Title:
POWER SOURCE SWITCHING DEVICE AND STORAGE BATTERY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2015/045226
Kind Code:
A1
Abstract:
The output from a first alternating current power source supplied through a first relay or the output from a second alternating current power source supplied through a second relay is fed to a load by a third relay switching therebetween. A welding detection unit detects welding in the first relay. When switching from feeding the output from the first alternating current power source to the load to feeding the output from the second alternating current power source to the load, a power source switching control unit causes the first relay to switch from the closed state to the open state, causes switching of the third relay so that the output from the second alternating current power source is selected and supplied, and then, prohibits switching of the second relay from the open state to the closed state until a first relay welding detection process at the welding detection unit is completed.
Inventors:
KURANUKI MASAAKI
KUBO MASAHIKO
KUBO MASAHIKO
Application Number:
PCT/JP2014/003344
Publication Date:
April 02, 2015
Filing Date:
June 23, 2014
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H02J9/06; H01H47/00
Foreign References:
| JPH05182771A | 1993-07-23 | |||
| JPS59129542A | 1984-07-25 | |||
| JPH10144476A | 1998-05-29 | |||
| JP2000173428A | 2000-06-23 |
Attorney, Agent or Firm:
FUJII, Kentaro et al. (JP)
Fujii Kentaro (JP)
Fujii Kentaro (JP)
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