CN115000693A

CN115000693A - Electronic device

Info

Publication number: CN115000693A
Application number: CN202210651998.6A
Authority: CN
Inventors: 文思超
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-09-02

Abstract

The present application relates to an electronic device. In the electronic equipment, the main board is positioned on one side of the rear cover and is relatively fixed with the rear cover; the radio frequency module is arranged on the mainboard; the decoration component comprises a first decoration piece and a second decoration piece, and the first decoration piece and the second decoration piece are both arranged on the rear cover; the first decorating part is provided with a metal radiating body which is electrically connected with the radio frequency module so as to radiate radio frequency signals; the second decorating part is provided with a metal reflector which is electrically grounded and reflects the radio-frequency signal radiated by the metal reflector. The metal radiator in the first decorating part is electrically connected with the radio frequency module and can radiate radio frequency signals, so that the first decorating part with the decorating function is reused and has the function of radiating the radio frequency signals. The metal reflector in the second decorating part reflects the radio-frequency signals radiated by the metal radiator, the concentration degree of the radio-frequency signals is improved, the radio-frequency signals are prevented from being randomly conducted in the electronic equipment and being interfered, and the communication performance is improved.

Description

Electronic device

Technical Field

The present application relates to the field of communication devices, and more particularly, to an electronic device.

Background

At present, most of mobile phones use a metal frame as a radiator of an antenna, or the antenna is printed on a Flexible Printed Circuit (FPC) and placed inside a body, and a part of the mobile phones print the antenna on a housing through a Laser Direct Structuring (LDS) technique. However, since the mobile phone also has some metal parts that are not used as the antenna, the metal parts may generate some noise waves, which may interfere with the radiation of the antenna itself, and degrade the communication performance of the electronic device.

Disclosure of Invention

The embodiment of the application provides electronic equipment with better communication performance.

An electronic device, comprising:

a rear cover;

the main board is positioned on one side of the rear cover and is relatively fixed with the rear cover;

the radio frequency module is arranged on the mainboard; and

the decoration assembly comprises a first decoration piece and a second decoration piece, and the first decoration piece and the second decoration piece are arranged on the rear cover; the first decoration part is provided with a metal radiating body which is electrically connected with the radio frequency module so as to radiate radio frequency signals; the second decorating part is provided with a metal reflector, the metal reflector is electrically grounded, and the metal reflector reflects the radio-frequency signals radiated by the metal reflector.

In the electronic device, the metal radiator in the first decoration is electrically connected to the radio frequency module, so that the radio frequency module feeds power to the metal radiator, and the metal radiator radiates a radio frequency signal. Therefore, the first decorating part has the function of radiating radio-frequency signals while playing a decorating role, and a radiating body of an antenna does not need to be additionally arranged, so that stacking of parts is reduced, the structural complexity of the electronic device is reduced, and the internal space of the electronic device is saved. The second decoration also can play the decoration effect, and simultaneously, the metal reflector electrical property ground connection in the second decoration to can reflect the radio frequency signal that the metal radiator radiated, under the reflection of metal reflector, the radio frequency signal's that the metal radiator radiated concentration degree can promote, so can prevent that radio frequency signal from transmitting and receiving the interference at will in electronic equipment inside, make communication performance promote.

In one embodiment, the electronic device has a top side and a bottom side opposite to the top side along the length direction of the electronic device; the first decorative piece and the second decorative piece are both close to the top side edge, and the first decorative piece is located between the second decorative piece and the top side edge.

In one embodiment, the projection of the metal radiator along the length direction all falls within the range of the metal reflector.

In one embodiment, the first decoration piece comprises a first body and a first decoration coating, the first decoration coating is coated on the surface of the first body, and the first body forms the metal radiator; and/or the second decorating part comprises a second body and a second decorating coating, the second decorating coating is coated on the surface of the second body, and the second body forms the metal reflector.

In one embodiment, the first decoration piece and the second decoration piece are both located on the same side of the main board and are both spaced from the main board along the thickness direction of the electronic device.

In one embodiment, the electronic device includes a first metal part, one end of which is electrically connected to the metal radiator, and the other end of which is electrically connected to the radio frequency module; the first metal piece is supported between the first decorating piece and the radio frequency module;

and/or the electronic equipment comprises a second metal piece, one end of the second metal piece is electrically connected with the metal reflector, and the other end of the second metal piece is electrically grounded; the second metal piece is supported between the second decorating piece and the main board.

In one embodiment, the first decoration piece and the second decoration piece are both protruded from one side of the rear cover, which is far away from the main board.

In one embodiment, the electronic device includes a first transparent plate, a second transparent plate, and a camera module; the first light-transmitting plate is arranged on the first decorating part, the first decorating part surrounds the first light-transmitting plate, the second light-transmitting plate is arranged on the second decorating part, and the second decorating part surrounds the second light-transmitting plate; the camera module with mainboard fixed connection, just first light-passing board with the second light-passing board all corresponds the camera module.

In one embodiment, the metal radiator is used for radiating a single-band radio frequency signal or a multi-band radio frequency signal; the radio frequency signal of the single frequency band is a GPS frequency band signal.

In one embodiment, the radio frequency module includes a feed source and a matching circuit, where the matching circuit is connected between the feed source and the metal radiator, and the matching circuit is configured to tune a resonant frequency, so that the metal radiator radiates a multi-band radio frequency signal.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

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

FIG. 2 is a side view of the electronic device of FIG. 1;

FIG. 3 is a schematic diagram illustrating the positions of the main board and the decoration device inside the electronic device shown in FIG. 1;

FIG. 4 is a side view of the structure shown in FIG. 3;

fig. 5 is a view angle effect simulation diagram of the rf signal radiated by the metal radiator in the first decoration shown in fig. 1;

FIG. 6 is a simulation of the effect of another view angle of the RF signal radiated by the metal radiator in the first decorative element shown in FIG. 1;

fig. 7 is a simulation of the effect of another view angle of the radio frequency signal radiated by the metal radiator in the first decoration shown in fig. 1;

fig. 8 is a view of an effect simulation diagram of a view angle of the radio frequency signal radiated by the metal radiator in the first decoration element after the second decoration element is omitted in the electronic device shown in fig. 1;

fig. 9 is a diagram illustrating an effect simulation of the electronic device shown in fig. 1 from another view angle of the radio frequency signal radiated by the metal radiator after the second decorative element is omitted;

fig. 10 is a simulation diagram of an effect of another view angle of the radio frequency signal radiated by the metal radiator in the first decoration element after the second decoration element is omitted in the electronic device shown in fig. 1;

fig. 11 is a schematic structural diagram of an electronic device according to another embodiment;

fig. 12 is a graph illustrating a reflection coefficient when a resonant frequency band of a metal radiator in the first decorative member of fig. 1 is a single frequency band;

fig. 13 is a graph illustrating radiation efficiency when the resonant frequency band of the metal radiator in the first decorative member shown in fig. 1 is a single frequency band;

FIG. 14 is a graph of the radiation power of the metal radiator radiating RF signals into the upper half space versus the power radiated into the full space in the first trim part of FIG. 1;

fig. 15 is a graph illustrating a reflection coefficient when a resonant frequency band of a metal radiator in the first deco of fig. 1 is a dual frequency band;

fig. 16 is a graph showing radiation efficiency when the resonant frequency band of the metal radiator in the first decorative member of fig. 1 is a dual frequency band.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

As used herein, "electronic device" means a device capable of receiving and/or transmitting communication signals including, but not limited to, a device connected via any one or more of the following connections:

(1) via wireline connections, such as via Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital cable, direct cable connections;

(2) via a Wireless interface such as a cellular Network, a Wireless Local Area Network (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter.

Electronic devices arranged to communicate over a wireless interface may be referred to as "mobile terminals". Examples of mobile terminals include, but are not limited to, the following electronic devices:

(1) satellite or cellular telephones;

(2) personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities;

(3) radiotelephones, pagers, internet/intranet access, Web browsers, notebooks, calendars, Personal Digital Assistants (PDAs) equipped with Global Positioning System (GPS) receivers;

(4) conventional laptop and/or palmtop receivers;

(5) conventional laptop and/or palmtop radiotelephone transceivers, and the like.

Referring to FIG. 1, an electronic device 10 is shown according to an embodiment of the present application. In this application, the electronic device 10 may be a device having both a photographing function and a wireless transceiving function, and may be, but not limited to, a handheld or wearable device. For example, the electronic device 10 may be a mobile phone, a tablet computer, a notebook computer, or the like.

The electronic apparatus 10 can acquire surrounding environment or personal image information through a photographing function. The electronic device 10 may be communicatively connected to other devices through a wireless transceiving function, and the other devices may be network devices or other electronic devices 10.

Referring to fig. 1 to 4, in the present application, the electronic device 10 includes a rear cover 11, a main board 13, a radio frequency module 15, and a decoration assembly 17. The main plate 13 is located on one side of the rear cover 11 and fixed opposite to the rear cover 11. The rf module 15 is disposed on the motherboard 13. The decoration assembly 17 includes a first decoration 171 and a second decoration 172, and both the first decoration 171 and the second decoration 172 are connected to the rear cover 11. The first decoration member 171 is formed with a metal radiator electrically connected to the rf module 15 to radiate an rf signal. The second decoration element 172 is formed with a metal reflector, which is electrically grounded and reflects the rf signal radiated by the metal reflector.

It is understood that the rear cover 11 serves as a protection structure of the electronic device 10, and can protect the internal components of the electronic device 10. The main board 13 and the rf module 15 are both located on a side of the rear cover 11 facing the display 21 of the electronic device 10, and can serve as a protection for the rear cover 11 as an internal component of the electronic device 10.

In the present application, the electronic device 10 includes a camera module 19, and the camera module 19 can be used for image shooting. The rear cover 11 is provided with a light-transmitting structure through which light can be transmitted, and external light can be incident on the camera module 19 through the light-transmitting structure. The first decoration member 171 and the second decoration member 172 both have a decoration effect at the light-transmitting structure, so as to improve the appearance effect of the electronic device 10. It can be understood that the first decoration member 171 and the second decoration member 172 are both decoration structures of the camera module 19. In other embodiments, the first decoration member 171 and the second decoration member 172 are decoration structures around the light emitting holes of the flashlight and the flashlight, respectively.

It is understood that the metal radiator in the first decoration member 171 may be electrically connected to the rf module 15, so that the rf module 15 feeds power to the metal radiator, and the metal radiator radiates rf signals. Thus, the rf module 15 and the metal radiator form an antenna of the electronic device 10, and the antenna may be any one or more combinations of a GPS antenna, a 5G antenna, a WIFI antenna, and a bluetooth antenna. Therefore, the first decoration member 171 can have a function of radiating radio frequency signals while playing a decoration role, so that an additional radiator of an antenna is not needed, and thus stacking of parts can be reduced, the structural complexity of the electronic device 10 can be reduced, and the internal space of the electronic device 10 can be saved.

It can be understood that, besides the decoration effect, the metal reflector in the second decoration 172 is electrically grounded and can reflect the radio frequency signal radiated by the metal radiator, and under the reflection effect of the metal reflector, the concentration degree of the radio frequency signal radiated by the metal radiator is improved, so that the radio frequency signal can be prevented from being randomly conducted and interfered in the electronic device 10, and the communication performance is improved.

It is understood that the metal radiator is made of metal, so that electrical conduction can be achieved after the connection with the rf module 15. The metal reflector is made of metal material, so that the metal reflector can be electrically grounded.

It is understood that the metal reflector may be electrically connected to the ground layer of the motherboard 13 to achieve electrical grounding, or may be electrically connected to the ground lines of other electronic devices in the electronic apparatus to achieve electrical grounding.

For the first decoration 171, it includes a first body (not shown) and a first decoration coating (not labeled), the first decoration coating is coated on the surface of the first body, and the first body forms a metal radiator. It is understood that the decoration material may be coated on only a portion of the outer surface of the first body to obtain the first decoration coating layer, and the first decoration coating layer may be obtained after all the outer surface of the first body is coated with the decoration material. The first decorative coating may present a shiny mirror effect or may also present a specific pattern and serve as a decoration by being exposed to the outside. In this application, first body is ring structure, and the whole of first body all is the metal material to can realize the electric conduction with radio frequency module, thereby the whole constitution metal irradiator of first body radiates radio frequency signal with the biggest volume.

In other embodiments, the first body may be further divided into a first section and a second section connected to the first section, the first section is made of plastic material, the second section is made of metal material, and the second section is electrically connected to the rf module to form a metal radiator for radiating the rf signal. Or, the first section and the second section are both made of metal materials, and the first section and the second section are connected together through an insulating material, so that only the second section is electrically connected with the radio frequency module to form a metal radiator for radiating radio frequency signals.

For the second decoration 172, it includes a second body (not shown) and a second decoration coating (not labeled), the second decoration coating is applied on the surface of the second body, and the second body forms a metal reflector. The decorative material may be coated only on a portion of the outer surface of the second body to obtain the second decorative coating layer, or the second decorative coating layer may be coated on the entire outer surface of the second body. The second decorative coating may present a shiny mirror effect or may also present a specific pattern and serve as a decoration by being exposed to the outside. In the present application, the second body is a circular ring structure, and all of the second body are made of metal and can be electrically grounded, so that all of the second body constitutes a metal reflector to reflect the radio frequency signal with the largest volume.

In other embodiments, the second body may be further divided into a third section and a fourth section connected to the third section, the third section is made of plastic material, the fourth section is made of metal material, and the fourth section is electrically grounded to reflect the rf signal. Or, the third section and the fourth section are both made of metal, and the third section and the fourth section are connected together through an insulating material, so that only the fourth section is electrically grounded to form a metal reflector to reflect the radio-frequency signal.

In other embodiments, the first and second decorative coatings may also be omitted.

The electronic device 10 is set to have a longitudinal direction, a width direction, and a thickness direction, and as shown in fig. 1 to 4, the Y axis is the longitudinal direction, the X axis is the width direction, and the Z axis is the thickness direction. In the thickness direction, the electronic apparatus 10 has a front side and a rear side opposite to the front side, the display screen 21 defines the front side, and the rear cover 11 defines the rear side. Along the length direction, the electronic device 10 has a top side 23 and a bottom side 25, and when the electronic device is held vertically, the top side 23 is located above the electronic device, and the bottom side 25 is located below the electronic device, or the bottom side 25 is located at a power interface or an audio interface of the electronic device 10, and the top side 23 is opposite to the bottom side 25. The electronic apparatus 10 has a left side 27 and a right side 29 opposite to the left side 27 in the width direction, the left side 27 is located on the left side of the human body and the right side 29 is located on the right side of the human body when the operator faces the display screen 21, and the power key and the volume adjustment key of the electronic apparatus 10 are located on the left side 27 or the right side 29.

In the present application, the first decoration 171 and the second decoration 172 are both close to the top side 23, and the first decoration 171 is located between the second decoration 172 and the top side 23.

The proximity of the first trim component 171 to the top side edge 23 can be understood as the distance from the first trim component 171 to the bottom side edge 25 is greater than the distance from the first trim component 171 to the top side edge 23. Similarly, the proximity of the second trim piece 172 to the top side edge 23 is understood to mean that the distance from the second trim piece 172 to the bottom side edge 25 is greater than the distance from the second trim piece 172 to the top side edge 23. It will be appreciated that a common application scenario for the electronic device 10 is vertical hand holding, with the top side 23 above and the bottom side 25 below, and that by bringing the first trim part 171 closer to the top side 23, it may be helpful to facilitate the metal radiator radiating signals towards the sky, so that the upper hemisphere of the antenna radiation pattern has a higher radiation fraction to facilitate searching and positioning. The upper hemisphere is understood to be the half of the electronic device near the top side.

Since the first decoration member 171 is located between the second decoration member 172 and the top side 23, the metal reflector blocks the rf signal from being conducted toward the side of the bottom side 25, and concentrates the rf signal radiated from the metal radiator to the region between the second decoration member 172 and the top side 23. Further, in the case of vertical holding, since the second decorative member 172 is close to the top side 23, the signal energy radiated by the metal radiator is emitted toward the upper hemispherical space by the reflection of the metal reflector, the radio frequency signal radiated by the metal radiator will be concentrated on the half area of the electronic device 10 close to the top side 23 (as shown in fig. 5 and 6), and meanwhile, since the first decorative member 171 is located at the rear side of the electronic device 10 in the thickness direction, the radio frequency signal radiated by the metal reflector will be more biased to be radiated toward the side away from the display screen 21 (as shown in fig. 6 and 7). Therefore, the arrangement positions of the first decoration part 171 and the second decoration part 172 are reasonably designed, so that the radiation direction of the antenna can be improved, and the radiation efficiency of the upper hemisphere can be improved.

Specifically, in the present application, the first decoration 171 and the second decoration 172 are both disposed near the right side edge 29. In other embodiments, the first decoration 171 and the second decoration 172 may be both located at the middle position of the electronic device 10 in the width direction.

It can be understood that, as shown in fig. 8 to 10, if the second decorative member 172 is not provided, the radio frequency signal radiated by the metal radiator will be conducted toward the side of the bottom side 25, so that the radio frequency signal will not be concentrated on the upper hemisphere of the electronic device 10, so that the radiation direction of the antenna is changed, and the radiation efficiency of the upper hemisphere cannot be improved, and the radiation ratio of the upper hemisphere is only 35.7%.

Referring again to fig. 1 to 4, in the present application, the projection of the metal radiator along the length direction entirely falls within the range of the metal reflector. It is understood that, as a plane perpendicular to the length direction, the metal radiator and the metal reflector both have projections on the plane, and the projection of the metal radiator and the projection of the metal reflector may completely coincide, or the projection of the metal radiator may completely fall within the projection of the metal reflector. The arrangement can enable the metal radiator to have a good reflection effect on the radio-frequency signals radiated by the metal radiator.

Specifically, the first decoration member 171 and the second decoration member 172 are both ring-shaped, and both shapes and volumes thereof are consistent, so as to achieve a better appearance decoration effect. In other embodiments, the shapes and volumes of the first decoration 171 and the second decoration 172 may be different, but it is only necessary to ensure that the projection of the metal radiator along the length direction completely falls within the range of the metal reflector, so that the metal reflector can perform a better reflection function on the radio frequency signal radiated by the metal radiator.

In this application, the first decoration 171 and the second decoration 172 are both located on the same side of the main board 13, and the first decoration 171 and the second decoration 172 are both spaced apart from the main board 13 along the thickness direction of the electronic device 10. By arranging the first decoration member 171 and the main board 13 at an interval, the possibility of interference of other metal devices on the main board 13 to the signal radiated by the metal radiator can be reduced, and the radiation efficiency of the radio frequency signal can be improved. In addition, the second decorative part 172 is spaced from the main board 13, so that the metal reflector can meet the requirement of reflecting radio frequency signals, and can avoid occupying more space inside the electronic device 10.

In this application, the electronic device 10 includes a first metal member 31, one end of the first metal member 31 is electrically connected to the metal radiator, and the other end of the first metal member 31 is electrically connected to the rf module 15, and the first metal member 31 is supported between the first decoration member 171 and the rf module 15. By providing the first metal member 31, the metal radiator of the first decoration 171 can be electrically connected to the rf module 15 when the first decoration 171 is spaced apart from the rf module 15. In addition, the first metal part 31 can also support the first decoration 171, so as to ensure that a stable interval is maintained between the first decoration 171 and the radio frequency module 15. In the present application, the first metal fitting 31 is a columnar structure made of a metal material. In other embodiments, the first metal member 31 may also extend along the circumferential direction of the annular first decoration member 171, so as to have an arc-shaped plate-shaped structure or an annular barrel-shaped structure. It is understood that in other embodiments, if the rear cover 11 can stably support the first decoration member 171, the supporting function of the first metal member 31 may be omitted, and in this case, the first metal member 31 only serves as an electrical connection line to realize an electrical connection.

In the present application, the electronic device 10 includes a second metal part 33, one end of the second metal part 33 is electrically connected to the metal reflector, and the other end is electrically grounded; the second metal member 33 is supported between the second decoration member 172 and the main board 13. By providing the second metal member 33, the metal reflector of the second garnish 172 can be grounded. In addition, the second metal part 33 can also support the second decoration 172, so that a stable interval is maintained between the second decoration 172 and the main board 13, and the second metal part 33 and the rf module 15 are arranged at an interval. In the present application, the second metal fitting 33 is a columnar structure made of a metal. In other embodiments, the second metal member 33 may also extend along the circumferential direction of the annular second decoration member 172, so as to have an arc-shaped plate-shaped structure or an annular barrel-shaped structure. It is understood that in other embodiments, if the rear cover 11 can stably support the second decorative member 172, the supporting function of the second metal member 33 can be omitted, and in this case, the second metal member 33 only serves as an electrical connection line to realize an electrical connection.

In this application, the first decoration member 171 and the second decoration member 172 both protrude from the side of the rear cover 11 away from the main board 13, so that the metal radiator has a larger clearance, the possibility of interference on the rf signal is reduced, and the radiation efficiency of the rf signal is improved. Moreover, the protruding portions of the first decoration member 171 and the second decoration member 172 from the rear cover 11 are substantially flush, so that the electronic device 10 can have a better appearance.

With reference to fig. 1 to 4, the electronic device 10 further includes a protective cover 35, the rear cover 11 has a through hole (not shown), and the protective cover 35 is mounted in the through hole and protrudes from the rear cover 11. The protective cover 35 has a first mounting hole (not shown) and a second mounting hole (not shown), the first decoration 171 is mounted in the first mounting hole, and the second decoration 172 is mounted in the second mounting hole. It can be understood that the protection cover plate 35 is arranged on the rear cover 11, and the protection cover plate 35 protrudes out of the rear cover 11, so that after the first decoration member 171 and the second decoration member 172 are installed on the protection cover plate 35, the first decoration member 171 and the second decoration member 172 can protrude out of the rear cover 11, and thus, the metal radiator has a large clearance, and the first decoration member 171 and the second decoration member 172 can be matched together to present a good decoration effect, and the metal reflector can also play a good reflection effect.

It can be understood that after the first decoration 171 is installed in the first installation hole and the second decoration 172 is installed in the second installation hole, the first decoration 171 and the second decoration 172 may both protrude from the protective cover 35, and the first decoration 171 and the second decoration 172 may both be flush with the surface of the protective cover 35 away from the main board 13.

It can be understood that the protection cover plate 35 is offset to the side away from the main board 13 and protrudes out of the rear cover 11, which can help to enlarge the internal space of the electronic device 10 to provide a sufficient installation space for the camera module 19, or it can be understood that the installation of the camera module 19 is offset to the side away from the display screen 21 to provide a sufficient installation space for the installation of other devices inside the electronic device 10, so as to improve the planning degree of the internal space of the electronic device 10.

In another embodiment, the protective cover 35 may be omitted, and in this case, the rear cover 11 is directly provided with a first mounting hole and a second mounting hole, the first garnish 171 is mounted to the first mounting hole, and the second garnish 172 is mounted to the second mounting hole. It can be understood that the first decoration member 171 and the second decoration member 172 are directly mounted on the rear cover 11 and protrude from the surface of the rear cover 11 facing away from the main board 13.

In this application, camera module 19 and mainboard 13 fixed connection, through mainboard 13 with the shooting operation to camera module 19 control, and the image that camera module 19 was shot can be handled at mainboard 13. In this application, the electronic device 10 includes a first transparent plate 37 and a second transparent plate 38, the first transparent plate 37 is installed on the first decoration 171, the first decoration 171 surrounds the first transparent plate 37, the second transparent plate 38 is installed on the second decoration 172, the second decoration 172 surrounds the second transparent plate 38, and the first transparent plate 37 and the second transparent plate 38 all correspond to the camera module 19.

It can be understood that the external light can penetrate through the first transparent plate 37 and the second transparent plate 38, thereby the incident is to the camera module 19 corresponding to the two, and the first decoration member 171 and the second decoration member 172 respectively provide the installation position for the first transparent plate 37 and the second transparent plate 38, and respectively play a decoration role around the first transparent plate 37 and the second transparent plate 38, the inner wall surface of the first transparent plate 37 and the first installation hole can also be improved, the installation sealing degree between the inner wall surface of the second transparent plate 38 and the second installation hole, play waterproof and dustproof roles, and play a protection role for the camera module 19 inside the electronic device 10.

Further, in this application, the first decoration member 171 and the second decoration member 172 are both in the shape of a ring with an L-shaped cross section, so that step grooves are formed in the first decoration member 171 and the second decoration member 172, thereby providing a space for installing the first transparent plate 37 and the second transparent plate 38.

As shown in fig. 1 to 4, there are two first decoration pieces 171 and one second decoration piece 172, so that there are two camera modules 19 corresponding to the first transparent plate 37 and the second transparent plate 38, and the two camera modules 19 cooperate together to form a double-shot camera.

As shown in fig. 11, in another embodiment, there are two first decoration members 171 and one second decoration member 172, so that there are three camera modules 19 corresponding to the two first transparent plates 37 and the one second transparent plate 38, and the three cameras cooperate together to form three cameras. It should be noted that, in the foregoing case, the metal radiators in the two first decos 171 may be electrically connected together to receive the feed of the rf module 15, thereby radiating the rf signal.

In some embodiments, the number of the metal radiators may be increased by increasing the number of the first deco 171 so that two metal radiators support radiation of two radio frequency signals, thereby improving the communication performance of the electronic device. It should be noted that the two rf signals may be the same or different. If the excitation signals fed into the two metal radiators are different, the corresponding radio frequency signals are different. It should be noted that in other embodiments, there may be one first decoration 171 and two second decorations 172, and the two second decorations 172 may reflect the radio frequency signal better.

In the present application, the metal radiator is used for radiating a single-band radio frequency signal. It is understood that the radio frequency module 15 includes a feed source (not shown) for providing a driving signal, and the feed source feeds the driving signal to the metal radiator, so that the metal radiator radiates a radio frequency signal of a specific frequency band.

Further, the radio frequency signal of the single frequency band is a GPS frequency band signal. The frequency band of the radio frequency signal radiated by the metal radiator can be 1.57542GHz +/-1.023 MHz, and the communication requirement of the L1 frequency band of the GPS antenna can be met. As shown in fig. 12, which is a reflection coefficient curve of an antenna, it can be seen that in the L1 frequency band, the return loss of the radio frequency signal radiated by the metal radiator is small, and the operating bandwidth is wide. As shown in fig. 13, which is a radiation total efficiency curve of the antenna, it can be seen that there is a high radiation efficiency in the L1 frequency band. As shown in fig. 14, the line at the top in the figure is the power radiated by the antenna to the full space, and the line at the bottom is the power radiated to the upper hemisphere, and it can be seen that the radiation duty ratio of the hemisphere in the L1 frequency band can reach: 0.30405/0.48206 is 62.5%.

In this application, the metal radiator is also used to radiate radio frequency signals in multiple bands. Specifically, the rf module 15 includes a feed source (not shown) and a matching circuit (not shown), the matching circuit is connected between the feed source and the metal radiator, and the matching circuit is used for tuning a resonant frequency so that the metal radiator radiates rf signals in multiple bands. As shown in fig. 15, which is a reflection coefficient curve of the antenna, it can be seen that the metal radiator can radiate radio frequency signals of two frequency bands. From the radiation efficiency curve of the antenna of fig. 16, it can be seen that the metal radiator can achieve higher radiation efficiency for both frequency bands shown in fig. 15. It should be noted that the matching circuit may be composed of integrated components such as a capacitor, an inductor, and a resistor, and may also include a radio frequency switch, and the form of the matching circuit is not limited herein.

In other embodiments, the number of the feed sources may be multiple, the frequency bands of the excitation signals of the feed sources may be the same or different, and the metal radiator may radiate a multi-band radio frequency signal by respectively conducting the feed sources with the metal radiator.

Or in other embodiments, the number of the feed sources and the number of the metal radiators are multiple, the multiple feed sources are connected with the multiple metal radiators in a one-to-one correspondence manner, the frequency bands of the excitation signals of the feed sources can be the same or different, and the radiation can be performed by controlling the metal radiators respectively, so as to achieve the purpose of performing radiation on radio frequency signals of multiple frequency bands.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An electronic device, comprising:

a rear cover;

the radio frequency module is arranged on the mainboard; and

the decoration assembly comprises a first decoration piece and a second decoration piece, and the first decoration piece and the second decoration piece are both arranged on the rear cover; the first decoration part is provided with a metal radiating body which is electrically connected with the radio frequency module so as to radiate radio frequency signals; the second decorating part is provided with a metal reflector, the metal reflector is electrically grounded, and the metal reflector reflects the radio-frequency signals radiated by the metal reflector.

2. The electronic device of claim 1, wherein along a length of the electronic device, the electronic device has a top side and a bottom side opposite the top side; the first decorative piece and the second decorative piece are both close to the top side edge, and the first decorative piece is located between the second decorative piece and the top side edge.

3. The electronic device of claim 2, wherein a projection of the metal radiator along the length direction falls within a range of the metal reflector.

4. The electronic device of claim 1, wherein the first decorative element comprises a first body and a first decorative coating, the first decorative coating being applied to a surface of the first body, the first body forming the metal radiator; and/or the second decorating part comprises a second body and a second decorating coating, the second decorating coating is coated on the surface of the second body, and the second body forms the metal reflector.

5. The electronic device of claim 1, wherein the first decorative piece and the second decorative piece are both located on the same side of the motherboard and are both spaced apart from the motherboard along a thickness direction of the electronic device.

6. The electronic device according to claim 5, wherein the electronic device comprises a first metal part, one end of the first metal part is electrically connected to the metal radiator, and the other end of the first metal part is electrically connected to the radio frequency module; the first metal piece is supported between the first decorating piece and the radio frequency module;

7. The electronic device according to claim 1, wherein the first decoration piece and the second decoration piece are both protruded from a side of the rear cover facing away from the main board.

8. The electronic device of claim 1, wherein the electronic device comprises a first light-transmitting panel, a second light-transmitting panel, and a camera module; the first light-transmitting plate is arranged on the first decorating part, the first decorating part surrounds the first light-transmitting plate, the second light-transmitting plate is arranged on the second decorating part, and the second decorating part surrounds the second light-transmitting plate; the camera module is fixedly connected with the mainboard, and the first light-transmitting plate and the second light-transmitting plate are both corresponding to the camera module.

9. The electronic device of claim 1, wherein the metal radiator is configured to radiate a single band radio frequency signal or multiple bands of radio frequency signals; the radio frequency signal of the single frequency band is a GPS frequency band signal.

10. The electronic device of claim 9, wherein the radio frequency module comprises a feed source and a matching circuit, wherein the matching circuit is connected between the feed source and the metal radiator, and wherein the matching circuit is configured to tune a resonant frequency so that the metal radiator radiates a plurality of bands of radio frequency signals.