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Cooling device and its centrifugal fan

A technology of centrifugal fan and fan frame, which is applied to components of pumping devices for elastic fluids, cooling/ventilation/heating transformation, non-variable pumps, etc., and can solve problems such as increased noise of heat dissipation modules

Inactive Publication Date: 2016-04-27
FURUI PRECISE COMPONENT (KUNSHAN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the airflow leaves the air outlet of the centrifugal fan, the airflow generally advances along the tangent direction to the outer edge of the impeller, so that part of the airflow enters the cooling fin group and forms an included angle with the cooling fin group there, and this part The airflow collides with the heat dissipation fins here, resulting in an increase in the noise of the heat dissipation module

Method used

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  • Cooling device and its centrifugal fan
  • Cooling device and its centrifugal fan
  • Cooling device and its centrifugal fan

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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the embodiments with reference to the accompanying drawings.

[0038] Please refer to figure 1 and figure 2 , the heat dissipation device 100 according to an embodiment of the present invention includes a centrifugal fan 10 and a heat dissipation fin set 20 . The cooling fin set 20 is thermally connected with a heating electronic component (not shown) to absorb the heat generated by the heating electronic component. The heat is dissipated into the surrounding air.

[0039] The centrifugal fan 10 includes a base 11 , a top plate 12 disposed on the base 11 , and an impeller 14 having a plurality of fan blades 13 . The base 11 and the top plate 12 enclose a receiving space 15 , and the impeller 14 is disposed in the receiving space 15 . The impeller 14 runs counterclockwise when the centrifugal fan 10 works.

[0040] The base 11 includes a bottom plate 111 and a sidewall 112 extending upward fr...

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PUM

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Abstract

The invention relates to a radiating device which comprises a centrifugal fan and a radiating fin set, wherein the radiating fin set is arranged at the air outlet of the centrifugal fan; the centrifugal fan comprises a fan frame and an impeller with a plurality of fan blades; the impeller is contained in the fan frame; one side of the fan frame is provided with the air outlet; the air outlet is provided with an air near end and an air far end opposite to the air near end; the impeller drives the air flow to flow out of the air near end and the air far end of the air outlet; the air far end of the air outlet of the fan frame is provided with a guiding part; the guiding part extends curvedly from the edge of the air outlet to the inside of the fan frame and the side on which the air near end is positioned; and the radiating fin set is composed of a plurality of radiating fins, and the outer end of the guiding part is parallel with the radiating fins.

Description

technical field [0001] The invention relates to a cooling device, in particular to a centrifugal fan of the cooling device. Background technique [0002] At present, in a computer, a heat dissipation module composed of a heat pipe, a heat dissipation fin set, and a centrifugal fan is often used to dissipate heat from the heat-generating electronic components. The heating electronic component transfers heat to the cooling fin group through the heat pipe, and the cooling fin group is arranged at the air outlet of the centrifugal fan. The airflow generated by the centrifugal fan blows to the cooling fin group and exchanges heat with the cooling fin group, thereby dissipating the heat. Therefore, the centrifugal fan plays an extremely important role in the cooling module. [0003] A traditional centrifugal fan includes a fan frame and an impeller accommodated in the fan frame. The fan frame is provided with an air outlet, and the impeller drives airflow to blow out from the ai...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/44H05K7/20
Inventor 欧昆应刘智仁
Owner FURUI PRECISE COMPONENT (KUNSHAN) CO LTD