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US 2022/0029481 A1Published application
Rotor assemblies of water pumps
AssigneeIntex Industries Xiamen Co. Ltd.
InventorsZhi Xiong Huang, Ying Biao Zhang, Yaw Yuan Hsu
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Abstract
A rotor assembly of a water pump is provided including a rotor body, an upper bearing, a lower bearing, a magnet, an impeller, and a shaft. The rotor assembly also includes a rotor shaft core that ensures concentricity of the upper bearing, the lower bearing, the magnet, and the shaft. The present disclosure also provides a manufacturing method that involves overmolding the rotor body onto the rotor shaft core to encapsulate the magnet.
Claims21
A rotor assembly comprising:
- a rotor shaft core defining a through hole configured to receive a shaft;
- a magnet;
- a rotor body overmolded onto the rotor shaft core to encapsulate the magnet between the rotor body and the rotor shaft core;
- an impeller coupled to the rotor body;
- an upper bearing defining a through hole in axial alignment with the through hole of the rotor shaft core;
- and
- a lower bearing defining a through hole in axial alignment with the through hole of the rotor shaft core.
4 more elements
A rotor assembly comprising:
- a magnet;
- a rotor shaft core defining a through hole configured to receive a shaft, the rotor shaft core maintaining concentricity between the magnet and the through hole;
- a rotor body overmolded onto the rotor shaft core to encapsulate the magnet between the rotor body and the rotor shaft core;
- and
- an impeller coupled to the rotor body.
2 more elements
A method of manufacturing a rotor assembly comprising the steps of:
- providing a rotor shaft core defining a through hole;
- positioning the rotor shaft core in a mold with a magnet disposed around the rotor shaft core;
- and
- molding a rotor body and an impeller on the rotor shaft core.
1 more element
Dependencies are inferred from the claim text.