Title:
COOLER FOR AUTOMATIC VENDING MACHINE
Document Type and Number:
Japanese Patent JP3799655
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a cooler capable of efficiently and uniformly obtaining a cooling effect without increasing the evaporation temperature of an evaporator or delaying cooling speed when all evaporators are driven.
SOLUTION: When all electromagnetic valves 19 (19a to 19c) are opened, a controller 22 judges whether the absolute value ΔTE of a difference between a maximum temperature and a minimum temperature in the evaporators 11 (11a to 11c) is more than a prescribed value ΔTEP or not. When the judged result is ΔTE<ΔTEP, a 1st correction opening degree θ1 is added to the opening degree θ of an electronic expansion valve 17, and at the time of ΔTE≥ΔTEP, an electromagnetic valve 19 corresponding to the evaporator 11 of the minimum temperature is closed, a 2nd correction opening degree θ2 smaller than the 1st correction opening degree θ1 is added to the aperture θand a refrigerant is allowed to flow into the evaporators 11 by the opening degree θ.
Inventors:
Akira Sugawara
Application Number:
JP10376996A
Publication Date:
July 19, 2006
Filing Date:
March 29, 1996
Export Citation:
Assignee:
Fuji Electric Retail Systems Co., Ltd.
International Classes:
G07F9/10; F25B5/02; F25D11/00; (IPC1-7): G07F9/10; F25B5/02; F25D11/00
Domestic Patent References:
| JP5189650A | ||||
| JP5258164A | ||||
| JP1224891A |
Attorney, Agent or Firm:
Tomoo Takahashi