| 摘要 |
PROBLEM TO BE SOLVED: To provide a linear motor armature wherein the windings as a whole can be made to impregnate with cooling mediums, irrespective of the passage positions of inlets and outlets of the cooling mediums, and which is improved in the heat exchange efficiency. SOLUTION: The linear motor armature 1 comprises a frame 3, having a cooling medium inlet passage 9a and an outlet passage 4a that communicate with cooling medium pools 13, 13, respectively; a can 2 that is fixed to the frame 3 and forms the cooling medium pools 13 to close them; and the armature windings 12 accommodated in the cooling medium pools 13. The tip 4b of the cooling medium cooling side of the cooling medium outlet passage 4a is formed at an upper region, wherein the armature winding 12 as a whole can be impregnated to a liquid level of the cooling medium pooled in the cooling medium pool 13. COPYRIGHT: (C)2006,JPO&NCIPI
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