A cross-flow impeller device and an air conditioner

By designing a buffer component for the cross-flow impeller device in the indoor unit of the air conditioner and adjusting the blade frequency, the problem of excessive noise during the operation of the indoor unit of the air conditioner was solved, achieving effective noise reduction and improved user experience.

CN117662521BActive Publication Date: 2026-05-26GREE ELECTRIC APPLIANCE INC OF ZHUHAI
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Patent Information

Application Number
CN202311731404.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-12-15
Publication Date
2026-05-26
Estimated Expiration
2043-12-15

AI Technical Summary

Technical Problem

Existing air conditioner indoor units are too noisy when operating, affecting the user experience.

Method used

Design a cross-flow impeller device, including multiple first blade assemblies. Each blade assembly consists of a buffer assembly and a first blade body. The buffer assembly is composed of a fixed part and a spring-loaded part. It adjusts the blade frequency and reduces rotational noise by elastically moving under the action of airflow.

Benefits of technology

It effectively reduces the rotational noise of the cross-flow impeller device, improving the user experience.

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Abstract

This invention relates to the field of fan technology, and discloses a cross-flow impeller device and an air conditioner. The air conditioner includes an indoor unit and an air duct located within the indoor unit. The cross-flow impeller device is rotatably disposed inside the indoor unit and partially located within the air duct. The cross-flow impeller device includes multiple first blade assemblies, which are spaced apart circumferentially along the cross-flow impeller device. Each first blade assembly includes two buffer assemblies and a first blade body. The two ends of the first blade body are respectively disposed on the two buffer assemblies and can elastically move under air pressure. By setting buffer assemblies at both ends of the first blade body, this invention can compress the buffer assemblies when airflow acts on the first blade body, so that the frequency of airflow impact on each first blade body is different, thereby avoiding the superposition of rotational noise of the first blade body and helping to reduce the rotational noise of the cross-flow impeller device.
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