MOTOR AND MOTOR DEVICE

WIPO Patent Application WO/2021/199172

A1

A motor (100) according to the present disclosure provided with: a cylindrical inner frame (4) which has disposed thereinside a stator (3) surrounding a rotor (2) and which has formed therein an inlet header flow path, an outlet header flow path (41), and first and second flow paths through which a cooling liquid is distributed; and an outer frame (5) having a cylindrical lateral wall (50) which surrounds the outer circumference of the inner frame (4), an inlet (51) which is formed in communication with the inlet header flow path (40) and through which the cooling liquid flows in, and having an outlet (52) which is formed in communication with the outlet header flow path (41) and through which the cooling liquid flows out, wherein each of the first and second flow paths is connected at one end thereof to the inlet header flow path (40) and connected at the other end thereof to the outlet header flow path (41), and the second flow path has the cooling liquid distributed in a direction opposite to the first flow path, has a length, in the circumferential direction, along which the cooling liquid is distributed and which is shorter than that of the first flow path, and has a flow path cross-sectional area in which the cooling liquid is distributed and which is smaller than that of the first flow path.

KATO KENJI (JP)
ARITA HIDEAKI (JP)
KOMATSU TAIGA (JP)
HIDAKA YUKI (JP)

PCT/JP2020/014602

October 07, 2021

March 30, 2020

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MITSUBISHI ELECTRIC CORP (JP)

H02K5/20; H02K9/19

WO2012111374A1

2012-08-23

US8492952B2	2013-07-23
JP2014138542A	2014-07-28
JP2016220298A	2016-12-22

MURAKAMI, Kanako et al. (JP)

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