Title:
MOTOR CORE MANUFACTURING METHOD, AND MOTOR CORE
Document Type and Number:
WIPO Patent Application WO/2023/176748
Kind Code:
A1
Abstract:
Provided are a motor core manufacturing method and a motor core which can achieve both a reduction in iron loss and a reduction in manhours. The motor core manufacturing method includes: a step (S2) for arranging, inside a mold, a laminate in which metal sheets formed in a prescribed shape are laminated, and which has slots formed extending between both lamination-direction ends of the laminate; a step (S3) for arranging, in the slots of the laminate, a thermally adhesive resin film having a thermally adhesive layer on at least one surface thereof, such that the thermally adhesive layer of the thermally adhesive resin film and the surface of the laminate in which the slots are formed face each other; a step (S6) for injecting a resin into the mold after the mold is closed, thereby integrally forming a resin molded article on both lamination-direction ends of the laminate, and adhering the thermally adhesive film of the thermally adhesive resin film to the resin molded article at both lamination-direction ends of the laminate.
Inventors:
TANAKA YASUNORI (JP)
Application Number:
PCT/JP2023/009507
Publication Date:
September 21, 2023
Filing Date:
March 13, 2023
Export Citation:
Assignee:
SHIMODA KOGYO CO LTD (JP)
International Classes:
B29C45/14; H02K1/04; H02K15/02
Foreign References:
| JP2019187056A | 2019-10-24 | |||
| JP2013091269A | 2013-05-16 |
Attorney, Agent or Firm:
TANAKA Shinichiro et al. (JP)
Download PDF: