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1. (WO2018180720) ELECTRIC MOTOR AND METHOD FOR PRODUCING SAME

Pub. No.:    WO/2018/180720    International Application No.:    PCT/JP2018/010855
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Tue Mar 20 00:59:59 CET 2018
IPC: H02K 1/18
H02K 1/14
H02K 15/02
Applicants: NTN CORPORATION
NTN株式会社
Inventors: MASUDA, Yui
増田 唯
Title: ELECTRIC MOTOR AND METHOD FOR PRODUCING SAME
Abstract:
Provided are: an axial gap-type electric motor wherein a motor core can be produced with ease and precision, and production costs can be reduced; and a method for producing same. This electric motor is an axial gap-type electric motor provided with a housing, a stator (2) held static to the housing, and a rotor (3) supported so as to be able to rotate relative to the stator (2), the stator (2) and the rotor (3) facing in the direction of the axis of rotation of the rotor (3). The stator (2) is provided with a core (7) including a yoke section (8) extending in a circumferential direction and a plurality of magnetic pole sections (9) that protrude out in the axial direction from this yoke section (8) and are lined up in the circumferential direction. This core (7) has a cylindrical shape in which one end and the other end of the yoke section (8) in the circumferential direction are close together. A plurality of magnetic bodies (13), which have, in an integral manner, sections constituting the yoke section (8) and sections constituting the magnetic pole sections (9) are arranged concentrically.