CN117013255A

CN117013255A - Terminal Equipment

Info

Publication number: CN117013255A
Application number: CN202311094020.5A
Authority: CN
Inventors: 温靖轩; 杨松岳
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2023-08-29
Filing date: 2023-08-29
Publication date: 2023-11-07

Abstract

The application discloses terminal equipment, and belongs to the technical field of electronic equipment. The terminal device includes: the circuit board, the frame body, the battery cover, the screen and the first feed structure; the circuit board is arranged on the frame body; the screen and the battery cover are respectively positioned at two sides of the frame body; the battery cover is provided with a metal cavity, and the metal cavity is arranged on one side of the battery cover facing the screen; one end of the first feed structure is connected with the circuit board, and the other end of the first feed structure excites the metal cavity to generate resonance; the metal cavity is provided with a first radiation opening towards one side of the side frame of the frame body.

Description

Terminal equipment

Technical Field

The application belongs to the technical field of electronic equipment, and particularly relates to terminal equipment.

Background

Communication performance is one of the core indexes of the terminal equipment, and comprises factors such as stability of signal reception and transmission, transmission rate and the like. Thus, communication performance is one of the indispensable considerations in the product development stage. The antenna architecture of the existing terminal equipment has limited working frequency band, mainly adds a Laser-Direct-structuring (LDS) antenna and an FPS antenna on a main and auxiliary board bracket, but has poor antenna performance and can not meet the actual use requirement.

The resonant cavity antenna has the advantages of smaller volume, higher anti-interference capability and the like, and can effectively avoid the interference between the antenna and other components and improve the performance of the antenna. However, the internal layout space of the terminal equipment is limited, and the addition of the resonant cavity antenna can affect the stacking design of other components on the main board, so that the difficulty of the internal layout design of the terminal equipment is increased.

Disclosure of Invention

The embodiment of the application aims to provide terminal equipment, which can solve the problem that the existing antenna design scheme influences the stacking design of other components on a main board and increases the difficulty of internal layout design of the terminal equipment.

In a first aspect, an embodiment of the present application provides a terminal device, including: the circuit board, the frame body, the battery cover, the screen and the first feed structure;

the circuit board is arranged on the frame body;

the screen and the battery cover are respectively positioned at two sides of the frame body;

the battery cover is provided with a metal cavity, and the metal cavity is arranged on one side of the battery cover facing the screen;

one end of the first feed structure is connected with the circuit board, and the other end of the first feed structure excites the metal cavity to generate resonance;

the metal cavity is provided with a first radiation opening towards one side of the side frame of the frame body.

In the embodiment of the application, the metal cavity serving as the antenna structure is arranged on one side of the battery cover facing the screen, one end of the first power supply structure is connected with the circuit board, the other end of the first power supply structure excites the metal cavity to generate resonance, the power supply of the antenna structure is realized through the first radiation opening arranged on one side of the metal cavity facing the side frame of the frame body, signals are radiated out through the antenna structure, the designed antenna structure does not occupy the space of the main board and does not influence the stacking design of other components on the main board, and therefore, the difficulty of the internal layout design of terminal equipment is reduced.

Drawings

Fig. 1 is one of schematic structural diagrams of a terminal device according to an embodiment of the present application;

FIG. 2 is a second schematic diagram of a terminal device according to an embodiment of the present application;

fig. 3 is a top perspective view of the terminal device of an embodiment of the present application looking down from the battery cover;

fig. 4 is a schematic view of radiation directions of an antenna structure formed by a metal cavity according to an embodiment of the present application;

fig. 5 is a third schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 6 is a front perspective view of the whole terminal device according to the embodiment of the present application, as seen from the screen direction;

fig. 7 is a schematic diagram of a terminal device in use in a head-to-hand communication scenario according to an embodiment of the present application;

FIG. 8 is a schematic diagram of a terminal device in a state of use of a game hand according to an embodiment of the present application;

fig. 9 is a software execution logic diagram of a terminal device according to an embodiment of the present application;

fig. 10 is a fourth schematic structural diagram of a terminal device according to an embodiment of the present application;

FIG. 11 is a schematic diagram of a terminal device according to an embodiment of the present application;

fig. 12 is a sixth schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 13 is a seventh schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 14 is a schematic diagram of a terminal device according to an embodiment of the present application;

fig. 15 is a schematic view of a user usage state corresponding to a terminal device according to an embodiment of the present application;

fig. 16 is a ninth schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 17 is a schematic diagram of a terminal device according to an embodiment of the present application;

fig. 18 is an eleventh schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 19 is a schematic diagram of a terminal device according to an embodiment of the present application;

fig. 20A is a schematic view of radiation directions of an antenna structure formed by a spatial cavity on a terminal device according to an embodiment of the present application;

fig. 20B is a schematic view of radiation directions of an antenna structure formed by a metal cavity on a terminal device according to an embodiment of the present application;

FIG. 21 is a diagram showing thirteenth configuration of a terminal device according to an embodiment of the present application;

fig. 22 is one of schematic diagrams of a battery cover of a terminal device according to an embodiment of the present application;

fig. 23 is a second schematic view of a battery cover of the terminal device according to the embodiment of the present application;

fig. 24 is a third schematic view of a battery cover of the terminal device according to the embodiment of the present application;

fig. 25 is a fourteenth schematic diagram of a terminal device according to an embodiment of the present application;

fig. 26 is a fifteen schematic structural diagrams of a terminal device according to an embodiment of the present application;

fig. 27 is a schematic diagram of an equivalent antenna structure on a terminal device according to an embodiment of the present application;

fig. 28 is a second schematic diagram of an equivalent antenna structure on a terminal device according to an embodiment of the present application;

fig. 29 is a third schematic diagram of an equivalent antenna structure on a terminal device according to an embodiment of the present application;

fig. 30 is a schematic diagram of an equivalent antenna structure on a terminal device according to an embodiment of the present application;

fig. 31 is a schematic diagram of a composite antenna structure on a terminal device according to an embodiment of the present application;

fig. 32 is a schematic diagram of a metal microstrip antenna structure on a terminal device according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are obtained by a person skilled in the art based on the embodiments of the present application, fall within the scope of protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The terminal device provided by the embodiment of the application is described in detail below through specific embodiments and application scenarios thereof with reference to the accompanying drawings.

The terminal equipment in the embodiment of the application comprises, but is not limited to, mobile terminals such as a tablet, a mobile phone and the like.

Referring to fig. 1 to 32, an embodiment of the present application provides a terminal device, including: a circuit board 1, a frame 2, a battery cover 3, a screen 7 and a first feeding structure 4; wherein, the circuit board 1 is arranged in the frame body 2; the screen 7 and the battery cover 3 are respectively positioned at two sides of the frame body 2; the battery cover 3 is provided with a metal cavity 5, and the metal cavity 5 is arranged on one side of the battery cover 3 facing the screen 7; one end of the first feed structure 4 is connected with the circuit board 1, and the other end excites the metal cavity 5 to generate resonance; the side of the metal cavity 5 facing the side frame of the frame body 2 is provided with a first radiation opening.

The frame 2 may be a plastic frame or a metal frame, and is not particularly limited herein.

The metal cavity 5 serving as an antenna structure is arranged on one side, facing the screen 7, of the battery cover 3, so that the antenna structure does not occupy the space of a main board and does not influence the stacking design of other components on the main board, and the difficulty of the internal layout design of terminal equipment is reduced.

Here, the first feeding structure 4 includes, but is not limited to, a feeding probe, a coaxial line holder, a feeding line, a microstrip feeding line, a strip line feeding structure.

In particular, the first feed structure 4 is connected to the cavity interior of the metal cavity 5. Here, a radiation space is formed between the housing 2 and the battery cover 3 for the antenna structure to satisfy radiation conditions.

Optionally, the circuit board 1 includes a main board 11 and a sub-board 12; the main plate 11 and the auxiliary plate 12 are arranged on the same side of the battery cover 3; at least one region of the battery cover 3 is provided with a metal cavity 5; wherein, the whole part of the battery cover 3 corresponding to the region is made of metal material; alternatively, the inner surface and the outer surface of the battery cover 3 corresponding to the region are both made of metal materials.

Specifically, one end of the first feeding structure 4 is connected with the main board 11 and/or the auxiliary board 12, the other end is connected with the metal cavity 5, and resonance is generated by exciting the metal cavity 5 through one end connected with the metal cavity 5.

Alternatively, when the area is one, the area is located at one side edge of the battery cover 3; when the number of the areas is two, the two areas are respectively positioned at two opposite side edges of the battery cover 3.

As an alternative implementation manner, in the case that the battery cover 3 portions corresponding to the regions are entirely made of metal material, a side of each region facing the circuit board 1 has a metal layer with a preset thickness, at least one inner hollow is formed by the metal layer, and the metal cavity 5 has the first radiation opening. Since the antenna structure radiates the signal outwards. Optionally, the opening direction of said first radiation opening of the metal cavity 5 is towards the external environment.

Referring to fig. 2, two metal cavities 5 having a first radiation opening are formed by metal layers, and the metal cavities 5 are connected to the main board 11 through the first feeding structure 4. In fig. 2, the terminal device further includes a main board holder 6, and the screen 7 is fixed to one side of the main board holder 6, and the main board 11 and the battery 8 are fixed to the other side.

Fig. 3 corresponds to a top perspective view of the terminal device with the metal cavity 5 with the first radiation opening, seen from the battery cover, with two hollow interiors formed by metal layers. The metal cavity 5 on the left side of fig. 3 is connected to the main board 11 via the first feed structure 4, and the metal cavity 5 on the right side is connected to the sub-board 12 via the first feed structure 4.

The influence of the human body on the antenna is mainly frequency offset and absorption, and the antenna structure (cavity antenna) formed by the metal cavity is beneficial to the application, and when the antenna is in a handheld state, the lower antenna is greatly influenced, and at the moment, the main communication frequency band of the lower antenna is switched to the cavity antenna (formed by the metal cavity 5), so that the performance problem of Dual-SIM Dual-Active (DSDA) can be effectively solved, multi-antenna round transmission and multi-antenna reception are realized, and the actual experience of a user is improved.

Specifically, the number of the metal cavities 5 is plural, the plurality of metal cavities 5 are arranged in an array, and the radiation openings of the plurality of metal cavities 5 are in the same direction, as shown in fig. 5.

In the embodiment shown in fig. 5, a part of the metal cavities 5 of the plurality of metal cavities 5 is connected to the main board 11 by the first feeding structure 4, and another part of the metal cavities 5 is connected to the sub-board 12 by the first feeding structure 4.

Referring to fig. 6, for a front perspective view of the whole terminal device viewed from the screen direction, the right side of the screen is defined as an antenna array a, and the left side of the screen is defined as an antenna array B. Through set up metal cavity 5 at the opposite both sides edge of battery cover 3, set up coaxial line seat or other contact but the feed structure on battery cover 3, feed metal cavity 5 through mainboard 11 and subplate 12, increase microstrip feeder or band wire feed structure (i.e. first feed structure 4) on whole battery cover 3, be connected to in the cavity of metal cavity 5.

Fig. 6 also illustrates the layout of the upper and lower antennas of the existing terminal device, in order to reduce the loss caused by transmission, the upper and lower antennas are generally placed near the main board 11 and the auxiliary board 12, under the layout, the influence of the antenna on the antenna efficiency is relatively obvious due to the influence of human body, while the metal shell of the metal cavity 5 as the antenna structure is only used for controlling the working frequency band of the antenna structure, and the influence of human body on the antenna is relatively small, so that the influence of the transmission loss and the environment on the antenna performance is negligible. Therefore, the metal cavities 5 are provided at opposite side edges of the battery cover 3 (specifically, at opposite side edges of the battery cover 3 except for opposite side edges where the upper and lower antennas are located), and good isolation can be obtained because there are few antennas laid out at these positions.

As shown in fig. 6, in combination with the actual usage scenario, most users live in the positions with better network coverage conditions, so that the antennas on two sides can be designed as the LTE main frequency band and the wifi frequency band. The design can improve the network experience of the user under the actual use situation of the user.

In order to provide a better use experience for the user, taking fig. 6 as an example, the switching of the antenna can be performed by combining software, an electronic compass and a receiver triggering state. A specific software execution logic diagram can be seen in fig. 9.

1. When the earphone is opened, the earphone is judged to be in a head-hand use state, and the antenna array on the side edge is not influenced by a human body too much due to the metal cavity serving as an antenna structure, so that the performance loss is small, and better conversation quality can be provided for users.

The electronic compass and other sensors are used for judging whether the actual use state of the user is left hand holding or right hand holding, further, the emission of the antenna array A and the emission of the antenna array B can be independently controlled, and better experience is provided by combining the actual use situation.

Referring to fig. 7, a schematic diagram of a head-to-hand communication scenario is used. When the mobile phone is in the left hand holding state shown in the figure, the mobile phone can be operated by the antenna array A, at the moment, the influence of human body is small, the conversation quality is high, and the array layout schematic diagram shown in the figure 6 is suitable for improving the communication of a cellular network and the use of users in a wifi network scene.

2. When the earphone is closed, the antenna input impedance state and the sensor state of the closed-loop antenna tuner can judge the use scene of a user through the change of the capacitance value of the sensor. The method comprises the following steps:

1) When the sensor has no obvious change and the sensor and the tuner detect that the input impedance of the antenna has no change, the terminal equipment can be determined to be in a static state, the antenna array A and the antenna array B can work simultaneously, and the network use quality is improved.

2) When the sensor does not change and the sensor senses that the mobile phone is vertical and the tuner detects the impedance change, the terminal equipment can be determined to be in a single-hand holding state, the antenna array A and the antenna array B can still work simultaneously, and the network use quality is improved.

3) When the sensor detects the capacitance change and the sensor senses the mobile phone level and the tuner detects the impedance change, the user can be determined to be in a game hand use state, as shown in fig. 8, and the antenna array a and the antenna array B can provide better network quality.

As another alternative implementation manner, in the case that the inner surface and the outer surface of the battery cover 3 corresponding to the areas are made of metal materials, a plurality of metal partitions 9 are distributed in each area, and the metal cavities 5 are formed between two adjacent metal partitions 9, as can be seen in fig. 10 and 11.

That is, the inner and outer surfaces of the battery cover 3 portion corresponding to the region are coated with a metal material. Here, a nonmetallic medium is filled between the inner surface and the outer surface of the battery cover 3 portion corresponding to the region. According to the implementation mode, the antenna structure is directly embedded in the battery cover 3, and the half-mode dielectric integrated waveguide is formed by adding the metal partition, and the antenna structure is directly embedded in the battery cover 3, so that the whole size of the terminal equipment can be thinner.

It should be noted that, compared with the traditional waveguide and cavity structure, the dielectric integrated waveguide has the advantages of low profile, low loss and easy integration, and is less affected by the outside. Because the whole dielectric integrated waveguide has larger volume, the antenna structure corresponding to the implementation mode is a half-mode dielectric integrated waveguide.

In an embodiment specifically corresponding to this implementation, referring to fig. 12, a plurality of holes 10 are provided in the area, the inner surfaces of a plurality of holes 10 are all made of metal materials, and the metal partition 9 is formed between two adjacent holes 10.

Wherein the hole 10 is a through hole or a blind hole. Specifically, in the case where the hole 10 is a blind hole, the opening of the hole is perforated toward the screen 7, that is, from the inner surface toward the outer surface of the battery cover 3, to form a blind hole that does not penetrate the outer surface.

In this implementation, alternatively, the shape of the region is rectangular, and a plurality of the metal partitions 9 are distributed at one side edge of the region, see fig. 11 and 12.

On the basis of this implementation, antennas in various dielectric integrated forms, such as horn antennas, i.e. see fig. 13, may be implemented, and alternatively, the area includes a rectangular sub-area 101 and a plurality of trapezoidal sub-areas 102, where the short sides of each of the trapezoidal sub-areas 102 respectively coincide with a first side of the rectangular sub-area 101, and the distance from the first side to a third side of the battery cover 3 is smaller than the distance from a second side of the rectangular sub-area 101 to the third side, where the second side is parallel to the first side and the third side is parallel to the first side; a plurality of said metal partitions 9 are distributed over the remaining edges of said area except the long sides of each said trapezoidal subregion 102.

The horn antenna formed by the method can further increase the antenna gain and obtain better directivity.

Due to the limitation of a mechanical structure, the layout area of the folding screen terminal antenna is only 3/4 of that of a traditional terminal, and the multiplexing frequency bands of a single antenna are more, so that the consistency of the performance is difficult to ensure. The other side is required by the main screen and the auxiliary screen, the radio frequency path cannot be provided for the antenna layout, and the overall environment is poor. When the existing folding screen terminal is in a folding state, the whole antenna is greatly affected by the environment, and the hand-held position in the use process of a user is exactly the position of the antenna design, as shown in fig. 14, the long side of the terminal equipment model is often designed to be low-frequency LB, and the communication main frequency bands which are arranged at the upper and lower corners and the corners are designed to be medium-high frequency MHBs, especially 4G and 5G, are all in the human body contact range, as shown in fig. 15.

In order to effectively improve the antenna performance of the folder type antenna under the use scene of the user, the metal cavity 5 can be arranged in the main and auxiliary screens at the other side by combining the implementation modes, and as shown in fig. 16, the metal cavity 5 serving as an antenna structure is arranged at the inner side of the battery cover 3, so that the antenna volume is multiplexed, and meanwhile, the overall user experience is improved.

In still another alternative implementation manner, the terminal device of the embodiment of the present application may further include:

a second feeding structure 13, wherein one end of the second feeding structure 13 is connected to the outer surface of the metal cavity 5, and the other end is connected to the main board 11, as shown in fig. 17; alternatively, one end of the second feeding structure 13 is connected to the battery cover 3, and the other end is connected to the main board 11, as shown in fig. 18;

a plurality of first ground posts 14, wherein a part of the first ground posts 14 connect the battery cover 3 and the main board 11, and another part of the first ground posts 14 connect the main board 11 and the outer surface of the metal cavity 5, see fig. 18; alternatively, a plurality of the first ground posts 14 connect the battery cover 3 and the main board 11, see fig. 19;

a motherboard bracket 6; the motherboard bracket 6, the plurality of first grounding posts 14 and the battery cover 3 form a space resonant cavity 15, and a second radiation opening is arranged on one side of the space resonant cavity 15, which faces the side frame of the frame body 2. Here, the main board holder 6 fixes the screen 7 on one side and the main board 11 and the battery 8 on the other side.

As shown in fig. 17, rectangular areas of both side edges of the battery cover 3 are provided with a metal cavity 5 as an antenna structure, wherein a first feeding structure 4 is connected to the inner wall of the metal cavity 5 for exciting the internal mode of the antenna structure.

The above-mentioned another antenna structure is to better reuse space, the battery cover 3 can be regarded as the upper wall of the metal cavity 5, the main board 11 and the main board bracket 6 can be regarded as the lower wall of the metal cavity 5, and the side wall of the metal cavity 5 is connected with the battery cover 3 and the main board bracket 6 by a plurality of distributed first grounding posts 14. Note that, the form of the first grounding post 14 is not limited to a spring sheet, a metal post, foam, and the like. Here, the plurality of first ground posts 14 are surrounded by a half-surrounding structure with one face open and three sides connected, and form a space resonator 15 as another antenna structure with the main board holder 6 and the battery cover 3, see fig. 18.

Specifically, the main board 11 is connected with the outer wall of the metal cavity 5 through a feed probe or a spring plate, as shown in fig. 17; alternatively, the main board 11 and the battery cover 3 are connected by a feed probe or a spring plate (which does not affect the internal mode of the antenna structure constituted by the metal cavity), and as shown in fig. 18, the space resonator 15 is constituted by the upper part of the battery cover 3, the main board holder 6, and the side ground posts (the plurality of first ground posts 14) is excited.

In the implementation manner, the metal cavity 5 serving as one antenna structure and the space resonant cavity 15 serving as another antenna structure can be designed simultaneously on the basis of unchanged space, and the design is more flexible. The two antennas can be designed into different frequency antennas, or the same frequency antennas increase the number of antennas, so as to meet the higher and higher diversity antenna requirements of terminal equipment. In addition, the two antenna structures can be designed to have different patterns so as to meet different use scene requirements of users. The antenna structure formed by the metal cavities is suitable for a game transverse screen hand-held scene, and is shown in FIG. 20B; and the antenna structure formed by the space resonant cavity is suitable for a single hand holding scene, and the like, as shown in fig. 20A.

Furthermore, fig. 18 is only one form of this implementation, and the volume of the spatial cavity 15 may be further expanded. As shown in fig. 21, the opening of the spatial resonator 15 is variable in orientation; the space between the battery cover 3 and the main board bracket 6 is subdivided by a multi-feed multi-ground mode to form a plurality of space resonant cavities.

In addition, due to evolution and update of terminal equipment, more and more battery covers 3 adopt a splicing form of metal and nonmetal (plain skin, plastic, ceramic, etc.), as shown in fig. 22 to 24.

Based on fig. 22, a metal cavity can be combined to make a multiplexing structure antenna design. That is, in an alternative embodiment, in the case where the battery cover 3 portion corresponding to the region is entirely made of a metal material and the region is a strip-shaped region, the terminal device further includes:

a third feeding structure 16, wherein one end of the third feeding structure 16 is connected to the outer surface of the metal cavity 5, the other end is connected to the main board 11, see fig. 25 and 26, or one end of the third feeding structure 16 is connected to the battery cover 3, and the other end is connected to the main board 11;

a plurality of second ground posts 17, wherein the plurality of second ground posts 17 connect the outer surface of the metal cavity 5 and the main board 11, see fig. 25 and 26; alternatively, a plurality of the second ground posts 17 connect the battery cover 3 and the main board 11.

Note that, the strip-shaped region, the third feeding structure 16 and the plurality of second ground posts 17 form a preset equivalent antenna structure, see fig. 27 to 30.

That is, referring to fig. 25, metal cavities 5 are provided on the inner walls of the metal strips on the upper and lower sides of the battery cover 3 in the form of the embodiment described above with respect to the metal cavities. On the basis of the metal cavity 5, the metal strip (strip-shaped area, made of metal) of the battery cover 3 is regarded as a single-stage sub-antenna, the main board 11 and the main board support 6 are regarded as the reference ground of the antenna, a feeding point is set at the position shown in the figure to excite the whole metal strip, and a plurality of grounding posts (second grounding posts 17) are arranged as the lower place of the antenna, so that an equivalent IFA antenna can be formed, as shown in fig. 27. In addition, different antenna forms, such as IFA, monopole, T antenna, etc., can be equivalently implemented by setting appropriate grounding and feeding positions according to the design frequency band requirements, as shown in fig. 28 to 30.

Based on fig. 24, a metal cavity can be combined to make a multiplexing structure antenna design. As shown in fig. 31, the battery cover 3 and the metal cavity 5 of the whole metal part are used as a whole metal layer, the whole metal layer is used as a radiator 18 of the microstrip antenna by the feed probe and is connected with the outer wall of the metal layer, and the main board support 6 is used as a radiation reference ground of the microstrip antenna to additionally form a metal microstrip antenna, as shown in fig. 32. The equivalent microstrip antenna and the original metal cavity 5 form a composite design antenna.

The application fully utilizes the space between the battery cover and the terminal, effectively increases the number of more antennas, realizes multi-antenna round transmission and reception, improves the signal receiving capability, reduces the time delay, improves the conversation quality and the like.

The application can effectively design various special antenna forms, such as low frequency, broadband, multi-frequency, antenna arrays and the like, so as to meet the increasingly complex scene demands.

The application has wide application range, and can be used for various terminal equipment of all-metal and non-all-metal battery rear covers, such as mobile terminal equipment of tablet computers, mobile phones and the like.

The application can multiplex antenna structures simultaneously, realize multi-antenna design, further expand the number of antennas on the basis of the existing space, and simultaneously support different battery cover designs.

The application can be further expanded, and the under-screen antenna is realized on the folding machine type, so that the number of the antennas is increased.

The electronic device may be a terminal, or may be other devices than a terminal. By way of example, the electronic device may be a mobile phone, tablet computer, notebook computer, palm computer, vehicle-mounted electronic device, mobile internet appliance (Mobile Internet Device, MID), augmented reality (augmented reality, AR)/Virtual Reality (VR) device, robot, wearable device, ultra-mobile personal computer, UMPC, netbook or personal digital assistant (personal digital assistant, PDA), etc., and may also be a network attached storage (Network Attached Storage, NAS), personal computer (personal computer, PC), television (TV), teller machine or self-service machine, etc., and the embodiments of the present application are not limited in particular.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. A terminal device, comprising: the circuit board, the frame body, the battery cover, the screen and the first feed structure;

the circuit board is arranged on the frame body;

2. The terminal device of claim 1, wherein the circuit board comprises a main board and a sub-board; the main board and the auxiliary board are arranged on the same side of the battery cover;

at least one area of the battery cover is provided with the metal cavity; wherein the battery cover part corresponding to the region is entirely made of metal material; or the inner surface and the outer surface of the battery cover part corresponding to the region are both made of metal materials.

3. The terminal device according to claim 2, wherein in the case where the battery cover portions corresponding to the regions are entirely made of a metal material, a side of each of the regions facing the circuit board has a metal layer of a predetermined thickness, at least one of the metal cavities having the first radiation openings is hollow in the interior thereof.

4. A terminal device according to claim 3, wherein the plurality of metal cavities are arranged in an array, and the radiation openings of the plurality of metal cavities are in the same direction.

5. The terminal device according to claim 2, wherein when the area is one, the area is located at a side edge of the battery cover;

when the number of the areas is two, the two areas are respectively positioned at the two opposite side edges of the battery cover.

6. The terminal device according to claim 2, wherein in the case where the inner surface and the outer surface of the battery cover portion corresponding to the regions are both made of a metal material, a plurality of metal partitions are distributed in each of the regions, and the metal cavity is formed between two adjacent metal partitions.

7. The terminal device of claim 6, wherein a plurality of holes are formed in the area, the inner surfaces of the holes are made of metal materials, and the metal partition is formed between two adjacent holes.

8. The terminal device of claim 6, wherein the area is rectangular in shape and a plurality of the metal partitions are distributed at one side edge of the area.

9. The terminal device of claim 6, wherein the area comprises a rectangular sub-area and a plurality of trapezoidal sub-areas, short sides of each of the trapezoidal sub-areas respectively coinciding with a first side of the rectangular sub-area, a distance from the first side to a third side of the battery cover being smaller than a distance from a second side of the rectangular sub-area to the third side, wherein the second side is parallel to the first side and the third side is parallel to the first side;

the metal partitions are distributed on the rest edges of the area except the long edges of the trapezoid subareas.

10. The terminal device according to claim 2, characterized in that the terminal device further comprises:

one end of the second feed structure is connected with the outer surface of the metal cavity, and the other end of the second feed structure is connected with the main board, or one end of the second feed structure is connected with the battery cover, and the other end of the second feed structure is connected with the main board;

a plurality of first grounding posts, wherein one part of the first grounding posts are connected with the battery cover and the main board, and the other part of the first grounding posts are connected with the main board and the outer surface of the metal cavity; or, a plurality of first grounding posts connect the battery cover and the main board;

a motherboard bracket; the main board support, the first grounding columns and the battery cover form a space resonant cavity, and a second radiation opening is formed in one side of the space resonant cavity, which faces to the side frame of the frame body.

11. The terminal device according to claim 2, wherein in the case where the battery cover portion corresponding to the area is a metal material as a whole and the area is a strip-shaped area, the terminal device further comprises:

one end of the third feed structure is connected with the outer surface of the metal cavity, the other end of the third feed structure is connected with the main board, or one end of the third feed structure is connected with the battery cover, and the other end of the third feed structure is connected with the main board;

and the second grounding columns are connected with the outer surface of the metal cavity and the main board, or are connected with the battery cover and the main board.