US 12,111,063 B2
Air intake and exhaust assembly and packaged air conditioner
Zhigang Xing, Foshan (CN); and Eli Zhao, Foshan (CN)
Assigned to GD MIDEA AIR-CONDITIONING EQUIPMENT CO., LTD., Foshan (CN)
Appl. No. 17/430,223
Filed by GD MIDEA AIR-CONDITIONING EQUIPMENT CO., LTD., Foshan (CN)
PCT Filed Apr. 30, 2020, PCT No. PCT/CN2020/088359
§ 371(c)(1), (2) Date Aug. 11, 2021,
PCT Pub. No. WO2021/179422, PCT Pub. Date Sep. 16, 2021.
Claims priority of application No. 202010162017.2 (CN), filed on Mar. 10, 2020; and application No. 202020289424.5 (CN), filed on Mar. 10, 2020.
Prior Publication US 2022/0307702 A1, Sep. 29, 2022
Int. Cl. F24F 1/028 (2019.01); F24F 13/02 (2006.01)
CPC F24F 1/028 (2019.02) [F24F 13/0245 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An air intake and exhaust assembly comprising:
a first air pipe, a first air duct being formed in the first air pipe and configured to be communicated with one of an air outlet of an air exhaust volute of a packaged air conditioner and an air inlet of the packaged air conditioner, the first air pipe including a first telescopic hose;
a second air pipe arranged adjacent to the first air pipe, a second air duct being formed between an inner wall of the second air pipe and an outer wall of the first air pipe, and the second air duct being configured to be communicated with another one of the air outlet of the air exhaust volute and the air inlet of the packaged air conditioner, the second air pipe including a second telescopic hose, the second telescopic hose being different from the first telescopic hose, and the second air pipe and the first air pipe being configured to be stretched or contracted simultaneously;
a first joint fixedly connected to one end of the second air pipe, the first joint being provided with a through hole connected to the second air duct;
a second joint arranged in the first through hole and connected to the first joint, the second joint being fixedly connected to one end of the first air pipe and provided with a second through hole connected to the first air duct; and
a connection rib connecting the second joint and the first joint, the connection rib dividing the first through hole into two equal portions;
wherein at least part of the outer wall of the first air pipe along a length direction of the first air pipe is fixedly connected to the second air pipe.