CN104112878A - Method and device for determining charging time and electronic device - Google Patents
Method and device for determining charging time and electronic device Download PDFInfo
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- CN104112878A CN104112878A CN201310135260.5A CN201310135260A CN104112878A CN 104112878 A CN104112878 A CN 104112878A CN 201310135260 A CN201310135260 A CN 201310135260A CN 104112878 A CN104112878 A CN 104112878A
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- battery
- charging
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- charge stage
- charging interval
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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- 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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
An embodiment in the invention discloses a method for determining a charging time. The method includes following steps: acquiring a present electric quantity L and a total electric quantity M of a battery during a charging process; if the present electric quantity L is no more than a preset electric quantity threshold value C, calculating a charging time t1 of a current-constant charging stage of the battery from the present electric quantity L to the electric quantity threshold value C and a charging time t2 of a voltage-constant charging stage of the battery from the electric quantity threshold value C to the total electric quantity M; and determining a required remaining time X for completing a charging process for the battery according to the charging time t1 of the current-constant charging stage and the charging time t2 of the voltage-constant charging stage. The embodiment in the invention also discloses a device for determining the charging time and an electronic device. By means of the method, the device and the electronic device, accuracy of calculation of the charging time of battery can be increased.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of charging interval and determine method and apparatus, electronic equipment.
Background technology
Terminal equipment such as mobile phones etc., due to portable and ambulant requirement, adopt battery to power conventionally.Battery in use for some time, needs user to charge to meet power demands to battery.
In prior art, the change information of battery electric quantity can be monitored in terminal equipment this locality, in this change information, comprise current electric quantity information, for example: battery electric weight last time is total electric weight 20%, this electric weight is 21% of total electric weight, the charging of calculating electric weight change 1% is consuming time, and then the rough estimating battery of method by equal proportion charges to required remaining time of 100% of total electric weight from current electric quantity.
Battery of mobile phone is roughly divided into three phases in whole charging process, be respectively constant current charge, constant voltage charge, trickle charge, in this three phases, voltage is to tend to stablize, may ultimately reach 4.1-4.2v, in charging interval in constant current charge stage apparently higher than the constant voltage charge stage, in addition for the self discharge behavior of balancing battery itself, at constant voltage charge after the stage, within following 30-40 minute, be defined as trickle charge, thus according to every 1% consuming timely estimate that being full of the consuming time of electricity is not obviously very accurately.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, provides a kind of charging interval to determine method and apparatus, electronic equipment.Inaccurate deficiency is calculated in the charging that can solve battery in prior art remaining time.
In order to solve the problems of the technologies described above, the invention provides a kind of charging interval and determine method, comprising:
Obtain current electric quantity L and total electric weight M of battery in charging process;
If described current electric quantity L is no more than preset power threshold C, calculate charging interval t1 and the charging interval t2 in the constant voltage charge stage of described battery from described power threshold C to described total electric weight M in the constant current charge stage of described battery from described current electric quantity L to described power threshold C;
According to the charging interval t2 in the charging interval t1 in the constant current charge stage of described battery and constant voltage charge stage, be defined as described battery and complete required X remaining time of charging.
Correspondingly, the present invention also provides a kind of charging interval determining device, comprising:
Acquisition module, for obtaining current electric quantity L and total electric weight M of charging process battery;
Constant-current phase computing module, if be no more than preset power threshold C for described current electric quantity L, calculate charging interval t1 and the charging interval t2 in the constant voltage charge stage of described battery from described power threshold C to described total electric weight M in the constant current charge stage of described battery from described current electric quantity L to described power threshold C;
The first determination module, completes required X remaining time of charging for be defined as described battery according to the charging interval t2 in the charging interval t1 in the constant current charge stage of described battery and constant voltage charge stage.
Correspondingly, the present invention also provides a kind of electronic equipment, comprises above-mentioned any charging interval determining device.
Implement the embodiment of the present invention, there is following beneficial effect:
By calculating battery, in different charging stages in the required charging interval, determine that battery is full of electricity required remaining time, and by the unit quantity of electricity charging interval, determine that battery is full of electricity and compares required remaining time in prior art, calculate more accurate.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic flow sheet of a kind of charging interval of the embodiment of the present invention determining method;
Fig. 2 is another schematic flow sheet of a kind of charging interval of the embodiment of the present invention determining method;
Fig. 3 is the structural representation of a kind of charging interval determining device of the embodiment of the present invention;
Fig. 4 is another structural representation of a kind of charging interval determining device of the embodiment of the present invention;
Fig. 5 is the structural representation of constant-current phase computing module in Fig. 4.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Referring to Fig. 1, for a kind of charging interval of the embodiment of the present invention is determined the schematic flow sheet of method, the method comprises:
Step 101, the current electric quantity L that obtains battery in charging process and total electric weight M.
Concrete, charging interval determining device is measured the current voltage at battery two ends, determines the current electric quantity of battery according to the mapping relations of voltage and battery electric quantity; Or charging interval determining device is measured the current electric current at battery two ends, adopt the current electric quantity of the method for current current integration being calculated to battery.Definite method of battery current electric quantity is not limited to this, can also have additive method, and the present invention is not restricted.Charging interval determining device is obtained the current electric quantity L of the battery calculating and total electric weight M of battery.
If step 102 current electric quantity L is no more than preset power threshold C, calculate battery charging interval t1 and the charging interval t2 in the constant voltage charge stage of battery from power threshold C to total electric weight M in the constant current charge stage from current electric quantity L to power threshold C.
Concrete, when the current electric quantity L of charging interval determining device judgement battery is no more than preset power threshold C, the electric quantity change of monitoring battery in charging process, determine that the stage that battery charges to power threshold C from current electric quantity L is the constant current charge stage, the stage that the heavy power threshold C of battery charges to total electric weight M is the constant voltage charge stage, calculates the charging interval t1 in constant current charge stage and the charging interval t2 of constant-voltage phase.
Step 103, according to the charging interval t2 in the charging interval t1 in the constant current charge stage of battery and constant voltage charge stage, be defined as battery and complete required X remaining time of charging.
Implement embodiments of the invention, by calculating battery, in different charging stages in the required charging interval, determine that battery is full of electric required remaining time, with in prior art, by the unit quantity of electricity charging interval, determine that battery is full of electricity and compares required remaining time, calculate more accurate.
Referring to Fig. 2, for a kind of charging interval of the embodiment of the present invention is determined another schematic flow sheet of method, the method comprises:
Step 201, the current electric quantity L that obtains battery in charging process and total electric weight M.
Concrete, determining device charging interval in charging interval determining device is measured the current voltage at battery two ends, determines the current electric quantity of battery according to the mapping relations of voltage and battery electric quantity; Or charging interval determining device is measured the current electric current at battery two ends, adopt the current electric quantity of the method for current current integration being calculated to battery.Definite method of battery current electric quantity is not limited to this, can also have additive method, and the present invention is not restricted.Charging interval determining device is obtained the current electric quantity L of the battery calculating and total electric weight M of battery.For example, the current electric quantity L=900mAh of battery, total electric weight M=1500mAh of battery.
Step 202, judge that whether current electric quantity L surpasses preset power threshold C.
Concrete, judgement current electric quantity L surpasses preset power threshold C, execution step 203, otherwise, execution step 204.Power threshold C is the cut off value in constant-current charging of battery stage and constant voltage charge stage, if the current electric quantity L of battery is less than power threshold C, battery is in the constant current charge stage, otherwise battery is in the constant voltage charge stage, definite method of this power threshold C can by statistics method determine, for example power threshold C is 74% of total electric weight M, C=1500mAh*74%=1110mAh, but do not limit the method, the present invention can also use additive method to calculate.
Step 203, calculate battery at the unit quantity of electricity in the constant current charge stage T1 consuming time that charges.
Concrete, it can be to adopt in the constant current charge stage current electric quantity L1 that records battery in the charge method of T1 consuming time of the unit quantity of electricity in constant current charge stage that charging interval determining device is calculated battery, after the Δ T time, record again the current electric quantity L2 of battery, battery is at the unit quantity of electricity in the constant current charge stage T1=Δ T/(L2-L1 consuming time that charges), L≤L1 < L2 < C in formula, it is enough little that the general Δ T time is chosen.Preferably, in order to ensure the accuracy of T1, can adopt in the constant current charge stage and repeatedly sample and obtain abundant data, the data that then sampling obtained are averaged and are obtained the value of final T1.Calculate battery and do not limit the method at the unit quantity of electricity in the constant current charge stage T1 consuming time that charges, the present invention can also use additive method to calculate.
Step 204, determine that battery is in the constant voltage charge stage, and calculate battery at the unit quantity of electricity in the constant voltage charge stage T2 consuming time that charges.
Concrete, calculate battery similar to step 203 in the unit quantity of electricity in the constant voltage charge stage method of T2 consuming time of charging, herein Ao Shu no longer.
Step 205, according to charge T2 consuming time, total electric weight M and voltage threshold C of the unit quantity of electricity in battery constant voltage charge stage, be defined as battery and complete required X remaining time of charging.
Concrete, remaining time, the computing formula of X can be X=T2*(M-L), current electric quantity L=1200mAh for example, total electric weight M=1500mAh, voltage threshold C=1110mAh, the unit quantity of electricity in constant voltage charge stage charge T2=10s/mAh consuming time, X=10*(1500-1200) s=3000s.Be calculated as battery and complete required X remaining time of charging and do not limit the method, the present invention can also use additive method to calculate.
Be understandable that, battery can enter the trickle charge stage after the stage completing constant voltage charge, in order to estimate more accurately the charging interval of battery, need to revise in the time that adds a preset trickle charge stage value of above-mentioned X.
Step 206, according to charge T1 consuming time, current electric quantity L and power threshold C of the unit quantity of electricity in constant-current charging of battery stage, determine the charging interval t1 in the constant current charge stage of battery.
Concrete, the computational methods of the charging interval t1 in the constant current charge stage of battery can be T1*(C-L), for example, the current electric quantity L=900mAh of battery, total electric weight M=1500mAh of battery, power threshold C=1110mAh, T1=5s/mAh, t1=5*(1100-900)=1000s.
Step 207, according to the charge charging interval t2 in the constant voltage charge stage that T1 consuming time, described total electric weight M, preset charging interval penalty coefficient B and described power threshold C determine described battery of the unit quantity of electricity in described constant-current charging of battery stage.
Concrete, due to constant voltage charge stage and the constant current charge stage unit quantity of electricity difference consuming time of charging, need a charging interval penalty coefficient B to revise the charging interval in constant voltage charge stage, the computational methods of charging interval penalty coefficient B can be to determine at the unit quantity of electricity in constant voltage charge stage the charge ratio of T1 consuming time of T2 consuming time and the unit quantity of electricity in constant current charge stage that charges according to battery, for example B=T2/T1=2.
The computational methods of the charging interval t2 in constant voltage charge stage are t2=B*T1*(M-C)=2*5* (1500-1110)=3900s.
Step 208, according to the charging interval t2 in the charging interval t1 in the constant current charge stage of battery and constant voltage charge stage, be defined as battery and complete required X remaining time of charging.
Concrete, X=t1+t2=T1*(C-L)+B*T1*(M-C)=1000s+3900s=4900s.
Be understandable that, battery can enter the trickle charge stage after the stage completing constant voltage charge, in order to estimate more accurately the charging interval of battery, need to revise in the time that adds a preset trickle charge stage value of above-mentioned X.
Implement embodiments of the invention, by calculating battery, in different charging stages in the required charging interval, determine that battery is full of electric required remaining time, with in prior art, by the unit quantity of electricity charging interval, determine that battery is full of electricity and compares required remaining time, calculate more accurate.
Referring to Fig. 3, be the structural representation of a kind of charging interval determining device of the embodiment of the present invention, this charging interval determining device 1 comprises:
Acquisition module 11, for obtaining current electric quantity L and total electric weight M of charging process battery.
Concrete, acquisition module 11 is measured the current voltage at battery two ends, determines the current electric quantity of battery according to the mapping relations of voltage and battery electric quantity; Or acquisition module 11 is measured the current electric current at battery two ends, adopts the current electric quantity of the method for current current integration being calculated to battery.Definite method of battery current electric quantity is not limited to this, can also have additive method, and the present invention is not restricted.Acquisition module 11 obtains the current electric quantity L of the battery calculating and total electric weight M of battery.
Constant-current phase computing module 12, if be no more than preset power threshold C for described current electric quantity L, calculate charging interval t1 and the charging interval t2 in the constant voltage charge stage of described battery from described power threshold C to described total electric weight M in the constant current charge stage of described battery from described current electric quantity L to described power threshold C.
Concrete, when the current electric quantity L of constant-current phase computing module 12 judgement batteries is no more than preset power threshold C, the electric quantity change of monitoring battery in charging process, determine that the stage that battery charges to power threshold C from current electric quantity L is the constant current charge stage, the stage that the heavy power threshold C of battery charges to total electric weight M is the constant voltage charge stage, calculates the charging interval t1 in constant current charge stage and the charging interval t2 of constant-voltage phase.
The first determination module 13, completes required X remaining time of charging for be defined as described battery according to the charging interval t2 in the charging interval t1 in the constant current charge stage of described battery and constant voltage charge stage.
Implement embodiments of the invention, by calculating battery, in different charging stages in the required charging interval, determine that battery is full of electric required remaining time, with in prior art, by the unit quantity of electricity charging interval, determine that battery is full of electricity and compares required remaining time, calculate more accurate.
Further, referring to Fig. 4-Fig. 5, be another structural representation of a kind of charging interval determining device of the embodiment of the present invention, this charging interval determining device 1, except comprising acquisition module 11, constant-current phase computing module 12 and the first determination module 13, also comprises:
Constant-voltage phase computing module 14, if while surpassing preset power threshold C for described current electric quantity L, determine that described battery is in the constant voltage charge stage, and calculates described battery at the unit quantity of electricity in the constant voltage charge stage T2 consuming time that charges.
Concrete, it can be to adopt in the constant current charge stage current electric quantity L1 that records battery in the charge method of T2 consuming time of the unit quantity of electricity in constant current charge stage that constant-voltage phase computing module 14 calculates batteries, after the Δ T time, record again the current electric quantity L2 of battery, battery is at the unit quantity of electricity in the constant current charge stage T2=Δ T/(L2-L1 consuming time that charges), L≤L1 < L2 < C in formula, it is enough little that the general Δ T time is chosen.Preferably, in order to ensure the accuracy of T1, can adopt in the constant current charge stage and repeatedly sample and obtain abundant data, the data that then sampling obtained are averaged and are obtained the value of final T2.Calculate battery and do not limit the method at the unit quantity of electricity in the constant current charge stage T2 consuming time that charges, the present invention can also use additive method to calculate.
The second determination module 15, is defined as described battery for the T2 consuming time that charges according to the unit quantity of electricity in described battery constant voltage charge stage, described total electric weight M and described voltage threshold C and completes required X remaining time of charging.
Concrete, the formula that the second determination module 15 calculates X remaining time can be X=T2*(M-L), current electric quantity L=1200mAh for example, total electric weight M=1500mAh, voltage threshold C=1110mAh, the unit quantity of electricity in constant voltage charge stage charge T2=10s/mAh consuming time, X=10*(1500-1200) s=3000s.Be calculated as battery and complete required X remaining time of charging and do not limit the method, the present invention can also use additive method to calculate.
Be understandable that, battery can enter the trickle charge stage after the stage completing constant voltage charge, in order to estimate more accurately the charging interval of battery, need to revise in the time that adds a preset trickle charge stage value of above-mentioned X.
Wherein, constant-current phase computing module 12 comprises:
Unit quantity of electricity computing unit 121 consuming time, for calculating described battery at the unit quantity of electricity in the constant current charge stage T1 consuming time that charges;
Constant current charge time determining unit 122, determines the charging interval t1 in the constant current charge stage of described battery for charge according to the unit quantity of electricity in described constant-current charging of battery stage T1 consuming time, described current electric quantity L and described power threshold C;
Constant voltage charging time determining unit 123, the charging interval t2 in the constant voltage charge stage of determining described battery for the T1 consuming time that charges according to the unit quantity of electricity in described constant-current charging of battery stage, described total electric weight M, preset charging interval penalty coefficient B and described power threshold C.
Implement embodiments of the invention, by calculating battery, in different charging stages in the required charging interval, determine that battery is full of electric required remaining time, with in prior art, by the unit quantity of electricity charging interval, determine that battery is full of electricity and compares required remaining time, calculate more accurate.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, to come the hardware that instruction is relevant to complete by computer program, described program can be stored in a computer read/write memory medium, this program, when carrying out, can comprise as the flow process of the embodiment of above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
Above disclosed is only a kind of preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, one of ordinary skill in the art will appreciate that all or part of flow process that realizes above-described embodiment, and the equivalent variations of doing according to the claims in the present invention, still belong to the scope that invention is contained.
Claims (11)
1. the charging interval is determined a method, it is characterized in that, comprising:
Obtain current electric quantity L and total electric weight M of battery in charging process;
If described current electric quantity L is no more than preset power threshold C, calculate charging interval t1 and the charging interval t2 in the constant voltage charge stage of described battery from described power threshold C to described total electric weight M in the constant current charge stage of described battery from described current electric quantity L to described power threshold C;
According to the charging interval t2 in the charging interval t1 in the constant current charge stage of described battery and constant voltage charge stage, be defined as described battery and complete required X remaining time of charging.
2. the method for claim 1, it is characterized in that, the step of the charging interval t2 in the charging interval t1 in the constant current charge stage of the described battery of described calculating from described current electric quantity L to described power threshold C and the described battery constant voltage charge stage from described power threshold C to described total electric weight M comprises:
Calculate described battery at the unit quantity of electricity in the constant current charge stage T1 consuming time that charges;
According to charge T1 consuming time, described current electric quantity L and described power threshold C of the unit quantity of electricity in described constant-current charging of battery stage, determine the charging interval t1 in the constant current charge stage of described battery;
According to the charge charging interval t2 in the constant voltage charge stage that T1 consuming time, described total electric weight M, preset charging interval penalty coefficient B and described power threshold C determine described battery of the unit quantity of electricity in described constant-current charging of battery stage.
3. method as claimed in claim 2, is characterized in that, the described battery of described calculating comprises in the charge method of T1 consuming time of the unit quantity of electricity in constant current charge stage:
Obtain N described battery in the unit quantity of electricity in the constant current charge stage data consuming time of charging;
Calculate the mean value of a described N data as the value of T1.
4. the method as described in claim 1-3 any one, is characterized in that, also comprises:
If when described current electric quantity L surpasses preset power threshold C, determine that described battery is in the constant voltage charge stage, and calculate described battery at the unit quantity of electricity in the constant voltage charge stage T2 consuming time that charges;
According to charge T2 consuming time, described total electric weight M and described voltage threshold C of the unit quantity of electricity in described battery constant voltage charge stage, be defined as described battery and complete required X remaining time of charging.
5. method as claimed in claim 4, is characterized in that, the computational methods of described charging interval penalty coefficient B comprise:
According to described battery, at the unit quantity of electricity in constant voltage charge stage the charge ratio of T1 consuming time of T2 consuming time and the unit quantity of electricity in constant current charge stage that charges, determine described charging interval penalty coefficient B.
6. a charging interval determining device, is characterized in that, comprising:
Acquisition module, for obtaining current electric quantity L and total electric weight M of charging process battery;
Constant-current phase computing module, if be no more than preset power threshold C for described current electric quantity L, calculate charging interval t1 and the charging interval t2 in the constant voltage charge stage of described battery from described power threshold C to described total electric weight M in the constant current charge stage of described battery from described current electric quantity L to described power threshold C;
The first determination module, completes required X remaining time of charging for be defined as described battery according to the charging interval t2 in the charging interval t1 in the constant current charge stage of described battery and constant voltage charge stage.
7. device as claimed in claim 6, is characterized in that, described constant-current phase computing module comprises:
Unit quantity of electricity computing unit consuming time, for calculating described battery at the unit quantity of electricity in the constant current charge stage T1 consuming time that charges;
Constant current charge time determining unit, determines the charging interval t1 in the constant current charge stage of described battery for charge according to the unit quantity of electricity in described constant-current charging of battery stage T1 consuming time, described current electric quantity L and described power threshold C;
Constant voltage charging time determining unit, the charging interval t2 in the constant voltage charge stage of determining described battery for the T1 consuming time that charges according to the unit quantity of electricity in described constant-current charging of battery stage, described total electric weight M, preset charging interval penalty coefficient B and described power threshold C.
8. device as claimed in claim 7, is characterized in that, described unit quantity of electricity computing unit consuming time is for obtaining N described battery in the unit quantity of electricity in the constant current charge stage data consuming time of charging; Calculate the mean value of a described N data as the value of T1.
9. the device as described in claim 6-8 any one, is characterized in that, also comprises:
Constant-voltage phase computing module, if while surpassing preset power threshold C for described current electric quantity L, determine that described battery is in the constant voltage charge stage, and calculates described battery at the unit quantity of electricity in the constant voltage charge stage T2 consuming time that charges;
The second determination module, is defined as described battery for the T2 consuming time that charges according to the unit quantity of electricity in described battery constant voltage charge stage, described total electric weight M and described voltage threshold C and completes required X remaining time of charging.
10. device as claimed in claim 9, it is characterized in that, described constant voltage charging time determining unit is for determining described charging interval penalty coefficient B according to described battery at the unit quantity of electricity in constant voltage charge stage the charge ratio of T1 consuming time of T2 consuming time and the unit quantity of electricity in constant current charge stage that charges.
11. 1 kinds of electronic equipments, is characterized in that, comprise the charging interval determining device as described in claim 6-10 any one.
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