Functional module, vehicle controller and vehicle

The utility model relates to a function module, a vehicle controller and a vehicle, the function module comprises a function module main body and a shell located on the outer side of the function module main body, the function module main body comprises a printed circuit board and a chip arranged on the printed circuit board, and the shell comprises a first plate body and a second plate body which are oppositely arranged; the functional module main body is clamped between the first plate body and the second plate body, the chip is close to the first plate body, and a cooling liquid flow channel for cooling liquid to flow through is at least formed in the first plate body. Through the technical scheme, the shell of the functional module not only can play a role in accommodating the functional module main body and protecting the printed circuit board and the chip, but also can be used as a carrier formed by the cooling liquid flow channel to realize a cooling effect on the functional module main body, a cooling