Water-cooling device for stator of driving motor

The utility model relates to a water cooling device for driving motor stator which adopts the stator water inner cooling method, the stator is cooled by the cooling water channel which is arranged axially in stator seat along stator seat ring back and forth, the cooling water channel can be single roundabout water channel or can be composed of one or more roundabout water channels, each water channel is provided with a cooling water outlet and a cooling water inlet, both the cooling water outlet and the cooling water inlet can be arranged axially at the same side of the stator seat and also can be arranged axially at the different side of the stator seat, for one or more roundabout water channels, water inlet and outlet can be arranged at the same or inverse direction so that the flow direction of the roundabount water channel in the stator seat is at the phase flow, therefore, the utility model can further reduce the temperature gradients of the different positions in the stator seat.