Antenna structure and electronic equipment

Abstract

The utility model discloses an antenna structure and electronic equipment, and the antenna structure comprises a metal housing, a metal mainboard, and a plurality of grounding plates. The metal shell comprises a metal bottom plate and a metal frame which surrounds the periphery of the metal bottom plate and is of a closed structure, and the metal bottom plate and the metal frame are integrally formed to form a first cavity; the plurality of grounding plates are arranged in the first cavity and surround in the first cavity to form a second cavity; the metal main board is laid on the plurality of grounding plates, and an interval is formed between the metal frames; a plurality of metal blocks used for connecting the metal shell, the metal mainboard and the grounding plate are arranged in the interval; wherein at least part of the metal block, the metal mainboard, the grounding plate, the metal bottom plate and the metal frame surround to form one or more cavity antennas. According to the antenna structure, the influence on the appearance of the electronic equipment can be avoided.

Description

Technical Field

[0001] The present application relates to the field of antenna technology, and in particular to an antenna structure and an electronic device. Background Art

[0002] With the development of society, electronic products have more requirements on the appearance and size of products in addition to good antenna performance to ensure signal, such as thinner, stronger, and more tactile, so metal frame antennas are widely used. However, metal frame antennas also have certain defects, such as cracks, which will affect the appearance when forming electronic products. Utility Model Content

[0003] The present application provides an antenna structure and an electronic device, which can effectively prevent the appearance of the electronic device from being affected by breakpoints or slots on a metal frame.

[0004] The present application provides an antenna structure, the antenna structure comprising:

[0005] A metal shell, the metal shell comprising a metal bottom plate and a metal frame surrounding the metal bottom plate and forming a closed structure, the metal bottom plate and the metal frame are integrally formed to form a first cavity;

[0006] A plurality of grounding plates, wherein the plurality of grounding plates are arranged in the first cavity and surround the second cavity;

[0007] A metal main board, wherein the metal main board is laid on a plurality of grounding plates and forms a gap with the metal frame; a plurality of metal ground blocks for connecting the metal shell, the metal main board and the grounding plate are arranged in the gap; wherein one or more cavity antennas are formed around at least part of the metal ground blocks, the metal main board, the grounding plate, the metal bottom plate and the metal frame.

[0008] In the antenna structure of some embodiments, one or more isolation cavities are formed around another part of the metal ground block, the metal main board, the ground plate, the metal bottom plate and the metal frame.

[0009] In the antenna structure of some embodiments, each ground plate is not parallel to the plane where the metal base plate is located, and the distance from the side of each ground plate away from the metal base plate to the metal base plate is the same.

[0010] In the antenna structure of some embodiments, a plurality of metal blocks divide the metal frame into a plurality of frame segments; and feeding points are correspondingly arranged on the frame segments corresponding to the cavity antenna.

[0011] In the antenna structure of some embodiments, the distance from the side of the metal frame away from the metal base plate to the metal base plate, the distance from the side of the metal block away from the metal base plate to the metal base plate, and the distance from the metal main board to the metal base plate are equal.

[0012] In some embodiments of the antenna structure, when the antenna structure has multiple cavity antennas, the lengths of the frame segments corresponding to at least two cavity antennas are different.

[0013] In some embodiments, when the antenna structure has multiple cavity antennas, at least two cavity antennas have different shapes.

[0014] In the antenna structure of some embodiments, the shape of the cavity antenna includes at least any one of a U-shape, an L-shape and a straight shape.

[0015] An embodiment of the present application further provides an electronic device, which includes the antenna structure as described above.

[0016] In some embodiments of the electronic device, when the antenna structure has a first cavity antenna, a second cavity antenna, a third cavity antenna, a fourth cavity antenna and a fifth cavity antenna, the first cavity antenna is a main cavity antenna, the second cavity antenna is a diversity antenna, the third cavity antenna is a first MIMO antenna, the fourth cavity antenna is a second MIMO antenna, and the fifth cavity antenna is at least any one of a Beidou antenna, a GPS positioning antenna, a WIFI antenna and a BT antenna.

[0017] The present application provides an antenna structure and an electronic device, wherein the antenna structure includes a metal shell, a metal main board and a plurality of grounding plates; the metal shell includes a metal bottom plate and a metal frame surrounding the metal bottom plate and in a closed structure, the metal bottom plate and the metal frame are integrally formed to form a first cavity; a plurality of grounding plates are arranged in the first cavity, and a second cavity is formed around the first cavity; the metal main board is laid on the plurality of grounding plates, and a gap is formed between the metal frames; a plurality of metal ground blocks for connecting the metal shell, the metal main board and the grounding plate are arranged in the gap; wherein at least part of the metal ground blocks, the metal main board, the grounding plate, the metal bottom plate and the metal frame form one or more cavity antennas around each other. wherein the metal frame of the metal shell is a closed structure, and there are no breakpoints and slots on the entire metal frame, which can make the appearance of the electronic device using the antenna structure more beautiful and avoid affecting the appearance of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The technical solution and other beneficial effects of the present application will be made apparent by describing in detail the specific implementation methods of the present application in conjunction with the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure when no metal main board is provided in the antenna structure provided in an embodiment of the present application.

[0020] Figure 2 A schematic diagram of the three-dimensional structure of the antenna structure provided in an embodiment of the present application.

[0021] Figure 3 A schematic diagram of the connection of the ground plate in the antenna structure provided in an embodiment of the present application.

[0022] Figure 4 A schematic structural diagram of five cavity antennas and five isolation cavities in the antenna structure provided in an embodiment of the present application. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance or implicitly indicating the number of technical features indicated. The features specified as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0025] Please also read Figure 1 and Figure 2 The present embodiment provides an antenna structure, wherein the antenna structure includes a metal shell 10, a plurality of ground plates 20 and a metal main board 31; the metal shell 10 includes a metal bottom plate 11 and a metal frame 12 surrounding the metal bottom plate 11 and forming a closed structure, wherein the metal bottom plate 11 and the metal frame 12 are integrally formed to form a first cavity; a plurality of ground plates 20 are arranged in the first cavity, and a second cavity is formed around the first cavity; the metal main board 31 is laid on the plurality of ground plates 20, and a gap is formed between the metal frames 12; a plurality of metal ground blocks 41 for connecting the metal shell 10, the metal main board 31 and the ground plate 20 are arranged in the gap; wherein one or more cavity antennas 50 are formed around at least part of the metal ground blocks 41, the metal main board 31, the ground plate 20, the metal bottom plate 11 and the metal frame 12.

[0026] The metal shell 10 in this embodiment is integrally formed into a box shape, and the metal frame 12 of the metal shell 10 is a closed structure. There are no breakpoints and slots on the entire metal frame 12, which can make the appearance of the electronic device using the antenna structure provided by this embodiment more beautiful and avoid affecting the appearance of the electronic device.

[0027] In some embodiments, at least part of the metal ground block 41 and the metal main board 31, the metal bottom plate 11, the metal bottom plate 11 and the metal frame 12 form a cavity antenna 50 or multiple cavity antennas 50. Specifically, multiple metal ground blocks 41 divide the metal frame 12 into multiple frame segments; a feeding point 501 is correspondingly provided on the frame segment corresponding to the cavity antenna 50. One or more isolation cavities 60 are formed around another part of the metal ground block 41, the metal main board 31, the ground plate 20, the metal bottom plate 11 and the metal frame 12. Among them, the isolation cavity 60 can be filled as needed. The difference between the isolation cavity 60 and the cavity antenna 50 in this embodiment is that a feeding point 501 is provided on the frame segment corresponding to the cavity antenna 50, and the feeding point 501 is the signal source from the metal main board 31 to the antenna, and the cavity without the feeding point 501 is used as an isolation cavity 60, which plays a certain isolation role and increases the isolation between the cavity antennas 50.

[0028] Therefore, after the metal frame 12 is divided into multiple frame segments by multiple metal blocks 41, multiple cavities are formed by combining the frame segments, the metal bottom plate 11, the metal main plate 31 and the ground plate 20, wherein a part of the cavities is used to form the cavity antenna 50, and another part of the cavities can be used to form the isolation cavity 60, thereby improving the antenna performance of the overall antenna structure. Among them, the specific number of cavity antennas 50 and the number of isolation cavities 60 are set according to the needs of the actual electronic equipment, and this application does not limit this.

[0029] In some embodiments, each grounding plate 20 is not parallel to the plane where the metal bottom plate 11 is located, and the distance from the side of each grounding plate 20 away from the metal bottom plate 11 to the metal bottom plate 11 is the same. That is, the grounding plate 20 in this embodiment is not stacked on the metal bottom plate 11, so the grounding plate 20 can be vertically arranged on the metal bottom plate 11, or can be inclined on the metal bottom plate 11. The distance from the side of each grounding plate 20 away from the metal bottom plate 11 to the metal bottom plate 11 is equal, thereby ensuring that the metal main board 31 can be laid flat on the grounding plate 20 and fit with one side of each grounding plate 20, avoiding a gap or a gap in one of the side walls of the cavity antenna 50 to affect the performance of the antenna.

[0030] See also Figure 3As an embodiment, four grounding plates 20 may be provided, and the four grounding plates 20 are respectively a first grounding plate 21, a second grounding plate 22, a third grounding plate 23 and a fourth grounding plate 24, and the four grounding plates 20 are vertically arranged around the first cavity to form a second cavity. The metal main board 31 is laid flat on the four grounding plates 20. The size or dimensions of the four grounding plates 20 may be set according to actual needs. For example, changing the length of the four grounding plates 20 may reduce the area occupied by the second cavity, thereby increasing the cavity volume of the cavity antenna 50, and further changing the resonance of the cavity antenna 50; conversely, if the length of the four grounding plates 20 is increased, the area occupied by the second cavity may be increased, thereby reducing the cavity volume of the cavity antenna 50, and further changing the resonance of the cavity antenna 50.

[0031] In some embodiments, the distance from the side of the metal frame 12 away from the metal bottom plate 11 to the metal bottom plate 11, the distance from the side of the metal ground block 41 away from the metal bottom plate 11 to the metal bottom plate 11, and the distance from the metal main board 31 to the metal bottom plate 11 are equal. In this embodiment, the distance from one side of the metal frame 12 to the metal bottom plate 11, the distance from one side of the metal ground block 41 to the metal bottom plate 11, and the distance from the metal main board 31 to the metal bottom plate 11 are set to be equal, thereby ensuring that there are no gaps around the cavity antenna 50, thereby improving the performance of the cavity antenna 50.

[0032] In some embodiments, when the antenna structure has multiple cavity antennas 50, the lengths of the frame segments corresponding to at least two cavity antennas 50 are different. Frame segments of different lengths can make the cavity sizes of the cavity antennas 50 inconsistent, so as to form multiple cavity antennas 50 with different resonances to meet the application requirements of electronic devices.

[0033] In some embodiments, when the antenna structure has multiple cavity antennas 50, at least two cavity antennas 50 have different shapes. Similarly, cavity antennas 50 of different shapes may make the cavity sizes of the cavity antennas 50 inconsistent, so as to form multiple cavity antennas 50 with different resonances to meet the application requirements of electronic devices.

[0034] As an embodiment, the shape of the cavity antenna 50 includes at least any one of U-shape, L-shape and straight shape; of course, depending on the position of the ground plate 20, the cavity antenna 50 may also present an irregular shape; the shape of the cavity antenna 50 can be specifically set according to actual needs, and this application does not limit this.

[0035] Please also read Figure 4As an embodiment, ten metal blocks 41 are provided in the antenna structure in this embodiment, and the ten metal blocks 41 divide the metal frame 12 into ten frame segments, thereby forming ten cavities. Among them, five of the cavities are used to set the feeding point 501 to form a cavity antenna 50, and the remaining five cavities form an isolation cavity 60. The five cavity antennas 50 are respectively a first cavity antenna 51, a second cavity antenna 52, a third cavity antenna 53, a fourth cavity antenna 54 and a fifth cavity antenna 55. Among them, the metal blocks 41 at both ends of each cavity antenna 50 can be moved and adjusted as needed, thereby changing the size of the cavity, so as to change the resonance of the antenna and realize multiple required frequency bands.

[0036] For example, the first cavity antenna 51 in this embodiment is U-shaped and is located below the entire antenna structure. The first cavity antenna 51 can achieve frequency bands including 700MHz-960MHz or 1710MHz-2690 / MHz or 3300MHz-4200 MHz; when the antenna structure is applied to an electronic device, the first cavity antenna 51 can achieve the main antenna performance of the electronic device.

[0037] The second cavity antenna 52 in this embodiment is L-shaped and located in the upper right corner of the entire antenna structure. The second cavity antenna 52 can achieve frequency bands including 700MHz-960MHz or 1710MHz-2690MHz or 3300MHz-4200MHz. When the antenna structure is applied to electronic devices, the second cavity antenna 52 can achieve diversity antenna performance of the electronic device.

[0038] The third cavity antenna 53 in this embodiment is linear and located on the left side of the entire antenna structure. The achievable frequency bands of the third cavity antenna 53 include 1710MHz-2690MHz or 3300MHz-4200MHz. When the antenna structure is applied to electronic devices, the third cavity antenna 53 can also achieve the MIMO (Multiple Input Multiple Output) antenna performance of the electronic device, forming the first MIMO antenna in the electronic device.

[0039] The fourth cavity antenna 54 in this embodiment is linear and located on the right side of the entire antenna structure. The frequency bands that can be achieved by the fourth cavity antenna 54 include 1710MHz-2690MHz or 3300MHz-4200MHz. When the antenna structure is applied to electronic devices, the fourth cavity antenna 54 can also achieve the MIMO (Multiple Input Multiple Output) antenna performance of the electronic device, forming the second MIMO antenna in the electronic device.

[0040] The fifth cavity antenna 55 in this embodiment is L-shaped and located at the upper left of the entire antenna structure. When the antenna structure is applied to an electronic device, the fifth cavity antenna 55 can realize any one of the Beidou antenna, GPS positioning antenna, WIFI antenna and BT antenna of the electronic device.

[0041] An embodiment of the present application further provides an electronic device, which includes the above-mentioned antenna structure. Since the antenna structure has been described in detail above, it will not be repeated here.

[0042] As an embodiment, when the antenna structure has a first cavity antenna, a second cavity antenna, a third cavity antenna, a fourth cavity antenna and a fifth cavity antenna, the first cavity antenna is a main collection antenna, the second cavity antenna is a diversity antenna, the third cavity antenna is a first MIMO antenna, the fourth cavity antenna is a second MIMO antenna, and the fifth cavity antenna is any one of a Beidou antenna, a GPS positioning antenna, a WIFI antenna and a BT antenna, thereby realizing various communication needs of electronic devices.

[0043] The antenna structure provided in the embodiments of the present application is introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An antenna structure, characterized in that: The antenna structure comprises: A metal shell, the metal shell comprising a metal bottom plate and a metal frame surrounding the metal bottom plate and forming a closed structure, the metal bottom plate and the metal frame being integrally formed to form a first cavity; A plurality of grounding plates, wherein the plurality of grounding plates are arranged in the first cavity and surround the second cavity; A metal main board, wherein the metal main board is laid on the multiple grounding plates and forms a gap with the metal frame; the gap is provided with multiple metal ground blocks for connecting the metal shell, the metal main board and the grounding plate; wherein one or more cavity antennas are formed around at least part of the metal ground blocks, the metal main board, the grounding plate, the metal bottom plate and the metal frame.

2. The antenna structure according to claim 1, characterized in that: One or more isolation cavities are formed around another part of the metal ground block, the metal main board, the grounding plate, the metal bottom plate and the metal frame.

3. The antenna structure according to claim 1, characterized in that: Each of the grounding plates is not parallel to the plane where the metal bottom plate is located, and the distance from one side of each of the grounding plates away from the metal bottom plate to the metal bottom plate is the same.

4. The antenna structure according to claim 2, characterized in that: The plurality of metal blocks divide the metal frame into a plurality of frame segments; and feeding points are correspondingly arranged on the frame segments corresponding to the cavity antenna.

5. The antenna structure according to claim 3, characterized in that: The distance from the side of the metal frame away from the metal base plate to the metal base plate, the distance from the side of the metal block away from the metal base plate to the metal base plate, and the distance from the metal main board to the metal base plate are equal.

6. The antenna structure according to claim 4, characterized in that: When the antenna structure has a plurality of the cavity antennas, the frame segments corresponding to at least two of the cavity antennas have different lengths.

7. The antenna structure according to claim 4, characterized in that: When the antenna structure has a plurality of the cavity antennas, at least two of the cavity antennas have different shapes.

8. The antenna structure according to claim 7, characterized in that: The shape of the cavity antenna includes at least any one of a U-shape, an L-shape and a straight shape.

9. An electronic device, characterized in that: The electronic device comprises the antenna structure according to any one of claims 1-8.

10. The electronic device according to claim 9, characterized in that: When the antenna structure comprises a first cavity antenna, a second cavity antenna, a third cavity antenna, a fourth cavity antenna and a fifth cavity antenna, the first cavity antenna is a main cavity antenna, the second cavity antenna is a diversity antenna, the third cavity antenna is a first MIMO antenna, the fourth cavity antenna is a second MIMO antenna, and the fifth cavity antenna is at least any one of a Beidou antenna, a GPS positioning antenna, a WIFI antenna and a BT antenna.

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