WO2019029474A1

WO2019029474A1 - Antenna device and electronic device

Info

Publication number: WO2019029474A1
Application number: PCT/CN2018/098934
Authority: WO
Inventors: 曾元清
Original assignee: Oppo广东移动通信有限公司
Priority date: 2017-08-10
Filing date: 2018-08-06
Publication date: 2019-02-14

Abstract

Disclosed in the present application are an antenna device and an electronic device. The antenna device comprises a housing and a circuit board; the housing comprises a metal frame body; the circuit board is provided with an elastic sheet and a match circuit, and the circuit board is fixedly connected to the metal frame body by means of the elastic sheet; the metal frame body is electrically connected to the match circuit by means of the elastic sheet so as to be used as a signal carrier.

Description

Antenna device and electronic device

This application claims the priority of the Chinese Patent Application, which is filed on August 10, 2017, with the application numbers of 201710680988.4 and 201720997689.5, all of which are "antenna devices and electronic devices", the entire contents of which are incorporated herein by reference. in.

Technical field

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

Background technique

With the development of communication technology, people are increasingly using mobile electronic devices such as mobile phones and tablet computers in their daily lives. In particular, the communication functions of electronic devices are used most frequently. The performance of the communication function of the electronic device is determined by its built-in antenna. The current electronic device has a narrow frequency band. If the frequency band needs to be widened, the number of antennas needs to be increased in the electronic device, but this will increase the design cost of the electronic device. .

technical problem

The embodiment of the present application provides an antenna device and an electronic device, which can improve the compactness of the electronic device structure and save the design cost of the electronic device.

Technical solution

The embodiment of the present application provides an antenna device, including: a housing, the housing includes a metal frame; a circuit board, the circuit board is provided with a spring piece and a matching circuit, and the circuit board passes the elastic piece and the metal The frame is fixedly connected, and the metal frame is electrically connected to the matching circuit through the elastic piece as a signal carrier.

An embodiment of the present application further provides an electronic device including a housing and a display screen fixedly coupled to the housing, the electronic device further including the antenna device as described above.

The embodiment of the present application further provides an electronic device, including: a housing, the housing includes a metal frame; a circuit board, the circuit board is provided with a spring piece and a matching circuit, and the circuit board passes the elastic piece and the The metal frame is fixedly connected, and the metal frame is electrically connected to the matching circuit through the elastic piece as a signal carrier.

Beneficial effect

DRAWINGS

FIG. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

FIG. 2 is a schematic diagram of a housing of an electronic device according to an embodiment of the present application.

FIG. 3 is a first schematic diagram of an antenna device provided on an electronic device according to an embodiment of the present application.

FIG. 4 is a second schematic diagram of an antenna device provided on an electronic device according to an embodiment of the present application.

FIG. 5 is a third schematic diagram of an antenna device provided on an electronic device according to an embodiment of the present application.

FIG. 6 is a fourth schematic diagram of an antenna device provided on an electronic device according to an embodiment of the present application.

FIG. 7 is a fifth schematic diagram of an antenna device provided on an electronic device according to an embodiment of the present application.

Embodiments of the invention

The technical solutions in the embodiments of the present application will be clearly and completely described in the following with reference to the accompanying drawings in the embodiments. It is apparent that the described embodiments are only a part of the embodiments of the present application, and not all of them. All other embodiments obtained by a person skilled in the art based on the embodiments of the present application without creative efforts are within the scope of the present application.

In the description of the present application, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientations of "post", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of describing the present application and the simplified description, and does not indicate or imply that the device or component referred to has a specific orientation, and is constructed and operated in a specific orientation. Therefore, it should not be construed as limiting the application. Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" or "second" may include one or more of the described features either explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is two or more unless specifically and specifically defined otherwise.

In the description of the present application, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise specifically defined and defined. Connected, or integrally connected; may be mechanically connected, may be electrically connected or may communicate with each other; may be directly connected, or may be indirectly connected through an intermediate medium, may be internal communication of two elements or interaction of two elements relationship. For those skilled in the art, the specific meanings of the above terms in the present application can be understood on a case-by-case basis.

In the present application, the first feature "on" or "under" the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. It is not in direct contact but through additional features between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and below the second feature, or merely the first feature level being less than the second feature.

The following disclosure provides many different embodiments or examples for implementing the different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of the specific examples are described below. Of course, they are merely examples and are not intended to limit the application. In addition, the present application may repeat reference numerals and/or reference numerals in different examples, which are for the purpose of simplicity and clarity, and do not indicate the relationship between the various embodiments and/or arrangements discussed. Moreover, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the use of other processes and/or the use of other materials.

The embodiment of the present application provides an antenna device and an electronic device. The details will be described separately below. In this embodiment, it will be described from the perspective of an antenna device, which may be specifically disposed in an electronic device, such as a mobile phone, a tablet computer, a personal digital assistant (PDA), or the like.

The embodiment of the present application provides an electronic device including a housing and a display screen fixedly coupled to the housing, wherein the electronic device further includes an antenna device, and the antenna device includes:

Metal frame

a circuit board, the circuit board is provided with a spring piece and a matching circuit, and the circuit board is fixedly connected to the metal frame through the elastic piece, and the metal frame body is electrically connected to the matching circuit through the elastic piece as Signal carrier.

In some embodiments, the inner side of the metal frame is provided with a protrusion, and the elastic piece is in abutting connection with the protrusion.

In some embodiments, the elastic piece includes a connected body portion and an elastic portion, the body portion is fixed to the circuit board, the elastic portion is from the body portion toward the protruding portion and is The projections abut the connection.

In some embodiments, the elastic portion is provided with a contact, and the contact of the elastic portion is in abutting connection with the protruding portion of the metal frame.

In some embodiments, an electronic device is further provided, comprising: a housing, the housing includes a metal frame; a circuit board, the circuit board is provided with a spring piece and a matching circuit, wherein the circuit board passes through The elastic piece is fixedly connected to the metal frame, and the metal frame is electrically connected to the matching circuit through the elastic piece as a signal carrier.

Referring to FIG. 1 and FIG. 2, the electronic device 100 includes a display screen 10, a circuit board 20, a metal frame 30, a back cover 40, and an antenna device 50. Although not shown in FIGS. 1 and 2, the electronic device 100 further includes a battery.

Wherein, the display screen 10 can include a touch layer and a display layer. Wherein, the touch layer is overlaid on the display layer. The touch layer can be used for a user to perform a touch operation. The touch layer can be a transparent glass cover. In some embodiments, the touch layer can be a glass cover made of a material such as sapphire. The display layer may be a liquid crystal display panel for displaying information input by a user or information provided to a user and various graphical user interfaces of the electronic device, which may be composed of graphics, text, icons, videos, and any combination thereof. Come to form. The display screen 10 may include a display area 10A and a non-display area 10B. The display area 10A can be used to display a screen of the electronic device 100 or for a user to perform touch manipulation or the like. The top area of the non-display area 10B is provided with an opening for sound and light transmission, and a functional component such as a fingerprint module 501 and a touch button can be disposed on the bottom of the non-display area 10B. It should be noted that the non-display area 10B of the embodiment of the present application may also be disposed only on the top of the electronic device 100 or only at the bottom of the electronic device 100. It should be noted that the electronic device 100 of the embodiment of the present application may also be set in a full screen without retaining the non-display area.

As shown in FIG. 2 , the display panel 10 , the metal frame 30 and the rear cover 40 can be combined to form a housing 110 having a sealed space formed by the display screen 10 , the metal frame 30 and the rear cover 40 . Other components of the electronic device 100, such as the circuit board 20 and the antenna device 50, are mounted in a sealed space within the housing 110. It should be noted that the structure of the housing 110 of the embodiment of the present application is not limited thereto, and the housing structure of the embodiment of the present application may further include only the display screen and the metal frame, or the back cover and the metal frame are integrally formed into one. The overall housing structure.

The electronic device 100 may include a housing 110 and a display screen 10 fixedly coupled to the housing 110. The electronic device 100 further includes an antenna device 50.

The circuit board 20 is mounted inside the housing 110. Circuit board 20 can be the motherboard of electronic device 100. Functional components such as a fingerprint module, a radio frequency circuit, a camera, a proximity sensor, and a processor can be integrated on the circuit board 20. At the same time, the display screen 10 can be electrically connected to the circuit board 20.

The metal frame 30 serves as a frame of the electronic device 100 and can be used to support the entire electronic device 100. The metal frame 30 can be made of a metal material. The metal frame 30 can also be made of a hardware material. The metal frame 30 can also be replaced by a non-metallic frame having an outer surface coated with a conductive coating.

The embodiment of the present application further provides an antenna device, including: a housing, the housing includes a metal frame; a circuit board, the circuit board is provided with a spring piece and a matching circuit, wherein the circuit board passes the The elastic piece is fixedly connected to the metal frame, and the metal frame is electrically connected to the matching circuit through the elastic piece as a signal carrier.

In some embodiments, the elastic piece includes a connected body portion and an elastic portion, the body portion is fixed to the circuit board, the elastic portion is from the body portion toward the protruding portion and is Protrusion to resist connection

In some embodiments, the contact is disposed at an end of the resilient portion away from the body portion and toward the projection.

In some embodiments, the metal frame is electrically connected to the matching circuit as a signal carrier through the protrusion, the contact of the elastic portion and the body portion.

In some embodiments, the projection is provided with a raised bump, the contact of the resilient portion being abuttingly coupled to the bump.

In some embodiments, the projection is provided with a recessed recess, the contact of the resilient portion being abuttingly coupled to the recess.

In some embodiments, the body portion of the shrapnel is electrically connected to the matching circuit through a feed line.

In some embodiments, the elastic portion is provided with a bent portion that is bent and extended toward the body portion, and the bent portion of the elastic portion is in abutting connection with the protruding portion of the metal frame.

In some embodiments, the protruding portion is provided with a snap structure, and the bent portion of the elastic portion is in abutting connection with the buckle structure.

In some embodiments, the snap structure is hook shaped.

In some embodiments, the buckle structure is annular

In some embodiments, the circuit board is provided with a feeding point, and the feeding point is electrically connected to the metal frame through the matching circuit and the elastic piece.

In some embodiments, the feed point and the matching circuit are electrically connected by a feed line.

Please refer to FIG. 3. FIG. 3 is a schematic diagram of an antenna device provided on an electronic device according to an embodiment of the present application. The antenna device 50 includes a housing 110 and a circuit board 20.

The housing 110 includes a metal frame 30. The circuit board 20 is provided with a resilient piece 21 and a matching circuit 22. The elastic piece 21 is fixed at an edge of the circuit board 20. The matching circuit 22 is disposed on the circuit board 20. The circuit board 20 is fixedly connected to the metal frame 30 through the elastic piece 21, and the metal frame 30 is electrically connected to the matching circuit 22 through the elastic piece 21 as a signal carrier.

The elastic piece 21 and the matching circuit 22 are electrically connected through the feed line 24 .

The matching circuit 22 further includes a capacitor and a resistor, and the frequency band of the radio frequency signal is adjusted by the capacitance and the resistance of the matching circuit 22 .

The metal frame 30 is further provided with a protruding portion 31 on the inner side thereof, and the elastic piece 21 is in abutting connection with the protruding portion 31. The metal frame 30 is electrically connected to the elastic piece 21 to the matching circuit 22 through the protruding portion 31 as a signal carrier.

The elastic piece 212 includes a body portion 211 and an elastic portion 212. The body portion 211 is fixed to the circuit board 20, and the elastic portion 212 faces the protruding portion 31 from the body portion 211 and the protruding portion. 31 to resist the connection. The metal frame 30 is electrically connected to the matching circuit 22 through the protruding portion 31 , the elastic portion 212 and the body portion 211 as a signal carrier.

The body portion 211 of the elastic piece 21 is electrically connected to the matching circuit 22 through the feed line 24 .

The elastic portion 212 is provided with a contact 2121 , and the contact 2121 of the elastic portion 212 is in abutting connection with the protruding portion 31 of the metal frame 30 . The contact 2121 is disposed at an end of the elastic portion 212 away from the body portion 211 and facing the protruding portion 31. The metal frame 30 is electrically connected to the matching circuit 22 through the protruding portion 31 and the contact portion 2121 of the elastic portion 212 and the body portion 211 as a signal carrier.

The circuit board 20 is further provided with a feeding point 23, and the feeding point 23 is electrically connected to the metal frame 30 through the matching circuit 22 and the elastic piece 21 in sequence. The feeding point 23 and the matching circuit 22 are electrically connected through the feeding line 24 .

Please refer to FIG. 4. FIG. 4 is a second schematic diagram of an antenna device mounted on an electronic device according to an embodiment of the present application. The antenna device 50 includes a housing 110 and a circuit board 20.

The protruding portion 31 is further provided with a convex bump 311, and the contact 2121 of the elastic portion 212 is in abutting connection with the bump 311. The metal frame 30 is sequentially electrically connected to the matching circuit 22 as a signal carrier through the bump 311 of the protruding portion 31, the contact 2121 of the elastic portion 212, and the body portion 211.

Please refer to FIG. 5. FIG. 5 is a third schematic diagram of an antenna device according to an embodiment of the present invention mounted on an electronic device. The antenna device 50 includes a housing 110 and a circuit board 20.

The protruding portion 31 is further provided with a recessed groove 312, and the contact 2121 of the elastic portion 212 is in abutting connection with the groove 312. The elastic portion 212 extends into the recess 312 such that the contact 2121 of the elastic portion 212 abuts against the inner wall of the recess 312. The metal frame 30 is electrically connected to the matching circuit 22 as a signal carrier through the recess 312 of the protruding portion 31, the contact 2121 of the elastic portion 212, and the body portion 211.

Referring to FIG. 6 and FIG. 7 , FIG. 6 is a fourth schematic diagram of an antenna device provided on an electronic device according to an embodiment of the present disclosure. FIG. 7 is a fifth schematic diagram of the antenna device provided on the electronic device according to an embodiment of the present disclosure. The antenna device 50 includes a housing 110 and a circuit board 20.

The elastic portion 212 is further provided with a bending portion 2122 that is bent and extended toward the main body portion 211 . The bending portion 2122 of the elastic portion 212 is in abutting connection with the protruding portion 31 of the metal frame 30 .

The protruding portion 31 is further provided with a buckle structure 313 , and the bending portion 2122 of the elastic portion 212 is in abutting connection with the buckle structure 313 .

As shown in FIG. 6 , the buckle structure 313 can be a hook shape, and the bent portion 2122 of the elastic portion 212 is buckled with the hook-shaped buckle structure 313 , and the end of the bent portion 2122 of the elastic portion 212 . The inner side of the hook-shaped snap structure 313 is abutted. The metal frame 30 is electrically connected to the matching circuit 22 through the buckle structure 313 of the protruding portion 31 and the bent portion 2122 of the elastic portion 212 to serve as a signal carrier.

As shown in FIG. 7 , the buckle structure 313 can be annular, and the bending portion 2122 of the elastic portion 212 is engaged with the annular buckle structure 313 , and the inner side of the bending portion 2122 of the elastic portion 212 is The inner side of the annular snap structure 313 abuts the connection. The metal frame 30 is electrically connected to the matching circuit 22 through the buckle structure 313 of the protruding portion 31 and the bent portion 2122 of the elastic portion 212 to serve as a signal carrier.

The antenna device 50 provided by the embodiment of the present application includes a housing 110 and a circuit board 20, and the housing 110 includes a metal frame 30. The circuit board 20 is provided with a spring piece 21 and a matching circuit 22, and the circuit board 20 passes through the elastic piece 21. The metal frame body 22 is fixedly connected to the metal frame body 22, and the metal frame body 30 is electrically connected to the matching circuit 22 as a signal carrier. In the embodiment of the present application, the metal frame 30 of the housing 110 is connected by the elastic piece 21 on the circuit board 20, so that the metal frame 30 can transmit and receive signals as an antenna signal carrier, and the original structure is used to realize the antenna function, thereby improving the compactness and saving. Design cost.

Those skilled in the art will appreciate that the structure of the electronic device 100 illustrated in FIGS. 1 and 2 does not constitute a limitation of the electronic device 100. Electronic device 100 may include more or fewer components than illustrated, or some components in combination, or different component arrangements. The electronic device 100 may further include a processor, a memory, an audio circuit, a Bluetooth module, a wireless fidelity module, and the like, and details are not described herein.

The antenna device and the electronic device provided by the embodiments of the present application are described in detail. The principles and implementations of the present application are described in the specific examples. The description of the above embodiments is only for helping to understand the present application. In the meantime, those skilled in the art will be able to change the specific embodiments and the scope of the application according to the idea of the present application. In the above, the content of the specification should not be construed as limiting the present application.

Claims

An antenna device comprising: a housing, the housing includes a metal frame; a circuit board, the circuit board is provided with a spring piece and a matching circuit, wherein the circuit board passes the spring piece and the metal The frame is fixedly connected, and the metal frame is electrically connected to the matching circuit through the elastic piece as a signal carrier.
The antenna device according to claim 1, wherein a convex portion is provided on an inner side of the metal frame, and the elastic piece is in abutting connection with the protruding portion.
The antenna device according to claim 2, wherein the elastic piece includes a connected body portion and an elastic portion, the body portion is fixed to the circuit board, and the elastic portion is from the body portion toward the convex portion The outlet is connected to the protruding portion.
The antenna device according to claim 3, wherein the elastic portion is provided with a contact, and a contact of the elastic portion is in abutting connection with a protruding portion of the metal casing.
The antenna device according to claim 4, wherein the contact is provided at an end of the elastic portion away from the body portion and toward the protruding portion.
The antenna device according to claim 5, wherein the metal frame is electrically connected to the matching circuit as a signal carrier through the protrusion, the contact of the elastic portion, and the body portion.
The antenna device according to claim 4, wherein said projection is provided with a convex bump, and a contact of said elastic portion is abutted against said bump.
The antenna device according to claim 4, wherein said projection is provided with a recessed groove, and a contact of said elastic portion is in abutment connection with said recess.
The antenna device according to claim 3, wherein the body portion of the elastic piece is electrically connected to the matching circuit through a feed line.
The antenna device according to claim 3, wherein the elastic portion is provided with a bent portion that is bent and extended toward the body portion, and the bent portion of the elastic portion is in contact with the convex portion of the metal frame Hold the connection.
The antenna device according to claim 10, wherein the protruding portion is provided with a snap structure, and the bent portion of the elastic portion is in abutting connection with the snap structure.
The antenna device according to claim 11, wherein the snap structure is hook-shaped.
The antenna device according to claim 11, wherein the snap structure is annular.
The antenna device according to claim 1, wherein the circuit board is provided with a feeding point, and the feeding point is electrically connected to the metal frame through the matching circuit and the elastic piece.
The antenna device according to claim 1, wherein said feed point and said matching circuit are electrically connected by a feed line.
An electronic device includes a housing and a display screen fixedly coupled to the housing, wherein the electronic device further includes an antenna device, and the antenna device includes:

Metal frame

a circuit board, the circuit board is provided with a spring piece and a matching circuit, and the circuit board is fixedly connected to the metal frame through the elastic piece, and the metal frame body is electrically connected to the matching circuit through the elastic piece as Signal carrier.
The electronic device according to claim 16, wherein the inner side of the metal frame is provided with a protruding portion, and the elastic piece is abuttingly connected to the protruding portion.
The electronic device according to claim 16, wherein the elastic piece includes a connected body portion and an elastic portion, the body portion is fixed to the circuit board, and the elastic portion is from the body portion toward the convex portion The outlet is connected to the protruding portion.
The electronic device according to claim 16, wherein the elastic portion is provided with a contact, and a contact of the elastic portion is in abutting connection with a protruding portion of the metal frame.
An electronic device comprising: a housing, the housing includes a metal frame; a circuit board, the circuit board is provided with a spring piece and a matching circuit, wherein the circuit board passes the elastic piece and the metal frame The metal frame is electrically connected to the matching circuit through the elastic piece as a signal carrier.