MOTOR STATOR, MOTOR STATOR MANUFACTURING METHOD, AND MOTOR

Title:

MOTOR STATOR, MOTOR STATOR MANUFACTURING METHOD, AND MOTOR

Document Type and Number:

WIPO Patent Application WO/2018/008328

Kind Code:

A1

Abstract:

[Problem] To provide a stator facilitating a process of winding an armature winding and reducing a cogging torque, and a method of manufacturing the stator. [Solution] A tooth portion 120 is formed in such a way that: segment portions 121 which are each radially provided with a plurality of teeth 121A and one ends of which are extended in an arc shape are punched out from a grain-oriented electrical steel sheet 200, the segment portions 121 are connected in a circular shape, and the segment portions 121 connected in the circular shape are laminated. An armature winding 130 is wound from the other end side of the teeth 121A, and the tooth portion 120 is fitted into a circular yoke portion 110, wherein said circular yoke portion 110 is provided with a plurality of recess portions 111 on the inner circumferential portion and laminated in the axial direction of the motor.

Inventors:

SHIBUYA HIROSHI (JP)

Application Number:

PCT/JP2017/021490

Publication Date:

January 11, 2018

Filing Date:

June 09, 2017

Export Citation:

Click for automatic bibliography generation Help

Assignee:

NISSO ELECTRIC CORP (JP)

International Classes:

H02K1/12; H02K15/02

Foreign References:

JP2011125176A	2011-06-23
JP2005143164A	2005-06-02
JP2013510270A	2013-03-21
JP2000245083A	2000-09-08
JP2009050138A	2009-03-05

Other References: