WO2022199671A1

WO2022199671A1 - Charging method and apparatus, and electronic device and storage medium

Info

Publication number: WO2022199671A1
Application number: PCT/CN2022/082866
Authority: WO
Inventors: 王剑平; 周金星
Original assignee: 中兴通讯股份有限公司
Priority date: 2021-03-24
Filing date: 2022-03-24
Publication date: 2022-09-29
Also published as: CN115133588A

Abstract

Provided is a charging method, which is applied to a first electronic device, the first electronic device comprising a first battery and a wireless charging transmitting end. The method comprises: receiving an input from an external power supply to charge a first battery; determining that a second battery to be charged is present, wherein the second battery is arranged on a second electronic device; and wirelessly charging the second battery by means of a wireless charging transmitting end, wherein an electrical energy input of the wireless charging transmitting end is gated to electrical energy of the external power supply. In addition, further provided are a charging apparatus (300), an electronic device and a storage medium.

Description

Charging method, device, electronic device and storage medium

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is based on the Chinese patent application with the application number "202110313129.8" and the filing date is March 24, 2021, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated by reference Application.

technical field

The embodiments of the present application relate to the technical field of charging, and in particular, to a charging method, an apparatus, an electronic device, and a storage medium.

Background technique

With the development of science and technology and the improvement of people's living standards, electronic devices (such as mobile phones and wearable devices) can play more and more roles in people's life, work and study, and electronic devices require a certain amount of power to Therefore, the charging problem of electronic equipment is becoming more and more important.

However, it is currently impossible to simultaneously charge two electronic devices with only one charger and charging cable.

SUMMARY OF THE INVENTION

An embodiment of the present application provides a charging method, which is applied to a first electronic device. The first electronic device includes a first battery and a wireless charging transmitter. The method includes: receiving an input from an external power source to charge the first battery; The second battery is charged, and the second battery is arranged on the second electronic device; the second battery is wirelessly charged through the wireless charging transmitter, wherein the power input of the wireless charging transmitter is gated to the power of the external power supply.

The embodiment of the present application also provides a charging device, which is applied to a first electronic device. The first electronic device includes a first battery and a wireless charging transmitter, and the charging device includes: a receiving module for receiving an input from an external power supply to the first electronic device. The battery is charged; the determination module is used to determine that there is a second battery to be charged, and the second battery is set on the second electronic device; the charging control module is used to wirelessly charge the second battery through the wireless charging transmitter, wherein the The power input of the wireless charging transmitter is gated to the power of the external power supply.

An embodiment of the present application further provides an electronic device, comprising: at least one processor; and a memory connected in communication with the at least one processor; wherein, the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor. The processor executes to enable at least one processor to execute the above-described charging method.

Embodiments of the present application further provide a computer-readable storage medium, storing a computer program, and when the computer program is executed by a processor, the foregoing charging method is implemented.

Description of drawings

One or more embodiments are exemplified by the pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments.

FIG. 1 is a schematic flowchart of the charging method provided by the first embodiment of the present application;

FIG. 2 is a schematic diagram of the principle of wireless charging using a battery in the charging method provided by the first embodiment of the present application;

Fig. 3 is a schematic diagram of the principle of switching the power input of the wireless charging transmitter by the charging method provided by the first embodiment of the present application;

FIG. 4 is another schematic flowchart of the charging method provided by the first embodiment of the present application;

5 is a schematic diagram of a hardware structure of a first electronic device in the charging method provided by the first embodiment of the present application;

FIG. 6 is an example diagram of a charging scene according to the charging method provided in the first embodiment of the present application;

7 is a schematic flowchart of a charging method provided by a second embodiment of the present application;

FIG. 8 is another schematic flowchart of the charging method provided by the second embodiment of the present application;

FIG. 9 is a schematic diagram of the principle of the charging method provided by the second embodiment of the present application;

FIG. 10 is a schematic diagram of the principle of stacking charging by the charging method provided by the second embodiment of the present application;

FIG. 11 is an example diagram of a scene where the charging method provided by the second embodiment of the present application performs stack charging;

FIG. 12 is a scene example diagram of the charging method provided by the second embodiment of the present application;

FIG. 13 is a schematic structural diagram of a module of a charging device provided by a third embodiment of the present application;

FIG. 14 is a schematic structural diagram of an electronic device provided by a fourth embodiment of the present application.

Detailed ways

In order to make the objectives, technical solutions and advantages of the embodiments of the present application more clear, each embodiment of the present application will be described in detail below with reference to the accompanying drawings. However, those of ordinary skill in the art can understand that, in each embodiment of the present application, many technical details are provided for the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical solutions claimed in the present application can be realized. The following divisions of the various embodiments are for the convenience of description, and should not constitute any limitation on the specific implementation of the present application, and the various embodiments may be combined with each other and referred to each other on the premise of not contradicting each other.

The main purpose of the embodiments of the present application is to provide a charging method, device, electronic device and storage medium, which can simultaneously charge two electronic devices under the condition that there is only one charger and charging cable for one electronic device, and improve the charging efficiency. efficiency.

In the charging method proposed in the embodiment of the present application, when the battery of the electronic device is charged by receiving the input of the external power supply, if it is determined that there is a battery of other electronic device to be charged, the battery of the other electronic device is charged by the wireless charging transmitter terminal. For wireless charging, the power input of the wireless charging transmitter is gated to the power of the external power supply. By gating the power input of the wireless charging transmitter to the input of the external power supply, the output of the reverse charging of the electronic device can be switched from the battery to the external power supply, so that the reverse charging of other electronic devices can be realized while the battery is being charged. , which can realize the simultaneous charging of two electronic devices under the condition of only one charger and charging cable of one electronic device, shorten the time required for the entire charging process, and improve the charging efficiency.

The first embodiment of the present application provides a charging method, which is applied to a first electronic device. The first electronic device includes a first battery and a wireless charging transmitter. When charging the battery of the first electronic device by receiving an input of an external power supply , if it is determined that there is a second battery of the second electronic device to be charged, the second battery is wirelessly charged through the wireless charging transmitter, and the power input of the wireless charging transmitter is gated to the power of the external power supply. Because when the electronic device is reversely charged to other electronic devices, the battery is used for boosting and then used as an output to charge, and when the electronic device needs to charge the battery, the reverse charging is turned off, so the electronic device cannot be used to charge the battery. While charging, other electronic devices are reversely charged; and by gating the power input of the wireless charging transmitter to the external power supply, the output of the reverse charging of the electronic device can be switched from the battery to the external power supply, so that the electronic device can be reversely charged. When the battery is charged, the battery of other electronic devices can be reversely charged at the same time, which can realize the simultaneous charging of two electronic devices in the case of only one electronic device charger and charging cable, and shorten the time required for the entire charging process. , improve the charging efficiency.

It should be noted that the charging method provided in the embodiment of the present application is applied to the first electronic device, that is, the execution subject is the first electronic device. Among them, the first electronic device can be a mobile phone, a tablet computer or a wearable device, etc. The “first”, “second” or “third” etc. appearing in the application documents are for distinguishing different electronic devices, not as a sequence sexual or other restrictions.

It can be understood that the external power supply can be a wired power supply, such as a wired power supply connected to the first electronic device through a charging cable; it can also be a wireless power supply, such as a wireless charging stand connected to the first electronic device wirelessly or a power supply of other electronic devices. power supply. Correspondingly, when the external power supply is a wired power supply, the first electronic device needs to have a wired interface, but a wireless interface is not necessary; when the external power supply is a wireless power supply, the first electronic device needs to have a wireless interface, but the wired interface is not necessary. of. Of course, the first electronic device may have both a wired interface and a wireless interface.

The charging method provided by the embodiment of the present application is described by taking the external power supply as a wired power supply as an example, and the specific process is shown in FIG. 1 , including the following steps:

S101 : The wireless charging transmitter of the first electronic device uses the first battery as the power input to wirelessly charge the second battery of the second electronic device.

In this embodiment, after the first electronic device converts the power of the first battery, the power converted from the power is transmitted to the second battery for wireless charging through the wireless charging transmitter, wherein the second electronic device is a device that supports receiving wireless charging. The electronic device can receive the power transmitted by the first electronic device through the wireless charging transmitter.

For example, in a specific embodiment, the power conversion module may be a boost chip. After the mobile phone boosts its own battery, the boosted power is transmitted to other mobile phones through the wireless charging transmitter for wireless charging. Other mobile phones are mobile phones that support receiving wireless charging.

Please refer to FIG. 2 , which is a schematic diagram of the principle of the charging method provided by the embodiment of the present application. Specifically, when the wired power input in the figure is not connected and the second battery of the second electronic device is wirelessly charged by the wireless charging transmitter, the power input of the wireless transmitter is the battery (the first battery), and the power of the battery The electrical energy is sent to the PMIC (Power Management IC, power management IC) through the Vbat pin, and then sent to the Boost booster chip through the Vsys pin of the PMIC. After being boosted by the Boost booster chip, it is sent to the wireless chip through the Tx pin. The wireless charging coil transmits the boosted electric energy to the second battery of the second electronic device, wherein the wireless charging transmitting end of the first electronic device may be the wireless charging coil in the figure. It should be noted that FIG. 2 is only one embodiment of wireless charging of the first electronic device, and other embodiments may also be used in practice. For example, the PMIC in the figure may be composed of one or more PMICs and a fuel gauge. Power management module instead, Figure 2 is for illustration only and should not be taken as a limitation.

It can be understood that the purpose of boosting the battery by the first electronic device is to make the boosted voltage meet the requirements of the second electronic device, that is, the purpose is to make the converted voltage meet the requirements of the charging object, so the battery is boosted. The way of pressing is not the only way, it can be other ways. In other specific embodiments, the power conversion module can be a buck step-down, as long as the corresponding voltage (level) conversion can be achieved. For example, the Boost boost chip in FIG. 2 can be replaced by a level conversion module. Here No specific restrictions are imposed.

S102: Determine whether a wired power input is received to charge the first battery, if so, go to S103, otherwise, return to S101.

In this embodiment, the first electronic device can judge through the input of the wired interface, for example, through the input of the USB interface, when receiving the input of the wired power supply, go to S103; otherwise, return to S101 to continue to use the first battery as the power input Wireless charging. When it is determined that a wired power input is received to charge the first battery, since the second battery is being charged, it is also determined that there is a second battery to be charged.

S103: Switch the power input of the wireless charging transmitter from the power of the first battery to the power of the wired power supply, and use the wired power supply to charge the first battery.

Please continue to refer to Figure 2, when the wired power is input, the power input of the wireless charging transmitter is switched from the battery (the first battery) to the wired power, the control chip gates the wired power input to Vbus and inputs it to the PMIC, and the PMIC converts the wired power The electric energy of the power supply is input to the battery (first battery) through the Vbat pin for charging, and the electric energy of the wired power supply is sent to the Boost booster chip through the Vsys pin, and then sent to the wireless chip through the Tx pin after being boosted by the Boost booster chip. The chip transmits the boosted power to the second battery of the second electronic device through the wireless charging coil.

Please refer to FIG. 3 , which is a schematic diagram of the principle of switching the power input of the wireless charging transmitter by the charging method provided by the embodiment of the present application. Specifically, when the first electronic device uses the wireless charging transmitter to wirelessly charge the second electronic device, the control module gates the power input of the wireless charging transmitter of the first device (the first electronic device) to the battery (the first electronic device). battery), boost the voltage of the battery (first battery) and transmit it to the wireless charging receiver of the second device (second electronic device) through the wireless charging transmitter; when connecting to the wired power supply, turn off the A battery) boosting path, the control module switches the power input of the wireless charging transmitter of the first electronic device to the wired battery, and then transmits the power of the wired power source to the second device through the wireless charging transmitter. It should be noted that FIG. 3 is only one embodiment of switching the power input when the first electronic device wirelessly charges the second electronic device, and it may actually be other embodiments. It should be used as a limit.

Since the power input of the wireless charging transmitter is switched from the battery of the first electronic device to the wired power supply, the first battery of the first electronic device is no longer output as power, so the wired power supply can be used to charge the first battery at this time. In addition, by switching the power input of the wireless charging transmitter to the wired power supply, the second battery of the second electronic device can continue to be charged wirelessly; and since the power input is switched from the first battery to the wired power supply, the wired power supply is input through Vbus, not It needs to be boosted by Boost, so it can improve the efficiency of charging.

It can be understood that the above S101-S103 refer to the method in the scenario where the second electronic device is wirelessly charged first and then connected to the wired power supply. , that is, as shown in FIG. 4 , the charging method provided by the embodiment of the present application may also be a process including the following steps:

S101': The first battery of the first electronic device is charged using a wired power supply.

S102': Determine whether it is necessary to use the wireless charging transmitter of the first electronic device to wirelessly charge the second battery of the second electronic device, if necessary, enter S103', otherwise return to S101'.

In a specific example, S102' may specifically include: when the first battery of the first electronic device is charged with an external wired power supply, use the wireless charging transmitter to periodically send a wireless charging broadcast message; If the second electronic device responds to the wireless charging broadcast message, then the second electronic device is identified and authenticated; if the identification and authentication are successful, it is determined that the wireless charging transmitter of the first electronic device needs to be used to certify the second electronic device. The battery is wirelessly charged, and it is determined that there is a second battery to be charged.

Please refer to FIG. 5 , which is a schematic diagram of a hardware structure of a first electronic device in a charging method provided by an embodiment of the present application. Specifically, when the first battery of the first electronic device is charged with a wired power supply, the wired power supply is input to the power management module, and the power management module inputs the wired power supply to the battery (the first battery) for charging; The wireless charging management module (which is a functional part of the wireless chip in Figure 2) starts the wireless charging detection, and periodically sends the wireless charging broadcast message (wireless charging handshake broadcast packet) through the wireless charging coil (wireless charging transmitter); The electronic device is close (for example, placed on the wireless charging coil of the first electronic device), and the second electronic device replies with a response message. After receiving the response message, the first electronic device performs protocol authentication (authentication identification) on the second electronic device. ), if the authentication is successful, the first electronic device determines that the wireless charging transmitter needs to be used for wireless charging, and then gates the power input of the wireless charging transmitter to the wired power supply to wirelessly charge the second battery of the second electronic device. It should be noted that FIG. 5 is only an exemplary illustration of a hardware block diagram of an electronic device, and should not be taken as a limitation.

S103': Gating the power input of the wireless charging transmitter to the wired power supply.

It can be understood that after gating the power input of the wireless charging transmitter to the wired power supply, the power of the wireless charging transmitter of the first electronic device is the power of the wired power supply, not the power of the first battery, so the first battery can be used at this time. Continue to charge with power from the wired power supply.

Please refer to FIG. 6 , which is an example diagram of a charging scenario in the charging method provided by the embodiment of the present application. Specifically, the mobile phone (the first electronic device) charges the battery of the mobile phone through the wired power supply (the charger and the data cable in the figure), and at the same time, the mobile phone gates the power input of the wireless charging transmitter to the wired power supply for the second electronic device. Wireless charging.

In this embodiment, the first electronic device and the second electronic device conduct handshake negotiation of charging power according to the wireless charging protocol standard. For example, if the first electronic device is used as the wireless charging transmitter, the second electronic device is used as the wireless charging receiver. , both of which have passed the QI standard certification, the first electronic device will charge the second electronic device with high power negotiation (such as QI EPP, Extended Power Profile) according to the wireless charging standard protocol; if the first electronic device passes the standard certification, the second electronic device If the electronic device has not passed the standard certification, the first electronic device charges the second electronic device according to low power (eg BPP: Basic Power Profile).

In a specific example, the path for charging the first battery by the external power source is different from the path for charging the second battery by the first electronic device, and the power input of the wireless charging transmitter of the first electronic device is gated to the external power source Finally, the method further includes: if the power of the first battery reaches a preset power threshold, turning off the external power supply to charge the first battery. Among them, the preset power threshold can be set according to actual needs and specific scenarios, such as 50%, 70% and 100%. In some scenarios, the power of the first battery needs to be controlled, for example, it is desired to control the power of the first battery within a preset range, or when the power of the first battery is fully charged, the external power supply can be turned off to charge the first battery The path is equivalent to using the first electronic device as a wireless charger to charge the second electronic device. Optionally, the path for charging the first battery by the external power supply may also be turned off when an instruction input by the user on the electronic device is received. It can be understood that, when the path for charging the first battery by the external power source is different from the path for charging the second battery by the first electronic device, by gating the power input of the wireless charging transmitter of the first electronic device. After reaching the external power supply, if the power of the first battery reaches the preset power threshold, the path for charging the first battery by the external power supply is closed, so that the power of the first battery can be effectively controlled.

In a specific example, if the wired power supply is pulled out or the first battery is not connected to the wired power supply for charging, the power input of the wireless charging transmitter of the first electronic device is gated to the first battery. When the wireless charging transmitter needs to be used to wirelessly charge the second battery, the second battery is wirelessly charged after boosting the voltage of the first battery.

It should be noted that at present, when there is only one charger and charging cable, if you want to charge two electronic devices, you need to charge the two electronic devices successively: 1. When the charging interface is the same, first charge the two electronic devices. One of the electronic devices is charged, and then the other electronic device is charged; 2. When the charging interface is different, first charge the electronic device with the charging interface, and then use the charged electronic device to charge the other electronic device. With wireless charging, the entire charging process takes a long time and the charging efficiency is low.

In the charging method provided by the embodiment of the present application, when the electronic device uses the wireless charging transmitter to wirelessly charge other electronic devices, if there is an external wired power input, the power input of the wireless charging transmitter is gated to the wired power source. Because when the electronic device is reversely charged to other electronic devices, the battery is used for boosting and then charged as an output, and when the electronic device needs to charge the battery, the reverse charging is turned off, so the electronic device cannot The battery is charged and other electronic devices are reversely charged at the same time; and by gating the power input of the wireless charging transmitter to the wired power supply for charging the battery, the battery can be charged at the same time as other electronic devices. For charging, two electronic devices can be charged at the same time under the condition that there is only a charger and a charging cable for one electronic device, the time required for the entire charging process is shortened, and the charging efficiency is improved.

The second embodiment of the present application provides a charging method. The second embodiment is substantially the same as the first embodiment, except that the first electronic device further includes a wireless charging receiving end, and the first electronic device receives external charging through the wireless charging receiving end. Power input electrical energy.

The specific process of the charging method provided by the embodiment of the present application is shown in FIG. 7 , which specifically includes the following steps:

S201: The wireless charging transmitter of the first electronic device uses the electric energy of the first battery to wirelessly charge the second battery of the second electronic device.

Wherein, S201 is basically the same as S101 in the first embodiment. For details, please refer to the relevant description in the first embodiment. In order to avoid repetition, details are not repeated here.

S202: Determine whether the input of the external power source is received through the wireless charging receiving end of the first electronic device, if so, go to S203, otherwise, return to S201.

The input of the external power supply can be the power transmitted by the power supply of the wireless charging stand to the first electronic device, or it can be the power transmitted by other electronic devices to the first electronic device through its own wireless charging transmitter. The electric energy transmitted by the third electronic device to the first electronic device through its own wireless charging transmitter is used as an example for description.

In this embodiment, when the first electronic device has no external power input, if the wireless charging receiver receives the wireless charging broadcast of the third electronic device, the wireless charging request is sent to the third electronic device. If the third electronic device passes, it is determined that an external power input is received, and S203 is executed; otherwise, it returns to S201 to continue wirelessly charging the second battery with the first battery as the power input. When it is determined that the input of the external power source is received, since the second battery is being charged, it is also determined that there is a second battery to be charged.

For example, the first electronic device may be close to the third electronic device (into the range of the wireless charging broadcast of the third electronic device), and when receiving the wireless charging broadcast of the third electronic device, send a request for wireless charging authentication to the third electronic device . Wherein, when the request for wireless charging authentication is sent to the third electronic device, it may be sent after receiving the user's instruction input on the first electronic device.

S203: Switch the power input of the wireless charging transmitter from the power of the first battery to the power of the external power source, and use the power of the external power source to charge the first battery.

In a specific example, when the power input of the wireless charging transmitter is switched from the power of the battery of the first electronic device to the power of the external power supply, the battery of the first electronic device may not be charged (for example, when it is necessary to control the first electronic device) In the case of the battery level of the electronic device), this can be achieved by closing the path for charging the battery.

Similar to the first embodiment, S201-S203 refer to the method in the scenario of wirelessly charging the second electronic device and then receiving power through the wireless charging receiver. In the scenario where the second electronic device performs wireless charging, as shown in FIG. 8 , the charging method provided by the embodiment of the present application may also be a process including the following steps:

S201': The first battery of the first electronic device is charged with the electric energy received by the wireless charging receiving end.

Wherein, the electric energy received by the wireless charging receiving end can be the electric energy transmitted by the wireless charging base to the first electronic device, or it can be the electric energy transmitted by other electronic devices to the first electronic device through their own wireless charging transmitting end.

S202': Determine whether it is necessary to use the wireless charging transmitter of the first electronic device to wirelessly charge the second battery of the second electronic device, if necessary, enter S203', otherwise return to S201'.

Wherein, the content described in S202' is basically the same as that described in S102' in the first embodiment. For details, please refer to the relevant description in the first embodiment. In order to avoid repetition, details are not repeated here.

S203': Gating the power input of the wireless charging transmitter to the power received by the wireless charging receiver.

It can be understood that after gating the power input of the wireless charging transmitter to the power received by the wireless charging receiver, the power of the wireless charging transmitter of the first electronic device is the external power input, not the battery, so the battery can continue Use the power received by the wireless charging receiver to charge.

Please refer to FIG. 9 , which is a schematic schematic diagram of a charging method provided by an embodiment of the present application. Specifically, when the wired power input in the figure is not connected, the first electronic device receives external power input through the wireless charging receiving end (wireless charging coil 1 in the figure), and inputs the power through the Rx pin of the wireless chip 1 To the control chip 2, the control chip 2 connects the power input to the PMIC through the Vbus pin, the PMIC inputs the power to the Vbat pin to charge the battery (the first battery), and at the same time can input the power to the Vsys pin. After pressing the chip, it is sent to the wireless chip 2 through the Tx pin, and then the second battery of the second electronic device is charged through the wireless charging transmitter (the wireless charging coil 2 in the figure). It should be noted that FIG. 9 is only one of the embodiments in which the first electronic device uses the wireless charging transmitter to wirelessly charge the second electronic device and uses the wireless charging receiver to receive the external power input, and it can actually be another embodiment. For example, the PMIC in the figure can be replaced by a power management module composed of one or more PMICs and a fuel gauge, etc. Figure 9 is only an example and should not be regarded as a limitation; It contains two wireless chips and two wireless charging coils, wherein the two wireless charging coils are the wireless charging receiving end and the wireless charging transmitting end respectively. In fact, when the first electronic device only includes one wireless chip and one wireless charging coil, Its wireless charging coil can be used as a wireless charging transmitter or a wireless charging receiver under the control of the wireless chip; when the wireless charging coil is used as a wireless charging transmitter, it is equivalent to Figure 2, and the first electronic device is using a wired power supply. While charging the battery (the first battery), the power of the wired power supply is sent to the wireless chip through the Tx pin through the Vsys pin of the PMIC, and then transmitted through the wireless charging coil used as the wireless charging transmitter to the second electronic device. The second battery is charged; when the wireless charging coil is used as the wireless charging receiving end, it is equivalent to that there is no wireless chip 2 and wireless charging coil 2 in FIG. Receive external power, receive the control chip through the Rx pin of the wireless chip (wireless chip 1), then pass the Vbus pin to the PMIC, and finally charge the battery (first battery) of the first electronic device through the Vbat pin.

It should be understood that the effect of stacking charging of multiple electronic devices can be achieved through the above charging method. Please refer to FIG. 10 , which is a schematic diagram of the principle of stacking charging by the charging method provided by the embodiment of the present application. Specifically, when the first device (the first electronic device) is not connected to the wired power supply, the first device can transmit the power of its own battery to the second device (the second electronic device) through the wireless charging transmitter for wireless charging ; The second device can transmit the received power of the first device to the battery of the third device (third electronic device) for wireless charging through its own wireless charging transmitter while charging its own battery; While charging its own battery, the device transmits the received power of the first device to a fourth device (a fourth electronic device, not shown in the figure) through its own wireless charging transmitter for wireless charging..., In this way, the effect of stacking charging of multiple electronic devices can be achieved. An example scene diagram is shown in Figure 11. If the first device is connected to a wired power supply, the first device can use the wired power supply to charge its own battery, and use its own wireless charging transmitter to transmit the power of the wired power supply to the second device for wireless charging (Contents in the first embodiment). Of course, the first device may also receive power input from an external power source through its own wireless charging receiver. For example, as shown in FIG. 12 , the mobile phone (the first device) receives an external wireless charger (including a wireless charger) through its own wireless charging receiver. Charger, data cable and wireless charging base) power input to charge the battery, and at the same time transmit the power of the wireless charger received by the wireless charging receiver to other electronic devices for wireless charging.

It should be noted that: 1. The above paragraph takes the first device (the lowermost device) as the original power output for illustration, and in fact, the uppermost device (the device N in FIG. 11 ) can also be used as the original power Correspondingly, when the bottommost device is used as the raw power output, the topmost device can only have a wireless charging receiver without a wireless charging transmitter; when the topmost device is used as the raw power output, the bottommost The device can only have a wireless charging receiver but not a wireless charging transmitter; 2. The intermediate device can not charge its own battery but only wirelessly charge, as shown in Figure 10, the second device does not charge its own battery and only charges The third device performs wireless charging; 3. The above charging process refers to the process of charging multiple electronic devices at the same time. If there is a sequence, it is not limited to using the bottom or top electronic device as the original power output, for example, it can be In Figure 10, the second device first wirelessly charges the first device, and then wirelessly charges the third device. The wireless charging protocol only needs to shake hands. For example, if the wireless charging coils of the electronic device are set up and down, the stacking method can be used, and if the wireless charging coils of the electronic device are set up on the left and right, the side-by-side method can be used.

In a specific example, when the first electronic device uses the power of the first battery to wirelessly charge the second battery of the second electronic device, for example, the wired power is pulled out or the first battery is not connected to the wired power, if the second battery is When the difference in power between the battery and the first battery is less than or equal to the preset threshold, the wireless charging of the second battery is stopped. Among them, the preset threshold can be set according to actual needs, and the power difference value can refer to the difference value of the power percentage, the difference value of the remaining total power (capacity), or the voltage value of the battery. The voltage value of the battery has a corresponding relationship with the power of the battery. For example, when the voltage is fully charged, the voltage is 4.5V, the voltage is 4.3V when the power is 80%, and the voltage is 3.5V when the power is 20%. Therefore, it can be determined by the difference between the voltage values. Indirectly reflect the difference in power. It should be understood that, in a stack charging (non-simultaneous charging) scenario, multiple electronic devices can achieve power balance by stopping wireless charging of other electronic devices when the power difference is less than a preset threshold. Taking FIG. 10 as an example, if the preset threshold is 0, the total remaining power of each electronic device at the beginning is: 1000mAh (mAh) for the first device, 600mAh for the second device, and 200mAh for the third device. Wirelessly charge the second device until the first device and the second device are both 800mAh; then the second device will wirelessly charge the third device until the second device and the third device are both 500mAh; then the first device Wirelessly charge the second device... Finally, the power of the first device, the second device and the third device is balanced to 600mAh, which achieves the effect of power balance. In practical applications, the above method of power balancing can be applied to a device with multiple battery packs, which can balance the life of the batteries and prevent the problem that the battery pack cannot be used due to the exhaustion of the life of a certain battery. But at the same time, it should be noted that the charging method provided by the embodiments of the present application may be an electronic device with a large-capacity battery to wirelessly charge an electronic device with a small-capacity battery, or an electronic device with a small-capacity battery may charge an electronic device with a large-capacity battery. For wireless charging, there is no limit to the battery capacity itself.

In the charging method provided by the embodiment of the present application, when the electronic device uses the wireless charging transmitter to wirelessly charge other electronic devices, if there is power received by the wireless charging receiver, the power input of the wireless charging transmitter is gated to the wireless charging The electric energy received by the charging receiving end can realize the wireless charging of the battery of the electronic device, and realize the wireless charging of other electronic devices by the electronic device, so as to realize the effect of charging multiple electronic devices at the same time, and improve the charging efficiency.

In addition, those skilled in the art can understand that the division of steps of the various methods above is only for the purpose of describing clearly, and may be combined into one step or split into several steps during implementation, and decomposed into multiple steps, as long as the same logical relationship is included , are all within the protection scope of this patent; adding insignificant modifications to the algorithm or process or introducing insignificant designs, but not changing the core design of the algorithm and process are all within the protection scope of this patent.

A third embodiment of the present application provides a charging apparatus 300, as shown in FIG. 13, which is applied to electronic equipment, where the electronic equipment includes a battery and a wireless charging transmitter, wherein the charging apparatus 300 includes a receiving module 301, a determining module 302 and Charging control module 303 .

a receiving module 301, configured to receive an input of an external power source to charge the first battery;

A determination module 302, configured to determine that there is a second battery to be charged, and the second battery is set on the second electronic device;

The charging control module 303 is used for wirelessly charging the second battery through the wireless charging transmitter, wherein the power input of the wireless charging transmitter is gated to the power of the external power source.

Further, the determining module 302 is specifically used for:

When receiving the input of the external power source to charge the first battery, if the wireless charging transmitter needs to be used for wireless charging, it is determined that there is a second battery to be charged.

Further, the charging device 300 provided in the embodiment of the present application further includes an authentication module, wherein the authentication module is used for:

Use the wireless charging transmitter to regularly send wireless charging broadcast messages;

If a response message from the second electronic device to the wireless charging broadcast message is received, identifying and authenticating the second electronic device;

If the identification and authentication are successful, it is determined that the wireless charging transmitter needs to be used for wireless charging.

Further, the path through which the external power source charges the first battery is different from the path through which the first electronic device charges the second battery.

Further, the first electronic device further includes a wireless charging receiving end, and the input of the external power source is the input of the wired power supply or the power input received by the wireless charging receiving end.

Further, the second electronic device is stacked above or below the first electronic device, or the second electronic device is placed side by side with the first electronic device.

Further, the charging control module 303 is further configured to: when the wireless charging transmitter uses the power of the first battery to wirelessly charge the second battery, if the power difference between the second battery and the first battery is less than or equal to a preset threshold, Then the wireless charging of the second battery is stopped.

It is not difficult to find that this embodiment is an apparatus embodiment corresponding to the foregoing method embodiment, and this embodiment can be implemented in cooperation with the foregoing method embodiment. The relevant technical details mentioned in the foregoing method embodiments are still valid in this embodiment, and are not repeated here in order to reduce repetition. Correspondingly, the relevant technical details mentioned in this embodiment can also be applied to the foregoing method embodiments.

It is worth mentioning that all the modules involved in this embodiment are logical modules. In practical applications, a logical unit may be a physical unit, a part of a physical unit, or multiple physical units. A composite implementation of the unit. In addition, in order to highlight the innovative part of the present application, this embodiment does not introduce units that are not closely related to solving the technical problem raised by the present application, but this does not mean that there are no other units in this embodiment.

The fourth embodiment of the present application relates to an electronic device, as shown in FIG. 14 , comprising: at least one processor 401 ; and a memory 402 communicatively connected to the at least one processor 401 ; wherein the memory 402 stores data that can be accessed by at least one processor 401 . Instructions executed by one processor 401, the instructions are executed by at least one processor 401, so that at least one processor 401 can execute the above charging method.

The memory and the processor are connected by a bus, and the bus may include any number of interconnected buses and bridges, and the bus connects one or more processors and various circuits of the memory. The bus may also connect together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. The bus interface provides the interface between the bus and the transceiver. A transceiver may be a single element or multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other devices over a transmission medium. The data processed by the processor is transmitted on the wireless medium through the antenna, and further, the antenna also receives the data and transmits the data to the processor.

The processor is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interface, voltage regulation, power management, and other control functions. Instead, memory may be used to store data used by the processor in performing operations.

The fifth embodiment of the present application relates to a computer-readable storage medium storing a computer program. The above method embodiments are implemented when the computer program is executed by the processor.

That is, those skilled in the art can understand that all or part of the steps in the method for implementing the above embodiments can be completed by instructing the relevant hardware through a program, and the program is stored in a storage medium and includes several instructions to make a device ( It may be a single chip microcomputer, a chip, etc.) or a processor (processor) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes .

Those of ordinary skill in the art can understand that the above-mentioned embodiments are specific embodiments for realizing the present application, and in practical applications, various changes in form and details can be made without departing from the spirit and the spirit of the present application. scope.

Claims

A charging method, applied to a first electronic device, the first electronic device comprising a first battery and a wireless charging transmitter, the method comprising:

receiving an input of an external power source to charge the first battery;

determining that there is a second battery to be charged, the second battery being provided on the second electronic device;

The second battery is wirelessly charged by the wireless charging transmitter, wherein the power input of the wireless charging transmitter is gated to the power of the external power source.
The charging method according to claim 1, wherein the determining that there is a second battery to be charged comprises:

When receiving the input of an external power source to charge the first battery, if the wireless charging transmitter needs to be used for wireless charging, it is determined that there is a second battery to be charged.
The charging method according to claim 2, wherein before the wireless charging is performed by using the wireless charging transmitter if necessary, the method further comprises:

Use the wireless charging transmitter to regularly send wireless charging broadcast messages;

If a response message from the second electronic device to the wireless charging broadcast message is received, identifying and authenticating the second electronic device;

If the identification and authentication are successful, it is determined that the wireless charging transmitter needs to be used for wireless charging.
The charging method according to any one of claims 1-3, wherein a path for charging the first battery by the external power source is different from a path for charging the second battery by the first electronic device .
The charging method according to any one of claims 1-4, wherein the first electronic device further comprises a wireless charging receiving end, and the input of the external power supply is the input of a wired power supply or the wireless charging receiving end. Power input.
The charging method according to any one of claims 1-5, wherein the second electronic device is stacked on or below the first electronic device, or, the second electronic device and the first electronic device are stacked. An electronic device is placed side by side.
The charging method according to any one of claims 1-6, further comprising:

When the wireless charging transmitter uses the power of the first battery to wirelessly charge the second battery, if the power difference between the second battery and the first battery is less than or equal to a preset threshold, then Wireless charging of the second battery is stopped.
A charging device is applied to a first electronic device, the first electronic device includes a first battery and a wireless charging transmitter, and the charging device includes:

a receiving module for receiving the input of an external power source to charge the first battery;

a determining module, configured to determine that there is a second battery to be charged, the second battery is provided on the second electronic device;

The charging control module is used for wirelessly charging the second battery through the wireless charging transmitter, wherein the power input of the wireless charging transmitter is gated to the power of the external power source.
An electronic device comprising:

at least one processor; and,

a memory communicatively coupled to the at least one processor; wherein,

The memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the execution of any one of claims 1 to 7 charging method.
A computer-readable storage medium storing a computer program, which implements the charging method according to any one of claims 1 to 7 when the computer program is executed by a processor.