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Cooling fan and its fan blades

A technology for cooling fans and fan blades, which is applied in the fields of instruments, electrical digital data processing, and digital data processing components, etc., can solve the problems of increased noise of cooling fans, etc.

Inactive Publication Date: 2012-09-19
FU ZHUN PRECISION IND SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The air volume of the cooling fan has a great influence on increasing the cooling effect of the cooling module. The existing methods of increasing the air volume of the cooling fan generally include increasing the blade size or increasing the speed of the cooling fan. Causes increased cooling fan noise

Method used

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  • Cooling fan and its fan blades
  • Cooling fan and its fan blades
  • Cooling fan and its fan blades

Examples

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Embodiment Construction

[0013] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0014] Such as figure 1 As shown, the cooling fan 10 includes a base 12 , an upper cover 14 covering the base 12 , and a stator (not shown) and fan blades 16 located between the base 12 and the upper cover 14 .

[0015] The fan blade 16 includes a hub 162 and a plurality of blades 164 radially extending from a periphery of the hub 162 . The fan blade 16 is accommodated in the accommodation space formed by the base 12 and the upper cover 14 and rotates counterclockwise.

[0016] Please also refer to figure 2 The blade 164 has a windward surface 164 a and a leeward surface 164 b opposite to the windward surface 164 a, the windward surface 164 a and the leeward surface 164 b are asymmetrically arranged on both sides of the central plane of the blade 164 .

[0017] The windward surface 164 a of the blade 164 is a forward-inclined surface, a...

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Abstract

The invention relates to a radiator fan, which comprises a base, an upper cover, rotors and fan blades, wherein the base is covered by the upper cover. The rotors and the fan blades are positioned between the base and the upper cover. The fan blades comprise wheel hubs and a plurality of blades radially distributed on the circumstances of the wheel hubs. Each blade is provided with a windward side and a leeward side opposite to the windward side. The windward side is provided with a procline surface or a plane surface and the leeward side is provided with a plane surface or a retroversion surface. The windward side and the leeward side are of different types. The windward side and the leeward side are asymmetrically arranged on the two sides of the central planes of the blades. The radiator fan utilizes the different characteristics of the windward side and the leeward side to generate higher wind rate and lower noise during running.

Description

technical field [0001] The invention relates to a cooling fan, in particular to a fan blade of the cooling fan. Background technique [0002] With the rapid development of the computer industry, the pursuit of high speed CPU, high functionality and miniaturization have caused more and more serious heat dissipation problems, which are more prominent in electronic devices with small internal spaces such as notebook computers. If the heat generated by the electronic components such as the CPU in the notebook computer cannot be dissipated in a timely and effective manner, the performance of the electronic components will be greatly affected, and the service life of the electronic components will also be reduced. Therefore, the electronic components must be dissipated. [0003] At present, in a computer, a heat dissipation module composed of a heat conductor, a heat pipe, a heat sink, and a heat dissipation fan is often used to dissipate heat from electronic components. The heat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/30F04D25/08G06F1/20
Inventor 黄清白赵志辉林然
Owner FU ZHUN PRECISION IND SHENZHEN
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