公开(公告)号：US20190006856A1

公开(公告)日：2019-01-03

申请号：US16073316

申请日：2017-01-27

Applicant: FDK CORPORATION

Inventor： Yasunari Mizoguchi ,  Kazuta Takeno ,  Kunihisa Sekiguchi ,  Kenji Kitamura ,  Takashi Kano

IPC: H02J7/00 ,  H01M10/44

Abstract: A charging circuit includes a first power source circuit that supplies charging power to secondary batteries; a switch that controls the supply of the power; and a control device that performs switching control of the switch. The control device detects a voltage difference between the secondary batteries before starting charging; starts a timer and starts serial charging of the secondary batteries; on the condition that the voltage difference before the charging has been equal to or larger than a first threshold, if respective voltage values of the secondary batteries have both become equal to or larger than a second threshold before the timer expires, shortens a remaining time on the timer at that time point; and finishes the serial charging of the secondary batteries at the earlier of a time point when the secondary batteries have both become fully charged, or a time point when the timer has expired.

公开(公告)号：US20160359353A1

公开(公告)日：2016-12-08

申请号：US15165927

申请日：2016-05-26

Applicant: FDK CORPORATION

Inventor： Kunihisa Sekiguchi ,  Yasunari Mizoguchi ,  Hirohito Teraoka ,  Hiroshi Suzuki ,  Katsuki Tsuchiya ,  Kevin Foster ,  Jinfeng Jia

IPC: H02J7/00

Abstract: A charger includes: a charging circuit which receives an electric power from external equipment and charges a secondary battery; a control device which determines a power supply capability of the external equipment on the basis of the electric power that is supplied to the charging circuit from the external equipment; and a display device that displays the power supply capability of the external equipment, which has been determined by the control device.

Abstract translation: 充电器包括：充电电路，其从外部设备接收电力并对二次电池充电; 控制装置，其基于从外部设备供给到充电电路的电力来确定外部设备的电力供应能力; 以及显示装置，其显示由控制装置确定的外部设备的电力供应能力。

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.

公开(公告)号：US20160285285A1

公开(公告)日：2016-09-29

申请号：US15078710

申请日：2016-03-23

Applicant: FDK CORPORATION

Inventor： Yasunari Mizoguchi ,  Hirohito Teraoka ,  Kunihisa Sekiguchi ,  Katsuki Tsuchiya ,  Kevin Foster

IPC: H02J7/00

CPC classification number: H02J7/0021 ,  H02J7/0052 ,  H02J2007/005

Abstract: A charger of the present invention includes a charging circuit that allows a secondary battery to be charged, a state-of-charge detection circuit that detects a state of charge of the secondary battery, a pictogram display unit that displays the state of charge of the secondary battery, and a control device that controls the charging circuit and the pictogram display unit on the basis of the state of charge of the secondary battery. The control device determines a kind of electronic apparatus available by the secondary battery in accordance with the state of charge of the secondary battery, and then displays the kind of electronic apparatus available on the pictogram display unit.

Abstract translation: 本发明的充电器包括：允许二次电池充电的充电电路;检测二次电池的充电状态的充电状态检测电路;显示充电状态的象形图显示单元; 二次电池，以及基于二次电池的充电状态来控制充电电路和象形图显示单元的控制装置。 控制装置根据二次电池的充电状态来确定由二次电池可用的电子设备的种类，然后显示在象形图显示单元上可用的电子设备的种类。

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：US20230118126A1

公开(公告)日：2023-04-20

申请号：US17906066

申请日：2021-02-04

Applicant: FDK CORPORATION

Inventor： Yasunari Mizoguchi ,  Yusuke Kusagaya

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

Abstract: A battery pack is provided in which the battery pack itself can recognize a determination of a full charge, which is made by a charger, without using a communication line. A battery pack is provided with a secondary battery, current measurement means for measuring a charging current for charging the secondary battery, and a control circuit which receives an output signal from the current measurement means. The control circuit determines that the secondary battery is fully charged when a reduction rate of the charging current in a unit time exceeds a predetermined value.

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.