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Oscillating air flow combined type fan blade with low noise

A low-noise, composite technology, applied in non-variable pumps, components of pumping devices for elastic fluids, machines/engines, etc., can solve the problem of increasing fan speed, increasing power consumption and noise, and not complying with environmental protection The trend and requirements of the company, to achieve the effects of accelerating heat transfer, reducing operating noise, and reasonable structure

Inactive Publication Date: 2007-08-01
赵汉高
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, increasing fan speed and air volume will increase power consumption and noise, which does not meet the trend and requirements of environmental protection

Method used

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  • Oscillating air flow combined type fan blade with low noise

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Experimental program
Comparison scheme
Effect test

Embodiment

[0009] Embodiment: It can be clearly seen from Fig. 1 that this is an oscillating air flow low-noise composite fan blade used by a radiator. Composition towards blade 3. The wheel hub 1 is provided with a motor assembly assembly cavity; the four forward blades 2 are equidistantly arranged on the periphery of the wheel hub 1; the reverse blades 3 are respectively symmetrically arranged on the periphery of the wheel hub 1 between the forward blades 2 .

[0010] The air supply principle of the oscillating airflow low-noise composite fan blades: when the blades rotate, the reverse blades and forward blades arranged on the periphery of the hub also rotate synchronously, and the two sets of blades with the windward curved surfaces facing oppositely cut the air respectively. The lift works, and the two kinds of wind pressure and flow in the opposite direction are discharged axially. The two airflows collide with each other during the discharge process, forming the oscillating output...

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Abstract

The invention relates to a vibration airflow low-noise composite blade of fan, comprising hub and even blades distantly arranged on the edge of hub. The invention is characterized in that: each blade is symmetry arranged with reverse blade, to utilize their reverse airflow to impact the positive blade, to output vibrated worm which can be used to cool and radiate heat of radiating plate. The generated vibrated airflow can impact the stable air film at the face of radiating plate to accelerate the heat transmission and improve the radiating efficiency, with low cost.

Description

technical field [0001] The invention relates to a fan component, in particular to a composite fan blade with oscillating air flow and low noise. Background technique [0002] The fan is a kind of air supply device, and the wind output by it can accelerate the flow of air and have the effect of heat dissipation. The most commonly used is an axial flow fan that discharges pressure airflow in the axial direction. The blades of the axial flow fan usually consist of a wheel hub and blades arranged at equal intervals on the periphery of the wheel hub. When the fan blade rotates, the blades arranged on the periphery of the hub perform work on the gas by cutting wind and lifting force, and the generated wind pressure and flow are discharged axially. Therefore, it can cool and dissipate heat from objects placed on its front or back. At present, most of the cooling and heat dissipation of electrical equipment such as computers are axial flow fans, especially on the combined products...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/38
Inventor 赵汉高
Owner 赵汉高
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