Title:
MANUFACTURING METHOD FOR ARMATURE CORE, MANUFACTURING METHOD FOR ELECTRIC MACHINE, AND ELECTRIC MACHINE
Document Type and Number:
WIPO Patent Application WO/2020/194787
Kind Code:
A1
Abstract:
This manufacturing method for an armature core has a step of cutting out a core piece set from a steel sheet and a step of folding the cut-out core piece set at connecting sections and laminating core pieces to form a split laminated core. In the core piece set, the plurality of connecting sections are provided between the plurality of core pieces and connect the core pieces together. A portion of each of the connecting sections of the core piece set is provided between back yoke sections of two adjacent core pieces. Each of the back yoke sections in the core piece set is separated from adjacent back yoke sections at portions other than the connecting sections.
Inventors:
DAITO HIROKI (JP)
NAKA KOKI (JP)
ONIHASHI TAKAYUKI (JP)
NAKA KOKI (JP)
ONIHASHI TAKAYUKI (JP)
Application Number:
PCT/JP2019/034986
Publication Date:
October 01, 2020
Filing Date:
September 05, 2019
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02K15/02; H02K1/18
Foreign References:
| JP2000341914A | 2000-12-08 | |||
| JP2015053806A | 2015-03-19 | |||
| JP2015149894A | 2015-08-20 |
Attorney, Agent or Firm:
SOGA, Michiharu et al. (JP)
Download PDF: