公开(公告)号：US11387660B2

公开(公告)日：2022-07-12

申请号：US17045906

申请日：2019-04-10

Applicant: FDK CORPORATION

Inventor： Takashi Kanou ,  Kenji Kitamura ,  Yasunari Mizoguchi ,  Kunihisa Sekiguchi

IPC: H02J7/00 ,  G01R31/389 ,  G01R31/396 ,  H01M10/44

Abstract: A sorting mechanism includes a flap that selects a first path connecting from a battery outlet of a charging section to a battery inlet of a first compartment section as a path to introduce a first battery to the first compartment section in a case of housing the first battery in the first compartment section, and that selects a second path connecting from the battery outlet of the charging section to a battery inlet of a second compartment section as a path to introduce a second battery to the second compartment section in a case of housing the second battery in the second compartment section.

公开(公告)号：US11228186B2

公开(公告)日：2022-01-18

申请号：US16982037

申请日：2019-04-10

Applicant: FDK CORPORATION

Inventor： Takashi Kanou ,  Kenji Kitamura ,  Yasunari Mizoguchi

IPC: H02J7/00 ,  H01M10/44

Abstract: A charger includes: a power supply device for charging a secondary battery; a power supply path that includes a first switch and a second switch, and supplies electric power from the power supply device to the secondary battery; a discharge circuit that includes a first resistor and a third switch, has one end connected to a connection point between the first switch and the second switch, and has the other end connected to a ground line; a short-circuit preventing circuit that includes a second resistor and a fourth switch, and is connected in parallel to the first switch; and a control device that controls open-close of each switch and acquires a voltage value VP, wherein the control device detects a failure of each switch on a condition where the voltage value VP is different between a normal state and a failure state, in a combination of open-close control for each switch.

公开(公告)号：US20210028633A1

公开(公告)日：2021-01-28

申请号：US16982037

申请日：2019-04-10

Applicant: FDK CORPORATION

Inventor： Takashi Kanou ,  Kenji Kitamura ,  Yasunari Mizoguchi

IPC: H02J7/00 ,  H01M10/44

Abstract: A charger includes: a power supply device for charging a secondary battery; a power supply path that includes a first switch and a second switch, and supplies electric power from the power supply device to the secondary battery; a discharge circuit that includes a first resistor and a third switch, has one end connected to a connection point between the first switch and the second switch, and has the other end connected to a ground line; a short-circuit preventing circuit that includes a second resistor and a fourth switch, and is connected in parallel to the first switch; and a control device that controls open-close of each switch and acquires a voltage value VP, wherein the control device detects a failure of each switch on a condition where the voltage value VP is different between a normal state and a failure state, in a combination of open-close control for each switch.

公开(公告)号：US11936223B2

公开(公告)日：2024-03-19

申请号：US17290772

申请日：2019-09-20

Applicant: FDK CORPORATION

Inventor： Kenji Kitamura ,  Yasunari Mizoguchi ,  Takashi Kanou

IPC: G01R19/14 ,  G01R31/3832 ,  H01M10/44 ,  H01M10/48 ,  H01M50/202 ,  H02J7/00

CPC classification number: H02J7/0034 ,  G01R19/14 ,  G01R31/3832 ,  H01M10/441 ,  H01M10/48 ,  H01M10/482 ,  H01M50/202 ,  H02J7/0014

Abstract: A battery polarity determination circuit includes a battery accommodating unit including a first contact and a second contact to be in contact with respective electrode terminals of a battery, a control device that is connected via a resistor to a voltage lead-out point at which a voltage of the battery is led out and determines a polarity of the battery, a connection switching circuit capable of switching between a first connection state and a second connection state, and a diode having a cathode to be connected to a voltage read-in point at which the resistor and the control device are connected to each other, and an anode to be grounded, wherein the control device determines the polarity of the battery based on a voltage at the voltage read-in point according to the connection state of the connection switching circuit, and a forward voltage of the diode is set so that the voltage at the voltage read-in point is not less than a lower limit value of an absolute maximum rating of the control device.

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.

公开(公告)号：USD1012017S1

公开(公告)日：2024-01-23

申请号：US29761824

申请日：2020-12-11

Applicant: FDK CORPORATION

Designer： Takashi Kanou ,  Mika Takayanagi ,  Asuka Takahashi ,  Yasunari Mizoguchi ,  Katsuki Tsuchiya ,  Kenji Kitamura ,  Kunihisa Sekiguchi ,  Kazuta Takeno

Abstract: FIG. 1 is a perspective view of a battery charger.
FIG. 2 is a front view of the battery charger.
FIG. 3 is a back view of the battery charger.
FIG. 4 is a left view of the battery charger.
FIG. 5 is a right view of the battery charger.
FIG. 6 is a top view of the battery charger; and,
FIG. 7 is a bottom view of the battery charger.
In the drawings, the broken lines are for the purpose of illustrating portions of the battery charger that form no part of the claimed design.

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：US20210376617A1

公开(公告)日：2021-12-02

申请号：US17290772

申请日：2019-09-20

Applicant: FDK CORPORATION

Inventor： Kenji Kitamura ,  Yasunari Mizoguchi ,  Takashi Kanou

IPC: H02J7/00 ,  H01M10/48 ,  H01M10/44 ,  G01R31/3832 ,  G01R19/14

Abstract: A battery polarity determination circuit includes a battery accommodating unit including a first contact and a second contact to be in contact with respective electrode terminals of a battery, a control device that is connected via a resistor to a voltage lead-out point at which a voltage of the battery is led out and determines a polarity of the battery, a connection switching circuit capable of switching between a first connection state and a second connection state, and a diode having a cathode to be connected to a voltage read-in point at which the resistor and the control device are connected to each other, and an anode to be grounded, wherein the control device determines the polarity of the battery based on a voltage at the voltage read-in point according to the connection state of the connection switching circuit, and a forward voltage of the diode is set so that the voltage at the voltage read-in point is not less than a lower limit value of an absolute maximum rating of the control device.

公开(公告)号：US20210036530A1

公开(公告)日：2021-02-04

申请号：US17045906

申请日：2019-04-10

Applicant: FDK CORPORATION

Inventor： Takashi Kanou ,  Kenji Kitamura ,  Yasunari Mizoguchi ,  Kunihisa Sekiguchi

IPC: H02J7/00 ,  H01M10/44 ,  G01R31/396 ,  G01R31/389

Abstract: A sorting mechanism includes a flap that selects a first path connecting from a battery outlet of a charging section to a battery inlet of a first compartment section as a path to introduce a first battery to the first compartment section in a case of housing the first battery in the first compartment section, and that selects a second path connecting from the battery outlet of the charging section to a battery inlet of a second compartment section as a path to introduce a second battery to the second compartment section in a case of housing the second battery in the second compartment section.