Anordnung zur Geräusch und Schwingungsminderung für Entleerungspumpe

摘要

An apparatus for controlling a noise and a vibration of a drain pump, including: a magnet (61) rotated by a mutual interaction with a stator (15) that forms a magnetic field when power is applied thereto; a rotational shaft (62) combined to the magnet (61); a coupling cylinder (62a) combined to an end portion of the rotational shaft (62); a first coupling member (64a) formed at one side of a circumferential portion of the coupling cylinder (62a); an impeller (71a) including a tap receiving unit (S2) to which the coupling cylinder (62a) is inserted; a second coupling member (72a) formed at one side of the inner surface of the impeller (71a) and positioned at a predetermined portion of a rotation trajectory of the first coupling member (64a); a buffer member (R1) positioned between the first coupling member (64a) and the second coupling member (72a); and a fixed circular disk (65) insertedly combined at a portion of the rotational shaft (62) positioned at the lower side of the coupling cylinder (62a) so that its outer circumferential end portion is combined to the inner circumferential surface of the impeller (71a), in order to minimize the noise and the vibration generated due to the coupling of the impeller tap and the shaft tap in the initial driving of the drain pump, the buffer (R1) member is disposed between the impeller tap and the shaft tap to alleviate the impact generated in coupling, so that the parts can be prevented from breaking down, the noise and the vibration can be minimized in coupling, and the pumping performance can be highly improved.