Electric heating – Heating devices – With heater-unit housing – casing – or support means
Patent
1992-02-24
1993-12-14
Bartis, Anthony
Electric heating
Heating devices
With heater-unit housing, casing, or support means
219505, 219540, 219541, 219544, 338 22R, 338249, 338328, 392360, 392379, H05B 102, H05B 300, H01C 702, F24H 304
Patent
active
052705218
ABSTRACT:
In a heating apparatus including a plate-shaped positive temperature coefficient thermistor having a pair of electrode films, a pair of terminal plates of an elastic metal material are provided on the pair of electrode films of the thermistor, and there is further provided a spacer including a mounting through-hole which passes through the spacer in a thickness direction thereof. The spacer receives the thermistor in the mounting through-hole so as to position the thermistor therein between the pair of terminal plates. Each terminal plate comprises at least one extending portion extending in a longitudinal direction thereof from one portion of one end thereof, and the extending portion comprises a stopper piece which is folded toward the spacer, the stopper piece including a hook-shaped engaging stopper at an end of the stopper piece. Furthermore, the spacer comprises an engaging through-hole formed at a position corresponding to the engaging stopper of the stopper piece of each of the pair of terminal plates and the engaging through-hole passes through the spacer in the thickness direction thereof. The pair of terminal plates are elastically urged toward the pair of electrode films of the thermistor, and each engaging stopper is inserted into a corresponding engaging through-hole so as to engage in the spacer.
REFERENCES:
patent: 4228343 (1980-10-01), Kanner
patent: 4341949 (1982-07-01), Steiner et al.
patent: 4814584 (1989-03-01), Bohlender et al.
patent: 4948953 (1990-08-01), Starck
patent: 4954692 (1990-09-01), Shikama et al.
Shikama Takashi
Torii Kiyofumi
Yamamoto Tomoyuki
Bartis Anthony
Murata Manufacturing Co. Ltd.
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