CN107171384A - The charge control method and device of battery - Google Patents
The charge control method and device of battery Download PDFInfo
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- CN107171384A CN107171384A CN201710399382.3A CN201710399382A CN107171384A CN 107171384 A CN107171384 A CN 107171384A CN 201710399382 A CN201710399382 A CN 201710399382A CN 107171384 A CN107171384 A CN 107171384A
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- battery
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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
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
- H02J7/00718—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current in response to charge current gradient
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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
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
- H02J7/007184—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage in response to battery voltage gradient
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The charge control method and device of a kind of battery are provided in the embodiment of the present invention.The method is applied under the linear charge mode of the battery, and the method includes：The battery is charged, and determines whether the battery meets preparatory condition；When the battery meets preparatory condition, the battery is charged using regulation electric current；Wherein, the regulation electric current is less than the constant-current charge electric current of the battery and more than the pre-charge current of the battery；I.e. during being charged using linear charge mode to battery, when the process charged to battery is in the starting preset time period in constant-current charging phase, it can be charged by using the regulation current versus cell between pre-charge current and constant-current charge electric current, effectively to reduce the power consumption of charging circuit, so overcome during due to charging cell voltage relatively low and the problem of not high charge efficiency that cause.
Description
Technical field
The present embodiments relate to portable electric appts charging technique, more particularly to a kind of charge control method of battery
And device.
Background technology
At present, usually using " switching mode " or " linear model " to portable electronics such as mobile phone, tablet personal computers
Equipment is charged." switching mode " refers to that charger provides constant electric current and portable electric appts are charged, and
The alternate action charged and stop charging during charging, to prevent component from overheating；" linear model " then refers to
Charger to portable electric appts during charging, and the charging current persistently provided can be with portable electronic
The rising of device power cell voltage and linear reduction.Wherein, " linear model " generally comprises the precharge carried out successively, constant current
(constant current) charges and the stage such as constant pressure (constant voltage) charging, i.e., battery is being charged
During, determined to carry out battery the charging operations of respective stage according to currently detected cell voltage.
Because " linear model " has the advantages that output voltage quality is high, ripple is small, need not use inductance element so that
It is widely used in low pressure charging field.But, portable electric appts are charged using " linear model "
During (i.e. linear-charging), in the early stage of constant-current charging phase, because charging current is larger, it can cause in charging circuit
Circuit element (such as bipolar junction transistor (Bipolar Junction Transistor, abbreviation BJT) and/or metal oxide
Field-effect transistor (metal oxide semiconductor, abbreviation MOS) and/or sensing resistance RSENSEDeng) temperature rise
Hurry up, it is too high, i.e., charge member can be overheated, and have substantial amounts of power consumption penalty on charge path, and then the peace of product can be given
Charge efficiency is substantially reduced while bringing certain hidden danger entirely.
The content of the invention
The charge control method and device of a kind of battery provided in the embodiment of the present invention, can be based on using " linear
Pattern " carries out the early stage mistake of constant-current charge to the portable electric appts such as mobile phone, tablet personal computer (or consumer-elcetronics devices)
In journey (when the process charged to battery is in the starting preset time period in constant-current charging phase), and/or pass through
The voltage node that charging is mediated is set with reference to battery capacity, and using relative before cell voltage reaches voltage node
Relatively low electric current is charged, and then to overcome that is caused in the case where cell voltage is relatively low because charging current is excessive to fill
The resistor of some in circuit (such as BJT and/or metal-oxide-semiconductor and/or sensing resistance RSENSEDeng) overheat caused by charge efficiency it is low
Etc. defect.
In a first aspect, the present invention provides a kind of charge control method of battery, methods described can be applied to the battery
Under linear charge mode, methods described includes：
The battery is charged, and determines whether the battery meets preparatory condition；
When the battery meets preparatory condition, the battery is charged using regulation electric current；
Wherein, the regulation electric current is less than the constant-current charge electric current of the battery and more than the precharge electricity of the battery
Stream.
Optionally, above-mentioned method, the battery meets preparatory condition, it may include：Charging is carried out to the battery to be in
In the starting preset time period of constant-current charging phase.
Optionally, above-mentioned method, the battery meets preparatory condition, it may include：The current capacities of the battery are less than
The preset ratio of the battery rated capacity.
Optionally, above-mentioned method, the preset ratio is 5%~20%.
Optionally, above-mentioned method, may also include：
The voltage of the battery is detected in real time；
The battery meets preparatory condition, including：UCC＜ UBAT≤UX＜ UCV；
Wherein, the UCCThe voltage threshold of constant-current charge, the U are carried out for the batteryBATFor the electricity of presently described battery
Pressure, the UXThe voltage threshold of charging, the U are adjusted for the batteryCVThe voltage of constant-voltage charge is carried out for the battery
Threshold value.
Optionally, above-mentioned method, may also include：
Based on big data analysis, the U is determined according to the charge efficiency that the battery chargesXValue.
Optionally, above-mentioned method, it is described that the battery is charged using regulation electric current, it may include：
The battery is charged using the regulation electric current in the way of constant current.
Second aspect, the invention provides a kind of battery charge controller of battery, can be applied to use linear charge mode
During being charged to battery in portable electric appts, described device includes charging module, the control mould being sequentially connected
Block and detection module, are connected with the charging module and the detection module respectively during the battery charging；
The control module is filled according to being adjusted the voltage for the battery for detecting acquisition in real time from the detection module
The charging current of electric module, and UCC＜ UBAT≤UXWhen, charging is adjusted to the battery using regulation electric current；
Wherein, UCC＜ UX＜ UCV, IPre＜ IX＜ ICC, the UCCThe voltage threshold of constant-current charge is carried out for the battery,
The UBATFor the voltage of presently described battery, the UXThe voltage threshold of charging, the U are adjusted for the batteryCVFor institute
State the voltage threshold that battery carries out constant-voltage charge, the IPreEnter the current value of line precharge, the I for the batteryXFor regulation
Electric current, the ICCEnter the current value of line precharge for the battery.
Optionally, above-mentioned device, control unit, judging unit and the storage that the control module includes being sequentially connected is single
Member, the judging unit is connected with the detection module, and described control unit is connected with the charging module：
Wherein, the judging unit is according to the U obtained in real time from the detection unitBATAnd in the memory cell
The charging stage that the threshold voltage of storage is carried out to judge the battery to need, described control unit is defeated according to the judging unit
The judged result gone out is transferred from the memory cell and sends corresponding charging current value to the charging module, so that described
Charging module carries out corresponding charging operations to the battery.
Optionally, above-mentioned device, the charging module is carried out in the way of constant current using regulation electric current to the battery
Charging.
The charge control method and device of battery in the embodiment of the present invention, can be default in the starting in constant-current charging phase
In period, charged by using the regulation current versus cell between pre-charge current and constant-current charge electric current, it is real
Now reduce the purpose of charging circuit component power consumption, and then solve that battery charge efficiency is low and charging circuit component temperature rise
Hurry up, excessively high technical problem.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of the embodiment of charge control method one of battery of the present invention；
Fig. 2 is voltage (U)/electric current (I)-time (T) relation schematic diagram during the embodiment of the present invention charges the battery；
Fig. 3 be based on charging process shown in Fig. 2 further improve after charge the battery during voltage (U)/electric current (I)-
Time (T) relation schematic diagram；
Fig. 4 be based on charging process shown in Fig. 3 further improve after charge the battery during voltage (U)/electric current (I)-
Time (T) relation schematic diagram；
Fig. 5 is the flow chart of another embodiment of charge control method of battery of the present invention；
Fig. 6 is the flow chart of the charge control method another embodiment of battery of the present invention；
Fig. 7 is the structural representation of the battery charge controller embodiment of battery of the present invention；
Fig. 8 is the structural representation of control module in the battery charge controller based on battery shown in Fig. 7.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 is the schematic flow sheet of the embodiment of charge control method one of battery of the present invention；As shown in figure 1, the present embodiment
A kind of control method of battery, can be applied to using linear charge mode (electric to such as mobile phone, flat board using " linear model "
The complete procedure that the portable electric appts such as brain are charged generally comprises the precharge carried out successively, constant-current charge and constant pressure and filled
The stages such as electricity) to battery charge during, this method includes：
Step S11：Start the charging operations to battery.
For example, charger is plugged on portable electric appts and power supply respectively, so as to obtain on portable electric appts
Battery be connected with power supply by charger point.
Step S12：Determine whether battery meets preparatory condition.
For example, determining whether some electrical parameters of battery meet preparatory condition, the preparatory condition may include present battery
Charging whether be in linear charge mode under constant-current charging phase starting preset time period in (such as constant-current charging phase starts
In the default period started at, and the time span of the default period should be less than the time of constant-current charging phase
Length, the time span of the default period preferably for the time span of constant-current charging phase 1/2nd or three/
One (T as shown in Figure 31~TX))；Or, above-mentioned preparatory condition may include that current battery level carries out constant current between battery
The voltage threshold of charging is carried out with battery in the range of the voltage threshold of constant-voltage charge.Continue step S13 if preparatory condition is met；
Otherwise, continue to judge whether battery meets preparatory condition, it is preferred that preset time period can be spaced and continue above-mentioned with certain frequency
Judgement operation.
Step S13：When battery meets preparatory condition, charged using regulation current versus cell.Adjust electric current between
Between the constant-current charge electric current of battery and the pre-charge current of battery.
Pre-charge voltage U is just less than with cell voltage belowPreWhen the battery is full of exemplified by be specifically described：
Fig. 2 is voltage (U)/electric current (I)-time (T) relation schematic diagram during the embodiment of the present invention charges the battery；Figure
3 be voltage (U)/electric current (I)-time (T) relation during being charged the battery after further being improved based on charging process shown in Fig. 2
Schematic diagram；Fig. 4 be based on charging process shown in Fig. 3 further improve after charge the battery during voltage (U)/electric current (I)-when
Between (T) relation schematic diagram；As shown in Fig. 2 in one embodiment of the application, being carried out to the battery on portable electric appts
One complete procedure of charging can include pre-charging stage successively (i.e. in 0~T of period1The charging operations carried out), constant current
Charging stage is (i.e. in period T1~T2The charging operations carried out), constant voltage charging phase is (i.e. in period T2~T3Carried out
Charging operations) and charging stop phase (i.e. in period T3~T4The charging operations carried out) etc.；According to Fig. 2
Cell voltage UBATCurve and charging current I curves are understood, as cell voltage UBATLess than constant-current charge voltage threshold UCCWhen, it can adopt
With constant pre-charge current IPreBattery is charged；As cell voltage UBATBetween constant-current charge voltage threshold UCCWith constant pressure
Charging voltage threshold value UCVBetween when, then can use constant constant-current charge electric current ICCBattery is charged；And work as cell voltage
UBATMore than constant-voltage charge voltage threshold UCVWhen, then can be using the constant-voltage charge electric current I being gradually reducedCVBattery is charged；
And in T3~T4In period, as cell voltage UBATU can be gradually decrease toACWhen, then charging operations are restarted, and according to electricity
Cell voltage UBATValue determine to be charged into the corresponding stage；IPre＜ ICC、ICV＜ ICC、UCC＜ UAC＜ UCV。
In another embodiment of the present invention, it is shown in Figure 3 on the basis of based on Fig. 2 and its related elaboration, to figure
Constant-current charging phase in 2 is (i.e. in period T1~T2, it is interior) and carried out further improvement, i.e., before constant-current charging phase
Phase (adjusts the charging stage), using between pre-charge current IPreWith constant-current charge electric current ICCBetween regulation electric current IXTo battery
Charged, to lift battery charge efficiency；Or, detecting cell voltage UBATBetween constant-current charge current threshold UCCWith
Constant-voltage charge current threshold UCVBetween when, using between pre-charge current IPreWith constant-current charge electric current ICCBetween regulation electric current IX
Battery is charged, to lift battery charge efficiency.Wherein, preferably, cell voltage U is being detectedBATBetween constant-current charge
Current threshold UCCWith regulation voltage UXBetween when, can use between pre-charge current IPreWith constant-current charge electric current ICCBetween adjust
Electric current IXBattery is charged；For example, UX=UCC+(UCV-UCC)/N, IX=IPre+(ICC-IPre)/n, N, n may be greater than it
Positive number, such as N=3, n=2.
Specifically, as shown in Fig. 2 using charger portable electric appts are charged when, from portable electric appts
The battery of middle setting is connected (battery that can be the types such as lithium battery) beginning and end time T with power supply point by charger1At this section
The interior charging operations carried out are pre-charging stage (0~T1)；Battery in the pre-charging stage, is typically due to be in
Under-voltage locking (Under-voltage lockout, abbreviation UVLO) state, i.e. cell voltage UBATLess than constant-current charge voltage threshold
Value UCC(such as 3.3V), and when battery connects charger and plug-in, then can use pre-charge current IPreBattery is charged.
It is preferred that, above-mentioned pre-charging stage may include different sub-stages, and usually can be according to current battery level UBATWhat is be worth is big
It is small to be charged into corresponding sub-stage.If for example, cell voltage UBATLess than deep discharge voltage threshold UDD(such as
2.2V), then the sub-stage that can be first charged by the way of pulse low current (such as 70mA/550ms electric current) to battery；If
It is cell voltage UBATOr reached after pulse low current charge more than (or equal to) deep discharge voltage threshold UDD(such as
2.2V), then it can enter the sub-stage charged using closed loop precharge mode to battery, and battery is carried out in the sub-stage
The process of charging, once cell voltage rises to constant-current charge voltage threshold UCCe, then stop pre-charging stage charging operations and after
The charging operations of continuous follow-up phase.
If it should be noted that battery, which is crossed, puts (Dead-Battery), can also use trickle charge (IUNIT) and special
The measures such as Timer Controlling charging behavior during charging to protect battery.In addition, the precharge electricity shown in Fig. 2~3
Flow IPreFor a constant value, and among actual application, IPreCan be different current values in different sub-stages, i.e., not
Same sub-stage can be charged using different current versus cells, and generally, pre-charge current in each sub-stage
Value is constant (I in i.e. same sub-stagePreValue it is identical), and on time dimension, according to sequencing, previous sub-stage
Interior current value may be typically less than or (i.e. in pre-charging stage, on time dimension, be charged electric equal to the current value of latter sub-stage
Flow valuve is in the trend that holding is constant or increases), and by I in all embodiments of the applicationPreCarried out as reference value and other
When the current value of charging stage is compared, it is preferred to each mean generation I in pre-charging stagePreMaximum.
With cell voltage UBATRise to UCCAnd its more than, and should be in pressure charging voltage threshold value UCC(such as 4.2V) below when
(i.e. UCC＜ UBAT≤UCV), constant charge current I can be usedCC(such as 650mA) charges to battery, i.e., in cell voltage UBAT
Rise to constant-current charge voltage threshold UCCTime point T1To cell voltage UBATRise to constant-voltage charge voltage threshold UCVTime point T2
The charging operations carried out in this period are constant-current charging phase (T1~T2)；In the constant-current charging phase, perseverance is typically to maintain
Current charge electric current ICCInvariable mode carries out charging operations to battery, because this stage is the Main Stage of battery charging,
Electricity most (the 80%~90% of electricity in such as fully charged battery) wherein in battery was stored in this stage, therefore
And the charging of this stage battery is time-consuming most long, and charging power consumption is also larger；Especially in the early stage positioned at constant-current charging phase, due to
Cell voltage UBATRelatively low, on the charging circuit of whole closed loop, the partial pressure of each component is also relatively large on charging circuit,
And then can cause the temperature rise of the component of each in charging circuit compared to pre-charging stage or constant-current charging phase later stage monarch compared with
For severity, so that charge efficiency can be largely effected on.
Wherein, can be by using pulse charge in order to solve the problem of temperature rise of component on constant-current phase charging circuit
The mode of (pulse charge) carries out charging operations；For example, charger constant-current charge can be controlled by software for a period of time (such as
After 9s), stop charging a period of time (such as 1s), then circulate successively, to lift the radiating effect of charging circuit, but it can significantly
Increase the time-consuming of this stage, while charging may cause cost increase and reduction service life of charger etc. to lack intermittently again
Fall into.
Further, it is shown in Figure 3 on the basis of based on Fig. 2, can be by perseverance in another embodiment of the present invention
In current charge stage early stage (adjusting the charging stage), it can use and be less than constant-current charge electric current ICCAnd more than pre-charge current IPre
Regulation electric current IX(such as 500mA) is charged (i.e. I to batteryPre＜ IX＜ ICC)；So, in the constant-current charging phase early stage
(i.e. in period T1~TX) in, compared to using ICCBattery used in constant-current charge, the present embodiment and is less than ICCIX
Battery is charged, the power consumption on charging circuit is now consumed and can substantially reduce and (set (ICC)2R ＞ (IX)2R, R are charging circuit
In other components in addition to the battery equivalent resistance, the R will not typically change because of the change of charging current), while also can
Enough problem of temperature rise for effectively solving component in above-mentioned charging circuit.
Wherein, due to during the entire process of being charged to battery, in battery electricity reach rated capacity 5%~
When 20% (corresponding cell voltage is 3.3V~3.7V), the power consumption of its charging circuit and temperature rise etc. peak, and correspond to
Charging stage is generally positioned in the early stage of constant-current charging phase, so prioritizing selection is used in constant-current phase early stage in the present embodiment
Specific charging current reduces charging power consumption, lifts charge efficiency.Certainly, also can be in the other times section of constant-current charge rank
Or other charging stages, on the premise of not influenceing battery to charge, can use illustrated in the present embodiment by adaptation
Reduction charging current and the mode mutually balanced with the charging interval, to lift charge efficiency and solve charging circuit component temperature rise
Etc. technical problem.
In the present embodiment, early stage is used to refer to preceding 1/3rd stage or preceding 1/2nd stage of all stage
Deng, such as constant-current charging phase early stage refer to preceding 1/3rd stage or preceding 1/2nd stage of constant-current charging phase (can
To be the division stage in the reference quantities such as time dimension, voltage dimension or electricity dimension)；It is preferred that, before constant-current charging phase
Phase refers to preceding 1/3rd stage of constant-current charging phase, because battery charge efficiency and charging circuit member device within the stage
It is especially prominent that the defects such as part temperature rise are showed, so battery charge efficiency is not only solved by reduction charging within the stage and filled
The effect of the defects such as electric circuit components temperature rise is more obvious, and whole process (such as charging the is time-consuming) shadow charged for battery
Sound is smaller.
During the above-mentioned regulation charging stage, due to by charging current from ICCIt is down to IX, filled so can effectively reduce
The power consumption of each component in circuit, and simultaneously because now cell voltage is relatively small (typically between 3.3v~3.7v),
And then reduction charging current is little for the time-consuming influence of whole charging process, so as to influence minimum premise being charged on battery
Under, can effectively be lifted charge efficiency and solve charging circuit component temperature rise it is too fast, it is too high the problems such as.
It is shown in Figure 3, after the above-mentioned regulation charging stage, it can continue to use constant-current charge electric current ICCBattery is carried out
(constant-current charging phase i.e. shown in Fig. 3 includes the regulation charging stage carried out successively to sub- constant-current charging phase and sub- constant current is filled
The electric stage), compared to the constant-current charging phase shown in Fig. 2, the time-consuming of sub- constant-current charging phase shown in Fig. 3 can subtract
It is small, but the electrical parameter such as charging current is consistent (i.e. by shown in Fig. 2 with the constant-current charging phase shown in Fig. 2
The early stage part of constant-current charging phase be adjusted to regulation charging stage shown in Fig. 3, and remainder then keeps each parameter
It is constant)；So, compared to the constant-current charging phase shown in Fig. 2, regulation charging stage and sub- constant-current charging phase one in Fig. 3
Constituted constant-current charging phase is acted, its time-consuming possible more relatively long [i.e. T2＜ T2, T3,=T3+(T2,-T2), T4,=T4+
(T2,-T2)], but it can effectively lift charge efficiency.
It is preferred that, can referring to Fig. 4 in order to solve the problem of charging caused due to reduction charging current takes increase
Know, can be by increasing the charging current of the sub- constant-current charging phase shown in Fig. 3, such as by ICCIt is promoted to ICC, (such as 850mA or
900mA), thus can relatively reduced follow-up constant-current charging phase it is time-consuming.If for example, the constant-current charging phase shown in Fig. 2
Time-consuming (i.e. T2-T1) it is 2h, and the regulation charging stage shown in Fig. 3 may need to take (i.e. TX-T1) it is 1h, and in Fig. 3
Time-consuming (the i.e. T of follow-up constant-current charging phase2,-TX) 1.5h may be then needed, the constant-current charging phase shown in such Fig. 3
Total time-consuming (i.e. T2,-T1) 1h+1.5h=2.5h can be reached, it is so time-consuming just many compared to the constant-current charging phase shown in Fig. 2
2.5h-2h=0.5h time (i.e. T2,-T2)；If however, using the charging current of the constant-current charging phase shown in Fig. 4
ICC, then just by the constant-current charging phase subsequently carried out time-consuming, to be down to 1h even lower (carried out by taking time-consuming 1h as an example in Fig. 4
Illustrate), i.e., by increasing the charging current I of constant-current charging phaseCC, charging stage increased time-consuming counteracting can will be adjusted, very
It extremely can further reduce the time-consuming of whole charging stage.
Referring to shown in Fig. 2~Fig. 4, after constant-current charging phase, as cell voltage UBATRise to UCVWhen (such as 4.2V), then
Battery is charged using constant voltage, and charging current I nowCVIncrease with the charging interval and be gradually reduced and (such as subtract
As low as IPreOr lower), i.e., in T2~T3Period in, cell voltage is stable (or steady by battery electric quantity to rated voltage
The fixed memory capacity to maximum)；In T3~T4Period in, then stop charging, the whole charging operations of complete battery pair, and
Once follow-up cell voltage drops to UAV(such as 4V) below when, then according to current battery level UBATValue restart above-mentioned Fig. 2
Corresponding charging stage shown in~Fig. 4, and the operation that can move in circles successively.
It should be noted that in embodiments herein, the judgement of each charging stage can be according to time or magnitude of voltage
Divided, but the node parameter divided can be positioned at may be alternatively located at next stage, in not self-contradictory premise on last stage
Under, the adjustment of adaptability can be carried out, in order to actual application.Further, since not deposited between cell voltage and battery capacity
In strict linear relationship, it is (relative if battery capacity gets over big battery voltage that certain relation is presented in change main trend in it
It is higher), so can be worked as by gathering mass data and above-mentioned each voltage threshold being set based on big data analysis and is obtained
The value of preceding cell voltage.So, also can be by the charging operations based on battery capacity progress above-mentioned each stage, such as in constant-current charge
Early stage and battery current capacities be less than battery rated capacity preset ratio (such as 5%~20%) when, using regulation electric current
Battery is adjusted the charging operations in stage.
Fig. 5 is the flow chart of another embodiment of charge control method of battery of the present invention；As shown in figure 5, the present invention is another
Embodiment additionally provides a kind of charge control method of battery, on the basis of being illustrated based on above-mentioned Fig. 1~Fig. 4 and its correlation,
It may include following steps：
Step S21：Start charging operations.
Such as charger is plugged on portable electric appts and power supply respectively, so as to obtain the electricity on portable electric appts
Pond is connected with power supply.
Step S22：Whether it is in the starting preset time period of constant-current charging phase.
For example judge whether present battery charging is in constant-current charging phase：Such as can be according to the charge capacity of present battery
Electrical parameter judges its whether corresponding constant-current charging phase entered under linear charge mode；If so, then continue step S23, it is no
Then, then step S24 is continued.
Step S23：Adjust power saving stage.
Using regulation electric current IXBattery is adjusted the charging operations of charging stage, to cause battery charging to enter regulation
Charging stage.
Step S24：Other charging stages.
According to current battery level UBATValue and other charging stage threshold voltages relation, carry out other charging stages
The charging operations of (such as pre-charging stage, constant-current charging phase or constant voltage charging phase), can specifically participate in above-mentioned Fig. 3~Fig. 4
And its related elaboration content, in order to avoid repeating, just it will not go into details herein.
Fig. 6 is the flow chart of the charge control method another embodiment of battery of the present invention；As shown in fig. 6, the present invention is another
Embodiment additionally provides a kind of charge control method of battery, on the basis of being illustrated based on above-mentioned Fig. 1~Fig. 4 and its correlation,
It may include following steps：
Step S31：Start charging operations.
Such as charger is plugged on portable electric appts and power supply respectively, so as to obtain the electricity on portable electric appts
Pond is connected with power supply.
Step S32：Detect cell voltage.
While step S31 is carried out or followed by, detect and obtain current battery level UBAT；
Step S33：UCC＜ UBAT≤UX
Judge above-mentioned cell voltage UBATWhether between constant-current charge voltage threshold UCCWith regulation charging voltage threshold value UXIt
Between (as judged UBATWhether U is metCC＜ UBAT≤UXOr UBAT∈(UCC, UX])；If meeting (" Y " i.e. shown in Fig. 6), after
Continuous step S4；Otherwise (" N " i.e. shown in Fig. 6), step S35 is continued.
Step S34：Regulation charging.
Using regulation electric current IXBattery is adjusted the charging operations of charging stage.
Step S35：Other charging stages.
According to current battery level UBATValue and other charging stage threshold voltages relation, carry out other charging stages
The charging operations of (such as pre-charging stage, constant-current charging phase or constant voltage charging phase), can specifically participate in above-mentioned Fig. 3~Fig. 4
And its related elaboration content, in order to avoid repeating, just it will not go into details herein.
Fig. 7 is the structural representation of the battery charge controller embodiment of battery of the present invention, and Fig. 8 is based on battery shown in Fig. 7
Battery charge controller in control module structural representation；Referring to shown in Fig. 7~Fig. 8, based on above-mentioned Fig. 1~Fig. 6 and its phase
Close on the basis of illustrating, the battery charge controller for the battery that the present embodiment is provided may include charge power supply 1, charging module 2, electricity
Pond 3, detection module 4 and control module 5；Battery 3 passes through charging module 2 and the power electric connection of charge power supply 1, battery 3, detection mould
Block 4, control module 5 and charging module 2 communicate connection successively.Charge power supply 1 can be civil power (AC) or USB dc sources
Deng, and the electric energy that charging module 2 then may include the components such as transformer so that charge power supply 1 to be exported is converted to and matched with battery 3
Specification, battery 3 then can on portable electric appts etc. battery (such as lithium battery) to be charged, detection module 4 is energy
The charge capacity of the current voltage of enough directly detection batteries or present battery, and charge capacity can be converted to corresponding voltage transmission
To control module 5；Wherein, while battery 3 is electrically connected by charging module 2 with charge power supply 1, detection module 4 is examined in real time
Survey the voltage U of present battery 3BATAnd send to control module 5, control module 5 is by the cell voltage U receivedBATWith prestoring
Voltage threshold is compared, and sends corresponding control instruction to charging module 2 according to comparison result, and charging module 2 is according to connecing
The control instruction received exports the charging operations of the progress correspondence charging stage of current versus cell 3 of corresponding electrical parameter.For example,
Control module 5 is according to the cell voltage U from the detection acquisition in real time of detection module 4BATThe charging current of charging module 2 is adjusted, and is worked as
UCC＜ UBAT≤UXWhen, using regulation electric current IXCharging operations are adjusted to battery.
It is preferred that, above-mentioned control module 5 may include to communicate the control unit 51 of connection, judging unit 52 and storage successively
Unit 53, and the communication of detection module 4 and judging unit 52 be connected, control unit 51 is communicated with charging module 2 and is connected；Judging unit
52 according to the U obtained in real time from detection module 4BATAnd the threshold voltage stored in memory cell 53 come judge battery 3 need progress
Charging stage, the judged result that control unit 51 is then exported according to judging unit 52 transfers from memory cell 51 and sends phase
To charging module 2, (control unit 51 can also directly transmit corresponding control instruction to charging module 2 to the charging current value answered, and fill
The electric energy that electric module 2 then exports corresponding electrical parameter according to control instruction carries out charging operations to battery) so that charging module 2
Corresponding charging operations are carried out to battery 3.
Wherein, the electrical parameters such as above-mentioned each voltage threshold and current value can be prestored in above-mentioned memory cell 51
(such as UCC、UX、UCV、IPre、IXAnd ICCDeng)；Memory cell 51 can be any storage medium；It is preferred that can be by the side of software programming
Formula is modified to each electrical parameter value stored in storage medium.Above-mentioned modules and unit are (i.e. except power supply and electricity
Part outside pond) can a part be integrated on charger, another part is integrated on a portable electronic device, certainly also can be whole
It is integrated on charger and constitutes intelligent charger, subsequently only can changes each charging stage by way of software is controlled
Electrical parameter such as threshold voltage and charging current etc., and then facilitate the factors such as loss and use time of the charger according to battery to carry
For the suitable charging current of battery, come the service life accelerated follow-up charging operations and extend battery.
It should be noted that in embodiments of the present invention, each above-mentioned threshold voltage, charging current etc. can be according to differences
The battery of electrical parameter carries out accommodation, and shown concrete numerical value is only to a certain electrical parameter in embodiments
Battery carries out illustrating for charging operations.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can lead to
The related hardware of programmed instruction is crossed to complete.Foregoing program can be stored in a computer read/write memory medium.The journey
Sequence upon execution, performs the step of including above-mentioned each method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of charge control method of battery, it is characterised in that methods described is applied to the linear charge mode of the battery
Under, methods described includes：
The battery is charged, and determines whether the battery meets preparatory condition；
When the battery meets preparatory condition, the battery is charged using regulation electric current；
Wherein, the regulation electric current is less than the constant-current charge electric current of the battery and more than the pre-charge current of the battery.
2. the method as described in claim 1, it is characterised in that the battery meets preparatory condition, including：The battery is entered
In starting preset time period of the row charging in constant-current charging phase.
3. method as claimed in claim 2, it is characterised in that the battery meets preparatory condition, including：The battery work as
Preceding capacity is less than the preset ratio of the battery rated capacity.
4. method as claimed in claim 3, it is characterised in that the preset ratio is 5%~20%.
5. the method as described in claim 1, it is characterised in that methods described also includes：
The voltage of the battery is detected in real time；
The battery meets preparatory condition, including：UCC＜ UBAT≤UX＜ UCV；
Wherein, the UCCThe voltage threshold of constant-current charge, the U are carried out for the batteryBATFor the voltage of presently described battery,
The UXThe voltage threshold of charging, the U are adjusted for the batteryCVThe voltage threshold of constant-voltage charge is carried out for the battery
Value.
6. method as claimed in claim 5, it is characterised in that also include：
Based on big data analysis, the U is determined according to the charge efficiency that the battery chargesXValue.
7. method as claimed in claim 5, it is characterised in that described to be charged using regulation electric current to the battery, is wrapped
Include：
The battery is charged using the regulation electric current in the way of constant current.
8. a kind of battery charge controller of battery, it is characterised in that set applied to using linear charge mode to portable electronic
During standby middle battery is charged, described device includes charging module, control module and the detection module being sequentially connected, institute
It is connected respectively with the charging module and the detection module when stating battery charging；
The control module adjusts the charging mould according to the voltage for the battery for detecting acquisition in real time from the detection module
The charging current of block, and UCC＜ UBAT≤UXWhen, charging is adjusted to the battery using regulation electric current；
Wherein, UCC＜ UX＜ UCV, IPre＜ IX＜ ICC, the UCCThe voltage threshold of constant-current charge is carried out for the battery, it is described
UBATFor the voltage of presently described battery, the UXThe voltage threshold of charging, the U are adjusted for the batteryCVFor the electricity
Pond carries out the voltage threshold of constant-voltage charge, the IPreEnter the current value of line precharge, the I for the batteryXFor regulation electricity
Stream, the ICCEnter the current value of line precharge for the battery.
9. device as claimed in claim 8, it is characterised in that control unit that the control module includes being sequentially connected, sentence
Disconnected unit and memory cell, the judging unit are connected with the detection module, and described control unit connects with the charging module
Connect：
Wherein, the judging unit is according to the U obtained in real time from the detection unitBATAnd stored in the memory cell
Charging stage for being carried out to judge the battery to need of threshold voltage, described control unit exports according to the judging unit
Judged result is transferred from the memory cell and sends corresponding charging current value to the charging module, so that the charging
Module carries out corresponding charging operations to the battery.
10. device as claimed in claim 9, it is characterised in that the charging module is in the way of constant current using regulation electric current
The battery is charged.
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| CN201710399382.3A CN107171384A (en) | 2017-05-31 | 2017-05-31 | The charge control method and device of battery |
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| WO2019056607A1 (en) * | 2017-09-19 | 2019-03-28 | 上海斐讯数据通信技术有限公司 | Smart socket-based charging protection method, and smart socket |
| CN109980732A (en) * | 2019-04-01 | 2019-07-05 | 漳州科华技术有限责任公司 | Charging and discharging lithium battery control method and power supply system |
| CN109995105A (en) * | 2019-03-18 | 2019-07-09 | 深圳欣旺达智能科技有限公司 | Ladder charging method, system and computer equipment |
| WO2019157844A1 (en) * | 2018-02-13 | 2019-08-22 | 中兴通讯股份有限公司 | Charging method and apparatus, system, charging circuit, terminal and charging system |
| CN112026559A (en) * | 2019-06-04 | 2020-12-04 | 比亚迪股份有限公司 | Vehicle and control method, device and equipment of power supply system |
| CN114374237A (en) * | 2020-10-16 | 2022-04-19 | 苏州福瑞思信息科技有限公司 | Charging device, charging method and mobile power supply |
| CN115347624A (en) * | 2021-05-13 | 2022-11-15 | 北京小米移动软件有限公司 | TWS earphone charging method and device, TWS earphone, charging box and storage medium |
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| CN115347624A (en) * | 2021-05-13 | 2022-11-15 | 北京小米移动软件有限公司 | TWS earphone charging method and device, TWS earphone, charging box and storage medium |
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