Clothes drying temperature detection control method and clothes drier

A technology for detection and control of clothes dryers, applied in the field of clothes dryers, can solve problems such as affecting environmental comfort, and achieve the effects of improving drying efficiency, reducing drying time, and making accurate judgments.

Active Publication Date: 2012-06-27
QINGDAO HAIER DRUM WASHING MACHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the latter is that when the dry air is discharged to the outside, the water vapor in the humid air cannot be c

Method used

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  • Clothes drying temperature detection control method and clothes drier
  • Clothes drying temperature detection control method and clothes drier
  • Clothes drying temperature detection control method and clothes drier

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Such as figure 1 with figure 2 As shown, the clothes dryer according to the present invention includes a clothes bucket 2, an air outlet, a filter 3, a condenser 1, a water collection box 4, a drying fan 5, a heating device 6 and an air inlet. The tuyere is communicated with the condenser 1, the condenser 1 is communicated with the water collecting box 4, the water collecting box 4 is communicated with the air inlet, the filter 3 is arranged between the air outlet and the condenser 1, and the drying fan 5 and the heating device 6 are arranged successively. Between the water collection box 4 and the air inlet (the air outlet and the air inlet are not shown in the figure). The water collecting box 4 communicates with the outside through the drain pump 41 , and the water collecting box 4 is provided with a water level sensor switch 42 for controlling the opening of the drain pump 41 .

[0053] Wherein clothes bucket 2, air outlet, filter 3, drying fan 5, heating device ...

Embodiment 2

[0060] Such as Figure 5 to Figure 7 As shown, the present invention adds a waste heat recovery device 7 on the basis of Embodiment 1. The waste heat recovery device 7 is set between the filter 3 and the condenser 1, and is also set between the water collection box 4 and the drying fan 5 In the meantime, the waste heat recovery device 7 is provided with two sets of air flow paths, which are hot and humid air path 71 and waste heat recovery air path 72 respectively. The two sets of air flow paths form a heat exchange structure, and the hot and humid air path 71 communicates with the filter 3 and the device 1, the waste heat recovery air path 72 is connected to the water collection box 4 and the drying fan 5, and the hot and humid air comes out from the air outlet of the clothes tub 2 and then passes through the hot and humid air air path 71 of the waste heat recovery device 7, the condenser 1, and the water collecting box 4, and then through the waste heat recovery air path 72 ...

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Abstract

The invention discloses a clothes drying temperature detection control method and a clothes drier. In the process of drying, a control system is used for detecting a change delta T of temperature of outgoing air in front and in rear of a condenser after drying, and determines whether the change of temperature difference of outgoing air before or after passing the condenser reaches a corresponding set value delta Tt_g or not; g is the weight of clothes to be dried; if the delta T is larger than or equal to the delta Tt_g or lasts for a set time T within a certain set value range, the clothes are dried and a heating device stops operating; after the heating device stops operating, a drying program proceeds and does not ends until the detected temperature of incoming air is lower than the set temperature; and in the process of drying, heat of humid hot air after being subjected to heat exchange with clothes and before being subjected to cooling and dehumidification is subjected to heat exchange with air which is subjected to condensation and dehumidification, and the preheated air subjected to condensation and dehumidification is heated again and led into the clothes to dry the clothes. Using the waste heat saves electric energy and time, temperature detection and determination are accurate, and drying efficiency is improved.

Description

technical field [0001] The invention relates to a clothes dryer, in particular to a clothes dryer with a method for detecting and controlling the temperature of clothes drying by using waste heat to save electric energy and accurately judging the end of clothes drying. Background technique [0002] 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. [0003] The heat pump clothes drying device is provided with the following air circulation channels: the heated air heated by the cond...

Claims

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Application Information

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IPC IPC(8): D06F58/28D06F58/20D06F58/24
Inventor 梁海山吕佩师许升宋华诚宋斌
Owner QINGDAO HAIER DRUM WASHING MACHINE
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