VENDING MACHINE

• Main Authors: OTSUBO TOMONORI, ISHINO YUJI, TAKIGUCHI KOJI, ISHITA HISANORI, WATANABE TADAO
• Format: Patent
• Language: English
• Published: 19.08.2010
• Subjects: BLASTING; CHECKING-DEVICES; COIN-FREED OR LIKE APPARATUS; COLD ROOMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS; HEAT PUMP SYSTEMS; HEATING; ICE-BOXES; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; PHYSICS; REFRIGERATION OR COOLING; REFRIGERATORS; WEAPONS

PROBLEM TO BE SOLVED: To provide a vending machine in which a heat exchanger attaining desired heat exchange with a simple configuration without enlarging the area of a plate combining a condensation fin and an evaporation fin is installed. SOLUTION: An internal heat exchanger 440 constituting a cooling-heating unit 1000 is formed of a plurality of fin plates 441, a condensation heat transfer tube 442 and an evaporation heat transfer tube 446 penetrating the plurality of fin plates 441 in a heat transferable manner. Both ends of the condensation heat transfer tube 442 projects to the outside from a first side plate 441a, and high-pressure high-temperature refrigerant inflow piping 12 and high-pressure high-temperature refrigerant outflow piping 28 are connected thereto respectively. Both ends of an evaporation heat transfer tube 446 also project to the outside from the first side plate 441a, and a low-temperature low-pressure refrigerant inflow piping 46 and a low-pressure low-temperature refrigerant outflow piping 68 are connected thereto respectively. The condensation heat transfer tube 442 is arranged upstream, and the evaporation heat transfer tube 446 is arranged downstream. Air heated by the former contributes to defrosting of the latter. COPYRIGHT: (C)2010,JPO&INPIT