Electronic device

Abstract

The invention discloses an electronic device. The electronic equipment comprises a frame body and an antenna assembly arranged on the frame body, the antenna assembly comprises an NFC coil and an electric modulation magnetic sheet, and the electric modulation magnetic sheet is arranged on one side of the NFC coil; and the first control assembly is electrically connected with the electrically adjustable magnetic sheet so as to adjust the magnetic field intensity of the electrically adjustable magnetic sheet.

Description

Technical Field

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

[0002] As user demands increase, electronic devices are equipped with more and more functional modules, which can make electronic devices more and more functional, thereby meeting more user demands.

[0003] In the related art, electronic devices are equipped with NFC (Near Field Communication) modules. NFC modules enable electronic devices to have near-field wireless communication functions. In this case, electronic devices can be used for payment, motion monitoring, door access, etc. Obviously, this can further broaden the application scenarios of electronic devices.

[0004] However, the NFC module in the related art has a fixed magnetic field strength and cannot flexibly adjust its performance according to different scenarios. Summary of the invention

[0005] The embodiment of the present application provides an electronic device, which can solve the problem in the prior art that the NFC module cannot flexibly adjust performance.

[0006] An embodiment of the present application provides an electronic device, including: a frame; an antenna assembly, which is arranged in the frame, the antenna assembly includes an NFC coil and an electrically adjustable magnetic sheet, and the electrically adjustable magnetic sheet is arranged on one side of the NFC coil; a first control assembly, the first control assembly and the electrically adjustable magnetic sheet are electrically connected to adjust the magnetic field strength of the electrically adjustable magnetic sheet.

[0007] In this way, in the electronic device provided in the embodiment of the present application, the electronic device includes a frame and an antenna assembly arranged in the frame, the antenna assembly includes an NFC coil and an electrically adjustable magnetic piece, the electrically adjustable magnetic piece is arranged on one side of the NFC coil, and the first control assembly is electrically connected to the electrically adjustable magnetic piece to adjust the magnetic field strength of the electrically adjustable magnetic piece so that the performance of the antenna assembly is adjustable.

[0008] Therefore, in the embodiment of the present application, the first control component adjusts the magnetic field strength of the electrically adjustable magnetic sheet to achieve tuning of the NFC coil, and flexibly controls the performance of the antenna component by controlling the magnetic field strength of the electrically adjustable magnetic sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0010] Figure 1A partial structural schematic diagram of an electronic device according to some embodiments of the present application;

[0011] Figure 2 A schematic diagram of the structure of a frame of an electronic device according to some embodiments of the present application;

[0012] Figure 3 It is a schematic diagram of the structure of the frame of the electronic device of some other embodiments of the present application;

[0013] Figure 4 A partial structural schematic diagram of an electronic device according to some embodiments of the present application;

[0014] Figure 5 A partial structural schematic diagram of an electronic device according to some embodiments of the present application;

[0015] Figure 6 for Figure 5 Cross-sectional view at AA in the middle;

[0016] Figure 7 This is a schematic diagram of the structure of an NFC coil of an electronic device according to some embodiments of the present application.

[0017] Description of Figure Numbers:

[0018] 100. Electronic equipment;

[0019] 110, frame; 111, first area; 112, second area;

[0020] 120, antenna assembly; 121, NFC coil; 122, electrically adjustable magnetic sheet; 123, first insulating member; 1211, first part; 1212, second part; 124, second insulating member; 125, ferrite magnetic sheet;

[0021] 130. functional component; 131. second control component;

[0022] 141. A first control component. DETAILED DESCRIPTION

[0023] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0024] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0025] In the description of the present application, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "middle", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] See also Figure 1 , Figure 1 It is a schematic diagram of a part of the structure of the electronic device 100 according to some embodiments of the present application.

[0028] like Figure 1 As shown, an embodiment of the present application provides an electronic device 100, which includes a frame 110, an antenna assembly 120 and a first control assembly 141. The antenna assembly 120 is arranged in the frame 110, and the antenna assembly 120 includes an NFC coil 121 and an electrically adjustable magnetic sheet 122. The electrically adjustable magnetic sheet 122 is arranged on one side of the NFC coil 121, and the first control assembly 141 and the electrically adjustable magnetic sheet 122 are electrically connected to adjust the magnetic field strength of the electrically adjustable magnetic sheet.

[0029] In the electronic device 100 provided in the embodiment of the present application, the electronic device 100 includes a frame 110 and an antenna assembly 120 arranged on the frame 110, the antenna assembly 120 includes an NFC coil 121 and an electrically adjustable magnetic sheet 122, the electrically adjustable magnetic sheet 122 is arranged on one side of the NFC coil 121, the first control component 141 is electrically connected to the electrically adjustable magnetic sheet 122 to adjust the magnetic field strength of the electrically adjustable magnetic sheet 122 to achieve tuning of the NFC coil 121, and the performance of the antenna assembly 120 is flexibly controlled by controlling the magnetic field strength of the electrically adjustable magnetic sheet 122.

[0030] The frame body 110 of the electronic device 100 includes a middle frame, a back plate and a screen covering both sides of the middle frame, and the antenna assembly 120 can be fixed on at least one of the middle frame, the back plate and the screen.

[0031] The NFC coil 121 is attached to the surface of a conductive object such as metal or to a place where there are metal devices nearby. The alternating electromagnetic field induced by the NFC coil 121 under the action of the signal sent by the card reader is easily attenuated by the eddy current of the metal, which greatly weakens the signal strength and causes the reading process to fail. Therefore, a magnetic sheet is set on the surface of the NFC coil 121 and the conductive object to reduce the absorption of the signal magnetic field of the NFC coil 121 by the metal material, improve the communication quality and stability, and effectively increase the communication induction distance by increasing the magnetic field strength.

[0032] In the related art, a ferromagnetic material sheet is provided on one side of the NFC coil 121, and the ferromagnetic material sheet can be used to enhance the signal strength of the NFC coil 121. However, the magnetic field strength of the ferromagnetic material sheet is fixed, and it is not easy to tune it with the NFC coil 121, and it is impossible to flexibly control the performance of the NFC coil 121, that is, it is impossible to flexibly adjust the communication sensing distance of the antenna assembly 120. That is, in some special usage scenarios, the communication sensing distance of the antenna assembly 120 does not meet the standard, resulting in the failure of the wireless communication function of the device.

[0033] Therefore, in the embodiment of the present application, an electrically adjustable magnetic sheet 122 with adjustable magnetic field strength is provided between the NFC coil 121 and the frame 110, and the magnetic field strength of the electrically adjustable magnetic sheet 122 is adjusted to tune with different types of NFC coils 121 to enhance the performance of the NFC coil 121 and the antenna assembly 120; and the communication sensing distance of the antenna assembly 120 is increased by enhancing the magnetic field strength of the electrically adjustable magnetic sheet 122, and the magnetic field strength of the electrically adjustable magnetic sheet 122 is reduced to enable the device to have a short-range wireless communication function and reduce the energy consumption of the antenna assembly 120.

[0034] Optionally, the electrically adjustable magnetic sheet 122 is disposed between the frame 110 and the NFC coil 121 ; or the electrically adjustable magnetic sheet 122 and the NFC coil 121 are disposed on both sides of the frame 110 in the thickness direction thereof.

[0035] Optionally, the electrically adjustable magnetic sheet 122 is a sheet structure bonded to the frame 110 or the NFC coil 121 ; or the electrically adjustable magnetic sheet 122 is a plated structure disposed on the surface of the frame 110 or the surface of the NFC coil 121 facing the frame 110 .

[0036] The first control component 141 is a circuit board, or the first control component 141 can be a device main board or a device sub-board.

[0037] The first control component 141 is electrically connected to the electrically adjustable magnetic sheet 122 , and currents or voltages of different strengths are applied to the electrically adjustable magnetic sheet 122 through the first control component 141 to adjust the magnetic field strength of the electrically adjustable magnetic sheet 122 .

[0038] In some embodiments, Figure 1 As shown, the NFC coil is in a working state, and the first control component 141 supplies power to the electrically adjustable magnetic sheet 122 ; the NFC coil 121 is in a non-working state, and the first control component 141 stops supplying power to the electrically adjustable magnetic sheet 122 .

[0039] In these embodiments, the NFC coil 121 is in a working state, the first control component 141 supplies power to the electrically adjustable magnetic sheet 122, and the magnetic field strength of the electrically adjustable magnetic sheet 122 is enhanced to enhance the performance of the antenna assembly 120; the NFC coil 121 is in a non-working state, the first control component 141 stops supplying power to the electrically adjustable magnetic sheet 122 to reduce the energy consumption of the antenna assembly 120, and the first control component 141 conveniently adjusts the magnetism of the electrically adjustable magnetic sheet 122 in an electrically controlled manner.

[0040] When the NFC coil 121 is in a non-working state, the first control component 141 stops supplying power to the electrically adjustable magnetic sheet 122 , and the magnetic field of the electrically adjustable magnetic sheet 122 disappears, or the magnetic field strength of the electrically adjustable magnetic sheet 122 is lower than when the NFC coil 121 is in a working state.

[0041] The NFC coil 121 is in working state, the first control component 141 supplies power to the electrically adjustable magnetic sheet 122 , and the magnetic field strength of the electrically adjustable magnetic sheet 122 is enhanced.

[0042] The first control component 141 is electrically connected to the electrically adjustable magnetic sheet 122 and the NFC coil 121 , and the first control component 141 simultaneously controls the NFC coil 121 to be in a working state or a non-working state.

[0043] The NFC coil 121 is in working state means that the device is in card swiping or card reading state. For example, when the device is in payment, access control and identity recognition scenarios, the NFC coil 121 is in working state.

[0044] Exemplarily, a user places the electronic device 100 in an embodiment of the present application close to the access control system, the antenna assembly 120 receives a communication request from the access control system, the first control assembly 141 supplies power to the electrically adjustable magnetic sheet 122 to increase the magnetic field strength of the electrically adjustable magnetic sheet 122, the signal strength of the antenna assembly 120 is enhanced, the access control system reads the signal of the antenna assembly 120, the access control system executes the reading result, and the access control is opened.

[0045] Alternatively, the user brings the electronic device 100 in the embodiment of the present application close to the payment system, the antenna component 120 receives a communication request from the payment system, the first control component 141 supplies power to the electrically adjustable magnetic sheet 122 to increase the magnetic field strength of the electrically adjustable magnetic sheet 122, the signal strength of the antenna component 120 is enhanced, the payment system reads the signal of the antenna component 120, the payment system executes the reading result, and the payment is successful.

[0046] In some embodiments, Figure 1 As shown, the material of the electrically tunable magnetic sheet 122 includes graphene, ferroelectric material, and metamaterial.

[0047] In these embodiments, the material of the electrically-tunable magnetic sheet 122 includes graphene and one of a ferroelectric material and a metamaterial, so that the magnetic field strength of the electrically-tunable magnetic sheet 122 is adjustable to achieve tuning of the NFC coil 121 to improve the performance of the antenna assembly 120, and the performance of the antenna assembly 120 can be flexibly controlled by controlling the magnetic field strength of the electrically-tunable magnetic sheet 122.

[0048] For example, the electrically adjustable magnetic sheet 122 is made of graphene oxide, which contains functional groups such as hydroxyl, epoxy, and carboxyl groups and exhibits semiconductor properties, and can also be magnetic. Oxygen can be introduced into the graphene oxide film by electric pulse excitation, and applying positive / negative electric pulses is an effective means to achieve bidirectional migration of oxygen ions, thereby achieving reversible regulation of the magnetic properties of the graphene oxide film.

[0049] Exemplarily, the electrically adjustable magnetic sheet 122 may be made of scheelite-type oxide DyCrO4, which has a linear magnetoelectric effect, and its magnetic field strength can be controlled by applying an electric field thereto.

[0050] Exemplarily, the material of the electrically tunable magnetic sheet 122 is a metamaterial. Specifically, after a capacitor diode is embedded in a split-ring resonator (SRR) structure, the capacitance of the diode is regulated by voltage so that the equivalent capacitance value of the SRR structure is changed, thereby achieving regulation of the equivalent magnetic permeability of the SRR.

[0051] In some embodiments, Figure 1As shown, the electronic device 100 further includes a functional component 130 disposed in the frame 110 , the first control component 141 is in communication connection with the functional component 130 , the functional component 130 is in working state, and the first control component 141 stops supplying power to the electrically adjustable magnetic sheet 122 .

[0052] In these embodiments, the functional component 130 is in working state, and the first control component 141 stops supplying power to the electrically adjustable magnetic piece 122 to reduce the influence of the magnetic field of the electrically adjustable magnetic piece 122 on the performance of the functional component 130 .

[0053] Optionally, the functional component 130 may be a camera module, a speaker module, a microphone module, or a screen.

[0054] Optionally, the functional component 130 includes a second control component 131 , and the second control component 131 is communicatively connected to the first control component 141 to coordinate the operation relationship between the control functional component 130 and the antenna component 120 .

[0055] Taking the camera module as an example, in the related art, the magnetic sheet of the antenna assembly 120 may interfere with the imaging of the camera module, causing the photos or videos to be distorted, blurred, and distorted in color. This is more likely to happen when the magnetic sheet is close to the camera module. In addition, the magnetic field generated by the magnetic sheet may also affect the autofocus and autoexposure functions of the camera module, reducing the stability of the camera module.

[0056] Therefore, in the embodiment of the present application, when the functional component 130 is in a working state, that is, when the camera module is in a photo taking, video recording or scanning state, when the speaker module is in a playing state, when the microphone module is in a receiving state, and when the screen is in a display state, the first control component 141 stops supplying power to the electrically adjustable magnetic sheet, and the magnetic field strength of the electrically adjustable magnetic sheet 122 decreases or the magnetic field of the electrically adjustable magnetic sheet 122 disappears, so as to improve the problem that the electrically adjustable magnetic sheet 122 affects the operation of the functional component 130.

[0057] Specifically, when the functional component 130 is in a non-working state and the NFC coil 121 is in a working state, the first control component 141 supplies power to the electrically adjustable magnetic sheet 122 , and the magnetic field strength of the electrically adjustable magnetic sheet 122 is enhanced.

[0058] See also Figure 2 , Figure 3 and Figure 4 , Figure 2 A schematic diagram of the structure of a frame of an electronic device according to some embodiments of the present application; Figure 3 It is a schematic diagram of the structure of the frame of the electronic device of some other embodiments of the present application; Figure 4 This is a schematic diagram of a portion of the structure of an electronic device according to some embodiments of the present application.

[0059] In some embodiments, Figures 1 to 4 As shown, the frame 110 includes a first area 111 and a second area 112 , the first area 111 is wound outside the second area 112 , at least part of the electrically adjustable magnetic sheet 122 and the NFC coil 121 are arranged in the first area 111 , and the functional component 130 is arranged in the second area 112 .

[0060] In these embodiments, the first region 111 is wound outside the second region 112, at least part of the electrically adjustable magnetic sheet 122 and the NFC coil 121 are disposed in the first region 111, and the functional component 130 is disposed in the second region 112, so that the electrically adjustable magnetic sheet 122 effectively improves the performance of the NFC coil 121 while reducing the overall area of ​​the antenna assembly 120 and the functional component 130.

[0061] For example, Figure 1 and Figure 4 As shown, the NFC coil 121 may be an NFC coil or an NFC wire frame.

[0062] At least a portion of the electrically adjustable magnetic sheet 122 is disposed in the first region 111 , and an orthographic projection of at least a portion of the electrically adjustable magnetic sheet 122 on the frame 110 is located in the first region 111 .

[0063] The NFC coil 121 is disposed in the first area 111 , the shape of the first area 111 matches the shape of the NFC coil 121 , the orthographic projection of the NFC coil 121 on the frame 110 is located in the first area 111 , the area of ​​the first area 111 is greater than or equal to the orthographic projection area of ​​the NFC coil 121 on the frame 110 , and the shape of the second area 112 matches the shape of the first area 111 .

[0064] like Figure 2 As shown, when the NFC coil 121 is a coil, the first area 111 is annular, the first area 111 is arranged around the outside of the second area 112, and the orthographic projection of the NFC coil 121 on the frame 110 is located in the first area 111; Figure 3 As shown, when the NFC coil 121 is a wire frame, the orthographic projection of the NFC coil 121 on the frame 110 is located in the first area 111, and the second area 112 is located in the area semi-enclosed by the first area 111, that is, the second area 112 does not exceed the NFC wire frame and the area formed by the line connecting the two ends of the NFC wire frame.

[0065] Optionally, the electrically tunable magnetic sheet 122 covers the entire first region 111 to enhance the performance of the antenna assembly 120 .

[0066] Optionally, the area of ​​the electrically adjustable magnetic sheet 122 is larger than the orthographic projection area of ​​the NFC coil 121 on the frame 110 , so as to enhance the performance of the antenna assembly 120 .

[0067] See also Figure 5 , Figure 5 This is a schematic diagram of a portion of the structure of an electronic device according to some embodiments of the present application.

[0068] In some embodiments, Figure 5 As shown, the frame 110 includes a first area 111 and a second area 112, the first area 111 is wound outside the second area 112, at least part of the electrically adjustable magnetic sheet 122 and the NFC coil 121 are arranged in the first area 111, the functional component 130 is arranged on a side of the first area 111 away from the second area 112, and at least part of the electrically adjustable magnetic sheet 122 extends into the second area 112.

[0069] In these embodiments, the first region 111 is wound outside the second region 112, at least part of the electrically adjustable magnetic sheet 122 and the NFC coil 121 are arranged in the first region 111, the functional component 130 is arranged on a side of the first region 111 away from the second region 112, and at least part of the electrically adjustable magnetic sheet 122 extends into the second region 112, so as to increase the layout area of ​​the electrically adjustable magnetic sheet 122 and improve the performance of the antenna assembly 120.

[0070] Optionally, the electrically tunable magnetic sheets 122 in the first region 111 and the second region 112 are integrally formed to reduce the difficulty of processing the antenna assembly 120 .

[0071] In some embodiments, Figure 5 As shown, the electrically adjustable magnetic sheet 122 covers the entire first region 111 and the second region 112 .

[0072] In these embodiments, the electrically tunable magnetic sheet 122 covers the entire first region 111 and the second region 112 , so as to increase the layout area of ​​the electrically tunable magnetic sheet 122 and improve the performance of the antenna assembly 120 .

[0073] Optionally, the electrically adjustable magnetic sheet 122 and the NFC coil 121 match in shape. For example, the NFC coil 121 is a circular coil and the electrically adjustable magnetic sheet 122 is a circular sheet; the NFC coil 121 is a rectangular frame and the electrically adjustable magnetic sheet 122 is a rectangular sheet.

[0074] See also Figure 6 , Figure 6 for Figure 5 Cross-sectional view at AA in the middle.

[0075] In some embodiments, Figure 5 and Figure 6 As shown, the antenna assembly 120 further includes a first insulating member 123 , which is disposed between the electrically adjustable magnetic sheet 122 and the NFC coil 121 to insulate the electrically adjustable magnetic sheet 122 and the NFC coil 121 from each other.

[0076] In these embodiments, the first insulating member 123 is disposed between the electrically adjustable magnetic sheet 122 and the NFC coil 121 to insulate the electrically adjustable magnetic sheet 122 and the NFC coil 121 from each other, thereby reducing the effect of the electrically adjustable magnetic sheet 122 on the NFC coil 121 when power is supplied.

[0077] Optionally, the first insulating member 123 is an insulating adhesive layer, and the electrically adjustable magnetic sheet 122 is bonded to the NFC coil 121 via the insulating adhesive layer, or the first insulating member 123 is an insulating sheet bonded between the electrically adjustable magnetic sheet 122 and the NFC coil 121 .

[0078] Exemplarily, the electrically adjustable magnetic sheet 122 is a ferroelectric material, and the ferroelectric material and the NFC coil 121 are insulated from each other by a first insulating member 123 .

[0079] See also Figure 7 , Figure 7 This is a schematic diagram of the structure of an NFC coil of an electronic device according to some embodiments of the present application.

[0080] In some embodiments, Figure 4 and Figure 7 As shown, the antenna assembly 120 also includes a ferrite magnetic sheet 125, the NFC coil 121 includes a first part 1211 and a second part 1212 that are connected to each other, the distance between the first part 1211 and the functional component 130 is greater than the distance between the second part 1212 and the functional component 130, the orthographic projection of the ferrite magnetic sheet 125 on the NFC coil 121 is located at the first part 1211, and the orthographic projection of the electrically adjustable magnetic sheet 122 on the NFC coil 121 is located at the second part 1212.

[0081] In these embodiments, the NFC coil 121 includes a first part 1211 and a second part 1212 that are connected to each other, the distance between the first part 1211 and the functional component 130 is greater than the distance between the second part 1212 and the functional component 130, the orthographic projection of the ferrite magnetic sheet 125 on the NFC coil 121 is located at the first part 1211, and the orthographic projection of the electrically adjustable magnetic sheet 122 on the NFC coil 121 is located at the second part 1212, so as to reduce the preparation cost of the antenna assembly 120 while reducing the impact of the antenna assembly 120 on the functional component 130.

[0082] The ferrite magnetic sheet 125 is made of ferrite and can improve the performance of the antenna assembly 120 . However, due to the magnetic fixation of the ferrite magnetic sheet 125 , the material cost of the ferrite magnetic sheet 125 is lower than the material cost of the electrically adjustable magnetic sheet 122 .

[0083] Exemplarily, the functional component 130 is arranged on one side of the NFC coil 121, the first part 1211 is arranged on the side of the NFC coil 121 close to the functional component 130, the electrically adjustable magnetic sheet 122 is arranged close to the functional component 130, the second part 1212 is arranged on the side of the NFC coil 121 away from the functional component 130, and the ferrite magnetic sheet 125 is arranged away from the functional component 130.

[0084] Optionally, multiple functional components 130 are arranged at intervals, and the part of the NFC coil 121 close to the functional component 130 is the first part 1211, and the first parts 1211 are connected to each other, or the second part 1212 is arranged between the first parts 1211, and the sizes of the first parts 1211 and the second parts 1212 can be designed by oneself.

[0085] In some embodiments, Figure 4 and Figure 7 As shown, the antenna assembly 120 further includes a second insulating member 124 , which is disposed between the electrically adjustable magnetic sheet 122 and the ferrite magnetic sheet 125 to insulate the electrically adjustable magnetic sheet 122 and the ferrite magnetic sheet 125 from each other.

[0086] In these embodiments, the second insulating member 124 is disposed between the electrically adjustable magnetic sheet 122 and the ferrite magnetic sheet 125 to insulate the electrically adjustable magnetic sheet 122 and the ferrite magnetic sheet 125 from each other, thereby reducing the impact of the electrically adjustable magnetic sheet 122 on the ferrite magnetic sheet 125 when power is supplied.

[0087] Optionally, the second insulating member 124 is an insulating adhesive layer, and the electrically adjustable magnetic sheet 122 is bonded to the ferrite magnetic sheet 125 via the insulating adhesive layer, or the second insulating member 124 is an insulating sheet bonded between the electrically adjustable magnetic sheet 122 and the ferrite magnetic sheet 125 .

[0088] Exemplarily, the electrically adjustable magnetic sheet 122 is a ferroelectric material, and the ferroelectric material and the ferrite magnetic sheet 125 are insulated from each other by a second insulating member 124 .

[0089] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. An electronic device, characterized in that: include: Frame; An antenna assembly is arranged on the frame, the antenna assembly comprises an NFC coil and an electrically adjustable magnetic sheet, and the electrically adjustable magnetic sheet is arranged on one side of the NFC coil; A first control component is electrically connected to the electrically adjustable magnetic sheet to adjust the magnetic field strength of the electrically adjustable magnetic sheet.

2. The electronic device according to claim 1, characterized in that: When the NFC coil is in a working state, the first control component supplies power to the electrically adjustable magnetic sheet; when the NFC coil is in a non-working state, the first control component stops supplying power to the electrically adjustable magnetic sheet.

3. The electronic device according to claim 2, characterized in that: The electronic device further comprises a functional component arranged in the frame, the first control component is in communication connection with the functional component, the functional component is in a working state, and the first control component stops supplying power to the electrically adjustable magnetic sheet.

4. The electronic device according to claim 3, characterized in that: The frame includes a first area and a second area, wherein the first area is arranged around the outside of the second area. At least part of the electrically adjustable magnetic sheet and the NFC coil are arranged in the first area, and the functional component is arranged in the second area.

5. The electronic device according to claim 3, characterized in that: The frame includes a first area and a second area, wherein the first area is arranged around the outside of the second area. At least part of the electrically adjustable magnetic sheet and the NFC coil are arranged in the first area, the functional component is arranged on a side of the first area away from the second area, and at least part of the electrically adjustable magnetic sheet extends into the second area.

6. The electronic device according to claim 5, characterized in that: The electrically adjustable magnetic sheet covers the entire first area and the second area.

7. The electronic device according to claim 1, characterized in that: The antenna assembly further includes a first insulating member, which is disposed between the electrically adjustable magnetic sheet and the NFC coil so as to insulate the electrically adjustable magnetic sheet and the NFC coil from each other.

8. The electronic device according to claim 3, characterized in that: The antenna assembly also includes a ferrite magnetic sheet, the NFC coil includes a first part and a second part that are connected to each other, the distance from the first part to the functional component is greater than the distance from the second part to the functional component, the orthographic projection of the ferrite magnetic sheet on the NFC coil is located in the first part, and the orthographic projection of the electrically adjustable magnetic sheet on the NFC coil is located in the second part.

9. The electronic device according to claim 8, characterized in that: The antenna assembly further includes a second insulating member, which is disposed between the electrically adjustable magnetic sheet and the ferrite magnetic sheet to insulate the electrically adjustable magnetic sheet and the ferrite magnetic sheet from each other.

10. The electronic device according to claim 1, characterized in that: The material of the electrically tunable magnetic sheet includes one of graphene, ferroelectric material and metamaterial.

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