| 摘要 |
A main motor (100) comprising a stator (10), a rotor core (4), an iron core clamp (5), a cooling fan (30), a rotor (7), a frame (2), a bracket (1), and a bearing section (50). The cooling fan (30) comprises: a main plate (31) that partitions the inside and outside of the totally enclosed main motor (100); a plurality of blades (32) provided in the rotation direction of the rotor (7), on the bracket (1) side of the cooling fan (30); and a guide (33) provided on the bracket (1) side of the blades (32). An air intake port (20) is provided in the bracket (1), inside an area formed by projecting the guide (33) on to the bracket (1). The guide (33) is formed such that the air taken in from the air intake port (20) is guided to a rotor shaft (9). |
