Electrical device housing unit

The electrical device housing unit includes: an electrical device; a housing frame that houses the electrical device; and a back plate which is installed on the back surface of the accommodating frame and is provided with an opening communicated with the electrical equipment. The back plate includes: a first portion to be attached to the back surface of the housing frame; and an eave portion including a second portion bent from the first portion and positioned above the opening. The width of the eave portion is larger than the width of the electrical device, and the eave portion protrudes from the front surface of the electrical device toward the inner side, namely, the depth direction, compared with the back surface of the electrical device. 电气设备收容单元包含：电气设备；收容框，其对电气设备进行收容；以及背板，其安装于收容框的背面，并且具有与电气设备连通的开口。背板包含：第1部分，其用于安装于收容框的背面；以及檐部，其包含从第1部分弯曲并且与开口相比位于上方的第2部分。檐部的宽度大于电气设备的宽度，檐部与电气设备的背面相比，从电气设备的前表面向朝向内侧的方向即深度方向凸出。