Heat sinks with vibration enhanced heat transfer for non-liquid heat sources

Patent metadata

Field	Value
Publication number	US-10866038-B2
Application number	US-201916664531-A
Country	US
Kind code	B2
Filing date	Oct 25, 2019
Priority date	Oct 25, 2018
Publication date	Dec 15, 2020
Grant date	Dec 15, 2020

Abstract

The heat sinks with vibration enhanced heat transfer for non-liquid heat sources are heat sinks formed from a first body of high thermal conductivity material received within a thermally conductive housing such that at least one contact face of the first body of high thermal conductivity material is exposed, forming a direct contact interface with a heat source requiring cooling. The heat source requiring cooling may be any non-liquid heat source, including a processor chip, an integrated circuit chip, a modular circuit package, or the like. The thermally conductive housing may be disposed such that at least one contact face of the thermally conductive housing is in direct contact with the vibrating base. Alternatively, the vibrating base may be attached to a support attached to the heat source. The vibrating base applies oscillating waves to the heat sink, thereby increasing heat transfer between the heat source and the heat sink.

First claim

We claim:

1. A heat sink with vibration enhanced heat transfer for non-liquid heat sources, comprising:
a thermally conductive housing having at least one contact face and at least one wall;
a first body made of a thermally conductive phase change material disposed within thermally conductive housing, the first body of thermal conductivity material having a first contact face disposed for direct contact with a non-liquid heat source to be cooled at one end of the housing and a second contact face located at a first contact face of the housing; and
a vibrating base, the vibrating base disposed in direct contact with an entire second contact face of the thermally conductive housing; wherein the vibrating base is configured to propagate oscillating waves through the thermally conductive housing and the second contact face of the first body of thermal conductivity material to reach the first contact face disposed for direct contact with the non-liquid heat source; and
at least one thermally conductive vertical stud having opposed first and second ends, wherein the first end of the thermally conductive vertical stud is affixed within the second contact face of the thermally conductive housing and the first end of the vertical stud is in direct contact with the vibrating base and the second end is positioned within the first body.

2. The heat sink as recited in claim 1 , further comprising a plurality of thermally conductive fins mounted on at least a portion of the at least one wall of the thermally conductive housing.

3. The heat sink as recited in claim 1 , further comprising at least one internal chamber within the at least one thermally conductive vertical stud, and a body of high thermal storage capacity material within the at least one internal chamber.

4. The heat sink as recited in claim 1 , further comprising a plurality of fins mounted on at least a portion of the at least one thermally conductive vertical stud.

5. The heat sink as recited in claim 1 , wherein the first body of thermal conductivity material is a solid phase change material.

6. The heat sink as recited in claim 5 , further comprising at least one sensor positioned on the thermally conductive housing to detect melting of the first body of thermal conductivity material at the contact face adapted for direct contact with the non-liquid heat source to be cooled.

7. The heat sink as recited in claim 1 , wherein the first body of thermal conductivity material is a liquid.

Assignees

• Univ United Arab Emirates

Inventors

• Al Omari Salah Addin Burhan
• Elnajjar Emad

Classifications

• H10W40/77

  Auxiliary members characterised by their shape · CPC title

• H10W40/73

  for cooling by change of state · CPC title

• H10W40/735

  by melting or evaporation of solids · CPC title

• F28D2021/0029

  Heat sinks · CPC title

• F28D20/021

  the latent heat storage material and the heat-exchanging means being enclosed in one container (F28D20/023 - F28D20/028 take precedence) · CPC title