公开(公告)号：US11742685B2

公开(公告)日：2023-08-29

申请号：US17309390

申请日：2019-09-20

Applicant: FDK CORPORATION

Inventor： Takashi Kanou ,  Kenji Kitamura ,  Yasunari Mizoguchi ,  Takeshi Yoshida ,  Michiko Sato

IPC: H02J7/00 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48 ,  H01M50/269 ,  H01M50/202

CPC classification number: H02J7/007182 ,  H01M10/425 ,  H01M10/44 ,  H01M10/48 ,  H01M50/202 ,  H01M50/269 ,  H02J7/0034 ,  H02J7/0045 ,  H02J7/0047 ,  H02J7/00306 ,  H01M2010/4271

Abstract: This charger 1 is provided with: a battery housing unit 2 including a first contact T1 and a second contact T2 which touch the respective electrode terminals of a battery BAT to be housed therein; a high-potential power supply line 3 and a low-potential power supply line 4 to which power for charging the battery BAT is supplied; a connection switching circuit 5 capable of switching between a first connection state in which the first contact T1 is connected to the high-potential power supply line 3 and the second contact T2 is connected to the low-potential power supply line 4 and a second connection state in which the second contact T2 is connected to the high-potential power supply line 3 and the first contact T1 is connected to the low-potential power supply line 4; and a control device 7 for controlling the connection switching circuit 5 to perform charging control on the battery BAT. The control device 7 performs preliminary charging on the battery BAT in the first connection state and, when a battery voltage VB does not exceed a set voltage VS, switches the connection state to the second connection state and performs preliminary and normal charging on the battery BAT.

公开(公告)号：US20220029445A1

公开(公告)日：2022-01-27

申请号：US17309390

申请日：2019-09-20

Applicant: FDK CORPORATION

Inventor： Takashi Kanou ,  Kenji Kitamura ,  Yasunari Mizoguchi ,  Takeshi Yoshida ,  Michiko Sato

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

Abstract: This charger 1 is provided with: a battery housing unit 2 including a first contact T1 and a second contact T2 which touch the respective electrode terminals of a battery BAT to be housed therein; a high-potential power supply line 3 and a low-potential power supply line 4 to which power for charging the battery BAT is supplied; a connection switching circuit 5 capable of switching between a first connection state in which the first contact T1 is connected to the high-potential power supply line 3 and the second contact T2 is connected to the low-potential power supply line 4 and a second connection state in which the second contact T2 is connected to the high-potential power supply line 3 and the first contact T1 is connected to the low-potential power supply line 4; and a control device 7 for controlling the connection switching circuit 5 to perform charging control on the battery BAT. The control device 7 performs preliminary charging on the battery BAT in the first connection state and, when a battery voltage VB does not exceed a set voltage VS, switches the connection state to the second connection state and performs preliminary and normal charging on the battery BAT.