公开(公告)号：US20170098949A1

公开(公告)日：2017-04-06

申请号：US15378641

申请日：2016-12-14

Applicant: MAKITA CORPORATION

Inventor： Masahiko GOTO ,  Takayoshi ENDO ,  Tomonobu NASHIMOTO

IPC: H02J7/00

Abstract: A rechargeable battery type electric power tool is widely used for a construction work or a horticultural work. A battery of the electric power tool can also be used as a power source of an electric apparatus. Because of this construction, there is provided the electric apparatus that has a function equivalent to that of an AC power source type apparatus.

公开(公告)号：US20150200553A1

公开(公告)日：2015-07-16

申请号：US14590395

申请日：2015-01-06

Applicant: MAKITA CORPORATION

Inventor： Takayoshi ENDO ,  Shunpei YAMAJI

IPC: H02J7/00

CPC classification number: H02J7/0031 ,  H01M2/1072 ,  H01M2/348 ,  H01M10/42 ,  H01M2010/4271 ,  H01M2200/103 ,  H02J7/0021 ,  H02J7/0026

Abstract: A battery pack of one aspect of an embodiment of the present disclosure comprises a battery, a control unit, a pair of external terminals, a first current cut-off unit, and a second current cut-off unit. The control unit determines whether the first current cut-off unit and the second current cut-off unit are normal or abnormal when neither charge nor discharge of the battery is performed. When the first current cut-off unit and the second current cut-off unit are both normal, the control unit turns the first current cut-off unit and the second current cut-off unit to an energized state. When at least one of the first current cut-off unit and the second current cut-off unit is abnormal, the control unit turns the first current cut-off unit or the second current cut-off unit to a cut-off state.

Abstract translation: 本公开实施例的一个方面的电池组包括电池，控制单元，一对外部端子，第一电流切断单元和第二电流切断单元。 当不执行电池的充电和放电时，控制单元确定第一电流截止单元和第二电流截止单元是正常还是异常。 当第一电流切断单元和第二电流切断单元都正常时，控制单元将第一电流切断单元和第二电流切断单元转换为通电状态。 当第一电流截止单元和第二电流截止单元中的至少一个异常时，控制单元将第一电流截止单元或第二电流切断单元转换为截止状态。

公开(公告)号：US20190074683A1

公开(公告)日：2019-03-07

申请号：US16181449

申请日：2018-11-06

Applicant: MAKITA CORPORATION

Inventor： Hiroki UESUGI ,  Takuya UMEMURA ,  Takayoshi ENDO ,  Masafumi NODA

IPC: H02H7/18 ,  H02J7/00 ,  H02H3/04 ,  H02H3/05

Abstract: An electrically-driven working apparatus in one aspect of an embodiment of the present disclosure comprises: a battery; an abnormality detection unit; a power supply path; a first disconnection unit; a second disconnection unit; and a control unit. The control unit activates the first disconnection unit to disconnect the power supply path if either of an overload or an over discharge of the battery is detected by the abnormality detection unit, and subsequently determines whether discharge from the battery has stopped after activating the first disconnection unit, and activates the second disconnection unit to disconnect the power supply path if discharge from the battery has not stopped.

公开(公告)号：US20160156206A1

公开(公告)日：2016-06-02

申请号：US14944471

申请日：2015-11-18

Applicant: MAKITA CORPORATION

Inventor： Shunpei YAMAJI ,  Takayoshi ENDO

IPC: H02J7/00

CPC classification number: H02J7/0026 ,  H02H3/044 ,  H02H7/18 ,  H02J7/0021 ,  H02J7/0031 ,  H02J2007/0039

Abstract: A battery pack in the present disclosure comprises: a battery; a switching element that is provided in a discharge path from the battery to an external load and that is configured to complete or interrupt the discharge path; a control circuit that operates by receiving a supply of an electric power from the battery, that conducts an electric current through the switching element so as to allow discharge from the battery to the external load, and upon occurrence of an abnormality in the battery or the external load during the discharge, that interrupts the switching element so as to inhibit the discharge from the battery to the external load; and a protection circuit that monitors an operating condition of the control circuit and that interrupts the switching element when the control circuit is inoperative.

Abstract translation: 本公开的电池组包括：电池; 开关元件，其设置在从电池到外部负载的放电路径中，并且被配置为完成或中断放电路径; 控制电路，其通过接收来自所述电池的电力供应而工作，所述电力通过所述开关元件传导电流，以允许从所述电池到所述外部负载的放电，以及在所述电池或所述电池中发生异常时 在放电期间的外部负载，其中断开关元件，以便抑制从电池向外部负载的放电; 以及保护电路，其监视控制电路的工作状态，并且当控制电路不工作时中断开关元件。

公开(公告)号：US20150200535A1

公开(公告)日：2015-07-16

申请号：US14596600

申请日：2015-01-14

Applicant: MAKITA CORPORATION

Inventor： Hiroki UESUGI ,  Takuya UMEMURA ,  Takayoshi ENDO ,  Masafumi NODA

IPC: H02H3/20 ,  H02H1/06

CPC classification number: H02H7/18 ,  H02H3/044 ,  H02H3/05 ,  H02J7/0031 ,  H02J7/0063 ,  H02J2007/004

Abstract: An electrically-driven working apparatus in one aspect of an embodiment of the present disclosure comprises: a battery; an abnormality detection unit; a power supply path; a first disconnection unit; a second disconnection unit; and a control unit. The control unit activates the first disconnection unit to disconnect the power supply path if either of an overload or an over discharge of the battery is detected by the abnormality detection unit, and subsequently determines whether discharge from the battery has stopped after activating the first disconnection unit, and activates the second disconnection unit to disconnect the power supply path if discharge from the battery has not stopped.

Abstract translation: 本公开的实施例的一个方面中的电驱动加工装置包括：电池; 异常检测单元; 电源路径; 第一断开单元; 第二断开单元; 和控制单元。 如果由异常检测单元检测到电池的过载或过度放电，则控制单元激活第一断开单元以断开电源路径，并且随后在激活第一断开单元之后确定来自电池的放电是否停止 并且如果来自电池的放电没有停止，则启动第二断开单元以断开电源路径。

公开(公告)号：US20250030259A1

公开(公告)日：2025-01-23

申请号：US18707367

申请日：2022-11-07

Applicant: MAKITA CORPORATION

Inventor： Takayoshi ENDO

IPC: H02J7/00 ,  A01D69/02 ,  B25F5/00 ,  A01D34/90

Abstract: A power-supply system includes an electric work machine, a power-supply apparatus, and an adapter. The power-supply apparatus outputs a power-supply voltage. The adapter is coupled between the power-supply apparatus and the electric work machine and relays the power-supply voltage output from the power-supply apparatus to the electric work machine. A work machine communicator of the electric work machine performs, with the adapter, a digital communication in which a voltage level of an electrical signal is sequentially switched between a high level and a low level over time according to communication content. A power-supply communicator of the power-supply apparatus performs the digital communication with the adapter. An adapter communicator of the adapter performs the digital communication with the electric work machine and performs the digital communication with the power-supply apparatus.

公开(公告)号：US20180233936A1

公开(公告)日：2018-08-16

申请号：US15880441

申请日：2018-01-25

Applicant: MAKITA CORPORATION

Inventor： Toru YAMADA ,  Takayoshi ENDO ,  Hiroki OKA

IPC: H02J7/00 ,  G01K3/00 ,  H01R31/06 ,  B25F5/00 ,  G01R31/34 ,  H01M2/34 ,  G05D23/19

Abstract: A power supply adapter according to one aspect of the present disclosure includes a power cord, a power-source attachment portion, a working-machine attachment portion, a temperature detector, and an overheat determiner. The temperature detector is configured to detect temperature of the power cord and to output a detection signal indicating the temperature detected. The overheat determiner is configured to determine that the power cord is in an overheated state based on the detection signal from the temperature detector and to output an overheat determination result indicating that the power cord is in the overheated state.