CN211720339U - Wireless charging device and terminal - Google Patents
Wireless charging device and terminal Download PDFInfo
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- CN211720339U CN211720339U CN201922497363.1U CN201922497363U CN211720339U CN 211720339 U CN211720339 U CN 211720339U CN 201922497363 U CN201922497363 U CN 201922497363U CN 211720339 U CN211720339 U CN 211720339U
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Abstract
The application relates to a wireless charging device and a terminal, which comprise a millimeter wave module, a millimeter wave rectifying circuit, a charging control circuit, a millimeter wave communication receiving circuit and a millimeter wave communication transmitting circuit; the millimeter wave module is respectively connected with the millimeter wave rectifying circuit and the millimeter wave communication receiving circuit, and is used for receiving and dividing the millimeter wave signal into a millimeter wave wireless charging signal and a millimeter wave communication signal according to the frequency of the millimeter wave signal, and respectively transmitting the millimeter wave wireless charging signal and the millimeter wave communication signal to the millimeter wave rectifying circuit and the millimeter wave communication receiving circuit; the millimeter wave rectifying circuit is used for rectifying the millimeter wave wireless charging signal into a direct current signal; the charging control circuit is connected with the millimeter wave rectifying circuit and used for controlling the charging function and receiving and storing the direct current signal; the millimeter wave communication transmitting circuit is used for communicating with external equipment. The wireless charging device wirelessly charges through millimeter waves, and can realize remote charging. In addition, the frequency division working principle is adopted, so that the wireless charging device can perform wireless charging and communication simultaneously.
Description
Technical Field
The present application relates to the field of 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.
SUMMERY OF THE UTILITY MODEL
The application provides a wireless charging device and terminal, can realize long-distance wireless charging, and wireless charging and communication can simultaneous working.
A wireless charging device comprises a millimeter wave module, a millimeter wave rectifying circuit, a charging control circuit, a millimeter wave communication receiving circuit and a millimeter wave communication transmitting circuit; wherein:
the millimeter wave module is respectively electrically connected with the millimeter wave rectifying circuit and the millimeter wave communication receiving circuit and used for receiving millimeter wave signals, dividing the millimeter wave signals into millimeter wave wireless charging signals and millimeter wave communication signals according to the frequency of the millimeter wave signals, transmitting the millimeter wave wireless charging signals to the millimeter wave rectifying circuit and transmitting the millimeter wave communication signals to the millimeter wave communication receiving circuit so as to enable the millimeter wave communication receiving circuit to communicate with external equipment;
the millimeter wave rectifying circuit is used for receiving the millimeter wave wireless charging signal and rectifying the millimeter wave wireless charging signal into a direct current signal;
the charging control circuit is electrically connected with the millimeter wave rectifying circuit and used for controlling a charging function and receiving and storing the direct current signal;
the millimeter wave communication transmitting circuit is electrically connected with the millimeter wave module and used for sending a millimeter wave communication signal to the millimeter wave module so that the millimeter wave module radiates the millimeter wave communication signal outwards to communicate with external equipment.
In one embodiment, the millimeter wave module comprises a millimeter wave antenna array, a duplexer and a filter; 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 filter and the millimeter wave communication transmitting circuit, and is used for sending millimeter wave signals received by the millimeter wave antenna array to the filter and sending millimeter wave signals transmitted by the millimeter wave communication transmitting circuit to the millimeter wave antenna array;
the filter is electrically connected with the millimeter wave rectifying circuit and the millimeter wave communication receiving circuit respectively and is used for dividing the millimeter wave signals into millimeter wave wireless charging signals and millimeter wave communication signals according to the frequency of the millimeter wave signals, transmitting the millimeter wave wireless charging signals to the millimeter wave rectifying circuit and transmitting the millimeter wave communication signals to the millimeter wave communication receiving circuit.
In one embodiment, the device further comprises a combiner and a millimeter wave wireless charging transmitting circuit;
the millimeter wave wireless charging transmitting circuit is electrically connected with the charging control circuit and is used for transmitting a millimeter wave wireless charging signal to the combiner according to the control of the charging control circuit;
the combiner is electrically connected with the duplexer, the millimeter wave wireless charging transmitting circuit and the millimeter wave communication transmitting circuit respectively, and is used for receiving the millimeter wave wireless charging electric signal transmitted by the millimeter wave wireless charging transmitting circuit and the millimeter wave communication signal transmitted by the millimeter wave communication transmitting circuit, synthesizing the millimeter wave wireless charging electric signal and the millimeter wave communication signal into a millimeter wave signal, and transmitting the millimeter wave signal to the duplexer.
In one embodiment, the millimeter wave communication signals include: charging power and millimeter wave beam forming parameters.
In one embodiment, the millimeter wave rectification circuit comprises a first intermediate frequency conversion module and an intermediate frequency rectification circuit; wherein:
the first intermediate frequency conversion module is respectively electrically connected with the millimeter wave module and the intermediate frequency rectification circuit and is used for converting the received millimeter wave wireless charging signal into an intermediate frequency signal and transmitting the intermediate frequency signal to the intermediate frequency rectification circuit;
the intermediate frequency rectifying circuit is used for receiving the intermediate frequency signal and rectifying the intermediate frequency signal into a direct current signal.
In an embodiment, the millimeter wave rectification circuit includes a rectifier diode, and the rectifier diode is electrically connected to the millimeter wave module and the charging control circuit, respectively, and is configured to rectify the received millimeter wave signal.
In one embodiment, the millimeter wave wireless charging transmitting circuit comprises a signal generator, a power amplifier and a second intermediate frequency conversion module which are electrically connected in sequence.
In an embodiment, the millimeter wave antenna array comprises at least one antenna element.
In one embodiment, the antenna unit is one or more of a patch antenna, a dipole antenna, a monopole antenna and a yagi antenna.
A terminal comprises the wireless charging device.
The wireless charging device and the terminal provided by the embodiment of the application comprise a millimeter wave module, a millimeter wave rectifying circuit, a charging control circuit, a millimeter wave communication receiving circuit and a millimeter wave communication transmitting circuit; wherein: the millimeter wave module is respectively electrically connected with the millimeter wave rectifying circuit and the millimeter wave communication receiving circuit and used for receiving millimeter wave signals, dividing the millimeter wave signals into millimeter wave wireless charging signals and millimeter wave communication signals according to the frequency of the millimeter wave signals, transmitting the millimeter wave wireless charging signals to the millimeter wave rectifying circuit and transmitting the millimeter wave communication signals to the millimeter wave communication receiving circuit so as to enable the millimeter wave communication receiving circuit to communicate with external equipment; the millimeter wave rectifying circuit is used for receiving the millimeter wave wireless charging signal and rectifying the millimeter wave wireless charging signal into a direct current signal; the charging control circuit is electrically connected with the millimeter wave rectifying circuit and used for controlling a charging function and receiving and storing the direct current signal; the millimeter wave communication transmitting circuit is electrically connected with the millimeter wave module and used for sending a millimeter wave communication signal to the millimeter wave module so that the millimeter wave module radiates the millimeter wave communication signal outwards to communicate with external equipment. The wireless charging device wirelessly charges through millimeter waves, and can realize remote charging. In addition, the wireless charging device provided by the application adopts a frequency division working principle, so that the wireless charging device can simultaneously 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 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 millimeter wave rectification circuit 120, a charging control circuit 130, a millimeter wave communication receiving circuit 140, and a millimeter wave communication transmitting circuit 150; wherein:
the millimeter wave module 110 is electrically connected to the millimeter wave rectifying circuit 120 and the millimeter wave communication receiving circuit 140, and is configured to receive a millimeter wave signal, divide the millimeter wave signal into a millimeter wave wireless charging signal and a millimeter wave communication signal according to the frequency of the millimeter wave signal, transmit the millimeter wave wireless charging signal to the millimeter wave rectifying circuit 120, and transmit the millimeter wave communication signal to the millimeter wave communication receiving circuit 140, so that the millimeter wave communication receiving circuit 140 communicates with an external device;
the millimeter wave rectifying circuit 120 is configured to receive the millimeter wave wireless charging signal and rectify the millimeter wave wireless charging signal into a direct current signal;
the charging control circuit 130 is electrically connected with the millimeter wave rectification circuit 120, and is used for controlling the charging function, receiving and storing the direct current signal;
the millimeter-wave communication transmitting circuit 150 is electrically connected to the millimeter-wave module 110, and is configured to send a millimeter-wave communication signal to the millimeter-wave module 110, so that the millimeter-wave module 110 radiates the millimeter-wave communication signal to communicate with an external device.
The millimeter wave rectifying circuit 120 rectifies the millimeter wave signal into a dc signal and supplies the dc signal to the charge control circuit 130. In an embodiment, the millimeter wave rectification circuit 120 includes a rectifier diode, and the rectifier diode is electrically connected to the millimeter wave module 110 and the charging control circuit 130, respectively, and is used for rectifying the received millimeter wave signal. The millimeter wave rectification circuit 120 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 rectifying circuit 120 firstly performs filtering processing on the millimeter wave wireless charging signal through the filter, and then performs rectifying 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 120 may also be in other circuit forms, and the specific circuit composition of the millimeter wave rectification circuit 120 in this embodiment is only an example, and the specific circuit form of the millimeter wave rectification circuit 120 is not limited.
In one embodiment, the millimeter wave communication receiving circuit 140 includes a low noise amplifier, a feeder line, an intermediate frequency module, an analog-to-digital conversion module, and the like. The 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. 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. It should be noted that the millimeter wave communication receiving circuit 140 may also be in other circuit forms, and the specific circuit composition of the millimeter wave communication receiving circuit 140 in this embodiment is merely an example, and the specific circuit form of the millimeter wave communication receiving circuit 140 is not limited.
The millimeter wave communication transmitting circuit 150 is configured to transmit a millimeter wave communication signal to the millimeter wave module 110, so that the millimeter wave module 110 radiates the millimeter wave communication signal to the outside to communicate with an external device, where the external device includes a wireless charging device. In one embodiment, the millimeter-wave communication signals include: charging power and millimeter wave beam forming parameters. The millimeter wave communication transmitting circuit 150 transmits a millimeter wave signal and then communicates with an external device through the millimeter wave module 110, and is responsible for completing negotiation of charging power, beam transmitting direction and corresponding beam forming with the external device (charging target or charging party), so that the external device can perform a wireless charging process for a terminal where the wireless charging device provided in this embodiment is located.
In one embodiment, the millimeter wave communication transmitting circuit 150 includes a power amplifier, an intermediate frequency module, a baseband module, and the like. Wherein, the intermediate frequency module can be multiplexed with the intermediate frequency module in the millimeter wave communication receiving circuit 140.
It should be noted that the millimeter wave communication transmitting circuit 150 may also be in other circuit forms, and the specific circuit composition of the millimeter wave communication transmitting circuit 150 in this embodiment is merely an example, and the specific circuit form of the millimeter wave communication transmitting 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, the wireless charging device provided by the application adopts a frequency division working principle, and integrates millimeter wave wireless charging and communication functions together, so that the wireless charging device can simultaneously perform wireless charging and communication functions.
In one embodiment, as shown in fig. 3, the mm-wave module 110 includes a mm-wave antenna array 111, a duplexer 112, and a filter 113; 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 filter 113, and the millimeter wave communication transmitting circuit 150, and is configured to send the millimeter wave signal received by the millimeter wave antenna array 111 to the filter 113, and send the millimeter wave signal transmitted by the millimeter wave communication transmitting circuit 150 to the millimeter wave antenna array 111;
the filter 113 is electrically connected to the millimeter wave rectifying circuit 120 and the millimeter wave communication receiving circuit 140, and is configured to divide the millimeter wave signal into a millimeter wave wireless charging signal and a millimeter wave communication signal according to the frequency of the millimeter wave signal, transmit the millimeter wave wireless charging signal to the millimeter wave rectifying circuit 120, and transmit the millimeter wave communication signal to the millimeter wave communication receiving circuit 140.
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 113 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 filter 113, and may send the millimeter-wave signal transmitted by the millimeter-wave communication transmitting circuit 150 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.
After receiving the millimeter wave signal, the filter 113 may output a millimeter wave signal with different frequencies to the millimeter wave rectification circuit 120 and the millimeter wave communication receiving circuit 140, so as to implement the frequency division working principle.
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.
In one embodiment, as shown in fig. 4, the wireless charging device further includes a combiner 160 and a millimeter wave wireless charging transmitting circuit 170; wherein:
the millimeter wave wireless charging transmitting circuit 170 is electrically connected to the charging control circuit 130, and is configured to transmit a millimeter wave wireless charging electrical signal to the combiner 160 according to control of the charging control circuit 130;
the combiner 160 is electrically connected to the duplexer 112, the millimeter wave wireless charging transmitting circuit 170 and the millimeter wave communication transmitting circuit 150, and is configured to receive the millimeter wave wireless charging electrical signal transmitted by the millimeter wave wireless charging transmitting circuit 170 and the millimeter wave communication signal transmitted by the millimeter wave communication transmitting circuit 150, and synthesize the millimeter wave wireless charging electrical signal and the millimeter wave communication signal into a millimeter wave signal, which is sent to the duplexer 112.
The combiner 160 may be a device that allows multiple transmitters (or multiple receivers) to share a single transmit antenna (or receive antenna). If there is antenna multiplexing, the combiner 160 may combine two signals into one signal and then electrically connect the signal to the antenna. In this embodiment, the combiner 160 combines the millimeter-wave wireless charging electrical signal and the millimeter-wave communication signal into a millimeter-wave signal, and sends the millimeter-wave signal to the duplexer 112.
The millimeter wave wireless charging transmitting circuit 170 is configured to transmit a millimeter wave wireless charging signal, and the millimeter wave wireless charging transmitting circuit 170 includes a signal generator, a power amplifier, and an intermediate frequency module, which are electrically connected in sequence. The signal generator is used for generating millimeter wave wireless charging signals, the power amplifier is used for performing power amplification on the signals, and the intermediate frequency module is used for converting the signals into intermediate frequency signals. The intermediate frequency module in the millimeter wave wireless charging transmitting circuit 170 may be multiplexed with the intermediate frequency module in the millimeter wave communication transmitting circuit 150; the power amplifier in millimeter wave wireless charging transmission circuit 170 may be multiplexed with the power amplifier in millimeter wave communication transmission circuit 150.
The charging control circuit 130 sends a control instruction to the millimeter wave wireless charging transmitting circuit 170 to instruct the millimeter wave wireless charging transmitting circuit 170 to transmit a millimeter wave wireless charging signal in a preset direction, and the transmitted wireless charging signal is radiated to an external device through the millimeter wave module 110 to supply power to the external device.
It should be noted that the millimeter wave wireless charging transmitting circuit 170 may also be in other circuit forms, and the specific circuit composition of the millimeter wave wireless charging transmitting circuit 170 in this embodiment is only an example, and the specific circuit form of the millimeter wave wireless charging transmitting circuit 170 is not limited.
In one embodiment, as shown in fig. 5, the millimeter wave rectification circuit 120 includes a first intermediate frequency conversion module 121 and an intermediate frequency rectification circuit 122; wherein:
the first intermediate frequency conversion module 121 is electrically connected to the millimeter wave module 110 and the intermediate frequency rectification circuit 122, respectively, and is configured to convert the received millimeter wave wireless charging signal into an intermediate frequency signal, and transmit the intermediate frequency signal to the intermediate frequency rectification circuit 122.
The intermediate frequency rectifying circuit 122 is configured to receive the intermediate frequency signal and rectify the intermediate frequency signal into a direct current signal.
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 carry out rectification processing on the high-frequency millimeter wave signal, and this embodiment adds an intermediate frequency module, and accordingly the millimeter wave rectification circuit 120 can replace the intermediate frequency rectification circuit 122. The intermediate frequency module is used for performing intermediate frequency conversion processing on the high-frequency millimeter wave signal so as to output an intermediate-frequency millimeter wave signal. The intermediate frequency rectifying circuit 122 rectifies the intermediate frequency millimeter wave signal, which is easy to realize and has a good effect.
A terminal includes a wireless charging device. The wireless charging device comprises a millimeter wave module, a millimeter wave rectifying circuit, a charging control circuit, a millimeter wave communication receiving circuit and a millimeter wave communication transmitting circuit; wherein:
the millimeter wave module is respectively electrically connected with the millimeter wave rectifying circuit and the millimeter wave communication receiving circuit and used for receiving millimeter wave signals, dividing the millimeter wave signals into millimeter wave wireless charging signals and millimeter wave communication signals according to the frequency of the millimeter wave signals, transmitting the millimeter wave wireless charging signals to the millimeter wave rectifying circuit and transmitting the millimeter wave communication signals to the millimeter wave communication receiving circuit so as to enable the millimeter wave communication receiving circuit to be communicated with external equipment;
the millimeter wave rectifying circuit is used for receiving the millimeter wave wireless charging signal and rectifying the millimeter wave wireless charging signal into a direct current signal;
the charging control circuit is electrically connected with the millimeter wave rectifying circuit and used for controlling the charging function and receiving and storing the direct current signal;
the millimeter wave communication transmitting circuit is electrically connected with the millimeter wave module and used for sending a millimeter wave communication signal to the millimeter wave module so that the millimeter wave module radiates the millimeter wave communication signal outwards to communicate with external equipment.
In one embodiment, the millimeter wave module comprises a millimeter wave antenna array, a duplexer and a filter; wherein:
the millimeter wave antenna array is used for receiving and transmitting millimeter wave signals:
the duplexer is respectively electrically connected with the millimeter wave antenna array, the filter and the millimeter wave communication transmitting circuit, and is used for sending the millimeter wave signals received by the millimeter wave antenna array to the filter and sending the millimeter wave signals transmitted by the millimeter wave communication transmitting circuit to the millimeter wave antenna array;
the filter is electrically connected with the millimeter wave rectifying circuit and the millimeter wave communication receiving circuit respectively and is used for dividing the millimeter wave signals into millimeter wave wireless charging signals and millimeter wave communication signals according to the frequency of the millimeter wave signals, transmitting the millimeter wave wireless charging signals to the millimeter wave rectifying circuit and transmitting the millimeter wave communication signals to the millimeter wave communication receiving circuit.
In one embodiment, the device further comprises a combiner and a millimeter wave wireless charging transmitting circuit;
the millimeter wave wireless charging transmitting circuit is electrically connected with the charging control circuit and used for transmitting a millimeter wave wireless charging signal to the combiner according to the control of the charging control circuit;
the combiner is electrically connected with the duplexer, the millimeter wave wireless charging transmitting circuit and the millimeter wave communication transmitting circuit respectively, and is used for receiving the millimeter wave wireless charging electric signal transmitted by the millimeter wave wireless charging transmitting circuit and the millimeter wave communication signal transmitted by the millimeter wave communication transmitting circuit, synthesizing the millimeter wave wireless charging electric signal and the millimeter wave communication signal into a millimeter wave signal, and sending the millimeter wave signal to the duplexer.
In one embodiment, the millimeter-wave communication signals include: charging power and millimeter wave beam forming parameters.
In one embodiment, the millimeter wave rectification circuit comprises a first intermediate frequency conversion module and an intermediate frequency rectification circuit; wherein:
the first intermediate frequency conversion module is electrically connected with the millimeter wave module and the intermediate frequency rectification circuit respectively and is used for converting the received millimeter wave wireless charging signal into an intermediate frequency signal and transmitting the intermediate frequency signal to the intermediate frequency rectification circuit;
the intermediate frequency rectifying circuit is used for receiving the intermediate frequency signal and rectifying the intermediate frequency signal into a direct current signal.
In an embodiment, the millimeter wave rectification circuit includes a rectifier diode, and the rectifier diode is electrically connected to the millimeter wave module and the charging control circuit, respectively, and is configured to rectify the received millimeter wave signal.
In one embodiment, the millimeter wave wireless charging transmitting circuit comprises a signal generator, a power amplifier and a second intermediate frequency conversion module which are electrically connected in sequence.
In one embodiment, the millimeter wave antenna array includes at least one antenna element.
In one embodiment, the antenna unit is one or more of a patch antenna, a dipole antenna, a monopole antenna and a yagi antenna.
The wireless charging device integrates millimeter wave wireless charging and communication functions by adopting a frequency division working principle, so that a terminal provided with the wireless charging device can simultaneously perform the wireless charging and communication functions.
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 (10)
1. A wireless charging device is characterized by comprising a millimeter wave module, a millimeter wave rectifying circuit, a charging control circuit, a millimeter wave communication receiving circuit and a millimeter wave communication transmitting circuit; wherein:
the millimeter wave module is respectively electrically connected with the millimeter wave rectifying circuit and the millimeter wave communication receiving circuit and used for receiving millimeter wave signals, dividing the millimeter wave signals into millimeter wave wireless charging signals and millimeter wave communication signals according to the frequency of the millimeter wave signals, transmitting the millimeter wave wireless charging signals to the millimeter wave rectifying circuit and transmitting the millimeter wave communication signals to the millimeter wave communication receiving circuit;
the millimeter wave rectifying circuit is used for receiving the millimeter wave wireless charging signal and rectifying the millimeter wave wireless charging signal into a direct current signal;
the charging control circuit is electrically connected with the millimeter wave rectifying circuit and used for controlling a charging function and receiving and storing the direct current signal;
the millimeter wave communication transmitting circuit is electrically connected with the millimeter wave module and used for sending a millimeter wave communication signal to the millimeter wave module so that the millimeter wave module radiates the millimeter wave communication signal outwards to communicate with external equipment.
2. The apparatus of claim 1, wherein the millimeter wave module comprises a millimeter wave antenna array, a duplexer, and a filter; 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 filter and the millimeter wave communication transmitting circuit, and is used for sending millimeter wave signals received by the millimeter wave antenna array to the filter and sending millimeter wave signals transmitted by the millimeter wave communication transmitting circuit to the millimeter wave antenna array;
the filter is electrically connected with the millimeter wave rectifying circuit and the millimeter wave communication receiving circuit respectively and is used for dividing the millimeter wave signals into millimeter wave wireless charging signals and millimeter wave communication signals according to the frequency of the millimeter wave signals, transmitting the millimeter wave wireless charging signals to the millimeter wave rectifying circuit and transmitting the millimeter wave communication signals to the millimeter wave communication receiving circuit.
3. The apparatus of claim 2, further comprising a combiner and a millimeter wave wireless charging transmit circuit;
the millimeter wave wireless charging transmitting circuit is electrically connected with the charging control circuit and is used for transmitting a millimeter wave wireless charging signal to the combiner according to the control of the charging control circuit;
the combiner is electrically connected with the duplexer, the millimeter wave wireless charging transmitting circuit and the millimeter wave communication transmitting circuit respectively, and is used for receiving the millimeter wave wireless charging electric signal transmitted by the millimeter wave wireless charging transmitting circuit and the millimeter wave communication signal transmitted by the millimeter wave communication transmitting circuit, synthesizing the millimeter wave wireless charging electric signal and the millimeter wave communication signal into a millimeter wave signal, and transmitting the millimeter wave signal to the duplexer.
4. The apparatus of claim 3, wherein the millimeter-wave communication signals comprise: charging power and millimeter wave beam forming parameters.
5. The apparatus according to any one of claims 1 to 4, wherein the millimeter wave rectification circuit comprises a first intermediate frequency conversion module and an intermediate frequency rectification circuit; wherein:
the first intermediate frequency conversion module is respectively electrically connected with the millimeter wave module and the intermediate frequency rectification circuit and is used for converting the received millimeter wave wireless charging signal into an intermediate frequency signal and transmitting the intermediate frequency signal to the intermediate frequency rectification circuit;
the intermediate frequency rectifying circuit is used for receiving the intermediate frequency signal and rectifying the intermediate frequency signal into a direct current signal.
6. The device of claim 1, wherein the millimeter wave rectification circuit comprises a rectifier diode, and the rectifier diode is electrically connected to the millimeter wave module and the charge control circuit, respectively, and is configured to rectify the received millimeter wave signal.
7. The device of claim 1, wherein the millimeter wave wireless charging transmission circuit comprises a signal generator, a power amplifier and a second intermediate frequency conversion module which are electrically connected in sequence.
8. The apparatus of claim 1, wherein the array of millimeter wave antennas comprises at least one antenna element.
9. The apparatus of claim 8, wherein the antenna unit is one or more of a patch antenna, a dipole antenna, a monopole antenna, and a yagi antenna.
10. A terminal, characterized in that it comprises a wireless charging device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113852705A (en) * | 2021-09-22 | 2021-12-28 | 联想(北京)有限公司 | Electronic equipment and control method |
| CN114189267A (en) * | 2021-11-22 | 2022-03-15 | 上海影创信息科技有限公司 | Air-spaced charging system and method based on 5G base station millimeter wave beam forming |
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2019
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113852705A (en) * | 2021-09-22 | 2021-12-28 | 联想(北京)有限公司 | Electronic equipment and control method |
| US20230091479A1 (en) * | 2021-09-22 | 2023-03-23 | Lenovo (Beijing) Limited | Electronic device 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 |
| CN114189267A (en) * | 2021-11-22 | 2022-03-15 | 上海影创信息科技有限公司 | Air-spaced charging system and method based on 5G base station millimeter wave beam forming |
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