Patent ID: 8450885
Filing Date: 2013-05-28
Classification: H02K

Abstract:
1. A coolant-cooled linear motor, comprising: an armature including armature windings and a cooling jacket unit arranged to surround the armature windings, the cooling jacket unit including four cooling jackets defining four side faces parallel to the extension direction of the armature and two end blocks defining two opposite end faces in the extension direction of the armature, the cooling jackets and the end blocks being connected to one another in a box shape, each of the cooling jackets having an internal space to be supplied with a coolant, wherein each of the cooling jackets includes an inner wall and an outer wall defining the internal space; and a field magnet unit including a yoke made of a ferromagnetic material and permanent magnets arranged on the yoke, one of the armature and the field magnet unit making relative movement with respect to the other.