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Axial fan for cooling electronic component

A technology of electronic components and axial flow fans, applied to pump components, components of pumping devices for elastic fluids, instruments, etc., can solve problems such as limited cooling performance

Inactive Publication Date: 2009-11-18
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the traditional axial fan has great limitations in cooling performance and has great potential for development

Method used

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  • Axial fan for cooling electronic component
  • Axial fan for cooling electronic component
  • Axial fan for cooling electronic component

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Embodiment Construction

[0008] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0009] see figure 1 , the present invention includes a hub 1 located at the center of the fan main body and a main blade 2 fixed on the outside of the hub 1, and a square attachment blade 3 is also arranged on the hub 1, and the attachment blade 3 is 16 mm long, 6 mm wide, and 1.6 mm thick. Except for the edges attached to both sides of the hub 1 and the trailing edge of the main blade 2, the other sides of the attached blade 3 are trimmed to be as smooth as possible. The length of the attached blade 3 with a total length of 16 mm on the central hub 1 is 10 mm, and the length on the trailing edge of the main blade 3 is 6 mm. Since the attached blades 3 are arranged on the central hub 1, the weight of the present invention is increased by 15%. Since the DC voltage driving the axial fan remains unchanged (12DCV), the speed of the fan is correspondingly reduce...

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PUM

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Abstract

An axial flow fan for heat dissipation of electronic components, comprising a hub located in the center of the fan main body and a main blade fixed outside the hub, an attached blade is also arranged on the hub, one end of the attached blade is fixedly connected to the hub, The other end is fixedly connected with the trailing edge of the main blade. Because the present invention improves the heat exchange in the downstream area of ​​the axial flow motor by adding small fan blades to the central hub of the fan, thereby greatly improving the efficiency of the radiator. Compared with the traditional fan, the central hub of the fan is equipped with attached blades. Under the same input power, the overall cooling performance of the impact substrate of the present invention is about 10% higher than that of the traditional axial flow fan.

Description

technical field [0001] The invention relates to an axial flow fan, in particular to the technical field of an axial flow fan applied to heat dissipation of electronic components. technical background [0002] Axial flow fans have stable and reliable performance and price advantages, and have been widely used in cooling systems of electronic equipment for a long time, such as: central processing unit (CPU) cooling systems, generally composed of axial flow fans and aluminum fins The heat sink acts as a heat sink unit consisting of the extended surface of the CPU. A finned heat sink structure is installed on the upper surface of the heat source (CPU). The substrate connected to the CPU (the CPU occupies approximately 13% of the entire substrate area) usually uses materials with a high heat transfer coefficient, such as aluminum and copper. On the air side, the axial flow fan drives the cooling medium (air) into the narrow channel of the finned radiator, and the plane of the f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/38F04D25/08G06F1/20
CPCF04D29/384
Inventor 金东范卢天健
Owner XI AN JIAOTONG UNIV
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