Heat pump clothes dryer and control method thereof

A control method and technology for clothes dryers, which are applied to household clothes dryers, washing devices, textiles, and papermaking, etc., and can solve the problems of poor efficiency and decline of clothes dryers, and constant drying efficiency of clothes dryers, etc.

Active Publication Date: 2011-05-11
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for a dryer that loads clothes in batches, the drying efficiency of the dryer does not remain constant, but gradually decreases as the drying process progresses
In other words, no matter which form of heat pump dryer architecture is adopted, there will always be situations where the efficiency of the dryer is poor

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0038] Please refer to figure 1 , which shows a schematic diagram of the heat pump clothes dryer 1000 of the first embodiment. The heat pump dryer 1000 of this embodiment includes an air supply unit 110, an exhaust unit 150, a drying chamber 120, a circulation fan 130, a switching unit 140, a control unit 210, a compression unit 310, a condenser unit 320 , an expansion unit 330 , an evaporation unit 340 , a first measurement unit 410 , a second measurement unit 420 and a third measurement unit 430 . A gas passage P1 connects the air supply unit 110 , the first measurement unit 410 , the drying chamber 120 , the second measurement unit 420 , the circulation fan 130 , the switch unit 140 and the exhaust unit 150 . A refrigerant channel P2 is connected to the compression unit 310 , the condensation unit 320 , the third measurement unit 430 , the expansion unit 330 and the evaporation unit 340 .

[0039] The air supply unit 110 is used for providing an air into the heat pump clo...

no. 2 example

[0068] Please refer to Figure 4 , which shows a schematic diagram of the heat pump clothes dryer 2000 of the second embodiment. The difference between the heat pump dryer 2000 of this embodiment and the heat pump dryer 1000 of the first embodiment is that the heat pump dryer 2000 of this embodiment uses the cooling unit 350 and the switching unit 360 to improve the overheating of the refrigerant.

[0069] The cooling unit 350 is used to dissipate the condensed refrigerant. The heat dissipation unit 350 of this embodiment may adopt a passive heat sink with natural convection as the heat dissipation mechanism, for example, a heat sink with enlarged heat dissipation fins. Alternatively, the heat dissipation unit 350 of this embodiment may also be an active heat sink with a convection fan installed and forced convection as the heat dissipation mechanism.

[0070] The switch unit 360 is used to switch the condensed refrigerant to flow through the cooling unit 350 first and then ...

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Abstract

The invention discloses a heat pump clothes dryer and a control method thereof. The control method of the heat pump clothes dryer comprises the following steps of: providing a drying cavity; controlling a gas leaving from the drying cavity to be discharged out of the heat pump clothes machine; judging whether the operation of the drying cavity accords with a preset condition or not; and if so, controlling the gas leaving from the drying cavity to return the drying cavity. In the invention, by using the switching of an opening duct and a closed duct, the energy utilization efficiency of the heat pump clothes machine is greatly improved.

Description

technical field [0001] The present invention relates to a clothes dryer and a control method for the clothes dryer, and in particular to a heat pump clothes dryer and a control method for the heat pump clothes dryer. Background technique [0002] People can dry clothes through sunlight and wind after washing clothes. However, when it rains, it is often impossible to dry the clothes smoothly, causing troubles in people's lives. [0003] The advent of clothes dryers enables people to dry clothes even in rainy days, which brings great convenience to people. However, traditional heat-exhausting clothes dryers directly discharge high-temperature and high-humidity air into the atmosphere, which not only lowers energy efficiency, but also increases environmental humidity. The heat pump clothes dryer not only achieves the goal of energy saving with excellent coefficient of performance (Coefficient of performance), but also effectively captures the moisture in the air, so that the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06F58/10D06F58/20D06F58/28
Inventor 林贵添
Owner IND TECH RES INST
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