Title:
MOTOR CORE
Document Type and Number:
Japanese Patent JP2019161928
Kind Code:
A
Abstract:
To provide a motor core with high adhesive strength of laminated electrical steel sheets.SOLUTION: In a motor core in which a plurality of punched electromagnetic steel plates 10 are stacked and the plate surfaces 10a of the plurality of electromagnetic steel plates 10 are bonded to each other, the sag height of the punched end surface 11 of the electromagnetic steel plate 10 is L (mm), and the sag width of the punched end surface 11 is W (mm), the amount of protrusion after drying from the punched end surface 11 of an adhesive layer 13 provided on the plate surface 10a of the electromagnetic steel sheet 10 is F (μm), and the following formulas (1) and (2) are satisfied. 0.01≤L/W≤0.04 (1). 1 μm≤F≤1 μm+250 μm×(L/W) (2).SELECTED DRAWING: Figure 3
Inventors:
SHIKANO SATOSHI
FUJIMURA HIROSHI
FUJIMURA HIROSHI
Application Number:
JP2018047621A
Publication Date:
September 19, 2019
Filing Date:
March 15, 2018
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
H02K1/18; H01F27/24; H01F27/245; H01F41/02; H02K1/16; H02K15/02; H02K15/12
Domestic Patent References:
| JP2003282330A | 2003-10-03 | |||
| JP2014096429A | 2014-05-22 | |||
| JP2015142453A | 2015-08-03 | |||
| JP2008067459A | 2008-03-21 | |||
| JP2015164389A | 2015-09-10 | |||
| JP2000273575A | 2000-10-03 | |||
| JPH0442742A | 1992-02-13 |
Attorney, Agent or Firm:
Kuribayashi Mitsuo
Osamu Nitta
Kazuki Kuribayashi
Osamu Nitta
Kazuki Kuribayashi