VOLUTE CASING, AIR PASSAGE ASSEMBLY, AND AIR CONDITIONER

WIPO Patent Application WO/2023/103121

A1

A volute casing structure (100), an air passage assembly (200), and an air conditioner, comprising a volute casing body (150), having a body portion (110) and an outlet portion (120), and a volute tongue (130) being formed at a connection position between the body portion (110) and the outlet portion (120); and a hedging hole (140), provided on the volute tongue (130), and being used for communicating the atmosphere with the volute casing body (150) and forming a hedging airflow at a position close to the volute tongue (130) to block the airflow in the body portion (110) from impacting the volute tongue (130). The hedging airflow can be formed by providing the hedging hole (140) and using a low-pressure area (A1) to absorb air in an external space; the hedging airflow forms a gas protection layer (P) at the volute tongue (130); the gas protection layer (P) can slow down the airflow in the body portion (110), and can reduce or prevent the direct impact of the airflow in the body portion (110) on the side surface of the volute tongue (130), thereby reducing or eliminating aerodynamic noise caused by large impact.

DAI SIQUAN (CN)
ZHANG YONG (CN)
YANG LIN (CN)
CHI MANG (CN)

PCT/CN2021/142500

June 15, 2023

December 29, 2021

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TCL AIR CONDITIONER ZHONGSHAN CO LTD (CN)

F04D29/42; F24F1/00; F24F13/08; F24F13/24

CN203454371U	2014-02-26
CN104675754A	2015-06-03
CN107461816A	2017-12-12
CN205401239U	2016-07-27
CN206905124U	2018-01-19
CN213872825U	2021-08-03
CN108105159A	2018-06-01
CN110925240A	2020-03-27
CN106593958A	2017-04-26
JP2017044132A	2017-03-02

PURPLEVINE INTELLECTUAL PROPERTY (SHENZHEN) CO., LTD. (CN)

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