公开(公告)号：US20210384802A1

公开(公告)日：2021-12-09

申请号：US17411132

申请日：2021-08-25

Applicant: DENSO CORPORATION

Inventor： Akito TAMURA ,  Yuki MAWATARI ,  Hiroyuki TSUCHIYA

IPC: H02K9/22 ,  H02K3/50 ,  H02K21/14

Abstract: In a rotating electrical machine, a holder member is disposed to be radially closer to an armature coil than to a magnetic field generator. The holder member is configured to hold the armature coil. The holder member has a first portion that faces a first end portion of the armature coil, and a second portion that faces a second end portion of the armature coil. The first portion of the holder member is thermally coupled to the first end portion of the armature coil. The second portion of the holder member is thermally coupled to the second end portion of the armature coil.

公开(公告)号：US20190149004A1

公开(公告)日：2019-05-16

申请号：US16244155

申请日：2019-01-10

Applicant: DENSO CORPORATION

Inventor： Akito TAMURA ,  Akira FUKUSHIMA

IPC: H02K3/28 ,  H02K1/16 ,  H02K3/12 ,  H02K3/50

Abstract: Each of phase windings includes parallel windings for each phase connected together in parallel, and the parallel windings include power-wire partial windings connected to a power supply side, neutral-line partial windings connected to a neutral point, and at least one of a set of 5-pitch and 7-pitch jumper wires, the power-wire partial windings, the neutral-wire partial windings, and the jumper wires being included in the plurality of partial windings forming the parallel windings. For two of the three phases, each of the 5-pitch jumper wires and a corresponding one of the 7-pitch jumper wires overlap each other, and for the remaining single phase, two of the 5-pitch jumper wires are spaced from each other in the circumferential direction, and each of the power-wire partial windings is adjacent to another power-wire partial winding for an identical phase or to a corresponding one of the neutral-line partial windings for a different phase.

公开(公告)号：US20170033630A1

公开(公告)日：2017-02-02

申请号：US15225305

申请日：2016-08-01

Applicant: DENSO CORPORATION

Inventor： Akito TAMURA

IPC: H02K3/12 ,  H02K3/30 ,  H02K3/18 ,  H02K1/14 ,  H02K1/16

CPC classification number: H02K3/12 ,  H02K3/18 ,  H02K3/28 ,  H02K3/30 ,  H02K3/52 ,  H02K3/521

Abstract: A stator includes a stator core having slots, a stator coil comprised of three phase windings, phase busbars each electrically connecting a corresponding one of the phase windings to an inverter, and a neutral busbar star-connecting the phase windings to define a neutral point therebetween. In each of the slots of the stator core, there are arranged K in-slot portions of the phase windings of the stator coil in K layers so as to be radially aligned with each other, where K is an even number. The phase and neutral busbars are electrically connected with those in-slot portions of the phase windings of the stator coil which are arranged at the radially outermost layer or the radially innermost layer in the respective slots of the stator core so as to be circumferentially spaced from one another by M slot-pitches or more, where M is a slot multiplier number.

Abstract translation: 定子包括具有槽的定子铁心，由三相绕组组成的定子线圈，每相电流将相应的一个相绕组电连接到逆变器的相母线，以及连接相绕组以在其间限定中性点的中性母线 。 在定子铁芯的每个槽中，定子线圈的相绕组的K个槽内部分布置成K个层，以使其彼此径向对准，其中K是偶数。 相位和中性母线与定子线圈的相绕组的槽内部分电气连接，定子线圈的相绕组布置在定子芯的相应槽中的径向最外层或径向最内层，以便与周向间隔开 另一个是M个时隙间距或更多，其中M是时隙乘数。

公开(公告)号：US20160248291A1

公开(公告)日：2016-08-25

申请号：US15048220

申请日：2016-02-19

Applicant: DENSO CORPORATION

Inventor： Akito TAMURA

IPC: H02K3/28 ,  H02K3/12

CPC classification number: H02K3/28 ,  H02K3/12 ,  H02K3/38

Abstract: A stator includes a stator core having slots arranged in a circumferential direction thereof at a predetermined pitch and a stator coil comprised of phase windings. Each of the phase windings is configured with an electric conductor and an insulating coat covering the electric conductor. Each of the phase windings includes in-slot portions and turn portions connecting the in-slot portions. The turn portions of the phase windings include a plurality of types of turn portions having different circumferential lengths. For each of the phase windings, apex parts of the turn portions of the phase winding are arranged in pairs over the entire circumferential range of the stator coil. The apex parts of each of the pairs axially overlap each other. Each circumferentially-adjacent pair of the apex parts of the turn portions of all the phase windings are circumferentially offset from each other by a distance greater than the predetermined pitch.

Abstract translation: 定子包括具有沿其圆周方向以预定间距布置的槽的定子芯和由相绕组构成的定子线圈。 每个相绕组配置有电导体和覆盖电导体的绝缘涂层。 每个相绕组包括连接槽内部分的槽内部分和转向部分。 相绕组的转弯部分包括具有不同圆周长度的多种类型的转弯部分。 对于每个相绕组，相绕组的转弯部分的顶点部分成对设置在定子线圈的整个周向范围上。 每对的顶点部分轴向重叠。 所有相绕组的转弯部分的每个周向相邻的一对顶点部分周向地彼此偏移大于预定间距的距离。

公开(公告)号：US20160248290A1

公开(公告)日：2016-08-25

申请号：US15048144

申请日：2016-02-19

Applicant: DENSO CORPORATION

Inventor： Akito TAMURA

IPC: H02K3/28 ,  H02K3/12

CPC classification number: H02K3/12 ,  H02K3/38

Abstract: A stator includes an annular stator core having slots arranged in a circumferential direction thereof and a stator coil comprised of phase windings. Each of the phase windings includes in-slot portions, each of which is received in one of the slots of the stator core, and turn portions each of winch is located outside the slots to connect one pair of the in-slot portions. Each of the turn portions includes an apex part that is furthest in the turn portion from an axial end face of the stator core and extends in the circumferential direction of the stator core. There are circumferentially-adjacent pairs of the turn portions over the entire circumferential range of the stator coil. For each of the circumferentially-adjacent pairs of the turn portions, the apex parts of the circumferentially-adjacent pair of the turn portions overlap each other in an axial direction of the stator core.

Abstract translation: 定子包括具有沿其圆周方向布置的槽的环形定子芯和由相绕组构成的定子线圈。 每个相绕组包括插槽部分，每个槽部分被容纳在定子芯的一个槽中，并且每个绞盘的转向部分位于槽的外部，以连接一对槽槽部分。 每个转弯部分包括在转子部分中距定子铁芯的轴向端面最远的顶点部分，并且在定子铁芯的圆周方向上延伸。 在定子线圈的整个圆周范围上具有周向相邻的匝部对。 对于周向相邻的匝部对中的每一个，周向相邻的一对匝部的顶点在定子芯的轴向上彼此重叠。

公开(公告)号：US20160020658A1

公开(公告)日：2016-01-21

申请号：US14801957

申请日：2015-07-17

Applicant: DENSO CORPORATION

Inventor： Akito TAMURA

IPC: H02K3/28 ,  H01R25/16 ,  H02K3/12 ,  H02K9/00

CPC classification number: H02K3/28 ,  H02K3/12 ,  H02K3/50 ,  H02K9/19 ,  H02K9/22 ,  H02K2203/09 ,  H02K2213/03

Abstract: In a stator of a rotating electric machine, an annular stator core has slots. A stator winding includes phase windings of three phases of differing electrical phases that are housed in the slots and wound around the stator core. Three phase bus bars electrically connect the respective phase windings to an external apparatus. Each of the phase windings are configured by multiple parallel windings. The phase bus bars are integrated with a fixing member to form a bus bar module. Each of the phase bus bars include branch portions and a trunk portion. The branch portions are electrically connected to the respective phase windings. The trunk portion electrically connects together the branch portions, and is configured that a cross-sectional area of an end portion closest to the phase winding is smaller than a cross-sectional area of an end portion closest to the external apparatus.

Abstract translation: 在旋转电机的定子中，环形定子铁芯具有槽。 定子绕组包括容纳在槽中并缠绕在定子芯上的不同电相的三相的相绕组。 三相母线将各相绕组电连接到外部装置。 每个相绕组由多个并联绕组构成。 相母线与固定构件一体形成母线模块。 每个相母线包括分支部分和主干部分。 分支部分电连接到各个相绕组。 主体部分将分支部分电连接在一起，并且被配置为最靠近相绕组的端部的横截面面积小于最靠近外部装置的端部的横截面面积。

公开(公告)号：US20140210304A1

公开(公告)日：2014-07-31

申请号：US14163412

申请日：2014-01-24

Applicant: Denso Corporation

Inventor： Akito TAMURA

IPC: H02K3/34

Abstract: A stator includes an annular stator core, a stator winding, and an insulating sheet member. In the stator core, slots are circumferentially arrayed. The stator winding includes conductor segments having oblique portions formed by open end portions being circumferentially twisted. The open end portions are inserted into the slots from one of two axial-direction sides and extend towards another one. The insulating sheet member is interposed between an inner wall surface of the slot and the conductor segment. The insulating sheet member is rolled into a cylindrical shape along the inner wall surface of the slot, and includes an overlapping portion and a slack portion. In the overlapping portion, two circumferential-direction end portions overlap each other. The overlapping portion is disposed on one of two radial-direction sides of each of the slots. The slack portion is disposed on another one of two radial-direction sides of each of the slots.

Abstract translation: 定子包括环形定子芯，定子绕组和绝缘片构件。 在定子芯中，槽周向排列。 定子绕组包括具有由周向扭转的开放端部形成的倾斜部分的导体段。 开放端部从两个轴向侧之一插入槽中并向另一个方向延伸。 绝缘片构件插入在槽的内壁表面和导体段之间。 绝缘片材沿着槽的内壁表面滚动成圆柱形，并且包括重叠部分和松弛部分。 在重叠部分中，两个圆周方向端部彼此重叠。 重叠部分设置在每个狭槽的两个径向方向侧之一上。 松弛部分设置在每个狭槽的两个径向方向侧的另一个上。

公开(公告)号：US20140070639A1

公开(公告)日：2014-03-13

申请号：US14020753

申请日：2013-09-06

Applicant: DENSO CORPORATION

Inventor： Akito TAMURA

IPC: H02K9/00

Abstract: A rotary electric machine includes a rotor, a stator disposed facing the rotor in a radial direction having a stator core with a plurality of slots aligned in a circumferential direction and a stator winding wound around the slots of the stator core, and a cooling mechanism for cooling first and second coil-end groups of the stator winding by dropping a liquid coolant from an outer peripheral side thereof. The stator is disposed along an inner circumferential surface of at least one of the first and the second coil-end groups of the stator winding, and there is provided a shielding member for preventing the liquid coolant from falling into the inner circumferential side of the first and the second coil-end groups. Thus, it is possible to cool throughout the first and the second coil-end groups efficiently and reliably by the liquid coolant, a sufficient cooling effect can be obtained.

Abstract translation: 一种旋转电机，包括：转子，定子，沿径向方向与转子相对设置，具有定子芯，多个定子芯沿圆周方向排列;定子绕组绕定子铁心的槽;以及冷却机构， 通过从其外周侧滴下液体冷却剂来冷却定子绕组的第一和第二线圈端组。 定子沿着定子绕组的第一和第二线圈端组中的至少一个的内圆周表面设置，并且设置有用于防止液体冷却剂落入第一和第二线圈端部的内周侧的屏蔽构件 和第二线圈端组。 因此，可以通过液体冷却剂有效且可靠地冷却第一和第二线圈端组，可以获得足够的冷却效果。