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Fan blades, fan assembly, air duct part and air conditioner

A technology of air duct components and air duct parts, which is applied in the fields of fan components, fan blades, air duct components and air conditioners, can solve the problems of reverse flow, large volume and poor air exhaust effect, and avoid being exposed to the inside of the air duct. , Reduce the overall volume, reduce the effect of wind noise

Pending Publication Date: 2019-06-07
GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some fans have large air volume and low noise at the same speed, but the wind pressure is very small. In the case of high resistance at the rear end of the air outlet, the exhaust effect is poor or even reverse flow occurs. Big size

Method used

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  • Fan blades, fan assembly, air duct part and air conditioner
  • Fan blades, fan assembly, air duct part and air conditioner
  • Fan blades, fan assembly, air duct part and air conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0097] In this embodiment, in the direction of the axis of rotation of the hub 91, the height of the blade 92 is H, and the point on the blade 92 farthest from the axis of rotation of the hub 91 is located on a reference circle whose diameter is D1. In order to test the influence of H and D1 on the air volume and noise of the air conditioner 9100, take D1=360mm, 800 square air volume as an example to test, the experiment is as follows:

[0098] Table 1

[0099]

[0100]

[0101] It can be seen from the above table that when 0.05≤H / D1≤0.5, the air outlet noise of the air conditioner 9100 is small and the energy consumption is low. When 0.05≦H / D1≦0.5, the volume of the fan blade 9 can also be reduced.

Embodiment 2

[0103] In this embodiment, in the direction of the axis of rotation of the hub 91, the height of the blade 92 is H, and the point on the blade 92 that is farthest from the axis of rotation of the hub 91 is located on the reference circle, and the diameter of the reference circle is D1. The vertical distance between the first fan assembly 9101 and the second fan assembly 9102 is L4. In order to test the influence of L4 on the noise of the air conditioner 9100, take D1=360mm, H=44mm, 1200 square air volume as an example to test, the experiment is as follows:

[0104] Table 2

[0105]

[0106] It can be seen from the above table that when 0.025≤L4 / D1≤0.16, the air outlet noise of the air conditioner 9100 is small and the energy consumption is low.

Embodiment 3

[0108] In this embodiment, in the direction of the axis of rotation of the hub 91, the height of the blade 92 is H, and the point on the blade 92 that is farthest from the axis of rotation of the hub 91 is located on the reference circle, and the diameter of the reference circle is D1. The minimum distance between 92 and the motor support 921 is L3.

[0109] In order to test the influence of L3 on the noise of the air conditioner 9100, take D1=360mm, H=44mm, 1200 square air volume as an example to test, the experiment is as follows:

[0110] table 3

[0111]

[0112] For L3, it has been verified by theory and test that the smaller L3 is, the greater the air volume of the fan assembly at the same speed, and the lower the fan noise is at the same air volume. However, considering the possible errors or deformations in assembly, transportation and fan operation, in order to To avoid interference between the blades and the inner wall of the air duct, L3 should not be too large ...

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Abstract

The invention discloses fan blades, a fan assembly, an air duct part and an air conditioner. The fan blades comprise a hub and a plurality of blades, wherein a mounting cavity is formed in the hub soas to accommodate at least a part of a motor, and the blades are arranged on the outer peripheral wall of the hub. According to the fan blades, the mounting cavity is formed in the hub for accommodating the motor, the overall volume of the fan blades and the motor after the fan blades and the motor assembled can be reduced, excessive exposure of the motor to the interior of the air duct can be avoided as well, so that the air outlet noise can be reduced, and the air outlet amount can be improved.

Description

technical field [0001] The invention relates to the field of air treatment, in particular to a fan blade, a fan assembly, an air duct component and an air conditioner. Background technique [0002] At present, there are many types of fans generally used in the home appliance industry, and each type of fan has its unique characteristics. Some fans have large air volume and low noise at the same speed, but the wind pressure is very small. In the case of high resistance at the rear end of the air outlet, the exhaust effect is poor or even reverse flow occurs. Big size. On the premise of not reducing the air output of the fan, how to reduce the air outlet noise of the fan and reduce the volume of the fan is a technical problem that needs to be solved urgently. Contents of the invention [0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present invention is to provide a fan blade, which h...

Claims

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Application Information

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IPC IPC(8): F04D29/38F04D29/32F04D29/66F04D25/08F04D19/00F04D29/52F24F1/0033F24F1/0018F24F13/02F24F13/24
Inventor 汪先送陈良锐张滔袁宏亮蔡序杰
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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