Drain pump and clothes dryer

Abstract

The invention provides a drain pump and a clothes dryer, wherein the drain pump comprises: a casing, the casing is a cavity structure provided with an exhaust port on the side wall; the exhaust passage is arranged on the casing and is located at the exhaust At the mouth, the exhaust passage is a semi-closed structure in which the side wall is provided with an opening; wherein the opening is different from the direction of the exhaust port, and the gas in the casing passes through the exhaust port and the exhaust passage and exits the casing. The drain pump provided by the present invention is provided with an exhaust port on the side wall of the casing, and the exhaust passage is disposed outside the casing at the exhaust port, and the gas inside the casing passes through the exhaust port and then exits the casing through the exhaust passage. The body effectively solves the problem of trapped air inside the casing; further, when the gas is discharged through the exhaust passage, it needs to be turned, thereby increasing the drainage resistance, reducing the flow loss of the drainage pump, ensuring its performance parameters, and the drainage pump. During operation, water will not be sprayed onto the upper electrical components to ensure safe use of the drain pump.

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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