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Dryer Control Method

A control method and technology for clothes dryers, which are applied to household clothes dryers, textiles, papermaking, washing devices, etc., and can solve problems affecting the working performance of clothes dryers and measurement deviations, etc.

Active Publication Date: 2020-10-20
QINGDAO HAIER WASHING MASCH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The control method is by measuring the humidity of the clothes, the absolute moisture content of the incoming air, the absolute moisture content of the outgoing air, the temperature of the incoming air, the temperature of the return air, and the temperature between the incoming air and the return air. The measurement deviation caused by a long time will affect the working performance of the dryer

Method used

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Examples

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Comparison scheme
Effect test

Embodiment 1

[0039] like figure 2 As shown, in the dryer control method of the present invention, the dryer heating device is provided with a first heating power and a second heating power, the first heating power is greater than the second heating power, and the wet clothes are put into the dryer , select the drying grade, start the program, and start drying. The heating device first heats with the first heating power, detects the temperature of the air outlet and the drying time in real time, and judges whether the moisture content of the load reaches the preset value according to the detected temperature of the air outlet and the drying time. The set limit value, when the limit value is reached, the control heating device is switched to the second heating power to continue heating for the set time, and then the clothes drying is completed.

[0040] Or, the difference from the above solution is: judge whether the load temperature reaches the preset limit value according to the detected ...

Embodiment 2

[0042] figure 1 In order to obtain the fitting function curve of the moisture content of the clothes and the maximum temperature of the corresponding clothes through data analysis, the fitting function is T=At 2 +Bt+C, T is the temperature value of the air outlet, t is the drying time, and A, B, and C are constants. For example, when the moisture content of the load is 10%, the fitting function is T=A 1 t 2 +B 1 t+C 1 , the corresponding maximum load temperature is 65°C. During the drying process, when the detected temperature value of the air outlet and the drying time satisfy the fitting function T=A 1 t 2 +B 1 t+C 1 At this time, control the heating power of the heating device to reduce from 1600W to 1200W, and then continue to dry for a period of time. 1 t, D 1 is a constant, and t is the running time when the moisture content of the clothes reaches 10%, that is, the working time when the heating power is 1600W, until the final moisture content of the clothes reac...

Embodiment 3

[0045] This embodiment is different from the above-mentioned embodiment 2. Different drying grades of clothes dryers are equipped with a fitting function T=At with the same load moisture content of 40%. 2 +Bt+C, when the temperature value of the detected air outlet and the drying time satisfy the fitting function T=At 2 When +Bt+C, control the heating power of the heating device to reduce from 1600W to 1400W, and then continue to dry for a period of time D 3 t, t is the running time when the moisture content of the clothes reaches 40%, reaching the set drying level, the final moisture content of the clothes is 25%, or drying for a period of time with a heating power of 1400W D 4 t, to reach another set drying level, the final moisture content of the clothes is 15%, or, the heating power is 1400W to dry for a period of time D 4 t, reaching another set drying level, the final moisture content of the clothes is 10%. The way is to adjust the working time of the second heating po...

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Abstract

The invention discloses a clothes dryer control method. A clothes dryer heating device is provided with at least two heating powers; At the beginning of clothes drying, the heating device is controlled to heat at a first heating power; the air outlet temperature and the drying time are detected in real time; whether the load water content and / or load temperature reach to preset limit values is determined according to the detected air outlet temperature and the drying time; when the load water content and / or load temperature reach to the preset limit values, the heating device is controlled to heat at a second heating power for a set time period, then clothes drying is completed. The method is simple and reliable, which can meet the needs of users and reduce cost. At the beginning of a clothes drying process, the heating device heats at a higher heating power; and under the condition that the dryness of clothes reaches to a preset value, the heating device is controlled to heat at a lower heating power for a set time period. By means of the method, burn of clothes due to high temperature can be avoided; the final water content of clothes can be accurately controlled, which effectively increase drying effect.

Description

technical field [0001] The invention relates to drying equipment, in particular to a clothes dryer, especially a method for controlling the clothes dryer. Background technique [0002] As the name suggests, a clothes dryer is a device for drying clothes. The advent of clothes dryers has brought great convenience to people's lives, enabling people to get dry clothes even in rainy days. [0003] In a drying mechanism used in a clothes dryer or a washer-dryer, a device for generating heated air often adopts a heating method in which air is heated by a heater. Existing electric heating dryers generally use heating wires or heating tubes as the heat source. Such products have high energy consumption, long drying time and poor safety. In order to reduce energy consumption, a heat pump dryer has been developed, which uses a heat pump system to strengthen the recycling of heat, improve heat utilization efficiency, and reduce power consumption. [0004] The heat pump clothes drying...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06F58/10D06F58/20D06F58/26D06F58/40D06F103/32D06F103/38D06F105/28
CPCD06F58/10D06F58/20D06F58/26D06F58/30D06F58/38D06F2103/04D06F2103/08
Inventor 施衍奇邴进东王健
Owner QINGDAO HAIER WASHING MASCH CO LTD
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