CN114243832A - Charging system and charging device - Google Patents
Charging system and charging device Download PDFInfo
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- CN114243832A CN114243832A CN202111531609.8A CN202111531609A CN114243832A CN 114243832 A CN114243832 A CN 114243832A CN 202111531609 A CN202111531609 A CN 202111531609A CN 114243832 A CN114243832 A CN 114243832A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/50—Charging stations characterised by energy-storage or power-generation means
- B60L53/53—Batteries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/60—Monitoring or controlling charging stations
- B60L53/64—Optimising energy costs, e.g. responding to electricity rates
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
- H02J7/0025—Sequential battery discharge in systems with a plurality of batteries
-
- 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
-
- 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
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Abstract
The invention provides a charging system and a charging device, which relate to the technical field of charging equipment and comprise the following components: the charging system comprises a plurality of battery packs, a plurality of DC/DC modules and a plurality of first relay circuits, wherein each battery pack comprises a plurality of battery packs, the plurality of DC/DC modules are connected with the battery packs with the technical problem of low system benefits of a plurality of existing charging systems in a one-to-one correspondence mode, the output ends of the DC/DC modules are connected with a charging terminal group, the output ends of any two DC/DC modules are connected with each other, the input end of one first relay circuit is connected with the plurality of battery packs in one battery pack in a one-to-one correspondence mode, and the output ends of the plurality of first relay circuits are connected with the corresponding DC/DC modules; the electric energy output by any battery pack in each battery pack is input to a plurality of charging terminal groups through the corresponding DC/DC module, and the technical problem of low benefit of the conventional charging system is solved.
Description
Technical Field
The present invention relates to the field of charging devices, and in particular, to a charging system and a charging device.
Background
The current new energy automobile's rapid growth brings great power consumption demand, and current charging system electric energy application mainly has: (1) the charging and discharging of the energy storage battery are realized through the alternating current and grid connection of the bidirectional AC/DC module; (2) and the charging and discharging of the energy storage battery are realized through the direct current grid connection of the bidirectional DC/DC module.
However, the existing charging system and the charging pile are low in coupling, and the electric energy of the energy storage battery can be charged into the new energy automobile only after being converted by the bidirectional module and then being subjected to primary DC/DC conversion or AC/DC conversion.
In addition, one battery pack of the conventional charging system can only supply power for one charging terminal, so that a plurality of battery packs cannot work simultaneously, and power is supplied to one or more charging terminals simultaneously, so that the system benefit is low.
No effective solution has been proposed to the above problems.
Disclosure of Invention
In view of the above, the present invention provides a charging system to alleviate the technical problem of low system yield of the existing charging system.
In a first aspect, an embodiment of the present invention provides a charging system, including: the battery pack comprises a plurality of battery packs, a plurality of DC/DC modules and a plurality of first relay circuits, wherein each battery pack comprises a plurality of battery packs, the plurality of DC/DC modules are connected with the plurality of battery packs in a one-to-one correspondence manner, the output ends of the DC/DC modules are connected with a charging terminal group, the output ends of any two DC/DC modules are connected with each other, the input end of one first relay circuit is connected with the plurality of battery packs in one battery pack in a one-to-one correspondence manner, and the output ends of the plurality of first relay circuits are connected with the corresponding DC/DC modules; and the electric energy output by any battery pack in each battery pack is input to a plurality of charging terminal groups through the corresponding DC/DC module.
Further, the charging system further includes: a plurality of second relay circuits, wherein inputs of the plurality of second relay circuits are connected with outputs of the plurality of DC/DC modules.
Further, if the plurality of DC/DC modules include a first target DC/DC module and one or more second target DC/DC modules, where the first target DC/DC module is any one of the plurality of DC/DC modules, and the second target DC/DC module is a DC/DC module other than the first target DC/DC module, the input ends of the plurality of second relay circuits are all connected to the first target DC/DC module; and the electric energy output by any battery pack in each battery pack is input to any one charging terminal in the plurality of charging terminal groups through the corresponding DC/DC module.
Further, the charging system further includes: and a plurality of third relay circuits, wherein one of the third relay circuits is connected to one of the battery packs and one of the charging terminal groups, respectively.
Further, if the plurality of DC/DC modules includes a plurality of sub-DC/DC modules, the plurality of sub-DC/DC modules are connected to the plurality of second relay circuits in a one-to-one correspondence.
Further, the charging system further includes: a plurality of fourth relay circuits, wherein one fourth relay circuit is connected with the output ends of any two sub-DC/DC modules; under the condition that the plurality of fourth relay circuits are closed, electric energy output by any battery pack in each battery pack is input to any one charging terminal in the plurality of charging terminal groups through the corresponding DC/DC module; under the condition that the plurality of fourth relays are disconnected, the electric energy output by any battery pack in each battery pack is input to any charging terminal in the corresponding charging terminal group through the corresponding DC/DC module.
Further, the charging system further includes: and a plurality of fifth relay circuits, wherein one of the fifth relay circuits is connected to the input terminal and the output terminal of one of the sub-DC/DC modules, respectively.
Further, if the plurality of DC/DC modules include a first target DC/DC module and one or more second target DC/DC modules, the electric energy output by the charger charges any one battery pack of the plurality of battery packs through a plurality of third relay circuits; if the plurality of DC/DC modules include a plurality of sub-DC/DC modules, when the plurality of fourth relay circuits are closed, the electric energy output by the charger charges any one battery pack of the plurality of battery packs through the plurality of third relay circuits, and when the plurality of fourth relay circuits are open, the electric energy output by the charger charges any one battery pack of each battery pack through the plurality of fifth relay circuits.
Further, the charging system further includes: the metering device comprises a plurality of DC/DC modules, wherein if the plurality of DC/DC modules comprise a first target DC/DC module and one or more second target DC/DC modules, the number of the metering devices is 1, and the metering device is connected with the output end of the first target DC/DC module; if the plurality of DC/DC modules comprise a plurality of sub DC/DC modules, one metering device is connected with the output end of one sub DC/DC module; and the metering equipment is used for counting the electric energy used by the charging terminal group for charging the terminal equipment.
In a second aspect, an embodiment of the present invention further provides a charging device, including the charging system described in any one of the above first aspects, further including a plurality of charging terminal groups and a charger, where the charging system is configured to supply power to the plurality of charging terminal groups, and the charger is configured to charge a battery pack in the charging system.
In an embodiment of the present invention, a charging system includes a plurality of battery packs, a plurality of DC/DC modules, and a plurality of first relay circuits, where each battery pack includes a plurality of battery packs, the plurality of DC/DC modules are connected to the plurality of battery packs in a one-to-one correspondence, output terminals of the DC/DC modules are connected to a charging terminal group, output terminals of any two DC/DC modules are connected to each other, an input terminal of one first relay circuit is connected to the plurality of battery packs in one battery pack in a one-to-one correspondence, and output terminals of the plurality of first relay circuits are connected to the corresponding DC/DC modules; the electric energy of arbitrary battery package output in every group battery is inputed to a plurality of charging terminal group through the DC/DC module that corresponds, this charging system is through a DC/DC module of a plurality of battery package sharing in a group battery, a plurality of DC/DC parallel connection, thereby realized that a plurality of groups battery discharges in turn and exports jointly for a charging terminal or a plurality of charging terminal and supply power in the peak period of the price of electricity, reached and utilized the group battery to emit the purpose of more electric energy when the peak of the price of electricity, and then solved the lower technical problem of the income of current charging system, thereby realized the technological effect who promotes charging system's income.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic diagram of a first charging system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a second charging system according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a third charging system according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a first charging device according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a second charging device according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
according to an embodiment of the present invention, an embodiment of a charging system is provided, and fig. 1 is a flowchart of a charging system according to an embodiment of the present invention, as shown in fig. 1, the charging system includes: the battery pack comprises a plurality of battery packs 10, a plurality of DC/DC modules 20 and a plurality of first relay circuits 30, wherein each battery pack comprises a plurality of battery packs, the plurality of DC/DC modules are connected with the plurality of battery packs in a one-to-one correspondence manner, the output ends of the DC/DC modules are connected with a charging terminal group, the output ends of any two DC/DC modules are connected with each other, the input end of one first relay circuit is connected with the plurality of battery packs in one battery pack in a one-to-one correspondence manner, and the output ends of the plurality of first relay circuits are connected with the corresponding DC/DC modules;
and the electric energy output by any battery pack in each battery pack is input to a plurality of charging terminal groups through the corresponding DC/DC module.
It should be noted that one first relay circuit includes two relays, where an input terminal of one relay is connected to an anode of one battery pack, an input terminal of the other relay is connected to an anode of one battery pack, output terminals of the two relays are both connected to corresponding DC/DC modules, and if the relays connected to the anode and the cathode of one battery pack are both in a closed state, the battery pack transmits the stored electric energy to the corresponding DC/DC modules.
Preferably, the battery pack is formed by using retired power batteries of the new energy automobile, and energy storage echelon utilization is performed before the retired batteries are completely scrapped and disassembled, so that the resource utilization value is maximized, the residual value of the retired batteries is fully squeezed, and the retired battery absorption pressure is relieved.
It should be noted that the above-mentioned DC/DC module is used to convert the high-voltage electric energy output by the corresponding battery pack into electric energy with adjustable voltage and current.
In addition, it should be noted that the charging terminal can be a charging gun for charging a new energy automobile, and can also be a charging pile for various devices needing to be charged.
In an embodiment of the present invention, a charging system includes a plurality of battery packs, a plurality of DC/DC modules, and a plurality of first relay circuits, where each battery pack includes a plurality of battery packs, the plurality of DC/DC modules are connected to the plurality of battery packs in a one-to-one correspondence, output terminals of the DC/DC modules are connected to a charging terminal group, output terminals of any two DC/DC modules are connected to each other, an input terminal of one first relay circuit is connected to the plurality of battery packs in one battery pack in a one-to-one correspondence, and output terminals of the plurality of first relay circuits are connected to the corresponding DC/DC modules; the electric energy of arbitrary battery package output in every group battery is inputed to a plurality of charging terminal group through the DC/DC module that corresponds, this charging system is through a DC/DC module of a plurality of battery package sharing in a group battery, a plurality of DC/DC parallel connection, thereby realized that a plurality of groups battery discharges in turn and exports jointly for a charging terminal or a plurality of charging terminal and supply power in the peak period of the price of electricity, reached and utilized the group battery to emit the purpose of more electric energy when the peak of the price of electricity, and then solved the lower technical problem of the income of current charging system, thereby realized the technological effect who promotes charging system's income.
It should be noted that, the staff may divide the charging time and the discharging time of the battery pack, for example, during the peak time of the electricity price, the electric energy stored in the battery pack is used as the electric energy when the charging terminal charges the charging terminal, and during the valley time of the electricity price, the electric energy in the split charger is transmitted to the battery pack through the charging terminal, so that the battery pack stores the electric energy, thereby saving the electricity consumption cost of the charging system.
In the embodiment of the present invention, as shown in fig. 2 and 3, where the number of battery packs in fig. 2 and 3 is 2, the number of battery packs included in one battery pack is 3, the number of battery packs is BAT1, BAT2, BAT3, BAT4, BAT5 and BAT6, respectively, the number of charging terminal groups is 2, and the number of charging terminals included in one charging terminal group is 3, the charging terminals are Vout1, Vout2, Vout3, Vout4, Vout5 and Vout6, respectively.
The charging system further includes: and a plurality of second relay circuits 40, wherein the input terminals of the plurality of second relay circuits are connected with the output terminals of the plurality of DC/DC modules.
In the embodiment of the present invention, as shown in fig. 2, if a plurality of DC/DC modules include a first target DC/DC module and one or more second target DC/DC modules, where the first target DC/DC module is any one of the plurality of DC/DC modules, and the second target DC/DC module is a DC/DC module other than the first target DC/DC module, input ends of a plurality of second relay circuits are all connected to the first target DC/DC module;
and the electric energy output by any battery pack in each battery pack is input to any one charging terminal in the plurality of charging terminal groups through the corresponding DC/DC module.
It should be noted that, at this time, one second relay circuit includes two relays, where an input terminal of one relay is connected to an anode of one charging terminal, an input terminal of the other relay is connected to an anode of one charging terminal, and output terminals of the two relays are both connected to the first target DC/DC module, and if the relays connected to the anode and the cathode of one charging terminal are both in a closed state, the DC/DC module transmits voltage-and current-adjustable electric energy to the charging terminal.
In addition, if each battery pack in the plurality of battery packs inputs electric energy into the corresponding DC/DC module, the plurality of DC/DC modules corresponding to the plurality of battery packs can transmit the corresponding electric energy to any one of the charging terminals, thereby realizing one-to-many discharging between one battery pack and the plurality of charging terminals.
Further, as shown in fig. 2, the charging system further includes: and a plurality of third relay circuits 50, wherein one of the third relay circuits is connected to one battery pack and one charging terminal group, respectively.
It should be noted that, a third relay circuit includes two relays, where one end of one relay is connected to the positive electrode of one charging terminal, the other end of the relay is connected to the positive electrode of one battery pack, one end of the other relay is connected to the negative electrode of the charging terminal, and the other end of the relay is connected to the positive electrode of the battery pack.
In the embodiment of the present invention, when the positive electrode and the negative electrode of one charging terminal and two third sub-relays between the positive electrode and the negative electrode of the battery pack corresponding to the charging terminal are in a closed state, the electric energy in the charger charges the battery pack, thereby implementing one-to-one charging between the charging terminal and the battery pack.
In the embodiment of the present invention, as shown in fig. 3, if the plurality of DC/DC modules includes a plurality of sub-DC/DC modules, the plurality of sub-DC/DC modules are connected to the plurality of second relay circuits in a one-to-one correspondence.
The charging system further includes: and a plurality of fourth relay circuits 60, wherein one of the fourth relay circuits is connected to the output terminals of any two of the sub DC/DC modules.
It should be noted that, when a plurality of the fourth relay circuits are closed, the electric energy output by any one battery pack in each battery pack is input to any one charging terminal in the plurality of charging terminal groups through the corresponding DC/DC module.
In the embodiment of the present invention, if each battery pack in the plurality of battery packs inputs electric energy to the corresponding DC/DC module, the plurality of DC/DC modules corresponding to the plurality of battery packs may transmit the corresponding electric energy to any one charging terminal, so as to implement one-to-many discharging between one battery pack and the plurality of charging terminals.
If the plurality of fourth relays are disconnected, the electric energy output by any battery pack in each battery pack is input to any charging terminal in the corresponding charging terminal group through the corresponding DC/DC module, so that one-to-many discharging between one battery pack and the plurality of charging terminals in the corresponding charging terminal group is realized.
The charging system further includes: and a plurality of fifth relay circuits 70, wherein one of the fifth relay circuits is connected to the input terminal and the output terminal of one of the sub DC/DC modules, respectively.
In the embodiment of the invention, when two relays between the positive electrode and the negative electrode of one battery pack and the corresponding DC/DC module are in a closed state, two relays between the positive electrode and the negative electrode of any one or more charging terminals in a plurality of charging terminal groups and the DC/DC module are in a closed state, and when a fourth relay circuit corresponding to the battery pack is in a closed state, the battery pack can provide electric energy for the charging terminal, so that one-to-many discharge between one battery pack and a plurality of charging terminals is realized.
Further, when two relays between the positive electrode and the negative electrode of one battery pack and the DC/DC module are in a closed state, two relays between the positive electrode and the negative electrode of any one or more charging terminals in the plurality of charging terminal groups and the DC/DC module are in a closed state, and two relays in any one fifth relay circuit are in a closed state, the charging terminal may charge the battery pack using electric energy in the charger, thereby implementing one-to-many charging between one charging terminal and the plurality of battery packs, i.e., as long as one charging terminal in one charging terminal group is in an idle state, the charging terminal in the idle state may input electric energy of the charger into the battery pack in the battery pack corresponding to the charging terminal group, thereby charging the battery pack.
It should be noted that, at this time, the charger may be connected to the charging terminal, or may be disposed between the charging terminal and the second relay circuit, and respectively connected to the charging terminal and the second relay circuit.
In an embodiment of the present invention, as shown in fig. 2 and 3, the charging system further includes: a metering device 80.
If the plurality of DC/DC modules comprise a first target DC/DC module and one or more second target DC/DC modules, the number of the metering equipment is 1, and the metering equipment and the first target DC/DC module;
if the plurality of DC/DC modules comprise a plurality of sub DC/DC modules, one metering device is connected with one sub DC/DC module;
and the metering equipment is used for counting the electric energy used by the charging terminal group for charging the terminal equipment.
In the embodiment of the invention, the battery pack in the battery pack discharges, so that the electric quantity of the battery can be discharged in the peak time period of the electricity price, a small-rate discharge mode can be adopted, the heat productivity of the battery is reduced, and the service life of the battery is prolonged. The rotation mode can improve the utilization rate of the DC/DC module and share the system cost.
Furthermore, the embodiment of the invention has the advantages of peak clipping, valley filling and peak valley arbitrage by performing energy storage echelon utilization on the automobile retired battery, charging in the night low valley period and discharging in the daytime power consumption peak period. When the echelon battery is charged, the existing charging terminal resources on the charging station are multiplexed, the battery is charged through the change-over switch, and charging equipment cannot be additionally added. When the echelon battery is used for charging the automobile, the echelon battery is subjected to primary DC/DC conversion, and the conversion efficiency is high.
Example two:
an embodiment of the present invention provides a charging device, as shown in fig. 4 and 5, including the charging system in the above-described embodiment, further including a plurality of charging terminal groups and a charger, where the charging system is configured to supply power to the plurality of charging terminal groups, and the charger is configured to charge a battery pack in the charging system.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An electrical charging system, comprising: the battery pack comprises a plurality of battery packs, a plurality of DC/DC modules and a plurality of first relay circuits, wherein each battery pack comprises a plurality of battery packs, the plurality of DC/DC modules are connected with the plurality of battery packs in a one-to-one correspondence manner, the output ends of the DC/DC modules are connected with a charging terminal group, the output ends of any two DC/DC modules are connected with each other, the input end of one first relay circuit is connected with the plurality of battery packs in one battery pack in a one-to-one correspondence manner, and the output ends of the plurality of first relay circuits are connected with the corresponding DC/DC modules;
and the electric energy output by any battery pack in each battery pack is input to a plurality of charging terminal groups through the corresponding DC/DC module.
2. The charging system of claim 1, further comprising: a plurality of second relay circuits, wherein inputs of the plurality of second relay circuits are connected with outputs of the plurality of DC/DC modules.
3. The charging system according to claim 2, wherein if the plurality of DC/DC modules include a first target DC/DC module and one or more second target DC/DC modules, wherein the first target DC/DC module is any one of the plurality of DC/DC modules, and the second target DC/DC module is a DC/DC module other than the first target DC/DC module, the plurality of second relay circuit input terminals are all connected to the first target DC/DC module;
and the electric energy output by any battery pack in each battery pack is input to any one charging terminal in the plurality of charging terminal groups through the corresponding DC/DC module.
4. The charging system of claim 3, further comprising: and a plurality of third relay circuits, wherein one of the third relay circuits is connected to one of the battery packs and one of the charging terminal groups, respectively.
5. The charging system according to claim 2, wherein if the plurality of DC/DC modules includes a plurality of sub-DC/DC modules, the plurality of sub-DC/DC modules are connected to the plurality of second relay circuits in a one-to-one correspondence.
6. The charging system of claim 5, further comprising: a plurality of fourth relay circuits, wherein one fourth relay circuit is connected with the output ends of any two sub-DC/DC modules;
under the condition that the plurality of fourth relay circuits are closed, electric energy output by any battery pack in each battery pack is input to any one charging terminal in the plurality of charging terminal groups through the corresponding DC/DC module;
under the condition that the plurality of fourth relays are disconnected, the electric energy output by any battery pack in each battery pack is input to any charging terminal in the corresponding charging terminal group through the corresponding DC/DC module.
7. The charging system of claim 6, further comprising: and a plurality of fifth relay circuits, wherein one of the fifth relay circuits is connected to the input terminal and the output terminal of one of the sub-DC/DC modules, respectively.
8. The charging system according to claim 4 or 7,
if the plurality of DC/DC modules comprise a first target DC/DC module and one or more second target DC/DC modules, the electric energy output by the charger charges any battery pack in the plurality of battery packs through a plurality of third relay circuits;
if the plurality of DC/DC modules include a plurality of sub-DC/DC modules, when the plurality of fourth relay circuits are closed, the electric energy output by the charger charges any one battery pack of the plurality of battery packs through the plurality of third relay circuits, and when the plurality of fourth relay circuits are open, the electric energy output by the charger charges any one battery pack of each battery pack through the plurality of fifth relay circuits.
9. The charging system of claim 8, further comprising: a metering device, wherein,
if the plurality of DC/DC modules comprise a first target DC/DC module and one or more second target DC/DC modules, the number of the metering devices is 1, and the metering devices are connected with the output end of the first target DC/DC module;
if the plurality of DC/DC modules comprise a plurality of sub DC/DC modules, one metering device is connected with the output end of one sub DC/DC module;
and the metering equipment is used for counting the electric energy used by the charging terminal group.
10. A charging device, comprising the charging system of any one of claims 1 to 9, further comprising a plurality of groups of charging terminals and a charger, wherein the charging system is configured to supply power to the plurality of groups of charging terminals, and the charger is configured to charge a battery pack in the charging system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111531609.8A CN114243832A (en) | 2021-12-14 | 2021-12-14 | Charging system and charging device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111531609.8A CN114243832A (en) | 2021-12-14 | 2021-12-14 | Charging system and charging device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120084616A (en) * | 2011-01-20 | 2012-07-30 | 한화테크엠주식회사 | Charging device for electric vehicle |
| CN205646951U (en) * | 2016-05-27 | 2016-10-12 | 安徽江淮汽车股份有限公司 | Battery package fills electronic control system |
| CN110843599A (en) * | 2019-11-26 | 2020-02-28 | 安徽合力股份有限公司 | High-capacity lithium battery pack charging and discharging control system and control method thereof |
| CN214189325U (en) * | 2021-01-15 | 2021-09-14 | 上海比耐信息科技有限公司 | Automotive charger baby system |
-
2021
- 2021-12-14 CN CN202111531609.8A patent/CN114243832A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120084616A (en) * | 2011-01-20 | 2012-07-30 | 한화테크엠주식회사 | Charging device for electric vehicle |
| CN205646951U (en) * | 2016-05-27 | 2016-10-12 | 安徽江淮汽车股份有限公司 | Battery package fills electronic control system |
| CN110843599A (en) * | 2019-11-26 | 2020-02-28 | 安徽合力股份有限公司 | High-capacity lithium battery pack charging and discharging control system and control method thereof |
| CN214189325U (en) * | 2021-01-15 | 2021-09-14 | 上海比耐信息科技有限公司 | Automotive charger baby system |
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