Title:
ROTOR
Document Type and Number:
WIPO Patent Application WO/2018/212054
Kind Code:
A1
Abstract:
This rotor (10) is provided with: a rotor core (20); a plurality of permanent magnets (23) arranged side-by-side in the circumferential direction of the rotor core (20); and a block (30) having a facing surface (32) which faces one axial end surface of the rotor core (20), and formed from a material having relative magnetic permeability higher than 1. The contour of the facing surface (32) of the block (30) has a shape which fits radially inside the plurality of permanent magnets (23) when viewed in the axial direction of the rotor core (20). The abovementioned configuration enables to prevent the formation of a magnetic short circuit within the rotor when a material having high relative magnetic permeability is used to form a member for increasing the inertia of the rotor.
More Like This:
Inventors:
OHSAWA YASUHIKO (JP)
AOTA KEIJI (JP)
NAKA SHOUJIROU (JP)
AOTA KEIJI (JP)
NAKA SHOUJIROU (JP)
Application Number:
PCT/JP2018/018047
Publication Date:
November 22, 2018
Filing Date:
May 10, 2018
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
H02K1/27; H02K7/02; H02K15/16
Foreign References:
| JP2009225639A | 2009-10-01 | |||
| JPS6077646A | 1985-05-02 | |||
| JP2004336831A | 2004-11-25 |
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
Download PDF: