Flow generator

Abstract

A flow generator according to an embodiment of the present invention includes: a fan configured to generate a first air flow and a second air flow, which flow to close to each other in a vertical direction; a fan housing configured to accommodate the fan; a cover disposed to surround the fan and the fan housing; and a catch device configured to guide selective coupling between the cover and the fan housing, wherein the catch device perform a first operation to restrict or release the cover and the fan housing in a circumferential direction and perform a second operation to restrict or release the cover and the fan housing in the vertical direction.

1 . A flow generator comprising:
 a fan configured to generate a first air flow and a second air flow, which flow to close to each other in a vertical direction;   a fan housing configured to accommodate the fan;   a cover disposed to surround the fan and the fan housing; and   a catch device configured to guide selective coupling between the cover and the fan housing,   wherein the catch device perform a first operation to restrict or release the cover and the fan housing in a circumferential direction and perform a second operation to restrict or release the cover and the fan housing in the vertical direction.   
     
     
         2 . The flow generator according to  claim 1 , wherein the catch device comprises:
 a first catch device configured to guide the first operation; and   a second catch device configured to guide the second operation.   
     
     
         3 . The flow generator according to  claim 2 , wherein the first catch device comprises:
 a latch accommodation part provided in the cover;   a first latch inserted into the latch accommodation part; and   a second latch movably coupled to the fan housing.   
     
     
         4 . The flow generator according to  claim 3 , wherein the second latch vertically moves to be restricted to or released from the latch accommodation part. 
     
     
         5 . The flow generator according to  claim 3 , wherein the first catch device further comprises a catch protrusion protruding from the latch accommodation part. 
     
     
         6 . The flow generator according to  claim 5 , wherein the first operation comprises:
 a first catch operation through which the second latch and the catch protrusion are caught with each other; and   a first release operation through which the caught state between the second latch and the catch protrusion is released.   
     
     
         7 . The flow generator according to  claim 2 , wherein the second catch device comprises:
 a hook disposed to protrude from one surface of the fan housing; and   a hook coupling part disposed on the cover and having a shape corresponding to the hook.   
     
     
         8 . The flow generator according to  claim 7 , wherein the hook has a shape that is bent in one direction. 
     
     
         9 . The flow generator according to  claim 7 , wherein the hook and the hook coupling part are inserted by sliding at least one of the cover or the fan housing in the circumferential direction. 
     
     
         10 . The flow generator according to  claim 7 , wherein the second operation comprises:
 a second catch operation through the hook coupling part is inserted into the hook; and   a second release operation through which the hook coupling part is away from the hook.   
     
     
         11 . The flow generator according to  claim 7 , wherein the fan comprises an upper fan configured to guide the first air flow and a lower fan configured to guide the second air flow,
 the fan housing comprises an upper fan housing configured to guide the first air flow and a lower fan housing configured to guide the second air flow, and   the cover comprises an upper cover configured to guide the first air flow and a lower cover configured to guide the second air flow.   
     
     
         12 . The flow generator according to  claim 11 , wherein the catch device comprises:
 an upper catch device configured to restrict or release the upper cover and the upper fan housing; and   a lower catch device configured to restrict or release the lower cover and the lower fan housing.   
     
     
         13 . The flow generator according to  claim 1 , wherein the catch device comprises a contact part at which electrical disconnection is performed according to the restriction or release between the cover and the fan housing. 
     
     
         14 . A method for separating a flow generator comprising: a first module comprising an upper cover; a second module coupled to the first module and comprising a fan and a fan housing accommodating the fan; and a third module coupled to the second module and comprising a base placed on the ground, a leg extending from the base, and a lower cover coupled to the leg, the method comprising:
 a first separation separating the first module from the second module; and   a second separation separating the second module from the third module,   wherein, in the first separation and the second separation, a first catch device restricting the modules in a circumferential direction is pressed in a vertical direction to release the restriction of the modules, and   a second catch device restricting the modules in the vertical direction rotates to release the restriction of the modules.   
     
     
         15 . The method according to  claim 14 , wherein the first separation comprises:
 pressing the first catch device to release the restriction between the upper cover and the upper fan housing in the circumferential direction; and   rotating the upper cover in the circumferential direction to release the restriction of the vertical direction between the upper cover and the upper fan housing.   
     
     
         16 . The method according to  claim 15 , wherein the upper cover is separated upward to expose the upper fan and the upper fan housing to the outside. 
     
     
         17 . The method according to  claim 14 , wherein the second separation comprises:
 pressing the first catch device to release the restriction between the lower cover and the lower fan housing in the circumferential direction.   
     
     
         18 . The method according to  claim 17 , wherein a direction in which the first catch device is pressed in the first separation is opposite to a direction in which the first catch device is pressed in the second separation. 
     
     
         19 . The method according to  claim 17 , wherein the second separation further comprises:
 rotating the lower fan housing in the circumferential direction to release the restriction of the vertical direction between the lower cover and the lower fan housing.   
     
     
         20 . The method according to  claim 14 , wherein, when the restriction of at least one of the first catch device or the second mechanism is released, electrical disconnection between the modules is performed.