To prevent the generation of the faulty lighting and lowering in illuminating degree after lighting of a fluorescent lamp by providing a heater, for heating the circumference of the fluorescent lamp, so as to be near to the fluorescent lamp for illuminating the inside of a cooling chamber, which is lighted and put off in conjunction with the opening and closing of a door.
A door switch 16, provided on the lower end of a refrigerating chamber door, is pushed and turned off by the impression of pressure of the door upon closing the same door while the pressure is released upon opening the same door and the swich is turned on whereby the lighting and putting off of the fluorescent lamp 39 are effected. A heater 28, provided on the upper surface of the fluorescent lamp 30 in a receiving groove, generates heat in accordance with the supply of power whereby the temperature in the circumference of the fluorescent lamp 39 is increased to a temperature compatible with the lighting of the same lamp. A microcomputer 19 turns a second relay 22 on to preheat filaments 37, 38 and turns a third relay 23 on to operate the heater 28 by the turn on of the door switch 16.
KIN SHIYOUKI
RI SHIYOUKEN
KIN MITSUHIRO
SAI CHINKOU
