Title:
非接触式電力伝送に関する改良
Document Type and Number:
Japanese Patent JP4403285
Kind Code:
B2
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.
Inventors:
Chen, Lily, Ka, Lei
Hay, James, Westwood
Beet, pilgrim, giles, william
Hay, James, Westwood
Beet, pilgrim, giles, william
Application Number:
JP2004504368A
Publication Date:
January 27, 2010
Filing Date:
May 13, 2003
Export Citation:
Assignee:
Amway(Europe)Limited
International Classes:
H01F38/14; H01F3/02; H01F5/00; H01F27/25; H01F27/28; H01F41/02; H02J7/00; H02J7/02; H02J17/00
Domestic Patent References:
| JP48046810A | ||||
| JP11095922A | ||||
| JP2002313651A | ||||
| JP2000509955A | ||||
| JP2003196015A | ||||
| JP11176675A | ||||
| JP7087690A | ||||
| JP49001826B1 | ||||
| JP61196755A | ||||
| JP57170649U |
Foreign References:
| US5519262 |
Attorney, Agent or Firm:
Michiharu Soga
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Masahiro Taguchi
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Masahiro Taguchi