Title:
LIQUID LEAKAGE DETECTION SYSTEM
Document Type and Number:
Japanese Patent JP2016001525
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a liquid leakage detection system capable of reliably detecting ground fault caused by leakage of an electrolyte from a storage battery with a simple configuration in a battery pack using a ground system.SOLUTION: When the side of a negative electrode terminal 53 of a battery pack 5 is grounded to the ground, a housing 6 is grounded to the ground via a resistor 9a having a prescribed electric resistance value, and when an earth leakage circuit is formed due to leakage of an electrolyte 51i from a storage battery 51 constituting the battery pack 5 to the outside, ground fault is detected on the basis of a current flowing though the resistor 9a due to electric leakage.
Inventors:
YABUTA KAHO
TSUJIKAWA TOMONOBU
MATSUSHIMA TOSHIO
TSUJIKAWA TOMONOBU
MATSUSHIMA TOSHIO
Application Number:
JP2014120413A
Publication Date:
January 07, 2016
Filing Date:
June 11, 2014
Export Citation:
Assignee:
NTT FACILITIES INC
NTT FACILITIES SOGO KENKYUSHO KK
NTT FACILITIES SOGO KENKYUSHO KK
International Classes:
H01M10/42; G01R31/02; H02H3/16; H02H7/18; H02J7/00
Attorney, Agent or Firm:
Harushima Shigetokiro