Bulk dispenser fluid level sensing and out of balance detection for a washing machine appliance

摘要

A method and apparatus for sensing the level of fluid present in a dispenser, such as a detergent or fabric softener dispenser, of a washing machine appliance and to detecting an out of balance condition for such appliance is provided. A pressure sensor is used to determine the level of fluid present and to provide indications of the same at various levels of use of the fluid. One or more pressure sensors can also be used to detect an out of balance condition when the appliance is a washing machine.

主权项

1. A washing machine, comprising:
a cabinet; a wash tub received in said cabinet and configured for containing fluids used in a washing process; a wash basket received in said wash tub and configured for the receipt of articles during the washing process; a fluid dispenser for delivering a fluid into said wash tub, said fluid dispenser comprising a container for the storage of the fluid, wherein said container is flexible and is positioned between said wash tub and said cabinet such that the impact of said wash tub on the container results in a fluid level change in the container that can be detected by a pressure sensor; said pressure sensor configured to provide a signal indicative of a level of fluid in the container of said dispenser; and a hose connected between said pressure sensor and said container such that said pressure sensor is not attached directly to said container, said hose containing a gas that provides fluid communication between the fluid in said container and said pressure sensor whereby the pressure sensor can detect the level of fluid present in said container.