CN210607597U

CN210607597U - Electronic device

Info

Publication number: CN210607597U
Application number: CN201921927253.8U
Authority: CN
Inventors: 姚坤
Original assignee: Realme Chongqing Mobile Communications Co Ltd
Current assignee: Realme Chongqing Mobile Communications Co Ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-05-22
Anticipated expiration: 2029-11-08

Abstract

The utility model provides an electronic equipment, including antenna body and camera support. One end of the antenna body is electrically connected with an antenna signal source, and the other end of the antenna body is electrically connected with a reference ground to form a closed loop. The camera support is used for fixing a camera assembly of the electronic equipment, the camera support comprises a protruding portion located in an antenna clearance area of the antenna body, the protruding portion is coupled with the antenna body to generate a resonance state, and the resonance state corresponds to a coupling frequency. Therefore, the bulge protruding into the antenna clearance area in the camera support is coupled with the antenna, resonance higher than the working frequency of the antenna is generated, and the resonance is used for receiving and transmitting electromagnetic waves with higher frequency, so that the bandwidth of the antenna is expanded and the signals of electronic equipment are enhanced by utilizing the camera support.

Description

Electronic device

Technical Field

The utility model relates to the field of communication technology, in particular to electronic equipment.

Background

At present, due to the addition of various functional devices, antenna clearance areas of electronic equipment in the market are continuously compressed, and under the condition of some extreme designs, for example, pole screens, water drop screens, bang screens and other electronic equipment which are used for arranging cameras too close to a top frame can protrude into the antenna clearance areas, so that the antennas are prevented from receiving and transmitting high-frequency signals, the signals of the antennas are weakened, and the bandwidths of the antennas are narrowed.

SUMMERY OF THE UTILITY MODEL

One purpose of the utility model is to solve the technical problem that the camera bracket can protrude into the antenna clearance area to narrow the bandwidth of the antenna in the prior art;

in order to solve the technical problem, the utility model adopts the following technical scheme:

according to an aspect of the present invention, the utility model provides an electronic device, include:

the antenna comprises an antenna body, wherein one end of the antenna is electrically connected with an antenna signal source, and the other end of the antenna is electrically connected with a reference ground to form a closed loop;

the camera support is used for fixing the camera assembly of the electronic equipment and comprises a protruding portion located in an antenna clearance area of the antenna body, the protruding portion is coupled with the antenna body to generate a resonance state, and the resonance state corresponds to a coupling frequency.

According to the above technical scheme, the utility model discloses following advantage and positive effect have at least:

the utility model discloses in, through making bulge and antenna coupling in the outstanding antenna clearance area in the camera support produce the resonance that is higher than the operating frequency of antenna for the higher electromagnetic wave of receiving and dispatching frequency just so through the utilization to camera support, has extended the bandwidth of antenna, has strengthened electronic equipment's signal.

Drawings

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;

fig. 2 is a schematic view of a camera holder structure of the electronic device shown in fig. 1;

fig. 3 is a schematic structural diagram of an antenna body of the electronic device shown in fig. 1;

FIG. 4 is a schematic structural diagram of a portion of the electronic device shown in FIG. 1;

fig. 5 is a schematic structural diagram of the electronic device shown in fig. 4 from a side view.

Detailed Description

While the present invention may be susceptible to embodiment in different forms, there is shown in the drawings and will herein be described in detail only some specific embodiments thereof with the understanding that the present description is to be considered as an exemplification of the principles of the invention and is not intended to limit the invention to that as illustrated herein.

Thus, a feature indicated in this specification will serve to explain one of the features of an embodiment of the invention, and not to imply that every embodiment of the invention must have the described feature. Further, it should be noted that this specification describes many features. Although some features may be combined to show a possible system design, these features may also be used in other combinations not explicitly described. Thus, the combinations illustrated are not intended to be limiting unless otherwise specified.

In the embodiments shown in the drawings, directional references (such as upper, lower, left, right, front and rear) are used to explain the structure and movement of the various elements of the invention not absolutely, but relatively. These descriptions are appropriate when the elements are in the positions shown in the drawings. If the description of the positions of these elements changes, the indication of these directions changes accordingly.

Some embodiments of the invention are further elaborated below with reference to the drawings of the present description. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Referring to fig. 1 to 3, an electronic device is provided. The electronic device comprises an antenna body 10, a camera support 20, an antenna signal source 80 and a reference ground 90. One end of the antenna body 10 is electrically connected to the antenna signal source 80, and the other end is electrically connected to the reference ground 90, thereby forming a closed loop. The camera support 20 partially protrudes into the antenna clearance area of the antenna body 10 to couple with the antenna body 10, so as to generate a resonant state, wherein the resonant state corresponds to a coupling frequency, and the coupling frequency is higher than the frequency corresponding to the antenna body 10, so that the camera support can be used for receiving and transmitting electromagnetic waves with higher frequency. For example, in the embodiment, the values of the coupling frequency are in the frequency segments 2500-. Therefore, by utilizing the camera support, the problem that the camera support 20 partially protrudes into the antenna clearance area to obstruct the antenna signal is solved, the signal of the electronic device is enhanced, and the bandwidth of the antenna is expanded. For example, in this embodiment, the antenna can receive and transmit electromagnetic waves of the frequency band 900-.

The camera bracket 20 is used to fix a camera assembly of the electronic device, and the camera assembly of the electronic device may be one or more of all front-facing camera assemblies of the electronic device, and may also be one or more of all rear-facing cameras of the electronic device. For the front camera assembly, the camera bracket 20 may be used to fix the front camera assembly of the non-full screen, or may be used to fix the front camera assembly of the special-shaped screen such as the pole screen, the water drop screen, and the bang screen.

In order to achieve a better display effect and minimize the influence of the camera on the image display, the front camera component of the polar screen device is generally disposed at a position close to a corner of the device, and this arrangement may cause the part of the camera bracket 20 for fixing the front camera component to protrude into the antenna clearance area, thereby causing a hindrance to the antenna signal.

Referring to fig. 2, the camera bracket 20 includes a protruding portion 21, a fixing portion 22, and a groove portion 23.

The protruding portion 21 is located in the antenna clearance area of the antenna body 10, and is coupled with the antenna body 10 to generate a resonance state, where the resonance state corresponds to a coupling frequency. The coupling frequency, i.e., the coupling frequency corresponding to the resonance generated by the coupling between the camera support 20 and the antenna body 10, is higher than the frequency corresponding to the antenna body, so that the camera support can be used for receiving and transmitting electromagnetic waves with higher frequency. For example, in the embodiment, the values of the coupling frequency are in the frequency segments 2500-. Thus, in this embodiment, the antenna can receive and transmit electromagnetic waves of the frequency band 900-. Therefore, the problem of obstruction of antenna signals caused by the fact that the protruding part 21 protrudes into the antenna clearance area is solved by utilizing the protruding part 21, and the bandwidth of the antenna is expanded while the signals of the electronic equipment are enhanced.

It is to be understood that in the present embodiment, the coupling frequency may include the second coupling frequency. In a specific embodiment of the present invention, the protruding portion 21 and the antenna body 10 are coupled to form a coupling capacitor, so as to generate a resonance state, where the resonance state corresponds to the second coupling frequency.

It is understood that the second coupling frequency may cover a part of the frequency band in which the coupling frequency is located, or may cover all of the frequency band in which the coupling frequency is located. In one embodiment of the present invention, the value of the second coupling frequency is in the frequency band 2555-.

Meanwhile, the protrusion 21 located in the antenna clearance area of the antenna body 10 can also effectively protect the front camera assembly of the electronic device. Continuing with the example of a pole-screen device, the front-facing camera assembly of the pole-screen device is typically located near a corner of the electronic device. Therefore, when the top of the electronic equipment falls downwards, the front camera is too close to the corner of the top of the electronic equipment, so that the front camera can be subjected to larger impact, and the risk that the front camera is damaged is increased. In this embodiment, the protruding portion 21 is disposed in the antenna clearance area of the antenna body 10, so that the protruding portion is closer to the top of the electronic device than the front camera, and when the top of the electronic device falls downward, the protruding portion 21 will contact the ground before the front camera, so as to receive the impact from the ground, and thus a part of the impact is reduced, and the front camera is protected. Meanwhile, the protruding part 21 can be formed by punching of elastic conductive materials such as metal, and therefore the protruding part 21 can generate elastic deformation after contacting the ground, the impulse and energy generated by falling of the electronic equipment are further absorbed, the impact on the ground is further relieved, and the front-facing camera is protected.

The fixing portion 22 is disposed on one side of the protruding portion 21 and is fixedly connected to the protruding portion 21. The fixing portion 22 wraps and fixes the camera component of the electronic device, and a notch 221 is formed on one side of the fixing portion facing the antenna clearance area of the antenna body 10. When a current is induced by the coupling of the protrusion 21 and the antenna body 10, the current flows from the protrusion 21 through the fixing portion 22, flows around the camera module in the fixing portion 22, and then flows to the reference ground 90. Therefore, the path of current flowing through the camera support 20 can be effectively increased, and the inductive reactance of the antenna is further improved, so that the frequency corresponding to the resonance state generated by the coupling of the camera support 20 and the antenna body 10 is the coupling frequency.

The groove portion 23 is provided on the other side of the projecting portion 21 and is fixedly connected to the projecting portion 21. The groove portion 23 is recessed in a direction away from the protruding portion 21 to expand the area of the antenna clearance area of the antenna body 10, so that the area of the antenna that can be accommodated is increased, the signal of the antenna is increased, and the bandwidth of the antenna is expanded. It is to be understood that, in the present embodiment, the antenna body 10 is partially accommodated in the groove portion 23.

It is to be understood that the protruding portion 21, the fixing portion 22 and the groove portion 23 may be made of conductive elastic material such as gold, silver, copper, iron and tin, and may be integrally press-molded.

Referring to fig. 3, the antenna body 10 includes a first branch 11 and a second branch 12, wherein the first branch 11 and the second branch 12 are parallel to each other, and a gap exists between the first branch 11 and the second branch 12 to form a coupling capacitor, so as to generate a resonant state, and the resonant state corresponds to a third frequency.

Meanwhile, the length of the first branch 11 is smaller than that of the second branch 12, the first branch 11 corresponds to a first frequency, and the second branch 12 corresponds to a second frequency. The first frequency is greater than the third frequency, which is greater than the second frequency. The second frequency is less than the first frequency, which is less than the coupling frequency.

For example, in the present embodiment, the value of the first frequency is in the frequency segment 2300 minus 2400MHz, the value of the second frequency is in the frequency segment 900MHz, and the value of the third frequency is in the frequency segment 1710 minus 2170 MHz. Thus, it can cover a wider frequency range, especially the frequency range of all network services provided by the mainstream network operator, such as the frequency range of network services of Global System for Mobile Communications (GSM) network, Code Division Multiple Access (CDMA) network, Wideband Code Division Multiple Access (WCDMA) network, Time Division-Synchronous Code Division multiple Access (TD-SCDMA) network, and Long Term Evolution (Long Term Evolution, LTE) network, so that when the user uses the electronic device, the user will not have signal attenuation or even no signal because the frequency does not cover the frequency of a specific network service.

It is understood that, in the present embodiment, the coupling frequency may further include the first coupling frequency. In a specific embodiment of the present invention, the protruding portion 21 and the second branch 12 are coupled to form a coupling capacitor, so as to generate a resonance state, wherein the resonance state corresponds to the first coupling frequency.

It is to be understood that the first coupling frequency may cover a part of the frequency band in which the coupling frequency is located, or may cover all of the frequency band in which the coupling frequency is located. In one embodiment of the present invention, the value of the first coupling frequency is in the frequency band 2575-.

It is understood that, in the present embodiment, the coupling frequency may further include a third coupling frequency. In a specific embodiment of the present invention, the camera holder 20 is electrically connected to the reference ground 90 to form a parasitic branch, the parasitic branch is coupled to the antenna body 10 to generate a resonant state, and the resonant state corresponds to the third coupling frequency.

It is to be understood that the third coupling frequency may cover a part of the frequency band in which the coupling frequency is located, or may cover all of the frequency band in which the coupling frequency is located. In an embodiment of the present invention, the value of the third coupling frequency is in the frequency band 2635-.

It is to be understood that, as shown in fig. 4, in an embodiment of the present invention, the electronic device further includes: the rear case 30, the main board 40, the antenna dome 50, the ground dome 60, and the flexible circuit board 70.

The flexible circuit board 70 is fixed on the rear case 30, and the antenna body 10 is disposed on the flexible circuit board 70. Antenna signal source 80 and reference ground 90 are all integrated on mainboard 40, and antenna body 10 is located the mainboard 40 and is close to one side of backshell 30, and camera support 20 locates the mainboard 40 and deviates from one side of backshell 30.

The main board 40 is further provided with a feeding end and a first ground feeding end on a side facing the rear case 30, the feeding end is electrically connected to the antenna signal source 80, and the first ground feeding end is electrically connected to the reference ground 90. Thus, the antenna body 10 is electrically connected to the reference ground 90 and the antenna signal source 80 by the plurality of antenna spring pieces 50 contacting the feeding end and the first ground feeding end, respectively.

It will be appreciated that the side of the main board 40 facing away from the rear housing 30 also has a first ground feed, and the second ground feed 42 is electrically connected to a ground reference 90. The camera support 20 is in contact with the second ground feed end 42 through the ground elastic sheet 50, so that the camera support is electrically connected with the reference ground 90. The camera support 20 thus forms parasitic branches as described above.

It is to be understood that, as shown in fig. 5, the electronic device further includes an antenna switch 200 connected in series between the antenna body 10 and the reference ground 90. One end of the antenna switch 200 is electrically connected to the antenna body 10, and the other end is electrically connected to the reference ground 90 through a plurality of parallel lines 100, so that the antenna body 10 is electrically connected to the reference ground 90. In this way, the frequency of each part of the antenna body 10 can be tuned by switching the parallel line 100 through the switch 200, thereby further expanding the bandwidth of the antenna.

In an embodiment of the present invention, the parallel circuit 100 may include a first circuit 110, the first circuit 110 is connected with a first inductor 111 in series, and when the antenna switch 200 is switched on to the first circuit 110, the antenna body 10 corresponds to a fourth frequency, which is smaller than the coupling frequency. For example, in the present embodiment, the value of the coupling frequency is in the frequency segment 2500-. Therefore, in this embodiment, the fourth frequency may be smaller than not only the coupling frequency but also the second frequency, so that the bandwidth of the electronic device in the low frequency band may be extended. The 800MHz frequency band can be used for network services of public mobile communication, Internet of things and the like, has the characteristics of wide frequency spectrum signal coverage and strong penetrating power, is suitable for large-scale network coverage, and can save much deployed hardware cost.

In an embodiment of the present invention, the parallel circuit 100 further includes a second circuit 120, and a second inductor 122 is connected in series to the second circuit 120. The inductive reactance of the second inductor 122 is greater than the inductive reactance of the first inductor 111. For example, in the embodiment, the inductive reactance of the first inductor 111 is 4.3NH, and the inductive reactance of the second inductor 122 is 22 NH.

Frequency formulation by LC resonance circuit

It can be known that the frequency f of the LC resonant circuit₀And is in positive correlation with the inductance L thereof. Therefore, when the antenna switch 200 in the circuit is switched on to the second circuit 120, the antenna body 10 corresponds to a fifth frequency, and the fifth frequency is smaller than the fourth frequency. For example, in the present embodiment, the value of the fourth frequency is in the 800MHz frequency band, and the value of the fifth frequency band is in the 700MHz frequency band. This may further extend the bandwidth of the electronic device in the low frequency band.

From the formula L_sWhen the attenuation L of the electromagnetic wave in the free space is 32.45+20lg (f) +20lg (d), it is known_sOnly related to the frequency f and the propagation distance D, compared with an 800MHz frequency band, the 700MHz frequency band has lower frequency spectrum, so that the coverage is far more, the deep coverage capability is stronger, the method is more suitable for large-area network coverage, and more deployed hardware cost can be saved.

It is understood that, in the above embodiment, the fourth frequency and the fifth frequency may be frequencies corresponding to the second branch 12 of the antenna body 10 after the antenna switch 200 is switched to the corresponding parallel line.

In one embodiment of the present invention, the parallel circuit 100 further comprises a third circuit 130. The impedance, inductive reactance, and capacitive reactance of the third line 300, which directly electrically connects the antenna switch 200 with the reference ground 90, are all close to 0. When the antenna switch 200 is turned on to the third line 130, the antenna body 10 keeps the original frequency unchanged. That is, the protrusion 21 is coupled with the antenna body 10 corresponding to a coupling frequency, the first branch 11 corresponds to a first frequency, the second branch 12 corresponds to a second frequency, and the first branch 11 and the second branch 12 form a coupling capacitor corresponding to a third frequency.

It is understood that in the present embodiment, the values of the coupling frequency are in the frequency segments 2500-.

In an embodiment of the present invention, the parallel circuit 100 further includes a fourth circuit, which is a short circuit.

It will be appreciated that the parallel circuit 100 may comprise one or more of the above-described circuits. The antenna switch 200 may correspondingly select a Single Pole Double Throw (SPDT) switch, a Single Pole triple Throw (SP 3T), a Single Pole quadruplet (SP 4 thread, SP4T), and other Single Pole multiple Throw switches according to the total number of the parallel lines 100, so as to ensure that the antenna switch 200 can connect all the parallel lines 100. In the present embodiment, the parallel line 100 includes a first line 110, a second line 120, a third line 130, and a fourth line. Accordingly, the antenna switch 200 is an SP4T switch.

While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims

1. An electronic device, comprising:

the antenna comprises an antenna body, a reference ground and a control unit, wherein one end of the antenna body is electrically connected with an antenna signal source, and the other end of the antenna body is electrically connected with the reference ground to form a closed loop;

2. The electronic device of claim 1, wherein the antenna body comprises a first branch and a second branch, wherein the first branch has a length less than the second branch, wherein the first branch corresponds to a first frequency and the second branch corresponds to a second frequency, wherein the second frequency is less than the first frequency, and wherein the first frequency is less than the coupling frequency.

3. The electronic device of claim 2, wherein the first branch and the second branch are parallel to each other and a gap exists between the first branch and the second branch to form a coupling capacitor, thereby generating a resonant state, wherein the resonant state corresponds to a third frequency, and wherein the third frequency is greater than the second frequency and less than the first frequency.

4. The electronic device of claim 2, wherein the coupling frequency comprises a first coupling frequency, and wherein the protrusion couples with the second branch to form a coupling capacitance that creates a resonant state, the resonant state corresponding to the first coupling frequency.

5. The electronic device of claim 1, wherein the coupling frequency comprises a second coupling frequency, and wherein the protrusion couples with the antenna body to form a coupling capacitance that generates a resonant state, the resonant state corresponding to the second coupling frequency.

6. The electronic device of claim 1, wherein the coupling frequency comprises a third coupling frequency, wherein the camera mount is electrically connected to the reference ground to form a parasitic stub, and wherein the parasitic stub is coupled to the antenna body to generate a resonant state, wherein the resonant state corresponds to the third coupling frequency.

7. The electronic device of claim 6, further comprising a ground spring that electrically connects the reference ground with the camera mount.

8. The electronic device of claim 7, further comprising a main board and a plurality of antenna clips, wherein the camera bracket is disposed on one side of the main board, the antenna body is disposed on the other side of the main board, the antenna signal source and the reference ground are integrated on the main board, and the antenna body is electrically connected to the reference ground and the antenna signal source through the plurality of antenna clips.

9. The electronic device according to claim 1, wherein the camera holder further includes a fixing portion disposed on one side of the protruding portion and fixedly connected to the protruding portion, the fixing portion wraps and fixes the camera module of the electronic device, and a notch is formed on one side of the fixing portion facing the antenna clearance area of the antenna body.

10. The electronic device of claim 9, wherein the camera holder further comprises a recessed portion configured to receive the antenna body.

11. The electronic device of claim 1, further comprising: and the antenna switch is connected between the antenna body and the reference ground in series, one end of the antenna switch is electrically connected with the antenna body, and the other end of the antenna switch is electrically connected with the reference ground through a plurality of parallel circuits, so that the antenna body is electrically connected with the reference ground.

12. The electronic device of claim 11, wherein the parallel line comprises a first line, a first inductor is connected in series with the first line, and when the antenna switch is switched on to the first line, the antenna body corresponds to a fourth frequency, and the fourth frequency is less than the coupling frequency.

13. The electronic device of claim 12, wherein the parallel circuit further comprises a second circuit, a second inductor is connected in series to the second circuit, an inductive reactance of the second inductor is greater than an inductive reactance of the first inductor, when the antenna switch is switched on to the second circuit, the antenna body corresponds to a fifth frequency, and the fifth frequency is less than the fourth frequency.

14. The electronic device of claim 1, further comprising: the antenna comprises a rear shell and a flexible circuit board, wherein the flexible circuit board is fixed on the rear shell, and the antenna body is arranged on the flexible circuit board.