Wireless charging module, wireless charging processing method and device and electronic equipment

Abstract

The invention relates to a wireless charging module, a wireless charging processing method and device and electronic equipment, and the wireless charging module comprises a first coil which is used for being coupled with a second coil of power supply equipment; the charging unit is electrically connected with the first coil, and is used for outputting a first signal according to the electric signal on the first coil when the charging unit is started, and charging power receiving equipment based on the electric signal on the first coil; and the detection unit is electrically connected with the first coil and is used for outputting a second signal based on the electric signal on the first coil when the charging unit is turned off. The control module can directly control the display of the charging prompt according to the first signal or the second signal output by the wireless charging module, the misunderstanding of a user caused by the fact that the charging unit is closed to display the non-charging state when the wireless charging module is located on the charging base is reduced, the wireless charging device has the advantage of being easy to implement, and the wireless charging experience of the user is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of wireless charging, and in particular to a wireless charging module, a wireless charging processing method, a device and an electronic device. Background Art

[0002] When the powered device is wirelessly charging, the powered device may be on the charging stand but the powered device may not display a charging prompt, causing the user to believe that the wireless charging module is faulty, affecting the user experience. Summary of the invention

[0003] The present disclosure provides a wireless charging module, a wireless charging processing method, a device and an electronic device.

[0004] According to a first aspect of an embodiment of the present disclosure, a wireless charging module is provided, including:

[0005] First coil;

[0006] A charging unit, electrically connected to the first coil, configured to output a first signal according to the electrical signal on the first coil when the charging unit is turned on, and to charge the powered device based on the electrical signal on the first coil; wherein, when the first signal has a first signal value, the first signal indicates that the wireless charging module is in a charging state; and when the first signal has a second signal value, the first signal indicates that the wireless charging module is not in a charging state;

[0007] a detection unit, electrically connected to the first coil, and configured to output a second signal based on the electrical signal on the first coil when the charging unit is turned off; when the first coil is coupled with the second coil of the power supply device, the second signal has the first signal value; when the first coil is not coupled with the second coil, the second signal has the second signal value;

[0008] In one embodiment, the wireless charging module includes:

[0009] an output pin, electrically connected to the charging unit and the detection unit, respectively, for outputting the first signal when the charging unit is turned on, and outputting the second signal when the charging unit is turned off; and / or,

[0010] The input pins are electrically connected to the charging unit and the detection unit, respectively, and are used to receive a third signal output by the control module, wherein the third signal is used to control the charging unit to be turned on or off.

[0011] In one embodiment, the third signal is also used to deactivate the detection unit when the charging unit is turned on, and to enable the detection unit when the charging unit is turned off; the enabled detection unit is used to output the second signal based on the electrical signal on the first coil.

[0012] In one embodiment, the wireless charging module further includes:

[0013] The first power supply is electrically connected to the detection unit and is a working power supply of the detection unit.

[0014] In one embodiment, the output pin and / or the input pin are both connected to a basic input and output GPIO pin of the control module.

[0015] In one embodiment, the detection unit includes: a pulse detection circuit electrically connected to the first coil.

[0016] A second aspect of the embodiments of the present disclosure provides a wireless charging processing method, which is executed by a control module. The method includes:

[0017] Receive the first signal or the second signal output by the wireless charging module; when the first signal has a first signal value, the first signal indicates that the wireless charging module is in a charging state; when the first signal has a second signal value, the first signal indicates that the wireless charging is not in a charging state; when the first coil is coupled with the second coil of the power supply device, the second signal has the first signal value; when the first coil is not coupled with the second coil, the second signal has the second signal value;

[0018] A charging reminder is displayed according to the first signal or the second signal.

[0019] In one embodiment, displaying a charging reminder according to the first signal or the second signal includes:

[0020] When the first signal indicates that the charging unit is in a charging state or the second signal has a first signal value, a charging prompt is displayed.

[0021] In one embodiment, the method also includes: sending a third signal to the wireless charging module; wherein the third signal is used to turn on or off the charging unit of the wireless charging module; when the charging unit is turned on, the detection unit of the wireless charging module is disabled, or, when the charging unit is turned off, the detection unit of the wireless charging module is enabled; the charging unit is used to output the first signal; and the detection unit is used to output the second signal.

[0022] In one embodiment, sending a third signal to the wireless charging module includes:

[0023] A third signal is sent to the wireless charging module according to the temperature of the powered device.

[0024] In one embodiment, sending a third signal to the wireless charging module according to the temperature of the powered device includes:

[0025] When the temperature of the powered device is greater than a first threshold, a third signal instructing the charging unit to be turned off is sent to the wireless charging module, or,

[0026] When the temperature of the powered device is less than or equal to the first threshold, a third signal instructing the charging unit to be turned on is sent to the wireless charging module.

[0027] According to a third aspect of the embodiments of the present disclosure, a wireless charging processing device is provided, including:

[0028] A receiving module, configured to receive a first signal or a second signal output by the wireless charging module; wherein, when the first signal has a first signal value, the first signal indicates that the wireless charging module is in a charging state; and when the first signal has a second signal value, the first signal indicates that the wireless charging is not in a charging state; wherein, when the first coil is coupled with the second coil of the power supply device, the second signal has the first signal value; and when the first coil is not coupled with the second coil, the second signal has the second signal value;

[0029] The display module is used to display a charging prompt according to the first signal or the second signal.

[0030] A fourth aspect of the embodiments of the present disclosure provides an electronic device, comprising the wireless charging module described in any one of the above items.

[0031] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0032] The wireless charging module disclosed in the present invention includes: a first coil; a charging unit electrically connected to the first coil, used to output a first signal according to the electrical signal on the first coil when the charging unit is turned on, and to charge the powered device based on the electrical signal on the first coil; a detection unit electrically connected to the first coil, used to output a second signal based on the electrical signal on the first coil when the charging unit is turned off. The detection unit can output a second signal that replaces the first signal when the charging unit is turned off, so that the wireless charging module coupled with the second coil of the power supply device outputs a signal indicating that charging is in progress, so that the control module can directly control the display of the charging prompt according to the first signal or the second signal output by the wireless charging module, thereby reducing the user misunderstanding caused by the display of the uncharged state when the wireless charging module is on the charging seat because the charging unit is turned off, and it is realized by the charging unit of the wireless charging module instead of the control of software logic, which has the characteristics of simple implementation and improves the user's wireless charging experience.

[0033] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0035] Figure 1 is a schematic structural diagram of a powered device according to an exemplary embodiment;

[0036] Figure 2 is a schematic diagram showing a circuit principle of a charging unit according to an exemplary embodiment;

[0037] Figure 3 is a schematic diagram of a wireless charging module hardware according to an exemplary embodiment;

[0038] Figure 4 is a schematic diagram of a pulse detection waveform according to an exemplary embodiment;

[0039] Figure 5 is a schematic diagram of a wireless charging module according to an exemplary embodiment;

[0040] Figure 6 is a schematic diagram of a wireless charging module according to an exemplary embodiment;

[0041] Figure 7 is a schematic diagram of a powered device according to an exemplary embodiment;

[0042] Figure 8is a schematic diagram showing a circuit principle of a pulse detection unit according to an exemplary embodiment;

[0043] Fig. 9 is a schematic diagram of a pulse detection waveform according to an exemplary embodiment;

[0044] Fig.10 is a schematic diagram showing a wireless charging processing method according to an exemplary embodiment;

[0045] Fig.11 is a schematic diagram of a wireless charging processing device according to an exemplary embodiment;

[0046] Fig.12 is a schematic diagram of a wireless charging processing device according to an exemplary embodiment;

[0047] Fig.13 The figure is a schematic diagram of a wireless charging processing device according to an exemplary embodiment. DETAILED DESCRIPTION

[0048] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0049] refer to Figure 1 During the charging process, the powered device, such as a smart watch, can easily trigger the temperature control operation due to passive heat dissipation and limited heat dissipation environment, causing the powered device to stop charging.

[0050] In some embodiments, the wireless charging scheme of the powered device may include:

[0051] Option 1: Reference Figure 2 , directly detect whether it is wirelessly charging by outputting the level of a general purpose input output pin (GPIO) of the receive (RX) chip, and then determine whether it is charging.

[0052] In some embodiments, the wireless charging hardware of the powered device may also include: directly detecting whether wireless charging is in progress by measuring the level of an output of a basic input / output pin of the RX chip, and then determining whether charging is in progress, and periodically reading the voltage value of the dynamically adjusted output voltage pin in software, and determining whether charging is in progress by combining the two conditions.

[0053] Reference Hardware Reference Figure 3 , a GPIO pin of the microcontroller unit (MCU) reads the high and low levels of the detection (Detect, DET) pin, and collects the VRECT pin voltage through the ADC pin; because the VRECT pin voltage is relatively high, the VRECT circuit performs voltage division; when the rear shell temperature control occurs, the MCU controls the RX chip to enter the shutdown state (or sleep state) through a GPIO pin.

[0054] If temperature control does not occur,

[0055] If the smartwatch is on the charging dock, the RX chip is in the power supply state. At this time, by judging that DET outputs a high level and VRECT is a higher voltage A, it can be confirmed that the wireless charging module is in the charging state;

[0056] If the smart watch is not on the charging dock, the charging receiving chip is in an unpowered state. At this time, by judging that both the DET pin and the VRECT level pin are not at a high level, it can be confirmed that the wireless charging module is in a non-charging state.

[0057] If temperature control occurs, the sleep pin controls the RX chip to shut down;

[0058] If the smart watch is on the charging dock, the DET pin is detected to output a high impedance state, and the VRECT level pin is a periodic high voltage A. The output waveform is as follows: Figure 4 The waveform below is the sampling that the MCU needs to poll. If it keeps sampling until there is voltage, it is considered to be on the charging base; and it shows that the wireless charging module is in charging state.

[0059] If the smartwatch is not on the charging station, the DET pin is detected to output a high impedance state, and the VRECT pin is periodically free of high voltage A. The output waveform is as follows: Figure 4 As shown in the waveform below, the MCU needs to poll for sampling. If the VRECT voltage is not read within the sampling cycle, it is considered that it is not on the charging dock at this time and it is displayed as being in a non-charging state.

[0060] In view of this, the present disclosure provides a wireless charging module 100, such as Figure 5 As shown, including:

[0061] A first coil 101;

[0062] A charging unit 102, electrically connected to the first coil, configured to output a first signal according to the electrical signal on the first coil when the charging unit is turned on, and to charge the powered device based on the electrical signal on the first coil; wherein, when the first signal has a first signal value, the first signal indicates that the wireless charging module is in a charging state; and when the first signal has a second signal value, the first signal indicates that the wireless charging module is not in a charging state;

[0063] The detection unit 103 is electrically connected to the first coil, and is used to output a second signal based on the electrical signal on the first coil when the charging unit is turned off; wherein, when the first coil is coupled with the second coil of the power supply device, the second signal has the first signal value; when the first coil is not coupled with the second coil, the second signal has the second signal value.

[0064] In the embodiment of the present disclosure, the first coil is included in the wireless charging module, the second coil is located on the power supply device, and the first coil is coupled with the second coil for signal transmission. For example, the power supply device can be a wireless charging stand or a charging plug.

[0065] In the embodiment of the present disclosure, the charging unit may include a transmitting end and a receiving end. The transmitting end of the charging unit may be connected to a battery of an electronic device to charge the powered device. The receiving end of the charging unit may include a first coil to couple with a second coil to achieve power transmission.

[0066] In the embodiment of the present disclosure, the charging unit and the detection unit may share input pins and output pins. In this case, an isolation path needs to be provided between the charging unit and the detection unit to avoid mutual interference.

[0067] In other embodiments, the charging unit and the detection unit are two independent units, the charging unit has an independent input pin and an output pin, and the detection unit has an independent input pin and an output pin, and no isolation circuit is required. In this case, the charging unit and the detection unit can be electrically connected to the control module through their own independent pins, accept the control of the control module, and output the first signal or the second signal to the control module.

[0068] Exemplarily, the input pin or output pin of the charging unit and / or the detection unit may be a basic input and output GPIO pin.

[0069] In the embodiment of the present disclosure, when the charging unit is turned on, the detection unit is in the off state, and the electrical signal on the first coil outputs a first signal. The first signal has a first signal value and a second signal value. When the first signal has the first signal value, the first signal indicates that the wireless charging module is in a charging state, and the powered device is charged based on the electrical signal on the first coil. When the first signal has the second signal value, the first signal indicates that the wireless charging module is in an uncharged state.

[0070] In some embodiments, the first signal value and the second signal value may correspond to different level values ​​or current values, or correspond to different frequency values ​​of the pulse signal.

[0071] In the embodiment of the present disclosure, the charging unit and the detection unit do not work at the same time, that is, when the charging unit is turned off, the detection unit is turned on, and the second signal is output based on the electrical signal on the first coil. The second signal has a first signal value and a second signal value. Exemplarily, the power supply device is a charging stand, and the wireless charging module is located on the charging stand, then the distance between the first coil and the second coil is close, and the first coil and the second coil will be coupled to each other at this time, otherwise the first coil and the second coil are not coupled. When the first coil is coupled with the second coil, the second signal has a first signal value, indicating that the wireless charging module is in a charging state; when the first coil is not coupled with the second coil, the second signal has a second signal value, indicating that the wireless charging module is not in a charging state.

[0072] In some embodiments, shutting down the charging unit may include the charging unit entering a non-working state such as a sleep state.

[0073] In the disclosed embodiment, the detection unit can output a second signal to replace the first signal when the charging unit is turned off, so that the wireless charging module coupled to the second coil of the power supply device outputs a signal indicating that charging is in progress. In this way, the control module can directly control the display of the charging prompt according to the first signal or the second signal output by the wireless charging module, thereby reducing user misunderstanding caused by the display of an uncharged state when the wireless charging module is on the charging base due to the charging unit being turned off. This is achieved through the charging unit of the wireless charging module rather than software logic control, and is simple to implement, thereby improving the user's wireless charging experience.

[0074] In some embodiments, the wireless charging module includes:

[0075] The output pins are electrically connected to the charging unit and the detection unit, respectively, and are used to output the first signal when the charging unit is turned on, and to output the second signal when the charging unit is turned off.

[0076] In the disclosed embodiment, the output pin may be a voltage pin.

[0077] In one embodiment, the output pins of the first signal and the second signal are the same.

[0078] In another embodiment, the output pins of the first signal and the second signal are different, and the wireless charging module uses different output pins to output the first signal and the second signal respectively.

[0079] If the output pins of the first signal and the second signal are the same, it means that the detection unit and the charging unit share an output pin of the charging chip, that is, the detection unit is a component of the charging chip. The function of the charging chip is enhanced due to the introduction of the detection unit, and no additional pins are added, thereby maintaining the lightness and thinness of the charging chip, and there is no need to increase the pins of the control module connected to the charging chip.

[0080] In some embodiments, the detection unit and the charging unit share the same output pin, and an isolation device may be provided between the detection unit and the charging unit. The isolation device may include but is not limited to an isolation switch.

[0081] In another embodiment, the wireless charging module further includes:

[0082] The input pins are electrically connected to the charging unit and the detection unit, respectively, and are used to receive a third signal output by the control module, wherein the third signal is used to control the charging unit to be turned on or off.

[0083] The third signal may be a sleep signal or a shutdown signal. At this time, the third signal is used to control the charging unit to enter the shutdown state or the sleep state. At this time, the charging unit remains in the open state if it does not receive the third signal, and enters the closed state when it receives the third signal.

[0084] In the embodiment of the present disclosure, the input pin may include a sleep pin. The sleep pin is used to control the module to send a sleep signal.

[0085] In some embodiments, the third signal may also be an on signal. In this case, the charging unit remains in an on state upon receiving the third signal, and enters an off state upon not receiving the third signal.

[0086] In some other embodiments, different signal values ​​of the third signal are used to control the charging unit to be turned on or off.

[0087] In some embodiments, the third signal is also used to deactivate the detection unit when the charging unit is turned on, and to enable the detection unit when the charging unit is turned off; the enabled detection unit is used to output the second signal based on the electrical signal on the first coil.

[0088] In this embodiment, it is equivalent to a third signal of the control module, which controls the state switching of the charging unit and the detection unit at the same time, realizes multiple functions of a third signal, and thus simplifies the control of the control module without generating different state control signals for the charging unit and the detection unit respectively.

[0089] In some embodiments, the wireless charging module further includes:

[0090] The first power supply is electrically connected to the detection unit and is a working power supply of the detection unit.

[0091] In the disclosed embodiment, the first power source may include: a system power supply. In some embodiments, the first power source is electrically connected to the detection unit, and the first power source can directly power the detection unit. In this way, even if the first coil and the second coil are not coupled for power supply, the detection unit can still work and detect the charging status of the wireless charging module.

[0092] In some embodiments, the output pin and / or the input pin are both connected to a basic input and output GPIO pin of the control module.

[0093] In the disclosed embodiment, the output pin can output a voltage signal to the basic input and output GPIO pin of the control module, the input pin can receive a sleep signal sent by the basic input and output GPIO pin of the control module, and the output pin and / or the input pin are connected to the basic input and output GPIO pin of the control module to realize signal transmission between the wireless charging module and the control module.

[0094] In some embodiments, the detection unit includes: a pulse detection circuit electrically connected to the first coil.

[0095] In the embodiment of the present disclosure, the detection unit may include a pulse detection circuit electrically connected to the first coil.

[0096] The pulse detection circuit is used to detect the pulse signal on the first coil. When the pulse signal is detected, it can be considered that the first coil is coupled with the second coil. When the pulse signal on the first coil is not detected, it can be considered that the first coil is not coupled with the second coil. The pulse detection circuit has the characteristics of simple structure and sensitive detection.

[0097] For example, Figure 6 A specific example of a wireless charging module is shown, and the powered device is as follows Figure 7 Smartwatch shown.

[0098] like Figure 8 As shown, the charging base includes: a transmission (transport, TX) chip. The TX chip includes a second coil.

[0099] The electronic device may include the aforementioned wireless charging module, that is, the wireless charging module is a component of the electronic device.

[0100] The electronic device may include but is not limited to a mobile terminal.

[0101] The mobile terminal may include but is not limited to a wearable device.

[0102] The wearable device may include but is not limited to a smart watch, a smart bracelet or a headset.

[0103] The wireless charging module may include a first coil and a receiving (RX) chip, wherein a low-power pulse detection unit is built in the RX chip. The electronic device also includes a microcontroller unit MCU.

[0104] like Figure 6 As shown, the sleep pin and detection (Detect, DET) pin of the customized RX chip are directly connected to the basic input and output GPIO pins of the microcontroller unit MCU. The system power supply supplies power to the RX chip to ensure that the RX chip can activate the PING_DET pin detection unit without the TX chip power supply. The system power supply VSYS can be directly supplied by the battery VBAT, or supplied by the subsequent system power supply VSYS. The detection unit outputs a high level when it detects a pulse.

[0105] like Fig. 9 As shown, when the smart watch is placed on a charging dock with a built-in TX chip, the detection unit will have periodic pulses, and the detection pin DET of the TX chip outputs a high level.

[0106] In the disclosed embodiment, the detection unit can output a second signal to replace the first signal when the charging unit is turned off, so that the wireless charging module coupled to the second coil of the power supply device outputs a signal indicating that charging is in progress. In this way, the control module can directly control the display of the charging prompt according to the first signal or the second signal output by the wireless charging module, thereby reducing user misunderstanding caused by the display of an uncharged state when the wireless charging module is on the charging base due to the charging unit being turned off. This is achieved through the charging unit of the wireless charging module rather than software logic control, and is simple to implement, thereby improving the user's wireless charging experience.

[0107] The present disclosure also provides a wireless charging processing method, which is executed by a control module, such as Fig.10 As shown, including:

[0108] 111: Receive the first signal or the second signal output by the wireless charging module; wherein, when the first signal has a first signal value, the first signal indicates that the wireless charging module is in a charging state; and when the first signal has a second signal value, the first signal indicates that the wireless charging module is not in a charging state;

[0109] Wherein, when the first coil is coupled with the second coil of the power supply device, the second signal has the first signal value; when the first coil is not coupled with the second coil, the second signal has the second signal value;

[0110] 112: Display a charging reminder according to the first signal or the second signal.

[0111] In the disclosed embodiment, the wireless charging module outputs a first signal or a second signal.

[0112] The first signal is used to indicate whether the wireless charging module is in a charging state. For example, when the first signal has a first signal value, it indicates that the wireless charging module is in a charging state and a charging prompt is displayed. When the first signal has a second signal value, it indicates that the wireless charging module is not in a charging state and no charging prompt is displayed.

[0113] In the disclosed embodiment, the second signal can replace the first signal to output a signal indicating that charging is in progress. In this way, the display of the charging prompt can be directly controlled according to the output first signal or the second signal, thereby reducing user misunderstanding caused by the charging unit being turned off and displaying an uncharged state when the wireless charging module is on the charging base. This has the characteristics of simple implementation and improves the user's wireless charging experience.

[0114] In some embodiments, displaying a charging reminder according to the first signal or the second signal includes:

[0115] When the first signal indicates that the charging unit is in a charging state or the second signal has a first signal value, a charging prompt is displayed.

[0116] Exemplarily, when the wireless charging module is in the working state, a first signal is output, and when the first signal has a first signal value, it indicates that the wireless charging module is in the charging state, and a charging prompt is displayed. Alternatively, when the wireless charging module is in the off state, a second signal is output, and when the second signal has a first signal value, it indicates that the first coil is coupled with the second coil, and it can be determined that the wireless charging module is in the charging state, and a charging prompt is displayed.

[0117] In some embodiments, the charging prompt includes: a prompt icon indicating that charging is in progress. When the wireless charging module is in a charging state, a charging prompt is displayed, that is, a prompt icon indicating that charging is in progress is displayed.

[0118] In some other embodiments, the charging prompt further includes: a prompt text indicating that charging is in progress. Exemplarily, the prompt text indicating that charging is in progress is: charging, current power level 56%.

[0119] In some embodiments, the method further comprises:

[0120] A third signal is sent to the wireless charging module; wherein the third signal is used to turn on or off the charging unit of the wireless charging module; when the charging unit is turned on, the detection unit of the wireless charging module is disabled, or, when the charging unit is turned off, the detection unit of the wireless charging module is enabled; the charging unit is used to output the first signal; and the detection unit is used to output the second signal.

[0121] In the embodiment of the present disclosure, the control module sends a third signal to the wireless charging module to instruct the charging unit to turn on or off. When the charging unit is turned on, the detection unit is disabled, and the charging unit outputs the first signal.

[0122] When the wireless charging module needs to shut down the charging unit due to charging overcurrent, overvoltage protection, or temperature exceeding a certain threshold, the control module will enable the detection unit. At this time, the enabled detection unit can output the second signal.

[0123] In the disclosed embodiment, the second signal can replace the first signal output to indicate that charging is in progress. In this way, the display of the charging prompt can be directly controlled according to the output second signal, thereby reducing user misunderstanding caused by the charging unit being turned off and displaying an uncharged state when the wireless charging module is on the charging base. This has the characteristics of simple implementation and improves the user's wireless charging experience.

[0124] In some embodiments, sending the third signal to the wireless charging module includes: sending the third signal to the wireless charging module according to the temperature of the powered device.

[0125] In the embodiment of the present disclosure, since the temperature of the powered device will increase during the charging process, affecting the charging efficiency of the powered device, the wireless charging module will be provided with a temperature control system to send a third signal to the wireless charging module according to the temperature of the powered device. The temperature control system is used to feedback the temperature status of the powered device and instruct the charging unit to turn on or off.

[0126] In some embodiments, sending a third signal to the wireless charging module according to the temperature of the powered device includes: when the temperature of the powered device is greater than a first threshold, sending a third signal to the wireless charging module to instruct the charging unit to shut down.

[0127] In another embodiment, when the temperature of the powered device is less than or equal to the first threshold, a third signal instructing the charging unit to turn on is sent to the wireless charging module.

[0128] In the embodiment of the present disclosure, the first threshold is set according to the performance of the powered device and the influence of the ambient temperature.

[0129] Exemplarily, the first threshold is set between 38°C-45°C.

[0130] As another example, when the temperature of the powered device exceeds 39°C, a third signal is sent to the wireless charging module to instruct the charging unit to turn off and temporarily stop charging the powered device; when the temperature returns to equal to or lower than 39°C, a third signal is sent to the wireless charging module to instruct the charging unit to turn on and continue charging the powered device.

[0131] As another example, when the temperature of the powered device exceeds 41°C, a third signal is sent to the wireless charging module to instruct the charging unit to turn off and temporarily stop charging the powered device; when the temperature returns to equal to or lower than 41°C, a third signal is sent to the wireless charging module to instruct the charging unit to turn on and continue charging the powered device.

[0132] In the embodiment of the present disclosure, a third signal indicating whether the charging unit is turned on or off is sent to the wireless charging module according to the temperature of the powered device. The charging state of the wireless charging module can be detected and adjusted in real time according to the temperature change. In this way, not only the charging performance of the wireless charging module can be improved, but also the charging efficiency of the powered device can be improved, thereby improving the user experience.

[0133] In some embodiments, the method further includes: when the temperature of the powered device is greater than a first threshold, the control module enters a dormant state. In this way, the power consumption of the control module can be reduced, thereby reducing the power consumption of the entire wireless charging control module and improving the user experience.

[0134] Exemplarily, the embodiment of the present disclosure shows a specific example of a charging method, including:

[0135] When temperature control does not occur, if the smart watch is on the charging stand, the DET pin is detected to output a high level, and it is judged that it is currently in a charging state. If the smart watch is not on the charging stand, the DET pin is detected to output a low level, and it is judged that it is currently in a non-charging state.

[0136] When temperature control occurs, the sleep pin controls the RX chip to shut down, because the heat dissipation of the smart watch is poor, and the power consumption is reduced as much as possible during temperature control. If the smart watch is on the charging dock, then the DET pin is detected to output a high level at this time, and it is judged that it is currently in the charging state. If the smart watch is not on the charging dock, then the DET pin is detected to output a low level at this time; it is judged that it is not currently in the charging state.

[0137] The present disclosure also provides a wireless charging processing device, such as Fig.11 As shown, including:

[0138] A receiving module, configured to receive a first signal or a second signal output by the wireless charging module; wherein, when the first signal has a first signal value, the first signal indicates that the wireless charging module is in a charging state; and when the first signal has a second signal value, the first signal indicates that the wireless charging is not in a charging state; wherein, when the first coil is coupled with the second coil of the power supply device, the second signal has the first signal value; and when the first coil is not coupled with the second coil, the second signal has the second signal value;

[0139] The display module is used to display a charging prompt according to the first signal or the second signal.

[0140] In some embodiments, the display module is specifically configured to display a charging prompt when the first signal indicates that the charging unit is in a charging state or the second signal has a first signal value.

[0141] In some embodiments, Fig.12 As shown, the device also includes:

[0142] A sending module, used for sending a third signal to the wireless charging module; wherein the third signal is used to turn on or off the charging unit of the wireless charging module; when the charging unit is turned on, the detection unit of the wireless charging module is disabled, or, when the charging unit is turned off, the detection unit of the wireless charging module is enabled; the charging unit is used to output the first signal; and the detection unit is used to output the second signal.

[0143] In some embodiments, the sending device is specifically used to send a third signal to the wireless charging module according to the temperature of the powered device.

[0144] In some embodiments, the sending device is further specifically configured to:

[0145] When the temperature of the powered device is greater than a first threshold, a third signal instructing the charging unit to be turned off is sent to the wireless charging module, or,

[0146] When the temperature of the powered device is less than or equal to the first threshold, a third signal instructing the charging unit to be turned on is sent to the wireless charging module.

[0147] In some embodiments, Fig.13 As shown, the device also includes:

[0148] The indication module is used to indicate that the control module enters a sleep state when the temperature of the powered device is greater than a first threshold.

[0149] An embodiment of the present disclosure also provides an electronic device, comprising any of the wireless charging modules described above.

[0150] In the embodiment of the present disclosure, the electronic device may be a wearable device. For example, the electronic device is a smart watch.

[0151] In other embodiments, the electronic device further includes a battery, which is connected to the wireless charging module and is used to supply power to the wireless charging module.

[0152] In other embodiments, the electronic device further includes a display screen, which is electrically connected to a battery. The battery can be used to charge the display screen, and the display screen is used to display the charging status of the wireless charging module.

[0153] Exemplarily, a display screen of an electronic device may be used to display a charging reminder.

[0154] The electronic device further includes a control module, which is connected to the wireless charging module and the display screen respectively. Exemplarily, the control module controls the display of the charging prompt on the display screen according to the signal value of the received first signal or the second signal.

[0155] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0156] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A wireless charging module, characterized in that: include: First coil; A charging unit, electrically connected to the first coil, configured to output a first signal according to the electrical signal on the first coil when the charging unit is turned on, and to charge the powered device based on the electrical signal on the first coil; wherein, when the first signal has a first signal value, the first signal indicates that the wireless charging module is in a charging state; and when the first signal has a second signal value, the first signal indicates that the wireless charging module is not in a charging state; A detection unit is electrically connected to the first coil, and is used to output a second signal based on the electrical signal on the first coil when the charging unit is turned off; wherein, when the first coil is coupled with the second coil of the power supply device, the second signal has the first signal value; when the first coil is not coupled with the second coil, the second signal has the second signal value.

2. The wireless charging module according to claim 1, characterized in that: The wireless charging module comprises: an output pin, electrically connected to the charging unit and the detection unit, respectively, for outputting the first signal when the charging unit is turned on, and outputting the second signal when the charging unit is turned off; and / or, The input pins are electrically connected to the charging unit and the detection unit, respectively, and are used to receive a third signal output by the control module, wherein the third signal is used to control the charging unit to be turned on or off.

3. The wireless charging module according to claim 2, characterized in that: The third signal is also used to disable the detection unit when the charging unit is turned on, and to enable the detection unit when the charging unit is turned off; the enabled detection unit is used to output the second signal based on the electrical signal on the first coil.

4. The wireless charging module according to claim 3, characterized in that: The wireless charging module also includes: The first power supply is electrically connected to the detection unit and is a working power supply of the detection unit.

5. The wireless charging module according to claim 4, characterized in that: The output pin and / or the input pin are both connected to the basic input and output GPIO pin of the control module.

6. The wireless charging module according to claim 4, characterized in that: The detection unit includes: a pulse detection circuit electrically connected to the first coil.

7. A wireless charging processing method, characterized in that: Executed by a control module, the method includes: Receive a first signal or a second signal output by the wireless charging module according to any one of claims 1 to 6; when the first signal has a first signal value, the first signal indicates that the wireless charging module is in a charging state; when the first signal has a second signal value, the first signal indicates that the wireless charging is not in a charging state; when the first coil is coupled with the second coil of the power supply device, the second signal has the first signal value; when the first coil is not coupled with the second coil, the second signal has the second signal value; A charging reminder is displayed according to the first signal or the second signal.

8. The method according to claim 7, characterized in that Displaying a charging prompt according to the first signal or the second signal includes: When the first signal indicates that the charging unit is in a charging state or the second signal has a first signal value, a charging prompt is displayed.

9. The method according to claim 8, characterized in that The method further comprises: A third signal is sent to the wireless charging module; wherein the third signal is used to turn on or off the charging unit of the wireless charging module; when the charging unit is turned on, the detection unit of the wireless charging module is disabled, or, when the charging unit is turned off, the detection unit of the wireless charging module is enabled; the charging unit is used to output the first signal; and the detection unit is used to output the second signal.

10. The method according to claim 9, characterized in that The sending a third signal to the wireless charging module includes: A third signal is sent to the wireless charging module according to the temperature of the powered device.

11. The method according to claim 10, characterized in that The sending a third signal to the wireless charging module according to the temperature of the powered device includes: When the temperature of the powered device is greater than a first threshold, a third signal instructing the charging unit to be turned off is sent to the wireless charging module, or, When the temperature of the powered device is less than or equal to the first threshold, a third signal instructing the charging unit to be turned on is sent to the wireless charging module.

12. A wireless charging processing device, characterized in that: include: A receiving module, configured to receive a first signal or a second signal output by the wireless charging module according to any one of claims 1 to 6; wherein, when the first signal has a first signal value, the first signal indicates that the wireless charging module is in a charging state; when the first signal has a second signal value, the first signal indicates that the wireless charging is not in a charging state; wherein, when the first coil is coupled with the second coil of the power supply device, the second signal has the first signal value; when the first coil is not coupled with the second coil, the second signal has the second signal value; The display module is used to display a charging prompt according to the first signal or the second signal.

13. An electronic device, characterized in that: A wireless charging module comprising any one of claims 1-6.

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