Patent ID: 11915860
Assignee: NIPPON STEEL CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A laminated core comprising:
electrical steel sheets stacked on each other, each electrical steel sheet being-coated with an insulation coating on both surfaces thereof; and
an adhesion part provided between each of the electrical steel sheets adjacent to each other in a stacking direction and configured to adhere the electrical steel sheets to each other,
wherein an adhesion area ratio of each electrical steel sheet by the adhesion part is 1% or more and 40% or less,
each electrical steel sheet includes an annular core back part and a plurality of tooth parts which protrude from the annular core back part in a radial direction of the annular core back part and are disposed at intervals in a circumferential direction of the annular core back part,
the adhesion part includes a second adhesion part provided along an inner peripheral edge of the electrical steel sheet,
the second adhesion part includes a plurality of adhesion tooth parts and a plurality of adhesion core back parts,
the plurality of adhesion tooth parts are provided at intervals in the circumferential direction, and are respectively disposed in the plurality of tooth parts of the electrical steel sheet, and
the plurality of adhesion core back parts are disposed in the annular core back part of the electrical steel sheet, and connect the plurality of adhesion tooth parts that are adjacent to each other in the circumferential direction.