ELECTRICAL HEATING DEVICE

• US 20140061183A1
• Filed: 03/08/2013
• Published: 03/06/2014
• Est. Priority Date: 08/29/2012
• Status: Active Grant

• Current Assignee: Gentherm GmbH (Gentherm Incorporated)
• Original Assignee: Wet Automotive Systems AG (Gentherm Incorporated)
• Inventors: Chen, Sherry (Li), Li, William (Wei), Liu, Luffy (Fei), Zhang, Jonathan (Yu)
• Granted Patent: US 9,420,640 B2
• Time in Patent Office: Days
• US Class Current: 219/528
• CPC Class Codes: H01C 7/027 consisting of conducting or semi-conducting material dispersed in a non-conductive organic material
• CPC Class Codes: H05B 2203/017 Manufacturing methods or apparatus for heaters
• CPC Class Codes: H05B 2203/029 Heaters specially adapted for seat warmers
• CPC Class Codes: H05B 3/03 Electrodes
• CPC Class Codes: H05B 3/146 Conductive polymers, e.g. polyethylene, thermoplastics
• CPC Class Codes: H05B 3/34 flexible, e.g. heating nets or webs

Abstract

The invention relates to an electrical heating device with at least one electrical heating resistor and at least one contacting device.

Claims

1. An electrical heating device comprising:

at least one electrical heating resistor and at least one contacting device.

2. The heating device according to claim 1, wherein the heating resistor is manufactured at least partially from a combustible material and in that the heating device comprises at least one flame retardant device.

3. The heating device according to claim 1, wherein the heating resistor is provided with at least one flame retardant recess.

4. The heating device according to claim 1, wherein the heating resistor is provided with at least one fire propagation blocker, which is formed at least partially by a noncombustible or a self-extinguishing material.

5. The heating device according to claim 1, wherein the contacting device comprises a main electrode and several branch electrodes that branch off from the main electrode.

6. The heating device according to claim 1, wherein at least one contacting device comprises at least two electrically conductive layers that overlap at least partially over one another.

7. The heating device according to claim 1, wherein the contacting device comprises at least one self-supporting band, which is stuck to an electrical heating resistor.

8. The heating device according to claim 1, wherein the contacting device comprises a main electrode with a first conductive material, and in that the contacting device comprises branch electrodes branching off the main electrode, branch electrodes which are formed at least partially by a second conductive material that is chemically different from the first conductive material of the main electrode.

9. An air conditioning device, wherein the air conditioning device comprises at least one heating device according to claim 1.

10. A vehicle, wherein the vehicle comprises at least one heating device according to claim 1.

11. The heating device according to claim 2, wherein the heating resistor is provided with at least one flame retardant recess.

12. The heating device according to claim 2, wherein the heating resistor is provided with at least one fire propagation blocker, which is formed at least partially by a noncombustible or a self-extinguishing material.

13. The heating device according to claim 11, wherein the heating resistor is provided with at least one fire propagation blocker, which is formed at least partially by a noncombustible or a self-extinguishing material.

14. The heating device according to claim 13, wherein the contacting device comprises a main electrode and several branch electrodes that branch off from the main electrode.

15. The heating device according to claim 14, wherein at least one contacting device comprises at least two electrically conductive layers that overlap at least partially over one another.

16. The heating device according to claim 13, wherein the contacting device comprises at least one self-supporting band, which is stock to an electrical heating resistor.

17. The heating device according to claim 15, wherein the contacting device comprises at least one self-supporting band, which is stuck to an electrical heating resistor.

18. The heating device according to claim 14, wherein the contacting device comprises a main electrode with a first conductive material, and in that the contacting device comprises branch electrodes branching off the main electrode, branch electrodes which are formed at least partially by a second conductive material that is chemically different from the first conductive material of the main electrode.

19. The heating device according to claim 15, wherein the contacting device comprises a main electrode with a first conductive material, and in that the contacting device comprises branch electrodes branching off the main electrode, branch electrodes which are formed at least partially by a second conductive material that is chemically different from the first conductive material of the main electrode.

20. An electrical heating device comprising:

a. at least one electrical heating resistor including;

i. at least one flame, retardant recess,

ii. at least one fire propagation blocker, which is formed at least partially by a noncombustible or a self-extinguishing material, and

b. at least one contacting device including;

i. at least two electrically conductive layers that overlap at least partially over one another,

ii. at least one self-supporting band, which is stuck to an electrical heating resistor,

iii. a main electrode with a first conductive material, and in that the contacting device comprises branch electrodes branching off the main electrode, branch electrodes which are formed at least partially by a second conductive material that is chemically different from the first conductive material of the main electrode

wherein the heating resistor is manufactured at least partially from a combustible material and in that the heating device comprises at least one flame retardant device.