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公开(公告)号：EP3975300A1
公开(公告)日：2022-03-30
申请号：EP19933491.3
申请日：2019-10-18
发明人： DONG, Zhijun , LIU, Jianan , XU, Zhongquan
摘要： Provided are a battery pack and a combination of a power tool and the battery pack. The battery pack includes a housing, a cell assembly, a cell support member, a first sensor, and a second sensor. The cell assembly is disposed in the housing; and the cell support member is at least configured to support the cell assembly. The cell assembly includes a plurality of cells which are sheet-shaped, the plurality of cells are stacked, and a cell among the plurality of cells includes an encapsulation member configured to encapsulate the cell and a tab disposed at at least one end of the cell assembly and protruding from the cell. The first sensor is configured to detect a temperature of the cell and disposed on a side of the tab facing towards the cell support member. The second sensor is configured to detect a parameter related to leakage of the cell and disposed in the cell assembly.
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公开(公告)号：EP4327980A2
公开(公告)日：2024-02-28
申请号：EP23190759.3
申请日：2023-08-10
发明人： LI, Yang , ZHAN, Rui , XU, Zhongquan , WANG, Rong , ZHANG, Yi
摘要： A power tool includes a housing, a motor, a ball sleeve, an oscillating member with a mounting portion, and an output shaft rotating around an output shaft axis. The oscillating member and the ball sleeve are engaged in an engagement region on the oscillating member, and the geometric center of the engagement region is an engagement center. A first plane bisects the first bearing assembly along a direction of the output shaft axis, and a second plane bisects the second bearing assembly along the direction of the output shaft axis. The height from the engagement center to the first plane is a first height H1, the height from the engagement center to the second plane is a second height H2, and the ratio H1/H2 of the first height H1 to the second height H2 is greater than or equal to 0.5 and less than or equal to 1.4.
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公开(公告)号：EP4437835A1
公开(公告)日：2024-10-02
申请号：EP23810913.6
申请日：2023-05-17
发明人： XU, Zhongquan , ZHU, Huaguo , ZHONG, Keqiong , E, Mingshun
摘要： Provided are a chainsaw and a handheld power tool. The handheld power tool includes a motor; a handle, where a first switch that can control the starting and stopping of the motor is disposed on the handle; an output assembly; and an adjustment device including a telescopic rod assembly, where the length of the adjustment device changes so that the handheld power tool has at least two working states, that is, a first working state and a second working state. The distance between the frontmost side of the handheld power tool and the rearmost side of the first switch is defined as the effective length of the handheld power tool; where when the handheld power tool is in the first working state, the handheld power tool has a first effective length T1; and when the handheld power tool is in the second working state, the handheld power tool has a second effective length T2; where the first effective length T1 is less than or equal to 1 m, and the second effective length T2 is greater than the first effective length T1. The chainsaw and the handheld power tool are convenient, lightweight, and flexible while satisfying the requirements of the user for different trimming heights.
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公开(公告)号：EP4327980A3
公开(公告)日：2024-05-08
申请号：EP23190759.3
申请日：2023-08-10
发明人： LI, Yang , ZHAN, Rui , XU, Zhongquan , WANG, Rong , ZHANG, Yi
CPC分类号： B24B23/04 , B24B27/065 , B24B27/0691 , B23D51/16 , B24B47/16 , B27B19/006 , B23D51/10 , B23D61/006 , B25F5/006 , B25F5/008
摘要： A power tool includes a housing, a motor, a ball sleeve, an oscillating member with a mounting portion, and an output shaft rotating around an output shaft axis. The oscillating member and the ball sleeve are engaged in an engagement region on the oscillating member, and the geometric center of the engagement region is an engagement center. A first plane bisects the first bearing assembly along a direction of the output shaft axis, and a second plane bisects the second bearing assembly along the direction of the output shaft axis. The height from the engagement center to the first plane is a first height H1, the height from the engagement center to the second plane is a second height H2, and the ratio H1/H2 of the first height H1 to the second height H2 is greater than or equal to 0.5 and less than or equal to 1.4.
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公开(公告)号：EP4205906A1
公开(公告)日：2023-07-05
申请号：EP21888313.0
申请日：2021-09-22
发明人： WANG, Pengchen , LI, Yang , XU, Zhongquan
IPC分类号： B25B21/00 , B23B45/02 , B25F5/00 , G05B19/416
摘要： Provided are a smart power tool and a control method thereof. The smart power tool includes: an output shaft (101), an electric motor (201), a housing (102), and an adjustment assembly (103); where the adjustment assembly is used for adjusting a working mode and outputting a mode signal, where the working mode includes a drill gear mode and a wood screw mode; in the drill gear mode, a detection unit (202) is used for detecting a current value; and a controller (203) is used for receiving the mode signal and determining a set of current variables according to the working mode and the detected current value; determining, according to the set of current variables, whether startup ends; determining a set of feature quantities according to the set of current variables after the startup ends; determining a type of a drill bit according to the set of feature quantities; and determining a working state of the smart power tool according to the set of current variables and/or the set of feature quantities and the type of the drill bit and when the smart power tool is in a drill-through state, controlling the electric motor to stop rotating; in the wood screw mode, the detection unit is used for detecting a bus current value; and the controller is used for determining a first detection value according to the detected bus current value; determining, according to the first detection value, whether startup ends; identifying a slip condition of the smart power tool according to the first detection value after the startup ends, and filtering a variation of the first detection value under the slip condition; determining a second detection value according to a first detection value after filtering; and if the first detection value after filtering and the second detection value satisfy a preset condition, triggering the smart power tool to shut down.
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公开(公告)号：EP4140646A1
公开(公告)日：2023-03-01
申请号：EP21831767.5
申请日：2021-06-23
发明人： XU, Zhongquan , SHI, Lingjian , LIU, Tianliang , FU, Mingtan , ZHANG, Lisong , XING, Li
摘要： A sanding tool includes a baseplate assembly, a housing assembly, a drive mechanism, and a fan assembly. The baseplate assembly includes a baseplate for mounting a sanding member. The housing assembly is disposed on the baseplate and includes a body housing. The drive mechanism is disposed in the body housing and drives the baseplate assembly to move. The housing assembly further includes a functional housing, where a hollow cavity is formed in the functional housing, the functional housing is provided with an inlet and an outlet that communicate with the cavity, the inlet communicates with a dust removal channel of the sanding tool, the outlet is configured to discharge gas in the cavity, and the fan assembly is used for forming a dust removal air path moving towards the inlet. The functional housing is disposed on a side of the body housing and a projection of the functional housing on a plane where the baseplate assembly is located is located within the baseplate; and a ratio of an area of a projection of the functional housing on the baseplate to an area of the baseplate is greater than or equal to 0.15 and less than or equal to 0.95.
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