CN106026231B - Wireless charging method and device - Google Patents
Wireless charging method and device Download PDFInfo
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- CN106026231B CN106026231B CN201610373898.6A CN201610373898A CN106026231B CN 106026231 B CN106026231 B CN 106026231B CN 201610373898 A CN201610373898 A CN 201610373898A CN 106026231 B CN106026231 B CN 106026231B
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- 238000007600 charging Methods 0.000 title claims abstract description 548
- 238000000034 method Methods 0.000 title claims abstract description 66
- 238000004590 computer program Methods 0.000 claims 2
- 230000006870 function Effects 0.000 description 11
- 230000006698 induction Effects 0.000 description 8
- 230000005674 electromagnetic induction Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000010280 constant potential charging Methods 0.000 description 1
- 238000010277 constant-current charging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- H02J7/025—
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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
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- H02J5/005—
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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
- H02J7/007—Regulation of charging or discharging current or voltage
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- 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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- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
the embodiment of the invention discloses a wireless charging method and a wireless charging device; the wireless charging method comprises the steps that a charging signal sent by wireless charging equipment is received, a battery of a terminal is charged according to the charging signal, the current electric quantity parameter of the battery is obtained in the process of charging the battery, then the charging parameter of the battery is obtained according to the electric quantity parameter, and the charging parameter is sent to the wireless charging equipment, so that the wireless charging equipment correspondingly adjusts the charging signal sent by the wireless charging equipment according to the charging parameter; this scheme can charge through wireless battery charging outfit control terminal, for prior art, need not to adjust the signal of charging at the terminal side, has solved the great problem of current wireless charging mode lead to the heat loss, has improved the utilization efficiency of the energy.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a wireless charging method and apparatus.
Background
with the development of the internet and the mobile communication network, and the rapid development of the processing capability and the storage capability of the terminal, a large amount of application programs are rapidly spread and used; the common application program is convenient for the user to work and live, and meanwhile newly developed application programs also enter the daily life of the user, so that the life quality of the user, the frequency of using the terminal and the entertainment feeling in use are improved.
the existing lithium battery charging has different requirements on charging current due to the characteristics of lithium batteries when the electric quantity is different, only trickle charging can be performed at low voltage, heavy current charging can be performed at the constant current charging stage, the current needs to be gradually reduced for charging at the constant voltage charging stage, and the adjustment of the charging current is generally realized through a power supply control module in a terminal.
however, in the wireless charging process, the magnitude of the charging current is generally adjusted on the terminal side according to a constant induced electromotive force, and if the induced electromotive force is too large, the charging current becomes excessive, a large eddy current is generated, the terminal is heated, and the heat loss of the energy source is large.
as can be seen from the above, the conventional wireless charging method has a technical problem of large heat loss.
disclosure of Invention
The embodiment of the invention provides a wireless charging method and device, which can solve the technical problem of large heat loss in the conventional wireless charging mode.
The embodiment of the invention provides a wireless charging method, which comprises the following steps:
Receiving a charging signal sent by wireless charging equipment, and charging a battery of a terminal according to the charging signal;
Acquiring the current electric quantity parameter of the battery in the process of charging the battery;
Acquiring the charging parameters of the battery according to the electric quantity parameters;
And sending the charging parameters to the wireless charging equipment so that the wireless charging equipment correspondingly adjusts the charging signals sent by the wireless charging equipment according to the charging parameters.
the embodiment of the invention also provides another wireless charging method, which comprises the following steps:
Sending the changed charging signal to the terminal;
Receiving a charging parameter returned by the terminal;
And adjusting the change rate of the charging signal according to the charging parameter.
Accordingly, an embodiment of the present invention provides a wireless charging device, including: the device comprises a signal receiving module, a first acquisition module, a second acquisition module and a parameter sending module; wherein,
the signal receiving module is used for receiving a charging signal sent by the wireless charging equipment and charging a battery of the terminal according to the charging signal;
The first obtaining module is used for obtaining the current electric quantity parameter of the battery in the process of charging the battery;
The second obtaining module is used for obtaining the charging parameters of the battery according to the electric quantity parameters;
the parameter sending module is configured to send the charging parameter to the wireless charging device, so that the wireless charging device correspondingly adjusts the charging signal sent by the wireless charging device according to the charging parameter.
An embodiment of the present invention further provides another wireless charging device, including: the device comprises a signal sending module, a parameter receiving module and an adjusting module; wherein,
The signal sending module is used for sending the changed charging signal to the terminal;
The parameter receiving module is used for receiving the charging parameters returned by the terminal;
And the adjusting module is used for adjusting the change rate of the charging signal according to the charging parameter.
The embodiment of the invention provides a wireless charging method and a wireless charging device, wherein the wireless charging method comprises the steps of receiving a charging signal sent by a wireless charging device, charging a battery of a terminal according to the charging signal, acquiring the current electric quantity parameter of the battery in the process of charging the battery, then acquiring the charging parameter of the battery according to the electric quantity parameter, and sending the charging parameter to the wireless charging device, so that the wireless charging device correspondingly adjusts the charging signal sent by the wireless charging device according to the charging parameter; this scheme can charge through wireless battery charging outfit control terminal, for prior art, need not to adjust the signal of charging at the terminal side, has solved the great problem of current wireless charging mode lead to the heat loss, has improved the utilization efficiency of the energy.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flowchart of a wireless charging method according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of a wireless charging method according to a second embodiment of the present invention;
fig. 3a is a schematic diagram of a wireless charging system according to a third embodiment of the present invention;
fig. 3b is a schematic flowchart of a wireless charging method according to a third embodiment of the present invention;
Fig. 4 is a schematic structural diagram of a wireless charging device according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a wireless charging device according to a fifth embodiment of the present invention.
Detailed Description
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a wireless charging method and device. The details will be described below separately.
The first embodiment,
The embodiment will be described from the perspective of a wireless charging device, which may be specifically integrated in a terminal, where the terminal may be a smart phone, a tablet computer, or the like.
a wireless charging method, comprising: receiving a charging signal sent by wireless charging equipment, and charging a battery of the terminal according to the charging signal; acquiring the current electric quantity parameter of the battery in the process of charging the battery; acquiring charging parameters of the battery according to the electric quantity parameters; and sending the charging parameters to the wireless charging equipment so that the wireless charging equipment can correspondingly adjust the charging signals sent by the wireless charging equipment according to the charging parameters.
as shown in fig. 1, the specific process of the wireless charging method may be as follows:
101. And receiving a charging signal sent by the wireless charging equipment, and charging the battery of the terminal according to the charging signal.
Specifically, the charging signal may carry energy that enables the terminal to charge the battery, for example, the charging signal may be an electromagnetic wave, and the terminal may receive the charging signal sent by the wireless charging device through electromagnetic induction, magnetic field resonance, or the like. In addition, other forms of wireless charging schemes can be included, such as microwave phase control, laser, ultra-low acoustic wave, low thermal infrared, and the like.
In a specific implementation process, when the battery is charged according to the charging signal immediately after the charging signal is received, the battery may be charged with a preset current within a preset time period, where the preset current may be a current parameter set by a manufacturer according to chemical characteristics, volt-ampere characteristics, and the like of the battery, or a current parameter obtained through a plurality of tests by a person skilled in the art.
in this embodiment of the present invention, before receiving a charging signal sent by a wireless charging device, a wireless connection needs to be established with the wireless charging device, so as to prepare for information transfer in a charging process at a later stage, that is, before receiving the charging signal sent by the wireless charging device, the method may further include the following steps:
receiving a connection request sent by wireless charging equipment;
And establishing a wireless link with the wireless charging device according to the connection request so as to send the charging parameters to the wireless charging device through the wireless link.
specifically, when the wireless function of the terminal is turned on, a search instruction may be issued, the terminal may search for a surrounding wireless charging signal according to the search instruction, after the wireless charging signal is searched, determine the wireless charging device corresponding to the charging signal, and may receive a connection request sent by the wireless charging device, and the terminal may establish a wireless connection, such as a WiFi connection, a bluetooth connection, and the like, with the wireless charging device according to the connection request to form a wireless link.
in practical applications, a control may be set at the terminal for turning on or turning off the wireless charging function of the terminal, for example, the control may be a switch button, the right slide may turn on the wireless charging function, and the left slide may turn off the wireless charging function.
102. And acquiring the current electric quantity parameter of the battery in the process of charging the battery.
The parameter of the electric quantity of the battery may be the electric quantity of the battery, or may be parameters such as voltage at two ends of the battery, internal resistance of the battery, and the like.
specifically, in order to facilitate real-time monitoring of the electric quantity parameter, the current electric quantity parameter of the battery may be continuously obtained during the charging process, and the obtained electric quantity parameter may be stored, for example, the current electric quantity parameter and the current time point may be recorded in a form of a list.
preferably, in order to reduce the power consumption of the terminal, the current power parameter of the battery may be obtained every preset time period, where the preset time period may be set by a user, for example, 1s, 1min, and the like.
103. And acquiring the charging parameters of the battery according to the electric quantity parameters.
Specifically, the charging parameter may be a charging current, a charging voltage, and the like, which are optimal for a charging index during the charging process of the terminal battery, for example, the charging index may be a charging time, the charging parameter may be a current that minimizes the charging time, for example, the charging index may be a heat loss, the charging parameter may be a current that minimizes the heat loss, and the charging parameter may be an optimal charging parameter for a combination of multiple charging indexes, such as the charging time, the heat loss, and other charging indexes.
In the embodiment of the present invention, there may be multiple ways of obtaining the charging parameter of the battery according to the electric quantity parameter, and optionally, the corresponding charging parameter may be obtained according to the current charging state of the battery, that is, the specific flow of the step "obtaining the charging parameter of the battery according to the electric quantity parameter" may be as follows:
Determining the current charging stage of the battery according to the electric quantity parameter;
And acquiring a preset charging parameter corresponding to the charging stage, and acquiring the charging parameter of the battery according to the preset charging parameter.
specifically, different charging stages can be set for the battery in advance according to the electric quantity parameter of the battery, assuming that the electric quantity parameter is the electric quantity of the battery, if the battery is fully charged to 100% of the electric quantity, the electric quantity can be divided into a plurality of electric quantity sections in a percentage manner, wherein the electric quantity sections correspond to the charging stages one by one, for example, the electric quantity section of 0% -20% corresponds to a first charging stage, the electric quantity section of 20% -80% corresponds to a second charging stage, and the electric quantity section of 80% -100% corresponds to a third charging stage; that is, the specific flow of the step "determining the current charging stage of the battery according to the electric quantity parameter" may be as follows:
acquiring the current electric quantity of the battery according to the electric quantity parameter;
acquiring the current capacity percentage of the battery based on the capacity and the total capacity of the battery;
And determining the current charging stage of the battery according to the electric quantity percentage and a preset electric quantity interval.
in a specific implementation, the percentage of the electric quantity may be converted based on the electric quantity of the charged portion and the total capacity of the battery, or the percentage of the electric quantity may be converted based on the remaining, unfilled electric quantity and the total capacity of the battery; each charging stage corresponds to at least one preset charging parameter, such as 1mA, 1A, and the like, and the preset charging parameter can be directly used as a charging parameter, or the corresponding charging parameter can be obtained according to the preset charging parameter and in combination with other factors affecting the charging parameter.
alternatively, the charging parameter may be directly calculated according to the acquired electric quantity parameter, that is, the specific process of "acquiring the charging parameter of the battery according to the electric quantity parameter" may be: and acquiring the charging parameters of the battery according to the electric quantity parameters and a preset algorithm.
Assuming that the charging parameter is a charging current, the current internal resistance of the battery can be obtained according to the electric quantity parameter, the relation between the actual power and the current value can be obtained according to the internal resistance and the voltage in the charging circuit, and the corresponding current in the charging circuit can be selected as the charging current when the actual power is maximum so as to obtain the charging parameter of the battery.
104. And sending the charging parameters to the wireless charging equipment so that the wireless charging equipment can correspondingly adjust the charging signals sent by the wireless charging equipment according to the charging parameters.
Specifically, the wireless charging device can perform primary communication with the wireless charging device at preset time intervals (for example, 10s), and transmit the acquired charging parameters to the wireless charging device through WiFi or bluetooth and other means, so that the wireless charging device performs corresponding adjustment on the charging signal transmitted by the wireless charging device according to the charging parameters, and then controls the terminal to perform charging.
Preferably, in order to prevent the battery from being overcharged, when the electric quantity of the battery reaches a certain threshold, the charging of the battery may be stopped, that is, after the electric quantity parameter of the terminal is acquired, before the charging parameter of the battery is acquired according to the electric quantity parameter, the method may further include:
Acquiring a corresponding parameter value according to the electric quantity parameter;
judging whether the parameter value is larger than a preset threshold value or not;
If so, disconnecting the wireless link with the wireless charging equipment;
If not, the step of obtaining the charging parameters of the battery according to the electric quantity parameters is executed.
The parameter value may be an electric quantity value of the battery or a voltage value at two ends of the battery, and the preset threshold value may be an electric quantity value or a voltage value when the battery is fully charged; when the parameter value is judged to be larger than the preset threshold value, the battery can be considered to be fully charged, and at the moment, the terminal can disconnect the wireless link established with the wireless charging equipment to stop charging the battery.
as can be seen from the above, the embodiment of the present invention provides a wireless charging method, in which a charging signal sent by a wireless charging device is received, a battery of a terminal is charged according to the charging signal, during a process of charging the battery, a current electric quantity parameter of the battery is obtained, then, a charging parameter of the battery is obtained according to the electric quantity parameter, and the charging parameter is sent to the wireless charging device, so that the wireless charging device correspondingly adjusts the charging signal sent by the wireless charging device according to the charging parameter; this scheme can charge through wireless battery charging outfit control terminal, for prior art, need not to adjust the signal of charging at the terminal side, has solved the current wireless mode of charging and has leaded to the great problem of heat loss, has improved the utilization efficiency of the energy, has prolonged the life-span of battery simultaneously.
Example II,
The present embodiment will be described from the perspective of a wireless charging apparatus, which may be specifically integrated in a wireless charging device, which may be specifically a wireless adapter.
a wireless charging method, comprising: sending the changed charging signal to the terminal; receiving a charging parameter returned by the terminal; and adjusting the change rate of the charging signal according to the charging parameter.
As shown in fig. 2, the specific process of the wireless charging method may be as follows:
201. The varying charging signal is transmitted to the terminal.
specifically, the charging signal may carry electric energy or may convert other forms of energy into electric energy, for example, the charging signal may be electromagnetic wave, and the varying electromagnetic wave may be transmitted to the terminal through electromagnetic induction, magnetic field resonance, or the like, so as to generate induced electromotive force to charge the terminal to provide charging current for charging the battery.
202. And receiving the charging parameters returned by the terminal.
specifically, there may be multiple ways to receive the charging parameter, for example, a timing device may be provided to receive the charging parameter returned by the terminal every preset time period, or the charging parameter is returned at a terminal side at a fixed time, and the wireless charging device receives the charging parameter in real time.
In a specific implementation process, before sending a changed charging signal to a terminal, a wireless connection needs to be established with the terminal to prepare for later information transfer, such as WiFi connection, bluetooth connection, and the like, that is, before the step "sending a charging signal to a terminal", the method may further include the following steps:
Sending a connection request to a terminal;
Receiving connection information returned by the terminal according to the connection request;
And establishing a wireless link with the terminal according to the connection information so as to receive the charging parameters returned by the terminal through the wireless link.
203. and adjusting the change rate of the charging signal according to the charging parameter.
in practical application, the induced electromotive force generated by the magnetic field can be changed only by changing the change rate of the magnetic field, so as to control the terminal to charge. From the faraday electromagnetic induction principle, the magnetic flux Φ — n — B — Scos θ and the induced electromotive force E — Δ Φ/Δ t are known, and therefore, the rate of change of the magnetic field can be adjusted by changing the magnetic induction B and/or the area of the magnetic field cut.
in the embodiment of the present invention, there may be a plurality of influencing factors of the charging signal, and there may also be a plurality of ways to adjust the charging signal according to the charging parameter, for example, the step "sending the changed charging signal to the terminal" may specifically be: sending a changed charging signal to the terminal according to the electric signal; the electrical signal may specifically be an electrical signal that generates a charging magnetic field, for example, the electrical signal may be an electrical signal in a magnetic field transmitting circuit, such as a voltage or a current.
The specific flow of the step "adjusting the change rate of the charging signal according to the charging parameter" may be as follows:
The electrical signal is adjusted according to the charging parameter to adjust a rate of change of the charging signal.
Specifically, if the charging signal is an electromagnetic wave and the electrical signal is a current, the magnetic induction intensity generated by the induction coil can be adjusted by changing the current in the magnetic field transmitting circuit, so that the change rate of the magnetic induction intensity is changed to change the change rate of the electromagnetic wave, thereby adjusting the magnitude of the induced electromotive force and achieving the purpose of controlling the charging current of the battery.
As can be seen from the above, the embodiment of the present invention provides a wireless charging method, in which a charging signal that changes is sent to a terminal, then, a charging parameter returned by the terminal is received, and a change rate of the charging signal is adjusted according to the charging parameter; this scheme can change the rate of change in magnetic field through adjusting the signal of charging, and then control terminal charges, for prior art, can adjust the signal of charging at wireless charging equipment side, has solved the great problem of current wireless charging mode lead to the heat loss, has improved the utilization efficiency of the energy.
example III,
the method according to the embodiments one and two will be described in further detail below by way of example.
In the present embodiment, as shown in fig. 3a, the mobile terminal 31 is taken as a terminal, the wireless charging device is taken as a wireless adapter 32, and the mobile terminal 31 is charged by the wireless adapter 32.
as shown in fig. 3b, a specific process of the wireless charging method may be as follows:
301. The mobile terminal 31 starts the wireless charging function and establishes wireless connection with the wireless adapter 32.
Specifically, a control may be provided in the mobile terminal 31 for turning on or turning off the wireless charging function of the terminal, for example, the control may be a switch button, and the right slide may turn on the wireless charging function, and the left slide may turn off the wireless charging function and turn on the wireless charging function.
In practical applications, after the mobile terminal 31 starts the wireless charging function, the charging signal may be searched, if the charging signal is detected, a connection request may be sent to the wireless adapter 32, and the mobile terminal 31 may establish a wireless connection, such as a bluetooth connection, a WiFi connection, and the like, with the wireless adapter 32 corresponding to the charging signal according to the connection request.
302. the mobile terminal 31 receives the charging signal transmitted from the wireless adapter 32, and charges the battery in accordance with the charging signal.
Specifically, the charging signal may carry energy for the mobile terminal 31 to charge the battery, for example, the charging signal may be electromagnetic wave, and the mobile terminal 31 may receive the charging signal sent by the wireless adapter 32 through electromagnetic induction, magnetic field resonance, or the like, and after the mobile terminal 31 receives the charging signal, the internal induction coil may generate induced electromotive force, and may generate induced current in the charging circuit according to the induced electromotive force, so as to charge the battery.
303. The mobile terminal 31 acquires the current electric quantity of the battery in the process of charging the battery, and judges whether the electric quantity reaches the preset electric quantity; if so, the process ends, otherwise, go to step 305.
Specifically, in order to facilitate real-time monitoring of the electric quantity parameter, the current electric quantity parameter of the battery may be continuously obtained during the charging process, and the obtained electric quantity parameter may be stored, for example, the current electric quantity parameter and the current time point may be recorded in a form of a list.
Preferably, in order to reduce the power consumption of the mobile terminal 31, the current power parameter of the battery may be obtained every preset time period, where the preset time period may be set by a user, such as 1s, 1min, and the like.
in the embodiment of the present invention, when the power amount is determined to reach the preset power amount, the battery may be stopped to be charged, and the manner of stopping charging the battery may be various, for example, the wireless connection between the mobile terminal 31 and the wireless adapter 32 may be disconnected, or the charging circuit in the mobile terminal 31 may be disconnected.
304. the mobile terminal 31 acquires a charging current value of the battery according to the amount of power and transmits the charging current value to the wireless adapter 32.
specifically, the charging current value may be an optimal charging current for a charging index during charging of the battery, for example, the charging index may be a charging time, and the charging parameter may be a current that minimizes the charging time, for example, the charging index may be a heat loss, and the charging parameter may be a current that minimizes the heat loss, and the charging parameter may be an optimal charging current value for a combination of multiple charging indexes, such as the charging time, the heat loss, and other charging indexes.
in the embodiment of the present invention, there are various ways to obtain the charging current value of the battery according to the electric quantity, for example, a corresponding charging current value may be obtained according to the current charging state of the battery, that is, a specific flow of the step "obtaining the charging current value of the battery according to the electric quantity" may be as follows:
determining the current charging stage of the battery according to the electric quantity;
And acquiring a preset current value corresponding to the charging stage, and acquiring the charging current value of the battery according to the preset current value.
Specifically, different charging stages can be set for the battery in advance according to the electric quantity of the battery, assuming that the battery is fully charged with 100% of electric quantity, the electric quantity can be divided in a percentage manner to obtain a plurality of electric quantity intervals, the electric quantity intervals correspond to the charging stages one to one, for example, the electric quantity interval of 0% -20% corresponds to a first charging stage, the electric quantity interval of 20% -80% corresponds to a second charging stage, the electric quantity interval of 80% -100% corresponds to a third charging stage, and each charging stage corresponds to at least one charging current value.
in a specific implementation process, a certain preset current value at the stage can be directly used as a charging current value, and a corresponding charging current value can be obtained according to the preset current value in combination with other factors influencing the charging current value.
305. The wireless adapter 32 adjusts the transmitted charging signal according to the charging current value.
in the embodiment of the present invention, there may be a plurality of influencing factors of the charging signal, and there may also be a plurality of ways to adjust the charging signal according to the charging current value, for example, the wireless adapter 32 may adjust the current of the magnetic field transmitting circuit according to the charging current value, and change the magnetic induction intensity generated by the induction coil in the current-adjusting magnetic field transmitting circuit, so as to change the change rate of the magnetic induction intensity, so as to change the change rate of the magnetic field.
As can be seen from the above, the embodiment of the present invention provides a wireless charging method, a wireless charging function is started through a mobile terminal 31, a wireless connection is established with a wireless adapter 32, then, the mobile terminal 31 receives a charging signal sent by the wireless adapter 32, a battery is charged according to the charging signal, the mobile terminal 31 obtains the current electric quantity of the battery in the process of charging the battery, and determines whether the electric quantity reaches a preset electric quantity, when it is determined that the electric quantity does not reach the preset electric quantity, the mobile terminal 31 obtains the charging current value of the battery according to the electric quantity, and sends the charging current value to the wireless adapter 32, and the wireless adapter 32 adjusts the sent charging signal according to the charging current value; this scheme can charge through wireless battery charging outfit control terminal, for prior art, need not to adjust the signal of charging at the terminal side, has solved the current wireless mode of charging and has leaded to the great problem of heat loss, has improved the utilization efficiency of the energy, has prolonged the life-span of terminal battery.
example four,
in order to better implement the above method, an embodiment of the present invention further provides a wireless charging device, where the wireless charging device may be integrated in a terminal, and the terminal may specifically include a mobile phone, a tablet computer, a notebook computer, and other devices. As shown in fig. 4, the wireless charging apparatus may include a signal receiving module 401, a first obtaining module 402, a second obtaining module 403, and a parameter sending module 404, as follows:
the signal receiving module 401 is configured to receive a charging signal sent by the wireless charging device, and charge a battery of the terminal according to the charging signal;
The first obtaining module 402 is configured to obtain a current electric quantity parameter of the battery during a process of charging the battery;
The second obtaining module 403, configured to obtain a charging parameter of the battery according to the electric quantity parameter;
the parameter sending module 404 is configured to send the charging parameter to the wireless charging device, so that the wireless charging device correspondingly adjusts the charging signal sent by the wireless charging device according to the charging parameter.
preferably, the second obtaining module is specifically configured to determine a current charging stage of the battery according to the electric quantity parameter; and acquiring a preset charging parameter corresponding to the charging stage as the charging parameter of the battery.
As can be seen from the above, the embodiment of the present invention provides a wireless charging apparatus, where a signal receiving module 401 receives a charging signal sent by a wireless charging device, and charges a battery of a terminal according to the charging signal, in a process of charging the battery, a first obtaining module 402 obtains a current electric quantity parameter of the battery, a second obtaining module 403 obtains a charging parameter of the battery according to the electric quantity parameter, and a parameter sending module 404 sends the charging parameter to the wireless charging device, so that the wireless charging device correspondingly adjusts the charging signal sent by the wireless charging device according to the charging parameter; this scheme can charge through wireless battery charging outfit control terminal, for prior art, need not to adjust the signal of charging at the terminal side, has solved the great problem of current wireless charging mode lead to the heat loss, has improved the utilization efficiency of the energy.
Example V,
In order to better implement the above method, the embodiment of the present invention further provides another wireless charging apparatus, which may be specifically integrated in a wireless charging device. As shown in fig. 5, the wireless charging apparatus may include a signal transmitting module 501, a parameter receiving module 502, and an adjusting module 503; wherein,
The signal sending module 501 is configured to send a changed charging signal to a terminal;
the parameter receiving module 502 is configured to receive a charging parameter returned by the terminal;
The adjusting module 503 is configured to adjust a change rate of the charging signal according to the charging parameter.
Preferably, the signal transmitting module 501 may be specifically configured to send a varying charging signal to the terminal according to the electrical signal;
The adjusting module 503 may be specifically configured to adjust the electrical signal according to the charging parameter, so as to adjust a change rate of the charging signal.
As can be seen from the above, the embodiment of the present invention provides a wireless charging device, where a signal sending module 501 sends a changing charging signal to a terminal, a parameter receiving module 502 receives a charging parameter returned by the terminal, and an adjusting module 503 adjusts a changing rate of the charging signal according to the charging parameter; this scheme can change the rate of change in magnetic field through adjusting the signal of charging, and then control terminal charges, for prior art, can adjust the signal of charging at wireless charging equipment side, has solved the great problem of current wireless charging mode lead to the heat loss, has improved the utilization efficiency of the energy.
those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.
The wireless charging method and the wireless charging device provided by the embodiment of the invention are described in detail, and the principle and the embodiment of the invention are explained by specific examples of application programs in the description, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application program, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (9)
1. A wireless charging method is applied to a terminal and is characterized by comprising the following steps:
Receiving a charging signal sent by wireless charging equipment, and charging a battery of a terminal according to the charging signal;
In the process of charging the battery, acquiring a current electric quantity parameter of the battery, determining a current charging stage of the battery from three charging stages according to the electric quantity parameter, and acquiring preset charging currents corresponding to the charging stages, wherein the preset charging currents corresponding to different charging stages are different, and each charging stage corresponds to at least one preset charging current;
based on a preset algorithm, acquiring the charging parameters of the battery according to the acquired preset charging current and a preset charging index, wherein the preset algorithm comprises the following steps: the relationship between the actual charging power and the charging current when charging the battery specifically is as follows: if the preset charging index is charging time, the charging parameter is a preset charging current which is in the at least one preset charging current and enables the charging time to be shortest; if the preset charging index is heat loss, the charging parameter is a preset charging current which enables the heat loss to be minimum in the at least one preset charging current;
And sending the charging parameters to the wireless charging equipment so that the wireless charging equipment correspondingly adjusts the charging signals sent by the wireless charging equipment according to the charging parameters.
2. The wireless charging method of claim 1, wherein prior to obtaining the charging signal transmitted by the wireless charging device, the method further comprises:
Receiving a connection request sent by the wireless charging equipment;
and establishing a wireless link with the wireless charging equipment according to the connection request so as to send the charging parameters to the wireless charging equipment through the wireless link.
3. The wireless charging method according to claim 2, wherein after acquiring the charge parameter of the terminal, before acquiring the charging parameter of the battery according to the charge parameter, the method further comprises:
Acquiring a corresponding parameter value according to the electric quantity parameter;
Judging whether the parameter value is larger than a preset threshold value or not;
If so, disconnecting a wireless link with the wireless charging equipment;
And if not, executing the step of acquiring the charging parameters of the battery according to the electric quantity parameters.
4. a wireless charging method is applied to wireless charging equipment and is characterized by comprising the following steps:
sending the changed charging signal to the terminal;
receiving a charging parameter returned by the terminal, wherein the charging parameter is as follows: based on a preset algorithm, calculating charging current according to at least one acquired preset charging current and a preset charging index, wherein the at least one charging current is determined based on a charging stage where the battery is currently located, each charging stage corresponds to at least one preset charging current, the charging stage where the battery is currently located is determined from three charging stages based on an electric quantity parameter of the current battery, and the preset algorithm comprises the following steps: the relationship between the actual charging power and the charging current when the battery is charged specifically is as follows: if the preset charging index is charging time, the charging parameter is a preset charging current which is in the at least one preset charging current and enables the charging time to be shortest; if the preset charging index is heat loss, the charging parameter is a preset charging current which enables the heat loss to be minimum in the at least one preset charging current;
And adjusting the change rate of the charging signal according to the charging parameter.
5. The wireless charging method of claim 4, wherein the step of sending the varying charging signal to the terminal specifically comprises:
sending a changed charging signal to the terminal according to the electric signal;
the step of adjusting the change rate of the charging signal according to the charging parameter specifically includes:
And adjusting the electrical signal according to the charging parameter to adjust the change rate of the charging signal.
6. a wireless charging device is applied to a terminal and is characterized by comprising: the device comprises a signal receiving module, a first acquisition module, a second acquisition module and a parameter sending module;
the signal receiving module is used for receiving a charging signal sent by the wireless charging equipment and charging a battery of the terminal according to the charging signal;
the first acquisition module is used for acquiring the current electric quantity parameter of the battery in the process of charging the battery, determining the current charging stage of the battery from three charging stages according to the electric quantity parameter, and acquiring the preset charging current corresponding to the charging stage, wherein the preset charging currents corresponding to different charging stages are different, and each charging stage corresponds to at least one preset charging current;
The second obtaining module is configured to obtain a charging parameter of the battery according to the obtained preset charging current and a preset charging index based on a preset algorithm, where the preset algorithm includes: the relationship between the actual charging power and the charging current when charging the battery specifically is as follows: if the preset charging index is charging time, the charging parameter is a preset charging current which is in the at least one preset charging current and enables the charging time to be shortest; if the preset charging index is heat loss, the charging parameter is a preset charging current which enables the heat loss to be minimum in the at least one preset charging current;
The parameter sending module is configured to send the charging parameter to the wireless charging device, so that the wireless charging device correspondingly adjusts the charging signal sent by the wireless charging device according to the charging parameter.
7. A wireless charging device is applied to wireless charging equipment, and is characterized by comprising: the device comprises a signal sending module, a parameter receiving module and an adjusting module;
The signal sending module is used for sending the changed charging signal to the terminal;
The parameter receiving module is configured to receive a charging parameter returned by the terminal, where the charging parameter is: based on a preset algorithm, calculating charging current according to at least one acquired preset charging current and a preset charging index, wherein the at least one charging current is determined based on a charging stage where the battery is currently located, each charging stage corresponds to at least one preset charging current, the charging stage where the battery is currently located is determined from three charging stages based on an electric quantity parameter of the current battery, and the preset algorithm comprises the following steps: the relationship between the actual charging power and the charging current when the battery is charged specifically is as follows: if the preset charging index is charging time, the charging parameter is a preset charging current which is in the at least one preset charging current and enables the charging time to be shortest; if the preset charging index is heat loss, the charging parameter is a preset charging current which enables the heat loss to be minimum in the at least one preset charging current;
And the adjusting module is used for adjusting the change rate of the charging signal according to the charging parameter.
8. the charging device according to claim 7, wherein the signal sending module is specifically configured to send a varying charging signal to the terminal according to the electrical signal;
the adjusting module is specifically configured to adjust the electrical signal according to the charging parameter, so as to adjust a change rate of the charging signal.
9. a computer-readable storage medium storing a computer program, wherein the computer program, when run on a computer, causes the computer to perform the method of any one of claims 1-3 or 4-5.
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| CN106532989A (en) * | 2016-12-26 | 2017-03-22 | 宇龙计算机通信科技(深圳)有限公司 | Wireless charging control circuit, wireless charging control method and electronic device |
| CN106684984A (en) * | 2016-12-26 | 2017-05-17 | 广东欧珀移动通信有限公司 | Wireless charging method, wireless charging device and wireless charging system |
| CN106602654B (en) * | 2016-12-26 | 2020-03-24 | Oppo广东移动通信有限公司 | Charging authentication method, related equipment and system |
| CN106655381B (en) * | 2016-12-26 | 2020-07-14 | Oppo广东移动通信有限公司 | Wireless charging method and device |
| CN106786897B (en) * | 2016-12-26 | 2019-09-06 | Oppo广东移动通信有限公司 | Charging method, mobile terminal and charging equipment |
| CN110214402B (en) | 2017-04-07 | 2023-12-26 | Oppo广东移动通信有限公司 | Wireless charging system, device and method and equipment to be charged |
| WO2018184230A1 (en) * | 2017-04-07 | 2018-10-11 | Oppo广东移动通信有限公司 | Wireless charging system, apparatus and method, and device to be charged |
| CN107453489A (en) * | 2017-08-31 | 2017-12-08 | 努比亚技术有限公司 | Wireless charging electroplax and its wireless charging method, computer-readable recording medium |
| JP7288038B2 (en) * | 2018-09-30 | 2023-06-06 | オッポ広東移動通信有限公司 | ADAPTER OUTPUT STATE TEST METHOD, ADAPTER OUTPUT STATE TEST SYSTEM AND COMPUTER STORAGE MEDIUM |
| CN112823459B (en) * | 2018-12-21 | 2023-11-24 | Oppo广东移动通信有限公司 | Charging control method, device to be charged, wireless charging device and storage medium |
| JP7399170B2 (en) * | 2019-01-07 | 2023-12-15 | ユーシーエル ビジネス リミテッド | How to enhance electrochemical cell performance |
| US20220407357A1 (en) * | 2019-11-07 | 2022-12-22 | Beijing Xiaomi Mobile Software Co., Ltd. | Charging power control method and apparatus, and readable storage medium |
| CN116545077B (en) * | 2023-07-06 | 2023-12-22 | 深圳市磁迹科技有限公司 | Wireless charging method, device, equipment and storage medium based on artificial intelligence |
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