CN106685015B - Charging method, charging unit and electronic device - Google Patents
Charging method, charging unit and electronic device Download PDFInfo
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- CN106685015B CN106685015B CN201710150531.2A CN201710150531A CN106685015B CN 106685015 B CN106685015 B CN 106685015B CN 201710150531 A CN201710150531 A CN 201710150531A CN 106685015 B CN106685015 B CN 106685015B
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000007667 floating Methods 0.000 claims abstract description 24
- 238000001514 detection method Methods 0.000 claims description 22
- 230000005611 electricity Effects 0.000 claims description 18
- 206010037660 Pyrexia Diseases 0.000 abstract description 6
- 230000008569 process Effects 0.000 description 7
- 229910052987 metal hydride Inorganic materials 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 241000208340 Araliaceae Species 0.000 description 3
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 3
- 235000003140 Panax quinquefolius Nutrition 0.000 description 3
- 235000008434 ginseng Nutrition 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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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
-
- 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
-
- H02J7/0086—
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Power Engineering (AREA)
- 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)
- Secondary Cells (AREA)
Abstract
The invention discloses a kind of charging method of battery, charging unit and electronic devices.Charging method is the following steps are included: detect the voltage of battery.When the voltage of battery is over-discharge voltage, floating charge is carried out to battery.When the voltage of battery is normal use voltage, constant current is carried out to battery and is filled.Judge whether battery generates pressure drop during constant current is filled.If battery generates pressure drop during constant current is filled, stop charging to battery.If battery does not generate pressure drop during constant current is filled and the voltage of battery reaches voltage threshold, after keeping the constant one section of setting duration of voltage, judge whether battery generates pressure drop.If the voltage of battery does not generate pressure drop, constant pressure is carried out to battery and is filled；If the voltage of battery generates pressure drop, stop charging to battery.The charging method of embodiment of the present invention selects the different charging modes that charge to battery according to voltage, ensure that battery reaches real full power state, and filled using constant pressure charge the battery during battery will not generate fever phenomenon.
Description
Technical field
The present invention relates to battery boosting technology more particularly to a kind of charging methods of battery, charging unit and electronic device.
Background technique
In the related art, it is generally filled using the such as constant current of single charging modes and is charged to battery, such mode
It can make charging relatively slowly and due to battery is full of judgment mechanism, battery possibly can not be really full of, and lead to making for battery
With the shorter usage experience to influence user of duration.
Summary of the invention
Embodiment of the present invention provides a kind of charging method, charging unit and electronic device.
The charging method of embodiment of the present invention the following steps are included:
Detect the voltage of the battery；
When the voltage of the battery is over-discharge voltage, floating charge is carried out to the battery；
When the voltage of the battery is normal use voltage, constant current is carried out to the battery and is filled；
Judge whether the battery generates pressure drop during the constant current is filled；
If the battery generates pressure drop during the constant current is filled, stop charging to the battery；
If the battery does not generate pressure drop during the constant current is filled and the voltage of the battery reaches voltage threshold, protect
After holding the constant one section of setting duration of charging voltage of the battery, judge whether the battery generates pressure drop；
If the voltage of the battery does not generate pressure drop, constant pressure is carried out to the battery and is filled；
If the voltage of the battery generates pressure drop, stop charging to the battery.
In the charging method of the battery of embodiment of the present invention, filled according to the difference that the selection of the voltage of battery charges to battery
Electric mode ensure that battery reaches real full power state, and then ensure that the electricity consumption duration of battery, and fill to electricity using constant pressure
Pond is charged, and be ensure that the voltage of battery is certain value, will not be generated fever phenomenon in battery charging process.
In some embodiments, the charging method is further comprising the steps of:
Timing when constant pressure is filled is carried out in the battery and obtains the first duration, and timing obtains when the battery is charged
Second duration；
When first duration reaches the first given threshold or second duration reaches the second given threshold, stop
It charges to the battery.
In some embodiments, described the step of filling to battery progress constant current, includes:
Constant current is carried out to the battery using the charging modes of pulse-width-modulated current or the charging modes of common current
It fills.
In some embodiments, whether judgement battery during the constant current is filled generates the step of pressure drop
Suddenly, comprising:
When being charged using the charging modes of pulse-width-modulated current to the battery, in the pulse width tune
The voltage of the battery is detected when the low level of the charging modes of electric current processed and compares the voltage and the voltage threshold
Compared with judging whether the battery generates pressure drop；
When charging using the charging modes of common current to the battery, the electricity is detected using sliding summation
The voltage in pond is simultaneously compared the sum of the voltage, judges whether the battery generates pressure drop.
In some embodiments, the floating charge and the constant pressure fill the charging side for being all made of pulse-width-modulated current
Formula, wherein the first current value of charging current used by the constant current is filled is greater than the floating charge and the constant pressure is filled and used
Charging current the second current value.
In some embodiments, first current value be circuit in allow by maximum current value, described second
Current value arrives one third for 1/5th of the maximum current value.
In some embodiments, 30-40 minutes a length of when the setting.
For charging to battery, the charging unit includes: the charging unit of embodiment of the present invention
Detection module, the detection module are used to detect the voltage of the battery；
Control module, when the detection module detects that the voltage of the battery is over-discharge voltage, the control module
For carrying out floating charge to the battery；
When the detection module detect the battery voltage be normal use voltage when, the control module for pair
The battery carries out constant current and fills；
The control module is for judging whether the battery generates pressure drop during the constant current is filled；
If the battery generates pressure drop during the constant current is filled, the control module fills the battery for stopping
Electricity；
If the battery does not generate pressure drop and when the voltage of the battery reaches voltage threshold during the constant current is filled
When, whether the control module is for judging the battery after keeping the constant one section of setting duration of the charging voltage of the battery
Generate pressure drop；
If the voltage of the battery does not generate pressure drop, the control module is used to carry out constant pressure to the battery to fill；
If the voltage of the battery generates pressure drop, the control module charges to the battery for stopping.
In the charging unit of embodiment of the present invention, control module selects the difference to charge to battery according to the voltage of battery
Charging modes ensure that battery reaches real full power state, and then ensure that the electricity consumption duration of battery, and be filled pair using constant pressure
Battery charges, and ensure that the voltage of battery is certain value, will not generate fever phenomenon in battery charging process.
In some embodiments, during the constant current is filled, the control module is used to modulate using pulse width
The charging modes of electric current or the charging modes of common current carry out constant current to the battery and fill.
In some embodiments, during the constant current is filled, when the control module is used to use the pulse wide
When the charging modes of degree modulation electric current charge to the battery, the detection module is used to modulate electricity in the pulse width
The voltage of the battery is detected when the low level of the charging modes of stream, the control module is used for the voltage and the voltage
Threshold value is compared, and judges whether the battery generates pressure drop；
It is described when the control module is used to charge to the battery using the charging modes of the common current
Detection module is used to detect the voltage of the battery using sliding summation, the control module be used for the sum of the voltage into
Row compares, and judges whether the battery generates pressure drop.
In some embodiments, the floating charge and the constant pressure fill the charging side for being all made of pulse-width-modulated current
Formula, wherein the first current value of charging current used by the constant current is filled is greater than the floating charge and the constant pressure is filled and used
Charging current the second current value.
In some embodiments, the control module includes timing unit, and the timing unit is used in the battery
It carries out timing when constant pressure is filled and obtains the first duration, and timing obtains the second duration in battery charging；
The control module is used for, when first duration reaches the first given threshold or second duration reaches
When two given thresholds, stop charging to the battery.
The electronic device of embodiment of the present invention includes charging unit described in any embodiment as above.
In the electronic device of embodiment of the present invention, the different charging sides charged to battery are selected according to the voltage of battery
Formula ensure that battery reaches real full power state, and then ensure that the electricity consumption duration of battery, and using constant pressure fill to battery into
Row charging ensure that the voltage of battery is certain value, so that the battery of electronic device will not generate fever now during the charging process
As.
The additional aspect and advantage of embodiment of the present invention will be set forth in part in the description, partially will be from following
Become obvious in description, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention is from combining in description of the following accompanying drawings to embodiment by change
It obtains obviously and is readily appreciated that, in which:
Fig. 1 is the flow diagram of the charging method of embodiment of the present invention.
Fig. 2 is charging modes-V diagram in the charging method of embodiment of the present invention.
Fig. 3 is another charging modes-V diagram of the charging method of embodiment of the present invention.
Fig. 4 is the module diagram of the electronic device of embodiment of the present invention.
Main element symbol description:
Pressure drop Δ V, setting duration T, the first duration T1, the second duration T2, charging unit 10, detection module 12, control mould
Block 14, timing unit 142, battery 20, electronic device 200.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are only used for
Purpose is described, relative importance is not understood to indicate or imply or implicitly indicates the quantity of indicated technical characteristic.
" first " is defined as a result, the feature of " second " can explicitly or implicitly include one or more feature.?
In description of the invention, the meaning of " plurality " is two or more, unless otherwise specifically defined.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected or can mutually communicate；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements or the interaction relationship of two elements.For the ordinary skill of this field
For personnel, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the description of the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or
"lower" may include that the first and second features directly contact, also may include the first and second features be not direct contact but
Pass through the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above "
Fisrt feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First
Feature is directly below and diagonally below the second feature including fisrt feature under the second feature " below ", " below " and " below ", or only
Only indicate that first feature horizontal height is less than second feature.
Following disclosure provides many different embodiments or example is used to realize different structure of the invention.In order to
Simplify disclosure of the invention, hereinafter the component of specific examples and setting are described.Certainly, they are merely examples, and
And it is not intended to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, itself not indicate between discussed various embodiments and/or setting
Relationship.In addition, the present invention provides various specific techniques and material example, but those of ordinary skill in the art can be with
Recognize the application of other techniques and/or the use of other materials.
Please refer to Fig. 1-Fig. 3, a kind of charging method that embodiment of the present invention provides, comprising the following steps:
S1: the voltage of detection battery 20.
S2: when the voltage of battery 20 is over-discharge voltage, floating charge is carried out to battery 20.
S3: when the voltage of battery 20 is normal use voltage, constant current is carried out to battery 20 and is filled.
S4: judge whether battery 20 generates pressure drop Δ V during constant current is filled.
If battery 20 generates pressure drop Δ V, S5 during constant current is filled: stopping charging to battery 20.
If the voltage that battery 20 does not generate pressure drop Δ V and battery 20 during constant current is filled reaches voltage threshold, S6: protect
After holding the constant one section of setting duration T of voltage of battery 20, judge whether battery 20 generates pressure drop Δ V.
If the voltage of battery 20 does not generate pressure drop Δ V, S7: carrying out constant pressure to battery 20 and fill.
If the voltage of battery 20 generates pressure drop Δ V, S5: stopping charging to battery 20.
In the charging method of the battery 20 of embodiment of the present invention, charged according to the selection of the voltage of battery 20 to battery 20
Different charging modes ensure that battery 20 reaches real full power state, and then ensure that the electricity consumption duration of battery 20, and utilize
Constant pressure, which is filled, charges to battery 20, ensure that the voltage of battery 20 is certain value, will not generate hair in 20 charging process of battery
Thermal phenomenon.
Specifically, incorporated by reference to Fig. 2 and Fig. 3, minimum voltage when 20 normal use of battery is a, when 20 normal use of battery
Ceiling voltage be b, the charge cutoff voltage of battery 20 is c (not shown).Over-discharge voltage refer to [0, a) voltage in section；
Normal use voltage refers to the voltage in the section [a, b].C is greater than b.
In one embodiment, battery 20 uses nickel-metal hydride battery, can be used for the electronic devices such as portable type cleaner.One
Minimum voltage a=1V, ceiling voltage b=1.25V, charge cutoff voltage c=in a example, when nickel-metal hydride battery normal use
1.5V.When nickel-metal hydride battery voltage be located at [0,1V) section when, nickel-metal hydride battery is in over-discharge state.When nickel-metal hydride battery be in [1V,
1.25V] section when, nickel-metal hydride battery is in normal operating condition.
In embodiments of the present invention, floating charge refers to the charging modes to charge using low current to battery 20.Floating charge energy
Battery 20 in over-discharge state is carried out effectively to mend electricity, and is avoided that the protection circuit of triggering battery 20 and charging is caused to become
Slow situation.
The charging modes for referring to that the electric current to charge to battery 20 maintains steady state value are filled in constant current, and constant current, which is filled, quickly to improve
The voltage of battery 20 shortens the charging time of battery 20.
Constant pressure fills the charging modes for referring to that the voltage between 20 the two poles of the earth of battery maintains steady state value, is avoided that battery 20 is sent out
Heat ensure that the charging safety of battery 20.
Specifically, different charging modes can reach different targets (ginseng table 1), obtain the charging process of battery 20
Optimization.
Table 1
In table 1 signified high current be circuit in allow by maximum current, low current be high current 1/5th
To one third, specific value can be arranged according to actual needs.In other embodiments, it can also be used in the electric current in table 1
Its numerical value.
In some embodiments, Fig. 1 please be join, charging method is further comprising the steps of:
Timing when constant pressure is filled is carried out in battery 20 and obtains the first duration T1, and timing obtains the when battery 20 is charged
Two duration T2.When the first duration T1 reaches the first given threshold or the second duration T2 reaches the second given threshold, stop to electricity
It charges in pond 20.
In this way, be avoided that the charging time it is too long battery 20 is damaged, while also avoiding charging time too long possibility
The danger of initiation ensure that charging safety.
Specifically, the stop condition of different charging modes is different (ginseng table 2).
Table 2
Specifically, in an example of the invention, the first given threshold is 1.5-2.5 hours.Second given threshold with
The factors such as the size of the different model of battery 20, different capabilities and charging current and be specifically arranged, certainly, it is of the invention in addition
In embodiment, the first given threshold and the second given threshold can make other selection.
In some embodiments, carrying out the step of constant current is filled to battery 20 includes:
Using the charging modes of pulse width modulation (hereinafter referred to as PWM) electric current or the charging modes of common current to battery
20 progress constant currents are filled.
In this way, the charging modes of PWM electric current are easily achieved the accurate control to charging circuit.The charging modes of common current
Structure is simple, easily operated.
In some embodiments, the step of whether battery 20 generates pressure drop Δ V during constant current is filled judged, comprising:
When being charged using the charging modes of PWM electric current to battery 20, in the charging side of pulse-width-modulated current
The voltage of battery 20 is detected when the low level of formula and is compared the voltage of battery 20 and voltage threshold, whether judges battery 20
Generate pressure drop；When charging using the charging modes of common current to battery 20, battery 20 is detected using sliding summation
Voltage and be compared to by the sum for sliding the voltage of battery 20 that summation detects, judge whether battery 20 generates pressure
Δ V drops.
In this way, the voltage presentation of battery 20 gradually rises when due to using the charging modes of PWM electric current to charge to battery 20
Battery can be more accurately obtained so detecting 20 voltage of battery in the low level of pwm control signal with the circulation of decline
20 voltage, the voltage virtual height of battery 20 is when being not in adapter access to influence the case where judging.
Specifically, pwm signal can realize high level and low level by control.
Specifically, when detecting 20 voltage of battery, in the low level of pwm control signal, stop examining the charging of battery 20 again
Survey the voltage of battery 20.
Further, the method for the voltage that above-mentioned stopping detects battery 20 after charging to battery 20 again can be adopted by voltage
Sample circuit is realized.
In this way, easy to operate, precise control.
When being charged using the charging modes of common current to battery 20, it is to detect battery 20 using sliding summation
No generation pressure drop Δ V can be improved the accuracy of detection, so that battery 20 is really full of, and extend the continuous of battery 20
ETS estimated time of sailing.
Further, sliding summation can the voltage constantly to battery 20 be compared, voltage highest point is saved, and sentences
The situation of the fixed voltage decline for battery 20 whether occur.In one example, the concrete operations process for sliding summation is as follows: by
Timer takes continuous 10 to form a numerical value by the voltage value of the battery 20 at interval of 10ms, and constantly updates in cumulative array
Value, every time update one, then array is summed, and the sum acquired is compared, when the latter and than previous and small
When, i.e. there is the case where pressure drop Δ V in judgement.
For example, voltage value when charging time 10ms is taken to be denoted as x1, voltage value when charging time 20ms is taken to be denoted as
X2, take voltage value when charging time 30ms to be denoted as x3 ... and so on, take voltage value note when charging time 100ms
For x10；All voltage values of x1 to x10 are added, an array summation is obtained and is denoted as y1；When taking charging time 110ms again
Voltage value x11；All voltage values of x2 to x11 are added, another array summation is obtained and is denoted as y2, compare y1 and y2
Size, on the contrary if y2 is less than y1, there is pressure drop Δ V in judgement, then continue sliding and add up.
And so on.
In this way, sliding summation can not only get the variation tendency of current voltage, jitter value is also reduced for data
The influence of the accuracy of acquisition.
In some embodiments, floating charge and constant pressure fill the charging modes for being all made of PWM electric current, wherein constant current, which is filled, is adopted
First current value of charging current is greater than floating charge and constant pressure fills the second current value of used charging current.
In one example, the first current value herein is the high current being previously mentioned in upper table 1, the second current value herein
For the low current that upper table 1 is previously mentioned, the degree of specific size has elaborated above, and details are not described herein.
In some embodiments, the first current value be allow in circuit by maximum current value, the second current value is
/ 5th of maximum current value arrive one third.
In this way, filling the voltage that can effectively supplement in battery 20 using floating charge and constant pressure.Second current value of floating charge can make electricity
The voltage in pond 20 is restored to normal use voltage level as early as possible and is unlikely to trigger the self-protection element in charging circuit, again and again
Disconnecting circuit.The second current value that constant pressure is filled can continue to mend electricity to battery 20, and the voltage in battery 20 is made to reach real saturation
State.
Certainly, the size of the first current value and the second current value is not strictly limited to the size said above, but can be with
The case where according to charging circuit, battery 20 model make reasonable adjustment, to improve the charging rate of battery 20, protect simultaneously
Card charging safety.Meanwhile the second current value that the second current value and constant pressure of floating charge fill can also be equal or unequal.
In some embodiments, duration T is set as 30-40 minutes.
In this way, the time of selection 30-40 minutes can be suitably used for the battery 20 of most of type, and can more accurately select
Different charging modes, voltage may remain unchanged in a short time when battery 20 being avoided to charge, so as to cause the charging of mistake
Judgement.
Referring to FIG. 4, the charging unit 10 in embodiment of the present invention is used to charge to battery 20, charging unit 10
Including detection module 12 and control module 14.Detection module 12 is used to detect the voltage of battery 20.
When detection module 12 detects that the voltage of battery 20 is over-discharge voltage, control module 14 is used to carry out battery 20
Floating charge.
When detection module 12 detect battery 20 voltage be normal use voltage when, control module 14 be used for battery 20 into
Row constant current is filled.
Control module 14 is for judging whether battery 20 generates pressure drop Δ V during constant current is filled.
If battery 20 generates pressure drop Δ V during constant current is filled, control module 14 charges to battery 20 for stopping.
If battery 20 does not generate pressure drop Δ V and when the voltage of battery 20 reaches voltage threshold during constant current is filled, control
Molding block 14 is for judging whether battery 20 generates pressure drop Δ V after keeping the constant one section of setting duration T of the voltage of battery 20.
If the voltage of battery 20 does not generate pressure drop Δ V, control module 14 is used to carry out constant pressure to battery 20 to fill.If battery 20
Voltage generate pressure drop Δ V, control module 14 for stop to battery 20 charge.
In the charging unit 10 of embodiment of the present invention, control module 14 fills battery 20 according to the selection of the voltage of battery 20
The different charging modes of electricity, ensure that battery 20 reaches real full power state, and then ensure that the electricity consumption duration of battery 20, and
Control module 14 is filled using constant pressure charges to battery 20, ensure that the voltage of battery 20 is certain value, battery 20 charged
Fever phenomenon will not be generated in journey.
It should be pointed out that the explanation of the embodiment and beneficial effect of the above-mentioned charging method to battery 20,
Charging unit 10 suitable for present embodiment is no longer developed in details herein to avoid redundancy.
In some embodiments, during constant current is filled, control module 14 be used for using PWM electric current charging modes or
The charging modes of common current carry out constant current to battery 20 and fill.
In some embodiments, during constant current is filled, when control module 14 is used for the charging modes using PWM electric current
When charging to battery 20, detection module 12 is used to detect electricity in the low level of the charging modes of pulse-width-modulated current
The voltage in pond 20, control module 14 judge whether battery 20 generates for the voltage of battery 20 and voltage threshold to be compared
Pressure drop；
When control module 14 is used to charge to battery 20 using the charging modes of common current, detection module 12 is used
In the voltage using sliding summation detection battery 20, control module 14 judges battery 20 for being compared to the sum of voltage
Whether pressure drop is generated.
Specifically, sliding summation has statement above, and details are not described herein.
In some embodiments, floating charge and constant pressure fill the charging modes for being all made of PWM electric current, wherein constant current, which is filled, is adopted
First current value of charging current is greater than floating charge and constant pressure fills the second current value of used charging current.
In some embodiments, control module 14 include timing unit 142, timing unit 142 be used for battery 20 into
Timing obtains the first duration T1 when row constant pressure is filled, and timing obtains the second duration T2 when battery 20 charges；
Control module 14 is used to reach the first given threshold as the first duration T1 or the second duration T2 reaches the second setting threshold
When value, stop charging to battery 20.
It please join Fig. 4, the electronic device 200 of embodiment of the present invention includes the charging unit 10 and battery of embodiment as above
20。
In the electronic device 200 of embodiment of the present invention, the difference to charge to battery 20 is selected according to the voltage of battery 20
Charging modes ensure that battery 20 reaches real full power state, and then ensure that the electricity consumption duration of battery 20, and utilize constant pressure
It fills and charges to battery 20, ensure that the voltage of battery 20 is certain value, so that the battery 20 of electronic device is in charging process
In will not generate fever phenomenon.
Specifically, electronic device 200 can be the electronic device 200 using rechargeable battery, such as portable type cleaner etc..
In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation
What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the invention.In this specification
In, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
While embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principle of the present invention and objective and become
Type, the scope of the present invention are defined by the claims and their equivalents.
Claims (9)
1. a kind of charging method of battery, which comprises the following steps:
Detect the voltage of the battery；
When the voltage of the battery is over-discharge voltage, floating charge is carried out to the battery；
When the voltage of the battery is normal use voltage, constant current is carried out to the battery and is filled；
Judge whether the battery generates pressure drop during the constant current is filled；
If the battery generates pressure drop during the constant current is filled, stop charging to the battery；
If the battery does not generate pressure drop during the constant current is filled and the voltage of the battery reaches voltage threshold, institute is kept
After the constant one section of setting duration of charging voltage for stating battery, judge whether the battery generates pressure drop；
If the voltage of the battery does not generate pressure drop, constant pressure is carried out to the battery and is filled；
If the voltage of the battery generates pressure drop, stop charging to the battery；
It is described to the battery carry out constant current fill the step of include:
Constant current is carried out to the battery and is filled using the charging modes of pulse-width-modulated current or the charging modes of common current；
Described the step of judging whether the battery generates pressure drop during the constant current is filled, comprising:
When being charged using the charging modes of the pulse-width-modulated current to the battery, in the pulse width tune
The voltage of the battery is detected when the low level of the charging modes of electric current processed and compares the voltage and the voltage threshold
Compared with judging whether the battery generates pressure drop；
When charging using the charging modes of the common current to the battery, the electricity is detected using sliding summation
The voltage in pond is simultaneously compared the sum of the voltage detected by the sliding summation, judges whether the battery produces
Raw pressure drop；
The sliding summation is constantly compared the voltage of the battery, and voltage highest point is saved.
2. charging method as described in claim 1, which is characterized in that further comprising the steps of:
Timing when constant pressure is filled is carried out in the battery and obtains the first duration, and timing obtains second when the battery is charged
Duration；
When first duration reaches the first given threshold or second duration reaches the second given threshold, stop to institute
State battery charging.
3. charging method as described in claim 1, which is characterized in that the floating charge and the constant pressure fill and be all made of pulse width
Modulate electric current charging modes, wherein the constant current fill used by charging current the first current value be greater than the floating charge and
Second current value of charging current used by the constant pressure is filled.
4. charging method as claimed in claim 3, which is characterized in that first current value is to allow in circuit by most
High current value, second current value arrive one third for 1/5th of the maximum current value.
5. charging method as described in claim 1, which is characterized in that 30-40 minutes a length of when the setting.
6. a kind of charging unit, for charging to battery characterized by comprising
Detection module, the detection module are used to detect the voltage of the battery；
Control module, when the detection module detects that the voltage of the battery is over-discharge voltage, the control module is used for
Floating charge is carried out to the battery；
When the detection module detects that the voltage of the battery is normal use voltage, the control module is used for described
Battery carries out constant current and fills；
The control module is for judging whether the battery generates pressure drop during the constant current is filled；
If the battery generates pressure drop during the constant current is filled, the control module charges to the battery for stopping；
If the battery does not generate pressure drop and when the voltage of the battery reaches voltage threshold during the constant current is filled, institute
Control module is stated for judging whether the battery generates pressure after keeping the constant one section of setting duration of the charging voltage of the battery
Drop；
If the voltage of the battery does not generate pressure drop, the control module is used to carry out constant pressure to the battery to fill；
If the voltage of the battery generates pressure drop, the control module charges to the battery for stopping；
During the constant current is filled, the control module is used for charging modes or common electricity using pulse-width-modulated current
The charging modes of stream carry out constant current to the battery and fill；
During the constant current is filled, when the control module is used for the charging modes pair using the pulse-width-modulated current
When the battery is charged, the detection module is used in the low level of the charging modes of the pulse-width-modulated current
The voltage of the battery is detected, the control module is for the voltage and the voltage threshold to be compared, described in judgement
Whether battery generates pressure drop；
When the control module is used to charge to the battery using the charging modes of the common current, the detection
Module is used to detect the voltage of the battery using sliding summation, and the control module is for comparing the sum of the voltage
Compared with judging whether the battery generates pressure drop；
The sliding summation is constantly compared the voltage of the battery, and voltage highest point is saved.
7. charging unit as claimed in claim 6, which is characterized in that the floating charge and the constant pressure fill and be all made of pulse width
Modulate electric current charging modes, wherein the constant current fill used by charging current the first current value be greater than the floating charge and
Second current value of charging current used by the constant pressure is filled.
8. charging unit as claimed in claim 6, which is characterized in that the control module includes timing unit, the timing
Unit is used to carry out timing when constant pressure is filled in the battery to obtain the first duration, and timing obtains second in battery charging
Duration；
The control module is used for, when first duration reaches the first given threshold or second duration reaches second and sets
When determining threshold value, stop charging to the battery.
9. a kind of electronic device, which is characterized in that including such as described in any item charging units of claim 6-8.
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| CN107666167A (en) * | 2017-11-21 | 2018-02-06 | 深圳市森树强电子科技有限公司 | A kind of novel three-stage charging management method and device |
| CN109802456B (en) * | 2019-01-15 | 2022-06-14 | 惠州市安宝科技有限公司 | Automatic battery identification method |
| CN110400986B (en) * | 2019-02-26 | 2022-06-21 | 尼讯(上海)科技有限公司 | Method for charging accumulator 11 in a single stage manner |
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