Indoor unit of air conditioner, air conditioner and defrosting control manner of air conditioner

An air-conditioning indoor unit and control method technology, applied in heating methods, air-conditioning systems, mechanical equipment, etc., can solve the problems of poor indoor comfort and large temperature drop in indoor human activity areas, so as to improve human comfort and reduce hot air Floating effect, effect of shortening defrosting time

Active Publication Date: 2020-09-22
GREE ELECTRIC APPLIANCES INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects that the air conditioner in the prior art has a large temperature drop in the indoor human activity area and poor indoor comfort during defrosting, thereby providing an air conditioner that can reduce the temperature of the human activity area. Air-conditioning indoor unit, air conditioner and its defrosting control method to improve indoor comfort

Method used

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  • Indoor unit of air conditioner, air conditioner and defrosting control manner of air conditioner
  • Indoor unit of air conditioner, air conditioner and defrosting control manner of air conditioner
  • Indoor unit of air conditioner, air conditioner and defrosting control manner of air conditioner

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Experimental program
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Effect test

Embodiment 1

[0061] Such as Figure 1-4 As shown, an air conditioner indoor unit of the present invention includes:

[0062] Upper Exit 10;

[0063] Lower air outlet 15;

[0064] The indoor heat exchange device includes two indoor heat exchangers connected in series up and down, including a first indoor heat exchanger 7 and a second indoor heat exchanger 8 from top to bottom;

[0065] A set of parallel pipeline assembly is provided, which includes a communication pipeline and a first valve 5 arranged on the communication pipeline, the parallel pipeline assembly is connected in parallel with the first indoor heat exchanger 7, and the air conditioner is in In the defrosting mode, the first valve 5 is in an open state. Preferably, the first valve 5 is a solenoid valve, which is convenient for realizing control.

[0066] The first valve 5 is in the open state in the defrosting mode, which can increase the amount and temperature of the refrigerant passing through the second indoor heat exch...

Embodiment 2

[0073] Such as Figure 5-7 As shown, on the basis of embodiment 1, this embodiment 2 further includes a second valve 6, the second valve 6 and the first indoor heat exchanger 7 constitute the heat exchanger pipeline assembly, and the The second valve 6 is located below the first indoor heat exchanger 7 . Preferably the second valve 6 is a solenoid valve.

[0074] Such as Figure 5-7 As shown, when the air conditioner is in normal cooling operation, the first valve 5 is closed, the second valve 6 is opened, and the refrigerant passes through the compressor exhaust port-outdoor heat exchanger-expansion valve-second indoor heat exchanger-second valve 6 - 1st indoor heat exchanger - compressor inlet for circulation such as Figure 5 shown. During normal heating operation, the first valve 5 is closed, the second valve 6 is opened, and the refrigerant passes through the exhaust port of the compressor-the first indoor heat exchanger-the second valve 6-the second indoor heat excha...

Embodiment 3

[0077] Such as Figure 8 As shown, the air conditioner indoor unit of the present invention includes an upper outlet 10, a lower air outlet 15, and a first indoor heat exchanger 7, a second indoor heat exchanger 8, and a third indoor heat exchanger 9 arranged in sequence from top to bottom , where the air outlet side of the first indoor heat exchanger 7 is provided with a corresponding first fan 11 and a first heating structure 12; the outlet side of the second indoor heat exchanger 8 is provided with a corresponding second fan 13 and a second Heating structure 14; a corresponding third fan 16 and a third heating structure 17 are provided on the air outlet side of the third indoor heat exchanger 9 . The first heating structure 12, the second heating structure 14, and the third heating structure 17 are individually controlled. The first fan 11, the second fan 13, and the third fan 16 are individually controlled. In this way, when the air conditioner is running in the defrosti...

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Abstract

The invention discloses an indoor unit of an air conditioner, the air conditioner and a defrosting control manner of the air conditioner. The indoor unit of the air conditioner comprises an air outlet, an indoor heat exchange device and at least one parallel pipeline assembly, wherein the air outlet at least comprises a lower air outlet, the indoor heat exchange device comprises at least two indoor heat exchangers which are vertically connected in series, the parallel pipeline assembly comprises communicating pipeline and a first valve arranged on the communicating pipeline, and the parallel pipeline assembly is connected with a heat exchanger pipeline assembly formed by at least one indoor heat exchanger located in front of the bottommost indoor heat exchanger in parallel. When the air conditioner is in the defrosting mode, the first valve is in the opened state. When the air conditioner conducts defrosting, heat supply is continuous, the temperature drop in the movement area of a human body can be reduced, and the comfort on the indoor side is improved.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to an air conditioner indoor unit, an air conditioner and a defrosting control method thereof. Background technique [0002] When the heat pump air conditioner is used in a low-temperature and high-humidity area, when it is running in the heating mode, the outdoor heat exchanger is prone to frost, which requires periodic defrosting. Due to the frequent operation of frosting and defrosting, the heat output is discontinuous, resulting in poor comfort of heating and defrosting. [0003] The prior art discloses an air conditioner with an air outlet at the lower part and a defrosting method for the air conditioner. The air conditioner includes an upper air outlet and a lower air outlet, and the upper and lower air outlets are all provided with independent air deflectors, blowers and electric heaters. According to the defrosting conditions and the operating status of each load before def...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24F1/0007F24F1/0059F24F1/0014F24F13/30F24F11/89F24F11/42F24F11/83F24F11/64F24F11/70
CPCF24F1/0007F24F1/0014F24F1/0059F24F13/30F24F2221/34F24F11/42F24F11/64F24F11/70F24F11/83F24F11/89
Inventor 陈姣何振健邹云辉秦晓柯林金煌冯青龙
Owner GREE ELECTRIC APPLIANCES INC
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