CN109660002A - A kind of charger of Auto-matching battery types - Google Patents
A kind of charger of Auto-matching battery types Download PDFInfo
- Publication number
- CN109660002A CN109660002A CN201910035534.0A CN201910035534A CN109660002A CN 109660002 A CN109660002 A CN 109660002A CN 201910035534 A CN201910035534 A CN 201910035534A CN 109660002 A CN109660002 A CN 109660002A
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- Prior art keywords
- charging
- battery
- rechargeable battery
- voltage
- module
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Links
- 238000001514 detection method Methods 0.000 claims abstract description 73
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 39
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 39
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 12
- 230000005611 electricity Effects 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 24
- 238000011897 real-time detection Methods 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 4
- 229910052987 metal hydride Inorganic materials 0.000 claims description 4
- 239000013589 supplement Substances 0.000 claims description 4
- 230000006641 stabilisation Effects 0.000 claims description 3
- 238000011105 stabilization Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 229910052759 nickel Inorganic materials 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000004397 blinking Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001595 flow curve Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- -1 nickel Hydrogen Chemical class 0.000 description 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00038—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors
- H02J7/00041—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange using passive battery identification means, e.g. resistors or capacitors in response to measured battery parameters, e.g. voltage, current or temperature profile
-
- 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
- H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
-
- 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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- 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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
- H02J7/0049—Detection of fully charged condition
Abstract
The present invention provides a kind of charger of Auto-matching battery types, including MCU control module and voltage stabilizing circuit module connected to it, the first charging module, the second charging module, battery detection module and LED display module.By controlling, first charging module is unified to carry out first time charging to battery to the present invention, the voltage of the rechargeable battery is detected after the first preset time period, the MCU control module judges the type of battery according to the variation of cell voltage, if voltage is greater than third predeterminated voltage, then judgement is lithium battery and is full of, and stops charging；If voltage is less than third predeterminated voltage, then judgement is ni-mh, nickel-cadmium cell, and second is carried out to ni-mh, nickel-cadmium cell by the second charging module and is charged, the present invention can be under the premise of not injuring battery, automatic distinguishing battery types, and be full of battery using corresponding charge mode, high degree of automation, error rate are low, have significantly saved manpower and material resources.
Description
Technical field
The present invention relates to battery charger technical field more particularly to a kind of chargers of Auto-matching battery types.
Background technique
Battery charger (battery charger) is also referred to as cell-charging seat.It is electric vehicle, electric tool, electronic game, notes
Originally, the charging electrical equipment of rechargeable battery used in digital and small portable electronic device and electronic apparatus, generally by outer
The compositions such as shell, power supply conversion portion, charging detection part, charge protection part.Charger is divided into pure according to output current type
Direct current and pulsating direct current are divided into Direct Plug-In and Table top type by connection type, are divided into nickel-cadmium cell by the type of charged battery and fill
Electric appliance, nickel-metal hydride battery charger, nickel-zinc cell charger, lead-acid battery charger and lithium battery charger etc., by charger
Function is divided into dedicated charger and universal charger.
When charger charges the battery, type according to the type of rechargeable battery and voltage to charger, protection are first had to
Type, output voltage and current specification are selected accordingly, are chosen further according to urban network electricity pressure and are met corresponding input condition
Charger.For the charging problems of a variety of chemical cell equipment, user is needed to have stronger consciousness that can identify battery, to select
Different charging methods.Otherwise, if in electrical equipment charging process, the charging modes mistake of user's selection is easy for making
It is damaged at electrical equipment, causes battery catches fire, explosion.
Battery uses field, for example intercom, satellite phone, these communication apparatus are to meet the needs of different, usually
It will use two or more batteries, as reserve battery, if it is lithium battery, single-unit voltage is 3.6V, if with ni-mh or nickel
Every battery, single-unit voltage only has 1.2V, and equipment electricity consumption is possible to reach phase with 2 section lithium batteries or 6 section ni-mhs or nickel-cadmium cell
Same using effect, the charging of different joint numbers will follow 1 section lithium battery to match three section ni-mhs or nickel-cadmium cell.And it is existing
Charger cannot directly judge the battery types for needing to charge, and select which kind of method for charging batteries.
Summary of the invention
The present invention provides a kind of charger of Auto-matching battery types, and solving prior art charging equipment can not be actively
The technical issues of identifying battery types, the charging of multiple types battery can not be compatible with.
In order to solve the above technical problems, the present invention provides a kind of charger of Auto-matching battery types, including MCU control
Module and voltage stabilizing circuit module connected to it, the first charging module, the second charging module, battery detection module and LED are aobvious
Show that module, the battery detection module are also connected with first charging module, the second charging module；The voltage stabilizing circuit module,
First charging module, the second charging module also access charge power supply.
It is that the MCU controls mould that the voltage stabilizing circuit module, which is used to convert the charge power supply to stable chip power,
Block power supply；
The battery detection module is used to detect the access of rechargeable battery and the temperature of the detection rechargeable battery；
The MCU control module is used to determine the battery detection module access rechargeable battery and the rechargeable battery
Temperature when meeting preset temperature range, control first charging module with the first charge mode is by the charge power supply
The rechargeable battery carries out first time charging；
The MCU control module is also used to obtain the temperature of the rechargeable battery in real time in the first time charging process
Degree controls described the when the temperature for determining the rechargeable battery is unsatisfactory for the preset temperature range more than preset times
One charging module stops the charging to the rechargeable battery, and the control LED display module shows charge fault signal；
The MCU control module is also used to reach with the first detection pattern in the voltage stabilization for determining the rechargeable battery
When completing the first time charging when the first predeterminated voltage, the electricity of the rechargeable battery is detected after the first preset time period of waiting
Pressure, and the voltage of the rechargeable battery at this time is compared with the second predeterminated voltage and is obtained in the rechargeable battery comprising two poles
It manages or without after diode, the voltage of the rechargeable battery is detected with the second detection pattern；
Show that the rechargeable battery is the first kind if the voltage of the rechargeable battery at this time is less than third predeterminated voltage
Battery, controlling second charging module at this time with the first boost charge mode is that rechargeable battery charging is filled for the second time
Electricity；
If it includes two in the third predeterminated voltage and the rechargeable battery that the voltage of the rechargeable battery, which is not less than, at this time
Pole pipe then shows that the rechargeable battery is Second Type battery, and control at this time controls second charging module with the second supplement
Charge mode is that rechargeable battery charging carries out second of charging；
If the voltage of the rechargeable battery is not less than in the third predeterminated voltage and the rechargeable battery and does not include at this time
Diode then shows that the rechargeable battery is third type cell, controls the LED display module display charging at this time and completely believes
Number and cut off the electric connection of second charging module, the first charge mode and the rechargeable battery；
The MCU control module is also used to obtain the temperature of the rechargeable battery in real time in second of charging process
Degree disconnects described the when the temperature for determining the rechargeable battery is unsatisfactory for the preset temperature range more than preset times
The electric connection of two charging modules and the rechargeable battery, and the control LED display module show charge fault signal；
The MCU control module is also used to control the LED display module and charges or described second in the first time
Charging signals are shown in charging process；It is also used to show that charging has completely been believed after completing the first time charging and charging for second
Number.
The first kind battery is nickel-metal hydride battery or nickel-cadmium cell；The Second Type battery is the lithium comprising diode
Battery；The third type is the lithium battery not comprising diode.
The preset temperature range is 0~45 DEG C, and thermistor, the MCU control are equipped in the battery detection module
Module determines the temperature of the rechargeable battery by detecting the partial pressure value of the thermistor；The MCU control module is judging
When being unsatisfactory for the preset temperature range to the temperature of the rechargeable battery and be less than preset times, in the temperature of the rechargeable battery
When degree is unsatisfactory for the preset temperature range, suspends and charge for the rechargeable battery, but in the temperature of the rechargeable battery
It is cooled to when meeting the preset temperature range, continues as the rechargeable battery charging.
The MCU control module is also used to before accessing the rechargeable battery and completes the first time charging and second
In secondary charging process, whether charge power supply described in real-time detection is within the scope of 9~16V, if otherwise resetting itself.
The MCU control module is also used to be before the rechargeable battery charges, to fill described in detection with the first charge mode
The voltage of battery, if the voltage of the rechargeable battery is higher than 8.6V at this time, then it represents that the rechargeable battery has been filled, then is cut
Break first charging module, the second charging module and the battery detection module electrical communication and control the LED and show
Signal has been expired in module display charging, if the voltage of the rechargeable battery is less than 1.0V at this time, shows charge fault signal.
First charge mode is that the voltage of the rechargeable battery is first charged to the described first default electricity with the first constant current
The first predetermined current threshold is dropped to the electric current of the first predeterminated voltage constant-voltage charge to the rechargeable battery again after pressure, i.e.,
Complete the first time charging；First constant current is 1A, and the first predeterminated voltage is 8.4V, and first predetermined current threshold is
150mA。
Second predeterminated voltage is 5V；The third predeterminated voltage is institute 8.32V；First detection pattern is detection
The virtual voltage of the cell voltage, MCU control module described in second detection pattern are in the first detection pattern base
The equivalent voltage of cell voltage after applying the electric current of a 10mA on from plinth to the battery detection module.
The first boost charge mode is, second charging module apply one slowly rise pwm signal, described the
For one charging module to stop the second preset time period of charging after constant current 1A one set period of time of charging, described second in stopping is pre-
If in the period, the MCU control module applies the electric current of a 10mA to the battery detection module, then stopping charging
Afterwards, it waits less than the voltage for detecting the rechargeable battery after the third preset time period after second preset time period, if institute
Voltage is stated not less than the voltage difference measured twice before 9.0V or rear no more than a predeterminated voltage difference, then is completed described second
Charging, aforementioned operation that is on the contrary then repeating the second boost charge mode；
The preset times are set as 3 times, and first preset time period is set as 10 seconds, the set period of time setting
It is 5 seconds, second preset time period is set as 200 milliseconds, and the third preset time period is set as 150 milliseconds, described pre-
If voltage difference is set as 18mV.
The second boost charge mode is, second charging module applies a pwm signal slowly risen, described the
One charging module is with constant pressure 8.6V, for rechargeable battery charging until electric current is down to 100mA, completes described second and charges.
A kind of charger of Auto-matching battery types provided by the invention is provided with the charging mould of MCU control module first
Block, the second charging module, battery detection module, MCU control module are first unified by the first charging module of setting to charging electricity
Pond carries out first time charging, and the voltage of rechargeable battery in battery detection module is directly detected after the first preset time period, according to
The variation of cell voltage judges the type of battery, if voltage is greater than the second predeterminated voltage (voltage is not substantially reduced), judges
Rechargeable battery includes diode or does not include diode, and then MCU control module is to weight after battery detection module one electric current of application
New detection cell voltage, if voltage is less than third predeterminated voltage at this time, judgement is ni-mh, nickel-cadmium cell, and is filled by first
Electric module, the second charging module carry out second to ni-mh, nickel-cadmium cell and charge, if voltage is not less than the third predeterminated voltage
And include diode in the rechargeable battery, then judgement is the lithium battery comprising diode, then passes through the first charging module, second
Charging module carries out second to the lithium battery comprising diode and charges, if voltage is not less than the third predeterminated voltage and described
Diode is not included in rechargeable battery, then judgement is the lithium battery not comprising diode, and the battery is already filled at this time, then not
It needs to recharge.The present invention can be under the premise of not injuring battery, automatic distinguishing battery types, and using corresponding charging mould
Battery is full of by formula, and high degree of automation, error rate are low, have significantly saved manpower and material resources；
A kind of charger of Auto-matching battery types provided by the invention is provided with temperature-sensitive electricity in battery detection module
The temperature for hindering the rechargeable battery before carrying out real-time detection charging, when charging, when finding that battery temperature exceeds preset secure threshold,
Stop charging immediately, protect battery and guarantees the safety of entire circuit；
A kind of charger of Auto-matching battery types provided by the invention, is also provided with LED display module, passes through LED
The light of different colours is shown to represent the charged state of rechargeable battery, prompt and warning can be played the role of.
Detailed description of the invention
Fig. 1 is a kind of circuit frame figure of the charger of Auto-matching battery types provided in an embodiment of the present invention；
Fig. 2 is to stop the voltage change charging song after lithium battery provided in an embodiment of the present invention is charged to the first predeterminated voltage
Line chart；
Fig. 3 is that ni-mh provided in an embodiment of the present invention, nickel-cadmium cell are charged to the electricity for stopping charging after the first predeterminated voltage
Press change curve；
Fig. 4 is the complete charge graph of lithium battery provided in an embodiment of the present invention；
Fig. 5 is the complete charging voltage change curve of the lithium battery provided in an embodiment of the present invention with diode；
Fig. 6 is the complete charge graph of ni-mh provided in an embodiment of the present invention, nickel-cadmium cell；
Fig. 7 is the circuit diagram of MCU control module 1 in Fig. 1 provided in an embodiment of the present invention；
Fig. 8 is the circuit diagram of voltage stabilizing circuit module 2 in Fig. 1 provided in an embodiment of the present invention；
Fig. 9 is the circuit diagram of the first charging module 3 in Fig. 1 provided in an embodiment of the present invention；
Figure 10 is the circuit diagram of the second charging module 4 in Fig. 1 provided in an embodiment of the present invention；
Figure 11 is the circuit diagram of 5 temperature detection part of battery detection module in Fig. 1 provided in an embodiment of the present invention；
Figure 12 is the circuit diagram of 5 battery of battery detection module access detection in Fig. 1 provided in an embodiment of the present invention；
Figure 13 is the circuit diagram of LED display module 6 in Fig. 1 provided in an embodiment of the present invention；
Wherein: MCU control module 1, voltage stabilizing circuit module 2, the first charging module 3, the second charging module 4, battery detecting
Module 5, LED display module 6.
Specific embodiment
Embodiments of the present invention are specifically illustrated with reference to the accompanying drawing, embodiment is only given for illustrative purposes,
It can not be interpreted as limitation of the invention, including attached drawing is only for reference and illustrates use, not constitute and the invention patent is protected
The limitation of range, because on the basis of not departing from spirit and scope of the invention many changes can be carried out to the present invention.
Because lithium battery single-unit voltage is 3.6V, ni-mh or nickel separation cell single-unit voltage are 1.2V, and equipment electricity consumption just has can
Identical using effect can be reached with 2 section lithium batteries or 6 section ni-mhs, nickel-cadmium cell, the present embodiment is exactly according to 2 section lithium batteries etc.
Battery is distinguished in the case where 6 section ni-mhs, nickel-cadmium cell.
A kind of charger of Auto-matching battery types provided in an embodiment of the present invention controls mould referring to Fig. 1, including MCU
Block 1 and voltage stabilizing circuit module connected to it 2, the first charging module 3, the second charging module 4, battery detection module 5 and LED
Display module 6, the battery detection module 5 are also connected with first charging module 3, the second charging module 4；The voltage regulator circuit
Module 2, the first charging module 3, the second charging module 4 also access charge power supply.
The main realization process of the embodiment of the present invention is: first unified by the first charging module of setting to rechargeable battery into
Row charges for the first time, the voltage of rechargeable battery in battery detection module is directly detected after the first preset time period, according to battery
The variation of voltage judges the type of battery, if voltage is greater than the second predeterminated voltage (voltage is not substantially reduced), judges to charge
Battery includes diode or does not include diode, and then MCU control module is examined again after applying an electric current to battery detection module
Cell voltage is surveyed, if voltage is less than third predeterminated voltage at this time, judgement is ni-mh, nickel-cadmium cell, and passes through the first charging mould
Block, the second charging module carry out second to ni-mh, nickel-cadmium cell and charge, if voltage is not less than the third predeterminated voltage and institute
It states comprising diode in rechargeable battery, then judgement is the lithium battery comprising diode, then passes through the first charging module, the second charging
Module carries out second to the lithium battery comprising diode and charges, if voltage is not less than the third predeterminated voltage and the charging
Diode is not included in battery, then judgement is the lithium battery not comprising diode, and the battery is already filled at this time, then is not needed
It recharges.
Referring to Fig. 8, the voltage stabilizing circuit module 2 is connected to the MCU by the port VCC5V1 drawn in figure and controls mould
The plant-grid connection port VDD of block 1, the voltage stabilizing circuit module 2 convert stable chip power for the charge power supply as institute
State the power supply of MCU control module 1；
The battery detection module 5 is used to detect the access of rechargeable battery and the temperature of the detection rechargeable battery；Ginseng
See Figure 12, the MCU control module 1 is connected to the battery detection module 5 by pin PA4, can be according to battery incoming end
The voltage of BAT+1 determines whether battery access, for example, being judged as no electricity when the voltage of the battery incoming end BAT+1 is 5V
Pond access, when the voltage of the battery incoming end BAT+1 is 0V, being judged as has battery access；It is patrolled by TP200 multi way temperature
The thermistor examined in instrument carries out complete monitoring to the temperature of rechargeable battery.
Referring to Fig. 7, the MCU control module 1 accesses rechargeable battery and described fills determining the battery detection module 5
When the temperature of battery meets preset temperature range, first charging module 3 is controlled with the first charge mode and is filled by described
Power supply is that the rechargeable battery carries out first time charging；
Referring to Fig. 9, the MCU control module 1 is connected to the NTC_OFF1 of first charging module 3 by pin PC1
Port, the MCU control module 1 also obtain the temperature of the rechargeable battery in real time in the first time charging process, are sentencing
When the temperature broken to the rechargeable battery is unsatisfactory for the preset temperature range more than preset times, the first charging mould is controlled
Block 3 stops the charging to the rechargeable battery, and the control LED display module 6 shows charge fault signal；
The MCU control module 1 also reaches in the voltage stabilization for determining the rechargeable battery with the first detection pattern
When completing the first time charging when one predeterminated voltage, the electricity of the rechargeable battery is detected after the first preset time period of waiting
Pressure, and the voltage of the rechargeable battery at this time is compared with the second predeterminated voltage and is obtained in the rechargeable battery comprising two poles
It manages or without after diode, the voltage of the rechargeable battery is detected with the second detection pattern；
Referring to Figure 10, the MCU control module 1 is connected to the end TP203 of second charging module 4 by pin PA7
Mouthful, show that the rechargeable battery is first kind battery if the voltage of the rechargeable battery at this time is less than third predeterminated voltage,
Controlling second charging module 4 at this time with the first boost charge mode is that rechargeable battery charging carries out second of charging；
If it includes two in the third predeterminated voltage and the rechargeable battery that the voltage of the rechargeable battery, which is not less than, at this time
Pole pipe then shows that the rechargeable battery is Second Type battery, and control at this time controls first charging module 3 with the second supplement
Charge mode is that rechargeable battery charging carries out second of charging；
If the voltage of the rechargeable battery is not less than in the third predeterminated voltage and the rechargeable battery and does not include at this time
Diode then shows that the rechargeable battery is third type cell, and controlling the display of LED display module 6 charging at this time has expired
Signal and the electric connection for cutting off second charging module 4, the first charging module 3 and the rechargeable battery；
The MCU control module 1 is also used to obtain the temperature of the rechargeable battery in real time in second of charging process
Degree disconnects described the when the temperature for determining the rechargeable battery is unsatisfactory for the preset temperature range more than preset times
The electric connection of two charging modules 4 and the rechargeable battery, and the control LED display module 6 show charge fault signal；
Referring to Figure 13, the MCU control module 1 is also connected respectively to the LED by pin PA1 and pin PA3 and shows
The port LED G1 and the port LED R1 of module 6, the MCU control module 1 are also used to control the LED display module 6 in institute
It states in charging or second of charging process for the first time and shows charging signals；It is also used to complete first time charging and the
Show that signal has been expired in charging after recharging；It shows that red light indicates that charging is broken down, and shows that orange lamp expression charges normal, shows
Show that green light indicates battery charging complete.
The first kind battery is nickel-metal hydride battery or nickel-cadmium cell；The Second Type battery is the lithium comprising diode
Battery；The third type is the lithium battery not comprising diode.
The preset temperature range is 0~45 DEG C (temperature range for being also possible to normal battery operation), referring to Figure 11, institute
State the port BAT+1 that MCU control module 1 is connected to the battery detection module 5 by pin PB0, the battery detection module 5
In be equipped with thermistor, the MCU control module 1 determines the rechargeable battery by the partial pressure value of the detection thermistor
Temperature；The MCU control module 1 the temperature for determining the rechargeable battery be unsatisfactory for the preset temperature range be less than it is pre-
If when number, when the temperature of the rechargeable battery is unsatisfactory for the preset temperature range, suspending as rechargeable battery progress
Charging, but when the temperature of the rechargeable battery is cooled to and meets the preset temperature range, it continues as the rechargeable battery and fills
Electricity.
The MCU control module 1 is also used to before accessing the rechargeable battery and completes the first time charging and the
During recharging, whether charge power supply described in real-time detection is within the scope of 9~16V, if otherwise resetting itself.
The MCU control module 1 is also used to be before the rechargeable battery charges, to fill described in detection with the first charge mode
The voltage of battery, if the voltage of the rechargeable battery is higher than 8.6V at this time, then it represents that the rechargeable battery has been filled, then is cut
Break first charging module 3, the second charging module 4 and the battery detection module 5 electrical communication and to control the LED aobvious
Show that signal has been expired in the display charging of module 6, if the voltage of the rechargeable battery is less than 1.0V at this time, the LED display module 6 is shown
Show charge fault signal.
First charge mode is that the voltage of the rechargeable battery is first charged to the described first default electricity with the first constant current
The first predetermined current threshold is dropped to the electric current of the first predeterminated voltage constant-voltage charge to the rechargeable battery again after pressure, i.e.,
Complete the first time charging；First constant current is 1A, and the first predeterminated voltage is 8.4V, and first predetermined current threshold is
150mA。
Second predeterminated voltage is 5V；The third predeterminated voltage is institute 8.32V；First detection pattern is detection
The virtual voltage of the cell voltage, MCU control module 1 described in second detection pattern are in the first detection pattern base
The equivalent voltage of cell voltage after applying the electric current of a 10mA on from plinth to the battery detection module.
The first boost charge mode is, second charging module 4 applies a pwm signal, described slowly risen
First charging module 3 is charged with constant current 1A stops the second preset time period of charging after a set period of time, described the of stopping
In two preset time periods, the MCU control module 1 applies the electric current of a 10mA to the battery detection module, is then stopping
After charging, wait less than the voltage for detecting the rechargeable battery after the third preset time period after second preset time period,
If the voltage not less than the voltage difference measured twice before 9.0V or rear no more than a predeterminated voltage difference, complete described the
Recharging, aforementioned operation that is on the contrary then repeating the second boost charge mode；
The preset times are set as 3 times, and first preset time period is set as 10 seconds, the set period of time setting
It is 5 seconds, second preset time period is set as 200 milliseconds, and the third preset time period is set as 150 milliseconds, described pre-
If voltage difference is set as 18mV.
The second boost charge mode is that second charging module 4 applies a pwm signal slowly risen, described
First charging module 3 is with constant pressure 8.6V, and for rechargeable battery charging until electric current is down to 100mA, completion is described to fill for the second time
Electricity.
The maximum charge time of the lithium battery is 6 hours, if battery exceeds the maximum charge time, the MCU controls mould
Block 1 actively cuts off charge power supply, stops charging.
Referring to fig. 2, abscissa is the time, and unit is the second (s), and ordinate is voltage value, and unit is volt (V), the lithium
Battery is when charging after voltage reaches 8.4V, electric current is down to 150mA first time, in 10 seconds for disconnecting charge power supply, battery
Voltage is rapidly decreased to 8.4V before this, is then slowly decreased 8.38V, and the fall of cell voltage is simultaneously little.
Referring to Fig. 3, abscissa is the time, and unit is the second (s), and ordinate is voltage value, and unit is volt (V), the nickel
Hydrogen, nickel-cadmium cell are when charging after voltage reaches 8.4V, electric current is down to 150mA first time, because there is the phenomenon that floating pressure,
In 10 seconds for disconnecting charge power supply, cell voltage is rapidly decreased to 8.1V hereinafter, and then also continuing reducing 8V hereinafter, battery is electric
Pressure declines by a big margin.
The complete charge graph of the lithium battery, referring to fig. 4, abscissa are the time, and unit is the second (s), and ordinate is
Voltage value, unit are volt (V), and V is rechargeable battery virtual voltage, and I is rechargeable battery actual current, VTFor pre-charge voltage, IT
For pre-charge current, VnFor the first predeterminated voltage, InFor the first constant current.After lithium battery precharge, the first constant current 1A is carried out
The charge mode of constant current the lithium battery voltage is charged to the first predeterminated voltage 8.4V, switch to the charging mould of constant pressure 8.4V at this time
Formula indicates that the electric quantity of lithium battery has filled when the lithium battery flow curve is slowly declined to terminate charging current 100mA
It is full, terminate charging.
The complete charging voltage change curve of lithium battery with diode, referring to Fig. 5, abscissa is the time, and unit is the second
(s), ordinate is voltage value, and unit is volt (V), VaFor lithium battery boost charge voltage, voltage value 8.6V.When two pole of band
When the lithium battery of pipe terminates to charge for the first time, if cell voltage is greater than third predeterminated voltage 8.32V, it is less than 8.6V, then gives band two
Second of charging of one 8.6V constant pressure of lithium battery of pole pipe, until electric current is slowly drop down to 100mA, second of charging of end.
The complete charge graph of the ni-mh, nickel-cadmium cell, referring to Fig. 6, abscissa is the time, and unit is the second (s), is indulged
Coordinate is voltage value, and unit is volt (V), the ni-mh, nickel-cadmium cell charging process in whole process filled with the electric current of constant current 1A
Power mode charges the battery, and charging curve slowly rises, when cell voltage is greater than 9V or cell voltage changing value-△
When V is less than 18mV, indicates that battery capacity has been filled with, terminate charging.
The specific course of work is described below:
S1, it starts power up, it is described that the charge power supply is converted stable chip power by the voltage stabilizing circuit module 2
MCU control module 1 (embodiment of the present invention is powered using 5V) power supply.
Whether S2, MCU control module detection charging circuit meet charge condition:
First, whether in the normal range to detect the external voltage for accessing power supply, always cycle detection input voltage, until
When input voltage reaches in normal range (NR) (9V, 15V), into next step；
Second, it controls the battery detection module 5 and detects the presence of battery insertion, whether cycle detection battery is inserted into always,
When having battery insertion, into next step, the voltage that circuit detects when no battery is inserted into is 5V；
Third controls the battery detection module 5 and (is mainly provided with TP200 multipath temperature patrol inspection instrument, internal includes temperature-sensitive
Resistance) detection rechargeable battery temperature whether in the normal range, if the MCU control module 1 is controlled not in temperature range
It makes the LED display module 6 and controls blinking red lamp alarm, and cycle detection is in normal model until charging-cell temperature always
It encloses, into next step, the battery temperature range is (0 DEG C, 45 DEG C).This temperature detection step runs through in entire charging flow,
If system circulation 3 times exceed temperature range, the LED display module 6 controls blinking red lamp alarm, staff is reminded to remove
Battery.
S3, the MCU control module 1 control first charging module 3 (being mainly provided with charging management chip IC200),
Type of rechargeable battery is not first distinguished, carries out first time charging directly to rechargeable battery, it is bright that the LED display module 6 controls orange lamp
It rises, display charges normal.
S4, charging terminates for the first time, and in the first preset time period 10 seconds, the MCU control module 1 detects the charging
The voltage of battery, and according to the judgement of the voltage of rechargeable battery progress battery types, still bright orange lamp during this.
If A, detecting that the voltage of the rechargeable battery is less than second predeterminated voltage is 5V, then illustrate this charging electricity
Contain diode inside pond, it is desirable to provide the test electric current that a current value is 10mA carries out voltage detecting to rechargeable battery；
B, show that the rechargeable battery is the if the voltage of the rechargeable battery at this time is less than third predeterminated voltage 8.32V
One type battery nickel hydrogen battery or nickel-cadmium cell, enter process S5；
If C, the voltage of the rechargeable battery is not less than in the third predeterminated voltage 8.32V and the rechargeable battery at this time
Comprising diode, then shows that the rechargeable battery is the lithium battery that Second Type battery includes diode, enter process S6；
If D, the voltage of the rechargeable battery is not less than in the third predeterminated voltage 8.32V and the rechargeable battery at this time
Not comprising diode, then shows that the rechargeable battery is the lithium battery that third type cell does not include diode, enter process
S7。
S5, the MCU control module 1 control second charging module 4 (being mainly provided with power management chip AO4435)
It is that rechargeable battery charging carries out second of charging, second of charging process with the first boost charge mode of constant current 1A
To charge at set period of time 5 seconds, stop charging, the MCU control of stopping when in 200 milliseconds of the second preset time period
Module 1 exports the electric current of a 10mA, and tests cell voltage, Zhi Dao electricity after delaying 150 milliseconds of third preset time period
Cell voltage difference is more than or equal to 9V lower than 18mV or cell voltage, enters process S7.
S6, the control of the MCU control module 1 control first charging module 3 with the second boost charge of constant pressure 8.6V
Mode is that rechargeable battery charging carries out second and charges, and until electric current drops to 100mA, enters process S7.
S7, battery turn to be full of, and the LED display module 6 controls green light and lights, and show charging complete, remove battery.
A kind of charger of Auto-matching battery types provided in an embodiment of the present invention is provided with MCU control module first
Charging module, the second charging module, battery detection module, MCU control module pass through first unified pair of the first charging module of setting
Rechargeable battery carries out first time charging, and the electricity of rechargeable battery in battery detection module is directly detected after the first preset time period
Pressure, the type of battery is judged according to the variation of cell voltage, if voltage is greater than the second predeterminated voltage (voltage is not substantially reduced),
Then judge that rechargeable battery includes diode or do not include diode, then MCU control module applies an electricity to battery detection module
Again cell voltage is detected after stream, if voltage is less than third predeterminated voltage at this time, judgement is ni-mh, nickel-cadmium cell, and is passed through
First charging module, the second charging module carry out second to ni-mh, nickel-cadmium cell and charge, if voltage is pre- not less than the third
If in voltage and the rechargeable battery including diode, then judgement is the lithium battery comprising diode, then passes through the first charging mould
Block, the second charging module carry out second to the lithium battery comprising diode and charge, if voltage is not less than the default electricity of the third
Do not include diode in pressure and the rechargeable battery, then judgement is the lithium battery not comprising diode, at this time the battery by
It is full of, does not then need to recharge.The present invention can be under the premise of not injuring battery, automatic distinguishing battery types, and uses phase
Battery is full of by the charge mode answered, and high degree of automation, error rate are low, have significantly saved manpower and material resources；
A kind of charger of Auto-matching battery types provided in an embodiment of the present invention is provided in battery detection module
Thermistor come real-time detection charging before, charging when rechargeable battery temperature, discovery battery temperature exceed preset safety
When threshold value, stop charging immediately, protect battery and guarantees the safety of entire circuit；
A kind of charger of Auto-matching battery types provided in an embodiment of the present invention, is also provided with LED display module, leads to
It crosses LED and shows the light of different colours to represent the charged state of rechargeable battery, prompt and warning can be played the role of.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of charger of Auto-matching battery types, which is characterized in that including MCU control module and pressure stabilizing connected to it
Circuit module, the first charging module, the second charging module, battery detection module and LED display module, the battery detecting mould
Block is also connected with first charging module, the second charging module；The voltage stabilizing circuit module, the first charging module, the second charging
Module also accesses charge power supply.
2. a kind of charger of Auto-matching battery types as described in claim 1, it is characterised in that: the voltage regulator circuit mould
Block is used to convert the charge power supply to stable chip power as MCU control module power supply；
The battery detection module is used to detect the access of rechargeable battery and the temperature of the detection rechargeable battery；
The MCU control module is used in the temperature for determining the battery detection module access rechargeable battery and the rechargeable battery
When degree meets preset temperature range, it is described for controlling first charging module by the charge power supply with the first charge mode
Rechargeable battery carries out first time charging；
The MCU control module is also used to obtain the temperature of the rechargeable battery in real time in the first time charging process,
When determining the temperature of the rechargeable battery and being unsatisfactory for the preset temperature range more than preset times, first charging is controlled
Module stops the charging to the rechargeable battery, and the control LED display module shows charge fault signal；
The MCU control module is also used to reach first in the voltage stabilization for determining the rechargeable battery with the first detection pattern
When completing the first time charging when predeterminated voltage, the voltage of the rechargeable battery is detected after the first preset time period of waiting,
And the voltage of the rechargeable battery at this time is compared with the second predeterminated voltage and is obtained in the rechargeable battery comprising diode
Or without after diode, the voltage of the rechargeable battery is detected with the second detection pattern；
Show that the rechargeable battery is first kind battery if the voltage of the rechargeable battery at this time is less than third predeterminated voltage,
Controlling first charging module, the second charging module at this time with the first boost charge mode is that rechargeable battery charging carries out
Second of charging；
If it includes diode in the third predeterminated voltage and the rechargeable battery that the voltage of the rechargeable battery, which is not less than, at this time,
Then show that the rechargeable battery is Second Type battery, control at this time control first charging module, the second charging module with
Second boost charge mode is that rechargeable battery charging carries out second of charging；
If the voltage of the rechargeable battery, which is not less than in the third predeterminated voltage and the rechargeable battery, at this time does not include two poles
Pipe then shows that the rechargeable battery is third type cell, and controlling the LED display module display charging at this time has expired signal simultaneously
Cut off first charging module, the electric connection with the rechargeable battery；
The MCU control module is also used to obtain the temperature of the rechargeable battery in real time in second of charging process,
When determining the temperature of the rechargeable battery and being unsatisfactory for the preset temperature range more than preset times, second charging is disconnected
The electric connection of module and the rechargeable battery, and the control LED display module show charge fault signal；
The MCU control module is also used to control that the LED display module charges in the first time or described second charges
Charging signals are shown in the process；It is also used to show that signal has been expired in charging after completing the first time charging and charging for second.
3. a kind of charger of Auto-matching battery types as claimed in claim 2, it is characterised in that:
The first kind battery is nickel-metal hydride battery or nickel-cadmium cell；The Second Type battery is the lithium electricity comprising diode
Pond；The third type is the lithium battery not comprising diode.
4. a kind of charger of Auto-matching battery types as described in claim 1, it is characterised in that: the preset temperature model
Enclosing is 0~45 DEG C, thermistor is equipped in the battery detection module, the MCU control module is by detecting the temperature-sensitive electricity
The partial pressure value of resistance determines the temperature of the rechargeable battery；The MCU control module is determining the temperature of the rechargeable battery not
When meeting the preset temperature range and being less than preset times, the preset temperature model is unsatisfactory in the temperature of the rechargeable battery
When enclosing, suspend and charge for the rechargeable battery, but is cooled in the temperature of the rechargeable battery and meets the preset temperature
When range, the rechargeable battery charging is continued as.
5. a kind of charger of Auto-matching battery types as claimed in claim 3, it is characterised in that: the MCU controls mould
Block is also used to before accessing the rechargeable battery and is completed in the first time charging and second of charging process, real-time detection
Whether the charge power supply is within the scope of 9~16V, if otherwise resetting itself.
6. a kind of charger of Auto-matching battery types as claimed in claim 5, it is characterised in that: the MCU controls mould
Block is also used to be before the rechargeable battery charges, the voltage of the rechargeable battery to be detected, if institute at this time with the first charge mode
The voltage for stating rechargeable battery is higher than 8.6V, then it represents that the rechargeable battery has been filled, then cuts off first charging module, the
The electrical communication of two charging modules and the battery detection module simultaneously controls the LED display module display charging and has expired signal,
If the voltage of the rechargeable battery is less than 1.0V at this time, charge fault signal is shown.
7. a kind of charger of Auto-matching battery types as claimed in claim 6, it is characterised in that: the first charging mould
Formula is that first the voltage of the rechargeable battery is charged to after first predeterminated voltage again with the described first default electricity with the first constant current
The electric current of pressure constant-voltage charge to the rechargeable battery drops to the first predetermined current threshold, that is, completes the first time charging；Institute
Stating the first constant current is 1A, and first predeterminated voltage is 8.4V, and first predetermined current threshold is 150mA.
8. a kind of charger of Auto-matching battery types as claimed in claim 7, it is characterised in that: the described second default electricity
Pressure is 5V；The third predeterminated voltage is 8.32V；First detection pattern is to detect the equivalent voltage of the cell voltage,
Second detection pattern is that the MCU control module is applied on the basis of first detection pattern to the battery detection module
The virtual voltage of cell voltage after adding the electric current of a 10mA.
9. a kind of charger of Auto-matching battery types as claimed in claim 8, it is characterised in that: described first fills
Power mode is that second charging module is applied pwm signal, first charging module that one slowly rises and charged with constant current 1A
Stop the second preset time period of charging after one set period of time, in second preset time period of stopping, the MCU control
Module applies the electric current of a 10mA to the battery detection module, then after stopping charging, wait that be less than described second default
The voltage of the rechargeable battery is detected after third preset time period after period, if the voltage is not less than 9.0V or rear preceding two
On the contrary the secondary voltage difference measured is not more than a predeterminated voltage difference, then completes described second and charge, then repeat second and supplement
The aforementioned operation of charge mode；
The preset times are set as 3 times, and first preset time period is set as 10 seconds, and the set period of time is set as 5
Second, second preset time period is set as 200 milliseconds, and the third preset time period is set as 150 milliseconds, the default electricity
Pressure difference is set as 18mV.
10. a kind of charger of Auto-matching battery types as claimed in claim 9, it is characterised in that: second supplement
Charge mode is that second charging module applies a pwm signal slowly risen, and first charging module is with constant pressure
8.6V completes described second and charges for rechargeable battery charging until electric current is down to 100mA.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910035534.0A CN109660002A (en) | 2019-01-15 | 2019-01-15 | A kind of charger of Auto-matching battery types |
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| CN201910035534.0A CN109660002A (en) | 2019-01-15 | 2019-01-15 | A kind of charger of Auto-matching battery types |
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| CN114179673A (en) * | 2021-12-01 | 2022-03-15 | 武汉小安科技有限公司 | Electricity changing cabinet control method and device and electricity changing cabinet |
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| CN102075004A (en) * | 2011-01-17 | 2011-05-25 | 中兴通讯股份有限公司 | Battery protection device and method of direct-current (DC) power supply |
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