SILENCING AIR DUCT DEVICE AND CHARGING PILE

WIPO Patent Application WO/2024/098541

A1

Disclosed in the present application are a silencing air duct device and a charging pile. The silencing air duct device is separately provided with a silencing air duct and a micro-perforated cavity; two ends of the silencing air duct are open, one end being used for leading to external air, and the other end being used for being communicated with an air inlet or air outlet of a device to be silenced; the micro-perforated cavity is provided in a gas flow path of the silencing air duct, and, by means of communication holes formed in the micro-perforated cavity, is communicated with the silencing air duct. During use, the silencing air duct device is installed on the device to be silenced, so that gas to be silenced generated by the device to be silenced can enter the inside of the silencing air duct of the silencing air duct device for noise reduction; and additionally, because the gas flow path of the silencing air duct is communicated with the micro-perforated cavity, the gas can enter the micro-perforated cavity for further noise reduction, thereby reducing the noise of the device to be silenced.

YAO QI (CN)
ZHOU SHIWEN (CN)
YANG HANG (CN)
ZHOU JIE (CN)

PCT/CN2022/144045

May 16, 2024

December 30, 2022

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SUNGROW POWER SUPPLY CO LTD (CN)

B60L53/31; B60L53/302; E04B1/82; F04D29/66

CN109505808A	2019-03-22
CN210658083U	2020-06-02
CN205177403U	2016-04-20
CN112757943A	2021-05-07
CN112804843A	2021-05-14
CN113752880A	2021-12-07
EP1842977A1	2007-10-10

UNITALEN ATTORNEYS AT LAW CO., LTD. (CN)

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