Air intake device used for dust collector and dust collector

Abstract

The invention discloses an air intake device used for a dust collector and the dust collector. The air intake device comprises a base, an outer cover of a motor, an inner cover of the motor, the motor, an upper cover of the motor, an air collecting cover, a first sealing ring and an air intake cover of the motor. The upper edge of the outer cover of the motor is provided with a second slot, and the outer cover of the motor is provided with an air outlet. The inner cover of the motor is provided with a through hole communicated with the air outlet. The lower edge of the upper cover of the motor is inserted in the upper edge of the inner motor of the motor, and the upper cover of the motor is provided with an upward opening. The top wall of the air collecting cover is provided with first through holes opposite to the opening. According to the air intake device used for the dust collector, noise, transmitted from inside to outside, generated from the inside of the air intake device is filtered primarily in a second silencing cavity, and filtered secondarily in a third silencing cavity, thus the noise generated by the air intake device is isolated effectively and noise of the complete dust collector is lowered greatly. Therefore, the dust collector is a good silent or super-silent product.

Description

technical field [0001] The invention relates to the technical field of household appliances, in particular to an air intake device for a vacuum cleaner and a vacuum cleaner with the air intake device for a vacuum cleaner. Background technique [0002] In traditional vacuum cleaners, the noise generated by the motor often accounts for the most important part. There are two main parts of the motor that generate noise, one is the moving impeller, and the other is the friction between the motor carbon brush and the rotor. At present, the market has higher and higher requirements for the quietness of vacuum cleaners. Finding ways to reduce noise has become the mainstream of research and development. The methods to reduce motor noise generally include isolation of the motor cover, wrapping with sound-absorbing materials and extending the air outlet duct. At present, in order not to increase the wind resistance and affect the efficiency of the vacuum cleaner, most of the technologi...

AI Technical Summary

Problems solved by technology

The air intake filter frame and sponge can properly block the noise generated by the moving impeller when the motor is running, but it will greatly reduce the efficiency of the entire machine; while the longer air duct can only slowly reduce the noise, and cannot Block the gradual outward conduction of motor noise, and at the same time, the long-distance air duct also greatly reduces the efficiency of the whole machine

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