An air-conditioning system with a defrosting device and its control method

An air-conditioning system and control method technology, applied in the direction of reversible cycle compressors, refrigerators, refrigeration components, etc., can solve the problems of indoor units that cannot be heated

Active Publication Date: 2020-10-23
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The object of the present invention is to provide an air-conditioning system with a defrosting device and its control method to solve the technical problem in the prior art that the indoor unit cannot heat in the defrosting mode of the air-source heat pump air-conditioning system

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  • An air-conditioning system with a defrosting device and its control method
  • An air-conditioning system with a defrosting device and its control method
  • An air-conditioning system with a defrosting device and its control method

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Embodiment Construction

[0030] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other implementations obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0031] Such as Figure 2-Figure 4 As shown, the present invention provides an air conditioning system with a defrosting device, including an indoor unit 100 and an outdoor unit 200, wherein the indoor unit 100 includes an indoor unit 100 heat exchanger and an indoor unit 100 expansion valve; the outdoor unit 200 includes Vapor-liquid separator 201, compressor 202, outdoor unit heat exchanger 203, outdoor fan 204, heating expansion valve 205, and dehumidificatio...

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Abstract

The invention provides an air conditioning system with a defrosting device and a control method thereof, relates to the technical field of air conditioning, and solves the technical problem that the indoor unit cannot heat in the defrosting mode of the existing air source heat pump air conditioning system. The air conditioning system includes an indoor unit and an outdoor unit. The outdoor unit includes a dehumidification and heating heat exchanger. On the air circulation path between the heat exchangers of the outdoor unit. Part of the high-temperature and high-pressure refrigerant is drawn from the heating main circuit into the dehumidification and heating heat exchanger in the defrosting branch circuit to dehumidify and heat the air before entering the outdoor unit heat exchanger, which greatly reduces the possibility of frosting on the outdoor unit heat exchanger performance, realize continuous heating, and improve user experience under heating operation in winter.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to an air conditioning system with a defrosting device and a control method thereof. Background technique [0002] A heat pump is an energy-saving device that uses high-level energy to make heat flow from a low-level heat source to a high-level heat source. The air source heat pump uses air as the low-level heat source of the heat pump, which is inexhaustible and inexhaustible. Moreover, the installation and use of the air source heat pump are relatively convenient, so it has been widely used. [0003] The applicant finds that the prior art has at least the following technical problems: [0004] The outdoor unit of the air source heat pump air conditioner has the problem of frosting and defrosting of the outdoor heat exchanger during heating. At present, the general solution is to switch the operation mode of the air conditioner, switch from heating to cooling mode, and ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B13/00F25B41/04F25B47/02F25B49/02F25B41/20
CPCF25B13/00F25B47/022F25B49/02F25B2313/02741F25B41/20
Inventor 黄业祥冯涛曹朋
Owner GREE ELECTRIC APPLIANCES INC
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