Title:
COOLING STRUCTURE FOR VEHICULAR ELECTRIC MOTOR, AND METHOD FOR PRODUCING COOLING DUCT OF COOLING STRUCTURE FOR VEHICULAR ELECTRIC MOTOR
Document Type and Number:
WIPO Patent Application WO/2020/066340
Kind Code:
A1
Abstract:
A cooling duct (70) guides refrigerant, and injects said refrigerant into and cools a vehicular electric motor (30). An arc-shaped distribution pipe (72) of the cooling duct (70) is disposed adjacent to a stator coil (33c) of the vehicular electric motor (30) so as to face an injection port (72j) on a side surface of the stator coil (33c), thereby making it possible to efficiently cool the vehicular electric motor by the cooling duct and further improve the power consumption rate of the vehicular electric motor. In addition, the cooling duct can be produced efficiently by using a method for producing the cooling duct (70) in which all except one end section of a metal linear cylindrical pipe (70A) is bent into an arc shape, the result is subjected to press molding and press-fit to form a mounting stay, a plurality of injection ports are drilled into the arc-shaped section, and an introduction port is drilled into the linear end section.
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| WO/2014/112899 | MECHATRONIC MODULE |
Inventors:
KUBO KATSUHIRO (JP)
ITO KATSUHIKO (JP)
NARITA SATORU (JP)
ISHIZAKA TAKASHI (JP)
ITO KATSUHIKO (JP)
NARITA SATORU (JP)
ISHIZAKA TAKASHI (JP)
Application Number:
PCT/JP2019/031516
Publication Date:
April 02, 2020
Filing Date:
August 08, 2019
Export Citation:
Assignee:
HONDA MOTOR CO LTD (JP)
International Classes:
H02K9/04; B60K11/06; B60L3/00; B60L15/00; B62J99/00; B62M7/12
Domestic Patent References:
| WO2012063293A1 | 2012-05-18 |
Foreign References:
| JP2015012792A | 2015-01-19 | |||
| JP2016138618A | 2016-08-04 | |||
| JPS4766240U |
Attorney, Agent or Firm:
KAMIZAWA, Junko et al. (JP)
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