Vehicle-mounted charger and vehicle

The invention provides a vehicle-mounted charger and a vehicle. The vehicle-mounted charger comprises a main power board; the power module assembly comprises a conductive substrate and a field effect transistor, the field effect transistor comprises a field effect transistor body and pins, the pins of the field effect transistor are attached to the surface of the conductive substrate, and the field effect transistor is electrically connected to the conductive substrate; the connecting piece comprises a connecting piece body, a first pin and a second pin, the connecting piece body is attached to the conductive substrate, one end of the first pin is electrically connected to the connecting piece body, the other end of the first pin is electrically connected to the conductive substrate, one end of the second pin is electrically connected to the connecting piece body, and the other end of the second pin is electrically connected to the conductive substrate. And the other end of the second pin is electrically conn