CN114243162B - Battery heating method, device and equipment - Google Patents
Battery heating method, device and equipment Download PDFInfo
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- CN114243162B CN114243162B CN202010940866.6A CN202010940866A CN114243162B CN 114243162 B CN114243162 B CN 114243162B CN 202010940866 A CN202010940866 A CN 202010940866A CN 114243162 B CN114243162 B CN 114243162B
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/443—Methods for charging or discharging in response to temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/446—Initial charging measures
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Networks & Wireless Communication (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the application provides a battery heating method, device and equipment, and relates to the technical field of wireless charging. The method comprises the following steps: the charging equipment receives a first message sent by the electronic equipment; determining a first charging frequency according to the first message, wherein the difference between the first charging frequency and the coil resonance center frequency of the charging equipment is larger than the difference between a second charging frequency and the coil resonance center frequency of the charging equipment, and the second charging frequency is the frequency adopted by the charging equipment for charging the electronic equipment at present; 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. The battery heating method, the battery heating device and the battery heating equipment provided by the embodiment of the application can rapidly increase the temperature of the battery in the electronic equipment, so that the activity of the battery is improved, and the charging efficiency is improved.
Description
Technical Field
The present application relates to the field of wireless charging technologies, and in particular, to a method, an apparatus, and a device for heating a battery.
Background
With the continuous development of mobile communication technology, wireless charging has been applied to various fields of daily life, and is favored because of its safety, convenience, durability, etc.
In general, when the ambient temperature is low, the activity of a battery in an electronic device may be deteriorated, resulting in a slow charging speed and even a case of a broken charge. At present, in order to improve the activity of a battery in an electronic device and improve the charging speed, when the temperature of the battery in the electronic device is lower than a preset value, a controller of the electronic device can control to reduce the rotating speed of a fan or close the fan, so that the air quantity generated by the fan is smaller or does not generate air quantity, and the heat dissipation of the battery of the electronic device is reduced, thereby achieving the purpose of heating the electronic device.
However, the above heating method is slow in heating speed, so that the battery activity is not high, resulting in low charging efficiency.
Disclosure of Invention
The embodiment of the application provides a battery heating method, device and equipment, which are applied to the technical field of wireless charging and are used for solving 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, applied to a charging device, including: receiving a first message sent by electronic equipment; determining a first charging frequency according to the first message, wherein the difference between the first charging frequency and the coil resonance center frequency of the charging equipment is larger than the difference between a second charging frequency and the coil resonance center frequency of the charging equipment, and the second charging frequency is the frequency adopted by the charging equipment for charging the electronic equipment at present; 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 the above scheme, in a low-temperature environment, when the charging device receives a first message sent by the electronic device and used for requesting to heat the battery, the charging device adjusts the second charging frequency adopted by the current charging to the first charging frequency, so that heat energy is generated.
The coil resonance center frequency is an ideal charging frequency, and the charging efficiency of the charging equipment can be maximized at the frequency, so that the charging requirement of the electronic equipment can be met at the maximum efficiency. In practical applications, the charging frequency of the charging device may deviate from the coil resonance center frequency, and the electronic device may be charged with a second charging frequency closest to the coil resonance center frequency, where the charging device may still maintain high-efficiency charging. However, when the charging frequency is further deviated from the resonance center frequency of the coil, the charging efficiency may be reduced, and a power loss may be generated between the coil of the charging device and the coil of the electronic device, but this part of the power loss may be converted into heat energy, which may be used to heat the battery of the electronic device. The method improves the heating speed of the battery, improves the activity of the battery, and can ensure that the charging equipment performs heating and charging work on the battery of the electronic equipment in a low-temperature environment.
In one possible implementation, determining the first charging frequency according to the first message includes: according to the first message, adjusting the charging frequency from the second charging frequency to a third charging frequency; determining a power loss value corresponding to the charging equipment according to the third charging frequency; judging whether the power loss value is in a preset range or not; and if the power loss value is in the preset range, determining the third charging frequency as the first charging frequency.
In one possible implementation, the method further includes: if the power loss value is not in the preset range, continuing to adjust the third charging frequency until the power loss value corresponding to the adjusted third charging frequency is in the preset range, and determining the adjusted third charging frequency as the first charging frequency. Therefore, by adjusting the third charging frequency, the power loss corresponding to the adjusted third charging frequency is in a preset range, so that the redundant power loss can be avoided, and the charging efficiency of the charging equipment is further ensured.
In the scheme, when the charging frequency is adjusted, the power loss value corresponding to the adjusted charging frequency is required to be ensured to be in a preset range, so that the power loss value can be ensured to be converted into heat energy, the electronic equipment can be heated, and the phenomenon of reduced charging efficiency caused by excessive power loss values can be avoided.
In one possible implementation, determining the first charging frequency according to the first message includes: according to the first message, determining a charging frequency range corresponding to the charging equipment; a first charging frequency is determined within this charging frequency range.
In the scheme, the first charging frequency can be ensured to be in the charging frequency range, and the charging equipment can be ensured to charge the electronic equipment normally.
In the scheme, different wireless charging standards and different charging coils have different charging frequency ranges, and an exemplary wireless charging alliance (wireless power consortium, WPC) coil formulates a charging frequency range of 125-145 kHz, so that different charging frequency ranges can be selected according to different requirements in practical application.
In one possible implementation manner, determining a power loss value corresponding to the charging device according to the third charging frequency includes: determining the transmitting power of the charging equipment according to the third charging frequency; acquiring the receiving power of the electronic equipment; and determining a power loss value corresponding to the charging equipment according to the transmitting power and the receiving power.
In the scheme, the power loss value corresponding to the charging device can be determined by calculating the difference value of the transmitting power and the receiving power.
In one possible implementation manner, the method further comprises the step of receiving a second message sent by the electronic device, wherein the second message is used for indicating that the temperature of the electronic device is greater than a preset value; according to the second message, performing a preset operation to stop heating the battery of the electronic device; the preset operation comprises the following steps: charging the electronic device with a second charging frequency; or, reducing the transmitting power of the charging device; alternatively, the charging of the electronic device is stopped.
In the scheme, when the temperature of the electronic equipment is larger than a preset value, the heating operation of the battery can be stopped so as to prevent the electronic equipment from being externally scalded, and the use experience of a user is affected.
In a second aspect, an embodiment of the present application provides a battery heating method, applied to an electronic device, including: acquiring the temperature of the electronic equipment; and if the temperature is smaller than a first preset value, sending a first message to the charging equipment, wherein the first message is used for indicating the charging equipment to determine a first charging frequency, and adjusting the charging frequency adopted for charging the electronic equipment from a second charging frequency to the first charging frequency so as to heat the battery of the electronic equipment, wherein the difference between the first charging frequency and the coil resonance center frequency of the charging equipment is larger than the difference between the second charging frequency and the coil resonance center frequency of the charging equipment, and the second charging frequency is the frequency adopted by the charging equipment for charging the electronic equipment currently.
In this scheme, because the battery of the electronic device may limit the current due to low temperature at the working environment temperature of 0-10 ℃ to cause slow charging, and the battery of the electronic device may be charged off due to low temperature at the working environment temperature of-10-0 ℃, in practical application, the first preset value may be 10 ℃.
In one possible implementation, obtaining the temperature of the electronic device includes: and when detecting that the electronic equipment is charged by the charging equipment, acquiring the temperature of the electronic equipment.
In this scheme, when detecting that the electronic device is in a charging state, in order to avoid a phenomenon that the charging speed is slow due to low temperature, the temperature of the electronic device itself may be acquired at this time.
In one possible implementation, obtaining the temperature of the electronic device includes: acquiring the electric quantity of the electronic equipment; and if the electric quantity of the electronic equipment is lower than a second preset value, acquiring the temperature of the electronic equipment.
In the scheme, when the electric quantity of the electronic equipment is lower than a second preset value, the temperature of the electronic equipment is obtained, so that the temperature condition of the electronic equipment can be timely known when the electric quantity is low, whether a heating charging mode needs to be started or not is judged, and the phenomenon of slower charging speed caused by low temperature is avoided.
In one possible implementation, obtaining the temperature of the electronic device includes: acquiring the current charging speed of the electronic equipment; and if the current charging speed of the electronic equipment is smaller than a third preset value, acquiring the temperature of the electronic equipment.
In this scheme, when the charging speed of electronic equipment in first time length is less than the third default, can acquire the self temperature of electronic equipment to can judge whether need open the heating charge mode, with heating electronic equipment's battery, avoid because low temperature leads to charging speed slow, influence user's phenomenon of use.
In one possible implementation, the method further includes: and transmitting the receiving power of the electronic equipment to the charging equipment, wherein the receiving power is used for indicating the charging equipment to determine the corresponding power loss value of the charging equipment according to the transmitting power and the receiving power.
In the scheme, the power loss value corresponding to the charging equipment can be determined according to the transmitting power of the charging equipment and the receiving power of the electronic equipment, so that the third charging frequency can be timely adjusted according to the power loss value, the adjusted power loss value corresponding to the third charging frequency is in a preset range, and the situation that the electronic equipment cannot be charged due to the fact that the power loss value exceeds the preset range is avoided, and the use of a user is affected.
In one possible implementation, the method further includes: if the temperature of the electronic equipment is greater than the fourth preset value, a second message is sent to the charging equipment, wherein the second message is used for indicating the charging equipment to execute preset operation so as to stop heating the battery of the electronic equipment; the preset operation comprises the following steps:
charging the electronic device with the second charging frequency; or reducing the transmitting power of the charging device; or stopping charging the electronic device.
The fourth preset value may be, for example, 20 c, because the battery normally operates in the range of 0 to 60 c, at which temperature the battery of the electronic device can normally operate and which temperature does not cause external scalding of the electronic device.
In this scheme, electronic equipment can in time monitor electronic equipment's temperature and avoid the battery performance of damage after the temperature of heating high.
In a third aspect, an embodiment of the present application provides a battery heating device, including: the receiving unit is used for receiving a first message sent by the electronic equipment; the processing unit is used for determining a first charging frequency according to the first message, wherein the difference between the first charging frequency and the coil resonance center frequency of the device is larger than the difference between a second charging frequency and the coil resonance center frequency of the device, and the second charging frequency is the frequency adopted by the device for charging the electronic equipment currently; the processing unit is further configured to adjust a charging frequency used for charging the electronic device from the second charging frequency to the first charging frequency, so as to heat a battery of the electronic device.
In a possible implementation, the processing unit is specifically configured to: according to the first message, adjusting the charging frequency from the second charging frequency to a third charging frequency; determining a power loss value corresponding to the device according to the third charging frequency; judging whether the power loss value is in a preset range or not; and if the power loss value is in the preset range, determining the third charging frequency as the first charging frequency.
In a possible implementation, the processing unit is specifically configured to: and if the power loss value is not in the preset range, continuing to adjust the third charging frequency until the power loss value corresponding to the adjusted third charging frequency is in the preset range, and determining the adjusted third charging frequency as the first charging frequency.
In a possible implementation, the processing unit is specifically configured to: determining a transmit power of the device based on the third charging frequency; acquiring the receiving power of the electronic equipment; and determining the power loss value corresponding to the charging equipment according to the transmitting power and the receiving power.
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 used for executing preset operation according to the second message so as to stop heating the battery of the electronic equipment; wherein the preset operation includes one of: charging the electronic device with the second charging frequency; or, reducing the transmit power of the device; or, the charging of the electronic device is stopped.
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 the sending unit is used for sending a first message to the charging equipment if the temperature is smaller than a first preset value, the first message is used for indicating the charging equipment to determine a first charging frequency, and the charging frequency adopted for charging the device is adjusted from a 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 resonance center frequency of the whole coil in the charging equipment is larger than the difference between the second charging frequency and the resonance center frequency of the coil in the charging equipment, and the second charging frequency is the frequency adopted by the charging equipment for charging the electronic equipment at present.
In a possible implementation, the processing unit is specifically configured to: upon detecting that the device is charged by the charging apparatus, a temperature of the device is obtained.
In a possible implementation, the processing unit is specifically configured to: acquiring the electric quantity of the device; and if the electric quantity of the device is lower than a second preset value, acquiring the temperature of the device.
In a possible implementation, the processing unit is specifically configured to: acquiring the charging speed of the device in a first time period; and if the charging speed of the device in the first time period is smaller than a third preset value, acquiring the temperature of the device.
In a fifth aspect, embodiments of the present application provide a battery heating system comprising an apparatus as described in the third aspect and an apparatus as described in the fourth aspect.
In a sixth aspect, an embodiment of the present application provides a battery heating device, the device including a processor and a memory, the memory having stored therein a computer program, the processor executing the computer program stored in the memory to cause the device to perform the method according to any one of the first to second aspects.
In a seventh aspect, an embodiment of the present application provides a battery heating device, including: a processor and interface circuit; the interface circuit is coupled to the processor; the processor is configured to invoke code instructions stored in the memory to perform the method as in any of the first to second aspects.
The apparatus according to the third aspect of the present application may be a charging device or a chip in the charging device, the charging device or the chip having a 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 may be implemented partially by hardware, or partially by software. The hardware or software includes one or more units corresponding to the above functions.
The charging device includes: the charging device may further comprise a processing unit, which may be a processor, and a transceiver, which may be a transceiver comprising radio frequency circuitry, and optionally the charging device further comprises a storage unit, which may be a memory, for example. When the charging device includes a storage unit, the storage unit is configured to store computer-executable instructions, and the processing unit is connected to the storage unit, and executes the computer-executable instructions stored in the storage unit, so that the charging device performs the battery heating method in the above aspects or any possible designs thereof.
The chip comprises: the processing unit may be a processor, and the transceiver unit may be an input/output interface, a pin, a circuit, or the like on a chip. The processing unit may execute the computer-executable instructions stored by the storage unit to cause the chip to perform the battery heating method in the aspects described above or any of its possible designs. Alternatively, the storage unit may be a storage unit (e.g., a register, a cache, etc.) within the chip, a storage unit (e.g., a read-only memory (ROM)) located outside the chip within the modulator, or other type of static storage device (e.g., a random access memory (random access memory, RAM)) that may store static information and instructions, etc.
The processor mentioned above may be a central processing unit (central processing unit, CPU), microprocessor or application specific integrated circuit (application specific integrated circuit, ASIC), or may be one or more integrated circuits for controlling the execution of the program of the battery heating method of the above aspects or any of their possible designs.
The apparatus according to the fourth aspect of the present application may be an electronic device or a chip in an electronic device, and the electronic device or the chip has a function of implementing the battery heating method in each of the above aspects or any possible designs thereof. The functions may be realized by hardware, or may be realized by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.
An electronic device includes: the electronic device may further comprise a processing unit, which may be a processor, and a transceiver, which may be a transceiver comprising radio frequency circuitry, and optionally a storage unit, which may be a memory, for example. When the electronic device includes a storage unit, the storage unit is configured to store computer-executable instructions, and the processing unit is connected to the storage unit, and the processing unit executes the computer-executable instructions stored in the storage unit, so that the electronic device performs the battery heating method in the above aspects or any possible designs thereof.
In an eighth aspect, an embodiment of the present application provides a battery heating system including the charging device according to the third aspect and the electronic device according to the fourth aspect.
In a ninth aspect, an embodiment of the present application provides a readable storage medium storing instructions that, when executed, cause a method as in any one of the first to second aspects to be implemented.
In a tenth aspect, embodiments of the present application provide a computer program product comprising instructions which, when run on a computer or processor, cause the computer or processor to perform the method of heating a battery provided in any of the first to second aspects of embodiments of the present application.
The embodiment of the application provides a battery heating method, a device and equipment, wherein electronic equipment acquires the temperature of the electronic equipment and sends a first message to charging equipment when the temperature is smaller than a first preset value, the charging equipment determines a first charging frequency according to the first message, and the charging frequency adopted for charging the electronic equipment is adjusted from a second charging frequency to the first charging frequency. The difference between the first charging frequency and the coil resonance center frequency of the charging device is greater than the difference between the second charging frequency and the coil resonance center frequency of the charging device, and the second charging frequency is the frequency adopted by the charging device to charge the electronic device currently. By shifting the charging frequency away from the center frequency of resonance of the coil in the charging device, a power loss is generated, and this power loss is converted into thermal energy to heat the battery of the electronic device. Compared with the prior art, the method can quickly raise the temperature of the battery in the electronic equipment, so that the battery activity is improved, and the charging efficiency is improved.
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 according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of an exemplary charging circuit according to an embodiment of the present application;
fig. 4 is a signaling diagram of an exemplary battery heating method according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an exemplary battery heating device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of an exemplary battery heating device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of an exemplary charging device according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of another exemplary electronic device according to an embodiment of the present application.
Detailed Description
In order to clearly describe the technical solution of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", etc. are used to distinguish the same item or similar items having substantially the same function and effect. For example, the first charging frequency and the second charging frequency are merely for distinguishing between different charging frequencies, and are not limited in order. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ.
In embodiments of the application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.
In the present application, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a alone, a and B together, and B alone, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.
Fig. 1 is an exemplary application scenario diagram provided in an embodiment of the present application. As shown in fig. 1, the scenario includes an electronic device 101 and a charging device 102, where the charging device 102 charges the electronic device 101 wirelessly. Specifically, the wireless charging may be performed by using the principle of electromagnetic wave induction, and there is one coil in each of the charging device and the electronic device, where the coil in the charging device is called a primary coil, and the coil in the electronic device is called a secondary coil. The primary coil is connected with a wired power supply to generate electromagnetic signals, and the secondary coil induces the electromagnetic signals to generate current, so that the purpose that the charging equipment charges the electronic equipment is achieved.
In some embodiments, the electronic device 101 may be a mobile terminal device, such as a mobile phone (or "cellular" phone), computer, and data card. For example, mobile devices, which may be portable, pocket, hand-held, computer-built-in or vehicle-mounted, exchange voice and/or data with the radio access network. For example, personal communication services (personal communication service, PCS) phones, cordless phones, personal digital assistants (personal digital assistant, PDA), tablet computers (Pad). The electronic device 101 may also be a User Equipment (UE), a Mobile Terminal (MT), or the like.
Fig. 2 is a schematic structural diagram of an exemplary electronic device according to 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 (universal serial bus, USB) interface 130, a charge management module 140, a power management module 141, a battery 142, an antenna 1, an antenna 2, a mobile communication module 150, a wireless communication module 160, an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an earphone interface 170D, a sensor 180, keys 190, a motor 191, an indicator 192, a camera 193, a display 194, and a user identification module (subscriber identification module, SIM) card interface 195, etc.
It is to be understood that the configuration illustrated in the present embodiment does not constitute a specific limitation on the electronic apparatus 101. In other embodiments of the application, the electronic device 101 may include more or less components than illustrated, or certain components may be combined, or certain components may be split, or different arrangements of components. 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, such as: 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), a controller, a video codec, a digital signal processor (digital signal processor, DSP), a baseband processor, a display processing unit (display process unit, DPU), and/or a neural-network processor (neural-network processing unit, NPU), etc. Wherein the different processing units may be separate 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 a neural hub and a command center of the electronic device 101, among others. The controller can generate operation control signals according to the instruction operation codes and the time sequence signals to finish the control of instruction fetching and instruction execution.
A memory may also be provided in the processor 110 for storing instructions and data. In some embodiments, the memory in the processor 110 is a cache memory. The memory may hold instructions or data that the processor 110 has just used or recycled. If the processor 110 needs to reuse the instruction or data, it can be called directly from the memory. This avoids repeated accesses and reduces the latency of the processor 110, thereby improving the efficiency of the system of the electronic device 101.
In some embodiments, the processor 110 may include one or more interfaces. The interfaces 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 receiver transmitter (universal asynchronous receiver/transmitter, UART) interface, a mobile industry processor interface (mobile industry processor interface, MIPI), a general-purpose input/output (GPIO) interface, a subscriber identity module (subscriber identity module, SIM) interface, and/or a universal serial bus (universal serial bus, USB) interface, among others. The USB interface 130 is an interface conforming to the USB standard, and may specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, or the like. The USB interface 130 may be used to connect a charger to charge the electronic device 101, or may be used to transfer data between the electronic device 101 and a peripheral device. And can also be used for connecting with a headset, and playing audio through the headset.
It should be understood that the connection relationship between the modules illustrated in the embodiment of the present application is only illustrative, and does not limit the structure of the electronic device 101. In other embodiments of the present application, the electronic device 101 may also use different interfacing manners, or a combination of multiple interfacing manners, as in the above embodiments.
The charge management module 140 is configured to receive a charge input from a charger. The charger can be a wireless charger or a wired charger. In some wired charging embodiments, the charge management module 140 may receive a charging input of a wired charger through the USB interface 130. In some wireless charging embodiments, the charge management module 140 may receive wireless charging input through a wireless charging coil of the electronic device 101. The charging management module 140 may also be configured to provide power to the electronic device 101 through the power management module 141 while charging the battery 142.
The power management module 141 is used for connecting the battery 142, and the charge management module 140 and the processor 110. The power management module 141 receives input from the battery 142 and/or the charge management module 140 to power the processor 110, the internal memory 121, the display 194, the camera 193, the wireless communication module 160, and the like. The power management module 141 may also be configured to monitor battery capacity, battery cycle number, battery health (leakage, impedance) and other parameters. In 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 charge management module 140 may be disposed 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, a modem processor, a baseband processor, and the like. The antennas 1 and 2 are used for transmitting and receiving electromagnetic wave signals. Each antenna in the electronic device 101 may be used to cover a single or multiple communication bands. Different antennas may also be multiplexed to improve the utilization of the antennas. For example: the antenna 1 may be multiplexed into a diversity antenna of a wireless local area network. In other embodiments, the antenna may be used in conjunction with a tuning switch.
The mobile communication module 150 may provide a solution for wireless communication 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, etc. The mobile communication module 150 may receive electromagnetic waves from the antenna 1, perform processes such as filtering, amplifying, and the like on the received electromagnetic waves, and transmit the processed electromagnetic waves to the modem processor for demodulation. The mobile communication module 150 can amplify the signal modulated by the modem processor, and convert the signal into electromagnetic waves through the antenna 1 to radiate. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be disposed in the processor 110. In some embodiments, at least some of the functional modules of the mobile communication module 150 may be provided in the same device as at least some of the modules of the processor 110.
The modem processor may include a modulator and a demodulator. The modulator is used for modulating the low-frequency baseband signal to be transmitted into a medium-high frequency signal. The demodulator is used for demodulating the received electromagnetic wave signal into a low-frequency baseband signal. The demodulator then 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 then transferred to the application processor. The application processor outputs sound signals through an audio device (not limited to the speaker 170A, the receiver 170B, etc.), or displays images or video 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 provided in the same device as the mobile communication module 150 or other functional module, independent of the processor 110.
The wireless communication module 160 may provide solutions for wireless communication including wireless local area network (wireless local area networks, WLAN), bluetooth, global navigation satellite system (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), NFC, infrared (IR), etc. applied on the electronic device 101. The wireless communication module 160 may be one or more devices that integrate at least one communication processing module. The wireless communication module 160 receives electromagnetic waves via the antenna 2, modulates the electromagnetic wave signals, filters the electromagnetic wave signals, and transmits the processed signals to the processor 110. The wireless communication module 160 may also receive a signal to be transmitted from the processor 110, frequency modulate it, amplify it, and convert it to electromagnetic waves for radiation via the antenna 2.
In some embodiments, antenna 1 and mobile communication module 150 of electronic device 101 are coupled, and antenna 2 and wireless communication module 160 are coupled, such that electronic device 101 may communicate with a network and other devices via wireless communication techniques. The wireless communication techniques may include GSM, GPRS, CDMA, WCDMA, TD-SCDMA, LTE, GNSS, WLAN, NFC, FM, and/or IR techniques, among others. The GNSS may include a global satellite positioning system (global positioning system, GPS), a global navigation satellite system (global navigation satellite system, GLONASS), a Beidou satellite navigation system (beidou navigation satellite system, BDS), a quasi zenith satellite system (quasi-zenith satellite system, QZSS) and/or a satellite based augmentation system (satellite based augmentation systems, SBAS).
The electronic device 101 may implement display functions 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 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.
The display screen 194 is used to display images, videos, and the like. The display 194 includes a display panel. The display panel may employ a liquid crystal display (liquid crystal display, LCD), an organic light-emitting diode (OLED), an active-matrix organic light-emitting diode (AMOLED) or an active-matrix organic light-emitting diode (matrix organic light emitting diode), a flexible light-emitting diode (flex), a mini, a Micro led, a Micro-OLED, a quantum dot light-emitting diode (quantum dot light emitting diodes, QLED), or the like. In some embodiments, the electronic device 101 may include 1 or N display screens 194, N being a positive integer greater than 1.
The electronic device 101 may implement shooting functionality through an ISP, one or more cameras 193, video codecs, a GPU, one or more display screens 194, an application processor, and so on.
The NPU is a neural-network (NN) computing processor, and can rapidly process input information by referencing a biological neural network structure, for example, referencing a transmission mode between human brain neurons, and can also continuously perform self-learning. Applications such as intelligent cognition of the electronic device 101 may be implemented by the NPU, for example: image recognition, face recognition, speech recognition, text understanding, etc.
The DPU is also referred to as a Display Sub-System (DSS) for adjusting the color of the Display screen 194, which may be adjusted by a three-dimensional look-up table (3D look up table,3D LUT). The DPU can also perform processes such as scaling, noise reduction, contrast enhancement, backlight brightness management, hdr processing, display parameter Gamma adjustment, and the like on the picture.
The external memory interface 120 may be used to connect an external memory card, such as a Micro SD card, to enable expansion of the memory capabilities of the electronic device 101. The external memory card communicates with the processor 110 through an external memory interface 120 to implement data storage functions. For example, data files such as music, photos, videos, etc. are stored in an external memory card.
The internal memory 121 may be used to store one or more computer programs, including instructions. The processor 110 may cause the electronic device 101 to execute various functional applications, data processing, and the like by executing the above-described instructions stored in the internal memory 121. The internal memory 121 may include a storage program area and a storage data area. The storage program area can store an operating system; the storage area may also store one or more applications (e.g., gallery, contacts, etc.), and so forth. The storage data area may store data created during use of the electronic device 101 (e.g., photos, contacts, etc.), and so on. In addition, the internal memory 121 may include a high-speed random access memory, and may further include a nonvolatile memory such as at least one magnetic disk storage device, a flash memory device, a universal flash memory (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 a memory provided in the processor 110.
The electronic device 101 may implement audio functionality through an audio module 170, a speaker 170A, a receiver 170B, a microphone 170C, an ear-headphone interface 170D, an application processor, and the like. Such as music playing, recording, etc. Wherein the audio module 170 is used to convert digital audio information into an analog audio signal output and also to convert an analog audio input into a digital audio signal. The audio module 170 may also be used to encode and decode audio signals. In some embodiments, the audio module 170 may be disposed in the processor 110, or a portion of the functional modules of the audio module 170 may be disposed in the processor 110. The speaker 170A, also referred to as a "horn," is used to convert audio electrical signals into sound signals. The electronic device 101 may listen to music, or to hands-free conversations, through the speaker 170A. A receiver 170B, also referred to as a "earpiece", is used to convert the audio electrical signal into a sound signal. When the electronic device 101 picks up a phone call or voice message, the voice can be picked up by placing the receiver 170B close to the human ear. Microphone 170C, also referred to as a "microphone" or "microphone", is used to convert sound signals into electrical signals. When making a call or transmitting voice information, the user can sound near the microphone 170C through the mouth, inputting a sound signal to 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, and may implement a noise reduction function in addition to collecting sound signals. In other embodiments, the electronic device 101 may also be provided with three, four, or more microphones 170C to enable collection of sound signals, noise reduction, identification of sound sources, directional recording functions, etc. The earphone interface 170D is used to connect a wired earphone. The earphone interface 170D may be a USB interface 130, or may be a 3.5mm open mobile electronic device platform (open mobile terminal platform, OMTP) standard interface, or may be a american cellular telecommunications industry association (cellular telecommunications industry association of the USA, CTIA) standard interface.
The sensors 180 may include a pressure sensor 180A, a gyroscope sensor 180B, an air pressure sensor 180C, a magnetic sensor 180D, an acceleration sensor 180E, a distance sensor 180F, a proximity sensor 180G, a fingerprint sensor 180H, a temperature sensor 180J, a touch sensor 180K, an ambient light sensor 180L, a bone conduction sensor 180M, and the like.
The pressure sensor 180A is used for sensing a pressure signal, and can convert the pressure signal into an electrical signal. In some embodiments, the pressure sensor 180A may be disposed on the display screen 194. The pressure sensor 180A is of various types, such as a resistive pressure sensor, an inductive pressure sensor, a capacitive pressure sensor, and the like. The capacitive pressure sensor may be a capacitive pressure sensor comprising at least two parallel plates with conductive material. The capacitance between the electrodes changes when a force is applied to the pressure sensor 180A. The electronic device 101 determines the strength of the pressure from the change in capacitance. When a touch operation is applied to the display screen 194, the electronic apparatus 101 detects the intensity of the touch operation according to the pressure sensor 180A. The electronic device 101 may also calculate the location of the touch from the detection signal of the pressure sensor 180A. In some embodiments, touch operations that act on the same touch location, but at different touch operation strengths, may correspond to different operation instructions. For example: and executing an instruction for checking the short message when the touch operation with the touch operation intensity smaller than the first pressure threshold acts on the short message application icon. And executing an instruction for newly creating the short message when the touch operation with the touch operation intensity being greater than or equal to the first pressure threshold acts on the short message application icon.
The gyro sensor 180B may be used to determine a motion gesture of the electronic device 101. In some embodiments, the angular velocity of the electronic device 101 about three axes (i.e., x, y, and z axes) may be determined by the gyro sensor 180B. The gyro sensor 180B may be used for photographing anti-shake. For example, when the shutter is pressed, the gyro sensor 180B detects the shake angle of the electronic device 101, calculates the distance to be compensated by the lens module according to the angle, and makes the lens counteract the shake of the electronic device 101 through the reverse motion, thereby realizing anti-shake. The gyro sensor 180B can also be used for navigation, somatosensory game scenes, and the like.
The acceleration sensor 180E may detect the magnitude of acceleration of the electronic device 101 in various directions (typically three axes). The magnitude and direction of gravity can be detected when the electronic device 101 is stationary. The electronic equipment gesture recognition method can also be used for recognizing the gesture of the electronic equipment, and is applied to horizontal and vertical screen switching, pedometers and other applications.
A distance sensor 180F for measuring a distance. The electronic device 101 may measure the distance by infrared or laser light. In some embodiments, the electronic device 101 may range using the distance sensor 180F to achieve fast focus.
The proximity light sensor 180G may include, for example, a Light Emitting Diode (LED) and a light detector, such as a photodiode. The light emitting diode may be an infrared light emitting diode. The electronic device 101 emits infrared light outwards through the light emitting diode. The electronic device 101 detects infrared reflected light from nearby objects using a photodiode. When sufficient reflected light is detected, it can be determined that there is an object in the vicinity of the electronic device 101. When insufficient reflected light is detected, the electronic device 101 may determine that there is no object in the vicinity of the electronic device 101. The electronic device 101 may detect that the user holds the electronic device 101 in close proximity to the ear using the proximity light sensor 180G, so as to automatically extinguish the screen for power saving purposes. The proximity light sensor 180G may also be used in holster mode, pocket mode to automatically unlock and lock the screen.
The ambient light sensor 180L is used to sense ambient light level. The electronic device 101 may adaptively adjust the brightness of the display 194 based on the perceived ambient light level. The ambient light sensor 180L may also be used to automatically adjust white balance when taking a photograph. Ambient light sensor 180L may also cooperate with proximity light sensor 180G to detect if electronic device 101 is in a pocket to prevent false touches.
A fingerprint sensor 180H (also referred to as a fingerprint identifier) for capturing a fingerprint. The electronic device 101 may utilize the collected fingerprint feature to unlock the fingerprint, access the application lock, photograph the fingerprint, answer the incoming call by the fingerprint, and so on. In addition, other notes regarding fingerprint sensors can be found in international patent application PCT/CN2017/082773 entitled "method of handling notifications and electronic device", the entire contents of which are incorporated herein by reference.
The touch sensor 180K may also be referred to as a touch panel or 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, which is also referred to as a touch screen. The touch sensor 180K is for detecting a touch operation acting thereon or thereabout. The touch sensor may communicate the detected touch operation to the application processor to determine the touch event type. Visual output related to touch operations may be provided through the display 194. In other embodiments, the touch sensor 180K may also be disposed on the surface of the electronic device 101 at a different location than the display 194.
The bone conduction sensor 180M may acquire a vibration signal. In some embodiments, bone conduction sensor 180M may acquire a vibration signal of a human vocal tract vibrating bone pieces. The bone conduction sensor 180M may also contact the pulse of the human body to receive the blood pressure pulsation signal. In some embodiments, bone conduction sensor 180M may also be provided in a headset, in combination with an osteoinductive headset. The audio module 170 may analyze the voice signal based on the vibration signal of the sound portion vibration bone block obtained by the bone conduction sensor 180M, so as to implement a voice function. The application processor may analyze the heart rate information based on the blood pressure beat signal acquired by the bone conduction sensor 180M, so as to implement a heart rate detection function.
The keys 190 include a power-on key, a volume key, etc. The keys 190 may be mechanical keys or touch keys. The electronic device 101 may receive key inputs, generating key signal inputs related to user settings and function controls of the electronic device 101.
The SIM card interface 195 is used to connect a SIM card. The SIM card may be contacted and separated from the electronic device 101 by inserting into the SIM card interface 195, or by extracting from the SIM card interface 195. The electronic device 101 may support 1 or N SIM card interfaces, N being a positive integer greater than 1. The SIM card interface 195 may support Nano SIM cards, micro SIM cards, and the like. The same SIM card interface 195 may be used to insert multiple cards simultaneously. The types of the plurality of cards may be the same or different. The SIM card interface 195 may also be compatible with different types of SIM cards. The SIM card interface 195 may also be compatible with external memory cards. The electronic device 101 interacts with the network through the SIM card to implement functions such as talking and data communication. In some embodiments, the electronic device 101 employs esims, i.e.: an embedded SIM card. The eSIM card can be embedded in the electronic device 101 and cannot be separated from the electronic device 101.
Fig. 3 is a schematic diagram illustrating an exemplary charging circuit according to an embodiment of the present application. As shown in fig. 3, in this embodiment, the charging circuit structure may include a transmitting-side integrated circuit (integrated circuit, IC) and a receiving-side integrated circuit, and the transmitting-side IC transmits electric energy to the receiving-side IC for wireless charging.
In one possible implementation manner, the transmitting end IC is located inside the charging device and is used for adjusting the charging resonance frequency of the primary coil, and the transmitting end IC may include: a microcontroller (micro controller unit, MCU), a power supply module, a voltage detection circuit, a current detection circuit, a rectification circuit, a resonance circuit, a decoding circuit and a voltage regulation circuit.
Further, the MCU may output a modulation signal to the rectifying circuit and the voltage regulating circuit, the voltage regulating circuit may be used to output a voltage regulating signal, the rectifying circuit may be used to output an ac signal, and the resonant circuit may be used to output an ac signal to the primary coil, so that the primary coil emits a current to the secondary coil. In addition, the MCU is connected with the fan and a negative temperature coefficient (negative temperature coefficient, NTC), and when the temperature of the charging equipment rises and/or falls to a preset threshold value, the MCU controls the rotating speed and/or the switch of the fan by acquiring temperature information acquired by the NTC. The power supply module can be used for supplying power to the MCU, the voltage detection circuit and the current detection circuit are connected with the MCU and the rectifying circuit, the voltage detection circuit can be used for detecting voltage information of the primary coil, and the current detection circuit can be used for detecting current information of the primary coil.
In one possible implementation, a receiving end IC is located inside the electronic device and is configured to control a secondary coil of the electronic device to receive a current emitted by a primary coil, where the receiving end IC may include: MCU, rectifier circuit and voltage regulation circuit. The functions of the MCU, the rectifying circuit and the voltage regulating circuit are the same as above, and are not repeated here.
In general, the length of standby time and the speed of charging of an electronic device are largely dependent on the activity of a battery, which is related to the operating environment temperature of the battery, and the ideal operating environment temperature is 15 to 40 ℃. When the operating environment temperature of the battery is low, the chemical reaction of the battery is abnormal, and the activity of the battery is poor, so that the charging speed is slow and even the charging is interrupted, and the battery needs to be heated to improve the charging efficiency of wireless charging.
Currently, the electronic device may increase the charging efficiency of wireless charging by reducing the rotation speed of the fan or turning off the fan. When the electronic equipment is charged, the battery temperature can be detected in real time or periodically, the detected battery temperature is sent to the charging equipment, and the charging equipment adjusts the rotating speed of the fan or turns off the fan according to the battery temperature.
In general, the air volume generated by a fan is proportional to the rotational speed of the fan, that is, the higher the rotational speed of the fan is, the larger the air volume generated by the lower the rotational speed is, the smaller the air volume generated by the lower the rotational speed is, and the air volume is not generated when the fan is turned off. When the battery temperature of the electronic equipment is lower, the controller can reduce the rotating speed of the fan, so that the generated air quantity is smaller, or the fan is closed to not generate air quantity any more, and the heat dissipation of the battery of the electronic equipment is reduced, so that the purpose of heating the battery of the electronic equipment is achieved, and the charging efficiency of wireless charging is improved.
However, the method for heating the battery of the electronic device achieves the purpose of heating the battery of the electronic device by reducing heat dissipation of the battery of the electronic device and slowing down temperature drop of the battery of the electronic device.
Based on the above problems, the embodiment of the application provides a battery heating method, a device and equipment, wherein an electronic device acquires the temperature of the electronic device, and when the temperature is smaller than a first preset value, the electronic device sends a first message to a charging device, the charging device determines a first charging frequency according to the first message, and the charging frequency adopted for charging the electronic device is adjusted from a second charging frequency to the first charging frequency. The difference between the first charging frequency and the coil resonance center frequency of the charging device is greater than the difference between the second charging frequency and the coil resonance center frequency of the charging device, and the second charging frequency is the frequency adopted by the charging device to charge the electronic device currently.
The coil resonance center frequency is an ideal charging frequency, and the charging efficiency of the charging equipment can be maximized at the frequency, so that the charging requirement of the electronic equipment can be met at the maximum efficiency. In practical applications, the charging frequency of the charging device may deviate from the coil resonance center frequency, and the electronic device may be charged with a second charging frequency closest to the coil resonance center frequency, where the charging device may still maintain high-efficiency charging. However, when the charging frequency is further deviated from the resonance center frequency of the coil, the charging efficiency may be reduced, and a power loss may be generated between the coil of the charging device and the coil of the electronic device, but this part of the power loss may be converted into heat energy, which may be used to heat the battery of the electronic device. The method improves the heating speed of the battery, improves the activity of the battery, and can ensure that the charging equipment performs heating and charging work on the battery of the electronic equipment in a low-temperature environment. Specific implementation manner will be described in detail in the following embodiments, which are not described herein.
The technical scheme of the application will be described in detail through specific embodiments with reference to the accompanying drawings. It should be noted that the following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.
Fig. 4 is a signaling diagram of an exemplary battery heating method according to an embodiment of the present application. As shown in fig. 4, in the present embodiment, the battery heating method may include the steps of:
step 401: the electronic device acquires its own temperature.
In the embodiment of the application, the temperature of the electronic equipment can be obtained through an NTC, thermocouple, resistance thermometer and other temperature sensors.
In one possible implementation, the charging device and the electronic device need to be authenticated before acquiring the temperature of the electronic device itself to determine whether the charging device can charge the electronic device. And after the authentication is successful, and when the electronic equipment is detected to be charged through the charging equipment, acquiring the temperature of the electronic equipment.
The authentication of the charging device and the electronic device is illustratively divided into two phases, the first phase being a ping phase in which the primary coil of the charging device sends a ping signal to the secondary coil of the electronic device, which may contain a signal strength packet and a termination transmission packet. The signal strength data packet is used for indicating the coupling degree of the primary coil and the secondary coil, and the termination data packet is used for indicating the charging equipment to stop transmitting the electric energy to the electronic equipment. The second phase is an identification and configuration phase in which the secondary coil of the electronic device feeds back identification data packets and configuration data packets to the charging device in accordance with the received ping signal. The identification data packet is used for the electronic device to provide identification information, such as a product serial number, for the charging device. The configuration data packet is used for the electronic device to provide parameter configuration information, such as maximum power required to be output by the rectifying circuit, for the charging device. After receiving the identification and configuration information fed back by the secondary coil in the electronic device, the primary coil in the charging device adjusts corresponding parameters of the primary coil, such as adjusting power parameters and adjusting frequency parameters. And after the parameter adjustment is finished, the authentication can be finished, and the power transmission stage is started, namely the electronic equipment is charged.
It should be understood that the electronic device may acquire its own temperature in real time, or may periodically acquire its own temperature. Of course, in order to reduce the power consumption of the electronic device, the temperature of the electronic device itself may be acquired when the preset condition is satisfied.
In one possible implementation, the temperature of the electronic device itself may be obtained upon detecting that the electronic device is charged by the charging device.
Specifically, when the electronic device is detected to be in the charging state, in order to avoid a phenomenon that the charging speed is slow due to low temperature, the temperature of the electronic device itself may be acquired at this time.
In another possible implementation manner, the temperature of the electronic device may be obtained by obtaining the electric quantity of the electronic device and when it is determined that the electric quantity of the electronic device is lower than the second preset value.
Specifically, when it is determined that the electric quantity of the electronic device is lower than the second preset value, it is indicated that the current electronic device is low electric quantity, and at this time, the electronic device is about to be charged, so that the temperature of the electronic device itself can be obtained, and it is determined whether a heating charging mode needs to be started to perform charging, so that the activity of a battery of the electronic device is improved.
In the method, when the electric quantity of the electronic equipment is lower than the second preset value, the temperature of the electronic equipment is obtained, so that the temperature condition of the electronic equipment can be timely known when the electric quantity is low, whether a heating charging mode needs to be started or not is judged, and the phenomenon of slower charging speed caused by low temperature is avoided.
In still another possible implementation manner, the temperature of the electronic device may be obtained by obtaining a charging speed of the electronic device in the first period of time, and when it is determined that the charging speed of the electronic device in the first period of time is less than a third preset value.
Specifically, before acquiring the temperature of the electronic device itself, it may be first determined whether the charging speed of the electronic device in the first period is lower than a third preset value. For example, when the charging speed of the electronic device is lower than the third preset value in the first duration, it is indicated 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 in the first duration, so that the battery activity of the electronic device is poor, and the charging speed is slow, and at this time, the temperature of the electronic device itself may be obtained through the temperature sensor.
In this way, 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 whether the heating charging mode needs to be started or not can be judged, the battery of the electronic device is heated, and the phenomenon that the use of a user is affected due to slow charging speed caused by low temperature is avoided.
In another possible implementation manner, before acquiring the temperature of the electronic device, it is first required to determine whether the position information of the electronic device changes, and if it is determined that the position information of the electronic device changes, the temperature of the battery in the electronic device is acquired.
Wherein the position information is obtainable by a position sensor. For example, when the location information of the electronic device changes, the environmental temperature of the environment in which the electronic device is located may also change, and thus it is necessary to acquire the temperature of the electronic device through a temperature sensor.
In the method, when the position information of the electronic equipment changes, the temperature of the electronic equipment can be obtained, so that whether a heating charging mode needs to be started or not can be judged, the battery of the electronic equipment is heated, and the phenomenon of slow charging speed caused by low temperature is avoided.
In yet another possible implementation, before acquiring the temperature of the electronic device itself, the screen state of the electronic device needs to be determined first, and when the screen of the electronic device is in the off-screen state, the temperature of the electronic device itself is acquired.
Exemplary screen states include a bright screen state and a dead screen state. When the screen state of the electronic device is the bright screen state, the user is indicated to be operating the electronic device, and the processor load is increased to cause the temperature of the electronic device to rise, so that the battery of the electronic device is not required to be subjected to heating treatment, and the temperature of the electronic device is not required to be acquired. When the screen state of the electronic equipment is in the screen-off state, the user is not operated on the electronic equipment, the load of the processor is small, and the temperature rise of the battery of the electronic equipment is not obvious. If the environmental temperature is too low at this time, the battery cannot be charged or the charging speed is slow, so that the temperature of the electronic equipment can be obtained when the electronic equipment is in a screen-off state.
The temperature of the electronic device itself may be obtained when any one of the above conditions is satisfied, or the temperature of the electronic device itself may be obtained 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 in the first duration is less than a third preset value, the temperature of the electronic device itself is obtained, and the like.
Step 402: and if the temperature is smaller than the first preset value, the electronic equipment sends a first message to the charging equipment.
In the embodiment of the application, the battery of the electronic device can limit the current due to low temperature at the working environment temperature of 0-10 ℃ to cause slow charging. At the working environment temperature of-10 to 0 ℃, the battery of the electronic equipment can be charged off due to low temperature. Thus, in one possible implementation, the first preset value may be 10 ℃.
Specifically, after the temperature of the electronic device itself is obtained, it is necessary to determine whether the temperature is less than a first preset value. For example, when the temperature is less than the first preset value, it may be understood that the electronic device is currently in a low temperature environment, and the heating charging mode needs to be turned on. At this time, the electronic device may send a first message to the charging device, where the first message is used to instruct the charging device to determine a first charging frequency, and adjust a charging frequency used to charge the electronic device from a second charging frequency to the first charging frequency, so as to heat a battery of the electronic device.
In one possible implementation manner, the electronic device sends a receiving power to the charging device, where the receiving power is used to instruct the charging device to determine a power loss value corresponding to the charging device according to the transmitting power and the receiving power. The power loss value corresponding to the charging equipment can be determined according to the transmitting power of the charging equipment and the receiving power of the electronic equipment, so that the third charging frequency can be timely adjusted according to the power loss value, the power loss value corresponding to the adjusted third charging frequency is in a preset range, and the situation that the electronic equipment cannot be charged due to the fact that the power loss value exceeds the preset range is avoided, and the use of a user is affected.
Step 403: the charging device determines a first charging frequency according to the first message.
The difference between the first charging frequency and the coil resonance center frequency of the charging device is greater than the difference between the second charging frequency and the coil resonance center frequency of the charging device, and the second charging frequency is the frequency adopted by the charging device to charge the electronic device currently. The coil resonance center frequency is the charging frequency that makes the charging efficiency highest.
Specifically, there may be a deviation between the second charging frequency adopted by the charging device when the charging device is currently charging the electronic device and the coil resonance center frequency, where the deviation is a first difference, and the first charging frequency determined by the charging device is also a deviation between the first charging frequency and the coil resonance center frequency, where the deviation is a second difference, and the second difference is greater than the first difference. For example, the resonance center frequency of the coil is 135kHz, the second charging frequency is 136kHz, the determined first charging frequency is 138kHz, at this time, the first difference is 1kHz, and the second difference is 3kHz, that is, the condition that the second difference is greater than the first difference is satisfied. When the second difference is larger than the first difference, the power loss value of the charging device during charging is increased, and the power loss value is converted into heat energy, so that the battery of the electronic device can be heated when the electronic device is charged by using the first charging frequency.
In addition, the second charging frequency may also be a coil resonance center frequency of the charging device. That is, the charging device currently charges the electronic device with the coil resonance center frequency, and at this time, there is no difference between the second charging frequency and the coil resonance center frequency. Because the electronic equipment adopts the coil resonance center frequency to charge the electronic equipment, the charging efficiency is higher.
The charging device determines the first charging frequency according to the first message, which may be that a charging frequency range corresponding to the charging device is determined according to the first message, and then the first charging frequency is determined in the charging frequency range.
Specifically, in order to ensure that the charging device stably charges the electronic device, and normal operations of the charging device and the electronic device, the charging device needs to determine a first charging frequency in a corresponding charging frequency range thereof, and charge the electronic device according to the first charging frequency. In addition, the charging device comprises coils, and the corresponding charging frequency ranges are different for different coils. By way of example, the WPC coil corresponds to a charging frequency in the range 125kHz to 145kHz, and thus the charging device may determine the first charging frequency in the range 125kHz to 145 kHz.
In the embodiment of the application, the charging device determines the first charging frequency according to the first message, or adjusts the charging frequency from the second charging frequency to the third charging frequency according to the first message, then determines the power loss value corresponding to the charging device according to the third charging frequency, determines whether the power loss value is in a preset range, and determines the third charging frequency as the first charging frequency if the power loss value is in the preset range.
If the power loss value is not in the preset range, the third charging frequency is continuously adjusted until the power loss value corresponding to the adjusted third charging frequency is in the preset range, and the adjusted third charging frequency can be determined to be 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.
For example, in a specific adjustment procedure, the second charging frequency may be adjusted stepwise to the first charging frequency each time offset from mkHz, where m is an arbitrary positive number. In addition, each time the second charging frequency deviates, the power loss value corresponding to the third charging frequency after the deviation is calculated, and if the power loss value is within a preset range, the third charging frequency obtained after the deviation can be determined as the first charging frequency. If the power loss value is not in the preset range, which means that the power loss value is larger at this time, the obtained third charging frequency needs to be continuously adjusted until the power loss value corresponding to the adjusted third charging frequency is in the preset range, and the adjusted third charging frequency can be determined as the first charging frequency.
It will be appreciated that the third charging frequency obtained after the deviation may be greater than the second charging frequency or less than the second charging frequency when the deviation is performed, and of course, the adjustment may be performed at intervals, for example, the third charging frequency obtained when the deviation is performed for the first time is greater than the second charging frequency, and the third charging frequency obtained when the deviation is performed for the second time is less than the second charging frequency … ….
For example, if m is 1 and the second charging frequency is 135kHz, the charging frequency will deviate to 136kHz, and the corresponding power loss value at 136kHz is calculated, and if the power loss value is within the preset range, 136kHz may be determined as the first charging frequency. If the power loss value is not in the preset range, continuously adjusting the charging frequency to 137kHz, calculating the power loss value corresponding to 137kHz, and repeating the process until a third charging frequency with the power loss value in the preset range is determined.
For another example, if m is 1 and the second charging frequency is 135kHz, the charging frequency will deviate to 134kHz first, and the corresponding power loss value at 134kHz is calculated, and if the power loss value is within the preset range, 134kHz can be determined as the first charging frequency. If the power loss value is not in the preset range, continuously adjusting the charging frequency to 133kHz, calculating the power loss value corresponding to 133kHz, and repeating the process until a third charging frequency with the power loss value in the preset range is determined.
For another example, if m is 1 and the second charging frequency is 135kHz, the charging frequency will deviate to 136kHz first, and the corresponding power loss value at 136kHz is calculated, and if the power loss value is within the preset range, 136kHz can be determined as the first charging frequency. If the power loss value is not in the preset range, continuously adjusting the charging frequency to 134kHz, calculating the power loss value corresponding to 134kHz, and repeating the process until a third charging frequency with the power loss value in the preset range is determined.
In addition, when the deviation is performed a plurality of times, the frequency value of each deviation may be the same or different. For example, it may deviate from 1kHz each time, or from 1kHz at the first deviation, from 2kHz at the second deviation, and so on.
For example, the second charging frequency may be adjusted to the third charging frequency at one time. For example, the second charging frequency is 135kHz and the third charging frequency is 138kHz, the charging frequency is directly biased toward 138kHz during the bias, and the third charging frequency is determined as the first charging frequency. Wherein the third charging frequency may be empirically predetermined.
Further, the preset range may be set according to experience or actual situations, for example, may be 5W-10W.
In this embodiment, when the charging frequency is adjusted, it is required to ensure that the power loss value corresponding to the adjusted charging frequency is within a preset range, so that the power loss value can be ensured to be converted into heat energy, so as to heat the electronic device, and the phenomenon that the charging efficiency is reduced due to excessive power loss values can be avoided.
In one 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, the receiving power of the electronic device may be obtained, and then the corresponding power loss value of the charging device may be determined according to the transmitting power and the receiving power.
Specifically, after the charging device obtains the transmitting power and the receiving power, the charging device determines a difference value between the transmitting power and the receiving power as a power loss value. And after the electronic equipment determines the receiving power according to the third charging frequency, the receiving power of the electronic equipment is sent to the charging equipment.
For example, when the third charging frequency is 138kHz, the transmitting power of the corresponding charging device is 40W, and the receiving power of the electronic device is 30W, the power loss value is 10W, and is in the preset range of 5-10W of the power loss, where the third charging frequency corresponding to the power loss may be determined as the first charging frequency.
In this embodiment, the charging device may determine a power loss value corresponding to the charging device according to the obtained transmit power and the received power, so that the accuracy of the determined power loss value may be higher.
In one possible implementation manner, the IC of the charging device may adjust the magnitude of the transmitting power according to the third charging frequency, and when the charging device receives the first message, the charging device may appropriately increase the transmitting power within a preset range to increase the power loss value, so that more power loss value may be converted into heat energy to accelerate heating of the battery of the electronic device, thereby improving the heating speed of the battery and further improving the charging efficiency of the electronic device at low temperature.
Step 404: the charging device adjusts a charging frequency employed to charge the electronic device from the second charging frequency to the first charging frequency to heat a battery of the electronic device.
In this step, since 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 it is desired to heat the battery of the electronic device to reach a temperature range where the battery is operating properly, it is desired that the charging device generate more heat that can be converted from power loss following the principles of conservation of energy. The charging frequency can thus be deviated from the second charging frequency and adjusted 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, a part of power loss is generated, and the part of power loss is converted into heat, so that the battery of the electronic device can be heated.
In one possible implementation manner, in order to timely monitor the temperature of the electronic device and avoid the battery performance from being damaged due to the too high temperature of the battery after heating, during the process that the charging device heats the battery of the electronic device in the above manner, the electronic device may real-time or periodically self-heat. 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 executes preset operation according to the second message so as to stop heating the battery of the electronic device. The preset operation may include any one of the following: and charging the electronic equipment by adopting the second charging frequency, reducing the transmitting power of the charging equipment, or stopping charging the electronic equipment.
Specifically, after the charging device adjusts the adopted charging frequency from the second charging frequency to the first charging frequency, the temperature of the electronic device itself may increase after the battery of the electronic device is heated. In the heating process, the electronic equipment can acquire temperature information in real time or periodically through the temperature sensor, and when the temperature is higher than a fourth preset value, the electronic equipment can send a second message to the charging equipment, so that the charging equipment stops heating the battery of the electronic equipment.
The fourth preset value may be, for example, 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 may operate normally and which does not cause external scalding of the electronic device.
Further, after the charging device receives the second message, a preset operation is performed to stop heating the battery of the electronic device, so that the situation that the electronic device is scalded due to the fact that the battery is too high in temperature and the use experience of a user is affected can be prevented.
In one possible implementation, the charging device may restore the charging frequency from the first charging frequency to the second charging frequency and continue charging the electronic device with the second charging frequency.
For example, in a specific recovery procedure, the first charging frequency may be adjusted gradually towards the second charging frequency at each recovery of mkHz, where m is any positive number. In the process of gradual recovery, the frequency value of each recovery can be the same or different. For example, 1kHz may be restored each time, 1kHz may be restored at the time of the first restoration, 2kHz may be restored at the time of the second restoration, and so on until the second charging frequency is restored, and the second charging frequency may be determined as the charging frequency of the current electronic device after the restoration is completed.
For example, in a specific recovery process, the first charging frequency may be adjusted once to recover to the second charging frequency. For example, the first charging frequency is 138kHz, the second charging frequency is 135kHz, the charging frequency is directly restored to 135kHz in the restoration process, and the second charging frequency is determined as the charging frequency of the current electronic device after the restoration is finished.
Therefore, when the charging equipment continues to charge by adopting the second charging frequency, the power loss value is smaller, and the converted heat energy is less, so that the battery of the electronic equipment is stopped from being heated and charged, and the battery performance of the electronic equipment can be prevented from being damaged due to overhigh battery temperature. In addition, since the charging device is restored to the normal charging mode to charge the electronic device and the temperature of the battery in the electronic device is high at this time, the electric power can be efficiently received, so that the charging efficiency is high.
In another possible implementation, the charging device may reduce the power loss value by reducing the transmit power. Therefore, the charging equipment can reduce the generated heat energy, so that the temperature rise of the battery in the electronic equipment is slowed down, and the performance of the battery can be prevented from being damaged due to the fact that the temperature is too high.
In yet another possible implementation, the charging device may stop heating the battery of the electronic device by turning off the power supply to stop charging the electronic device, so that excessive temperature may be avoided from damaging the battery performance, and power may be saved.
Fig. 5 is a schematic structural diagram of an exemplary battery heating device 10 according to an embodiment of the present application, referring to fig. 5, the battery heating device 10 may include:
a receiving unit 11, configured to receive a first message sent by an electronic device; a processing unit 12, configured to determine, according to the first message, a first charging frequency, where a difference between the first charging frequency and a center frequency of resonance of a coil in the device is greater than a difference between a second charging frequency and a center frequency of resonance of a coil in the device, where the second charging frequency is a frequency at which the device is currently charging the electronic device; the processing unit 12 is further configured to adjust a 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, the processing unit 12 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 in a preset range or not; and if the power loss value is in the preset range, determining the third charging frequency as the first charging frequency.
In a possible implementation, the processing unit 12 is specifically configured to: and if the power loss value is not in the preset range, continuing to adjust the third charging frequency until the power loss value corresponding to the adjusted third charging frequency is in the preset range, and determining the adjusted third charging frequency as the first charging frequency.
In a possible implementation, the processing unit 12 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.
In a possible implementation, the processing unit 12 is specifically configured to: determining a transmit power of the device based on the third charging frequency; acquiring the receiving power of the electronic equipment; and determining a power loss value corresponding to the device according to the transmitting power and the receiving power.
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 is further configured to perform a preset operation according to the second message, so as to stop heating the battery of the electronic device; wherein the preset operation includes one of: charging the electronic device with the second charging frequency; or, reducing the transmitting power of the charging device; or, the charging of the electronic device is stopped.
Fig. 6 is a schematic structural diagram of an exemplary battery heating device 20 according to an embodiment of the present application, referring to fig. 6, the battery heating device 20 may include:
a processing unit 21 for acquiring the temperature of the device; and a sending unit 22, configured to send a first message to the 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 adjust a charging frequency used for charging the device from a second charging frequency to the first charging frequency, so as to heat the battery of the device, where a difference between the first charging frequency and a resonance center frequency of a coil in the charging device is greater than a difference between the second charging frequency and a resonance center frequency of a coil in the charging device, and the second charging frequency is a frequency currently used for charging the device by the charging device.
In a possible implementation, the processing unit 21 is specifically configured to: upon detecting that the device is charged by the charging apparatus, a temperature of the device is obtained.
In a possible implementation, the processing unit 21 is specifically configured to: acquiring the electric quantity of the device; and if the electric quantity of the device is lower than a second preset value, acquiring the temperature of the device.
In a possible implementation, the processing unit 21 is specifically configured to: acquiring the charging speed of the device in a first time period; and if the charging speed of the device in the first time period is smaller than a third preset value, acquiring the temperature of the device.
In a possible implementation manner, the sending unit 22 is further configured to send, to the charging device, a received power of the apparatus, 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 transmission power and the received power of the charging device.
In a possible implementation manner, the sending unit 22 is further configured to send, when the temperature of the apparatus is greater than a fourth preset value, 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 heating the battery of the apparatus; wherein the preset operation includes one of: charging the device with the second charging frequency; or, reducing the transmitting power of the charging device; alternatively, charging of the device is stopped.
Fig. 7 is a schematic structural diagram of an exemplary charging device 30 according to 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 appreciated that the transmitter 31 and the receiver 35 may be one combined module, which may be, for example, a transceiver having the functions of both the transmitter 31 and the receiver 35. The communication bus 34 is used to enable communication connections between the elements. The memory 33 may comprise a high-speed RAM memory or may further comprise a non-volatile storage NVM, such as at least one magnetic disk memory, in which memory 33 various computer programs may be stored for performing various processing functions and implementing the method steps of any of the preceding embodiments. For example, the memory 33 is used to store a program for implementing the above method embodiment, or the respective units of the embodiment shown in fig. 4, and the processor 32 invokes the program to perform the operations of the above method embodiment to implement the functions corresponding to the respective units shown in fig. 4.
Fig. 8 is a schematic structural diagram of another exemplary electronic device 40 according to an embodiment of the present application, and 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 are described in detail in fig. 7, and are not described herein.
Some or all of the above units may also be implemented in the form of an integrated circuit embedded on a certain chip of the charging device and the electronic device. And they may be implemented separately or integrated together. That is, the above units may be configured as one or more integrated circuits implementing the above methods, for example: one or more specific integrated circuits (application specific integrated circuit, ASIC), or one or more digital signal processors (digital singnal processor, DSP), or one or more field programmable gate arrays (field programmable gate array, FPGA), etc.
The present application also provides a battery heating apparatus comprising a processor and a transmission interface, the processor being configured to read program instructions stored in a memory to perform a battery heating method as provided in any of the preceding embodiments.
The application also provides a battery heating system comprising the device shown in fig. 5 and the device shown in fig. 6.
The present application also provides a readable storage medium storing instructions that, when executed, cause a battery heating method as provided in any one of the foregoing embodiments.
The present application also provides a program product comprising a computer program (i.e. executing instructions) stored in a readable storage medium. The computer program may be read from a readable storage medium by at least one processor of the charging device and the electronic device, and execution of the computer program by at least one processor causes the charging device and the electronic device to implement the battery heating method provided in the foregoing various embodiments.
The embodiment of the application also provides a battery heating device, which comprises at least one storage element and at least one processing element, wherein the at least one storage element is used for storing a program, and the program is executed to enable the battery heating device to execute the operations of the charging equipment and the electronic equipment in any embodiment.
According to the battery heating method, the battery heating device and the battery heating equipment, the electronic equipment obtains the temperature of the electronic equipment and sends the first message to the charging equipment when the temperature is smaller than the first preset value, the charging equipment determines the first charging frequency according to the first message, and the charging frequency adopted for charging the electronic equipment is adjusted from the second charging frequency to the first charging frequency. The difference between the first charging frequency and the coil resonance center frequency of the charging device is greater than the difference between the second charging frequency and the coil resonance center frequency of the charging device, and the second charging frequency is the frequency adopted by the charging device to charge the electronic device currently. Since the power loss is generated by shifting the charging frequency from the center frequency of resonance of the coil in the charging device, this portion of the power loss is converted into heat energy to heat the battery of the electronic device. Compared with the prior art, the method can quickly raise the temperature of the battery in the electronic equipment, so that the activity of the battery is improved, and the charging efficiency is improved.
The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (28)
1. A battery heating method, characterized by being applied to a charging device, the method comprising:
receiving a first message sent by electronic equipment when the temperature of the electronic equipment is smaller than a first preset value;
determining a first charging frequency according to the first message, wherein the difference between the first charging frequency and the coil resonance center frequency of the charging equipment is larger than the difference between a second charging frequency and the coil resonance center frequency of the charging equipment, and the second charging frequency is the frequency adopted by the charging equipment for charging the electronic equipment at present;
and adjusting the charging frequency adopted for charging the electronic equipment from the second charging frequency to the first charging frequency so as to heat the battery of the electronic equipment.
2. The method of claim 1, wherein determining a first charging frequency from the first message comprises:
according to the first message, the charging frequency is adjusted from the second charging frequency to a third charging frequency;
determining a power loss value corresponding to the charging equipment according to the third charging frequency;
judging whether the power loss value is in a preset range or not;
and if the power loss value is in the preset range, determining the third charging frequency as the first charging frequency.
3. The method according to claim 2, wherein the method further comprises:
and if the power loss value is not in the preset range, continuing to adjust the third charging frequency until the power loss value corresponding to the adjusted third charging frequency is in the preset range, and determining the adjusted third charging frequency as the first charging frequency.
4. A method according to any one of claims 1 to 3, wherein said determining a first charging frequency from said first message comprises:
determining a charging frequency range corresponding to the charging equipment according to the first message;
The first charging frequency is determined within the charging frequency range.
5. A method according to claim 2 or 3, wherein determining the corresponding power loss value of the charging device according to the third charging frequency comprises:
determining the transmitting power of the charging equipment according to the third charging frequency;
acquiring the receiving power of the electronic equipment;
and determining a power loss value corresponding to the charging equipment according to the transmitting power and the receiving power.
6. A method according to any one of claims 1 to 3, further comprising:
receiving a second message sent by the electronic equipment, wherein the second message is used for indicating that the temperature of the electronic equipment is larger than a fourth preset value;
according to the second message, performing a preset operation to stop heating the battery of the electronic equipment;
wherein, the preset operation comprises one of the following steps:
charging the electronic device with the second charging frequency; or,
reducing the transmitting power of the charging device; or,
and stopping charging the electronic equipment.
7. A battery heating method, characterized by being applied to an electronic device, the method comprising:
Acquiring the temperature of the electronic equipment;
and if the temperature is smaller than a first preset value, sending a first message to a charging device, wherein the first message is used for indicating the charging device to determine a first charging frequency, and adjusting the charging frequency adopted for charging the electronic device from a second charging frequency to the first charging frequency so as to heat a battery of the electronic device, wherein the difference between the first charging frequency and the coil resonance center frequency of the charging device is larger than the difference between the second charging frequency and the coil resonance center frequency of the charging device, and the second charging frequency is the frequency adopted by the charging device for charging the electronic device at present.
8. The method of claim 7, wherein the obtaining the temperature of the electronic device comprises:
and when the electronic equipment is detected to be charged by the charging equipment, acquiring the temperature of the electronic equipment.
9. The method of claim 7, wherein the obtaining the temperature of the electronic device comprises:
acquiring the electric quantity of the electronic equipment;
and if the electric quantity of the electronic equipment is lower than a second preset value, acquiring the temperature of the electronic equipment.
10. The method of claim 7, wherein the obtaining the temperature of the electronic device comprises:
acquiring the charging speed of the electronic equipment in a first time period;
and if the charging speed of the electronic equipment in the first time period is smaller than a third preset value, acquiring the temperature of the electronic equipment.
11. The method according to any one of claims 7 to 10, further comprising:
and sending the receiving power of the electronic equipment to the charging equipment, wherein the receiving power is used for indicating the charging equipment to determine a power loss value corresponding to the charging equipment according to the transmitting power and the receiving power of the charging equipment.
12. The method according to any one of claims 7 to 10, further comprising:
if the temperature of the electronic equipment is greater than a fourth preset value, sending a second message to the charging equipment, wherein the second message is used for indicating the charging equipment to execute preset operation so as to stop heating the battery of the electronic equipment;
wherein, the preset operation comprises one of the following steps:
charging the electronic device with the second charging frequency; or,
Reducing the transmitting power of the charging device; or,
and stopping charging the electronic equipment.
13. A battery heating apparatus, comprising:
the receiving unit is used for receiving a first message sent by the electronic equipment when the temperature of the electronic equipment is smaller than a first preset value;
the processing unit is used for determining a first charging frequency according to the first message, wherein the difference between the first charging frequency and the coil resonance center frequency of the device is larger than the difference between a second charging frequency and the coil resonance center frequency of the device, and the second charging frequency is the frequency adopted by the device for charging the electronic equipment currently;
the processing unit is further configured to adjust a charging frequency used for charging the electronic device from the second charging frequency to the first charging frequency, so as to heat a battery of the electronic device.
14. The apparatus according to claim 13, wherein the processing unit is specifically configured to:
according to the first message, the charging frequency is adjusted from the second charging frequency to a third charging frequency;
determining a power loss value corresponding to the device according to the third charging frequency;
Judging whether the power loss value is in a preset range or not;
and if the power loss value is in the preset range, determining the third charging frequency as the first charging frequency.
15. The apparatus according to claim 14, wherein the processing unit is specifically configured to:
and if the power loss value is not in the preset range, continuing to adjust the third charging frequency until the power loss value corresponding to the adjusted third charging frequency is in the preset range, and determining the adjusted third charging frequency as the first charging frequency.
16. The device according to any one of claims 13 to 15, characterized in that 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.
17. The apparatus according to claim 14 or 15, wherein the processing unit is specifically configured to:
determining a transmit power of the device according to the third charging frequency;
acquiring the receiving power of the electronic equipment;
and determining a power loss value corresponding to the device according to the transmitting power and the receiving power.
18. The apparatus according to any one of claims 13 to 15, 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 that the temperature of the electronic device is greater than a fourth preset value;
the processing unit is further configured to perform a preset operation according to the second message, so as to stop heating the battery of the electronic device;
wherein, the preset operation comprises one of the following steps:
charging the electronic device with the second charging frequency; or,
reducing the transmit power of the device; or,
and stopping charging the electronic equipment.
19. A battery heating apparatus, comprising:
the processing unit is used for acquiring the temperature of the electronic equipment;
and the sending unit is used for sending a first message to the charging equipment when the temperature is smaller than a first preset value, wherein the first message is used for indicating the charging equipment to determine a first charging frequency and adjusting the charging frequency adopted for charging the device from a second charging frequency to the first charging frequency so as to heat the battery of the device, and the difference between the first charging frequency and the whole resonance center frequency in the charging equipment is larger than the difference between the second charging frequency and the whole resonance center frequency in the charging equipment, and the second charging frequency is the frequency adopted by the charging equipment for charging the device currently.
20. The apparatus according to claim 19, wherein the processing unit is specifically configured to:
and acquiring the temperature of the device when detecting that the device is charged by the charging equipment.
21. The apparatus according to claim 19, wherein the processing unit is specifically configured to:
acquiring the electric quantity of the device;
and if the electric quantity of the device is lower than a second preset value, acquiring the temperature of the device.
22. The apparatus according to claim 19, wherein the processing unit is specifically configured to:
acquiring a charging speed of the device in a first time period;
and if the charging speed of the device in the first time period is smaller than a third preset value, acquiring the temperature of the device.
23. The apparatus according to any one of claims 19 to 22, wherein the transmitting unit is further configured to transmit, to the charging device, a received power of the apparatus, where the received power is used to instruct the charging device to determine a power loss value corresponding to the charging device according to a transmission power and the received power of the charging device.
24. The apparatus according to any one of claims 19 to 22, wherein the transmitting unit is further configured to transmit a second message to the charging device when the temperature of the apparatus is greater than a fourth preset value, the second message being configured to instruct the charging device to perform a preset operation to stop heating the battery of the apparatus;
Wherein, the preset operation comprises one of the following steps:
charging the device with the second charging frequency; or,
reducing the transmitting power of the charging device; or,
the charging of the device is stopped.
25. A charging apparatus, characterized by comprising: a processor, a memory for storing instructions, and a transceiver for communicating with other devices, the processor for executing instructions stored in the memory to cause the charging device to perform the battery heating method of any one of claims 1 to 6.
26. An electronic device, comprising: a processor, a memory for storing instructions, and a transceiver for communicating with other devices, the processor for executing instructions stored in the memory to cause the electronic device to perform the battery heating method of any one of claims 7 to 12.
27. A chip comprising a programmable logic circuit and an input interface for acquiring data to be processed, the logic circuit being adapted to perform the battery heating method of any one of claims 1 to 12 on the data to be processed.
28. A computer readable storage medium having instructions stored therein, which when run on a device cause the device to perform the battery heating method of any one of claims 1 to 12.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010940866.6A CN114243162B (en) | 2020-09-09 | 2020-09-09 | Battery heating method, device and equipment |
| PCT/CN2021/113054 WO2022052755A1 (en) | 2020-09-09 | 2021-08-17 | Battery heating method, apparatus and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010940866.6A CN114243162B (en) | 2020-09-09 | 2020-09-09 | Battery heating method, device and equipment |
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| CN114243162A CN114243162A (en) | 2022-03-25 |
| CN114243162B true CN114243162B (en) | 2023-12-08 |
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| CN115360786B (en) * | 2022-08-19 | 2024-07-12 | 乐思灯具（上海）有限公司 | Wireless charging control method and system for lamp and computer equipment |
| CN117154900B (en) * | 2023-10-30 | 2024-04-26 | 荣耀终端有限公司 | Charging control method and electronic equipment |
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| CN114243162A (en) | 2022-03-25 |
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