| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce the manufacturing cost of the motor for a pump, and to reduce the size of the motor. <P>SOLUTION: This motor 1 is equipped with a fixed assembly 3 which is provided with a recess 310 having a cylindrical inner flank and allowing the inflow of fluid, and a rotor 2 which rotates within the recess 310. The fixed assembly 3 is equipped with the first cover part 31, which has a bottomed cylinder 311 to form the recess 310 and a plate 312, spreading substantially vertical to the central axis J1 from the opening of the recess 310, an armature 32 which generates torque centering upon the central axis J1 between itself and a magnet 23 for field, and a second cover 33 which covers the outer flank of the armature 32. Sealed space for storing the armature 32 and a circuit board 51 is made by combining the first cover 31 and the second cover 33 via an O-ring 34. In the motor 1, the second cover part 33 is molded by press-processing of a metallic plat, whereby the manufacturing cost of the motor 1 can be reduced and also the motor 1 can be made small. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
