Patent ID: 11929649
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 3:
4. The rotating electric machine according to claim 1,
wherein, in a part across a part of the rotor core between the magnet insertion hole group and a first adjacent magnet insertion hole group which is another magnet insertion hole group adjacent to the magnet insertion hole group on one side in a circumferential direction, a part of the rotor core on a radially inner side with respect to the magnet insertion hole group, and a part of the rotor core between the magnet insertion hole group and a second adjacent magnet insertion hole group which is the other magnet insertion hole group adjacent to the magnet insertion hole group on the other side in the circumferential direction, a second q-axis magnetic path is formed, and
wherein the following expression is satisfied:

d3>Bmag/Bs×W1,

where d3 represents a widthwise dimension of a second q-axis magnetic path exit part which is a radially outer part of the second q-axis magnetic path, W1 represents a dimension of each of the plurality of permanent magnets in a direction perpendicular to a magnetization direction of each of the plurality of permanent magnets when viewed in an axial direction, Bmag represents a magnetic flux density of each of the plurality of permanent magnets, and Bs represents a saturation magnetic flux density of the rotor core.