Vehicle power switching device

A power switching device (2) includes a power transmission unit (4) and a driving unit (5). The transmission unit (4) includes a differential (44), an axle (45) aligned with the differential (44), and a coupler (46) sleeved movably on one of the differential (44) and the axle (45). The driving unit (5) includes a controller (51), a first transmission mechanism (52) driven by the controller (51), and a second transmission mechanism (53) driven by the first transmission mechanism (52). The controlled (51) is a solenoid or an electric actuator, and is operable to activate the second transmission mechanism (53). The coupler (46) can be moved by the second transmission mechanism (53) to interconnect the differential (44) and the axle (45), so as to allow for co-rotation of the axle (45) with the differential (44).