AUTOMATIC VENDING MACHINE

• Main Author: ISHITA HISANORI
• Format: Patent
• Language: English
• Published: 18.05.2001
• Edition: 7
• Subjects: CHECKING-DEVICES; COIN-FREED OR LIKE APPARATUS; PHYSICS

PROBLEM TO BE SOLVED: To prevent a from smelling with a refrigerant gas when a refrigerant leakage occurs inside during cooling operation with an automatic vending machine, with which a combustible refrigerant is sued for a freezer, as an object. SOLUTION: Concerning the automatic vending machine, with which an commodity storage rack 4 and a cooling unit 8 composed of an evaporator 7 and an internal fan 6 of a freezer 9 using the combustible refrigerant are provided inside a main body case 1 with door, a refrigerant leakage detecting sensor 14, an exhaust hole 12 with damper to the suction side of the cooling unit as an exhausting means equipped with an exhausting means for internal air and an external air sucking port 13 are provided inside the main body case and a reversible motor is adopted for an internal fan motor 6a. When the refrigerant leakage occurs, based on a sensor signal, the fan motor is switched to backward rotation, the dampers of the exhausting port and the external air sucking port are opened, internal air containing the refrigerant is exhausted outside, the internal air is exchanged with external air led through the sucking port, and the commodity is prevented from smelling with the refrigerant gas by filling the inside with the gas.