Electric heater for a motor vehicle

The heater has a set of positive temperature coefficient heating elements heating airflow. A temperature sensor (31) is arranged within the heater for measuring temperature for an indirect determination of a surface temperature of the heating element based on thermal radiation and/or thermal conduct...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MORGEN, CHRISTIAN, REISS, HOLGER, NIEDERER, MICHAEL
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING,OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODSSPACES OF VEHICLES BLASTING ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL HEATING LIGHTING MECHANICAL ENGINEERING PERFORMING OPERATIONS RANGES TRANSPORTING VEHICLES IN GENERAL VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	The heater has a set of positive temperature coefficient heating elements heating airflow. A temperature sensor (31) is arranged within the heater for measuring temperature for an indirect determination of a surface temperature of the heating element based on thermal radiation and/or thermal conduction. A control device is used for detecting whether the temperature measured by the temperature sensor exceeds a predetermined temperature value. The control device reduces the heating power if the control device states that temperature exceeds the predetermined temperature value. Independent claims are also included for the following: (1) a motor car interior heating unit (2) a method for monitoring an electrical heater for a motor car.