Power storage apparatus

• US 10,128,694 B2
• Filed: 09/16/2016
• Issued: 11/13/2018
• Est. Priority Date: 10/14/2009
• Status: Expired due to Fees

• Current Assignee: UD Trucks Corporation (Isuzu Motors Limited)
• Original Assignee: Volvo Truck Corporation (AB Volvo)
• Inventors: Kobayashi, Shigemi, Nakane, Masayuki, Tsuchiya, Takayuki
• Primary Examiner(s): Berhanu, Samuel
• Application Number:
  US15/267,143
• Publication Number:
  US 20170005506A1
• Time in Patent Office: 788 Days
• Field of Search: 320108
• CPC Class Codes: B60L 50/40 using propulsion power supplied by capacitors
• CPC Class Codes: B60L 53/11 DC charging controlled by the charging station, e.g. mode 4
• CPC Class Codes: B60L 53/122 Circuits or methods for driving the primary coil, e.g. supplying electric power to the coil
• CPC Class Codes: B60L 53/126 Methods for pairing a vehicle and a charging station, e.g. establishing a one-to-one relation between a wireless power transmitter and a wireless power receiver
• CPC Class Codes: B60L 53/22 Constructional details or arrangements of charging converters specially adapted for charging electric vehicles
• CPC Class Codes: B60L 58/12 responding to state of charge [SoC]
• 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: H01F 27/2804 Printed windings
• CPC Class Codes: H01G 11/10 Multiple hybrid or EDL capacitors, e.g. arrays or modules housings, cases, encapsulations or mountings thereof H01G11/78
• CPC Class Codes: H01G 11/14 Arrangements or processes for adjusting or protecting hybrid or EDL capacitors emergency protective circuit arrangements specially adapted for capacitors, and effecting automatic switching in the event of an undesired change from normal working conditions H02H7/16; emergency protective circuit arrangements for limiting excess current or voltages without disconnection H02H9/00
• CPC Class Codes: H01G 9/26 Structural combinations of electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices with each other
• 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 50/20 using microwaves or radio frequency waves
• CPC Class Codes: H02J 50/70 involving the reduction of electric, magnetic or electromagnetic leakage fields
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/0014 Circuits for equalisation of charge between batteries
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: Y02E 60/13 Energy storage using capacitors
• 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 90/12 : Electric charging stations
• CPC Class Codes: Y02T 90/14 : Plug-in electric vehicles

Abstract

A storage apparatus includes a plurality of storage cells connected in series. Each storage cell comprises a storage element that stores a charge, a container that houses the storage element, a reception antenna capable of receiving power transmitted from a transmission antenna of a feeding facility provided in a wireless power transfer system, and a charging control circuit that charges the storage element using the power received by the reception antenna. The plurality of storage cells are charged concurrently and wirelessly, and therefore charging can be performed on all of the storage cells without overcharging or undercharging.

Claims

1. A storage apparatus configured to store power transferred from a feeding facility via a wireless power transfer system, the storage apparatus comprising:

a plurality of storage cells connected in series or in parallel, wherein each storage cell of the plurality of storage cells comprises;

a storage element configured to store a charge;

a container that houses the storage element;

a reception antenna configured to receive power transmitted by the wireless power transfer system; and

a charging control circuit configured to charge the storage element using the power received by the reception antenna, wherein the reception antenna and the charging control circuit are mounted on and carried by the container,

wherein the feeding facility comprises a transmission antenna including;

a primary coil configured to receive high-frequency power, and

a primary self-resonant coil configured to be coupled to the primary coil by electromagnetic induction,

wherein the reception antenna comprises;

a secondary self-resonant coil configured to be coupled to the primary self-resonant coil by magnetic field resonance, and

a secondary coil configured to be coupled to the secondary self-resonant coil by electromagnetic induction, and

wherein the container comprises;

a rectangular frame that surrounds the storage element; and

a film body adhered to respective surfaces of the rectangular frame, wherein the reception antenna is wound around the rectangular frame.

2. The storage apparatus as defined in claim 1, wherein the rectangular frame comprises:

a first rectangular frame that surrounds the storage element; and

a second rectangular frame that surrounds the first rectangular frame, wherein the reception antenna is wound around the second rectangular frame.

3. The storage apparatus as defined claim 1, wherein the rectangular frame comprises:

a first rectangular frame surrounding the storage element; and

a second rectangular frame surrounding the first rectangular frame,

wherein the secondary coil is wound around the first rectangular frame, and the secondary self-resonant coil is wound around the second rectangular frame.

4. A storage apparatus configured to store power transferred from a feeding facility via a wireless power transfer system, the storage apparatus comprising:

a plurality of storage cells connected in series or in parallel, wherein each storage cell of the plurality of storage cells comprises;

a storage element configured to store a charge;

a container that houses the storage element;

a reception antenna configured to receive power transmitted by the wireless power transfer system; and

a charging control circuit configured to charge the storage element using the power received by the reception antenna, wherein the reception antenna and the charging control circuit are mounted on and carried by the container,

wherein the feeding facility comprises a transmission antenna including;

a primary coil configured to receive high-frequency power, and

a primary self-resonant coil configured to be coupled to the primary coil by electromagnetic induction,

wherein the reception antenna comprises;

a secondary self-resonant coil configured to be coupled to the primary self-resonant coil by magnetic field resonance, and

a secondary coil configured to be coupled to the secondary self-resonant coil by electromagnetic induction, and

wherein the container comprises;

a rectangular frame that surrounds the storage element; and

a film body adhered to respective surfaces of the rectangular frame, wherein the reception antenna is incorporated into the film body.

5. The storage apparatus as defined in claim 4, wherein

the film body comprises a laminate sheet of resin layers having an electric insulation property and laminated to each other, and

the reception antenna is pattern-printed onto an electrical insulating film inserted between the resin layers of the film body.

6. The storage apparatus as defined in claim 4, wherein:

the film body comprises a pair of film bodies adhered to respective surfaces of the rectangular frame, and

the secondary self-resonant coil is incorporated into one of the film bodies, and the secondary coil is incorporated into the other film body.