Reactor including tubular core, motor drive device, and amplifier device

Abstract

A reactor capable of eliminating a heat source provided within a power cabinet housing a motor drive device. The reactor includes a tubular core, a coil installed inside the core, a terminal which is provided at an axially first end of the core and which is connected to the coil, and an attachment flange which extends radially outside of the core and which is provided between the terminal and a second end of the core.

1 . An amplifier device comprising:
 a hollow power cabinet including a wall formed with a through-hole; and   a reactor, comprising:
 a tubular core; 
 a coil provided in the core; 
 a terminal provided at a first end of the core in an axial direction, the coil being connected to the terminal; and 
 an attachment flange extending radially outside of the core, and disposed at a position between the terminal and a second end of the core opposite the first end, 
   wherein the core is disposed in the through-hole so that the second end is exposed to the outside of the power cabinet while the terminal is located inside of the power cabinet, and   wherein the attachment flange is fixed to the wall so as to close the through-hole.