Title:
BATTERY PACK SYSTEM AND METHOD FOR RECHARGING A BATTERY PACK
Document Type and Number:
WIPO Patent Application WO/2013/014878
Kind Code:
A1
Abstract:
A battery pack system includes at least one battery pack (20) for a power tool (10) that includes at least one battery cell (24) and battery terminals (36). A storage case or tray (40) is adapted to accommodate the at least one battery pack and includes charging terminals (41a, 41b, 41c, 42d) for directly contacting the battery terminals, at least one device (46) that receives wirelessly transmitted power and a circuit (92) that converts the wirelessly received power into a charging current that is supplied to the charging terminals. A method for recharging the battery pack includes engaging the battery terminals with the charging terminals of the first storage case or tray, generating an electromagnetic field adjacent to the first storage case, generating a charging current using power obtained from the electromagnetic field, and charging the at least one battery cell in the battery pack using the charging current.
Inventors:
SUZUKI HITOSHI (JP)
ITO KOSUKE (JP)
ITO KOSUKE (JP)
Application Number:
PCT/JP2012/004550
Publication Date:
January 31, 2013
Filing Date:
July 13, 2012
Export Citation:
Assignee:
MAKITA CORP (JP)
SUZUKI HITOSHI (JP)
ITO KOSUKE (JP)
SUZUKI HITOSHI (JP)
ITO KOSUKE (JP)
International Classes:
H01M10/42; H01M10/46; H01M16/00; H01M50/244; H01M50/247; H01M50/262; H02J7/02; H01M50/209
Foreign References:
| US20070236174A1 | 2007-10-11 | |||
| US7462951B1 | 2008-12-09 | |||
| US20090212737A1 | 2009-08-27 | |||
| US20030231001A1 | 2003-12-18 | |||
| US6441589B1 | 2002-08-27 | |||
| US5565756A | 1996-10-15 |
Other References:
None
Attorney, Agent or Firm:
KAI-U PATENT LAW FIRM (45-14 Meieki 2-chome, Nakamura-ku, Nagoya-sh, Aichi 02, JP)
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Claims: