Electronic device

Abstract

The application discloses an electronic device, comprising a frame, a display screen, an antenna assembly and a conductive element. The display screen is arranged on the frame; the antenna assembly is arranged between the frame and the display screen; the conductive element is arranged between the frame and the display screen, and the antenna assembly and the conductive element are arranged in a first direction; the conductive element is electrically connected with the frame and the display screen respectively, and the conductive element is grounded. The electronic device provided by the application can realize the grounding of the frame and the display screen by electrically connecting the conductive element with the frame and the display screen and grounding the conductive element, thereby reducing the electromagnetic interference of the frame and the display screen on the antenna assembly in the powered state and ensuring the communication function of the antenna assembly.

Description

Technical Field

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

[0002] In existing electronic devices, the antenna module is an important component.

[0003] Antenna modules are typically mounted inside the display screen, located at the top and / or bottom of the electronic device's display. In practical use, it has been found that the display screen generates a magnetic field when powered on, which can cause electromagnetic interference to the antenna module, thus affecting its communication functionality. Summary of the Invention

[0004] This application provides an electronic device that can effectively reduce electromagnetic interference from the display screen to the antenna assembly, thus ensuring the communication function of the antenna assembly.

[0005] This application provides an electronic device, which includes a frame, a display screen, an antenna assembly, and conductive elements.

[0006] The display screen is mounted on the frame;

[0007] The antenna assembly is located between the frame and the display screen;

[0008] A conductive element is disposed between the frame and the display screen, and the conductive element and the antenna assembly are arranged along a first direction. The conductive element is electrically connected to the frame and the display screen respectively, and the conductive element is grounded.

[0009] The electronic device provided in this application embodiment can achieve grounding of the frame and display screen by setting conductive elements to be electrically connected to the frame and display screen respectively, and grounding the conductive elements, thereby reducing the electromagnetic interference generated by the frame and display screen to the antenna assembly when powered on, and ensuring the communication function of the antenna assembly. Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the structure of an electronic device according to some embodiments of this application;

[0012] Figure 2 This is a schematic diagram of the structure of an electronic device according to other embodiments of this application;

[0013] Figure 3This is a graph showing the electromagnetic wave attenuation curves between the display screen and the frame in existing electronic devices under different electrical connection states.

[0014] Figure 4 The diagram shows the electromagnetic wave attenuation curves of the electronic device in this application and the existing electronic device when both are in an electrically connected state between the display screen and the frame.

[0015] Explanation of icon numbers:

[0016] 1. Frame; 2. Display screen; 21. Frame; 31. First antenna assembly; 32. Second antenna assembly; 41. First conductive element; 42. Second conductive element;

[0017] L, the dimension of the portion in the first direction where the projection of the first conductive element along the second direction coincides with the projection of the second conductive element along the second direction;

[0018] W, the distance between the first conductive element and the second conductive element along the second direction;

[0019] D1, along the second direction, the distance between the first conductive element and the edge of the display screen that is closer to it;

[0020] D2, along the second direction, the distance between the edge of the second conductive element and the edge of the display screen that is closest to it;

[0021] C. The distance between the two edges of the display screen along the second direction;

[0022] t1, along the second direction, the dimension of the first conductive element;

[0023] t2, along the second direction, the dimensions of the second conductive element;

[0024] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0025] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0026] The features of the terms "first" and "second" in the description and claims of this application may explicitly or implicitly include one or more of such features. In the description of this application, unless otherwise specified, the meaning of "plural" is two or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0027] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "middle", "rear", "left", "right", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application.

[0028] In the description of this application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] To solve the problem that the magnetic field generated after the display screen is powered on in the related art will cause electromagnetic interference to the antenna module, thereby affecting the communication function of the antenna module, one way is to set a shielding film or conductive cloth on the inner side of the display screen to shield the electromagnetic interference caused by the magnetic field generated after the display screen is powered on to the antenna module. However, the cost of the shielding film or conductive cloth is relatively high, and the requirements for the display screen are also relatively high, which directly leads to an increase in the cost of the electronic device.

[0030] Another way is to set conductive foam on the inner side of the display screen to achieve grounding of the display screen, so as to suppress the electromagnetic interference caused by the magnetic field generated after the display screen is powered on to the antenna module. However, when the existing conductive foam is set, it is only roughly distributed around the display screen, and the number of conductive foams, the position of the conductive foam relative to the display screen, and the specific parameters of the conductive foam are not specifically limited, resulting in unreliable and uncontrollable suppression effects of the conductive foam on the electromagnetic interference caused by the magnetic field generated after the display screen is powered on to the antenna module. Therefore, although conductive foam is used in some existing electronic devices, there is still a problem that the magnetic field generated after the display screen is powered on crosstalks to the position of the antenna module to generate electromagnetic interference to the antenna module, thereby affecting the communication function of the antenna module.

[0031] Therefore, this application addresses the aforementioned technical problems by analyzing the cavity characteristics between the display screen and the mid-frame of the electronic device. It proposes an electronic device that optimizes the quantity of conductive foam, the position of the conductive foam relative to the display screen, and the specific parameters of the conductive foam. By rationally arranging a small amount of conductive foam, it achieves good suppression of electromagnetic interference caused by the magnetic field generated by the display screen on the antenna module, ensures the communication function of the antenna module, and reduces the cost of using conductive foam.

[0032] like Figure 1 and Figure 2 As shown in the figure, this application provides an electronic device, which includes a frame 1, a display screen 2, an antenna assembly, and conductive elements.

[0033] Frame 1 is the mid-frame of the electronic device, made of metal and conductive.

[0034] The display screen 2 has a bezel 21 around its perimeter. The bezel 21 is made of metal and is conductive.

[0035] The display screen 2 is mounted on the frame 1 via the frame 21, and a part of the frame 1 and the display screen 2 are positioned opposite each other along the third direction Z and spaced apart from each other, forming a cavity between the display screen 2 and the frame 1; the antenna assembly is located in the cavity between the frame 1 and the display screen 2; since the frame 21 is made of metal and is conductive, after the display screen 2 is mounted on the frame 1 via the frame 21, the display screen 2 and the frame 1 are electrically connected, which will generate electromagnetic interference in the cavity, thereby affecting the communication function of the antenna assembly.

[0036] The conductive element is located between the frame 1 and the display screen 2, and the antenna assembly and the conductive element are arranged at intervals along the first direction X. The conductive element is electrically connected to the frame 1 and the display screen 2 respectively, and the conductive element is grounded. By setting the conductive element to be grounded, the frame 1 and the display screen 2 are grounded, which can suppress or eliminate electromagnetic interference between the frame 1 and the display screen 2, thereby ensuring the communication function of the antenna assembly.

[0037] like Figure 1 and Figure 2As shown in the embodiment of this application, the electronic device includes a first conductive element 41 and a second conductive element 42. Both the first conductive element 41 and the second conductive element 42 are strip-shaped structures extending along a first direction X, and are spaced apart along a second direction Y. By setting the first conductive element 41 and the second conductive element 42, electromagnetic interference at various locations between the display screen 2 and the frame 1 of most electronic devices can be suppressed. The uniform arrangement of the first conductive element 41 and the second conductive element 42 between the display screen 2 and the frame 1 can effectively improve the stability of battery interference suppression. It should be noted that the number of conductive elements can also be other, and the arrangement of the conductive elements between the display screen 2 and the frame 1 can be flexibly adjusted according to the specific size of the electronic device, as long as the electromagnetic interference suppression effect of the conductive elements is satisfied and the communication function of the antenna assembly is guaranteed.

[0038] An angle is formed between the first direction X and the second direction Y. An angle is formed between the plane defined by the first direction X and the second direction Y and the third direction Z.

[0039] Optionally, the first direction X is the vertical direction of the electronic device in use, the second direction Y is the horizontal direction of the electronic device in use, and the third direction Z is the direction perpendicular to the display screen 2 of the electronic device. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other.

[0040] like Figure 3 As shown, please refer to Figure 3 Curve 101 in the figure shows that when the display screen 2 and the frame 1 are not electrically connected, the radio frequency energy transmission between them is mainly in TEM (lateral electromagnetic) mode, which is a straight-through form.

[0041] Please refer to curve 102 in the figure. When the display screen 2 is electrically connected to the frame 1, the radio frequency energy transmission between the two is mainly in TE (lateral electrical) transmission mode, which is in the form of high-pass.

[0042] In this embodiment, since: the display screen 2 and the frame 1 are electrically connected; along the first direction X, the distance between the first conductive element and the second conductive element is an important factor affecting the cutoff frequency of radio frequency energy transmission between the display screen 2 and the frame 1, and the distance between the first conductive element and the second conductive element in the first direction can be determined based on the cutoff frequency of radio frequency energy transmission between the display screen 2 and the frame 1; along the second direction Y, the dimensions of the first conductive element and the second conductive element are important factors affecting the attenuation of the radio frequency energy transmission medium frequency band between the display screen 2 and the frame 1. Therefore, in order to meet the requirements for suppressing electromagnetic interference, the conductive element must meet the following conditions.

[0043] like Figure 1 and Figure 2As shown in the embodiment of this application, the electronic device has a distance of W between the first conductive element 41 and the second conductive element 42 along the second direction Y, where 32mm ≥ W ≥ 40mm. The electromagnetic interference generated between the display screen 2 and the frame 1 has higher energy at frequencies below 3.5GHz and lower energy at frequencies above 3.5GHz. The distance between the first conductive element 41 and the second conductive element 42, satisfying 32mm ≥ W ≥ 40mm, effectively suppresses electromagnetic signals with frequencies below 3.5GHz, thereby suppressing electromagnetic interference and ensuring the communication function of the antenna.

[0044] like Figure 1 and Figure 2 As shown in the embodiment of this application, the electronic device provided has the projections of the first conductive element 41 and the second conductive element 42 at least partially overlapping along the second direction Y.

[0045] Optionally, the portion of the projection of the first conductive element 41 along the second direction Y that overlaps with the projection of the second conductive element 42 along the second direction Y has a dimension of L in the first direction X, where L ≥ 40 mm, to ensure the attenuation of the electromagnetic signal and thus ensure the suppression effect on electromagnetic interference.

[0046] Optionally, along the second direction Y, the projections of the first conductive element 41 and the second conductive element 42 completely overlap, so as to meet the above-mentioned size requirements while minimizing the size of the first conductive element 41 and the second conductive element 42, thereby reducing the manufacturing cost of the first conductive element 41 and the space occupied during installation.

[0047] like Figure 1 and Figure 2 As shown in the embodiment of this application, the electronic device provided has a distance of D1 between the first conductive element 41 and the edge of the display screen 2 that is closer to each other along the second direction Y, and D1≤W / 2.

[0048] Along the second direction Y, the distance between the edge of the second conductive element 42 that is relatively close to the display screen 2 is D2, and D2≤W / 2.

[0049] Along the second direction Y, the size of the electronic device is C, the size of the first conductive element 41 is t1, and the size of the second conductive element 42 is t2; where C = W + D1 + D2 + t1 + t2, and the unit is mm.

[0050] When the first conductive element 41 and the second conductive element 42 meet the above-mentioned size constraints, electronic interference can be effectively suppressed, thereby ensuring the communication function of the antenna.

[0051] Optionally, if the size of the electronic device along the second direction Y is large, the size t1 of the first conductive element 41 along the second direction Y and / or the size t2 of the second conductive element 42 along the second direction Y can be adjusted so that the distance W between the first conductive element 41 and the second conductive element 42, the distance D1 between the closer edges of the first conductive element 41 and the display screen 2, and the distance D2 between the closer edges of the second conductive element 42 and the display screen 2 satisfy the above-mentioned constraint dimensions.

[0052] like Figure 4 As shown, curve 103 is the electromagnetic wave attenuation curve of the electronic device provided in this application embodiment when it is electrically connected to the display screen and the frame; curve 104 is the electromagnetic wave attenuation curve of a conventional electronic device when it is electrically connected to the display screen and the frame. In the electronic device provided in this application, the electromagnetic interference caused by the display screen 2 and the frame 1 to the antenna assembly can be effectively suppressed.

[0053] The electronic device provided in this application embodiment includes conductive foam as the conductive element. The conductive foam has good conductivity and elasticity, enabling it to conduct electricity and support the display screen 2 without damaging the display screen 2 and / or the frame 1.

[0054] The electronic device provided in this application embodiment includes an antenna assembly comprising a first antenna assembly 31 and a second antenna assembly 32. The first antenna assembly 31 and the second antenna assembly 32 are respectively disposed on both sides of the display screen 2 along the first direction X, and a conductive element is located between the first antenna assembly 31 and the second antenna assembly 32. By setting the first antenna assembly 31 and the second antenna assembly 32, the communication function of the electronic device can be effectively improved.

[0055] Optionally, along the first direction X, the size of the conductive element is less than or equal to the distance between the first antenna assembly 31 and the second antenna assembly 32. This allows the first antenna assembly 31, the conductive element, and the second antenna assembly 32 to be sequentially arranged between the display screen 2 and the frame 1 along the first direction X.

[0056] Optionally, along the first direction X, the distance between the conductive element and the first antenna assembly 31, and between the conductive element and the second antenna assembly 32, is greater than or equal to 10 mm. This is to ensure that the conductive element is spaced apart from the first antenna assembly 31 and the second antenna assembly 32, thus preventing the conductive element from causing electromagnetic interference to the first antenna assembly 31 and / or the second antenna assembly 32.

[0057] The electronic device provided in this application embodiment can achieve grounding of the frame and display screen by setting conductive elements to be electrically connected to the frame and display screen respectively, and grounding the conductive elements, thereby reducing the electromagnetic interference generated by the frame and display screen to the antenna assembly when powered on, and ensuring the communication function of the antenna assembly.

[0058] The above description is merely a specific implementation of this application. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the protection scope of this application.

Claims

1. An electronic device, characterized in that, The electronic device includes: Frame; The display screen is mounted on the frame. An antenna assembly is disposed between the frame and the display screen; A conductive element is disposed between the frame and the display screen, and the antenna assembly and the conductive element are spaced apart along a first direction. The conductive element is electrically connected to the frame and the display screen respectively, and the conductive element is grounded. The conductive element includes a first conductive element and a second conductive element. Both the first conductive element and the second conductive element are strip-shaped structures extending along the first direction, and the first conductive element and the second conductive element are spaced apart along the second direction. Along the second direction, the projections of the first conductive element and the second conductive element at least partially overlap; Along the second direction, the distance between the first conductive element and the second conductive element is W, and 32mm ≥ W ≥ 40mm; An angle is formed between the first direction and the second direction; the first direction is the up-down direction of the electronic device in use, and the second direction is the left-right direction of the electronic device in use.

2. The electronic device according to claim 1, characterized in that, The dimension of the overlapping portion of the projections of the first conductive element and the second conductive element along the second direction in the first direction is L, where L≥40mm.

3. The electronic device according to claim 1, characterized in that, Along the second direction, the distance between the first conductive element and the edge of the display screen that is closer to it is D1, and D1≤W / 2; Along the second direction, the distance between the second conductive element and the edge of the display screen that is relatively close is D2, and D2≤W / 2.

4. The electronic device according to claim 3, characterized in that, Along the second direction, the distance between the two edges of the display screen is C, the size of the first conductive element is t1, and the size of the second conductive element is t2; Where C = W + D1 + D2 + t1 + t2, the unit is mm.

5. The electronic device according to claim 1, characterized in that, The antenna assembly includes a first antenna assembly and a second antenna assembly. The first antenna assembly and the second antenna assembly are respectively disposed on both sides of the display screen along the first direction, and the conductive element is located between the first antenna assembly and the second antenna assembly.

6. The electronic device according to claim 5, characterized in that, Along the first direction, the size of the conductive element is less than or equal to the distance between the first antenna assembly and the second antenna assembly.

7. The electronic device according to claim 5, characterized in that, Along the first direction, the distance between the conductive element and the first antenna assembly, and between the conductive element and the second antenna assembly, is greater than or equal to 10 mm.

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