Airflow commutating device and serial fan

A rectifying device, series technology, applied in pump devices, components of pumping devices for elastic fluids, non-variable-capacity pumps, etc. Improve overall efficiency, improve efficiency, increase the effect of air pressure and air volume

Active Publication Date: 2008-06-25
DELTA ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the airflow is guided to the downstream fan 12 by the vane 113, the airflow is guided to the low-pressure area L of the fan blade 1221, so that the pressure difference between the high-pressure area H and the low-pressure area L of the fan blade 1221 becomes smaller, Moreover, the airflow guided by the stator blades 113 is almost perpendicular to the blade shape of the fan blades 1221, rather than parallel. These factors have greatly reduced the efficiency of the downstream fan 12, and therefore reduced the output air pressure and air volume of the fans connected in series. while affecting performance

Method used

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  • Airflow commutating device and serial fan
  • Airflow commutating device and serial fan
  • Airflow commutating device and serial fan

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Embodiment Construction

[0027] An airflow rectifying device and a serial fan according to preferred embodiments of the present invention will be described below with reference to the relevant drawings, wherein the same components will be described with the same reference symbols.

[0028] Please refer to Figure 4 A tandem fan 2 in a preferred embodiment of the present invention includes two fans 21 , 22 and an airflow rectifying device 23 . Wherein, the fans 21 and 22 are arranged in series with the same direction of rotation (as shown by the arrows in the figure). The airflow rectifying device 23 is connected between the fans 21 and 22, and has a body 231 and a plurality of rectifying sheets 232, and one end of the rectifying sheet 232 is connected to the body 231; in addition, the airflow rectifying device 23 also includes a connecting portion 233, and the rectifying sheet The other end of 232 is connected with the connecting portion 233; the rectifying pieces 232 in this embodiment can be arrang...

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Abstract

The invention provides an airflow rectification device which is connected between two fans with the same steering direction. The invention comprises a body and a plurality of rectifier cells, wherein, the rectifier cells are connected with the body; each rectifier cell corresponds with a stator blade of an upstream fan to form a whole guide component. The invention also discloses a serial fan with the airflow rectification device.

Description

technical field [0001] The present invention relates to an airflow rectifying device and a serial fan, in particular to an airflow rectifying device and a serial fan for improving series performance. Background technique [0002] With the rapid development of electronic products towards high performance, high frequency, high speed and thinness, the heating temperature of electronic products is getting higher and higher, which is prone to instability and affects product reliability. Therefore, heat dissipation has become an important aspect of electronic products. It is one of the important issues of the present invention, and using a fan as a heat dissipation device is a common structural setting, wherein in order to enhance the heat dissipation performance, multiple fans can be connected in series. [0003] Please refer to figure 1 , a traditional serial fan 1 is composed of an upstream fan 11 and a downstream fan 12 connected in series. Wherein, the upstream fan 11 has a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/54F04D25/16
Inventor 林玮义林俊印颜承伟黄庆祥
Owner DELTA ELECTRONICS INC
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