Pump device

A pump device is provided with a motor having a motor rotor, a stator provided with a stator coil, and a rotating shaft, a pump having a pump rotor connected to one side of the rotating shaft in the axial direction, and a pump housing for housing the pump rotor, a motor housing for housing the pump rotor, a substrate, and a bus bar. The motor housing has a closed-end cylindrical shape having a side portion in which the stator is fixed and a bottom portion provided on the other side in the axial direction of the rotating shaft, and accommodates the motor rotor in the internal space, and the substrate is provided with a driver for driving the motor and is provided on the outer surface side of the bottom portion in the motor housing. And a bus bar that electrically connects the driver and the stator coil and is provided in a state in which at least a portion thereof is exposed to the outside so as to be visible when viewed from the outside of the motor housing. 本发明提供一种泵装置，该泵装置具备电动机、泵、电动机壳体、基板以及母线，上述电动机具有电动机转子、设有