公开(公告)号：US20160329766A1

公开(公告)日：2016-11-10

申请号：US15108952

申请日：2014-12-03

Applicant: Hitachi, Ltd.

Inventor： Yuichiro TANAKA ,  Koichi WATANABE ,  Satoshi KIKUCHI ,  Akihito NAKAHARA ,  Kenta DEGUCHI

IPC: H02K3/28 ,  H02K3/48 ,  H02K3/12 ,  H02K21/24 ,  H02K1/18 ,  H02K1/27

CPC classification number: H02K3/28 ,  H02K1/182 ,  H02K1/2793 ,  H02K3/12 ,  H02K3/48 ,  H02K21/24 ,  H02K2213/03

Abstract: Stator coils each consist of a plurality of rectangular conductor coil pieces, the adjacent connection ends of which are connected to each other on the outer diameter side of a stator. The coil pieces each have: a folded portion folded in a rotation axis direction on the inner diameter side of the stator; inner diameter-side open leg portions opened from both sides of the folded portion toward the circumferential directions of the rotation axis; linear portions each bent from each of the inner diameter-side open leg portions and disposed so as to pass through the stator from the inner diameter side to the outer diameter side; and an outer diameter-side open leg portions opened from the linear portions toward the circumferential directions of the rotation axis and extending to the connection ends. The inner diameter-side open leg portions extending to the folded portion have a correction portion for correcting the position of the rectangular conductor and are formed so as to align the connection end extending to the correction portion with the connection end of the adjacent coil piece.

Abstract translation: 定子线圈每个由多个矩形导体线圈片组成，其相邻的连接端在定子的外径侧彼此连接。 线圈片具有：在定子的内径侧沿旋转轴线方向折叠的折叠部; 从所述折叠部的两侧向所述旋转轴的圆周方向开口的内径侧开放腿部; 每个所述内径侧开放腿部弯曲的直线部分，并且设置成从所述内径侧到所述外径侧通过所述定子; 以及从所述直线部向所述旋转轴的圆周方向开口并延伸到所述连接端的外径侧开放支腿部。 延伸到折叠部分的内径侧开放腿部具有用于校正矩形导体的位置的校正部分，并且形成为将延伸到校正部分的连接端与相邻线圈片的连接端对准。

公开(公告)号：US20150349608A1

公开(公告)日：2015-12-03

申请号：US14722288

申请日：2015-05-27

Applicant: Hitachi, Ltd.

Inventor： Yoshitsugu TSUTSUMI ,  Kenta DEGUCHI ,  Akihito NAKAHARA ,  Satoshi KIKUCHI

IPC: H02K9/00 ,  H02K1/27

CPC classification number: H02K9/19 ,  H02K21/24 ,  H02K2213/03

Abstract: Provided is an axial gap motor provided with a rotor fixed to a rotary shaft, a stator facing the rotor along a shaft direction, a flow passage forming body that forms a flow passage through which a cooling refrigerant is flowed, and a housing that houses the rotor and the stator and that holds the flow passage forming body. The flow passage forming body forms an inflow port provided on a first surface of the housing facing the shaft direction, a flow passage portion passing from the inflow port through a lateral portion of the rotor in a radial direction, and a discharge port connected to the flow passage portion and provided closer to the stator than the rotor in the shaft direction.

Abstract translation: 本发明提供一种轴向间隙电动机，其设置有固定在旋转轴上的转子，沿轴向面向转子的定子，形成冷却制冷剂流过的流路的流路形成体，以及容纳 转子和定子，并且保持流路形成体。 流路形成体形成设置在壳体的面向轴方向的第一面上的流入口，从流入口沿径向通过转子的侧部的流路部，以及与该流路连接的排出口 并且在轴向上比转子更靠近定子。

公开(公告)号：US20150331051A1

公开(公告)日：2015-11-19

申请号：US14707245

申请日：2015-05-08

Applicant: Hitachi, Ltd.

Inventor： Kohji MAKI ,  Shinya YUDA ,  Hiroaki KOJIMA ,  Satoshi KIKUCHI ,  Hisashi ENDO

IPC: G01R31/34 ,  G01M13/04 ,  G01R31/12

CPC classification number: G01R31/343 ,  G01M13/04 ,  G01R31/025 ,  G01R31/12 ,  G01R31/34

Abstract: Provided is a deterioration diagnosis system which diagnoses deterioration of an N-phase rotational machine (N denotes a natural number). The deterioration diagnosis system includes a first current sensor to be attached individually to at least lead wires of (N-1)-phases in a rotational machine, the first current sensor being able to detect a current amplitude arising from a plurality of deterioration causes, and a second current sensor to be attached collectively to the lead wires of all phases in the rotational machine, the second current sensor being able to detect a current amplitude arising from a plurality of deterioration causes.

Abstract translation: 提供了诊断N相旋转机器的劣化的劣化诊断系统（N表示自然数）。 劣化诊断系统包括：第一电流传感器，其分别连接到旋转机器中的（N-1）相的至少导线上，第一电流传感器能够检测由多个劣化原因引起的电流幅度， 以及第二电流传感器，其集体地附接到旋转机器中的所有相的引线，第二电流传感器能够检测由多个劣化原因引起的电流幅度。