Volute, air conditioner indoor unit and air conditioner

Abstract

The invention provides a volute, an air conditioner indoor unit and an air conditioner. The volute (2) comprises a bottom plate (3) located on one side of an air inlet direction of the volute (2), andfurther comprises at least one guide vane (4) which is arranged on the bottom plate (3) and located at an air outlet (5) of the volute (2), wherein the at least one guide vane (4) can divide air at the air outlet (5) of the volute (2) into at least two air output channels. According to the volute, airflow in the direction from a flow guide wall to the volute is distributed more evenly, namely that airflow at the air outlet flows more evenly, flowing of an outlet of a centrifugal fan is improved, the phenomenon of backflow at the volute tongue is effectively prevented and avoided, the efficiency of the fan is improved, the problems of backflow of output air and low efficiency of a centrifugal wall-mounted fan are solved, meanwhile, the problems of uneven air output and poor comfort of theair outlet of the centrifugal wall-mounted fan are solved, output airflow disturbance and friction collision are reduced, and noise is reduced.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a volute, an air conditioner indoor unit and an air conditioner. Background technique [0002] At present, the fan system of the air conditioner is mostly cross-flow fans, and there are many air outlet guide parts for the air outlet characteristics of the cross-flow fans, while the air outlet guide parts of the air conditioner for the centrifugal fan system are relatively scarce, and the air outlet of the centrifugal volute The high-pressure air flow is easy to flow back into the low-pressure volute tongue gap, which will cause eddy current loss and return loss in the volute, resulting in a decrease in the efficiency of the centrifugal fan. At the same time, it will cause discontinuous eddy current noise at the volute outlet, and the sound quality of the air conditioner is poor. Therefore, there is an urgent need for an air guide device aimed at the air outlet characteri...

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the air-conditioning indoor unit in the prior art has the phenomenon that the air outlet of the air-conditioning indoor centrifugal wall-mounted machine flows back inside the volute, resulting in low efficiency, thereby providing a volute, air-conditioning indoor machines and air conditioners

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