| 摘要 |
<p>Disclosed is a dust collector, comprising an air duct (1) and a silencing tube (2), wherein the silencing tube (2) is mounted inside the dust collecting air duct (1); the silencing tube (2) has an open end (22) and a closed end (24); the closed end (24) and the open end (22) are arranged oppositely; an extension wall (23) is provided between the open end (22) and the closed end (24); holes (25, 29) are distributed on the extension wall (23); air flow in the air duct (1) enters the silencing tube (2) via the open end (22), and flows out via the holes (25, 29); the silencing tube (2) is further provided with an air plate (21), with a hole (210) provided on the air plate (21); and the outgassing direction of the hole (210) of the air plate (21) and the outgassing direction of the holes (25, 29) on the extension wall (23) converge to form a turbulence area (S). A turbulence phenomenon formed in the turbulence area (S) reduces the degree of noise, and improves the noise reduction effect of the silencing tube (2).</p> |
