Wireless charging method, device and wireless charging equipment

Abstract

The present application discloses a wireless charging method, device and wireless charging equipment, belonging to the technical field of wireless charging. The wireless charging equipment includes a terminal and an antenna module detachably connected to the terminal. The antenna module is adapted to the shape of the terminal. The terminal has a wired charging interface, and the wired charging interface can be connected to a wired charger. In the embodiments of the present application, by connecting the terminal and the antenna module, the two can be combined and loaded onto a conventional charger to achieve the wireless charging function. The terminal can quickly locate and match the connected device to be charged, thereby shortening the time required for charging negotiation and improving the charging efficiency.

Description

Technical Field

[0001] This application belongs to the technical field of wireless charging, and particularly relates to a wireless charging method, device, and wireless charging equipment. Background Art

[0002] Currently, with the rapid development of mobile terminals, users' demand for intelligent and efficient charging is increasing day by day. However, in the existing wireless charging technology, a wireless charging device includes an antenna part and a control part, and the two parts cannot be independent of each other. The antenna part needs to be combined with the control part to achieve the wireless charging function, resulting in its large volume, single control logic, and the antenna part cannot be reused by other terminals. Summary of the Invention

[0003] The purpose of the embodiments of this application is to provide a camera component, which can solve the problem in the existing wireless charging method that the antenna part needs to be combined with the control part to achieve the wireless charging function, resulting in its large volume, single control logic, and the antenna part cannot be reused by other terminals.

[0004] To solve the above technical problems, this application is implemented as follows:

[0005] In a first aspect, the embodiments of this application provide a wireless charging method, which is applied to a wireless charging device. The wireless charging device includes a terminal and an antenna module detachably connected to the terminal. The antenna module is adapted to the shape of the terminal. The method includes:

[0006] When it is detected that the terminal is connected to a wired charger, locate at least one device to be charged that is already connected to the terminal;

[0007] According to the position of the device to be charged, control the antenna module to perform wireless charging on the device to be charged.

[0008] In a second aspect, the embodiments of this application provide a wireless charging device. The wireless charging device includes a terminal and an antenna module detachably connected to the terminal. The antenna module is adapted to the shape of the terminal. The terminal has a wired charging interface, and the wired charging interface can be connected to a wired charger.

[0009] Optionally, the antenna module includes at least one antenna sheet. When the number of antenna sheets is multiple, at least two of the multiple antenna sheets can be deployed in the same plane.

[0010] Optionally, the antenna sheet is disposed on the back of the terminal and is detachably connected to the terminal. The antenna sheet includes a first antenna block, a second antenna block, and a third antenna block that are independently operable and arranged in sequence along the length direction of the terminal.

[0011] Optionally, the antenna module further includes a circular polarization synthesis network and at least one scanning feed network. The at least one scanning feed network is connected to the circular polarization synthesis network, and the circular polarization synthesis network is connected to the antenna element.

[0012] Optionally, the antenna element is rectangular, and the antenna element includes a plurality of antenna units distributed in an array. Each antenna unit includes two radiators arranged crosswise at 45°, and the angle formed by each radiator and the long side of the antenna element is 45°.

[0013] In a third aspect, an embodiment of the present application provides a wireless charging device, which is applied to a wireless charging device. The wireless charging device includes a terminal and an antenna module detachably connected to the terminal. The antenna module is adapted to the shape of the terminal. The device includes:

[0014] A positioning module, configured to locate at least one device to be charged that is already connected to the terminal when it is detected that the terminal is connected to a wired charger;

[0015] A charging module, configured to control the antenna module to perform wireless charging on the device to be charged according to the position of the device to be charged.

[0016] In a fourth aspect, an embodiment of the present application provides a wireless charging device, which includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor. When the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

[0017] In a fifth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

[0018] In a sixth aspect, an embodiment of the present application provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is configured to run a program or instruction to implement the method described in the first aspect.

[0019] In the embodiment of the present application, by connecting the terminal to the antenna module and combining the two and loading them onto a conventional charger, the wireless charging function can be realized. The terminal can quickly locate and match the devices to be charged that are already connected, thereby shortening the time required for charging negotiation and improving the charging efficiency. Description of the Drawings

[0020] Figure 1 It is a schematic flowchart of a wireless charging method provided by an embodiment of the present application;

[0021] Figure 2 Schematic diagram of a charging control logic provided by an embodiment of the present application;

[0022] Figure 3 Schematic diagram of a charging positioning logic provided by an embodiment of the present application;

[0023] Figure 4 Schematic diagram of an antenna module provided by an embodiment of the present application;

[0024] Figure 5 Schematic structural diagram of an antenna sheet provided by an embodiment of the present application;

[0025] Figure 6 Schematic diagram of an antenna unit provided by an embodiment of the present application;

[0026] Figure 7 Schematic diagram of the relationship between antenna gain and scanning angle provided by an embodiment of the present application;

[0027] Figure 8 Schematic diagram of the relationship between the standing wave ratio and frequency of an antenna provided by an embodiment of the present application;

[0028] Figure 9 One of the schematic diagrams of the combined form of antenna sheets provided by an embodiment of the present application;

[0029] Figure 10 Another schematic diagram of the combined form of antenna sheets provided by an embodiment of the present application;

[0030] Figure 11 The third schematic diagram of the combined form of antenna sheets provided by an embodiment of the present application;

[0031] Figure 12 Schematic structural diagram of a wireless charging device provided by an embodiment of the present application;

[0032] Figure 13 Schematic structural diagram of a wireless charging device provided by an embodiment of the present application. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0034] The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0035] The following will, with reference to the accompanying drawings, describe in detail the wireless charging method, device, and wireless charging equipment provided by the embodiments of this application through specific embodiments and their application scenarios.

[0036] Please refer to Figure 1 , which is a schematic flowchart of a wireless charging method provided by an embodiment of this application. As Figure 1 shown, the wireless charging method in the embodiments of this application is applied to a wireless charging device, a terminal, and an antenna module detachably connected to the terminal. The antenna module is adapted to the shape of the terminal. The method includes the following steps:

[0037] Step 11: When it is detected that the terminal is connected to a wired charger, locate at least one device to be charged that is already connected to the terminal;

[0038] In the embodiments of this application, the connection between the terminal and the antenna module may include an electrical connection to achieve signal transmission, and may also include a structural connection. For example, the two are detachably connected to facilitate the detachment or installation of the antenna module. Among them, the terminal is also connected to at least one device to be charged. A connection relationship can be established between the terminal and the at least one device to be charged in a Bluetooth matching manner or through a router to establish a network connection. When it is detected that the terminal is connected to a wired charger, the terminal locates at least one device to be charged that is already connected, and controls the antenna module to perform beamforming and other processing according to the positioning result to determine the maximum gain direction of the antenna, thereby improving the efficiency of wireless charging.

[0039] Step 12: Control the antenna module to perform wireless charging on the device to be charged according to the position of the device to be charged.

[0040] After positioning at least one device to be charged through the terminal, wireless charging of the device to be charged can be controlled by the terminal according to the position of the device to be charged. For example, electromagnetic waves can be directionally emitted to the position where the device to be charged is located through technical means such as beamforming to achieve efficient wireless charging.

[0041] Therefore, in the embodiments of the present application, the antenna module does not need to be fixedly matched with the control module commonly used in the prior art, but is directly connected to the terminal, and the logical control of the antenna module is realized by using the operation and processing function of the terminal. Thus, the antenna module can be matched with any terminal, convert the wired power into wireless electromagnetic waves to wirelessly charge the device to be charged, improve the matching degree of the antenna module, and expand the control logic of the antenna module. Moreover, since the terminal has established a connection with the device to be charged in advance, the device to be charged can be quickly located through the terminal and the negotiation before charging can be completed, thereby improving the efficiency of wireless charging.

[0042] In some embodiments of the present application, before positioning at least one device to be charged that is already connected to the terminal, the terminal can receive a charging request sent by at least one device to be charged. Then, in response to the charging request, the terminal locates the device to be charged, and then controls the antenna module to wirelessly charge the device to be charged. At this time, the charging request is actively initiated by the device to be charged. Of course, in other embodiments of the present application, before positioning at least one device to be charged that is already connected to the terminal, the terminal can send a charging request to at least one connected device to be charged. Then, in response to the charging request, the device to be charged sends a reply confirming the charging to the terminal. After that, in response to the reply confirming the charging, the terminal locates the device to be charged, and then controls the antenna module to wirelessly charge the device to be charged. At this time, the charging request is actively initiated by the terminal.

[0043] In some embodiments of the present application, usually the terminal is powered by a battery and the power it carries is limited. Therefore, to ensure the normal operation of the terminal and the transmission power of the antenna module, the terminal can be connected to an existing charger. The connection methods include but are not limited to USB, Type-C, etc. Thus, the wireless charging device in the present application can directly capture the wired power and convert it into wireless electromagnetic waves through the terminal and the antenna module for the device to be charged, realizing wired charging for the terminal while also wirelessly charging the device to be charged, thereby achieving good matching with existing terminals and chargers and eliminating additional control modules and power supply modules.

[0044] In other embodiments of the present application, the positioning of at least one device to be charged that is already connected to the terminal includes:

[0045] Control the terminal to send a first control instruction to the device to be charged, where the first control instruction is used to control the device to be charged to turn on the infrared receiving function;

[0046] Control the terminal to send an infrared signal to the device to be charged;

[0047] Receive the decoded information sent by the device to be charged, where the decoded information is obtained by the device to be charged by decoding the received infrared signal.

[0048] That is to say, in the embodiments of the present application, infrared remote control positioning can be used to position the device to be charged to achieve accurate positioning of the device to be charged. Specifically, since a connection has been established between the terminal and the device to be charged, the terminal can send a first control instruction to the device to be charged through Bluetooth or the like to control the device to be charged to turn on the infrared receiving function. If the device to be charged is in a sleep state, the first control instruction can also wake up the device to be charged and make the device to be charged turn on the infrared receiving function after waking up. By controlling the device to be charged to turn on the infrared receiving function only during positioning, the power consumption of the device to be charged can be reduced; then, the terminal sends an infrared signal to the device to be charged, and the infrared signal can be obtained by the terminal encoding and modulating the signal by using the product code of the device to be charged that has been Bluetooth-matched; after the device to be charged receives the infrared signal, it will decode the received infrared signal to obtain decoded information and send it back to the terminal; the terminal receives the decoded information sent by the device to be charged, and then can complete the positioning of the device to be charged according to the decoded information. The accurate positioning of the device to be charged is beneficial to improving the efficiency of subsequent wireless charging.

[0049] Optionally, during the charging process, the attitude of the terminal can also be periodically detected. When the attitude of the terminal changes significantly, the above positioning process can be repeated to update the positioning of the device to be charged to ensure that the antenna module can follow the maximum gain direction of the antenna as quickly as possible.

[0050] In some embodiments of the present application, the antenna module includes antenna chips. Controlling the antenna module to perform wireless charging on the device to be charged according to the position of the device to be charged includes:

[0051] Control the antenna chip to charge the device to be charged within a preset azimuth angle range of the antenna chip according to the position of the device to be charged.

[0052] Specifically, the antenna module of the wireless charging device includes an antenna sheet, which can be in a planar shape such as a rectangle. When controlling the antenna module to perform wireless charging on the device to be charged, it is necessary to select an antenna sheet with a suitable direction to charge the corresponding device to be charged according to the position of the device to be charged, so as to ensure the efficiency of wireless charging. Optionally, the plane where the antenna sheet is located is perpendicular to the horizontal plane, then the antenna sheet can charge the device to be charged within its preset azimuth angle range. For example, the preset azimuth angle range can be within ±60° directly opposite to the antenna sheet, that is, within the range defined by ±60° in the horizontal direction and ±60° in the vertical direction. It can be known that when the number of antenna sheets is one, the one antenna sheet charges the device to be charged within its preset azimuth angle range; when the number of antenna sheets is multiple, each antenna sheet can independently charge the device to be charged within its respective preset azimuth angle range, or at least two antenna sheets can form an antenna to charge the device to be charged within its preset azimuth angle range.

[0053] In some other embodiments of the present application, the number of the antenna sheets is multiple. Controlling the antenna sheets to charge the device to be charged within the preset azimuth angle range of the antenna sheets includes:

[0054] Unfolding at least two of the antenna sheets in the same plane, and controlling the at least two antenna sheets to simultaneously charge the device to be charged within the preset azimuth angle range.

[0055] In this case, the antenna module includes multiple antenna sheets, that is, two or more. At this time, when controlling the antenna sheets to charge the device to be charged within the preset azimuth angle range, at least two antenna sheets can be unfolded in the same plane, so that the at least two antenna sheets unfolded in the same plane are combined into one, thereby controlling the at least two antenna sheets to simultaneously charge the device to be charged within the preset azimuth angle range. Thus, by combining multiple antenna sheets into one to jointly charge a device to be charged, the efficiency of wireless charging can be effectively improved.

[0056] In still some other embodiments of the present application, the antenna sheet is disposed on the back of the terminal and is detachably connected to the terminal. The antenna sheet includes a first antenna block, a second antenna block, and a third antenna block sequentially arranged along the length direction of the terminal. The terminal includes controlling the antenna sheet to charge the device to be charged within the preset azimuth angle range of the antenna sheet, including:

[0057] Using a SAR sensor to detect whether the distance between the human body and the terminal is less than a preset range;

[0058] When the distance between the human body and the terminal is greater than a preset range, control the first antenna block, the second antenna block, and the third antenna block to charge the device to be charged within a preset azimuth angle range of the antenna sheet simultaneously;

[0059] When the distance between the human body and the terminal is less than a preset range, detect the levels of the first antenna block, the second antenna block, and the third antenna block and the attitude of the terminal, and control one or both of the first antenna block, the second antenna block, and the third antenna block to charge the device to be charged within a preset azimuth angle range of the antenna sheet according to the levels of the first antenna block, the second antenna block, and the third antenna block and the attitude of the terminal.

[0060] Exemplarily, in some optional embodiments, the terminal is a mobile phone, and the antenna module can be made into the same or a similar shape as the mobile phone case. For example, a silicone sleeve can be added around the antenna sheet to make the mobile phone case, or it can be made into a shape adapted to the back shape of the mobile phone to facilitate detachably setting the antenna module on the back of the terminal, which is convenient to carry and basically does not affect the normal use of the terminal. At this time, multiple antenna sheets can be folded and set as a whole on the back of the terminal, or only one antenna sheet can be set on the back of the terminal. The antenna sheet includes a first antenna block, a second antenna block, and a third antenna block arranged in sequence along the length direction of the terminal. For example, the terminal is usually rectangular, so its length direction is the extension direction of the long side of the rectangle, and the first antenna block, the second antenna block, and the third antenna block can all work independently.

[0061] When controlling the antenna patch to charge the device to be charged within the preset azimuth angle range of the antenna patch, it is necessary to consider whether the user is using the terminal at this time. If the user is using the terminal at this time, it may block the antenna module and affect the transmission efficiency. Therefore, optionally, an SAR (Specific Absorption Rate) sensor can be used to detect the distance between the human body and the terminal. If the detected distance between the human body and the terminal is greater than the preset range, it is considered that the user is not close to or using the terminal. At this time, the first antenna block, the second antenna block, and the third antenna block of the antenna patch can work simultaneously to charge the device to be charged within the preset azimuth angle range of the antenna patch. If the detected distance between the human body and the terminal is less than or equal to the preset range, it is considered that the user has approached and is holding the terminal for use. At this time, the levels of the first antenna block, the second antenna block, and the third antenna block and the posture of the terminal can be further detected. Combining the high and low levels and the posture of the terminal, it can be determined which part of the first antenna block, the second antenna block, and the third antenna block is blocked, so as to control the unblocked part to charge the device to be charged within the preset azimuth angle range of the antenna patch.

[0062] In some embodiments of the present application, the controlling one or two of the first antenna block, the second antenna block, and the third antenna block to charge the device to be charged within the preset azimuth angle range of the antenna patch according to the levels of the first antenna block, the second antenna block, and the third antenna block and the posture of the terminal includes:

[0063] When the posture of the terminal is in the landscape screen state and the difference between the level of the first antenna block and the level of the third antenna block is less than the first level threshold, controlling the second antenna block to charge the device to be charged within the preset azimuth angle range of the antenna patch;

[0064] When the posture of the terminal is not in the landscape screen state and the difference between the level of the first antenna block and the level of the third antenna block is greater than the first level threshold, controlling the higher-level one of the first antenna block and the third antenna block and the second antenna block to charge the device to be charged within the preset azimuth angle range of the antenna patch simultaneously.

[0065] Specifically, when the terminal is in the landscape orientation, if the level difference between the first antenna block and the third antenna block is less than the first level threshold, that is, the level difference between the two is not significant, and usually the levels of the first antenna block and the third antenna block are also smaller than the level of the second antenna block by a certain value, it means that the terminal is held horizontally by the user and both ends of the terminal are blocked by the hand. At this time, the unblocked second antenna block can be controlled to charge the device to be charged within the preset azimuth angle range of the antenna patch; when the terminal is not in the landscape orientation, if the level difference between the first antenna block and the third antenna block is greater than the first level threshold, that is, the level difference between the two is relatively large, and usually the smaller of the levels of the first antenna block and the third antenna block is also smaller than the level of the second antenna block by a certain value, it means that the terminal is held vertically by the user and one end of the terminal is blocked by the hand. At this time, the one with the higher level among the first antenna block and the third antenna block and the second antenna block can be controlled to charge the device to be charged within the preset azimuth angle range of the antenna patch at the same time, where the one with the higher level among the first antenna block and the third antenna block is the unblocked one.

[0066] Optionally, to obtain the levels of the first antenna block, the second antenna block, and the third antenna block, the terminal can be controlled to perform signal transceiver with the device to be charged using the first antenna block, the second antenna block, and the third antenna block, so as to generate levels for the first antenna block, the second antenna block, and the third antenna block.

[0067] Therefore, by determining which part of the first antenna block, the second antenna block, and the third antenna block is blocked in the embodiment of the present application, and controlling the unblocked part to charge the device to be charged within the preset azimuth angle range of the antenna patch, the charging efficiency can be improved, the charging loss can be reduced, and the normal use of the terminal is not affected.

[0068] Please refer to Figure 2 , which is a schematic diagram of a charging control logic provided by an embodiment of the present application. As Figure 2 shown, the terminal is connected to an external power supply through a USB cable to achieve wired charging. The antenna module is made into a wireless charging case that is detachably connected to the terminal, and the two have matching physical interfaces. The antenna module can have four antennas, that is, four antenna patches. Then, the terminal sends a charging request to the device to be charged. After the device to be charged responds, the terminal locates the device to be charged. After the location is successful, the antenna module is controlled to turn on the feeding network to radiate electromagnetic waves to charge the device to be charged.

[0069] Please refer to Figure 3 , which is a schematic diagram of a charging location logic provided by an embodiment of the present application. As Figure 3As shown, the antenna module is made into a charging case and is installed in a matching manner with the terminal. When the terminal is charging and wireless charging is selected, the terminal system will send a first control instruction to the connected device to be charged, causing the device to be charged to turn on the infrared receiving function. Moreover, the terminal system will call the corresponding encoded signal of the device to be charged for modulation and transmit it through the infrared emission lamp. The device to be charged will receive the infrared signal through the infrared receiving lamp for decoding and feed back the decoded information to the terminal, thereby realizing the positioning of the terminal for the device to be charged system.

[0070] In summary, in the embodiments of the present application, by connecting the terminal with the antenna module and combining the two and loading them onto a conventional charger, the wireless charging function can be realized. The terminal can quickly locate and match the connected device to be charged, thereby shortening the time required for charging negotiation and improving the charging efficiency.

[0071] The following introduces the wireless charging device mentioned in the above embodiments.

[0072] Another embodiment of the present application further provides a wireless charging device. The wireless charging device includes a terminal and an antenna module detachably connected to the terminal. The antenna module is adapted to the shape of the terminal. The terminal has a wired charging interface, and the wired charging interface can be connected to a wired charger.

[0073] Among them, the connection between the terminal and the antenna module may include an electrical connection to achieve signal transmission, and may also include a structural connection. For example, the two are detachably connected to facilitate the detachment or installation of the antenna module. The terminal has a wired charging interface, and the terminal can be connected to a wired charger through the wired charging interface. That is to say, the terminal is connected to the antenna module, and the terminal is connected to the wired charger, so that the combination of the two can be loaded onto a conventional charger to realize the wireless charging function. The terminal can quickly locate and match the connected device to be charged, thereby shortening the time required for charging negotiation and improving the charging efficiency.

[0074] In some embodiments of the present application, the antenna module includes at least one antenna sheet. When the number of antenna sheets is multiple, at least two of the multiple antenna sheets can be unfolded in the same plane.

[0075] In some embodiments, when the number of antenna patches is one, the single antenna patch can charge a device to be charged within its preset azimuth range; when the number of antenna patches is multiple, each antenna patch can independently charge a device to be charged within its respective preset azimuth range, or at least two antenna patches can form an antenna to charge a device to be charged within its preset azimuth range. For example, the preset azimuth range can be within ±60° facing the antenna patch, that is, within the range defined by ±60° in the horizontal direction and ±60° in the vertical direction.

[0076] That is to say, at least two antenna patches can be deployed in the same plane, so that at least two antenna patches deployed in the same plane are combined into one, thereby combining multiple antenna patches into one to jointly charge a device to be charged, which can effectively improve the efficiency of wireless charging.

[0077] In some other embodiments of the present application, the antenna module further includes a circular polarization synthesis network and at least one scanning feed network. The at least one scanning feed network is connected to the circular polarization synthesis network, and the circular polarization synthesis network is connected to the antenna patch.

[0078] Please refer to Figure 4 , which is a schematic diagram of an antenna module provided by an embodiment of the present application. As Figure 4 shown, exemplarily, the antenna module includes at least one antenna patch 41, and further includes a circular polarization synthesis network 42, a first scanning feed network 43, a second scanning feed network 44, and a third scanning feed network 45. The first scanning feed network 43, the second scanning feed network 44, and the third scanning feed network 45 are all connected to the circular polarization synthesis network 42, and the circular polarization synthesis network 42 is connected to the antenna patch 41. The first scanning feed network 43, the second scanning feed network 44, and the third scanning feed network 45 can achieve scanning feeds at different angles. Optionally, the first scanning feed network 43 is a 30° scanning feed network, the second scanning feed network 44 is a 45° scanning feed network, and the third scanning feed network 45 is a 60° scanning feed network, so as to achieve scanning feeds of the antenna module in the 30°, 45°, and 60° directions.

[0079] In some other embodiments of the present application, the antenna patch is disposed on the back of the terminal and is detachably connected to the terminal. The antenna patch includes a first antenna block, a second antenna block, and a third antenna block that are sequentially arranged along the length direction of the terminal and can work independently.

[0080] Exemplarily, the terminal is a mobile phone. The antenna module can be made into the same or a similar shape as the mobile phone case. For example, a silicone sleeve can be added around the antenna sheet to form the mobile phone case, or it can be made into a shape adapted to the back shape of the mobile phone, so as to facilitate detachably setting the antenna module on the back of the terminal, which is convenient to carry and basically does not affect the normal use of the terminal. At this time, multiple antenna sheets can be folded and set as a whole on the back of the terminal, or only one antenna sheet can be set on the back of the terminal.

[0081] Please refer to Figure 5 , Figure 5 which is a schematic structural diagram of an antenna sheet provided by an embodiment of the present application. As Figure 5 shown, the antenna sheet 41 is rectangular. The antenna sheet 41 includes a first antenna block 411, a second antenna block 412, and a third antenna block 413 that can work independently and are arranged in sequence along its long side. The proportions of the first antenna block 411, the second antenna block 412, and the third antenna block 413 in the total area of the antenna sheet 41 can be set according to actual needs, and the present application does not make specific limitations.

[0082] Considering that when the antenna device is on the back of the terminal, if the user is using the terminal, it may block the antenna module and affect the transmission efficiency. Therefore, the first antenna block, the second antenna block, and the third antenna block of the antenna sheet can work independently. Thus, it is possible to determine which part of the first antenna block, the second antenna block, and the third antenna block is blocked by combining the level of the electric signal and the posture of the terminal, so as to control the unblocked part to charge a device to be charged within a preset azimuth angle range of the antenna sheet, thereby improving the charging efficiency, reducing the charging loss, and not affecting the normal use of the terminal.

[0083] Please refer to Figure 6 , Figure 6 which is a schematic diagram of an antenna unit provided by an embodiment of the present application. As Figure 5 and Figure 6 shown, in some other embodiments of the present application, the antenna sheet includes a plurality of antenna units 414 distributed in an array. Each antenna unit 414 includes two radiators 4141 arranged in a 45° cross. Each radiator 4141 forms an angle of 45° with the long side of the antenna sheet 41.

[0084] In the prior art, when the array antenna operates at 20 GHz, the maximum antenna element size to prevent grating lobes from appearing in the array antenna is λ / 2, where λ is the wavelength corresponding to 20 GHz, i.e., 15 mm. To reduce the risk of grating lobes, the initial element is set to 14 mm × 14 mm. The conventional antenna element setting method is usually arranged along the positive X and positive Y directions. That is, if the array antenna is a planar array antenna and the plane is rectangular, the radiators in the antenna elements are arranged along the long side and short side of the rectangle. However, in the embodiments of the present application, the two radiators 4141 in each antenna element 414 of the antenna sheet 41 are cross - arranged, and the angle formed by each radiator 4141 and the long side of the antenna sheet 41 is 45°. By adopting such an arrangement method, that is, rotating the radiator 4141 by 45°, it is ensured that when the single - polarization antenna is excited, the receiving antenna can receive electromagnetic wave radiation regardless of whether it is in the horizontal or vertical polarization direction, thereby increasing the available range of wireless charging; moreover, more antenna elements can be arranged on the same area, or in other words, when arranging the same number of antenna elements, the occupied area can be reduced (only 73% of the original area). Therefore, the total gain of a single antenna sheet 41 can be increased by 1.51 dB. Due to the polarization mismatch between the 45° oblique polarization and the vertical / horizontal polarization antenna, 1.5 dB will be lost. The two offset each other, so the antenna gain change is extremely small. And the antenna sheets in the embodiments of the present application can work normally under full - polarization reception of electromagnetic waves.

[0085] Please refer to Figure 7 , Figure 7 which is a schematic diagram showing the relationship between the antenna gain and the scanning angle provided by the embodiments of the present application. Figure 7 In it, line ④ represents the antenna gain of the antenna arranged by the prior art when the scanning angle is 0°, line ⑤ represents the antenna gain of the antenna arranged by the prior art when the scanning angle is 30°, line ⑥ represents the antenna gain of the antenna arranged by the prior art when the scanning angle is 60°, line ⑦ represents the antenna gain of the antenna arranged by the embodiment of the present application when the scanning angle is 0°, line ⑧ represents the antenna gain of the antenna arranged by the embodiment of the present application when the scanning angle is 30°, and line ⑨ represents the antenna gain of the antenna arranged by the embodiment of the present application when the scanning angle is 60°. It can be seen that in the embodiments of the present application, by setting the radiator in the above - mentioned form, the antenna gain can be almost kept unchanged, and at the same time, more antenna elements can be arranged on the same area.

[0086] Such as Figure 6As shown, in some other embodiments of the present application, optionally, rectangular strips 4142 perpendicular to the radiator 4141 are provided at both ends of the radiator 4141. By adding the rectangular strips 4142, the electromagnetic wave reflection caused by the open circuit at the end of the radiator 4141 can be optimized, enabling the normal operation of the antenna module within a 2 GHz broadband range, and allowing the antenna module to adapt to various environments. Optionally, the radiator 4141 and the rectangular strips 4142 can be integrally formed.

[0087] Please refer to Figure 8 , Figure 8 which is a schematic diagram showing the relationship between the standing wave ratio and frequency of the antenna provided in the embodiment of the present application. Figure 8 In [the figure], line ① represents the standing wave ratio of the unoptimized dipole antenna without scanning, line ② represents the standing wave ratio of the unoptimized dipole antenna scanned at 60 degrees, line ③ represents the standing wave ratio of the optimized dipole antenna without scanning, and line ④ represents the standing wave ratio of the optimized dipole antenna scanned at 60 degrees. It can be seen that in the embodiment of the present application, by providing rectangular strips 4142 at both ends of the radiator 4141 to optimize the electromagnetic wave reflection caused by the open circuit at the end, and optimizing the length and width of the rectangular strips 4242, the normal operation of the antenna within a 2 GHz bandwidth range is achieved. The standing wave ratio of the optimized antenna is smaller than that of the unoptimized antenna, and the performance is better.

[0088] Please refer to Figures 9 to 11 , Figure 9 which is one of the schematic diagrams showing the combined form of the antenna chips provided in the embodiment of the present application, Figure 10 which is the second schematic diagram showing the combined form of the antenna chips provided in the embodiment of the present application, Figure 11 which is the third schematic diagram showing the combined form of the antenna chips provided in the embodiment of the present application. As Figures 9 to 11 shown, in some embodiments of the present application, optionally, the antenna device includes four antenna chips 41, wherein Figure 9 the four antenna chips 41 in [the figure] are unfolded and combined into one in the same plane. At this time, the antenna gain can be increased by 6 dB compared with a single antenna chip 41. Therefore, the power supply can reduce the transmission power by 6 dB, so as to ensure the same output power as that under a single antenna chip 41. At this time, compared with a single antenna chip 41, the power consumption is only 25% of the original, greatly reducing the power consumption; Figure 10Among the four antenna elements 41, every two are unfolded and combined into one in the same plane. In this case, the antenna gain of the combined antenna element can be increased by 3 dB compared with a single antenna element 41. Therefore, the power supply can reduce the transmission power by 3 dB to ensure the same output power as that of a single antenna element 41. At this time, compared with a single antenna element 41, the power consumption is only 50% of the original, greatly reducing the power consumption. Similarly, if three antenna elements 41 are unfolded and combined into one in the same plane, the antenna gain of the combined antenna element can be increased by 4.8 dB compared with a single antenna element 41. Therefore, the power supply can reduce the transmission power by 4.8 dB to ensure the same output power as that of a single antenna element 41. At this time, compared with a single antenna element 41, the power consumption is only 33% of the original, greatly reducing the power consumption; Figure 11 The four antenna elements 41 in it enclose to form a cuboid. That is to say, the four antenna elements 41 work independently, and each antenna element 41 is responsible for charging the device to be charged within its 90° range. In this state, the radiation direction of each antenna element 41 is different, and the power consumption cannot be reduced by increasing the gain. However, in this state, the antenna beam is the widest and the coverage range is the widest, and each antenna element 41 can dynamically adjust its position. In this way, the charging requirements in all directions around can be taken into account.

[0089] The wireless charging device provided by the embodiment of the present application can achieve Figures 1 to 3 each process implemented by the method embodiment, and for the sake of brevity, it will not be repeated here.

[0090] In the embodiment of the present application, by connecting the terminal to the antenna module and combining the two and loading them onto a conventional charger, the wireless charging function can be realized. The terminal can quickly locate and match the connected device to be charged, thereby shortening the time required for charging negotiation and improving the charging efficiency.

[0091] It should be noted that for the wireless charging method provided by the above application embodiment, the execution subject can be a wireless charging device, or a control module in the wireless charging device for executing the wireless charging method. In the embodiment of the present application, the wireless charging device executing the wireless charging method is taken as an example to illustrate the wireless charging device provided by the embodiment of the present application.

[0092] Please refer to Figure 12 which is a schematic structural diagram of a wireless charging device provided by the embodiment of the present application. As Figure 12 shown, the wireless charging device in the embodiment of the present application is applied to a wireless charging device. The wireless charging device includes a terminal and an antenna module connected to the terminal. The device 120 may include:

[0093] A positioning module 121, configured to position at least one device to be charged that is connected to the terminal when it is detected that the terminal is connected to a wired charger;

[0094] A charging module 122, configured to control the antenna module to wirelessly charge the device to be charged according to the position of the device to be charged.

[0095] Optionally, the positioning module includes:

[0096] A first sending unit, configured to control the terminal to send a first control instruction to the device to be charged, where the first control instruction is used to control the device to be charged to turn on an infrared receiving function;

[0097] A second sending unit, configured to control the terminal to send an infrared signal to the device to be charged;

[0098] A first receiving unit, configured to receive decoded information sent by the device to be charged, where the decoded information is obtained by the device to be charged decoding the received infrared signal.

[0099] Optionally, the antenna module includes antenna chips, and the charging module 122 includes:

[0100] A charging unit, configured to control the antenna chip to charge the device to be charged within a preset azimuth angle range of the antenna chip according to the position of the device to be charged.

[0101] Optionally, the number of the antenna chips is multiple, and the charging unit includes:

[0102] A first charging sub-unit, configured to deploy at least two of the antenna chips in the same plane and control the at least two antenna chips to simultaneously charge the device to be charged within a preset azimuth angle range.

[0103] Optionally, the antenna chips are disposed on the back of the terminal and are detachably connected to the terminal. The antenna chips include a first antenna block, a second antenna block, and a third antenna block that are sequentially disposed along the length direction of the terminal. The charging unit includes:

[0104] A detection sub-unit, configured to use a SAR sensor to detect whether the distance between a human body and the terminal is less than a preset range;

[0105] A second charging sub-unit, configured to, when the distance between the human body and the terminal is greater than the preset range, control the first antenna block, the second antenna block, and the third antenna block to simultaneously charge the device to be charged within a preset azimuth angle range of the antenna chip.

[0106] A third charging sub-unit, configured to detect the levels of the first antenna block, the second antenna block, and the third antenna block and the posture of the terminal when the distance between the human body and the terminal is less than a preset range, and control one or both of the first antenna block, the second antenna block, and the third antenna block to charge the device to be charged within a preset azimuth angle range of the antenna patch according to the levels of the first antenna block, the second antenna block, and the third antenna block and the posture of the terminal.

[0107] Optionally, the third charging sub-unit includes:

[0108] A first micro-unit, configured to control the second antenna block to charge the device to be charged within a preset azimuth angle range of the antenna patch when the posture of the terminal is in the landscape screen state and the difference between the levels of the first antenna block and the third antenna block is less than a first level threshold;

[0109] A second micro-unit, configured to control the higher-level one of the first antenna block and the third antenna block and the second antenna block to charge the device to be charged within a preset azimuth angle range of the antenna patch simultaneously when the posture of the terminal is not in the landscape screen state and the difference between the levels of the first antenna block and the third antenna block is greater than the first level threshold.

[0110] In the embodiment of the present application, by connecting the terminal to the antenna module and combining the two and loading them onto a conventional charger, the wireless charging function can be realized. The terminal can quickly locate and match the connected device to be charged, thereby shortening the time required for charging negotiation and improving the charging efficiency.

[0111] The wireless charging device in the embodiment of the present application may be a device, or a component, an integrated circuit, or a chip in the terminal. The device may be a mobile electronic device or a non-mobile electronic device. Exemplarily, the mobile electronic device may be a mobile phone, a tablet computer, a laptop computer, a handheld computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (PDA), etc. The non-mobile electronic device may be a personal computer (PC), a television (TV), a teller machine, or a self-service machine, etc. The embodiment of the present application does not make a specific limitation.

[0112] The wireless charging device in the embodiments of the present application can be a device with an operating system. The operating system can be the Android operating system, the iOS operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.

[0113] The wireless charging device provided by the embodiments of the present application can implement Figures 1 to 3 each process implemented by the method embodiments. To avoid repetition, details are not described herein again.

[0114] Optionally, as Figure 13 shown, the embodiments of the present application further provide a wireless charging device 1300, including a processor 1301, a memory 1302, and a program or instruction stored on the memory 1302 and executable on the processor 1301. When the program or instruction is executed by the processor 1301, it implements each process of the above-mentioned wireless charging method embodiments and can achieve the same technical effects. To avoid repetition, details are not described herein again.

[0115] The embodiments of the present application further provide a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, it implements each process of the above-mentioned wireless charging method embodiments and can achieve the same technical effects. To avoid repetition, details are not described herein again.

[0116] Wherein, the processor is the processor in the wireless charging device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs, etc.

[0117] The embodiments of the present application further provide a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement each process of the above-mentioned wireless charging method embodiments and can achieve the same technical effects. To avoid repetition, details are not described herein again.

[0118] It should be understood that the chip mentioned in the embodiments of the present application can also be referred to as a system-on-chip, system chip, chip system, or system-on-chip, etc.

[0119] It should be noted that, in this text, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article or device comprising such element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0120] Through the description of the above embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus a necessary general hardware platform. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disc) and includes several instructions for causing a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of the present application.

[0121] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. A wireless charging device, characterized in that, The wireless charging device includes a terminal and an antenna module detachably connected to the terminal. The antenna module is adapted to the shape of the terminal. The terminal has a wired charging interface, and the wired charging interface can be connected to a wired charger. The terminal is configured to: When it is detected that the terminal is connected to a wired charger, perform pre-charging negotiation and positioning on at least one device to be charged connected to the terminal, and control the antenna module to perform wireless charging on the device to be charged according to the position of the device to be charged.

2. The wireless charging device according to claim 1, characterized in that, The antenna module includes at least one antenna sheet. When the number of antenna sheets is multiple, at least two of the multiple antenna sheets can be deployed in the same plane.

3. The wireless charging device according to claim 2, characterized in that, The antenna sheet is disposed on the back of the terminal and is detachably connected to the terminal. The antenna sheet includes a first antenna block, a second antenna block, and a third antenna block that are sequentially arranged along the length direction of the terminal and can work independently.

4. The wireless charging device according to claim 2, characterized in that, The antenna sheet is rectangular. The antenna sheet includes a plurality of antenna units distributed in an array. Each antenna unit includes two radiators arranged in a 45° cross, and the angle formed by each radiator and the long side of the antenna sheet is 45°.

5. The wireless charging device according to claim 2, characterized in that, The antenna module further includes a circular polarization synthesis network and at least one scanning feeding network. The at least one scanning feeding network is connected to the circular polarization synthesis network, and the circular polarization synthesis network is connected to the antenna sheet.

6. A wireless charging method, applied to a wireless charging device, characterized in that, The wireless charging device includes a terminal and an antenna module detachably connected to the terminal. The antenna module is adapted to the shape of the terminal. The method includes: When it is detected that the terminal is connected to a wired charger, the terminal performs pre-charging negotiation and positioning on at least one device to be charged connected to the terminal. The terminal controls the antenna module to perform wireless charging on the device to be charged according to the position of the device to be charged.

7. The method according to claim 6, characterized in that, The positioning of at least one device to be charged connected to the terminal includes: Controlling the terminal to send a first control instruction to the device to be charged, where the first control instruction is used to control the device to be charged to turn on the infrared receiving function. Controlling the terminal to send an infrared signal to the device to be charged. Receiving the decoded information sent by the device to be charged, where the decoded information is obtained by the device to be charged decoding the received infrared signal.

8. The method according to claim 6, characterized in that, The antenna module includes an antenna sheet. The controlling the antenna module to perform wireless charging on the device to be charged according to the position of the device to be charged includes: Controlling the antenna sheet to perform charging on the device to be charged located within a preset azimuth angle range of the antenna sheet according to the position of the device to be charged.

9. The method according to claim 8, characterized in that, The number of antenna sheets is multiple. The controlling the antenna sheet to perform charging on the device to be charged located within a preset azimuth angle range of the antenna sheet includes: Deploying at least two antenna sheets in the same plane, and controlling the at least two antenna sheets to simultaneously perform charging on the device to be charged within the preset azimuth angle range.

10. The method according to claim 8, characterized in that, The antenna sheet is disposed on the back of the terminal and is detachably connected to the terminal. The antenna sheet includes a first antenna block, a second antenna block, and a third antenna block sequentially arranged along the length direction of the terminal. The terminal includes controlling the antenna sheet to charge the device to be charged within a preset azimuth angle range of the antenna sheet, including: Using a SAR sensor to detect whether the distance between the human body and the terminal is less than a preset range; When the distance between the human body and the terminal is greater than the preset range, controlling the first antenna block, the second antenna block, and the third antenna block to simultaneously charge the device to be charged within a preset azimuth angle range of the antenna sheet; When the distance between the human body and the terminal is less than the preset range, detecting the levels of the first antenna block, the second antenna block, and the third antenna block and the posture of the terminal, and controlling one or both of the first antenna block, the second antenna block, and the third antenna block to charge the device to be charged within a preset azimuth angle range of the antenna sheet according to the levels of the first antenna block, the second antenna block, and the third antenna block and the posture of the terminal.

11. The method according to claim 10, characterized in that, The controlling one or both of the first antenna block, the second antenna block, and the third antenna block to charge the device to be charged within a preset azimuth angle range of the antenna sheet according to the levels of the first antenna block, the second antenna block, and the third antenna block and the posture of the terminal includes: When the posture of the terminal is in the landscape screen state and the difference between the level of the first antenna block and the level of the third antenna block is less than a first level threshold, controlling the second antenna block to charge the device to be charged within a preset azimuth angle range of the antenna sheet; When the posture of the terminal is not in the landscape screen state and the difference between the level of the first antenna block and the level of the third antenna block is greater than the first level threshold, controlling the higher-level one of the first antenna block and the third antenna block and the second antenna block to simultaneously charge the device to be charged within a preset azimuth angle range of the antenna sheet.

12. A wireless charging device, applied to a wireless charging device, characterized in that, The wireless charging device includes a terminal and an antenna module detachably connected to the terminal. The antenna module is adapted to the outer shape of the terminal. The terminal includes: A positioning module for performing pre-charging negotiation and positioning on at least one device to be charged connected to the terminal when it is detected that the terminal is connected to a wired charger; A charging module for controlling the antenna module to perform wireless charging on the device to be charged according to the position of the device to be charged.

13. A wireless charging device, characterized in that, Including a processor, a memory, and a program or instruction stored on the memory and executable on the processor. When the program or instruction is executed by the processor, the steps of the wireless charging method according to any one of claims 6-11 are implemented.

14. A readable storage medium, characterized in that, The program or instruction is stored on the readable storage medium. When the program or instruction is executed by the processor, the steps of the wireless charging method according to any one of claims 6-11 are implemented.

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