Dehumidifying method for air conditioner and air conditioner

Abstract

The invention provides a dehumidifying method for an air conditioner. A first indoor heat exchanger and a second indoor heat exchanger are arranged front and back along an air flowing direction and asecond electronic expansion valve is arranged therebetween. The dehumidifying method comprises the steps of S11, starting a dehumidifying mode in a refrigerating mode and setting a set temperature; S12, comparing the set temperature Ts with an indoor environment temperature Tr; when Ts is equal to Tr, carrying out constant temperature dehumidification and executing S13; when Ts is greater than Tr,carrying out temperature-rising dehumidification and executing S14; S13, stopping the air conditioner when the frequency of a compressor becomes Ahz and an outdoor fan is delayed for Bs, fully opening a first electromagnetic valve and executing S15; S14, when the frequency of the compressor becomes Ahz, adjusting the outdoor fan to a preset low shift, fully opening a first electromagnetic valve and executing S15; and S15, electrifying a reversing device to change the flowing direction of a refrigerant, and adjusting the frequency of the compressor and the aperture of the second electromagnetic valve according to a difference value between the set temperature and an air outlet temperature. The invention further provides the air conditioner. Inlet air becomes cool air with low humidity first and then is heated to become hot air, so that a condition that the cold and hot air are not uniformly mixed can be avoided, and more reasonable constant-temperature and temperature-rising dehumidification is carried out.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, in particular to an air conditioner dehumidification method and the air conditioner. Background technique [0002] In the current industry, the dehumidification of air conditioners is generally carried out in cooling mode. When the indoor temperature is low, if the air conditioner continues to dehumidify, the indoor temperature will be further reduced, making users feel cold and affecting user experience. In order to solve For the above problems, it is necessary to design an air conditioner capable of constant temperature dehumidification and heating dehumidification. At present, in order to achieve the purpose of constant temperature dehumidification, the heat exchanger of the air conditioner is usually designed as a semi-circular shape and is mainly used on the hanging machine, or designed as a V shape and is mainly used on the cabinet machine. A part of the heat exchanger is used as a...

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Problems solved by technology

[0002] In the current industry, the dehumidification of air conditioners is generally carried out in cooling mode. When the indoor temperature is low, if the air conditioner continues to dehumidify, the indoor temperature will be further reduced, making users feel cold and affecting user experience. In order to solve For the above problems, it is necessary to design an air conditioner capable of constant temperature dehumidification and heating dehumidification

At present, in order to achieve the purpose of constant temperature dehumidification, the heat exchanger of the air conditioner is usually designed as a semi-circular shape and is mainly used on the hanging machine, or designed as a V shape and is mainly used on the cabinet machine. A part of the heat exchanger is used as an evaporator for dehumidification. The other part is directly connected with the outdoor heat exchanger to flow through the high-temperature and high-pressure refrigerant, so that the air flowing through the indoor heat exchanger is partially heated in the indoor air duct, and the other part is cooled, and after mixing, it is blown out from the indoor air outlet; but In this method, the connection method of the indoor heat exchanger is complicated, and the mixing of hot and cold air is uneven, which affects the user experience, and the applicable range of this method is narrow

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