To prevent dew condensation in a damper device, and therefore, freeze of a baffle plate with a simple and inexpensive constitution, in a refrigerator provided with the damper device in a duct.
A control device controls power distribution to a damper motor for opening and closing motion of the baffle plate of the damper device (control of circulation of cold air to switching chamber), and further distributes the power for self-heating not accompanying the opening and closing motion of the baffle plate, to the damper motor at a time excluding the opening and closing motion of the baffle plate. At a timing of distributing the power for self-heating, the distribution of power for self-heating to the damper motor is started in a pre-cooling operation, the power distribution is continued during a defrosting operation, and the distribution of power for self-heating to the damper motor is terminated, and normal control of the opening and closing motion is recovered when an ordinary cooling operation is recovered after the termination of the defrosting operation. Power distribution to an A-phase coil of the damper motor and that to a B-phase coil are alternately switched by every specific time in distributing the power for self-heating.
SAKUMA TSUTOMU
YOSHIOKA ISAHIRO
TANIGUCHI KAZUHISA
NOGUCHI YOSHIFUMI
KIKUCHI NORIHIRO
TENSHO KATSUHISA
TOSHIBA CONSUMER MARKETING
TOSHIBA KADEN SEIZO KK
| JPH0719709A | 1995-01-20 | |||
| JPH0989437A | 1997-04-04 | |||
| JPH09140193A | 1997-05-27 | |||
| JPS6380176A | 1988-04-11 | |||
| JP2004101005A | 2004-04-02 | |||
| JP2005030606A | 2005-02-03 | |||
| JPH10205957A | 1998-08-04 |