An air purifier with a conical air intake grille

Abstract

The invention discloses an air purifier with conical air inlet grids. The air purifier comprises a shell, a double-suction type centrifugal fan and a filter assembly. The double-suction type centrifugal fan comprises air channel frames with certain internal space and a double-suction type impeller arranged in the air channel frames, and the filter assembly is mounted between the double-suction type centrifugal fan and the shell. The air channel frames comprise air channel wall plates and air channel base plates with air inlets, and the air inlets of the air channel base plates are covered with the inwards-concave conical air inlet grids. A plurality of air inlet holes which are distributed in the radial direction at equal intervals in an annular array mode and gradually enlarged along with the enlargement of the radius are formed in the conical faces of the conical air inlet grids. A certain intersection angle alpha is formed between the conical face generatrix of the conical air inlet grids and the plane of the air channel base plates. The air purifier has the beneficial effects that the air purification efficiency of the air purifier is improved, and meanwhile the running noise of the air purifier can be lowered.

Description

technical field [0001] The present invention relates to an air purifier, more particularly, to an air purifier with a conical air inlet grille. Background technique [0002] At present, air purifiers on the market can be divided into single-suction air purifiers and double-suction air purifiers according to different suction methods. Compared with traditional single-suction air purifiers, double-suction air purifiers have advanced The air volume is large, the ability to purify more air per unit time, and the air purification efficiency is relatively high. [0003] Such as figure 1 and figure 2 The shown Chinese patent application number is 201410163365.6, a double-sided filter air intake air purifier with a large filter screen wind area, including a motor wind wheel, an air duct (30), a front casing (40), and a rear casing ( 50) and top cover (60), the air duct (30) is provided with a cavity (30a) for accommodating the motor wind wheel and an air outlet (30b) for air to ...

AI Technical Summary

Problems solved by technology

[0004] Although the above technical solution solves the problem of small air intake and low purification efficiency of traditional single-suction air purifiers by means of double-sided air intake, the double-sided filtered air intake air purifier does not take into account the optimization of the air intake grille. It is designed to increase the air intake rate, thereby increasing the air intake volume. It uses a flat air intake grille, which has certain limitations.

Images