Title:
FASTENING DEVICE HAVING FASTENERS, FASTENER LOOSENING DETECTION DEVICE, AND BATTERY MODULE EQUIPPED WITH FASTENING DEVICE
Document Type and Number:
Japanese Patent JP2015056266
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To restrain wrong detection of loosened fastening between a male screw member and a female screw member and to reduce electric power consumption.SOLUTION: A fastener loosening detection device comprises: a male screw member 22 and a female screw member 25 fastened to each other; a power generation element 31 that is constrained by the fastening of the male screw member 22 and the female screw member 25 to be incapable of shifting relative to the male screw member 22 and the female screw member 25, is allowed for relative vibration of the male screw member 22 and the female screw member 25 when the fastening is loosened; and a loosening detector 51 that outputs, when vibration generates power, a signal corresponding to the wattage generated by the power generation element 31.
Inventors:
GOTOU MITSUFUMI
Application Number:
JP2013188560A
Publication Date:
March 23, 2015
Filing Date:
September 11, 2013
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
H01M2/30; F16B31/00; F16B31/02; F16B43/00
Attorney, Agent or Firm:
Woods Ryuichiro
Masatake Shiga
Norio Takahashi
Tetsuo Yamazaki
Yasushi Matsunuma
Masatake Shiga
Norio Takahashi
Tetsuo Yamazaki
Yasushi Matsunuma