公开(公告)号：US20160171139A1

公开(公告)日：2016-06-16

申请号：US14963922

申请日：2015-12-09

申请人： Hitachi, Ltd.

发明人： Kazutami TAGO ,  Naoki SAKURAI ,  Kinya KOBAYASHI

IPC分类号： G06F17/50 ,  G01R19/25

CPC分类号： G06F17/5036

摘要： In a calculation method of calculating a switching wave form of an inverter by expressing a wave form obtained by measurement or simulation using a function formula, an intermediate terminal is provided between an upper terminal and a lower terminal of an inverter arm and a power supply of a voltage function formula is provided between the upper terminal and the intermediate terminal or the intermediate terminal and the lower terminal. Further, it may be configured such that a variation impact from peripheral circuits at time of switching is calculated and voltage correction calculation is performed to prevent the calculated switching wave form from changing due to the calculation of the variation impact.

摘要翻译： 在通过使用函数式表达通过测量或模拟获得的波形来计算逆变器的开关波形的计算方法中，中间端子设置在逆变器臂的上端子和下端子之间，并且电源 在上端子和中间端子或中间端子和下端子之间提供电压函数公式。 此外，也可以构成为，在计算切换时从外围电路产生的变化影响，并进行电压校正计算，以防止计算的切换波形由于变化影响的计算而变化。

公开(公告)号：US20190058374A1

公开(公告)日：2019-02-21

申请号：US16078298

申请日：2016-02-25

申请人： Hitachi, Ltd.

发明人： Yuji ENOMOTO ,  Hirooki TOKOI ,  Naoki SAKURAI ,  Hisashi TANIE ,  Kenta DEGUCHI

IPC分类号： H02K9/20 ,  H02K7/14 ,  H02K11/33 ,  H02K11/40 ,  H02K16/02 ,  H02K21/24 ,  F28D15/02 ,  F04D3/00 ,  F04D13/06

CPC分类号： H02K9/20 ,  F04D3/00 ,  F04D13/0606 ,  F04D13/0666 ,  F04D29/5806 ,  F28D15/02 ,  F28D15/0233 ,  F28D15/04 ,  F28D2021/0028 ,  F28D2021/004 ,  H02K1/146 ,  H02K5/18 ,  H02K7/14 ,  H02K9/04 ,  H02K9/14 ,  H02K11/33 ,  H02K11/40 ,  H02K16/02 ,  H02K21/24 ,  H02K2211/03

摘要： To significantly improve a heat dissipation property of an axial gap rotary electric machine within a size necessary for configuring a motor. In an axial gap rotary electric machine comprising a stator and a rotor in an axial direction, the stator has a plurality of stator cores arranged in a circumferential direction and coils wound around the stator cores, and a heat pipe obtained by filling an inside of a metal hollow pipe with a refrigerant is arranged in a gap between adjacent coils formed in an outer diameter portion of the stator in a radial direction and a housing with a necessary insulation distance between the coils and the heat pipe. The heat pipe extends in a direction of a rotation axis and an opposite output side, and is in contact with a heat dissipating fin outside an end bracket on the opposite output side.

公开(公告)号：US20180358863A1

公开(公告)日：2018-12-13

申请号：US15779296

申请日：2016-11-04

申请人： HITACHI, LTD.

发明人： Hisashi TANIE ,  Yoshitaka IWAJI ,  Yuji ENOMOTO ,  Hirooki TOKOI ,  Takayoshi NAKAMURA ,  Naoki SAKURAI ,  Fusao HOUJYOU ,  Kohei MATSUSHITA

IPC分类号： H02K5/24 ,  H02K5/18 ,  H02K11/25 ,  H02K11/33 ,  H02K11/38

摘要： An object of the present invention is to provide a highly reliable electromechanical integral motor.In an electromechanical integral motor including an axial gap type motor and a power conversion control device, the power conversion control device is mounted on an end bracket portion of the motor, a space is installed between the end bracket portion of the motor and the power conversion control device, the end bracket portion of the motor and the power conversion control device are fixed by a plurality of fixing members, and at least one set of the plurality of fixing members is disposed to be spaced apart from each other.