CN113067145B

CN113067145B - Electronic device

Info

Publication number: CN113067145B
Application number: CN202110348575.2A
Authority: CN
Inventors: 王义金; 邾志民; 简宪静; 陈俊兵
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-03-31
Filing date: 2021-03-31
Publication date: 2022-11-29
Anticipated expiration: 2041-03-31
Also published as: CN113067145A

Abstract

The application discloses electronic equipment belongs to communication technology field, and this electronic equipment includes: mainboard, frame and around locating the metal frame of frame periphery, electronic equipment still includes: a first antenna and a second antenna; the metal frame is provided with a broken seam so as to divide the metal frame into a first metal arm and a second metal arm, and the first metal arm is connected with the mainboard through a first feed structure to form the first antenna; the second antenna is fixed on the frame, the first antenna is positioned in the main radiation direction of the second antenna, and a gap is formed between the second antenna and the first antenna; and a first part, which is just opposite to the second antenna, of the metal frame is arranged in a hollow manner. The antenna can be arranged in the same area of the electronic equipment, so that the occupied space of the antenna is reduced.

Description

Electronic device

Technical Field

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

Background

In the related art, different antennas need to be disposed in different areas, for example: the millimeter wave antenna and the FR1 antenna are arranged in different areas.

With the development of communication technology, the number of antennas on electronic equipment is more and more, and the frequency band is wider and wider; the product proportion of electronic equipment such as mobile phones is higher and higher. Therefore, the installation space reserved for the antenna on the electronic device is less and less, and how to accommodate such a large number of antennas in a given electronic device and satisfy the communication requirements, even the communication requirements of the electronic device in different forms, such as a free state, a handheld state, and the like, is a difficult problem to be solved urgently.

Disclosure of Invention

The embodiment of the application aims to provide an electronic device, which can arrange two different antennas in the same antenna installation area, so that the occupied space of the antennas in the electronic device is reduced.

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

an embodiment of the present application provides an electronic device, including: mainboard, frame and around locating the metal frame of frame periphery, electronic equipment still includes: a first antenna and a second antenna;

the metal frame is provided with a broken seam so as to divide the metal frame into a first metal arm and a second metal arm, and the first metal arm is connected with the mainboard through a first feed structure to form the first antenna;

the second antenna is fixed on the frame, the first antenna is positioned in the main radiation direction of the second antenna, and a gap is formed between the second antenna and the first antenna;

and a first part, which is just opposite to the second antenna, of the metal frame is arranged in a hollow manner.

Optionally, the frame is a metal frame, a gap is formed between a second portion of the metal frame and the metal frame, the gap is communicated with the broken seam, and the second portion includes the first metal arm and the second metal arm.

Optionally, the first antenna is an FR1 frequency band antenna, and the second antenna is a millimeter wave antenna.

Optionally, the second antenna is a millimeter wave antenna in the millimeter wave antenna module, and one surface of the millimeter wave antenna module facing the slot is aligned with the edge of the slot.

Optionally, at least one of the broken seam, the gap, and the hollow portion formed on the first portion is filled with an insulating material.

Optionally, the metal frame is provided with a second groove, the second antenna is erected on the opening side of the second groove to form a first gap between the second antenna and the groove bottom of the second groove, and the first feed structure penetrates through the first gap to be connected with the motherboard.

Optionally, the first feeding structure is a first feeding FPC, the first antenna further includes an impedance matching network and an impedance switch, and the impedance matching network and the impedance switch of the first antenna are disposed on the first feeding FPC and located in the first gap.

Optionally, the electronic device further includes:

and the second metal arm is connected with the mainboard through a second feed structure to form the third antenna, wherein the first antenna and the third antenna are FR1 antennas.

Optionally, the frame is further provided with a third groove, the second antenna is erected on the open side of the third groove to form a second gap between the second antenna and the bottom of the third groove, and the second feeding structure passes through the second gap to be connected to the motherboard.

Optionally, the second feed structure is a second feed FPC, the third antenna further includes an impedance matching network and an impedance switch, and the impedance matching network and the impedance switch of the third antenna are disposed on the second feed FPC and located in the second gap.

In the embodiment of the application, a metal frame is divided into a first metal arm and a second metal arm by forming a broken seam on the metal frame, and the first metal arm is connected with the main board through a first feed structure to form the first antenna; and will the second antenna is fixed in on the frame, first antenna is located the main radiation direction of second antenna, just the second antenna with have the clearance between the first antenna to through set up fretwork portion on the metal frame, so that the receiving and transmitting signal of second antenna can not sheltered from by the metal frame, like this, realized the feed of first antenna promptly, ensure again can be close to the radiation performance of the second antenna of first antenna setting, make in same region on electronic equipment, can set up first antenna and second antenna, in order to avoid setting up first antenna and second antenna respectively in electronic equipment's different regions and the big problem of antenna occupation space that causes.

Drawings

Fig. 1 is a side view of an electronic device provided in an embodiment of the present application;

FIG. 2 is an enlarged view of area A of FIG. 1;

FIG. 3 is a front view of area A of FIG. 1;

fig. 4 is a top view of an electronic device provided in an embodiment of the present application;

FIG. 5 is an enlarged view of area B of FIG. 4;

FIG. 6 is a side view of another electronic device provided by embodiments of the present application;

FIG. 7 is an enlarged view of area C of FIG. 6;

FIG. 8 is a front view of area C of FIG. 6;

fig. 9 is a top view of another electronic device provided in an embodiment of the application;

fig. 10 is an enlarged view of area D in fig. 9.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/", and generally means that the former and latter related objects are in an "or" relationship.

The electronic device provided in the embodiments of the present application is described in detail with reference to the accompanying drawings through specific embodiments and application scenarios thereof.

Referring to fig. 1 to 5, an embodiment of the present disclosure provides an electronic device, including: the antenna comprises a main board 1, a frame 2, a metal frame 3 wound on the periphery of the frame 2, a first antenna 4 and a second antenna 5;

the metal frame 3 is provided with a broken seam 30 to divide the metal frame 3 into a first metal arm 31 and a second metal arm 32, and the first metal arm 31 is communicated with the main board 1 through a first feed structure 33 to form a first antenna 4;

the second antenna 5 is fixed on the frame 2, the first antenna 4 is located in the main radiation direction (direction X shown in fig. 1) of the second antenna 5, and a gap 50 is formed between the second antenna 5 and the first antenna 4;

a first portion of the metal frame 3 opposite to the second antenna 5 is hollowed out to form a hollowed-out portion 34 shown in fig. 1.

It should be noted that, in order to facilitate observation of the internal structure of the electronic device, structures such as a rear cover and a display screen of the electronic device are hidden in the drawings provided in the embodiment of the present application, in practical applications, the main board 1 of the electronic device provided in the embodiment of the present application is sandwiched between the frame 2 and the rear cover, and one side of the frame 2, which is away from the main board 1, is used to fix the display screen.

In a specific implementation, the first antenna 4 and the second antenna 5 may be different types of antennas, for example: the first Antenna 4 is an FR1 Antenna, and the second Antenna 5 is a millimeter wave Antenna (i.e., an FR2 Antenna), wherein as shown in fig. 2, the FR2 Antenna is a millimeter wave array Antenna module (AiP), which may be an integrated module including a millimeter wave array Antenna (the millimeter wave array Antenna shown in fig. 2 includes 4 millimeter wave Antenna units 51 arranged at intervals), a Radio Frequency Integrated Circuit (RFIC), and a Power Management integrated module (PMIC). At this time, the main radiation direction of the above-described millimeter wave array antenna may be a direction perpendicular to the exposed surfaces of the 4 millimeter wave antenna elements as shown in fig. 2.

For convenience of understanding and explanation, in the embodiment of the present application, only the first antenna 4 is an FR1 antenna, and the second antenna 5 is an FR2 antenna, which is taken as an example for illustration, and no specific limitation is made herein, for example: the first antenna 4 is a loop antenna or the like.

Of course, in a specific implementation, the first antenna 4 and the second antenna 5 may also be other types of antennas, and are not limited in particular.

In a specific implementation, as shown in fig. 3, the first portion of the metal frame 3 directly facing the second antenna 5 may be a portion located in a main radiation direction of the second antenna 5 and located by an orthogonal projection of the second antenna 5 on the metal frame 3; in addition, the first part of the metal frame 3 facing the second antenna 5 forms a hollow part 34, which can be understood as follows: the first part of the metal frame 3 facing the second antenna 5 is cut off to form a hollow part 34 at the cut-off part, or the metal frame 3 includes the first part of the orthographic projection of the second antenna 5 on the metal frame 3, and the first part is recessed toward the side contacting the frame 2 to form the hollow part 34 on the metal frame 3. Thus, the second antenna 5 can radiate through the hollow portion 34. In implementation, the cut-away portion or the recessed area does not exceed an area which can be shielded by a rear cover of the electronic device, so that the appearance of the whole electronic device is not damaged.

Further, the hollow portion 34 functions as: the main radiation surface of the second antenna 5 is at least partially exposed out of the metal frame 3, so as to reduce the shielding effect of the metal frame 3 on the radiation signal of the second antenna 5, wherein the main radiation surface of the second antenna 5 represents a surface of the second antenna 5 facing the main radiation direction thereof.

In this way, the second antenna 5 can radiate radio frequency signals to the outside of the electronic device.

In an alternative embodiment, the first feeding structure 33 is a Flexible Printed Circuit (FPC) and the specific position where the FPC is connected to the first metal arm 31 can be adjusted according to actual requirements to excite the FR1 antenna to obtain more resonant modes.

In practical applications, as shown in fig. 2, one end of the first feeding FPC may be connected to the first metal arm 31 by screws, and the other end of the first feeding FPC is connected to the main board 1.

Of course, besides the above-mentioned feeding FPC structure, the first feeding structure 33 may also be a feeding line, a feeding tongue, etc., and the material of the feeding FPC may be a polyimide film (PI), a modified polyimide film (MPI), a liquid crystal material (LCP), etc., and the feeding FPC may also be connected to the metal frame 3 by welding, and the specific form and material of the first feeding structure 33 are not limited herein.

In addition, the feeding structure may pass through the frame 2 below the second antenna 5 to be connected with the main board 1, or bypass the second antenna 5 to be connected with the main board 1.

In addition, as shown in fig. 2 and 3, the above-mentioned main radiation direction of the first antenna 4 located on the second antenna 5 can be understood as follows: the first metal arm 31 is located in the main radiation direction of the second antenna 5 (that is, the bottom of the hollow 34 may be formed by the first metal arm 31 and the second metal arm 32), and the second antenna 5 and the first antenna 4 are arranged adjacently (for example, the distance between each other may be less than 1 cm, or even only 1 mm or 2 mm). That is, the second antenna 5 is close to the region of the metal frame 3 where the first metal arm 31 and the second metal arm 32 are disposed, and it is only necessary to ensure that the gap 50 exists between the second antenna 5 and the first metal arm 31 and the second metal arm 32.

Further, as shown in fig. 1, the first metal arm 31 may be longer than the second metal arm 32, and at this time, the first metal arm 31 (i.e., the long arm) is connected to the motherboard 1 through the first feeding structure 33, so that the long arm of the first antenna 4 may operate in the first frequency band or the second frequency band, and the second metal arm 32 (i.e., the short arm) may operate in the third frequency band, which may be different from each other.

In the present embodiment, the hollow portion 34 is formed on the metal frame 3 to reduce the shielding of the metal frame 3 on the second antenna 5, thereby reducing the radiation interference on the second antenna 5.

In addition, in a specific implementation, the frame 2 may include a partial metal structure, and a region of the metal bezel 3 except for the first metal arm 31 and the second metal arm 32 may be connected to the metal structure, such that an end of the first metal arm 31 away from the seam 30 and an end of the second metal arm 32 away from the seam 30 are respectively grounded through the metal structure. For example: the region of the frame 2 close to the first metal arm 31 and the second metal arm 32 is provided with an insulating structure, and the other regions are provided with metal structures, or the frame 2 is entirely provided with a metal structure, and a slit or the like is provided at a position of the frame 2 close to the first metal arm 31 and the second metal arm 32.

In a specific implementation, the number of the slits 30 formed in the metal bezel 3 may be 2 or more, so as to divide the metal bezel 3 into a plurality of antennas, and the number of the slits 30 is not particularly limited.

Optionally, as shown in fig. 2, the frame 2 is a metal frame, and a gap 20 is formed between a second portion of the metal frame 3 and the metal frame 2, the gap is communicated with a gap 30 of the gap 20, and the second portion includes a first metal arm 31 and a second metal arm 32.

In an implementation, the metal frame 2 and the metal bezel 3 may be integrally formed metal structures.

In the present embodiment, the frame 2 is made of an all-metal structure, and the gap 20 communicating with the broken seam 30 is opened in the region of the metal frame 2 located between the second antenna 5 and the first antenna 4, so as to cut the part of the metal frame 3 into the first metal arm 31 and the second metal arm 32, and to provide the gap 50 between the second antenna 5 and the first antenna 4, thereby realizing the insulation and the mutual proximity between the first antenna 4 and the second antenna 5.

Optionally, at least one of the slot 30, the slit 20 and the hollowed-out portion 34 formed on the first portion is filled with an insulating material.

In an implementation, the insulating material may be an insulating plastic.

In practical application, the gap 30 and the hollow portion 34 are filled with an insulating material, so that structural defects of the gap 30 and the hollow portion 34 to the metal frame 3 can be filled, and thus, the gap 30 and the hollow portion 34 are filled with the insulating material, so that a rear cover of the electronic device can be conveniently fixed on the metal frame 3, the structural strength of the electronic device can be enhanced, and in addition, in view of the fact that the insulating material in the hollow portion 34 blocks the main radiation direction of the second antenna 5, in practical application, the dielectric constant of the insulating material can be adjusted according to practical needs, so as to reduce the reflection efficiency of the insulating material to the second antenna 5 for receiving or transmitting signals.

In addition, the gap 20 is filled with an insulating material, and the first metal arm 31 and the second metal arm 32 can be fixed to the frame 2 through the insulating material, so that the first metal arm 31 and the second metal arm 32 are prevented from being bent by an external force, and the structural strength of the electronic device can be enhanced.

Optionally, as shown in fig. 5, when the second antenna 5 is a millimeter wave antenna and the millimeter wave antenna is located in the millimeter wave antenna module, a surface of the millimeter wave antenna module facing the slot 20 is aligned with an edge of the slot 20.

In this embodiment, the first side of the slot 20 is aligned with a surface of the millimeter wave antenna module facing the slot 20, the second side of the slot may be aligned with a surface of the metal frame 3 facing the slot 20, and the first side and the second side are opposite sides of the slot 20. In this way, the gap 20 is opened in the metal frame, and the first antenna 4 and the second antenna 5 are respectively brought close to each other as far as possible while avoiding the gap 20, so that the width of the gap 20 can be reduced, and the structural strength of the metal frame can be improved.

Optionally, as shown in fig. 2, the metal frame is provided with a second groove, the second antenna 5 is erected on the opening side of the second groove to form a first gap 21 between the second antenna 5 and the bottom of the second groove, and the first feeding structure 33 passes through the first gap 21 to be connected to the motherboard 1.

In this embodiment, the second groove is formed in the metal frame, so that the first feeding structure 33 can pass through the second groove to form the first gap 21 between the second antenna 5 and the bottom of the second groove, so as to connect with the main board 1 on the side of the second antenna 5 facing away from the first antenna 4. In this way, the length of the first feeding structure 33 can be shortened to improve the feeding performance of the first antenna 4.

Further, the first antenna 4 further includes an impedance matching network and an impedance switch, and in the case that the first feeding structure 33 is a first feeding FPC, the impedance matching network and the impedance switch of the first antenna 4 may be disposed on the first feeding FPC and located in the first gap 21.

In this embodiment, the impedance matching function of the first antenna 4 can be realized by arranging the impedance matching network (for example, a collective parameter device, which may specifically include components such as a capacitor and an inductor) and the impedance switch of the first antenna 4 on the feed FPC, so that the first antenna 4 can perform a better impedance input, thereby improving the antenna performance of the first antenna 4.

Alternatively, as shown in fig. 3, the hollowed-out portion 34 may include a first recessed portion and a second recessed portion, the second recessed portion is located in the main radiation direction (x direction shown in fig. 1) of the second antenna 5, wherein the first recessed portion is formed by the metal frame 3 being recessed downward in the z direction (i.e. the direction close to the frame 2) shown in fig. 1, and the second recessed portion is formed by the groove bottom of the first recessed portion being recessed downward continuously in the z direction shown in fig. 1.

In this way, the sinking depth of the first concave part in the hollow part 34, which is not in the main radiation direction of the second antenna 5, is less than the sinking depth of the second concave part in the main radiation direction of the second antenna 5, so that the rear cover can be connected with the part of the metal frame 3 where the first concave part is located, and the shielding of the metal frame 3 to the main radiation direction of the second antenna 5 is reduced. On the basis of not influencing the appearance of the electronic equipment, the radiation performance of the second antenna 5 is improved.

In the embodiment of the application, a metal frame is divided into a first metal arm and a second metal arm by forming a broken seam on the metal frame, and the first metal arm is connected with the main board through a first feed structure to form the first antenna; and will the second antenna is fixed in on the frame, first antenna is located the main radiation direction of second antenna, just the second antenna with have the clearance between the first antenna to through set up fretwork portion on the metal frame, so that the receiving and transmitting signal of second antenna can not sheltered from by the metal frame, like this, realized the feed of first antenna promptly, ensure the radiation performance that can be close to the second antenna that first antenna set up again, make on electronic equipment in same region, can set up first antenna and second antenna, so as to avoid setting up first antenna and second antenna respectively in electronic equipment's different regions and the big problem of antenna occupation space that causes.

Please refer to fig. 6 to 10, which are structural diagrams of another electronic device according to an embodiment of the present disclosure, the electronic device shown in fig. 6 to 10 is the same as the electronic device shown in fig. 1 to 5, and an FR2 antenna can be simultaneously disposed in an area of the electronic device where the FR1 antenna is disposed, so as to fully utilize space and enable the FR1 antenna and the FR2 antenna to have good communication effect. The embodiment of the present application provides another electronic device, which is different in that:

in this embodiment, the electronic device further includes:

and a third antenna 6, wherein the second metal arm 32 is connected to the main board 1 through a second feeding structure 35 to form the third antenna 6, and the first antenna 4 and the third antenna 6 are FR1 antennas.

In a specific implementation, the first antenna 4 and the third antenna 6 are FR1 antennas, and it can be understood that: the first antenna 4 is a first FR1 antenna and the third antenna 6 is a second FR1 antenna. And the first antenna 4 and the third antenna 6 may operate in different operating frequency bands, respectively.

The slit 30 may divide the metal bezel 3 into a first metal arm 31 and a second metal arm 32 having equal lengths, or the first metal arm 31 may be longer than the second metal arm 32.

Optionally, as shown in fig. 7, the frame 2 is further provided with a third groove, the second antenna 5 is erected on the open side of the third groove, so as to form a second gap 22 between the second antenna 5 and the bottom of the third groove, and the second feeding structure 35 passes through the second gap 22, so as to be connected to the motherboard 1.

In this embodiment, the second feeding structure 35 is the same as the first feeding structure 33 in the embodiment shown in fig. 1 to 5, and the formation structure of the second gap 22 is the same as the formation structure of the first gap 21 in the embodiment shown in fig. 1 to 5, which is not repeated herein. In addition, the length of the second feeding structure 35 can be shortened in this embodiment, so as to improve the feeding performance of the third antenna 6.

Optionally, the second feeding structure 35 is a second feeding FPC, the third antenna 6 further includes an impedance matching network and an impedance switch, and the impedance matching network and the impedance switch of the third antenna 6 are disposed on the second feeding FPC and located in the second gap 22.

In this embodiment, the impedance matching network and the impedance switch of the third antenna 6 have the same structures and functions as the impedance matching network and the impedance switch of the first antenna 4 in the embodiment shown in fig. 1 to fig. 5, and are not described again.

The electronic device in the embodiment shown in fig. 6 to 10 has the same beneficial effects as the electronic device in the embodiment shown in fig. 1 to 5, and on this basis, the electronic device in the embodiment shown in fig. 6 to 10 further has a third antenna, and the feeding function of the third antenna is realized through the second feeding structure, so that the first antenna, the second antenna and the third antenna are simultaneously arranged in the same antenna arrangement region, the installation space of the antenna on the electronic device can be further reduced, and the screen occupation ratio of the electronic device is favorably improved.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one of 8230, and" comprising 8230does not exclude the presence of additional like elements in a process, method, article, or apparatus comprising the element. Further, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions recited, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the present embodiments are not limited to those precise embodiments, which are intended to be illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims.

Claims

1. An electronic device, comprising: mainboard, frame and around locating the metal frame of frame periphery, electronic equipment still includes: a first antenna and a second antenna;

a first part, opposite to the second antenna, of the metal frame is hollowed out to form a hollowed-out part, and the hollowed-out part is located in a coverage range of a rear cover of the electronic equipment;

the first antenna is an FR1 frequency band antenna, and the second antenna is a millimeter wave antenna.

2. The electronic device of claim 1, wherein the frame is a metal frame, and a gap is provided between a second portion of the metal bezel and the metal frame, the gap being in communication with the break, the second portion comprising the first metal arm and the second metal arm.

3. The electronic device of claim 2, wherein the second antenna is a millimeter wave antenna in a millimeter wave antenna module, and a side of the millimeter wave antenna module facing the slot is aligned with an edge of the slot.

4. The electronic device of claim 2, wherein at least one of the break, the gap, and the void formed in the first portion is filled with an insulating material.

5. The electronic device according to claim 2, wherein the metal frame is provided with a second groove, the second antenna is erected on an open side of the second groove to form a first gap between the second antenna and a groove bottom of the second groove, and the first feeding structure passes through the first gap to be connected with the main board.

6. The electronic device of claim 5, wherein the first feeding structure is a first feeding FPC, and wherein the first antenna further comprises an impedance matching network and an impedance switcher, the impedance matching network and the impedance switcher of the first antenna being disposed on the first feeding FPC and within the first gap.

7. The electronic device of claim 1, further comprising:

and the second metal arm is connected with the main board through a second feed structure to form the third antenna, wherein the first antenna and the third antenna are FR1 antennas.

8. The electronic device of claim 7, wherein the frame is further provided with a third groove, the second antenna is erected on the open side of the third groove to form a second gap between the second antenna and the bottom of the third groove, and the second feeding structure passes through the second gap to connect with the motherboard.

9. The electronic device of claim 8, wherein the second feeding structure is a second feeding FPC, and the third antenna further comprises an impedance matching network and an impedance switch, the impedance matching network and the impedance switch of the third antenna being disposed on the second feeding FPC and within the second gap.