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Axial flow rotor and air conditioner

An axial-flow wind and hub technology, which is applied to the components of pumping devices for elastic fluids, non-variable-capacity pumps, pump components, etc., can solve the problems of weakened wind rotor strength, increased fan noise, and easy breakage.

Active Publication Date: 2020-08-25
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the design of the existing wind rotor, in order to reduce the weight of the wind rotor and reduce the load of the fan, the blade is designed as a single circular arc of equal thickness, and the blade cross section does not use the airfoil. Although this reduces the weight of the wind rotor and the load of the motor, the fan The noise increases, the strength of the wind rotor also weakens, and the blades of the wind rotor are easy to break due to insufficient strength

Method used

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  • Axial flow rotor and air conditioner
  • Axial flow rotor and air conditioner
  • Axial flow rotor and air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] figure 1 A schematic structural view of an axial flow wind wheel according to an embodiment of the present invention is shown; figure 2 show figure 1 The rear view of the axial flow rotor; image 3 show figure 1 The top view of the axial flow rotor; Figure 4 show figure 1 The front view of the axial flow rotor; Figure 5 A graph showing the noise test results when the axial-flow wind rotor rotates according to an embodiment of the present invention is shown.

[0041] Such as figure 1 As shown, an axial wind rotor according to an embodiment of the present invention includes: a hub 10; at least one blade 20 fixed to the side wall of the hub 10, each blade 20 includes: a leading edge 202, a trailing edge 204 and a front edge 202; The outer peripheral edge 206 connecting the edge 202 and the trailing edge 204 , wherein the trailing edge 204 of each blade 20 has a recessed structure 208 recessed towards the leading edge 202 of the blade 20 . The hub 10 is connected...

Embodiment 2

[0052] Figure 6 show figure 1 A cross-sectional view of an axial flow rotor.

[0053] Such as Figure 6 As shown, on the basis of including all the technical features of Embodiment 1, according to an axial-flow wind rotor according to an embodiment of the present invention, the hub 10 includes in sequence along the direction from the suction surface to the pressure surface: a first shaft hole 102, a first shaft The axis of the hole 102 is collinear with the axis of the hub 10; the second shaft hole 104, the axis of the second shaft hole 104 is collinear with the axis of the hub 10, wherein the axial length of the first shaft hole 102 is the same as that of the second shaft hole 104 The sum of the axial lengths of is less than the axial length of the hub 10, and the diameter d1 of the first shaft hole 102 is greater than the diameter d2 of the second shaft hole 104.

[0054] From the suction side of the hub 10 to the pressure side, the axis of the hub 10 includes two shaft ...

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Abstract

The invention provides an axial-flow wind wheel and an air conditioner. The axial-flow wind wheel comprises a hub and at least one blade fixed to the side wall of the hub. Each blade comprises a frontedge, a tail edge and an outer periphery connected with the front edge and the tail edge. The tail edge of each blade is provided with a concave structure which is concave towards the front edge of the corresponding blade. By adoption of the technical scheme, wake vortexes can be further reduced, so that vortex noise is lowered, and accordingly noise generated when the axial-flow wind wheel rotates is lowered.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an axial flow wind wheel and an air conditioner. Background technique [0002] At present, due to the large air volume, low noise and low pressure, the axial flow wind wheel is widely used in air conditioners and various ventilation and heat dissipation environments. The design of the axial flow wind wheel has a great influence on the efficiency and noise of the fan. The improvement of energy efficiency of air conditioners requires higher efficiency of fans used for heat dissipation, requiring low noise and high efficiency of wind wheels. In the design of the existing wind rotor, in order to reduce the weight of the wind rotor and reduce the load of the fan, the blade is designed as a single circular arc of equal thickness, and the blade cross section does not use the airfoil. Although this reduces the weight of the wind rotor and the load of the motor, the fan As the n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/32F04D29/38F04D29/66
CPCF04D29/325F04D29/384F04D29/388F04D29/667
Inventor 李跃飞王其桢詹镇江
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD