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1. WO2020065631 - WIRELESS POWER TRANSFER COUPLING STRUCTURES WITH REDUCED LEAKAGE FLUX

Publication Number WO/2020/065631
Publication Date 02.04.2020
International Application No. PCT/IB2019/058274
International Filing Date 30.09.2019
IPC
B60L 53/10 2019.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION 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
53Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
10characterised by the energy transfer between the charging station and the vehicle
B60L 53/38 2019.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION 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
53Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
30Constructional details of charging stations
35Means for automatic or assisted adjustment of the relative position of charging devices and vehicles
38specially adapted for charging by inductive energy transfer
H02J 50/70 2016.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
50Circuit arrangements or systems for wireless supply or distribution of electric power
70involving the reduction of electric, magnetic or electromagnetic leakage fields
H02J 50/10 2016.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
50Circuit arrangements or systems for wireless supply or distribution of electric power
10using inductive coupling
H01F 27/34 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
27Details of transformers or inductances, in general
34Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
CPC
B60L 53/12
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES
53Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
10characterised by the energy transfer between the charging station and the vehicle
12Inductive energy transfer
H01F 27/365
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
27Details of transformers or inductances, in general
34Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
36Electric or magnetic shields or screens
365Magnetic shields or screens
H01F 27/38
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
27Details of transformers or inductances, in general
34Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
38Auxiliary core members; Auxiliary coils or windings
H01F 38/14
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
38Adaptations of transformers or inductances for specific applications or functions
14Inductive couplings
H01F 41/04
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
41Apparatus 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
02for manufacturing cores, coils, or magnets
04for manufacturing coils
H01F 41/046
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
41Apparatus 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
02for manufacturing cores, coils, or magnets
04for manufacturing coils
041Printed circuit coils
046structurally combined with ferromagnetic material
Applicants
  • AUCKLAND UNISERVICES LIMITED [NZ]/[NZ]
Inventors
  • COVIC, Grant Anthony
  • PEARCE, Matthew Geoffrey Seymour
Agents
  • BALDWINS INTELLECTUAL PROPERTY
Priority Data
74684128.09.2018NZ
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) WIRELESS POWER TRANSFER COUPLING STRUCTURES WITH REDUCED LEAKAGE FLUX
(FR) STRUCTURES DE COUPLAGE DE TRANSFERT D'ÉNERGIE SANS FIL À FLUX DE FUITE RÉDUIT
Abstract
(EN)
A wireless coupling structure has a first layer comprising a flux coupling coil having two opposing end regions separated by two opposing side regions; a second layer comprising a first block of ferrite and a second block of ferrite; and a third layer comprising a leakage flux control coil. The first block is provided next to one of the end regions and the second block is provided next to the other of the end regions.
(FR)
L'invention concerne une structure de couplage sans fil ayant une première couche comprenant une bobine de couplage de flux ayant deux régions d'extrémité opposées séparées par deux régions latérales opposées ; une deuxième couche comprenant un premier bloc de ferrite et un second bloc de ferrite ; et une troisième couche comprenant une bobine de régulation de flux de fuite. Le premier bloc est disposé à côté de l'une des régions d'extrémité et le second bloc est disposé à côté de l'autre des régions d'extrémité.
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