CN112490628A

CN112490628A - Electronic device

Info

Publication number: CN112490628A
Application number: CN202011381438.0A
Authority: CN
Inventors: 刘晋宏; 李克
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-03-12
Anticipated expiration: 2040-11-30
Also published as: WO2022111445A1; CN112490628B

Abstract

The application discloses electronic equipment relates to communication technology field, electronic equipment includes: a middle frame and a plurality of antennas; the middle frame comprises a metal frame and a first plastic frame, and the first plastic frame is wrapped outside the metal frame; the plurality of antennas are arranged on the first plastic frame and are arranged around the first plastic frame at intervals; the antenna includes: the radiator and respectively with feed body and the grounding body that the radiator electricity is connected, the radiator sets up keep away from of first plastic frame one side of metal crate. This application can make the headroom region of antenna is great, promotes the radiation performance of antenna, moreover, can avoid setting up the fracture on first plastic frame and separate two adjacent antennas, reduces the processing cost of center, improves the structural strength of center.

Description

Electronic device

Technical Field

The application belongs to the technical field of communication, and particularly relates to an electronic device.

Background

With the increasing abundance of functions of electronic devices such as mobile phones and tablet computers, the communication frequency bands of the electronic devices are increasing, and accordingly, the number and performance of antennas in the electronic devices are also increasing continuously.

In the prior art, an antenna of an electronic device is usually integrated on a middle frame. The specific process is as follows: die-casting the antenna structure on a metal frame; then, carrying out injection molding on the metal frame and the plastic part, and wrapping the metal frame in the plastic part to obtain a middle frame; and finally, arranging a plurality of fractures on the middle frame, splitting the antenna structure into a plurality of antennas, and disconnecting two adjacent antennas by using the fractures to avoid short circuit of the antennas.

In the process of implementing the present application, the inventor finds that at least the following problems exist in the prior art: because the antenna structure needs to be die-cast on the metal frame, the thickness of the antenna itself is usually thick, and therefore, the distance from the antenna to the electronic device inside the electronic device is short, the clearance area of the antenna is small, and the radiation performance of the antenna is affected. Moreover, because a plurality of fractures need to be arranged on the middle frame, the processing cost of the middle frame is increased, and the structural strength of the middle frame is low.

Disclosure of Invention

The present application aims to provide an electronic device, which at least solves one of the problems of small clearance area of an antenna and low structural strength of a middle frame.

In order to solve the technical problem, the present application is implemented as follows:

an embodiment of the present application provides an electronic device, which includes: a middle frame and a plurality of antennas; wherein the content of the first and second substances,

the middle frame comprises a metal frame and a first plastic frame, and the first plastic frame is coated outside the metal frame;

the plurality of antennas are arranged on the first plastic frame and are arranged around the first plastic frame at intervals;

the antenna includes: the radiator and respectively with feed body and the grounding body that the radiator electricity is connected, the radiator sets up keep away from of first plastic frame one side of metal crate.

In the embodiment of the application, through at the outer first plastic frame of cladding of metal framework, and set up the antenna on the surface of first plastic frame, can make antenna thickness thinner, in addition will the radiator of antenna is kept away from first plastic frame is kept away from one side setting of metal framework can make the radiator distance of antenna with the distance of the inside electronic device of metal framework and electronic equipment is far away, and then, can make the headroom region of antenna is great, promotes the radiation performance of antenna. And, keep the certain distance between two adjacent antennas and can realize keeping off, just so, just can avoid setting up the fracture on first plastic frame and separate two adjacent antennas, reduce the processing cost of center, improve the structural strength of center.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of an electronic device according to the prior art;

FIG. 2 is a schematic cross-sectional view of the electronic device shown in FIG. 1 at position A-A;

FIG. 3 is a schematic view of the electronic device shown in FIG. 1 from another angle;

FIG. 4 is a schematic structural diagram of an electronic device according to an embodiment of the invention;

FIG. 5 is a schematic cross-sectional view of the electronic device shown in FIG. 4 at a location B-B;

FIG. 6 is a schematic structural diagram of a first plastic frame according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of another first plastic frame according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of another first plastic frame according to an embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram of a first plastic frame according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of a first plastic frame according to an embodiment of the present disclosure;

fig. 11 is a schematic structural diagram of a radiator according to an embodiment of the present application;

FIG. 12 is a schematic structural diagram of a structural unit of an embodiment of the present application;

FIG. 13 is a schematic structural diagram of an array unit according to an embodiment of the present application;

reference numerals: 100-plastic part, 200-metal frame, 300-antenna, 400-fracture, 10-metal frame, 11-first plastic frame, 111-frame part, 1111-first surface, 1112-second surface, 1113-third surface, 112-embedded part, 113-slot structure, 12-radiator, 121-first radiator, 122-second radiator, 123-third radiator, 124-second coupling part, 120-structure unit, 1201-microstrip feed line, 1202-array unit, 1203-dielectric substrate, 1204-floor, 13-feed body, 131-first coupling part, 14-grounding body, 15-microstrip power divider, 16-second plastic frame.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The features of the terms first and second in the description and in the claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specified. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

With reference to fig. 1 to 3, a schematic structural diagram of an electronic device in the prior art is described. Referring to fig. 1, a schematic structural diagram of an electronic device in the prior art is shown, referring to fig. 2, a schematic structural cross-sectional diagram of a-a position of the electronic device shown in fig. 1 is shown, and referring to fig. 3, a schematic structural diagram of the electronic device shown in fig. 1 at another angle is shown.

In the conventional electronic device, it is usually necessary to die-cast the antenna structure on the metal frame 200, and then, after the metal frame 200 and the injection molding part 100 are injection molded, the metal frame 200 and the antenna structure are wrapped inside the plastic part 100 to obtain the middle frame. Finally, a plurality of fractures 400 are arranged on the middle frame, the antenna structure is split into a plurality of antennas 300, and two adjacent antennas 300 are disconnected by the fractures 400, so that short circuit of the antennas is avoided.

As shown in fig. 2, since the antenna needs to be die-cast on the metal frame 200, the thickness a of the antenna 300 itself is usually thicker, and the thickness a is about 1.0-1.5mm, so that the antenna 300 is closer to the electronic device inside the electronic device, the clearance area b of the antenna is smaller, and the thickness b1 is about 1.0-2.0mm, which affects the radiation performance of the antenna 300. Moreover, during the molding process of the metal frame 200 and the injection molded part 100, the antenna 300 is more likely to be broken under the action of the injection molding pressure, further reducing the performance of the antenna 300. In addition, since a plurality of fractures 400 need to be formed in the middle frame, not only the processing cost of the middle frame is increased, but also the structural strength of the middle frame is lowered.

Electronic devices of embodiments of the present invention are described below in conjunction with fig. 4-12. Referring to fig. 4, a schematic structural diagram of an electronic device according to an embodiment of the present invention is shown, and referring to fig. 5, a schematic cross-sectional structural diagram of a position B-B of the electronic device shown in fig. 4 is shown.

In an embodiment of the present invention, the electronic device may include: a middle frame and a plurality of antennas; the middle frame may include a metal frame 10 and a first plastic frame 11, and the first plastic frame 11 is wrapped outside the metal frame 10; the antennas are arranged on the first plastic frame 11 and are arranged around the first plastic frame 11 at intervals; the antenna may specifically include: the radiator 12 is arranged on one side of the first plastic frame 11 far away from the metal frame 10, and the feed body 13 and the grounding body 14 are respectively electrically connected with the radiator 12.

In practical application, the first plastic frame 11 may be covered outside the metal frame 10 by injection molding, and then a plurality of antennas may be formed on the first plastic frame 11. As the process of injection molding the antenna and the first plastic frame 11 is avoided, the antenna does not need to bear injection molding pressure, and therefore, the thickness of the antenna can be thinner, and the antenna is not easy to break.

As shown in fig. 5, the radiator 12 of the antenna may have a sheet-like structure, and the thickness of the radiator 12 may be about 0.02 mm. In addition, the radiator 12 is disposed on the side of the first plastic frame 11 away from the metal frame 10, so that the distance between the radiator 12 and the metal frame 10 and the electronic devices inside the electronic device is relatively long, and further, the clearance area c of the antenna is relatively large, the thickness of c can reach about 2.98-3.45mm, and the radiation performance of the antenna is greatly improved.

Moreover, in the embodiment of the present application, the partition can be realized by keeping a certain distance between two adjacent antennas, so that it can be avoided that a fracture is formed on the first plastic frame 11 to partition the two adjacent antennas, the processing cost of the middle frame is reduced, and the structural strength of the middle frame is improved. Further, the processing cost of the electronic device can be reduced, and the structural strength of the electronic device can be improved.

In practical applications, the radiator 12 of the antenna may be used for radiating or receiving radio frequency signals. The feeder 13 may be configured to feed an electrical signal of a radio frequency module inside the electronic device to the radiator 12, and feed a radio frequency signal received by the radiator 12 to the radio frequency module inside the electronic device. The ground body 14 may be a contact, a pin, an electrical connector, etc., and the ground body 14 may be used to make a connection between the radiator 12 and a ground reference.

In some optional embodiments of the present application, the first plastic frame 11 may be made of LDS (Laser Direct Structuring), and the antenna is an LDS antenna.

Specifically, the first plastic frame 11 may be made of LDS plastic. The LDS plastic is a production technology of professional laser processing, ejection and electroplating processes, common plastic elements can be endowed with an electrical interconnection function by adding certain raw materials containing special components into the plastic, a circuit board can be directly printed on the LDS plastic in a three-dimensional mode by utilizing a laser technology, the traditional circuit board is not needed, the circuit design is more flexible, and most importantly, the volume of a product can be obviously reduced.

In the embodiment of the present application, a plurality of LDS antennas can be directly manufactured on the first plastic frame 11 by the LDS technology, so that the thickness of the LDS antenna can be designed to be thinner, and the clearance area of the LDS antenna is increased. Moreover, the LDS antenna can be flexibly disposed at any position of the first plastic frame 11, which is beneficial to the flexible layout of the LDS antenna. In addition, a fracture can be prevented from being arranged on the first plastic frame 11 to separate two adjacent LDS antennas, the processing cost of the middle frame is reduced, and the structural strength of the middle frame is improved.

In other alternative embodiments of the present application, the surface of the first plastic frame 11 is provided with a groove, and the antenna can be embedded in the groove.

Specifically, a groove may be formed in an area where the antenna needs to be disposed on the first plastic frame 11 by a processing method such as mold forming or removing processing, and then the sheet-shaped antenna is embedded in the groove. In practical applications, in order to increase the connection strength between the antenna and the first plastic frame 11, the antenna may be in interference fit with the first plastic frame 11, or an adhesive layer may be disposed between the antenna and the groove. The embodiment of the present application does not limit this.

It should be noted that, when the antenna is embedded in the groove of the first plastic frame 11 in an embedded manner, in order to increase the clearance area of the antenna, the antenna may be a sheet-shaped antenna, and in order to reduce the processing cost of the electronic device, the material of the first plastic frame 11 may be at least one of polycarbonate plastic, glass fiber polycarbonate plastic, and glass fiber polyamide plastic.

Referring to fig. 6, which shows a schematic structural diagram of a first plastic frame according to an embodiment of the present disclosure, as shown in fig. 6, the first plastic frame 11 may include: a frame portion 111 and an insertion portion 112; the frame part 111 is wrapped around the metal frame 10, the embedded part 112 can be embedded in the metal frame 10, and the embedded part 112 is connected with the frame part 111; the radiator 12 is provided on the side of the frame portion 111 away from the metal frame 10, and the power feeding body 13 and the ground body 14 may be provided on the insertion portion 112.

In practical applications, the electronic components inside the electronic device are usually disposed inside the metal frame 10. Because the bezel portion 111 is wrapped outside the metal frame 10, and the radiator 12 is disposed on one side of the bezel portion 111 far away from the metal frame 10, the radiator 12 can be conveniently far away from the metal frame 10 and the electronic device inside the electronic device is disposed, the clearance area of the antenna is increased, and the radiation performance of the antenna is improved. Since the embedded portion 111 is embedded in the metal frame 10, the distance between the embedded portion 111 and the electronic device inside the electronic apparatus is short, and the distance between the power feeding body 13 and the electronic device inside the electronic apparatus can be short by disposing the power feeding body 13 and the grounding body 14 in the embedded portion 112. Thereby, it is advantageous for the feeding body 13 to feed the electrical signal of the rf module inside the electronic device to the radiating body 12, or to feed the rf signal received by the radiating body 12 to the rf module inside the electronic device, and to facilitate the connection between the grounding body 14 and the reference ground inside the electronic device.

Referring to fig. 7, which is a schematic structural diagram of another first plastic frame according to an embodiment of the present disclosure, as shown in fig. 7, the number of radiators 12 is multiple, and the antenna may further include a microstrip power divider 15; one end of the microstrip power divider 15 is electrically connected to the feeding body 13, the other end of the microstrip power divider 15 is connected to the plurality of radiating bodies 12, and the microstrip power divider 15 may be configured to transmit feeding power input by the feeding body 13 to the radiating bodies 12.

In practical applications, when the feeder 13 feeds a radio frequency signal of a radio frequency module in the electronic device, the microstrip power divider 15 may equally divide the feeding power input by the feeder 13 into multiple equal parts, and respectively transmit the multiple parts to the multiple radiators 12, so as to radiate the radio frequency signal through the multiple radiators 12. In the embodiment of the application, the plurality of radiators 12 are arranged in the antenna, so that the coverage area of the antenna is increased, and the electronic device can obtain better communication quality.

In some optional embodiments of the present application, the bezel part 111 may include: a first surface 1111, a second surface 1112 and a third surface 1113 which are orthogonal, wherein the first surface 1111 is disposed on a side of the frame portion 111 away from the metal frame 10; the radiator 12 includes a first radiator 121, a second radiator 122 and a third radiator 123, the first radiator 121 is disposed on the first surface 1111, the second radiator 122 is disposed on the second surface 1112, and the third radiator 123 is disposed on the third surface 1113.

In this embodiment, because the first surface 1111, the second surface 1112 and the third surface 1113 are orthogonal, the first radiator 121, the second radiator 122 and the third radiator 123 may be orthogonal correspondingly, so that the radiation superposition effect of the first radiator 121, the second radiator 122 and the third radiator 123 may be improved, mutual cancellation of the radio frequency signals radiated by the first radiator 121, the second radiator 122 and the third radiator 123 in some directions is avoided, and the coverage area of the antenna is further increased to improve the radiation performance of the antenna.

In practical applications, a person skilled in the art may also set the first radiator 121, the second radiator 122, and the third radiator 123 on arbitrary non-orthogonal surfaces according to actual needs, and the relative positions of the first radiator 121, the second radiator 122, and the third radiator 123 in the embodiment of the present application may not be limited.

Alternatively, the microstrip power divider 15 is a conductor disposed on the surface of the frame portion 111 by an LDS process. In practical applications, in the case that the first plastic frame 11 is made of an LDS material, the microstrip power divider 15 may be formed on the frame portion 111 of the first plastic frame 11 by an LDS process. Therefore, the design of the microstrip power divider 15 is facilitated to be light and thin, and the layout flexibility of the microstrip power divider 15 can be greatly improved.

As shown in fig. 6 and 7, the feed 13 and the radiator 12 may be directly connected to each other, so as to electrically connect the feed 13 and the radiator 12. In practical application, the electric connection between the feed body 13 and the radiation body 12 is realized by adopting a direct conduction mode, so that the electric connection mode between the feed body 13 and the radiation body 12 is simpler and is easy to realize, the processing cost of the antenna can be reduced, and further, the processing cost of the electronic equipment can be reduced.

Referring to fig. 8, which shows a schematic structural diagram of another first plastic frame according to an embodiment of the present disclosure, as shown in fig. 8, a first coupling portion 131 is disposed at one end of a feeder 13 close to a radiator 12, a second coupling portion 124 is disposed at a position of the radiator 12 opposite to the first coupling portion 131, and the second coupling portion 124 is spaced apart from the first coupling portion 131 to couple the radiator 12 and the feeder 13.

Specifically, when the radiator 12 and the feeder 13 are electrically connected by coupling, the radiator 12 and the feeder 13 are not directly conducted, and the first coupling portion 131 and the second coupling portion 124 are coupled at a certain distance from each other to transmit a high-frequency rf signal. In practical application, when the radiator 12 and the feeder 13 are coupled, the bandwidth of the antenna can be adjusted by adjusting the coupling amount between the radiator and the feeder, which is beneficial for the antenna to obtain better bandwidth.

For example, the distance between the first coupling part 131 and the second coupling part 124 may be represented by c1, the lengths of the first coupling part 131 and the second coupling part 124 may be represented by c2, c1 is typically about 0.1-1.5mm, and c2 is typically about 1.0-15 mm. In practical applications, by adjusting the values of c1 and c2, the coupling amount between radiator 12 and feed 13 can be adjusted to adjust the bandwidth of the antenna, so that the antenna obtains better bandwidth.

Referring to fig. 9, which shows a schematic structural view of another first plastic frame according to an embodiment of the present disclosure, as shown in fig. 9, the frame part 111 may include: a first surface 1111, a second surface 1112 and a third surface 1113 which are orthogonal, wherein the first surface 1111 is disposed on a side of the frame portion 111 away from the metal frame 10; the frame portion 111 is further provided with an inwardly concave slot structure 113, the antenna is disposed on the slot structure 113, the slot structure 113 includes a first slot wall and a second slot wall that are disposed oppositely, the first coupling portion 131 is disposed on the first slot wall, and the second coupling portion 124 is disposed on the second slot wall.

In practical application, the surface of the slot structure 113 can be used for arranging antennas, and by arranging the antennas in the slot structure, the overall length and area of the radiator 12 of the antennas can be changed, the length of the current path of the radiator 12 is changed, the purpose of adjusting the working frequency band of the antennas is achieved, and the realization of wider bandwidth and better antenna performance is facilitated.

As shown in fig. 9, the slot structure 113 may be disposed on the second surface 1112; the radiator 12 may be disposed on the first surface 1111 and electrically connected to the feeding portion 12 through the slot structure 113.

In practical applications, when the slot structure 113 is disposed on the second surface 1112 and the radiator 12 is disposed on the first surface 1111, only the length d2 of the slot structure 113 needs to be set to the length required for coupling the first coupling portion 131 and the second coupling portion 124, and the distance d1 between the first slot wall and the second slot wall needs to be set to the gap required for coupling the first coupling portion 131 and the second coupling portion 124, so that the overall volume of the slot structure 113 is small, and thus the influence of the slot structure 113 on the strength of the first plastic frame 11 can be reduced, and the first plastic frame 11 can maintain high strength.

Referring to fig. 10, which shows a schematic structural diagram of another first plastic frame according to an embodiment of the present disclosure, as shown in fig. 10, the slot structure 113 may be disposed on the first surface 1111, and a groove bottom of the slot structure 113 is close to the metal frame 10. In practical applications, in the case that the slot structure 113 is disposed on the first surface 1111, the first slot wall and the second slot wall of the slot structure 113 may be parallel to the second surface 1112, the distance between the first slot wall and the second slot wall may be represented by e2, the depth of the slot structure 113 may be represented by e1, and the length of the slot structure 113 may be set according to the required radiation area of the antenna, so as to increase the radiation area of the antenna as much as possible, and further improve the performance of the antenna.

Alternatively, in the case that the slot structure 113 is disposed on the first surface 1111, the radiator 12 may be disposed on a slot wall of the slot structure 113 far from the second surface 1112, so that not only the radiation area of the radiator 12 may be increased, but also the clearance area of the radiator 12 may be increased, further improving the performance of the antenna.

In practical applications, the dimensions d1, d2, d3, e1, and e2 of the slot structure 113 in fig. 9 and 10 may be adjusted according to the antenna operating frequency band without exceeding the external dimensions of the bezel portion 111, which is not limited in this embodiment of the present application.

In some optional embodiments of the present application, the material of the metal frame 10 may include: the metal frame 10 may be made of at least one of a magnesium alloy, an aluminum alloy, a zinc alloy, and a titanium alloy.

In some optional embodiments of the present application, the middle frame may further include: the second plastic frame 16, the second plastic frame 16 covers the first plastic frame 11 to protect the first plastic frame 11.

Specifically, the material of the second plastic frame 16 may include, but is not limited to, at least one of polycarbonate plastic, glass fiber polycarbonate plastic, and glass fiber polyamide plastic, and the specific material of the second plastic frame 16 in the embodiments of the present application may not be limited.

Optionally, the surface of the second plastic frame 16 away from the first plastic frame 11 may be surface treated to enhance the aesthetic appearance. For example, the surface treatment process may be at least one of spraying and plating, which is not limited in the embodiments of the present application.

Referring to fig. 11, which is a schematic structural diagram of a radiator according to an embodiment of the present disclosure, as shown in fig. 11, structural units 120 may be disposed on a radiator 12 in an array, the structural units 120 may be regularly arranged to form an array, and the number and the spacing of the structural units 120 may be set according to the design requirement of the antenna.

Referring to fig. 12, which shows a schematic structural diagram of a structural unit according to an embodiment of the present application, as shown in fig. 12, the structural unit 120 may include a microstrip feed line 1201, an array unit 1202, a dielectric substrate 1203, and a floor 1204. In practical applications, the microstrip feed line 1201, the array unit 1202 and the floor 1204 may be thin conductors formed by processes such as LDS, and the dielectric substrate 1203 may be a plastic material of the frame portion 111 or another dielectric substrate embedded therein.

Referring to fig. 13, a schematic structural diagram of an array unit in the embodiment of the present application is shown, and as shown in fig. 13, the shape of the array unit 1202 may include a circle, a rectangle, and various irregular shapes, and the embodiment of the present application does not specifically limit the shape of the real unit 1202.

In summary, the electronic device described in the present application may include at least the following advantages:

in the embodiment of the application, through at the outer first plastic frame of cladding of metal frame, and set up the antenna on the surface of first plastic frame, can make the antenna thickness thinner, in addition will the radiator of antenna is kept away from first plastic frame is kept away from one side setting of metal frame can be so that the radiator distance of antenna with the distance of the inside electronic device of metal frame and electronic equipment is far away, and then, can make the headroom region of antenna is great, promotes the radiation performance of antenna. And, keep the certain distance between two adjacent antennas and can realize keeping off, just so, just can avoid setting up the fracture on first plastic frame and separate two adjacent antennas, reduce the processing cost of center, improve the structural strength of center.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electronic device, characterized in that the electronic device comprises: a middle frame and a plurality of antennas; wherein the content of the first and second substances,

the middle frame comprises a metal frame (10) and a first plastic frame (11), and the first plastic frame (11) is coated outside the metal frame (10);

the antennas are arranged on the first plastic frame (11) and are arranged around the first plastic frame (11) at intervals;

the antenna includes: radiator (12) and respectively with feed body (13) and the grounding body (14) that radiator (12) electricity is connected, radiator (12) set up keep away from of first plastic frame (11) one side of metal frame (10).

2. The electronic device of claim 1, wherein the first plastic frame (11) is made of LDS, and the antenna is an LDS antenna.

3. The electronic device of claim 1, wherein a surface of the first plastic frame (11) is provided with a groove, and the antenna is embedded in the groove.

4. The electronic device of claim 1, wherein the first plastic frame (11) comprises a frame portion (111) and an embedded portion (112); wherein the content of the first and second substances,

the side frame part (111) is covered outside the periphery of the metal frame (10), the embedding part (112) is embedded in the metal frame (10), and the embedding part (112) is connected with the side frame part (111);

the radiator (12) is disposed on a side of the frame portion (111) away from the metal frame (10), and the feed body (13) and the ground body (14) are disposed on the insertion portion (112).

5. The electronic device according to claim 4, characterized in that the number of radiators (12) is plural, and the antenna further comprises a microstrip power divider (15);

one end of the microstrip power divider (15) is electrically connected with the feed body (13), the other end of the microstrip power divider (15) is connected with the radiating bodies (12), and the microstrip power divider (15) is used for transmitting the feed power input by the feed body (13) to the radiating bodies (12).

6. The electronic device according to claim 5, wherein the bezel portion (111) comprises: a first surface (1111), a second surface (1112) and a third surface (1113) which are orthogonal, wherein the first surface (1111) is arranged on one side of the frame part (111) far away from the metal frame (10);

the radiator (12) includes a first radiator (121), a second radiator (122) and a third radiator (123), the first radiator (121) set up in first surface (1111), the second radiator (122) set up in second surface (1112), the third radiator (123) set up in third surface (1113).

7. The electronic device according to claim 5, wherein the microstrip power divider (15) is a conductor disposed on the surface of the frame portion (111) by an LDS process.

8. An electronic device as claimed in claim 4, characterized in that conduction is provided between the feed (13) and the radiator (12).

9. The electronic device according to claim 4, wherein the feed (13) is provided with a first coupling portion (131) at an end close to the radiator (12), the radiator (12) is provided with a second coupling portion (124) at a position opposite to the first coupling portion (131), and the second coupling portion (124) is spaced apart from the first coupling portion (131) so as to achieve coupling between the radiator (12) and the feed (13).

10. The electronic device according to claim 9, wherein the bezel portion (111) includes: a first surface (1111), a second surface (1112) and a third surface (1113) which are orthogonal, wherein the first surface (1111) is arranged on one side of the frame part (111) far away from the metal frame (10);

the antenna comprises a frame portion (111) and is characterized in that an inwards-concave slot structure (113) is further arranged on the frame portion (111), the antenna is arranged on the slot structure (113), the slot structure (113) comprises a first slot wall and a second slot wall which are oppositely arranged, a first coupling portion (131) is arranged on the first slot wall, and a second coupling portion (124) is arranged on the second slot wall.

11. The electronic device of claim 10, wherein the slot structure (113) is disposed on the first surface (1111), and a slot bottom of the slot structure (113) is adjacent to the metal frame (10).

12. The electronic device according to claim 11, wherein the radiator (12) is arranged in a slot wall of the slot structure (113) remote from the second surface (1112).

13. The electronic device of claim 10, wherein the slot structure (113) is disposed on the second surface (1112);

the radiator (12) is disposed on the first surface (1111) and electrically connected to the feeding portion (12) through the slit structure (113).

14. The electronic device according to claim 1, wherein the material of the metal frame (10) comprises: at least one of magnesium alloy, aluminum alloy, zinc alloy, and titanium alloy.

15. The electronic device of any of claims 1-14, wherein the middle frame further comprises: the second plastic frame (16), the second plastic frame (16) is coated outside the periphery of the first plastic frame (11).