Title:
NOISE REDUCTION MOTOR ASSEMBLY AND CLEANING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/183741
Kind Code:
A1
Abstract:
A noise reduction motor assembly and a cleaning device. Specifically, a silencing partition plate (33) is provided between a motor (2) and a housing (1) of the noise reduction motor assembly, a solution of sound insulation of a single housing is changed to a solution of double-layer sound insulation of the housing (1) and the silencing partition plate (33), and the volume of sound insulation is increased. In addition, the silencing partition plate (33) is provided with a plurality of silencing holes (31), and noise of a corresponding frequency band of the motor (2) can be eliminated by consuming sound energy by means of vibration of air columns of hole necks of the silencing holes (31). Moreover, a blocking plate (4) is provided at an air outlet (12) in the housing (1), so that the airflow can be blocked from flowing directly to the air outlet (12), but flows to the air outlet (12) by means of the edge of the blocking plate (4), and the motor leakage noise at the position of the air outlet (12) can be reduced. Furthermore, the silencing partition plate (33) is semi-wrapped on the outer side of the motor (2), so that the circulation of airflow inside the housing (1) cannot be blocked, the characteristic loss is small, and the service performance of the noise reduction motor assembly is not affected.
Inventors:
ZHAO JIAN (CN)
XU JIAXIN (CN)
XU JIAXIN (CN)
Application Number:
PCT/CN2021/124189
Publication Date:
September 09, 2022
Filing Date:
October 15, 2021
Export Citation:
Assignee:
TINECO INTELLIGENT TECH CO LTD (CN)
International Classes:
H02K5/24
Foreign References:
| CN102025215A | 2011-04-20 | |||
| CN201623576U | 2010-11-03 | |||
| CN206285046U | 2017-06-30 | |||
| CN204559305U | 2015-08-12 | |||
| US20200096008A1 | 2020-03-26 |
Attorney, Agent or Firm:
TEKYRS INTELLECTUAL PROPERTY INC. (CN)
Download PDF: