Motors and vacuum cleaners

Abstract

The invention provides a motor and a vacuum cleaner. The motor includes a casing, an impeller (30), a diffuser (40), a rotor assembly (50) and a stator assembly (60). The motor has an air inlet and an air outlet, and the air inlet is provided with an air inlet and an air outlet. On the housing, the impeller (30) and the diffuser (40) are arranged in the housing, the impeller (30) is arranged adjacent to the air inlet and is connected with the rotor assembly (50), and the diffuser (40) is located on the side of the impeller (30). Downstream, the stator assembly (60) is located downstream of the diffuser (40), the housing includes a front housing (10) and a rear housing (20) connected, the rear inner wall of the front housing (10) and the rear housing A first air duct is enclosed between the front inner wall of (20) and the diffuser (40), the first air duct is in communication with the outlet and air outlet of the impeller (30), and the inner diameter of the rear end of the rear inner wall is smaller than or equal to the front inner wall. The inner diameter of the front end. The technical solution of the present invention reduces energy loss and noise.

Description

technical field [0001] The invention relates to the technical field of dust collection equipment, in particular to a motor and a dust collector. Background technique [0002] At present, the motor in the vacuum cleaner uses a metal casing, and the airflow enters through the inlet of the metal casing. After passing through the impeller, the flow rate of the airflow is high and the flow direction is radially outward of the casing, and the airflow hits the inner wall of the casing vertically. , and then forcibly change the direction of the fluid. The disadvantage of this is that the airflow directly hits the shell, causing kinetic energy loss, eddy currents and noise. [0003] In view of the above defects, the prior art provides a centrifugal fan, the centrifugal fan includes a casing, an impeller, a stationary blade assembly and a motor, the casing has an air inlet and an air outlet, and the impeller and the stationary blade assembly are both arranged in the casing, The impel...

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a motor and a vacuum cleaner to solve the problem in the prior art that the airflow flows through the joint between the rear inner wall of the front cover and the outer front end of the rear baffle, resulting in energy loss and noise.

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