Title:
POWER TRANSMISSION COIL STRUCTURE AND POWER TRANSMISSION DEVICE EQUIPPED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2023/171485
Kind Code:
A1
Abstract:
The present invention provides a power transmission coil structure (1) which comprises: a flat plate-shaped first magnetic body (10); a second magnetic body (20) that includes a central magnetic body (21) provided in a central portion on a surface of the first magnetic body (10), and a peripheral magnetic body (22) provided in a peripheral portion on the surface of the first magnetic body (10); a third magnetic body (30) provided between the central magnetic body (21) and the peripheral magnetic body (22); and a coil (40) which is disposed in a surface portion of the third magnetic body (30) and is wound around the central magnetic body (21). The second magnetic body (20) has a relative magnetic permeability which is three times or more higher than that of the third magnetic body (30).
Inventors:
KOUJIMA JUN (JP)
Application Number:
PCT/JP2023/007526
Publication Date:
September 14, 2023
Filing Date:
March 01, 2023
Export Citation:
Assignee:
TODA KOGYO CORP (JP)
International Classes:
H01F38/14; B60L5/00; B60L53/12; B60M7/00; H02J50/10; H02J50/70
Foreign References:
| JP2009005474A | 2009-01-08 | |||
| JP2010258913A | 2010-11-11 | |||
| JP2013192391A | 2013-09-26 | |||
| JP2018130028A | 2018-08-16 |
Attorney, Agent or Firm:
ISEKI Katsumori et al. (JP)
Download PDF: