Axial flow fan and outdoor unit for air conditioner

An axial flow fan technology, applied in axial flow pumps, air conditioning systems, components of pumping devices for elastic fluids, etc., can solve the problem that the noise of the axial flow fan 10 is not effectively reduced, and achieve noise reduction , less noise, and increased flow rate

Active Publication Date: 2012-07-04
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Despite these attempts, the noise of the axial flow fan 10 has not been effectively reduced, or if the noise of the axial flow fan 10 has been reduced, the air velocity through the axial flow fan 10 has also been reduced.

Method used

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  • Axial flow fan and outdoor unit for air conditioner
  • Axial flow fan and outdoor unit for air conditioner
  • Axial flow fan and outdoor unit for air conditioner

Examples

Experimental program
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Embodiment Construction

[0028] Hereinafter, an axial fan according to the present embodiment will be described in detail with reference to the accompanying drawings.

[0029] image 3 is a plan view showing the axial fan 20 according to the present embodiment, and Figure 4 is a schematic side view showing the axial fan 20 according to the present embodiment.

[0030] refer to image 3 and Figure 4 , the axial fan 20 includes a hub 21 and a plurality of blades 23 . The hub 21 has a nearly cylindrical shape. A rotation shaft (not shown) is coupled to the hub 21 to rotate the axial fan 20 . Basically, the rotation shaft is coupled to the center A2 of the hub 21 . The blades 23 are provided on the outer surface of the hub 21 . Based on the direction of rotation of the blade 23 , the blade 23 comprises: a front edge 24 ; a rear edge 25 ; and a tip 26 forming the outside edge of the blade 23 . If the blades 23 rotate, the air flows in the direction of the rotation axis.

[0031] The shortest dis...

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PUM

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Abstract

Provided are an axial flow fan and an air conditioner outdoor unit including the axial flow fan. The axial flow fan includes a hub and blades disposed on an outer surface of the hub. Each of the blades satisfies that a shortest distance measured from an imaginary line (L2) passing through a center of the hub to a front end of an outer edge of the blade is greater than a shortest distance measured from the imaginary line (L2) to a rear end of the outer edge of the blade. The front end of the outer edge of the blade is a leading end in a rotation direction of the blade, and the rear end of the outer edge of the blade is a trailing end in the rotation direction of the blade. Owing to the shape of the blade, noise can be reduced while increasing the flowrate of air.

Description

technical field [0001] The invention relates to an axial flow fan and an air conditioner outdoor unit comprising the axial flow fan. Background technique [0002] An air conditioner is a home appliance that cools and / or heats an indoor area by utilizing a refrigerant that circulates in a heat exchange cycle. A split system air conditioner consists of an indoor unit and an outdoor unit. Components for the heat exchange cycle, such as an outdoor heat exchanger and a compressor, are provided in the outdoor unit. [0003] In addition, a fan is provided in the outdoor unit to blow air, thereby facilitating heat exchange between the outdoor heat exchanger and outdoor air. Typically, an axial fan is used as the fan here. Air flows in the direction of the axis of rotation of the axial fan. [0004] Hereinafter, a related art axial fan will be described in detail with reference to the accompanying drawings. [0005] figure 1 is a plan view showing a prior art axial flow fan 10,...

Claims

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Application Information

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IPC IPC(8): F04D29/32F04D29/38F24F1/38
CPCF04D29/384F04D29/666F04D19/002F04D29/38F24F1/0029F24F1/38
Inventor 朴正宅许德
Owner LG ELECTRONICS INC
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