accordingly the strength of securing the housing 4 to the railway vehicle body 2 can be improved while reducing the size and weight of the housing 4 a second embodiment of the present invention is described next the sections same as those of the first embodiment are simplified and the sections different from those of the first embodiment are described in detail the exterior of the housing 4 of the second embodiment is identical to that of the first embodiment the internal structure of the housing 4 is different from that of the first embodiment and is therefore described with reference to fig8 fig8 is a cross sectional view showing the rear surface side of the railway vehicular power converter according to the second embodiment of the present invention as shown in fig8 a c channel shaped reinforcing member 8 is installed inside the housing 4 along an upper end of the side surface part of the housing 4 the reinforcing member 8 is also installed at each of upper ends of front and rear surface parts of the housing 4 along the lengths of these upper ends as with the first embodiment the first bent part 9 and the second bent part 10 are formed at either end part of the reinforcing member 8 next the reinforcing members 8 installed at the front and rear surface parts of the housing 4 are described with reference to fig9 fig9 is a front view of the reinforcing member of the railway vehicular power converter according to the second embodiment of the present invention as shown in fig9 the total length of each reinforcing member 8 is set at a length equivalent to those of the front and rear surface parts of the.