Fuel cell system

The utility model relates to a fuel cell system. The fuel cell system comprises an electric pile, a fuel supply device and a pump, wherein the fuel supply device is used for supplying fuel to the electric pile. The pump comprises a pump head, a motor and a controller, the controller is used for controlling the motor, and the motor is used for driving the pump head. An inlet of the pump head communicates with an outlet of the electric pile, and an outlet of the pump head communicates with an inlet of the electric pile. A first cooling flow channel is arranged in the controller, and an outlet of the fuel supply device is communicated with an inlet of the electric pile through the first cooling flow channel. 本申请涉及一种燃料电池系统，包括：电堆、燃料供应装置以及泵。其中，燃料供应装置用于向所述电堆供应燃料。泵包括泵头、电机和控制器，控制器用于控制电机，电机用于驱动泵头。泵头的入口连通于电堆的出口，泵头的出口连通于电堆的入口。控制器内设有第一冷却流道，燃料供应装置的出口通过第一冷却流道连通于电堆的入口。