Abstract: a stator core, a bobbin fixed on the stator core, and a plurality of windings wound on the bobbin, characterized in that the stator further comprises an elastic member with one end fixed onto the insulating frame, the other end of the elastic member is resisted against and thereby forcing the bobbin to axially position the stator.

Abstract: A liquid pump includes a pump house with an electric motor housed therein, a pump cover connected to the pump house, an impeller housed in the pump cover and driven by the motor, and a sleeve disposed between the pump cover and the pump house. Two of the pump cover, the pump house, and the sleeve are respectively provided with an outer binding segment and an inner binding segment, the outer binding segment is made of polyphenylene sulfide mixed with glass fiber, and permeable to a laser light, the inner binding segment is cable of absorbing the laser light.