PTC heater assembly with securely positioned PTC resistors

Details PTC heater assembly with securely positioned PTC resistors PTC heater assembly with securely positioned PTC resistors

1991-02-11

1992-06-23

Bartis, Anthony

Electric resistance heating devices

Heating devices

Continuous flow type fluid heater

219505, 219540, 219541, 338 22R, 392365, 392502, H05B 102, H05B 306, F24H 304, F24H 110

Patent

active

051250705

ABSTRACT:
A PTC heater for securely positioning resistors is disclosed. The PTC heater has two insulating plates having a plurality of square or rectangular through holes, a conductive position plate having a plurality of square or rectangular through holes facing toward those in the insulating plates and a resistor cavity defined by four angular-shaped fixing chips fixed on each of the four inside faces for positioning a PTC resistor therein, and a conductive elastic plate having a plurality of square or rectangular through holes facing toward those in the insulating plates. The elastic plate has an elastic projection on each of the four inside faces of a through hole for pressing a lateral surface of a PTC resistor positioned in a through hole of the position plate after the elastic plate and the position plate have been sandwiched between the two insulating plates.

REFERENCES:
patent: 4667644 (1987-05-01), Hori et al.
patent: 4703153 (1987-10-01), Pelonis

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