| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an automatic vending machine of which power consumption can be suppressed. <P>SOLUTION: An automatic vending machine which supplies a coolant to an evaporator through an electronic expansion valve 53 provided in a conduit through which the condensed coolant is supplied to the evaporator, for adjusting a flow rate of the coolant passing therethrough by changing the opening thereof according to a given opening command, so that an interior temperature inside a cooling chamber has a temperature in a preset temperature range, the machine comprises: an in-chamber operation on/off time measuring section 63 for measuring an operation time and stop time of the evaporator and for measuring those of a condenser installed in a heating chamber; an operation rate calculating section 64 for calculating each operation rate of the evaporator and the condenser from each measured operation time and stop time of the evaporator and the condenser; and an expansion valve opening correcting section 66 for correcting the opening of the electronic expansion valve 53 so that the operation rate of the evaporator corresponds to that of the condenser. <P>COPYRIGHT: (C)2012,JPO&INPIT |
