US 11,808,275 B2
Blower having a movable air flow converter
Kunyoung Lee, Seoul (KR); Keunman Park, Seoul (KR); Bohyun Kim, Seoul (KR); and Myungjin Ku, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Filed by LG ELECTRONICS INC., Seoul (KR)
Filed on Aug. 30, 2022, as Appl. No. 17/898,575.
Claims priority of application No. 10-2021-0117647 (KR), filed on Sep. 3, 2021.
Prior Publication US 2023/0071183 A1, Mar. 9, 2023
Int. Cl. F04D 25/08 (2006.01); F04D 25/06 (2006.01); F04D 25/10 (2006.01); F04F 5/16 (2006.01); F04D 29/46 (2006.01)
CPC F04D 25/08 (2013.01) [F04D 25/06 (2013.01); F04D 25/10 (2013.01); F04D 29/462 (2013.01); F04F 5/16 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A blower, comprising:
a lower case that includes an inlet;
a first tower that extends upward from the lower case, the first tower including a first wall, and a first outlet opened forward on the first wall;
a second tower that extends upward from the lower case and is spaced apart from the first wall, the second tower including a second wall facing the first wall, and a second outlet opened forward on the second wall;
a blowing space formed between the first and second walls and into which air discharged from the first and second outlets flows;
a fan that is provided in the lower case and that cause air introduced from the inlet to flow to the first tower and the second tower;
a first air flow converter that is provided at the first tower; and
a second air flow converter that is provided at the second tower,
wherein each of the first air flow converter and the second air flow converter includes:
a guide board that moves between a first position at which the guide board is positioned inside a corresponding one of the first tower or the second tower and a second position at which a portion of the guide board protrudes through a corresponding one of a first slit formed on the first wall or a second slit formed on the second wall to close a front side of the blowing space;
an upper gear that rotates in engagement with an upper portion of the guide board;
a lower gear that rotates in engagement with a lower portion of the guide board;
a shaft that is connected to the upper gear and the lower gear so that the upper gear and the lower gear rotate together; and
a motor that is connected to at least one of the upper gear or the lower gear to provide a driving force to move the guide board.