Vehicle having an electric heating device

Patent metadata

Field	Value
Publication number	US-9884537-B2
Application number	US-201514937951-A
Country	US
Kind code	B2
Filing date	Nov 11, 2015
Priority date	Jul 25, 2013
Publication date	Feb 6, 2018
Grant date	Feb 6, 2018

Abstract

A vehicle has an electric heating device which in operation reaches a temperature of more than 50° C., and includes a flat perforated decorative layer which is disposed on a front face of the heating device. Because of the perforation of the decorative layer, the heating device can radiate infrared radiation through holes provided in the decorative layer directly into a passenger compartment of the vehicle. The vehicle also has a reflector layer which is disposed on a rear face of the heating device facing away from the front face and is provided in order to reflect infrared radiation emitted by the heating device in the direction of the passenger compartment.

First claim

What is claimed is:

1. A vehicle, comprising:
an electric heating device which, in operation, reaches a temperature of greater than 50° C., wherein the electric heating device has a front side facing a passenger compartment of the vehicle;
a planar, perforated decorative layer arranged on the front side of the electric heating device so as to be disposed between the electric heating device and the passenger compartment;
a reflector layer arranged on a rear side of the electric heating device, the rear side facing away from the front side, wherein
the electric heating device is configured to emit infrared radiation through holes of the planar, perforated decorative layer directly into a passenger compartment of the vehicle due to the porosity of the decorative layer, and
the reflector layer is configured to reflect infrared radiation, emitted by the electric heating device, in a direction of the passenger compartment,
wherein an air gap is disposed between the electric heating device and the planar, perforated decorative layer such that a planar space is provided between and parallel to the electric heating device and the planar, perforated decorative layer.

2. The vehicle according to claim 1 , further comprising:
an insulation layer arranged on a rear side of the reflector layer, the rear side facing away from the electric heating device, wherein
the insulation layer is configured to reduce heat emission into a vehicle compartment.

3. The vehicle according to claim 1 , wherein the decorative layer has a perforation ratio of at least 20%.

4. The vehicle according to claim 1 , wherein the decorative layer has a perforation ratio of at least 30%.

5. The vehicle according to claim 1 , wherein the decorative layer has a perforation ratio of at least 40%.

6. The vehicle according to claim 1 , wherein the decorative layer is formed of a woven, weft-knitted, or warp-knitted fabric.

7. The vehicle according to claim 3 , wherein the decorative layer is formed of a woven, weft-knitted, or warp-knitted fabric.

8. The vehicle according to claim 1 , wherein the decorative layer has a thermal capacity per unit of surface area less than or equal to

1
⁢

⁢

KJ

m
2

·
K

.

9. The vehicle according to claim 1 , wherein the decorative layer has a thermal capacity per unit of surface area less than or equal to

0.3

m
2

·
K

KJ

.

10. The vehicle according to claim 1 , wherein the decorative layer has a thermal conductivity less than or equal to

0.5

m
·
K

W

.

11. The vehicle according to claim 1 , wherein the decorative layer has a thermal conductivity less than or equal to

0.1

m
·
K

W

.

12. The vehicle according to claim 1 , wherein the electric heating device is a heating film.

13. The vehicle according to claim 1 , wherein the electric heating device includes paper and carbon fiber components.

14. The vehicle according to claim 1 , wherein the electric heating device comprises a carrier substrate and an electrically conductive layer.

15. The vehicle according to claim 1 , wherein the electric heating device has a thermal capacity per unit of surface area less than or equal to

3
KJ

m
2

·
K

.

16. The vehicle according to claim 1 , wherein the electric heating device has a thermal capacity per unit of surface area less than or equal to

1

m
2

·
K

KJ

.

17. The vehicle according to claim 1 , wherein the electric heating device is configured to reach a temperature of 70° C. during operation.

18. The vehicle according to claim 1 , wherein the electric heating device is configured to reach a temperature of 100° C. during operation.

19. The vehicle according to claim 1 , wherein the electric heating device is configured to reach a temperature of 120° C. during operation.

Assignees

• Bayerische Motoren Werke Ag

Inventors

• Satzger Peter
• Herbolzheimer Robert
• Feinmann Eugen

Classifications

• B60R2013/0287

  integrating other functions or accessories · CPC title

• B60H1/2215 Primary

  the heat being derived from electric heaters · CPC title

• B60R13/02

  {Internal} Trim mouldings {; Internal} Ledges; Wall liners {for passenger compartments}; Roof liners (B60R13/01 takes precedence {; padded linings for the vehicle interior B60R21/04; arrangements or adaptations of floor mats or carpets in vehicles B60N3/04; internal lining for trains B61D17/18}) · CPC title

• H05B2203/032

  Heaters specially adapted for heating by radiation heating · CPC title

• H05B3/22

  non-flexible · CPC title