Positive temperature coefficient (PTC) resistor heating device

Details Positive temperature coefficient (PTC) resistor heating device Positive temperature coefficient (PTC) resistor heating device

1980-08-25

1982-05-25

Mayewsky, Volodymyr Y.

Electric heating

Heating devices

With heating unit structure

219505, 219540, 219541, 338 22R, H05B 310

Patent

active

043318614

ABSTRACT:
A heating device has a PTC resistor plate as the heating element and is covered with an insulating body. Between the heating element and the insulating body, on each of opposite surfaces of the heating element, ductile metal layers, preferably aluminum, are provided under a permanent pressure of at least 0.3.times.10.sup.8 Pa, the layers being designed as current supply electrodes having electrical terminals. The resistor plate may advantageously have a surface roughness in the magnitude of 100 .mu.m.

REFERENCES:
patent: 2278072 (1942-03-01), Gould et al.
patent: 3243753 (1966-03-01), Kohler
patent: 3344316 (1967-09-01), Stelmak
patent: 3401318 (1968-09-01), Jensen
patent: 3940591 (1976-02-01), Ting
patent: 3996447 (1976-12-01), Bouffard et al.
patent: 4147927 (1979-04-01), Pirotte
patent: 4177375 (1979-12-01), Meixner
patent: 4223208 (1980-09-01), Kleinschmidt et al.
patent: 4230935 (1980-10-01), Meixner

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