Systems and methods for automatically performing a flush operation for a water supply

Patent metadata

Field	Value
Publication number	US-12065810-B2
Application number	US-202117518740-A
Country	US
Kind code	B2
Filing date	Nov 4, 2021
Priority date	Nov 4, 2021
Publication date	Aug 20, 2024
Grant date	Aug 20, 2024

Abstract

A method of operating an appliance includes receiving an initiation trigger to perform a flush operation, supplying water to a container of the appliance, draining the supplied water from the container, measuring a temperature of the supplied water to the container, determining that the temperature of the supplied water is above a predetermined temperature threshold, and halting the supply of water to the container via the water supply.

First claim

What is claimed is:

1. A method of operating an appliance, the appliance comprising a water supply, a temperature sensor provided in the water supply, a container, and a drain pump, the method comprising:
receiving a flushing initiation trigger to perform a flushing operation, wherein the flushing initiation trigger is based on at least one of an ambient atmospheric temperature, a user input, a time of day, a time of year, or a predetermined schedule;
initiating the flushing operation, the flushing operation comprising supplying flushing water to the container via the water supply and draining the flushing water from the container via the drain pump, wherein initiating the flushing operation comprises activating the drain pump simultaneously with the supplying of the flushing water to the container;
measuring, via the temperature sensor, a temperature of the flushing water supplied to the container;
determining that the temperature of the flushing water is above a predetermined temperature threshold; and
stopping the flushing operation upon determining that the temperature of the flushing water is above the predetermined temperature threshold, wherein the user input comprises a vacancy setting, the vacancy setting denoting a period of inoccupancy of a building containing the appliance.

2. The method of claim 1 , wherein the temperature sensor is provided within the container, and wherein initiating the flushing operation comprises:
supplying the flushing water to the container at a first time point;
determining that the temperature of the flushing water is above the predetermined temperature threshold at a second time point after the first time point; and
activating the drain pump to drain the flushing water from the container at a third time point after the second time point.

3. The method of claim 1 , wherein the appliance is a washing machine and the container is a wash tub, and wherein the water supply comprises a hot water supply and a cold water supply.

4. The method of claim 3 , wherein supplying the flushing water to the container of the appliance via the water supply comprises:
opening a hot water valve to supply hot water from the hot water supply to the wash tub.

5. The method of claim 3 , wherein supplying the flushing water to the container of the appliance via the water supply comprises:
opening a cold water valve to supply cold water from the cold water supply to the wash tub.

6. The method of claim 1 , wherein the appliance is a dishwasher and the container is a washing chamber.

7. The method of claim 1 , further comprising:
resupplying, via the water supply, flushing water to the container a predetermined amount of time after determining that the temperature of the flushing water is above the predetermined temperature threshold, wherein the predetermined amount of time is determined according to the ambient atmospheric temperature.

8. The method of claim 1 , further comprising:
determining that one or more objects are present within the container prior to supplying the flushing water to the container; and
alerting a user that the one or more objects are present within the container.

9. An appliance, comprising:
a container configured to store a liquid therein;
a liquid supply line fluidly connected to the container through which the liquid is supplied to the container;
a liquid supply valve provided on the liquid supply line and configured to selectively allow the liquid to pass through the liquid supply line into the container;
a temperature sensor provided at one of the liquid supply line or the container, the temperature sensor configured to detect a temperature of the liquid;
a drain line fluidly connected with the container through which the liquid drains from the container;
a drain pump connected to the drain line to selectively release the liquid from the container; and
a controller provided within the appliance, the controller configured to perform a series of operations, the series of operations comprising:
receiving a flushing initiation trigger to perform a flushing operation;
initiating the flushing operation, the flushing operation comprising supplying flushing water to the container via the liquid supply line and draining the flushing water from the container via the drain pump;
determining that one or more objects are present within the container prior to supplying the flushing water to the container;
alerting a user that the one or more objects are present within the container;
measuring, via the temperature sensor, a temperature of the flushing water supplied to the container;
determining that the temperature of the flushing water is above a predetermined temperature threshold;
resupplying, via the liquid supply line, the flushing water to the container a predetermined amount of time after determining that the temperature of the flushing water is above the predetermined temperature threshold; and
stopping the flushing operation upon determining that the temperature of the flushing water is above the predetermined temperature threshold and after resupplying the flushing water to the container.

10. The appliance of claim 9 , wherein the appliance is a washing machine and the container is a wash tub, and wherein the liquid supply line comprises a hot water supply and a cold water supply.

11. The appliance of claim 10 , wherein supplying the flushing water to the container of the appliance via the liquid supply line comprises:
opening a hot water valve to supply hot water from the hot water supply to the wash tub.

12. The appliance of claim 10 , wherein supplying the flushing water to the container of the appliance via the liquid supply line comprises:
opening a cold water valve to supply cold water from the cold water supply to the wash tub.

13. The appliance of claim 9 , wherein the appliance is a dishwasher and the container is a washing chamber.

14. The appliance of claim 9 , wherein the flushing initiation trigger is based on at least one of an ambient atmospheric temperature, a user input, a time of day, a time of year, or a predetermined schedule.

15. The appliance of claim 14 , wherein the user input comprises a vacancy setting, the vacancy setting denoting a period of inoccupancy of a building containing the appliance.

16. The appliance of claim 15 , wherein the predetermined amount of time is determined according to the ambient atmospheric temperature.

Assignees

• Haier Us Appliance Solutions Inc

Inventors

• Scheckelhoff Ryan James

Classifications

• E03B7/12

  by preventing freezing · CPC title

• A47L15/0018

  Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control (for control of water softening or water softener regeneration A47L15/4229; for control of water level A47L15/4244; for control of bad smells or odours A47L15/4276; for control of water temperature A47L15/4287; for control of water pressure A47L15/4289; for control of condition of crockery or tableware A47L15/4295; for control of condition of washing water A47L15/4297) · CPC title

• E03B7/071

  Arrangement of safety devices in domestic pipe systems, e.g. devices for automatic shut-off · CPC title

• A47L2301/08

  Other manual input · CPC title

• A47L2501/26

  Indication or alarm to the controlling device or to the user · CPC title