Foldable electronic device

Abstract

The present application provides a foldable electronic device, comprising a display screen, a first magnetic attraction portion, a second magnetic attraction portion, a first housing and a second housing, wherein the display screen is provided with a display surface and a conductive area, the first housing comprises a first middle plate and a first frame, the first housing comprises a corner area, the first middle plate comprises a first surface and a mounting groove, the mounting groove is located at the corner area of the first housing, the second housing comprises a mounting groove, the second magnetic attraction portion is accommodated in the mounting groove of a third surface, the first magnetic attraction portion comprises a housing and a magnet array, the housing comprises a bearing plate and a connecting plate which is arranged opposite the bearing plate at an interval, the magnet array is accommodated and limited within the housing, the bearing plate and the connecting plate respectively abut against two opposing side surfaces of the magnet array, the connecting plate is connected to a grounding piece, the first magnetic attraction portion is accommodated in the mounting groove, the housing is in contact with a groove wall of the mounting groove, the grounding piece is exposed on the first surface, the display screen is stacked on the first surface and the third surface, and the grounding piece abuts against and is conducted with the conductive area.

Description

Foldable electronic devices

[0001] This application claims priority to patent application No. 202410973917.3 filed in China on July 18, 2024, entitled "Foldable Electronic Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication equipment technology, and more particularly to a foldable electronic device. Background Technology

[0003] In current technology, foldable screens have become a development trend in electronic devices (foldable electronic devices) to meet the requirements of large-screen designs. Taking foldable phones as an example, a foldable phone generally includes two housings and a hinge connecting the two housings. A flexible display screen is mounted on the two housings, and the two housings are folded and unfolded through the hinge, thereby realizing the folding and unfolding of the flexible display screen.

[0004] As the packaging of large screens and the requirements for the width and size of flexible circuit boards increase, and the overall stack size of the device continues to shrink, the grounding space for the screen at the edge of foldable phones is becoming increasingly limited. How to meet the requirements for screen grounding and the stacking layout of corner screws, adhesive, etc. in a very limited space has become an urgent problem to be solved by existing technologies. Summary of the Invention

[0005] This application provides a foldable electronic device that uses a built-in positioning magnetic part to ground the display screen, thereby saving space in the casing.

[0006] The foldable electronic device provided in this application embodiment includes a display screen, a first magnetic attraction part, a second magnetic attraction part, a first housing, and a second housing rotatably connected to the first housing. The display screen has a display surface and a guide area disposed opposite to the display surface.

[0007] The first housing includes a first middle plate and a first frame connected to the edge of the first middle plate. The first housing includes a corner region. The first middle plate includes a first surface and a mounting groove. The mounting groove is recessed in the first surface and located in the corner region of the first housing.

[0008] The second housing includes a third surface and a corner region. The third surface is provided with a mounting groove. The second magnetic part is accommodated in the mounting groove of the third surface and is located in the corner region of the second housing.

[0009] The first magnetic attraction part includes a housing and a magnet array. The housing includes a support plate and a connecting plate spaced apart from the support plate. The magnet array is housed and confined within the housing. The support plate abuts against the two opposite surfaces of the magnet array at the connecting plate.

[0010] The connecting plate is connected to a grounding component. The first magnetic suction part is accommodated in the mounting groove. The outer shell is in contact with the groove wall of the mounting groove. The grounding component is exposed on the first surface. The display screen is stacked on the first surface and the third surface. The grounding component abuts against and conducts electricity with the conductive area.

[0011] The first housing and the second housing can be rotated and folded relative to each other, so that the display screen can be folded and accommodated between the first housing and the second housing, and the first magnetic part and the second magnetic part are opposite to each other and adsorbed.

[0012] In this embodiment, the first and second magnetic suction parts can fix the first and second housings when they are folded, preventing them from opening during use. The first and second magnetic suction parts are located in the corner area of ​​the first and second housings, avoiding excessive space occupation. As the packaging of large screens and the trace width and size requirements of flexible circuit boards increase in foldable electronic devices, placing screen grounding at the edge of the foldable phone would occupy a certain amount of housing space. In this embodiment, the magnetic suction part located in the corner area of ​​the foldable electronic device is directly combined with a grounding component. The grounding component connects the conductive area of ​​the display screen to the housing, and the housing connects to the first middle plate, thus achieving grounding of the display screen through the housing and the first middle plate. This eliminates the need to occupy additional space on the first middle plate, satisfying both the display grounding requirements and the stacking layout space in the corner area of ​​the housing for screws fixing the motherboard bracket, connecting the display screen and the middle frame adhesive, etc. The corner area is the corner position of the first middle plate and connects to the corner of the first frame. The conductive area of ​​the display screen is actually recessed relative to the back. There is a certain gap between the conductive area and the first surface of the first middle plate, so the grounding component is connected to the conductive area without occupying additional space in the first housing.

[0013] In one embodiment, the grounding element includes a conductive layer formed on the surface of the connecting plate facing away from the carrier plate; or the grounding element includes a conductive spring, one end of which is connected to the free end of the connecting plate, the conductive spring extending into the housing, and the conductive spring tilting relative to the carrier plate. In this embodiment, by directly providing a conductive layer on the housing of the first magnetic suction part to conduct to the conductive area of ​​the display screen, or by providing a conductive spring on the housing, the purpose of grounding the display screen to the first middle frame through the housing can be achieved. The structure is simple, easy to implement, and does not occupy space.

[0014] In one embodiment, a guiding protrusion is provided on the free end of the conductive spring facing away from the bearing plate, and the guiding protrusion abuts against the guiding area. In this embodiment, by providing a guiding protrusion on the conductive spring, the connection stability between the conductive spring and the guiding area is improved, thereby ensuring the conductive grounding performance.

[0015] In one embodiment, the grounding element further includes an elastic conductive layer sandwiched between the conductive layer and the conductive region. In this embodiment, the elastic conductive layer is conductive foam, which is compressible and can improve the electrical connection stability between the conductive layer and the conductive region; there is a gap between the conductive region and the first middle plate, and the elastic conductive layer makes good use of this space without occupying the thickness space of the shell.

[0016] In one embodiment, the outer casing further includes a peripheral side plate connected to the edge of the support plate, and a connecting plate connected to the end of the peripheral side plate away from the support plate. The peripheral side plate, the connecting plate, and the support plate form a limiting space to accommodate the first magnetic suction part. A protrusion is provided on the side of the peripheral side plate facing away from the limiting space, and the protrusion abuts against the sidewall of the mounting groove. In this embodiment, the protrusion on the outer casing abuts against the wall of the mounting groove on the first middle plate, which can improve the connection stability between the outer casing and the mounting groove, thereby enhancing the conductivity stability between the outer casing and the first middle plate and ensuring the grounding performance of the display screen.

[0017] In one embodiment, the outer casing includes a side plate, a first baffle, and a second baffle; the side plate is connected to the edge of the support plate in the width direction, and the first baffle and the second baffle are respectively connected to two edges of the support plate in the length direction.

[0018] The end of the second baffle away from the support plate extends away from the support plate and bends to form the connecting plate; the first magnetic part abuts against the support plate, the side plate, the first baffle, the second baffle and the connecting plate;

[0019] The side plate, the first baffle, and the second baffle have the protrusion on the side facing away from the limiting space. In this embodiment, the connecting plate is located at the end of the width direction of the outer shell. The connecting plate and the bearing plate can clamp the first magnetic suction part, and the guide spring is connected to the connecting plate without affecting the fixation and performance of the magnetic suction part. At the same time, its own elasticity can better abut against the display screen.

[0020] In one embodiment, the outer casing includes a side panel and two baffles; the side panel is connected to the edge of the support plate in the width direction, and the two baffles are respectively connected to the two edges of the support plate in the length direction.

[0021] The end of the side plate away from the support plate is bent and extended in a direction parallel to the support plate to form the connecting plate; the first magnetic suction part abuts against the support plate, the side plate, the baffle and the connecting plate;

[0022] The side plate and the baffle have the protrusion on the side facing away from the limiting space, and the height of the side plate is greater than the height of the two baffles. In this embodiment, the connecting plate is formed by bending the side plate, and the side plate is located at the edge in the width direction. Its length dimension is greater than that of the baffle, and the length dimension of the connecting plate is also larger, so that there is enough surface to set a conductive layer and improve the stability of the conductive connection.

[0023] In one embodiment, the elastic conductive layer is conductive foam. Conductive foam is highly compressible, occupies little space, and provides a stable connection.

[0024] In one embodiment, a small shell is provided at the end of the first frame away from the first middle plate, and the display screen further includes a back side disposed opposite to the display surface. The guiding area is located on the back side, and the back side is connected to the periphery of the first surface of the first middle plate with adhesive. The adhesive is located between the first frame and the mounting groove, and the small shell abuts against the display surface.

[0025] In one embodiment, the second magnetic attraction part includes a housing and a magnet array. The housing of the second magnetic attraction part includes a support plate and a connecting plate. The magnet array of the second magnetic attraction part is accommodated and confined within the housing of the second magnetic attraction part. The support plate and the connecting plate of the second magnetic attraction part respectively abut against the opposite side surfaces of the magnet array of the second magnetic attraction part.

[0026] The connecting plate of the second magnetic attraction part is connected to a grounding member. The display screen is stacked on the first surface and the third surface, and the grounding member of the second magnetic attraction part is grounded to the display screen.

[0027] In this embodiment, the magnetic suction part is combined with a grounding component to ground the display screen and the first middle frame, thereby protecting the display screen. This improves the space utilization at the corner of the housing, saves the area of ​​the planar area, and can be used to increase the area of ​​the magnetic suction part and the adhesive area of ​​the display screen, thereby improving the magnetic attraction of the first housing and the second housing, as well as the reliability of the display screen connection at the corner. Attached Figure Description

[0028] To more clearly illustrate the technical solution of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 is a structural schematic diagram of the foldable electronic device provided in the first state according to an embodiment of this application;

[0030] Figure 2 is a schematic diagram of the structure of the foldable electronic device shown in Figure 1 in the second state;

[0031] Figure 3 is an exploded view of the structure at point A of the first embodiment of the foldable electronic device shown in Figure 2;

[0032] Figure 4 is a schematic diagram of a portion of the structure of the foldable electronic device shown in Figure 3;

[0033] Figure 5 is another angled schematic diagram of part of the structure of the foldable electronic device shown in Figure 3;

[0034] Figure 6 is a plan view of point A of the foldable electronic device shown in Figure 2;

[0035] Figure 7 is a cross-sectional schematic diagram of the foldable electronic device shown in Figure 6 at angle AA;

[0036] Figure 8 is a cross-sectional schematic diagram of the BB angle of the foldable electronic device shown in Figure 6;

[0037] Figure 9 is an exploded view of the structure at point A in the second embodiment of the foldable electronic device shown in Figure 2;

[0038] Figure 10 is a partial structural cross-sectional schematic diagram of the foldable electronic device shown in Figure 9. Detailed Implementation

[0039] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0040] Please refer to Figures 1 and 2. Figure 1 is a structural schematic diagram of the foldable electronic device provided in the embodiment of this application in the first state; Figure 2 is a structural schematic diagram of the foldable electronic device shown in Figure 1 in the second state.

[0041] The foldable electronic device shown in Figure 1 is in a folded state, and the foldable electronic device shown in Figure 2 is in a flattened state. Foldable electronic devices include, but are not limited to, cellphones, notebook computers, tablet computers, personal digital assistants (PDAs), or mobile devices. In this embodiment, a cellphone is used as an example of the foldable electronic device 1000 for illustration.

[0042] It should be noted that the angles illustrated in the embodiments of this application are allowed to have slight deviations. For example, the unfolding angle of the mobile phone shown in Figure 2 is 180 degrees, which means it can be exactly 180 degrees, or approximately 180 degrees, such as 170 degrees, 175 degrees, 185 degrees, and 190 degrees. The angles illustrated in the following text can be understood in the same way. For ease of description, the width direction of the foldable electronic device 1000 is defined as the X-axis direction, the length direction of the foldable electronic device 1000 is defined as the Y-axis direction, and the thickness direction of the foldable electronic device 1000 is defined as the Z-axis direction. The X-axis, Y-axis, and Z-axis directions are all perpendicular to each other.

[0043] It should be noted that the directional terms such as "top," "bottom," "left," "right," "front," and "rear" used in the description of the foldable electronic device 1000 in this application are mainly based on the orientation of the mobile phone shown in Figure 1. "Top" and "up" refer to the positive Z-axis direction, "bottom" and "down" refer to the negative Z-axis direction, "right" refers to the positive X-axis direction, "left" refers to the negative X-axis direction, "rear" refers to the positive Y-axis direction, and "front" refers to the negative Y-axis direction. These terms do not constitute a limitation on the orientation of the foldable electronic device 1000 in actual application scenarios.

[0044] Referring again to Figures 1 and 2, the foldable electronic device 1000 of this embodiment is an inward-folding mobile phone. The foldable electronic device 1000 includes a main body 100 and a display screen 300, with the display screen 300 mounted on the main body 100. The display screen 300 includes a display surface 301 and a back surface 302, which are positioned opposite to each other. The display surface 301 is used to display text, images, and videos. The display screen 300 of this embodiment is a foldable flexible display screen. A conductive area 303 is provided on the back surface 302, as shown in Figure 5, and the conductive area is used for grounding the display screen 300.

[0045] The foldable electronic device 1000 also includes functional components that enable the basic performance of the electronic device, such as a processor, memory, circuit board assembly (not shown), and power module; the processor, memory, circuit board assembly (not shown), and power module are housed within the main body 100. The processor and memory are both connected to the circuit board assembly, and the power module provides power to the flexible display screen 300, circuit board, processor, memory, and other electronic components. The circuit board assembly, camera module, power module, speaker, and other components can be referred to as an electronic component group.

[0046] In this embodiment, the main body 100 includes a first housing 10, a second housing 60, and a rotating mechanism 200. The rotating mechanism 200 is installed between the first housing 10 and the second housing 60, and is connected to both the first housing 10 and the second housing 60 to achieve a rotatable connection between them. A display screen connects the first housing 10 and the second housing 60 and covers the rotating mechanism 200. The first housing 10 and the second housing 60 can rotate relative to each other via the rotating mechanism 200, allowing the main body 100 to switch between a folded state and an unfolded state, thereby realizing the folding and unfolding of the display screen. In one embodiment, a second display screen (not shown) is also provided on the outside of the first housing 10 or the second housing 60. This second display screen is used for displaying and operating the phone when it is folded.

[0047] In one embodiment, the rotating mechanism 200 is a hinge. For example, the rotating mechanism 200 includes two connected hinges arranged sequentially along the Y-axis, with one hinge connected to the first housing 10 and the other connected to the second housing 60. In other embodiments, the rotating mechanism 200 consists of two connected and relatively rotatable shafts, with one shaft rotatably connected to the first housing 10 and the other shaft rotatably connected to the second housing 60, thereby enabling relative rotation between the first housing 10 and the second housing 60. In other embodiments, the rotating mechanism 200 can also be a rotating structure of other types, as long as it allows for free relative rotation and relative folding of the first housing 10 and the second housing 60.

[0048] In this embodiment, the first housing 10 includes a first middle frame 10a and a first outer shell 10b. The first outer shell 10b is connected to one side of the first middle frame 10a, and a space for accommodating circuit boards or batteries is formed between the first outer shell 10b and the first middle frame 10a. The second housing 60 includes a second middle frame 60a and a second outer shell 60b. The second outer shell 60b is connected to one side of the second middle frame 60a, and a space for accommodating circuit boards, batteries, cameras, or other devices is formed between the second outer shell 60b and the second middle frame 60a. The first outer shell 10b and the second outer shell 60b constitute the outer casing of the mobile phone. The first housing 10 also includes a first magnetic part 1, and the second housing 60 also includes a second magnetic part 2. The first magnetic part 1 can be located at two corner positions of the first housing 10; only one first magnetic part 1 is shown in the figure. Similarly, there can be two second magnetic parts 2. When the first housing 10 and the second housing 60 are folded, the first magnetic attraction part 1 and the second magnetic attraction part 2 are magnetically attracted to each other to position the first housing 10 and the second housing 60 and prevent them from being opened when folded. The first magnetic attraction part 1 and the second magnetic attraction part 2 are both magnet arrays, meaning that the magnetic attraction part consists of multiple magnets arranged and positioned as a whole by the housing. For example, the first magnetic attraction part 1 and the second magnetic attraction part 2 can be a Heilbeck magnet array.

[0049] In this embodiment, the first magnetic attraction part 1 and the second magnetic attraction part 2 are respectively located at the corner positions of the first housing 10 and the second housing 60. By utilizing the edges of the first housing 10 and the second housing 60—where these are not critical components such as the motherboard and battery compartment—the magnets are positioned to avoid the magnetic attraction parts occupying too much space, thus providing sufficient space for the motherboard, camera, and other components. Simultaneously, screws for fixing the motherboard or motherboard bracket, as well as adhesive for bonding the display screen to the main body, are also provided at the edges of the first housing 10 and the second housing 60. In other words, the edges of the first and second housings require space for the stacked arrangement of magnets, screws, and adhesive.

[0050] Please refer to Figures 3 and 4. Figure 3 is an exploded view of the structure at point A of the first embodiment of the foldable electronic device shown in Figure 2; Figure 4 is a schematic diagram of a portion of the structure of the foldable electronic device shown in Figure 3.

[0051] The first middle frame 10a includes a first middle plate 11 and a first frame 12, with the first frame 12 connected to the periphery of the first middle plate. The first middle plate 11 includes a first surface 111 and a second surface disposed opposite to the first surface 111. The first outer shell 10b covers the second surface. The display screen 300 is partially stacked on the first surface 111. The corner area of ​​the first frame 12 and the corner area of ​​the first middle plate 11 constitute the corner area of ​​the first middle frame 10a.

[0052] In this embodiment, the first middle frame 10a is rectangular. The first middle frame 10a includes a mounting groove 13 for accommodating the first magnetic part. The mounting groove 13 is recessed into the first surface 111 of the first middle plate 11. The mounting groove 13 is located in the corner area of ​​the first middle frame 10a. The mounting groove 13 includes a bottom wall 131, two first side walls 132, and a second side wall 133. Both the two first side walls 132 and the second side walls 133 are connected to the bottom wall 131. The two first side walls 132 are arranged opposite to each other, and the two second side walls 133 are arranged opposite to each other. The two first side walls 132 are respectively connected to the two second side walls 133 and surround the periphery of the bottom wall 131. Specifically, the mounting groove 13 is a rectangular groove that extends along the length of the first middle plate 11. The first middle frame 10a is provided with a first circuit board (not shown in the figure). The first circuit board can be a main board or a sub-board. The first circuit board is supported on the second surface. The mounting slot 13 is projected onto the first middle frame 10a between the first circuit board and the first frame 12. This location is typically the remaining space between the motherboard and the frame, where no components are mounted.

[0053] In other embodiments, the mounting slot 13 can also be an irregularly shaped slot, and its bottom wall can also be non-planar. For example, the mounting slot 13 can utilize the remaining space in the X-axis, Y-axis, and Z-axis directions of the corner area of ​​the first middle frame 10a to appropriately increase the volume of the mounting slot 13, thereby enhancing the magnetic force of the first magnetic attraction part. Alternatively, the remaining space can be used to avoid other components, such as screws for locking the motherboard bracket, display screen sealant, etc.

[0054] The second middle frame 60a also has a mounting groove (not shown in the figure) corresponding to the mounting groove 13. The mounting groove on the second middle frame 60a is used to fix the second magnetic part. For the specific structure, please refer to the first middle frame and the first magnetic part, which will not be described in detail here.

[0055] Please refer to Figures 3 and 5. Figure 5 is a schematic diagram of a portion of the structure of the foldable electronic device shown in Figure 3 from another angle. In this embodiment, the first magnetic attraction part 1 includes a magnet array 20 and a housing 30. The magnet array 20 includes multiple magnets with different magnetic properties. It should be noted that the magnet array 20 in the figure does not show multiple magnets, but is shown as a whole. The magnet array 20 in this embodiment is a Heilbeck magnet array. The magnetic field of the magnet array 20 can pass through the display screen 300 along the thickness direction of the electronic device. Specifically, the magnet array 20 includes a top surface 21, a bottom surface 22, two side surfaces 23 facing away from each other, and two end surfaces 24 facing away from each other. The top surface 21 and the bottom surface 22 are facing away from each other. The two end surfaces 24 are respectively connected to the two side surfaces 23. Both the two end surfaces 24 and the two side surfaces 23 are connected to the top surface 21 and the bottom surface 22. Exemplarily, the magnet array 20 has a rectangular structure.

[0056] The outer casing 30 is made of a conductive material and can support the magnet array 20 without affecting the magnet performance. The outer casing 30 includes a support plate 31, side plates 32, and two baffles 34. The side plates 32 and the two baffles 34 are all connected to the support plate 31. In this embodiment, the support plate 31 is a rectangular sheet. The side plate 32 is connected to one side of the support plate 31 in the width direction, and the side plate 32 is set at an angle to the support plate 31, approximately 90 degrees. The two baffles 34 are respectively connected to two edges of the support plate 31 in the length direction, and the two baffles 34 are set at an angle to the support plate 31, approximately 90 degrees. The side plates 32 and the two baffles 34 are spaced apart, and the height of the side plate 32 is greater than the height of the two baffles 34. It can be understood that the side plates 32 and the two baffles 34 can be referred to as the peripheral side plates of the outer casing 30.

[0057] A connecting plate 33 extends from the end of the side plate 32 away from the support plate 31 in a direction parallel to the support plate 31. The connecting plate 33 is set at an angle to the side plate 32, which is approximately 90 degrees. Alternatively, the connecting plate 33 can be understood as being connected to the side plate 32 of the outer casing 30. The connecting plate 33 is spaced apart from the two baffles 34 and is spaced relative to the support plate 31 in the Z-axis direction. The support plate 31, side plate 32, connecting plate 33, and two baffles 34 form a limiting space 35. In this embodiment, the outer casing 30 is a one-piece molded part.

[0058] The magnet array 20 is installed in the limiting space 35. The top surface 21 and the bottom surface 22 abut against the connecting plate 33 and the bearing plate 31 respectively. The two end faces abut against the two baffles 34 respectively. The side plate 32 abuts against one side surface 23.

[0059] In one embodiment, the side plate 32 has a first protrusion 321 protruding from its surface facing away from the support plate 31 (limiting space 35). The two baffles 34 have a second protrusion 341 protruding from their surfaces facing away from the support plate 31 (limiting space 35). The first protrusion 321 and the second protrusion 341 are used to abut against the wall of the mounting groove.

[0060] In this embodiment, the foldable electronic device further includes a grounding component, which comprises a conductive layer 40 and an elastic conductive layer 50. The conductive layer 40 is a coating formed of a conductive material; it is shown separately in the figure for clarity. Specifically, the conductive layer 40 is coated on the surface of the connecting plate 33 of the outer casing 30 facing away from the support plate 31, and can be silver paste. The elastic conductive layer 50 is conductive foam with a certain elastic compression capacity. In this embodiment, the conductive layer 40 and the elastic conductive layer 50 are stacked on the connecting plate 33, and their area is the same as that of the pressure plate. In one embodiment, the elastic conductive layer 50 may be omitted.

[0061] Referring to Figures 6, 7 and 8, Figure 6 is a plan view of point A of the foldable electronic device shown in Figure 2; Figure 7 is a cross-sectional view of angle AA of the foldable electronic device shown in Figure 6; and Figure 8 is a cross-sectional view of angle BB of the foldable electronic device shown in Figure 6.

[0062] The first magnetic suction part 1 is inserted into the mounting groove 13. The support plate 31 is stacked with the bottom wall 131 of the groove. Two baffles 34 are respectively opposite to the two first groove side walls 132. The side plate 32 is opposite to a second groove side wall 133. The connecting plate 33 is located at the groove opening of the mounting groove 13. It can protrude from the first surface or be flush with the first surface. The conductive layer 40 is located on the surface of the connecting plate 33 exposed in the mounting groove 13. The elastic conductive layer 50 is connected to and covers the conductive layer 40. The two second groove side walls 133 and the two first groove side walls 132 can be positioned by contact friction with the side plate 32 and baffles 34 of the outer shell 30. That is, the outer shell 30 and the mounting groove 13 are fixed by friction. When the side plate 32 is provided with a first protrusion 321 and the baffle 34 is provided with a second protrusion 341, the first protrusion 321 and the second protrusion 341 are connected to the second groove sidewall 133 and the first groove sidewall 132 in an interference connection. The first protrusion 321 abuts against the second groove sidewall 133, and the second protrusion 341 abuts against the first groove sidewall 132, realizing the contact and positioning of the outer shell 30 and the mounting groove 13, further preventing the first magnetic part from detaching from the mounting groove 13. The first protrusion 321 and the second protrusion 341 also further improve the conductive stability between the outer shell 30 and the first middle plate 11.

[0063] The display screen 300 is mounted on the first middle frame 10a and the second middle frame 60a, and covers the rotating mechanism 200. The display screen 300 covers the first surface and the third surface. The first frame 12 of the first middle frame 10a also includes a small shell 125, which is located at the end of the first frame 12. The small shell 125 is connected to the edge of the display screen 300 and clamps the display screen with the first middle plate 11. The edge of the back surface 302 of the display screen is connected to the first middle plate 11 and the small shell 125 with an adhesive backing 126, which can fix the display screen 300 and seal the small shell 125 between the display screen and the display screen. The conductive area 303 of the display screen 300 faces the first magnetic part, and the elastic conductive layer 50 is located between the conductive layer 40 and the conductive area 303, and the elastic conductive layer 50 is compressed by the display screen 300. The grounding path of the display screen 300 passes through the conductive area 303, the elastic conductive layer 50, and the conductive layer 40 to the connecting plate 33, that is, through the conductive area 303, the elastic conductive layer 50, and the conductive layer 40 to the outer shell 30. Since the outer shell 30 has conductive properties and is in contact with the mounting groove 13, which is formed on the first middle plate, the display screen 300 passes through the conductive area 303, the elastic conductive layer 50, and the conductive layer 40 to the outer shell 30. The outer shell 30 is connected to the first middle plate 11 to achieve grounding; thereby guiding static electricity to the middle frame, so that the static electricity entering the display screen is discharged on the middle frame.

[0064] In this embodiment, the grounding of the display screen 300 can be achieved simply by connecting the outer shell 30 of the conductive part and the magnetic part to the grounding of the display screen 300 and the first middle plate 11. Given the increasingly limited space for screen grounding in the corner of a mobile phone, the grounding of the display screen 300 does not require additional space in the first middle frame 10a, thus meeting the screen grounding requirements and providing more space for magnets, screws, and adhesive. In other words, using the outer shell 30 as the conductive structure for grounding the display screen and the middle frame greatly improves the space utilization in the corner area (corner region), saving the layout area of ​​the first middle frame's planar area. The saved space can effectively increase the area of ​​the magnet and the area of ​​the screen bonding area, improving the overall magnetic force and the reliability of the corner screen. Furthermore, the conductive area 303 is recessed compared to the entire back surface, and the thickness of the conductive part can utilize the space between the back of the display screen 300 and the first surface 111 of the first middle plate 11. That is, when the adhesive 126 is connected to the first surface 111, a thickness space is generated, and the conductive part can have the same thickness as the adhesive, thus not occupying space in the thickness direction of the electronic device. In other embodiments, the connecting plate 33 and the conductive layer 40 can both be located within the mounting groove 13, as long as the elastic conductive layer 50 can be connected to the conductive area 303; this will not occupy the thickness space of the electronic device.

[0065] Please refer to Figures 9 and 10. Figure 9 is an exploded view of the structure at point A of the second embodiment of the foldable electronic device shown in Figure 2; Figure 10 is a partial cross-sectional view of the foldable electronic device shown in Figure 9.

[0066] In this embodiment, the structure of the outer shell 30 of the first magnetic attraction part and the connection method between the first magnetic attraction part and the display screen differ from the embodiment shown in FIG3. As shown in FIG9, the outer shell 30 includes a support plate 31, a side plate 32, two baffles, and a guide spring 38. The two baffles are a first baffle 34 and a second baffle 36. In this embodiment, the support plate 31 is a rectangular sheet. The side plate 32 is connected to the edge of the support plate 31 in the width direction, and the side plate 32 is set at an angle to the support plate 31, which is approximately 90 degrees. The first baffle 34 and the second baffle 36 are respectively connected to the two edges of the support plate 31 in the length direction, and the two baffles 34 are set at an angle to the support plate 31, which is approximately 90 degrees. The side plate 32 and the two baffles 34 are spaced apart, and the heights of the second baffle 36, the side plate 32, and the first baffle 34 are approximately the same.

[0067] A connecting plate 33 extends from the end of the second baffle 36 away from the support plate 31 and bends parallel to the support plate 31. The connecting plate 33 is set at an angle to the second baffle 36, which is approximately 90 degrees. The connecting plate 33 and the support plate 31 are spaced apart and opposite each other in the Z-axis direction. It can be understood that the connecting plate 33 can also be part of the second baffle 36. It can also be understood that the second baffle 36 is part of the connecting plate. The support plate 31, the side plate 32, the first baffle 34, the second baffle 36, and the connecting plate 33 form a limiting space 35. In this embodiment, the outer shell 30 is a one-piece molded part. The side plate 32 is provided with a first protrusion 321. The first baffle 34 is provided with a second protrusion 341, and the second baffle 36 is provided with a third protrusion 361. The first protrusion 321, the second protrusion 341, and the third protrusion 361 all protrude away from the limiting space 35.

[0068] One end of the guide spring 38 is connected to the free end of the connecting plate 33, and the guide spring 38 extends away from the connecting plate 33 towards the limiting space 35. The guide spring 38 is a strip-shaped piece, and its free end away from the connecting plate 33 is raised relative to the bearing plate 31, that is, in the Z-axis direction (the thickness direction of the first middle frame 10a), the free end of the guide spring 38 is raised away from the bearing plate 31; the guide spring 38 is elastic and deformable in the Z-axis direction. A guide protrusion 381 protrudes from the end face of the free end of the guide spring 38 facing away from the bearing plate 31. It can be understood that the guide spring is a grounding component.

[0069] The magnet array 20 is installed in the limiting space 35. The top surface 21 and the bottom surface 22 abut against the connecting plate 33 and the bearing plate 31, respectively. The two end surfaces 24 abut against the first baffle 34 and the second baffle 36, respectively. The side plate 32 abuts against one side surface 23. The guide spring 38 is raised away from the top surface 21.

[0070] As shown in Figure 10, the first magnetic suction part 1 is inserted into the mounting groove 13. The support plate 31 is stacked with the bottom wall 131 of the groove. The first baffle 34 and the second baffle 36 are respectively opposite to the two first groove side walls 132. The side plate 32 is opposite to a second groove side wall 133. The connecting plate 33 is located at the groove opening of the mounting groove 13, which can be flush with the first surface 111 or located inside the mounting groove 13. The guide spring 38 protrudes from the mounting groove 13. The first protrusion 321 and the second protrusion 341 abut against a second groove side wall 133 and a first groove side wall 132, respectively. The third protrusion 361 abuts against another first groove side wall 132, realizing the contact and positioning of the outer shell 30 with the mounting groove 13, and preventing the first magnetic suction part from detaching from the mounting groove 13. The first protrusion 321 and the second protrusion 341 can also realize the guiding function between the outer shell 30 and the first middle plate 11.

[0071] The display screen 300 is mounted on the first middle frame 10a and the second middle frame 60a, and covers the rotating mechanism 200. The display screen 300 covers the first surface and the third surface. The guiding area 303 of the display screen 300 faces the first magnetic part, and the guiding protrusion 381 of the guiding spring 38 abuts against the guiding area 303. The guiding spring 38 is deformed by the display screen 300 pressing against the top surface 21 of the magnet array 20. The guiding spring 38 has a certain rebound force, thereby ensuring the stability of the contact between the guiding spring 38 and the guiding area 303. The grounding path of the display screen 300 goes through the conductive area 303 and the conductive spring 38 to the second baffle 36, that is, through the conductive area 303 and the conductive spring 38 to the outer shell 30. Since the outer shell 30 has conductive properties and the outer shell is in contact with the mounting groove 13, and the mounting groove 13 is formed on the first middle plate, the display screen 300 goes through the conductive area 303 and the conductive spring 38 to the outer shell 30, and the outer shell 30 is connected to the first middle plate 11 to achieve grounding.

[0072] The structure of the magnetic part of the second middle frame 60a in this embodiment and its connection method with the second middle plate and the display screen 300 can refer to the structure of the first magnetic part and its connection method with the first middle plate and the display screen 300 described in any of the above embodiments.

[0073] In this embodiment, the grounding of the display screen 300 can be achieved simply by connecting the outer shell 30 of the conductive part and the magnetic part to the first middle plate 11. Given the increasingly limited space available for screen grounding in the corner of a mobile phone, the grounding of the display screen 300 does not require additional space in the first middle frame 10a, thus meeting the screen grounding requirements and providing more space for magnets, screws, and adhesive. In other words, using the outer shell 30 as the grounding component between the display screen and the middle frame significantly improves the space utilization in the corner area (corner region), saving the layout area of ​​the first middle frame's planar area. This saved space can effectively increase the area of ​​the magnets and the screen bonding area, improving the overall magnetic force and the reliability of the corner screen. Furthermore, in this embodiment, the conductive spring 38 is raised relative to the magnet array 20 and can elastically deform, not only without occupying extra space but also ensuring the stability of the connection; and the connection between the entire outer shell 30 and the display screen 300 is simple.

[0074] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A foldable electronic device, characterized by, The foldable electronic device comprises a display screen, a first magnetic attraction part, a second magnetic attraction part, a first shell and a second shell rotationally connected with the first shell, the display screen is provided with a display surface and a guide connection area arranged opposite to the display surface, The first shell comprises a first middle plate and a first frame connected to the edge of the first middle plate, the first shell comprises a corner area, the first middle plate comprises a first surface and a mounting groove, the mounting groove is concavely arranged on the first surface and located at the corner area of the first shell; The second shell comprises a third surface and a corner area, the third surface is provided with a mounting groove, the second magnetic attraction part is accommodated in the mounting groove of the third surface and located at the corner area of the second shell; The first magnetic attraction part comprises a shell and a magnet array, the shell comprises a bearing plate and a connecting plate spaced apart from the bearing plate; the magnet array is accommodated and limited in the shell, and the bearing plate and the connecting plate abut the two side surfaces of the magnet array respectively; The connecting plate is connected with a grounding piece, the first magnetic attraction part is accommodated in the mounting groove, the shell is in contact with the groove wall of the mounting groove, the grounding piece is exposed from the first surface, the display screen is stacked on the first surface and the third surface, the grounding piece abuts and conducts with the guide connection area, The first shell and the second shell are relatively rotated and folded, the display screen can be folded and accommodated between the first shell and the second shell, and the first magnetic attraction part and the second magnetic attraction part are opposite and attracted.

2. The foldable electronic device of claim 1, wherein, The grounding piece comprises a conductive layer formed on the surface of the connecting plate away from the bearing plate; or the grounding piece comprises a guide spring, one end of the guide spring is connected to the free end of the connecting plate, the guide spring extends into the shell, and the guide spring is raised relative to the bearing plate.

3. The foldable electronic device of claim 2, wherein, The free end of the guide spring away from the end surface of the bearing plate is provided with a guide protrusion, and the guide protrusion abuts the guide connection area.

4. The foldable electronic device of claim 2, wherein, The grounding piece further comprises an elastic guide layer, and the elastic guide layer is clamped between the conductive layer and the guide connection area.

5. The foldable electronic device of claim 2, wherein, The shell further comprises a circumferential side plate, the circumferential side plate is connected to the edge of the bearing plate, the connecting plate is connected to one end of the circumferential side plate away from the bearing plate, and the circumferential side plate, the connecting plate and the bearing plate form a limiting space for accommodating the first magnetic attraction part; wherein one side of the circumferential side plate away from the limiting space is provided with a protrusion, and the protrusion abuts the groove side wall of the mounting groove.

6. The foldable electronic device of claim 5, wherein, The shell comprises a side plate, a first baffle and a second baffle; the side plate is connected to the edge of the bearing plate in the width direction, the first baffle and the second baffle are respectively connected to the two edges of the bearing plate in the length direction, The end of the second baffle away from the bearing plate extends away from the bearing plate and is bent to form the connecting plate; the first magnetic attraction part abuts the bearing plate, the side plate, the first baffle, the second baffle and the connecting plate; One side of the side plate, the first baffle and the second baffle away from the limiting space is provided with the protrusion.

7. The foldable electronic device of claim 5, wherein, The shell comprises a side plate and two baffle plates; the side plate is connected to the edges of the bearing plate in the width direction, and the two baffle plates are connected to the two edges of the bearing plate in the length direction, The side plate is bent and extended away from the end of the bearing plate in a direction parallel to the bearing plate to form the connecting plate; the first magnetic attraction part abuts against the bearing plate, the side plate, the baffle plate and the connecting plate; The side plate and the baffle plate are provided with the protrusions on the side away from the limiting space; the height of the side plate is greater than the height of the two baffle plates.

8. The foldable electronic device of claim 1, wherein, The elastic conductive layer is conductive foam.

9. The foldable electronic device of any of claims 1-8, wherein, The end of the first frame away from the first middle plate is provided with a small shell; the display screen further comprises a back surface provided away from the display surface; the conductive area is located on the back surface; the back surface and the first surface of the first middle plate are connected with back adhesive around the edge; the back adhesive is located between the first frame and the mounting groove; and the small shell abuts against the display surface.

10. The foldable electronic device of any of claims 1-8, wherein, The second magnetic attraction part comprises a shell and a magnet array; the shell of the second magnetic attraction part comprises a bearing plate and a connecting plate; the magnet array of the second magnetic attraction part is accommodated and limited in the shell of the second magnetic attraction part; the bearing plate and the connecting plate of the second magnetic attraction part abut against the two side surfaces away from the magnet array of the second magnetic attraction part, respectively; The connecting plate of the second magnetic attraction part is connected with a grounding part; the display screen is stacked on the first surface and the third surface; and the grounding part of the second magnetic attraction part is grounded with the display screen.

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