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公开(公告)号：US20240333090A1
公开(公告)日：2024-10-03
申请号：US18738686
申请日：2024-06-10
发明人： Jialin ZHOU , Qingquan FAN , Hongxiao WANG
摘要： A drive part, a power assembly, and an electric bicycle are provided. The drive part includes a central shaft, a shaft sleeve, a first clutch, a second clutch, and a power input member. The shaft sleeve is sleeved on the central shaft. The shaft sleeve and the central shaft are coaxially provided. The shaft sleeve and the central shaft unidirectionally transmit power by means of the first clutch. The power input member and the shaft sleeve unidirectionally transmit power through the second clutch.
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2.发明公开公开(公告)号：US20240322715A1
公开(公告)日：2024-09-26
申请号：US18734428
申请日：2024-06-05
发明人： Hong BIN , Kai ZHANG , Xiaoan ZHAO , Haijin YANG
摘要： A single-resistor measurement method, a motor control method, a controller, and a control system are provided. A direct-current bus current flowing through a single sampling resistor is obtained. When a lower tube of a phase bridge arm is switched on, a switch-on current is determined based on the direct-current bus current, and an on-tube voltage drop is obtained. A switch-on resistance is determined based on the switch-on current and the on-tube voltage drop. A three-phase current outside a current measurement dead zone is determined based on the direct-current bus current. A three-phase current inside the current measurement dead zone is determined based on the on-tube voltage drop and the switch-on resistance. A three-phase feedback current of the motor is determined based on the three-phase current outside the current measurement dead zone and the three-phase current inside the current measurement dead zone.
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公开(公告)号：US20240186851A1
公开(公告)日：2024-06-06
申请号：US18413609
申请日：2024-01-16
申请人： GUANGDONG WELLING MOTOR MANUFACTURING CO., LTD. , MIDEA WELLING MOTOR TECHNOLOGY (SHANGHAI) CO., LTD.
发明人： Xiong YANG , Wenrui LI
CPC分类号： H02K1/2766 , H02K1/16 , H02K2213/03
摘要： A rotor structure, an electric motor structure and a clothing treating device are provided. The rotor structure includes a rotor iron core, a permanent magnet and a magnetic barrier. The rotor iron core includes rotor punching sheets arranged in a stacked manner. Permanent magnet slots are provided in the rotor iron core and the permanent magnet is disposed in the permanent magnet slots. The rotor structure rotates in one direction or two directions in a circumferential direction. In the rotation direction of the rotor structure, the magnetic barrier is provided on at least one side of the permanent magnet slot, and two ends of the magnetic barrier face an outer edge of the permanent magnet and an outer edge of the rotor iron core, respectively. The magnetic barrier is provided on a first punching sheet or a second punching sheet of the rotor punching sheets.
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公开(公告)号：US11952700B2
公开(公告)日：2024-04-09
申请号：US18177518
申请日：2023-03-02
发明人： Lei Xu , Liming Gong , Xiangnan Qin
IPC分类号： D06F33/48 , D06F34/18 , D06F103/04 , D06F103/46 , D06F105/48 , D06F33/40 , D06F37/42
CPC分类号： D06F33/48 , D06F33/40 , D06F34/18 , D06F37/42 , D06F2103/04 , D06F2103/46 , D06F2105/48
摘要： A drum washing machine, and a control method and a control apparatus for same are provided. The control method for the drum washing machine comprises the following steps: acquiring an average starting power of a drum in a starting process of the drum; acquiring a load range to which a current load of the drum belongs according to the average starting power; and setting a weighing protection velocity fluctuation threshold according to the load range to which the current load of the drum belongs. A value of the current load is obtained by using a correspondence between load with different weights and average starting powers. A weighing protection velocity fluctuation threshold is set according to the value of the current load to avoid the collision with the drum and non-dehydration in case of only one piece of clothing.
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公开(公告)号：US20230203733A1
公开(公告)日：2023-06-29
申请号：US18177518
申请日：2023-03-02
发明人： Lei XU , Liming GONG , Xiangnan QIN
IPC分类号： D06F33/48
摘要： A drum washing machine, and a control method and a control apparatus for same are provided. The control method for the drum washing machine comprises the following steps: acquiring an average starting power of a drum in a starting process of the drum; acquiring a load range to which a current load of the drum belongs according to the average starting power; and setting a weighing protection velocity fluctuation threshold according to the load range to which the current load of the drum belongs. A value of the current load is obtained by using a correspondence between load with different weights and average starting powers. A weighing protection velocity fluctuation threshold is set according to the value of the current load to avoid the collision with the drum and non-dehydration in case of only one piece of clothing.
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公开(公告)号：US11618987B2
公开(公告)日：2023-04-04
申请号：US15882830
申请日：2018-01-29
发明人： Lei Xu , Liming Gong , Xiangnan Qin
IPC分类号： D06F33/48 , D06F34/18 , D06F103/04 , D06F103/46 , D06F105/48 , D06F37/42 , D06F33/40
摘要： A drum washing machine, and a control method and a control apparatus for same are provided. The control method for the drum washing machine comprises the following steps: acquiring an average starting power of a drum in a starting process of the drum; acquiring a load range to which a current load of the drum belongs according to the average starting power; and setting a weighing protection velocity fluctuation threshold according to the load range to which the current load of the drum belongs. A value of the current load is obtained by using a correspondence between load with different weights and average starting powers. A weighing protection velocity fluctuation threshold is set according to the value of the current load to avoid the collision with the drum and non-dehydration in case of only one piece of clothing.
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公开(公告)号：US11177727B2
公开(公告)日：2021-11-16
申请号：US16346168
申请日：2016-12-12
申请人： GUANGDONG WELLING MOTOR MANUFACTURING CO., LTD. , MIDEA WELLING MOTOR TECHNOLOGY (SHANGHAI) CO., LTD.
发明人： Di Wu , Jintao Chen , Ziqiang Zhu , Yiming Hu , Hongxiao Wang
摘要： An electric motor (100) includes an excitation stator (10), a salient-pole rotor (20) and an excitation rotor (30), any two of the excitation stator (10), the salient-pole rotor (20) and the excitation rotor (30) being rotatable relative to each other; and a switching actuator (50) configured to select at least one of the salient-pole rotor (20) and the excitation rotor (30) to serve as a rotor rotatable relative to the excitation stator (10) by selectively fixing relative positions of two of the excitation stator (10), the salient-pole rotor (20) and the excitation rotor (30).
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公开(公告)号：US10676853B2
公开(公告)日：2020-06-09
申请号：US15882822
申请日：2018-01-29
发明人： Lei Xu , Liming Gong , Xiangnan Qin
摘要： The present disclosure relates to a front-loading washing machine and an unbalance detection method and device thereof. The method comprises: when a drum operates at a low constant speed, detecting the torque of the drum and acquiring average torque values; when the roller operates at a constant acceleration speed, acquiring average torque values and a minimum value of the average torque values of the drum in real time; determining whether a difference between the average torque and the minimum value of the average torque values is greater than a preset unbalance threshold; and if so, determining that dynamic unbalance occurs on the drum; otherwise determining that no dynamic unbalance occurs on the drum. Because no sensor is needed for unbalance detection, cost and the detection difficulty are lowered, and damages to mechanical components due to collisions caused by dynamic unbalance when the drum operates at a high speed is avoided.
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公开(公告)号：US20170272010A1
公开(公告)日：2017-09-21
申请号：US15505283
申请日：2014-08-21
发明人： Yanchao Fu , Zhiqiang Ge , Jie Jie , Xiaoan Zhao , Liming Gong
摘要： The present invention is applicable to the motor field, and provides a method and apparatus for driving motor and appliance. When a rotor of a motor rotates, a current angle of the rotor is detected at a current moment by using a Hall sensor, a back electromotive force of the motor is detected at the current moment, and a phase current of the motor is detected at the current moment; a target torque coefficient is detected by using a relational model for a back electromotive force and a torque coefficient according to the back electromotive force; a current torque coefficient is detected by using a relational model for a phase current and a torque coefficient according to the detected phase current; and a compensation angle is detected according to a rotor angle compensation model if a difference between the current torque coefficient and the target torque coefficient is outside a first error range; and the current angle is compensated by using the compensation angle, to obtain an adjustment angle; and power supply to the motor is adjusted according to the adjustment angle by using a field orientation technology. Therefore, active power required by the motor to drive a same load torque can be reduced, and a phase current required by the motor is correspondingly reduced.
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10.发明申请MOTOR STATOR, METHOD FOR PREPARING THE MOTOR STATOR AND MOTOR COMPRISING THE MOTOR STATOR 审中-公开电动机定子，制动电机定子的方法和包括电动机定子的电动机公开(公告)号：US20150214803A1
公开(公告)日：2015-07-30
申请号：US14288548
申请日：2014-05-28
发明人： Shoujun Zhang , Wen Fan , Kebin Chen
CPC分类号： H02K3/345 , H02K1/16 , H02K3/38 , H02K2213/03 , Y10T29/49009
摘要： A motor stator includes a stator core, first and second insulating members and a stator winding. The stator core defines upper and lower ends and has a central through hole and a plurality of stator slots distributed along a circumferential direction of the stator core, and each stator slot includes first and second slot segments. The first insulating member is disposed in the stator slot. The second insulating member is disposed at at least one of the upper and lower ends of the stator core, and defines a central hole and a plurality of grooves corresponding to the plurality of stator slots respectively. A flange is formed on the second insulating member along a peripheral of the groove and fitted within the second slot segment. The stator winding is wound on the stator core and passing through the plurality of stator slots and grooves.
摘要翻译： 电动机定子包括定子铁心，第一和第二绝缘构件和定子绕组。 定子铁芯限定上端和下端，并具有中心通孔和沿着定子铁心圆周方向分布的多个定子槽，每个定子槽包括第一和第二槽段。 第一绝缘构件设置在定子槽中。 第二绝缘构件设置在定子铁心的上端和下端中的至少一个上，并且分别限定对应于多个定子槽的中心孔和多个槽。 凸缘沿着凹槽的周边形成在第二绝缘构件上并且装配在第二槽段内。 定子绕组缠绕在定子铁芯上并通过多个定子槽和槽。
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