Electric heating – Heating devices – With heating unit structure
Patent
1994-03-18
1996-12-10
Walberg, Teresa J.
Electric heating
Heating devices
With heating unit structure
338 22R, 219212, H05B 310
Patent
active
055827578
ABSTRACT:
A sheet-like thermal sensing element includes a carbon fiber mixed paper and resin layers laminated on both surfaces of the carbon fiber mixed paper. Electrodes are provided along opposite two sides of the carbon fiber mixed paper. A temperature change can be detected by detecting the change of resistance value of the carbon fiber mixed paper. A sheet-like heater is also disclosed, the heater including a pair of carbon fiber mixed papers separated by an insulating sheet and surrounded by resin. Each of the carbon fiber mixed papers include electrodes thereon. The sheet like heater can both generate heat and detect temperature change for precise heating control. Also disclosed is a method of making both the sheet-like heater and sheet-like thermal sensing element involving producing the carbon fiber mixed paper, electrode formation, laminating the mixed papers together and resin encapsulation.
REFERENCES:
patent: 3789190 (1974-01-01), Orosy et al.
patent: 3839134 (1974-10-01), Fujihara
patent: 3998689 (1976-12-01), Kitago et al.
patent: 4149066 (1979-04-01), Niibe
patent: 4629584 (1986-12-01), Yasuda
patent: 5086212 (1992-02-01), Itakura et al.
Hayashi Yukiko
Kio Koichiro
Kabushiki Kaisha Dairin Shoji
Paik Sam
Walberg Teresa J.
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