| 摘要 |
<p>PROBLEM TO BE SOLVED: To make it possible to improve the efficiency of a motor by increasing the lamination coefficient of outside core and inside core, by providing a plurality of permanent magnets making linear motions as mutual action between the outside core and inside core. SOLUTION: A linear motor 20 is provided in such a manner that the members of four outer core 21 have an angle of 90 degrees with an axis as reference, and an inner core 22 coupled with 4 members corresponding to each outer core 21 is separated at predetermined intervals inwardly from these outer core 21. And 4 permanent magnets 24 moving up and down between these outer core 21 and inner core 22 are provided, each outer core 21 and each inner core 22 and respective members of each permanent magnet 24 keep 90 degrees with the inner shaft as reference, thereby canceling influences by surrounding members. By doing this, the lamination coefficient of the outer core 21 and the inner core 22 can be increased, thereby improving the efficiency.</p> |
