Linear motor
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...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | 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 tie frame, and the thrust of a rotor can be prevented from lowering according to a rise of temperature of the armature coil. |
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