Electronic device

Abstract

The application relates to the technical field of terminals, and discloses an electronic device. The electronic device of the application comprises a first magnet and a first device, the first magnet is used for being attracted to a second magnet on a matched device, so that the first device and a second device on the matched device are coupled. Moreover, the first magnet is embedded on the back cover of the electronic device, so that when the first magnet and the second magnet are attracted, the back cover does not block the first magnet, so that the magnetic attraction strength of the first magnet is improved. Moreover, the thickness of the first magnet coincides with the thickness of the back cover, so that the thickness space of the electronic device is not additionally occupied, and the thinness of the electronic device is ensured.

Description

Technical Field

[0001] This application relates to the field of terminal technology, and in particular to an electronic device. Background Technology

[0002] Electronic devices (such as mobile phones, wearable devices, etc.) and their accessories (such as charging accessories) can usually be magnetically connected to enable wireless charging, plug docking, error prevention, and safety protection.

[0003] However, in order to provide a good magnetic attraction effect, the magnetic area on current electronic devices needs to occupy a large area, and the magnetic attraction force is relatively weak, which affects the compatibility and connection between the main unit of the electronic device and its accessories. Utility Model Content

[0004] An embodiment of this application provides an electronic device.

[0005] To improve the magnetic attraction strength of magnets configured on electronic devices and reduce the thickness of electronic devices, embodiments of this application adopt the following technical solutions:

[0006] In a first aspect, embodiments of this application provide an electronic device including a back cover, a first device, and a first magnet. The back cover forms a receiving cavity for the electronic device, and the first device is located in the receiving cavity or on the back cover. The back cover includes a body layer and a decorative layer stacked on top of each other, with the decorative layer located on the side of the body layer facing away from the receiving cavity. The first magnet is embedded in the body layer. The first magnet is used to engage with a second magnet in a mating device, and when the first magnet and the second magnet are engaged, the first device is coupled to the second device in the mating device.

[0007] In some embodiments of this application, the first magnet is embedded in the back cover. Therefore, the first magnet does not need to occupy additional thickness space in the electronic device, thereby reducing the thickness of the electronic device and ensuring its slimness. Furthermore, when the first magnet is attracted to the second magnet on the paired device, the absence of the back cover increases the attraction force of the first magnet. A decorative layer can also be provided on the back cover to conceal the first magnet and maintain the aesthetics of the electronic device.

[0008] In one possible implementation of the first aspect described above, the first magnet and the main body layer of the back cover are an integral structure.

[0009] In one possible implementation of the first aspect described above, the magnetization direction of the first magnet is parallel to the direction of the thickness of the back cover.

[0010] In some embodiments of this application, magnetizing the first magnet along the thickness direction of the back cover can ensure the magnetic attraction strength of the first magnet along the thickness direction of the back cover, thereby improving the attraction force between the first magnet and the second magnet.

[0011] In one possible implementation of the first aspect described above, the first magnet penetrates the main body layer along the thickness direction of the rear cover.

[0012] In one possible implementation of the first aspect described above, the first device is a wireless charging coil or an electrical connector.

[0013] Secondly, embodiments of this application provide an electronic device including a back cover, a first device, and a first magnet assembly. The back cover forms a receiving cavity for the electronic device, and the first device is located in the receiving cavity or on the back cover. The first magnet assembly is used to engage with a second magnet assembly in a mating device, and when the first and second magnet assemblies engage, the first device is coupled to the second device in the mating device. The first magnet assembly includes a first arc-shaped magnet assembly and a second arc-shaped magnet assembly. The openings of the first and second arc-shaped magnet assemblies are disposed opposite each other along a first direction. The first ends of the first and second arc-shaped magnet assemblies are opposite each other, and the second ends of the first and second arc-shaped magnet assemblies are opposite each other. The first direction intersects the thickness direction of the electronic device. A first strip magnet assembly extends along the first direction and is located between the first ends of the first and second arc-shaped magnet assemblies. A second strip magnet assembly extends along the first direction and is located between the second ends of the first and second arc-shaped magnet assemblies. The first arc-shaped magnet assembly includes multiple planar multipole magnets arranged along its circumference, and the second arc-shaped magnet assembly includes multiple planar multipole magnets arranged along its circumference. The magnetization direction of each planar multipole magnet is a second direction, which is perpendicular to the first direction.

[0014] In some embodiments of this application, the first arc-shaped magnet assembly, the second arc-shaped magnet assembly, the first strip magnet assembly, and the second strip magnet assembly arranged on the electronic device can be similar to a racetrack shape. This improves the compactness of the first magnet assembly, reduces the space occupied by the first magnet assembly, and thus reduces the impact of the first magnet assembly on the layout of electronic components inside the electronic device. Furthermore, the first arc-shaped magnet assembly and the second arc-shaped magnet assembly can ensure the alignment center of the first magnet assembly, and the first strip magnet assembly and the second strip magnet assembly can ensure the alignment angle of the first magnet assembly, thereby improving the alignment effect of the first magnet assembly. Additionally, the first arc-shaped magnet assembly and the second arc-shaped magnet assembly include multiple planar multipole magnets, thereby improving the alignment accuracy of the first arc-shaped magnet assembly and the second arc-shaped magnet assembly.

[0015] In one possible implementation of the second aspect described above, among the plurality of planar multipole magnets in the first arc-shaped magnet assembly, the magnetization directions of two planar multipole magnets that are adjacent to each other along the circumference of the first arc-shaped magnet assembly are the same.

[0016] In one possible implementation of the second aspect described above, among the plurality of planar multipole magnets in the first arc-shaped magnet assembly, the magnetization directions of two planar multipole magnets that are adjacent to each other along the circumference of the first arc-shaped magnet assembly are opposite.

[0017] In one possible implementation of the second aspect described above, each planar multipole magnet in the first arc-shaped magnet assembly includes a first magnetic attractor, a second magnetic attractor, and a first auxiliary magnet. The first and second magnetic attractors are arranged radially spaced along the first arc-shaped magnet assembly, and the first auxiliary magnet is located between the first and second magnetic attractors. The first magnetic attractor, the second magnetic attractor, and the first auxiliary magnet form a Heilbeck magnet.

[0018] In some embodiments of this application, the first magnetic attracting element, the second magnetic attracting element, and the first auxiliary magnet of the first arc-shaped magnet assembly can form a Heilbeck magnet, thereby increasing the magnetic attraction strength per unit area of ​​the attraction surface of the first magnet assembly and thus improving the magnetic attraction effect.

[0019] In one possible implementation of the second aspect described above, the first bar magnet assembly includes at least one bar Helbeck magnet, and the second bar magnet assembly includes at least one bar Helbeck magnet, with the magnetic field enhancement side and magnetic field depletion side of each bar Helbeck magnet disposed opposite to each other along a second direction. Furthermore, the magnetic field enhancement side of each bar Helbeck magnet is used to engage with the second magnet assembly.

[0020] In some embodiments of this application, at least one of the first and second bar magnet assemblies, a bar Helbeck magnet, can further enhance the magnetic attraction strength on the attraction surface of the first magnet assembly.

[0021] In one possible implementation of the second aspect described above, at least one bar-shaped Hellbeck magnet of the first bar magnet assembly includes a first bar-shaped Hellbeck magnet and a second bar-shaped Hellbeck magnet. The first bar-shaped Hellbeck magnet and the second bar-shaped Hellbeck magnet are arranged adjacent to each other along a first direction, and the length direction of the first bar-shaped Hellbeck magnet is parallel to the first direction, and the length direction of the second bar-shaped Hellbeck magnet is also parallel to the first direction.

[0022] In one possible implementation of the second aspect described above, at least one Hellbeck magnet in the first strip magnet assembly includes a first strip Hellbeck magnet and a second strip Hellbeck magnet. The first strip Hellbeck magnet and the second strip Hellbeck magnet are arranged adjacent to each other along a first direction, with the length direction of the first strip Hellbeck magnet parallel to the first direction and the length direction of the second strip Hellbeck magnet perpendicular to the first direction.

[0023] In one possible implementation of the second aspect described above, the first strip magnet assembly further includes a planar multipole magnet, wherein the planar multipole magnet and the first Heilbeck magnet are arranged adjacent to each other along the first direction.

[0024] In one possible implementation of the second aspect described above, along the first direction, the first strip magnet assembly and the first arc-shaped magnet assembly are spaced apart at their first ends, and the first strip magnet assembly and the second arc-shaped magnet assembly are spaced apart at their first ends. Along the first direction, the second strip magnet assembly and the second arc-shaped magnet assembly are spaced apart at their second ends, and the second strip magnet assembly and the second arc-shaped magnet assembly are spaced apart at their second ends.

[0025] In some embodiments of this application, the first magnet assembly can be similar to a racetrack shape. Therefore, electronic devices can be disposed in the central region of the first magnet assembly, for example, the first device can be disposed in the middle of the first magnet assembly. This allows for the creation of wiring sections on the first magnet assembly to arrange the connecting lines of the electronic devices, thereby improving the space utilization of the electronic device and preventing the connecting lines from occupying the thickness space of the electronic device by bypassing the first magnet assembly along the thickness direction, thus ensuring the thinness and lightness of the electronic device. Therefore, the intervals between the first ends of the first strip magnet assembly and the first arc-shaped magnet assembly, the intervals between the first ends of the first strip magnet assembly and the second arc-shaped magnet assembly, the intervals between the second ends of the second strip magnet assembly and the first arc-shaped magnet assembly, and the intervals between the second ends of the second strip magnet assembly and the second arc-shaped magnet assembly can be defined as wiring sections.

[0026] In one possible implementation of the second aspect described above, along a first direction, a first strip magnet assembly is connected to a first end of a first arc-shaped magnet assembly, and the first strip magnet assembly is connected to a first end of a second arc-shaped magnet assembly. The first strip magnet assembly includes at least two first strip magnetic attractors, which are spaced apart along the first direction. Along the first direction, a second strip magnet assembly is connected to a second end of the first arc-shaped magnet assembly, and the second strip magnet assembly is connected to a second end of the second arc-shaped magnet assembly. The second strip magnet assembly includes at least two second strip magnetic attractors, which are spaced apart along the first direction.

[0027] In some embodiments of this application, the first strip magnet assembly is connected to both the first arc magnet assembly and the second arc magnet assembly, and the second strip magnet assembly is connected to both the first and second arc magnet assemblies. Therefore, trace segments can be provided on the first and second strip magnets. For example, the trace segments can divide the first strip magnet assembly into multiple first strip magnetic components, and the trace segments can also divide the second strip magnet assembly into multiple second strip magnetic components.

[0028] In one possible implementation of the second aspect described above, the electronic device further includes a motherboard disposed within a receiving cavity. Along the thickness direction of the electronic device, a first magnet assembly is located between the motherboard and the rear cover, and the projection of the first magnet assembly along the thickness direction of the electronic device at least partially overlaps with the projection of the motherboard along the thickness direction.

[0029] In some embodiments of this application, the battery and motherboard of the electronic device are arranged such that the motherboard is in the middle of the electronic device, and the motherboard and the first magnet assembly are stacked along the thickness direction. The motherboard occupies less space along the thickness direction, which can increase the thickness of the first magnet assembly and thus increase the magnetic force of the first magnet assembly.

[0030] In one possible implementation of the second aspect described above, the electronic device further includes a battery disposed in a receiving cavity, wherein the projection of the first magnet assembly along the thickness direction of the electronic device does not overlap with the projection of the battery along the thickness direction of the electronic device.

[0031] In some embodiments of this application, the first magnet assembly does not need to be stacked with the battery along the thickness direction of the electronic device, thereby reducing the overall thickness of the electronic device and making the electronic device thinner and lighter.

[0032] In one possible implementation of the second aspect described above, the first magnet assembly is disposed in the middle region along the length of the rear cover.

[0033] For example, in some embodiments of this application, the dimension of the central region along the length of the back cover is 1 / 3 to 2 / 3 of the length of the back cover.

[0034] In one possible implementation of the second aspect described above, the projections of the first strip magnet assembly, the second strip magnet assembly, the first arc magnet assembly, and the second arc magnet assembly along the thickness direction of the back cover surround the projection of the first device along the thickness direction of the back cover.

[0035] In one possible implementation of the second aspect described above, the first magnet assembly is disposed on the rear cover. Attached Figure Description

[0036] Figure 1A A schematic diagram of the rear structure of an electronic device is shown;

[0037] Figure 1B A schematic diagram of the rear structure of a pairing device is shown;

[0038] Figure 1C A schematic diagram of the cross-sectional structure of an electronic device is shown. Figure 1A (A-section diagram);

[0039] Figure 1DA schematic diagram of the structure of a first magnet on an electronic device is shown;

[0040] Figure 2A A schematic diagram of the back structure of an electronic device is shown;

[0041] Figure 2B A schematic diagram of a structure in which a magnetic attraction element is arranged around the periphery of a first device 40 is shown;

[0042] Figure 3A According to some embodiments of this application, a schematic diagram of the structure of an electronic device is shown;

[0043] Figure 3B According to some embodiments of this application, a flowchart of an implementation of processing the first magnet 50 and the back cover 10 is shown;

[0044] Figure 4 According to some embodiments of this application, a schematic diagram of the layout structure of a magnet on an electronic device is shown;

[0045] Figure 5A According to some embodiments of this application, a structural schematic diagram of a magnet assembly 50 is shown;

[0046] Figure 5B According to some embodiments of this application, it is shown that Figure 5A Schematic diagram of cross-sectional structure ( Figure 5A (Schematic diagram of the BB section in the diagram);

[0047] Figure 5C A schematic diagram of the structure of a magnet assembly 50 is shown in some embodiments of this application;

[0048] Figure 5D According to some embodiments of this application, it is shown that Figure 5A Schematic diagram of cross-sectional structure ( Figure 5A (Schematic diagram of the CC section in the diagram);

[0049] Figure 6A According to some embodiments of this application, a structural schematic diagram of a magnet assembly 50 is shown in Figure 3;

[0050] Figure 6B According to some embodiments of this application, a cross-sectional structural schematic diagram of a magnet assembly 50 is shown. Figure 6A (Cross-sectional view of DD in the middle);

[0051] Figure 6C According to some embodiments of this application, a schematic diagram of the structure of a magnet assembly 50 is shown. Figure 4 ;

[0052] Figure 7AAccording to some embodiments of this application, a schematic diagram of a structure in which an NS array is disposed in a bar magnet assembly is shown;

[0053] Figure 7B According to some embodiments of this application, a schematic diagram of a magnet assembly 50 structure is shown in Figure 5;

[0054] Figure 7C According to some embodiments of this application, a schematic diagram of a magnet assembly 50 structure is shown in Figure 6;

[0055] Figure 7D According to some embodiments of this application, a schematic diagram of a magnet assembly 50 structure is shown in Figure 7;

[0056] Figure 7E According to some embodiments of this application, a schematic diagram of a magnet assembly 50 structure is shown. Figure 8 ;

[0057] Figure 7F According to some embodiments of this application, a schematic diagram nine of a magnet assembly 50 structure is shown;

[0058] Figure 7G According to some embodiments of this application, a schematic diagram of a magnet assembly 50 structure is shown.

[0059] Figure 7H According to some embodiments of this application, a schematic diagram of a magnet assembly 50 structure is shown eleven;

[0060] Figure 8 A schematic diagram of a magnet assembly 50 structure is shown in XII according to some embodiments of this application;

[0061] Figure 9A According to some embodiments of this application, a schematic diagram of a centrally located motherboard 20 of an electronic device is shown.

[0062] Figure 9B According to some embodiments of this application, a schematic diagram of an electronic device including a battery 30 is shown. Detailed Implementation

[0063] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0064] This application provides an electronic device in which a magnet can be embedded in the back cover of the electronic device, so that the magnet does not need to be separated from the magnet on the corresponding pairing device of the electronic device for magnetic attraction, thereby increasing the magnetic attraction of the magnet on the back cover of the electronic device and reducing the space occupied by the magnet in the thickness direction, thus ensuring the thinness and lightness of the electronic device.

[0065] The electronic devices in this application embodiment can be mobile phones, wearable devices, tablets, virtual reality (VR) devices, augmented reality (AR) devices, devices in industrial control, devices in smart cities, smart homes, etc., which are connected to their accessories via magnetic attraction.

[0066] For example, Figures 1A to 1D A schematic diagram of the structure of an electronic device and a pairing device is shown, wherein, Figure 1A A schematic diagram of the rear structure of an electronic device is shown. Figure 1B A schematic diagram of the rear structure of a pairing device is shown. Figure 1C A schematic diagram of the cross-sectional structure of an electronic device is shown. Figure 1A (A-section diagram) Figure 1D A schematic diagram of the structure of a first magnet on an electronic device is shown.

[0067] In the figures of this document, the X direction represents the width of the electronic device 100, the Y direction represents the length of the electronic device 100, and the Z direction represents the thickness of the electronic device 100. The X, Y, and Z directions intersect each other. For example, the X, Y, and Z directions can be perpendicular to each other. In this application, the height or thickness dimension refers to the dimension along the Z direction, which will not be elaborated further below.

[0068] It is understood that the parallelism in this application is not absolute parallelism. Approximate parallelism due to processing and assembly errors is also within the scope of parallelism in this application. For example, when the included angle between two structural features is less than or equal to 2° (e.g., 0.1°, 0.2°, 2°, etc.), they can be considered parallel. Similarly, the perpendicularity in this application is not absolute perpendicularity. Approximate perpendicularity due to processing and assembly errors is also within the scope of perpendicularity in this application. For example, when the included angle between two structural features is 88° to 92° (e.g., 88°, 89°, 91°, etc.), they can be considered perpendicular. The limitations on parallelism and perpendicularity will not be repeated below.

[0069] Additionally, it should be noted that the directional terms such as "upper," "lower," "left," "right," "front," "rear," "top," and "bottom" used in this document refer to the orientation of the electronic device 100 in its normal operating state (for example, in its normal operating state, the rear cover 10 mentioned below is located on the back of the electronic device 100), and do not indicate or imply that the component referred to must have a specific orientation. These orientations may change accordingly depending on actual use and should not be construed as limitations on this application.

[0070] Reference Figure 1A and Figure 1C The electronic device 100 includes a back cover 10, a motherboard 20, a battery 30, a first device 40, a first magnet 50, and a display screen 60. (See reference...) Figure 1B and Figure 1C The pairing device 200 can be a rectangular block-like structure. The width direction of the pairing device 200 can be the x-direction, the length direction can be the y-direction, and the thickness direction can be the z-direction. The x, y, and z directions can be perpendicular to each other. When the pairing device 200 and the electronic device 100 are engaged, refer to... Figure 1C The x-direction and the X-direction are the same direction, and the Z-direction and the z-direction are also the same direction.

[0071] The pairing device 200 includes a receiving cavity 201, and a second device 202 and a second magnet 203 disposed in the receiving cavity 201. The second magnet 203 and the first magnet 50 have the same shape, and the relative positional relationship between the first device 40 and the first magnet 50 can be the same as the relative positional relationship between the second magnet 203 and the second device 202, so that when the first magnet 50 and the second magnet 203 are attracted together, the first device 40 can be aligned with the second device 202.

[0072] In some embodiments, the back cover 10 of the electronic device 100 has a frame structure, and the display screen 60 is disposed on the back cover 10 along the Z direction, forming a receiving cavity 70 together with the back cover 10. The receiving cavity 70 is used to accommodate electronic components in the electronic device 100, such as the motherboard 20, battery 30, first device 40, first magnet 50, and display module on the display screen 60.

[0073] In other embodiments, the back cover 10 may also be a plate-like structure. The electronic device 100 also includes a middle frame (not shown in the figure), the back cover 10 and the display screen 60 covering the two opposite ends of the middle frame along the Z direction to form a receiving cavity 70.

[0074] Multiple electronic components can be integrated on the motherboard 20 to enable communication, battery management and other functions of the electronic device 100.

[0075] Battery 30 can provide power to various electronic components of electronic device 100.

[0076] The first device 40 is a device used by the electronic device 100 to pair with the second device 202 (e.g., a coil or data interface) on the pairing device 200. The first device 40 can be a wireless charging coil of the electronic device 100, or an electrical connector, etc. After the electronic device 100 pairs with the second device 202 through the first device 40, it can perform corresponding functions, such as charging, transmitting data, or fixing.

[0077] In some cases, the pairing of the first device 40 of the electronic device 100 with the second device 202 of the paired device 200 is, for example, the coupling of the first device 40 and the second device 202. Here, coupling refers to a close relationship between two or more systems, components, circuits, or things, where they are interconnected, interdependent, and interact with each other, and are able to transfer energy, information, or influence. In the embodiments of this application, the coupling of the first device 40 and the second device 202 may include: along the Z-direction, the overlapping area of ​​the first device 40 and the second device 202 reaches a preset range, for example, the overlapping area reaches more than 60%, so that energy can be transferred between the first device 40 and the second device 202 (e.g., charging). Alternatively, the first device 40 and the second device 202 may abut each other to achieve an electrical connection, etc.

[0078] For example, when the first device 40 and the second device 202 are wireless charging coils, in order to ensure the charging effect between the electronic device 100 and the paired device 200, the first device 40 and the second device 202 need to have a high overlap area in the Z direction to achieve phase coupling.

[0079] When the first device 40 and the second device 202 are mutually cooperating interfaces (e.g., spring pins), the first device 40 needs to abut against the second device 202 to achieve electrical connection, so that the electronic device 100 and the paired device 200 can charge or transmit data, thereby realizing the coupling of the first device 40 and the second device 202.

[0080] The first magnet 50 is used to engage with the second magnet 203 on the pairing device 200 so that the first device 40 can be paired with the second device 202 on the pairing device 200.

[0081] Continue to refer to Figure 1A and Figure 1C Along the Y direction, the motherboard 20 and the battery 30 are sequentially arranged in the receiving cavity 70, thereby avoiding the motherboard 20 and the battery 30 from being stacked along the Z direction, so as to maintain the thinness of the electronic device 100. The first device 40 and the first magnet 50 are also arranged in the receiving cavity 70. Along the Z direction, the first magnet 50 is fixed to the inner wall of the rear cover 10 and is stacked with the battery 30.

[0082] In order for the first device 40 and the second device 202 to meet the coupling conditions when the first magnet 50 and the second magnet 203 are attracted together, the first device 40 and the second device 202 need to have good center alignment (e.g., the centers of the first device 40 and the second device 202 are opposite each other along the Z direction) and alignment angle, etc. Therefore, the first magnet 50 and the second magnet 203 also have the function of aligning the first device 40 and the second device 202.

[0083] For example, refer to Figure 1B Taking the first device 40 as a wireless charging coil 41 as an example, the electronic device 100 can couple with the wireless charging coil 2021 (the second device 202 on the pairing device 200) on the pairing device 200 through the wireless charging coil 41, thereby charging the pairing device 200, or the pairing device 200 can wirelessly charge the electronic device 100. For effective charging, the wireless charging coil 41 of the electronic device 100 and the wireless charging coil 2021 on the pairing device 200 need to have a high overlap area. In other words, the position of the pairing device 200 needs to be restricted so that the wireless charging coil 2021 on the pairing device 200 and the wireless charging coil 41 on the electronic device 100 have a high center alignment accuracy.

[0084] Reference Figure 1A and 1C The first magnet 50 of the electronic device 100 includes an annular magnetic attractor 51. Similarly, referring to... Figure 1B and Figure 1C The second magnet 203 may also include an annular magnetic chuck 2031. Thus, when the annular magnetic chuck 51 and the annular magnetic chuck 2031 are attracted, the centers of the annular magnetic chuck 51 and the annular magnetic chuck 2031 are opposite each other along the Z-direction. This allows for alignment of the electronic device 100 and the paired device 200 at a target point along the Z-direction, which is either the center position of the annular magnetic chuck 51 or the center position of the annular magnetic chuck 2031. However, if only the annular magnetic chucks are aligned, the electronic device 100 and the paired device 200 can form different angles along the XY plane. In other words, the angle between the electronic device 100 and the paired device 200 is not fixed. Even when the annular magnetic chuck 51 and the annular magnetic chuck 2031 are attracted, the electronic device 100 and the paired device 200 do not have a unique positional relationship. Therefore, the first device 40 on the electronic device 100 and the second device 202 on the paired device 200 may not be able to couple. Therefore, the first magnet 50 also includes a strip magnetic chuck 52, and the second magnet 203 also includes a strip magnetic chuck 2032. After the strip magnetic chuck 52 and the strip magnetic chuck 2032 are engaged, they can fix the angle between the electronic device 100 and the paired device 200. When the electronic device 100 and the paired device 200 are aligned at the target point and at the angle, they can have a unique positional relationship along the Z-direction. At this time, the areas of the first device 40 on the electronic device 100 and the second device 202 on the paired device 200 can overlap along the Z-direction, thereby achieving coupling between the first device 40 and the second device 202.

[0085] In other words, in order to achieve a unique positional correspondence between the electronic device 100 and the pairing device 200 after the first magnet 50 and the second magnet 203 are attracted, the first magnet 50 needs to include an annular magnetic attractant 51 and a strip magnetic attractant 52. Furthermore, the annular magnetic attractant 51 and the strip magnetic attractant 52 are arranged sequentially along the Y direction, which results in the first magnet 50 occupying a large space in the XY plane, which may affect the layout of other devices in the electronic device 100.

[0086] Reference Figure 1C The battery 30 and the first magnet 50 are stacked along the Z-direction. To ensure the electronic device 100 is thin and light, its Z-direction dimension cannot be too large. Furthermore, to guarantee the battery 30's battery life, its thickness is generally not reduced. Therefore, the thickness of the first magnet 50 needs to be minimized to avoid a large overall thickness of the electronic device 100. For example, in some cases, the thickness of the first magnet 50 is between 0.3 mm and 0.4 mm.

[0087] Because the size of the first magnet 50 in the Z direction is limited, the magnetization direction of the first magnet 50 is generally parallel to the XY plane, which results in the first magnet 50 having a weaker adsorption capacity in the Z direction.

[0088] For example, refer to Figure 1D The magnetization direction of the annular magnetic chuck 51 in the first magnet 50 is the X direction. Therefore, the magnetic field strength is stronger at both ends of the annular magnetic chuck 51 along the X direction and weaker along the Z direction. Furthermore, when the annular magnetic chuck 51 is attracted to the annular magnetic chuck 2031 on the second magnet 203, the back cover 10 of the electronic device 100 is required as a gap, which further reduces the attraction ability of the annular magnetic chuck 51.

[0089] In other embodiments, the first device 40 can be miniaturized and distributed to the edge of the electronic device 100, and by arranging the first magnet 50 in a small area around the first device 40, high-precision alignment of the first device 40 with the second device 202 in the pairing device 200 can be achieved.

[0090] For example, Figure 2A and Figure 2B A schematic diagram of another electronic device is shown. Figure 2A A schematic diagram of the back structure of an electronic device is shown. Figure 2B A schematic diagram of a structure in which a magnetic attraction element is arranged around the first device 40 is shown.

[0091] Reference Figure 2A or Figure 2BThe following describes the electronic device 100 using the first device 40 as an example, which is a pogo pin. The first device 40 of the electronic device 100 can be distributed at the edge positions of the back cover 10 (e.g., positions M1 and M2). A magnetic attraction assembly 54 is arranged around the first device 40, wherein the magnetization directions of adjacent magnets in the magnetic attraction assembly 54 are opposite; that is, the N poles and S poles of the magnets in the magnetic attraction assembly 54 are arranged alternately. It can be understood that when the N poles and S poles of multiple magnets are arranged alternately, the opposite poles of adjacent magnets are opposite (NS or SN), and the magnetic field lines form a closed loop at the contact surface, reducing stray fields leaking into the surrounding environment. This closed magnetic field design makes the magnetic attraction force more concentrated, avoiding alignment deviations caused by magnetic field diffusion. This improves the alignment accuracy between the first device 40 and the second device 202.

[0092] However, the magnetic component 54 only supports small-range magnetic positioning. When actually docking the pairing device 200 with the electronic device 100, multiple auxiliary magnetic magnets 53 need to be set on the entire back cover 10 of the electronic device 100 for auxiliary magnetic positioning.

[0093] In other words, the magnetic attraction component 54 of the electronic device 100 is located on the edge of the back cover 10, and an auxiliary magnet 53 is also required for attraction and positioning. This makes it inconvenient for the electronic device 100 to magnetically dock with other devices (such as bases) except for docking with the paired device 200. In other words, the current layout of the magnetic attraction component 54 is only suitable for docking between the first device 40 and the paired device; therefore, the applicability of the magnetic attraction component 54 is low. Furthermore, with... Figure 1A Of Figure 1C Similar to the embodiments in the previous one, the magnetic component 54 also requires the back cover 10 to be attracted to the magnet on the pairing device, and the attraction force of the magnetic component 54 is still low.

[0094] In summary, magnets in electronic devices require space within the device's thickness, increasing the device's overall thickness. Furthermore, when magnets on an electronic device attract magnets on a paired device, the device's casing is needed, resulting in weaker magnetic attraction.

[0095] To address the aforementioned issues, this application provides an electronic device comprising a housing, a first magnet, and a first device. The housing includes a rear cover, and the first magnet is embedded in the rear cover. When the first magnet and a second magnet on a mating device are attracted to each other, the first device of the electronic device and the second device on the mating device are coupled together.

[0096] With the above solution, the first magnet is embedded in the back cover, and the dimensions occupied by the first magnet and the back cover in the thickness direction of the electronic device overlap. Therefore, the first magnet does not need to occupy additional thickness space of the electronic device, which can reduce the thickness of the electronic device and ensure its slimness. Furthermore, when the first magnet is attracted to the second magnet on the paired device, it does not need to be separated from the outer shell of the electronic device, thereby increasing the attraction force of the magnetic component.

[0097] For example, Figure 3A According to some embodiments of this application, a schematic diagram of the structure of an electronic device is shown.

[0098] Reference Figure 3A The electronic device 100 includes a back cover 10, a battery 30, a first device 40, and a display screen 60. The detailed structure and mounting positions of the back cover 10, battery 30, first device 40, and display screen 60 can be found in [reference needed]. Figures 1A to 1D The description in the text will not be repeated here.

[0099] It is understood that the electronic devices in the embodiments of this application are... Figures 1A to 1D Unlike other electronic devices, the back cover 10 includes a main body layer 111 and a decorative layer 112 that are stacked on top of each other. Along the Z direction, the decorative layer 112 is located on the side of the main body layer 111 that faces away from the receiving cavity 70, and the first magnet 50 is embedded in the main body layer 111.

[0100] In some embodiments, the first magnet 50 and the main body layer 111 of the rear cover 10 are integrally formed. For example, Figure 3B According to some embodiments of this application, a flowchart of an implementation of processing a first magnet 50 and a back cover 10 is shown.

[0101] Reference Figure 3B The process includes:

[0102] S301, Pre-process the first magnet 50.

[0103] In some embodiments of this application, the shape of the first magnet 50 can be pre-processed to create shape features that match the back cover 10 of the electronic device 100.

[0104] S302, the pre-processed first magnet 50 is integrally formed with the main body layer 111 on the back cover 10.

[0105] In some embodiments of this application, after the pre-processing of the first magnet 50 is completed, the pre-processed first magnet 50 and the main body layer 111 on the back cover 10 can be integrally processed and formed. The processing and forming methods include, but are not limited to, die casting, injection molding, inlaying, bonding, welding, etc.

[0106] S303, polish the appearance of the main body layer 111 of the first magnet 50 and the back cover 10.

[0107] In some embodiments of this application, after the first magnet 50 and the main body layer 111 of the back cover 10 are integrally formed, uneven parts such as steps and protrusions may appear. The appearance of the first magnet 50 and the main body layer 111 of the back cover 10 can be eliminated by grinding or other means, thereby improving the aesthetics of the back cover 10.

[0108] S304, magnetize the first magnet 50.

[0109] In some embodiments of this application, after the first magnet 50 is polished, the polished first magnet 50 can be magnetized.

[0110] In some embodiments of this application, the first magnet 50 can penetrate the main body layer 111 of the back cover 10 along the Z direction. Therefore, the size of the first magnet 50 in the Z direction is relatively large, and the first magnet 50 can be magnetized along the Z direction. That is, the magnetization direction of the first magnet 50 is parallel to the Z direction, thereby increasing the magnetic field strength of the first magnet 50 along the Z direction, and thus increasing the magnetic attraction strength of the first magnet 50 on the outer surface of the back cover 10.

[0111] S305, the appearance of the back cover 10 is processed to form a decorative layer 112.

[0112] In some embodiments of this application, the back cover 10 of the electronic device 100 can be subjected to an appearance treatment to form a decorative layer 112 on the side of the main body layer 111 of the back cover 10 opposite to the receiving cavity 70. Appearance treatments include, but are not limited to, nanoimprint lithography (NIL), spraying, tracing, electrophoresis, and non-conductive vacuum metallization (NCVM) processes. This can improve the aesthetic appearance of the electronic device 100.

[0113] By employing the above-described method, the gap between the first magnet 50 and the magnet on the pairing device can be reduced, and the magnetic attraction distance can be reduced by 0.3 mm to 0.8 mm. For example, in the embodiments of this application, the magnetic attraction distance can be reduced from 1 mm to 0.5 mm, thereby increasing the magnetic attraction force and improving the adsorption stability of the electronic device 100 and the pairing device. Furthermore, since the first magnet 50 and the main body layer 111 of the back cover 10 are integrally formed, the layout of the first magnet 50 does not affect the internal component layout of the receiving cavity 70 of the electronic device 100. Moreover, even if the first magnet 50 is stacked with the battery 30 in the Z direction, the overall size of the electronic device 100 can still be kept slim and lightweight.

[0114] In other embodiments, the first magnet 50 can pass through the main body layer 111 along the thickness direction of the back cover 10, thereby forming an appearance decoration together with the decorative layer 112 on the back cover 10 of the electronic device 100, such as a logo / color block. Alternatively, the decorative layer 112 can be processed to cover the first magnet 50, and the color of the decorative layer 112 can be the same as the appearance color of the back cover 10, thereby increasing the aesthetics of the electronic device 100. Furthermore, relative to... Figure 1A and Figure 1C The position and layout of the first magnet 50 can be adjusted. The thickness of the first magnet 50 can be increased by about 0.2 mm to 0.4 mm. For example, in the embodiment of this application, the thickness of the first magnet 50 is increased from 0.35 mm to 0.6 mm, and the magnetic attraction force is increased by about 60%-80%.

[0115] In some embodiments of this application, the magnets on the electronic device 100 can be arranged to reduce the space occupied by the magnets on the electronic device 100 and improve the magnets' adsorption capacity.

[0116] For example, Figure 4 According to some embodiments of this application, a schematic diagram of the layout structure of a magnet on an electronic device is shown.

[0117] In embodiments of this application, a magnet assembly 50 (as an example of a first magnet assembly) can be arranged on the electronic device 100. The magnet assembly may consist of multiple magnets or a single magnet having multiple magnetization directions, etc.

[0118] For example, refer to Figure 4 The magnet assembly 50 includes a first arc-shaped magnet assembly 55 and a second arc-shaped magnet assembly 56. The openings of the first arc-shaped magnet assembly 55 and the second arc-shaped magnet assembly 56 are arranged opposite to each other. The first end 554 of the first arc-shaped magnet assembly and the first end 561 of the second arc-shaped magnet assembly are opposite to each other. The second end 552 of the first arc-shaped magnet assembly 55 and the second end 562 of the second arc-shaped magnet assembly 56 are opposite to each other.

[0119] The first strip magnet assembly 57 extends along the Y direction (as an example of a first direction) and is located between the first end 551 of the first arc magnet assembly 55 and the first end 561 of the second arc magnet assembly 56.

[0120] The second strip magnet assembly 58 extends along the Y direction and is located between the second end 552 of the first arc magnet assembly 55 and the second end 562 of the second arc magnet assembly 56.

[0121] In some embodiments of this application, a plurality of magnet components with the same shape and size as the magnet component 50 may be arranged on the pairing device 200 corresponding to the electronic device 100 to form a magnet component 203. Thus, when the magnet component 50 and the magnet component 203 are attracted, at least one alignment center can be determined by the first arc-shaped magnet component 55 and the second arc-shaped magnet component 56 to achieve center alignment of the electronic device 100 and the pairing device 200. Furthermore, the alignment angle of the electronic device 100 and the pairing device 200 can be determined by the first strip magnet component 57 and the second strip magnet component 58. Thus, when the magnet component 50 and the magnet component 203 are attracted, the electronic device 100 and the pairing device 200 have a unique positional correspondence.

[0122] It is understood that, in the embodiments of this application, the first arc-shaped magnet assembly 55, the second arc-shaped magnet assembly 56, the first strip magnet assembly 57, and the second strip magnet assembly 58 can achieve precise positioning of the electronic device 100 and the paired device 200. Furthermore, the first arc-shaped magnet assembly 55, the second arc-shaped magnet assembly 56, the first strip magnet assembly 57, and the second strip magnet assembly 58 are arranged compactly, which can reduce the area occupied by the magnet assembly 50, thereby reducing the impact of the magnet assembly 50 on the arrangement of the internal components of the electronic device 100.

[0123] In some embodiments of this application, the projections of the first strip magnet assembly 57, the second strip magnet assembly 58, the first arc-shaped magnet assembly 55, and the second arc-shaped magnet assembly 56 along the Z-direction surround the projection of the first device 40 in the Z-direction. This reduces the area occupied by the magnet assembly 50 and the first device 40 as a whole, further minimizing their impact on the arrangement of internal components in the electronic device 100.

[0124] In some embodiments of this application, the magnet assembly 50 further includes multiple trace segments 59. For example, along the Y direction, the first strip magnet assembly 57 is spaced apart from the first end 551 of the first arc-shaped magnet assembly 55, and the first strip magnet assembly 57 is spaced apart from the first end 561 of the second arc-shaped magnet assembly 56. Along the Y direction, the second strip magnet assembly 58 is spaced apart from the second end 552 of the first arc-shaped magnet assembly 55, and the second strip magnet assembly 58 is spaced apart from the second end 562 of the second arc-shaped magnet assembly 56. That is, the intervals between the opposite ends of the first strip magnet assembly 57 along the Y direction and the first ends 551 of the first arc-shaped magnet assembly 55 and the first ends 561 of the second arc-shaped magnet assembly 56 can serve as trace segments 59.

[0125] In other words, multiple trace segments 59 are located at opposite ends of the first strip magnet assembly 57 along the Y direction and at opposite ends of the second strip magnet assembly 58 along the Y direction. The trace segments 59 are used to arrange the connection lines of the first device 40. It is understood that since the first device 40 is surrounded by the magnet assembly 50, the electrical connection lines of the first device 40 need to pass through the magnet assembly 50 to connect with other devices (e.g., the battery 30). If the connection lines bypass the magnet assembly 50 along the Z direction, the connection lines will occupy some space along the Z direction, increasing the thickness of the electronic device 100. Therefore, to avoid increasing the thickness of the electronic device 100, trace segments 59 can be opened on the magnet assembly 50 to arrange the corresponding connection lines of the first device 40. In other embodiments, the electrical components in the electronic device 100 can also be located within the enclosure of the magnet assembly 50, so that the trace segments can also arrange the connection lines of other devices. For example, wired / wireless / NFC interfaces or logos can be arranged.

[0126] In some embodiments of this application, the first arc-shaped magnet assembly 55 includes a plurality of planar multipole magnets M1 arranged along its circumference, and the second arc-shaped magnet assembly 56 includes a plurality of planar multipole magnets R1 arranged along its circumference.

[0127] For example, Figures 5A to 5D A schematic diagram of a magnet assembly 50 is shown, wherein, Figure 5A According to some embodiments of this application, a structural schematic diagram of a magnet assembly 50 is shown. Figure 5B According to some embodiments of this application, it is shown that Figure 5A Schematic diagram of cross-sectional structure ( Figure 5A (Schematic diagram of the BB section). Figure 5C A schematic diagram of the structure of a magnet assembly 50 is shown in two embodiments of this application. Figure 5D According to some embodiments of this application, it is shown that Figure 5A Schematic diagram of cross-sectional structure ( Figure 5A (Schematic diagram of the CC section).

[0128] in, Figure 5A The direction along the Z-direction from the back of the electronic device 100 (one side of the back cover 10 of the electronic device 100) to the front of the electronic device 100 (one side of the display screen 60 of the electronic device 100) (refer to) Figure 5A (in the Z1 direction). That is to say, Figure 5A The surface plane of the magnet assembly 50 shown is the side that attracts the magnet assembly on the pairing device 200.

[0129] In some embodiments of this application, the first arc-shaped magnet assembly 55 of the magnet assembly 50 includes a plurality of planar multipole magnets M1, and the second arc-shaped magnet assembly 56 includes a plurality of planar multipole magnets R1.

[0130] The planar multipole magnet M1 in the first arc-shaped magnet assembly 55 includes a first magnetic attractor M11 and a second magnetic attractor M12 arranged adjacent to each other in the radial direction (e.g., the r1 direction) of the first arc-shaped magnet assembly 55. The magnetization directions of the first magnetic attractor M11 and the second magnetic attractor M12 are parallel to the Z direction.

[0131] Reference Figure 5A The planar multipole magnet M1 can be an arc-shaped structure. Multiple planar multipole magnets M1 are arranged sequentially along the circumference (h1 direction) of the first arc-shaped magnet assembly 55, and the radial direction of the planar multipole magnet M1 is the same as r1.

[0132] Reference Figure 5A and Figure 5B The cross-section line of BB can be in the r1 direction. The planar multipole magnet M1 includes a first magnetic attractor M11 and a second magnetic attractor M12. The magnetization direction of the second magnetic attractor M12 is the Z1 direction, and the magnetization direction of the first magnetic attractor M11 is the Z2 direction. The Z2 direction is the opposite direction to the Z1 direction. That is to say, the magnetization directions of the first magnetic attractor M11 and the second magnetic attractor M12 are opposite.

[0133] In this way, the N and S poles of the first magnetic attractor M11 and the N and S poles of the second magnetic attractor M12 can be arranged alternately, so that opposite poles are opposite (NS or SN), so that the magnetic field lines of the first magnetic attractor M11 and the second magnetic attractor M12 form a closed loop at the contact surface, reducing stray fields of magnetic field leakage into the surrounding environment. This closed magnetic field design makes the magnetic attraction force more concentrated at opposite ends of the planar multipole magnet M1 along the Z direction, and can avoid alignment deviation caused by magnetic field diffusion. That is to say, the planar multipole magnet M1 can achieve a better alignment effect. In the embodiments of this application, the array formed by the first magnetic attractor M11 and the second magnetic attractor M12 can also be called an NS array.

[0134] In some embodiments of this application, both the first magnetic attractor M11 and the second magnetic attractor M12 are arc-shaped structures, and they are connected along the r1 direction. Along the r1 direction, the inner arc surface 012 of the first magnetic attractor M11 and the outer arc surface 021 of the second magnetic attractor M12 are completely in contact, thus forming a planar multipole magnet M1 that is still arc-shaped. That is, the outer arc surface 011 of the first magnetic attractor M11 is the outer arc surface 01 of the planar multipole magnet M1, and the inner arc surface 022 of the second magnetic attractor M12 is the inner arc surface 02 of the planar multipole magnet M1.

[0135] Reference Figure 5A In the embodiments of this application, the magnetization direction of the first magnetic chuck M11 of each planar multipole magnet M1 in the first arc-shaped magnet assembly 55 is the Z2 direction, and the magnetization direction of the second magnetic chuck M12 is the Z1 direction. That is, the magnetization directions of two adjacent planar multipole magnets M1 along the circumference of the first arc-shaped magnet assembly 55 are the same. This allows the outer arc surface of the first arc-shaped magnet assembly 55 formed by multiple planar multipole magnets M1 to be magnetized in the Z2 direction, and the inner arc surface to be magnetized in the Z1 direction.

[0136] It is understood that in some other embodiments, the magnetization direction of the first magnetic attractor M11 of the planar multipole magnet M1 can also be the Z1 direction, and the magnetization direction of the second magnetic attractor M12 can be the Z2 direction, so that the magnetization direction of the outer arc surface of the first arc-shaped magnet assembly 55 formed by the multiple planar multipole magnets M1 is the Z1 direction, and the magnetization direction of the inner arc surface is the Z2 direction.

[0137] Similarly, the layout of the planar multipole magnet R1 in the second arc-shaped magnet assembly 56 is similar to the layout of the planar multipole magnet M1 in the first arc-shaped magnet assembly 55. The layout of the planar multipole magnet R1 in the second arc-shaped magnet assembly 56 can be referred to the description of the first arc-shaped magnet assembly 55. The embodiments of this application will not be described in detail.

[0138] and Figure 5A The magnet assembly 50 in the middle is different. Figure 5C In the first arc-shaped magnet assembly 55, among the multiple planar multipole magnets M1, the magnetization directions of two adjacent planar multipole magnets M1 along the circumference of the first arc-shaped magnet assembly 55 are opposite.

[0139] For example, refer to Figure 5C The magnetization directions of the first magnetic attractor M11 and the second magnetic attractor M12 of the two adjacent planar multipole magnets M1 along the circumference of the first arc-shaped magnet assembly 55 are opposite, so that an NS array can also be formed between the two planar multipole magnets M1, which can further improve the alignment accuracy of the first arc-shaped magnet assembly 55.

[0140] Similarly, in the second arc-shaped magnet assembly 56, the first magnetic attractor M11 between two adjacent planar multipole magnets M1 can also form an NS array. The layout of the planar multipole magnets R1 in the second arc-shaped magnet assembly 56 can be referred to the description of the first arc-shaped magnet assembly 55. The embodiments of this application will not be described in detail.

[0141] Reference Figure 5A and Figure 5DThe first bar magnet assembly 57 includes a plurality of Hellbeck magnets M2 arranged along the Y direction (as an example of a bar Hellbeck magnet), and the Hellbeck magnet M2 includes a third magnetic chuck M21, a fourth magnetic chuck M22, and a second auxiliary magnet M23.

[0142] The third magnetic chuck M21 and the fourth magnetic chuck M22 are arranged at intervals along the length direction (n1 direction) of the Helbeck magnet M2, and the second auxiliary magnet M23 is located between the third magnetic chuck M21 and the fourth magnetic chuck M22. The third magnetic chuck M21, the fourth magnetic chuck M22 and the second auxiliary magnet M23 form the Helbeck magnet.

[0143] In this design, the magnetization directions of the third magnetic chuck M21 and the fourth magnetic chuck M22 are opposite. For example, the magnetization direction of the third magnetic chuck M21 is Z1, and the magnetization direction of the fourth magnetic chuck M22 is Z2. The magnetization direction of the second auxiliary magnet M23 intersects the magnetization direction of the third magnetic chuck M21 (or the magnetization direction of the fourth magnetic chuck M22). For example, in some embodiments of this application, the magnetization direction of the second auxiliary magnet M23 is n1, which is parallel to the Y direction, for example. That is, the magnetization direction of the second auxiliary magnet M23 is perpendicular to the magnetization direction of the third magnetic chuck M21 (or the magnetization direction of the fourth magnetic chuck M22).

[0144] Reference Figure 5C The Hellbeck magnet M2 includes a first surface P1 (as an embodiment of the magnetic field enhancement side) and a second surface P2 (as an embodiment of the magnetic field weakening side) in opposite directions along the Z direction. In the embodiments of this application, the Hellbeck magnet M2 is attracted to the magnet assembly 203 of the mating device 200 through the first surface P1.

[0145] On the first surface P1 of the Helbeck magnet M2, the third magnetic element M21 is the S pole and the fourth magnetic element M22 is the N pole. Therefore, the direction of the magnetic field formed by the third magnetic element M21 and the fourth magnetic element M22 is the direction from the fourth magnetic element M22 to the third magnetic element M21. For example... Figure 5CIn the Y1 direction, the direction from the top to the bottom of the electronic device 100 under normal use is defined. In the embodiments of this application, the n1 direction is the same as the Y1 direction. Thus, on the first surface P1, the magnetic field generated by the second auxiliary magnet M23 is in the same direction as the magnetic field formed by the third magnetic attractor M21 and the fourth magnetic attractor M22, thereby enhancing the magnetic field strength of the first surface P1 and increasing the attraction force of the Hellbeck magnet M2 on the first surface P1. That is, the magnetization direction of the second auxiliary magnet M23 is always from the N pole formed by the fourth magnetic attractor M22 (or the third magnetic attractor M21) on the first surface P1 to the S pole formed by the third magnetic attractor M21 (or the fourth magnetic attractor M22) on the first surface P1. In this way, the magnetic attraction ability per unit area of ​​the Hellbeck magnet M2 on the first surface P1 can be increased, thereby improving the magnetic attraction effect of the Hellbeck magnet M2.

[0146] Continue to refer to Figure 5A In some embodiments of this application, two Hellbeck magnets M2 (which can be an example of a first strip Hellbeck magnet and a second strip Hellbeck magnet) are sequentially connected along the Y direction to form a first strip magnet assembly 57. In other words, the length direction (n1 direction) of the plurality of Hellbeck magnets M2 is parallel to the Y direction. The two magnetic attractors connecting the two Hellbeck magnets M2 (e.g., a third magnetic attractor M21 and a fourth magnetic attractor M22, respectively) can form an NS array, thereby improving the alignment accuracy of the first strip magnet assembly 57.

[0147] Similarly, the layout of the Hellbeck magnet R2 in the second strip magnet assembly 58 can refer to the layout of the Hellbeck magnet R2 in the first strip magnet assembly 57. The embodiments of this application will not be described in detail.

[0148] In some embodiments of this application, the first arc-shaped magnet assembly 55 and the second arc-shaped magnet assembly 56 in the magnet assembly 50 may also form a Heilbeck magnet to increase the attraction force of the surfaces where the magnet assembly 50 and the magnet assembly 203 are attracted, thereby improving the attraction effect.

[0149] For example, Figures 6A to 6C A schematic diagram is shown of a first arc-shaped magnet assembly 55 including a Heilbeck magnet, wherein, Figure 6A According to some embodiments of this application, a structural schematic diagram of a magnet assembly 50 is shown in Figure 3. Figure 6B According to some embodiments of this application, a cross-sectional structural schematic diagram of a magnet assembly 50 is shown. Figure 6A (Cross-sectional view of DD in the middle) Figure 6C According to some embodiments of this application, a schematic diagram of the structure of a magnet assembly 50 is shown. Figure 4 .

[0150] Reference Figure 6A and Figure 6B Each planar multipole magnet M1 in the first arc-shaped magnet assembly 55 also includes a first auxiliary magnet M13, which is located between the first magnetic attractor M11 and the second magnetic attractor M12 along the r1 direction. The first magnetic attractor M11, the second magnetic attractor M12 and the first auxiliary magnet M13 form a Heilbeck magnet.

[0151] The magnetization direction of the first auxiliary magnet M13 intersects the magnetization direction of the first magnetic attractor M11 (or the magnetization direction of the second magnetic attractor M12). For example, in some embodiments of this application, the magnetization direction of the first auxiliary magnet M13 is the r2 direction (the opposite direction of r1). (Refer to...) Figure 6B The planar multipole magnet M1 includes a third surface P3 and a fourth surface P4 facing away from each other along the Z direction. In the embodiments of this application, the planar multipole magnet M1 and the magnet assembly 203 on the pairing device 200 are attracted together through the third surface P3. Therefore, the magnetic field direction of the first auxiliary magnet M13 on the third surface P3 is from the N pole of the second magnetic member M12 to the S pole of the first magnetic member M11. This allows the magnetic field lines to coincide with the magnetic field lines from the N pole of the second magnetic member M12 to the S pole of the first magnetic member M11, thereby achieving the magnetic attraction strength of the planar multipole magnet M1 on the third surface P3. In other words, the magnetization direction of the first auxiliary magnet M13 is always from the N pole formed by the second magnetic member M12 (or the first magnetic member M11) on the third surface P3 to the S pole formed by the first magnetic member M11 (or the second magnetic member M12) on the third surface P3, thereby increasing the magnetic attraction strength of the planar multipole magnet M1 on the third surface P3. In some embodiments of this application, the first surface P1 and the third surface P3 are both the same surface of the magnet assembly 50.

[0152] Reference Figure 6A In the embodiments of this application, the first bar magnet assembly 57 and the second bar magnet assembly 58 can both be formed by planar multipole magnets arranged sequentially along the Y direction, thereby forming an NS array to improve the alignment accuracy of the first bar magnet assembly 57 and the second bar magnet assembly 58.

[0153] Reference Figure 6AIn the embodiments of this application, the magnetization direction of the first magnetic chuck M11 of each planar multipole magnet M1 in the first arc-shaped magnet assembly 55 is the Z2 direction, the magnetization direction of the second magnetic chuck M12 is the Z1 direction, and the magnetization direction of the first auxiliary magnet M13 is the opposite direction of the radial direction of the planar multipole magnet M1 towards the center. That is, the first magnetic chuck M11 and the second magnetic chuck M12 of two adjacent planar multipole magnets M1 along the circumference of the first arc-shaped magnet assembly 55 have the same magnetization direction. This allows the outer arc surface of the first arc-shaped magnet assembly 55 formed by multiple planar multipole magnets M1 to be magnetized in the Z2 direction, and the inner arc surface to be magnetized in the Z1 direction.

[0154] It is understood that in some other embodiments, the magnetization direction of the first magnetic attractor M11 of the planar multipole magnet M1 can also be the Z1 direction, the magnetization direction of the second magnetic attractor M12 can be the Z2 direction, and the magnetization direction of the first auxiliary magnet M13 is the direction of the planar multipole magnet M1 pointing radially towards the center of the circle, so that the magnetization direction of the outer arc surface of the first arc-shaped magnet assembly 55 formed by the multiple planar multipole magnets M1 is the Z1 direction, and the magnetization direction of the inner arc surface is the Z2 direction.

[0155] Similarly, the layout of the planar multipole magnet R1 in the second arc-shaped magnet assembly 56 is similar to the layout of the planar multipole magnet M1 in the first arc-shaped magnet assembly 55. The layout of the planar multipole magnet R1 in the second arc-shaped magnet assembly 56 can be referred to the description of the first arc-shaped magnet assembly 55. The embodiments of this application will not be described in detail.

[0156] and Figure 6A The magnet assembly 50 in the middle is different. Figure 6C In the first arc-shaped magnet assembly 55, among the multiple planar multipole magnets M1, the magnetization directions of the first magnetic attractor M11 and the second magnetic attractor M12 of two adjacent planar multipole magnets M1 along the circumference of the first arc-shaped magnet assembly 55 are opposite.

[0157] For example, refer to Figure 6C The magnetization directions of the two first magnetic attractors M11 in the two adjacent planar multipole magnets M1 along the circumference of the first arc-shaped magnet assembly 55 are opposite, and the magnetization directions of the two second magnetic attractors M12 are also opposite. Thus, an NS array can also be formed between the two planar multipole magnets M1, which can further improve the alignment accuracy of the first arc-shaped magnet assembly 55.

[0158] Similarly, in the second arc-shaped magnet assembly 56, the first magnetic attractor M11 between two adjacent planar multipole magnets M1 can also form an NS array. The layout of the planar multipole magnets R1 in the second arc-shaped magnet assembly 56 can be referred to the description of the first arc-shaped magnet assembly 55. The embodiments of this application will not be described in detail.

[0159] In some embodiments of this application, the magnetic attracting elements and auxiliary magnets in the Heilbeck magnet M2 of the first bar magnet assembly 57 can be increased sequentially along the n1 direction, and the magnetic attracting elements are spaced apart, with an auxiliary magnet provided between every two magnetic attracting elements.

[0160] For example, continuing with 6C, the Heilbeck magnet M2 of the first bar magnet assembly 57 also includes a fifth magnetic attractor M24 and a third auxiliary magnet M25. Along the n1 direction, the third magnetic attractor M21, the fourth magnetic attractor M22, and the fifth magnetic attractor M24 are spaced apart; the second auxiliary magnet M23 is disposed between the third magnetic attractor M21 and the fourth magnetic attractor M22; and the third auxiliary magnet M25 is disposed between the fourth magnetic attractor M22 and the fifth magnetic attractor M24. That is to say, Figure 6C The Heilbeck magnet M2 in the middle is relative to Figure 5A The Hellbeck magnet M2 in this design adds a fifth magnetic chuck M24 and a third auxiliary magnet M25. It can be understood that, since the magnetic poles of the fourth magnetic chuck M22 at both ends of the third auxiliary magnet M25 on the first surface P1 of the Hellbeck magnet M2 are S poles and the magnetic pole of the fifth magnetic chuck M24 is N pole, the magnetization direction of the third auxiliary magnet M25 is from the N pole of the fifth magnetic chuck M24 to the S pole of the fourth magnetic chuck M22, i.e., the n2 direction, which is opposite to the n1 direction. It can be understood that increasing the number of magnets in the Hellbeck magnet M2 can further increase the alignment accuracy and magnetic attraction strength of the Hellbeck magnet M2, thereby improving the magnetic attraction effect of the Hellbeck magnet M2.

[0161] Continue to refer to Figure 6C In some embodiments of this application, two Hellbeck magnets M2 are connected sequentially along the Y direction, and the length directions (n1 direction) of the two Hellbeck magnets M2 are perpendicular to each other. Alternatively, a Hellbeck magnet M2 with its length direction parallel to the Y direction and a Hellbeck magnet M2 with its length direction perpendicular to the Y direction are arranged adjacent to each other (the two Hellbeck magnets M2 can serve as an example of a first strip-shaped Hellbeck magnet and a second strip-shaped Hellbeck magnet) to form a first strip magnet assembly 57, thereby improving the alignment accuracy of the first strip magnet assembly 57.

[0162] Similarly, the layout of the Hellbeck magnet R2 in the second strip magnet assembly 58 can refer to the layout of the Hellbeck magnet R2 in the first strip magnet assembly 57. The embodiments of this application will not be described in detail.

[0163] It is understood that, in the embodiments of this application, the magnets in the first arc-shaped magnet assembly 55, the second arc-shaped magnet assembly 56, the first strip magnet assembly 57, and the second strip magnet assembly 58 may also have other structural layouts.

[0164] For example, Figures 7A to 7FA schematic diagram of an arc-shaped magnet assembly as an NS array is shown.

[0165] in, Figure 7A According to some embodiments of this application, a schematic diagram of a structure in which an NS array is arranged in a bar magnet assembly is shown.

[0166] Reference Figure 7A ,and Figure 5A The magnet assembly 50 in the middle is different. Figure 7A The first bar magnet assembly 57 also includes an additional NS array. It can be understood that... Figure 5A In one embodiment, two adjacent Hellbeck magnets M2 of the first strip magnet assembly 57 can form an NS array. And... Figure 7A In one embodiment, an additional NS array can be added between the two Hellbeck magnets M2 of the first strip magnet assembly 57, and the two magnetic attractors of the NS array and the two magnetic attractors of the Hellbeck magnet M2 can also form an NS array, which can further improve the alignment accuracy of the first strip magnet assembly 57.

[0167] Similarly, the second bar magnet assembly 58 and the first bar magnet assembly 57 have a similar layout, and the second bar magnet assembly will not be described in detail below.

[0168] Figure 7B According to some embodiments of this application, a schematic diagram of a magnet assembly 50 structure is shown in Figure 5.

[0169] in, Figure 7B The magnet assembly 50 can be Figure 5C The first arc-shaped magnet assembly 55 and the second arc-shaped magnet assembly 56, and Figure 7A The combination of the first bar magnet assembly 57 and the second bar magnet assembly 58. Regarding... Figure 7B The array layout of the magnet assembly 50 can be referred to Figure 5C and Figure 7A The description in the text will not be repeated below.

[0170] Figure 7C According to some embodiments of this application, a schematic diagram of a magnet assembly 50 structure is shown in Figure 6.

[0171] in, Figure 7C The magnet assembly 50 can be Figure 6A The first arc-shaped magnet assembly 55 and the second arc-shaped magnet assembly 56, and Figure 6C The combination of the first bar magnet assembly 57 and the second bar magnet assembly 58. Regarding... Figure 7C The array layout of the magnet assembly 50 can be referred to Figure 6A and Figure 6CThe description in the text will not be repeated below.

[0172] Figure 7D According to some embodiments of this application, a schematic diagram of a magnet assembly 50 structure is shown in Figure 7.

[0173] in, Figure 7D The first bar magnet assembly 57 and the second bar magnet assembly 58 in the magnet assembly 50 and Figure 6C Compared to the Hellbeck magnet M2 in the first bar magnet assembly 57, an auxiliary magnet and a magnetic attractor are added along the length of the Hellbeck magnet M2. A description of the additional auxiliary magnet and magnetic attractor on the Hellbeck magnet M2 can be found in [reference needed]. Figure 6C The embodiments described herein will not be elaborated upon further.

[0174] Figure 7D The first arc-shaped magnet assembly 55 and the second arc-shaped magnet assembly 56 in the magnet assembly 50 are similar to bending the first strip magnet assembly 57 into an arc shape. The arrangement of the first arc-shaped magnet assembly 55 and the second arc-shaped magnet assembly 56 can refer to the arrangement of the first strip magnet assembly 57, and will not be described in detail in the embodiments of this application.

[0175] Figure 7E According to some embodiments of this application, a schematic diagram of a magnet assembly 50 structure is shown. Figure 8 .

[0176] in, Figure 7E The first strip magnet assembly 57 and the second strip magnet assembly 58 in the magnet assembly 50 can be referred to Figure 5C The description in the text will not be repeated below.

[0177] Figure 7E The first arc-shaped magnet assembly 55 and the second arc-shaped magnet assembly 56 in the magnet assembly 50 are similar to bending the first strip magnet assembly 57 into an arc shape. The arrangement of the first arc-shaped magnet assembly 55 and the second arc-shaped magnet assembly 56 can refer to the arrangement of the first strip magnet assembly 57, and will not be described in detail in the embodiments of this application.

[0178] Figure 7F According to some embodiments of this application, a schematic diagram of a magnet assembly 50 structure is shown.

[0179] in, Figure 7F The first strip magnet assembly 57 and the second strip magnet assembly 58 in the magnet assembly 50 are both combinations of multiple NS arrays. The arrangement of the multiple NS arrays can be referred to Figure 6C The arrangement of the Heilbeck magnets M2 in the first strip magnet assembly 57 is not described in detail in the embodiments of this application.

[0180] Figure 7F The first arc-shaped magnet assembly 55 and the second arc-shaped magnet assembly 56 in the magnet assembly 50 are relative to Figure 5A In the first arc-shaped magnet assembly 55, each planar multipole magnet M1 has an added magnetic attracting element, but the array formed by the planar multipole magnets M1 is still an NS array. The arrangement array of the first arc-shaped magnet assembly 55 and the second arc-shaped magnet assembly 56 can be referred to Figure 5A The arrangement array of the first arc-shaped magnet assembly 55 in the embodiment of this application will not be described in detail.

[0181] Figure 7G According to some embodiments of this application, a schematic diagram of a magnet assembly 50 structure is shown.

[0182] in, Figure 7G The magnet assembly 50 can be Figure 5A The first arc-shaped magnet assembly 55 and the second arc-shaped magnet assembly 56, and Figure 6C The combination of the first bar magnet assembly 57 and the second bar magnet assembly 58. Regarding... Figure 7C The array layout of the magnet assembly 50 can be referred to Figure 5A and Figure 6C The description in the text will not be repeated below.

[0183] Figure 7H According to some embodiments of this application, a schematic diagram of a magnet assembly 50 structure is shown eleven.

[0184] in, Figure 7H The magnet assembly 50 can be Figure 7G The first arc-shaped magnet assembly 55 and the second arc-shaped magnet assembly 56, and Figure 6A The combination of the first bar magnet assembly 57 and the second bar magnet assembly 58. Regarding... Figure 7C The array layout of the magnet assembly 50 can be referred to Figure 7G and Figure 6A The description in the text will not be repeated below.

[0185] In other embodiments of this application, the first arc-shaped magnet assembly 50, the second arc-shaped magnet assembly 56, the first strip magnet assembly 57, and the second strip magnet assembly 58 can be arranged in a sealed pattern.

[0186] For example, Figure 8 A schematic diagram of a magnet assembly 50 structure is shown in Figure XII according to some embodiments of this application.

[0187] In the embodiments of this application, the spacing between the first arc-shaped magnet assembly, the second arc-shaped magnet assembly 56, the first strip magnet assembly 57, and the second strip magnet assembly 58 of the magnet assembly 50 is small, which makes the magnet assembly 50 more compact, reduces the space occupied by the magnet assembly 50, and thus reduces the impact on the layout of electronic devices in the electronic device 100.

[0188] In the embodiments of this application, the wiring segment 59 on the magnet assembly 50 can be disposed on the first strip magnet assembly 57 and the second strip magnet assembly 58. For example, the wiring segment 59 divides the first strip magnet assembly 57 into a plurality of strip magnetic attractors 571 and the second strip magnet assembly 58 into a plurality of strip magnetic attractors 581, thereby ensuring that the first device 40 surrounded by the magnet assembly 50 is arranged with wiring.

[0189] In some embodiments of this application, in order to increase the thickness of the first magnet 50 along the Z direction, the position layout of the motherboard 20 and the battery 30 of the electronic device 100 can be adjusted so that the first magnet 50 can be stacked with the motherboard 20 along the Z direction. Since the motherboard 20 occupies less space along the Z direction, the size of the first magnet 50 along the Z direction can be increased.

[0190] For example, Figure 9A According to some embodiments of this application, a schematic diagram of a centrally located motherboard 20 of an electronic device is shown.

[0191] like Figure 9A As shown, along the Z-direction, the projection of the magnet assembly 50 onto the XY plane at least partially overlaps with the projection of the motherboard 20 onto the XY plane; in other words, along the Z-direction, the motherboard 20 and the magnet assembly 50 are stacked. For example, in some embodiments of this application, the projection of the magnet assembly 50 onto the XY plane is within the projection range of the motherboard 20 onto the XY plane. Since the motherboard 20 occupies less space along the Z-direction, the thickness of the magnet assembly 50 along the Z-direction can be increased, thereby increasing the magnetic attraction force of the magnet assembly 50.

[0192] In some embodiments, in order to ensure that the magnet assembly 50 and the first device 40 are located in the middle of the electronic device 100 along the XY plane, the motherboard 20 can be disposed in the middle along the X direction and / or along the Y direction, and the motherboard 20 and the battery 30 do not overlap along the Z direction.

[0193] For example, Figure 9B According to some embodiments of this application, a schematic diagram of an electronic device including a battery 30 is shown. (Refer to...) Figure 9BThe electronic device 100 can be equipped with a battery 30. Along the Z direction, the motherboard 20 and the battery 30 do not overlap. In addition, the magnet assembly 50 is also not stacked with the battery 30, thereby reducing the thickness of the electronic device 100 and making the electronic device 100 thinner and lighter.

[0194] It is understood that, since the motherboard 20 is located in the middle of the electronic device 100 and does not overlap with the battery 30, and a single battery 30 may occupy a large area, in some embodiments of this application, the electronic device 100 may be configured with two or more batteries 30. For example, see reference... Figure 9A In this embodiment, the electronic device 100 is configured with two batteries 30, which are respectively disposed at opposite ends of the motherboard 20 along the X direction. Thus, the batteries 30 are not stacked with the motherboard 20 along the Z direction, eliminating the need to increase the thickness of the electronic device 100. Furthermore, the thickness of the magnet assembly 50 can be increased, thereby increasing its magnetization intensity. The magnet assembly 50 is also positioned in the center of the electronic device 100, eliminating the need to place the magnet assembly 50 and the first device 40 at the edge of the back cover 10 to avoid interference with the batteries 30 in the Z direction. In some embodiments of this application, the magnet assembly 50 is disposed in the central region of the back cover 10 along the Y direction, with the central region's dimension along the Y direction accounting for 1 / 3 to 2 / 3 of the length of the back cover 10. That is, the magnet assembly 50 can be concentrated in the center of the electronic device 100, allowing the electronic device 100 to be attracted to different paired devices via the magnet assembly 50, thereby improving the applicability of the magnet assembly 50.

Claims

1. An electronic device, characterized in that, The electronic device includes a rear cover, a first device, and a first magnet. The rear cover is used to form a receiving cavity for the electronic device, and the first device is located in the receiving cavity or on the rear cover. The back cover includes a main body layer and a decorative layer that are stacked on top of each other. The decorative layer is located on the side of the main body layer that faces away from the receiving cavity. The first magnet is embedded in the main body layer. The first magnet is used to engage with the second magnet in the pairing device, and when the first magnet and the second magnet are engaged, the first device is coupled with the second device in the pairing device.

2. The electronic device as claimed in claim 1, characterized in that, The first magnet and the main body layer of the back cover are an integral structure.

3. The electronic device as claimed in claim 1, characterized in that, The magnetization direction of the first magnet is parallel to the thickness direction of the back cover.

4. The electronic device as claimed in claim 1, characterized in that, The first magnet penetrates the main body layer along the thickness direction of the rear cover.

5. The electronic device as claimed in claim 1, characterized in that, The first device is a wireless charging coil or an electrical connector.

6. An electronic device, characterized in that, The electronic device includes a rear cover, a first device, and a first magnet assembly. The rear cover is used to enclose a receiving cavity of the electronic device, and the first device is located in the receiving cavity or on the rear cover. The first magnet assembly is used to engage with the second magnet assembly in the pairing device, and when the first magnet assembly and the second magnet assembly are engaged, the first device is coupled to the second device in the pairing device; The first magnet assembly includes: A first arc-shaped magnet assembly and a second arc-shaped magnet assembly, wherein the openings of the first arc-shaped magnet assembly and the second arc-shaped magnet assembly are arranged opposite each other along a first direction, the first end of the first arc-shaped magnet assembly and the first end of the second arc-shaped magnet assembly are opposite each other, the second end of the first arc-shaped magnet assembly and the second end of the second arc-shaped magnet assembly are opposite each other, and the first direction intersects with the thickness direction of the electronic device; The first strip magnet assembly extends along the first direction and is located between the first end of the first arc magnet assembly and the first end of the second arc magnet assembly; The second strip magnet assembly extends along the first direction and is located between the second end of the first arc magnet assembly and the second end of the second arc magnet assembly; The first arc-shaped magnet assembly includes a plurality of planar multipole magnets arranged circumferentially thereon, and the second arc-shaped magnet assembly includes a plurality of planar multipole magnets arranged circumferentially thereon. The magnetization direction of each planar multipole magnet is a second direction, which is perpendicular to the first direction.

7. The electronic device as claimed in claim 6, characterized in that, In the first arc-shaped magnet assembly, among the plurality of planar multipole magnets, two planar multipole magnets that are adjacent to each other along the circumference of the first arc-shaped magnet assembly have the same magnetization direction.

8. The electronic device as claimed in claim 6, characterized in that, In the first arc-shaped magnet assembly, among the plurality of planar multipole magnets, the magnetization directions of two adjacent planar multipole magnets along the circumference of the first arc-shaped magnet assembly are opposite.

9. The electronic device as claimed in claim 7 or 8, characterized in that, Each of the planar multipole magnets in the first arc-shaped magnet assembly includes a first magnetic absorbing element, a second magnetic absorbing element, and a first auxiliary magnet; The first magnetic attractor and the second magnetic attractor are arranged at a radial distance along the first arc-shaped magnet assembly, and the first auxiliary magnet is located between the first magnetic attractor and the second magnetic attractor. The first magnetic attractor, the second magnetic attractor, and the first auxiliary magnet form a Heilbeck magnet.

10. The electronic device as claimed in claim 6, characterized in that, The first bar magnet assembly includes at least one bar Hellbeck magnet, and the second bar magnet assembly includes at least one bar Hellbeck magnet, wherein the magnetic field enhancement side and the magnetic field depletion side of each bar Hellbeck magnet are arranged opposite to each other along the second direction; Furthermore, the magnetic field enhancement side of each of the Heilbeck magnets is used to attract the second magnet assembly.

11. The electronic device as claimed in claim 10, characterized in that, The at least one bar-shaped Hellbeck magnet in the first bar magnet assembly includes a first bar-shaped Hellbeck magnet and a second bar-shaped Hellbeck magnet; The first strip-shaped Helbeck magnet and the second strip-shaped Helbeck magnet are arranged adjacent to each other along the first direction, and the length direction of the first strip-shaped Helbeck magnet is parallel to the first direction, and the length direction of the second strip-shaped Helbeck magnet is parallel to the first direction.

12. The electronic device as claimed in claim 10, characterized in that, The at least one Heilbeck magnet in the first bar magnet assembly includes a first bar Heilbeck magnet and a second bar Heilbeck magnet; The first strip-shaped Helbeck magnet and the second strip-shaped Helbeck magnet are arranged adjacent to each other along the first direction, and the length direction of the first strip-shaped Helbeck magnet is parallel to the first direction, while the length direction of the second strip-shaped Helbeck magnet is perpendicular to the first direction.

13. The electronic device as claimed in claim 10, characterized in that, The first bar magnet assembly further includes a planar multipole magnet, and the planar multipole magnet and the bar Helbeck magnet are arranged adjacent to each other along the first direction.

14. The electronic device as claimed in claim 6, characterized in that, Along the first direction, the first ends of the first strip magnet assembly and the first arc magnet assembly are spaced apart, and the first ends of the first strip magnet assembly and the second arc magnet assembly are spaced apart. Along the first direction, the second strip magnet assembly and the second arc magnet assembly are spaced apart at their second ends.

15. The electronic device as claimed in claim 10, characterized in that, Along the first direction, the first strip magnet assembly is connected to the first end of the first arc magnet assembly, and the first strip magnet assembly is connected to the first end of the second arc magnet assembly; The first strip magnet assembly includes at least two first strip magnetic attractors, which are spaced apart along the first direction; Along the first direction, the second strip magnet assembly is connected to the second end of the first arc magnet assembly, and the second strip magnet assembly is connected to the second end of the second arc magnet assembly; The second strip magnet assembly includes at least two second strip magnetic attractors, which are spaced apart along the first direction.

16. The electronic device as claimed in claim 6, characterized in that, The electronic device also includes a motherboard disposed in the receiving cavity; Along the thickness direction of the electronic device, the first magnet assembly is located between the motherboard and the back cover, and the projection of the first magnet assembly along the thickness direction of the electronic device at least partially overlaps with the projection of the motherboard along the thickness direction.

17. The electronic device as claimed in claim 6, characterized in that, The electronic device further includes a battery disposed in the receiving cavity, wherein the projection of the first magnet assembly along the thickness direction of the electronic device does not overlap with the projection of the battery along the thickness direction of the electronic device.

18. The electronic device as claimed in claim 6, characterized in that, The first magnet assembly is located in the middle region along the length of the rear cover.

19. The electronic device as claimed in claim 6, characterized in that, The projections of the first strip magnet assembly, the second strip magnet assembly, the first arc magnet assembly, and the second arc magnet assembly along the thickness direction of the back cover surround the projection of the first device along the thickness direction of the back cover.

20. The electronic device as claimed in claim 6, characterized in that, The first magnet assembly is disposed on the rear cover.

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