| CPC H02K 1/185 (2013.01) [C09J 163/00 (2013.01); H01F 27/245 (2013.01)] | 9 Claims |
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1. An adhesively-laminated core for a stator comprising:
a plurality of electrical steel sheets which are stacked on one another and of which both surfaces are coated with insulation coatings; and
adhesion parts which are disposed between the electrical steel sheets adjacent to each other in a stacking direction and cause the electrical steel sheets to be adhered to each other,
wherein all sets of the electrical steel sheets adjacent to each other in the stacking direction are adhered via the adhesion parts,
wherein an adhesive forming the adhesion parts is a two-agent type acrylic-based adhesive which includes an acrylic-based compound, an oxidizer, and a reducer and in which a portion of the acrylic-based compound and the oxidizer are assigned to a first agent and the remaining portion of the acrylic-based compound and the reducer are assigned to a second agent,
wherein the acrylic-based compound includes at least one selected from the group consisting of methyl methacrylate, phenoxyethyl methacrylate, 2-hydroxyethyl methacrylate, and 2-hydroxypropyl methacrylate,
wherein the methyl methacrylate is within a range of 0 to 50 mass %, the phenoxyethyl methacrylate is within a range of 0 to 50 mass %, the 2-hydroxyethyl methacrylate is within a range of 0 to 50 mass %, and the 2-hydroxypropyl methacrylate is within a range of 0 to 50 mass % with respect to a total mass of the acrylic-based adhesive,
wherein the adhesion parts are partially provided between the electrical steel sheets adjacent to each other in the stacking direction,
wherein the adhesively-laminated core for a stator includes an annular core back part and a plurality of tooth parts, and
wherein an adhesion area ratio of the core back part via the adhesion parts is within a range of 50% to 80%.
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