Title:
QUAKE-SENSITIVE POWER CUTOFF SYSTEM
Document Type and Number:
Japanese Patent JP2016200574
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a quake-sensitive power cutoff system which allows for installing a circuit for immediate power cutoff and a circuit for delayed power cutoff, both being designed to work when an earthquake occurs, on a single common power line.SOLUTION: A quake-sensitive power cutoff system includes; a vibration sensor 1 configured to detect occurrence of an earthquake and output an earthquake detection signal; a control unit 2 having a transmission unit 23 configured to generate an earthquake occurrence signal for immediately cutting off a specific power route upon receipt of the earthquake detection signal; and an outlet unit 3 having an outlet 31 for connecting electronic devices, a receiver unit 35 for receiving the earthquake occurrence signal generated by the control unit 2, and switching contacts 32 for cutting off power to the outlet 31. A control unit CPU 25 of the control unit 2 outputs a delayed cutoff signal for cutting off all power routes when a predetermined period of time elapses after the vibration sensor 1 detects an earthquake.SELECTED DRAWING: Figure 1
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Inventors:
MIZUNO KAZUTO
ASAI SHIGEMI
NIWA RYOSUKE
ASAI SHIGEMI
NIWA RYOSUKE
Application Number:
JP2015158406A
Publication Date:
December 01, 2016
Filing Date:
August 10, 2015
Export Citation:
Assignee:
KAWAMURA ELECTRIC INC
International Classes:
G01V1/00; G08B23/00; H02H5/00; H02J13/00; H05B37/02
Domestic Patent References:
| JPH09233623A | 1997-09-05 | |||
| JP2012252546A | 2012-12-20 | |||
| JP2010029004A | 2010-02-04 | |||
| JP3022279U | 1996-03-22 | |||
| JPH10336885A | 1998-12-18 | |||
| JP2006025600A | 2006-01-26 | |||
| JP2000358324A | 2000-12-26 | |||
| JP2001232908A | 2001-08-28 |
Foreign References:
| US4390922A | 1983-06-28 |
Attorney, Agent or Firm:
Yoshiki Ishida