| 摘要 |
PROBLEM TO BE SOLVED: To provide a permanent magnet embedded type electric motor, capable of being manufactured with ease and of suppressing deformation of an end plate of a rotor by a simple configuration.SOLUTION: Linear protrusions 24-26 have widths L1-L3 longer than respective line widths W1-W3, seen from a center Z of a through-hole 16 in a radial direction. The protrusion 24 is formed at a position where a long side 24A of the protrusion 24 intersects with a center line Y1 connecting between a midpoint of a line segment X1 connecting adjacent rivet holes 17 and 18 and the center of the through-hole 16 at a right angle, to the line segment X1. The protrusion 25 is formed so that a long side 25A of the protrusion 25 intersects with a center line Y2 connecting between a midpoint of a line segment X2 connecting adjacent rivet holes 17 and 19 and the center of the through-hole 16 at a right angle, to the line segment X2. The protrusion 26 is formed so that a long side 26A of the protrusion 26 intersects with a center line Y3 connecting between a midpoint of a line segment X3 connecting between adjacent rivet holes 19 and 20 and the center of the through-hole 16 at a right angle, to the line segment X3. With respect to an end plate 7, due to formation of the protrusions 24-26, deformation caused by a fastening force of rivets 9-12 is suppressed. |
