WO2022052755A1

WO2022052755A1 - Battery heating method, apparatus and device

Info

Publication number: WO2022052755A1
Application number: PCT/CN2021/113054
Authority: WO
Inventors: 陈博文; 欧欣; 马理猴; 谢正生
Original assignee: 华为技术有限公司
Priority date: 2020-09-09
Filing date: 2021-08-17
Publication date: 2022-03-17
Also published as: CN114243162B; CN114243162A

Abstract

The embodiments of the present application disclose a battery heating method and apparatus, and a device, relating to the technical field of wireless charging. The method comprises: a charging device receiving a first message sent by an electronic device; determining a first charging frequency according to the first message, wherein the difference between the first charging frequency and the resonant center frequency of a coil in the charging device is greater than the difference between a second charging frequency and the resonant center frequency of the coil in the charging device, and the second charging frequency is the frequency currently used by the charging device to charge the electronic device; adjusting the charging frequency used to charge the electronic device from the second charging frequency to the first charging frequency to heat a battery of the electronic device. The battery heating method and apparatus, and the device provided by the embodiments of the present invention allow for the increase of the temperature of the battery of the electronic device, so that battery activity is improved, and thus charging efficiency is increased.

Description

Battery heating method, device and equipment

This application claims the priority of the Chinese patent application with the application number 202010940866.6 and the application name "Battery Heating Method, Apparatus and Equipment" filed with the China Patent Office on September 09, 2020, the entire contents of which are incorporated into this application by reference .

technical field

The present application relates to the technical field of wireless charging, and in particular, to a battery heating method, device and device.

Background technique

With the continuous development of mobile communication technology, wireless charging has been applied to various fields of daily life, and because of its safety, convenience and durability, it is very popular among people.

Usually, when the ambient temperature is low, the activity of the battery in the electronic device will become poor, resulting in slow charging speed or even a short charge. At present, in order to improve the activity of the battery in the electronic device and increase the charging speed, when the temperature of the battery in the electronic device is lower than the preset value, the controller of the electronic device can control to reduce the rotation speed of the fan or turn off the fan, so that the air volume generated by the fan is reduced. Small or no air volume is generated, so as to reduce the heat dissipation to the battery of the electronic device, so as to achieve the purpose of heating the electronic device.

However, the heating speed of the above heating method is slow, so that the battery activity is not high, resulting in low charging efficiency.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a battery heating method, device, and device, which are applied in the field of wireless charging technology to solve the problems of slow charging speed and low charging efficiency caused by low battery activity in a low temperature environment.

In a first aspect, an embodiment of the present application provides a battery heating method, which is applied to a charging device, including: receiving a first message sent by an electronic device; and determining a first charging frequency according to the first message, wherein the first charging frequency is the same as the charging frequency. The difference between the coil resonance center frequencies in the device is greater than the difference between the second charging frequency and the coil resonance center frequency in the charging device, where the second charging frequency is the frequency currently used by the charging device to charge the electronic device; The charging frequency used to charge the electronic device is adjusted from the second charging frequency to the first charging frequency to heat the battery of the electronic device.

In the above solution, in a low temperature environment, when the charging device receives the first message sent by the electronic device for requesting to heat the battery, it adjusts the second charging frequency currently used for charging to the first charging frequency, thereby generate heat energy.

The above-mentioned coil resonance center frequency is an ideal charging frequency, and at this frequency, the charging efficiency of the charging device can be maximized, and the charging demand of the electronic device can be met with the greatest efficiency. In practical applications, the charging frequency of the charging device may deviate from the coil resonance center frequency, and the second charging frequency closest to the coil resonance center frequency can be used to charge the electronic device, and the charging device can still be charged with high efficiency at this frequency. However, when the charging frequency continues to deviate from the resonant center frequency of the coil, the charging efficiency will decrease, and power loss will occur between the coil of the charging device and the coil of the electronic device, but this part of the power loss will be converted into heat energy, which can be used to The battery of the electronic device is heated. This method increases the heating speed of the battery, improves the activity of the battery, and can ensure that the charging device performs heating and charging work on the battery of the electronic device in a low temperature environment.

In a possible implementation manner, determining the first charging frequency according to the first message includes: adjusting the charging frequency from the second charging frequency to the third charging frequency according to the first message; determining the charging frequency according to the third charging frequency The power loss value corresponding to the device; it is determined whether the power loss value is within the preset range; if the power loss value is within the preset range, the third charging frequency is determined as the first charging frequency.

In a possible implementation manner, the method further includes: if the power loss value is not within the preset range, continuing to adjust the third charging frequency until the power loss value corresponding to the adjusted third charging frequency is within the preset range , the adjusted third charging frequency is determined as the first charging frequency. In this way, by adjusting the third charging frequency so that the power loss corresponding to the adjusted third charging frequency is within the preset range, it can be ensured that no redundant power loss is generated, thereby ensuring the charging efficiency of the charging device.

In this solution, when adjusting the charging frequency, it is necessary to ensure that the power loss value corresponding to the adjusted charging frequency is within the preset range, so as to ensure that this part of the power loss value is converted into heat energy to heat the electronic equipment. , and can avoid the phenomenon of excessive power loss value, which leads to the decrease of charging efficiency.

In a possible implementation manner, determining the first charging frequency according to the first message includes: determining a charging frequency range corresponding to the charging device according to the first message; and determining the first charging frequency within the charging frequency range.

In this solution, it can be ensured that the first charging frequency is within the charging frequency range, thereby ensuring that the charging device can charge the electronic device normally.

In this solution, different wireless charging standards and different charging coils will have different charging frequency ranges. Exemplarily, the wireless power consortium (WPC) coil specifies a charging frequency range of 125-145 kHz, so in practice In the application, different charging frequency ranges can be selected according to different needs.

In a possible implementation manner, determining the power loss value corresponding to the charging device according to the third charging frequency includes: determining the transmitting power of the charging device according to the third charging frequency; acquiring the receiving power of the electronic device; Receive power, and determine the power loss value corresponding to the charging device.

In this solution, the power loss value corresponding to the charging device can be determined by calculating the difference between the transmit power and the receive power.

In a possible implementation manner, the method further includes: receiving a second message sent by the electronic device, where the second message is used to indicate that the temperature of the electronic device is greater than a preset value; and performing a preset operation according to the second message to stop the The battery of the electronic device is heated; wherein, the preset operation includes one of the following: using the second charging frequency to charge the electronic device; or, reducing the transmission power of the charging device; or, stopping the charging of the electronic device.

In this solution, when the temperature of the electronic device is greater than the preset value, the heating operation of the battery can be stopped to prevent the outside of the electronic device from becoming hot and affecting the user experience.

In a second aspect, an embodiment of the present application provides a battery heating method, which is applied to an electronic device, including: acquiring the temperature of the electronic device; if the temperature is less than a first preset value, sending a first message to the charging device, the first message is used to instruct the charging device to determine a first charging frequency, and adjust the charging frequency used for charging the electronic device from the second charging frequency to the first charging frequency, so as to heat the battery of the electronic device, wherein , the difference between the first charging frequency and the coil resonance center frequency in the charging device is greater than the difference between the second charging frequency and the coil resonance center frequency in the charging device, and the second charging frequency is The frequency at which the charging device is currently charging the electronic device.

In this solution, when the working environment temperature is 0-10°C, the battery of the electronic device will limit the current due to the low temperature, resulting in slow charging. When the working environment temperature is -10-0°C, the battery of the electronic device will The charging will be interrupted due to low temperature. Therefore, in practical applications, the first preset value may be 10° C. for example.

In a possible implementation manner, acquiring the temperature of the electronic device includes: acquiring the temperature of the electronic device when it is detected that the electronic device is charged by the charging device.

In this solution, when it is detected that the electronic device is in a charging state, in order to avoid the phenomenon that the charging speed is slow due to low temperature, the temperature of the electronic device itself can be obtained at this time.

In a possible implementation manner, acquiring the temperature of the electronic device includes: acquiring the power of the electronic device; if the power of the electronic device is lower than a second preset value, acquiring the temperature of the electronic device.

In this solution, since the temperature of the electronic device is obtained when the power of the electronic device is lower than the second preset value, the temperature of the electronic device can be known in time when the power is low, so as to determine whether it is necessary to turn on heating and charging mode to avoid slow charging due to low temperature.

In a possible implementation manner, acquiring the temperature of the electronic device includes: acquiring the current charging speed of the electronic device; and acquiring the temperature of the electronic device if the current charging speed of the electronic device is less than a third preset value.

In this solution, when the charging speed of the electronic device in the first time period is lower than the third preset value, the temperature of the electronic device can be obtained, so that it can be determined whether the heating and charging mode needs to be turned on, so as to charge the battery of the electronic device. Heating to avoid the phenomenon that the charging speed is slow due to low temperature and affects the user's use.

In a possible implementation manner, the method further includes: sending the received power of the electronic device to the charging device, where the received power is used to instruct the charging device to determine the power consumption value corresponding to the charging device according to the transmit power and the received power.

In this solution, since the power loss value corresponding to the charging device can be determined according to the transmitting power of the charging device and the receiving power of the electronic device, the third charging frequency can be adjusted in time according to the power loss value, so that the adjusted third charging frequency can be adjusted in time. The power loss value corresponding to the frequency is in the preset range, so as to avoid the power loss value exceeding the preset range, which will cause the failure to charge, damage the electronic equipment, and affect the user's use.

In a possible implementation manner, the method further includes: if the temperature of the electronic device is greater than a fourth preset value, sending a second message to the charging device, where the second message is used to instruct the charging device to perform a preset operation to stop charging the electronic device. The battery of the device is heated; wherein, the preset operation includes one of the following:

Use the second charging frequency to charge the electronic device; or, reduce the transmit power of the charging device; or, stop charging the electronic device.

Exemplarily, the fourth preset value may be 20° C., because the normal working range of the battery is 0˜60° C. At this temperature, the battery of the electronic device can work normally and this temperature will not cause the outside of the electronic device to become hot. .

In this solution, the electronic device can monitor the temperature of the electronic device in time and avoid damage to the battery performance due to the high temperature of the battery after heating.

In a third aspect, an embodiment of the present application provides a battery heating device, including: a receiving unit for receiving a first message sent by an electronic device; a processing unit for determining a first charging frequency according to the first message, the first The difference between the charging frequency and the resonant center frequency of the coil in the device is greater than the difference between the second charging frequency and the resonant center frequency of the coil in the device, where the second charging frequency is currently used by the device to charge the electronic device The processing unit is further configured to adjust the charging frequency used for charging the electronic device from the second charging frequency to the first charging frequency, so as to heat the battery of the electronic device.

In a possible implementation manner, the processing unit is specifically configured to: adjust the charging frequency from the second charging frequency to the third charging frequency according to the first message; determine the power corresponding to the device according to the third charging frequency loss value; determine whether the power loss value is within a preset range; if the power loss value is within the preset range, determine the third charging frequency as the first charging frequency.

In a possible implementation manner, the processing unit is specifically configured to: if the power loss value is not within the preset range, continue to adjust the third charging frequency until the adjusted third charging frequency corresponds to If the power loss value is within the preset range, the adjusted third charging frequency is determined as the first charging frequency.

In a possible implementation manner, the processing unit is specifically configured to: determine the transmit power of the device according to the third charging frequency; acquire the receive power of the electronic device; and determine the charge based on the transmit power and the receive power The power loss value corresponding to the device.

In a possible implementation manner, the receiving unit is further configured to receive a second message sent by the electronic device, where the second message is used to indicate that the temperature of the electronic device is greater than a fourth preset value; the processing unit is further configured to is used to perform a preset operation according to the second message to stop heating the battery of the electronic device; wherein, the preset operation includes one of the following: using the second charging frequency to charge the electronic device; or, reducing The transmit power of the device; or, stop charging the electronic device.

In a fourth aspect, an embodiment of the present application provides a battery heating device, including: a processing unit for acquiring the temperature of the device; and a sending unit for sending a first message, the first message is used to instruct the charging device to determine the first charging frequency, and adjust the charging frequency used to charge the device from the second charging frequency to the first charging frequency, so as to heat the battery of the device , wherein the difference between the first charging frequency and the resonant center frequency of the whole coil in the charging device is greater than the difference between the second charging frequency and the resonant center frequency of the coil in the charging device, and the second charging frequency is the The frequency at which the charging device is currently charging the electronic device.

In a possible implementation manner, the processing unit is specifically configured to acquire the temperature of the device when it is detected that the device is charged by the charging device.

In a possible implementation manner, the processing unit is specifically configured to: acquire the power of the device; and acquire the temperature of the device if the power of the device is lower than a second preset value.

In a possible implementation manner, the processing unit is specifically configured to: obtain the charging speed of the device within the first time period; if the charging speed of the device within the first time period is less than a third preset value, obtain the charging speed of the device within the first time period device temperature.

In a fifth aspect, an embodiment of the present application provides a battery heating system, including the device according to the third aspect and the device according to the fourth aspect.

In a sixth aspect, an embodiment of the present application provides a battery heating device, the device includes a processor and a memory, and a computer program is stored in the memory, and the processor executes the computer program stored in the memory, so that the device performs as described in the first step. The method of any one of the one aspect to the second aspect.

In a seventh aspect, an embodiment of the present application provides a battery heating device, including: a processor and an interface circuit; the interface circuit is coupled to the processor; the processor is used for calling the code instructions stored in the memory to execute the The method of any one of the first to second aspects.

The device mentioned in the third aspect of the present application may be a charging device or a chip in the charging device, and the charging device or the chip has the function of implementing the battery heating method in the above aspects or any possible designs thereof. The functions may be implemented by hardware, or by executing corresponding software by hardware, or partially implemented by hardware and partially implemented by software. The hardware or software includes one or more units corresponding to the above-mentioned functions.

The charging device includes: a processing unit and a transceiver unit, the processing unit may be a processor, the transceiver unit may be a transceiver, the transceiver includes a radio frequency circuit, optionally, the charging device further includes a storage unit, for example, the storage unit may be a memory. When the charging device includes a storage unit, the storage unit is used to store computer-executed instructions, the processing unit is connected to the storage unit, and the processing unit executes the computer-executed instructions stored in the storage unit, so that the charging device performs the above aspects or any possible designs thereof. battery heating method.

The chip includes: a processing unit and a transceiver unit. The processing unit may be a processor, and the transceiver unit may be an input/output interface, a pin or a circuit on the chip. The processing unit can execute the computer-executable instructions stored in the memory unit to cause the chip to perform the battery heating method in each of the above aspects or any possible designs thereof. Optionally, the storage unit may be an in-chip storage unit (for example, a register, a cache, etc.), and the storage unit may also be a memory unit in the modulator (for example, a read-only memory (ROM) located outside the chip. )) or other types of static storage devices that can store static information and instructions (eg, random access memory (RAM)), etc.

The above-mentioned processor may be a central processing unit (CPU), a microprocessor or an application specific integrated circuit (ASIC), or one or more of them used to control the above aspects or Its any possible design of an integrated circuit for the program execution of the battery heating method.

The device mentioned in the fourth aspect of the present application may be an electronic device or a chip in the electronic device, and the electronic device or the chip has the function of implementing the battery heating method in the above aspects or any possible designs thereof. The functions can be implemented by hardware, or by executing corresponding software by hardware. The hardware or software includes one or more units corresponding to the above-mentioned functions.

The electronic device includes a processing unit and a transceiver unit, the processing unit may be a processor, the transceiver unit may be a transceiver, the transceiver includes a radio frequency circuit, optionally, the electronic device further includes a storage unit, for example, the storage unit may be a memory. When the electronic device includes a storage unit, the storage unit is used to store computer-executed instructions, the processing unit is connected to the storage unit, and the processing unit executes the computer-executed instructions stored in the storage unit, so that the electronic device performs the above aspects or any possible designs thereof. battery heating method.

In an eighth aspect, an embodiment of the present application provides a battery heating system, including the charging device as described in the third aspect and the electronic device as described in the fourth aspect.

In a ninth aspect, an embodiment of the present application provides a readable storage medium for storing an instruction, when the instruction is executed, the method according to any one of the first aspect to the second aspect is implemented.

In a tenth aspect, the embodiments of the present application provide a computer program product including instructions, which, when run on a computer or a processor, enables the computer or processor to execute any one of the first to second aspects of the embodiments of the present application Provided battery heating method.

Embodiments of the present application provide a battery heating method, device, and device. The electronic device obtains its own temperature, and when the temperature is lower than a first preset value, sends a first message to the charging device, and the charging device determines the first message according to the first message. With a charging frequency, the charging frequency used for charging the electronic device is adjusted from the second charging frequency to the first charging frequency. Wherein, the difference between the first charging frequency and the coil resonance center frequency in the charging device is greater than the difference between the second charging frequency and the coil resonance center frequency in the charging device, and the second charging frequency is the current charge of the charging device to the electronic device. The frequency used for charging. Power loss is generated by shifting the charging frequency away from the resonant center frequency of the coil in the charging device, which is then converted into heat to heat the battery of the electronic device. Compared with the prior art, this method can rapidly increase the temperature of the battery in the electronic device, so that the battery activity becomes better, thereby improving the charging efficiency.

Description of drawings

FIG. 1 is an exemplary application scenario diagram provided by an embodiment of the present application;

FIG. 2 is a schematic structural diagram of an exemplary electronic device provided by an embodiment of the present application;

FIG. 3 is a schematic structural diagram of an exemplary charging circuit provided by an embodiment of the present application;

FIG. 4 is a signaling diagram of an exemplary battery heating method provided by an embodiment of the present application;

FIG. 5 is a schematic structural diagram of an exemplary battery heating device provided by an embodiment of the present application;

FIG. 6 is a schematic structural diagram of an exemplary battery heating device provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of an exemplary charging device provided by an embodiment of the present application;

FIG. 8 is a schematic structural diagram of another exemplary electronic device provided by an embodiment of the present application.

detailed description

In order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish the same or similar items with basically the same function and effect. For example, the first charging frequency and the second charging frequency are only used to distinguish different charging frequencies, and the sequence of the charging frequencies is not limited. Those skilled in the art can understand that the words "first", "second" and the like do not limit the quantity and execution order, and the words "first", "second" and the like are not necessarily different.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations or illustrations. Any embodiments or designs described in the embodiments of the present application as "exemplary" or "such as" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present the related concepts in a specific manner.

In this application, "at least one" means one or more, and "plurality" means two or more. "And/or", which describes the association relationship of the associated objects, indicates that there can be three kinds of relationships, for example, A and/or B, which can indicate: the existence of A alone, the existence of A and B at the same time, and the existence of B alone, where A, B can be singular or plural. The character "/" generally indicates that the associated objects are an "or" relationship. "At least one item(s) below" or similar expressions thereof refer to any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one item (a) of a, b, or c may represent: a, b, c, ab, ac, bc, or abc, where a, b, and c may be single or multiple .

FIG. 1 is an exemplary application scenario diagram provided by an embodiment of the present application. As shown in FIG. 1 , the scenario includes an electronic device 101 and a charging device 102 , wherein the charging device 102 charges the electronic device 101 wirelessly. Specifically, wireless charging can be performed using the principle of electromagnetic wave induction. There is a coil in each of the charging device and the electronic device. The coil in the charging device is called the primary coil, and the coil in the electronic device is called the secondary coil. The primary coil is connected to a wired power supply to generate an electromagnetic signal, and the secondary coil induces the electromagnetic signal to generate a current, so as to achieve the purpose of charging the electronic device with the charging device.

In some embodiments, the electronic device 101 may be a mobile terminal device, such as a mobile phone (or "cellular" phone, mobile phone), a computer, and a data card. For example, there may be portable, pocket-sized, hand-held, computer built-in or vehicle mounted mobile devices that exchange language and/or data with the radio access network. For example, personal communication service (PCS) phone, cordless phone, personal digital assistant (PDA), tablet computer (Pad). The electronic device 101 may also be a user equipment (user equipment, UE), a mobile terminal (mobile terminal, MT), and the like.

Exemplarily, FIG. 2 is a schematic structural diagram of an exemplary electronic device provided by an embodiment of the present application. As shown in FIG. 2 , the electronic device 101 may include a processor 110 , an external memory interface 120 , an internal memory 121 , a universal serial bus (USB) interface 130 , a charge management module 140 , a power management module 141 , and a battery 142 , Antenna 1, Antenna 2, Mobile Communication Module 150, Wireless Communication Module 160, Audio Module 170, Speaker 170A, Receiver 170B, Microphone 170C, Headphone Interface 170D, Sensor 180, Key 190, Motor 191, Indicator 192, Camera 193, Display screen 194, and subscriber identification module (subscriber identification module, SIM) card interface 195 and so on.

It can be understood that the structure illustrated in this embodiment does not constitute a specific limitation on the electronic device 101 . In other embodiments of the present application, the electronic device 101 may include more or less components than shown, or some components may be combined, or some components may be separated, or different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The processor 110 may include one or more processing units, for example, the processor 110 may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor (image signal processor, ISP), controller, video codec, digital signal processor (DSP), baseband processor, display process unit (DPU), and/or neural network processor (neural-network processing unit, NPU), etc. Wherein, different processing units may be independent devices, or may be integrated in one or more processors. In some embodiments, the electronic device 101 may also include one or more processors 110 .

The controller may be the nerve center and command center of the electronic device 101 . The controller can generate an operation control signal according to the instruction operation code and timing signal, and complete the control of fetching and executing instructions.

A memory may also be provided in the processor 110 for storing instructions and data. In some embodiments, the memory in processor 110 is cache memory. This memory may hold instructions or data that have just been used or recycled by the processor 110 . If the processor 110 needs to use the instruction or data again, it can be called directly from the memory. This avoids repeated accesses and reduces the latency of the processor 110, thereby increasing the efficiency of the electronic device 101 system.

In some embodiments, the processor 110 may include one or more interfaces. The interface may include an integrated circuit (inter-integrated circuit, I2C) interface, an integrated circuit built-in audio (inter-integrated circuit sound, I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, a universal asynchronous transceiver (universal asynchronous transmitter) receiver/transmitter, UART) interface, mobile industry processor interface (MIPI), general-purpose input/output (GPIO) interface, subscriber identity module (SIM) interface, and / or universal serial bus (universal serial bus, USB) interface, etc. Among them, the USB interface 130 is an interface that conforms to the USB standard specification, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, and the like. The USB interface 130 can be used to connect a charger to charge the electronic device 101, and can also be used to transmit data between the electronic device 101 and peripheral devices. It can also be used to connect headphones to play audio through the headphones.

It can be understood that the interface connection relationship between the modules illustrated in the embodiment of the present invention is only a schematic illustration, and does not constitute a structural limitation of the electronic device 101 . In other embodiments of the present application, the electronic device 101 may also adopt different interface connection manners in the foregoing embodiments, or a combination of multiple interface connection manners.

The charging management module 140 is used to receive charging input from the charger. The charger may be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 140 may receive charging input from the wired charger through the USB interface 130 . In some wireless charging embodiments, the charging management module 140 may receive wireless charging input through the wireless charging coil of the electronic device 101. While the charging management module 140 charges the battery 142 , it can also supply power to the electronic device 101 through the power management module 141 .

The power management module 141 is used for connecting the battery 142 , the charging management module 140 and the processor 110 . The power management module 141 receives input from the battery 142 and/or the charging management module 140, and supplies power to the processor 110, the internal memory 121, the display screen 194, the camera 193, and the wireless communication module 160. The power management module 141 can also be used to monitor parameters such as battery capacity, battery cycle times, battery health status (leakage, impedance). In some other embodiments, the power management module 141 may also be provided in the processor 110 . In other embodiments, the power management module 141 and the charging management module 140 may also be provided in the same device.

The wireless communication function of the electronic device 101 may be implemented by the antenna 1, the antenna 2, the mobile communication module 150, the wireless communication module 160, the modulation and demodulation processor, the baseband processor, and the like. Antenna 1 and Antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in electronic device 101 may be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example, the antenna 1 can be multiplexed as a diversity antenna of the wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.

The mobile communication module 150 can provide wireless communication solutions including 2G/3G/4G/5G etc. applied on the electronic device 101 . The mobile communication module 150 may include at least one filter, switch, power amplifier, low noise amplifier, and the like. The mobile communication module 150 can receive electromagnetic waves from the antenna 1, filter and amplify the received electromagnetic waves, and transmit them to the modulation and demodulation processor for demodulation. The mobile communication module 150 can also amplify the signal modulated by the modulation and demodulation processor, and then turn it into an electromagnetic wave for radiation through the antenna 1 . In some embodiments, at least part of the functional modules of the mobile communication module 150 may be provided in the processor 110 . In some embodiments, at least part of the functional modules of the mobile communication module 150 may be provided in the same device as at least part of the modules of the processor 110 .

The modem processor may include a modulator and a demodulator. Wherein, the modulator is used to modulate the low frequency baseband signal to be sent into a medium and high frequency signal. The demodulator is used to demodulate the received electromagnetic wave signal into a low frequency baseband signal. Then the demodulator transmits the demodulated low-frequency baseband signal to the baseband processor for processing. The low frequency baseband signal is processed by the baseband processor and passed to the application processor. The application processor outputs sound signals through audio devices (not limited to the speaker 170A, the receiver 170B, etc.), or displays images or videos through the display screen 194 . In some embodiments, the modem processor may be a stand-alone device. In other embodiments, the modem processor may be independent of the processor 110, and may be provided in the same device as the mobile communication module 150 or other functional modules.

The wireless communication module 160 can provide applications on the electronic device 101 including wireless local area networks (WLAN), Bluetooth, global navigation satellite system (GNSS), frequency modulation (FM), NFC, Infrared technology (infrared, IR) and other wireless communication solutions. The wireless communication module 160 may be one or more devices integrating at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2 , frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 110 . The wireless communication module 160 can also receive the signal to be sent from the processor 110 , perform frequency modulation on it, amplify it, and convert it into electromagnetic waves for radiation through the antenna 2 .

In some embodiments, the antenna 1 of the electronic device 101 is coupled with the mobile communication module 150, and the antenna 2 is coupled with the wireless communication module 160, so that the electronic device 101 can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include GSM, GPRS, CDMA, WCDMA, TD-SCDMA, LTE, GNSS, WLAN, NFC, FM, and/or IR technology, and the like. The above-mentioned GNSS can include global positioning system (global positioning system, GPS), global navigation satellite system (global navigation satellite system, GLONASS), Beidou satellite navigation system (beidou navigation satellite system, BDS), quasi-zenith satellite system (quasi- zenith satellite system, QZSS) and/or satellite based augmentation systems (SBAS).

The electronic device 101 can implement a display function through a GPU, a display screen 194, an application processor, and the like. The GPU is a microprocessor for image processing, and is connected to the display screen 194 and the application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. Processor 110 may include one or more GPUs that execute instructions to generate or change display information.

Display screen 194 is used to display images, videos, and the like. Display screen 194 includes a display panel. The display panel can be a liquid crystal display (LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (active-matrix organic light). emitting diode, AMOLED), flexible light-emitting diode (flex light-emitting diode, FLED), Miniled, MicroLed, Micro-oLed, quantum dot light-emitting diode (quantum dot light emitting diodes, QLED) and so on. In some embodiments, the electronic device 101 may include one or N display screens 194 , where N is a positive integer greater than one.

The electronic device 101 can realize the shooting function through an ISP, one or more cameras 193, a video codec, a GPU, one or more display screens 194, an application processor, and the like.

The NPU is a neural-network (NN) computing processor. By drawing on the structure of biological neural networks, such as the transfer mode between neurons in the human brain, it can quickly process the input information, and can continuously learn by itself. Applications such as intelligent cognition of the electronic device 101 can be implemented through the NPU, such as image recognition, face recognition, speech recognition, text understanding, and the like.

The DPU is also called the Display Sub-System (DSS). The DPU is used to adjust the color of the display screen 194. The DPU can adjust the color of the display screen through a 3D look up table (3D LUT). . The DPU can also perform processing such as scaling, noise reduction, contrast enhancement, backlight brightness management, hdr processing, and display parameter Gamma adjustment.

The external memory interface 120 can be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the electronic device 101 . The external memory card communicates with the processor 110 through the external memory interface 120 to realize the data storage function. For example, data files such as music, photos, videos, etc. are saved in an external memory card.

Internal memory 121 may be used to store one or more computer programs including instructions. The processor 110 may execute the above-mentioned instructions stored in the internal memory 121, thereby causing the electronic device 101 to execute various functional applications, data processing, and the like. The internal memory 121 may include a storage program area and a storage data area. Wherein, the stored program area may store the operating system; the stored program area may also store one or more application programs (such as gallery, contacts, etc.) and the like. The storage data area may store data (such as photos, contacts, etc.) created during the use of the electronic device 101 and the like. In addition, the internal memory 121 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, universal flash storage (UFS), and the like. In some embodiments, the processor 110 may cause the electronic device 101 to perform various functional applications and data processing by executing instructions stored in the internal memory 121 and/or instructions stored in memory provided in the processor 110 .

The electronic device 101 may implement audio functions through an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, and an application processor. Such as music playback, recording, etc. The audio module 170 is used for converting digital audio information into analog audio signal output, and also for converting analog audio input into digital audio signal. Audio module 170 may also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be provided in the processor 110 , or some functional modules of the audio module 170 may be provided in the processor 110 . Speaker 170A, also referred to as "speaker", is used to convert audio electrical signals into sound signals. The electronic device 101 can listen to music through the speaker 170A, or listen to a hands-free call. The receiver 170B, also referred to as "earpiece", is used to convert audio electrical signals into sound signals. When the electronic device 101 answers a call or a voice message, the voice can be answered by placing the receiver 170B close to the human ear. The microphone 170C, also called "microphone" or "microphone", is used to convert sound signals into electrical signals. When making a call or sending a voice message, the user can make a sound by approaching the microphone 170C through a human mouth, and input the sound signal into the microphone 170C. The electronic device 101 may be provided with at least one microphone 170C. In other embodiments, the electronic device 101 may be provided with two microphones 170C, which can implement a noise reduction function in addition to collecting sound signals. In other embodiments, the electronic device 101 may further be provided with three, four or more microphones 170C to collect sound signals, reduce noise, identify sound sources, and implement directional recording functions. The earphone jack 170D is used to connect wired earphones. The earphone port 170D may be the USB port 130, or may be a 3.5mm open mobile terminal platform (OMTP) standard port, or may be a cellular telecommunications industry association of the USA (CTIA) Standard interface.

The sensors 180 may include a pressure sensor 180A, a gyro sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity light sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, and an ambient light sensor 180L , Bone conduction sensor 180M and so on.

The pressure sensor 180A is used to sense pressure signals, and can convert the pressure signals into electrical signals. In some embodiments, the pressure sensor 180A may be provided on the display screen 194 . There are many types of pressure sensors 180A, such as resistive pressure sensors, inductive pressure sensors, capacitive pressure sensors, and the like. The capacitive pressure sensor may be comprised of at least two parallel plates of conductive material. When a force is applied to the pressure sensor 180A, the capacitance between the electrodes changes. The electronic device 101 determines the intensity of the pressure according to the change in capacitance. When a touch operation acts on the display screen 194, the electronic device 101 detects the intensity of the touch operation according to the pressure sensor 180A. The electronic device 101 may also calculate the touched position according to the detection signal of the pressure sensor 180A. In some embodiments, touch operations acting on the same touch position but with different touch operation intensities may correspond to different operation instructions. For example, when a touch operation whose intensity is less than the first pressure threshold acts on the short message application icon, the instruction for viewing the short message is executed. When a touch operation with a touch operation intensity greater than or equal to the first pressure threshold acts on the short message application icon, the instruction to create a new short message is executed.

The gyro sensor 180B can be used to determine the motion attitude of the electronic device 101 . In some embodiments, the angular velocity of electronic device 101 about three axes (ie, x, y, and z axes) may be determined by gyro sensor 180B. The gyro sensor 180B can be used for image stabilization. Exemplarily, when the shutter is pressed, the gyro sensor 180B detects the shaking angle of the electronic device 101, calculates the distance to be compensated by the lens module according to the angle, and allows the lens to offset the shaking of the electronic device 101 through reverse motion to achieve anti-shake. The gyro sensor 180B can also be used for navigation, somatosensory game scenes, and the like.

The acceleration sensor 180E can detect the magnitude of the acceleration of the electronic device 101 in various directions (generally three axes). The magnitude and direction of gravity can be detected when the electronic device 101 is stationary. It can also be used to identify the posture of electronic devices, and can be used in applications such as horizontal and vertical screen switching, pedometers, etc.

Distance sensor 180F for measuring distance. The electronic device 101 can measure distance by infrared or laser. In some embodiments, when shooting a scene, the electronic device 101 can use the distance sensor 180F to measure the distance to achieve fast focusing.

Proximity light sensor 180G may include, for example, light emitting diodes (LEDs) and light detectors, such as photodiodes. The light emitting diodes may be infrared light emitting diodes. The electronic device 101 emits infrared light to the outside through light emitting diodes. Electronic device 101 uses photodiodes to detect infrared reflected light from nearby objects. When sufficient reflected light is detected, it can be determined that there is an object near the electronic device 101. When insufficient reflected light is detected, the electronic device 101 may determine that there is no object near the electronic device 101 . The electronic device 101 can use the proximity light sensor 180G to detect that the user holds the electronic device 101 close to the ear to talk, so as to automatically turn off the screen to save power. Proximity light sensor 180G can also be used in holster mode, pocket mode automatically unlocks and locks the screen.

The ambient light sensor 180L is used to sense ambient light brightness. The electronic device 101 can adaptively adjust the brightness of the display screen 194 according to the perceived ambient light brightness. The ambient light sensor 180L can also be used to automatically adjust the white balance when taking pictures. The ambient light sensor 180L can also cooperate with the proximity light sensor 180G to detect whether the electronic device 101 is in the pocket, so as to prevent accidental touch.

The fingerprint sensor 180H (also called a fingerprint reader) is used to collect fingerprints. The electronic device 101 can use the collected fingerprint characteristics to unlock the fingerprint, access the application lock, take a picture with the fingerprint, answer the incoming call with the fingerprint, and the like. In addition, for other descriptions of fingerprint sensors, please refer to the international patent application PCT/CN2017/082773 entitled "Method and Electronic Device for Processing Notifications", the entire contents of which are incorporated herein by reference.

The touch sensor 180K may also be referred to as a touch panel or a touch sensitive surface. The touch sensor 180K may be disposed on the display screen 194, and the touch sensor 180K and the display screen 194 form a touch screen, also called a touch screen. The touch sensor 180K is used to detect a touch operation on or near it. The touch sensor can pass the detected touch operation to the application processor to determine the type of touch event. Visual output related to touch operations may be provided through display screen 194 . In other embodiments, the touch sensor 180K may also be disposed on the surface of the electronic device 101 , which is different from the position where the display screen 194 is located.

The bone conduction sensor 180M can acquire vibration signals. In some embodiments, the bone conduction sensor 180M can acquire the vibration signal of the vibrating bone mass of the human voice. The bone conduction sensor 180M can also contact the pulse of the human body and receive the blood pressure beating signal. In some embodiments, the bone conduction sensor 180M can also be disposed in the earphone, combined with the bone conduction earphone. The audio module 170 can analyze the voice signal based on the vibration signal of the vocal vibration bone block obtained by the bone conduction sensor 180M, so as to realize the voice function. The application processor can analyze the heart rate information based on the blood pressure beat signal obtained by the bone conduction sensor 180M, and realize the function of heart rate detection.

The keys 190 include a power-on key, a volume key, and the like. The key 190 may be a mechanical key or a touch key. The electronic device 101 can receive key input and generate key signal input related to user settings and function control of the electronic device 101 .

The SIM card interface 195 is used to connect a SIM card. The SIM card can be contacted and separated from the electronic device 101 by inserting into the SIM card interface 195 or pulling out from the SIM card interface 195 . The electronic device 101 may support 1 or N SIM card interfaces, where N is a positive integer greater than 1. The SIM card interface 195 can support Nano SIM card, Micro SIM card, SIM card and so on. Multiple cards can be inserted into the same SIM card interface 195 at the same time. The types of the plurality of cards may be the same or different. The SIM card interface 195 can also be compatible with different types of SIM cards. The SIM card interface 195 is also compatible with external memory cards. The electronic device 101 interacts with the network through the SIM card to realize functions such as call and data communication. In some embodiments, the electronic device 101 employs an eSIM, ie: an embedded SIM card. The eSIM card can be embedded in the electronic device 101 and cannot be separated from the electronic device 101 .

Exemplarily, FIG. 3 is a schematic structural diagram of an exemplary charging circuit provided by an embodiment of the present application. As shown in FIG. 3 , in this embodiment, the charging circuit structure may include a transmitter integrated circuit (IC) and a receiver IC, and the transmitter IC transmits power to the receiver IC to achieve the purpose of wireless charging.

In a possible implementation manner, the transmitter IC is inside the charging device and is used to adjust the charging resonance frequency of the primary coil. The transmitter IC may include: a microcontroller unit (MCU), a power supply module, and a voltage detection circuit , Current detection circuit, rectifier circuit, resonance circuit, decoding circuit and voltage regulator circuit.

Further, the MCU can output modulation signals to the rectifier circuit and the voltage regulator circuit, the voltage regulator circuit can be used to output the voltage regulation signal, the rectifier circuit can be used to output the AC signal, and the resonant circuit can be used to output the AC signal to the primary coil, so that the primary The coil sends current to the secondary coil. In addition, the MCU is connected to the fan and a negative temperature coefficient (NTC). When the temperature of the charging device increases and/or decreases to a preset threshold, the MCU controls the rotational speed of the fan and/or the temperature information collected by the NTC. switch. The power supply module can be used to supply power to the MCU, the voltage detection circuit and the current detection circuit are connected to the MCU and the rectifier circuit, the voltage detection circuit can be used to detect the voltage information of the primary coil, and the current detection circuit can be used to detect the current information of the primary coil.

In a possible implementation manner, the receiver IC is located inside the electronic device, and is used to control the secondary coil of the electronic device to receive the current emitted by the primary coil. The receiver IC may include: an MCU, a rectifier circuit, and a voltage regulator circuit. The functions of the MCU, the rectifying circuit and the voltage regulating circuit are the same as above, and will not be repeated here.

Usually, the length of standby time and the speed of charging speed of electronic devices depend to a large extent on the activity of the battery, and the activity of the battery is related to the working environment temperature of the battery, and the ideal working environment temperature is 15 ℃ to 40 ℃. When the working environment temperature of the battery is low, the chemical reaction of the battery will be abnormal, and the battery activity will become poor, resulting in a slow charging speed or even interruption of charging. Therefore, the battery needs to be heated to improve the wireless charging performance. charging efficiency.

At present, electronic devices can improve the charging efficiency of wireless charging by reducing the rotational speed of the fan or turning off the fan. When the electronic device is charging, the battery temperature can be detected in real time or periodically, and the detected battery temperature can be sent to the charging device, and the charging device can adjust the rotation speed of the fan or turn off the fan according to the battery temperature.

Generally, the air volume generated by the fan is proportional to the speed of the fan, that is, the higher the speed of the fan, the larger the air volume generated, the lower the speed, the smaller the air volume generated. When the temperature of the battery of the electronic device is low, the controller can reduce the speed of the fan to generate less air volume, or turn off the fan to no longer generate air volume, thereby reducing the heat dissipation of the battery of the electronic device, so as to achieve the heating of the battery of the electronic device. The purpose is to improve the charging efficiency of wireless charging.

However, this solution achieves the purpose of heating the battery of the electronic device by reducing the heat dissipation of the battery of the electronic device and slowing down the temperature drop of the battery of the electronic device. This method of heating the battery is slow in heating, so that the battery activity is not high, resulting in charging. less efficient.

Based on the above problems, embodiments of the present application provide a battery heating method, device, and device. The electronic device obtains its own temperature, and when the temperature is lower than a first preset value, sends a first message to the charging device, and the charging device according to the first message, determine the first charging frequency, and adjust the charging frequency used to charge the electronic device from the second charging frequency to the first charging frequency. Wherein, the difference between the first charging frequency and the coil resonance center frequency in the charging device is greater than the difference between the second charging frequency and the coil resonance center frequency in the charging device, and the second charging frequency is the current charge of the charging device to the electronic device. The frequency used for charging.

The above-mentioned coil resonance center frequency is an ideal charging frequency, and at this frequency, the charging efficiency of the charging device can be maximized, and the charging demand of the electronic device can be met with the greatest efficiency. In practical applications, the charging frequency of the charging device may deviate from the coil resonance center frequency, and the second charging frequency closest to the coil resonance center frequency can be used to charge the electronic device, and the charging device can still be charged with high efficiency at this frequency. However, when the charging frequency continues to deviate from the resonant center frequency of the coil, the charging efficiency will decrease, and power loss will occur between the coil of the charging device and the coil of the electronic device, but this part of the power loss will be converted into heat energy, which can be used to The battery of the electronic device is heated. This method increases the heating speed of the battery, improves the activity of the battery, and can ensure that the charging device performs heating and charging work on the battery of the electronic device in a low temperature environment. The specific implementation manner will be described in detail in the subsequent embodiments, which will not be repeated here.

The technical solutions of the present application will be described in detail below with reference to the accompanying drawings through specific embodiments. It should be noted that the following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

FIG. 4 is a signaling diagram of an exemplary battery heating method provided by an embodiment of the present application. As shown in FIG. 4 , in this embodiment, the battery heating method may include the following steps:

Step 401: The electronic device acquires its own temperature.

In this embodiment of the present application, the temperature of the electronic device itself may be acquired through a temperature sensor such as an NTC, a thermocouple, and a resistance thermometer.

In a possible implementation manner, before acquiring the temperature of the electronic device, the charging device and the electronic device need to be authenticated to determine whether the charging device can charge the electronic device. After the authentication is successful, and when it is detected that the electronic device is charged by the charging device, the temperature of the electronic device is obtained.

Exemplarily, the authentication of the charging device and the electronic device is divided into two stages. The first stage is the ping stage. In this stage, the primary coil of the charging device sends a ping signal to the secondary coil of the electronic device. The ping signal may contain Signal strength packets and terminated transmission packets. The signal strength data packet is used to indicate the degree of coupling between the primary coil and the secondary coil, and the transmission termination data packet is used to instruct the charging device to stop transmitting power to the electronic device. The second stage is the identification and configuration stage, in which the secondary coil of the electronic device feeds back an identification data packet and a configuration data packet to the charging device according to the received ping signal. Wherein, the identification data package is used for the electronic device to provide identification information, such as a product serial number, to the charging device. The configuration data packet is used by the electronic device to provide parameter configuration information to the charging device, for example, the maximum power that the rectifier circuit needs to output. After the primary coil in the charging device receives the identification and configuration information fed back by the secondary coil in the electronic device, it will adjust the corresponding parameters of the primary coil, for example, adjust the power parameter and adjust the frequency parameter. After the parameter adjustment is completed, the authentication can be ended, and the power transmission stage is entered, that is, the charging of the electronic device is started.

It should be understood that the electronic device may acquire its own temperature in real time, or may acquire its own temperature periodically. Of course, in order to reduce the power consumption of the electronic device, it is also possible to obtain the temperature of the electronic device itself when the preset condition is satisfied.

In a possible implementation manner, the temperature of the electronic device itself may be acquired when it is detected that the electronic device is charged by the charging device.

Specifically, when it is detected that the electronic device is in a charging state, in order to avoid the phenomenon that the charging speed is slow due to low temperature, the temperature of the electronic device itself can be obtained at this time.

In another possible implementation manner, the power of the electronic device may be acquired, and when it is determined that the power of the electronic device is lower than the second preset value, the temperature of the electronic device is acquired.

Specifically, when it is determined that the power of the electronic device is lower than the second preset value, it means that the current electronic device is low in power. At this time, the electronic device is about to be charged. Therefore, the temperature of the electronic device itself can be obtained to determine whether It is necessary to turn on the heating charging mode for charging to improve the activity of the battery of the electronic device.

In this method, since the temperature of the electronic device is obtained when the power of the electronic device is lower than the second preset value, the temperature of the electronic device can be known in time when the power is low, so as to determine whether it is necessary to turn on heating and charging mode to avoid slow charging due to low temperature.

In yet another possible implementation, the charging speed of the electronic device within the first time period may be obtained, and when it is determined that the charging speed of the electronic device within the first time period is less than the third preset value, obtaining the electronic device temperature.

Specifically, before acquiring the temperature of the electronic device itself, it may be determined whether the charging speed of the electronic device within the first time period is lower than the third preset value. Exemplarily, when the charging speed of the electronic device is lower than the third preset value within the first duration, it means that the charging efficiency of the current electronic device is low, and it is possible that the electronic device is in a low temperature environment during the first duration, so that The battery activity of the electronic device becomes poor, resulting in a slow charging speed. At this time, the temperature of the electronic device itself can be obtained through the temperature sensor.

In this method, when the charging speed of the electronic device in the first time period is lower than the third preset value, the temperature of the electronic device can be obtained, so as to determine whether the heating and charging mode needs to be turned on, so as to charge the battery of the electronic device. Heating to avoid the phenomenon that the charging speed is slow due to low temperature and affects the user's use.

In another possible implementation, before acquiring the temperature of the electronic device itself, it is first necessary to determine whether the location information of the electronic device has changed. If it is determined that the location information of the electronic device has changed, the temperature of the battery in the electronic device is acquired. .

Wherein, the location information can be acquired by a location sensor. Exemplarily, when the location information of the electronic device changes, the ambient temperature of the environment where the electronic device is located may also change, so it is necessary to obtain the temperature of the electronic device through a temperature sensor.

In this method, when the position information of the electronic device changes, the temperature of the electronic device itself can be obtained, so that it can be judged whether the heating and charging mode needs to be turned on to heat the battery of the electronic device, so as to avoid the slow charging speed caused by the low temperature The phenomenon.

In another possible implementation manner, before acquiring the temperature of the electronic device itself, it is necessary to first determine the screen state of the electronic device, and when the screen of the electronic device is in a screen-off state, the temperature of the electronic device itself is acquired.

Exemplarily, the screen state includes a screen-on state and a screen-off state. When the screen state of the electronic device is bright, it means that the user is operating the electronic device. At this time, the increase of the processor load will cause the temperature of the electronic device to increase. Therefore, the battery of the electronic device can not be heated at this time. , so there is no need to obtain the temperature of the electronic device itself. When the screen state of the electronic device is in the off-screen state, it means that the user does not operate the electronic device. At this time, the load of the processor is small, and the battery of the electronic device does not heat up significantly. If the ambient temperature is too low at this time, the battery cannot be charged or the charging speed is slow, so the temperature of the electronic device itself can be obtained when the electronic device is in a screen-off state.

It should be noted that, the temperature of the electronic device itself may be acquired when any one of the above conditions is satisfied, or the temperature of the electronic device itself may be acquired when at least two of the above conditions are satisfied. For example, when it is detected that the electronic device is charged by the charging device, and the charging speed of the electronic device within the first time period is less than the third preset value, the temperature of the electronic device itself is obtained, and the like.

Step 402: If the temperature is lower than the first preset value, the electronic device sends a first message to the charging device.

In the embodiment of the present application, exemplarily, when the working environment temperature is 0-10° C., the battery of the electronic device will limit the magnitude of the current due to the low temperature, resulting in slow charging. When the working environment temperature is -10 ~ 0 ℃, the battery of electronic equipment will be interrupted due to low temperature. Therefore, in a possible implementation manner, the first preset value may be 10°C.

Specifically, after acquiring the temperature of the electronic device itself, it is necessary to determine whether the temperature is lower than the first preset value. Exemplarily, when the temperature is lower than the first preset value, it may be understood that the current electronic device is in a low temperature environment, and the heating and charging mode needs to be turned on. At this time, the electronic device will send a first message to the charging device, where the first message is used to instruct the charging device to determine the first charging frequency, and adjust the charging frequency used to charge the electronic device from the second charging frequency to the first charging frequency frequency to heat the battery of the electronic device.

In a possible implementation manner, the electronic device sends received power to the charging device, where the received power is used to instruct the charging device to determine a power loss value corresponding to the charging device according to the transmit power and the received power. Since the power loss value corresponding to the charging device can be determined according to the transmitting power of the charging device and the receiving power of the electronic device, the third charging frequency can be adjusted in time according to the power loss value, so that the power loss corresponding to the adjusted third charging frequency The value is in the preset range, so as to avoid the power loss value exceeding the preset range, which will lead to inability to charge, damage the electronic equipment, and affect the user's use.

Step 403: The charging device determines the first charging frequency according to the first message.

Wherein, the difference between the first charging frequency and the coil resonance center frequency in the charging device is greater than the difference between the second charging frequency and the coil resonance center frequency in the charging device, and the second charging frequency is the charging device currently charging the electronic device the frequency used. The coil resonance center frequency is the charging frequency that maximizes the charging efficiency.

Specifically, there may be a deviation between the second charging frequency currently used by the charging device to charge the electronic device and the coil resonance center frequency, the deviation being the first difference, and the first charging frequency determined by the charging device and the coil resonance The center frequency also has a deviation, and the deviation is a second difference, wherein the second difference is greater than the first difference. For example, the coil resonance center frequency is 135kHz, the second charging frequency is 136kHz, and the determined first charging frequency is 138kHz. At this time, the first difference is 1kHz and the second difference is 3kHz, which means that the second difference is greater than The first difference condition. When the second difference is greater than the first difference, the power loss value of the charging device will increase when charging, and this part of the power loss value will be converted into heat energy. Therefore, when the electronic device is charged with the first charging frequency, The battery of the electronic device can be heated.

In addition, the second charging frequency may also be the resonance center frequency of the coil in the charging device. That is, the charging device currently uses the coil resonance center frequency to charge the electronic device, and at this time, there is no difference between the second charging frequency and the coil resonance center frequency. Since the electronic device uses the coil resonance center frequency to charge the electronic device, the charging efficiency is high.

Exemplarily, the charging device determines the first charging frequency according to the first message, which may be, according to the first message, determining a charging frequency range corresponding to the charging device, and then determining the first charging frequency within the charging frequency range.

Specifically, in order to ensure the stable charging of the electronic device by the charging device and the normal operation of the charging device and the electronic device, the charging device needs to determine the first charging frequency within its corresponding charging frequency range, and adjust the charging frequency according to the first charging frequency. Electronic devices are charged. In addition, the charging device includes coils, and for different coils, the corresponding charging frequency ranges are different. Exemplarily, the charging frequency corresponding to the WPC coil ranges from 125 kHz to 145 kHz. Therefore, the charging device can determine the first charging frequency within the range of 125 kHz to 145 kHz.

In the embodiment of the present application, the charging device determines the first charging frequency according to the first message, or may adjust the charging frequency from the second charging frequency to the third charging frequency according to the first message, and then according to the third charging frequency, A power loss value corresponding to the charging device is determined, and whether the power loss value is within a preset range is determined, and if the power loss value is within the preset range, the third charging frequency is determined as the first charging frequency.

If the power loss value is not within the preset range, continue to adjust the third charging frequency until the power loss value corresponding to the adjusted third charging frequency is within the preset range, then the adjusted third charging frequency can be determined is the first charging frequency.

It should be noted that the third charging frequency is only a transition frequency in the process of determining the first charging frequency, and the third charging frequency may be adjusted according to the corresponding power loss value to determine the final first charging frequency.

Exemplarily, in a specific adjustment process, the second charging frequency may be gradually adjusted to the first charging frequency in a manner of deviating from mkHz each time, where m is any positive number. In addition, every time the second charging frequency deviates once, the power loss value corresponding to the third charging frequency after the deviation will be calculated. If the power loss value is within the preset range, the third charging frequency obtained after the deviation can be determined. is the first charging frequency. If the power loss value is not within the preset range, it means that the power loss value is large at this time, and it is necessary to continue to adjust the obtained third charging frequency until the power loss value corresponding to the adjusted third charging frequency is within the preset range. Within the range, the adjusted third charging frequency may be determined as the first charging frequency.

It can be understood that when the deviation is performed, the third charging frequency obtained after the deviation may be greater than the second charging frequency, or may be smaller than the second charging frequency, and of course, it can also be adjusted at intervals, as obtained during the first deviation. The third charging frequency is greater than the second charging frequency, and the third charging frequency obtained during the second deviation is less than the second charging frequency . . .

For example, if the value of m is 1 and the second charging frequency is 135kHz, the charging frequency will first deviate to 136kHz, and the corresponding power loss value at 136kHz will be calculated. If the power loss value is within the preset range, the 136kHz is determined as the first charging frequency. If the power loss value is not within the preset range, continue to adjust the charging frequency to 137kHz, calculate the power loss value corresponding to 137kHz, and repeat the above process until it is determined that the power loss value is within the preset range. charging frequency.

For another example, if the value of m is 1 and the second charging frequency is 135 kHz, the charging frequency will first deviate to 134 kHz, and the corresponding power loss value at 134 kHz will be calculated. If the power loss value is within the preset range, you can 134 kHz is determined as the first charging frequency. If the power loss value is not within the preset range, continue to adjust the charging frequency to 133kHz, calculate the power loss value corresponding to 133kHz, and repeat the above process until it is determined that the power loss value is within the preset range. charging frequency.

For another example, if the value of m is 1 and the second charging frequency is 135 kHz, the charging frequency will first deviate to 136 kHz, and the corresponding power loss value at 136 kHz will be calculated. If the power loss value is within the preset range, you can 136 kHz was determined as the first charging frequency. If the power loss value is not within the preset range, continue to adjust the charging frequency to 134kHz, calculate the power loss value corresponding to 134kHz, and repeat the above process until it is determined that the power loss value is within the preset range. charging frequency.

In addition, when shifting a plurality of times, the frequency value of each shift may be the same or different. For example, it can be offset by 1kHz each time, or by 1kHz on the first offset, by 2kHz on the second offset, and so on.

Exemplarily, when adjusting the second charging frequency, it may also be adjusted to the third charging frequency at one time. For example, if the second charging frequency is 135 kHz and the third charging frequency is 138 kHz, the charging frequency is directly biased to 138 kHz during the deviation process, and the third charging frequency is determined as the first charging frequency. Wherein, the above-mentioned third charging frequency may be predetermined according to experience.

Further, the above-mentioned preset range can be set according to experience or actual situation, for example, it can be 5W-10W.

In this embodiment, when adjusting the charging frequency, it is necessary to ensure that the power loss value corresponding to the adjusted charging frequency is within the preset range, so as to ensure that this part of the power loss value is converted into heat energy, so that the electronic equipment can be converted into heat energy. Heating can also avoid the phenomenon of excessive power loss, resulting in a decrease in charging efficiency.

In a possible implementation manner, when the charging device determines the corresponding power loss value according to the third charging frequency, the transmitting power of the charging device may be determined according to the third charging frequency, and the receiving power of the electronic device is obtained, and then according to the third charging frequency Transmit power and receive power to determine the power loss value corresponding to the charging device.

Specifically, after acquiring the transmit power and the receive power, the charging device determines the difference between the transmit power and the receive power as the power loss value. After the electronic device determines the received power according to the third charging frequency, it will send the received power of the electronic device to the charging device.

For example, when the third charging frequency is 138kHz, the transmit power of the corresponding charging device is 40W, and the receiving power of the electronic device is 30W, then the power loss value is 10W, which is within the preset range of power loss of 5-10W. The third charging frequency corresponding to the power loss may be determined as the first charging frequency.

In this embodiment, the charging device can determine the power loss value corresponding to the charging device according to the acquired transmit power and received power, so that the accuracy of the determined power loss value can be high.

In a possible implementation manner, the IC of the charging device can adjust the size of the transmit power according to the third charging frequency, and when the charging device receives the first message, the charging device can appropriately increase the transmit power within a preset range to increase the Large power loss value, so that more power loss value can be converted into heat energy to accelerate the heating of the battery of the electronic device, thereby increasing the heating speed of the battery, thereby improving the charging efficiency of the electronic device at low temperature.

Step 404: The charging device adjusts the charging frequency used to charge the electronic device from the second charging frequency to the first charging frequency, so as to heat the battery of the electronic device.

In this step, because the second charging frequency is the charging frequency when the charging device is in the normal charging mode, the charging device generates less power loss at this time. If the battery of the electronic device needs to be heated to reach the normal working temperature range of the battery, the charging device needs to generate more heat, and this heat can be converted from the power loss according to the principle of energy conservation. It is thus possible to deviate the charging frequency from the second charging frequency and adjust it to the first charging frequency. In this way, after the charging frequency of the charging device is adjusted from the second charging frequency to the first charging frequency, part of the power loss will occur, and this part of the power loss will be converted into heat, which can then heat the battery of the electronic device.

In a possible implementation manner, in order to monitor the temperature of the electronic device in time and avoid damage to the battery performance due to the high temperature of the battery after heating, during the process of heating the battery of the electronic device by the charging device in the above manner, the electronic device will Real-time or periodic own temperature. If the acquired temperature information is greater than the fourth preset value, the electronic device sends a second message to the charging device, and the charging device performs a preset operation according to the second message to stop heating the battery of the electronic device. The preset operation may include any one of the following: using the second charging frequency to charge the electronic device, reducing the transmit power of the charging device, or stopping charging the electronic device.

Specifically, after the charging device adjusts the adopted charging frequency from the second charging frequency to the first charging frequency and heats the battery of the electronic device, the temperature of the electronic device itself will increase. During the heating process, the electronic device will obtain the temperature information in real time or periodically through the temperature sensor. When the temperature is greater than the fourth preset value, the electronic device will send a second message to the charging device to stop the charging device from monitoring the electronic device. the battery is heated.

Exemplarily, the fourth preset value may be 20°C, because the ideal operating temperature range of the battery is 15°C to 40°C, at which the battery of the electronic device can work normally and this temperature will not cause external damage to the electronic device. hot.

Further, after receiving the second message, the charging device will perform a preset operation to stop heating the battery of the electronic device, thereby preventing the battery temperature from being too high and causing the electronic device to become hot and affecting the user experience.

In a possible implementation manner, the charging device may restore the charging frequency from the first charging frequency to the second charging frequency, and continue to charge the electronic device using the second charging frequency.

Exemplarily, in a specific recovery process, the first charging frequency may be gradually adjusted to the second charging frequency in a manner of recovering mkHz each time, where m is any positive number. During the step-by-step recovery process, the frequency value of each recovery can be the same or different. For example, 1 kHz can be restored every time, or 1 kHz can be restored during the first restoration, 2 kHz can be restored during the second restoration, and so on, until the second charging frequency is restored, and the second charging frequency is determined after the restoration is completed. The charging frequency for the current electronic device.

Exemplarily, in a specific recovery process, the first charging frequency may also be adjusted at one time to recover to the second charging frequency. For example, if the first charging frequency is 138kHz and the second charging frequency is 135kHz, the charging frequency is directly restored to 135kHz during the recovery process, and the second charging frequency is determined as the current charging frequency of the electronic device after the recovery.

In this way, when the charging device continues to use the second charging frequency for charging, the power loss value is small and the converted heat energy is small, so that the heating and charging of the battery of the electronic device will be stopped, thereby preventing the battery temperature of the electronic device from being too high. damage battery performance. In addition, since the charging device returns to the normal charging mode to charge the electronic device, and the temperature of the battery in the electronic device is relatively high at this time, the electric energy can be efficiently received, so that the charging efficiency is high.

In another possible implementation manner, the charging device can reduce the power consumption value by reducing the transmit power. In this way, the charging device reduces the heat energy generated, thereby slowing the temperature rise of the battery in the electronic device, so as to avoid excessive temperature damage to the battery performance.

In another possible implementation manner, the charging device can stop heating the battery of the electronic device by turning off the power and stopping charging the electronic device, so that the battery performance can be prevented from being damaged by excessive temperature and power can be saved.

FIG. 5 is a schematic structural diagram of an exemplary battery heating device 10 provided by an embodiment of the present application. Referring to FIG. 5 , the battery heating device 10 may include:

The receiving unit 11 is used to receive the first message sent by the electronic device; the processing unit 12 is used to determine the first charging frequency according to the first message, the difference between the first charging frequency and the resonance center frequency of the coil in the device The value is greater than the difference between the second charging frequency and the resonant center frequency of the coil in the device, where the second charging frequency is the frequency currently used by the device to charge the electronic device; the processing unit 12 is also used to The charging frequency used for charging the electronic device is adjusted from the second charging frequency to the first charging frequency to heat the battery of the electronic device.

In a possible implementation manner, the processing unit 12 is specifically configured to: adjust the charging frequency from the second charging frequency to the third charging frequency according to the first message; determine the charging frequency according to the third charging frequency The power loss value corresponding to the device; judging whether the power loss value is within the preset range; if the power loss value is within the preset range, the third charging frequency is determined as the first charging frequency.

In a possible implementation manner, the processing unit 12 is specifically configured to: if the power loss value is not within the preset range, continue to adjust the third charging frequency until the adjusted third charging frequency corresponds to If the power loss value is within the preset range, the adjusted third charging frequency is determined as the first charging frequency.

In a possible implementation manner, the processing unit 12 is specifically configured to: determine a charging frequency range corresponding to the device according to the first message; and determine the first charging frequency within the charging frequency range.

In a possible implementation manner, the processing unit 12 is specifically configured to: determine the transmit power of the device according to the third charging frequency; acquire the receive power of the electronic device; determine the transmit power and the receive power according to the transmit power and the receive power The corresponding power loss value of the device.

In a possible implementation manner, the receiving unit 11 is further configured to receive a second message sent by the electronic device, where the second message is used to indicate that the temperature of the electronic device is greater than a fourth preset value; the processing unit 12 , and is further configured to perform a preset operation according to the second message to stop heating the battery of the electronic device; wherein, the preset operation includes one of the following: using the second charging frequency to charge the electronic device; or , reduce the transmit power of the charging device; or, stop charging the electronic device.

FIG. 6 is a schematic structural diagram of an exemplary battery heating device 20 provided by an embodiment of the present application. Referring to FIG. 6 , the battery heating device 20 may include:

The processing unit 21 is used to obtain the temperature of the device; the sending unit 22 is used to send a first message to the charging device when the temperature is less than the first preset value, where the first message is used to instruct the charging device to determine the first charging frequency, and adjust the charging frequency used to charge the device from the second charging frequency to the first charging frequency to heat the battery of the device, wherein the first charging frequency is aligned with the center line of the charging equipment The difference between the coil resonance center frequencies is greater than the difference between the second charging frequency and the coil resonance center frequency in the charging device, where the second charging frequency is the frequency currently used by the charging device to charge the device.

In a possible implementation manner, the processing unit 21 is specifically configured to obtain the temperature of the device when it is detected that the device is charged by the charging device.

In a possible implementation manner, the processing unit 21 is specifically configured to: acquire the power of the device; and acquire the temperature of the device if the power of the device is lower than a second preset value.

In a possible implementation manner, the processing unit 21 is specifically configured to: obtain the charging speed of the device within the first duration; if the charging speed of the device within the first duration is less than a third preset value , to obtain the temperature of the device.

In a possible implementation manner, the sending unit 22 is further configured to send the received power of the device to the charging device, where the received power is used to instruct the charging device to, according to the transmission power and the received power of the charging device, Determine the power loss value corresponding to the charging device.

In a possible implementation manner, the sending unit 22 is further configured to send a second message to the charging device when the temperature of the device is greater than a fourth preset value, where the second message is used to indicate the charging device Performing a preset operation to stop heating the battery of the device; wherein the preset operation includes one of the following: charging the device with the second charging frequency; or, reducing the transmission power of the charging device; or, stopping Charge the device.

FIG. 7 is a schematic structural diagram of an exemplary charging device 30 provided by an embodiment of the present application. Referring to FIG. 7 , the charging device 30 may include:

The charging device may include a transmitter 31 , a processor 32 , a memory 33 , a receiver 35 and at least one communication bus 34 . It should be understood that the transmitter 31 and the receiver 35 may be a combined module, for example, the combined module may be a transceiver, and the transceiver has the functions of the transmitter 31 and the receiver 35 at the same time. The communication bus 34 is used to implement communication connections between the elements. The memory 33 may include high-speed RAM memory, and may also include non-volatile storage NVM, such as at least one disk memory, and various computer programs may be stored in the memory 33 for performing various processing functions and implementing any of the foregoing embodiments. method steps. For example, the memory 33 is used to store a program for implementing the above method embodiments or each unit of the embodiment shown in FIG. 4 , and the processor 32 calls the program to execute the operations of the above method embodiments to realize the various units shown in FIG. 4 . corresponding function.

FIG. 8 is a schematic structural diagram of another exemplary electronic device 40 provided by an embodiment of the application. Referring to FIG. 8 , the electronic device 40 may include a transmitter 41 , a processor 42 , a memory 43 , a receiver 45 and At least one communication bus 44 . The functions of the specific parts have been described in detail in the above-mentioned FIG. 7 and will not be repeated here.

Part or all of the above units can also be implemented by being embedded in a certain chip of the charging device and the electronic device in the form of an integrated circuit. And they can be implemented individually or integrated together. That is, the above units can be configured as one or more integrated circuits that implement the above methods, such as: one or more specific integrated circuits (application specific integrated circuits, ASIC), or, one or more digital signal processors (digital signal processors) processor, DSP), or, one or more field programmable gate arrays (field programmable gate array, FPGA), etc.

The present application also provides a battery heating device, the device includes a processor and a transmission interface, the processor is configured to read program instructions stored in a memory, so as to execute the battery heating method provided in any of the foregoing embodiments.

The present application also provides a battery heating system, including the device shown in FIG. 5 and the device shown in FIG. 6 .

The present application also provides a readable storage medium for storing instructions, when the instructions are executed, the method for heating a battery provided by any of the foregoing embodiments is performed.

The present application also provides a program product comprising a computer program (ie, executing instructions), the computer program being stored in a readable storage medium. At least one processor of the charging device and the electronic device can read the computer program from the readable storage medium, and the at least one processor executes the computer program to make the charging device and the electronic device implement the battery heating methods provided by the foregoing various embodiments.

An embodiment of the present application further provides a battery heating device, comprising at least one storage element and at least one processing element, the at least one storage element is used for storing a program, and when the program is executed, the battery heating device executes any of the above-mentioned steps. Operation of the charging device and electronic device in an embodiment.

In the battery heating method, device, and device provided by the embodiments of the present application, the electronic device obtains its own temperature, and when the temperature is lower than the first preset value, sends a first message to the charging device, and the charging device determines the first message according to the first message. With a charging frequency, the charging frequency used for charging the electronic device is adjusted from the second charging frequency to the first charging frequency. Wherein, the difference between the first charging frequency and the coil resonance center frequency in the charging device is greater than the difference between the second charging frequency and the coil resonance center frequency in the charging device, and the second charging frequency is the current charge of the charging device to the electronic device. The frequency used for charging. Since the power loss is generated by shifting the charging frequency away from the resonant center frequency of the coil in the charging device, this part of the power loss is converted into heat energy to heat the battery of the electronic device. Compared with the prior art, this method can rapidly increase the temperature of the battery in the electronic device, so that the battery activity becomes better, thereby improving the charging efficiency.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

A method for heating a battery, characterized in that it is applied to a charging device, the method comprising:

receiving the first message sent by the electronic device;

According to the first message, a first charging frequency is determined, the difference between the first charging frequency and the resonant center frequency of the coil in the charging device is greater than the difference between the second charging frequency and the resonant center frequency of the coil in the charging device The second charging frequency is the frequency currently used by the charging device to charge the electronic device;

The charging frequency at which the electronic device is charged is adjusted from the second charging frequency to the first charging frequency to heat the battery of the electronic device.
The method according to claim 1, wherein determining the first charging frequency according to the first message comprises:

adjusting the charging frequency from the second charging frequency to a third charging frequency according to the first message;

determining a power loss value corresponding to the charging device according to the third charging frequency;

judging whether the power loss value is within a preset range;

If the power loss value is within the preset range, the third charging frequency is determined as the first charging frequency.
The method according to claim 2, wherein the method further comprises:

If the power loss value is not within the preset range, continue to adjust the third charging frequency until the power loss value corresponding to the adjusted third charging frequency is within the preset range, then adjust the adjusted The third charging frequency of is determined as the first charging frequency.
The method according to any one of claims 1 to 3, wherein the determining the first charging frequency according to the first message comprises:

determining a charging frequency range corresponding to the charging device according to the first message;

The first charging frequency is determined within the charging frequency range.
The method according to claim 2 or 3, wherein determining the power loss value corresponding to the charging device according to the third charging frequency, comprising:

determining the transmit power of the charging device according to the third charging frequency;

obtain the received power of the electronic device;

A power consumption value corresponding to the charging device is determined according to the transmit power and the receive power.
The method according to any one of claims 1 to 5, wherein the method further comprises:

receiving a second message sent by the electronic device, where the second message is used to indicate that the temperature of the electronic device is greater than a fourth preset value;

performing a preset operation to stop heating the battery of the electronic device according to the second message;

Wherein, the preset operation includes one of the following:

The electronic device is charged using the second charging frequency; or,

reduce the transmit power of the charging device; or,

Stop charging the electronic device.
A battery heating method, characterized in that, applied to electronic equipment, the method comprising:

obtain the temperature of the electronic device;

If the temperature is lower than the first preset value, a first message is sent to the charging device, where the first message is used to instruct the charging device to determine a first charging frequency and use the charging frequency used to charge the electronic device The frequency is adjusted from a second charging frequency to the first charging frequency to heat the battery of the electronic device, wherein the difference between the first charging frequency and the resonant center frequency of the coil in the charging device is greater than The difference between the second charging frequency and the resonance center frequency of the coil in the charging device, where the second charging frequency is the frequency currently used by the charging device to charge the electronic device.
The method according to claim 7, wherein the acquiring the temperature of the electronic device comprises:

When it is detected that the electronic device is charged by the charging device, the temperature of the electronic device is acquired.
The method according to claim 7, wherein the acquiring the temperature of the electronic device comprises:

obtain the power of the electronic device;

If the power of the electronic device is lower than the second preset value, acquire the temperature of the electronic device.
The method according to claim 7, wherein the acquiring the temperature of the electronic device comprises:

obtaining the charging speed of the electronic device within a first period of time;

If the charging speed of the electronic device within the first time period is less than a third preset value, acquire the temperature of the electronic device.
The method according to any one of claims 7 to 10, wherein the method further comprises:

Send the received power of the electronic device to the charging device, where the received power is used to instruct the charging device to determine a power consumption value corresponding to the charging device according to the transmit power and the received power of the charging device.
The method according to any one of claims 7 to 11, wherein the method further comprises:

If the temperature of the electronic device is greater than a fourth preset value, send a second message to the charging device, where the second message is used to instruct the charging device to perform a preset operation to stop the operation of the electronic device the battery is heated;

Wherein, the preset operation includes one of the following:

The electronic device is charged using the second charging frequency; or,

reduce the transmit power of the charging device; or,

Stop charging the electronic device.
A battery heating device, comprising:

a receiving unit, configured to receive the first message sent by the electronic device;

a processing unit, configured to determine a first charging frequency according to the first message, where the difference between the first charging frequency and the resonance center frequency of the coil in the device is greater than the second charging frequency and the coil resonance in the device the difference between the center frequencies, the second charging frequency is the frequency currently used by the device to charge the electronic device;

The processing unit is further configured to adjust the charging frequency used for charging the electronic device from the second charging frequency to the first charging frequency, so as to heat the battery of the electronic device.
The device according to claim 13, wherein the processing unit is specifically configured to:

adjusting the charging frequency from the second charging frequency to a third charging frequency according to the first message;

determining a power loss value corresponding to the device according to the third charging frequency;

judging whether the power loss value is within a preset range;

If the power loss value is within the preset range, the third charging frequency is determined as the first charging frequency.
The apparatus according to claim 14, wherein the processing unit is specifically configured to:

If the power loss value is not within the preset range, continue to adjust the third charging frequency until the power loss value corresponding to the adjusted third charging frequency is within the preset range, then adjust the adjusted The third charging frequency of is determined as the first charging frequency.
The device according to any one of claims 13 to 15, wherein the processing unit is specifically configured to:

determining a charging frequency range corresponding to the device according to the first message;

The first charging frequency is determined within the charging frequency range.
The device according to claim 14 or 15, wherein the processing unit is specifically configured to:

determining the transmit power of the device according to the third charging frequency;

obtain the received power of the electronic device;

A power loss value corresponding to the device is determined according to the transmit power and the receive power.
The apparatus according to any one of claims 13 to 17, wherein the receiving unit is further configured to receive a second message sent by the electronic device, where the second message is used to indicate the status of the electronic device. The temperature is greater than the fourth preset value;

The processing unit is further configured to perform a preset operation according to the second message to stop heating the battery of the electronic device;

Wherein, the preset operation includes one of the following:

The electronic device is charged using the second charging frequency; or,

reduce the transmit power of the device; or,

Stop charging the electronic device.
A battery heating device, comprising:

a processing unit for obtaining the temperature of the electronic device;

a sending unit, configured to send a first message to a charging device when the temperature is less than a first preset value, where the first message is used to instruct the charging device to determine a first charging frequency and to charge the device The adopted charging frequency is adjusted from the second charging frequency to the first charging frequency to heat the battery of the device, wherein the first charging frequency is between the resonant center frequency of the whole circle of the center line of the charging device The difference is greater than the difference between the second charging frequency and the resonant center frequency of the coil in the charging device, where the second charging frequency is the frequency currently used by the charging device to charge the device.
The device according to claim 19, wherein the processing unit is specifically configured to:

When it is detected that the device is charged by the charging device, the temperature of the device is obtained.
The device according to claim 19, wherein the processing unit is specifically configured to:

obtain the power of the device;

If the power of the device is lower than the second preset value, obtain the temperature of the device.
The device according to claim 19, wherein the processing unit is specifically configured to:

obtaining the charging speed of the device within the first time period;

If the charging speed of the device within the first time period is less than a third preset value, acquire the temperature of the device.
The apparatus according to any one of claims 19 to 22, wherein the sending unit is further configured to send the received power of the apparatus to the charging device, where the received power is used to indicate the charging device A power loss value corresponding to the charging device is determined according to the transmit power and the received power of the charging device.
The device according to any one of claims 19 to 23, wherein the sending unit is further configured to send a second message to the charging device when the temperature of the device is greater than a fourth preset value, The second message is used to instruct the charging device to perform a preset operation to stop heating the battery of the device;

Wherein, the preset operation includes one of the following:

The device is charged using the second charging frequency; or,

reduce the transmit power of the charging device; or,

Stop charging the device.
A charging device, comprising: a processor, a memory and a transceiver, where the memory is used to store instructions, the transceiver is used to communicate with other devices, and the processor is used to execute the instructions stored in the memory , so that the charging device performs the battery heating method according to any one of claims 1 to 6 .
An electronic device, characterized in that it comprises: a processor, a memory and a transceiver, the memory is used to store instructions, the transceiver is used to communicate with other devices, and the processor is used to execute the instructions stored in the memory , so that the electronic device performs the battery heating method according to any one of claims 7 to 12.
A chip, characterized in that the chip includes a programmable logic circuit and an input interface, the input interface is used to acquire data to be processed, and the logic circuit is used to perform any one of claims 1 to 12 on the data to be processed. The battery heating method of one.
A computer-readable storage medium, wherein instructions are stored in the computer-readable storage medium, wherein when the instructions are executed on a device, the device is made to execute the method described in any one of claims 1 to 12. battery heating method.
A program product, characterized in that the program product comprises a computer program, the computer program is stored in a readable storage medium, and at least one processor of a communication device can read the computer program from the readable storage medium , the execution of the computer program by the at least one processor causes the communication device to implement the method of any of claims 1-6 or the method of any of claims 7-12.