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Air conditioner and control method thereof

A control method and technology for air conditioners, which are applied in heating and ventilation control systems, refrigerators, refrigeration components, etc., can solve the problems of increased thermal resistance and wind resistance of heat exchangers, blocked drains, and inability to discharge defrosted water. The effect of improving stability

Inactive Publication Date: 2018-05-08
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the heat pump air conditioner is running, when the outdoor ambient temperature is low, especially when it snows, the condensed water of the outdoor unit is easy to freeze into ice on the chassis, and gradually block the drain outlet, resulting in the failure of the defrosted water to discharge
With the progress of defrosting and freezing, the ice layer gradually thickens until it spreads to the bottom of the heat exchanger, causing the thermal resistance and wind resistance of the heat exchanger to increase, causing a serious decline in the heating performance of the unit

Method used

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  • Air conditioner and control method thereof
  • Air conditioner and control method thereof
  • Air conditioner and control method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] like figure 1 As shown, the air conditioner 100 includes: a compressor 10 , a reversing valve group 20 , an outdoor heat exchanger 30 , an indoor heat exchanger 40 , a chassis 50 , a heating branch 60 and an oil separator 70 .

[0086] Among them, such as figure 1 As shown, the compressor 10 has an exhaust port 110 and an air return port 120, the reversing valve group 20 has a first valve port 210, a second valve port 220, a third valve port 230 and a fourth valve port 240, the first valve port 210 communicates with the exhaust port 110, the fourth valve port 240 communicates with the return air port 120, one end of the outdoor heat exchanger 30 communicates with the second valve port 220, one end of the indoor heat exchanger 40 communicates with the other end of the outdoor heat exchanger 30 The other end of the indoor heat exchanger 40 communicates with the third valve port 230 .

[0087] The oil separator 70 has an air inlet, a gas outlet and a liquid outlet, the a...

Embodiment 2

[0097] like figure 2 As shown, the difference from Embodiment 1 is that in this embodiment, one end of the refrigerant pipe 610 communicates with the exhaust port 110, the other end of the refrigerant pipe 610 communicates with one end of the on-off element 620, and the other end of the on-off element 620 One end communicates with the air return port 120 . As a result, the variety of designs of the heating branch 60 can be increased.

Embodiment 3

[0099] like Figure 5 and Image 6 As shown, the difference from the first embodiment is that in this embodiment, the refrigerant pipes 610 of the heating branch 60 pass through the drain holes 510 of the chassis 50 in sequence. Thus, the high-temperature refrigerant in the refrigerant pipe 610 can heat the drain hole 510, preventing the condensed water from solidifying and freezing at the drain hole 510 to block the drain hole 510 and affect the drainage efficiency of the chassis 50, and even affect the exchange rate of the outdoor heat exchanger 30. The heat effect effectively improves the running stability of the air conditioner 100 .

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Abstract

The invention discloses an air conditioner and a control method thereof. The air conditioner comprises a compressor, a reversing valve set, an outdoor heat exchanger, indoor heat exchangers, a bottomplate and a heating branch. The compressor comprises an exhaust port and a gas return port. The reversing valve set comprises a first valve port, a second valve port, a third valve port and a fourth valve port. The first valve port communicates with the exhaust port. The fourth valve port communicates with the gas return port. Water drainage holes are formed in the portion, below the outdoor heatexchanger, of the bottom plate so that condensate water generated by the outdoor heat exchanger can be drained. The heating branch is arranged on the bottom plate. One end of the heating branch is connected between the exhaust port and the first valve port, and the other end of the heating branch is connected between the gas return port and the fourth valve port. According to the air conditioner,the bottom plate can be heated through high-temperature refrigerant flowing out from the compressor, the heat exchange effect of the outdoor heat exchanger can be prevented from being influenced by freezing of the bottom plate, and stability of operation of the air conditioner is improved.

Description

technical field [0001] The present invention relates to the technical field of electrical appliances, in particular, to an air conditioner and a control method thereof. Background technique [0002] When the heat pump air conditioner is running, when the outdoor ambient temperature is low, especially when it snows, the condensed water of the outdoor unit is easy to freeze into ice on the chassis, and gradually block the drain port, so that the defrost water cannot be discharged. With the progress of defrosting and freezing, the ice layer gradually thickens until it spreads to the bottom of the heat exchanger, causing the thermal resistance and wind resistance of the heat exchanger to increase, resulting in a serious decline in the heating performance of the unit. SUMMARY OF THE INVENTION [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an air conditioner, which has th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F11/89F24F11/64F25B13/00F25B43/00F25B47/02F24F110/12
CPCF25B13/00F25B43/00F25B47/02
Inventor 王命仁杨坤
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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