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Heat pump clothes dryer control method and heat pump clothes dryer

A control method and technology for clothes dryers, which are applied to household clothes dryers, washing devices, textiles and papermaking, etc., can solve the problems of high failure rate and reduced service life of compressor motors, and achieve reduced drying time and reduced drying time. Clothing energy consumption, increase the effect of dehumidification and drying effect

Active Publication Date: 2012-09-19
QINGDAO HAIER DRUM WASHING MACHINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The high-load work of the refrigeration system leads to a high failure rate of the compressor motor and reduces the service life

Method used

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  • Heat pump clothes dryer control method and heat pump clothes dryer
  • Heat pump clothes dryer control method and heat pump clothes dryer
  • Heat pump clothes dryer control method and heat pump clothes dryer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] In this embodiment, the step of interrupting the operation of the compressor is adopted. During the period of time t1 when the compressor is interrupted, the drum and the blower fan are still running, so that the air circulation is normal to bring out the moisture evaporated from the drying of the clothes.

[0048] The specific steps of the above scheme are:

[0049] a. Drying starts;

[0050] b. Detect whether the drying stage is late; if not, go to step c; if yes, go to step d;

[0051] c. Control the temperature point at which the auxiliary condensing fan starts to be T1, and the temperature point at which it stops running is T1-ΔT1, and then go to step b;

[0052] d. The compressor stops running;

[0053] e. Judging whether the stop of the compressor has reached t1, t1≥3 minutes, if so, go to step f;

[0054] f. Restart the compressor and go to step g;

[0055] g. The temperature point for controlling the opening of the auxiliary condensing fan is T2, and the te...

Embodiment 2

[0059] The difference between this embodiment and Embodiment 1 is that the step of interrupting the operation of the compressor is not adopted, and the specific steps are:

[0060] a. Drying starts;

[0061] b. Detect whether the drying stage is late; if not, go to step c; if yes, go to step d;

[0062] c. Control the temperature point at which the auxiliary condensing fan starts to be T1, and the temperature point at which it stops running is T1-ΔT1, and then go to step b;

[0063] d. Judging whether the humidity of the dried clothes is less than the set value, if the signal representing the conductivity of the clothes fed back by the humidity sensor is ≥ the set value, then go to step e, if it is judged that the humidity of the dried clothes is < the set value, then go to step f;

[0064] e. Control the temperature point at which the auxiliary condensing fan starts to be T2, and the temperature point at which it stops to operate is T2-ΔT2, and go to step d;

[0065] f. Th...

Embodiment 3

[0067] In the drying stage of the present invention, the signal representing the conductivity of the clothes detected and fed back by the humidity sensor divides the drying process into three stages: front, middle and back. The temperature point is T3-ΔT3, T1≥T3≥T2, at this time, the specific steps of the control method are:

[0068] a. Drying starts;

[0069] b. Detect whether the drying stage is in the middle stage; if not, go to step c; if yes, go to step d;

[0070] c. Control the temperature point at which the auxiliary condensing fan starts to be T1, and the temperature point at which it stops running is T1-ΔT1, and then go to step b;

[0071] d. Control the temperature point at which the auxiliary condensing fan starts to be T3, and the temperature point at which it stops running is T3-ΔT3, and go to step e;

[0072] e. Detect whether the drying stage is a late stage; if not, go to step d; if yes, go to step f;

[0073] f. The compressor stops running;

[0074] g. J...

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Abstract

The invention discloses a heat pump clothes dryer control method and a heat pump clothes dryer. The heat pump clothes dryer comprises a heat pump clothes drying system, the heat pump clothes drying system comprises a heat pump module, an auxiliary condenser and an auxiliary condensing fan, the heat pump module comprises a compressor, a main condenser, a throttling device and an evaporator, and the auxiliary condensing fan is used for cooling the surface of the auxiliary condenser and the compressor to adjust the load. The control method of the heat pump clothes dryer includes that different drying stages are divided according to the rotary drum inside humidity detected by a humidity sensor, and the auxiliary condensing fan is controlled to start and stop according to detected different temperature spots of the main condenser at each drying stage, so that the power of the compressor and the temperature of the evaporator are reduced at the later drying stage. According to the heat pump clothes dryer control method and the heat pump clothes dryer, the surface temperature of the main condenser is detected at different drying stages, so that the auxiliary condensing fan is controlled to start and stop, the power of the compressor and the temperature of the evaporator are reduced at the later drying stage, the dehumidification drying effect is improved, besides, the humidity removal is increased at the later drying stage, and the power consumption is reduced.

Description

technical field [0001] The invention relates to a clothes drying device and a clothes drying control method, in particular to a heat pump clothes dryer control method and a heat pump clothes dryer which reduce the power of a compressor and the temperature of an evaporator in the later stage of drying to increase the effect of dehumidification and drying. Background technique [0002] The following air circulation channel is arranged in the existing heat pump type clothes drying device: the heated air heated by the condenser in the heat pump cycle system is sent into the drying room containing the clothes, and the moist air which has taken moisture from the clothes is It is sent back to the evaporator for dehumidification, and the dehumidified air is heated by the condenser again and sent to the drying chamber. [0003] In the drying system of heat pump clothes dryer, the pressure that the compressor system can withstand is the saturation pressure corresponding to the tempera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F58/28D06F58/10
Inventor 许升宋华诚朱冬冬宋斌
Owner QINGDAO HAIER DRUM WASHING MACHINE
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