terminal device

Abstract

The utility model provides a kind of terminal equipment, belong to electronic technical field.Terminal equipment includes: display component, shell component and cavity antenna;Display component and shell component are connected, and cavity antenna is located in shell component inside;Cavity antenna includes radome and at least one extension cover, and radome is equipped with first opening portion towards the side of inner wall of shell component, and at least one extension cover is equipped with second opening portion towards the side of inner wall of shell component;At least one extension cover is connected with radome, and first opening portion and second opening portion are communicated.The terminal equipment of this embodiment can make up the attenuation of antenna performance caused by the narrowing of black edge of terminal equipment, and ensure the wireless communication performance of terminal equipment.

Description

Technical Field

[0001] This utility model relates to the field of electronic technology, and in particular to a terminal device. Background Technology

[0002] In related technologies, for flat-panel terminal devices with all-metal back covers, the antenna usually adopts a shielded cavity antenna design, using a metal shield as the cavity antenna.

[0003] However, this antenna design has high environmental requirements, especially as the black border becomes narrower and the distance between the antenna and the metal sidewall becomes closer, resulting in increasingly poor antenna performance. Utility Model Content

[0004] This invention provides a terminal device that can solve the problem in related technologies where the distance between the cavity antenna and the metal sidewall becomes shorter, resulting in a deterioration in antenna performance.

[0005] The technical solution is as follows:

[0006] A terminal device, the terminal device comprising: a display component, a housing component, and a cavity antenna;

[0007] The display component and the housing component are connected, and the cavity antenna is located inside the housing component;

[0008] The cavity antenna includes a radiating radome and at least one extended radome. The radiating radome has a first opening on the side facing the inner wall of the housing assembly, and the at least one extended radome has a second opening on the side facing the inner wall of the housing assembly.

[0009] The at least one extended cover is connected to the radiation cover, and the first opening and the second opening are in communication.

[0010] In this embodiment of the terminal device, a cavity antenna is arranged in the housing assembly below the display component. The cavity antenna consists of a radiating radome and at least one extended radome. The second opening of the extended radome can communicate with the first opening of the radiating radome to form a larger radiation aperture. This is beneficial to improving the antenna efficiency and bandwidth of the cavity antenna, thereby compensating for the antenna performance attenuation caused by the narrowing of the black border of the terminal device and ensuring the wireless communication performance of the terminal device.

[0011] In some possible implementations, the distance between the first opening and the inner wall of the housing assembly is the same as the distance between the at least one second opening and the inner wall of the housing assembly.

[0012] In some possible implementations, the radiation shield includes a first radiating plate portion and a first sidewall portion, the first radiating plate portion being arranged parallel to the display assembly, and the first sidewall portion being connected to the remaining edges of the first radiating plate portion except for the first opening portion;

[0013] The at least one extended cover includes a second radiating plate portion and a second sidewall portion, the second radiating plate portion being arranged parallel to the display assembly, and the second sidewall portion being connected to the remaining edges of the second radiating plate portion except for the corresponding second opening portion.

[0014] In some possible implementations, the second radiating portion is at least one of a flat plate shape, a stepped shape, or a trumpet shape.

[0015] In some possible implementations, the terminal device further includes a circuit board located within the housing assembly and arranged parallel to the display assembly;

[0016] The first sidewall portion and the second sidewall portion are respectively welded to the surface of the circuit board facing the display component.

[0017] In some possible implementations, the circuit board has a clearance notch at its edge facing the inner wall of the housing assembly, and the clearance notch coincides with the orthographic projection of the first radiating portion and the second radiating portion on the surface of the circuit board;

[0018] The first sidewall portion and the second sidewall portion are respectively welded to the circuit board surrounding the clearance notch.

[0019] In some possible implementations, the housing assembly includes a bottom shell portion and a side frame portion, the bottom shell portion being arranged parallel to and spaced apart from the non-display surface of the display assembly, and the side frame portion being located at the circumferential edge of the bottom shell portion;

[0020] The circuit board surrounding the clearance gap is electrically connected to the bottom shell via multiple grounding springs.

[0021] In some possible implementations, the housing assembly includes a bottom shell portion and a side frame portion, the bottom shell portion being arranged parallel to and spaced apart from the non-display surface of the display assembly, and the side frame portion being located at the circumferential edge of the bottom shell portion;

[0022] The radiation shield and the at least one extended shield are respectively located between the bottom shell and the display assembly, and the first side wall and the second side wall are electrically connected to the bottom shell.

[0023] In some possible implementations, there are two extended shields, which are located on opposite sides of the radiation shield.

[0024] In some possible implementations, the dimension of the at least one extended cover along the direction perpendicular to the inner wall of the housing assembly is 0.5-1.5 mm;

[0025] And / or,

[0026] The cavity antenna is used to cover the WiFi 5G frequency band. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the terminal device provided in this embodiment of the utility model;

[0029] Figure 2 This is a structural cross-sectional view of the terminal device provided in this embodiment of the utility model;

[0030] Figure 3 This is a structural cross-sectional view of a terminal device provided in another embodiment of the present invention;

[0031] Figure 4 This is an exploded view of the terminal device provided in this embodiment of the utility model;

[0032] Figure 5 This is a structural cross-sectional view of the terminal device provided in this embodiment of the utility model;

[0033] Figure 6 This is a schematic diagram of the cavity antenna provided in an embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram of the cavity antenna provided in another embodiment of the present invention;

[0035] Figure 8 This is a test diagram of the antenna efficiency of the terminal device provided in this embodiment of the utility model;

[0036] Figure 9 This is an antenna bandwidth test diagram of the terminal device provided in this embodiment of the utility model.

[0037] The reference numerals in the figure are respectively:

[0038] 1. Display components;

[0039] 101. Display surface; 102. Non-display surface;

[0040] 2. Housing assembly;

[0041] 21. Bottom shell; 22. Side frame;

[0042] 3. Cavity antenna;

[0043] 31. Radiation shield; 311. First opening; 312. First radiating plate; 313. First sidewall; 32. Extended shield; 321. Second opening; 322. Second radiating plate; 323. Second sidewall;

[0044] 4. Circuit board;

[0045] 41. Avoidance gap; 42. Grounding spring. Detailed Implementation

[0046] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. In the following description, when referring to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this invention. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this invention as detailed in the appended claims.

[0047] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0048] It should be understood that in this utility model, "electrical connection" can be understood as physical contact and electrical conduction between components; it can also be understood as a form of connection between different components in a circuit structure through physical lines that can transmit electrical signals, such as copper foil or wires on a printed circuit board (PCB). "Communication connection" can refer to the transmission of electrical signals, including wireless communication connections and wired communication connections. Wireless communication connections do not require a physical medium and are not a connection relationship that limits the product structure. "Connection" and "connected" can both refer to a mechanical or physical connection relationship, that is, A and B being connected or connected can mean that there are fastening components (such as screws, bolts, rivets, etc.) between A and B, or A and B being in contact with each other and difficult to separate.

[0049] Unless otherwise defined, all technical terms used in the embodiments of this utility model have the same meaning as commonly understood by those skilled in the art.

[0050] In tablet-type terminal devices with all-metal back covers, the exterior design needs to be seamless and without any slots, making antenna stacking quite challenging. Related technologies employ a shielded cavity antenna design, with the mainstream approach using a metal shield as the cavity antenna, soldered to the front of the motherboard. Simultaneously, several metal springs connect the cavity antenna to the back cover via the motherboard's back, ensuring consistent grounding and thus stable antenna performance. However, this design is highly sensitive to environmental conditions, especially the distance from the radiating aperture to the metal sidewalls, which significantly impacts antenna performance.

[0051] With the current demand for increasingly narrow black borders in products, the distance between the shielded antenna and the metal sidewall is getting closer and closer, resulting in increasingly poor antenna performance. How to improve antenna performance while reducing the black border has become a key and difficult problem.

[0052] Therefore, this utility model provides a terminal device that is beneficial to improving the antenna efficiency and bandwidth of the cavity antenna, thereby compensating for the antenna performance attenuation caused by the narrowing of the black border of the terminal device and ensuring the wireless communication performance of the terminal device.

[0053] The technical solution provided by this utility model is applicable to terminal devices that employ one or more of the following communication technologies: Bluetooth (BT) communication technology, Global Positioning System (GPS) communication technology, Wireless Fidelity (WiFi) communication technology, Global System for Mobile Communications (GSM) communication technology, Wideband Code Division Multiple Access (WCDMA) communication technology, Long Term Evolution (LTE) communication technology, 5G communication technology, and other future communication technologies.

[0054] The terminal device in this embodiment of the present invention can be a mobile phone, tablet computer, laptop computer, smart bracelet, smartwatch, smart helmet, smart glasses, etc. Electronic devices can also be cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), handheld devices with wireless communication capabilities, computing devices or other processing devices connected to a wireless modem, in-vehicle devices, electronic devices in 5G networks, or electronic devices in future evolved public land mobile networks (PLMNs), etc. This embodiment of the present invention is not limited to these categories.

[0055] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Here, a tablet computer is used as the terminal device in the description, but this should not be considered a limitation of the technical solution of this utility model.

[0056] Combination Figures 1 to 4 As shown, this embodiment provides a terminal device, which includes a display component 1, a housing component 2, and a cavity antenna 3. The display component 1 and the housing component 2 are connected, and the cavity antenna 3 is located inside the housing component 2.

[0057] The cavity antenna 3 includes a radiating radome 31 and at least one extended radome 32. The radiating radome 31 has a first opening 311 on the side facing the inner wall of the housing assembly 2, and at least one extended radome 32 has a second opening 321 on the side facing the inner wall of the housing assembly 2. At least one extended radome 32 is connected to the radiating radome 31, and the first opening 311 and the second opening 321 are connected.

[0058] In this embodiment of the terminal device, a cavity antenna 3 is arranged in the housing assembly 2 below the display assembly 1. The cavity antenna 3 is composed of a radiating radome 31 and at least one extended radome 32. The second opening 321 of the extended radome 32 can communicate with the first opening 311 of the radiating radome 31 to form a larger radiation aperture. This is beneficial to improve the antenna efficiency and bandwidth of the cavity antenna 3, thereby compensating for the attenuation of antenna performance caused by the narrowing of the black border of the terminal device and ensuring the wireless communication performance of the terminal device.

[0059] Among them, the cavity antenna 3 is an antenna that uses a metal cavity structure to radiate or receive electromagnetic waves. It is a closed or semi-closed cavity made of conductive materials (such as copper or aluminum), and can achieve directional radiation or reception of electromagnetic waves through openings / slits or probes. The cavity antenna 3 has high directivity and strong anti-interference energy.

[0060] In some possible implementations, the terminal device may also include electronic components located inside the cavity, including but not limited to a motherboard, battery, camera, processor, flash, microphone, speaker, etc.

[0061] In some possible implementations, display component 1 can be used to display information input by the user or information provided to the user, as well as various graphical user interfaces of the terminal device, which can be composed of graphics, text, icons, videos, and any combination thereof.

[0062] Display component 1 may include a display panel, optionally configured in the form of a plasma display panel (PDP), a vacuum fluorescent display (VFD), a field emission display (FED), a light-emitting diode (LED), an organic light-emitting diode (OLED), a liquid crystal display (LCD), a micro-electro-mechanical system (DMD), and electroluminance (EL).

[0063] For example, the display panel is covered with a touch-sensitive surface. When the touch-sensitive surface detects a touch operation on or near it, it transmits the information to the processor to determine the type of touch event. The processor then provides corresponding visual output on the display panel according to the type of touch event.

[0064] Combination Figure 2 , Figures 3 to 5 As shown, in some possible embodiments, the distance between the first opening 311 and the inner wall of the housing assembly 2 is the same as the distance between at least one second opening 321 and the inner wall of the housing assembly 2.

[0065] With the above arrangement, the extended cover 32 and the radiating cover 31 can form a complete cavity antenna 3. The openings of the extended cover 32 and the radiating cover 31 are spaced at the same distance from the inner wall of the housing assembly 2, and have the same electromagnetic wave radiation characteristics. Thus, they can be combined to form a larger radiation aperture to achieve the transmission and reception of electromagnetic waves of the same wavelength.

[0066] Combination Figure 4 and Figure 5 As shown, in some possible embodiments, the radiation shield 31 includes a first radiation plate portion 312 and a first sidewall portion 313. The first radiation plate portion 312 is arranged parallel to the display component 1, and the first sidewall portion 313 is connected to the remaining edges of the first radiation plate portion 312 except for the corresponding first opening portion 311.

[0067] At least one extended cover 32 includes a second radiating plate portion 322 and a second sidewall portion 323. The second radiating plate portion 322 is arranged parallel to the display assembly 1, and the second sidewall portion 323 is connected to the remaining edges of the second radiating plate portion 322 except for the corresponding second opening portion 321.

[0068] With the above arrangement, both the radiating cover 31 and the extended cover 32 can form a semi-enclosed cavity structure, and the cavity antenna 3 can realize the transmission and reception of electromagnetic waves.

[0069] Combination Figure 6 and Figure 7 As shown, in some possible embodiments, the second radiating plate portion 322 is at least one of a flat plate shape, a stepped shape, and a trumpet shape.

[0070] When the second radiating portion 322 satisfies the above shape, the second radiating portion 322 can extend the conductive length of the first radiating portion 312, thereby expanding the radiation aperture and improving the radiation performance of the cavity antenna 3.

[0071] Combination Figure 2 and Figure 5 As shown, in some possible embodiments, the terminal device also includes a circuit board 4, which is located inside the housing assembly 2 and arranged parallel to the display assembly 1.

[0072] The first sidewall portion 313 and the second sidewall portion 323 are respectively welded to the surface of the circuit board 4 facing the display component 1.

[0073] In this embodiment, the circuit board 4 is used to weld and connect the first side wall portion 313 and the second side wall portion 323 of the cavity antenna 3, so as to realize the grounding or power supply connection of the cavity antenna 3.

[0074] In some possible implementations, the circuit board 4 includes a printed circuit board (PCB), a flexible printed circuit board (FPC), a rigid-flex board, and so on.

[0075] Combination Figure 2 , Figure 4 and Figure 5 As shown, in some possible embodiments, the edge of the circuit board 4 facing the inner wall of the housing assembly 2 is provided with a clearance notch 41, and the clearance notch 41 coincides with the orthographic projection of the first radiating plate portion 312 and the second radiating plate portion 322 on the surface of the circuit board 4; the first side wall portion 313 and the second side wall portion 323 are respectively welded to the circuit board 4 around the clearance notch 41.

[0076] With the above arrangement, the circuit board 4 within the orthographic projection range of the first radiating plate 312 and the second radiating plate 322 of the cavity antenna 3 is designed to avoid the cavity antenna 3 through the avoidance notch 41, so that the cavity antenna 3 can form a complete semi-enclosed cavity with the direct opposition of the housing assembly 2. The circuit board 4 around the avoidance notch 41 can provide a good assembly environment for the cavity antenna 3, which is conducive to improving the assembly efficiency of the cavity antenna 3.

[0077] Combination Figure 2 As shown, in some possible embodiments, the housing assembly 2 includes a bottom shell portion 21 and a side frame portion 22. The bottom shell portion 21 is arranged parallel to and spaced apart from the non-display surface 102 of the display assembly 1, and the side frame portion 22 is located at the circumferential edge of the bottom shell portion 21.

[0078] The circuit board 4 around the clearance 41 is electrically connected to the bottom shell 21 through multiple grounding springs 42.

[0079] Through the above arrangement, the cavity antenna 3 is electrically connected to the circuit board 4 and multiple grounding springs 42, thereby realizing the grounding of the first sidewall portion 313 and the second sidewall portion 323 of the cavity antenna 3.

[0080] For example, the display component 1 further includes a display surface 101 located on the side of the display component 1 facing away from the bottom housing portion 21.

[0081] In some possible implementations, the circuit board 4 around the clearance notch 41 has multiple metallized holes (in the figure), and the grounding spring 42 is connected to the first sidewall portion 313 and the second sidewall portion 323 respectively through the metallized holes.

[0082] Combination Figure 3 As shown, in some possible embodiments, the housing assembly 2 includes a bottom shell portion 21 and a side frame portion 22. The bottom shell portion 21 is arranged parallel to and spaced apart from the non-display surface 102 of the display assembly 1, and the side frame portion 22 is located at the circumferential edge of the bottom shell portion 21.

[0083] The radiation shield 31 and at least one extension shield 32 are located between the bottom shell 21 and the display assembly 1, respectively, and the first side wall 313 and the second side wall 323 are electrically connected to the bottom shell 21, respectively.

[0084] In this embodiment, the radiation shield 31 and the expansion shield 32 can be directly electrically connected to the bottom shell 21 using the first side wall portion 313 and the second side wall portion 323 respectively, so that the radiation shield 31 and the expansion shield 32 simultaneously form a complete semi-enclosed cavity with the bottom shell 21, realizing the transmission and reception of electromagnetic waves.

[0085] Combination Figure 4 As shown, in some possible implementations, there are two expansion shields 32, which are located on opposite sides of the radiation shield 31.

[0086] In this embodiment, two extended covers 32 are arranged to make full use of the space on both sides of the radiating cover 31 along the inner wall of the shell, thereby expanding the aperture of the cavity antenna 3 on both sides at the same time, which is beneficial to increasing the expansion range of the radiation aperture of the cavity antenna 3.

[0087] Combination Figure 1 and Figure 5 As shown, in some possible embodiments, at least one extended cover 32 has a dimension of 0.5-1.5 mm along the direction perpendicular to the inner wall of the housing assembly 2.

[0088] For example, the dimensions of the extended cover 32 along the direction perpendicular to the inner wall of the housing assembly 2 are, for example, 0.5mm, 0.6mm, 0.8mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, etc.

[0089] Combination Figure 1 and Figure 5 As shown, in some possible implementations, the cavity antenna 3 is used to cover the WiFi 5G band.

[0090] Figure 8 and Figure 9 These are the antenna efficiency test diagram and antenna bandwidth test diagram of the terminal device provided in this embodiment of the present invention. It can be seen from the diagram that the antenna efficiency and bandwidth of the terminal device in this embodiment are significantly improved compared with the prior art.

[0091] It should be noted that, in this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0092] In the description of this specification, the references to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the embodiments or examples that are included in at least one embodiment or example of the present invention.

[0093] The above description is merely an embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A terminal device, characterized in that, The terminal device includes: a display component (1), a housing component (2), and a cavity antenna (3); The display component (1) and the housing component (2) are connected, and the cavity antenna (3) is located inside the housing component (2); The cavity antenna (3) includes a radiating radome (31) and at least one extended radome (32). The radiating radome (31) has a first opening (311) on the side facing the inner wall of the housing assembly (2), and the at least one extended radome (32) has a second opening (321) on the side facing the inner wall of the housing assembly (2). The at least one extended cover (32) is connected to the radiation cover (31), and the first opening (311) and the second opening (321) are in communication.

2. The terminal device according to claim 1, characterized in that, The distance between the first opening (311) and the inner wall of the housing assembly (2) is the same as the distance between the at least one second opening (321) and the inner wall of the housing assembly (2).

3. The terminal device according to claim 1, characterized in that, The radiation shield (31) includes a first radiation plate (312) and a first sidewall (313). The first radiation plate (312) is arranged parallel to the display assembly (1), and the first sidewall (313) is connected to the remaining edges of the first radiation plate (312) except for the first opening (311). The at least one extended cover (32) includes a second radiating plate (322) and a second sidewall (323), the second radiating plate (322) being arranged parallel to the display assembly (1), and the second sidewall (323) being connected to the remaining edges of the second radiating plate (322) except for the corresponding second opening (321).

4. The terminal device according to claim 3, characterized in that, The second radiating plate (322) is at least one of a flat plate shape, a stepped shape, and a trumpet shape.

5. The terminal device according to claim 3, characterized in that, The terminal device also includes a circuit board (4), which is located inside the housing assembly (2) and arranged parallel to the display assembly (1); The first sidewall portion (313) and the second sidewall portion (323) are respectively welded to the surface of the circuit board (4) facing the display component (1).

6. The terminal device according to claim 5, characterized in that, The circuit board (4) has a clearance notch (41) on the edge facing the inner wall of the housing assembly (2), and the clearance notch (41) coincides with the orthographic projection of the first radiating plate (312) and the second radiating plate (322) on the surface of the circuit board (4). The first sidewall portion (313) and the second sidewall portion (323) are respectively welded to the circuit board (4) around the clearance notch (41).

7. The terminal device according to claim 6, characterized in that, The housing assembly (2) includes a bottom shell portion (21) and a side frame portion (22). The bottom shell portion (21) is arranged parallel to and spaced apart from the non-display surface (102) of the display assembly (1). The side frame portion (22) is located at the circumferential edge of the bottom shell portion (21). The circuit board (4) around the clearance gap (41) is electrically connected to the bottom shell (21) via a plurality of grounding springs (42).

8. The terminal device according to claim 3, characterized in that, The housing assembly (2) includes a bottom shell portion (21) and a side frame portion (22). The bottom shell portion (21) is arranged parallel to and spaced apart from the non-display surface (102) of the display assembly (1). The side frame portion (22) is located at the circumferential edge of the bottom shell portion (21). The radiation shield (31) and the at least one extension shield (32) are located between the bottom shell (21) and the display assembly (1), respectively, and the first side wall (313) and the second side wall (323) are electrically connected to the bottom shell (21).

9. The terminal device according to claim 1, characterized in that, There are two extended covers (32), and the two extended covers (32) are located on opposite sides of the radiation cover (31).

10. The terminal device according to any one of claims 1 to 9, characterized in that, The dimension of the at least one extended cover (32) along the direction perpendicular to the inner wall of the housing assembly (2) is 0.5-1.5 mm; And / or, The cavity antenna (3) is used to cover the WiFi 5G frequency band.

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