CN107732343A - Charging method and charger - Google Patents
Charging method and charger Download PDFInfo
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- CN107732343A CN107732343A CN201710815254.2A CN201710815254A CN107732343A CN 107732343 A CN107732343 A CN 107732343A CN 201710815254 A CN201710815254 A CN 201710815254A CN 107732343 A CN107732343 A CN 107732343A
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- 238000012360 testing method Methods 0.000 claims description 26
- 230000005611 electricity Effects 0.000 claims description 20
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- 238000006243 chemical reaction Methods 0.000 description 5
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/446—Initial charging measures
-
- 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
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0034—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using reverse polarity correcting or protecting circuits
-
- H02J7/0077—
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
-
- 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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the present invention provides charging method and charger, wherein, methods described detects the initial cell voltage of the rechargeable battery in the case of being included in rechargeable battery access；Target charging scheme and target overcharged voltage are determined according to the initial cell voltage；Charged according to the target charging scheme to the rechargeable battery, and detect the cell voltage of the rechargeable battery；In the case where the cell voltage of the rechargeable battery is equal to the target overcharged voltage, temporarily ceases and charged to the rechargeable battery；Determine the Voltage Drop amplitude of the rechargeable battery；Stop or continue according to the Voltage Drop amplitude of the rechargeable battery to charge to the rechargeable battery.Using technical scheme, the situation that rechargeable battery is overcharged or is not fully filled can be avoided the occurrence of when being charged to rechargeable battery, improves the life-span of rechargeable battery.
Description
Technical field
The present embodiments relate to electronic technology field, more particularly to charging method and charger.
Background technology
With the development of electronic technology, the application of the equipment such as mobile phone, intelligent watch, electric automobile is more and more extensive, these
Equipment can be generally recycled, and the normal operation of equipment is maintained by cycle charging, electric discharge, in these equipment out of power or
When electricity is relatively low, these equipment charges can be given with charger, there is provided electric energy.
Alternating current is converted into DC current by charger by way of Control Technique of Microcomputer and filter rectification, then defeated
Go out and charged to the rechargeable battery of equipment, in current charger, mainly using fixed voltage or fixed current to charging
Battery is charged, and charger needs to match with rechargeable battery, can be to occurring to low-voltage battery charging with high-voltage charger
Phenomenon is overcharged, the phenomenon that can be not fully filled to high-voltage battery charging with low-voltage charger, overcharging and be not fully filled can be to charging
Battery has damaged.And in the case where not knowing the specification of rechargeable battery, if one charger of random selection is to rechargeable battery
Charging is then likely to occur the phenomenon that rechargeable battery is overcharged or is not fully filled, and damages the life-span of rechargeable battery.
The content of the invention
The embodiment of the present invention provides charging method and charger, can avoid the occurrence of and not know the specification of rechargeable battery
In the case of charged to rechargeable battery caused by the rechargeable battery phenomenon that overcharges or be not fully filled.
First aspect of the embodiment of the present invention provides a kind of charging method, can apply to charger, including：
The initial cell voltage of the rechargeable battery is detected in the case where rechargeable battery accesses；
Target charging scheme and target overcharged voltage are determined according to the initial cell voltage；
Charged according to the target charging scheme to the rechargeable battery, and detect the cell voltage of the rechargeable battery；
In the case where the cell voltage of the rechargeable battery is equal to the target overcharged voltage, temporarily ceases and filled to described
Battery charges；
Determine the Voltage Drop amplitude of the rechargeable battery；
Stop or continue according to the Voltage Drop amplitude of the rechargeable battery to charge to the rechargeable battery.
It is described that target charging scheme and target mistake are determined according to the initial cell voltage in a kind of possible design
Charging voltage includes：Determine the voltage range belonging to the initial cell voltage；Determine corresponding to the voltage range that first is specified
Voltage and the second rated voltage, first rated voltage are less than second rated voltage；By first rated voltage pair
The overcharged voltage answered is defined as target overcharged voltage；Charging scheme corresponding to first rated voltage is defined as target charging
Scheme.
It is described to stop or continue to described according to the Voltage Drop amplitude of the rechargeable battery in a kind of possible design
Rechargeable battery charging includes：Determine that predeterminated voltage corresponding to the voltage range falls threshold value；If the Voltage Drop amplitude is small
Fall threshold value in or equal to the predeterminated voltage, then stop charging to the rechargeable battery；If the Voltage Drop amplitude is more than
The predeterminated voltage falls threshold value, then continues to charge to the rechargeable battery.
It is described to continue to include to rechargeable battery charging in a kind of possible design：By second rated voltage
Corresponding charging scheme is defined as target charging scheme, and overcharged voltage corresponding to second rated voltage is defined as into target mistake
Charging voltage；Continue to charge until cell voltage of the rechargeable battery etc. to the rechargeable battery according to the target charging scheme
In the target overcharged voltage.
In a kind of possible design, also include before the initial cell voltage of the detection rechargeable battery：It is determined that
The voltage of predeterminated voltage test point；If the voltage of the predeterminated voltage test point is not equal to predetermined voltage threshold, reversal connection is exported
Warning；If the voltage of the predeterminated voltage test point is equal to predetermined voltage threshold, the detection rechargeable battery is performed
The step of initial cell voltage.
Second aspect of the embodiment of the present invention provides a kind of charger, including：
Battery voltage sensing module, for being accessed in rechargeable battery in the case of detect the initial cells of the rechargeable battery
Voltage；
First determining module, for determining target charging scheme and target overcharge according to the initial cell voltage
Pressure；
Charging module, for being charged according to the target charging scheme to the rechargeable battery, the battery voltage detection
Module is additionally operable to detect the cell voltage of the rechargeable battery；
The charging module is additionally operable to be equal to the situation for crossing target charging voltage in the cell voltage of the rechargeable battery
Under, temporarily cease and charged to the rechargeable battery；
Second determining module, for determining the Voltage Drop amplitude of the rechargeable battery；
The charging module is additionally operable to stop or continue to the charging according to the Voltage Drop amplitude of the rechargeable battery
Battery charges.
In the embodiment of the present invention, the initial cell voltage by obtaining the rechargeable battery being currently accessed, which can primarily determine that, fills
Several possible specifications of battery, so can determine be adapted to this several possible specification rechargeable battery charging scheme and
Overcharged voltage, then charged until the voltage arrival overcharged voltage of rechargeable battery to rechargeable battery according to charging scheme, temporarily stopped
Only charge to rechargeable battery to detect the Voltage Drop amplitude of rechargeable battery, stopped according to the Voltage Drop amplitude of the rechargeable battery
Only or continue give the rechargeable battery charging, due to different size rechargeable battery cell voltage when reaching the overcharged voltage
Fall amplitude difference, then the specification of rechargeable battery can be accurately determined according to Voltage Drop amplitude, further can then determine this
Whether rechargeable battery is full of, if needs continue to charge, and avoid giving charging electricity in the case where not knowing the specification of rechargeable battery
Charge and cause the phenomenon that rechargeable battery is overcharged or is not fully filled occur in pond.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, it will use below required in embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is a kind of schematic flow sheet of charging method provided in an embodiment of the present invention；
Fig. 2 is the schematic diagram of the partial circuit of charger internal provided in an embodiment of the present invention；
Fig. 3 is the voltage change schematic diagram of rechargeable battery in varied situations；
Fig. 4 is the schematic flow sheet of another charging method of the present invention；
Fig. 5 is the schematic flow sheet of another charging method of the invention；
Fig. 6 is a kind of composition structural representation of charger provided in an embodiment of the present invention；
Fig. 7 is a kind of composition structural representation of the first determining module of charger provided in an embodiment of the present invention；
Fig. 8 is a kind of composition structural representation of the charging module of charger provided in an embodiment of the present invention
Fig. 9 is a kind of structured flowchart of the hardware circuit of charger provided in an embodiment of the present invention.
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 carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example is applied, belongs to the scope of protection of the invention.
Referring to Fig. 1, Fig. 1 is a kind of schematic flow sheet of charging method provided in an embodiment of the present invention, and this method can answer
For charger, as illustrated, methods described includes：
S101, the initial cell voltage of the rechargeable battery is detected in the case where rechargeable battery accesses.
Wherein, in the case where rechargeable battery accesses, it is determined that two outputs of the both positive and negative polarity and charger of rechargeable battery
Hold the initial cell voltage that rechargeable battery is detected in the case of the connection correctly of pole, the both positive and negative polarity of rechargeable battery and the two of charger
The cathode output end of positive pole and charger that the connection of output end pole correctly refers to rechargeable battery connects, the negative pole of rechargeable battery and charging
The cathode output end connection of device.
In the specific implementation, the initial cell voltage of the rechargeable battery, charger can be detected by voltage detecting circuit
Internal partial circuit can be as shown in Fig. 2 before rechargeable battery access, to have not yet been formed and fill between charger and rechargeable battery
Electrical circuit, relay are off, the voltage one at two output end pole of the charger both ends that voltage detecting circuit detects
It is straight to be equal to zero；When rechargeable battery accesses, charger forms charge circuit with rechargeable battery, and relay does not turn on also, voltage inspection
The voltage at two output end pole of the charger both ends that slowdown monitoring circuit detects is equal to the voltage at rechargeable battery both ends, namely rechargeable battery
Initial cell voltage.
In a kind of possible implementation, the initial of rechargeable battery both ends can be directly detected when rechargeable battery accesses
Cell voltage, the voltage of the default test point in voltage detecting circuit can also be detected when rechargeable battery accesses, further according to electricity
The position relationship of the specific annexation of pressure detection circuit and the default test point and cathode output end determines default test point
Voltage and cathode output end voltage between corresponding relation, convert to obtain the initial of rechargeable battery further according to the corresponding relation
Cell voltage.
S102, target charging scheme and target overcharged voltage are determined according to the initial cell voltage.
Wherein, overcharged voltage, which refers to, charges to rechargeable battery on the premise of rechargeable battery is not damaged and enables rechargeable battery institute
The maximum voltage reached.
It can be seen from the charge-discharge characteristic of rechargeable battery, the voltage of rechargeable battery is not changeless, and it is in an electricity
The interior fluctuation of nip, scope range of the fluctuation of voltage corresponding to the rechargeable battery of different size are different.The fluctuation range of rechargeable battery is big
In or equal to first voltage and it is less than or equal to second voltage, first voltage is electricity of the rechargeable battery when being discharged voltage stabilization
Pressure, second voltage is voltage of the rechargeable battery in fully charged and voltage stabilization, i.e., first voltage and second voltage are to stand
Voltage after a period of time.
As shown in figure 3, Fig. 3 is the voltage change schematic diagram of rechargeable battery in varied situations, wherein, wherein, B points are corresponding
Cell voltage be overcharged voltage, cell voltage corresponding to A points is first voltage, and cell voltage corresponding to C points is
Two voltages.
In a kind of possible scene, scope range of the fluctuation of voltage does not weigh between each other corresponding to the rechargeable battery of different size
Close, voltage range, and the specified electricity of preset voltage section and rechargeable battery can be divided according to the scope range of the fluctuation of voltage of rechargeable battery
The corresponding relation of pressure and overcharged voltage, under such a scene, for one by one between voltage range and the rated voltage of rechargeable battery
Corresponding relation, then the voltage range belonging to initial cell voltage can be determined, determines rated voltage corresponding to the voltage range,
Overcharged voltage corresponding to the rated voltage is defined as target overcharged voltage, charging scheme corresponding to the rated voltage is defined as
Target charging scheme.
In alternatively possible scene, there is weight in scope range of the fluctuation of voltage corresponding to the rechargeable battery of adjacent two specifications
Close, voltage range can be divided according to the scope range of the fluctuation of voltage of rechargeable battery, can preset voltage section and rechargeable battery specified electricity
The corresponding relation of pressure, the then rated voltage further according to rechargeable battery and the corresponding relation preset voltage section of overcharged voltage and mistake
The corresponding relation of charging voltage.Under such a scene, the corresponding two kinds of rated voltages of voltage range, for avoid will be specified less
Rechargeable battery fill it is bad, can by the overcharged voltage of the less rechargeable battery of rated voltage in the rechargeable battery of two kinds of rated voltages with electricity
It is corresponding between nip, now determine that target charging scheme and target overcharged voltage include according to the initial cell voltage：It is determined that
Voltage range belonging to initial cell voltage, determines the rated voltage of voltage range first and the second rated voltage, described first
Rated voltage is less than second rated voltage；Overcharged voltage corresponding to first rated voltage is defined as target overcharge
Pressure, is defined as target charging scheme by charging scheme corresponding to first rated voltage.
Illustrate below and the scheme of above two scene is introduced.
For example, rechargeable battery may be three kinds of specifications, rated voltage is respectively 2V, 4V and 6V, wherein, rated voltage is
The scope range of the fluctuation of voltage of 2V rechargeable battery is [1.5V, 2.2V], and rated voltage is the scope range of the fluctuation of voltage of 4V rechargeable battery
For [3.2V, 4.8V], the scope range of the fluctuation of voltage of the rechargeable battery that rated voltage is 6V is [5V, 7.2V], i.e., the electricity of three kinds specifications
The scope range of the fluctuation of voltage in pond is misaligned between each other, then directly can make the scope range of the fluctuation of voltage of the rechargeable battery of three kinds of specifications
For voltage range, preset voltage section can be as shown in table 1 with the corresponding relation of rated voltage and overcharged voltage：
| Voltage range | Rated voltage | Overcharged voltage |
| [1.5V, 2.2V] | 2V | The overcharged voltage of 2V batteries |
| [3.2V, 4.8V] | 4V | The overcharged voltage of 4V batteries |
| [5V, 7.2V] | 6V | The overcharged voltage of 6V batteries |
Table 1
If the initial cell voltage for detecting the rechargeable battery of access is 3.5V, the voltage range belonging to 3.5V for [3.2V,
4.8V], the corresponding relation according to table 1 can determine that the rated voltage of the rechargeable battery of access is 2V, and overcharged voltage is 2V electricity
The overcharged voltage in pond, target charging scheme are charging scheme corresponding to 2V batteries.
For example, rechargeable battery may be three kinds of specifications, rated voltage is respectively 6V, 8V and 12V, wherein, rated voltage
Scope range of the fluctuation of voltage for 6V rechargeable battery is [5V, 7.2V], and rated voltage is the scope range of the fluctuation of voltage of 8V rechargeable battery
For [6.2V, 9.7V], the scope range of the fluctuation of voltage of the rechargeable battery that rated voltage is 12V is [7.9V, 14.6V], i.e., adjacent two
Scope range of the fluctuation of voltage corresponding to the rechargeable battery of individual specification, which exists, to be overlapped, then according to the voltage pulsation of the rechargeable battery of three kinds of specifications
Scope division voltage range for [5V, 7.2V], (7.2V, 9.7V], (and 9.7V, 14.6V], preset voltage section and rated voltage
And the corresponding relation of overcharged voltage can be as shown in table 2：
| Voltage range | Rated voltage | Overcharged voltage |
| [5V, 7.2V] | 6V/8V | The overcharged voltage of 6V batteries |
| (7.2V, 9.7V] | 8V/12V | The overcharged voltage of 8V batteries |
| (9.7V, 14.6V] | 12V | The overcharged voltage of 12V batteries |
Table 2
If the initial cell voltage for detecting the rechargeable battery of access is 7.9V, the voltage range belonging to 7.9V for (7.2V,
9.7V], the corresponding relation according to table 2 can determine that the first rated voltage of access is 8V, and the second rated voltage is 12V, mistake
Charging voltage is the overcharged voltage of 8V batteries, and target charging scheme is the charging scheme of 8V batteries.
In alternate embodiments, the charging scheme of the rechargeable battery of also predeterminable each specification, wherein, charging scheme refers to
The size of the size of the charging voltage exported under the different charging stages to rechargeable battery and/or the charging current of output, its
In, the charging stage can also be divided according to the cell voltage of rechargeable battery according to the charging duration division charging stage.Example
Such as, 1~10 minute will be charged as the first charging stage, using 10~60 minutes as second charging stage, etc.；And for example, give
6V batteries charge, using the cell voltage of rechargeable battery in the period corresponding to 4V~5V as the first charging stage, by charging electricity
The cell voltage in pond is in 5V~6V as second charging stage, etc..Wherein, can be according to spies such as the material of rechargeable battery, attributes
Property and design the charging scheme of the rechargeable battery of each specification.
S103, charged according to the target charging scheme to the rechargeable battery, and detect the battery of the rechargeable battery
Voltage.
Wherein, can be charged according to the content of the charging scheme described by step S102 to rechargeable battery, for example, it may be determined that filling
Charging stage residing for battery, then determined to need what is exported to rechargeable battery under the charging stage according to target charging scheme
Charging voltage and/or charging current, then export corresponding charging voltage and/or charging current and charged to rechargeable battery.
In the specific implementation, the cell voltage of rechargeable battery can be detected by voltage detecting circuit, wherein, detection charging electricity
The mode of the cell voltage in pond refers to step S101 description, and here is omitted.
S104, the rechargeable battery cell voltage be equal to the target overcharged voltage in the case of, temporarily cease to
The rechargeable battery charging.
Wherein it is possible to by the cell voltage detected compared with the overcharged voltage that step S101 is determined, it is determined that should
Cell voltage temporarily ceases when being equal to target overcharged voltage to charge to rechargeable battery.
In specific implementation, it can stop charging to rechargeable battery by the relay disconnected in charge circuit.
S105, determine the Voltage Drop amplitude of the rechargeable battery.
Wherein, the cell voltage of the rechargeable battery can be detected after preset duration, by the cell voltage and target overcharge
The difference of pressure is defined as Voltage Drop amplitude.
Wherein, preset duration is to meet the duration that rechargeable battery falls rule.
S106, stop or continue according to the Voltage Drop amplitude of the rechargeable battery to charge to the rechargeable battery.
In a kind of possible scene, scope range of the fluctuation of voltage corresponding to the rechargeable battery in different size does not weigh between each other
In the case of conjunction, the rated voltage that the voltage range according to belonging to initial cell voltage determines only has one kind, that is, the charging accessed
Battery is only possible to as a kind of rechargeable battery of specification, and correspondingly, Voltage Drop amplitude only has a kind of possibility, i.e. Voltage Drop width
It is worth for Voltage Drop width that rated voltage is the rechargeable battery of rated voltage corresponding to voltage range belonging to initial cell voltage
Value, because the charging voltage of the rechargeable battery has arrived at the overcharged voltage of the rechargeable battery, stop charging to the rechargeable battery.
In alternatively possible scene, scope range of the fluctuation of voltage corresponding to the rechargeable battery in two adjacent specifications is present
In the case of coincidence, the voltage range according to belonging to initial cell voltage determines that rated voltage has two kinds, that is, the charging electricity accessed
Pond may be the one of which in the rechargeable battery of two kinds of adjacent specifications, and correspondingly, Voltage Drop amplitude has two kinds of possibility
Property, target overcharged voltage is charging voltage corresponding to the less rechargeable battery of rated voltage in the rechargeable battery of two kinds of specifications, then
If determine the rechargeable battery for the less charging electricity of rated voltage in the rechargeable battery of two kinds of specifications according to the Voltage Drop amplitude
Chi Shi, then stop charging to rechargeable battery；If charging of the rechargeable battery for two kinds of specifications is determined according to the Voltage Drop amplitude
In battery during the larger rechargeable battery of rated voltage, then continue to give rechargeable battery charging.
It is determined that the rechargeable battery be two kinds of specifications rechargeable battery in after the larger rechargeable battery of rated voltage, due to
The target charging scheme and target overcharged voltage used in before the step of is corresponding with the less rechargeable battery of rated voltage, continues
Then can not be fully charged to rechargeable battery, it is necessary to be filled using the target of the larger rechargeable battery of rated voltage using target charging scheme
Electric scheme, then continue to include to rechargeable battery charging：Charging scheme corresponding to second rated voltage is defined as mesh
Charging scheme is marked, overcharged voltage corresponding to second rated voltage is defined as target overcharged voltage；Filled according to the target
Electric scheme continues to charge until the cell voltage of the rechargeable battery is equal to the target overcharged voltage to the rechargeable battery.When
When the cell voltage of rechargeable battery reaches overcharged voltage corresponding to the second rated voltage, rechargeable battery is fully charged.
In the embodiment of the present invention, the one of rechargeable battery can be primarily determined that by the initial cell voltage for obtaining rechargeable battery
Kind or two kinds of possible specifications, and then the charging scheme and mistake for being adapted to the rechargeable battery of this one or two kinds of specification can be determined
Charging voltage, then according to charging scheme to rechargeable battery charge until rechargeable battery voltage reach target overcharged voltage, temporarily
Stop charging to rechargeable battery, to detect the Voltage Drop amplitude of rechargeable battery, may further determine that according to Voltage Drop amplitude
It the specification of rechargeable battery, then can determine whether the rechargeable battery is full of according to the specification of the rechargeable battery of determination, and then determine
Whether charged to rechargeable battery, avoid charging to rechargeable battery in the case where not knowing the specification of rechargeable battery and causing to occur
The phenomenon that rechargeable battery is overcharged or is not fully filled.
Referring to Fig. 4, Fig. 4 is the schematic flow sheet of another charging method of the present invention, and this method is applied to adjacent two
There is the scene overlapped in scope range of the fluctuation of voltage corresponding to the rechargeable battery of specification, as illustrated, methods described includes：
S201, the initial cell voltage of the rechargeable battery is detected in the case where rechargeable battery accesses.
S202, target charging scheme and target overcharged voltage are determined according to the initial cell voltage.
S203, charged according to the target charging scheme to the rechargeable battery, and detect the battery of the rechargeable battery
Voltage.
S204, the rechargeable battery cell voltage be equal to the target overcharged voltage in the case of, temporarily cease to
The rechargeable battery charging.
S205, determine the Voltage Drop amplitude of the rechargeable battery.
Wherein, step S201~S205 specific implementation refers to step S101 in embodiment of the method corresponding to Fig. 1
~S105 description, here is omitted.
By step S201~S205, the voltage range according to belonging to initial cell voltage determines that rated voltage has two kinds,
Correspondingly, there are two kinds of possibilities in Voltage Drop amplitude.
S206, determine the voltage range belonging to the initial cell voltage.
Wherein, can the preset voltage range, the description of the voltage range can be found in step in embodiment of the method corresponding to Fig. 1
S102 description, here is omitted.
S207, determine that predeterminated voltage corresponding to the voltage range falls threshold value.
It is different when the rechargeable battery of different size is charged into identical cell voltage it can be seen from the characteristic of rechargeable battery
The Voltage Drop amplitude of the rechargeable battery of specification is different, wherein, in the rechargeable battery of two kinds of specifications, rated voltage is larger to fill
The amplitude of falling of battery falls amplitude more than rated voltage less charging voltage, then can be according to by the battery of two kinds of specifications
The Voltage Drop amplitude that voltage is charged to the rechargeable battery of two kinds of specifications in the case of target overcharged voltage sets predeterminated voltage to fall
Threshold value, wherein, target overcharged voltage is to be overcharged in the rechargeable battery of two kinds of specifications corresponding to the less rechargeable battery of rated voltage
Voltage, then preset predeterminated voltage fall the corresponding relation of threshold value, overcharged voltage and voltage range.
For example, rechargeable battery may be three kinds of specifications, rated voltage is respectively 6V, 8V and 12V, wherein, rated voltage
It is as shown in table 3 with the corresponding relation of overcharged voltage：
| Rated voltage | Overcharged voltage |
| 6V | 7.8V |
| 8V | 10.266V |
| 12V | 15.4V |
Table 3
When 6V and 8V rechargeable battery are charged into 7.8V, the amplitude of falling of 6V batteries is less than or equal to 0.6V, 8V batteries
Amplitude of falling be more than 0.6V；When by 8V and 12V rechargeable battery bulk charge 10.266V, the amplitude of falling of 8V batteries is less than
The amplitude of falling of 0.8V, 12V battery is more than 0.8V, now can fall threshold using 0.6V as the predeterminated voltage for distinguishing 6V and 8V batteries
Value, fall threshold value using 0.8V as 8V batteries and the default of 12V batteries, then preset predeterminated voltage falls threshold value, overcharged voltage
And the corresponding relation of voltage range can be as shown in table 4：
| Voltage range | Predeterminated voltage falls threshold value | Overcharged voltage |
| [5V, 7.2V] | 0.6V | The overcharged voltage of 6V batteries |
| (7.2V, 9.7V] | 0.8V | The overcharged voltage of 8V batteries |
| (9.7V, 14.6V] | The overcharged voltage of 12V batteries |
Table 4
If voltage range for (7.2V, 9.7V], it is determined that it is 0.8V that predeterminated voltage, which falls threshold value,.
S208, if the Voltage Drop amplitude falls threshold value less than or equal to the predeterminated voltage, stop to the charging
Battery charges.
For example, Voltage Drop amplitude is 0.5V, Voltage Drop threshold value is 0.8V, and Voltage Drop amplitude is fallen less than predeterminated voltage
Fall threshold value, then stop charging to rechargeable battery.
In alternate embodiments, stop to rechargeable battery charge after can also by auditory tone cues, text prompt,
The modes such as picture cues, indicator lamp prompting are exported full of instruction, for example, auditory tone cues " having been filled with ", and for example, shows on a display screen
It is 100%, etc. to show electric quantity of rechargeable battery.
S209, if Voltage Drop amplitude falls threshold value more than the predeterminated voltage, continue to charge to the rechargeable battery.
For example, Voltage Drop amplitude is 0.9V, Voltage Drop threshold value is 0.8V, and Voltage Drop amplitude is fallen more than predeterminated voltage
Fall threshold value, then continue to charge to rechargeable battery.
Wherein, continue to refer to embodiment of the method step corresponding to Fig. 1 to the specific implementation of rechargeable battery charging
S106 description, here is omitted.
In the embodiment of the present invention, the two of rechargeable battery can be primarily determined that by the initial cell voltage for obtaining rechargeable battery
The possible specification of kind, and then target charging scheme and the target overcharge for being adapted to the rechargeable battery of two kinds of specification can be determined
Pressure, then charged until the voltage of rechargeable battery reaches overcharged voltage, temporarily ceased to filling to rechargeable battery according to charging scheme
Battery charges to detect the Voltage Drop amplitude of rechargeable battery, due to the rechargeable battery of different size is charged into identical battery
During voltage, the Voltage Drop amplitude of the rechargeable battery of different size is different, then can be fallen according to Voltage Drop amplitude with predeterminated voltage
The relation for falling threshold value determines whether to continue to charge, and falls the situation of threshold value less than or equal to predeterminated voltage in Voltage Drop amplitude
Under, stop charging to rechargeable battery, avoid overcharging, in the case where Voltage Drop amplitude falls threshold value more than predeterminated voltage, after
Continue and charged to rechargeable battery, avoid being not fully filled.
Referring to Fig. 5, Fig. 5 is the schematic flow sheet of another charging method of the invention, as illustrated, methods described includes：
S301, rechargeable battery access in the case of judge the rechargeable battery both positive and negative polarity whether reversal connection.
Wherein, in the case of the both positive and negative polarity reversal connection of rechargeable battery, step S302 is performed；Rechargeable battery both positive and negative polarity not
In the case of reversal connection, step S303 is performed.
In a kind of possible implementation, rechargeable battery can be judged by detecting the circuit of predeterminated voltage test point
Both positive and negative polarity whether reversal connection, be specifically as follows：Determine the voltage of predeterminated voltage test point；If the voltage of the predeterminated voltage test point
Not equal to predetermined voltage threshold, then step S302 is performed；If the voltage of the predeterminated voltage test point is equal to predetermined voltage threshold,
Then perform step S303.Wherein, predeterminated voltage test point is the test point that voltage is influenceed by rechargeable battery access, i.e., default
The voltage of voltage detecting point just connect in the both positive and negative polarity of rechargeable battery or the both positive and negative polarity reversal connection in rechargeable battery in the case of it is different.
In alternatively possible implementation, whether the both positive and negative polarity of rechargeable battery can be judged by detecting predetermined current
Reversal connection, it is specifically as follows：Determine the electric current of predetermined current test point；If the electric current of the predetermined current test point is more than default electricity
Threshold value is flowed, then performs step S302；If the electric current of the predetermined current test point is less than or equal to predetermined current threshold, perform
Step S303.Wherein, predetermined current test point is the test point that electric current is influenceed by rechargeable battery access, i.e. predetermined current is examined
The electric current of measuring point is different in the both positive and negative polarity reversal connection of rechargeable battery or in the case of just connecing in the both positive and negative polarity of rechargeable battery.
S302, output reversal connection warning.
, can be defeated by modes such as auditory tone cues, text prompt, picture cues, indicator lamp promptings in specific implementation
Go out reversal connection warning.For example, both positive and negative polarity reversal connection is prompted in a manner of yowl；And for example, both positive and negative polarity is prompted in a manner of indicator lamp flashes
Reversal connection, etc..
S303, detect the initial cell voltage of the rechargeable battery；
S304, target charging scheme and target overcharged voltage are determined according to the initial cell voltage；
S305, charged according to the target charging scheme to the rechargeable battery, and detect the battery of the rechargeable battery
Voltage；
S306, the rechargeable battery cell voltage be equal to the target overcharged voltage in the case of, temporarily cease to
The rechargeable battery charging；
S307, determine the Voltage Drop amplitude of the rechargeable battery；
S308, stop or continue according to the Voltage Drop amplitude of the rechargeable battery to charge to the rechargeable battery.
Wherein, step S303~S308 specific implementation refer to S101 in embodiment of the method corresponding to Fig. 1~
S106 description, here is omitted.
In the embodiment of the present invention, determine whether both positive and negative polarity reversed when rechargeable battery accesses, both positive and negative polarity connect to situation
One or two kinds of possible specifications of rechargeable battery, Jin Erke are primarily determined that by obtaining the initial cell voltage of rechargeable battery down
To determine to be adapted to the charging scheme and overcharged voltage of the rechargeable battery of this one or two kinds of specification, then given according to charging scheme
Rechargeable battery charges until the voltage arrival overcharged voltage of rechargeable battery, temporarily ceases and is charged to rechargeable battery to detect charging electricity
The Voltage Drop amplitude in pond, the specification of rechargeable battery is may further determine that according to Voltage Drop amplitude, according to the charging of determination
The specification of battery then can determine whether the rechargeable battery is full of, and then determine whether to charge to rechargeable battery, avoid not knowing
Charged in the case of the specification of road rechargeable battery to rechargeable battery and cause to occur the phenomenon that rechargeable battery overcharges or be not fully filled.
The above-mentioned method for illustrating the embodiment of the present invention, for the ease of preferably implementing the above-mentioned of the embodiment of the present invention
Scheme, the embodiment of the present invention additionally provide corresponding device.
Referring to Fig. 6, Fig. 6 is a kind of composition structural representation of charger provided in an embodiment of the present invention, as illustrated, institute
Stating charger 40 includes：
Battery voltage sensing module 410, for being accessed in rechargeable battery in the case of detect the initial of the rechargeable battery
Cell voltage；
First determining module 420, for determining that target charging scheme and target overcharge according to the initial cell voltage
Voltage；
Charging module 430, for being charged according to the target charging scheme to the rechargeable battery, the cell voltage inspection
Survey the cell voltage that module is additionally operable to detect the rechargeable battery；
The charging module 430 is additionally operable to the feelings for being equal to the target overcharged voltage in the cell voltage of the rechargeable battery
Under condition, temporarily cease and charged to the rechargeable battery；
Second determining module 440, for determining the Voltage Drop amplitude of the rechargeable battery；
The charging module 430 is additionally operable to stop according to the Voltage Drop amplitude of the rechargeable battery or continue to fill to described
Battery charges.
In alternate embodiments, as shown in fig. 7, first determining module 420 includes：
Voltage range determining unit 421, for determining the voltage range belonging to the initial cell voltage；
Rated voltage determining unit 422, for determining the first rated voltage corresponding to the voltage range and second specified
Voltage, first rated voltage are less than second rated voltage；
Overcharged voltage determining unit 423, for overcharged voltage corresponding to first rated voltage to be defined as into target mistake
Charging voltage；
Charging scheme determining unit 424, filled for charging scheme corresponding to first rated voltage to be defined as into target
Electric scheme.
In alternate embodiments, as shown in figure 8, the charging module 430 includes：
Fall threshold value determination unit 431, for determining that predeterminated voltage corresponding to the voltage range falls threshold value；
Stop charhing unit 432, if falling threshold value less than or equal to the predeterminated voltage for the Voltage Drop amplitude,
Then stop charging to the rechargeable battery；
Charhing unit 433, if falling threshold value more than the predeterminated voltage for the Voltage Drop amplitude, continue to institute
State rechargeable battery charging.
In alternate embodiments, the charhing unit 433 is specifically used for：
Charging scheme corresponding to second rated voltage is defined as target charging scheme, by second rated voltage
Corresponding overcharged voltage is defined as target overcharged voltage；
Continue to charge until the cell voltage of the rechargeable battery to the rechargeable battery according to the target charging scheme
Equal to the target overcharged voltage.
In alternate embodiments, the charger 40 also includes：
3rd determining module 450, for determining the voltage of predeterminated voltage test point；
Output module 460, if the voltage for the predeterminated voltage test point is not equal to predetermined voltage threshold, output is anti-
Receive a crime report and show；
If the voltage of the predeterminated voltage test point is equal to predetermined voltage threshold, battery voltage sensing module 410 performs
The step of initial cell voltage of the detection rechargeable battery.
It should be noted that NM content and modules perform the specific of step in embodiment corresponding to Fig. 6
Implementation can be found in the description of embodiment of the method shown in Fig. 1 to Fig. 5, repeat no more here.
In a kind of possible implementation, correlation function that Fig. 6 modules or unit are realized, which can combine, to be filled
The hardware circuit of electrical equipment realizes that a kind of structured flowchart of possible hardware circuit of charger can be with as shown in figure 9, charger
50 include filter rectifier 501, circuit for power conversion 502, control circuit 503, voltage and current detection circuit 504 and relay
Device 505, wherein：
One end of filter rectifier 501 is connected with AC power, and the other end and the power of filter rectifier 501 are changed
The first end connection of circuit 502, the second end of circuit for power conversion 502 are connected with one end of control circuit 503, control circuit
503 other end is connected with one end of voltage and current detection circuit 504, the other end of the voltage and current detection circuit 504 with
One end connection of relay 505, the three-terminal link of the other end of the relay 505 and the circuit for power conversion 502.
The process of embodiment of the method shown in above-mentioned Fig. 1 to Fig. 5 is realized such as using the charger of the hardware circuit shown in Fig. 9
Under：
When rechargeable battery accesses, control circuit 503 detects the initial of rechargeable battery both ends by voltage detecting circuit 504
Cell voltage, control circuit 503 determine the voltage range where initial cell voltage according to initial cell voltage, it is then determined that
Target charging scheme and overcharged voltage, that is, the current/voltage to be exported to rechargeable battery is determined, then passes through circuit for power conversion
502 charge the DC conversion after the filtered rectification of rectification circuit 501 for the current/voltage needed to rechargeable battery；Work as control
When circuit 503 processed detects that the cell voltage of rechargeable battery reaches overcharged voltage by voltage detecting circuit 504, control circuit
503 control relays 505 turn off with stop gives rechargeable battery charging, then control circuit 503 by voltage detecting circuit 504 not
The cell voltage of disconnected detection rechargeable battery, determines Voltage Drop amplitude of the rechargeable battery in preset duration, according to Voltage Drop
Amplitude determines the specification of rechargeable battery, it is determined that current overcharged voltage whether the overcharged voltage matched with rechargeable battery, it is determined that
During the specification that current overcharged voltage matches with rechargeable battery, then stop giving rechargeable battery charging, it is determined that current overcharge
When pressure mismatches with the specification of rechargeable battery, then turn-on relay 505 is to continue to charge to rechargeable battery.
, in alternate embodiments, can be with it should be appreciated that the hardware circuit shown in Fig. 9 is only used as a kind of example
Using other hardware circuits, to realize, detection of cell voltage etc. operates in the embodiment of the present invention, the hardware electricity of charger
The output devices such as keyboard, display screen, indicator lamp, sound equipment are may also include in road.
In the embodiment of the present invention, charger obtains charging when initial charge current and the relay adhesive of rechargeable battery
The adhesive cell voltage of battery, the internal resistance of cell of rechargeable battery is calculated, it is determined that and output and the internal resistance of cell of rechargeable battery
Charging current, in charging process, charger constantly adjusts charging current according to the voltage of the rechargeable battery got, with
The charging current of output is matched with the concrete condition of rechargeable battery, avoid causing to charge because the electric current of output is excessive or too small
Over-charging of battery or situation about being not fully filled, improve the life-span of rechargeable battery.
One of ordinary skill in the art will appreciate that realize all or part of flow in above-described embodiment method, being can be with
The hardware of correlation is instructed to complete by computer program, described program can be stored in a computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
Step in present invention method can be sequentially adjusted, merged and deleted according to actual needs.
Unit in device of the embodiment of the present invention can be combined, divided and deleted according to actual needs.
Above disclosure is only preferred embodiment of present invention, can not limit the right model of the present invention with this certainly
Enclose, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.
Claims (10)
- A kind of 1. charging method, it is characterised in that including：The initial cell voltage of the rechargeable battery is detected in the case where rechargeable battery accesses；Target charging scheme and target overcharged voltage are determined according to the initial cell voltage；Charged according to the target charging scheme to the rechargeable battery, and detect the cell voltage of the rechargeable battery；In the case where the cell voltage of the rechargeable battery is equal to the target overcharged voltage, temporarily cease to the charging electricity Charge in pond；Determine the Voltage Drop amplitude of the rechargeable battery；Stop or continue according to the Voltage Drop amplitude of the rechargeable battery to charge to the rechargeable battery.
- 2. according to the method for claim 1, it is characterised in that described to determine that target charges according to the initial cell voltage Scheme and target overcharged voltage include：Determine the voltage range belonging to the initial cell voltage；The first rated voltage corresponding to the voltage range and the second rated voltage are determined, first rated voltage is less than described Second rated voltage；Overcharged voltage corresponding to first rated voltage is defined as target overcharged voltage；Charging scheme corresponding to first rated voltage is defined as target charging scheme.
- 3. according to the method for claim 2, it is characterised in that the Voltage Drop amplitude according to the rechargeable battery is stopped Only or continue to include to rechargeable battery charging：Determine that predeterminated voltage corresponding to the voltage range falls threshold value；If the Voltage Drop amplitude falls threshold value less than or equal to the predeterminated voltage, stop filling to the rechargeable battery Electricity；If the Voltage Drop amplitude falls threshold value more than the predeterminated voltage, continue to charge to the rechargeable battery.
- 4. according to the method in claim 2 or 3, it is characterised in that described to continue to include to rechargeable battery charging：Charging scheme corresponding to second rated voltage is defined as target charging scheme, second rated voltage is corresponding Overcharged voltage be defined as target overcharged voltage；Continue to charge until the cell voltage of the rechargeable battery is equal to the rechargeable battery according to the target charging scheme The target overcharged voltage.
- 5. according to the method for claim 1, it is characterised in that the initial cell voltage of the detection rechargeable battery it It is preceding also to include：Determine the voltage of predeterminated voltage test point；If the voltage of the predeterminated voltage test point is not equal to predetermined voltage threshold, output reversal connection warning；If the voltage of the predeterminated voltage test point is equal to predetermined voltage threshold, the first of the detection rechargeable battery is performed The step of beginning cell voltage.
- A kind of 6. charger, it is characterised in that including：Battery voltage sensing module, for being accessed in rechargeable battery in the case of detect the rechargeable battery initial cells electricity Pressure；First determining module, for determining target charging scheme and target overcharged voltage according to the initial cell voltage；Charging module, for being charged according to the target charging scheme to the rechargeable battery, the battery voltage sensing module It is additionally operable to detect the cell voltage of the rechargeable battery；The charging module is additionally operable in the case where the cell voltage of the rechargeable battery is equal to the target overcharged voltage, temporarily When stop give the rechargeable battery charging；Second determining module, for determining the Voltage Drop amplitude of the rechargeable battery；The charging module is additionally operable to stop or continue to the rechargeable battery according to the Voltage Drop amplitude of the rechargeable battery Charging.
- 7. charger according to claim 6, it is characterised in that first determining module includes：Voltage range determining unit, for determining the voltage range belonging to the initial cell voltage；Rated voltage determining unit, for determining the first rated voltage corresponding to the voltage range and the second rated voltage, institute State the first rated voltage and be less than second rated voltage；Overcharged voltage determining unit, for overcharged voltage corresponding to first rated voltage to be defined as into target overcharged voltage；Charging scheme determining unit, for charging scheme corresponding to first rated voltage to be defined as into target charging scheme.
- 8. charger according to claim 7, it is characterised in that the charging module includes：Fall threshold value determination unit, for determining that predeterminated voltage corresponding to the voltage range falls threshold value；Stop charhing unit, if falling threshold value less than or equal to the predeterminated voltage for the Voltage Drop amplitude, stop Charged to the rechargeable battery；Charhing unit, if falling threshold value more than the predeterminated voltage for the Voltage Drop amplitude, continue to the charging Battery charges.
- 9. the charger according to claim 7 or 8, it is characterised in that the charhing unit is specifically used for：Charging scheme corresponding to second rated voltage is defined as target charging scheme, second rated voltage is corresponding Overcharged voltage be defined as target overcharged voltage；Continue to charge until the cell voltage of the rechargeable battery is equal to the rechargeable battery according to the target charging scheme The target overcharged voltage.
- 10. charger according to claim 6, it is characterised in that the charger also includes：3rd determining module, for determining the voltage of predeterminated voltage test point；Output module, if the voltage for the predeterminated voltage test point is not equal to predetermined voltage threshold, output reversal connection warning；If the voltage of the predeterminated voltage test point is equal to predetermined voltage threshold, battery voltage sensing module performs the detection The step of initial cell voltage of the rechargeable battery.
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Effective date of registration: 20200601 Address after: 213000 No.63 Longzi Road, Wujin national high tech Industrial Development Zone, Changzhou City, Jiangsu Province Patentee after: Hairisheng automobile electronic technology (Changzhou) Co., Ltd Address before: 518000, No. 8, sunrise Road, third industrial district, Songgang street, Baoan District, Guangdong, Shenzhen, Luotian Patentee before: Hairishen Electrical Appliance Products (Shenzhen) Co.,Ltd. |