Air purifier

Abstract

The present disclosure relates to an air purifier. The air purifier of the present disclosure includes: a body having an inlet formed on an circumferential surface thereof and an outlet formed on an upper surface thereof; and a booster disposed at an upper side of the body and switching a flow direction of air which flows through the outlet. The body includes an inlet cover disposed on a circumferential surface and having the inlet, an outlet cover disposed on an upper surface and having the outlet, an upper cover disposed at an upper side of the inlet cover, and having the outlet cover disposed at an upper end portion, a blowing device disposed inside the inlet cover or the upper cover, and forming air flowing from the inlet to the outlet, and a booster coupler disposed at an upper side of the blowing device and coupled to the booster. An outer peripheral end of the outlet cover is seated on an upper side of the upper cover and an inner peripheral end is coupled to the booster coupler.

What is claimed is: 
     
         1 . An air purifier comprising:
 a body having an inlet formed on an circumferential surface thereof and an outlet formed on an upper surface thereof; and   a booster disposed on the body and switching a flow direction of air which flows through the outlet,   wherein the body includes:   an inlet cover disposed on a circumferential surface and having the inlet;   an outlet cover disposed on an upper surface and having the outlet the outlet cover disposed above the inlet cover;   an upper cover disposed between the outlet cover and the inlet cover;   a blowing device disposed inside the inlet cover or the upper cover, and forming air flowing from the inlet to the outlet; and   a booster coupler disposed at an upper side of the blowing device and coupled to the booster, and   wherein an outer peripheral end of the outlet cover is seated on an upper side of the upper cover and an inner peripheral end of the outlet cover is coupled to the booster coupler.   
     
     
         2 . The air purifier of  claim 1 , wherein the outlet cover includes a cover hook inserted into the booster coupler. 
     
     
         3 . The air purifier of  claim 2 , wherein the booster coupler includes a hook hole into which the cover hook is inserted, and
 wherein the hook hole is extended in a circumferential direction, and a width of the hook hole changed according to its circumferential a position.   
     
     
         4 . The air purifier of  claim 3 , wherein the hook hole includes a first hook hole into which the cover hook is inserted, and a second hook hole extended from the first hook hole and limiting upward movement of the cover hook. 
     
     
         5 . The air purifier of  claim 1 , wherein the outlet cover includes
 a plurality of outlet grills extended radially,   an outlet cover rim connecting an outer peripheral end of each of the plurality of outlet grills, and seated on the upper side of the upper cover, and   an inner cover rim connecting an inner peripheral end of the plurality of outer grills, and coupled to the booster coupler.   
     
     
         6 . The air purifier of  claim 5 , wherein each of the plurality of outer grills has a form of being inclined downward toward the inner cover rim from the outer cover rim. 
     
     
         7 . The air purifier of  claim 5 , wherein a fastening portion fastened to the booster coupler is disposed in at least some of the plurality of outlet grills. 
     
     
         8 . The air purifier of  claim 7 , wherein when the booster is coupled to the booster coupler, the fastening portion is disposed at a lower side of the booster. 
     
     
         9 . The air purifier of  claim 7 , wherein a hook hole into which the cover hook of the outlet cover is inserted is formed in the booster coupler, and
 wherein the fastening portion is disposed outside a radial direction of the hook hole.   
     
     
         10 . The air purifier of  claim 5 , wherein an upper step protrudes form an upper end portion of an outer peripheral end of the outer cover rim, and
 wherein the upper step is seated on an upper end portion of the upper cover.   
     
     
         11 . The air purifier of  claim 10 , wherein the upper cover includes an internal step which protrudes inward so that the upper step is seated. 
     
     
         12 . The air purifier of  claim 5 , wherein the outlet cover includes a plurality of cover hooks which protrude to a lower side of the inner cover rim, and
 the plurality of cover hooks are disposed to be spaced apart from each other in the circumferential direction.   
     
     
         13 . The air purifier of  claim 12 , wherein each of the plurality of cover hooks includes a hook protrusion which protrudes outward in the radial direction on a lower end portion thereof. 
     
     
         14 . The air purifier of  claim 1 , wherein the booster coupler includes:
 a rotating body which changes a direction faced by the booster to the circumferential direction; and   a support body forming a space where the rotating body is disposed, and
 wherein the outlet cover is coupled to the support body. 
   
     
     
         15 . The air purifier of  claim 14 , wherein a rotary motor fixedly disposed in the rotating body and a rotary gear which rotates by the rotary motor are disposed at an inner side of the rotating body, and
 wherein a rack engaging with the rotary gear is disposed on an inner peripheral surface of the support body.   
     
     
         16 . The air purifier of  claim 15 , wherein the rotating body includes a corresponding terminal electrically connected to the booster, and
 wherein the rack is disposed in an opposite direction to the corresponding terminal based on a rotary center of the rotating body.   
     
     
         17 . The air purifier of  claim 1 , wherein the booster coupler couples or decouples the booster according to placement.