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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：EP4391284A1
公开(公告)日：2024-06-26
申请号：EP22897739.3
申请日：2022-11-21
发明人： YANG, Dezhong
IPC分类号： H02J7/00
CPC分类号： H02J7/00
摘要： Provided is an energy supply device for supplying power to a power tool. The energy supply device includes a housing detachably connected to the power tool in a mating manner and supported by the power tool; multiple cells supported by the housing of the energy supply device; a charging terminal assembly configured to be electrically connected to a charging apparatus to charge the energy supply device; and a discharge terminal assembly configured to be electrically connected to the power tool to provide electrical energy for the power tool. A charge rate of the energy supply device is greater than or equal to 6C.
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公开(公告)号：EP4190140A1
公开(公告)日：2023-06-07
申请号：EP22827409.8
申请日：2022-06-13
发明人： YANG, Dezhong , LIU, Yangzi , LI, Li , LI, Ju , LU, Changhai
摘要： Provided is an outdoor moving device. The outdoor moving device includes a main body, a moving wheel set, a first energy storage device, a second energy storage device, and a connection assembly. The moving wheel set includes moving wheels supporting the main body. The first energy storage device is configured to be capable of supplying power to the outdoor moving device and includes at least one first energy storage unit. The second energy storage device is configured to be capable of supplying power to the outdoor moving device and includes at least one second energy storage unit. The connection assembly is used for mounting the second energy storage device to the main body. The first energy storage device is detachably mounted to the main body, the first energy storage device is further configured to be detachable from the main body to supply power to another power tool, the first energy storage unit includes a first positive electrode made of a first material, and the second energy storage unit includes a second positive electrode made of a second material. The outdoor moving device performs discharging more flexibly and has an improved lifetime.
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公开(公告)号：EP4108066A3
公开(公告)日：2023-03-29
申请号：EP22178263.4
申请日：2022-06-10
发明人： YANG, Dezhong , LIU, Yangzi , LI, Li , LI, Ju
摘要： A riding lawn mower, including: a frame; a seat (111); a walking assembly (120) and a walking motor (130); a cutting assembly and a driving motor (141) configured to drive the cutting assembly; a first energy storage device (150) configured to supply power to at least one of the walking motor (130) or the driving motor (141), the first energy storage device (150) including at least one first energy storage unit, the first energy storage device (150) detachably mounted to the frame and enabled to supply power to a handheld power tool (200a,200b,200c) when detached from the riding lawn mower; and a second energy storage device (160) configured to supply power to at least one of the walking motor (130) or the driving motor (141), the second energy storage device (160) including at least one second energy storage unit; wherein an energy density of the second energy storage unit is different from an energy density of the first energy storage unit.
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公开(公告)号：EP4129041A1
公开(公告)日：2023-02-08
申请号：EP22793367.8
申请日：2022-03-25
发明人： ZHU, Ronggen , REN, Yufei , YANG, Dezhong
摘要： Provided is a rear-moving self-propelled working machine. The rear-moving self-propelled working machine includes a main machine and a handle device. The main machine includes a moving assembly and a motor for driving the moving assembly. The handle device is connected to the main machine and includes an operation member, a connecting rod assembly, a housing, a sensing device, and a trigger assembly. The operation member includes a grip for a user to hold. The connecting rod assembly includes a first connecting rod connected to the main machine. The housing is formed with a first accommodation cavity, where the first connecting rod extends into the first accommodation cavity. The sensing device is used for sensing a thrust applied to the handle device to drive the rear-moving self-propelled working machine. The trigger assembly is capable of applying a force to the sensing device when the grip receives the thrust. The trigger assembly is connected to the connecting rod assembly, and the sensing device is connected to the operation member.
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公开(公告)号：EP3698618A1
公开(公告)日：2020-08-26
申请号：EP18879878.9
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: a base station to receive at least one kind of satellite positioning signal sent by the satellite system at a fixed location; an intelligent lawn mower including: a mobile station group mounted on the intelligent lawn mower and communicated with the base station to receive at least one kind of satellite positioning signal sent by the satellite system during the walking process of the intelligent lawn mower, wherein the mobile station group includes at least a first mobile station and a second mobile station arranged at intervals that determines the posture of the intelligent lawn mower; a controller configured to control the intelligent lawn mower to generally walk within the predetermined line width, and thus increase the accuracy of mowing along a preset path by acquiring the posture information of the intelligent lawn mower.
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公开(公告)号：EP3439134A1
公开(公告)日：2019-02-06
申请号：EP18179064.3
申请日：2018-06-21
发明人： YANG, Dezhong , XIANG, Yingdian , ZHU, Hong , LU, Zhijian
摘要： Provided is a charging device for charging an electric energy storage. The charging device includes: a power supply circuit connected to a power supply; an alternating current conversion circuit configured to convert a current from the power supply connected to the power supply circuit to a first alternating current with a preset frequency value; a transformer configured to convert the first alternating current to a second alternating current, a voltage value corresponding to the second alternating current being less than a voltage value corresponding to the first alternating current; and a direct current voltage conversion circuit configured to convert the second alternating current to a direct current with a waveform fluctuating in a preset range, so as to charge the electric energy storage; the alternating current conversion circuit is connected to the power supply circuit; the transformer is connected to the alternating current conversion circuit; and the direct current voltage conversion circuit is connected to the transformer. The charging device has advantages of low cost, long service life and high charging efficiency.
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公开(公告)号：EP4429003A1
公开(公告)日：2024-09-11
申请号：EP24153811.5
申请日：2024-01-25
发明人： YANG, Dezhong , HU, Guiwu
IPC分类号： H01M50/247
CPC分类号： H01M50/247 , H01M2220/3020130101
摘要： Provided are a power tool and a battery pack. The power tool includes a tool body; an electric motor disposed in the tool body; and a power interface configured to be connected to a battery pack for supplying power to the electric motor. The battery pack includes a housing assembly; a battery cell module disposed in the housing assembly and including at least multiple battery cells; a circuit board disposed in the housing assembly and electrically connected to the multiple battery cells; a battery terminal electrically connected to the multiple battery cells to connect the multiple battery cells to an electrical device for transmitting electric power; and a polyurea coating applied to at least part of the housing assembly.
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公开(公告)号：EP4293459A1
公开(公告)日：2023-12-20
申请号：EP22790787.0
申请日：2022-03-24
发明人： CHEN, Si , LI, Donghai , YANG, Dezhong
IPC分类号： G05D1/02
摘要： Provided are an intelligent mowing system and an intelligent mowing device. The system includes a working region defined by a first boundary line, a non-working region defined by a second boundary line, and an intelligent mowing device. The system further includes: a control module configured to control the intelligent mowing device to walk in the working region, on the first boundary line, or on the second boundary line; a positioning module configured to position position information of the intelligent mowing device; and a data acquisition module configured to acquire regional data about a preset range from a current position of the intelligent mowing device, where the preset range is greater than or equal to zero. The control module is configured to: acquire the regional data of the intelligent mowing device when the intelligent mowing device works in a boundary walk mode in which a walk along the first boundary line or the second boundary line is performed; and control, according to the relationship between the regional data and a data threshold, the intelligent mowing device to walk along the first boundary line.
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公开(公告)号：EP4290662A1
公开(公告)日：2023-12-13
申请号：EP22787281.9
申请日：2022-03-03
发明人： HU, Guiwu , YANG, Dong , GONG, Binbin , YANG, Dezhong , DUAN, Junya
IPC分类号： H01M50/258
摘要： Provided are a battery pack and a power tool. The battery pack includes a housing; a cell assembly including multiple stacked cell units; elastic pads separately disposed between adjacent ones of the multiple cell units, where air cavities are formed between the elastic pads and the adjacent ones of the multiple cell units; a sealing member disposed at least on the surface of the cell assembly, where the sealing member and the housing form a sealed chamber; and an air-permeable element partially disposed on the side surface of the cell assembly and extending into multiple air cavities along the first direction, where the air-permeable element connects with the air outside the sealed chamber.
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