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US 12,529,379 B1Granted
Miniature pump
AssigneeAsia Vital Components Co., Ltd.
InventorChing-Hang Shen
Life of this patent
Estimating the term…
Abstract
A miniature pump including a pump housing, a rotor, a stator, a closing member connected to the top side, and a holding member. The pump housing includes a top side forming a pump chamber, a bottom side, an inlet and an outlet. An end of a shaft is fixed in the pump chamber, and a bearing is pivoted on the shaft. The rotor is provided in the pump chamber to circulate a working fluid passing through the pump chamber. The holding member is disposed on a side of the closing member corresponding to the bearing, and another end of the shaft is accommodated in the holding member.
Claims10
A miniature pump comprising:
- a pump housing having a top side, a bottom side, an inlet, and an outlet, wherein a pump chamber is defined on the top side, the pump chamber communicates with the inlet and the outlet, an end of a shaft is fixed in the pump chamber, and a bearing is pivoted on the shaft;
- a rotor disposed on the pump chamber and exposed to a working fluid, wherein the rotor is provided with an impeller having an impeller cover and with a magnetic member corresponding to the impeller, wherein the impeller is disposed outside the bearing to circulate the working fluid passing through the pump chamber;
- a stator disposed on the bottom side of the pump housing and corresponding to the magnetic member, wherein the stator is isolated from the working fluid;
- a closing member, wherein a side of the closing member is connected to the top side of the pump housing to close the pump chamber;
- and
- a holding member disposed on a side of the closing member corresponding to the bearing, wherein another end of the shaft is accommodated in the holding member and wherein the holding member inhibits the impeller cover from contacting the closing member.
3 more elements
Dependencies are inferred from the claim text.