CN107437642A - A kind of intelligent charging method and device - Google Patents
A kind of intelligent charging method and device Download PDFInfo
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- CN107437642A CN107437642A CN201710664933.4A CN201710664933A CN107437642A CN 107437642 A CN107437642 A CN 107437642A CN 201710664933 A CN201710664933 A CN 201710664933A CN 107437642 A CN107437642 A CN 107437642A
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- 238000007600 charging Methods 0.000 title claims abstract description 139
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000005611 electricity Effects 0.000 claims description 15
- 238000001514 detection method Methods 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052744 lithium Inorganic materials 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 7
- 230000010287 polarization Effects 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000005518 electrochemistry Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- H01M10/443—Methods for charging or discharging in response to temperature
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/00714—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current
- H02J7/00718—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery charging or discharging current in response to charge current gradient
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
- H02J7/007184—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage in response to battery voltage gradient
-
- H02J7/0091—
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The present embodiments relate to charging field, and in particular to a kind of intelligent charging method and device, including：The battery temperature value and battery voltage value of battery to be charged are detected in real time；According to the battery temperature value of acquisition and battery voltage value dynamic adjustment charging voltage value and charging current value.The cooperation that the present invention passes through intelligent charger and intelligent battery, communicated by SMBUS/I2C and obtain the real-time voltage of battery-end and temperature data, the flexible constant current value that output is set and charging limitation magnitude of voltage, so as to more optimize under low temperature, high-temperature condition safely and effectively to lithium cell charging.
Description
Technical field
The present invention relates to charging field, and in particular to a kind of intelligent charging method and device.
Background technology
Battery after electric discharge consumes, is recovered in its energy by charging, and and can is discharged again, forms charge and discharge circulation.One
As charged with DC current.Under different situations, using different the charging methods such as charging of constant-current charge, constant voltage, floating charging, tiny stream
Current charge, boost charge or a combination of these methods formula charging etc..
According to the formula of electricity=voltage * electric current * times, in the case where electricity is fixed, only by increase voltage or
The mode that person increases electric current shortens the charging interval.
High-voltage charging：High voltage low current pattern, increase voltage, it is necessary to design stacked buck circuit in the charge circuit.
During charging, charging device can generate heat, and battery can also generate heat, and influence the security of battery.
Low pressure charges：Low voltage and high current pattern, increase electric current, all introduced in charging device circuit and battery circuit
MCU one chip microcomputers replace reduction voltage circuit.On the premise of low voltage and high current, realize that segmentation is horizontal by open voltage ring
The output of the electric current of stream.
Lithium cell charging process is mostly CC-CV patterns at present, and concrete reason is as follows：The electricity of battery when the 1st, because just starting to fill
Pressure is very low, if not constant-current charge, the life-span of charging current very big battery and charging device will be affected.Such as：Setting
Charging device output voltage U0=4V, cell voltage U1=1V, internal resistance of cell R0 are set to 30mohm, then electric current I=U0-U1/R0
=100A.2, until battery soon full of when, use constant-voltage charge instead, the constant pressure value of this voltage, be exactly when battery is full of end electricity
Pressure value --- reach this voltage, the terminal voltage of battery and the output voltage of charging device are essentially equal, and you are exactly to be further continued for
Charging, can fill electricity yet.The purpose so done, it is to prevent battery to be overcharged.3rd, the internal resistance of battery refers to that battery exists
During work, electric current flows through the resistance suffered by inside battery, is generally divided into AC internal Resistance and DC internal resistance, due in rechargeable battery
Very little is hindered, because electrode capacity polarizes when surveying DC internal resistance, produces polarization resistance, therefore its actual value can not be measured, and surveys its friendship
Stream internal resistance can exempt the influence of polarization resistance, draw value in real.AC internal Resistance method of testing is:One is equivalent to using battery
The characteristics of individual active pull-up, give battery one 1000HZ, 50mA constant current is a series of to its voltage sample rectifying and wave-filtering etc.
Processing is so as to accurately measure its resistance.4th, for lithium ion battery, the internal resistance of cell is divided into ohmic internal resistance and polarization resistance.Europe
Nurse internal resistance is made up of the contact resistance of electrode material, electrolyte, membrane electrical resistance and each several part part.Polarization resistance refers to electrochemistry
The resistance as caused by polarization during reaction, including resistance caused by the polarization of electrochemistry pole and concentration polarization.The reality of lithium ion battery
Internal resistance refers to battery at work, and electric current flows through the resistance suffered by inside battery.The internal resistance of cell is big, can produce a large amount of Joule heats
Cause battery temperature to raise, cause the reduction of battery discharge operating voltage, discharge time shortens, battery performance, life-span etc. are caused
Have a strong impact on.5th, the accurately calculating of internal resistance of cell size is considerably complicated, and can constantly change during battery use.According to
Experience have shown that the volume of lithium ion battery is bigger, internal resistance is smaller；Vice versa.
But some special application scenarios, such as under water, lithium cell charging environment is often complicated more on electronic device
Become, if charged using traditional CC-CV patterns, on the one hand have a great impact to battery life, on the other hand, battery charging
Effect also is difficult to ensure, while can have very big potential safety hazard.
Therefore, develop a kind of can adjust output voltage, electric current according to the temperature of battery, voltage status come dynamic and intelligent
Charging scheme, just become very urgent.
The content of the invention
, can not be according to electricity to solve existing charging device the embodiments of the invention provide a kind of intelligent charging method and device
Temperature, the technical problem of voltage status dynamic and intelligent regulation charging in pond.
A kind of intelligent charging method provided in an embodiment of the present invention, including：
The battery temperature value and battery voltage value of battery to be charged are detected in real time；
According to the battery temperature value of acquisition and battery voltage value dynamic adjustment charging voltage value and charging current
Value.
Further, described " battery temperature value and battery voltage value that detect battery to be charged in real time " includes：
The temperature value and magnitude of voltage of battery corresponding registers to be charged are obtained by SMBUS/I2C, it is to be charged so as to obtain
The battery temperature value and battery voltage value of battery.
Further, it is described " electric according to the battery temperature value of acquisition and battery voltage value dynamic adjustment charging
Pressure value and charging current value " includes：
According to the different battery temperature values of acquisition, different maximum charging voltage values is set；
Simultaneously according to the battery voltage value of the battery of acquisition, current charging current value is adjusted.
Further, when the battery temperature value is located at different predetermined interval scopes, different highest charging electricity is set
Pressure value；The charging current value realizes maximization in the range of the first battery voltage value, at the first battery voltage value scope
In the middle section of normal battery range of voltage values.
Further, the battery temperature value is located at when being more than 0 DEG C less than 60 DEG C and is used to charge normal to battery, the electricity
When pond temperature value is in the different predetermined interval scopes between being more than 0 DEG C less than 60 DEG C, maximum charging current 1C, wherein C
For the capacity of rechargeable battery.
A kind of intelligent charger provided in an embodiment of the present invention, including：
Detection means, the battery temperature value and battery voltage value of battery to be charged are detected in real time；
Control device, according to the battery temperature value of acquisition and the battery voltage value dynamic control charging voltage value and
Charging current value.
Further, the detection means by SMBUS/I2C obtain battery corresponding registers to be charged temperature value and
Magnitude of voltage, so as to obtain the battery temperature value of battery to be charged and battery voltage value.
Further, the control device, according to the different battery temperature values of acquisition, set different highests and fill
Piezoelectric voltage value；Simultaneously according to the battery voltage value of the battery of acquisition, current charging current value is adjusted.
Further, when the battery temperature value is located at different predetermined interval scopes, different highest charging electricity is set
Pressure value；The charging current value realizes maximization in the range of the first battery voltage value, at the first battery voltage value scope
In the middle section of normal battery range of voltage values.
Further, the battery temperature value is located at when being more than 0 DEG C less than 60 DEG C and is used to charge normal to battery, the electricity
When pond temperature value is located in being more than 0 DEG C of different predetermined interval scope being less than between 60 DEG C, maximum charging current 1C, its
Middle C is the capacity of rechargeable battery.
Compared with prior art, a kind of intelligent charging method and device that the embodiment of the present invention proposes, pass through intelligent charge
The cooperation of device and intelligent battery, communicated by SMBUS/I2C and obtain the real-time voltage of battery-end and temperature data, flexibly set
The constant current value and charging limitation magnitude of voltage of output are put, so as to more optimize under low temperature, high-temperature condition safely and effectively to lithium
Battery charges.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for this
For the those of ordinary skill in field, without having to pay creative labor, it can also be obtained according to these accompanying drawings
His accompanying drawing.
Fig. 1 is the flow chart of charging method described in one embodiment of the invention；
Fig. 2 is charging device structural representation described in one embodiment of the invention.
Embodiment
In order that the object, technical solutions and advantages of the present invention are clearer, the present invention is made below in conjunction with accompanying drawing into
One step it is described in detail, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole implementation
Example.Based on the embodiment in the present invention, what those of ordinary skill in the art were obtained under the premise of creative work is not made
All other embodiment, belongs to the scope of protection of the invention.
The present invention is communicated by SMBUS/I2C by the cooperation of intelligent charger and intelligent battery and obtains battery-end reality
When voltage and temperature data, the flexible constant current value that output is set and charging limitation magnitude of voltage, so as to more optimize low
Safely and effectively to lithium cell charging under temperature, high-temperature condition.
Intelligent battery obtains the voltage and temperature data of battery in real time, and during charging, charging device can pass through SMBUS/I2C
Etc. the voltage temperature data that mode obtains battery corresponding registers, and with reference to the accompanying drawings in a kind of advanced charging algorithm for providing,
At different temperature, different maximum charging voltages is set, while according to the magnitude of voltage of current battery, adjusts current charging electricity
Flow valuve.
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
Embodiment 1
As shown in figure 1, a kind of intelligent charging method provided in an embodiment of the present invention, including：Battery to be charged is detected in real time
Battery temperature value and battery voltage value；According to the battery temperature value of acquisition and battery voltage value dynamic adjustment charging
Magnitude of voltage and charging current value.
Specifically, when underwater electronic product shows that intelligent charger starts to detect intelligent battery, leads to when needing charging
Cross temperature value and magnitude of voltage that SMBUS/I2C obtains battery corresponding registers to be charged, the detection need by it is certain when
Between section, to ensure that detection temperature and voltage constant are accurate, so as to obtain the battery temperature value of battery to be charged and battery voltage value,
And the battery temperature value and battery voltage value storage are arrived to the register of charging device.
Further, intelligent charger is according to the different battery temperature values of the intelligent battery of acquisition, and setting is not
Same maximum charging voltage value；Simultaneously according to the battery voltage value of the battery of acquisition, current charging current value is adjusted.
Wherein, when detecting the battery temperature value less than 0 DEG C or more than 60 DEG C, forbid charging, and show warning letter
Number, because now battery is in the too low or too high unstable state of temperature, then to its charging battery explosion etc. can be caused to endanger
The generation of dangerous situation.
And now, if the battery temperature value of detection is more than or equal to 0 DEG C less than 10 DEG C, highest charging electricity can be set
Press and represent the joint number of the battery for (3.95-4.05) V*N, wherein particularly 4.0V*N, N, N is natural number, and 4.0V represents every
The voltage of one batteries, 4.0V*N represent the total voltage formed after N batteries parallel connections, can be according to actual intelligent battery to be measured
Situation setting maximum charging voltage；After having set maximum charging voltage, while when detecting that the battery voltage value is relatively low,
Such as magnitude of voltage can set charging current as 0.1C when being 3.0-3.5V；When detecting that the battery voltage value is moderate, example
When such as magnitude of voltage being 3.6-4.1V, charging current can be set as 0.2C；When detecting that the battery voltage value is higher, such as
When magnitude of voltage is 4.2-4.4V, charging current can be set as 0.1C.
Further, the battery temperature value be more than or equal to 10 DEG C be less than 45 DEG C when, set maximum charging voltage as
(4.35-4.45) V*N, particularly 4.4V*N；Wherein N represents the joint number of the battery, and N is natural number, and 4.4V represents each section
The voltage of battery, 4.4V*N represent the total voltage formed after N batteries parallel connections, can be according to the shape of actual intelligent battery to be measured
Condition sets maximum charging voltage；After having set maximum charging voltage, while when the battery voltage value is relatively low, such as magnitude of voltage is
During 3.0-3.5V, charging current can be set as 0.5C；When detecting that the battery voltage value is moderate, such as magnitude of voltage is
During 3.6-4.1V, charging current can be set as 0.1C；When detecting that the battery voltage value is higher, such as magnitude of voltage is
During 4.2-4.4V, charging current can be set as 0.3C.
Further, the battery temperature value be more than or equal to 45 DEG C be less than 60 DEG C when, set maximum charging voltage as
(4.15-4.25), particularly 4.2V*N；Wherein N represents the joint number of the battery, and N is natural number, and 4.2V represents each batteries
Voltage, 4.2V*N represents total voltage for being formed after N batteries parallel connections, can be set according to the situation of actual intelligent battery to be measured
Determine maximum charging voltage；After having set maximum charging voltage, while when the battery voltage value is relatively low, such as magnitude of voltage is 3.0-
During 3.5V, charging current can be set as 0.2C；When detecting that the battery voltage value is moderate, such as magnitude of voltage is 3.6-
During 4.1V, charging current can be set as 0.3C；When detecting that the battery voltage value is higher, such as magnitude of voltage is 4.2-
During 4.4V, charging current can be set as 0.1C.
Specific charging current is relevant with battery material and capacity, and (the present embodiment can also be stored by taking lithium battery as an example with plumbic acid
Battery just, exemplified by nickel-cadmium cell, nickel metallic hydrogen calculates), lithium battery has a nominal capacity, is Ch.Such as certain battery
Nominal capacity 1000mAh, then C=1000mA, the electric current that you charge should be just 0.5-0.8C=500-800mA；But if
Nominal capacity is 1800mAh, then C=1800mA, 0.5-0.8C=900mA-1440mA.Capacity of the present invention to the battery
Do not limit, can be conventional any capability value.
It is demonstrated experimentally that above-mentioned number range is the number range of comparative superiority, and when being arranged in above-mentioned number range, energy
The charging effect of enough optimal guarantee batteries, while the service life of battery is kept, and the charging outside above-mentioned number range
Effect will significantly be deteriorated, and therefore, data method of the invention has the advantageous effects of irreplaceability.
Embodiment 2
As shown in Fig. 2 the embodiments of the invention provide a kind of intelligent charger, including：Detection means, in real time detection are treated
The battery temperature value and battery voltage value of rechargeable battery；Control device, according to the battery temperature value of acquisition and the battery
Magnitude of voltage dynamic control charging voltage value and charging current value.
Specifically, the intelligent charger includes transforming circuit, mu balanced circuit, overcharge protection circuit, detection circuit, control
Circuit processed, transforming circuit charging voltage needed for, realizes voltage transformation, to reach the output voltage of described stabilization；
And overcharge protection circuit is used for when pond to be charged is full of, stop charging in time, to ensure the safety of rechargeable battery.And detect electricity
Road, for detecting battery to be charged by SMBUS/I2C, the temperature value and magnitude of voltage of battery corresponding registers to be charged are obtained,
So as to obtain the battery temperature value of battery to be charged and battery voltage value, and the battery temperature value and battery voltage value are fed back
To control circuit, control circuit exports charging voltage and charging current according to actually detected value.
Specifically, the control device, according to the different battery temperature values of acquisition, sets different highest chargings
Magnitude of voltage；Simultaneously according to the battery voltage value of the battery of acquisition, current charging current value is adjusted.
Wherein, when detecting that the battery temperature value is less than 0 DEG C or during more than 60 DEG C, forbid charging, because, now battery
The unstable state too low or too high in temperature, then can cause the generations of the unsafe conditions such as battery explosion to its charging.
And now, if detection the battery temperature value be more than 0 DEG C be less than 10 DEG C, can set maximum charging voltage as
(3.95-4.05) V*N, wherein particularly 4.0V*N, N represent the joint number of the battery, and N is natural number, and 4.0V represents each section
The voltage of battery, 4.0V*N represent the total voltage formed after N batteries parallel connections, can be according to the shape of actual intelligent battery to be measured
Condition sets maximum charging voltage；After having set maximum charging voltage, while when detecting that the battery voltage value is relatively low, such as
When magnitude of voltage is 3.0-3.5V, charging current can be set as 0.1C；When detecting that the battery voltage value is moderate, such as electricity
When pressure value is 3.6-4.1V, charging current can be set as 0.2C；When detecting that the battery voltage value is higher, such as voltage
Be worth for 4.2-4.4V when, charging current can be set as 0.1C.
Further, the battery temperature value be more than or equal to 10 DEG C be less than 45 DEG C when, set maximum charging voltage as
(4.35-4.45) V*N, particularly 4.4V*N；Wherein N represents the joint number of the battery, and N is natural number, and 4.4V represents each section
The voltage of battery, 4.4V*N represent the total voltage formed after N batteries parallel connections, can be according to the shape of actual intelligent battery to be measured
Condition sets maximum charging voltage；After having set maximum charging voltage, while when the battery voltage value is relatively low, such as magnitude of voltage is
During 3.0-3.5V, charging current can be set as 0.5C；When detecting that the battery voltage value is moderate, such as magnitude of voltage is
During 3.6-4.1V, charging current can be set as 0.1C；When detecting that the battery voltage value is higher, such as magnitude of voltage is
During 4.2-4.4V, charging current can be set as 0.3C.
Further, the battery temperature value be more than or equal to 45 DEG C be less than 60 DEG C when, set maximum charging voltage as
(4.15-4.25), particularly 4.2V*N；Wherein N represents the joint number of the battery, and N is natural number, and 4.2V represents each batteries
Voltage, 4.2V*N represents total voltage for being formed after N batteries parallel connections, can be set according to the situation of actual intelligent battery to be measured
Determine maximum charging voltage；After having set maximum charging voltage, while when the battery voltage value is relatively low, such as magnitude of voltage is 3.0-
During 3.5V, charging current can be set as 0.2C；When detecting that the battery voltage value is moderate, such as magnitude of voltage is 3.6-
During 4.1V, charging current can be set as 0.3C；When detecting that the battery voltage value is higher, such as magnitude of voltage is 4.2-
During 4.4V, charging current can be set as 0.1C.
Specific charging current is relevant with battery material and capacity, and (the present embodiment can also be stored by taking lithium battery as an example with plumbic acid
Battery just, exemplified by nickel-cadmium cell, nickel metallic hydrogen calculates), lithium battery has a nominal capacity, is Ch.Such as certain battery
Nominal capacity 1000mAh, then C=1000mA, the electric current that you charge should be just 0.5-0.8C=500-800mA；But if
Nominal capacity is 1800mAh, then C=1800mA, 0.5-0.8C=900mA-1440mA.Capacity of the present invention to the battery
Do not limit, can be conventional any capability value.
It is demonstrated experimentally that above-mentioned number range is the number range of comparative superiority, and when being arranged in above-mentioned number range, energy
The charging effect of enough optimal guarantee batteries, while the service life of battery is kept, and the charging outside above-mentioned number range
Effect will significantly be deteriorated, and therefore, data method of the invention has the advantageous effects of irreplaceability.
Compared with prior art, a kind of intelligent charging method and device that the embodiment of the present invention proposes, pass through intelligent charge
The cooperation of device and intelligent battery, communicated by SMBUS/I2C and obtain the real-time voltage of battery-end and temperature data, flexibly set
The constant current value and charging limitation magnitude of voltage of output are put, so as to more optimize under low temperature, high-temperature condition safely and effectively to lithium
Battery charges.
The said goods can perform the method that the embodiment of the present application is provided, and possesses the corresponding functional module of execution method and has
Beneficial effect.Not ins and outs of detailed description in the present embodiment, reference can be made to the method that the embodiment of the present application is provided.
Device embodiment described above is only schematical, wherein the unit illustrated as separating component can
To be or may not be physically separate, it can be as the part that unit is shown or may not be physics list
Member, you can with positioned at a place, or can also be distributed on multiple NEs.It can be selected according to the actual needs
In some or all of module realize the purpose of this embodiment scheme.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
Realized by the mode of software plus required general hardware platform, naturally it is also possible to pass through hardware.Based on such understanding, on
The part that technical scheme substantially in other words contributes to prior art is stated to embody in the form of software product, should
Computer software product can store in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD, including some fingers
Make to cause a computer equipment (can be personal computer, server, or network equipment etc.) to perform each implementation
Method described in some parts of example or embodiment.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
- A kind of 1. intelligent charging method, it is characterised in that including：The battery temperature value and battery voltage value of battery to be charged are detected in real time；According to the battery temperature value of acquisition and battery voltage value dynamic adjustment charging voltage value and charging current value.
- 2. the method as described in claim 1, it is characterised in that：It is described " detect in real time battery to be charged battery temperature value and Battery voltage value " includes：The temperature value and magnitude of voltage of battery corresponding registers to be charged are obtained by SMBUS/I2C, so as to obtain battery to be charged Battery temperature value and battery voltage value.
- 3. method as claimed in claim 2, it is characterised in that：It is described " according to the battery temperature value of acquisition and the electricity Cell voltage value dynamic adjustment charging voltage value and charging current value " includes：According to the different battery temperature values of acquisition, different maximum charging voltage values is set；Simultaneously according to the battery voltage value of the battery of acquisition, current charging current value is adjusted.
- 4. the method as described in one of claim 1-3, it is characterised in that：The battery temperature value is located at different predetermined intervals During scope, different maximum charging voltage values is set；The charging current value realizes maximum in the range of the first battery voltage value Change, the first battery voltage value scope is in the middle section of normal battery range of voltage values.
- 5. method as claimed in claim 4, it is characterised in that：The battery temperature value, which is located at when being more than 0 DEG C less than 60 DEG C, to be used Charged normal in battery, when the battery temperature value is in the different predetermined interval scopes between being more than 0 DEG C less than 60 DEG C, Maximum charging current is 1C, and wherein C is the capacity of rechargeable battery.
- A kind of 6. intelligent charger, it is characterised in that including：Detection means, the battery temperature value and battery voltage value of battery to be charged are detected in real time；Control device, according to the battery temperature value of acquisition and the battery voltage value dynamic control charging voltage value and charging Current value.
- 7. intelligent charger as claimed in claim 6, it is characterised in that：The detection means is obtained by SMBUS/I2C The temperature value and magnitude of voltage of battery corresponding registers to be charged, so as to obtain the battery temperature value of battery to be charged and cell voltage Value.
- 8. intelligent charger as claimed in claim 6, it is characterised in that：The control device, according to the different of acquisition The battery temperature value, set different maximum charging voltage values；Simultaneously according to the battery voltage value of the battery of acquisition, adjust Whole current charging current value.
- 9. the intelligent charger as described in one of claim 6-8, it is characterised in that：The battery temperature value is positioned at different During predetermined interval scope, different maximum charging voltage values is set；The charging current value is in the range of the first battery voltage value Realize and maximize, the first battery voltage value scope is in the middle section of normal battery range of voltage values.
- 10. intelligent charger as claimed in claim 9, it is characterised in that：The battery temperature value is located at and is less than more than 0 DEG C It is used to charge normal to battery at 60 DEG C, the battery temperature value, which is in, is more than 0 DEG C of different fate being less than between 60 DEG C Between scope when, maximum charging current 1C, wherein C be rechargeable battery capacity.
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Address after: 264200 Zone E, blue venture Valley, No. 40, Yangguang Road, Nanhai new area, Weihai City, Shandong Province Patentee after: Zhendi Technology Co., Ltd Address before: Unit 301, unit a, 9 Fulin Road, Chaoyang District, Beijing 100107 Patentee before: POWERVISION TECH Inc. |