Flow guiding ring, air flue structure, indoor unit and air conditioner

Abstract

The embodiment of the invention discloses a flow guiding ring, an air flue structure, an indoor unit and an air conditioner. The flow guiding ring comprises a connection part and a flow guiding part. The flow guiding part comprises a circular-arc section forming an annular structure, and a shielding section connected with the circular-arc section. The longitudinal section of the portion, opposite to the shielding section, of the connection part is larger than that of the portion, opposite to the circular-arc section, of the connection part. During using, the flow guiding ring is installed on a volute, so that the shielding section is opposite to a volute tongue. Due to the fact that the longitudinal section of the portion, opposite to the shielding section, of the connection part is larger than that of the portion, opposite to the circular-arc section, of the connection part, the covering area of an air inlet is increased compared with the prior art. In the reverse backflow process of airflow, a path for the airflow to go into and out repeatedly is cut off under the blocking action of the connection part, and accordingly, generating of surge noise and wave wind is restrained.

Description

technical field [0001] The invention relates to the technical field of air conditioning, and more specifically, to a guide ring, an air duct structure, an indoor unit and an air conditioner. Background technique [0002] In the air duct of a conventional centrifugal cabinet machine, the static pressure value at the volute tongue of the volute is the largest, and the airflow is often forced to flow in the opposite direction and overflow from the guide ring. The air inlet of the conventional guide ring is a circular structure, such as figure 1 As shown, the shielding area of ​​the diversion ring corresponding to the volute tongue of the volute is insufficient, causing the airflow to easily overflow. With the rotation of the fan blade, the airflow is sucked in again. Repeatedly, it is easy to generate surge noise, and at the same time, the air conditioner will be generated. The wind out of the air outlet fluctuates greatly, and the airflow beats out one by one, forming a wave ...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the technical problem to be solved by the present invention is how to suppress the surge noise and wave wind. Therefore, the present invention provides a flow guide ring, an air duct structure, an indoor unit and an air conditioner

Images