WO2003096512A8 - Contact-less power transfer - Google Patents

Contact-less power transfer

Info

Publication number
WO2003096512A8
WO2003096512A8 PCT/GB2003/002030 GB0302030W WO03096512A8 WO 2003096512 A8 WO2003096512 A8 WO 2003096512A8 GB 0302030 W GB0302030 W GB 0302030W WO 03096512 A8 WO03096512 A8 WO 03096512A8
Authority
WO
WIPO (PCT)
Prior art keywords
conductor
electromagnetic field
charging area
parallel
charging
Prior art date
Application number
PCT/GB2003/002030
Other languages
French (fr)
Other versions
WO2003096512A3 (en
WO2003096512A2 (en
Inventor
Lily Ka Lai Cheng
James Westwood Hay
Pilgrim Giles William Beart
Original Assignee
Splashpower Ltd
Lily Ka Lai Cheng
James Westwood Hay
Pilgrim Giles William Beart
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GBGB0210886.8A external-priority patent/GB0210886D0/en
Priority claimed from GBGB0225006.6A external-priority patent/GB0225006D0/en
Priority claimed from US10/326,571 external-priority patent/US6906495B2/en
Priority to EA200401490A priority Critical patent/EA006929B1/en
Priority to KR1020047018306A priority patent/KR101009812B1/en
Priority to AU2003233895A priority patent/AU2003233895B2/en
Priority to KR1020117017734A priority patent/KR101297537B1/en
Priority to JP2004504368A priority patent/JP4403285B2/en
Priority to KR1020107014679A priority patent/KR101120370B1/en
Application filed by Splashpower Ltd, Lily Ka Lai Cheng, James Westwood Hay, Pilgrim Giles William Beart filed Critical Splashpower Ltd
Priority to KR1020107014682A priority patent/KR101084810B1/en
Priority to KR1020107014681A priority patent/KR101129985B1/en
Priority to EP03727657A priority patent/EP1506605A2/en
Publication of WO2003096512A2 publication Critical patent/WO2003096512A2/en
Publication of WO2003096512A3 publication Critical patent/WO2003096512A3/en
Priority to US11/000,035 priority patent/US7042196B2/en
Publication of WO2003096512A8 publication Critical patent/WO2003096512A8/en
Priority to US10/514,046 priority patent/US7525283B2/en
Priority to US11/283,817 priority patent/US7248017B2/en
Priority to US12/416,979 priority patent/US7714537B2/en
Priority to US12/730,349 priority patent/US7863861B2/en
Priority to US12/850,158 priority patent/US7952324B2/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/003—Printed circuit coils
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/25—Magnetic cores made from strips or ribbons
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2804—Printed windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/02—Cores, Yokes, or armatures made from sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/14—Inductive couplings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0213—Manufacturing of magnetic circuits made from strip(s) or ribbon(s)
    • H01F41/0226—Manufacturing of magnetic circuits made from strip(s) or ribbon(s) from amorphous ribbons
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0233—Manufacturing of magnetic circuits made from sheets
    • 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
    • H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
    • 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
    • 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
    • H02J50/40—Circuit arrangements or systems for wireless supply or distribution of electric power using two or more transmitting or receiving devices
    • 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
    • H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
    • 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
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/00302—Overcharge protection
    • H04B5/79—
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/0006—Printed inductances
    • H01F2017/006—Printed inductances flexible printed inductors

Abstract

There is disclosed a system and method for transferring power without requiring direct electrical conductive contacts. There is provided a primary unit having a power supply and a substantially laminar charging surface having at least one conductor that generates an electromagnetic field when a current flows therethrough and having an charging area defined within a perimeter of the surface, the at least one conductor being arranged such that electromagnetic field lines generated by the at least one conductor are substantially parallel to the plane of the surface or at least subtend an angle of 45° or less to the surface within the charging area; and at least one secondary device including at least one conductor that may be wound about a core. Because the electromagnetic field is spread over the charging area and is generally parallel or near-parallel thereto, coupling with flat secondary devices such as mobile telephones and the like is significantly improved in various orientations thereof.
PCT/GB2003/002030 2002-05-13 2003-05-13 Contact-less power transfer WO2003096512A2 (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
EP03727657A EP1506605A2 (en) 2002-05-13 2003-05-13 Contact-less power transfer
KR1020107014681A KR101129985B1 (en) 2002-05-13 2003-05-13 Improvements relating to contact-less power transfer
KR1020107014682A KR101084810B1 (en) 2002-05-13 2003-05-13 Improvements relating to contact-less power transfer
KR1020047018306A KR101009812B1 (en) 2002-05-13 2003-05-13 Improvements relating to contact-less power transfer
AU2003233895A AU2003233895B2 (en) 2002-05-13 2003-05-13 Contact-less power transfer
EA200401490A EA006929B1 (en) 2002-05-13 2003-05-13 Method for transferring contactless power, system therefore and system components
KR1020117017734A KR101297537B1 (en) 2002-05-13 2003-05-13 Improvements relating to contact-less power transfer
JP2004504368A JP4403285B2 (en) 2002-05-13 2003-05-13 Improvements for contactless power transmission
KR1020107014679A KR101120370B1 (en) 2002-05-13 2003-05-13 Improvements relating to contact-less power transfer
US11/000,035 US7042196B2 (en) 2002-05-13 2004-12-01 Contact-less power transfer
US10/514,046 US7525283B2 (en) 2002-05-13 2005-02-28 Contact-less power transfer
US11/283,817 US7248017B2 (en) 2002-05-13 2005-11-22 Portable contact-less power transfer devices and rechargeable batteries
US12/416,979 US7714537B2 (en) 2002-05-13 2009-04-02 Contact-less power transfer
US12/730,349 US7863861B2 (en) 2002-05-13 2010-03-24 Contact-less power transfer
US12/850,158 US7952324B2 (en) 2002-05-13 2010-08-04 Contact-less power transfer

Applications Claiming Priority (10)

Application Number Priority Date Filing Date Title
GB0210886.8 2002-05-13
GBGB0210886.8A GB0210886D0 (en) 2002-05-13 2002-05-13 Improvements relating to contact-less power transfer
GB0213024.3 2002-06-07
GBGB0213024.3A GB0213024D0 (en) 2002-05-13 2002-06-07 Improvements relating to contact-less power transfer
GBGB0225006.6A GB0225006D0 (en) 2002-05-13 2002-10-28 Inductive battery recharging system
GB0225006.6 2002-10-28
GB0228425.5 2002-12-06
GBGB0228425.5A GB0228425D0 (en) 2002-05-13 2002-12-06 Improvements relating to contact-less power transfer
US10/326,571 US6906495B2 (en) 2002-05-13 2002-12-20 Contact-less power transfer
US10/326,571 2002-12-20

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US10/326,571 Continuation-In-Part US6906495B2 (en) 2002-05-13 2002-12-20 Contact-less power transfer

Related Child Applications (3)

Application Number Title Priority Date Filing Date
US10514046 A-371-Of-International 2003-05-13
US11/000,035 Division US7042196B2 (en) 2002-05-13 2004-12-01 Contact-less power transfer
US12/416,979 Continuation US7714537B2 (en) 2002-05-13 2009-04-02 Contact-less power transfer

Publications (3)

Publication Number Publication Date
WO2003096512A2 WO2003096512A2 (en) 2003-11-20
WO2003096512A3 WO2003096512A3 (en) 2004-02-26
WO2003096512A8 true WO2003096512A8 (en) 2004-12-16

Family

ID=29424791

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/GB2003/002038 WO2003096361A1 (en) 2002-05-13 2003-05-13 Improvements relating to the transfer of electromagnetic power
PCT/GB2003/002030 WO2003096512A2 (en) 2002-05-13 2003-05-13 Contact-less power transfer

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/GB2003/002038 WO2003096361A1 (en) 2002-05-13 2003-05-13 Improvements relating to the transfer of electromagnetic power

Country Status (6)

Country Link
EP (2) EP1506554A1 (en)
JP (1) JP4403285B2 (en)
KR (1) KR101009812B1 (en)
CN (1) CN100550570C (en)
AU (4) AU2003240999A1 (en)
WO (2) WO2003096361A1 (en)

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