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Fan volute, fan and cleaning robot

A technology for cleaning robots and volutes. It is used in machines/engines, mechanical equipment, liquid fuel engines, etc. It can solve problems such as obvious airflow noise, and achieve the effect of reducing airflow noise and weakening the superposition effect.

Pending Publication Date: 2022-01-14
华翼动力科技(东莞)有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]In some applications, for example, when the working speed of the fan is high and the minimum clearance between the inside of the volute and the impeller is small, the traditional design often faces the problem of obvious airflow noise

Method used

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  • Fan volute, fan and cleaning robot
  • Fan volute, fan and cleaning robot
  • Fan volute, fan and cleaning robot

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Embodiment Construction

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0043] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0044] In addition, if there are descriptions involving "first", "second" and ...

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Abstract

The invention discloses a fan volute, a fan and a cleaning robot. The fan volute comprises a volute body and a buffer convex part; the volute body is provided with a shell cavity allowing an impeller to rotate, an annular air channel is formed between the side wall of the shell cavity and the periphery of the impeller, an air outlet is formed in the side wall of the shell cavity, and a volute tongue is formed in the position, at the air outlet, of the side wall of the shell cavity; and the buffer convex part is arranged on the side wall of the shell cavity and extends from the volute tongue in the direction away from the air outlet along the annular air channel, so that airflow generated by rotation of the impeller and impacting the volute tongue is guided in the direction away from the volute tongue along the buffer convex part. According to the technical scheme, the superimposed effect of airflow noise in the fan can be weakened, and the airflow noise can be effectively reduced.

Description

technical field [0001] The invention relates to the field of fans, in particular to a fan volute, a fan and a cleaning robot. Background technique [0002] In general, a centrifugal fan consists of a rotating impeller and a stationary volute. [0003] In the traditional design, the airflow flowing out from different axial positions of the impeller outlet impacts the smallest gap between the inner surface of the volute and the impeller (that is, the junction of the volute tongue and the shell cavity), thereby superimposing a strong airflow noise (its frequency is the product of the impeller rotation frequency and the number of blades). [0004] In some applications, such as when the working speed of the fan is high and the minimum clearance between the inside of the volute and the impeller is small, the traditional design often faces the problem of obvious airflow noise. Contents of the invention [0005] The main purpose of the present invention is to provide a fan volut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/42F04D29/44F04D29/62F04D29/66
CPCF04D29/4226F04D29/441F04D29/667F04D29/626
Inventor 张芳陈日坚庄彬吴佳腾林伟劲
Owner 华翼动力科技(东莞)有限公司
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