Electrical heating device, especially for motor vehicles

Details Electrical heating device, especially for motor vehicles Electrical heating device, especially for motor vehicles

2008-04-22

2008-04-22

Paik, Sang Y. (Department: 3742)

Electric heating

Heating devices

With heater-unit housing, casing, or support means

C219S202000, C219S505000, C219S530000, C219S540000, C392S347000, C392S355000, C392S360000, C392S379000

Reexamination Certificate

active

10548734

ABSTRACT:
This disclosure relates to an electrical heating device, especially for motor vehicles, including a closed frame (2) which include rails (3, 4) and cross rails (5, 6), heating elements (7) which include elements made of electrically conductive plastic layers (18) having PCT effect, which are arranged between contact plates (15, 16), heat-conducting secondary surface elements (8) that can be overflown by air and at least one electrically conductive spring element (9), wherein the heating elements (7) and the secondary surface elements (8) are alternatingly arranged next to one another and are braced against each other by the rails (3, 4) and a spring element (9) placed centrally which replaces the secondary surface element (8).

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