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Fan impeller

A technology of fan impeller and fan blades, which is applied to components of pumping devices for elastic fluids, non-variable pumps, machines/engines, etc. It can solve problems such as affecting heat dissipation efficiency and reducing fan air volume, and achieves reduction The effects of wind shear, improved stability, and better heat dissipation

Inactive Publication Date: 2009-02-18
SUNONWEALTH ELECTRIC MACHINE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But after the negative pressure zone of above-mentioned fan impeller sucks the air of its periphery, the air sucked by the upper and lower sides of fan blade 11 respectively can form turbulent flow zone 14 at the leeward surface 13 end of fan blade 11, and the turbulent flow zone The airflow inside 14 produces eddy currents and noise due to the continuous impact and offset effect, which reduces the air output of the fan and affects the heat dissipation performance

Method used

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Embodiment Construction

[0019] In order to describe in detail the structure, features and effects of the present invention, the following preferred embodiments are now described as follows in conjunction with the accompanying drawings:

[0020] Such as Figure 4 , Figure 5 As shown, the fan impeller provided by the embodiment of the present invention includes:

[0021] A hub 20, the periphery of the hub 20 is surrounded by a plurality of radially arranged fan blades 21, wherein the fan blades 21 can be one of axial flow fan blades or blower fan blades, and a drum fan blade is shown in the figure Fan blades.

[0022] Each fan blade 21 has a windward surface 22 and a leeward surface 23, and the leeward surface 23 is provided with at least one air guide part 24, and the preferred position of the air guide part 24 is near the outer edge end of the fan blade 21. , and set in a horizontal direction with the radial direction of the fan impeller, so that the leeward surface 23 of the fan blade 21 is divi...

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Abstract

The invention relates to a fan impeller which comprises a wheel hub; the periphery of the wheel hub is extended to have a plurality of vanes which are arranged around the wheel hub; each vane is provided with a windward surface and a leeward surface; wherein, at least more than one diversion part is arranged on the leeward surface. Accordingly, when the air is sucked from the upper and lower sides of the vanes, the heat dissipation efficiency loss caused by the mutual impact of the airflows is avoided under the dispersion and diversion effects of the diversion part.

Description

technical field [0001] The invention relates to an impeller of a fan, in particular to a fan impeller with functions of diverting and guiding airflow, which can improve the turbulent flow near the leeward side of a conventional fan blade, reduce air resistance, and improve air output and fan efficiency. Background technique [0002] Such as figure 1 , figure 2 As shown, a conventional fan impeller includes a hub 10 , and a plurality of radially arranged fan blades 11 extend around the hub 10 . When the fan impeller is driven by a motor (not shown in the figure), the air around it will be driven to form a flow field due to the rotation of the fan impeller. [0003] Another example figure 2 , image 3 As shown, each fan blade 11 of the fan impeller has a windward surface 12 and a leeward surface 13 . When the fan impeller rotates, the air is pushed by the windward side 12 of the fan blade 11, causing the pressure near the leeward side 13 of the fan blade 11 to drop sudd...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/30
Inventor 洪银树李明聪
Owner SUNONWEALTH ELECTRIC MACHINE IND