Title:
ROTOR OF ROTARY ELECTRIC MACHINE
Document Type and Number:
Japanese Patent JP2019134564
Kind Code:
A
Abstract:
To provide a rotor of a rotary electric machine capable of preventing the occurence of unbalance caused by a coolant accumulated in a coolant passage.SOLUTION: A rotor yoke 30 has at least a first core block 32A and a second core block 32B formed by layering electrical steel plates 33 with an identical shape. Each of the electrical steel plates 33 has a yoke hollow portion 37 being a coolant passage. The yoke hollow portion 37 positioning on the most outer-diameter side in the axial directional view has an outer-diameter side inner wall portion 38 with a circumferential directional width W on a virtual circle C1 with a radius R around the shaft center CL of a rotor 10. The second core block 32B is arranged adjacent to the first core block 32A in a state of having been rotated by a skew angle θ with respect to the first core block 32A. The circumferential directional width W is an overlapping length of the outer-diameter side inner wall portion 38A and 38B of the first core block 32A and the second core block 32B, respectively, in the axial directional view.SELECTED DRAWING: Figure 3
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Inventors:
OHIRA KENGO
Application Number:
JP2018014090A
Publication Date:
August 08, 2019
Filing Date:
January 30, 2018
Export Citation:
Assignee:
HONDA MOTOR CO LTD
International Classes:
H02K1/32; H02K9/19
Domestic Patent References:
| JP2011259691A | 2011-12-22 | |||
| JP2008312292A | 2008-12-25 | |||
| JP6017067B2 | 2016-10-26 | |||
| JP2005124356A | 2005-05-12 |
Foreign References:
| WO2017006430A1 | 2017-01-12 |
Attorney, Agent or Firm:
Patent Business Corporation Koei Patent Office