Shell assembly of electronic equipment and electronic equipment

Abstract

The utility model relates to the technical field of electronic equipment, and discloses a shell assembly of electronic equipment and the electronic equipment. The shell assembly can rotate relative to a rotating shaft assembly of the electronic equipment when installed on the electronic equipment, the shell assembly comprises a shell and a first protection part arranged on the shell, when the shell assembly is installed on the electronic equipment, a first gap is formed between the shell and the appearance face of the rotating shaft assembly, and the first protection part is located in the first gap; the first protection piece comprises a first part and a second part which are connected with each other, the first protection piece is connected with the shell through the first part, and in the process that the shell assembly rotates relative to the rotating shaft assembly, the second part can make contact with the appearance face and slide along the appearance face; wherein the first part is made of self-lubricating metal, and the second part is made of a lubricating material. Therefore, the quality consistency of the first protection part and the connection stability of the first protection part and the shell can be improved, the problem that the appearance surface of the rotating shaft assembly is scratched is solved, and the damping feeling in the opening and closing process of the electronic equipment is reduced.

Description

TECHNICAL FIELD

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

[0002] With the continuous development of electronic equipment, foldable display electronic equipment (for example, notebook computers, foldable mobile phones, etc.) generally includes a hinge assembly and two shells. Among them, the two shells are rotationally connected through the hinge assembly. Through the hinge assembly, the relative rotation of the two shells can be realized, so that the foldable display electronic equipment can realize the switching between the folded state and the flat state.

[0003] At present, during the relative rotation of the two shells, the appearance surface of the hinge assembly is generally contacted to reduce the gap, so as to ensure the rotation stability and dustproofness of the foldable display electronic equipment. However, with the increase of the number of rotations, the two shells will be scratched with the hinge assembly, thereby causing scratches on the appearance surface of the hinge assembly, which affects the product quality of the foldable electronic equipment. Therefore, how to improve the scratch problem on the appearance surface of the hinge assembly is a difficulty to be solved at present. CONTENT OF THE UTILITY MODEL

[0004] The shell assembly of the electronic equipment and the electronic equipment provided by the embodiments of the present application are used to improve the scratch problem on the appearance surface of the hinge assembly and reduce the damping feeling in the opening and closing process of the electronic equipment.

[0005] In a first aspect, the present application provides a shell assembly of an electronic equipment, which can rotate relative to a hinge assembly of the electronic equipment when installed on the electronic equipment. The shell assembly includes a shell and a first protective piece. When the shell assembly is installed on the electronic equipment, there is a first gap between the shell and the appearance surface of the hinge assembly of the electronic equipment. The first protective piece is arranged on the shell and located in the first gap when the shell assembly is installed on the electronic equipment. The first protective piece includes a first part and a second part connected to each other. The first protective piece is connected to the shell through the first part. During the rotation of the shell assembly relative to the hinge assembly, the second part can contact and slide along the appearance surface. The material of the first part is self-lubricating metal, and the material of the second part is lubricating material.

[0006] According to the above-mentioned embodiments, the self-lubricating metal has good forming effect, so as to improve the shape consistency of the first protective piece. In addition, the self-lubricating metal can be bonded with the shell, so as to enhance the connection stability of the first protective piece and the shell. In addition, the hardness of the self-lubricating metal and the lubricating material is small, so as to reduce the scratches on the appearance surface of the hinge assembly, and also reduce the damping feeling in the opening and closing process of the electronic equipment, so as to improve the user experience.

[0007] In some embodiments of the first aspect, the first protective member has a hardness value less than or equal to 15 HV.

[0008] In this way, since the hardness of the appearance surface is generally large (e.g., greater than 130 HV), the hardness of the appearance surface is much greater than the hardness of the first protective member, so that the first protective member almost does not scratch the appearance surface after the shell assembly is rotated relative to the shaft assembly multiple times and at a high frequency, thereby prolonging the service life of the electronic device. Moreover, the first protective member and the appearance surface have small friction therebetween, and the sliding process of the first protective member along the appearance surface is more stable and smooth, thereby providing a more stable opening and closing damping feeling for the user and making the user experience more smooth during opening and closing of the electronic device.

[0009] In some embodiments of the first aspect, the self-lubricating metal has a hardness value in a range of 5 HV to 15 HV, and the lubricating material has a hardness value less than or equal to the hardness value of the self-lubricating metal.

[0010] In some embodiments of the first aspect, the second portion of the first protective member is made of a self-lubricating metal, or the second portion of the first protective member is a lubricating coating.

[0011] It can be understood that the hardness value of the lubricating material can be equal to the hardness value of the self-lubricating metal, in which case the materials of the first portion and the second portion can be the same, for example, the materials of the first portion and the second portion are both self-lubricating metals, in which case the first portion and the second portion can be integrally formed to improve the stability of the first protective member. In some embodiments, the dry friction coefficient of the lubricating material can also be less than the dry friction coefficient of the self-lubricating metal, so that the use of the lubricating coating to contact the appearance surface of the shaft assembly can further reduce friction.

[0012] In some embodiments of the first aspect, the self-lubricating metal includes one or more of a tin-based Babbitt alloy, a lead-based self-lubricating alloy, and a copper-based self-lubricating alloy.

[0013] In some embodiments of the first aspect, the material of the lubricating coating is one or more of polytetrafluoroethylene (PTFE), molybdenum disulfide (MoS2), and diamond-like coating (DLC), and in some other embodiments, the material of the lubricating coating can also be other fluorine-containing materials.

[0014] In some embodiments of the first aspect, the shell includes a groove, and when the shell assembly is installed on the electronic device, the opening of the groove faces the appearance surface, and the first portion is inserted into the groove and fixedly connected with the groove wall.

[0015] In some embodiments of the first aspect, the groove is formed on the first surface of the shell, and the first portion is fixedly connected with the first surface.

[0016] Thus, by fixing the first part to the first surface, the positioning operation during the assembly of the first protective piece to the shell is facilitated, and the bonding area of the first protective piece and the shell is further increased, thereby further improving the stability of the connection between the first protective piece and the shell.

[0017] In some embodiments of the first aspect, the first part is in an L-shaped structure, the vertical edge of the first part is inserted into the groove, and the horizontal edge of the first part is bonded to the first surface.

[0018] Thus, the positioning operation during the assembly of the first protective piece to the shell is facilitated, and the bonding area of the first protective piece and the shell is increased, thereby improving the stability of the connection between the first protective piece and the shell. Moreover, compared with the way of injection molding the protective piece on the shell, the first protective piece is formed by stamping first, thereby reducing the cost of the equipment and mold required for injection molding, and the first protective piece is connected to the shell by bonding, thereby eliminating the need to prepare the first protective piece on the shell, and making the first protective piece easier to install.

[0019] In some embodiments of the first aspect, the first part is in a U-shaped structure, the shell comprises a first groove and a second groove arranged at intervals, both side edges of the first part are inserted into the first groove and the second groove, and the bottom edge of the first part is bonded to the first surface.

[0020] Thus, the positioning operation during the assembly of the first protective piece to the shell is further facilitated, and the bonding area of the first protective piece and the shell is further increased, thereby further improving the stability of the connection between the first protective piece and the shell.

[0021] In some embodiments of the first aspect, the first part is in a T-shaped structure, the vertical edge of the first part is inserted into the groove, and the horizontal edge of the first part is bonded to the first surface.

[0022] In some embodiments of the first aspect, the shell assembly is capable of rotating relative to the shaft assembly of the electronic device about the first axis when installed on the electronic device; the number of the first protective pieces is a plurality, and the plurality of first protective pieces are arranged at intervals along the extension direction of the first axis.

[0023] In a second aspect, the present application provides an electronic device comprising the shell assembly and the shaft assembly according to any one of the first aspect, and the shell assembly is capable of rotating relative to the shaft assembly; wherein the shell and the appearance surface of the shaft assembly have a first gap therebetween; the first protective piece is located in the first gap, and the second part of the first protective piece is in contact with the appearance surface and is capable of sliding along the appearance surface during the rotation of the shell assembly relative to the shaft assembly.

[0024] In some embodiments of the second aspect, the second part of the first protective member is pressed against the rotating shaft assembly during the rotation of the housing assembly relative to the rotating shaft assembly.

[0025] The beneficial effects of the second aspect are described in the relevant description of various embodiments of the first aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the present application, the drawings used in the embodiments will be briefly introduced as follows.

[0027] FIG. 1A According to some embodiments of the present application, a cross-sectional structure schematic diagram of a first foldable display electronic device is shown;

[0028] FIG. 1B According to some embodiments of the present application, a cross-sectional structure schematic diagram of a second foldable display electronic device is shown;

[0029] FIG. 2 According to some embodiments of the present application, a cross-sectional structure schematic diagram of a third foldable display electronic device is shown;

[0030] FIG. 3A According to some embodiments of the present application, a cross-sectional structure schematic diagram of a fourth foldable display electronic device is shown;

[0031] FIG. 3B According to some embodiments of the present application, a cross-sectional structure schematic diagram of a fifth foldable display electronic device is shown;

[0032] FIG. 4A According to some embodiments of the present application, a cross-sectional structure schematic diagram of a sixth foldable display electronic device is shown;

[0033] FIG. 4B According to some embodiments of the present application, a cross-sectional structure schematic diagram of a seventh foldable display electronic device is shown; FIG. 4A a perspective structure schematic diagram of a first protective member in the seventh foldable display electronic device is shown;

[0034] FIG. 4C According to some embodiments of the present application, a cross-sectional structure schematic diagram of a seventh foldable display electronic device is shown; FIG. 4B a perspective structure schematic diagram of the protective member from another angle in the seventh foldable display electronic device is shown;

[0035] FIG. 4D According to some embodiments of the present application, a cross-sectional structure schematic diagram of a seventh foldable display electronic device is shown; FIG. 4A a perspective structure schematic diagram of a second protective member in the seventh foldable display electronic device is shown;

[0036] FIG. 4E According to some embodiments of the present application, a cross-sectional structure schematic diagram of a seventh foldable display electronic device is shown; FIG. 4D a perspective structure schematic diagram of the protective member from another angle in the seventh foldable display electronic device is shown;

[0037] FIG. 5A According to some embodiments of the present application, a cross-sectional structural schematic diagram of a seventh foldable display electronic device is shown.

[0038] FIG. 5B According to some embodiments of the present application, a cross-sectional structural schematic diagram of a seventh foldable display electronic device is shown. FIG. 5A A perspective structural schematic diagram of a first guard is shown in FIG. 1.

[0039] FIG. 5C According to some embodiments of the present application, a cross-sectional structural schematic diagram of a seventh foldable display electronic device is shown. FIG. 5B A perspective structural schematic diagram of the guard from another angle is shown in FIG. 2.

[0040] FIG. 5D According to some embodiments of the present application, a cross-sectional structural schematic diagram of a seventh foldable display electronic device is shown. FIG. 5A A perspective structural schematic diagram of a second guard is shown in FIG. 3.

[0041] FIG. 5E According to some embodiments of the present application, a cross-sectional structural schematic diagram of a seventh foldable display electronic device is shown. FIG. 5D A perspective structural schematic diagram of the guard from another angle is shown in FIG. 4.

[0042] FIG. 6A According to some embodiments of the present application, a cross-sectional structural schematic diagram of a seventh foldable display electronic device is shown.

[0043] FIG. 6B According to some embodiments of the present application, a cross-sectional structural schematic diagram of a seventh foldable display electronic device is shown. FIG. 6A A perspective structural schematic diagram of a first guard is shown in FIG. 5.

[0044] FIG. 6C According to some embodiments of the present application, a cross-sectional structural schematic diagram of a seventh foldable display electronic device is shown. FIG. 6B A perspective structural schematic diagram of the guard from another angle is shown in FIG. 6.

[0045] FIG. 6D According to some embodiments of the present application, a cross-sectional structural schematic diagram of a seventh foldable display electronic device is shown. FIG. 6A A perspective structural schematic diagram of a second guard is shown in FIG. 7.

[0046] FIG. 6E According to some embodiments of the present application, a cross-sectional structural schematic diagram of a seventh foldable display electronic device is shown. FIG. 6D A perspective structural schematic diagram of the guard from another angle is shown in FIG. 8. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and embodiments.

[0048] The illustrative embodiments of the present application include, but are not limited to, a housing assembly of an electronic device, an electronic device.

[0049] It can be understood that the electronic device provided in the embodiments of the present application can be a foldable display electronic device, which includes but is not limited to a foldable mobile phone, a tablet personal computer, an electronic book reader, a laptop computer, a personal digital assistant (PDA), a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, and the like.

[0050] For ease of description, a state in which the foldable display electronic device is folded is defined as a folded state, and a state in which the foldable display electronic device is unfolded is defined as an unfolded state. In addition, the appearance surface of the hinge assembly described herein is a surface exposed by the hinge assembly when the foldable display electronic device is in the folded state.

[0051] FIG. 1A and FIG. 1B Two exemplary structures of the foldable display electronic device 1 in the embodiments of the present application are shown, wherein, FIG. 1A is a cross-sectional view of the foldable display electronic device 1 in the unfolded state, FIG. 1B is a cross-sectional view of the foldable display electronic device 1 in the folded state.

[0052] For ease of subsequent description, before introducing the specific structure of the foldable display electronic device 1, the X-axis direction, the Y-axis direction and the Z-axis direction corresponding to the foldable display electronic device 1 are defined in combination with FIG. 1A FIG. 1. FIG. 1A As shown in FIG. 1, the X-axis direction is the length direction of the foldable display electronic device 1 in the unfolded state, for example, in the default use direction of the user, the direction from the lower edge to the upper edge of the foldable display electronic device 1 is the positive direction of the X-axis. The Y-axis direction is the width direction of the foldable display electronic device 1 in the unfolded state, for example, in the default use direction of the user, the direction from the right edge to the left edge of the foldable display electronic device 1 (i.e., the direction pointing into the paper in FIG. 1) is the positive direction of the Y-axis; the Z-axis direction is the thickness direction of the foldable display electronic device 1 in the unfolded state, for example, in the default use direction of the user, the direction from the back to the front of the foldable display electronic device 1 is the positive direction of the Z-axis. In some embodiments of the present application, the X-axis direction, the Y-axis direction and the Z-axis direction are perpendicular to each other. FIG. 1A

[0053] ​It should be noted that the orientation terms such as "upper", "lower", "left", "right", "top surface", "bottom surface", "upper side" and the like in the present document are exemplary orientations shown in the drawings corresponding to the embodiments, and do not indicate or imply that the components referred to must have a particular orientation, which can be changed accordingly according to actual use, and cannot be understood as a limitation on the present application. Moreover, it can be understood that when the viewing angle of the drawings changes (for example, the drawings are rotated by any angle for reference), the orientation terms also change accordingly.

[0054] It can be understood that the mutual perpendicularity in the present application is not absolute perpendicularity, and approximate perpendicularity (for example, the included angle between two structural features is 89°) caused by processing errors and assembly errors is also within the range of mutual perpendicularity in the present application. The mutual parallelism in the present application is not absolute parallelism, and approximate parallelism (for example, the included angle between two structural features is 1°) caused by processing errors and assembly errors is also within the range of mutual parallelism in the present application. The definition of mutual parallelism and mutual perpendicularity hereinafter will not be repeated.

[0055] Reference FIG. 1A and FIG. 1B The foldable display electronic device 1 includes a housing assembly 10, a housing assembly 20, and a hinge assembly 30, the front surface of the housing assembly 10, the front surface of the housing assembly 20, and the front surface of the hinge assembly 30 can be provided with a screen, the hinge assembly 30 includes an appearance piece 31 and a hinge 32, the hinge 32 is arranged on the side of the appearance piece 31 close to the front surface of the foldable display electronic device 1, and the side of the appearance piece 31 close to the back surface of the foldable display electronic device 1 has an appearance surface S1. Wherein, when the foldable display electronic device 1 is in the unfolded state, along the X-axis direction, the housing assembly 10 and the housing assembly 20 are arranged on the two sides of the hinge assembly 30 respectively, and the housing assembly 10 and the housing assembly 20 can be connected with the hinge assembly 30 respectively to realize the rotational connection of the housing assembly 10 and the housing assembly 20. The housing assembly 10 and the housing assembly 20 can be relatively rotated through the hinge assembly 30, so that the foldable display electronic device 1 can be switched between the unfolded state shown in FIG. 1A and the folded state shown in FIG. 1B .

[0056] Continuing to refer to FIG. 1AWhen the foldable display electronic device 1 is in a flattened state, the included angle between the housing assembly 10 and the housing assembly 20 can be, for example, in the range of 178° to 182°. For example, this included angle can be 180°, meaning the flattened angle of the foldable display electronic device 1 is 180°. At this time, the housing assembly 10 and the housing assembly 20 are arranged side-by-side along the X-axis, and the foldable display electronic device 1 is flattened in a similar "I" shape. The housing assembly 10 and the housing assembly 20 can jointly cover the outer surface S1 of the hinge assembly 30. It can be understood that in other embodiments, such as when the foldable display electronic device is a foldable phone, the screens on the front of the housing assembly 10, the front of the housing assembly 20, and the front of the hinge assembly 30 are flattened in a similar "I" shape, thereby enabling the foldable display electronic device 1 to perform full-screen display.

[0057] Continue to refer to FIG. 1B When the foldable display electronic device 1 is in a folded state, the included angle between the housing assembly 10 and the housing assembly 20 can be around 0°, for example, 0° to 2°. At this time, the housing assembly 10 and the housing assembly 20 are stacked, and the foldable display electronic device 1 is bent in a similar "U" shape, with the outer surface S1 of the hinge assembly 30 exposed to the outside of the foldable display electronic device 1.

[0058] It should be noted that the foldable display electronic device can also be in any state between the flattened state and the folded state as needed, that is, the included angle between the housing assembly 10 and the housing assembly 20 can be in the range of 0° to 180°.

[0059] The following is combined FIG. 2 This section details the specific structure of a foldable display electronic device 1 currently in use.

[0060] FIG. 2 Cross-sectional views of a foldable display electronic device 1 provided in some embodiments of this application are shown, wherein, FIG. 2 The structure shown can be FIG. 1A An example of the foldable display electronic device 1 shown.

[0061] Reference FIG. 2 In the foldable display electronic device 1, the housing assembly 10 includes a housing 100 and a protective member 110 disposed on the housing 100, and the housing assembly 20 includes a housing 200 and a protective member 210 disposed on the housing 200. The housing assemblies 10 and 20 are connected to the outer surface S1 via the protective members 110 and 210, thereby reducing friction between the housing assemblies 10 and 20 and the outer surface S1. Furthermore, since there is a gap G1 between the housing 100 and the outer surface S1, the protective members 110 and 210 are disposed within the gap G1 to seal the gap G1, thus providing dust protection.

[0062] In some embodiments, the material of the guards 110 and 210 is plastic. Since the surface energy of plastic is low, it means that the surface of the plastic structure is not easy to form strong combination with other materials (such as adhesives), so the guards 110 and 210 cannot be connected with the housings 100 and 200 by adhesion, but are generally prepared by injection molding process. The injection molding process is a process of heating thermoplastic to a molten state, then injecting it into a closed mold cavity by high pressure, and forming a plastic product with the required shape and size after cooling and solidification. However, the above injection molding process has many process steps, and the heating, cooling and other steps take a long time, resulting in a long production cycle of the guards 110 and 210, causing high production cost, which is not conducive to the high efficiency and mass production of the foldable display electronic device. In addition, the guards 110 and 210 made of plastic material have high hardness, which can scratch the appearance surface of the shaft assembly 30 during the relative rotation of the housing assemblies 10 and 20.

[0063] In other embodiments, the guards 110 and 210 are made of soft glue material, which is formed by curing after being glued on the housing. However, since the soft glue material generally has high fluidity and softness, it is difficult to control the size and shape during formation, and it is easy to deform after curing, which cannot guarantee the quality consistency between different guards and the connection stability with the housing, resulting in the problems of displacement or deformation of the guards 110 and 210 during the relative rotation of the housing assemblies 10 and 20.

[0064] Based on the above problems, the embodiments of the present application provide a housing assembly of an electronic device, which comprises a housing and a first guard provided on the housing. The first guard comprises a first part and a second part connected with each other. The first part is connected with the housing. During the relative rotation of the housing assembly and the shaft assembly, the second part is in contact with and slides along the appearance surface. The material of the first part is self-lubricating metal, and the material of the second part is lubricating material. Thus, the self-lubricating metal has good forming effect, so as to improve the shape consistency of the first guard. In addition, the self-lubricating metal can be bonded with the housing, so as to enhance the connection stability of the first guard and the housing. Furthermore, the hardness of the self-lubricating metal and the lubricating material is small, so as to reduce the scratching of the appearance surface of the shaft assembly and reduce the damping feeling during the opening and closing of the foldable display electronic device, thereby improving the user experience.

[0065] In order to make the above purposes, characteristics and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0066] In order to facilitate understanding, first, the following will be described in combination withFIG. 3A and FIG. 3B A detailed description is provided for one embodiment of the foldable display electronic device of this application.

[0067] FIG. 3A and FIG. 3B Two exemplary structures of the foldable display electronic device 1 in this application embodiment are shown, wherein, FIG. 3A This is a cross-sectional view of the foldable display electronic device 1 in its flattened state. FIG. 3B This is a cross-sectional view of the foldable display electronic device 1 in the folded state.

[0068] refer to FIG. 3A and FIG. 3B The foldable display electronic device 1 includes a housing assembly 10, a housing assembly 20, and a hinge assembly 30. The housing assembly 10 includes a housing 100 and a protective member 120 (as a first protective member) disposed on the housing 100. The housing assembly 20 includes a housing 200 and a protective member 220 (as a first protective member) disposed on the housing 200. The hinge assembly 30 includes an outer surface 31 and a hinge 32, and the outer surface 31 has an outer surface S1. It can be understood that the specific structures of the housing 100, housing 200, and hinge assembly 30 can be referred to the above description. FIG. 1A and FIG. 1B The relevant descriptions will not be repeated here.

[0069] Continue to refer to FIG. 3A In the foldable display electronic device 1, there is a gap G1 (as a first gap) between the housing 100 and the outer surface S1, the protective member 120 is located in the gap G1, the housing assembly 10 is able to rotate relative to the rotating shaft assembly 30, and during the rotation of the housing assembly 10 relative to the rotating shaft assembly 30, the protective member 120 is in contact with the outer surface S1 and can slide along the outer surface S1.

[0070] It should be noted that housing assembly 10 and housing assembly 20 have similar structures; that is, housing 100 and housing 200 have similar structures, and protective member 120 and protective member 220 have similar structures. Furthermore, housing assembly 10 and housing assembly 20 are symmetrically arranged with respect to the pivot assembly 30. Specifically, housing assembly 10 and housing assembly 20 are symmetrical about the YZ plane, where the midpoint of the pivot assembly 30 is located in the X-axis direction. Therefore, the specific structure of the housing assembly will be described below using housing assembly 10 as an example only. The description of housing assembly 20 can be referenced to that of housing assembly 10, and will not be repeated in the following embodiments.

[0071] The following is combined FIG. 4A , FIG. 4B and FIG. 4C Regarding the above FIG. 3A and FIG. 3B The first embodiment of the housing assembly 10 will be described in detail.

[0072] FIG. 4A Fig. 1 shows a cross-sectional structure schematic diagram of the foldable display electronic device 1 in some embodiments, which can also be a cross-sectional view parallel to the XZ plane; FIG. 4B Fig. 2 shows a perspective view of the first protective member 120 in some embodiments; FIG. 4A Fig. 3 shows a perspective view of the first protective member 120 in some embodiments; FIG. 4C Fig. 4 shows a perspective view of the first protective member 120 in some embodiments; FIG. 4B Fig. 5 shows a perspective view of the first protective member 120 in some embodiments.

[0073] Referring to Figs. 1 and 2, the housing assembly 10 includes a housing 100 and a protective member 120 arranged on the housing, the protective member 120 includes a first portion 120a and a second portion 120b connected to each other along the Z-axis direction. FIG. 4A Referring to Fig. 3, the first portion 120a and the second portion 120b can be separated by a cross section Sa parallel to the XY plane, wherein the protective member 120 is connected to the housing 100 through the first portion 120a, and the second portion 120b can be attached to the appearance surface S1 and slide along the appearance surface S1 during the rotation of the housing assembly 10 relative to the rotation shaft assembly 30. In some embodiments, the materials of the first portion 120a and the second portion 120b are self-lubricating metal. In some embodiments, the materials of the first portion 120a and the second portion 120b can be the same, in which case the protective member 120 can be a one-piece structure; in other embodiments, the materials of the first portion 120a and the second portion 120b can be different. FIG. 4B FIG. 4B In the above protective member 120, the first portion 120a and the second portion 120b are both made of self-lubricating metal material. Compared with soft rubber material, the self-lubricating metal material has good forming effect and excellent wear resistance and deformation resistance, thus being conducive to improving the quality consistency of the protective member 120 and thus improving the overall quality and rotation performance of the housing assembly 10. In addition, since the self-lubricating metal itself has lubricating ability, in the case where the second portion 120b is made of self-lubricating metal, the second portion 120b can automatically reduce friction and wear during the sliding along the appearance surface S1, thus being able to improve the scratching problem of the appearance surface S1 without the need to add other lubricants or lubricating structures between the protective member 120 and the appearance surface S1.

[0074] In some embodiments, the self-lubricating metal includes one or more of tin-based Babbitt alloy, lead-based self-lubricating alloy and copper-based self-lubricating alloy. For example, the materials of the first portion 120a and the second portion 120b of the protective member 120 can both be copper-based self-lubricating alloy. It should be noted that the specific material of the self-lubricating metal is not limited in the present application, and other materials can also be selected according to actual needs by those skilled in the art.

[0075] In some embodiments, the self-lubricating metal includes one or more of tin-based Babbitt alloy, lead-based self-lubricating alloy and copper-based self-lubricating alloy. For example, the materials of the first portion 120a and the second portion 120b of the protective member 120 can both be copper-based self-lubricating alloy. It should be noted that the specific material of the self-lubricating metal is not limited in the present application, and other materials can also be selected according to actual needs by those skilled in the art. ​

[0076] In some embodiments, the hardness value of the protective piece 120 is less than or equal to 15 HV, and the hardness of the first portion 120a and the second portion 120b of the protective piece 120 is less than or equal to 15 HV, and the hardness of the self-lubricating metal is less than or equal to 15 HV. Since the hardness of the appearance surface S1 is generally large (for example, greater than 130 HV), the hardness of the appearance surface S1 is much greater than the hardness of the protective piece 120, so that the protective piece 120 almost does not scratch the appearance surface S1 after the shell assembly 10 rotates relative to the shaft assembly 30 multiple times and at a high frequency, thereby prolonging the service life of the foldable display electronic device. Moreover, the small friction between the protective piece 120 and the appearance surface S1 also makes the sliding process of the protective piece 120 along the appearance surface S1 more smooth, thereby providing a more stable opening and closing damping feeling for the user, and making the user experience more smooth during the opening and closing of the foldable display electronic device.

[0077] In some embodiments, specifically, the hardness value of the self-lubricating metal is in the range of 5 HV-15 HV, that is, the hardness value of the first portion 120a is in the range of 5 HV-15 HV, and the hardness value of the second portion 120b is in the range of 5 HV-15 HV. For example, the hardness value of the self-lubricating metal can be 5 HV, 8 HV, 10 HV, 12 HV, 15 HV, etc. It should be noted that the application does not limit the specific value of the hardness value of the self-lubricating metal, and those skilled in the art can select the hardness value of the self-lubricating metal according to actual needs.

[0078] In some embodiments, continuing to refer to FIG. 4A and FIG. 4BThe first part 120a and the second part 120b of the protection piece 120 can be made of the same material, and the protection piece 120 can also be a one-piece structure. For example, the material of the protection piece 120 can be tin-based bismuth alloy. The one-piece structure means that the first part 120a and the second part 120b are manufactured by one forming process without a separate assembly process, so that the protection piece 120 has no weak connection inside and has high strength and rigidity. Since the self-lubricating metal material has high plasticity, the protection piece 120 can be formed by stamping, stretching, or the like under suitable temperature and pressure conditions, and can maintain the original shape after forming, avoiding the problem of poor consistency or deformation of soft rubber material forming. Therefore, the shape and size consistency of the protection piece 120 is good. For example, the protection piece 120 can be formed by stamping, so that it can be mass-produced under a high-precision mold, further ensuring the size consistency and shape stability of each protection piece 120.

[0079] The shape of the protection piece 120 in the present embodiment will be described below in combination with FIG. 4A 、 FIG. 4B and FIG. 4C .

[0080] In some embodiments, the housing 100 in FIG. 4A 、 FIG. 4B and FIG. 4C , FIG. 4A includes a groove 101 formed on a surface S2 (as a first surface) of the housing 100. When the housing assembly 10 is installed on the foldable display electronic device 1, the surface S2 of the housing 100 is arranged opposite to the appearance surface S1, the opening of the groove 101 faces the appearance surface S1, and the first part 120a of the protection piece 120 is fixedly connected to the surface S2 of the housing 100. Specifically, referring to FIG. 4C , the first part 120a of the protection piece 120 is L-shaped, and includes a vertical edge 1201 and a horizontal edge 1202. The vertical edge 1201 is inserted into the groove 101 of FIG. 4A and is fixedly connected (for example, can be bonded) to the groove wall of the groove 101, and the surface S3 of the horizontal edge 1202 is fixedly connected (for example, can be bonded) to the surface S2 of the housing 100. The second part 120b of the protection piece 120 is connected to the second edge 1202 of the L-shaped structure, and when the housing assembly 10 is installed on the foldable display electronic device 1 in FIG. 4A , the second part 120b is located in the gap G1 and between the second edge 1202 and the appearance surface S1, and also contacts the appearance surface S1.

[0081] Continuing to refer to FIG. 2 、 FIG. 4A ,FIG. 4B and FIG. 4C , FIG. 2 The guard 110 and the guard 210 are cuboids, and thus the connection stability of the guards and the shell is weak, which leads to the guards 110 and 210 to shake and deform during sliding along the appearance surface S1. Compared with FIG. 2 the first part 120a of the guard 120 in FIG. 4C is L-shaped, that is, has a vertical edge 1201 and a horizontal edge 1202 connected to each other, which facilitates the positioning operation during assembly of the guard 120 on the shell 100 and increases the bonding area of the guard 120 and the shell 100, thereby improving the connection stability of the guard 120 and the shell 100. Moreover, compared with the way of injection molding the guard on the shell, the guard 120 is first formed by stamping process, which reduces the cost of equipment and mold required for injection molding, and then the guard 120 is connected with the shell 100 by bonding, which does not need to prepare the guard 120 on the shell 100, so that the guard 120 is easier to install.

[0082] It should be noted that the included angle between the vertical edge 1201 and the horizontal edge 1202 can be 90°, or can also be other angles, for example, the included angle between the vertical edge 1201 and the horizontal edge 1202 can be any angle in 80°-100°. It should be noted that the present application does not make any limitation on the angle between the vertical edge 1201 and the horizontal edge 1202, and the angle between the vertical edge 1201 and the horizontal edge 1202 can also be other angles.

[0083] In some embodiments, the guard 120 and the shell 100 can be bonded by an adhesive, for example, the adhesive can include epoxy resin glue, polyurethane glue, and acrylic glue, etc. It should be noted that the present application does not make any limitation on the material of the adhesive, and the person skilled in the art can select the material of the adhesive according to actual needs.

[0084] In some embodiments, continuing to refer to FIG. 4A , FIG. 4B and FIG. 4CWhen the shell assembly 10 is installed on the foldable display electronic device 1, the second part 120b of the protective piece 120 and the appearance surface S1 of the rotating shaft assembly 30 can be pressed against each other, which can also be referred to as interference fit between the protective piece 120 and the rotating shaft assembly 30. The interference fit is a connection method, specifically, two components (for example, the protective piece 120 on the shell 100 and the rotating shaft assembly 30) need a certain force to complete the assembly, and a certain fastening force is maintained after the assembly is completed. In addition, during the opening and closing process of the foldable display electronic device 1 (that is, during the sliding process of the second part 120b along the appearance surface S1), the interference amount between the protective piece 120 and the appearance surface S1 remains unchanged. The interference amount refers to the initial overlap amount of two matching parts under the action of no external force, and the size of the interference amount determines the tightness of the match and the assembly difficulty. For example, before the shell assembly 10 and the rotating shaft assembly 30 are assembled, the difference between the preset distance between the surface S2 of the shell 100 and the appearance surface S1 and the size L1 of the part of the protective piece 120 to be arranged in the gap G1 along the Z-axis direction. The size L1 is the sum of the size of the first part 120a and the size of the second part 120b along the Z-axis direction. Therefore, maintaining the interference amount between the protective piece 120 and the rotating shaft assembly 30 during the opening and closing process of the foldable display electronic device 1 can ensure that the user feels smooth and consistent operating resistance when opening and closing the foldable display electronic device 1, thereby improving the user experience.

[0085] In some embodiments, specifically, the interference amount between the protective piece 120 and the appearance surface S1 can range from 0.05 mm to 0.2 mm. For example, the interference amount between the protective piece 120 and the appearance surface S1 can be 0.05 mm, 0.1 mm, 0.15 mm, or 0.2 mm, and the like. It should be noted that the application does not limit the value of the interference amount, and the value of the interference amount can be selected by the person skilled in the art according to the actual needs.

[0086] In some embodiments, continuing to refer to FIG. 4A When the shell assembly 10 is installed on the foldable display electronic device 1, the shell assembly 10 can rotate relative to the rotating shaft assembly 30 of the foldable display electronic device 1 about the axis L2 (as the first axis), which can be parallel to the Y-axis direction. The number of protective pieces 120 can be multiple, and the multiple protective pieces 120 are arranged in the extension direction of the axis L2, that is, the Y-axis direction. For example, the number of protective pieces 120 can be 3, 4, or 5, and the like. In some other embodiments, the number of protective pieces 120 can also be 1. It should be noted that the application does not limit the number of protective pieces 120, and the number of protective pieces 120 can be selected by the person skilled in the art according to the actual needs.

[0087] In addition, it should be noted that, asFIG. 4A In the foldable display electronic device 1 shown, the number of the guards 120 in the housing assembly 10 can be the same as the number of the guards 220 in the housing assembly 20, and the guards 120 and the guards 220 can be symmetrically arranged one by one to ensure the symmetry and balance of the housing assembly 10 and the housing assembly 20.

[0088] The second embodiment of the housing assembly of the present application will be described in detail below. FIG. 4D FIG. 4E FIG. 4D The second embodiment of the housing assembly of the present application will be described in detail below.

[0089] FIG. 4A A perspective structural schematic view of the second guard 120 in the foldable display electronic device 1 is shown; FIG. 4E A perspective structural schematic view of the second guard 120 in the foldable display electronic device 1 is shown; FIG. 4D A perspective structural schematic view of the second guard 120 in the foldable display electronic device 1 is shown; FIG. 4D A perspective structural schematic view of the second guard 120 in the foldable display electronic device 1 is shown. FIG. 4E FIG. 4B The difference between the guard 120 in FIG. 4C FIG. 4D and the guard 120 in FIG. 4E FIG. 4A is that: The second part 120b of the guard 120 in

[0090] FIG. 4D FIG. 4E FIG. 4D comprises a first part 120a and a second part 120b connected to each other, wherein the first part 120a is L-shaped and comprises vertical edges 1201 and 1202. When the housing assembly 10 is installed in the foldable display electronic device 1, the second part 120b of the guard 120 is located on the surface of the first part 120a facing the gap G1. Moreover, the first part 120a can be an integral structure (for example, formed by stamping process), and the second part 120b can be formed on the surface of the first part 120a facing the gap G1 by coating process or vacuum plating process. Since the hardness and friction coefficient of the second part 120b are smaller than those of the first part 120a, the connection between the second part 120b and the shaft assembly 30 can further reduce the friction between the guard 120 and the appearance surface S1. In addition, since the appearance surface S1 of the shaft assembly 30 is made of metal material, the second part 120b is set as a lubricating coating, which can also reduce the generation of metal powder debris caused by the mutual friction between metal parts, and further improve the rotation performance of the foldable display electronic device 1.

[0091] ​​​​​​​In some embodiments, the dry friction coefficient of the second portion 120b is less than the dry friction coefficient of the first portion 120a. Specifically, the dry friction coefficient of the second portion 120b is less than or equal to 0.05. Here, the dry friction coefficient refers to the friction coefficient between the second portion 120b and the appearance surface S1 without any lubricant. For example, the dry friction coefficient of the second portion 120b can be 0.05, 0.04, 0.03, or 0.02, and the like.

[0092] In some embodiments, the material of the lubricating coating is one or more of polytetrafluoroethylene (PTFE), molybdenum disulfide (MoS2), diamond-like coating (DLC), and the like. The material of the lubricating coating can also be other fluorine-containing materials.

[0093] It should be noted that, FIG. 4E and FIG. 4B the other structures and materials of the protective member 120 in FIG. 4C and FIG. 4D are similar to those of the protective member 120 in FIG. 4E and FIG. 4B , therefore, FIG. 4C and FIG. 5A the other relevant descriptions of the protective member 120 in FIG. 4C and FIG. 5A can refer to the relevant embodiments of the above FIG. 4C and FIG. 5A , and thus will not be repeated here.

[0094] The third embodiment of the shell assembly 10 of the present application will be described in detail below in combination with FIG. 5B , FIG. 5C and FIG. 5A .

[0095] FIG. 5B shows a cross-sectional structural schematic diagram of the foldable display electronic device 1 in some other embodiments, which can also be a cross-sectional view parallel to the XZ plane; FIG. 5A shows a perspective structural schematic diagram of the first protective member 120 in FIG. 5C ; FIG. 5B shows a perspective structural schematic diagram of the protective member 120 in FIG. 5A from another angle. FIG. 5B , FIG. 5C and FIG. 4A the shell assembly 10 in FIG. 5B , FIG. 5C and FIG. 4A is only different from the shell assembly 10 in FIG. 4B , FIG. 4C and FIG. 5A in that: FIG. 5B , FIG. 5C and FIG. 5AThe shell 100 in the shell assembly 10 comprises two grooves 101 (as a first groove) and 102 (as a second groove) which are spaced apart along the extension direction of the axis L2 (for example, the Y-axis direction) and are both formed on the surface S2 of the shell 100; and the first part 120a of the protection piece 120 is U-shaped, that is, has the side edge 1204, the bottom edge 1205 and the side edge 1206 connected in sequence. When the shell assembly 10 is installed on the foldable display electronic device 1, the side edge 1204 and the side edge 1206 are respectively inserted into the grooves 101 and 102, and the bottom edge 1205 is fixedly connected with the surface S2. Therefore, the contact area of the protection piece 120 and the shell 100 can be further increased, so as to further improve the connection stability of the protection piece 120 and the shell 100.

[0096] With reference to FIG. 5B , FIG. 5C and FIG. 4A , specifically, when the shell assembly 10 is installed on the foldable display electronic device 1, the openings of the grooves 101 and 102 are both directed to the appearance surface S1. In the first part 120a of the protection piece 120, the side edge 1204 is inserted into the groove 101 and fixedly connected (for example, can be bonded) with the groove wall of the groove 101, the surface S3 of the bottom edge 1205 is fixedly connected (for example, can be bonded) with the surface S2 of the shell 100, and the side edge 1206 is inserted into the groove 102 and fixedly connected (for example, can be bonded) with the groove wall of the groove 102.

[0097] In the above protection piece 120, since the first part 120a is U-shaped, the side edge 1204, the bottom edge 1205 and the side edge 1206 are all fixedly connected (for example, all bonded) with the shell 100, and the side edge 1204 and the side edge 1206 are respectively inserted into the grooves 101 and 102. Therefore, the positioning operation during the assembly of the protection piece 120 on the shell 100 is further facilitated, and the bonding area of the protection piece 120 and the shell 100 is further increased, so as to further improve the connection stability of the protection piece 120 and the shell 100.

[0098] In some embodiments, the included angles between side 1204 and bottom 1205, and between bottom 1205 and side 1206, can be 90°, or other angles; and the included angles between side 1204 and bottom 1205, and between bottom 1205 and side 1206, can be the same or different. For example, the included angle between side 1204 and bottom 1205 can be any angle between 80° and 100°, and the included angle between bottom 1205 and side 1206 can be any angle between 80° and 100°. It should be noted that this application does not impose any restrictions on the included angles between side 1204 and bottom 1205, or between bottom 1205 and side 1206; the included angles between side 1204 and bottom 1205, and between bottom 1205 and side 1206, can also be other angles.

[0099] It should be noted that, FIG. 4B , FIG. 4C and FIG. 5A Other structural and material properties are respectively with FIG. 5B , FIG. 5C and FIG. 4A Similar, therefore, FIG. 4B , FIG. 4C and FIG. 5A Other relevant descriptions can be found above. FIG. 5D , FIG. 5E and FIG. 5D The relevant embodiments will not be described in detail here.

[0100] The following is combined with FIG. 5A , FIG. 5E and FIG. 5D A fourth embodiment of the housing assembly of this application will be described in detail.

[0101] FIG. 5D It shows FIG. 5E A three-dimensional structural diagram of the second type of protective component 120; FIG. 5B It shows FIG. 5C A three-dimensional structural diagram of the middle protective component 120 from another angle. FIG. 5D and FIG. 5E Protective component 120 and FIG. 5D and FIG. 5E Compared to the 120 protective component, the only difference is: FIG. 4D and FIG. 4E The second part 120b of the protective element 120 is a lubricating coating to further reduce friction between the protective element 120 and the outer surface S1 of the shaft assembly.

[0102] It should be noted that, FIG. 5D and FIG. 5E Part 2, section 120b, details the lubricating coating. FIG. 4D andFIG. 4E The second part 120b of the lubricating coating in the second embodiment is similar to that in the first embodiment, and thus, FIG. 5D The related description of the lubricating coating in the second embodiment can be FIG. 5E The related embodiments in the second embodiment are not repeated here. In addition, it can be understood that FIG. 5B The other structures in the second embodiment are similar to those in the first embodiment, and thus, the related embodiments in the first embodiment can be referred to. FIG. 5C The related embodiments in the second embodiment are not repeated here. In addition, it can be understood that FIG. 5B The other structures in the second embodiment are similar to those in the first embodiment, and thus, the related embodiments in the first embodiment can be referred to. FIG. 5C The related embodiments in the second embodiment are not repeated here. In addition, it can be understood that FIG. 6A The other structures in the second embodiment are similar to those in the first embodiment, and thus, the related embodiments in the first embodiment can be referred to. FIG. 6B The related embodiments in the second embodiment are not repeated here. In addition, it can be understood that FIG. 6C The other structures in the second embodiment are similar to those in the first embodiment, and thus, the related embodiments in the first embodiment can be referred to. FIG. 6A The related embodiments in the second embodiment are not repeated here. In addition, it can be understood that

[0103] The fifth embodiment of the shell assembly 10 of the present application is described in detail below in combination with FIG. 6B , FIG. 6A and FIG. 6C .

[0104] FIG. 6B The cross-sectional structural schematic diagram of the foldable display electronic device 1 in some other embodiments is shown, which can also be a cross-sectional view parallel to the XZ plane; FIG. 6A The perspective structural schematic diagram of the first protective member 120 in the third embodiment is shown; FIG. 6B The perspective structural schematic diagram of the protective member 120 in the third embodiment from another angle is shown. FIG. 6C The shell assembly 10 in the third embodiment is similar to that in the first and second embodiments, and thus, the related embodiments in the first and second embodiments can be referred to. FIG. 4A The difference between the shell assembly 10 in the third embodiment and that in the first and second embodiments is that: FIG. 4B The first part 120a of the protective member 120 in the third embodiment is T-shaped. FIG. 4C The difference between the shell assembly 10 in the third embodiment and that in the first and second embodiments is that: FIG. 6A The first part 120a of the protective member 120 in the third embodiment is T-shaped. FIG. 6B The difference between the shell assembly 10 in the third embodiment and that in the first and second embodiments is that: FIG. 6C The first part 120a of the protective member 120 in the third embodiment is T-shaped. FIG. 6A The difference between the shell assembly 10 in the third embodiment and that in the first and second embodiments is that: FIG. 6B The first part 120a of the protective member 120 in the third embodiment is T-shaped. FIG. 6C The difference between the shell assembly 10 in the third embodiment and that in the first and second embodiments is that: FIG. 6A The first part 120a of the protective member 120 in the third embodiment is T-shaped. The difference between the shell assembly 100 in the third embodiment and that in the first and second embodiments is that:

[0105] The first part 120a of the protective member 120 in the third embodiment is T-shaped. FIG. 6A The difference between the shell assembly 100 in the third embodiment and that in the first and second embodiments is that: FIG. 6B The first part 120a of the protective member 120 in the third embodiment is T-shaped. FIG. 6C The difference between the shell assembly 100 in the third embodiment and that in the first and second embodiments is that: FIG. 4A The first part 120a of the protective member 120 in the third embodiment is T-shaped. The difference between the shell assembly 100 in the third embodiment and that in the first and second embodiments is that:

[0106] In some embodiments, the included angle between the vertical side 1201 and the horizontal side 1202 can be 90°, or it can be other angles, such as any angle between 80° and 100°. It should be noted that this application does not impose any limitation on the included angle between the vertical side 1201 and the horizontal side 1202; the included angle between the vertical side 1201 and the horizontal side 1202 can also be other angles.

[0107] It should be noted that, FIG. 4B , FIG. 4C and FIG. 6A Other structural and material properties are respectively with FIG. 6B , FIG. 6C and FIG. 4A Similar, therefore, FIG. 4B , FIG. 4C and FIG. 6A Other relevant descriptions can be found above. FIG. 6D , FIG. 6E and FIG. 6D The relevant embodiments will not be described in detail here.

[0108] The following is combined FIG. 6A , FIG. 6E and FIG. 6D A sixth embodiment of the housing assembly of this application will be described in detail.

[0109] FIG. 6D It shows FIG. 6E A three-dimensional structural diagram of the second type of protective component 120; FIG. 6B It shows FIG. 6C A three-dimensional structural diagram of the middle protective component 120 from another angle. FIG. 6D and FIG. 6E Protective component 120 and FIG. 6D and FIG. 6E Compared to the 120 protective component, the only difference is: FIG. 4D and FIG. 4E The second part 120b of the protective element 120 is a lubricating coating to further reduce friction between the protective element 120 and the outer surface S1 of the shaft assembly.

[0110] It should be noted that, FIG. 6D and FIG. 6E Part 2, section 120b, details the lubricating coating. FIG. 4D and FIG. 4E The content of Part 2, 120b, regarding the lubricating coating is similar; therefore... FIG. 6D and FIG. 6E The relevant description of the intermediate lubrication coating can be found FIG. 6B and FIG. 6C The relevant embodiments described herein will not be repeated here. Furthermore, it can be understood that... FIG. 6Band FIG. 6C other structures in ​ and ​ are similar to the structures in ​ and ​ , and the related embodiments in the above description can be referred to, and will not be repeated here.

[0111] The above description only illustrates the implementation of the present application by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosure of the present application. Although the description of the present application is introduced in combination with some embodiments, this does not mean that the features of the present application are limited to the implementation. On the contrary, the purpose of introducing the present application in combination with the implementation is to cover other options or modifications that can be extended based on the claims of the present application. The present application can also not use these details. In addition, in order to avoid confusion or obscure the focus of the present application, some specific details are omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0112] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "fitting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0113] Obviously, those skilled in the art can make various modifications and changes to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and changes of the present application belong to the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and changes.

Claims

1. A housing assembly for an electronic device, the housing assembly comprising: The shell assembly is capable of rotating relative to a rotating shaft assembly of the electronic device when the shell assembly is mounted on the electronic device, wherein the shell assembly comprises: a shell, when the shell assembly is mounted on the electronic device, the shell has a first gap with an appearance surface of the rotating shaft assembly of the electronic device; a first protective piece arranged on the shell, when the shell assembly is mounted on the electronic device, the first protective piece is located in the first gap, the first protective piece comprises a first part and a second part connected with each other, the first protective piece is connected with the shell through the first part, and during the rotation of the shell assembly relative to the rotating shaft assembly, the second part is capable of contacting and sliding along the appearance surface; wherein the material of the first part is self-lubricating metal, and the material of the second part is lubricating material.

2. The housing assembly of claim 1, wherein, The hardness value of the first protective piece is less than or equal to 15 HV.

3. The housing assembly of claim 2, wherein, The hardness value of the self-lubricating metal ranges from 5 HV to 15 HV, and the hardness value of the lubricating material is less than or equal to the hardness value of the self-lubricating metal.

4. The housing assembly of claim 3, wherein, The material of the second part of the first protective piece is the self-lubricating metal; or the second part of the first protective piece is a lubricating coating.

5. The housing assembly of claim 4, wherein, The self-lubricating metal comprises one or more of tin-based Babbitt, lead-based self-lubricating alloy and copper-based self-lubricating alloy.

6. The housing assembly of claim 4, wherein, The material of the lubricating coating is one or more of polytetrafluoroethylene, molybdenum disulfide and diamond-like coating.

7. The housing assembly of any one of claims 1-6, wherein, The shell comprises a groove, when the shell assembly is mounted on the electronic device, the opening of the groove faces the appearance surface; wherein the first part is inserted in the groove and fixedly connected with the groove wall.

8. The housing assembly of claim 7, wherein, The groove is arranged on the first surface of the shell, wherein the first part is fixedly connected with the first surface.

9. The housing assembly of claim 8, wherein, The first part is L-shaped structure, the vertical edge of the first part is inserted in the groove, and the horizontal edge of the first part is bonded with the first surface.

10. The housing assembly of claim 8, wherein, The first part is U-shaped structure, the shell comprises a first groove and a second groove arranged at intervals, the two side edges of the first part are respectively inserted in the first groove and the second groove, and the bottom edge of the first part is bonded with the first surface.

11. The housing assembly of claim 8, wherein, The first part is T-shaped structure, the vertical edge of the first part is inserted in the groove, and the horizontal edge of the first part is bonded with the first surface.

12. The housing assembly of claim 1, wherein, The shell assembly is capable of rotating relative to a rotating shaft assembly of the electronic device around a first axis when the shell assembly is mounted on the electronic device; The number of the first protective pieces is multiple, and the multiple first protective pieces are arranged at intervals along the extension direction of the first axis.

13. An electronic device, comprising: The shell assembly and the rotating shaft assembly as claimed in any one of claims 1-12 are provided, the shell assembly is capable of rotating relative to the rotating shaft assembly; wherein the shell has a first gap with an appearance surface of the rotating shaft assembly; The first protective piece is located in the first gap, and during the rotation of the shell assembly relative to the rotating shaft assembly, the second part of the first protective piece is capable of contacting and sliding along the appearance surface.

14. The electronic device of claim 13, wherein, During rotation of the shell assembly relative to the rotating shaft assembly, the second portion of the first shield is pressed against the rotating shaft assembly.

Images