Title:
ACCESSORY AND HAIR CARE DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/078365
Kind Code:
A1
Abstract:
An accessory and a hair care device. The accessory is provided with a fluid channel (100) and a communication cavity (200). The accessory comprises a sound-absorbing piece (10) that is provided with a sound-absorbing cavity (300). The communication cavity (200) is used for communicating the fluid channel (100) with the sound-absorbing cavity (300). The hair care device comprises a body portion and an accessory. When the hair care device is in operation, acoustic waves formed by a generated fluid passing through the fluid channel (100) may be transmitted to the communication cavity (200), so that the fluid column in the communication cavity (200) generates vibrations and forms resonance with the acoustic waves, and then the acoustic energy of the acoustic wave is converted into heat energy by means of friction damping generated by the vibration of the fluid column, thereby reducing the noise generated when the fluid passes through the fluid channel (100). Furthermore, the communication cavity communicates with the sound-absorbing cavity, so that the fluid column may be extended and expanded in volume, thereby expanding the volume of a resonance system which resonates with the acoustic waves, and further improving the noise reduction effect of the accessory. Meanwhile, the sound-absorbing cavity and the communication cavity may be designed to achieve quantitative elimination of noise of a specific frequency.
Inventors:
QIU YUNFENG (CN)
NIU KANG (CN)
PU LIHENG (CN)
NIU KANG (CN)
PU LIHENG (CN)
Application Number:
PCT/CN2022/129622
Publication Date:
May 11, 2023
Filing Date:
November 03, 2022
Export Citation:
Assignee:
SHENZHEN SOOCAS TECH CO LTD (CN)
International Classes:
A45D20/42; A45D20/10; A45D20/12
Foreign References:
| CN217510057U | 2022-09-30 | |||
| CN114098257A | 2022-03-01 | |||
| CN102697277A | 2012-10-03 | |||
| JPH07155219A | 1995-06-20 | |||
| CN209983669U | 2020-01-24 | |||
| CN206603404U | 2017-11-03 | |||
| CN213524212U | 2021-06-25 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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