Temperature control device for electrical heating equipment

• Main Author: BALDUS, MICHAEL, 33100 PADERBORN, DE
• Format: Patent
• Language: English; German
• Published: 17.06.1999
• Edition: 6
• Subjects: CONTROLLING; PHYSICS; REGULATING; SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES

The device (TR) is located in a heated area of an electric heating (Q), comprising a sealed regulator casing (RG), housing a control processor (ST) with a nominal point generator (P), a temperature sensor (TH), and a power switching element (R). The control processor produces a real-time switch on/off ratio for the switching element in periodic intervals, dependent on a comparison of an actual temperature value and the nominal point, whereby it controls the heating. The device (TR) is located in a heated area of an electric heating (Q), comprising a regulator casing (RG) which is sealed against dust, and which houses a control processor (ST) with a nominal point generator (P), a temperature sensor (TH), and a power switching element (R) which controls the heating. The control processor produces a real-time switch on/off ratio for the switching element in periodic intervals, dependent on a comparison of an actual temperature value and the nominal point, whereby it controls the heating. The comparison is respectively performed with the actual value measured at half the switch-off time period or with an average value of both actual values measured in the beginning and at the end of the switch-off time.