Cross-flow impeller, cross-flow fan and wall air conditioner

A cross-flow fan and impeller technology, applied in the direction of machines/engines, mechanical equipment, non-variable pumps, etc., can solve the problems affecting the noise performance and sound quality of fans, poor uniformity of wind speed, and uneven air flow field , to achieve the effect of improving sound quality, reducing air volume, and uniformity of air speed

Inactive Publication Date: 2015-07-01
GREE ELECTRIC APPLIANCES INC
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

Due to the inconsistency of the outer diameter of the cross-flow impeller in the axial direction, the distance between the support disc and the air duct is smaller than the distance between the blade and the air duct, resulting in uneven air flow field and poor uniformity of the wind speed, which leads to eddy current noise and affects the Fan noise performance and sound quality

Method used

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  • Cross-flow impeller, cross-flow fan and wall air conditioner
  • Cross-flow impeller, cross-flow fan and wall air conditioner
  • Cross-flow impeller, cross-flow fan and wall air conditioner

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Embodiment Construction

[0023] The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0024] figure 2 Shown is a front structural schematic diagram of a cross-flow impeller 100 in one embodiment of the present invention. As shown in the figure, the cross-flow impeller 100 in this embodiment includes a plurality of blades 115, 125 arranged at intervals along the circumferential direction and supports connected to the blades 115, 125 for supporting the plurality of blades 115, 125. The disks 111 and 121 have the same outer diameter at each position in the axial direction of the through-flow impeller 100 .

[0025] Preferably, as image 3 As shown, the outer diameter of the support discs 111, 121 is D1, the outer diameter of the blades 115, 125 is D2, and D2 is greater than or equal to D1. Further...

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Abstract

The invention discloses a cross-flow impeller, a cross-flow fan and a wall air conditioner. The cross-flow impeller comprises a plurality of blades which are arrayed at intervals in the circumferential direction and a supporting plate which is connected with the blades and is used for supporting the blades. The outer diameters of all the axial positions of the cross-flow impeller are the same. According to the cross-flow impeller, due to the fact that the outer diameters of all the axial positions are the same, the air outlet speed of the blades is good in uniformity, transverse vortexes are effectively restrained, and a good mute effect is achieved. Through the test, the cross-flow impeller can lower the aerodynamic noise of the blades by more than 1 dB, the sound quality can be well improved, and the blast capacity cannot be lowered.

Description

technical field [0001] The invention relates to parts of non-variable pumps, in particular to a cross-flow impeller, a cross-flow fan with the cross-flow impeller, and a wall-mounted air conditioner using the cross-flow fan. Background technique [0002] Cross-flow fans are widely used in indoor units of split wall-mounted air conditioners due to their small size, compact structure, and uniform lateral flow. A cross-flow fan includes a cross-flow impeller, an air duct and a motor. like figure 1 , 2 As shown, the existing cross-flow impeller is mainly composed of a plurality of blades and a support disk connected to the blades for supporting the plurality of blades. The outer diameter of the support disk is D1, and the diameter of the plurality of blades is The outer diameter is D2, and D1>D2. Due to the inconsistency of the outer diameter of the cross-flow impeller in the axial direction, the distance between the support disc and the air duct is smaller than the distance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/26
CPCF04D29/281F04D29/667
Inventor 邹建煌曹雷刘中杰黄美玲马重夫
Owner GREE ELECTRIC APPLIANCES INC
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