公开(公告)号：US11653481B2

公开(公告)日：2023-05-16

申请号：US17155729

申请日：2021-01-22

Applicant: DENSO CORPORATION

Inventor： Tomohisa Sano ,  Ryota Tanabe ,  Yuta Hashimoto ,  Wataru Funatsu

IPC: H05K7/20 ,  H02M7/00 ,  H02P27/06

CPC classification number: H05K7/20927 ,  H02M7/003 ,  H02P27/06

Abstract: An electric power conversion device includes: a cooler that includes a flow path through which a refrigerant flows, a first surface, and a second surface opposite to the first surface in a thickness direction; and multiple power modules that include a semiconductor device configuring an upper-lower arm circuit, and a capacitor connected to the upper-lower arm circuit in parallel. The capacitor and the semiconductor device are arranged in the thickness direction. The multiple power modules are placed on both of the first surface and the second surface of the cooler.

公开(公告)号：US11967867B2

公开(公告)日：2024-04-23

申请号：US17156903

申请日：2021-01-25

Applicant: DENSO CORPORATION

Inventor： Tomohisa Sano ,  Yuki Takahashi ,  Ryota Tanabe ,  Yuta Hashimoto ,  Wataru Funatsu ,  Norihiro Hayashi

IPC: H02K5/20 ,  B60K7/00 ,  H02K1/2791 ,  H02K5/22 ,  H02K7/00 ,  H02K11/33 ,  H02K21/22

CPC classification number: H02K11/33 ,  B60K7/0007 ,  H02K1/2791 ,  H02K5/20 ,  H02K5/203 ,  H02K5/225 ,  H02K7/006 ,  H02K21/22 ,  B60K2007/0092

Abstract: A rotating electric machine includes: a field element that includes a magnet portion that includes a plurality of magnetic poles; an armature that includes an armature winding of multiple phases; and a power converter that is electrically connected to the armature winding.
The rotating electric machine also includes: a plurality of electrical components that configure the power converter; and a housing member that includes a cylindrical portion that is provided on a radially inner side of a magnetic circuit portion that includes the magnet portion and the armature winding, and to which the plurality of electrical components are disposed. The cylindrical portion is provided with a coolant passage through which a coolant flows. The plurality of electrical components are arranged in the housing member on a radially inner side of the cylindrical portion, in a circumferential direction along the cylindrical portion.