A charging device, a charging method, a storage medium and a computer program product

Abstract

This disclosure relates to a charging device, charging method, storage medium, and computer program product. The charging device includes: at least one wireless coil; at least one detection element, spaced apart from the at least one wireless coil, for detecting auxiliary devices located within the detection range of the charging device; and a control circuit electrically connected to both the detection element and the wireless coil, for controlling the wireless coil to transmit wireless charging signals to at least two auxiliary devices when at least two auxiliary devices are detected within the detection range of the charging device by the at least one detection element. The charging device proposed in this disclosure can wirelessly charge two different types of auxiliary devices, improving the comprehensiveness and compatibility of the charging device's charging function.

Description

Technical Field

[0001] This disclosure relates to the field of charging technology, and in particular to a charging device, charging method, storage medium, and computer program product. Background Technology

[0002] With the continuous development of science and technology, many electronic products have gradually become necessities in people's lives and work. Taking tablet computers as an example, they can fully meet users' daily work, audio-visual entertainment, and online learning needs.

[0003] To meet the needs of work and entertainment, tablet computers have spawned various types of accessories such as styluses and keyboards. Currently, styluses and keyboards use different charging interfaces and charging methods, making them incompatible with each other. This necessitates the use of multiple different types of charging devices for these accessories, which are inconvenient for users to carry and cause inconvenience in using these accessories. Summary of the Invention

[0004] To overcome the problems existing in related technologies, this disclosure provides a charging device, a charging method, a storage medium, and a computer program product. The charging device proposed in this disclosure can wirelessly charge two different auxiliary devices, improving the comprehensiveness and compatibility of the charging device's charging function.

[0005] According to a first aspect of the present disclosure, a charging device is provided, comprising:

[0006] At least one wireless coil;

[0007] At least one detection element, spaced apart from at least one of the wireless coils, is used to detect auxiliary devices located within the detection range of the charging device;

[0008] A control circuit, electrically connected to the detection element and the wireless coil respectively, is used to control the wireless coil to transmit a wireless charging signal to at least two of the auxiliary devices when at least two auxiliary devices are detected within the detection range of the charging device by at least one of the detection elements.

[0009] In some embodiments, the wireless coil includes one, and the charging device further includes:

[0010] The first electrical output circuit is electrically connected to the wireless coil and is used to output an AC signal;

[0011] The control circuit is electrically connected to the first electrical output circuit and is used to control the electrical parameters of the AC signal output by the first electrical output circuit according to the usage information of at least two of the auxiliary devices.

[0012] The electrical parameters of the AC signal are different, and the wireless charging signal output by the wireless coil is different; and the different wireless charging signals are used to charge different auxiliary devices.

[0013] In some embodiments, the wireless coil includes at least two, and each wireless coil is disposed on a different side of the charging device;

[0014] The charging device further includes: a second electrical output circuit and a switching assembly;

[0015] The second electrical output circuit is electrically connected to the control circuit and is used to drive the wireless coil to transmit the wireless charging signal under the action of the control circuit.

[0016] A switching assembly is connected to the connection lines between the second electrical output circuit and at least two of the wireless coils;

[0017] When the switching assembly is in different switching states, the connection lines between the second electrical output circuit and the different wireless coils are in a conductive state.

[0018] In some embodiments, the wireless coil includes at least two, and each wireless coil is disposed on a different side of the charging device;

[0019] The charging device further includes at least two third electrical output circuits; at least two of the third electrical output circuits are electrically connected to the control circuit.

[0020] Each of the third electrical output circuits is electrically connected to a different wireless coil and is used to drive the different wireless coils to transmit the wireless charging signal under the action of the control circuit.

[0021] In some embodiments, the detection element comprises at least two;

[0022] Each of the detection elements is distributed on the same side of the charging device along with different wireless coils.

[0023] In some embodiments, the charging device further includes:

[0024] At least two sets of magnetic components are disposed on different sides of the charging device;

[0025] The magnetic components in each group are used to achieve magnetic adsorption with different auxiliary devices.

[0026] In some embodiments, the charging device further includes:

[0027] A communication component for acquiring usage information of the auxiliary device;

[0028] The control circuit, electrically connected to the communication component, is used to control the wireless coil to transmit the wireless charging signal to a target auxiliary device among the at least two auxiliary devices based on the usage information of the at least two auxiliary devices.

[0029] In some embodiments, the detection element includes a Hall effect detection element or a near-field communication detection element.

[0030] According to a second aspect of the present disclosure, a charging method is provided, applied to the charging device proposed in the first aspect above, the method comprising:

[0031] If at least two auxiliary devices are detected within the detection range of the charging device, the wireless coil of the charging device is controlled to transmit wireless charging signals to at least two of the auxiliary devices.

[0032] In some embodiments, controlling the wireless coil of the charging device to transmit a wireless charging signal to at least two auxiliary devices when at least two auxiliary devices are detected within the detection range of the charging device includes:

[0033] If at least two of the auxiliary devices are detected within the detection range of the charging device, the usage information of at least two of the auxiliary devices is obtained;

[0034] Based on the usage information of at least two of the auxiliary devices, determine the target auxiliary device from among the at least two auxiliary devices;

[0035] Control the wireless coil to transmit the wireless charging signal to the target accessory device.

[0036] In some embodiments, controlling the wireless coil to transmit the wireless charging signal to the target accessory device includes:

[0037] In the case where there are at least two wireless coils, the target wireless coil corresponding to the target accessory device is determined among the at least two wireless coils.

[0038] Control the target wireless coil to transmit the wireless charging signal to the target accessory device;

[0039] In the case where the wireless coil includes one device, the target electrical parameters corresponding to the target accessory device are determined, and the wireless coil is controlled to transmit the wireless charging signal that matches the target electrical parameters.

[0040] In some embodiments, determining the target auxiliary device from at least two auxiliary devices based on usage information from at least two auxiliary devices includes:

[0041] Based on the status information of the charging device and the usage information of at least two auxiliary devices, a target auxiliary device is determined from at least two auxiliary devices;

[0042] The status information of the charging device includes the remaining power of the charging device and / or the device temperature.

[0043] In some embodiments, determining the target auxiliary device from at least two auxiliary devices based on the status information of the charging device and the usage information of at least two auxiliary devices includes:

[0044] When the device temperature of the charging device is lower than a first temperature threshold, the remaining power of the charging device is obtained;

[0045] If the remaining power of the charging device is greater than or equal to a first power threshold, the target auxiliary device is determined based on the status information and / or device type of at least two auxiliary devices;

[0046] If the remaining power of the charging device is less than the first power threshold and greater than or equal to the second power threshold, the target auxiliary device is determined based on the device types of at least two of the auxiliary devices; wherein the second power threshold is less than the first power threshold.

[0047] The method further includes:

[0048] If the device temperature of the charging device is greater than or equal to the first temperature threshold, or if the remaining power of the charging device is less than the second power threshold, the wireless coil is controlled not to emit the wireless charging signal.

[0049] In some embodiments, determining the target auxiliary device based on the status information and / or device type of at least two of the auxiliary devices includes:

[0050] If there are different remaining powers among at least two remaining powers of at least two of the auxiliary devices, the auxiliary device with the smallest remaining power shall be designated as the target auxiliary device.

[0051] If at least two of the auxiliary devices have the same remaining power, the target auxiliary device is determined based on the device type of the at least two auxiliary devices.

[0052] In some embodiments, the method further includes:

[0053] If the current target auxiliary device has a device temperature greater than or equal to a second temperature threshold, or the current target auxiliary device has a remaining power greater than or equal to a third power threshold, at least one first candidate auxiliary device is determined from at least two auxiliary devices; wherein the first candidate auxiliary device is different from the current target auxiliary device, and the third power threshold is greater than the first power threshold;

[0054] Based on the device temperature and / or remaining power of at least one of the first candidate auxiliary devices, determine the next target auxiliary device, or control the wireless coil to stop transmitting the wireless charging signal.

[0055] In some embodiments, determining the target auxiliary device based on the status information and / or device type of at least two of the auxiliary devices includes:

[0056] If at least two of the remaining batteries of at least two of the auxiliary devices are greater than or equal to a fourth battery threshold, the target auxiliary device is determined based on the auxiliary device of the first type.

[0057] If at least two of the remaining batteries of at least two of the auxiliary devices are less than the fourth battery threshold, the target auxiliary device is determined based on the auxiliary device of the second type; wherein the first type and the second type are different;

[0058] If at least one of the remaining powers of at least two of the auxiliary devices is greater than or equal to the fourth power threshold, and at least one of the remaining powers is less than the fourth power threshold, the target auxiliary device is determined based on the at least one auxiliary device whose remaining power is less than the fourth power threshold.

[0059] In some embodiments, the method further includes:

[0060] If the current target accessory is of the first type, and the remaining power of the current target accessory is greater than or equal to the fifth power threshold, then at least one second candidate accessory is determined among at least two accessory devices.

[0061] If the current target accessory is of the second type, and the remaining power of the current target accessory is greater than or equal to the sixth power threshold, then at least one second candidate accessory is determined among at least two accessories; wherein the second candidate accessory is different from the current target accessory, the fifth power threshold and the sixth power threshold are different, and both are greater than the fourth power threshold;

[0062] Based on the device temperature and / or remaining power of at least one of the second candidate auxiliary devices, determine the next target auxiliary device from among at least one of the second candidate auxiliary devices, or control the wireless coil to stop transmitting the wireless charging signal.

[0063] According to a third aspect of the present disclosure, a charging device is provided, comprising:

[0064] The control module is configured to control the wireless coil of the charging device to transmit a wireless charging signal to at least two of the auxiliary devices when at least two auxiliary devices are detected within the detection range of the charging device.

[0065] According to a fourth aspect of the present disclosure, a non-transitory computer-readable storage medium is provided, the storage medium storing a computer program or instructions, wherein when the computer program or instructions in the storage medium are executed by a processor, the steps of the method described in the second aspect are implemented.

[0066] According to a fifth aspect of the present disclosure, a computer program product is provided, including a computer program or instructions, wherein when the computer program or instructions are executed by a processor, they implement the steps of the method described in the second aspect above.

[0067] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects:

[0068] In this embodiment, when the detection element detects the presence of at least two auxiliary devices within the detection range, the charging device can use at least one wireless coil to charge at least two auxiliary devices. This makes the charging device and its auxiliary devices easier to carry and use together, alleviating the inconvenience of needing to carry separate charging devices for each auxiliary device. Furthermore, since this embodiment provides at least one wireless coil, it is possible to charge different auxiliary devices using different wireless charging signals from a single wireless coil, or to charge different auxiliary devices by transmitting wireless charging signals from multiple wireless coils respectively. This enhances the practicality and flexibility of the charging device in wirelessly charging multiple different auxiliary devices, further providing more possibilities for expanding the range of practical auxiliary devices available for the charging device.

[0069] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0070] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0071] Figure 1 This is a schematic diagram of the structure of a charging device and its auxiliary devices according to an exemplary embodiment;

[0072] Figure 2a This is a schematic diagram of the location of a wireless coil according to an exemplary embodiment. Figure 1 ;

[0073] Figure 2b This is a schematic diagram illustrating the connection between a wireless coil and a wireless chip according to an exemplary embodiment. Figure 1 ;

[0074] Figure 3a This is a schematic diagram showing the position of a wireless coil according to an exemplary embodiment;

[0075] Figure 3b This is a schematic diagram (2) illustrating the connection between a wireless coil and a wireless chip according to an exemplary embodiment;

[0076] Figure 3c This is a schematic diagram (3) illustrating the connection between a wireless coil and a wireless chip according to an exemplary embodiment;

[0077] Figure 4a This is a schematic diagram showing the positional distribution of the detection element and the wireless coil according to an exemplary embodiment;

[0078] Figure 4b This is a schematic diagram showing the positional distribution of the magnetic component and the wireless coil according to an exemplary embodiment;

[0079] Figure 5 This is a flowchart illustrating a charging method according to an exemplary embodiment. Figure 1 ;

[0080] Figure 6 This is a schematic flowchart of a charging method according to an exemplary embodiment;

[0081] Figure 7 This is a schematic flowchart of a charging method according to an exemplary embodiment;

[0082] Figure 8 This is a structural block diagram of a charging device according to an exemplary embodiment. Figure 1 ;

[0083] Figure 9 This is a structural block diagram of a charging device according to an exemplary embodiment. Detailed Implementation

[0084] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0085] Figure 1 This is a schematic diagram illustrating the structure of a charging device and its auxiliary devices according to an exemplary embodiment. Figure 1 As shown, the charging device 1 includes:

[0086] At least one wireless coil 11;

[0087] At least one detection element 12 is spaced apart from at least one wireless coil 11 for detecting an accessory device 2 located within the detection range of the charging device 1;

[0088] The control circuit 13 is electrically connected to the detection element 12 and the wireless coil 11 respectively, and is used to control the wireless coil 11 to transmit a wireless charging signal to at least two auxiliary devices 2 when at least two auxiliary devices 2 are detected within the detection range of the charging device 1 by at least one detection element 12.

[0089] Here, the aforementioned charging device serves as the main device and has at least one auxiliary device. The auxiliary device and the main device can cooperate to complete various application functions of the main device. Since the auxiliary device is an electrical device, this disclosure provides a wireless charging function for the charging device, which is used in scenarios where it wirelessly charges its auxiliary devices. Furthermore, the charging device also supports wireless charging for various types of auxiliary devices.

[0090] The aforementioned charging devices include fixed terminals and mobile terminals; fixed terminals include, but are not limited to, vehicle-mounted terminals; mobile terminals include, but are not limited to, mobile phones, tablets, etc. In some examples, the charging device is a vehicle-mounted terminal, in which case auxiliary devices include, but are not limited to, mobile phones, watches, etc., which can be used in conjunction with the vehicle-mounted terminal to complete navigation functions, and the vehicle-mounted terminal can also provide wireless charging functions for watches and mobile phones; in other examples, the charging device is a tablet computer, and auxiliary devices include, but are not limited to, styluses, touch keyboards, etc., in which case the styluses or touch keyboards can be used in conjunction with the tablet computer to complete information input and processing functions, and the tablet computer can also provide wireless charging functions for styluses and touch keyboards; in still other examples, the charging device is a mobile phone, in which case auxiliary devices can be watches or headphones, etc., and this disclosure does not limit this.

[0091] like Figure 1As shown, the different auxiliary devices 2 of the charging device 1 include: a first auxiliary device 21 and a second auxiliary device 22; the first auxiliary device 21 and the second auxiliary device 22 are of different device types and have different wired charging interfaces. Thus, the first auxiliary device 21 and the second auxiliary device 22 can be wired charged using charging devices with different transmission interfaces, and can also be wirelessly charged using the charging device 1 proposed in this embodiment of the disclosure; for example, the charging device 1 can be a tablet computer, the first auxiliary device 21 can be a stylus, and the second auxiliary device 22 can be a touch keyboard.

[0092] In this embodiment of the present disclosure, the charging device has a housing, and a wireless coil is disposed inside the housing; for example, the wireless coil can be attached to the inner wall of the housing, or attached to the surface of the middle frame facing the housing; the wireless coil of the charging device and the wireless coil of the auxiliary device can be electromagnetically coupled, wherein: the wireless coil of the charging device can generate an alternating magnetic field under the excitation of an AC signal and emit a wireless charging signal outward, so that the wireless coil disposed inside the auxiliary device can receive the wireless charging signal and convert it into an electrical signal input to the battery inside the auxiliary device, thereby completing the wireless charging function.

[0093] Combination Figure 1 As shown, the wireless coil 11 of the charging device 1 can be electromagnetically coupled to the wireless coils of the first auxiliary device 21 and the second auxiliary device 22, respectively. It should also be noted that this embodiment may use one or more wireless coils 11; this disclosure does not impose any limitation on this.

[0094] In this embodiment, the charging device also includes a detection element for detecting the proximity of any auxiliary device within its detection range. One or more detection elements may be used, and the number of detection elements and the number of wireless coils may be the same or different; this embodiment does not impose any limitations on this. The detection range of the charging device is determined based on the position of the detection elements and the detection method.

[0095] In some embodiments, the detection element includes a Hall effect detection element or a near field communication (NFC) detection element.

[0096] In some examples, Hall effect detection of auxiliary devices refers to a sensor technology that uses the Hall effect principle to detect changes in magnetic fields. In this embodiment, as the auxiliary device moves closer to the charging device, the Hall effect detection element can detect the presence and changes in the magnetic field emitted by the auxiliary device. Specifically, this embodiment can set a preset detection range based on the detected magnetic field strength, and when a change in magnetic field strength is detected within the preset detection range, it is determined that an auxiliary device exists within that preset detection range.

[0097] It should be noted that because Hall effect sensors can sensitively detect changes in magnetic fields, they can support proximity detection of one or more auxiliary devices.

[0098] In this embodiment of the disclosure, the Hall effect sensor can be positioned close to the wireless coil so that when the Hall effect sensor detects the presence of a nearby auxiliary device, a wireless charging signal is transmitted to the auxiliary device using the adjacent wireless coil.

[0099] In other examples, the NFC detection element utilizes short-range wireless communication technology to detect NFC tags disposed in an accessory device. Here, embodiments of this disclosure can set a preset detection range based on the detection distance of NFC detection, and when NFC tag information is obtained within the preset detection range, it is determined that an accessory device exists within that preset detection range.

[0100] It should be noted that since the NFC detection element can obtain NFC tag information, and the NFC tag information has an ID identifier, it supports proximity detection of one or more auxiliary devices.

[0101] Thus, by providing different types of detection elements for detecting auxiliary devices, this embodiment of the present disclosure improves the diversity and flexibility of the product; and by triggering the wireless charging function only when an auxiliary device is detected, power consumption can be fully saved, ensuring the use of other functions of the charging device itself.

[0102] In other embodiments of this disclosure, the detection element may also be a radio frequency identification (RFID) element, an ultra-wideband (UWB) sensor, or a Bluetooth sensor, etc.

[0103] In one example, the Bluetooth sensor can receive Bluetooth detection signals from an auxiliary device within the Bluetooth signal reception range; upon sensing a Bluetooth detection signal, it is determined that the detection element has detected an auxiliary device within the detection range of the charging device.

[0104] In other examples, the ultra-wideband (UWB) sensor can receive UWB detection signals from auxiliary devices within the UWB signal receiving range; upon sensing a UWB detection signal, it is determined that the detection element has detected the presence of an auxiliary device within the detection range of the charging device.

[0105] It should be noted that the embodiments of this disclosure can detect auxiliary devices located at different positions around the charging device using a Bluetooth sensor (or a UWB sensor); for example, the location of the auxiliary devices can be detected by Bluetooth sensors located at different positions in the charging device; or, this disclosure can also receive Bluetooth detection signals sent by auxiliary devices at different positions using a Bluetooth sensor, and determine the presence of auxiliary devices and the position of the auxiliary devices relative to the electronic devices by the signal reception time and orientation; thus, after determining the location of the auxiliary devices, if there are multiple wireless coils in the charging device, the wireless coil closest to the auxiliary device can be selected for wireless charging.

[0106] In some other examples, RFID tags can be installed in the auxiliary device, so that the RFID element in the charging device can send radio frequency signals and receive tag data returned by the RFID tag of at least one auxiliary device; thus, when the RFID element receives the tag data, it can determine that the detection element has detected the presence of an auxiliary device within the detection range of the charging device.

[0107] Here, the detection range of the above-mentioned electronic device can be set by the wavelength distance of the RFID radio frequency signal. In this way, by setting a detection element at one or more locations of the charging device, it is possible to detect whether there are auxiliary devices around the charging device.

[0108] The charging device in this embodiment of the present disclosure is further provided with a control circuit, which can be integrated into the central processing unit (CPU) of the charging device. It is electrically connected to at least one detection element and at least one wireless coil, and can acquire the detection signal of the detection element, and determine whether there are at least two auxiliary devices close to each other within the detection range of the charging device through the detection signal; and control the transmission of wireless charging signal by the wireless coil when it is determined that at least two auxiliary devices are close to each other.

[0109] Here, the embodiments of this disclosure can be configured from multiple aspects such as device cost, wiring difficulty, and control strategy to set a strategy for transmitting wireless charging signals through a wireless coil.

[0110] For example, to achieve fast charging of at least two auxiliary devices, embodiments of this disclosure can set up multiple wireless coils, and control at least two wireless coils to charge adjacent auxiliary devices respectively by using the positions of different wireless coils and the detected positions of auxiliary devices; here, when the charging device itself has sufficient remaining power, this scheme supports charging at least two auxiliary devices simultaneously. As another example, to save on the cost of setting up wireless coils and reduce the difficulty of wiring within the device, embodiments of this disclosure can also set up only one wireless coil. In this case, when there are at least two auxiliary devices, embodiments of this disclosure can use a control circuit to control the wireless coil to emit different wireless charging signals to support charging of a specific auxiliary device among the at least two auxiliary devices. Of course, in embodiments of this disclosure, considering the layout and cost requirements of the charging device, some coils can be set to charge only one auxiliary device, while others can support charging multiple auxiliary devices, improving the charging flexibility of the charging device.

[0111] It should be noted that when one of the detection elements in the charging device detects the presence of an auxiliary device nearby, and other detection elements do not detect the presence of an auxiliary device nearby, that is, when there is only one auxiliary device near the charging device, the above control circuit can control the wireless coil to emit a wireless charging signal to charge only that auxiliary device.

[0112] In this embodiment, when the detection element detects the presence of at least two auxiliary devices within the detection range, the charging device can use at least one wireless coil to charge at least two auxiliary devices. This makes the charging device and its auxiliary devices easier to carry and use together, alleviating the inconvenience of needing to carry separate charging devices for each auxiliary device. Furthermore, since this embodiment provides at least one wireless coil, it is possible to charge different auxiliary devices using different wireless charging signals from a single wireless coil, or to charge different auxiliary devices by transmitting wireless charging signals from multiple wireless coils respectively. This enhances the practicality and flexibility of the charging device in wirelessly charging multiple different auxiliary devices, further providing more possibilities for expanding the range of practical auxiliary devices available for the charging device.

[0113] In some embodiments, the wireless coil includes one, and the charging device further includes:

[0114] The first electrical output circuit is electrically connected to the wireless coil and is used to output AC signals;

[0115] A control circuit, electrically connected to the first electrical output circuit, is used to control the electrical parameters of the AC signal output by the first electrical output circuit based on the usage information of at least two auxiliary devices.

[0116] The different electrical parameters of the AC signal result in different wireless charging signals output by the wireless coil; furthermore, different wireless charging signals are used to charge different auxiliary devices.

[0117] Here, the first electrical output circuit can be mounted on the wireless chip, which can be set on the motherboard of the charging device or installed in a different position on the mid-frame from the motherboard of the charging device; the first electrical output circuit is equipped with a DC-AC conversion element, which has the ability to convert DC signals into AC signals.

[0118] In this embodiment of the present disclosure, the charging device further includes a power supply component, which includes a battery and a power management integrated circuit (PMIC), etc. The power supply component is electrically connected to the wireless chip and can output a DC signal to the wireless chip so that the wireless chip can convert the received DC signal into an AC signal. The DC signal carries power energy and is output to external auxiliary devices in sequence through the converted AC signal and the wireless charging signal.

[0119] It should be noted that the control circuit in this embodiment is also connected between the power supply component and at least one first electrical output circuit (wireless chip), so that the power supply component is controlled to output a DC signal or the first electrical output circuit (wireless chip) is controlled to receive a DC signal only when an auxiliary device is detected to be nearby.

[0120] For example, see Figure 2a and Figure 2b , Figure 2a This is a schematic diagram of the location of a wireless coil according to an exemplary embodiment. Figure 1 ; Figure 2b This is a schematic diagram illustrating the connection between a wireless coil and a wireless chip according to an exemplary embodiment. Figure 1 The charging device 1 has a wireless coil 11 and a wireless chip 14. The control circuit 13 is electrically connected to the power supply component 15 and the wireless chip 14 respectively, and is used to control the electrical parameters of the AC signal output by the wireless chip 14 according to the usage information of at least two auxiliary devices (first auxiliary device 21 and second auxiliary device 22).

[0121] In this embodiment, the wireless coil can be positioned at the corner of adjacent sides of the charging device, so that the wireless coil can be aligned with the wireless coils of the auxiliary devices located on adjacent sides, thereby enabling time-sharing charging of the auxiliary devices on both sides. It should be noted that two detection elements can be provided, each positioned on one of the two sides adjacent to the wireless coil, to detect the auxiliary devices approaching from those two sides.

[0122] Of course, in other embodiments, the present disclosure may also place the wireless coil in the central area of ​​the electronic device, so that the wireless coil can wirelessly charge one of the multiple auxiliary devices distributed around it.

[0123] Here, different electrical parameters of an AC signal can be represented by different parameters such as power, current, frequency, or phase of the AC signal; and different levels of power, current, frequency, or phase can cause a wireless coil to output different wireless charging signals, such as wireless charging signals with different amplitudes, frequencies, or bandwidths.

[0124] Thus, in this embodiment, a first matching relationship is pre-established between wireless charging signals with different signal states (amplitude, frequency, or bandwidth) and different types of auxiliary devices, and a second matching relationship is set between different parameters of the AC signal (such as power, current, frequency, or phase) and different signal states of the wireless charging signal. In this way, when the control circuit determines the target auxiliary device that needs to be charged based on the usage information of at least two auxiliary devices, it can obtain the signal state matching the target auxiliary device according to the first matching relationship and obtain the target electrical parameters according to the second matching relationship. In this way, the control circuit realizes wireless charging by controlling the wireless chip to output an AC signal with the target electrical parameters.

[0125] For example, if it is determined based on the stylus usage information and the touch keyboard usage information that the stylus needs to be charged first, the current parameters related to the stylus can be determined, thereby controlling the tablet's wireless chip to output a matching AC signal, so that the wireless coil outputs a wireless charging signal of the first frequency to transfer power to the stylus instead of the touch keyboard; when the stylus is charged to a specified level, the charging is switched to the touch keyboard, i.e., when the touch keyboard is the target accessory device, the current parameters related to the stylus can be determined, thereby controlling the wireless chip to output a matching AC signal, so that the wireless coil outputs a wireless charging signal of the second frequency to transfer power to the touch keyboard instead of the stylus.

[0126] It should be noted that, since the first matching relationship mentioned above is related to different types of auxiliary devices, when there are two identical auxiliary devices of the same type on adjacent sides of the charging device, the wireless charging signal emitted by the wireless coil at the same time can charge both of the same type of auxiliary devices simultaneously; however, when there are two auxiliary devices of different types on adjacent sides of the charging device, the wireless charging signal emitted by the wireless coil at the same time can only charge one auxiliary device, and the parameter signal state of the emitted wireless charging signal needs to be adjusted when switching charging.

[0127] In this embodiment of the disclosure, by setting a wireless coil and a first electrical output circuit (wireless chip) electrically connected to it, it is possible to wirelessly charge different auxiliary devices in a time-sharing manner while saving on structural design and reducing wiring difficulty.

[0128] In some embodiments, the wireless coil includes at least two, each wireless coil being disposed on a different side of the charging device;

[0129] The charging device also includes: a second power output circuit and a switching assembly;

[0130] The second electrical output circuit is electrically connected to the control circuit and is used to drive the wireless coil to transmit wireless charging signals under the action of the control circuit.

[0131] A switching assembly is connected to the connection lines between the second electrical output circuit and at least two wireless coils, respectively.

[0132] In this case, when the switching components are in different switching states, the connection lines between the second electrical output circuit and different wireless coils are in a conductive state.

[0133] Here, at least two wireless coils are provided, and they are distributed on different sides of the charging device. Each wireless coil can wirelessly charge auxiliary devices distributed on the same side.

[0134] The second electrical output circuit can also be mounted on the wireless chip and electrically connected to the power supply component and control circuit. It is used to convert the DC signal output by the power supply component into an AC signal under the action of the control circuit.

[0135] It should be noted that the second electrical output circuit and the first electrical output circuit can have the same device design. The purpose of distinguishing between the first and second in this disclosure is only to identify the same circuit appearing in different embodiments. Therefore, the wireless chip carried by the second electrical output circuit and the first electrical output circuit can also be the same chip. The same applies to the third electrical output circuit proposed below. The embodiments of this disclosure will not be described in detail below.

[0136] See Figure 3a , Figure 3a This is a schematic diagram showing the location of a wireless coil according to an exemplary embodiment; wherein, in conjunction with Figure 1 The charging device 1 has two wireless coils 11, namely a first wireless coil 111 and a second wireless coil 112. The two wireless coils 11 are distributed on opposite sides of the charging device 1. The first wireless coil 111 is used to electromagnetically couple with the wireless coil of the first auxiliary device 21, and the second wireless coil 112 is used to electromagnetically couple with the wireless coil of the second auxiliary device 22.

[0137] See in some examples Figure 3b , Figure 3b This is a second schematic diagram illustrating the connection between a wireless coil and a wireless chip according to an exemplary embodiment; here, there is one wireless chip 14, which establishes an electrical connection with at least two wireless coils 11 through a switching assembly 16. In this example, the control circuit 13 is also connected to the switching assembly 16, and by controlling different switching states of the switching assembly 16, the connection line between the wireless chip 14 and the first wireless coil 111 or the second wireless coil 112 is made conductive.

[0138] Here, when the connection line between the wireless chip 14 and the first wireless coil 111 is in a conductive state, the DC signal output by the power supply component 15 can be converted into an AC signal and output to the first wireless coil 111 to drive the first wireless coil 111 to emit a wireless charging signal, thereby wirelessly charging the first auxiliary device 21 (such as a stylus) located on the same side. When the connection line between the wireless chip 14 and the second wireless coil 112 is in a conductive state, the second wireless coil 112 is driven to emit a wireless charging signal, thereby charging the second auxiliary device 22 (such as a touch keyboard) located on the same side.

[0139] It should be noted that a switching assembly may include one switching element or at least two switching elements.

[0140] For example, when a switching element is included, the input terminal of the switching element is connected to the wireless chip, and multiple output terminals are respectively connected to each wireless coil. The different switching states of the switching component are represented by the connection lines between the input terminal and different output terminals being in a conducting state; of course, at any given time, the switching component is only in one switching state.

[0141] For example, combining Figure 3b When the switch assembly 16 includes two switch elements, namely the first switch element 161 and the second switch element 162, the first switch element 161 is connected between one output terminal of the wireless chip 14 and the first wireless coil 111, and the second switch element 162 is connected between the other output terminal of the wireless chip 14 and the second wireless coil 112. Here, the different switching states of the switch assembly are respectively represented as follows: the first switch element 161 is in the closed state and the second switch element 162 is in the on state; or, the first switch element 161 is in the on state and the second switch element 162 is in the closed state.

[0142] In this embodiment of the disclosure, the switching element may be in the form of a mechanical switch, a field-effect transistor, or a relay, etc., and this embodiment of the disclosure does not limit it.

[0143] In this example, by using a second electrical output circuit (wireless chip) to switch between multiple wireless coils, it is possible not only to wirelessly charge different auxiliary devices using different wireless coils, but also to reduce the number of wireless chips in the charging device, thus effectively reducing the cost of the charging device. Furthermore, it is possible to achieve time-sharing wireless charging for multiple auxiliary devices, reducing the charging pressure and energy consumption of the charging device and ensuring the normal operation of the charging device itself.

[0144] In some embodiments, the wireless coil includes at least two, each wireless coil being disposed on a different side of the charging device;

[0145] The charging device also includes at least two third electrical output circuits; both of the at least two third electrical output circuits are electrically connected to the control circuit.

[0146] Each of the third electrical output circuits is electrically connected to a different wireless coil and is used to drive the different wireless coils to transmit wireless charging signals under the action of the control circuit.

[0147] Here, at least two wireless coils are provided, and they are distributed on different sides of the charging device. Each wireless coil can wirelessly charge auxiliary devices distributed on the same side.

[0148] In this embodiment, the third electrical output circuit is mounted on the wireless chip and electrically connected to the power supply component and control circuit. It is equipped with a DC-AC conversion element, enabling it to convert DC signals into AC signals and output AC signals. This disclosure provides multiple third electrical output circuits, each electrically connected to a corresponding wireless coil, for outputting AC signals to the corresponding wireless coil to drive it to transmit wireless AC signals.

[0149] See Figure 3c , Figure 3c This is a schematic diagram (3) illustrating the connection between a wireless coil and a wireless chip according to an exemplary embodiment; combined with Figure 3a and Figure 3c There are at least two wireless chips 14 and at least two wireless coils 11, and the number of wireless chips 14 and wireless coils 11 is the same; wherein, the first wireless chip 141 is electrically connected to the first wireless coil 111, and the second wireless chip 142 is electrically connected to the second wireless coil 112.

[0150] Here, when the control circuit 13 detects the presence of at least two auxiliary devices, it can use a designated wireless chip 14 to convert the DC signal output by the power supply component 15 into an AC signal based on the location of the auxiliary devices and the location of the wireless coil. The AC signal is then used to drive the connected wireless coil 11 to transmit a wireless charging signal, thereby wirelessly charging the auxiliary devices located on the same side as the wireless coil 11.

[0151] In this example, by setting up multiple third-party power output circuits, each of which is connected to a wireless coil, the charging device has two independent wireless charging structures, thereby enabling the simultaneous charging of different auxiliary devices using different wireless coils and improving charging efficiency.

[0152] In other embodiments, the wireless coils include at least two, and the charging device also includes a fourth electrical output circuit (which functions the same as the aforementioned first, second, and third electrical output circuits). Here, the number of wireless chips mounted on the wireless coils and the fourth electrical output circuit can be different. Some wireless chips can be connected to multiple wireless coils through a switching component, while some wireless chips can be connected to a single wireless coil. Thus, the charging device can charge multiple auxiliary devices with multiple coils, or charge one auxiliary device with one coil, or charge multiple auxiliary devices with one coil through different wireless charging signals, thereby improving the flexibility of wireless charging.

[0153] In some embodiments, the detection elements include at least two;

[0154] Each detection element is located on the same side of the charging device along with a different wireless coil.

[0155] Here, in the case of at least two wireless coils, the present disclosure embodiment can set the number of detection elements to be the same as the number of wireless coils, and set one detection element to correspond to one wireless coil, and distribute them on the same side of the charging device.

[0156] For example, see Figure 4a , Figure 4a This is a schematic diagram showing the positional distribution of the detection element and the wireless coil according to an exemplary embodiment; wherein, a wireless coil 11 and a detection element 12 are provided on the first side of the charging device 1; and another wireless coil 11 and another detection element 12 are provided on the second side of the charging device 1.

[0157] In this embodiment, both the first and second side detection elements 12 can be Hall effect detection elements or NFC detection elements. It should be noted that the detection element proposed in this disclosure can consist of one or more detection units; for example, a detection element can be equipped with one or more Hall effect detectors.

[0158] Thus, the embodiments of this disclosure can flexibly control the wireless coil on the same side to charge the auxiliary device on the same side when the detection element detects the auxiliary device, thereby ensuring the rationality and effectiveness of wireless charging.

[0159] In some embodiments, the charging device further includes:

[0160] At least two sets of magnetic components are disposed on different sides of the charging device;

[0161] Each set of magnetic components is used to achieve magnetic adsorption with different auxiliary equipment.

[0162] Here, in this embodiment of the present disclosure, at least two sets of magnetic components are provided on different sides of the charging device. These magnetic components are capable of magnetic attraction with magnetic mating components provided in at least two different auxiliary devices, thereby enabling each auxiliary device to be relatively fixed to the charging device. Each set of magnetic components includes one or more magnets.

[0163] See Figure 4b , Figure 4b This is a schematic diagram illustrating the positional distribution of the magnetic component and the wireless coil according to an exemplary embodiment; combined with Figure 4b and Figure 2a The charging device 1 includes two sets of magnetic components 17, which are distributed on different sides of the charging device 1. Each set of magnetic components 17 includes two magnets, a wireless coil 11 and a detection element 12 are disposed between the two magnets of the set of magnetic components; each magnet is magnetically attracted to the magnetic mating component of the nearby auxiliary device.

[0164] It should be noted that the magnetic component has an adsorption function, but it cannot identify the presence of auxiliary devices; for example, when a magnet that matches the magnetic component is also close, adsorption will also occur, but since the detection element cannot identify it as an auxiliary device, the charging function will not be triggered.

[0165] This embodiment of the invention, by setting at least two sets of magnetic components, can fix at least two different auxiliary devices to different sides of the charging device, thereby increasing the stability of the wireless charging process of the charging device for the auxiliary devices.

[0166] In some embodiments, the charging device further includes:

[0167] Communication components are used to obtain usage information from auxiliary devices;

[0168] A control circuit, electrically connected to a communication component, is used to control a wireless coil to transmit a wireless charging signal to a target device among the at least two auxiliary devices, based on usage information from at least two auxiliary devices.

[0169] In some examples, the communication component includes a Bluetooth communication component or an NFC component; thus, embodiments of this disclosure can obtain the usage information of the accessory device through Bluetooth communication signals when the accessory device has Bluetooth enabled; and can also obtain the tag information in the accessory device through the NFC component when the accessory device has an NFC tag, thereby parsing the tag information to obtain the usage information of the accessory device.

[0170] It should be noted that when the above-mentioned detection element is a Bluetooth sensor, the communication component and the detection element of this disclosure can be integrated to simultaneously realize the detection of the auxiliary device and the acquisition of usage information; when the above-mentioned detection element is an NFC detection element, the communication component and the detection element of this disclosure can also be integrated to simultaneously realize the detection of the auxiliary device and the acquisition of usage information.

[0171] In some other examples, the communication component also includes a Wi-Fi antenna component; thus, embodiments of this disclosure can obtain usage information of the auxiliary device via Wi-Fi communication signals when the auxiliary device and the charging device are on the same local area network and have Wi-Fi connectivity. It should be noted that in this case, the communication component is electrically connected to the control circuit and connected to the detection element on different connection ports of the control circuit.

[0172] In this embodiment, the usage information of the auxiliary device includes the status information and device type of the auxiliary device; the status information of the auxiliary device includes the remaining battery power and device temperature, etc. When the communication component obtains the status information and device type of at least two auxiliary devices, a target auxiliary device can be determined from among the at least two auxiliary devices; wherein, the target auxiliary device is the auxiliary device for which wireless charging is currently required; the target auxiliary device can be one or more, and this embodiment does not limit this.

[0173] It should be noted that the specific methods for determining the target auxiliary device from at least two auxiliary devices and for controlling the wireless coil to wirelessly charge the target auxiliary device in this example are described in the embodiments of the charging method section below, and will not be repeated here.

[0174] This disclosure can utilize communication components to obtain usage information of different auxiliary devices, and select the auxiliary device that needs to be charged by using the information, which can effectively improve the rationality and efficiency of charging the charging device for different auxiliary devices.

[0175] This disclosure also proposes a charging method for use in the charging device described above, for wirelessly charging at least two auxiliary devices of the charging device.

[0176] See Figure 5 , Figure 5 This is a flowchart illustrating a charging method according to an exemplary embodiment. Figure 1 The charging method proposed in this embodiment can be implemented by the following steps:

[0177] Step 501: If at least two auxiliary devices are detected within the detection range of the charging device, control the wireless coil of the charging device to transmit wireless charging signals to the at least two auxiliary devices.

[0178] Here, since the charging device is equipped with wireless charging, the above charging method can be applied to the charging device, and the auxiliary devices can be wirelessly charged through the control circuit of the charging device.

[0179] Taking a tablet computer as an example, if a stylus is attracted to a magnetic component on one side of the tablet computer and the detection element on that side detects the stylus, the wireless coil can be controlled to transmit a wireless charging signal to the stylus. If a touch keyboard is attracted to a magnetic component on the other side of the tablet computer and the detection element on that side detects the touch keyboard, the wireless coil can be controlled to transmit a wireless charging signal to the touch keyboard.

[0180] If objects are attracted to the magnetic components on different sides of the tablet computer, and the detection elements on different sides detect the auxiliary devices, that is, if at least two auxiliary devices are detected within the detection range of the charging device, the embodiments of this disclosure can control different wireless coils to charge the stylus and touch keyboard on different sides simultaneously or at different times, depending on the configuration of the wireless coils and the configuration of the wireless chip; or, control the same wireless coil to emit different wireless charging signals to wirelessly charge one of the auxiliary devices, the stylus and touch keyboard.

[0181] In this embodiment, when the detection element detects the presence of at least two auxiliary devices within the detection range, the charging device can use at least one wireless coil to charge at least two auxiliary devices. This makes the charging device and its auxiliary devices easier to carry and use together, alleviating the inconvenience of needing to carry separate charging devices for each auxiliary device. Furthermore, since this embodiment provides at least one wireless coil, it is possible to charge different auxiliary devices using different wireless charging signals from a single wireless coil, or to charge different auxiliary devices by transmitting wireless charging signals from multiple wireless coils respectively. This enhances the practicality and flexibility of the charging device in wirelessly charging multiple different auxiliary devices, further providing more possibilities for expanding the range of practical auxiliary devices available for the charging device.

[0182] In some embodiments, when at least two auxiliary devices are detected within the detection range of the charging device, controlling the wireless coil of the charging device to transmit wireless charging signals to the at least two auxiliary devices includes:

[0183] If at least two auxiliary devices are detected within the detection range of the charging device, obtain the usage information of at least two auxiliary devices;

[0184] Based on the usage information of at least two auxiliary devices, identify the target auxiliary device from among the at least two auxiliary devices;

[0185] Control the wireless coil to transmit wireless charging signals to the target accessory device.

[0186] Here, in this embodiment of the disclosure, when at least two auxiliary devices are detected within the detection range of the charging device, the usage information of at least two auxiliary devices can be obtained through the aforementioned Bluetooth communication component or NFC component. The usage information of the at least two auxiliary devices includes, but is not limited to, the device type and status information of the at least two auxiliary devices; the status information includes, but is not limited to, remaining battery power, device temperature, power consumption, and power on / off status.

[0187] This embodiment of the disclosure obtains usage information from at least two auxiliary devices, identifies a suitable target auxiliary device among the at least two auxiliary devices, and uses a wireless coil set in the charging device to transmit a wireless charging signal to charge it.

[0188] It should be noted that the usage information of auxiliary devices can characterize the current usage status of the auxiliary devices. This disclosure can determine which auxiliary device needs charging more by using the usage status, and set the auxiliary device with higher demand as the target auxiliary device. For example, if a stylus and a touch keyboard are simultaneously attached to a tablet computer, this disclosure embodiment can obtain the power-on / off status and power consumption of the stylus and touch keyboard, and prioritize charging the device that is powered on. If both are powered on, the device with lower power consumption is prioritized for charging.

[0189] Of course, the embodiments of this disclosure can also set charging priorities according to device type. When at least two auxiliary devices exist at the same time, the target auxiliary device to be charged first can be selected according to the charging priority. For example, if a stylus and a touch keyboard are simultaneously attached to a tablet computer, the touch keyboard is prioritized as the target auxiliary device and charged accordingly.

[0190] For example, when there are two auxiliary devices, a stylus and a keyboard, around a tablet computer, this embodiment of the disclosure can obtain the remaining power of the stylus and keyboard respectively through a Bluetooth component or an NFC component, and prioritize the auxiliary device with lower remaining power as the target auxiliary device. Taking the stylus with lower power as an example, this disclosure also obtains the device temperature of the stylus in real time during the charging process. If the device temperature of the stylus exceeds the upper temperature limit (cannot continue charging), the keyboard is selected as the next target auxiliary device, thus realizing time-sharing switching charging.

[0191] Thus, by acquiring usage information from at least two auxiliary devices, this embodiment of the present disclosure can determine the target auxiliary device most suitable for charging at different times, thereby improving the rationality of the charging process and meeting the actual charging needs of each auxiliary device.

[0192] In some embodiments, the above-mentioned control of the wireless coil to transmit a wireless charging signal to the target accessory device includes:

[0193] In cases where there are at least two wireless coils, the target wireless coil corresponding to the target accessory device is identified among the at least two wireless coils.

[0194] Control the target's wireless coil to transmit a wireless charging signal to the target's auxiliary device;

[0195] In the case of a wireless coil, the target electrical parameters corresponding to the target accessory are determined, and the wireless coil is controlled to transmit a wireless charging signal that matches the target electrical parameters.

[0196] In one example, when at least two wireless coils are included, embodiments of this disclosure can determine the target wireless coil corresponding to the target accessory device from among the at least two wireless coils. The target wireless coil corresponding to the target accessory device can be a wireless coil located on the same side of the charging device as the target accessory device, or it can be a designated wireless coil; this disclosure does not impose any limitations on this. Here, after determining the target wireless coil, a wireless chip connected to the target wireless coil drives the target wireless coil to transmit a wireless charging signal to the target accessory device to charge it.

[0197] For example, combining Figure 3a and Figure 3b If the target accessory is the first accessory 21 (such as a stylus), then the first wireless coil 111 is the target wireless coil; at this time, the first switch element 161 is closed, and the wireless chip 14 is electrically connected to the first wireless coil 111, thereby controlling the first wireless coil 111 to emit a wireless charging signal. If the target accessory is the second accessory 22 (such as a touch keyboard), then the second wireless coil 112 is the target wireless coil; at this time, the second switch element 162 is closed, and the wireless chip 14 is electrically connected to the second wireless coil 112, controlling the second wireless coil 112 to emit a wireless charging signal.

[0198] For example, combining Figure 3a and Figure 3c If the target accessory is the first accessory 21 (such as a stylus), then the first wireless coil 111 is the target wireless coil; in this case, the first wireless chip 141 is controlled to drive the first wireless coil 111 to transmit a wireless charging signal. If the target accessory is the second accessory 22 (such as a touch keyboard), then the second wireless coil 112 is the target wireless coil; in this case, the second wireless chip 142 is controlled to drive the second wireless coil 11 to transmit a wireless charging signal.

[0199] In another example, where the wireless coil includes at least one, embodiments of this disclosure can obtain the target electrical parameters based on the first and second matching relationships presented above; thus, the control circuit controls the wireless chip to output an AC signal of the target electrical parameters to drive the wireless coil to output a wireless charging signal of a specified signal state, such as a specified frequency, to power the target accessory device.

[0200] For example, in combination Figure 2a and Figure 2b If the target accessory is the first accessory 21 (such as a stylus), the wireless chip 14 drives the wireless coil 11 to transmit a wireless charging signal of the first frequency to power the first accessory 21. If the target accessory is the second accessory 22 (such as a touch keyboard), the wireless chip 14 drives the wireless coil 11 to transmit a wireless charging signal of the second frequency to power the second accessory 22.

[0201] In this embodiment of the disclosure, when there are one or more wireless coils, the present embodiment of the disclosure can achieve accurate charging of the target accessory device, thereby improving the flexibility and effectiveness of wireless charging.

[0202] In some embodiments, determining the target auxiliary device from at least two auxiliary devices based on usage information from at least two auxiliary devices includes:

[0203] Based on the status information of the charging device and the usage information of at least two auxiliary devices, identify the target auxiliary device from among the at least two auxiliary devices;

[0204] The status information of the charging device includes the remaining power of the charging device and / or the device temperature.

[0205] Here, considering that the charging device also has a variety of other functions besides wireless charging, the embodiments of this disclosure also combine the current status information of the charging device to determine which auxiliary device is currently suitable for charging. That is, based on the status information of the charging device and the usage information of at least two auxiliary devices, the target auxiliary device is determined among at least two auxiliary devices.

[0206] For example, in this embodiment of the present disclosure, the device temperature of the charging device can be used to determine the time during which the auxiliary device can be continuously charged; and based on its own remaining power and the remaining power of at least two auxiliary devices, it can be determined which auxiliary device is better to charge during the time during which the charging can be continuously charged; for example, if the stylus has 50% remaining power and the touch keyboard has only 5% remaining power, even if the stylus is charged, it cannot be fully charged. Therefore, the touch keyboard can be prioritized as the target auxiliary device.

[0207] Of course, in some other examples, the aforementioned status information may also include the status of the foreground running program of the charging device. Thus, when it is identified that the foreground running program is related to the function of the auxiliary device (such as the writing interface of a stylus or the typing interface of a touch keyboard), the relevant auxiliary device is identified as a candidate auxiliary device; and the usage information of the auxiliary device is used to determine whether to use it as the target auxiliary device. For example, if the usage information of the auxiliary device indicates that its battery is low, it is used as the target auxiliary device; if the auxiliary device is fully charged, it is not used as the target auxiliary device.

[0208] This embodiment of the disclosure, by combining the status information of the charging device and the usage information of the auxiliary device, can target the auxiliary device to be charged at different time periods, thereby improving the rationality and flexibility of charging.

[0209] In some embodiments, determining a target auxiliary device from at least two auxiliary devices based on the status information of the charging device and the usage information of at least two auxiliary devices includes:

[0210] When the device temperature of the charging device is lower than the first temperature threshold, the remaining power of the charging device is obtained;

[0211] If the remaining power of the charging device is greater than or equal to the first power threshold, the target auxiliary device is determined based on the status information and / or device type of at least two auxiliary devices.

[0212] If the remaining power of the charging device is less than a first power threshold and greater than or equal to a second power threshold, the target auxiliary device is determined based on the device types of at least two auxiliary devices; wherein the second power threshold is less than the first power threshold.

[0213] The above charging method also includes:

[0214] If the device temperature of the charging device is greater than or equal to a first temperature threshold, or if the remaining power of the charging device is less than a second power threshold, the wireless coil is controlled not to emit a wireless charging signal.

[0215] Here, the first temperature threshold is preset and is the critical temperature value at which the charging device can start discharging. If the device temperature of the charging device is lower than the first temperature threshold, it indicates that the current temperature rise of the charging device is low and there may be no high-power processes running. At this time, it is suitable to charge the auxiliary devices. Therefore, the remaining power of the charging device is obtained, and it is determined whether to charge the auxiliary devices or which auxiliary devices to charge based on the remaining power. On the other hand, if the device temperature of the charging device is greater than or equal to the first temperature threshold, it indicates that the current temperature rise of the charging device is high and there may be high-power processes running. At this time, it is not suitable to charge the auxiliary devices.

[0216] For example, the first temperature threshold mentioned above can be set between 45 degrees Celsius (°C) and 50°C, such as 48°C.

[0217] In this embodiment of the present disclosure, when the device temperature is less than a first temperature threshold, by obtaining the remaining power of the charging device, the power range of the remaining power can be determined, thereby determining whether to charge an auxiliary device, or which auxiliary device to charge.

[0218] Here, the first power threshold indicates that the current remaining power of the charging device is sufficient to support the charging of any auxiliary device; therefore, when the remaining power of the charging device is greater than or equal to the first power threshold, the embodiments of this disclosure can select a suitable auxiliary device for charging from at least two auxiliary devices based on the status information and / or device type of at least two auxiliary devices.

[0219] The second power threshold is lower than the first power threshold. The power range between the first and second power thresholds represents the excess power of the tablet computer beyond its own functions, which is only used to charge some auxiliary devices. Therefore, when the remaining power of the charging device is less than the first power threshold but greater than or equal to the second power threshold, this embodiment of the disclosure determines, based on the device types of at least two auxiliary devices, which has a faster charging speed and a smaller total battery capacity, and then selects the auxiliary device of the specified device type as the target auxiliary device.

[0220] For example, when a tablet computer has both a stylus and a touch keyboard, the touch keyboard is considered as the target accessory device. The first battery threshold is between 20% and 30%, for example, 20%; the second battery threshold is between 5% and 10%, for example, 5%.

[0221] Based on the above example analysis, it can be understood that when the device temperature of the charging device is greater than or equal to the first temperature threshold, or when the remaining power of the charging device is less than the second power threshold, the charging device is not suitable for outputting power. Therefore, the power supply component is controlled not to output DC power signal, or the wireless chip is controlled not to output AC power signal, so that the wireless coil does not transmit wireless charging signal.

[0222] It should be noted that, in this embodiment of the present disclosure, the device temperature and remaining power of the charging device are detected during the charging time of any auxiliary device. When the device temperature of the charging device is greater than or equal to a first temperature threshold, or the remaining power of the charging device is less than a second power threshold, wireless charging is immediately stopped.

[0223] This disclosure embodiment, by combining the device temperature and remaining power of the charging device with the device type and remaining power of the auxiliary device, can determine a more suitable target auxiliary device, thereby improving the rationality and flexibility of charging.

[0224] In some embodiments, determining the target auxiliary device based on the status information and / or device type of at least two auxiliary devices includes:

[0225] If there are different remaining powers among at least two remaining powers of at least two auxiliary devices, the auxiliary device with the smallest remaining power shall be selected as the target auxiliary device.

[0226] If at least two of the auxiliary devices have the same remaining power, the target auxiliary device is determined based on the device type of the at least two auxiliary devices.

[0227] In some examples, if at least two accessory devices have different remaining battery levels, the accessory device with the lowest remaining battery level is selected as the target accessory device; that is, the accessory device with the lowest battery level is charged first.

[0228] In other examples, if at least two auxiliary devices have the same remaining battery power, the target auxiliary device is determined based on the device type of the at least two auxiliary devices. For example, embodiments of this disclosure may set a default priority in the charging device based on the auxiliary device type, and select the auxiliary device with the highest device type priority as the target auxiliary device.

[0229] Thus, the embodiments of this disclosure can identify the charging needs of multiple auxiliary devices based on their power status, thereby selecting the appropriate target auxiliary device and improving the charging effect.

[0230] In some embodiments, the charging method further includes:

[0231] If the current target auxiliary device's device temperature is greater than or equal to a second temperature threshold, or the current target auxiliary device's remaining power is greater than or equal to a third power threshold, at least one first candidate auxiliary device is determined from at least two auxiliary devices; wherein the first candidate auxiliary device is different from the current target auxiliary device, and the third power threshold is greater than the first power threshold;

[0232] Based on the device temperature and / or remaining power of at least one first candidate accessory device, determine the next target accessory device, or control the wireless coil to stop emitting wireless charging signals.

[0233] Here, the second temperature threshold indicates that the temperature rise of the auxiliary device is too high and it is not suitable to continue to input power; while the third power threshold is greater than the first power threshold, indicating that the auxiliary device is in a fully charged state or in a state where it does not need to continue charging.

[0234] For example, the second temperature threshold is between 35°C and 45°C, such as 40°C; the third power threshold is between 80% and 100%, such as 100%.

[0235] During the process of determining and charging the current target auxiliary device, if the control circuit determines that the device temperature of the current target auxiliary device is greater than or equal to a second temperature threshold, or the remaining power of the current target auxiliary device is greater than or equal to a third power threshold, then among at least two auxiliary devices, each auxiliary device other than the current target auxiliary device is selected as the first candidate auxiliary device.

[0236] Here, after identifying at least one first candidate auxiliary device, if the device temperature of the first candidate auxiliary device is lower than a second temperature threshold and the remaining battery power is lower than a third battery power threshold, then it is designated as the target auxiliary device. It should be noted that if multiple first candidate auxiliary devices meet the above conditions, the auxiliary device with the lowest battery power (or the auxiliary device with the lowest device temperature) is designated as the target auxiliary device. If no first candidate auxiliary device meets the above conditions, charging is stopped, i.e., the wireless coil is controlled to stop emitting wireless charging signals.

[0237] The embodiments disclosed herein can determine the next target auxiliary device based on the actual situation of each auxiliary device when the current target auxiliary device is not suitable or does not need to continue charging, thus realizing time-sharing charging of different auxiliary devices; and can also stop wireless charging in a timely manner when the next target auxiliary device cannot be determined, ensuring the rationality and effectiveness of charging and reducing power consumption waste.

[0238] In some embodiments, determining the target auxiliary device based on the status information and / or device type of at least two auxiliary devices includes:

[0239] If at least two of the remaining powers of at least two auxiliary devices are greater than or equal to the fourth power threshold, the target auxiliary device is determined based on the auxiliary device being of the first type.

[0240] If at least two of the remaining batteries of at least two auxiliary devices are less than the fourth battery threshold, the target auxiliary device is determined based on the auxiliary device being of type two; wherein, type one and type two are different.

[0241] If at least one of the remaining power of at least two auxiliary devices is greater than or equal to a fourth power threshold, and at least one of the remaining power is less than the fourth power threshold, the target auxiliary device is determined based on the at least one auxiliary device with a remaining power less than the fourth power threshold.

[0242] Here, different types of auxiliary devices have different usage frequencies and application scenarios. Therefore, this embodiment sets a fourth power threshold and uses the fourth power threshold to determine which type of auxiliary device the charging device should prioritize charging and using at this time. For example, the fourth power threshold can be between 45% and 55%, such as 50%.

[0243] For example, taking a tablet computer's stylus and keyboard as an example, if the stylus and keyboard are detected and both of the two accessories have a remaining battery level of 50% or higher, the stylus is identified as the target accessory; if both of the accessories have a remaining battery level of less than 50%, the keyboard is identified as the target accessory.

[0244] It should be noted that the rule of prioritizing charging based on the first or second type for different remaining battery levels is determined in advance based on factors such as usage frequency, battery capacity, and charging rate, which better suits the charging scenario and the user's needs for auxiliary devices.

[0245] In the example above, if the remaining battery levels of the stylus and keyboard are respectively greater than or equal to 50% and less than 50%, the accessory with less than 50% battery will be prioritized for charging. In other examples, if the remaining battery levels of the stylus and keyboard are respectively greater than or equal to 50% and less than 50%, the second type of accessory will be prioritized for charging, i.e., the keyboard will be charged first.

[0246] In this embodiment of the invention, when the charging device's temperature and remaining power both support flexible charging of multiple auxiliary devices, a fourth power threshold is set to analyze which of the remaining power of at least two auxiliary devices is more suitable as the target auxiliary device. This better meets the charging scenario and the user's needs for charging and using auxiliary devices.

[0247] In some embodiments, the charging method further includes:

[0248] If the current target auxiliary device is of type 1, and the remaining power of the current target auxiliary device is greater than or equal to the fifth power threshold, then at least one second candidate auxiliary device is determined among at least two auxiliary devices.

[0249] If the current target auxiliary device is of type 2, and the remaining power of the current target auxiliary device is greater than or equal to the sixth power threshold, then at least one second candidate auxiliary device is determined among at least two auxiliary devices; wherein the second candidate auxiliary device is different from the current target auxiliary device, the fifth power threshold and the sixth power threshold are different, and both are greater than the fourth power threshold;

[0250] Based on the device temperature and / or remaining power of at least one second candidate auxiliary device, determine the next target auxiliary device from among at least one second candidate auxiliary device, or control the wireless coil to stop transmitting wireless charging signals.

[0251] Here, there is a difference between being fully charged and not needing to continue charging for different types of auxiliary devices; therefore, this embodiment of the present disclosure sets a fifth power threshold for the first type of auxiliary device, which indicates that the first type of auxiliary device is in a state where it does not need to continue to supply power and can be used normally; correspondingly, this embodiment of the present disclosure sets a sixth power threshold for the second type of auxiliary device, which indicates that the second type of auxiliary device is in a state where it does not need to continue to supply power and can be used normally.

[0252] For example, if the first type is a stylus type, the fifth battery threshold is 100%; if the second type is a touch keyboard type, the sixth battery threshold is 80%.

[0253] Thus, in this embodiment of the present disclosure, if the current target accessory device is of the first type, it determines whether the remaining power of the current target accessory device is greater than or equal to a fifth power threshold; if the current target accessory device is of the second type, it determines whether the remaining power of the current target accessory device is greater than or equal to a sixth power threshold; if so, at least one second candidate accessory device is determined among at least two accessory devices; if not, wireless charging of the current target accessory device continues, indicating that the condition that charging is not required (whether the remaining power of the current target accessory device is greater than or equal to the fifth power threshold) or the condition that charging cannot continue (the device temperature of the charging device is greater than or equal to a first temperature threshold, or the remaining power of the charging device is less than a second power threshold) is met.

[0254] Here, when at least one second candidate auxiliary device is obtained, if the device temperature of at least one second candidate auxiliary device of the first type is less than the second temperature threshold and the remaining power is less than the fifth power threshold, then it is regarded as the target auxiliary device; if the device temperature of at least one second candidate auxiliary device of the second type is less than the second temperature threshold and the remaining power is less than the sixth power threshold, then it is regarded as the target auxiliary device.

[0255] It should be noted that if multiple candidate auxiliary devices meet the above conditions, the auxiliary device with the lowest battery level (or the auxiliary device with the lowest temperature) will be selected as the target auxiliary device. If no candidate auxiliary device meets the above conditions, charging will stop, meaning the wireless coil will stop emitting wireless charging signals.

[0256] The embodiments disclosed herein can determine the next target auxiliary device based on the actual situation of each auxiliary device when the current target auxiliary device is not suitable or does not need to continue charging, thus realizing time-sharing charging of different auxiliary devices; and can also stop wireless charging in a timely manner when the next target auxiliary device cannot be determined, ensuring the rationality and effectiveness of charging and reducing power consumption waste.

[0257] The following description uses a tablet computer as the charging device and a stylus and keyboard as the auxiliary devices to illustrate the charging device and method proposed in the embodiments of this disclosure.

[0258] Here, the steps for the tablet to wirelessly charge the stylus and keyboard can be specifically implemented based on the wireless coil and the aforementioned electrical output circuits installed in the tablet (the following explanation uses the example of the electrical output circuits being mounted on the wireless chip):

[0259] In the first example, such as Figure 3a and 3c As shown, the first wireless coil 111 is electrically connected to the first wireless chip 141; the second wireless coil 112 is connected to the second wireless chip 142. The control circuit 13 is electrically connected to the power supply assembly and the first wireless chips 141 and 142, respectively.

[0260] Thus, in this example, there are two separately configured wireless charging systems. The tablet can simultaneously control the charging of the stylus and the keyboard. Naturally, it can also select which accessory to charge according to the actual situation based on the charging method proposed in the embodiments of this disclosure. Although this approach has higher chip and wiring costs, it can save charging time and improve charging flexibility.

[0261] In the second example, such as Figure 3a and Figure 3b As shown, a wireless chip 14 is connected to a first wireless coil 111 via a first switching element 161, and is electrically connected to a second wireless chip 142 via a second switching element 162. The control circuit 13 is electrically connected to the power supply assembly, the wireless chip 14, and the two switching elements respectively.

[0262] Here, the first auxiliary device 21 is a stylus, and the second auxiliary device 22 is a touch keyboard. If the stylus needs to be charged, the first switch element 161 is closed and the second switch element 162 is turned off; if the touch keyboard needs to be charged, the first switch element 161 is turned off and the second switch element 162 is closed.

[0263] Thus, this example uses a wireless chip and two switching elements to control different wireless coils to charge different auxiliary devices, achieving time-sharing control of multiple auxiliary devices, and saving the setup of a wireless chip, thereby reducing costs.

[0264] In the third example, such as Figure 2a and Figure 2b As shown, the charging device 1 has a wireless coil 11 and a wireless chip 14. The control circuit 13 is electrically connected to the power supply component 15 and the wireless chip 14 respectively, and is used to control the electrical parameters of the AC signal output by the wireless chip 14 according to the usage information of the first auxiliary device 21 and the second auxiliary device 22.

[0265] Here, the first auxiliary device 21 is a stylus, and the second auxiliary device 22 is a touch keyboard. If the stylus needs to be charged, the wireless coil 11 is controlled to transmit a wireless charging signal at frequency 1; if the touch keyboard needs to be charged, the wireless coil 11 is controlled to transmit a wireless charging signal at frequency 2.

[0266] Thus, in this example, a single wireless chip is used to control the wireless coil to switch between transmitting wireless charging chips at different frequencies, enabling time-sharing wireless charging for different auxiliary devices. This improves the flexibility of the tablet computer for wireless charging auxiliary devices, and by using only one wireless coil and one wireless chip, the device cost is greatly reduced, making it more practical.

[0267] In some embodiments, see Figure 6 , Figure 6 This is a schematic flowchart of a charging method according to an exemplary embodiment. Thus, the charging method proposed in this embodiment can be implemented by the following steps 601 to 611;

[0268] Step 601: Detect whether a stylus and a touch keyboard are present within the detection range of the tablet computer using a detection element.

[0269] Here, if so, step 602 is performed; at least two auxiliary devices are detected by a Hall effect sensor or an NFC sensor, and these two auxiliary devices are magnetically attached to different sides of the tablet computer via magnetic mating parts.

[0270] Step 602: Obtain the device temperature and remaining battery power of the tablet computer.

[0271] Step 603: Determine if the device temperature of the tablet is greater than or equal to 48°C; if not, proceed to step 604; if yes, proceed to step 605.

[0272] Step 604: Stop wireless charging.

[0273] Here, in this embodiment of the disclosure, the wireless coil is controlled not to emit a wireless charging signal, or the wireless chip is controlled not to output an AC signal; at this time, if wireless charging is not implemented, a prompt message will be generated on the display interface of the tablet computer: the temperature is higher than 48°C, charging is paused.

[0274] Step 605: Determine the remaining battery level of the tablet computer.

[0275] In step 605a, determine whether the remaining battery power of the tablet is greater than or equal to 20%; if so, proceed to step 607; in step 605b, determine whether the remaining battery power of the tablet is less than 20% and greater than or equal to 5%; if so, proceed to step 606; in step 605c, determine whether the remaining battery power of the tablet is less than 5%; if so, proceed to step 604.

[0276] Step 606: Wirelessly charge the touch keyboard.

[0277] Here, when the tablet is wirelessly charging the keyboard, it will also generate a prompt message on the tablet's display screen indicating that the tablet's battery is low and it can only charge the touch keyboard.

[0278] It should be noted that during the implementation of step 606, the device temperature and remaining battery power of the tablet computer are also monitored. If the device temperature is greater than or equal to 48°C, or the remaining battery power is less than 5%, the process will proceed to step 604.

[0279] Step 607: Obtain the remaining battery power and device temperature of the stylus and keyboard.

[0280] Here, the tablet computer obtains the above parameters through Bluetooth or NFC communication components.

[0281] Step 608: Select the device with the lower remaining battery between the stylus and the touch keyboard as the target accessory device, and wirelessly charge the target accessory device.

[0282] Step 609: Determine whether the current device temperature of the target auxiliary device is greater than or equal to 40°C; if yes, proceed to step 610; if not, continue with the charging process for the target auxiliary device in step 608.

[0283] Step 610: Determine whether the other auxiliary device meets the conditions; if yes, proceed to step 611 and set the other auxiliary device as the next target auxiliary device; if not, proceed to step 604.

[0284] The charging conditions mentioned above are whether the temperature of the other auxiliary device is greater than 40°C or whether the remaining power exceeds 95%.

[0285] Step 611: Wirelessly charge another accessory device.

[0286] It should be noted that during the implementation of step 611, the device temperature and remaining battery power of the tablet computer are also monitored. If the device temperature is greater than or equal to 48°C, or the remaining battery power is less than 5%, the process will proceed to step 604.

[0287] In other embodiments, see Figure 7 , Figure 7 This is a schematic flowchart of a charging method according to an exemplary embodiment. Thus, the charging method proposed in this embodiment can be implemented by the following steps 701 to 719.

[0288] Step 701: Detect whether a stylus and a touch keyboard are present within the detection range of the tablet computer using a detection element.

[0289] Step 702: Obtain the device temperature and remaining battery power of the tablet computer.

[0290] Step 703: Determine if the device temperature of the tablet computer is greater than or equal to 48°C; if not, proceed to step 704; if yes, proceed to step 705.

[0291] Step 704: Stop wireless charging.

[0292] Step 705: Determine the remaining battery level of the tablet computer.

[0293] Step 706: Wirelessly charge the touch keyboard.

[0294] Step 707: Obtain the remaining battery power and device temperature of the stylus and keyboard.

[0295] Here, the implementation process of steps 701 to 707 is the same as that of steps 601 to 607, and will not be repeated here.

[0296] Step 708: Determine the remaining battery level of the stylus and touch keyboard.

[0297] In step 708a, determine whether the remaining battery power of both the stylus and the touch keyboard is greater than or equal to 50%; if so, proceed to step 716; in step 708b, determine whether the remaining battery power of both the stylus and the touch keyboard is less than 50%; if so, proceed to step 710; in step 709c, determine whether the remaining battery power of the tablet computer is less than 50% for one device and greater than or equal to 50% for the other; if so, proceed to step 709.

[0298] Step 709: Wirelessly charge the accessory device with lower remaining battery power.

[0299] Step 710: Wirelessly charge the touch keyboard;

[0300] Step 711: Determine if the remaining battery level of the touch keyboard is greater than or equal to 80%; if yes, proceed to step 712; otherwise, continue to step 710.

[0301] Step 712: Determine if the remaining battery level of the stylus is 100%; if yes, proceed to step 713; otherwise, proceed to step 714.

[0302] Step 713: Wirelessly charge the touch keyboard until the touch keyboard reaches 100% battery, then proceed to step 704.

[0303] Step 714: Wirelessly charge the stylus.

[0304] Step 715: Determine if the remaining battery level of the stylus is 100%; if yes, proceed to step 704; otherwise, continue to step 714.

[0305] Step 716: Wirelessly charge the stylus.

[0306] Step 717: Determine if the remaining battery level of the stylus is 100%; if yes, proceed to step 718; otherwise, proceed to step 716.

[0307] Step 718: Determine if the remaining battery level of the touch keyboard is 100%; if yes, proceed to step 704; otherwise, proceed to step 719.

[0308] Step 719: Wirelessly charge the touch keyboard until the touch keyboard reaches 100% battery, then proceed to step 704.

[0309] This disclosure, through two examples of the charging method described above, enables compatible wireless charging for two auxiliary devices of a tablet computer. This makes the charging device, stylus, and keyboard easier to carry and use together, alleviating the inconvenience of needing to carry separate charging devices for the stylus and keyboard. Furthermore, since this disclosure provides at least one wireless coil, it is possible to charge different auxiliary devices using different wireless charging signals from a single wireless coil, or to charge different auxiliary devices by transmitting wireless charging signals from multiple wireless coils. This enhances the practicality and flexibility of the charging device in wirelessly charging multiple different auxiliary devices, further providing more possibilities for expanding the range of practical auxiliary devices available for the charging device.

[0310] Figure 8 This is a structural block diagram of a charging device according to an exemplary embodiment. Figure 1 .like Figure 8 As shown, the charging device mainly includes:

[0311] The control module 801 is configured to control the wireless coil of the charging device to transmit wireless charging signals to at least two auxiliary devices when at least two auxiliary devices are detected within the detection range of the charging device.

[0312] In some embodiments, the control module 801 is further configured to, when at least two auxiliary devices are detected within the detection range of the charging device, acquire usage information of at least two auxiliary devices; determine a target auxiliary device among the at least two auxiliary devices based on the usage information of the at least two auxiliary devices; and control the wireless coil to transmit a wireless charging signal to the target auxiliary device.

[0313] In some embodiments, the control module 801 is further configured to, when there are at least two wireless coils, determine a target wireless coil corresponding to the target accessory device among the at least two wireless coils; control the target wireless coil to transmit a wireless charging signal to the target accessory device; and when there is only one wireless coil, determine a target electrical parameter corresponding to the target accessory device, and control the wireless coil to transmit a wireless charging signal matching the target electrical parameter.

[0314] In some embodiments, the control module 801 is further configured to determine a target auxiliary device among at least two auxiliary devices based on the status information of the charging device and the usage information of at least two auxiliary devices; wherein the status information of the charging device includes the remaining power of the charging device and / or the device temperature.

[0315] In some embodiments, the control module 801 is further configured to: acquire the remaining power of the charging device when the device temperature of the charging device is less than a first temperature threshold; determine a target auxiliary device based on the status information and / or device type of at least two auxiliary devices when the remaining power of the charging device is greater than or equal to the first power threshold; determine a target auxiliary device based on the device type of at least two auxiliary devices when the remaining power of the charging device is less than the first power threshold and greater than or equal to a second power threshold; wherein the second power threshold is less than the first power threshold; and control the wireless coil not to transmit a wireless charging signal when the device temperature of the charging device is greater than or equal to the first temperature threshold or the remaining power of the charging device is less than the second power threshold.

[0316] In some embodiments, the control module 801 is further configured to, when there are different remaining powers among at least two remaining powers of at least two auxiliary devices, select the auxiliary device with the smallest remaining power as the target auxiliary device; and when at least two remaining powers of at least two auxiliary devices are the same, determine the target auxiliary device according to the device type of at least two auxiliary devices.

[0317] In some embodiments, the control module 801 is further configured to determine at least one first candidate auxiliary device among at least two auxiliary devices if the device temperature of the current target auxiliary device is greater than or equal to a second temperature threshold, or the remaining power of the current target auxiliary device is greater than or equal to a third power threshold; wherein the first candidate auxiliary device is different from the current target auxiliary device, and the third power threshold is greater than the first power threshold; and to determine the next target auxiliary device based on the device temperature and / or remaining power of the at least one first candidate auxiliary device, or to control the wireless coil to stop transmitting wireless charging signals.

[0318] In some embodiments, the control module 801 is further configured to: determine a target auxiliary device based on an auxiliary device of a first type when at least two of the remaining power of at least two auxiliary devices are greater than or equal to a fourth power threshold; determine a target auxiliary device based on an auxiliary device of a second type when at least two of the remaining power of at least two auxiliary devices are less than the fourth power threshold; wherein the first type and the second type are different; and determine a target auxiliary device based on at least one auxiliary device with a remaining power less than the fourth power threshold when at least one of the remaining power of at least two auxiliary devices is greater than or equal to the fourth power threshold and at least one of the remaining power is less than the fourth power threshold.

[0319] In some embodiments, the control module 801 is further configured to: if the current target accessory device is of the first type, and the remaining power of the current target accessory device is greater than or equal to a fifth power threshold, then determine at least one second candidate accessory device among at least two accessory devices; if the current target accessory device is of the second type, and the remaining power of the current target accessory device is greater than or equal to a sixth power threshold, then determine at least one second candidate accessory device among at least two accessory devices; wherein the second candidate accessory device is different from the current target accessory device, the fifth power threshold and the sixth power threshold are different, and both are greater than a fourth power threshold; and determine a next target accessory device among at least one second candidate accessory device based on the device temperature and / or remaining power of the at least one second candidate accessory device, or control the wireless coil to stop transmitting wireless charging signals.

[0320] It should be noted that the specific way the control module performs operations in the above embodiments has been described in detail in the embodiments of the charging method above, and will not be elaborated here.

[0321] Figure 9This is a structural block diagram of a charging device according to an exemplary embodiment. Here, the charging device 900 can be a mobile phone, computer, digital broadcasting terminal, messaging device, game console, tablet computer, medical device, fitness equipment, personal digital assistant, etc.

[0322] Reference Figure 9 The charging device 900 may include one or more of the following components: processing component 902, memory 904, power supply component 906, multimedia component 908, audio component 910, input / output interface 912, sensor component 914, and communication component 916.

[0323] Processing component 902 typically controls the overall operation of charging device 900, such as operations associated with at least one of display, telephone call, data communication, camera operation, and recording operation. Processing component 902 may include one or more processors 920 to execute instructions to perform all or part of the steps of the methods described above. Furthermore, processing component 902 may include one or more modules to facilitate interaction between processing component 902 and other components. For example, processing component 902 may include a multimedia module to facilitate interaction between multimedia component 908 and processing component 902.

[0324] Memory 904 is configured to store various types of data to support operation on charging device 900. Examples of such data include at least one of the following: instructions for any application or method operating on charging device 900, contact data, phonebook data, messages, pictures, and videos. Memory 904 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read Only Memory (PROM), Read-Only Memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk.

[0325] The power supply component 906 provides power to the various components of the charging device 900. The power supply component 906 may include at least one of the following: a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to the charging device 900.

[0326] Multimedia component 908 includes a screen that provides an output interface between charging device 900 and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a Touch Panel, the screen may be implemented as a touchscreen to receive input signals from the user. The Touch Panel includes one or more touch sensors to sense touches, swipes, and gestures on the Touch Panel. The touch sensors may sense not only the boundaries of touch or swipe actions but also the duration and pressure associated with the touch or swipe operation. In some embodiments, multimedia component 908 includes a front-facing camera and / or a rear-facing camera. When the charging device 900 is in an operating mode, such as a shooting mode or a video mode, the front-facing camera and / or the rear-facing camera may receive external multimedia data. Each front-facing camera and rear-facing camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

[0327] Audio component 910 is configured to output and / or input audio signals. For example, audio component 910 includes a microphone (MIC) configured to receive external audio signals when charging device 900 is in an operating mode, such as call mode, recording mode, and voice recognition mode. The received audio signals may be further stored in memory 904 or transmitted via communication component 916. In some embodiments, audio component 910 also includes a speaker for outputting audio signals.

[0328] Input / output interface 912 provides an interface between processing component 902 and peripheral interface modules, such as keyboards, click wheels, and buttons. These buttons may include, but are not limited to, home buttons, volume buttons, start buttons, and lock buttons.

[0329] Sensor assembly 914 includes one or more sensors for providing state assessments of various aspects of the charging device 900. For example, sensor assembly 914 may detect the on / off state of the charging device 900, the relative positioning of components (e.g., the display and keypad of the charging device 900), changes in position of the charging device 900 or one of its components, the presence or absence of user contact with the charging device 900, the orientation or acceleration / deceleration of the charging device 900, and temperature changes of the charging device 900. Sensor assembly 914 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 914 may also include an optical sensor, such as a complementary metal-oxide-semiconductor (CMOS) or charge-coupled device (CCD) image sensor, for use in imaging applications. In some embodiments, sensor assembly 914 may also include, but is not limited to, at least one of the following: an accelerometer, a gyroscope, a magnetometer, a pressure sensor, and a temperature sensor.

[0330] Communication component 916 is configured to facilitate wired or wireless communication between charging device 900 and other devices. Charging device 900 can access wireless networks based on communication standards, such as Wi-Fi, 4G, 5G, or combinations thereof. In one exemplary embodiment, communication component 916 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, communication component 916 also includes a Near Field Communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wide Band (UWB), Bluetooth (BT), and other technologies.

[0331] In an exemplary embodiment, the charging device 900 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components.

[0332] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 904 including executable instructions or a computer program, which can be executed by the processor 920 of the charging device 900 to perform the above-described method. For example, the non-transitory computer-readable storage medium may be a ROM, random access memory (RAM), a compact disc read-only memory (CD-ROM), magnetic tape, floppy disk, and optical data storage device, etc.

[0333] A non-transitory computer-readable storage medium, when the instructions in the storage medium are executed by the processor of a charging device, enables the charging device to perform any of the charging methods described in the embodiments of this disclosure.

[0334] This disclosure provides a computer program product comprising a computer program or executable instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer program or executable instructions from the computer-readable storage medium and executes the computer program or executable instructions, causing the computer device to perform any of the charging methods described in the embodiments of this disclosure; wherein the computer device may be the charging device proposed in the above embodiments. Other embodiments of this disclosure will be readily apparent to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the claims.

[0335] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A charging device, characterized in that, include: At least one wireless coil; At least one detection element, spaced apart from at least one of the wireless coils, is used to detect auxiliary devices located within the detection range of the charging device; A control circuit, electrically connected to the detection element and the wireless coil respectively, is used to control the wireless coil to transmit a wireless charging signal to at least two of the auxiliary devices when at least two auxiliary devices are detected within the detection range of the charging device by at least one of the detection elements.

2. The charging device according to claim 1, characterized in that, The wireless coil includes one, and the charging device further includes: The first electrical output circuit is electrically connected to the wireless coil and is used to output an AC signal; The control circuit is electrically connected to the first electrical output circuit and is used to control the electrical parameters of the AC signal output by the first electrical output circuit according to the usage information of at least two of the auxiliary devices. The electrical parameters of the AC signal are different, and the wireless charging signal output by the wireless coil is different; and the different wireless charging signals are used to charge different auxiliary devices.

3. The charging device according to claim 1, characterized in that, The wireless coil includes at least two, and each wireless coil is respectively disposed on a different side of the charging device; The charging device further includes: a second electrical output circuit and a switching assembly; The second electrical output circuit is electrically connected to the control circuit and is used to drive the wireless coil to transmit the wireless charging signal under the action of the control circuit. A switching assembly is connected to the connection lines between the second electrical output circuit and at least two of the wireless coils; When the switching assembly is in different switching states, the connection lines between the second electrical output circuit and the different wireless coils are in a conductive state.

4. The method according to claim 1, characterized in that, The wireless coil includes at least two, and each wireless coil is respectively disposed on a different side of the charging device; The charging device further includes at least two third electrical output circuits; at least two of the third electrical output circuits are electrically connected to the control circuit. Each of the third electrical output circuits is electrically connected to a different wireless coil and is used to drive the different wireless coils to transmit the wireless charging signal under the action of the control circuit.

5. The charging device according to claim 3 or 4, characterized in that, The detection element comprises at least two; Each of the detection elements is distributed on the same side of the charging device along with different wireless coils.

6. The charging device according to any one of claims 1 to 4, characterized in that, The charging device also includes: At least two sets of magnetic components are disposed on different sides of the charging device; The magnetic components in each group are used to achieve magnetic adsorption with different auxiliary devices.

7. The charging device according to any one of claims 1 to 4, characterized in that, The charging device also includes: A communication component for acquiring usage information of the auxiliary device; The control circuit, electrically connected to the communication component, is used to control the wireless coil to transmit the wireless charging signal to a target auxiliary device among the at least two auxiliary devices based on the usage information of the at least two auxiliary devices.

8. The charging device according to any one of claims 1 to 4, characterized in that, The detection element includes a Hall effect detection element or a near-field communication detection element.

9. A charging method, applied in the charging device according to any one of claims 1 to 8, characterized in that, The method includes: If at least two auxiliary devices are detected within the detection range of the charging device, the wireless coil of the charging device is controlled to transmit wireless charging signals to at least two of the auxiliary devices.

10. The method according to claim 9, characterized in that, When at least two auxiliary devices are detected within the detection range of the charging device, controlling the wireless coil of the charging device to transmit wireless charging signals to the at least two auxiliary devices includes: If at least two of the auxiliary devices are detected within the detection range of the charging device, the usage information of at least two of the auxiliary devices is obtained; Based on the usage information of at least two of the auxiliary devices, determine the target auxiliary device from among the at least two auxiliary devices; Control the wireless coil to transmit the wireless charging signal to the target accessory device.

11. The method according to claim 10, characterized in that, The control of the wireless coil to transmit the wireless charging signal to the target accessory device includes: In the case where there are at least two wireless coils, the target wireless coil corresponding to the target accessory device is determined among the at least two wireless coils. Control the target wireless coil to transmit the wireless charging signal to the target accessory device; In the case where the wireless coil includes one device, the target electrical parameters corresponding to the target accessory device are determined, and the wireless coil is controlled to transmit the wireless charging signal that matches the target electrical parameters.

12. The method according to claim 10, characterized in that, The step of determining the target auxiliary device from at least two auxiliary devices based on usage information from at least two auxiliary devices includes: Based on the status information of the charging device and the usage information of at least two auxiliary devices, a target auxiliary device is determined from at least two auxiliary devices; The status information of the charging device includes the remaining power of the charging device and / or the device temperature.

13. The method according to claim 12, characterized in that, The step of determining the target auxiliary device from at least two auxiliary devices based on the status information of the charging device and the usage information of at least two auxiliary devices includes: When the device temperature of the charging device is lower than a first temperature threshold, the remaining power of the charging device is obtained; If the remaining power of the charging device is greater than or equal to a first power threshold, the target auxiliary device is determined based on the status information and / or device type of at least two auxiliary devices; If the remaining power of the charging device is less than the first power threshold and greater than or equal to the second power threshold, the target auxiliary device is determined based on the device types of at least two of the auxiliary devices; wherein the second power threshold is less than the first power threshold. The method further includes: If the device temperature of the charging device is greater than or equal to the first temperature threshold, or if the remaining power of the charging device is less than the second power threshold, the wireless coil is controlled not to emit the wireless charging signal.

14. The method according to claim 13, characterized in that, Determining the target auxiliary device based on the status information and / or device type of at least two of the auxiliary devices includes: If there are different remaining powers among at least two remaining powers of at least two of the auxiliary devices, the auxiliary device with the smallest remaining power shall be designated as the target auxiliary device. If at least two of the auxiliary devices have the same remaining power, the target auxiliary device is determined based on the device type of the at least two auxiliary devices.

15. The method according to claim 14, characterized in that, The method further includes: If the current target auxiliary device has a device temperature greater than or equal to a second temperature threshold, or the current target auxiliary device has a remaining power greater than or equal to a third power threshold, at least one first candidate auxiliary device is determined from at least two auxiliary devices; wherein the first candidate auxiliary device is different from the current target auxiliary device, and the third power threshold is greater than the first power threshold; Based on the device temperature and / or remaining power of at least one of the first candidate auxiliary devices, determine the next target auxiliary device, or control the wireless coil to stop transmitting the wireless charging signal.

16. The method according to claim 13, characterized in that, Determining the target auxiliary device based on the status information and / or device type of at least two of the auxiliary devices includes: If at least two of the remaining batteries of at least two of the auxiliary devices are greater than or equal to a fourth battery threshold, the target auxiliary device is determined based on the auxiliary device of the first type. If at least two of the remaining batteries of at least two of the auxiliary devices are less than the fourth battery threshold, the target auxiliary device is determined based on the auxiliary device of the second type; wherein the first type and the second type are different; If at least one of the remaining powers of at least two of the auxiliary devices is greater than or equal to the fourth power threshold, and at least one of the remaining powers is less than the fourth power threshold, the target auxiliary device is determined based on the at least one auxiliary device whose remaining power is less than the fourth power threshold.

17. The method according to claim 16, characterized in that, The method further includes: If the current target accessory is of the first type, and the remaining power of the current target accessory is greater than or equal to the fifth power threshold, then at least one second candidate accessory is determined among at least two accessory devices. If the current target accessory is of the second type, and the remaining power of the current target accessory is greater than or equal to the sixth power threshold, then at least one second candidate accessory is determined among at least two accessories; wherein the second candidate accessory is different from the current target accessory, the fifth power threshold and the sixth power threshold are different, and both are greater than the fourth power threshold; Based on the device temperature and / or remaining power of at least one of the second candidate auxiliary devices, determine the next target auxiliary device from among at least one of the second candidate auxiliary devices, or control the wireless coil to stop transmitting the wireless charging signal.

18. A charging device, characterized in that, include: The control module is configured to control the wireless coil of the charging device to transmit a wireless charging signal to at least two of the auxiliary devices when at least two auxiliary devices are detected within the detection range of the charging device.

19. A non-transitory computer-readable storage medium storing a computer program or instructions, characterized in that, When the computer program or instructions in the storage medium are executed by a processor, the steps of the method according to any one of claims 9 to 17 are implemented.

20. A computer program product, comprising a computer program or instructions, characterized in that, When the computer program or instructions are executed by a processor, they implement the steps of the method according to any one of claims 9 to 17.

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