Abstract: A terminal joining structure includes a terminal having a tubular barrel portion and a flange portion that is integrally formed at the axis-direction end of the barrel portion, a conductor substrate on which is opened a through-hole for inserting the barrel portion, and a ring that fits on the barrel portion on the opposite side of the conductor substrate. On the barrel portion is formed a taper that increases in diameter toward the flange portion. The diameter of the larger-diameter portion of the taper is larger than the inner diameter of the through-hole. The terminal is caulked to cause radially outward expansion of an end part of the barrel portion, which passes through the ring, on the opposite side of the conductor substrate and is fixed to the conductor substrate together with the ring.

Abstract: A reactor apparatus for a railway vehicle includes a coil assembly, a side cover, through bolts inserted into the coil assembly, cover supporting members, a pair of frames, and ribs that reinforce the pair of frames. A support/fixation section of each frame is fixed to an under surface of a vehicle pedestal. The pair of the frames are disposed on both sides of the coil assembly, and support the through bolts and the cover supporting member. For each rib, leg members that extend from corresponding reinforcing body are penetrated into and welded to the corresponding frame. For each cover supporting member, a leg member that extends from corresponding cover supporting body is penetrated into and welded to the corresponding frame.

Abstract: A terminal joining structure includes a terminal having a tubular barrel portion and a flange portion that is integrally formed at the axis-direction end of the barrel portion, a conductor substrate on which is opened a through-hole for inserting the barrel portion, and a ring that fits on the barrel portion on the opposite side of the conductor substrate. On the barrel portion is formed a taper that increases in diameter toward the flange portion. The diameter of the larger-diameter portion of the taper is larger than the inner diameter of the through-hole. The terminal is caulked to cause radially outward expansion of an end part of the barrel portion, which passes through the ring, on the opposite side of the conductor substrate and is fixed to the conductor substrate together with the ring.

Abstract: A reactor apparatus for a railway vehicle includes a coil assembly, a side cover, through bolts inserted into the coil assembly, cover supporting members, a pair of frames, and ribs that reinforce the pair of frames. A support/fixation section of each frame is fixed to an under surface of a vehicle pedestal. The pair of the frames are disposed on both sides of the coil assembly, and support the through bolts and the cover supporting member. For each rib, leg members that extend from corresponding reinforcing body are penetrated into and welded to the corresponding frame. For each cover supporting member, a leg member that extends from corresponding cover supporting body is penetrated into and welded to the corresponding frame.