An air purifier with a bifurcated air outlet duct

Abstract

The invention discloses an air purifier with a branched wind outlet duct, and belongs to the technical field of air purifiers. The air purifier comprises a purifier shell and a fan arranged in the inner cavity of the purifier shell, wherein a wind inlet and a wind outlet are formed in the purifier shell; an air inlet and an air outlet are formed in the fan; the air outlet in the fan is communicated with the wind outlet in the purifier shell through the wind outlet duct; the air inlet in the fan is communicated with a wind outlet in an air filter; a wind inlet in the air filter is communicated with the wind inlet in the purifier shell; the input end of the fan is connected with a power source; the wind outlet duct adopts a Y-shaped three-way pipe structure; the Y-shaped three-way pipe structure comprises a main pipe and two branch pipes; the main pipe is communicated with the air outlet in the fan; the branch pipes are communicated with the wind outlet in the purifier shell. The air purifier has the advantages that the outlet area of the forward centrifugal fan is obviously enlarged; when the rotating speed of an impeller and the wind volume are increased, air is dispersively distributed at the branched position, and thus noise is obviously weakened; meanwhile, local vortexes are obviously reduced, so that the efficiency of wind outlet is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of air purifier structures, in particular to an air purifier with a bifurcated air outlet duct. Background technique [0002] At present, most of the air purifiers using the forward-leaning impeller are volutes with a single air outlet duct. The main working principle is that the impeller rotates at a high speed driven by the motor, and the center of the impeller will generate negative pressure to inhale air, and the air passes through the blades on the impeller. Then it gradually accelerates along the inner wall of the volute in the volute, and finally flows out at the air outlet of the volute. However, the forward-inclined impeller has the following determinations in use: (1) the outlet area of ​​a single volute is small. When the impeller speed increases and the air output increases, the flow velocity of the air will increase more, and the noise will be corresponding. (2) A single volute tongue will caus...

AI Technical Summary

Problems solved by technology

The air guide structure of this structure has the following disadvantages: 1. For a purifier with a large air volume and a large height, because the overall height of the fuselage is high, the air outlet is close to the ceiling of the room, and the direct air supply from the grille will cause the air to flow from the purifier. Blow to the ceiling at a vertical or near-vertical angle after coming out

This will cause poor air supply, which is not conducive to the effective circulation of air in the room, will reduce the purification effect, and direct blowing to the ceiling will generate additional noise, and the part of the ceiling that is blown directly will turn black after long-term use.

2. When the purifier is not in use, the air duct is easy to fall into dust, and when it is used again, the internal dust is blown out to cause secondary pollution

For the emergence of the above problems, the prior art does not solve it well, which brings troubles to the normal work in this field

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