Electric heating device

Details Electric heating device Electric heating device

2006-04-24

2009-02-24

Robinson, Daniel L (Department: 3742)

Electric heating

Heating devices

With heating unit structure

C219S546000

Reexamination Certificate

active

07495195

ABSTRACT:
An electric heating device includes an electric heater (10) and at least one heat radiator (30, 40) thermally attached to the electric heater. The electric heater includes a pair of electrode plates (12, 14) parallel to each other and a plurality of PTC (Positive Temperature Coefficient) heating elements (16) sandwiched between and electrically connecting the electrode plates. The heating elements are alternately arranged with a plurality of insulation sheets (18). An electrically-insulating and heat-conductive insulation frame (19) encloses the electrode plates therein for electrically insulating the electric heater from the heat radiator.

REFERENCES:
patent: 5995711 (1999-11-01), Fukuoka et al.
patent: 6720536 (2004-04-01), Bohlender
patent: 7282678 (2007-10-01), Tung et al.
patent: 2331142 (1999-07-01), None
patent: 5-29069 (1993-02-01), None

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