Title:
SILENCING AIR DUCT DEVICE, AIR DUCT ASSEMBLY, AND CLEANING ROBOT
Document Type and Number:
WIPO Patent Application WO/2023/174338
Kind Code:
A1
Abstract:
A silencing air duct device, an air duct assembly, and a cleaning robot, relating to the technical field of air purification. According to an airflow channel (10) in the silencing air duct device, an air inlet direction and an air outlet direction are set to be at least partially staggered, such that a flow direction of an airflow in the airflow channel is changed, and the flow speed of the airflow is reduced. In the airflow channel (10), multiple stages of flow dividing assemblies (20) are arranged from the end close to an air inlet (11) to the end close to an air outlet (12), each flow dividing body (21) in the flow dividing assemblies (20) divides the airflow channel (10) into at least two flow dividing channels (22), a path length in the airflow channel (10) is prolonged, and each stage of flow dividing assembly (20) can further divide the airflow, such that the area of contact between air and each flow dividing body (21) and the length of an airflow path are increased in a disguised manner, sound waves can be more sufficiently subjected to energy absorption and silencing in the airflow channel (10), the situation that airflow is exhausted by selecting the shortest path in the airflow channel (10) can also be avoided, it is ensured that a wind resistance parameter in the airflow channel (10) satisfies the operation requirement of cleaning equipment, and meanwhile, the denoising effect is improved.
Inventors:
DENG MEIMING (CN)
Application Number:
PCT/CN2023/081642
Publication Date:
September 21, 2023
Filing Date:
March 15, 2023
Export Citation:
Assignee:
GUANGZHOU SHIYUAN ELECTRONICS CO LTD (CN)
GUANGZHOU SHIRUI ELECTRONICS CO LTD (CN)
GUANGZHOU SHIRUI ELECTRONICS CO LTD (CN)
International Classes:
A47L9/00; A47L5/22
Foreign References:
| CN212538221U | 2021-02-12 | |||
| CN213901431U | 2021-08-06 | |||
| CN204750174U | 2015-11-11 | |||
| CN211299813U | 2020-08-21 | |||
| CN214231212U | 2021-09-21 | |||
| CN211933902U | 2020-11-17 | |||
| CN211460047U | 2020-09-11 | |||
| JP2009089561A | 2009-04-23 | |||
| CN217696390U | 2022-11-01 |
Attorney, Agent or Firm:
BEIJING ZFANG PATENT AGENCY (CN)
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