High thermal conductivity composite base plate

Patent metadata

Field	Value
Publication number	US-2016282067-A1
Application number	US-201514666241-A
Country	US
Kind code	A1
Filing date	Mar 23, 2015
Priority date	Mar 23, 2015
Publication date	Sep 29, 2016
Grant date	—

Abstract

Disclosed is a high thermal conductivity composite baseplate (“HTCCB”) for use with an electronics package on a vehicle. The HTCCB may include a first boron and carbon fiber layer and a second boron and carbon fiber layer. Additionally, the HTCCB may also include a carbon nanotube (“CNT”) material bonding the first boron and carbon fiber layer to the second boron and carbon fiber layer and a plurality of CNTs within the CNT material.

First claim

What is claimed is:

1 . A high thermal conductivity composite baseplate (“HTCCB”) for use with an electronics package on a vehicle, the HTCCB comprising:
a first boron and carbon fiber layer;
a second boron and carbon fiber layer;
an carbon nanotube (“CNT”) material attached between the first boron and carbon fiber layer to the second boron and carbon fiber layer,
wherein the CNT material includes a plurality of CNTs.

2 . The HTCCB of claim 1 , wherein the plurality of CNTs are oriented in an axial direction between the first boron and carbon fiber layer and the second boron and carbon fiber layer.

3 . The HTCCB of claim 2 , wherein the plurality of CNTs are continuous between the first boron and carbon fiber layer and the second boron and carbon fiber layer.

4 . The HTCCB of claim 3 , wherein the plurality of CNTs are in physical contact with the first boron and carbon fiber layer and the second boron and carbon fiber layer creating a bridge from the first boron and carbon fiber layer and the second boron and carbon fiber layer.

5 . The HTCCB of claim 4 , wherein the plurality of CNTs create a substantial bridge through the CNT material.

6 . The HTCCB of claim 5 , wherein the plurality of CNTs form a parallel heat conduction path from the first boron and carbon fiber layer to the second boron and carbon fiber layer, which is in parallel with a heat conduction path from the first boron and carbon fiber layer to the second boron and carbon fiber layer

7 . The HTCCB of claim 6 , wherein the plurality of CNTs are arranged perpendicular to an inner surface of the first boron and carbon fiber layer and an inner surface of the second boron and carbon fiber layer.

8 . The HTCCB of claim 7 , wherein the CNT material includes an epoxy film disposed between the first boron and carbon fiber layer and an inner surface of the second boron and carbon fiber layer.

9 . The HTCCB of claim 7 , wherein the CNT material is approximately 10 micrometers thick.

10 . The HTCCB of claim 8 , wherein the plurality of CNTs are configured to transfer the maximum amount of heat from the first boron and carbon fiber layer and an inner surface of the second boron and carbon fiber layer.

11 . The HTCCB of claim 10 ,
wherein the first boron and carbon fiber layer includes a plurality of boron fibers and a plurality of carbon fibers, wherein a diameter of a boron fiber of the plurality of boron fibers is substantially greater than a diameter of a carbon fiber or the plurality of carbon fibers.

12 . The HTCCB of claim 11 , wherein the diameter of the boron fiber is approximately 0.004 inches.

13 . The HTCCB of claim 12 , wherein the diameter of the carbon fiber is approximately 0.0005 inches.

14 . An output multiplexer chassis comprising:
an output multiplexer; and a high thermal conductivity composite baseplate (“HTCCB”) including
a first boron and carbon fiber layer,
a second boron and carbon fiber layer,
a carbon nanotube (“CNT”) material attached between the first boron and carbon fiber layer and the second boron and carbon fiber layer, and
a plurality of CNTs within the CNT material.

15 . The output multiplexer chassis of claim 14 , wherein the plurality of CNTs are oriented in an axial direction between the first boron and carbon fiber layer and the second boron and carbon fiber layer.

16 . The output multiplexer chassis of claim 15 , wherein the plurality of CNTs are continuous between the first boron and carbon fiber layer and the second boron and carbon fiber layer.

17 . The output multiplexer chassis of claim 16 , wherein the plurality of CNTs are in physical contact with the first boron and carbon fiber layer and the second boron and carbon fiber layer creating a bridge from the first boron and carbon fiber layer and the second boron and carbon fiber layer.

18 . The output multiplexer chassis of claim 17 , wherein the plurality of CNTs are arranged perpendicular to an inner surface of the first boron and carbon fiber layer and an inner surface of the second boron and carbon fiber layer.

19 . The output multiplexer chassis of claim 18 , wherein the CNT material includes an epoxy film disposed between the first boron and carbon fiber layer and an inner surface of the second boron and carbon fiber layer.

20 . The output multiplexer chassis of claim 18 ,
wherein the first boron and carbon fiber layer includes a plurality of boron fibers and a plurality of carbon fibers, wherein a diameter of a boron fiber of the plurality of boron fibers is substantially greater than a diameter of a carbon fiber or the plurality of carbon fibers.

Assignees

• Boeing Co

Inventors

• Aston Richard William
• Tomzynska Anna Maria

Classifications

• B32B2262/105

  Ceramic fibres · CPC title

• B32B2255/20

  Inorganic coating · CPC title

• B32B2262/10

  Inorganic fibres · CPC title

• B32B2260/023

  Two or more layers · CPC title

• F28F21/02 Primary

  of carbon, e.g. graphite · CPC title