Title:
ROTARY ELECTRICAL DEVICE AND COOLING SYSTEM FOR ROTARY ELECTRICAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/157839
Kind Code:
A1
Abstract:
In a rotary electrical device 1, the insides of slots 11b of a stator 10, which is obtained by accommodating a coil 12 in each of the slots 11b, are a first axial direction flow path 19(1) through a third axial direction flow path 19(3) through which coolant flows between one end and the other end of the stator 10. The stator 10 comprises: a circumferential direction connection part 16a, on the one end side, that connects one end of the first axial direction flow path 19(1) to one end of the second axial direction flow path 19(2), that does not connect said one end of the first axial direction flow path 19(1) to one end of the third axial direction flow path 19(3), and that forms a circumferential direction flow path through which the coolant flows between said one end of the first axial direction flow path 19(1) and said one end of the second axial direction flow path 19(2); and a circumferential direction connection part 17a, on the other end side, that connects the other end of the second axial direction flow path 19(2) with the other end of the third axial direction flow path 19(3), that does not connect the other end of the first axial direction flow path 19(1) with said other end of the third axial direction flow path 19(3), and that forms a circumferential direction flow path through which the coolant flows between said other end of the second axial direction flow path 19(2) and said other end of the third axial direction flow path 19(3). The first axial direction flow path 19(1), the circumferential direction connection part 16a on the one end side, the second axial direction flow path 19(2), the circumferential direction connection part 17a on the other end side, and the third axial direction flow path 19(3) are connected in series.
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Inventors:
KIMOTO YUSUKE (JP)
MURAKAMI TADASHI (JP)
MITSUDA HIROSHI (JP)
KOBAYASHI HIROKI (JP)
SAMEJIMA SOHEI (JP)
HAZEYAMA MORIYUKI (JP)
MURAKAMI TADASHI (JP)
MITSUDA HIROSHI (JP)
KOBAYASHI HIROKI (JP)
SAMEJIMA SOHEI (JP)
HAZEYAMA MORIYUKI (JP)
Application Number:
PCT/JP2021/001745
Publication Date:
July 28, 2022
Filing Date:
January 20, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02K9/19
Foreign References:
| JPS5093204U | 1975-08-06 | |||
| JP2018133983A | 2018-08-23 | |||
| JP2020167764A | 2020-10-08 | |||
| JP2020162338A | 2020-10-01 | |||
| JP2004129396A | 2004-04-22 | |||
| JP2010166717A | 2010-07-29 | |||
| JP2001077571A | 2001-03-23 | |||
| JP2008011641A | 2008-01-17 | |||
| JP2011241750A | 2011-12-01 | |||
| US20160118857A1 | 2016-04-28 |
Attorney, Agent or Firm:
SANNO PATENT ATTORNEYS OFFICE (JP)
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