SILENCING AIR DUCT DEVICE AND CHARGING PILE

A 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.