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Blade structure

A fan blade and blade technology is applied in the field of fan blade structure of cooling fans, which can solve the problems of increased fan noise and discomfort, and achieve the effects of noise control and turbulence reduction.

Inactive Publication Date: 2009-02-04
FU ZHUN PRECISION IND SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the fan speed is increased, the noise generated by the fan will be greatly increased, and the users who are located near the fan will feel uncomfortable or even unbearable.

Method used

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Embodiment Construction

[0012] Such as figure 1 As shown, the fan blade structure 10 of the present invention is used to be installed in a heat dissipation fan (not shown), which includes a hub 20 and a plurality of blades 30 extending outward from the periphery of the hub 20 .

[0013] The hub 20 includes a circular plate 22 and an annular wall 24 vertically extending upward from a periphery of the circular plate 22 . The middle portion of the circular plate 22 protrudes upwards to form a joint portion 26 . The cross-sectional area of ​​the joint portion 26 gradually decreases from bottom to top, thereby forming a tapered structure. A circular concave hole (not shown) is recessed downwards on the upper surface of the joint portion 26 , through which the rotating shaft (not shown) of the fan penetrates, so that the fan blade structure 10 rotates around the rotating shaft to generate air flow.

[0014] The blades 30 are radially combined with the annular wall 24 of the hub 20 and are evenly distribu...

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Abstract

A fan vane structure is used for being arranged in a heat radiating fan and includes a hub as well as a plurality of vanes combined to the hub; the vanes are arranged in the surrounding of the hub and the heights of at least two vanes are not equal. Compared with the prior art, the fan vane structure of the invention has the vanes at least the heights of two of which are different, thus being capable of generating a flow guidance effect when the fan rotates, thereby reducing turbulence and leading the noise of the fan to be controlled.

Description

technical field [0001] The invention relates to a fan blade structure, in particular to a fan blade structure used for a cooling fan. Background technique [0002] In recent years, with the development of the electronics industry, the performance of electronic components has been continuously improved, and the calculation speed has become faster and faster. The calculation speed of the internal chipset has been continuously improved, the number of chips has continued to increase, and the heat emitted by the chips has also increased accordingly. If If the heat is not dissipated in time, the performance of the electronic components will be greatly affected, and the computing speed of the electronic components will be reduced. As the heat continues to accumulate, the electronic components may be burned, so the electronic components must be dissipated. [0003] For this reason, a heat dissipation fan is usually installed near the electronic components, and the airflow generated ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/30
CPCF04D29/30F04D29/281F04D29/666
Inventor 黄清白张杰林然
Owner FU ZHUN PRECISION IND SHENZHEN
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