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Fan vane unit of centrifugal fan

A technology of centrifugal fans and fan blades, which is applied in the direction of electrical components, instruments, electrical digital data processing, etc., and can solve problems such as lowering, different inflow conditions, and increased fan noise

Active Publication Date: 2007-10-17
ASIA VITAL COMPONENTS SHENZHEN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the above-mentioned fan blades 12 are linear in their axial direction, and the wind pressures that can be generated in the first through hole 131 and the second through hole 141 should be the same when fluid is sucked in. However, in practical applications, there are The problem is that when the fluid flows in from the first through hole 131 and the second through hole 141, the inflow conditions of the first through hole 131 and the second through hole 141 are different (for example, the second through hole 141 is provided with several supporting ribs). ), when the impedance at the outlet 16 is slightly higher, the fluid will not completely flow out from the outlet 16, and the fluid that fails to flow out will flow back through the first through hole 131 or the second through hole 141, which not only reduces the first The amount of the inflowing fluid at the through hole 131 or the second through hole 141, and the counterflow fluid will also collide with the inflowing fluid to increase the noise of the fan

Method used

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  • Fan vane unit of centrifugal fan
  • Fan vane unit of centrifugal fan
  • Fan vane unit of centrifugal fan

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Embodiment Construction

[0031] The present invention provides a fan blade unit of a centrifugal fan. The accompanying drawings are preferred embodiments of the present invention. Please refer to FIG. 6 and FIG. 7 for the first preferred embodiment of the present invention. As shown in the figure, it at least includes a hub 21 and several fan blades 22, these fan blades 22 are connected around the hub 21, and each fan blade 22 has a root portion 221, a first blade portion 222, and a second blade portion 223, and one end of the root portion 221 is connected to Around the hub 21, the other end extends outwards to the first blade portion 222 and the second blade portion 223 respectively, and in this preferred embodiment, the number of the first blade portion 222 and the second blade portion 223 are the same and have different shapes. The connecting shape is axially arranged, that is, the first blade portion 222 and the second blade portion 223 are arranged in an up-and-down positional relationship, and th...

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PUM

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Abstract

The invention relates to a flabellum unit of a centrifugal fan, which at least comprises a hub and a plurality of flabellum spread around the hub, wherein each flabellum of the plurality of flabellum has a first leaf and a second leaf which can connect with each other or not.

Description

technical field [0001] The invention relates to a blade unit of a centrifugal fan, in particular to a blade structure of a centrifugal fan for heat dissipation. Background technique [0002] Taiwan's semiconductor and information industries have grown rapidly in recent years, and many of their products are in the leading position in the world. With the advancement of technology, products are gradually evolving towards high performance, high frequency, high speed, and thinner and thinner. Chips The miniaturization of the size has resulted in higher and higher heat density of electronic components, and electronic products operating at high temperatures are prone to instability. Therefore, whether the heat can be properly removed has become one of the keys to the success of product development. [0003] In the past, due to the small heat generated by the computer, the requirements for the cooling system were not high. Now the computer has faster calculation speed and powerful f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F1/20H01L23/467
Inventor 张柏灏严润杰
Owner ASIA VITAL COMPONENTS SHENZHEN CO LTD