Pump assembly and washing equipment with pump assembly

Abstract

The invention belongs to the field of pump devices, provides a pump assembly and washing equipment with the pump assembly, and aims at solving the problems that a pump device of an existing washing machine is low in water discharge and poor in hydraulic performance. The pump assembly comprises a pump body, an impeller and a driving component, and a water inlet cavity and at least one drainage cavity are formed in the pump body, the water inlet cavity and the drainage cavities intersect, and therefore intersections are formed. A water inlet communicating with the water inlet cavity and water outlets communicating with the drainage cavities are formed in the pump body. The impeller is arranged in the drainage cavities, and the impeller comprises a wheel disc and multiple blades located on one side of the wheel disc. The driving component is connected with the impeller and used for driving the impeller to rotate. An anti-depressurizing channel is formed by the intersections and the upperedges of the blades in the direction parallel to the axis of the impeller, so that the flow of the water outlets is increased. According to the pump assembly, the pump flow can be effectively increased, the hydraulic performance of the pump can be improved, and therefore the water discharge efficiency and cleaning effect of the washing machine are improved.

Description

technical field [0001] The invention relates to the field of pump devices, in particular to a pump assembly and washing equipment equipped with the pump assembly. Background technique [0002] The water pump is an indispensable power device for washing machines, and its importance is self-evident. The existing washing machine pump is an AC pump driven by a permanent magnet synchronous motor. The basic speed is 3000 rpm, and the drainage flow is about 20L per minute. Although the price is cheap, the drainage flow is relatively low. The hydraulic performance in the shower system is poor. [0003] In order to improve the spray effect in the cycle spray program of the washing machine, some washing machine models are equipped with a drain pump or circulation pump with a brushless DC motor. 1 minute, 4500 rpm, 6000 rpm and other speeds to achieve a drainage flow of about 40-120L per minute, or even higher drainage flow, thereby improving the hydraulic performance of the pump. H...

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Problems solved by technology

[0005] In order to solve the above-mentioned problems in the prior art, that is, in order to solve the problems of low displacement and poor hydraulic performance of the pump device of the existing washing machine, the first aspect of the present invention provides a pump assembly, which includes: a pump body, A water inlet cavity and at least one drainage cavity are formed, the water inlet cavity and the drainage cavity meet and thus form a confluence part, and the pump body is provided with a water inlet communicating with the water inlet cavity and with the drainage cavity A water outlet connected to the cavity; an impeller, which is arranged in the drainage cavity, and the impeller includes a disc and a plurality of blades located on one side of the disc; a driving part, which is connected with the impeller and is used to drive the The impeller rotates; wherein, in a direction parallel to the axis of the impeller, an anti-pressure passage is formed between the intersection and the upper edge of the blade, so as to increase the flow rate of the water outlet

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