Water pump impeller for dish washing machine

Abstract

The invention relates to a water pump impeller for a dish washing machine. The water pump impeller comprises an impeller core and an outer cover barrel. The outer cover barrel is a pure barrel or is an equivalent barrel formed by other close articles around blades. The equivalent barrel and the impeller core form an actual water flow runner. The impeller core is formed by a center shaft and the blades of multiple sets of water flow conveying units evenly distributed on the circumferential face of the outer side of the center shaft. The impeller core is divided into an impeller core upper segment and an impeller core lower segment, and centrifugal wheels are arranged on the impeller core upper segment. The water pump impeller is characterized in that the impeller core lower segment is formed by one stage or two stages or above of water flow conveying units; blade bodies of the centrifugal wheels on the impeller core upper segment are distributed non-radially on the circumferential faceof the outer side of the center shaft; and the impeller core and the outer cover barrel are integrated or split. The spiral runner is applied, water flow can be easily lifted, the impeller can work stably in different rotating speed zones of the motor, efficiency is high, flow is large, and propelling of water flow is stronger.

Description

【Technical field】 [0001] The invention relates to a water pump impeller for a dishwasher. 【Background technique】 [0002] A dishwasher is a device that automatically cleans tableware such as bowls, chopsticks, plates, plates, knives, forks, and rinses fruits and vegetables. Dishwashers on the market can be divided into two categories: household and commercial. Household dishwashers mainly include desktop, cabinet (embedded), integrated sink and integrated. [0003] The impeller of the water pump is driven by the rotating shaft of the motor, and the water in the water source is pumped up and thrown out through the impeller. Rinse cutlery such as knives and forks as well as fruits and vegetables. In principle, vane pumps include centrifugal, axial flow, and mixed flow types. The centrifugal type has large force but narrow blade height, the axial flow type has large flow rate but low head, and the mixed flow type is between the former two. Dishwashers (especially domestic di...

AI Technical Summary

Problems solved by technology

[0004] Although the water pump impellers used in some dishwashers on the market have improved composite impellers on the basis of the first-stage impellers, they are not simple one-stage impellers, such as patent publication numbers [CN104235061 B], [CN205823715 U], [CN205823716 U] , [CN207513917 U], but the improvement effect is still insufficient, mainly as follows: when the motor speed enters the high speed area, the relationship between the flow and the speed is obviously passivated, but the power is greatly increased, the efficiency is reduced, and the stability is poor

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