Wireless charging device and method, electronic device, and storage medium

Abstract

The present disclosure provides a wireless charging device, which includes a charging module carrier and a plurality of wireless charging modules. The wireless charging module includes a positioning sub-module and a charging sub-module. The charging sub-module includes at least one wireless charging receiving antenna. The positioning sub-module is configured to identify the position of the wireless charging transmitting device. The plurality of wireless charging modules are respectively provided at a plurality of mounting positions of the charging module carrier. After identifying the position of the wireless charging transmitting device, the positioning sub-module is further configured to transmit the position information of each wireless charging receiving antenna to the wireless charging transmitting device. The present disclosure further provides a method for controlling the wireless charging device, an electronic device, and a computer-readable storage medium.

Description

[Technical Field]

[0001] [CROSS-REFERENCE TO RELATED APPLICATIONS] This disclosure is based on and claims priority to Chinese patent application CN202210663259.9, filed on June 13, 2022, entitled "Wireless charging device and method, electronic device, and storage medium," the entire disclosure of which is incorporated herein by reference.

[0002] [Technical field] The present disclosure relates to the field of wireless charging, and in particular to a wireless charging device, a method for controlling the wireless charging device, an electronic device including the wireless charging device, and a computer-readable storage medium. [Background technology]

[0003] With the development of microelectronics technology and communications, wireless charging technology has been applied to many electronic devices. For example, for a mobile phone terminal, a wireless charging receiving antenna can be installed in the mobile phone terminal, and a wireless charging transmitting device can provide a wireless charging signal to the wireless charging receiving antenna, thereby realizing charging of the mobile phone terminal. However, the current wireless charging technology based on radio frequency antenna transmission and reception has a problem of low charging efficiency. Summary of the Invention [Problem to be solved by the invention]

[0004] The present disclosure aims to provide a wireless charging device, a method for controlling the wireless charging device, an electronic device including the wireless charging device, and a computer-readable storage medium. [Means for solving the problem]

[0005] As a first aspect of the present disclosure, a wireless charging device is provided, which includes a charging module carrier and a plurality of wireless charging modules, the wireless charging module includes a positioning sub-module and a charging sub-module, the charging sub-module includes at least one wireless charging receiving antenna, the positioning sub-module is configured to identify the position of a wireless charging transmitting device, the plurality of wireless charging modules are respectively provided at a plurality of mounting positions of the charging module carrier, and the positioning sub-module is further configured to, after identifying the position of the wireless charging transmitting device, transmit position information of each of the wireless charging receiving antennas to the wireless charging transmitting device.

[0006] As a second aspect of the present disclosure, there is provided a method for controlling a wireless charging device, the wireless charging device being the wireless charging device according to the first aspect of the present disclosure, the method comprising: determining, by each positioning sub-module, the position information of the wireless charging transmitting device; transmitting position information of the wireless charging receiving antenna of each charging sub-module to the wireless charging transmitting device by the positioning sub-module; The method further includes performing beam training on at least one wireless charging receiving antenna to achieve beam pairing between a corresponding wireless charging receiving antenna and the wireless charging transmitting device.

[0007] According to a third aspect of the present disclosure, there is provided an electronic device including a wireless charging device, a processor, and a storage module, the wireless charging device being the wireless charging device according to the first aspect of the present disclosure, and an executable program being stored in the storage module; When the processor invokes the executable program, it can execute the method according to the second aspect of the present disclosure.

[0008] As a fourth aspect of the present disclosure, a computer-readable storage medium is provided, the computer-readable storage medium storing an executable program, and when the executable program is invoked, the method according to the second aspect of the present disclosure can be realized. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a schematic diagram of one embodiment of a wireless charging device according to the present disclosure. [Figure 2] 1 is a module schematic diagram of one embodiment of a wireless charging device according to the present disclosure. FIG. [Figure 3] FIG. 2 is a schematic diagram of one embodiment of a first rectifier circuit according to the present disclosure. [Figure 4] FIG. 2 is a schematic diagram of a beacon antenna. [Figure 5] FIG. 1 is a schematic diagram of a wireless charging module. [Figure 6] 10 is a flowchart for determining a wireless charging transmission device to be used for charging in a scene where there are multiple wireless charging transmission devices. [Figure 7] 1 is a schematic diagram of an embodiment in which multiple beacon antennas select multiple wireless charging transmitters; [Figure 8] 1 is a schematic diagram of one embodiment of a method according to the present disclosure. [Figure 9] FIG. 2 is a schematic diagram of another embodiment of a method according to the present disclosure. [Figure 10] 1 is a schematic diagram of an embodiment of an electronic device according to the present disclosure. [Figure 11] FIG. 1 is a schematic diagram illustrating charging an electronic device using multiple millimeter wave charging stations according to the present disclosure. [Figure 12] 1 is a schematic diagram of an electronic device having a wireless charging transmitting antenna being charged and charging another electronic device. DETAILED DESCRIPTION OF THE INVENTION

[0010] In order to enable those skilled in the art to better understand the technical solutions of the present disclosure, the following provides a detailed description of a wireless charging device, a method for controlling the wireless charging device, an electronic device including the wireless charging device, and a computer-readable storage medium according to the present disclosure, with reference to the accompanying drawings.

[0011] The following examples are more fully described with reference to the drawings, but the illustrative examples may be embodied in different forms and are not limited to the examples set forth herein. Rather, the purpose of providing these examples is so that this disclosure will be clear and complete, and that those skilled in the art will fully appreciate the scope of the disclosure.

[0012] Unless contradictory, each embodiment and each feature in each embodiment of the present disclosure can be combined with each other.

[0013] As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0014] The terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the disclosure. As used herein, the singular forms "a," "an," and "the" are intended to include the plural unless the context clearly dictates otherwise. It will be further understood that the use of the terms "comprising" and / or "made from" herein specifies the presence of said features, wholes, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components, and / or groups thereof.

[0015] Unless otherwise specified, the meaning of all terms (including technical and scientific terms) used herein is the same as that commonly understood by those skilled in the art. It is further understood that, unless expressly limited herein, those terms, for example, those limited to their common dictionary definitions, should be interpreted as having a meaning consistent with the relevant art and meaning in the context of this disclosure, and not as having an ideal or excessively formal meaning.

[0016] As a first aspect of the present disclosure, a wireless charging device is provided, and as shown in FIG. 1, the wireless charging device includes a charging module carrier 100 and a plurality of wireless charging modules 200, the wireless charging module 200 includes a positioning sub-module 210 and a charging sub-module 220, the charging sub-module 220 includes at least one wireless charging receiving antenna, the positioning sub-module 210 determines the position of the wireless charging transmitting device 300, the plurality of wireless charging modules 200 are respectively installed at a plurality of mounting positions of the charging module carrier 100, and the positioning sub-module 210 transmits the position information of each charging sub-module 220.

[0017] In the present disclosure, the wireless charging receiving antenna may be a millimeter wave antenna or any other type of antenna as long as it can realize wireless charging.

[0018] The charging module carrier 100 of the charging device is installed in an electronic device including the charging device. The charging module carrier 100 must be made of a non-shielding material. In a preferred embodiment, the charging module carrier 100 may be part of the rear case of the electronic device.

[0019] Since multiple positioning sub-modules 210 are respectively provided at different positions on the charging module carrier 100, each positioning sub-module 210 can communicate with the wireless charging transmitter 300, and can quickly and accurately determine the position of the wireless charging transmitter 300.

[0020] After determining the position of the wireless charging transmitter 300, the position information of each charging sub-module 220 is transmitted to the wireless charging transmitter 300, thereby further determining the relative positional relationship between the wireless charging transmitter 300 and the wireless charging receiving antenna of each charging sub-module 220, and training the beam to achieve beam pairing between each wireless charging receiving antenna and the wireless charging transmitter 300. The wireless charging device according to the present disclosure uses multiple positioning sub-modules to simultaneously position the wireless charging transmitter 300, thereby achieving accurate positioning of the wireless charging transmitter 300, which in turn leads to more accurate beam pairing and improved charging efficiency.

[0021] As can be seen from the above, by providing positioning sub-modules 210 located at different positions, the efficiency and accuracy of positioning the wireless charging and transmitting device 300 can be improved, and the efficiency of charging the battery using the wireless charging device can be improved.

[0022] In addition, the wireless charging device includes multiple charging sub-modules 220, each of which can receive the wireless charging signal transmitted from the wireless charging transmitter 300 and convert it into electrical energy, thereby further improving the efficiency of charging the battery using the wireless charging device.

[0023] The present disclosure is not particularly limited to a specific type of the charging sub-module 220. In a preferred embodiment, different charging sub-modules 220 may be wireless charging receiving antennas of different frequency bands, and can be matched to wireless charging receiving antennas of different frequency bands.

[0024] The optimal beam pairing angle is related to the orientation of the wireless charging antenna, and in a preferred embodiment, the wireless charging receiving antennas in the multiple wireless charging modules have at least two different orientations, i.e., the wireless charging receiving antenna in the wireless charging device has at least two different orientations.

[0025] For wireless charging transmitting devices 300 at different positions, the beam pairing angle between at least some of the wireless charging receiving antennas and the wireless charging transmitting device is the optimal beam pairing angle or is close to the optimal beam pairing angle, so that the wireless charging transmitting device 300 can achieve relatively high charging efficiency at different positions of the wireless charging device.

[0026] As described above, the wireless charging receiving antenna according to the present disclosure may be a millimeter-wave antenna. In the case of a millimeter-wave antenna, the antenna size is proportional to the signal wavelength. In the wireless charging device according to the present disclosure, the multiple wireless charging receiving antennas are not integrally connected but are distributed across the charging module carrier 100, which not only allows for efficient use of space in an electronic device including the wireless charging device but also increases the overall size of the wireless charging receiving antennas.

[0027] As described above, the wireless charging transmitter transmits millimeter waves. The millimeter wave frequency band range is wide, and the frequency bands of wireless charging transmitters vary, including Ku band, K band, and Ka band. The C band, which belongs to the Industrial Scientific Medical (ISM) band, may also be included in the commonly used wireless charging band range. Accordingly, different wireless charging antennas of a wireless charging device can use different frequency bands, improving the adaptability of the wireless charging device. As shown in FIG. 10 , wireless charging receiving antennas in different frequency bands can be compatible with millimeter-wave wireless charging transmitters 300 of different frequency bands, effectively improving the flexibility of the wireless charging device. This configuration allows the wireless charging device to operate in environmental scenarios where millimeter-wave charging devices of different frequency bands are used, and electronic devices can be charged using millimeter-wave wireless charging devices of different frequency bands.

[0028] In the present disclosure, the specific structure of the wireless charging receiving antenna is not particularly limited. In a preferred embodiment, the wireless charging receiving antenna includes an array in which a plurality of first antenna array elements are arranged. The orientation of the wireless charging receiving antenna may be the orientation of the first antenna array element in the array.

[0029] In a preferred embodiment, the charging sub-module 220 includes multiple wireless charging receiving antennas, where the first antenna array element of the same wireless charging receiving antenna has the same orientation, and the first antenna array element of different wireless charging receiving antennas has different orientations. For example, the same charging sub-module may include a wireless charging receiving antenna facing a first direction (i.e., the first antenna array element of the wireless charging antenna faces the first direction), a wireless charging receiving antenna facing a second direction (i.e., the first antenna array element of the wireless charging antenna faces the second direction), and a wireless charging receiving antenna facing a third direction (i.e., the first antenna array element of the wireless charging antenna faces the third direction).

[0030] In the present disclosure, the position information of the wireless charging receiving antenna is not particularly limited. For example, the position information of the wireless charging antenna may include absolute position information of the wireless charging device, or may be relative position distribution information among multiple wireless charging receiving antennas. To quickly determine the position information of the wireless charging receiving antenna, in this embodiment, the position information of the wireless charging receiving antenna includes relative position distribution information among the multiple wireless charging receiving antennas. After the relative position distribution information among the multiple wireless charging receiving antennas is transmitted to the wireless charging transmitting device 300, it is advantageous for the wireless charging transmitting device to achieve rough alignment of all the wireless charging receiving antennas.

[0031] When the electronic device equipped with the wireless charging device is a display device (e.g., a mobile phone or a tablet computer), the orientation of the display surface is referred to as "forward-facing," the direction opposite to the orientation of the display surface is referred to as "rear-facing" (or "direct rear-facing"), the direction perpendicular to the display surface is referred to as "landscape," and the direction between "rear-facing" and "landscape" is referred to as "diagonal-backward." In such an embodiment, the same charging sub-module may include a rear-facing wireless charging receiving antenna, a landscape-facing wireless charging receiving antenna, and a diagonal-backward wireless charging receiving antenna. When the display device has a frame, the wireless charging device may further include a front-facing wireless charging receiving antenna.

[0032] In a preferred embodiment, in the wireless charging receiving antenna, the first antenna array elements facing the same direction may be arranged as a uniform planar array (UPA), that is, the same wireless charging receiving antenna may include multiple uniform planar arrays.

[0033] Wireless charging transmitters are usually concentrated in a specific area. For example, multiple wireless charging transmitters are installed in a specific charging area. In the present disclosure, each wireless charging antenna may be a massive multiple-in multiple-out (massive MIMO) antenna. Therefore, in the wireless charging device of the present disclosure, signal energy can be concentrated in space into an extremely narrow beam and accurately directed to multiple wireless charging transmitters (e.g., millimeter-wave wireless charging transmitters), maximizing the propagation distance in that direction and thereby improving overall charging efficiency.

[0034] For example, one wireless charging receiving antenna may be a massive MIMO antenna including 128 first antenna array elements. When performing wireless charging, the beam pattern of the corresponding base station can form eight narrow beams at eight angles facing the wireless charging device. Within the -30° to 0° range, even closely spaced millimeter-wave wireless charging transmitting and receiving beam pairs can be accurately distinguished. In an embodiment including multiple charging sub-modules, millimeter-wave wireless charging beam pairs can be generated at more azimuth angles. In an environment equipped with a millimeter-wave intelligent reflective surface (RIS), it is more advantageous to align the millimeter-wave wireless charging transmitting and receiving beam pairs, improving charging efficiency.

[0035] In the present disclosure, the distributed wireless charging antennas are arranged as multi-directional scanning beams, and the arrays consisting of different first antenna array elements have different orientations, so that even if an electronic device (e.g., a mobile phone) including the wireless charging device is interfered with in a specific direction during use, there is still a wireless charging receiving antenna that can perform wireless charging, thereby maximally ensuring that wireless charging will not be interrupted.

[0036] In a preferred embodiment, the arrangement of the first antenna array elements in different charging sub-modules is the same. For example, each charging sub-module may include a wireless charging receiving antenna facing a first direction, a wireless charging receiving antenna facing a second direction, and a wireless charging receiving antenna facing a third direction. When performing beam training, wireless charging receiving antennas facing the same direction are trained together, thereby improving training efficiency.

[0037] In the present disclosure, the wireless charging receiving antenna receives a charging signal (e.g., a millimeter-wave signal) transmitted from the wireless charging transmitting device 300, and then directly rectifies and equalizes the charging signal to obtain a DC signal. The wireless charging device can then use the converted current to charge the power source of the electronic device. To facilitate supplying current to the power source of the electronic device, as shown in FIG. 2 , the charging sub-module 220 preferably further includes a plurality of first rectifier circuits 222. In the same charging sub-module 220, the plurality of first rectifier circuits 222 correspond one-to-one to the plurality of wireless charging receiving antennas 221, and the first rectifier circuits 222 are electrically connected to the corresponding wireless charging receiving antennas 221. That is, in the wireless charging device, the plurality of first rectifier circuits 222 are connected in parallel.

[0038] In the present disclosure, the specific structure of the first rectifier circuit is not particularly limited. As shown in Fig. 3, the first rectifier circuit 222 may include a low / band-pass filter 222a, a rectifier diode, and a through filter 222b. In such an embodiment, the wireless charging receiving antenna 221 and the first rectifier circuit 222 are highly integrated, the core device of the first rectifier circuit 222 is the rectifier diode, the low / band-pass filter 222a reflects harmonics generated by the rectifier diode, and the through filter 222b allows only DC current to flow.

[0039] Of course, the present disclosure is not limited thereto, and the charging signal received by the wireless charging receiving antenna may be down-converted to an intermediate frequency, and then rectified and equalized to finally form a DC signal. That is, the charging sub-module may further include a frequency down-conversion unit electrically connected between the wireless charging receiving antenna and the first rectification circuit, and the frequency down-conversion unit down-converts the charging signal received by the wireless charging receiving antenna to an intermediate frequency.

[0040] To further facilitate charging the power source (eg, battery 600) of the electronic device, the wireless charging device further includes a centralized charging management circuit 400 and a plurality of DC aggregation circuits 500.

[0041] The multiple wireless charging modules 200 correspond one-to-one to the multiple DC aggregation circuits 500, and the input terminal of the DC aggregation circuit 500 is electrically connected to the first rectifier circuit 222 of the corresponding wireless charging module 200, and the output terminal of the DC aggregation circuit 500 is electrically connected to the input terminal of the centralized charging management circuit 400.

[0042] The centralized charge management circuit 400 rectifies the received electrical signal and outputs a charging current that meets predetermined conditions.

[0043] The output terminal of the centralized charge management circuit 400 is electrically connected to the battery 600 so that the battery 600 can be charged.

[0044] In addition to DC aggregation, another important function of the DC aggregation circuit is to perform coordinated equalization of charging signals (current or voltage) during the wireless charging process, particularly for constant current and constant voltage stages, to ensure smooth and stable wireless charging. Specifically, when the wireless charging module 200 includes a millimeter-wave antenna array, multiple wireless charging modules 200 form a multi-area array millimeter-wave wireless charging system. Multi-area array millimeter-wave wireless charging is prone to current / voltage fluctuations during beam switching and alignment recovery. After beam switching and alignment recovery, a positional change in a millimeter-wave antenna array can cause signal interruptions and prevent the antenna from continuing to operate, resulting in similar current / voltage fluctuations. In such cases, the DC aggregation circuits 500 of multiple millimeter-wave antenna arrays can instantly handshake and cooperate to distribute the DC aggregation current / voltage among each other, ensuring the stability of the overall charging current and voltage of the centralized charging management circuit 400. For example, when the voltage or current fluctuates due to the absence of time division of the millimeter-wave rectifier circuit that also serves as a communication function, the DC aggregation circuit 500 of the millimeter-wave antenna array performs sequential operation distribution and power distribution after millimeter-wave rectification for the millimeter-wave antenna area arrays, thereby ensuring stability in the millimeter-wave wireless charging process.

[0045] The DC concentrating circuit 500 of the millimeter-wave antenna array specifically performs current / voltage equalization through the following steps:

[0046] In step 1, the current and voltage measurements of the DC aggregation circuits 500 of each millimeter-wave antenna array are transmitted to each other through handshake equalization signals to establish an error interval, and DC aggregation is performed independently within the error interval. Parameter check conditions for the error interval can be preset. For example, the parameter check conditions may include at least one of the following parameters: control parameters of a radio frequency switch (described below), a sudden change in current and voltage of a specific rectifier circuit, etc.

[0047] In step 2, if the current / voltage measurement value of the DC aggregation circuit of an array obviously exceeds the error range, the DC aggregation circuits of another array or several arrays will immediately establish difference compensation based on the error value.

[0048] In step 3, if the compensated error value is controlled within the error range, the existing current-voltage charging mechanism is maintained for the overall charging current or voltage; if the compensation value and the error value still exceed the error range, the system processor is notified, and the system processor reduces or increases the overall charging current or charging voltage.

[0049] In the present disclosure, there is no particular limitation on how the positioning sub-module 210 positions the wireless charging transmitter 300. In a preferred embodiment, the positioning sub-module 210 includes a beacon antenna, which broadcasts a handshake message and receives a handshake success message returned from the wireless charging transmitter 300.

[0050] When the positioning sub-module 210 receives the handshake success message, it can determine the position of the wireless charging transmitter 300 based on the handshake success message. Typically, in the present disclosure, when multiple millimeter-wave array beacon antennas are present and the relative positions of the beacon antennas are determined, the distance and angle to the wireless charging transmitter 300 are calculated based on the combined handshake message information from the multiple beacon antennas to determine the position of the wireless charging transmitter 300. After determining the position of the wireless charging transmitter 300, the positioning sub-module 210 may transmit the position information of each wireless charging receiving antenna to the wireless charging transmitter 300.

[0051] In the present disclosure, the specific structure of the beacon antenna is not particularly limited, and in a preferred embodiment, the beacon antenna includes an array in which a plurality of second antenna array elements are arranged, and the second antenna array elements in the same beacon antenna have the same orientation, while the second antenna array elements in different beacon antenna arrays have different orientations.

[0052] To simplify the structure of the wireless charging device, in a preferred embodiment, the number of beacon antennas does not exceed the number of directions in which the first antenna array elements of the wireless charging receiving antenna face. That is, each beacon antenna corresponds to at least one wireless charging receiving antenna. For convenience of explanation, a wireless charging receiving antenna corresponding to a beacon antenna is referred to as a "target wireless charging receiving antenna." To provide the wireless charging transmitting device with more accurate location information of the wireless charging receiving antenna, preferably, the angle between the orientation of the beacon antenna and the orientation of the target wireless charging receiving antenna (i.e., the wireless charging receiving antenna corresponding to the beacon antenna) does not exceed a predetermined angle.

[0053] In the present disclosure, the predetermined angle is not particularly limited. For example, the predetermined angle can be selected from angles between 0 and 45°. In a preferred embodiment, the orientation of a beacon antenna is the same as the orientation of a corresponding wireless charging receiving antenna. In the present disclosure, wireless charging receiving antennas with similar orientations may share a beacon antenna. For example, a wireless charging receiving antenna facing diagonally backward may share a beacon antenna with a wireless charging receiving antenna facing sideways.

[0054] In a preferred embodiment, the number of the beacon antennas is the same as the number of directions in which the first antenna array elements in the wireless charging receiving antenna face, that is, each first antenna array element in each direction corresponds to one beacon antenna. If the wireless charging receiving antenna includes first antenna array elements in M ​​different directions, the wireless charging device also includes M beacon antennas.

[0055] For example, if a wireless charging device includes a first antenna array element facing a first direction, a first antenna array element facing a second direction, and a first antenna array element facing a third direction, the wireless device may include beacon antennas facing three directions, i.e., a beacon antenna facing the first direction, a beacon antenna facing the second direction, and a beacon antenna facing the third direction.

[0056] In another preferred embodiment, the number of the beacon antennas is less than the number of directions of the first antenna array elements in the wireless charging receiving antenna. For example, if the wireless charging receiving antenna includes first antenna array elements with M different directions, the wireless charging device includes N beacon antennas, and the N <Mである。

[0057] In the above embodiment, first antenna array elements with similar orientations share the same beacon antenna. For example, if the electronic device including the wireless charging device is a display device and the wireless charging device is provided with a rear-facing first antenna array element, a horizontal-facing first antenna array element, and a diagonally rear-facing first antenna array element (i.e., M=3), the wireless charging device may also be provided with a rear-facing beacon antenna and a horizontal-facing beacon antenna (i.e., N=2), and the diagonally rear-facing first antenna array element and the horizontal-facing first antenna array element share the same beacon antenna.

[0058] In the present disclosure, the specific number of beacon antennas is not particularly limited, and the beacon antennas can be in a low power consumption mode and perform location broadcasting, thereby reducing the number of beacon antennas and reducing the overall energy consumption of the electronic device, including the wireless charging device.

[0059] In a preferred embodiment, the second antenna array elements in the beacon antenna are arranged in the manner of a uniform linear array (ULA).

[0060] One beacon antenna may include M second antenna array elements, which are uniformly distributed in a linear array with a spacing d as shown in FIG. 4 , and the signal arrival angle is θ. The adjacent signal time difference τ can be calculated by the following equation (1): τ=d*sinθ / c (1) c is the electromagnetic wave propagation speed, 3*10 8 m / s.

[0061] The signal received by each second antenna array element is referred to as the second antenna array element numbered 0, and the signal S received by the second antenna array element numbered m is referred to as the second antenna array element numbered m. m (t) is as shown in equation (2).

[0062] S m (t)=S0(tm*τ) (2) m is an integer, where m=0, 1, . . . , M-1.

[0063] The signal y(t) received by the linear array at time t is given by equation (3). y(t)=[S0(t), S m (t),···,S M-1 (t)] (3) When a narrowband signal is received, the signal y(t) received by the linear array at time t is as shown in equation (4).

[0064] y(t)=w H α(θ)S(t) (4) w H is the beamforming weight vector, α(θ) is the steering vector at the angle of arrival θ.

[0065] Finally, beamforming is achieved by M phase interferences. In the above embodiment, the beacon antenna includes a ULA with a plurality of second antenna array elements arranged therein. Other types of beacon antennas will be described below. In these embodiments, to improve signal transmission and reception performance, the beacon antenna includes not only a single dipole array ULA but also a UPA formed by a cross array of horizontally and vertically polarized waves. That is, the beacon antenna includes a ULA with a plurality of second antenna array elements arranged therein and a uniformly spaced area array UPA with a plurality of second antenna array elements arranged therein.

[0066] In the present disclosure, the electronic device to which the wireless charging device is applied is not particularly limited. The electronic device may be a mobile communication device with 5G communication capabilities, and accordingly, the mobile communication device has a millimeter-wave communication antenna 700, and the antenna array element of the millimeter-wave communication antenna 700 has the same structure as the first antenna array element of the wireless charging receiving antenna. Therefore, in order to improve charging efficiency and simplify the structure of the wireless charging device, the millimeter-wave communication antenna 700 can preferably be multiplexed as a wireless charging receiving antenna.

[0067] Accordingly, the wireless charging module 220 may further include a second rectifier circuit 223 that selectively electrically connects the millimeter-wave communication antenna 700 to one of the communication circuit corresponding to the millimeter-wave communication antenna 700 and the second rectifier circuit 223. When the millimeter-wave communication antenna 700 is electrically connected to the communication circuit 710, the millimeter-wave communication antenna 700 can realize the data transmission function of the mobile communication terminal. When the millimeter-wave communication antenna 700 is electrically connected to the second rectifier circuit 223, the millimeter-wave communication antenna 700 is used as a wireless charging antenna.

[0068] In one preferred embodiment, the millimeter wave communication antenna 700 may be time-division multiplexed as a wireless charging receiving antenna.

[0069] In the present disclosure, there is no particular limitation on how to switch the function of the millimeter-wave communication antenna. In a preferred embodiment, the wireless charging module may further include a radio frequency switch 230, wherein a first end of the radio frequency switch 230 is electrically connected to the millimeter-wave communication antenna, a second end of the radio frequency switch 230 is electrically connected to the second rectifier circuit 223, and a third end of the radio frequency switch 230 is electrically connected to the millimeter-wave communication circuit, and when a control end of the radio frequency switch 230 receives a first control signal, the first end of the radio frequency switch 230 is electrically connected to the second end of the radio frequency switch 230, thereby electrically connecting the millimeter-wave communication antenna to the second rectifier circuit 223, and when a control end of the radio frequency switch 230 receives a second control signal, the first end of the radio frequency switch 230 is electrically connected to the third end of the radio frequency switch 230, thereby electrically connecting the millimeter-wave communication antenna to the communication circuit.

[0070] In an embodiment in which a millimeter-wave communication antenna is multiplexed as a wireless charging receiving antenna to avoid interference between the charging function and the communication function, the charging signal received by the millimeter-wave communication antenna multiplexed as a wireless charging receiving antenna may first be down-converted to an intermediate frequency and then rectified to form a DC signal. That is, the wireless charging module may further include a frequency down-converter unit electrically connected between the millimeter-wave communication antenna and the second rectifier circuit, and the frequency down-converter unit down-converts the charging signal received by the millimeter-wave communication antenna multiplexed as a wireless charging receiving antenna to an intermediate frequency.

[0071] In the embodiment shown in FIG. 2, the first rectifier circuit 222 and the second rectifier circuit 223 in the same wireless charging module 200 are electrically connected to the same DC aggregation circuit 500.

[0072] The DC aggregation circuits 500 corresponding to different wireless charging modules 200 may be electrically connected in parallel, in series, or in a combination of parallel and series connections.

[0073] In a preferred embodiment, the wireless charging device further includes at least one wireless charging signal transmitting module, which is mounted on the charging module carrier. By providing the wireless charging signal transmitting module, the wireless charging device according to the present disclosure can also have the function of charging other devices.

[0074] In the present disclosure, the specific structure of the wireless charging signal transmitting module is not particularly limited. In a preferred embodiment, the wireless charging signal transmitting module includes a wireless charging signal transmitting antenna. Preferably, the wireless charging signal transmitting antenna includes a plurality of third antenna array elements arranged in an array. Preferably, the structure of the third antenna array element is the same as that of the first antenna array element. In this way, the wireless charging signal transmitting antenna can be multiplexed as a wireless charging receiving antenna.

[0075] As shown in FIG. 11, an electronic device having a wireless charging signal transmitting antenna can be charged using a wireless charging transmitting device, and at the same time, an electronic device having a wireless charging receiving antenna can be charged.

[0076] As shown in Figure 12, if the wireless charging device has a wireless charging transmitting antenna for wireless charging transmission, the communication detection circuit needs to input the control direction parameters required for beam control. At the same time, the millimeter-wave wireless charging signal generated by the signal generator is converted into an intermediate frequency module by a pre-amplifier, and then the electric energy is converted into millimeter-wave energy by an emitter secondary amplifier and transmitted from the wireless charging transmitting antenna.

[0077] At higher millimeter-wave frequency bands, a secondary amplifier may still be insufficient and a tertiary amplifier may also be required.

[0078] In the above embodiment, an intermediate frequency module is required, and the millimeter wave communication antenna may be multiplexed as a wireless charging transmission antenna.

[0079] 5 is a schematic diagram of a wireless charging module 200. The wireless charging module 200 includes two charging sub-modules and one positioning sub-module. The first charging sub-module includes a wireless charging antenna facing straight back, and the second charging sub-module includes a wireless charging antenna facing diagonally backward. In the embodiment shown in FIG. 5, the wireless charging module 200 also includes a millimeter-wave communication antenna facing sideways.

[0080] In the embodiment shown in FIG. 5, the millimeter-wave communication antenna may be multiplexed as a wireless charging receiving antenna, and the millimeter-wave communication antenna may be used as a beacon antenna of the second charging sub-module.

[0081] The first antenna array elements of the wireless charging antenna of the first charging submodule and the second antenna array elements of the corresponding beacon antenna are arranged in the UPA. The total number of the first antenna array elements of the wireless charging antenna 221 and the second antenna array elements of the corresponding beacon antenna 211 is 144, and the first and second antenna array elements have the same structure. For convenience of explanation, the first and second antenna array elements are collectively referred to as antenna array elements. The 144 antenna array elements are arranged in four radio frequency channels, each of which includes 36 antenna array elements, with 12 antenna array elements arranged in the first arrangement direction and 3 antenna array elements arranged in the second arrangement direction. The first arrangement direction is one of the horizontal and vertical directions, and the second arrangement direction is the other of the horizontal and vertical directions. The antenna array elements in the first row arranged along the first arrangement direction are used as a beacon antenna (which may be horizontally or vertically polarized), the antenna array elements in the second row arranged along the first arrangement direction are for horizontal polarization, and the antenna array elements in the third row arranged along the first arrangement direction are for vertical polarization.

[0082] Considering the limited bandwidth, the number of first antenna array elements of the wireless charging antenna of the second charging submodule may be 48 to 128, and 24 to 64 first antenna array elements are arranged in each of the two radio frequency channels, 12 to 32 first antenna array elements are arranged in the first arrangement direction, and two first antenna array elements are arranged in the second arrangement direction, where the first antenna array elements in the first row arranged along the first arrangement direction are for horizontal polarization, and the first antenna array elements in the second row arranged along the first arrangement direction are for vertical polarization.

[0083] All antenna array elements of the millimeter-wave communication antenna are first antenna array elements, and the first antenna array elements are arranged as UPAs and use horizontal and vertical cross polarization as a whole (compared to a single row or column of horizontal or vertical polarization, horizontal and vertical cross polarization is more advantageous in terms of space saving, i.e., the same space allows for a larger total number of array elements, and the beamforming method is more flexible). The wireless charging antenna may be multiplexed as a beacon antenna of the second charging sub-module.

[0084] Of course, the present disclosure is not limited thereto. For example, the charging device may include three wireless charging receiving antennas facing directly rearward, three wireless charging receiving antennas facing three different horizontal directions, and three wireless charging receiving antennas facing diagonally rearward (a total of nine wireless charging receiving antennas). To simplify the structure, the four beacon antennas may be configured as beacon antennas corresponding to the wireless charging receiving antennas facing directly rearward, and three beacon antennas corresponding to the three horizontal directions, respectively. The three wireless charging receiving antennas facing diagonally rearward share a beacon antenna with the horizontal direction wireless charging receiving antenna that has the closest orientation angle.

[0085] The main function of the beacon antenna is to broadcast the wireless charging transmitter, which can then use rough scanning to effectively obtain the location of the wireless charging device. In the above embodiment, the three beacon antennas have significant differences in position and orientation, which is more beneficial for quickly establishing a communication handshake and positioning between the wireless charging transmitter and the wireless charging device. Furthermore, having at least three beacon antennas with significantly different orientations is also beneficial for improving the interference resistance of the millimeter-wave transmission path against obstacles, enabling a communication handshake with the wireless charging transmitter to be achieved despite the multipath caused by millimeter-wave reflection, providing reliable guarantees in both positioning robustness and accuracy.

[0086] As shown in FIG. 6, when the relative positions of the multiple millimeter-wave array beacon antennas (i.e., multiple positioning sub-modules) present in the present disclosure are determined, when multiple wireless charging transmitters are present in an application scenario, the distances and angles of the multiple wireless charging transmitters 300 can be synchronously calculated based on the coordinated handshake success information from the multiple beacon antennas, thereby realizing simultaneous positioning of the multiple wireless charging transmitters.

[0087] Then, by further traversing the wireless charging efficiency and power load information in the handshake success information of the millimeter-wave array beacon antenna and the wireless charging transmitter 300, the average wireless charging efficiency and average power load of each wireless charging transmitter 300 for each millimeter-wave array beacon antenna are calculated, and then different judgment principles are determined based on the average value statistical method of the average wireless charging efficiency and average power load, and a certain wireless charging transmitter 300 is judged and preferentially selected based on the overall average value, or several wireless charging transmitters 300 are judged and preferentially selected based on the group average value of beacon antennas in different directions, so as to realize wireless charging of electronic devices with multiple millimeter-wave array beacon antennas by one or several wireless charging transmitters 300.

[0088] After the alignment between the wireless charging transmitting device and the wireless charging device is completed, the entire group or a group in a certain direction will maintain only one beacon antenna in communication, and all other beacon antennas will be used as wireless charging receiving antennas.

[0089] As a second aspect of the present disclosure, there is provided a method for controlling a wireless charging device, wherein the wireless charging device is the wireless charging device according to the first aspect of the present disclosure, and as shown in FIG. 7, the method includes the following steps S210 to S230.

[0090] In step S210, each positioning sub-module determines the position information of the wireless charging and transmitting device.

[0091] In step S220, the positioning sub-module transmits the position information of the wireless charging receiving antenna in each charging sub-module to the wireless charging transmitting device.

[0092] In step S230, beam training is performed for each wireless charging receiving antenna so as to achieve beam pairing between each wireless charging receiving antenna and the wireless charging transmitting device.

[0093] As described above, since multiple positioning sub-modules 210 are respectively provided at different positions on the charging module carrier 100, each positioning sub-module 210 can communicate with the wireless charging transmitter 300, and the position of the wireless charging transmitter 300 can be determined quickly and accurately.

[0094] After determining the position of the wireless charging transmitter 300, the position information of each charging sub-module 220 is transmitted to the wireless charging transmitter 300, thereby further determining the relative positional relationship between the wireless charging transmitter 300 and the wireless charging receiving antenna of each charging sub-module 220, and training the beam to achieve beam pairing between each wireless charging receiving antenna and the wireless charging transmitter 300. The wireless charging device according to the present disclosure uses multiple positioning sub-modules to simultaneously position the wireless charging transmitter 300, thereby achieving accurate positioning of the wireless charging transmitter 300, which in turn leads to more accurate beam pairing and improved charging efficiency.

[0095] As can be seen from the above, by providing positioning sub-modules 210 located at different positions, the efficiency and accuracy of positioning the wireless charging and transmitting device 300 can be improved, and the efficiency of charging the battery using the wireless charging device can be improved.

[0096] In addition, the wireless charging device includes multiple charging sub-modules 220, each of which can receive the wireless charging signal transmitted from the wireless charging transmitter 300 and convert it into electrical energy, thereby further improving the efficiency of charging the battery using the wireless charging device.

[0097] The optimal beam pairing angle is related to the orientation of the wireless charging antenna, and in a preferred embodiment, the wireless charging receiving antennas in the multiple wireless charging modules have at least two different orientations, i.e., the wireless charging receiving antenna in the wireless charging device has at least two different orientations.

[0098] For wireless charging transmitting devices 300 in different positions, the beam pairing angle between at least some of the wireless charging receiving antennas and the wireless charging transmitting device is at or close to the optimal beam pairing angle, so that the wireless charging transmitting device 300 can achieve relatively high charging efficiency at different positions of the wireless charging device.

[0099] In the present disclosure, there is no particular limitation on how the positioning sub-module determines the location information of the wireless charging transmission device. As a preferred embodiment, as shown in FIG. 8, before the step of determining the location information of the wireless charging transmission device by the positioning sub-module (step S210), the method further includes the following step S202:

[0100] In step S202, each positioning sub-module sends a communication handshake message.

[0101] As mentioned above, the positioning sub-module may include a beacon antenna, and in this embodiment, the beacon antenna may broadcast the communication handshake message in a broadcast manner.

[0102] Accordingly, the step of determining the location information of the wireless charging and transmitting device by each of the positioning sub-modules (i.e., step S220) specifically includes: The method further includes determining location information of the wireless charging transmitter based on handshake success information.

[0103] When the wireless charging device includes a plurality of wireless charging receiving antennas, the position information of the wireless charging transmitting device may include a relative positional relationship between the wireless charging receiving antennas.

[0104] As described above, after the relative positional relationship between each wireless charging receiving antenna is transmitted by the positioning sub-module, it is advantageous to realize rough alignment between the wireless charging transmitting device and each wireless charging receiving antenna. Note that the "relative positional relationship between each wireless charging receiving antenna" mainly includes the position deviation value obtained based on the designed distance and angle of each wireless charging receiving antenna.

[0105] As described above, the arrangement of the first antenna array elements in different charging sub-modules is the same. That is, different charging sub-modules have wireless charging receiving antennas with the same orientation. Wireless charging antennas with the same orientation can be grouped into the same antenna group. However, the orientations of wireless charging antennas in different antenna groups are different.

[0106] In order to improve charging efficiency, step S230 of performing beam training for each wireless charging receiving antenna specifically includes: The method includes a step of performing beam training for each antenna group.

[0107] That is, in the present disclosure, wireless charging receive antennas with the same orientation are trained together. In a preferred embodiment, the same codebook is used to perform beam training for wireless charging receive antennas with the same orientation (in the present disclosure, the wireless charging receive antennas may be referred to as subarea arrays), and different codebooks are used for wireless charging receive antennas with different orientations.

[0108] The present disclosure does not limit the specific method for performing beam training. For example, a codebook and a beam training algorithm can be designed for the same antenna group to achieve wide beam high-speed access. Specifically, the codebook for beam training includes a master codebook and a secondary codebook. Beam training includes two stages: coarse training performed using the master codebook and fine training performed using the secondary codebook. Both stages are decomposed into two dimensions, the horizontal angle and the pitch angle, required for 3D beams.

[0109] After beam training is completed, beam fine-tuning adaptation can be performed for at least one wireless charging receiving antenna in the same group. For example, for the small-dimensional equivalent uniformly spaced linear array after beam training of each wireless charging receiving antenna group, a small number of pilots can be quickly estimated based on the least squares method, the mean squares method, or a machine learning method to realize beam fine-tuning adaptation for a specific wireless charging receiving antenna in the group.

[0110] After the pairing is completed, each wireless charging receiving antenna can dynamically track its channel gain and beam angle based on the predictive dynamic filtering principle.

[0111] In some cases, multiple wireless charging transmitters are provided, and each of the wireless charging transmitters can include its own wireless charging efficiency and power load information in the handshake success information.

[0112] Thus, in step S210, the location information of the plurality of wireless charging transmitting devices can be determined. In the present disclosure, one or more of the plurality of wireless charging transmitting devices can be selected to charge an electronic device. Accordingly, when the location information of the plurality of wireless charging transmitting devices is determined according to the handshake message information of each positioning sub-module, before the step of performing beam training for at least one of the wireless charging receiving antennas, the method includes: Traversing wireless charging efficiency and power load information in the handshake success information; calculating an average wireless charging efficiency and an average power load for each wireless charging module of each of the wireless charging transmitters based on the wireless charging efficiency and power load information of each of the wireless charging transmitters; The method further includes determining a wireless charging transmitter for wireless charging based on the calculated average wireless charging efficiency and average power load.

[0113] As described above, different judgment principles are determined based on the average value statistical method of the average wireless charging efficiency and average power load, and a wireless charging transmitter 300 is judged and preferentially selected based on the overall average value, or several wireless charging transmitters 300 are judged and preferentially selected based on the group average value of beacon antennas in different directions, thereby realizing wireless charging of electronic devices with multiple millimeter-wave array beacon antennas by one or several wireless charging transmitters 300.

[0114] When the electronic device (e.g., a mobile phone) including the wireless charging device moves widely, the channel condition changes. To avoid interruption of charging due to movement of the electronic device, preferably, after step S230, the method may further include the following steps S240 to S250, as shown in FIG. 8.

[0115] In step S240, the location information of the electronic device including the wireless charging device is determined. In step S250, if the position information of the electronic device indicates that the position change range of the wireless charging device exceeds a predetermined threshold, the reference signal receiving frequency RSRP and / or the signal-to-noise ratio SNR of each wireless charging antenna is determined.

[0116] Whether to perform beam training for each wireless charging receiving antenna is determined based on the reference signal receiving power (RSRP) or signal-to-noise ratio (SNR) of each wireless charging receiving antenna.

[0117] For example, if the RSRP of a wireless charging antenna is low, beam training is performed again for the wireless charging antenna.

[0118] In the present disclosure, there is no particular limitation on how the location information of the electronic device is determined. For example, the location information of the electronic device can be determined by a software calculation method.

[0119] In order to quickly determine the location information of the electronic device and improve the execution efficiency of the method, the location information of the electronic device is preferably provided by a location sensor. The location sensor is hardware installed in the electronic device and can accurately determine the location information of the electronic device. Compared with software calculation, reading the location information of the electronic device provided by the location sensor is not only more accurate but also more efficient.

[0120] If the position change of the wireless charging device exceeds a predetermined threshold, it indicates that the channel condition also changes significantly, and beam training can be performed again to achieve higher charging efficiency.

[0121] In the present disclosure, the specific type of the location sensor is not particularly limited, and the location sensor may be at least one of a gyroscope, an Ultra Wide Band (UWB), or a Bluetooth® sensor of a mobile terminal, as long as it can identify the terminal location information of the terminal.

[0122] In order to improve charging efficiency, as a preferred embodiment, as shown in FIG. 8, before step S230, the method further includes the following step S225:

[0123] In step S225, the remaining battery power is determined. When the remaining battery power is lower than a predetermined percentage of the full charge power, the step of performing beam training for each wireless charging receiving antenna is performed for the first number of charging sub-modules.

[0124] When the remaining battery power exceeds a predetermined percentage of the full charge power, the step of performing beam training for each wireless charging receiving antenna is performed for a second number of charging sub-modules, and the first number is greater than the second number.

[0125] That is, when the battery level is low, more charging sub-modules are used to charge the battery, and when the battery level reaches a certain level, the number of operating charging sub-modules is reduced and the battery is charged in a "trickle" manner.

[0126] As mentioned above, the millimeter wave communication antenna of the electronic device may be multiplexed as a wireless charging receiving antenna, and the wireless charging device includes a radio frequency switch, and accordingly, the method includes: generating a first control signal after performing beam pairing between the wireless charging receiving antenna and the wireless charging transmitting device; The method further includes sending the first control signal to a control end of the radio frequency switch.

[0127] That is, after the beam pairing is completed, the wireless charging device enters a charging state, and can control the radio frequency switch to electrically connect the millimeter-wave communication antenna and the second rectifier circuit so that the millimeter-wave communication antenna functions as a wireless charging receiving antenna to improve charging efficiency.

[0128] When the remaining battery charge reaches a predetermined percentage of the full charge, the millimeter wave communication antenna can be controlled not to function as a wireless charging receiving antenna. generating a second control signal when the remaining charge of the battery exceeds a predetermined percentage of the full charge; The method further includes sending the second control signal to a control end of the radio frequency switch.

[0129] After the remaining battery power reaches a certain value, the millimeter-wave communication antenna can continue to realize the communication function by electrically connecting the millimeter-wave communication antenna to the corresponding communication circuit via the radio frequency switch.

[0130] As a third aspect of the present disclosure, an electronic device is provided, which includes a wireless charging device, a processor, and a memory module, wherein the wireless charging device is the wireless charging device according to the first aspect of the present disclosure, and an executable program is stored in the memory module.

[0131] When the processor invokes the executable program, it can execute the method according to the second aspect of the present disclosure.

[0132] The processor can improve the efficiency of wireless charging by controlling the wireless charging device according to the method of the present disclosure.

[0133] Preferably, the terminal includes a plurality of millimeter-wave communication antennas, the number of the millimeter-wave communication antennas is the same as the number of the wireless charging modules, and the millimeter-wave communication antennas are arranged in one-to-one correspondence with the wireless charging modules.

[0134] 9 provides a structural schematic diagram of an electronic device. In this embodiment, the electronic device is a mobile phone. As shown, the charging module carrier 100 is part of the case of the electronic device.

[0135] Preferably, the electronic device can achieve 4G communication and 5G communication. Accordingly, the electronic device may include a 4G LTE diversity antenna and a millimeter-wave communication antenna 700. In the embodiment shown in Figure 9, the electronic device includes three millimeter-wave communication antennas 700 and also includes three wireless charging modules.

[0136] Preferably, the electronic device may further include an antenna such as an NFC antenna, a UWB&BT&WIFI antenna, a 4G LTE antenna, or a Sub6GHz frequency band antenna.

[0137] In order to improve heat dissipation performance, the charging module carrier 100 may be provided with a heat dissipation film.

[0138] The electronic device may be a mobile phone, a tablet computer, a CPE, or a smart home device.

[0139] As a fourth aspect of the present disclosure, a computer-readable storage medium is provided, wherein an executable program is stored in the computer-readable storage medium, and when the executable program is called, the method according to the second aspect of the present disclosure can be realized.

[0140] Those skilled in the art will understand that all or some of the steps of the methods, systems, and functional modules / units in the devices disclosed above may be implemented by software, firmware, hardware, or any suitable combination thereof. In hardware embodiments, the division between functional modules / units described in the above description does not necessarily correspond to the division of physical components. For example, one physical component may have multiple functions, or one function or step may be jointly performed by several physical components. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (e.g., computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, tape cartridges, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium that stores the desired information and can be accessed by a computer. Additionally, as known to those skilled in the art, communication media typically include computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier or other transport mechanism and may include any information delivery media.

[0141] Although the present disclosure discloses exemplary embodiments and employs specific terms, they are used and should be construed in a general, illustrative sense only, and not for purposes of limitation. In some embodiments, unless otherwise specified, features, characteristics, and / or elements described in connection with a particular embodiment may be used alone or in combination with features, characteristics, and / or elements described in connection with other embodiments, as will be apparent to those skilled in the art. Accordingly, as will be apparent to those skilled in the art, various changes in form and detail may be made without departing from the scope of the present disclosure, as defined by the appended claims.

Claims

1. A wireless charging device comprising a charging module carrier and a plurality of wireless charging modules, wherein the wireless charging module comprises a positioning sub-module and a charging sub-module, the charging sub-module comprises at least one wireless charging receiving antenna, the positioning sub-module is configured to identify a position of a wireless charging transmitting device, the plurality of wireless charging modules are respectively provided at a plurality of mounting positions of the charging module carrier, and the positioning sub-module is further configured to, after identifying the position of the wireless charging transmitting device, transmit position information of each of the wireless charging receiving antennas to the wireless charging transmitting device; a wireless charging device, wherein the positioning sub-module includes at least one beacon antenna, the beacon antenna broadcasting a handshake message and receiving a handshake success message returned from the wireless charging transmitting device, the beacon antenna including an array in which a plurality of second antenna array elements are arranged, the second antenna array elements in the same beacon antenna having the same orientation, and the second antenna array elements in different beacon antenna arrays having different orientations.

2. The wireless charging device according to claim 1 , wherein the wireless charging receiving antennas in the plurality of wireless charging modules have at least two different orientations.

3. the wireless charging receiving antenna includes an array in which a plurality of first antenna array elements are arranged; The charging sub-module includes a plurality of the wireless charging receiving antennas, and the orientation of the first antenna array element in the same wireless charging receiving antenna is the same, and the orientation of the first antenna array element in different wireless charging receiving antennas is different; The wireless charging device according to claim 2 , wherein the position information of the wireless charging receiving antennas includes relative position distribution information among the plurality of wireless charging receiving antennas.

4. 4. The wireless charging device of claim 3, wherein the charging sub-module further includes a plurality of first rectifier circuits, wherein in the same charging sub-module, the plurality of first rectifier circuits correspond one-to-one to the plurality of wireless charging receiving antennas, and the first rectifier circuits are electrically connected to the corresponding wireless charging receiving antennas so as to rectify the signals received by the corresponding wireless charging receiving antennas.

5. The wireless charging device further includes a centralized charging management circuit and a plurality of DC aggregation circuits; The plurality of wireless charging modules correspond one-to-one to the plurality of DC aggregation circuits, and the input terminal of the DC aggregation circuit is electrically connected to the first rectifier circuit of the corresponding wireless charging module, and the output terminal of the DC aggregation circuit is electrically connected to the input terminal of the centralized charging management circuit; The wireless charging device according to claim 4 , wherein the centralized charging management circuit performs rectification and equalization on the received electrical signal, and outputs a charging current or a charging voltage that satisfies a predetermined condition.

6. each beacon antenna corresponds to at least one of the wireless charging receiving antennas, an angle between an orientation of the beacon antenna and an orientation of a target wireless charging receiving antenna does not exceed a predetermined angle, and the target wireless charging receiving antenna is a wireless charging receiving antenna corresponding to the beacon antenna; The second antenna array elements of the beacon antenna are arranged in the manner of a uniform linear array ULA, or 2. The wireless charging device of claim 1, wherein the beacon antenna includes a ULA in which a plurality of second antenna array elements are arranged, and a uniformly spaced area array UPA in which a plurality of second antenna array elements are arranged.

7. The wireless charging module further includes a second rectifier circuit, the second rectifier circuit is electrically connected to a corresponding millimeter-wave communication antenna; 7. The wireless charging device of claim 1, wherein the wireless charging module further includes a radio frequency switch, a first end of the radio frequency switch electrically connected to the corresponding millimeter-wave communication antenna, a second end of the radio frequency switch electrically connected to the second rectifier circuit, and a third end of the radio frequency switch electrically connected to a communication circuit corresponding to the millimeter-wave communication antenna, wherein a control end of the radio frequency switch electrically connects the first end of the radio frequency switch to the second end of the radio frequency switch upon receiving a first control signal, and electrically connects the first end of the radio frequency switch to the third end of the radio frequency switch upon receiving a second control signal.

8. A method for controlling a wireless charging device, the wireless charging device including a charging module carrier and a plurality of wireless charging modules, the wireless charging module including a positioning sub-module and a charging sub-module, the charging sub-module including at least one wireless charging receiving antenna, the method comprising: determining, by each positioning sub-module, the position information of the wireless charging transmitting device; transmitting position information of the wireless charging receiving antenna of each charging sub-module to the wireless charging transmitting device by the positioning sub-module; performing beam training on at least one wireless charging receiving antenna to achieve beam pairing between a corresponding wireless charging receiving antenna and the wireless charging transmitting device; a wireless charging transmitter configured to receive a handshake message from the wireless charging transmitter and a second antenna array element array configured to receive a handshake message from the wireless charging transmitter; a wireless charging transmitter configured to receive a handshake message from the wireless charging transmitter and a second antenna array element array configured to receive a handshake message from the wireless charging transmitter; a wireless charging transmitter configured to receive a handshake message from the wireless charging transmitter; a wireless charging transmitter configured to receive a handshake message from the wireless charging transmitter; a wireless charging transmitter configured to receive a handshake message from the wireless charging transmitter; a wireless charging transmitter configured to receive a handshake message from the wireless charging transmitter; a wireless charging transmitter configured to receive a handshake message from the wireless charging transmitter; a wireless charging transmitter configured to receive a handshake message from the wireless charging transmitter;

9. Before the positioning sub-module determines the position information of the wireless charging transmitting device, the method includes: further comprising the step of transmitting, by each positioning sub-module, a communication handshake message; The step of determining location information of the wireless charging and transmitting device by each positioning sub-module includes: The method of claim 8 , further comprising determining location information of the wireless charging transmitting device based on handshake success information.

10. When determining position information of a plurality of wireless charging transmitting devices according to handshake message information of each positioning sub-module, before the step of performing beam training on at least one of the wireless charging receiving antennas, the method further comprises: Traversing wireless charging efficiency and power load information in the handshake success information; calculating an average wireless charging efficiency and an average power load for each wireless charging module of each of the wireless charging transmitters based on the wireless charging efficiency and power load information of each of the wireless charging transmitters; The method of claim 9 , further comprising: determining a wireless charging transmitter for wireless charging among the plurality of wireless charging devices based on the calculated average wireless charging efficiency and average power load.

11. After the step of performing beam training on at least one of the wireless charging receiving antennas, the method includes: determining location information of an electronic device including the wireless charging device; When the position information of the electronic device indicates that the position change range of the wireless charging device exceeds a predetermined threshold, determining a reference signal reception frequency RSRP and / or a signal-to-noise ratio SNR of each wireless charging antenna; The method of claim 8 , further comprising: determining whether to perform the step of performing beam training on at least one of the wireless charging receive antennas based on an RSRP and / or an SNR of each wireless charging antenna.

12. The method comprises: determining a remaining battery charge; When the remaining battery charge is lower than a predetermined percentage of a full charge, performing the step of performing beam training on at least one of the wireless charging receiving antennas for a first number of charging sub-modules; 12. The method according to claim 8, further comprising: when a remaining charge of a battery exceeds a predetermined percentage of a full charge, performing the step of performing beam training for at least one of the wireless charging receiving antennas for a second number of charging sub-modules, wherein the first number is greater than the second number.

13. The wireless charging device includes a radio frequency switch, and the method further comprises: generating a first control signal after performing beam pairing between the wireless charging receiving antenna and the wireless charging transmitting device; sending the first control signal to a control end of the radio frequency switch; The method comprises: generating a second control signal when the battery level exceeds a predetermined percentage of full charge; The method according to any one of claims 8 to 11, further comprising the step of: transmitting said second control signal to a control end of said radio frequency switch.

14. An electronic device including a wireless charging device, a processor, and a storage module, wherein the wireless charging device includes a charging module carrier and a plurality of wireless charging modules, the wireless charging modules including a positioning sub-module and a charging sub-module, and the charging sub-module includes at least one wireless charging receiving antenna, and an executable program is stored in the storage module; When the processor invokes the executable program, determining, by each positioning sub-module, the position information of the wireless charging transmitting device; transmitting position information of the wireless charging receiving antenna of each charging sub-module to the wireless charging transmitting device by the positioning sub-module; and performing beam training on at least one wireless charging receiving antenna to achieve beam pairing between a corresponding wireless charging receiving antenna and the wireless charging transmitting device; the positioning sub-module includes at least one beacon antenna, which broadcasts a handshake message and receives a handshake success message returned from the wireless charging transmitter, the beacon antenna includes an array in which a plurality of second antenna array elements are arranged, and the second antenna array elements in the same beacon antenna have the same orientation, and the second antenna array elements in different beacon antenna arrays have different orientations.

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