Energy saver cycle

Abstract

Embodiments are related to a drying procedure and a household appliance for drying textile items, and more particularly to a dryer using controls based on a processor in order to control the drying operation making an efficient use of the heat source (electrical or gas), evaluating various parameters as temperature, time and humidity level in predetermined ranges.

Description

FIELD OF THE INVENTION[0001]Embodiments are related to a household appliance for drying textile items, and more particularly to a dryer using controls based on a processor in order to control the drying operation making an efficient use of the Heat Source (electrical or gas), evaluating various parameters such as temperature, time and humidity level in predetermined ranges.DESCRIPTION OF THE PREVIOUS ART[0002]Usually, a dryer is provided for drying a wet object (e.g., wet textiles). Hereinafter, the wet objects will be known as “textiles” or “clothes” without exclusive limitation to these.[0003]A common practice is to detect the humidity level of the textiles in a rotating drum using humidity sensors provided in a lint duct and / or an exhaust duct. A voltage signal from the humidity detector is used for estimating the humidity content of the items being dried, based on the composition characteristics of the textiles load. That is, an electric resistance measurement generated when the...

AI Technical Summary

Benefits of technology

The patent text describes a device for controlling the humidity and dryness of textile items in a container. The device uses a controller to monitor the humidity and elapsed time, and a central processing unit to estimate the remaining dryness time of the items based on their electrical resistance. The controller can adjust the drying cycle to ensure even drying and can control individual or jointly the heaters in the dryer to decrease power consumption and shorten the drying cycle time. Overall, the device enables a more precise and reliable detection and control of the dryness condition of textile items.

Problems solved by technology

Nevertheless, situations can occur which result in erroneous indications of the current level of dryness of the items.

Additionally, if a conductive part of dry textiles, e.g., a metallic button or zipper, is in contact with the sensor's electrodes, the sensor's resistance would be low, which would be a false indication of a wet load.

Thus, when the textiles are wet, it is sometimes possible for the sensor to erroneously detect a dry condition (high resistance) and, when textiles are dry, it is sometimes possible that the sensor erroneously detects a wet condition (low resistance).

Nevertheless, the noise reduction per se does not completely compensate the variations in load size or different dryers having air flow restrictions due to different ventilation.

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