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Corrugated radiation fin and heat sink using same

a radiation fin and heat sink technology, applied in the field of corrugated radiation fins for heat sinks, can solve the problems of limited heat dissipation surface area, and achieve the effect of increasing the total radiation surface area and enhancing the overall heat dissipation efficiency of the radiation fins

Inactive Publication Date: 2014-10-23
HUANG TSUNG HSIEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes a design for a fin that improves heat dissipation efficiency by using a larger area of corrugated radiation. The overall result is that the total radiation surface area is increased.

Problems solved by technology

However, because these ribs (radiation fins) are planar sheet members, their heat dissipation surface area is limited.

Method used

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  • Corrugated radiation fin and heat sink using same
  • Corrugated radiation fin and heat sink using same
  • Corrugated radiation fin and heat sink using same

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0029]Referring to FIGS. 3 and 4, a heat sink in accordance with the present invention is shown. As illustrated, the heat sink comprises a plurality of corrugated radiation fins 1 and a one-piece heat transfer block 2. The one-piece heat transfer block 2 comprises a plurality of mounting grooves 21 arranged in parallel on a top wall thereof. Each corrugated radiation fin 1 comprises a plug portion 11 disposed at a bottom side thereof, a corrugated radiation fin body 12 disposed at a top side thereof, and a transition surface area 13 between the plug portion 11 and the corrugated radiation fin body 12. The plug portions 11 of the corrugated radiation fins 1 are respectively press-fitted into the mounting grooves 21 of the one-piece heat transfer block 2. Further, these corrugated radiation fins 1 have the same size. The corrugated configuration of the corrugated radiation fins 1 provide extended heat dissipation surface area to enhance the overall heat dissipation efficiency of the h...

second embodiment

[0030]Referring to FIGS. 5-7, a heat sink in accordance with the present invention is shown. As illustrated, the heat sink comprises a plurality of corrugated radiation fins 1a, a one-piece heat transfer block 2a, and a plurality of heat pipes 3. Each corrugated radiation fin 1a comprises a plug portion 11a disposed at a bottom side thereof, a corrugated radiation fin body 12a disposed at a top side thereof, a transition surface area 13a between the plug portion 11a and the corrugated radiation fin body 12a, and a plurality of through holes 121a cut through the corrugated radiation fin body 12a at selected locations. The one-piece heat transfer block 2a comprises a plurality of mounting grooves 21a arranged in parallel on a top wall thereof, and a plurality of heat pipe grooves 22a located at a bottom wall thereof. The plug portions 11a of the corrugated radiation fins 1a are respectively press-fitted into the mounting grooves 21a of the one-piece heat transfer block 2a. The heat pi...

fourth embodiment

[0033]Referring to FIGS. 11 and 12, a heat sink in accordance with the present invention is shown. As illustrated, the heat sink comprises a plurality of corrugated radiation fins 1c, two bar-shaped heat transfer blocks 2′, and a plurality of heat pipes 3. Each corrugated radiation fin 1c comprises a plug portion 11c disposed at one side thereof, a corrugated radiation fin body 12c disposed at an opposite side thereof, a transition surface area 13c between the plug portion 11c and the corrugated radiation fin body 12c, and a plurality of through holes 121c cut through the corrugated radiation fin body 12c at selected locations. Further, the plug portion 11c has its one side connected to the transition surface area 12c, and its other side shaped to provide a plurality of heat pipe grooves 111c located in the middle for accommodating the heat pipes 3, two low-level mounting edges 112c disposed at two opposite lateral sides relative to the heat pipe grooves 11c and respectively press-f...

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Abstract

A heat sink includes one or two heat transfer blocks, and corrugated radiation fins fastened to the heat transfer block(s). Each corrugated radiation fin has a large area corrugated radiation fin body to provide an extended heat dissipation surface area, and a plug portion located at the bottom side of the large area corrugated radiation fin body and press-fitted into one respective mounting groove of the heat transfer block(s).

Description

BACKGROUND OF THE INVENTION[0001](a) Field of the Invention[0002]The present invention relates to heat sink technology, and more particularly to a corrugated radiation fin for heat sink, which has a large area corrugated radiation fin body that provides an extended heat dissipation surface area to enhance heat dissipation efficiency. The invention relates also to a heat sink using this design of corrugated radiation fins.[0003](b) Description of the Prior Art[0004]Conventional heat sinks generally comprise a heat transfer block and a plurality of radiation fins. Some heat sinks have one or more heat pipes fastened to the heat transfer block thereof. Conventional radiation fins for heat sink are commonly made in the form of a flat sheet for dissipating heat transferred from the heat transfer block of heat pipes. The mount and total surface area of the radiation fins directly affect the overall heat dissipation efficiency of the heat sink. The larger the number of the radiation fins i...

Claims

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Application Information

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IPC IPC(8): F28D15/02F28F3/02
CPCF28F3/027F28D15/0275F28F1/32F28F3/06H01L21/4882H01L23/3672H01L23/427H01L2924/0002H01L2924/00F28D15/02F28F1/10
Inventor HUANG, TSUNG-HSIEN
Owner HUANG TSUNG HSIEN