An air conditioner and its constant temperature dehumidification control method

Abstract

The invention discloses an air conditioner and a constant-temperature dehumidification control method thereof and relates to the technical field of air conditioner dehumidification. The air conditioner and the constant-temperature dehumidification control method thereof aim at solving the problems that in the prior art, air conditioners capable of achieving constant-temperature dehumidification are complex in structure and high in production cost. The air conditioner comprises a refrigeration and heating system, wherein the refrigeration and heating system is composed of a compressor, an outdoor heat exchanger, an indoor heat exchanger, a four-way valve, an indoor fan and an outdoor fan; the air conditioner further comprises an indoor temperature sensor, an indoor humidity sensor and a control unit; the control unit is electrically connected with the indoor temperature sensor, the indoor humidity sensor, the four-way valve and the compressor; and the reversing state of the four-way valve and the operation frequency of the compressor can be controlled through the control unit. The air conditioner can be used for achieving indoor constant-temperature dehumidification.

Description

technical field [0001] The invention relates to the technical field of air conditioner dehumidification, in particular to an air conditioner and a constant temperature dehumidification control method thereof. Background technique [0002] Under normal circumstances, the air conditioner must also be cooling during the dehumidification operation process. Therefore, when the indoor temperature is high, the dehumidification operation of the air conditioner can realize cooling and dehumidification at the same time, but when the indoor temperature is low, if the air conditioner is dehumidified again, it will cause a further decrease in the indoor temperature, thus making the user feel cold . In order to avoid the above problems, there is an urgent need for an air conditioner system and control method capable of achieving constant temperature dehumidification. [0003] At present, an air conditioner system capable of achieving constant temperature dehumidification in the prior ar...

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Problems solved by technology

[0004] However, the above-mentioned air conditioner system that can achieve constant temperature dehumidification needs to add a dehumidification valve on the indoor heat exchanger, and the design of the flow path in the indoor heat exchanger is relatively complicated, and the production cost is relatively high. The dehumidification valve is connected, resulting in harmful pressure loss, which reduces the overall performance of the air conditioner. Therefore, it is difficult to carry out extensive promotion and application

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