Exhaust assembly for dish-washing machine and dish-washing machine

Abstract

The invention discloses an exhaust assembly for a dish-washing machine and the dish-washing machine. The exhaust assembly comprises a shell wherein an exhaust channel is formed in the shell, and the exhaust channel is provided with an air inlet and an air outlet; at least two partition plates which are arranged in the exhaust channel in the exhaust direction to form at least one silencing cavity,wherein airflow through holes matched with the silencing cavities to form through-flow section mutation are formed in the partition plates, and the through-flow section in the exhaust channel is mutated, so that sound waves with specific frequency are reflected and interfered at the through-flow section mutation position, and further, the airflow noise is effectively reduced. The number, the volume, the positions and the like of the silencing cavities are reasonably selected according to the specific noise frequency, and the exhaust channel is constructed to reduce noise of the specific frequency band, so that the exhaust channel has a large noise reduction frequency band range.

Description

technical field [0001] The invention relates to the technical field of washing appliances, in particular to an exhaust assembly for a dishwasher and the dishwasher. Background technique [0002] The exhaust channel of the dishwasher is a part of the drying system of the dishwasher. The water vapor generated during the process of drying the dishes in the dishwasher is discharged out of the dishwasher through the exhaust channel, but due to its non-tightness, During the entire operation of the dishwasher, the exhaust channel of the dishwasher is also one of the paths for the noise to come out. At present, the structural design of the exhaust channel of the dishwasher mainly considers the single structural function of discharging water vapor, and most of them do not take into account As a path for noise transmission, noise reduction and noise reduction are required. [0003] The means for the dishwasher in the prior art to reduce the noise of the exhaust passage is mainly to s...

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Problems solved by technology

[0002] The exhaust channel of the dishwasher is a part of the drying system of the dishwasher. The water vapor generated during the process of drying the dishes in the dishwasher is discharged out of the dishwasher through the exhaust channel, but due to its non-tightness, During the entire operation of the dishwasher, the exhaust channel of the dishwasher is also one of the paths for the noise to come out. At present, the structural design of the exhaust channel of the dishwasher mainly considers the single structural function of discharging water vapor, and most of them do not take into account As the path of noise transmission, noise reduction and noise reduction are required

[0003] The means for the dishwasher in the prior art to reduce the noise of the exhaust passage is mainly to set corresponding structures in the exhaust passage to reflect and block the sound, or to wrap sound-absorbing and sound-insulating materials for sound noise reduction. However, the noise reduction effect of this processing method is not ideal, the noise reduction frequency range is small, and with the aging of sound absorption and sound insulation materials, the noise reduction effect will also be significantly weakened

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