Carbon nanotube sheet heater

Patent metadata

Field	Value
Publication number	US-9237606-B2
Application number	US-201013147810-A
Country	US
Kind code	B2
Filing date	Feb 17, 2010
Priority date	Feb 17, 2009
Publication date	Jan 12, 2016
Grant date	Jan 12, 2016

Abstract

The present invention relates to a sheet heater produced by gravure printing, in which a silver paste is printed in a zigzag pattern between biaxially oriented transparent PET or OPS films and a CNT ink having excellent heat generating properties is coated in a sheet shape on the film, thereby preventing disconnection or fire and enabling temperature elevation in a short period of time while consuming less power.

First claim

The invention claimed is:

1. A sheet heater comprising
a base film,
a printed electrode layer printed on the base film,
a printed carbon nanotube heat generating layer printed on the electrode layer,
a film layer,
a copper thin film layer,
an adhesive layer, and
an insulator layer from said adhesive layer;

wherein the copper thin film layer is in contact with two planes of the carbon nanotube heat generating layer;
wherein the base film includes a biaxially oriented polyethylene terephthalate (PET) film or oriented polystyrene (OPS) film;
wherein the carbon nanotube heat generating layer includes metal-doped carbon nanotube, and is printed in a pre-determined pattern on the electrode layer; and
wherein the insulator layer is formed of polyurethane (PU), expanded polystyrene (EPS), or expanded polypropylene (EPP), and the base film and the insulator layer are separate layers.

2. The sheet heater of claim 1 , wherein a protective layer is included instead of said insulator layer.

3. The sheet heater of claim 2 , wherein the film layer includes a biaxially oriented film.

4. The sheet heater of claim 1 , wherein a conductive adhesive is deposited between the copper thin-film layer and the electrode layer.

5. The sheet heater of claim 1 , wherein the film layer includes a biaxially oriented film.

Assignees

• Yue Seong-Hoon
• Jung Yong-Bae
• Kim Jong-Bum
• Lg Hausys Ltd

Inventors

• Yue Seong-Hoon
• Jung Yong-Bae
• Kim Jong-Bum

Classifications

• H05B2214/04

  Heating means manufactured by using nanotechnology · CPC title

• H05B3/34 Primary

  flexible, e.g. heating nets or webs · CPC title

• H05B2203/004

  using zigzag layout · CPC title

• H05B2203/029

  Heaters specially adapted for seat warmers · CPC title

• H05B2203/013

  Heaters using resistive films or coatings · CPC title