| 摘要 |
Provided is a laminated iron core (10) that will improve the yield of materials, and prevent cracks or ruptures from being produced on iron core pieces, by easing the stress to be generated on coupling sections (13). Coupled divided-iron-core-pieces (14) to be used in assembling the laminated iron core (10) has, on the inner side in the radius direction of the coupling sections (13), V-shaped slots (17) with an opening angle of 360/n, assuming the number of divided-iron-core-pieces (19) to be n, and which open towards the inner side in the radius direction; and also has, on the outer side in the radius direction of the coupling sections (13), separating sections (18) that separate mutually-adjacent, divided yoke-piece sections (12), which are located more on the outer side in the radius direction than the coupling sections (13). Furthermore, first through holes (20) having circular-arcs are formed on the end sections at the outer side in the radius direction of the V-shaped slots (17), which are in contact with the coupling sections (13); and second through holes (20), having arcs with a radius of curvature greater than the circular-arcs of the first through holes (20), are formed on the end sections at the inner side in the radius direction of the separating sections (18), which are in contact with the coupling sections (13). |
