Air intakes and vacuum cleaners for vacuum cleaners

Abstract

The invention discloses an air intake device for a vacuum cleaner and the vacuum cleaner. The air intake device comprises: a base; a motor outer cover, a second slot is provided on the upper edge of the motor outer cover and an air outlet is provided on the motor outer cover; an inner cover of the motor, The inner cover of the motor has a through hole communicating with the air outlet; the motor; the upper cover of the motor, the lower edge of the upper cover of the motor is inserted on the upper edge of the inner cover of the motor and the upper cover of the motor has an upward opening; the wind collecting cover, the air collecting The top wall of the cover has a first through hole opposite to the opening; a first sealing ring; and a motor air intake cover. According to the air intake device for a vacuum cleaner of the present invention, the noise generated inside the air intake device and propagated from the inside to the outside is initially filtered in the second sound-absorbing chamber, and then further filtered in the third sound-absorbing chamber, thus, It can effectively isolate the noise generated by the air intake device, greatly reducing the noise of the vacuum cleaner, so that better mute or ultra-quiet products can be obtained.

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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