| 摘要 |
PROBLEM TO BE SOLVED: To reduce a starting current to remain low and thereby to lessen power consumption by conducting control so that one fan motor be started after a prescribed period passes from the start of the other fan motor, on the occasion when the fan motors are started in a refrigerator equipped with the two fan motors at least. SOLUTION: On the occasion of control by a microcomputer 2, first a compressor is turned ON, transistors(Tr) 7-9 OFF and only Tr 10 ON and thereby a refrigerator fan motor 17 is started in the case when the temperature of a freezing chamber is judged to be higher than a set temperature. Then, Tr 20 is turned OFF and only Tr 24 ON and thereby a condensing motor 26 is started. After a prescribed time passes, subsequently, the Trs 7, 8 and 10 are turned OFF and only the Tr 9 ON so as to raise a voltage to be impressed on the refrigerator fan motor 17 and then the Trs 20 and 24 are turned OFF to raise a voltage to be impressed on the condensing fan motor 26. Finally, the fan motors 17 and 26 are driven with a normal voltage. |
