Electronic device and automobile charging device

The invention discloses an electronic device and an automobile charging device. The automobile charging device comprises a heat radiating base, an input board component, an output board component and a main power board component; the input board component is used for connecting an input end and is used for receiving an input signal; the output board component is used for connecting an output end and for receiving an output signal; the main power board component is arranged on the heat radiating base and is electrically coupled with the input board component and the output board component, used for converting the input signal into the output signal; the main power board component comprises a main power board and at least one first electronic element; the first electronic element is arranged on the main power board, so that the main power board has a convex part and a concave part relative to the convex part, wherein at least one of the input board component and the output board component is located in the concave part at least partially.