| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a magnet which is easy to be assembled without reducing motor characteristics and formed to improve productivity, in a square DC motor.SOLUTION: In a stator magnet 20 which has predetermined thickness and has a hollow tubular shape, to be inserted while being adhered to the inside of a motor frame including a tubular part whose cross section is formed by crushing a corner inside while leaving a part of sides of a polygon, a corner part 20a is formed thick, a thin part 20b coupling the corner parts 20a with each other is formed thin and at an edge of an end face at one end side in an axial direction, a tapered part 21 is formed which is inclined in the axial direction.</p> |
