Heating Device For A Seat Heater Of A Motor Vehicle

Patent metadata

Field	Value
Publication number	US-2016152111-A1
Application number	US-201514947587-A
Country	US
Kind code	A1
Filing date	Nov 20, 2015
Priority date	Nov 21, 2014
Publication date	Jun 2, 2016
Grant date	—

Abstract

The present invention is directed to a heating device for a seat heater of a motor vehicle, which heating device is adapted to be placeable between a base body ( 2 ) of foam and a seat cover ( 8 ) of a vehicle seat, and which heating device comprises a heating mat ( 6 ) having a carrier layer which carries a heating conductor extending over a heating area, and a foam layer as a seat cover upholstery ( 4 ), which seat cover upholstery ( 4 ) is connected to the heating mat ( 6 ) surface which carries the heating conductor, characterized in that the heating device is adapted to be, with the heating mat ( 6 ) in direct contact with the seat cover ( 8 ), sewable by stitches going through the seat cover ( 8 ), the heating mat ( 6 ) and the seat cover upholstery ( 4 ) to form seams ( 12 ) extending through the heating area, by forming the heating conductor as a stranded conductor comprising at least 100 metal filaments.

First claim

1 . Heating device for a seat heater of a motor vehicle, said heating device adapted to be placeable between a base body ( 2 ) of foam and a seat cover ( 8 ) of a vehicle seat, and said heating device comprising:
a heating mat ( 6 ) having a carrier layer which carries a heating conductor extending over a heating area with said heating conductor being a stranded conductor comprising at least 100 metal filaments, and a seat cover upholstery ( 4 ) comprising a foam layer with said seat cover upholstery ( 4 ) connected to a surface of said heating mat ( 6 ) that carries said heating conductor, wherein said heating mat ( 6 ) is adapted to be in direct contact with the seat cover ( 8 ) and sewable by stitches going through the seat cover ( 8 ), said heating mat ( 6 ) and the seat cover upholstery ( 4 ) to form seams ( 12 ) extending through said heating area.

2 . Heating device according to claim 1 , wherein said heating conductor is a stranded conductor comprising at least 300 metal filaments.

3 . Heating device according to claim 1 , wherein said heating conductor is a stranded conductor comprising at least 500 metal filaments.

4 . Heating device according to claim 1 , wherein said carrier layer of said heating mat ( 6 ) consists of felt, fleece, woven material or cut foam.

5 . Heating device according to claim 1 , wherein said carrier layer of said heating mat ( 6 ) is arranged to be air permeable.

6 . Heating device according to claim 5 , wherein said carrier layer of said heating mat ( 6 ) is formed of reticulated foam or is provided with perforations in order to ensure air permeability.

7 . (canceled)

8 . Heating device according to claim 1 , wherein said heating conductor is a stranded conductor comprising at least 200 metal filaments.

9 . Heating device according to claim 1 , wherein each of said metal filaments has a diameter of from 100 nm to 100 μm.

10 . Motor vehicle seat comprising:
a base body of foam ( 2 ); a seat cover ( 8 ); and a heating device disposed between said base body of foam ( 2 ) and said seat cover ( 8 ), said heating device comprising;
a heating mat ( 6 ) having a carrier layer which carries a heating conductor extending over a heating area with said heating conductor being a stranded conductor comprising at least 100 metal filaments, and
a seat cover upholstery ( 4 ) comprising a foam layer with said seat cover upholstery ( 4 ) connected to a surface of said heating mat ( 6 ) that carries said heating conductor;
wherein said heating mat ( 6 ) is in direct contact with the seat cover ( 8 ) and sewn by stitches going through said seat cover ( 8 ), said heating mat ( 6 ), and said seat cover upholstery ( 4 ) to form seams ( 12 ) extending through said heating area.

11 . Motor vehicle seat according to claim 10 , wherein said heating conductor is a stranded conductor comprising at least 200 metal filaments.

12 . Motor vehicle seat according to claim 10 , wherein each of said metal filaments has a diameter of from 100 nm to 100 μm.

13 . Motor vehicle seat according to claim 10 , comprising a plurality of parallel first seams and, at an angle with respect to the first seams, a second plurality of parallel seams which together form a diamond pattern on said seat cover.

Assignees

• Kongsberg Automotive Ab

Inventors

• Tüskes Milan

Classifications

• H05B3/36

  heating conductor embedded in insulating material · CPC title

• B60H1/00285 Primary

  for vehicle seats · CPC title

• B60N2/5685 Primary

  Resistance · CPC title

• H05B2203/029

  Heaters specially adapted for seat warmers · CPC title

• H05B3/34

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