A housing assembly and an electronic device

Abstract

The application provides a shell assembly and an electronic device, and relates to the technical field of terminal equipment. The shell assembly is used to solve the problem that the independent structure of the electronic device has a gap at the splicing position and color difference caused by different materials, which affects the overall structural aesthetics. The shell assembly comprises a first shell, a second shell, a compensation layer and an appearance layer. The first shell has a first abutting surface, and part of the outer surface of the first shell forms a first splicing surface. The second shell has a second abutting surface, and part of the outer surface of the second shell forms a second splicing surface. The first shell and the second shell are fixedly connected, the first abutting surface and the second abutting surface are mutually attached, and the first splicing surface and the second splicing surface are mutually flush. The compensation layer covers the first splicing surface and the second splicing surface. The appearance layer covers the compensation layer.

Description

TECHNICAL FIELD

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

[0002] A notebook computer is a common electronic device in daily life. The notebook computer comprises a display part and a keyboard part, the display part and the keyboard part are rotationally connected through a hinge seat, and the hinge seat can be hidden by a hinge cover to improve the overall structural aesthetics. However, due to material and process limitations, the hinge cover, the shell of the display part and the shell of the keyboard part cannot be integrally formed, and the independent structural members have gaps and color differences formed by different materials at the splicing position, thereby affecting the overall structural aesthetics. SUMMARY

[0003] Embodiments of the present application provide a shell assembly and an electronic device, which are used to solve the problem that independent structural members of an electronic device have gaps and color differences formed by different materials at the splicing position, thereby affecting the overall structural aesthetics.

[0004] To achieve the above-mentioned purpose, embodiments of the present application adopt the following technical solutions:

[0005] In a first aspect, a shell assembly is provided, which comprises a first shell, a second shell, a compensation layer and an appearance layer. The first shell has a first abutting surface, and a partial region of an outer surface of the first shell forms a first splicing surface. The second shell has a second abutting surface, and a partial region of an outer surface of the second shell forms a second splicing surface. The first shell and the second shell are fixedly connected, the first abutting surface and the second abutting surface are mutually attached, and the first splicing surface and the second splicing surface are mutually flush. The compensation layer covers the first splicing surface and the second splicing surface. The appearance layer covers the compensation layer.

[0006] The shell assembly provided by the first aspect of the present application can fill the uneven structure on the first splicing surface and the second splicing surface through the compensation layer, so as to ensure the flatness of the first splicing surface and the second splicing surface. Moreover, the appearance layer covers the compensation layer, so that the first splicing surface and the second splicing surface form a complete plane in appearance, thereby making the first shell and the second shell form an overall structure in appearance, which is conducive to improving the overall aesthetics.

[0007] Moreover, since the first shell and the second shell are actually two independent structural members, the first shell and the second shell can be made of different materials, thereby being able to increase the selection range of the manufacturing materials of the first shell and the second shell, and being conducive to reducing the cost.

[0008] In a possible implementation of the first aspect of the present application, the shell assembly further includes a filling layer, the filling layer is arranged between the first abutting surface and the second abutting surface, and the compensation layer covers the first splicing surface, the filling layer, and the second splicing surface. In this structure, the filling layer can further reduce the risk of having a gap between the first abutting surface and the second abutting surface, and the filling layer can form a support structure for the compensation layer, thereby reducing the risk of cracks on the appearance layer.

[0009] In a possible implementation of the first aspect of the present application, the material of the filling layer is an adhesive material. In this structure, the filling layer can further increase the connection strength between the first shell and the second shell, thereby facilitating to improve the connection reliability between the first shell and the second shell.

[0010] In a possible implementation of the first aspect of the present application, the appearance layer covers the outer surface of the first shell and the second shell. In this structure, the outer surface of the first shell and the second shell can form the same appearance effect, thereby facilitating to further improve the aesthetic appearance.

[0011] In a possible implementation of the first aspect of the present application, the first shell includes a cover body and a frame, the frame is fixed to one side surface of the cover body and extends around the edge of the cover body, a part of the frame away from the surface of the cover body forms the first abutting surface, and a part of the outer surface of the frame forms the first splicing surface. The second shell includes a fixed part and a connecting part, the second abutting surface and the second splicing surface are both formed on the connecting part, and the fixed part is attached to and fixedly connected with the cover body. In this structure, the first shell and the second shell are fixedly connected by the fixed part and the cover body, that is, the fixed part and the cover body are attached to each other and fixed, and thus the stress between the first abutting surface and the second abutting surface can be reduced, thereby further reducing the risk of cracks on the appearance layer.

[0012] In a possible implementation of the first aspect of the present application, one of the frame and the connecting part is provided with a protruding part, the other of the frame and the connecting part is provided with a recessed part, the protruding part and the recessed part are arranged between the first abutting surface and the second abutting surface, and the protruding part extends into the recessed part. In this structure, the base area between the first abutting surface and the second abutting surface can be increased to improve the connection strength, and the first abutting surface and the second abutting surface both form a plurality of mutually independent planar regions, thereby facilitating to ensure the flatness of each planar region to reduce the risk of having a gap between the first abutting surface and the second abutting surface.

[0013] In a possible implementation of the first aspect of the present application, the recess is arranged on the first abutting surface, the first abutting surface comprises a first region and two second regions, the first region is arranged between the two second regions along the extension direction of the frame, and the first region is the bottom surface of the recess. In this structure, the sidewall between the first region and the second region is opposite to the sidewall on the corresponding protrusion, and the filling part between the two sidewalls can be subjected to the extrusion force along the extension direction of the frame, thereby ensuring that the filling part between the two sidewalls is filled by the filling layer.

[0014] In a possible implementation of the first aspect of the present application, the second abutting surface comprises a third region and a fourth region, the third region and the fourth region are distributed along the thickness direction of the frame, the third region is arranged on the side of the fourth region close to the inside of the frame, the third region abuts against the first abutting surface, and the fourth region is provided with the filling layer between the first abutting surface. In this structure, a sidewall is formed between the third region and the fourth region, which can block the filling layer material from overflowing into the first housing, thereby facilitating the difficulty of wiping the overflowing material.

[0015] In a possible implementation of the first aspect of the present application, the connecting part further comprises a third abutting surface, the third abutting surface is connected with the second abutting surface, and the third abutting surface abuts against the inner wall of the frame. In this structure, the contact area between the connecting part and the frame is increased, which is beneficial to improve the connection stability therebetween.

[0016] In a possible implementation of the first aspect of the present application, the fixing part comprises a first part and a second part, the first part is fixedly connected with the cover body and is attached to the cover body, and the connecting part wraps the second part. In this structure, the connecting part and the fixing part form two independent components, so that the fixing part bears the overall stress and reduces the risk of local stress concentration between the connecting part and the upper cover.

[0017] In a possible implementation of the first aspect of the present application, there is a gap between the opposite surfaces between the connecting part and the second part. In this structure, the stress of the fixing part can be further prevented from being transmitted to the connecting part, thereby further reducing the risk of local stress concentration between the connecting part and the upper cover.

[0018] In a possible implementation of the first aspect of the present application, the housing assembly further comprises a third housing and a pivot base, one of the second housing and the third housing is fixedly connected with the pivot base, and the other of the second housing and the third housing is rotationally connected with the pivot base. For example, the first housing can be the upper cover, the second housing can be the pivot cover, and the third housing can be the upper shell and the bottom shell.

[0019] In a possible implementation of the first aspect of the present application, an appearance layer is arranged on the outer surface of the third housing. In this structure, the appearance effect of the overall structure is the same, which is beneficial to improve the overall aesthetic appearance.

[0020] In a possible implementation of the first aspect of the present application, two rotation shaft seats are arranged, one at each end of the second shell along the length direction, and the length direction of the second shell is parallel to the rotation axis of the rotation shaft seat. In this structure, the relative rotation between the first shell and the third shell can be balanced, which is beneficial to improve the reliability of the overall structure.

[0021] In the second aspect, an electronic device is provided, which includes a display screen and a shell assembly. The shell assembly is as described in any of the above technical solutions. The display screen is fixedly connected with the shell assembly.

[0022] The electronic device provided in the second aspect of the present application can solve the same technical problem and achieve the same technical effect, because it includes the shell assembly as described in any of the above solutions.

[0023] In a possible implementation of the second aspect of the present application, the shell assembly includes a third shell, and the third shell is rotationally connected with the second shell. The electronic device includes a keyboard, and the keyboard is arranged on the third shell. For example, the electronic device is a notebook computer, the first shell includes an upper cover and a decorative cover, the second shell is a rotation shaft cover, and the third shell includes an upper shell and a bottom shell. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 A structural diagram of an electronic device (in an open state) provided by an embodiment of the present application is shown;

[0025] Figure 2 A structural diagram of an electronic device (in a folded state) provided by an embodiment of the present application is shown;

[0026] Figure 3 An exploded view of an electronic device provided by an embodiment of the present application is shown;

[0027] Figure 4 A structural diagram of a display part provided by an embodiment of the present application is shown;

[0028] Figure 5 A partial enlarged view of a display part provided by an embodiment of the present application is shown;

[0029] Figure 6 A structural diagram of a keyboard part provided by an embodiment of the present application is shown;

[0030] Figure 7 A partial enlarged view of a keyboard part provided by an embodiment of the present application is shown;

[0031] Figure 8 A structural diagram of a rotation shaft mechanism provided by an embodiment of the present application is shown;

[0032] Figure 9A partial structure enlarged view of a rotating shaft mechanism in an electronic device provided by an embodiment of the present application;

[0033] Figure 10 A partial structure enlarged view of an electronic device (first rotating shaft seat partially exposed) provided by an embodiment of the present application;

[0034] Figure 11 A partial structure enlarged view of an electronic device (first rotating shaft seat hidden) provided by an embodiment of the present application;

[0035] Figure 12 A structure view of another rotating shaft mechanism provided by an embodiment of the present application;

[0036] Figure 13 An exploded view of a housing assembly provided by an embodiment of the present application;

[0037] Figure 14 A structure view of a housing assembly provided by an embodiment of the present application;

[0038] Figure 15 A-A sectional view of Figure 14 ;

[0039] Figure 16 An exploded view of a frame and a connecting part provided by an embodiment of the present application;

[0040] Figure 17 An assembly view of a frame and a connecting part provided by an embodiment of the present application;

[0041] Figure 18 An assembly view of another frame and connecting part provided by an embodiment of the present application;

[0042] Figure 19 An exploded view of another frame and connecting part provided by an embodiment of the present application;

[0043] Figure 20 An assembly structure partial enlarged view of a frame and a connecting part provided by Figure 19 ;

[0044] Figure 21 A partial sectional view of an assembly structure of a frame and a connecting part provided by Figure 19 ;

[0045] Figure 22 A structure view of still another rotating shaft mechanism provided by an embodiment of the present application;

[0046] Figure 23 A partial structure enlarged view of Figure 22 ;

[0047] Figure 24 A structure view of still another rotating shaft mechanism provided by an embodiment of the present application;

[0048] Figure 25 is a B area structure zoomed in view of Figure 24

[0049] Figure 26 is a structure view of the fixed part provided by the embodiment of the present application;

[0050] Figure 27 is a partial structure view of the upper cover and the pivot cover provided by the embodiment of the present application.

[0051] The figure mark: 01-electronic device;10-display part;100-upper cover;101-first abutting surface;101a-first area;101b-second area;102-first splicing surface;110-cover body;120-frame;121-recess;121a-first side wall;122-protrusion;200-display screen;300-decorative cover;400-pivot cover;401-second abutting surface;401a-first sub-area;401b-second sub-area;401c-third area;401d-fourth area;401e-third side wall;402-second splicing surface;403-third abutting surface;410-connection part;411-protruding part;411a-second side wall;412-groove;420-fixed part;421-first part;422-second part;20-keyboard part;500-upper shell;510-key hole;520-accepting gap;600-bottom shell;30-first pivot seat;40-second pivot seat;50-pivot;60-compensation layer;70-outer appearance layer;80-filling layer. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments of the present application.

[0053] Hereinafter, the terms "first", "second", and the like are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include one or more of the features.

[0054] In addition, in the present application, the orientation terms such as "up", "down", and the like are defined with respect to the orientation of the components shown in the drawings, and it should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the orientation of the components placed in the drawings.

[0055] ​In the present application, unless specifically defined and limited otherwise, the term "connection" should be broadly understood, for example, "connection" can be fixed connection, or detachable connection, or integral; can be directly connected, or indirectly connected through intermediate media.

[0056] The electronic device provided by the embodiments of the present application is a kind of terminal device capable of folding. For example, the electronic device can be a notebook computer, and the electronic device is exemplified as a notebook computer in the following embodiments.

[0057] Specifically, refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 the structural diagram of the electronic device 01 (in an open state) provided by the embodiments of the present application, Figure 2 the structural diagram of the electronic device 01 (in a folded state) provided by the embodiments of the present application, Figure 3 the exploded view of the electronic device 01 provided by the embodiments of the present application. The electronic device 01 can include a display portion 10 and a keyboard portion 20.

[0058] For the convenience of the following description, an XYZ coordinate system is established, and the width direction of the electronic device 01 is defined as the X-axis direction, the length direction of the electronic device 01 is defined as the Y-axis direction, and the thickness direction of the electronic device 01 is defined as the Z-axis direction. It can be understood that the coordinate system of the electronic device 01 can be flexibly set according to actual needs, and the embodiments of the present application only give one possible example, and it cannot be considered as a special limitation to the present application. And Figure 1 and Figure 2 only schematically show some components included in the electronic device 01, and the actual shape, actual size, actual position and actual structure of these components are not limited by Figure 1 and Figure 2 .

[0059] The display portion 10 described above is used to display images, videos, etc. Please refer to Figure 4 and Figure 5 , Figure 4 the structural diagram of the display portion 10 provided by the embodiments of the present application, Figure 5 the partial enlarged view of the display portion 10 provided by the embodiments of the present application.

[0060] The aforementioned display portion 10 may include a top cover 100, a display screen 200, and a decorative cover 300. The display screen 200 is fixed to the top cover 100, and the decorative cover 300 is fixedly connected to the top cover 100 and covers the edge area of ​​the display screen 200 to conceal the gap between the display screen 200 and the top cover 100, thereby improving aesthetics. For example, the display screen 200 and the top cover 100, as well as the decorative cover 300 and the top cover 100, may be fixedly connected by adhesive, snap-fit, or other methods. Furthermore, the top cover 100 and the decorative cover 300 may be made of metal or plastic; therefore, this embodiment does not impose any special limitations on their use.

[0061] Furthermore, the aforementioned display screen 200 can be a flexible display screen or a rigid display screen. For example, the display screen 200 can be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode (MLED) display screen, a micro organic light-emitting diode (MOLED) display screen, a quantum dot light-emitting diode (QLED) display screen, or a liquid crystal display (LCD).

[0062] The keyboard section 20 described above is used for editing or other operations on the content displayed on the screen 200. Please refer to [link / reference]. Figure 6 and Figure 7 , Figure 6 This is a structural diagram of the keyboard portion 20 provided in an embodiment of this application. Figure 7 This is a partial enlarged view of the keyboard portion 20 provided in an embodiment of this application.

[0063] The keyboard section 20 may include a keyboard ( Figure 6 The keyboard comprises an upper shell 500 (not shown) and a lower shell 600. The upper shell 500 and the lower shell 600 are fixedly connected, for example, by means of adhesive bonding, snap-fitting, threaded connection, or welding. A receiving space is formed between the upper shell 500 and the lower shell 600. The keyboard is disposed within the receiving space, and the keys of the keyboard extend out of the surface of the upper shell 500 through key holes 510 provided on the upper shell 500.

[0064] And, the accommodating space is provided with a mainboard, a CPU (central processing unit), a display card, a memory, a heat dissipation component and other electronic devices. The keyboard and the display screen 200 are electrically connected with the mainboard, so that the content displayed on the display screen 200 can be edited through the keyboard.

[0065] Please refer to Figures 1-3 The display part 10 and the keyboard part 20 are rotationally connected, so that the display part 10 and the keyboard part 20 can rotate relative to each other, thereby realizing the rotation of the electronic device 01 between the unfolded state and the folded state. When the electronic device 01 is in the unfolded state (as shown in Figure 1 The display part 10 rotates away from the keyboard part 20, so that an included angle is formed between the display part 10 and the keyboard part 20, so that the display screen 200 and the keyboard are separated, so as to facilitate the viewing of the image displayed on the display screen 200 and the operation through the keyboard.

[0066] When the electronic device 01 is in the folded state (as shown in Figure 2 The display part 10 and the keyboard part 20 are buckled with each other, that is, they are stacked. The display screen 200 is opposite to the keyboard and is located between the upper cover 100 and the bottom shell 600, thereby effectively protecting the display screen 200 and the keyboard. In this state, the electronic device 01 forms a plate-shaped structure, which is convenient to carry.

[0067] In some examples, please refer to Figure 8 and Figure 9 , Figure 8 a structure diagram of a rotation shaft mechanism provided by the embodiment of the application, Figure 9 a partial structure enlarged view of the rotation shaft mechanism in the electronic device 01 provided by the embodiment of the application. Among them, Figure 9 only part of the side wall of the upper shell 500 is shown.

[0068] Among them, the electronic device 01 includes a first rotation shaft seat 30, a second rotation shaft seat 40 and a rotation shaft 50. The first rotation shaft seat 30 is fixedly connected with the upper cover 100. The second rotation shaft seat 40 is arranged in the accommodating space and is fixedly connected with the upper shell 500 or the bottom shell 600. One end of the rotation shaft 50 is fixedly connected with the first rotation shaft seat 30, and the other end of the rotation shaft 50 is rotationally connected with the second rotation shaft seat 40, that is, an axle hole is formed on the second rotation shaft seat 40. The rotation shaft 50 penetrates the side wall of the upper shell 500 and is inserted into the axle hole on the second rotation shaft seat 40.

[0069] In addition, in order to improve the appearance of the electronic device 01, please refer to Figure 10 and Figure 11 , Figure 10Figure 2 is a partial enlarged view of the electronic device 01 (the first rotating shaft seat 30 is partially exposed) according to an embodiment of the present application, Figure 11 Figure 3 is a partial enlarged view of the electronic device 01 (the first rotating shaft seat 30 is hidden) according to an embodiment of the present application.

[0070] The electronic device 01 can further include a rotating shaft cover 400, which is used to hide the first rotating shaft seat 30, the second rotating shaft seat 40 and the part of the rotating shaft 50 exposed outside, so that the first rotating shaft seat 30, the second rotating shaft seat 40 and the rotating shaft 50 are completely hidden, thereby improving the overall aesthetics of the electronic device 01.

[0071] Exemplarily, the rotating shaft cover 400 can be fixedly connected with the upper cover 100, i.e., the rotating shaft cover 400 can rotate synchronously with the upper cover 100, the first rotating shaft seat 30 is arranged inside the rotating shaft cover 400, and one end of the rotating shaft 50 penetrates the side wall of the rotating shaft cover 400 in the Y-axis direction. The upper shell 500 has a receiving gap 520 for accommodating the rotating shaft cover 400, and the end of the rotating shaft 50 extending out of the rotating shaft cover 400 penetrates the side wall of the receiving gap 520, i.e., the end of the rotating shaft 50 away from the first rotating shaft seat 30 extends into the receiving space and is inserted into the shaft hole of the second rotating shaft seat 40.

[0072] It can be understood that the rotating mechanism formed by the first rotating shaft seat 30, the second rotating shaft seat 40 and the rotating shaft 50 can further include other structures, for example, the rotating mechanism can further include a damping component, which can generate a damping force during the relative rotation of the first rotating shaft seat 30 and the second rotating shaft seat 40, i.e., during the rotation of the display part 10 relative to the keyboard part 20, so that the display part 10 can be suspended at any position relative to the keyboard part 20 to adapt to different use environments and use habits, and the embodiments of the present application do not make detailed description.

[0073] In other examples, please refer to Figure 12 , Figure 12 Figure 4 is a structural diagram of another rotating shaft mechanism according to an embodiment of the present application. In this embodiment, the rotating shaft cover 400 can be integrally formed with the upper cover 100, and the rotating shaft cover 400 is connected with the rotating shaft 50, i.e., Figure 3 The rotating shaft cover 400, the first rotating shaft seat 30 and the upper cover 100 shown in the figure form a structural member as a whole to improve the aesthetics of the overall structure.

[0074] With the development trend of the electronic device 01 thin and light, the structural member such as the upper cover 100 will adopt a material with light weight and high strength, for example, carbon fiber material, which has the characteristics of low density, high strength, corrosion resistance and the like. Therefore, under the condition of ensuring the strength of the upper cover 100, the weight of the upper cover 100 can be significantly reduced, thereby realizing the thin and light of the electronic device 01. In this case, due to the characteristics of the carbon fiber material, it cannot be processed into a complex structure shape, for example, the shaft hole structure, that is Figure 12 The integrally formed structure shown in the figure cannot be made of carbon fiber material.

[0075] Therefore, the above-mentioned rotating shaft cover 400 and the upper cover 100 need to be processed respectively to form two independent structural members, and the two can be fixedly connected, for example, the rotating shaft cover 400 and the upper cover 100 can be adhesively fixed. In this case, the upper cover 100 can be made of carbon fiber material, and the rotating shaft cover 400 can be made of metal material.

[0076] However, after the rotating shaft cover 400 and the upper cover 100 are fixedly connected, the appearance surfaces of the two have a gap formed after splicing (hereinafter referred to as a splicing seam), and the rotating shaft cover 400 and the upper cover 100 are made of different materials, so that obvious color difference will be formed on both sides of the splicing seam, affecting the delicacy of the appearance and reducing the aesthetic appearance of the electronic device 01.

[0077] Based on this, the shell assembly provided by the embodiments of the present application can be applied to the above-mentioned electronic device 01. Please refer to Figure 13 , Figure 14 and Figure 15 , Figure 13 the exploded view of the shell assembly provided by the embodiments of the present application, Figure 14 the structural view of the shell assembly provided by the embodiments of the present application, Figure 15 the A-A sectional view of Figure 14 .

[0078] The above-mentioned shell assembly can include a first shell and a second shell, for example, the first shell is the above-mentioned upper cover 100, and the second shell is the above-mentioned rotating shaft cover 400. The upper cover 100 has a first abutting surface 101, and part of the outer surface of the upper cover 100 forms a first splicing surface 102. The rotating shaft cover 400 has a second abutting surface 401, and part of the outer surface of the rotating shaft cover 400 forms a second splicing surface 402.

[0079] Among them, the upper cover 100 and the rotating shaft cover 400 are fixedly connected, the first abutting surface 101 and the second abutting surface 401 are mutually attached to form a splicing seam on the outer surfaces of the upper cover 100 and the rotating shaft cover 400, the first splicing surface 102 and the second splicing surface 402 are respectively located on both sides of the splicing seam, and the first splicing surface 102 and the second splicing surface 402 are mutually flush, that is, the first splicing surface 102 and the second splicing surface 402 are in the same plane.

[0080] And the shell assembly further comprises a compensation layer 60 and an appearance layer 70, the compensation layer 60 covers the first splicing surface 102 and the second splicing surface 402, and the appearance layer 70 covers the compensation layer 60.

[0081] In some examples, the compensation layer 60 can be formed by a putty paint, a patching process or a cold spraying process. Among them, the compensation layer 60 can compensate for the unevenness on the first splicing surface 102 and the second splicing surface 402 due to the difference in materials, so as to ensure that the surface of the compensation layer 60 away from the first splicing surface 102 and the second splicing surface 402 is flat, without obvious marks and color difference.

[0082] For example, the material of the putty paint can include base resin (acrylic emulsion / modified polyurethane resin) + ultra-fine filler (talcum powder / barium sulfate, particle size ≤5 μm, to avoid scratching the plastic surface) + flexibility aid (phthalate, matching the thermal expansion coefficient of plastic) + environmentally friendly solvent (deionized water / isopropyl alcohol, no benzene volatile matter). The material of the patching process can include epoxy resin / alkyd resin, ultra-fine talcum powder (particle size <5 μm). The material of the cold spraying process can include metal powder, metal and ceramic composite powder, etc.

[0083] The above-mentioned appearance layer 70 can be coated with different colored materials on the compensation layer 60 by a spraying process, or an anodizing process can be performed on the surface of the compensation layer 60 to form the appearance layer 70, so that the first splicing surface 102 and the second splicing surface 402 form a complete plane. It can be understood that the appearance layer 70 can be flexibly set based on a specific CMF scheme, i.e. Color (color), Material (material), Finish (surface treatment) scheme, so that the outer surfaces of the upper cover 100 and the shaft cover 400 form a consistent appearance effect. Therefore, the present application does not specially limit this.

[0084] And the appearance layer 70 can also cover other areas (areas other than the first splicing surface 102 and the second splicing surface 402) of the outer surface of the upper cover 100 and the outer surface of the shaft cover 400, i.e. the appearance layer 70 completely covers the outer surface of the upper cover 100 and the outer surface of the shaft cover 400, thereby further ensuring that the upper cover 100 and the shaft cover 400 form a whole structure in appearance, which is beneficial to further improve the aesthetic appearance of the whole structure.

[0085] On this basis, please continue to refer to Figures 13-15The shell assembly can further include a filling layer 80 arranged between the first abutting surface 101 and the second abutting surface 401, i.e., the filling layer 80 fills in the joint seam. Therefore, when the compensation layer 60 covers the joint seam, the filling layer 80 can form a bearing structure of the compensation layer 60, so as to avoid the situation that cracks appear on the compensation layer 60 due to the lack of the bearing structure at the joint seam, so as to ensure that the compensation layer 60 can completely cover the first joint surface 102, the second joint surface 402 and the joint seam therebetween.

[0086] Exemplarily, the filling layer 80 can be made of an adhesive material (for example, glue or adhesive tape, etc.), so as to bond and fix the first abutting surface 101 and the second abutting surface 401 through the filling layer 80. On the one hand, the filling layer 80 can form a bearing structure of the compensation layer 60, so as to ensure the surface integrity of the compensation layer 60. On the other hand, the connection strength between the hinge cover 400 and the upper cover 100 can be improved, which is beneficial to improve the stability of the overall structure.

[0087] Therefore, by covering the first joint surface 102 of the upper cover 100 and the second joint surface 402 of the hinge cover 400 with the compensation layer 60, and then covering the compensation layer 60 with the appearance layer 70, the joint seam between the first joint surface 102 and the second joint surface 402 can be shielded, so that the first joint surface 102 and the second joint surface 402 form a complete plane, i.e., the upper cover 100 and the hinge cover 400 form a complete structural member in appearance, which is beneficial to improve the aesthetic appearance of the upper cover 100 and the decorative cover 300.

[0088] In addition, the upper cover 100 and the hinge cover 400 can be made of different materials respectively, for example, the upper cover 100 can be made of carbon fiber material, and the hinge cover 400 can be made of magnesium alloy or plastic material. The shell assembly applied to the electronic device 01 can reduce the processing difficulty and cost of the structural member while ensuring the thinness of the electronic device 01.

[0089] Specifically, please continue to refer to Figures 13-15 The upper cover 100 can include a cover body 110 and a frame 120 fixed to one side surface of the cover body 110, and the frame 120 extends along the edge of the cover body 110, i.e., the frame 120 forms a frame structure. The part of the frame 120 away from the surface of the cover body 110 forms the first abutting surface 101, and the part of the outer surface of the frame 120 forms the first joint surface 102.

[0090] The rotation shaft cover 400 can include a fixed part 420 and a connecting part 410, the second abutting surface 401 and the second splicing surface 402 are both formed on the connecting part 410, and the fixed part 420 is attached to and fixedly connected with the cover body 110. Exemplarily, the fixed part 420 and the cover body 110 can be attached by adhesion, welding or fixedly connected by a threaded fastener.

[0091] Exemplarily, the first abutting surface 101 and the first splicing surface 102 are both formed on the area of the bezel 120 extending along the Y-axis direction, the first abutting surface 101 is parallel to the XY plane, and the first splicing surface 102 is parallel to the YZ plane, that is, the first abutting surface 101 and the first splicing surface 102 are perpendicular to each other. Correspondingly, the second abutting surface 401 is parallel to the XY plane, and the second splicing surface 402 is parallel to the YZ plane.

[0092] In some embodiments, referring to Figure 16 and Figure 17 , Figure 16 an exploded view of the bezel 120 and the connecting part 410 provided by the embodiments of the present application, Figure 17 an assembly view of the bezel 120 and the connecting part 410 provided by the embodiments of the present application. In the assembly view, Figure 16 and Figure 17 the above-mentioned compensation layer 60 and the appearance layer 70 are not shown in the above-mentioned assembly view.

[0093] One of the bezel 120 and the connecting part 410 is provided with a protruding part 411, and the other of the bezel 120 and the connecting part 410 is provided with a recessed part 121. The protruding part 411 and the recessed part 121 are arranged between the first abutting surface 101 and the second abutting surface 401, and the protruding part 411 extends into the recessed part 121.

[0094] Exemplarily, the recessed part 121 is arranged on the bezel 120, and the protruding part 411 is arranged on the connecting part 410. The recessed part 121 can make the first abutting surface 101 on the bezel 120 form two areas, that is, the first abutting surface 101 includes a first area 101a and a second area 101b, and the first area 101a is the bottom surface of the recessed part 121. Correspondingly, the second abutting surface 401 also forms two areas, which are referred to as a first sub-area 401a and a second sub-area 401b, the first sub-area 401a is arranged opposite to the first area 101a, and the second sub-area 401b is arranged opposite to the second area 101b.

[0095] In this way, the first abutting surface 101 forms two planes, i.e., the first region 101a and the second region 101b, which are distributed along the Z-axis direction. The sum of the areas of the first region 101a and the second region 101b is equal to the area of the first abutting surface 101, i.e., the area of the first region 101a and the area of the second region 101b are both smaller than the area of the first abutting surface 101. Correspondingly, the area of the first sub-region 401a and the area of the second sub-region 401b are both smaller than the area of the second abutting surface 401.

[0096] Due to the reduction of the areas of the first region 101a, the second region 101b, the first sub-region 401a and the second sub-region 401b, the flatness of each region is guaranteed. Therefore, when the first abutting surface 101 and the second abutting surface 401 are bonded and fixed by the filling layer 80, the adhesion between the first abutting surface 101 and the second abutting surface 401 and the filling layer 80 is guaranteed, so as to reduce the risk of existing gaps between the first abutting surface 101 and the filling layer 80 and between the second abutting surface 401 and the filling layer 80, and improve the bonding strength between the first abutting surface 101 and the second abutting surface 401.

[0097] In some examples, please refer to Figure 16 and Figure 17 The recess 121 can penetrate the inner and outer surfaces of the frame 120, and the recess 121 is arranged in the middle region of the first abutting surface 101 along the Y-axis direction. The recess 121 forms two second regions 101b on the first abutting surface 101, and the two second regions 101b are respectively located on the two sides of the recess 121. Correspondingly, the protrusion 411 makes the second abutting surface 401 form two second sub-regions 401b.

[0098] In this case, the protrusion 411 extends into the recess 121, and the opposite surfaces between the protrusion 411 and the recess 121 further include side walls parallel to the Z direction, which are respectively referred to as the first side wall 121a (arranged on the recess 121) and the second side wall 411a (arranged on the protrusion 411), and the first side wall 121a and the second side wall 411a are bonded and fixed by the filling layer 80.

[0099] Since the first sidewall 121a connects the first region 101a and the second region 101b, and the second sidewall 411a connects the first sub-region 401a and the second sub-region 401b, when a filling layer 80 is provided between the first abutting surface 101 and the second abutting surface 401, the filling layer 80 filled between the first sidewall 121a and the second sidewall 411a will be subjected to extrusion pressure along the Y-axis direction. This ensures that the space between the first sidewall 121a and the second sidewall 411a is fully filled by the filling layer 80, which is beneficial to further improve the connection strength between the first abutting surface 101 and the second abutting surface 401.

[0100] Furthermore, by dividing the first abutment surface 101 and the second abutment surface 401 into multiple regions for bonding and fixing, the stress points between the first abutment surface 101 and the second abutment surface 401 can be dispersed. That is, stress points are formed between the first region 101a and the first sub-region 401a, and between the second region 101b and the second sub-region 401b. This helps to reduce the risk of local stress concentration between the first splicing surface 102 and the second splicing surface 402, thereby improving the structural reliability.

[0101] In other examples, please refer to Figure 18 , Figure 18 This is an assembly diagram of another frame and connecting portion provided in an embodiment of this application. Multiple protrusions 411 can be provided, and these protrusions 411 can be spaced apart along the Y-axis direction, i.e., a groove 412 is formed between two adjacent protrusions 411. Correspondingly, multiple recesses 121 can also be provided, and these recesses 121 can be spaced apart along the Y-axis direction, i.e., a protrusion 122 is formed between two adjacent recesses 121.

[0102] The protrusion 411 extends into the corresponding recess 121, and the protrusion 122 extends into the corresponding groove 412, so that the first abutting surface 101 and the second abutting surface 401 both form multiple regions, which helps to further ensure the flatness of each region, so as to ensure that the first abutting surface 101 and the second abutting surface 401 fit together, and further reduce the risk of local stress concentration.

[0103] In other embodiments, please refer to Figure 19 , Figure 20 as well as Figure 21 , Figure 19 An exploded view of another frame 120 and connecting portion 410 provided in an embodiment of this application. Figure 20 for Figure 19 A partially enlarged view of the assembly structure of the frame 120 and the connecting part 410 is provided. Figure 21 for Figure 19 A partial cross-sectional view of the assembly structure of the frame 120 and the connecting part 410.

[0104] The second abutting surface 401 can include a third region 401c and a fourth region 401d, which are distributed along the thickness direction of the frame 120. For example, the second abutting surface 401 is arranged on the region of the frame 120 extending along the Y-axis direction, and the third region 401c and the fourth region 401d are distributed along the X-axis direction.

[0105] The third region 401c is arranged inside the fourth region 401d, that is, the third region 401c is close to the inner side of the frame 120, and the fourth region 401d is close to the outer side of the frame 120. The third region 401c abuts against the first abutting surface 101, and the fourth region 401d is provided with the filling layer 80 between the first abutting surface 101. That is, the third region 401c and the fourth region 401d are both different in height along the Z-axis direction, so that the third region 401c and the fourth region 401d have a third side wall 401e therebetween, which can block the filling layer 80, thereby avoiding the material of the filling layer 80 overflowing to the inner side of the frame 120.

[0106] In addition, since the third side wall 401e can block the filling layer 80, the material of the filling layer 80 can only overflow from the splicing seam and the end of the connecting portion 410 along the Y-axis direction. Therefore, in the case that the filling layer 80 is an adhesive material, the difficulty of wiping off the overflowing material can be reduced, thereby facilitating the assembly of the upper cover 100 and the rotating shaft cover 400.

[0107] In addition, the connecting portion 410 can also have a third abutting surface 403 connected with the second abutting surface 401, which abuts against the inner wall of the frame 120. For example, the third abutting surface 403 can be perpendicular to the second abutting surface 401, so that the connecting portion 410 and the frame 120 are connected to the surface and the inner wall of the cover body 110, which is beneficial to improve the connection strength between the rotating shaft cover 400 and the upper cover 100.

[0108] In some examples, the area of the connecting portion 410 close to the fixed portion 420 can also be in contact with the cover body 110, and the connecting portion 410 and the cover body 110 can be bonded and fixed, thereby facilitating the increase of the bonding area between the rotating shaft cover 400 and the upper cover 100, and further improving the connection strength therebetween.

[0109] On this basis, the shell assembly can further include a third shell, which includes Figure 3 The upper shell 500 and the bottom shell 600 shown, the third shell and the first shell (i.e. the upper cover 100) can be connected through Figure 3The first shaft seat 30, the second shaft seat 40 and the shaft 50 shown in the figure form a shaft mechanism for rotation connection, and the second shell is used for shielding the shaft mechanism, so as to improve the appearance of the overall structure.

[0110] In some embodiments, referring to Figure 22 and Figure 23 , Figure 22 a structure diagram of another shaft mechanism provided by the embodiments of the present application, Figure 23 for Figure 22 a partial structure enlarged view. Among them, Figure 22 and Figure 23 The upper shell 500 and the bottom shell 600 shown in the above are not shown.

[0111] The shaft mechanism can also only include one second shaft seat 40 (that is, no Figure 3 The first shaft seat 30 shown), which is arranged in the accommodating space formed by the upper shell 500 and the bottom shell 600, and the second shaft seat 40 is fixedly connected with the upper shell 500 or the bottom shell 600. One of the shaft cover 400 and the second shaft seat 40 is fixedly connected with the shaft 50, and the other of the shaft cover 400 and the second shaft seat 40 is rotationally connected with the shaft 50.

[0112] Exemplarily, the second shaft seat 40 is provided with a shaft hole, one end of the shaft 50 is inserted into the shaft hole of the second shaft seat 40 and is rotationally connected with the second shaft seat 40, and the other end of the shaft 50 is fixedly connected with the shaft cover 400. For example, the connecting portion 410 of the shaft cover 400 can be provided with a riveting hole, the shaft 50 is inserted into the riveting hole and is fixedly connected with the shaft cover 400 by riveting, or the shaft 50 and the shaft cover 400 can also be fixedly connected by welding or integral molding.

[0113] Moreover, the two ends of the shaft cover 400 along the Y-axis direction can be respectively provided with one second shaft seat 40, that is, the third shell (including the upper shell 500 and the bottom shell 600) and the first shell (that is, the upper cover 100) have two rotationally connected connecting points, so as to ensure that the third shell and the first shell are balanced in force, thereby improving the reliability of the rotationally connected connection between the two.

[0114] In addition, the outer surface of the third shell can be covered with the appearance layer 70, so that the third shell and the first shell form the same appearance effect.

[0115] Therefore, the shaft 50 is fixedly connected with the shaft cover 400, which can reduce the number of parts of the shaft mechanism, and is conducive to reducing the production cost and assembly difficulty of the electronic device 01. Moreover, the third shell and the first shell form the same appearance effect, which is conducive to further improving the overall appearance of the electronic device 01.

[0116] In the above embodiment, the hinge cover 400 is a structural member as a whole, that is, the connecting portion 410 and the fixing portion 420 are integrally formed, which is beneficial to improve the overall structural strength of the hinge cover 400. In some other embodiments, the connecting portion 410 and the fixing portion 420 can also form two independent components.

[0117] Please refer to Figure 24 、 Figure 25 and Figure 26 , Figure 24 for another structure diagram of a hinge mechanism provided by an embodiment of the present application, Figure 25 for a structure diagram of the fixing portion 420 provided by an embodiment of the present application. In the structure diagram, Figure 24 is an enlarged view of the B area structure of Figure 26 , Figure 26 does not show the second hinge seat 40.

[0118] Specifically, the fixing portion 420 can include a first part 421 and a second part 422, the first part 421 is attached to and fixedly connected with the cover body 110, that is, the first part 421 and the cover body 110 are stacked and distributed along the Z-axis direction. The connecting portion 410 wraps the second part 422, and the hinge 50 is fixedly connected with the second part 422.

[0119] Exemplarily, the first part 421 of the fixing portion 420 forms a plate-shaped structure, and the first part 421 and the cover body 110 are attached to and fixedly connected with each other, which is beneficial to increase the connection area between the first part 421 and the cover body 110, thereby improving the connection strength. The second part 422 of the fixing portion 420 can locally form a cylindrical structure, the axial direction of the cylindrical structure is parallel to the Y-axis direction, and the end face of the second part 422 can be provided with the riveting hole, so that the hinge 50 is riveted and fixed with the second part 422 of the fixing portion 420.

[0120] Moreover, the connecting portion 410 wraps the second part 422 around the circumference of the second part 422, that is, the local structure of the connecting portion 410 forms a sleeve structure coaxially arranged with the second part 422, so that the connecting portion 410 is sleeved on the second part 422.

[0121] In some examples, the inner surface of the sleeve structure formed by the connecting portion 410 and the outer surface (i.e. the outer circumferential surface) of the second part 422 can have a gap, so that the connecting portion 410 and the second part 422 do not contact each other, thereby preventing force transmission between the connecting portion 410 and the second part 422.

[0122] In this way, the connecting portion 410 and the fixing portion 420 form two independent structural members, and the connecting portion 410 and the fixing portion 420 are fixedly connected with the upper cover 100. Among them, the fixing portion 420 is rotationally connected with the second rotating shaft seat 40 through the rotating shaft 50, that is, in the process of rotating the upper cover 100 relative to the third shell, the fixing portion 420 bears the force transmission in the rotating process. The connecting portion 410 is fixed on the upper cover 100, and in the process of rotating the upper cover 100, the connecting portion 410 rotates synchronously with the upper cover 100, that is, there is no relative force between the connecting portion 410 and the upper cover 100, therefore, the splicing position between the connecting portion 410 and the upper cover 100 will not appear the stress concentration, thereby being beneficial to reduce the risk of cracks on the appearance layer 70 due to stress, so as to ensure the beauty of the overall structure.

[0123] In addition, in this case, since the connecting portion 410 is only used as an appearance component, that is, the connecting portion 410 is not stressed in the process of rotating the upper cover 100, therefore, the connecting portion 410 can be processed by using a low-density material, so as to further reduce the structure weight and material cost. For example, the connecting portion 410 can be made of plastic material, and the fixing portion 420 can be made of metal material.

[0124] The processing process of the shell assembly provided by the embodiment of the application is described in detail below.

[0125] S1, process the upper cover 100 and the rotating shaft cover 400 respectively. Please refer to Figure 27 , Figure 27 is a partial structure diagram of the upper cover 100 and the rotating shaft cover 400 provided by the embodiment of the application.

[0126] Specifically, appropriate materials are selected to process the upper cover 100 and the rotating shaft cover 400 respectively, for example, the upper cover 100 can be made of carbon fiber material, and the rotating shaft cover 400 can be made of metal material or plastic material.

[0127] A processing allowance is reserved on the first splicing surface 102 of the upper cover 100 and the second splicing surface 402 of the rotating shaft cover 400, which refers to increasing the wall thickness of the region where the first splicing surface 102 and the second splicing surface 402 are located (as shown in the C region in Figure 27 , so as to further process the first splicing surface 102 and the second splicing surface 402 in the subsequent process.

[0128] S2, assemble the upper cover 100 and the rotating shaft cover 400.

[0129] Specifically, please continue to refer to Figure 27 , and return to refer to Figure 16 and Figure 17The fixed part 420 of the rotating shaft cover 400 is fixedly attached to the cover body 110 of the upper cover 100, for example, the fixed part 420 and the cover body 110 can be attached, welded or clamped. The connecting part 410 of the rotating shaft cover 400 is spliced with the frame 120 of the upper cover 100, and the filling layer 80 is arranged between the connecting part 410 and the frame 120, for example, the filling layer 80 can be a glue.

[0130] In assembly, the first abutting surface 101 of the frame 120 and the second abutting surface 401 (i.e. the fourth region 401d) of the connecting part 410 are respectively glued, and then the first abutting surface 101 and the second abutting surface 401 are attached to each other. At this time, the third region 401c of the second abutting surface 401 abuts against the first abutting surface 101, and the fourth region 401d of the second abutting surface 401 is connected to the first abutting surface 101 through the filling layer 80.

[0131] Next, the upper cover 100 and the decorative cover 300 are pressed to make the filling layer 80 filled enough, and the filling layer 80 is blocked by the third side wall 401e between the third region 401c and the fourth region 401d, so that the filling layer 80 can only overflow from the joint seam between the first splicing surface 102 and the second splicing surface 402, and the two ends of the rotating shaft cover 400, so as to facilitate wiping the overflowed material.

[0132] In addition, the first side wall 121a of the frame 120 and the second side wall 411a of the connecting part 410 are also filled with the filling layer 80. Since the first side wall 121a is connected between the first region 101a and the second region 101b of the first abutting surface 101, and the second side wall 411a is connected between the first sub-region 401a and the second sub-region 401b of the second abutting surface 401. Therefore, when the rotating shaft cover 400 and the upper cover 100 are pressed, the first side wall 121a and the second side wall 411a can be subjected to a pressing force in the Y-axis direction, so that the filling layer 80 between the first side wall 121a and the second side wall 411a can be filled enough, thereby facilitating to ensure the connection strength between the connecting part 410 and the frame 120.

[0133] For example, the material of the filling layer 80 can use a glue with low thermal expansion coefficient and high glass transition temperature, which is beneficial to reduce the deformation of the filling layer 80 itself, so as to reduce the influence on the compensation layer 60 and the appearance layer 70.

[0134] S3, processing the first splicing surface 102 and the second splicing surface 402.

[0135] Specifically, the first splicing surface 102 and the second splicing surface 402 are subjected to CNC (Computer Numerical Control) processing, polishing and the like. That is, the above-mentioned machining allowance is thinned to keep the first splicing surface 102 and the second splicing surface 402 flat and in the same plane to form a structure as shown in Figure 17

[0136] It can be understood that the precision requirement for processing the first splicing surface 102 and the second splicing surface 402 can be flexibly set based on the actual design appearance requirement, and therefore, the present application does not make special limitations thereon.

[0137] S4, coating a compensation layer 60.

[0138] Specifically, the above-mentioned polished first splicing surface 102 and second splicing surface 402 are shielded using the same material, that is, the compensation layer 60 is coated on the first splicing surface 102, the second splicing surface 402 and the filling layer 80 to compensate for the difference in surface micro-topography of different materials (that is, the upper cover 100 and the shaft cover 400 are made of different materials).

[0139] Exemplarily, the compensation layer 60 can be formed by a putty paint spraying process, a soil compensation process or a cold spraying process. The compensation layer 60 can fill the unevenness on the first splicing surface 102 and the second splicing surface 402 to further improve the flatness of the first splicing surface 102 and the second splicing surface 402.

[0140] S5, processing an appearance layer 70.

[0141] Specifically, the surface of the compensation layer 60 away from the first splicing surface 102 and the second splicing surface 402 is processed using a unified CMF scheme to form a consistent appearance effect (such as the structures shown in Figure 14 and Figure 15 ) of the first splicing surface 102 of the upper cover 100 and the second splicing surface 402 of the shaft cover 400.

[0142] Exemplarily, the outer light layer can attach different colored pigments and paints on the compensation layer 60 by a spraying process. Alternatively, it can also be formed by an anodizing process on the surface of the compensation layer 60.

[0143] On this basis, other regions (regions other than the first splicing surface 102 and the second splicing surface 402) on the upper cover 100 and the shaft cover 400 and the above-mentioned decorative cover 300 are subjected to the same processing to form an appearance effect of an integrated structure of the upper cover 100 and the shaft cover 400 and the same appearance effect as the decorative cover 300.

[0144] ​In addition, in the case that the shell assembly further comprises the third shell (i.e., the upper shell 500 and the bottom shell 600) described above, the same treatment is also performed on the third shell, so that the upper shell 500 and the bottom shell 600 both form the same appearance effect with the upper cover 100, thereby facilitating the improvement of the overall aesthetics of the electronic device 01.

[0145] In the description of the present specification, a specific feature, structure, material or characteristic can be combined in any one or more embodiments or examples in an appropriate manner.

[0146] The above is merely specific implementation of the present application, but 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 range 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. A housing assembly, characterized by, The shell assembly comprises: a first shell comprising a cover and a frame fixed to one side surface of the cover and extending along the edge of the cover; a part of the frame away from the surface of the cover forms a first abutting surface, and a part of the outer surface of the frame forms a first splicing surface; a second shell comprising a fixed part and a connecting part, the connecting part having a second abutting surface, and a part of the outer surface of the connecting part forms a second splicing surface, the first abutting surface and the second abutting surface are matched with each other, and the first splicing surface and the second splicing surface are flush with each other; the fixed part is matched with and fixedly connected to the cover; a compensation layer covering the first splicing surface and the second splicing surface; an appearance layer covering the compensation layer.

2. The housing assembly of claim 1, wherein, The shell assembly further comprises a filling layer arranged between the first abutting surface and the second abutting surface, and the compensation layer covers the first splicing surface, the filling layer, and the second splicing surface.

3. The housing assembly of claim 2, wherein, The material of the filling layer is an adhesive material.

4. The housing assembly of claim 1, wherein, The appearance layer covers the outer surfaces of the first shell and the second shell.

5. The housing assembly of any one of claims 1-4, wherein, One of the frame and the connecting part is provided with a protrusion, and the other of the frame and the connecting part is provided with a recess, the protrusion and the recess are arranged between the first abutting surface and the second abutting surface, and the protrusion extends into the recess.

6. The housing assembly of claim 5, wherein, The recess is formed in the first abutting surface, the first abutting surface comprises a first region and two second regions, the first region is arranged between the two second regions along the extension direction of the frame, and the first region is the bottom surface of the recess.

7. The housing assembly of any one of claims 1-4, wherein, The second abutting surface comprises a third region and a fourth region, the third region and the fourth region are distributed along the thickness direction of the frame, the third region is arranged on the side of the fourth region close to the inside of the frame, the third region abuts against the first abutting surface, and the fourth region is provided with a filling layer between the first abutting surface.

8. The housing assembly of any one of claims 1-4, wherein, The connecting part further comprises a third abutting surface connected to the second abutting surface, and the third abutting surface abuts against the inner wall of the frame.

9. The housing assembly of any one of claims 1-4, wherein, The fixed part comprises a first part and a second part, the first part is matched with and fixedly connected to the cover, and the connecting part wraps the second part.

10. The housing assembly of claim 9, wherein, There is a gap between the opposite surfaces of the connecting part and the second part.

11. The housing assembly of any one of claims 1-4, wherein, The shell assembly further comprises a third shell and a rotating shaft seat, one of the second shell and the third shell is fixedly connected to the rotating shaft seat, and the other of the second shell and the third shell is rotationally connected to the rotating shaft seat.

12. The housing assembly of claim 11, wherein, The outer surface of the third shell is covered with the appearance layer.

13. The housing assembly of claim 11, wherein, The rotating shaft seat is provided with two, and one rotating shaft seat is arranged at each end of the second shell along the length direction, and the length direction of the second shell is parallel to the rotation axis of the rotating shaft seat.

14. An electronic device, comprising: The shell assembly comprises: a display screen; a shell assembly according to any one of claims 1-13, and the display screen is fixedly connected to the shell assembly.

15. The electronic device of claim 14, wherein, The shell assembly comprises a third shell, which is rotationally connected with the second shell of the shell assembly; and the electronic device comprises a keyboard, which is arranged on the third shell.

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