| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a linear motor that can cool both a mover and a stator without using cooling means on a mover side. <P>SOLUTION: The linear motor includes: a stator 10 comprising a series connection of a plurality of permanent magnets 11, and a mover 20 having cylindrical coils 21U, 21V, 21W combined around the stator for sliding motion along the stator. The plurality of permanent magnets 11 are housed in a pipe 16 having an inside diameter larger than an outside diameter of the permanent magnets and having an outside diameter smaller than an inside diameter of the coils. Refrigerant supply means can be connected to at least one end of the pipe 16 to introduce a refrigerant into a space between an outer circumference of the permanent magnets 11 and an inner circumference of the pipe 16, and the refrigerant can be jetted out of the pipe 16, that is, onto an inner surface of the coils being slid, via a plurality of holes 16a formed in predetermined positions in the pipe 16. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
