LAMINATED CORE AND ROTARY ELECTRIC MACHINE
    3.
    发明公开

    公开(公告)号:EP3902110A1

    公开(公告)日:2021-10-27

    申请号:EP19899180.4

    申请日:2019-12-17

    IPC分类号: H02K1/18

    摘要: A laminated core includes a plurality of electrical steel sheets stacked on each other, wherein, among the plurality of electrical steel sheets, both of the electrical steel sheets located on a first side in a stacking direction and the electrical steel sheets located on a second side in the stacking direction are fastened to each other but are not adhered to each other, and the electrical steel sheets located in a center in the stacking direction are adhered to each other but are not fastened to each other.

    LAMINATED CORE AND ROTATING ELECTRICAL MACHINE

    公开(公告)号:EP4439928A1

    公开(公告)日:2024-10-02

    申请号:EP22898280.7

    申请日:2022-10-19

    IPC分类号: H02K1/18

    CPC分类号: H02K1/18

    摘要: An electrical steel sheet includes an annular body. At least one of a plurality of adhesion layers (41) is a first adhesion layer. In one of two electrical steel sheets sandwiching the first adhesion layer in a stacking direction, when an imaginary axis intersecting with a central axis of the annular body and extending in an easy-magnetization direction is defined as an L-axis, an imaginary axis intersecting with the central axis and intersecting with the L-axis is defined as a C-axis, and the electrical steel sheet is partitioned into a plurality of sections (S) in a circumferential direction of the annular body by the L-axis and the C-axis, at least one of the plurality of sections (S) is a first section. In the first section, an area of the first adhesion layer in a first portion (P1) of the electrical steel sheet where a main magnetic flux is generated in the L-axis direction is smaller than an area of the first adhesion layer in a second portion (P2) of the electrical steel sheet where the main magnetic flux is generated in the C-axis direction.

    NON-ORIENTED ELECTROMAGNETIC STEEL SHEET
    10.
    发明公开

    公开(公告)号:EP3926060A1

    公开(公告)日:2021-12-22

    申请号:EP20756077.2

    申请日:2020-02-14

    摘要: The present disclosure has as its object the provision of non-oriented electrical steel sheet excellent in magnetic properties which is free from any drop in magnetic flux density even after stress relief annealing and a method for manufacturing the same.
    Non-oriented electrical steel sheet having a chemical composition containing C: 0.0030 mass% or less, Si: 2.0 mass% or more and 4.0 mass% or less, Al: 0.010 mass% or more and 3.0 mass% or less, Mn: 0.10 mass% or more and 2.4% mass or less, P: 0.0050 mass% or more and 0.20 mass% or less, S: 0.0030 mass% or less, and one or more elements selected from the group comprising Mg, Ca, Sr, Ba, Ce, La, Nd, Pr, Zn, and Cd: total 0.00050 mass% or more and having a balance of Fe and unavoidable impurities, where, when designating a mass% of Si as [Si], a mass% of Al as [Al], and a mass% of Mn as [Mn], a parameter Q shown by the following formula (1) is 2.0 or more, a random intensity ratio of the {100} orientation is 2.4 or more, and an average grain size is 30 µ m or less: Q = Si + 2 A 1 − Mn