Polygonal-shaped heat pipes

Patent metadata

Field	Value
Publication number	US-2024318924-A1
Application number	US-202318504928-A
Country	US
Kind code	A1
Filing date	Nov 8, 2023
Priority date	Mar 23, 2023
Publication date	Sep 26, 2024
Grant date	—

Abstract

An elongated heat pipe is described. In examples, the heat pipe may include a body comprising a polygonal-shaped cross-section and a RF compatible material, e.g., a ceramic, a polymer, glass, etc. The heat pipe may further include a working fluid disposed within the body.

First claim

What is claimed is:

1 . A heat pipe comprising:
a body comprising a polygonal-shaped cross-section, wherein the body comprises a radio frequency (RF) compatible material comprising one of ceramic, polymer, or glass; and a working fluid disposed within the body.

2 . The heat pipe of claim 1 , wherein a diameter of a circle circumscribing the body is in a range of 800 to 1200 microns.

3 . The heat pipe of claim 1 , the RF compatible material comprises a polymer comprising one or more of poly(methyl methacrylate) (PMMA) based polymers, polysulfone (PSF) based polymers, azobenzene, or polytetrafluoroethylene.

4 . The heat pipe of claim 1 , wherein the body is at least one of (i) transparent to radio frequency (RF) transmissions or (ii) optically transparent.

5 . The heat pipe of claim 1 , wherein surfaces of the body meet in acute angles.

6 . The heat pipe of claim 1 , wherein the body comprises one of a triangular cross-section, a star-shaped cross-section, a square-shaped cross section, a trapezoidal cross-section, a rhomboid-shaped cross-section, or a hexagonal cross-section.

7 . The heat pipe of claim 1 , wherein the working fluid comprises at least one of water, acetone, ammonia, glycol/water solution, dielectric coolants, alcohol, liquid nitrogen, mercury, magnesium, potassium, sodium, lithium, silver, or methanol.

8 . A wearable device comprising one or more electronic components, wherein the one or more electronic components include at least one heat pipe, wherein the at least one heat pipe comprises:
a body comprising a polygonal-shaped cross-section; and a working fluid disposed within the body.

9 . The wearable device of claim 8 , wherein a diameter of a circle circumscribing the body is in a range of 800 to 1200 microns.

10 . The wearable device of claim 8 , wherein the body comprises a radio frequency (RF) compatible material.

11 . The wearable device of claim 10 , wherein the RF compatible material comprises one of ceramic, polymer, or glass.

12 . The wearable device of claim 11 , the RF compatible material comprises a polymer comprising one or more of poly(methyl methacrylate) (PMMA) based polymers, polysulfone (PSF) based polymers, azobenzene, or polytetrafluoroethylene.

13 . The wearable device of claim 8 , wherein the body is at least one of (i) transparent to radio frequency (RF) transmissions or (ii) optically transparent.

14 . The wearable device of claim 8 , wherein surfaces of the body meet in acute angles.

15 . The wearable device of claim 8 , wherein the body comprises one of a triangular cross-section, a star-shaped cross-section, a square-shaped cross section, a trapezoidal cross-section, a rhomboid-shaped cross-section, or a hexagonal cross-section.

16 . The wearable device of claim 8 , wherein the wearable device comprises one of augmented reality (AR) glasses, an AR headset, a virtual reality (VR) headset, and a watch.

17 . The wearable device of claim 16 , wherein the wearable device comprises AR glasses and the heat pipe is located in temple arms of the AR glasses.

18 . The wearable device of claim 16 , wherein the wearable device comprises an AR headset and the heat pipe is located in a frame of the AR headset.

19 . The wearable device of claim 16 , wherein the wearable device comprises a VR headset and the heat pipe is located in one or more of a visor of the VR headset, a stack-printed circuit board (PCB) architecture of the VR headset, or one or more optical assemblies of the VR headset.

20 . A method of making a heat pipe, the method comprising:
forming a body comprising a polygonal-shaped cross-section wherein the body comprises a radio frequency (RF) compatible material comprising one of ceramic, polymer, or glass; and disposing a working fluid within the body.

Assignees

• Meta Platforms Tech Llc

Inventors

• Toleno Brian
• Nikkhoo Michael
• Vakhshouri Kiarash

Classifications

• G02B27/0176

  characterised by mechanical features · CPC title

• F28F2260/02

  having microchannels · CPC title

• F28F21/067

  Details · CPC title

• F28F21/04

  of ceramic; of concrete; of natural stone · CPC title

• F28F21/006

  of glass · CPC title