Unlock instant, AI-driven research and patent intelligence for your innovation.

Volute casing and draining pump with same

By setting a fluid interference surface on the inner wall of the drainage pump volute to break up water and air, the noise problem in the water-air mixing stage in traditional technology is solved, the noise is converted into continuous noise, the user experience is improved and the fluid impact is reduced.

Inactive Publication Date: 2012-05-30
JOHNSON ELECTRIC SHENZHEN
View PDF8 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the later stage of drainage, there are both water and air in the volute of the drainage pump, which is the stage of water mixed with air. The noise felt by the user at this stage is relatively large, and because the inner wall of the volute in the traditional technology is smooth, the water Mixes smoothly with the air, thus producing a regular intermittent noise at the volute outlet that can easily annoy the user

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The technical solutions and other beneficial effects of the present invention will be apparent through the detailed description of specific embodiments of the present invention below in conjunction with the accompanying drawings.

[0024] refer to figure 1 A drainage pump 100 according to an embodiment of the present invention includes a motor 110 , an impeller 120 driven by the motor 110 , and a volute 130 accommodating the impeller 120 therein. The motor 110 includes a stator 111 and a rotor 112 magnetically coupled to the stator 111 .

[0025] The volute 130 can be made of plastic, is roughly circular, and includes a cover and a bottom plate 131 . The cover body includes a top plate 132 and a side wall 133 integrally formed. The bottom plate 131 is sealed and fixed to the side wall 133, and an opening is provided in the center for the shaft of the rotor 112 to pass through, and a sealing device (not shown) is provided between the bottom plate 131 and the rotor 112 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The embodiment of the invention discloses a volute casing and a draining pump with the volute casing. The volute casing comprises a cover body and a baseplate, wherein an impeller chamber is formed between the cover body and the baseplate and can be used for containing an impeller which can rotate around a rotating shaft so as to drive fluid in the volute casting to flow; the volute casing also comprises an inlet and an outlet which are communicated with the impeller chamber; and the inner wall of the volute casing is provided with a fluid interference surface which is used for scattering the fluid. The embodiment of the invention has the advantages that the impact of the fluid on the volute casting can be mitigated, and rising and falling half-water half-air noise and the like generated when residual water in the volute casting moves are solved.

Description

technical field [0001] The present invention relates to a pump, in particular to a pump volute structure. Background technique [0002] For example, the working process of a drain pump used in household appliances such as washing machines or dishwashers can generally be divided into two stages: full water and water mixed with air. When the drainage pump works in the full water stage, the volute is filled with water, and the user feels less noise in this stage. In the later stage of drainage, there are both water and air in the volute of the drainage pump, which is the stage of water mixed with air. The noise felt by the user at this stage is relatively large, and because the inner wall of the volute in the traditional technology is smooth, the water Mixes smoothly with the air, thus producing a regular intermittent noise at the exit of the volute, which tends to annoy the user. [0003] The present invention aims to provide a novel volute structure, which can improve the n...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/42
CPCF04D29/426F04D29/445F05D2250/61
Owner JOHNSON ELECTRIC SHENZHEN