Housing assembly and electronic device

Abstract

The present application provides a shell assembly and an electronic device. The shell assembly includes a first shell, a second shell and a fastening assembly. The first shell and the second shell are interlocked and connected by the fastening assembly. The fastening assembly includes an external threaded member and an internal threaded member. The axis of the external threaded member extends along a first direction. The first shell is provided with a mounting hole. At least part of the internal threaded member is located in the mounting hole, and a first gap is provided between the outer wall of the part of the internal threaded member located in the mounting hole and the inner wall of the mounting hole. A first limiting structure is provided between the first shell and the internal threaded member. The first limiting structure is used to limit the absolute value of the rotation angle of the internal threaded member relative to the first shell to be less than or equal to a preset angle, and to allow the internal threaded member to move relative to the first shell along a preset trajectory. The second shell is provided with a through hole. A part of the external threaded member passes through the through hole and is threadedly connected to the internal threaded member. The shell assembly and the electronic device provided by the present application can take into account both aesthetics and manufacturing costs.

Description

Technical Field

[0001] The present application relates to the field of electronic equipment, and in particular to a housing assembly and an electronic equipment. Background Art

[0002] With the development of society, the exquisite appearance of electronic devices and other products has become an increasingly important factor affecting consumer purchases. However, electronic devices with exterior screws are prone to screw eccentricity problems, which affects the aesthetics of the electronic devices. If more stringent tolerance standards (i.e., narrowing the tolerance range of each link) are adopted to reduce the risk of the above problems, it is necessary to control the production and assembly process of at least the shell components in the electronic devices more accurately, stably and efficiently, and it may also be necessary to use more sophisticated equipment, which will increase manufacturing costs. Therefore, it is difficult for current shell components and electronic devices to balance aesthetics and manufacturing costs. Summary of the invention

[0003] The present application provides a housing assembly and an electronic device, which improve the problem that existing housing assemblies and electronic devices have difficulty in balancing aesthetics and manufacturing costs.

[0004] In order to achieve the above objectives, this application adopts the following technical solutions:

[0005] In a first aspect, a housing assembly is provided, which comprises a first housing, a second housing and a fastening assembly. The first housing and the second housing are interlocked and connected by the fastening assembly. The fastening assembly comprises an external threaded member and an internal threaded member. The axis of the external threaded member extends along a first direction. The first housing is provided with a mounting hole. At least part of the internal threaded member is located in the mounting hole, and a first gap is provided between the outer wall of the part of the internal threaded member located in the mounting hole and the inner wall of the mounting hole. A first limiting structure is provided between the first housing and the internal threaded member. The first limiting structure is used to limit the absolute value of the rotation angle of the internal threaded member relative to the first housing to be less than or equal to a preset angle, and to allow the internal threaded member to move relative to the first housing along a preset trajectory. Wherein, the preset angle is less than 360°. The second housing is provided with a through hole that penetrates itself along the axial direction of the mounting hole. At least part of the external threaded member passes through the through hole and is threadedly connected to the internal threaded member to fix the second housing to the first housing.

[0006] The housing assembly provided in the embodiment of the present application changes the inherent mode of fixed installation of the internal threaded member on the first housing, and changes the connection mode between the internal threaded member and the mounting hole from fixed connection to clearance fit, so that at least part of the internal threaded member can still move relative to the first housing after being installed in the mounting hole. In addition, the housing assembly provided in the embodiment of the present application also sets a first limiting structure between the first housing and the internal threaded member, so that the internal threaded member can only move relative to the first housing along a preset trajectory in the mounting hole, and cannot rotate more than 360° relative to the first housing, so that the existence of the first gap between the internal threaded member and the mounting hole will not affect the threaded connection between the internal threaded member and the external threaded member. In this way, during the assembly process of the first housing and the second housing, even if the through hole and the mounting hole have a problem of misalignment due to machining errors, since the internal threaded member has a certain degree of mobility, the internal threaded member can also change its position driven by the external threaded member until it is coaxial with the external threaded member. Since the position of the external threaded part is generally determined by the position of the through hole on the second shell in the above process, the electronic device provided by the embodiment of the present application can be used, and the position of the internal threaded part on the first shell can be dynamically adjusted with the position of the through hole on the second shell, which can eliminate the adverse effects of the accumulated tolerance of the dimensional chain on the position of the external threaded part in the shell assembly to a certain extent. In this way, during assembly, as long as the coaxiality of the external threaded part and the through hole is ensured, there is no need to consider other factors, so that after the first shell and the second shell are assembled, the external threaded part is not prone to eccentricity, which greatly reduces the difficulty of assembling the first shell and the second shell, as well as the risk of eccentricity of the external threaded part, and can also reduce the occurrence of the phenomenon of assembly deviation after the first shell and the second shell are connected due to the misalignment of the through hole and the mounting hole, or the misalignment of the external threaded part and the internal threaded part. The above-mentioned non-eccentricity refers to the inability to recognize that the external threaded part and the through hole are not coaxial through the human eye.

[0007] In addition, the use of the housing assembly provided in the embodiment of the present application does not require more accurate, stable and efficient control of the production and assembly process of the housing assembly, nor does it require the use of more sophisticated equipment, which is not easy to increase the manufacturing cost, and helps to improve the yield of the housing assembly, thereby possibly reducing the manufacturing cost to a certain extent. Therefore, the housing assembly provided in the embodiment of the present application can take into account both aesthetics and manufacturing costs to a certain extent.

[0008] In combination with the first aspect, in certain implementations of the first aspect, the mounting hole is a blind hole, and the entire internal threaded member is located in the mounting hole.

[0009] The mounting hole adopts a blind hole structure, and the internal threaded part is limited in its axial position by sliding contact with the bottom surface of the blind hole or other structures in the blind hole, which can make the structure of the internal threaded part and the first shell simple and easy to design and process.

[0010] In combination with the first aspect, in certain implementations of the first aspect, the first shell includes a first part and a second part. A first hole body is provided on the first part. The first hole body runs through two sides of the first part that are arranged opposite to each other in the first direction. The second part is located on a side of the first part that is away from the second shell body, and a target part of the second part blocks the hole opening of the first hole body away from the second shell body. The target part and the inner wall of the first hole body form a mounting hole. The above-mentioned target part is a part of the second part used to block the hole opening of the first hole body.

[0011] Compared with the blind hole located in the integrally formed first shell, the installation of the internal threaded part is facilitated.

[0012] In combination with the first aspect, in certain implementations of the first aspect, the first shell includes a first part and a second part. The second part is located on a side of the first part away from the second shell, and a first space is formed between the second part and the first part. The mounting hole is located in the first part, and the mounting hole is connected to the first space. The first part and / or the second part is provided with a second limiting structure. The second limiting structure is used to prevent the part of the internal threaded member provided in the mounting hole from escaping from the mounting hole.

[0013] The second limiting structure in this embodiment can be located on the first part, or on the second part, or one part is located on the first part and the other part is located on the second part. When the second limiting structure is located on the first part, the second limiting structure can be located inside the mounting hole or outside the mounting hole, which can be determined according to the use requirements. The first shell adopts the solution provided by this embodiment, so that the size of the internal threaded part is not limited by the thickness of the first part, which can make the size of the internal threaded part smaller, which helps to save costs and facilitates the installation of the internal threaded part.

[0014] In combination with the first aspect, in some implementations of the first aspect, the second limiting structure is located in the first space.

[0015] Compared with the second limiting structure being located in the mounting hole, this not only facilitates the processing of the second limiting structure, but also ensures that the second limiting structure does not occupy the space of the mounting hole, thereby allowing the internal threaded component to have a larger movable space.

[0016] In combination with the first aspect, in certain implementations of the first aspect, the internal threaded member includes a threaded portion and a limiting portion. The threaded portion has an internal thread for threaded connection with the external threaded member. At least a portion of the threaded portion is located in the mounting hole, and a first gap is formed between the portion of the threaded portion located in the mounting hole and the inner wall of the mounting hole. The limiting portion is connected to the threaded portion, and at least a portion of the limiting portion protrudes from the peripheral side wall of the threaded portion. The limiting portion is located in the first space, and is limitedly matched with the second limiting structure. The limiting portion is connected to the threaded portion, and at least a portion of the limiting portion protrudes from the outer wall of the threaded portion, and the limiting portion is limitedly matched with the second limiting structure.

[0017] With the solution provided in this embodiment, the second limiting structure and the limiting portion are both located outside the mounting hole, making it easy to observe the relative positions of the two and thus facilitating assembly.

[0018] In combination with the first aspect, in certain implementations of the first aspect, the first part is provided with a groove on a side facing the second part. The position of the groove corresponds to the position of the mounting hole, and the groove is connected to the mounting hole. The second part closes the notch of the groove. The inner wall of the groove and the portion of the second part that closes the notch enclose the first space. With this structure, the structure is simple and easy to prepare.

[0019] In combination with the first aspect, in certain implementations of the first aspect, the second limiting structure includes a clamping portion protruding from a side of the first part away from the second shell. A plurality of clamping portions are provided. The plurality of clamping portions are arranged at intervals around the mounting hole and are respectively engaged with the limiting portion.

[0020] The second limiting structure adopts the solution provided in this embodiment, which has a simple structure and is easy to prepare and install the internal threaded part.

[0021] In combination with the first aspect, in certain implementations of the first aspect, the clamping portion includes a vertical portion and a transverse portion that are connected to each other, the transverse portion is spaced apart from the first portion, and the transverse portion is connected to the first portion through the vertical portion, and at least a portion of the limiting portion is located in the interval between the transverse portion and the first portion. The clamping portion adopts the solution provided in this embodiment, which has a simple structure and is easy to design and prepare. The cooperation between the transverse portion and a surface of the first portion facing the second portion can achieve the limitation of the relative position of the limiting portion to the first portion in the first direction, that is, the limitation of the relative position of the internal threaded part to the first portion in the first direction.

[0022] In combination with the first aspect, in certain implementations of the first aspect, the transverse portion and the limiting portion are clearance-matched; in the first direction, the spacing between the transverse portion and the limiting portion is less than or equal to 0.05 mm. In this way, when the internal threaded member is installed in place, the spacing between the limiting portion and the clamping portion in the first direction is small, and when the external threaded member and the internal threaded member are tightened, the connection stability between the first shell and the second shell is not easily affected by the spacing between the limiting portion and the clamping portion in the first direction.

[0023] In combination with the first aspect, in some implementations of the first aspect, the preset trajectory is located on a plane substantially perpendicular to the first direction.

[0024] The above-mentioned substantially vertical means that the plane is perpendicular to the first direction, or forms other angles with the first direction, such as 75°, 80°, etc., but the movement of the internal threaded member along any preset trajectory in the plane will not affect the threaded connection with the external threaded member. The solution provided in this embodiment is adopted to facilitate the movement of the internal threaded member.

[0025] In combination with the first aspect, in some implementations of the first aspect, the first limiting structure includes a first plug-in portion provided on the limiting portion, and a second plug-in portion provided on the first housing, the first plug-in portion and the second plug-in portion are plugged together, and there is a second gap between the first plug-in portion and the second plug-in portion on a preset track. By adopting the solution provided in this embodiment, the structure of the first limiting structure can be simple, and it is easy to prepare and assemble.

[0026] In combination with the first aspect, in some implementations of the first aspect, the preset track has at least one extension direction. In at least one extension direction of at least one preset track, the size of the second gap is greater than or equal to the size of the first gap.

[0027] By adopting the solution provided in this embodiment, at least the first plug-in portion and the second plug-in portion can be arranged without reducing the movement range of the internal threaded component relative to the first housing in at least one extension direction of at least one preset track.

[0028] In combination with the first aspect, in certain implementations of the first aspect, the mounting hole includes a first hole portion and a second hole portion. The area of ​​the cross section of the first hole portion is smaller than the area of ​​the cross section of the second hole portion. One of the orifices of the first hole portion faces the second shell. The second hole portion is located on a side of the first hole portion away from the second shell, and is connected to the first hole portion. At least part of the internal threaded member is located in the second hole portion, and the area of ​​the cross section of the part of the internal threaded member located in the second hole portion is larger than the area of ​​the cross section of the first hole portion.

[0029] That is, the mounting hole is set with a reduced diameter at one end near the second shell, and a step surface is formed between the first hole portion and the second hole portion, and the step surface can abut against the internal threaded component to prevent the internal threaded component from moving toward the side where the second shell is located. This can reduce the risk of the internal threaded component coming out of the mounting hole near the second shell after installation, and facilitate assembly.

[0030] In combination with the first aspect, in certain implementations of the first aspect, a side of the second shell facing away from the first shell has a plane and an inclined surface, and the through hole is located on the inclined surface, so as not to affect the aesthetics of the plane portion of the second shell.

[0031] In combination with the first aspect, in certain implementations of the first aspect, a distance between an outer wall of a portion of the external threaded component located in the through hole and an inner wall of the through hole is less than or equal to 0.05 mm.

[0032] In this way, the external threaded component is inserted into the through hole. Even if the external threaded component and the through hole are not coaxially arranged due to assembly tolerance, the distance between the inner wall of the through hole and the outer wall of the external threaded component is small, so precise matching can be achieved. The human eye cannot see that the external threaded component is eccentric, and it does not affect the appearance of the shell assembly and the aesthetics of the electronic device using the above shell assembly.

[0033] In combination with the first aspect, in certain implementations of the first aspect, the external threaded part has a step structure, and at least part of the step structure is located in the through hole. For example, the external threaded part can adopt a step screw, a step bolt, etc. That is, a step structure is set between the cap body and the threaded portion of the external threaded part. The length of the step structure in the first direction can be greater than, less than or equal to the length of the through hole in the first direction, which can be determined according to the needs of use. In this way, compared with the external threaded part using a body without a step structure, the presence of the step structure can play a guiding and positioning role, so that the external threaded part can be accurately aligned during assembly, which can further improve the precise positioning of the external threaded part and the through hole, and help reduce the risk of eccentricity of the external threaded part.

[0034] In a second aspect, an electronic device is provided, comprising an electronic component and a housing assembly according to any possible implementation of the first aspect, wherein a second space is formed between the first housing and the second housing, and at least part of the electronic component is located in the second space.

[0035] The technical effects corresponding to the second aspect can refer to the technical effects corresponding to the above-mentioned first aspect and any implementation method of the first aspect, and will not be repeated here.

[0036] Through the above technical solution, since the electronic device at least has all the beneficial effects of the file processing method, they will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A schematic diagram of the structure of an electronic device in an open state provided by an embodiment of the present application;

[0038] Figure 2 A schematic diagram of the structure of an electronic device in a closed state provided by an embodiment of the present application;

[0039] Figure 3 For along Figure 1 Schematic diagram of the partial cross-section structure along the AA line;

[0040] Figure 4 A schematic diagram of an exploded structure of an input part in an electronic device provided for related technology;

[0041] Figure 5 A schematic diagram of a partial structure of a C-shell in an electronic device provided in the related art;

[0042] Figure 6 A schematic diagram of a partial structure of a housing assembly provided in one embodiment of the present application;

[0043] Figure 7 For along Figure 6 Schematic diagram of the partial cross-section structure along the BB line;

[0044] Figure 8 for Figure 6 The partial structure shown is a schematic diagram of a top view of the remaining portion after removing part of the structure of the first shell;

[0045] Fig. 9 A schematic cross-sectional view of a partial structure of a housing assembly provided in another embodiment of the present application;

[0046] Fig.10 for Fig. 9 A schematic diagram of a top view of the remaining portion of the corresponding local structure after removing part of the structure of the first shell;

[0047] Fig.11 A schematic top view of a partial structure of a housing assembly provided in another embodiment of the present application;

[0048] Fig.12 A schematic top view of a partial structure of a housing assembly provided in another embodiment of the present application;

[0049] Fig.13 For along Figure 6 Schematic diagram of the partial cross-section structure of the CC line;

[0050] Fig.14 for Fig.13 A local enlarged schematic diagram of the middle A;

[0051] Fig.15 for Fig.13 A partial enlarged schematic diagram of point B in the middle;

[0052] Fig.16 A schematic cross-sectional view of a mounting hole and an internal threaded member assembly structure in a housing assembly provided in an embodiment of the present application;

[0053] Fig.17 A bottom-up structural diagram of a partial structure of an electronic device provided in one embodiment of the present application.

[0054] Description of reference numerals:

[0055] 10. Input part; 11. First housing assembly; 111. C housing; 1111. First metal housing; 1112. First plastic part; 1113. Nut; 112. D housing; 1121. Second metal housing; 1122. Second plastic part; 113. Accommodating cavity; 114. Function port; 115. Heat dissipation hole; 116. Screw; 12. Keyboard assembly; 13. Circuit board assembly; 14. Battery; 15. Touchpad;

[0056] 20. display part; 21. second housing component; 211. housing A; 212. housing B; 22. display screen;

[0057] 30. first housing; 31. mounting hole; 311. first hole portion; 312. second hole portion; 32. first gap; 33. first part; 34. second part; 35. first hole body; 36. first space;

[0058] 40, second housing; 40a, plane; 40b, inclined surface; 41, through hole;

[0059] 50. Fastening assembly; 51. External threaded member; 511. Step structure; 52. Internal threaded member; 521. Threaded portion; 522. Position limiting portion;

[0060] 60. first limiting structure; 61. first plug-in portion; 62. second plug-in portion; 63. guide portion; 64. anti-rotation plate; 65. limiting rod; 66. through hole;

[0061] 70. Second limiting structure; 71. Clamping portion; 711. Vertical portion; 712. Horizontal portion;

[0062] X, first direction. DETAILED DESCRIPTION

[0063] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0064] In the description of the present application, it should be understood that the terms "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0065] In order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second" and the like are used to distinguish the same items or similar items with substantially the same functions and effects. For example, the first limiting portion and the second limiting portion are only used to distinguish different limiting portions, and do not limit their order. Those skilled in the art can understand that the words "first", "second" and the like do not limit the quantity and execution order, and the words "first", "second" and the like do not necessarily limit them to be different.

[0066] It should be noted that, in this application, the words "in one embodiment" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described in this application as "in one embodiment" or "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of the words "in one embodiment" or "for example" is intended to present the relevant concepts in a specific way.

[0067] In this application, unless otherwise clearly specified and limited, the terms "connected", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0068] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0069] The embodiment of the present application provides an electronic device. The above electronic device can also be called a terminal (Terminal), a user equipment (User Equipment, UE), a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal, MT), etc. The specific product form of the electronic device can be a mobile phone, a tablet computer, a desktop computer, a personal digital assistant (PDA), a laptop computer, an ultra-mobile personal computer (Ultra~mobile Personal Computer, UMPC), a wearable device (such as headphones, smart bracelets, smart glasses, virtual reality (Virtualreality, VR) / augmented reality (Augmented reality, AR) equipment, etc.), vehicle-mounted equipment, household appliances (such as electric toothbrushes, flashlights, etc.), game equipment (such as game controllers, game joysticks, game mice, etc.), multimedia players, etc., which have a shell and the fasteners of the shell are exposed. The embodiment of the present application does not specifically limit the form of the electronic device.

[0070] For ease of understanding and description, the structure of the electronic device provided in the embodiment of the present application is described below by taking a laptop computer as an example.

[0071] It is understood that the structure illustrated in the embodiment of the present application does not constitute a specific limitation on the laptop computer. In other embodiments of the present application, the laptop computer may include more or fewer components than shown in the figure, or combine some components, or separate some components, or arrange the components differently.

[0072] Figure 1 This is a schematic diagram of the structure of an electronic device in an open state provided by an embodiment of the present application. Figure 2 This is a schematic structural diagram of an electronic device in a closed state provided by an embodiment of the present application.

[0073] like Figure 1 As shown, the electronic device includes an input portion 10 and a display portion 20. The input portion 10 and the display portion 20 are generally rotatably connected via a hinge structure. The input portion 10 and the display portion 20 at one end close to the hinge structure can rotate around the hinge structure, so that the input portion 10 and the display portion 20 at one end away from the hinge structure are relatively close to or relatively away from each other, so that the laptop computer can be in different states such as closed or open. When the laptop computer is in an open state (such as Figure 1 As shown in FIG. 1 , the display portion 20 and the input portion 10 form an angle greater than 0°. When the notebook computer is in a closed state (as shown in FIG. 1 ), the display portion 20 and the input portion 10 form an angle greater than 0°. Figure 2 As shown in the figure, the display part 20 covers the input part 10, and the display surface of the display part 20 is opposite to the keyboard surface of the input part 10.

[0074] The above-mentioned hinge structure generally has only one rotation axis, which generally extends along the length direction of the laptop. In some embodiments, the hinge structure can also be provided with multiple rotation axes, such as a laptop that can be flipped left and right, and the display part 20 can rotate 360° around a fulcrum on the input part 10.

[0075] The input part 10 has a first housing component 11, the display part 20 has a second housing component 21, and the first housing component 11 and the second housing component 21 are rotatably connected via a rotating shaft structure.

[0076] Specifically, Figure 1 As shown, the display portion 20 includes a second housing component 21 and a display screen 22 located in the second housing component 21 . Figure 3 For along Figure 1 The schematic diagram of the partial cross-section structure of the AA line. Figure 3As shown, the second housing component 21 includes at least an A shell 211 and a B shell 212. The A shell 211 and the B shell 212 can be respectively composed of one component or multiple components, which can be determined according to the use requirements. The A shell 211 and the B shell 212 cover each other, and the A shell 211 and the B shell 212 jointly define a storage space for accommodating the display screen 22. The A shell 211 can be a hollow structure with an opening at one end, and the B shell 212 can be a plate-like structure. The B shell 212 covers the open side of the A shell 211, so that the A shell 211 and the B shell 212 jointly define a storage space; the A shell 211 and the B shell 212 can also be hollow structures with an opening at one side, and the open side of the A shell 211 covers the open side of the B shell 212. Among them, the B shell 212 is provided with an opening for exposing the display surface of the display screen 22. When the laptop computer is in a closed state, the B shell 212 contacts the input part 10 and is at least partially hidden in the laptop computer. When the notebook computer is in a closed state, the A shell 211 is exposed to the outside, and a logo such as the product name of the electronic device can be set on the outer wall of the A shell 211.

[0077] The display screen 22 is an output device of the notebook computer, used to display images, videos, etc. The display screen 22 may include, but is not limited to, at least one of a thin film transistor (TFT) display screen, an organic light-emitting diode (OLED) display screen, a mini organic light-emitting diode (MID) display screen, a micro organic light-emitting diode (MID) display screen, a quantum dot light emitting diode (QLED) display screen, etc. At least part of the display screen 22 is located in the accommodation space formed by the A shell 211 and the B shell 212, and the display surface of the display screen 22 is exposed outside the second housing component 21 through an opening located in the B shell 212.

[0078] like Figure 1 and Figure 3As shown, the input part 10 includes a first housing component 11 and a keyboard component 12, a circuit board component 13, a battery 14, a touch pad 15, etc., which are all arranged on the first housing component 11. Among them, the first housing component 11 includes at least a C housing 111 and a D housing 112. The C housing 111 and the D housing 112 can be composed of one component or multiple components respectively, which can be determined according to the use requirements. The C housing 111 and the D housing 112 cover each other, and the two together define a receiving cavity 113. Specifically, the D housing 112 can be a hollow structure with an opening at one end, and the C housing 111 can be a plate-like structure, and the C housing 111 covers the open side of the D housing 112, so that the C housing 111 and the D housing 112 jointly define the receiving cavity 113; the C housing 111 and the D housing 112 can also be hollow structures with an opening on one side, and the open side of the C housing 111 covers the open side of the D housing 112. The C shell 111 is provided with holes for at least partially exposing the keyboard assembly 12, the touch pad 15 and other components, and the C shell 111 is in contact with the display portion 20 when the notebook computer is in a closed state, and is at least partially hidden in the electronic device. The D shell 112 is exposed to the outside when the notebook computer is in a closed state. Figure 2 As shown, the side walls of the C shell 111 and / or the D shell 112 may also be provided with functional openings 114 for exposing or passing through structures such as interfaces, and heat dissipation holes 115 for heat dissipation.

[0079] A portion of the keyboard assembly 12 is located in the accommodating cavity 113 defined by the C shell 111 and the D shell 112 , and a portion of the keyboard assembly 12 is exposed through a hole on the C shell 111 .

[0080] A portion of the touchpad 15 is located in the accommodating cavity 113 of the first housing component 11, and another portion is exposed outside the C-shell 111 through a hole on the C-shell 111 for the user to press. The touchpad 15 allows the user to control the pointer on the screen by moving the finger on a smooth surface, aiming to facilitate user operation without an external mouse. In addition to being able to move the pointer, the touchpad 15 can also realize other functions, such as single-click, right-click, multi-touch, gesture recognition, pressure sensing, etc.

[0081] The circuit board assembly 13 is fixed in the first housing assembly 11 by means of plugging, clamping, screw connection, welding, etc. The circuit board assembly 13 is electrically connected to the keyboard assembly 12 and the touch pad 15, respectively, and is also connected to the display screen for communication. The above communication connection can be a wired connection through a structure such as a wire or a flexible circuit board, or a wireless connection through a wireless communication module. The circuit board assembly 13 is used to receive instructions and data input by the keyboard assembly 12 and the touch pad 15, and control the operation of the corresponding module according to the above instructions to display the corresponding content on the display screen.

[0082] The circuit board assembly 13 generally includes one or more circuit boards. Each circuit board can be a hard circuit board, a flexible circuit board or a combination of hard and soft circuit boards. One or more electronic components can be set on each circuit board. The above-mentioned electronic components include but are not limited to control chips, graphics processing units (GPUs), memories, power modules, wireless communication modules, mobile communication modules, audio modules, sensor modules, charging management modules, power management modules, batteries, display screens, antennas, wireless communication modules, audio modules, speakers (i.e., loudspeakers), microphones, headphone jacks, touch pads, keyboards, cameras, universal serial bus (USB) interfaces, etc.

[0083] Among them, the sensor module includes but is not limited to pressure sensor, gyroscope sensor, air pressure sensor, magnetic sensor, acceleration sensor, distance sensor, proximity light sensor, fingerprint sensor, temperature sensor, touch sensor, ambient light sensor, bone conduction sensor, etc.

[0084] At least one circuit board is provided with a control chip, which may include but is not limited to any one of a central processing unit (CPU), a multimedia application processor (MaP), and the like.

[0085] The battery 14 is also located in the accommodating cavity 113 and is electrically connected to the circuit board assembly 13 for providing power to the circuit board assembly 13 and the keyboard assembly 12 , the touch pad 15 , the display screen, etc. connected to the circuit board assembly 13 .

[0086] In order to ensure a stable connection between the C shell 111 and the D shell 112, the C shell 111 and the D shell 112 are generally locked by screws. During preparation, structures for screws to pass through and screw connection are preset on the C shell 111 and the D shell 112. Generally, a through hole (also called a screw hole) is provided on the D shell 112 that passes through itself in the thickness direction, and the hole wall of the screw hole is a smooth surface without threads. A threaded structure for threaded connection with the screw is provided on the C shell 111. During locking, the screw rod of the screw is passed through the screw hole on the D shell 112 and is threadedly connected to the threaded structure on the C shell 111, so that the nut of the screw is exposed outside the D shell 112.

[0087] Figure 4 A schematic diagram of the exploded structure of the input part in the electronic device provided in the related art. Figure 5 A schematic diagram of the partial structure of a C-shell in an electronic device provided in the related art.

[0088] like Figure 4 As shown, in the related art, the C shell 111 includes a first metal shell 1111 and a first plastic part 1112, and the first plastic part 1112 is fixedly connected to the first metal shell 1111 by means of gluing, clamping, plugging, etc. The D shell 112 includes a second metal shell 1121 and a second plastic part 1122, and the second plastic part 1122 is fixedly connected to the second metal shell 1121 by means of gluing, clamping, plugging, etc. The D shell 112 is provided with a screw hole that penetrates itself in the thickness direction for the screw 116 to pass through.

[0089] like Figure 5 As shown, a hole is formed on the first plastic part 1112, the hole opening toward the D shell 112, and a nut 1113 is embedded in the hole. The inner wall of the nut 1113 is provided with a thread structure. The screw passes through the screw hole and is threadedly connected with the nut 1113.

[0090] The above-mentioned nut 1113 is generally made of metal material, and barbs or other structures can be set on the outer wall of the nut 1113 to increase its anchoring force in the first plastic part 1112. When the nut 1113 is installed, a tool can be used to ensure that the nut is stably connected to the inner wall of the hole after being inserted into the above-mentioned hole. If a heat staking or thermal rivet method is used, when the nut 1113 is installed, the hole area of ​​the first plastic part 1112 is partially softened with the help of a heating tool, and then the nut 1113 is fixed in place by pressure. After cooling, the softened area of ​​the first plastic part 1112 hardens and is tightly combined with the nut 1113.

[0091] In the preparation process of the C shell 111, the first plastic part 1112 and the nut 1113 are generally prepared first, and then the nut 1113 and the first plastic part 1112 are assembled by hot melting, and finally the first metal shell 1111 and the first plastic part 1112 equipped with the nut 1113 are assembled together. In the above assembly process, each link has a certain processing or assembly tolerance, which may result in certain deviations in the position of the first plastic part 1112, the position of the nut 1113, and the position of the connection point between the first metal shell 1111 and the first plastic part 1112 of the assembled C shell 111.

[0092] In addition, due to the existence of processing tolerances, the positions of the screw holes on the D shell 112 may also deviate. Even if there is no deviation in the positions of the screw holes on the D shell 112, after the D shell 112 and the C shell 111 are snapped together, due to the existence of assembly deviations, position deviations of the nut 1113 on the C shell and other tolerances, the screw holes on the D shell 112 may not necessarily be coaxially arranged with the threaded holes of the nut 1113, and there may be a certain degree of misalignment between the two.

[0093] Due to the existence of the above-mentioned numerous tolerances, it is difficult to ensure that the position of the screw 116 connecting the D shell 112 and the C shell 111 meets the assembly requirements with high precision by using the solution of the related technology, and the eccentricity of the screw 116 is prone to occur, and the above-mentioned screw 116 is exposed, which easily affects the appearance of the electronic device. The eccentricity of the above-mentioned screw 116 means that the screw 116 and the screw hole are not coaxially arranged and the distance between the axes of the two is large. This situation can be identified by the human eye without the help of tools.

[0094] With the development of society, the exquisite appearance of electronic devices has become an increasingly important factor affecting consumer purchases. The screw 116 connecting the D shell 112 and the C shell 111 is an important appearance screw of the electronic device. With the above production and assembly method, the screw 116 is prone to eccentricity, which is easy to be complained by consumers, affecting the sale of electronic devices. If a more stringent tolerance standard (i.e., narrowing the tolerance range of each link) is adopted to reduce the risk of the above problems, it is necessary to control the production and assembly process of at least the shell component in the electronic device (such as the component formed after the D shell 112 and the C shell 111 are connected) more accurately, stably and efficiently. In this way, if more precise equipment is not used, according to the original production method, due to the improvement of the inspection standard, some parts or finished products that were originally identified as qualified products will be identified as unqualified products, resulting in a decrease in the yield of the electronic device and an increase in the manufacturing cost. If more precise equipment is used to meet more precise inspection standards, the manufacturing cost will also increase, and it is easy to increase the sales cost of the electronic device. Therefore, it is difficult for the current shell components and electronic devices to take into account both aesthetics and manufacturing costs.

[0095] In order to at least partially improve the above problems, the embodiments of the present application provide a housing assembly and an electronic device. The housing assembly and the electronic device change the nut originally fixedly installed on the C housing to be movably arranged on the C housing. In this way, when the screw is installed, if the nut and the screw are not aligned (that is, the two are not coaxial), the nut can be moved into place by a screw or other tool so that the position of the nut is aligned with the position of the screw or the screw hole, and then the screw and the nut are tightened. Since the position of the screw is generally determined by the position of the screw hole, the position of the nut on the C housing can be adjusted with the position of the screw hole on the D housing by using the electronic device provided by the embodiment of the present application. In this way, the risk of eccentricity of the screw caused by the misalignment of the screw hole and the nut can be reduced, and it has the characteristics of self-adaptation and self-adjustment, which can reduce the risk of eccentricity of the screw to a certain extent, and improve the appearance of the housing assembly and the electronic device. In addition, by using the housing assembly and the electronic device provided by the embodiments of the present application, there is no need to control the production and assembly process of the housing assembly more accurately, stably and efficiently, nor is it necessary to use more sophisticated equipment, which is not easy to increase the manufacturing cost, and can take into account both the aesthetics and the manufacturing cost.

[0096] Figure 6 This is a schematic diagram of the partial structure of a shell assembly provided in one embodiment of the present application, in which the first shell and the second shell are both schematic diagrams of the partial structure.

[0097] like Figure 6 As shown, the housing assembly provided in the embodiment of the present application includes a first housing 30, a second housing 40 and a fastening assembly 50. The first housing 30 and the second housing 40 are interlocked and connected by the fastening assembly 50. It can be understood that the first housing 30 and the second housing 40 in this embodiment can be the above-mentioned C housing and D housing respectively when the electronic device is a laptop computer, and can also be the A housing and the B housing respectively when the A housing and the B housing of the laptop computer are also connected by the fastening assembly.

[0098] Figure 7 For along Figure 6 The schematic diagram of the partial cross-section structure of the BB line in the middle shows only Figure 6 Partial structure of the first shell.

[0099] like Figure 7 As shown, the fastening assembly 50 includes an external threaded member 51 and an internal threaded member 52. The external threaded member 51 is a member with a threaded outer wall, and may be a bolt, a screw, a screw, a screw, etc. The internal threaded member 52 is a member with an inner cavity, and the inner wall of the inner cavity is threaded, and may be a nut, a cylinder with a thread, a pipe with a thread, etc., and may be determined according to the use requirements.

[0100] The first housing 30 is provided with a mounting hole 31. The mounting hole 31 may be a through hole or a blind hole. In some embodiments, the mounting hole 31 may be a hole of equal diameter. An equal diameter hole means that the inner diameter of the mounting hole 31 is always the same from one end to the other end along its own axial direction. This facilitates the design and processing of the mounting hole 31. Figure 7 As shown, in other embodiments, the mounting hole 31 may be a variable diameter hole, such as a tapered hole, a stepped hole, an expanded hole, a necked hole, etc. Among them, the inner diameter of the tapered hole gradually increases or decreases from one end to the other end along the axial direction of the hole to form a cone. A stepped hole is also called a multi-stage hole, which refers to a hole structure in which there are one or more steps on the hole wall of a hole, and the inner diameters of two adjacent steps are different. Expanding a hole refers to expanding the hole diameter at a specific position on the basis of an existing hole to form a hole structure with a local large diameter area. A necking hole is the opposite of expanding a hole, and is a hole structure in which the diameter is reduced at a certain position of the hole to form a bottleneck-like structure.

[0101] Regardless of the type of the mounting hole 31 , one opening of the mounting hole 31 faces the second housing 40 .

[0102] At least part of the internal threaded member 52 is located in the mounting hole 31, and there is a first gap 32 between the outer wall of the part of the internal threaded member 52 located in the mounting hole 31 and the inner wall of the mounting hole 31. That is, the cross-sectional area of ​​the part of the internal threaded member 52 located in the mounting hole 31 is smaller than the cross-sectional area of ​​the mounting hole 31. The cross-sectional area refers to the cross-sectional area obtained by cutting the mounting hole 31 or the internal threaded member 52 with a plane perpendicular to the axial direction of the mounting hole 31. Due to the existence of the first gap 32, the position of the internal threaded member 52 in the mounting hole 31 is adjustable, so that when the external threaded member 51 and the internal threaded member 52 are threadedly connected, if the two are not coaxial, the internal threaded member 52 can be moved under the drive of the external threaded member 51 or other tools until it is coaxial with the external threaded member 51. The size of the above-mentioned first gap 32 determines the size of the activity space of the internal threaded member 52, which can be determined according to the use requirements. As in general, the dimension of the sum of the processing error and the assembly error between the external threaded component 51 and the internal threaded component 52 in a direction perpendicular to the axial direction of any threaded component is a, and the dimension of the first gap 32 in a direction perpendicular to the axial direction of any threaded component is b, and b should be greater than or equal to a.

[0103] A first limiting structure 60 is provided between the first housing 30 and the internal threaded member 52. The first limiting structure 60 is used to limit the absolute value of the rotation angle of the internal threaded member 52 relative to the first housing 30 to be less than or equal to a preset angle, and to allow the internal threaded member 52 to move relative to the first housing 30 along a preset trajectory. The above-mentioned preset angle is any value less than 360°, and can be equal to 0°. The preset angle can be limited according to the needs of use, as long as the rotation of the internal threaded member 52 relative to the first housing 30 within the preset range does not affect the threaded connection with the external threaded member 51. The above-mentioned preset trajectory can also be determined according to the needs of use, such as a straight trajectory or a curved trajectory. As long as it moves within this preset trajectory, the alignment of the internal threaded member 52 and the external threaded member 51 can be achieved without affecting the threaded connection between the two.

[0104] Specifically, the first limiting structure 60 can be a structure that can limit the internal threaded member 52 to only be able to rotate relative to the first housing 30 along a certain straight line direction, a curved line direction, etc., as long as it can prevent the internal threaded member 52 from rotating relative to the first housing 30 in a full circle (i.e., more than 360°), does not affect the threaded connection between the internal threaded member 52 and the external threaded member 51, and can allow the internal threaded member 52 to move relative to the first housing 30 within a certain range driven by the external threaded member 51 or other tools to achieve alignment of the internal threaded member 52 and the external threaded member 51. The above-mentioned curved line direction can be a sine line, a parabola, an irregular curve, etc., but cannot be a circular line.

[0105] It is understandable that the above-mentioned preset trajectory can be one or more, which can be determined according to the specific use requirements, as long as the alignment of the internal thread component 52 and the external thread component 51 can be achieved.

[0106] In this embodiment, the external threaded member 51 and the internal threaded member 52 are axially overlapped after being threadedly connected. When the external threaded member 51 and the internal threaded member 52 are not threadedly connected, the internal threaded member 52 can move along any selected preset track.

[0107] like Figure 7 As shown, in this embodiment, the axis of the external thread member 51 extends along the first direction X. The first direction X can be the thickness direction of the shell component or other directions that are at an angle to the thickness direction of the shell component, depending on the installation position and plane of the external thread member 51. The specific direction can be determined according to the use requirements. Figure 7 As shown, the side of the first shell 30 facing away from the second shell 40 is a plane, and the thickness direction of the shell assembly is perpendicular to the plane. The second shell 40 is a thin-walled structure, and the side of the second shell 40 facing away from the first shell 30 is an arc-shaped surface, and the through hole 41 is provided on the arc-shaped surface. At this time, the axial direction (i.e., the first direction X) of the external threaded member 51 can be perpendicular to the tangential direction of the arc-shaped surface where it is located, and is set at a non-zero angle with the thickness direction of the shell assembly. In other embodiments, if the side of the second shell 40 facing away from the first shell 30 is a plane, the axial direction of the external threaded member 51 can be perpendicular to the plane, that is, it is set along the thickness direction of the shell assembly.

[0108] The second shell 40 is provided with a through hole 41 penetrating through the second shell 40 along the first direction X. At least a portion of the external threaded member 51 passes through the through hole 41 and is threadedly connected to the internal threaded member 52. Generally, in this embodiment, at least a portion of the external threaded member 51 is exposed outside the second shell 40. The above-mentioned exposure outside the second shell 40 means that at least a portion of the external threaded member 51 can be seen from the outside of the second shell 40 (i.e., the side of the second shell 40 facing away from the first shell 30). In other embodiments, the external threaded member 51 may not be exposed outside the second shell 40, such as if a protective layer is provided on the outer surface of the second shell 40, etc., which can be determined according to the needs of use.

[0109] The external threaded member 51 generally has a threaded portion with an external thread and a cap body without a thread. Generally, the inner diameter of the through hole 41 is larger than the outer diameter of the threaded portion in the external threaded member 51, but the area of ​​the cross section of the through hole 41 is smaller than the area of ​​the cap body cross section of the external threaded member 51. In some embodiments, the external threaded member 51, in addition to the above-mentioned threaded portion and the cap body, also includes a connecting portion connecting the threaded portion and the cap body, and the connecting portion may be provided with a thread or may not be provided with a thread. The connecting portion may be inserted into the through hole 41 or may not be inserted into the through hole 41 according to the use needs. If the connecting portion does not need to be inserted into the through hole 41, then the part of the above-mentioned external threaded member 51 passing through the through hole 41 means that at least part of the threaded portion in the external threaded member 51 passes through the through hole 41. At this time, if the thickness of the second shell 40 is large, a part of the threaded portion may be located in the through hole 41, and the other part passes through the through hole 41 and is threadedly connected to the internal threaded member 52. If the connecting part needs to be inserted into the through hole 41, a part of the external threaded part 51 passing through the through hole 41 may be that the connecting part is located in the through hole 41 and the threaded part passes through the through hole 41; or a part of the connecting part is located in the through hole 41 and the other part of the connecting part and the threaded part pass through the through hole 41.

[0110] For ease of description, the external threaded member 51 is a screw, and the internal threaded member 52 is a nut, and the assembly principle of the housing assembly provided in the embodiment of the present application is described:

[0111] First, prepare the mounting hole 31 on the first shell 30 and install the nut, and prepare the through hole 41 on the second shell 40, then snap the first shell 30 and the second shell 40 together, and insert the screw into the through hole 41. In the process of inserting the screw into the through hole 41, if the nut is initially misaligned with the screw (i.e., the two are not coaxially arranged), the screw can be inserted at an angle so that the tip of the screw (away from the end of the nut) enters the nut, and then the screw is adjusted. During this process, the screw can drive the nut to move, and the nut and the screw are set coaxially when the screw is adjusted. Then rotate the screw until the screw and the nut are tightened to the specified tightening degree to ensure that the connection between the first shell 30 and the second shell 40 is stable and the external threaded part 51 is not easy to loosen.

[0112] The shell assembly provided in the embodiment of the present application changes the inherent mode of fixed installation of the internal threaded component 52 on the first shell 30, and changes the connection mode between the internal threaded component 52 and the mounting hole 31 from a fixed connection to a clearance fit, so that at least a portion of the internal threaded component 52 can still move relative to the first shell 30 after being installed in the mounting hole 31.

[0113] In addition, the shell assembly provided in the embodiment of the present application is also provided with a first limiting structure 60 between the first shell 30 and the internal threaded component 52, so that the internal threaded component 52 can only move relative to the first shell 30 along a preset trajectory in the mounting hole 31, and cannot rotate more than 360° relative to the first shell 30, so that the existence of the first gap 32 between the internal threaded component 52 and the mounting hole 31 will not affect the threaded connection between the internal threaded component 52 and the external threaded component 51.

[0114] In this way, during the assembly process of the first shell 30 and the second shell 40, even if the through hole 41 and the mounting hole 31 are not coaxial due to processing errors, since the internal threaded part 52 has a certain degree of mobility, the internal threaded part 52 can also change its own position under the drive of the external threaded part 51 until it is coaxial with the external threaded part 51.

[0115] Since in the above process, the position of the external threaded part 51 is generally determined by the position of the through hole 41 on the second shell 40, the position of the internal threaded part 52 on the first shell 30 can be adjusted according to the position of the through hole 41 on the second shell 40 using the electronic device provided in the embodiment of the present application, which can eliminate the adverse effects of the accumulated dimensional chain tolerance on the position of the external threaded part 51 in the shell assembly to a certain extent.

[0116] In this way, during assembly, as long as the coaxiality of the external threaded component 51 and the through hole 41 is ensured, other factors do not need to be considered, and the external threaded component 51 is not prone to eccentricity after the first shell 30 and the second shell 40 are assembled, which greatly reduces the difficulty of assembling the first shell 30 and the second shell 40, as well as the risk of eccentricity of the external threaded component 51, and can also reduce the occurrence of assembly deviation of the first shell 30 and the second shell 40 after connection due to the misalignment of the through hole 41 and the mounting hole 31, or the misalignment of the external threaded component 51 and the internal threaded component 52. The above-mentioned non-eccentricity means that the human eye cannot recognize that the external threaded component 51 is not coaxial with the through hole 41.

[0117] In addition, the shell assembly provided in the embodiment of the present application does not need to be more accurately, stably and efficiently controlled in the production and assembly process of the shell assembly, nor does it need to use more sophisticated equipment, which is not easy to increase the manufacturing cost, and helps to improve the yield of the shell assembly, thereby possibly reducing the manufacturing cost to a certain extent. Therefore, the shell assembly provided in the embodiment of the present application can take into account both aesthetics and manufacturing costs to a certain extent. In some embodiments, the preset trajectory is located on a plane substantially perpendicular to the first direction X.

[0118] The above-mentioned substantially vertical means that the plane is perpendicular to the first direction X, or forms other angles with the first direction X, such as 75°, 80°, etc., but the movement of the internal threaded member along any preset trajectory in the plane will not affect the threaded connection with the external threaded member.

[0119] The solution provided in this embodiment is adopted to facilitate the movement of the internal threaded part.

[0120] The first limiting structure 60 can be any structure that can achieve the above functions. Figures 8 to 10 To understand. Figure 8 for Figure 6 The partial structure shown is a schematic diagram of a top view of the remaining part after removing part of the structure of the first shell, Fig. 9 This is a schematic cross-sectional view of a partial structure of a housing assembly provided in another embodiment of the present application. Fig.10 for Fig. 9 The corresponding local structure is a schematic diagram of a top view of the remaining part after removing part of the structure of the first shell, Fig.11 This is a schematic top view of a partial structure of a housing assembly provided in another embodiment of the present application. Fig.12 This is a schematic diagram of a partial structure of a housing assembly provided in another embodiment of the present application. It should be noted that: Figures 7 to 11 In the structure shown, the first housing 30 includes a first portion 33 and a second portion 34. All or most of the mounting holes 31 are located in the first portion 33. The second portion 34 is located on a side of the first portion 33 away from the second housing 40. Figure 8 and Fig.10 The structure shown in the figure removes the second portion 34. It is understood that in other embodiments, the first housing 30 may be an integrally formed structure.

[0121] like Figure 8 As shown, in some embodiments, a portion of the internal threaded member 52 is located outside the mounting hole to form a limiting portion 522. The first limiting structure 60 includes a first plug-in portion 61 connected to the limiting portion 522, and a second plug-in portion 62 connected to the first portion 33. The first plug-in portion 61 and the second plug-in portion 62 are plug-fitted, and there is a second gap between the first plug-in portion 61 and the second plug-in portion 62 on a preset trajectory. One of the first plug-in portion 61 and the second plug-in portion 62 can be a convex portion, and the other can be a groove that is plug-fitted with the convex portion, which can be determined according to the specific needs of use. By adopting the solution provided in this embodiment, the structure of the first limiting structure 60 can be simple, and it is easy to prepare and assemble. As shown Figure 8 As shown, in some embodiments, the first plug-in portion 61 is a notch formed at the edge of the limiting portion 522, and the second plug-in portion 62 is a convex portion protruding from the first portion 33 toward the second portion 34. At least part of the convex portion is located in the notch. The above-mentioned notch can be set to one or more, which can be determined according to the specific use requirements. Figure 8In the figure, there are 4 notches, which are arranged around the mounting hole 31 and spaced apart. Two of the notches are arranged opposite to each other in the Y1 direction in the figure, and the other two notches are arranged opposite to each other in the Y2 direction, and the Y2 direction is perpendicular to the Y1 direction. At the same time, there are 4 protrusions. Two of them are arranged opposite to each other in the Y1 direction, and are respectively movably inserted into the two notches at the corresponding positions; the other two notches are arranged opposite to each other in the Y2 direction, and are respectively movably inserted into the two notches at the corresponding positions. In this way, with the cooperation of the notches and the protrusions, the internal threaded member 52 can move relative to the mounting hole 31 along the Y1 direction or the Y2 direction.

[0122] In some embodiments, the preset track has at least one extension direction. In at least one extension direction of at least one preset track, the size of the second gap is greater than or equal to the size of the first gap.

[0123] Since the preset track can be a straight track or a curved track. When the preset track is a straight track, the extension direction of the preset track refers to the length direction of the straight track. When the preset track is a curved track, if the preset track is located on the same plane, the preset track has two extension directions, one of which is the length direction of the preset track, and the other is the width direction of the preset track; if the preset track is a three-dimensional structure, the preset track has three extension directions, one of which is the length direction of the preset track, another is the width direction of the preset track, and another is the thickness direction of the preset track.

[0124] Since there can be one or more preset trajectories, there are multiple options for at least one extension direction of at least one preset trajectory according to the use requirements. Figure 8 In the illustrated solution, there are two preset tracks, one of which extends in the Y1 direction, and the other extends in the Y2 direction. At this time, the size of the second gap in at least one extending direction of at least one preset track is greater than or equal to the size of the first gap, including but not limited to the following situations: the first situation, in both the Y1 direction and the Y2 direction, the size of the second gap is greater than the size of the first gap; the second situation, in only the Y1 direction, the size of the second gap is greater than the size of the first gap; the third situation, in only the Y2 direction, the size of the second gap is greater than the size of the first gap.

[0125] Regardless of which situation is adopted, by adopting the solution provided in this embodiment, at least the arrangement of the first plug-in portion and the second plug-in portion can be used, and the movement range of the internal threaded component relative to the first shell body will not be reduced in at least one extension direction of at least one preset trajectory.

[0126] like Fig. 9 and Fig.10As shown, in other embodiments, the first plug-in portion 61 may be a convex portion protruding from the outer wall of the internal threaded member 52, and the second plug-in portion 62 may be a groove connected to the mounting hole 31. The convex portion is movably inserted into the groove. The size of the groove in at least one direction is larger than the size of the convex portion. Fig.10 In the embodiment, the size of the groove at least in the Y3 direction and the Y4 direction is greater than the size of the protrusion, so that with the cooperation of the groove and the protrusion, the internal thread member 52 can move relative to the mounting hole 31 along the Y3 direction or the Y4 direction.

[0127] like Fig.11 As shown, in other embodiments, at least a portion of the mounting hole 31 is in an elongated strip shape and the length direction is perpendicular to the first direction. The first limiting structure 60 includes a guide portion 63 disposed on the internal threaded member 52. The guide portion 63 is disposed along the length direction of the mounting hole 31. In this way, when the external threaded member 51 is threadedly connected to the internal threaded member 52, at least one end of the guide portion 63 in the length direction of the mounting hole 31 will abut against the inner wall of the mounting hole 31 to prevent the internal threaded member 52 from rotating as the external threaded member 51 rotates.

[0128] like Fig.12 As shown, in other embodiments, the first limiting structure 60 includes an anti-rotation plate 64 installed on the internal threaded component 52, and a limiting rod 65 arranged on the first shell 30 and extending along the axial direction of the external threaded component 51. The anti-rotation plate 64 is provided with a through hole 66 that penetrates the internal threaded component 52 axially, and the limiting rod 65 is inserted into the above-mentioned through hole 66. The above-mentioned through hole 66 can be a long hole, a T-shaped hole, a cross-shaped hole, etc. In this embodiment, the diameter of the limiting rod 65 is generally smaller than the width of the through hole 66, and the limiting rod 65 can move laterally or longitudinally along the inner edge of the through hole 66. In this way, when the external threaded component 51 is threadedly connected to the internal threaded component 52, due to the presence of the limiting rod 65 and the anti-rotation plate 64, the internal threaded component 52 can only move along a preset trajectory, that is, the length direction of the long hole in the through hole 66, and cannot rotate with the rotation of the external threaded component 51. As shown Fig.12 As shown, the through hole 66 is a cross-shaped hole, one of the elongated holes of the cross-shaped hole extends along the Y5 direction, and the other elongated hole extends along the Y6 direction. The Y5 direction and the Y6 direction are perpendicular. In this way, under the cooperation of the limit rod 65 and the anti-rotation plate 64, the internal threaded member 52 can move relative to the mounting hole 31 along the Y5 direction or the Y6 direction.

[0129] Of course, in other embodiments, the first limiting structure 60 may also adopt other forms as long as the above-mentioned effects can be achieved.

[0130] In addition to the first limiting structure 60, the above-mentioned mounting hole 31 also has multiple configuration methods, and the internal threaded member 52 also has multiple mounting methods. For ease of understanding, examples are given below.

[0131] Embodiment 1

[0132] like Fig. 9 As shown, the mounting hole 31 is a blind hole. The opening of the blind hole faces the second housing 40. The entirety of the internal threaded member 52 is located in the mounting hole 31.

[0133] In this embodiment, the blind hole can be a hole of equal diameter or a hole of variable diameter. It is understood that when the blind hole is a hole of variable diameter, the length of the internal threaded member can be less than the length of the blind hole in the first direction. At this time, the internal threaded member can be in sliding contact with the bottom surface of the blind hole, or it can be in sliding contact with other structures such as step surfaces located in the blind hole. When the blind hole is a hole of equal diameter, in the first direction X, the length of the internal threaded member 52 can be equivalent to the length of the mounting hole 31. Equivalent means that the length of the internal threaded member 52 is the same as the length of the mounting hole 31 or the difference between the length of the internal threaded member 52 and the length of the mounting hole 31 is within a preset range (such as 0.05mm, 0.09mm, etc.). The above preset range can be determined according to the installation requirements. The difference between the length of the internal threaded member 52 and the length of the mounting hole 31 is within the preset range. After the external threaded member 51 and the internal threaded member 52 are tightened, the assembly formed by the two will not move significantly due to the difference between the internal threaded member 52 and the mounting hole 31 in the length direction, affecting the connection stability between the first shell 30 and the second shell 40. At this time, the internal threaded member can be in sliding contact with the bottom surface of the blind hole.

[0134] Regardless of which of the above methods is used, as long as the movable dimensions of the internal thread component 52 and the first shell 30 in the first direction are within the preset dimensions, within the preset dimensions, after the external thread component 51 and the internal thread component 52 are fastened in place, the first shell and the second shell can be fixed.

[0135] Of course, in other embodiments, the blind hole may also be arranged in other ways, such as the diameter of the first hole portion is larger than the diameter of the second hole portion, so that the internal thread member 52 can be arranged in the first hole portion and in sliding contact with the bottom surface of the first hole portion.

[0136] In this embodiment, the first shell 30 can be an integrally formed structure or a split structure. When the first shell 30 is an integrally formed structure, the blind hole can be made when the first shell 30 is prepared, or it can be made by cutting, etching, etc. after the first shell 30 is formed. When the first shell 30 is composed of multiple parts, the blind hole can be made in the form of a through hole and a cover. Fig. 9As shown, in some embodiments, the axis of the external thread member 51 extends along the first direction X. The first housing 30 includes a first portion 33 and a second portion 34. The first portion 33 is provided with a first hole body 35. The first hole body 35 runs through two surfaces of the first portion 33 that are arranged opposite to each other in the first direction. The second portion 34 is located on the side of the first portion 33 that is away from the second housing 40. And the target portion of the second portion 34 blocks the orifice of the first hole body 35 away from the second housing 40. The target portion and the inner wall of the first hole body 35 form a blind hole. The above-mentioned target portion is the portion of the second portion 34 corresponding to the position of the first hole body 35, and is also the portion of the second portion 34 used to block the orifice of the first hole body. In the above scheme, the internal thread member 52 can be installed in the first hole body 35 after the first portion 33 and the first hole body 35 are prepared, and then the second portion 34 is connected to the first portion 33, so that the second portion 34 is closed for the orifice of the first hole body 35 away from the second housing 40. In this way, compared with the blind hole located in the integrally formed first housing 30 , installation of the internal threaded member 52 is facilitated.

[0137] Regardless of which of the above methods is used to make the mounting hole 31, the mounting hole 31 adopts a blind hole structure, and the internal threaded part 52 is limited in its axial position by sliding contact with the bottom surface of the blind hole or other structures in the blind hole, which can make the structure of the internal threaded part 52 and the first shell 30 simple and easy to design and process.

[0138] Embodiment 2

[0139] Fig.13 For along Figure 6 The local cross-sectional structure diagram of the CC line in the middle. Fig.13 As shown, in this embodiment, the axis of the external threaded member 51 extends along the first direction X. The first housing 30 includes a first part 33 and a second part 34. In this embodiment, the materials of the first part 33 and the second part 34 can be the same or different. For example, in some embodiments, the first part 33 and the second part 34 can both be made of non-metallic materials or metals. In other embodiments, the first part 33 can be made of metal materials and the second part 34 can be made of non-metallic materials. When the materials of the first part 33 and the second part 34 are different, the first part 33 and the second part 34 can select different materials according to the needs of use, which helps to control the manufacturing cost of the housing assembly. If the second part 34 will be exposed after assembly, it has high requirements for wear resistance, corrosion resistance, feel, etc., and this part can be made of metal materials. If the first part 33 is hidden in the cavity formed by the first housing 30 and the second part 34 after assembly, the first part 33 can be made of plastic, plastic and other materials with lower cost.

[0140] The second portion 34 is located on the side of the first portion 33 away from the second housing 40, and a first space 36 is formed between the second portion 34 and the first portion 33. Specifically, at least one of the first portion 33 and the second portion 34 has a groove on its surface facing the other portion, and a gap is formed between the two portions at the location of the groove. Fig.13 As shown, in some embodiments, a groove is provided on one side of the first part 33 facing the second part 34. The position of the groove corresponds to the position of the mounting hole 31, and the groove is connected to the mounting hole 31. The second part 34 closes the notch of the groove. The inner wall of the groove and the portion of the second part 34 that closes the notch form a first space 36. With this structure, the structure is simple and easy to prepare. It is understandable that in other embodiments, the groove may be formed on the second part 34, or the groove may be formed on both the first part 33 and the second part 34, which may be determined according to the use requirements.

[0141] The first portion 33 is provided with a mounting hole 31 , which is communicated with the first space 36 .

[0142] In this embodiment, the first portion 33 and / or the second portion 34 is provided with a second limiting structure 70 . The second limiting structure 70 is used to prevent the internal threaded member 52 from falling out of the mounting hole 31 .

[0143] The second limiting structure 70 in this embodiment can be located on the first part 33, or on the second part 34, or can be located partially on the first part 33 and the other part on the second part 34. When the second limiting structure 70 is located on the first part 33, the second limiting structure 70 can be located inside the mounting hole 31, or outside the mounting hole 31, and the specific situation can be determined according to the needs of use. When the second limiting structure 70 is located inside the mounting hole 31, it can be located at the opening of the mounting hole 31 facing the second part 34. At this time, the second limiting structure 70 can adopt a convex block, annular block, etc. protruding from the inner wall of the mounting hole 31. During installation, the internal threaded member 52 is installed into the mounting hole 31 from the mounting hole 31 toward the opening of the second shell 40, so that the bottom surface of the internal threaded member 52 after being installed in the mounting hole 31 abuts against the side of the second limiting structure 70 facing the second shell 40. When the second limiting structure 70 is located outside the mounting hole 31, such as Fig.13 As shown, the second limiting structure 70 can be provided on the side of the first part 33 facing the second part 34. In this case, the second limiting structure 70 can be formed by buckles, fixing parts, etc. The second limiting structure 70 can be integrally formed with the first part 33 according to assembly requirements, or can be detachably connected. If the second limiting structure 70 is a buckle, if the buckle has a certain elasticity, the buckle can be integrally formed with the first part 33. If the buckle is a rigid part that cannot be moved, the buckle can be detachably connected to the first part 33 by plugging, snapping, etc.

[0144] It should be noted that the second limiting structure 70 is used to prevent the internal threaded member 52 from coming out of the mounting hole 31, which does not mean that the portion of the internal threaded member 52 located in the mounting hole 31 cannot come out of the mounting hole 31 at all, and there can be a certain space for coming out, as long as it does not affect the threaded connection between the internal threaded member 52 and the external threaded member 51, and the fastening of the first shell 30 and the second shell 40. In other words, the second limiting structure 70 is used to limit the length of the internal threaded member 52 located in the mounting hole 31 to a preset length, that is, the second limiting structure 70 allows the internal threaded member 52 to have a certain activity space in the first direction X, and the activity space needs not to affect the threaded connection between the internal threaded member 52 and the external threaded member 51, and the fastening of the first shell 30 and the second shell 40.

[0145] The first shell 30 adopts the solution provided in this embodiment, so that the size of the internal threaded part 52 is not limited by the thickness of the first part 33, so that the size of the internal threaded part 52 can be smaller, which helps to save costs and facilitates the installation of the internal threaded part 52.

[0146] On the basis of the above-mentioned embodiment 2, in order to facilitate assembly, in some embodiments, the second limiting structure 70 is located in the first space 36. Compared with the second limiting structure 70 being located in the mounting hole 31, this is not only convenient for processing the second limiting structure 70, but also makes the second limiting structure 70 not occupy the space of the mounting hole 31, so that the activity space of the internal threaded member 52 is larger. In some embodiments, the internal threaded member 52 includes a threaded portion 521 and a limiting portion 522. The threaded portion 521 has an internal thread for threaded connection with the external threaded member 51. At least part of the threaded portion 521 is located in the mounting hole 31, and a first gap 32 is formed between the part of the threaded portion 521 located in the mounting hole 31 and the inner wall of the mounting hole 31. The limiting portion 522 is connected to the threaded portion 521. At least part of the limiting portion 522 protrudes from the peripheral side wall of the threaded portion 521. The limiting portion 522 is located in the first space 36 and is limitedly matched with the second limiting structure 70.

[0147] With the solution provided in this embodiment, the second limiting structure 70 and the limiting portion 522 are both located outside the mounting hole 31 , which makes it easy to observe the relative positions of the two and further facilitates assembly.

[0148] In some embodiments, the second limiting structure 70 includes a clamping portion 71 protruding from a side of the first portion 33 away from the second shell 40. A plurality of clamping portions 71 are provided. The plurality of clamping portions 71 are arranged at intervals around the mounting hole 31. The clamping portion 71 can be a buckle, or a combination of a buckle and other structures. Other structures can adopt a buffer layer, a locking structure, etc. according to the needs of use, which can be determined according to the needs of use.

[0149] The second limiting structure 70 adopts the solution provided in this embodiment, has a simple structure, and is easy to prepare and install the internal threaded member 52 .

[0150] Fig.14 for Fig.13 A local enlarged schematic diagram of the middle point. Fig.14 In some embodiments, the clamping portion 71 at A includes a vertical portion 711 and a horizontal portion 712 connected to each other. The horizontal portion 712 is spaced apart from the first portion 33, and the horizontal portion 712 is connected to the first portion 33 through the vertical portion 711. At least part of the limiting portion 522 is located in the space between the horizontal portion 712 and the first portion 33.

[0151] In this embodiment, the limiting portion 522 can be located in close contact with the transverse portion 712, or can be spaced apart from the transverse portion 712, which can be determined according to the use requirements. If the clamping portion 71 is a buckle, and the buckle is fixedly connected to the first portion 33, then the vertical portion 711 and the transverse portion 712 are both part of the buckle. In this case, for ease of installation, the transverse portion 712 and the limiting portion 522 can be clearance-matched. If the clamping portion 71 is a buckle, but the buckle is movably connected to the first portion 33, then the vertical portion 711 and the transverse portion 712 are also part of the buckle, but how to make the internal threaded member 52 immobile in the first direction after installation, the transverse portion 712 can be in friction contact with the limiting portion 522, that is, it is arranged in close contact.

[0152] The clamping portion 71 adopts the solution provided in this embodiment, has a simple structure, and is easy to design and prepare. The cooperation between the transverse portion 712 and the side of the first portion 33 facing the second portion 34 can realize the limitation of the relative position of the limiting portion 522 and the first portion 33 in the first direction, that is, the limitation of the relative position of the internal threaded member 52 and the first portion 33 in the first direction.

[0153] like Fig.13 and Fig.14 As shown, in some embodiments, the transverse portion 712 and the limiting portion 522 are clearance-matched. In the first direction X, the spacing a2 between the transverse portion 712 and the limiting portion 522 is less than or equal to 0.05 mm. In this way, when the internal threaded member 52 is installed in place, the spacing between the limiting portion 522 and the clamping portion 71 in the first direction is small, and when the external threaded member 51 and the internal threaded member 52 are tightened, it is not easy to affect the connection stability of the first shell 30 and the second shell 40 due to the spacing between the limiting portion 522 and the clamping portion 71 in the first direction.

[0154] Fig.15 for Fig.13 A partial enlarged schematic diagram of point B in the figure. Fig.13 and Fig.15As shown, in order to reduce the risk of eccentricity of the external threaded component 51, the inner diameter of the through hole 41 can be slightly larger than the outer wall of the portion of the external threaded component 51 passing through the through hole 41. Specifically, after the external threaded component 51 is installed, the spacing a1 between the outer wall of the portion of the external threaded component 51 located in the through hole 41 and the inner wall of the through hole 41 is less than or equal to 0.05 mm. In this way, when the external threaded component 51 is inserted into the through hole 41, even if the external threaded component 51 and the through hole 41 are not coaxially arranged due to assembly tolerance, the spacing between the inner wall of the through hole 41 and the outer wall of the external threaded component 51 is small, so that precise matching can be achieved, and the human eye cannot see that the external threaded component 51 is eccentric, which does not affect the aesthetic appearance of the housing assembly and the electronic device using the above housing assembly.

[0155] In order to further reduce the risk of eccentricity of the external threaded member 51, based on the above embodiment, as Fig.15 As shown, in some embodiments, the external threaded member 51 has a step structure 511. And at least part of the step structure 511 is located in the through hole 41. For example, the external threaded member 51 can adopt a step screw, a step bolt, etc. That is, a step structure 511 is set between the cap body and the threaded portion of the external threaded member 51. The length of the step structure 511 in the first direction can be greater than, less than or equal to the length of the through hole 41 in the first direction, which can be determined according to the needs of use. In this way, compared with the external threaded member 51 adopting a member body without a step structure 511, the presence of the step structure 511 can play a guiding and positioning role, so that the external threaded member 51 can be accurately aligned during assembly, which can further improve the precise positioning of the external threaded member 51 and the through hole 41, and help reduce the risk of eccentricity of the external threaded member 51.

[0156] Fig.16 This is a schematic cross-sectional view of the mounting hole and the internal threaded member assembly structure in the housing assembly provided in one embodiment of the present application. Fig.16 As shown, in some embodiments, the mounting hole 31 includes a first hole portion 311 and a second hole portion 312. The area of ​​the cross section of the first hole portion 311 is smaller than the area of ​​the cross section of the second hole portion 312. One of the orifices of the first hole portion 311 faces the second housing. The second hole portion 312 is located on the side of the first hole portion 311 away from the second housing, and is connected to the first hole portion 311. At least part of the internal threaded member is located in the second hole portion 312, and the area of ​​the cross section of the part of the internal threaded member 52 located in the second hole portion 312 is greater than the area of ​​the cross section of the first hole portion 311. That is, the mounting hole 31 is arranged with a reduced diameter near one end of the second housing 40, and a step surface 313 is formed between the first hole portion 311 and the second hole portion 312, and the step surface 313 can abut against the internal threaded member 52 to prevent the internal threaded member 52 from moving toward the side where the second housing 40 is located.

[0157] This can reduce the risk of the internal thread member 52 coming out of the mounting hole 31 near the end of the second housing 40 after installation, thereby facilitating assembly.

[0158] Fig.17 This is a bottom view of a partial structure of an electronic device provided by an embodiment of the present application. Fig.17 As shown, in some embodiments, a surface of the second housing 40 facing away from the first housing has a flat surface 40a and an inclined surface 40b. The through hole is located on the inclined surface 40b.

[0159] This does not affect the aesthetics of the plane portion of the second shell 40 .

[0160] In order to make the side of the second shell facing away from the first shell flat, in some embodiments, the side of the second shell facing away from the first shell is arranged in a mounting groove. The mounting groove corresponds to and is connected to the through hole. The cap body of the external threaded member is located in the mounting groove. And the groove depth of the mounting groove is greater than or equal to the thickness of the cap body. The thickness of the cap body is the size of the cap body in the first direction. The groove depth of the mounting groove is also the size of the mounting groove in the first direction. In this way, the external threaded member does not protrude from the side of the second shell facing away from the first shell, so that the side of the second shell facing away from the first shell can be basically located on the same plane, which helps to improve the aesthetics of the shell assembly.

[0161] Some other embodiments of the present application further provide an electronic device. The electronic device comprises an electronic component and a housing assembly provided by any of the above embodiments. A second space is formed between the first housing and the second housing, and at least part of the electronic component is located in the second space.

[0162] The electronic components are set according to the functions of the electronic device, and may include but are not limited to at least one of the above-mentioned circuit board assembly, keyboard assembly, battery, display screen, touch pad, and may also include other electronic components such as speakers, microphones, etc.

[0163] The electronic device provided in the embodiments of the present application, including the shell assembly adopted in any of the above embodiments, can reduce the risk of eccentricity of the external threaded parts, improve the yield and appearance of the electronic device to a certain extent, and at the same time reduce the manufacturing cost, taking into account both aesthetics and manufacturing cost.

[0164] It is understandable that the housing assembly provided in each embodiment of the present application can be used not only in electronic devices, but also in other mechanical devices with housing assemblies whose at least part of the fastening assembly is exposed, such as decorative boxes, lockers, etc. When the electronic device is other electronic devices, the first housing and the second housing can be two housings that are interlocked and connected by the fastening assembly.

[0165] In addition, the housing assembly provided in each embodiment of the present application can be used not only in devices where the fastening assembly is at least partially exposed, but also in other devices where the fastening assembly is not exposed but higher assembly precision requirements are required.

[0166] Finally, it should be noted that the above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A housing assembly, characterized in that: The invention comprises a first shell, a second shell and a fastening assembly, wherein the first shell and the second shell are interlocked and connected by the fastening assembly, wherein the fastening assembly comprises an external threaded member and an internal threaded member, wherein the first shell is provided with a mounting hole, wherein at least a portion of the internal threaded member is located in the mounting hole, and a first gap is provided between an outer wall of a portion of the internal threaded member located in the mounting hole and an inner wall of the mounting hole, and a first limiting structure is provided between the first shell and the internal threaded member, wherein the first limiting structure is used to limit an absolute value of a rotation angle of the internal threaded member relative to the first shell to be less than or equal to a preset angle, and to allow the internal threaded member to move relative to the first shell along a preset trajectory; wherein the preset angle is less than 360°; wherein the axis of the external threaded member extends along a first direction, wherein the second shell is provided with a through hole penetrating through the second shell along the first direction, wherein at least a portion of the external threaded member passes through the through hole and is threadedly connected to the internal threaded member so as to fix the second shell to the first shell, wherein a spacing is provided between an inner wall of the through hole and an outer wall of at least a portion of the external threaded member, and at least a portion of the external threaded member can be obliquely inserted into the through hole to move the internal threaded member.

2. The housing assembly according to claim 1, characterized in that: The mounting hole is a blind hole, and the entire internal threaded component is located in the mounting hole.

3. The housing assembly according to claim 1, characterized in that: The first shell includes a first part and a second part, the first part is provided with a first hole body, the first hole body passes through two opposite sides of the first part in the first direction, the second part is located on the side of the first part away from the second shell, and the target part of the second part blocks the hole opening of the first hole body away from the second shell, and the target part and the inner wall of the first hole body form the mounting hole.

4. The housing assembly according to claim 1, characterized in that: The first shell includes a first part and a second part, the second part is located at a side of the first part away from the second shell, and a first space is formed between the second part and the first part; The mounting hole is located in the first part, and the mounting hole is connected to the first space. The first part and / or the second part is provided with a second limiting structure, and the second limiting structure is used to prevent the internal threaded component from escaping from the mounting hole.

5. The housing assembly according to claim 4, characterized in that: The second limiting structure is located in the first space.

6. The housing assembly according to claim 5, characterized in that: The internal threaded part includes a threaded portion and a limiting portion; the threaded portion has an internal thread for threaded connection with the external threaded part; at least part of the threaded portion is located in the mounting hole, and the first gap is formed between the part of the threaded portion located in the mounting hole and the inner wall of the mounting hole; the limiting portion is connected to the threaded portion, and at least part of the limiting portion protrudes out of the peripheral side wall of the threaded portion; the limiting portion is located in the first space, and cooperates with the second limiting structure to limit the position.

7. The housing assembly according to claim 4, characterized in that: The first part is provided with a groove on a side facing the second part, the position of the groove corresponds to the position of the mounting hole, and the groove is connected to the mounting hole, the second part closes the notch of the groove, and the inner wall of the groove and the part of the second part that closes the notch form the first space.

8. The housing assembly according to claim 6, characterized in that: The second limiting structure includes a clamping portion protruding from a side of the first part away from the second shell, and a plurality of the clamping portions are provided. The plurality of the clamping portions are spaced around the mounting hole, and the plurality of the clamping portions are respectively clamped and matched with the limiting portion.

9. The housing assembly according to claim 8, characterized in that: The clamping portion includes a vertical portion and a transverse portion connected to each other, the transverse portion is spaced apart from the first portion, and the transverse portion is connected to the first portion through the vertical portion, and at least part of the limiting portion is located in the interval between the transverse portion and the first portion.

10. The housing assembly according to claim 9, characterized in that: The transverse portion and the limiting portion are clearance-matched; in the first direction, the spacing between the transverse portion and the limiting portion is less than or equal to 0.05 mm.

11. The housing assembly according to claim 1, characterized in that: The preset trajectory is located on a plane perpendicular to the first direction.

12. The housing assembly according to claim 6, 8, 9 or 10, characterized in that: The first limiting structure includes a first plug-in portion provided on the limiting portion, and a second plug-in portion provided on the first shell, the first plug-in portion and the second plug-in portion are plug-fitted, and a second gap exists between the first plug-in portion and the second plug-in portion on the preset track.

13. The housing assembly according to claim 12, characterized in that: The preset track has at least one extension direction; in at least one extension direction of at least one of the preset tracks, the size of the second gap is greater than or equal to the size of the first gap.

14. The housing assembly according to any one of claims 1 to 11, characterized in that: The mounting hole includes a first hole portion and a second hole portion, the cross-sectional area of ​​the first hole portion is smaller than the cross-sectional area of ​​the second hole portion, one of the openings of the first hole portion faces the second shell, the second hole portion is located on the side of the first hole portion away from the second shell, and is connected to the first hole portion, at least a portion of the internal threaded component is located in the second hole portion, and the cross-sectional area of ​​the portion of the internal threaded component located in the second hole portion is larger than the cross-sectional area of ​​the first hole portion.

15. The housing assembly according to any one of claims 1 to 11, characterized in that: A surface of the second shell facing away from the first shell has a flat surface and an inclined surface, and the through hole is located on the inclined surface.

16. The housing assembly according to any one of claims 1 to 11, characterized in that: The distance between the outer wall of the portion of the external threaded component located in the through hole and the inner wall of the through hole is less than or equal to 0.05 mm.

17. The housing assembly according to claim 16, characterized in that The external threaded member has a step structure, and at least a portion of the step structure is located in the through hole.

18. An electronic device, characterized in that: The invention comprises an electronic component and a housing assembly as claimed in any one of claims 1 to 17, wherein a second space is formed between the first housing and the second housing, and at least a part of the electronic component is located in the second space.

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