CN109327062A - Method for charging batteries, apparatus and system - Google Patents

Method for charging batteries, apparatus and system Download PDF

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Publication number
CN109327062A
CN109327062A CN201811500720.9A CN201811500720A CN109327062A CN 109327062 A CN109327062 A CN 109327062A CN 201811500720 A CN201811500720 A CN 201811500720A CN 109327062 A CN109327062 A CN 109327062A
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CN
China
Prior art keywords
battery
signal
high pressure
fast charge
management system
Prior art date
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CN201811500720.9A
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Chinese (zh)
Inventor
丁磊
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Human Horizons Jiangsu Power Battery System Co Ltd
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China Express Holdings Co Ltd
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Application filed by China Express Holdings Co Ltd filed Critical China Express Holdings Co Ltd
Priority to CN201811500720.9A priority Critical patent/CN109327062A/en
Publication of CN109327062A publication Critical patent/CN109327062A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0024Parallel/serial switching of connection of batteries to charge or load circuit
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

Abstract

The present invention provides a kind of method for charging batteries, apparatus and system, this method is applied to high pressure allocation component, wherein high pressure allocation component is connected with battery management system;High pressure allocation component is also connected with battery to be charged, and the battery modules of multiple parallel connections are provided in battery, and high pressure allocation component is used to switch the connection type between battery modules;This method comprises: receiving the switching signal that battery management system is sent;Battery modules are switched to serial connection mode by parallel connection mode based on switching signal;The mould group fast charge signal that battery management system is sent is received, to charge the battery by external power.The present invention can effectively shorten to the time used in battery charging, and then improve the charge efficiency of battery.

Description

Method for charging batteries, apparatus and system
Technical field
The present invention relates to technical field of new energy, more particularly, to a kind of method for charging batteries, apparatus and system.
Background technique
New-energy automobile is the development trend of the following trip tool, is provided in new-energy automobile for charging to vehicle Battery system needs to charge to battery system before charging using battery system to vehicle.Currently, to the electricity of new-energy automobile When cell system charges, since charging current is limited by electrical components such as high-voltage relays in charging circuit, so that charging electricity Road can not transmit higher charging current, have additionally, due to all kinds of peripheral hardware charge power supplies to the charging current that battery system transmits Limit, causes the charging time of battery system not shorten further, limits improvements in charge efficiency.
Summary of the invention
In view of this, can be effectively shortened the purpose of the present invention is to provide a kind of method for charging batteries, apparatus and system The time used to battery charging, and then improve the charge efficiency of battery.
In a first aspect, this method is applied to high pressure allocation component the embodiment of the invention provides a kind of method for charging batteries, Wherein, high pressure allocation component is connected with battery management system;High pressure allocation component is also connected with battery to be charged, sets in battery The battery modules of multiple parallel connections are equipped with, high pressure allocation component is used to switch the connection type between battery modules;Above method packet It includes: receiving the switching signal that battery management system is sent;Battery modules are switched to by parallel connection mode based on switching signal Serial connection mode;The mould group fast charge signal that battery management system is sent is received, to charge the battery by external power;Mould group Fast charge signal includes the negative closure signal of fast charge and the positive closure signal of fast charge.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein on State the step of battery modules are switched to by parallel connection mode by serial connection mode based on switching signal, comprising: based on switching Signal controls the switching relay closure in high pressure allocation component, by make battery module by parallel connection in a manner of be switched to and serially connect Connect mode.
With reference to first aspect, the embodiment of the invention provides second of possible embodiments of first aspect, wherein on It states and receives battery management system sending module fast charge signal, with the step of by external power to battery charging, comprising: connect Battery management system sending module fast charge signal is received, is connected to based on mould group fast charge signal with external power, so that external power passes Defeated charging current is transmitted to each battery modules, charges to each battery modules.
The possible embodiment of second with reference to first aspect, the embodiment of the invention provides the third of first aspect Possible embodiment, wherein above-mentioned reception battery management system sending module fast charge signal is based on mould group fast charge signal and institute State external power connection so that external power transmission charging current be transmitted to each battery modules, to each battery modules into The step of row charging, comprising: after battery modules are switched to serial connection mode by parallel connection mode, receive the cell tube The negative closure signal of fast charge that reason system is sent, based on the negative relay of fast charge in the negative closure signal control high pressure allocation component of fast charge Closure;After the negative relay of fast charge in high pressure allocation component is closed, receives the fast charge that battery management system is sent and be just closed letter Number, based on the positive relay closure of fast charge in the positive closure signal control high pressure allocation component of fast charge, so that peripheral hardware charge power supply passes Defeated charging current is transmitted to each battery modules, charges to each battery modules.
With reference to first aspect, the embodiment of the invention provides the 4th kind of possible embodiments of first aspect, wherein on State method further include: the battery discharge signal that battery management system is sent is received, to discharge by battery to vehicle;Battery discharge Signal includes main negative closure signal and main positive closure signal.
The 4th kind of possible embodiment with reference to first aspect, the embodiment of the invention provides the 5th kind of first aspect Possible embodiment, wherein the battery discharge signal that above-mentioned reception battery management system is sent, to be put by battery to vehicle The step of electricity, comprising: receive the negative closure signal of master that battery management system is sent;Based on the negative closure signal control high pressure distribution of master The negative relay closure of master in component;Receive the positive closure signal of master that battery management system is sent;Based on the positive closure signal control of master The positive relay closure of master in high pressure allocation component processed, so that the discharge current of each battery modules is transmitted to vehicle, puts vehicle Electricity.
Second aspect, the embodiment of the present invention also provide a kind of battery charger, and device is applied to high pressure allocation component, In, high pressure allocation component is connected with battery management system;High pressure allocation component is also connected with battery to be charged, setting in battery There are the battery modules of multiple parallel connections, high pressure allocation component is used to switch the connection type between battery modules;Device includes:
Switching signal receiving module sends switching signal for receiving battery management system;
Switching module, for battery modules to be switched to serial connection mode by parallel connection mode based on switching signal;
Fast charge signal receiving module, for receiving battery management system sending module fast charge signal, to pass through external power It charges the battery;Mould group fast charge signal includes the negative closure signal of fast charge and the positive closure signal of fast charge.
In conjunction with second aspect, the embodiment of the invention provides the first possible embodiments of second aspect, wherein on It states switching module to be also used to: based on the switching relay closure in switching signal control high pressure allocation component, so that battery module Serial connection mode is switched to by parallel connection mode.
In conjunction with second aspect, the embodiment of the invention provides second of possible embodiments of second aspect, wherein on It states fast charge signal receiving module to be also used to: receiving battery management system sending module fast charge signal, be based on fast charge signal and peripheral hardware Power supply connection charges to each battery modules so that the charging current of external power transmission is transmitted to each battery modules.
The third aspect, the embodiment of the present invention also provide a kind of batter-charghing system, including high pressure allocation component, and with height The battery management system and battery to be charged that pressure allocation component is respectively connected with;Wherein, battery management system is used for high pressure point Distribution assembly sends control signal;The battery modules of multiple parallel connections are provided in battery to be charged;High pressure allocation component is for holding The 5th kind of possible described in any item methods of embodiment of row such as first aspect to first aspect.
The embodiment of the present invention bring it is following the utility model has the advantages that
A kind of method for charging batteries provided in an embodiment of the present invention, apparatus and system, are executed by high pressure allocation component, In, high pressure allocation component is connected with battery management system, and high pressure allocation component is also connected with battery, is provided with again in battery multiple Battery modules in parallel, when receiving the switching signal of battery management system transmission, according to the switching signal by battery modules Between connection type be switched to serial connection by being connected in parallel, then receive battery management system transmission mould group fast charge signal, So that external power charges the battery.The embodiment of the present invention can be preceding by the connection side between each battery modules to battery charging Formula is switched to serial connection by being connected in parallel, under charging current unanimous circumstances, due to being applied to electricity under serial connection mode Total charging voltage on pond is the sum of the charging voltage being applied in each battery modules, that is, the total charging electricity being applied on battery Pressure improves, and charge power also increases accordingly, therefore can effectively shorten charging time of battery, and then improves the charging effect of battery Rate.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims And specifically noted structure is achieved and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of flow chart of method for charging batteries provided in an embodiment of the present invention;
Fig. 2 is the flow chart of another method for charging batteries provided in an embodiment of the present invention;
Fig. 3 is the connection schematic diagram of high pressure allocation unit and module system provided in an embodiment of the present invention;
Fig. 4 is a kind of structural schematic diagram of battery charger provided in an embodiment of the present invention;
Fig. 5 is a kind of structural schematic diagram of batter-charghing system provided in an embodiment of the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise Under every other embodiment obtained, shall fall within the protection scope of the present invention.
Currently, when charging to the battery system of new-energy automobile, due to the high-pressure insert in charging circuit, high-voltage relay The limitation of the electrical components such as device and high-voltage conducting wires, so that charging circuit can not transmit higher charging current, in addition, due to all kinds of The charging current of peripheral hardware charge power supply transmission is limited, causes the charging time of battery system not reduce further, Jin Erwu Method effectively improves the charge efficiency of battery system, is based on this, a kind of method for charging batteries provided in an embodiment of the present invention, device and System can effectively shorten to the time used in battery system charging, and then improve the charge efficiency of battery system.
For convenient for understanding the present embodiment, first to a kind of method for charging batteries disclosed in the embodiment of the present invention into Row is discussed in detail, wherein and this method is applied to high pressure allocation component, further, high pressure allocation component and BMS (Battery Management System, battery management system are connected;High pressure allocation component is also connected with battery to be charged, sets in battery The battery modules of multiple parallel connections are equipped with, high pressure allocation component is also used to switch the connection type between each battery modules, connection side Formula includes parallel connection and serial connection.Battery modules can be by multiple battery cells by string and mode is connected and formed.
A kind of flow chart of method for charging batteries shown in Figure 1, method includes the following steps:
Step S102 receives the switching signal that the battery management system is sent.
Based on charging security consideration, because high pressure allocation component (that is, high pressure allocation unit) is for switching each battery mould Connection type between group, and for transmitting electric current between battery modules and peripheral hardware charge power supply, so when BMS system receives When to battery charging instruction, component state included in high pressure allocation component should be detected first, to judge high pressure All components in allocation component are without exception and if only if components all in high pressure allocation component with the presence or absence of exception When, just start to charge the battery.Specifically, judging that content may include each relay for being included in high pressure allocation component Whether it is in without instruction off-state, if each relay is in off-state, then it represents that high pressure allocation component fault-free.
After confirming that high pressure allocation component is without exception, high pressure allocation component receives the switching signal that BMS is sent, wherein cuts It is corresponding with the switching relay in high pressure allocation component to change signal.
Battery modules are switched to serial connection mode by parallel connection mode based on switching signal by step S104.
After receiving switching signal, according to the switching signal control switching relay closure, by each battery modules it Between connection type switch to serial connection by being connected in parallel.
It should be understood that being applied to always filling on battery when the connection type between each battery modules is serial connection Piezoelectric voltage is the sum of the charging voltage being applied in each battery modules, according to the relationship of power, electric current and voltage, i.e. power etc. In the product of electric current and voltage, it is known that charging current always in the case where, charging voltage increase, charge power also with Increase, and then can achieve reduce the charging time purpose.
Step S106 receives the mould group fast charge signal that battery management system is sent, to charge the battery by external power.
It, can be by high pressure allocation component and peripheral hardware after the connection type between each battery modules is switched to serial connection It is connected between charge power supply, specifically, the mould group fast charge signal that battery management system is sent is received, by filling for external power transmission Electric current is transmitted to each battery modules, charges to each battery modules, charges the battery to realize.
A kind of method for charging batteries provided in an embodiment of the present invention, is executed by high pressure allocation component, wherein high pressure distribution group Part is connected with battery management system, and high pressure allocation component is also connected with battery, is provided with the battery mould of multiple parallel connections in battery again Group, when receiving the switching signal of battery management system transmission, according to the switching signal by the connection side between battery modules Formula is switched to serial connection by being connected in parallel, then receives the mould group fast charge signal of battery management system transmission, so that external power It charges the battery.The embodiment of the present invention can to battery charging before by the connection type between each battery modules by being connected in parallel It is switched to serial connection, under charging current unanimous circumstances, due to the total charging being applied on battery under serial connection mode Voltage is the sum of the charging voltage being applied in each battery modules, that is, the total charging voltage being applied on battery improves, charging Power also increases accordingly, therefore can effectively shorten charging time of battery, and then improves the charge efficiency of battery.
It is well known that when the electric current of circuit transmission is larger, in circuit conducting wire and electrical component will cause A degree of loss.The present invention because connection type when charging to battery between each battery modules is serial connection, The total charging voltage being applied on battery is the sum of the charging voltage being applied in each battery modules, and because power is equal to electricity The product of pressure and electric current, so charging current when charging circuit transmits is smaller, so this hair when charge power is consistent The method that bright embodiment provides, can also be effectively relieved loss of the charging current to charging circuit.
For the ease of understanding above-described embodiment, the embodiment of the invention also provides another method for charging batteries, By taking battery modules are two as an example, the flow chart of another method for charging batteries referring to fig. 2, this method includes following step It is rapid:
Step S202 receives the switching signal that battery management system is sent.
High pressure allocation unit (that is, high pressure allocation component) is separately connected with module system 1 and module system 2, wherein mould Group system is aforementioned battery modules, the connection schematic diagram of high pressure allocation unit as shown in Figure 3 and module system, high pressure distribution Include multiple relays in unit, may include preliminary filling relay K1, lead positive relay K2, the positive relay K3 of fast charge, lead and bear Relay K4, the switching of super-pressure fast charge relay (that is, switching relay) K5, main positive relay K6, preliminary filling relay K7 and The negative relay K9 of fast charge.
It before charging the battery, needs to detect above-mentioned all relays, judges that above-mentioned all relays are It is no to be in an off state, and then learn whether high pressure allocation unit is abnormal.After confirming that each relay is without exception, cell tube is received The switching command that reason system is sent.
Step S204, based on the switching relay closure in switching signal control high pressure allocation component, so that battery module Serial connection mode is switched to by parallel connection mode.
Based on switching signal control super-pressure fast charge switching relay K5 closure, to make module system 1 and module system 2 Between connection type be switched to serial connection by being connected in parallel.
Step S206 receives battery management system sending module fast charge signal, is connected to based on fast charge signal with external power, So that the charging current of external power transmission is transmitted to each battery modules, charge to each battery modules.
The embodiment of the present invention furthermore presents the process to charge by external power to battery:
(1) it after battery modules are switched to serial connection mode by parallel connection mode, receives battery management system and sends The negative closure signal of fast charge, based on the negative relay closure of fast charge in fast charge negative closure signal control high pressure allocation component.
In view of the safety problem that charges, negative power supply should be first connected, so when super-pressure fast charge switching relay K5 is closed After conjunction, it is based on the negative closure signal of fast charge, makes the negative relay K9 closure of above-mentioned fast charge, is connected to the negative interface of fast charge.
(2) after the negative relay of fast charge in high pressure allocation component is closed, the fast charge of battery management system transmission is being received just Closure signal, based on the positive relay closure of fast charge in the positive closure signal control high pressure allocation component of fast charge, so that peripheral hardware charges The charging current of power delivery is transmitted to each battery modules, charges to each battery modules.
After above-mentioned fast charge negative relay K9 closure, it is based on the positive closure signal of fast charge, makes the positive relay K3 closure of fast charge, even It is connected to the positive interface of fast charge, forms fast charge circuit, and transmit the charging current of the transmission of peripheral hardware charge power supply by fast charge circuit To each module system, the fast charge of complete battery pair.Specifically, charge circuit includes the positive interface of sequentially connected fast charge, fast charge Positive relay K3, module system 1, super-pressure fast charge switching relay K5, module system 2, the negative relay K9 of fast charge and fast charge are negative Interface.
Method provided in an embodiment of the present invention will be between each module system after confirmation high pressure allocation unit is without exception Connection type is switched to serial connection mode, then successively control relay closure, fast charge circuit is formed, to realize to battery Quick charge.The embodiment of the present invention is under charging current unanimous circumstances, since the charging voltage of the embodiment of the present invention is common Twice of the charge power for being higher than and commonly charging can be obtained in twice of charging voltage, and then charge efficiency is made to be common charging effect Twice of rate.In addition, charge power always in the case where, due to the charging current of the embodiment of the present invention be the prior art charging The half of electric current so that charging current reduces the loss of charging circuit, while can also be reduced to high-pressure insert, high-voltage conducting wires With the specification requirement of high-voltage relay.
When being stored with electricity in battery, can be discharged by the battery to vehicle, with high pressure allocation unit shown in Fig. 3 For the connection type of module system, the embodiment of the invention also provides another method for charging batteries, this method is to receive The battery discharge signal that battery management system is sent, with the process discharged by battery to vehicle.
In view of also needing to consider electric discharge safety problem to vehicle electric discharge, it is therefore desirable to detect in high pressure allocation unit Whether each relay is without exception.After confirming that each relay is without exception, it can discharge vehicle.Specifically, receiving battery management The negative closure signal of master that system is sent, based on the negative relay closure of master in the negative closure signal control high pressure allocation component of master;So The positive closure signal of master that battery management system is sent is received afterwards, and based on the master in the positive closure signal control high pressure allocation component of master Positive relay closure is discharged by battery modules to vehicle so that the discharge current of each battery modules is transmitted to vehicle.
Preferably as the discharge current of battery conveying is excessively high, high pressure allocation unit and vehicle may be damaged, So first carrying out preliminary filling to vehicle after confirmation high pressure allocation unit is without exception.Be primarily based on main negative closure signal, make it is main it is negative after Electric appliance K4 and main negative relay K8 closure, are connected to the negative interface of vehicle high pressure, then control preliminary filling relay K1 and preliminary filling relay Device K7 closure, is connected to the high positive pressure interface of vehicle, carries out preliminary filling to vehicle by module system 1 and module system 2.Wherein, to The pre-charging time of vehicle can be 200ms.
When the difference of the high positive pressure interface voltage of vehicle and the high positive pressure interface voltage of vehicle is less than 10V, can stop pre- It fills, and is discharged by battery module to vehicle, disconnected specifically, controlling preliminary filling relay K1 and preliminary filling relay K7 first, so The positive closure signal of master that battery management system is sent is received afterwards, and based on the master in the positive closure signal control high pressure allocation component of master Positive relay closure discharges to vehicle by battery modules so that the discharge current of each battery modules is transmitted to the vehicle.? I.e. after above-mentioned preliminary filling relay K1 and preliminary filling relay K7 is disconnected, main positive relay K2 can be controlled and main positive relay K6 is closed It closes, makes to lead positive relay K2 and main positive relay K6 is connected to the high positive pressure interface of vehicle, form battery discharge circuit, and pass through electricity The discharge current that each module system transmits is transmitted to vehicle by tank discharge circuit.When discharging to vehicle, because super-pressure is fast It fills switching relay K5 to be in an off state, so module system 1 and module system 2 are connected in parallel.
In conclusion switch the connection type between each module system by high pressure allocation unit, when module system simultaneously When row connection, it can be discharged by battery to vehicle, common current can also be transmitted to battery, as common charging;When mould group When system is connected in series, the charging time of battery can be shortened by peripheral hardware charge power supply to quickly charging battery, and then improved The charge efficiency of battery.
For the method for charging batteries that previous embodiment provides, the embodiment of the invention also provides a kind of chargings of battery to fill It sets, which is applied to high pressure allocation component, wherein high pressure allocation component is connected with battery management system;High pressure allocation component Also it is connected with battery to be charged, the battery modules of multiple parallel connections is provided in battery, high pressure allocation component is for switching battery Connection type between mould group;A kind of structural schematic diagram of method for charging batteries shown in Figure 4, the device include with lower part Point:
Switching signal receiving module 402 sends switching signal for receiving battery management system.
Switching module 404 is serially connected for being switched to the battery modules by parallel connection mode based on switching signal Connect mode.
Fast charge signal receiving module 406, for receiving battery management system sending module fast charge signal, to pass through peripheral hardware electricity It charges to the battery in source.
A kind of battery charger provided in an embodiment of the present invention is applied to high pressure allocation component, when switching signal receives mould When block receives the switching signal of battery management system transmission, switching module is according to the switching signal by the company between battery modules It connects mode and is switched to serial connection by being connected in parallel, then the mould group that battery management system is sent is received by fast charge signal receiving module Fast charge signal, so that external power charges the battery.The embodiment of the present invention can to battery charging before by each battery modules it Between connection type be switched to serial connection by being connected in parallel, under charging current unanimous circumstances, due to be connected in series mode Under total charging voltage for being applied on battery be the sum of the charging voltage being applied in each battery modules, that is, be applied on battery Total charging voltage improve, charge power also increases accordingly, therefore can effectively shorten charging time of battery, and then improves electricity The charge efficiency in pond.
Further, switching module is stated to be also used to close based on the switching relay in switching signal control high pressure allocation component Close, by make battery module by parallel connection in a manner of be switched to serial connection mode.,
Further, above-mentioned fast charge signal receiving module is also used to: battery management system sending module fast charge signal is received, It is connected to based on fast charge signal with external power, so that the charging current of external power transmission is transmitted to each battery modules, to each electricity Chi Mo group charges.
The technical effect and preceding method embodiment phase of device provided by the embodiment of the present invention, realization principle and generation Together, to briefly describe, Installation practice part does not refer to place, can refer to corresponding contents in preceding method embodiment.
The embodiment of the invention also provides a kind of batter-charghing system, a kind of batter-charghing system shown in Figure 5 Structural schematic diagram, the system include high pressure allocation component 500, and the battery management being respectively connected with high pressure allocation component 500 System 502 and battery 504 to be charged.Wherein, battery management system 502 is used to send control signal to high pressure allocation component, The battery modules of multiple parallel connections are provided in battery 504 to be charged, high pressure allocation component 500 is for executing above-described embodiment institute The method of offer.
Batter-charghing system provided in an embodiment of the present invention receives cutting for battery management system transmission by high pressure allocation component Signal is changed, the connection type between each battery modules in battery to be charged is switched to serial connection by being connected in parallel, Under charging current unanimous circumstances, since the total charging voltage being applied on battery under serial connection mode is to be applied to each electricity The sum of charging voltage in Chi Mo group, that is, the total charging voltage being applied on battery improve, and charge power also increases accordingly, therefore It can effectively shorten charging time of battery, and then improve the charge efficiency of battery.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description Specific work process, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light It is readily conceivable that variation or equivalent replacement of some of the technical features;And these modifications, variation or replacement, do not make The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. a kind of method for charging batteries, which is characterized in that the method is applied to high pressure allocation component, wherein the high pressure point Distribution assembly is connected with battery management system;The high pressure allocation component is also connected with battery to be charged, setting in the battery There are the battery modules of multiple parallel connections, the high pressure allocation component is used to switch the connection type between the battery modules;It is described Method includes:
Receive the switching signal that the battery management system is sent;
The battery modules are switched to serial connection mode by parallel connection mode based on the switching signal;
The mould group fast charge signal that the battery management system is sent is received, to charge by external power to the battery;It is described Mould group fast charge signal includes the negative closure signal of fast charge and the positive closure signal of fast charge.
2. the method according to claim 1, wherein it is described based on the switching signal by the battery modules by Parallel connection mode is switched to the step of serial connection mode, comprising:
The closure of the switching relay in the high pressure allocation component is controlled based on the switching signal, so that battery module is by parallel Connection type is switched to serial connection mode.
3. the method according to claim 1, wherein described receive the battery management system sending module fast charge Signal, with the step of by external power to battery charging, comprising:
The battery management system sending module fast charge signal is received, is connected based on the mould group fast charge signal and the external power It is logical, so that the charging current of external power transmission is transmitted to each battery modules, each battery modules are filled Electricity.
4. according to the method described in claim 3, it is characterized in that, described receive the battery management system sending module fast charge Signal is connected to based on the mould group fast charge signal with the external power, so that the charging current of external power transmission passes The step of transporting to each battery modules, charging to each battery modules, comprising:
After the battery modules are switched to serial connection mode by parallel connection mode, receive the battery management system and send The negative closure signal of fast charge, the negative relay of fast charge in the high pressure allocation component is controlled based on the negative closure signal of the fast charge and is closed It closes;
After the negative relay of fast charge in the high pressure allocation component is closed, the fast charge of the battery management system transmission is being received just Closure signal controls the positive relay closure of the fast charge in the high pressure allocation component based on the positive closure signal of the fast charge, so that The charging current of the peripheral hardware charge power supply transmission is transmitted to each battery modules, charges to each battery modules.
5. the method according to claim 1, wherein the method also includes:
The battery discharge signal that the battery management system is sent is received, to discharge by the battery to vehicle;The battery Discharge signal includes main negative closure signal and main positive closure signal.
6. according to the method described in claim 5, it is characterized in that, the battery for receiving the battery management system transmission is put Electric signal, to pass through the step of battery discharges to the vehicle, comprising:
Receive the negative closure signal of master that the battery management system is sent;
The negative relay closure of the master in the high pressure allocation component is controlled based on the negative closure signal of the master;
Receive the positive closure signal of master that the battery management system is sent;
The positive relay closure of the master in the high pressure allocation component is controlled based on the positive closure signal of the master, so that each battery The discharge current of mould group is transmitted to the vehicle, discharges the vehicle.
7. a kind of battery charger, which is characterized in that described device is applied to high pressure allocation component, wherein the high pressure point Distribution assembly is connected with battery management system;The high pressure allocation component is also connected with battery to be charged, setting in the battery There are the battery modules of multiple parallel connections, the high pressure allocation component is used to switch the connection type between the battery modules;It is described Device includes:
Switching signal receiving module sends switching signal for receiving the battery management system;
Switching module, for the battery modules to be switched to serial connection side by parallel connection mode based on the switching signal Formula;
Fast charge signal receiving module, for receiving the battery management system sending module fast charge signal, to pass through external power It charges to the battery;The mould group fast charge signal includes the negative closure signal of fast charge and the positive closure signal of fast charge.
8. device according to claim 7, which is characterized in that the switching module is also used to:
The closure of the switching relay in the high pressure allocation component is controlled based on the switching signal, so that battery module is by parallel Connection type is switched to serial connection mode.
9. device according to claim 7, which is characterized in that the fast charge signal receiving module is also used to:
The battery management system sending module fast charge signal is received, is connected based on the mould group fast charge signal and the external power It is logical, so that the charging current of external power transmission is transmitted to each battery modules, each battery modules are filled Electricity.
10. a kind of batter-charghing system, which is characterized in that divide including high pressure allocation component, and with the high pressure allocation component Not Xiang Lian battery management system and battery to be charged;Wherein,
The battery management system is used to send control signal to the high pressure allocation component;
The battery modules of multiple parallel connections are provided in the battery to be charged;
The high pressure allocation component is for executing such as method as claimed in any one of claims 1 to 6.
CN201811500720.9A 2018-12-07 2018-12-07 Method for charging batteries, apparatus and system Pending CN109327062A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104142466A (en) * 2013-05-06 2014-11-12 广州汽车集团股份有限公司 Automotive relay contact closed-state detecting system and method
CN108099685A (en) * 2018-02-06 2018-06-01 中航锂电技术研究院有限公司 Lithium ion battery for electric vehicle system and charging heating method
CN207939235U (en) * 2018-03-06 2018-10-02 贵安新区新特电动汽车工业有限公司 A kind of fast charge charging circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104142466A (en) * 2013-05-06 2014-11-12 广州汽车集团股份有限公司 Automotive relay contact closed-state detecting system and method
CN108099685A (en) * 2018-02-06 2018-06-01 中航锂电技术研究院有限公司 Lithium ion battery for electric vehicle system and charging heating method
CN207939235U (en) * 2018-03-06 2018-10-02 贵安新区新特电动汽车工业有限公司 A kind of fast charge charging circuit

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