Shell assembly and folding screen terminal

Abstract

The utility model provides a shell assembly and a folding screen terminal, relates to the technical field of electronic equipment, and is used for solving the problem that the production efficiency is influenced by tedious working procedures when various parts are mounted in an existing folding screen terminal. The shell assembly provided by the utility model comprises a rotating shaft mechanism, a middle frame and a first fastener, the rotating shaft mechanism comprises a connecting block and a middle beam, the connecting block is rotationally connected with the middle beam, and the middle frame is fixedly connected with the connecting block. The edge, close to the connecting block, of the middle frame is provided with at least one blind hole and a plurality of through holes, and the blind holes and the through holes are distributed in the length direction of the middle beam. A plurality of mounting holes are formed in the connecting block, and the through holes correspond to the mounting holes in a one-to-one mode. And the first fastener penetrates through the through hole and is connected with the mounting hole. According to the folding screen terminal, sealing can be achieved through the structure of the blind hole, dispensing sealing and subsequent air tightness testing do not need to be carried out when parts are installed, and therefore the installation procedures of various parts in the folding screen terminal can be simplified, and the production efficiency can be improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of electronic devices, and in particular to a housing assembly and a folding screen terminal. Background Art

[0002] With the development of electronic devices (such as mobile phones, tablets, etc.), foldable screen terminals are becoming more and more popular among users because of their larger screen display area after unfolding and their compact size and portability after folding. However, the existing foldable screen terminals require complicated procedures to install various components inside, which is not conducive to improving production efficiency. Utility Model Content

[0003] The embodiments of the present application provide a shell assembly and a folding screen terminal, which are used to solve the problem that when installing various components inside the existing folding screen terminal, the process is complicated and affects the production efficiency.

[0004] In order to achieve the above purpose, the embodiment of the present application adopts the following technical solution:

[0005] In a first aspect, an embodiment of the present application provides a housing assembly, including a rotating shaft mechanism, a middle frame, and a first fastener.

[0006] The rotating shaft mechanism includes a connecting block and a middle beam, the connecting block is rotatably connected to the middle beam, and the middle frame is fixedly connected to the connecting block. At least one blind hole and multiple through holes are provided on the edge of the middle frame close to the connecting block, and the blind holes and multiple through holes are distributed along the length direction of the middle beam. The connecting block is provided with multiple mounting holes, and the multiple through holes are arranged one by one with the multiple mounting holes. The first fastener passes through the through hole and is connected to the mounting hole.

[0007] The shell assembly provided in the first aspect of the present application has a plurality of through holes on the edge of the middle frame near the connecting block. The middle frame can be fixed on the connecting block by passing a first fastener through the through holes and then fastening it to the mounting hole on the connecting block.

[0008] In addition, at least one blind hole is provided on the edge of the middle frame near the connection block, which can be used to install various parts (such as components, brackets, etc.) in the folding screen terminal. Since one end of the blind hole is closed, foreign matter (such as water, water vapor, dust, etc.) from the outside cannot enter the middle frame through the blind hole. In other words, the blind hole structure itself can achieve sealing, and there is no need to perform glue sealing and subsequent air tightness testing when installing parts, which can effectively simplify the installation process of various parts in the folding screen terminal, thereby improving production efficiency and reducing production costs.

[0009] In combination with the first aspect, in a possible implementation, the middle frame and the connection block are stacked, and the blind holes, through holes, and mounting holes all extend along the stacking direction of the middle frame and the connection block. In this way, stacking the middle frame and the connection block can reduce the size of the housing assembly in the direction perpendicular to the stacking direction to a certain extent, thereby facilitating the miniaturization of the folding screen terminal.

[0010] In combination with the first aspect, in another possible implementation, the middle frame includes a first part and a second part, the second part is located on a side of the first part away from the middle beam, the wall thickness of the first part is greater than the wall thickness of the second part, and the first part and the connecting block are stacked, and the blind hole and the through hole are both provided on the first part. In this way, since the wall thickness of the first part is greater than the wall thickness of the second part, drilling processing on the first part is convenient, and the overall structural strength of the middle frame will not be reduced.

[0011] In combination with the first aspect, in another possible implementation, in the stacking direction of the first part and the connecting block, the sum of the heights of the first part and the connecting block is less than or equal to the height of the second part. This configuration not only reduces the overall thickness of the housing assembly, which is conducive to the thinness of the folding screen terminal, but also makes the surface of the connecting block facing the folding screen as flush as possible with the surface of the second part of the middle frame facing the folding screen after the folding screen terminal is unfolded, thereby ensuring the flatness of the folding screen after unfolding, avoiding distortion of the displayed image, and improving the user experience.

[0012] In combination with the first aspect, in another possible implementation, a positioning column extending along the stacking direction is provided on the surface of the first part facing the connection block, and a positioning hole is provided on the connection block, and the positioning column is inserted into the positioning hole. In this way, when the middle frame and the shaft mechanism are assembled together, the middle frame and the connection block can be accurately positioned by utilizing the matching relationship between the positioning column and the positioning hole, thereby eliminating the need for a fixture for positioning, which is conducive to further improving production efficiency.

[0013] In combination with the first aspect, in another possible implementation, the positioning hole radially penetrates the surface of the connection block away from the middle beam. In this way, the space required on the connection block to accommodate the positioning column is smaller (that is, the space occupied by the positioning hole on the connection block is smaller), so that the volume of the connection block can be smaller, which is conducive to the miniaturization and thinness of the folding screen terminal.

[0014] In combination with the first aspect, in another possible implementation, along the stacking direction of the first part and the connecting block, the blind hole is coaxially arranged with the positioning column, and the blind hole extends into the positioning column. In this way, the depth of the blind hole can be further increased (that is, the depth of the blind hole can be greater than the height of the first part of the middle frame along the stacking direction), thereby increasing the contact area between the blind hole and the corresponding fastener, and making the connection more secure. For example, when the blind hole is a threaded hole, more turns of internal threads can be set on the inner wall of the blind hole, and accordingly, the screws matching the blind hole can also be longer, and the number of turns of the external threads on the screws can be more. After the screws are screwed into the blind holes, the number of turns of the external threads of the screws and the internal threads of the blind holes are more, which can reduce the risk of thread slippage and make the connection more secure.

[0015] In combination with the first aspect, in another possible implementation, the blind hole is a threaded hole. The threaded hole is easy to process, and the parts to be installed (such as various components, brackets, etc.) can be locked on the middle frame by screws, and this connection method is also more stable.

[0016] In combination with the first aspect, in another possible implementation, the mounting hole is a threaded hole. The threaded hole is easy to process, and in this case the first fastener can be a screw, by which the middle frame can be locked on the connecting block, and this connection method is also more stable.

[0017] In a second aspect, the present application provides a folding screen terminal, which includes a folding screen, a second fastener, components, and a housing assembly provided in the first aspect. The folding screen is fixed to the housing assembly. The components are arranged in the housing assembly, the components include a device body and a first connecting portion, and the second fastener passes through the first connecting portion and is connected to the blind hole.

[0018] It can be understood that the beneficial effects that can be achieved by the folding screen terminal described in the second aspect provided above can refer to the beneficial effects in the first aspect and any possible implementation method thereof, and will not be repeated here.

[0019] In conjunction with the second aspect, in a possible implementation, the component further includes a second connection portion, and the second connection portion is fixed relative to the middle frame. Thus, multiple positions on the component are fixed, so that the component is fixed more firmly.

[0020] In conjunction with the second aspect, in a possible implementation, a plurality of second connection parts are provided, and the plurality of second connection parts and the first connection parts are arranged circumferentially at intervals around the device body. In this way, at least three non-collinear points on the component are fixed, making the installation of the component more stable.

[0021] In combination with the second aspect, in a possible implementation, the folding screen terminal also includes a bracket, the bracket includes a first area and a second area, the second fastener penetrates the first area and the first connecting portion and is connected to the blind hole, and the second connecting portion is fixedly connected to the second area. In this way, the bracket and the components share the blind hole and the second fastener. On the one hand, during installation, the bracket and the components can be fixed to the middle frame at the same time through the second fastener, which is conducive to further improving production efficiency. On the other hand, it can also avoid the adverse effects of too many blind holes on the edge of the middle frame on the overall strength of the middle frame.

[0022] In combination with the second aspect, in another possible implementation manner, the second area is fixedly connected to the middle frame.

[0023] In combination with the second aspect, in another possible implementation, there are multiple connection points between the second area and the middle frame, which is conducive to the stability of the bracket after installation.

[0024] In combination with the second aspect, in another possible implementation, the component is a vibration motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A structural diagram of a foldable screen terminal provided in an embodiment of the present application;

[0026] Figure 2 for Figure 1 A front view of a foldable screen terminal in an unfolded state;

[0027] Figure 3 for Figure 1 A front view of the foldable screen terminal in a folded state;

[0028] Figure 4 A front view of another folding screen terminal in a folded state provided by an embodiment of the present application;

[0029] Figure 5 A bottom view of a housing assembly provided in an embodiment of the present application;

[0030] Figure 6 for Figure 5 Structural exploded view of the middle shell assembly;

[0031] Figure 7 for Figure 5 Schematic diagram of the cross section at AA in the middle;

[0032] Figure 8 for Figure 7 A partial enlarged view of point B in the middle;

[0033] Fig. 9 For Figure 6 A bottom view of the fixing bracket and components on the housing assembly;

[0034] Fig.10 for Fig. 9 Schematic diagram of the cross section at CC;

[0035] Fig.11 for Fig.10 A partial enlarged view of point D in the middle;

[0036] Fig.12 is a schematic diagram of the distribution of the first connecting portion and the second connecting portion on the component;

[0037] Fig.13 A schematic cross-sectional view of another housing assembly provided in an embodiment of the present application;

[0038] Fig.14 For Fig.13 Schematic diagram of mounting brackets and components on the housing assembly;

[0039] Fig.15 for Fig.13 A partial enlarged view of point E in the middle;

[0040] Fig.16 A cross-sectional schematic diagram of another housing assembly provided in an embodiment of the present application;

[0041] Fig.17 for Fig.16 A partial enlarged view of point F in the middle;

[0042] Fig.18 A schematic diagram of a positioning hole radially penetrating a surface of the first connecting block away from the center beam;

[0043] Fig.19 It is a schematic diagram of the cooperation between the positioning hole and the positioning column;

[0044] Fig. 20 A cross-sectional schematic diagram of another housing assembly provided in an embodiment of the present application;

[0045] Fig.21 for Fig. 20 A partial enlarged view of the G in the middle;

[0046] Fig. 22 A bottom view of another housing assembly provided in an embodiment of the present application.

[0047] Reference numerals:

[0048] 01. Folding screen terminal; 10. Folding screen; 11. First display area; 12. Second display area; 13. Third display area; 20. Shell assembly; 21. Shaft mechanism; 211. Middle beam; 212. Connecting block; 212a. First connecting block; 212b. Second connecting block; 22. Middle frame; 22a. First middle frame; 22b. Second middle frame; 221. First part; 222. Second part; 223. Reinforcement rib; 213. Positioning column; 30. Components ; 31. First connecting part; 32. Second connecting part; 33. Device body; 40. Bracket; 40a. First bracket; 40b. Second bracket; 41. First area; 42. Second area; 50. Sub-screen; 201. First fastener; 202. Second fastener; 203. Third fastener; 210. First fitting surface; 220. Second fitting surface; 230. Third fitting surface; 100. Through hole; 200. Blind hole; 300. Mounting hole; 400. Positioning hole. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the application more clear, the present application is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0050] In the description of the present application, it should be clarified that the terms "vertical", "lateral", "longitudinal", "front", "rear", "left", "right", "up", "down", "horizontal" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application, and do not mean that the devices or elements referred to must have a specific direction or position, and therefore cannot be understood as limiting the present application. The "quantity" mentioned above cannot be understood as limiting the present application.

[0051] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0052] The embodiment of the present application provides a folding screen terminal, which may be an electronic device with a folding screen, for example, a folding screen mobile phone. The folding screen mobile phone may be a mobile phone with an external folding display screen, or a mobile phone with an internal folding display screen. The following description will be made by taking the folding screen terminal as a mobile phone with an internal folding display screen as an example.

[0053] Specifically, see Figure 1 and Figure 2 As shown, Figure 1 This is a structural diagram of a folding screen terminal 01 provided in an embodiment of the present application. Figure 2 for Figure 1 The foldable screen terminal 01 is in a front view in the unfolded state (along the positive direction of the Y axis). The foldable screen terminal 01 may include a foldable screen 10, a shell assembly 20, a bracket 40 and a plurality of components 30. The foldable screen 10 is supported and attached to the shell assembly 20. The shell assembly 20 can drive the foldable screen 10 to rotate between the unfolded state and the folded state. The components 30 and the bracket 40 are both located in the shell assembly 20, and some components 30 are arranged on the bracket 40.

[0054] Understandably, Figure 1 and Figure 2 Only some components of the folding screen terminal 01 are schematically shown, and the actual shape, actual size, actual position and actual structure of the components are not limited by the structures shown in the drawings.

[0055] For the convenience of describing the following embodiments, an XYZ coordinate system is established, and it is defined that when the folding screen terminal 01 is in the unfolded state, the width direction of the folding screen terminal 01 is the X-axis direction, the length direction of the folding screen terminal 01 is the Y-axis direction, and the thickness direction of the folding screen terminal 01 is the Z-axis direction. It should be noted that the coordinate system of the folding screen terminal 01 can be flexibly set according to actual needs. This application only gives an example and cannot be considered as a special limitation to this application.

[0056] The above-mentioned folding screen 10 may include a first display area 11, a second display area 12 and a third display area 13, and the third display area 13 is arranged between the first display area 11 and the second display area 12. When the folding screen terminal 01 is in a folded state, the third display area 13 of the folding screen 10 is bent, and the first display area 11 and the second display area 12 are arranged opposite to each other. At least the third display area 13 of the folding screen 10 can be made of flexible material, and the first display area 11 and the second display area 12 of the folding screen 10 can be made of flexible material, or can be made of rigid material, or can be made of partly flexible material and partly rigid material. Therefore, this application does not make any special limitation on this.

[0057] Among them, the above-mentioned folding screen 10 can be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (AMOLED) display screen, a mini light-emitting diode (mini light-emitting diode) display screen, a micro light-emitting diode (micro light-emitting diode) display screen, a micro organic light-emitting diode (micro organic light-emitting diode) display screen, a quantum dot light emitting diode (QLED) display screen, a liquid crystal display (LCD), etc.

[0058] The above-mentioned shell assembly 20 is used to protect the components 30 inside the folding screen terminal 01. The shell assembly 20 may include a hinge mechanism 21 and a middle frame 22. Among them, two middle frames 22 are provided, namely, a first middle frame 22a and a second middle frame 22b, and the hinge mechanism 21 is connected between the first middle frame 22a and the second middle frame 22b. The hinge mechanism 21 may include a middle beam 211 and a connecting block 212, and the connecting block 212 is rotatably connected to the middle beam 211. There are two connecting blocks 212, namely, a first connecting block 212a and a second connecting block 212b, and the first connecting block 212a and the second connecting block 212b are respectively located on both sides of the middle beam 211 along its own length direction (parallel to the Y-axis direction), and the rotation direction of the first connecting block 212a is opposite to the rotation direction of the second connecting block 212b. The first middle frame 22a is fixedly connected to the first connecting block 212a, and the second middle frame 22b is fixedly connected to the second connecting block 212b.

[0059] Among them, the first connecting block 212a and the second connecting block 212b are respectively connected to the middle beam 211 in a rotational manner, and the connection method of the arc groove and the arc slider can be adopted, so that the first connecting block 212a or the second connecting block 212b can rotate along the arc groove relative to the middle beam 211; or, the first connecting block 212a or the second connecting block 212b can also be rotatably connected with the middle beam 211 by matching the rotating shaft and the shaft hole, and the first connecting block 212a and the second connecting block 212b can be engaged by a gear set, so that the first connecting block 212a and the second connecting block 212b can rotate synchronously and in opposite directions, that is, the first middle frame 22a and the second middle frame 22b can also rotate synchronously and in opposite directions, so that the folding screen terminal 01 can rotate and switch between the unfolded state and the folded state.

[0060] It is understandable that the connection block 212 can also be more in number, that is, a plurality of first connection blocks 212a can be provided, and the plurality of first connection blocks 212a are arranged at intervals along the length direction of the middle beam 211, and are all fixedly connected to the first middle frame 22a. A plurality of second connection blocks 212b can also be provided, and the plurality of second connection blocks 212b are arranged at intervals along the length direction of the middle beam 211, and are all fixedly connected to the second middle frame 22b. For ease of understanding, the following examples are all taken as an example in which both the first connection block 212a and the second connection block 212b are one.

[0061] The first middle frame 22a has a first bonding surface 210, and the first display area 11 of the folding screen 10 is supported and bonded to the first bonding surface 210. The second middle frame 22b has a second bonding surface 220, and the second display area 12 of the folding screen 10 is supported and bonded to the second bonding surface 220. The hinge mechanism 21 has a third bonding surface 230, and the third display area 13 of the folding screen 10 is supported and bonded to the third bonding surface 230. The first middle frame 22a and the second middle frame 22b are rotatably connected through the hinge mechanism 21, so that the folding screen terminal 01 can be rotated and switched between the above-mentioned unfolded state and the folded state.

[0062] When the folding screen terminal 01 is in the unfolded state, please continue to refer to Figure 1 and Figure 2 As shown, Figure 1 and Figure 2 The folding screen terminals 01 are all in the unfolded state. The first laminating surface 210, the second laminating surface 220 and the third laminating surface 230 are in the same plane, so that the folding screen 10 can be fully unfolded, that is, the first display area 11, the second display area 12 and the third display area 13 of the folding screen 10 are in the same plane, and the flatness of the folding screen 10 can be ensured. In this state, the large-screen display of the folding screen terminal 01 can be achieved, which can bring a better user experience.

[0063] When the folding screen terminal 01 is in the folded state, please refer to Figure 3 As shown, Figure 3 for Figure 1 The front view of the folding screen terminal 01 in the folded state (along the positive direction of the Y axis). The first display area 11 and the second display area 12 of the folding screen 10 are opposite, the third display area 13 is bent, and the shell assembly 20 is protected outside the folding screen 10, that is, the folding screen 10 is between the first middle frame 22a and the second middle frame 22b of the shell assembly 20. In this state, the folding screen 10 is invisible to the user to prevent the folding screen 10 from being scratched or damaged, thereby effectively protecting the folding screen 10. Exemplarily, when the mobile phone is not in use, the terminal can be folded and placed to avoid damage to the screen.

[0064] In some embodiments, see Figure 4 As shown, Figure 4 A front view (along the positive direction of the Y axis) of another folding screen terminal 01 in a folded state provided in an embodiment of the present application. The above-mentioned folding screen terminal 01 may also include a sub-screen 50 (also referred to as an external screen), which is a flat screen and is arranged on the side of the first middle frame 22a away from the folding screen 10, or is arranged on the side of the second middle frame 22b away from the folding screen 10. When the folding screen terminal 01 is in a folded state, the sub-screen 50 can be used to display images, and the user can operate the device with one hand to make the use scenario of the folding screen terminal 01 more diversified, which is conducive to further improving the user experience. For example, when the user's App (Application) account receives a message, the folding screen terminal 01 can display a message pop-up window on the sub-screen 50, and the user can know the message content through the sub-screen 50 without unfolding the folding screen terminal 01 again.

[0065] On this basis, see Figure 5 , Figure 6 and Figure 7 As shown, Figure 5 A bottom view (along the positive direction of the Z axis) of a housing assembly 20 provided in an embodiment of the present application is shown in FIG. Figure 6 for Figure 5 The structural exploded view of the middle shell assembly 20, Figure 7 for Figure 5 Schematic cross-sectional view at AA. To achieve a fixed connection between the middle frame 22 and the connecting block 212, a plurality of through holes 100 distributed along the length direction of the middle beam 211 are generally provided on the edge of the middle frame 22 close to the connecting block 212. Accordingly, a plurality of mounting holes 300 are provided on the connecting block 212, and the plurality of through holes 100 are arranged in a one-to-one correspondence with the plurality of mounting holes 300. At the same time, a plurality of first fasteners 201 that can cooperate with the mounting holes 300 are also provided. The first fasteners 201 pass through the through holes 100 and are connected to the mounting holes 300, thereby achieving a fixed connection between the middle frame 22 and the connecting block 212.

[0066] It is understandable that the first fastener 201 can be connected to the mounting hole 300 by threaded connection, clamping, riveting, etc., and this application does not specifically limit this. For ease of understanding, the following examples are all given with the mounting hole 300 being a threaded hole and the first fastener 201 being a screw.

[0067] See also Figure 8 As shown, Figure 8 for Figure 7Since there is a gap between the first fastener 201 and the corresponding through hole 100 and mounting hole 300, foreign matter (such as water, water vapor, dust, etc.) in the external environment may enter the interior of the middle frame 22 through the gap ( Figure 8 The dotted arrow in the middle is the path for foreign matter to enter), which will adversely affect the normal function of the folding screen terminal 01. Therefore, when assembling the middle frame 22 and the connecting block 212, the through hole 100 corresponding to the first fastener 201 will also be sealed with glue, and an airtightness test will be performed to ensure that the sealing requirements are met.

[0068] For example, glue can be applied at one end of the through hole 100 away from the folding screen 10, and then the first fastener 201 can be inserted from the end of the through hole 100 away from the folding screen 10. At this time, the glue will fill the gap between the first fastener 201 and the through hole 100, thereby blocking the path for foreign matter to enter. Alternatively, the first fastener 201 can be inserted and fastened from the end of the through hole 100 away from the folding screen 10, and then glue can be dispensed to fill the gap between the first fastener 201 and the surface of the middle frame 22 away from the folding screen 10, thereby completing the sealing.

[0069] The bracket 40 can be used to set various components 30 to improve the space utilization in the middle frame 22. The bracket 40 is fixedly connected to the middle frame 22, and the components 30 are arranged on the surface of the bracket 40 facing the folding screen 10. The components 30 can be a vibration motor, an earpiece, a microphone, a speaker, etc. The bracket 40 and the components 30 can be arranged in the first middle frame 22a or in the second middle frame 22b, and this application does not make any special restrictions on this. The following are all examples of the bracket 40 and the components 30 being arranged in the first middle frame 22a.

[0070] In some cases, the bracket 40 and the component 30 may share a connection point between the first middle frame 22a and the first connecting block 212a. For example, when the component 30 is a vibration motor, if the vibration motor is only connected to the bracket 40, during the vibration of the vibration motor, the bracket 40 is subjected to a large vibration force, which may easily cause fatigue fracture of the bracket 40. In this case, please refer to Fig. 9 As shown, Fig. 9 For Figure 6A bottom view (along the positive direction of the Z axis) of fixing the bracket 40 and the component 30 on the housing assembly 20 in FIG. The vibration motor (component 30) and the bracket 40 can be arranged relative to one of the through holes 100 on the edge of the first middle frame 22a close to the first connecting block 212a, and then the bracket 40 and the component 30 can be fixed together on the first middle frame 22a by cooperating with the first fastener 201 corresponding to the first through hole 100 and the corresponding mounting hole 300. The above structural design is equivalent to using the first middle frame 22a to share part of the vibration force, thereby reducing the risk of fatigue fracture of the bracket 40 to a certain extent.

[0071] Among them, see Fig.10 and Fig.11 As shown, Fig.10 for Fig. 9 Schematic diagram of the cross section at CC (parallel to the XZ plane), Fig.11 for Fig.10 The partial enlarged view at D in the middle. The bracket 40 may include a first area 41 and a second area 42, the component 30 includes a device body 33, a first connecting portion 31 and a second connecting portion 32, and the first fastener 201 penetrates the first area 41 and the first connecting portion 31 and is connected to the mounting hole 300. The second connecting portion 32 is fixedly connected to the second area 42. In this way, the original first fastener 201 not only realizes the direct connection between the component 30 and the edge of the first middle frame 22a close to the first connecting block 212a, but also completes the fixation of the bracket 40.

[0072] It is understandable that the second area 42 of the bracket 40 can be fixedly connected to other parts of the first middle frame 22a, for example, the second area 42 is fixedly connected to other edges of the first middle frame 22a. In addition, there can be multiple connection points between the second area 42 of the bracket 40 and the first middle frame 22a, so that the bracket 40 is fixed more firmly, which is beneficial to the stability of the bracket 40 after installation.

[0073] The second connecting portion 32 and the second region 42 may be directly connected by welding, bonding, etc., or may be connected by using an additional connecting member. Fig.11 As shown, the second connecting portion 32 and the second region 42 are fixedly connected via a third fastener 203 .

[0074] In some embodiments, see Fig.12 As shown, Fig.12Schematic diagram of the distribution of the first connection part 31 and the second connection part 32 on the component 30. The component 30 has a plurality of second connection parts 32, and the plurality of second connection parts 32 and the first connection part 31 are circumferentially spaced around the device body 33, that is, after the component 30 is fixed, at least three non-collinear points on the component 30 are fixed, so that the installation of the component 30 is more stable.

[0075] For example, see Fig.12 As shown, the component 30 has one first connection part 31, two second connection parts 32, and correspondingly, two third fasteners 203. After the component is fixed by the second fastener 202 and the third fastener 203, the center points of the two third fasteners 203 and the center points of the second fastener 202 are located at Fig.12 At the three vertices of the triangle shown by the dotted line, the component 30 is fixed more firmly by utilizing the stability principle of the triangle.

[0076] However, since the bracket 40 and the component 30 are installed after the first middle frame 22a and the rotating shaft mechanism 21 are assembled, in order to ensure that the sealing requirements are met, it is necessary to separately seal the through hole 100 corresponding to the first fastener 201 that fixes the bracket 40 and the component 30, and then perform an airtightness test again. As a result, the process is relatively cumbersome and is not conducive to improving production efficiency. In addition, when a problem occurs in the subsequent bracket 40 or the component 30 and needs to be reversely disassembled, the presence of the sealant in the through hole 100 increases the difficulty of disassembly.

[0077] To solve the above problems, the present application provides another housing assembly 20. Fig.13 , Fig.14 and Fig.15 As shown, Fig.13 A cross-sectional schematic diagram (parallel to the XZ plane) of another housing assembly 20 provided in an embodiment of the present application is shown in FIG. Fig.14 For Fig.13 A schematic diagram of mounting bracket 40 and components 30 on housing assembly 20, Fig.15 for Fig.13 A partial enlarged view of point E in the middle.

[0078] The housing assembly 20 may include the above-mentioned rotating shaft mechanism 21, a first middle frame 22a and a second middle frame 22b. A blind hole 200 is further provided on the edge of the first middle frame 22a near the first connecting block 212a. The opening of the blind hole 200 faces away from the folding screen 10. The blind hole 200 and the plurality of through holes 100 ( Fig.11 ) are distributed along the length direction of the middle beam 211.

[0079] It can be understood that the above structure is equivalent to replacing one of the original plurality of through holes 100 with a blind hole 200 .

[0080] The above-mentioned blind hole 200 may be provided with one or more. When the above-mentioned housing assembly 20 is in use, it is also equipped with a second fastener 202, which penetrates the first area 41 of the bracket 40 and the first connecting portion 31 of the component 30 and is connected to the blind hole 200, thereby fixing the bracket 40 and the component 30 on the first middle frame 22a.

[0081] In this way, by opening a blind hole 200 on the edge of the first middle frame 22a close to the first connecting block 212a, the blind hole 200 can be used to cooperate with the second fastener 202 to fix the bracket 40 and the component 30, so as to realize the direct connection between the component 30 and the edge of the first middle frame 22a close to the first connecting block 212a. Since the blind hole 200 is closed at one end close to the folding screen 10, foreign matter (such as water, water vapor, dust, etc.) in the external environment cannot enter the first middle frame 22a through the blind hole 200. In other words, the sealing can be achieved by using the structure of the blind hole 200 itself, and there is no need to perform glue sealing and subsequent air tightness testing when installing the bracket 40 and the component 30, thereby effectively simplifying the installation process, thereby improving production efficiency and reducing production costs.

[0082] It is understandable that when the bracket 40 and the component 30 need to be arranged on the second middle frame 22b, the blind hole 200 can also be opened on the edge of the second middle frame 22b close to the second connecting block 212b, which will not be described in detail here.

[0083] The blind hole 200 may be a threaded hole, and correspondingly, the second fastener 202 is a screw, and the second fastener 202 is threadedly connected to the blind hole 200. Alternatively, the blind hole 200 may be a snap-fit ​​hole, and the second fastener 202 is a snap-fit ​​part, and the second fastener 202 is snap-fitted with the blind hole 200. Of course, the blind hole 200 and the second fastener 202 may also be in other matching relationships, and the component 30 can be fixed on the middle frame 22 through the matching between the two, and the present application does not make any special limitation on this.

[0084] For ease of understanding, the following description is made by taking the blind hole 200 as a threaded hole and the second fastener 202 as a screw as an example.

[0085] In some embodiments, please see Fig.13 , Fig.14 and Fig.15As shown, the first middle frame 22a and the first connecting block 212a are stacked (along the Z-axis direction), and the blind hole 200, the through hole 100 and the mounting hole 300 all extend along the stacking direction of the first middle frame 22a and the first connecting block 212a (along the Z-axis direction). In this way, the size of the housing assembly 20 in the X-axis direction can be reduced to a certain extent, which is conducive to the miniaturization of the folding screen terminal 01.

[0086] The first middle frame 22a may include a first portion 221 and a second portion 222, wherein the second portion 222 is located on a side of the first portion 221 away from the middle beam, the wall thickness (along the X-axis direction) of the first portion 221 is greater than the wall thickness (along the X-axis direction) of the second portion 222, and the first portion 221 is stacked with the first connecting block 212a, and the blind hole 200 and the through hole 100 ( Fig.11 The first part 221 is provided with the blind hole 200 and the through hole 100. The blind hole 200 and the through hole 100 are not shown in the figure. The blind hole 200 and the through hole 100 are provided on the first part 221. In this way, since the wall thickness of the first part 221 is greater than the wall thickness of the second part 222, it is convenient to perform drilling processing on the first part 221, and the opening of the blind hole 200 and the through hole 100 will not reduce the overall structural strength of the first middle frame 22a.

[0087] It is understandable that the first part 221 and the second part 222 can be connected by welding, bonding, etc. Alternatively, the first part 221 and the second part 222 can also be connected to form an integral structure, that is, the first part 221 and the second part 222 form a structural component as a whole, and there is no separation fault between the two. Compared with the split structure, the integral structure is more solid and easy to manufacture (for example, one-time molding by injection molding, cutting, stamping, casting, 3D printing, etc.), thereby reducing production costs.

[0088] In some embodiments, please see Fig.13 , Fig.15 As shown, in the stacking direction (along the Z-axis direction) of the first part 221 and the first connecting block 212a, the sum of the height of the first part 221 and the height of the first connecting block 212a is less than or equal to the height of the second part 222. For example, in the Z-axis direction, the sum of the height of the first part 221 and the height of the first connecting block 212a is equal to the height of the second part 222. In this way, not only can the overall height of the housing assembly 20 along the Z-axis direction be reduced, which is conducive to the thinness of the folding screen terminal 01, but also after the folding screen terminal 01 is unfolded, the surface of the first connecting block 212a facing the folding screen 10 is flush with the surface of the first middle frame 22a facing the folding screen 10, thereby ensuring the flatness of the folding screen 10 after unfolding, avoiding distortion of the displayed image, and improving the user experience.

[0089] On the basis of the above, in order to facilitate the assembly and positioning between the first middle frame 22a and the first connecting block 212a, see Fig.16 and Fig.17 As shown, Fig.16 A cross-sectional schematic diagram (parallel to the XZ plane) of another housing assembly 20 provided in an embodiment of the present application is shown. Fig.17 for Fig.16 A partial enlarged view of the F in the middle. Among them, a positioning column 213 extending along the stacking direction (along the Z-axis direction) is provided on the surface of the first part 221 facing the first connecting block 212a, and a positioning hole 400 is opened on the first connecting block 212a, and the positioning column 213 is inserted into the positioning hole 400. In this way, when the first middle frame 22a and the rotating shaft mechanism 21 are assembled together, the first middle frame 22a and the first connecting block 212a can be accurately positioned by using the matching relationship between the positioning column 213 and the positioning hole 400, thereby avoiding the use of a clamp for positioning, which is conducive to further improving production efficiency.

[0090] It is understandable that the above-mentioned positioning column 213 can be provided with one or multiple positioning columns 213 can be provided at intervals, and the present application does not make any special limitation on this.

[0091] When a plurality of positioning posts 213 are arranged at intervals, a plurality of positioning holes 400 are also arranged at intervals, and the positioning posts 213 correspond to the positioning holes 400 one by one. In this way, by arranging a plurality of positioning posts 213 at intervals and a plurality of positioning holes 400 corresponding to the positioning posts 213 one by one, in a cross section perpendicular to the stacking direction (parallel to the XY plane), not only can the first middle frame 22a and the first connecting block 212a be prevented from relative movement, but also because the center points of the two positioning holes 400 or the center points of the two positioning posts 213 can determine a straight line, relative rotation between the first middle frame 22a and the first connecting block 212a can be avoided.

[0092] In order to further improve the positioning accuracy between the first middle frame 22a and the first connecting block 212a, in the cross section perpendicular to the above-mentioned stacking direction (parallel to the XY plane), the shape and size of the above-mentioned positioning hole 400 can also be adapted to the shape and size of the positioning column 213 (for example, both are cylindrical, prismatic, etc.).

[0093] In some embodiments, see Fig.18 As shown, Fig.18The schematic diagram shows that the positioning hole 400 radially penetrates the surface of the first connecting block 212a away from the middle beam 211. Among them, the positioning hole 400 can also radially penetrate the surface of the first connecting block 212a away from the middle beam 211. That is to say, in the cross section perpendicular to the stacking direction of the first part 221 and the first connecting block 212a (parallel to the XY plane), the positioning hole 400 is open. In this way, it is equivalent to making the space required on the first connecting block 212a to accommodate the positioning column 213 smaller (that is, the positioning hole 400 will not occupy too much space on the first connecting block 212a), so that the volume of the first connecting block 212a can be smaller, which is conducive to the miniaturization and thinness of the folding screen terminal 01.

[0094] For example, see Fig.19 As shown, Fig.19 Schematic diagram of the cooperation between the positioning hole 400 and the positioning column 213. In the cross section perpendicular to the stacking direction of the first part 221 and the first connecting block 212a (parallel to the XY plane), the shape of the positioning hole 400 is equivalent to a circle with a radius of r being cut off by a straight line, but the remaining arc length is still greater than π (that is, the central angle θ corresponding to the remaining arc length is greater than 180°). The positioning column 213 ( Fig.19 The radius of the dotted circle is also r. After the positioning column 213 is inserted into the positioning hole 400, the outer wall of the positioning column 213 can still fit with the inner wall of the positioning hole 400, and the structure of the positioning hole 400 can also prevent the positioning column 213 from escaping from the positioning hole 400 in the radial direction (along the X-axis).

[0095] On the basis of the above, see Fig. 20 and Fig.21 As shown, Fig. 20 A cross-sectional schematic diagram (parallel to the XZ plane) of another housing assembly 20 provided in an embodiment of the present application is shown. Fig.21 for Fig. 20 A partial enlarged view of the G in the middle. Among them, along the stacking direction of the first part 221 and the first connecting block 212a, the blind hole 200 is coaxially arranged with the positioning column 213, and the blind hole 200 can extend into the positioning column 213. In this way, the depth of the blind hole 200 is no longer limited by the height of the first part 221 of the first middle frame 22a along the stacking direction (along the Z-axis direction), that is, the depth of the blind hole 200 can be greater than the height of the first part 221 along the stacking direction (along the Z-axis direction), thereby increasing the contact area between the blind hole 200 and the corresponding second fastener 202, making the connection between the two more secure.

[0096] For example, the blind hole 200 is a threaded hole. When the blind hole 200 extends into the positioning column 213, more turns of internal threads can be set on the inner wall of the blind hole 200. Accordingly, the screw (i.e., the second fastener 202) that cooperates with the blind hole 200 can also be longer, and the number of turns of external threads on the screw can be more. After the screw is screwed into the blind hole 200, the number of turns of the external threads of the screw and the internal threads of the blind hole 200 that are engaged are more, which can reduce the risk of thread stripping and make the connection between the screw and the threaded hole more secure.

[0097] In some embodiments, one or more brackets 40 may be provided, and the number of brackets 40 may be selected according to actual needs, and the present application does not impose any special limitation on this.

[0098] In addition to the components 30, the bracket 40 may also be provided with other components. For example, the mainboard of the folding screen terminal 01 is fixed on the bracket 40, and the mainboard is used to set the electronic components of the folding screen terminal 01 and realize the electrical connection between the electronic components. Exemplarily, the electronic components may be a control chip (such as a system on chip, System on Chip, SOC), a graphics processing unit (GPU), a low power double data rate memory (LowPower Double Data Rate SDRAM, LPDDR), a universal flash storage (UFS), etc.

[0099] For example, see Fig. 22 As shown, Fig. 22 A bottom view (along the positive direction of the Z axis) of another housing assembly 20 provided in an embodiment of the present application. There are two brackets 40, namely a first bracket 40a and a second bracket 40b. The first bracket 40a and the second bracket 40b are both arranged on the first middle frame 22a. The first middle frame 22a has a grid-shaped reinforcing rib 223. In the illustrated position, the first bracket 40a is fixedly connected to the upper edge of the first middle frame 22a and the reinforcing rib 223, respectively. The motherboard of the folding screen terminal 01 ( Fig. 22 ) is fixed on the first bracket 40a toward the folding screen 10 ( Fig. 22 The second bracket 40b is fixedly connected to the lower edge of the first middle frame 22a, the reinforcing rib 223 and the right edge (i.e., the edge close to the first connecting block 212a), respectively. The components 30 ( Fig. 22 The first middle frame 22a is fixed to the second bracket 40b (not shown) and is fixedly connected to the right edge of the first middle frame 22a (ie, the edge close to the first connecting block 212a).

[0100] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0101] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which 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, applied to a folding screen terminal, characterized in that: The housing assembly includes a rotating shaft mechanism, a middle frame and a first fastener; The rotating shaft mechanism comprises a connecting block and a middle beam, the connecting block is rotatably connected to the middle beam, and the middle frame is fixedly connected to the connecting block; At least one blind hole and multiple through holes are provided on the edge of the middle frame close to the connecting block, and the blind hole and the multiple through holes are distributed along the length direction of the middle beam; the connecting block is provided with multiple mounting holes, and the multiple through holes are arranged in one-to-one correspondence with the multiple mounting holes; the first fastener passes through the through hole and is connected to the mounting hole.

2. The housing assembly according to claim 1, characterized in that: The middle frame and the connecting block are stacked, and the blind holes, the through holes and the mounting holes all extend along a stacking direction of the middle frame and the connecting block.

3. The housing assembly according to claim 1, characterized in that: The middle frame includes a first part and a second part, the second part is located on a side of the first part away from the middle beam, the wall thickness of the first part is greater than the wall thickness of the second part, and the first part is stacked with the connecting block, and the blind hole and the through hole are both arranged on the first part.

4. The housing assembly according to claim 3, characterized in that: In a stacking direction of the first portion and the connecting block, a sum of a height of the first portion and a height of the connecting block is less than or equal to a height of the second portion.

5. The housing assembly according to claim 4, characterized in that: A surface of the first part facing the connection block is provided with a positioning column extending along the stacking direction, and a positioning hole is opened on the connection block, and the positioning column is inserted into the positioning hole.

6. The housing assembly according to claim 5, characterized in that: The positioning hole radially penetrates a surface of the connection block away from the center beam.

7. The housing assembly according to claim 5, characterized in that: Along the stacking direction of the first part and the connecting block, the blind hole is coaxially arranged with the positioning column, and the blind hole extends into the positioning column.

8. The housing assembly according to any one of claims 1 to 7, characterized in that: The blind hole is a threaded hole.

9. The housing assembly according to any one of claims 1 to 7, characterized in that: The mounting hole is a threaded hole.

10. A folding screen terminal, characterized in that: include: Folding screen; A shell assembly, which is the shell assembly according to any one of claims 1 to 9, wherein the folding screen is fixed to the shell assembly; A component, wherein the component is disposed in the housing assembly, and the component comprises a component body and a first connecting portion; A second fastener passes through the first connecting portion and is connected to the blind hole.

11. The folding screen terminal according to claim 10, characterized in that: The component further includes a second connecting portion, and the second connecting portion is fixed relative to the middle frame.

12. The folding screen terminal according to claim 11, characterized in that: A plurality of the second connection parts are provided, and the plurality of the second connection parts and the first connection parts are arranged at intervals around the circumference of the device body.

13. The folding screen terminal according to claim 11 or 12, characterized in that: The folding screen terminal also includes a bracket, the bracket includes a first area and a second area, the second fastener penetrates the first area and the first connecting portion and is connected to the blind hole, and the second connecting portion is fixedly connected to the second area.

14. The folding screen terminal according to claim 13, characterized in that: The second area is fixedly connected to the middle frame.

15. The folding screen terminal according to claim 14, characterized in that: There are multiple connection points between the second area and the middle frame.

16. The foldable screen terminal according to claim 10, characterized in that: The component is a vibration motor.

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