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Axial flow impeller and fan

An axial flow impeller and blade technology, applied in the field of axial flow fans, can solve the problems of increasing wheel dynamic balance and difficult to apply in practice, and achieve the effects of reducing dynamic balance, reducing axial flow noise, and reducing noise.

Active Publication Date: 2021-12-31
BEIJING HANGTIAN RUIXIANG TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The noise of the axial flow fan is one of the main problems that need to be solved in the application process of the fan. The research shows that the uneven distribution of the blades of the axial flow fan around the center can reduce the axial flow noise of the fan to a certain extent, but due to the uneven distribution of the blades The dynamic balance of the rear impeller increases, which is difficult to apply in practice

Method used

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  • Axial flow impeller and fan

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Effect test

Embodiment 1

[0032] Reference attached figure 1 , Embodiment 1 of the present invention proposes an axial flow impeller, the axial flow impeller includes: a hub 1;

[0033] An inner ring blade set, the inner ring blade set includes a plurality of inner ring blades 2 installed on the outer peripheral surface of the hub 1, and the gaps formed between at least part of the adjacent inner ring blades 2 are not equal;

[0034] An outer ring blade set, the outer ring blade set includes a plurality of outer ring blades 3, and the gaps formed between at least part of the adjacent outer ring blades 3 are unequal;

[0035] The first transition ring 4, the first transition ring 4 is coaxially arranged with the hub 1, and the inner peripheral surface of the first transition ring 4 is used to connect the inner ring blade group, and its outer peripheral surface is used to install the outer ring blade set;

[0036] Wherein, the inner ring blade set has a first center of gravity, the outer ring blade set...

Embodiment 2

[0061] Embodiment 2 of the present invention provides a fan, which includes: the above-mentioned axial flow impeller.

[0062] An embodiment of the present invention proposes a fan, including the above-mentioned axial flow impeller, by setting the axial flow impeller as a combination of an inner ring blade set and an outer ring blade set, and the inner ring blade set and the outer ring blade set pass through a first The transition ring 4 is connected and installed, and the gaps formed between at least part of the adjacent inner ring blades 2 of the inner ring blade group are not equal, and the gaps formed between at least part of the adjacent outer ring blades 3 are not equal, It can reduce the noise generated by the axial flow fan during operation, and at the same time ensure that the first center of gravity and the second center of gravity are on the same line as the center of the hub 1, and are symmetrical to each other about the center of the hub 1, so that the axial flow i...

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Abstract

The application provides an axial flow impeller and a fan, which relate to the technical field of axial flow fans. Wherein, the axial flow impeller includes a hub; an inner ring blade set, the inner ring blade set includes a plurality of inner ring blades installed on the outer peripheral surface of the hub, and the gap formed between at least part of the adjacent inner ring blades Not equal; the outer ring blade set, the outer ring blade set includes a plurality of outer ring blades, the gaps formed between at least part of the adjacent outer ring blades are not equal; the first transition ring, the first transition ring It is arranged coaxially with the hub, and the inner peripheral surface of the first transition ring is used to connect the inner ring blade set, and its outer peripheral surface is used to install the outer ring blade set; wherein, the inner ring blade set The outer ring blade set has a second center of gravity, the first center of gravity and the second center of gravity are on the same line as the center of the hub, and are symmetrical to each other with respect to the center of the hub.

Description

technical field [0001] The present application relates to the technical field of axial flow fans, in particular to an axial flow impeller and a fan. Background technique [0002] The noise of the axial flow fan is one of the main problems that need to be solved in the application process of the fan. The research shows that the uneven distribution of the blades of the axial flow fan around the center can reduce the axial flow noise of the fan to a certain extent, but due to the uneven distribution of the blades The dynamic balance of the rear impeller increases, which is difficult to apply in practice. Therefore, how to reduce the dynamic balance of the impeller while reducing the noise of the axial flow fan is an urgent problem to be solved at present. Contents of the invention [0003] The purpose of the embodiments of the present application is to provide an axial flow impeller and a fan, so as to reduce the dynamic balance of the impeller while reducing the noise of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/32F04D29/66
CPCF04D29/327F04D29/328F04D29/662F04D29/666
Inventor 孟凡伟
Owner BEIJING HANGTIAN RUIXIANG TECH DEV CO LTD