US 12,000,621 B2
Wind-direction adjustable air purifier
Jun-Hyoung Bae, Seoul (KR); Chan-Jung Park, Seoul (KR); In-Kyu Back, Seoul (KR); Sang-Woo Kang, Seoul (KR); and Tae-Seok Shin, Seoul (KR)
Assigned to COWAY CO., LTD., Chungcheongnam-Do (KR)
Appl. No. 16/346,636
Filed by COWAY CO., LTD., Chungcheongnam-do (KR)
PCT Filed Dec. 7, 2017, PCT No. PCT/KR2017/014269
§ 371(c)(1), (2) Date May 1, 2019,
PCT Pub. No. WO2018/106033, PCT Pub. Date Jun. 14, 2018.
Claims priority of application No. 10-2016-0165032 (KR), filed on Dec. 7, 2016; and application No. 10-2016-0179328 (KR), filed on Dec. 26, 2016.
Prior Publication US 2020/0063991 A1, Feb. 27, 2020
Int. Cl. F24F 8/80 (2021.01); F24F 3/14 (2006.01); F24F 8/117 (2021.01); F24F 13/065 (2006.01); F24F 13/20 (2006.01); F24F 8/108 (2021.01); F24F 8/20 (2021.01); F24F 8/50 (2021.01)
CPC F24F 8/80 (2021.01) [F24F 3/14 (2013.01); F24F 8/117 (2021.01); F24F 13/065 (2013.01); F24F 13/20 (2013.01); F24F 8/108 (2021.01); F24F 8/20 (2021.01); F24F 8/50 (2021.01)] 9 Claims
OG exemplary drawing
 
1. A wind-direction adjustable air purifier comprising:
a housing provided with an air discharge opening formed in a front surface thereof;
an air guide having a front end disposed in a center of the air discharge opening and a rear end extending toward a rear surface of the housing, in such a manner that the air discharge opening has an annular shape; and
a rotation guide disposed inside the housing to be coupled thereto to be rotatable in a circumferential direction of the air discharge opening, and supporting the air guide in the housing,
wherein the air guide is coupled to the rotation guide to be rotatable in a direction inclined relative to an air discharge direction of the air discharge opening,
wherein the air guide has a hollow penetrating from the front surface of the housing to the rear surface of the housing,
wherein the air discharge opening is disposed in the front surface of the housing, and the housing is provided with an air hole communicating with the hollow of the air guide and extending to a back of the housing,
wherein the air guide is rotated within a range in which the hollow communicates with the air hole,
wherein the rotation guide comprises:
an annular frame surrounding an outer circumferential surface of a rim portion having a shape corresponding to a shape of the air discharge opening and disposed on the air discharge opening and rotatably coupled to an outer periphery of the air discharge opening;
rotating shaft members rotatably coupling the rim portion to the annular frame; and
a support frame rotatably supported on a partition wall provided in the housing and contacting the rear end of the air guide,
wherein the support frame is provided with a contacted surface in contact with the rear end of the air guide,
wherein the contacted surface is configured as a curved surface corresponding to a turning locus of the rear end of the air guide when the air guide rotates, to be in contact with the rear end of the air guide on an entire circumference of the hollow when the air guide rotates, and
wherein the curved surface is curved depending on a curvature of a circle or a sphere whose radius is a distance from a center of a virtual straight line connecting the rotating shaft members on both sides of the air guide to the rear end of the air guide.