US 12,409,724 B2
Air flap having mixed-type door structure
Sung-Wook Park, Daejeon (KR); Ok Ryul Min, Daejeon (KR); Won Sub So, Daejeon (KR); and Yong Min Jo, Daejeon (KR)
Assigned to HANON SYSTEMS, Daejeon (KR)
Appl. No. 17/800,046
Filed by Hanon Systems, Daejeon (KR)
PCT Filed Feb. 16, 2021, PCT No. PCT/KR2021/001973
§ 371(c)(1), (2) Date Aug. 16, 2022,
PCT Pub. No. WO2021/167323, PCT Pub. Date Aug. 26, 2021.
Claims priority of application No. 10-2020-0020267 (KR), filed on Feb. 19, 2020; and application No. 10-2021-0020034 (KR), filed on Feb. 15, 2021.
Prior Publication US 2023/0084648 A1, Mar. 16, 2023
Int. Cl. B60K 11/08 (2006.01); B60K 11/04 (2006.01); B62D 25/08 (2006.01)
CPC B60K 11/085 (2013.01) [B60K 11/04 (2013.01); B62D 25/084 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An air flap assembled to a grille of a vehicle, comprising:
a first door in which a rotation shaft is formed inside a door plane extending in an up and down direction and a left and right direction when the air flap is closed;
a second door in which a rotation shaft is formed outside a door plane extending in an up and down direction and a left and right direction when the air flap is closed; and
a housing including a first opening opened and closed by the first door so that air blowing is controlled in a front and rear direction and a second opening opened and closed by the second door so that air blowing is controlled in the front and rear direction,
wherein the first opening and the second opening are formed to have different sizes,
wherein the first door is formed to rotate around first rotation points formed at ends of left and right sides thereof, and
wherein the second door includes second rotation arms formed to extend in the front and rear direction when the air flap is closed, at ends of left and right sides thereof, and is formed to rotate around second rotation points formed at ends of the second rotation arms,
wherein a length of the first opening in the left and right direction is formed to be smaller than a length of the second opening in the left and right direction,
wherein the end of the left side of the first door is formed to be spaced apart from a first rotation point of the left side or the end of the right side of the first door is formed to be spaced apart from a first rotation point of the right side, by a difference in length in the left and right direction between the first opening and the second opening, and
wherein the end formed to be spaced apart from the first rotation point and the first rotation point corresponding to the end are connected to each other by a first rotation shaft extending in the left and right direction.