Draining pump and clothes dryer

Abstract

The invention provides a draining pump and a clothes dryer. The draining pump comprises a shell and an exhaust channel, wherein the shell is of a cavity structure with the side wall being provided with an exhaust opening; the exhaust channel is formed in the shell and located at the exhaust opening and is of a semi-closed structure with the side wall being provided with an opening; and the openingand the exhaust opening are different in orientation, and gas inside the shell is discharged out of the shell after passing through the exhaust opening and the exhaust channel. According to the draining pump, the exhaust opening is formed in the side wall of the shell, the exhaust channel is formed outside the shell and located at the exhaust opening, and the gas inside the shell is discharged out of the shell through the exhaust channel after passing through the exhaust opening, so that the problem that gas is trapped inside the shell is effectively solved; furthermore, when the gas is discharged through the exhaust channel, the gas needs to turn, and thus the draining resistance is increased; flow losses of the draining pump are reduced; performance parameters of the draining pump are guaranteed; and when the draining pump works, water cannot be splashed to electric parts above, and use safety of the draining pump is guaranteed.

Description

technical field [0001] The invention relates to the field of household appliances, in particular to a drainage pump and a clothes dryer. Background technique [0002] During the working process of the drainage pump, due to the reason of the drainage pipeline, the phenomenon of trapped air in the pump cavity often occurs, that is, the impeller inside the cavity cannot touch the water, and the impeller cannot pump the water out when it rotates, resulting in abnormal drainage. [0003] Existing solutions are often to open air vents on the top of the water pump cavity, so that the air inside the pump cavity is discharged from a higher place, and the water can fill the cavity in time to submerge the impeller to ensure normal water pumping. But this will bring a problem at the same time, that is, when the drainage pump is working, the impeller rotates at a high speed, and the force of driving the water flow will be great, and part of the water will spurt out from the vent hole. On...

AI Technical Summary

Problems solved by technology

But this will bring a problem at the same time, that is, when the drainage pump is working, the impeller rotates at a high speed, driving the water flow will be very strong, and part of the water will spew out from the vent hole. On the one hand, it will affect the electrical appliances above the pump On the other hand, if the opening is too large, the flow rate of the pump will be reduced, the residual water will increase, and the working capacity of the pump will be reduced.

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