JPS5538446A - Room heater - Google Patents

Abstract

PURPOSE: To have room already heated at the time when the alarm clock goes off by incorporating an alarm timer into a room heating system which starts heating operation before the set time of the clock.

CONSTITUTION: Outputs of memory circuit 14 for time set for alarm ring and burner ignition, and circuit 15 for burner putting out, i.e. various set time signals are supplied to comparator 16. Output of clock 17 is inputted into clock time transmission circuit 18 and digit-carry detecting circuit 19, whereby output per minute from detecting circuit 19 is inputted into the transmission circuit 18 by digit carried to minute unit at clock 17, and output of circuit 18 is inputted into comparison circuit 16 thru clock time comparison memory circuit 20. Circuit 21 memorizes whether each timer for burner ignition, burner putting out and alarm ring is set or not, and its output is inputted into comparator 16 and transmission circuit 18 thru comparison and selection circuit 22, and indicate time to be compared. The data are transmitted and treated after adding time length necessary to heat the room before alrm goes off. Output of comparator 16 is inputted into memory circuit 21 and control circuit 23 for controlling alarm ring and burner ingnition.

COPYRIGHT: (C)1980,JPO&Japio