Washing machine appliances and methods of operation

Inactive Publication Date: 2019-08-08
HAIER US APPLIANCE SOLUTIONS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes a method for operating a washing machine appliance. The method involves rotating articles inside the tub at different speeds to measure the movement of the tub and determine if there is any out-of-balance. If there is, the method allows the tub to rotate at a higher speed to correct the issue. The technical effect of this invention is to improve the stability and efficiency of washing machines during operation.

Problems solved by technology

Accordingly, when the basket rotates, in particular during a spin cycle, the imbalance in clothing weight may cause the basket to be out-of-balance within the tub, such that the axis of rotation does not align with the cylindrical axis of the basket or tub.
Such out-of-balance issues can cause the basket to contact the tub during rotation, and can further cause movement of the tub within the cabinet.
Significant movement of the tub can, in turn, cause excessive noise, vibration or motion, or damage to the appliance.
However, such systems may fail to accurately determine the position of articles within the tub or basket.
Moreover, in the case of balancing rings, such systems may increase the amount of energy or torque required to rotate the basket, thereby decreasing efficiency.

Method used

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  • Washing machine appliances and methods of operation
  • Washing machine appliances and methods of operation
  • Washing machine appliances and methods of operation

Examples

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Embodiment Construction

[0019]Reference now will be made in detail to embodiments of the invention, one or more examples of which are illustrated in the drawings. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For instance, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. Thus, it is intended that the present invention covers such modifications and variations as come within the scope of the appended claims and their equivalents.

[0020]In order to aid understanding of this disclosure, several terms are defined below. The defined terms are understood to have meanings commonly recognized by persons of ordinary skill in the arts relevant to the present invention. The terms “includes” a...

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PUM

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Abstract

A washing machine appliance, including one or more methods of operation, is provided herein. A method of operation may include rotating articles within a tub at a tumble speed for a first period and rotating articles within the tub at a pre-plaster speed for a second period following the first period. The pre-plaster speed may be greater than the tumble speed. The method may also include measuring movement of the tub during the second period. The method may further include determining whether a set condition is met based on the measured movement, and rotating articles within the tub at a plaster speed in response to determining the set condition is met based on the measured movement.

Description

FIELD OF THE INVENTION[0001]The present subject matter relates generally to washing machine appliances, such as horizontal axis washing machine appliances, and methods for monitoring load balances in such washing machine appliances.BACKGROUND OF THE INVENTION[0002]Washing machine appliances generally include a wash tub for containing water or wash fluid (e.g., water and detergent, bleach, or other wash additives). A basket is rotatably mounted within the wash tub and defines a wash chamber for receipt of articles for washing. During normal operation of such washing machine appliances, the wash fluid is directed into the wash tub and onto articles within the wash chamber of the basket. The basket or an agitation element can rotate at various speeds to agitate articles within the wash chamber, to wring wash fluid from articles within the wash chamber, etc. Washing machine appliances include vertical axis washing machine appliances and horizontal axis washing machine appliances, where ...

Claims

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Application Information

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IPC IPC(8): D06F35/00D06F33/02D06F33/48
CPCD06F35/006D06F33/02D06F2103/24D06F2105/48D06F33/48D06F2103/26D06F34/16
InventorDEDOW, GREGORY ALLENDAVIS, PAUL OWEN
OwnerHAIER US APPLIANCE SOLUTIONS INC