Title:
LAMINATED IRON CORE MANUFACTURING METHOD AND LAMINATED IRON CORE
Document Type and Number:
WIPO Patent Application WO/2023/062743
Kind Code:
A1
Abstract:
In the provided laminate iron core manufacturing method, even in a state in which adhesive thin plates continuously produced by a press device are laminated together, is it possible to work with laminate iron core units and block iron core units. This laminate iron core manufacturing method obtains a laminate iron core (10) by integrating, by adhering together in a laminate state, multiple adhesive thin plates (17) made of a magnetic metal material that on at least one surface has an adhesive insulation film capable of expressing an adhesive function when heated and/or pressurized, wherein the laminate iron core manufacturing method involves a crimping step for forming a block iron core (12) linking together, by crimping, adhesive thin plates (17) of the same shape laminated together, and an adhesion step for integrating by adhesion the adhesive thin plates (17) upon laminating block iron cores (12) individually or multiply. The adhesive thin plates (17) are shaped such that crimping protrusions (18) and crimping holes (19) are arranged alternately in the circumferential direction, and in the crimping step, the adhesive thin plates (17) forming a block iron core (12) are linked to each other by the crimping protrusions (18) of the adhesive thin plates (17) being fitted into and crimped in the crimp holes (19) of the adjacent adhesive thin plates (17).
Inventors:
HASUO YUSUKE (JP)
Application Number:
PCT/JP2021/037867
Publication Date:
April 20, 2023
Filing Date:
October 13, 2021
Export Citation:
Assignee:
MITSUI HIGH TEC (JP)
International Classes:
H02K15/02; H02K1/06
Foreign References:
| JP2002191142A | 2002-07-05 | |||
| JP2017046480A | 2017-03-02 | |||
| JP2015139352A | 2015-07-30 | |||
| JPH11308821A | 1999-11-05 | |||
| JP2004023829A | 2004-01-22 | |||
| JPS5450919A | 1979-04-21 |
Attorney, Agent or Firm:
HIRAI Yasuo (JP)
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