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公开(公告)号：EP4226756A1
公开(公告)日：2023-08-16
申请号：EP21905454.1
申请日：2021-11-22
发明人： HUANG, Cunrong , GAO, Qing , WANG, Hongwei
IPC分类号： A01D34/00
摘要： A charging station capable of guiding a self-driving device to interface includes a base plate (72) installed in a working area to fix the self-driving device (10); a first wire (73) surrounding on the base plate and connected to a signal generator (75) independently of a boundary; a second wire (74) surrounding on the base plate and connected to the signal generator independently of the boundary and the first wire; and the signal generator sending a guide signal to the first wire and/or the second wire; where multiple areas surrounded by the first wire and the second wire include at least a first area having a first magnetic field signal, a second area having a second magnetic field signal, and a third area having a third magnetic field signal.
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公开(公告)号：EP4043986A1
公开(公告)日：2022-08-17
申请号：EP20887633.4
申请日：2020-11-13
发明人： WANG, Hongwei , YANG, Dezhong , GAO, Qing
摘要： Provided is a smart mowing system. The smart mowing system includes a boundary line, a signal transmitting unit and a smart mower. The boundary line is configured to plan a working area of the smart mower. The signal transmitting unit is electrically connected to the boundary line and configured to generate a boundary signal and transmit the boundary signal to the boundary line. A magnetic field is generated when the boundary signal flows through the boundary line. The smart mower includes a second signal receiving module and a control module. The second signal receiving module is a preset distance away from a first signal receiving module. The control module is configured to determine whether the first signal receiving module is located inside the boundary line according to at least a first boundary line induction signal; to determine whether the second signal receiving module is located inside the boundary line according to at least a second boundary line induction signal; and when at least one of the first signal receiving module or the second signal receiving module is located outside the boundary line, to control the smart mower to walk basically along the boundary line.
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公开(公告)号：EP3699715A1
公开(公告)日：2020-08-26
申请号：EP18879877.1
申请日：2018-11-16
发明人： CHEN, Weipeng , WANG, Hongwei , YANG, Dezhong , KOU, Weibin
摘要： The present disclosure is an intelligent mowing system including an intelligent lawn mower including: a cutting blade for cutting grass; a deck for supporting the cutting blade; at least one wheel rotatably supporting the deck; a first drive motor to provide torque to the at least one wheel; a mowing path generation module to set multiple target positions on relative first virtual boundary and second virtual boundary of a mowable area boundary according to a preset path, and generate a mowing path from the target positions; a controller electrically connected to or communicated with a display interface and the mowing path generation module to control the intelligent lawn mower to perform mowing tasks along the mowing path generated by the mowing path generation module, and thus plans the mowing path accurately according to the target positions and reduces the offset degree from the mowing path.
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公开(公告)号：EP3290157A2
公开(公告)日：2018-03-07
申请号：EP17186375.6
申请日：2017-08-16
发明人： CHEN, Liang , WEI, Wei , WANG, Hongwei
CPC分类号： B24B55/00 , B24B23/028 , B25F5/008 , H02K9/06 , H02K11/33
摘要： An angle grinder (100) includes a housing (10) formed with a handle (12a), a clamping device (82) for mounting a grinding disk (92), an output shaft (84) for driving the clamping device (82) to rotate, a brushless motor (85) being provided with a motor shaft (851), a transmission mechanism (20) for transmitting power between the motor shaft (851) and the output shaft (84), and a circuit board assembly (30) for providing electricity to the brushless motor (85). The clamping device (82) is disposed outside of the housing (10) and connected with the output shaft (84). The output shaft (84) is at least partially disposed inside of the housing (10) and connected with the transmission mechanism (20). The brushless motor (85) is arranged between the transmission mechanism (20) and the circuit board assembly (30) in a direction substantially parallel to the motor shaft (851), and the motor shaft (851) is disposed along a direction substantially perpendicular to the output shaft (84).
摘要翻译： 一种角磨机（100）包括：形成有手柄（12a）的壳体（10）;用于安装研磨盘（92）的夹紧装置（82）;用于驱动夹紧装置（82）的输出轴 （851），用于在电机轴（851）和输出轴（84）之间传递动力的传动机构（20）以及电路板组件（30），所述电机轴（851） 用于向无刷电机（85）提供电力。 夹紧装置（82）设置在壳体（10）的外部并与输出轴（84）连接。 输出轴（84）至少部分地设置在壳体（10）的内部并与传动机构（20）连接。 无刷电机（85）在与电机轴（851）大致平行的方向上配置在传动机构（20）与电路板组装体（30）之间，电机轴（851）沿着大致垂直的方向 到输出轴（84）。
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公开(公告)号：EP3872978A1
公开(公告)日：2021-09-01
申请号：EP19890514.3
申请日：2019-11-28
发明人： ZHAO, Jinbiao , WANG, Hongwei
摘要： Disclosed is a chain saw and a power tool, including: a working part, a body, a brushless motor, a power supply device, a drive circuit, a controller, and a motion detection device; wherein the motion detection device is coupled to the body or the working part for detecting a motion of the body or the working part in at least one direction; the controller is configured to: when the amount of the motion of the body or the working part in at least one direction exceeds a predetermined threshold, control the drive circuit to make the brushless motor enter a braking mode. Further disclosed is a control method of the power tool.
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公开(公告)号：EP3780379A1
公开(公告)日：2021-02-17
申请号：EP19796882.9
申请日：2019-04-23
发明人： WANG, Hongwei , YANG, Dezhong , SUN, Yongan
摘要： A power tool and a control method, the power tool including: a functional component, a motor, a power supply module, a controller and a drive circuit including: a first drive terminal and a second drive terminal respectively electrically connected to a first power terminal and a second power terminal of the power supply module; multiple high-side switches, high-side terminals of the high-side switches being respectively electrically connected to the first drive terminal; and multiple low-side switches, low-side terminals of the low-side switches being respectively electrically connected to the second drive terminal. The controller is configured to: output a first control signal to one high-side switch to make it in an on or off state; and output a second control signal to one low-side switch to make it in the other state; wherein the low-side terminal of one high-side switch is connected to the high-side terminal of one low-side switch.
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公开(公告)号：EP3354410A1
公开(公告)日：2018-08-01
申请号：EP18151754.1
申请日：2018-01-16
发明人： WANG, Hongwei , XU, Qian
CPC分类号： H02P27/06 , B23D45/044 , B23D47/12 , B25F5/00 , H02P4/00
摘要： The present disclosure discloses an electric tool, including: a motor (130) including a plurality of windings; a power circuit (110) configured to selectively access a first power supply (111) and a second power supply (112) for supplying power for the motor (130); a connecting circuit (120) including a switching device configured to enable the connecting circuit to have a first connection state and a second connection state; and a signal source configured to send a first control signal, when the power circuit accesses the first power supply, to the switching device so that the connecting circuit is in the first connection state, and send a second control signal, when the power circuit accesses the second power supply, to the switching device so that the connecting circuit is in the second connection state. The electric tool has basically same output properties when accessing power supplies with different voltages.
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公开(公告)号：EP4206709A1
公开(公告)日：2023-07-05
申请号：EP22209534.1
申请日：2022-11-25
发明人： ZHAO, Chenyan , LI, Ju , WANG, Hongwei
IPC分类号： G01R31/3835 , G01R31/367 , H01M10/48 , H01M10/42
摘要： A state of charge (SOC) estimation method of a battery pack is provided. The method includes estimating an SOC of the battery pack based on a real-time current flowing through the battery pack, where the real-time current is estimated according to real-time parameters of the battery pack, at least part of the real-time parameters of the battery pack are capable of being acquired by querying a battery pack database with at least partially data preset. With the preceding technical solution, a battery pack can be provided which has a low cost and can accurately estimate the SOC of the battery pack without a current detection resistor.
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公开(公告)号：EP3932617A1
公开(公告)日：2022-01-05
申请号：EP19920695.4
申请日：2019-12-26
发明人： XU, Yanqing , YANG, Dezhong , WANG, Hongwei
摘要： Provided is a power tool including a motor, a power supply device, a driver circuit, a parameter acquisition module and a controller. The motor includes a stator and a rotor, and the motor is configured to generate a reluctance torque. The power supply device is configured to supply electrical energy to the motor. The driver circuit is electrically connected to the motor to drive the motor. The parameter acquisition module is configured to acquire a current of the motor, a rotational speed of the motor and a position of the rotor. The controller is configured to: according to at least one of the current of the motor, the rotational speed of the motor, or the position of the rotor, dynamically adjust a current applied to the stator so that an included angle between a stator flux linkage of the motor and a rotor flux linkage of the motor ranges from 90° to 135°.
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公开(公告)号：EP3290157B1
公开(公告)日：2019-07-24
申请号：EP17186375.6
申请日：2017-08-16
发明人： CHEN, Liang , WEI, Wei , WANG, Hongwei
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