Title:
回転電機の積層鉄心製造方法及び積層鉄心製造装置
Document Type and Number:
Japanese Patent JP6899873
Kind Code:
B2
Abstract:
To improve motor efficiency and suppress cogging torque or torque ripple.SOLUTION: In a laminated iron core manufacturing method for a rotary electric machine, before a step of punching a plate-shaped rotor core element 21 from a strip-shaped electromagnetic steel plate 4 formed by rolling by a press mechanism 51,..., in a second region 42 inside a first region 41 for punching the plate-shaped rotor core element of the strip-shaped electromagnetic steel plate 4, a plurality of plate-shaped stator core elements 11 are punched out in a punching step such that the radial extension direction of the rotating electric machine of a teeth portion 11T becomes the same.SELECTED DRAWING: Figure 2
Inventors:
Kentaro Kozuka
Seiji Nakano
Masatsugu Nakano
Shota Yoshioka
Seiji Nakano
Masatsugu Nakano
Shota Yoshioka
Application Number:
JP2019129848A
Publication Date:
July 07, 2021
Filing Date:
July 12, 2019
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H02K15/02; H02K1/18
Domestic Patent References:
| JP2013226013A | ||||
| JP2002186227A | ||||
| JP2013013189A | ||||
| JP2010075027A | ||||
| JP2007028799A |
Attorney, Agent or Firm:
Patent Business Corporation Parumo Patent Office
Masuo Oiwa
Takenaka Ikuo
Keigo Murakami
Kenji Yoshizawa
Masuo Oiwa
Takenaka Ikuo
Keigo Murakami
Kenji Yoshizawa