The motor housing with adjustable water channel cooling comprises a housing body and two longitudinal baffle plates arranged in the housing body. The casing body has an inner space with a ring-shaped cross-section, two longitudinal barrier plates divide the inner space into two independent cooling chambers with a semi-circular cross-section, and one of the longitudinal barrier plates is provided with a through hole. The through hole is provided with a control valve, and each cooling chamber is provided with a cooling rib and a water channel separated by the cooling rib. Two sides of each longitudinal barrier plate are respectively provided with a water inlet and a water outlet, The water inlets and water outlets on both sides of each longitudinal barrier plate are respectively communicated with the cooling chambers on the corresponding sides of the longitudinal barrier plate, and each cooling chamber has one water inlet and one water outlet.

Compared with the prior art, the motor housing with adjustable water channel cooling has strong cooling effect and uniform temperature, flexible operation, energy saving and environmental protection.

The motor shell cooled by the adjustable water channel has good heat dissipation effect, which can quickly take away the heat on the shell, ensure that the heat of the motor core is quickly dissipated, and prolong the service life of the motor.