Heat pump type washing and drying integral machine, and evaporator cleaning method and device thereof

A technology for cleaning devices and evaporators, which is applied in the field of washing machines and can solve problems such as easy clogging of the evaporator surface and affecting drying efficiency

Pending Publication Date: 2019-06-21
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the drying process of clothes, a lot of fine dander will be produced, driven by the circulation fan, it will enter the drying circulation s

Method used

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  • Heat pump type washing and drying integral machine, and evaporator cleaning method and device thereof
  • Heat pump type washing and drying integral machine, and evaporator cleaning method and device thereof
  • Heat pump type washing and drying integral machine, and evaporator cleaning method and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] In order to solve the above problems, this embodiment provides a method for cleaning the evaporator of a heat pump type washing and drying machine, such as figure 1 As shown, the cleaning method includes the following steps:

[0046] Step S1, the evaporator enters the cleaning mode, turns on the fan and keeps the compressor running at a frequency of 45-60Hz.

[0047]Receive the cleaning command of the evaporator, switch the current operation mode of the heat pump washing and drying machine to the self-cleaning mode; or set the cleaning trigger mechanism in the heat pump washing and drying machine, calculate the total running time, wait for the heat pump washing and drying machine After the machine running time reaches the target time, it will automatically switch from the current running mode to the evaporator cleaning mode. Wherein, the operation target duration of the cleaning trigger mechanism is the time set by the user in the heat pump washer-dryer system. After ...

Embodiment 2

[0054] This embodiment provides a method for cleaning the evaporator of a heat pump type washing and drying machine, such as figure 2 As shown, the cleaning method includes the following steps:

[0055] Step S1, the evaporator enters the cleaning mode, turns on the fan and keeps the compressor running at a frequency of 45-60Hz;

[0056] Step S2, when the surface of the evaporator is condensed, the fan is turned off, and the compressor is controlled to increase the frequency and continue to run;

[0057] Step S3, when the surface temperature of the evaporator is lower than 0°C, turn on the fan, and control the compressor to continue running after down-frequency;

[0058] Step S4, when the surface temperature of the evaporator is greater than 0°C, exit the evaporator cleaning mode and turn off the compressor.

[0059] Compared with embodiment 1, this embodiment is different in that step S4 is added, wherein steps S1, S2 and S3 can refer to the specific scheme of embodiment 1 ...

Embodiment 3

[0063] This embodiment provides a method for cleaning the evaporator of a heat pump type washing and drying machine, such as image 3 As shown, the cleaning method includes the following steps:

[0064] Step S1, the evaporator enters the cleaning mode, turns on the fan and keeps the compressor running at a frequency of 45-60Hz;

[0065] Step S2, when the surface of the evaporator is condensed, the fan is turned off, and the compressor is controlled to increase the frequency and continue to run;

[0066] Step S200, spraying and cooling the condenser;

[0067] Step S3, when the surface temperature of the evaporator is lower than 0°C, turn on the fan, and control the compressor to continue running after down-frequency;

[0068] Step S300, stop spraying the condenser.

[0069] Step S4, when the surface temperature of the evaporator is greater than 0°C, exit the evaporator cleaning mode and turn off the compressor.

[0070] Compared with embodiment 1 and embodiment 2, the diffe...

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Abstract

The invention relates to the technical field of washing machines, in particular to a heat pump type washing and drying integral machine, and an evaporator cleaning method and device thereof. The evaporator cleaning method includes the following steps that a fan is started, and a compressor is kept to run at the frequency of 45-60 Hz; after evaporator surface condensation, the fan is turned off, and the compressor is controlled to increase the frequency and continues to run; when the surface temperature of the evaporator is lower than 0 DEG C, the fan is started, and the compressor is controlled to reduce the frequency and continues to run. The cleaning device includes a frequency adjustment device, a fan switch and a temperature detection device, and the frequency adjustment device is usedfor controlling the work frequency of the compressor, the fan switch is used for controlling the on-off state of the fan independently, and the temperature detection device is used for detecting thetemperature on the surface of the evaporator. The evaporator cleaning method and the device are adopted, clothing nap and other impurities attached onto the heat pump type washing and drying integralmachine can be effectively removed, and thus after the whole machine used many times, the subsequent drying efficiency is not affected by the impurities attached onto the evaporator.

Description

technical field [0001] The present application relates to the technical field of washing machines, in particular, to a method and device for cleaning an evaporator of a heat pump integrated washing and drying machine, and also relates to a heat pump integrated washing and drying machine equipped with the device. Background technique [0002] The all-in-one washing and drying machines in the related art are mostly of the electric heating type, and the washing or drying function is completed by heating water or air through the heating tube, and the heating tube is used for heating, and the energy consumption is high, so there is a trend of using a heat pump system to dry clothes. All-in-one washing and drying machine. The heat pump washing and drying machine can achieve low-temperature drying, and is more energy-efficient than the general electric heating drying, and is gradually welcomed by the market. However, during the drying process of clothes, a lot of fine dander will ...

Claims

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Application Information

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IPC IPC(8): D06F25/00D06F58/22D06F58/28
CPCY02B40/00
Inventor 林关城陈波朱静刘佳戴浩乾祝蔚锋关天挺
Owner GREE ELECTRIC APPLIANCES INC
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