CN110854977A - Wireless charging method, storage medium, electronic device and charging device - Google Patents
Wireless charging method, storage medium, electronic device and charging device Download PDFInfo
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- CN110854977A CN110854977A CN201810827359.4A CN201810827359A CN110854977A CN 110854977 A CN110854977 A CN 110854977A CN 201810827359 A CN201810827359 A CN 201810827359A CN 110854977 A CN110854977 A CN 110854977A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/20—Circuit arrangements or systems for wireless supply or distribution of electric power using microwaves or radio frequency waves
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
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Abstract
The embodiment of the application provides a wireless charging method, a storage medium, electronic equipment and a charging device, wherein the method comprises the following steps: acquiring the current temperature of the first receiving coil and the second receiving coil and the current electric quantity of the battery in real time; when the current temperature is lower than a first preset temperature threshold and the current electric quantity is lower than a preset electric quantity threshold, controlling the first receiving coil and the second receiving coil to simultaneously receive electromagnetic energy; when the current temperature is greater than a first preset temperature threshold value or when the current electric quantity is greater than a preset electric quantity threshold value, setting a plurality of charging time periods, wherein each charging time period comprises a first sub-charging time period and a second sub-charging time period; controlling the first receiving coil to receive electromagnetic energy and controlling the second receiving coil to be in an idle state in the first sub-charging time period; and controlling the second receiving coil to receive the electromagnetic energy and controlling the first receiving coil to be in an idle state in the second sub-charging time period. Not only can realize continuous charging, but also can reduce the temperature of the receiving coil.
Description
Technical Field
The present disclosure relates to the field of electronic devices, and more particularly, to a wireless charging method, a storage medium, an electronic device, and a charging device.
Background
The heating value of wireless charging is larger than that of traditional wired charging. For the receiving end, there is a resistive loss of the receiving coil. In addition to the resistive losses of the coil, there are also losses in the rectifier circuit and power conversion at the back end. These losses constitute a heat source for wireless charging of the electronic device. When receiving electric energy with a large power, the current inside the coil is very large, the generated resistive loss is also very large, large heat is easily generated, and the temperature of the electronic equipment is high.
Disclosure of Invention
The embodiment of the application provides a wireless charging method, a storage medium, an electronic device and a charging device, which can reduce heat generation in a wireless charging process.
The embodiment of the application provides a wireless charging method, which is applied to electronic equipment, wherein the electronic equipment comprises a battery, a first receiving coil and a second receiving coil which are arranged at intervals; the method comprises the following steps:
acquiring the current temperature of the first receiving coil and the second receiving coil and the current electric quantity of the battery in real time;
when the current temperature is lower than a first preset temperature threshold value and the current electric quantity is lower than a preset electric quantity threshold value, controlling the first receiving coil and the second receiving coil to simultaneously receive electromagnetic energy and convert the electromagnetic energy into electric energy to charge the battery;
when the current temperature is greater than a first preset temperature threshold value or when the current electric quantity is greater than a preset electric quantity threshold value, setting a plurality of charging time periods, wherein each charging time period comprises a first sub-charging time period and a second sub-charging time period;
controlling the first receiving coil to receive electromagnetic energy and controlling the second receiving coil to be in an idle state in a first sub-charging time period;
and controlling the second receiving coil to receive electromagnetic energy and controlling the first receiving coil to be in an idle state in a second sub-charging time period.
The embodiment of the application also provides a wireless charging method which is applied to a charging device, wherein the charging device charges a battery of electronic equipment, and the charging device comprises a first transmitting coil and a second transmitting coil which are arranged at intervals; the method comprises the following steps:
acquiring the current temperature of a first receiving coil and a second receiving coil of the electronic equipment and the current electric quantity of a battery of the electronic equipment in real time;
when the current temperature is lower than a first preset temperature threshold value and the current electric quantity is lower than a preset electric quantity threshold value, controlling the first transmitting coil and the second transmitting coil to simultaneously transmit electromagnetic energy;
when the current temperature is greater than a first preset temperature threshold value or when the current electric quantity is greater than a preset electric quantity threshold value, setting a plurality of charging time periods, wherein each charging time period comprises a first sub-charging time period and a second sub-charging time period;
controlling the first transmitting coil to transmit electromagnetic energy and controlling the second transmitting coil to be in an idle state in a first sub-charging time period;
and controlling the second transmitting coil to transmit electromagnetic energy and controlling the first transmitting coil to be in an idle state in a second sub-charging time period.
The embodiment of the present application further provides a storage medium, on which a computer program is stored, and when the computer program runs on a computer, the computer is caused to execute the wireless charging method described above.
The embodiment of the present application further provides an electronic device, which includes a processor and a memory, where the memory stores a computer program, and the processor is configured to execute the steps of the wireless charging method by calling the computer program.
The embodiment of the application also provides electronic equipment, which comprises a first processor, a battery, a first receiving coil and a second receiving coil, wherein the first receiving coil and the second receiving coil are arranged at intervals;
the first processor is electrically connected with the first receiving coil, the second receiving coil and the battery respectively, and the first processor acquires the current temperature of the first receiving coil and the second receiving coil and the current electric quantity of the battery in real time;
when the current temperature is lower than a first preset temperature threshold and the current electric quantity is lower than a preset electric quantity threshold, the first processor controls the first receiving coil and the second receiving coil to simultaneously receive electromagnetic energy and converts the electromagnetic energy into electric energy to charge the battery;
when the current temperature is greater than a first preset temperature threshold value or when the current electric quantity is greater than a preset electric quantity threshold value, the first processor sets a plurality of charging time periods, wherein each charging time period comprises a first sub-charging time period and a second sub-charging time period;
the first processor controls the first receiving coil to receive electromagnetic energy and controls the second receiving coil to be in an idle state in a first sub-charging time period;
the first processor controls the second receiving coil to receive electromagnetic energy and controls the first receiving coil to be in an idle state in a second sub-charging period.
The embodiment of the application also provides a charging device, wherein the charging device charges a battery of the electronic equipment, and the charging device comprises a second processor, a first transmitting coil and a second transmitting coil which are arranged at intervals;
the second processor acquires state information sent by the electronic equipment in real time, wherein the state information comprises the current temperature of a first receiving coil and a second receiving coil of the electronic equipment and the current electric quantity of a battery of the electronic equipment;
when the current temperature is lower than a first preset temperature threshold value and the current electric quantity is lower than a preset electric quantity threshold value, the second processor controls the first transmitting coil and the second transmitting coil to simultaneously transmit electromagnetic energy;
when the current temperature is greater than a first preset temperature threshold value or when the current electric quantity is greater than a preset electric quantity threshold value, the second processor sets a plurality of charging time periods, wherein each charging time period comprises a first sub-charging time period and a second sub-charging time period;
the second processor controls the first transmitting coil to transmit electromagnetic energy and controls the second transmitting coil to be in an idle state in a first sub-charging time period;
the second processor controls the second transmitting coil to transmit electromagnetic energy and controls the first transmitting coil to be in an idle state during a second sub-charging period.
According to the wireless charging method provided by the embodiment of the application, the current temperatures of the first receiving coil and the second receiving coil and the current electric quantity of the battery are obtained in real time; when the current temperature is lower than a first preset temperature threshold value and the current electric quantity is lower than a preset electric quantity threshold value, the first receiving coil and the second receiving coil are controlled to receive electromagnetic energy, the electromagnetic energy is converted into electric energy to charge the battery, and quick charging is achieved. When the current temperature is greater than a first preset temperature threshold value or when the current electric quantity is greater than a preset electric quantity threshold value, setting a plurality of charging time periods, wherein each charging time period comprises a first sub-charging time period and a second sub-charging time period; controlling the first receiving coil to receive electromagnetic energy and controlling the second receiving coil to be in an idle state in the first sub-charging time period; and controlling the second receiving coil to simultaneously receive the electromagnetic energy and controlling the first receiving coil to be in an idle state in the second sub-charging time period. The first receiving coil and the second receiving coil are used in a time-sharing mode, namely only one of the two receiving coils is used for receiving electromagnetic energy, so that continuous charging can be achieved, and the temperature of the receiving coils can be reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a first structural schematic diagram of an electronic device according to an embodiment of the present application.
Fig. 2 is a second schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 3 is a schematic flowchart of a wireless charging method according to an embodiment of the present disclosure.
Fig. 4 is another schematic flowchart of a wireless charging method according to an embodiment of the present disclosure.
Fig. 5 is a schematic flowchart of another wireless charging method according to an embodiment of the present disclosure.
Fig. 6 is a third schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 7 is a schematic structural diagram of a charging device according to an embodiment of the present application.
Fig. 8 is a fourth schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 9 is a fifth structural schematic diagram of an electronic device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features.
Wireless charging technology does not need the cable to accomplish the transmission of power, therefore, wireless charging technology is receiving more and more people's favor. The wireless charging technology generally connects an adapter with a wireless charging device (e.g., a wireless charging base), and wirelessly transmits output power of the adapter to a device to be charged through the wireless charging device (e.g., electromagnetic waves), so as to wirelessly charge the device to be charged.
According to different wireless charging principles, wireless charging methods are mainly classified into three methods, namely magnetic coupling (or electromagnetic induction), magnetic resonance and radio wave.
Currently, the mainstream wireless charging standards include QI standard, power physical association (PMA) standard, and wireless power association (A4 WP). The QI standard and the PMA standard both adopt a magnetic coupling mode for wireless charging. The A4WP standard uses magnetic resonance for wireless charging.
The embodiment of the application provides a wireless charging method, a storage medium, electronic equipment and a charging device. The details will be described below separately. The electronic device may be a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), VR glasses, or the like. Charging device can be devices such as wireless charging base, wireless treasured that charges.
Referring to fig. 1 and fig. 2, fig. 1 is a first structural schematic diagram of an electronic device according to an embodiment of the present disclosure, and fig. 2 is a second structural schematic diagram of the electronic device according to the embodiment of the present disclosure. The electronic device 100 may include a cover 11, a display 12, a control circuit 13, a battery 14, a housing 15, a front camera 161, a rear camera 162, and a fingerprint unlocking module 17. Note that the electronic apparatus 100 is not limited to the above.
Wherein the cover plate 11 is mounted to the display screen 12 to cover the display screen 12. The cover plate 11 may be a transparent glass cover plate so that the display screen 12 transmits light through the cover plate 11 for display. In some embodiments, the cover plate 11 may be a glass cover plate made of a material such as sapphire.
Wherein the display screen 12 is mounted in the housing 15. The display 12 is electrically connected to the control circuit 13 to form a display surface of the electronic device 100. The display 12 may have a regular shape, such as a rectangular parallelepiped, the top end and/or the bottom end of the electronic device 100 may form a non-display area, that is, the electronic device 100 forms a non-display area on the upper portion and/or the lower portion of the display 12, and the electronic device 100 may mount a front camera 161, a rear camera 162, and the like on the non-display area. It should be noted that the display 12 may also cover the entire display surface of the electronic device 100, that is, the full-screen display of the electronic device 100 is realized.
In some embodiments, the Display 12 may be a Liquid Crystal Display (LCD) or an Organic Light-Emitting Diode (OLED) Display.
The control circuit 13 is installed in the housing 15, the control circuit 13 may be a motherboard of the electronic device 100, and one, two or more functional components of a motor, a microphone, a speaker, an earphone interface, a universal serial bus interface, a front camera 161, a rear camera 162, a distance sensor, an ambient light sensor, a receiver, and a controller may be integrated on the control circuit 13. In some embodiments, the control circuit 13 may be screwed into the housing 15 by screws, or may be snap-fit into the housing 15. It should be noted that the way of fixing the control circuit 13 specifically in the housing 15 according to the embodiment of the present application is not limited to this, and other ways, such as a way of fixing by a snap and a screw together, are also possible.
Referring to fig. 3, fig. 3 is a schematic flowchart illustrating a wireless charging method according to an embodiment of the present disclosure. Specifically, the method is applied to an electronic device which comprises a battery, a first receiving coil and a second receiving coil which are arranged at intervals; the method can comprise the following steps:
and 101, acquiring the current temperature of the first receiving coil and the second receiving coil and the current electric quantity of the battery in real time.
A battery management chip can be arranged in the battery, and the battery chip can acquire the current electric quantity of the battery in real time. And the first receiving coil and the second receiving coil are provided with temperature detection devices, and the temperature detection devices can acquire the current temperatures of the first receiving coil and the second receiving coil in real time.
Wherein the current temperature may be a highest temperature in the first and second receiving coils. If the positions of the first receiving coil and the second receiving coil are close and the spaces where the first receiving coil and the second receiving coil are located are communicated, the temperatures of the first receiving coil and the second receiving coil are close. The heat energy of one receiving coil can be diffused to the position of the other receiving coil, so that the temperature of the two receiving coils is close to that of the other receiving coil.
The first receiving coil and the second receiving coil are arranged at intervals, and can be on the same plane and spaced at a distance. Of course, the first receiving coil and the second receiving coil may not be in the same plane, and the first receiving coil and the second receiving coil do not overlap in the thickness direction of the electronic device, that is, the projections of the first receiving coil and the second receiving coil on the plane where the display screen is located do not intersect. Meanwhile, because the area of the receiving coil is large, the positions of the first receiving coil and the second receiving coil are relatively close to each other, and the first receiving coil and the second receiving coil can diffuse mutually after heating, so that the temperatures of the first receiving coil and the second receiving coil are relatively close to each other.
And 102, when the current temperature is lower than a first preset temperature threshold and the current electric quantity is lower than a preset electric quantity threshold, controlling the first receiving coil and the second receiving coil to simultaneously receive electromagnetic energy, and converting the electromagnetic energy into electric energy to charge the battery.
When the temperature of the first receiving coil, the second receiving coil and the electronic equipment is over high, the receiving coil or other devices in the electronic equipment can be affected by the need of cooling treatment or charging for a short time. The preset electric quantity threshold value can be a higher proportion of the total quantity of the battery, such as 90 percent, 95 percent and the like, and when the preset electric quantity threshold value is exceeded, the electric quantity of the battery is nearly fully charged, and the quick charge can be quitted.
Therefore, when the current temperature is lower than the first preset temperature threshold and the current electric quantity is lower than the preset electric quantity threshold, the current temperature of the receiving coil is not high, the current electric quantity of the battery is not nearly full, the battery can be charged quickly, the charging efficiency is improved, and the charging time is shortened.
With two receiving coils, the current in the coil can be reduced to half of the original current and the resistive loss of a single coil can be reduced to 1/4 compared with the single coil under the condition of the same receiving power.
103, when the current temperature is greater than a first preset temperature threshold, or when the current electric quantity is greater than a preset electric quantity threshold, setting a plurality of charging time periods, wherein each charging time period comprises a first sub-charging time period and a second sub-charging time period.
When the current temperature is higher than the first preset temperature threshold, it indicates that the temperature of the current receiving coil is higher, and then the current charging is continuously maintained, so that the performance of the receiving coil or a device inside the electronic equipment may be irreversibly reduced due to the overhigh temperature, and the electronic equipment may be damaged and exploded more seriously.
When the current electric quantity is larger than the preset electric quantity threshold value, the electric quantity of the current battery is close to full charge, and the battery can meet the use of a user.
At this time, a plurality of charging periods are set, for example, each charging period may be 1 minute, 3 minutes, or 5 minutes, or the like. Wherein each charging time period comprises a first sub-charging time period and a second sub-charging time period respectively. Thus, the charging time is the first sub-charging period, the second sub-charging period, and so on.
And 104, controlling the first receiving coil to receive electromagnetic energy and controlling the second receiving coil to be in an idle state in the first sub-charging time period.
And 105, controlling the second receiving coil to receive electromagnetic energy and controlling the first receiving coil to be in an idle state in the second sub-charging time period.
The switching of the single coil is in a time division manner, i.e., the first receiving coil is used in the first sub-charging period T1 and the second receiving coil is used in the second sub-charging period T2. Therefore, the first receiving coil and the second receiving coil are used in different time respectively, when the first receiving coil is used, the second receiving coil does not work, and the second receiving coil can be naturally cooled; when the second receiving coil is used, the first receiving coil does not work, and the first receiving coil can be naturally cooled. This can achieve continuous charging at low temperatures.
Referring to fig. 4, fig. 4 is a schematic flow chart of a wireless charging method according to an embodiment of the present disclosure. Specifically, the method may comprise:
and 201, acquiring the current temperature of the first receiving coil and the second receiving coil and the current electric quantity of the battery in real time.
A battery management chip can be arranged in the battery, and the battery chip can acquire the current electric quantity of the battery in real time. And the first receiving coil and the second receiving coil are provided with temperature detection devices, and the temperature detection devices can acquire the current temperatures of the first receiving coil and the second receiving coil in real time.
202, the battery temperature of the battery is obtained.
The battery is also provided with a temperature detection device, and the temperature detection device can acquire the current temperature of the battery in real time. A temperature detection device may also be provided inside the battery.
And 203, judging whether the battery temperature is in the allowable charging temperature range.
An allowable charging temperature range is set in advance for the battery, and the allowable charging temperature range includes a minimum charge cut-off temperature and a first maximum charge cut-off temperature.
204, if the battery temperature is within the allowable charging temperature range, then go to step 206.
The allowable charging temperature range is not exceeded, which indicates that the battery can be charged, including rapid charging and ordinary charging.
And 205, if the battery temperature is not in the allowable charging temperature range, controlling the first receiving coil and the second receiving coil to be in an idle state.
If the temperature exceeds the allowable charging temperature range, the current temperature of the battery is too high, the battery cannot be charged any more, and the battery needs to be stopped from being charged, so that the battery is protected.
And 206, when the current temperature is lower than the first preset temperature threshold and the current electric quantity is lower than the preset electric quantity threshold, controlling the first receiving coil and the second receiving coil to simultaneously receive electromagnetic energy, and converting the electromagnetic energy into electric energy to charge the battery.
When the temperature of the first receiving coil, the second receiving coil and the electronic equipment is over high, the receiving coil or other devices in the electronic equipment can be affected by the need of cooling treatment or charging for a short time. The preset electric quantity threshold value can be a higher proportion of the total quantity of the battery, such as 90 percent, 95 percent and the like, and when the preset electric quantity threshold value is exceeded, the electric quantity of the battery is nearly fully charged, and the quick charge can be quitted.
Therefore, when the current temperature is lower than the first preset temperature threshold and the current electric quantity is lower than the preset electric quantity threshold, the current temperature of the receiving coil is not high, the current electric quantity of the battery is not nearly full, the battery can be charged quickly, the charging efficiency is improved, and the charging time is shortened.
With two receiving coils, the current in the coil can be reduced to half of the original current and the resistive loss of a single coil can be reduced to 1/4 compared with the single coil under the condition of the same receiving power.
207, when the current temperature is greater than the first preset temperature threshold, or when the current electric quantity is greater than the preset electric quantity threshold, setting a plurality of charging time periods, wherein each charging time period comprises a first sub-charging time period and a second sub-charging time period.
When the current temperature is higher than the first preset temperature threshold, it indicates that the temperature of the current receiving coil is higher, and then the current charging is continuously maintained, so that the performance of the receiving coil or a device inside the electronic equipment may be irreversibly reduced due to the overhigh temperature, and the electronic equipment may be damaged and exploded more seriously.
When the current electric quantity is larger than the preset electric quantity threshold value, the electric quantity of the current battery is close to full charge, and the battery can meet the use of a user.
At this time, a plurality of charging periods are set, for example, each charging period may be 1 minute, 3 minutes, or 5 minutes, or the like. Wherein each charging time period comprises a first sub-charging time period and a second sub-charging time period respectively. Thus, the charging time is the first sub-charging period, the second sub-charging period, and so on.
In some embodiments, this step may further include: acquiring a first coil temperature of a first receiving coil and a second coil temperature of a second receiving coil; when the first coil temperature is higher than the second coil temperature, setting the first sub-charging time period to be smaller than the second sub-charging time period; when the first coil temperature is less than the second coil temperature, the first sub-charging period is set to be greater than the second sub-charging period.
According to the temperatures of the two receiving coils, the working time of each receiving coil is controlled, the working time of the two receiving coils can be reasonably distributed, one receiving coil is not obviously higher than the other receiving coil, the integral temperature of the electronic equipment is further increased, the efficiency of the two receiving coils is close, and the battery charging is more stable.
And 208, controlling the first receiving coil to receive electromagnetic energy and controlling the second receiving coil to be in an idle state in the first sub-charging time period.
And 209, controlling the second receiving coil to receive the electromagnetic energy and controlling the first receiving coil to be in an idle state in the second sub-charging time period.
The switching of the single coil is in a time division manner, i.e., the first receiving coil is used in the first sub-charging period T1 and the second receiving coil is used in the second sub-charging period T2. Therefore, the first receiving coil and the second receiving coil are used in different time respectively, when the first receiving coil is used, the second receiving coil does not work, and the second receiving coil can be naturally cooled; when the second receiving coil is used, the first receiving coil does not work, and the first receiving coil can be naturally cooled. This can achieve continuous charging at low temperatures.
In some embodiments, each charging period further comprises a transition period, the transition period being set between the first sub-charging period and the second sub-charging period; and controlling the first receiving coil and the second receiving coil to receive electromagnetic energy in the transition time period.
And the transition time period is transited from the first sub-charging time period to the second sub-charging time period, so that the charging of the battery is not interrupted, and the continuity and the stability of the charging of the battery are maintained.
In other embodiments, a capacitor may be added to the input terminal of the battery, and the capacitor may increase the power to charge the battery when the first sub-charging period and the second sub-charging period are switched, so as to maintain the continuity and stability of the battery charging.
In some embodiments, when the current temperature is greater than a second preset temperature threshold and less than a first preset temperature threshold, sending control information to the charging device, where the control information is used to control the charging device to reduce the transmission power, and the second preset temperature threshold is less than the first preset temperature threshold.
In some cases, the receive coils may not be used in a time-sharing manner, but the receive power of both receive coils may be reduced. Specifically, the control information may be communicated with the charging device to control the charging device to reduce the transmission power. No changes need to be made at the electronic device side, but the charging device is changed. Two receiving coils can also be used, and under the condition of the same receiving power, the current in the coils can be reduced to half of the original current in comparison with a single coil, and the resistive loss of the single coil can be reduced to 1/4, so that continuous charging can be realized, and the temperature of the receiving coil is reduced.
Referring to fig. 5, fig. 5 is a schematic flowchart illustrating a wireless charging method according to an embodiment of the present disclosure. Specifically, the method is applied to a charging device, wherein the charging device charges a battery of the electronic equipment, and the charging device comprises a first transmitting coil and a second transmitting coil which are arranged at intervals; the method comprises the following steps:
301, obtaining the current temperature of the first receiving coil and the second receiving coil of the electronic device and the current electric quantity of the battery of the electronic device in real time.
Wherein the current temperature may be a highest temperature in the first and second receiving coils. If the positions of the first receiving coil and the second receiving coil are close and the spaces where the first receiving coil and the second receiving coil are located are communicated, the temperatures of the first receiving coil and the second receiving coil are close. The heat energy of one receiving coil can be diffused to the position of the other receiving coil, so that the temperature of the two receiving coils is close to that of the other receiving coil.
The charging device may be in communication with the electronic device. Specifically, wired communication can be performed through a USB interface, and wireless communication can also be performed through modes such as WIFI, Bluetooth and near field communication. Wireless communication may also be performed through the transmit coil and the receive coil.
The electronic equipment sends the current temperature of the first receiving coil and the second receiving coil and the current electric quantity of the battery of the electronic equipment to the charging device in real time. The charging device receives this information in real time.
In some embodiments, a battery temperature of a battery of an electronic device is obtained. It is determined whether the battery temperature is within the allowable charging temperature range. If the battery temperature is within the allowable charging temperature range, step 302 is skipped. And if the battery temperature is not in the allowable charging temperature range, controlling the first transmitting coil and the second transmitting coil to be in an idle state.
A temperature detection device is also arranged on the electronic equipment battery, and the temperature detection device can acquire the current temperature of the battery in real time. A temperature detection device may also be provided inside the battery. The electronic device sends the battery temperature to the charging device in real time. An allowable charging temperature range is set in advance for the battery, and the allowable charging temperature range includes a minimum charge cut-off temperature and a first maximum charge cut-off temperature. The allowable charging temperature range is not exceeded, which indicates that the battery can be charged, including rapid charging and ordinary charging. If the temperature exceeds the allowable charging temperature range, the current temperature of the battery is too high, the battery cannot be charged any more, and the first transmitting coil and the second transmitting coil need to be controlled to pause, namely, the battery is stopped from being charged, so that the battery is protected.
And 302, when the current temperature is lower than a first preset temperature threshold and the current electric quantity is lower than a preset electric quantity threshold, controlling the first transmitting coil and the second transmitting coil to transmit electromagnetic energy.
When the temperature of the first receiving coil, the second receiving coil and the electronic equipment is over high, the receiving coil or other devices in the electronic equipment can be affected by the need of cooling treatment or charging for a short time. The preset electric quantity threshold value can be a higher proportion of the total quantity of the battery, such as 90 percent, 95 percent and the like, and when the preset electric quantity threshold value is exceeded, the electric quantity of the battery is nearly fully charged, and the quick charge can be quitted.
Therefore, when the current temperature is lower than the first preset temperature threshold and the current electric quantity is lower than the preset electric quantity threshold, the current temperature of the receiving coil is not high, the current electric quantity of the battery is not nearly full, the battery can be charged quickly, the charging efficiency is improved, and the charging time is shortened.
The charging device uses two transmitting coils to transmit electromagnetic energy, and the electronic equipment correspondingly uses two receiving coils, under the condition of the same receiving power, the current in the coils can be reduced to half of the original current in comparison with a single coil, and the resistive loss of the single coil can be reduced to 1/4.
303, when the current temperature is greater than a first preset temperature threshold, or when the current electric quantity is greater than a preset electric quantity threshold, setting a plurality of charging time periods, wherein each charging time period comprises a first sub-charging time period and a second sub-charging time period.
When the current temperature is higher than the first preset temperature threshold, it indicates that the temperature of the current receiving coil is higher, and then the current charging is continuously maintained, so that the performance of the receiving coil or a device inside the electronic equipment may be irreversibly reduced due to the overhigh temperature, and the electronic equipment may be damaged and exploded more seriously.
When the current electric quantity is larger than the preset electric quantity threshold value, the electric quantity of the current battery is close to full charge, and the battery can meet the use of a user.
At this time, a plurality of charging periods are set, for example, each charging period may be 1 minute, 3 minutes, or 5 minutes, or the like. Wherein each charging time period comprises a first sub-charging time period and a second sub-charging time period respectively. Thus, the charging time is the first sub-charging period, the second sub-charging period, and so on.
In some embodiments, this step may further include: acquiring a first coil temperature of a first receiving coil and a second coil temperature of a second receiving coil; when the first coil temperature is higher than the second coil temperature, setting the first sub-charging time period to be smaller than the second sub-charging time period; when the first coil temperature is less than the second coil temperature, the first sub-charging period is set to be greater than the second sub-charging period.
The current temperature sent by the electronic equipment comprises the first coil temperature of the first receiving coil and the second coil temperature of the second receiving coil, and the working time of each transmitting coil is controlled according to the temperatures of the two receiving coils, namely the working time of each receiving coil is controlled, the working time of the two transmitting coils and the working time of the two receiving coils can be reasonably distributed, one receiving coil cannot be obviously higher than the other receiving coil, the integral temperature of the electronic equipment is further increased, the efficiency of the two receiving coils is close, and the battery charging is more stable.
In some embodiments, this step may further include: acquiring a third coil temperature of the first transmitting coil and a fourth coil temperature of the second transmitting coil; when the third coil temperature is higher than the fourth coil temperature, setting the first sub-charging time period to be smaller than the second sub-charging time period; when the third coil temperature is less than the fourth coil temperature, the first sub-charging period is set to be greater than the second sub-charging period.
According to the temperatures of the two transmitting coils, the working time of each transmitting coil is controlled, the working time of the two transmitting coils can be reasonably distributed, one transmitting coil cannot be obviously higher than the other transmitting coil, the overall temperature of the charging device is further increased, the efficiency of the two transmitting coils is close, and the battery charging is more stable.
And 304, controlling the first transmitting coil to transmit electromagnetic energy and controlling the second transmitting coil to be in an idle state in the first sub-charging time period.
And 305, controlling the second transmitting coil to transmit electromagnetic energy and controlling the first transmitting coil to be in an idle state in the second sub-charging time period.
The switching of the single coil is in a time division manner, i.e., the first receiving coil is used in the first sub-charging period T1 and the second receiving coil is used in the second sub-charging period T2. Therefore, the first transmitting coil and the second transmitting coil are used in different time respectively, when the first transmitting coil is used, the second transmitting coil does not work, and the second transmitting coil can be naturally cooled; when the second transmitting coil is used, the first transmitting coil does not work, and the first transmitting coil can be naturally cooled. This can achieve continuous charging at low temperatures.
Similarly, the first receiving coil and the second receiving coil are respectively used in different time, when the first receiving coil is used, the second receiving coil does not work, and the second receiving coil can naturally cool; when the second receiving coil is used, the first receiving coil does not work, and the first receiving coil can be naturally cooled. This can achieve continuous charging at low temperatures.
Referring to fig. 6, fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. The electronic device 400 comprises a first processor 401, a battery 402, and a first receiving coil 403 and a second receiving coil 404 arranged at intervals.
The first processor 401 is electrically connected with the first receiving coil 403, the second receiving coil 404 and the battery 402 respectively, and the first processor 401 obtains the current temperature of the first receiving coil 403 and the second receiving coil 404 and the current electric quantity of the battery 402 in real time;
wherein the current temperature may be a highest temperature in the first and second receiving coils. If the positions of the first receiving coil and the second receiving coil are close and the spaces where the first receiving coil and the second receiving coil are located are communicated, the temperatures of the first receiving coil and the second receiving coil are close. The heat energy of one receiving coil can be diffused to the position of the other receiving coil, so that the temperature of the two receiving coils is close to that of the other receiving coil.
When the current temperature is lower than a first preset temperature threshold and the current electric quantity is lower than a preset electric quantity threshold, the first processor 401 controls the first receiving coil 403 and the second receiving coil 404 to receive electromagnetic energy and convert the electromagnetic energy into electric energy to charge the battery 402;
when the current temperature is greater than a first preset temperature threshold value or when the current electric quantity is greater than a preset electric quantity threshold value, the first processor 401 sets a plurality of charging time periods, wherein each charging time period comprises a first sub-charging time period and a second sub-charging time period;
during the first sub-charging period, the first processor 401 controls the first receiving coil 403 to receive electromagnetic energy and controls the second receiving coil 404 to be in an idle state;
during the second sub-charging period, the first processor 401 controls the second receiving coil 404 to receive electromagnetic energy and controls the first receiving coil 403 to be in an idle state.
In some embodiments, the first processor 401 obtains a first coil temperature of the first receiving coil 403 and a second coil temperature of the second receiving coil 404; when the first coil temperature is greater than the second coil temperature, the first processor 401 sets the first sub-charging period to be smaller than the second sub-charging period; when the first coil temperature is less than the second coil temperature, the first processor 401 sets the first sub-charging period to be greater than the second sub-charging period.
In some embodiments, the first processor 401 is further configured to obtain a battery 402 temperature of the battery 402; determining whether the temperature of the battery 402 is within an allowable charging temperature range; if yes, when the current temperature is lower than a first preset temperature threshold and the current electric quantity is lower than a preset electric quantity threshold, controlling the first receiving coil 403 and the second receiving coil 404 to simultaneously receive electromagnetic energy and convert the electromagnetic energy into electric energy to charge the battery 402, wherein the first preset temperature threshold is within an allowable charging temperature range; if not, the first receiving coil 403 and the second receiving coil 404 are controlled to be in an idle state.
In some embodiments, the first processor 401 is further configured to obtain a first coil temperature of the first receiving coil 403 and a second coil temperature of the second receiving coil 404;
when the first coil temperature is higher than the second coil temperature, setting the first sub-charging time period to be smaller than the second sub-charging time period;
when the first coil temperature is less than the second coil temperature, the first sub-charging period is set to be greater than the second sub-charging period.
In some embodiments, each charging period further includes a transition period, the transition period being disposed between the first sub-charging period and the second sub-charging period. The first processor 401 is further configured to control the first receiving coil 403 and the second receiving coil 404 to receive electromagnetic energy during the transition period.
In some embodiments, the first processor 401 is further configured to send control information to the charging device 420 when the current temperature is greater than a second preset temperature threshold and less than the first preset temperature threshold, where the control information is used to control the charging device 420 to reduce the transmission power, and the second preset temperature threshold is less than the first preset temperature threshold.
Referring to fig. 7, fig. 7 is a schematic structural diagram of a charging device according to an embodiment of the present disclosure. The charging device 420 charges the battery of the electronic device, and the charging device 420 includes a second processor 421, and a first transmitting coil 422 and a second transmitting coil 423 which are arranged at intervals.
The second processor 421 obtains status information sent by the electronic device in real time, where the status information includes current temperatures of the first receiving coil and the second receiving coil of the electronic device and a current electric quantity of the battery 402 of the electronic device;
when the current temperature is lower than the first preset temperature threshold and the current power is lower than the preset power threshold, the second processor 421 controls the first transmitting coil 422 and the second transmitting coil 423 to transmit electromagnetic energy simultaneously;
when the current temperature is greater than the first preset temperature threshold, or when the current power amount is greater than the preset power amount threshold, the second processor 421 sets a plurality of charging time periods, wherein each charging time period includes a first sub-charging time period and a second sub-charging time period;
during the first sub-charging period, the second processor 421 controls the first transmitting coil 422 to transmit electromagnetic energy and controls the second transmitting coil 423 to be in an idle state;
during the second sub-charging period, the second processor 421 controls the second transmitting coil 423 to transmit electromagnetic energy and controls the first transmitting coil 422 to be in an idle state.
Referring to fig. 8, fig. 8 is a schematic diagram illustrating a fourth structure of an electronic device according to an embodiment of the present disclosure. The electronic device 500 comprises a processor 501 and a memory 502. The processor 501 is electrically connected to the memory 502.
The processor 500 is a control center of the electronic device 500, connects various parts of the whole electronic device using various interfaces and lines, performs various functions of the electronic device 500 by running or loading a computer program stored in the memory 502, and calls data stored in the memory 502, and processes the data, thereby performing overall monitoring of the electronic device 500.
The memory 502 may be used to store software programs and modules, and the processor 501 executes various functional applications and data processing by running the computer programs and modules stored in the memory 502. The memory 502 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, a computer program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data created according to use of the electronic device, and the like. Further, the memory 502 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 502 may also include a memory controller to provide the processor 501 with access to the memory 502.
In this embodiment, the processor 501 in the electronic device 500 loads instructions corresponding to one or more processes of the computer program into the memory 502, and the processor 501 runs the computer program stored in the memory 502, so as to implement various functions as follows:
acquiring the current temperature of the first receiving coil and the second receiving coil and the current electric quantity of the battery in real time;
when the current temperature is lower than a first preset temperature threshold and the current electric quantity is lower than a preset electric quantity threshold, controlling the first receiving coil and the second receiving coil to simultaneously receive electromagnetic energy and convert the electromagnetic energy into electric energy to charge the battery;
when the current temperature is greater than a first preset temperature threshold value or when the current electric quantity is greater than a preset electric quantity threshold value, setting a plurality of charging time periods, wherein each charging time period comprises a first sub-charging time period and a second sub-charging time period;
controlling the first receiving coil to receive electromagnetic energy and controlling the second receiving coil to be in an idle state in the first sub-charging time period;
and controlling the second receiving coil to receive the electromagnetic energy and controlling the first receiving coil to be in an idle state in the second sub-charging time period.
In some embodiments, when the current temperature is lower than a first preset temperature threshold and the current power is lower than a preset power threshold, the processor 501 may specifically perform the following steps when the first receiving coil and the second receiving coil are controlled to simultaneously receive electromagnetic energy and convert the electromagnetic energy into electric energy to charge the battery:
acquiring the battery temperature of the battery;
judging whether the temperature of the battery is within an allowable charging temperature range;
if so, controlling the first receiving coil and the second receiving coil to simultaneously receive electromagnetic energy and convert the electromagnetic energy into electric energy to charge the battery when the current temperature is lower than a first preset temperature threshold and the current electric quantity is lower than a preset electric quantity threshold, wherein the first preset temperature threshold is within an allowable charging temperature range;
and if not, controlling the first receiving coil and the second receiving coil to be in an idle state.
In some embodiments, after setting a plurality of charging periods, wherein each charging period includes a first sub-charging period and a second sub-charging period, the processor 501 may specifically perform the following steps:
acquiring a first coil temperature of a first receiving coil and a second coil temperature of a second receiving coil;
when the first coil temperature is higher than the second coil temperature, setting the first sub-charging time period to be smaller than the second sub-charging time period;
when the first coil temperature is less than the second coil temperature, the first sub-charging period is set to be greater than the second sub-charging period.
In some embodiments, each charging period further comprises a transition period, the transition period being disposed between the first sub-charging period and the second sub-charging period; the processor 501 may specifically perform the following steps:
and controlling the first receiving coil and the second receiving coil to simultaneously receive the electromagnetic energy in the transition time period.
In some embodiments, the processor 501 may specifically perform the following steps:
and when the current temperature is greater than a second preset temperature threshold and less than a first preset temperature threshold, sending control information to the charging device, wherein the control information is used for controlling the charging device to reduce the transmitting power, and the second preset temperature threshold is less than the first preset temperature threshold.
Referring to fig. 9, fig. 9 is a schematic view of a fifth structure of an electronic device according to an embodiment of the present disclosure. The electronic device 500 may further include: a display 503, radio frequency circuitry 504, audio circuitry 505, and a power supply 506. The display 503, the rf circuit 504, the audio circuit 505, and the power source 506 are electrically connected to the processor 501.
The display 503 may be used to display information entered by or provided to the user as well as various graphical user interfaces, which may be made up of graphics, text, icons, video, and any combination thereof. The display 503 may include a display panel, and in some embodiments, the display panel may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.
The rf circuit 504 may be used for transceiving rf signals to establish wireless communication with a network device or other electronic devices via wireless communication, and for transceiving signals with the network device or other electronic devices.
The audio circuit 505 may be used to provide an audio interface between a user and an electronic device through a speaker, microphone.
The power source 506 may be used to power various components of the electronic device 500. In some embodiments, power supply 506 may be logically coupled to processor 501 through a power management system, such that functions of managing charging, discharging, and power consumption are performed through the power management system.
Although not shown in fig. 9, the electronic device 500 may further include a camera, a bluetooth module, and the like, which are not described in detail herein.
An embodiment of the present application further provides a storage medium, where the storage medium stores a computer program, and when the computer program runs on a computer, the computer is caused to execute the processing method of the hover button in any of the above embodiments, such as: acquiring the current temperature of the first receiving coil and the second receiving coil and the current electric quantity of the battery in real time; when the current temperature is lower than a first preset temperature threshold and the current electric quantity is lower than a preset electric quantity threshold, controlling the first receiving coil and the second receiving coil to simultaneously receive electromagnetic energy and convert the electromagnetic energy into electric energy to charge the battery; when the current temperature is greater than a first preset temperature threshold value or when the current electric quantity is greater than a preset electric quantity threshold value, setting a plurality of charging time periods, wherein each charging time period comprises a first sub-charging time period and a second sub-charging time period; controlling the first receiving coil to receive electromagnetic energy and controlling the second receiving coil to be in an idle state in the first sub-charging time period; and controlling the second receiving coil to receive the electromagnetic energy and controlling the first receiving coil to be in an idle state in the second sub-charging time period.
In the embodiment of the present application, the storage medium may be a magnetic disk, an optical disk, a Read Only Memory (ROM), a Random Access Memory (RAM), or the like.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The wireless charging method, the storage medium, the electronic device, and the charging apparatus provided in the embodiments of the present application are described in detail above, and specific examples are applied herein to illustrate the principles and implementations of the present application, and the description of the above embodiments is only used to help understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (12)
1. A wireless charging method is applied to electronic equipment, and is characterized in that the electronic equipment comprises a battery, a first receiving coil and a second receiving coil which are arranged at intervals; the method comprises the following steps:
acquiring the current temperature of the first receiving coil and the second receiving coil and the current electric quantity of the battery in real time;
when the current temperature is lower than a first preset temperature threshold value and the current electric quantity is lower than a preset electric quantity threshold value, controlling the first receiving coil and the second receiving coil to simultaneously receive electromagnetic energy and convert the electromagnetic energy into electric energy to charge the battery;
when the current temperature is greater than a first preset temperature threshold value or when the current electric quantity is greater than a preset electric quantity threshold value, setting a plurality of charging time periods, wherein each charging time period comprises a first sub-charging time period and a second sub-charging time period;
controlling the first receiving coil to receive electromagnetic energy and controlling the second receiving coil to be in an idle state in a first sub-charging time period;
and controlling the second receiving coil to receive electromagnetic energy and controlling the first receiving coil to be in an idle state in a second sub-charging time period.
2. The wireless charging method according to claim 1, wherein the step of controlling the first receiving coil and the second receiving coil to receive electromagnetic energy and convert the electromagnetic energy into electric energy to charge the battery when the current temperature is lower than a first preset temperature threshold and the current power is lower than a preset power threshold comprises:
acquiring the battery temperature of the battery;
judging whether the battery temperature is within an allowable charging temperature range;
if yes, when the current temperature is lower than a first preset temperature threshold value and the current electric quantity is lower than a preset electric quantity threshold value, controlling the first receiving coil and the second receiving coil to receive electromagnetic energy and converting the electromagnetic energy into electric energy to charge the battery, wherein the first preset temperature threshold value is within the allowable charging temperature range;
and if not, controlling the first receiving coil and the second receiving coil to be in an idle state.
3. The wireless charging method according to claim 1, wherein the setting of a plurality of charging periods, wherein each of the charging periods comprises a first sub-charging period and a second sub-charging period, further comprises, after the step of:
acquiring a first coil temperature of the first receiving coil and a second coil temperature of the second receiving coil;
when the first coil temperature is higher than the second coil temperature, setting the first sub-charging time period to be smaller than the second sub-charging time period;
and when the first coil temperature is lower than the second coil temperature, setting the first sub-charging time period to be larger than the second sub-charging time period.
4. The wireless charging method according to claim 1, wherein each of the charging periods further includes a transition period, the transition period being set between the first sub-charging period and the second sub-charging period;
the method further comprises the following steps:
controlling the first receiving coil and the second receiving coil to receive electromagnetic energy during the transition period.
5. The wireless charging method of claim 1, further comprising:
and when the current temperature is greater than a second preset temperature threshold and less than a first preset temperature threshold, sending control information to the charging device, wherein the control information is used for controlling the charging device to reduce the transmitting power, and the second preset temperature threshold is less than the first preset temperature threshold.
6. A wireless charging method is applied to a charging device which charges a battery of an electronic device, and is characterized in that the charging device comprises a first transmitting coil and a second transmitting coil which are arranged at intervals; the method comprises the following steps:
acquiring the current temperature of a first receiving coil and a second receiving coil of the electronic equipment and the current electric quantity of a battery of the electronic equipment in real time;
when the current temperature is lower than a first preset temperature threshold value and the current electric quantity is lower than a preset electric quantity threshold value, controlling the first transmitting coil and the second transmitting coil to transmit electromagnetic energy;
when the current temperature is greater than a first preset temperature threshold value or when the current electric quantity is greater than a preset electric quantity threshold value, setting a plurality of charging time periods, wherein each charging time period comprises a first sub-charging time period and a second sub-charging time period;
controlling the first transmitting coil to transmit electromagnetic energy and controlling the second transmitting coil to be in an idle state in a first sub-charging time period;
and controlling the second transmitting coil to transmit electromagnetic energy and controlling the first transmitting coil to be in an idle state in a second sub-charging time period.
7. The wireless charging method according to claim 6, wherein when the current temperature is greater than a second preset temperature threshold and less than a first preset temperature threshold, the power of the signals transmitted by the first transmitting coil and the second transmitting coil is reduced, wherein the second preset temperature threshold is less than the first preset temperature threshold.
8. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the wireless charging method according to any one of claims 1 to 7.
9. An electronic device comprising a processor and a memory, the memory storing a computer program, wherein the processor is configured to perform the steps of the wireless charging method according to any one of claims 1 to 7 by invoking the computer program.
10. An electronic device is characterized by comprising a first processor, a battery, a first receiving coil and a second receiving coil which are arranged at intervals;
the first processor is electrically connected with the first receiving coil, the second receiving coil and the battery respectively, and the first processor acquires the current temperature of the first receiving coil and the second receiving coil and the current electric quantity of the battery in real time;
when the current temperature is lower than a first preset temperature threshold and the current electric quantity is lower than a preset electric quantity threshold, the first processor controls the first receiving coil and the second receiving coil to simultaneously receive electromagnetic energy and converts the electromagnetic energy into electric energy to charge the battery;
when the current temperature is greater than a first preset temperature threshold value or when the current electric quantity is greater than a preset electric quantity threshold value, the first processor sets a plurality of charging time periods, wherein each charging time period comprises a first sub-charging time period and a second sub-charging time period;
the first processor controls the first receiving coil to receive electromagnetic energy and controls the second receiving coil to be in an idle state in a first sub-charging time period;
the first processor controls the second receiving coil to receive electromagnetic energy and controls the first receiving coil to be in an idle state in a second sub-charging period.
11. The electronic device of claim 10, wherein the first processor obtains a first coil temperature of the first receive coil and a second coil temperature of the second receive coil;
when the first coil temperature is greater than a second coil temperature, the first processor sets the first sub-charging period to be less than the second sub-charging period;
when the first coil temperature is less than the second coil temperature, the first processor sets the first sub-charging period to be greater than the second sub-charging period.
12. A charging device for charging a battery of an electronic device is characterized by comprising a second processor, a first transmitting coil and a second transmitting coil which are arranged at intervals;
the second processor acquires state information sent by the electronic equipment in real time, wherein the state information comprises the current temperature of a first receiving coil and a second receiving coil of the electronic equipment and the current electric quantity of a battery of the electronic equipment;
when the current temperature is lower than a first preset temperature threshold value and the current electric quantity is lower than a preset electric quantity threshold value, the second processor controls the first transmitting coil and the second transmitting coil to simultaneously transmit electromagnetic energy;
when the current temperature is greater than a first preset temperature threshold value or when the current electric quantity is greater than a preset electric quantity threshold value, the second processor sets a plurality of charging time periods, wherein each charging time period comprises a first sub-charging time period and a second sub-charging time period;
the second processor controls the first transmitting coil to transmit electromagnetic energy and controls the second transmitting coil to be in an idle state in a first sub-charging time period;
the second processor controls the second transmitting coil to transmit electromagnetic energy and controls the first transmitting coil to be in an idle state during a second sub-charging period.
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| CN114665558A (en) * | 2022-04-07 | 2022-06-24 | 济宁市海豚科技有限公司 | Wireless charging method |
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