Shell plate sound isolating structure

A shell plate sound isolating structure, applied in a fan and the shell plate sound isolating structure including:

• a hollow plate body, having a front plate, a rear plate and an annular peripheral plate annularly arranged between outer peripheries of the front plate and the rear plate, wherein the rear plate has a first wind port, the front plate or the annular peripheral plate has at least one second wind port, and the fan is disposed at the first wind port;
• and at least one partition plate, disposed inside the hollow plate body and arranged with a means of fully blocking between the first wind port and the at least one second wind port, wherein a partition space is formed between the at least one partition plate and the hollow plate body so as to form an elongated flow channel, so that the first wind port and the second wind port are only able to be in communication with each other via the elongated flow channel;
• and a U-shaped shield plate extended from the front plate and crossingly disposed a top side and a bottom side of the second wind port, and the front plate has a plurality of fastening ribs extended and abutted against the U-shaped shield plate;
• and an outer circumferential dimension of the U-shaped shield plate is greater than an inner circumferential dimension of the first wind port and an inner circumferential dimension of the second wind port.