CN106685015A - Charging method, charging unit and electronic device - Google Patents
Charging method, charging unit and electronic device Download PDFInfo
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- CN106685015A CN106685015A CN201710150531.2A CN201710150531A CN106685015A CN 106685015 A CN106685015 A CN 106685015A CN 201710150531 A CN201710150531 A CN 201710150531A CN 106685015 A CN106685015 A CN 106685015A
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- 238000007600 charging Methods 0.000 title claims abstract description 151
- 238000000034 method Methods 0.000 title claims abstract description 38
- 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 17
- 238000009434 installation Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 abstract description 11
- 238000010280 constant potential charging Methods 0.000 abstract 1
- 238000010277 constant-current charging Methods 0.000 abstract 1
- 229910018095 Ni-MH Inorganic materials 0.000 description 6
- 229910018477 Ni—MH Inorganic materials 0.000 description 6
- 206010037660 Pyrexia Diseases 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
- 238000010586 diagram Methods 0.000 description 3
- 235000008434 ginseng Nutrition 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 238000005516 engineering process Methods 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
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000977 initiatory effect Effects 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
Classifications
-
- 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
Abstract
The invention discloses a charging method for batteries, a charging unit and an electronic device. The charging method comprises the following steps: the battery voltage is detected, when the battery voltage is an over-discharge voltage, floating charging is conducted on the battery, when the battery voltage is a normal service voltage, constant-current charging is conducted on the battery, whether the battery voltage drops or not is judged in the constant-current charge process, if the battery voltage drops in the constant-current charge process, the battery charging is stopped, if the battery voltage does not drop and the battery voltage reaches a voltage threshold value in the constant-current charge process, after the voltage remains unchanged for a set duration, whether the battery voltage drops or not is judged, if the battery voltage does not drop, the constant-voltage charging is conducted on the battery, and if the battery voltage drops, the battery charging is topped. According to the charging method of the invention mode of execution, different charging ways are chosen for battery charging according to the voltage and therefore it is guaranteed that the battery achieves the real full-charge conditions and the battery does not heat in the process of battery charge by using constant-voltage charge.
Description
Technical field
The present invention relates to battery boosting technology, more particularly to a kind of charging method of battery, charging device and electronic installation.
Background technology
In the related, generally use the such as constant current of single charging modes and fill and be charged to battery, such mode
Charging can be made relatively slow and due to due to battery is full of judgment mechanism, battery possibly really cannot be full of, and cause making for battery
With the shorter experience so as to affect user of duration.
The content of the invention
Embodiment of the present invention provides a kind of charging method, charging device and electronic installation.
The charging method of embodiment of the present invention is comprised the following steps：
Detect the voltage of the battery；
When the voltage of the battery is that overdischarge is pressed, floating charge is carried out to the battery；
When the voltage of the battery is normally to use voltage, constant current is carried out to the battery and is filled；
Judge whether the battery produces pressure drop during the constant current is filled；
If the battery produces pressure drop during the constant current is filled, stop charging the battery；
If the battery does not produce pressure drop and the voltage of the battery reaches voltage threshold during the constant current is filled, protect
After holding the constant one section of setting duration of voltage of the battery, judge whether the battery produces pressure drop；
If the voltage of the battery does not produce pressure drop, constant pressure is carried out to the battery and is filled；
If the voltage of the battery produces pressure drop, stop charging the battery.
In the charging method of the battery of embodiment of the present invention, the difference charged to battery is selected to fill according to the voltage of battery
Electrically, it is ensured that battery reaches real full power state, and then the electricity consumption duration of battery is ensure that, and is filled to electricity using constant pressure
Pond is charged, it is ensured that the voltage of battery is certain value, and fever phenomenon will not be produced 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 is obtained when the battery is charged
Second duration；
When first duration reaches the first given threshold, or second duration is when reaching the second given threshold, stops
The battery is charged.
In some embodiments, it is described the step of constant current is filled is carried out to the battery to include：
Constant current is carried out to the battery using the charging modes of the charging modes or common current of pulse-width-modulated current
Fill.
In some embodiments, whether judgement battery during the constant current is filled produces the step of pressure drop
Suddenly, including：
When the charging modes using pulse-width-modulated current are charged to the battery, adjust in the pulse width
The voltage of the battery is detected during the low level of the charging modes of electric current processed and the voltage and the voltage threshold are compared
Compared with judging whether the battery produces pressure drop；
When the charging modes using common current are charged to the battery, the electricity is detected using slip summation
The voltage in pond and to the voltage and be compared, judge whether the battery produces pressure drop.
In some embodiments, the floating charge and the constant pressure fill the charging side using pulse-width-modulated current
Formula, wherein, the constant current is filled the first current value of adopted charging current and fills and adopted more than the floating charge and the constant pressure
Charging current the second current value.
In some embodiments, first current value is that the maximum current value that passes through is allowed in circuit, described second
Current value is 1st/to three/5ths of the maximum current value.
In some embodiments, a length of 30-40 minutes during the setting.
For being charged to battery, the charging device includes the charging device of embodiment of the present invention：
Detection module, the detection module are used for the voltage for detecting the battery；
Control module, when the voltage that the detection module detects the battery is that overdischarge is pressed, the control module
For carrying out floating charge to the battery；
When the detection module detects the voltage of the battery normally to use voltage, it is right that the control module is used for
The battery carries out constant current and fills；
The control module is used to judge whether the battery produces pressure drop during the constant current is filled；
If the battery produces pressure drop during the constant current is filled, the control module is used to stop filling the battery
Electricity；
If the battery does not produce pressure drop and when the voltage of the battery reaches voltage threshold during the constant current is filled
When, after the control module is used to keep the constant one section of setting duration of voltage of the battery, judge whether the battery produces
Pressure drop；
If the voltage of the battery does not produce pressure drop, the control module is filled for carrying out constant pressure to the battery；
If the voltage of the battery produces pressure drop, the control module is used to stop charging the battery.
In the charging device of embodiment of the present invention, the difference that control module selects to charge battery according to the voltage of battery
Charging modes, it is ensured that battery reaches real full power state, and then the electricity consumption duration of battery is ensure that, and fill right using constant pressure
Battery is charged, it is ensured that the voltage of battery is certain value, and fever phenomenon will not be produced in battery charging process.
In some embodiments, during the constant current is filled, the control module is used to adopt pulse width modulation
The charging modes of the charging modes or common current of electric 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 for using the pulse width
When the charging modes of degree modulation electric current are charged to the battery, the detection module is in pulse width modulation electricity
Detect the voltage of the battery during low level of the charging modes of stream, the control module is for by the voltage and the voltage
Threshold value is compared, and judges whether the battery produces pressure drop；
It is when the control module is for being charged to the battery using the charging modes of the common current, described
Detection module is used for the voltage that the battery is detected using slip summation, the control module for the voltage and enter
Row compares, and judges whether the battery produces pressure drop.
In some embodiments, the floating charge and the constant pressure fill the charging side using pulse-width-modulated current
Formula, wherein, the constant current is filled the first current value of adopted charging current and fills and adopted more than the floating charge and the constant pressure
Charging current the second current value.
In some embodiments, the control module includes timing unit, and the timing unit is in the battery
Carry out timing when constant pressure is filled and obtain the first duration, and timing obtains the second duration when the battery charges；
The control module is used for, and when first duration reaches the first given threshold, or second duration reaches
During two given thresholds, stop charging the battery.
The electronic installation of embodiment of the present invention includes the charging device described in as above any embodiment.
In the electronic installation of embodiment of the present invention, according to the different charging sides that the voltage of battery selects to charge battery
Formula, it is ensured that battery reaches real full power state, and then the electricity consumption duration of battery is ensure that, and fill to enter battery using constant pressure
Row charges, it is ensured that the voltage of battery is certain value so that it is existing that the battery of electronic installation will not produce heating in charging process
As.
The additional aspect and advantage of embodiment of the present invention will be set forth in part in the description, partly by from following
Become obvious in description, or recognized by the practice of the present invention.
Description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from the description with reference to accompanying drawings below to embodiment
Substantially with it is easy to understand, wherein：
Fig. 1 is the schematic flow sheet of the charging method of embodiment of the present invention.
Fig. 2 is the 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 installation 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 device 10, detection module 12, control mould
Block 14, timing unit 142, battery 20, electronic installation 200.
Specific embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the drawings, wherein ad initio
Same or similar element or the element with same or like function are represented to same or similar label eventually.Below by ginseng
The embodiment for examining Description of Drawings is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise " is, based on orientation shown in the drawings or position relationship, to be for only for ease of
The description present invention and simplified description, rather than indicate or imply that the device or element of indication must have specific orientation, Yi Te
Fixed azimuth configuration and operation, therefore be not considered as limiting the invention.Additionally, term " first ", " second " are only used for
Description purpose, and it is not intended that indicating or implying relative importance or the implicit quantity for indicating indicated technical characteristic.
Thus, define " first ", the feature of " second " can be expressed or implicitly include one or more feature.
In description of the invention, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to be mechanically connected, or electrically connect or mutually can communicate；Can be joined directly together, it is also possible to by between intermediary
Connect connected, can be connection or the interaction relationship of two elements of two element internals.For the ordinary skill of this area
For personnel, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In describing the invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or
D score can include the first and second feature directly contacts, it is also possible to be not directly contact including the first and second features but
By the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " include
Fisrt feature is directly over second feature and oblique upper, or is merely representative of fisrt feature level height higher than second feature.First
Feature second feature " under ", " lower section " and " below " including fisrt feature immediately below second feature and obliquely downward, or only
Only represent that fisrt feature level height is less than second feature.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.In order to
Simplify disclosure of the invention, hereinafter the part and setting of specific examples are described.Certainly, they are only merely illustrative, and
And purpose does not lie in the restriction present invention.Additionally, the present invention can in different examples repeat reference numerals and/or reference letter,
This repetition is for purposes of simplicity and clarity, between itself not indicating discussed various embodiments and/or arranging
Relation.Additionally, the invention provides various specific technique 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.
Fig. 1-Fig. 3 is referred to, a kind of charging method that embodiment of the present invention is provided is comprised the following steps：
S1：The voltage of detection battery 20.
S2：When the voltage of battery 20 is that overdischarge is pressed, floating charge is carried out to battery 20.
S3：When the voltage of battery 20 is normally to use voltage, constant current is carried out to battery 20 and is filled.
S4：Judge whether battery 20 produces pressure drop Δ V during constant current is filled.
If battery 20 produces pressure drop Δ V, S5 during constant current is filled：Stopping is charged to battery 20.
If battery 20 does not produce the voltage of pressure drop Δ V and battery 20 and reaches voltage threshold during constant current is filled, S6：Protect
After holding the constant one section of setting duration T of voltage of battery 20, judge whether battery 20 produces pressure drop Δ V.
If the voltage of battery 20 does not produce pressure drop Δ V, S7：Constant pressure is carried out to battery 20 to fill.
If the voltage of battery 20 produces pressure drop Δ V, S5：Stopping is charged to battery 20.
In the charging method of the battery 20 of embodiment of the present invention, select what battery 20 was charged according to the voltage of battery 20
Different charging modes, it is ensured that battery 20 reaches real full power state, and then the electricity consumption duration of battery 20 is ensure that, and utilize
Constant pressure is filled and battery 20 is charged, it is ensured that the voltage of battery 20 is certain value, will not produce and send out in 20 charging process of battery
Thermal phenomenon.
Specifically, incorporated by reference to Fig. 2 and Fig. 3, minimum voltage during 20 normal use of battery is a, during 20 normal use of battery
Ceiling voltage be b, the charge cutoff voltage of battery 20 is c (not shown).Overdischarge pressure refer to [0, a) interval voltage；
It is normal to refer to [a, b] interval voltage using voltage.C is more than b.
In one embodiment, battery 20 adopts Ni-MH battery, can be used for the electronic installations such as portable type cleaner.One
In individual example, minimum voltage a=1V when Ni-MH battery is normally used, ceiling voltage b=1.25V, charge cutoff voltage c=
1.5V.Be located at when the voltage of Ni-MH battery [0,1V) it is interval when, Ni-MH battery puts state in crossing.When Ni-MH battery in [1V,
1.25V] it is interval when, Ni-MH battery is in normal operating condition.
In embodiments of the present invention, floating charge refers to the charging modes charged to battery 20 using small current.Floating charge energy
Electricity is effectively mended to the battery 20 in state of putting is crossed, and is avoided that the protection circuit of triggering battery 20 and is caused change of charging
Slow situation.
The charging modes that the electric current for referring to charge to battery 20 maintains steady state value are filled in constant current, and constant current is filled and quickly can be improved
The voltage of battery 20, shortens the charging interval of battery 20.
Constant pressure fills the charging modes that the voltage referred between 20 the two poles of the earth of battery maintains steady state value, is avoided that 20, battery
Heat, it is ensured 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, the high current of indication is to allow the maximum current that passes through, small current for high current 1/5th in circuit
To 1/3rd, concrete numerical value can be arranged according to actual needs.In other embodiments, the electric current in table 1 may also be employed which
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 when battery 20 is charged
Two duration T2.When the first duration T1 reaches the first given threshold, or the second duration T2 is when reaching the second given threshold, stops to electricity
Pond 20 is charged.
Thus, be avoided that the charging interval it is long battery 20 is damaged, while it also avoid charging interval long possibility
The danger of initiation, it is ensured that charge safety.
Specifically, the stop condition of different charging modes different (ginseng table 2).
Table 2
Specifically, in an example of the present invention, the first given threshold is 1.5-2.5 hours.Second given threshold with
The factors such as the size of different model, different capabilities and charging current of battery 20 and specifically arrange, certainly, the present 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 pulse width modulation (hereinafter referred to as PWM) electric current charging modes or common current charging modes to battery
20 carry out constant current fills.
Thus, the charging modes of PWM electric currents are easily achieved the precise control to charging circuit.The charging modes of common current
Simple structure, it is easy to operate.
In some embodiments, the step of whether battery 20 produces pressure drop Δ V during constant current is filled judged, including：
When the charging modes using PWM electric currents are charged to battery 20, in the charging side of pulse-width-modulated current
The voltage of battery 20 is detected during the low level of formula and the voltage and voltage threshold of battery 20 are compared, judge battery 20 whether
Produce pressure drop；When the charging modes using common current are charged to battery 20, battery 20 is detected using slip summation
Voltage and to detected by slip summation the voltage of battery 20 and be compared, judge whether battery 20 produces pressure
Drop Δ V.
Thus, as, when the charging modes using PWM electric currents charge to battery 20, the voltage of battery 20 is presented and is gradually risen
With the circulation for declining, so 20 voltage of battery is detected in the low level of pwm control signal, battery can be more accurately obtained
20 voltage is not in the voltage virtual height of battery 20 when adapter is accessed so as to the situation for affecting to judge.
Specifically, pwm signal can pass through control realization high level and low level.
Specifically, when detecting 20 voltage of battery, in the low level of pwm control signal, stopping is charged to battery 20 and examine again
Survey the voltage of battery 20.
Further, above-mentioned stopping can be adopted by voltage to the method for detecting the voltage of battery 20 after the charging of battery 20 again
Sample circuit realiration.
Thus, simple to operate, precise control.
When being charged to battery 20 using the charging modes of common current, detect that using slip summation battery 20 is
No generation pressure drop Δ V, can improve the accuracy of detection, battery 20 is really full of, and extend the continuous of battery 20
ETS estimated time of sailing.
Further, slip summation constantly can be compared to the voltage of battery 20, voltage peak is preserved, and is sentenced
The situation that the fixed voltage for battery 20 whether occur declines.In one example, the concrete operations flow process of slip summation is as follows：By
Timer takes the magnitude of voltage of continuous 10 batteries 20 with 10ms to be spaced and forms a numerical value, and constantly updates in cumulative array
Value, every time update one, then array sued for peace, and will try to achieve and be compared, when latter and than previous and little
When, that is, judge the situation for pressure drop Δ V occur.
Such as, voltage value when taking charging interval 10ms is designated as x1, and voltage value when taking charging interval 20ms is designated as
X2, voltage value when taking charging interval 30ms are designated as x3 ... by that analogy, take voltage value note during charging interval 100ms
For x10；All voltage values of x1 to x10 are added, an array summation are obtained and is designated as y1；When taking charging interval 110ms again
Voltage value x11；All voltage values of x2 to x11 are added, another array summation are obtained and is designated as y2, compare y1 and y2
Size, if y2 is less than y1, there is pressure drop Δ V in judgement, otherwise it is cumulative then to proceed to slide.By that analogy.
Thus, slip summation can not only get the variation tendency of current voltage, jitter value is also reduced for data
The impact of the accuracy of collection.
In some embodiments, floating charge and constant pressure fill the charging modes using PWM electric currents, wherein, constant current is filled and is adopted
First current value of charging current is more than floating charge and constant pressure fills the second current value of adopted charging current.
In one example, the first current value herein is the high current that is previously mentioned in upper table 1, the second current value herein
For the small current that upper table 1 is previously mentioned, the degree of specific size elaborates above, will not be described here.
In some embodiments, the first current value is to allow in circuit the maximum current value that passes through, the second current value to be
/ to three/5ths of maximum current value.
Thus, filling the voltage that effectively can be supplemented in battery 20 using floating charge and constant pressure.Second current value of floating charge can make electricity
The voltage in pond 20 is returned to as early as possible and is normally unlikely to trigger the self-protection element in charging circuit using voltage level, again and again
Disconnecting circuit.The second current value that constant pressure is filled can continue to mend electricity to battery 20, make the voltage in battery 20 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, and can be
Situation, the model of battery 20 according to charging circuit makes rational adjustment, to improve the charging rate of battery 20, while protecting
Card charges safe.Meanwhile, the second current value that the second current value of floating charge and constant pressure are filled can also be equal or unequal.
In some embodiments, duration T is set as 30-40 minutes.
Thus, the time of selection 30-40 minutes can be suitably used for the battery 20 of most of type, and more accurately can select
Different charging modes, it is to avoid voltage may keep constant at short notice when battery 20 charges, so as to cause the charging of mistake
Judge.
Refer to Fig. 4, the charging device 10 in embodiment of the present invention for being charged to battery 20, charging device 10
Including detection module 12 and control module 14.Detection module 12 is used for the voltage for detecting battery 20.
When the voltage that detection module 12 detects battery 20 is that overdischarge is pressed, control module 14 is for carrying out to battery 20
Floating charge.
When detection module 12 detect the voltage of battery 20 for normally using voltage when, control module 14 is for entering to battery 20
Row constant current is filled.
Control module 14 is used to judge whether battery 20 produces pressure drop Δ V during constant current is filled.
If battery 20 produces pressure drop Δ V during constant current is filled, control module 14 is used to stop charging battery 20.
If battery 20 does not produce pressure drop Δ V and when the voltage of battery 20 reaches voltage threshold during constant current is filled, control
After molding block 14 is used to keep the constant one section of setting duration T of voltage of battery 20, judge whether battery 20 produces pressure drop Δ V.
If the voltage of battery 20 does not produce pressure drop Δ V, control module 14 is filled for carrying out constant pressure to battery 20.If battery 20
Voltage produce pressure drop Δ V, control module 14 be used for stop battery 20 is charged.
In the charging device 10 of embodiment of the present invention, control module 14 selects to fill battery 20 according to the voltage of battery 20
The different charging modes of electricity, it is ensured that battery 20 reaches real full power state, and then the electricity consumption duration of battery 20 is ensure that, and
Control module 14 is filled using constant pressure and battery 20 is charged, it is ensured that the voltage of battery 20 is certain value, and battery 20 charged
Fever phenomenon will not be produced in journey.
It is pointed out that the explanation of the embodiment and beneficial effect of the above-mentioned charging method to battery 20,
Suitable for the charging device 10 of present embodiment, to avoid redundancy, here from being no longer developed in details in.
In some embodiments, during constant current is filled, control module 14 be used for using PWM electric currents 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 currents
When being charged to battery 20, detection module 12 is for detection electricity during low level in the charging modes of pulse-width-modulated current
For the voltage and voltage threshold of battery 20 are compared, the voltage in pond 20, control module 14 judge whether battery 20 produces
Pressure drop；
When control module 14 is for being charged to battery 20 using the charging modes of common current, detection module 12 is used
In using slip summation detect battery 20 voltage, control module 14 for voltage and be compared, judge battery 20
Whether pressure drop is produced.
Specifically, slip summation stated above, be will not be described here.
In some embodiments, floating charge and constant pressure fill the charging modes using PWM electric currents, wherein, constant current is filled and is adopted
First current value of charging current is more than floating charge and constant pressure fills the second current value of adopted charging current.
In some embodiments, control module 14 includes timing unit 142, and timing unit 142 is for entering in battery 20
Timing when row constant pressure is filled obtains the first duration T1, and timing obtains the second duration T2 when battery 20 charges；
Control module 14 is used for when the first duration T1 reaches the first given threshold, or the second duration T2 reaches the second setting threshold
During value, stopping is charged to battery 20.
Please join Fig. 4, the electronic installation 200 of embodiment of the present invention includes charging device 10 and the battery that mode is performed as described above
20。
In the electronic installation 200 of embodiment of the present invention, according to the difference that the voltage of battery 20 selects to charge battery 20
Charging modes, it is ensured that battery 20 reaches real full power state, and then the electricity consumption duration of battery 20 is ensure that, and utilize constant pressure
Fill and battery 20 is charged, it is ensured that the voltage of battery 20 is certain value so that the battery 20 of electronic installation is in charging process
In will not produce fever phenomenon.
Specifically, electronic installation 200 can be the electronic installation 200 using rechargeable battery, such as portable type cleaner etc..
In the description of this specification, reference term " embodiment ", " some embodiments ", " schematically enforcement
Mode ", " example ", " specific example ", or the description of " some examples " etc. mean what is described with reference to the embodiment or example
Specific features, structure, material or feature are contained at least one embodiment or example of the present invention.In this specification
In, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.And, the concrete spy of description
Levy, structure, material or feature can be combined in one or more any embodiment or example in an appropriate manner.
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 in the case of principle and objective without departing from the present invention with various changes, modification, replacement and become
Type, the scope of the present invention are limited by claim and its equivalent.
Claims (13)
1. a kind of charging method of battery, it is characterised in that comprise the following steps：
Detect the voltage of the battery；
When the voltage of the battery is that overdischarge is pressed, floating charge is carried out to the battery；
When the voltage of the battery is normally to use voltage, constant current is carried out to the battery and is filled；
Judge whether the battery produces pressure drop during the constant current is filled；
If the battery produces pressure drop during the constant current is filled, stop charging the battery；
If the battery does not produce pressure drop and the voltage of the battery reaches voltage threshold during the constant current is filled, institute is kept
After stating the constant one section of setting duration of voltage of battery, judge whether the battery produces pressure drop；
If the voltage of the battery does not produce pressure drop, constant pressure is carried out to the battery and is filled；
If the voltage of the battery produces pressure drop, stop charging the battery.
2. charging method as claimed in claim 1, it is characterised 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 is when reaching the second given threshold, stops to institute
State battery charging.
3. charging method as claimed in claim 1, it is characterised in that described to carry out wrapping the step of constant current is filled to the battery
Include：
Constant current is carried out to the battery using the charging modes of the charging modes or common current of pulse-width-modulated current to fill.
4. charging method as claimed in claim 3, it is characterised in that judgement battery during the constant current is filled
The step of whether producing pressure drop, including：
When the charging modes using the pulse-width-modulated current are charged to the battery, adjust in the pulse width
The voltage of the battery is detected during the low level of the charging modes of electric current processed and the voltage and the voltage threshold are compared
Compared with judging whether the battery produces pressure drop；
When the charging modes using the common current are charged to the battery, the electricity is detected using slip summation
The voltage in pond and to the voltage that detected by the slip summation and be compared, judge whether the battery produces
Raw pressure drop.
5. charging method as claimed in claim 1, it is characterised in that the floating charge and the constant pressure are filled
The charging modes of modulation electric current, wherein, the constant current fill the first current value of adopted charging current more than the floating charge and
The constant pressure fills the second current value of adopted charging current.
6. charging method as claimed in claim 5, it is characterised in that first current value is to allow to pass through most in circuit
High current value, second current value are 1st/1 to three/5ths of the maximum current value.
7. charging method as claimed in claim 1, it is characterised in that a length of 30-40 minutes during the setting.
8. a kind of charging device, for being charged to battery, it is characterised in that include：
Detection module, the detection module are used for the voltage for detecting the battery；
Control module, when the voltage that the detection module detects the battery is that overdischarge is pressed, the control module is used for
Floating charge is carried out to the battery；
When the detection module detects the voltage of the battery normally to use voltage, the control module is for described
Battery carries out constant current and fills；
The control module is used to judge whether the battery produces pressure drop during the constant current is filled；
If the battery produces pressure drop during the constant current is filled, the control module is used to stop charging the battery；
If during the constant current is filled, the battery does not produce pressure drop and when the voltage of the battery reaches voltage threshold, institute
Control module is stated for keeping, after the constant one section of setting duration of the voltage of the battery, judging whether the battery produces pressure drop；
If the voltage of the battery does not produce pressure drop, the control module is filled for carrying out constant pressure to the battery；
If the voltage of the battery produces pressure drop, the control module is used to stop charging the battery.
9. charging device as claimed in claim 8, it is characterised in that during the constant current is filled, the control module are used
Constant current is carried out to the battery in the charging modes of charging modes or common current using pulse-width-modulated current to fill.
10. charging device as claimed in claim 9, it is characterised in that during the constant current is filled, when the control module
During for being charged to the battery using the charging modes of the pulse-width-modulated current, the detection module for
The voltage of the battery is detected during the low level of the charging modes of the pulse-width-modulated current, the control module is used for will
The voltage and the voltage threshold are compared, and judge whether the battery produces pressure drop；
When the control module is for being charged to the battery using the charging modes of the common current, the detection
Module is used for the voltage that the battery is detected using slip summation, the control module for the voltage and compare
Compared with judging whether the battery produces pressure drop.
11. charging devices as claimed in claim 8, it is characterised in that the floating charge and the constant pressure are filled
The charging modes of degree modulation electric current, wherein, the constant current is filled the first current value of adopted charging current and is more than the floating charge
The second current value of adopted charging current is filled with the constant pressure.
12. charging devices as claimed in claim 8, it is characterised in that the control module includes timing unit, the timing
Unit obtains the first duration for carrying out timing when constant pressure is filled in the battery, and timing obtains second when the battery charges
Duration；
The control module is used for, and when first duration reaches the first given threshold, or second duration reaches second and sets
When determining threshold value, stop charging the battery.
13. a kind of electronic installations, it is characterised in that include the charging device as described in any one of claim 8-12.
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| CN201710150531.2A CN106685015B (en) | 2017-03-14 | 2017-03-14 | Charging method, charging unit and electronic device |
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| CN201710150531.2A CN106685015B (en) | 2017-03-14 | 2017-03-14 | Charging method, charging unit and electronic device |
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| CN106685015B (en) | 2019-04-26 |
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