CN105576756A - Multi-voltage output power battery system - Google Patents
Multi-voltage output power battery system Download PDFInfo
- Publication number
- CN105576756A CN105576756A CN201610026591.9A CN201610026591A CN105576756A CN 105576756 A CN105576756 A CN 105576756A CN 201610026591 A CN201610026591 A CN 201610026591A CN 105576756 A CN105576756 A CN 105576756A
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- China
- Prior art keywords
- battery
- low
- voltage
- electrokinetic cell
- management system
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims description 11
- 229910001416 lithium ion Inorganic materials 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 2
- 238000011217 control strategy Methods 0.000 abstract description 2
- 238000007726 management method Methods 0.000 description 160
- 230000005540 biological transmission Effects 0.000 description 29
- 238000004891 communication Methods 0.000 description 12
- 238000013500 data storage Methods 0.000 description 11
- 238000012544 monitoring process Methods 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 239000005955 Ferric phosphate Substances 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 6
- 229940032958 ferric phosphate Drugs 0.000 description 6
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 6
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- QHGJSLXSVXVKHZ-UHFFFAOYSA-N dilithium;dioxido(dioxo)manganese Chemical compound [Li+].[Li+].[O-][Mn]([O-])(=O)=O QHGJSLXSVXVKHZ-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- LBSANEJBGMCTBH-UHFFFAOYSA-N manganate Chemical compound [O-][Mn]([O-])(=O)=O LBSANEJBGMCTBH-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008054 signal transmission Effects 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
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- H02J2007/0067—
-
- 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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
Abstract
The invention provides a multi-voltage output power battery system, which comprises a rechargeable battery, a battery management system, a DC/DC, a battery pack housing, an electrical interface and other parts, wherein the rechargeable battery mainly takes charge of storing and outputting energy; a plurality of batteries are connected with one another in series to form a battery module; the series batteries with different number can output different voltages to the outside; an input end of the DC/DC is connected with a positive electrode and a negative electrode of a high-voltage battery system; an output end of the DC/DC is connected with the positive electrode and the negative electrode of a low-voltage battery system; working of the DC/DC is controlled by the battery management system; and the battery management system determines a control strategy and communicates with the outside according to voltage, current and temperature information of the batteries.
Description
Technical field
The present invention relates to electric automobile, particularly electric automobile power battery system.
Background technology
Electric automobile needs two batteries usually, and one is the electrokinetic cell of high pressure, and be responsible for electric automobile and provide drive energy, another is A-battery, is responsible for automobile low power used system and provides power supply.The electrokinetic cell of high pressure is usually by external complement energy, and A-battery passes through DC/DC makeup energy by the electrokinetic cell of high pressure.A-battery is lead-acid battery normally, and lead-acid battery weight is large, volume large, and the life-span is short, also unfriendly to environment.
Summary of the invention
The object of this invention is to provide the electrokinetic cell system that a kind of multivoltage exports and provide drive energy for electric automobile, electrokinetic cell system is also for automobile low power used system provides power supply simultaneously, can save the low pressure lead-acid battery of electric automobile.Electrokinetic cell system of the present invention is made up of rechargeable battery, battery management system, DC/DC, battery pack case, electrical apparatus interface and other parts.Rechargeable battery primary responsibility stores and exports energy, and multiple battery strings is unified into battery module, and the battery of different series connection number can outwards export different voltage.Battery management system primary responsibility dynamics of management battery, one is manage the safety that battery uses, and one is the balanced management to battery charge state, can also have other functions, as data storage function, communication function etc.The energy trasfer of high-tension battery to A-battery, is made the charged equilibrium of whole battery system by DC/DC primary responsibility.Battery pack case mainly protects battery, battery management system, DC/DC and other devices.Electrical apparatus interface primary responsibility is connected with external circuit, comprises high voltage interface and low-voltage interface.Other parts include relay, insurance, temperature sensor, current sensor etc.Electrical apparatus interface is positioned on battery pack case, and other devices are all inner in power brick.High tension loop is in series with whole electrokinetic cell, high-voltage relay, insurance, current sensor and high voltage interface etc., and low tension loop is in series with a few battery modules, low-voltage relay, insurance, current sensor and low-voltage interface etc.Often save electrokinetic cell to be all connected with battery management system, battery management system can gather the information of voltage of every batteries.The break-make of high-voltage relay and low-voltage relay is all controlled by battery management system.The signal of current sensor collection all transmits and battery management system.Temperature sensor is positioned at the surface of battery, the signal transmission that temperature sensor gathers and battery management system.The input of DC/DC connects the both positive and negative polarity of high-voltage battery system, and the output of DC/DC connects the both positive and negative polarity of low voltage battery system, and the work of DC/DC is controlled by battery management system.Battery management system is according to voltage, electric current and the temperature information decision control strategy of battery and communicate with the external world.
Accompanying drawing explanation
Fig. 1 is the schematic diagram with the battery system that high-low pressure exports
The high voltage negative of 1-cell, 2-battery system, the low pressure negative pole of 3-battery system, the low pressure positive pole of 4-battery system, the high-voltage positive electrode of 5-battery system.
Fig. 2 is the schematic diagram that high-low pressure exports the battery system sharing positive pole
The positive pole that the high voltage negative of 21-cell, 22-battery system, the low pressure negative pole of 23-battery system, 24-battery system high-low pressure share.
Fig. 3 is the schematic diagram that high-low pressure exports the battery system sharing negative pole
Negative pole, the low pressure positive pole of 33-battery system, the high-voltage positive electrode of 34-battery system that 31-cell, 32-battery system high-low pressure share.
Fig. 4 is the schematic diagram that DC/DC connects battery system
The high voltage negative of 41-cell, 42-battery system, the low pressure negative pole of 43-battery system, the low pressure positive pole of 44-battery system, the high-voltage positive electrode of 45-battery system, 46--DC/DC.
Embodiment
Embodiment one
Electrokinetic cell system is made up of the parts such as rechargeable battery, battery management system, DC/DC, battery pack case, electrical apparatus interface and relay, insurance, temperature sensor, current sensor.Wherein rechargeable battery is 18650 type lithium ion batteries of ternary system, multiple cell parallel forms single-unit module, multiple module is connected into battery high-pressure system, and three series-connected cell modules are wherein responsible for exporting low tension to low-pressure system, and the high-low pressure of battery system exports not common electrode.The input of DC/DC connects the both positive and negative polarity of high-voltage battery system, and the output of DC/DC connects the both positive and negative polarity of low voltage battery system, and DC/DC is controlled the A-battery formed to this three series-connected cell modules by the energy trasfer of high-voltage battery system by battery management system.Battery management system primary responsibility dynamics of management battery, the safety that battery uses is managed, the parameter such as voltage, electric current, temperature of battery management system monitoring battery, guarantee that battery parameter runs in the reasonable scope, once parameter goes beyond the scope, battery management system just gives the alarm and notifies that relevant actuator takes measures, and prevents battery from occurring overcharge, overdischarge, overcurrent, applied at elevated temperature, low temperature use etc.Battery management system is to the balanced management of the state-of-charge of the battery of different voltage, when the state-of-charge of A-battery is lower than high-pressure system, notice DC/DC work, when the state-of-charge of A-battery is higher than high-pressure system 2%, notice DC/DC quits work, and by DC/DC work, the charged of whole battery system is kept in balance.Battery management system also has other as functions such as data storage, communications.Battery pack case is square plastic shell, mainly protects battery, battery management system, DC/DC and other devices.High tension loop is in series with whole electrokinetic cell, high-voltage relay, insurance, current sensor and high voltage interface etc., and low tension loop is in series with a few battery modules, low-voltage relay, insurance, current sensor and low-voltage interface etc.Two interfaces that electrical apparatus interface adopts high-low pressure to separate, high voltage interface primary responsibility high-voltage battery system is connected with external impetus circuit, and low-voltage interface comprises low-tension supply interface and commmunication interface.High-voltage relay is arranged on the negative pole end of high-pressure system, is controlled by battery management system.High-voltage insurance is connected on the positive terminal of high-pressure system.Low-voltage relay is arranged on the negative pole end of low-pressure system, is controlled by battery management system.Low pressure insurance is connected on the positive terminal of low-pressure system.Temperature sensor is arranged on the surface of battery, sample information transmission and battery management system.High-voltage current sensor is arranged on the positive terminal of high-pressure system, sample information transmission and battery management system.Low-tension current transducer is arranged on the positive terminal of low-pressure system, sample information transmission and battery management system.
Embodiment two
Electrokinetic cell system is made up of the parts such as rechargeable battery, battery management system, DC/DC, battery pack case, electrical apparatus interface and relay, insurance, temperature sensor, current sensor.Wherein rechargeable battery is square ferric phosphate lithium ion battery, and multiple rectangular cell is connected into battery high-pressure system, and four series-connected cell modules are wherein responsible for exporting low tension to low-pressure system, and the high-low pressure of battery system exports not common electrode.The input of DC/DC connects the both positive and negative polarity of high-voltage battery system, and the output of DC/DC connects the both positive and negative polarity of low voltage battery system, and DC/DC is controlled the A-battery formed to this four series-connected cell modules by the energy trasfer of high-voltage battery system by battery management system.Battery management system primary responsibility dynamics of management battery, the safety that battery uses is managed, the parameter such as voltage, electric current, temperature of battery management system monitoring battery, guarantee that battery parameter runs in the reasonable scope, once parameter goes beyond the scope, battery management system just gives the alarm and notifies that relevant actuator takes measures, and prevents battery from occurring overcharge, overdischarge, overcurrent, applied at elevated temperature, low temperature use etc.Battery management system is to the balanced management of the state-of-charge of the battery of different voltage, when the state-of-charge of A-battery is lower than high-pressure system, notice DC/DC work, when the state-of-charge of A-battery is higher than high-pressure system 2%, notice DC/DC quits work, and by DC/DC work, the charged of whole battery system is kept in balance.Battery management system also has other as functions such as data storage, communications.Battery pack case is square plastic shell, mainly protects battery, battery management system, DC/DC and other devices.High tension loop is in series with whole electrokinetic cell, high-voltage relay, insurance, current sensor and high voltage interface etc., and low tension loop is in series with a few battery modules, low-voltage relay, insurance, current sensor and low-voltage interface etc.Two interfaces that electrical apparatus interface adopts high-low pressure to separate, high voltage interface primary responsibility high-voltage battery system is connected with external impetus circuit, and low-voltage interface comprises low-tension supply interface and commmunication interface.High-voltage relay is arranged on the negative pole end of high-pressure system, is controlled by battery management system.High-voltage insurance is connected on the positive terminal of high-pressure system.Low-voltage relay is arranged on the negative pole end of low-pressure system, is controlled by battery management system.Low pressure insurance is connected on the positive terminal of low-pressure system.Temperature sensor is arranged on the surface of battery, sample information transmission and battery management system.High-voltage current sensor is arranged on the positive terminal of high-pressure system, sample information transmission and battery management system.Low-tension current transducer is arranged on the positive terminal of low-pressure system, sample information transmission and battery management system.
Embodiment three
Electrokinetic cell system is made up of the parts such as rechargeable battery, battery management system, DC/DC, battery pack case, electrical apparatus interface and relay, insurance, temperature sensor, current sensor.Wherein rechargeable battery is 18650 type lithium ion batteries of ternary system, multiple cell parallel forms single-unit module, multiple module is connected into battery high-pressure system, and three series-connected cell modules are wherein responsible for exporting low tension to low-pressure system, and the high-low pressure of battery system exports and shares negative pole.The input of DC/DC connects the positive pole of high-voltage battery system in the positive pole of low voltage battery system, the output of DC/DC connects the both positive and negative polarity of low voltage battery system, and DC/DC is controlled the A-battery formed to this three series-connected cell modules by the energy trasfer of high-voltage battery system by battery management system.Battery management system primary responsibility dynamics of management battery, the safety that battery uses is managed, the parameter such as voltage, electric current, temperature of battery management system monitoring battery, guarantee that battery parameter runs in the reasonable scope, once parameter goes beyond the scope, battery management system just gives the alarm and notifies that relevant actuator takes measures, and prevents battery from occurring overcharge, overdischarge, overcurrent, applied at elevated temperature, low temperature use etc.Battery management system is to the balanced management of the state-of-charge of the battery of different voltage, when the state-of-charge of A-battery is lower than high-pressure system, notice DC/DC work, when the state-of-charge of A-battery is higher than high-pressure system 2%, notice DC/DC quits work, and by DC/DC work, the charged of whole battery system is kept in balance.Battery management system also has other as functions such as data storage, communications.Battery pack case is square sheet metal shell, mainly protects battery, battery management system, DC/DC and other devices.High tension loop is in series with whole electrokinetic cell, high-voltage relay, insurance, current sensor and high voltage interface etc., and low tension loop is in series with a few battery modules, low-voltage relay, insurance, current sensor and low-voltage interface etc.Two interfaces that electrical apparatus interface adopts high-low pressure to separate, high voltage interface primary responsibility high-voltage battery system is connected with external impetus circuit, and low-voltage interface comprises low-tension supply interface and commmunication interface.High-voltage relay is arranged on the negative pole end of high-pressure system, is controlled by battery management system.High-voltage insurance is connected on the positive terminal of high-pressure system.Low-voltage relay is arranged on the negative pole end of low-pressure system, is controlled by battery management system.Low pressure insurance is connected on the positive terminal of low-pressure system.Temperature sensor is arranged on the surface of battery, sample information transmission and battery management system.High-voltage current sensor is arranged on the positive terminal of high-pressure system, sample information transmission and battery management system.Low-tension current transducer is arranged on the positive terminal of low-pressure system, sample information transmission and battery management system.
Embodiment four
Electrokinetic cell system is made up of the parts such as rechargeable battery, battery management system, DC/DC, battery pack case, electrical apparatus interface and relay, insurance, temperature sensor, current sensor.Wherein rechargeable battery is square ferric phosphate lithium ion battery, and multiple rectangular cell is connected into battery high-pressure system, and four series-connected cell modules are wherein responsible for exporting low tension to low-pressure system, and the high-low pressure of battery system exports and shares positive pole.The input of DC/DC connects the negative pole of high-voltage battery system and the negative pole of low voltage battery system, the output of DC/DC connects the both positive and negative polarity of low voltage battery system, and DC/DC is controlled the A-battery formed to this four series-connected cell modules by the energy trasfer of high-voltage battery system by battery management system.Battery management system primary responsibility dynamics of management battery, the safety that battery uses is managed, the parameter such as voltage, electric current, temperature of battery management system monitoring battery, guarantee that battery parameter runs in the reasonable scope, once parameter goes beyond the scope, battery management system just gives the alarm and notifies that relevant actuator takes measures, and prevents battery from occurring overcharge, overdischarge, overcurrent, applied at elevated temperature, low temperature use etc.Battery management system is to the balanced management of the state-of-charge of the battery of different voltage, when the state-of-charge of A-battery is lower than high-pressure system, notice DC/DC work, when the state-of-charge of A-battery is higher than high-pressure system 2%, notice DC/DC quits work, and by DC/DC work, the charged of whole battery system is kept in balance.Battery management system also has other as functions such as data storage, communications.Battery pack case is square sheet metal shell, mainly protects battery, battery management system, DC/DC and other devices.High tension loop is in series with whole electrokinetic cell, high-voltage relay, insurance, current sensor and high voltage interface etc., and low tension loop is in series with a few battery modules, low-voltage relay, insurance, current sensor and low-voltage interface etc.Two interfaces that electrical apparatus interface adopts high-low pressure to separate, high voltage interface primary responsibility high-voltage battery system is connected with external impetus circuit, and low-voltage interface comprises low-tension supply interface and commmunication interface.High-voltage relay is arranged on the negative pole end of high-pressure system, is controlled by battery management system.High-voltage insurance is connected on the positive terminal of high-pressure system.Low-voltage relay is arranged on the negative pole end of low-pressure system, is controlled by battery management system.Low pressure insurance is connected on the positive terminal of low-pressure system.Temperature sensor is arranged on the surface of battery, sample information transmission and battery management system.High-voltage current sensor is arranged on the positive terminal of high-pressure system, sample information transmission and battery management system.Low-tension current transducer is arranged on the positive terminal of low-pressure system, sample information transmission and battery management system.
Embodiment five
Electrokinetic cell system is made up of the parts such as rechargeable battery, battery management system, DC/DC, battery pack case, electrical apparatus interface and relay, insurance, temperature sensor, current sensor.Wherein rechargeable battery is the rectangular lithium ion battery of ternary system, multiple battery strings is unified into battery high-pressure system, three series-connected cells are wherein responsible for exporting low tension to low-pressure system, and the capacity of these three batteries is greater than the capacity of other batteries, and the capacity had more is 5%--50%.The high-low pressure of battery system exports and shares negative pole.The input of DC/DC connects the positive pole of high-voltage battery system in the positive pole of low voltage battery system, the output of DC/DC connects the both positive and negative polarity of low voltage battery system, and DC/DC is controlled the A-battery formed to this three series-connected cell modules by the energy trasfer of high-voltage battery system by battery management system.Battery management system primary responsibility dynamics of management battery, the safety that battery uses is managed, the parameter such as voltage, electric current, temperature of battery management system monitoring battery, guarantee that battery parameter runs in the reasonable scope, once parameter goes beyond the scope, battery management system just gives the alarm and notifies that relevant actuator takes measures, and prevents battery from occurring overcharge, overdischarge, overcurrent, applied at elevated temperature, low temperature use etc.Battery management system is to the balanced management of the state-of-charge of the battery of different voltage, when the state-of-charge of A-battery is lower than high-pressure system, notice DC/DC work, when the supplemented capacitance of A-battery is lower than the supplemented capacitance of high-pressure system, notice DC/DC quits work, and by DC/DC work, the charged of whole battery system is kept in balance.Battery management system also has other as functions such as data storage, communications.Battery pack case is square sheet metal shell, mainly protects battery, battery management system, DC/DC and other devices.High tension loop is in series with whole electrokinetic cell, high-voltage relay, insurance, current sensor and high voltage interface etc., and low tension loop is in series with a few battery modules, low-voltage relay, insurance, current sensor and low-voltage interface etc.Electrical apparatus interface adopts high-low pressure to concentrate interface, and interface comprises high pressure connecting interface, low-tension supply interface and commmunication interface.High-voltage relay is arranged on the negative pole end of high-pressure system, is controlled by battery management system.High-voltage insurance is connected on the positive terminal of high-pressure system.Low-voltage relay is arranged on the negative pole end of low-pressure system, is controlled by battery management system.Low pressure insurance is connected on the positive terminal of low-pressure system.Temperature sensor is arranged on the surface of battery, sample information transmission and battery management system.High-voltage current sensor is arranged on the positive terminal of high-pressure system, sample information transmission and battery management system.Low-tension current transducer is arranged on the positive terminal of low-pressure system, sample information transmission and battery management system.
Embodiment six
Electrokinetic cell system is made up of the parts such as rechargeable battery, battery management system, DC/DC, battery pack case, electrical apparatus interface and relay, insurance, temperature sensor, current sensor.Wherein rechargeable battery is the ferric phosphate lithium ion battery of flexible package, multiple flexible package ferric phosphate lithium cell is connected into battery high-pressure system, four battery strings are wherein unified into module and are responsible for exporting low tension to low-pressure system, the capacity of these four batteries is greater than the capacity of other batteries, and capacity has more 5%--50%.The high-low pressure of battery system exports and shares positive pole.The input of DC/DC connects the negative pole of high-voltage battery system and the negative pole of low voltage battery system, the output of DC/DC connects the both positive and negative polarity of low voltage battery system, and DC/DC is controlled the A-battery formed to this four series-connected cell modules by the energy trasfer of high-voltage battery system by battery management system.Battery management system primary responsibility dynamics of management battery, the safety that battery uses is managed, the parameter such as voltage, electric current, temperature of battery management system monitoring battery, guarantee that battery parameter runs in the reasonable scope, once parameter goes beyond the scope, battery management system just gives the alarm and notifies that relevant actuator takes measures, and prevents battery from occurring overcharge, overdischarge, overcurrent, applied at elevated temperature, low temperature use etc.Battery management system is to the balanced management of the state-of-charge of the battery of different voltage, when the state-of-charge of A-battery is lower than high-pressure system, notice DC/DC work, when the supplemented capacitance of A-battery is lower than the supplemented capacitance of high-pressure system, notice DC/DC quits work, and by DC/DC work, the charged of whole battery system is kept in balance.Battery management system also has other as functions such as data storage, communications.Battery pack case is square sheet metal shell, mainly protects battery, battery management system, DC/DC and other devices.High tension loop is in series with whole electrokinetic cell, high-voltage relay, insurance, current sensor and high voltage interface etc., and low tension loop is in series with a few battery modules, low-voltage relay, insurance, current sensor and low-voltage interface etc.Electrical apparatus interface adopts high-low pressure to concentrate interface, and interface comprises high pressure connecting interface, low-tension supply interface and commmunication interface.High-voltage relay is arranged on the negative pole end of high-pressure system, is controlled by battery management system.High-voltage insurance is connected on the positive terminal of high-pressure system.Low-voltage relay is arranged on the negative pole end of low-pressure system, is controlled by battery management system.Low pressure insurance is connected on the positive terminal of low-pressure system.Temperature sensor is arranged on the surface of battery, sample information transmission and battery management system.High-voltage current sensor is arranged on the positive terminal of high-pressure system, sample information transmission and battery management system.Low-tension current transducer is arranged on the positive terminal of low-pressure system, sample information transmission and battery management system.
Embodiment seven
Electrokinetic cell system is made up of the parts such as rechargeable battery, battery management system, DC/DC, battery pack case, electrical apparatus interface and relay, insurance, temperature sensor, current sensor.Wherein rechargeable battery is lithium titanate flexible packing lithium ion battery, multiple battery strings is unified into battery high-pressure system, five series-connected cells are wherein responsible for exporting low tension to low-pressure system, and the capacity of these five batteries is greater than the capacity of other batteries, and the capacity had more is 5%--50%.The high-low pressure of battery system exports and shares negative pole.The input of DC/DC connects the positive pole of high-voltage battery system in the positive pole of low voltage battery system, the output of DC/DC connects the both positive and negative polarity of low voltage battery system, and DC/DC is controlled the A-battery formed to this five series-connected cell modules by the energy trasfer of high-voltage battery system by battery management system.Battery management system primary responsibility dynamics of management battery, the safety that battery uses is managed, the parameter such as voltage, electric current, temperature of battery management system monitoring battery, guarantee that battery parameter runs in the reasonable scope, once parameter goes beyond the scope, battery management system just gives the alarm and notifies that relevant actuator takes measures, and prevents battery from occurring overcharge, overdischarge, overcurrent, applied at elevated temperature, low temperature use etc.Battery management system is to the balanced management of the state-of-charge of the battery of different voltage, when the state-of-charge of A-battery is lower than high-pressure system, notice DC/DC work, when the supplemented capacitance of A-battery is lower than the supplemented capacitance of high-pressure system, notice DC/DC quits work, and by DC/DC work, the charged of whole battery system is kept in balance.Battery management system also has other as functions such as data storage, communications.Battery pack case is square sheet metal shell, mainly protects battery, battery management system, DC/DC and other devices.High tension loop is in series with whole electrokinetic cell, high-voltage relay, insurance, current sensor and high voltage interface etc., and low tension loop is in series with a few battery modules, low-voltage relay, insurance, current sensor and low-voltage interface etc.Electrical apparatus interface adopts high-low pressure to concentrate interface, and interface comprises high pressure connecting interface, low-tension supply interface and commmunication interface.High-voltage relay is arranged on the negative pole end of high-pressure system, is controlled by battery management system.High-voltage insurance is connected on the positive terminal of high-pressure system.Low-voltage relay is arranged on the positive terminal of low-pressure system, is controlled by battery management system.Low pressure insurance is connected on the positive terminal of low-pressure system.Temperature sensor is arranged on the surface of battery, sample information transmission and battery management system.High-voltage current sensor is arranged on the positive terminal of high-pressure system, sample information transmission and battery management system.Low-tension current transducer is arranged on the positive terminal of low-pressure system, sample information transmission and battery management system.
Embodiment eight
Electrokinetic cell system is made up of the parts such as rechargeable battery, battery management system, DC/DC, battery pack case, electrical apparatus interface and relay, insurance, temperature sensor, current sensor.Wherein rechargeable battery is the manganate lithium ion battery of flexible package, multiple flexible package lithium manganate battery is connected into battery high-pressure system, three battery strings are wherein unified into module and are responsible for exporting low tension to low-pressure system, and the capacity of these three batteries is greater than the capacity of other batteries, and capacity has more 5%--50%.The high-low pressure of battery system exports and shares positive pole.The input of DC/DC connects the negative pole of high-voltage battery system and the negative pole of low voltage battery system, the output of DC/DC connects the both positive and negative polarity of low voltage battery system, and DC/DC is controlled the A-battery formed to this three series-connected cell modules by the energy trasfer of high-voltage battery system by battery management system.Battery management system primary responsibility dynamics of management battery, the safety that battery uses is managed, the parameter such as voltage, electric current, temperature of battery management system monitoring battery, guarantee that battery parameter runs in the reasonable scope, once parameter goes beyond the scope, battery management system just gives the alarm and notifies that relevant actuator takes measures, and prevents battery from occurring overcharge, overdischarge, overcurrent, applied at elevated temperature, low temperature use etc.Battery management system is to the balanced management of the state-of-charge of the battery of different voltage, when the state-of-charge of A-battery is lower than high-pressure system, notice DC/DC work, when the supplemented capacitance of A-battery is lower than the supplemented capacitance of high-pressure system, notice DC/DC quits work, and by DC/DC work, the charged of whole battery system is kept in balance.Battery management system also has other as functions such as data storage, communications.Battery pack case is square sheet metal shell, mainly protects battery, battery management system, DC/DC and other devices.High tension loop is in series with whole electrokinetic cell, high-voltage relay, insurance, current sensor and high voltage interface etc., and low tension loop is in series with a few battery modules, low-voltage relay, insurance, current sensor and low-voltage interface etc.Electrical apparatus interface adopts high-low pressure to concentrate interface, and interface comprises high pressure connecting interface, low-tension supply interface and commmunication interface.High-voltage relay is arranged on the positive terminal of high-pressure system, is controlled by battery management system.High-voltage insurance is connected on the negative pole end of high-pressure system.Low-voltage relay is arranged on the negative pole end of low-pressure system, is controlled by battery management system.Low pressure insurance is connected on the positive terminal of low-pressure system.Temperature sensor is arranged on the surface of battery, sample information transmission and battery management system.High-voltage current sensor is arranged on the positive terminal of high-pressure system, sample information transmission and battery management system.Low-tension current transducer is arranged on the positive terminal of low-pressure system, sample information transmission and battery management system.
Embodiment nine
Electrokinetic cell system is made up of the parts such as rechargeable battery, battery management system, battery pack case, electrical apparatus interface and relay, insurance, temperature sensor, current sensor.Wherein rechargeable battery is the rectangular lithium ion battery of ternary system, multiple battery strings is unified into battery high-pressure system, seven series-connected cells are wherein responsible for exporting low tension to low-pressure system, and the capacity of these seven batteries is greater than the capacity of other batteries, and the capacity had more is 5%--50%.The high-low pressure of battery system exports and shares negative pole.Battery management system controls outside DC/DC by communication system and works, by the A-battery of the energy trasfer of high-voltage battery system to these seven series-connected cell module compositions.Battery management system primary responsibility dynamics of management battery, the safety that battery uses is managed, the parameter such as voltage, electric current, temperature of battery management system monitoring battery, guarantee that battery parameter runs in the reasonable scope, once parameter goes beyond the scope, battery management system just gives the alarm and notifies that relevant actuator takes measures, and prevents battery from occurring overcharge, overdischarge, overcurrent, applied at elevated temperature, low temperature use etc.Battery management system also has other as functions such as data storage, communications.Battery pack case is square sheet metal shell, mainly protects battery, battery management system and other devices.High tension loop is in series with whole electrokinetic cell, high-voltage relay, insurance, current sensor and high voltage interface etc., and low tension loop is in series with a few battery modules, low-voltage relay, insurance, current sensor and low-voltage interface etc.Electrical apparatus interface adopts high-low pressure to concentrate interface, and interface comprises high pressure connecting interface, low-tension supply interface and commmunication interface.High-voltage relay is arranged on the negative pole end of high-pressure system, is controlled by battery management system.High-voltage insurance is connected on the negative pole end of high-pressure system.Low-voltage relay is arranged on the negative pole end of low-pressure system, is controlled by battery management system.Low pressure insurance is connected on the negative pole end of low-pressure system.Temperature sensor is arranged on the surface of battery, sample information transmission and battery management system.High-voltage current sensor is arranged on the positive terminal of high-pressure system, sample information transmission and battery management system.Low-tension current transducer is arranged on the positive terminal of low-pressure system, sample information transmission and battery management system.
Embodiment ten
Electrokinetic cell system is made up of the parts such as rechargeable battery, battery management system, DC/DC, battery pack case, electrical apparatus interface and relay, insurance, temperature sensor, current sensor.Wherein rechargeable battery is the ferric phosphate lithium ion battery of flexible package, multiple flexible package ferric phosphate lithium cell is connected into battery high-pressure system, eight battery strings are wherein unified into module and are responsible for exporting low tension to low-pressure system, the capacity of these eight batteries is greater than the capacity of other batteries, and capacity has more 5%--50%.The high-low pressure of battery system exports and shares positive pole.The input of DC/DC connects the negative pole of high-voltage battery system and the negative pole of low voltage battery system, the output of DC/DC connects the both positive and negative polarity of low voltage battery system, and DC/DC is controlled the A-battery formed to this eight series-connected cell modules by the energy trasfer of high-voltage battery system by battery management system.Battery management system primary responsibility dynamics of management battery, the safety that battery uses is managed, the parameter such as voltage, electric current, temperature of battery management system monitoring battery, guarantee that battery parameter runs in the reasonable scope, once parameter goes beyond the scope, battery management system just gives the alarm and notifies that relevant actuator takes measures, and prevents battery from occurring overcharge, overdischarge, overcurrent, applied at elevated temperature, low temperature use etc.Battery management system is to the balanced management of the state-of-charge of the battery of different voltage, when the state-of-charge of A-battery is lower than high-pressure system, notice DC/DC work, when the supplemented capacitance of A-battery is lower than the supplemented capacitance of high-pressure system, notice DC/DC quits work, and by DC/DC work, the charged of whole battery system is kept in balance.Battery management system also has other as functions such as data storage, communications.Battery pack case is square sheet metal shell, mainly protects battery, battery management system, DC/DC and other devices.High tension loop is in series with whole electrokinetic cell, high-voltage relay, insurance, current sensor and high voltage interface etc., and low tension loop is in series with a few battery modules, low-voltage relay and low-voltage interface etc.Electrical apparatus interface adopts high-low pressure to concentrate interface, and interface comprises high pressure connecting interface, low-tension supply interface and commmunication interface.High-voltage relay is arranged on the negative pole end of high-pressure system, is controlled by battery management system.High-voltage insurance is connected on the positive terminal of high-pressure system.Low-voltage relay is arranged on the negative pole end of low-pressure system, is controlled by battery management system.Temperature sensor is arranged on the surface of battery, sample information transmission and battery management system.High-voltage current sensor is arranged on the positive terminal of high-pressure system, sample information transmission and battery management system.
Above-described embodiment is certain applications of the present invention, and different battery, battery management system, DC/DC, shell, interface etc. have many combinations, and these different combinations can realize the present invention.
Claims (10)
1. an electrokinetic cell bag, primarily of electrokinetic cell, battery management system, shell, interface composition, is characterized in that the battery of electrokinetic cell bag can simultaneously output power supply and low-tension supply.
2. electrokinetic cell bag according to claim 1, it is characterized in that electrokinetic cell bag at least comprises a DC/DC device, the input of DC/DC connects positive pole and the negative pole of high voltage power battery pack, and the output of DC/DC connects positive pole and the negative pole of low-tension supply battery pack.
3. electrokinetic cell bag according to claim 1, is characterized in that electrokinetic cell bag high voltage power battery pack and low-tension supply battery pack share negative pole.
4. electrokinetic cell bag according to claim 3, it is characterized in that electrokinetic cell bag at least comprises a DC/DC device, the input of DC/DC connects the positive pole of high voltage power battery pack and the positive pole of low-tension supply battery pack, and the output of DC/DC connects positive pole and the negative pole of low-tension supply battery pack.
5. electrokinetic cell bag according to claim 1, is characterized in that the single battery capacity of the low-tension supply battery pack of electrokinetic cell bag is greater than the capacity of other electrokinetic cells joint body.
6. electrokinetic cell bag according to claim 5, is characterized in that electrokinetic cell bag low-tension supply battery pack single battery battery capacity is 105% to 150% of other single-unit electrokinetic cell capacity.
7. electrokinetic cell bag according to claim 1, is characterized in that electrokinetic cell bag at least comprises a DC/DC device, the work of battery management system control DC/DC, and DC/DC can the state-of-charge of balanced high voltage power battery pack and low-tension supply battery pack.
8. electrokinetic cell bag according to claim 7, start working when it is characterized in that the residual capacity of the residual capacity of the DC/DC of electrokinetic cell bag in low-tension supply battery pack lower than other electrokinetic cells, DC/DC quits work when the supplemented capacitance of low-tension supply battery pack is less than the supplemented capacitance of other electrokinetic cells.
9. electrokinetic cell bag according to claim 1, is characterized in that electrokinetic cell is ternary lithium ion battery.
10. electrokinetic cell bag according to claim 9, is characterized in that electrokinetic cell is 18650 batteries.
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| CN201610026591.9A CN105576756A (en) | 2016-01-17 | 2016-01-17 | Multi-voltage output power battery system |
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| CN201610026591.9A CN105576756A (en) | 2016-01-17 | 2016-01-17 | Multi-voltage output power battery system |
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| US11289924B2 (en) | 2019-08-09 | 2022-03-29 | Techtronic Cordless Gp | Battery pack including a high- and low-current discharge terminals |
| US11424504B2 (en) | 2019-08-09 | 2022-08-23 | Techtronic Cordless Gp | Battery pack support portion configured to accommodate multiple different device interfaces |
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Application publication date: 20160511 |