Cavity antenna assembly and electronic device

Abstract

The utility model discloses a cavity antenna assembly and an electronic device, which belong to the technical field of antennas, and comprise two groups of cavity antennas, the two groups of cavity antennas are arranged in an installation cavity with a gap, the two groups of cavity antennas are connected through a coaxial cable, each cavity antenna comprises a shell with an installation groove and a support frame, the supporting frame comprises a bearing frame and an extending portion connected with the bearing frame, at least part of the bearing frame is located in the mounting groove, the extending portion is located outside the mounting groove, and a plurality of evenly-distributed grooves are formed in the bearing frame. According to the utility model, the technical effects of improving the communication performance and prolonging the service life are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of antennas, and in particular relates to a cavity antenna component and an electronic device. Background Art

[0002] With the rapid development of information technology, electronic devices such as tablet computers and mobile phones play an increasingly important role in people's daily lives. As a key component for wireless communication, WI FI antennas are directly related to the user's network experience. All-metal tablet computers can meet consumers' high requirements for the appearance and texture of electronic devices. In antenna technology, metal materials have a strong shielding effect on antenna signals. Cavity WI F IM I MO antennas have better signal reception capabilities. When connected to the same network, they have stronger network grabbing capabilities and faster speeds, which will obviously bring a better WI FI speed experience. However, the current antennas cannot adapt to all-metal tablet computers, and the communication performance of the antennas is poor and the service life is short.

[0003] Therefore, it is necessary to provide a new technical solution to solve the above technical problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is the technical problem of poor communication performance and short service life.

[0005] In order to solve the above technical problems, the utility model provides a cavity antenna assembly, which includes: two groups of cavity antennas, the two groups of cavity antennas are arranged in an installation cavity with a gap, the two groups of cavity antennas are connected by a coaxial cable, the cavity antenna includes a shell with an installation groove and a support frame, the support frame includes a bearing frame and an extension portion connected to the bearing frame, the bearing frame is at least partially located in the installation groove, the extension portion is located outside the installation groove, and a plurality of evenly distributed grooves are provided on the bearing frame.

[0006] Optionally, the cavity antenna assembly further includes: a shell and a display assembly, the shell and the display assembly enclose the installation cavity, the gap is formed between the shell and the display assembly, the gap is communicated with the installation cavity, and the shell is made of metal material.

[0007] Optionally, the shell includes: a first side panel and a second side panel arranged opposite to each other, and a third side panel respectively connected to the first side panel and the second side panel, the first side panel, the second side panel and the third side panel enclose the mounting groove, the projection of the second side panel along the direction in which the second side panel approaches the first side panel is located on the first side panel, and the supporting frame is located between the first side panel and the second side panel.

[0008] Optionally, the first side panel includes: a first connecting plate, a second connecting plate and a third connecting plate, the second connecting plate is respectively connected to the first connecting plate and the third connecting plate, the third connecting plate is connected to the third side panel, the second connecting plate is recessed in a direction close to the second side panel, and the first connecting plate and the third connecting plate are located in the same plane.

[0009] Optionally, two groups of the cavity antennas are coupled to the shell to respectively generate a resonant frequency range of 2.4 GHZ to 2.5 GHZ and a resonant frequency range of 5.15 GHZ to 5.85 GHZ in the gap, and the two groups of the cavity antennas are respectively arranged on two opposite sides of the shell.

[0010] Optionally, the extension portion includes a first extending plate and a second extending plate, the support frame is connected to the first extending plate and the second extending plate respectively, the shell is located between the first extending plate and the second extending plate, and the support frame includes a first surface and a second surface that are opposite to each other.

[0011] Optionally, the plurality of grooves include a plurality of first grooves and a plurality of second grooves, the plurality of first grooves are arranged on the first surface, the plurality of first grooves are located inside the mounting groove, the plurality of second grooves are arranged on the second surface, and the plurality of second grooves are located outside the mounting groove.

[0012] Optionally, a plurality of the first grooves are close to one end of the support frame, and the first grooves are recessed from the first surface toward the second surface.

[0013] Optionally, a plurality of the second grooves are close to the other end of the support frame, and the second grooves are recessed from the second surface toward the first surface.

[0014] According to another aspect of the present invention, the present invention further provides an electronic device, wherein the electronic device is provided with the cavity antenna assembly.

[0015] Beneficial effects:

[0016] The utility model provides a cavity antenna assembly, which is achieved by arranging two groups of cavity antennas inside a mounting cavity, the mounting cavity having a gap, the two groups of cavity antennas being connected by a coaxial cable, the shell in the cavity antenna having a mounting groove, the extension of the support frame in the cavity antenna being connected to the carrier frame, the carrier frame being at least partially located inside the mounting groove, and the extension being located outside the mounting groove, and a plurality of evenly distributed grooves being provided on the carrier frame. In this way, the two groups of cavity antennas are connected by coaxial cables to form a stable signal transmission channel, the support frame provides support and positioning for the shell, and the two groups of cavity antennas will resonate in the gap. At the same time, when subjected to external forces or temperature changes, the plurality of grooves provided on the carrier frame will enable the stress to be more evenly distributed on the carrier frame to effectively resist deformation, and the plurality of grooves will also increase the surface area of ​​the carrier frame, improve the heat dissipation efficiency, reduce the deformation caused by temperature changes, and avoid affecting the structure of the antenna. Thereby, the technical effect of being able to improve communication performance and be conducive to extending the service life is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a cavity antenna assembly provided by an embodiment of the present invention;

[0018] Figure 2 A schematic structural diagram of a first groove in a cavity antenna assembly provided by an embodiment of the present invention;

[0019] Figure 3 A schematic structural diagram of a second groove in a cavity antenna assembly provided by an embodiment of the present invention;

[0020] Figure 4 A schematic structural diagram of an extension portion in a cavity antenna assembly provided by an embodiment of the present invention;

[0021] Figure 5 A schematic structural diagram of a shell in a cavity antenna assembly provided by an embodiment of the present invention;

[0022] Figure 6 A schematic structural diagram of a first side plate in a cavity antenna assembly provided by an embodiment of the present invention;

[0023] Figure 7 A schematic structural diagram of a second surface in a cavity antenna assembly provided by an embodiment of the present invention;

[0024] Figure 8 A schematic structural diagram of a first conductive component in a cavity antenna assembly provided by an embodiment of the present invention;

[0025] Fig. 9 A schematic structural diagram of a second conductive component in a cavity antenna assembly provided by an embodiment of the present invention;

[0026] Fig.10A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0027] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0028] For ease of understanding, the English abbreviations and related technical terms involved in the embodiments of the present application are explained and described below.

[0029] Parallel: The parallelism defined in this application is not limited to absolute parallelism. This definition of parallelism can be understood as basic parallelism, which allows for non-absolute parallelism due to factors such as assembly tolerance, design tolerance, and the influence of structural flatness. Small angular errors are allowed. For example, an assembly error range of less than 10 degrees can be understood as a parallel relationship.

[0030] Vertical: The verticality defined in this application is not limited to an absolute vertical intersection relationship (angle of 90 degrees). It allows for non-absolute vertical intersection relationships caused by factors such as assembly tolerance, design tolerance, and influence of structural flatness. It also allows for errors in a small angle range. For example, the assembly error range of 80 to 100 degrees can be understood as a vertical relationship.

[0031] Connected / connected: can refer to a mechanical connection relationship or a physical connection relationship, that is, A and B are connected or A and B are connected, which can mean that there is a fastening component (such as screws, bolts, rivets, etc.) between A and B, or A and B are in contact with each other and A and B are difficult to separate.

[0032] Coupling: can be understood as direct coupling and / or indirect coupling, and "coupled connection" can be understood as direct coupling connection and / or indirect coupling connection. Direct coupling can also be called "electrical connection", which is understood as the physical contact and electrical conduction between components; it can also be understood as the form in which different components in the circuit structure are connected through physical lines such as printed circuit board (PCB) copper foil or wires that can transmit electrical signals; "indirect coupling" can be understood as two conductors being electrically conductive in an airless / non-contact manner. In one embodiment, indirect coupling can also be called capacitive coupling, for example, signal transmission is achieved by coupling between the gaps between two conductive components to form an equivalent capacitor.

[0033] Connection: The above-mentioned "electrical connection" or "indirect coupling" method is used to make two or more components conductive or connected to each other for signal / energy transmission, which can be called connection.

[0034] Working frequency band, or simply frequency band: The antenna module belongs to the RF system. The RF system needs to work within a certain frequency range to communicate with other devices. The frequency range of the RF system is called the working frequency band.

[0035] Working resonance, or simply resonance: refers to the resonance generated by the antenna unit in the working frequency band.

[0036] Resonant frequency: The resonant frequency is also called the resonance frequency. The resonant frequency can have a frequency range, that is, the frequency range in which resonance occurs. It should be understood that, unless otherwise specified, the antenna / radiator mentioned in this application produces "resonance", where the resonance should be the fundamental mode resonance generated by the antenna / radiator, or in other words, the lowest frequency resonance generated by the antenna / radiator. It should be understood that the antenna / radiator can generate one or more antenna modes according to the specific design, and each antenna mode can generate a corresponding fundamental mode resonance.

[0037] Resonance frequency band: The range of the resonance frequency is the resonance frequency band, and the resonance frequency band and the working frequency band may be the same or partially overlap. In one embodiment, one or more resonance frequency bands of the antenna may cover one or more working frequency bands of the antenna.

[0038] Ground state: corresponds to a section of a radiator, or a radiator in a certain antenna mode, the lowest frequency resonance. Among them, "ground state position" or "ground state resonant frequency" refers to the frequency range or resonant frequency corresponding to the ground state of the radiator in a specific antenna mode (for example, the lowest frequency resonance). The "resonance" in the embodiments of the present application refers to the resonance in the ground state, or the resonance generated by the fundamental mode.

[0039] The size of the cavity antenna 1 component: refers to the span size of the cavity inside the cavity antenna 1 component in different directions, where the cavity size refers to the size of the cavity formed by the conductive surface. For example, when the cavity is a rectangular parallelepiped, the antenna size can be the three span sizes of the length, width and height of the rectangular parallelepiped; when the cavity is a cylinder, the antenna size is the diameter and height of the cylinder; when the cavity is an irregular shape, the antenna size can be the maximum span size in three directions in a three-dimensional rectangular system.

[0040] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings.

[0041] It should be clear that the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0042] References to "one embodiment" or "some embodiments" etc. described in this specification mean that one or more embodiments of the present application include a particular feature, structure or characteristic described in conjunction with the embodiment. Thus, in this specification, the terms "include", "comprises", "has" and their variations all mean "including but not limited to", unless otherwise specifically emphasized.

[0043] In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0044] In addition, in the present application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to the changes in the orientation of the components in the drawings.

[0045] It should be understood that the term "and / or" used in this article is only a description of the same field of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0046] When used in this application, “within the range of…”, unless it is separately specified that an end value is not included, it is assumed that both end values ​​of the range are included. For example, in the range of 1 to 5, the two values ​​1 and 5 are included.

[0047] The present application provides a cavity antenna 1 component, which is suitable for use in electronic devices to radiate and receive electromagnetic waves. The electronic devices may be mobile phones, tablet computers, car computers, smart wearable products, Internet of Things (IoT), etc. The embodiments of the present application do not impose any special restrictions on the specific form of the above electronic devices.

[0048] A cavity antenna 1 component provided in the first embodiment of the present invention is shown in FIG. Figures 1 to 10 As shown, Figure 1is a schematic structural diagram of a cavity antenna 1 component provided by an embodiment of the present invention, Figure 2 is a structural schematic diagram of a first groove 1131 in a cavity antenna 1 component provided by an embodiment of the present invention, Figure 3 is a schematic structural diagram of a second groove 1132 in a cavity antenna 1 assembly provided by an embodiment of the present invention, Figure 4 1 is a schematic structural diagram of an extension portion 112 in a cavity antenna 1 assembly provided in an embodiment of the present invention. Figure 5 is a schematic structural diagram of a housing 12 in a cavity antenna 1 assembly provided by an embodiment of the present invention. Figure 6 is a schematic structural diagram of a first side plate 122 in a cavity antenna 1 assembly provided by an embodiment of the present invention, Figure 7 is a schematic structural diagram of a second surface 1112 in a cavity antenna 1 component provided by an embodiment of the present invention, Figure 8 is a schematic structural diagram of a first conductive component 131 in a cavity antenna 1 assembly provided by an embodiment of the present invention, Fig. 9 is a schematic structural diagram of a second conductive component 132 in a cavity antenna 1 assembly provided by an embodiment of the present invention, Fig.10 It is a structural schematic diagram of an electronic device 4 provided by an embodiment of the present invention. A cavity antenna 1 assembly provided by the first embodiment of the present invention includes two groups of cavity antennas 1, the two groups of cavity antennas 1 are arranged inside the installation cavity, the installation cavity has a gap 32, the two groups of cavity antennas 1 are connected by a coaxial cable 2, the cavity antenna 1 includes a support frame 11, a shell 12 and two conductive components, the shell 12 has a mounting groove 121, the support frame 11 includes a bearing frame 111 and an extension 112, the extension 112 is connected to the bearing frame 111, the bearing frame 111 is at least partially located inside the mounting groove 121, the extension 112 is located outside the mounting groove 121, and a plurality of evenly distributed grooves are provided on the bearing frame 111. The two conductive components are respectively arranged on both sides of the shell 12, and the two conductive components are located outside the mounting groove 121. The conductive components include foam and a conductive layer 133, and the conductive layer 133 is wrapped on the foam.

[0049] Among them, the two groups of cavity antennas 1 can be cavity WI F IM I MO antennas. The use of MIMO antennas combined with the characteristics of cavity antennas 1 can provide higher data transmission rates, more reliable transmission performance, wider coverage, and stronger signal reception capabilities. The mounting slot 121 of the shell 12 in the cavity antenna 1 has a space inside to accommodate the support frame 111 in the support frame 11. The support frame 111 of the support frame 11 extends into the mounting slot 121, providing stable support and positioning for the shell 12. The extension 112 of the support frame 11 is located outside the mounting slot 121, which is convenient for connection and fixation with other components.

[0050] Among them, multiple grooves are evenly distributed on the support frame 111, which can not only make the stress more evenly distributed on the support frame 111 when subjected to external force or temperature changes, effectively resist deformation, but also increase the surface area of ​​the support frame 111, improve heat dissipation efficiency, and reduce deformation caused by temperature changes.

[0051] Among them, the two conductive parts are respectively located on the upper side and the lower side of the shell 12. The upper side of the shell 12 may also be provided with an antenna module. It can be understood by those skilled in the art that the antenna module is used to receive radio waves and transmit signals at the same time. The conductive layer 133 is wrapped around the periphery of the foam, and the conductive layer 133 is connected to the shell 12. Through the combination of the foam and the conductive layer 133, the shell 12 is fixed and the smooth transmission of the signal is ensured. The buffering effect of the foam can also effectively reduce the damage to the antenna assembly caused by external impact and improve the durability of the entire assembly.

[0052] Among them, two groups of cavity antennas 1 are connected to each other through a coaxial cable 2, and the impedance range of the coaxial cable 2 is 48Ω to 52Ω, that is, the impedance of the coaxial cable 2 is in the range of 48Ω to 52Ω, the maximum operating voltage can be 1000V, and the maximum operating frequency is 6GHZ, which helps to ensure the stability of the signal during transmission and reduce reflections. It can be used in occasions requiring high voltage transmission and supports high-speed data transmission and broadband communication.

[0053] In this embodiment, two groups of cavity antennas 1 are arranged inside the installation cavity, that is, the size of the internal space of the installation cavity is larger than the size of the cavity antenna 1 component, the installation cavity has a gap 32, the two groups of cavity antennas 1 are connected by a coaxial cable 2, the shell 12 in the cavity antenna 1 has a mounting groove 121, the extension 112 of the support frame 11 in the cavity antenna 1 is connected to the support frame 111, the support frame 111 is at least partially located inside the mounting groove 121, the extension 112 is located outside the mounting groove 121, and a plurality of evenly distributed grooves are arranged on the support frame 111, two conductive components are respectively arranged on both sides of the shell 12, and the two conductive components are located outside the mounting groove 121, and the conductive layer 133 in the conductive component is wrapped on the foam. In this way, the two groups of cavity antennas 1 are connected by the coaxial cable 2 to form a stable signal transmission channel, the support frame 11 provides support and limit for the shell 12, and the two groups of cavity antennas 1 will resonate in the gap 32. At the same time, when subjected to external forces or temperature changes, the multiple grooves provided on the support frame 111 will allow the stress to be more evenly distributed on the support frame 111 to effectively resist deformation. The multiple grooves will also increase the surface area of ​​the support frame 111, improve the heat dissipation efficiency, reduce the deformation caused by temperature changes, and avoid affecting the structure of the antenna. In addition, the housing 12 is fixed and signal transmission is achieved through the conductive component, and the buffering effect of the foam can also reduce the damage to the antenna component caused by external impact and improve durability. Thereby achieving the technical effect of improving communication performance and extending service life.

[0054] As an implementation, see Figures 4 to 10The cavity antenna 1 assembly includes a housing 3 and a display assembly 31, the display assembly 31 includes a display screen, the housing 3 and the display assembly 31 together enclose the above-mentioned installation cavity, an assembly gap is formed between the housing 3 and the display assembly 31, the assembly gap is the above-mentioned gap 32, the gap 32 is interconnected with the installation cavity, so that electromagnetic waves can propagate in the gap 32. The housing 3 is made of metal material to enhance the strength of the housing 3 structure and the electromagnetic shielding performance. Two groups of cavity antennas 1 are respectively arranged on opposite side edges of the shell 3, that is, two groups of cavity antennas 1 are respectively arranged on two opposite sides of the shell 3, and the two groups of cavity antennas 1 are coupled with the shell 3 to generate resonance in a specific frequency range in the gap 32, which are 2.4GHZ to 2.5GHZ, and 5.15GHZ to 5.85GHZ, respectively. That is, one group of cavity antennas 1 generates resonance in the range of 2.4GHZ to 2.5GHZ in the gap 32, and the other group of cavity antennas 1 generates resonance in the range of 5.15GHZ to 5.85GHZ in the gap 32. The two groups of cavity antennas 1 resonate in different frequency ranges and can work simultaneously without mutual interference, allowing multi-band operation to be achieved on the same device, so that the device can flexibly adapt to different application scenarios and needs, thereby optimizing the propagation path of electromagnetic waves, improving signal quality and coverage, and helping to improve communication performance.

[0055] In some embodiments, the housing 12 includes a first side plate 122, a second side plate 123 and a third side plate 124, and the first side plate 122, the second side plate 123 and the third side plate 124 can be integrally formed. The first side plate 122 and the second side plate 123 are arranged opposite to each other, that is, the first side plate 122 is located at the top and the second side plate 123 is located at the bottom. The third side plate 124 is connected to the first side plate 122 and the second side plate 123 respectively, and the first side plate 122, the second side plate 123 and the third side plate 124 jointly enclose the above-mentioned mounting groove 121, and the interior of the mounting groove 121 can be used to accommodate the bearing frame 111. In the direction close to the first side plate 122, the projection part of the second side plate 123 is located on the first side plate 122, which is conducive to enhancing the compactness of the structure. The bearing frame 111 is located between the first side plate 122 and the second side plate 123, and the bearing frame 111 can provide support for the entire structure. The two conductive components are a first conductive component 131 and a second conductive component 132. The first conductive component 131 is disposed on the first side plate 122 of the shell 12, and the second conductive component 132 is disposed on the second side plate 123 of the shell 12. The first conductive component 131 and the second conductive component 132 are used to fix the shell 12 and for signal transmission.

[0056] In some embodiments, the first side plate 122 includes a first connecting plate 1221, a second connecting plate 1222, and a third connecting plate 1223, and the first connecting plate 1221, the second connecting plate 1222, and the third connecting plate 1223 can be integrally formed. The second connecting plate 1222 is connected to the first connecting plate 1221 and the third connecting plate 1223, respectively, and the third connecting plate 1223 is connected to the third side plate 124 to form a side plate structure with a specific shape. Among them, the second connecting plate 1222 is recessed in a direction close to the second side plate 123, that is, it is recessed in a direction perpendicular to the second side plate 123. The first connecting plate 1221 and the third connecting plate 1223 are both located in the same plane, that is, the first connecting plate 1221 and the third connecting plate 1223 are parallel to each other. The first connecting plate 1221, the second connecting plate 1222 and the third connecting plate 1223 are formed in a concave space on the second connecting plate 1222. The concave space can be used to install the first conductive component 131. A portion of the first conductive component 131 is located inside the concave space, and another portion of the first conductive component 131 is located outside the concave space. The first foam 1311 of the first conductive component 131 is arranged on the second connecting plate 1222. In the direction along the first connecting plate 1221 approaching the third connecting plate 1223, the projection of the first connecting plate 1221 on the first foam 1311 is located on the first foam 1311, that is, the first foam 1311 partially extends out of the above-mentioned concave space, and the portion extending out of the above-mentioned concave space is on the top of the first connecting plate 1221, so that the first foam 1311 and the display assembly 31 are in contact with each other.

[0057] As an implementation mode, the number of the second conductive components 132 can be two, the second foam 1321 of the second conductive component 132 is arranged on the second side plate 123, and a limiting groove 1241 is arranged on the third side plate 124, and the limiting groove 1241 is used for the coaxial cable 2 to pass through. The two second foams 1321 are symmetrically distributed relative to the limiting groove 1241, that is, the two second foams 1321 are arranged on the second side plate 123, the two second foams 1321 are symmetrically distributed relative to the limiting groove 1241, and the outer peripheries of the two second foams 1321 are wrapped with a conductive layer 133, which helps to reduce signal interference and improve communication quality.

[0058] As an implementation mode, the first conductive component 131 is connected to the display component 31 and is grounded. The first conductive component 131 is located between the first side plate 122 and the display component 31, which helps to achieve stable signal transmission. The second conductive component 132 is connected to the housing 3. The second conductive component 132 is located between the second side plate 123 and the housing 3. The first side plate 122 and the display component 31 are connected by the first conductive component 131, and the second side plate 123 and the housing 3 are connected by the second conductive component 132, which can enhance the structural stability of the entire component. The first conductive component 131 and the second conductive component 132 can not only achieve stable signal transmission, but also enhance the durability of the component, which is conducive to improving communication performance.

[0059] As another embodiment, the conductive layer 133 can be C-shaped, that is, the conductive layer 133 as a whole is open on one side, and the conductive layer 133 is made of tin material, that is, the first conductive component 131 is a half-tin-plated foam structure, and the second conductive component 132 is also a half-tin-plated foam structure. The conductive layer 133 being C-shaped helps to enhance the conductivity, and at the same time enables the conductive layer 133 to fit more closely on the foam, thereby improving the stability and durability of the entire conductive component. Tin material has good conductivity and ductility. The conductive layer 133 is made of tin material, which can meet the requirements of the conductive layer 133 for conductivity and structural stability. By adopting a C-shaped conductive layer 133, signal transmission can be effectively achieved, and the fixed connection with the housing 12 is also enhanced.

[0060] In some embodiments, the extension portion 112 includes a first overhanging plate 1121 and a second overhanging plate 1122, the first overhanging plate 1121 is connected to one end of the support frame 11, and the second overhanging plate 1122 is connected to the other end of the support frame 11, the first overhanging plate 1121, the second overhanging plate 1122 and the support frame 11 can be integrally formed, and the first overhanging plate 1121 and the second overhanging plate 1122 respectively provide stable support for the support frame 111. The first overhanging plate 1121 and the second overhanging plate 1122 can also be provided with mounting holes respectively. The shell 12 is located between the first overhanging plate 1121 and the second overhanging plate 1122, which helps to protect the shell 12 and prevent the shell 12 from being damaged by external impact. The support frame 111 includes a first surface 1111 and a second surface 1112, and the first surface 1111 and the second surface 1112 are two surfaces opposite to each other. The plurality of grooves include a plurality of first grooves 1131 and a plurality of second grooves 1132, wherein the plurality of first grooves 1131 are disposed on the first surface 1111 and are located inside the mounting groove 121. The plurality of second grooves 1132 are disposed on the second surface 1112 and are located outside the mounting groove 121, so that the grooves can be distributed at different positions of the carrier 111, more effectively resisting deformation caused by external forces and temperature changes, and improving the structural stability of the entire assembly.

[0061] In some embodiments, the plurality of first grooves 1131 are close to one end of the support frame 11, and the plurality of second grooves 1132 are close to the other end of the support frame 11, that is, the plurality of first grooves 1131 and the plurality of second grooves 1132 are respectively located at the two ends, and the first grooves 1131 and the second grooves 1132 do not overlap in the direction perpendicular to the first side plate 122, so that the stress can be more evenly distributed on the support frame 111, which is conducive to enhancing the structural strength of the support frame 111. At the same time, the first grooves 1131 are recessed from the first surface 1111 to the direction close to the second surface 1112, and the second grooves 1132 are recessed from the second surface 1112 to the direction close to the first surface 1111, which can increase the surface area of ​​the support frame 111, improve the heat dissipation efficiency, help reduce the deformation caused by temperature changes, and further improve the structural stability and durability of the cavity antenna 1 assembly.

[0062] In order to explain in detail an electronic device 4 provided by the present invention, the above-mentioned embodiment 1 explains in detail a cavity antenna 1 component. Based on the same inventive concept, the present application also provides an electronic device 4, as detailed in the following embodiment 2.

[0063] Embodiment 2 of the present invention provides an electronic device 4, and the electronic device 4 is provided with the cavity antenna 1 assembly. The electronic device 4 mainly includes a housing 3 and a display assembly 31. The housing 3 may include a middle frame and a back cover. The middle frame and the back cover may be integrally formed. The middle frame is connected to the display assembly 31, and a gap 32 is located between the middle frame and the display assembly 31. The display assembly 31 is used to display images. In some embodiments of the present application, the display assembly 31 includes a liquid crystal display module and a backlight module. Alternatively, in other embodiments of the present application, the display assembly 31 may be an organic light emitting diode display screen. A conductive coating is provided on the inner side of the display assembly 31 facing the housing 3. The conductive coating may be a metal material, or may be a shielding layer of the display assembly 31, which is used to protect the display assembly 31 from interference from other devices in the electronic device 4.

[0064] The display assembly 31 and the housing 3 together constitute a conductive housing 12, and the housing 3 and the display assembly 31 together enclose a dielectric cavity of the electronic device 4. In a specific embodiment, the housing 3 is an integrated metal structure. In other embodiments, the housing 3 may also include a non-metallic body, which may be made of non-metallic materials such as plastic, and a metal layer is provided on the inner side of the non-metallic body of the housing 3, and the metal layer may be a partial area of ​​the housing 3, for example, an edge area of ​​the housing 3.

[0065] When the electronic device 4 is provided with a middle frame (not shown in the figure), the middle frame includes a conductive frame. In some embodiments, the conductive frame can be a conductive frame formed integrally on the middle frame body. It should be understood that in other embodiments, the conductive frame and the middle frame body can also be independent of each other, for example, the conductive frame and the middle frame body can be formed separately using different materials, for example, the conductive frame is formed of a conductive material, and the middle frame body is formed of a non-conductive material.

[0066] In one embodiment, in the mobile phone, there is an assembly gap between the display component 31 and the housing 3 , and the assembly gap is an inevitable gap 32 formed when the two components are assembled, and electromagnetic waves can enter the interior of the mobile phone through the gap 32 .

[0067] In one embodiment, this embodiment can also be applied to electronic devices 4 such as tablet computers, which are also provided with a display component 31 and a housing 3, and the gap 32 can also include a structural gap between the display component 31 and the housing 3 to achieve radiation and reception of dual-band signals. The two groups of cavity antennas 1 described in this embodiment are respectively provided on both sides of the housing 3 of the tablet computer.

[0068] In a possible implementation, based on the structure of the cavity antenna 1 component described above, this implementation proposes an application of a cavity antenna 1 component in an electronic device 4. The electronic device 4 may be a laptop computer, a desktop computer, or an all-in-one computer. This implementation takes a laptop computer as an example. The laptop computer described in this implementation may include the cavity antenna 1 component described in any of the above implementations. For example, the gap 32 in the laptop computer is utilized, and the gap 32 includes an assembly gap between the display component 31 and the metal back shell to achieve the radiation and reception of dual-band signals. Electronic components such as circuit boards are installed in the space between the display component 31 and the metal back shell. The metal back shell is made of metal material, or a metal layer is attached to the inner side of the display component 31 and the metal back shell. The two groups of cavity antennas 1 described in this implementation are respectively arranged on both sides of the metal back shell in the laptop computer.

[0069] In a possible implementation, based on the structure of the cavity antenna 1 component described above, this implementation proposes an application of the cavity antenna 1 component in an electronic device 4. The electronic device 4 may be an electronic device having a circuit board. Or the electronic device 4 may be an electronic device having a circuit board, and the electronic device includes a keyboard. The cavity antenna 1 component described in the above implementation may be applied to any electronic device having the circuit board.

[0070] The present invention provides an electronic device 4, which is provided with the cavity antenna 1 assembly, in which two groups of cavity antennas 1 are arranged inside the installation cavity, the installation cavity has a gap 32, the two groups of cavity antennas 1 are connected by a coaxial cable 2, the shell 12 in the cavity antenna 1 has a mounting groove 121, the extension 112 of the support frame 11 in the cavity antenna 1 is connected to the carrier 111, the carrier 111 is at least partially located inside the mounting groove 121, the extension 112 is located outside the mounting groove 121, and a plurality of grooves evenly distributed are provided on the carrier 111, two conductive components are respectively arranged on both sides of the shell 12, and the two conductive components are located outside the mounting groove 121, and the conductive layer 133 in the conductive component is wrapped on the foam. In this way, the two groups of cavity antennas 1 are connected by the coaxial cable 2 to form a stable signal transmission channel, the support frame 11 provides support and limit for the shell 12, and the two groups of cavity antennas 1 will resonate in the gap 32. At the same time, when subjected to external forces or temperature changes, the multiple grooves provided on the support frame 111 will allow the stress to be more evenly distributed on the support frame 111 to effectively resist deformation. The multiple grooves will also increase the surface area of ​​the support frame 111, improve the heat dissipation efficiency, and reduce deformation caused by temperature changes. In addition, the housing 12 is fixed and signal transmission is achieved through the conductive component, and the buffering effect of the foam can also reduce the damage to the antenna assembly caused by external impact and improve durability. Thereby achieving the technical effect of improving communication performance and extending service life.

[0071] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A cavity antenna assembly, characterized in that: The cavity antenna assembly includes: two groups of cavity antennas, the two groups of cavity antennas are arranged in an installation cavity with a gap, the two groups of cavity antennas are connected by a coaxial cable, the cavity antenna includes a shell with an installation groove and a support frame, the support frame includes a bearing frame and an extension portion connected to the bearing frame, the bearing frame is at least partially located in the installation groove, the extension portion is located outside the installation groove, and a plurality of evenly distributed grooves are provided on the bearing frame.

2. The cavity antenna assembly according to claim 1, characterized in that: The cavity antenna assembly further includes: a shell and a display assembly, wherein the shell and the display assembly enclose the installation cavity, wherein the gap is formed between the shell and the display assembly, and the gap communicates with the installation cavity, and the shell is made of metal.

3. The cavity antenna assembly according to claim 2, characterized in that: The shell includes: a first side panel and a second side panel arranged opposite to each other, and a third side panel respectively connected to the first side panel and the second side panel, the first side panel, the second side panel and the third side panel enclose the mounting groove, the projection of the second side panel along the direction in which the second side panel approaches the first side panel is located on the first side panel, and the supporting frame is located between the first side panel and the second side panel.

4. The cavity antenna assembly according to claim 3, characterized in that: The first side plate includes: a first connecting plate, a second connecting plate and a third connecting plate, the second connecting plate is connected to the first connecting plate and the third connecting plate respectively, the third connecting plate is connected to the third side plate, the second connecting plate is recessed in a direction close to the second side plate, and the first connecting plate and the third connecting plate are located in the same plane.

5. The cavity antenna assembly according to claim 2, characterized in that: The two groups of cavity antennas are coupled to the shell to respectively generate a resonant frequency range of 2.4 GHZ to 2.5 GHZ and a resonant frequency range of 5.15 GHZ to 5.85 GHZ in the gap, and the two groups of cavity antennas are respectively arranged on two opposite sides of the shell.

6. The cavity antenna assembly according to claim 1, characterized in that: The extending portion includes a first extending plate and a second extending plate, the supporting frame is connected to the first extending plate and the second extending plate respectively, the shell is located between the first extending plate and the second extending plate, and the supporting frame includes a first surface and a second surface opposite to each other.

7. The cavity antenna assembly according to claim 6, characterized in that: The plurality of grooves include a plurality of first grooves and a plurality of second grooves, wherein the plurality of first grooves are arranged on the first surface and are located in the mounting groove, and the plurality of second grooves are arranged on the second surface and are located outside the mounting groove.

8. The cavity antenna assembly according to claim 7, characterized in that: A plurality of the first grooves are close to one end of the support frame, and the first grooves are recessed from the first surface toward the second surface.

9. The cavity antenna assembly according to claim 7, characterized in that: A plurality of the second grooves are close to the other end of the support frame, and the second grooves are recessed from the second surface toward the first surface.

10. An electronic device, characterized in that: The electronic device is provided with the cavity antenna assembly as described in any one of claims 1 to 9.

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