Electronic device

Abstract

The embodiment of the utility model relates to the technical field of electronic equipment, in particular to electronic equipment. The embodiment of the utility model aims to solve the problem that the communication quality of an antenna is influenced by electromagnetic noise generated by internal devices of electronic equipment. According to the electronic device, the display panel, the frame and the rear cover define the containing cavity, the antenna is arranged on the frame, the auxiliary device and the circuit board are arranged in the containing cavity, the auxiliary device is located between the antenna and the circuit board and comprises the conductive shell, and the first conductive part is arranged between the conductive shell and the display panel. The first conductive part is connected with the conductive shell and a grounding layer of the display panel, the second conductive part is arranged between the conductive shell and the rear cover and connected with the conductive shell and the rear cover, and the first conductive part, the conductive shell and the second conductive part are electrically connected with one another and grounded so that electromagnetic noise generated by the circuit board can be prevented from being transmitted to the antenna. And the communication quality of the antenna is prevented from being influenced by electromagnetic noise.

Description

Technical Field

[0001] This application relates to the field of electronic device technology, specifically to an electronic device. Background Technology

[0002] Electronic devices such as mobile phones and tablets all include antennas, which are used to receive and transmit radio frequency signals for communication. However, electromagnetic noise generated by internal components of electronic devices can affect the communication quality of the antenna. Utility Model Content

[0003] This application provides an electronic device that helps avoid electromagnetic noise generated by internal components affecting the communication quality of the antenna.

[0004] This application provides an electronic device, including: a display panel, a frame, a back cover, an antenna, an auxiliary device, a circuit board, a first conductive element, and a second conductive element. The display panel, frame, and back cover are connected, with the display panel and back cover respectively located on opposite sides of the frame. The display panel, frame, and back cover form a cavity. The antenna is located on the frame. The auxiliary device and circuit board are located within the cavity and between the antenna and the circuit board. The auxiliary device has a conductive housing. The first conductive element is located between the conductive housing and the display panel and connected to the ground plane of the conductive housing and the display panel. The second conductive element is located between the conductive housing and the back cover and connected to both the conductive housing and the back cover.

[0005] With the above configuration, the grounding layer, the first conductive element, the conductive outer shell, the second conductive element, and the back cover of the display panel are all electrically connected, and the first conductive element, the conductive outer shell, and the second conductive element are grounded. When electromagnetic noise passes through the first conductive element, the conductive outer shell, and the second conductive element, at least part of the electromagnetic noise is converted into induced current in the first conductive element, the conductive outer shell, and the second conductive element, and flows into the ground under the guidance of the first conductive element, the conductive outer shell, and the second conductive element, thereby weakening the electromagnetic noise. Since the auxiliary equipment is located between the antenna and the circuit board, the first conductive element, the conductive outer shell, and the second conductive element can prevent at least part of the electromagnetic noise generated by the circuit board from being transmitted to the antenna, which helps to avoid the electromagnetic noise generated by the internal components of the electronic device from affecting the communication quality of the antenna.

[0006] In some embodiments that may include the above-described examples, the auxiliary device further includes an insulating housing, with a conductive housing disposed on the surface of the insulating housing. This conductive housing, through the above arrangement, can improve the strength of the auxiliary device, helping to prevent damage due to impacts, compression, or other reasons.

[0007] In some embodiments that may include the above embodiments, the conductive housing includes a first housing, a second housing, and a connecting portion. The first housing is disposed on the side of the auxiliary device near the display panel and is connected to a first conductive element. The second housing is disposed on the side of the auxiliary device near the rear cover and is connected to a second conductive element. The connecting portion connects the first housing and the second housing.

[0008] The above arrangement facilitates the connection between the conductive housing and the first and second conductive components. Furthermore, the first and second housings are respectively located on both sides of the auxiliary equipment, which improves the strength of the auxiliary equipment and helps prevent damage due to impacts, compression, or other reasons.

[0009] In some embodiments that may include the above-described examples, the conductive housing includes at least one of a steel housing, an aluminum housing, or a copper housing. With the above configuration, the conductive housing has a certain degree of conductivity and can electrically connect the first conductive element and the second conductive element.

[0010] In some embodiments that may include the above-described examples, the conductive housing is provided with at least one of a nickel plating layer or a tin plating layer. This configuration reduces the conduction impedance of the conductive housing, improves the effectiveness of the first conductive element, the conductive housing, and the second conductive element in preventing electromagnetic noise from being transmitted to the antenna, and helps to avoid electromagnetic noise generated by internal components of the electronic device affecting the communication quality of the antenna.

[0011] In some embodiments that may include the above-described examples, both the first conductive element and the second conductive element are disposed near the connection between the display panel and the bezel. This arrangement helps to prevent electromagnetic noise propagating along the gap between the display panel and the bezel from being transmitted to the antenna.

[0012] In some embodiments that may include the above embodiments, the frame includes a first side edge, and a top edge and a bottom edge disposed opposite to each other. The first side edge connects the top edge and the bottom edge. The antenna is disposed on the first side edge. The circuit board is disposed near the bottom edge. There are multiple first conductive elements, and each first conductive element is disposed at intervals along a direction parallel to the first side edge.

[0013] The above configuration helps to prevent electromagnetic noise propagating along the gap between the display panel and the first side edge from being transmitted to the antenna.

[0014] In some embodiments that may include the above-described embodiments, the projections of the first conductive element and the second conductive element are both located within the projection range of the auxiliary device in a plane parallel to the rear cover.

[0015] With the above configuration, in a plane parallel to the back cover, the first and second conductive components do not occupy the space of circuit boards, batteries, audio components, and other devices, making the internal structure of the electronic device compact and facilitating the miniaturization of the electronic device.

[0016] In some embodiments that may include the above-described examples, the length of the first conductive element and / or the length of the second conductive element in the direction parallel to the rear cover is not less than 4 mm. With this configuration, the auxiliary device can be securely clamped between the first and second conductive elements.

[0017] In some embodiments that may include the above-described examples, the first conductive element and the second conductive element are conductive foam. With this configuration, the first and second conductive elements are soft and elastic. The first conductive element elastically abuts against the display panel, and can undergo elastic deformation to reduce pressure on the display panel. The second conductive element elastically abuts against the back cover, and can also undergo elastic deformation to reduce pressure on the back cover. Simultaneously, the first and second conductive elements have minimal impact on the thickness of the electronic device, and may even not increase the thickness, which is beneficial for miniaturization and thinning of the electronic device. Furthermore, in embodiments where both the first and second conductive elements are conductive foam, the overall structure of the first conductive element, the second conductive element, and the conductive shell is simple, which is conducive to mass production of the electronic device.

[0018] In some embodiments that may include the above embodiments, the auxiliary device includes a device body and an abutment. The abutment is disposed on the rear cover, and at least part of the abutment is spaced apart from the rear cover. The device body is disposed between the abutment and the rear cover. The abutment is used to abut the device body against the rear cover, and a conductive outer shell is disposed on the abutment.

[0019] With the above-mentioned design, the abutment helps to prevent the main body of the equipment from becoming loose, and ensures that the main body of the equipment is installed more securely in the accommodating cavity. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the electronic device in the first embodiment;

[0021] Figure 2 This is a schematic diagram of the electronic device in the second embodiment;

[0022] Figure 3 This is an exploded view of an auxiliary device in one embodiment;

[0023] Figure 4 This is a schematic diagram of the auxiliary device in one embodiment;

[0024] Figure 5 for Figure 4 A structural schematic diagram of the auxiliary equipment shown from another angle;

[0025] Figure 6 for Figure 2 Sectional view along the middle AA direction;

[0026] Figure 7This is a schematic diagram of the electronic device in the third embodiment;

[0027] Figure 8 This is a schematic diagram of the structure of the first conductive element in one embodiment;

[0028] Figure 9 This is a schematic diagram of a rectangular waveguide in one embodiment;

[0029] Figure 10 This is a schematic diagram of the rectangular waveguide in another embodiment;

[0030] Figure 11 This is a schematic diagram of a traveling wave in one embodiment;

[0031] Figure 12 This is a schematic diagram of the structure of the rear cover and the second circuit board in one embodiment;

[0032] Figure 13 This is a schematic diagram of the electronic device in the fourth embodiment;

[0033] Figure 14 This is a schematic diagram of the structure of the back cover, frame, support plate, controller, and second circuit board in one embodiment;

[0034] Figure 15 This is a schematic diagram of the electronic device in the fifth embodiment;

[0035] Figure 16 A broken line representing the relationship between frequency and the isolation between the antenna and electromagnetic noise sources. Figure 1 ;

[0036] Figure 17 for Figure 2 Sectional view along the BB direction;

[0037] Figure 18 A broken line representing the relationship between frequency and the isolation between the antenna and electromagnetic noise sources. Figure 2 .

[0038] Explanation of reference numerals in the attached figures:

[0039] 10: Electronic device; 100: Back cover; 110: Frame; 111: First side; 112: Second side; 113: Top edge; 114: Bottom edge; 120: Receiving cavity; 200: Display panel; 210: Display cover; 220: Panel; 230: Support plate; 300: Circuit board; 310: Controller; 320: First circuit board; 330: Second circuit board; 340: Flexible circuit board; 400: Battery; 500: Audio component; 510: 520: First audio component; 530: Second audio component; 540: Third audio component; 540: Fourth audio component; 600: Camera module; 700: Antenna; 800: Auxiliary equipment; 810: Conductive housing; 811: First housing; 812: Second housing; 813: Connecting part; 820: Insulating housing; 830: Abutment; 910: First conductive component; 911: Conductive adhesive; 912: Cavity; 913: Metal plating; 920: Second conductive component;

[0040] 20: Rectangular waveguide; 30: Slot. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all possible embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] This application provides an electronic device, which may include at least one of mobile phones, tablets, laptops, in-vehicle devices, virtual reality devices, and augmented reality devices. This application does not limit the type of electronic device.

[0043] Please refer to Figure 1 The electronic device 10 includes an interconnected frame 110 and a back cover 100, with the frame 110 located at the edge of the back cover 100. In some implementations, the frame 110 and the back cover 100 may be a single-piece structure. The materials used to make the frame 110 and the back cover 100 may include at least one of the following metal materials: aluminum alloy, stainless steel, or titanium alloy.

[0044] The frame 110 includes a first side 111, a top edge 113, a second side 112, and a bottom edge 114 connected sequentially end to end. The first side 111 connects one end of the top edge 113 and one end of the bottom edge 114, and the second side 112 connects the other end of the top edge 113 and the other end of the bottom edge 114. The top edge 113 and the bottom edge 114 are positioned opposite each other, with the length directions of both sides parallel to a first direction x, which can be the length direction of the electronic device 10. The first side 111 and the second side 112 are positioned opposite each other, with the length directions of both sides parallel to a second direction y, which can be the width direction of the electronic device 10 and is perpendicular to the first direction x.

[0045] Please refer to Figure 1 The electronic device 10 also includes a display panel 200, which is disposed on a bezel 110. The bezel 110 is located between the display panel 200 and the back cover 100, and the display panel 200, bezel 110, and back cover 100 form a receiving cavity 120. The display panel 200 includes a cover glass 210 (CG), a panel 220, and a support plate 230, which are sequentially stacked. The support plate 230 is disposed on the bezel 110, and the material of the support plate 230 may include at least one of stainless steel or titanium alloy, etc. The support plate 230 serves as a ground layer for the display panel 200. The panel 220 is stacked on the support plate 230, and the panel 220 may include at least one of a backlight, a polarizer, a conductive layer, or a filter. The cover glass 210 is stacked on the panel 220.

[0046] Please refer to Figure 2 The electronic device 10 also includes a circuit board 300 and a controller 310, both of which are disposed within the accommodating cavity 120. The circuit board 300 may be disposed on the rear cover 100, and the display panel 200 (e.g.) Figure 1 The circuit board 310 (shown) can be electrically connected to both the circuit board 300 and the controller 310. The controller 310 can be disposed on and electrically connected to the circuit board 300, or the controller 310 can be electrically connected to the circuit board 300 via a flexible circuit board 340. The circuit board 300 may include at least one of a motherboard or a display driver board; the controller 310 may include at least one of a central processing unit (CPU), a system-on-chip (SOC), or a display driver integrated circuit (DDIC). In some implementations, the circuit board 300 may have a timing controller (TCON).

[0047] In one optional embodiment, the circuit board 300 may include a first circuit board 320 and a second circuit board 330. The first circuit board 320 may be a motherboard, and the second circuit board 330 may be a display driver board. The first circuit board 320 and the second circuit board 330 may be spaced apart along a second direction y. The first circuit board 320 may be located near the top edge 113, and the second circuit board 330 may be located near the bottom edge 114.

[0048] In the above embodiments, multiple controllers 310 may be provided. For example, four controllers 310 may be provided, each controller 310 can be a display driver chip, and each controller 310 can be electrically connected to the second circuit board 330 through the flexible circuit board 340.

[0049] Please continue to refer to Figure 2 The electronic device 10 is equipped with a battery 400, which is located in the accommodating cavity 120 and can be located between the first circuit board 320 and the second circuit board 330.

[0050] The electronic device 10 also includes an audio component 500, which is disposed within the accommodating cavity 120. The audio component 500 may include a sound cavity structure and a speaker disposed within the sound cavity structure. Correspondingly, at least one of the back cover 100 and the frame 110 may be provided with a sound outlet, and the audio component 500 may be disposed close to the sound outlet.

[0051] In some implementations, multiple audio components 500 may be provided. For example, the audio components 500 may include a first audio component 510, a second audio component 520, a third audio component 530, and a fourth audio component 540. The first audio component 510 and the second audio component 520 are located on the side of the battery 400 near the first side 111 and are spaced apart along the second direction y; the third audio component 530 and the fourth audio component 540 are located on the side of the battery 400 near the second side 112 and are spaced apart along the second direction y.

[0052] In one optional embodiment, the electronic device 10 may include a camera module 600, which is disposed within the accommodating cavity 120. The camera module 600 may serve as a front-facing camera or a rear-facing camera.

[0053] Electronic device 10 also includes antenna 700, which is electrically connected to controller 310 and can be used to receive and transmit radio frequency signals. Antenna 700 may include at least one of a cellular antenna, a Wireless Fidelity (Wi-Fi) antenna, or a Global Positioning System (GPS) antenna. Antenna 700 is disposed on frame 110; exemplaryly, antenna 700 may be disposed on a first side 111. In some implementations, antenna 700 is mounted on frame 110; in other implementations, antenna 700 and frame 110 are an integral structure, and antenna 700 may include at least a portion of frame 110.

[0054] Please refer to Figure 3 , Figure 4 and Figure 5 The electronic device 10 also includes an auxiliary device 800, which includes a conductive housing 810. Here, "conductive housing" can be understood as a housing with a certain degree of conductivity. Please refer to... Figure 2 and Figure 3 The auxiliary device 800 is disposed within the accommodating cavity 120 and located between the antenna 700 and the circuit board 300. The auxiliary device 800 may include at least one of a device such as an audio component 500 or a battery 400. In one example, the auxiliary device 800 may be located between the antenna 700 and the second circuit board 330, and correspondingly, the auxiliary device 800 may include at least one of a first audio component 510 or a second audio component 520. In another example, the auxiliary device 800 may be disposed between the antenna 700 and the first circuit board 320. In some implementations, there may be multiple auxiliary devices 800; for example, there may be two auxiliary devices 800, which may include a first audio component 510 and a second audio component 520.

[0055] Please combine Figure 2 and Figure 6 The electronic device 10 also includes a first conductive element 910 and a second conductive element 920, both of which are connected to the conductive housing 810. The first conductive element 910 is disposed between the conductive housing 810 and the display panel 200, and is connected to the ground layer of the display panel 200. For example, the first conductive element 910 can be connected to the support plate 230. The second conductive element 920 is disposed between the conductive housing 810 and the back cover 100, and is connected to the back cover 100.

[0056] The electronic device 10 provided in this application embodiment has a frame 110 disposed between a display panel 200 and a back cover 100. The display panel 200, frame 110, and back cover 100 form a receiving cavity 120. An antenna 700 is disposed on the frame 110. An auxiliary device 800 and a circuit board 300 are disposed within the receiving cavity 120 and located between the antenna 700 and the circuit board 300. The auxiliary device 800 includes a conductive housing 810. A first conductive element 910 is disposed between the conductive housing 810 and the display panel 200 and is connected to the conductive housing 810 and the ground layer of the display panel 200. A second conductive element 920 is disposed between the conductive housing 810 and the back cover 100 and is connected to the conductive housing 810 and the back cover 100. The ground layer of the display panel 200, the first conductive element 910, and the conductive housing 810 are all connected together. The second conductive element 920 and the rear cover 100 are electrically connected, and the first conductive element 910, the conductive shell 810 and the second conductive element 920 are grounded. When electromagnetic noise passes through the first conductive element 910, the conductive shell 810 and the second conductive element 920, at least part of the electromagnetic noise is converted into induced current in the first conductive element 910, the conductive shell 810 and the second conductive element 920, and flows into the ground under the guidance of the first conductive element 910, the conductive shell 810 and the second conductive element 920, thereby weakening the electromagnetic noise. Since the auxiliary device 800 is located between the antenna 700 and the circuit board 300, the first conductive element 910, the conductive shell 810 and the second conductive element 920 can prevent at least part of the electromagnetic noise generated by the circuit board 300 from being transmitted to the antenna 700, which is beneficial to avoid the electromagnetic noise generated by the internal components of the electronic device 10 from affecting the communication quality of the antenna 700.

[0057] In the above embodiments, the conductive housing 810 may include at least one of a steel housing, an aluminum housing, or a copper housing. It can also be understood that the material used to make the conductive housing 810 may include at least one of steel, aluminum, or copper. With the above configuration, the conductive housing 810 has a certain degree of conductivity and can electrically connect the first conductive element 910 and the second conductive element 920.

[0058] In one optional embodiment, the conductive housing 810 is provided with at least one of a nickel plating layer or a tin plating layer. This configuration reduces the conduction impedance of the conductive housing 810, improves the effectiveness of the first conductive element 910, the conductive housing 810, and the second conductive element 920 in preventing electromagnetic noise from being transmitted to the antenna 700, and helps to avoid electromagnetic noise generated by internal components of the electronic device 10 affecting the communication quality of the antenna 700.

[0059] In an alternative embodiment, the conductive housing 810 may be the housing of the auxiliary device 800.

[0060] In another alternative embodiment, please refer to Figure 3The auxiliary device 800 also includes an insulating housing 820, which serves as the outer shell of the auxiliary device 800. A conductive housing 810 is disposed on the surface of the insulating housing 820. The material used to make the insulating housing 820 may include at least one of acrylonitrile butadiene styrene copolymer (ABS) or polycarbonate (PC). In some implementations, the conductive housing 810 may be embedded into the insulating housing 820 using a metal insert injection molding process, thereby forming an integral structure between the conductive housing 810 and the insulating housing 820. Through the above configuration, the conductive housing 810 can be used to improve the strength of the auxiliary device 800, which helps to prevent damage to the auxiliary device 800 due to impacts, compression, etc.

[0061] In one alternative embodiment, please combine Figure 3 and Figure 6 The conductive housing 810 includes a first housing 811, a second housing 812, and a connecting portion 813. The first housing 811 is located on the side of the auxiliary device 800 near the display panel 200 and is connected to the first conductive element 910. The second housing 812 is located on the side of the auxiliary device 800 near the rear cover 100 and is connected to the second conductive element 920. The connecting portion 813 connects the first housing 811 and the second housing 812. This arrangement facilitates the connection between the conductive housing and the first conductive element 910 and the second conductive element 920. In embodiments where the conductive housing is used to improve the strength of the auxiliary device 800, the first housing 811 and the second housing 812 are respectively located on both sides of the auxiliary device 800, which improves the strength of the auxiliary device 800 and helps prevent damage to the auxiliary device 800 due to impacts, compression, etc.

[0062] In the above embodiment, the auxiliary device 800 is mounted on the rear cover 100.

[0063] In some implementations, the auxiliary device 800 may not contact the rear cover 100. For example, please refer to... Figure 6 The first conductive element 910 abuts against the auxiliary device 800 downward along the third direction z, and the second conductive element 920 abuts against the auxiliary device 800 upward along the third direction z, so that the auxiliary device 800 is sandwiched between the first conductive element 910 and the second conductive element 920, so that the auxiliary device 800 is installed on the rear cover 100.

[0064] In some implementations, the auxiliary device 800 can contact the rear cover 100, and the auxiliary device 800 can be installed on the rear cover 100 by at least one of the following methods: adhesive, snap-fit, or bolt connection. In the above implementations, at least a portion of the auxiliary device 800 is spaced apart from the rear cover 100, so that the second conductive element 920 can be disposed between the auxiliary device 800 and the rear cover 100.

[0065] In one alternative embodiment, please refer to Figure 7 The auxiliary device 800 includes a device body and a connecting member 830. The device body may include at least one of the following: an audio component 500 or a battery 400. The device body is mounted on the rear cover 100. The mounting method of the device body can refer to the auxiliary device 800 described above (e.g., Figure 6 The installation method shown is not described in detail here. The abutment 830 is provided on the rear cover 100. The abutment 830 includes an abutment portion, which is spaced apart from the rear cover 100. At least a portion of the device body is located between the abutment portion and the rear cover 100, with the abutment portion abutting against the device body in a direction from the display panel 200 towards the rear cover 100. Thus, the abutment portion can be used to abut the device body against the rear cover 100; or, the abutment portion can also be used to abut the device body against the second conductive element 920. With the above arrangement, the abutment 830 helps to prevent the device body from loosening, ensuring that the device body is securely installed within the receiving cavity 120.

[0066] In an alternative embodiment, the conductive housing 810 may be disposed on the device body.

[0067] In another alternative embodiment, please combine Figure 3 and Figure 7 The conductive housing 810 can also be provided on the abutment 830.

[0068] In the above embodiments, please refer to Figure 6 and Figure 8 The first conductive element 910 and the second conductive element 920 can be bonded to the conductive housing 810, for example, by using conductive adhesive 911; or, the first conductive element 910 and the second conductive element 920 can be installed on the conductive housing 810 by snap-fitting, welding, or other methods. Thus, the first conductive element 910, the second conductive element 920, and the auxiliary device 800 can form an integrated structure, and the first conductive element 910 and the second conductive element 920 can be assembled together with the auxiliary device 800 into the electronic device 10 (e.g., ...). Figure 1 As shown in the figure, this is conducive to the mass production of electronic devices 10.

[0069] In some optional embodiments, the first conductive element 910 and the second conductive element 920 may include at least one of the following materials: conductive cloth, conductive tape, conductive plastic or metal.

[0070] In some alternative embodiments, both the first conductive element 910 and the second conductive element 920 can be conductive foam. Conductive foam can be made by wrapping conductive cloth around a fire-retardant sponge. Thus, the first conductive element 910 and the second conductive element 920 are soft and elastic. The first conductive element 910 elastically abuts against the display panel 200, and can undergo elastic deformation to reduce pressure on the display panel 200 and prevent deformation of the display panel 200; the second conductive element 920 elastically abuts against the back cover 100, and can undergo elastic deformation to reduce pressure on the back cover 100 and prevent deformation of the back cover 100. Simultaneously, the first conductive element 910 and the second conductive element 920 connect to the electronic device 10 (e.g., Figure 1 The thickness dimension (as shown) has little impact, and may even not increase the thickness dimension of the electronic device 10, which is beneficial for the miniaturization and thinning of the electronic device 10. For example, the dimensions of the first conductive element 910 and the second conductive element 920 in the third direction z can be in the range of 0.1 mm to 0.2 mm.

[0071] Furthermore, in embodiments where both the first conductive element 910 and the second conductive element 920 are conductive foam, the overall structure of the first conductive element 910, the second conductive element 920, and the conductive housing 810 is simple, which is beneficial for the mass production of the electronic device 10.

[0072] In the above embodiments, please refer to Figure 6 and Figure 8 A cavity 912 may be provided within the first conductive element 910 and the second conductive element 920. Thus, the first conductive element 910 can undergo elastic deformation to reduce the pressure on the display panel 200, and the second conductive element 920 can undergo elastic deformation to reduce the pressure on the back cover 100. For example, the pressure exerted by the first conductive element 910 on the display panel 200 may be less than 1N, and the pressure exerted by the second conductive element 920 on the back cover 100 may be less than 1N.

[0073] In an optional embodiment, at least one of a metal plating layer 913, such as a nickel plating layer or a tin plating layer, may be provided on the surfaces of the first conductive element 910 and the second conductive element 920. In some implementations, the nickel plating layer can be made using a polyimide (PI) nickel plating process, and the tin plating layer can be made using a polyimide tin plating process. Through the above arrangement, the conduction impedance of the first conductive element 910 and the second conductive element 920 is reduced, the cutoff frequency of the first conductive element 910, the conductive housing 810, and the second conductive element 920 is increased, and a wider band of electromagnetic noise can be prevented from reaching the antenna 700 (e.g., ...). Figure 2 As shown, this transmission helps to avoid the impact of electromagnetic noise on the communication quality of each frequency band of the antenna 700. In one example, the nickel plating and / or tin plating can reduce the on-resistance of the conductive housing 810 to one ohm or less.

[0074] In an alternative embodiment, please refer to Figure 2 and Figure 6 . In a plane parallel to the rear cover 100, or equivalently, in a plane perpendicular to the third direction z, the projections of the first conductive member 910 and the second conductive member 920 are both within the projection range of the auxiliary device 800. With the above arrangement, in the plane parallel to the rear cover 100, the first conductive member 910 and the second conductive member 920 do not occupy the space of components such as the circuit board 300, the battery 400, and the audio component 500, making the internal structure of the electronic device 10 compact and facilitating the miniaturization of the electronic device 10.

[0075] In some implementations, in a direction parallel to the rear cover 100, or equivalently, in a direction perpendicular to the third direction z, the length dimension of the first conductive member 910 and / or the length dimension of the second conductive member 920 is not less than 4 mm. With the above arrangement, the auxiliary device 800 and / or the device body can be clamped relatively firmly between the first conductive member 910 and the second conductive member 920.

[0076] In an alternative embodiment, please refer to Figure 2 and Figure 6 . Both the first conductive member 910 and the second conductive member 920 are disposed close to the connection between the display panel 200 and the frame 110. In an embodiment where the display panel 200 includes a support plate 230, both the first conductive member 910 and the second conductive member 920 can be disposed close to the connection between the support plate 230 and the frame 110. Exemplarily, the first conductive member 910 and the second conductive member 920 can be disposed close to the first side edge 111. Thereby, it is beneficial to prevent the electromagnetic noise propagating along the gap between the support plate 230 and the frame 110 from being transmitted to the antenna 700.

[0077] In the above embodiment, please refer to Figure 1 and Figure 9 . Based on the electromagnetic field theory, the rear shell, the frame 110, and the display panel 200 can be simplified and equivalent to a rectangular waveguide 20, and the rectangular waveguide 20 can be equivalent to a high-pass filter. Here, a is the width dimension of the rectangular waveguide 20, which is the dimension of the electronic device 10 in the second direction y, or equivalently, the length dimension of the first side edge 111 of the electronic device 10. b is the height dimension of the rectangular waveguide 20, which is the dimension of the electronic device 10 in the third direction z, or equivalently, the thickness dimension of the electronic device 10. Among them, b < a. The long side of the rectangular waveguide 20 is parallel to the first direction x, and the first direction x is the extension direction of the rectangular waveguide 20 (as shown by the arrow in Figure 9 ). As shown in Figure 10 , the solid line can represent the distribution of the power lines in the rectangular waveguide 20, and the dashed line can represent the distribution of the magnetic lines in the rectangular waveguide 20.

[0078] Based on the concept of cutoff frequency, the electromagnetic wave cutoff frequency fc of the rectangular waveguide 20 can be expressed by the formula: Calculated. Where c is the velocity of the electromagnetic wave in vacuum: 3 × 10⁻⁶ 8 In an embodiment where the length of the first side 111 is 280 mm, 2a = 560 mm. In embodiments where the electromagnetic noise is in the low-frequency band of the cellular circuit (e.g., below 800 MHz), the wavelength of the electromagnetic noise can be 370 mm. Since 370 mm < 2a, the electromagnetic noise transmits with low loss in a traveling wave mode in the rectangular waveguide 20. Figure 11 As shown, a traveling wave is a propagation state of a plane wave on a transmission line. Its amplitude changes exponentially along the propagation direction, and its phase changes linearly along the propagation direction. It can be understood as the wave propagating outward from the wave source.

[0079] The above analysis yielded the transmission characteristics of electromagnetic noise, making electromagnetic noise visible.

[0080] Based on the above analysis, such as Figure 12 and Figure 13 As shown, sources of electromagnetic noise (such as the second circuit board 330, controller 310, etc.) can be modeled to analyze the electric field distribution of the electromagnetic noise generated within the electronic device 10. Simultaneously, the source of electromagnetic noise is equivalent to a cavity antenna. It can be concluded that, as Figure 14 As shown, the gap 30 between the support plate 230 and the frame 110, caused by dimensional tolerances, is an open path, allowing electromagnetic noise to propagate as a traveling wave along this gap 30. For example, please refer to... Figure 13 and Figure 14 Electromagnetic noise can propagate along the gap 30 between the first support plate 230 and the first side 111, and the magnetic field strength of the electromagnetic noise within range A is relatively high.

[0081] Based on resonator analysis, please combine... Figure 6 and Figure 15 The first conductive element 910, the conductive outer shell 810, and the second conductive element 920 are grounded at locations with high electromagnetic noise magnetic field strength, altering the boundary conditions and consequently changing the resonant frequency, quality factor, and feeding structure of the resonator, thus affecting the propagation of electromagnetic noise. In embodiments where both the first conductive element 910 and the second conductive element 920 are positioned close to the connection between the display panel 200 and the first side edge 111, the electromagnetic noise magnetic field strength within range B is relatively high. Furthermore, combined with... Figure 13It is understood that the reduced magnetic field strength of electromagnetic noise, along with the first conductive component 910, the conductive outer shell 810, and the second conductive component 920, prevents at least a portion of the electromagnetic noise from being transmitted to the antenna 700. This helps to avoid electromagnetic noise generated by internal components of the electronic device 10 affecting the communication quality of the antenna 700. For example, please refer to... Figure 16 The line graph shown represents frequency (GHz) on the horizontal axis and isolation (dB) between antenna 700 and sources of electromagnetic noise (such as the second circuit board 330, controller 310, etc.) on the vertical axis. Line A is an example without the first conductive element 910 and the second conductive element 920, while lines B and C are examples with both the first conductive element 910 and the second conductive element 920. It can be seen that the first conductive element 910, the conductive housing 810, and the second conductive element 920 raise the cutoff frequency between antenna 700 and sources of electromagnetic noise from 500MHz to over 2GHz, and provide attenuation suppression of over 10dB for low-frequency electromagnetic wave transmission.

[0082] In the above embodiments, please refer to Figure 2 Multiple first conductive elements 910 may be provided. Each first conductive element 910 may be disposed within the conductive housing 810 of an auxiliary device 800 (e.g., Figure 6 As shown, the first conductive element 910 may be disposed on the conductive housing 810 of different auxiliary devices 800, or each first conductive element 910 may be disposed on the conductive housing 810 of different auxiliary devices 800. For example, multiple first conductive elements 910 may be disposed on the first audio component 510 and the second audio component 520, respectively.

[0083] In one alternative embodiment, please combine Figure 2 and Figure 14 Each of the first conductive elements 910 is spaced apart along a direction parallel to the first side 111. This arrangement helps to prevent electromagnetic noise that propagates along the gap 30 between the support plate 230 and the first side 111 from being transmitted to the antenna 700.

[0084] In one alternative embodiment, please combine Figure 2 and Figure 17 Multiple second conductive elements 920 may be provided, and each second conductive element 920 may be provided on the conductive housing 810 of one auxiliary device 800, or may be provided on the conductive housing 810 of different auxiliary devices 800. In some implementations, each second conductive element 920 may be spaced apart along a direction parallel to the first side 111.

[0085] In some implementations, multiple second conductive elements 920 and first conductive elements 910 are provided, and the number of second conductive elements 920 and first conductive elements 910 is equal. Each second conductive element 920 can be associated with a different first conductive element 910. In the above example, two or more second conductive elements 920 and first conductive elements 910 can be provided. This arrangement helps to prevent electromagnetic noise propagating along the gap 30 between the support plate 230 and the first side 111 from being transmitted to the antenna 700. For example, please refer to... Figure 18 The line graph shown represents frequency (GHz) on the horizontal axis and isolation (dB) between antenna 700 and the source of electromagnetic noise on the vertical axis. Line A represents an example without the first conductive element 910 and the second conductive element 920; line B represents an example with two of both the first conductive element 910 and the second conductive element 920; and line C represents an example with four of both the first conductive element 910 and the second conductive element 920. Therefore, in the low-frequency band of a cellular network, the first conductive element 910, the conductive housing 810, and the second conductive element 920 improve the isolation between antenna 700 and the source of electromagnetic noise by approximately 10dB. Increasing the number of the first conductive element 910 and the second conductive element 920 enhances the isolation effect, which helps prevent electromagnetic noise generated by internal components of the electronic device 10 from affecting the communication quality of antenna 700.

[0086] It should be noted that, in the description of the embodiments of this application, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection or an integral connection; they can also refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of this application, and are not intended to limit them; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some or as many of the technical features as possible; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An electronic device, characterized in that, include: The display panel, the bezel, and the back cover are provided, with the bezel disposed between the display panel and the back cover, and the display panel, the bezel, and the back cover forming an accommodating cavity. An antenna, an auxiliary device, and a circuit board are provided. The antenna is disposed on the frame, and the auxiliary device and the circuit board are disposed within the accommodating cavity. The auxiliary device is located between the antenna and the circuit board, and the auxiliary device includes a conductive housing. A first conductive element and a second conductive element are provided. The first conductive element is disposed between the conductive housing and the display panel, and is connected to the conductive housing and also connected to the ground layer of the display panel. The second conductive element is disposed between the conductive housing and the back cover, and is connected to the conductive housing and also connected to the back cover.

2. The electronic device according to claim 1, characterized in that, The auxiliary equipment also includes an insulating housing, and the conductive housing is disposed on the surface of the insulating housing.

3. The electronic device according to claim 1 or 2, characterized in that, The conductive housing includes a first housing, a second housing, and a connecting portion; the first housing is located on the side of the auxiliary device near the display panel and is connected to the first conductive component; the second housing is located on the side of the auxiliary device near the rear cover and is connected to the second conductive component; the connecting portion connects the first housing and the second housing.

4. The electronic device according to any one of claims 1 to 3, characterized in that, The conductive housing includes at least one of a steel housing, an aluminum housing, or a copper housing.

5. The electronic device according to any one of claims 1 to 4, characterized in that, The conductive outer shell is provided with at least one of a nickel plating layer or a tin plating layer.

6. The electronic device according to any one of claims 1 to 5, characterized in that, Both the first conductive element and the second conductive element are located near the connection between the display panel and the frame.

7. The electronic device according to any one of claims 1 to 6, characterized in that, The frame includes a first side edge, and a top edge and a bottom edge disposed opposite to each other. The first side edge connects the top edge and the bottom edge. The antenna is disposed on the first side edge, and the circuit board is disposed close to the bottom edge. There are multiple first conductive elements, and each first conductive element is spaced apart along a direction parallel to the first side.

8. The electronic device according to any one of claims 1 to 7, characterized in that, In a plane parallel to the rear cover, the projections of the first conductive element and the second conductive element are both located within the projection range of the auxiliary device.

9. The electronic device according to any one of claims 1 to 8, characterized in that, In the direction parallel to the rear cover, the length of the first conductive element and / or the length of the second conductive element is not less than 4 mm.

10. The electronic device according to any one of claims 1 to 9, characterized in that, The first conductive element and the second conductive element are conductive foam.

11. The electronic device according to any one of claims 1 to 10, characterized in that, The auxiliary device includes a device body and abutting member. The abutting member is disposed on the rear cover, and at least part of the abutting member is spaced apart from the rear cover. The device body is disposed between the abutting member and the rear cover. The abutting member is used to abut the device body against the rear cover. The conductive outer shell is disposed on the abutment member.

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