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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
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.
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公开(公告)号：US20170036359A1
公开(公告)日：2017-02-09
申请号：US15221253
申请日：2016-07-27
Applicant: MAKITA CORPORATION
Inventor： Hidekazu SUDA , Motohiro OMURA
Abstract: Electric scissors comprise a motor, a movable blade, a transmission mechanism, an operation device, an operation signal output device, a control device, a drive circuit, and a forced stop device. The forced stop device is configured to stop the motor when an abnormal state is present in which the value of the operation signal output from the operation signal output device is a value determined in the control device to rotate the motor in a specific rotation direction out of the first and the second rotation directions or to stop the motor, and in which the motor is rotating in a direction opposite to the specific rotation direction.
Abstract translation: 电动剪刀包括电动机，可动刀片，变速机构，操作装置，操作信号输出装置，控制装置，驱动电路和强制停止装置。 强制停止装置被配置为当存在从操作信号输出装置输出的操作信号的值是控制装置中确定的值以使电动机沿特定的旋转方向旋转的异常状态时停止电动机 第一和第二旋转方向或停止电动机，并且其中电动机沿与特定旋转方向相反的方向旋转。
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公开(公告)号：US20200067435A1
公开(公告)日：2020-02-27
申请号：US16462675
申请日：2017-11-22
Applicant: MAKITA CORPORATION
Inventor： Takeshi NISHIMIYA , Hidekazu SUDA
Abstract: An electric working machine in one aspect of the present disclosure includes: a motor; a driver to drive the motor; a first control circuit; and a second control circuit. The first control circuit controls the driver such that the motor rotates in a set rotation direction. The second control circuit is provided separately from the first control circuit. The second control circuit detects a rotation direction of the motor and performs an abnormality handling process to stop rotation of the motor in response to a situation where the detected rotation direction is reverse to the set rotation direction.
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Patent Agency Ranking
公开(公告)号：US20150340921A1
公开(公告)日：2015-11-26
申请号：US14711008
申请日：2015-05-13
Applicant: MAKITA CORPORATION
Inventor： Hidekazu SUDA , Masaaki FUKUMOTO , Kenta EGUCHI , Kazuya ARAKAWA , Takuya KUSAKAWA
Abstract: An electric power tool comprises: a motor configured to drive a tool; a control unit configured to control the motor; a communication board comprising an antenna and a communication circuit, which are configured to establish close-proximity wireless communication with an external communication terminal; and a housing configured to house the motor, the control unit, and the communication board. The housing comprises a grip portion having a hollow space, which is to be gripped by a user. The communication board is arranged inside the grip portion.
Abstract translation: 电动工具包括：电动机，其构造成驱动工具; 配置为控制所述电机的控制单元; 通信板，包括天线和通信电路，其被配置为与外部通信终端建立近距离无线通信; 以及壳体，其构造成容纳所述电动机，所述控制单元和所述通信板。 壳体包括具有中空空间的把手部分，该中空空间将被使用者抓住。 通信板布置在把手部分的内部。
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公开(公告)号：US20150222205A1
公开(公告)日：2015-08-06
申请号：US14612626
申请日：2015-02-03
Applicant: MAKITA CORPORATION
Inventor： Hidekazu SUDA
IPC: H02P3/02
CPC classification number: H02P3/02 , H02P29/0241
Abstract: A motor driven appliance in one aspect of embodiments of the present disclosure comprises a motor, a first switching element, a second switching element, an operation unit, a control unit, and a monitoring unit. The first and second switching elements are provided on a current path from a power source to the motor, and are connected in series to each other. The monitoring unit monitors an operating state of a protection function by the control unit, and, when the protection function is activated, outputs an OFF signal for turning off the second switching element.
Abstract translation: 本公开的实施例的一个方面的电动机驱动装置包括电动机，第一开关元件，第二开关元件，操作单元，控制单元和监视单元。 第一和第二开关元件设置在从电源到电动机的电流路径上，并且彼此串联连接。 监控单元通过控制单元监视保护功能的运行状态，并且当保护功能被激活时，输出用于关闭第二开关元件的OFF信号。
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公开(公告)号：US20230129772A1
公开(公告)日：2023-04-27
申请号：US18086811
申请日：2022-12-22
Applicant: MAKITA CORPORATION
Inventor： Takeshi NISHIMIYA , Hidekazu SUDA
Abstract: An electric working machine in one aspect of the present disclosure includes: a motor; a driver to drive the motor; a first control circuit; and a second control circuit. The first control circuit controls the driver such that the motor rotates in a set rotation direction. The second control circuit is provided separately from the first control circuit. The second control circuit detects a rotation direction of the motor and performs an abnormality handling process to stop rotation of the motor in response to a situation where the detected rotation direction is reverse to the set rotation direction.
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公开(公告)号：US20230077565A1
公开(公告)日：2023-03-16
申请号：US17903580
申请日：2022-09-06
Applicant: MAKITA CORPORATION
Inventor： Hidekazu SUDA
Abstract: An electric-powered wheelbarrow in one aspect of the present disclosure includes a motor, a wheel, an electromagnetic brake, a control circuit, a signal-processing circuit, and a drive circuit. The electromagnetic brake includes an electromagnetic coil. The electromagnetic brake (i) applies a braking force to the wheel in response to the electromagnetic coil being de-energized and (ii) releases the braking force from the wheel in response to the electromagnetic coil being energized. The control circuit outputs a first control signal and a second control signal. The signal-processing circuit receives the first and second control signals to thereby output a deactivating signal. The drive circuit receives the deactivating signal and delivers an excitation current to the electromagnetic coil.
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公开(公告)号：US20160064984A1
公开(公告)日：2016-03-03
申请号：US14819980
申请日：2015-08-06
Applicant: MAKITA CORPORATION
Inventor： Hidekazu SUDA , Takuya KUSAKAWA
IPC: H02J7/00
CPC classification number: H02J7/0063 , H02J50/10 , H02J2007/0095
Abstract: A motor-driven appliance comprises a drive source for driving a tool, a control unit, a power supply unit, a switch unit, a receiving unit, a supply signal output unit, and a data communication unit. The power supply unit generates a control voltage for operating the control unit. The switch unit supplies the control voltage to the control unit and stops supply of the control voltage to the control unit. The control voltage is supplied to the control unit while a given supply signal is inputted to the switch unit. The supply signal output unit outputs, to the switch unit, the supply signal for supplying the control voltage to the control unit when the receiving unit receives the electromagnetic wave while the supply of the control voltage to the control unit is stopped. The data communication unit outputs, to the control unit, the data contained in the electromagnetic wave.
Abstract translation: 电动机具包括用于驱动工具的驱动源，控制单元，电源单元，开关单元，接收单元，电源信号输出单元和数据通信单元。 电源单元产生用于操作控制单元的控制电压。 开关单元向控制单元提供控制电压，并停止向控制单元提供控制电压。 在将给定的电源信号输入到开关单元的同时，将控制电压提供给控制单元。 供电信号输出单元在接收到控制单元的控制电压被停止的同时接收到电磁波时向开关单元输出用于向控制单元提供控制电压的电源信号。 数据通信单元向控制单元输出包含在电磁波中的数据。
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