CN210576413U

CN210576413U - Electronic device

Info

Publication number: CN210576413U
Application number: CN201921974940.5U
Authority: CN
Inventors: 彭致勇; 向元彬; 管彬
Original assignee: Realme Chongqing Mobile Communications Co Ltd
Current assignee: Realme Chongqing Mobile Communications Co Ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-05-19
Anticipated expiration: 2029-11-15

Abstract

The utility model provides an electronic equipment. An electronic device includes a non-metallic back cover, an antenna device. The antenna device is arranged in the nonmetal rear cover and arranged at the bottom of the nonmetal rear cover. The antenna device comprises a first antenna for receiving and transmitting antenna signals of a first frequency band and a second antenna for receiving and transmitting antenna signals of a second frequency band; the second antenna comprises an inner side antenna and an outer side antenna, the inner side antenna is arranged on the inner side surface of the non-metal rear cover in a wiring mode, the outer side antenna is arranged on the outer side surface of the non-metal rear cover in a wiring mode, and the inner side antenna is electrically connected with the outer side antenna. In the electronic equipment, the available clearance area of the antenna device is increased as much as possible in a limited space, and meanwhile, the antenna device can realize wide-frequency coverage.

Description

Electronic device

Technical Field

The utility model relates to an electrical apparatus field, in particular to electronic equipment.

Background

At present, with the gradual popularization of the 5G technology, all manufacturers continuously release their own 5G products. The antennas of 5G products generally include 4G antennas, GPS, wifi antennas, and 5G antennas. Therefore, the coexistence of the 5G antenna and the 4G antenna, the GPS and the wifi antenna in the 5G product inevitably causes the problem of insufficient antenna clearance. If the clearance of the 5G antenna is not enough, the antenna signal problem of the 5G product is influenced.

SUMMERY OF THE UTILITY MODEL

The purpose of this disclosure is to provide an antenna arrangement scheme that can ensure that antenna headroom is sufficient to ensure antenna signal quality of electronic devices.

An electronic device, comprising:

a non-metallic rear cover;

the antenna device is arranged in the non-metal rear cover and at the bottom of the non-metal rear cover, and comprises a first antenna and a second antenna, wherein the first antenna is used for receiving and transmitting antenna signals of a first frequency band, and the second antenna is used for receiving and transmitting antenna signals of a second frequency band; the second antenna comprises an inner antenna and an outer antenna, the inner antenna is arranged on the inner side surface of the non-metal rear cover in a wiring mode, the outer antenna is arranged on the outer side surface of the non-metal rear cover in a wiring mode, and the inner antenna is electrically connected with the outer antenna.

In the electronic device, the first antenna may operate in a state of covering a first frequency band, and the second antenna may operate in a state of covering a second frequency band. Thus, the first antenna may be a 4G antenna and the second antenna may be a 5G antenna. Considering the structural strength of the electronic equipment and the clearance balance of the antenna device, the second antenna is arranged by simultaneously routing the inner side and the outer wall of the non-metal rear cover, so that an inner side antenna and an outer side antenna for covering 5G frequency are formed, and the routing area of the second antenna is reduced. In the electronic equipment, the available headroom area of the antenna device is increased as much as possible in the limited space at the bottom of the electronic equipment, and meanwhile, the antenna device can realize broadband coverage and realize the coverage of 4G frequency bands and 5G frequency bands.

Drawings

FIG. 1 is a schematic structural diagram of an electronic device according to an embodiment;

FIG. 2 is a perspective view of a non-metallic back cover of the electronic device shown in FIG. 1;

fig. 3 is a perspective view of another angle of the non-metallic back cover according to fig. 2.

The reference numerals are explained below:

11. a non-metallic rear cover; 13. a cover plate; 131. a hollow-out section; 132. a metal via; 14. a frame; 141. a first side frame; 142. a second side frame; 143. a third side frame; 144. a fourth side frame;

12. an antenna device; 121. a first antenna; 122. a second antenna; 1221. an inner antenna; 1222. an outer antenna; 123. a third antenna; 124. a fourth antenna; 1241. a connecting portion;

15. a power amplifier module; 16. a USB interface; 17. an earphone seat; 19. a battery.

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 disclosure 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 disclosure, and not to imply that every embodiment of the disclosure 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.

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more example embodiments. In the following description, numerous specific details are provided to give a thorough understanding of example embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, steps, and so forth. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

The preferred embodiments of the present invention will be further described in detail with reference to the accompanying drawings.

The present disclosure provides an electronic device. The electronic equipment can be intelligent mobile terminal, portable power source, electric automobile, notebook computer, unmanned aerial vehicle, electronic book, electron cigarette, intelligent wearing equipment, robot of sweeping the floor, bluetooth speaker, electric toothbrush and electronic equipment such as chargeable wireless mouse. The specific type of the electronic device is not limited herein as long as the electronic device needs to transmit and receive signals using an antenna. For convenience of description, the device to be charged is described by taking a mobile phone terminal as an example.

The 5G mobile phone mobile terminal always needs to enable a 5G antenna, a 4G antenna, a GPS antenna and a wifi antenna to coexist, the problem that the antenna clearance is not enough is inevitably caused in a limited space, particularly in the mobile terminal of a full-screen, the front double cameras and the rear four cameras are arranged, the devices seriously extrude the arrangement space of the antenna, the antenna clearance is extremely small and is almost zero. The technical scheme provided by the application can effectively solve the problem of the antenna performance of the 5G mobile phone, the flexible circuit board FPC (Free Pascal Compiler) antenna is respectively arranged on the inner side and the outer side of the plastic rear cover, the conductive ink is directly printed in the mobile phone to manufacture the antenna PDS (PBINTI NG Direct Structure) process antenna, meanwhile, the environment treatment is carried out on the metal devices around the antenna, and the antenna design mode that the 4G antenna and the 5G antenna coexist in a limited space is realized

The electronic device may comprise a display screen (not shown), a non-metallic back cover 11 and an antenna arrangement 12. It should be noted that the electronic devices shown in fig. 1 and fig. 2 are not limited to the above, and may also include other devices, such as a front camera, a rear camera, and the like.

The non-metal rear cover 11 directly has a receiving space for receiving a display (not shown), a battery 19, a printed circuit board (not shown), and the like.

The non-metal rear cover 11 includes a cover plate 13 and a frame 14 disposed around the cover plate 13. The display screen is arranged on one side of the frame 14, and the cover plate 13 is arranged on the other side of the frame 14. The display screen, the cover plate 13 and the frame 14 together enclose an accommodating space for accommodating devices such as a battery, the antenna device 12 and a circuit board.

The cover plate 13 and the frame 14 may be of a separate structure or an integrated structure. Specifically, the non-metal rear cover 11 and the frame 14 may be integrally formed to form a finished non-metal rear cover 11 structure. The non-metal rear cover 11 may be a plastic rear cover formed by injection molding or a ceramic rear cover formed by injection molding.

The cover plate 13 is disposed on one side of the frame 14, and the cover plate 13 is used for carrying the antenna device 12, the circuit board, and the like. Moreover, a hollow portion 131 is provided on the cover plate 13, and the hollow portion 131 can be used for mounting a battery, a camera, and the like. Moreover, for the position where the cover plate 13 does not need to provide a bearing function, the cover plate 13 may also be provided with a hollow portion 131, and the hollow portion 131 may be used to reduce the occupied space of the non-metal rear cover 11 in the thickness direction of the mobile phone.

The frame 14 includes a first side frame 141, a second side frame 142, a third side frame 143, and a fourth side frame 144 connected end to end in sequence. The first side frame 141 and the third side frame 143 correspond to the bottom end and the top end of the cover plate 13, respectively. The second side frame 142 and the fourth side frame 144 are disposed on opposite sides of the first side frame 141 and the third side frame 143. The first side frame 141 and the third side frame 143 correspond to upper and lower ends of the cover plate 13, respectively, and the first antenna is disposed near the third side frame 143.

The electronic device 10 further comprises a power amplifier module 15, a USB interface 16 and an earphone base 17. The power amplifier module 15, the USB interface 16 and the earphone seat 17 are arranged at the bottom of the nonmetal rear cover 11. The power amplifier module 15, the USB interface 16 and the earphone seat 17 are all disposed near the first side frame 141 of the non-metal rear cover 11. The earphone seat 17 is disposed near the second side frame 142, and the power amplifier module 15 is disposed near the fourth side frame 144. The USB interface 16 is disposed between the power amplifier module 15 and the earphone socket 17. The power amplifier module 15, the USB interface 16 and the earphone seat 17 are all grounded.

The antenna device 12 is provided in the non-metallic back cover 11. The antenna device 12 is disposed at the bottom of the non-metallic back cover 11. The antenna device 12 includes a first antenna 121 for transceiving antenna signals of a first frequency band and a second antenna 122 for transceiving antenna signals of a second frequency band. The second frequency band is greater than the first frequency band. Specifically, in the present embodiment, the first antenna 121 is a 4G antenna. The second antenna 122 is a 5G antenna.

The first antenna 121 is disposed on the inner side of the non-metal rear cover 11 and attached to the inner sidewall of the first side frame 141. Because the power amplifier module 15, the USB interface 16 and the earphone seat 17 are all disposed near the first side frame 141 of the non-metal rear cover 11, the power amplifier module 15, the USB interface 16 and the earphone seat 17 are disposed around the first antenna 121. The first antenna 121 needs to perform grounding processing on the peripheral devices, and the earphone seat 17, the USB interface 16, the power amplifier module 15, and the like need to perform reliable grounding and filtering processing.

The antenna arrangement 12 further comprises a tuning switch. Using the tuning switch, the transmitter can be impedance matched to the antenna, thereby maximizing the radiated power of the antenna at any frequency. It is understood that the tuning switch may be a switching device formed by electrically connecting electronic components such as a capacitor, an inductor, a resistor, and the like. The tuning switch can not only change the on-off state of the circuit, but also change the self-lifting capacitance value, resistance value and the like to adjust the equivalent electrical length of the antenna radiator so as to adjust the frequency of the electromagnetic wave signal generated by the antenna according to the excitation signal.

The first antenna 121 is electrically connected to the first tuning switch, and different low frequency states of the first antenna 121 are switched by the communication relationship between the first antenna 121 and the first tuning switch. Specifically, the first frequency band is 824MHZ-2690 MHZ. Therefore, the first antenna 121 can realize the coverage of the low and medium high frequency bands 824Mhz-2690 Mhz.

In other embodiments, the first tuning switch may be omitted, thereby reducing the cost of the antenna device 12.

Referring to fig. 2 and 3, the second antenna 122 is an antenna formed by directly printing conductive ink inside the mobile phone, i.e., a PDS (inside NG Direct Structure) process antenna. The second antenna 122 includes an inner antenna 1221 and an outer antenna 1222. The inner antenna 1221 is routed on the inner side of the non-metal rear cover 11, the outer antenna 1222 is routed on the outer side of the non-metal rear cover 11, and the inner antenna 1221 is electrically connected to the outer antenna 1222. The cover plate 13 is provided with a metal via 132, and the inner antenna 1221 and the outer antenna 1222 are electrically connected through the metal via 132. The inner antenna 1221 and the outer antenna 1222 may be partially printed on the cover 13 or the frame 14, and the distribution of the inner antenna 1221 and the outer antenna 1222 on the cover 13 and the frame 14 may be correspondingly arranged according to a specific circuit design for the purpose of reducing the printed area of the second antenna 122 and not affecting each other in radiation.

The inner antenna 1221 is disposed opposite to the outer antenna 1222. The inner antenna 1221 is provided on the inner surface of the cover 13 and the inner surface of the frame 14. The outer antenna 1222 is provided on the outer surface of the cover plate 13 and the outer surface of the frame 14. It is understood that the inner antenna 1221 and the outer antenna 1222 may be formed on the inner and outer sides of the non-metal rear cover 11 by a laser direct forming technique or a printing direct forming technique.

Specifically, in the present embodiment, the second antenna 122 includes a monopole antenna and a parasitic antenna. The inner antenna 1221 is a parasitic antenna and the outer antenna 1222 is a monopole antenna. The monopole antenna located outside the cover plate 13 is electrically connected to the feed spring through the metal via 132, so as to realize the feed connection of the monopole antenna outside the cover plate 13.

The second antenna 122 is disposed proximate the second bezel 142. A part of the monopole antenna is printed on the outer side surface of the cover plate 13, and a part of the monopole antenna is printed on the outer side wall of the second side frame 142. A part of the parasitic antenna is printed on the inner side surface of the cover plate 13, and a part of the parasitic antenna is printed on the inner side wall of the second side frame 142. The parasitic antenna is disposed opposite to the monopole antenna. Moreover, a metal via hole 132 is formed in the cover plate 13, and the monopole antenna and the parasitic antenna are electrically connected through the metal via hole 132.

Specifically, in the present embodiment, the second antenna 122 is electrically connected to the second tuning switch, and the different medium-high frequency states of the second antenna 122 are switched by the open/close state of the second tuning switch. The second frequency band is 1710MHz-2690 MHz. The second antenna 122 can achieve coverage of the medium-high frequency antenna frequency band 1710Mhz-2690 Mhz.

In other embodiments, the second tuning switch may be omitted, thereby reducing the cost of the antenna device 12.

The antenna arrangement 12 further comprises a third antenna 123. The third antenna 123 is used for transceiving antenna signals of a third frequency band, and the third antenna 123 is disposed along the fourth bezel 144.

The third antenna 123 may be a double Inverted-F IFA (Inverted-Fantenna) antenna. The third antenna 123 has a small volume and is easily impedance-matched. The third antenna 123 is in the form of a flexible circuit board FPC (Free Pascal Compiler) antenna, and is attached to the inside of the non-metal rear cover 11. Specifically, a portion of the third antenna 123 is attached to the inner sidewall of the fourth bezel 144, and a portion thereof is attached to the cover 13.

The third antenna 123 is electrically connected to the third tuning switch, and the operating state of the third antenna 123 can be controlled by the open/close state of the third tuning switch.

When the third tuning switch is turned off, the third antenna 123 is in an initial state, and the two inverted-F antenna branches of the third antenna 123 can operate in 2515Mhz-2675Mhz and 4.8Ghz-4.9Ghz states. The inverted-F antenna stub near the second tuning switch operates at 2515Mhz-2675 Mhz.

When the third tuning switch is turned off, the inductance of the ground point of the third tuning switch is short-circuited, which is equivalent to that the third antenna 123 is directly grounded, and is equivalent to that the length of the third antenna 123 is cut short, and at this time, the two inverted-F antenna branches of the third antenna 123 respectively operate in the states of 3.4Ghz-3.6Ghz and 4.8Ghz-4.9 Ghz.

Thus, the third frequency band includes 2515MHz-2675MHz, 3.4GHz-3.6GHz, 4.8GHz-4.9 GHz. The third antenna 123 can realize the coverage of three frequency bands of 2515Mhz-2675Mhz, 3.4Ghz-3.6Ghz and 4.8Ghz-4.9Ghz under the two states of the third tuning switch being closed and opened.

In other embodiments, the third tuning switch may be omitted, thereby reducing the cost of the antenna device 12.

Referring to fig. 2 and 3, the antenna device 12 further includes a fourth antenna 124. The fourth antenna 124 is disposed on the cover 13, and the fourth antenna 124 is disposed opposite to the first antenna 121. The fourth antenna 124 is a metal sheet. The metal sheet is disposed on the outer side surface of the cover plate 13, and the fourth antenna 124 is provided with a connecting portion 1241, where the connecting portion 1241 extends from the outer side of the cover plate 13 to the inner side of the cover plate 13 through the hollow portion 131 of the cover plate 13, so as to be electrically connected with the main board and the like inside the cover plate 13.

Specifically, the fourth antenna 124 is an electromagnetic wave absorption ratio sensor antenna. The fourth antenna 124 is a coil-on-ferrite design.

In the electronic device, the first antenna may operate in a state of covering a first frequency band, and the second antenna may operate in a state of covering a second frequency band. Thus, the first antenna may be a 4G antenna and the second antenna may be a 5G antenna. Considering the structural strength of the electronic equipment and the clearance balance of the antenna device, the second antenna is arranged by simultaneously routing the inner side and the outer wall of the non-metal rear cover to form the inner side antenna and the outer side antenna for covering 5G frequency, so that the routing area of the second antenna is reduced, the problem of extremely small clearance of the antenna device is solved, and the signal quality of the antenna device is ensured. Therefore, in the electronic device, the available headroom of the antenna device is increased as much as possible in a limited space, and the antenna device can realize broadband coverage and realize coverage of a 4G frequency band and a 5G frequency band.

Moreover, the antenna device is arranged at the bottom of the non-metal rear cover, so that the top space of the non-metal rear cover is not occupied, and the comprehensive screen of the mobile phone is favorably realized.

While the present disclosure 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:

a non-metallic rear cover;

2. The electronic device of claim 1, wherein the non-metal back cover includes a cover plate and a frame disposed around the cover plate, the inner antenna is disposed opposite to the outer antenna, the inner antenna is disposed on an inner side of the cover plate and an inner side of the frame, and the outer antenna is disposed on an outer side of the cover plate and an outer side of the frame.

3. The electronic device of claim 2, wherein the cover plate is provided with a metal via hole, and the inner antenna and the outer antenna are electrically connected through the metal via hole.

4. The electronic device according to claim 1, wherein the second antenna includes a monopole antenna and a parasitic antenna, the monopole antenna is disposed on an outer side surface of the non-metal rear cover, and the parasitic antenna is disposed on an inner side surface of the non-metal rear cover.

5. The electronic device of claim 1, wherein the first frequency band is 824MHZ-2690 MHZ.

6. The electronic device of claim 1, wherein the second frequency band is 1710MHZ-2690 MHZ.

7. The electronic device of claim 2, wherein the bezel includes a first side frame, a second side frame, a third side frame, and a fourth side frame connected end to end in sequence, the first side frame and the third side frame correspond to the bottom end and the top end of the cover plate, respectively, the second side frame and the fourth side frame are disposed on opposite sides of the first side frame and the third side frame, the first antenna is partially attached to an inner side wall of the first side frame, and the second antenna is disposed near the second side frame.

8. The electronic device of claim 7, wherein the antenna apparatus further comprises a third antenna for transceiving antenna signals in a third frequency band, and the third antenna is disposed along the fourth frame.

9. The electronic device of claim 8, wherein the third frequency band comprises 2515MHZ-2675MHZ, 3.4GHZ-3.6GHZ, 4.8GHZ-4.9 GHZ.

10. The electronic device according to claim 7, wherein the antenna device further includes a fourth antenna disposed on the outer side surface of the cover plate and disposed opposite to the first antenna, and the fourth antenna is provided with a connecting portion extending from an outer side of the cover plate to an inner side of the cover plate.

11. The electronic device of claim 7, further comprising a power amplifier module, a USB interface, and an earphone base, wherein the power amplifier module, the USB interface, and the earphone base are disposed near the first side frame of the non-metal rear cover, the earphone base is disposed near the second side frame, the power amplifier module is disposed near the fourth side frame, and the USB interface is disposed between the power amplifier module and the earphone base.