An air conditioner indoor unit

Abstract

The embodiment of the invention provides an air conditioner indoor unit and relates to the technical field of air conditioners. The air conditioner indoor unit can prevent a cross-flow fan from producing resonance noise, thereby lowering the noise of the air conditioner indoor unit. The air conditioner indoor unit comprises a housing, wherein an air inlet and an air outlet are formed in the housing, an air passage is arranged in the housing, a heat exchanger and the cross-flow fan are arranged in the air passage, a plurality of worm gears are arranged in a position, keeping a minimum distance from the outer edge of the cross-flow fan, on the inner surface of the housing, the worm gears are distributed in the axial direction of the cross-flow fan, and a clearance is reserved between two adjacent worm gears. The air conditioner indoor unit provided by the invention can be used for air conditioners.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner indoor unit. Background technique [0002] Along with improving constantly of people's living standard, the use of air conditioner in common family is more and more extensive. The embedded air conditioner installed in the ceiling is more and more favored by domestic air conditioner consumers because it does not occupy room space after installation. [0003] In the prior art, only ultra-thin air conditioners can only be installed due to the limitation of the ceiling height of the home environment. However, the thinning of the product will make the inclination angle of the heat exchanger smaller, which in turn requires a longer water tray at the bottom of the heat exchanger, which will cause the air inlet of the air conditioner to become smaller, thereby causing the heat exchange of the heat exchanger to become smaller. Reduced efficiency and increased...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, due to the limitation of the ceiling height of the home environment, only ultra-thin air conditioners can be installed

However, the thinning of the product will make the inclination angle of the heat exchanger smaller, which in turn requires a longer water tray at the bottom of the heat exchanger, which will cause the air inlet of the air conditioner to become smaller, thereby causing the heat exchange of the heat exchanger to become smaller. Reduced efficiency and increased air intake resistance lead to a decrease in fan efficiency, which in turn results in greater fan noise

Since the inner surface of the casing of the air conditioner in the prior art is generally smooth, in the direction parallel to the axial direction of the fan, the size of the gap between the inner surface of the casing and the outer edge of the fan tends to be consistent, so that the noise emitted by the fan In the same frequency, the noise of the same frequency may be superimposed on a large scale to generate resonance noise, which makes the noise problem of the indoor unit of the air conditioner more serious.

Images