PTC heating apparatus

Details PTC heating apparatus PTC heating apparatus

1979-10-17

1987-03-31

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

With heating unit structure

219381, 219553, 219374, 219543, 338 22R, 338327, H05B 308

Patent

active

046545107

ABSTRACT:
A PTC heating element with a honeycomb ceramic body comprising a barium titanate and semiconductor element, which provides the ceramic body with a positive temperature coefficient of resistance over the Curie point. An electrode is deposited on each end of the honeycomb body. The electrodes according to the present invention have a non-ohmic property, while the conventional electrodes have been ohmic. A high rush current and migration are advantageously decreased by the non-ohmic electrodes.

REFERENCES:
patent: 3927300 (1975-12-01), Wada et al.
patent: 3956614 (1976-05-01), Hervert
patent: 3995143 (1976-11-01), Hervert
patent: 4032752 (1977-08-01), Ohmura et al.
patent: 4232214 (1980-11-01), Shioi et al.

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