| 摘要 |
PURPOSE:To enable high output to be obtained with low consumption current, by setting the ratio of the length of a coil wound up on a spool, to the thickness from the center of the spool to the outermost periphery of the coil, to be a value in a specified range. CONSTITUTION:The bar-like spool 1 of circular cross section is wound up with a coil 2, and the both ends are placed between plastic coil-frames 3, 3. A stator 4 is magnetically connected to the both ends of the spool 1 wound up with the coil 2, and between the magnetic poles of the stator, a rotor is set. So far as said organization is concerned, when the length of the section wound up with the coil on the spool 1 is L and the thickness from the center of the spool 1 to the outermost section of the coil is R, then the relation 10<=L/R<=40 holds, and the length L of the section wound up with the coil on the spool is set to be 30mm. As the result, high output can be obtained with low consumption current, and the motor of high conversion efficiency can be obtained.
|
