CN107195997B - A kind of charging method, device and mobile terminal - Google Patents
A kind of charging method, device and mobile terminal Download PDFInfo
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- CN107195997B CN107195997B CN201710465401.8A CN201710465401A CN107195997B CN 107195997 B CN107195997 B CN 107195997B CN 201710465401 A CN201710465401 A CN 201710465401A CN 107195997 B CN107195997 B CN 107195997B
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- 238000007600 charging Methods 0.000 title claims abstract description 276
- 238000000034 method Methods 0.000 title claims abstract description 60
- 230000003247 decreasing effect Effects 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 47
- 230000008569 process Effects 0.000 description 19
- 238000005516 engineering process Methods 0.000 description 5
- 238000010277 constant-current charging Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010280 constant potential charging Methods 0.000 description 2
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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
- H01M10/42—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
- H01M10/448—End of discharge regulating measures
-
- H02J7/0086—
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
-
- 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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- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of charging methods, comprising: uses constant charge current for battery charging；When battery core voltage reaches first voltage threshold value, use constant charge voltage stage by stage for battery charging, wherein the charging voltage in each stage is successively successively decreased；When charging voltage and battery expire piezoelectric voltage it is equal when, stop charging.In addition, the invention also discloses the charging units that can implement the above method, and the mobile terminal including above-mentioned charging unit.According to the technique and scheme of the present invention, the efficient charging of battery may be implemented.
Description
Technical field
The present invention relates to battery boosting technology field more particularly to a kind of charging methods, device and mobile terminal.
Background technique
With the development of development of Mobile Internet technology, the mobile terminal devices such as smart phone, tablet computer, wearable device are got over
Come more universal.
Current mobile terminal mainly uses rechargeable battery, such as lithium battery to power.Existing battery charging schedule
It is constant current-constant-voltage charge, i.e., constant current charging is used in the early stage, after detecting that cell voltage reaches given voltage, with perseverance
Constant voltage continues to charge, and terminates to charge when charging current is reduced to given value.Constant-current charge can accelerate charging rate, shorten
Charging time；Constant-voltage charge is carried out after reaching given voltage, can be overshooted to avoid battery.But battery has internal resistance, charges back
There are impedance loops in road, and the two can shorten the duration of constant-current phase, to influence charging rate, increase and entirely charge
The time of journey.In addition, if charging voltage setting is larger, the voltage loss on the internal resistance of cell is larger in constant voltage charging phase,
Battery can generate " empty electricity " phenomenon, although that is, apparently battery has been filled with electricity, it is not filled actually.Such case
Under, after stopping charging, the electricity meeting rapid decrease of battery reduces the cruise duration of mobile device.
Accordingly, it is desirable to provide it is a kind of can quick charge, can guarantee the practical charging method being fully charged of battery again.
Summary of the invention
For this purpose, the present invention provides a kind of charging method, device and mobile terminal, with solve or at least alleviate it is existing above
Problem.
According to an aspect of the present invention, a kind of charging method is provided, comprising: constant charge current is used to fill for battery
Electricity；When battery core voltage reaches first voltage threshold value, use constant charge voltage stage by stage for battery charging, wherein each rank
The charging voltage of section is successively successively decreased；When charging voltage and battery expire piezoelectric voltage it is equal when, stop charging.
Optionally, in charging method according to the present invention, maximum of the constant charge current for battery charging when is used to fill
Piezoelectric voltage is determined according to following formula:
Vchgm=V2+a
Wherein, VchgmFor maximum charging voltage, V2Reach charging voltage when first voltage threshold value, a for battery core voltage
One constant.
Optionally, in charging method according to the present invention, a=100mV.
Optionally, in charging method according to the present invention, the quantity in stage is according to any next true in following formula
It is fixed:
Wherein, n is the quantity in stage, VopExpire piezoelectric voltage, V for battery1For first voltage threshold value, b is second constant,
Expression rounds up,It indicates to be rounded downwards.
Optionally, in charging method according to the present invention, the charging voltage in each stage is determined according to following formula:
Wherein, VchgIt (i) is the charging voltage in the i-th stage, i is stage serial number, and i is integer and 1≤i≤n.
Optionally, in charging method according to the present invention, when battery core voltage reaches first voltage threshold value, using first
The charging voltage in stage is battery charging；Then, when battery core voltage increases second constant, using the charging electricity of next stage
Pressure is that battery charges.
Optionally, in charging method according to the present invention, b=10mV.
According to an aspect of the present invention, a kind of charging unit is provided, is resided in mobile terminal, comprising: charge control
Unit and electricity output unit；Wherein, charging control unit is suitable for determining charging voltage according to the battery core voltage of rechargeable battery
And/or charging current, and send charging voltage determined by instruction electricity output unit output to electricity output unit and/or fill
The control signal of electric current；Electricity output unit is suitable for receiving the control signal that charging control unit is sent, and to chargeable electricity
Charging voltage and/or charging current indicated by pond output control signal.
Optionally, in charging unit according to the present invention, charging control unit is further adapted for according to the following steps really
Determine charging voltage and/or charging current: when battery core voltage is less than first voltage threshold value, setting steady state value for charging current；
When battery core voltage reaches first voltage threshold value, multistage steady state value is set by charging voltage, wherein the charging in each stage
Voltage successively successively decreases.
Optionally, in charging unit according to the present invention, charging control unit is further adapted for: being set by charging current
When being set to steady state value, maximum charging voltage is determined according to following formula:
Vchgm=V2+a
Wherein, VchgmFor maximum charging voltage, V2Reach charging voltage when first voltage threshold value, a for battery core voltage
One constant.
Optionally, in charging unit according to the present invention, a=100mV.
Optionally, in charging unit according to the present invention, charging control unit is suitable for according to any in following formula
It plants to determine the quantity in the stage:
Wherein, n is the quantity in stage, VopExpire piezoelectric voltage, V for battery1For first voltage threshold value, b is second constant,
Expression rounds up,It indicates to be rounded downwards.
Optionally, in charging unit according to the present invention, charging control unit is suitable for determining according to following formula each
The charging voltage value in stage:
Wherein, VchgIt (i) is the charging voltage value in the i-th stage, V2 is charging when battery core voltage reaches first voltage threshold value
Voltage, i are stage serial number, and i is integer and 1≤i≤n.
Optionally, in charging unit according to the present invention, charging control unit is further adapted for according to the following steps to
Charging voltage is set as multistage steady state value: when battery core voltage reaches first voltage threshold value, setting for charging voltage
The charging voltage value V in one stagechg(1)；Then, when battery core voltage increases second constant, set next for charging voltage
The charging voltage value in stage.
Optionally, in charging unit according to the present invention, b=10mV.
According to an aspect of the present invention, a kind of mobile terminal, including rechargeable battery are provided, rechargeable battery includes electricity
Core and voltameter, voltameter are suitable for obtaining the voltage of the battery core；And charging unit as described above.
According to the technique and scheme of the present invention, firstly, using constant current charging method to fill for battery when battery core voltage is lower
Electricity, and the sufficiently large maximum charging voltage of a surplus is set, so as to compensate electricity caused by impedance loop and the internal resistance of cell
Pressure consumption, extends the charging time of constant-current phase.When battery core voltage reaches first voltage threshold value, using constant pressure stage by stage
Charging modes are battery charging, the charging voltage in each stage are adjusted according to battery core voltage, the charging voltage in each stage is successively passed
Subtract, to realize dynamic internal resistance compensation, shortens the charging time of constant-voltage phase, while can guarantee that battery is actually filled
Full electricity.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
To the accomplishment of the foregoing and related purposes, certain illustrative sides are described herein in conjunction with following description and drawings
Face, these aspects indicate the various modes that can practice principles disclosed herein, and all aspects and its equivalent aspect
It is intended to fall in the range of theme claimed.Read following detailed description in conjunction with the accompanying drawings, the disclosure it is above-mentioned
And other purposes, feature and advantage will be apparent.Throughout the disclosure, identical appended drawing reference generally refers to identical
Component or element.
Fig. 1 shows the structure chart of mobile terminal 100 and charging unit 200 according to an embodiment of the invention；
Fig. 2 shows the flow charts of charging method 200 according to an embodiment of the invention；
Fig. 3 shows the schematic diagram of charging process according to an embodiment of the invention.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
Fig. 1 shows the structure chart of mobile terminal 100 and charging unit 200 according to an embodiment of the invention.Such as
Shown in Fig. 1, mobile terminal 100 includes rechargeable battery 110 and charging unit 200.
Rechargeable battery 110 is suitable for providing electric energy to mobile terminal 100, to maintain the normal use of mobile terminal 100.It can
Rechargeable battery 110 can be used as non-removable a part and be built in mobile terminal 100, can also be used as mobile terminal 100
A dismountable component, the present invention to the existence form in the mobile terminal 100 of rechargeable battery 110 with no restrictions.It can
Rechargeable battery 110 includes battery core and voltameter, wherein and voltameter can read the voltage of battery core, remaining capacity etc., so as to
The state of battery is obtained, for example, obtaining the surplus of rechargeable battery 110 when rechargeable battery 110 is in (electric discharge) state of use
Remaining electricity；When rechargeable battery 110 is in charged state, battery core voltage is obtained, to learn the charging of rechargeable battery 110
Process.
Charging unit 200 is connect with external power supply (or power supply adaptor), can be according to the battery core electricity of rechargeable battery 110
Pressure converts suitable current source for external power supply or voltage source is that rechargeable battery 110 is efficiently charged.Specifically,
Charging unit 200 includes charging control unit 210 and electricity output unit 220.Charging control unit 210 is suitable for according to chargeable
The battery core voltage of battery determines charging voltage and/or charging current, and sends instruction electricity output list to electricity output unit 220
Member 220 exports the control signal of identified charging voltage and/or charging current.Electricity output unit 220 receives charge control
The control signal that unit 210 is sent, and export charging voltage indicated by the control signal to rechargeable battery 110 and/or fill
Electric current.
According to a kind of embodiment, charging control unit 210 is when battery core voltage is less than first voltage threshold value, by charging current
It is set as steady state value；When battery core voltage reaches first voltage threshold value, multistage steady state value is set by charging voltage,
In, the charging voltage in each stage is successively successively decreased.That is, charging control unit 210 when battery core voltage is lower, controls electricity
Output unit 220 uses current constant mode for the charging of rechargeable battery 110；When battery core voltage is higher, electricity output unit is controlled
220 use stage by stage constant voltage mode for rechargeable battery 110 charging.It should be pointed out that above-mentioned first voltage threshold value should be less than electricity
Expire piezoelectric voltage in pond.First voltage threshold value can be measured value, for example, by using " constant current-constant pressure " charging modes of the prior art
When for battery charging, measure into constant-voltage charge when battery core voltage as first voltage threshold value；First voltage threshold value can also
To be designated value, for example, by those skilled in the art rule of thumb with actual conditions self-setting.The present invention is to first voltage threshold
With no restrictions, but in general, first voltage threshold value can be than the charging effect using designated value using measured value for the value of value
More preferably.
According to a kind of embodiment, in constant-current charging phase, charging current is set battery by charging control unit 210, which to hold,
The maximum current received, to accelerate charging rate.In addition, guaranteeing the charging of constant-current phase in order to compensate for internal resistance and impedance loop
Time needs that a surplus is arranged for the charging voltage of constant-current phase.For example, when determining constant-current charge according to following formula most
Big charging voltage:
Vchgm=V2+a (1)
Wherein, VchgmFor maximum charging voltage, V2Reach charging voltage when first voltage threshold value, a for battery core voltage
One constant.According to a kind of embodiment, a=100mV.Certainly, those skilled in the art can also set a to other numerical value, this
Invention to the value of a with no restrictions.It should be pointed out that second voltage threshold value is a value corresponding with first voltage threshold value.Second
Voltage threshold can be measured value, for example, surveying when will use " constant current-constant pressure " charging modes of the prior art as battery charging
Into constant-voltage charge when charging voltage as second voltage threshold value, (battery core voltage when into constant-voltage charge is first electric
Press threshold value)；Second voltage threshold value is also possible to designated value, for example, by those skilled in the art rule of thumb with actual conditions voluntarily
Setting, it should be noted that, second voltage threshold value should match with first voltage threshold value.The present invention takes second voltage threshold value
Value with no restrictions, still, is difficult to ensure that first voltage threshold value matches with second voltage threshold value when due to using designated value, second
Voltage threshold can be more preferable than using the charging effect of designated value using measured value corresponding with first voltage threshold value.
When battery core voltage reaches first voltage threshold value, charging control unit 210 controls electricity output unit 220 by exporting
Constant current is converted into the multistage constant voltage of output.According to a kind of embodiment, the quantity in stage is according in following formula
It is any to determine:
Wherein, n is the quantity in stage, VopExpire piezoelectric voltage, V for battery1For first voltage threshold value, b is second constant,
Expression rounds up,It indicates to be rounded downwards.According to a kind of embodiment, b=10mv.Certainly, those skilled in the art can also
To set other numerical value for b, the present invention to the value of b with no restrictions.It should be pointed out that formula (2), formula (3) difference only
It is rounding mode, one rounds up, and one is rounded downwards.Those skilled in the art can arbitrarily select, and the present invention is to this
With no restrictions.
According to a kind of embodiment, the charging voltage in each stage is determined according to following formula:
Wherein, VchgIt (i) is the charging voltage in the i-th stage, i is stage serial number, and i is integer and 1≤i≤n.
After the charging voltage that stage quantity and each stage have been determined according to above-mentioned formula, charging control unit
210 can determine whether to enter a certain constant voltage charging phase according to battery core voltage.According to a kind of embodiment, when battery core voltage reaches
When to first voltage threshold value, it sets charging voltage to the charging voltage value V of first stagechg(1)；Then, whenever battery core voltage
When increasing second constant, it sets charging voltage to the charging voltage value of next stage.
Fig. 2 shows the flow charts of charging method 300 according to an embodiment of the invention.Method 300 is suitable for by charging
Device 200 is implemented, to realize the efficient charging to rechargeable battery 110.As shown in Fig. 2, method 300 starts from step S310.
In step s310, use constant charge current for battery charging.
According to a kind of embodiment, during constant current charging, maximum charge electricity is determined according to aforementioned formula (1)
Pressure.The sufficiently large maximum charging voltage of one surplus can be set for constant-current charge process in this way, thus compensate impedance loop and
Pressure drop caused by the internal resistance of cell neglects the difference of impedance loop and the internal resistance of cell, as long as the charging electricity during constant-current charge
Pressure is not above set maximum charging voltage, so that it may guarantee constant charging current, when extending the charging of constant-current phase
Between.
Then, in step s 320, judge whether battery core voltage reaches first voltage threshold value.If it is not, then continuing to execute step
Rapid S310 uses constant charge current for battery charging；If so, thening follow the steps S330.
In step S330, use constant charge voltage stage by stage for battery charging.
According to a kind of embodiment, the quantity in stage can be determined according to aforementioned formula (2) or formula (3), each stage
Charging voltage can be determined according to aforementioned formula (4).Step S330 can specifically be implemented according to the following steps: when battery core electricity
When pressure reaches first voltage threshold value, use the charging voltage of first stage for battery charging；Then, whenever battery core voltage increases by the
When two constants, use the charging voltage of next stage for battery charging.
For rechargeable battery, battery core voltage is higher, and internal resistance is smaller.The constant-voltage charge side stage by stage of step S330
Formula can adjust the charging voltage in each stage according to battery core voltage, and the charging voltage in each stage is successively successively decreased, i.e., each stage
Voltage compensation value successively successively decrease, this is smaller with the internal resistance of cell in charging process (because with the progress of charging process, battery core electricity
Press higher and higher) basic law match, realize dynamic internal resistance compensation, shorten the charging time of constant-voltage phase.This
Outside, since the charging voltage in each stage is successively successively decreased, battery core voltage is gradually risen, and the pressure difference of charging voltage and battery core voltage is gradually
Reduce, correspondingly, charging current can be also gradually reduced；When charging voltage is equal with battery core voltage, charging current 0 terminates
Entire charging process.Constant-voltage charge stage by stage of the invention is an incremental process, is avoided as the prior art
Because using single constant voltage fling and caused by " empty electricity " phenomenon, it is ensured that battery capacity is actually full of, and is being shortened
Charging quality is improved while charging time.
Fig. 3 shows the schematic diagram of charging process according to an embodiment of the invention.Firstly, of the invention in order to implement
Method needs to be arranged first voltage threshold value V1With second voltage threshold value V2.In the present embodiment, first voltage threshold value is using existing
When " constant current-constant pressure " charging modes for having technology are battery charging, measure into constant-voltage charge when battery core voltage；Second electricity
When pressure threshold value use the prior art " constant current-constant pressure " charging modes to charge for battery, measure into constant-voltage charge when
Charging voltage.After tested, first voltage threshold value V1=4.35V, second voltage threshold value are V2=4.56V.In addition, the full electricity electricity of battery
Press Vop=4.4V, battery rated current are 3.2A.First constant a=100mV, second constant b=10mV are set.
Based on the above parameter, it can be deduced that:
When constant-current charge: charging current 3.2A, maximum charging voltage=V2+ a=4.56+0.1=4.66V；
Stage by stage when constant-voltage charge:
Stage quantity
First stage charging voltage Vchg(1)=4.56- (4.56-4.4) * 0/4=4.56V；
Second stage charging voltage Vchg(2)=4.56- (4.56-4.4) * 1/4=4.52V；
Phase III charging voltage Vchg(3)=4.56- (4.56-4.4) * 2/4=4.48V；
Fourth stage charging voltage Vchg(4)=4.56- (4.56-4.4) * 3/4=4.44V；
5th stage charging voltage Vchg(5)=4.56- (4.56-4.4) * 4/4=4.4V；
When battery core voltage reaches first voltage threshold value 4.35V, using first stage charging voltage Vchg(1)=4.56V is
Battery charging；Then, the every increase second constant b=10mV of battery core voltage uses the charging voltage of next stage for battery charging.
It is charged based on the above parameter to battery, charging curve can be drawn out, as shown in Figure 3.Charging curve shown in Fig. 3
In, abscissa is the time, and unit is the second (s)；Voltage and current shares an ordinate, and the unit of voltage is volt (V), electric current
Unit be ampere (A).Three solid lines in Fig. 3 successively indicate from top to bottom charging voltage in charging process, battery core voltage,
Charging current.
Charging process shown in Fig. 3 includes 1. -6. totally six parts:
1. the is partially constant-current charge process, it is 3.2A that charging current is constant, charging voltage with battery core voltage increase
And increase.When battery core voltage reaches first voltage threshold value 4.35V, since maximum charging voltage is compensated in advance, charging
The maximum charging voltage 4.66V that voltage is not up to set at this time.When battery core voltage reaches first voltage threshold value 4.35V, enter
2. part.
2. is partially first stage constant-voltage charge process, charging voltage Vchg(1)=4.56V.At this stage, charging electricity
Pressing constant is 4.56V, and battery core voltage gradually rises up to 4.36V from 4.35V.Pressure difference between charging voltage and battery core voltage is gradually
Reduce, correspondingly, charging current is also gradually reduced.When battery core voltage reaches 4.36V, into next stage constant-voltage charge, i.e.,
Into the 3. part.
3. is partially second stage constant-voltage charge process, charging voltage Vchg(2)=4.52V.At this stage, charging electricity
Pressing constant is 4.52V, and battery core voltage gradually rises up to 4.37V from 4.36V.Pressure difference between charging voltage and battery core voltage is gradually
Reduce, correspondingly, charging current is also gradually reduced.When battery core voltage reaches 4.37V, into next stage constant-voltage charge, i.e.,
Into the 4. part.
4. is partially phase III constant-voltage charge process, charging voltage Vchg(3)=4.48V.At this stage, charging electricity
Pressing constant is 4.48V, and battery core voltage gradually rises up to 4.38V from 4.37V.Pressure difference between charging voltage and battery core voltage is gradually
Reduce, correspondingly, charging current is also gradually reduced.When battery core voltage reaches 4.37V, into next stage constant-voltage charge, i.e.,
Into the 5. part.
5. is partially fourth stage constant-voltage charge process, charging voltage Vchg(4)=4.44V.At this stage, charging electricity
Pressing constant is 4.44V, and battery core voltage gradually rises up to 4.39V from 4.38V.Pressure difference between charging voltage and battery core voltage is gradually
Reduce, correspondingly, charging current is also gradually reduced.When battery core voltage reaches 4.37V, into next stage constant-voltage charge, i.e.,
Into the 6. part.
6. is partially the 5th stage constant-voltage charge process, charging voltage Vchg(5)=4.4V.At this stage, charging voltage
Constant is 4.4V, and battery core voltage gradually rises up to 4.4V from 4.39V.When battery core voltage reaches 4.4V, charging voltage and battery core
Voltage is equal, stops charging.At this point, battery capacity has been filled.
Method described in A6:A5, wherein when battery core voltage reaches first voltage threshold value, using the charging of first stage
Voltage is battery charging；Then, when battery core voltage increases second constant, the charging voltage of next stage is used to fill for battery
Electricity.
Method described in any one of A7:A4-6, wherein b=10mV.
Charging unit described in B12:B9-11, wherein the charging control unit is suitable for according to any in following formula
It plants to determine the quantity in the stage:
Wherein, n is the quantity in stage, VopExpire piezoelectric voltage, V for battery1For first voltage threshold value, b is second constant,
Expression rounds up,It indicates to be rounded downwards.
Charging unit described in B13:B12, wherein the charging control unit is suitable for determining each rank according to following formula
The charging voltage value of section:
Wherein, VchgIt (i) is the charging voltage value in the i-th stage, V2 is charging when battery core voltage reaches first voltage threshold value
Voltage, i are stage serial number, and i is integer and 1≤i≤n.
Charging unit described in B14:B12, wherein the charging control unit is further adapted for fill according to the following steps
Piezoelectric voltage is set as multistage steady state value:
When battery core voltage reaches first voltage threshold value, it sets charging voltage to the charging voltage value V of first stagechg
(1)；Then, when battery core voltage increases second constant, charging voltage is set to the charging voltage value of next stage.
Charging unit described in any one of B15:B12-14, wherein b=10mV.
Various technologies described herein are realized together in combination with hardware or software or their combination.To the present invention
Method and apparatus or the process and apparatus of the present invention some aspects or part can take insertion tangible media, such as can
Program code (instructing) in mobile hard disk, USB flash disk, floppy disk, CD-ROM or other any machine readable storage mediums
Form, wherein when program is loaded into the machine of such as computer etc, and when being executed by the machine, the machine becomes to practice
Equipment of the invention.
In the case where program code executes on programmable computers, mobile terminal generally comprises processor, processor
Readable storage medium (including volatile and non-volatile memory and or memory element), at least one input unit, and extremely
A few output device.Wherein, memory is configured for storage program code；Processor is configured for according to the memory
Instruction in the said program code of middle storage executes game object management method of the invention.
By way of example and not limitation, readable medium includes readable storage medium storing program for executing and communication media.Readable storage medium storing program for executing
Store the information such as computer readable instructions, data structure, program module or other data.Communication media is generally such as to carry
The modulated message signals such as wave or other transmission mechanisms embody computer readable instructions, data structure, program module or other
Data, and including any information transmitting medium.Above any combination is also included within the scope of readable medium.
In the instructions provided here, algorithm and display not with any certain computer, virtual system or other
Equipment is inherently related.Various general-purpose systems can also be used together with example of the invention.As described above, it constructs this kind of
Structure required by system is obvious.In addition, the present invention is also not directed to any particular programming language.It should be understood that can
With using various programming languages realize summary of the invention described herein, and the description that language-specific is done above be for
Disclosure preferred forms of the invention.
In the instructions provided here, numerous specific details are set forth.It is to be appreciated, however, that implementation of the invention
Example can be practiced without these specific details.In some instances, well known method, knot is not been shown in detail
Structure and technology, so as not to obscure the understanding of this specification.
Similarly, it should be understood that in order to simplify the disclosure and help to understand one or more of the various inventive aspects,
Above in the description of exemplary embodiment of the present invention, each feature of the invention is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the disclosed method should not be interpreted as reflecting the following intention: i.e. required to protect
Shield the present invention claims than feature more features expressly recited in each claim.More precisely, as following
As claims reflect, inventive aspect is all features less than single embodiment disclosed above.Therefore, it abides by
Thus the claims for following specific embodiment are expressly incorporated in the specific embodiment, wherein each claim itself
As a separate embodiment of the present invention.
Those skilled in the art should understand that the module of the equipment in example disclosed herein or unit or groups
Part can be arranged in equipment as depicted in this embodiment, or alternatively can be positioned at and the equipment in the example
In different one or more equipment.Module in aforementioned exemplary can be combined into a module or furthermore be segmented into multiple
Submodule.
Those skilled in the art will understand that can be carried out adaptively to the module in the equipment in embodiment
Change and they are arranged in one or more devices different from this embodiment.It can be the module or list in embodiment
Member or component are combined into a module or unit or component, and furthermore they can be divided into multiple submodule or subelement or
Sub-component.Other than such feature and/or at least some of process or unit exclude each other, it can use any
Combination is to all features disclosed in this specification (including adjoint claim, abstract and attached drawing) and so disclosed
All process or units of what method or apparatus are combined.Unless expressly stated otherwise, this specification is (including adjoint power
Benefit require, abstract and attached drawing) disclosed in each feature can carry out generation with an alternative feature that provides the same, equivalent, or similar purpose
It replaces.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments mean it is of the invention
Within the scope of and form different embodiments.For example, in the following claims, embodiment claimed is appointed
Meaning one of can in any combination mode come using.
In addition, be described as herein can be by the processor of computer system or by executing by some in the embodiment
The combination of method or method element that other devices of the function are implemented.Therefore, have for implementing the method or method
The processor of the necessary instruction of element forms the device for implementing this method or method element.In addition, Installation practice
Element described in this is the example of following device: the device be used for implement as in order to implement the purpose of the invention element performed by
Function.
As used in this, unless specifically stated, come using ordinal number " first ", " second ", " third " etc.
Description plain objects, which are merely representative of, is related to the different instances of similar object, and is not intended to imply that the object being described in this way must
Must have the time it is upper, spatially, sequence aspect or given sequence in any other manner.
Although the embodiment according to limited quantity describes the present invention, above description, the art are benefited from
It is interior it is clear for the skilled person that in the scope of the present invention thus described, it can be envisaged that other embodiments.Additionally, it should be noted that
Language used in this specification primarily to readable and introduction purpose and select, rather than in order to explain or limit
Determine subject of the present invention and selects.Therefore, without departing from the scope and spirit of the appended claims, for this
Many modifications and changes are obvious for the those of ordinary skill of technical field.For the scope of the present invention, to this
It invents done disclosure to be illustrative and be not restrictive, it is intended that the scope of the present invention be defined by the claims appended hereto.
Claims (13)
1. a kind of charging method, comprising:
Use constant charge current for battery charging；
When battery core voltage reaches first voltage threshold value, use constant charge voltage stage by stage for battery charging, wherein each rank
The charging voltage of section is successively successively decreased, comprising: when battery core voltage reaches first voltage threshold value, using the charging voltage of first stage
It charges for battery, and the charging voltage is second voltage threshold value, the second voltage threshold value is when battery core voltage reaches the first electricity
The measured value of corresponding charging voltage when pressure threshold value；Then, when battery core voltage increases second constant, using next stage
Charging voltage be battery charging；
When charging voltage and battery expire piezoelectric voltage it is equal when, stop charging.
2. maximum charging voltage of the constant charge current for battery charging when is the method for claim 1, wherein used to press
It is determined according to following formula:
Vchgm=V2+a
Wherein, VchgmFor maximum charging voltage, V2Reach charging voltage when first voltage threshold value for battery core voltage, a is first normal
Number.
3. method according to claim 2, wherein a=100mV.
4. method as claimed in any one of claims 1-3, wherein the quantity in the stage is according to any in following formula
Kind is to determine:
Wherein, n is the quantity in stage, VopExpire piezoelectric voltage, V for battery1For first voltage threshold value, b is second constant,It indicates
It rounds up,It indicates to be rounded downwards.
5. method as claimed in claim 4, wherein the charging voltage in each stage is determined according to following formula:
Wherein, VchgIt (i) is the charging voltage in the i-th stage, i is stage serial number, and i is integer and 1≤i≤n.
6. method as claimed in claim 4, wherein b=10mV.
7. a kind of charging unit, resides in mobile terminal, comprising:
Charging control unit；With
Electricity output unit；
Wherein, the charging control unit is suitable for determining charging voltage and/or charging electricity according to the battery core voltage of rechargeable battery
Stream, and sent to the electricity output unit and indicate that the electricity output unit exports identified charging voltage and/or charging
The control signal of electric current；The charging control unit is further adapted for determining charging voltage and/or charging electricity according to the following steps
Stream:
When battery core voltage is less than first voltage threshold value, steady state value is set by charging current；
When battery core voltage reaches first voltage threshold value, multistage steady state value is set by charging voltage, wherein each stage
Charging voltage is successively successively decreased, comprising: when battery core voltage reaches first voltage threshold value, uses the charging voltage of first stage for electricity
Pond charging, and the charging voltage is second voltage threshold value, the second voltage threshold value is survey corresponding with first voltage threshold value
Magnitude；Then, when battery core voltage increases second constant, use the charging voltage of next stage for battery charging；
The electricity output unit is suitable for receiving the control signal that the charging control unit is sent, and to the rechargeable battery
Export charging voltage and/or charging current indicated by the control signal.
8. charging unit as claimed in claim 7, wherein the charging control unit is further adapted for: by charging current
When being set as steady state value, maximum charging voltage is determined according to following formula:
Vchgm=V2+a
Wherein, VchgmFor maximum charging voltage, V2Reach charging voltage when first voltage threshold value for battery core voltage, a is first normal
Number.
9. charging unit as claimed in claim 8, wherein a=100mV.
10. such as the described in any item charging units of claim 7-9, wherein the quantity in the stage is according in following formula
It is any to determine:
Wherein, n is the quantity in stage, VopExpire piezoelectric voltage, V for battery1For first voltage threshold value, b is second constant,It indicates
It rounds up,It indicates to be rounded downwards.
11. charging unit as claimed in claim 10, wherein the charging voltage value in each stage is determined according to following formula:
Wherein, VchgIt (i) is the charging voltage value in the i-th stage, V2 Reach charging electricity when first voltage threshold value for battery core voltage
Pressure, i are stage serial number, and i is integer and 1≤i≤n.
12. charging unit as claimed in claim 10, wherein b=10mV.
13. a kind of mobile terminal, comprising:
Rechargeable battery, the rechargeable battery include battery core and voltameter, and the voltameter is suitable for obtaining the electricity of the battery core
Pressure；And
Charging unit as described in any one of claim 7-12.
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| CN108832208A (en) * | 2018-06-22 | 2018-11-16 | 郑州云海信息技术有限公司 | A kind of standby battery unit |
| CN109546244B (en) * | 2018-08-15 | 2021-08-06 | 深圳市中孚能电气设备有限公司 | Quick charging method, device, equipment and storage medium |
| CN109672000A (en) * | 2019-02-19 | 2019-04-23 | 惠州亿纬锂能股份有限公司 | Charging method, device, equipment and the storage medium of lithium battery |
| CN109813955B (en) * | 2019-02-25 | 2022-11-04 | 北京元点未来科技有限公司 | Charging voltage abnormity prompting method and system, wearable device and storage medium |
| CN110404827B (en) * | 2019-07-16 | 2022-03-01 | Oppo广东移动通信有限公司 | Battery screening method and device and storage medium |
| CN110707388B (en) * | 2019-09-16 | 2021-09-03 | Tcl移动通信科技（宁波）有限公司 | Charging method, charging device, storage medium and electronic equipment |
| CN110729790B (en) * | 2019-10-28 | 2023-03-21 | Oppo广东移动通信有限公司 | Charging method and device, computer equipment and storage medium |
| CN112768795A (en) * | 2019-11-06 | 2021-05-07 | 北京小米移动软件有限公司 | Battery charging method, device and medium |
| CN111082487B (en) * | 2019-12-25 | 2024-02-02 | Oppo广东移动通信有限公司 | Charging control method and device and electronic equipment |
| CN111106400B (en) * | 2019-12-27 | 2021-10-22 | 联想(北京)有限公司 | Battery control method and battery management equipment |
| CN115117947A (en) * | 2021-03-19 | 2022-09-27 | 北京小米移动软件有限公司 | Wireless charging control method, device, equipment and storage medium |
| CN114285179B (en) * | 2021-12-07 | 2024-07-23 | 珠海格力电器股份有限公司 | Wireless charging method, device and wireless charging system |
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