CN108828456A - Full method, apparatus and the charger including the device are sentenced in nickel-metal hydride battery charging - Google Patents
Full method, apparatus and the charger including the device are sentenced in nickel-metal hydride battery charging Download PDFInfo
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- CN108828456A CN108828456A CN201810757199.0A CN201810757199A CN108828456A CN 108828456 A CN108828456 A CN 108828456A CN 201810757199 A CN201810757199 A CN 201810757199A CN 108828456 A CN108828456 A CN 108828456A
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- nickel
- voltage
- metal hydride
- hydride battery
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
Abstract
The application provides a kind of charging of nickel-metal hydride battery and sentences full method, including：The voltage for the nickel-metal hydride battery being electrically charged is acquired in real time；Determine that voltage tends towards stability based on voltage collected；After determining that voltage tends towards stability, determine from first time needed for the voltage rising predetermined voltage currently acquired；When currently determining first time being greater than the upper first time once determined, the first time that the last time determines is determined as minimum time；Continue the voltage of acquisition nickel-metal hydride battery, and determines from the second time needed for the voltage rising predetermined voltage currently acquired；And when the second time being greater than or equal to N times of minimum time, determine that nickel-metal hydride battery is full of, wherein N is set greater than 1 and is less than the critical value so that nickel-metal hydride battery overcharge.
Description
Technical field
The charger field that the application belongs to for rechargeable battery charging, more specifically, this application involves nickel-metal hydride batteries to fill
Electricity sentences full method, apparatus and the charger including the device.
Background technique
Traditional nickel-hydrogen charger carries out full of judgement nickel-metal hydride battery using two kinds of technologies using main.One is adopt
Sentenced with-Dv and stop technology, i.e., when nickel-metal hydride battery overcharges, cell voltage can decline, by setting a fixed voltage drop-out value
(such as 5mv, 10mv etc.) carries out full of judgement nickel-metal hydride battery.Second is timing charging technique, i.e., regardless of battery status,
It charges and will stop after all charging a set time.- Dv technology there are the problem of have：Identical charging current is to different capabilities
When battery is charged, the amplitude of battery decline is different after over-charging of battery, sets a fixed voltage drop-out value, is difficult to fit
With all batteries.When charging current is very big, over-charging of battery can make battery temperature rise rapidly, security risk occur, to electricity
Pond damage also can be very big.Timing charging technique there are the problem of have：The general charger for using timing charging technique, usually charges
Electric current is less than normal, is full of to battery and needs the long period.And battery status can not be determined, such as the battery filled with
It is put into charger, it is also desirable to charge a regular time, user experience is poor.
Summary of the invention
In order to solve the problems, such as it is above-mentioned it is in the prior art at least one, the present invention propose nickel-metal hydride battery charging sentences full side
Method, device and the charger including the device.
According to the one side of the application, a kind of charging of nickel-metal hydride battery sentences full method and includes：The ni-mh being electrically charged is acquired in real time
The voltage of battery；Determine that voltage tends towards stability based on voltage collected；After determining that voltage tends towards stability, determine from current
First time needed for the voltage of acquisition rises predetermined voltage；It is greater than upper first once determined in currently determining first time
When the time, the first time that the last time determines is determined as minimum time；Continue acquire nickel-metal hydride battery voltage, and determine from
Second time needed for the voltage currently acquired rises predetermined voltage；And when the second time was greater than or equal to the N of minimum time
Times when, determine that nickel-metal hydride battery is full of, wherein N be set greater than 1 and be less than so that nickel-metal hydride battery overcharge critical value.
In one embodiment, this method may also include：Determining the voltage and the upper electricity once acquired currently acquired
When the difference of pressure is less than predetermined value, determine that the voltage for the nickel-metal hydride battery being electrically charged tends towards stability.
In one embodiment, wherein when predetermined voltage may be configured as to voltage collected progress analog-to-digital conversion
The integral multiple of analog-to-digital conversion unit, and determined based on the charging current of the charger to charge to nickel-metal hydride battery, it is described to fill
Electric current is bigger, and the predetermined voltage is bigger.
In one embodiment, wherein the size of N can be based on the charging electricity of the charger to charge to nickel-metal hydride battery
It flows with operating temperature and determines.
In one embodiment, N may be greater than equal to 4 and be less than or equal to 6.
According to the another aspect of the application, it includes acquisition module and comparison module that full device is sentenced in a kind of charging of nickel-metal hydride battery,
Wherein, acquisition module is configured to acquire the voltage for the nickel-metal hydride battery being electrically charged in real time；Comparison module is configured to collected
Voltage determines that voltage tends towards stability；Acquisition module is additionally configured to determine after determine that voltage tends towards stability from currently acquiring
First time needed for voltage rises predetermined voltage；Comparison module is additionally configured to：It is greater than upper one in currently determining first time
When the first time of secondary determination, the first time that the last time determines is determined as minimum time；Acquisition module is additionally configured to：By
Comparison module continues to acquire the voltage of nickel-metal hydride battery after determining minimum time, and determines and rise in advance from the voltage currently acquired
Second time needed for constant voltage；Comparison module is additionally configured to：When the second time being greater than or equal to N times of minimum time, really
Determine nickel-metal hydride battery to be full of, wherein N is set greater than 1 and is less than the critical value so that nickel-metal hydride battery overcharge.
In one embodiment, wherein comparison module can determine the voltage and the upper electricity once acquired currently acquired
When the difference of pressure is less than predetermined value, determine that the voltage for the nickel-metal hydride battery being electrically charged tends towards stability.
In one embodiment, wherein when predetermined voltage may be configured as to voltage collected progress analog-to-digital conversion
The integral multiple of analog-to-digital conversion unit, and determined based on the charging current of the charger to charge to nickel-metal hydride battery, charging electricity
Stream is bigger, and predetermined voltage is bigger.
In one embodiment, the size of N can charging current based on the charger to charge to nickel-metal hydride battery and
Operating temperature determines.
In one embodiment, N may be greater than equal to 4 and be less than or equal to 6.
According to the another aspect of the application, the charger that a kind of pair of nickel-metal hydride battery charges includes nickel-metal hydride battery as above
Full device is sentenced in charging.
In one embodiment, breaker device, breaker device may also include to the charger that nickel-metal hydride battery charges
Full device is sentenced with nickel-metal hydride battery to connect, and is configured in response to determining that nickel-metal hydride battery is full of, so that charger stops to ni-mh electricity
Pond charging.
Sentence full method and apparatus according to the charging of the nickel-metal hydride battery of the disclosure to be filled based on nickel-metal hydride battery with constant current
Voltage determines battery status with the variation relation in charging time when electric, on the one hand, for the ni-mh electricity of various models
Pond has general applicability, on the other hand, improves nickel-metal hydride battery charging and sentences full accuracy.
Detailed description of the invention
Various aspects of the reference attached drawing to the application are made more detailed description by the application in order to better understand.It can
To understand, the drawings and detailed description are the description to the application preferred embodiment, rather than limit this in any way
The range of application.
Fig. 1 is schematically shown can nickel-metal hydride battery voltage versus time curve during the charging process；
Fig. 2 is to show the schematic block diagram that full device is sentenced according to the charging of the nickel-metal hydride battery of one embodiment of the application；
Fig. 3 is the schematic block diagram for showing the charger according to one embodiment of the application；And
Fig. 4 is to show to carry out the flow chart that full method is sentenced in charging to nickel-metal hydride battery according to one embodiment of the application.
Specific embodiment
In the following description, for illustrative purposes, many details are elaborated to provide to various exemplary implementations
The thorough understanding of mode.It will be apparent, however, that various illustrative embodiments can not have the case where these details
Implemented down or by one or more equivalent arrangements.In other examples, well known construction and device shows in form of a block diagram
Out to avoid unnecessarily making various illustrative embodiments unclear.
When element or layer be referred at another element or layer "upper", " being connected to " or " being attached to " another element or layer,
It can directly on another element or layer, be connected directly to or be attached directly to another element or layer, or Jie may be present
In intermediate element or layer.However, when element or layer be referred to directly on another element or layer, " being connected directly to " or
When " being attached directly to " another element or layer, there is no elements or layer between.
Although term " first ", " second " are used to describe various elements herein, component, module etc., these yuan
Part, assembly module should not be limited by these terms.These terms (such as " first ", " second ") be used for by an element, component,
Area's module is distinguished with another element, component, module.Therefore, discussed below in the case where not departing from the introduction of the disclosure
First element, first assembly, the first module can be described as second element, the second component, the second module.
Term used herein is the purpose for description specific embodiment, and is not intended to be limiting.Unless
Context clearly otherwise indicates, and otherwise singular " one " as used herein, "one" and " described " are intended to also wrap
Include plural form.In addition, term " include, " and/or " comprising " specifies illustrated feature, whole when used in this manual
The presence of body, step, operation, element, component and/or combination thereof, but be not excluded for one or more other features, entirety,
The presence or addition of step, operation, element, component and/or combination thereof.
Unless otherwise defined, otherwise whole terms (including technical terms and scientific terms) used herein have and such as sheet
The identical meaning of the disclosure normally understood meaning of those of ordinary skill in the art.Term is such as determined in common dictionary
Those of justice should be interpreted that with the meaning consistent with their meanings in the contexts of the association area, and will not be with
Idealization or meaning too formal explain, unless being clearly defined as herein in this way
Fig. 1 schematically shows only the voltage of the nickel-metal hydride battery in the case where charging current is constant as charging voltage becomes
The curve of change.
In Fig. 1, abscissa indicates charging time T, and the unit of time is minute (min), and ordinate is the nickel being electrically charged
The voltage of hydrogen battery and the charging current to charge to nickel-metal hydride battery, wherein voltage indicates that unit is volt (V), charging with U
Electric current indicates that unit is ampere (A) with I.If the voltage of nickel-metal hydride battery is K with the change rate in charging time, then K can be described as nickel
Derivative of the voltage U of hydrogen battery to charging time T.In the case where carrying out constant-current charge to nickel-metal hydride battery, complete ni-mh electricity
Pond charging curve can be described as：It charges initial stage in battery, K slowly increases, i.e., from t0 to t1, the voltage of nickel-metal hydride battery rises
It is relatively slow；It charging after a period of time, K is held essentially constant during a period of time, i.e., in t1 to during t2, the voltage of nickel-metal hydride battery
It tends towards stability；Close to full of when, K quickly increases, i.e. t2 is to during t3, the voltage rapid increase of nickel-metal hydride battery；It will be filled with shortly
When, K starts to reduce, if nickel-metal hydride battery is full of at t4, in t3 to during t4, and the climbing speed phase of the voltage of nickel-metal hydride battery
Rate at t3 is gradually reduced；After nickel-metal hydride battery is overcharged, K comparatively fast reduces, that is, after t 4, nickel-metal hydride battery
Voltage increase rate reduces quickly.
The application is changed with time rule based on the voltage of nickel-metal hydride battery during the charging process, by detection K by quick
Increase (t2 is to during t3) starts reduced inflection point (i.e. t3) to K and carries out battery full of judgement.
Referring to Fig. 2, it includes acquisition module 110 and comparison module 120 that full device 100 is sentenced in nickel-metal hydride battery charging.
Acquisition module 110 is configured to acquire the voltage for the nickel-metal hydride battery being electrically charged in real time.Implemented according to the one of the application
Mode, comparison module 120 can be used for determining the state that the voltage of nickel-metal hydride battery tends towards stability, i.e., for determining the electricity of nickel-metal hydride battery
The basicly stable state reached for the first time after pressure charging, for example, voltage reaches t1 shown in Fig. 1 to the stabilization shape during t2
State.In one embodiment, acquisition module 110 can acquire the electricity of the nickel-metal hydride battery after starting to charge with predetermined time interval
Pressure.In one embodiment, acquisition module 110 may include Voltage measure, analog-digital converter and timer.Voltage measure
The voltage that nickel-metal hydride battery can be acquired may be, for example, voltmeter, but the application is without being limited thereto.Acquisition module 110 may also include such as
The storage device of register.Acquisition module 110 can acquire the voltage of nickel-metal hydride battery by Voltage measure.Analog-digital converter can
The analog voltage of acquisition is converted into digital voltage and is stored in register the voltage after conversion.
Comparison module 120 is based on voltage (such as the voltage being stored in register) judgement acquired by acquisition module 110
Whether the difference of the voltage of the voltage and last acquisition that currently acquire is less than predetermined value.Comparison module 120 is current based on determining
The difference of the voltage of acquisition and the voltage of last acquisition is less than predetermined value, determines that the voltage for the nickel-metal hydride battery being electrically charged tends to
Stablize.For example, in order to which the judgement for making the voltage for nickel-metal hydride battery whether tend towards stability is more accurate, can continuous several times (for example,
6 times) voltage of acquisition, and when the difference of voltage of this acquisition in the voltage of multi collect and the last voltage acquired is equal
When 1 analog-to-digital conversion unit (for example, 1 analog-to-digital conversion unit of the analog-digital converter of acquisition module 110) is interior, determination is filled
The voltage of the nickel-metal hydride battery of electricity tends towards stability.
Next, in one embodiment, acquisition module 110 can be in the electricity for determining nickel-metal hydride battery by the comparison module
Pressure continues the voltage for the nickel-metal hydride battery that acquisition is electrically charged after tending towards stability, and determines from the voltage currently acquired and rise predetermined voltage
Required first time.
When acquisition module 110 can be determined by timer from first needed for the voltage rising predetermined voltage currently acquired
Between.Predetermined voltage can be determined based on the size of the charging current to charge to nickel-metal hydride battery.For example, charging current is bigger,
Predetermined voltage can be set to bigger.Predetermined voltage may be configured as steady state value, for example, due to needing to simulate by analog-digital converter
Voltage is converted to digital voltage, therefore, can set predetermined voltage to carry out voltage collected modulus when analog-to-digital conversion
The integral multiple of conversion unit.For example, may be configured as the integral multiple of the analog-to-digital conversion unit of the analog-digital converter of acquisition module 110.
For example, when the digit of analog-digital converter is 12 and exports digital voltage with binary system, the analog-to-digital conversion of the analog-digital converter
Unit (least significant bit) is 1/212。
Comparison module 120 can be configured to when currently determining first time being greater than the upper first time once determined, will
The first time that last time determines is determined as minimum time.Due to currently determining first time determined with the last time first when
Between both correspond to the voltage of nickel-metal hydride battery to rise predetermined voltage and predetermined voltage be steady state value, so identified first time gets over
Small, the voltage increase rate of nickel-metal hydride battery is faster.It referring to Fig.1 and its describes, for example, institute is really in nickel-metal hydride battery close to when being full of
Fixed first time is smaller and smaller.Once currently determining first time is greater than the last first time determined, then show nickel
The voltage increase rate of hydrogen battery starts to reduce.At this moment, it may be determined that during the first time that the last time determines, raising speed on voltage
Rate is most fast, and can determine out of, currently determining first time, and voltage increase rate reduces.That is, voltage change ratio is most
Between end point of the big point T3 about in the starting point of the upper first time once measured to the first time currently measured.Ginseng
According to change curve and its description of the voltage with the charging time of the nickel-metal hydride battery of Fig. 1, it can determine that nickel-metal hydride battery will be filled with.
After the Position Approximate for determining the maximum inflection point of voltage change ratio (that is, T3), next, needing to determine nickel-metal hydride battery
When it is full of.Correspondingly, acquisition module 110 is further configured to continue to adopt after determining minimum time by comparison module 120
Collect the voltage of nickel-metal hydride battery, and determine from the second time needed for the voltage rising predetermined voltage currently acquired, wherein this is pre-
Constant voltage is identical as predetermined voltage when determining first time.Comparison module 120 is further configured to：Be greater than when the second time or
When equal to N times of minimum time, determine that nickel-metal hydride battery is full of, wherein N is set greater than 1 and is less than so that nickel-metal hydride battery is excessive
The critical value of charging.I.e. comparison module 120 can be configured to for N times of the second time and minimum time being compared.The size of N
It can be determined based on the charging current of the charger to charge to nickel-metal hydride battery and operating temperature.For example, the value of N can based on pair
Nickel-metal hydride battery charging charger charging current and operating temperature by after charging nickel-metal hydride battery carry out discharge test come
It determines.The empirical value of N, which may be greater than, is less than or equal to 6 equal to 4.But the value of N is without being limited thereto.
When the second time being less than N times of minimum time, continue to charge to nickel-metal hydride battery, and acquisition module 110 continues to adopt
The voltage for collecting nickel-metal hydride battery is greater than or equal to N times of minimum time until the second time.
It include that the charging of the nickel-metal hydride battery referring to described in Fig. 2 is sentenced to the charger 10 that nickel-metal hydride battery charges referring to Fig. 3
Full device 100.Charger 10 may also include the conventional configuration of nickel-metal hydride battery charger, in order to more clearly describe the hair of the application
Bright design will not be described in great detail well known structure and technology.
According to the application embodiment, charger 10, which may also include, sentences what full device 100 was connect with nickel-metal hydride battery
Breaker device.For example, the comparison unit 120 that breaker device can sentence full device 100 with nickel-metal hydride battery can be connect (for example, electrical connection
Or communicatedly connect).It can be wired connection (by conduction that breaker device and nickel-metal hydride battery, which sentence the connection between full device 100,
Electrical connection) or it is wirelessly connected (such as bluetooth).Breaker device can be configured in response to determining the ni-mh by comparison unit 120
Battery is full of, so that charger 10 stops charging to nickel-metal hydride battery.For example, breaker device may include or can be control charging
The switch of device 10.The switch can be triode, metal-oxide-semiconductor etc..Breaker device may be in response to determine the nickel-metal hydride battery full of passing through
The switch that is included therein or by itself making charger 10 stop charging to nickel-metal hydride battery.In another embodiment party of the application
In formula, switch can be provided independently from breaker device, and breaker device can be connected with switch.Breaker device may be in response to by comparing
Device determines that nickel-metal hydride battery orders full of generation and the order can be transferred to the switch of charger 10.The switch of charger 10
It may be in response to the order, stop charging to nickel-metal hydride battery.
Referring to Fig. 4, it may include following steps that full method 400 is sentenced in the charging of nickel-metal hydride battery.
In step S410, the voltage for the nickel-metal hydride battery being electrically charged is acquired in real time.It in one embodiment, can be by such as
The Voltage measure of voltmeter acquires the voltage of nickel-metal hydride battery.And it can be by the analog voltage of acquisition by analog-digital converter
It is converted to digital voltage and is stored in register the voltage after conversion.
In step S420, determine that voltage tends towards stability based on voltage collected.According to the application embodiment,
It can first determine that the state that the voltage of nickel-metal hydride battery tends towards stability, that is, determine the base reached for the first time after the voltage charging of nickel-metal hydride battery
This stable state, for example, voltage reaches t1 shown in Fig. 1 to the stable state during t2.It in one embodiment, can be
The voltage of the nickel-metal hydride battery is acquired after starting to charge with predetermined time interval.In one embodiment, based on the electricity of acquisition
Whether the difference of the voltage that pressure (such as the voltage being stored in register) judgement currently acquires and the voltage of last time acquisition is small
In predetermined value.It is less than predetermined value based on the difference for the voltage for determining the voltage currently acquired and last acquisition, determines to be filled
The voltage of the nickel-metal hydride battery of electricity tends towards stability.The predetermined value can be set to the voltage value much smaller than measurement.For example, in order to make for
The judgement whether voltage of nickel-metal hydride battery tends towards stability is more accurate, can continuous several times (for example, 6 times) acquisition voltage, and
When the difference of the voltage acquired of this in the voltage of multi collect and the voltage of last acquisition is in 1 analog-to-digital conversion unit
When, determine that the voltage for the nickel-metal hydride battery being electrically charged tends towards stability.
Next, after determining that voltage tends towards stability, being determined predetermined from the voltage rising currently acquired in step S430
First time needed for voltage.In one embodiment, can continue to adopt after the voltage for determining nickel-metal hydride battery tends towards stability
Collect the voltage for the nickel-metal hydride battery being electrically charged, and determines from first time needed for the voltage rising predetermined voltage currently acquired.
In alternative embodiments, it can be determined by timer from the voltage currently acquired and be risen needed for predetermined voltage
At the first time.Predetermined voltage can be determined based on the charging current of the charger to charge to nickel-metal hydride battery.For example, charging electricity
Stream is bigger, and predetermined voltage can be set to bigger.Predetermined voltage may be configured as steady state value, for example, due to needing to pass through analog-to-digital conversion
Analog voltage is converted to digital voltage by device, therefore, can set predetermined voltage to carry out analog-to-digital conversion to voltage collected
When analog-to-digital conversion unit integral multiple.For example, the modulus that predetermined voltage may be configured as the analog-digital converter of acquisition module 110 turns
Change the integral multiple of unit.For example, the modulus turns when the digit of analog-digital converter is 12 and exports digital voltage with binary system
The analog-to-digital conversion unit (least significant bit) of parallel operation is 1/212。
It, will be last true when currently determining first time being greater than the upper first time once determined in step S440
Fixed first time is determined as minimum time.Since the first time that currently determining first time determines with the last time is corresponding
Rising predetermined voltage and predetermined voltage in the voltage of nickel-metal hydride battery is steady state value, so identified first time is smaller, ni-mh
The voltage increase rate of battery is faster.Referring to Fig.1 and its describe, for example, when nickel-metal hydride battery is approached and is full of, identified first
Time is smaller and smaller.Once currently determining first time is greater than the last first time determined, then show nickel-metal hydride battery
Voltage increase rate starts to reduce and can determine that out of, currently determining first time, voltage increase rate reduces.That is,
The maximum point T3 of voltage change ratio is about in the starting point of the upper first time once measured to the first time currently measured
Between end point.Curve and its description referring to Fig.1, can determine that nickel-metal hydride battery will be filled with.
Determining the Position Approximate of the maximum inflection point of voltage change ratio (T3) (in the voltage and time graph of nickel-metal hydride battery
Position) after, next, needing to determine when nickel-metal hydride battery is full of.Correspondingly, in step S450, continue to acquire nickel-metal hydride battery
Voltage, and determine from the voltage that currently acquires rise predetermined voltage needed for the second time, the predetermined voltage and step
Predetermined voltage in S430 is identical.
Determine that nickel-metal hydride battery is full of when the second time being greater than or equal to N times of minimum time in step S460, wherein
N is set greater than 1 and is less than the critical value so that nickel-metal hydride battery overcharge.The size of N can be based on charging to nickel-metal hydride battery
The charging current and operating temperature of charger determines.For example, the value of N can filling based on the charger to charge to nickel-metal hydride battery
Electric current and operating temperature are determined by carrying out discharge test to the nickel-metal hydride battery after charging.The empirical value of N may be greater than
It is less than or equal to 6 in 4.But the value of N is without being limited thereto.
When the second time being less than N times of minimum time, continue to charge to nickel-metal hydride battery, and acquisition module 110 continues to adopt
The voltage for collecting nickel-metal hydride battery is greater than or equal to N times of minimum time until the second time.
Term " module " as used in this specification can intention unit, the unit is for example including hardware, software and firmware
Or in which one in two or more combinations.Module is interchangeably used, for example, can with unit, logic, logic unit,
Component or circuit are used interchangeably.Module can be the minimum unit or part of it of the component of configured in one piece.Module, which can be, to be held
The minimum unit or component of row one or more functions.Module can mechanically or electromagnetic mode is implemented.For example, module can
Including having known, following by exploitation or execution specific operation specific integrated circuit (ASIC) chip, field programmable gate
At least one of array or programmable logic device.
Sentence full method and apparatus according to the charging of the nickel-metal hydride battery of the disclosure to be filled based on nickel-metal hydride battery with constant current
Voltage determines battery status with the variation relation in charging time when electric, on the one hand, for the ni-mh electricity of various models
Pond has general applicability, on the other hand, improves nickel-metal hydride battery charging and sentences full accuracy.
Although describing the disclosure referring to illustrative embodiments, those skilled in the art can obtain enlightening to carry out
Various changes and modifications.It those of falls within the scope of appended claim change and modification is also intended to comprising in the disclosure.
Claims (12)
1. full method is sentenced in a kind of nickel-metal hydride battery charging, including：
The voltage for the nickel-metal hydride battery being electrically charged is acquired in real time；
Determine that the voltage tends towards stability based on voltage collected；
After determining that the voltage tends towards stability, when determining from first needed for the voltage rising predetermined voltage currently acquired
Between；
When currently determining first time being greater than the upper first time once determined, the first time that the last time is determined is determined
For minimum time；
Continue the voltage of acquisition nickel-metal hydride battery, and determination rises second needed for the predetermined voltage from the voltage currently acquired
Time；And
When second time being greater than or equal to N times of the minimum time, determine that the nickel-metal hydride battery is full of, wherein N is set
It is set to greater than 1 and is less than the critical value so that the nickel-metal hydride battery overcharge.
2. full method is sentenced in nickel-metal hydride battery charging as described in claim 1, further include：Determining the voltage and upper one currently acquired
When the difference of the voltage of secondary acquisition is less than predetermined value, determine that the voltage for the nickel-metal hydride battery being electrically charged tends towards stability.
3. full method is sentenced in nickel-metal hydride battery charging as described in claim 1, wherein the predetermined voltage is set as to collected
The integral multiple of analog-to-digital conversion unit when voltage progress analog-to-digital conversion, and based on the charging charged to the nickel-metal hydride battery
The charging current of device determines that the charging current is bigger, and the predetermined voltage is bigger.
4. full method is sentenced in nickel-metal hydride battery as described in claim 1 charging, wherein the size of N be based on to the nickel-metal hydride battery into
The charging current and operating temperature of the charger of row charging determine.
5. full method is sentenced in nickel-metal hydride battery charging as claimed in claim 4, wherein N is more than or equal to 4 and to be less than or equal to 6.
6. full device, including acquisition module and comparison module are sentenced in a kind of nickel-metal hydride battery charging, wherein
The acquisition module is configured to acquire the voltage for the nickel-metal hydride battery being electrically charged in real time；
The comparison module is configured to voltage collected and determines that the voltage tends towards stability；
The acquisition module is additionally configured to determine after determining that the voltage tends towards stability to be risen in advance from the voltage currently acquired
First time needed for constant voltage；
The comparison module is additionally configured to：It, will be upper when currently determining first time being greater than the upper first time once determined
Once determining first time is determined as minimum time；
The acquisition module is additionally configured to：Continue to acquire nickel-metal hydride battery after determining the minimum time by the comparison module
Voltage, and determine and from the voltage currently acquired rise the second time needed for the predetermined voltage；And
The comparison module is additionally configured to：When second time being greater than or equal to N times of the minimum time, described in determination
Nickel-metal hydride battery is full of, wherein N is set greater than 1 and is less than the critical value so that the nickel-metal hydride battery overcharge.
7. full device is sentenced in nickel-metal hydride battery charging as claimed in claim 6, wherein the comparison module is currently acquired in determination
When the difference of voltage and the voltage of last acquisition is less than predetermined value, determine that the voltage for the nickel-metal hydride battery being electrically charged tends towards stability.
8. full device is sentenced in nickel-metal hydride battery charging as claimed in claim 6, wherein the predetermined voltage is set as to collected
The integral multiple of analog-to-digital conversion unit when voltage progress analog-to-digital conversion, and based on the charging charged to the nickel-metal hydride battery
The charging current of device determines that the charging current is bigger, and the predetermined voltage is bigger.
9. full device is sentenced in nickel-metal hydride battery charging as claimed in claim 6, the size of N is based on charging to the nickel-metal hydride battery
Charger charging current and operating temperature determine.
10. full device is sentenced in nickel-metal hydride battery charging as claimed in claim 9, wherein N is more than or equal to 4 and to be less than or equal to 6.
11. the charger that a kind of pair of nickel-metal hydride battery charges, the charger include：
Full device is sentenced in nickel-metal hydride battery charging as described in any one of claim 6 to claim 10.
12. charger as claimed in claim 11 further includes breaker device, the breaker device and the nickel-metal hydride battery are sentenced completely
Device connection, and be configured to be full of in response to the determination nickel-metal hydride battery, so that the charger stops to the nickel-metal hydride battery
Charging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810757199.0A CN108828456A (en) | 2018-07-11 | 2018-07-11 | Full method, apparatus and the charger including the device are sentenced in nickel-metal hydride battery charging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810757199.0A CN108828456A (en) | 2018-07-11 | 2018-07-11 | Full method, apparatus and the charger including the device are sentenced in nickel-metal hydride battery charging |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112098864A (en) * | 2020-09-25 | 2020-12-18 | Oppo广东移动通信有限公司 | Leakage current detection method and device, electronic equipment and storage medium |
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Application publication date: 20181116 |