An electronic device

Abstract

The present application provides an electronic device, which relates to the technical field of terminal devices. It is used to solve the problem that the signal emitted by the antenna of the electronic device will interfere with the camera module and affect the normal operation of the camera module. The electronic device includes a shell, an antenna, a circuit board, components and a bracket. The antenna is arranged in the shell. The circuit board is arranged in the shell. The components are arranged in the shell, and there is a connection point between the components and the circuit board, and the components and the circuit board are electrically connected through the connection point, and the components are located between the connection point and the antenna. The bracket is arranged in the shell, the circuit board and the components are located on the same side of the bracket, and there is a gap between the components and the bracket. Among them, a hollow structure is provided on the bracket, and the hollow structure penetrates the two side surfaces of the bracket along the thickness direction of the bracket, and the hollow structure is located between the antenna and the connection point, and the two opposite inner walls in the hollow structure are spaced apart along the direction of the antenna pointing to the connection point.

Description

Technical Field

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

[0002] With the continuous development of technology, the functions of electronic devices (such as mobile phones, tablet computers, etc.) are becoming more and more abundant. For example, a camera module is set inside the electronic device to have a shooting function. However, the signal emitted by the antenna of the electronic device may interfere with the camera module and affect the normal operation of the camera module. Summary of the invention

[0003] An embodiment of the present application provides an electronic device for solving the problem that a signal emitted by an antenna of the electronic device may interfere with a camera module and affect the normal operation of the camera module.

[0004] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0005] The present application provides an electronic device, which includes a housing, an antenna, a circuit board, components and a bracket. The antenna is arranged in the housing. The circuit board is arranged in the housing. The components are arranged in the housing, and there is a connection point between the components and the circuit board, and the components and the circuit board are electrically connected through the connection point, and the components are located between the connection point and the antenna. The bracket is arranged in the housing, and the circuit board and the components are located on the same side of the bracket, and there is a gap between the components and the bracket. Among them, a hollow structure is provided on the bracket, and the hollow structure penetrates the two side surfaces of the bracket along the thickness direction of the bracket, and the hollow structure is located between the antenna and the connection point, and the two opposite inner walls in the hollow structure are spaced apart along the direction in which the antenna points to the connection point.

[0006] The electronic device provided in the present application changes the current distribution during electromagnetic wave propagation in the cavity formed by the gap between the bracket and the components by opening a hollow structure on the bracket. This change will cause the line capacitance and inductance characteristics to change, so that the gap between the bracket and the components forms a filtering structure, thereby reducing the noise propagation level in a specific frequency band, that is, improving the anti-interference ability of the components.

[0007] Specifically, due to the existence of the hollow structure, the conduction current on the bracket will bypass the area with the hollow structure through a longer path, that is, flow along the edge of the hollow area. In this process, a potential difference will be formed on both sides of the hollow structure along the direction of the antenna pointing to the above connection point. At this time, the two inner walls spaced apart in the direction of the antenna pointing to the connection point in the hollow structure can be equivalent to the parasitic capacitance in parallel on the path, and the circumference of the hollow structure parallel to the plane of the middle plate can be equivalent to the parasitic inductance in series on the path, so that the hollow structure is equivalent to an LC parallel resonant circuit. By adjusting the distance between the two inner walls and the circumference of the hollow structure, the frequency of the LC parallel resonant circuit is matched with the signal frequency band of the antenna, thereby playing a filtering role to reduce the risk of interference to components.

[0008] In a possible implementation of the embodiment of the present application, a plurality of hollow structures are provided, and the plurality of hollow structures are spaced apart along the direction of the antenna pointing to the connection point. Under this structure, a multi-stage filtering structure can be formed to further improve the filtering effect of the antenna signal.

[0009] In a possible implementation of the embodiment of the present application, the spacing between the two inner walls spaced apart in the direction of the antenna pointing to the connection point in each hollow structure is equal to the spacing in other hollow structures. In addition, the perimeter of each hollow structure in a plane parallel to the surface of the bracket is equal to the perimeter of other hollow structures. Under this structure, multiple hollow structures can form the same LC parallel resonant circuit, thereby achieving a double filtering effect on the same antenna signal.

[0010] In a possible implementation of the embodiment of the present application, the hollow structure includes a first extension section, the first extension section runs through the two side surfaces of the bracket, and the first extension section extends in a direction parallel to the surface of the bracket, and two inner walls in the first extension section that are spaced apart in the direction of the antenna pointing to the connection point are first inner walls, and the two first inner walls are parallel to the extension direction of the first extension section. Under this result, the hollow structure is formed into a long strip to ensure that the antenna signal can pass through the first extension section during propagation, thereby playing a filtering role.

[0011] In a possible implementation of the embodiment of the present application, the hollow structure further includes a second extension section, the extension direction of the second extension section intersects with the extension direction of the first extension section, and one end of the second extension section is connected to the first extension section. Under this structure, it is convenient to increase the circumference of the hollow structure, thereby facilitating the adjustment of the frequency of the equivalent LC parallel resonant circuit to adapt to different antenna application scenarios.

[0012] In a possible implementation of the embodiment of the present application, a plurality of second extension segments are provided, and the plurality of second extension segments are spaced apart along the extension direction of the first extension segment. Under this structure, the adjustment range of the circumference of the hollow structure can be further increased.

[0013] In a possible implementation of the embodiment of the present application, the extension direction of the second extension section is perpendicular to the extension direction of the first extension section. Under this structure, it is possible to avoid the second extension sections from intersecting each other, thereby improving the structural reliability.

[0014] In a possible implementation of the embodiment of the present application, two second extension sections are provided, and the two second extension sections are respectively provided at both ends of the first extension section. Under this structure, it is helpful to reduce the risk of adjacent hollow structures affecting each other when multiple hollow structures are provided.

[0015] In a possible implementation of the embodiment of the present application, the hollow structure includes a first hollow structure and a second hollow structure, the first extension section of the first hollow structure and the first extension section of the second hollow structure are parallel to each other and are spaced apart in the direction of the antenna pointing to the connection point; the two second extension sections of the second hollow structure are located between the two second extension sections of the first hollow structure. In this way, a two-stage filtering structure can be formed, which is conducive to improving the filtering effect.

[0016] In a possible implementation of the embodiment of the present application, the hollow structure further includes a third hollow structure, the first extension section of the second hollow structure and the first extension section of the third hollow structure are parallel to each other and are spaced apart in the direction of the antenna pointing to the connection point; the two second extension sections of the third hollow structure are located between the two second extension sections of the second hollow structure. In this way, a three-level filtering effect can be formed, which is conducive to further improving the filtering effect.

[0017] In a possible implementation of the embodiment of the present application, the second extension section is arranged on a side of the first extension section away from the antenna. Under this structure, the distance between the first extension section and the antenna can be reduced so that the antenna signal can be transmitted to the hollow structure as quickly as possible to play a filtering role, which is conducive to improving the filtering effect.

[0018] In a possible implementation of the embodiment of the present application, along the thickness direction of the electronic device, the vertical projection of the region where the hollow structure is provided on the bracket on the housing at least partially overlaps with the vertical projection of the components on the housing. Under this structure, it can be ensured that during the propagation of the antenna signal, it can be propagated between the hollow structure and the components, so that the hollow structure can play a filtering role on the antenna signal.

[0019] In a possible implementation of the embodiment of the present application, along the thickness direction of the electronic device, a vertical projection of a region on the bracket having a hollow structure on the housing covers a vertical projection of the component on the housing.

[0020] In a possible implementation of the embodiment of the present application, the components include a front camera module.

[0021] In a possible implementation of the embodiment of the present application, the front camera module includes a camera body and a camera substrate, the camera body is arranged on the camera substrate, the camera substrate is electrically connected to the circuit board, and there is a gap between the camera substrate and the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A structural diagram of an electronic device provided in an embodiment of the present application;

[0023] Figure 2 An exploded diagram of an electronic device provided in an embodiment of the present application;

[0024] Figure 3 A cross-sectional structural diagram of a bracket and a front camera module provided in an embodiment of the present application;

[0025] Figure 4 This is a structural diagram of the relative position between the bracket and the front camera module in an ideal state;

[0026] Figure 5 A structural diagram of the relative position between the bracket and the front camera module in the related art;

[0027] Figure 6 for Figure 5 A graph of the isolation simulation results when the gap between the bracket and the front camera module is different in size is provided;

[0028] Figure 7 A top view of a bracket of an electronic device is provided for an embodiment of the present application;

[0029] Figure 8 for Figure 7 A cross-sectional diagram of the provided bracket, front camera module, and antenna;

[0030] Fig. 9 A structural diagram of a hollow structure provided in an embodiment of the present application;

[0031] Fig.10 A structural diagram of another first extension section provided in an embodiment of the present application;

[0032] Fig.11 A structural diagram of another hollow structure provided in an embodiment of the present application;

[0033] Fig.12 A structural diagram of another hollow structure provided in an embodiment of the present application;

[0034] Fig.13 A structural diagram of another hollow structure provided in an embodiment of the present application;

[0035] Fig.14A structural diagram of another hollow structure provided in an embodiment of the present application;

[0036] Fig.15 A simulation effect diagram of a bracket (without a hollow structure) provided for related technologies;

[0037] Fig.16 A simulation effect diagram of a bracket (with three hollow structures) provided in an embodiment of the present application;

[0038] Fig.17 for Fig.15 and Fig.16 A curve graph of the isolation simulation results of the bracket 600 is provided.

[0039] Figure markings: 10-electronic device; 100-display module; 110-light-transmitting cover; 120-display screen; 200-housing; 210-back cover; 220-frame; 230-middle plate; 300-circuit board; 400-components; 410-front camera module; 411-camera body; 412-camera substrate; 420-FPC board; 430-BTB connector; 500-antenna; 600-bracket; 610-hollow structure; 610a-first hollow structure; 610b-second hollow structure; 610c-third hollow structure; 610d-fourth hollow structure; 610f-fifth hollow structure; 611-first extension section; 611a-first inner wall; 611b-second inner wall; 612-second extension section. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0041] In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features.

[0042] In addition, in the present application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to the changes in the orientation of the components in the drawings.

[0043] In the present application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0044] The embodiment of the present application provides an electronic device. Specifically, the electronic device may be a portable electronic device or other types of electronic devices. For example, the electronic device may be a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a monitor, a camera, a personal computer, a notebook computer, a wearable device, etc. For the convenience of explanation, the following examples are all taken as an example of the electronic device being a mobile phone.

[0045] See also Figure 1 and Figure 2 , Figure 1 This is a structural diagram of an electronic device 10 provided in an embodiment of the present application. Figure 2 The exploded view of the electronic device 10 provided in the embodiment of the present application. As can be seen from the above, in the present embodiment, the electronic device 10 is a mobile phone, and the electronic device 10 can be in an approximately rectangular plate-shaped structure. The electronic device 10 can include a display module 100, a housing 200, a circuit board 300, components 400, an antenna 500 and a bracket 600.

[0046] Understandably, Figure 1 and Figure 2 Only some components of the electronic device 10 are schematically shown, and the actual shapes, sizes, positions and structures of these components are not subject to the present invention. Figure 1 and Figure 2 restrictions.

[0047] The above-mentioned display module 100 is used to display images, videos, etc. The display module 100 may include a light-transmitting cover plate 110 and a display screen 120 (English name: panel, also called display panel), and the light-transmitting cover plate 110 and the display screen 120 are stacked. The material of the light-transmitting cover plate 110 includes but is not limited to glass. For example, the light-transmitting cover plate 110 can adopt an ordinary light-transmitting cover plate 110, which is used to protect the display screen 120 to prevent the display screen 120 from being damaged by external force, and can play a dust-proof role. Alternatively, the light-transmitting cover plate 110 can also adopt a light-transmitting cover plate 110 with a touch function, so that the electronic device 10 has a touch function, which makes it more convenient for users to use. Therefore, the present application does not specifically limit the specific material of the light-transmitting cover plate 110.

[0048] In addition, the display screen 120 may be a flexible display screen 120 or a rigid display screen 120. For example, the display screen 120 may be an organic light-emitting diode (OLED) display screen 120, an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (AMOLED) display screen 120, a mini organic light-emitting diode (MIL-E) display screen 120, a micro organic light-emitting diode (MIL-E) display screen 120, a micro organic light-emitting diode (MIL-E) display screen 120, a quantum dot light-emitting diode (QLED) display screen 120, or a liquid crystal display (LCD).

[0049] The housing 200 is used to protect the components 400 inside the electronic device 10. The housing 200 may include a back cover 210 and a frame 220. The back cover 210 is located on the side of the display screen 120 away from the light-transmitting cover plate 110, and is stacked with the light-transmitting cover plate 110 and the display screen 120. The frame 220 is located between the light-transmitting cover plate 110 and the back cover 210. The frame 220 is fixed to the back cover 210. For example, the frame 220 can be fixed to the back cover 210 by bonding, threading, welding, clamping, etc.; or, the frame 220 can also be an integrally formed structure with the back cover 210, that is, the frame 220 and the back cover 210 form a structural component as a whole. The light-transmitting cover plate 110 can be fixed to the frame 220 by gluing, so that the light-transmitting cover plate 110, the back cover 210 and the frame 220 surround the accommodating cavity inside the electronic device 10, and the circuit board 300 assembly and at least part of the components 400 are all arranged in the accommodating cavity.

[0050] In some embodiments, the housing 200 may further include a middle plate 230, which is disposed in the accommodating cavity and is located on the side of the display screen 120 away from the light-transmitting cover plate 110. The middle plate 230 is fixedly connected to the frame 220 to form the middle frame of the electronic device 10. For example, the middle plate 230 and the frame 220 may be fixedly connected by gluing, threading, welding, snapping, etc.; or, the middle plate 230 and the frame 220 may also be an integrally formed structure, that is, the middle plate 230 and the frame 220 form a structural component as a whole. The middle plate 230 divides the accommodating cavity into two independent spaces, one of which is located between the light-transmitting cover plate 110 and the middle plate 230, and the display screen 120 is located in the space. The other space is located between the middle plate 230 and the back cover 210, and the circuit board 300 is located in the space.

[0051] The circuit board 300 is used to set the components 400 inside the electronic device 10 and realize the electrical connection between the components 400. The circuit board 300 can be fixed on the middle plate 230 by gluing, screw connection, welding, clamping, etc. Therefore, the present application does not specifically limit the fixing method of the circuit board 300.

[0052] The above-mentioned components 400 are used to implement various functions of the electronic device 10. For example, the components 400 may be a control chip (such as a system on chip, SOC), a graphics processing unit (GPU), a universal flash storage (UFS), a camera module, a flash module, a capacitor, a resistor, an inductor, etc.

[0053] The bracket 600 is disposed inside the electronic device 10, and the bracket 600 is disposed between the circuit board 300 and the back cover 210. Specifically, the bracket 600 is fixed to the middle plate 230, and the bracket 600 covers the surface of the circuit board 300 facing the back cover 210, which can effectively protect some components 400 disposed on the circuit board 300 and the connectors used to connect the components 400, so as to reduce the risk of damage caused by the movement of the components 400 or the connectors when the back cover 210 of the electronic device 10 is opened.

[0054] For example, see Figure 3 , Figure 3The cross-sectional structure diagram of the bracket 600 and the front camera module 410 provided in the embodiment of the present application. The above-mentioned component 400 may be a front camera module 410, and the light incident surface of the front camera module 410 faces the side of the light-transmitting cover plate 110, so that the user can take selfies and other operations. The front camera module 410 and the above-mentioned circuit board 300 are located on the same side of the bracket 600, that is, the front camera module 410 and the circuit board 300 are both located between the bracket 600 and the above-mentioned middle plate 230, and the front camera module 410 and the circuit board 300 may be connected by a flexible connector, for example, the flexible connector may be an FPC board 420 (flexible printed circuit).

[0055] The front camera module 410 may include a camera body 411 and a camera substrate 412, the camera substrate 412 is located between the camera body 411 and the bracket 600, the first end of the FPC board 420 is electrically connected to the camera substrate 412 of the front camera module 410, and the second end of the FPC board 420 is electrically connected to the circuit board 300. In addition, the FPC board 420 and the circuit board 300 may be electrically connected through a connector, such as a BTB connector 430 (board to board connector), so as to realize the electrical connection between the front camera module 410 and the circuit board 300.

[0056] See also Figure 4 , Figure 4 FIG. 4 is a structural diagram of the relative position between the bracket 600 and the front camera module 410 in an ideal state. In an ideal state, the bracket 600 and the camera substrate 412 should fit each other, that is, there is no gap between the two. Figure 4 As shown, the front camera module 410 can be ensured to work normally.

[0057] In the related art, due to factors such as material tolerance and deformation of the bracket 600, there may be a gap between the camera substrate 412 and the bracket 600, that is, the two cannot fit perfectly. Figure 5 and Figure 6 , Figure 5 is a structural diagram of the relative position between the bracket 600 and the front camera module 410 in the related art, Figure 6 for Figure 5 A curve chart of the isolation simulation results when the gap between the bracket 600 and the front camera module 410 is different in size is provided. Figure 6 The curve where point A is located is the simulation result curve when the above gap is 0.3mm, and the isolation of point A is -32.026dB. Figure 6The curve where point B is located is the simulation result curve when the above gap is 0.15mm, and the isolation of point B is -38.138dB. Figure 6 The curve at point C is the simulation result curve when the gap is 0.02 mm, and the isolation at point C is -45.942 dB. It can be seen that the smaller the gap is, the smaller the interference between the signal of the antenna 500 and the front camera module 410 is.

[0058] However, due to the trend of electronic devices 10 to become thinner and lighter, it is difficult to insert electrical auxiliary materials into the gap for connection, that is, to eliminate the gap. Therefore, the gap forms a propagation path for interference signals (such as Figure 3 The signal emitted by the antenna 500 will propagate through the gap and propagate to the position where the FPC board 420 and the circuit board 300 are connected through the BTB connector 430, thereby interfering with the normal operation of the front camera module 410, for example, causing the front camera module 410 to freeze or display abnormalities.

[0059] To solve the above problems, an embodiment of the present application provides an electronic device 10, which may include the above-mentioned housing 200, antenna 500, circuit board 300, component 400 and bracket 600, and the component 400 and circuit board 300 are located on the same side of the bracket 600. For example, the component 400 may be a front camera module 410, and the camera substrate 412 of the front camera module 410 and the circuit board 300 are electrically connected through the above-mentioned FPC board 420, and the position where the FPC board 420 and the circuit board 300 are electrically connected (i.e., the position where the electrical connection is achieved through the above-mentioned BTB connector 430) is called a connection point.

[0060] Among them, see Figure 7 and Figure 8 , Figure 7 A top view of a bracket 600 of an electronic device 10 is provided for an embodiment of the present application. Figure 8 for Figure 7 A cross-sectional structural diagram of a bracket 600, a front camera module 410, and an antenna 500 is provided. A hollow structure 610 is provided on the bracket 600, and the hollow structure 610 penetrates the two side surfaces of the bracket 600 (i.e., the surface facing the camera substrate 412 and the surface facing the back cover 210) along the thickness direction of the bracket 600 (i.e., the thickness direction of the electronic device 10), and the hollow structure 610 is located between the antenna 500 and the above-mentioned connection point. The hollow structure 610 has two opposite inner walls, and the two opposite inner walls are spaced apart along the direction of the antenna 500 pointing to the connection point, that is, the distribution direction of the two inner walls is consistent with the signal propagation direction of the antenna 500.

[0061] Based on this, the hollow structure 610 opened on the bracket 600 changes the current distribution when the electromagnetic wave propagates in the cavity formed by the gap between the bracket 600 and the camera substrate 412. This change will cause the line capacitance and inductance characteristics to change, so that the gap between the bracket 600 and the camera substrate 412 forms a filtering structure, which is beneficial to reduce the noise propagation level in a specific frequency band, that is, reduce the interference of the antenna 500 signal on the front camera module 410, so as to improve the anti-interference ability of the front camera module 410.

[0062] Specifically, due to the hollow structure 610 opened on the bracket 600, the conduction current on the bracket 600 needs to bypass the hollow structure 610, that is, the conduction current on the bracket 600 needs to bypass the area where the hollow structure 610 is located via a longer path. In this process, a potential difference will be formed on both sides of the hollow structure along the direction of the antenna 500 pointing to the connection point. At this time, the two inner walls spaced apart along the direction of the antenna 500 pointing to the connection point can be equivalent to the parasitic capacitance C connected in parallel on the path, and the distance between the two inner walls is the spacing D (such as Figure 8 shown).

[0063] The perimeter of the hollow structure 610 in a plane parallel to the middle plate 230 (ie, in a plane parallel to the surface of the bracket 600) is H (eg Figure 7 The perimeter of the rectangular structure shown in FIG. 6 is the perimeter of the rectangular structure, and the edge of the rectangular structure is the bypass path of the conduction current. The perimeter H is equivalent to the parasitic inductance L connected in series on the path. That is, the hollow structure 610 opened on the bracket 600 is equivalent to a LC parallel resonant circuit connected in series in the loop, so that it can play the characteristics of the LC parallel resonant circuit, that is, it can play a filtering role.

[0064] Among them, the size of the spacing D can affect the size of the equivalent parasitic capacitance C (the smaller the spacing D, the larger the parasitic capacitance C), and the size of the circumference H can affect the size of the equivalent parasitic inductance L (the larger the circumference H, that is, the greater the detour distance of the conduction current, the larger the parasitic inductance L). According to the characteristics of the LC parallel resonant circuit, that is f is frequency, π is pi, L is inductance, and C is capacitance. That is, by adjusting the inductance L and the capacitance C, the frequency f can be adjusted.

[0065] In this way, by adjusting the equivalent parasitic capacitance C and the equivalent parasitic inductance L formed by the hollow structure 610, the frequency f can be adjusted so that the frequency f of the LC resonant circuit formed by the hollow structure 610 on the bracket 600 can match the signal frequency band of the antenna 500, that is, the frequency f is within the signal frequency band of the antenna 500, so that the hollow structure 610 on the bracket 600 can become a filtering structure to filter out noise.

[0066] In addition, the vertical projection of the region of the bracket 600 where the hollow structure 610 is provided on the middle plate 230 at least partially overlaps with the vertical projection of the front camera module 410 (i.e., the component 400) on the middle plate 230. Therefore, the filtering structure formed by the hollow structure 610 can filter out the noise signal transmitted between the camera substrate 412 and the bracket 600, thereby achieving a filtering effect.

[0067] For example, the vertical projection of the region of the bracket 600 with the hollow structure 610 on the middle plate 230 can cover the vertical projection of the front camera module 410 (i.e., the above-mentioned component 400) on the middle plate 230. In this way, it is helpful to further improve the filtering effect of the noise signal propagating in the gap between the bracket 600 and the camera substrate 412, thereby further ensuring the normal operation of the front camera module 410 and reducing the risk of interference to the front camera module 410.

[0068] In some embodiments, see Fig. 9 , Fig. 9 A structural diagram of a hollow structure 610 provided in an embodiment of the present application. The above-mentioned hollow structure 610 may include a first extension section 611, and the first extension section 611 passes through the two side surfaces of the bracket 600, that is, the first extension section 611 passes through the surface of the bracket 600 facing the back cover 210 and the surface of the bracket 600 facing the camera substrate 412, and the first extension section 611 extends in a direction parallel to the surface of the bracket 600 (that is, parallel to the direction of the middle plate 230). The two inner walls of the first extension section 611 that are spaced apart in the direction of the antenna 500 pointing to the connection point are first inner walls 611a, and the two first inner walls 611a are parallel to the extension direction of the first extension section 611.

[0069] For example, the first extension section 611 may form a rectangular structure in a plane parallel to the middle plate 230, and the length direction of the first extension section 611 (eg Fig. 9 The X-axis direction) can be the same as the direction in which the antenna 500 points to the connection point (such as Fig. 9 The two inner walls of the first extension section 611 parallel to the extension direction thereof are spaced apart in the direction of the antenna 500 pointing to the connection point, that is, the first extension section 611 is spaced apart in the width direction thereof (i.e. Fig. 9 The two inner walls (ie, the two first inner walls 611a) distributed in the Y-axis direction can form an equivalent parasitic capacitor C. The equivalent parasitic inductance L can be formed by one circle of the rectangular structure formed by the first extension section 611.

[0070] Therefore, by adjusting the width of the first extension section 611, the distance D between the two first inner walls 611a (the two inner walls distributed along the direction of the antenna 500 pointing to the connection point) in the first extension section 611 can be adjusted (e.g. Figure 8 As shown), the size of the equivalent parasitic capacitance C formed by the first extension section 611 can be adjusted; at the same time, by adjusting the length of the first extension section 611, that is, the perimeter H of the rectangular structure formed by the first extension section 611 in a plane parallel to the middle plate 230 can be adjusted, thereby adjusting the size of the equivalent parasitic inductance L formed by the first extension section 611.

[0071] In some other possible embodiments, the first extension section 611 may also form other structures in a plane parallel to the middle plate 230, for example, a trapezoid (isosceles trapezoid or right-angle trapezoid, etc.), see Fig.10 , Fig.10 Another structural diagram of the first extension section 611 provided in an embodiment of the present application. That is, the lengths of the two first inner walls 611a distributed in the direction of the antenna 500 pointing to the connection point in the first extension section 611 may not be equal, that is, the two second inner walls 611b distributed in the first extension section 611 along its extension direction intersect with the first inner wall 611a but are not perpendicular. Alternatively, the two second inner walls 611b in the first extension section 611 may also form an arc surface. Therefore, the present application does not make any special limitation on this.

[0072] On this basis, see Fig.11 , Fig.11 This is a structural diagram of another hollow structure 610 provided in an embodiment of the present application. The hollow structure 610 provided in an embodiment of the present application may further include a second extension section 612, the extension direction of the second extension section 612 intersects with the extension direction of the first extension section 611, that is, the second extension section 612 also extends in a direction parallel to the surface of the bracket 600 (that is, parallel to the direction of the middle plate 230), and one end of the second extension section 612 is connected to the first extension section 611.

[0073] In this way, by controlling the length of the second extension section 612, the circumference H of the entire hollow structure 610 can be adjusted, that is, the bypass path of the current conducted on the bracket 600 is extended, so that the size of the equivalent parasitic inductance L formed by the hollow structure 610 can be adjusted. In addition, since the extension direction of the second extension section 612 intersects with the extension direction of the first extension section 611, that is, the extension direction of the second extension section 612 is different from that of the first extension section 611, it is possible to avoid the first extension section 611 extending along its extension direction ( Fig.11 The hollow structure 610 extends in the X-axis direction to the edge of the bracket 600, which is beneficial to improving the adjustment range of the circumference H of the hollow structure 610.

[0074] Furthermore, a plurality of the second extension segments 612 may be provided, and the plurality of second extension segments 612 may be spaced apart along the extension direction of the first extension segment 611 , so as to further increase the adjustment range of the circumference H of the hollow structure 610 .

[0075] In addition, to avoid the extension directions of the second extension sections 612 from affecting each other. Fig.11 , the extension direction of the second extension section 612 provided in the embodiment of the present application ( Fig.11 Y-axis direction) and the extension direction of the first extension section 611 ( Fig.11 In this structure, the plurality of second extension segments 612 can form a mutually parallel structure, so that the plurality of second extension segments 612 extend in one direction to avoid the situation where the lengths of some of the second extension segments 612 are affected by the intersection of the extension directions.

[0076] Exemplarily, the above-mentioned second extension segments 612 can be provided with four, the four second extension segments 612 are parallel to each other, and the four second extension segments 612 can be respectively provided at both ends and the middle of the first extension segment 611, that is, two second extension segments 612 are respectively provided at both ends of the first extension segment 611, and another two second extension segments 612 can be provided in the middle of the first extension segment 611.

[0077] Furthermore, among the four second extension sections 612, the distance between two adjacent second extension sections 612 may be completely the same, that is, the four second extension sections 612 may be distributed at equal intervals. Alternatively, the distance between two adjacent second extension sections 612 may also be different. Therefore, this application does not make any special limitation on this.

[0078] Alternatively, only two second extension sections 612 may be provided, the two second extension sections 612 are parallel to each other, and the two second extension sections 612 are respectively provided at both ends of the first extension section 611. Therefore, the present application does not specifically limit the number of second extension sections 612.

[0079] In some embodiments, the second extension section 612 may be disposed on one side of the first extension section 611 close to the connection point between the FPC board 420 and the circuit board 300 (i.e., at the Fig.11 The antenna 500 not shown in the figure is located on the left side of the first extension section 611, and the connection point is located on the right side of the first extension section 611). Under this structure, it is beneficial to reduce the distance between the first extension section 611 and the antenna 500, thereby reducing the time for the antenna 500 signal to propagate to the first extension section 611, and further improving the efficiency of filtering the antenna 500 signal.

[0080] In some other possible embodiments, the second extension section 612 may also be arranged on the side of the first extension section 611 close to the antenna 500. Alternatively, when there are multiple second extension sections 612, the second extension sections 612 may be arranged on both sides of the first extension section 611, that is, a part of the multiple second extension sections 612 is arranged on the side of the first extension section 611 close to the antenna 500, and another part of the multiple second extension sections 612 is arranged on the side of the first extension section 611 close to the above-mentioned connection point, so that the hollow structure 610 can adapt to more application scenarios. Therefore, the present application does not specifically limit the distribution position of the hollow first extension section 611 and the second extension section 612.

[0081] To further enhance the filtering effect of the hollow structure 610. Fig.12 , Fig.12 A structural diagram of another hollow structure 610 provided in an embodiment of the present application. A plurality of hollow structures 610 may be provided on the bracket 600 provided in an embodiment of the present application, and the plurality of hollow structures 610 may be spaced apart along the direction of the antenna 500 pointing to the connection point. Under this structure, that is, a plurality of the above-mentioned LC parallel resonant circuits are connected in series in the equivalent circuit, thereby forming a multi-stage filtering structure to improve the filtering effect.

[0082] The following description takes an example in which the hollow structure 610 includes a first extension segment 611 and two second extension segments 612 , the two second extension segments 612 are parallel to each other and perpendicular to the first extension segment 611 , and the two second extension segments 612 are respectively disposed at two ends of the first extension segment 611 .

[0083] In some embodiments, please refer to Fig.12 , the plurality of hollow structures 610 may include a first hollow structure 610a and a second hollow structure 610b, the first extension section 611 of the first hollow structure 610a and the first extension section 611 of the second hollow structure 610b are parallel to each other and are spaced apart in the direction of the antenna 500 pointing to the connection point. The two second extension sections 612 of the second hollow structure 610b are located between the two second extension sections 612 of the first hollow structure 610a. Under this structure, a two-stage filtering structure is formed by setting two hollow structures 610, which is conducive to improving the filtering effect.

[0084] In some other embodiments, see Fig.13 , Fig.13A structural diagram of another hollow structure 610 provided in an embodiment of the present application. The above-mentioned multiple hollow structures 610 may also include a third hollow structure 610c, wherein the first extension section 611 of the third hollow structure 610c is parallel to the second hollow structure 610b and the first extension section 611 of the first hollow structure 610a, and are spaced apart. The two second extension sections 612 of the third hollow structure 610c are located between the two second extension sections 612 of the second hollow structure 610b. That is, the first hollow structure 610a, the second hollow structure 610b and the third hollow structure 610c are all formed in a shape similar to a "C" shape, and the three hollow structures 610 in a shape similar to a "C" shape are arranged in sequence, so as to form a three-stage filtering structure.

[0085] On this basis, in order to further improve the filtering effect of the multi-stage filtering structure formed by the above-mentioned multiple hollow structures 610, the distance D between the two first inner walls 611a in the first extension section 611 of the above-mentioned multiple hollow structures 610 can be the same, and the perimeter H of the multiple hollow structures 610 in the plane parallel to the middle plate 230 can also be the same.

[0086] In this way, the frequency of the equivalent LC parallel resonant circuit formed by each hollow structure 610 is the same, so that multiple hollow structures 610 can form a filtering effect on the antenna 500 signal of the same frequency band, that is, the filtering effect formed by multiple hollow structures 610 on the antenna 500 signal of the same frequency band is doubled, thereby further improving the filtering effect and further reducing the risk of interference with the front camera module 410.

[0087] In some other possible embodiments, see Fig.14 , Fig.14 A structural diagram of another hollow structure 610 provided in an embodiment of the present application. The spacing D between the two first inner walls 611a in the first extension section 611 of the above-mentioned multiple hollow structures 610, and the perimeter H of the multiple hollow structures 610 may also be different. Alternatively, some of the multiple hollow structures 610 are the same, and some are different, which is conducive to enabling the multiple hollow structures 610 to filter signals of different frequency bands to adapt to more application scenarios. Therefore, the present application does not make any special restrictions on this.

[0088] Exemplarily, the plurality of hollow structures 610 include a fourth hollow structure 610d and two fifth hollow structures 610f. The distance D and the perimeter H of the two fifth hollow structures 610f are the same, and the two fifth hollow structures 610f are along the extension direction of the first extension section 611 ( Fig.14Meanwhile, the spacing D and the perimeter H of the fourth hollow structure 610d are different from those of the two fifth hollow structures 610f, and the two fifth hollow structures 610f are located between the two second extension sections 612 of the fourth hollow structure 610d.

[0089] Based on this, the bracket 600 without the above hollow structure 610 and the bracket 600 with three hollow structures 610 (i.e. Fig.13 The first hollow structure 610a, the second hollow structure 610b and the third hollow structure 610c) are shown in the figure for simulation test. Fig.15 and Fig.16 as well as Fig.17 , Fig.15 The simulation effect diagram of the bracket 600 (without the hollow structure 610) provided in the related art is shown in FIG. Fig.16 This is a simulation effect diagram of the bracket 600 (with three hollow structures 610) provided in the embodiment of the present application.

[0090] Among them, Fig.15 and Fig.16 In the figure, the dotted-line box area corresponds to the connection point between the FPC board 420 and the circuit board 300 (the connection point is not shown in the figure, it is located below the bracket 600 shown in the figure and is blocked by the bracket 600). In this area, the darker the color, the stronger the electric field strength in the area, and the greater the interference to the connection point (i.e., the front camera module 410). It can be seen from the figure that the electric field strength of the antenna propagating to the bracket 600 without the hollow structure 610 in the n78 frequency band is significantly higher than the electric field strength on the bracket 600 with three hollow structures 610.

[0091] Also, see Fig.17 , Fig.17 for Fig.15 and Fig.16 A curve graph of the isolation simulation results of the bracket 600 is provided. Fig.17 The curve where the point D shown in FIG. 1 is located is the isolation curve of the bracket 600 without the hollow structure 610 , and the isolation of the point D is 38.103; Fig.17 The curve where the point E is located is the isolation curve of the bracket 600 with three hollow structures 610, and the isolation of the point E is 43.051. That is, the isolation between the antenna 500 and the front camera module 410 (i.e., the connection point where the FPC board 420 and the circuit board 300 are electrically connected) is improved by 5dB in the range of 3500MHz to 4000MHz. Therefore, the interference to the front camera module 410 is reduced, which is conducive to ensuring the normal operation of the front camera module 410.

[0092] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0093] 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 who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An electronic device, characterized in that: include: case; An antenna is disposed in the housing; A circuit board is arranged in the housing; A front camera module is arranged in the housing, a connection point is provided between the front camera module and the circuit board, and the front camera module and the circuit board are electrically connected through the connection point, and the front camera module is located between the connection point and the antenna; the front camera module includes a camera body and a camera substrate, the camera body is arranged on the camera substrate, and the camera substrate is electrically connected to the circuit board; A bracket is arranged in the housing, the circuit board and the front camera module are located on the same side of the bracket, and there is a gap between the camera substrate of the front camera module and the bracket; Among them, a hollow structure is opened on the bracket, and the hollow structure penetrates the two side surfaces of the bracket along the thickness direction of the bracket, the hollow structure is located between the antenna and the connection point, and the two opposite inner walls in the hollow structure are spaced apart along the direction of the antenna pointing to the connection point, and the two inner walls in the hollow structure distributed along the direction of the antenna pointing to the connection point are equivalent to parasitic capacitance, and a peripheral edge of the hollow structure in a plane parallel to the surface of the bracket is equivalent to a parasitic inductance, so that the hollow structure is equivalent to an LC parallel resonant circuit.

2. The electronic device according to claim 1, characterized in that: There are multiple hollow structures, and the multiple hollow structures are distributed at intervals along the direction from the antenna to the connection point.

3. The electronic device according to claim 2, characterized in that: The distance between two inner walls in each of the hollow structures that are spaced apart in the direction in which the antenna points to the connection point is equal; Furthermore, the perimeter of each of the hollow structures in a plane parallel to the surface of the support is equal.

4. The electronic device according to any one of claims 1 to 3, characterized in that: The hollow structure includes a first extension section, which runs through the two side surfaces of the bracket and extends in a direction parallel to the surface of the bracket. Two inner walls in the first extension section that are spaced apart along the direction in which the antenna points to the connection point are first inner walls, and the two first inner walls are parallel to the extension direction of the first extension section.

5. The electronic device according to claim 4, characterized in that: The hollow structure further includes a second extension segment, an extension direction of the second extension segment intersects with an extension direction of the first extension segment, and one end of the second extension segment is connected to the first extension segment.

6. The electronic device according to claim 5, characterized in that: A plurality of the second extension segments are provided, and the plurality of second extension segments are distributed at intervals along the extension direction of the first extension segment.

7. The electronic device according to claim 6, characterized in that: An extending direction of the second extending section is perpendicular to an extending direction of the first extending section.

8. The electronic device according to claim 6, characterized in that: There are two second extension sections, and the two second extension sections are respectively arranged at two ends of the first extension section.

9. The electronic device according to claim 8, characterized in that: The hollow structure includes a first hollow structure and a second hollow structure, the first extension section of the first hollow structure and the first extension section of the second hollow structure are parallel to each other and are spaced apart in a direction from the antenna to the connection point; The two second extending sections of the second hollow structure are located between the two second extending sections of the first hollow structure.

10. The electronic device according to claim 9, characterized in that: The hollow structure further includes a third hollow structure, the first extension section of the second hollow structure and the first extension section of the third hollow structure are parallel to each other and are spaced apart along the direction in which the antenna points to the connection point; The two second extending sections of the third hollow structure are located between the two second extending sections of the second hollow structure.

11. The electronic device according to any one of claims 5 to 10, characterized in that: The second extending section is disposed on a side of the first extending section away from the antenna.

12. The electronic device according to any one of claims 1 to 11, characterized in that: Along the thickness direction of the electronic device, a vertical projection of the region on the bracket where the hollow structure is provided on the shell at least partially overlaps with a vertical projection of the front camera module on the shell.

13. The electronic device according to claim 12, characterized in that: Along the thickness direction of the electronic device, a vertical projection of the area on the bracket where the hollow structure is opened on the shell covers a vertical projection of the front camera module on the shell.

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