A control method and device for a heat pump fan

By dividing the fan into gears according to the fan's operating current value and controlling the fan's gear switching, the problem of insufficient air quality flow rate of air source heat pumps in high-altitude areas is solved, the consistency of the unit's operating status and energy efficiency are improved, and the unit's lifespan is extended.

CN117824220BActive Publication Date: 2026-07-21GREE ELECTRIC APPLIANCE INC OF ZHUHAI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GREE ELECTRIC APPLIANCE INC OF ZHUHAI
Filing Date
2023-12-05
Publication Date
2026-07-21

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Abstract

The application discloses a control method and device of a heat pump fan, and the method comprises the following steps: determining whether the fan needs to be controlled to shift gears according to a predetermined rule; if yes, the fan is controlled to shift gears, wherein the gears of the fan are divided according to the current value of the fan operation, so that the fan operates according to the current value corresponding to the gear, thereby solving the technical problem that the overall capacity and energy efficiency of the unit are attenuated and the overall service life of the unit is affected when the heat pump fan is used in a high-altitude area due to the low air density and the low air mass flow.
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