Insulation paper with high thermal conductivity materials

Abstract

The present invention provides for a high thermal conductivity (HTC) paper that comprises a host matrix, such as mica, and HTC materials intercalated into the host matrix. The HTC materials are comprised of at least one of nanofillers, diamond like coatings directly on the host matrix, and diamond like coatings on the nanofillers.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims priority to U.S. provisional 60 / 580,023, filed Jun. 15, 2004, by Smith, et al., which is incorporated herein by reference. This application is further related to US patent application “Fabrics with High Thermal Conductivity Coatings” filed herewith, by Smith, et al., which is also incorporated herein by reference.FIELD OF THE INVENTION [0002] The field of the invention relates to increasing the thermal conductivity of paper used in electrical insulation. BACKGROUND OF THE INVENTION [0003] With the use of any form of electrical appliance, there is a need to electrically insulate conductors. With the push to continuously reduce the size and to streamline all electrical and electronic systems there is a corresponding need to find better and more compact insulators and insulation systems. [0004] Good electrical insulators, by their very nature, also tend to be good thermal insulators, which is undesirable. Thermal in...

AI Technical Summary

Benefits of technology

[0007] With the foregoing in mind, methods and apparatuses consistent with the present invention, which inter alia facilitates the thermal conductivity of insulating paper by intercalating high thermal conductivity (HTC) materials onto and / or into the host matrix of the insulating paper. The HTC materials of the present invention can be of a variety of types, such as nanofillers or surface coatings, and both nanofillers and surface coatings each comprise various sub-groups unto themselves. The HTC materials can be added to the paper at a variety of stages, such as when the paper is in its raw materials, or substrate, stage, when the paper is being formed, or after the paper has been formed. Mica is a particular kind of substrate for insulating paper due to its high electrical resistivity.

Problems solved by technology

Good electrical insulators, by their very nature, also tend to be good thermal insulators, which is undesirable.

Thermal insulating behavior, particularly for air-cooled electrical equipment and components, reduces the efficiency and durability of the components as well as the equipment as a whole.

Other problems with the prior art also exist, some of which will be apparent upon further reading.