Title:
STATOR AND STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2023/074571
Kind Code:
A1
Abstract:
A stator having a yoke, teeth extending from the yoke, coils accommodated in slots formed between the teeth, and cooling water channels (200) for cooling the coils, wherein the cooling water channels (200) include in-coil water channels (301) arranged between one end and the other end in the axial direction to cool the coils, and header water channels (310) that are connected to the plurality of in-coil water channels (301), arranged outside the coils, and distribute cooling water introduced into the in-coil water channels (301) or collect the cooling water discharged from the in-coil water channels (301), and where the total cross-sectional area of the in-coil water channels (301) is S1, and the cross-sectional area of the plane perpendicular to the movement direction of the cooling water in the header water channels (310) is S2, the ratio S2/S1 between S1 and S2 is 0.5 or more.
Inventors:
KOSAKA WATARU (JP)
YAMAMOTO SHINYA (JP)
NISHIKAWA ATSUNORI (JP)
HARADA TAKAHIRO (JP)
YAMAMOTO SHINYA (JP)
NISHIKAWA ATSUNORI (JP)
HARADA TAKAHIRO (JP)
Application Number:
PCT/JP2022/039299
Publication Date:
May 04, 2023
Filing Date:
October 21, 2022
Export Citation:
Assignee:
SUMITOMO BAKELITE CO (JP)
International Classes:
H02K9/19; H02K11/30
Foreign References:
| JP2015216793A | 2015-12-03 | |||
| JPH0993869A | 1997-04-04 | |||
| JP2009284755A | 2009-12-03 | |||
| JP2020532253A | 2020-11-05 | |||
| JPS5627874U | 1981-03-16 | |||
| JPH1127881A | 1999-01-29 | |||
| JP2016077117A | 2016-05-12 | |||
| JP2011015578A | 2011-01-20 | |||
| JPH09163681A | 1997-06-20 |
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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