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Air conditioner and control method thereof

A control method and air conditioner technology, which is applied in the field of air conditioning, can solve the problems that the air conditioning system cannot realize cooling/heating switching, and achieve the effect of expanding the market scope

Inactive Publication Date: 2020-04-21
QINGDAO HAIER JIAOZHOU AIR CONDITIONER
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the one-way flow characteristics of the refrigerant in the ejector and the one-way flow characteristics of the refrigerant in the gas-liquid separator downstream of the ejector, the air conditioning system with the ejector cannot achieve cooling / heating switching, so the current application The air conditioning system of the ejector is a single cooling or single heating system that can only be used for cooling or heating

Method used

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

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Embodiment Construction

[0026] Preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention. Under the condition of not departing from the principles of the present invention, any form of change falls within the protection scope of the present invention. For example, although the air conditioner of the present invention is described with each valve in the valve assembly being an electromagnetic valve, obviously this is only an example, and those skilled in the art can make adjustments to it as required, so as to adapt to specific applications, For example, part or all of the electromagnetic valves can be replaced by electromagnetic three-way valves according to the actual situation.

[0027] It should be noted that, in the description ...

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Abstract

The invention provides an air conditioner and a control method thereof. The air conditioner comprises a compressor, an indoor heat exchanger, an outdoor heat exchanger, a gas-liquid separator, a sprayer and a valve unit, and further comprises a controller, wherein the valve unit comprises a four-way valve and a valve assembly; the valve assembly comprises a plurality of valves; the controller canswitch a communication state of the four-way valve, and enables one part of valves in the valve assembly to be in an open state for allowing a refrigerant to pass through, so that the compressor, theindoor heat exchanger, the outdoor heat exchanger, the gas-liquid separator, the sprayer, the four-way valve and the valves, in the open state, in the valve assembly can define a closed loop for enabling the air conditioner to be in a refrigerating mode or a heating mode. The air conditioner realizes switching a refrigerating function and a heating function of the air conditioner with an ejector in a mode that the controller controls the communication state of the four-way valve and the valves, in the open state, in the valve assembly.

Description

technical field [0001] The invention relates to the field of air conditioners, in particular to an air conditioner and a control method thereof. Background technique [0002] The ejector used in the air conditioning system can increase the refrigerant circulation of the system. Compared with the expansion valve, it can increase the outlet refrigerant pressure and enthalpy level, that is, the function of recovering the expansion work, so it can promote the system's performance under various working conditions. Use performance. However, due to the one-way flow characteristics of the refrigerant in the ejector and the one-way flow characteristics of the refrigerant in the gas-liquid separator downstream of the ejector, the air conditioning system with the ejector cannot achieve cooling / heating switching, so the current application The air conditioning system of the ejector is a single cooling or single heating system that can only be used for cooling or heating. [0003] As a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B13/00F25B41/04F25B49/02F25B41/20F25B41/31
CPCF25B13/00F25B49/02F25B2313/02741F25B41/20
Inventor 董旭王飞丁爽袁俊军李福生
Owner QINGDAO HAIER JIAOZHOU AIR CONDITIONER
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