| 摘要 |
PROBLEM TO BE SOLVED: To obtain a motor in which the work efficiency and reliability are enhanced for the fixing structure of an excessive temperature rise preventive unit. SOLUTION: Substantially I-shaped tooth parts are provided at a constant interval from the yoke part of a stator core and substantially U-shaped tooth parts are arranged symmetrically on the opposite sides of every other tooth part thus forming the inner and outer slots of tooth part. It is then premolded 7 of resin while covering the stator core except at least the forward end of tooth part facing the rotor thus forming an outer barrier wall 7a, an intermediate barrier wall 7c, an inner barrier wall 7b, and posts 7d3, 7d1, 7d2. Furthermore, a holding part is formed by a pair of ribs 7f1, 7f2 facing the central part of outer barrier wall and intermediate barrier wall, respectively, on the center line of substantially I-shaped tooth part and an excessive temperature rise preventive unit 12 is held at the holding part by clamping one side of the rib between the holding part and the side face of outer winding. |
