A housing assembly and electronic device

Abstract

Embodiments of the present application provide a shell assembly and an electronic device. The shell assembly is applied to the electronic device, and includes a back cover, a camera decoration piece, and a near field communication (NFC) antenna. The camera decoration piece is mounted on the back cover, and the NFC antenna is attached to the camera decoration piece. A projection of the NFC antenna along a first direction is located within a projection range of the camera decoration piece along the first direction, and the first direction is a thickness direction of the electronic device. The NFC antenna provided by the embodiments of the present application does not need to bypass the camera decoration piece, that is, the NFC antenna does not occupy the space outside the camera decoration piece, and thus is not affected by the size of the camera decoration piece. In addition, since the NFC antenna is located on the inner side of the camera decoration piece, the antenna clearance environment is good, and the performance of the NFC antenna and the performance of other antennas around the NFC antenna are not affected.

Description

[0001] This application is a divisional application of the original application with the application number 202210825371.8 and the original filing date of July 13, 2022, and the entire contents of the original application are incorporated herein by reference. TECHNICAL FIELD

[0002] Embodiments of the present application relate to the field of electronic devices, and in particular to a shell assembly and an electronic device. BACKGROUND

[0003] In recent years, with the wide application of near field communication (NFC) technology, more and more users use NFC technology to realize mobile payment and other functions. At the same time, with the continuous development of electronic product forms, one trend is that the size of the camera decoration piece of the electronic device is continuously increasing, and the number of cameras is continuously increasing. The NFC antenna is generally designed near the camera decoration piece. This development trend of electronic devices compresses the design space of the NFC antenna, thereby affecting the performance of the NFC antenna.

[0004] Therefore, how to design an NFC antenna scheme compatible with a large-size camera decoration piece while ensuring the performance of the NFC antenna has become a bottleneck in architecture stacking. SUMMARY

[0005] Embodiments of the present application provide a shell assembly and an electronic device, which can be suitable for a large-size camera decoration piece while ensuring the performance of the NFC antenna.

[0006] In a first aspect, a shell assembly is provided, which is applied to an electronic device. The shell assembly includes a back cover, a camera decoration piece, which is mounted on the back cover, and an NFC antenna, which is attached to the camera decoration piece. The projection of the NFC antenna along a first direction is within the projection range of the camera decoration piece along the first direction, and the first direction is the thickness direction of the electronic device.

[0007] In the shell assembly provided by the embodiments of the present application, the NFC is attached to the camera decoration piece, and the projection of the NFC antenna along the thickness direction of the electronic device is within the projection range of the camera decoration piece. That is, the NFC antenna does not occupy the space outside the camera decoration piece, and thus is not affected by the size of the camera decoration piece. At the same time, since the NFC antenna is located on the inner side of the camera decoration piece, the antenna clearance environment is good, and thus the performance of the NFC antenna and the performance of other antennas around are not affected. In addition, the problem of read small card blind area under the large-size camera decoration piece can be solved, thereby increasing the user experience.

[0008] With reference to the first aspect, in some implementations of the first aspect, the camera decoration piece includes a first decoration piece and a second decoration piece, the first decoration piece is disposed on a side of the second decoration piece away from the back cover, a projection of the first decoration piece along the first direction is within a projection range of the second decoration piece along the first direction, and a projection of the NFC antenna along the first direction is within a projection range of the first decoration piece along the first direction.

[0009] With reference to the first aspect, in some implementations of the first aspect, the first decoration piece, the NFC antenna, and the second decoration piece are disposed in a stack along the first direction, and the NFC antenna is located between the first decoration piece and the second decoration piece.

[0010] With reference to the first aspect, in some implementations of the first aspect, the NFC antenna is attached to a side of the first decoration piece close to the back cover, or the NFC antenna is attached to a side of the second decoration piece away from the back cover.

[0011] In the shell assembly provided in the embodiments of the present application, the camera decoration piece includes a first decoration piece and a second decoration piece, the NFC antenna can be disposed between the first decoration piece and the second decoration piece, and along the thickness direction of the electronic device, a projection of the first decoration piece is within a projection range of the second decoration piece, and a projection of the NFC antenna is within a projection range of the first decoration piece. That is, the NFC antenna does not occupy the space outside the first decoration piece, and thus is not affected by the size of the camera decoration piece. At the same time, since the NFC antenna is located inside the first decoration piece, the antenna clearance environment is good, and thus the performance of the NFC antenna and the performance of other surrounding antennas are not affected. In addition, the problem of reading small cards in a blind area under a large-size camera decoration piece can be solved, thereby increasing the user experience.

[0012] With reference to the first aspect, in some implementations of the first aspect, the second decoration piece includes a metal part and a non-metal part, the first decoration piece, the second decoration piece, and the NFC antenna are disposed in a stack along the first direction, the second decoration piece is located between the first decoration piece and the NFC antenna, and the NFC antenna is attached to a side of the non-metal part close to the back cover.

[0013] With reference to the first aspect, in some implementations of the first aspect, the non-metal part is obtained through an injection molding process.

[0014] With reference to the first aspect, in some implementations of the first aspect, the first decoration piece is of a non-metal material, and the second decoration piece is of a metal material.

[0015] The first decoration piece can be of a non-metal material such as glass or ceramic, which is not limited in the present application.

[0016] In the shell assembly provided by the embodiment of the present application, the second decoration piece can obtain a non-metallic part through an injection molding process, and the NFC antenna can be attached to one side of the non-metallic part close to the back cover. That is, the NFC antenna can be arranged between the first decoration piece and the second decoration piece, or between the second decoration piece and the back cover. The various arrangement modes of the NFC antenna do not occupy the space outside the first decoration piece, and thus are not affected by the size of the camera decoration piece. At the same time, since the NFC antenna is located inside the first decoration piece, the antenna has a good clear space environment, and thus the performance of the NFC antenna and the performance of other antennas around the NFC antenna are not affected. In addition, the problem of a read-small-card blind area under a large-size camera decoration piece can be solved, thereby increasing the user experience.

[0017] With reference to the first aspect, in some implementations of the first aspect, the NFC antenna includes at least one feeding point, a projection of the at least one feeding point along the first direction is located inside a projection area of the camera decoration piece along the first direction.

[0018] Further, a projection of the at least one feeding point along the first direction is located inside a projection area of the first decoration piece along the first direction.

[0019] With reference to the first aspect, in some implementations of the first aspect, the at least one feeding point is electrically connected to a mainboard of the electronic device.

[0020] It can be understood that the NFC antenna can be directly fed to the mainboard, that is, without the need to arrange a mainboard support on the mainboard of the electronic device, so as to reduce the overall thickness and weight of the electronic device, and to thin the electronic device.

[0021] With reference to the first aspect, in some implementations of the first aspect, the electronic device includes a camera, and when the shell assembly is mounted on the electronic device, a projection of the NFC antenna along the first direction does not coincide with a projection of the camera along the first direction.

[0022] It should be understood that the camera can be arranged within the coverage range of the camera decoration piece, and further, the camera can also be arranged within the coverage range of the first decoration piece. That is, the camera decoration piece or the first decoration piece can protect the camera and prevent the camera from being contaminated.

[0023] When the shell assembly provided by the embodiment of the present application is mounted on the electronic device, a projection of the NFC antenna along the thickness direction of the electronic device does not coincide with a projection of the camera along the thickness direction of the electronic device, that is, the NFC antenna can surround the camera, but will not block the camera, thereby ensuring that the camera can work normally.

[0024] With reference to the first aspect, in some implementations of the first aspect, the camera decoration piece is a non-planar structure, and the NFC antenna is a non-planar structure processed through a bending process and / or a welding process to adapt to the camera decoration piece.

[0025] For the camera decoration piece being a non-planar structure, the shell assembly provided in the embodiments of the present application processes the NFC antenna through a bending process, a welding process, a bending process and a welding process, so that the NFC antenna is attached to the camera decoration piece with various structures.

[0026] With reference to the first aspect, in some implementations of the first aspect, the NFC antenna is processed through a waterproof and dustproof process.

[0027] With reference to the first aspect, in some implementations of the first aspect, the NFC antenna includes a flexible circuit board (FPC) antenna and a ferrite, the ferrite is used to isolate the FPC antenna from the second decoration piece, and the ferrite is arranged on a side of the FPC antenna close to the back cover.

[0028] It should be understood that by arranging the ferrite, the FPC antenna can be isolated from the metal decoration piece, so that the influence of the metal decoration piece on the FPC antenna can be avoided.

[0029] With reference to the first aspect, in some implementations of the first aspect, the shell assembly further includes a magnetic isolation sheet, the magnetic isolation sheet is used to isolate the magnetism of the ferrite.

[0030] It should be understood that by arranging the magnetic isolation sheet in the interference area of the camera, the influence of the magnetism of the ferrite on the camera can be reduced.

[0031] With reference to the first aspect, in some implementations of the first aspect, the FPC antenna and the ferrite are respectively processed through a waterproof and dustproof process, wherein the FPC antenna is processed through a separate waterproof process, and the ferrite is processed through a waterproof and edge-sealing process of a polyethylene terephthalate (PET) film.

[0032] The shell assembly provided in the present application can process the FPC antenna and the ferrite through separate waterproof and dustproof processes, so that the waterproof and dustproof effects of the FPC antenna and the ferrite can be ensured.

[0033] The second aspect provides an electronic device, including: a camera; the shell assembly of the first aspect and any one of the implementation manners thereof; and the camera decoration piece of the shell assembly is used to decorate the camera.

[0034] It should be understood that the camera decoration piece can protect the camera and the NFC antenna, and can prevent the camera and the NFC antenna from being exposed, that is, the camera decoration piece can make the camera waterproof and dustproof, and can play a protective and decorative role.

[0035] With reference to the second aspect, in some implementations of the second aspect, the electronic device further includes a mainboard, and the NFC antenna is electrically connected to the mainboard.

[0036] The electronic device provided by the embodiments of the present application does not need the NFC antenna to bypass the camera decoration piece, that is, the NFC antenna does not occupy the space outside the camera decoration piece, and thus is not affected by the size of the camera decoration piece. Moreover, since the NFC antenna is located inside the camera decoration piece, the antenna has a good clearance environment, and thus does not affect the performance of the NFC antenna and the performance of other antennas around. In addition, the electronic device provided by the embodiments of the present application can also solve the problem of the read small card blind area under the large size camera decoration piece, and increase the user experience. In addition, the NFC antenna can be directly fed with power by the mainboard of the electronic device, so that the mainboard support does not need to be arranged on the mainboard of the electronic device, and the overall thickness and weight of the electronic device can be reduced, and the electronic device can be thinned. At the same time, when the camera decoration piece is designed as a non-planar structure, the NFC antenna can be attached to the camera decoration piece with various structures through a bending process and / or a welding process. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 is a schematic diagram of a design of an NFC antenna.

[0038] Figure 2 is a schematic diagram of another design of an NFC antenna.

[0039] Figure 3 is a schematic diagram of a shell assembly provided by an embodiment of the present application.

[0040] Figure 4 is a schematic diagram of a shell assembly provided by an embodiment of the present application.

[0041] Figure 5 is a schematic diagram of a design of an NFC antenna provided by an embodiment of the present application.

[0042] Figure 6 is a schematic diagram of another shell assembly structure provided by an embodiment of the present application.

[0043] Figure 7 is a schematic diagram of another shell assembly structure provided by an embodiment of the present application.

[0044] Figure 8 is a schematic diagram of an electronic device provided by an embodiment of the present application.

[0045] Figure 9 is a schematic diagram of a cross section of an electronic device along the xz plane provided by an embodiment of the present application.

[0046] Figure 10is another schematic diagram of a cross section of an electronic device along the xz plane provided by an embodiment of the present application.

[0047] Figure 11 is another schematic diagram of a cross section of an electronic device along the xz plane provided by an embodiment of the present application.

[0048] Figure 12 is another schematic diagram of a cross section of an electronic device along the xz plane provided by an embodiment of the present application. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present application will be described below with reference to the drawings.

[0050] The terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to be limiting of the present application. As used in the specification and the appended claims, the singular forms "a," "an" and "the" are intended to include both singular and plural forms, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. Also, it will be understood that the term "and / or," as used herein, encompasses all possible combinations of one or more of the associated listed items. The notation "A / B" generally means that A or B is a "or" relationship between the front and rear associated objects. The size of the serial number of each process below does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application. For example, in the embodiments of the present application, "110", "210", "310" and the like are only for the convenience of description and are not limited to the order of execution steps.

[0051] In this specification, the reference "one embodiment" or "some embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. The appearances of the phrase "example" or "for example" in various places in the specification are intended to present illustrative examples that do not limit the application in any way. Any embodiment or design solution described as "example" or "for example" in the present application should not be interpreted as more preferred or advantageous than other embodiments or design solutions. Rather, the use of "example" or "for example" is intended to present relevant concepts in a concrete manner. The terms "include", "contain", "have" and their variants mean "including but not limited to", unless otherwise specifically emphasized. In the embodiments of the present application, the descriptions of "when", "in the case of", "if" and "if" mean that the device will make corresponding processing under certain objective conditions, not limited to time, and does not require the device to have a judgment action when implemented, nor does it mean that there are other limitations.

[0052] The electronic device described in the embodiments of the present application can be a mobile phone, a tablet computer, a desktop computer, a laptop computer, a handheld computer, a notebook computer, an ultra-mobile personal computer (UMPC), a cellular phone, a personal digital assistant (PDA), an augmented reality (AR) device, a virtual reality (VR) device, an artificial intelligence (AI) device, a wearable device, an in-vehicle device, a smart home device, and / or a smart city device, and the embodiments of the present application do not specially limit the specific type of the electronic device.

[0053] The electronic device can include a housing, a processor, a battery, an antenna, a screen, an audio module, a speaker, and the like. The wireless communication function of the electronic device can be implemented through the antenna, a mobile communication module, a modulation / demodulation processor, and a baseband processor, and the like. Meanwhile, the antenna of the electronic device can include an NFC antenna, which is an antenna using near field communication technology, for transmitting and receiving electromagnetic wave signals, thereby implementing an NFC communication function.

[0054] The embodiments of the present application define the coordinate system of the drawing. The x direction, the y direction, and the z direction are perpendicular to each other, the z direction can be understood as the thickness direction of the electronic device, the y direction can be understood as the width direction of the electronic device, and the x direction can be understood as the length direction of the electronic device, or the y direction can be understood as the length direction of the electronic device, and the x direction can be understood as the width direction of the electronic device. Illustratively, in the embodiments of the present application, the y direction is taken as the length direction of the electronic device, and the x direction is taken as the width direction of the electronic device, and the setting of the NFC antenna is described as an example.

[0055] Figure 1 is a schematic diagram of a design of the NFC antenna.

[0056] Figure 1It is shown that a NFC antenna double-end design mode around a metal decoration piece, in which the NFC antenna 130 is arranged close to the camera decoration piece 110. Specifically, the electronic device 100 can include a camera decoration piece 110, a camera 120, a NFC antenna 130 and a back cover 140. Among them, the camera decoration piece 110 is used to decorate the camera 120, the camera decoration piece 110 and the NFC antenna 130 are both mounted on the back cover 140, and the projection of the NFC antenna in the z direction is located outside the projection of the camera decoration piece in the z direction, that is, the NFC antenna 130 bypasses the camera decoration piece 110 and occupies the space outside the camera decoration piece 110.

[0057] More specifically, the camera decoration piece 110 can include a non-metal appearance piece 111 and a metal decoration piece 112, wherein the non-metal appearance piece 111, the metal decoration piece 112 and the NFC antenna 130 are stacked in the z direction, the metal decoration piece 112 is located between the non-metal appearance piece 111 and the NFC antenna 130, and the NFC antenna 130 is arranged on the mainboard support of the electronic device mainboard. It can be understood that the projection of the non-metal appearance piece 111 in the z direction is located within the projection of the metal decoration piece 112 in the z direction, and the projection of the NFC antenna 130 in the z direction is located outside the projection of the metal decoration piece 112 in the z direction.

[0058] Such a NFC antenna design mode can have the following disadvantages: First, as the size of the camera decoration piece of the electronic device is increasing and the number of cameras is increasing, when the NFC antenna is arranged outside the camera decoration piece, it will be affected by the size of the camera decoration piece, resulting in insufficient setting position of the NFC antenna, so that the NFC antenna is very close to the frame antenna, affecting the performance of the NFC antenna and the performance of other antennas around. Second, as the size of the camera decoration piece is increasing, when the NFC antenna is routed around the camera decoration piece, there may be a small card reading blind area in the center position of the camera decoration piece, thereby affecting the user experience. Third, the NFC antenna is generally attached to the mainboard support of the mainboard, so that when designing the NFC antenna, the mainboard support needs to be placed on the mainboard, thereby increasing the overall thickness and weight of the electronic device, which is not conducive to the thinning of the electronic device. Therefore, Figure 1 The shown NFC antenna design mode cannot meet the development requirements of the electronic device.

[0059] Figure 2 It is another design mode schematic diagram of the NFC antenna.

[0060] Figure 2The single-end design of the NFC antenna is shown, that is, the NFC antenna single-end design of multiplexing the metal frame, in which the NFC antenna 230 is disposed on the frame 240. Specifically, the electronic device 200 can include a camera decoration 210, a camera 220, an NFC antenna 230, a frame 240, and a back cover 250. More specifically, the camera decoration 210 can include a non-metal appearance piece 211 and a metal decoration 212. The camera decoration 110 is used to decorate the camera 120; the non-metal appearance piece 211 and the metal decoration 212 are both mounted on the back cover 250, and the projection of the non-metal appearance piece 211 in the z direction is within the projection of the metal decoration 212 in the z direction; the NFC antenna 230 is disposed on the frame 240, and multiplexes the main screen antenna in the frame 240.

[0061] When this NFC antenna design is used, because the NFC antenna uses the NFC antenna single-end scheme of multiplexing the metal frame, the NFC antenna can be limited by the design of the main screen antenna, the structure, and the antenna environment when in use. In addition, the NFC antenna design is also limited by the metal grounding position, the branch length, and the antenna clearance, and especially when the branch length is small and the clearance environment is poor, the performance of the NFC antenna is poor. Therefore, Figure 2 The NFC antenna design shown cannot meet the development requirements of the electronic device.

[0062] To solve the above technical problems, the shell assembly and the electronic device provided by the embodiments of the present application can improve the performance of the NFC antenna while being suitable for a large-size camera decoration.

[0063] Figure 3 And Figure 4 is a shell assembly schematic diagram provided by the embodiments of the present application.

[0064] The shell assembly can include a back cover 20, a camera decoration 30, and an NFC antenna 40, the camera decoration 30 and the NFC antenna 40 are both mounted on the back cover 20, and the NFC antenna 40 is attached to the camera decoration 30. Wherein the projection of the NFC antenna 40 in the first direction is within the projection of the camera decoration 30 in the first direction, and the first direction is the thickness direction of the electronic device.

[0065] Optionally, as Figure 3As shown, the camera decorative piece 30 is a non-metallic exterior component. In this case, the NFC antenna 40 can be positioned between the non-metallic exterior component and the back cover 20, and the NFC antenna 40 can be attached to the non-metallic exterior component. That is, the projection of the NFC antenna 40 along the first direction is within the range of the projection of the non-metallic exterior component along the first direction. The specific placement of the NFC antenna 40 can be found in [reference needed]. Figure 9 In this configuration, the NFC antenna 40 will not occupy space outside the camera trim 30, and thus will not be affected by the size of the camera trim 30.

[0066] Optionally, the camera decorative element 30 may include a first decorative element 310 and a second decorative element 320. The first decorative element 310 is disposed on the side of the second decorative element 320 away from the back cover 20. The NFC antenna 40 may be disposed within the projection coverage area of ​​the camera decorative element 30, that is, the projection of the first decorative element 310 along the first direction is within the projection range of the second decorative element 320 along the first direction, and the projection of the NFC antenna 40 along the first direction is within the projection range of the second decorative element 320 along the first direction. In this case, the NFC antenna 40 may be partially located outside the projection area formed by the first decorative element 310 along the first direction, but entirely within the projection area formed by the second decorative element 320 along the first direction. Thus, the NFC antenna 40 will not occupy the space outside the camera decorative element 30, and is therefore not affected by the size of the camera decorative element 30.

[0067] Optionally, such as Figure 4 As shown, the camera decorative element 30 may include a first decorative element 310 and a second decorative element 320. The first decorative element 310 is disposed on the side of the second decorative element 320 away from the back cover 20, and the projection of the first decorative element 310 along a first direction is within the range of the projection of the second decorative element 320 along the first direction. The projection of the NFC antenna 40 along the first direction is also within the range of the projection of the first decorative element 310 along the first direction. That is, the projection area of ​​the first decorative element 310 coincides with the projection area of ​​the second decorative element 320, and the projection area of ​​the NFC antenna 40 coincides with the projection area of ​​the first decorative element 310. Specifically, the projection area of ​​the first decorative element 310 along the xy-plane is less than or equal to the projection area of ​​the second decorative element 320 along the xy-plane, and the projection area of ​​the NFC antenna 40 along the xy-plane is less than or equal to the projection area of ​​the first decorative element 310 along the xy-plane. In this case, the NFC antenna 40 will not occupy the space outside the first decorative element 310, and therefore will not be affected by the size of the camera decorative element 30.

[0068] In a possible implementation, the first decorative member 310, the NFC antenna 40, and the second decorative member 320 are arranged in a first direction in a stacked manner, and the NFC antenna 40 is arranged between the first decorative member 310 and the second decorative member 320, to implement the NFC communication function of the electronic device. It should be understood that the NFC antenna 40 can be designed to be hidden between the first decorative member 310 and the second decorative member 320 by plating or coating. It should also be understood that the projection area of the NFC antenna 40 coincides with the projection area of the first decorative member 310, and the projection area of the NFC antenna 40 also coincides with the projection area of the second decorative member 320. That is, the projection area of the NFC antenna 40 is inside the projection area of the first decorative member 310, and the projection area of the NFC antenna 40 is also inside the projection area of the second decorative member 320. In other words, the projection area of the NFC antenna 40 along the xy plane is less than or equal to the projection area of the first decorative member 310 along the xy plane, and the projection area of the NFC antenna 40 along the xy plane is also less than or equal to the projection area of the second decorative member 320 along the xy plane.

[0069] Optionally, the NFC antenna 40 can be attached to one side of the first decorative member 310 close to the rear cover 20.

[0070] Optionally, the NFC antenna 40 can also be attached to one side of the second decorative member 320 away from the rear cover 20. The specific arrangement position of the NFC antenna 40 can be referred to Figure 10 .

[0071] In another possible implementation, when the second decorative member 320 is locally injection molded, the NFC antenna 40 can be designed below or above the injection molded structure. That is, the second decorative member 320 includes a metal part and a non-metal part, the first decorative member 310, the second decorative member 320, and the NFC antenna 40 are arranged in a first direction in a stacked manner, and the second decorative member 320 is located between the first decorative member 310 and the NFC antenna 40. In other words, along the first direction, the projection area of the NFC antenna 40 overlaps the projection area of the first decorative member 310, and the projection area of the NFC antenna 40 also overlaps the projection area of the second decorative member 320. That is, the projection area of the NFC antenna 40 along the xy plane is less than or equal to the projection area of the first decorative member 310 along the xy plane, and the projection area of the NFC antenna 40 along the xy plane is also less than or equal to the projection area of the second decorative member 320 along the xy plane.

[0072] Optionally, the NFC antenna 40 can be attached to one side of the non-metal part of the second decorative member 320 away from the rear cover 20.

[0073] Optionally, the NFC antenna 40 can also be attached to the non-metallic part of the second decorative member 320 close to the side of the rear cover 20. The specific arrangement position of the NFC antenna 40 can refer to the following description. Figure 11 .

[0074] It can be understood that the first decorative member 310 can be made of non-metallic material, for example, glass, ceramic, etc., and the second decorative member 320 can be made of metal material. The non-metallic part of the second decorative member 320 is obtained by injection molding process.

[0075] In the embodiment of the present application, the NFC antenna does not need to bypass the camera decorative member, that is, the NFC antenna does not occupy the space outside the camera decorative member, so as not to be affected by the size of the camera decorative member. At the same time, since the NFC antenna is located inside the camera decorative member, the antenna clearance environment is good, which does not affect the performance of the NFC antenna and the performance of other antennas around. In addition, it can also solve the problem of reading small card blind area under the large size camera decorative member, so as to increase the user experience.

[0076] Optionally, the NFC antenna 40 can be composed of three NFC antennas with different design forms. In the embodiment of the present application, the number of NFC antennas is not limited, and three NFC antennas are exemplarily described herein. It should be understood that more NFC antennas (i.e., the number of antennas is greater than three) or less NFC antennas (i.e., the number of antennas is less than three) can also be included in the present application.

[0077] It should be understood that the NFC antenna 40 can be made of flexible printed circuit board (FPC) combined with ferrite. That is, the NFC antenna 40 can include a flexible circuit board FPC antenna and a ferrite, and the ferrite is used to isolate the FPC antenna and the second decorative member 320, that is, the ferrite can reduce the influence of the metal decorative member on the FPC antenna, and the ferrite can be arranged on the side of the FPC antenna close to the rear cover 20.

[0078] In some embodiments, the shell assembly further comprises a magnetic isolation sheet for isolating the magnetic property of the ferrite. The magnetic isolation sheet can be laid in the interference area of the camera 50 so as to reduce the influence of the magnetic property of the ferrite on the camera 50. Optionally, the magnetic isolation sheet can be arranged around the camera 50. Optionally, the magnetic isolation sheet can be attached between the ferrite and the second decorative piece 320, i.e. along the first direction, the side of the second decorative piece 320 close to the first decorative piece 310 can be provided with the magnetic isolation sheet, the side of the magnetic isolation sheet close to the first decorative piece 310 can be provided with the ferrite, and the side of the ferrite close to the first decorative piece 310 can be provided with the FPC. Optionally, the magnetic isolation sheet can also be attached below the second decorative piece 320, i.e. along the first direction, the side of the second decorative piece 320 away from the first decorative piece 310 can be provided with the magnetic isolation sheet, the side of the second decorative piece 320 close to the first decorative piece 310 can be provided with the ferrite, and the side of the ferrite close to the first decorative piece 310 can be provided with the FPC.

[0079] It should be understood that the NFC antenna 40 can be subjected to a waterproof and dustproof edge covering process in the embodiments of the present application, i.e. the NFC antenna 40 is obtained by a waterproof and dustproof process. Optionally, the ferrite can be subjected to a polyester (PET) waterproof edge covering process, and the FPC can be subjected to a single waterproof process, so that the NFC antenna 40 is located outside the waterproof ring of the second decorative piece 320. That is, the FPC antenna and the ferrite are respectively obtained by a waterproof and dustproof process, wherein the FPC antenna is obtained by a single waterproof process, and the ferrite is obtained by a polyester (PET) waterproof edge covering process.

[0080] In addition, the NFC antenna 40 can be adapted to be arranged in a camera decorative piece with a planar structure or a camera decorative piece with a local micro-curved structure, and the NFC antenna can be locally expanded in a micro-curved manner. When the camera decorative piece is designed as a 3D non-planar structure, i.e. a non-planar structure appears inside the camera decorative piece, the corresponding NFC antenna cannot be kept on the same plane, and a corresponding 3D NFC antenna needs to be designed. The design of the NFC antenna will be described in detail in combination with Figure 6 and Figure 7 will not be described here again.

[0081] It can be understood that the projection of the NFC antenna 40 along the first direction (i.e., along the z direction) does not coincide with the projection of the camera 50, and the camera 50 can be arranged within the coverage range of the camera decoration member 30, and further, the camera 50 can be arranged within the coverage range of the first decoration member 310. That is, the electronic device includes the camera 50, and when the shell assembly is mounted on the electronic device, the projection of the NFC antenna 40 along the first direction does not coincide with the projection of the camera 50 along the first direction. When the NFC antenna 40 coincides with the projection of the second decoration member 320 and does not coincide with the projection of the camera 50, the NFC antenna 40 does not block the camera 50, thereby ensuring that the camera 50 can normally shoot.

[0082] It should be noted that the present application relates to a double-end scheme of NFC antenna design, that is, both ends of the NFC antenna 40 can be directly electrically connected to the mainboard of the electronic device through local punching, that is, directly fed to the mainboard of the electronic device. That is, the NFC antenna 40 has at least one feeding point, the projection of the at least one feeding point along the first direction is located within the projection area of the camera decoration member 30 along the first direction, and the at least one feeding point is electrically connected to the mainboard of the electronic device. Therefore, the NFC antenna design provided by the present application does not need to provide a mainboard support on the mainboard of the electronic device, thereby reducing the overall thickness and weight of the electronic device, and reducing the thickness of the electronic device.

[0083] Figure 5 is a schematic diagram of the NFC antenna design provided by the present application.

[0084] Figure 5 Exemplarily shows four feasible NFC antenna design methods, it should be understood that, Figure 5 only for exemplary illustration, should not have any limitation on the NFC antenna design of the present application. As Figure 5 shown, exemplarily, the NFC antenna can be arranged within the coverage range of the first decoration member 310, that is, the projection of the NFC antenna along the first direction is within the projection of the first decoration member 310 along the first direction. That is, the projection area of the NFC antenna on the xy plane is less than or equal to the projection area of the first decoration member 310 on the xy plane, and the projection area of the NFC antenna on the xy plane is also less than or equal to the projection area of the second decoration member 320 on the xy plane. The NFC antenna does not need to bypass the second decoration member 320, that is, the NFC antenna does not occupy the space outside the second decoration member 320, thereby not being affected by the size of the second decoration member 320.

[0085] Figure 5 (a) of FIG. 1 shows that the NFC antenna 41 bypasses four cameras and designs the NFC antenna trace from the periphery of the camera; Figure 5(b) shows that the NFC antenna 42 bypasses one camera and the NFC antenna is designed around one camera; Figure 5 (c) shows that the NFC antenna 43 bypasses two cameras and the NFC antenna is designed around two cameras; Figure 5 (d) shows that the NFC antenna 44 bypasses three cameras and the NFC antenna is designed around three cameras. In the embodiments of the present application, when the NFC antenna needs to be designed, the antenna wiring can be arranged according to Figure 4 The four NFC antenna design methods shown in the figure set the antenna wiring.

[0086] It can be understood that, in the Figure 4 The shell assembly shown in the figure involves the NFC antenna design method shown in (a), Figure 5 The NFC antenna design method shown in (b), and Figure 5 The NFC antenna design method shown in (d). Figure 5

[0087] It should be understood that the embodiments of the present application do not limit the shape of the camera decoration piece 30, the number of cameras 50, the arrangement of the cameras 50, the height of the cameras 50, and the wiring of the NFC antenna 40.

[0088] It should also be understood that, since the embodiments of the present application involve a double-end scheme of NFC antenna design, that is, both ends of the NFC antenna 40 can be directly connected to the main board of the electronic device by local punching. Therefore, when the opening of the NFC antenna is arranged, the NFC antenna should avoid the camera 50 and the related camera module opening, and at the same time, the NFC antenna wiring width and the NFC antenna shape can also be adjusted according to the number and size of the opening.

[0089] Figure 6 And Figure 7 is another shell assembly structure diagram provided by the embodiments of the present application. Figure 6 And Figure 7 It is shown that the camera decoration piece 30 is designed as a 3D non-planar structure. When the internal structure of the camera decoration piece 30 is non-planar, for example, there are two or more planes inside the camera decoration piece 30, the corresponding NFC antenna 40 cannot be kept on the same plane, and the NFC antenna 40 also needs to be designed as a non-planar structure. Among them, Figure 6 Or Figure 7 The specific setting position of the corresponding NFC antenna 40 can refer to Figure 12 , Figure 12 Also shows the cross-sectional structure diagram of the camera decoration piece in Figure 6 Or Figure 7 .

[0090] As Figure 6 Or​Figure 7 The shell assembly shown can include a back cover 20, a camera decoration 30 and an NFC antenna 40, both of which are mounted to the back cover 20, and the NFC antenna 40 is attached to the camera decoration 30. Wherein the projection of the NFC antenna 40 along the first direction is within the projection of the camera decoration 30 along the first direction, the first direction being the thickness direction of the electronic device.

[0091] Optionally, the camera decoration 30 can be a non-metallic appearance piece. In this case, the NFC antenna 40 can be arranged between the non-metallic appearance piece and the back cover 20, and the NFC antenna 40 can be attached to the non-metallic appearance piece. That is, the projection of the NFC antenna 40 along the first direction is within the projection of the non-metallic appearance piece along the first direction.

[0092] Optionally, the camera decoration 30 can include a first decoration 310 and a second decoration 320, the first decoration 310 being arranged on the side of the second decoration 320 away from the back cover 20, and the projection of the first decoration 310 along the first direction is within the projection of the second decoration 320 along the first direction, and the projection of the NFC antenna 40 along the first direction is within the projection of the first decoration 310 along the first direction.

[0093] In one possible implementation, the first decoration 310, the NFC antenna 40, and the second decoration 320 are arranged in a stack along the first direction, and the NFC antenna 40 is arranged between the first decoration 310 and the second decoration 320, for realizing the NFC communication function of the electronic device. It should be understood that the NFC antenna 40 can be designed to be hidden between the first decoration 310 and the second decoration 320 by plating or coating.

[0094] Optionally, the NFC antenna 40 can be attached to the side of the first decoration 310 close to the back cover 20.

[0095] Optionally, the NFC antenna 40 can also be attached to the side of the second decoration 320 away from the back cover 20.

[0096] In another possible implementation, when the second decoration 320 is locally injection molded, the NFC antenna 40 can be designed below or above the injection molded structure. That is, the second decoration 320 includes a metal part and a non-metallic part, the first decoration 310, the second decoration 320, and the NFC antenna 40 are arranged in a stack along the first direction, and the second decoration 320 is between the first decoration 310 and the NFC antenna 40.

[0097] Optionally, the NFC antenna 40 can be attached to the side of the non-metallic part of the second decoration 320 away from the back cover 20.

[0098] Optionally, the NFC antenna 40 can also be attached to the non-metallic part of the second decorative member 320 close to the side of the back cover 20.

[0099] It can be understood that the first decorative member 310 can be made of non-metallic material, and the second decorative member 320 can be made of metallic material. The non-metallic part of the second decorative member 320 is obtained by an injection molding process.

[0100] It should be understood that the NFC antenna 40 can be made of a flexible printed circuit (FPC) combined with a ferrite. That is, the NFC antenna 40 can include a flexible circuit board FPC antenna and a ferrite, and the ferrite is used to isolate the FPC antenna from the second decorative member 320, that is, the ferrite can reduce the influence of the metal decorative member on the FPC antenna, and the ferrite can be disposed on the side of the FPC antenna close to the back cover 20.

[0101] In some embodiments, the shell assembly further includes a magnetic isolation sheet for isolating the magnetic property of the ferrite. The magnetic isolation sheet can be laid in the interference area of the camera 50 to reduce the influence of the magnetic property of the ferrite on the camera 50. The position of the magnetic isolation sheet can be referred to in Figure 3 or Figure 4 .

[0102] It should be understood that the NFC antenna 40 can be subjected to a waterproof and dustproof edge processing process in the embodiments of the present application, that is, the NFC antenna 40 is obtained by a waterproof and dustproof process. Optionally, the ferrite can be subjected to a polyester (PET) waterproof edge processing process, and the FPC can be subjected to a single waterproof process, so that the NFC antenna 40 is located outside the waterproof ring of the second decorative member 320. That is, the FPC antenna and the ferrite are respectively obtained by a waterproof and dustproof process, wherein the FPC antenna is obtained by a single waterproof process, and the ferrite is obtained by a polyester (PET) film waterproof edge processing process.

[0103] It can be understood that along the first direction (i.e., along the z direction), the projection of the NFC antenna 40 does not coincide with the projection of the camera 50. That is, the electronic device includes a camera, and when the shell assembly is mounted on the electronic device, the projection of the NFC antenna 40 along the first direction does not coincide with the projection of the camera 50 along the first direction. When the projection of the NFC antenna 40 coincides with the projection of the second decorative member 320 and does not coincide with the projection of the camera 50, the NFC antenna 40 will not block the camera 50, thereby ensuring that the camera 50 can normally shoot.

[0104] It should be noted that the embodiment of the present application relates to a double-end scheme of NFC antenna design, that is, both ends of the NFC antenna 40 can be directly electrically connected with the mainboard of the electronic device through local punching, that is, directly fed to the mainboard of the electronic device. That is, the NFC antenna 40 has at least one feeding point, the projection of the at least one feeding point along the first direction is located inside the projection area of the camera decoration piece 30 along the first direction, and the at least one feeding point is electrically connected with the mainboard of the electronic device.

[0105] Since the NFC antenna 40 is originally produced as a planar NFC trace, it needs to be processed through a bending process to make the shape tolerance meet the assembly and flatness requirements of the second decoration piece. That is, when the camera decoration piece 30 is a non-planar structure, the NFC antenna 40 is a non-planar structure obtained through a bending process or a welding process to adapt to the camera decoration piece 30. As shown in Figure 6 The projection of the NFC antenna 40 completely coincides with the second decoration piece, that is, the 3D structure of the NFC antenna 40 after bending and fixing can match the shape of the second decoration piece, and then it can be fixed through waterproof adhesive and positioning holes.

[0106] When the shape of the second decoration piece 320 is irregular, the NFC antenna 40 cannot absorb the bending redundancy after the bending process, so welding is needed at the bending part. That is, when the camera decoration piece 30 is a non-planar structure, the NFC antenna 40 can be a non-planar structure obtained through a bending process and a welding process to adapt to the camera decoration piece 30. As shown in Figure 7 That is, at the welding point 410, the NFC antenna 40 is attached to the second decoration piece 320 with different shapes through a welding process and a solder pad design. It should be noted that when welding, the welding impedance and thickness need to be controlled to reduce the NFC antenna performance loss caused by impedance. Alternatively, when the welding impedance accounts for less than 50% of the total impedance of the NFC antenna, the NFC antenna performance loss is small.

[0107] The NFC antenna in the embodiment of the present application does not need to bypass the camera decoration piece, that is, the NFC antenna does not occupy the space outside the camera decoration piece, so it will not be affected by the size of the camera decoration piece. Since the NFC antenna is located on the inside of the camera decoration piece, the antenna has a good clear space environment and does not affect the performance of the NFC antenna and the performance of other antennas around it. In addition, it can also solve the problem of reading small card blind area under large size camera decoration piece, thereby increasing the user experience. In addition, there is no need to set a mainboard support on the mainboard of the electronic device, which can also reduce the overall thickness and weight of the electronic device, and the electronic device is thinned. At the same time, when the camera decoration piece is a non-planar structure, the NFC antenna can be attached to camera decoration pieces with various structures through a bending process and / or a welding process.

[0108] Figure 8 is a schematic view of an electronic device provided by an embodiment of the present application.

[0109] As shown in Figure 8 , the electronic device can include a camera 50 and Figure 3 , Figure 4 , Figure 6 and Figure 7 any one of the shell assemblies, and the camera decoration piece in the shell assembly can be used to decorate the camera. Specifically, the electronic device can include a mainboard 10, a back cover 20, a camera decoration piece 30, an NFC antenna 40, and a camera 50, and the mainboard 10 can be electrically connected with the NFC antenna 40.

[0110] Optionally, along the first direction (i.e., along the z direction), the projection of the NFC antenna 40 does not coincide with the projection of the camera 50. That is, the electronic device includes a camera, and when the shell assembly is installed on the electronic device, the projection of the NFC antenna 40 along the first direction does not coincide with the projection of the camera 50 along the first direction. When the projection of the NFC antenna 40 coincides with the projection of the second decoration piece 320 and does not coincide with the projection of the camera 50, the NFC antenna 40 will not block the camera 50, thereby ensuring that the camera 50 can normally shoot. At the same time, the camera 50 can be arranged within the coverage range of the camera decoration piece 30, and the camera 50 can also be arranged within the coverage range of the first decoration piece 310, and the camera decoration piece 30 and the first decoration piece 310 can protect the camera 50, avoiding the camera 50 from being contaminated.

[0111] Optionally, the camera 50 is provided with a camera lens (not shown in the figure), and the camera 50 corresponds to the camera lens and can shoot the external environment through the camera lens.

[0112] It should be understood that the mainboard 10 is provided with a circuit layer, and the NFC antenna 40 and the camera 50 are respectively electrically connected with the circuit layer on the mainboard 10.

[0113] It should be noted that the present application relates to a double-end scheme of the NFC antenna design, that is, both ends of the NFC antenna 40 can be directly electrically connected with the mainboard of the electronic device through local punching, that is, directly fed to the mainboard of the electronic device. That is, the NFC antenna 40 has at least one feeding point, the projection of the at least one feeding point along the first direction is located within the projection area of the camera decoration piece 30 along the first direction, and the at least one feeding point is electrically connected with the mainboard of the electronic device. Therefore, the NFC antenna design provided by the present application does not need to be provided with a mainboard support on the mainboard of the electronic device, thereby reducing the overall thickness and weight of the electronic device, and the electronic device is thinned.

[0114] It should also be understood that when the two ends of the NFC antenna 40 are partially punched through the second decoration 320, the punching position can be waterproofed and glued.

[0115] The electronic device provided by the embodiments of the present application does not need the NFC antenna to bypass the camera decoration, that is, the NFC antenna does not occupy the space outside the camera decoration, and thus is not affected by the size of the camera decoration. Moreover, since the NFC antenna is located inside the camera decoration, the antenna has a good clearance environment, and thus does not affect the performance of the NFC antenna and the performance of other antennas in the periphery. In addition, the problem of a read-small-card blind area under a large-size camera decoration can be solved, and the user experience can be improved. In addition, the NFC antenna can be directly fed with power by the mainboard of the electronic device, and thus the mainboard support does not need to be arranged on the mainboard of the electronic device, and the overall thickness and weight of the electronic device can be reduced, and the electronic device can be thinned. At the same time, when the camera decoration is a non-planar structure, the NFC antenna can be attached to the camera decoration of various structures through a bending process and / or a welding process.

[0116] Figure 9 FIG. 1 is a schematic diagram of a cross section of an electronic device along an xz plane according to an embodiment of the present application.

[0117] As shown in FIG. 1, an electronic device can include a camera decoration 30, an NFC antenna 40, a back cover 20, and a mainboard 10. The camera decoration 30 and the NFC antenna 40 are both mounted on the back cover 20, and the NFC antenna 40 is attached to the camera decoration 30, that is, the NFC antenna 40 is attached to the side of the camera decoration 30 close to the back cover 20. The projection of the NFC antenna 40 along a first direction is located within the projection range of the camera decoration 30 along the first direction, and the first direction is the thickness direction of the electronic device. Figure 9 Figure 9 Along the first direction (that is, in the direction from the back cover 20 to the mainboard 10), the first layer is the camera decoration 30, the second layer is the NFC antenna 40, the third layer is the back cover 20, and the fourth layer is the mainboard 10. That is, the NFC antenna 40 can be located between the camera decoration 30 and the back cover 20. Along the first direction, the projection area of the NFC antenna 40 coincides with the projection area of the camera decoration 30, that is, the projection area of the NFC antenna 40 along the xy plane is less than or equal to the projection area of the camera decoration 30 along the xy plane.

[0118] In addition, along the first direction, the projection of the NFC antenna 40 does not coincide with the projection of the camera, that is, the NFC antenna 40 can surround the camera, but will not block the camera, so as to ensure that the camera can work normally.

[0119] In addition, along the first direction, the projection of the NFC antenna 40 does not coincide with the projection of the camera, that is, the NFC antenna 40 can surround the camera, but will not block the camera, so as to ensure that the camera can work normally. ​

[0120] It should be understood that the motherboard 10 has a circuit layer, and the NFC antenna 40 and the camera are electrically connected to the circuit layer on the motherboard 10.

[0121] It should be noted that the embodiments of this application involve a dual-end scheme for NFC antenna design, meaning that both ends of the NFC antenna 40 can be electrically connected to the motherboard of the electronic device through partial perforations, i.e., directly feeding power to the motherboard of the electronic device. In other words, the NFC antenna 40 has at least one feeding point, the projection of which along the first direction is located inside the projection area of ​​the camera decorative piece 30 along the first direction, and this at least one feeding point is electrically connected to the motherboard of the electronic device. Therefore, the NFC antenna design provided in this application embodiment eliminates the need for a motherboard bracket on the motherboard of the electronic device, thereby reducing the overall thickness and weight of the electronic device and contributing to its thinning effect.

[0122] It should also be understood that when the two ends of the NFC antenna 40 are connected to the motherboard 10 through partial holes drilled in the back cover 20, the hole locations can be treated with waterproof sealant.

[0123] Figure 10 This is a cross-sectional schematic diagram of an electronic device along the xz plane provided in an embodiment of this application.

[0124] like Figure 10 As shown, Figure 10 The diagram shows a cross-sectional view of an electronic device along the z-direction. The electronic device may include a first decorative element 310, an NFC antenna 40, a second decorative element 320, a back cover 20, and a motherboard 10. The projection of the first decorative element 310 along the first direction lies within the range of the projection of the second decorative element 320 along the first direction, and the projection of the NFC antenna 40 along the first direction also lies within the range of the projection of the first decorative element 310 along the first direction. That is, the projected area of ​​the NFC antenna 40 along the xy-plane is less than or equal to the projected area of ​​the first decorative element 310 along the xy-plane, and the projected area of ​​the NFC antenna 40 along the xy-plane is also less than or equal to the projected area of ​​the second decorative element 320 along the xy-plane.

[0125] The first decorative element 310, the NFC antenna 40, and the second decorative element 320 are stacked along a first direction. The NFC antenna 40 is located between the first decorative element 310 and the second decorative element 320, that is, the NFC antenna 40 is attached to the side of the second decorative element 320 away from the back cover 20. Specifically, along the first direction (that is, along the direction from the back cover 20 towards the motherboard 10), the first layer is the first decorative element 310, the second layer is the NFC antenna 40, the third layer is the second decorative element 320, the fourth layer is the back cover 20, and the fifth layer is the motherboard 10.

[0126] Furthermore, along the first direction, the projection of the NFC antenna 40 does not coincide with the projection of the camera, meaning that the NFC antenna 40 can surround the camera without obstructing it, thus ensuring that the camera can work normally.

[0127] In one possible implementation, the second decorative element 320 is embedded in the back cover 20, that is, the second decorative element 320 and the back cover 20 are located on the same horizontal plane.

[0128] It should be understood that the motherboard 10 has a circuit layer, and the NFC antenna 40 and the camera are electrically connected to the circuit layer on the motherboard 10.

[0129] It should be noted that the embodiments of this application involve a dual-end scheme for NFC antenna design, meaning that both ends of the NFC antenna 40 can be electrically connected to the motherboard of the electronic device through partial perforations, i.e., directly feeding power to the motherboard of the electronic device. In other words, the NFC antenna 40 has at least one feeding point, the projection of which along the first direction is located inside the projection area of ​​the camera decorative piece 30 along the first direction, and this at least one feeding point is electrically connected to the motherboard of the electronic device. Therefore, the NFC antenna design provided in this application embodiment eliminates the need for a motherboard bracket on the motherboard of the electronic device, thereby reducing the overall thickness and weight of the electronic device and contributing to its thinning effect.

[0130] It should also be understood that when the two ends of the NFC antenna 40 are partially drilled into the motherboard 10 through the second decorative piece 320 and the back cover 20, the drilling positions can be treated with waterproof glue.

[0131] Figure 11 This is a cross-sectional schematic diagram along the xz plane of another electronic device provided in an embodiment of this application.

[0132] like Figure 11 As shown, Figure 11 The diagram shows a cross-sectional view of another electronic device along the z-direction. The electronic device may include a first decorative element 310, a second decorative element 320, an NFC antenna 40, a back cover 20, and a motherboard 10. The projection of the first decorative element 310 along the first direction lies within the range of the projection of the second decorative element 320 along the first direction, and the projection of the NFC antenna 40 along the first direction also lies within the range of the projection of the first decorative element 310 along the first direction. That is, the projected area of ​​the NFC antenna 40 along the xy-plane is less than or equal to the projected area of ​​the first decorative element 310 along the xy-plane, and the projected area of ​​the NFC antenna 40 along the xy-plane is also less than or equal to the projected area of ​​the second decorative element 320 along the xy-plane.

[0133] When the second decorative element 320 is partially injection molded, the second decorative element 320 may include metal and non-metal parts. The first decorative element 310, the second decorative element 320, and the NFC antenna 40 are stacked along a first direction. The NFC antenna 40 may be located between the second decorative element 320 and the back cover 20, that is, the NFC antenna 40 is attached to the non-metallic part of the second decorative element near the back cover 20. Specifically, along the first direction (that is, along the direction from the back cover 20 toward the motherboard 10), the first layer is the first decorative element 310, the second layer is the second decorative element 320, the third layer is the NFC antenna 40, the fourth layer is the back cover 20, and the fifth layer is the motherboard 10.

[0134] Furthermore, along the first direction, the projection of the NFC antenna 40 does not coincide with the projection of the camera, meaning that the NFC antenna 40 can surround the camera without obstructing it, thus ensuring that the camera can work normally.

[0135] In one possible implementation, the second decorative element 320 is embedded in the back cover 20, that is, the second decorative element 320 and the back cover 20 are located on the same horizontal plane.

[0136] It should be understood that the motherboard 10 has a circuit layer, and the NFC antenna 40 and the camera are electrically connected to the circuit layer on the motherboard 10.

[0137] It should be noted that the embodiments of this application involve a dual-end scheme for NFC antenna design, meaning that both ends of the NFC antenna 40 can be electrically connected to the motherboard of the electronic device through partial perforations, i.e., directly feeding power to the motherboard of the electronic device. In other words, the NFC antenna 40 has at least one feeding point, the projection of which along the first direction is located inside the projection area of ​​the camera decorative piece 30 along the first direction, and this at least one feeding point is electrically connected to the motherboard of the electronic device. Therefore, the NFC antenna design provided in this application embodiment eliminates the need for a motherboard bracket on the motherboard of the electronic device, thereby reducing the overall thickness and weight of the electronic device and contributing to its thinning effect.

[0138] It should also be understood that when the two ends of the NFC antenna 40 are connected to the motherboard 10 through partial holes drilled in the back cover 20, the hole locations can be treated with waterproof sealant.

[0139] Figure 12 This is a cross-sectional schematic diagram along the xz plane of another electronic device provided in an embodiment of this application.

[0140] like Figure 12 As shown, Figure 12Fig. 6 shows a schematic view of another electronic device in a cross-sectional view along the z direction. The electronic device can include a first decoration 310, a second decoration 320, an NFC antenna 40, a back cover 20, and a main board 10. The first decoration 310 is located within the projection of the second decoration 320 along the first direction, and the projection of the NFC antenna 40 along the first direction is located within the projection of the first decoration 310 along the first direction. That is, the projection area of the NFC antenna 40 along the xy plane is less than or equal to the projection area of the first decoration 310 along the xy plane, and the projection area of the NFC antenna 40 along the xy plane is also less than or equal to the projection area of the second decoration 320 along the xy plane.

[0141] Optionally, the first decoration 310, the NFC antenna 40, and the second decoration 320 are stacked along the first direction, and the NFC antenna 40 is located between the first decoration 310 and the second decoration 320, that is, the NFC antenna 40 is attached to the side of the second decoration 320 away from the back cover 20. Specifically, along the first direction (i.e., in the direction of the back cover 20 towards the main board 10), the first layer is the first decoration 310, the second layer is the NFC antenna 40, the third layer is the second decoration 320, the fourth layer is the back cover 20, and the fifth layer is the main board 10.

[0142] Optionally, when the second decoration 320 is locally injection molded, the second decoration 320 includes a metal portion and a non-metal portion, and the first decoration 310, the second decoration 320, and the NFC antenna 40 are stacked along the first direction. The NFC antenna 40 can be located between the second decoration 320 and the back cover 20, that is, the NFC antenna 40 is attached to the side of the non-metal portion of the second decoration 320 close to the back cover 20. Specifically, along the first direction (i.e., in the direction of the back cover 20 towards the main board 10), the first layer is the first decoration 310, the second layer is the second decoration 320, the third layer is the NFC antenna 40, the fourth layer is the back cover 20, and the fifth layer is the main board 10.

[0143] In addition, along the first direction, the projection of the NFC antenna 40 does not coincide with the projection of the camera, that is, the NFC antenna 40 can surround the camera, but will not block the camera, thereby ensuring that the camera can work normally.

[0144] In one possible implementation, the second decoration 320 is embedded on the back cover 20, that is, the second decoration 320 and the back cover 20 are located on the same horizontal plane.

[0145] It should be understood that the main board 10 is provided with a circuit layer, and the NFC antenna 40 and the camera are electrically connected to the circuit layer on the main board 10.

[0146] It should be noted that the embodiments of the present application relate to a double-ended scheme of NFC antenna design, that is, both ends of the NFC antenna 40 can be directly electrically connected with the mainboard of the electronic device through local punching, that is, directly fed to the mainboard of the electronic device. That is, the NFC antenna 40 has at least one feeding point, the projection of the at least one feeding point along the first direction is located inside the projection area of the camera decoration 30 along the first direction, and the at least one feeding point is electrically connected with the mainboard of the electronic device. Therefore, the NFC antenna design provided by the embodiments of the present application does not need to be provided with a mainboard support on the mainboard of the electronic device, thereby reducing the overall thickness and weight of the electronic device, and the thinning of the electronic device is achieved.

[0147] It should also be understood that when both ends of the NFC antenna 40 can be punched to the mainboard 10, the punching position can be waterproofed and glued.

[0148] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A housing assembly, characterized by, The shell assembly comprises: a back cover; a camera decoration piece mounted on the back cover; a near field communication (NFC) antenna attached to the camera decoration piece; wherein a projection of the NFC antenna along a first direction is within a projection of the camera decoration piece along the first direction, the first direction being a thickness direction of the shell assembly; the camera decoration piece comprises a first decoration piece and a second decoration piece, the first decoration piece being arranged on a side of the second decoration piece away from the back cover, and the first decoration piece, the NFC antenna and the second decoration piece are arranged in a stack along the first direction, the NFC antenna being located between the first decoration piece and the second decoration piece, wherein the first decoration piece is made of a non-metal material, the second decoration piece comprises a metal part, and at least part of the NFC antenna is located between the first decoration piece and the metal part, the NFC antenna comprises a ferrite and a flexible printed circuit (FPC) antenna, and at least part of the ferrite is located between the FPC antenna and the metal part.

2. The housing assembly of claim 1, wherein, The projection of the first decoration piece along the first direction is within the projection of the second decoration piece along the first direction.

3. The housing assembly of claim 1, wherein, The projection of the NFC antenna along the first direction is within the projection of the first decoration piece along the first direction.

4. The housing assembly of claim 1, wherein, Along the first direction, the projection area of the NFC antenna is inside the projection area of the first decoration piece, and the projection area of the NFC antenna is also inside the projection area of the second decoration piece.

5. The housing assembly of claim 1, wherein, The NFC antenna is attached to a side of the first decoration piece close to the back cover, or the NFC antenna is attached to a side of the second decoration piece away from the back cover.

6. The housing assembly of claim 1, wherein, The second decoration piece further comprises a non-metal part, and the NFC antenna is attached to a side of the non-metal part away from the back cover.

7. The housing assembly of claim 6, wherein, The non-metal part is obtained by an injection molding process.

8. The housing assembly of claim 1, wherein, The NFC antenna comprises at least one feeding point, and a projection of the at least one feeding point along the first direction is inside the projection area of the camera decoration piece along the first direction.

9. The housing assembly of claim 8, wherein, The at least one feeding point is electrically connected to a mainboard of an electronic device.

10. The housing assembly of claim 1, wherein, The camera decoration piece is a non-planar structure, and the NFC antenna is a non-planar structure obtained by a bending process and / or a welding process to adapt to the camera decoration piece.

11. The housing assembly of claim 1, wherein, The NFC antenna is obtained by a waterproof and dustproof process.

12. The housing assembly of claim 1, wherein, The ferrite is arranged on a side of the FPC antenna close to the back cover.

13. The housing assembly of claim 1, wherein, The shell assembly further comprises a magnetic isolation sheet for isolating the magnetism of the ferrite.

14. The housing assembly of claim 1, wherein, The FPC antenna and the ferrite are respectively obtained by a waterproof and dustproof process, wherein the FPC antenna is obtained by a separate waterproof process, and the ferrite is obtained by a polyethylene terephthalate (PET) film waterproof binding process.

15. An electronic device, comprising: It comprises: a camera and a shell assembly as claimed in any one of claims 1 to 14, the camera decoration piece of the shell assembly being used to decorate the camera.

16. The electronic device of claim 15, wherein, The electronic device also includes a mainboard that is electrically connected with the NFC antenna of the shell assembly.

17. The electronic device of claim 15, wherein, A projection of the NFC antenna along a first direction does not coincide with a projection of the camera along the first direction, the first direction being a thickness direction of the electronic device.

18. The electronic device of claim 15, wherein, The camera includes one or more cameras, and the NFC antenna includes NFC antenna traces arranged around the one or more cameras, wherein a first portion of the NFC antenna traces surrounds a greater number of cameras than a second portion of the NFC antenna traces.

Images