CN211209701U - Wireless charging device and terminal - Google Patents
Wireless charging device and terminal Download PDFInfo
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- CN211209701U CN211209701U CN201922501363.4U CN201922501363U CN211209701U CN 211209701 U CN211209701 U CN 211209701U CN 201922501363 U CN201922501363 U CN 201922501363U CN 211209701 U CN211209701 U CN 211209701U
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Abstract
The application relates to a wireless charging device and terminal, wherein: the millimeter wave transmitting circuit is respectively connected with the millimeter wave module and the charging control circuit and is used for transmitting millimeter wave signals to the millimeter wave module according to the control of the charging control circuit; the millimeter wave module is connected with the radio frequency switch module and used for receiving millimeter wave signals transmitted by external equipment; the radio frequency switch module is respectively connected with the millimeter wave rectifying circuit and the millimeter wave communication receiving circuit and is used for conducting a passage between the millimeter wave module and the millimeter wave rectifying circuit and between the millimeter wave communication receiving circuit in a time-sharing manner; the charging control circuit is respectively connected with the millimeter wave rectifying circuit and the millimeter wave transmitting circuit and used for controlling the charging function and receiving and storing the direct current signal output by the millimeter wave rectifying circuit. The wireless charging device wirelessly charges through millimeter waves, and can realize remote charging. In addition, the wireless charging device can be used for a terminal provided with the wireless charging device to perform a wireless charging function and also perform a communication function by adopting a time division working principle.
Description
Technical Field
The present invention relates to the field of wireless charging technologies, and in particular, to a wireless charging device and a terminal.
Background
At present, terminals such as mobile phones and tablet computers are more and more commonly used, and the life of people is greatly facilitated. At present, terminals such as mobile phones and tablet computers adopt rechargeable batteries which can be charged circularly. However, most of the existing charging methods are charging by a wired method, and when people go out, people need to carry a charging wire and the like, which is very inconvenient. The wireless charging is favored by more and more consumers because the power line is not needed and the use of the terminal is not influenced everywhere.
At present, wireless charging is mostly based on electromagnetic induction or magnetic induction technology of coils, but the wireless charging mode cannot be applied to remote wireless charging.
Disclosure of Invention
The application provides a wireless charging device and terminal can realize remote wireless charging, and can realize wireless charging function, can realize communication function again.
The utility model provides a wireless charging device, the device includes millimeter wave module, radio frequency switch module, millimeter wave transmitting circuit, millimeter wave rectifier circuit, millimeter wave communication receiving circuit and charging control circuit, wherein:
the millimeter wave transmitting circuit is respectively electrically connected with the millimeter wave module and the charging control circuit and is used for transmitting a millimeter wave signal to the millimeter wave module according to the control of the charging control circuit so as to enable the millimeter wave module to radiate the millimeter wave signal outwards to communicate with external equipment;
the millimeter wave module is electrically connected with the radio frequency switch module and is used for receiving millimeter wave signals transmitted by external equipment and sending the received millimeter wave signals to the radio frequency switch module;
the radio frequency switch module is respectively electrically connected with the millimeter wave rectifying circuit and the millimeter wave communication receiving circuit and is used for conducting a passage between the millimeter wave module and the millimeter wave rectifying circuit when the millimeter wave signal is a millimeter wave wireless charging signal; the millimeter wave module is used for receiving millimeter wave signals transmitted by the millimeter wave communication receiving circuit;
the millimeter wave rectifying circuit is used for receiving the millimeter wave signals and rectifying the millimeter wave signals into direct current signals;
the charging control circuit is electrically connected with the millimeter wave rectifying circuit and the millimeter wave transmitting circuit respectively and is used for controlling the charging function and receiving and storing the direct current signal.
In one embodiment, the millimeter wave module comprises: a millimeter wave antenna array and a duplexer; wherein:
the millimeter wave antenna array is used for receiving and transmitting the millimeter wave signals:
the duplexer is respectively electrically connected with the millimeter wave antenna array, the radio frequency switch and the millimeter wave transmitting circuit, and is used for sending the millimeter wave signals received by the millimeter wave antenna array to the radio frequency switch module and sending the millimeter wave signals transmitted by the millimeter wave transmitting circuit to the millimeter wave antenna array.
In an embodiment, the millimeter wave transmitting circuit includes a signal generator and a power amplifier module electrically connected in sequence, where the signal generator is configured to generate a millimeter wave wireless charging signal and a millimeter wave communication signal, and the power amplifier module is configured to receive and transmit the millimeter wave wireless charging signal and the millimeter wave communication signal.
In an embodiment, the power amplifier module includes a power amplifier supporting a millimeter wave communication system and a millimeter wave wireless charging signal system.
In an embodiment, the power amplifier module includes a first switch, a first power amplifier and a second power amplifier, and both the first power amplifier and the second power amplifier are electrically connected to the duplexer, wherein:
the switch is electrically connected with the charging control circuit, the first power amplifier and the second power amplifier respectively and used for conducting a channel between the duplexer and the first power amplifier when the millimeter wave wireless charging signal is transmitted according to the control of the charging control circuit; and the duplexer is also used for conducting a path between the duplexer and the second power amplifier when the millimeter wave communication signal is transmitted.
In an embodiment, the millimeter wave rectification circuit includes a rectifier diode, and the rectifier diode is electrically connected to the radio frequency switch module and the charging control circuit, respectively, and is configured to rectify the received millimeter wave signal.
In one embodiment, the millimeter wave antenna array comprises at least one antenna unit, each of the antenna units comprising one or more combinations of a patch antenna, a dipole antenna, a monopole antenna, and a yagi antenna.
The device still includes intermediate frequency conversion module, intermediate frequency conversion module respectively with the duplexer radio frequency switch electric connection for with millimeter wave signal conversion is intermediate frequency signal, and will intermediate frequency signal output extremely radio frequency switch.
In an embodiment, the intermediate frequency conversion module includes low noise amplifier and intermediate frequency converter, the device still includes the second switch, the second switch respectively with low noise amplifier and intermediate frequency converter electric connection for switch on when the millimeter wave signal is millimeter wave communication signal the duplexer with the passageway between the low noise amplifier, still be used for when the millimeter wave signal is the wireless signal that charges of millimeter wave switch on the duplexer with the passageway between the intermediate frequency converter.
A terminal comprises the wireless charging device.
The embodiment of the application provides a wireless charging device includes millimeter wave module, radio frequency switch module, millimeter wave transmitting circuit, millimeter wave rectifier circuit, millimeter wave communication receiving circuit and charging control circuit, wherein: the millimeter wave transmitting circuit is respectively electrically connected with the millimeter wave module and the charging control circuit and is used for transmitting a millimeter wave signal to the millimeter wave module according to the control of the charging control circuit so as to enable the millimeter wave module to radiate the millimeter wave signal outwards to communicate with external equipment; the millimeter wave module is electrically connected with the radio frequency switch module and is used for receiving millimeter wave signals transmitted by external equipment and sending the received millimeter wave signals to the radio frequency switch module; the radio frequency switch module is respectively electrically connected with the millimeter wave rectifying circuit and the millimeter wave communication receiving circuit and is used for conducting a passage between the millimeter wave module and the millimeter wave rectifying circuit when the millimeter wave signal is a millimeter wave wireless charging signal; the millimeter wave module is used for receiving millimeter wave signals transmitted by the millimeter wave communication receiving circuit; the millimeter wave rectifying circuit is used for receiving the millimeter wave signals and rectifying the millimeter wave signals into direct current signals; the charging control circuit is electrically connected with the millimeter wave rectifying circuit and the millimeter wave transmitting circuit respectively and is used for controlling the charging function and receiving and storing the direct current signal. The application provides a wireless charging device carries out wireless charging through the millimeter wave, can realize remote charging. In addition, the millimeter wave wireless charging and communication functions are integrated by adopting the time division operating principle, so that the terminal provided with the wireless charging device can carry out wireless charging and communication.
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 a terminal according to an embodiment;
fig. 2 is a schematic structural diagram of a wireless charging device according to an embodiment;
fig. 3 is a second schematic structural diagram of a wireless charging device according to an embodiment;
fig. 4 is a third schematic structural diagram of a wireless charging device according to an embodiment;
fig. 5 is a schematic structural diagram of a power amplifier module according to an embodiment;
fig. 6 is a fourth schematic structural diagram of a wireless charging device according to an embodiment.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth to provide a thorough understanding of the present application, and in the accompanying drawings, preferred embodiments of the present application are set forth. 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. This application is capable of embodiments in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. In the description of the present application, "a number" means at least one, such as one, two, etc., unless specifically limited otherwise.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. The terms "coupled," "connected," "electrically connected," and "electrically connected," as used herein, include any direct and indirect electrical or structural connection. Thus, if a first device couples, connects, or electrically connects to a second device, that connection may be through a direct electrical connection, or through an indirect electrical connection via other devices and connections.
The terminal in the application can be a communication module including a Mobile phone, a tablet computer, a notebook computer, a palm computer, a Mobile Internet Device (MID), a wearable Device (such as a smart watch, a smart bracelet, a pedometer, etc.), or other devices capable of setting a wireless charging Device.
As shown in FIG. 1, in an embodiment of the present application, the terminal 10 may include a display screen assembly 101, a housing assembly 102, and a controller. The display screen assembly 101 is secured to the housing assembly 102 and forms the exterior structure of the terminal with the housing assembly 102. The housing assembly 102 may include a center frame and a rear cover. The middle frame can be a frame structure with a through hole. The middle frame can be accommodated in an accommodating space formed by the display screen assembly and the rear cover. The rear cover is used to form the outer contour of the terminal. The rear cover may be integrally formed. In the forming process of the rear cover, structures such as a rear camera hole, a fingerprint identification module, an antenna device mounting hole and the like can be formed on the rear cover. Wherein, the back lid can be behind the nonmetal lid, for example, the back lid can be behind the plastic lid, the lid behind the pottery, the lid behind the 3D glass etc.. The controller can control the operation of the terminal, etc. The display screen component can be used for displaying pictures or fonts and can provide an operation interface for a user.
In one embodiment, a wireless charging device is integrated within the housing assembly 102, and the wireless charging device is capable of transmitting and receiving millimeter wave signals through the housing assembly 102.
Fig. 2 is a schematic structural diagram of a wireless charging device according to an embodiment, as shown in fig. 2, the wireless charging device includes a millimeter wave module 110, a radio frequency switch module 120, a millimeter wave transmitting circuit 160, a millimeter wave rectifying circuit 130, a millimeter wave communication receiving circuit 150, and a charging control circuit 140, where:
the millimeter wave transmitting circuit 160 is electrically connected to the millimeter wave module 110 and the charging control circuit 140, and is configured to transmit a millimeter wave signal to the millimeter wave module 110 according to the control of the charging control circuit 140, so that the millimeter wave module 110 radiates the millimeter wave signal to the outside to communicate with an external device;
the millimeter wave module 110 is electrically connected to the radio frequency switch module 120, and is configured to receive a millimeter wave signal transmitted by an external device and send the received millimeter wave signal to the radio frequency switch module 120;
the radio frequency switch module 120 is electrically connected to the millimeter wave rectification circuit 130 and the millimeter wave communication receiving circuit 150, respectively, and is configured to conduct a path between the millimeter wave module 110 and the millimeter wave rectification circuit 130 when the millimeter wave signal is a millimeter wave wireless charging signal; the millimeter wave module 110 is further configured to, when the millimeter wave signal is a millimeter wave communication signal, turn on a path between the millimeter wave module 110 and the millimeter wave communication receiving circuit 150;
the millimeter wave rectification circuit 130 is configured to receive a millimeter wave signal and rectify the millimeter wave signal into a direct current signal;
the charging control circuit 140 is electrically connected to the millimeter wave rectification circuit 130 and the millimeter wave emitting circuit 160, respectively, and is configured to control a charging function, and receive and store a dc signal.
The millimeter wave transmitting circuit 160 is configured to transmit and transmit a millimeter wave signal in a preset direction according to the control of the charging control circuit 140, so as to radiate the millimeter wave signal outwards through the millimeter wave module 110 to communicate with an external device, where the external device also includes a wireless charging apparatus. Specifically, the millimeter wave transmitting circuit 160 may transmit a millimeter wave wireless charging signal and may also transmit a millimeter wave communication signal. And transmitting millimeter wave communication signals when the responsible and external equipment (a charging target or a charging party) completes negotiation, wherein the specific negotiation content comprises when to communicate and when to wirelessly charge, and communication and wireless charging processes are carried out according to the negotiation result. In the negotiation wireless charging process, the millimeter wave communication signal comprises: charging power and millimeter wave beam forming parameters. The millimeter wave transmitting circuit 160 is responsible for completing negotiation of charging power, beam transmitting direction and corresponding beam forming with an external device (charging target or charging party), and then allocates a charging time slot through the controller, and controls the radio frequency switch module 120 to complete corresponding switching, so that the external device and the terminal where the wireless charging device provided in this embodiment is located perform a wireless charging process.
The wireless charging apparatus provided in this embodiment may be used as a charging target to receive power supplied from an external device, or may be used as a charging target to supply power to an external device. When the charging target is set, the charging control circuit 140 stores the direct current signal output by the millimeter wave rectification circuit 130; when the charging side is the charging side, the charging control circuit 140 sends an instruction to the millimeter wave transmitting circuit 160, instructing the millimeter wave communication signal to transmit the millimeter wave wireless charging signal to the external device, so as to charge the external device.
The rf switch module 120 is electrically connected to the millimeter wave rectification circuit 130 and the millimeter wave communication receiving circuit 150, and is configured to respectively connect the path between the millimeter wave module 110 and the millimeter wave rectification circuit 130 or the millimeter wave communication receiving circuit 150 according to the control of the controller. Specifically, when the millimeter wave transmitting circuit 160 and the external device negotiate to perform a wireless charging function currently, the radio frequency switch module 120 switches on a path between the millimeter wave module 110 and the millimeter wave rectifying circuit 130, and the millimeter wave module 110 receives a millimeter wave wireless charging signal sent by the external device and transmits the millimeter wave wireless charging signal to the millimeter wave rectifying circuit 130. If the communication function is currently performed, the radio frequency switch module 120 switches on a path between the millimeter wave module 110 and the millimeter wave communication receiving circuit 150, and the millimeter wave module 110 receives a millimeter wave communication signal sent by an external device and transmits the millimeter wave communication signal to the millimeter wave communication receiving circuit 150, so as to perform millimeter wave communication with the external device.
The millimeter wave rectifying circuit 130 rectifies the millimeter wave signal into a dc signal and supplies the dc signal to the charge control circuit 140. In an embodiment, the millimeter wave rectification circuit 130 includes a rectifier diode, and the rectifier diode is electrically connected to the millimeter wave module 110 and the charging control circuit 140, respectively, and is used for rectifying the received millimeter wave signal. The millimeter wave rectification circuit 130 may further include a filter, and the filter is electrically connected to the millimeter wave module 110 and the rectifier diode, respectively, and is configured to perform filtering processing on the millimeter wave wireless charging signal. The millimeter wave rectification circuit 130 firstly performs filtering processing on the millimeter wave wireless charging signal through the filter, and then performs rectification processing on the millimeter wave wireless charging signal through the rectifier diode, so that the obtained direct current signal has better quality.
It should be noted that the millimeter wave rectification circuit 130 may also be in other circuit forms, and the specific circuit composition of the millimeter wave rectification circuit 130 in this embodiment is only an example, and the specific circuit form of the millimeter wave rectification circuit 130 is not limited.
In one embodiment, millimeter wave communication receiving circuit 150 includes a low noise amplifier, a feeder line, an intermediate frequency module, an analog-to-digital conversion module, and the like. After being amplified, the millimeter wave communication signal is down-converted by the intermediate frequency module through the feeder line and then input to the baseband, and then the millimeter wave communication signal is converted into a digital signal by the analog-to-digital conversion module to be processed by a post-stage terminal. The intermediate frequency block in the millimeter wave communication receiving circuit 150 may be shared with the intermediate frequency block in the millimeter wave transmitting circuit 160.
It should be noted that the millimeter wave communication receiving circuit 150 may also be in other circuit forms, and the specific circuit composition of the millimeter wave communication receiving circuit 150 in this embodiment is merely an example, and the specific circuit form of the millimeter wave communication receiving circuit 150 is not limited.
The application provides a wireless charging device carries out wireless charging through the millimeter wave, can realize remote charging. In addition, by adopting the time division working principle, the wireless charging function or the communication function is determined to be started on the basis of the communication between the millimeter wave transmitting circuit 160 and the external device, and the path between the millimeter wave module 110 and the millimeter wave rectifying circuit 130 and the millimeter wave communication receiving circuit 150 is switched on in a time division manner through the radio frequency switch module 120, so that the integration of the millimeter wave wireless charging and communication functions is realized, and the wireless charging device can perform wireless charging and can also perform communication.
In one embodiment, as shown in fig. 3, the mm-wave module 110 includes an array 111 of mm-wave antennas and a duplexer 112; wherein:
the millimeter wave antenna array 111 is used for receiving and transmitting millimeter wave signals;
the duplexer 112 is electrically connected to the millimeter wave antenna array 111, the radio frequency switch, and the millimeter wave transmitting circuit 160, and is configured to send the millimeter wave signal received by the millimeter wave antenna array 111 to the radio frequency switch module 120, and send the millimeter wave signal transmitted by the millimeter wave transmitting circuit 160 to the millimeter wave antenna array 111.
In one embodiment, millimeter-wave antenna array 111 includes at least one antenna element. The plurality of antenna elements may be arranged in an array manner such as an array, a two-dimensional array, or the like. Because the angles of the radiation signals of different arrangement modes are different, the specific arrangement mode of the antenna units can be selected according to the actual situation, and the embodiment is not limited.
In one embodiment, the antenna unit is one or more of a patch antenna, a dipole antenna, a monopole antenna and a yagi antenna. For example, the antenna array includes a combination of a patch antenna and a dipole antenna, or a yagi antenna and a monopole antenna.
The duplexer 112 is used to isolate the transmitted and received signals, and ensure that both the receiving and transmitting signals can work normally at the same time. The duplexer 112 is composed of two sets of bandpass filters with different frequencies to prevent the local transmission signal from being transmitted to the receiver. In this embodiment, the duplexer 112 may send the millimeter wave signal received by the millimeter wave antenna array 111 to the radio frequency switch module 120, and send the millimeter wave signal transmitted by the millimeter wave transmitting circuit 160 to the millimeter wave antenna array 111, so as to radiate the millimeter wave signal to an external device through the millimeter wave antenna array 111.
In one embodiment, as shown in fig. 4, the millimeter wave transmitting circuit 160 includes a signal generator 161 and a power amplifier module 162 electrically connected in sequence, where the signal generator 161 is configured to generate a millimeter wave wireless charging signal and a millimeter wave communication signal, and the power amplifier module 162 is configured to receive and transmit the millimeter wave wireless charging signal and the millimeter wave communication signal. The millimeter wave transmitting circuit 160 further includes an intermediate frequency module, a baseband module, and the like.
The millimeter wave transmitting circuit 160 may generate and transmit not only a millimeter wave communication system specified in the 5G standard, but also a millimeter wave wireless charging signal system, which may be accomplished by sharing a power amplifier. In one embodiment, the power amplifier module 162 includes a power amplifier supporting a millimeter wave communication system and a millimeter wave wireless charging signal system.
In an embodiment, as shown in fig. 5, the power amplifier module 162 includes a first switch 1621, a first power amplifier 1622, and a first power amplifier 1623, where the first power amplifier 1622 and the first power amplifier 1623 are electrically connected to the duplexer 112, and wherein: the first switch 1621 is electrically connected to the charging control circuit 140, the first power amplifier 1622, and the first power amplifier 1623, respectively, and configured to turn on a path between the duplexer 112 and the first power amplifier 1622 when transmitting the millimeter-wave wireless charging signal according to control of the charging control circuit 140; and also for conducting a path between the duplexer 112 and the second power amplifier 1623 when transmitting millimeter-wave communication signals.
In the embodiment, different power amplifiers are used for respectively transmitting the communication signal and the wireless charging signal, and the communication signal and the wireless charging signal are switched by a switch to perform time-sharing operation.
In an embodiment, as shown in fig. 6, the wireless charging device further includes an intermediate frequency conversion module 170, which is electrically connected to the duplexer 112 and the rf switch, respectively, and is configured to convert the millimeter wave signal into an intermediate frequency signal and output the intermediate frequency signal to the rf switch.
In an embodiment, the if conversion module 170 includes a low noise amplifier and an if frequency converter, and the apparatus further includes a second switch, which is electrically connected to the low noise amplifier and the if frequency converter, respectively, and is configured to conduct a path between the duplexer 112 and the low noise amplifier when the millimeter wave signal is a millimeter wave communication signal, and to conduct a path between the duplexer 112 and the if frequency converter when the millimeter wave signal is a millimeter wave wireless charging signal.
A low-noise amplifier (low-noise amplifier) is a special electronic amplifier, and is mainly used for amplifying a communication signal received from the millimeter wave module 110, so as to facilitate the subsequent terminal processing. Since the signal from the antenna is typically very weak, the low noise amplifier is typically located very close to the antenna to reduce the loss of the signal through the transmission line. When communication is performed, the communication signal output by the duplexer 112 is amplified by the low noise amplifier, and then the amplified communication signal is transmitted to the intermediate frequency conversion module 170; when wireless charging is performed, the low noise amplifier is bypassed, and the millimeter wave wireless charging signal output by the duplexer 112 is directly input to the intermediate frequency conversion module 170.
Millimeter waves refer to electromagnetic waves having a wavelength on the order of millimeters, and having a frequency of about 20GHz to about 300 GHz. The 3GPP has specified a list of frequency bands supported by 5G NR, the 5G NR spectrum range can reach 100GHz, and two frequency ranges are specified: frequency range 1(FR1), i.e. the sub-6 GHz band, and Frequency range 2(FR2), i.e. the millimeter wave band. Frequency range of Frequency range 1: 450MHz-6.0GHz, with a maximum channel bandwidth of 100 MHz. The frequency range of frequency mirror 2 is 24.25GHz-52.6GHz, and the maximum channel bandwidth is 400 MHz. The near 11GHz spectrum for 5G mobile broadband comprises: 3.85GHz licensed spectrum, for example: 28GHz (24.25-29.5GHz), 37GHz (37.0-38.6GHz), 39GHz (38.6-40GHz) and 14GHz unlicensed spectrum (57-71 GHz). The working frequency bands of the 5G communication system comprise three frequency bands of 28GHz, 39GHz and 60 GHz. Because the millimeter wave frequency band is higher, it is difficult to directly perform rectification processing on the high-frequency millimeter wave signal, and the intermediate frequency conversion module 170 is added in the embodiment, and is used for performing intermediate frequency conversion processing on the high-frequency millimeter wave signal to output an intermediate-frequency millimeter wave signal. The rectification circuit is easy to realize and has good effect in rectifying the millimeter wave signals of the intermediate frequency.
A terminal comprises the wireless charging device. Wherein, wireless charging device includes millimeter wave module 110, radio frequency switch module 120, millimeter wave transmitting circuit 160, millimeter wave rectifier circuit 130, millimeter wave communication receiving circuit 150 and charge control circuit 140, wherein:
the millimeter wave transmitting circuit 160 is electrically connected to the millimeter wave module 110 and the charging control circuit 140, and is configured to transmit a millimeter wave signal to the millimeter wave module 110 according to the control of the charging control circuit 140, so that the millimeter wave module 110 radiates the millimeter wave signal to the outside to communicate with an external device;
the millimeter wave module 110 is electrically connected to the radio frequency switch module 120, and is configured to receive a millimeter wave signal transmitted by an external device and send the received millimeter wave signal to the radio frequency switch module 120;
the radio frequency switch module 120 is electrically connected to the millimeter wave rectification circuit 130 and the millimeter wave communication receiving circuit 150, respectively, and is configured to conduct a path between the millimeter wave module 110 and the millimeter wave rectification circuit 130 when the millimeter wave signal is a millimeter wave wireless charging signal; the millimeter wave module 110 is further configured to, when the millimeter wave signal is a millimeter wave communication signal, turn on a path between the millimeter wave module 110 and the millimeter wave communication receiving circuit 150;
the millimeter wave rectification circuit 130 is configured to receive a millimeter wave signal and rectify the millimeter wave signal into a direct current signal;
the charging control circuit 140 is electrically connected to the millimeter wave rectification circuit 130 and the millimeter wave emitting circuit 160, respectively, and is configured to control a charging function, and receive and store a dc signal.
In one embodiment, the millimeter wave module 110 includes: millimeter-wave antenna array 111 and duplexer 112; wherein:
the millimeter wave antenna array 111 is used for transceiving millimeter wave signals:
the duplexer 112 is electrically connected to the millimeter wave antenna array 111, the radio frequency switch, and the millimeter wave transmitting circuit 160, and is configured to send the millimeter wave signal received by the millimeter wave antenna array 111 to the radio frequency switch module 120, and send the millimeter wave signal transmitted by the millimeter wave transmitting circuit 160 to the millimeter wave antenna array 111.
In an embodiment, the millimeter wave transmitting circuit 160 includes a signal generator 161 and a power amplifier module 162 electrically connected in sequence, where the signal generator 161 is configured to generate a millimeter wave wireless charging signal and a millimeter wave communication signal, and the power amplifier module 162 is configured to receive and transmit the millimeter wave wireless charging signal and the millimeter wave communication signal.
In one embodiment, the power amplifier module 162 includes a power amplifier supporting a millimeter wave communication system and a millimeter wave wireless charging signal system.
In an embodiment, the power amplifier module 162 includes a first switch 1621, a first power amplifier 1622, and a first power amplifier 1623, where the first power amplifier 1622 and the first power amplifier 1623 are electrically connected to the duplexer 112, and wherein:
the first switch 1621 is electrically connected to the charging control circuit 140, the first power amplifier 1622, and the first power amplifier 1623, respectively, and configured to turn on a path between the duplexer 112 and the first power amplifier 1622 when transmitting the millimeter-wave wireless charging signal according to control of the charging control circuit 140; and also for conducting a path between the duplexer 112 and the first power amplifier 1623 when transmitting millimeter-wave communication signals.
In an embodiment, the millimeter wave rectification circuit 130 includes a rectifier diode, and the rectifier diode is electrically connected to the rf switch module 120 and the charging control circuit 140, respectively, and is configured to rectify the received millimeter wave signal.
In one embodiment, millimeter-wave antenna array 111 includes at least one antenna element, each antenna element including one or more combinations of patch, dipole, monopole, and yagi antennas.
In one embodiment, the wireless charging apparatus further includes a low noise amplifier and intermediate frequency conversion module 170; wherein:
the low noise amplifier is electrically connected to the duplexer 112, and is configured to receive and amplify the millimeter wave signal;
one end of the intermediate frequency conversion module 170 is electrically connected to the duplexer 112, and is configured to receive and convert the amplified millimeter wave signal into an intermediate frequency signal; the other end of the intermediate frequency conversion module 170 is electrically connected to the radio frequency switch module 120, and is configured to output the intermediate frequency signal to the millimeter wave rectification circuit 130 or the millimeter wave communication receiving circuit 150.
In an embodiment, the wireless charging device further includes a second switch, and the second switch is electrically connected to the low-noise amplifier and the intermediate-frequency conversion module 170 of the duplexer 112, respectively, and is configured to conduct a path between the duplexer 112 and the low-noise amplifier when the millimeter-wave signal is the millimeter-wave communication signal, and is further configured to conduct a path between the duplexer 112 and the intermediate-frequency conversion module 170 when the millimeter-wave signal is the millimeter-wave wireless charging signal.
The wireless charging device adopts a time division working principle, determines to start a wireless charging function or a communication function on the basis of communication between the millimeter wave transmitting circuit 160 and external equipment, and conducts a path between the millimeter wave module 110 and the millimeter wave rectifying circuit 130 and the millimeter wave communication receiving circuit 150 in a time division manner through the radio frequency switch module 120, so that integration of millimeter wave wireless charging and communication functions is realized, and a terminal provided with the wireless charging device can be wirelessly charged and can also communicate.
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 invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The utility model provides a wireless charging device, its characterized in that, the device includes millimeter wave module, radio frequency switch module, millimeter wave transmitting circuit, millimeter wave rectifier circuit, millimeter wave communication receiving circuit and charge control circuit, wherein:
the millimeter wave transmitting circuit is respectively electrically connected with the millimeter wave module and the charging control circuit and is used for transmitting a millimeter wave signal to the millimeter wave module according to the control of the charging control circuit so as to enable the millimeter wave module to radiate the millimeter wave signal outwards to communicate with external equipment;
the millimeter wave module is electrically connected with the radio frequency switch module and is used for receiving millimeter wave signals transmitted by external equipment and sending the received millimeter wave signals to the radio frequency switch module;
the radio frequency switch module is respectively electrically connected with the millimeter wave rectifying circuit and the millimeter wave communication receiving circuit and is used for conducting a passage between the millimeter wave module and the millimeter wave rectifying circuit when the millimeter wave signal is a millimeter wave wireless charging signal; the millimeter wave module is used for receiving millimeter wave signals transmitted by the millimeter wave communication receiving circuit;
the millimeter wave rectifying circuit is used for receiving the millimeter wave signals and rectifying the millimeter wave signals into direct current signals;
the charging control circuit is electrically connected with the millimeter wave rectifying circuit and the millimeter wave transmitting circuit respectively and is used for controlling the charging function and receiving and storing the direct current signal.
2. The apparatus of claim 1, wherein the millimeter wave module comprises: a millimeter wave antenna array and a duplexer; wherein:
the millimeter wave antenna array is used for receiving and transmitting the millimeter wave signals:
the duplexer is respectively electrically connected with the millimeter wave antenna array, the radio frequency switch and the millimeter wave transmitting circuit, and is used for sending the millimeter wave signals received by the millimeter wave antenna array to the radio frequency switch module and sending the millimeter wave signals transmitted by the millimeter wave transmitting circuit to the millimeter wave antenna array.
3. The apparatus of claim 2, wherein the millimeter wave transmitting circuit comprises a signal generator and a power amplifier module electrically connected in sequence, wherein the signal generator is configured to generate a millimeter wave wireless charging signal and a millimeter wave communication signal, and the power amplifier module is configured to receive and transmit the millimeter wave wireless charging signal and the millimeter wave communication signal.
4. The apparatus of claim 3, wherein the power amplifier module comprises a power amplifier supporting a millimeter wave communication system and a millimeter wave wireless charging signal system.
5. The apparatus of claim 3, wherein the power amplifier module comprises a first switch, a first power amplifier, and a second power amplifier, the first power amplifier and the second power amplifier each electrically connected to the duplexer, wherein:
the switch is electrically connected with the charging control circuit, the first power amplifier and the second power amplifier respectively and used for conducting a channel between the duplexer and the first power amplifier when the millimeter wave wireless charging signal is transmitted according to the control of the charging control circuit; and the duplexer is also used for conducting a path between the duplexer and the second power amplifier when the millimeter wave communication signal is transmitted.
6. The apparatus according to claim 1, wherein the millimeter wave rectification circuit comprises a rectifier diode, and the rectifier diode is electrically connected to the rf switch module and the charge control circuit, respectively, for rectifying the received millimeter wave signal.
7. The apparatus of claim 1, wherein the array of millimeter wave antennas comprises at least one antenna element, each of the antenna elements comprising one or more combinations of a patch antenna, a dipole antenna, a monopole antenna, and a yagi antenna.
8. The apparatus according to claim 2, further comprising an intermediate frequency conversion module, electrically connected to the duplexer and the radio frequency switch, respectively, for converting the millimeter wave signal into an intermediate frequency signal and outputting the intermediate frequency signal to the radio frequency switch.
9. The apparatus according to claim 8, wherein the if conversion module comprises a low noise amplifier and an if frequency converter, the apparatus further comprises a second switch electrically connected to the low noise amplifier and the if frequency converter, respectively, for switching on a path between the duplexer and the low noise amplifier when the millimeter wave signal is a millimeter wave communication signal, and for switching on a path between the duplexer and the if frequency converter when the millimeter wave signal is a millimeter wave wireless charging signal.
10. A terminal, characterized in that it comprises a wireless charging device according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922501363.4U CN211209701U (en) | 2019-12-31 | 2019-12-31 | Wireless charging device and terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922501363.4U CN211209701U (en) | 2019-12-31 | 2019-12-31 | Wireless charging device and terminal |
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| CN211209701U true CN211209701U (en) | 2020-08-07 |
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| CN201922501363.4U Active CN211209701U (en) | 2019-12-31 | 2019-12-31 | Wireless charging device and terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111817450A (en) * | 2020-08-27 | 2020-10-23 | 鹏城实验室 | Underwater communication power supply system based on magnetic communication |
| CN113162181A (en) * | 2021-04-29 | 2021-07-23 | 四川虹美智能科技有限公司 | Wireless charging method and system, receiving device and charging device |
| CN113726030A (en) * | 2021-08-25 | 2021-11-30 | 上海联净电子科技有限公司 | Millimeter wave wireless charging management method, device, server, system and medium |
| CN113852705A (en) * | 2021-09-22 | 2021-12-28 | 联想(北京)有限公司 | Electronic equipment and control method |
| WO2022198399A1 (en) * | 2021-03-22 | 2022-09-29 | 北京小米移动软件有限公司 | Charging method and apparatus |
| WO2023241128A1 (en) * | 2022-06-13 | 2023-12-21 | 中兴通讯股份有限公司 | Wireless charging apparatus and method therefor, electronic device and storage medium |
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2019
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111817450A (en) * | 2020-08-27 | 2020-10-23 | 鹏城实验室 | Underwater communication power supply system based on magnetic communication |
| WO2022198399A1 (en) * | 2021-03-22 | 2022-09-29 | 北京小米移动软件有限公司 | Charging method and apparatus |
| CN113162181A (en) * | 2021-04-29 | 2021-07-23 | 四川虹美智能科技有限公司 | Wireless charging method and system, receiving device and charging device |
| CN113726030A (en) * | 2021-08-25 | 2021-11-30 | 上海联净电子科技有限公司 | Millimeter wave wireless charging management method, device, server, system and medium |
| CN113852705A (en) * | 2021-09-22 | 2021-12-28 | 联想(北京)有限公司 | Electronic equipment and control method |
| GB2611133A (en) * | 2021-09-22 | 2023-03-29 | Lenovo Beijing Ltd | Electronic device and control method |
| CN113852705B (en) * | 2021-09-22 | 2023-09-19 | 联想(北京)有限公司 | Electronic equipment and control method |
| US11929628B2 (en) | 2021-09-22 | 2024-03-12 | Lenovo (Beijing) Limited | Electronic device and control method |
| GB2611133B (en) * | 2021-09-22 | 2024-06-05 | Lenovo Beijing Ltd | Electronic device and control method |
| WO2023241128A1 (en) * | 2022-06-13 | 2023-12-21 | 中兴通讯股份有限公司 | Wireless charging apparatus and method therefor, electronic device and storage medium |
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