Air conditioner with variable air ducts and control method
An air conditioner and air duct technology, which is applied in the field of air conditioner and control with variable air duct, can solve the problem of easy frosting in the final stage heat exchanger, achieve the effect of ensuring the cooling effect and solving the frosting effect
Active Publication Date: 2021-03-09
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology
[0005] The invention discloses an air conditioner with a variable air duct and a control method, which solves the problem that the final stage heat exchanger is prone to frosting
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[0019] The present invention will be further described below in conjunction with the embodiments, but not limited to the contents in the description.
[0020] like figure 1 and figure 2 As shown, the present invention discloses an air conditioner, comprising a heat exchange air duct 10, a heat exchanger, a first reversing air duct 30, a second reversing air duct 40, a first control valve 61 and a second control valve 62, The heat exchange air duct 10 has an air inlet 11 and an air outlet 12; the heat exchanger is located in the heat exchange air duct 10, and the heat exchanger includes: an intermediate heat exchanger 22 and a final heat exchanger 23, and an intermediate heat exchanger 22 and an end heat exchanger. The stage heat exchangers 23 are arranged at intervals along the direction from the air inlet 11 to the air outlet 12; Between the heat exchangers 22, the outlet of the first reversing air duct 30 is located between the last-stage heat exchanger 23 and the air out...
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The invention discloses an air conditioner with variable air ducts and a control method. The air conditioner comprises a heat exchange air duct, an intermediate heat exchanger, a final-stage heat exchanger, the first reversing air duct, the second reversing air duct, a first control valve and a second control valve; the intermediate heat exchanger and the final-stage heat exchanger are arranged ina spaced manner; and the first reversing air duct and the second reversing air duct are both communicated with the heat exchange air duct. According to the air conditioner, the reversing air ducts are matched with the control valves, so that a path of airflow can be changed, the heat exchange sequence of the airflow is switched from heat exchange with the intermediate heat exchanger firstly and then heat exchange with the final-stage heat exchanger to heat exchange with the final-stage heat exchanger firstly and then heat exchange with the intermediate heat exchanger, and the final-stage heatexchanger is defrosted by utilizing the airflow with higher temperature, so that the frosting problem of the final-stage heat exchanger is solved, and the refrigerating effect of the system is guaranteed.
Description
technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner with variable air ducts and a control method. Background technique [0002] Defrosting is a common problem in refrigeration systems. For heat pump systems, the most common defrosting method in the industry is to reverse the direction of the four-way valve to change the flow direction of the refrigerant, so that the high-temperature refrigerant can pass through the frosted heat exchanger to achieve the defrosting effect. This method will cause the problem that the temperature of the outlet air on the user side fluctuates greatly. [0003] For a multi-line system, multiple heat exchangers can be used to defrost one by one to reduce temperature fluctuations, but this method has great limitations, and it can only be realized when multiple heat exchangers are used in parallel in the system. [0004] For aircraft ground air conditioners, the industry standa...
Claims
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IPC IPC(8): F24F13/06F24F11/72F24F11/41F24F13/30
CPCF24F13/06F24F11/72F24F11/41F24F13/30
Inventor 卓明胜周进陈培生于宗伟张冠文
Owner GREE ELECTRIC APPLIANCES INC