CANNED LINEAR MOTOR ARMATURE AND CANNED LINEAR MOTOR

摘要

A canned linear motor stator (100) (armature) includes a winding fixing frame (109), an armature winding (108) fixed to the winding fixing frame (109), a rectangular metal case (101) surrounding the winding fixing frame (109), a can (102) sealing both openings of the case (101), a coolant passage (110) formed in a sealed space defined by the metal case (101) and the can (102), a coolant inlet (106) and a coolant outlet (107) arranged at the entrance and the exit of the coolant passage (110), respectively. The can is made from a resin and especially a filler is made from a resin of glass fiber or carbon fiber. Thus, it is possible to eliminate heating of the can portion attributed to eddy current and the armature can also be used for a high-speed application. Furthermore, it is possible to provide a canned linear motor armature and a canned linear motor capable of suppressing vibration of the winding fixing frame.