公开(公告)号：US20190326796A1

公开(公告)日：2019-10-24

申请号：US16390286

申请日：2019-04-22

Applicant: SINFONIA TECHNOLOGY CO., LTD.

Inventor： Hiroki Wakabayashi ,  Masashi Kutsuna ,  Yutaka Wakita ,  Tetsuhiro Tomita

IPC: H02K9/193 ,  H02K7/00 ,  H02K7/08

Abstract: A shaft includes a main refrigerant passage capable of supplying a refrigerant in one direction on an axial center part and a test piece side sub-refrigerant passage having a starting end communicating with the vicinity of a downstream end in a refrigerant supply direction of the main refrigerant passage. The downstream end in the refrigerant supply direction of the main refrigerant passage is set at the position before an end of the shaft at the side to which a test piece is connected and a predetermined position on the downstream side in the refrigerant supply direction relative to a test piece side bearing. An ending end (discharge port) of the test piece side sub-refrigerant passage is set on the upstream side (counter test piece side) in the refrigerant supply direction relative to the test piece side bearing.

公开(公告)号：US20220123663A1

公开(公告)日：2022-04-21

申请号：US17496015

申请日：2021-10-07

Applicant: SINFONIA TECHNOLOGY CO., LTD.

Inventor： Masashi Kutsuna

IPC: H02M7/00 ,  H02M1/14

Abstract: A smoothing circuit 2 for an inverter includes a parallel flat plate 21, a plurality of capacitors 22 arranged in a matrix and mounted on the parallel flat plate 21, and a thermal conductive sheet 23 interposed between the parallel flat plate 21 and a housing 4 in an area overlapping a mounting area 21c of the plurality of capacitors 22 when viewed along a normal direction of the parallel flat plate 21. The plurality of capacitors 22 are arranged in such a manner that adjacent terminals 221 of adjacent capacitors 22 have a same polarity in a row direction and a column direction.