公开(公告)号：US20240039308A1

公开(公告)日：2024-02-01

申请号：US18267484

申请日：2021-12-15

Applicant: MAKITA CORPORATION

Inventor： Tomoki HORI ,  Hayato KANO

IPC: H02J7/00 ,  H01M10/48 ,  H01M50/583

CPC classification number: H02J7/0031 ,  H02J7/0047 ,  H02J7/0063 ,  H02J7/00712 ,  H02J7/0013 ,  H01M10/482 ,  H01M50/583 ,  B25F5/008

Abstract: A battery pack includes a battery, a coupling portion, a connection determiner, a receiver, and a prohibition range controller. The prohibition range controller varies a prohibition range depending on the connection or non-connection of the electric work machine that is determined by the connection determiner, or the specification of the electric work machine connected to the coupling portion. The prohibition range is defined by a current range and a voltage range. A discharge from the battery is prohibited in the prohibition range.

公开(公告)号：US20220190620A1

公开(公告)日：2022-06-16

申请号：US17547882

申请日：2021-12-10

Applicant: MAKITA CORPORATION

Inventor： Tomoki HORI ,  Hayato KANO

IPC: H02J7/00 ,  H01M10/46 ,  H01M10/44 ,  H01M10/42 ,  H01M10/48

Abstract: A battery pack according to one aspect of the present disclosure includes an attaching portion, a battery, a voltage detection circuit, a current acquisition circuit, a next current calculation circuit, a first charging stop circuit, and a second charging stop circuit. The attaching portion is electrically and mechanically connected to the battery charger. The first charging stop circuit stops charging of the battery in response to a first condition being satisfied. The second charging stop circuit stops the charging of the battery in response to a second condition different from the first condition being satisfied.