 3212, and the third sub-main body portion 3213 jointly enclose the accommodating space 320.

[0130] Exemplarily, the third sub-body part 3213 of the main body part 321 can include a first surface 3214 and a second surface 3215 arranged oppositely. The first surface 3214 can face the accommodation space 320, and the second surface 3215 can face away from the accommodation space 320.

[0131] In the embodiment, the side surfaces of the first sub-body part 3211, the second sub-body part 3212 and the third sub-body part 3213 facing the accommodation space 320 can collectively constitute the inner surface of the main body part 321. The side surfaces of the first sub-body part 3211, the second sub-body part 3212 and the third sub-body part 3213 facing away from the accommodation space 320 can collectively constitute the outer surface of the main body part 321.

[0132] In some embodiments, the main body part 321 can be provided with a recessed area 3217. Exemplarily, the recessed area 3217 can be located in the third sub-body part 3213. The recessed area 3217 can be recessed from the first surface 3214 to the second surface 3215 of the main body part 321. Exemplarily, the recessed area 3217 can be located at a middle position of the third sub-body part 3213.

[0133] In some embodiments, the main body part 321 of the dustproof member 32 can further be provided with a fourth positioning protrusion 3261. Exemplarily, the fourth positioning protrusion 3261 can be located in the third sub-body part 3213 and close to the end of the main body part 321. The fourth positioning protrusion 3261 can be protruded from the first surface 3214 of the main body part 321 away from the second surface 3215. Exemplarily, the fourth positioning protrusion 3261 can be a triangular protrusion. The number of the fourth positioning protrusions 3261 can be one or more. When the number of the fourth positioning protrusions 3261 is more than one, at least two fourth positioning protrusions 3261 are symmetrically distributed relative to the length extension direction of the main shaft body 31.

[0134] In some embodiments, the main body part 321 of the dustproof member 32 can further be provided with a fifth positioning recess 3262. Exemplarily, the fifth positioning recess 3262 can be located in the third sub-body part 3213. The fifth positioning recess 3262 can be recessed from the first surface 3214 of the main body part 321 to the second surface 3215. Exemplarily, the fifth positioning recess 3262 can be a circular recess, and the number of the fifth positioning recesses 3262 can be one or more. When the number of the fifth positioning recesses 3262 is more than one, at least two fifth positioning recesses 3262 are symmetrically distributed relative to the Y-axis direction.

[0135] In some embodiments, the main body 321 of the dustproof member 32 can further be provided with a fifth positioning protrusion 3263. For example, the fifth positioning protrusion 3263 can be located on the third sub-main body 3213. The fifth positioning protrusion 3263 can be protruded from the first surface 3214 of the main body 321 in a direction away from the second surface 3215. For example, the fifth positioning protrusion 3263 can be located on a side of the fifth positioning groove 3262 away from the fourth positioning protrusion 3261. The outer side surface of the fifth positioning protrusion 3263 can be connected to the inner wall of the fifth positioning groove 3262.

[0136] In some embodiments, the main body 321 of the dustproof member 32 can further be provided with a sixth positioning groove 3264. For example, the sixth positioning groove 3264 can be located on the third sub-main body 3213. The sixth positioning groove 3264 can be recessed from the first surface 3214 of the main body 321 in a direction towards the second surface 3215. For example, the sixth positioning groove 3264 can be located on a side of the fifth positioning protrusion 3263 away from the fourth positioning protrusion 3261. The sixth positioning groove 3264 can be a circular groove. The number of the sixth positioning groove 3264 can be one or more. When the number of the sixth positioning groove 3264 is more than one, at least two sixth positioning grooves 3264 are symmetrically distributed relative to the length extension direction of the main shaft body 31.

[0137] In some embodiments, the main body 321 of the dustproof member 32 can further be provided with a sixth positioning protrusion 3265. For example, the sixth positioning protrusion 3265 can be located on the third sub-main body 3213. The sixth positioning protrusion 3265 can be recessed from the second surface 3215 of the main body 321 in a direction away from the first surface 3214. For example, the sixth positioning protrusion 3265 can extend to the edge of the third sub-main body 3213.

[0138] In some embodiments, a portion of the inner surface of the main body 321 can be recessed in a direction towards the outer surface of the main body 321 to form a seventh positioning groove 3267a on the inner surface of the main body 321 and a seventh positioning protrusion 3267b on the outer surface of the main body 321. For example, the seventh positioning groove 3267a and the seventh positioning protrusion 3267b can be located on the first sub-main body 3211.

[0139] In some embodiments, a portion of the inner surface of the main body portion 321 can be recessed towards the outer surface of the main body portion 321 to form an eighth positioning recess 3268a on the inner surface of the main body portion 321 and an eighth positioning protrusion 3268b on the outer surface of the main body portion 321. Exemplarily, the eighth positioning recess 3268a and the eighth positioning protrusion 3268b can be located on the second sub-main body portion 3212. Exemplarily, the seventh positioning recess 3267a and the eighth positioning recess 3268a can be symmetrically distributed with respect to the length extension direction of the main shaft spindle 31. The seventh positioning protrusion 3267b and the eighth positioning protrusion 3268b are symmetrically distributed with respect to the length extension direction of the main shaft spindle 31.

[0140] In some embodiments, the first extension portion 322 can be fixedly connected to the first sub-main body portion 3211 and located on the side of the first sub-main body portion 3211 away from the third sub-main body portion 3213. Exemplarily, the first extension portion 322 can include a first segment 3221 and a second segment 3222. The second segment 3222 is connected to the first segment 3221. The first segment 3221 and the second segment 3222 can be arranged along the length extension direction of the main shaft spindle 31. Exemplarily, the first segment 3221 and the second segment 3222 of the first extension portion 322 are schematically distinguished by the dashed lines in FIGS. 8A and 8B.

[0141] Exemplarily, the first segment 3221 can be connected to the main body portion 321. For example, the first segment 3221 can be connected to the first sub-main body portion 3211 of the main body portion 321. Exemplarily, along the length extension direction of the main shaft spindle 31, the first segment 3221 of the first extension portion 322 and the main body portion 321 can be located on the same side of the second segment 3222 of the first extension portion 322. That is, the second segment 3222 of the first extension portion 322 can be located on the side of the first segment 3221 of the first extension portion 322 and the main body portion 321.

[0142] In some embodiments, the second extension portion 323 can be fixedly connected to the second sub-main body portion 3212 and located on the side of the second sub-main body portion 3212 away from the third sub-main body portion 3213. Exemplarily, the second extension portion 323 can include a third segment 3231 and a fourth segment 3232. The fourth segment 3232 is connected to the third segment 3231. The third segment 3231 and the fourth segment 3232 can be arranged along the length extension direction of the main shaft spindle 31 (i.e., the Y-axis direction). Exemplarily, the third segment 3231 and the fourth segment 3232 of the second extension portion 323 are schematically distinguished by the dashed lines in FIGS. 8A and 8B.

[0143] The third segment 3231 can be connected to the main body 321. For example, the third segment 3231 can be connected to the second sub-main body 3212 of the main body 321. In the length extension direction of the main shaft body 31 (i.e., the Y-axis direction), the third segment 3231 of the second extension 323 and the main body 321 can be located on the same side of the fourth segment 3232 of the second extension 323. That is, the fourth segment 3232 of the second extension 323 can be located on one side of the third segment 3231 of the second extension 323 and the main body 321.

[0144] For example, the first segment 3221 of the first extension 322 can be arranged opposite and spaced apart from the third segment 3231 of the second extension 323. The second segment 3222 of the first extension 322 can be arranged opposite and spaced apart from the fourth segment 3232 of the second extension 323.

[0145] In some embodiments, the dustproof piece 32 can be a flexible piece. That is, the main body 321, the first extension 322, and the second extension 323 can deform under force. In this way, the dustproof piece 32 is less likely to interfere with or wear against the main shaft body 311 and the back cover 312 of the main shaft body 31, the first shell 10, and the second shell 20 during the unfolding and folding of the electronic device 100. For example, the material of the dustproof piece 32 can include soft glue, silicone, or the like. It can be understood that the soft glue, silicone, or the like can better conform to the main shaft body 31, the first shell 10, and the second shell 20, so that the shape of the dustproof piece 32 can better match the shape of the gap between the main shaft body 31 and the first shell 10 and the second shell 20. For example, the width of the dustproof piece 32 at different positions in the gap can match the width of the gap at the positions, so that the dustproof piece 32 can better shield the gap between the main shaft body 31 and the first shell 10 and the second shell 20, and the dustproof effect is better. In this embodiment, the dustproof piece 32 can be an integrally formed structure. That is, the main body 321, the first extension 322, and the second extension 323 can be integrally formed, so that the preparation process of the dustproof piece 32 is relatively simple. For example, the dustproof piece 32 can be made by an injection molding process. The dustproof piece 32 can be formed by using the injection mold 50 shown in FIGS. 9A to 9C. FIG. 9A is a structural schematic view of the injection mold 50 for manufacturing the dustproof piece 32 in this embodiment, FIG. 9B is a partial structure exploded view of the injection mold 50 shown in FIG. 9A, and FIG. 9C is a partial structure exploded view of the injection mold 50 shown in FIG. 9A from another angle.

[0146] For example, the injection mold 50 can include a female mold 51 and a male mold 52. The female mold 51 can have a recess 511, and the surface of the male mold 52 can have a protrusion 521. The injection material is injected into the female mold 51, and the female mold 51 is pressed against the male mold 52. The injection material is shaped by the interaction between the protrusion 521 and the recess 511, and the dustproof member 32 is obtained after cooling.

[0147] In other embodiments, the dustproof member 32 can also be a separate part, which is not strictly limited in the present application.

[0148] Referring to FIG. 10, FIG. 10 is a schematic diagram of a partial cross-sectional structure of the main shaft 30A along A-A in some embodiments.

[0149] In some embodiments, part of the main shaft body 311 can be located in the mounting space 3120 of the back cover 312. The first face 3113 of the main shaft body 311 can be arranged towards the third face 3121a of the back cover 312. The second face 3114 of the main shaft body 311 can be arranged away from the fourth face 3121b of the back cover 312. For example, part of the end 3112 of the main shaft body 311 can be located in the avoiding gap 3126 of the back cover 312. The end 3112 of the main shaft body 311 can extend to the outside of the back cover 312 through the avoiding gap 3126.

[0150] In some embodiments, the main body 321 of the dustproof member 32 is fixedly connected to the main shaft body 31. For example, at least part of the main body 321 can be located between the main shaft body 311 and the back cover 312 of the main shaft body 31, and is fixedly connected to the main shaft body 311 and / or the back cover 312. For example, the main body 321 can be fixed to the back cover 312 by means of glue dispensing, and then the back cover 312 and the dustproof member 32 are assembled with the main shaft body 311. Alternatively, the main body 321 can be fixed to the main shaft body 311 by means of glue dispensing, and then the back cover 312 is assembled with the main shaft body 311 and the dustproof member 32. In this way, the assembly between the dustproof member 32 and the main shaft body 31 is facilitated.

[0151] It can be understood that the main body 321 can be entirely located between the main shaft body 311 and the back cover 312 of the main shaft body 31. The main body 321 can also be partially located between the main shaft body 311 and the back cover 312 of the main shaft body 31. For example, at least part of the main body 321 can be located between the first face 3113 of the main shaft body 311 and the third face 3121a of the back cover 312. In this way, the connection area between the dustproof member 32 and the main shaft body 311 and the back cover 312 is larger, and the connection stability is better.

[0152] Please refer to FIG. 10 and FIG. 11A, which is a schematic diagram of the partial structure of the spindle 30A shown in FIG. 3 in some embodiments, and FIG. 11B is a schematic diagram of the partial structure of the spindle 30A shown in FIG. 11A from another angle. For example, FIG. 11A and FIG. 11B mainly show the schematic diagram of the assembly of the spindle body 311 of the spindle body 31 and the dustproof member 32.

[0153] In some embodiments, at least part of the spindle body 311 can be located in the accommodation space 320 of the dustproof member 32. The inner surface of the main body part 321 can be towards the first inner surface of the spindle body 311. It can be understood that by setting the structure of the dustproof member 32, part of the spindle body 311 can be located in the accommodation space 320 of the dustproof member 32, that is, the dustproof member 32 can surround at least part of the spindle body 311, thereby facilitating the stability of the connection between the dustproof member 32 and the spindle body 311, and the dustproof member 32 is not easy to fall off.

[0154] In some embodiments, at least part of the inner surface of the main body part 321 has the same shape as at least part of the first inner surface of the spindle body 311. For example, the first surface 3214 of the main body part 321 can be towards the first surface 3113 of the spindle body 311. At least part of the first surface 3214 has the same shape as at least part of the first surface 3113 of the spindle body 311. It can be understood that the main body part 321 of the dustproof member 32 can be shaped according to the first inner surface of the spindle body 311, facilitating the positioning and assembly of the dustproof member 32 and the spindle body 311. It can be understood that the main body part 321 can be that all of the first surface 3214 has the same shape as the first surface 3113 of the spindle body 311. The main body part 321 can also be that part of the first surface 3214 has the same shape as part of the first surface 3113 of the spindle body 311.

[0155] For example, the shape of the recessed area 3217 of the main body part 321 can be the same as the shape of the protruding part 3116 of the spindle body 311. At least part of the protruding part 3116 can be located in the recessed area 3217. In this way, the positioning effect when the dustproof member 32 and the spindle body 311 are assembled is good. The assembly between the dustproof member 32 and the spindle body 311 is more convenient.

[0156] For example, the shape of the fourth positioning protrusion 3261 of the main body part 321 can be the same as the shape of the first positioning groove 313 of the spindle body 311. At least part of the fourth positioning protrusion 3261 can be located in the first positioning groove 313. In this way, the positioning effect when the dustproof member 32 and the spindle body 311 are assembled is good. The assembly between the dustproof member 32 and the spindle body 311 is more convenient.

[0157] For example, the fifth positioning groove 3262 of the main body 321 can be arranged opposite to the second positioning groove 314. The shape of the fifth positioning groove 3262 can be the same as that of the second positioning groove 314 of the main shaft body 311. The groove bottom wall of the fifth positioning groove 3262 can cover the first through hole 315, so as to seal the first through hole 315, thereby preventing dust and sand outside the main shaft 30A and the folding mechanism 30 from entering the inside of the main shaft 30A through the first through hole 315.

[0158] For example, the shape of the sixth positioning groove 3264 of the main body 321 can be the same as that of the first positioning protrusion 317 of the main shaft body 311. At least part of the first positioning protrusion 317 can be located in the sixth positioning groove 3264. In this way, the positioning effect of the dustproof piece 32 when assembled with the main shaft body 311 is better. The assembly between the dustproof piece 32 and the main shaft body 311 is more convenient.

[0159] For example, the shape of the fifth positioning protrusion 3263 of the main body 321 can be the same as that of the third positioning groove 316 of the main shaft body 311. At least part of the fifth positioning protrusion 3263 can be located in the third positioning groove 316. In this way, the positioning effect of the dustproof piece 32 when assembled with the main shaft body 311 is better. The assembly between the dustproof piece 32 and the main shaft body 311 is more convenient.

[0160] In some embodiments, at least part of the first surface 3214 of the main body 321 can be attached to the first surface 3113 of the main shaft body 311. In this way, on the one hand, the gap between the main body 321 and the main shaft body 311 can be eliminated, so as to prevent dust, sand and the like from entering the inside of the main shaft 30A from the gap between the main body 321 and the main shaft body 311, thereby affecting the reliability of the main shaft 30A and the folding mechanism 30. On the other hand, the main body 321 and the main shaft body 311 can be closely attached, thereby improving the connection stability between the main body 321 and the main shaft body 311. It can be understood that the main body 321 can be that all the first surface 3214 is attached to the first surface 3113 of the main shaft body 311. The main body 321 can also be that part of the first surface 3214 is attached to the first surface 3113 of the main shaft body 311.

[0161] For example, the inner surface of the recessed area 3217 of the main body 321 can be attached to the surface of the protruding part 3116 of the main shaft body 311. The surface of the fourth positioning protrusion 3261 of the main body 321 can be attached to the groove wall of the first positioning groove 313 of the main shaft body 311. The groove wall of the sixth positioning groove 3264 of the main body 321 can be attached to the surface of the first positioning protrusion 317 of the main shaft body 311. The surface of the fifth positioning protrusion 3263 of the main body 321 can be attached to the groove wall of the third positioning groove 316 of the main shaft body 311.

[0162] Please refer to FIG. 11A and FIG. 11B, FIG. 11B is a structural schematic diagram of the partial structure of the main shaft 30A shown in FIG. 11A at another angle.

[0163] In some embodiments, the shape of the seventh positioning groove 3267a of the main body 321 can be the same as the shape of the second positioning protrusion 318 of the main shaft body 311. At least part of the second positioning protrusion 318 can be located in the seventh positioning groove 3267a. In this way, the positioning effect when the dustproof piece 32 is assembled with the main shaft body 311 is better. The assembly between the dustproof piece 32 and the main shaft body 311 is more convenient. Similarly, the shape of the eighth positioning groove 3268a (see FIG. 8B) of the main body 321 can be the same as the shape of the third positioning protrusion 319 of the main shaft body 311. At least part of the third positioning protrusion 319 can be located in the eighth positioning groove 3268a. In this way, the positioning effect when the dustproof piece 32 is assembled with the main shaft body 311 is better. The assembly between the dustproof piece 32 and the main shaft body 311 is more convenient.

[0164] For example, the groove wall of the seventh positioning groove 3267a of the main body 321 can be in contact with the surface of the second positioning protrusion 318 of the main shaft body 311. The groove wall of the eighth positioning groove 3268a (see FIG. 8B) of the main body 321 can be in contact with the surface of the third positioning protrusion 319 of the main shaft body 311.

[0165] In some embodiments, the first extension 322 can be located on one side of the circumferential side surface 3115 of the main shaft body 311. At least part of the first extension 322 towards the side surface of the main shaft body 311 can be in contact with at least part of the circumferential side surface 3115 of the shaft portion 3111 of the main shaft body 311. It can be understood that the first extension 322 can be arranged in contact with the main shaft body 311 to eliminate the gap between the first extension 322 and the main shaft body 311, so as to prevent dust, sand and the like from entering the inside of the main shaft 30A from the gap between the first extension 322 and the main shaft body 311, affecting the reliability of the main shaft 30A and the folding mechanism 30.

[0166] In some embodiments, the second extension 323 can be located on the other side of the circumferential side surface 3115 of the main shaft body 311. At least part of the second extension 323 towards the side surface of the main shaft body 311 can be in contact with at least part of the circumferential side surface 3115 of the shaft portion 3111 of the main shaft body 311. It can be understood that the second extension 323 can be arranged in contact with the main shaft body 311 to eliminate the gap between the second extension 323 and the main shaft body 311, so as to prevent dust, sand and the like from entering the inside of the main shaft 30A from the gap between the second extension 323 and the main shaft body 311, affecting the reliability of the main shaft 30A and the folding mechanism 30.

[0167] Please refer to FIG. 10, FIG. 11A and FIG. 12, which is a schematic diagram of the partial structure of the main shaft 30A shown in FIG. 3 in some embodiments. For example, FIG. 12 mainly shows a schematic diagram of the assembly structure of the back cover 312 of the main shaft body 31 and the dustproof member 32.

[0168] In some embodiments, the main body part 321 of the dustproof member 32 can be located in the mounting space 3120 of the back cover 312. The outer surface of the main body part 321 can face the second inner surface of the back cover 312. It can be understood that the back cover 312 can surround at least part of the dustproof member 32, which is conducive to improving the connection stability between the dustproof member 32 and the back cover 312, and the dustproof member 32 is not easy to fall off.

[0169] In some embodiments, the shape of at least part of the outer surface of the main body part 321 is the same as the shape of at least part of the second inner surface of the back cover 312. For example, the second surface 3215 of the main body part 321 can face the third surface 3121a of the back cover 312. The shape of at least part of the second surface 3215 is the same as the shape of at least part of the third surface 3121a of the back cover 312. It can be understood that the main body part 321 of the dustproof member 32 can be shaped according to the second inner surface of the back cover 312, which is convenient for positioning and assembling the dustproof member 32 and the back cover 312. It can be understood that the main body part 321 can be the shape of the entire second surface 3215 which is the same as the shape of the third surface 3121a of the back cover 312. The main body part 321 can also be the shape of part of the second surface 3215 which is the same as the shape of part of the third surface 3121a of the back cover 312.

[0170] For example, the shape of the sixth positioning protrusion 3265 of the main body part 321 can be the same as the shape of the fourth positioning groove 3123 of the back cover 312. At least part of the sixth positioning protrusion 3265 can be located in the fourth positioning groove 3123. In this way, the positioning effect when the dustproof member 32 and the back cover 312 are assembled is better. The assembly between the dustproof member 32 and the back cover 312 is more convenient.

[0171] In some embodiments, the second surface 3215 of the main body part 321 can be attached to the third surface 3121a of the back cover 312. In this way, on the one hand, the gap between the main body part 321 and the back cover 312 can be eliminated, so as to avoid dust, sand and the like from entering the inside of the main shaft 30A from the gap between the main body part 321 and the back cover 312, which affects the reliability of the main shaft 30A and the folding mechanism 30. On the other hand, the main body part 321 and the back cover 312 can be closely attached, thereby improving the connection stability between the main body part 321 and the back cover 312. It can be understood that the main body part 321 can be the second surface 3215 which is attached to the third surface 3121a of the back cover 312. The main body part 321 can also be part of the second surface 3215 which is attached to the third surface 3121a of the back cover 312.

[0172] For example, the shape of the sixth positioning protrusion 3265 of the main body 321 can be the same as the shape of a portion of the fourth positioning recess 3123 of the back cover 312. The portion of the sixth positioning protrusion 3265 can be located in the fourth positioning recess 3123. In this way, the positioning effect of the dustproof piece 32 when assembled with the main shaft body 311 is better. The assembly between the dustproof piece 32 and the main shaft body 311 is more convenient.

[0173] In some embodiments, the shape of the seventh positioning protrusion 3267b of the main body 321 can be the same as the shape of the first avoiding groove 3124 of the back cover 312. At least a portion of the seventh positioning protrusion 3267b can be located in the first avoiding groove 3124 (see FIG. 7). In this way, the positioning effect of the dustproof piece 32 when assembled with the back cover 312 is better. The assembly between the dustproof piece 32 and the back cover 312 is more convenient. For example, the surface of the seventh positioning protrusion 3267b of the main body 321 can be in close contact with the surface of the first avoiding groove 3124 of the back cover 312.

[0174] In some embodiments, the shape of the eighth positioning protrusion 3268b of the main body 321 can be the same as the shape of the second avoiding groove 3125 of the back cover 312. At least a portion of the eighth positioning protrusion 3268b can be located in the second avoiding groove 3125. In this way, the positioning effect of the dustproof piece 32 when assembled with the back cover 312 is better. The assembly between the dustproof piece 32 and the back cover 312 is more convenient. For example, the surface of the eighth positioning protrusion 3268b of the main body 321 can be in close contact with the surface of the second avoiding groove 3125 of the back cover 312.

[0175] FIG. 13 is a structural schematic diagram of the main shaft 30A shown in FIG. 3 in some embodiments.

[0176] In some embodiments, the first extension 322 can extend to one side of the main shaft body 31. It can be understood that the first extension 322 can extend to one side of the main shaft body 31 in a direction away from the main shaft body 31. For example, the first segment 3221 of the first extension 322 can extend to one side of the main shaft body 31 along the X-axis direction (i.e., the direction perpendicular to the length extension direction of the main shaft body 31). The second segment 3222 of the first extension 322 can extend to one side of the main shaft body 31 along the Y-axis direction (i.e., the length extension direction of the main shaft body 31). In this way, the first extension 322 of the dustproof piece 32 can cover the gap between the main shaft body 31 and the first housing 10 in at least two directions, and the dustproof effect is better.

[0177] For example, the first extension 322 can be located on the side of the back cover 312 facing the main shaft body 311 and on the side of the first outer surface of the main shaft body 311. The first extension 322 can extend away from the main shaft body 311 relative to the main shaft body 311.

[0178] In some embodiments, the second extension 323 can extend away from the main shaft body 311 relative to the other side of the main shaft body 311. It can be understood that the second extension 323 can extend to the side of the main shaft body 311 away from the main shaft body 311 relative to the main shaft body 311. For example, the third section 3231 of the second extension 323 can extend to the side of the main shaft body 311 along the X-axis direction (i.e., the direction perpendicular to the length extension direction of the main shaft body 311). The fourth section 3232 of the first extension 322 can extend to the side of the main shaft body 311 along the Y-axis direction (i.e., the direction of the length extension direction of the main shaft body 311).

[0179] For example, the second extension 323 can be located on the side of the back cover 312 facing the main shaft body 311 and on the side of the first outer surface of the main shaft body 311. The second extension 323 can extend away from the main shaft body 311 relative to the main shaft body 311.

[0180] Referring to FIGS. 14 to 16, FIG. 14 is a structural schematic diagram of part of the structure of the electronic device 100 in some embodiments from another angle, FIG. 15 is a partial cross-sectional structural schematic diagram of the electronic device 100 in some embodiments along the B-B section, and FIG. 16 is a partial cross-sectional structural schematic diagram of the electronic device 100 in some embodiments along the C-C section. For example, FIG. 14 mainly shows part of the structure of the electronic device 100 in FIG. 2 within the dashed line frame. The first extension 322 and the second extension 323 are schematically divided by the dashed line in FIG. 15.

[0181] In some embodiments, at least part of the main shaft body 311 can be exposed relative to the first shell 10 and the second shell 20 when the electronic device 100 is in the closed state. It can be understood that the main shaft body 311 can be entirely exposed relative to the first shell 10 and the second shell 20. The main shaft body 311 can also be partially exposed relative to the first shell 10 and the second shell 20.

[0182] For example, the main shaft body 311 of the main shaft 30A can be located inside the first housing 10 and the second housing 20, and the back cover 312 of the main shaft 30A can be exposed relative to the first housing 10 and the second housing 20. The first extending portion 322 of the dustproof member 32 can extend towards the side close to the first housing 10 relative to the main shaft body 31, and cover the gap between the main shaft body 31 and the first housing 10. At this time, at least part of the first extending portion 322 can be located between the main shaft body 31 and the first housing 10. In this way, dust, sand and the like outside the electronic device 100 are less likely to enter the inside of the electronic device 100 from the gap between the main shaft body 31 and the first housing 10, and affect the reliability of the electronic device 100.

[0183] In some embodiments, at least part of the dustproof member 32 can cover the gap between the main shaft body 31 and the first housing 10 when the electronic device 100 is in the closed state. It can be understood that the dustproof member 32 can partially cover the gap between the main shaft body 31 and the first housing 10. The dustproof member 32 can also completely cover the gap between the main shaft body 31 and the first housing 10. For example, along the arrangement direction of the first housing 10 and the second housing 20, that is, along the Z-axis direction, at least part of the first section 3221 of the first extending portion 322 can be located between the first housing 10 and the main shaft body 31. Along the length extension direction of the main shaft body 31, that is, along the Y-axis direction, at least part of the second section 3222 of the first extending portion 322 can be located between the first housing 10 and the main shaft body 31.

[0184] It can be understood that, in the direction perpendicular to the length extension direction of the main shaft body 31, the first section 3221 of the first extending portion 322 can cover the gap between the main shaft body 31 and the first housing 10; in the direction parallel to the length extension direction of the main shaft body 31, the second section 3222 of the first extending portion 322 can cover the gap between the main shaft body 31 and the first housing 10. In this way, the dustproof effect of the main shaft 30A and the folding mechanism 30 is better.

[0185] For example, the first housing 10 can include a first inner surface 11 and a first outer surface 12 arranged oppositely. When the electronic device 100 is in the closed state, the first inner surface 11 of the first housing 10 can face the main shaft body 31. At this time, the first extending portion 322 can be located between the circumferential side surface 3115 of the main shaft body 311 and the first inner surface 11 of the first housing 10. The first extending portion 322 can cover the gap between the circumferential side surface 3115 of the main shaft body 311 and the first inner surface 11 of the first housing 10.

[0186] In some embodiments, the first extension 322 can be in contact with the first inner surface 11 of the first housing 10. In this way, the first extension 322 can completely cover the gap between the main shaft body 31 and the first housing 10, so that the dustproof effect of the main shaft 30A and the folding mechanism 30 can be further improved. As shown in FIG. 15, the first section 3221 of the first extension 322 can be in contact with the first inner surface 11 of the first housing 10. As shown in FIG. 16, the second section 3222 of the first extension 322 can be in contact with the first inner surface 11 of the first housing 10.

[0187] In some embodiments, the second extension 323 of the dustproof member 32 can extend towards the side close to the second housing 20 relative to the main shaft body 31, and cover the gap between the main shaft body 31 and the second housing 20. At this time, part of the structure of the second extension 323 can be located between the main shaft body 31 and the second housing 20. In this way, when the electronic device 100 is in the closed state, the area of the gap of the electronic device 100 can be further reduced. Dust, sand and the like outside the electronic device 100 are not easy to enter the inside of the electronic device 100 from the gap between the main shaft body 31 and the second housing 20, thereby affecting the reliability of the electronic device 100.

[0188] For example, along the arrangement direction of the first housing 10 and the second housing 20, that is, along the Z-axis direction, at least part of the third section 3231 of the second extension 323 can be located between the second housing 20 and the main shaft body 31. Along the length extension direction of the main shaft body 31, that is, along the Y-axis direction, at least part of the fourth section 3232 of the second extension 323 can be located between the second housing 20 and the main shaft body 31.

[0189] It can be understood that, in the direction perpendicular to the length extension direction of the main shaft body 31, the third section 3231 of the second extension 323 can cover the gap between the main shaft body 31 and the second housing 20; in the direction parallel to the length extension direction of the main shaft body 31, the fourth section 3232 of the second extension 323 can cover the gap between the main shaft body 31 and the second housing 20. In this way, the second extension 323 of the dustproof member 32 can cover the gap between the main shaft body 31 and the second housing 20 in at least two directions, and the dustproof effect is better.

[0190] For example, the second housing 20 can include a second inner surface 21 and a second outer surface 22 arranged oppositely. When the electronic device 100 is in the closed state, the second inner surface 21 of the second housing 20 can face the main shaft body 31. At this time, the second extension 323 can be located between the circumferential side surface 3115 of the main shaft body 311 and the second inner surface 21 of the second housing 20. The second extension 323 can cover the gap between the circumferential side surface 3115 of the main shaft body 311 and the second inner surface 21 of the second housing 20.

[0191] In some embodiments, the second extension 323 can be in contact with the second inner surface 21 of the second housing 20. In this way, the second extension 323 can completely cover the gap between the main shaft body 31 and the second housing 20, so that the dustproof effect of the main shaft 30A and the folding mechanism 30 can be further improved. As shown in FIG. 15, the third section 3231 of the second extension 323 can be in contact with the second inner surface 21 of the second housing 20. The fourth section 3232 (see FIG. 8A) of the second extension 323 can be in contact with the second inner surface 21 of the second housing 20.

[0192] It can be understood that, in the length extension direction of the main shaft body 31 (i.e., the Y-axis direction), the main shaft body 31 can include a first end portion 31a and a second end portion 31b arranged oppositely (see FIG. 2). It can be understood that, at the positions of the first end portion 31a and the second end portion 31b, the gap between the main shaft body 31 and the first housing 10 and the second housing 20 is larger, and the sand dust invasion phenomenon is more serious, which needs to be protected. Therefore, in some embodiments, the dustproof member 32 of the main shaft 30A can be fixed to the first end portion 31a or the second end portion 31b of the main shaft body 31 to improve the dustproof effect of the first end portion 31a or the second end portion 31b. The above embodiments mainly introduce the case that the dustproof member 32 of the main shaft 30A is fixed to the first end portion 31a of the main shaft body 31.

[0193] In other embodiments, the number of dustproof members 32 can be at least two, at least one dustproof member 32 is fixed to the first end portion 31a of the main shaft body 31, and at least one dustproof member 32 is fixed to the second end portion 31b of the main shaft body 31. In this way, the dustproof effect of the first end portion 31a and the second end portion 31b can be improved, so that the dustproof effect of the electronic device 100 is better. In other embodiments, the dustproof member 32 can also be fixed to the first end portion 31a, the second end portion 31b and the structure between the first end portion 31a and the second end portion 31b of the main shaft body 31, which is not strictly limited in the present application.

[0194] Please refer to FIG. 17, which is a partial cross-sectional structure schematic diagram of the electronic device 100 shown in FIG. 14 in the open state.

[0195] In some embodiments, when the electronic device 100 is in the unfolded state, the first housing 10 and the second housing 20 can cover the folding mechanism 30. The first inner surface 11 of the first housing 10 and the second inner surface 21 of the second housing 20 are in the same direction, which can be towards the flexible screen 40. At this time, the gap between the main shaft body 31 and the first housing 10 and the second housing 20 is small, and dust, sand particles and the like are not easy to enter the gap between the main shaft body 31 and the first housing 10 and the second housing 20 and enter the inside of the electronic device 100.

[0196] When the electronic device 100 is in the unfolded state, the dustproof member 32 can be located inside the first housing 10 and the second housing 20. For example, the main body part 321 of the dustproof member 32 can be located between the first housing 10 and the second housing 20 and the flexible screen 40. The first extension part 322 of the dustproof member 32 can be located between the first housing 10 and the flexible screen 40. The second extension part 323 can be located between the second housing 20 and the flexible screen 40. It can be understood that in the embodiments of the present application, the dustproof member 32 can be located inside the first housing 10 and the second housing 20, and the dustproof member 32 can be covered by the first housing 10 and the second housing 20, which can be used to protect the dustproof member 32 and help to prolong the service life of the dustproof member 32. In addition, during the conversion of the electronic device 100 between the closed state and the unfolded state, the dustproof member 32 can not move with the first housing 10 and the second housing 20. At this time, the dustproof member 32 is not easy to fall off due to the interference between the dustproof member 32 and other components of the electronic device 100. In addition, during the conversion of the electronic device 100 between the closed state and the unfolded state, the dustproof member 32 does not bend with the movement of the first housing 10 and the second housing 20, and the dustproof member 32 is not easy to be damaged due to fatigue caused by bending, and has a long service life. In addition, the dustproof member 32 will not be affected by the blocking effect of the gap due to the decrease of the rebound ability caused by too many bending times.

[0197] Please refer to FIG. 18 and FIG. 19, FIG. 18 is a structural schematic diagram of the dustproof member 32 in another embodiment, and FIG. 19 is a structural schematic diagram of the dustproof member 32 in another embodiment. The embodiments shown in FIG. 18 and FIG. 19 can include most of the technical content of the previous embodiments, and the differences between the two will be mainly described below. Most of the same scheme content of the two will not be described again. It can be understood that the structure of the dustproof member 32 in the present embodiment is similar to that of the dustproof member 32 shown in FIG. 8A.

[0198] In the present embodiment, the main body part 321 of the dustproof member 32 can include a first part 321a, a second part 321b and a third part 321c. The third part 321c is connected between the first part 321a and the second part 321b. The first part 321a is connected to the first extension part 322 of the dustproof member 32. The second part 321b is connected to the second extension part 323 of the dustproof member 32.

[0199] For example, a part of the first portion 321a can constitute a first sub-body portion 3211 of the dustproof member 32 (see FIG. 8A); a part of the second portion 321b can constitute a second sub-body portion 3212 of the dustproof member 32 (see FIG. 8A); and the other part of the first portion 321a, the other part of the second portion 321b, and the third portion 321c can collectively constitute a third sub-body portion 3213 of the dustproof member 32 (see FIG. 8A). In other embodiments, the first portion 321a can also constitute the first sub-body portion 3211 of the dustproof member 32; the second portion 321b can also constitute the second sub-body portion 3212 of the dustproof member 32; and the third portion 321c can also constitute the third sub-body portion 3213 of the dustproof member 32.

[0200] For example, the body portion 321 can be provided with a first groove 3211a and a second groove 3211b. The first groove 3211a and the second groove 3211b can be recessed from the second surface 3215 of the body portion 321 to the first surface 3214. The first groove 3211a can be located at the first portion 321a of the body portion 321, and the second groove 3211b can be located at the second portion 321b of the body portion 321.

[0201] For example, the body portion 321 can also be provided with a first protrusion 3212a and a second protrusion 3212b. The first protrusion 3212a can be protruded from the bottom wall of the first groove 3211a, and the second protrusion 3212b can be protruded from the bottom wall of the second groove 3211b.

[0202] For example, the third portion 321c can include a fifth surface 3211c and a sixth surface 3212c arranged oppositely. The fifth surface 3211c can be part of the first surface 3214 of the body portion 321, and the sixth surface 3212c can be part of the second surface 3215 of the body portion 321. The third portion 321c can be provided with a first through hole 3213c and a second through hole 3214c arranged at intervals, and the first through hole 3213c and the second through hole 3214c can respectively penetrate the fifth surface 3211c and the sixth surface 3212c of the third portion 321c.

[0203] In this embodiment, the third portion 321c of the body portion 321 can be embedded in the first portion 321a and the second portion 321b. In this way, on the one hand, the connection stability between the third portion 321c and the first portion 321a and the second portion 321b can be improved, and on the other hand, the integrity of the dustproof member 32 can be improved, which is convenient for subsequent assembly of the dustproof member 32.

[0204] For example, the partial structure of the third portion 321c can be located in the first recess 3211a, and the partial structure can be located in the second recess 3211b. At least part of the first protrusion 3212a of the first portion 321a can be located in the first through hole 3213c, and at least part of the second protrusion 3212b of the second portion 321b can be located in the second through hole 3214c.

[0205] For example, the dustproof member 32 can be made by using an insert injection molding process. It can be understood that the insert injection molding refers to an injection molding process in which a pre-prepared insert of other materials (such as metal) is placed in the mold, and the plastic and the insert are combined and solidified in the mold to form an integrated product. For example, in the present embodiment, the third portion 321c of the main body portion 321 can be pre-formed by a punching process, and then the third portion 321c is fixed in the mold at a proper position, and then the first portion 321a of the main body portion 321, the second portion 321b of the main body portion 321, the first extension portion 322, and the second extension portion 323 are made by using an injection molding process.

[0206] For example, the main body portion 321 can further be provided with a recessed area 327. The recessed area 327 can be recessed from the first surface 3214 to the second surface 3215 of the main body portion 321. For example, the recessed area 327 can be located in the third portion 321c. At this time, the recessed area 327 can be recessed from the fifth surface 3211c to the sixth surface 3212c. For example, the recessed area 327 can be in communication with the fifth positioning recess 3262 and the sixth positioning recess 3264.

[0207] For example, the main body portion 321 can not include the fourth positioning protrusion 3261 (see FIG. 8B). It can be understood that the third sub-main body portion 3213 of the present embodiment can not include the fourth positioning protrusion 3261 of the embodiment shown in FIG. 8B. Therefore, the third sub-main body portion 3213 of the present embodiment can not include the partial structure at the position of the fourth positioning protrusion 3261, so that the size of the third sub-main body portion 3213 of the main body portion 321 can be reduced. It can be understood that by reducing the size of the third sub-main body portion 3213, the main body portion 321 can avoid some structural members of the main shaft body 31.

[0208] In this embodiment, the first portion 321a and the second portion 321b are flexible portions. The first portion 321a and the second portion 321b can be deformed after being subjected to force. In this way, the electronic device 100 in the process of unfolding and folding, the first portion 321a and the second portion 321b are not easy to interfere, wear between the main shaft body 311 and the back cover 312 of the main shaft body 31, the first shell 10 and the second shell 20. For example, the material of the first portion 321a and the second portion 321b can include silicone, soft glue and the like. It can be understood that the soft glue, silicone and the like can better profile the main shaft body 31, the first shell 10 and the second shell 20, so that the shape of the dustproof piece 32 can better match the shape of the gap between the main shaft body 31 and the first shell 10 and the second shell 20, for example, the width of the dustproof piece 32 at different positions in the gap can match the width of the gap at the position, so that the dustproof piece 32 can better shield the gap between the main shaft body 31 and the first shell 10 and the second shell 20, and the dustproof effect is better.

[0209] For example, the material of the third portion 321c can be a metal material, such as carbon steel, stainless steel, iron, aluminum, copper and other metal materials that can be welded. At this time, the third portion 321c can be welded to the back cover 312. It can be understood that the third portion 321c can be fixed to the back cover 312 in advance to form a whole, and then the back cover 312 and the dustproof piece 32 can be assembled with the main shaft body 311. Compared with the way of fixing the dustproof piece 32 to the back cover 312 or the main shaft body 311 by glue dispensing, the third portion 321c of the present embodiment is fixed to the back cover 312 by welding, which can not need to be pressure maintained, so that the assembly between the dustproof piece 32 and the back cover 312 is more convenient and fast, and the production efficiency is higher. Moreover, the third portion 321c is fixed to the back cover 312 by welding, so that the connection between the dustproof piece 32 and the back cover 312 is more firm, and the dustproof piece 32 is not easy to fall off. In addition, when the third portion 321c adopts steel, iron and other materials, it can have greater rigidity and is not easy to deform. The dustproof piece 32 can be positioned by providing some positioning structures, such as positioning columns or positioning holes, on the third portion 321c, so as to facilitate the positioning between the dustproof piece 32 and the main shaft body 311 and the back cover 312, thereby improving the positioning accuracy of the dustproof piece 32 during assembly, and the positioning effect of the dustproof piece 32 is better.

[0210] Please refer to FIGS. 18-20, and FIG. 20 is a partial cross-sectional structure schematic view of the main shaft 30A shown in FIG. 3 along D-D in some embodiments. For example, the main shaft 30A shown in FIG. 20 can include the dustproof piece 32 shown in FIG. 18.

[0211] In some embodiments, at least part of the third portion 321c of the main body 321 can be located between the main shaft body 311 and the back cover 312, and fixedly connected to the back cover 312. For example, the third portion 321c can be located between the first face 3113 of the main shaft body 311 and the third face 3121a of the back cover 312. The fifth face 3211c of the third portion 321c can face the first face 3113 of the main shaft body 311. At this time, the recessed area 327 of the main body 321 can face the first face 3113 of the main shaft body 311, for avoiding part of the structure on the main shaft body 311.

[0212] For example, at least part of the fifth face 3211c of the third portion 321c can have the same shape as at least part of the first face 3113 of the main shaft body 311. For example, at least part of at least one of the fifth positioning groove 3262, the sixth positioning groove 3264 and the fifth positioning protrusion 3263 can be located in the third portion 321c. In this way, the positioning effect of the dustproof member 32 and the main shaft body 311 when assembled is better. The assembly between the dustproof member 32 and the main shaft body 311 is more convenient.

[0213] For example, the sixth face 3212c of the third portion 321c can face the third face 3121a of the back cover 312. At least part of the sixth face 3212c of the third portion 321c can have the same shape as at least part of the third face 3121a of the back cover 312. In this way, the positioning effect of the dustproof member 32 and the back cover 312 when assembled is better. The assembly between the dustproof member 32 and the back cover 312 is more convenient.

[0214] Please refer to FIG. 21, which is a structural schematic diagram of the dustproof member 32 in another embodiment shown in FIG. 5. The embodiment shown in FIG. 20 can include most of the technical content of the previous embodiment, and the following mainly describes the difference between the two, and most of the scheme content of the two is not described again. It can be understood that the structure of the dustproof member 32 in the present embodiment is similar to that of the dustproof member 32 shown in FIG. 8A.

[0215] In the present embodiment, the main body 321 of the dustproof member 32 can include a fourth portion 321d and a fifth portion 321e. The fifth portion 321e is fixed to the fourth portion 321d. The fourth portion 321d is connected to the first extension 322 and the second extension 323 of the dustproof member 32. For example, part of the fourth portion 321d can constitute the first sub-main body 3211 of the dustproof member 32 (please refer to FIG. 8A); part of the fourth portion 321d can constitute the second sub-main body 3212 of the dustproof member 32 (please refer to FIG. 8A); part of the fourth portion 321d and the fifth portion 321e can jointly constitute the third sub-main body 3213 of the dustproof member 32 (please refer to FIG. 8A).

[0216] In other embodiments, a portion of the fourth portion 321d can constitute the first sub-body portion 3211 of the dustproof member 32, and another portion can constitute the second sub-body portion 3212 of the dustproof member 32; the fifth portion 321e can constitute the third sub-body portion 3213 of the dustproof member 32.

[0217] In the present embodiment, the fifth portion 321e can be embedded in the fourth portion 321d. In this way, on the one hand, the connection stability between the fifth portion 321e and the fourth portion 321d can be improved, and on the other hand, the overall performance of the dustproof member 32 can be improved, which is convenient for subsequent assembly of the dustproof member 32.

[0218] For example, the body portion 321 can be provided with a third groove 3211d. The third groove 3211d can be recessed from the second surface 3215 of the body portion 321 to the first surface 3214. The third groove 3211d can be located in the fourth portion 321d of the body portion 321. At least part of the fifth portion 321e can be located in the third groove 3211d.

[0219] In the present embodiment, the fourth portion 321d is a flexible portion. In this way, during the unfolding and folding of the electronic device 100, the fourth portion 321d is less likely to interfere with or wear the main shaft body 311 and the back cover 312 of the main shaft body 31, the first shell 10 and the second shell 20. The fourth portion 321d can deform under stress. The material of the fourth portion 321d can include silicone, soft glue, etc. It can be understood that the soft glue and silicone can better conform to the main shaft body 31, the first shell 10 and the second shell 20, so that the shape of the dustproof member 32 can better match the shape of the gap between the main shaft body 31 and the first shell 10 and the second shell 20. For example, the width of the dustproof member 32 at different positions in the gap can match the width of the gap at the positions, so that the dustproof member 32 can better shield the gap between the main shaft body 31 and the first shell 10 and the second shell 20, and the dustproof effect is better.

[0220] Exemplarily, the material of the fifth portion 321e can be a metal material, for example, carbon steel, stainless steel, iron, aluminum, copper, or other metal material that can be welded. In this case, the fifth portion 321e can be welded to the back cover. It can be understood that the fifth portion 321e can be previously fixed to the back cover 312 to form an integral whole, and then the back cover 312 and the dustproof member 32 can be assembled with the main shaft body 311 together. Compared with the mode that the dustproof member 32 is fixed to the back cover 312 or the main shaft body 311 by means of glue dispensing, the fifth portion 321e of the present embodiment is fixed to the back cover 312 by means of welding, so that the pressure maintaining operation can be omitted, the assembly between the dustproof member 32 and the back cover 312 is relatively convenient and fast, and the production efficiency is relatively high. In addition, the connection between the dustproof member 32 and the back cover 312 is relatively firm, and the dustproof member 32 is not prone to falling off. In addition, when the fifth portion 321e is made of steel, iron or other material, the rigidity can be relatively large, and the deformation is not prone to occur. The dustproof member 32 can be provided with some positioning structures, for example, positioning columns or positioning holes, on the third portion 321c, so as to facilitate the positioning between the dustproof member 32 and the main shaft body 311 and the back cover 312, thereby improving the positional accuracy during the assembly of the dustproof member 32, and the positioning effect of the dustproof member 32 is relatively good.

[0221] Please refer to FIGS. 22-24. FIG. 22 is a schematic diagram of a partial cross-sectional structure of the electronic device 100 in another embodiment. FIG. 23 is a schematic diagram of a partial structure of the electronic device 100 in some embodiments. FIG. 24 is a schematic diagram of a partial cross-sectional structure of a partial structure of the electronic device 100 along E-E in FIG. 22. Exemplarily, FIG. 22 mainly shows a cross-sectional schematic diagram of the electronic device 100 in FIG. 2 from another angle. FIG. 23 mainly shows the first shell 10, the second shell 20, and the dustproof member 32. The embodiments shown in FIGS. 22-24 can include most of the technical content of the previous embodiments, and the differences between the two will be mainly described below. Most of the scheme content that is the same between the two will not be described again.

[0222] In the present embodiment, the electronic device 100 can include the first shell 10, the second shell 20, the folding mechanism 30, and the dustproof member 32. The structure and arrangement of the first shell 10 and the second shell 20 in the present embodiment are the same as or similar to those in any of the previous embodiments. The structure of the main shaft 30A in the present embodiment can refer to the description of the structure of the main shaft body 31 in any of the previous embodiments.

[0223] The folding mechanism 30 can include a main shaft 30A and a connecting assembly (not shown in the figure). The structure and arrangement of the folding mechanism 30 in the embodiment are substantially the same as those of the folding mechanism 30 in any of the above embodiments, except that the main shaft 30A of the folding mechanism 30 in the embodiment can not include the dustproof member 32. It can be understood that the structure and arrangement of the main shaft 30A in the embodiment are the same as or similar to those of the main shaft body 31 in any of the above embodiments, and the structure of the main shaft 30A in the embodiment can refer to the related description of the structure of the main shaft body 31 in any of the above embodiments. In the embodiment, the dustproof member 32 can be fixed to the first housing 10. When the electronic device 100 is in the closed state, at least part of the dustproof member 32 can cover the gap between the main shaft 30A and the first housing 10. It can be understood that the dustproof member 32 can partially cover the gap between the main shaft 30A and the first housing 10. The dustproof member 32 can also completely cover the gap between the main shaft 30A and the first housing 10.

[0224] It can be understood that in a conventional electronic device, in order to facilitate the relative opening and closing of the first housing and the second housing, a gap is usually left between the first housing, the second housing, and the folding mechanism. When the first housing and the second housing are relatively closed, there is a large gap between the folding mechanism and the first housing and the second housing. Dust, sand, and the like outside the electronic device can easily enter the interior of the electronic device from the gap, affecting the reliability of the electronic device.

[0225] Therefore, in the embodiments of the present application, by providing the dustproof member 32 and fixing the dustproof member 32 to the first housing 10, at least part of the dustproof member 32 can cover the gap between the main shaft 30A and the first housing 10 when the electronic device 100 is in the closed state. In this way, dust, sand, and the like outside the electronic device 100 are not easy to enter the interior of the electronic device 100 from the gap between the main shaft 30A and the first housing 10, thereby affecting the reliability of the electronic device 100.

[0226] For example, a portion of the dustproof member 32 can be fixed to the first inner surface 11 of the first housing 10, and another portion can be fixed to the second inner surface 21 of the second housing 20. During the conversion of the electronic device 100 between the closed state and the unfolded state, the dustproof member 32 can move relative to the main shaft 30A following the movement of the first housing 10 and the second housing 20. When the electronic device 100 is in the closed state, the dustproof member 32 can fill the gap between the first housing 10, the second housing 20 and the main shaft 30A, so as to further prevent dust, sand and the like from entering the interior of the electronic device 100 through the gap between the first housing 10 or the second housing 20 and the main shaft 31. For example, when the electronic device 100 is in the closed state, a portion of the dustproof member 32 can abut between the back cover 312 and the first housing 10 to fill the gap between the back cover 312 and the first housing 10; a portion of the dustproof member 32 can abut between the back cover 312 and the second housing 20 to fill the gap between the back cover 312 and the second housing 20. For example, when the electronic device 100 is in the closed state, a portion of the dustproof member 32 can abut between the main shaft 31 and the first housing 10 to fill the gap between the main shaft 31 and the first housing 10; a portion of the dustproof member 32 can abut between the main shaft 31 and the second housing 20 to fill the gap between the main shaft 31 and the second housing 20.

[0227] For example, the dustproof member 32 can be a flexible member. In this way, during the unfolding and folding of the electronic device 100, the dustproof member 32 is not easy to interfere with or wear the main shaft 30A or other components of the electronic device 100. For example, the dustproof member 32 can be foam, soft glue with low modulus, etc. It can be understood that when the material of the dustproof member 32 is soft glue with low modulus, the surface of the dustproof member 32 can be coated with lubricating grease to reduce friction, thereby facilitating the unfolding and folding of the first housing 10 and the second housing 20.

[0228] In the present embodiment, the material of the dustproof member 32 can be foam. The preparation process of foam is mature, and the semi-finished product of foam can be directly cut and shaped, so that the foam matching the shape of the gap can be cut according to the shape of the gap to be shielded. In this way, the processing of the dustproof member 32 is relatively simple, and the cutting time is relatively short, which is beneficial to shorten the production time of the dustproof member 32 and improve the production efficiency.

[0229] It can be understood that in some examples, the dustproof member 32 can include at least two foams, at least one of which can be fixed to the first inner surface 11 of the first housing 10 to fill the gap between the first housing 10 and the main shaft 30A; at least one of which can be fixed to the second inner surface 21 of the second housing 20 to fill the gap between the second housing 20 and the main shaft 30A.

[0230] It can be understood that all the above drawings are exemplary illustrations of the present application, and do not represent the actual size of the product. The size ratio relationship between the components in the drawings is not limited to the actual product of the present application.

[0231] The above merely provides part of the embodiments of the present application, and the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An electronic device (100), characterized by The electronic device (100) comprises a first shell (10), a second shell (20) and a folding mechanism (30) connected between the first shell (10) and the second shell (20), and the first shell (10) and the second shell (20) can be relatively closed or flattened through the movement of the folding mechanism (30); The folding mechanism (30) comprises a main shaft (30A) located between the first shell (10) and the second shell (20) and a connecting assembly (30B) connecting the main shaft (30A), the first shell (10) and the second shell (20); The main shaft (30A) comprises a main shaft shaft body (31) and a dustproof piece (32) fixed to the main shaft shaft body (31), and when the electronic device (100) is in a closed state, the first shell (10) and the second shell (20) are arranged oppositely, at least part of the main shaft shaft body (31) is exposed relative to the first shell (10) and the second shell (20), and at least part of the dustproof piece (32) covers the gap between the main shaft shaft body (31) and the first shell (10). Alternatively, the electronic device (100) further comprises a dustproof piece (32) fixed to the first shell (10), and when the electronic device (100) is in a closed state, the first shell (10) and the second shell (20) are arranged oppositely, and at least part of the dustproof piece (32) covers the gap between the main shaft (30A) and the first shell (10).

2. The electronic device (100) according to claim 1, characterized in that The dustproof piece (32) comprises a main body part (321) fixedly connected to the main shaft shaft body (31) and a first extension part (322) extending relative to one side of the main shaft shaft body (31), and when the electronic device (100) is in a closed state, the first extension part (322) covers the gap between the main shaft shaft body (31) and the first shell (10).

3. The electronic device (100) according to claim 2, characterized in that The dustproof piece (32) further comprises a second extension part (323) extending relative to one side of the main shaft shaft body (31), and when the electronic device (100) is in a closed state, the second extension part (323) covers the gap between the main shaft shaft body (31) and the second shell (20).

4. The electronic device (100) according to claim 3, characterized in that The first shell (10) comprises a first inner surface (11) facing the main shaft shaft body (31), and the second shell (20) comprises a second inner surface (21) facing the main shaft shaft body (31). The first extension part (322) is in contact with the first inner surface (11) of the first shell (10) when the electronic device (100) is in the closed state, and / or the second extension part (323) is in contact with the second inner surface (21) of the second shell (20).

5. The electronic device (100) according to any one of claims 2 to 4, characterized in that, The electronic device (100) further comprises a flexible screen (40) mounted to the first shell (10) and the second shell (20). When the electronic device (100) is in the unfolded state, the first shell (10) and the second shell (20) are located on the same side of the flexible screen (40), the first shell (10) and the second shell (20) cover the main shaft (30A), the main body part (321) is located between the first shell (10), the second shell (20) and the flexible screen (40), and the first extension part (322) is located between the first shell (10) and the flexible screen (40).

6. The electronic device (100) according to claim 3 or 4, characterized in that The main shaft body (31) comprises a main shaft body (311) and a back cover (312), the back cover (312) is fixedly connected to the main shaft body (311) and is oppositely arranged with the main shaft body (311), at least part of the main body part (321) is located between the main shaft body (311) and the back cover (312), and the main body part (321) is fixedly connected to the main shaft body (311) and / or the back cover (312); The first extension part (322) extends from one side of the main shaft body (311) and the back cover (312); The second extension part (323) extends from the other side of the main shaft body (311) and the back cover (312).

7. The electronic device (100) according to claim 6, characterized by The main shaft body (311) comprises a first face (3113) and a second face (3114) oppositely arranged, the back cover (312) comprises a third face (3121a) and a fourth face (3121b) oppositely arranged, the first face (3113) faces the third face (3121a), and at least part of the main body part (321) is located between the first face (3113) and the third face (3121a); The main body part (321) comprises a first surface (3214) and a second surface (3215) oppositely arranged, the first surface (3214) faces the first face (3113), at least part of the first surface (3214) has the same shape as at least part of the first face (3113), the second surface (3215) faces the third face (3121a), and at least part of the second surface (3215) has the same shape as at least part of the third face (3121a).

8. The electronic device (100) according to claim 7, characterized by At least part of the first surface (3214) is attached to the first face (3113), and at least part of the second surface (3215) is attached to the third face (3121a).

9. The electronic device (100) according to claim 7 or 8, characterized by The main body part (321) comprises a first sub-main body part (3211), a second sub-main body part (3212) and a third sub-main body part (3213), the third sub-main body part (3213) is connected between the first sub-main body part (3211) and the second sub-main body part (3212), the first extension part (322) is fixedly connected to the first sub-main body part (3211) and located on a side of the first sub-main body part (3211) away from the third sub-main body part (3213), and the second extension part (323) is fixedly connected to the second sub-main body part (3212) and located on a side of the second sub-main body part (3212) away from the third sub-main body part (3213); The first sub-main body part (3211) and the second sub-main body part (3212) are oppositely and spacedly arranged, and the first sub-main body part (3211), the second sub-main body part (3212) and the third sub-main body part (3213) jointly enclose a containing space (320), and part of the main shaft body (311) is located in the containing space (320); The main shaft body (311) further comprises a circumferential side surface (3115) connecting the first surface (3113) and the second surface (3114), when the electronic device (100) is in the closed state, the first extension part (322) is located between the circumferential side surface (3115) and the first shell (10), and the second extension part (323) is located between the circumferential side surface (3115) and the second shell (20).

10. The electronic device (100) according to claim 9, characterized by At least part of a side surface of the main shaft body (311) towards the first extension part (322) is attached to at least part of the circumferential side surface (3115); At least part of a side surface of the main shaft body (311) towards the second extension part (323) is attached to at least part of the circumferential side surface (3115).

11. The electronic device (100) according to any one of claims 2 to 4, characterized in that The first extension part (322) comprises a first segment (3221) and a second segment (3222), the second segment (3222) is connected to the first segment (3221), the first segment (3221) is connected to the main body part (321) and extends along the length direction of the main shaft body (31), and the first segment (3221) and the main body part (321) are located on the same side of the second segment (3222); When the electronic device (100) is in the closed state, at least part of the first segment (3221) is located between the first shell (10) and the main shaft body (31) along the arrangement direction of the first shell (10) and the second shell (20), and at least part of the second segment (3222) is located between the first shell (10) and the main shaft body (31) along the length direction of the main shaft body (31).

12. The electronic device (100) according to any one of claims 1 to 4, characterized in that The dustproof part (32) is a flexible part.

13. The electronic device (100) according to claim 12, characterized by The dustproof part (32) is fixed to the main shaft body (31), and the material of the dustproof part (32) is silica gel or soft glue. Or, the dustproof piece (32) is fixed to the first inner surface (11) of the first shell (10), and a material of the dustproof piece (32) is foam.

14. The electronic device (100) according to claim 6, characterized in that, The main body part (321) comprises a first part (321a), a second part (321b) and a third part (321c), the third part (321c) is connected between the first part (321a) and the second part (321b), the first part (321a) is connected with the first extension part (322), and the second part (321b) is connected with the second extension part (323). At least part of the third part (321c) is located between the main shaft body (311) and the back cover (312) and is fixedly connected with the back cover (312).

15. The electronic device (100) according to claim 14, characterized by The first part (321a), the second part (321b), the first extension part (322) and the second extension part (323) are flexible parts, a material of the third part (321c) is a metal material, and the third part (321c) is welded to the back cover (312).

16. The electronic device (100) according to claim 14 or 15, characterized by The main shaft body (311) comprises a first surface (3113) and a second surface (3114) arranged in a back-to-back mode, the back cover (312) comprises a third surface (3121a) and a fourth surface (3121b) arranged in a back-to-back mode, the first surface (3113) faces the third surface (3121a), and at least part of the third part (321c) is located between the first surface (3113) and the third surface (3121a). The third part (321c) comprises a fifth surface (3211c) and a sixth surface (3212c) arranged in a back-to-back mode, the fifth surface (3211c) faces the first surface (3113), at least part of the fifth surface (3211c) has the same shape as at least part of the first surface (3113), the sixth surface (3212c) faces the third surface (3121a), and at least part of the sixth surface (3212c) has the same shape as at least part of the third surface (3121a).

17. The electronic device (100) according to claim 14 or 15, characterized by The third part (321c) is embedded in the first part (321a) and the second part (321b).

18. The electronic device (100) according to claim 6, characterized in that The main body part (321) comprises a fourth part (321d) and a fifth part (321e), the fourth part (321d) is connected with the first extension part (322) and the second extension part (323), and the fifth part (321e) is fixedly connected between the fourth part (321d) and the back cover (312).

19. The electronic device (100) according to claim 18, characterized by The fourth part (321d), the first extension part (322) and the second extension part (323) are flexible parts, a material of the fifth part (321e) is a metal material, and the fifth part (321e) is welded to the back cover (312).

20. The electronic device (100) according to claim 18 or 19, characterized by The fifth part (321e) is embedded in the fourth part (321d).

21. The electronic device (100) according to any one of claims 1 to 4, characterized in that The main shaft shaft body (31) comprises a first end portion (31a) and a second end portion (31b) arranged oppositely in the length extension direction of the main shaft shaft body (31), and the dustproof piece (32) is fixed to the first end portion (31a) or the second end portion (31b); Or, the number of the dustproof pieces (32) is at least two, at least one of the dustproof pieces (32) is fixed to the first end portion (31a) of the main shaft shaft body (31), and at least one of the dustproof pieces (32) is fixed to the second end portion (31b) of the main shaft shaft body (31).

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