CN111527006A - Three-phase charging circuit compatible with single-phase input and related equipment - Google Patents
Three-phase charging circuit compatible with single-phase input and related equipment Download PDFInfo
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- CN111527006A CN111527006A CN201980006631.5A CN201980006631A CN111527006A CN 111527006 A CN111527006 A CN 111527006A CN 201980006631 A CN201980006631 A CN 201980006631A CN 111527006 A CN111527006 A CN 111527006A
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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
- B60L53/10—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 characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
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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
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
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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
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
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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
- H02J7/04—Regulation of charging current or voltage
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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
- Y02T10/70—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
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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
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The application discloses compatible single-phase input's three-phase input charging circuit and relevant equipment, the circuit includes: a first input circuit, a second input circuit, a third input circuit; the first input circuit, the second input circuit and the third input circuit are connected in parallel, and the first input circuit, the second input circuit and the third input circuit are connected with the same zero line. By implementing the embodiment of the application, the output power of the circuit can be improved, and the embodiment of the application has the advantage of high user experience.
Description
Technical Field
The application relates to the field of new energy automobiles, in particular to a three-phase charging circuit compatible with single-phase input and related equipment.
Background
With the rapid development of the technology, the new energy automobile industry also develops rapidly, and more people choose to buy the new energy automobile, so that the requirements on the endurance mileage and the charging time of the new energy automobile are higher and higher, and the capacity of a battery of the new energy automobile is larger and larger.
At present, when charging new energy automobile, the single-phase electric pile that fills that widely uses on the market, however, the new energy automobile who disposes the large capacity battery need fill on the electric pile is filled to the three-phase to can't fill on the single-phase electric pile and charge, consequently, the new energy automobile who disposes the large capacity battery charges the flow complicacy, and user experience is low.
Disclosure of Invention
The application provides a compatible single-phase input's three-phase charging circuit and relevant equipment for make single-phase charging stake charge the new energy automobile who disposes the large capacity battery, simplify the charge flow of large capacity battery, improve user experience.
The present application provides in a first aspect a single-phase input compatible three-phase charging circuit, the circuit comprising: a first input circuit, a second input circuit, a third input circuit;
the first input circuit, the second input circuit and the third input circuit are connected in parallel, and the first input circuit, the second input circuit and the third input circuit are connected with the same zero line.
With reference to the first aspect of the present application, in one possible implementation manner of the first aspect of the present application, the first input circuit includes: the circuit comprises a first resistor, a first switch, a first detection circuit, a fourth switch, a first power factor correction circuit and a first booster circuit; one end of the first resistor is connected with an external first input interface, one end of the first switch is connected with the first detection circuit, the other end of the first switch is connected with the other end of the first resistor and the first selection end of the fourth switch, the first input port of the first power factor correction circuit is connected with the zero line, the fixed end of the fourth switch is connected with the second input port of the first power factor correction circuit, a first output port of the first power factor correction circuit is connected with a first input port of the first boost circuit, a second output port of the first power factor correction circuit is connected with a second input port of the first boost circuit, the first output port of the first booster circuit is connected with the first output port of the external battery pack, and the second output port of the first booster circuit is connected with the second input port of the external battery pack.
In one possible implementation, the second input circuit includes: the second resistor, the second switch, the second detection circuit, the fifth switch, the second power factor correction circuit and the second booster circuit; one end of the second resistor is connected with an external second input interface, one end of the second switch is connected with the second detection circuit, the other end of the second switch is connected with the other end of the second resistor and the first selection end of the fifth switch, a first input port of the second power factor correction circuit is connected with the zero line, a fixed end of the fifth switch is connected with a second input port of the second power factor correction circuit, a first output port of the second power factor correction circuit is connected with a first input port of the second boost circuit, a second output port of the second power factor correction circuit is connected with a second input port of the second boost circuit, a first output port of the second boost circuit is connected to a first output port of the external battery pack, and a second output port of the second booster circuit is connected with a second input port of the external battery pack.
In one possible implementation, the third input circuit includes: the third resistor, the third switch, the third detection circuit, the sixth switch, the third power factor correction circuit and the third booster circuit; one end of the third resistor is connected with an external third input interface, one end of the third switch is connected with the second detection circuit, the other end of the third switch is connected with the other end of the third resistor and the first selection end of the sixth switch, a first input port of the third power factor correction circuit is connected with the zero line, a fixed end of the sixth switch is connected with a second input port of the third power factor correction circuit, a first output port of the third power factor correction circuit is connected to a first input port of the third boost circuit, a second output port of the third power factor correction circuit is connected to a second input port of the third boost circuit, a first output port of the third boost circuit is connected to a first output port of the external battery pack, and a second output port of the third booster circuit is connected with a second input port of the external battery pack.
In one possible embodiment, the parallel connection of the first input circuit, the second input circuit, and the third input circuit comprises: the second of fourth switch select the end with the stiff end of fifth switch is connected, the second of fifth switch select the end with the stiff end of sixth switch is connected, the second of sixth switch select the end with the stiff end of fourth switch is connected.
In one possible embodiment, the first switch, the second switch, and the third switch are all normally open relays.
In one possible embodiment, the fourth switch, the fifth switch and the sixth switch are both normally closed relays.
In one possible embodiment, the first resistor, the second resistor, and the third resistor are all pre-charge resistors, wherein the pre-charge resistors include one or more of the following: aluminum shell resistor, thermistor, power resistor, cement resistor.
A second aspect of the present application provides a single-phase-input-compatible three-phase charging device, which includes the single-phase-input-compatible three-phase input charging circuit according to the first aspect.
The third aspect of the application provides an on-board device, which comprises the single-phase input compatible three-phase charging device according to the second aspect.
The application provides a three-phase charging circuit of compatible single-phase input, through first input circuit, the second input circuit, third input circuit parallel connection, first input circuit, the second input circuit, same zero line of third input circuit connection constitutes compatible single-phase input's three-phase charging circuit, it also can simultaneous working only to have realized three work branch road when single-phase input, improve output, realize that single-phase electric pile that fills charges to the new energy automobile who disposes large capacity battery, simplify the charge flow of large capacity battery, improve user experience degree.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic circuit structure diagram of a three-phase charging compatible with a single-phase input according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of another single-phase-input-compatible three-phase charging circuit provided in an embodiment of the present application;
fig. 3 is a schematic circuit structure diagram of the first input circuit 101 according to an embodiment of the present disclosure;
fig. 4 is a schematic circuit structure diagram of the second input circuit 102 according to an embodiment of the present disclosure;
fig. 5 is a schematic circuit structure diagram of the third input circuit 103 according to the embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.
The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1, fig. 1 is a schematic diagram of a circuit structure of a three-phase charging circuit compatible with a single-phase input according to an embodiment of the present disclosure, and as shown in fig. 1, the circuit includes: a first input circuit 101, a second input circuit 102 and a third input circuit 103.
Optionally, the first input circuit 101 includes: a first resistor R1, a first switch K1, a first detection circuit, a fourth switch K4, a first power factor correction circuit and a first boost circuit, wherein one end of the first resistor R1 is connected to an external first input interface L1, one end of the first switch K1 is connected to the first detection circuit, the other end of the first switch K1 is connected to the other end of the first resistor R1, the other end of the first resistor R1 is connected to a first selection terminal 42 of the fourth switch K4, a first input port of the first power factor correction circuit is connected to the neutral port N, a fixed end 41 of the fourth switch K4 is connected to a second input port of the first power factor correction circuit, a fixed end 41 of the fourth switch K4 is connected to a second selection terminal 43 of the fourth switch K4, a first output port of the first power factor correction circuit is connected to a first input port of the first boost circuit, a second output port of the first power factor correction circuit is connected to a second input port of the first boost circuit, the first output port of the first booster circuit is connected with the first output port of the external battery pack, and the second output port of the first booster circuit is connected with the second input port of the external battery pack.
Optionally, the second input circuit 102 includes: a second resistor R2, a second switch K2, a second detection circuit, a fifth switch K5, a second power factor correction circuit and a second voltage boost circuit, wherein one end of the second resistor R2 is connected with an external second input interface L2, one end of the second switch K2 is connected with the second detection circuit, the other end of the second switch K2 is connected with the other end of the second resistor R2, the other end of the second resistor R2 is connected with a first selection end 52 of the fifth switch K5, a first input port of the second power factor correction circuit is connected with a neutral port N, a fixed end 51 of the fifth switch K5 is connected with a second input port of the second power factor correction circuit, a fixed end 51 of the fifth switch K5 is connected with a second selection end 53 of the fifth switch K5, a first output port of the second power factor correction circuit is connected with a first input port of the second voltage boost circuit, a second output port of the second power factor correction circuit is connected with a second input port of the second voltage boost circuit, the first output port of the second booster circuit is connected with the first output port of the external battery pack, and the second output port of the second booster circuit is connected with the second input port of the external battery pack.
Optionally, the third input circuit 103 includes: a third resistor R3, a third switch K3, a third detection circuit, a sixth switch K6, a third power factor correction circuit and a third booster circuit, wherein one end of the third resistor R3 is connected with an external third input interface L3, one end of the third switch K3 is connected with the second detection circuit, the other end of the third switch K3 is connected with the other end of the third resistor R3, the other end of the third resistor R3 is connected with a first selection terminal 62 of the sixth switch K6, a first input port of the third power factor correction circuit is connected with a neutral port N, a fixed end 61 of the sixth switch K6 is connected with a second input port of the third power factor correction circuit, a fixed end 61 of the sixth switch K6 is connected with a second selection terminal 63 of the sixth switch K6, a first output port of the third power factor correction circuit is connected with a first input port of the third booster circuit, a second output port of the third power factor correction circuit is connected with a second input port of the third booster circuit, the first output port of the third booster circuit is connected with the first output port of the external battery pack, and the second output port of the third booster circuit is connected with the second input port of the external battery pack.
Optionally, the parallel connection of the first input circuit 101, the second input circuit 102, and the third input circuit 103 includes: the second selection terminal 43 of the fourth switch K4 is connected to the fixed terminal 51 of the fifth switch K5, the second selection terminal 53 of the fifth switch K5 is connected to the fixed terminal 61 of the sixth switch K6, and the second selection terminal 63 of the sixth switch K6 is connected to the fixed terminal 41 of the fourth switch K4.
Optionally, the three-phase charging circuit compatible with single-phase input further includes: the first switch K1, the second switch K2 and the third switch K3 are all normally open relays.
Optionally, the three-phase charging circuit compatible with single-phase input further includes: the fourth switch K4, the fifth switch K5 and the sixth switch K6 are all normally closed relays.
Optionally, the three-phase charging circuit compatible with single-phase input further includes: the first resistor, the second resistor and the third resistor are pre-charging resistors, wherein the pre-charging resistors comprise one or more than one of the following resistors: aluminum shell resistor, thermistor, power resistor, cement resistor.
The compatible single-phase input's three-phase charging circuit that this application embodiment provided has three kinds of operating condition, specifically as follows:
when the first state is that the external first input port L1, the external second input port L2 and the external third input port L3 all detect the input voltage, the fourth switch K4, the fifth switch K5 and the sixth switch K6 are all closed, that is, the fixed end 41 of the fourth switch K4 is connected with the first selection end 42 of the fourth switch K4, the fixed end 51 of the fifth switch K5 is connected with the first selection end 52 of the fifth switch K5, the fixed end 61 of the sixth switch K6 is connected with the first selection end 62 of the sixth switch K6, the first input circuit 101, the second input circuit 102 and the third input circuit 103 form three independent working branches to start the pre-charging, when the pre-charging of the first input circuit 101, the second input circuit 102 and the third input circuit 103 is completed, the first switch K1, the second switch K2 and the third switch K3 are closed, and when the first switch 101, the second input circuit 102 and the third input circuit 103 are normally working branches, outputting the maximum power voltage;
the second state is that any one of the external first input port L1, the external second input port L2, and the external third input port L3 detects an input voltage.
In an embodiment provided by the embodiment of the present application, when the external first input port L1 has an input voltage, the fourth switch K4 is closed, that is, the fixed end 41 of the fourth switch K4 is connected to the first selection end 42 of the fourth switch K4, the voltage of the external first input port L1 precharges the first input circuit 101, the second input circuit 102 is charged through the normally closed contact of the fourth switch K4 and the sixth switch K6, the third input circuit 103 is precharged through the normally closed contact of the fourth switch K4, the fifth switch K5 and the sixth switch K6, and after the precharge is completed, the first switch K1 is closed, and the first input circuit 101, the second input circuit 102 and the third input circuit 103 share the input voltage of the external first input port L1 and operate normally at the same time to output the maximum power;
in an embodiment provided by the embodiment of the present application, when the external second input port L2 has an input voltage, the fifth switch K5 is closed, that is, the fixed end 51 of the fifth switch K5 is connected to the first selection end 52 of the fifth switch K5, the voltage of the external second input port L2 precharges the second input circuit 102, the first input circuit 101 is charged through the normally closed contacts of the fifth switch K5 and the fourth switch K4, the third input circuit 103 is precharged through the normally closed contacts of the fifth switch K5, the fourth switch K4 and the sixth switch K6, after the precharge is completed, the second switch K2 is closed, and the first input circuit 101, the second input circuit 102 and the third input circuit 103 share the input voltage of the external second input port L2 and simultaneously operate normally to output a maximum power;
in an embodiment provided by the embodiment of the present application, when the external third input port L3 has an input voltage, the sixth switch K6 is closed, that is, the fixed end 61 of the sixth switch K6 is connected to the first selection end 62 of the sixth switch K6, the voltage of the external third input port L3 precharges the third input circuit 103, the second input circuit 102 is charged through the normally closed contacts of the sixth switch K6 and the fifth switch K5, the first input circuit 101 is precharged through the normally closed contacts of the sixth switch K6, the fifth switch K5 and the fourth switch K4, and after the precharge is completed, the third switch K3 is closed, and the first input circuit 101, the second input circuit 102 and the third input circuit 103 share the input voltage of the external third input port L3 and simultaneously operate normally to output the maximum power.
The third state is that any two ports of the external first input port L1, the external second input port L2, and the external third input port L3 detect an input voltage.
In one embodiment provided in the embodiment of the present application, when the external first input port L1 and the external second input port L2 have input voltages, the fourth switch K4 and the fifth switch K5 are both closed, that is, the fixed end 41 of the fourth switch K4 is connected to the first selection end 42 of the fourth switch K4, the fixed end 51 of the fifth switch K5 is connected to the first selection end 52 of the fifth switch K5, the voltage of the external first input port L1 precharges the first input circuit 101, the third input circuit 103 is precharged through the normally closed contact points of the fourth switch K4 and the sixth switch K6, the voltage of the external second input port L2 precharges the second input circuit 102, after precharge, the first switch K1 and the second switch K2 are closed, the first input circuit 101 and the third input circuit 103 share the input voltage of the external first input port L1 and operate normally at the same time, the second input circuit 102 works normally and outputs maximum power;
in one embodiment provided in the embodiments of the present application, when the external first input port L1 and the external third input port L3 have input voltages, the fourth switch K4 and the sixth switch K6 are both closed, that is, the fixed end 41 of the fourth switch K4 is connected to the first selection end 42 of the fourth switch K4, the sixth switch K6 is closed, that is, the fixed end 61 of the sixth switch K6 is connected to the first selection end 62 of the sixth switch K6, the voltage of the external first input port L1 precharges the first input circuit 101, the voltage of the external third input port L3 precharges the third input circuit 103, the second input circuit 102 is precharged through the normally closed contact of the sixth switch K6 and the fifth switch K5, after precharging is completed, the first switch K1 and the third switch K3 are closed, the first input circuit 101 operates normally, the third input circuit 103 and the second input circuit 102 share the third input port L3 and operate normally, outputting the maximum power;
in one embodiment provided in the embodiments of the present application, when the external second input port L2 and the external third input port L3 have input voltages, the fifth switch K5 and the sixth switch K6 are both closed, that is, the fixed end 51 of the fifth switch K5 is connected to the first selection end 52 of the fifth switch K5, the sixth switch K6 is closed, that is, the fixed end 61 of the sixth switch K6 is connected to the first selection end 62 of the sixth switch K6, the voltage of the external second input port L2 precharges the second input circuit 102, the first input circuit 101 is precharged through the normally closed contact of the fifth switch K5 and the fourth switch K4, the voltage of the external third input port L3 precharges the third input circuit 103, after precharge, the second switch K2 and the third switch K3 are closed, the third input circuit 103 operates normally, the second input circuit 102 and the first input circuit 101 share the second input port L35 and the external input voltage 2 and operates normally, and outputting the maximum power.
Referring to fig. 2, fig. 2 is a schematic structural diagram of another single-phase-input-compatible three-phase charging circuit according to an embodiment of the present disclosure, and as shown in fig. 2, the circuit includes a first input circuit 101, a second input circuit 102, and a third input circuit 103.
Optionally, a first input port of the first input circuit 101 is connected to the neutral port N, a second input port of the first input circuit 101 is connected to the external first input port L1, a first output port of the first input circuit 101 is connected to the first input port of the external battery pack, and a second output port of the first input circuit 101 is connected to the second input port of the external battery pack.
Optionally, a first input port of the second input circuit 102 is connected to the neutral port N, a second input port of the second input circuit 102 is connected to an external second input port L2, a first output port of the second input circuit 102 is connected to a first input port of an external battery pack, and a second output port of the second input circuit 102 is connected to a second input port of the external battery pack.
Optionally, a first input port of the third input circuit 103 is connected to the neutral port N, a second input port of the third input circuit 103 is connected to an external third input port L3, a first output port of the third input circuit 103 is connected to a first input port of an external battery pack, and a second output port of the third input circuit 103 is connected to a second input port of the external battery pack.
Optionally, the first input circuit 101, the second input circuit 102, and the third input circuit 103 are connected to each other.
It can be seen that, this application forms three work branch road through connecting three input circuit, and when arbitrary branch road had input voltage, three work branch road began work simultaneously, and the sum of the output power of three work branch road is whole circuit's final output power, has improved output power, and application scope is wide.
Referring to fig. 3, fig. 3 is a schematic circuit structure diagram of a first input circuit 101 according to an embodiment of the present disclosure, and as shown in fig. 3, the first input circuit 101 includes: the circuit comprises a first resistor R1, a first switch K1, a first detection circuit, a fourth switch K4, a first power factor correction circuit and a first boosting circuit.
Furthermore, one end of a first resistor R1 is connected to an external first input interface L1, one end of a first switch K1 is connected to the first detection circuit, the other end of the first switch K1 is connected to the other end of the first resistor R1 and a first selection terminal 42 of a fourth switch K4, a first input port of the first power factor correction circuit is connected to the neutral port N, a fixed terminal 41 of a fourth switch K4 is connected to a second input port of the first power factor correction circuit, a fixed terminal 41 of the fourth switch K4 is connected to a second selection terminal 43 of the fourth switch K4, a first output port of the first power factor correction circuit is connected to a first input port of the first boost circuit, a second output port of the first power factor correction circuit is connected to a second input port of the first boost circuit, a first output port of the first boost circuit is connected to a first output port of an external battery pack, and the second output port of the first booster circuit is connected with the second input port of the external battery pack.
Referring to fig. 4, fig. 4 is a schematic circuit structure diagram of the second input circuit 102 according to the embodiment of the present application, and as shown in fig. 4, the second input circuit 102 includes: the power factor correction circuit comprises a second resistor R2, a second switch K2, a second detection circuit, a fifth switch K5, a second power factor correction circuit and a second boosting circuit.
Furthermore, one end of a second resistor R2 is connected to an external second input interface L2, one end of a second switch K2 is connected to the second detection circuit, the other end of the second switch K2 is connected to the other end of the second resistor R2 and a first selection terminal 52 of a fifth switch K5, a first input port of the second power factor correction circuit is connected to the neutral port N, a fixed terminal 51 of the fifth switch K5 is connected to a second input port of the second power factor correction circuit, a fixed terminal 51 of the fifth switch K5 is connected to a second selection terminal 53 of the fifth switch K5, a first output port of the second power factor correction circuit is connected to a first input port of the second boost circuit, a second output port of the second power factor correction circuit is connected to a second input port of the second boost circuit, a first output port of the second boost circuit is connected to a first output port of the external battery pack, and the second output port of the second booster circuit is connected with the second input port of the external battery pack.
Referring to fig. 5, fig. 5 is a schematic circuit structure diagram of a third input circuit 103 according to an embodiment of the present disclosure, and as shown in fig. 5, the third input circuit 103 includes: a third resistor R3, a third switch K3, a third detection circuit, a sixth switch K6, a third power factor correction circuit and a third boost circuit.
Furthermore, one end of a third resistor R3 is connected to a third external input interface L3, one end of a third switch K3 is connected to the second detection circuit, the other end of the third switch K3 is connected to the other end of the third resistor R3 and a first selection terminal 62 of a sixth switch K6, a first input port of the third power factor correction circuit is connected to the neutral port N, a fixed terminal 61 of the sixth switch K6 is connected to a second input port of the third power factor correction circuit, a fixed terminal 61 of the sixth switch K6 is connected to a second selection terminal 63 of the sixth switch K6, a first output port of the third power factor correction circuit is connected to a first input port of the third boost circuit, a second output port of the third power factor correction circuit is connected to a second input port of the third boost circuit, and a first output port of the third boost circuit is connected to a first output port of the external battery pack, and a second output port of the third booster circuit is connected with a second input port of the external battery pack.
The embodiment of the application also provides a compatible single-phase input three-phase charging device, which comprises the compatible single-phase input three-phase input charging circuit.
The embodiment of the application also provides vehicle-mounted equipment which comprises the compatible single-phase input three-phase charging device.
It should be noted that, for the sake of simplicity, the embodiments of the present application are described as a series of acts or combinations, but those skilled in the art should understand that the present application is not limited by the described order of acts, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, 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 some interfaces, devices or units, and may be an electric 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 application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application with specific examples, and the above description of the embodiments is only provided to help understand the present application and its core ideas; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific implementation and application scope, and in view of the above, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A single-phase input compatible three-phase input charging circuit, the circuit comprising: a first input circuit, a second input circuit, a third input circuit;
the first input circuit, the second input circuit and the third input circuit are connected in parallel, and the first input circuit, the second input circuit and the third input circuit are connected with the same zero line.
2. The circuit of claim 1, wherein the first input circuit comprises: the circuit comprises a first resistor, a first switch, a first detection circuit, a fourth switch, a first power factor correction circuit and a first booster circuit;
one end of the first resistor is connected with an external first input interface, one end of the first switch is connected with the first detection circuit, the other end of the first switch is connected with the other end of the first resistor and the first selection end of the fourth switch, the first input port of the first power factor correction circuit is connected with the zero line, the fixed end of the fourth switch is connected with the second input port of the first power factor correction circuit, a first output port of the first power factor correction circuit is connected with a first input port of the first boost circuit, a second output port of the first power factor correction circuit is connected with a second input port of the first boost circuit, the first output port of the first booster circuit is connected with the first output port of the external battery pack, and the second output port of the first booster circuit is connected with the second input port of the external battery pack.
3. The circuit of claim 1, wherein the second input circuit comprises: the second resistor, the second switch, the second detection circuit, the fifth switch, the second power factor correction circuit and the second booster circuit;
one end of the second resistor is connected with an external second input interface, one end of the second switch is connected with the second detection circuit, the other end of the second switch is connected with the other end of the second resistor and the first selection end of the fifth switch, a first input port of the second power factor correction circuit is connected with the zero line, a fixed end of the fifth switch is connected with a second input port of the second power factor correction circuit, a first output port of the second power factor correction circuit is connected with a first input port of the second boost circuit, a second output port of the second power factor correction circuit is connected with a second input port of the second boost circuit, a first output port of the second boost circuit is connected to a first output port of the external battery pack, and a second output port of the second booster circuit is connected with a second input port of the external battery pack.
4. The circuit of claim 1, wherein the third input circuit comprises: the third resistor, the third switch, the third detection circuit, the sixth switch, the third power factor correction circuit and the third booster circuit;
one end of the third resistor is connected with an external third input interface, one end of the third switch is connected with the second detection circuit, the other end of the third switch is connected with the other end of the third resistor and the first selection end of the sixth switch, a first input port of the third power factor correction circuit is connected with the zero line, a fixed end of the sixth switch is connected with a second input port of the third power factor correction circuit, a first output port of the third power factor correction circuit is connected to a first input port of the third boost circuit, a second output port of the third power factor correction circuit is connected to a second input port of the third boost circuit, a first output port of the third boost circuit is connected to a first output port of the external battery pack, and a second output port of the third booster circuit is connected with a second input port of the external battery pack.
5. The circuit of claim 1, wherein the first input circuit, the second input circuit, and the third input circuit connected in parallel comprises:
the second of fourth switch select the end with the stiff end of fifth switch is connected, the second of fifth switch select the end with the stiff end of sixth switch is connected, the second of sixth switch select the end with the stiff end of fourth switch is connected.
6. The circuit of claim 1, wherein the first switch, the second switch, and the third switch are all normally open relays.
7. The circuit of claim 1, wherein the fourth switch, the fifth switch, and the sixth switch are all normally closed relays.
8. The circuit of claim 1, wherein the first resistor, the second resistor, and the third resistor are all pre-charge resistors, and wherein the pre-charge resistors comprise one or more of: aluminum shell resistor, thermistor, power resistor, cement resistor.
9. A single-phase-input-compatible three-phase input charging device, comprising the single-phase-input-compatible three-phase input charging circuit according to any one of claims 1 to 8.
10. An in-vehicle apparatus characterized by comprising the single-phase-input-compatible three-phase input charging device according to claim 9.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/097537 WO2021012224A1 (en) | 2019-07-24 | 2019-07-24 | Three-phase charging circuit compatible with single-phase input, and related device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111527006A true CN111527006A (en) | 2020-08-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980006631.5A Pending CN111527006A (en) | 2019-07-24 | 2019-07-24 | Three-phase charging circuit compatible with single-phase input and related equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111527006A (en) |
| WO (1) | WO2021012224A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102638037A (en) * | 2012-03-16 | 2012-08-15 | 华为技术有限公司 | Power supply control method and power supply control system of communication equipment as well as power supply system |
| CN206490487U (en) * | 2017-02-09 | 2017-09-12 | 上海欣锐电控技术有限公司 | A kind of Vehicular charger and on-board charging system |
| CN211032210U (en) * | 2019-07-24 | 2020-07-17 | 深圳欣锐科技股份有限公司 | Three-phase charging circuit compatible with single-phase input, charging device and vehicle-mounted equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202405781U (en) * | 2011-11-30 | 2012-08-29 | 星辰先创通信系统(厦门)有限公司 | Automatic three-phase/single-phase power supply switching device for special alternating-current equipment |
| JP6190224B2 (en) * | 2013-09-19 | 2017-08-30 | 株式会社エヌエフ回路設計ブロック | Power storage system |
-
2019
- 2019-07-24 CN CN201980006631.5A patent/CN111527006A/en active Pending
- 2019-07-24 WO PCT/CN2019/097537 patent/WO2021012224A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102638037A (en) * | 2012-03-16 | 2012-08-15 | 华为技术有限公司 | Power supply control method and power supply control system of communication equipment as well as power supply system |
| CN206490487U (en) * | 2017-02-09 | 2017-09-12 | 上海欣锐电控技术有限公司 | A kind of Vehicular charger and on-board charging system |
| CN211032210U (en) * | 2019-07-24 | 2020-07-17 | 深圳欣锐科技股份有限公司 | Three-phase charging circuit compatible with single-phase input, charging device and vehicle-mounted equipment |
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| Publication number | Publication date |
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| WO2021012224A1 (en) | 2021-01-28 |
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Application publication date: 20200811 |