WO2012160660A1 - 充電システム - Google Patents
充電システム Download PDFInfo
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- WO2012160660A1 WO2012160660A1 PCT/JP2011/061943 JP2011061943W WO2012160660A1 WO 2012160660 A1 WO2012160660 A1 WO 2012160660A1 JP 2011061943 W JP2011061943 W JP 2011061943W WO 2012160660 A1 WO2012160660 A1 WO 2012160660A1
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- winding
- charging
- circuit
- power source
- secondary battery
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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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
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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
- B60L53/12—Inductive 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
- B60L53/10—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
- B60L53/20—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 converters located in the vehicle
- B60L53/22—Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
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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
- B60L53/35—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
- B60L53/36—Means for automatic or assisted adjustment of the relative position of charging devices and vehicles by positioning the vehicle
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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
- B60L53/65—Monitoring or controlling charging stations involving identification of vehicles or their battery types
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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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
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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
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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
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
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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
- B60L2210/00—Converter types
- B60L2210/20—AC to AC converters
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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
- B60L2210/00—Converter types
- B60L2210/30—AC to DC converters
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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
- B60L2210/00—Converter types
- B60L2210/40—DC to AC converters
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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
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/40—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries adapted for charging from various sources, e.g. AC, DC or multivoltage
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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
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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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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- 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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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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
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
- Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing
Definitions
- the present invention relates to a charging system for charging a secondary battery or a capacitor in a device using a secondary battery or a capacitor as a drive source, such as an electric vehicle.
- a typical charging system there is a charging system that is installed on a vehicle and is connected to a power source using a plug for charging.
- this charging method is referred to as a plug-in charging method.
- the plug-in charging method is classified into a normal charging device and a quick charging device having a power supply capacity larger than that of normal charging depending on the power supply capacity.
- Patent Document 1 the secondary core of the insulating transformer, the winding, and the rectifier circuit are shared by the normal charging circuit and the quick charging circuit, so that both the normal charging and the quick charging can be supported.
- charging can be performed anywhere where a power source is provided, but when charging, the operator needs to connect the plug and the power source, which makes the work complicated. There's a problem.
- a dummy core is attached to the detachable transformer during normal charging, and a dummy core is removed during quick charging, and a quick charging paddle (including a primary coil and a detachable core) is attached. is necessary.
- this charging method is referred to as a non-contact charging method.
- the non-contact charging method has a complicated device and requires a dedicated charging device, so that there is a problem that a charging place is limited as compared with the plug-in charging method.
- Patent Document 2 is disclosed as a charging system that solves this problem.
- a charging system corresponding to both a plug-in charging system and a non-contact charging system is disclosed in the first embodiment shown in FIG.
- both systems are contactless charging
- both systems are plug-in charging.
- Embodiment 1 shown in FIG. 1 of Patent Document 2 a plug-in charging circuit and a non-contact charging circuit are provided, and convenience is improved so that charging can be performed from either charging device.
- JP 2010-213535 A Japanese Patent Laid-Open No. 11-252810
- Patent Document 1 The technology described in Patent Document 1 is compatible with both normal charging and rapid charging methods, and is designed to reduce the size and cost of the charging device.
- the charging system of Patent Document 1 does not correspond to the non-contact charging method, and not only does the operator need to connect the plug and the power supply when charging, but also the replacement of the detachable transformer unit. There is a problem that complicated work is required.
- Patent Document 2 Although the technology described in the first embodiment of Patent Document 2 is compatible with both the plug-in charging system and the non-contact charging system, a transformer is required for each of the plug-in charging circuit and the non-contact charging circuit. In addition, there is a problem that the two types of circuits are configured independently, and the charging device is large and expensive.
- An object of the present invention is to improve the convenience of the user in a charging system that can be charged by both charging methods of the plug-in charging method and the non-contact charging method.
- an object is to simplify the configuration by sharing an electric circuit between two charging systems, and to reduce the size and cost of the apparatus.
- a secondary battery or a capacitor charged with electric power from a first power source via a first / second winding of a transformer supplied via a wired (plug-in) connector;
- the third winding is supplied with electric power from the second power source and the relative position of the transformer with respect to the second winding is variable, and the second winding approaches, so that the third winding can be magnetically coupled to the second winding.
- the charging power is supplied to the secondary battery or capacitor via the magnetic coupling between the first and second windings.
- charging power is supplied to the secondary battery through magnetic coupling of the third winding and the second winding.
- an AC-AC converter connected between the first power supply and a first winding of the transformer is provided, and the wired connector is connected to the first power supply and the AC- Arrange it so that it can be connected to or disconnected from the AC converter.
- the transformer including the first and second windings and the secondary battery or capacitor are mounted on a vehicle and supply power to the first winding.
- the first power source is disposed at a first charging station on the ground
- the second power source and the third winding are disposed at a second charging station on the ground
- the vehicle is a predetermined one of the first charging station.
- the first power source and the first winding can be connected using the wired connector when the vehicle stops at the position, and the third when the vehicle stops at a predetermined position of the second charging station.
- the winding and the second winding are configured to be magnetically coupled.
- a plug-in charging circuit and a non-contact charging circuit can be configured by moving a device provided with a secondary battery or a capacitor to two predetermined positions, respectively, which is convenient for the user. It is possible to construct a charging system with improved performance.
- the secondary and subsequent circuits of the transformer can be shared by the plug-in charging circuit and the non-contact charging circuit, so that the charging system can be reduced in size and cost. it can.
- FIG. 1 is a schematic circuit configuration diagram of a charging system according to Embodiment 1 of the present invention.
- 1 is an exploded perspective view illustrating a configuration of a first embodiment of an insulating transformer that can be employed in the present invention. Sectional drawing explaining the coil structure of 1st Embodiment of an insulation transformer similarly. The exploded perspective view explaining 2nd Embodiment of the insulation transformer which can be employ
- FIG. 1 is a schematic circuit configuration diagram of a charging system according to Embodiment 1 of the present invention.
- This charging device 1 is connected between a power source 2 and a power source 3 and a secondary battery 4 connected to a load 5, by plug-in charging from the power source 2 and by non-contact charging from the power source 3, respectively.
- the secondary battery 4 can be charged.
- the description will be given while illustrating a charging system for an in-vehicle secondary battery of an electric vehicle.
- the charging device 1 includes a plug-in charging primary circuit 6, switches SW11 and SW12, an insulating transformer Tr12 (windings N1 and N2), a charging secondary circuit 7 and a plug-in charging at the first charging station CS1. And a smoothing capacitor C22, and control means 9, 10 and a communication device 12.
- the insulating transformer Tr12 magnetically couples the windings N1 and N2 with the core T1. In the case of an electric vehicle, these circuits, the secondary battery 4 and the load 5 are mounted on the vehicle.
- the power source 2 constituting the first charging station CS1 and the plug-in charging primary circuit 6 can be connected and disconnected by the plug-in connector PC1.
- the plug-in connector may be arranged at the position of the reference numeral PC2 shown in the figure.
- the plug-in charging primary circuit 6 and the switches SW11 and SW12 are controlled by the control means 9 and the control means 10.
- the second charging station CS2 includes a non-contact charging primary circuit 8, switches SW31 and SW32, and a part of the insulating transformer Tr23 (core T2, Winding N3), control means 11, and communication device 13 are provided.
- the non-contact charging primary circuit 8 and the switches SW31 and SW32 are controlled by the control means 11.
- the control means 10 and the control means 11 are wirelessly connected by the in-vehicle communication device 12 and the communication device 13 of the second charging station CS2.
- the insulating transformer Tr23 magnetically couples the winding N3 of the charging station CS2 and the on-vehicle winding N2 with the cores T1 and T2 so as not to contact each other. Charging power can be transmitted from winding N3 to winding N2.
- the power source 2 and the power source 3 may be the same power source, but when applied to an electric vehicle charging system, the power source 2 of the first charging station CS1 and the second power source 3 are connected.
- the second charging station CS2 that is included is often installed at a remote location.
- the secondary battery 4 is connected between the charging device 1 and the load 5.
- a capacitor such as an electric double layer capacitor or a lithium ion capacitor is connected between the charging device 1 and the load 5. It is good also as a structure which connected.
- FIGS. 2 and 3 are an exploded perspective view and a cross-sectional view showing the configuration of the first embodiment of the insulating transformer Tr12 and the non-contact charging transformer Tr23 according to the first embodiment of the present invention.
- the core 14 is a square ferrite core, and has a prismatic leg at the center and also has a leg at the peripheral part, and when viewed from the opening, the inside is recessed into a donut shape.
- the winding N1 is spirally wound around a hollow portion centered on the center leg of the core 14 to form a primary portion of the transformer Tr12.
- the winding N2 is wound around the core 14 so as to overlap the winding N1, and forms a secondary part of the insulating transformer Tr12 and a secondary part of the non-contact charging transformer Tr23.
- An insulating material 15 is inserted between the winding N1 and the winding N2 in order to maintain insulation between the windings, and a core head is provided at the center leg of the core 14 to enhance the magnetic coupling between the windings N1 and N2. 16 is installed.
- the core 17 is a square ferrite core and has a shape having legs only at the peripheral edge of the core. Winding N3 is spirally wound around the hollow portion of core 17 to form the primary part of non-contact charging transformer Tr23.
- a bobbin may be used when winding the windings N1 to N3 and fixing them to the core.
- An enameled wire (single wire) is used for the windings N1 to N3, but a litz wire may be used.
- the cores 14 and 17 and the windings N1 to N3 are square, but may be circular or triangular. About a core material, you may use other magnetic bodies, such as an amorphous and a silicon steel plate. In the first embodiment, the core 14 and the core 17 have different shapes, but may have the same shape.
- the operation of charging the secondary battery 4 from the power source 2 through the plug-in charging primary circuit 6, the insulating transformer Tr12, and the charging secondary circuit 7 is referred to as plug-in charging. Further, the operation of charging the secondary battery 4 from the power source 3 through the contactless charging primary circuit 8, the contactless charging transformer Tr23, and the charging secondary circuit 7 is referred to as contactless charging.
- the switches SW11 and SW12 are kept on, and the switches SW31 and SW32 are kept off. By turning off the switches SW31 and SW32, the influence on the non-contact charging primary circuit 8 is eliminated.
- the vehicle When applied to a charging system for an electric vehicle or the like, the vehicle is stopped at a predetermined position of the first charging station CS1, and a ground power source 2 and an in-vehicle plug-in charging primary circuit are connected by a plug-in connector PC1. 6 is connected. In this case, the second charging station CS2 does not exist nearby.
- the control means 10 detects the state of the secondary battery 4 and the load 5, determines the command value of the plug-in charging primary circuit 6, and transmits the command value to the control control means 9.
- the control means 9 switches the plug-in charging primary circuit 6 according to the command value received from the control means 10 and applies an AC voltage to the winding N1.
- the charging secondary circuit 7 rectifies the induced voltage generated in the winding N ⁇ b> 2 and smoothes it with the smoothing capacitor C ⁇ b> 22 to charge the secondary battery 4.
- Non-contact charging operation Next, the non-contact charging operation of the charging device 1 according to the first embodiment will be described.
- the vehicle is stopped at a predetermined position of the non-contact charging station CS2 which is the second charging station, whereby the core T1 and the winding N2 of the insulating transformer Tr12 are connected to the second charging station.
- the core T2 and the winding N3 in the charging station CS2 are brought close to each other, and the winding N3 and the winding N2 are magnetically coupled.
- the switches SW11 and SW12 are kept in the off state, and the switches SW31 and SW32 are turned on. By turning off SW11 and SW12, the influence on the plug-in charging primary circuit 6 is eliminated.
- the control means 10 detects the state of the secondary battery 4 and the load 5, determines a command value for the non-contact charging primary circuit 8, and transmits the command value to the control means 11 via the communication device 12 and the communication device 13. To do.
- the control means 11 performs the switching operation of the non-contact charging primary circuit 8 according to the command value received from the control means 10 and applies an AC voltage to the primary winding N3 of the insulating transformer Tr23.
- the charging secondary circuit 7 rectifies the voltage generated in the secondary winding N2, and charges the secondary battery 4 via the smoothing capacitor C22. At this time, the control means 10 determines the non-contact charging primary circuit 8 and the command value for the switching operation.
- the switches SW11 and SW12 are provided between the plug-in charging primary circuit 6 and the winding N1, and the switches SW31 and SW32 are provided between the contactless charging primary circuit 8 and the winding N2. These switches may be omitted.
- the communication devices 12 and 13 can also have a function of detecting the position between the primary and secondary sides of the insulation transformer Tr23 for non-contact charging and communicating that a normal magnetic coupling state has been established.
- a plug-in charging circuit and a non-contact charging circuit can be configured, respectively. Convenience can be improved.
- a plug-in charging circuit and a non-contact charging circuit a circuit after the secondary side of the insulating transformer, that is, the core T1 of the insulating transformer, the secondary winding N2, the charging secondary circuit 7, and the smoothing capacitor C22.
- the control means 10 can be shared, and the secondary battery charging system can be reduced in size and cost.
- FIGS. 4 and 5 are an exploded perspective view for explaining the configuration of the second embodiment of the insulating transformer of the present invention and a cross-sectional view for explaining the coil configuration.
- the core 114 is a square ferrite core, and has a prismatic leg at the center and a leg at the peripheral part, and the inside is recessed in a donut shape when viewed from the opening.
- the center leg has a shape with a depressed center.
- the winding N1 and the winding N2 are spirally wound on the hollow portion between the central leg and the peripheral leg of the core 114, and the winding N1 is a primary part of the insulating transformer Tr12. Winding N2 forms the secondary part of insulating transformer 1 and the secondary part of transformer Tr23 for non-contact charging.
- the core 117 is a rectangular flat ferrite core. Winding N3 is spirally wound on one surface of core 117 to form the primary part of non-contact charging transformer Tr23.
- the communication device 112 is installed in the leg depression at the center of the core 114, and the communication device 113 is installed in the center of the core 117. According to the present embodiment of the insulating transformer, the core and the communication device can be integrated, so that the charging device can be reduced in size.
- FIG. 6 is an exploded perspective view illustrating the configuration of the third embodiment of the insulating transformer of the present invention.
- the core 214 and the core 217 are both rectangular flat ferrite cores, and the winding N1 and the winding N2 are wound around the core 214, and the winding N1 serves as a primary part of the insulating transformer Tr12 and the winding N2.
- Winding N3 is wound around core 217 and forms the primary part of non-contact charging transformer Tr23.
- FIG. 7 is a cross-sectional view of the insulating transformer Tr12 and the non-contact charging transformer Tr23 according to the third embodiment that can also be applied to the present invention.
- the surfaces of the winding N1, the winding N2, and the winding N3 are covered with an insulator 215 to ensure insulation between the primary and secondary sides of the insulating transformer Tr12.
- the parasitic capacitance between the primary and secondary can be reduced by using a low dielectric constant insulator.
- the currents flowing in the winding N1 and the winding N2 are greatly different, only the thickness of the insulator 215a of the small current side winding is increased, and the thickness of the insulator 215b of the large current side winding is increased. By thinning, the heat dissipation of the winding can be enhanced while ensuring insulation between the primary and secondary sides of the insulating transformer 1.
- the insulating transformer can be configured with a simple structure, the cost of the charging device can be reduced.
- FIG. 8 is a specific circuit configuration diagram of the secondary battery charging system according to the second embodiment of the present invention.
- the charging device 101 is connected between the AC power source 2 and the AC power source 3 and the secondary battery 4, and the secondary battery 4 is plugged in from the AC power source 2 and contactlessly charged from the AC power source 3. Can be charged.
- This charging device 101 is basically the same as the embodiment of FIG. 1, but more specifically shows each circuit. The description overlapping with the description in FIG. 1 is omitted.
- the charging device 101 includes a plug-in charging primary circuit 106, switches SW11 and SW12, an insulating transformer Tr12 (windings N1 and N2), a charging secondary circuit 107, and a plug-in charging at the first charging station CS1.
- a smoothing capacitor C22 is provided, and control means 109 and 110 and a communication device 12 are provided.
- these circuits, the secondary battery 4 and the load 5 are mounted on the vehicle.
- the power source 2 constituting the first charging station CS1 and the plug-in charging primary circuit 106 can be connected and disconnected by the plug-in connector PC1.
- the first charging station CS1 may include the plug-in charging primary circuit 106, and the plug-in connector may be disposed at the position of the reference numeral PC2 shown in the drawing.
- Plug-in charging primary circuit 106 and switches SW11 and SW12 are controlled by the linkage of control means 109 and control means 110.
- the second charging station CS2 includes a second power source 3, a non-contact charging primary circuit 108, switches SW31 and SW32, and an insulating transformer Tr23.
- a part (core T2, winding N3), control means 111, and communication device 13 are provided.
- the plug-in charging primary circuit 106 receives the power of the AC power source 2 through the plug-in connector PC1, and outputs an AC-DC converter 21 that outputs a DC link voltage, and a DC that supplies an AC current from the link voltage to the winding N1.
- An AC inverter 22 is provided;
- the voltage of the AC power supply 2 is full-wave rectified by the bridge-connected rectifier diodes D1 to D4.
- the full-wave rectified voltage is input to a boost chopper configured by a boost inductor L1, a boost switching element Q1, a boost diode D10, and a DC link capacitor C11.
- the DC-AC inverter 22 includes switching elements S11 to S14 connected in a full bridge, a resonance capacitor Cr1 connected in series with the winding N1, and a resonance inductor Lr1.
- Antiparallel diodes D11 to D14 are connected to the switching elements S11 to S14, respectively.
- Switching element Q1, switching elements S11 to S14, and switches SW11 and SW12 are controlled by control means 109 and control means 110.
- the control means 109 is connected to a voltage sensor 31 that detects an input voltage, a voltage sensor 32 that detects a link voltage, a current sensor 33 that detects an input current from the AC power supply 2, and a control means 110.
- the charging secondary circuit 107 includes a resonant capacitor Cr2 connected in parallel with the winding N2 that compensates for the leakage inductance of the winding N2, a switch SW21 that disconnects the resonant capacitor Cr2, bridge-connected diodes D21 to D24, and a smoothing. And a capacitor C22.
- the current induced in the winding N2 is rectified by the bridge-connected diodes D21 to D24, and the smoothing capacitor C22 and the secondary battery 4 are charged.
- the resonant capacitor Cr2 is disconnected from the winding N2 by turning off the switch SW21 during the plug-in charging operation, and is connected in parallel with the winding N2 by turning on the switch SW21 during non-contact charging.
- the non-contact charging primary circuit 108 includes an AC-DC converter 23 that receives the power of the second AC power supply 3 and outputs a DC link voltage, and a DC-AC inverter that supplies an AC current from the link voltage to the winding N3. 24.
- the voltage of the AC power source 3 is full-wave rectified by rectifier diodes D6 to D9 connected in a bridge.
- the full-wave rectified voltage is input to a boost chopper configured by a boost inductor L3, a boost switching element Q3, a boost diode D30, and a DC link capacitor C31.
- the DC-AC inverter 24 includes switching elements S31 to S34 connected in a full bridge, a resonance capacitor Cr3 connected in series with the winding N3 and compensating for the leakage inductance of the winding N3, and a resonance inductor Lr3.
- Anti-parallel diodes D31 to D34 are connected to the switching elements S31 to S34, respectively.
- the controller 110 is connected to the voltage sensor 34 for detecting the voltage of the secondary battery 4, that is, the output voltage, the current sensor 35 for detecting the output current to the secondary battery 4, and the communication device 12.
- Switching element Q3, switching elements S31 to S34, and switches SW31 and SW32 in non-contact charging primary circuit 108 are controlled by the linkage of control means 110 and control means 111.
- a voltage sensor 36 that detects an input voltage, a voltage sensor 37 that detects a link voltage, a current sensor 38 that detects an input current from the AC power supply 3, and the communication device 13 are connected to the control unit 111.
- the power sources 2 and 3 are AC power sources, but may be DC power sources.
- the DC link capacitor C11 is connected from the DC power source without passing through the AC-DC converter 21 of the plug-in charging primary circuit 106 and the AC-DC converter 23 of the non-contact charging primary circuit 108.
- DC-AC inverters 22 and 24 may be connected via C31.
- the boost chopper in the AC-DC converters 21 and 23 is controlled using PWM control, and the DC-AC inverters 22 and 24 are controlled using PWM control, phase shift control, or frequency control.
- a parasitic diode of the MOSFET can be used as an antiparallel diode.
- FIG. 9 is a circuit diagram illustrating the plug-in charging operation of the charging apparatus 101 according to the second embodiment.
- the first AC power supply 2 and the AC-DC converter 21 in FIG. 8 are represented as a DC power supply V1.
- the plug-in charging operation will be described in detail with reference to FIG.
- (a) to (d) in FIG. 9 indicate modes a to d.
- Mode a First, in mode a, the switching elements S11 and S14 are on. A resonance current caused by the resonance capacitor Cr1 and the resonance inductor Lr1 flows from the power source V1 to the winding N1. At this time, a current flows through the winding N2 through a loop of the diode D24, the winding N2, and the diode D21, and the smoothing capacitor C22 and the secondary battery 4 are charged.
- Mode b When the charging of the resonance capacitor Cr1 is completed in the mode a state and the resonance current of the resonance capacitor Cr1 and the resonance inductor Lr1 has finished flowing, the mode b state is entered. In the mode b state, only the exciting current of the transformer flows through the winding N1. Since the voltage of the winding N2 is lower than the voltage of the smoothing capacitor C22, no current flows through the winding N2.
- Mode c When the switching elements S11 and S14 are turned off in the mode b, the mode c is entered. In mode c, the current flowing through the switching element flows through the diode and flows to the power source V1. At this time, the switching elements S12 and S13 are turned on. Since the voltage of the winding N2 is lower than the voltage of the smoothing capacitor C22, no current flows through the winding N2.
- Mode d When the current of the winding N1 is reversed, the mode d is entered. This mode d is a symmetrical operation of mode a. Thereafter, after returning to mode a after symmetric operation of mode b and mode c.
- FIG. 10 is a circuit diagram illustrating the non-contact charging operation of the charging device 101 according to the second embodiment.
- the AC power supply 3 and the AC-DC converter 23 of FIG. 8 are represented as a DC power supply V3.
- the non-contact charging operation will be described in detail with reference to FIG.
- (a) to (h) in FIG. 10 indicate modes a to h.
- Mode a First, in mode a, the switching elements S31 to S34 are in an off state, and a current flows through a loop of the diode D34, the resonance capacitor Cr3, the winding N3, and the resonance inductor Lr3. At this time, the current induced in the winding N2 charges the smoothing capacitor C22 and the secondary battery 4 via the diodes D22 and D23.
- Mode b In mode b, the current in winding N3 flows in the same loop as in mode a.
- the current in the winding N2 flows only in the loop of the winding N2 and the resonance capacitor Cr2 due to the resonance phenomenon between the inductance of the winding N2 and the resonance capacitor Cr2.
- Mode c In mode b, when the resonance current flowing through winding N3 is reversed, mode c is entered. In mode c, a current flows from the power source V3 through the loop of the switching element S31, the resonant inductor Lr3, the winding N3, the resonant capacitor Cr3, and the switching element 34. At this time, the current in the winding N2 flows only in the loop of the winding N2 and the resonance capacitor Cr2, as in the mode c.
- Mode f In mode f, the current in winding N3 flows in the same loop as in mode e.
- the current in the winding N2 flows only in the loop of the winding N2 and the resonance capacitor Cr2 due to the resonance phenomenon between the inductance of the winding N2 and the resonance capacitor Cr2. During this period, the switching elements S32 and S33 are turned on.
- Mode g When the current in the winding N3 is reversed in the mode f, the mode g is obtained. In mode g, a current flows from the power source V3 through the loop of the switching element S33, the resonance capacitor Cr3, the winding N3, the resonance inductor Lr3, and the switching element S32. The current in the winding N2 flows only in the loop of the winding N2 and the resonance capacitor Cr2, as in the mode f.
- Mode h In mode g, when the voltage of the resonant capacitor Cr21 reaches the voltage of the smoothing capacitor C22, the mode h is entered. In mode h, a current flows from the power source V3 through a loop of the switching element S33, the resonance inductor Lr3, the winding N3, the resonance capacitor Cr3, and the switching element S32. At this time, the current induced in the winding N2 flows to the load via the diodes D32 and D33.
- the operation modes of the plug-in charging operation and the non-contact charging operation in the charging device 101 according to the second embodiment of the present invention have been described.
- the mode may be different during contact charging operation.
- the resonance inductors Lr1 and Lr3 are connected in series with the windings N1 and N3.
- the leakage inductance of the windings N1 and N3 may be used.
- the resonance capacitor Cr1 is connected in series with the winding N1, it may be connected in parallel with the winding N1.
- the resonance inductor Lr1 is connected in series with the winding N1 closer to the switching element than the resonance capacitor Cr1 in order to prevent a short circuit between the DC link capacitor C11 and the resonance capacitor Cr1. Is connected.
- a resonance capacitor Cr3 is connected in series with the winding N3, and in order to compensate for the leakage inductance of the winding N2, a resonance capacitor Cr2 is connected in parallel with the winding N2.
- the resonance capacitor Cr3 is connected in parallel with the winding N3 and the resonance capacitor Cr2 is connected in series with the winding N2 the effect of compensating for the leakage inductance is obtained.
- the DC-AC inverters 22 and 24 are full bridge circuits, and the charging secondary circuit 107 is a bridge rectifier circuit, whereby a circuit configuration suitable for a high voltage system such as an electric vehicle can be obtained. .
- FIG. 11 is a specific circuit configuration diagram of the secondary battery charging system according to the third embodiment of the present invention.
- the charging device 201 is connected between the AC power source 2 and the AC power source 3 and the secondary battery 4, and the secondary battery 4 is respectively connected to the AC power source 2 by plug-in charging and from the AC power source 3 by non-contact charging. Can be charged.
- This charging device 201 is basically the same as that of the second embodiment shown in FIG. 8, and the description of the same parts as those in FIG. 8 is omitted.
- plug-in charging primary circuit 206 switches SW13 and SW14, insulating transformer Tr12 (windings N1 and N2), charging secondary circuit 207, smoothing capacitor C22, and control means 209, 210 and the communication device 12 are provided.
- these circuits, the secondary battery 4 and the load 5 are mounted on the vehicle.
- the power supply 2 constituting the first charging station CS1 and the plug-in charging primary circuit 206 can be connected and disconnected by the plug-in connector PC1.
- the first charging station CS1 may include the plug-in charging primary circuit 206, and the plug-in connector may be disposed at the position of the reference numeral PC2 illustrated.
- Plug-in charging primary circuit 206 and switches SW13 and SW14 are controlled by the linkage of control means 209 and control means 210.
- the second charging station CS2 includes a second power source 3, a non-contact charging primary circuit 208, switches SW31 and SW32, and an insulating transformer Tr23. A part (core T2, winding N3), control means 211, and communication device 13 are provided.
- the charging device 201 is different from the charging device 101 of the second embodiment (FIG. 8) in that the switches SW11 and SW12 are replaced with changeover switches SW13 and SW14, and the winding N1 and the winding N2 can be connected in parallel. Others are the same as in the second embodiment.
- the switches SW13 and SW14 are switched, the winding N1 is disconnected from the DC-AC inverter 22, and the winding N1 and the winding N2 are connected in parallel, so that the winding N1 is connected to the contactless charging transformer Tr23. It can be used as a secondary winding.
- the charging device 201 can divide the current flowing through the winding N2 between the winding N1 and the winding N2 during the non-contact charging operation, and reduce the current in the winding N2, thereby reducing the conduction loss. it can.
- the charging efficiency can be improved by switching the connection of the winding N1 during the non-contact charging operation.
- FIG. 12 is a specific circuit configuration diagram of the secondary battery charging system according to the fourth embodiment of the present invention.
- the charging device 301 is connected between the AC power source 2 and the AC power source 3 and the secondary battery 4, and is connected to the secondary battery 4 by plug-in charging from the AC power source 2 and non-contact charging from the AC power source 3, respectively. Can be charged.
- This charging device 301 is basically the same as that of the second embodiment in FIG. 8, and the description of the same parts as those in FIG. 8 is omitted.
- plug-in charging primary circuit 306 switches SW13 and SW14, insulating transformer Tr12 (windings N1 and N2), switches SW22 and SW23, and charging secondary A circuit 307 and a smoothing capacitor C22 are provided, and control units 309 and 310 and a communication device 12 are provided.
- these circuits, the secondary battery 4 and the load 5 are mounted on the vehicle.
- the power supply 2 constituting the first charging station CS1 and the plug-in charging primary circuit 306 can be connected and disconnected by the plug-in connector PC1.
- the first charging station CS1 may include the plug-in charging primary circuit 306, and the plug-in connector may be disposed at the position of the reference numeral PC2 illustrated.
- Plug-in charging primary circuit 306 and switches SW13 and SW14 are controlled by the linkage of control means 209 and control means 210.
- the second charging station CS2 includes a second power source 3, a non-contact charging primary circuit 308, switches SW31 and SW32, and an insulating transformer Tr23. A part (core T2, winding N3), control means 309 to 311 and communication device 13 are provided.
- This charging device 301 is different from the charging device 201 of the third embodiment (FIG. 11) in that switching switches SW22 and SW23 are newly provided between the winding N2 and the charging secondary circuit 307.
- the switches SW13 and SW14 are switched to disconnect the winding N1 from the DC-AC inverter 22, and the switches SW22 and SW23 are switched to connect the winding N1 and the winding N2 in series. Connecting.
- the turn ratio of the non-contact charge transformer Tr23 can be made variable, and the charge efficiency can be improved by optimizing the turn ratio of the non-contact charge transformer according to the state of charge.
- FIG. 13 is a circuit configuration diagram of the secondary battery charging system according to the fifth embodiment of the present invention.
- the charging device 401 is connected between the AC power source 2 and the AC power source 3 and the secondary battery 4, and the secondary battery 4 is respectively connected by plug-in charging from the AC power source 2 and non-contact charging from the AC power source 3. Can be charged.
- This charging device 401 is basically the same as that of the second embodiment in FIG. 8, and the description of the same parts as those in FIG. 8 is omitted.
- a plug-in charging primary circuit 406 switches SW11 and SW12, an insulating transformer Tr12 (windings N1 and N2), a charging secondary circuit 407, and a smoothing capacitor C22 are provided.
- control means 409 and 410 and the communication device 12 are provided. In the case of an electric vehicle, these circuits, the secondary battery 4 and the load 5 are mounted on the vehicle.
- the power supply 2 constituting the first charging station CS1 and the plug-in charging primary circuit 406 can be connected and disconnected by the plug-in connector PC1.
- the first charging station CS1 may be provided with the plug-in charging primary circuit 406, and the plug-in connector may be disposed at the position of the reference numeral PC2 shown in the drawing.
- Plug-in charging primary circuit 406 and switches SW11 and SW12 are controlled by the linkage of control means 409 and control means 410.
- the second charging station CS2 includes a second power source 3, a non-contact charging primary circuit 408, switches SW31 and SW32, and an insulating transformer Tr23. A part (core T2, winding N3), control means 411, and communication device 13 are provided.
- the charging device 401 includes changeover switches SW15 and SW16 between the connection terminals of the AC-DC converter 21 and the DC-AC inverter 22 of the plug-in charging primary circuit 406. The difference is that it is provided.
- the charging device 401 it is possible to perform a quick charging operation in which the winding N1 and the DC-AC inverter 22 that are not used at the time of non-contact charging are also used as a charging secondary circuit. Below, the operation
- the control unit 410 switches the contactless charging primary circuit 408 based on the information received from the control unit 411, and applies an AC voltage to the winding N3.
- the induced voltage generated in the winding N1 is rectified by the diodes D11 to D14 of the DC-AC inverter 22 and supplies power to the secondary battery 4.
- the induced voltage generated in the winding N ⁇ b> 2 is also rectified by the charging secondary circuit 407 to supply power to the secondary battery 4.
- the DC-AC inverter 22 is used as the charging secondary circuit in addition to the charging secondary circuit 407 at the time of non-contact charging, and the electric power from the AC power source 3 is The secondary battery 4 can be supplied.
- the converter capacity of the charging secondary circuit can be increased, and the charging time can be shortened by increasing the converter capacity of the non-contact charging primary circuit 408.
- the switching elements SW11 to SW14 of the DC-AC inverter 22 are switched to operate as a boost chopper, thereby causing the DC-AC
- the inverter 22 and the charging secondary circuit 407 can be used as a rectifier circuit to supply power from the AC power source to the secondary battery 4.
- the plug-in charging circuit can be used as a normal charging device and the non-contact charging circuit can be used as a quick charging device.
- FIG. 14 is a specific circuit configuration diagram of the secondary battery charging system according to the sixth embodiment of the present invention.
- the charging device 501 is connected between the AC power source 2 and the AC power source 3 and the secondary battery 4 in the same manner as the charging device 101 of the second embodiment (FIG. 8).
- the secondary batteries 4 can be charged from the power source 3 by non-contact charging, respectively.
- This charging device 501 is basically the same as that of the second embodiment in FIG. 8, and the description of the same parts as those in FIG. 8 is omitted.
- a plug-in charging primary circuit 506 switches SW11 and SW12, an insulating transformer Tr12 (windings N1, N21, N22), a charging secondary circuit 507, and a smoothing capacitor C22, control means 509 and 510, and a communication device 12.
- Tr12 windings N1, N21, N22
- Tr12 windings N1, N21, N22
- a charging secondary circuit 507 switches control means 509 and 510, and a communication device 12.
- the power supply 2 constituting the first charging station CS1 and the plug-in charging primary circuit 406 can be connected and disconnected by the plug-in connector PC1.
- the first charging station CS1 may include the plug-in charging primary circuit 506, and the plug-in connector may be disposed at the position of the reference numeral PC2 illustrated. Plug-in charging primary circuit 506 and switches SW11 and SW12 are controlled by the linkage of control means 509 and control means 510.
- the second charging station CS2 includes a second power source 3, a non-contact charging primary circuit 508, switches SW31 and SW32, and an isolation transformer.
- Tr23 core T2, winding N3
- control means 511 control means 511, and communication device 13 are provided.
- the resonance capacitor Cr1 is replaced with the resonance capacitors C12 and C13 as compared with the DC-AC inverter 22 of the second embodiment (FIG. 8). Further, the difference is that the switching elements S11 to S14 connected in the full bridge are replaced with only one arm switching elements S15 and S16 (with diodes D15 and D16).
- the winding N2 is replaced with windings N21 and N22, and the bridge-connected diodes D21 to D24 are replaced with diodes D25 and D26.
- This charging secondary circuit 507 is referred to as a center tap rectifier circuit.
- the center tap rectifier circuit one end of the winding N21 and one end of the winding N22 are connected, the other end of the winding N21 is connected to one end of the diode D25, and the other end of the winding N22 is connected to one end of the diode D26.
- the other end of the diode D25 and the other end of the diode D26 are connected to one end of the smoothing capacitor C22.
- a connection point between the windings N21 and N22 is connected to the other end of the smoothing capacitor C22.
- the non-contact charging primary circuit 508 has a DC-AC inverter 524 in a half-bridge configuration like the plug-in charging primary circuit 506.
- the AC-AC converter primary circuits 506 and 508 employ half bridge circuits, and the charging secondary circuit 507 employs a center tap rectifier circuit, thereby reducing the number of parts of the switching elements and diodes. Can do.
- FIG. 15 is a specific circuit configuration diagram of the secondary battery charging system according to the seventh embodiment of the present invention.
- the charging device 601 charges the secondary battery 4 by plug-in charging from the AC power source 2 and non-contact charging from the AC power source 3 in the same manner as the charging device 301 of the fourth embodiment (FIG. 12). Can do.
- This charging device 601 is the same as the fifth embodiment of FIG. 13 except for the circuit configuration in the non-contact charging primary circuit 608, and the description of the same parts as those in FIG. 13 is omitted.
- plug-in charging primary circuit 606 switches SW11 and SW12, insulation transformer Tr12 (windings N1 and N2), switches SW24 and SW25, charging secondary circuit 607,
- a smoothing capacitor C22 is provided, and control means 609 and 610 and a communication device 12 are provided.
- these circuits, the secondary battery 4 and the load 5 are mounted on the vehicle.
- the power supply 2 constituting the first charging station CS1 and the plug-in charging primary circuit 606 can be connected and disconnected by the plug-in connector PC1.
- the first charging station CS1 may include the plug-in charging primary circuit 606, and the plug-in connector may be disposed at the position of the reference numeral PC2 shown in the drawing.
- Plug-in charging primary circuit 606 and switches SW11 and SW12 are controlled by the linkage of control means 609 and control means 610.
- the second charging station CS2 includes A non-contact charging primary circuit 608, switches SW31 and SW32, a part of the insulation transformer Tr23 (core T2, winding N3), control means 611, and communication device 13 are provided.
- the AC-DC converter 23 in the contactless charging primary circuit 408 of the fifth embodiment is a PWM converter 623 configured by a boost inductor L4, switching elements S41 to S44, and a DC link capacitor C32.
- switches SW24 and SW25 are provided between the charging secondary circuit 607 and the winding N2.
- Antiparallel diodes D41 to D44 are connected to switching elements S41 to S44 in PWM converter 623, respectively.
- the switching elements S41 to S44 are controlled by the linkage of the control means 610 and the control means 611, and the switches SW24 and SW25 are controlled by the control means 610.
- the control means 611 is connected to a voltage sensor 40 that detects an input voltage, a voltage sensor 41 that detects a link voltage, a current sensor 42 that detects an input current from an AC power source, and the communication device 13.
- the PWM converter 623 and the DC-AC inverter 624 in the non-contact charging primary circuit 608 are switched, and the charging device 601 is bidirectionally operated, whereby the power of the secondary battery 4 is supplied to the AC power source 3. It is possible to supply.
- this operation is referred to as reverse power flow operation, and this reverse power flow operation will be described.
- the input of the charging device is a single phase, but by applying a three-phase PWM converter, it can also be applied to a three-phase input.
- the charging system can be a system that reversely flows the power of the secondary battery 4 to the AC power supply 3.
- FIG. 16 is a schematic configuration diagram of a charging system of an electric vehicle 700 employing the charging system according to the present invention.
- the electric vehicle 700 converts the electric power of the secondary battery 704 into a three-phase alternating current of variable voltage / variable frequency by an inverter 752 and supplies it to the power motor 751.
- the secondary battery 704 needs to be charged, and the plug-in charging primary circuit 706 connected to the plug-in connector PC1 is insulated for plug-in charging at the first charging station CS1 provided with the first power source 2.
- a transformer Tr12 (windings N1, N2) and a charging secondary circuit 707 are provided, and control means 709, 710 and a communication device 12 are provided.
- the second charging station CS2 includes a second power source 3, a non-contact charging primary circuit 708, and a part of the insulating transformer Tr23 (core T2 , Winding N3), control means 711, and communication device 13.
- the non-contact charging primary circuit 708 is controlled by the control means 711.
- the control means 710 and the control means 711 are connected wirelessly by the in-vehicle communication device 12 and the communication device 13 of the second charging station CS2.
- the insulating transformer Tr23 magnetically couples the winding N3 on the charging station CS2 side and the winding N2 on the in-vehicle side by the cores T1 and T2.
- the electric power for non-contact charging can be transmitted from the winding N3 to the winding N2.
- plug-in charging and non-contact charging can be handled by a single insulating transformer, and the secondary and subsequent sides of the insulating transformer can be shared, so that the charging device can be reduced in size and weight.
- the charging device 1 according to the present invention can also be applied to a hybrid vehicle.
- FIG. 17 is a schematic configuration diagram of the charging system of the vacuum cleaner 800 adopting the charging system according to the present invention.
- the charging device 801 is connected to a secondary battery 804 that supplies power to an inverter 852 that drives a power motor 851, a plug-in charging connector 853, and an AC power source 802.
- the power of the AC power source 802 connected to the plug-in charging connector 853 is supplied via the plug-in charging primary circuit 806, the insulating transformer Tr12 (winding N1, winding N2), and the charging secondary circuit 807.
- the secondary battery 804 is supplied.
- the AC power source 802 supplies the secondary battery 804 via the non-contact charging primary circuit 808, the insulating transformer Tr23 (core T2, winding N3, N2), and the charging secondary circuit 807.
- plug-in charging and non-contact charging can be handled by a single insulating transformer, and the secondary and subsequent sides of the insulating transformer can be shared, so that the charging device can be reduced in size and weight.
- the charging system according to the present invention can also be applied to stationary devices such as televisions and personal computers, and portable devices such as mobile phones.
- the present invention can be applied to an electric system used for an electric vehicle, a charging device for a transport device in a factory, a charging device used for a portable device, and the like.
- non-contact charge primary circuit 9, 10, 11, 109, 110, 111, 209, 210, 211, 309, 310, 311, 409, 410, 411, 509, 510, 511, 609, 610, 611, 709, 710, 711, 809, 810, 811 ... control means, 12, 13 ... communication device, 14, 16, 17 ... magnetic core, 15 ... insulation 21, 23, 623 ... AC-DC converter, 22, 24, 522, 524 ... DC-AC inverter, 751, 851 ... motor, 752, 852 ... inverter, PC1, PC2 ... plug-in connector, N1, N2, N3 ... windings of insulating transformers, T1, T2 ... magnetic cores of insulating transformers, Tr12 ... insulating transformers for plug-in charging, Tr23 ... insulating transformers for non-contact charging.
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Abstract
Description
以上のように構成されている充電装置1における充電動作について説明する。
実施例1による充電装置1のプラグイン充電動作を説明する。
次に、実施例1による充電装置1の非接触充電動作を説明する。
以下に、実施例2による充電装置101の回路動作を説明する。
図9は、実施例2による充電装置101のプラグイン充電動作を説明する回路図である。図9では、図8の第1の交流電源2とAC-DCコンバータ21を、直流電源V1として表している。以下、この図9を参照しながら、プラグイン充電動作を詳細に説明する。ただし、図9の(a)~(d)は、モードa~dを示す。
まず、モードaでは、スイッチング素子S11,S14がオン状態である。電源V1から共振コンデンサCr1と共振インダクタLr1による共振電流が巻線N1に流れている。このとき、巻線N2には、ダイオードD24,巻線N2,ダイオードD21のループで電流が流れ、平滑コンデンサC22と二次電池4を充電している。
モードaの状態で、共振コンデンサCr1の充電が完了し、共振コンデンサCr1と共振インダクタLr1の共振電流が流れ終わると、モードbの状態となる。モードbの状態では、巻線N1にはトランスの励磁電流のみ流れている。巻線N2の電圧は、平滑コンデンサC22の電圧より低いため、巻線N2には電流が流れていない。
モードbの状態で、スイッチング素子S11、S14をターンオフすると、モードcの状態となる。モードcでは、スイッチング素子を流れていた電流がダイオードを流れ、電源V1へ流れる。このとき、スイッチング素子S12、S13をオンしておく。巻線N2の電圧は、平滑コンデンサC22の電圧より低いため、巻線N2には電流が流れていない。
巻線N1の電流が反転すると、モードdの状態となる。このモードdは、モードaの対称動作である。以降、モードb,モードcの対称動作の後にモードaに戻る。
図10は、実施例2による充電装置101の非接触充電動作を説明する回路図である。図10では、図8の交流電源3とAC-DCコンバータ23を、直流電源V3として表している。以下、この図10を参照しながら非接触充電動作を詳細に説明する。ただし、図10の(a)~(h)は、モードa~hを示す。
まず、モードaでは、スイッチング素子S31~S34はオフ状態であり、ダイオードD34、共振コンデンサCr3、巻線N3、共振インダクタLr3のループで電流が流れている。このとき、巻線N2に誘導された電流は、ダイオードD22、D23を介して平滑コンデンサC22と二次電池4を充電している。
モードbにおいて、巻線N3の電流はモードaと同じループで流れている。巻線N2の電流は、巻線N2のインダクタンスと共振コンデンサCr2との共振現象により、巻線N2と共振コンデンサCr2のループでのみ流れている。
モードbにおいて、巻線N3に流れている共振電流が反転すると、モードcの状態となる。モードcでは、電源V3からスイッチング素子S31、共振インダクタLr3、巻線N3、共振コンデンサCr3、スイッチング素子34のループで電流が流れている。このとき、巻線N2の電流は、モードcと同様に巻線N2と共振コンデンサCr2のループでのみ流れている。
モードcの状態で、共振コンデンサCr2の電圧が平滑コンデンサC22の電圧に達すると、モードdへと移行する。このとき、巻線N3の電流はモードcと同じループで流れている。巻線N2に誘導された電流は、ダイオードD21、D24を介して平滑コンデンサC22と二次電池4を充電している。
モードdの状態で、スイッチング素子S31、S34をターンオフすると、スイッチング素子S31、S34を流れていた電流は、ダイオードD32、D33を介して電源3に流れる。巻線N2に誘導された電流は、モードdと同様に、ダイオードD21、D24を介して平滑コンデンサC22と二次電池4を充電している。
モードfでは、巻線N3の電流はモードeと同じループで流れている。巻線N2の電流は、巻線N2のインダクタンスと共振コンデンサCr2との共振現象により、巻線N2と共振コンデンサCr2のループでのみ流れている。この間にスイッチング素子S32、S33をオン状態とする。
モードfの状態で、巻線N3の電流が反転すると、モードgとなる。モードgでは、電源V3からスイッチング素子S33、共振コンデンサCr3、巻線N3、共振インダクタLr3、スイッチング素子S32のループで電流が流れる。巻線N2の電流は、モードfと同様に巻線N2と共振コンデンサCr2のループでのみ流れている。
モードgにおいて、共振コンデンサCr21の電圧が平滑コンデンサC22の電圧に達すると、モードhへ移行する。モードhでは、電源V3からスイッチング素子S33、共振インダクタLr3、巻線N3、共振コンデンサCr3、スイッチング素子S32のループで電流が流れる。このとき、巻線N2に誘導される電流は、ダイオードD32、D33を介して負荷へ流れている。
非接触充電による急速充電動作時には、スイッチSW11,SW12とスイッチSW31,SW32をオン状態に保つ。スイッチSW15,SW16を切り替え、巻線N1とDC-ACインバータ22とをAC-DCコンバータ21から切り離し、二次電池4と並列の平滑コンデンサC22に並列接続する。
非接触充電一次回路608、スイッチSW31,SW32、絶縁トランスTr23の一部(コアT2,巻線N3)、制御手段611、並びに、通信機13を備えている。
逆潮流動作時には、スイッチSW11,SW12とスイッチSW31,SW32をオン状態に、スイッチSW24,SW25をオフ状態に保つ。また、スイッチSW15,SW16を切り替え、巻線N1とDC-ACインバータ22を、交流電源2とAC-DCコンバータ21から切り離し、平滑コンデンサC22の両端に並列に接続する。制御手段610と制御手段611によりDC-ACインバータ22をスイッチング動作させ、巻線N1に交流電圧を印加する。DC-ACインバータ624のダイオードD31~D34は巻線N2に生じた誘導電圧を整流し、直流リンクコンデンサC32へ供給する。制御手段611によりPWMコンバータ623をスイッチング動作させ、直流リンクコンデンサC32の電力を交流電源3へ供給する。
Claims (22)
- 第1の電源からの電力を有線コネクタを介して供給されるトランスの第1の巻線と、
前記第1の巻線と磁気結合された前記トランスの第2の巻線と、
前記第2の巻線に供給された電力により充電される二次電池またはキャパシタと、
第2の電源からの電力を供給されるとともに、前記第2の巻線との相対位置が可変であり、前記第2の巻線が接近することによって、前記第2の巻線と磁気結合が可能な第3の巻線とを備え、
前記第1の電源から前記二次電池またはキャパシタを充電する場合には、前記第1の巻線と、前記第2の巻線の磁気結合を介して前記二次電池またはキャパシタへ充電電力を供給し、
前記第2の電源から前記二次電池またはキャパシタを充電する場合には、前記第3の巻線と前記第2の巻線の磁気結合を介して前記二次電池またはキャパシタへ充電電力を供給することを特徴とする充電システム。 - 請求項1において、前記第1の電源と前記トランスの第1の巻線との間に接続されたAC-ACコンバータを備え、前記有線コネクタを、前記第1の電源と前記AC-ACコンバータとの間を接続・遮断可能なように配置したことを特徴とする充電システム。
- 請求項1において、前記第1の電源と前記トランスの第1の巻線との間に接続されたAC-ACコンバータを備え、前記有線コネクタを、前記AC-ACコンバータと前記第1の巻線との間を接続・遮断可能なように配置したことを特徴とする充電システム。
- 請求項1~3のいずれかにおいて、前記第2の電源と前記第3の巻線との間にAC-ACコンバータを接続したことを特徴とする充電システム。
- 請求項2~4のいずれかにおいて、前記AC-ACコンバータは、整流回路と、チョッパ回路と、インバータ回路を備えたことを特徴とする充電システム。
- 請求項1において、前記第1および第2の巻線を含む前記トランスと前記二次電池またはキャパシタは、車両に搭載され、前記第1の巻線に電力を供給する前記第1の電源は地上の第1の充電所に配置され、前記第2の電源と前記第3の巻線は地上の第2の充電所に配置され、前記車両が前記第1の充電所の所定の位置に停止したとき前記有線コネクタを用いて前記第1の電源と前記第1の巻線間を接続可能であり、前記車両が前記第2の充電所の所定の位置に停止したとき前記第3の巻線と前記第2の巻線とが磁気結合できるように構成したことを特徴とする充電システム。
- 第1の電源に接続された第1の回路と、
前記第1の回路に接続されたトランスの第1の巻線と、
前記第1の巻線と磁気結合する前記トランスの第2の巻線と、
前記第2の巻線に供給された電力を二次電池またはキャパシタを充電するために供給する第2の回路と、
第2の電源に接続された第3の回路と、
第2の電源から前記第3の回路を介して電力を供給されるとともに、前記第2の巻線との相対位置が可変であり、前記第2の巻線が接近することによって、前記第2の巻線との磁気結合が可能な第3の巻線とを備え、
前記第1の電源から前記二次電池またはキャパシタを充電する場合には、前記第1の回路から前記第1および前記第2の巻線ならびに前記第2の回路を介して前記二次電池またはキャパシタへ充電電力を供給し、
前記第2の電源から前記二次電池またはキャパシタを充電する場合には、前記第3の回路から前記第3および前記第2の巻線ならびに前記第2の回路を介して前記二次電池またはキャパシタへ充電電力を供給することを特徴とする充電システム。 - 請求項7において、前記第1の回路と前記第1の巻線の間に、前記第1の巻線を前記第1の回路から切り離し、前記第2の巻線と並列接続するスイッチを備え、前記第2の電源から前記二次電池を充電する場合には、前記スイッチにより前記第1の巻線と前記第2の巻線を並列接続することを特徴とする充電システム。
- 請求項7において、前記第1の回路と前記第1の巻線の間に、前記第1の巻線を前記第1の回路から切り離すスイッチと、前記第2の巻線と前記第2の回路の間に前記第1の巻線と前記第2の巻線を直列に接続するスイッチとを備え、前記第2の電源から前記負荷へ電力を供給する場合には、前記第1の巻線と前記第2の巻線を直列接続することを特徴とする充電システム。
- 請求項7において、前記第1の回路及び/又は第3の回路は、整流回路と、チョッパ回路と、インバータ回路を含むAC-ACコンバータであることを特徴とする二次電池充電システム。
- 請求項10において、前記チョッパ回路は、直流端子間に接続された昇圧インダクタと昇圧スイッチング素子の直列回路と、前記昇圧スイッチング素子の両端間に接続された昇圧ダイオードと出力コンデンサの直列回路とを備えたことを特徴とする充電システム。
- 請求項7において、前記第1又は第3の回路は、前記第1又は第2の電源に接続された昇圧インダクタと、ダイオードが並列接続されたスイッチング素子をブリッジ接続したPWMコンバータ回路と、前記PWMコンバータの出力を平滑するコンデンサとを備えたことを特徴とする充電システム。
- 請求項7~12のいずれかにおいて、前記インバータ回路は、ダイオードが並列接続されたスイッチング素子をブリッジ接続したフルブリッジインバータ回路、前記第2の回路は、ダイオードをブリッジ接続したブリッジ整流回路としたことを特徴とする充電システム。
- 請求項7~13のいずれかにおいて、前記第2の回路は第1の通信機を備え、前記第3の回路は前記第1の通信機と通信する第2の通信機を備え、前記第1の通信機は、前記二次電池の充電状態に基づいて前記第3の回路を制御する制御指令を前記第2の通信機へ送信することを特徴とする充電システム。
- 請求項1~14のいずれかにおいて、前記トランスは、中心部に柱状の脚と、周縁部に脚を有し、前記第1および第2の巻線が巻かれるとともに、開口部から見ると内側がドーナツ型に窪んだ形状をした第1の磁性体コアと、前記第3の巻線が巻かれるとともに、周縁部に脚を有する第2の磁性体コアを備えたことを特徴とする充電システム。
- 請求項1~14のいずれかにおいて、前記トランスは、中心部に柱状で中心が窪んだ脚と、周縁部に脚を有し、前記第1および第2の巻線が巻かれるとともに、開口部から見ると内側がドーナツ型に窪んだ形状をした第1の磁性体コアと、前記第3の巻線が巻かれた平板状の第2の磁性体コアを備えたことを特徴とする充電システム。
- 請求項1~14のいずれかにおいて、前記トランスは、前記第1および第2の巻線が巻かれた平板状の第1の磁性体コアと、前記第3の巻線が巻かれた平板状の第2の磁性体コアを備えたことを特徴とする充電システム。
- 請求項15~17のいずれかにおいて、前記第1の磁性体コアに設置された前記第1の通信機と、前記第2の磁性体コアに設置された第2の通信機を備え、前記第1の通信機は、前記二次電池の充電状態に基づいて前記第3の回路を制御する制御指令を前記第2の通信機へ送信することを特徴とする充電システム。
- 請求項15~17のいずれかにおいて、前記第1と第2の巻線を覆う絶縁体の厚さが、前記第1と第2の巻線で異なることを特徴とする充電システム。
- 請求項7における、前記トランスの前記第1の巻線と、前記第2の巻線と、前記第2の回路、並びに前記二次電池またはキャパシタを搭載したことを特徴とする自動車。
- 請求項7における、前記第2の電源と、前記第3の回路、並びに前記第3の巻線を設置したことを特徴とする地上非接触充電所。
- 請求項7における、前記第1の回路と、前記トランスの前記第1の巻線と、前記第2の巻線と、前記第2の回路、並びに前記二次電池及び/または前記キャパシタを備えたことを特徴とする電気掃除機。
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JP2019092382A (ja) * | 2019-02-15 | 2019-06-13 | グァンドン オッポ モバイル テレコミュニケーションズ コーポレーション リミテッドGuangdong Oppo Mobile Telecommunications Corp., Ltd. | 充電回路及び移動端末 |
Also Published As
Publication number | Publication date |
---|---|
JPWO2012160660A1 (ja) | 2014-07-31 |
CN103548231A (zh) | 2014-01-29 |
KR101577517B1 (ko) | 2015-12-14 |
EP2717414A4 (en) | 2015-10-14 |
US9231424B2 (en) | 2016-01-05 |
CN103548231B (zh) | 2016-12-28 |
KR20140013050A (ko) | 2014-02-04 |
EP2717414A1 (en) | 2014-04-09 |
EP2717414B1 (en) | 2018-04-18 |
US20140084862A1 (en) | 2014-03-27 |
JP5801884B2 (ja) | 2015-10-28 |
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