ELECTRIC VACUUM CLEANER Russian patent published in 2013 - IPC A47L9/00 

FIELD: personal use articles.

SUBSTANCE: electric vacuum cleaner contains the main housing (25) having a suction inlet hole (44) and at least one outlet hole (49), positioned on the main housing (25) rear wall, an electric blower (51) positioned inside the main housing (25) so that the suction side communicates with the suction inlet hole (44), the electric blower first cover (52) that has the first cover outlet hole (73) releasing air from the electric blower and positioned on the rear lower part of the electric blower first cover (52) and covers the electric blower (51), the electric blower second cover (53) that has at least one outlet hole (81) releasing the air released from the outlet hole (73) of the electric blower first cover and positioned on the front side of the electric blower second cover (53) upper part, covers at least part of the electric blower first cover (52) and supports the electric blower first cover (52) and the housing (84) wherein a confined space is separated to ensure communication between the outlet hole (81) of the electric blower second cover through at least one outlet hole (49) of the main housing (25).

EFFECT: noise of the air stream that becomes especially strong due to concentrated passage of a great volume of air through the narrow and short air channel is absorbed due to ensuring a length of the air release channel with the noise reduction characteristic accordingly improved.

6 cl, 3 dwg