| 摘要 |
A small and high rigid linear motor ( 1 ), wherein a tabular heat pipe ( 7 ) is disposed between a plurality of coil rows forming an armature coil ( 6 ) along the longitudinal direction of an armature ( 5 ) with a part of the heat absorbing part of the heat pipe ( 7 ) fixed to the armature coil ( 6 ) and the heat radiating part thereof inserted into a refrigerant passage ( 11 ), a block-shaped locking member ( 8 ) for fixing the heat pipe ( 7 ) to a frame ( 10 ) is installed between the portion of the heat pipe ( 7 ) for fixing the armature coil thereto and the portion thereof inserted into the refrigerant passage ( 11 ), and a hollow recessed part ( 10 a) forming the refrigerant passage ( 11 ) and allowing die insertion of the heat radiating part of the heat pipe ( 7 ) therein and a locking step part ( 10 c) allowing the locking of the frame ( 10 ) to the locking member ( 8 ) installed on the heat pipe are provided in the frame ( 10 ), whereby the heat of the armature coil can be efficiently transferred to the frame, and the thrust of a rotor can be prevented from lowering according to a rise of temperature of the armature coil. |
