Volute-free brain-free electronic water pump component, brain-free electronic water pump and heat management module

The utility model discloses a volute-free brain-free electronic water pump component. The volute-free brain-free electronic water pump component comprises a pump shell, a motor assembly and a wire harness assembly. The axial end of the pump shell is an impeller end, and the impeller end is used for being matched with a volute integrated on a base of an external vehicle heat management module to form an impeller cavity. A motor cavity is formed in the motor assembly pump shell, and the motor assembly is arranged in the motor cavity. The rotating output end of the motor assembly extends out of the impeller end and is provided with an impeller, and the impeller is arranged in the impeller cavity. The wire harness assembly is installed at the second axial end of the pump shell or the side wall of the pump shell, the input end of the wire harness assembly is electrically connected with the power input end of the motor assembly, and the output end of the wire harness assembly is used for being electrically connecte