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Fin assmebly and heat dissipation device using the same

a technology of fins and heat dissipation devices, which is applied in the direction of basic electric elements, semiconductor devices, lighting and heating apparatus, etc., can solve the problems of low utilization efficiency of airflow and huge airflow at the two ends of air outlets

Inactive Publication Date: 2013-03-21
HON HAI PRECISION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present disclosure relates to a heat dissipation device that includes a fan and a fin assembly. The device aims to improve the efficiency of airflow utilization and the dissipation of heat from the fin assembly. The technical effect of the invention is to enhance the heat dissipation efficiency of the device by optimizing the airflow and reducing the difference of airflow at two ends of the air outlet.

Problems solved by technology

However, a difference of an amount of the airflow at two ends of the air outlet is huge, and thus a utilization efficiency of the airflow is low.

Method used

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  • Fin assmebly and heat dissipation device using the same
  • Fin assmebly and heat dissipation device using the same
  • Fin assmebly and heat dissipation device using the same

Examples

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Embodiment Construction

[0011]FIGS. 1, 2 and 3 show a heat dissipation device 100 in accordance with an exemplary embodiment. The heat dissipation device 100 includes a fan 10, and a fin assembly 20 adjacent to the fan 10.

[0012]The fan 10 includes a casing 12, and an impeller 14 received in the casing 12. The impeller 14 includes a hub 142, and a plurality of blades 144 extending radially and outwardly from a periphery of the hub 142. The casing 12 includes a top cover 123, a bottom plate 124, and a sidewall 126 connecting the top cover 123 with the bottom plate 124. The top cover 123, the bottom plate 124 and the sidewall 126 cooperatively define a receiving space (not labeled) receiving the impeller 14.

[0013]The top cover 123 defines an air inlet 121 at a center thereof. The impeller 14 is rotatably connected to the top cover 123 with the hub 142 thereof aligned with the air inlet 121 of the top cover 123. The sidewall 126 defines an air outlet 122 between two ends of the sidewall 126, perpendicular to t...

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Abstract

A heat dissipation device includes a centrifugal fan and a fin assembly aside the centrifugal fan. The centrifugal fan includes a casing and an impeller received in the casing, the casing defines an air outlet at one side thereof. The fin assembly is located at the air outlet of the centrifugal fan. The fin assembly includes a plurality of fins parallel to and spaced from each other. Each of the fins includes a main body and an extending portion extending form the main body toward the air outlet of the centrifugal fan. Each extending portion includes a side edge facing the air outlet of the centrifugal fan, the side edge is arc shaped and inwardly concaved toward the main body.

Description

BACKGROUND[0001]1. Technical Field[0002]The present disclosure relates to heat dissipation devices, and particularly to a heat dissipation device incorporating a fin assembly.[0003]2. Description of Related Art[0004]Heat dissipation devices are often applied to dissipate heat from heat generating components, such as central procession units (CPUs). Generally, a conventional heat dissipation device includes a centrifugal fan and a fin assembly arranged at an air outlet of the fan.[0005]During operation of the heat dissipation device, the fan generates airflow through the fin assembly to take away the heat of the fin assembly absorbed from the heat generating component. However, a difference of an amount of the airflow at two ends of the air outlet is huge, and thus a utilization efficiency of the airflow is low.[0006]Thus, it is desired to overcome the described limitations.BRIEF DESCRIPTION OF THE DRAWINGS[0007]FIG. 1 is an assembled view of a heat dissipation device, according to a...

Claims

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Application Information

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IPC IPC(8): F28F13/00
CPCH01L23/467H01L2924/0002H01L2924/00
Inventor YANG, CHIH-HAOYEH, LI-KANSHIH, CHING-YI
Owner HON HAI PRECISION IND CO LTD