Internal performance monitoring for water filter
AssigneeHaier US Appliance Solutions, Inc.
InventorsAmin Firouzi, Gregory Sergeevich Chernov
Life of this patent
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Abstract
A water filter assembly with a sensing system coupled to an electrode in a feed water chamber and an electrode in a treated water chamber. A controller receives signals from the feed water and treated water electrodes that are proportional to a water quality parameter in the feed water chamber and the treated water chamber and determines a filter status based on the signals.
Claims20
A water filter assembly for a host appliance, the water filter assembly comprising:
- a filter housing defining a filter chamber, a feed water inlet, and a treated water outlet;
- a filter element received within the filter chamber defining a feed water chamber and a treated water chamber;
- a feed water electrode disposed in the feed water chamber;
- a treated water electrode disposed in the treated water chamber;
- a common electrode in electrical communication with the feed water chamber and the treated water chamber;
- an electric power supply in electrical communication with the feed water electrode, the treated water electrode, and the common electrode;
- a sensing system electrically coupled to the feed water electrode, the treated water electrode, and the common electrode;
- and
- a controller electrically coupled to the electric power supply and the sensing system, wherein the controller is configured to:
- receive a first signal from sensing system that is proportional to a water quality parameter of a content of the feed water chamber;
- receive a second signal from the sensing system that is proportional to a water quality parameter of a content of the treated water chamber;
- and
- determine a filter status based on the first and second signals.
A method of operating a water filter assembly comprising a filter housing defining a filter chamber, a filter element received within the filter chamber defining a feed water chamber and a treated water chamber, a feed water electrode disposed in the feed water chamber, a treated water electrode disposed in the treated water chamber, a common electrode in electrical communication with the feed water chamber and the treated water chamber, an electric power supply in electrical communication with the feed water electrode, the treated water electrode, and the common electrode, a sensing system comprising a first electrical measurement sensor electrically coupled to the feed water electrode and the common electrode and a second electrical measurement sensor electrically coupled to the treated water electrode and the common electrode, and a controller electrically coupled to the electric power supply and the sensing system, the method comprising:
- receiving at the controller a first signal from the first electrical measurement sensor that is proportional to a water quality parameter of a content of the feed water chamber;
- receiving at the controller a second signal from the second electrical measurement sensor that is proportional to a water quality parameter of a content of the treated water chamber;
- determining a conductivity of the content of the feed water chamber;
- determining a conductivity of the content of the treated water chamber;
- determining a status of the filter element based on the conductivity of the content of the feed water chamber and the conductivity of the content of the treated water chamber;
- and
- displaying a status of the filter element on a display.
A water filter assembly for a host appliance, the water filter assembly comprising:
- a filter housing defining a filter chamber, a feed water inlet, and a treated water outlet;
- a filter element received within the filter chamber defining a feed water chamber and a treated water chamber;
- a feed water sensor array disposed in the feed water chamber;
- a treated water sensor array disposed in the treated water chamber;
- an electric power supply in electrical communication with the feed water sensor array and the treated water sensor array;
- a sensing system electrically coupled to the feed water sensor array and the treated water sensor array;
- and
- a controller electrically coupled to the electric power supply and the sensing system, wherein the controller is configured to:
- receive a first signal from the sensing system that is proportional to a water quality parameter of a content of the feed water chamber;
- receive a second signal from the sensing system that is proportional to a water quality parameter of a content of the treated water chamber;
- and
- determine a filter status based on the first and second signals.
Dependencies are inferred from the claim text.