Title:
PROTECTION CIRCUIT
Document Type and Number:
Japanese Patent JP2020127258
Kind Code:
A
Abstract:
To provide a protection circuit capable of downsizing an apparatus with a simple configuration while surely suppressing noise and further capable of reducing influences to be exerted upon a human body by noise.SOLUTION: A protection circuit 2A comprises: a protection element 10 including a soluble metal body 11 connected on an electrification path inside of a battery pack 1, and a heater element 12 connected to the soluble metal body 11 and capable of fusing the soluble metal body 11 by heating; a protection device 20 for detecting abnormality of a battery 3 connected to the electrification path; a switching element 30 which is operated to electrify the heater element 12 of the protection element 10 on the basis of a detection result of the protection device 20; and a frequency selection element 40 connected in parallel with the switching element 30 and passing noise in a predetermined frequency band.SELECTED DRAWING: Figure 1
Inventors:
KOMORI KAZUTOMO
Application Number:
JP2019017085A
Publication Date:
August 20, 2020
Filing Date:
February 01, 2019
Export Citation:
Assignee:
DEXERIALS CORP
International Classes:
H02H7/18; H01M10/42; H01M10/48; H02J7/00
Domestic Patent References:
| JP2010200598A | 2010-09-09 | |||
| JP2014102968A | 2014-06-05 |
Attorney, Agent or Firm:
Field Saki Satoshi
Norihiko Ara
Takuya Shiraishi
Shinichi Watanabe
Norihiko Ara
Takuya Shiraishi
Shinichi Watanabe