Title:
CORELESS MOTOR
Document Type and Number:
WIPO Patent Application WO/2021/024486
Kind Code:
A1
Abstract:
Provided is a coreless motor which has a simple structure and with which overheating of a coil during motor operation can be suppressed, and excess current can be supplied to the coil to cause an electric motor to output at high rotation. The coreless motor comprises: a rotation center shaft that extends in the axial direction at the center of a sealed housing; a cylindrical coil that is disposed concentrically with respect to the rotation center shaft in the housing, an end surface on one side of the cylindrical coil being supported by a stator and extending in the direction in which the rotation center shaft extends; a rotor that is disposed concentrically with respect to the rotation center shaft in the housing, and that rotates in the circumferential direction of the rotation center shaft; and a liquid refrigerant that is accommodated in the housing, that flows inside the housing due to the rotation of the rotor, and that contacts the cylindrical coil.
Inventors:
SHIRAKI MANABU (JP)
TANAKA KUNIYUKI (JP)
KAWANO SHOTARO (JP)
TANAKA KUNIYUKI (JP)
KAWANO SHOTARO (JP)
Application Number:
PCT/JP2019/031502
Publication Date:
February 11, 2021
Filing Date:
August 08, 2019
Export Citation:
Assignee:
CORELESS MOTOR CO LTD (JP)
International Classes:
H02K9/19; H02K9/20
Domestic Patent References:
| WO2019124543A1 | 2019-06-27 |
Foreign References:
| JP2001136696A | 2001-05-18 | |||
| JP2014090553A | 2014-05-15 | |||
| US20140175917A1 | 2014-06-26 | |||
| JP2009171755A | 2009-07-30 | |||
| JP2006311696A | 2006-11-09 | |||
| JP2013208040A | 2013-10-07 | |||
| JP2008072871A | 2008-03-27 | |||
| JP2016167940A | 2016-09-15 |
Attorney, Agent or Firm:
WAKUI Kenichi et al. (JP)
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