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US 2019/0159652 A1Published application
Dishwasher appliance having a pressure sensor for flood detection
AssigneeHaier US Appliance Solutions, Inc.
InventorKyle Edward Durham
Life of this patent
Estimating the term…
Abstract
A dishwasher appliance that includes features for prevention and detection of flood events or tub overfills without sacrificing performance or efficiency of the dishwasher appliance is provided. Moreover, methods for detecting and preventing such flood events are also provided.
Claims19
A method for detecting a flood event in a dishwasher appliance, the dishwasher appliance comprising a pressure sensor, a drain pump, and a circulation pump, the method comprising:
- determining whether the circulation pump is activated;
- determining whether a pressure sensor output of the pressure sensor is greater than or equal to a first pressure threshold for a predetermined time if the circulation pump is not activated, or, determining whether the pressure sensor output of the pressure sensor is greater than or equal to a second pressure threshold for a predetermined time if the circulation pump is activated;
- and
- activating the drain pump if the pressure sensor output is greater than or equal to either the first pressure threshold for the predetermined time or the second pressure threshold for the predetermined time.
1 more element
A dishwasher appliance, comprising:
- a cabinet;
- a tub positioned within the cabinet and defining a wash chamber for receipt of articles for washing;
- one or more spray assemblies;
- a circulation pump for circulating water to the one or more spray arm assemblies;
- a pressure sensor;
- a drain pump;
- a controller communicatively coupled with the pressure sensor, the drain pump, and the circulation pump, the controller configured to:
- determine whether the circulation pump is activated;
- determine whether a pressure sensor output of the pressure sensor is greater than or equal to a first pressure threshold for a predetermined time if the circulation pump is not activated, or, determine whether the pressure sensor output of the pressure sensor is greater than or equal to a second pressure threshold for a predetermined time if the circulation pump is activated;
- and
- activate the drain pump if the pressure sensor output is greater than or equal to either the first pressure threshold or the second pressure threshold.
8 more elements
Dependencies are inferred from the claim text.