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：US20230011055A1

公开(公告)日：2023-01-12

申请号：US17640643

申请日：2020-08-06

Applicant: MAKITA CORPORATION

Inventor： Hiroki KANEKO ,  Akira MIZUTANI ,  Ryosuke OTANI ,  Shunpei YAMAJI ,  Junya ISHIKAWA ,  Fumiyoshi SAITO

IPC: B25F5/02 ,  B24B47/12

Abstract: The disclosure discloses an electric power tool. The electric power tool may include a motor, a power transmission mechanism connected to the motor, a housing that houses the motor and the power transmission mechanism, an end tool holder to which an end tool is configured to be attached and from which the end tool is configured to be detached, and connected to the power transmission mechanism, and a handle attached to the housing. The electric power tool may be configured to prohibit rotation of the motor when a user is not gripping the handle.

公开(公告)号：US20160268647A1

公开(公告)日：2016-09-15

申请号：US15044593

申请日：2016-02-16

Applicant: MAKITA CORPORATION

Inventor： Takuya UMEMURA ,  Shunpei YAMAJI

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

CPC classification number: H01M10/443 ,  H01M10/486 ,  H02J7/0029 ,  H02J7/007 ,  H02J7/0091

Abstract: A battery-connection system in one aspect of the present disclosure comprises a battery pack and a connecting device. The connecting device comprises a temperature-related control unit that is configured to execute a specific temperature-related control in accordance with a detection signal outputted from the battery pack when the battery pack is attached to the connecting device, without identifying a type of a battery in the battery pack.

Abstract translation: 本公开的一个方面的电池连接系统包括电池组和连接装置。 连接装置包括温度相关控制单元，其被配置为当电池组附接到连接装置时，根据从电池组输出的检测信号执行特定的温度相关控制，而不识别电池的类型 在电池组中。

公开(公告)号：US20240055958A1

公开(公告)日：2024-02-15

申请号：US18267607

申请日：2021-12-15

Applicant: MAKITA CORPORATION

Inventor： Tsubasa YAGI ,  Hidekazu SUDA ,  Shunpei YAMAJI

IPC: H02K11/33 ,  B25F5/00

CPC classification number: H02K11/33 ,  B25F5/008 ,  H02K2211/03

Abstract: An electric work machine includes a motor, a circuit board, a case, at least one elastic member, and a filler. The circuit board includes a heat generating element mounted thereon, and the heat generating element generates heat due to the motor being driven. The case includes a heat dissipation part thermally coupled to the heat generating element and houses the circuit board therein. The at least one elastic member is placed between the circuit board and the case, and is housed inside the case. The filler is filled inside the case and fixes the circuit board and the at least one elastic member inside the case.

公开(公告)号：US20210220959A1

公开(公告)日：2021-07-22

申请号：US17273439

申请日：2019-09-06

Applicant: MAKITA CORPORATION

Inventor： Takashi MATSUBARA ,  Shunpei YAMAJI ,  Akira MIZUTANI ,  Ryosuke OTANI ,  Hiroki KANEKO

IPC: B24B23/00 ,  B24B23/02 ,  B24B55/05 ,  B25F5/02

Abstract: A power tool, such as a grinder, may include: a prime mover such as a motor; a power-transmission mechanism operably connected to the prime mover; a housing that houses the prime mover and the power-transmission mechanism; and a tool-accessory retaining part for holding a tool accessary. The tool-accessory retaining part is operably connected to the power-transmission mechanism. An accessory is mounted on the housing in a detachable manner. A link member moves in response to mounting and demounting of the accessory. A detection sensor is housed in an interior of the housing and includes a non-contact sensor device. The detection sensor is configured to detect movement of the link member using the non-contact sensor device.

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。