Control center having cabinet with improved lateral strength and safety

Claim 1

A control center comprising: a cabinet having a vertical bus compartment disposed in the central portion of said cabinet and dividing said cabinet into a front portion and a rear portion, a pair of unit compartments disposed in said front and rear portions respectively, and a vertical wiring compartment disposed beside each of said unit compartments, a plurality of horizontal partition plates spaced vertically from each other in each of said unit compartments for partitioning each of said unit compartments into a plurality of unit rooms vertically superposed one above another, a pair of supporting plates at the rear of each of said unit rooms adjacent said vertical bus compartment and on each of the opposite lateral sides thereof and spaced laterally from each other, and a rear sheet metal plate disposed in the rear of each of said unit rooms and connected between said supporting plates and closing the space between said supporting plates and between adjacent ones of said partition plates, respectively, said rear plate further including at least one opening for allowing a plug-in type connector to extend therethrough; a plurality of plug-in type control units, each housed in an associated unit room, each plug-in type control unit including spaced opposed lateral plates and a crossarm connected between the upper corners of said lateral plates which, when the unit is housed in a corresponding unit room, is toward said vertical bus compartment, the remainder of the space between the edges of said lateral plates which are toward said vertical bus compartment being open, at least one plug-in type connector on said crossarm, and a mounting plate connected to said lateral plates and having electric equipment mounted thereon, said edges of said lateral plates, when the unit is housed in a corresponding unit room, abutting a corresponding supporting plate and rear plate.