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公开(公告)号：US20130076188A1
公开(公告)日：2013-03-28
申请号：US13625098
申请日：2012-09-24
IPC分类号： H02K3/28
CPC分类号： H02K3/28
摘要： An electric rotating machine includes a rotor and a stator. The rotor has a plurality of pairs of magnetic poles. The stator includes a stator core and a stator coil that is comprised of a plurality of phase windings wound on the stator core. The stator core has, for each of the phase windings of the stator coil, n circumferentially-consecutive single-phase slots, in which only the phase winding is received, per magnetic pole of the rotor, where n is a natural number not less than 2. Each of the phase windings of the stator coil has first to kth sections that are sequentially arranged from one end to the other end of the phase winding, where k is a natural number not less than 2. The first section is received in different ones of the single-phase slots for the phase winding from the kth section.
摘要翻译： 旋转电机包括转子和定子。 转子具有多对磁极。 定子包括定子芯和定子线圈，定子线圈由缠绕在定子芯上的多个相绕组构成。 对于定子线圈的每个相绕组，定子铁心对转子的每个磁极具有n个沿周向连续的单相槽，其中只有相绕组被接收，其中n是不小于 定子线圈的每个相绕组具有从相绕线的一端到另一端依次布置的第一至第k个部分，其中k是不小于2的自然数。第一部分被接收在不同的 用于从第k部分的相绕组的单相槽中的一个。
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公开(公告)号：US20190280548A1
公开(公告)日：2019-09-12
申请号：US16423737
申请日：2019-05-28
申请人： DENSO CORPORATION
摘要： In a rotating electric machine, a stator includes a stator core and three phase windings. In the stator core, a plurality of slots arrayed in a circumferential direction are formed. The three phase windings are wound around the stator core. The three phase windings include first, second, and third windings. One end of the first winding is provided further towards an outer side of the stator in a radial direction than a division line that divides the slot into two in the radial direction of the stator. One end of the second winding is provided further towards an inner side of the stator in the radial direction than the division line. One end of the third winding is provided between the one end of the first winding and the one end of the second winding relative to the radial direction of the stator, with at least a single slot therebetween.
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公开(公告)号：US20210234491A1
公开(公告)日：2021-07-29
申请号：US17232289
申请日：2021-04-16
申请人： DENSO CORPORATION
IPC分类号： H02P27/06 , H02M7/5387 , H02P25/22 , H02P23/14
摘要： The present disclosure provides a power conversion apparatus converting a power from a DC power source, supplying the converted power to a rotary electric machine to drive the rotary electric machine. The power conversion apparatus according to the present disclosure includes: a first inverter circuit electrically connected to a first end of each of phase winding, transmitting power between respective phase windings and the DC power source; a second inverter circuit electrically connected to a second end each of phase winding, transmitting power between respective phase windings and the DC power source; and a control unit controlling the first inverter circuit and the second inverter circuit. The control unit is configured to change a total amount of current flowing through respective phase windings depending on a rotational speed of the rotary electric machine.
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公开(公告)号：US20210297006A1
公开(公告)日：2021-09-23
申请号：US17339279
申请日：2021-06-04
申请人： DENSO CORPORATION
摘要： In a power converter for converting DC power from a DC power source into AC power and supplying the AC power to a single-phase winding or multi-phase windings, a controller controls first and second inverter circuits and performs first power conversion control to lock open/closed states of switching elements in the second inverter circuit and switch open/closed states of switching elements in the first inverter circuit, and second power conversion control to lock open/closed states of the switching elements in the first inverter circuit and switch open/closed states of the switching elements in the second inverter circuit. The controller is configured to perform either the first power conversion control or the second power conversion control when an effective value of drive current through each winding is less than a threshold, and otherwise switch between the first power conversion control and the second power conversion control.
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公开(公告)号：US20190386599A1
公开(公告)日：2019-12-19
申请号：US16442606
申请日：2019-06-17
发明人： Yoshimitsu TAKAHASHI , Masahito FUJIEDA , Tetsuya YAMADA , Ryuji OMATA , Kiyotaka MATSUBARA , Makoto NAKAMURA , Daigo NOBE
摘要： A drive system for an electric motor includes a first inverter that includes first switching elements, a second inverter that includes second switching elements, and a control unit that includes a first inverter control calculation section controlling on-off operation of each of the first switching elements based on a first carrier wave and a first modulation wave, a second inverter control calculation section controlling on-off operation of each of the second switching elements based on a second carrier wave and a second modulation wave, and a control synchronization section synchronizing the first carrier wave with the second carrier wave. When a sum of voltages of the first voltage source and the second voltage source is more than a voltage determination threshold, and torque of a rotating electric machine is smaller than a torque determination threshold, the control synchronization section synchronizes the first carrier wave with the second carrier wave.
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公开(公告)号：US20150244227A1
公开(公告)日：2015-08-27
申请号：US14627326
申请日：2015-02-20
申请人： DENSO CORPORATION
摘要： A rotary electric machine includes a rotor and a stator. A stator core has n in-phase slots provided in the circumferential direction and correspond to magnetic poles, and into each of which phase windings of the same phase are installed. Each of the phase windings is divided into 2n portions in an extending direction so that each of the phase windings is configured by a first partial winding, a second partial winding, . . . , and a 2n-th partial winding arranged from one end positioned in the extending direction in sequence. The first partial winding and the 2n-th partial winding are inserted into different in-phase slots of the stator core. Counted from one end positioned in the extending direction, the 2m-th (1≦m≦n) partial winding at an even-numbered position and the (2m−1)-th partial winding are inserted into different in-phase slots of the stator core.
摘要翻译： 旋转电机包括转子和定子。 定子铁芯具有在圆周方向上设置并且对应于磁极的n个同相槽，并且分别安装在相位相的每个相绕组中。 每个相绕组在延伸方向被分成2n个部分，使得每个相绕组由第一部分绕组，第二部分绕组构成。 。 。 以及从沿着延伸方向依次定位的一端布置的第2n部分卷绕。 第一部分绕组和第2n部分绕组被插入到定子芯的不同的同相槽中。 从位于延伸方向的一端计数，偶数位置的第2m（1＆nlE; m＆nlE; n）个部分绕组和第（2m-1）部分绕组插入到 定子铁芯。
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