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公开(公告)号：US20200067441A1
公开(公告)日：2020-02-27
申请号：US16465476
申请日：2017-12-06
Applicant: MOTEURS LEROY-SOMER
Inventor： Eric Coupart , Christian Andrieux , Michael McClelland
Abstract: Method for controlling the speed of rotation of an electric motor by means of a variable speed drive supplied with power by a mains electrical power supply, in which method in a variable speed mode of operation the motor is supplied with power by the variable speed drive and in a fixed speed mode of operation the motor is supplied with power directly by the mains supply, and in which method before the changeover from the supply of power by the variable speed drive to the direct supply of power by the mains supply, the motor is first accelerated by the variable speed drive, the variable speed drive operating beyond its nominal current during the acceleration preceding the changeover.
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公开(公告)号：US20160380490A1
公开(公告)日：2016-12-29
申请号：US15192239
申请日：2016-06-24
Applicant: MOTEURS LEROY SOMER
Inventor： Michael McClelland , Ioan Deac , Aurélien Courage , Alexis Dutau
CPC classification number: H02K1/20 , H02K1/16 , H02K1/185 , H02K5/00 , H02K5/04 , H02K5/225 , H02K7/14 , H02K9/06 , H02K2201/06
Abstract: The invention relates to an electric machine comprising a stator, this stator comprising a set (10) of magnetic laminations which is made up of at least one first subset (50) and of at least one second subset (60) adjacent to the first the laminations of the first and second subsets having parts which become superposed, each comprising at least one closed channel formed within the laminations, the laminations being identical but angularly offset from one another by an angle 360°/n about the axis of the machine, where n is a non-zero integer, the laminations being without symmetry in a rotation by 360°/n so that the parts of the laminations thus offset which become superposed are nonidentical and create the said perturbation in the flow at the transition between the channels of the first and second subsets.
Abstract translation: 本发明涉及一种包括定子的电机，该定子包括由至少一个第一子集（50）和与第一子集（50）相邻的至少一个第二子集（60）组成的一组（10）的磁性叠片 第一和第二子集的叠片具有成为重叠的部分，每个包括形成在叠片内的至少一个闭合通道，所述叠片相对于所述机器的轴线彼此相同但以角度360°/ n的角度偏移，其中 n是非零整数，叠片在360°/ n的旋转中没有对称性，使得由此偏移的层叠部分变得叠加是不相同的，并且在通道之间的过渡处的流动中产生所述扰动 第一和第二个子集。
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公开(公告)号：US10355542B2
公开(公告)日：2019-07-16
申请号：US15192239
申请日：2016-06-24
Applicant: MOTEURS LEROY SOMER
Inventor： Michael McClelland , Ioan Deac , Aurélien Courage , Alexis Dutau
IPC: H02K1/20 , H02K5/15 , H02K9/06 , H02K1/18 , H02K5/00 , H02K5/04 , H02K7/14 , H02K1/16 , H02K5/22
Abstract: The invention relates to an electric machine comprising a stator, this stator comprising a set (10) of magnetic laminations which is made up of at least one first subset (50) and of at least one second subset (60) adjacent to the first the laminations of the first and second subsets having parts which become superposed, each comprising at least one closed channel formed within the laminations, the laminations being identical but angularly offset from one another by an angle 360°/n about the axis of the machine, where n is a non-zero integer, the laminations being without symmetry in a rotation by 360°/n so that the parts of the laminations thus offset which become superposed are nonidentical and create the said perturbation in the flow at the transition between the channels of the first and second subsets.
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