The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 22, 2024
Filed:
Jun. 06, 2023
Koki Holdings Co., Ltd., Tokyo, JP;
Yasushi Nakano, Ibaraki, JP;
Satoshi Yamaguchi, Ibaraki, JP;
Hiroyuki Hanawa, Ibaraki, JP;
Kazuhiko Funabashi, Ibaraki, JP;
Tomomasa Nishikawa, Ibaraki, JP;
Shota Kanno, Ibaraki, JP;
Toshio Mizoguchi, Ibaraki, JP;
Koki Holdings Co., Ltd., Tokyo, JP;
Abstract
An electrical apparatus includes a battery pack, an electrical apparatus main body and a control unit. The battery pack has a plurality of cell units of which connection states are able to be switched and a plurality of battery side connection terminals. The electrical apparatus main body has a battery pack mounting portion to which the battery pack is mounted, a plurality of device side connection terminals to which the plurality of battery side connection terminals are connectable, and a load device to which power is supplied from the battery pack. The control unit is configured to stop or limit power supply from the battery pack to the load device when a voltage imbalance is generated between the plurality of cell units or a contact failure is generated between the plurality of battery side connection terminals and the plurality of device side terminals.