CN220914564U

CN220914564U - Antenna assembly and electronic equipment

Info

Publication number: CN220914564U
Application number: CN202322889126.6U
Authority: CN
Inventors: 何付平
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2023-10-26
Filing date: 2023-10-26
Publication date: 2024-05-07
Anticipated expiration: 2033-10-26

Abstract

The present application relates to the field of electronic device communications technologies, and in particular, to an antenna assembly and an electronic device. The antenna assembly comprises a main board, a radiator and a radiating middle frame, wherein the radiating middle frame is provided with a containing cavity. The accommodating cavity penetrates through the radiation middle frame along the thickness direction of the radiation middle frame. The main board and the radiator are sequentially arranged along the thickness direction of the radiating middle frame. The main board is positioned in the accommodating cavity. The radiator is located at one end of the accommodating cavity. According to the antenna assembly, the main board and the radiator are arranged at different positions of the radiating middle frame, so that the radiation path is increased, the radiation coverage range is enlarged, and the radiation performance of the antenna assembly is improved.

Description

Antenna assembly and electronic equipment

Technical Field

The present application relates to the field of electronic device communications technologies, and in particular, to an antenna assembly and an electronic device.

Background

An electronic device refers to a device capable of enabling communication with other products by receiving, processing, and transmitting signals.

Electronic devices generally include an antenna assembly that may radiate signals.

In the related art, the signal radiation effect of the antenna assembly is poor, and communication between the electronic equipment and other products is easily affected.

Disclosure of utility model

In view of the above, the present application provides an antenna assembly and an electronic device for improving radiation effect.

Specifically, the method comprises the following technical scheme:

A first aspect of the application provides an antenna assembly comprising a main board, a radiator and a radiating center, the radiating center having a receiving cavity. The accommodating cavity penetrates through the radiation middle frame along the thickness direction of the radiation middle frame. The main board and the radiator are sequentially arranged along the thickness direction of the radiating middle frame. The main board is positioned in the accommodating cavity. The radiator is located at one end of the accommodating cavity.

Optionally, the orthographic projection of the radiator on a projection plane is located in the orthographic projection of the main board on the projection plane, and the projection plane is a plane perpendicular to the thickness direction of the radiating middle frame.

Optionally, the radiator includes a first radiation branch and a second radiation branch, and the orthographic projection of the first radiation branch on the projection plane and the orthographic projection of the second radiation branch on the projection plane are both in a fan-ring shape.

Optionally, the center of the orthographic projection of the first radiation branch on the projection plane and the center of the orthographic projection of the second radiation branch on the projection plane are opposite, and the first radiation branch and the second radiation branch are spaced along the length direction of the radiation center.

Optionally, the radiator has a feeding portion extending toward the main board in a thickness direction of the radiating center, and the main board feeds power to the radiator through the feeding portion.

Optionally, the feeding portion forms a gap with the main board along a thickness direction of the radiating middle frame, and is coupled with the main board.

Optionally, the value range of the gap is 1-3 mm.

Optionally, the feeding part is connected with the main board and is electrically conducted.

A second aspect of the present application provides an electronic device comprising an antenna assembly according to the above-mentioned aspect.

Optionally, the electronic device further comprises a back cover, the back cover covers the end of the radiator on the accommodating cavity, and the radiator is connected with the back cover.

Optionally, the back cover is located between the radiator and the receiving cavity.

The technical scheme provided by the embodiment of the application has the beneficial effects that at least: the radiation middle frame can accommodate the main board and the radiator through the accommodating cavity, can also support the main board and the radiator and play a role in radiation. The main board and the radiator can participate in the radiation of the radiation middle frame so as to increase the radiation path and enlarge the radiation coverage range, thereby improving the radiation performance of the antenna assembly and improving the radiation effect.

In summary, the main board and the radiator are arranged at different positions of the radiating middle frame to increase the radiation path and enlarge the radiation coverage area, so that the radiation performance of the antenna assembly is improved and the radiation effect is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an antenna assembly according to an embodiment of the present application;

fig. 2 is a schematic top view of an antenna assembly according to an embodiment of the present application;

fig. 3 is a schematic side view of an antenna assembly according to an embodiment of the present application;

Fig. 4 is a schematic layout view of a radiator according to an embodiment of the present application;

FIG. 5 is a schematic view of another radiator arrangement according to an embodiment of the present application;

FIG. 6 is a schematic diagram in full section at A-A of FIG. 5;

FIG. 7 is a detailed schematic diagram at B of FIG. 6;

Fig. 8 is a schematic diagram of a part of a structure of an electronic device according to an embodiment of the present application.

Reference numerals in the drawings denote:

1. A main board;

2. a radiator; 211. a first radiation branch; 212. a second radiation branch; 221. a power feeding section;

3. Radiating the middle frame; 301. a receiving chamber;

4. and a back cover.

Specific embodiments of the present application have been shown by way of the above drawings and will be described in more detail below. The drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but rather to illustrate the inventive concepts to those skilled in the art by reference to the specific embodiments.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The terms of orientation, such as "upper", "lower", "side", etc., used in the embodiments of the present application are generally based on the relative relationships of the orientations shown in fig. 1, and are used merely to more clearly describe structures and relationships between structures, and are not intended to describe absolute orientations. The orientation may change when the product is placed in different orientations, e.g. "up", "down" may be interchanged.

Unless defined otherwise, all technical terms used in the embodiments of the present application have the same meaning as commonly understood by one of ordinary skill in the art.

In order to make the technical scheme and advantages of the present application more apparent, embodiments of the present application will be described in further detail with reference to the accompanying drawings.

A first aspect of the present application provides an antenna assembly, as shown in fig. 1, 2 and 3, comprising a main board 1, a radiator 2 and a radiating center 3, the radiating center 3 having a receiving cavity 301. Wherein the accommodation chamber 301 penetrates the radiation center 3 in the thickness direction of the radiation center 3. The main board 1 and the radiator 2 are disposed in this order in the thickness direction of the radiation center 3. The main board 1 is located in the accommodation chamber 301. The radiator 2 is located at one end of the receiving cavity 301.

It will be appreciated that the radiating middle frame 3 can accommodate the main board 1 and the radiator 2 through the accommodating cavity 301, and can also support the main board 1 and the radiator 2 and play a role of radiation. The main board 1 and the radiator 2 can participate in the radiation of the radiation middle frame 3 so as to increase the radiation path and enlarge the radiation coverage range, thereby improving the radiation performance of the antenna assembly and improving the radiation effect.

The thickness direction of the radiating center 3 is exemplarily shown in fig. 3.

In some embodiments of the present application, the communication frequency of the antenna assembly is mainly distributed between 0.6 and 3GHz. The radiation effect of the antenna assembly in the low frequency band (i.e., the 0.6 to 0.9GHz band) is poor due to the long wavelength of the band. The antenna assembly adopts the radiation middle frame 3 to participate in the radiation of the low frequency band, and simultaneously, the main board 1 is arranged in the accommodating cavity 301 and the radiator 2 is arranged at one end of the accommodating cavity 301, so that the main board and the radiator can participate in the radiation of the low frequency band, the path and the coverage range of the radiation are increased, the radiation performance of the antenna assembly is improved, and the radiation effect is improved.

In some embodiments of the present application, the motherboard 1 performs functions of information processing, signal transmission, power management, and the like, and also has a radiation function, so as to cooperate with the radiator 2 to expand the coverage of signal radiation. Alternatively, the shape of the main plate 1 may be the same as the cross-sectional shape of the accommodation chamber 301.

In some embodiments of the present application, as shown in fig. 2 and 3, the main board 1 is located in the accommodating cavity 301, and may be connected to the radiating middle frame 3 by a clamping, bonding or bolting manner, so as to maintain a relatively fixed position in the accommodating cavity 301.

In some embodiments of the application, the radiator 2 is mainly involved in the radiation in the low frequency range. Which is located at the end of the receiving cavity 301 to enlarge the coverage of the signal radiation. In the embodiment of the application, the radiator 2 is located at the end of the accommodating cavity 301, and may be located inside the accommodating cavity 301 or may be located outside the accommodating cavity 301. Illustratively, as shown in fig. 3, the radiator 2 is located at one end of the accommodating chamber 301 and is located outside the accommodating chamber 301. The radiator 2 can also be used as a circuit board, and has the functions of information processing, signal transmission, power management and the like, and also has the radiation function.

In some embodiments of the application, the main board 1 and the radiator 2 may be directly connected or indirectly connected, or may be spaced to accommodate other components.

In some embodiments of the present application, the radiator 2 may be directly connected to the radiating middle frame 3, or may be spaced apart from the radiating middle frame 3.

In some embodiments of the present application, the accommodating cavity 301 serves as a space for accommodating the main board 1 and the radiator 2, and its cross-sectional shape may be a regular shape such as a circle, a rectangle, or a combination of two or more regular shapes, or may be an irregular shape.

In summary, the antenna assembly of the present application increases the radiation path and enlarges the radiation coverage area by arranging the main board 1 and the radiator 2 at different positions of the radiation center 3, thereby improving the radiation performance and the radiation effect of the antenna assembly of the present application.

In some embodiments of the present application, as shown in fig. 2, 4 and 5, the orthographic projection of the radiator 2 on the projection plane is located in the orthographic projection of the main board 1 on the projection plane, and the projection plane is a plane perpendicular to the thickness direction of the radiating center 3.

It will be appreciated that the radiator 2 and the main board 1 thus disposed have less area requirements in the longitudinal section direction of the accommodating cavity 301, which is beneficial to the arrangement of other components in the accommodating cavity 301, so as to improve the utilization rate of the accommodating cavity 301.

Alternatively, the orthographic projection of the radiator 2 on the projection plane may have a regular shape such as a ring shape, a rectangle shape, or a combination of two or more regular shapes, or may have an irregular shape.

In some embodiments of the present application, as shown in fig. 2, the radiator 2 includes a first radiation branch 211 and a second radiation branch 212, where the orthographic projection of the first radiation branch 211 on the projection plane and the orthographic projection of the second radiation branch 212 on the projection plane are both in a fan shape.

It can be appreciated that the coverage area of the radiator 2 can be enlarged by the first radiating branch 211 and the second radiating branch 212, so as to improve the radiation performance and the radiation effect of the antenna assembly of the present application.

Alternatively, the first radiating stub 211 is shaped as a sector ring, which extends along the cross-sectional direction of the receiving cavity 301. The second radiation branch 212 has a fan-shape extending in a cross-sectional direction of the accommodation chamber 301.

Alternatively, the shape of the first radiating stub 211 is the same as the shape of the second radiating stub 212.

In some embodiments of the present application, as shown in fig. 2, a center of the orthographic projection of the first radiation branch 211 on the projection plane and a center of the orthographic projection of the second radiation branch 212 on the projection plane are disposed opposite to each other, and the first radiation branch 211 and the second radiation branch 212 are spaced apart along the length direction of the radiation center 3.

It can be appreciated that, since the first radiation branch 211 and the second radiation branch 212 are spaced apart along the length direction of the radiation center 3, they are independent from each other during operation, so that interference of the two during the radiation process is reduced, and the radiation effect of the radiator 2 can be improved.

Optionally, the central angle of the orthographic projection of first radiation branch 211 on the projection plane is 90 °, 135 ° or 180 °. The central angle of the orthographic projection of the second radiation branch 212 on the projection plane is 90 °, 135 ° or 180 °.

Alternatively, the first radiation branch 211 and the second radiation branch 212 are symmetrically disposed along the length direction of the radiation center 3.

In some embodiments of the present application, as shown in fig. 3, 5, 6 and 7, the radiator 2 has a feeding portion 221, the feeding portion 221 extends toward the main board 1 in the thickness direction of the radiating center 3, and the main board 1 feeds the radiator 2 through the feeding portion 221. This arrangement makes it possible to feed the radiator 2.

It is understood that the power feeding portion 221 functions to transmit electric power. The feeding portion 221 extends toward the main board 1 along the thickness direction of the radiating center 3, which is beneficial for the feeding portion 221 to directly or indirectly obtain electric energy from the main board 1, so as to achieve the purpose of feeding the radiator 2. By feeding the radiator 2, the main board 1 can supply power to the radiator 2, and can also analyze whether the radiator 2 has faults by the feeding condition. In addition, the feeding part 221 may participate in radiation to improve radiation performance and radiation effect of the antenna assembly of the present application.

The method of determining the failure of the radiator 2 by feeding is not an object of the present application, but is merely to provide a structure capable of feeding power to the power feeding unit 221 through the main board 1.

Alternatively, the main board 1 may feed the radiator 2 by directly feeding power to the feeding part 221 or generate power by inducing the feeding part 221 to feed the radiator 2.

Alternatively, the feeding portion 221 may also function as a circuit board, functioning as information processing, signal transmission, power management, and the like, in addition to transmitting current.

In some embodiments of the present application, as shown in fig. 5, 6 and 7, the feeding part 221 forms a gap L with the main board 1 in the thickness direction of the radiating middle frame 3 and is coupled with the main board 1.

It can be understood that the feeding is achieved by coupling, and the feeding can be achieved without additional wiring between the main board 1 and the feeding part 221, so that the assembly efficiency of the antenna assembly of the present application can be improved.

Alternatively, the feeding portion 221 is connected to a side wall of the receiving cavity 301 while maintaining a relatively fixed positional relationship with the main board 1 to facilitate coupling of the main board 1.

Alternatively, the feeding portion 221 may be connected to the side wall of the accommodating chamber 301 by means of a snap fit, an adhesive, a bolt connection, or the like.

In some embodiments of the present application, the gap L has a value in the range of 1 to 3mm.

It can be understood that in this range, there is a high feeding efficiency between the feeding portion 221 and the main board 1, which is advantageous in that the main board 1 supplies power to the radiator 2 through the feeding portion 221.

Illustratively, the clearance L may take on a value of 1mm, 1.5mm, 2mm, 2.5mm, or 3mm.

In some embodiments of the present application, the feeding portion 221 is connected to the motherboard 1 and is electrically conductive.

By means of a direct connection, the main board 1 can feed the feeding part 221 and thus supply the radiator 2 with electric energy.

Alternatively, the feeding portion 221 and the main board 1 may be connected and electrically connected by welding, integral molding, or the like.

A second aspect of the application provides an electronic device, as shown in fig. 8, comprising an antenna assembly as in the above-described embodiments.

It can be appreciated that, due to the antenna assembly of the above embodiment, the electronic device of the embodiment of the present application has the same technical effects as those of the above embodiment, and will not be described herein.

Optionally, the electronic device may be a smart phone, a smart bracelet, a tablet computer, a notebook computer, a smart helmet, or smart glasses.

In some embodiments of the present application, as shown in fig. 8, the electronic device further includes a back cover 4, where the back cover 4 covers the end of the radiator 2 on the accommodating cavity 301, and the radiator 2 is connected to the back cover 4.

In use, the back cover 4 is generally in direct contact with the human body. And the other end of the accommodating cavity 301 can be provided with a display screen and other components, which is beneficial for the electronic equipment to display images to users.

Alternatively, the radiator 2 may be attached to the back cover 4 by means of adhesive. The radiator 2 may also be mounted on the back cover 4 by means of a slot in the back cover 4.

In some embodiments of the application, as shown in fig. 8, the back cover 4 is located between the radiator 2 and the accommodation chamber 301.

It will be appreciated that this arrangement not only provides a mounting location for the radiator 2 by the back cover 4, but also avoids the radiator 2 occupying the space of the accommodating chamber 301, which is advantageous for arranging other components in the accommodating chamber 301.

In the present disclosure, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless explicitly defined otherwise.

Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. The specification and examples are to be regarded in an illustrative manner only.

It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. An antenna assembly, characterized in that the antenna assembly comprises a main board (1), a radiator (2) and a radiating middle frame (3), the radiating middle frame (3) having a receiving cavity (301), wherein,

The accommodating cavity (301) penetrates through the radiation middle frame (3) along the thickness direction of the radiation middle frame (3);

the main board (1) and the radiator (2) are sequentially arranged along the thickness direction of the radiating middle frame (3);

The main board (1) is positioned in the accommodating cavity (301);

The radiator (2) is located at one end of the accommodation chamber (301).

2. The antenna assembly according to claim 1, characterized in that the orthographic projection of the radiator (2) on a projection plane is located within the orthographic projection of the main board (1) on the projection plane, which is a plane perpendicular to the thickness direction of the radiating center (3).

3. The antenna assembly according to claim 2, characterized in that the radiator (2) comprises a first radiation branch (211) and a second radiation branch (212), the front projection of the first radiation branch (211) on the projection plane and the front projection of the second radiation branch (212) on the projection plane being in the shape of a sector of a circle.

4. An antenna assembly according to claim 3, characterized in that the centre of the orthographic projection of the first radiation branch (211) on the projection plane and the centre of the orthographic projection of the second radiation branch (212) on the projection plane are arranged opposite each other, the first radiation branch (211) and the second radiation branch (212) being spaced apart along the length direction of the radiating centre frame (3).

5. The antenna assembly according to claim 1, characterized in that the radiator (2) has a feeding portion (221), the feeding portion (221) extending in the thickness direction of the radiating center (3) toward the main board (1), the main board (1) feeding the radiator (2) through the feeding portion (221).

6. The antenna assembly according to claim 5, characterized in that the feeding portion (221) forms a gap with the main board (1) in a thickness direction of the radiating middle frame (3), and the feeding portion (221) is coupled with the main board (1).

7. The antenna assembly of claim 6, wherein the gap has a value in the range of 1-3 mm.

8. The antenna assembly according to claim 5, characterized in that the feed (221) is connected to and electrically connected to the main board (1).

9. An electronic device comprising an antenna assembly as claimed in any one of claims 1 to 8.

10. The electronic device according to claim 9, further comprising a back cover (4), wherein the back cover (4) covers the receiving cavity (301) at the end of the radiator (2), and wherein the radiator (2) is connected to the back cover (4).

11. The electronic device according to claim 10, characterized in that the back cover (4) is located between the radiator (2) and the receiving cavity (301).