Title:
MOTOR
Document Type and Number:
WIPO Patent Application WO/2018/030219
Kind Code:
A1
Abstract:
A motor is provided with a rotor that rotates with a motor axis as the center, and a stator positioned at the radially outward side of the rotor. The rotor has a shaft extending along the motor axis, and a rotor core enclosing the shaft from the radially outward side. On the shaft are provided: a hollow part having an inner circumference surface extending along the axial direction, by which oil is supplied to the inside; and a communication hole extending in the radial direction and putting into communication the hollow part and outside of the shaft. On the inner circumference surface of the hollow part, a recessed groove extending along the circumference direction is provided, and the communication hole opens to the hollow part in the recessed groove.
More Like This:
| JPS5416602 | ROTOR OF ROTARY ELECTRIC MACHINE |
| JP7279185 | Rotors, motors and electric vehicles |
| JPS60234445 | COOLING STRUCTURE FOR FLAT ROTARY ELECTRIC MACHINE |
Inventors:
ISHIKAWA YUKI (JP)
MIGITA TAKAYUKI (JP)
MIGITA TAKAYUKI (JP)
Application Number:
PCT/JP2017/027894
Publication Date:
February 15, 2018
Filing Date:
August 01, 2017
Export Citation:
Assignee:
NIDEC CORP (JP)
International Classes:
H02K1/32; H02K9/19
Foreign References:
| JP2009296772A | 2009-12-17 | |||
| JP2010239734A | 2010-10-21 | |||
| JP2010142090A | 2010-06-24 | |||
| JP2005006429A | 2005-01-06 | |||
| JP2009027862A | 2009-02-05 | |||
| JP2010172069A | 2010-08-05 |
Download PDF:
Previous Patent: MOTOR
Next Patent: CONSTRUCTION MACHINERY CONTROL SYSTEM, CONSTRUCTION MACHINERY, AND CONSTRUCTION MACHINERY CONTROL ME...
Next Patent: CONSTRUCTION MACHINERY CONTROL SYSTEM, CONSTRUCTION MACHINERY, AND CONSTRUCTION MACHINERY CONTROL ME...