Title:
DRIVE UNIT
Document Type and Number:
Japanese Patent JP2019071727
Kind Code:
A
Abstract:
To provide a technology capable of enhancing positioning accuracy of a core member.SOLUTION: The drive unit includes: a core member 32-A constituting a stator core; and a plurality of positioning portions 36-A, 36-B, 36-C for positioning the core member 32-A in radial and circumferential directions of a rotor by coming into contact with the core member 32-A. One of the core member 32-A and the positioning portions 36-A, 36-B, 36-C has an arc-shaped convex portion 38 and the other one of the core member 32-A and the positioning portions 36-A, 36-B, 36-C has an arc-shaped concave portion 40 having a curvature radius larger than that of the arc formed by the convex portion 38 at the contact point with the convex portion 38.SELECTED DRAWING: Figure 4
Inventors:
MAEDA KOICHI
SANNOMIYA TAKASHI
SANNOMIYA TAKASHI
Application Number:
JP2017196909A
Publication Date:
May 09, 2019
Filing Date:
October 10, 2017
Export Citation:
Assignee:
TGK CO LTD
International Classes:
H02K1/18; H02K1/14; H02K37/16; H02K37/24
Attorney, Agent or Firm:
Sakaki Morishita
Yusuke Murata
Tomoyuki Miki
Yusuke Murata
Tomoyuki Miki