Outdoor unit of air conditioner, air conditioner, and control method of air conditioner

Abstract

The invention discloses an outdoor unit of an air conditioner, the air conditioner, and a control method of the air conditioner. The outdoor unit of the air conditioner comprises a machine shell, at least one first-grade blower and at least one second-grade blower; the machine shell is provided with an air inlet and an air outlet; the first-grade blower and the second-grade blower are arranged inthe machine shell, the maximum air volume of the first-grade blower is Qmax, and the minimum air volume is Qmin; the maximum air volume of the second-grade blower is qmax, and the minimum air volume is qmin, wherein qmax is not more than Qmax, and qmin is not more than Qmin. According to the outdoor unit of the air conditioner, the air volume adjusting scale of the outdoor unit of the air conditioner can be enlarged by arranging the are arranged in the machine shell, the maximum, the cooling effect of the air conditioner under the low temperature cooling condition is guaranteed; compared withthe technical scheme of adding a low-temperature cooling cover in the prior art, the structure and the processing technique of the outdoor unit of the air conditioner are simplified, and the cost is effectively reduced; besides, the cooling and heating effects of the air conditioner under the normal temperature can be improved, and the energy efficiency of the air conditioner under the normal cooling and heating conditions can be improved.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to an outdoor unit of an air conditioner, an air conditioner and a control method for the air conditioner. Background technique [0002] Air conditioners are sometimes installed in conditions where there are a large number of heat sources indoors and the temperature is high, while the outdoor temperature is low. However, because the room has special requirements for air quality, it is not possible to directly introduce low-temperature air from the outside to cool the room, but it is necessary to turn on cooling in the room. However, the cooling of the air conditioner at a low temperature below -5°C will become unstable, and the cooling capacity will drop significantly. The situation is exacerbated when there is a large amount of air blowing against the outdoor heat exchanger. In order to reduce the negative impact of cold air blowing directly on the outdoor heat exchanger...

AI Technical Summary

Problems solved by technology

However, the sales volume of snow cover or low-temperature refrigeration cover is not very large, and the maintenance cost is also high for a large manufacturer to maintain a component with a small sales volume and a large volume. Communication, for overseas sales, it may not be possible to purchase sheet metal locally and process it directly according to the drawings. The entire low-temperature refrigeration cover or snow cover must also be shipped abroad to customers, and the cost is difficult to control.

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