CPC F04D 29/426 (2013.01) [F04D 13/06 (2013.01); F04D 29/043 (2013.01); F04D 29/605 (2013.01)] | 9 Claims |
1. A micro water pump, comprising:
a housing having a base, an upper cover engaging with the base, an inner cavity, an inlet communicated with the inner cavity, and an outlet communicated with the inner cavity;
a drive mechanism installed in the housing, comprises a rotating shaft, an impeller arranged in the inner cavity and rotatably connected with the rotating shaft, a rotor installed in the impeller, and a stator installed in the base for driving the rotor to rotate; wherein
the rotating shaft comprises a first end surface and a second end surface arranged relatively parallel, a sidewall surface connecting the first end surface and the second end surface;
the upper cover includes a body part, and an accommodation slot formed by sinking from a surface of the body part close to the base;
one end of the rotating shaft close to the first end surface is embedded in the base; one end of the rotating shaft close to the second end surface is accommodated in the accommodation slot;
the accommodation slot comprises a groove bottom surface and a groove side surface formed by bending and extending from the groove bottom surface in a direction close to the base; the groove side surface abuts against the sidewall surface.
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