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Centrifugal fan with axial flow direction

A technology of centrifugal fan and axial flow direction, which is applied to the components of pumping device for elastic fluid, radial flow pump, non-variable-capacity pump, etc. And other issues

Active Publication Date: 2016-08-17
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rotating area of ​​the fan blade 21 of the axial flow fan 20 is equal to the cross-sectional area of ​​its channel. If components are installed within this range, the flow field will be hindered. Therefore, the preferred electronic component installation position in the casing 10 is the center of the axial flow fan 20 However, the volume of the fan hub 22 of the general axial flow fan 20 is not large, and the installation space of the electronic components in the casing 10 is limited.
To achieve channel optimization, it is necessary to configure a larger axial flow fan 20 to obtain a larger fan hub 22 area; if an axial flow fan 20 of a general size is configured, the channel will be blocked by electronic components

Method used

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  • Centrifugal fan with axial flow direction
  • Centrifugal fan with axial flow direction
  • Centrifugal fan with axial flow direction

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Embodiment Construction

[0051] see image 3 and Figure 4 , the first embodiment of the present invention provides a centrifugal fan with an axial flow direction, which includes a centrifugal fan wheel 100 , a casing 200 and a fixing seat 300 .

[0052] see Figure 3 to Figure 5 , the centrifugal fan wheel 100 includes a rotor core structure 110 and a plurality of centrifugal fan blades 120 . The rotating core structure 110 includes a fan hub 111 and a bottom plate 113. The fan hub 111 is preferably a cylindrical casing (but the invention is not limited to this, for example, the fan hub 111 can also be a conical casing), and the fan hub 111 is preferably a cylindrical casing. The inner side of the hub 111 has a rotating shaft 112, and the rotating shaft 112 is preferably arranged along the axial direction of the fan hub 111; the centrifugal fan wheel 100 rotates along the rotating shaft 112 toward a forward rotation direction D1; Extending along the radial direction of the fan hub 111 (or the rota...

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Abstract

A centrifugal fan with an axial flow direction, which includes a centrifugal fan wheel and a casing. The centrifugal fan wheel has a rotating core structure and a plurality of centrifugal fan blades arranged around it. The inner side of the casing has an annular air guide surface, which surrounds the rotating core structure and shields the centrifugal fan blades. The air guide surface converts the centrifugal airflow around the centrifugal fan blade into axial flow airflow.

Description

technical field [0001] The present invention relates to a centrifugal fan, in particular to a centrifugal fan with an axial flow direction. Background technique [0002] Fans are common components in heat dissipation engineering. Common types of fans are centrifugal fans and axial fans. The channel structure of the two is as follows: the centrifugal fan enters the air along the axial direction of the fan wheel and discharges the air along the tangential direction of its rotation; the axial flow fan enters and exits the air along the axial direction of the fan wheel. The flow field characteristics of the two are: the static pressure of the centrifugal fan flow field is large, but its flow rate is small; the static pressure of the axial flow fan flow field is small, but its flow rate is large. [0003] Different types of fans need to be installed for different device spaces. For example, small and flat spaces such as portable electronic devices are suitable for centrifugal fa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D17/08F04D29/44
CPCF04D17/165F04D25/0613F04D29/281F04D29/4253
Inventor 熊世康陈弘琪陈孟钰
Owner DELTA ELECTRONICS INC