NOVELTY - The vibration reduction apparatus has a support hub (84c) which is standingly arranged from a bottom wall (84d) in a lower storage case (84) in the position spaced apart from a side wall (84a). A capacitor unit (82) is spaced apart and arranged from side and bottom walls and fixedly supported at upper end of support hub through a washer-like rubber (87) in a flange (82bx). The lower case is fixedly supported by a vehicle body (1a) through an extension (84bx) of flange (84b) of lower case.    USE - Vibration reduction apparatus of storage case of electric equipment e.g. power control unit (PCU) for vehicle (claimed) e.g. hybrid vehicle. Can also used in electric vehicle and fuel-cell vehicle.    ADVANTAGE - Since spaces are formed between capacitor unit and respective side and bottom walls, the transmission of vibration of horizontal direction and up-down direction of capacitor unit to support hub and inner wall of lower case can be prevented directly. The transmission of vibration to the vehicle body from storage case of power control unit (PCU) is reduced, by using washer-like rubber. Since the need for installing a bracket between storage case and vehicle body for extending a vibration transmission path between lower case and vehicle body is avoided, the space saving at the time of fixing storage case to vehicle body can be achieved and the speed on degree of vehicle-mounted layout of PCU can be improved. The damping effect of vibration can be acquired, by fixedly supporting the extension of lower case to the vehicle body. The vibration transmitted to capacitor unit can be attenuated as the hub and side wall cover the capacitor unit. Hence vibration transmitted to vehicle body from storage case is reduced and noise and vibration performance of vehicle can be improved.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the power control unit.    Vehicle body (1a)    Capacitor unit (82)    Flange (82bx)    Lower storage case (84)    Side wall (84a)    Flange (84b)    Extension (84bx)    Support hub (84c)    Bottom wall (84d)    Washer-like rubber (87)