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Air conditioning system with defrosting device and control method thereof

An air-conditioning system and control method technology, applied to compressors with reversible cycles, refrigerators, refrigeration components, etc., can solve the problems of indoor units that cannot be heated, and achieve the effect of reducing the possibility of frosting

Active Publication Date: 2019-11-05
GREE ELECTRIC APPLIANCES INC
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  • 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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  • Air conditioning system with defrosting device and control method thereof
  • Air conditioning system with defrosting device and control method thereof
  • Air conditioning system with defrosting device and control method thereof

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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 a heat exchanger of the indoor unit 100 and an expansion valve of the indoor unit 100; the outdoor unit 200 includes Vapor-liquid separator 201, compressor 202, outdoor unit heat exchanger 203, outdoor fan 204, heating expansion valve 205, and de...

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Abstract

The invention provides an air conditioning system with a defrosting device and a control method thereof, and relates to the technical field of air conditioners. The air conditioner solves the technical problem that an existing air source heat pump air conditioning system indoor unit does not generate heat in a defrosting mode. The air conditioning system comprises an indoor unit and an outdoor unit, wherein the outdoor unit comprises a dehumidification heating heat exchanger, the dehumidification heating heat exchanger is located in a defrosting branch, and the defrosting branch is connected with a heating main loop in parallel; and the dehumidification heating heat exchanger is located on an air circulation path between an outdoor fan and an outdoor unit heat exchanger. A part of high-temperature and high-pressure refrigerants led out of the heating main loop enters the dehumidifying heating heat exchanger in the defrosting branch to carry out dehumidification and heating on air before entering the outdoor unit heat exchanger, so that the possibility of frosting of the outdoor unit heat exchanger is greatly reduced, continuous heating is realized, and the user experience in winterheating operation is improved.

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 Applications(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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