Antenna device and electronic equipment

Abstract

The present application provides an antenna device and an electronic device. The antenna device includes: a circuit board, provided with at least one signal source; a metal frame, provided with at least one antenna end. A locking piece, the locking piece passes through the circuit board and is locked and connected to the metal frame; each of the signal sources is communicatively connected to the corresponding antenna end through the locking piece. The circuit board is locked to the metal frame through the locking piece, so that the antenna end of the metal frame and the signal source on the circuit board are communicatively connected through the locking piece, and the signal transmission reliability is high. The locking piece plays a role in positioning and installation, and also serves as a part of the antenna component. The circuit board and the metal frame are easy to disassemble and assemble, and the signal transmission stability between the antenna end and the signal source is good. The metal frame can be provided with one or more antenna ends to realize the stacking design of the antenna, improve the isolation of the antenna end, and reduce signal interference.

Description

Technical Field

[0001] The present application belongs to the field of communication technology and relates to an antenna device and an electronic device. Background Art

[0002] Metal frames are increasingly used in electronic devices, particularly mobile devices like smartphones, due to their excellent plasticity and metallic texture. However, mobile devices primarily utilize cellular communication bands like 4G, which have a narrow frequency range and a relatively simple product form factor, limiting the choice of slot locations and feed points in metal frames.

[0003] An antenna is provided on the metal frame and connected to the mobile terminal's control assembly for receiving and transmitting corresponding radio frequency signals. In related art, the antenna and control assembly are connected via a spring clip, with one end of the spring clip fixed to the control assembly and the other end elastically abutting a predetermined position on the metal frame. Alternatively, the antenna and control assembly are connected via a feeder cable to achieve communication between the two.

[0004] However, using elastic deformation of springs to connect the antenna and control components can lead to reliability issues such as poor contact, high signal loss, and low contact position adjustment accuracy. Welding feeders can also lead to difficulties in assembly, increased structural complexity, and high processing costs.

[0005] In addition, the metal frame of the mobile terminal is used to set the antenna end, and there needs to be sufficient clearance between it and the control components and display components, making it difficult to arrange multi-band antennas such as Zigbee, Sub1g, and WIFI to coexist, and it is difficult to solve problems such as interference between multiple antennas. Summary of the Invention

[0006] In view of this, the present application provides an antenna device and an electronic device.

[0007] Specifically, this application is implemented through the following technical solutions:

[0008] In a first aspect, the present application discloses an antenna device, comprising:

[0009] A circuit board is provided with at least one signal source;

[0010] A metal frame having at least one antenna end;

[0011] a locking piece, the locking piece passing through the circuit board and being locked and connected to the metal frame;

[0012] Each of the signal sources is communicatively connected to the corresponding antenna end through the locking member.

[0013] Optionally, the circuit board includes a contact portion corresponding to each signal source and a mounting hole provided at the contact portion, the locking piece passes through the mounting hole and is locked to the metal frame, and the contact portion is electrically connected to the metal frame through the locking piece; or the contact portion is attached to the metal frame and electrically connected to the metal frame.

[0014] Optionally, the circuit board further includes an adjustment component, and the contact portion is electrically connected to the signal source through the adjustment component.

[0015] Optionally, the metal frame includes a fixing portion corresponding to each antenna end, and the locking member is connected to the fixing portion.

[0016] Optionally, when the metal frame includes two or more antenna ends, the operating frequency bands of the antenna ends are the same or different.

[0017] Optionally, the metal frame includes a first side wall, a second side wall arranged opposite to the first side wall, and a top wall connecting the first side wall and the second side wall, and at least one of the first side wall, the second side wall and the top wall is provided with an antenna end.

[0018] Optionally, the antenna end is set to a long-wave radiator in the first working frequency band range or a short-wave radiator in the second working frequency band range, the working frequency of the long-wave radiator is lower than the working frequency of the short-wave radiator, and the first side wall is provided with at least one long-wave radiator or short-wave radiator; and / or, the second side wall is provided with at least one long-wave radiator or short-wave radiator; and / or, the top wall is provided with at least one long-wave radiator or short-wave radiator.

[0019] Optionally, the top wall is provided with at least one short-wave radiator, which is communicatively connected to a signal source; or, the second side wall is provided with a short-wave radiator, and the short-wave radiator on the top wall is coupled with the short-wave radiator on the second side wall to form a combined radiator.

[0020] Optionally, the first side wall is provided with a first spacing groove. When a long-wave radiator is provided on the first side wall and the long-wave radiator extends from the first side wall to the top wall, the first spacing groove separates the long-wave radiator into two parts.

[0021] Optionally, the long-wave radiator extends from the first side wall to the top wall, and / or the long-wave radiator extends from the second side wall to the top wall.

[0022] Optionally, the top wall is provided with two short-wave radiators distributed at intervals, and each of the short-wave radiators is connected to the circuit board via a corresponding locking member.

[0023] Optionally, the antenna device further includes a display module, the display module is provided with a metal shell, and the metal shell is conductively connected to the circuit board.

[0024] Optionally, the antenna device further includes a conductive member, which conductively connects the metal housing and the circuit board.

[0025] Optionally, the connection impedance between the metal frame and the circuit board is less than or equal to 1 ohm.

[0026] According to a second aspect of the present application, an electronic device is disclosed, including a device body and the antenna device as described above, wherein the antenna device is mounted on the device body.

[0027] The technical solutions provided by the embodiments of the present application may have the following beneficial effects:

[0028] The circuit board is locked to the metal frame with a locking mechanism, allowing the metal frame's antenna to communicate with the circuit board's signal source through the locking mechanism, ensuring highly reliable signal transmission. The locking mechanism serves both as a positioning mechanism and as an integral component of the antenna, facilitating assembly and disassembly of the circuit board and the metal frame, while ensuring stable signal transmission between the antenna and the signal source. The metal frame can be equipped with one or more antenna terminals, enabling a stacked antenna design and improving antenna isolation, minimizing signal interference. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of an antenna device in which a long-wave radiator is arranged on the top wall and short-wave radiators are arranged on the first side wall and the second side wall, shown in an exemplary embodiment of the present application.

[0030] Figure 2 It is a structural schematic diagram showing an exemplary embodiment of the present application in which two short-wave radiators are arranged on the top wall, a short-wave radiator is arranged on the first side wall, and a short-wave radiator is arranged on the second side wall.

[0031] Figure 3 This is a structural diagram showing an exemplary embodiment of the present application in which two short-wave radiators are arranged on the top wall, a long-wave radiator is arranged on the first side wall, and a short-wave radiator is arranged on the second side wall.

[0032] Figure 4 It is a structural schematic diagram of an antenna device in which a short-wave radiator is arranged on the top wall and long-wave radiators are arranged on the first side wall and the second side wall, shown in an exemplary embodiment of the present application.

[0033] Figure 5 1 is a schematic structural diagram of an antenna device according to an exemplary embodiment of the present application.

[0034] Figure 61 is a schematic cross-sectional structural diagram of an antenna device according to an exemplary embodiment of the present application.

[0035] In the figure, there is a metal frame 10; an antenna end 11; a short-wave radiator 111; a long-wave radiator 112; a top wall 12; a second side wall 13; a first side wall 14; a second spacing groove 15; a first spacing groove 16; a fixing portion 17; a circuit board 20; a signal source 21; a contact portion 22; a mounting hole 23; an adjustment component 24; a locking member 30; a display module 40; a metal housing 41; a display screen 42; and a conductive member 50. DETAILED DESCRIPTION

[0036] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0037] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. As used in this application and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0038] It should be understood that although the terms first, second, third, etc. may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0039] like Figure 1 As shown, in one embodiment, the antenna device includes: a circuit board 20, a metal frame 10, and a locking member 30. The circuit board 20 is provided with at least one signal source 21, and the metal frame 10 is provided with at least one antenna terminal 11. The locking member 30 penetrates the circuit board 20 and is locked to the metal frame 10. Each signal source 21 is communicatively connected to the corresponding antenna terminal 11 through the locking member 30.

[0040] The circuit board 20 is provided with one or more signal sources 21, and each signal source 21 outputs or receives the same or different frequency bands. Accordingly, an antenna terminal 11 corresponding to the signal source 21 is provided on the metal frame 10. The antenna terminal 11 is communicatively connected with the signal source 21 to achieve signal transmission with good transmission effect. The metal frame 10 can be provided with multiple antenna terminals 11 to realize a stacked antenna design, which can improve the isolation between the antenna terminals 11 and reduce signal interference. The locking member 30 is made of a conductive material, such as a metal material. In an optional embodiment, the locking member 30 can be set as a fastener, such as the locking member 30 is set as a fastener such as a screw.

[0041] In an optional embodiment, three signal sources 21 are arranged at intervals on the circuit board 20, and correspondingly, three antenna terminals 11 are provided on the metal frame 10, each antenna terminal 11 corresponding to a signal source 21. The signal source 21 controls the antenna terminal 11 to output a signal of a corresponding frequency band. For example, at least one signal source 21 is in the operating frequency band of WiFi (Wireless Fidelity), and the operating frequency band of the antenna terminal 11 is 2.4 GHz and 5 GHz. At least one signal source 21 is in the operating frequency band of Zigbee, and the operating frequency band is 2.4 GHz. At least one signal source 21 is in the operating frequency band of Sub-1G, and the operating frequency band is 433 MHz, 868 MHz, and 915 MHz.

[0042] The locking member 30 passes through the circuit board 20 and is removably connected to the metal frame 10, locking the circuit board 20 in a predetermined position relative to the metal frame 10. Simultaneously, the circuit board 20 is locked to the metal frame 10 via the locking member 30, enabling communication between the antenna terminal 11 of the metal frame 10 and the signal source 21 on the circuit board 20 via the locking member 30, resulting in highly reliable signal transmission. The metal frame 10 and circuit board 20 are connected via the locking member 30, which serves both as a positioning and mounting mechanism and as a component of the antenna. This facilitates assembly and disassembly of the circuit board 20 and metal frame 10, and ensures stable signal transmission between the antenna terminal 11 and the signal source 21. The circuit board 20 is directly locked and electrically connected to the metal frame 10 via the locking member 30, achieving high positioning accuracy and easy assembly. Furthermore, the circuit board 20 and metal frame 10 have corresponding conductive structures and are connected via the locking member 30. Accordingly, relative to the antenna terminal 11 in the metal frame 10 when in operation, the circuit board 20 and a portion of the metal frame 10 form a portion of the antenna's radiation ground, ensuring stable signal processing.

[0043] like Figure 1 and Figure 6 As shown, in one embodiment, the circuit board 20 includes a contact portion 22 corresponding to each signal source 21 and a mounting hole 23 provided at the contact portion 22 , and the locking member 30 passes through the mounting hole 23 and is locked to the metal frame 10 .

[0044] Mounting holes 23 are provided at corresponding locations on circuit board 20. Mounting holes 23 are used to locate the circuit board 20 at the predetermined connection position with metal frame 10. Locking members 30 pass through mounting holes 23 and lock into place with metal frame 10, ensuring a tight fit between the surface of circuit board 20 and metal frame 10. At least a portion of locking member 30 is inserted into metal frame 10 and electrically connected thereto.

[0045] A contact portion 22 is provided on the circuit board 20. The contact portion 22 is located around the mounting hole 23 or the mounting hole 23 is opened at the contact portion 22. In an optional embodiment, the contact portion 22 is electrically connected to the metal frame 10 via a locking member 30. The contact portion 22 is provided on the surface of the circuit board 20 and surrounds the mounting hole 23. The end of the locking member 30 is attached to the surface of the circuit board 20 and is electrically connected to the contact portion 22. Optionally, the contact portion 22 is provided on the inner wall surface of the mounting hole 23. The locking member 30 passes through the mounting hole 23 and is attached to the inner wall surface of the mounting hole 23, so that the locking member 30 is electrically connected to the contact portion 22. In an optional embodiment, the contact portion 22 is attached to the metal frame 10 and is electrically connected to the metal frame 10. The contact portion 22 is provided on the surface of the circuit board 20 , and the locking member 30 locks the circuit board 20 to the metal frame 10 . Accordingly, the contact portion 22 is directly electrically connected to the metal frame 10 , resulting in good contact and stable signal transmission.

[0046] In one embodiment, the circuit board 20 further includes an adjustment component 24, through which the contact portion 22 is electrically connected to the signal source 21. The adjustment component 24 is provided on the circuit board 20 and is used to connect the contact portion 22 to the signal source 21. The adjustment component 24 can adjust the operating frequency band and operating performance of the antenna terminal 11, making it easy to adjust the signal parameters of the signal source 21. Optionally, the adjustment component 24 comprises a resistor, capacitor, or other frequency modulation circuitry provided on the circuit board 20. The circuit board 20 includes the adjustment component 24 to adjust the frequency band output by the antenna terminal 11, providing excellent adjustment flexibility. The adjustment component 24 also allows for combining multiple antenna terminals 11 to form different output frequency bands, expanding the antenna's application range. In an optional embodiment, when more than two antenna terminals 11 are provided, the adjustment component 24 is used to improve the isolation between the antenna terminals 11 and enhance their operating efficiency. The circuit board 20 is connected to the metal frame 10 via a locking member 30. This locking member 30 allows the antenna terminals 11 to be locked when in operation, thereby improving the isolation between the multiple antenna terminals 11.

[0047] In one embodiment, the metal frame 10 includes a fixing portion 17 corresponding to each antenna end 11, and the locking member 30 is connected to the fixing portion 17. The metal frame 10 is provided with a fixing portion 17. Optionally, the fixing portion 17 is a raised structure protruding from the surface of the metal frame 10, such as a columnar protruding mounting post, a mounting boss, etc. Optionally, the fixing portion 17 is a mounting platform provided on the metal frame 10, and the circuit board 20 is attached to the mounting platform. The fixing portion 17 is provided with a threaded hole, and the locking member 30 passes through the circuit board 20 and is locked to the threaded hole, so that the signal source 21 on the circuit board 20 is communicatively connected with the corresponding antenna end 11 on the metal frame 10.

[0048] The fixing portion 17 is integrally formed with the metal frame 10, ensuring smooth signal transmission. The antenna terminal 11 is located on the metal frame 10 and corresponds to the fixing portion 17. The circuit board 20 abuts the fixing portion 17 and is electrically connected to the fixing portion 17 via the locking member 30. The locking member 30 maintains close contact with the fixing portion 17, ensuring effective signal transmission.

[0049] In an optional embodiment, the connection impedance between the metal frame 10 and the circuit board 20 is less than or equal to 1 ohm. The metal frame 10 and the circuit board 20 are connected and electrically conductively connected via a locking member 30. This low connection impedance between the metal frame 10 and the circuit board 20 improves signal transmission strength. If the locking member 30 is a metal member, its screw connection to the metal frame 10 provides a large contact area. Adjustment assembly 24 between the metal frame 10 and the circuit board 20 can be adjusted to a maximum connection impedance of 0.5 ohm, 1 ohm, or the like.

[0050] like Figures 1 to 4 As shown, in one embodiment, when the metal frame 10 includes two or more antenna ends 11 , the working frequency bands of the antenna ends 11 are the same or different.

[0051] The antenna terminals 11 are spaced apart on the metal frame 10 and are used to transmit or receive signals of corresponding frequency bands. The metal frame 10 may be provided with one antenna terminal 11, and accordingly, it may receive signals of the frequency band corresponding to the antenna terminal 11. When two or more antenna terminals 11 are provided on the metal frame 10, each antenna terminal 11 may be able to receive or transmit signals of the corresponding frequency band. In an optional embodiment, the working frequency bands of some antenna terminals 11 may be the same. For example, two antenna terminals 11 are provided on the metal frame 10, and the two antenna terminals 11 may be adjusted to WIFI dual-band radiation. In an optional embodiment, the working frequency bands of the antenna terminals 11 are different. Three antenna terminals 11 are provided on the metal frame 10, and the working frequency bands of each antenna terminal 11 are different.

[0052] The shape of the metal frame 10 can be adjusted according to the appearance of different products, such as the metal frame 10 being approximately rectangular, approximately polygonal with large rounded corners, or other shapes. The following is an example of a metal frame 10 in the shape of a rectangular frame.

[0053] In one embodiment, the metal frame 10 includes a first side wall 14, a second side wall 13 arranged opposite to the first side wall 14, and a top wall 12 connecting the first side wall 14 and the second side wall 13, and the antenna end 11 is set on at least one of the first side wall 14, the second side wall 13 and the top wall 12.

[0054] The first side wall 14, the second side wall 13, and the top wall 12 form a substantially U-shaped structure, with the antenna end 11 disposed on each of the first side wall 14, the second side wall 13, and the top wall 12. In an alternative embodiment, one antenna end 11 is disposed on only one of the first side wall 14, the second side wall 13, and the top wall 12. Alternatively, one antenna end 11 may span two intersecting side walls of the metal frame 10, such as one antenna end 11 disposed on the first side wall 14 and extending to the top wall 12, or one antenna end 11 disposed on the second side wall 13 and extending to the top wall 12.

[0055] In an optional embodiment, there are two or more antenna ends 11, wherein the antenna end 11 is only located on one of the first side wall 14, the second side wall 13, and the top wall 12. Alternatively, the antenna end 11 is located on at least one of the first side wall 14, the second side wall 13, and the top wall 12. For example, there are two antenna ends 11, with the two antenna ends 11 being located on the first side wall 14 and the top wall 12, respectively; or the two antenna ends 11 being located on the second side wall 13 and the top wall 12, respectively; or the two antenna ends 11 being located on the first side wall 14 and the second side wall 13, respectively. Any antenna end 11 can span two intersecting portions of the metal frame 10 or be located on only one side wall.

[0056] In an optional embodiment, antenna end 11 is configured as a longwave radiator 112 operating within a first operating frequency range or a shortwave radiator 111 operating within a second operating frequency range, wherein the operating frequency of longwave radiator 112 is lower than the operating frequency of shortwave radiator 111. Longwave radiator 112 and shortwave radiator 111 are antenna structures operating in different frequency bands, enabling the antenna device to receive and transmit a wider range of signals and have a wider range of applications.

[0057] like Figures 1 to 4As shown, in one embodiment, the first side wall 14 is provided with at least one long-wave radiator 112 or short-wave radiator 111. In an alternative embodiment, the second side wall 13 is provided with at least one long-wave radiator 112 or short-wave radiator 111. In an alternative embodiment, the top wall 12 is provided with at least one long-wave radiator 112 or short-wave radiator 111.

[0058] The antenna end 11 is arranged at the side wall of the metal frame 10, wherein the first side wall 14, the second side wall 13 and the top wall 12 can be provided with corresponding long-wave radiators 112 and / or short-wave radiators 111, and the layout position and quantity of the long-wave radiators 112 and the short-wave radiators 111 can be flexibly adjusted according to needs.

[0059] In an optional embodiment, the top wall 12 is provided with at least one short-wave radiator 111, which is communicatively connected to a signal source 21; or, the second side wall 13 is provided with a short-wave radiator 111, and the short-wave radiator 111 of the top wall 12 is coupled with the short-wave radiator 111 of the second side wall 13 to form a combined radiator.

[0060] The long-wave radiator 112 and the short-wave radiator 111 are spaced apart on the top wall 12, wherein the short-wave radiator 111 is communicatively connected to a signal source 21 to output an antenna signal of a corresponding frequency band. Furthermore, the short-wave radiator 111 located on the top wall 12 is combined with the short-wave radiator 111 on the second side wall 13 to form a combined radiator, so that the combined radiator can output an antenna signal of a corresponding frequency band, which is different from the operating frequency band of the short-wave radiator 111. The formation of the combined radiator can switch and couple the circuits through the adjustment component 24, so that the short-wave radiator 111 located on the top wall 12 and the short-wave radiator 111 on the second side wall 13 can both operate in their own operating frequency bands, and can also output the operating frequency band of the combined radiator through switching and coupling of the adjustment component 24.

[0061] In an optional embodiment, the first side wall 14 is provided with a first partition groove 16. When the first side wall 14 is provided with a long-wave radiator 112 and the long-wave radiator 112 of the first side wall 14 extends from the first side wall 14 to the top wall 12, the first partition groove 16 divides the long-wave radiator 112 into two parts. When the first side wall 14 is only provided at the short-wave radiator 111, the first partition groove 16 is located between the short-wave radiator 111 and the top wall 12.

[0062] In an optional embodiment, the second side wall 13 is provided with a second partition groove 15. When the long-wave radiator 112 is provided on the second side wall 13 and the long-wave radiator 112 of the second side wall 13 extends from the second side wall 13 to the top wall 12, the second partition groove 15 divides the long-wave radiator 112 into two parts. When the second side wall 13 is only provided at the short-wave radiator 111, the second partition groove 15 is located between the short-wave radiator 111 and the top wall 12.

[0063] A first spacing groove 16 and a second spacing groove 15 are provided on the metal frame 10 to interrupt the current path within the metal frame 10, thereby forming multiple antenna terminals 11 capable of radiating antenna signals. In an optional embodiment, the long-wave radiator 112 extends from the first side wall 14 to the top wall 12. In an optional embodiment, the long-wave radiator 112 extends from the second side wall 13 to the top wall 12. The first spacing groove 16 and the second spacing groove 15 are provided on the first side wall 14 and the second side wall 13, near the intersection of the first side wall 14 and the second side wall 13 with the top wall 12, thereby expanding the range of the top wall 12 for the antenna terminals 11.

[0064] like Figure 2 As shown, in one specific embodiment, the first side wall 14 and the second side wall 13 are each provided with a shortwave radiator 111, and the top wall 12 includes two shortwave radiators 111. The shortwave radiators 111 are communicatively connected to a signal source 21. The shortwave radiator 111 on the top wall 12 and the shortwave radiator 111 on the second side wall 13 are coupled to form a combined radiator capable of outputting long-wavelength antenna signals. Optionally, the shortwave radiator 111 on the second side wall 13 extends from the second side wall 13 to the top wall 12. Optionally, the second spacing groove 15 is located where the shortwave radiator 111 is located.

[0065] It is worth mentioning that, without changing the shape of the metal frame 10 and the positions of the first spacing groove 16 and the second spacing groove 15, the number and arrangement of the antenna terminals 11 can be flexible to achieve different operating frequency bands and reception of different signals, and realize a stacked design of multiple antennas. For example:

[0066] like Figure 1 As shown, in a specific embodiment, a short-wave radiator 111 is provided on the first side wall 14 and the second side wall 13 respectively, and a long-wave radiator 112 is provided on the top wall 12 .

[0067] like Figure 3As shown, in one specific embodiment, a longwave radiator 112 is provided on the first side wall 14, extending from the first side wall 14 to the top wall 12. The top wall 12 is provided with at least one shortwave radiator 111, and the second side wall 13 is provided with a shortwave radiator 111. In an alternative embodiment, the top wall 12 is provided with two spaced-apart shortwave radiators 111. Optionally, the circuit board 20 is connected to the top wall 12 via a locking member 30, wherein each shortwave radiator 111 is communicatively connected to the circuit board 20 via a corresponding locking member 30, and the two shortwave radiators 111 can operate independently due to different signal sources. Optionally, a locking member 30 connected to the circuit board 20 is provided at a predetermined position on the top wall 12. The locking member 30 is connected to a grounding component of the circuit board 20 to separate the two shortwave radiators 111 to prevent mutual interference, allowing the two shortwave radiators 111 to operate independently or adjust Wi-Fi dual-band radiation. Optionally, the circuit board 20 may further improve the isolation between the two shortwave radiators 111 on the top wall 12 through an adjustment component 24 provided on the circuit board 20 .

[0068] For example, the top wall 12 is provided with two spaced-apart shortwave radiators 111, which output WiFi signals operating in the 2.4 GHz and 5 GHz bands, achieving dual-band WiFi radiation with high signal strength and stability. The shortwave radiator 111 on the second side wall 13 outputs Zigbee signals operating in the 2.4 GHz band. The longwave radiator 112 on the first side wall 14 outputs Sub-1G signals operating in the 433 MHz, 868 MHz, and 915 MHz bands.

[0069] like Figure 4 As shown, in one specific embodiment, a long-wave radiator 112 is provided on the first side wall 14, extending from the first side wall 14 to the top wall 12. A long-wave radiator 112 is provided on the second side wall 13, extending from the second side wall 13 to the top wall 12. The top wall 12 is provided with at least one short-wave radiator 111. In an alternative embodiment, the top wall 12 is provided with one short-wave radiator 111. In an alternative embodiment, the top wall 12 is provided with two short-wave radiators 111 spaced apart from each other.

[0070] like Figure 5 and Figure 6 As shown, in one embodiment, the antenna device further includes a display module 40 . The display module 40 is provided with a metal housing 41 . The metal housing 41 is conductively connected to the circuit board 20 .

[0071] The display module 40 is used to output images or text information that can be recognized by the user, such as when the display module 40 is configured as a display screen module. The display module 40 is provided with a metal housing 41, which is used to support and protect the screen portion of the display module 40. Optionally, the display module 40 is provided with a rectangular display screen 42, and the metal housing 41 is configured to have a rectangular structure that matches the display screen 42. The circuit board 20 is conductively connected to the metal housing 41 so that the metal housing 41 constitutes a part of the grounding component of the antenna, so that the antenna end 11 has good radiation performance. The metal housing 41 constitutes a part of the grounding component of the antenna, which can further improve the isolation of the multi-antenna stacking design of the metal frame 10, and the antenna performance is good.

[0072] In an alternative embodiment, display module 40 is at least partially parallel to circuit board 20, with their projections partially overlapping. Display module 40 is spaced apart from circuit board 20, with their projections partially overlapping. Accordingly, conductive connection between metal housing 41 and circuit board 20 is facilitated, resulting in high space utilization.

[0073] Metal housing 41 is overlapped with circuit board 20 to achieve direct contact and conductive connection between the two. Metal frame 10 is disposed around metal housing 41, with a space between metal frame 10 and metal housing 41. Optionally, metal housing 41 and circuit board 20 are conductively connected via a connector to achieve indirect electrical connection between the metal housing 41 and circuit board 20. In an optional embodiment, the antenna device further includes a conductive member 50 that conductively connects metal housing 41 to circuit board 20.

[0074] Conductive member 50 is supported by a conductive material, such as a metal connector, conductive paste, or conductive cotton. Conductive member 50 secures either metal housing 41 or circuit board 20. Circuit board 20 is secured to metal frame 10. Display module 40 is secured to metal frame 10 or another fixed base, ensuring a conductive connection between circuit board 20 and metal housing 41 via conductive member 50. This provides a strong connection. Metal housing 41, as part of the grounding component of the antenna device, prevents interference with the operating state of antenna terminal 11, reduces the clearance area required by antenna terminal 11 within metal frame 10, and further improves the space utilization of metal frame 10.

[0075] The antenna device provided in the above embodiment is applied to an electronic device, which can be used in mobile terminals, security and smart home fields, and has a wide range of applications. In one embodiment, the electronic device includes a device body and the antenna device provided in the above embodiment, and the antenna device is installed in the device body.

[0076] The antenna assembly is mounted on the device body, with the metal frame 10 forming part of the device body. The electronic device receives and sends corresponding information and commands via the antenna assembly, enabling the coexistence of multiple antennas in operating frequency bands such as Zigbee, Sub1g, and Wi-Fi. This ensures stable signal transmission, a more comprehensive range of functions, and a better user experience.

[0077] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. An antenna device, characterized in that: include: A circuit board is provided with at least one signal source; A metal frame having at least one antenna end; a locking member, the locking member passing through the circuit board and being locked and connected to the metal frame, the locking member serving as a part of the antenna; Each of the signal sources is communicatively connected to the corresponding antenna end via the locking member; The metal frame includes a first side wall, a second side wall opposite to the first side wall, and a top wall connecting the first side wall and the second side wall, and the first side wall, the second side wall and the top wall are provided with an antenna end; The antenna end is configured as a long-wave radiator within a first operating frequency band and a short-wave radiator within a second operating frequency band, the operating frequency of the long-wave radiator being lower than the operating frequency of the short-wave radiator, the first side wall being provided with at least one long-wave radiator, and the second side wall being provided with at least one short-wave radiator; The top wall is provided with two short-wave radiators spaced apart and operating in the second frequency band. Each of the short-wave radiators is connected to the circuit board via a corresponding locking member. The two short-wave radiators have different signal sources and can operate independently. The locking member is provided at a preset position on the top wall. The locking member is connected to a grounding member of the circuit board to separate the two short-wave radiators. The two short-wave radiators on the top wall output WiFi signals with operating frequencies of 2.4 GHz and 5 GHz, and the short-wave radiator on the second side wall outputs Zigbee signals with an operating frequency of 2.4 GHz; the long-wave radiator on the first side wall outputs Sub-1G signals with operating frequencies of 433 MHz, 868 MHz, and 915 MHz. The first side wall is provided with a first spacing groove, and the second side wall is provided with a second spacing groove to form an antenna end capable of radiating the WiFi signal, the Zigbee signal and the Sub-1G signal.

2. The antenna device according to claim 1, wherein The circuit board includes a contact portion corresponding to each signal source and a mounting hole provided at the contact portion. The locking piece passes through the mounting hole and is locked to the metal frame. The contact portion is electrically connected to the metal frame through the locking piece; or the contact portion is attached to the metal frame and electrically connected to the metal frame.

3. The antenna device according to claim 2, wherein: The circuit board further includes an adjustment component, and the contact portion is electrically connected to the signal source through the adjustment component.

4. The antenna device according to claim 1, wherein The metal frame includes a fixing portion corresponding to each antenna end, and the locking member is connected to the fixing portion.

5. The antenna device according to claim 1, wherein The short-wave radiator on the top wall and the short-wave radiator on the second side wall are coupled to form a combined radiator.

6. The antenna device according to claim 1, wherein The long-wave radiator extends from the first side wall to the top wall.

7. The antenna device according to claim 1, wherein The antenna device further includes a display module. The display module is provided with a metal shell, and the metal shell is conductively connected to the circuit board.

8. The antenna device according to claim 7, wherein: The antenna device further includes a conductive member, which conductively connects the metal housing and the circuit board.

9. The antenna device according to claim 1, wherein The connection impedance between the metal frame and the circuit board is less than or equal to 1 ohm.

10. An electronic device, characterized in that: The invention comprises a device body and the antenna device according to any one of claims 1 to 9, wherein the antenna device is installed on the device body.

Images