Mobile power supply device

• US 9,676,276 B2
• Filed: 04/17/2014
• Issued: 06/13/2017
• Est. Priority Date: 11/25/2011
• Status: Active Grant

• Current Assignee: IHI Corporation
• Original Assignee: IHI Corporation
• Inventors: Niizuma, Motonao
• Primary Examiner(s): Gannon, Levi
• Application Number:
  US14/255,406
• Publication Number:
  US 20140225433A1
• Time in Patent Office: 1,153 Days
• Field of Search: 307 91, 307 101, 307104
• CPC Class Codes: B60L 1/006 to power outlets
• CPC Class Codes: B60L 15/007 Physical arrangements or structures of drive train converters specially adapted for the propulsion motors of electric vehicles
• CPC Class Codes: B60L 2210/30 AC to DC converters
• CPC Class Codes: B60L 2210/40 DC to AC converters
• CPC Class Codes: B60L 2220/14 Synchronous machines
• CPC Class Codes: B60L 2240/421 Speed
• CPC Class Codes: B60L 3/0069 relating to the isolation, e.g. ground fault or leak current
• CPC Class Codes: B60L 3/04 Cutting off the power supply under fault conditions protective devices and circuit arrangements in general H01H; H02H
• CPC Class Codes: B60L 5/005 without mechanical contact between the collector and the power supply line
• CPC Class Codes: B60L 50/51 characterised by AC-motors
• CPC Class Codes: B60L 53/124 Detection or removal of foreign bodies
• CPC Class Codes: B60L 53/22 Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
• CPC Class Codes: B60L 53/36 by positioning the vehicle
• CPC Class Codes: B60L 53/38 specially adapted for charging by inductive energy transfer
• CPC Class Codes: B60L 53/63 in response to network capacity
• CPC Class Codes: B60L 53/65 involving identification of vehicles or their battery types
• CPC Class Codes: B60L 55/00 Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
• CPC Class Codes: B60L 7/14 for vehicles propelled by ac motors
• CPC Class Codes: B60L 7/16 for vehicles comprising converters between the power source and the motor
• CPC Class Codes: B60R 16/033 characterised by the use of electrical cells or batteries for propulsion puposes B60K1/04; supplying batteries to, or removing batteries from, vehicles B60S5/06; testing of charge state G01R31/36
• CPC Class Codes: B60W 10/26 : for electrical energy, e.g. batteries or capacitors
• CPC Class Codes: H01M 2220/20 : Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H02J 2310/48 : for electric vehicles [EV] or hybrid vehicles [HEV]
• CPC Class Codes: H02J 50/10 : using inductive coupling
• CPC Class Codes: H02J 50/12 : of the resonant type
• CPC Class Codes: H02J 50/80 : involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• CPC Class Codes: H02J 50/90 : involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H02J 7/14 : for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
• CPC Class Codes: Y02E 60/00 : Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y02E 60/10 : Energy storage using batteries
• CPC Class Codes: Y02T 10/64 : Electric machine technologies in electromobility
• CPC Class Codes: Y02T 10/70 : Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 : Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 10/72 : Electric energy management in electromobility
• CPC Class Codes: Y02T 90/12 : Electric charging stations
• CPC Class Codes: Y02T 90/14 : Plug-in electric vehicles
• CPC Class Codes: Y02T 90/16 : Information or communication technologies improving the operation of electric vehicles
• CPC Class Codes: Y02T 90/167 : 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]
• CPC Class Codes: Y02T 90/40 : Application of hydrogen technology to transportation, e.g. using fuel cells
• CPC Class Codes: Y04S 10/126 : the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
• CPC Class Codes: Y04S 30/14 : Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing

Abstract

An electric vehicle that is serving as a mobile power supply device is provided with: a power-supplying coil that is covered by a weatherproof cover and that, together with an external power-receiving coil, forms an electromagnetic coupling circuit; and a power supplying circuit that supplies power stored in a storage cell wirelessly to the outside via the electromagnetic coupling circuit that is formed by the power-supplying coil and the external power-receiving coil.

Claims

1. A mobile power supply device that is capable of supplying power stored in a storage cell to outside of the mobile power supply device, comprising:

a power-supplying coil that is covered by a weatherproof component and that, together with an external power-receiving coil, forms a first electromagnetic coupling circuit;

a power converter that converts DC power stored in the storage cell into AC power and then supplies the AC power to the power-supplying coil;

a power-receiving coil that, together with an external power-supplying coil, forms a second electromagnetic coupling circuit;

a power-receiving circuit that receives power that is supplied wirelessly from outside of the mobile power supply device via the second electromagnetic coupling circuit that is formed by the external power-supplying coil and the power-receiving coil;

a charging device that charges the storage cell using power received by the power-receiving circuit;

a motor that generates power used for movement;

a drive circuit that drives the motor using power stored in the storage cell; and

a switching circuit that switches between connecting the power converter, the power-receiving circuit, and the drive circuit to the storage cell and disconnecting them from the storage cell,

wherein;

when power is discharged from the storage cell, the switching circuit is controlled so that the storage cell, the drive circuit, the power converter, and the power-receiving circuit are connected, and

when the storage cell is charged, the switching circuit is controlled so that the storage cell, the drive circuit, the power converter, and the power-receiving circuit are disconnected.

2. The mobile power supply device according to claim 1, wherein the power-receiving coil is covered by a weatherproof component.

3. The mobile power supply device according to claim 2, wherein there is provided:

a power supply destination setting device that sets the destination for the supply of AC power output from the power converter to either the power-supplying coil or the motor.

4. The mobile power supply device according to claim 1, wherein there is provided:

a power supply destination setting device that sets the destination for the supply of AC power output from the power converter to either the power-supplying coil or the motor.

5. A mobile power supply device that is capable of supplying power stored in a storage cell to outside of the mobile power supply device, comprising:

a power-transferring coil that is covered by a weatherproof component and that, together with an external power-transferring coil, forms an electromagnetic coupling circuit;

a power-transferring circuit that, out of a first operation in which power that is stored in the storage cell is supplied wirelessly to outside of the mobile power supply device via the electromagnetic coupling circuit, and a second operation in which power that is supplied wirelessly from outside of the mobile power supply device via the electromagnetic coupling circuit is received, performs at least the first operation;

a motor that generates power that is used for movement;

a drive circuit that drives the motor using power stored in the storage cell; and

a switching circuit that switches between connecting the power-transferring circuit and the drive circuit to the storage cell, and disconnecting them from the storage cell,

wherein;

when power is discharged from the storage cell, the switching circuit is controlled so that the storage cell, the drive circuit, and the power-transferring circuit are connected, and

when the storage cell is charged, the switching circuit is controlled so that the storage cell, the drive circuit, and the power-transferring circuit are disconnected.

6. The mobile power supply device according to claim 5, wherein there is provided a charging device that, when the second operation is performed by the power-transferring circuit, charges the storage cell using power received by the power-transferring circuit.